--- /dev/null
+OMAP2/3 Display Subsystem
+-------------------------
+
+This is an almost total rewrite of the OMAP FB driver in drivers/video/omap
+(let's call it DSS1). The main differences between DSS1 and DSS2 are DSI,
+TV-out and multiple display support, but there are lots of small improvements
+also.
+
+The DSS2 driver (omapdss module) is in arch/arm/plat-omap/dss/, and the FB,
+panel and controller drivers are in drivers/video/omap2/. DSS1 and DSS2 live
+currently side by side, you can choose which one to use.
+
+Features
+--------
+
+Working and tested features include:
+
+- MIPI DPI (parallel) output
+- MIPI DSI output in command mode
+- MIPI DBI (RFBI) output
+- SDI output
+- TV output
+- All pieces can be compiled as a module or inside kernel
+- Use DISPC to update any of the outputs
+- Use CPU to update RFBI or DSI output
+- OMAP DISPC planes
+- RGB16, RGB24 packed, RGB24 unpacked
+- YUV2, UYVY
+- Scaling
+- Adjusting DSS FCK to find a good pixel clock
+- Use DSI DPLL to create DSS FCK
+
+Tested boards include:
+- OMAP3 SDP board
+- Beagle board
+- N810
+
+omapdss driver
+--------------
+
+The DSS driver does not itself have any support for Linux framebuffer, V4L or
+such like the current ones, but it has an internal kernel API that upper level
+drivers can use.
+
+The DSS driver models OMAP's overlays, overlay managers and displays in a
+flexible way to enable non-common multi-display configuration. In addition to
+modelling the hardware overlays, omapdss supports virtual overlays and overlay
+managers. These can be used when updating a display with CPU or system DMA.
+
+Panel and controller drivers
+----------------------------
+
+The drivers implement panel or controller specific functionality and are not
+usually visible to users except through omapfb driver. They register
+themselves to the DSS driver.
+
+omapfb driver
+-------------
+
+The omapfb driver implements arbitrary number of standard linux framebuffers.
+These framebuffers can be routed flexibly to any overlays, thus allowing very
+dynamic display architecture.
+
+The driver exports some omapfb specific ioctls, which are compatible with the
+ioctls in the old driver.
+
+The rest of the non standard features are exported via sysfs. Whether the final
+implementation will use sysfs, or ioctls, is still open.
+
+V4L2 drivers
+------------
+
+V4L2 is being implemented in TI.
+
+From omapdss point of view the V4L2 drivers should be similar to framebuffer
+driver.
+
+Architecture
+--------------------
+
+Some clarification what the different components do:
+
+ - Framebuffer is a memory area inside OMAP's SRAM/SDRAM that contains the
+ pixel data for the image. Framebuffer has width and height and color
+ depth.
+ - Overlay defines where the pixels are read from and where they go on the
+ screen. The overlay may be smaller than framebuffer, thus displaying only
+ part of the framebuffer. The position of the overlay may be changed if
+ the overlay is smaller than the display.
+ - Overlay manager combines the overlays in to one image and feeds them to
+ display.
+ - Display is the actual physical display device.
+
+A framebuffer can be connected to multiple overlays to show the same pixel data
+on all of the overlays. Note that in this case the overlay input sizes must be
+the same, but, in case of video overlays, the output size can be different. Any
+framebuffer can be connected to any overlay.
+
+An overlay can be connected to one overlay manager. Also DISPC overlays can be
+connected only to DISPC overlay managers, and virtual overlays can be only
+connected to virtual overlays.
+
+An overlay manager can be connected to one display. There are certain
+restrictions which kinds of displays an overlay manager can be connected:
+
+ - DISPC TV overlay manager can be only connected to TV display.
+ - Virtual overlay managers can only be connected to DBI or DSI displays.
+ - DISPC LCD overlay manager can be connected to all displays, except TV
+ display.
+
+Sysfs
+-----
+The sysfs interface is mainly used for testing. I don't think sysfs
+interface is the best for this in the final version, but I don't quite know
+what would be the best interfaces for these things.
+
+The sysfs interface is divided to two parts: DSS and FB.
+
+/sys/class/graphics/fb? directory:
+mirror 0=off, 1=on
+rotate Rotation 0-3 for 0, 90, 180, 270 degrees
+rotate_type 0 = DMA rotation, 1 = VRFB rotation
+overlays List of overlay numbers to which framebuffer pixels go
+phys_addr Physical address of the framebuffer
+virt_addr Virtual address of the framebuffer
+size Size of the framebuffer
+
+/sys/devices/platform/omapdss/overlay? directory:
+enabled 0=off, 1=on
+input_size width,height (ie. the framebuffer size)
+manager Destination overlay manager name
+name
+output_size width,height
+position x,y
+screen_width width
+global_alpha global alpha 0-255 0=transparent 255=opaque
+
+/sys/devices/platform/omapdss/manager? directory:
+display Destination display
+name
+alpha_blending_enabled 0=off, 1=on
+trans_key_enabled 0=off, 1=on
+trans_key_type gfx-destination, video-source
+trans_key_value transparency color key (RGB24)
+default_color default background color (RGB24)
+
+/sys/devices/platform/omapdss/display? directory:
+ctrl_name Controller name
+mirror 0=off, 1=on
+update_mode 0=off, 1=auto, 2=manual
+enabled 0=off, 1=on
+name
+rotate Rotation 0-3 for 0, 90, 180, 270 degrees
+timings Display timings (pixclock,xres/hfp/hbp/hsw,yres/vfp/vbp/vsw)
+ When writing, two special timings are accepted for tv-out:
+ "pal" and "ntsc"
+panel_name
+tear_elim Tearing elimination 0=off, 1=on
+
+There are also some debugfs files at <debugfs>/omapdss/ which show information
+about clocks and registers.
+
+Examples
+--------
+
+The following definitions have been made for the examples below:
+
+ovl0=/sys/devices/platform/omapdss/overlay0
+ovl1=/sys/devices/platform/omapdss/overlay1
+ovl2=/sys/devices/platform/omapdss/overlay2
+
+mgr0=/sys/devices/platform/omapdss/manager0
+mgr1=/sys/devices/platform/omapdss/manager1
+
+lcd=/sys/devices/platform/omapdss/display0
+dvi=/sys/devices/platform/omapdss/display1
+tv=/sys/devices/platform/omapdss/display2
+
+fb0=/sys/class/graphics/fb0
+fb1=/sys/class/graphics/fb1
+fb2=/sys/class/graphics/fb2
+
+Default setup on OMAP3 SDP
+--------------------------
+
+Here's the default setup on OMAP3 SDP board. All planes go to LCD. DVI
+and TV-out are not in use. The columns from left to right are:
+framebuffers, overlays, overlay managers, displays. Framebuffers are
+handled by omapfb, and the rest by the DSS.
+
+FB0 --- GFX -\ DVI
+FB1 --- VID1 --+- LCD ---- LCD
+FB2 --- VID2 -/ TV ----- TV
+
+Example: Switch from LCD to DVI
+----------------------
+
+w=`cat $dvi/timings | cut -d "," -f 2 | cut -d "/" -f 1`
+h=`cat $dvi/timings | cut -d "," -f 3 | cut -d "/" -f 1`
+
+echo "0" > $lcd/enabled
+echo "" > $mgr0/display
+fbset -fb /dev/fb0 -xres $w -yres $h -vxres $w -vyres $h
+# at this point you have to switch the dvi/lcd dip-switch from the omap board
+echo "dvi" > $mgr0/display
+echo "1" > $dvi/enabled
+
+After this the configuration looks like:
+
+FB0 --- GFX -\ -- DVI
+FB1 --- VID1 --+- LCD -/ LCD
+FB2 --- VID2 -/ TV ----- TV
+
+Example: Clone GFX overlay to LCD and TV
+-------------------------------
+
+w=`cat $tv/timings | cut -d "," -f 2 | cut -d "/" -f 1`
+h=`cat $tv/timings | cut -d "," -f 3 | cut -d "/" -f 1`
+
+echo "0" > $ovl0/enabled
+echo "0" > $ovl1/enabled
+
+echo "" > $fb1/overlays
+echo "0,1" > $fb0/overlays
+
+echo "$w,$h" > $ovl1/output_size
+echo "tv" > $ovl1/manager
+
+echo "1" > $ovl0/enabled
+echo "1" > $ovl1/enabled
+
+echo "1" > $tv/enabled
+
+After this the configuration looks like (only relevant parts shown):
+
+FB0 +-- GFX ---- LCD ---- LCD
+ \- VID1 ---- TV ---- TV
+
+Misc notes
+----------
+
+OMAP FB allocates the framebuffer memory using the OMAP VRAM allocator.
+
+Using DSI DPLL to generate pixel clock it is possible produce the pixel clock
+of 86.5MHz (max possible), and with that you get 1280x1024@57 output from DVI.
+
+Rotation and mirroring currently only supports RGB565 and RGB8888 modes. VRFB
+does not support mirroring.
+
+VRFB rotation requires much more memory than non-rotated framebuffer, so you
+probably need to increase your vram setting before using VRFB rotation. Also,
+many applications may not work with VRFB if they do not pay attention to all
+framebuffer parameters.
+
+Kernel boot arguments
+---------------------
+
+vram=<size>
+ - Amount of total VRAM to preallocate. For example, "10M". omapfb
+ allocates memory for framebuffers from VRAM.
+
+omapfb.mode=<display>:<mode>[,...]
+ - Default video mode for specified displays. For example,
+ "dvi:800x400MR-24@60". See drivers/video/modedb.c.
+ There are also two special modes: "pal" and "ntsc" that
+ can be used to tv out.
+
+omapfb.vram=<fbnum>:<size>[@<physaddr>][,...]
+ - VRAM allocated for a framebuffer. Normally omapfb allocates vram
+ depending on the display size. With this you can manually allocate
+ more or define the physical address of each framebuffer. For example,
+ "1:4M" to allocate 4M for fb1.
+
+omapfb.debug=<y|n>
+ - Enable debug printing. You have to have OMAPFB debug support enabled
+ in kernel config.
+
+omapfb.test=<y|n>
+ - Draw test pattern to framebuffer whenever framebuffer settings change.
+ You need to have OMAPFB debug support enabled in kernel config.
+
+omapfb.vrfb=<y|n>
+ - Use VRFB rotation for all framebuffers.
+
+omapfb.rotate=<angle>
+ - Default rotation applied to all framebuffers.
+ 0 - 0 degree rotation
+ 1 - 90 degree rotation
+ 2 - 180 degree rotation
+ 3 - 270 degree rotation
+
+omapfb.mirror=<y|n>
+ - Default mirror for all framebuffers. Only works with DMA rotation.
+
+omapdss.def_disp=<display>
+ - Name of default display, to which all overlays will be connected.
+ Common examples are "lcd" or "tv".
+
+omapdss.debug=<y|n>
+ - Enable debug printing. You have to have DSS debug support enabled in
+ kernel config.
+
+TODO
+----
+
+DSS locking
+
+Error checking
+- Lots of checks are missing or implemented just as BUG()
+
+System DMA update for DSI
+- Can be used for RGB16 and RGB24P modes. Probably not for RGB24U (how
+ to skip the empty byte?)
+
+OMAP1 support
+- Not sure if needed
+
S: Maintained
F: drivers/video/omap/
+OMAP DISPLAY SUBSYSTEM SUPPORT (DSS2)
+M: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+L: linux-omap@vger.kernel.org
+L: linux-fbdev@vger.kernel.org (moderated for non-subscribers)
+S: Maintained
+F: drivers/video/omap2/dss/
+F: drivers/video/omap2/vrfb.c
+F: drivers/video/omap2/vram.c
+F: Documentation/arm/OMAP/DSS
+
+OMAP FRAMEBUFFER SUPPORT (FOR DSS2)
+M: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+L: linux-omap@vger.kernel.org
+L: linux-fbdev@vger.kernel.org (moderated for non-subscribers)
+S: Maintained
+F: drivers/video/omap2/omapfb/
+
OMAP MMC SUPPORT
M: Jarkko Lavinen <jarkko.lavinen@nokia.com>
L: linux-omap@vger.kernel.org
#
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_VIRTUAL is not set
-CONFIG_FB_OMAP=y
-# CONFIG_FB_OMAP_LCDC_EXTERNAL is not set
+# CONFIG_FB_METRONOME is not set
+# CONFIG_FB_MB862XX is not set
+# CONFIG_FB_BROADSHEET is not set
+# CONFIG_FB_OMAP_LCD_VGA is not set
# CONFIG_FB_OMAP_BOOTLOADER_INIT is not set
-CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE=2
+CONFIG_OMAP2_VRAM=y
+CONFIG_OMAP2_VRFB=y
+CONFIG_OMAP2_DSS=y
+CONFIG_OMAP2_VRAM_SIZE=4
+CONFIG_OMAP2_DSS_DEBUG_SUPPORT=y
+# CONFIG_OMAP2_DSS_RFBI is not set
+CONFIG_OMAP2_DSS_VENC=y
+# CONFIG_OMAP2_DSS_SDI is not set
+# CONFIG_OMAP2_DSS_DSI is not set
+# CONFIG_OMAP2_DSS_FAKE_VSYNC is not set
+CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK=0
+CONFIG_FB_OMAP2=y
+CONFIG_FB_OMAP2_DEBUG_SUPPORT=y
+# CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE is not set
+CONFIG_FB_OMAP2_NUM_FBS=3
+
+#
+# OMAP2/3 Display Device Drivers
+#
+CONFIG_PANEL_GENERIC=y
+CONFIG_PANEL_SHARP_LS037V7DW01=y
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
#
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/clk.h>
+#include <linux/omapfb.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <plat/keypad.h>
#include <plat/common.h>
#include <plat/dsp_common.h>
-#include <plat/omapfb.h>
#include <plat/hwa742.h>
#include <plat/lcd_mipid.h>
#include <plat/mmc.h>
#include <plat/common.h>
#include <plat/dma.h>
#include <plat/gpmc.h>
+#include <plat/display.h>
#include <plat/control.h>
#include <plat/gpmc-smc91x.h>
},
};
-static struct platform_device sdp3430_lcd_device = {
- .name = "sdp2430_lcd",
- .id = -1,
+
+#define SDP3430_LCD_PANEL_BACKLIGHT_GPIO 8
+#define SDP3430_LCD_PANEL_ENABLE_GPIO 5
+
+static unsigned backlight_gpio;
+static unsigned enable_gpio;
+static int lcd_enabled;
+static int dvi_enabled;
+
+static void __init sdp3430_display_init(void)
+{
+ int r;
+
+ enable_gpio = SDP3430_LCD_PANEL_ENABLE_GPIO;
+ backlight_gpio = SDP3430_LCD_PANEL_BACKLIGHT_GPIO;
+
+ r = gpio_request(enable_gpio, "LCD reset");
+ if (r) {
+ printk(KERN_ERR "failed to get LCD reset GPIO\n");
+ goto err0;
+ }
+
+ r = gpio_request(backlight_gpio, "LCD Backlight");
+ if (r) {
+ printk(KERN_ERR "failed to get LCD backlight GPIO\n");
+ goto err1;
+ }
+
+ gpio_direction_output(enable_gpio, 0);
+ gpio_direction_output(backlight_gpio, 0);
+
+ return;
+err1:
+ gpio_free(enable_gpio);
+err0:
+ return;
+}
+
+static int sdp3430_panel_enable_lcd(struct omap_dss_device *dssdev)
+{
+ if (dvi_enabled) {
+ printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
+ return -EINVAL;
+ }
+
+ gpio_direction_output(enable_gpio, 1);
+ gpio_direction_output(backlight_gpio, 1);
+
+ lcd_enabled = 1;
+
+ return 0;
+}
+
+static void sdp3430_panel_disable_lcd(struct omap_dss_device *dssdev)
+{
+ lcd_enabled = 0;
+
+ gpio_direction_output(enable_gpio, 0);
+ gpio_direction_output(backlight_gpio, 0);
+}
+
+static int sdp3430_panel_enable_dvi(struct omap_dss_device *dssdev)
+{
+ if (lcd_enabled) {
+ printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
+ return -EINVAL;
+ }
+
+ dvi_enabled = 1;
+
+ return 0;
+}
+
+static void sdp3430_panel_disable_dvi(struct omap_dss_device *dssdev)
+{
+ dvi_enabled = 0;
+}
+
+static int sdp3430_panel_enable_tv(struct omap_dss_device *dssdev)
+{
+ return 0;
+}
+
+static void sdp3430_panel_disable_tv(struct omap_dss_device *dssdev)
+{
+}
+
+
+static struct omap_dss_device sdp3430_lcd_device = {
+ .name = "lcd",
+ .driver_name = "sharp_ls_panel",
+ .type = OMAP_DISPLAY_TYPE_DPI,
+ .phy.dpi.data_lines = 16,
+ .platform_enable = sdp3430_panel_enable_lcd,
+ .platform_disable = sdp3430_panel_disable_lcd,
};
-static struct regulator_consumer_supply sdp3430_vdac_supply = {
- .supply = "vdac",
- .dev = &sdp3430_lcd_device.dev,
+static struct omap_dss_device sdp3430_dvi_device = {
+ .name = "dvi",
+ .driver_name = "generic_panel",
+ .type = OMAP_DISPLAY_TYPE_DPI,
+ .phy.dpi.data_lines = 24,
+ .platform_enable = sdp3430_panel_enable_dvi,
+ .platform_disable = sdp3430_panel_disable_dvi,
};
-static struct regulator_consumer_supply sdp3430_vdvi_supply = {
- .supply = "vdvi",
- .dev = &sdp3430_lcd_device.dev,
+static struct omap_dss_device sdp3430_tv_device = {
+ .name = "tv",
+ .driver_name = "venc",
+ .type = OMAP_DISPLAY_TYPE_VENC,
+ .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
+ .platform_enable = sdp3430_panel_enable_tv,
+ .platform_disable = sdp3430_panel_disable_tv,
};
-static struct platform_device *sdp3430_devices[] __initdata = {
+
+static struct omap_dss_device *sdp3430_dss_devices[] = {
&sdp3430_lcd_device,
+ &sdp3430_dvi_device,
+ &sdp3430_tv_device,
};
-static struct omap_lcd_config sdp3430_lcd_config __initdata = {
- .ctrl_name = "internal",
+static struct omap_dss_board_info sdp3430_dss_data = {
+ .num_devices = ARRAY_SIZE(sdp3430_dss_devices),
+ .devices = sdp3430_dss_devices,
+ .default_device = &sdp3430_lcd_device,
+};
+
+static struct platform_device sdp3430_dss_device = {
+ .name = "omapdss",
+ .id = -1,
+ .dev = {
+ .platform_data = &sdp3430_dss_data,
+ },
+};
+
+static struct regulator_consumer_supply sdp3430_vdda_dac_supply = {
+ .supply = "vdda_dac",
+ .dev = &sdp3430_dss_device.dev,
+};
+
+static struct platform_device *sdp3430_devices[] __initdata = {
+ &sdp3430_dss_device,
};
static struct omap_board_config_kernel sdp3430_config[] __initdata = {
- { OMAP_TAG_LCD, &sdp3430_lcd_config },
};
static void __init omap_3430sdp_init_irq(void)
| REGULATOR_CHANGE_STATUS,
},
.num_consumer_supplies = 1,
- .consumer_supplies = &sdp3430_vdac_supply,
+ .consumer_supplies = &sdp3430_vdda_dac_supply,
};
/* VPLL2 for digital video outputs */
+static struct regulator_consumer_supply sdp3430_vpll2_supplies[] = {
+ {
+ .supply = "vdvi",
+ .dev = &sdp3430_lcd_device.dev,
+ },
+ {
+ .supply = "vdds_dsi",
+ .dev = &sdp3430_dss_device.dev,
+ }
+};
+
static struct regulator_init_data sdp3430_vpll2 = {
.constraints = {
.name = "VDVI",
.min_uV = 1800000,
.max_uV = 1800000,
+ .apply_uV = true,
.valid_modes_mask = REGULATOR_MODE_NORMAL
| REGULATOR_MODE_STANDBY,
.valid_ops_mask = REGULATOR_CHANGE_MODE
| REGULATOR_CHANGE_STATUS,
},
- .num_consumer_supplies = 1,
- .consumer_supplies = &sdp3430_vdvi_supply,
+ .num_consumer_supplies = ARRAY_SIZE(sdp3430_vpll2_supplies),
+ .consumer_supplies = sdp3430_vpll2_supplies,
};
static struct twl4030_codec_audio_data sdp3430_audio = {
omap_serial_init();
usb_musb_init();
board_smc91x_init();
+ sdp3430_display_init();
enable_board_wakeup_source();
usb_ehci_init(&ehci_pdata);
}
CLK(NULL, "mdm_ick", &mdm_ick, CK_243X),
CLK(NULL, "mdm_osc_ck", &mdm_osc_ck, CK_243X),
/* DSS domain clocks */
- CLK("omapfb", "ick", &dss_ick, CK_243X | CK_242X),
- CLK("omapfb", "dss1_fck", &dss1_fck, CK_243X | CK_242X),
- CLK("omapfb", "dss2_fck", &dss2_fck, CK_243X | CK_242X),
- CLK("omapfb", "tv_fck", &dss_54m_fck, CK_243X | CK_242X),
+ CLK("omapdss", "ick", &dss_ick, CK_243X | CK_242X),
+ CLK("omapdss", "dss1_fck", &dss1_fck, CK_243X | CK_242X),
+ CLK("omapdss", "dss2_fck", &dss2_fck, CK_243X | CK_242X),
+ CLK("omapdss", "tv_fck", &dss_54m_fck, CK_243X | CK_242X),
/* L3 domain clocks */
CLK(NULL, "core_l3_ck", &core_l3_ck, CK_243X | CK_242X),
CLK(NULL, "ssi_fck", &ssi_ssr_sst_fck, CK_243X | CK_242X),
CLK("omap_rng", "ick", &rng_ick, CK_343X),
CLK(NULL, "sha11_ick", &sha11_ick, CK_343X),
CLK(NULL, "des1_ick", &des1_ick, CK_343X),
- CLK("omapfb", "dss1_fck", &dss1_alwon_fck_3430es1, CK_3430ES1),
- CLK("omapfb", "dss1_fck", &dss1_alwon_fck_3430es2, CK_3430ES2),
- CLK("omapfb", "tv_fck", &dss_tv_fck, CK_343X),
- CLK("omapfb", "video_fck", &dss_96m_fck, CK_343X),
- CLK("omapfb", "dss2_fck", &dss2_alwon_fck, CK_343X),
- CLK("omapfb", "ick", &dss_ick_3430es1, CK_3430ES1),
- CLK("omapfb", "ick", &dss_ick_3430es2, CK_3430ES2),
+ CLK("omapdss", "dss1_fck", &dss1_alwon_fck_3430es1, CK_3430ES1),
+ CLK("omapdss", "dss1_fck", &dss1_alwon_fck_3430es2, CK_3430ES2),
+ CLK("omapdss", "tv_fck", &dss_tv_fck, CK_343X),
+ CLK("omapdss", "video_fck", &dss_96m_fck, CK_343X),
+ CLK("omapdss", "dss2_fck", &dss2_alwon_fck, CK_343X),
+ CLK("omapdss", "ick", &dss_ick_3430es1, CK_3430ES1),
+ CLK("omapdss", "ick", &dss_ick_3430es2, CK_3430ES2),
CLK(NULL, "cam_mclk", &cam_mclk, CK_343X),
CLK(NULL, "cam_ick", &cam_ick, CK_343X),
CLK(NULL, "csi2_96m_fck", &csi2_96m_fck, CK_343X),
#include <linux/init.h>
#include <linux/io.h>
#include <linux/clk.h>
+#include <linux/omapfb.h>
#include <asm/tlb.h>
#include <asm/mach/map.h>
#include <plat/mux.h>
-#include <plat/omapfb.h>
#include <plat/sram.h>
#include <plat/sdrc.h>
#include <plat/gpmc.h>
#include <plat/serial.h>
+#include <plat/vram.h>
#ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once clkdev is ready */
#include "clock.h"
omap2_check_revision();
omap_sram_init();
omapfb_reserve_sdram();
+ omap_vram_reserve_sdram();
}
/*
sdrc_write_reg(l, SDRC_POWER);
omap2_sms_save_context();
}
+
+void omap2_sms_write_rot_control(u32 val, unsigned ctx)
+{
+ sms_write_reg(val, SMS_ROT_CONTROL(ctx));
+}
+
+void omap2_sms_write_rot_size(u32 val, unsigned ctx)
+{
+ sms_write_reg(val, SMS_ROT_SIZE(ctx));
+}
+
+void omap2_sms_write_rot_physical_ba(u32 val, unsigned ctx)
+{
+ sms_write_reg(val, SMS_ROT_PHYSICAL_BA(ctx));
+}
+
#include <linux/platform_device.h>
#include <linux/bootmem.h>
#include <linux/io.h>
+#include <linux/omapfb.h>
#include <mach/hardware.h>
#include <asm/mach/map.h>
#include <plat/board.h>
#include <plat/sram.h>
-#include <plat/omapfb.h>
#if defined(CONFIG_FB_OMAP) || defined(CONFIG_FB_OMAP_MODULE)
.num_resources = 0,
};
+void omapfb_set_platform_data(struct omapfb_platform_data *data)
+{
+}
+
static inline int ranges_overlap(unsigned long start1, unsigned long size1,
unsigned long start2, unsigned long size2)
{
arch_initcall(omap_init_fb);
-#else
+#elif defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE)
+
+static u64 omap_fb_dma_mask = ~(u32)0;
+static struct omapfb_platform_data omapfb_config;
+
+static struct platform_device omap_fb_device = {
+ .name = "omapfb",
+ .id = -1,
+ .dev = {
+ .dma_mask = &omap_fb_dma_mask,
+ .coherent_dma_mask = ~(u32)0,
+ .platform_data = &omapfb_config,
+ },
+ .num_resources = 0,
+};
+
+void omapfb_set_platform_data(struct omapfb_platform_data *data)
+{
+ omapfb_config = *data;
+}
+
+static inline int omap_init_fb(void)
+{
+ return platform_device_register(&omap_fb_device);
+}
+
+arch_initcall(omap_init_fb);
void omapfb_reserve_sdram(void) {}
unsigned long omapfb_reserve_sram(unsigned long sram_pstart,
return 0;
}
+#else
+
+void omapfb_set_platform_data(struct omapfb_platform_data *data)
+{
+}
+
+void omapfb_reserve_sdram(void) {}
+unsigned long omapfb_reserve_sram(unsigned long sram_pstart,
+ unsigned long sram_vstart,
+ unsigned long sram_size,
+ unsigned long start_avail,
+ unsigned long size_avail)
+{
+ return 0;
+}
#endif
--- /dev/null
+/*
+ * linux/include/asm-arm/arch-omap/display.h
+ *
+ * Copyright (C) 2008 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __ASM_ARCH_OMAP_DISPLAY_H
+#define __ASM_ARCH_OMAP_DISPLAY_H
+
+#include <linux/list.h>
+#include <linux/kobject.h>
+#include <linux/device.h>
+#include <asm/atomic.h>
+
+#define DISPC_IRQ_FRAMEDONE (1 << 0)
+#define DISPC_IRQ_VSYNC (1 << 1)
+#define DISPC_IRQ_EVSYNC_EVEN (1 << 2)
+#define DISPC_IRQ_EVSYNC_ODD (1 << 3)
+#define DISPC_IRQ_ACBIAS_COUNT_STAT (1 << 4)
+#define DISPC_IRQ_PROG_LINE_NUM (1 << 5)
+#define DISPC_IRQ_GFX_FIFO_UNDERFLOW (1 << 6)
+#define DISPC_IRQ_GFX_END_WIN (1 << 7)
+#define DISPC_IRQ_PAL_GAMMA_MASK (1 << 8)
+#define DISPC_IRQ_OCP_ERR (1 << 9)
+#define DISPC_IRQ_VID1_FIFO_UNDERFLOW (1 << 10)
+#define DISPC_IRQ_VID1_END_WIN (1 << 11)
+#define DISPC_IRQ_VID2_FIFO_UNDERFLOW (1 << 12)
+#define DISPC_IRQ_VID2_END_WIN (1 << 13)
+#define DISPC_IRQ_SYNC_LOST (1 << 14)
+#define DISPC_IRQ_SYNC_LOST_DIGIT (1 << 15)
+#define DISPC_IRQ_WAKEUP (1 << 16)
+
+struct omap_dss_device;
+struct omap_overlay_manager;
+
+enum omap_display_type {
+ OMAP_DISPLAY_TYPE_NONE = 0,
+ OMAP_DISPLAY_TYPE_DPI = 1 << 0,
+ OMAP_DISPLAY_TYPE_DBI = 1 << 1,
+ OMAP_DISPLAY_TYPE_SDI = 1 << 2,
+ OMAP_DISPLAY_TYPE_DSI = 1 << 3,
+ OMAP_DISPLAY_TYPE_VENC = 1 << 4,
+};
+
+enum omap_plane {
+ OMAP_DSS_GFX = 0,
+ OMAP_DSS_VIDEO1 = 1,
+ OMAP_DSS_VIDEO2 = 2
+};
+
+enum omap_channel {
+ OMAP_DSS_CHANNEL_LCD = 0,
+ OMAP_DSS_CHANNEL_DIGIT = 1,
+};
+
+enum omap_color_mode {
+ OMAP_DSS_COLOR_CLUT1 = 1 << 0, /* BITMAP 1 */
+ OMAP_DSS_COLOR_CLUT2 = 1 << 1, /* BITMAP 2 */
+ OMAP_DSS_COLOR_CLUT4 = 1 << 2, /* BITMAP 4 */
+ OMAP_DSS_COLOR_CLUT8 = 1 << 3, /* BITMAP 8 */
+ OMAP_DSS_COLOR_RGB12U = 1 << 4, /* RGB12, 16-bit container */
+ OMAP_DSS_COLOR_ARGB16 = 1 << 5, /* ARGB16 */
+ OMAP_DSS_COLOR_RGB16 = 1 << 6, /* RGB16 */
+ OMAP_DSS_COLOR_RGB24U = 1 << 7, /* RGB24, 32-bit container */
+ OMAP_DSS_COLOR_RGB24P = 1 << 8, /* RGB24, 24-bit container */
+ OMAP_DSS_COLOR_YUV2 = 1 << 9, /* YUV2 4:2:2 co-sited */
+ OMAP_DSS_COLOR_UYVY = 1 << 10, /* UYVY 4:2:2 co-sited */
+ OMAP_DSS_COLOR_ARGB32 = 1 << 11, /* ARGB32 */
+ OMAP_DSS_COLOR_RGBA32 = 1 << 12, /* RGBA32 */
+ OMAP_DSS_COLOR_RGBX32 = 1 << 13, /* RGBx32 */
+
+ OMAP_DSS_COLOR_GFX_OMAP2 =
+ OMAP_DSS_COLOR_CLUT1 | OMAP_DSS_COLOR_CLUT2 |
+ OMAP_DSS_COLOR_CLUT4 | OMAP_DSS_COLOR_CLUT8 |
+ OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_RGB16 |
+ OMAP_DSS_COLOR_RGB24U | OMAP_DSS_COLOR_RGB24P,
+
+ OMAP_DSS_COLOR_VID_OMAP2 =
+ OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U |
+ OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_YUV2 |
+ OMAP_DSS_COLOR_UYVY,
+
+ OMAP_DSS_COLOR_GFX_OMAP3 =
+ OMAP_DSS_COLOR_CLUT1 | OMAP_DSS_COLOR_CLUT2 |
+ OMAP_DSS_COLOR_CLUT4 | OMAP_DSS_COLOR_CLUT8 |
+ OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_ARGB16 |
+ OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U |
+ OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_ARGB32 |
+ OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_RGBX32,
+
+ OMAP_DSS_COLOR_VID1_OMAP3 =
+ OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_RGB16 |
+ OMAP_DSS_COLOR_RGB24U | OMAP_DSS_COLOR_RGB24P |
+ OMAP_DSS_COLOR_YUV2 | OMAP_DSS_COLOR_UYVY,
+
+ OMAP_DSS_COLOR_VID2_OMAP3 =
+ OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_ARGB16 |
+ OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U |
+ OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_YUV2 |
+ OMAP_DSS_COLOR_UYVY | OMAP_DSS_COLOR_ARGB32 |
+ OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_RGBX32,
+};
+
+enum omap_lcd_display_type {
+ OMAP_DSS_LCD_DISPLAY_STN,
+ OMAP_DSS_LCD_DISPLAY_TFT,
+};
+
+enum omap_dss_load_mode {
+ OMAP_DSS_LOAD_CLUT_AND_FRAME = 0,
+ OMAP_DSS_LOAD_CLUT_ONLY = 1,
+ OMAP_DSS_LOAD_FRAME_ONLY = 2,
+ OMAP_DSS_LOAD_CLUT_ONCE_FRAME = 3,
+};
+
+enum omap_dss_trans_key_type {
+ OMAP_DSS_COLOR_KEY_GFX_DST = 0,
+ OMAP_DSS_COLOR_KEY_VID_SRC = 1,
+};
+
+enum omap_rfbi_te_mode {
+ OMAP_DSS_RFBI_TE_MODE_1 = 1,
+ OMAP_DSS_RFBI_TE_MODE_2 = 2,
+};
+
+enum omap_panel_config {
+ OMAP_DSS_LCD_IVS = 1<<0,
+ OMAP_DSS_LCD_IHS = 1<<1,
+ OMAP_DSS_LCD_IPC = 1<<2,
+ OMAP_DSS_LCD_IEO = 1<<3,
+ OMAP_DSS_LCD_RF = 1<<4,
+ OMAP_DSS_LCD_ONOFF = 1<<5,
+
+ OMAP_DSS_LCD_TFT = 1<<20,
+};
+
+enum omap_dss_venc_type {
+ OMAP_DSS_VENC_TYPE_COMPOSITE,
+ OMAP_DSS_VENC_TYPE_SVIDEO,
+};
+
+enum omap_display_caps {
+ OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE = 1 << 0,
+ OMAP_DSS_DISPLAY_CAP_TEAR_ELIM = 1 << 1,
+};
+
+enum omap_dss_update_mode {
+ OMAP_DSS_UPDATE_DISABLED = 0,
+ OMAP_DSS_UPDATE_AUTO,
+ OMAP_DSS_UPDATE_MANUAL,
+};
+
+enum omap_dss_display_state {
+ OMAP_DSS_DISPLAY_DISABLED = 0,
+ OMAP_DSS_DISPLAY_ACTIVE,
+ OMAP_DSS_DISPLAY_SUSPENDED,
+};
+
+/* XXX perhaps this should be removed */
+enum omap_dss_overlay_managers {
+ OMAP_DSS_OVL_MGR_LCD,
+ OMAP_DSS_OVL_MGR_TV,
+};
+
+enum omap_dss_rotation_type {
+ OMAP_DSS_ROT_DMA = 0,
+ OMAP_DSS_ROT_VRFB = 1,
+};
+
+/* clockwise rotation angle */
+enum omap_dss_rotation_angle {
+ OMAP_DSS_ROT_0 = 0,
+ OMAP_DSS_ROT_90 = 1,
+ OMAP_DSS_ROT_180 = 2,
+ OMAP_DSS_ROT_270 = 3,
+};
+
+enum omap_overlay_caps {
+ OMAP_DSS_OVL_CAP_SCALE = 1 << 0,
+ OMAP_DSS_OVL_CAP_DISPC = 1 << 1,
+};
+
+enum omap_overlay_manager_caps {
+ OMAP_DSS_OVL_MGR_CAP_DISPC = 1 << 0,
+};
+
+/* RFBI */
+
+struct rfbi_timings {
+ int cs_on_time;
+ int cs_off_time;
+ int we_on_time;
+ int we_off_time;
+ int re_on_time;
+ int re_off_time;
+ int we_cycle_time;
+ int re_cycle_time;
+ int cs_pulse_width;
+ int access_time;
+
+ int clk_div;
+
+ u32 tim[5]; /* set by rfbi_convert_timings() */
+
+ int converted;
+};
+
+void omap_rfbi_write_command(const void *buf, u32 len);
+void omap_rfbi_read_data(void *buf, u32 len);
+void omap_rfbi_write_data(const void *buf, u32 len);
+void omap_rfbi_write_pixels(const void __iomem *buf, int scr_width,
+ u16 x, u16 y,
+ u16 w, u16 h);
+int omap_rfbi_enable_te(bool enable, unsigned line);
+int omap_rfbi_setup_te(enum omap_rfbi_te_mode mode,
+ unsigned hs_pulse_time, unsigned vs_pulse_time,
+ int hs_pol_inv, int vs_pol_inv, int extif_div);
+
+/* DSI */
+void dsi_bus_lock(void);
+void dsi_bus_unlock(void);
+int dsi_vc_dcs_write(int channel, u8 *data, int len);
+int dsi_vc_dcs_write_nosync(int channel, u8 *data, int len);
+int dsi_vc_dcs_read(int channel, u8 dcs_cmd, u8 *buf, int buflen);
+int dsi_vc_set_max_rx_packet_size(int channel, u16 len);
+int dsi_vc_send_null(int channel);
+int dsi_vc_send_bta_sync(int channel);
+
+/* Board specific data */
+struct omap_dss_board_info {
+ int (*get_last_off_on_transaction_id)(struct device *dev);
+ int num_devices;
+ struct omap_dss_device **devices;
+ struct omap_dss_device *default_device;
+};
+
+struct omap_video_timings {
+ /* Unit: pixels */
+ u16 x_res;
+ /* Unit: pixels */
+ u16 y_res;
+ /* Unit: KHz */
+ u32 pixel_clock;
+ /* Unit: pixel clocks */
+ u16 hsw; /* Horizontal synchronization pulse width */
+ /* Unit: pixel clocks */
+ u16 hfp; /* Horizontal front porch */
+ /* Unit: pixel clocks */
+ u16 hbp; /* Horizontal back porch */
+ /* Unit: line clocks */
+ u16 vsw; /* Vertical synchronization pulse width */
+ /* Unit: line clocks */
+ u16 vfp; /* Vertical front porch */
+ /* Unit: line clocks */
+ u16 vbp; /* Vertical back porch */
+};
+
+#ifdef CONFIG_OMAP2_DSS_VENC
+/* Hardcoded timings for tv modes. Venc only uses these to
+ * identify the mode, and does not actually use the configs
+ * itself. However, the configs should be something that
+ * a normal monitor can also show */
+const extern struct omap_video_timings omap_dss_pal_timings;
+const extern struct omap_video_timings omap_dss_ntsc_timings;
+#endif
+
+struct omap_overlay_info {
+ bool enabled;
+
+ u32 paddr;
+ void __iomem *vaddr;
+ u16 screen_width;
+ u16 width;
+ u16 height;
+ enum omap_color_mode color_mode;
+ u8 rotation;
+ enum omap_dss_rotation_type rotation_type;
+ bool mirror;
+
+ u16 pos_x;
+ u16 pos_y;
+ u16 out_width; /* if 0, out_width == width */
+ u16 out_height; /* if 0, out_height == height */
+ u8 global_alpha;
+};
+
+struct omap_overlay {
+ struct kobject kobj;
+ struct list_head list;
+
+ /* static fields */
+ const char *name;
+ int id;
+ enum omap_color_mode supported_modes;
+ enum omap_overlay_caps caps;
+
+ /* dynamic fields */
+ struct omap_overlay_manager *manager;
+ struct omap_overlay_info info;
+
+ /* if true, info has been changed, but not applied() yet */
+ bool info_dirty;
+
+ int (*set_manager)(struct omap_overlay *ovl,
+ struct omap_overlay_manager *mgr);
+ int (*unset_manager)(struct omap_overlay *ovl);
+
+ int (*set_overlay_info)(struct omap_overlay *ovl,
+ struct omap_overlay_info *info);
+ void (*get_overlay_info)(struct omap_overlay *ovl,
+ struct omap_overlay_info *info);
+
+ int (*wait_for_go)(struct omap_overlay *ovl);
+};
+
+struct omap_overlay_manager_info {
+ u32 default_color;
+
+ enum omap_dss_trans_key_type trans_key_type;
+ u32 trans_key;
+ bool trans_enabled;
+
+ bool alpha_enabled;
+};
+
+struct omap_overlay_manager {
+ struct kobject kobj;
+ struct list_head list;
+
+ /* static fields */
+ const char *name;
+ int id;
+ enum omap_overlay_manager_caps caps;
+ int num_overlays;
+ struct omap_overlay **overlays;
+ enum omap_display_type supported_displays;
+
+ /* dynamic fields */
+ struct omap_dss_device *device;
+ struct omap_overlay_manager_info info;
+
+ bool device_changed;
+ /* if true, info has been changed but not applied() yet */
+ bool info_dirty;
+
+ int (*set_device)(struct omap_overlay_manager *mgr,
+ struct omap_dss_device *dssdev);
+ int (*unset_device)(struct omap_overlay_manager *mgr);
+
+ int (*set_manager_info)(struct omap_overlay_manager *mgr,
+ struct omap_overlay_manager_info *info);
+ void (*get_manager_info)(struct omap_overlay_manager *mgr,
+ struct omap_overlay_manager_info *info);
+
+ int (*apply)(struct omap_overlay_manager *mgr);
+ int (*wait_for_go)(struct omap_overlay_manager *mgr);
+};
+
+struct omap_dss_device {
+ struct device dev;
+
+ enum omap_display_type type;
+
+ union {
+ struct {
+ u8 data_lines;
+ } dpi;
+
+ struct {
+ u8 channel;
+ u8 data_lines;
+ } rfbi;
+
+ struct {
+ u8 datapairs;
+ } sdi;
+
+ struct {
+ u8 clk_lane;
+ u8 clk_pol;
+ u8 data1_lane;
+ u8 data1_pol;
+ u8 data2_lane;
+ u8 data2_pol;
+
+ struct {
+ u16 regn;
+ u16 regm;
+ u16 regm3;
+ u16 regm4;
+
+ u16 lp_clk_div;
+
+ u16 lck_div;
+ u16 pck_div;
+ } div;
+
+ bool ext_te;
+ u8 ext_te_gpio;
+ } dsi;
+
+ struct {
+ enum omap_dss_venc_type type;
+ bool invert_polarity;
+ } venc;
+ } phy;
+
+ struct {
+ struct omap_video_timings timings;
+
+ int acbi; /* ac-bias pin transitions per interrupt */
+ /* Unit: line clocks */
+ int acb; /* ac-bias pin frequency */
+
+ enum omap_panel_config config;
+
+ u8 recommended_bpp;
+
+ struct omap_dss_device *ctrl;
+ } panel;
+
+ struct {
+ u8 pixel_size;
+ struct rfbi_timings rfbi_timings;
+ struct omap_dss_device *panel;
+ } ctrl;
+
+ int reset_gpio;
+
+ int max_backlight_level;
+
+ const char *name;
+
+ /* used to match device to driver */
+ const char *driver_name;
+
+ void *data;
+
+ struct omap_dss_driver *driver;
+
+ /* helper variable for driver suspend/resume */
+ bool activate_after_resume;
+
+ enum omap_display_caps caps;
+
+ struct omap_overlay_manager *manager;
+
+ enum omap_dss_display_state state;
+
+ int (*enable)(struct omap_dss_device *dssdev);
+ void (*disable)(struct omap_dss_device *dssdev);
+
+ int (*suspend)(struct omap_dss_device *dssdev);
+ int (*resume)(struct omap_dss_device *dssdev);
+
+ void (*get_resolution)(struct omap_dss_device *dssdev,
+ u16 *xres, u16 *yres);
+ int (*get_recommended_bpp)(struct omap_dss_device *dssdev);
+
+ int (*check_timings)(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings);
+ void (*set_timings)(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings);
+ void (*get_timings)(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings);
+ int (*update)(struct omap_dss_device *dssdev,
+ u16 x, u16 y, u16 w, u16 h);
+ int (*sync)(struct omap_dss_device *dssdev);
+ int (*wait_vsync)(struct omap_dss_device *dssdev);
+
+ int (*set_update_mode)(struct omap_dss_device *dssdev,
+ enum omap_dss_update_mode);
+ enum omap_dss_update_mode (*get_update_mode)
+ (struct omap_dss_device *dssdev);
+
+ int (*enable_te)(struct omap_dss_device *dssdev, bool enable);
+ int (*get_te)(struct omap_dss_device *dssdev);
+
+ u8 (*get_rotate)(struct omap_dss_device *dssdev);
+ int (*set_rotate)(struct omap_dss_device *dssdev, u8 rotate);
+
+ bool (*get_mirror)(struct omap_dss_device *dssdev);
+ int (*set_mirror)(struct omap_dss_device *dssdev, bool enable);
+
+ int (*run_test)(struct omap_dss_device *dssdev, int test);
+ int (*memory_read)(struct omap_dss_device *dssdev,
+ void *buf, size_t size,
+ u16 x, u16 y, u16 w, u16 h);
+
+ int (*set_wss)(struct omap_dss_device *dssdev, u32 wss);
+ u32 (*get_wss)(struct omap_dss_device *dssdev);
+
+ /* platform specific */
+ int (*platform_enable)(struct omap_dss_device *dssdev);
+ void (*platform_disable)(struct omap_dss_device *dssdev);
+ int (*set_backlight)(struct omap_dss_device *dssdev, int level);
+ int (*get_backlight)(struct omap_dss_device *dssdev);
+};
+
+struct omap_dss_driver {
+ struct device_driver driver;
+
+ int (*probe)(struct omap_dss_device *);
+ void (*remove)(struct omap_dss_device *);
+
+ int (*enable)(struct omap_dss_device *display);
+ void (*disable)(struct omap_dss_device *display);
+ int (*suspend)(struct omap_dss_device *display);
+ int (*resume)(struct omap_dss_device *display);
+ int (*run_test)(struct omap_dss_device *display, int test);
+
+ void (*setup_update)(struct omap_dss_device *dssdev,
+ u16 x, u16 y, u16 w, u16 h);
+
+ int (*enable_te)(struct omap_dss_device *dssdev, bool enable);
+ int (*wait_for_te)(struct omap_dss_device *dssdev);
+
+ u8 (*get_rotate)(struct omap_dss_device *dssdev);
+ int (*set_rotate)(struct omap_dss_device *dssdev, u8 rotate);
+
+ bool (*get_mirror)(struct omap_dss_device *dssdev);
+ int (*set_mirror)(struct omap_dss_device *dssdev, bool enable);
+
+ int (*memory_read)(struct omap_dss_device *dssdev,
+ void *buf, size_t size,
+ u16 x, u16 y, u16 w, u16 h);
+};
+
+int omap_dss_register_driver(struct omap_dss_driver *);
+void omap_dss_unregister_driver(struct omap_dss_driver *);
+
+int omap_dss_register_device(struct omap_dss_device *);
+void omap_dss_unregister_device(struct omap_dss_device *);
+
+void omap_dss_get_device(struct omap_dss_device *dssdev);
+void omap_dss_put_device(struct omap_dss_device *dssdev);
+#define for_each_dss_dev(d) while ((d = omap_dss_get_next_device(d)) != NULL)
+struct omap_dss_device *omap_dss_get_next_device(struct omap_dss_device *from);
+struct omap_dss_device *omap_dss_find_device(void *data,
+ int (*match)(struct omap_dss_device *dssdev, void *data));
+
+int omap_dss_start_device(struct omap_dss_device *dssdev);
+void omap_dss_stop_device(struct omap_dss_device *dssdev);
+
+int omap_dss_get_num_overlay_managers(void);
+struct omap_overlay_manager *omap_dss_get_overlay_manager(int num);
+
+int omap_dss_get_num_overlays(void);
+struct omap_overlay *omap_dss_get_overlay(int num);
+
+typedef void (*omap_dispc_isr_t) (void *arg, u32 mask);
+int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask);
+int omap_dispc_unregister_isr(omap_dispc_isr_t isr, void *arg, u32 mask);
+
+int omap_dispc_wait_for_irq_timeout(u32 irqmask, unsigned long timeout);
+int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask,
+ unsigned long timeout);
+
+#define to_dss_driver(x) container_of((x), struct omap_dss_driver, driver)
+#define to_dss_device(x) container_of((x), struct omap_dss_device, dev)
+
+#endif
+++ /dev/null
-/*
- * File: arch/arm/plat-omap/include/mach/omapfb.h
- *
- * Framebuffer driver for TI OMAP boards
- *
- * Copyright (C) 2004 Nokia Corporation
- * Author: Imre Deak <imre.deak@nokia.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#ifndef __OMAPFB_H
-#define __OMAPFB_H
-
-#include <asm/ioctl.h>
-#include <asm/types.h>
-
-/* IOCTL commands. */
-
-#define OMAP_IOW(num, dtype) _IOW('O', num, dtype)
-#define OMAP_IOR(num, dtype) _IOR('O', num, dtype)
-#define OMAP_IOWR(num, dtype) _IOWR('O', num, dtype)
-#define OMAP_IO(num) _IO('O', num)
-
-#define OMAPFB_MIRROR OMAP_IOW(31, int)
-#define OMAPFB_SYNC_GFX OMAP_IO(37)
-#define OMAPFB_VSYNC OMAP_IO(38)
-#define OMAPFB_SET_UPDATE_MODE OMAP_IOW(40, int)
-#define OMAPFB_GET_CAPS OMAP_IOR(42, struct omapfb_caps)
-#define OMAPFB_GET_UPDATE_MODE OMAP_IOW(43, int)
-#define OMAPFB_LCD_TEST OMAP_IOW(45, int)
-#define OMAPFB_CTRL_TEST OMAP_IOW(46, int)
-#define OMAPFB_UPDATE_WINDOW_OLD OMAP_IOW(47, struct omapfb_update_window_old)
-#define OMAPFB_SET_COLOR_KEY OMAP_IOW(50, struct omapfb_color_key)
-#define OMAPFB_GET_COLOR_KEY OMAP_IOW(51, struct omapfb_color_key)
-#define OMAPFB_SETUP_PLANE OMAP_IOW(52, struct omapfb_plane_info)
-#define OMAPFB_QUERY_PLANE OMAP_IOW(53, struct omapfb_plane_info)
-#define OMAPFB_UPDATE_WINDOW OMAP_IOW(54, struct omapfb_update_window)
-#define OMAPFB_SETUP_MEM OMAP_IOW(55, struct omapfb_mem_info)
-#define OMAPFB_QUERY_MEM OMAP_IOW(56, struct omapfb_mem_info)
-
-#define OMAPFB_CAPS_GENERIC_MASK 0x00000fff
-#define OMAPFB_CAPS_LCDC_MASK 0x00fff000
-#define OMAPFB_CAPS_PANEL_MASK 0xff000000
-
-#define OMAPFB_CAPS_MANUAL_UPDATE 0x00001000
-#define OMAPFB_CAPS_TEARSYNC 0x00002000
-#define OMAPFB_CAPS_PLANE_RELOCATE_MEM 0x00004000
-#define OMAPFB_CAPS_PLANE_SCALE 0x00008000
-#define OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE 0x00010000
-#define OMAPFB_CAPS_WINDOW_SCALE 0x00020000
-#define OMAPFB_CAPS_WINDOW_OVERLAY 0x00040000
-#define OMAPFB_CAPS_WINDOW_ROTATE 0x00080000
-#define OMAPFB_CAPS_SET_BACKLIGHT 0x01000000
-
-/* Values from DSP must map to lower 16-bits */
-#define OMAPFB_FORMAT_MASK 0x00ff
-#define OMAPFB_FORMAT_FLAG_DOUBLE 0x0100
-#define OMAPFB_FORMAT_FLAG_TEARSYNC 0x0200
-#define OMAPFB_FORMAT_FLAG_FORCE_VSYNC 0x0400
-#define OMAPFB_FORMAT_FLAG_ENABLE_OVERLAY 0x0800
-#define OMAPFB_FORMAT_FLAG_DISABLE_OVERLAY 0x1000
-
-#define OMAPFB_EVENT_READY 1
-#define OMAPFB_EVENT_DISABLED 2
-
-#define OMAPFB_MEMTYPE_SDRAM 0
-#define OMAPFB_MEMTYPE_SRAM 1
-#define OMAPFB_MEMTYPE_MAX 1
-
-enum omapfb_color_format {
- OMAPFB_COLOR_RGB565 = 0,
- OMAPFB_COLOR_YUV422,
- OMAPFB_COLOR_YUV420,
- OMAPFB_COLOR_CLUT_8BPP,
- OMAPFB_COLOR_CLUT_4BPP,
- OMAPFB_COLOR_CLUT_2BPP,
- OMAPFB_COLOR_CLUT_1BPP,
- OMAPFB_COLOR_RGB444,
- OMAPFB_COLOR_YUY422,
-};
-
-struct omapfb_update_window {
- __u32 x, y;
- __u32 width, height;
- __u32 format;
- __u32 out_x, out_y;
- __u32 out_width, out_height;
- __u32 reserved[8];
-};
-
-struct omapfb_update_window_old {
- __u32 x, y;
- __u32 width, height;
- __u32 format;
-};
-
-enum omapfb_plane {
- OMAPFB_PLANE_GFX = 0,
- OMAPFB_PLANE_VID1,
- OMAPFB_PLANE_VID2,
-};
-
-enum omapfb_channel_out {
- OMAPFB_CHANNEL_OUT_LCD = 0,
- OMAPFB_CHANNEL_OUT_DIGIT,
-};
-
-struct omapfb_plane_info {
- __u32 pos_x;
- __u32 pos_y;
- __u8 enabled;
- __u8 channel_out;
- __u8 mirror;
- __u8 reserved1;
- __u32 out_width;
- __u32 out_height;
- __u32 reserved2[12];
-};
-
-struct omapfb_mem_info {
- __u32 size;
- __u8 type;
- __u8 reserved[3];
-};
-
-struct omapfb_caps {
- __u32 ctrl;
- __u32 plane_color;
- __u32 wnd_color;
-};
-
-enum omapfb_color_key_type {
- OMAPFB_COLOR_KEY_DISABLED = 0,
- OMAPFB_COLOR_KEY_GFX_DST,
- OMAPFB_COLOR_KEY_VID_SRC,
-};
-
-struct omapfb_color_key {
- __u8 channel_out;
- __u32 background;
- __u32 trans_key;
- __u8 key_type;
-};
-
-enum omapfb_update_mode {
- OMAPFB_UPDATE_DISABLED = 0,
- OMAPFB_AUTO_UPDATE,
- OMAPFB_MANUAL_UPDATE
-};
-
-#ifdef __KERNEL__
-
-#include <linux/completion.h>
-#include <linux/interrupt.h>
-#include <linux/fb.h>
-#include <linux/mutex.h>
-
-#include <plat/board.h>
-
-#define OMAP_LCDC_INV_VSYNC 0x0001
-#define OMAP_LCDC_INV_HSYNC 0x0002
-#define OMAP_LCDC_INV_PIX_CLOCK 0x0004
-#define OMAP_LCDC_INV_OUTPUT_EN 0x0008
-#define OMAP_LCDC_HSVS_RISING_EDGE 0x0010
-#define OMAP_LCDC_HSVS_OPPOSITE 0x0020
-
-#define OMAP_LCDC_SIGNAL_MASK 0x003f
-
-#define OMAP_LCDC_PANEL_TFT 0x0100
-
-#define OMAPFB_PLANE_XRES_MIN 8
-#define OMAPFB_PLANE_YRES_MIN 8
-
-#ifdef CONFIG_ARCH_OMAP1
-#define OMAPFB_PLANE_NUM 1
-#else
-#define OMAPFB_PLANE_NUM 3
-#endif
-
-struct omapfb_device;
-
-struct lcd_panel {
- const char *name;
- int config; /* TFT/STN, signal inversion */
- int bpp; /* Pixel format in fb mem */
- int data_lines; /* Lines on LCD HW interface */
-
- int x_res, y_res;
- int pixel_clock; /* In kHz */
- int hsw; /* Horizontal synchronization
- pulse width */
- int hfp; /* Horizontal front porch */
- int hbp; /* Horizontal back porch */
- int vsw; /* Vertical synchronization
- pulse width */
- int vfp; /* Vertical front porch */
- int vbp; /* Vertical back porch */
- int acb; /* ac-bias pin frequency */
- int pcd; /* pixel clock divider.
- Obsolete use pixel_clock instead */
-
- int (*init) (struct lcd_panel *panel,
- struct omapfb_device *fbdev);
- void (*cleanup) (struct lcd_panel *panel);
- int (*enable) (struct lcd_panel *panel);
- void (*disable) (struct lcd_panel *panel);
- unsigned long (*get_caps) (struct lcd_panel *panel);
- int (*set_bklight_level)(struct lcd_panel *panel,
- unsigned int level);
- unsigned int (*get_bklight_level)(struct lcd_panel *panel);
- unsigned int (*get_bklight_max) (struct lcd_panel *panel);
- int (*run_test) (struct lcd_panel *panel, int test_num);
-};
-
-struct extif_timings {
- int cs_on_time;
- int cs_off_time;
- int we_on_time;
- int we_off_time;
- int re_on_time;
- int re_off_time;
- int we_cycle_time;
- int re_cycle_time;
- int cs_pulse_width;
- int access_time;
-
- int clk_div;
-
- u32 tim[5]; /* set by extif->convert_timings */
-
- int converted;
-};
-
-struct lcd_ctrl_extif {
- int (*init) (struct omapfb_device *fbdev);
- void (*cleanup) (void);
- void (*get_clk_info) (u32 *clk_period, u32 *max_clk_div);
- unsigned long (*get_max_tx_rate)(void);
- int (*convert_timings) (struct extif_timings *timings);
- void (*set_timings) (const struct extif_timings *timings);
- void (*set_bits_per_cycle)(int bpc);
- void (*write_command) (const void *buf, unsigned int len);
- void (*read_data) (void *buf, unsigned int len);
- void (*write_data) (const void *buf, unsigned int len);
- void (*transfer_area) (int width, int height,
- void (callback)(void * data), void *data);
- int (*setup_tearsync) (unsigned pin_cnt,
- unsigned hs_pulse_time, unsigned vs_pulse_time,
- int hs_pol_inv, int vs_pol_inv, int div);
- int (*enable_tearsync) (int enable, unsigned line);
-
- unsigned long max_transmit_size;
-};
-
-struct omapfb_notifier_block {
- struct notifier_block nb;
- void *data;
- int plane_idx;
-};
-
-typedef int (*omapfb_notifier_callback_t)(struct notifier_block *,
- unsigned long event,
- void *fbi);
-
-struct omapfb_mem_region {
- u32 paddr;
- void __iomem *vaddr;
- unsigned long size;
- u8 type; /* OMAPFB_PLANE_MEM_* */
- unsigned alloc:1; /* allocated by the driver */
- unsigned map:1; /* kernel mapped by the driver */
-};
-
-struct omapfb_mem_desc {
- int region_cnt;
- struct omapfb_mem_region region[OMAPFB_PLANE_NUM];
-};
-
-struct lcd_ctrl {
- const char *name;
- void *data;
-
- int (*init) (struct omapfb_device *fbdev,
- int ext_mode,
- struct omapfb_mem_desc *req_md);
- void (*cleanup) (void);
- void (*bind_client) (struct omapfb_notifier_block *nb);
- void (*get_caps) (int plane, struct omapfb_caps *caps);
- int (*set_update_mode)(enum omapfb_update_mode mode);
- enum omapfb_update_mode (*get_update_mode)(void);
- int (*setup_plane) (int plane, int channel_out,
- unsigned long offset,
- int screen_width,
- int pos_x, int pos_y, int width,
- int height, int color_mode);
- int (*set_rotate) (int angle);
- int (*setup_mem) (int plane, size_t size,
- int mem_type, unsigned long *paddr);
- int (*mmap) (struct fb_info *info,
- struct vm_area_struct *vma);
- int (*set_scale) (int plane,
- int orig_width, int orig_height,
- int out_width, int out_height);
- int (*enable_plane) (int plane, int enable);
- int (*update_window) (struct fb_info *fbi,
- struct omapfb_update_window *win,
- void (*callback)(void *),
- void *callback_data);
- void (*sync) (void);
- void (*suspend) (void);
- void (*resume) (void);
- int (*run_test) (int test_num);
- int (*setcolreg) (u_int regno, u16 red, u16 green,
- u16 blue, u16 transp,
- int update_hw_mem);
- int (*set_color_key) (struct omapfb_color_key *ck);
- int (*get_color_key) (struct omapfb_color_key *ck);
-};
-
-enum omapfb_state {
- OMAPFB_DISABLED = 0,
- OMAPFB_SUSPENDED= 99,
- OMAPFB_ACTIVE = 100
-};
-
-struct omapfb_plane_struct {
- int idx;
- struct omapfb_plane_info info;
- enum omapfb_color_format color_mode;
- struct omapfb_device *fbdev;
-};
-
-struct omapfb_device {
- int state;
- int ext_lcdc; /* Using external
- LCD controller */
- struct mutex rqueue_mutex;
-
- int palette_size;
- u32 pseudo_palette[17];
-
- struct lcd_panel *panel; /* LCD panel */
- const struct lcd_ctrl *ctrl; /* LCD controller */
- const struct lcd_ctrl *int_ctrl; /* internal LCD ctrl */
- struct lcd_ctrl_extif *ext_if; /* LCD ctrl external
- interface */
- struct device *dev;
- struct fb_var_screeninfo new_var; /* for mode changes */
-
- struct omapfb_mem_desc mem_desc;
- struct fb_info *fb_info[OMAPFB_PLANE_NUM];
-};
-
-struct omapfb_platform_data {
- struct omap_lcd_config lcd;
- struct omapfb_mem_desc mem_desc;
- void *ctrl_platform_data;
-};
-
-#ifdef CONFIG_ARCH_OMAP1
-extern struct lcd_ctrl omap1_lcd_ctrl;
-#else
-extern struct lcd_ctrl omap2_disp_ctrl;
-#endif
-
-extern void omapfb_reserve_sdram(void);
-extern void omapfb_register_panel(struct lcd_panel *panel);
-extern void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval);
-extern void omapfb_notify_clients(struct omapfb_device *fbdev,
- unsigned long event);
-extern int omapfb_register_client(struct omapfb_notifier_block *nb,
- omapfb_notifier_callback_t callback,
- void *callback_data);
-extern int omapfb_unregister_client(struct omapfb_notifier_block *nb);
-extern int omapfb_update_window_async(struct fb_info *fbi,
- struct omapfb_update_window *win,
- void (*callback)(void *),
- void *callback_data);
-
-/* in arch/arm/plat-omap/fb.c */
-extern void omapfb_set_ctrl_platform_data(void *pdata);
-
-#endif /* __KERNEL__ */
-
-#endif /* __OMAPFB_H */
/* SMS register offsets - read/write with sms_{read,write}_reg() */
-#define SMS_SYSCONFIG 0x010
+#define SMS_SYSCONFIG 0x010
+#define SMS_ROT_CONTROL(context) (0x180 + 0x10 * context)
+#define SMS_ROT_SIZE(context) (0x184 + 0x10 * context)
+#define SMS_ROT_PHYSICAL_BA(context) (0x188 + 0x10 * context)
/* REVISIT: fill in other SMS registers here */
void omap2_sms_save_context(void);
void omap2_sms_restore_context(void);
+void omap2_sms_write_rot_control(u32 val, unsigned ctx);
+void omap2_sms_write_rot_size(u32 val, unsigned ctx);
+void omap2_sms_write_rot_physical_ba(u32 val, unsigned ctx);
+
#ifdef CONFIG_ARCH_OMAP2
struct memory_timings {
--- /dev/null
+/*
+ * VRAM manager for OMAP
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __OMAP_VRAM_H__
+#define __OMAP_VRAM_H__
+
+#include <linux/types.h>
+
+#define OMAP_VRAM_MEMTYPE_SDRAM 0
+#define OMAP_VRAM_MEMTYPE_SRAM 1
+#define OMAP_VRAM_MEMTYPE_MAX 1
+
+extern int omap_vram_add_region(unsigned long paddr, size_t size);
+extern int omap_vram_free(unsigned long paddr, size_t size);
+extern int omap_vram_alloc(int mtype, size_t size, unsigned long *paddr);
+extern int omap_vram_reserve(unsigned long paddr, size_t size);
+extern void omap_vram_get_info(unsigned long *vram, unsigned long *free_vram,
+ unsigned long *largest_free_block);
+
+#ifdef CONFIG_OMAP2_VRAM
+extern void omap_vram_set_sdram_vram(u32 size, u32 start);
+extern void omap_vram_set_sram_vram(u32 size, u32 start);
+
+extern void omap_vram_reserve_sdram(void);
+extern unsigned long omap_vram_reserve_sram(unsigned long sram_pstart,
+ unsigned long sram_vstart,
+ unsigned long sram_size,
+ unsigned long pstart_avail,
+ unsigned long size_avail);
+#else
+static inline void omap_vram_set_sdram_vram(u32 size, u32 start) { }
+static inline void omap_vram_set_sram_vram(u32 size, u32 start) { }
+
+static inline void omap_vram_reserve_sdram(void) { }
+static inline unsigned long omap_vram_reserve_sram(unsigned long sram_pstart,
+ unsigned long sram_vstart,
+ unsigned long sram_size,
+ unsigned long pstart_avail,
+ unsigned long size_avail)
+{
+ return 0;
+}
+#endif
+
+#endif
--- /dev/null
+/*
+ * VRFB Rotation Engine
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __OMAP_VRFB_H__
+#define __OMAP_VRFB_H__
+
+#define OMAP_VRFB_LINE_LEN 2048
+
+struct vrfb {
+ u8 context;
+ void __iomem *vaddr[4];
+ unsigned long paddr[4];
+ u16 xres;
+ u16 yres;
+ u16 xoffset;
+ u16 yoffset;
+ u8 bytespp;
+ bool yuv_mode;
+};
+
+extern int omap_vrfb_request_ctx(struct vrfb *vrfb);
+extern void omap_vrfb_release_ctx(struct vrfb *vrfb);
+extern void omap_vrfb_adjust_size(u16 *width, u16 *height,
+ u8 bytespp);
+extern u32 omap_vrfb_min_phys_size(u16 width, u16 height, u8 bytespp);
+extern u16 omap_vrfb_max_height(u32 phys_size, u16 width, u8 bytespp);
+extern void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr,
+ u16 width, u16 height,
+ unsigned bytespp, bool yuv_mode);
+extern int omap_vrfb_map_angle(struct vrfb *vrfb, u16 height, u8 rot);
+extern void omap_vrfb_restore_context(void);
+
+#endif /* __VRFB_H */
#include <plat/sram.h>
#include <plat/board.h>
#include <plat/cpu.h>
+#include <plat/vram.h>
#include <plat/control.h>
omap_sram_start + SRAM_BOOTLOADER_SZ,
omap_sram_size - SRAM_BOOTLOADER_SZ);
omap_sram_size -= reserved;
+
+ reserved = omap_vram_reserve_sram(omap_sram_start, omap_sram_base,
+ omap_sram_size,
+ omap_sram_start + SRAM_BOOTLOADER_SZ,
+ omap_sram_size - SRAM_BOOTLOADER_SZ);
+ omap_sram_size -= reserved;
+
omap_sram_ceil = omap_sram_base + omap_sram_size;
}
a bridge adapter.
source "drivers/video/omap/Kconfig"
+source "drivers/video/omap2/Kconfig"
source "drivers/video/backlight/Kconfig"
source "drivers/video/display/Kconfig"
obj-$(CONFIG_FB_XILINX) += xilinxfb.o
obj-$(CONFIG_FB_SH_MOBILE_LCDC) += sh_mobile_lcdcfb.o
obj-$(CONFIG_FB_OMAP) += omap/
+obj-y += omap2/
obj-$(CONFIG_XEN_FBDEV_FRONTEND) += xen-fbfront.o
obj-$(CONFIG_FB_CARMINE) += carminefb.o
obj-$(CONFIG_FB_MB862XX) += mb862xx/
config FB_OMAP
tristate "OMAP frame buffer support (EXPERIMENTAL)"
- depends on FB && ARCH_OMAP
+ depends on FB && ARCH_OMAP && (OMAP2_DSS = "n")
+
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
config FB_OMAP_BOOTLOADER_INIT
bool "Check bootloader initialization"
- depends on FB_OMAP
+ depends on FB_OMAP || FB_OMAP2
help
Say Y here if you want to enable checking if the bootloader has
already initialized the display controller. In this case the
#include <linux/clk.h>
#include <plat/dma.h>
-#include <plat/omapfb.h>
#include <plat/blizzard.h>
+#include "omapfb.h"
#include "dispc.h"
#define MODULE_NAME "blizzard"
#include <linux/vmalloc.h>
#include <linux/clk.h>
#include <linux/io.h>
+#include <linux/platform_device.h>
#include <plat/sram.h>
-#include <plat/omapfb.h>
#include <plat/board.h>
+#include "omapfb.h"
#include "dispc.h"
#define MODULE_NAME "dispc"
struct omapfb_color_key color_key;
} dispc;
+static struct platform_device omapdss_device = {
+ .name = "omapdss",
+ .id = -1,
+};
+
static void enable_lcd_clocks(int enable);
static void inline dispc_write_reg(int idx, u32 val)
static int get_dss_clocks(void)
{
- dispc.dss_ick = clk_get(dispc.fbdev->dev, "ick");
+ dispc.dss_ick = clk_get(&omapdss_device.dev, "ick");
if (IS_ERR(dispc.dss_ick)) {
dev_err(dispc.fbdev->dev, "can't get ick\n");
return PTR_ERR(dispc.dss_ick);
}
- dispc.dss1_fck = clk_get(dispc.fbdev->dev, "dss1_fck");
+ dispc.dss1_fck = clk_get(&omapdss_device.dev, "dss1_fck");
if (IS_ERR(dispc.dss1_fck)) {
dev_err(dispc.fbdev->dev, "can't get dss1_fck\n");
clk_put(dispc.dss_ick);
return PTR_ERR(dispc.dss1_fck);
}
- dispc.dss_54m_fck = clk_get(dispc.fbdev->dev, "tv_fck");
+ dispc.dss_54m_fck = clk_get(&omapdss_device.dev, "tv_fck");
if (IS_ERR(dispc.dss_54m_fck)) {
dev_err(dispc.fbdev->dev, "can't get tv_fck\n");
clk_put(dispc.dss_ick);
int skip_init = 0;
int i;
+ r = platform_device_register(&omapdss_device);
+ if (r) {
+ dev_err(fbdev->dev, "can't register omapdss device\n");
+ return r;
+ }
+
memset(&dispc, 0, sizeof(dispc));
dispc.base = ioremap(DISPC_BASE, SZ_1K);
free_irq(INT_24XX_DSS_IRQ, dispc.fbdev);
put_dss_clocks();
iounmap(dispc.base);
+ platform_device_unregister(&omapdss_device);
}
const struct lcd_ctrl omap2_int_ctrl = {
#include <linux/fb.h>
#include <linux/delay.h>
#include <linux/clk.h>
+#include <linux/interrupt.h>
#include <plat/dma.h>
-#include <plat/omapfb.h>
#include <plat/hwa742.h>
+#include "omapfb.h"
#define HWA742_REV_CODE_REG 0x0
#define HWA742_CONFIG_REG 0x2
#include <linux/i2c/twl4030.h>
#include <plat/mux.h>
-#include <plat/omapfb.h>
#include <asm/mach-types.h>
+#include "omapfb.h"
+
#define SDP2430_LCD_PANEL_BACKLIGHT_GPIO 91
#define SDP2430_LCD_PANEL_ENABLE_GPIO 154
#define SDP3430_LCD_PANEL_BACKLIGHT_GPIO 24
#include <plat/board-ams-delta.h>
#include <mach/hardware.h>
-#include <plat/omapfb.h>
+
+#include "omapfb.h"
#define AMS_DELTA_DEFAULT_CONTRAST 112
#include <mach/gpio.h>
#include <plat/mux.h>
-#include <plat/omapfb.h>
+
+#include "omapfb.h"
/* #define USE_35INCH_LCD 1 */
#include <linux/i2c/tps65010.h>
#include <mach/gpio.h>
-#include <plat/omapfb.h>
+#include "omapfb.h"
#define MODULE_NAME "omapfb-lcd_h3"
#include <linux/module.h>
#include <linux/platform_device.h>
-#include <plat/omapfb.h>
+#include "omapfb.h"
static int h4_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev)
{
#include <linux/module.h>
#include <linux/platform_device.h>
-#include <plat/omapfb.h>
+#include "omapfb.h"
static int htcherald_panel_init(struct lcd_panel *panel,
struct omapfb_device *fbdev)
#include <linux/io.h>
#include <plat/fpga.h>
-#include <plat/omapfb.h>
+#include "omapfb.h"
static int innovator1510_panel_init(struct lcd_panel *panel,
struct omapfb_device *fbdev)
#include <linux/platform_device.h>
#include <mach/gpio.h>
-#include <plat/omapfb.h>
+#include "omapfb.h"
#define MODULE_NAME "omapfb-lcd_h3"
#include <mach/gpio.h>
#include <plat/mux.h>
-#include <plat/omapfb.h>
#include <asm/mach-types.h>
+#include "omapfb.h"
+
#define LCD_PANEL_BACKLIGHT_GPIO (15 + OMAP_MAX_GPIO_LINES)
#define LCD_PANEL_ENABLE_GPIO (7 + OMAP_MAX_GPIO_LINES)
#include <linux/workqueue.h>
#include <linux/spi/spi.h>
-#include <plat/omapfb.h>
#include <plat/lcd_mipid.h>
+#include "omapfb.h"
+
#define MIPID_MODULE_NAME "lcd_mipid"
#define MIPID_CMD_READ_DISP_ID 0x04
#include <linux/i2c/twl4030.h>
#include <plat/mux.h>
-#include <plat/omapfb.h>
#include <asm/mach-types.h>
+#include "omapfb.h"
+
#define LCD_PANEL_ENABLE_GPIO 154
#define LCD_PANEL_LR 128
#define LCD_PANEL_UD 129
#include <linux/i2c/twl4030.h>
#include <plat/mux.h>
-#include <plat/omapfb.h>
+#include <plat/mux.h>
#include <asm/mach-types.h>
+#include "omapfb.h"
+
#define LCD_PANEL_ENABLE_GPIO 170
static int omap3beagle_panel_init(struct lcd_panel *panel,
#include <linux/i2c/twl4030.h>
#include <plat/mux.h>
-#include <plat/omapfb.h>
#include <asm/mach-types.h>
+#include "omapfb.h"
+
#define LCD_PANEL_ENABLE_GPIO 153
#define LCD_PANEL_LR 2
#define LCD_PANEL_UD 3
#include <mach/gpio.h>
#include <plat/mux.h>
-#include <plat/omapfb.h>
+#include "omapfb.h"
static int osk_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev)
{
#include <mach/gpio.h>
#include <plat/mux.h>
-#include <plat/omapfb.h>
#include <asm/mach-types.h>
+#include "omapfb.h"
+
#define LCD_ENABLE 144
static int overo_panel_init(struct lcd_panel *panel,
#include <linux/io.h>
#include <plat/fpga.h>
-#include <plat/omapfb.h>
+#include "omapfb.h"
static int palmte_panel_init(struct lcd_panel *panel,
struct omapfb_device *fbdev)
#include <linux/io.h>
#include <mach/gpio.h>
-#include <plat/omapfb.h>
+#include "omapfb.h"
static int palmtt_panel_init(struct lcd_panel *panel,
struct omapfb_device *fbdev)
#include <linux/platform_device.h>
#include <linux/io.h>
-#include <plat/omapfb.h>
+#include "omapfb.h"
static int palmz71_panel_init(struct lcd_panel *panel,
struct omapfb_device *fbdev)
#include <linux/clk.h>
#include <plat/dma.h>
-#include <plat/omapfb.h>
#include <asm/mach-types.h>
+#include "omapfb.h"
+
#include "lcdc.h"
#define MODULE_NAME "lcdc"
--- /dev/null
+/*
+ * File: drivers/video/omap/omapfb.h
+ *
+ * Framebuffer driver for TI OMAP boards
+ *
+ * Copyright (C) 2004 Nokia Corporation
+ * Author: Imre Deak <imre.deak@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __OMAPFB_H
+#define __OMAPFB_H
+
+#include <linux/fb.h>
+#include <linux/mutex.h>
+#include <linux/omapfb.h>
+
+#define OMAPFB_EVENT_READY 1
+#define OMAPFB_EVENT_DISABLED 2
+
+#define OMAP_LCDC_INV_VSYNC 0x0001
+#define OMAP_LCDC_INV_HSYNC 0x0002
+#define OMAP_LCDC_INV_PIX_CLOCK 0x0004
+#define OMAP_LCDC_INV_OUTPUT_EN 0x0008
+#define OMAP_LCDC_HSVS_RISING_EDGE 0x0010
+#define OMAP_LCDC_HSVS_OPPOSITE 0x0020
+
+#define OMAP_LCDC_SIGNAL_MASK 0x003f
+
+#define OMAP_LCDC_PANEL_TFT 0x0100
+
+#define OMAPFB_PLANE_XRES_MIN 8
+#define OMAPFB_PLANE_YRES_MIN 8
+
+struct omapfb_device;
+
+struct lcd_panel {
+ const char *name;
+ int config; /* TFT/STN, signal inversion */
+ int bpp; /* Pixel format in fb mem */
+ int data_lines; /* Lines on LCD HW interface */
+
+ int x_res, y_res;
+ int pixel_clock; /* In kHz */
+ int hsw; /* Horizontal synchronization
+ pulse width */
+ int hfp; /* Horizontal front porch */
+ int hbp; /* Horizontal back porch */
+ int vsw; /* Vertical synchronization
+ pulse width */
+ int vfp; /* Vertical front porch */
+ int vbp; /* Vertical back porch */
+ int acb; /* ac-bias pin frequency */
+ int pcd; /* pixel clock divider.
+ Obsolete use pixel_clock instead */
+
+ int (*init) (struct lcd_panel *panel,
+ struct omapfb_device *fbdev);
+ void (*cleanup) (struct lcd_panel *panel);
+ int (*enable) (struct lcd_panel *panel);
+ void (*disable) (struct lcd_panel *panel);
+ unsigned long (*get_caps) (struct lcd_panel *panel);
+ int (*set_bklight_level)(struct lcd_panel *panel,
+ unsigned int level);
+ unsigned int (*get_bklight_level)(struct lcd_panel *panel);
+ unsigned int (*get_bklight_max) (struct lcd_panel *panel);
+ int (*run_test) (struct lcd_panel *panel, int test_num);
+};
+
+struct extif_timings {
+ int cs_on_time;
+ int cs_off_time;
+ int we_on_time;
+ int we_off_time;
+ int re_on_time;
+ int re_off_time;
+ int we_cycle_time;
+ int re_cycle_time;
+ int cs_pulse_width;
+ int access_time;
+
+ int clk_div;
+
+ u32 tim[5]; /* set by extif->convert_timings */
+
+ int converted;
+};
+
+struct lcd_ctrl_extif {
+ int (*init) (struct omapfb_device *fbdev);
+ void (*cleanup) (void);
+ void (*get_clk_info) (u32 *clk_period, u32 *max_clk_div);
+ unsigned long (*get_max_tx_rate)(void);
+ int (*convert_timings) (struct extif_timings *timings);
+ void (*set_timings) (const struct extif_timings *timings);
+ void (*set_bits_per_cycle)(int bpc);
+ void (*write_command) (const void *buf, unsigned int len);
+ void (*read_data) (void *buf, unsigned int len);
+ void (*write_data) (const void *buf, unsigned int len);
+ void (*transfer_area) (int width, int height,
+ void (callback)(void *data), void *data);
+ int (*setup_tearsync) (unsigned pin_cnt,
+ unsigned hs_pulse_time, unsigned vs_pulse_time,
+ int hs_pol_inv, int vs_pol_inv, int div);
+ int (*enable_tearsync) (int enable, unsigned line);
+
+ unsigned long max_transmit_size;
+};
+
+struct omapfb_notifier_block {
+ struct notifier_block nb;
+ void *data;
+ int plane_idx;
+};
+
+typedef int (*omapfb_notifier_callback_t)(struct notifier_block *,
+ unsigned long event,
+ void *fbi);
+
+struct lcd_ctrl {
+ const char *name;
+ void *data;
+
+ int (*init) (struct omapfb_device *fbdev,
+ int ext_mode,
+ struct omapfb_mem_desc *req_md);
+ void (*cleanup) (void);
+ void (*bind_client) (struct omapfb_notifier_block *nb);
+ void (*get_caps) (int plane, struct omapfb_caps *caps);
+ int (*set_update_mode)(enum omapfb_update_mode mode);
+ enum omapfb_update_mode (*get_update_mode)(void);
+ int (*setup_plane) (int plane, int channel_out,
+ unsigned long offset,
+ int screen_width,
+ int pos_x, int pos_y, int width,
+ int height, int color_mode);
+ int (*set_rotate) (int angle);
+ int (*setup_mem) (int plane, size_t size,
+ int mem_type, unsigned long *paddr);
+ int (*mmap) (struct fb_info *info,
+ struct vm_area_struct *vma);
+ int (*set_scale) (int plane,
+ int orig_width, int orig_height,
+ int out_width, int out_height);
+ int (*enable_plane) (int plane, int enable);
+ int (*update_window) (struct fb_info *fbi,
+ struct omapfb_update_window *win,
+ void (*callback)(void *),
+ void *callback_data);
+ void (*sync) (void);
+ void (*suspend) (void);
+ void (*resume) (void);
+ int (*run_test) (int test_num);
+ int (*setcolreg) (u_int regno, u16 red, u16 green,
+ u16 blue, u16 transp,
+ int update_hw_mem);
+ int (*set_color_key) (struct omapfb_color_key *ck);
+ int (*get_color_key) (struct omapfb_color_key *ck);
+};
+
+enum omapfb_state {
+ OMAPFB_DISABLED = 0,
+ OMAPFB_SUSPENDED = 99,
+ OMAPFB_ACTIVE = 100
+};
+
+struct omapfb_plane_struct {
+ int idx;
+ struct omapfb_plane_info info;
+ enum omapfb_color_format color_mode;
+ struct omapfb_device *fbdev;
+};
+
+struct omapfb_device {
+ int state;
+ int ext_lcdc; /* Using external
+ LCD controller */
+ struct mutex rqueue_mutex;
+
+ int palette_size;
+ u32 pseudo_palette[17];
+
+ struct lcd_panel *panel; /* LCD panel */
+ const struct lcd_ctrl *ctrl; /* LCD controller */
+ const struct lcd_ctrl *int_ctrl; /* internal LCD ctrl */
+ struct lcd_ctrl_extif *ext_if; /* LCD ctrl external
+ interface */
+ struct device *dev;
+ struct fb_var_screeninfo new_var; /* for mode changes */
+
+ struct omapfb_mem_desc mem_desc;
+ struct fb_info *fb_info[OMAPFB_PLANE_NUM];
+};
+
+#ifdef CONFIG_ARCH_OMAP1
+extern struct lcd_ctrl omap1_lcd_ctrl;
+#else
+extern struct lcd_ctrl omap2_disp_ctrl;
+#endif
+
+extern void omapfb_register_panel(struct lcd_panel *panel);
+extern void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval);
+extern void omapfb_notify_clients(struct omapfb_device *fbdev,
+ unsigned long event);
+extern int omapfb_register_client(struct omapfb_notifier_block *nb,
+ omapfb_notifier_callback_t callback,
+ void *callback_data);
+extern int omapfb_unregister_client(struct omapfb_notifier_block *nb);
+extern int omapfb_update_window_async(struct fb_info *fbi,
+ struct omapfb_update_window *win,
+ void (*callback)(void *),
+ void *callback_data);
+
+#endif /* __OMAPFB_H */
#include <linux/uaccess.h>
#include <plat/dma.h>
-#include <plat/omapfb.h>
+#include "omapfb.h"
#include "lcdc.h"
#include "dispc.h"
#include <linux/clk.h>
#include <linux/io.h>
-#include <plat/omapfb.h>
-
+#include "omapfb.h"
#include "dispc.h"
/* To work around an RFBI transfer rate limitation */
#include <linux/clk.h>
#include <linux/irq.h>
#include <linux/io.h>
+#include <linux/interrupt.h>
#include <plat/dma.h>
-#include <plat/omapfb.h>
+#include "omapfb.h"
#include "lcdc.h"
#define MODULE_NAME "omapfb-sossi"
--- /dev/null
+config OMAP2_VRAM
+ bool
+
+config OMAP2_VRFB
+ bool
+
+source "drivers/video/omap2/dss/Kconfig"
+source "drivers/video/omap2/omapfb/Kconfig"
+source "drivers/video/omap2/displays/Kconfig"
--- /dev/null
+obj-$(CONFIG_OMAP2_VRAM) += vram.o
+obj-$(CONFIG_OMAP2_VRFB) += vrfb.o
+
+obj-y += dss/
+obj-y += omapfb/
+obj-y += displays/
--- /dev/null
+menu "OMAP2/3 Display Device Drivers"
+ depends on OMAP2_DSS
+
+config PANEL_GENERIC
+ tristate "Generic Panel"
+ help
+ Generic panel driver.
+ Used for DVI output for Beagle and OMAP3 SDP.
+
+config PANEL_SHARP_LS037V7DW01
+ tristate "Sharp LS037V7DW01 LCD Panel"
+ depends on OMAP2_DSS
+ help
+ LCD Panel used in TI's SDP3430 and EVM boards
+
+config PANEL_TAAL
+ tristate "Taal DSI Panel"
+ depends on OMAP2_DSS_DSI
+ help
+ Taal DSI command mode panel from TPO.
+
+endmenu
--- /dev/null
+obj-$(CONFIG_PANEL_GENERIC) += panel-generic.o
+obj-$(CONFIG_PANEL_SHARP_LS037V7DW01) += panel-sharp-ls037v7dw01.o
+
+obj-$(CONFIG_PANEL_TAAL) += panel-taal.o
--- /dev/null
+/*
+ * Generic panel support
+ *
+ * Copyright (C) 2008 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+
+#include <plat/display.h>
+
+static struct omap_video_timings generic_panel_timings = {
+ /* 640 x 480 @ 60 Hz Reduced blanking VESA CVT 0.31M3-R */
+ .x_res = 640,
+ .y_res = 480,
+ .pixel_clock = 23500,
+ .hfp = 48,
+ .hsw = 32,
+ .hbp = 80,
+ .vfp = 3,
+ .vsw = 4,
+ .vbp = 7,
+};
+
+static int generic_panel_probe(struct omap_dss_device *dssdev)
+{
+ dssdev->panel.config = OMAP_DSS_LCD_TFT;
+ dssdev->panel.timings = generic_panel_timings;
+
+ return 0;
+}
+
+static void generic_panel_remove(struct omap_dss_device *dssdev)
+{
+}
+
+static int generic_panel_enable(struct omap_dss_device *dssdev)
+{
+ int r = 0;
+
+ if (dssdev->platform_enable)
+ r = dssdev->platform_enable(dssdev);
+
+ return r;
+}
+
+static void generic_panel_disable(struct omap_dss_device *dssdev)
+{
+ if (dssdev->platform_disable)
+ dssdev->platform_disable(dssdev);
+}
+
+static int generic_panel_suspend(struct omap_dss_device *dssdev)
+{
+ generic_panel_disable(dssdev);
+ return 0;
+}
+
+static int generic_panel_resume(struct omap_dss_device *dssdev)
+{
+ return generic_panel_enable(dssdev);
+}
+
+static struct omap_dss_driver generic_driver = {
+ .probe = generic_panel_probe,
+ .remove = generic_panel_remove,
+
+ .enable = generic_panel_enable,
+ .disable = generic_panel_disable,
+ .suspend = generic_panel_suspend,
+ .resume = generic_panel_resume,
+
+ .driver = {
+ .name = "generic_panel",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init generic_panel_drv_init(void)
+{
+ return omap_dss_register_driver(&generic_driver);
+}
+
+static void __exit generic_panel_drv_exit(void)
+{
+ omap_dss_unregister_driver(&generic_driver);
+}
+
+module_init(generic_panel_drv_init);
+module_exit(generic_panel_drv_exit);
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * LCD panel driver for Sharp LS037V7DW01
+ *
+ * Copyright (C) 2008 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/regulator/consumer.h>
+#include <linux/err.h>
+
+#include <plat/display.h>
+
+struct sharp_data {
+ /* XXX This regulator should actually be in SDP board file, not here,
+ * as it doesn't actually power the LCD, but something else that
+ * affects the output to LCD (I think. Somebody clarify). It doesn't do
+ * harm here, as SDP is the only board using this currently */
+ struct regulator *vdvi_reg;
+};
+
+static struct omap_video_timings sharp_ls_timings = {
+ .x_res = 480,
+ .y_res = 640,
+
+ .pixel_clock = 19200,
+
+ .hsw = 2,
+ .hfp = 1,
+ .hbp = 28,
+
+ .vsw = 1,
+ .vfp = 1,
+ .vbp = 1,
+};
+
+static int sharp_ls_panel_probe(struct omap_dss_device *dssdev)
+{
+ struct sharp_data *sd;
+
+ dssdev->panel.config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
+ OMAP_DSS_LCD_IHS;
+ dssdev->panel.acb = 0x28;
+ dssdev->panel.timings = sharp_ls_timings;
+
+ sd = kzalloc(sizeof(*sd), GFP_KERNEL);
+ if (!sd)
+ return -ENOMEM;
+
+ dev_set_drvdata(&dssdev->dev, sd);
+
+ sd->vdvi_reg = regulator_get(&dssdev->dev, "vdvi");
+ if (IS_ERR(sd->vdvi_reg)) {
+ kfree(sd);
+ pr_err("failed to get VDVI regulator\n");
+ return PTR_ERR(sd->vdvi_reg);
+ }
+
+ return 0;
+}
+
+static void sharp_ls_panel_remove(struct omap_dss_device *dssdev)
+{
+ struct sharp_data *sd = dev_get_drvdata(&dssdev->dev);
+
+ regulator_put(sd->vdvi_reg);
+
+ kfree(sd);
+}
+
+static int sharp_ls_panel_enable(struct omap_dss_device *dssdev)
+{
+ struct sharp_data *sd = dev_get_drvdata(&dssdev->dev);
+ int r = 0;
+
+ /* wait couple of vsyncs until enabling the LCD */
+ msleep(50);
+
+ regulator_enable(sd->vdvi_reg);
+
+ if (dssdev->platform_enable)
+ r = dssdev->platform_enable(dssdev);
+
+ return r;
+}
+
+static void sharp_ls_panel_disable(struct omap_dss_device *dssdev)
+{
+ struct sharp_data *sd = dev_get_drvdata(&dssdev->dev);
+
+ if (dssdev->platform_disable)
+ dssdev->platform_disable(dssdev);
+
+ regulator_disable(sd->vdvi_reg);
+
+ /* wait at least 5 vsyncs after disabling the LCD */
+
+ msleep(100);
+}
+
+static int sharp_ls_panel_suspend(struct omap_dss_device *dssdev)
+{
+ sharp_ls_panel_disable(dssdev);
+ return 0;
+}
+
+static int sharp_ls_panel_resume(struct omap_dss_device *dssdev)
+{
+ return sharp_ls_panel_enable(dssdev);
+}
+
+static struct omap_dss_driver sharp_ls_driver = {
+ .probe = sharp_ls_panel_probe,
+ .remove = sharp_ls_panel_remove,
+
+ .enable = sharp_ls_panel_enable,
+ .disable = sharp_ls_panel_disable,
+ .suspend = sharp_ls_panel_suspend,
+ .resume = sharp_ls_panel_resume,
+
+ .driver = {
+ .name = "sharp_ls_panel",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init sharp_ls_panel_drv_init(void)
+{
+ return omap_dss_register_driver(&sharp_ls_driver);
+}
+
+static void __exit sharp_ls_panel_drv_exit(void)
+{
+ omap_dss_unregister_driver(&sharp_ls_driver);
+}
+
+module_init(sharp_ls_panel_drv_init);
+module_exit(sharp_ls_panel_drv_exit);
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * Taal DSI command mode panel
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*#define DEBUG*/
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/jiffies.h>
+#include <linux/sched.h>
+#include <linux/backlight.h>
+#include <linux/fb.h>
+#include <linux/interrupt.h>
+#include <linux/gpio.h>
+#include <linux/completion.h>
+#include <linux/workqueue.h>
+
+#include <plat/display.h>
+
+/* DSI Virtual channel. Hardcoded for now. */
+#define TCH 0
+
+#define DCS_READ_NUM_ERRORS 0x05
+#define DCS_READ_POWER_MODE 0x0a
+#define DCS_READ_MADCTL 0x0b
+#define DCS_READ_PIXEL_FORMAT 0x0c
+#define DCS_RDDSDR 0x0f
+#define DCS_SLEEP_IN 0x10
+#define DCS_SLEEP_OUT 0x11
+#define DCS_DISPLAY_OFF 0x28
+#define DCS_DISPLAY_ON 0x29
+#define DCS_COLUMN_ADDR 0x2a
+#define DCS_PAGE_ADDR 0x2b
+#define DCS_MEMORY_WRITE 0x2c
+#define DCS_TEAR_OFF 0x34
+#define DCS_TEAR_ON 0x35
+#define DCS_MEM_ACC_CTRL 0x36
+#define DCS_PIXEL_FORMAT 0x3a
+#define DCS_BRIGHTNESS 0x51
+#define DCS_CTRL_DISPLAY 0x53
+#define DCS_WRITE_CABC 0x55
+#define DCS_READ_CABC 0x56
+#define DCS_GET_ID1 0xda
+#define DCS_GET_ID2 0xdb
+#define DCS_GET_ID3 0xdc
+
+/* #define TAAL_USE_ESD_CHECK */
+#define TAAL_ESD_CHECK_PERIOD msecs_to_jiffies(5000)
+
+struct taal_data {
+ struct backlight_device *bldev;
+
+ unsigned long hw_guard_end; /* next value of jiffies when we can
+ * issue the next sleep in/out command
+ */
+ unsigned long hw_guard_wait; /* max guard time in jiffies */
+
+ struct omap_dss_device *dssdev;
+
+ bool enabled;
+ u8 rotate;
+ bool mirror;
+
+ bool te_enabled;
+ bool use_ext_te;
+ struct completion te_completion;
+
+ bool use_dsi_bl;
+
+ bool cabc_broken;
+ unsigned cabc_mode;
+
+ bool intro_printed;
+
+ struct workqueue_struct *esd_wq;
+ struct delayed_work esd_work;
+};
+
+static void taal_esd_work(struct work_struct *work);
+
+static void hw_guard_start(struct taal_data *td, int guard_msec)
+{
+ td->hw_guard_wait = msecs_to_jiffies(guard_msec);
+ td->hw_guard_end = jiffies + td->hw_guard_wait;
+}
+
+static void hw_guard_wait(struct taal_data *td)
+{
+ unsigned long wait = td->hw_guard_end - jiffies;
+
+ if ((long)wait > 0 && wait <= td->hw_guard_wait) {
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(wait);
+ }
+}
+
+static int taal_dcs_read_1(u8 dcs_cmd, u8 *data)
+{
+ int r;
+ u8 buf[1];
+
+ r = dsi_vc_dcs_read(TCH, dcs_cmd, buf, 1);
+
+ if (r < 0)
+ return r;
+
+ *data = buf[0];
+
+ return 0;
+}
+
+static int taal_dcs_write_0(u8 dcs_cmd)
+{
+ return dsi_vc_dcs_write(TCH, &dcs_cmd, 1);
+}
+
+static int taal_dcs_write_1(u8 dcs_cmd, u8 param)
+{
+ u8 buf[2];
+ buf[0] = dcs_cmd;
+ buf[1] = param;
+ return dsi_vc_dcs_write(TCH, buf, 2);
+}
+
+static int taal_sleep_in(struct taal_data *td)
+
+{
+ u8 cmd;
+ int r;
+
+ hw_guard_wait(td);
+
+ cmd = DCS_SLEEP_IN;
+ r = dsi_vc_dcs_write_nosync(TCH, &cmd, 1);
+ if (r)
+ return r;
+
+ hw_guard_start(td, 120);
+
+ msleep(5);
+
+ return 0;
+}
+
+static int taal_sleep_out(struct taal_data *td)
+{
+ int r;
+
+ hw_guard_wait(td);
+
+ r = taal_dcs_write_0(DCS_SLEEP_OUT);
+ if (r)
+ return r;
+
+ hw_guard_start(td, 120);
+
+ msleep(5);
+
+ return 0;
+}
+
+static int taal_get_id(u8 *id1, u8 *id2, u8 *id3)
+{
+ int r;
+
+ r = taal_dcs_read_1(DCS_GET_ID1, id1);
+ if (r)
+ return r;
+ r = taal_dcs_read_1(DCS_GET_ID2, id2);
+ if (r)
+ return r;
+ r = taal_dcs_read_1(DCS_GET_ID3, id3);
+ if (r)
+ return r;
+
+ return 0;
+}
+
+static int taal_set_addr_mode(u8 rotate, bool mirror)
+{
+ int r;
+ u8 mode;
+ int b5, b6, b7;
+
+ r = taal_dcs_read_1(DCS_READ_MADCTL, &mode);
+ if (r)
+ return r;
+
+ switch (rotate) {
+ default:
+ case 0:
+ b7 = 0;
+ b6 = 0;
+ b5 = 0;
+ break;
+ case 1:
+ b7 = 0;
+ b6 = 1;
+ b5 = 1;
+ break;
+ case 2:
+ b7 = 1;
+ b6 = 1;
+ b5 = 0;
+ break;
+ case 3:
+ b7 = 1;
+ b6 = 0;
+ b5 = 1;
+ break;
+ }
+
+ if (mirror)
+ b6 = !b6;
+
+ mode &= ~((1<<7) | (1<<6) | (1<<5));
+ mode |= (b7 << 7) | (b6 << 6) | (b5 << 5);
+
+ return taal_dcs_write_1(DCS_MEM_ACC_CTRL, mode);
+}
+
+static int taal_set_update_window(u16 x, u16 y, u16 w, u16 h)
+{
+ int r;
+ u16 x1 = x;
+ u16 x2 = x + w - 1;
+ u16 y1 = y;
+ u16 y2 = y + h - 1;
+
+ u8 buf[5];
+ buf[0] = DCS_COLUMN_ADDR;
+ buf[1] = (x1 >> 8) & 0xff;
+ buf[2] = (x1 >> 0) & 0xff;
+ buf[3] = (x2 >> 8) & 0xff;
+ buf[4] = (x2 >> 0) & 0xff;
+
+ r = dsi_vc_dcs_write_nosync(TCH, buf, sizeof(buf));
+ if (r)
+ return r;
+
+ buf[0] = DCS_PAGE_ADDR;
+ buf[1] = (y1 >> 8) & 0xff;
+ buf[2] = (y1 >> 0) & 0xff;
+ buf[3] = (y2 >> 8) & 0xff;
+ buf[4] = (y2 >> 0) & 0xff;
+
+ r = dsi_vc_dcs_write_nosync(TCH, buf, sizeof(buf));
+ if (r)
+ return r;
+
+ dsi_vc_send_bta_sync(TCH);
+
+ return r;
+}
+
+static int taal_bl_update_status(struct backlight_device *dev)
+{
+ struct omap_dss_device *dssdev = dev_get_drvdata(&dev->dev);
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
+ int r;
+ int level;
+
+ if (dev->props.fb_blank == FB_BLANK_UNBLANK &&
+ dev->props.power == FB_BLANK_UNBLANK)
+ level = dev->props.brightness;
+ else
+ level = 0;
+
+ dev_dbg(&dssdev->dev, "update brightness to %d\n", level);
+
+ if (td->use_dsi_bl) {
+ if (td->enabled) {
+ dsi_bus_lock();
+ r = taal_dcs_write_1(DCS_BRIGHTNESS, level);
+ dsi_bus_unlock();
+ if (r)
+ return r;
+ }
+ } else {
+ if (!dssdev->set_backlight)
+ return -EINVAL;
+
+ r = dssdev->set_backlight(dssdev, level);
+ if (r)
+ return r;
+ }
+
+ return 0;
+}
+
+static int taal_bl_get_intensity(struct backlight_device *dev)
+{
+ if (dev->props.fb_blank == FB_BLANK_UNBLANK &&
+ dev->props.power == FB_BLANK_UNBLANK)
+ return dev->props.brightness;
+
+ return 0;
+}
+
+static struct backlight_ops taal_bl_ops = {
+ .get_brightness = taal_bl_get_intensity,
+ .update_status = taal_bl_update_status,
+};
+
+static void taal_get_timings(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings)
+{
+ *timings = dssdev->panel.timings;
+}
+
+static void taal_get_resolution(struct omap_dss_device *dssdev,
+ u16 *xres, u16 *yres)
+{
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
+
+ if (td->rotate == 0 || td->rotate == 2) {
+ *xres = dssdev->panel.timings.x_res;
+ *yres = dssdev->panel.timings.y_res;
+ } else {
+ *yres = dssdev->panel.timings.x_res;
+ *xres = dssdev->panel.timings.y_res;
+ }
+}
+
+static irqreturn_t taal_te_isr(int irq, void *data)
+{
+ struct omap_dss_device *dssdev = data;
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
+
+ complete_all(&td->te_completion);
+
+ return IRQ_HANDLED;
+}
+
+static ssize_t taal_num_errors_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
+ u8 errors;
+ int r;
+
+ if (td->enabled) {
+ dsi_bus_lock();
+ r = taal_dcs_read_1(DCS_READ_NUM_ERRORS, &errors);
+ dsi_bus_unlock();
+ } else {
+ r = -ENODEV;
+ }
+
+ if (r)
+ return r;
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", errors);
+}
+
+static ssize_t taal_hw_revision_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
+ u8 id1, id2, id3;
+ int r;
+
+ if (td->enabled) {
+ dsi_bus_lock();
+ r = taal_get_id(&id1, &id2, &id3);
+ dsi_bus_unlock();
+ } else {
+ r = -ENODEV;
+ }
+
+ if (r)
+ return r;
+
+ return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x\n", id1, id2, id3);
+}
+
+static const char *cabc_modes[] = {
+ "off", /* used also always when CABC is not supported */
+ "ui",
+ "still-image",
+ "moving-image",
+};
+
+static ssize_t show_cabc_mode(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
+ const char *mode_str;
+ int mode;
+ int len;
+
+ mode = td->cabc_mode;
+
+ mode_str = "unknown";
+ if (mode >= 0 && mode < ARRAY_SIZE(cabc_modes))
+ mode_str = cabc_modes[mode];
+ len = snprintf(buf, PAGE_SIZE, "%s\n", mode_str);
+
+ return len < PAGE_SIZE - 1 ? len : PAGE_SIZE - 1;
+}
+
+static ssize_t store_cabc_mode(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(cabc_modes); i++) {
+ if (sysfs_streq(cabc_modes[i], buf))
+ break;
+ }
+
+ if (i == ARRAY_SIZE(cabc_modes))
+ return -EINVAL;
+
+ if (td->enabled) {
+ dsi_bus_lock();
+ if (!td->cabc_broken)
+ taal_dcs_write_1(DCS_WRITE_CABC, i);
+ dsi_bus_unlock();
+ }
+
+ td->cabc_mode = i;
+
+ return count;
+}
+
+static ssize_t show_cabc_available_modes(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ int len;
+ int i;
+
+ for (i = 0, len = 0;
+ len < PAGE_SIZE && i < ARRAY_SIZE(cabc_modes); i++)
+ len += snprintf(&buf[len], PAGE_SIZE - len, "%s%s%s",
+ i ? " " : "", cabc_modes[i],
+ i == ARRAY_SIZE(cabc_modes) - 1 ? "\n" : "");
+
+ return len < PAGE_SIZE ? len : PAGE_SIZE - 1;
+}
+
+static DEVICE_ATTR(num_dsi_errors, S_IRUGO, taal_num_errors_show, NULL);
+static DEVICE_ATTR(hw_revision, S_IRUGO, taal_hw_revision_show, NULL);
+static DEVICE_ATTR(cabc_mode, S_IRUGO | S_IWUSR,
+ show_cabc_mode, store_cabc_mode);
+static DEVICE_ATTR(cabc_available_modes, S_IRUGO,
+ show_cabc_available_modes, NULL);
+
+static struct attribute *taal_attrs[] = {
+ &dev_attr_num_dsi_errors.attr,
+ &dev_attr_hw_revision.attr,
+ &dev_attr_cabc_mode.attr,
+ &dev_attr_cabc_available_modes.attr,
+ NULL,
+};
+
+static struct attribute_group taal_attr_group = {
+ .attrs = taal_attrs,
+};
+
+static int taal_probe(struct omap_dss_device *dssdev)
+{
+ struct taal_data *td;
+ struct backlight_device *bldev;
+ int r;
+
+ const struct omap_video_timings taal_panel_timings = {
+ .x_res = 864,
+ .y_res = 480,
+ };
+
+ dev_dbg(&dssdev->dev, "probe\n");
+
+ dssdev->panel.config = OMAP_DSS_LCD_TFT;
+ dssdev->panel.timings = taal_panel_timings;
+ dssdev->ctrl.pixel_size = 24;
+
+ td = kzalloc(sizeof(*td), GFP_KERNEL);
+ if (!td) {
+ r = -ENOMEM;
+ goto err0;
+ }
+ td->dssdev = dssdev;
+
+ td->esd_wq = create_singlethread_workqueue("taal_esd");
+ if (td->esd_wq == NULL) {
+ dev_err(&dssdev->dev, "can't create ESD workqueue\n");
+ r = -ENOMEM;
+ goto err2;
+ }
+ INIT_DELAYED_WORK_DEFERRABLE(&td->esd_work, taal_esd_work);
+
+ dev_set_drvdata(&dssdev->dev, td);
+
+ dssdev->get_timings = taal_get_timings;
+ dssdev->get_resolution = taal_get_resolution;
+
+ /* if no platform set_backlight() defined, presume DSI backlight
+ * control */
+ if (!dssdev->set_backlight)
+ td->use_dsi_bl = true;
+
+ bldev = backlight_device_register("taal", &dssdev->dev, dssdev,
+ &taal_bl_ops);
+ if (IS_ERR(bldev)) {
+ r = PTR_ERR(bldev);
+ goto err1;
+ }
+
+ td->bldev = bldev;
+
+ bldev->props.fb_blank = FB_BLANK_UNBLANK;
+ bldev->props.power = FB_BLANK_UNBLANK;
+ if (td->use_dsi_bl) {
+ bldev->props.max_brightness = 255;
+ bldev->props.brightness = 255;
+ } else {
+ bldev->props.max_brightness = 127;
+ bldev->props.brightness = 127;
+ }
+
+ taal_bl_update_status(bldev);
+
+ if (dssdev->phy.dsi.ext_te) {
+ int gpio = dssdev->phy.dsi.ext_te_gpio;
+
+ r = gpio_request(gpio, "taal irq");
+ if (r) {
+ dev_err(&dssdev->dev, "GPIO request failed\n");
+ goto err3;
+ }
+
+ gpio_direction_input(gpio);
+
+ r = request_irq(gpio_to_irq(gpio), taal_te_isr,
+ IRQF_DISABLED | IRQF_TRIGGER_RISING,
+ "taal vsync", dssdev);
+
+ if (r) {
+ dev_err(&dssdev->dev, "IRQ request failed\n");
+ gpio_free(gpio);
+ goto err3;
+ }
+
+ init_completion(&td->te_completion);
+
+ td->use_ext_te = true;
+ }
+
+ r = sysfs_create_group(&dssdev->dev.kobj, &taal_attr_group);
+ if (r) {
+ dev_err(&dssdev->dev, "failed to create sysfs files\n");
+ goto err4;
+ }
+
+ return 0;
+err4:
+ if (td->use_ext_te) {
+ int gpio = dssdev->phy.dsi.ext_te_gpio;
+ free_irq(gpio_to_irq(gpio), dssdev);
+ gpio_free(gpio);
+ }
+err3:
+ backlight_device_unregister(bldev);
+err2:
+ cancel_delayed_work_sync(&td->esd_work);
+ destroy_workqueue(td->esd_wq);
+err1:
+ kfree(td);
+err0:
+ return r;
+}
+
+static void taal_remove(struct omap_dss_device *dssdev)
+{
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
+ struct backlight_device *bldev;
+
+ dev_dbg(&dssdev->dev, "remove\n");
+
+ sysfs_remove_group(&dssdev->dev.kobj, &taal_attr_group);
+
+ if (td->use_ext_te) {
+ int gpio = dssdev->phy.dsi.ext_te_gpio;
+ free_irq(gpio_to_irq(gpio), dssdev);
+ gpio_free(gpio);
+ }
+
+ bldev = td->bldev;
+ bldev->props.power = FB_BLANK_POWERDOWN;
+ taal_bl_update_status(bldev);
+ backlight_device_unregister(bldev);
+
+ cancel_delayed_work_sync(&td->esd_work);
+ destroy_workqueue(td->esd_wq);
+
+ kfree(td);
+}
+
+static int taal_enable(struct omap_dss_device *dssdev)
+{
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
+ u8 id1, id2, id3;
+ int r;
+
+ dev_dbg(&dssdev->dev, "enable\n");
+
+ if (dssdev->platform_enable) {
+ r = dssdev->platform_enable(dssdev);
+ if (r)
+ return r;
+ }
+
+ /* it seems we have to wait a bit until taal is ready */
+ msleep(5);
+
+ r = taal_sleep_out(td);
+ if (r)
+ goto err;
+
+ r = taal_get_id(&id1, &id2, &id3);
+ if (r)
+ goto err;
+
+ /* on early revisions CABC is broken */
+ if (id2 == 0x00 || id2 == 0xff || id2 == 0x81)
+ td->cabc_broken = true;
+
+ taal_dcs_write_1(DCS_BRIGHTNESS, 0xff);
+ taal_dcs_write_1(DCS_CTRL_DISPLAY, (1<<2) | (1<<5)); /* BL | BCTRL */
+
+ taal_dcs_write_1(DCS_PIXEL_FORMAT, 0x7); /* 24bit/pixel */
+
+ taal_set_addr_mode(td->rotate, td->mirror);
+ if (!td->cabc_broken)
+ taal_dcs_write_1(DCS_WRITE_CABC, td->cabc_mode);
+
+ taal_dcs_write_0(DCS_DISPLAY_ON);
+
+#ifdef TAAL_USE_ESD_CHECK
+ queue_delayed_work(td->esd_wq, &td->esd_work, TAAL_ESD_CHECK_PERIOD);
+#endif
+
+ td->enabled = 1;
+
+ if (!td->intro_printed) {
+ dev_info(&dssdev->dev, "revision %02x.%02x.%02x\n",
+ id1, id2, id3);
+ if (td->cabc_broken)
+ dev_info(&dssdev->dev,
+ "old Taal version, CABC disabled\n");
+ td->intro_printed = true;
+ }
+
+ return 0;
+err:
+ if (dssdev->platform_disable)
+ dssdev->platform_disable(dssdev);
+
+ return r;
+}
+
+static void taal_disable(struct omap_dss_device *dssdev)
+{
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
+
+ dev_dbg(&dssdev->dev, "disable\n");
+
+ cancel_delayed_work(&td->esd_work);
+
+ taal_dcs_write_0(DCS_DISPLAY_OFF);
+ taal_sleep_in(td);
+
+ /* wait a bit so that the message goes through */
+ msleep(10);
+
+ if (dssdev->platform_disable)
+ dssdev->platform_disable(dssdev);
+
+ td->enabled = 0;
+}
+
+static int taal_suspend(struct omap_dss_device *dssdev)
+{
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
+ struct backlight_device *bldev = td->bldev;
+
+ bldev->props.power = FB_BLANK_POWERDOWN;
+ taal_bl_update_status(bldev);
+
+ return 0;
+}
+
+static int taal_resume(struct omap_dss_device *dssdev)
+{
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
+ struct backlight_device *bldev = td->bldev;
+
+ bldev->props.power = FB_BLANK_UNBLANK;
+ taal_bl_update_status(bldev);
+
+ return 0;
+}
+
+static void taal_setup_update(struct omap_dss_device *dssdev,
+ u16 x, u16 y, u16 w, u16 h)
+{
+ taal_set_update_window(x, y, w, h);
+}
+
+static int taal_enable_te(struct omap_dss_device *dssdev, bool enable)
+{
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
+ int r;
+
+ td->te_enabled = enable;
+
+ if (enable)
+ r = taal_dcs_write_1(DCS_TEAR_ON, 0);
+ else
+ r = taal_dcs_write_0(DCS_TEAR_OFF);
+
+ return r;
+}
+
+static int taal_wait_te(struct omap_dss_device *dssdev)
+{
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
+ long wait = msecs_to_jiffies(500);
+
+ if (!td->use_ext_te || !td->te_enabled)
+ return 0;
+
+ INIT_COMPLETION(td->te_completion);
+ wait = wait_for_completion_timeout(&td->te_completion, wait);
+ if (wait == 0) {
+ dev_err(&dssdev->dev, "timeout waiting TE\n");
+ return -ETIME;
+ }
+
+ return 0;
+}
+
+static int taal_rotate(struct omap_dss_device *dssdev, u8 rotate)
+{
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
+ int r;
+
+ dev_dbg(&dssdev->dev, "rotate %d\n", rotate);
+
+ if (td->enabled) {
+ r = taal_set_addr_mode(rotate, td->mirror);
+
+ if (r)
+ return r;
+ }
+
+ td->rotate = rotate;
+
+ return 0;
+}
+
+static u8 taal_get_rotate(struct omap_dss_device *dssdev)
+{
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
+ return td->rotate;
+}
+
+static int taal_mirror(struct omap_dss_device *dssdev, bool enable)
+{
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
+ int r;
+
+ dev_dbg(&dssdev->dev, "mirror %d\n", enable);
+
+ if (td->enabled) {
+ r = taal_set_addr_mode(td->rotate, enable);
+
+ if (r)
+ return r;
+ }
+
+ td->mirror = enable;
+
+ return 0;
+}
+
+static bool taal_get_mirror(struct omap_dss_device *dssdev)
+{
+ struct taal_data *td = dev_get_drvdata(&dssdev->dev);
+ return td->mirror;
+}
+
+static int taal_run_test(struct omap_dss_device *dssdev, int test_num)
+{
+ u8 id1, id2, id3;
+ int r;
+
+ r = taal_dcs_read_1(DCS_GET_ID1, &id1);
+ if (r)
+ return r;
+ r = taal_dcs_read_1(DCS_GET_ID2, &id2);
+ if (r)
+ return r;
+ r = taal_dcs_read_1(DCS_GET_ID3, &id3);
+ if (r)
+ return r;
+
+ return 0;
+}
+
+static int taal_memory_read(struct omap_dss_device *dssdev,
+ void *buf, size_t size,
+ u16 x, u16 y, u16 w, u16 h)
+{
+ int r;
+ int first = 1;
+ int plen;
+ unsigned buf_used = 0;
+
+ if (size < w * h * 3)
+ return -ENOMEM;
+
+ size = min(w * h * 3,
+ dssdev->panel.timings.x_res *
+ dssdev->panel.timings.y_res * 3);
+
+ /* plen 1 or 2 goes into short packet. until checksum error is fixed,
+ * use short packets. plen 32 works, but bigger packets seem to cause
+ * an error. */
+ if (size % 2)
+ plen = 1;
+ else
+ plen = 2;
+
+ taal_setup_update(dssdev, x, y, w, h);
+
+ r = dsi_vc_set_max_rx_packet_size(TCH, plen);
+ if (r)
+ return r;
+
+ while (buf_used < size) {
+ u8 dcs_cmd = first ? 0x2e : 0x3e;
+ first = 0;
+
+ r = dsi_vc_dcs_read(TCH, dcs_cmd,
+ buf + buf_used, size - buf_used);
+
+ if (r < 0) {
+ dev_err(&dssdev->dev, "read error\n");
+ goto err;
+ }
+
+ buf_used += r;
+
+ if (r < plen) {
+ dev_err(&dssdev->dev, "short read\n");
+ break;
+ }
+
+ if (signal_pending(current)) {
+ dev_err(&dssdev->dev, "signal pending, "
+ "aborting memory read\n");
+ r = -ERESTARTSYS;
+ goto err;
+ }
+ }
+
+ r = buf_used;
+
+err:
+ dsi_vc_set_max_rx_packet_size(TCH, 1);
+
+ return r;
+}
+
+static void taal_esd_work(struct work_struct *work)
+{
+ struct taal_data *td = container_of(work, struct taal_data,
+ esd_work.work);
+ struct omap_dss_device *dssdev = td->dssdev;
+ u8 state1, state2;
+ int r;
+
+ if (!td->enabled)
+ return;
+
+ dsi_bus_lock();
+
+ r = taal_dcs_read_1(DCS_RDDSDR, &state1);
+ if (r) {
+ dev_err(&dssdev->dev, "failed to read Taal status\n");
+ goto err;
+ }
+
+ /* Run self diagnostics */
+ r = taal_sleep_out(td);
+ if (r) {
+ dev_err(&dssdev->dev, "failed to run Taal self-diagnostics\n");
+ goto err;
+ }
+
+ r = taal_dcs_read_1(DCS_RDDSDR, &state2);
+ if (r) {
+ dev_err(&dssdev->dev, "failed to read Taal status\n");
+ goto err;
+ }
+
+ /* Each sleep out command will trigger a self diagnostic and flip
+ * Bit6 if the test passes.
+ */
+ if (!((state1 ^ state2) & (1 << 6))) {
+ dev_err(&dssdev->dev, "LCD self diagnostics failed\n");
+ goto err;
+ }
+ /* Self-diagnostics result is also shown on TE GPIO line. We need
+ * to re-enable TE after self diagnostics */
+ if (td->use_ext_te && td->te_enabled)
+ taal_enable_te(dssdev, true);
+
+ dsi_bus_unlock();
+
+ queue_delayed_work(td->esd_wq, &td->esd_work, TAAL_ESD_CHECK_PERIOD);
+
+ return;
+err:
+ dev_err(&dssdev->dev, "performing LCD reset\n");
+
+ taal_disable(dssdev);
+ taal_enable(dssdev);
+
+ dsi_bus_unlock();
+
+ queue_delayed_work(td->esd_wq, &td->esd_work, TAAL_ESD_CHECK_PERIOD);
+}
+
+static struct omap_dss_driver taal_driver = {
+ .probe = taal_probe,
+ .remove = taal_remove,
+
+ .enable = taal_enable,
+ .disable = taal_disable,
+ .suspend = taal_suspend,
+ .resume = taal_resume,
+
+ .setup_update = taal_setup_update,
+ .enable_te = taal_enable_te,
+ .wait_for_te = taal_wait_te,
+ .set_rotate = taal_rotate,
+ .get_rotate = taal_get_rotate,
+ .set_mirror = taal_mirror,
+ .get_mirror = taal_get_mirror,
+ .run_test = taal_run_test,
+ .memory_read = taal_memory_read,
+
+ .driver = {
+ .name = "taal",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init taal_init(void)
+{
+ omap_dss_register_driver(&taal_driver);
+
+ return 0;
+}
+
+static void __exit taal_exit(void)
+{
+ omap_dss_unregister_driver(&taal_driver);
+}
+
+module_init(taal_init);
+module_exit(taal_exit);
+
+MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>");
+MODULE_DESCRIPTION("Taal Driver");
+MODULE_LICENSE("GPL");
--- /dev/null
+menuconfig OMAP2_DSS
+ tristate "OMAP2/3 Display Subsystem support (EXPERIMENTAL)"
+ depends on ARCH_OMAP2 || ARCH_OMAP3
+ help
+ OMAP2/3 Display Subsystem support.
+
+if OMAP2_DSS
+
+config OMAP2_VRAM_SIZE
+ int "VRAM size (MB)"
+ range 0 32
+ default 0
+ help
+ The amount of SDRAM to reserve at boot time for video RAM use.
+ This VRAM will be used by omapfb and other drivers that need
+ large continuous RAM area for video use.
+
+ You can also set this with "vram=<bytes>" kernel argument, or
+ in the board file.
+
+config OMAP2_DSS_DEBUG_SUPPORT
+ bool "Debug support"
+ default y
+ help
+ This enables debug messages. You need to enable printing
+ with 'debug' module parameter.
+
+config OMAP2_DSS_RFBI
+ bool "RFBI support"
+ default n
+ help
+ MIPI DBI, or RFBI (Remote Framebuffer Interface), support.
+
+config OMAP2_DSS_VENC
+ bool "VENC support"
+ default y
+ help
+ OMAP Video Encoder support.
+
+config OMAP2_DSS_SDI
+ bool "SDI support"
+ depends on ARCH_OMAP3
+ default n
+ help
+ SDI (Serial Display Interface) support.
+
+config OMAP2_DSS_DSI
+ bool "DSI support"
+ depends on ARCH_OMAP3
+ default n
+ help
+ MIPI DSI support.
+
+config OMAP2_DSS_USE_DSI_PLL
+ bool "Use DSI PLL for PCLK (EXPERIMENTAL)"
+ default n
+ depends on OMAP2_DSS_DSI
+ help
+ Use DSI PLL to generate pixel clock. Currently only for DPI output.
+ DSI PLL can be used to generate higher and more precise pixel clocks.
+
+config OMAP2_DSS_FAKE_VSYNC
+ bool "Fake VSYNC irq from manual update displays"
+ default n
+ help
+ If this is selected, DSI will generate a fake DISPC VSYNC interrupt
+ when DSI has sent a frame. This is only needed with DSI or RFBI
+ displays using manual mode, and you want VSYNC to, for example,
+ time animation.
+
+config OMAP2_DSS_MIN_FCK_PER_PCK
+ int "Minimum FCK/PCK ratio (for scaling)"
+ range 0 32
+ default 0
+ help
+ This can be used to adjust the minimum FCK/PCK ratio.
+
+ With this you can make sure that DISPC FCK is at least
+ n x PCK. Video plane scaling requires higher FCK than
+ normally.
+
+ If this is set to 0, there's no extra constraint on the
+ DISPC FCK. However, the FCK will at minimum be
+ 2xPCK (if active matrix) or 3xPCK (if passive matrix).
+
+ Max FCK is 173MHz, so this doesn't work if your PCK
+ is very high.
+
+endif
--- /dev/null
+obj-$(CONFIG_OMAP2_DSS) += omapdss.o
+omapdss-y := core.o dss.o dispc.o dpi.o display.o manager.o overlay.o
+omapdss-$(CONFIG_OMAP2_DSS_RFBI) += rfbi.o
+omapdss-$(CONFIG_OMAP2_DSS_VENC) += venc.o
+omapdss-$(CONFIG_OMAP2_DSS_SDI) += sdi.o
+omapdss-$(CONFIG_OMAP2_DSS_DSI) += dsi.o
--- /dev/null
+/*
+ * linux/drivers/video/omap2/dss/core.c
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * Some code and ideas taken from drivers/video/omap/ driver
+ * by Imre Deak.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define DSS_SUBSYS_NAME "CORE"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/seq_file.h>
+#include <linux/debugfs.h>
+#include <linux/io.h>
+#include <linux/device.h>
+
+#include <plat/display.h>
+#include <plat/clock.h>
+
+#include "dss.h"
+
+static struct {
+ struct platform_device *pdev;
+ int ctx_id;
+
+ struct clk *dss_ick;
+ struct clk *dss1_fck;
+ struct clk *dss2_fck;
+ struct clk *dss_54m_fck;
+ struct clk *dss_96m_fck;
+ unsigned num_clks_enabled;
+} core;
+
+static void dss_clk_enable_all_no_ctx(void);
+static void dss_clk_disable_all_no_ctx(void);
+static void dss_clk_enable_no_ctx(enum dss_clock clks);
+static void dss_clk_disable_no_ctx(enum dss_clock clks);
+
+static char *def_disp_name;
+module_param_named(def_disp, def_disp_name, charp, 0);
+MODULE_PARM_DESC(def_disp_name, "default display name");
+
+#ifdef DEBUG
+unsigned int dss_debug;
+module_param_named(debug, dss_debug, bool, 0644);
+#endif
+
+/* CONTEXT */
+static int dss_get_ctx_id(void)
+{
+ struct omap_dss_board_info *pdata = core.pdev->dev.platform_data;
+ int r;
+
+ if (!pdata->get_last_off_on_transaction_id)
+ return 0;
+ r = pdata->get_last_off_on_transaction_id(&core.pdev->dev);
+ if (r < 0) {
+ dev_err(&core.pdev->dev, "getting transaction ID failed, "
+ "will force context restore\n");
+ r = -1;
+ }
+ return r;
+}
+
+int dss_need_ctx_restore(void)
+{
+ int id = dss_get_ctx_id();
+
+ if (id < 0 || id != core.ctx_id) {
+ DSSDBG("ctx id %d -> id %d\n",
+ core.ctx_id, id);
+ core.ctx_id = id;
+ return 1;
+ } else {
+ return 0;
+ }
+}
+
+static void save_all_ctx(void)
+{
+ DSSDBG("save context\n");
+
+ dss_clk_enable_no_ctx(DSS_CLK_ICK | DSS_CLK_FCK1);
+
+ dss_save_context();
+ dispc_save_context();
+#ifdef CONFIG_OMAP2_DSS_DSI
+ dsi_save_context();
+#endif
+
+ dss_clk_disable_no_ctx(DSS_CLK_ICK | DSS_CLK_FCK1);
+}
+
+static void restore_all_ctx(void)
+{
+ DSSDBG("restore context\n");
+
+ dss_clk_enable_all_no_ctx();
+
+ dss_restore_context();
+ dispc_restore_context();
+#ifdef CONFIG_OMAP2_DSS_DSI
+ dsi_restore_context();
+#endif
+
+ dss_clk_disable_all_no_ctx();
+}
+
+/* CLOCKS */
+static void core_dump_clocks(struct seq_file *s)
+{
+ int i;
+ struct clk *clocks[5] = {
+ core.dss_ick,
+ core.dss1_fck,
+ core.dss2_fck,
+ core.dss_54m_fck,
+ core.dss_96m_fck
+ };
+
+ seq_printf(s, "- CORE -\n");
+
+ seq_printf(s, "internal clk count\t\t%u\n", core.num_clks_enabled);
+
+ for (i = 0; i < 5; i++) {
+ if (!clocks[i])
+ continue;
+ seq_printf(s, "%-15s\t%lu\t%d\n",
+ clocks[i]->name,
+ clk_get_rate(clocks[i]),
+ clocks[i]->usecount);
+ }
+}
+
+static int dss_get_clock(struct clk **clock, const char *clk_name)
+{
+ struct clk *clk;
+
+ clk = clk_get(&core.pdev->dev, clk_name);
+
+ if (IS_ERR(clk)) {
+ DSSERR("can't get clock %s", clk_name);
+ return PTR_ERR(clk);
+ }
+
+ *clock = clk;
+
+ DSSDBG("clk %s, rate %ld\n", clk_name, clk_get_rate(clk));
+
+ return 0;
+}
+
+static int dss_get_clocks(void)
+{
+ int r;
+
+ core.dss_ick = NULL;
+ core.dss1_fck = NULL;
+ core.dss2_fck = NULL;
+ core.dss_54m_fck = NULL;
+ core.dss_96m_fck = NULL;
+
+ r = dss_get_clock(&core.dss_ick, "ick");
+ if (r)
+ goto err;
+
+ r = dss_get_clock(&core.dss1_fck, "dss1_fck");
+ if (r)
+ goto err;
+
+ r = dss_get_clock(&core.dss2_fck, "dss2_fck");
+ if (r)
+ goto err;
+
+ r = dss_get_clock(&core.dss_54m_fck, "tv_fck");
+ if (r)
+ goto err;
+
+ r = dss_get_clock(&core.dss_96m_fck, "video_fck");
+ if (r)
+ goto err;
+
+ return 0;
+
+err:
+ if (core.dss_ick)
+ clk_put(core.dss_ick);
+ if (core.dss1_fck)
+ clk_put(core.dss1_fck);
+ if (core.dss2_fck)
+ clk_put(core.dss2_fck);
+ if (core.dss_54m_fck)
+ clk_put(core.dss_54m_fck);
+ if (core.dss_96m_fck)
+ clk_put(core.dss_96m_fck);
+
+ return r;
+}
+
+static void dss_put_clocks(void)
+{
+ if (core.dss_96m_fck)
+ clk_put(core.dss_96m_fck);
+ clk_put(core.dss_54m_fck);
+ clk_put(core.dss1_fck);
+ clk_put(core.dss2_fck);
+ clk_put(core.dss_ick);
+}
+
+unsigned long dss_clk_get_rate(enum dss_clock clk)
+{
+ switch (clk) {
+ case DSS_CLK_ICK:
+ return clk_get_rate(core.dss_ick);
+ case DSS_CLK_FCK1:
+ return clk_get_rate(core.dss1_fck);
+ case DSS_CLK_FCK2:
+ return clk_get_rate(core.dss2_fck);
+ case DSS_CLK_54M:
+ return clk_get_rate(core.dss_54m_fck);
+ case DSS_CLK_96M:
+ return clk_get_rate(core.dss_96m_fck);
+ }
+
+ BUG();
+ return 0;
+}
+
+static unsigned count_clk_bits(enum dss_clock clks)
+{
+ unsigned num_clks = 0;
+
+ if (clks & DSS_CLK_ICK)
+ ++num_clks;
+ if (clks & DSS_CLK_FCK1)
+ ++num_clks;
+ if (clks & DSS_CLK_FCK2)
+ ++num_clks;
+ if (clks & DSS_CLK_54M)
+ ++num_clks;
+ if (clks & DSS_CLK_96M)
+ ++num_clks;
+
+ return num_clks;
+}
+
+static void dss_clk_enable_no_ctx(enum dss_clock clks)
+{
+ unsigned num_clks = count_clk_bits(clks);
+
+ if (clks & DSS_CLK_ICK)
+ clk_enable(core.dss_ick);
+ if (clks & DSS_CLK_FCK1)
+ clk_enable(core.dss1_fck);
+ if (clks & DSS_CLK_FCK2)
+ clk_enable(core.dss2_fck);
+ if (clks & DSS_CLK_54M)
+ clk_enable(core.dss_54m_fck);
+ if (clks & DSS_CLK_96M)
+ clk_enable(core.dss_96m_fck);
+
+ core.num_clks_enabled += num_clks;
+}
+
+void dss_clk_enable(enum dss_clock clks)
+{
+ dss_clk_enable_no_ctx(clks);
+
+ if (cpu_is_omap34xx() && dss_need_ctx_restore())
+ restore_all_ctx();
+}
+
+static void dss_clk_disable_no_ctx(enum dss_clock clks)
+{
+ unsigned num_clks = count_clk_bits(clks);
+
+ if (clks & DSS_CLK_ICK)
+ clk_disable(core.dss_ick);
+ if (clks & DSS_CLK_FCK1)
+ clk_disable(core.dss1_fck);
+ if (clks & DSS_CLK_FCK2)
+ clk_disable(core.dss2_fck);
+ if (clks & DSS_CLK_54M)
+ clk_disable(core.dss_54m_fck);
+ if (clks & DSS_CLK_96M)
+ clk_disable(core.dss_96m_fck);
+
+ core.num_clks_enabled -= num_clks;
+}
+
+void dss_clk_disable(enum dss_clock clks)
+{
+ if (cpu_is_omap34xx()) {
+ unsigned num_clks = count_clk_bits(clks);
+
+ BUG_ON(core.num_clks_enabled < num_clks);
+
+ if (core.num_clks_enabled == num_clks)
+ save_all_ctx();
+ }
+
+ dss_clk_disable_no_ctx(clks);
+}
+
+static void dss_clk_enable_all_no_ctx(void)
+{
+ enum dss_clock clks;
+
+ clks = DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_FCK2 | DSS_CLK_54M;
+ if (cpu_is_omap34xx())
+ clks |= DSS_CLK_96M;
+ dss_clk_enable_no_ctx(clks);
+}
+
+static void dss_clk_disable_all_no_ctx(void)
+{
+ enum dss_clock clks;
+
+ clks = DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_FCK2 | DSS_CLK_54M;
+ if (cpu_is_omap34xx())
+ clks |= DSS_CLK_96M;
+ dss_clk_disable_no_ctx(clks);
+}
+
+static void dss_clk_disable_all(void)
+{
+ enum dss_clock clks;
+
+ clks = DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_FCK2 | DSS_CLK_54M;
+ if (cpu_is_omap34xx())
+ clks |= DSS_CLK_96M;
+ dss_clk_disable(clks);
+}
+
+/* DEBUGFS */
+#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT)
+static void dss_debug_dump_clocks(struct seq_file *s)
+{
+ core_dump_clocks(s);
+ dss_dump_clocks(s);
+ dispc_dump_clocks(s);
+#ifdef CONFIG_OMAP2_DSS_DSI
+ dsi_dump_clocks(s);
+#endif
+}
+
+static int dss_debug_show(struct seq_file *s, void *unused)
+{
+ void (*func)(struct seq_file *) = s->private;
+ func(s);
+ return 0;
+}
+
+static int dss_debug_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, dss_debug_show, inode->i_private);
+}
+
+static const struct file_operations dss_debug_fops = {
+ .open = dss_debug_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static struct dentry *dss_debugfs_dir;
+
+static int dss_initialize_debugfs(void)
+{
+ dss_debugfs_dir = debugfs_create_dir("omapdss", NULL);
+ if (IS_ERR(dss_debugfs_dir)) {
+ int err = PTR_ERR(dss_debugfs_dir);
+ dss_debugfs_dir = NULL;
+ return err;
+ }
+
+ debugfs_create_file("clk", S_IRUGO, dss_debugfs_dir,
+ &dss_debug_dump_clocks, &dss_debug_fops);
+
+ debugfs_create_file("dss", S_IRUGO, dss_debugfs_dir,
+ &dss_dump_regs, &dss_debug_fops);
+ debugfs_create_file("dispc", S_IRUGO, dss_debugfs_dir,
+ &dispc_dump_regs, &dss_debug_fops);
+#ifdef CONFIG_OMAP2_DSS_RFBI
+ debugfs_create_file("rfbi", S_IRUGO, dss_debugfs_dir,
+ &rfbi_dump_regs, &dss_debug_fops);
+#endif
+#ifdef CONFIG_OMAP2_DSS_DSI
+ debugfs_create_file("dsi", S_IRUGO, dss_debugfs_dir,
+ &dsi_dump_regs, &dss_debug_fops);
+#endif
+#ifdef CONFIG_OMAP2_DSS_VENC
+ debugfs_create_file("venc", S_IRUGO, dss_debugfs_dir,
+ &venc_dump_regs, &dss_debug_fops);
+#endif
+ return 0;
+}
+
+static void dss_uninitialize_debugfs(void)
+{
+ if (dss_debugfs_dir)
+ debugfs_remove_recursive(dss_debugfs_dir);
+}
+#endif /* CONFIG_DEBUG_FS && CONFIG_OMAP2_DSS_DEBUG_SUPPORT */
+
+/* PLATFORM DEVICE */
+static int omap_dss_probe(struct platform_device *pdev)
+{
+ struct omap_dss_board_info *pdata = pdev->dev.platform_data;
+ int skip_init = 0;
+ int r;
+ int i;
+
+ core.pdev = pdev;
+
+ dss_init_overlay_managers(pdev);
+ dss_init_overlays(pdev);
+
+ r = dss_get_clocks();
+ if (r)
+ goto fail0;
+
+ dss_clk_enable_all_no_ctx();
+
+ core.ctx_id = dss_get_ctx_id();
+ DSSDBG("initial ctx id %u\n", core.ctx_id);
+
+#ifdef CONFIG_FB_OMAP_BOOTLOADER_INIT
+ /* DISPC_CONTROL */
+ if (omap_readl(0x48050440) & 1) /* LCD enabled? */
+ skip_init = 1;
+#endif
+
+ r = dss_init(skip_init);
+ if (r) {
+ DSSERR("Failed to initialize DSS\n");
+ goto fail0;
+ }
+
+#ifdef CONFIG_OMAP2_DSS_RFBI
+ r = rfbi_init();
+ if (r) {
+ DSSERR("Failed to initialize rfbi\n");
+ goto fail0;
+ }
+#endif
+
+ r = dpi_init();
+ if (r) {
+ DSSERR("Failed to initialize dpi\n");
+ goto fail0;
+ }
+
+ r = dispc_init();
+ if (r) {
+ DSSERR("Failed to initialize dispc\n");
+ goto fail0;
+ }
+#ifdef CONFIG_OMAP2_DSS_VENC
+ r = venc_init(pdev);
+ if (r) {
+ DSSERR("Failed to initialize venc\n");
+ goto fail0;
+ }
+#endif
+ if (cpu_is_omap34xx()) {
+#ifdef CONFIG_OMAP2_DSS_SDI
+ r = sdi_init(skip_init);
+ if (r) {
+ DSSERR("Failed to initialize SDI\n");
+ goto fail0;
+ }
+#endif
+#ifdef CONFIG_OMAP2_DSS_DSI
+ r = dsi_init(pdev);
+ if (r) {
+ DSSERR("Failed to initialize DSI\n");
+ goto fail0;
+ }
+#endif
+ }
+
+#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT)
+ r = dss_initialize_debugfs();
+ if (r)
+ goto fail0;
+#endif
+
+ for (i = 0; i < pdata->num_devices; ++i) {
+ struct omap_dss_device *dssdev = pdata->devices[i];
+
+ r = omap_dss_register_device(dssdev);
+ if (r)
+ DSSERR("device reg failed %d\n", i);
+
+ if (def_disp_name && strcmp(def_disp_name, dssdev->name) == 0)
+ pdata->default_device = dssdev;
+ }
+
+ dss_clk_disable_all();
+
+ return 0;
+
+ /* XXX fail correctly */
+fail0:
+ return r;
+}
+
+static int omap_dss_remove(struct platform_device *pdev)
+{
+ struct omap_dss_board_info *pdata = pdev->dev.platform_data;
+ int i;
+ int c;
+
+#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT)
+ dss_uninitialize_debugfs();
+#endif
+
+#ifdef CONFIG_OMAP2_DSS_VENC
+ venc_exit();
+#endif
+ dispc_exit();
+ dpi_exit();
+#ifdef CONFIG_OMAP2_DSS_RFBI
+ rfbi_exit();
+#endif
+ if (cpu_is_omap34xx()) {
+#ifdef CONFIG_OMAP2_DSS_DSI
+ dsi_exit();
+#endif
+#ifdef CONFIG_OMAP2_DSS_SDI
+ sdi_exit();
+#endif
+ }
+
+ dss_exit();
+
+ /* these should be removed at some point */
+ c = core.dss_ick->usecount;
+ if (c > 0) {
+ DSSERR("warning: dss_ick usecount %d, disabling\n", c);
+ while (c-- > 0)
+ clk_disable(core.dss_ick);
+ }
+
+ c = core.dss1_fck->usecount;
+ if (c > 0) {
+ DSSERR("warning: dss1_fck usecount %d, disabling\n", c);
+ while (c-- > 0)
+ clk_disable(core.dss1_fck);
+ }
+
+ c = core.dss2_fck->usecount;
+ if (c > 0) {
+ DSSERR("warning: dss2_fck usecount %d, disabling\n", c);
+ while (c-- > 0)
+ clk_disable(core.dss2_fck);
+ }
+
+ c = core.dss_54m_fck->usecount;
+ if (c > 0) {
+ DSSERR("warning: dss_54m_fck usecount %d, disabling\n", c);
+ while (c-- > 0)
+ clk_disable(core.dss_54m_fck);
+ }
+
+ if (core.dss_96m_fck) {
+ c = core.dss_96m_fck->usecount;
+ if (c > 0) {
+ DSSERR("warning: dss_96m_fck usecount %d, disabling\n",
+ c);
+ while (c-- > 0)
+ clk_disable(core.dss_96m_fck);
+ }
+ }
+
+ dss_put_clocks();
+
+ dss_uninit_overlays(pdev);
+ dss_uninit_overlay_managers(pdev);
+
+ for (i = 0; i < pdata->num_devices; ++i)
+ omap_dss_unregister_device(pdata->devices[i]);
+
+ return 0;
+}
+
+static void omap_dss_shutdown(struct platform_device *pdev)
+{
+ DSSDBG("shutdown\n");
+ dss_disable_all_devices();
+}
+
+static int omap_dss_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ DSSDBG("suspend %d\n", state.event);
+
+ return dss_suspend_all_devices();
+}
+
+static int omap_dss_resume(struct platform_device *pdev)
+{
+ DSSDBG("resume\n");
+
+ return dss_resume_all_devices();
+}
+
+static struct platform_driver omap_dss_driver = {
+ .probe = omap_dss_probe,
+ .remove = omap_dss_remove,
+ .shutdown = omap_dss_shutdown,
+ .suspend = omap_dss_suspend,
+ .resume = omap_dss_resume,
+ .driver = {
+ .name = "omapdss",
+ .owner = THIS_MODULE,
+ },
+};
+
+/* BUS */
+static int dss_bus_match(struct device *dev, struct device_driver *driver)
+{
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+
+ DSSDBG("bus_match. dev %s/%s, drv %s\n",
+ dev_name(dev), dssdev->driver_name, driver->name);
+
+ return strcmp(dssdev->driver_name, driver->name) == 0;
+}
+
+static ssize_t device_name_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ return snprintf(buf, PAGE_SIZE, "%s\n",
+ dssdev->name ?
+ dssdev->name : "");
+}
+
+static struct device_attribute default_dev_attrs[] = {
+ __ATTR(name, S_IRUGO, device_name_show, NULL),
+ __ATTR_NULL,
+};
+
+static ssize_t driver_name_show(struct device_driver *drv, char *buf)
+{
+ struct omap_dss_driver *dssdrv = to_dss_driver(drv);
+ return snprintf(buf, PAGE_SIZE, "%s\n",
+ dssdrv->driver.name ?
+ dssdrv->driver.name : "");
+}
+static struct driver_attribute default_drv_attrs[] = {
+ __ATTR(name, S_IRUGO, driver_name_show, NULL),
+ __ATTR_NULL,
+};
+
+static struct bus_type dss_bus_type = {
+ .name = "omapdss",
+ .match = dss_bus_match,
+ .dev_attrs = default_dev_attrs,
+ .drv_attrs = default_drv_attrs,
+};
+
+static void dss_bus_release(struct device *dev)
+{
+ DSSDBG("bus_release\n");
+}
+
+static struct device dss_bus = {
+ .release = dss_bus_release,
+};
+
+struct bus_type *dss_get_bus(void)
+{
+ return &dss_bus_type;
+}
+
+/* DRIVER */
+static int dss_driver_probe(struct device *dev)
+{
+ int r;
+ struct omap_dss_driver *dssdrv = to_dss_driver(dev->driver);
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ struct omap_dss_board_info *pdata = core.pdev->dev.platform_data;
+ bool force;
+
+ DSSDBG("driver_probe: dev %s/%s, drv %s\n",
+ dev_name(dev), dssdev->driver_name,
+ dssdrv->driver.name);
+
+ dss_init_device(core.pdev, dssdev);
+
+ /* skip this if the device is behind a ctrl */
+ if (!dssdev->panel.ctrl) {
+ force = pdata->default_device == dssdev;
+ dss_recheck_connections(dssdev, force);
+ }
+
+ r = dssdrv->probe(dssdev);
+
+ if (r) {
+ DSSERR("driver probe failed: %d\n", r);
+ return r;
+ }
+
+ DSSDBG("probe done for device %s\n", dev_name(dev));
+
+ dssdev->driver = dssdrv;
+
+ return 0;
+}
+
+static int dss_driver_remove(struct device *dev)
+{
+ struct omap_dss_driver *dssdrv = to_dss_driver(dev->driver);
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+
+ DSSDBG("driver_remove: dev %s/%s\n", dev_name(dev),
+ dssdev->driver_name);
+
+ dssdrv->remove(dssdev);
+
+ dss_uninit_device(core.pdev, dssdev);
+
+ dssdev->driver = NULL;
+
+ return 0;
+}
+
+int omap_dss_register_driver(struct omap_dss_driver *dssdriver)
+{
+ dssdriver->driver.bus = &dss_bus_type;
+ dssdriver->driver.probe = dss_driver_probe;
+ dssdriver->driver.remove = dss_driver_remove;
+ return driver_register(&dssdriver->driver);
+}
+EXPORT_SYMBOL(omap_dss_register_driver);
+
+void omap_dss_unregister_driver(struct omap_dss_driver *dssdriver)
+{
+ driver_unregister(&dssdriver->driver);
+}
+EXPORT_SYMBOL(omap_dss_unregister_driver);
+
+/* DEVICE */
+static void reset_device(struct device *dev, int check)
+{
+ u8 *dev_p = (u8 *)dev;
+ u8 *dev_end = dev_p + sizeof(*dev);
+ void *saved_pdata;
+
+ saved_pdata = dev->platform_data;
+ if (check) {
+ /*
+ * Check if there is any other setting than platform_data
+ * in struct device; warn that these will be reset by our
+ * init.
+ */
+ dev->platform_data = NULL;
+ while (dev_p < dev_end) {
+ if (*dev_p) {
+ WARN("%s: struct device fields will be "
+ "discarded\n",
+ __func__);
+ break;
+ }
+ dev_p++;
+ }
+ }
+ memset(dev, 0, sizeof(*dev));
+ dev->platform_data = saved_pdata;
+}
+
+
+static void omap_dss_dev_release(struct device *dev)
+{
+ reset_device(dev, 0);
+}
+
+int omap_dss_register_device(struct omap_dss_device *dssdev)
+{
+ static int dev_num;
+ static int panel_num;
+ int r;
+
+ WARN_ON(!dssdev->driver_name);
+
+ reset_device(&dssdev->dev, 1);
+ dssdev->dev.bus = &dss_bus_type;
+ dssdev->dev.parent = &dss_bus;
+ dssdev->dev.release = omap_dss_dev_release;
+ dev_set_name(&dssdev->dev, "display%d", dev_num++);
+ r = device_register(&dssdev->dev);
+ if (r)
+ return r;
+
+ if (dssdev->ctrl.panel) {
+ struct omap_dss_device *panel = dssdev->ctrl.panel;
+
+ panel->panel.ctrl = dssdev;
+
+ reset_device(&panel->dev, 1);
+ panel->dev.bus = &dss_bus_type;
+ panel->dev.parent = &dssdev->dev;
+ panel->dev.release = omap_dss_dev_release;
+ dev_set_name(&panel->dev, "panel%d", panel_num++);
+ r = device_register(&panel->dev);
+ if (r)
+ return r;
+ }
+
+ return 0;
+}
+
+void omap_dss_unregister_device(struct omap_dss_device *dssdev)
+{
+ device_unregister(&dssdev->dev);
+
+ if (dssdev->ctrl.panel) {
+ struct omap_dss_device *panel = dssdev->ctrl.panel;
+ device_unregister(&panel->dev);
+ }
+}
+
+/* BUS */
+static int omap_dss_bus_register(void)
+{
+ int r;
+
+ r = bus_register(&dss_bus_type);
+ if (r) {
+ DSSERR("bus register failed\n");
+ return r;
+ }
+
+ dev_set_name(&dss_bus, "omapdss");
+ r = device_register(&dss_bus);
+ if (r) {
+ DSSERR("bus driver register failed\n");
+ bus_unregister(&dss_bus_type);
+ return r;
+ }
+
+ return 0;
+}
+
+/* INIT */
+
+#ifdef CONFIG_OMAP2_DSS_MODULE
+static void omap_dss_bus_unregister(void)
+{
+ device_unregister(&dss_bus);
+
+ bus_unregister(&dss_bus_type);
+}
+
+static int __init omap_dss_init(void)
+{
+ int r;
+
+ r = omap_dss_bus_register();
+ if (r)
+ return r;
+
+ r = platform_driver_register(&omap_dss_driver);
+ if (r) {
+ omap_dss_bus_unregister();
+ return r;
+ }
+
+ return 0;
+}
+
+static void __exit omap_dss_exit(void)
+{
+ platform_driver_unregister(&omap_dss_driver);
+
+ omap_dss_bus_unregister();
+}
+
+module_init(omap_dss_init);
+module_exit(omap_dss_exit);
+#else
+static int __init omap_dss_init(void)
+{
+ return omap_dss_bus_register();
+}
+
+static int __init omap_dss_init2(void)
+{
+ return platform_driver_register(&omap_dss_driver);
+}
+
+core_initcall(omap_dss_init);
+device_initcall(omap_dss_init2);
+#endif
+
+MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>");
+MODULE_DESCRIPTION("OMAP2/3 Display Subsystem");
+MODULE_LICENSE("GPL v2");
+
--- /dev/null
+/*
+ * linux/drivers/video/omap2/dss/dispc.c
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * Some code and ideas taken from drivers/video/omap/ driver
+ * by Imre Deak.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define DSS_SUBSYS_NAME "DISPC"
+
+#include <linux/kernel.h>
+#include <linux/dma-mapping.h>
+#include <linux/vmalloc.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/jiffies.h>
+#include <linux/seq_file.h>
+#include <linux/delay.h>
+#include <linux/workqueue.h>
+
+#include <plat/sram.h>
+#include <plat/clock.h>
+
+#include <plat/display.h>
+
+#include "dss.h"
+
+/* DISPC */
+#define DISPC_BASE 0x48050400
+
+#define DISPC_SZ_REGS SZ_1K
+
+struct dispc_reg { u16 idx; };
+
+#define DISPC_REG(idx) ((const struct dispc_reg) { idx })
+
+/* DISPC common */
+#define DISPC_REVISION DISPC_REG(0x0000)
+#define DISPC_SYSCONFIG DISPC_REG(0x0010)
+#define DISPC_SYSSTATUS DISPC_REG(0x0014)
+#define DISPC_IRQSTATUS DISPC_REG(0x0018)
+#define DISPC_IRQENABLE DISPC_REG(0x001C)
+#define DISPC_CONTROL DISPC_REG(0x0040)
+#define DISPC_CONFIG DISPC_REG(0x0044)
+#define DISPC_CAPABLE DISPC_REG(0x0048)
+#define DISPC_DEFAULT_COLOR0 DISPC_REG(0x004C)
+#define DISPC_DEFAULT_COLOR1 DISPC_REG(0x0050)
+#define DISPC_TRANS_COLOR0 DISPC_REG(0x0054)
+#define DISPC_TRANS_COLOR1 DISPC_REG(0x0058)
+#define DISPC_LINE_STATUS DISPC_REG(0x005C)
+#define DISPC_LINE_NUMBER DISPC_REG(0x0060)
+#define DISPC_TIMING_H DISPC_REG(0x0064)
+#define DISPC_TIMING_V DISPC_REG(0x0068)
+#define DISPC_POL_FREQ DISPC_REG(0x006C)
+#define DISPC_DIVISOR DISPC_REG(0x0070)
+#define DISPC_GLOBAL_ALPHA DISPC_REG(0x0074)
+#define DISPC_SIZE_DIG DISPC_REG(0x0078)
+#define DISPC_SIZE_LCD DISPC_REG(0x007C)
+
+/* DISPC GFX plane */
+#define DISPC_GFX_BA0 DISPC_REG(0x0080)
+#define DISPC_GFX_BA1 DISPC_REG(0x0084)
+#define DISPC_GFX_POSITION DISPC_REG(0x0088)
+#define DISPC_GFX_SIZE DISPC_REG(0x008C)
+#define DISPC_GFX_ATTRIBUTES DISPC_REG(0x00A0)
+#define DISPC_GFX_FIFO_THRESHOLD DISPC_REG(0x00A4)
+#define DISPC_GFX_FIFO_SIZE_STATUS DISPC_REG(0x00A8)
+#define DISPC_GFX_ROW_INC DISPC_REG(0x00AC)
+#define DISPC_GFX_PIXEL_INC DISPC_REG(0x00B0)
+#define DISPC_GFX_WINDOW_SKIP DISPC_REG(0x00B4)
+#define DISPC_GFX_TABLE_BA DISPC_REG(0x00B8)
+
+#define DISPC_DATA_CYCLE1 DISPC_REG(0x01D4)
+#define DISPC_DATA_CYCLE2 DISPC_REG(0x01D8)
+#define DISPC_DATA_CYCLE3 DISPC_REG(0x01DC)
+
+#define DISPC_CPR_COEF_R DISPC_REG(0x0220)
+#define DISPC_CPR_COEF_G DISPC_REG(0x0224)
+#define DISPC_CPR_COEF_B DISPC_REG(0x0228)
+
+#define DISPC_GFX_PRELOAD DISPC_REG(0x022C)
+
+/* DISPC Video plane, n = 0 for VID1 and n = 1 for VID2 */
+#define DISPC_VID_REG(n, idx) DISPC_REG(0x00BC + (n)*0x90 + idx)
+
+#define DISPC_VID_BA0(n) DISPC_VID_REG(n, 0x0000)
+#define DISPC_VID_BA1(n) DISPC_VID_REG(n, 0x0004)
+#define DISPC_VID_POSITION(n) DISPC_VID_REG(n, 0x0008)
+#define DISPC_VID_SIZE(n) DISPC_VID_REG(n, 0x000C)
+#define DISPC_VID_ATTRIBUTES(n) DISPC_VID_REG(n, 0x0010)
+#define DISPC_VID_FIFO_THRESHOLD(n) DISPC_VID_REG(n, 0x0014)
+#define DISPC_VID_FIFO_SIZE_STATUS(n) DISPC_VID_REG(n, 0x0018)
+#define DISPC_VID_ROW_INC(n) DISPC_VID_REG(n, 0x001C)
+#define DISPC_VID_PIXEL_INC(n) DISPC_VID_REG(n, 0x0020)
+#define DISPC_VID_FIR(n) DISPC_VID_REG(n, 0x0024)
+#define DISPC_VID_PICTURE_SIZE(n) DISPC_VID_REG(n, 0x0028)
+#define DISPC_VID_ACCU0(n) DISPC_VID_REG(n, 0x002C)
+#define DISPC_VID_ACCU1(n) DISPC_VID_REG(n, 0x0030)
+
+/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */
+#define DISPC_VID_FIR_COEF_H(n, i) DISPC_REG(0x00F0 + (n)*0x90 + (i)*0x8)
+/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */
+#define DISPC_VID_FIR_COEF_HV(n, i) DISPC_REG(0x00F4 + (n)*0x90 + (i)*0x8)
+/* coef index i = {0, 1, 2, 3, 4} */
+#define DISPC_VID_CONV_COEF(n, i) DISPC_REG(0x0130 + (n)*0x90 + (i)*0x4)
+/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */
+#define DISPC_VID_FIR_COEF_V(n, i) DISPC_REG(0x01E0 + (n)*0x20 + (i)*0x4)
+
+#define DISPC_VID_PRELOAD(n) DISPC_REG(0x230 + (n)*0x04)
+
+
+#define DISPC_IRQ_MASK_ERROR (DISPC_IRQ_GFX_FIFO_UNDERFLOW | \
+ DISPC_IRQ_OCP_ERR | \
+ DISPC_IRQ_VID1_FIFO_UNDERFLOW | \
+ DISPC_IRQ_VID2_FIFO_UNDERFLOW | \
+ DISPC_IRQ_SYNC_LOST | \
+ DISPC_IRQ_SYNC_LOST_DIGIT)
+
+#define DISPC_MAX_NR_ISRS 8
+
+struct omap_dispc_isr_data {
+ omap_dispc_isr_t isr;
+ void *arg;
+ u32 mask;
+};
+
+#define REG_GET(idx, start, end) \
+ FLD_GET(dispc_read_reg(idx), start, end)
+
+#define REG_FLD_MOD(idx, val, start, end) \
+ dispc_write_reg(idx, FLD_MOD(dispc_read_reg(idx), val, start, end))
+
+static const struct dispc_reg dispc_reg_att[] = { DISPC_GFX_ATTRIBUTES,
+ DISPC_VID_ATTRIBUTES(0),
+ DISPC_VID_ATTRIBUTES(1) };
+
+static struct {
+ void __iomem *base;
+
+ u32 fifo_size[3];
+
+ spinlock_t irq_lock;
+ u32 irq_error_mask;
+ struct omap_dispc_isr_data registered_isr[DISPC_MAX_NR_ISRS];
+ u32 error_irqs;
+ struct work_struct error_work;
+
+ u32 ctx[DISPC_SZ_REGS / sizeof(u32)];
+} dispc;
+
+static void _omap_dispc_set_irqs(void);
+
+static inline void dispc_write_reg(const struct dispc_reg idx, u32 val)
+{
+ __raw_writel(val, dispc.base + idx.idx);
+}
+
+static inline u32 dispc_read_reg(const struct dispc_reg idx)
+{
+ return __raw_readl(dispc.base + idx.idx);
+}
+
+#define SR(reg) \
+ dispc.ctx[(DISPC_##reg).idx / sizeof(u32)] = dispc_read_reg(DISPC_##reg)
+#define RR(reg) \
+ dispc_write_reg(DISPC_##reg, dispc.ctx[(DISPC_##reg).idx / sizeof(u32)])
+
+void dispc_save_context(void)
+{
+ if (cpu_is_omap24xx())
+ return;
+
+ SR(SYSCONFIG);
+ SR(IRQENABLE);
+ SR(CONTROL);
+ SR(CONFIG);
+ SR(DEFAULT_COLOR0);
+ SR(DEFAULT_COLOR1);
+ SR(TRANS_COLOR0);
+ SR(TRANS_COLOR1);
+ SR(LINE_NUMBER);
+ SR(TIMING_H);
+ SR(TIMING_V);
+ SR(POL_FREQ);
+ SR(DIVISOR);
+ SR(GLOBAL_ALPHA);
+ SR(SIZE_DIG);
+ SR(SIZE_LCD);
+
+ SR(GFX_BA0);
+ SR(GFX_BA1);
+ SR(GFX_POSITION);
+ SR(GFX_SIZE);
+ SR(GFX_ATTRIBUTES);
+ SR(GFX_FIFO_THRESHOLD);
+ SR(GFX_ROW_INC);
+ SR(GFX_PIXEL_INC);
+ SR(GFX_WINDOW_SKIP);
+ SR(GFX_TABLE_BA);
+
+ SR(DATA_CYCLE1);
+ SR(DATA_CYCLE2);
+ SR(DATA_CYCLE3);
+
+ SR(CPR_COEF_R);
+ SR(CPR_COEF_G);
+ SR(CPR_COEF_B);
+
+ SR(GFX_PRELOAD);
+
+ /* VID1 */
+ SR(VID_BA0(0));
+ SR(VID_BA1(0));
+ SR(VID_POSITION(0));
+ SR(VID_SIZE(0));
+ SR(VID_ATTRIBUTES(0));
+ SR(VID_FIFO_THRESHOLD(0));
+ SR(VID_ROW_INC(0));
+ SR(VID_PIXEL_INC(0));
+ SR(VID_FIR(0));
+ SR(VID_PICTURE_SIZE(0));
+ SR(VID_ACCU0(0));
+ SR(VID_ACCU1(0));
+
+ SR(VID_FIR_COEF_H(0, 0));
+ SR(VID_FIR_COEF_H(0, 1));
+ SR(VID_FIR_COEF_H(0, 2));
+ SR(VID_FIR_COEF_H(0, 3));
+ SR(VID_FIR_COEF_H(0, 4));
+ SR(VID_FIR_COEF_H(0, 5));
+ SR(VID_FIR_COEF_H(0, 6));
+ SR(VID_FIR_COEF_H(0, 7));
+
+ SR(VID_FIR_COEF_HV(0, 0));
+ SR(VID_FIR_COEF_HV(0, 1));
+ SR(VID_FIR_COEF_HV(0, 2));
+ SR(VID_FIR_COEF_HV(0, 3));
+ SR(VID_FIR_COEF_HV(0, 4));
+ SR(VID_FIR_COEF_HV(0, 5));
+ SR(VID_FIR_COEF_HV(0, 6));
+ SR(VID_FIR_COEF_HV(0, 7));
+
+ SR(VID_CONV_COEF(0, 0));
+ SR(VID_CONV_COEF(0, 1));
+ SR(VID_CONV_COEF(0, 2));
+ SR(VID_CONV_COEF(0, 3));
+ SR(VID_CONV_COEF(0, 4));
+
+ SR(VID_FIR_COEF_V(0, 0));
+ SR(VID_FIR_COEF_V(0, 1));
+ SR(VID_FIR_COEF_V(0, 2));
+ SR(VID_FIR_COEF_V(0, 3));
+ SR(VID_FIR_COEF_V(0, 4));
+ SR(VID_FIR_COEF_V(0, 5));
+ SR(VID_FIR_COEF_V(0, 6));
+ SR(VID_FIR_COEF_V(0, 7));
+
+ SR(VID_PRELOAD(0));
+
+ /* VID2 */
+ SR(VID_BA0(1));
+ SR(VID_BA1(1));
+ SR(VID_POSITION(1));
+ SR(VID_SIZE(1));
+ SR(VID_ATTRIBUTES(1));
+ SR(VID_FIFO_THRESHOLD(1));
+ SR(VID_ROW_INC(1));
+ SR(VID_PIXEL_INC(1));
+ SR(VID_FIR(1));
+ SR(VID_PICTURE_SIZE(1));
+ SR(VID_ACCU0(1));
+ SR(VID_ACCU1(1));
+
+ SR(VID_FIR_COEF_H(1, 0));
+ SR(VID_FIR_COEF_H(1, 1));
+ SR(VID_FIR_COEF_H(1, 2));
+ SR(VID_FIR_COEF_H(1, 3));
+ SR(VID_FIR_COEF_H(1, 4));
+ SR(VID_FIR_COEF_H(1, 5));
+ SR(VID_FIR_COEF_H(1, 6));
+ SR(VID_FIR_COEF_H(1, 7));
+
+ SR(VID_FIR_COEF_HV(1, 0));
+ SR(VID_FIR_COEF_HV(1, 1));
+ SR(VID_FIR_COEF_HV(1, 2));
+ SR(VID_FIR_COEF_HV(1, 3));
+ SR(VID_FIR_COEF_HV(1, 4));
+ SR(VID_FIR_COEF_HV(1, 5));
+ SR(VID_FIR_COEF_HV(1, 6));
+ SR(VID_FIR_COEF_HV(1, 7));
+
+ SR(VID_CONV_COEF(1, 0));
+ SR(VID_CONV_COEF(1, 1));
+ SR(VID_CONV_COEF(1, 2));
+ SR(VID_CONV_COEF(1, 3));
+ SR(VID_CONV_COEF(1, 4));
+
+ SR(VID_FIR_COEF_V(1, 0));
+ SR(VID_FIR_COEF_V(1, 1));
+ SR(VID_FIR_COEF_V(1, 2));
+ SR(VID_FIR_COEF_V(1, 3));
+ SR(VID_FIR_COEF_V(1, 4));
+ SR(VID_FIR_COEF_V(1, 5));
+ SR(VID_FIR_COEF_V(1, 6));
+ SR(VID_FIR_COEF_V(1, 7));
+
+ SR(VID_PRELOAD(1));
+}
+
+void dispc_restore_context(void)
+{
+ RR(SYSCONFIG);
+ RR(IRQENABLE);
+ /*RR(CONTROL);*/
+ RR(CONFIG);
+ RR(DEFAULT_COLOR0);
+ RR(DEFAULT_COLOR1);
+ RR(TRANS_COLOR0);
+ RR(TRANS_COLOR1);
+ RR(LINE_NUMBER);
+ RR(TIMING_H);
+ RR(TIMING_V);
+ RR(POL_FREQ);
+ RR(DIVISOR);
+ RR(GLOBAL_ALPHA);
+ RR(SIZE_DIG);
+ RR(SIZE_LCD);
+
+ RR(GFX_BA0);
+ RR(GFX_BA1);
+ RR(GFX_POSITION);
+ RR(GFX_SIZE);
+ RR(GFX_ATTRIBUTES);
+ RR(GFX_FIFO_THRESHOLD);
+ RR(GFX_ROW_INC);
+ RR(GFX_PIXEL_INC);
+ RR(GFX_WINDOW_SKIP);
+ RR(GFX_TABLE_BA);
+
+ RR(DATA_CYCLE1);
+ RR(DATA_CYCLE2);
+ RR(DATA_CYCLE3);
+
+ RR(CPR_COEF_R);
+ RR(CPR_COEF_G);
+ RR(CPR_COEF_B);
+
+ RR(GFX_PRELOAD);
+
+ /* VID1 */
+ RR(VID_BA0(0));
+ RR(VID_BA1(0));
+ RR(VID_POSITION(0));
+ RR(VID_SIZE(0));
+ RR(VID_ATTRIBUTES(0));
+ RR(VID_FIFO_THRESHOLD(0));
+ RR(VID_ROW_INC(0));
+ RR(VID_PIXEL_INC(0));
+ RR(VID_FIR(0));
+ RR(VID_PICTURE_SIZE(0));
+ RR(VID_ACCU0(0));
+ RR(VID_ACCU1(0));
+
+ RR(VID_FIR_COEF_H(0, 0));
+ RR(VID_FIR_COEF_H(0, 1));
+ RR(VID_FIR_COEF_H(0, 2));
+ RR(VID_FIR_COEF_H(0, 3));
+ RR(VID_FIR_COEF_H(0, 4));
+ RR(VID_FIR_COEF_H(0, 5));
+ RR(VID_FIR_COEF_H(0, 6));
+ RR(VID_FIR_COEF_H(0, 7));
+
+ RR(VID_FIR_COEF_HV(0, 0));
+ RR(VID_FIR_COEF_HV(0, 1));
+ RR(VID_FIR_COEF_HV(0, 2));
+ RR(VID_FIR_COEF_HV(0, 3));
+ RR(VID_FIR_COEF_HV(0, 4));
+ RR(VID_FIR_COEF_HV(0, 5));
+ RR(VID_FIR_COEF_HV(0, 6));
+ RR(VID_FIR_COEF_HV(0, 7));
+
+ RR(VID_CONV_COEF(0, 0));
+ RR(VID_CONV_COEF(0, 1));
+ RR(VID_CONV_COEF(0, 2));
+ RR(VID_CONV_COEF(0, 3));
+ RR(VID_CONV_COEF(0, 4));
+
+ RR(VID_FIR_COEF_V(0, 0));
+ RR(VID_FIR_COEF_V(0, 1));
+ RR(VID_FIR_COEF_V(0, 2));
+ RR(VID_FIR_COEF_V(0, 3));
+ RR(VID_FIR_COEF_V(0, 4));
+ RR(VID_FIR_COEF_V(0, 5));
+ RR(VID_FIR_COEF_V(0, 6));
+ RR(VID_FIR_COEF_V(0, 7));
+
+ RR(VID_PRELOAD(0));
+
+ /* VID2 */
+ RR(VID_BA0(1));
+ RR(VID_BA1(1));
+ RR(VID_POSITION(1));
+ RR(VID_SIZE(1));
+ RR(VID_ATTRIBUTES(1));
+ RR(VID_FIFO_THRESHOLD(1));
+ RR(VID_ROW_INC(1));
+ RR(VID_PIXEL_INC(1));
+ RR(VID_FIR(1));
+ RR(VID_PICTURE_SIZE(1));
+ RR(VID_ACCU0(1));
+ RR(VID_ACCU1(1));
+
+ RR(VID_FIR_COEF_H(1, 0));
+ RR(VID_FIR_COEF_H(1, 1));
+ RR(VID_FIR_COEF_H(1, 2));
+ RR(VID_FIR_COEF_H(1, 3));
+ RR(VID_FIR_COEF_H(1, 4));
+ RR(VID_FIR_COEF_H(1, 5));
+ RR(VID_FIR_COEF_H(1, 6));
+ RR(VID_FIR_COEF_H(1, 7));
+
+ RR(VID_FIR_COEF_HV(1, 0));
+ RR(VID_FIR_COEF_HV(1, 1));
+ RR(VID_FIR_COEF_HV(1, 2));
+ RR(VID_FIR_COEF_HV(1, 3));
+ RR(VID_FIR_COEF_HV(1, 4));
+ RR(VID_FIR_COEF_HV(1, 5));
+ RR(VID_FIR_COEF_HV(1, 6));
+ RR(VID_FIR_COEF_HV(1, 7));
+
+ RR(VID_CONV_COEF(1, 0));
+ RR(VID_CONV_COEF(1, 1));
+ RR(VID_CONV_COEF(1, 2));
+ RR(VID_CONV_COEF(1, 3));
+ RR(VID_CONV_COEF(1, 4));
+
+ RR(VID_FIR_COEF_V(1, 0));
+ RR(VID_FIR_COEF_V(1, 1));
+ RR(VID_FIR_COEF_V(1, 2));
+ RR(VID_FIR_COEF_V(1, 3));
+ RR(VID_FIR_COEF_V(1, 4));
+ RR(VID_FIR_COEF_V(1, 5));
+ RR(VID_FIR_COEF_V(1, 6));
+ RR(VID_FIR_COEF_V(1, 7));
+
+ RR(VID_PRELOAD(1));
+
+ /* enable last, because LCD & DIGIT enable are here */
+ RR(CONTROL);
+}
+
+#undef SR
+#undef RR
+
+static inline void enable_clocks(bool enable)
+{
+ if (enable)
+ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
+ else
+ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
+}
+
+bool dispc_go_busy(enum omap_channel channel)
+{
+ int bit;
+
+ if (channel == OMAP_DSS_CHANNEL_LCD)
+ bit = 5; /* GOLCD */
+ else
+ bit = 6; /* GODIGIT */
+
+ return REG_GET(DISPC_CONTROL, bit, bit) == 1;
+}
+
+void dispc_go(enum omap_channel channel)
+{
+ int bit;
+
+ enable_clocks(1);
+
+ if (channel == OMAP_DSS_CHANNEL_LCD)
+ bit = 0; /* LCDENABLE */
+ else
+ bit = 1; /* DIGITALENABLE */
+
+ /* if the channel is not enabled, we don't need GO */
+ if (REG_GET(DISPC_CONTROL, bit, bit) == 0)
+ goto end;
+
+ if (channel == OMAP_DSS_CHANNEL_LCD)
+ bit = 5; /* GOLCD */
+ else
+ bit = 6; /* GODIGIT */
+
+ if (REG_GET(DISPC_CONTROL, bit, bit) == 1) {
+ DSSERR("GO bit not down for channel %d\n", channel);
+ goto end;
+ }
+
+ DSSDBG("GO %s\n", channel == OMAP_DSS_CHANNEL_LCD ? "LCD" : "DIGIT");
+
+ REG_FLD_MOD(DISPC_CONTROL, 1, bit, bit);
+end:
+ enable_clocks(0);
+}
+
+static void _dispc_write_firh_reg(enum omap_plane plane, int reg, u32 value)
+{
+ BUG_ON(plane == OMAP_DSS_GFX);
+
+ dispc_write_reg(DISPC_VID_FIR_COEF_H(plane-1, reg), value);
+}
+
+static void _dispc_write_firhv_reg(enum omap_plane plane, int reg, u32 value)
+{
+ BUG_ON(plane == OMAP_DSS_GFX);
+
+ dispc_write_reg(DISPC_VID_FIR_COEF_HV(plane-1, reg), value);
+}
+
+static void _dispc_write_firv_reg(enum omap_plane plane, int reg, u32 value)
+{
+ BUG_ON(plane == OMAP_DSS_GFX);
+
+ dispc_write_reg(DISPC_VID_FIR_COEF_V(plane-1, reg), value);
+}
+
+static void _dispc_set_scale_coef(enum omap_plane plane, int hscaleup,
+ int vscaleup, int five_taps)
+{
+ /* Coefficients for horizontal up-sampling */
+ static const u32 coef_hup[8] = {
+ 0x00800000,
+ 0x0D7CF800,
+ 0x1E70F5FF,
+ 0x335FF5FE,
+ 0xF74949F7,
+ 0xF55F33FB,
+ 0xF5701EFE,
+ 0xF87C0DFF,
+ };
+
+ /* Coefficients for horizontal down-sampling */
+ static const u32 coef_hdown[8] = {
+ 0x24382400,
+ 0x28371FFE,
+ 0x2C361BFB,
+ 0x303516F9,
+ 0x11343311,
+ 0x1635300C,
+ 0x1B362C08,
+ 0x1F372804,
+ };
+
+ /* Coefficients for horizontal and vertical up-sampling */
+ static const u32 coef_hvup[2][8] = {
+ {
+ 0x00800000,
+ 0x037B02FF,
+ 0x0C6F05FE,
+ 0x205907FB,
+ 0x00404000,
+ 0x075920FE,
+ 0x056F0CFF,
+ 0x027B0300,
+ },
+ {
+ 0x00800000,
+ 0x0D7CF8FF,
+ 0x1E70F5FE,
+ 0x335FF5FB,
+ 0xF7404000,
+ 0xF55F33FE,
+ 0xF5701EFF,
+ 0xF87C0D00,
+ },
+ };
+
+ /* Coefficients for horizontal and vertical down-sampling */
+ static const u32 coef_hvdown[2][8] = {
+ {
+ 0x24382400,
+ 0x28391F04,
+ 0x2D381B08,
+ 0x3237170C,
+ 0x123737F7,
+ 0x173732F9,
+ 0x1B382DFB,
+ 0x1F3928FE,
+ },
+ {
+ 0x24382400,
+ 0x28371F04,
+ 0x2C361B08,
+ 0x3035160C,
+ 0x113433F7,
+ 0x163530F9,
+ 0x1B362CFB,
+ 0x1F3728FE,
+ },
+ };
+
+ /* Coefficients for vertical up-sampling */
+ static const u32 coef_vup[8] = {
+ 0x00000000,
+ 0x0000FF00,
+ 0x0000FEFF,
+ 0x0000FBFE,
+ 0x000000F7,
+ 0x0000FEFB,
+ 0x0000FFFE,
+ 0x000000FF,
+ };
+
+
+ /* Coefficients for vertical down-sampling */
+ static const u32 coef_vdown[8] = {
+ 0x00000000,
+ 0x000004FE,
+ 0x000008FB,
+ 0x00000CF9,
+ 0x0000F711,
+ 0x0000F90C,
+ 0x0000FB08,
+ 0x0000FE04,
+ };
+
+ const u32 *h_coef;
+ const u32 *hv_coef;
+ const u32 *hv_coef_mod;
+ const u32 *v_coef;
+ int i;
+
+ if (hscaleup)
+ h_coef = coef_hup;
+ else
+ h_coef = coef_hdown;
+
+ if (vscaleup) {
+ hv_coef = coef_hvup[five_taps];
+ v_coef = coef_vup;
+
+ if (hscaleup)
+ hv_coef_mod = NULL;
+ else
+ hv_coef_mod = coef_hvdown[five_taps];
+ } else {
+ hv_coef = coef_hvdown[five_taps];
+ v_coef = coef_vdown;
+
+ if (hscaleup)
+ hv_coef_mod = coef_hvup[five_taps];
+ else
+ hv_coef_mod = NULL;
+ }
+
+ for (i = 0; i < 8; i++) {
+ u32 h, hv;
+
+ h = h_coef[i];
+
+ hv = hv_coef[i];
+
+ if (hv_coef_mod) {
+ hv &= 0xffffff00;
+ hv |= (hv_coef_mod[i] & 0xff);
+ }
+
+ _dispc_write_firh_reg(plane, i, h);
+ _dispc_write_firhv_reg(plane, i, hv);
+ }
+
+ if (!five_taps)
+ return;
+
+ for (i = 0; i < 8; i++) {
+ u32 v;
+ v = v_coef[i];
+ _dispc_write_firv_reg(plane, i, v);
+ }
+}
+
+static void _dispc_setup_color_conv_coef(void)
+{
+ const struct color_conv_coef {
+ int ry, rcr, rcb, gy, gcr, gcb, by, bcr, bcb;
+ int full_range;
+ } ctbl_bt601_5 = {
+ 298, 409, 0, 298, -208, -100, 298, 0, 517, 0,
+ };
+
+ const struct color_conv_coef *ct;
+
+#define CVAL(x, y) (FLD_VAL(x, 26, 16) | FLD_VAL(y, 10, 0))
+
+ ct = &ctbl_bt601_5;
+
+ dispc_write_reg(DISPC_VID_CONV_COEF(0, 0), CVAL(ct->rcr, ct->ry));
+ dispc_write_reg(DISPC_VID_CONV_COEF(0, 1), CVAL(ct->gy, ct->rcb));
+ dispc_write_reg(DISPC_VID_CONV_COEF(0, 2), CVAL(ct->gcb, ct->gcr));
+ dispc_write_reg(DISPC_VID_CONV_COEF(0, 3), CVAL(ct->bcr, ct->by));
+ dispc_write_reg(DISPC_VID_CONV_COEF(0, 4), CVAL(0, ct->bcb));
+
+ dispc_write_reg(DISPC_VID_CONV_COEF(1, 0), CVAL(ct->rcr, ct->ry));
+ dispc_write_reg(DISPC_VID_CONV_COEF(1, 1), CVAL(ct->gy, ct->rcb));
+ dispc_write_reg(DISPC_VID_CONV_COEF(1, 2), CVAL(ct->gcb, ct->gcr));
+ dispc_write_reg(DISPC_VID_CONV_COEF(1, 3), CVAL(ct->bcr, ct->by));
+ dispc_write_reg(DISPC_VID_CONV_COEF(1, 4), CVAL(0, ct->bcb));
+
+#undef CVAL
+
+ REG_FLD_MOD(DISPC_VID_ATTRIBUTES(0), ct->full_range, 11, 11);
+ REG_FLD_MOD(DISPC_VID_ATTRIBUTES(1), ct->full_range, 11, 11);
+}
+
+
+static void _dispc_set_plane_ba0(enum omap_plane plane, u32 paddr)
+{
+ const struct dispc_reg ba0_reg[] = { DISPC_GFX_BA0,
+ DISPC_VID_BA0(0),
+ DISPC_VID_BA0(1) };
+
+ dispc_write_reg(ba0_reg[plane], paddr);
+}
+
+static void _dispc_set_plane_ba1(enum omap_plane plane, u32 paddr)
+{
+ const struct dispc_reg ba1_reg[] = { DISPC_GFX_BA1,
+ DISPC_VID_BA1(0),
+ DISPC_VID_BA1(1) };
+
+ dispc_write_reg(ba1_reg[plane], paddr);
+}
+
+static void _dispc_set_plane_pos(enum omap_plane plane, int x, int y)
+{
+ const struct dispc_reg pos_reg[] = { DISPC_GFX_POSITION,
+ DISPC_VID_POSITION(0),
+ DISPC_VID_POSITION(1) };
+
+ u32 val = FLD_VAL(y, 26, 16) | FLD_VAL(x, 10, 0);
+ dispc_write_reg(pos_reg[plane], val);
+}
+
+static void _dispc_set_pic_size(enum omap_plane plane, int width, int height)
+{
+ const struct dispc_reg siz_reg[] = { DISPC_GFX_SIZE,
+ DISPC_VID_PICTURE_SIZE(0),
+ DISPC_VID_PICTURE_SIZE(1) };
+ u32 val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
+ dispc_write_reg(siz_reg[plane], val);
+}
+
+static void _dispc_set_vid_size(enum omap_plane plane, int width, int height)
+{
+ u32 val;
+ const struct dispc_reg vsi_reg[] = { DISPC_VID_SIZE(0),
+ DISPC_VID_SIZE(1) };
+
+ BUG_ON(plane == OMAP_DSS_GFX);
+
+ val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
+ dispc_write_reg(vsi_reg[plane-1], val);
+}
+
+static void _dispc_setup_global_alpha(enum omap_plane plane, u8 global_alpha)
+{
+
+ BUG_ON(plane == OMAP_DSS_VIDEO1);
+
+ if (cpu_is_omap24xx())
+ return;
+
+ if (plane == OMAP_DSS_GFX)
+ REG_FLD_MOD(DISPC_GLOBAL_ALPHA, global_alpha, 7, 0);
+ else if (plane == OMAP_DSS_VIDEO2)
+ REG_FLD_MOD(DISPC_GLOBAL_ALPHA, global_alpha, 23, 16);
+}
+
+static void _dispc_set_pix_inc(enum omap_plane plane, s32 inc)
+{
+ const struct dispc_reg ri_reg[] = { DISPC_GFX_PIXEL_INC,
+ DISPC_VID_PIXEL_INC(0),
+ DISPC_VID_PIXEL_INC(1) };
+
+ dispc_write_reg(ri_reg[plane], inc);
+}
+
+static void _dispc_set_row_inc(enum omap_plane plane, s32 inc)
+{
+ const struct dispc_reg ri_reg[] = { DISPC_GFX_ROW_INC,
+ DISPC_VID_ROW_INC(0),
+ DISPC_VID_ROW_INC(1) };
+
+ dispc_write_reg(ri_reg[plane], inc);
+}
+
+static void _dispc_set_color_mode(enum omap_plane plane,
+ enum omap_color_mode color_mode)
+{
+ u32 m = 0;
+
+ switch (color_mode) {
+ case OMAP_DSS_COLOR_CLUT1:
+ m = 0x0; break;
+ case OMAP_DSS_COLOR_CLUT2:
+ m = 0x1; break;
+ case OMAP_DSS_COLOR_CLUT4:
+ m = 0x2; break;
+ case OMAP_DSS_COLOR_CLUT8:
+ m = 0x3; break;
+ case OMAP_DSS_COLOR_RGB12U:
+ m = 0x4; break;
+ case OMAP_DSS_COLOR_ARGB16:
+ m = 0x5; break;
+ case OMAP_DSS_COLOR_RGB16:
+ m = 0x6; break;
+ case OMAP_DSS_COLOR_RGB24U:
+ m = 0x8; break;
+ case OMAP_DSS_COLOR_RGB24P:
+ m = 0x9; break;
+ case OMAP_DSS_COLOR_YUV2:
+ m = 0xa; break;
+ case OMAP_DSS_COLOR_UYVY:
+ m = 0xb; break;
+ case OMAP_DSS_COLOR_ARGB32:
+ m = 0xc; break;
+ case OMAP_DSS_COLOR_RGBA32:
+ m = 0xd; break;
+ case OMAP_DSS_COLOR_RGBX32:
+ m = 0xe; break;
+ default:
+ BUG(); break;
+ }
+
+ REG_FLD_MOD(dispc_reg_att[plane], m, 4, 1);
+}
+
+static void _dispc_set_channel_out(enum omap_plane plane,
+ enum omap_channel channel)
+{
+ int shift;
+ u32 val;
+
+ switch (plane) {
+ case OMAP_DSS_GFX:
+ shift = 8;
+ break;
+ case OMAP_DSS_VIDEO1:
+ case OMAP_DSS_VIDEO2:
+ shift = 16;
+ break;
+ default:
+ BUG();
+ return;
+ }
+
+ val = dispc_read_reg(dispc_reg_att[plane]);
+ val = FLD_MOD(val, channel, shift, shift);
+ dispc_write_reg(dispc_reg_att[plane], val);
+}
+
+void dispc_set_burst_size(enum omap_plane plane,
+ enum omap_burst_size burst_size)
+{
+ int shift;
+ u32 val;
+
+ enable_clocks(1);
+
+ switch (plane) {
+ case OMAP_DSS_GFX:
+ shift = 6;
+ break;
+ case OMAP_DSS_VIDEO1:
+ case OMAP_DSS_VIDEO2:
+ shift = 14;
+ break;
+ default:
+ BUG();
+ return;
+ }
+
+ val = dispc_read_reg(dispc_reg_att[plane]);
+ val = FLD_MOD(val, burst_size, shift+1, shift);
+ dispc_write_reg(dispc_reg_att[plane], val);
+
+ enable_clocks(0);
+}
+
+static void _dispc_set_vid_color_conv(enum omap_plane plane, bool enable)
+{
+ u32 val;
+
+ BUG_ON(plane == OMAP_DSS_GFX);
+
+ val = dispc_read_reg(dispc_reg_att[plane]);
+ val = FLD_MOD(val, enable, 9, 9);
+ dispc_write_reg(dispc_reg_att[plane], val);
+}
+
+void dispc_enable_replication(enum omap_plane plane, bool enable)
+{
+ int bit;
+
+ if (plane == OMAP_DSS_GFX)
+ bit = 5;
+ else
+ bit = 10;
+
+ enable_clocks(1);
+ REG_FLD_MOD(dispc_reg_att[plane], enable, bit, bit);
+ enable_clocks(0);
+}
+
+void dispc_set_lcd_size(u16 width, u16 height)
+{
+ u32 val;
+ BUG_ON((width > (1 << 11)) || (height > (1 << 11)));
+ val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
+ enable_clocks(1);
+ dispc_write_reg(DISPC_SIZE_LCD, val);
+ enable_clocks(0);
+}
+
+void dispc_set_digit_size(u16 width, u16 height)
+{
+ u32 val;
+ BUG_ON((width > (1 << 11)) || (height > (1 << 11)));
+ val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
+ enable_clocks(1);
+ dispc_write_reg(DISPC_SIZE_DIG, val);
+ enable_clocks(0);
+}
+
+static void dispc_read_plane_fifo_sizes(void)
+{
+ const struct dispc_reg fsz_reg[] = { DISPC_GFX_FIFO_SIZE_STATUS,
+ DISPC_VID_FIFO_SIZE_STATUS(0),
+ DISPC_VID_FIFO_SIZE_STATUS(1) };
+ u32 size;
+ int plane;
+
+ enable_clocks(1);
+
+ for (plane = 0; plane < ARRAY_SIZE(dispc.fifo_size); ++plane) {
+ if (cpu_is_omap24xx())
+ size = FLD_GET(dispc_read_reg(fsz_reg[plane]), 8, 0);
+ else if (cpu_is_omap34xx())
+ size = FLD_GET(dispc_read_reg(fsz_reg[plane]), 10, 0);
+ else
+ BUG();
+
+ dispc.fifo_size[plane] = size;
+ }
+
+ enable_clocks(0);
+}
+
+u32 dispc_get_plane_fifo_size(enum omap_plane plane)
+{
+ return dispc.fifo_size[plane];
+}
+
+void dispc_setup_plane_fifo(enum omap_plane plane, u32 low, u32 high)
+{
+ const struct dispc_reg ftrs_reg[] = { DISPC_GFX_FIFO_THRESHOLD,
+ DISPC_VID_FIFO_THRESHOLD(0),
+ DISPC_VID_FIFO_THRESHOLD(1) };
+ enable_clocks(1);
+
+ DSSDBG("fifo(%d) low/high old %u/%u, new %u/%u\n",
+ plane,
+ REG_GET(ftrs_reg[plane], 11, 0),
+ REG_GET(ftrs_reg[plane], 27, 16),
+ low, high);
+
+ if (cpu_is_omap24xx())
+ dispc_write_reg(ftrs_reg[plane],
+ FLD_VAL(high, 24, 16) | FLD_VAL(low, 8, 0));
+ else
+ dispc_write_reg(ftrs_reg[plane],
+ FLD_VAL(high, 27, 16) | FLD_VAL(low, 11, 0));
+
+ enable_clocks(0);
+}
+
+void dispc_enable_fifomerge(bool enable)
+{
+ enable_clocks(1);
+
+ DSSDBG("FIFO merge %s\n", enable ? "enabled" : "disabled");
+ REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 14, 14);
+
+ enable_clocks(0);
+}
+
+static void _dispc_set_fir(enum omap_plane plane, int hinc, int vinc)
+{
+ u32 val;
+ const struct dispc_reg fir_reg[] = { DISPC_VID_FIR(0),
+ DISPC_VID_FIR(1) };
+
+ BUG_ON(plane == OMAP_DSS_GFX);
+
+ if (cpu_is_omap24xx())
+ val = FLD_VAL(vinc, 27, 16) | FLD_VAL(hinc, 11, 0);
+ else
+ val = FLD_VAL(vinc, 28, 16) | FLD_VAL(hinc, 12, 0);
+ dispc_write_reg(fir_reg[plane-1], val);
+}
+
+static void _dispc_set_vid_accu0(enum omap_plane plane, int haccu, int vaccu)
+{
+ u32 val;
+ const struct dispc_reg ac0_reg[] = { DISPC_VID_ACCU0(0),
+ DISPC_VID_ACCU0(1) };
+
+ BUG_ON(plane == OMAP_DSS_GFX);
+
+ val = FLD_VAL(vaccu, 25, 16) | FLD_VAL(haccu, 9, 0);
+ dispc_write_reg(ac0_reg[plane-1], val);
+}
+
+static void _dispc_set_vid_accu1(enum omap_plane plane, int haccu, int vaccu)
+{
+ u32 val;
+ const struct dispc_reg ac1_reg[] = { DISPC_VID_ACCU1(0),
+ DISPC_VID_ACCU1(1) };
+
+ BUG_ON(plane == OMAP_DSS_GFX);
+
+ val = FLD_VAL(vaccu, 25, 16) | FLD_VAL(haccu, 9, 0);
+ dispc_write_reg(ac1_reg[plane-1], val);
+}
+
+
+static void _dispc_set_scaling(enum omap_plane plane,
+ u16 orig_width, u16 orig_height,
+ u16 out_width, u16 out_height,
+ bool ilace, bool five_taps,
+ bool fieldmode)
+{
+ int fir_hinc;
+ int fir_vinc;
+ int hscaleup, vscaleup;
+ int accu0 = 0;
+ int accu1 = 0;
+ u32 l;
+
+ BUG_ON(plane == OMAP_DSS_GFX);
+
+ hscaleup = orig_width <= out_width;
+ vscaleup = orig_height <= out_height;
+
+ _dispc_set_scale_coef(plane, hscaleup, vscaleup, five_taps);
+
+ if (!orig_width || orig_width == out_width)
+ fir_hinc = 0;
+ else
+ fir_hinc = 1024 * orig_width / out_width;
+
+ if (!orig_height || orig_height == out_height)
+ fir_vinc = 0;
+ else
+ fir_vinc = 1024 * orig_height / out_height;
+
+ _dispc_set_fir(plane, fir_hinc, fir_vinc);
+
+ l = dispc_read_reg(dispc_reg_att[plane]);
+ l &= ~((0x0f << 5) | (0x3 << 21));
+
+ l |= fir_hinc ? (1 << 5) : 0;
+ l |= fir_vinc ? (1 << 6) : 0;
+
+ l |= hscaleup ? 0 : (1 << 7);
+ l |= vscaleup ? 0 : (1 << 8);
+
+ l |= five_taps ? (1 << 21) : 0;
+ l |= five_taps ? (1 << 22) : 0;
+
+ dispc_write_reg(dispc_reg_att[plane], l);
+
+ /*
+ * field 0 = even field = bottom field
+ * field 1 = odd field = top field
+ */
+ if (ilace && !fieldmode) {
+ accu1 = 0;
+ accu0 = (fir_vinc / 2) & 0x3ff;
+ if (accu0 >= 1024/2) {
+ accu1 = 1024/2;
+ accu0 -= accu1;
+ }
+ }
+
+ _dispc_set_vid_accu0(plane, 0, accu0);
+ _dispc_set_vid_accu1(plane, 0, accu1);
+}
+
+static void _dispc_set_rotation_attrs(enum omap_plane plane, u8 rotation,
+ bool mirroring, enum omap_color_mode color_mode)
+{
+ if (color_mode == OMAP_DSS_COLOR_YUV2 ||
+ color_mode == OMAP_DSS_COLOR_UYVY) {
+ int vidrot = 0;
+
+ if (mirroring) {
+ switch (rotation) {
+ case OMAP_DSS_ROT_0:
+ vidrot = 2;
+ break;
+ case OMAP_DSS_ROT_90:
+ vidrot = 1;
+ break;
+ case OMAP_DSS_ROT_180:
+ vidrot = 0;
+ break;
+ case OMAP_DSS_ROT_270:
+ vidrot = 3;
+ break;
+ }
+ } else {
+ switch (rotation) {
+ case OMAP_DSS_ROT_0:
+ vidrot = 0;
+ break;
+ case OMAP_DSS_ROT_90:
+ vidrot = 1;
+ break;
+ case OMAP_DSS_ROT_180:
+ vidrot = 2;
+ break;
+ case OMAP_DSS_ROT_270:
+ vidrot = 3;
+ break;
+ }
+ }
+
+ REG_FLD_MOD(dispc_reg_att[plane], vidrot, 13, 12);
+
+ if (rotation == OMAP_DSS_ROT_90 || rotation == OMAP_DSS_ROT_270)
+ REG_FLD_MOD(dispc_reg_att[plane], 0x1, 18, 18);
+ else
+ REG_FLD_MOD(dispc_reg_att[plane], 0x0, 18, 18);
+ } else {
+ REG_FLD_MOD(dispc_reg_att[plane], 0, 13, 12);
+ REG_FLD_MOD(dispc_reg_att[plane], 0, 18, 18);
+ }
+}
+
+static int color_mode_to_bpp(enum omap_color_mode color_mode)
+{
+ switch (color_mode) {
+ case OMAP_DSS_COLOR_CLUT1:
+ return 1;
+ case OMAP_DSS_COLOR_CLUT2:
+ return 2;
+ case OMAP_DSS_COLOR_CLUT4:
+ return 4;
+ case OMAP_DSS_COLOR_CLUT8:
+ return 8;
+ case OMAP_DSS_COLOR_RGB12U:
+ case OMAP_DSS_COLOR_RGB16:
+ case OMAP_DSS_COLOR_ARGB16:
+ case OMAP_DSS_COLOR_YUV2:
+ case OMAP_DSS_COLOR_UYVY:
+ return 16;
+ case OMAP_DSS_COLOR_RGB24P:
+ return 24;
+ case OMAP_DSS_COLOR_RGB24U:
+ case OMAP_DSS_COLOR_ARGB32:
+ case OMAP_DSS_COLOR_RGBA32:
+ case OMAP_DSS_COLOR_RGBX32:
+ return 32;
+ default:
+ BUG();
+ }
+}
+
+static s32 pixinc(int pixels, u8 ps)
+{
+ if (pixels == 1)
+ return 1;
+ else if (pixels > 1)
+ return 1 + (pixels - 1) * ps;
+ else if (pixels < 0)
+ return 1 - (-pixels + 1) * ps;
+ else
+ BUG();
+}
+
+static void calc_vrfb_rotation_offset(u8 rotation, bool mirror,
+ u16 screen_width,
+ u16 width, u16 height,
+ enum omap_color_mode color_mode, bool fieldmode,
+ unsigned int field_offset,
+ unsigned *offset0, unsigned *offset1,
+ s32 *row_inc, s32 *pix_inc)
+{
+ u8 ps;
+
+ /* FIXME CLUT formats */
+ switch (color_mode) {
+ case OMAP_DSS_COLOR_CLUT1:
+ case OMAP_DSS_COLOR_CLUT2:
+ case OMAP_DSS_COLOR_CLUT4:
+ case OMAP_DSS_COLOR_CLUT8:
+ BUG();
+ return;
+ case OMAP_DSS_COLOR_YUV2:
+ case OMAP_DSS_COLOR_UYVY:
+ ps = 4;
+ break;
+ default:
+ ps = color_mode_to_bpp(color_mode) / 8;
+ break;
+ }
+
+ DSSDBG("calc_rot(%d): scrw %d, %dx%d\n", rotation, screen_width,
+ width, height);
+
+ /*
+ * field 0 = even field = bottom field
+ * field 1 = odd field = top field
+ */
+ switch (rotation + mirror * 4) {
+ case OMAP_DSS_ROT_0:
+ case OMAP_DSS_ROT_180:
+ /*
+ * If the pixel format is YUV or UYVY divide the width
+ * of the image by 2 for 0 and 180 degree rotation.
+ */
+ if (color_mode == OMAP_DSS_COLOR_YUV2 ||
+ color_mode == OMAP_DSS_COLOR_UYVY)
+ width = width >> 1;
+ case OMAP_DSS_ROT_90:
+ case OMAP_DSS_ROT_270:
+ *offset1 = 0;
+ if (field_offset)
+ *offset0 = field_offset * screen_width * ps;
+ else
+ *offset0 = 0;
+
+ *row_inc = pixinc(1 + (screen_width - width) +
+ (fieldmode ? screen_width : 0),
+ ps);
+ *pix_inc = pixinc(1, ps);
+ break;
+
+ case OMAP_DSS_ROT_0 + 4:
+ case OMAP_DSS_ROT_180 + 4:
+ /* If the pixel format is YUV or UYVY divide the width
+ * of the image by 2 for 0 degree and 180 degree
+ */
+ if (color_mode == OMAP_DSS_COLOR_YUV2 ||
+ color_mode == OMAP_DSS_COLOR_UYVY)
+ width = width >> 1;
+ case OMAP_DSS_ROT_90 + 4:
+ case OMAP_DSS_ROT_270 + 4:
+ *offset1 = 0;
+ if (field_offset)
+ *offset0 = field_offset * screen_width * ps;
+ else
+ *offset0 = 0;
+ *row_inc = pixinc(1 - (screen_width + width) -
+ (fieldmode ? screen_width : 0),
+ ps);
+ *pix_inc = pixinc(1, ps);
+ break;
+
+ default:
+ BUG();
+ }
+}
+
+static void calc_dma_rotation_offset(u8 rotation, bool mirror,
+ u16 screen_width,
+ u16 width, u16 height,
+ enum omap_color_mode color_mode, bool fieldmode,
+ unsigned int field_offset,
+ unsigned *offset0, unsigned *offset1,
+ s32 *row_inc, s32 *pix_inc)
+{
+ u8 ps;
+ u16 fbw, fbh;
+
+ /* FIXME CLUT formats */
+ switch (color_mode) {
+ case OMAP_DSS_COLOR_CLUT1:
+ case OMAP_DSS_COLOR_CLUT2:
+ case OMAP_DSS_COLOR_CLUT4:
+ case OMAP_DSS_COLOR_CLUT8:
+ BUG();
+ return;
+ default:
+ ps = color_mode_to_bpp(color_mode) / 8;
+ break;
+ }
+
+ DSSDBG("calc_rot(%d): scrw %d, %dx%d\n", rotation, screen_width,
+ width, height);
+
+ /* width & height are overlay sizes, convert to fb sizes */
+
+ if (rotation == OMAP_DSS_ROT_0 || rotation == OMAP_DSS_ROT_180) {
+ fbw = width;
+ fbh = height;
+ } else {
+ fbw = height;
+ fbh = width;
+ }
+
+ /*
+ * field 0 = even field = bottom field
+ * field 1 = odd field = top field
+ */
+ switch (rotation + mirror * 4) {
+ case OMAP_DSS_ROT_0:
+ *offset1 = 0;
+ if (field_offset)
+ *offset0 = *offset1 + field_offset * screen_width * ps;
+ else
+ *offset0 = *offset1;
+ *row_inc = pixinc(1 + (screen_width - fbw) +
+ (fieldmode ? screen_width : 0),
+ ps);
+ *pix_inc = pixinc(1, ps);
+ break;
+ case OMAP_DSS_ROT_90:
+ *offset1 = screen_width * (fbh - 1) * ps;
+ if (field_offset)
+ *offset0 = *offset1 + field_offset * ps;
+ else
+ *offset0 = *offset1;
+ *row_inc = pixinc(screen_width * (fbh - 1) + 1 +
+ (fieldmode ? 1 : 0), ps);
+ *pix_inc = pixinc(-screen_width, ps);
+ break;
+ case OMAP_DSS_ROT_180:
+ *offset1 = (screen_width * (fbh - 1) + fbw - 1) * ps;
+ if (field_offset)
+ *offset0 = *offset1 - field_offset * screen_width * ps;
+ else
+ *offset0 = *offset1;
+ *row_inc = pixinc(-1 -
+ (screen_width - fbw) -
+ (fieldmode ? screen_width : 0),
+ ps);
+ *pix_inc = pixinc(-1, ps);
+ break;
+ case OMAP_DSS_ROT_270:
+ *offset1 = (fbw - 1) * ps;
+ if (field_offset)
+ *offset0 = *offset1 - field_offset * ps;
+ else
+ *offset0 = *offset1;
+ *row_inc = pixinc(-screen_width * (fbh - 1) - 1 -
+ (fieldmode ? 1 : 0), ps);
+ *pix_inc = pixinc(screen_width, ps);
+ break;
+
+ /* mirroring */
+ case OMAP_DSS_ROT_0 + 4:
+ *offset1 = (fbw - 1) * ps;
+ if (field_offset)
+ *offset0 = *offset1 + field_offset * screen_width * ps;
+ else
+ *offset0 = *offset1;
+ *row_inc = pixinc(screen_width * 2 - 1 +
+ (fieldmode ? screen_width : 0),
+ ps);
+ *pix_inc = pixinc(-1, ps);
+ break;
+
+ case OMAP_DSS_ROT_90 + 4:
+ *offset1 = 0;
+ if (field_offset)
+ *offset0 = *offset1 + field_offset * ps;
+ else
+ *offset0 = *offset1;
+ *row_inc = pixinc(-screen_width * (fbh - 1) + 1 +
+ (fieldmode ? 1 : 0),
+ ps);
+ *pix_inc = pixinc(screen_width, ps);
+ break;
+
+ case OMAP_DSS_ROT_180 + 4:
+ *offset1 = screen_width * (fbh - 1) * ps;
+ if (field_offset)
+ *offset0 = *offset1 - field_offset * screen_width * ps;
+ else
+ *offset0 = *offset1;
+ *row_inc = pixinc(1 - screen_width * 2 -
+ (fieldmode ? screen_width : 0),
+ ps);
+ *pix_inc = pixinc(1, ps);
+ break;
+
+ case OMAP_DSS_ROT_270 + 4:
+ *offset1 = (screen_width * (fbh - 1) + fbw - 1) * ps;
+ if (field_offset)
+ *offset0 = *offset1 - field_offset * ps;
+ else
+ *offset0 = *offset1;
+ *row_inc = pixinc(screen_width * (fbh - 1) - 1 -
+ (fieldmode ? 1 : 0),
+ ps);
+ *pix_inc = pixinc(-screen_width, ps);
+ break;
+
+ default:
+ BUG();
+ }
+}
+
+static unsigned long calc_fclk_five_taps(u16 width, u16 height,
+ u16 out_width, u16 out_height, enum omap_color_mode color_mode)
+{
+ u32 fclk = 0;
+ /* FIXME venc pclk? */
+ u64 tmp, pclk = dispc_pclk_rate();
+
+ if (height > out_height) {
+ /* FIXME get real display PPL */
+ unsigned int ppl = 800;
+
+ tmp = pclk * height * out_width;
+ do_div(tmp, 2 * out_height * ppl);
+ fclk = tmp;
+
+ if (height > 2 * out_height && ppl != out_width) {
+ tmp = pclk * (height - 2 * out_height) * out_width;
+ do_div(tmp, 2 * out_height * (ppl - out_width));
+ fclk = max(fclk, (u32) tmp);
+ }
+ }
+
+ if (width > out_width) {
+ tmp = pclk * width;
+ do_div(tmp, out_width);
+ fclk = max(fclk, (u32) tmp);
+
+ if (color_mode == OMAP_DSS_COLOR_RGB24U)
+ fclk <<= 1;
+ }
+
+ return fclk;
+}
+
+static unsigned long calc_fclk(u16 width, u16 height,
+ u16 out_width, u16 out_height)
+{
+ unsigned int hf, vf;
+
+ /*
+ * FIXME how to determine the 'A' factor
+ * for the no downscaling case ?
+ */
+
+ if (width > 3 * out_width)
+ hf = 4;
+ else if (width > 2 * out_width)
+ hf = 3;
+ else if (width > out_width)
+ hf = 2;
+ else
+ hf = 1;
+
+ if (height > out_height)
+ vf = 2;
+ else
+ vf = 1;
+
+ /* FIXME venc pclk? */
+ return dispc_pclk_rate() * vf * hf;
+}
+
+void dispc_set_channel_out(enum omap_plane plane, enum omap_channel channel_out)
+{
+ enable_clocks(1);
+ _dispc_set_channel_out(plane, channel_out);
+ enable_clocks(0);
+}
+
+static int _dispc_setup_plane(enum omap_plane plane,
+ u32 paddr, u16 screen_width,
+ u16 pos_x, u16 pos_y,
+ u16 width, u16 height,
+ u16 out_width, u16 out_height,
+ enum omap_color_mode color_mode,
+ bool ilace,
+ enum omap_dss_rotation_type rotation_type,
+ u8 rotation, int mirror,
+ u8 global_alpha)
+{
+ const int maxdownscale = cpu_is_omap34xx() ? 4 : 2;
+ bool five_taps = 0;
+ bool fieldmode = 0;
+ int cconv = 0;
+ unsigned offset0, offset1;
+ s32 row_inc;
+ s32 pix_inc;
+ u16 frame_height = height;
+ unsigned int field_offset = 0;
+
+ if (paddr == 0)
+ return -EINVAL;
+
+ if (ilace && height == out_height)
+ fieldmode = 1;
+
+ if (ilace) {
+ if (fieldmode)
+ height /= 2;
+ pos_y /= 2;
+ out_height /= 2;
+
+ DSSDBG("adjusting for ilace: height %d, pos_y %d, "
+ "out_height %d\n",
+ height, pos_y, out_height);
+ }
+
+ if (plane == OMAP_DSS_GFX) {
+ if (width != out_width || height != out_height)
+ return -EINVAL;
+
+ switch (color_mode) {
+ case OMAP_DSS_COLOR_ARGB16:
+ case OMAP_DSS_COLOR_ARGB32:
+ case OMAP_DSS_COLOR_RGBA32:
+ case OMAP_DSS_COLOR_RGBX32:
+ if (cpu_is_omap24xx())
+ return -EINVAL;
+ /* fall through */
+ case OMAP_DSS_COLOR_RGB12U:
+ case OMAP_DSS_COLOR_RGB16:
+ case OMAP_DSS_COLOR_RGB24P:
+ case OMAP_DSS_COLOR_RGB24U:
+ break;
+
+ default:
+ return -EINVAL;
+ }
+ } else {
+ /* video plane */
+
+ unsigned long fclk = 0;
+
+ if (out_width < width / maxdownscale ||
+ out_width > width * 8)
+ return -EINVAL;
+
+ if (out_height < height / maxdownscale ||
+ out_height > height * 8)
+ return -EINVAL;
+
+ switch (color_mode) {
+ case OMAP_DSS_COLOR_RGBX32:
+ case OMAP_DSS_COLOR_RGB12U:
+ if (cpu_is_omap24xx())
+ return -EINVAL;
+ /* fall through */
+ case OMAP_DSS_COLOR_RGB16:
+ case OMAP_DSS_COLOR_RGB24P:
+ case OMAP_DSS_COLOR_RGB24U:
+ break;
+
+ case OMAP_DSS_COLOR_ARGB16:
+ case OMAP_DSS_COLOR_ARGB32:
+ case OMAP_DSS_COLOR_RGBA32:
+ if (cpu_is_omap24xx())
+ return -EINVAL;
+ if (plane == OMAP_DSS_VIDEO1)
+ return -EINVAL;
+ break;
+
+ case OMAP_DSS_COLOR_YUV2:
+ case OMAP_DSS_COLOR_UYVY:
+ cconv = 1;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ /* Must use 5-tap filter? */
+ five_taps = height > out_height * 2;
+
+ if (!five_taps) {
+ fclk = calc_fclk(width, height,
+ out_width, out_height);
+
+ /* Try 5-tap filter if 3-tap fclk is too high */
+ if (cpu_is_omap34xx() && height > out_height &&
+ fclk > dispc_fclk_rate())
+ five_taps = true;
+ }
+
+ if (width > (2048 >> five_taps)) {
+ DSSERR("failed to set up scaling, fclk too low\n");
+ return -EINVAL;
+ }
+
+ if (five_taps)
+ fclk = calc_fclk_five_taps(width, height,
+ out_width, out_height, color_mode);
+
+ DSSDBG("required fclk rate = %lu Hz\n", fclk);
+ DSSDBG("current fclk rate = %lu Hz\n", dispc_fclk_rate());
+
+ if (fclk > dispc_fclk_rate()) {
+ DSSERR("failed to set up scaling, "
+ "required fclk rate = %lu Hz, "
+ "current fclk rate = %lu Hz\n",
+ fclk, dispc_fclk_rate());
+ return -EINVAL;
+ }
+ }
+
+ if (ilace && !fieldmode) {
+ /*
+ * when downscaling the bottom field may have to start several
+ * source lines below the top field. Unfortunately ACCUI
+ * registers will only hold the fractional part of the offset
+ * so the integer part must be added to the base address of the
+ * bottom field.
+ */
+ if (!height || height == out_height)
+ field_offset = 0;
+ else
+ field_offset = height / out_height / 2;
+ }
+
+ /* Fields are independent but interleaved in memory. */
+ if (fieldmode)
+ field_offset = 1;
+
+ if (rotation_type == OMAP_DSS_ROT_DMA)
+ calc_dma_rotation_offset(rotation, mirror,
+ screen_width, width, frame_height, color_mode,
+ fieldmode, field_offset,
+ &offset0, &offset1, &row_inc, &pix_inc);
+ else
+ calc_vrfb_rotation_offset(rotation, mirror,
+ screen_width, width, frame_height, color_mode,
+ fieldmode, field_offset,
+ &offset0, &offset1, &row_inc, &pix_inc);
+
+ DSSDBG("offset0 %u, offset1 %u, row_inc %d, pix_inc %d\n",
+ offset0, offset1, row_inc, pix_inc);
+
+ _dispc_set_color_mode(plane, color_mode);
+
+ _dispc_set_plane_ba0(plane, paddr + offset0);
+ _dispc_set_plane_ba1(plane, paddr + offset1);
+
+ _dispc_set_row_inc(plane, row_inc);
+ _dispc_set_pix_inc(plane, pix_inc);
+
+ DSSDBG("%d,%d %dx%d -> %dx%d\n", pos_x, pos_y, width, height,
+ out_width, out_height);
+
+ _dispc_set_plane_pos(plane, pos_x, pos_y);
+
+ _dispc_set_pic_size(plane, width, height);
+
+ if (plane != OMAP_DSS_GFX) {
+ _dispc_set_scaling(plane, width, height,
+ out_width, out_height,
+ ilace, five_taps, fieldmode);
+ _dispc_set_vid_size(plane, out_width, out_height);
+ _dispc_set_vid_color_conv(plane, cconv);
+ }
+
+ _dispc_set_rotation_attrs(plane, rotation, mirror, color_mode);
+
+ if (plane != OMAP_DSS_VIDEO1)
+ _dispc_setup_global_alpha(plane, global_alpha);
+
+ return 0;
+}
+
+static void _dispc_enable_plane(enum omap_plane plane, bool enable)
+{
+ REG_FLD_MOD(dispc_reg_att[plane], enable ? 1 : 0, 0, 0);
+}
+
+static void dispc_disable_isr(void *data, u32 mask)
+{
+ struct completion *compl = data;
+ complete(compl);
+}
+
+static void _enable_lcd_out(bool enable)
+{
+ REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 0, 0);
+}
+
+void dispc_enable_lcd_out(bool enable)
+{
+ struct completion frame_done_completion;
+ bool is_on;
+ int r;
+
+ enable_clocks(1);
+
+ /* When we disable LCD output, we need to wait until frame is done.
+ * Otherwise the DSS is still working, and turning off the clocks
+ * prevents DSS from going to OFF mode */
+ is_on = REG_GET(DISPC_CONTROL, 0, 0);
+
+ if (!enable && is_on) {
+ init_completion(&frame_done_completion);
+
+ r = omap_dispc_register_isr(dispc_disable_isr,
+ &frame_done_completion,
+ DISPC_IRQ_FRAMEDONE);
+
+ if (r)
+ DSSERR("failed to register FRAMEDONE isr\n");
+ }
+
+ _enable_lcd_out(enable);
+
+ if (!enable && is_on) {
+ if (!wait_for_completion_timeout(&frame_done_completion,
+ msecs_to_jiffies(100)))
+ DSSERR("timeout waiting for FRAME DONE\n");
+
+ r = omap_dispc_unregister_isr(dispc_disable_isr,
+ &frame_done_completion,
+ DISPC_IRQ_FRAMEDONE);
+
+ if (r)
+ DSSERR("failed to unregister FRAMEDONE isr\n");
+ }
+
+ enable_clocks(0);
+}
+
+static void _enable_digit_out(bool enable)
+{
+ REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 1, 1);
+}
+
+void dispc_enable_digit_out(bool enable)
+{
+ struct completion frame_done_completion;
+ int r;
+
+ enable_clocks(1);
+
+ if (REG_GET(DISPC_CONTROL, 1, 1) == enable) {
+ enable_clocks(0);
+ return;
+ }
+
+ if (enable) {
+ unsigned long flags;
+ /* When we enable digit output, we'll get an extra digit
+ * sync lost interrupt, that we need to ignore */
+ spin_lock_irqsave(&dispc.irq_lock, flags);
+ dispc.irq_error_mask &= ~DISPC_IRQ_SYNC_LOST_DIGIT;
+ _omap_dispc_set_irqs();
+ spin_unlock_irqrestore(&dispc.irq_lock, flags);
+ }
+
+ /* When we disable digit output, we need to wait until fields are done.
+ * Otherwise the DSS is still working, and turning off the clocks
+ * prevents DSS from going to OFF mode. And when enabling, we need to
+ * wait for the extra sync losts */
+ init_completion(&frame_done_completion);
+
+ r = omap_dispc_register_isr(dispc_disable_isr, &frame_done_completion,
+ DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD);
+ if (r)
+ DSSERR("failed to register EVSYNC isr\n");
+
+ _enable_digit_out(enable);
+
+ /* XXX I understand from TRM that we should only wait for the
+ * current field to complete. But it seems we have to wait
+ * for both fields */
+ if (!wait_for_completion_timeout(&frame_done_completion,
+ msecs_to_jiffies(100)))
+ DSSERR("timeout waiting for EVSYNC\n");
+
+ if (!wait_for_completion_timeout(&frame_done_completion,
+ msecs_to_jiffies(100)))
+ DSSERR("timeout waiting for EVSYNC\n");
+
+ r = omap_dispc_unregister_isr(dispc_disable_isr,
+ &frame_done_completion,
+ DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD);
+ if (r)
+ DSSERR("failed to unregister EVSYNC isr\n");
+
+ if (enable) {
+ unsigned long flags;
+ spin_lock_irqsave(&dispc.irq_lock, flags);
+ dispc.irq_error_mask = DISPC_IRQ_MASK_ERROR;
+ dispc_write_reg(DISPC_IRQSTATUS, DISPC_IRQ_SYNC_LOST_DIGIT);
+ _omap_dispc_set_irqs();
+ spin_unlock_irqrestore(&dispc.irq_lock, flags);
+ }
+
+ enable_clocks(0);
+}
+
+void dispc_lcd_enable_signal_polarity(bool act_high)
+{
+ enable_clocks(1);
+ REG_FLD_MOD(DISPC_CONTROL, act_high ? 1 : 0, 29, 29);
+ enable_clocks(0);
+}
+
+void dispc_lcd_enable_signal(bool enable)
+{
+ enable_clocks(1);
+ REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 28, 28);
+ enable_clocks(0);
+}
+
+void dispc_pck_free_enable(bool enable)
+{
+ enable_clocks(1);
+ REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 27, 27);
+ enable_clocks(0);
+}
+
+void dispc_enable_fifohandcheck(bool enable)
+{
+ enable_clocks(1);
+ REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 16, 16);
+ enable_clocks(0);
+}
+
+
+void dispc_set_lcd_display_type(enum omap_lcd_display_type type)
+{
+ int mode;
+
+ switch (type) {
+ case OMAP_DSS_LCD_DISPLAY_STN:
+ mode = 0;
+ break;
+
+ case OMAP_DSS_LCD_DISPLAY_TFT:
+ mode = 1;
+ break;
+
+ default:
+ BUG();
+ return;
+ }
+
+ enable_clocks(1);
+ REG_FLD_MOD(DISPC_CONTROL, mode, 3, 3);
+ enable_clocks(0);
+}
+
+void dispc_set_loadmode(enum omap_dss_load_mode mode)
+{
+ enable_clocks(1);
+ REG_FLD_MOD(DISPC_CONFIG, mode, 2, 1);
+ enable_clocks(0);
+}
+
+
+void dispc_set_default_color(enum omap_channel channel, u32 color)
+{
+ const struct dispc_reg def_reg[] = { DISPC_DEFAULT_COLOR0,
+ DISPC_DEFAULT_COLOR1 };
+
+ enable_clocks(1);
+ dispc_write_reg(def_reg[channel], color);
+ enable_clocks(0);
+}
+
+u32 dispc_get_default_color(enum omap_channel channel)
+{
+ const struct dispc_reg def_reg[] = { DISPC_DEFAULT_COLOR0,
+ DISPC_DEFAULT_COLOR1 };
+ u32 l;
+
+ BUG_ON(channel != OMAP_DSS_CHANNEL_DIGIT &&
+ channel != OMAP_DSS_CHANNEL_LCD);
+
+ enable_clocks(1);
+ l = dispc_read_reg(def_reg[channel]);
+ enable_clocks(0);
+
+ return l;
+}
+
+void dispc_set_trans_key(enum omap_channel ch,
+ enum omap_dss_trans_key_type type,
+ u32 trans_key)
+{
+ const struct dispc_reg tr_reg[] = {
+ DISPC_TRANS_COLOR0, DISPC_TRANS_COLOR1 };
+
+ enable_clocks(1);
+ if (ch == OMAP_DSS_CHANNEL_LCD)
+ REG_FLD_MOD(DISPC_CONFIG, type, 11, 11);
+ else /* OMAP_DSS_CHANNEL_DIGIT */
+ REG_FLD_MOD(DISPC_CONFIG, type, 13, 13);
+
+ dispc_write_reg(tr_reg[ch], trans_key);
+ enable_clocks(0);
+}
+
+void dispc_get_trans_key(enum omap_channel ch,
+ enum omap_dss_trans_key_type *type,
+ u32 *trans_key)
+{
+ const struct dispc_reg tr_reg[] = {
+ DISPC_TRANS_COLOR0, DISPC_TRANS_COLOR1 };
+
+ enable_clocks(1);
+ if (type) {
+ if (ch == OMAP_DSS_CHANNEL_LCD)
+ *type = REG_GET(DISPC_CONFIG, 11, 11);
+ else if (ch == OMAP_DSS_CHANNEL_DIGIT)
+ *type = REG_GET(DISPC_CONFIG, 13, 13);
+ else
+ BUG();
+ }
+
+ if (trans_key)
+ *trans_key = dispc_read_reg(tr_reg[ch]);
+ enable_clocks(0);
+}
+
+void dispc_enable_trans_key(enum omap_channel ch, bool enable)
+{
+ enable_clocks(1);
+ if (ch == OMAP_DSS_CHANNEL_LCD)
+ REG_FLD_MOD(DISPC_CONFIG, enable, 10, 10);
+ else /* OMAP_DSS_CHANNEL_DIGIT */
+ REG_FLD_MOD(DISPC_CONFIG, enable, 12, 12);
+ enable_clocks(0);
+}
+void dispc_enable_alpha_blending(enum omap_channel ch, bool enable)
+{
+ if (cpu_is_omap24xx())
+ return;
+
+ enable_clocks(1);
+ if (ch == OMAP_DSS_CHANNEL_LCD)
+ REG_FLD_MOD(DISPC_CONFIG, enable, 18, 18);
+ else /* OMAP_DSS_CHANNEL_DIGIT */
+ REG_FLD_MOD(DISPC_CONFIG, enable, 19, 19);
+ enable_clocks(0);
+}
+bool dispc_alpha_blending_enabled(enum omap_channel ch)
+{
+ bool enabled;
+
+ if (cpu_is_omap24xx())
+ return false;
+
+ enable_clocks(1);
+ if (ch == OMAP_DSS_CHANNEL_LCD)
+ enabled = REG_GET(DISPC_CONFIG, 18, 18);
+ else if (ch == OMAP_DSS_CHANNEL_DIGIT)
+ enabled = REG_GET(DISPC_CONFIG, 18, 18);
+ else
+ BUG();
+ enable_clocks(0);
+
+ return enabled;
+
+}
+
+
+bool dispc_trans_key_enabled(enum omap_channel ch)
+{
+ bool enabled;
+
+ enable_clocks(1);
+ if (ch == OMAP_DSS_CHANNEL_LCD)
+ enabled = REG_GET(DISPC_CONFIG, 10, 10);
+ else if (ch == OMAP_DSS_CHANNEL_DIGIT)
+ enabled = REG_GET(DISPC_CONFIG, 12, 12);
+ else
+ BUG();
+ enable_clocks(0);
+
+ return enabled;
+}
+
+
+void dispc_set_tft_data_lines(u8 data_lines)
+{
+ int code;
+
+ switch (data_lines) {
+ case 12:
+ code = 0;
+ break;
+ case 16:
+ code = 1;
+ break;
+ case 18:
+ code = 2;
+ break;
+ case 24:
+ code = 3;
+ break;
+ default:
+ BUG();
+ return;
+ }
+
+ enable_clocks(1);
+ REG_FLD_MOD(DISPC_CONTROL, code, 9, 8);
+ enable_clocks(0);
+}
+
+void dispc_set_parallel_interface_mode(enum omap_parallel_interface_mode mode)
+{
+ u32 l;
+ int stallmode;
+ int gpout0 = 1;
+ int gpout1;
+
+ switch (mode) {
+ case OMAP_DSS_PARALLELMODE_BYPASS:
+ stallmode = 0;
+ gpout1 = 1;
+ break;
+
+ case OMAP_DSS_PARALLELMODE_RFBI:
+ stallmode = 1;
+ gpout1 = 0;
+ break;
+
+ case OMAP_DSS_PARALLELMODE_DSI:
+ stallmode = 1;
+ gpout1 = 1;
+ break;
+
+ default:
+ BUG();
+ return;
+ }
+
+ enable_clocks(1);
+
+ l = dispc_read_reg(DISPC_CONTROL);
+
+ l = FLD_MOD(l, stallmode, 11, 11);
+ l = FLD_MOD(l, gpout0, 15, 15);
+ l = FLD_MOD(l, gpout1, 16, 16);
+
+ dispc_write_reg(DISPC_CONTROL, l);
+
+ enable_clocks(0);
+}
+
+static bool _dispc_lcd_timings_ok(int hsw, int hfp, int hbp,
+ int vsw, int vfp, int vbp)
+{
+ if (cpu_is_omap24xx() || omap_rev() < OMAP3430_REV_ES3_0) {
+ if (hsw < 1 || hsw > 64 ||
+ hfp < 1 || hfp > 256 ||
+ hbp < 1 || hbp > 256 ||
+ vsw < 1 || vsw > 64 ||
+ vfp < 0 || vfp > 255 ||
+ vbp < 0 || vbp > 255)
+ return false;
+ } else {
+ if (hsw < 1 || hsw > 256 ||
+ hfp < 1 || hfp > 4096 ||
+ hbp < 1 || hbp > 4096 ||
+ vsw < 1 || vsw > 256 ||
+ vfp < 0 || vfp > 4095 ||
+ vbp < 0 || vbp > 4095)
+ return false;
+ }
+
+ return true;
+}
+
+bool dispc_lcd_timings_ok(struct omap_video_timings *timings)
+{
+ return _dispc_lcd_timings_ok(timings->hsw, timings->hfp,
+ timings->hbp, timings->vsw,
+ timings->vfp, timings->vbp);
+}
+
+static void _dispc_set_lcd_timings(int hsw, int hfp, int hbp,
+ int vsw, int vfp, int vbp)
+{
+ u32 timing_h, timing_v;
+
+ if (cpu_is_omap24xx() || omap_rev() < OMAP3430_REV_ES3_0) {
+ timing_h = FLD_VAL(hsw-1, 5, 0) | FLD_VAL(hfp-1, 15, 8) |
+ FLD_VAL(hbp-1, 27, 20);
+
+ timing_v = FLD_VAL(vsw-1, 5, 0) | FLD_VAL(vfp, 15, 8) |
+ FLD_VAL(vbp, 27, 20);
+ } else {
+ timing_h = FLD_VAL(hsw-1, 7, 0) | FLD_VAL(hfp-1, 19, 8) |
+ FLD_VAL(hbp-1, 31, 20);
+
+ timing_v = FLD_VAL(vsw-1, 7, 0) | FLD_VAL(vfp, 19, 8) |
+ FLD_VAL(vbp, 31, 20);
+ }
+
+ enable_clocks(1);
+ dispc_write_reg(DISPC_TIMING_H, timing_h);
+ dispc_write_reg(DISPC_TIMING_V, timing_v);
+ enable_clocks(0);
+}
+
+/* change name to mode? */
+void dispc_set_lcd_timings(struct omap_video_timings *timings)
+{
+ unsigned xtot, ytot;
+ unsigned long ht, vt;
+
+ if (!_dispc_lcd_timings_ok(timings->hsw, timings->hfp,
+ timings->hbp, timings->vsw,
+ timings->vfp, timings->vbp))
+ BUG();
+
+ _dispc_set_lcd_timings(timings->hsw, timings->hfp, timings->hbp,
+ timings->vsw, timings->vfp, timings->vbp);
+
+ dispc_set_lcd_size(timings->x_res, timings->y_res);
+
+ xtot = timings->x_res + timings->hfp + timings->hsw + timings->hbp;
+ ytot = timings->y_res + timings->vfp + timings->vsw + timings->vbp;
+
+ ht = (timings->pixel_clock * 1000) / xtot;
+ vt = (timings->pixel_clock * 1000) / xtot / ytot;
+
+ DSSDBG("xres %u yres %u\n", timings->x_res, timings->y_res);
+ DSSDBG("pck %u\n", timings->pixel_clock);
+ DSSDBG("hsw %d hfp %d hbp %d vsw %d vfp %d vbp %d\n",
+ timings->hsw, timings->hfp, timings->hbp,
+ timings->vsw, timings->vfp, timings->vbp);
+
+ DSSDBG("hsync %luHz, vsync %luHz\n", ht, vt);
+}
+
+static void dispc_set_lcd_divisor(u16 lck_div, u16 pck_div)
+{
+ BUG_ON(lck_div < 1);
+ BUG_ON(pck_div < 2);
+
+ enable_clocks(1);
+ dispc_write_reg(DISPC_DIVISOR,
+ FLD_VAL(lck_div, 23, 16) | FLD_VAL(pck_div, 7, 0));
+ enable_clocks(0);
+}
+
+static void dispc_get_lcd_divisor(int *lck_div, int *pck_div)
+{
+ u32 l;
+ l = dispc_read_reg(DISPC_DIVISOR);
+ *lck_div = FLD_GET(l, 23, 16);
+ *pck_div = FLD_GET(l, 7, 0);
+}
+
+unsigned long dispc_fclk_rate(void)
+{
+ unsigned long r = 0;
+
+ if (dss_get_dispc_clk_source() == 0)
+ r = dss_clk_get_rate(DSS_CLK_FCK1);
+ else
+#ifdef CONFIG_OMAP2_DSS_DSI
+ r = dsi_get_dsi1_pll_rate();
+#else
+ BUG();
+#endif
+ return r;
+}
+
+unsigned long dispc_lclk_rate(void)
+{
+ int lcd;
+ unsigned long r;
+ u32 l;
+
+ l = dispc_read_reg(DISPC_DIVISOR);
+
+ lcd = FLD_GET(l, 23, 16);
+
+ r = dispc_fclk_rate();
+
+ return r / lcd;
+}
+
+unsigned long dispc_pclk_rate(void)
+{
+ int lcd, pcd;
+ unsigned long r;
+ u32 l;
+
+ l = dispc_read_reg(DISPC_DIVISOR);
+
+ lcd = FLD_GET(l, 23, 16);
+ pcd = FLD_GET(l, 7, 0);
+
+ r = dispc_fclk_rate();
+
+ return r / lcd / pcd;
+}
+
+void dispc_dump_clocks(struct seq_file *s)
+{
+ int lcd, pcd;
+
+ enable_clocks(1);
+
+ dispc_get_lcd_divisor(&lcd, &pcd);
+
+ seq_printf(s, "- DISPC -\n");
+
+ seq_printf(s, "dispc fclk source = %s\n",
+ dss_get_dispc_clk_source() == 0 ?
+ "dss1_alwon_fclk" : "dsi1_pll_fclk");
+
+ seq_printf(s, "fck\t\t%-16lu\n", dispc_fclk_rate());
+ seq_printf(s, "lck\t\t%-16lulck div\t%u\n", dispc_lclk_rate(), lcd);
+ seq_printf(s, "pck\t\t%-16lupck div\t%u\n", dispc_pclk_rate(), pcd);
+
+ enable_clocks(0);
+}
+
+void dispc_dump_regs(struct seq_file *s)
+{
+#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dispc_read_reg(r))
+
+ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
+
+ DUMPREG(DISPC_REVISION);
+ DUMPREG(DISPC_SYSCONFIG);
+ DUMPREG(DISPC_SYSSTATUS);
+ DUMPREG(DISPC_IRQSTATUS);
+ DUMPREG(DISPC_IRQENABLE);
+ DUMPREG(DISPC_CONTROL);
+ DUMPREG(DISPC_CONFIG);
+ DUMPREG(DISPC_CAPABLE);
+ DUMPREG(DISPC_DEFAULT_COLOR0);
+ DUMPREG(DISPC_DEFAULT_COLOR1);
+ DUMPREG(DISPC_TRANS_COLOR0);
+ DUMPREG(DISPC_TRANS_COLOR1);
+ DUMPREG(DISPC_LINE_STATUS);
+ DUMPREG(DISPC_LINE_NUMBER);
+ DUMPREG(DISPC_TIMING_H);
+ DUMPREG(DISPC_TIMING_V);
+ DUMPREG(DISPC_POL_FREQ);
+ DUMPREG(DISPC_DIVISOR);
+ DUMPREG(DISPC_GLOBAL_ALPHA);
+ DUMPREG(DISPC_SIZE_DIG);
+ DUMPREG(DISPC_SIZE_LCD);
+
+ DUMPREG(DISPC_GFX_BA0);
+ DUMPREG(DISPC_GFX_BA1);
+ DUMPREG(DISPC_GFX_POSITION);
+ DUMPREG(DISPC_GFX_SIZE);
+ DUMPREG(DISPC_GFX_ATTRIBUTES);
+ DUMPREG(DISPC_GFX_FIFO_THRESHOLD);
+ DUMPREG(DISPC_GFX_FIFO_SIZE_STATUS);
+ DUMPREG(DISPC_GFX_ROW_INC);
+ DUMPREG(DISPC_GFX_PIXEL_INC);
+ DUMPREG(DISPC_GFX_WINDOW_SKIP);
+ DUMPREG(DISPC_GFX_TABLE_BA);
+
+ DUMPREG(DISPC_DATA_CYCLE1);
+ DUMPREG(DISPC_DATA_CYCLE2);
+ DUMPREG(DISPC_DATA_CYCLE3);
+
+ DUMPREG(DISPC_CPR_COEF_R);
+ DUMPREG(DISPC_CPR_COEF_G);
+ DUMPREG(DISPC_CPR_COEF_B);
+
+ DUMPREG(DISPC_GFX_PRELOAD);
+
+ DUMPREG(DISPC_VID_BA0(0));
+ DUMPREG(DISPC_VID_BA1(0));
+ DUMPREG(DISPC_VID_POSITION(0));
+ DUMPREG(DISPC_VID_SIZE(0));
+ DUMPREG(DISPC_VID_ATTRIBUTES(0));
+ DUMPREG(DISPC_VID_FIFO_THRESHOLD(0));
+ DUMPREG(DISPC_VID_FIFO_SIZE_STATUS(0));
+ DUMPREG(DISPC_VID_ROW_INC(0));
+ DUMPREG(DISPC_VID_PIXEL_INC(0));
+ DUMPREG(DISPC_VID_FIR(0));
+ DUMPREG(DISPC_VID_PICTURE_SIZE(0));
+ DUMPREG(DISPC_VID_ACCU0(0));
+ DUMPREG(DISPC_VID_ACCU1(0));
+
+ DUMPREG(DISPC_VID_BA0(1));
+ DUMPREG(DISPC_VID_BA1(1));
+ DUMPREG(DISPC_VID_POSITION(1));
+ DUMPREG(DISPC_VID_SIZE(1));
+ DUMPREG(DISPC_VID_ATTRIBUTES(1));
+ DUMPREG(DISPC_VID_FIFO_THRESHOLD(1));
+ DUMPREG(DISPC_VID_FIFO_SIZE_STATUS(1));
+ DUMPREG(DISPC_VID_ROW_INC(1));
+ DUMPREG(DISPC_VID_PIXEL_INC(1));
+ DUMPREG(DISPC_VID_FIR(1));
+ DUMPREG(DISPC_VID_PICTURE_SIZE(1));
+ DUMPREG(DISPC_VID_ACCU0(1));
+ DUMPREG(DISPC_VID_ACCU1(1));
+
+ DUMPREG(DISPC_VID_FIR_COEF_H(0, 0));
+ DUMPREG(DISPC_VID_FIR_COEF_H(0, 1));
+ DUMPREG(DISPC_VID_FIR_COEF_H(0, 2));
+ DUMPREG(DISPC_VID_FIR_COEF_H(0, 3));
+ DUMPREG(DISPC_VID_FIR_COEF_H(0, 4));
+ DUMPREG(DISPC_VID_FIR_COEF_H(0, 5));
+ DUMPREG(DISPC_VID_FIR_COEF_H(0, 6));
+ DUMPREG(DISPC_VID_FIR_COEF_H(0, 7));
+ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 0));
+ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 1));
+ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 2));
+ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 3));
+ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 4));
+ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 5));
+ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 6));
+ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 7));
+ DUMPREG(DISPC_VID_CONV_COEF(0, 0));
+ DUMPREG(DISPC_VID_CONV_COEF(0, 1));
+ DUMPREG(DISPC_VID_CONV_COEF(0, 2));
+ DUMPREG(DISPC_VID_CONV_COEF(0, 3));
+ DUMPREG(DISPC_VID_CONV_COEF(0, 4));
+ DUMPREG(DISPC_VID_FIR_COEF_V(0, 0));
+ DUMPREG(DISPC_VID_FIR_COEF_V(0, 1));
+ DUMPREG(DISPC_VID_FIR_COEF_V(0, 2));
+ DUMPREG(DISPC_VID_FIR_COEF_V(0, 3));
+ DUMPREG(DISPC_VID_FIR_COEF_V(0, 4));
+ DUMPREG(DISPC_VID_FIR_COEF_V(0, 5));
+ DUMPREG(DISPC_VID_FIR_COEF_V(0, 6));
+ DUMPREG(DISPC_VID_FIR_COEF_V(0, 7));
+
+ DUMPREG(DISPC_VID_FIR_COEF_H(1, 0));
+ DUMPREG(DISPC_VID_FIR_COEF_H(1, 1));
+ DUMPREG(DISPC_VID_FIR_COEF_H(1, 2));
+ DUMPREG(DISPC_VID_FIR_COEF_H(1, 3));
+ DUMPREG(DISPC_VID_FIR_COEF_H(1, 4));
+ DUMPREG(DISPC_VID_FIR_COEF_H(1, 5));
+ DUMPREG(DISPC_VID_FIR_COEF_H(1, 6));
+ DUMPREG(DISPC_VID_FIR_COEF_H(1, 7));
+ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 0));
+ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 1));
+ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 2));
+ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 3));
+ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 4));
+ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 5));
+ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 6));
+ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 7));
+ DUMPREG(DISPC_VID_CONV_COEF(1, 0));
+ DUMPREG(DISPC_VID_CONV_COEF(1, 1));
+ DUMPREG(DISPC_VID_CONV_COEF(1, 2));
+ DUMPREG(DISPC_VID_CONV_COEF(1, 3));
+ DUMPREG(DISPC_VID_CONV_COEF(1, 4));
+ DUMPREG(DISPC_VID_FIR_COEF_V(1, 0));
+ DUMPREG(DISPC_VID_FIR_COEF_V(1, 1));
+ DUMPREG(DISPC_VID_FIR_COEF_V(1, 2));
+ DUMPREG(DISPC_VID_FIR_COEF_V(1, 3));
+ DUMPREG(DISPC_VID_FIR_COEF_V(1, 4));
+ DUMPREG(DISPC_VID_FIR_COEF_V(1, 5));
+ DUMPREG(DISPC_VID_FIR_COEF_V(1, 6));
+ DUMPREG(DISPC_VID_FIR_COEF_V(1, 7));
+
+ DUMPREG(DISPC_VID_PRELOAD(0));
+ DUMPREG(DISPC_VID_PRELOAD(1));
+
+ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
+#undef DUMPREG
+}
+
+static void _dispc_set_pol_freq(bool onoff, bool rf, bool ieo, bool ipc,
+ bool ihs, bool ivs, u8 acbi, u8 acb)
+{
+ u32 l = 0;
+
+ DSSDBG("onoff %d rf %d ieo %d ipc %d ihs %d ivs %d acbi %d acb %d\n",
+ onoff, rf, ieo, ipc, ihs, ivs, acbi, acb);
+
+ l |= FLD_VAL(onoff, 17, 17);
+ l |= FLD_VAL(rf, 16, 16);
+ l |= FLD_VAL(ieo, 15, 15);
+ l |= FLD_VAL(ipc, 14, 14);
+ l |= FLD_VAL(ihs, 13, 13);
+ l |= FLD_VAL(ivs, 12, 12);
+ l |= FLD_VAL(acbi, 11, 8);
+ l |= FLD_VAL(acb, 7, 0);
+
+ enable_clocks(1);
+ dispc_write_reg(DISPC_POL_FREQ, l);
+ enable_clocks(0);
+}
+
+void dispc_set_pol_freq(enum omap_panel_config config, u8 acbi, u8 acb)
+{
+ _dispc_set_pol_freq((config & OMAP_DSS_LCD_ONOFF) != 0,
+ (config & OMAP_DSS_LCD_RF) != 0,
+ (config & OMAP_DSS_LCD_IEO) != 0,
+ (config & OMAP_DSS_LCD_IPC) != 0,
+ (config & OMAP_DSS_LCD_IHS) != 0,
+ (config & OMAP_DSS_LCD_IVS) != 0,
+ acbi, acb);
+}
+
+/* with fck as input clock rate, find dispc dividers that produce req_pck */
+void dispc_find_clk_divs(bool is_tft, unsigned long req_pck, unsigned long fck,
+ struct dispc_clock_info *cinfo)
+{
+ u16 pcd_min = is_tft ? 2 : 3;
+ unsigned long best_pck;
+ u16 best_ld, cur_ld;
+ u16 best_pd, cur_pd;
+
+ best_pck = 0;
+ best_ld = 0;
+ best_pd = 0;
+
+ for (cur_ld = 1; cur_ld <= 255; ++cur_ld) {
+ unsigned long lck = fck / cur_ld;
+
+ for (cur_pd = pcd_min; cur_pd <= 255; ++cur_pd) {
+ unsigned long pck = lck / cur_pd;
+ long old_delta = abs(best_pck - req_pck);
+ long new_delta = abs(pck - req_pck);
+
+ if (best_pck == 0 || new_delta < old_delta) {
+ best_pck = pck;
+ best_ld = cur_ld;
+ best_pd = cur_pd;
+
+ if (pck == req_pck)
+ goto found;
+ }
+
+ if (pck < req_pck)
+ break;
+ }
+
+ if (lck / pcd_min < req_pck)
+ break;
+ }
+
+found:
+ cinfo->lck_div = best_ld;
+ cinfo->pck_div = best_pd;
+ cinfo->lck = fck / cinfo->lck_div;
+ cinfo->pck = cinfo->lck / cinfo->pck_div;
+}
+
+/* calculate clock rates using dividers in cinfo */
+int dispc_calc_clock_rates(unsigned long dispc_fclk_rate,
+ struct dispc_clock_info *cinfo)
+{
+ if (cinfo->lck_div > 255 || cinfo->lck_div == 0)
+ return -EINVAL;
+ if (cinfo->pck_div < 2 || cinfo->pck_div > 255)
+ return -EINVAL;
+
+ cinfo->lck = dispc_fclk_rate / cinfo->lck_div;
+ cinfo->pck = cinfo->lck / cinfo->pck_div;
+
+ return 0;
+}
+
+int dispc_set_clock_div(struct dispc_clock_info *cinfo)
+{
+ DSSDBG("lck = %lu (%u)\n", cinfo->lck, cinfo->lck_div);
+ DSSDBG("pck = %lu (%u)\n", cinfo->pck, cinfo->pck_div);
+
+ dispc_set_lcd_divisor(cinfo->lck_div, cinfo->pck_div);
+
+ return 0;
+}
+
+int dispc_get_clock_div(struct dispc_clock_info *cinfo)
+{
+ unsigned long fck;
+
+ fck = dispc_fclk_rate();
+
+ cinfo->lck_div = REG_GET(DISPC_DIVISOR, 23, 16);
+ cinfo->pck_div = REG_GET(DISPC_DIVISOR, 7, 0);
+
+ cinfo->lck = fck / cinfo->lck_div;
+ cinfo->pck = cinfo->lck / cinfo->pck_div;
+
+ return 0;
+}
+
+/* dispc.irq_lock has to be locked by the caller */
+static void _omap_dispc_set_irqs(void)
+{
+ u32 mask;
+ u32 old_mask;
+ int i;
+ struct omap_dispc_isr_data *isr_data;
+
+ mask = dispc.irq_error_mask;
+
+ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
+ isr_data = &dispc.registered_isr[i];
+
+ if (isr_data->isr == NULL)
+ continue;
+
+ mask |= isr_data->mask;
+ }
+
+ enable_clocks(1);
+
+ old_mask = dispc_read_reg(DISPC_IRQENABLE);
+ /* clear the irqstatus for newly enabled irqs */
+ dispc_write_reg(DISPC_IRQSTATUS, (mask ^ old_mask) & mask);
+
+ dispc_write_reg(DISPC_IRQENABLE, mask);
+
+ enable_clocks(0);
+}
+
+int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask)
+{
+ int i;
+ int ret;
+ unsigned long flags;
+ struct omap_dispc_isr_data *isr_data;
+
+ if (isr == NULL)
+ return -EINVAL;
+
+ spin_lock_irqsave(&dispc.irq_lock, flags);
+
+ /* check for duplicate entry */
+ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
+ isr_data = &dispc.registered_isr[i];
+ if (isr_data->isr == isr && isr_data->arg == arg &&
+ isr_data->mask == mask) {
+ ret = -EINVAL;
+ goto err;
+ }
+ }
+
+ isr_data = NULL;
+ ret = -EBUSY;
+
+ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
+ isr_data = &dispc.registered_isr[i];
+
+ if (isr_data->isr != NULL)
+ continue;
+
+ isr_data->isr = isr;
+ isr_data->arg = arg;
+ isr_data->mask = mask;
+ ret = 0;
+
+ break;
+ }
+
+ _omap_dispc_set_irqs();
+
+ spin_unlock_irqrestore(&dispc.irq_lock, flags);
+
+ return 0;
+err:
+ spin_unlock_irqrestore(&dispc.irq_lock, flags);
+
+ return ret;
+}
+EXPORT_SYMBOL(omap_dispc_register_isr);
+
+int omap_dispc_unregister_isr(omap_dispc_isr_t isr, void *arg, u32 mask)
+{
+ int i;
+ unsigned long flags;
+ int ret = -EINVAL;
+ struct omap_dispc_isr_data *isr_data;
+
+ spin_lock_irqsave(&dispc.irq_lock, flags);
+
+ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
+ isr_data = &dispc.registered_isr[i];
+ if (isr_data->isr != isr || isr_data->arg != arg ||
+ isr_data->mask != mask)
+ continue;
+
+ /* found the correct isr */
+
+ isr_data->isr = NULL;
+ isr_data->arg = NULL;
+ isr_data->mask = 0;
+
+ ret = 0;
+ break;
+ }
+
+ if (ret == 0)
+ _omap_dispc_set_irqs();
+
+ spin_unlock_irqrestore(&dispc.irq_lock, flags);
+
+ return ret;
+}
+EXPORT_SYMBOL(omap_dispc_unregister_isr);
+
+#ifdef DEBUG
+static void print_irq_status(u32 status)
+{
+ if ((status & dispc.irq_error_mask) == 0)
+ return;
+
+ printk(KERN_DEBUG "DISPC IRQ: 0x%x: ", status);
+
+#define PIS(x) \
+ if (status & DISPC_IRQ_##x) \
+ printk(#x " ");
+ PIS(GFX_FIFO_UNDERFLOW);
+ PIS(OCP_ERR);
+ PIS(VID1_FIFO_UNDERFLOW);
+ PIS(VID2_FIFO_UNDERFLOW);
+ PIS(SYNC_LOST);
+ PIS(SYNC_LOST_DIGIT);
+#undef PIS
+
+ printk("\n");
+}
+#endif
+
+/* Called from dss.c. Note that we don't touch clocks here,
+ * but we presume they are on because we got an IRQ. However,
+ * an irq handler may turn the clocks off, so we may not have
+ * clock later in the function. */
+void dispc_irq_handler(void)
+{
+ int i;
+ u32 irqstatus;
+ u32 handledirqs = 0;
+ u32 unhandled_errors;
+ struct omap_dispc_isr_data *isr_data;
+ struct omap_dispc_isr_data registered_isr[DISPC_MAX_NR_ISRS];
+
+ spin_lock(&dispc.irq_lock);
+
+ irqstatus = dispc_read_reg(DISPC_IRQSTATUS);
+
+#ifdef DEBUG
+ if (dss_debug)
+ print_irq_status(irqstatus);
+#endif
+ /* Ack the interrupt. Do it here before clocks are possibly turned
+ * off */
+ dispc_write_reg(DISPC_IRQSTATUS, irqstatus);
+ /* flush posted write */
+ dispc_read_reg(DISPC_IRQSTATUS);
+
+ /* make a copy and unlock, so that isrs can unregister
+ * themselves */
+ memcpy(registered_isr, dispc.registered_isr,
+ sizeof(registered_isr));
+
+ spin_unlock(&dispc.irq_lock);
+
+ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
+ isr_data = ®istered_isr[i];
+
+ if (!isr_data->isr)
+ continue;
+
+ if (isr_data->mask & irqstatus) {
+ isr_data->isr(isr_data->arg, irqstatus);
+ handledirqs |= isr_data->mask;
+ }
+ }
+
+ spin_lock(&dispc.irq_lock);
+
+ unhandled_errors = irqstatus & ~handledirqs & dispc.irq_error_mask;
+
+ if (unhandled_errors) {
+ dispc.error_irqs |= unhandled_errors;
+
+ dispc.irq_error_mask &= ~unhandled_errors;
+ _omap_dispc_set_irqs();
+
+ schedule_work(&dispc.error_work);
+ }
+
+ spin_unlock(&dispc.irq_lock);
+}
+
+static void dispc_error_worker(struct work_struct *work)
+{
+ int i;
+ u32 errors;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dispc.irq_lock, flags);
+ errors = dispc.error_irqs;
+ dispc.error_irqs = 0;
+ spin_unlock_irqrestore(&dispc.irq_lock, flags);
+
+ if (errors & DISPC_IRQ_GFX_FIFO_UNDERFLOW) {
+ DSSERR("GFX_FIFO_UNDERFLOW, disabling GFX\n");
+ for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
+ struct omap_overlay *ovl;
+ ovl = omap_dss_get_overlay(i);
+
+ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
+ continue;
+
+ if (ovl->id == 0) {
+ dispc_enable_plane(ovl->id, 0);
+ dispc_go(ovl->manager->id);
+ mdelay(50);
+ break;
+ }
+ }
+ }
+
+ if (errors & DISPC_IRQ_VID1_FIFO_UNDERFLOW) {
+ DSSERR("VID1_FIFO_UNDERFLOW, disabling VID1\n");
+ for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
+ struct omap_overlay *ovl;
+ ovl = omap_dss_get_overlay(i);
+
+ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
+ continue;
+
+ if (ovl->id == 1) {
+ dispc_enable_plane(ovl->id, 0);
+ dispc_go(ovl->manager->id);
+ mdelay(50);
+ break;
+ }
+ }
+ }
+
+ if (errors & DISPC_IRQ_VID2_FIFO_UNDERFLOW) {
+ DSSERR("VID2_FIFO_UNDERFLOW, disabling VID2\n");
+ for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
+ struct omap_overlay *ovl;
+ ovl = omap_dss_get_overlay(i);
+
+ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
+ continue;
+
+ if (ovl->id == 2) {
+ dispc_enable_plane(ovl->id, 0);
+ dispc_go(ovl->manager->id);
+ mdelay(50);
+ break;
+ }
+ }
+ }
+
+ if (errors & DISPC_IRQ_SYNC_LOST) {
+ struct omap_overlay_manager *manager = NULL;
+ bool enable = false;
+
+ DSSERR("SYNC_LOST, disabling LCD\n");
+
+ for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
+ struct omap_overlay_manager *mgr;
+ mgr = omap_dss_get_overlay_manager(i);
+
+ if (mgr->id == OMAP_DSS_CHANNEL_LCD) {
+ manager = mgr;
+ enable = mgr->device->state ==
+ OMAP_DSS_DISPLAY_ACTIVE;
+ mgr->device->disable(mgr->device);
+ break;
+ }
+ }
+
+ if (manager) {
+ for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
+ struct omap_overlay *ovl;
+ ovl = omap_dss_get_overlay(i);
+
+ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
+ continue;
+
+ if (ovl->id != 0 && ovl->manager == manager)
+ dispc_enable_plane(ovl->id, 0);
+ }
+
+ dispc_go(manager->id);
+ mdelay(50);
+ if (enable)
+ manager->device->enable(manager->device);
+ }
+ }
+
+ if (errors & DISPC_IRQ_SYNC_LOST_DIGIT) {
+ struct omap_overlay_manager *manager = NULL;
+ bool enable = false;
+
+ DSSERR("SYNC_LOST_DIGIT, disabling TV\n");
+
+ for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
+ struct omap_overlay_manager *mgr;
+ mgr = omap_dss_get_overlay_manager(i);
+
+ if (mgr->id == OMAP_DSS_CHANNEL_DIGIT) {
+ manager = mgr;
+ enable = mgr->device->state ==
+ OMAP_DSS_DISPLAY_ACTIVE;
+ mgr->device->disable(mgr->device);
+ break;
+ }
+ }
+
+ if (manager) {
+ for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
+ struct omap_overlay *ovl;
+ ovl = omap_dss_get_overlay(i);
+
+ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
+ continue;
+
+ if (ovl->id != 0 && ovl->manager == manager)
+ dispc_enable_plane(ovl->id, 0);
+ }
+
+ dispc_go(manager->id);
+ mdelay(50);
+ if (enable)
+ manager->device->enable(manager->device);
+ }
+ }
+
+ if (errors & DISPC_IRQ_OCP_ERR) {
+ DSSERR("OCP_ERR\n");
+ for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
+ struct omap_overlay_manager *mgr;
+ mgr = omap_dss_get_overlay_manager(i);
+
+ if (mgr->caps & OMAP_DSS_OVL_CAP_DISPC)
+ mgr->device->disable(mgr->device);
+ }
+ }
+
+ spin_lock_irqsave(&dispc.irq_lock, flags);
+ dispc.irq_error_mask |= errors;
+ _omap_dispc_set_irqs();
+ spin_unlock_irqrestore(&dispc.irq_lock, flags);
+}
+
+int omap_dispc_wait_for_irq_timeout(u32 irqmask, unsigned long timeout)
+{
+ void dispc_irq_wait_handler(void *data, u32 mask)
+ {
+ complete((struct completion *)data);
+ }
+
+ int r;
+ DECLARE_COMPLETION_ONSTACK(completion);
+
+ r = omap_dispc_register_isr(dispc_irq_wait_handler, &completion,
+ irqmask);
+
+ if (r)
+ return r;
+
+ timeout = wait_for_completion_timeout(&completion, timeout);
+
+ omap_dispc_unregister_isr(dispc_irq_wait_handler, &completion, irqmask);
+
+ if (timeout == 0)
+ return -ETIMEDOUT;
+
+ if (timeout == -ERESTARTSYS)
+ return -ERESTARTSYS;
+
+ return 0;
+}
+
+int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask,
+ unsigned long timeout)
+{
+ void dispc_irq_wait_handler(void *data, u32 mask)
+ {
+ complete((struct completion *)data);
+ }
+
+ int r;
+ DECLARE_COMPLETION_ONSTACK(completion);
+
+ r = omap_dispc_register_isr(dispc_irq_wait_handler, &completion,
+ irqmask);
+
+ if (r)
+ return r;
+
+ timeout = wait_for_completion_interruptible_timeout(&completion,
+ timeout);
+
+ omap_dispc_unregister_isr(dispc_irq_wait_handler, &completion, irqmask);
+
+ if (timeout == 0)
+ return -ETIMEDOUT;
+
+ if (timeout == -ERESTARTSYS)
+ return -ERESTARTSYS;
+
+ return 0;
+}
+
+#ifdef CONFIG_OMAP2_DSS_FAKE_VSYNC
+void dispc_fake_vsync_irq(void)
+{
+ u32 irqstatus = DISPC_IRQ_VSYNC;
+ int i;
+
+ local_irq_disable();
+
+ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
+ struct omap_dispc_isr_data *isr_data;
+ isr_data = &dispc.registered_isr[i];
+
+ if (!isr_data->isr)
+ continue;
+
+ if (isr_data->mask & irqstatus)
+ isr_data->isr(isr_data->arg, irqstatus);
+ }
+
+ local_irq_enable();
+}
+#endif
+
+static void _omap_dispc_initialize_irq(void)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&dispc.irq_lock, flags);
+
+ memset(dispc.registered_isr, 0, sizeof(dispc.registered_isr));
+
+ dispc.irq_error_mask = DISPC_IRQ_MASK_ERROR;
+
+ /* there's SYNC_LOST_DIGIT waiting after enabling the DSS,
+ * so clear it */
+ dispc_write_reg(DISPC_IRQSTATUS, dispc_read_reg(DISPC_IRQSTATUS));
+
+ _omap_dispc_set_irqs();
+
+ spin_unlock_irqrestore(&dispc.irq_lock, flags);
+}
+
+void dispc_enable_sidle(void)
+{
+ REG_FLD_MOD(DISPC_SYSCONFIG, 2, 4, 3); /* SIDLEMODE: smart idle */
+}
+
+void dispc_disable_sidle(void)
+{
+ REG_FLD_MOD(DISPC_SYSCONFIG, 1, 4, 3); /* SIDLEMODE: no idle */
+}
+
+static void _omap_dispc_initial_config(void)
+{
+ u32 l;
+
+ l = dispc_read_reg(DISPC_SYSCONFIG);
+ l = FLD_MOD(l, 2, 13, 12); /* MIDLEMODE: smart standby */
+ l = FLD_MOD(l, 2, 4, 3); /* SIDLEMODE: smart idle */
+ l = FLD_MOD(l, 1, 2, 2); /* ENWAKEUP */
+ l = FLD_MOD(l, 1, 0, 0); /* AUTOIDLE */
+ dispc_write_reg(DISPC_SYSCONFIG, l);
+
+ /* FUNCGATED */
+ REG_FLD_MOD(DISPC_CONFIG, 1, 9, 9);
+
+ /* L3 firewall setting: enable access to OCM RAM */
+ /* XXX this should be somewhere in plat-omap */
+ if (cpu_is_omap24xx())
+ __raw_writel(0x402000b0, OMAP2_L3_IO_ADDRESS(0x680050a0));
+
+ _dispc_setup_color_conv_coef();
+
+ dispc_set_loadmode(OMAP_DSS_LOAD_FRAME_ONLY);
+
+ dispc_read_plane_fifo_sizes();
+}
+
+int dispc_init(void)
+{
+ u32 rev;
+
+ spin_lock_init(&dispc.irq_lock);
+
+ INIT_WORK(&dispc.error_work, dispc_error_worker);
+
+ dispc.base = ioremap(DISPC_BASE, DISPC_SZ_REGS);
+ if (!dispc.base) {
+ DSSERR("can't ioremap DISPC\n");
+ return -ENOMEM;
+ }
+
+ enable_clocks(1);
+
+ _omap_dispc_initial_config();
+
+ _omap_dispc_initialize_irq();
+
+ dispc_save_context();
+
+ rev = dispc_read_reg(DISPC_REVISION);
+ printk(KERN_INFO "OMAP DISPC rev %d.%d\n",
+ FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0));
+
+ enable_clocks(0);
+
+ return 0;
+}
+
+void dispc_exit(void)
+{
+ iounmap(dispc.base);
+}
+
+int dispc_enable_plane(enum omap_plane plane, bool enable)
+{
+ DSSDBG("dispc_enable_plane %d, %d\n", plane, enable);
+
+ enable_clocks(1);
+ _dispc_enable_plane(plane, enable);
+ enable_clocks(0);
+
+ return 0;
+}
+
+int dispc_setup_plane(enum omap_plane plane,
+ u32 paddr, u16 screen_width,
+ u16 pos_x, u16 pos_y,
+ u16 width, u16 height,
+ u16 out_width, u16 out_height,
+ enum omap_color_mode color_mode,
+ bool ilace,
+ enum omap_dss_rotation_type rotation_type,
+ u8 rotation, bool mirror, u8 global_alpha)
+{
+ int r = 0;
+
+ DSSDBG("dispc_setup_plane %d, pa %x, sw %d, %d,%d, %dx%d -> "
+ "%dx%d, ilace %d, cmode %x, rot %d, mir %d\n",
+ plane, paddr, screen_width, pos_x, pos_y,
+ width, height,
+ out_width, out_height,
+ ilace, color_mode,
+ rotation, mirror);
+
+ enable_clocks(1);
+
+ r = _dispc_setup_plane(plane,
+ paddr, screen_width,
+ pos_x, pos_y,
+ width, height,
+ out_width, out_height,
+ color_mode, ilace,
+ rotation_type,
+ rotation, mirror,
+ global_alpha);
+
+ enable_clocks(0);
+
+ return r;
+}
--- /dev/null
+/*
+ * linux/drivers/video/omap2/dss/display.c
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * Some code and ideas taken from drivers/video/omap/ driver
+ * by Imre Deak.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define DSS_SUBSYS_NAME "DISPLAY"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/jiffies.h>
+#include <linux/list.h>
+#include <linux/platform_device.h>
+
+#include <plat/display.h>
+#include "dss.h"
+
+static LIST_HEAD(display_list);
+
+static ssize_t display_enabled_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ bool enabled = dssdev->state != OMAP_DSS_DISPLAY_DISABLED;
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", enabled);
+}
+
+static ssize_t display_enabled_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ bool enabled, r;
+
+ enabled = simple_strtoul(buf, NULL, 10);
+
+ if (enabled != (dssdev->state != OMAP_DSS_DISPLAY_DISABLED)) {
+ if (enabled) {
+ r = dssdev->enable(dssdev);
+ if (r)
+ return r;
+ } else {
+ dssdev->disable(dssdev);
+ }
+ }
+
+ return size;
+}
+
+static ssize_t display_upd_mode_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ enum omap_dss_update_mode mode = OMAP_DSS_UPDATE_AUTO;
+ if (dssdev->get_update_mode)
+ mode = dssdev->get_update_mode(dssdev);
+ return snprintf(buf, PAGE_SIZE, "%d\n", mode);
+}
+
+static ssize_t display_upd_mode_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ int val, r;
+ enum omap_dss_update_mode mode;
+
+ val = simple_strtoul(buf, NULL, 10);
+
+ switch (val) {
+ case OMAP_DSS_UPDATE_DISABLED:
+ case OMAP_DSS_UPDATE_AUTO:
+ case OMAP_DSS_UPDATE_MANUAL:
+ mode = (enum omap_dss_update_mode)val;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ r = dssdev->set_update_mode(dssdev, mode);
+ if (r)
+ return r;
+
+ return size;
+}
+
+static ssize_t display_tear_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ return snprintf(buf, PAGE_SIZE, "%d\n",
+ dssdev->get_te ? dssdev->get_te(dssdev) : 0);
+}
+
+static ssize_t display_tear_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t size)
+{
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ unsigned long te;
+ int r;
+
+ if (!dssdev->enable_te || !dssdev->get_te)
+ return -ENOENT;
+
+ te = simple_strtoul(buf, NULL, 0);
+
+ r = dssdev->enable_te(dssdev, te);
+ if (r)
+ return r;
+
+ return size;
+}
+
+static ssize_t display_timings_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ struct omap_video_timings t;
+
+ if (!dssdev->get_timings)
+ return -ENOENT;
+
+ dssdev->get_timings(dssdev, &t);
+
+ return snprintf(buf, PAGE_SIZE, "%u,%u/%u/%u/%u,%u/%u/%u/%u\n",
+ t.pixel_clock,
+ t.x_res, t.hfp, t.hbp, t.hsw,
+ t.y_res, t.vfp, t.vbp, t.vsw);
+}
+
+static ssize_t display_timings_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t size)
+{
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ struct omap_video_timings t;
+ int r, found;
+
+ if (!dssdev->set_timings || !dssdev->check_timings)
+ return -ENOENT;
+
+ found = 0;
+#ifdef CONFIG_OMAP2_DSS_VENC
+ if (strncmp("pal", buf, 3) == 0) {
+ t = omap_dss_pal_timings;
+ found = 1;
+ } else if (strncmp("ntsc", buf, 4) == 0) {
+ t = omap_dss_ntsc_timings;
+ found = 1;
+ }
+#endif
+ if (!found && sscanf(buf, "%u,%hu/%hu/%hu/%hu,%hu/%hu/%hu/%hu",
+ &t.pixel_clock,
+ &t.x_res, &t.hfp, &t.hbp, &t.hsw,
+ &t.y_res, &t.vfp, &t.vbp, &t.vsw) != 9)
+ return -EINVAL;
+
+ r = dssdev->check_timings(dssdev, &t);
+ if (r)
+ return r;
+
+ dssdev->set_timings(dssdev, &t);
+
+ return size;
+}
+
+static ssize_t display_rotate_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ int rotate;
+ if (!dssdev->get_rotate)
+ return -ENOENT;
+ rotate = dssdev->get_rotate(dssdev);
+ return snprintf(buf, PAGE_SIZE, "%u\n", rotate);
+}
+
+static ssize_t display_rotate_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t size)
+{
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ unsigned long rot;
+ int r;
+
+ if (!dssdev->set_rotate || !dssdev->get_rotate)
+ return -ENOENT;
+
+ rot = simple_strtoul(buf, NULL, 0);
+
+ r = dssdev->set_rotate(dssdev, rot);
+ if (r)
+ return r;
+
+ return size;
+}
+
+static ssize_t display_mirror_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ int mirror;
+ if (!dssdev->get_mirror)
+ return -ENOENT;
+ mirror = dssdev->get_mirror(dssdev);
+ return snprintf(buf, PAGE_SIZE, "%u\n", mirror);
+}
+
+static ssize_t display_mirror_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t size)
+{
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ unsigned long mirror;
+ int r;
+
+ if (!dssdev->set_mirror || !dssdev->get_mirror)
+ return -ENOENT;
+
+ mirror = simple_strtoul(buf, NULL, 0);
+
+ r = dssdev->set_mirror(dssdev, mirror);
+ if (r)
+ return r;
+
+ return size;
+}
+
+static ssize_t display_wss_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ unsigned int wss;
+
+ if (!dssdev->get_wss)
+ return -ENOENT;
+
+ wss = dssdev->get_wss(dssdev);
+
+ return snprintf(buf, PAGE_SIZE, "0x%05x\n", wss);
+}
+
+static ssize_t display_wss_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t size)
+{
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ unsigned long wss;
+ int r;
+
+ if (!dssdev->get_wss || !dssdev->set_wss)
+ return -ENOENT;
+
+ if (strict_strtoul(buf, 0, &wss))
+ return -EINVAL;
+
+ if (wss > 0xfffff)
+ return -EINVAL;
+
+ r = dssdev->set_wss(dssdev, wss);
+ if (r)
+ return r;
+
+ return size;
+}
+
+static DEVICE_ATTR(enabled, S_IRUGO|S_IWUSR,
+ display_enabled_show, display_enabled_store);
+static DEVICE_ATTR(update_mode, S_IRUGO|S_IWUSR,
+ display_upd_mode_show, display_upd_mode_store);
+static DEVICE_ATTR(tear_elim, S_IRUGO|S_IWUSR,
+ display_tear_show, display_tear_store);
+static DEVICE_ATTR(timings, S_IRUGO|S_IWUSR,
+ display_timings_show, display_timings_store);
+static DEVICE_ATTR(rotate, S_IRUGO|S_IWUSR,
+ display_rotate_show, display_rotate_store);
+static DEVICE_ATTR(mirror, S_IRUGO|S_IWUSR,
+ display_mirror_show, display_mirror_store);
+static DEVICE_ATTR(wss, S_IRUGO|S_IWUSR,
+ display_wss_show, display_wss_store);
+
+static struct device_attribute *display_sysfs_attrs[] = {
+ &dev_attr_enabled,
+ &dev_attr_update_mode,
+ &dev_attr_tear_elim,
+ &dev_attr_timings,
+ &dev_attr_rotate,
+ &dev_attr_mirror,
+ &dev_attr_wss,
+ NULL
+};
+
+static void default_get_resolution(struct omap_dss_device *dssdev,
+ u16 *xres, u16 *yres)
+{
+ *xres = dssdev->panel.timings.x_res;
+ *yres = dssdev->panel.timings.y_res;
+}
+
+void default_get_overlay_fifo_thresholds(enum omap_plane plane,
+ u32 fifo_size, enum omap_burst_size *burst_size,
+ u32 *fifo_low, u32 *fifo_high)
+{
+ unsigned burst_size_bytes;
+
+ *burst_size = OMAP_DSS_BURST_16x32;
+ burst_size_bytes = 16 * 32 / 8;
+
+ *fifo_high = fifo_size - 1;
+ *fifo_low = fifo_size - burst_size_bytes;
+}
+
+static int default_wait_vsync(struct omap_dss_device *dssdev)
+{
+ unsigned long timeout = msecs_to_jiffies(500);
+ u32 irq;
+
+ if (dssdev->type == OMAP_DISPLAY_TYPE_VENC)
+ irq = DISPC_IRQ_EVSYNC_ODD;
+ else
+ irq = DISPC_IRQ_VSYNC;
+
+ return omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
+}
+
+static int default_get_recommended_bpp(struct omap_dss_device *dssdev)
+{
+ if (dssdev->panel.recommended_bpp)
+ return dssdev->panel.recommended_bpp;
+
+ switch (dssdev->type) {
+ case OMAP_DISPLAY_TYPE_DPI:
+ if (dssdev->phy.dpi.data_lines == 24)
+ return 24;
+ else
+ return 16;
+
+ case OMAP_DISPLAY_TYPE_DBI:
+ case OMAP_DISPLAY_TYPE_DSI:
+ if (dssdev->ctrl.pixel_size == 24)
+ return 24;
+ else
+ return 16;
+ case OMAP_DISPLAY_TYPE_VENC:
+ case OMAP_DISPLAY_TYPE_SDI:
+ return 24;
+ return 24;
+ default:
+ BUG();
+ }
+}
+
+/* Checks if replication logic should be used. Only use for active matrix,
+ * when overlay is in RGB12U or RGB16 mode, and LCD interface is
+ * 18bpp or 24bpp */
+bool dss_use_replication(struct omap_dss_device *dssdev,
+ enum omap_color_mode mode)
+{
+ int bpp;
+
+ if (mode != OMAP_DSS_COLOR_RGB12U && mode != OMAP_DSS_COLOR_RGB16)
+ return false;
+
+ if (dssdev->type == OMAP_DISPLAY_TYPE_DPI &&
+ (dssdev->panel.config & OMAP_DSS_LCD_TFT) == 0)
+ return false;
+
+ switch (dssdev->type) {
+ case OMAP_DISPLAY_TYPE_DPI:
+ bpp = dssdev->phy.dpi.data_lines;
+ break;
+ case OMAP_DISPLAY_TYPE_VENC:
+ case OMAP_DISPLAY_TYPE_SDI:
+ bpp = 24;
+ break;
+ case OMAP_DISPLAY_TYPE_DBI:
+ case OMAP_DISPLAY_TYPE_DSI:
+ bpp = dssdev->ctrl.pixel_size;
+ break;
+ default:
+ BUG();
+ }
+
+ return bpp > 16;
+}
+
+void dss_init_device(struct platform_device *pdev,
+ struct omap_dss_device *dssdev)
+{
+ struct device_attribute *attr;
+ int i;
+ int r;
+
+ switch (dssdev->type) {
+ case OMAP_DISPLAY_TYPE_DPI:
+#ifdef CONFIG_OMAP2_DSS_RFBI
+ case OMAP_DISPLAY_TYPE_DBI:
+#endif
+#ifdef CONFIG_OMAP2_DSS_SDI
+ case OMAP_DISPLAY_TYPE_SDI:
+#endif
+#ifdef CONFIG_OMAP2_DSS_DSI
+ case OMAP_DISPLAY_TYPE_DSI:
+#endif
+#ifdef CONFIG_OMAP2_DSS_VENC
+ case OMAP_DISPLAY_TYPE_VENC:
+#endif
+ break;
+ default:
+ DSSERR("Support for display '%s' not compiled in.\n",
+ dssdev->name);
+ return;
+ }
+
+ dssdev->get_resolution = default_get_resolution;
+ dssdev->get_recommended_bpp = default_get_recommended_bpp;
+ dssdev->wait_vsync = default_wait_vsync;
+
+ switch (dssdev->type) {
+ case OMAP_DISPLAY_TYPE_DPI:
+ r = dpi_init_display(dssdev);
+ break;
+#ifdef CONFIG_OMAP2_DSS_RFBI
+ case OMAP_DISPLAY_TYPE_DBI:
+ r = rfbi_init_display(dssdev);
+ break;
+#endif
+#ifdef CONFIG_OMAP2_DSS_VENC
+ case OMAP_DISPLAY_TYPE_VENC:
+ r = venc_init_display(dssdev);
+ break;
+#endif
+#ifdef CONFIG_OMAP2_DSS_SDI
+ case OMAP_DISPLAY_TYPE_SDI:
+ r = sdi_init_display(dssdev);
+ break;
+#endif
+#ifdef CONFIG_OMAP2_DSS_DSI
+ case OMAP_DISPLAY_TYPE_DSI:
+ r = dsi_init_display(dssdev);
+ break;
+#endif
+ default:
+ BUG();
+ }
+
+ if (r) {
+ DSSERR("failed to init display %s\n", dssdev->name);
+ return;
+ }
+
+ /* create device sysfs files */
+ i = 0;
+ while ((attr = display_sysfs_attrs[i++]) != NULL) {
+ r = device_create_file(&dssdev->dev, attr);
+ if (r)
+ DSSERR("failed to create sysfs file\n");
+ }
+
+ /* create display? sysfs links */
+ r = sysfs_create_link(&pdev->dev.kobj, &dssdev->dev.kobj,
+ dev_name(&dssdev->dev));
+ if (r)
+ DSSERR("failed to create sysfs display link\n");
+}
+
+void dss_uninit_device(struct platform_device *pdev,
+ struct omap_dss_device *dssdev)
+{
+ struct device_attribute *attr;
+ int i = 0;
+
+ sysfs_remove_link(&pdev->dev.kobj, dev_name(&dssdev->dev));
+
+ while ((attr = display_sysfs_attrs[i++]) != NULL)
+ device_remove_file(&dssdev->dev, attr);
+
+ if (dssdev->manager)
+ dssdev->manager->unset_device(dssdev->manager);
+}
+
+static int dss_suspend_device(struct device *dev, void *data)
+{
+ int r;
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+
+ if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) {
+ dssdev->activate_after_resume = false;
+ return 0;
+ }
+
+ if (!dssdev->suspend) {
+ DSSERR("display '%s' doesn't implement suspend\n",
+ dssdev->name);
+ return -ENOSYS;
+ }
+
+ r = dssdev->suspend(dssdev);
+ if (r)
+ return r;
+
+ dssdev->activate_after_resume = true;
+
+ return 0;
+}
+
+int dss_suspend_all_devices(void)
+{
+ int r;
+ struct bus_type *bus = dss_get_bus();
+
+ r = bus_for_each_dev(bus, NULL, NULL, dss_suspend_device);
+ if (r) {
+ /* resume all displays that were suspended */
+ dss_resume_all_devices();
+ return r;
+ }
+
+ return 0;
+}
+
+static int dss_resume_device(struct device *dev, void *data)
+{
+ int r;
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+
+ if (dssdev->activate_after_resume && dssdev->resume) {
+ r = dssdev->resume(dssdev);
+ if (r)
+ return r;
+ }
+
+ dssdev->activate_after_resume = false;
+
+ return 0;
+}
+
+int dss_resume_all_devices(void)
+{
+ struct bus_type *bus = dss_get_bus();
+
+ return bus_for_each_dev(bus, NULL, NULL, dss_resume_device);
+}
+
+static int dss_disable_device(struct device *dev, void *data)
+{
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ dssdev->disable(dssdev);
+ return 0;
+}
+
+void dss_disable_all_devices(void)
+{
+ struct bus_type *bus = dss_get_bus();
+ bus_for_each_dev(bus, NULL, NULL, dss_disable_device);
+}
+
+
+void omap_dss_get_device(struct omap_dss_device *dssdev)
+{
+ get_device(&dssdev->dev);
+}
+EXPORT_SYMBOL(omap_dss_get_device);
+
+void omap_dss_put_device(struct omap_dss_device *dssdev)
+{
+ put_device(&dssdev->dev);
+}
+EXPORT_SYMBOL(omap_dss_put_device);
+
+/* ref count of the found device is incremented. ref count
+ * of from-device is decremented. */
+struct omap_dss_device *omap_dss_get_next_device(struct omap_dss_device *from)
+{
+ struct device *dev;
+ struct device *dev_start = NULL;
+ struct omap_dss_device *dssdev = NULL;
+
+ int match(struct device *dev, void *data)
+ {
+ /* skip panels connected to controllers */
+ if (to_dss_device(dev)->panel.ctrl)
+ return 0;
+
+ return 1;
+ }
+
+ if (from)
+ dev_start = &from->dev;
+ dev = bus_find_device(dss_get_bus(), dev_start, NULL, match);
+ if (dev)
+ dssdev = to_dss_device(dev);
+ if (from)
+ put_device(&from->dev);
+
+ return dssdev;
+}
+EXPORT_SYMBOL(omap_dss_get_next_device);
+
+struct omap_dss_device *omap_dss_find_device(void *data,
+ int (*match)(struct omap_dss_device *dssdev, void *data))
+{
+ struct omap_dss_device *dssdev = NULL;
+
+ while ((dssdev = omap_dss_get_next_device(dssdev)) != NULL) {
+ if (match(dssdev, data))
+ return dssdev;
+ }
+
+ return NULL;
+}
+EXPORT_SYMBOL(omap_dss_find_device);
+
+int omap_dss_start_device(struct omap_dss_device *dssdev)
+{
+ int r;
+
+ if (!dssdev->driver) {
+ DSSDBG("no driver\n");
+ r = -ENODEV;
+ goto err0;
+ }
+
+ if (dssdev->ctrl.panel && !dssdev->ctrl.panel->driver) {
+ DSSDBG("no panel driver\n");
+ r = -ENODEV;
+ goto err0;
+ }
+
+ if (!try_module_get(dssdev->dev.driver->owner)) {
+ r = -ENODEV;
+ goto err0;
+ }
+
+ if (dssdev->ctrl.panel) {
+ if (!try_module_get(dssdev->ctrl.panel->dev.driver->owner)) {
+ r = -ENODEV;
+ goto err1;
+ }
+ }
+
+ return 0;
+err1:
+ module_put(dssdev->dev.driver->owner);
+err0:
+ return r;
+}
+EXPORT_SYMBOL(omap_dss_start_device);
+
+void omap_dss_stop_device(struct omap_dss_device *dssdev)
+{
+ if (dssdev->ctrl.panel)
+ module_put(dssdev->ctrl.panel->dev.driver->owner);
+
+ module_put(dssdev->dev.driver->owner);
+}
+EXPORT_SYMBOL(omap_dss_stop_device);
+
--- /dev/null
+/*
+ * linux/drivers/video/omap2/dss/dpi.c
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * Some code and ideas taken from drivers/video/omap/ driver
+ * by Imre Deak.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define DSS_SUBSYS_NAME "DPI"
+
+#include <linux/kernel.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+
+#include <plat/display.h>
+#include <plat/cpu.h>
+
+#include "dss.h"
+
+static struct {
+ int update_enabled;
+} dpi;
+
+#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
+static int dpi_set_dsi_clk(bool is_tft, unsigned long pck_req,
+ unsigned long *fck, int *lck_div, int *pck_div)
+{
+ struct dsi_clock_info dsi_cinfo;
+ struct dispc_clock_info dispc_cinfo;
+ int r;
+
+ r = dsi_pll_calc_clock_div_pck(is_tft, pck_req, &dsi_cinfo,
+ &dispc_cinfo);
+ if (r)
+ return r;
+
+ r = dsi_pll_set_clock_div(&dsi_cinfo);
+ if (r)
+ return r;
+
+ dss_select_clk_source(0, 1);
+
+ r = dispc_set_clock_div(&dispc_cinfo);
+ if (r)
+ return r;
+
+ *fck = dsi_cinfo.dsi1_pll_fclk;
+ *lck_div = dispc_cinfo.lck_div;
+ *pck_div = dispc_cinfo.pck_div;
+
+ return 0;
+}
+#else
+static int dpi_set_dispc_clk(bool is_tft, unsigned long pck_req,
+ unsigned long *fck, int *lck_div, int *pck_div)
+{
+ struct dss_clock_info dss_cinfo;
+ struct dispc_clock_info dispc_cinfo;
+ int r;
+
+ r = dss_calc_clock_div(is_tft, pck_req, &dss_cinfo, &dispc_cinfo);
+ if (r)
+ return r;
+
+ r = dss_set_clock_div(&dss_cinfo);
+ if (r)
+ return r;
+
+ r = dispc_set_clock_div(&dispc_cinfo);
+ if (r)
+ return r;
+
+ *fck = dss_cinfo.fck;
+ *lck_div = dispc_cinfo.lck_div;
+ *pck_div = dispc_cinfo.pck_div;
+
+ return 0;
+}
+#endif
+
+static int dpi_set_mode(struct omap_dss_device *dssdev)
+{
+ struct omap_video_timings *t = &dssdev->panel.timings;
+ int lck_div, pck_div;
+ unsigned long fck;
+ unsigned long pck;
+ bool is_tft;
+ int r = 0;
+
+ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
+
+ dispc_set_pol_freq(dssdev->panel.config, dssdev->panel.acbi,
+ dssdev->panel.acb);
+
+ is_tft = (dssdev->panel.config & OMAP_DSS_LCD_TFT) != 0;
+
+#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
+ r = dpi_set_dsi_clk(is_tft, t->pixel_clock * 1000,
+ &fck, &lck_div, &pck_div);
+#else
+ r = dpi_set_dispc_clk(is_tft, t->pixel_clock * 1000,
+ &fck, &lck_div, &pck_div);
+#endif
+ if (r)
+ goto err0;
+
+ pck = fck / lck_div / pck_div / 1000;
+
+ if (pck != t->pixel_clock) {
+ DSSWARN("Could not find exact pixel clock. "
+ "Requested %d kHz, got %lu kHz\n",
+ t->pixel_clock, pck);
+
+ t->pixel_clock = pck;
+ }
+
+ dispc_set_lcd_timings(t);
+
+err0:
+ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
+ return r;
+}
+
+static int dpi_basic_init(struct omap_dss_device *dssdev)
+{
+ bool is_tft;
+
+ is_tft = (dssdev->panel.config & OMAP_DSS_LCD_TFT) != 0;
+
+ dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_BYPASS);
+ dispc_set_lcd_display_type(is_tft ? OMAP_DSS_LCD_DISPLAY_TFT :
+ OMAP_DSS_LCD_DISPLAY_STN);
+ dispc_set_tft_data_lines(dssdev->phy.dpi.data_lines);
+
+ return 0;
+}
+
+static int dpi_display_enable(struct omap_dss_device *dssdev)
+{
+ int r;
+
+ r = omap_dss_start_device(dssdev);
+ if (r) {
+ DSSERR("failed to start device\n");
+ goto err0;
+ }
+
+ if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) {
+ DSSERR("display already enabled\n");
+ r = -EINVAL;
+ goto err1;
+ }
+
+ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
+
+ r = dpi_basic_init(dssdev);
+ if (r)
+ goto err2;
+
+#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
+ dss_clk_enable(DSS_CLK_FCK2);
+ r = dsi_pll_init(dssdev, 0, 1);
+ if (r)
+ goto err3;
+#endif
+ r = dpi_set_mode(dssdev);
+ if (r)
+ goto err4;
+
+ mdelay(2);
+
+ dispc_enable_lcd_out(1);
+
+ r = dssdev->driver->enable(dssdev);
+ if (r)
+ goto err5;
+
+ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+
+ return 0;
+
+err5:
+ dispc_enable_lcd_out(0);
+err4:
+#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
+ dsi_pll_uninit();
+err3:
+ dss_clk_disable(DSS_CLK_FCK2);
+#endif
+err2:
+ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
+err1:
+ omap_dss_stop_device(dssdev);
+err0:
+ return r;
+}
+
+static int dpi_display_resume(struct omap_dss_device *dssdev);
+
+static void dpi_display_disable(struct omap_dss_device *dssdev)
+{
+ if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED)
+ return;
+
+ if (dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED)
+ dpi_display_resume(dssdev);
+
+ dssdev->driver->disable(dssdev);
+
+ dispc_enable_lcd_out(0);
+
+#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
+ dss_select_clk_source(0, 0);
+ dsi_pll_uninit();
+ dss_clk_disable(DSS_CLK_FCK2);
+#endif
+
+ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
+
+ dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
+
+ omap_dss_stop_device(dssdev);
+}
+
+static int dpi_display_suspend(struct omap_dss_device *dssdev)
+{
+ if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
+ return -EINVAL;
+
+ DSSDBG("dpi_display_suspend\n");
+
+ if (dssdev->driver->suspend)
+ dssdev->driver->suspend(dssdev);
+
+ dispc_enable_lcd_out(0);
+
+ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
+
+ dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
+
+ return 0;
+}
+
+static int dpi_display_resume(struct omap_dss_device *dssdev)
+{
+ if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED)
+ return -EINVAL;
+
+ DSSDBG("dpi_display_resume\n");
+
+ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
+
+ dispc_enable_lcd_out(1);
+
+ if (dssdev->driver->resume)
+ dssdev->driver->resume(dssdev);
+
+ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+
+ return 0;
+}
+
+static void dpi_set_timings(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings)
+{
+ DSSDBG("dpi_set_timings\n");
+ dssdev->panel.timings = *timings;
+ if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) {
+ dpi_set_mode(dssdev);
+ dispc_go(OMAP_DSS_CHANNEL_LCD);
+ }
+}
+
+static int dpi_check_timings(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings)
+{
+ bool is_tft;
+ int r;
+ int lck_div, pck_div;
+ unsigned long fck;
+ unsigned long pck;
+
+ if (!dispc_lcd_timings_ok(timings))
+ return -EINVAL;
+
+ if (timings->pixel_clock == 0)
+ return -EINVAL;
+
+ is_tft = (dssdev->panel.config & OMAP_DSS_LCD_TFT) != 0;
+
+#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
+ {
+ struct dsi_clock_info dsi_cinfo;
+ struct dispc_clock_info dispc_cinfo;
+ r = dsi_pll_calc_clock_div_pck(is_tft,
+ timings->pixel_clock * 1000,
+ &dsi_cinfo, &dispc_cinfo);
+
+ if (r)
+ return r;
+
+ fck = dsi_cinfo.dsi1_pll_fclk;
+ lck_div = dispc_cinfo.lck_div;
+ pck_div = dispc_cinfo.pck_div;
+ }
+#else
+ {
+ struct dss_clock_info dss_cinfo;
+ struct dispc_clock_info dispc_cinfo;
+ r = dss_calc_clock_div(is_tft, timings->pixel_clock * 1000,
+ &dss_cinfo, &dispc_cinfo);
+
+ if (r)
+ return r;
+
+ fck = dss_cinfo.fck;
+ lck_div = dispc_cinfo.lck_div;
+ pck_div = dispc_cinfo.pck_div;
+ }
+#endif
+
+ pck = fck / lck_div / pck_div / 1000;
+
+ timings->pixel_clock = pck;
+
+ return 0;
+}
+
+static void dpi_get_timings(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings)
+{
+ *timings = dssdev->panel.timings;
+}
+
+static int dpi_display_set_update_mode(struct omap_dss_device *dssdev,
+ enum omap_dss_update_mode mode)
+{
+ if (mode == OMAP_DSS_UPDATE_MANUAL)
+ return -EINVAL;
+
+ if (mode == OMAP_DSS_UPDATE_DISABLED) {
+ dispc_enable_lcd_out(0);
+ dpi.update_enabled = 0;
+ } else {
+ dispc_enable_lcd_out(1);
+ dpi.update_enabled = 1;
+ }
+
+ return 0;
+}
+
+static enum omap_dss_update_mode dpi_display_get_update_mode(
+ struct omap_dss_device *dssdev)
+{
+ return dpi.update_enabled ? OMAP_DSS_UPDATE_AUTO :
+ OMAP_DSS_UPDATE_DISABLED;
+}
+
+int dpi_init_display(struct omap_dss_device *dssdev)
+{
+ DSSDBG("init_display\n");
+
+ dssdev->enable = dpi_display_enable;
+ dssdev->disable = dpi_display_disable;
+ dssdev->suspend = dpi_display_suspend;
+ dssdev->resume = dpi_display_resume;
+ dssdev->set_timings = dpi_set_timings;
+ dssdev->check_timings = dpi_check_timings;
+ dssdev->get_timings = dpi_get_timings;
+ dssdev->set_update_mode = dpi_display_set_update_mode;
+ dssdev->get_update_mode = dpi_display_get_update_mode;
+
+ return 0;
+}
+
+int dpi_init(void)
+{
+ return 0;
+}
+
+void dpi_exit(void)
+{
+}
+
--- /dev/null
+/*
+ * linux/drivers/video/omap2/dss/dsi.c
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define DSS_SUBSYS_NAME "DSI"
+
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/mutex.h>
+#include <linux/seq_file.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+#include <linux/kthread.h>
+#include <linux/wait.h>
+
+#include <plat/display.h>
+#include <plat/clock.h>
+
+#include "dss.h"
+
+/*#define VERBOSE_IRQ*/
+#define DSI_CATCH_MISSING_TE
+
+#define DSI_BASE 0x4804FC00
+
+struct dsi_reg { u16 idx; };
+
+#define DSI_REG(idx) ((const struct dsi_reg) { idx })
+
+#define DSI_SZ_REGS SZ_1K
+/* DSI Protocol Engine */
+
+#define DSI_REVISION DSI_REG(0x0000)
+#define DSI_SYSCONFIG DSI_REG(0x0010)
+#define DSI_SYSSTATUS DSI_REG(0x0014)
+#define DSI_IRQSTATUS DSI_REG(0x0018)
+#define DSI_IRQENABLE DSI_REG(0x001C)
+#define DSI_CTRL DSI_REG(0x0040)
+#define DSI_COMPLEXIO_CFG1 DSI_REG(0x0048)
+#define DSI_COMPLEXIO_IRQ_STATUS DSI_REG(0x004C)
+#define DSI_COMPLEXIO_IRQ_ENABLE DSI_REG(0x0050)
+#define DSI_CLK_CTRL DSI_REG(0x0054)
+#define DSI_TIMING1 DSI_REG(0x0058)
+#define DSI_TIMING2 DSI_REG(0x005C)
+#define DSI_VM_TIMING1 DSI_REG(0x0060)
+#define DSI_VM_TIMING2 DSI_REG(0x0064)
+#define DSI_VM_TIMING3 DSI_REG(0x0068)
+#define DSI_CLK_TIMING DSI_REG(0x006C)
+#define DSI_TX_FIFO_VC_SIZE DSI_REG(0x0070)
+#define DSI_RX_FIFO_VC_SIZE DSI_REG(0x0074)
+#define DSI_COMPLEXIO_CFG2 DSI_REG(0x0078)
+#define DSI_RX_FIFO_VC_FULLNESS DSI_REG(0x007C)
+#define DSI_VM_TIMING4 DSI_REG(0x0080)
+#define DSI_TX_FIFO_VC_EMPTINESS DSI_REG(0x0084)
+#define DSI_VM_TIMING5 DSI_REG(0x0088)
+#define DSI_VM_TIMING6 DSI_REG(0x008C)
+#define DSI_VM_TIMING7 DSI_REG(0x0090)
+#define DSI_STOPCLK_TIMING DSI_REG(0x0094)
+#define DSI_VC_CTRL(n) DSI_REG(0x0100 + (n * 0x20))
+#define DSI_VC_TE(n) DSI_REG(0x0104 + (n * 0x20))
+#define DSI_VC_LONG_PACKET_HEADER(n) DSI_REG(0x0108 + (n * 0x20))
+#define DSI_VC_LONG_PACKET_PAYLOAD(n) DSI_REG(0x010C + (n * 0x20))
+#define DSI_VC_SHORT_PACKET_HEADER(n) DSI_REG(0x0110 + (n * 0x20))
+#define DSI_VC_IRQSTATUS(n) DSI_REG(0x0118 + (n * 0x20))
+#define DSI_VC_IRQENABLE(n) DSI_REG(0x011C + (n * 0x20))
+
+/* DSIPHY_SCP */
+
+#define DSI_DSIPHY_CFG0 DSI_REG(0x200 + 0x0000)
+#define DSI_DSIPHY_CFG1 DSI_REG(0x200 + 0x0004)
+#define DSI_DSIPHY_CFG2 DSI_REG(0x200 + 0x0008)
+#define DSI_DSIPHY_CFG5 DSI_REG(0x200 + 0x0014)
+
+/* DSI_PLL_CTRL_SCP */
+
+#define DSI_PLL_CONTROL DSI_REG(0x300 + 0x0000)
+#define DSI_PLL_STATUS DSI_REG(0x300 + 0x0004)
+#define DSI_PLL_GO DSI_REG(0x300 + 0x0008)
+#define DSI_PLL_CONFIGURATION1 DSI_REG(0x300 + 0x000C)
+#define DSI_PLL_CONFIGURATION2 DSI_REG(0x300 + 0x0010)
+
+#define REG_GET(idx, start, end) \
+ FLD_GET(dsi_read_reg(idx), start, end)
+
+#define REG_FLD_MOD(idx, val, start, end) \
+ dsi_write_reg(idx, FLD_MOD(dsi_read_reg(idx), val, start, end))
+
+/* Global interrupts */
+#define DSI_IRQ_VC0 (1 << 0)
+#define DSI_IRQ_VC1 (1 << 1)
+#define DSI_IRQ_VC2 (1 << 2)
+#define DSI_IRQ_VC3 (1 << 3)
+#define DSI_IRQ_WAKEUP (1 << 4)
+#define DSI_IRQ_RESYNC (1 << 5)
+#define DSI_IRQ_PLL_LOCK (1 << 7)
+#define DSI_IRQ_PLL_UNLOCK (1 << 8)
+#define DSI_IRQ_PLL_RECALL (1 << 9)
+#define DSI_IRQ_COMPLEXIO_ERR (1 << 10)
+#define DSI_IRQ_HS_TX_TIMEOUT (1 << 14)
+#define DSI_IRQ_LP_RX_TIMEOUT (1 << 15)
+#define DSI_IRQ_TE_TRIGGER (1 << 16)
+#define DSI_IRQ_ACK_TRIGGER (1 << 17)
+#define DSI_IRQ_SYNC_LOST (1 << 18)
+#define DSI_IRQ_LDO_POWER_GOOD (1 << 19)
+#define DSI_IRQ_TA_TIMEOUT (1 << 20)
+#define DSI_IRQ_ERROR_MASK \
+ (DSI_IRQ_HS_TX_TIMEOUT | DSI_IRQ_LP_RX_TIMEOUT | DSI_IRQ_SYNC_LOST | \
+ DSI_IRQ_TA_TIMEOUT)
+#define DSI_IRQ_CHANNEL_MASK 0xf
+
+/* Virtual channel interrupts */
+#define DSI_VC_IRQ_CS (1 << 0)
+#define DSI_VC_IRQ_ECC_CORR (1 << 1)
+#define DSI_VC_IRQ_PACKET_SENT (1 << 2)
+#define DSI_VC_IRQ_FIFO_TX_OVF (1 << 3)
+#define DSI_VC_IRQ_FIFO_RX_OVF (1 << 4)
+#define DSI_VC_IRQ_BTA (1 << 5)
+#define DSI_VC_IRQ_ECC_NO_CORR (1 << 6)
+#define DSI_VC_IRQ_FIFO_TX_UDF (1 << 7)
+#define DSI_VC_IRQ_PP_BUSY_CHANGE (1 << 8)
+#define DSI_VC_IRQ_ERROR_MASK \
+ (DSI_VC_IRQ_CS | DSI_VC_IRQ_ECC_CORR | DSI_VC_IRQ_FIFO_TX_OVF | \
+ DSI_VC_IRQ_FIFO_RX_OVF | DSI_VC_IRQ_ECC_NO_CORR | \
+ DSI_VC_IRQ_FIFO_TX_UDF)
+
+/* ComplexIO interrupts */
+#define DSI_CIO_IRQ_ERRSYNCESC1 (1 << 0)
+#define DSI_CIO_IRQ_ERRSYNCESC2 (1 << 1)
+#define DSI_CIO_IRQ_ERRSYNCESC3 (1 << 2)
+#define DSI_CIO_IRQ_ERRESC1 (1 << 5)
+#define DSI_CIO_IRQ_ERRESC2 (1 << 6)
+#define DSI_CIO_IRQ_ERRESC3 (1 << 7)
+#define DSI_CIO_IRQ_ERRCONTROL1 (1 << 10)
+#define DSI_CIO_IRQ_ERRCONTROL2 (1 << 11)
+#define DSI_CIO_IRQ_ERRCONTROL3 (1 << 12)
+#define DSI_CIO_IRQ_STATEULPS1 (1 << 15)
+#define DSI_CIO_IRQ_STATEULPS2 (1 << 16)
+#define DSI_CIO_IRQ_STATEULPS3 (1 << 17)
+#define DSI_CIO_IRQ_ERRCONTENTIONLP0_1 (1 << 20)
+#define DSI_CIO_IRQ_ERRCONTENTIONLP1_1 (1 << 21)
+#define DSI_CIO_IRQ_ERRCONTENTIONLP0_2 (1 << 22)
+#define DSI_CIO_IRQ_ERRCONTENTIONLP1_2 (1 << 23)
+#define DSI_CIO_IRQ_ERRCONTENTIONLP0_3 (1 << 24)
+#define DSI_CIO_IRQ_ERRCONTENTIONLP1_3 (1 << 25)
+#define DSI_CIO_IRQ_ULPSACTIVENOT_ALL0 (1 << 30)
+#define DSI_CIO_IRQ_ULPSACTIVENOT_ALL1 (1 << 31)
+
+#define DSI_DT_DCS_SHORT_WRITE_0 0x05
+#define DSI_DT_DCS_SHORT_WRITE_1 0x15
+#define DSI_DT_DCS_READ 0x06
+#define DSI_DT_SET_MAX_RET_PKG_SIZE 0x37
+#define DSI_DT_NULL_PACKET 0x09
+#define DSI_DT_DCS_LONG_WRITE 0x39
+
+#define DSI_DT_RX_ACK_WITH_ERR 0x02
+#define DSI_DT_RX_DCS_LONG_READ 0x1c
+#define DSI_DT_RX_SHORT_READ_1 0x21
+#define DSI_DT_RX_SHORT_READ_2 0x22
+
+#define FINT_MAX 2100000
+#define FINT_MIN 750000
+#define REGN_MAX (1 << 7)
+#define REGM_MAX ((1 << 11) - 1)
+#define REGM3_MAX (1 << 4)
+#define REGM4_MAX (1 << 4)
+#define LP_DIV_MAX ((1 << 13) - 1)
+
+enum fifo_size {
+ DSI_FIFO_SIZE_0 = 0,
+ DSI_FIFO_SIZE_32 = 1,
+ DSI_FIFO_SIZE_64 = 2,
+ DSI_FIFO_SIZE_96 = 3,
+ DSI_FIFO_SIZE_128 = 4,
+};
+
+enum dsi_vc_mode {
+ DSI_VC_MODE_L4 = 0,
+ DSI_VC_MODE_VP,
+};
+
+struct dsi_update_region {
+ bool dirty;
+ u16 x, y, w, h;
+ struct omap_dss_device *device;
+};
+
+static struct
+{
+ void __iomem *base;
+
+ struct dsi_clock_info current_cinfo;
+
+ struct regulator *vdds_dsi_reg;
+
+ struct {
+ enum dsi_vc_mode mode;
+ struct omap_dss_device *dssdev;
+ enum fifo_size fifo_size;
+ int dest_per; /* destination peripheral 0-3 */
+ } vc[4];
+
+ struct mutex lock;
+ struct mutex bus_lock;
+
+ unsigned pll_locked;
+
+ struct completion bta_completion;
+
+ struct task_struct *thread;
+ wait_queue_head_t waitqueue;
+
+ spinlock_t update_lock;
+ bool framedone_received;
+ struct dsi_update_region update_region;
+ struct dsi_update_region active_update_region;
+ struct completion update_completion;
+
+ enum omap_dss_update_mode user_update_mode;
+ enum omap_dss_update_mode update_mode;
+ bool te_enabled;
+ bool use_ext_te;
+
+#ifdef DSI_CATCH_MISSING_TE
+ struct timer_list te_timer;
+#endif
+
+ unsigned long cache_req_pck;
+ unsigned long cache_clk_freq;
+ struct dsi_clock_info cache_cinfo;
+
+ u32 errors;
+ spinlock_t errors_lock;
+#ifdef DEBUG
+ ktime_t perf_setup_time;
+ ktime_t perf_start_time;
+ ktime_t perf_start_time_auto;
+ int perf_measure_frames;
+#endif
+ int debug_read;
+ int debug_write;
+} dsi;
+
+#ifdef DEBUG
+static unsigned int dsi_perf;
+module_param_named(dsi_perf, dsi_perf, bool, 0644);
+#endif
+
+static inline void dsi_write_reg(const struct dsi_reg idx, u32 val)
+{
+ __raw_writel(val, dsi.base + idx.idx);
+}
+
+static inline u32 dsi_read_reg(const struct dsi_reg idx)
+{
+ return __raw_readl(dsi.base + idx.idx);
+}
+
+
+void dsi_save_context(void)
+{
+}
+
+void dsi_restore_context(void)
+{
+}
+
+void dsi_bus_lock(void)
+{
+ mutex_lock(&dsi.bus_lock);
+}
+EXPORT_SYMBOL(dsi_bus_lock);
+
+void dsi_bus_unlock(void)
+{
+ mutex_unlock(&dsi.bus_lock);
+}
+EXPORT_SYMBOL(dsi_bus_unlock);
+
+static inline int wait_for_bit_change(const struct dsi_reg idx, int bitnum,
+ int value)
+{
+ int t = 100000;
+
+ while (REG_GET(idx, bitnum, bitnum) != value) {
+ if (--t == 0)
+ return !value;
+ }
+
+ return value;
+}
+
+#ifdef DEBUG
+static void dsi_perf_mark_setup(void)
+{
+ dsi.perf_setup_time = ktime_get();
+}
+
+static void dsi_perf_mark_start(void)
+{
+ dsi.perf_start_time = ktime_get();
+}
+
+static void dsi_perf_mark_start_auto(void)
+{
+ dsi.perf_measure_frames = 0;
+ dsi.perf_start_time_auto = ktime_get();
+}
+
+static void dsi_perf_show(const char *name)
+{
+ ktime_t t, setup_time, trans_time;
+ u32 total_bytes;
+ u32 setup_us, trans_us, total_us;
+
+ if (!dsi_perf)
+ return;
+
+ if (dsi.update_mode == OMAP_DSS_UPDATE_DISABLED)
+ return;
+
+ t = ktime_get();
+
+ setup_time = ktime_sub(dsi.perf_start_time, dsi.perf_setup_time);
+ setup_us = (u32)ktime_to_us(setup_time);
+ if (setup_us == 0)
+ setup_us = 1;
+
+ trans_time = ktime_sub(t, dsi.perf_start_time);
+ trans_us = (u32)ktime_to_us(trans_time);
+ if (trans_us == 0)
+ trans_us = 1;
+
+ total_us = setup_us + trans_us;
+
+ total_bytes = dsi.active_update_region.w *
+ dsi.active_update_region.h *
+ dsi.active_update_region.device->ctrl.pixel_size / 8;
+
+ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO) {
+ static u32 s_total_trans_us, s_total_setup_us;
+ static u32 s_min_trans_us = 0xffffffff, s_min_setup_us;
+ static u32 s_max_trans_us, s_max_setup_us;
+ const int numframes = 100;
+ ktime_t total_time_auto;
+ u32 total_time_auto_us;
+
+ dsi.perf_measure_frames++;
+
+ if (setup_us < s_min_setup_us)
+ s_min_setup_us = setup_us;
+
+ if (setup_us > s_max_setup_us)
+ s_max_setup_us = setup_us;
+
+ s_total_setup_us += setup_us;
+
+ if (trans_us < s_min_trans_us)
+ s_min_trans_us = trans_us;
+
+ if (trans_us > s_max_trans_us)
+ s_max_trans_us = trans_us;
+
+ s_total_trans_us += trans_us;
+
+ if (dsi.perf_measure_frames < numframes)
+ return;
+
+ total_time_auto = ktime_sub(t, dsi.perf_start_time_auto);
+ total_time_auto_us = (u32)ktime_to_us(total_time_auto);
+
+ printk(KERN_INFO "DSI(%s): %u fps, setup %u/%u/%u, "
+ "trans %u/%u/%u\n",
+ name,
+ 1000 * 1000 * numframes / total_time_auto_us,
+ s_min_setup_us,
+ s_max_setup_us,
+ s_total_setup_us / numframes,
+ s_min_trans_us,
+ s_max_trans_us,
+ s_total_trans_us / numframes);
+
+ s_total_setup_us = 0;
+ s_min_setup_us = 0xffffffff;
+ s_max_setup_us = 0;
+ s_total_trans_us = 0;
+ s_min_trans_us = 0xffffffff;
+ s_max_trans_us = 0;
+ dsi_perf_mark_start_auto();
+ } else {
+ printk(KERN_INFO "DSI(%s): %u us + %u us = %u us (%uHz), "
+ "%u bytes, %u kbytes/sec\n",
+ name,
+ setup_us,
+ trans_us,
+ total_us,
+ 1000*1000 / total_us,
+ total_bytes,
+ total_bytes * 1000 / total_us);
+ }
+}
+#else
+#define dsi_perf_mark_setup()
+#define dsi_perf_mark_start()
+#define dsi_perf_mark_start_auto()
+#define dsi_perf_show(x)
+#endif
+
+static void print_irq_status(u32 status)
+{
+#ifndef VERBOSE_IRQ
+ if ((status & ~DSI_IRQ_CHANNEL_MASK) == 0)
+ return;
+#endif
+ printk(KERN_DEBUG "DSI IRQ: 0x%x: ", status);
+
+#define PIS(x) \
+ if (status & DSI_IRQ_##x) \
+ printk(#x " ");
+#ifdef VERBOSE_IRQ
+ PIS(VC0);
+ PIS(VC1);
+ PIS(VC2);
+ PIS(VC3);
+#endif
+ PIS(WAKEUP);
+ PIS(RESYNC);
+ PIS(PLL_LOCK);
+ PIS(PLL_UNLOCK);
+ PIS(PLL_RECALL);
+ PIS(COMPLEXIO_ERR);
+ PIS(HS_TX_TIMEOUT);
+ PIS(LP_RX_TIMEOUT);
+ PIS(TE_TRIGGER);
+ PIS(ACK_TRIGGER);
+ PIS(SYNC_LOST);
+ PIS(LDO_POWER_GOOD);
+ PIS(TA_TIMEOUT);
+#undef PIS
+
+ printk("\n");
+}
+
+static void print_irq_status_vc(int channel, u32 status)
+{
+#ifndef VERBOSE_IRQ
+ if ((status & ~DSI_VC_IRQ_PACKET_SENT) == 0)
+ return;
+#endif
+ printk(KERN_DEBUG "DSI VC(%d) IRQ 0x%x: ", channel, status);
+
+#define PIS(x) \
+ if (status & DSI_VC_IRQ_##x) \
+ printk(#x " ");
+ PIS(CS);
+ PIS(ECC_CORR);
+#ifdef VERBOSE_IRQ
+ PIS(PACKET_SENT);
+#endif
+ PIS(FIFO_TX_OVF);
+ PIS(FIFO_RX_OVF);
+ PIS(BTA);
+ PIS(ECC_NO_CORR);
+ PIS(FIFO_TX_UDF);
+ PIS(PP_BUSY_CHANGE);
+#undef PIS
+ printk("\n");
+}
+
+static void print_irq_status_cio(u32 status)
+{
+ printk(KERN_DEBUG "DSI CIO IRQ 0x%x: ", status);
+
+#define PIS(x) \
+ if (status & DSI_CIO_IRQ_##x) \
+ printk(#x " ");
+ PIS(ERRSYNCESC1);
+ PIS(ERRSYNCESC2);
+ PIS(ERRSYNCESC3);
+ PIS(ERRESC1);
+ PIS(ERRESC2);
+ PIS(ERRESC3);
+ PIS(ERRCONTROL1);
+ PIS(ERRCONTROL2);
+ PIS(ERRCONTROL3);
+ PIS(STATEULPS1);
+ PIS(STATEULPS2);
+ PIS(STATEULPS3);
+ PIS(ERRCONTENTIONLP0_1);
+ PIS(ERRCONTENTIONLP1_1);
+ PIS(ERRCONTENTIONLP0_2);
+ PIS(ERRCONTENTIONLP1_2);
+ PIS(ERRCONTENTIONLP0_3);
+ PIS(ERRCONTENTIONLP1_3);
+ PIS(ULPSACTIVENOT_ALL0);
+ PIS(ULPSACTIVENOT_ALL1);
+#undef PIS
+
+ printk("\n");
+}
+
+static int debug_irq;
+
+/* called from dss */
+void dsi_irq_handler(void)
+{
+ u32 irqstatus, vcstatus, ciostatus;
+ int i;
+
+ irqstatus = dsi_read_reg(DSI_IRQSTATUS);
+
+ if (irqstatus & DSI_IRQ_ERROR_MASK) {
+ DSSERR("DSI error, irqstatus %x\n", irqstatus);
+ print_irq_status(irqstatus);
+ spin_lock(&dsi.errors_lock);
+ dsi.errors |= irqstatus & DSI_IRQ_ERROR_MASK;
+ spin_unlock(&dsi.errors_lock);
+ } else if (debug_irq) {
+ print_irq_status(irqstatus);
+ }
+
+#ifdef DSI_CATCH_MISSING_TE
+ if (irqstatus & DSI_IRQ_TE_TRIGGER)
+ del_timer(&dsi.te_timer);
+#endif
+
+ for (i = 0; i < 4; ++i) {
+ if ((irqstatus & (1<<i)) == 0)
+ continue;
+
+ vcstatus = dsi_read_reg(DSI_VC_IRQSTATUS(i));
+
+ if (vcstatus & DSI_VC_IRQ_BTA)
+ complete(&dsi.bta_completion);
+
+ if (vcstatus & DSI_VC_IRQ_ERROR_MASK) {
+ DSSERR("DSI VC(%d) error, vc irqstatus %x\n",
+ i, vcstatus);
+ print_irq_status_vc(i, vcstatus);
+ } else if (debug_irq) {
+ print_irq_status_vc(i, vcstatus);
+ }
+
+ dsi_write_reg(DSI_VC_IRQSTATUS(i), vcstatus);
+ /* flush posted write */
+ dsi_read_reg(DSI_VC_IRQSTATUS(i));
+ }
+
+ if (irqstatus & DSI_IRQ_COMPLEXIO_ERR) {
+ ciostatus = dsi_read_reg(DSI_COMPLEXIO_IRQ_STATUS);
+
+ dsi_write_reg(DSI_COMPLEXIO_IRQ_STATUS, ciostatus);
+ /* flush posted write */
+ dsi_read_reg(DSI_COMPLEXIO_IRQ_STATUS);
+
+ DSSERR("DSI CIO error, cio irqstatus %x\n", ciostatus);
+ print_irq_status_cio(ciostatus);
+ }
+
+ dsi_write_reg(DSI_IRQSTATUS, irqstatus & ~DSI_IRQ_CHANNEL_MASK);
+ /* flush posted write */
+ dsi_read_reg(DSI_IRQSTATUS);
+}
+
+
+static void _dsi_initialize_irq(void)
+{
+ u32 l;
+ int i;
+
+ /* disable all interrupts */
+ dsi_write_reg(DSI_IRQENABLE, 0);
+ for (i = 0; i < 4; ++i)
+ dsi_write_reg(DSI_VC_IRQENABLE(i), 0);
+ dsi_write_reg(DSI_COMPLEXIO_IRQ_ENABLE, 0);
+
+ /* clear interrupt status */
+ l = dsi_read_reg(DSI_IRQSTATUS);
+ dsi_write_reg(DSI_IRQSTATUS, l & ~DSI_IRQ_CHANNEL_MASK);
+
+ for (i = 0; i < 4; ++i) {
+ l = dsi_read_reg(DSI_VC_IRQSTATUS(i));
+ dsi_write_reg(DSI_VC_IRQSTATUS(i), l);
+ }
+
+ l = dsi_read_reg(DSI_COMPLEXIO_IRQ_STATUS);
+ dsi_write_reg(DSI_COMPLEXIO_IRQ_STATUS, l);
+
+ /* enable error irqs */
+ l = DSI_IRQ_ERROR_MASK;
+#ifdef DSI_CATCH_MISSING_TE
+ l |= DSI_IRQ_TE_TRIGGER;
+#endif
+ dsi_write_reg(DSI_IRQENABLE, l);
+
+ l = DSI_VC_IRQ_ERROR_MASK;
+ for (i = 0; i < 4; ++i)
+ dsi_write_reg(DSI_VC_IRQENABLE(i), l);
+
+ /* XXX zonda responds incorrectly, causing control error:
+ Exit from LP-ESC mode to LP11 uses wrong transition states on the
+ data lines LP0 and LN0. */
+ dsi_write_reg(DSI_COMPLEXIO_IRQ_ENABLE,
+ -1 & (~DSI_CIO_IRQ_ERRCONTROL2));
+}
+
+static u32 dsi_get_errors(void)
+{
+ unsigned long flags;
+ u32 e;
+ spin_lock_irqsave(&dsi.errors_lock, flags);
+ e = dsi.errors;
+ dsi.errors = 0;
+ spin_unlock_irqrestore(&dsi.errors_lock, flags);
+ return e;
+}
+
+static void dsi_vc_enable_bta_irq(int channel)
+{
+ u32 l;
+
+ dsi_write_reg(DSI_VC_IRQSTATUS(channel), DSI_VC_IRQ_BTA);
+
+ l = dsi_read_reg(DSI_VC_IRQENABLE(channel));
+ l |= DSI_VC_IRQ_BTA;
+ dsi_write_reg(DSI_VC_IRQENABLE(channel), l);
+}
+
+static void dsi_vc_disable_bta_irq(int channel)
+{
+ u32 l;
+
+ l = dsi_read_reg(DSI_VC_IRQENABLE(channel));
+ l &= ~DSI_VC_IRQ_BTA;
+ dsi_write_reg(DSI_VC_IRQENABLE(channel), l);
+}
+
+/* DSI func clock. this could also be DSI2_PLL_FCLK */
+static inline void enable_clocks(bool enable)
+{
+ if (enable)
+ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
+ else
+ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
+}
+
+/* source clock for DSI PLL. this could also be PCLKFREE */
+static inline void dsi_enable_pll_clock(bool enable)
+{
+ if (enable)
+ dss_clk_enable(DSS_CLK_FCK2);
+ else
+ dss_clk_disable(DSS_CLK_FCK2);
+
+ if (enable && dsi.pll_locked) {
+ if (wait_for_bit_change(DSI_PLL_STATUS, 1, 1) != 1)
+ DSSERR("cannot lock PLL when enabling clocks\n");
+ }
+}
+
+#ifdef DEBUG
+static void _dsi_print_reset_status(void)
+{
+ u32 l;
+
+ if (!dss_debug)
+ return;
+
+ /* A dummy read using the SCP interface to any DSIPHY register is
+ * required after DSIPHY reset to complete the reset of the DSI complex
+ * I/O. */
+ l = dsi_read_reg(DSI_DSIPHY_CFG5);
+
+ printk(KERN_DEBUG "DSI resets: ");
+
+ l = dsi_read_reg(DSI_PLL_STATUS);
+ printk("PLL (%d) ", FLD_GET(l, 0, 0));
+
+ l = dsi_read_reg(DSI_COMPLEXIO_CFG1);
+ printk("CIO (%d) ", FLD_GET(l, 29, 29));
+
+ l = dsi_read_reg(DSI_DSIPHY_CFG5);
+ printk("PHY (%x, %d, %d, %d)\n",
+ FLD_GET(l, 28, 26),
+ FLD_GET(l, 29, 29),
+ FLD_GET(l, 30, 30),
+ FLD_GET(l, 31, 31));
+}
+#else
+#define _dsi_print_reset_status()
+#endif
+
+static inline int dsi_if_enable(bool enable)
+{
+ DSSDBG("dsi_if_enable(%d)\n", enable);
+
+ enable = enable ? 1 : 0;
+ REG_FLD_MOD(DSI_CTRL, enable, 0, 0); /* IF_EN */
+
+ if (wait_for_bit_change(DSI_CTRL, 0, enable) != enable) {
+ DSSERR("Failed to set dsi_if_enable to %d\n", enable);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+unsigned long dsi_get_dsi1_pll_rate(void)
+{
+ return dsi.current_cinfo.dsi1_pll_fclk;
+}
+
+static unsigned long dsi_get_dsi2_pll_rate(void)
+{
+ return dsi.current_cinfo.dsi2_pll_fclk;
+}
+
+static unsigned long dsi_get_txbyteclkhs(void)
+{
+ return dsi.current_cinfo.clkin4ddr / 16;
+}
+
+static unsigned long dsi_fclk_rate(void)
+{
+ unsigned long r;
+
+ if (dss_get_dsi_clk_source() == 0) {
+ /* DSI FCLK source is DSS1_ALWON_FCK, which is dss1_fck */
+ r = dss_clk_get_rate(DSS_CLK_FCK1);
+ } else {
+ /* DSI FCLK source is DSI2_PLL_FCLK */
+ r = dsi_get_dsi2_pll_rate();
+ }
+
+ return r;
+}
+
+static int dsi_set_lp_clk_divisor(struct omap_dss_device *dssdev)
+{
+ unsigned long dsi_fclk;
+ unsigned lp_clk_div;
+ unsigned long lp_clk;
+
+ lp_clk_div = dssdev->phy.dsi.div.lp_clk_div;
+
+ if (lp_clk_div == 0 || lp_clk_div > LP_DIV_MAX)
+ return -EINVAL;
+
+ dsi_fclk = dsi_fclk_rate();
+
+ lp_clk = dsi_fclk / 2 / lp_clk_div;
+
+ DSSDBG("LP_CLK_DIV %u, LP_CLK %lu\n", lp_clk_div, lp_clk);
+ dsi.current_cinfo.lp_clk = lp_clk;
+ dsi.current_cinfo.lp_clk_div = lp_clk_div;
+
+ REG_FLD_MOD(DSI_CLK_CTRL, lp_clk_div, 12, 0); /* LP_CLK_DIVISOR */
+
+ REG_FLD_MOD(DSI_CLK_CTRL, dsi_fclk > 30000000 ? 1 : 0,
+ 21, 21); /* LP_RX_SYNCHRO_ENABLE */
+
+ return 0;
+}
+
+
+enum dsi_pll_power_state {
+ DSI_PLL_POWER_OFF = 0x0,
+ DSI_PLL_POWER_ON_HSCLK = 0x1,
+ DSI_PLL_POWER_ON_ALL = 0x2,
+ DSI_PLL_POWER_ON_DIV = 0x3,
+};
+
+static int dsi_pll_power(enum dsi_pll_power_state state)
+{
+ int t = 0;
+
+ REG_FLD_MOD(DSI_CLK_CTRL, state, 31, 30); /* PLL_PWR_CMD */
+
+ /* PLL_PWR_STATUS */
+ while (FLD_GET(dsi_read_reg(DSI_CLK_CTRL), 29, 28) != state) {
+ udelay(1);
+ if (t++ > 1000) {
+ DSSERR("Failed to set DSI PLL power mode to %d\n",
+ state);
+ return -ENODEV;
+ }
+ }
+
+ return 0;
+}
+
+/* calculate clock rates using dividers in cinfo */
+static int dsi_calc_clock_rates(struct dsi_clock_info *cinfo)
+{
+ if (cinfo->regn == 0 || cinfo->regn > REGN_MAX)
+ return -EINVAL;
+
+ if (cinfo->regm == 0 || cinfo->regm > REGM_MAX)
+ return -EINVAL;
+
+ if (cinfo->regm3 > REGM3_MAX)
+ return -EINVAL;
+
+ if (cinfo->regm4 > REGM4_MAX)
+ return -EINVAL;
+
+ if (cinfo->use_dss2_fck) {
+ cinfo->clkin = dss_clk_get_rate(DSS_CLK_FCK2);
+ /* XXX it is unclear if highfreq should be used
+ * with DSS2_FCK source also */
+ cinfo->highfreq = 0;
+ } else {
+ cinfo->clkin = dispc_pclk_rate();
+
+ if (cinfo->clkin < 32000000)
+ cinfo->highfreq = 0;
+ else
+ cinfo->highfreq = 1;
+ }
+
+ cinfo->fint = cinfo->clkin / (cinfo->regn * (cinfo->highfreq ? 2 : 1));
+
+ if (cinfo->fint > FINT_MAX || cinfo->fint < FINT_MIN)
+ return -EINVAL;
+
+ cinfo->clkin4ddr = 2 * cinfo->regm * cinfo->fint;
+
+ if (cinfo->clkin4ddr > 1800 * 1000 * 1000)
+ return -EINVAL;
+
+ if (cinfo->regm3 > 0)
+ cinfo->dsi1_pll_fclk = cinfo->clkin4ddr / cinfo->regm3;
+ else
+ cinfo->dsi1_pll_fclk = 0;
+
+ if (cinfo->regm4 > 0)
+ cinfo->dsi2_pll_fclk = cinfo->clkin4ddr / cinfo->regm4;
+ else
+ cinfo->dsi2_pll_fclk = 0;
+
+ return 0;
+}
+
+int dsi_pll_calc_clock_div_pck(bool is_tft, unsigned long req_pck,
+ struct dsi_clock_info *dsi_cinfo,
+ struct dispc_clock_info *dispc_cinfo)
+{
+ struct dsi_clock_info cur, best;
+ struct dispc_clock_info best_dispc;
+ int min_fck_per_pck;
+ int match = 0;
+ unsigned long dss_clk_fck2;
+
+ dss_clk_fck2 = dss_clk_get_rate(DSS_CLK_FCK2);
+
+ if (req_pck == dsi.cache_req_pck &&
+ dsi.cache_cinfo.clkin == dss_clk_fck2) {
+ DSSDBG("DSI clock info found from cache\n");
+ *dsi_cinfo = dsi.cache_cinfo;
+ dispc_find_clk_divs(is_tft, req_pck, dsi_cinfo->dsi1_pll_fclk,
+ dispc_cinfo);
+ return 0;
+ }
+
+ min_fck_per_pck = CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK;
+
+ if (min_fck_per_pck &&
+ req_pck * min_fck_per_pck > DISPC_MAX_FCK) {
+ DSSERR("Requested pixel clock not possible with the current "
+ "OMAP2_DSS_MIN_FCK_PER_PCK setting. Turning "
+ "the constraint off.\n");
+ min_fck_per_pck = 0;
+ }
+
+ DSSDBG("dsi_pll_calc\n");
+
+retry:
+ memset(&best, 0, sizeof(best));
+ memset(&best_dispc, 0, sizeof(best_dispc));
+
+ memset(&cur, 0, sizeof(cur));
+ cur.clkin = dss_clk_fck2;
+ cur.use_dss2_fck = 1;
+ cur.highfreq = 0;
+
+ /* no highfreq: 0.75MHz < Fint = clkin / regn < 2.1MHz */
+ /* highfreq: 0.75MHz < Fint = clkin / (2*regn) < 2.1MHz */
+ /* To reduce PLL lock time, keep Fint high (around 2 MHz) */
+ for (cur.regn = 1; cur.regn < REGN_MAX; ++cur.regn) {
+ if (cur.highfreq == 0)
+ cur.fint = cur.clkin / cur.regn;
+ else
+ cur.fint = cur.clkin / (2 * cur.regn);
+
+ if (cur.fint > FINT_MAX || cur.fint < FINT_MIN)
+ continue;
+
+ /* DSIPHY(MHz) = (2 * regm / regn) * (clkin / (highfreq + 1)) */
+ for (cur.regm = 1; cur.regm < REGM_MAX; ++cur.regm) {
+ unsigned long a, b;
+
+ a = 2 * cur.regm * (cur.clkin/1000);
+ b = cur.regn * (cur.highfreq + 1);
+ cur.clkin4ddr = a / b * 1000;
+
+ if (cur.clkin4ddr > 1800 * 1000 * 1000)
+ break;
+
+ /* DSI1_PLL_FCLK(MHz) = DSIPHY(MHz) / regm3 < 173MHz */
+ for (cur.regm3 = 1; cur.regm3 < REGM3_MAX;
+ ++cur.regm3) {
+ struct dispc_clock_info cur_dispc;
+ cur.dsi1_pll_fclk = cur.clkin4ddr / cur.regm3;
+
+ /* this will narrow down the search a bit,
+ * but still give pixclocks below what was
+ * requested */
+ if (cur.dsi1_pll_fclk < req_pck)
+ break;
+
+ if (cur.dsi1_pll_fclk > DISPC_MAX_FCK)
+ continue;
+
+ if (min_fck_per_pck &&
+ cur.dsi1_pll_fclk <
+ req_pck * min_fck_per_pck)
+ continue;
+
+ match = 1;
+
+ dispc_find_clk_divs(is_tft, req_pck,
+ cur.dsi1_pll_fclk,
+ &cur_dispc);
+
+ if (abs(cur_dispc.pck - req_pck) <
+ abs(best_dispc.pck - req_pck)) {
+ best = cur;
+ best_dispc = cur_dispc;
+
+ if (cur_dispc.pck == req_pck)
+ goto found;
+ }
+ }
+ }
+ }
+found:
+ if (!match) {
+ if (min_fck_per_pck) {
+ DSSERR("Could not find suitable clock settings.\n"
+ "Turning FCK/PCK constraint off and"
+ "trying again.\n");
+ min_fck_per_pck = 0;
+ goto retry;
+ }
+
+ DSSERR("Could not find suitable clock settings.\n");
+
+ return -EINVAL;
+ }
+
+ /* DSI2_PLL_FCLK (regm4) is not used */
+ best.regm4 = 0;
+ best.dsi2_pll_fclk = 0;
+
+ if (dsi_cinfo)
+ *dsi_cinfo = best;
+ if (dispc_cinfo)
+ *dispc_cinfo = best_dispc;
+
+ dsi.cache_req_pck = req_pck;
+ dsi.cache_clk_freq = 0;
+ dsi.cache_cinfo = best;
+
+ return 0;
+}
+
+int dsi_pll_set_clock_div(struct dsi_clock_info *cinfo)
+{
+ int r = 0;
+ u32 l;
+ int f;
+
+ DSSDBGF();
+
+ dsi.current_cinfo.fint = cinfo->fint;
+ dsi.current_cinfo.clkin4ddr = cinfo->clkin4ddr;
+ dsi.current_cinfo.dsi1_pll_fclk = cinfo->dsi1_pll_fclk;
+ dsi.current_cinfo.dsi2_pll_fclk = cinfo->dsi2_pll_fclk;
+
+ dsi.current_cinfo.regn = cinfo->regn;
+ dsi.current_cinfo.regm = cinfo->regm;
+ dsi.current_cinfo.regm3 = cinfo->regm3;
+ dsi.current_cinfo.regm4 = cinfo->regm4;
+
+ DSSDBG("DSI Fint %ld\n", cinfo->fint);
+
+ DSSDBG("clkin (%s) rate %ld, highfreq %d\n",
+ cinfo->use_dss2_fck ? "dss2_fck" : "pclkfree",
+ cinfo->clkin,
+ cinfo->highfreq);
+
+ /* DSIPHY == CLKIN4DDR */
+ DSSDBG("CLKIN4DDR = 2 * %d / %d * %lu / %d = %lu\n",
+ cinfo->regm,
+ cinfo->regn,
+ cinfo->clkin,
+ cinfo->highfreq + 1,
+ cinfo->clkin4ddr);
+
+ DSSDBG("Data rate on 1 DSI lane %ld Mbps\n",
+ cinfo->clkin4ddr / 1000 / 1000 / 2);
+
+ DSSDBG("Clock lane freq %ld Hz\n", cinfo->clkin4ddr / 4);
+
+ DSSDBG("regm3 = %d, dsi1_pll_fclk = %lu\n",
+ cinfo->regm3, cinfo->dsi1_pll_fclk);
+ DSSDBG("regm4 = %d, dsi2_pll_fclk = %lu\n",
+ cinfo->regm4, cinfo->dsi2_pll_fclk);
+
+ REG_FLD_MOD(DSI_PLL_CONTROL, 0, 0, 0); /* DSI_PLL_AUTOMODE = manual */
+
+ l = dsi_read_reg(DSI_PLL_CONFIGURATION1);
+ l = FLD_MOD(l, 1, 0, 0); /* DSI_PLL_STOPMODE */
+ l = FLD_MOD(l, cinfo->regn - 1, 7, 1); /* DSI_PLL_REGN */
+ l = FLD_MOD(l, cinfo->regm, 18, 8); /* DSI_PLL_REGM */
+ l = FLD_MOD(l, cinfo->regm3 > 0 ? cinfo->regm3 - 1 : 0,
+ 22, 19); /* DSI_CLOCK_DIV */
+ l = FLD_MOD(l, cinfo->regm4 > 0 ? cinfo->regm4 - 1 : 0,
+ 26, 23); /* DSIPROTO_CLOCK_DIV */
+ dsi_write_reg(DSI_PLL_CONFIGURATION1, l);
+
+ BUG_ON(cinfo->fint < 750000 || cinfo->fint > 2100000);
+ if (cinfo->fint < 1000000)
+ f = 0x3;
+ else if (cinfo->fint < 1250000)
+ f = 0x4;
+ else if (cinfo->fint < 1500000)
+ f = 0x5;
+ else if (cinfo->fint < 1750000)
+ f = 0x6;
+ else
+ f = 0x7;
+
+ l = dsi_read_reg(DSI_PLL_CONFIGURATION2);
+ l = FLD_MOD(l, f, 4, 1); /* DSI_PLL_FREQSEL */
+ l = FLD_MOD(l, cinfo->use_dss2_fck ? 0 : 1,
+ 11, 11); /* DSI_PLL_CLKSEL */
+ l = FLD_MOD(l, cinfo->highfreq,
+ 12, 12); /* DSI_PLL_HIGHFREQ */
+ l = FLD_MOD(l, 1, 13, 13); /* DSI_PLL_REFEN */
+ l = FLD_MOD(l, 0, 14, 14); /* DSIPHY_CLKINEN */
+ l = FLD_MOD(l, 1, 20, 20); /* DSI_HSDIVBYPASS */
+ dsi_write_reg(DSI_PLL_CONFIGURATION2, l);
+
+ REG_FLD_MOD(DSI_PLL_GO, 1, 0, 0); /* DSI_PLL_GO */
+
+ if (wait_for_bit_change(DSI_PLL_GO, 0, 0) != 0) {
+ DSSERR("dsi pll go bit not going down.\n");
+ r = -EIO;
+ goto err;
+ }
+
+ if (wait_for_bit_change(DSI_PLL_STATUS, 1, 1) != 1) {
+ DSSERR("cannot lock PLL\n");
+ r = -EIO;
+ goto err;
+ }
+
+ dsi.pll_locked = 1;
+
+ l = dsi_read_reg(DSI_PLL_CONFIGURATION2);
+ l = FLD_MOD(l, 0, 0, 0); /* DSI_PLL_IDLE */
+ l = FLD_MOD(l, 0, 5, 5); /* DSI_PLL_PLLLPMODE */
+ l = FLD_MOD(l, 0, 6, 6); /* DSI_PLL_LOWCURRSTBY */
+ l = FLD_MOD(l, 0, 7, 7); /* DSI_PLL_TIGHTPHASELOCK */
+ l = FLD_MOD(l, 0, 8, 8); /* DSI_PLL_DRIFTGUARDEN */
+ l = FLD_MOD(l, 0, 10, 9); /* DSI_PLL_LOCKSEL */
+ l = FLD_MOD(l, 1, 13, 13); /* DSI_PLL_REFEN */
+ l = FLD_MOD(l, 1, 14, 14); /* DSIPHY_CLKINEN */
+ l = FLD_MOD(l, 0, 15, 15); /* DSI_BYPASSEN */
+ l = FLD_MOD(l, 1, 16, 16); /* DSS_CLOCK_EN */
+ l = FLD_MOD(l, 0, 17, 17); /* DSS_CLOCK_PWDN */
+ l = FLD_MOD(l, 1, 18, 18); /* DSI_PROTO_CLOCK_EN */
+ l = FLD_MOD(l, 0, 19, 19); /* DSI_PROTO_CLOCK_PWDN */
+ l = FLD_MOD(l, 0, 20, 20); /* DSI_HSDIVBYPASS */
+ dsi_write_reg(DSI_PLL_CONFIGURATION2, l);
+
+ DSSDBG("PLL config done\n");
+err:
+ return r;
+}
+
+int dsi_pll_init(struct omap_dss_device *dssdev, bool enable_hsclk,
+ bool enable_hsdiv)
+{
+ int r = 0;
+ enum dsi_pll_power_state pwstate;
+
+ DSSDBG("PLL init\n");
+
+ enable_clocks(1);
+ dsi_enable_pll_clock(1);
+
+ r = regulator_enable(dsi.vdds_dsi_reg);
+ if (r)
+ goto err0;
+
+ /* XXX PLL does not come out of reset without this... */
+ dispc_pck_free_enable(1);
+
+ if (wait_for_bit_change(DSI_PLL_STATUS, 0, 1) != 1) {
+ DSSERR("PLL not coming out of reset.\n");
+ r = -ENODEV;
+ goto err1;
+ }
+
+ /* XXX ... but if left on, we get problems when planes do not
+ * fill the whole display. No idea about this */
+ dispc_pck_free_enable(0);
+
+ if (enable_hsclk && enable_hsdiv)
+ pwstate = DSI_PLL_POWER_ON_ALL;
+ else if (enable_hsclk)
+ pwstate = DSI_PLL_POWER_ON_HSCLK;
+ else if (enable_hsdiv)
+ pwstate = DSI_PLL_POWER_ON_DIV;
+ else
+ pwstate = DSI_PLL_POWER_OFF;
+
+ r = dsi_pll_power(pwstate);
+
+ if (r)
+ goto err1;
+
+ DSSDBG("PLL init done\n");
+
+ return 0;
+err1:
+ regulator_disable(dsi.vdds_dsi_reg);
+err0:
+ enable_clocks(0);
+ dsi_enable_pll_clock(0);
+ return r;
+}
+
+void dsi_pll_uninit(void)
+{
+ enable_clocks(0);
+ dsi_enable_pll_clock(0);
+
+ dsi.pll_locked = 0;
+ dsi_pll_power(DSI_PLL_POWER_OFF);
+ regulator_disable(dsi.vdds_dsi_reg);
+ DSSDBG("PLL uninit done\n");
+}
+
+void dsi_dump_clocks(struct seq_file *s)
+{
+ int clksel;
+ struct dsi_clock_info *cinfo = &dsi.current_cinfo;
+
+ enable_clocks(1);
+
+ clksel = REG_GET(DSI_PLL_CONFIGURATION2, 11, 11);
+
+ seq_printf(s, "- DSI PLL -\n");
+
+ seq_printf(s, "dsi pll source = %s\n",
+ clksel == 0 ?
+ "dss2_alwon_fclk" : "pclkfree");
+
+ seq_printf(s, "Fint\t\t%-16luregn %u\n", cinfo->fint, cinfo->regn);
+
+ seq_printf(s, "CLKIN4DDR\t%-16luregm %u\n",
+ cinfo->clkin4ddr, cinfo->regm);
+
+ seq_printf(s, "dsi1_pll_fck\t%-16luregm3 %u\t(%s)\n",
+ cinfo->dsi1_pll_fclk,
+ cinfo->regm3,
+ dss_get_dispc_clk_source() == 0 ? "off" : "on");
+
+ seq_printf(s, "dsi2_pll_fck\t%-16luregm4 %u\t(%s)\n",
+ cinfo->dsi2_pll_fclk,
+ cinfo->regm4,
+ dss_get_dsi_clk_source() == 0 ? "off" : "on");
+
+ seq_printf(s, "- DSI -\n");
+
+ seq_printf(s, "dsi fclk source = %s\n",
+ dss_get_dsi_clk_source() == 0 ?
+ "dss1_alwon_fclk" : "dsi2_pll_fclk");
+
+ seq_printf(s, "DSI_FCLK\t%lu\n", dsi_fclk_rate());
+
+ seq_printf(s, "DDR_CLK\t\t%lu\n",
+ cinfo->clkin4ddr / 4);
+
+ seq_printf(s, "TxByteClkHS\t%lu\n", dsi_get_txbyteclkhs());
+
+ seq_printf(s, "LP_CLK\t\t%lu\n", cinfo->lp_clk);
+
+ seq_printf(s, "VP_CLK\t\t%lu\n"
+ "VP_PCLK\t\t%lu\n",
+ dispc_lclk_rate(),
+ dispc_pclk_rate());
+
+ enable_clocks(0);
+}
+
+void dsi_dump_regs(struct seq_file *s)
+{
+#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dsi_read_reg(r))
+
+ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
+
+ DUMPREG(DSI_REVISION);
+ DUMPREG(DSI_SYSCONFIG);
+ DUMPREG(DSI_SYSSTATUS);
+ DUMPREG(DSI_IRQSTATUS);
+ DUMPREG(DSI_IRQENABLE);
+ DUMPREG(DSI_CTRL);
+ DUMPREG(DSI_COMPLEXIO_CFG1);
+ DUMPREG(DSI_COMPLEXIO_IRQ_STATUS);
+ DUMPREG(DSI_COMPLEXIO_IRQ_ENABLE);
+ DUMPREG(DSI_CLK_CTRL);
+ DUMPREG(DSI_TIMING1);
+ DUMPREG(DSI_TIMING2);
+ DUMPREG(DSI_VM_TIMING1);
+ DUMPREG(DSI_VM_TIMING2);
+ DUMPREG(DSI_VM_TIMING3);
+ DUMPREG(DSI_CLK_TIMING);
+ DUMPREG(DSI_TX_FIFO_VC_SIZE);
+ DUMPREG(DSI_RX_FIFO_VC_SIZE);
+ DUMPREG(DSI_COMPLEXIO_CFG2);
+ DUMPREG(DSI_RX_FIFO_VC_FULLNESS);
+ DUMPREG(DSI_VM_TIMING4);
+ DUMPREG(DSI_TX_FIFO_VC_EMPTINESS);
+ DUMPREG(DSI_VM_TIMING5);
+ DUMPREG(DSI_VM_TIMING6);
+ DUMPREG(DSI_VM_TIMING7);
+ DUMPREG(DSI_STOPCLK_TIMING);
+
+ DUMPREG(DSI_VC_CTRL(0));
+ DUMPREG(DSI_VC_TE(0));
+ DUMPREG(DSI_VC_LONG_PACKET_HEADER(0));
+ DUMPREG(DSI_VC_LONG_PACKET_PAYLOAD(0));
+ DUMPREG(DSI_VC_SHORT_PACKET_HEADER(0));
+ DUMPREG(DSI_VC_IRQSTATUS(0));
+ DUMPREG(DSI_VC_IRQENABLE(0));
+
+ DUMPREG(DSI_VC_CTRL(1));
+ DUMPREG(DSI_VC_TE(1));
+ DUMPREG(DSI_VC_LONG_PACKET_HEADER(1));
+ DUMPREG(DSI_VC_LONG_PACKET_PAYLOAD(1));
+ DUMPREG(DSI_VC_SHORT_PACKET_HEADER(1));
+ DUMPREG(DSI_VC_IRQSTATUS(1));
+ DUMPREG(DSI_VC_IRQENABLE(1));
+
+ DUMPREG(DSI_VC_CTRL(2));
+ DUMPREG(DSI_VC_TE(2));
+ DUMPREG(DSI_VC_LONG_PACKET_HEADER(2));
+ DUMPREG(DSI_VC_LONG_PACKET_PAYLOAD(2));
+ DUMPREG(DSI_VC_SHORT_PACKET_HEADER(2));
+ DUMPREG(DSI_VC_IRQSTATUS(2));
+ DUMPREG(DSI_VC_IRQENABLE(2));
+
+ DUMPREG(DSI_VC_CTRL(3));
+ DUMPREG(DSI_VC_TE(3));
+ DUMPREG(DSI_VC_LONG_PACKET_HEADER(3));
+ DUMPREG(DSI_VC_LONG_PACKET_PAYLOAD(3));
+ DUMPREG(DSI_VC_SHORT_PACKET_HEADER(3));
+ DUMPREG(DSI_VC_IRQSTATUS(3));
+ DUMPREG(DSI_VC_IRQENABLE(3));
+
+ DUMPREG(DSI_DSIPHY_CFG0);
+ DUMPREG(DSI_DSIPHY_CFG1);
+ DUMPREG(DSI_DSIPHY_CFG2);
+ DUMPREG(DSI_DSIPHY_CFG5);
+
+ DUMPREG(DSI_PLL_CONTROL);
+ DUMPREG(DSI_PLL_STATUS);
+ DUMPREG(DSI_PLL_GO);
+ DUMPREG(DSI_PLL_CONFIGURATION1);
+ DUMPREG(DSI_PLL_CONFIGURATION2);
+
+ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
+#undef DUMPREG
+}
+
+enum dsi_complexio_power_state {
+ DSI_COMPLEXIO_POWER_OFF = 0x0,
+ DSI_COMPLEXIO_POWER_ON = 0x1,
+ DSI_COMPLEXIO_POWER_ULPS = 0x2,
+};
+
+static int dsi_complexio_power(enum dsi_complexio_power_state state)
+{
+ int t = 0;
+
+ /* PWR_CMD */
+ REG_FLD_MOD(DSI_COMPLEXIO_CFG1, state, 28, 27);
+
+ /* PWR_STATUS */
+ while (FLD_GET(dsi_read_reg(DSI_COMPLEXIO_CFG1), 26, 25) != state) {
+ udelay(1);
+ if (t++ > 1000) {
+ DSSERR("failed to set complexio power state to "
+ "%d\n", state);
+ return -ENODEV;
+ }
+ }
+
+ return 0;
+}
+
+static void dsi_complexio_config(struct omap_dss_device *dssdev)
+{
+ u32 r;
+
+ int clk_lane = dssdev->phy.dsi.clk_lane;
+ int data1_lane = dssdev->phy.dsi.data1_lane;
+ int data2_lane = dssdev->phy.dsi.data2_lane;
+ int clk_pol = dssdev->phy.dsi.clk_pol;
+ int data1_pol = dssdev->phy.dsi.data1_pol;
+ int data2_pol = dssdev->phy.dsi.data2_pol;
+
+ r = dsi_read_reg(DSI_COMPLEXIO_CFG1);
+ r = FLD_MOD(r, clk_lane, 2, 0);
+ r = FLD_MOD(r, clk_pol, 3, 3);
+ r = FLD_MOD(r, data1_lane, 6, 4);
+ r = FLD_MOD(r, data1_pol, 7, 7);
+ r = FLD_MOD(r, data2_lane, 10, 8);
+ r = FLD_MOD(r, data2_pol, 11, 11);
+ dsi_write_reg(DSI_COMPLEXIO_CFG1, r);
+
+ /* The configuration of the DSI complex I/O (number of data lanes,
+ position, differential order) should not be changed while
+ DSS.DSI_CLK_CRTRL[20] LP_CLK_ENABLE bit is set to 1. In order for
+ the hardware to take into account a new configuration of the complex
+ I/O (done in DSS.DSI_COMPLEXIO_CFG1 register), it is recommended to
+ follow this sequence: First set the DSS.DSI_CTRL[0] IF_EN bit to 1,
+ then reset the DSS.DSI_CTRL[0] IF_EN to 0, then set
+ DSS.DSI_CLK_CTRL[20] LP_CLK_ENABLE to 1 and finally set again the
+ DSS.DSI_CTRL[0] IF_EN bit to 1. If the sequence is not followed, the
+ DSI complex I/O configuration is unknown. */
+
+ /*
+ REG_FLD_MOD(DSI_CTRL, 1, 0, 0);
+ REG_FLD_MOD(DSI_CTRL, 0, 0, 0);
+ REG_FLD_MOD(DSI_CLK_CTRL, 1, 20, 20);
+ REG_FLD_MOD(DSI_CTRL, 1, 0, 0);
+ */
+}
+
+static inline unsigned ns2ddr(unsigned ns)
+{
+ /* convert time in ns to ddr ticks, rounding up */
+ unsigned long ddr_clk = dsi.current_cinfo.clkin4ddr / 4;
+ return (ns * (ddr_clk / 1000 / 1000) + 999) / 1000;
+}
+
+static inline unsigned ddr2ns(unsigned ddr)
+{
+ unsigned long ddr_clk = dsi.current_cinfo.clkin4ddr / 4;
+ return ddr * 1000 * 1000 / (ddr_clk / 1000);
+}
+
+static void dsi_complexio_timings(void)
+{
+ u32 r;
+ u32 ths_prepare, ths_prepare_ths_zero, ths_trail, ths_exit;
+ u32 tlpx_half, tclk_trail, tclk_zero;
+ u32 tclk_prepare;
+
+ /* calculate timings */
+
+ /* 1 * DDR_CLK = 2 * UI */
+
+ /* min 40ns + 4*UI max 85ns + 6*UI */
+ ths_prepare = ns2ddr(70) + 2;
+
+ /* min 145ns + 10*UI */
+ ths_prepare_ths_zero = ns2ddr(175) + 2;
+
+ /* min max(8*UI, 60ns+4*UI) */
+ ths_trail = ns2ddr(60) + 5;
+
+ /* min 100ns */
+ ths_exit = ns2ddr(145);
+
+ /* tlpx min 50n */
+ tlpx_half = ns2ddr(25);
+
+ /* min 60ns */
+ tclk_trail = ns2ddr(60) + 2;
+
+ /* min 38ns, max 95ns */
+ tclk_prepare = ns2ddr(65);
+
+ /* min tclk-prepare + tclk-zero = 300ns */
+ tclk_zero = ns2ddr(260);
+
+ DSSDBG("ths_prepare %u (%uns), ths_prepare_ths_zero %u (%uns)\n",
+ ths_prepare, ddr2ns(ths_prepare),
+ ths_prepare_ths_zero, ddr2ns(ths_prepare_ths_zero));
+ DSSDBG("ths_trail %u (%uns), ths_exit %u (%uns)\n",
+ ths_trail, ddr2ns(ths_trail),
+ ths_exit, ddr2ns(ths_exit));
+
+ DSSDBG("tlpx_half %u (%uns), tclk_trail %u (%uns), "
+ "tclk_zero %u (%uns)\n",
+ tlpx_half, ddr2ns(tlpx_half),
+ tclk_trail, ddr2ns(tclk_trail),
+ tclk_zero, ddr2ns(tclk_zero));
+ DSSDBG("tclk_prepare %u (%uns)\n",
+ tclk_prepare, ddr2ns(tclk_prepare));
+
+ /* program timings */
+
+ r = dsi_read_reg(DSI_DSIPHY_CFG0);
+ r = FLD_MOD(r, ths_prepare, 31, 24);
+ r = FLD_MOD(r, ths_prepare_ths_zero, 23, 16);
+ r = FLD_MOD(r, ths_trail, 15, 8);
+ r = FLD_MOD(r, ths_exit, 7, 0);
+ dsi_write_reg(DSI_DSIPHY_CFG0, r);
+
+ r = dsi_read_reg(DSI_DSIPHY_CFG1);
+ r = FLD_MOD(r, tlpx_half, 22, 16);
+ r = FLD_MOD(r, tclk_trail, 15, 8);
+ r = FLD_MOD(r, tclk_zero, 7, 0);
+ dsi_write_reg(DSI_DSIPHY_CFG1, r);
+
+ r = dsi_read_reg(DSI_DSIPHY_CFG2);
+ r = FLD_MOD(r, tclk_prepare, 7, 0);
+ dsi_write_reg(DSI_DSIPHY_CFG2, r);
+}
+
+
+static int dsi_complexio_init(struct omap_dss_device *dssdev)
+{
+ int r = 0;
+
+ DSSDBG("dsi_complexio_init\n");
+
+ /* CIO_CLK_ICG, enable L3 clk to CIO */
+ REG_FLD_MOD(DSI_CLK_CTRL, 1, 14, 14);
+
+ /* A dummy read using the SCP interface to any DSIPHY register is
+ * required after DSIPHY reset to complete the reset of the DSI complex
+ * I/O. */
+ dsi_read_reg(DSI_DSIPHY_CFG5);
+
+ if (wait_for_bit_change(DSI_DSIPHY_CFG5, 30, 1) != 1) {
+ DSSERR("ComplexIO PHY not coming out of reset.\n");
+ r = -ENODEV;
+ goto err;
+ }
+
+ dsi_complexio_config(dssdev);
+
+ r = dsi_complexio_power(DSI_COMPLEXIO_POWER_ON);
+
+ if (r)
+ goto err;
+
+ if (wait_for_bit_change(DSI_COMPLEXIO_CFG1, 29, 1) != 1) {
+ DSSERR("ComplexIO not coming out of reset.\n");
+ r = -ENODEV;
+ goto err;
+ }
+
+ if (wait_for_bit_change(DSI_COMPLEXIO_CFG1, 21, 1) != 1) {
+ DSSERR("ComplexIO LDO power down.\n");
+ r = -ENODEV;
+ goto err;
+ }
+
+ dsi_complexio_timings();
+
+ /*
+ The configuration of the DSI complex I/O (number of data lanes,
+ position, differential order) should not be changed while
+ DSS.DSI_CLK_CRTRL[20] LP_CLK_ENABLE bit is set to 1. For the
+ hardware to recognize a new configuration of the complex I/O (done
+ in DSS.DSI_COMPLEXIO_CFG1 register), it is recommended to follow
+ this sequence: First set the DSS.DSI_CTRL[0] IF_EN bit to 1, next
+ reset the DSS.DSI_CTRL[0] IF_EN to 0, then set DSS.DSI_CLK_CTRL[20]
+ LP_CLK_ENABLE to 1, and finally, set again the DSS.DSI_CTRL[0] IF_EN
+ bit to 1. If the sequence is not followed, the DSi complex I/O
+ configuration is undetermined.
+ */
+ dsi_if_enable(1);
+ dsi_if_enable(0);
+ REG_FLD_MOD(DSI_CLK_CTRL, 1, 20, 20); /* LP_CLK_ENABLE */
+ dsi_if_enable(1);
+ dsi_if_enable(0);
+
+ DSSDBG("CIO init done\n");
+err:
+ return r;
+}
+
+static void dsi_complexio_uninit(void)
+{
+ dsi_complexio_power(DSI_COMPLEXIO_POWER_OFF);
+}
+
+static int _dsi_wait_reset(void)
+{
+ int i = 0;
+
+ while (REG_GET(DSI_SYSSTATUS, 0, 0) == 0) {
+ if (i++ > 5) {
+ DSSERR("soft reset failed\n");
+ return -ENODEV;
+ }
+ udelay(1);
+ }
+
+ return 0;
+}
+
+static int _dsi_reset(void)
+{
+ /* Soft reset */
+ REG_FLD_MOD(DSI_SYSCONFIG, 1, 1, 1);
+ return _dsi_wait_reset();
+}
+
+static void dsi_reset_tx_fifo(int channel)
+{
+ u32 mask;
+ u32 l;
+
+ /* set fifosize of the channel to 0, then return the old size */
+ l = dsi_read_reg(DSI_TX_FIFO_VC_SIZE);
+
+ mask = FLD_MASK((8 * channel) + 7, (8 * channel) + 4);
+ dsi_write_reg(DSI_TX_FIFO_VC_SIZE, l & ~mask);
+
+ dsi_write_reg(DSI_TX_FIFO_VC_SIZE, l);
+}
+
+static void dsi_config_tx_fifo(enum fifo_size size1, enum fifo_size size2,
+ enum fifo_size size3, enum fifo_size size4)
+{
+ u32 r = 0;
+ int add = 0;
+ int i;
+
+ dsi.vc[0].fifo_size = size1;
+ dsi.vc[1].fifo_size = size2;
+ dsi.vc[2].fifo_size = size3;
+ dsi.vc[3].fifo_size = size4;
+
+ for (i = 0; i < 4; i++) {
+ u8 v;
+ int size = dsi.vc[i].fifo_size;
+
+ if (add + size > 4) {
+ DSSERR("Illegal FIFO configuration\n");
+ BUG();
+ }
+
+ v = FLD_VAL(add, 2, 0) | FLD_VAL(size, 7, 4);
+ r |= v << (8 * i);
+ /*DSSDBG("TX FIFO vc %d: size %d, add %d\n", i, size, add); */
+ add += size;
+ }
+
+ dsi_write_reg(DSI_TX_FIFO_VC_SIZE, r);
+}
+
+static void dsi_config_rx_fifo(enum fifo_size size1, enum fifo_size size2,
+ enum fifo_size size3, enum fifo_size size4)
+{
+ u32 r = 0;
+ int add = 0;
+ int i;
+
+ dsi.vc[0].fifo_size = size1;
+ dsi.vc[1].fifo_size = size2;
+ dsi.vc[2].fifo_size = size3;
+ dsi.vc[3].fifo_size = size4;
+
+ for (i = 0; i < 4; i++) {
+ u8 v;
+ int size = dsi.vc[i].fifo_size;
+
+ if (add + size > 4) {
+ DSSERR("Illegal FIFO configuration\n");
+ BUG();
+ }
+
+ v = FLD_VAL(add, 2, 0) | FLD_VAL(size, 7, 4);
+ r |= v << (8 * i);
+ /*DSSDBG("RX FIFO vc %d: size %d, add %d\n", i, size, add); */
+ add += size;
+ }
+
+ dsi_write_reg(DSI_RX_FIFO_VC_SIZE, r);
+}
+
+static int dsi_force_tx_stop_mode_io(void)
+{
+ u32 r;
+
+ r = dsi_read_reg(DSI_TIMING1);
+ r = FLD_MOD(r, 1, 15, 15); /* FORCE_TX_STOP_MODE_IO */
+ dsi_write_reg(DSI_TIMING1, r);
+
+ if (wait_for_bit_change(DSI_TIMING1, 15, 0) != 0) {
+ DSSERR("TX_STOP bit not going down\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static void dsi_vc_print_status(int channel)
+{
+ u32 r;
+
+ r = dsi_read_reg(DSI_VC_CTRL(channel));
+ DSSDBG("vc %d: TX_FIFO_NOT_EMPTY %d, BTA_EN %d, VC_BUSY %d, "
+ "TX_FIFO_FULL %d, RX_FIFO_NOT_EMPTY %d, ",
+ channel,
+ FLD_GET(r, 5, 5),
+ FLD_GET(r, 6, 6),
+ FLD_GET(r, 15, 15),
+ FLD_GET(r, 16, 16),
+ FLD_GET(r, 20, 20));
+
+ r = dsi_read_reg(DSI_TX_FIFO_VC_EMPTINESS);
+ DSSDBG("EMPTINESS %d\n", (r >> (8 * channel)) & 0xff);
+}
+
+static int dsi_vc_enable(int channel, bool enable)
+{
+ if (dsi.update_mode != OMAP_DSS_UPDATE_AUTO)
+ DSSDBG("dsi_vc_enable channel %d, enable %d\n",
+ channel, enable);
+
+ enable = enable ? 1 : 0;
+
+ REG_FLD_MOD(DSI_VC_CTRL(channel), enable, 0, 0);
+
+ if (wait_for_bit_change(DSI_VC_CTRL(channel), 0, enable) != enable) {
+ DSSERR("Failed to set dsi_vc_enable to %d\n", enable);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static void dsi_vc_initial_config(int channel)
+{
+ u32 r;
+
+ DSSDBGF("%d", channel);
+
+ r = dsi_read_reg(DSI_VC_CTRL(channel));
+
+ if (FLD_GET(r, 15, 15)) /* VC_BUSY */
+ DSSERR("VC(%d) busy when trying to configure it!\n",
+ channel);
+
+ r = FLD_MOD(r, 0, 1, 1); /* SOURCE, 0 = L4 */
+ r = FLD_MOD(r, 0, 2, 2); /* BTA_SHORT_EN */
+ r = FLD_MOD(r, 0, 3, 3); /* BTA_LONG_EN */
+ r = FLD_MOD(r, 0, 4, 4); /* MODE, 0 = command */
+ r = FLD_MOD(r, 1, 7, 7); /* CS_TX_EN */
+ r = FLD_MOD(r, 1, 8, 8); /* ECC_TX_EN */
+ r = FLD_MOD(r, 0, 9, 9); /* MODE_SPEED, high speed on/off */
+
+ r = FLD_MOD(r, 4, 29, 27); /* DMA_RX_REQ_NB = no dma */
+ r = FLD_MOD(r, 4, 23, 21); /* DMA_TX_REQ_NB = no dma */
+
+ dsi_write_reg(DSI_VC_CTRL(channel), r);
+
+ dsi.vc[channel].mode = DSI_VC_MODE_L4;
+}
+
+static void dsi_vc_config_l4(int channel)
+{
+ if (dsi.vc[channel].mode == DSI_VC_MODE_L4)
+ return;
+
+ DSSDBGF("%d", channel);
+
+ dsi_vc_enable(channel, 0);
+
+ if (REG_GET(DSI_VC_CTRL(channel), 15, 15)) /* VC_BUSY */
+ DSSERR("vc(%d) busy when trying to config for L4\n", channel);
+
+ REG_FLD_MOD(DSI_VC_CTRL(channel), 0, 1, 1); /* SOURCE, 0 = L4 */
+
+ dsi_vc_enable(channel, 1);
+
+ dsi.vc[channel].mode = DSI_VC_MODE_L4;
+}
+
+static void dsi_vc_config_vp(int channel)
+{
+ if (dsi.vc[channel].mode == DSI_VC_MODE_VP)
+ return;
+
+ DSSDBGF("%d", channel);
+
+ dsi_vc_enable(channel, 0);
+
+ if (REG_GET(DSI_VC_CTRL(channel), 15, 15)) /* VC_BUSY */
+ DSSERR("vc(%d) busy when trying to config for VP\n", channel);
+
+ REG_FLD_MOD(DSI_VC_CTRL(channel), 1, 1, 1); /* SOURCE, 1 = video port */
+
+ dsi_vc_enable(channel, 1);
+
+ dsi.vc[channel].mode = DSI_VC_MODE_VP;
+}
+
+
+static void dsi_vc_enable_hs(int channel, bool enable)
+{
+ DSSDBG("dsi_vc_enable_hs(%d, %d)\n", channel, enable);
+
+ dsi_vc_enable(channel, 0);
+ dsi_if_enable(0);
+
+ REG_FLD_MOD(DSI_VC_CTRL(channel), enable, 9, 9);
+
+ dsi_vc_enable(channel, 1);
+ dsi_if_enable(1);
+
+ dsi_force_tx_stop_mode_io();
+}
+
+static void dsi_vc_flush_long_data(int channel)
+{
+ while (REG_GET(DSI_VC_CTRL(channel), 20, 20)) {
+ u32 val;
+ val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel));
+ DSSDBG("\t\tb1 %#02x b2 %#02x b3 %#02x b4 %#02x\n",
+ (val >> 0) & 0xff,
+ (val >> 8) & 0xff,
+ (val >> 16) & 0xff,
+ (val >> 24) & 0xff);
+ }
+}
+
+static void dsi_show_rx_ack_with_err(u16 err)
+{
+ DSSERR("\tACK with ERROR (%#x):\n", err);
+ if (err & (1 << 0))
+ DSSERR("\t\tSoT Error\n");
+ if (err & (1 << 1))
+ DSSERR("\t\tSoT Sync Error\n");
+ if (err & (1 << 2))
+ DSSERR("\t\tEoT Sync Error\n");
+ if (err & (1 << 3))
+ DSSERR("\t\tEscape Mode Entry Command Error\n");
+ if (err & (1 << 4))
+ DSSERR("\t\tLP Transmit Sync Error\n");
+ if (err & (1 << 5))
+ DSSERR("\t\tHS Receive Timeout Error\n");
+ if (err & (1 << 6))
+ DSSERR("\t\tFalse Control Error\n");
+ if (err & (1 << 7))
+ DSSERR("\t\t(reserved7)\n");
+ if (err & (1 << 8))
+ DSSERR("\t\tECC Error, single-bit (corrected)\n");
+ if (err & (1 << 9))
+ DSSERR("\t\tECC Error, multi-bit (not corrected)\n");
+ if (err & (1 << 10))
+ DSSERR("\t\tChecksum Error\n");
+ if (err & (1 << 11))
+ DSSERR("\t\tData type not recognized\n");
+ if (err & (1 << 12))
+ DSSERR("\t\tInvalid VC ID\n");
+ if (err & (1 << 13))
+ DSSERR("\t\tInvalid Transmission Length\n");
+ if (err & (1 << 14))
+ DSSERR("\t\t(reserved14)\n");
+ if (err & (1 << 15))
+ DSSERR("\t\tDSI Protocol Violation\n");
+}
+
+static u16 dsi_vc_flush_receive_data(int channel)
+{
+ /* RX_FIFO_NOT_EMPTY */
+ while (REG_GET(DSI_VC_CTRL(channel), 20, 20)) {
+ u32 val;
+ u8 dt;
+ val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel));
+ DSSDBG("\trawval %#08x\n", val);
+ dt = FLD_GET(val, 5, 0);
+ if (dt == DSI_DT_RX_ACK_WITH_ERR) {
+ u16 err = FLD_GET(val, 23, 8);
+ dsi_show_rx_ack_with_err(err);
+ } else if (dt == DSI_DT_RX_SHORT_READ_1) {
+ DSSDBG("\tDCS short response, 1 byte: %#x\n",
+ FLD_GET(val, 23, 8));
+ } else if (dt == DSI_DT_RX_SHORT_READ_2) {
+ DSSDBG("\tDCS short response, 2 byte: %#x\n",
+ FLD_GET(val, 23, 8));
+ } else if (dt == DSI_DT_RX_DCS_LONG_READ) {
+ DSSDBG("\tDCS long response, len %d\n",
+ FLD_GET(val, 23, 8));
+ dsi_vc_flush_long_data(channel);
+ } else {
+ DSSERR("\tunknown datatype 0x%02x\n", dt);
+ }
+ }
+ return 0;
+}
+
+static int dsi_vc_send_bta(int channel)
+{
+ if (dsi.update_mode != OMAP_DSS_UPDATE_AUTO &&
+ (dsi.debug_write || dsi.debug_read))
+ DSSDBG("dsi_vc_send_bta %d\n", channel);
+
+ WARN_ON(!mutex_is_locked(&dsi.bus_lock));
+
+ if (REG_GET(DSI_VC_CTRL(channel), 20, 20)) { /* RX_FIFO_NOT_EMPTY */
+ DSSERR("rx fifo not empty when sending BTA, dumping data:\n");
+ dsi_vc_flush_receive_data(channel);
+ }
+
+ REG_FLD_MOD(DSI_VC_CTRL(channel), 1, 6, 6); /* BTA_EN */
+
+ return 0;
+}
+
+int dsi_vc_send_bta_sync(int channel)
+{
+ int r = 0;
+ u32 err;
+
+ INIT_COMPLETION(dsi.bta_completion);
+
+ dsi_vc_enable_bta_irq(channel);
+
+ r = dsi_vc_send_bta(channel);
+ if (r)
+ goto err;
+
+ if (wait_for_completion_timeout(&dsi.bta_completion,
+ msecs_to_jiffies(500)) == 0) {
+ DSSERR("Failed to receive BTA\n");
+ r = -EIO;
+ goto err;
+ }
+
+ err = dsi_get_errors();
+ if (err) {
+ DSSERR("Error while sending BTA: %x\n", err);
+ r = -EIO;
+ goto err;
+ }
+err:
+ dsi_vc_disable_bta_irq(channel);
+
+ return r;
+}
+EXPORT_SYMBOL(dsi_vc_send_bta_sync);
+
+static inline void dsi_vc_write_long_header(int channel, u8 data_type,
+ u16 len, u8 ecc)
+{
+ u32 val;
+ u8 data_id;
+
+ WARN_ON(!mutex_is_locked(&dsi.bus_lock));
+
+ /*data_id = data_type | channel << 6; */
+ data_id = data_type | dsi.vc[channel].dest_per << 6;
+
+ val = FLD_VAL(data_id, 7, 0) | FLD_VAL(len, 23, 8) |
+ FLD_VAL(ecc, 31, 24);
+
+ dsi_write_reg(DSI_VC_LONG_PACKET_HEADER(channel), val);
+}
+
+static inline void dsi_vc_write_long_payload(int channel,
+ u8 b1, u8 b2, u8 b3, u8 b4)
+{
+ u32 val;
+
+ val = b4 << 24 | b3 << 16 | b2 << 8 | b1 << 0;
+
+/* DSSDBG("\twriting %02x, %02x, %02x, %02x (%#010x)\n",
+ b1, b2, b3, b4, val); */
+
+ dsi_write_reg(DSI_VC_LONG_PACKET_PAYLOAD(channel), val);
+}
+
+static int dsi_vc_send_long(int channel, u8 data_type, u8 *data, u16 len,
+ u8 ecc)
+{
+ /*u32 val; */
+ int i;
+ u8 *p;
+ int r = 0;
+ u8 b1, b2, b3, b4;
+
+ if (dsi.debug_write)
+ DSSDBG("dsi_vc_send_long, %d bytes\n", len);
+
+ /* len + header */
+ if (dsi.vc[channel].fifo_size * 32 * 4 < len + 4) {
+ DSSERR("unable to send long packet: packet too long.\n");
+ return -EINVAL;
+ }
+
+ dsi_vc_config_l4(channel);
+
+ dsi_vc_write_long_header(channel, data_type, len, ecc);
+
+ /*dsi_vc_print_status(0); */
+
+ p = data;
+ for (i = 0; i < len >> 2; i++) {
+ if (dsi.debug_write)
+ DSSDBG("\tsending full packet %d\n", i);
+ /*dsi_vc_print_status(0); */
+
+ b1 = *p++;
+ b2 = *p++;
+ b3 = *p++;
+ b4 = *p++;
+
+ dsi_vc_write_long_payload(channel, b1, b2, b3, b4);
+ }
+
+ i = len % 4;
+ if (i) {
+ b1 = 0; b2 = 0; b3 = 0;
+
+ if (dsi.debug_write)
+ DSSDBG("\tsending remainder bytes %d\n", i);
+
+ switch (i) {
+ case 3:
+ b1 = *p++;
+ b2 = *p++;
+ b3 = *p++;
+ break;
+ case 2:
+ b1 = *p++;
+ b2 = *p++;
+ break;
+ case 1:
+ b1 = *p++;
+ break;
+ }
+
+ dsi_vc_write_long_payload(channel, b1, b2, b3, 0);
+ }
+
+ return r;
+}
+
+static int dsi_vc_send_short(int channel, u8 data_type, u16 data, u8 ecc)
+{
+ u32 r;
+ u8 data_id;
+
+ WARN_ON(!mutex_is_locked(&dsi.bus_lock));
+
+ if (dsi.debug_write)
+ DSSDBG("dsi_vc_send_short(ch%d, dt %#x, b1 %#x, b2 %#x)\n",
+ channel,
+ data_type, data & 0xff, (data >> 8) & 0xff);
+
+ dsi_vc_config_l4(channel);
+
+ if (FLD_GET(dsi_read_reg(DSI_VC_CTRL(channel)), 16, 16)) {
+ DSSERR("ERROR FIFO FULL, aborting transfer\n");
+ return -EINVAL;
+ }
+
+ data_id = data_type | channel << 6;
+
+ r = (data_id << 0) | (data << 8) | (ecc << 24);
+
+ dsi_write_reg(DSI_VC_SHORT_PACKET_HEADER(channel), r);
+
+ return 0;
+}
+
+int dsi_vc_send_null(int channel)
+{
+ u8 nullpkg[] = {0, 0, 0, 0};
+ return dsi_vc_send_long(0, DSI_DT_NULL_PACKET, nullpkg, 4, 0);
+}
+EXPORT_SYMBOL(dsi_vc_send_null);
+
+int dsi_vc_dcs_write_nosync(int channel, u8 *data, int len)
+{
+ int r;
+
+ BUG_ON(len == 0);
+
+ if (len == 1) {
+ r = dsi_vc_send_short(channel, DSI_DT_DCS_SHORT_WRITE_0,
+ data[0], 0);
+ } else if (len == 2) {
+ r = dsi_vc_send_short(channel, DSI_DT_DCS_SHORT_WRITE_1,
+ data[0] | (data[1] << 8), 0);
+ } else {
+ /* 0x39 = DCS Long Write */
+ r = dsi_vc_send_long(channel, DSI_DT_DCS_LONG_WRITE,
+ data, len, 0);
+ }
+
+ return r;
+}
+EXPORT_SYMBOL(dsi_vc_dcs_write_nosync);
+
+int dsi_vc_dcs_write(int channel, u8 *data, int len)
+{
+ int r;
+
+ r = dsi_vc_dcs_write_nosync(channel, data, len);
+ if (r)
+ return r;
+
+ r = dsi_vc_send_bta_sync(channel);
+
+ return r;
+}
+EXPORT_SYMBOL(dsi_vc_dcs_write);
+
+int dsi_vc_dcs_read(int channel, u8 dcs_cmd, u8 *buf, int buflen)
+{
+ u32 val;
+ u8 dt;
+ int r;
+
+ if (dsi.debug_read)
+ DSSDBG("dsi_vc_dcs_read(ch%d, dcs_cmd %u)\n", channel, dcs_cmd);
+
+ r = dsi_vc_send_short(channel, DSI_DT_DCS_READ, dcs_cmd, 0);
+ if (r)
+ return r;
+
+ r = dsi_vc_send_bta_sync(channel);
+ if (r)
+ return r;
+
+ /* RX_FIFO_NOT_EMPTY */
+ if (REG_GET(DSI_VC_CTRL(channel), 20, 20) == 0) {
+ DSSERR("RX fifo empty when trying to read.\n");
+ return -EIO;
+ }
+
+ val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel));
+ if (dsi.debug_read)
+ DSSDBG("\theader: %08x\n", val);
+ dt = FLD_GET(val, 5, 0);
+ if (dt == DSI_DT_RX_ACK_WITH_ERR) {
+ u16 err = FLD_GET(val, 23, 8);
+ dsi_show_rx_ack_with_err(err);
+ return -EIO;
+
+ } else if (dt == DSI_DT_RX_SHORT_READ_1) {
+ u8 data = FLD_GET(val, 15, 8);
+ if (dsi.debug_read)
+ DSSDBG("\tDCS short response, 1 byte: %02x\n", data);
+
+ if (buflen < 1)
+ return -EIO;
+
+ buf[0] = data;
+
+ return 1;
+ } else if (dt == DSI_DT_RX_SHORT_READ_2) {
+ u16 data = FLD_GET(val, 23, 8);
+ if (dsi.debug_read)
+ DSSDBG("\tDCS short response, 2 byte: %04x\n", data);
+
+ if (buflen < 2)
+ return -EIO;
+
+ buf[0] = data & 0xff;
+ buf[1] = (data >> 8) & 0xff;
+
+ return 2;
+ } else if (dt == DSI_DT_RX_DCS_LONG_READ) {
+ int w;
+ int len = FLD_GET(val, 23, 8);
+ if (dsi.debug_read)
+ DSSDBG("\tDCS long response, len %d\n", len);
+
+ if (len > buflen)
+ return -EIO;
+
+ /* two byte checksum ends the packet, not included in len */
+ for (w = 0; w < len + 2;) {
+ int b;
+ val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel));
+ if (dsi.debug_read)
+ DSSDBG("\t\t%02x %02x %02x %02x\n",
+ (val >> 0) & 0xff,
+ (val >> 8) & 0xff,
+ (val >> 16) & 0xff,
+ (val >> 24) & 0xff);
+
+ for (b = 0; b < 4; ++b) {
+ if (w < len)
+ buf[w] = (val >> (b * 8)) & 0xff;
+ /* we discard the 2 byte checksum */
+ ++w;
+ }
+ }
+
+ return len;
+
+ } else {
+ DSSERR("\tunknown datatype 0x%02x\n", dt);
+ return -EIO;
+ }
+}
+EXPORT_SYMBOL(dsi_vc_dcs_read);
+
+
+int dsi_vc_set_max_rx_packet_size(int channel, u16 len)
+{
+ int r;
+ r = dsi_vc_send_short(channel, DSI_DT_SET_MAX_RET_PKG_SIZE,
+ len, 0);
+
+ if (r)
+ return r;
+
+ r = dsi_vc_send_bta_sync(channel);
+
+ return r;
+}
+EXPORT_SYMBOL(dsi_vc_set_max_rx_packet_size);
+
+static void dsi_set_lp_rx_timeout(unsigned long ns)
+{
+ u32 r;
+ unsigned x4, x16;
+ unsigned long fck;
+ unsigned long ticks;
+
+ /* ticks in DSI_FCK */
+
+ fck = dsi_fclk_rate();
+ ticks = (fck / 1000 / 1000) * ns / 1000;
+ x4 = 0;
+ x16 = 0;
+
+ if (ticks > 0x1fff) {
+ ticks = (fck / 1000 / 1000) * ns / 1000 / 4;
+ x4 = 1;
+ x16 = 0;
+ }
+
+ if (ticks > 0x1fff) {
+ ticks = (fck / 1000 / 1000) * ns / 1000 / 16;
+ x4 = 0;
+ x16 = 1;
+ }
+
+ if (ticks > 0x1fff) {
+ ticks = (fck / 1000 / 1000) * ns / 1000 / (4 * 16);
+ x4 = 1;
+ x16 = 1;
+ }
+
+ if (ticks > 0x1fff) {
+ DSSWARN("LP_TX_TO over limit, setting it to max\n");
+ ticks = 0x1fff;
+ x4 = 1;
+ x16 = 1;
+ }
+
+ r = dsi_read_reg(DSI_TIMING2);
+ r = FLD_MOD(r, 1, 15, 15); /* LP_RX_TO */
+ r = FLD_MOD(r, x16, 14, 14); /* LP_RX_TO_X16 */
+ r = FLD_MOD(r, x4, 13, 13); /* LP_RX_TO_X4 */
+ r = FLD_MOD(r, ticks, 12, 0); /* LP_RX_COUNTER */
+ dsi_write_reg(DSI_TIMING2, r);
+
+ DSSDBG("LP_RX_TO %lu ns (%#lx ticks%s%s)\n",
+ (ticks * (x16 ? 16 : 1) * (x4 ? 4 : 1) * 1000) /
+ (fck / 1000 / 1000),
+ ticks, x4 ? " x4" : "", x16 ? " x16" : "");
+}
+
+static void dsi_set_ta_timeout(unsigned long ns)
+{
+ u32 r;
+ unsigned x8, x16;
+ unsigned long fck;
+ unsigned long ticks;
+
+ /* ticks in DSI_FCK */
+ fck = dsi_fclk_rate();
+ ticks = (fck / 1000 / 1000) * ns / 1000;
+ x8 = 0;
+ x16 = 0;
+
+ if (ticks > 0x1fff) {
+ ticks = (fck / 1000 / 1000) * ns / 1000 / 8;
+ x8 = 1;
+ x16 = 0;
+ }
+
+ if (ticks > 0x1fff) {
+ ticks = (fck / 1000 / 1000) * ns / 1000 / 16;
+ x8 = 0;
+ x16 = 1;
+ }
+
+ if (ticks > 0x1fff) {
+ ticks = (fck / 1000 / 1000) * ns / 1000 / (8 * 16);
+ x8 = 1;
+ x16 = 1;
+ }
+
+ if (ticks > 0x1fff) {
+ DSSWARN("TA_TO over limit, setting it to max\n");
+ ticks = 0x1fff;
+ x8 = 1;
+ x16 = 1;
+ }
+
+ r = dsi_read_reg(DSI_TIMING1);
+ r = FLD_MOD(r, 1, 31, 31); /* TA_TO */
+ r = FLD_MOD(r, x16, 30, 30); /* TA_TO_X16 */
+ r = FLD_MOD(r, x8, 29, 29); /* TA_TO_X8 */
+ r = FLD_MOD(r, ticks, 28, 16); /* TA_TO_COUNTER */
+ dsi_write_reg(DSI_TIMING1, r);
+
+ DSSDBG("TA_TO %lu ns (%#lx ticks%s%s)\n",
+ (ticks * (x16 ? 16 : 1) * (x8 ? 8 : 1) * 1000) /
+ (fck / 1000 / 1000),
+ ticks, x8 ? " x8" : "", x16 ? " x16" : "");
+}
+
+static void dsi_set_stop_state_counter(unsigned long ns)
+{
+ u32 r;
+ unsigned x4, x16;
+ unsigned long fck;
+ unsigned long ticks;
+
+ /* ticks in DSI_FCK */
+
+ fck = dsi_fclk_rate();
+ ticks = (fck / 1000 / 1000) * ns / 1000;
+ x4 = 0;
+ x16 = 0;
+
+ if (ticks > 0x1fff) {
+ ticks = (fck / 1000 / 1000) * ns / 1000 / 4;
+ x4 = 1;
+ x16 = 0;
+ }
+
+ if (ticks > 0x1fff) {
+ ticks = (fck / 1000 / 1000) * ns / 1000 / 16;
+ x4 = 0;
+ x16 = 1;
+ }
+
+ if (ticks > 0x1fff) {
+ ticks = (fck / 1000 / 1000) * ns / 1000 / (4 * 16);
+ x4 = 1;
+ x16 = 1;
+ }
+
+ if (ticks > 0x1fff) {
+ DSSWARN("STOP_STATE_COUNTER_IO over limit, "
+ "setting it to max\n");
+ ticks = 0x1fff;
+ x4 = 1;
+ x16 = 1;
+ }
+
+ r = dsi_read_reg(DSI_TIMING1);
+ r = FLD_MOD(r, 1, 15, 15); /* FORCE_TX_STOP_MODE_IO */
+ r = FLD_MOD(r, x16, 14, 14); /* STOP_STATE_X16_IO */
+ r = FLD_MOD(r, x4, 13, 13); /* STOP_STATE_X4_IO */
+ r = FLD_MOD(r, ticks, 12, 0); /* STOP_STATE_COUNTER_IO */
+ dsi_write_reg(DSI_TIMING1, r);
+
+ DSSDBG("STOP_STATE_COUNTER %lu ns (%#lx ticks%s%s)\n",
+ (ticks * (x16 ? 16 : 1) * (x4 ? 4 : 1) * 1000) /
+ (fck / 1000 / 1000),
+ ticks, x4 ? " x4" : "", x16 ? " x16" : "");
+}
+
+static void dsi_set_hs_tx_timeout(unsigned long ns)
+{
+ u32 r;
+ unsigned x4, x16;
+ unsigned long fck;
+ unsigned long ticks;
+
+ /* ticks in TxByteClkHS */
+
+ fck = dsi_get_txbyteclkhs();
+ ticks = (fck / 1000 / 1000) * ns / 1000;
+ x4 = 0;
+ x16 = 0;
+
+ if (ticks > 0x1fff) {
+ ticks = (fck / 1000 / 1000) * ns / 1000 / 4;
+ x4 = 1;
+ x16 = 0;
+ }
+
+ if (ticks > 0x1fff) {
+ ticks = (fck / 1000 / 1000) * ns / 1000 / 16;
+ x4 = 0;
+ x16 = 1;
+ }
+
+ if (ticks > 0x1fff) {
+ ticks = (fck / 1000 / 1000) * ns / 1000 / (4 * 16);
+ x4 = 1;
+ x16 = 1;
+ }
+
+ if (ticks > 0x1fff) {
+ DSSWARN("HS_TX_TO over limit, setting it to max\n");
+ ticks = 0x1fff;
+ x4 = 1;
+ x16 = 1;
+ }
+
+ r = dsi_read_reg(DSI_TIMING2);
+ r = FLD_MOD(r, 1, 31, 31); /* HS_TX_TO */
+ r = FLD_MOD(r, x16, 30, 30); /* HS_TX_TO_X16 */
+ r = FLD_MOD(r, x4, 29, 29); /* HS_TX_TO_X8 (4 really) */
+ r = FLD_MOD(r, ticks, 28, 16); /* HS_TX_TO_COUNTER */
+ dsi_write_reg(DSI_TIMING2, r);
+
+ DSSDBG("HS_TX_TO %lu ns (%#lx ticks%s%s)\n",
+ (ticks * (x16 ? 16 : 1) * (x4 ? 4 : 1) * 1000) /
+ (fck / 1000 / 1000),
+ ticks, x4 ? " x4" : "", x16 ? " x16" : "");
+}
+static int dsi_proto_config(struct omap_dss_device *dssdev)
+{
+ u32 r;
+ int buswidth = 0;
+
+ dsi_config_tx_fifo(DSI_FIFO_SIZE_128,
+ DSI_FIFO_SIZE_0,
+ DSI_FIFO_SIZE_0,
+ DSI_FIFO_SIZE_0);
+
+ dsi_config_rx_fifo(DSI_FIFO_SIZE_128,
+ DSI_FIFO_SIZE_0,
+ DSI_FIFO_SIZE_0,
+ DSI_FIFO_SIZE_0);
+
+ /* XXX what values for the timeouts? */
+ dsi_set_stop_state_counter(1000);
+ dsi_set_ta_timeout(6400000);
+ dsi_set_lp_rx_timeout(48000);
+ dsi_set_hs_tx_timeout(1000000);
+
+ switch (dssdev->ctrl.pixel_size) {
+ case 16:
+ buswidth = 0;
+ break;
+ case 18:
+ buswidth = 1;
+ break;
+ case 24:
+ buswidth = 2;
+ break;
+ default:
+ BUG();
+ }
+
+ r = dsi_read_reg(DSI_CTRL);
+ r = FLD_MOD(r, 1, 1, 1); /* CS_RX_EN */
+ r = FLD_MOD(r, 1, 2, 2); /* ECC_RX_EN */
+ r = FLD_MOD(r, 1, 3, 3); /* TX_FIFO_ARBITRATION */
+ r = FLD_MOD(r, 1, 4, 4); /* VP_CLK_RATIO, always 1, see errata*/
+ r = FLD_MOD(r, buswidth, 7, 6); /* VP_DATA_BUS_WIDTH */
+ r = FLD_MOD(r, 0, 8, 8); /* VP_CLK_POL */
+ r = FLD_MOD(r, 2, 13, 12); /* LINE_BUFFER, 2 lines */
+ r = FLD_MOD(r, 1, 14, 14); /* TRIGGER_RESET_MODE */
+ r = FLD_MOD(r, 1, 19, 19); /* EOT_ENABLE */
+ r = FLD_MOD(r, 1, 24, 24); /* DCS_CMD_ENABLE */
+ r = FLD_MOD(r, 0, 25, 25); /* DCS_CMD_CODE, 1=start, 0=continue */
+
+ dsi_write_reg(DSI_CTRL, r);
+
+ dsi_vc_initial_config(0);
+
+ /* set all vc targets to peripheral 0 */
+ dsi.vc[0].dest_per = 0;
+ dsi.vc[1].dest_per = 0;
+ dsi.vc[2].dest_per = 0;
+ dsi.vc[3].dest_per = 0;
+
+ return 0;
+}
+
+static void dsi_proto_timings(struct omap_dss_device *dssdev)
+{
+ unsigned tlpx, tclk_zero, tclk_prepare, tclk_trail;
+ unsigned tclk_pre, tclk_post;
+ unsigned ths_prepare, ths_prepare_ths_zero, ths_zero;
+ unsigned ths_trail, ths_exit;
+ unsigned ddr_clk_pre, ddr_clk_post;
+ unsigned enter_hs_mode_lat, exit_hs_mode_lat;
+ unsigned ths_eot;
+ u32 r;
+
+ r = dsi_read_reg(DSI_DSIPHY_CFG0);
+ ths_prepare = FLD_GET(r, 31, 24);
+ ths_prepare_ths_zero = FLD_GET(r, 23, 16);
+ ths_zero = ths_prepare_ths_zero - ths_prepare;
+ ths_trail = FLD_GET(r, 15, 8);
+ ths_exit = FLD_GET(r, 7, 0);
+
+ r = dsi_read_reg(DSI_DSIPHY_CFG1);
+ tlpx = FLD_GET(r, 22, 16) * 2;
+ tclk_trail = FLD_GET(r, 15, 8);
+ tclk_zero = FLD_GET(r, 7, 0);
+
+ r = dsi_read_reg(DSI_DSIPHY_CFG2);
+ tclk_prepare = FLD_GET(r, 7, 0);
+
+ /* min 8*UI */
+ tclk_pre = 20;
+ /* min 60ns + 52*UI */
+ tclk_post = ns2ddr(60) + 26;
+
+ /* ths_eot is 2 for 2 datalanes and 4 for 1 datalane */
+ if (dssdev->phy.dsi.data1_lane != 0 &&
+ dssdev->phy.dsi.data2_lane != 0)
+ ths_eot = 2;
+ else
+ ths_eot = 4;
+
+ ddr_clk_pre = DIV_ROUND_UP(tclk_pre + tlpx + tclk_zero + tclk_prepare,
+ 4);
+ ddr_clk_post = DIV_ROUND_UP(tclk_post + ths_trail, 4) + ths_eot;
+
+ BUG_ON(ddr_clk_pre == 0 || ddr_clk_pre > 255);
+ BUG_ON(ddr_clk_post == 0 || ddr_clk_post > 255);
+
+ r = dsi_read_reg(DSI_CLK_TIMING);
+ r = FLD_MOD(r, ddr_clk_pre, 15, 8);
+ r = FLD_MOD(r, ddr_clk_post, 7, 0);
+ dsi_write_reg(DSI_CLK_TIMING, r);
+
+ DSSDBG("ddr_clk_pre %u, ddr_clk_post %u\n",
+ ddr_clk_pre,
+ ddr_clk_post);
+
+ enter_hs_mode_lat = 1 + DIV_ROUND_UP(tlpx, 4) +
+ DIV_ROUND_UP(ths_prepare, 4) +
+ DIV_ROUND_UP(ths_zero + 3, 4);
+
+ exit_hs_mode_lat = DIV_ROUND_UP(ths_trail + ths_exit, 4) + 1 + ths_eot;
+
+ r = FLD_VAL(enter_hs_mode_lat, 31, 16) |
+ FLD_VAL(exit_hs_mode_lat, 15, 0);
+ dsi_write_reg(DSI_VM_TIMING7, r);
+
+ DSSDBG("enter_hs_mode_lat %u, exit_hs_mode_lat %u\n",
+ enter_hs_mode_lat, exit_hs_mode_lat);
+}
+
+
+#define DSI_DECL_VARS \
+ int __dsi_cb = 0; u32 __dsi_cv = 0;
+
+#define DSI_FLUSH(ch) \
+ if (__dsi_cb > 0) { \
+ /*DSSDBG("sending long packet %#010x\n", __dsi_cv);*/ \
+ dsi_write_reg(DSI_VC_LONG_PACKET_PAYLOAD(ch), __dsi_cv); \
+ __dsi_cb = __dsi_cv = 0; \
+ }
+
+#define DSI_PUSH(ch, data) \
+ do { \
+ __dsi_cv |= (data) << (__dsi_cb * 8); \
+ /*DSSDBG("cv = %#010x, cb = %d\n", __dsi_cv, __dsi_cb);*/ \
+ if (++__dsi_cb > 3) \
+ DSI_FLUSH(ch); \
+ } while (0)
+
+static int dsi_update_screen_l4(struct omap_dss_device *dssdev,
+ int x, int y, int w, int h)
+{
+ /* Note: supports only 24bit colors in 32bit container */
+ int first = 1;
+ int fifo_stalls = 0;
+ int max_dsi_packet_size;
+ int max_data_per_packet;
+ int max_pixels_per_packet;
+ int pixels_left;
+ int bytespp = dssdev->ctrl.pixel_size / 8;
+ int scr_width;
+ u32 __iomem *data;
+ int start_offset;
+ int horiz_inc;
+ int current_x;
+ struct omap_overlay *ovl;
+
+ debug_irq = 0;
+
+ DSSDBG("dsi_update_screen_l4 (%d,%d %dx%d)\n",
+ x, y, w, h);
+
+ ovl = dssdev->manager->overlays[0];
+
+ if (ovl->info.color_mode != OMAP_DSS_COLOR_RGB24U)
+ return -EINVAL;
+
+ if (dssdev->ctrl.pixel_size != 24)
+ return -EINVAL;
+
+ scr_width = ovl->info.screen_width;
+ data = ovl->info.vaddr;
+
+ start_offset = scr_width * y + x;
+ horiz_inc = scr_width - w;
+ current_x = x;
+
+ /* We need header(4) + DCSCMD(1) + pixels(numpix*bytespp) bytes
+ * in fifo */
+
+ /* When using CPU, max long packet size is TX buffer size */
+ max_dsi_packet_size = dsi.vc[0].fifo_size * 32 * 4;
+
+ /* we seem to get better perf if we divide the tx fifo to half,
+ and while the other half is being sent, we fill the other half
+ max_dsi_packet_size /= 2; */
+
+ max_data_per_packet = max_dsi_packet_size - 4 - 1;
+
+ max_pixels_per_packet = max_data_per_packet / bytespp;
+
+ DSSDBG("max_pixels_per_packet %d\n", max_pixels_per_packet);
+
+ pixels_left = w * h;
+
+ DSSDBG("total pixels %d\n", pixels_left);
+
+ data += start_offset;
+
+ while (pixels_left > 0) {
+ /* 0x2c = write_memory_start */
+ /* 0x3c = write_memory_continue */
+ u8 dcs_cmd = first ? 0x2c : 0x3c;
+ int pixels;
+ DSI_DECL_VARS;
+ first = 0;
+
+#if 1
+ /* using fifo not empty */
+ /* TX_FIFO_NOT_EMPTY */
+ while (FLD_GET(dsi_read_reg(DSI_VC_CTRL(0)), 5, 5)) {
+ udelay(1);
+ fifo_stalls++;
+ if (fifo_stalls > 0xfffff) {
+ DSSERR("fifo stalls overflow, pixels left %d\n",
+ pixels_left);
+ dsi_if_enable(0);
+ return -EIO;
+ }
+ }
+#elif 1
+ /* using fifo emptiness */
+ while ((REG_GET(DSI_TX_FIFO_VC_EMPTINESS, 7, 0)+1)*4 <
+ max_dsi_packet_size) {
+ fifo_stalls++;
+ if (fifo_stalls > 0xfffff) {
+ DSSERR("fifo stalls overflow, pixels left %d\n",
+ pixels_left);
+ dsi_if_enable(0);
+ return -EIO;
+ }
+ }
+#else
+ while ((REG_GET(DSI_TX_FIFO_VC_EMPTINESS, 7, 0)+1)*4 == 0) {
+ fifo_stalls++;
+ if (fifo_stalls > 0xfffff) {
+ DSSERR("fifo stalls overflow, pixels left %d\n",
+ pixels_left);
+ dsi_if_enable(0);
+ return -EIO;
+ }
+ }
+#endif
+ pixels = min(max_pixels_per_packet, pixels_left);
+
+ pixels_left -= pixels;
+
+ dsi_vc_write_long_header(0, DSI_DT_DCS_LONG_WRITE,
+ 1 + pixels * bytespp, 0);
+
+ DSI_PUSH(0, dcs_cmd);
+
+ while (pixels-- > 0) {
+ u32 pix = __raw_readl(data++);
+
+ DSI_PUSH(0, (pix >> 16) & 0xff);
+ DSI_PUSH(0, (pix >> 8) & 0xff);
+ DSI_PUSH(0, (pix >> 0) & 0xff);
+
+ current_x++;
+ if (current_x == x+w) {
+ current_x = x;
+ data += horiz_inc;
+ }
+ }
+
+ DSI_FLUSH(0);
+ }
+
+ return 0;
+}
+
+static void dsi_update_screen_dispc(struct omap_dss_device *dssdev,
+ u16 x, u16 y, u16 w, u16 h)
+{
+ unsigned bytespp;
+ unsigned bytespl;
+ unsigned bytespf;
+ unsigned total_len;
+ unsigned packet_payload;
+ unsigned packet_len;
+ u32 l;
+ bool use_te_trigger;
+ const unsigned channel = 0;
+ /* line buffer is 1024 x 24bits */
+ /* XXX: for some reason using full buffer size causes considerable TX
+ * slowdown with update sizes that fill the whole buffer */
+ const unsigned line_buf_size = 1023 * 3;
+
+ use_te_trigger = dsi.te_enabled && !dsi.use_ext_te;
+
+ if (dsi.update_mode != OMAP_DSS_UPDATE_AUTO)
+ DSSDBG("dsi_update_screen_dispc(%d,%d %dx%d)\n",
+ x, y, w, h);
+
+ bytespp = dssdev->ctrl.pixel_size / 8;
+ bytespl = w * bytespp;
+ bytespf = bytespl * h;
+
+ /* NOTE: packet_payload has to be equal to N * bytespl, where N is
+ * number of lines in a packet. See errata about VP_CLK_RATIO */
+
+ if (bytespf < line_buf_size)
+ packet_payload = bytespf;
+ else
+ packet_payload = (line_buf_size) / bytespl * bytespl;
+
+ packet_len = packet_payload + 1; /* 1 byte for DCS cmd */
+ total_len = (bytespf / packet_payload) * packet_len;
+
+ if (bytespf % packet_payload)
+ total_len += (bytespf % packet_payload) + 1;
+
+ if (0)
+ dsi_vc_print_status(1);
+
+ l = FLD_VAL(total_len, 23, 0); /* TE_SIZE */
+ dsi_write_reg(DSI_VC_TE(channel), l);
+
+ dsi_vc_write_long_header(channel, DSI_DT_DCS_LONG_WRITE, packet_len, 0);
+
+ if (use_te_trigger)
+ l = FLD_MOD(l, 1, 30, 30); /* TE_EN */
+ else
+ l = FLD_MOD(l, 1, 31, 31); /* TE_START */
+ dsi_write_reg(DSI_VC_TE(channel), l);
+
+ /* We put SIDLEMODE to no-idle for the duration of the transfer,
+ * because DSS interrupts are not capable of waking up the CPU and the
+ * framedone interrupt could be delayed for quite a long time. I think
+ * the same goes for any DSS interrupts, but for some reason I have not
+ * seen the problem anywhere else than here.
+ */
+ dispc_disable_sidle();
+
+ dss_start_update(dssdev);
+
+ if (use_te_trigger) {
+ /* disable LP_RX_TO, so that we can receive TE. Time to wait
+ * for TE is longer than the timer allows */
+ REG_FLD_MOD(DSI_TIMING2, 0, 15, 15); /* LP_RX_TO */
+
+ dsi_vc_send_bta(channel);
+
+#ifdef DSI_CATCH_MISSING_TE
+ mod_timer(&dsi.te_timer, jiffies + msecs_to_jiffies(250));
+#endif
+ }
+}
+
+#ifdef DSI_CATCH_MISSING_TE
+static void dsi_te_timeout(unsigned long arg)
+{
+ DSSERR("TE not received for 250ms!\n");
+}
+#endif
+
+static void dsi_framedone_irq_callback(void *data, u32 mask)
+{
+ /* Note: We get FRAMEDONE when DISPC has finished sending pixels and
+ * turns itself off. However, DSI still has the pixels in its buffers,
+ * and is sending the data.
+ */
+
+ /* SIDLEMODE back to smart-idle */
+ dispc_enable_sidle();
+
+ dsi.framedone_received = true;
+ wake_up(&dsi.waitqueue);
+}
+
+static void dsi_set_update_region(struct omap_dss_device *dssdev,
+ u16 x, u16 y, u16 w, u16 h)
+{
+ spin_lock(&dsi.update_lock);
+ if (dsi.update_region.dirty) {
+ dsi.update_region.x = min(x, dsi.update_region.x);
+ dsi.update_region.y = min(y, dsi.update_region.y);
+ dsi.update_region.w = max(w, dsi.update_region.w);
+ dsi.update_region.h = max(h, dsi.update_region.h);
+ } else {
+ dsi.update_region.x = x;
+ dsi.update_region.y = y;
+ dsi.update_region.w = w;
+ dsi.update_region.h = h;
+ }
+
+ dsi.update_region.device = dssdev;
+ dsi.update_region.dirty = true;
+
+ spin_unlock(&dsi.update_lock);
+
+}
+
+static int dsi_set_update_mode(struct omap_dss_device *dssdev,
+ enum omap_dss_update_mode mode)
+{
+ int r = 0;
+ int i;
+
+ WARN_ON(!mutex_is_locked(&dsi.bus_lock));
+
+ if (dsi.update_mode != mode) {
+ dsi.update_mode = mode;
+
+ /* Mark the overlays dirty, and do apply(), so that we get the
+ * overlays configured properly after update mode change. */
+ for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
+ struct omap_overlay *ovl;
+ ovl = omap_dss_get_overlay(i);
+ if (ovl->manager == dssdev->manager)
+ ovl->info_dirty = true;
+ }
+
+ r = dssdev->manager->apply(dssdev->manager);
+
+ if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE &&
+ mode == OMAP_DSS_UPDATE_AUTO) {
+ u16 w, h;
+
+ DSSDBG("starting auto update\n");
+
+ dssdev->get_resolution(dssdev, &w, &h);
+
+ dsi_set_update_region(dssdev, 0, 0, w, h);
+
+ dsi_perf_mark_start_auto();
+
+ wake_up(&dsi.waitqueue);
+ }
+ }
+
+ return r;
+}
+
+static int dsi_set_te(struct omap_dss_device *dssdev, bool enable)
+{
+ int r;
+ r = dssdev->driver->enable_te(dssdev, enable);
+ /* XXX for some reason, DSI TE breaks if we don't wait here.
+ * Panel bug? Needs more studying */
+ msleep(100);
+ return r;
+}
+
+static void dsi_handle_framedone(void)
+{
+ int r;
+ const int channel = 0;
+ bool use_te_trigger;
+
+ use_te_trigger = dsi.te_enabled && !dsi.use_ext_te;
+
+ if (dsi.update_mode != OMAP_DSS_UPDATE_AUTO)
+ DSSDBG("FRAMEDONE\n");
+
+ if (use_te_trigger) {
+ /* enable LP_RX_TO again after the TE */
+ REG_FLD_MOD(DSI_TIMING2, 1, 15, 15); /* LP_RX_TO */
+ }
+
+ /* Send BTA after the frame. We need this for the TE to work, as TE
+ * trigger is only sent for BTAs without preceding packet. Thus we need
+ * to BTA after the pixel packets so that next BTA will cause TE
+ * trigger.
+ *
+ * This is not needed when TE is not in use, but we do it anyway to
+ * make sure that the transfer has been completed. It would be more
+ * optimal, but more complex, to wait only just before starting next
+ * transfer. */
+ r = dsi_vc_send_bta_sync(channel);
+ if (r)
+ DSSERR("BTA after framedone failed\n");
+
+ /* RX_FIFO_NOT_EMPTY */
+ if (REG_GET(DSI_VC_CTRL(channel), 20, 20)) {
+ DSSERR("Received error during frame transfer:\n");
+ dsi_vc_flush_receive_data(0);
+ }
+
+#ifdef CONFIG_OMAP2_DSS_FAKE_VSYNC
+ dispc_fake_vsync_irq();
+#endif
+}
+
+static int dsi_update_thread(void *data)
+{
+ unsigned long timeout;
+ struct omap_dss_device *device;
+ u16 x, y, w, h;
+
+ while (1) {
+ bool sched;
+
+ wait_event_interruptible(dsi.waitqueue,
+ dsi.update_mode == OMAP_DSS_UPDATE_AUTO ||
+ (dsi.update_mode == OMAP_DSS_UPDATE_MANUAL &&
+ dsi.update_region.dirty == true) ||
+ kthread_should_stop());
+
+ if (kthread_should_stop())
+ break;
+
+ dsi_bus_lock();
+
+ if (dsi.update_mode == OMAP_DSS_UPDATE_DISABLED ||
+ kthread_should_stop()) {
+ dsi_bus_unlock();
+ break;
+ }
+
+ dsi_perf_mark_setup();
+
+ if (dsi.update_region.dirty) {
+ spin_lock(&dsi.update_lock);
+ dsi.active_update_region = dsi.update_region;
+ dsi.update_region.dirty = false;
+ spin_unlock(&dsi.update_lock);
+ }
+
+ device = dsi.active_update_region.device;
+ x = dsi.active_update_region.x;
+ y = dsi.active_update_region.y;
+ w = dsi.active_update_region.w;
+ h = dsi.active_update_region.h;
+
+ if (device->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) {
+
+ if (dsi.update_mode == OMAP_DSS_UPDATE_MANUAL)
+ dss_setup_partial_planes(device,
+ &x, &y, &w, &h);
+
+ dispc_set_lcd_size(w, h);
+ }
+
+ if (dsi.active_update_region.dirty) {
+ dsi.active_update_region.dirty = false;
+ /* XXX TODO we don't need to send the coords, if they
+ * are the same that are already programmed to the
+ * panel. That should speed up manual update a bit */
+ device->driver->setup_update(device, x, y, w, h);
+ }
+
+ dsi_perf_mark_start();
+
+ if (device->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) {
+ dsi_vc_config_vp(0);
+
+ if (dsi.te_enabled && dsi.use_ext_te)
+ device->driver->wait_for_te(device);
+
+ dsi.framedone_received = false;
+
+ dsi_update_screen_dispc(device, x, y, w, h);
+
+ /* wait for framedone */
+ timeout = msecs_to_jiffies(1000);
+ wait_event_timeout(dsi.waitqueue,
+ dsi.framedone_received == true,
+ timeout);
+
+ if (!dsi.framedone_received) {
+ DSSERR("framedone timeout\n");
+ DSSERR("failed update %d,%d %dx%d\n",
+ x, y, w, h);
+
+ dispc_enable_sidle();
+ dispc_enable_lcd_out(0);
+
+ dsi_reset_tx_fifo(0);
+ } else {
+ dsi_handle_framedone();
+ dsi_perf_show("DISPC");
+ }
+ } else {
+ dsi_update_screen_l4(device, x, y, w, h);
+ dsi_perf_show("L4");
+ }
+
+ sched = atomic_read(&dsi.bus_lock.count) < 0;
+
+ complete_all(&dsi.update_completion);
+
+ dsi_bus_unlock();
+
+ /* XXX We need to give others chance to get the bus lock. Is
+ * there a better way for this? */
+ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO && sched)
+ schedule_timeout_interruptible(1);
+ }
+
+ DSSDBG("update thread exiting\n");
+
+ return 0;
+}
+
+
+
+/* Display funcs */
+
+static int dsi_display_init_dispc(struct omap_dss_device *dssdev)
+{
+ int r;
+
+ r = omap_dispc_register_isr(dsi_framedone_irq_callback, NULL,
+ DISPC_IRQ_FRAMEDONE);
+ if (r) {
+ DSSERR("can't get FRAMEDONE irq\n");
+ return r;
+ }
+
+ dispc_set_lcd_display_type(OMAP_DSS_LCD_DISPLAY_TFT);
+
+ dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_DSI);
+ dispc_enable_fifohandcheck(1);
+
+ dispc_set_tft_data_lines(dssdev->ctrl.pixel_size);
+
+ {
+ struct omap_video_timings timings = {
+ .hsw = 1,
+ .hfp = 1,
+ .hbp = 1,
+ .vsw = 1,
+ .vfp = 0,
+ .vbp = 0,
+ };
+
+ dispc_set_lcd_timings(&timings);
+ }
+
+ return 0;
+}
+
+static void dsi_display_uninit_dispc(struct omap_dss_device *dssdev)
+{
+ omap_dispc_unregister_isr(dsi_framedone_irq_callback, NULL,
+ DISPC_IRQ_FRAMEDONE);
+}
+
+static int dsi_configure_dsi_clocks(struct omap_dss_device *dssdev)
+{
+ struct dsi_clock_info cinfo;
+ int r;
+
+ /* we always use DSS2_FCK as input clock */
+ cinfo.use_dss2_fck = true;
+ cinfo.regn = dssdev->phy.dsi.div.regn;
+ cinfo.regm = dssdev->phy.dsi.div.regm;
+ cinfo.regm3 = dssdev->phy.dsi.div.regm3;
+ cinfo.regm4 = dssdev->phy.dsi.div.regm4;
+ r = dsi_calc_clock_rates(&cinfo);
+ if (r)
+ return r;
+
+ r = dsi_pll_set_clock_div(&cinfo);
+ if (r) {
+ DSSERR("Failed to set dsi clocks\n");
+ return r;
+ }
+
+ return 0;
+}
+
+static int dsi_configure_dispc_clocks(struct omap_dss_device *dssdev)
+{
+ struct dispc_clock_info dispc_cinfo;
+ int r;
+ unsigned long long fck;
+
+ fck = dsi_get_dsi1_pll_rate();
+
+ dispc_cinfo.lck_div = dssdev->phy.dsi.div.lck_div;
+ dispc_cinfo.pck_div = dssdev->phy.dsi.div.pck_div;
+
+ r = dispc_calc_clock_rates(fck, &dispc_cinfo);
+ if (r) {
+ DSSERR("Failed to calc dispc clocks\n");
+ return r;
+ }
+
+ r = dispc_set_clock_div(&dispc_cinfo);
+ if (r) {
+ DSSERR("Failed to set dispc clocks\n");
+ return r;
+ }
+
+ return 0;
+}
+
+static int dsi_display_init_dsi(struct omap_dss_device *dssdev)
+{
+ int r;
+
+ _dsi_print_reset_status();
+
+ r = dsi_pll_init(dssdev, true, true);
+ if (r)
+ goto err0;
+
+ r = dsi_configure_dsi_clocks(dssdev);
+ if (r)
+ goto err1;
+
+ dss_select_clk_source(true, true);
+
+ DSSDBG("PLL OK\n");
+
+ r = dsi_configure_dispc_clocks(dssdev);
+ if (r)
+ goto err2;
+
+ r = dsi_complexio_init(dssdev);
+ if (r)
+ goto err2;
+
+ _dsi_print_reset_status();
+
+ dsi_proto_timings(dssdev);
+ dsi_set_lp_clk_divisor(dssdev);
+
+ if (1)
+ _dsi_print_reset_status();
+
+ r = dsi_proto_config(dssdev);
+ if (r)
+ goto err3;
+
+ /* enable interface */
+ dsi_vc_enable(0, 1);
+ dsi_if_enable(1);
+ dsi_force_tx_stop_mode_io();
+
+ if (dssdev->driver->enable) {
+ r = dssdev->driver->enable(dssdev);
+ if (r)
+ goto err4;
+ }
+
+ /* enable high-speed after initial config */
+ dsi_vc_enable_hs(0, 1);
+
+ return 0;
+err4:
+ dsi_if_enable(0);
+err3:
+ dsi_complexio_uninit();
+err2:
+ dss_select_clk_source(false, false);
+err1:
+ dsi_pll_uninit();
+err0:
+ return r;
+}
+
+static void dsi_display_uninit_dsi(struct omap_dss_device *dssdev)
+{
+ if (dssdev->driver->disable)
+ dssdev->driver->disable(dssdev);
+
+ dss_select_clk_source(false, false);
+ dsi_complexio_uninit();
+ dsi_pll_uninit();
+}
+
+static int dsi_core_init(void)
+{
+ /* Autoidle */
+ REG_FLD_MOD(DSI_SYSCONFIG, 1, 0, 0);
+
+ /* ENWAKEUP */
+ REG_FLD_MOD(DSI_SYSCONFIG, 1, 2, 2);
+
+ /* SIDLEMODE smart-idle */
+ REG_FLD_MOD(DSI_SYSCONFIG, 2, 4, 3);
+
+ _dsi_initialize_irq();
+
+ return 0;
+}
+
+static int dsi_display_enable(struct omap_dss_device *dssdev)
+{
+ int r = 0;
+
+ DSSDBG("dsi_display_enable\n");
+
+ mutex_lock(&dsi.lock);
+ dsi_bus_lock();
+
+ r = omap_dss_start_device(dssdev);
+ if (r) {
+ DSSERR("failed to start device\n");
+ goto err0;
+ }
+
+ if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) {
+ DSSERR("dssdev already enabled\n");
+ r = -EINVAL;
+ goto err1;
+ }
+
+ enable_clocks(1);
+ dsi_enable_pll_clock(1);
+
+ r = _dsi_reset();
+ if (r)
+ goto err2;
+
+ dsi_core_init();
+
+ r = dsi_display_init_dispc(dssdev);
+ if (r)
+ goto err2;
+
+ r = dsi_display_init_dsi(dssdev);
+ if (r)
+ goto err3;
+
+ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+
+ dsi.use_ext_te = dssdev->phy.dsi.ext_te;
+ r = dsi_set_te(dssdev, dsi.te_enabled);
+ if (r)
+ goto err4;
+
+ dsi_set_update_mode(dssdev, dsi.user_update_mode);
+
+ dsi_bus_unlock();
+ mutex_unlock(&dsi.lock);
+
+ return 0;
+
+err4:
+
+ dsi_display_uninit_dsi(dssdev);
+err3:
+ dsi_display_uninit_dispc(dssdev);
+err2:
+ enable_clocks(0);
+ dsi_enable_pll_clock(0);
+err1:
+ omap_dss_stop_device(dssdev);
+err0:
+ dsi_bus_unlock();
+ mutex_unlock(&dsi.lock);
+ DSSDBG("dsi_display_enable FAILED\n");
+ return r;
+}
+
+static void dsi_display_disable(struct omap_dss_device *dssdev)
+{
+ DSSDBG("dsi_display_disable\n");
+
+ mutex_lock(&dsi.lock);
+ dsi_bus_lock();
+
+ if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED ||
+ dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED)
+ goto end;
+
+ dsi.update_mode = OMAP_DSS_UPDATE_DISABLED;
+ dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
+
+ dsi_display_uninit_dispc(dssdev);
+
+ dsi_display_uninit_dsi(dssdev);
+
+ enable_clocks(0);
+ dsi_enable_pll_clock(0);
+
+ omap_dss_stop_device(dssdev);
+end:
+ dsi_bus_unlock();
+ mutex_unlock(&dsi.lock);
+}
+
+static int dsi_display_suspend(struct omap_dss_device *dssdev)
+{
+ DSSDBG("dsi_display_suspend\n");
+
+ mutex_lock(&dsi.lock);
+ dsi_bus_lock();
+
+ if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED ||
+ dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED)
+ goto end;
+
+ dsi.update_mode = OMAP_DSS_UPDATE_DISABLED;
+ dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
+
+ dsi_display_uninit_dispc(dssdev);
+
+ dsi_display_uninit_dsi(dssdev);
+
+ enable_clocks(0);
+ dsi_enable_pll_clock(0);
+end:
+ dsi_bus_unlock();
+ mutex_unlock(&dsi.lock);
+
+ return 0;
+}
+
+static int dsi_display_resume(struct omap_dss_device *dssdev)
+{
+ int r;
+
+ DSSDBG("dsi_display_resume\n");
+
+ mutex_lock(&dsi.lock);
+ dsi_bus_lock();
+
+ if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED) {
+ DSSERR("dssdev not suspended\n");
+ r = -EINVAL;
+ goto err0;
+ }
+
+ enable_clocks(1);
+ dsi_enable_pll_clock(1);
+
+ r = _dsi_reset();
+ if (r)
+ goto err1;
+
+ dsi_core_init();
+
+ r = dsi_display_init_dispc(dssdev);
+ if (r)
+ goto err1;
+
+ r = dsi_display_init_dsi(dssdev);
+ if (r)
+ goto err2;
+
+ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+
+ r = dsi_set_te(dssdev, dsi.te_enabled);
+ if (r)
+ goto err2;
+
+ dsi_set_update_mode(dssdev, dsi.user_update_mode);
+
+ dsi_bus_unlock();
+ mutex_unlock(&dsi.lock);
+
+ return 0;
+
+err2:
+ dsi_display_uninit_dispc(dssdev);
+err1:
+ enable_clocks(0);
+ dsi_enable_pll_clock(0);
+err0:
+ dsi_bus_unlock();
+ mutex_unlock(&dsi.lock);
+ DSSDBG("dsi_display_resume FAILED\n");
+ return r;
+}
+
+static int dsi_display_update(struct omap_dss_device *dssdev,
+ u16 x, u16 y, u16 w, u16 h)
+{
+ int r = 0;
+ u16 dw, dh;
+
+ DSSDBG("dsi_display_update(%d,%d %dx%d)\n", x, y, w, h);
+
+ mutex_lock(&dsi.lock);
+
+ if (dsi.update_mode != OMAP_DSS_UPDATE_MANUAL)
+ goto end;
+
+ if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
+ goto end;
+
+ dssdev->get_resolution(dssdev, &dw, &dh);
+
+ if (x > dw || y > dh)
+ goto end;
+
+ if (x + w > dw)
+ w = dw - x;
+
+ if (y + h > dh)
+ h = dh - y;
+
+ if (w == 0 || h == 0)
+ goto end;
+
+ if (w == 1) {
+ r = -EINVAL;
+ goto end;
+ }
+
+ dsi_set_update_region(dssdev, x, y, w, h);
+
+ wake_up(&dsi.waitqueue);
+
+end:
+ mutex_unlock(&dsi.lock);
+
+ return r;
+}
+
+static int dsi_display_sync(struct omap_dss_device *dssdev)
+{
+ bool wait;
+
+ DSSDBG("dsi_display_sync()\n");
+
+ mutex_lock(&dsi.lock);
+ dsi_bus_lock();
+
+ if (dsi.update_mode == OMAP_DSS_UPDATE_MANUAL &&
+ dsi.update_region.dirty) {
+ INIT_COMPLETION(dsi.update_completion);
+ wait = true;
+ } else {
+ wait = false;
+ }
+
+ dsi_bus_unlock();
+ mutex_unlock(&dsi.lock);
+
+ if (wait)
+ wait_for_completion_interruptible(&dsi.update_completion);
+
+ DSSDBG("dsi_display_sync() done\n");
+ return 0;
+}
+
+static int dsi_display_set_update_mode(struct omap_dss_device *dssdev,
+ enum omap_dss_update_mode mode)
+{
+ int r = 0;
+
+ DSSDBGF("%d", mode);
+
+ mutex_lock(&dsi.lock);
+ dsi_bus_lock();
+
+ dsi.user_update_mode = mode;
+ r = dsi_set_update_mode(dssdev, mode);
+
+ dsi_bus_unlock();
+ mutex_unlock(&dsi.lock);
+
+ return r;
+}
+
+static enum omap_dss_update_mode dsi_display_get_update_mode(
+ struct omap_dss_device *dssdev)
+{
+ return dsi.update_mode;
+}
+
+
+static int dsi_display_enable_te(struct omap_dss_device *dssdev, bool enable)
+{
+ int r = 0;
+
+ DSSDBGF("%d", enable);
+
+ if (!dssdev->driver->enable_te)
+ return -ENOENT;
+
+ dsi_bus_lock();
+
+ dsi.te_enabled = enable;
+
+ if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
+ goto end;
+
+ r = dsi_set_te(dssdev, enable);
+end:
+ dsi_bus_unlock();
+
+ return r;
+}
+
+static int dsi_display_get_te(struct omap_dss_device *dssdev)
+{
+ return dsi.te_enabled;
+}
+
+static int dsi_display_set_rotate(struct omap_dss_device *dssdev, u8 rotate)
+{
+
+ DSSDBGF("%d", rotate);
+
+ if (!dssdev->driver->set_rotate || !dssdev->driver->get_rotate)
+ return -EINVAL;
+
+ dsi_bus_lock();
+ dssdev->driver->set_rotate(dssdev, rotate);
+ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO) {
+ u16 w, h;
+ /* the display dimensions may have changed, so set a new
+ * update region */
+ dssdev->get_resolution(dssdev, &w, &h);
+ dsi_set_update_region(dssdev, 0, 0, w, h);
+ }
+ dsi_bus_unlock();
+
+ return 0;
+}
+
+static u8 dsi_display_get_rotate(struct omap_dss_device *dssdev)
+{
+ if (!dssdev->driver->set_rotate || !dssdev->driver->get_rotate)
+ return 0;
+
+ return dssdev->driver->get_rotate(dssdev);
+}
+
+static int dsi_display_set_mirror(struct omap_dss_device *dssdev, bool mirror)
+{
+ DSSDBGF("%d", mirror);
+
+ if (!dssdev->driver->set_mirror || !dssdev->driver->get_mirror)
+ return -EINVAL;
+
+ dsi_bus_lock();
+ dssdev->driver->set_mirror(dssdev, mirror);
+ dsi_bus_unlock();
+
+ return 0;
+}
+
+static bool dsi_display_get_mirror(struct omap_dss_device *dssdev)
+{
+ if (!dssdev->driver->set_mirror || !dssdev->driver->get_mirror)
+ return 0;
+
+ return dssdev->driver->get_mirror(dssdev);
+}
+
+static int dsi_display_run_test(struct omap_dss_device *dssdev, int test_num)
+{
+ int r;
+
+ if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
+ return -EIO;
+
+ DSSDBGF("%d", test_num);
+
+ dsi_bus_lock();
+
+ /* run test first in low speed mode */
+ dsi_vc_enable_hs(0, 0);
+
+ if (dssdev->driver->run_test) {
+ r = dssdev->driver->run_test(dssdev, test_num);
+ if (r)
+ goto end;
+ }
+
+ /* then in high speed */
+ dsi_vc_enable_hs(0, 1);
+
+ if (dssdev->driver->run_test) {
+ r = dssdev->driver->run_test(dssdev, test_num);
+ if (r)
+ goto end;
+ }
+
+end:
+ dsi_vc_enable_hs(0, 1);
+
+ dsi_bus_unlock();
+
+ return r;
+}
+
+static int dsi_display_memory_read(struct omap_dss_device *dssdev,
+ void *buf, size_t size,
+ u16 x, u16 y, u16 w, u16 h)
+{
+ int r;
+
+ DSSDBGF("");
+
+ if (!dssdev->driver->memory_read)
+ return -EINVAL;
+
+ if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
+ return -EIO;
+
+ dsi_bus_lock();
+
+ r = dssdev->driver->memory_read(dssdev, buf, size,
+ x, y, w, h);
+
+ /* Memory read usually changes the update area. This will
+ * force the next update to re-set the update area */
+ dsi.active_update_region.dirty = true;
+
+ dsi_bus_unlock();
+
+ return r;
+}
+
+void dsi_get_overlay_fifo_thresholds(enum omap_plane plane,
+ u32 fifo_size, enum omap_burst_size *burst_size,
+ u32 *fifo_low, u32 *fifo_high)
+{
+ unsigned burst_size_bytes;
+
+ *burst_size = OMAP_DSS_BURST_16x32;
+ burst_size_bytes = 16 * 32 / 8;
+
+ *fifo_high = fifo_size - burst_size_bytes;
+ *fifo_low = fifo_size - burst_size_bytes * 8;
+}
+
+int dsi_init_display(struct omap_dss_device *dssdev)
+{
+ DSSDBG("DSI init\n");
+
+ dssdev->enable = dsi_display_enable;
+ dssdev->disable = dsi_display_disable;
+ dssdev->suspend = dsi_display_suspend;
+ dssdev->resume = dsi_display_resume;
+ dssdev->update = dsi_display_update;
+ dssdev->sync = dsi_display_sync;
+ dssdev->set_update_mode = dsi_display_set_update_mode;
+ dssdev->get_update_mode = dsi_display_get_update_mode;
+ dssdev->enable_te = dsi_display_enable_te;
+ dssdev->get_te = dsi_display_get_te;
+
+ dssdev->get_rotate = dsi_display_get_rotate;
+ dssdev->set_rotate = dsi_display_set_rotate;
+
+ dssdev->get_mirror = dsi_display_get_mirror;
+ dssdev->set_mirror = dsi_display_set_mirror;
+
+ dssdev->run_test = dsi_display_run_test;
+ dssdev->memory_read = dsi_display_memory_read;
+
+ /* XXX these should be figured out dynamically */
+ dssdev->caps = OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE |
+ OMAP_DSS_DISPLAY_CAP_TEAR_ELIM;
+
+ dsi.vc[0].dssdev = dssdev;
+ dsi.vc[1].dssdev = dssdev;
+
+ return 0;
+}
+
+int dsi_init(struct platform_device *pdev)
+{
+ u32 rev;
+ int r;
+ struct sched_param param = {
+ .sched_priority = MAX_USER_RT_PRIO-1
+ };
+
+ spin_lock_init(&dsi.errors_lock);
+ dsi.errors = 0;
+
+ init_completion(&dsi.bta_completion);
+ init_completion(&dsi.update_completion);
+
+ dsi.thread = kthread_create(dsi_update_thread, NULL, "dsi");
+ if (IS_ERR(dsi.thread)) {
+ DSSERR("cannot create kthread\n");
+ r = PTR_ERR(dsi.thread);
+ goto err0;
+ }
+ sched_setscheduler(dsi.thread, SCHED_FIFO, ¶m);
+
+ init_waitqueue_head(&dsi.waitqueue);
+ spin_lock_init(&dsi.update_lock);
+
+ mutex_init(&dsi.lock);
+ mutex_init(&dsi.bus_lock);
+
+#ifdef DSI_CATCH_MISSING_TE
+ init_timer(&dsi.te_timer);
+ dsi.te_timer.function = dsi_te_timeout;
+ dsi.te_timer.data = 0;
+#endif
+
+ dsi.update_mode = OMAP_DSS_UPDATE_DISABLED;
+ dsi.user_update_mode = OMAP_DSS_UPDATE_DISABLED;
+
+ dsi.base = ioremap(DSI_BASE, DSI_SZ_REGS);
+ if (!dsi.base) {
+ DSSERR("can't ioremap DSI\n");
+ r = -ENOMEM;
+ goto err1;
+ }
+
+ dsi.vdds_dsi_reg = regulator_get(&pdev->dev, "vdds_dsi");
+ if (IS_ERR(dsi.vdds_dsi_reg)) {
+ iounmap(dsi.base);
+ DSSERR("can't get VDDS_DSI regulator\n");
+ r = PTR_ERR(dsi.vdds_dsi_reg);
+ goto err2;
+ }
+
+ enable_clocks(1);
+
+ rev = dsi_read_reg(DSI_REVISION);
+ printk(KERN_INFO "OMAP DSI rev %d.%d\n",
+ FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0));
+
+ enable_clocks(0);
+
+ wake_up_process(dsi.thread);
+
+ return 0;
+err2:
+ iounmap(dsi.base);
+err1:
+ kthread_stop(dsi.thread);
+err0:
+ return r;
+}
+
+void dsi_exit(void)
+{
+ kthread_stop(dsi.thread);
+
+ regulator_put(dsi.vdds_dsi_reg);
+
+ iounmap(dsi.base);
+
+ DSSDBG("omap_dsi_exit\n");
+}
+
--- /dev/null
+/*
+ * linux/drivers/video/omap2/dss/dss.c
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * Some code and ideas taken from drivers/video/omap/ driver
+ * by Imre Deak.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define DSS_SUBSYS_NAME "DSS"
+
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <linux/err.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/seq_file.h>
+#include <linux/clk.h>
+
+#include <plat/display.h>
+#include "dss.h"
+
+#define DSS_BASE 0x48050000
+
+#define DSS_SZ_REGS SZ_512
+
+struct dss_reg {
+ u16 idx;
+};
+
+#define DSS_REG(idx) ((const struct dss_reg) { idx })
+
+#define DSS_REVISION DSS_REG(0x0000)
+#define DSS_SYSCONFIG DSS_REG(0x0010)
+#define DSS_SYSSTATUS DSS_REG(0x0014)
+#define DSS_IRQSTATUS DSS_REG(0x0018)
+#define DSS_CONTROL DSS_REG(0x0040)
+#define DSS_SDI_CONTROL DSS_REG(0x0044)
+#define DSS_PLL_CONTROL DSS_REG(0x0048)
+#define DSS_SDI_STATUS DSS_REG(0x005C)
+
+#define REG_GET(idx, start, end) \
+ FLD_GET(dss_read_reg(idx), start, end)
+
+#define REG_FLD_MOD(idx, val, start, end) \
+ dss_write_reg(idx, FLD_MOD(dss_read_reg(idx), val, start, end))
+
+static struct {
+ void __iomem *base;
+
+ struct clk *dpll4_m4_ck;
+
+ unsigned long cache_req_pck;
+ unsigned long cache_prate;
+ struct dss_clock_info cache_dss_cinfo;
+ struct dispc_clock_info cache_dispc_cinfo;
+
+ u32 ctx[DSS_SZ_REGS / sizeof(u32)];
+} dss;
+
+static int _omap_dss_wait_reset(void);
+
+static inline void dss_write_reg(const struct dss_reg idx, u32 val)
+{
+ __raw_writel(val, dss.base + idx.idx);
+}
+
+static inline u32 dss_read_reg(const struct dss_reg idx)
+{
+ return __raw_readl(dss.base + idx.idx);
+}
+
+#define SR(reg) \
+ dss.ctx[(DSS_##reg).idx / sizeof(u32)] = dss_read_reg(DSS_##reg)
+#define RR(reg) \
+ dss_write_reg(DSS_##reg, dss.ctx[(DSS_##reg).idx / sizeof(u32)])
+
+void dss_save_context(void)
+{
+ if (cpu_is_omap24xx())
+ return;
+
+ SR(SYSCONFIG);
+ SR(CONTROL);
+
+#ifdef CONFIG_OMAP2_DSS_SDI
+ SR(SDI_CONTROL);
+ SR(PLL_CONTROL);
+#endif
+}
+
+void dss_restore_context(void)
+{
+ if (_omap_dss_wait_reset())
+ DSSERR("DSS not coming out of reset after sleep\n");
+
+ RR(SYSCONFIG);
+ RR(CONTROL);
+
+#ifdef CONFIG_OMAP2_DSS_SDI
+ RR(SDI_CONTROL);
+ RR(PLL_CONTROL);
+#endif
+}
+
+#undef SR
+#undef RR
+
+void dss_sdi_init(u8 datapairs)
+{
+ u32 l;
+
+ BUG_ON(datapairs > 3 || datapairs < 1);
+
+ l = dss_read_reg(DSS_SDI_CONTROL);
+ l = FLD_MOD(l, 0xf, 19, 15); /* SDI_PDIV */
+ l = FLD_MOD(l, datapairs-1, 3, 2); /* SDI_PRSEL */
+ l = FLD_MOD(l, 2, 1, 0); /* SDI_BWSEL */
+ dss_write_reg(DSS_SDI_CONTROL, l);
+
+ l = dss_read_reg(DSS_PLL_CONTROL);
+ l = FLD_MOD(l, 0x7, 25, 22); /* SDI_PLL_FREQSEL */
+ l = FLD_MOD(l, 0xb, 16, 11); /* SDI_PLL_REGN */
+ l = FLD_MOD(l, 0xb4, 10, 1); /* SDI_PLL_REGM */
+ dss_write_reg(DSS_PLL_CONTROL, l);
+}
+
+int dss_sdi_enable(void)
+{
+ unsigned long timeout;
+
+ dispc_pck_free_enable(1);
+
+ /* Reset SDI PLL */
+ REG_FLD_MOD(DSS_PLL_CONTROL, 1, 18, 18); /* SDI_PLL_SYSRESET */
+ udelay(1); /* wait 2x PCLK */
+
+ /* Lock SDI PLL */
+ REG_FLD_MOD(DSS_PLL_CONTROL, 1, 28, 28); /* SDI_PLL_GOBIT */
+
+ /* Waiting for PLL lock request to complete */
+ timeout = jiffies + msecs_to_jiffies(500);
+ while (dss_read_reg(DSS_SDI_STATUS) & (1 << 6)) {
+ if (time_after_eq(jiffies, timeout)) {
+ DSSERR("PLL lock request timed out\n");
+ goto err1;
+ }
+ }
+
+ /* Clearing PLL_GO bit */
+ REG_FLD_MOD(DSS_PLL_CONTROL, 0, 28, 28);
+
+ /* Waiting for PLL to lock */
+ timeout = jiffies + msecs_to_jiffies(500);
+ while (!(dss_read_reg(DSS_SDI_STATUS) & (1 << 5))) {
+ if (time_after_eq(jiffies, timeout)) {
+ DSSERR("PLL lock timed out\n");
+ goto err1;
+ }
+ }
+
+ dispc_lcd_enable_signal(1);
+
+ /* Waiting for SDI reset to complete */
+ timeout = jiffies + msecs_to_jiffies(500);
+ while (!(dss_read_reg(DSS_SDI_STATUS) & (1 << 2))) {
+ if (time_after_eq(jiffies, timeout)) {
+ DSSERR("SDI reset timed out\n");
+ goto err2;
+ }
+ }
+
+ return 0;
+
+ err2:
+ dispc_lcd_enable_signal(0);
+ err1:
+ /* Reset SDI PLL */
+ REG_FLD_MOD(DSS_PLL_CONTROL, 0, 18, 18); /* SDI_PLL_SYSRESET */
+
+ dispc_pck_free_enable(0);
+
+ return -ETIMEDOUT;
+}
+
+void dss_sdi_disable(void)
+{
+ dispc_lcd_enable_signal(0);
+
+ dispc_pck_free_enable(0);
+
+ /* Reset SDI PLL */
+ REG_FLD_MOD(DSS_PLL_CONTROL, 0, 18, 18); /* SDI_PLL_SYSRESET */
+}
+
+void dss_dump_clocks(struct seq_file *s)
+{
+ unsigned long dpll4_ck_rate;
+ unsigned long dpll4_m4_ck_rate;
+
+ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
+
+ dpll4_ck_rate = clk_get_rate(clk_get_parent(dss.dpll4_m4_ck));
+ dpll4_m4_ck_rate = clk_get_rate(dss.dpll4_m4_ck);
+
+ seq_printf(s, "- DSS -\n");
+
+ seq_printf(s, "dpll4_ck %lu\n", dpll4_ck_rate);
+
+ seq_printf(s, "dss1_alwon_fclk = %lu / %lu * 2 = %lu\n",
+ dpll4_ck_rate,
+ dpll4_ck_rate / dpll4_m4_ck_rate,
+ dss_clk_get_rate(DSS_CLK_FCK1));
+
+ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
+}
+
+void dss_dump_regs(struct seq_file *s)
+{
+#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dss_read_reg(r))
+
+ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
+
+ DUMPREG(DSS_REVISION);
+ DUMPREG(DSS_SYSCONFIG);
+ DUMPREG(DSS_SYSSTATUS);
+ DUMPREG(DSS_IRQSTATUS);
+ DUMPREG(DSS_CONTROL);
+ DUMPREG(DSS_SDI_CONTROL);
+ DUMPREG(DSS_PLL_CONTROL);
+ DUMPREG(DSS_SDI_STATUS);
+
+ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
+#undef DUMPREG
+}
+
+void dss_select_clk_source(bool dsi, bool dispc)
+{
+ u32 r;
+ r = dss_read_reg(DSS_CONTROL);
+ r = FLD_MOD(r, dsi, 1, 1); /* DSI_CLK_SWITCH */
+ r = FLD_MOD(r, dispc, 0, 0); /* DISPC_CLK_SWITCH */
+ dss_write_reg(DSS_CONTROL, r);
+}
+
+int dss_get_dsi_clk_source(void)
+{
+ return FLD_GET(dss_read_reg(DSS_CONTROL), 1, 1);
+}
+
+int dss_get_dispc_clk_source(void)
+{
+ return FLD_GET(dss_read_reg(DSS_CONTROL), 0, 0);
+}
+
+/* calculate clock rates using dividers in cinfo */
+int dss_calc_clock_rates(struct dss_clock_info *cinfo)
+{
+ unsigned long prate;
+
+ if (cinfo->fck_div > 16 || cinfo->fck_div == 0)
+ return -EINVAL;
+
+ prate = clk_get_rate(clk_get_parent(dss.dpll4_m4_ck));
+
+ cinfo->fck = prate / cinfo->fck_div;
+
+ return 0;
+}
+
+int dss_set_clock_div(struct dss_clock_info *cinfo)
+{
+ unsigned long prate;
+ int r;
+
+ if (cpu_is_omap34xx()) {
+ prate = clk_get_rate(clk_get_parent(dss.dpll4_m4_ck));
+ DSSDBG("dpll4_m4 = %ld\n", prate);
+
+ r = clk_set_rate(dss.dpll4_m4_ck, prate / cinfo->fck_div);
+ if (r)
+ return r;
+ }
+
+ DSSDBG("fck = %ld (%d)\n", cinfo->fck, cinfo->fck_div);
+
+ return 0;
+}
+
+int dss_get_clock_div(struct dss_clock_info *cinfo)
+{
+ cinfo->fck = dss_clk_get_rate(DSS_CLK_FCK1);
+
+ if (cpu_is_omap34xx()) {
+ unsigned long prate;
+ prate = clk_get_rate(clk_get_parent(dss.dpll4_m4_ck));
+ cinfo->fck_div = prate / (cinfo->fck / 2);
+ } else {
+ cinfo->fck_div = 0;
+ }
+
+ return 0;
+}
+
+unsigned long dss_get_dpll4_rate(void)
+{
+ if (cpu_is_omap34xx())
+ return clk_get_rate(clk_get_parent(dss.dpll4_m4_ck));
+ else
+ return 0;
+}
+
+int dss_calc_clock_div(bool is_tft, unsigned long req_pck,
+ struct dss_clock_info *dss_cinfo,
+ struct dispc_clock_info *dispc_cinfo)
+{
+ unsigned long prate;
+ struct dss_clock_info best_dss;
+ struct dispc_clock_info best_dispc;
+
+ unsigned long fck;
+
+ u16 fck_div;
+
+ int match = 0;
+ int min_fck_per_pck;
+
+ prate = dss_get_dpll4_rate();
+
+ fck = dss_clk_get_rate(DSS_CLK_FCK1);
+ if (req_pck == dss.cache_req_pck &&
+ ((cpu_is_omap34xx() && prate == dss.cache_prate) ||
+ dss.cache_dss_cinfo.fck == fck)) {
+ DSSDBG("dispc clock info found from cache.\n");
+ *dss_cinfo = dss.cache_dss_cinfo;
+ *dispc_cinfo = dss.cache_dispc_cinfo;
+ return 0;
+ }
+
+ min_fck_per_pck = CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK;
+
+ if (min_fck_per_pck &&
+ req_pck * min_fck_per_pck > DISPC_MAX_FCK) {
+ DSSERR("Requested pixel clock not possible with the current "
+ "OMAP2_DSS_MIN_FCK_PER_PCK setting. Turning "
+ "the constraint off.\n");
+ min_fck_per_pck = 0;
+ }
+
+retry:
+ memset(&best_dss, 0, sizeof(best_dss));
+ memset(&best_dispc, 0, sizeof(best_dispc));
+
+ if (cpu_is_omap24xx()) {
+ struct dispc_clock_info cur_dispc;
+ /* XXX can we change the clock on omap2? */
+ fck = dss_clk_get_rate(DSS_CLK_FCK1);
+ fck_div = 1;
+
+ dispc_find_clk_divs(is_tft, req_pck, fck, &cur_dispc);
+ match = 1;
+
+ best_dss.fck = fck;
+ best_dss.fck_div = fck_div;
+
+ best_dispc = cur_dispc;
+
+ goto found;
+ } else if (cpu_is_omap34xx()) {
+ for (fck_div = 16; fck_div > 0; --fck_div) {
+ struct dispc_clock_info cur_dispc;
+
+ fck = prate / fck_div * 2;
+
+ if (fck > DISPC_MAX_FCK)
+ continue;
+
+ if (min_fck_per_pck &&
+ fck < req_pck * min_fck_per_pck)
+ continue;
+
+ match = 1;
+
+ dispc_find_clk_divs(is_tft, req_pck, fck, &cur_dispc);
+
+ if (abs(cur_dispc.pck - req_pck) <
+ abs(best_dispc.pck - req_pck)) {
+
+ best_dss.fck = fck;
+ best_dss.fck_div = fck_div;
+
+ best_dispc = cur_dispc;
+
+ if (cur_dispc.pck == req_pck)
+ goto found;
+ }
+ }
+ } else {
+ BUG();
+ }
+
+found:
+ if (!match) {
+ if (min_fck_per_pck) {
+ DSSERR("Could not find suitable clock settings.\n"
+ "Turning FCK/PCK constraint off and"
+ "trying again.\n");
+ min_fck_per_pck = 0;
+ goto retry;
+ }
+
+ DSSERR("Could not find suitable clock settings.\n");
+
+ return -EINVAL;
+ }
+
+ if (dss_cinfo)
+ *dss_cinfo = best_dss;
+ if (dispc_cinfo)
+ *dispc_cinfo = best_dispc;
+
+ dss.cache_req_pck = req_pck;
+ dss.cache_prate = prate;
+ dss.cache_dss_cinfo = best_dss;
+ dss.cache_dispc_cinfo = best_dispc;
+
+ return 0;
+}
+
+
+
+static irqreturn_t dss_irq_handler_omap2(int irq, void *arg)
+{
+ dispc_irq_handler();
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t dss_irq_handler_omap3(int irq, void *arg)
+{
+ u32 irqstatus;
+
+ irqstatus = dss_read_reg(DSS_IRQSTATUS);
+
+ if (irqstatus & (1<<0)) /* DISPC_IRQ */
+ dispc_irq_handler();
+#ifdef CONFIG_OMAP2_DSS_DSI
+ if (irqstatus & (1<<1)) /* DSI_IRQ */
+ dsi_irq_handler();
+#endif
+
+ return IRQ_HANDLED;
+}
+
+static int _omap_dss_wait_reset(void)
+{
+ unsigned timeout = 1000;
+
+ while (REG_GET(DSS_SYSSTATUS, 0, 0) == 0) {
+ udelay(1);
+ if (!--timeout) {
+ DSSERR("soft reset failed\n");
+ return -ENODEV;
+ }
+ }
+
+ return 0;
+}
+
+static int _omap_dss_reset(void)
+{
+ /* Soft reset */
+ REG_FLD_MOD(DSS_SYSCONFIG, 1, 1, 1);
+ return _omap_dss_wait_reset();
+}
+
+void dss_set_venc_output(enum omap_dss_venc_type type)
+{
+ int l = 0;
+
+ if (type == OMAP_DSS_VENC_TYPE_COMPOSITE)
+ l = 0;
+ else if (type == OMAP_DSS_VENC_TYPE_SVIDEO)
+ l = 1;
+ else
+ BUG();
+
+ /* venc out selection. 0 = comp, 1 = svideo */
+ REG_FLD_MOD(DSS_CONTROL, l, 6, 6);
+}
+
+void dss_set_dac_pwrdn_bgz(bool enable)
+{
+ REG_FLD_MOD(DSS_CONTROL, enable, 5, 5); /* DAC Power-Down Control */
+}
+
+int dss_init(bool skip_init)
+{
+ int r;
+ u32 rev;
+
+ dss.base = ioremap(DSS_BASE, DSS_SZ_REGS);
+ if (!dss.base) {
+ DSSERR("can't ioremap DSS\n");
+ r = -ENOMEM;
+ goto fail0;
+ }
+
+ if (!skip_init) {
+ /* disable LCD and DIGIT output. This seems to fix the synclost
+ * problem that we get, if the bootloader starts the DSS and
+ * the kernel resets it */
+ omap_writel(omap_readl(0x48050440) & ~0x3, 0x48050440);
+
+ /* We need to wait here a bit, otherwise we sometimes start to
+ * get synclost errors, and after that only power cycle will
+ * restore DSS functionality. I have no idea why this happens.
+ * And we have to wait _before_ resetting the DSS, but after
+ * enabling clocks.
+ */
+ msleep(50);
+
+ _omap_dss_reset();
+ }
+
+ /* autoidle */
+ REG_FLD_MOD(DSS_SYSCONFIG, 1, 0, 0);
+
+ /* Select DPLL */
+ REG_FLD_MOD(DSS_CONTROL, 0, 0, 0);
+
+#ifdef CONFIG_OMAP2_DSS_VENC
+ REG_FLD_MOD(DSS_CONTROL, 1, 4, 4); /* venc dac demen */
+ REG_FLD_MOD(DSS_CONTROL, 1, 3, 3); /* venc clock 4x enable */
+ REG_FLD_MOD(DSS_CONTROL, 0, 2, 2); /* venc clock mode = normal */
+#endif
+
+ r = request_irq(INT_24XX_DSS_IRQ,
+ cpu_is_omap24xx()
+ ? dss_irq_handler_omap2
+ : dss_irq_handler_omap3,
+ 0, "OMAP DSS", NULL);
+
+ if (r < 0) {
+ DSSERR("omap2 dss: request_irq failed\n");
+ goto fail1;
+ }
+
+ if (cpu_is_omap34xx()) {
+ dss.dpll4_m4_ck = clk_get(NULL, "dpll4_m4_ck");
+ if (IS_ERR(dss.dpll4_m4_ck)) {
+ DSSERR("Failed to get dpll4_m4_ck\n");
+ r = PTR_ERR(dss.dpll4_m4_ck);
+ goto fail2;
+ }
+ }
+
+ dss_save_context();
+
+ rev = dss_read_reg(DSS_REVISION);
+ printk(KERN_INFO "OMAP DSS rev %d.%d\n",
+ FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0));
+
+ return 0;
+
+fail2:
+ free_irq(INT_24XX_DSS_IRQ, NULL);
+fail1:
+ iounmap(dss.base);
+fail0:
+ return r;
+}
+
+void dss_exit(void)
+{
+ if (cpu_is_omap34xx())
+ clk_put(dss.dpll4_m4_ck);
+
+ free_irq(INT_24XX_DSS_IRQ, NULL);
+
+ iounmap(dss.base);
+}
+
--- /dev/null
+/*
+ * linux/drivers/video/omap2/dss/dss.h
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * Some code and ideas taken from drivers/video/omap/ driver
+ * by Imre Deak.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __OMAP2_DSS_H
+#define __OMAP2_DSS_H
+
+#ifdef CONFIG_OMAP2_DSS_DEBUG_SUPPORT
+#define DEBUG
+#endif
+
+#ifdef DEBUG
+extern unsigned int dss_debug;
+#ifdef DSS_SUBSYS_NAME
+#define DSSDBG(format, ...) \
+ if (dss_debug) \
+ printk(KERN_DEBUG "omapdss " DSS_SUBSYS_NAME ": " format, \
+ ## __VA_ARGS__)
+#else
+#define DSSDBG(format, ...) \
+ if (dss_debug) \
+ printk(KERN_DEBUG "omapdss: " format, ## __VA_ARGS__)
+#endif
+
+#ifdef DSS_SUBSYS_NAME
+#define DSSDBGF(format, ...) \
+ if (dss_debug) \
+ printk(KERN_DEBUG "omapdss " DSS_SUBSYS_NAME \
+ ": %s(" format ")\n", \
+ __func__, \
+ ## __VA_ARGS__)
+#else
+#define DSSDBGF(format, ...) \
+ if (dss_debug) \
+ printk(KERN_DEBUG "omapdss: " \
+ ": %s(" format ")\n", \
+ __func__, \
+ ## __VA_ARGS__)
+#endif
+
+#else /* DEBUG */
+#define DSSDBG(format, ...)
+#define DSSDBGF(format, ...)
+#endif
+
+
+#ifdef DSS_SUBSYS_NAME
+#define DSSERR(format, ...) \
+ printk(KERN_ERR "omapdss " DSS_SUBSYS_NAME " error: " format, \
+ ## __VA_ARGS__)
+#else
+#define DSSERR(format, ...) \
+ printk(KERN_ERR "omapdss error: " format, ## __VA_ARGS__)
+#endif
+
+#ifdef DSS_SUBSYS_NAME
+#define DSSINFO(format, ...) \
+ printk(KERN_INFO "omapdss " DSS_SUBSYS_NAME ": " format, \
+ ## __VA_ARGS__)
+#else
+#define DSSINFO(format, ...) \
+ printk(KERN_INFO "omapdss: " format, ## __VA_ARGS__)
+#endif
+
+#ifdef DSS_SUBSYS_NAME
+#define DSSWARN(format, ...) \
+ printk(KERN_WARNING "omapdss " DSS_SUBSYS_NAME ": " format, \
+ ## __VA_ARGS__)
+#else
+#define DSSWARN(format, ...) \
+ printk(KERN_WARNING "omapdss: " format, ## __VA_ARGS__)
+#endif
+
+/* OMAP TRM gives bitfields as start:end, where start is the higher bit
+ number. For example 7:0 */
+#define FLD_MASK(start, end) (((1 << ((start) - (end) + 1)) - 1) << (end))
+#define FLD_VAL(val, start, end) (((val) << (end)) & FLD_MASK(start, end))
+#define FLD_GET(val, start, end) (((val) & FLD_MASK(start, end)) >> (end))
+#define FLD_MOD(orig, val, start, end) \
+ (((orig) & ~FLD_MASK(start, end)) | FLD_VAL(val, start, end))
+
+#define DISPC_MAX_FCK 173000000
+
+enum omap_burst_size {
+ OMAP_DSS_BURST_4x32 = 0,
+ OMAP_DSS_BURST_8x32 = 1,
+ OMAP_DSS_BURST_16x32 = 2,
+};
+
+enum omap_parallel_interface_mode {
+ OMAP_DSS_PARALLELMODE_BYPASS, /* MIPI DPI */
+ OMAP_DSS_PARALLELMODE_RFBI, /* MIPI DBI */
+ OMAP_DSS_PARALLELMODE_DSI,
+};
+
+enum dss_clock {
+ DSS_CLK_ICK = 1 << 0,
+ DSS_CLK_FCK1 = 1 << 1,
+ DSS_CLK_FCK2 = 1 << 2,
+ DSS_CLK_54M = 1 << 3,
+ DSS_CLK_96M = 1 << 4,
+};
+
+struct dss_clock_info {
+ /* rates that we get with dividers below */
+ unsigned long fck;
+
+ /* dividers */
+ u16 fck_div;
+};
+
+struct dispc_clock_info {
+ /* rates that we get with dividers below */
+ unsigned long lck;
+ unsigned long pck;
+
+ /* dividers */
+ u16 lck_div;
+ u16 pck_div;
+};
+
+struct dsi_clock_info {
+ /* rates that we get with dividers below */
+ unsigned long fint;
+ unsigned long clkin4ddr;
+ unsigned long clkin;
+ unsigned long dsi1_pll_fclk;
+ unsigned long dsi2_pll_fclk;
+
+ unsigned long lp_clk;
+
+ /* dividers */
+ u16 regn;
+ u16 regm;
+ u16 regm3;
+ u16 regm4;
+
+ u16 lp_clk_div;
+
+ u8 highfreq;
+ bool use_dss2_fck;
+};
+
+struct seq_file;
+struct platform_device;
+
+/* core */
+void dss_clk_enable(enum dss_clock clks);
+void dss_clk_disable(enum dss_clock clks);
+unsigned long dss_clk_get_rate(enum dss_clock clk);
+int dss_need_ctx_restore(void);
+void dss_dump_clocks(struct seq_file *s);
+struct bus_type *dss_get_bus(void);
+
+/* display */
+int dss_suspend_all_devices(void);
+int dss_resume_all_devices(void);
+void dss_disable_all_devices(void);
+
+void dss_init_device(struct platform_device *pdev,
+ struct omap_dss_device *dssdev);
+void dss_uninit_device(struct platform_device *pdev,
+ struct omap_dss_device *dssdev);
+bool dss_use_replication(struct omap_dss_device *dssdev,
+ enum omap_color_mode mode);
+void default_get_overlay_fifo_thresholds(enum omap_plane plane,
+ u32 fifo_size, enum omap_burst_size *burst_size,
+ u32 *fifo_low, u32 *fifo_high);
+
+/* manager */
+int dss_init_overlay_managers(struct platform_device *pdev);
+void dss_uninit_overlay_managers(struct platform_device *pdev);
+int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl);
+void dss_setup_partial_planes(struct omap_dss_device *dssdev,
+ u16 *x, u16 *y, u16 *w, u16 *h);
+void dss_start_update(struct omap_dss_device *dssdev);
+
+/* overlay */
+void dss_init_overlays(struct platform_device *pdev);
+void dss_uninit_overlays(struct platform_device *pdev);
+int dss_check_overlay(struct omap_overlay *ovl, struct omap_dss_device *dssdev);
+void dss_overlay_setup_dispc_manager(struct omap_overlay_manager *mgr);
+#ifdef L4_EXAMPLE
+void dss_overlay_setup_l4_manager(struct omap_overlay_manager *mgr);
+#endif
+void dss_recheck_connections(struct omap_dss_device *dssdev, bool force);
+
+/* DSS */
+int dss_init(bool skip_init);
+void dss_exit(void);
+
+void dss_save_context(void);
+void dss_restore_context(void);
+
+void dss_dump_regs(struct seq_file *s);
+
+void dss_sdi_init(u8 datapairs);
+int dss_sdi_enable(void);
+void dss_sdi_disable(void);
+
+void dss_select_clk_source(bool dsi, bool dispc);
+int dss_get_dsi_clk_source(void);
+int dss_get_dispc_clk_source(void);
+void dss_set_venc_output(enum omap_dss_venc_type type);
+void dss_set_dac_pwrdn_bgz(bool enable);
+
+unsigned long dss_get_dpll4_rate(void);
+int dss_calc_clock_rates(struct dss_clock_info *cinfo);
+int dss_set_clock_div(struct dss_clock_info *cinfo);
+int dss_get_clock_div(struct dss_clock_info *cinfo);
+int dss_calc_clock_div(bool is_tft, unsigned long req_pck,
+ struct dss_clock_info *dss_cinfo,
+ struct dispc_clock_info *dispc_cinfo);
+
+/* SDI */
+int sdi_init(bool skip_init);
+void sdi_exit(void);
+int sdi_init_display(struct omap_dss_device *display);
+
+/* DSI */
+int dsi_init(struct platform_device *pdev);
+void dsi_exit(void);
+
+void dsi_dump_clocks(struct seq_file *s);
+void dsi_dump_regs(struct seq_file *s);
+
+void dsi_save_context(void);
+void dsi_restore_context(void);
+
+int dsi_init_display(struct omap_dss_device *display);
+void dsi_irq_handler(void);
+unsigned long dsi_get_dsi1_pll_rate(void);
+int dsi_pll_set_clock_div(struct dsi_clock_info *cinfo);
+int dsi_pll_calc_clock_div_pck(bool is_tft, unsigned long req_pck,
+ struct dsi_clock_info *cinfo,
+ struct dispc_clock_info *dispc_cinfo);
+int dsi_pll_init(struct omap_dss_device *dssdev, bool enable_hsclk,
+ bool enable_hsdiv);
+void dsi_pll_uninit(void);
+void dsi_get_overlay_fifo_thresholds(enum omap_plane plane,
+ u32 fifo_size, enum omap_burst_size *burst_size,
+ u32 *fifo_low, u32 *fifo_high);
+
+/* DPI */
+int dpi_init(void);
+void dpi_exit(void);
+int dpi_init_display(struct omap_dss_device *dssdev);
+
+/* DISPC */
+int dispc_init(void);
+void dispc_exit(void);
+void dispc_dump_clocks(struct seq_file *s);
+void dispc_dump_regs(struct seq_file *s);
+void dispc_irq_handler(void);
+void dispc_fake_vsync_irq(void);
+
+void dispc_save_context(void);
+void dispc_restore_context(void);
+
+void dispc_enable_sidle(void);
+void dispc_disable_sidle(void);
+
+void dispc_lcd_enable_signal_polarity(bool act_high);
+void dispc_lcd_enable_signal(bool enable);
+void dispc_pck_free_enable(bool enable);
+void dispc_enable_fifohandcheck(bool enable);
+
+void dispc_set_lcd_size(u16 width, u16 height);
+void dispc_set_digit_size(u16 width, u16 height);
+u32 dispc_get_plane_fifo_size(enum omap_plane plane);
+void dispc_setup_plane_fifo(enum omap_plane plane, u32 low, u32 high);
+void dispc_enable_fifomerge(bool enable);
+void dispc_set_burst_size(enum omap_plane plane,
+ enum omap_burst_size burst_size);
+
+void dispc_set_plane_ba0(enum omap_plane plane, u32 paddr);
+void dispc_set_plane_ba1(enum omap_plane plane, u32 paddr);
+void dispc_set_plane_pos(enum omap_plane plane, u16 x, u16 y);
+void dispc_set_plane_size(enum omap_plane plane, u16 width, u16 height);
+void dispc_set_channel_out(enum omap_plane plane,
+ enum omap_channel channel_out);
+
+int dispc_setup_plane(enum omap_plane plane,
+ u32 paddr, u16 screen_width,
+ u16 pos_x, u16 pos_y,
+ u16 width, u16 height,
+ u16 out_width, u16 out_height,
+ enum omap_color_mode color_mode,
+ bool ilace,
+ enum omap_dss_rotation_type rotation_type,
+ u8 rotation, bool mirror,
+ u8 global_alpha);
+
+bool dispc_go_busy(enum omap_channel channel);
+void dispc_go(enum omap_channel channel);
+void dispc_enable_lcd_out(bool enable);
+void dispc_enable_digit_out(bool enable);
+int dispc_enable_plane(enum omap_plane plane, bool enable);
+void dispc_enable_replication(enum omap_plane plane, bool enable);
+
+void dispc_set_parallel_interface_mode(enum omap_parallel_interface_mode mode);
+void dispc_set_tft_data_lines(u8 data_lines);
+void dispc_set_lcd_display_type(enum omap_lcd_display_type type);
+void dispc_set_loadmode(enum omap_dss_load_mode mode);
+
+void dispc_set_default_color(enum omap_channel channel, u32 color);
+u32 dispc_get_default_color(enum omap_channel channel);
+void dispc_set_trans_key(enum omap_channel ch,
+ enum omap_dss_trans_key_type type,
+ u32 trans_key);
+void dispc_get_trans_key(enum omap_channel ch,
+ enum omap_dss_trans_key_type *type,
+ u32 *trans_key);
+void dispc_enable_trans_key(enum omap_channel ch, bool enable);
+void dispc_enable_alpha_blending(enum omap_channel ch, bool enable);
+bool dispc_trans_key_enabled(enum omap_channel ch);
+bool dispc_alpha_blending_enabled(enum omap_channel ch);
+
+bool dispc_lcd_timings_ok(struct omap_video_timings *timings);
+void dispc_set_lcd_timings(struct omap_video_timings *timings);
+unsigned long dispc_fclk_rate(void);
+unsigned long dispc_lclk_rate(void);
+unsigned long dispc_pclk_rate(void);
+void dispc_set_pol_freq(enum omap_panel_config config, u8 acbi, u8 acb);
+void dispc_find_clk_divs(bool is_tft, unsigned long req_pck, unsigned long fck,
+ struct dispc_clock_info *cinfo);
+int dispc_calc_clock_rates(unsigned long dispc_fclk_rate,
+ struct dispc_clock_info *cinfo);
+int dispc_set_clock_div(struct dispc_clock_info *cinfo);
+int dispc_get_clock_div(struct dispc_clock_info *cinfo);
+
+
+/* VENC */
+int venc_init(struct platform_device *pdev);
+void venc_exit(void);
+void venc_dump_regs(struct seq_file *s);
+int venc_init_display(struct omap_dss_device *display);
+
+/* RFBI */
+int rfbi_init(void);
+void rfbi_exit(void);
+void rfbi_dump_regs(struct seq_file *s);
+
+int rfbi_configure(int rfbi_module, int bpp, int lines);
+void rfbi_enable_rfbi(bool enable);
+void rfbi_transfer_area(u16 width, u16 height,
+ void (callback)(void *data), void *data);
+void rfbi_set_timings(int rfbi_module, struct rfbi_timings *t);
+unsigned long rfbi_get_max_tx_rate(void);
+int rfbi_init_display(struct omap_dss_device *display);
+
+#endif
--- /dev/null
+/*
+ * linux/drivers/video/omap2/dss/manager.c
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * Some code and ideas taken from drivers/video/omap/ driver
+ * by Imre Deak.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define DSS_SUBSYS_NAME "MANAGER"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
+#include <linux/jiffies.h>
+
+#include <plat/display.h>
+#include <plat/cpu.h>
+
+#include "dss.h"
+
+static int num_managers;
+static struct list_head manager_list;
+
+static ssize_t manager_name_show(struct omap_overlay_manager *mgr, char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%s\n", mgr->name);
+}
+
+static ssize_t manager_display_show(struct omap_overlay_manager *mgr, char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%s\n",
+ mgr->device ? mgr->device->name : "<none>");
+}
+
+static ssize_t manager_display_store(struct omap_overlay_manager *mgr,
+ const char *buf, size_t size)
+{
+ int r = 0;
+ size_t len = size;
+ struct omap_dss_device *dssdev = NULL;
+
+ int match(struct omap_dss_device *dssdev, void *data)
+ {
+ const char *str = data;
+ return sysfs_streq(dssdev->name, str);
+ }
+
+ if (buf[size-1] == '\n')
+ --len;
+
+ if (len > 0)
+ dssdev = omap_dss_find_device((void *)buf, match);
+
+ if (len > 0 && dssdev == NULL)
+ return -EINVAL;
+
+ if (dssdev)
+ DSSDBG("display %s found\n", dssdev->name);
+
+ if (mgr->device) {
+ r = mgr->unset_device(mgr);
+ if (r) {
+ DSSERR("failed to unset display\n");
+ goto put_device;
+ }
+ }
+
+ if (dssdev) {
+ r = mgr->set_device(mgr, dssdev);
+ if (r) {
+ DSSERR("failed to set manager\n");
+ goto put_device;
+ }
+
+ r = mgr->apply(mgr);
+ if (r) {
+ DSSERR("failed to apply dispc config\n");
+ goto put_device;
+ }
+ }
+
+put_device:
+ if (dssdev)
+ omap_dss_put_device(dssdev);
+
+ return r ? r : size;
+}
+
+static ssize_t manager_default_color_show(struct omap_overlay_manager *mgr,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.default_color);
+}
+
+static ssize_t manager_default_color_store(struct omap_overlay_manager *mgr,
+ const char *buf, size_t size)
+{
+ struct omap_overlay_manager_info info;
+ u32 color;
+ int r;
+
+ if (sscanf(buf, "%d", &color) != 1)
+ return -EINVAL;
+
+ mgr->get_manager_info(mgr, &info);
+
+ info.default_color = color;
+
+ r = mgr->set_manager_info(mgr, &info);
+ if (r)
+ return r;
+
+ r = mgr->apply(mgr);
+ if (r)
+ return r;
+
+ return size;
+}
+
+static const char *trans_key_type_str[] = {
+ "gfx-destination",
+ "video-source",
+};
+
+static ssize_t manager_trans_key_type_show(struct omap_overlay_manager *mgr,
+ char *buf)
+{
+ enum omap_dss_trans_key_type key_type;
+
+ key_type = mgr->info.trans_key_type;
+ BUG_ON(key_type >= ARRAY_SIZE(trans_key_type_str));
+
+ return snprintf(buf, PAGE_SIZE, "%s\n", trans_key_type_str[key_type]);
+}
+
+static ssize_t manager_trans_key_type_store(struct omap_overlay_manager *mgr,
+ const char *buf, size_t size)
+{
+ enum omap_dss_trans_key_type key_type;
+ struct omap_overlay_manager_info info;
+ int r;
+
+ for (key_type = OMAP_DSS_COLOR_KEY_GFX_DST;
+ key_type < ARRAY_SIZE(trans_key_type_str); key_type++) {
+ if (sysfs_streq(buf, trans_key_type_str[key_type]))
+ break;
+ }
+
+ if (key_type == ARRAY_SIZE(trans_key_type_str))
+ return -EINVAL;
+
+ mgr->get_manager_info(mgr, &info);
+
+ info.trans_key_type = key_type;
+
+ r = mgr->set_manager_info(mgr, &info);
+ if (r)
+ return r;
+
+ r = mgr->apply(mgr);
+ if (r)
+ return r;
+
+ return size;
+}
+
+static ssize_t manager_trans_key_value_show(struct omap_overlay_manager *mgr,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.trans_key);
+}
+
+static ssize_t manager_trans_key_value_store(struct omap_overlay_manager *mgr,
+ const char *buf, size_t size)
+{
+ struct omap_overlay_manager_info info;
+ u32 key_value;
+ int r;
+
+ if (sscanf(buf, "%d", &key_value) != 1)
+ return -EINVAL;
+
+ mgr->get_manager_info(mgr, &info);
+
+ info.trans_key = key_value;
+
+ r = mgr->set_manager_info(mgr, &info);
+ if (r)
+ return r;
+
+ r = mgr->apply(mgr);
+ if (r)
+ return r;
+
+ return size;
+}
+
+static ssize_t manager_trans_key_enabled_show(struct omap_overlay_manager *mgr,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.trans_enabled);
+}
+
+static ssize_t manager_trans_key_enabled_store(struct omap_overlay_manager *mgr,
+ const char *buf, size_t size)
+{
+ struct omap_overlay_manager_info info;
+ int enable;
+ int r;
+
+ if (sscanf(buf, "%d", &enable) != 1)
+ return -EINVAL;
+
+ mgr->get_manager_info(mgr, &info);
+
+ info.trans_enabled = enable ? true : false;
+
+ r = mgr->set_manager_info(mgr, &info);
+ if (r)
+ return r;
+
+ r = mgr->apply(mgr);
+ if (r)
+ return r;
+
+ return size;
+}
+
+static ssize_t manager_alpha_blending_enabled_show(
+ struct omap_overlay_manager *mgr, char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.alpha_enabled);
+}
+
+static ssize_t manager_alpha_blending_enabled_store(
+ struct omap_overlay_manager *mgr,
+ const char *buf, size_t size)
+{
+ struct omap_overlay_manager_info info;
+ int enable;
+ int r;
+
+ if (sscanf(buf, "%d", &enable) != 1)
+ return -EINVAL;
+
+ mgr->get_manager_info(mgr, &info);
+
+ info.alpha_enabled = enable ? true : false;
+
+ r = mgr->set_manager_info(mgr, &info);
+ if (r)
+ return r;
+
+ r = mgr->apply(mgr);
+ if (r)
+ return r;
+
+ return size;
+}
+
+struct manager_attribute {
+ struct attribute attr;
+ ssize_t (*show)(struct omap_overlay_manager *, char *);
+ ssize_t (*store)(struct omap_overlay_manager *, const char *, size_t);
+};
+
+#define MANAGER_ATTR(_name, _mode, _show, _store) \
+ struct manager_attribute manager_attr_##_name = \
+ __ATTR(_name, _mode, _show, _store)
+
+static MANAGER_ATTR(name, S_IRUGO, manager_name_show, NULL);
+static MANAGER_ATTR(display, S_IRUGO|S_IWUSR,
+ manager_display_show, manager_display_store);
+static MANAGER_ATTR(default_color, S_IRUGO|S_IWUSR,
+ manager_default_color_show, manager_default_color_store);
+static MANAGER_ATTR(trans_key_type, S_IRUGO|S_IWUSR,
+ manager_trans_key_type_show, manager_trans_key_type_store);
+static MANAGER_ATTR(trans_key_value, S_IRUGO|S_IWUSR,
+ manager_trans_key_value_show, manager_trans_key_value_store);
+static MANAGER_ATTR(trans_key_enabled, S_IRUGO|S_IWUSR,
+ manager_trans_key_enabled_show,
+ manager_trans_key_enabled_store);
+static MANAGER_ATTR(alpha_blending_enabled, S_IRUGO|S_IWUSR,
+ manager_alpha_blending_enabled_show,
+ manager_alpha_blending_enabled_store);
+
+
+static struct attribute *manager_sysfs_attrs[] = {
+ &manager_attr_name.attr,
+ &manager_attr_display.attr,
+ &manager_attr_default_color.attr,
+ &manager_attr_trans_key_type.attr,
+ &manager_attr_trans_key_value.attr,
+ &manager_attr_trans_key_enabled.attr,
+ &manager_attr_alpha_blending_enabled.attr,
+ NULL
+};
+
+static ssize_t manager_attr_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
+{
+ struct omap_overlay_manager *manager;
+ struct manager_attribute *manager_attr;
+
+ manager = container_of(kobj, struct omap_overlay_manager, kobj);
+ manager_attr = container_of(attr, struct manager_attribute, attr);
+
+ if (!manager_attr->show)
+ return -ENOENT;
+
+ return manager_attr->show(manager, buf);
+}
+
+static ssize_t manager_attr_store(struct kobject *kobj, struct attribute *attr,
+ const char *buf, size_t size)
+{
+ struct omap_overlay_manager *manager;
+ struct manager_attribute *manager_attr;
+
+ manager = container_of(kobj, struct omap_overlay_manager, kobj);
+ manager_attr = container_of(attr, struct manager_attribute, attr);
+
+ if (!manager_attr->store)
+ return -ENOENT;
+
+ return manager_attr->store(manager, buf, size);
+}
+
+static struct sysfs_ops manager_sysfs_ops = {
+ .show = manager_attr_show,
+ .store = manager_attr_store,
+};
+
+static struct kobj_type manager_ktype = {
+ .sysfs_ops = &manager_sysfs_ops,
+ .default_attrs = manager_sysfs_attrs,
+};
+
+/*
+ * We have 4 levels of cache for the dispc settings. First two are in SW and
+ * the latter two in HW.
+ *
+ * +--------------------+
+ * |overlay/manager_info|
+ * +--------------------+
+ * v
+ * apply()
+ * v
+ * +--------------------+
+ * | dss_cache |
+ * +--------------------+
+ * v
+ * configure()
+ * v
+ * +--------------------+
+ * | shadow registers |
+ * +--------------------+
+ * v
+ * VFP or lcd/digit_enable
+ * v
+ * +--------------------+
+ * | registers |
+ * +--------------------+
+ */
+
+struct overlay_cache_data {
+ /* If true, cache changed, but not written to shadow registers. Set
+ * in apply(), cleared when registers written. */
+ bool dirty;
+ /* If true, shadow registers contain changed values not yet in real
+ * registers. Set when writing to shadow registers, cleared at
+ * VSYNC/EVSYNC */
+ bool shadow_dirty;
+
+ bool enabled;
+
+ u32 paddr;
+ void __iomem *vaddr;
+ u16 screen_width;
+ u16 width;
+ u16 height;
+ enum omap_color_mode color_mode;
+ u8 rotation;
+ enum omap_dss_rotation_type rotation_type;
+ bool mirror;
+
+ u16 pos_x;
+ u16 pos_y;
+ u16 out_width; /* if 0, out_width == width */
+ u16 out_height; /* if 0, out_height == height */
+ u8 global_alpha;
+
+ enum omap_channel channel;
+ bool replication;
+ bool ilace;
+
+ enum omap_burst_size burst_size;
+ u32 fifo_low;
+ u32 fifo_high;
+
+ bool manual_update;
+};
+
+struct manager_cache_data {
+ /* If true, cache changed, but not written to shadow registers. Set
+ * in apply(), cleared when registers written. */
+ bool dirty;
+ /* If true, shadow registers contain changed values not yet in real
+ * registers. Set when writing to shadow registers, cleared at
+ * VSYNC/EVSYNC */
+ bool shadow_dirty;
+
+ u32 default_color;
+
+ enum omap_dss_trans_key_type trans_key_type;
+ u32 trans_key;
+ bool trans_enabled;
+
+ bool alpha_enabled;
+
+ bool manual_upd_display;
+ bool manual_update;
+ bool do_manual_update;
+
+ /* manual update region */
+ u16 x, y, w, h;
+};
+
+static struct {
+ spinlock_t lock;
+ struct overlay_cache_data overlay_cache[3];
+ struct manager_cache_data manager_cache[2];
+
+ bool irq_enabled;
+} dss_cache;
+
+
+
+static int omap_dss_set_device(struct omap_overlay_manager *mgr,
+ struct omap_dss_device *dssdev)
+{
+ int i;
+ int r;
+
+ if (dssdev->manager) {
+ DSSERR("display '%s' already has a manager '%s'\n",
+ dssdev->name, dssdev->manager->name);
+ return -EINVAL;
+ }
+
+ if ((mgr->supported_displays & dssdev->type) == 0) {
+ DSSERR("display '%s' does not support manager '%s'\n",
+ dssdev->name, mgr->name);
+ return -EINVAL;
+ }
+
+ for (i = 0; i < mgr->num_overlays; i++) {
+ struct omap_overlay *ovl = mgr->overlays[i];
+
+ if (ovl->manager != mgr || !ovl->info.enabled)
+ continue;
+
+ r = dss_check_overlay(ovl, dssdev);
+ if (r)
+ return r;
+ }
+
+ dssdev->manager = mgr;
+ mgr->device = dssdev;
+ mgr->device_changed = true;
+
+ return 0;
+}
+
+static int omap_dss_unset_device(struct omap_overlay_manager *mgr)
+{
+ if (!mgr->device) {
+ DSSERR("failed to unset display, display not set.\n");
+ return -EINVAL;
+ }
+
+ mgr->device->manager = NULL;
+ mgr->device = NULL;
+ mgr->device_changed = true;
+
+ return 0;
+}
+
+static int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
+{
+ unsigned long timeout = msecs_to_jiffies(500);
+ struct manager_cache_data *mc;
+ enum omap_channel channel;
+ u32 irq;
+ int r;
+ int i;
+
+ if (!mgr->device)
+ return 0;
+
+ if (mgr->device->type == OMAP_DISPLAY_TYPE_VENC) {
+ irq = DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN;
+ channel = OMAP_DSS_CHANNEL_DIGIT;
+ } else {
+ if (mgr->device->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
+ enum omap_dss_update_mode mode;
+ mode = mgr->device->get_update_mode(mgr->device);
+ if (mode != OMAP_DSS_UPDATE_AUTO)
+ return 0;
+
+ irq = DISPC_IRQ_FRAMEDONE;
+ } else {
+ irq = DISPC_IRQ_VSYNC;
+ }
+ channel = OMAP_DSS_CHANNEL_LCD;
+ }
+
+ mc = &dss_cache.manager_cache[mgr->id];
+ i = 0;
+ while (1) {
+ unsigned long flags;
+ bool shadow_dirty, dirty;
+
+ spin_lock_irqsave(&dss_cache.lock, flags);
+ dirty = mc->dirty;
+ shadow_dirty = mc->shadow_dirty;
+ spin_unlock_irqrestore(&dss_cache.lock, flags);
+
+ if (!dirty && !shadow_dirty) {
+ r = 0;
+ break;
+ }
+
+ /* 4 iterations is the worst case:
+ * 1 - initial iteration, dirty = true (between VFP and VSYNC)
+ * 2 - first VSYNC, dirty = true
+ * 3 - dirty = false, shadow_dirty = true
+ * 4 - shadow_dirty = false */
+ if (i++ == 3) {
+ DSSERR("mgr(%d)->wait_for_go() not finishing\n",
+ mgr->id);
+ r = 0;
+ break;
+ }
+
+ r = omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
+ if (r == -ERESTARTSYS)
+ break;
+
+ if (r) {
+ DSSERR("mgr(%d)->wait_for_go() timeout\n", mgr->id);
+ break;
+ }
+ }
+
+ return r;
+}
+
+int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl)
+{
+ unsigned long timeout = msecs_to_jiffies(500);
+ enum omap_channel channel;
+ struct overlay_cache_data *oc;
+ struct omap_dss_device *dssdev;
+ u32 irq;
+ int r;
+ int i;
+
+ if (!ovl->manager || !ovl->manager->device)
+ return 0;
+
+ dssdev = ovl->manager->device;
+
+ if (dssdev->type == OMAP_DISPLAY_TYPE_VENC) {
+ irq = DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN;
+ channel = OMAP_DSS_CHANNEL_DIGIT;
+ } else {
+ if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
+ enum omap_dss_update_mode mode;
+ mode = dssdev->get_update_mode(dssdev);
+ if (mode != OMAP_DSS_UPDATE_AUTO)
+ return 0;
+
+ irq = DISPC_IRQ_FRAMEDONE;
+ } else {
+ irq = DISPC_IRQ_VSYNC;
+ }
+ channel = OMAP_DSS_CHANNEL_LCD;
+ }
+
+ oc = &dss_cache.overlay_cache[ovl->id];
+ i = 0;
+ while (1) {
+ unsigned long flags;
+ bool shadow_dirty, dirty;
+
+ spin_lock_irqsave(&dss_cache.lock, flags);
+ dirty = oc->dirty;
+ shadow_dirty = oc->shadow_dirty;
+ spin_unlock_irqrestore(&dss_cache.lock, flags);
+
+ if (!dirty && !shadow_dirty) {
+ r = 0;
+ break;
+ }
+
+ /* 4 iterations is the worst case:
+ * 1 - initial iteration, dirty = true (between VFP and VSYNC)
+ * 2 - first VSYNC, dirty = true
+ * 3 - dirty = false, shadow_dirty = true
+ * 4 - shadow_dirty = false */
+ if (i++ == 3) {
+ DSSERR("ovl(%d)->wait_for_go() not finishing\n",
+ ovl->id);
+ r = 0;
+ break;
+ }
+
+ r = omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
+ if (r == -ERESTARTSYS)
+ break;
+
+ if (r) {
+ DSSERR("ovl(%d)->wait_for_go() timeout\n", ovl->id);
+ break;
+ }
+ }
+
+ return r;
+}
+
+static int overlay_enabled(struct omap_overlay *ovl)
+{
+ return ovl->info.enabled && ovl->manager && ovl->manager->device;
+}
+
+/* Is rect1 a subset of rect2? */
+static bool rectangle_subset(int x1, int y1, int w1, int h1,
+ int x2, int y2, int w2, int h2)
+{
+ if (x1 < x2 || y1 < y2)
+ return false;
+
+ if (x1 + w1 > x2 + w2)
+ return false;
+
+ if (y1 + h1 > y2 + h2)
+ return false;
+
+ return true;
+}
+
+/* Do rect1 and rect2 overlap? */
+static bool rectangle_intersects(int x1, int y1, int w1, int h1,
+ int x2, int y2, int w2, int h2)
+{
+ if (x1 >= x2 + w2)
+ return false;
+
+ if (x2 >= x1 + w1)
+ return false;
+
+ if (y1 >= y2 + h2)
+ return false;
+
+ if (y2 >= y1 + h1)
+ return false;
+
+ return true;
+}
+
+static bool dispc_is_overlay_scaled(struct overlay_cache_data *oc)
+{
+ if (oc->out_width != 0 && oc->width != oc->out_width)
+ return true;
+
+ if (oc->out_height != 0 && oc->height != oc->out_height)
+ return true;
+
+ return false;
+}
+
+static int configure_overlay(enum omap_plane plane)
+{
+ struct overlay_cache_data *c;
+ struct manager_cache_data *mc;
+ u16 outw, outh;
+ u16 x, y, w, h;
+ u32 paddr;
+ int r;
+
+ DSSDBGF("%d", plane);
+
+ c = &dss_cache.overlay_cache[plane];
+
+ if (!c->enabled) {
+ dispc_enable_plane(plane, 0);
+ return 0;
+ }
+
+ mc = &dss_cache.manager_cache[c->channel];
+
+ x = c->pos_x;
+ y = c->pos_y;
+ w = c->width;
+ h = c->height;
+ outw = c->out_width == 0 ? c->width : c->out_width;
+ outh = c->out_height == 0 ? c->height : c->out_height;
+ paddr = c->paddr;
+
+ if (c->manual_update && mc->do_manual_update) {
+ unsigned bpp;
+ /* If the overlay is outside the update region, disable it */
+ if (!rectangle_intersects(mc->x, mc->y, mc->w, mc->h,
+ x, y, outw, outh)) {
+ dispc_enable_plane(plane, 0);
+ return 0;
+ }
+
+ switch (c->color_mode) {
+ case OMAP_DSS_COLOR_RGB16:
+ case OMAP_DSS_COLOR_ARGB16:
+ case OMAP_DSS_COLOR_YUV2:
+ case OMAP_DSS_COLOR_UYVY:
+ bpp = 16;
+ break;
+
+ case OMAP_DSS_COLOR_RGB24P:
+ bpp = 24;
+ break;
+
+ case OMAP_DSS_COLOR_RGB24U:
+ case OMAP_DSS_COLOR_ARGB32:
+ case OMAP_DSS_COLOR_RGBA32:
+ case OMAP_DSS_COLOR_RGBX32:
+ bpp = 32;
+ break;
+
+ default:
+ BUG();
+ }
+
+ if (dispc_is_overlay_scaled(c)) {
+ /* If the overlay is scaled, the update area has
+ * already been enlarged to cover the whole overlay. We
+ * only need to adjust x/y here */
+ x = c->pos_x - mc->x;
+ y = c->pos_y - mc->y;
+ } else {
+ if (mc->x > c->pos_x) {
+ x = 0;
+ w -= (mc->x - c->pos_x);
+ paddr += (mc->x - c->pos_x) * bpp / 8;
+ } else {
+ x = c->pos_x - mc->x;
+ }
+
+ if (mc->y > c->pos_y) {
+ y = 0;
+ h -= (mc->y - c->pos_y);
+ paddr += (mc->y - c->pos_y) * c->screen_width *
+ bpp / 8;
+ } else {
+ y = c->pos_y - mc->y;
+ }
+
+ if (mc->w < (x+w))
+ w -= (x+w) - (mc->w);
+
+ if (mc->h < (y+h))
+ h -= (y+h) - (mc->h);
+
+ outw = w;
+ outh = h;
+ }
+ }
+
+ r = dispc_setup_plane(plane,
+ paddr,
+ c->screen_width,
+ x, y,
+ w, h,
+ outw, outh,
+ c->color_mode,
+ c->ilace,
+ c->rotation_type,
+ c->rotation,
+ c->mirror,
+ c->global_alpha);
+
+ if (r) {
+ /* this shouldn't happen */
+ DSSERR("dispc_setup_plane failed for ovl %d\n", plane);
+ dispc_enable_plane(plane, 0);
+ return r;
+ }
+
+ dispc_enable_replication(plane, c->replication);
+
+ dispc_set_burst_size(plane, c->burst_size);
+ dispc_setup_plane_fifo(plane, c->fifo_low, c->fifo_high);
+
+ dispc_enable_plane(plane, 1);
+
+ return 0;
+}
+
+static void configure_manager(enum omap_channel channel)
+{
+ struct manager_cache_data *c;
+
+ DSSDBGF("%d", channel);
+
+ c = &dss_cache.manager_cache[channel];
+
+ dispc_set_trans_key(channel, c->trans_key_type, c->trans_key);
+ dispc_enable_trans_key(channel, c->trans_enabled);
+ dispc_enable_alpha_blending(channel, c->alpha_enabled);
+}
+
+/* configure_dispc() tries to write values from cache to shadow registers.
+ * It writes only to those managers/overlays that are not busy.
+ * returns 0 if everything could be written to shadow registers.
+ * returns 1 if not everything could be written to shadow registers. */
+static int configure_dispc(void)
+{
+ struct overlay_cache_data *oc;
+ struct manager_cache_data *mc;
+ const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache);
+ const int num_mgrs = ARRAY_SIZE(dss_cache.manager_cache);
+ int i;
+ int r;
+ bool mgr_busy[2];
+ bool mgr_go[2];
+ bool busy;
+
+ r = 0;
+ busy = false;
+
+ mgr_busy[0] = dispc_go_busy(0);
+ mgr_busy[1] = dispc_go_busy(1);
+ mgr_go[0] = false;
+ mgr_go[1] = false;
+
+ /* Commit overlay settings */
+ for (i = 0; i < num_ovls; ++i) {
+ oc = &dss_cache.overlay_cache[i];
+ mc = &dss_cache.manager_cache[oc->channel];
+
+ if (!oc->dirty)
+ continue;
+
+ if (oc->manual_update && !mc->do_manual_update)
+ continue;
+
+ if (mgr_busy[oc->channel]) {
+ busy = true;
+ continue;
+ }
+
+ r = configure_overlay(i);
+ if (r)
+ DSSERR("configure_overlay %d failed\n", i);
+
+ oc->dirty = false;
+ oc->shadow_dirty = true;
+ mgr_go[oc->channel] = true;
+ }
+
+ /* Commit manager settings */
+ for (i = 0; i < num_mgrs; ++i) {
+ mc = &dss_cache.manager_cache[i];
+
+ if (!mc->dirty)
+ continue;
+
+ if (mc->manual_update && !mc->do_manual_update)
+ continue;
+
+ if (mgr_busy[i]) {
+ busy = true;
+ continue;
+ }
+
+ configure_manager(i);
+ mc->dirty = false;
+ mc->shadow_dirty = true;
+ mgr_go[i] = true;
+ }
+
+ /* set GO */
+ for (i = 0; i < num_mgrs; ++i) {
+ mc = &dss_cache.manager_cache[i];
+
+ if (!mgr_go[i])
+ continue;
+
+ /* We don't need GO with manual update display. LCD iface will
+ * always be turned off after frame, and new settings will be
+ * taken in to use at next update */
+ if (!mc->manual_upd_display)
+ dispc_go(i);
+ }
+
+ if (busy)
+ r = 1;
+ else
+ r = 0;
+
+ return r;
+}
+
+/* Configure dispc for partial update. Return possibly modified update
+ * area */
+void dss_setup_partial_planes(struct omap_dss_device *dssdev,
+ u16 *xi, u16 *yi, u16 *wi, u16 *hi)
+{
+ struct overlay_cache_data *oc;
+ struct manager_cache_data *mc;
+ const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache);
+ struct omap_overlay_manager *mgr;
+ int i;
+ u16 x, y, w, h;
+ unsigned long flags;
+
+ x = *xi;
+ y = *yi;
+ w = *wi;
+ h = *hi;
+
+ DSSDBG("dispc_setup_partial_planes %d,%d %dx%d\n",
+ *xi, *yi, *wi, *hi);
+
+ mgr = dssdev->manager;
+
+ if (!mgr) {
+ DSSDBG("no manager\n");
+ return;
+ }
+
+ spin_lock_irqsave(&dss_cache.lock, flags);
+
+ /* We need to show the whole overlay if it is scaled. So look for
+ * those, and make the update area larger if found.
+ * Also mark the overlay cache dirty */
+ for (i = 0; i < num_ovls; ++i) {
+ unsigned x1, y1, x2, y2;
+ unsigned outw, outh;
+
+ oc = &dss_cache.overlay_cache[i];
+
+ if (oc->channel != mgr->id)
+ continue;
+
+ oc->dirty = true;
+
+ if (!oc->enabled)
+ continue;
+
+ if (!dispc_is_overlay_scaled(oc))
+ continue;
+
+ outw = oc->out_width == 0 ? oc->width : oc->out_width;
+ outh = oc->out_height == 0 ? oc->height : oc->out_height;
+
+ /* is the overlay outside the update region? */
+ if (!rectangle_intersects(x, y, w, h,
+ oc->pos_x, oc->pos_y,
+ outw, outh))
+ continue;
+
+ /* if the overlay totally inside the update region? */
+ if (rectangle_subset(oc->pos_x, oc->pos_y, outw, outh,
+ x, y, w, h))
+ continue;
+
+ if (x > oc->pos_x)
+ x1 = oc->pos_x;
+ else
+ x1 = x;
+
+ if (y > oc->pos_y)
+ y1 = oc->pos_y;
+ else
+ y1 = y;
+
+ if ((x + w) < (oc->pos_x + outw))
+ x2 = oc->pos_x + outw;
+ else
+ x2 = x + w;
+
+ if ((y + h) < (oc->pos_y + outh))
+ y2 = oc->pos_y + outh;
+ else
+ y2 = y + h;
+
+ x = x1;
+ y = y1;
+ w = x2 - x1;
+ h = y2 - y1;
+
+ DSSDBG("changing upd area due to ovl(%d) scaling %d,%d %dx%d\n",
+ i, x, y, w, h);
+ }
+
+ mc = &dss_cache.manager_cache[mgr->id];
+ mc->do_manual_update = true;
+ mc->x = x;
+ mc->y = y;
+ mc->w = w;
+ mc->h = h;
+
+ configure_dispc();
+
+ mc->do_manual_update = false;
+
+ spin_unlock_irqrestore(&dss_cache.lock, flags);
+
+ *xi = x;
+ *yi = y;
+ *wi = w;
+ *hi = h;
+}
+
+void dss_start_update(struct omap_dss_device *dssdev)
+{
+ struct manager_cache_data *mc;
+ struct overlay_cache_data *oc;
+ const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache);
+ const int num_mgrs = ARRAY_SIZE(dss_cache.manager_cache);
+ struct omap_overlay_manager *mgr;
+ int i;
+
+ mgr = dssdev->manager;
+
+ for (i = 0; i < num_ovls; ++i) {
+ oc = &dss_cache.overlay_cache[i];
+ if (oc->channel != mgr->id)
+ continue;
+
+ oc->shadow_dirty = false;
+ }
+
+ for (i = 0; i < num_mgrs; ++i) {
+ mc = &dss_cache.manager_cache[i];
+ if (mgr->id != i)
+ continue;
+
+ mc->shadow_dirty = false;
+ }
+
+ dispc_enable_lcd_out(1);
+}
+
+static void dss_apply_irq_handler(void *data, u32 mask)
+{
+ struct manager_cache_data *mc;
+ struct overlay_cache_data *oc;
+ const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache);
+ const int num_mgrs = ARRAY_SIZE(dss_cache.manager_cache);
+ int i, r;
+ bool mgr_busy[2];
+
+ mgr_busy[0] = dispc_go_busy(0);
+ mgr_busy[1] = dispc_go_busy(1);
+
+ spin_lock(&dss_cache.lock);
+
+ for (i = 0; i < num_ovls; ++i) {
+ oc = &dss_cache.overlay_cache[i];
+ if (!mgr_busy[oc->channel])
+ oc->shadow_dirty = false;
+ }
+
+ for (i = 0; i < num_mgrs; ++i) {
+ mc = &dss_cache.manager_cache[i];
+ if (!mgr_busy[i])
+ mc->shadow_dirty = false;
+ }
+
+ r = configure_dispc();
+ if (r == 1)
+ goto end;
+
+ /* re-read busy flags */
+ mgr_busy[0] = dispc_go_busy(0);
+ mgr_busy[1] = dispc_go_busy(1);
+
+ /* keep running as long as there are busy managers, so that
+ * we can collect overlay-applied information */
+ for (i = 0; i < num_mgrs; ++i) {
+ if (mgr_busy[i])
+ goto end;
+ }
+
+ omap_dispc_unregister_isr(dss_apply_irq_handler, NULL,
+ DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_ODD |
+ DISPC_IRQ_EVSYNC_EVEN);
+ dss_cache.irq_enabled = false;
+
+end:
+ spin_unlock(&dss_cache.lock);
+}
+
+static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
+{
+ struct overlay_cache_data *oc;
+ struct manager_cache_data *mc;
+ int i;
+ struct omap_overlay *ovl;
+ int num_planes_enabled = 0;
+ bool use_fifomerge;
+ unsigned long flags;
+ int r;
+
+ DSSDBG("omap_dss_mgr_apply(%s)\n", mgr->name);
+
+ spin_lock_irqsave(&dss_cache.lock, flags);
+
+ /* Configure overlays */
+ for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
+ struct omap_dss_device *dssdev;
+
+ ovl = omap_dss_get_overlay(i);
+
+ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
+ continue;
+
+ oc = &dss_cache.overlay_cache[ovl->id];
+
+ if (!overlay_enabled(ovl)) {
+ if (oc->enabled) {
+ oc->enabled = false;
+ oc->dirty = true;
+ }
+ continue;
+ }
+
+ if (!ovl->info_dirty) {
+ if (oc->enabled)
+ ++num_planes_enabled;
+ continue;
+ }
+
+ dssdev = ovl->manager->device;
+
+ if (dss_check_overlay(ovl, dssdev)) {
+ if (oc->enabled) {
+ oc->enabled = false;
+ oc->dirty = true;
+ }
+ continue;
+ }
+
+ ovl->info_dirty = false;
+ oc->dirty = true;
+
+ oc->paddr = ovl->info.paddr;
+ oc->vaddr = ovl->info.vaddr;
+ oc->screen_width = ovl->info.screen_width;
+ oc->width = ovl->info.width;
+ oc->height = ovl->info.height;
+ oc->color_mode = ovl->info.color_mode;
+ oc->rotation = ovl->info.rotation;
+ oc->rotation_type = ovl->info.rotation_type;
+ oc->mirror = ovl->info.mirror;
+ oc->pos_x = ovl->info.pos_x;
+ oc->pos_y = ovl->info.pos_y;
+ oc->out_width = ovl->info.out_width;
+ oc->out_height = ovl->info.out_height;
+ oc->global_alpha = ovl->info.global_alpha;
+
+ oc->replication =
+ dss_use_replication(dssdev, ovl->info.color_mode);
+
+ oc->ilace = dssdev->type == OMAP_DISPLAY_TYPE_VENC;
+
+ oc->channel = ovl->manager->id;
+
+ oc->enabled = true;
+
+ oc->manual_update =
+ dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE &&
+ dssdev->get_update_mode(dssdev) != OMAP_DSS_UPDATE_AUTO;
+
+ ++num_planes_enabled;
+ }
+
+ /* Configure managers */
+ list_for_each_entry(mgr, &manager_list, list) {
+ struct omap_dss_device *dssdev;
+
+ if (!(mgr->caps & OMAP_DSS_OVL_MGR_CAP_DISPC))
+ continue;
+
+ mc = &dss_cache.manager_cache[mgr->id];
+
+ if (mgr->device_changed) {
+ mgr->device_changed = false;
+ mgr->info_dirty = true;
+ }
+
+ if (!mgr->info_dirty)
+ continue;
+
+ if (!mgr->device)
+ continue;
+
+ dssdev = mgr->device;
+
+ mgr->info_dirty = false;
+ mc->dirty = true;
+
+ mc->default_color = mgr->info.default_color;
+ mc->trans_key_type = mgr->info.trans_key_type;
+ mc->trans_key = mgr->info.trans_key;
+ mc->trans_enabled = mgr->info.trans_enabled;
+ mc->alpha_enabled = mgr->info.alpha_enabled;
+
+ mc->manual_upd_display =
+ dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE;
+
+ mc->manual_update =
+ dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE &&
+ dssdev->get_update_mode(dssdev) != OMAP_DSS_UPDATE_AUTO;
+ }
+
+ /* XXX TODO: Try to get fifomerge working. The problem is that it
+ * affects both managers, not individually but at the same time. This
+ * means the change has to be well synchronized. I guess the proper way
+ * is to have a two step process for fifo merge:
+ * fifomerge enable:
+ * 1. disable other planes, leaving one plane enabled
+ * 2. wait until the planes are disabled on HW
+ * 3. config merged fifo thresholds, enable fifomerge
+ * fifomerge disable:
+ * 1. config unmerged fifo thresholds, disable fifomerge
+ * 2. wait until fifo changes are in HW
+ * 3. enable planes
+ */
+ use_fifomerge = false;
+
+ /* Configure overlay fifos */
+ for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
+ struct omap_dss_device *dssdev;
+ u32 size;
+
+ ovl = omap_dss_get_overlay(i);
+
+ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
+ continue;
+
+ oc = &dss_cache.overlay_cache[ovl->id];
+
+ if (!oc->enabled)
+ continue;
+
+ dssdev = ovl->manager->device;
+
+ size = dispc_get_plane_fifo_size(ovl->id);
+ if (use_fifomerge)
+ size *= 3;
+
+ switch (dssdev->type) {
+ case OMAP_DISPLAY_TYPE_DPI:
+ case OMAP_DISPLAY_TYPE_DBI:
+ case OMAP_DISPLAY_TYPE_SDI:
+ case OMAP_DISPLAY_TYPE_VENC:
+ default_get_overlay_fifo_thresholds(ovl->id, size,
+ &oc->burst_size, &oc->fifo_low,
+ &oc->fifo_high);
+ break;
+#ifdef CONFIG_OMAP2_DSS_DSI
+ case OMAP_DISPLAY_TYPE_DSI:
+ dsi_get_overlay_fifo_thresholds(ovl->id, size,
+ &oc->burst_size, &oc->fifo_low,
+ &oc->fifo_high);
+ break;
+#endif
+ default:
+ BUG();
+ }
+ }
+
+ r = 0;
+ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
+ if (!dss_cache.irq_enabled) {
+ r = omap_dispc_register_isr(dss_apply_irq_handler, NULL,
+ DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_ODD |
+ DISPC_IRQ_EVSYNC_EVEN);
+ dss_cache.irq_enabled = true;
+ }
+ configure_dispc();
+ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
+
+ spin_unlock_irqrestore(&dss_cache.lock, flags);
+
+ return r;
+}
+
+static int dss_check_manager(struct omap_overlay_manager *mgr)
+{
+ /* OMAP supports only graphics source transparency color key and alpha
+ * blending simultaneously. See TRM 15.4.2.4.2.2 Alpha Mode */
+
+ if (mgr->info.alpha_enabled && mgr->info.trans_enabled &&
+ mgr->info.trans_key_type != OMAP_DSS_COLOR_KEY_GFX_DST)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int omap_dss_mgr_set_info(struct omap_overlay_manager *mgr,
+ struct omap_overlay_manager_info *info)
+{
+ int r;
+ struct omap_overlay_manager_info old_info;
+
+ old_info = mgr->info;
+ mgr->info = *info;
+
+ r = dss_check_manager(mgr);
+ if (r) {
+ mgr->info = old_info;
+ return r;
+ }
+
+ mgr->info_dirty = true;
+
+ return 0;
+}
+
+static void omap_dss_mgr_get_info(struct omap_overlay_manager *mgr,
+ struct omap_overlay_manager_info *info)
+{
+ *info = mgr->info;
+}
+
+static void omap_dss_add_overlay_manager(struct omap_overlay_manager *manager)
+{
+ ++num_managers;
+ list_add_tail(&manager->list, &manager_list);
+}
+
+int dss_init_overlay_managers(struct platform_device *pdev)
+{
+ int i, r;
+
+ spin_lock_init(&dss_cache.lock);
+
+ INIT_LIST_HEAD(&manager_list);
+
+ num_managers = 0;
+
+ for (i = 0; i < 2; ++i) {
+ struct omap_overlay_manager *mgr;
+ mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
+
+ BUG_ON(mgr == NULL);
+
+ switch (i) {
+ case 0:
+ mgr->name = "lcd";
+ mgr->id = OMAP_DSS_CHANNEL_LCD;
+ mgr->supported_displays =
+ OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI |
+ OMAP_DISPLAY_TYPE_SDI | OMAP_DISPLAY_TYPE_DSI;
+ break;
+ case 1:
+ mgr->name = "tv";
+ mgr->id = OMAP_DSS_CHANNEL_DIGIT;
+ mgr->supported_displays = OMAP_DISPLAY_TYPE_VENC;
+ break;
+ }
+
+ mgr->set_device = &omap_dss_set_device;
+ mgr->unset_device = &omap_dss_unset_device;
+ mgr->apply = &omap_dss_mgr_apply;
+ mgr->set_manager_info = &omap_dss_mgr_set_info;
+ mgr->get_manager_info = &omap_dss_mgr_get_info;
+ mgr->wait_for_go = &dss_mgr_wait_for_go;
+
+ mgr->caps = OMAP_DSS_OVL_MGR_CAP_DISPC;
+
+ dss_overlay_setup_dispc_manager(mgr);
+
+ omap_dss_add_overlay_manager(mgr);
+
+ r = kobject_init_and_add(&mgr->kobj, &manager_ktype,
+ &pdev->dev.kobj, "manager%d", i);
+
+ if (r) {
+ DSSERR("failed to create sysfs file\n");
+ continue;
+ }
+ }
+
+#ifdef L4_EXAMPLE
+ {
+ int omap_dss_mgr_apply_l4(struct omap_overlay_manager *mgr)
+ {
+ DSSDBG("omap_dss_mgr_apply_l4(%s)\n", mgr->name);
+
+ return 0;
+ }
+
+ struct omap_overlay_manager *mgr;
+ mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
+
+ BUG_ON(mgr == NULL);
+
+ mgr->name = "l4";
+ mgr->supported_displays =
+ OMAP_DISPLAY_TYPE_DBI | OMAP_DISPLAY_TYPE_DSI;
+
+ mgr->set_device = &omap_dss_set_device;
+ mgr->unset_device = &omap_dss_unset_device;
+ mgr->apply = &omap_dss_mgr_apply_l4;
+ mgr->set_manager_info = &omap_dss_mgr_set_info;
+ mgr->get_manager_info = &omap_dss_mgr_get_info;
+
+ dss_overlay_setup_l4_manager(mgr);
+
+ omap_dss_add_overlay_manager(mgr);
+
+ r = kobject_init_and_add(&mgr->kobj, &manager_ktype,
+ &pdev->dev.kobj, "managerl4");
+
+ if (r)
+ DSSERR("failed to create sysfs file\n");
+ }
+#endif
+
+ return 0;
+}
+
+void dss_uninit_overlay_managers(struct platform_device *pdev)
+{
+ struct omap_overlay_manager *mgr;
+
+ while (!list_empty(&manager_list)) {
+ mgr = list_first_entry(&manager_list,
+ struct omap_overlay_manager, list);
+ list_del(&mgr->list);
+ kobject_del(&mgr->kobj);
+ kobject_put(&mgr->kobj);
+ kfree(mgr);
+ }
+
+ num_managers = 0;
+}
+
+int omap_dss_get_num_overlay_managers(void)
+{
+ return num_managers;
+}
+EXPORT_SYMBOL(omap_dss_get_num_overlay_managers);
+
+struct omap_overlay_manager *omap_dss_get_overlay_manager(int num)
+{
+ int i = 0;
+ struct omap_overlay_manager *mgr;
+
+ list_for_each_entry(mgr, &manager_list, list) {
+ if (i++ == num)
+ return mgr;
+ }
+
+ return NULL;
+}
+EXPORT_SYMBOL(omap_dss_get_overlay_manager);
+
--- /dev/null
+/*
+ * linux/drivers/video/omap2/dss/overlay.c
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * Some code and ideas taken from drivers/video/omap/ driver
+ * by Imre Deak.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define DSS_SUBSYS_NAME "OVERLAY"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/sysfs.h>
+#include <linux/kobject.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+
+#include <plat/display.h>
+#include <plat/cpu.h>
+
+#include "dss.h"
+
+static int num_overlays;
+static struct list_head overlay_list;
+
+static ssize_t overlay_name_show(struct omap_overlay *ovl, char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%s\n", ovl->name);
+}
+
+static ssize_t overlay_manager_show(struct omap_overlay *ovl, char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%s\n",
+ ovl->manager ? ovl->manager->name : "<none>");
+}
+
+static ssize_t overlay_manager_store(struct omap_overlay *ovl, const char *buf,
+ size_t size)
+{
+ int i, r;
+ struct omap_overlay_manager *mgr = NULL;
+ struct omap_overlay_manager *old_mgr;
+ int len = size;
+
+ if (buf[size-1] == '\n')
+ --len;
+
+ if (len > 0) {
+ for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
+ mgr = omap_dss_get_overlay_manager(i);
+
+ if (strncmp(buf, mgr->name, len) == 0)
+ break;
+
+ mgr = NULL;
+ }
+ }
+
+ if (len > 0 && mgr == NULL)
+ return -EINVAL;
+
+ if (mgr)
+ DSSDBG("manager %s found\n", mgr->name);
+
+ if (mgr == ovl->manager)
+ return size;
+
+ old_mgr = ovl->manager;
+
+ /* detach old manager */
+ if (old_mgr) {
+ r = ovl->unset_manager(ovl);
+ if (r) {
+ DSSERR("detach failed\n");
+ return r;
+ }
+
+ r = old_mgr->apply(old_mgr);
+ if (r)
+ return r;
+ }
+
+ if (mgr) {
+ r = ovl->set_manager(ovl, mgr);
+ if (r) {
+ DSSERR("Failed to attach overlay\n");
+ return r;
+ }
+
+ r = mgr->apply(mgr);
+ if (r)
+ return r;
+ }
+
+ return size;
+}
+
+static ssize_t overlay_input_size_show(struct omap_overlay *ovl, char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d,%d\n",
+ ovl->info.width, ovl->info.height);
+}
+
+static ssize_t overlay_screen_width_show(struct omap_overlay *ovl, char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d\n", ovl->info.screen_width);
+}
+
+static ssize_t overlay_position_show(struct omap_overlay *ovl, char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d,%d\n",
+ ovl->info.pos_x, ovl->info.pos_y);
+}
+
+static ssize_t overlay_position_store(struct omap_overlay *ovl,
+ const char *buf, size_t size)
+{
+ int r;
+ char *last;
+ struct omap_overlay_info info;
+
+ ovl->get_overlay_info(ovl, &info);
+
+ info.pos_x = simple_strtoul(buf, &last, 10);
+ ++last;
+ if (last - buf >= size)
+ return -EINVAL;
+
+ info.pos_y = simple_strtoul(last, &last, 10);
+
+ r = ovl->set_overlay_info(ovl, &info);
+ if (r)
+ return r;
+
+ if (ovl->manager) {
+ r = ovl->manager->apply(ovl->manager);
+ if (r)
+ return r;
+ }
+
+ return size;
+}
+
+static ssize_t overlay_output_size_show(struct omap_overlay *ovl, char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d,%d\n",
+ ovl->info.out_width, ovl->info.out_height);
+}
+
+static ssize_t overlay_output_size_store(struct omap_overlay *ovl,
+ const char *buf, size_t size)
+{
+ int r;
+ char *last;
+ struct omap_overlay_info info;
+
+ ovl->get_overlay_info(ovl, &info);
+
+ info.out_width = simple_strtoul(buf, &last, 10);
+ ++last;
+ if (last - buf >= size)
+ return -EINVAL;
+
+ info.out_height = simple_strtoul(last, &last, 10);
+
+ r = ovl->set_overlay_info(ovl, &info);
+ if (r)
+ return r;
+
+ if (ovl->manager) {
+ r = ovl->manager->apply(ovl->manager);
+ if (r)
+ return r;
+ }
+
+ return size;
+}
+
+static ssize_t overlay_enabled_show(struct omap_overlay *ovl, char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d\n", ovl->info.enabled);
+}
+
+static ssize_t overlay_enabled_store(struct omap_overlay *ovl, const char *buf,
+ size_t size)
+{
+ int r;
+ struct omap_overlay_info info;
+
+ ovl->get_overlay_info(ovl, &info);
+
+ info.enabled = simple_strtoul(buf, NULL, 10);
+
+ r = ovl->set_overlay_info(ovl, &info);
+ if (r)
+ return r;
+
+ if (ovl->manager) {
+ r = ovl->manager->apply(ovl->manager);
+ if (r)
+ return r;
+ }
+
+ return size;
+}
+
+static ssize_t overlay_global_alpha_show(struct omap_overlay *ovl, char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d\n",
+ ovl->info.global_alpha);
+}
+
+static ssize_t overlay_global_alpha_store(struct omap_overlay *ovl,
+ const char *buf, size_t size)
+{
+ int r;
+ struct omap_overlay_info info;
+
+ ovl->get_overlay_info(ovl, &info);
+
+ /* Video1 plane does not support global alpha
+ * to always make it 255 completely opaque
+ */
+ if (ovl->id == OMAP_DSS_VIDEO1)
+ info.global_alpha = 255;
+ else
+ info.global_alpha = simple_strtoul(buf, NULL, 10);
+
+ r = ovl->set_overlay_info(ovl, &info);
+ if (r)
+ return r;
+
+ if (ovl->manager) {
+ r = ovl->manager->apply(ovl->manager);
+ if (r)
+ return r;
+ }
+
+ return size;
+}
+
+struct overlay_attribute {
+ struct attribute attr;
+ ssize_t (*show)(struct omap_overlay *, char *);
+ ssize_t (*store)(struct omap_overlay *, const char *, size_t);
+};
+
+#define OVERLAY_ATTR(_name, _mode, _show, _store) \
+ struct overlay_attribute overlay_attr_##_name = \
+ __ATTR(_name, _mode, _show, _store)
+
+static OVERLAY_ATTR(name, S_IRUGO, overlay_name_show, NULL);
+static OVERLAY_ATTR(manager, S_IRUGO|S_IWUSR,
+ overlay_manager_show, overlay_manager_store);
+static OVERLAY_ATTR(input_size, S_IRUGO, overlay_input_size_show, NULL);
+static OVERLAY_ATTR(screen_width, S_IRUGO, overlay_screen_width_show, NULL);
+static OVERLAY_ATTR(position, S_IRUGO|S_IWUSR,
+ overlay_position_show, overlay_position_store);
+static OVERLAY_ATTR(output_size, S_IRUGO|S_IWUSR,
+ overlay_output_size_show, overlay_output_size_store);
+static OVERLAY_ATTR(enabled, S_IRUGO|S_IWUSR,
+ overlay_enabled_show, overlay_enabled_store);
+static OVERLAY_ATTR(global_alpha, S_IRUGO|S_IWUSR,
+ overlay_global_alpha_show, overlay_global_alpha_store);
+
+static struct attribute *overlay_sysfs_attrs[] = {
+ &overlay_attr_name.attr,
+ &overlay_attr_manager.attr,
+ &overlay_attr_input_size.attr,
+ &overlay_attr_screen_width.attr,
+ &overlay_attr_position.attr,
+ &overlay_attr_output_size.attr,
+ &overlay_attr_enabled.attr,
+ &overlay_attr_global_alpha.attr,
+ NULL
+};
+
+static ssize_t overlay_attr_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
+{
+ struct omap_overlay *overlay;
+ struct overlay_attribute *overlay_attr;
+
+ overlay = container_of(kobj, struct omap_overlay, kobj);
+ overlay_attr = container_of(attr, struct overlay_attribute, attr);
+
+ if (!overlay_attr->show)
+ return -ENOENT;
+
+ return overlay_attr->show(overlay, buf);
+}
+
+static ssize_t overlay_attr_store(struct kobject *kobj, struct attribute *attr,
+ const char *buf, size_t size)
+{
+ struct omap_overlay *overlay;
+ struct overlay_attribute *overlay_attr;
+
+ overlay = container_of(kobj, struct omap_overlay, kobj);
+ overlay_attr = container_of(attr, struct overlay_attribute, attr);
+
+ if (!overlay_attr->store)
+ return -ENOENT;
+
+ return overlay_attr->store(overlay, buf, size);
+}
+
+static struct sysfs_ops overlay_sysfs_ops = {
+ .show = overlay_attr_show,
+ .store = overlay_attr_store,
+};
+
+static struct kobj_type overlay_ktype = {
+ .sysfs_ops = &overlay_sysfs_ops,
+ .default_attrs = overlay_sysfs_attrs,
+};
+
+/* Check if overlay parameters are compatible with display */
+int dss_check_overlay(struct omap_overlay *ovl, struct omap_dss_device *dssdev)
+{
+ struct omap_overlay_info *info;
+ u16 outw, outh;
+ u16 dw, dh;
+
+ if (!dssdev)
+ return 0;
+
+ if (!ovl->info.enabled)
+ return 0;
+
+ info = &ovl->info;
+
+ if (info->paddr == 0) {
+ DSSDBG("check_overlay failed: paddr 0\n");
+ return -EINVAL;
+ }
+
+ dssdev->get_resolution(dssdev, &dw, &dh);
+
+ DSSDBG("check_overlay %d: (%d,%d %dx%d -> %dx%d) disp (%dx%d)\n",
+ ovl->id,
+ info->pos_x, info->pos_y,
+ info->width, info->height,
+ info->out_width, info->out_height,
+ dw, dh);
+
+ if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) {
+ outw = info->width;
+ outh = info->height;
+ } else {
+ if (info->out_width == 0)
+ outw = info->width;
+ else
+ outw = info->out_width;
+
+ if (info->out_height == 0)
+ outh = info->height;
+ else
+ outh = info->out_height;
+ }
+
+ if (dw < info->pos_x + outw) {
+ DSSDBG("check_overlay failed 1: %d < %d + %d\n",
+ dw, info->pos_x, outw);
+ return -EINVAL;
+ }
+
+ if (dh < info->pos_y + outh) {
+ DSSDBG("check_overlay failed 2: %d < %d + %d\n",
+ dh, info->pos_y, outh);
+ return -EINVAL;
+ }
+
+ if ((ovl->supported_modes & info->color_mode) == 0) {
+ DSSERR("overlay doesn't support mode %d\n", info->color_mode);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int dss_ovl_set_overlay_info(struct omap_overlay *ovl,
+ struct omap_overlay_info *info)
+{
+ int r;
+ struct omap_overlay_info old_info;
+
+ old_info = ovl->info;
+ ovl->info = *info;
+
+ if (ovl->manager) {
+ r = dss_check_overlay(ovl, ovl->manager->device);
+ if (r) {
+ ovl->info = old_info;
+ return r;
+ }
+ }
+
+ ovl->info_dirty = true;
+
+ return 0;
+}
+
+static void dss_ovl_get_overlay_info(struct omap_overlay *ovl,
+ struct omap_overlay_info *info)
+{
+ *info = ovl->info;
+}
+
+static int dss_ovl_wait_for_go(struct omap_overlay *ovl)
+{
+ return dss_mgr_wait_for_go_ovl(ovl);
+}
+
+static int omap_dss_set_manager(struct omap_overlay *ovl,
+ struct omap_overlay_manager *mgr)
+{
+ if (!mgr)
+ return -EINVAL;
+
+ if (ovl->manager) {
+ DSSERR("overlay '%s' already has a manager '%s'\n",
+ ovl->name, ovl->manager->name);
+ return -EINVAL;
+ }
+
+ if (ovl->info.enabled) {
+ DSSERR("overlay has to be disabled to change the manager\n");
+ return -EINVAL;
+ }
+
+ ovl->manager = mgr;
+
+ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
+ /* XXX: on manual update display, in auto update mode, a bug happens
+ * here. When an overlay is first enabled on LCD, then it's disabled,
+ * and the manager is changed to TV, we sometimes get SYNC_LOST_DIGIT
+ * errors. Waiting before changing the channel_out fixes it. I'm
+ * guessing that the overlay is still somehow being used for the LCD,
+ * but I don't understand how or why. */
+ msleep(40);
+ dispc_set_channel_out(ovl->id, mgr->id);
+ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
+
+ return 0;
+}
+
+static int omap_dss_unset_manager(struct omap_overlay *ovl)
+{
+ int r;
+
+ if (!ovl->manager) {
+ DSSERR("failed to detach overlay: manager not set\n");
+ return -EINVAL;
+ }
+
+ if (ovl->info.enabled) {
+ DSSERR("overlay has to be disabled to unset the manager\n");
+ return -EINVAL;
+ }
+
+ r = ovl->wait_for_go(ovl);
+ if (r)
+ return r;
+
+ ovl->manager = NULL;
+
+ return 0;
+}
+
+int omap_dss_get_num_overlays(void)
+{
+ return num_overlays;
+}
+EXPORT_SYMBOL(omap_dss_get_num_overlays);
+
+struct omap_overlay *omap_dss_get_overlay(int num)
+{
+ int i = 0;
+ struct omap_overlay *ovl;
+
+ list_for_each_entry(ovl, &overlay_list, list) {
+ if (i++ == num)
+ return ovl;
+ }
+
+ return NULL;
+}
+EXPORT_SYMBOL(omap_dss_get_overlay);
+
+static void omap_dss_add_overlay(struct omap_overlay *overlay)
+{
+ ++num_overlays;
+ list_add_tail(&overlay->list, &overlay_list);
+}
+
+static struct omap_overlay *dispc_overlays[3];
+
+void dss_overlay_setup_dispc_manager(struct omap_overlay_manager *mgr)
+{
+ mgr->num_overlays = 3;
+ mgr->overlays = dispc_overlays;
+}
+
+#ifdef L4_EXAMPLE
+static struct omap_overlay *l4_overlays[1];
+void dss_overlay_setup_l4_manager(struct omap_overlay_manager *mgr)
+{
+ mgr->num_overlays = 1;
+ mgr->overlays = l4_overlays;
+}
+#endif
+
+void dss_init_overlays(struct platform_device *pdev)
+{
+ int i, r;
+
+ INIT_LIST_HEAD(&overlay_list);
+
+ num_overlays = 0;
+
+ for (i = 0; i < 3; ++i) {
+ struct omap_overlay *ovl;
+ ovl = kzalloc(sizeof(*ovl), GFP_KERNEL);
+
+ BUG_ON(ovl == NULL);
+
+ switch (i) {
+ case 0:
+ ovl->name = "gfx";
+ ovl->id = OMAP_DSS_GFX;
+ ovl->supported_modes = cpu_is_omap34xx() ?
+ OMAP_DSS_COLOR_GFX_OMAP3 :
+ OMAP_DSS_COLOR_GFX_OMAP2;
+ ovl->caps = OMAP_DSS_OVL_CAP_DISPC;
+ ovl->info.global_alpha = 255;
+ break;
+ case 1:
+ ovl->name = "vid1";
+ ovl->id = OMAP_DSS_VIDEO1;
+ ovl->supported_modes = cpu_is_omap34xx() ?
+ OMAP_DSS_COLOR_VID1_OMAP3 :
+ OMAP_DSS_COLOR_VID_OMAP2;
+ ovl->caps = OMAP_DSS_OVL_CAP_SCALE |
+ OMAP_DSS_OVL_CAP_DISPC;
+ ovl->info.global_alpha = 255;
+ break;
+ case 2:
+ ovl->name = "vid2";
+ ovl->id = OMAP_DSS_VIDEO2;
+ ovl->supported_modes = cpu_is_omap34xx() ?
+ OMAP_DSS_COLOR_VID2_OMAP3 :
+ OMAP_DSS_COLOR_VID_OMAP2;
+ ovl->caps = OMAP_DSS_OVL_CAP_SCALE |
+ OMAP_DSS_OVL_CAP_DISPC;
+ ovl->info.global_alpha = 255;
+ break;
+ }
+
+ ovl->set_manager = &omap_dss_set_manager;
+ ovl->unset_manager = &omap_dss_unset_manager;
+ ovl->set_overlay_info = &dss_ovl_set_overlay_info;
+ ovl->get_overlay_info = &dss_ovl_get_overlay_info;
+ ovl->wait_for_go = &dss_ovl_wait_for_go;
+
+ omap_dss_add_overlay(ovl);
+
+ r = kobject_init_and_add(&ovl->kobj, &overlay_ktype,
+ &pdev->dev.kobj, "overlay%d", i);
+
+ if (r) {
+ DSSERR("failed to create sysfs file\n");
+ continue;
+ }
+
+ dispc_overlays[i] = ovl;
+ }
+
+#ifdef L4_EXAMPLE
+ {
+ struct omap_overlay *ovl;
+ ovl = kzalloc(sizeof(*ovl), GFP_KERNEL);
+
+ BUG_ON(ovl == NULL);
+
+ ovl->name = "l4";
+ ovl->supported_modes = OMAP_DSS_COLOR_RGB24U;
+
+ ovl->set_manager = &omap_dss_set_manager;
+ ovl->unset_manager = &omap_dss_unset_manager;
+ ovl->set_overlay_info = &dss_ovl_set_overlay_info;
+ ovl->get_overlay_info = &dss_ovl_get_overlay_info;
+
+ omap_dss_add_overlay(ovl);
+
+ r = kobject_init_and_add(&ovl->kobj, &overlay_ktype,
+ &pdev->dev.kobj, "overlayl4");
+
+ if (r)
+ DSSERR("failed to create sysfs file\n");
+
+ l4_overlays[0] = ovl;
+ }
+#endif
+}
+
+/* connect overlays to the new device, if not already connected. if force
+ * selected, connect always. */
+void dss_recheck_connections(struct omap_dss_device *dssdev, bool force)
+{
+ int i;
+ struct omap_overlay_manager *lcd_mgr;
+ struct omap_overlay_manager *tv_mgr;
+ struct omap_overlay_manager *mgr = NULL;
+
+ lcd_mgr = omap_dss_get_overlay_manager(OMAP_DSS_OVL_MGR_LCD);
+ tv_mgr = omap_dss_get_overlay_manager(OMAP_DSS_OVL_MGR_TV);
+
+ if (dssdev->type != OMAP_DISPLAY_TYPE_VENC) {
+ if (!lcd_mgr->device || force) {
+ if (lcd_mgr->device)
+ lcd_mgr->unset_device(lcd_mgr);
+ lcd_mgr->set_device(lcd_mgr, dssdev);
+ mgr = lcd_mgr;
+ }
+ }
+
+ if (dssdev->type == OMAP_DISPLAY_TYPE_VENC) {
+ if (!tv_mgr->device || force) {
+ if (tv_mgr->device)
+ tv_mgr->unset_device(tv_mgr);
+ tv_mgr->set_device(tv_mgr, dssdev);
+ mgr = tv_mgr;
+ }
+ }
+
+ if (mgr) {
+ for (i = 0; i < 3; i++) {
+ struct omap_overlay *ovl;
+ ovl = omap_dss_get_overlay(i);
+ if (!ovl->manager || force) {
+ if (ovl->manager)
+ omap_dss_unset_manager(ovl);
+ omap_dss_set_manager(ovl, mgr);
+ }
+ }
+ }
+}
+
+void dss_uninit_overlays(struct platform_device *pdev)
+{
+ struct omap_overlay *ovl;
+
+ while (!list_empty(&overlay_list)) {
+ ovl = list_first_entry(&overlay_list,
+ struct omap_overlay, list);
+ list_del(&ovl->list);
+ kobject_del(&ovl->kobj);
+ kobject_put(&ovl->kobj);
+ kfree(ovl);
+ }
+
+ num_overlays = 0;
+}
+
--- /dev/null
+/*
+ * linux/drivers/video/omap2/dss/rfbi.c
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * Some code and ideas taken from drivers/video/omap/ driver
+ * by Imre Deak.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define DSS_SUBSYS_NAME "RFBI"
+
+#include <linux/kernel.h>
+#include <linux/dma-mapping.h>
+#include <linux/vmalloc.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/kfifo.h>
+#include <linux/ktime.h>
+#include <linux/hrtimer.h>
+#include <linux/seq_file.h>
+
+#include <plat/display.h>
+#include "dss.h"
+
+/*#define MEASURE_PERF*/
+
+#define RFBI_BASE 0x48050800
+
+struct rfbi_reg { u16 idx; };
+
+#define RFBI_REG(idx) ((const struct rfbi_reg) { idx })
+
+#define RFBI_REVISION RFBI_REG(0x0000)
+#define RFBI_SYSCONFIG RFBI_REG(0x0010)
+#define RFBI_SYSSTATUS RFBI_REG(0x0014)
+#define RFBI_CONTROL RFBI_REG(0x0040)
+#define RFBI_PIXEL_CNT RFBI_REG(0x0044)
+#define RFBI_LINE_NUMBER RFBI_REG(0x0048)
+#define RFBI_CMD RFBI_REG(0x004c)
+#define RFBI_PARAM RFBI_REG(0x0050)
+#define RFBI_DATA RFBI_REG(0x0054)
+#define RFBI_READ RFBI_REG(0x0058)
+#define RFBI_STATUS RFBI_REG(0x005c)
+
+#define RFBI_CONFIG(n) RFBI_REG(0x0060 + (n)*0x18)
+#define RFBI_ONOFF_TIME(n) RFBI_REG(0x0064 + (n)*0x18)
+#define RFBI_CYCLE_TIME(n) RFBI_REG(0x0068 + (n)*0x18)
+#define RFBI_DATA_CYCLE1(n) RFBI_REG(0x006c + (n)*0x18)
+#define RFBI_DATA_CYCLE2(n) RFBI_REG(0x0070 + (n)*0x18)
+#define RFBI_DATA_CYCLE3(n) RFBI_REG(0x0074 + (n)*0x18)
+
+#define RFBI_VSYNC_WIDTH RFBI_REG(0x0090)
+#define RFBI_HSYNC_WIDTH RFBI_REG(0x0094)
+
+#define RFBI_CMD_FIFO_LEN_BYTES (16 * sizeof(struct update_param))
+
+#define REG_FLD_MOD(idx, val, start, end) \
+ rfbi_write_reg(idx, FLD_MOD(rfbi_read_reg(idx), val, start, end))
+
+/* To work around an RFBI transfer rate limitation */
+#define OMAP_RFBI_RATE_LIMIT 1
+
+enum omap_rfbi_cycleformat {
+ OMAP_DSS_RFBI_CYCLEFORMAT_1_1 = 0,
+ OMAP_DSS_RFBI_CYCLEFORMAT_2_1 = 1,
+ OMAP_DSS_RFBI_CYCLEFORMAT_3_1 = 2,
+ OMAP_DSS_RFBI_CYCLEFORMAT_3_2 = 3,
+};
+
+enum omap_rfbi_datatype {
+ OMAP_DSS_RFBI_DATATYPE_12 = 0,
+ OMAP_DSS_RFBI_DATATYPE_16 = 1,
+ OMAP_DSS_RFBI_DATATYPE_18 = 2,
+ OMAP_DSS_RFBI_DATATYPE_24 = 3,
+};
+
+enum omap_rfbi_parallelmode {
+ OMAP_DSS_RFBI_PARALLELMODE_8 = 0,
+ OMAP_DSS_RFBI_PARALLELMODE_9 = 1,
+ OMAP_DSS_RFBI_PARALLELMODE_12 = 2,
+ OMAP_DSS_RFBI_PARALLELMODE_16 = 3,
+};
+
+enum update_cmd {
+ RFBI_CMD_UPDATE = 0,
+ RFBI_CMD_SYNC = 1,
+};
+
+static int rfbi_convert_timings(struct rfbi_timings *t);
+static void rfbi_get_clk_info(u32 *clk_period, u32 *max_clk_div);
+static void process_cmd_fifo(void);
+
+static struct {
+ void __iomem *base;
+
+ unsigned long l4_khz;
+
+ enum omap_rfbi_datatype datatype;
+ enum omap_rfbi_parallelmode parallelmode;
+
+ enum omap_rfbi_te_mode te_mode;
+ int te_enabled;
+
+ void (*framedone_callback)(void *data);
+ void *framedone_callback_data;
+
+ struct omap_dss_device *dssdev[2];
+
+ struct kfifo *cmd_fifo;
+ spinlock_t cmd_lock;
+ struct completion cmd_done;
+ atomic_t cmd_fifo_full;
+ atomic_t cmd_pending;
+#ifdef MEASURE_PERF
+ unsigned perf_bytes;
+ ktime_t perf_setup_time;
+ ktime_t perf_start_time;
+#endif
+} rfbi;
+
+struct update_region {
+ u16 x;
+ u16 y;
+ u16 w;
+ u16 h;
+};
+
+struct update_param {
+ u8 rfbi_module;
+ u8 cmd;
+
+ union {
+ struct update_region r;
+ struct completion *sync;
+ } par;
+};
+
+static inline void rfbi_write_reg(const struct rfbi_reg idx, u32 val)
+{
+ __raw_writel(val, rfbi.base + idx.idx);
+}
+
+static inline u32 rfbi_read_reg(const struct rfbi_reg idx)
+{
+ return __raw_readl(rfbi.base + idx.idx);
+}
+
+static void rfbi_enable_clocks(bool enable)
+{
+ if (enable)
+ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
+ else
+ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
+}
+
+void omap_rfbi_write_command(const void *buf, u32 len)
+{
+ rfbi_enable_clocks(1);
+ switch (rfbi.parallelmode) {
+ case OMAP_DSS_RFBI_PARALLELMODE_8:
+ {
+ const u8 *b = buf;
+ for (; len; len--)
+ rfbi_write_reg(RFBI_CMD, *b++);
+ break;
+ }
+
+ case OMAP_DSS_RFBI_PARALLELMODE_16:
+ {
+ const u16 *w = buf;
+ BUG_ON(len & 1);
+ for (; len; len -= 2)
+ rfbi_write_reg(RFBI_CMD, *w++);
+ break;
+ }
+
+ case OMAP_DSS_RFBI_PARALLELMODE_9:
+ case OMAP_DSS_RFBI_PARALLELMODE_12:
+ default:
+ BUG();
+ }
+ rfbi_enable_clocks(0);
+}
+EXPORT_SYMBOL(omap_rfbi_write_command);
+
+void omap_rfbi_read_data(void *buf, u32 len)
+{
+ rfbi_enable_clocks(1);
+ switch (rfbi.parallelmode) {
+ case OMAP_DSS_RFBI_PARALLELMODE_8:
+ {
+ u8 *b = buf;
+ for (; len; len--) {
+ rfbi_write_reg(RFBI_READ, 0);
+ *b++ = rfbi_read_reg(RFBI_READ);
+ }
+ break;
+ }
+
+ case OMAP_DSS_RFBI_PARALLELMODE_16:
+ {
+ u16 *w = buf;
+ BUG_ON(len & ~1);
+ for (; len; len -= 2) {
+ rfbi_write_reg(RFBI_READ, 0);
+ *w++ = rfbi_read_reg(RFBI_READ);
+ }
+ break;
+ }
+
+ case OMAP_DSS_RFBI_PARALLELMODE_9:
+ case OMAP_DSS_RFBI_PARALLELMODE_12:
+ default:
+ BUG();
+ }
+ rfbi_enable_clocks(0);
+}
+EXPORT_SYMBOL(omap_rfbi_read_data);
+
+void omap_rfbi_write_data(const void *buf, u32 len)
+{
+ rfbi_enable_clocks(1);
+ switch (rfbi.parallelmode) {
+ case OMAP_DSS_RFBI_PARALLELMODE_8:
+ {
+ const u8 *b = buf;
+ for (; len; len--)
+ rfbi_write_reg(RFBI_PARAM, *b++);
+ break;
+ }
+
+ case OMAP_DSS_RFBI_PARALLELMODE_16:
+ {
+ const u16 *w = buf;
+ BUG_ON(len & 1);
+ for (; len; len -= 2)
+ rfbi_write_reg(RFBI_PARAM, *w++);
+ break;
+ }
+
+ case OMAP_DSS_RFBI_PARALLELMODE_9:
+ case OMAP_DSS_RFBI_PARALLELMODE_12:
+ default:
+ BUG();
+
+ }
+ rfbi_enable_clocks(0);
+}
+EXPORT_SYMBOL(omap_rfbi_write_data);
+
+void omap_rfbi_write_pixels(const void __iomem *buf, int scr_width,
+ u16 x, u16 y,
+ u16 w, u16 h)
+{
+ int start_offset = scr_width * y + x;
+ int horiz_offset = scr_width - w;
+ int i;
+
+ rfbi_enable_clocks(1);
+
+ if (rfbi.datatype == OMAP_DSS_RFBI_DATATYPE_16 &&
+ rfbi.parallelmode == OMAP_DSS_RFBI_PARALLELMODE_8) {
+ const u16 __iomem *pd = buf;
+ pd += start_offset;
+
+ for (; h; --h) {
+ for (i = 0; i < w; ++i) {
+ const u8 __iomem *b = (const u8 __iomem *)pd;
+ rfbi_write_reg(RFBI_PARAM, __raw_readb(b+1));
+ rfbi_write_reg(RFBI_PARAM, __raw_readb(b+0));
+ ++pd;
+ }
+ pd += horiz_offset;
+ }
+ } else if (rfbi.datatype == OMAP_DSS_RFBI_DATATYPE_24 &&
+ rfbi.parallelmode == OMAP_DSS_RFBI_PARALLELMODE_8) {
+ const u32 __iomem *pd = buf;
+ pd += start_offset;
+
+ for (; h; --h) {
+ for (i = 0; i < w; ++i) {
+ const u8 __iomem *b = (const u8 __iomem *)pd;
+ rfbi_write_reg(RFBI_PARAM, __raw_readb(b+2));
+ rfbi_write_reg(RFBI_PARAM, __raw_readb(b+1));
+ rfbi_write_reg(RFBI_PARAM, __raw_readb(b+0));
+ ++pd;
+ }
+ pd += horiz_offset;
+ }
+ } else if (rfbi.datatype == OMAP_DSS_RFBI_DATATYPE_16 &&
+ rfbi.parallelmode == OMAP_DSS_RFBI_PARALLELMODE_16) {
+ const u16 __iomem *pd = buf;
+ pd += start_offset;
+
+ for (; h; --h) {
+ for (i = 0; i < w; ++i) {
+ rfbi_write_reg(RFBI_PARAM, __raw_readw(pd));
+ ++pd;
+ }
+ pd += horiz_offset;
+ }
+ } else {
+ BUG();
+ }
+
+ rfbi_enable_clocks(0);
+}
+EXPORT_SYMBOL(omap_rfbi_write_pixels);
+
+#ifdef MEASURE_PERF
+static void perf_mark_setup(void)
+{
+ rfbi.perf_setup_time = ktime_get();
+}
+
+static void perf_mark_start(void)
+{
+ rfbi.perf_start_time = ktime_get();
+}
+
+static void perf_show(const char *name)
+{
+ ktime_t t, setup_time, trans_time;
+ u32 total_bytes;
+ u32 setup_us, trans_us, total_us;
+
+ t = ktime_get();
+
+ setup_time = ktime_sub(rfbi.perf_start_time, rfbi.perf_setup_time);
+ setup_us = (u32)ktime_to_us(setup_time);
+ if (setup_us == 0)
+ setup_us = 1;
+
+ trans_time = ktime_sub(t, rfbi.perf_start_time);
+ trans_us = (u32)ktime_to_us(trans_time);
+ if (trans_us == 0)
+ trans_us = 1;
+
+ total_us = setup_us + trans_us;
+
+ total_bytes = rfbi.perf_bytes;
+
+ DSSINFO("%s update %u us + %u us = %u us (%uHz), %u bytes, "
+ "%u kbytes/sec\n",
+ name,
+ setup_us,
+ trans_us,
+ total_us,
+ 1000*1000 / total_us,
+ total_bytes,
+ total_bytes * 1000 / total_us);
+}
+#else
+#define perf_mark_setup()
+#define perf_mark_start()
+#define perf_show(x)
+#endif
+
+void rfbi_transfer_area(u16 width, u16 height,
+ void (callback)(void *data), void *data)
+{
+ u32 l;
+
+ /*BUG_ON(callback == 0);*/
+ BUG_ON(rfbi.framedone_callback != NULL);
+
+ DSSDBG("rfbi_transfer_area %dx%d\n", width, height);
+
+ dispc_set_lcd_size(width, height);
+
+ dispc_enable_lcd_out(1);
+
+ rfbi.framedone_callback = callback;
+ rfbi.framedone_callback_data = data;
+
+ rfbi_enable_clocks(1);
+
+ rfbi_write_reg(RFBI_PIXEL_CNT, width * height);
+
+ l = rfbi_read_reg(RFBI_CONTROL);
+ l = FLD_MOD(l, 1, 0, 0); /* enable */
+ if (!rfbi.te_enabled)
+ l = FLD_MOD(l, 1, 4, 4); /* ITE */
+
+ perf_mark_start();
+
+ rfbi_write_reg(RFBI_CONTROL, l);
+}
+
+static void framedone_callback(void *data, u32 mask)
+{
+ void (*callback)(void *data);
+
+ DSSDBG("FRAMEDONE\n");
+
+ perf_show("DISPC");
+
+ REG_FLD_MOD(RFBI_CONTROL, 0, 0, 0);
+
+ rfbi_enable_clocks(0);
+
+ callback = rfbi.framedone_callback;
+ rfbi.framedone_callback = NULL;
+
+ /*callback(rfbi.framedone_callback_data);*/
+
+ atomic_set(&rfbi.cmd_pending, 0);
+
+ process_cmd_fifo();
+}
+
+#if 1 /* VERBOSE */
+static void rfbi_print_timings(void)
+{
+ u32 l;
+ u32 time;
+
+ l = rfbi_read_reg(RFBI_CONFIG(0));
+ time = 1000000000 / rfbi.l4_khz;
+ if (l & (1 << 4))
+ time *= 2;
+
+ DSSDBG("Tick time %u ps\n", time);
+ l = rfbi_read_reg(RFBI_ONOFF_TIME(0));
+ DSSDBG("CSONTIME %d, CSOFFTIME %d, WEONTIME %d, WEOFFTIME %d, "
+ "REONTIME %d, REOFFTIME %d\n",
+ l & 0x0f, (l >> 4) & 0x3f, (l >> 10) & 0x0f, (l >> 14) & 0x3f,
+ (l >> 20) & 0x0f, (l >> 24) & 0x3f);
+
+ l = rfbi_read_reg(RFBI_CYCLE_TIME(0));
+ DSSDBG("WECYCLETIME %d, RECYCLETIME %d, CSPULSEWIDTH %d, "
+ "ACCESSTIME %d\n",
+ (l & 0x3f), (l >> 6) & 0x3f, (l >> 12) & 0x3f,
+ (l >> 22) & 0x3f);
+}
+#else
+static void rfbi_print_timings(void) {}
+#endif
+
+
+
+
+static u32 extif_clk_period;
+
+static inline unsigned long round_to_extif_ticks(unsigned long ps, int div)
+{
+ int bus_tick = extif_clk_period * div;
+ return (ps + bus_tick - 1) / bus_tick * bus_tick;
+}
+
+static int calc_reg_timing(struct rfbi_timings *t, int div)
+{
+ t->clk_div = div;
+
+ t->cs_on_time = round_to_extif_ticks(t->cs_on_time, div);
+
+ t->we_on_time = round_to_extif_ticks(t->we_on_time, div);
+ t->we_off_time = round_to_extif_ticks(t->we_off_time, div);
+ t->we_cycle_time = round_to_extif_ticks(t->we_cycle_time, div);
+
+ t->re_on_time = round_to_extif_ticks(t->re_on_time, div);
+ t->re_off_time = round_to_extif_ticks(t->re_off_time, div);
+ t->re_cycle_time = round_to_extif_ticks(t->re_cycle_time, div);
+
+ t->access_time = round_to_extif_ticks(t->access_time, div);
+ t->cs_off_time = round_to_extif_ticks(t->cs_off_time, div);
+ t->cs_pulse_width = round_to_extif_ticks(t->cs_pulse_width, div);
+
+ DSSDBG("[reg]cson %d csoff %d reon %d reoff %d\n",
+ t->cs_on_time, t->cs_off_time, t->re_on_time, t->re_off_time);
+ DSSDBG("[reg]weon %d weoff %d recyc %d wecyc %d\n",
+ t->we_on_time, t->we_off_time, t->re_cycle_time,
+ t->we_cycle_time);
+ DSSDBG("[reg]rdaccess %d cspulse %d\n",
+ t->access_time, t->cs_pulse_width);
+
+ return rfbi_convert_timings(t);
+}
+
+static int calc_extif_timings(struct rfbi_timings *t)
+{
+ u32 max_clk_div;
+ int div;
+
+ rfbi_get_clk_info(&extif_clk_period, &max_clk_div);
+ for (div = 1; div <= max_clk_div; div++) {
+ if (calc_reg_timing(t, div) == 0)
+ break;
+ }
+
+ if (div <= max_clk_div)
+ return 0;
+
+ DSSERR("can't setup timings\n");
+ return -1;
+}
+
+
+void rfbi_set_timings(int rfbi_module, struct rfbi_timings *t)
+{
+ int r;
+
+ if (!t->converted) {
+ r = calc_extif_timings(t);
+ if (r < 0)
+ DSSERR("Failed to calc timings\n");
+ }
+
+ BUG_ON(!t->converted);
+
+ rfbi_enable_clocks(1);
+ rfbi_write_reg(RFBI_ONOFF_TIME(rfbi_module), t->tim[0]);
+ rfbi_write_reg(RFBI_CYCLE_TIME(rfbi_module), t->tim[1]);
+
+ /* TIMEGRANULARITY */
+ REG_FLD_MOD(RFBI_CONFIG(rfbi_module),
+ (t->tim[2] ? 1 : 0), 4, 4);
+
+ rfbi_print_timings();
+ rfbi_enable_clocks(0);
+}
+
+static int ps_to_rfbi_ticks(int time, int div)
+{
+ unsigned long tick_ps;
+ int ret;
+
+ /* Calculate in picosecs to yield more exact results */
+ tick_ps = 1000000000 / (rfbi.l4_khz) * div;
+
+ ret = (time + tick_ps - 1) / tick_ps;
+
+ return ret;
+}
+
+#ifdef OMAP_RFBI_RATE_LIMIT
+unsigned long rfbi_get_max_tx_rate(void)
+{
+ unsigned long l4_rate, dss1_rate;
+ int min_l4_ticks = 0;
+ int i;
+
+ /* According to TI this can't be calculated so make the
+ * adjustments for a couple of known frequencies and warn for
+ * others.
+ */
+ static const struct {
+ unsigned long l4_clk; /* HZ */
+ unsigned long dss1_clk; /* HZ */
+ unsigned long min_l4_ticks;
+ } ftab[] = {
+ { 55, 132, 7, }, /* 7.86 MPix/s */
+ { 110, 110, 12, }, /* 9.16 MPix/s */
+ { 110, 132, 10, }, /* 11 Mpix/s */
+ { 120, 120, 10, }, /* 12 Mpix/s */
+ { 133, 133, 10, }, /* 13.3 Mpix/s */
+ };
+
+ l4_rate = rfbi.l4_khz / 1000;
+ dss1_rate = dss_clk_get_rate(DSS_CLK_FCK1) / 1000000;
+
+ for (i = 0; i < ARRAY_SIZE(ftab); i++) {
+ /* Use a window instead of an exact match, to account
+ * for different DPLL multiplier / divider pairs.
+ */
+ if (abs(ftab[i].l4_clk - l4_rate) < 3 &&
+ abs(ftab[i].dss1_clk - dss1_rate) < 3) {
+ min_l4_ticks = ftab[i].min_l4_ticks;
+ break;
+ }
+ }
+ if (i == ARRAY_SIZE(ftab)) {
+ /* Can't be sure, return anyway the maximum not
+ * rate-limited. This might cause a problem only for the
+ * tearing synchronisation.
+ */
+ DSSERR("can't determine maximum RFBI transfer rate\n");
+ return rfbi.l4_khz * 1000;
+ }
+ return rfbi.l4_khz * 1000 / min_l4_ticks;
+}
+#else
+int rfbi_get_max_tx_rate(void)
+{
+ return rfbi.l4_khz * 1000;
+}
+#endif
+
+static void rfbi_get_clk_info(u32 *clk_period, u32 *max_clk_div)
+{
+ *clk_period = 1000000000 / rfbi.l4_khz;
+ *max_clk_div = 2;
+}
+
+static int rfbi_convert_timings(struct rfbi_timings *t)
+{
+ u32 l;
+ int reon, reoff, weon, weoff, cson, csoff, cs_pulse;
+ int actim, recyc, wecyc;
+ int div = t->clk_div;
+
+ if (div <= 0 || div > 2)
+ return -1;
+
+ /* Make sure that after conversion it still holds that:
+ * weoff > weon, reoff > reon, recyc >= reoff, wecyc >= weoff,
+ * csoff > cson, csoff >= max(weoff, reoff), actim > reon
+ */
+ weon = ps_to_rfbi_ticks(t->we_on_time, div);
+ weoff = ps_to_rfbi_ticks(t->we_off_time, div);
+ if (weoff <= weon)
+ weoff = weon + 1;
+ if (weon > 0x0f)
+ return -1;
+ if (weoff > 0x3f)
+ return -1;
+
+ reon = ps_to_rfbi_ticks(t->re_on_time, div);
+ reoff = ps_to_rfbi_ticks(t->re_off_time, div);
+ if (reoff <= reon)
+ reoff = reon + 1;
+ if (reon > 0x0f)
+ return -1;
+ if (reoff > 0x3f)
+ return -1;
+
+ cson = ps_to_rfbi_ticks(t->cs_on_time, div);
+ csoff = ps_to_rfbi_ticks(t->cs_off_time, div);
+ if (csoff <= cson)
+ csoff = cson + 1;
+ if (csoff < max(weoff, reoff))
+ csoff = max(weoff, reoff);
+ if (cson > 0x0f)
+ return -1;
+ if (csoff > 0x3f)
+ return -1;
+
+ l = cson;
+ l |= csoff << 4;
+ l |= weon << 10;
+ l |= weoff << 14;
+ l |= reon << 20;
+ l |= reoff << 24;
+
+ t->tim[0] = l;
+
+ actim = ps_to_rfbi_ticks(t->access_time, div);
+ if (actim <= reon)
+ actim = reon + 1;
+ if (actim > 0x3f)
+ return -1;
+
+ wecyc = ps_to_rfbi_ticks(t->we_cycle_time, div);
+ if (wecyc < weoff)
+ wecyc = weoff;
+ if (wecyc > 0x3f)
+ return -1;
+
+ recyc = ps_to_rfbi_ticks(t->re_cycle_time, div);
+ if (recyc < reoff)
+ recyc = reoff;
+ if (recyc > 0x3f)
+ return -1;
+
+ cs_pulse = ps_to_rfbi_ticks(t->cs_pulse_width, div);
+ if (cs_pulse > 0x3f)
+ return -1;
+
+ l = wecyc;
+ l |= recyc << 6;
+ l |= cs_pulse << 12;
+ l |= actim << 22;
+
+ t->tim[1] = l;
+
+ t->tim[2] = div - 1;
+
+ t->converted = 1;
+
+ return 0;
+}
+
+/* xxx FIX module selection missing */
+int omap_rfbi_setup_te(enum omap_rfbi_te_mode mode,
+ unsigned hs_pulse_time, unsigned vs_pulse_time,
+ int hs_pol_inv, int vs_pol_inv, int extif_div)
+{
+ int hs, vs;
+ int min;
+ u32 l;
+
+ hs = ps_to_rfbi_ticks(hs_pulse_time, 1);
+ vs = ps_to_rfbi_ticks(vs_pulse_time, 1);
+ if (hs < 2)
+ return -EDOM;
+ if (mode == OMAP_DSS_RFBI_TE_MODE_2)
+ min = 2;
+ else /* OMAP_DSS_RFBI_TE_MODE_1 */
+ min = 4;
+ if (vs < min)
+ return -EDOM;
+ if (vs == hs)
+ return -EINVAL;
+ rfbi.te_mode = mode;
+ DSSDBG("setup_te: mode %d hs %d vs %d hs_inv %d vs_inv %d\n",
+ mode, hs, vs, hs_pol_inv, vs_pol_inv);
+
+ rfbi_enable_clocks(1);
+ rfbi_write_reg(RFBI_HSYNC_WIDTH, hs);
+ rfbi_write_reg(RFBI_VSYNC_WIDTH, vs);
+
+ l = rfbi_read_reg(RFBI_CONFIG(0));
+ if (hs_pol_inv)
+ l &= ~(1 << 21);
+ else
+ l |= 1 << 21;
+ if (vs_pol_inv)
+ l &= ~(1 << 20);
+ else
+ l |= 1 << 20;
+ rfbi_enable_clocks(0);
+
+ return 0;
+}
+EXPORT_SYMBOL(omap_rfbi_setup_te);
+
+/* xxx FIX module selection missing */
+int omap_rfbi_enable_te(bool enable, unsigned line)
+{
+ u32 l;
+
+ DSSDBG("te %d line %d mode %d\n", enable, line, rfbi.te_mode);
+ if (line > (1 << 11) - 1)
+ return -EINVAL;
+
+ rfbi_enable_clocks(1);
+ l = rfbi_read_reg(RFBI_CONFIG(0));
+ l &= ~(0x3 << 2);
+ if (enable) {
+ rfbi.te_enabled = 1;
+ l |= rfbi.te_mode << 2;
+ } else
+ rfbi.te_enabled = 0;
+ rfbi_write_reg(RFBI_CONFIG(0), l);
+ rfbi_write_reg(RFBI_LINE_NUMBER, line);
+ rfbi_enable_clocks(0);
+
+ return 0;
+}
+EXPORT_SYMBOL(omap_rfbi_enable_te);
+
+#if 0
+static void rfbi_enable_config(int enable1, int enable2)
+{
+ u32 l;
+ int cs = 0;
+
+ if (enable1)
+ cs |= 1<<0;
+ if (enable2)
+ cs |= 1<<1;
+
+ rfbi_enable_clocks(1);
+
+ l = rfbi_read_reg(RFBI_CONTROL);
+
+ l = FLD_MOD(l, cs, 3, 2);
+ l = FLD_MOD(l, 0, 1, 1);
+
+ rfbi_write_reg(RFBI_CONTROL, l);
+
+
+ l = rfbi_read_reg(RFBI_CONFIG(0));
+ l = FLD_MOD(l, 0, 3, 2); /* TRIGGERMODE: ITE */
+ /*l |= FLD_VAL(2, 8, 7); */ /* L4FORMAT, 2pix/L4 */
+ /*l |= FLD_VAL(0, 8, 7); */ /* L4FORMAT, 1pix/L4 */
+
+ l = FLD_MOD(l, 0, 16, 16); /* A0POLARITY */
+ l = FLD_MOD(l, 1, 20, 20); /* TE_VSYNC_POLARITY */
+ l = FLD_MOD(l, 1, 21, 21); /* HSYNCPOLARITY */
+
+ l = FLD_MOD(l, OMAP_DSS_RFBI_PARALLELMODE_8, 1, 0);
+ rfbi_write_reg(RFBI_CONFIG(0), l);
+
+ rfbi_enable_clocks(0);
+}
+#endif
+
+int rfbi_configure(int rfbi_module, int bpp, int lines)
+{
+ u32 l;
+ int cycle1 = 0, cycle2 = 0, cycle3 = 0;
+ enum omap_rfbi_cycleformat cycleformat;
+ enum omap_rfbi_datatype datatype;
+ enum omap_rfbi_parallelmode parallelmode;
+
+ switch (bpp) {
+ case 12:
+ datatype = OMAP_DSS_RFBI_DATATYPE_12;
+ break;
+ case 16:
+ datatype = OMAP_DSS_RFBI_DATATYPE_16;
+ break;
+ case 18:
+ datatype = OMAP_DSS_RFBI_DATATYPE_18;
+ break;
+ case 24:
+ datatype = OMAP_DSS_RFBI_DATATYPE_24;
+ break;
+ default:
+ BUG();
+ return 1;
+ }
+ rfbi.datatype = datatype;
+
+ switch (lines) {
+ case 8:
+ parallelmode = OMAP_DSS_RFBI_PARALLELMODE_8;
+ break;
+ case 9:
+ parallelmode = OMAP_DSS_RFBI_PARALLELMODE_9;
+ break;
+ case 12:
+ parallelmode = OMAP_DSS_RFBI_PARALLELMODE_12;
+ break;
+ case 16:
+ parallelmode = OMAP_DSS_RFBI_PARALLELMODE_16;
+ break;
+ default:
+ BUG();
+ return 1;
+ }
+ rfbi.parallelmode = parallelmode;
+
+ if ((bpp % lines) == 0) {
+ switch (bpp / lines) {
+ case 1:
+ cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_1_1;
+ break;
+ case 2:
+ cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_2_1;
+ break;
+ case 3:
+ cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_3_1;
+ break;
+ default:
+ BUG();
+ return 1;
+ }
+ } else if ((2 * bpp % lines) == 0) {
+ if ((2 * bpp / lines) == 3)
+ cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_3_2;
+ else {
+ BUG();
+ return 1;
+ }
+ } else {
+ BUG();
+ return 1;
+ }
+
+ switch (cycleformat) {
+ case OMAP_DSS_RFBI_CYCLEFORMAT_1_1:
+ cycle1 = lines;
+ break;
+
+ case OMAP_DSS_RFBI_CYCLEFORMAT_2_1:
+ cycle1 = lines;
+ cycle2 = lines;
+ break;
+
+ case OMAP_DSS_RFBI_CYCLEFORMAT_3_1:
+ cycle1 = lines;
+ cycle2 = lines;
+ cycle3 = lines;
+ break;
+
+ case OMAP_DSS_RFBI_CYCLEFORMAT_3_2:
+ cycle1 = lines;
+ cycle2 = (lines / 2) | ((lines / 2) << 16);
+ cycle3 = (lines << 16);
+ break;
+ }
+
+ rfbi_enable_clocks(1);
+
+ REG_FLD_MOD(RFBI_CONTROL, 0, 3, 2); /* clear CS */
+
+ l = 0;
+ l |= FLD_VAL(parallelmode, 1, 0);
+ l |= FLD_VAL(0, 3, 2); /* TRIGGERMODE: ITE */
+ l |= FLD_VAL(0, 4, 4); /* TIMEGRANULARITY */
+ l |= FLD_VAL(datatype, 6, 5);
+ /* l |= FLD_VAL(2, 8, 7); */ /* L4FORMAT, 2pix/L4 */
+ l |= FLD_VAL(0, 8, 7); /* L4FORMAT, 1pix/L4 */
+ l |= FLD_VAL(cycleformat, 10, 9);
+ l |= FLD_VAL(0, 12, 11); /* UNUSEDBITS */
+ l |= FLD_VAL(0, 16, 16); /* A0POLARITY */
+ l |= FLD_VAL(0, 17, 17); /* REPOLARITY */
+ l |= FLD_VAL(0, 18, 18); /* WEPOLARITY */
+ l |= FLD_VAL(0, 19, 19); /* CSPOLARITY */
+ l |= FLD_VAL(1, 20, 20); /* TE_VSYNC_POLARITY */
+ l |= FLD_VAL(1, 21, 21); /* HSYNCPOLARITY */
+ rfbi_write_reg(RFBI_CONFIG(rfbi_module), l);
+
+ rfbi_write_reg(RFBI_DATA_CYCLE1(rfbi_module), cycle1);
+ rfbi_write_reg(RFBI_DATA_CYCLE2(rfbi_module), cycle2);
+ rfbi_write_reg(RFBI_DATA_CYCLE3(rfbi_module), cycle3);
+
+
+ l = rfbi_read_reg(RFBI_CONTROL);
+ l = FLD_MOD(l, rfbi_module+1, 3, 2); /* Select CSx */
+ l = FLD_MOD(l, 0, 1, 1); /* clear bypass */
+ rfbi_write_reg(RFBI_CONTROL, l);
+
+
+ DSSDBG("RFBI config: bpp %d, lines %d, cycles: 0x%x 0x%x 0x%x\n",
+ bpp, lines, cycle1, cycle2, cycle3);
+
+ rfbi_enable_clocks(0);
+
+ return 0;
+}
+EXPORT_SYMBOL(rfbi_configure);
+
+static int rfbi_find_display(struct omap_dss_device *dssdev)
+{
+ if (dssdev == rfbi.dssdev[0])
+ return 0;
+
+ if (dssdev == rfbi.dssdev[1])
+ return 1;
+
+ BUG();
+ return -1;
+}
+
+
+static void signal_fifo_waiters(void)
+{
+ if (atomic_read(&rfbi.cmd_fifo_full) > 0) {
+ /* DSSDBG("SIGNALING: Fifo not full for waiter!\n"); */
+ complete(&rfbi.cmd_done);
+ atomic_dec(&rfbi.cmd_fifo_full);
+ }
+}
+
+/* returns 1 for async op, and 0 for sync op */
+static int do_update(struct omap_dss_device *dssdev, struct update_region *upd)
+{
+ u16 x = upd->x;
+ u16 y = upd->y;
+ u16 w = upd->w;
+ u16 h = upd->h;
+
+ perf_mark_setup();
+
+ if (dssdev->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) {
+ /*dssdev->driver->enable_te(dssdev, 1); */
+ dss_setup_partial_planes(dssdev, &x, &y, &w, &h);
+ }
+
+#ifdef MEASURE_PERF
+ rfbi.perf_bytes = w * h * 2; /* XXX always 16bit */
+#endif
+
+ dssdev->driver->setup_update(dssdev, x, y, w, h);
+
+ if (dssdev->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) {
+ rfbi_transfer_area(w, h, NULL, NULL);
+ return 1;
+ } else {
+ struct omap_overlay *ovl;
+ void __iomem *addr;
+ int scr_width;
+
+ ovl = dssdev->manager->overlays[0];
+ scr_width = ovl->info.screen_width;
+ addr = ovl->info.vaddr;
+
+ omap_rfbi_write_pixels(addr, scr_width, x, y, w, h);
+
+ perf_show("L4");
+
+ return 0;
+ }
+}
+
+static void process_cmd_fifo(void)
+{
+ int len;
+ struct update_param p;
+ struct omap_dss_device *dssdev;
+ unsigned long flags;
+
+ if (atomic_inc_return(&rfbi.cmd_pending) != 1)
+ return;
+
+ while (true) {
+ spin_lock_irqsave(rfbi.cmd_fifo->lock, flags);
+
+ len = __kfifo_get(rfbi.cmd_fifo, (unsigned char *)&p,
+ sizeof(struct update_param));
+ if (len == 0) {
+ DSSDBG("nothing more in fifo\n");
+ atomic_set(&rfbi.cmd_pending, 0);
+ spin_unlock_irqrestore(rfbi.cmd_fifo->lock, flags);
+ break;
+ }
+
+ /* DSSDBG("fifo full %d\n", rfbi.cmd_fifo_full.counter);*/
+
+ spin_unlock_irqrestore(rfbi.cmd_fifo->lock, flags);
+
+ BUG_ON(len != sizeof(struct update_param));
+ BUG_ON(p.rfbi_module > 1);
+
+ dssdev = rfbi.dssdev[p.rfbi_module];
+
+ if (p.cmd == RFBI_CMD_UPDATE) {
+ if (do_update(dssdev, &p.par.r))
+ break; /* async op */
+ } else if (p.cmd == RFBI_CMD_SYNC) {
+ DSSDBG("Signaling SYNC done!\n");
+ complete(p.par.sync);
+ } else
+ BUG();
+ }
+
+ signal_fifo_waiters();
+}
+
+static void rfbi_push_cmd(struct update_param *p)
+{
+ int ret;
+
+ while (1) {
+ unsigned long flags;
+ int available;
+
+ spin_lock_irqsave(rfbi.cmd_fifo->lock, flags);
+ available = RFBI_CMD_FIFO_LEN_BYTES -
+ __kfifo_len(rfbi.cmd_fifo);
+
+/* DSSDBG("%d bytes left in fifo\n", available); */
+ if (available < sizeof(struct update_param)) {
+ DSSDBG("Going to wait because FIFO FULL..\n");
+ spin_unlock_irqrestore(rfbi.cmd_fifo->lock, flags);
+ atomic_inc(&rfbi.cmd_fifo_full);
+ wait_for_completion(&rfbi.cmd_done);
+ /*DSSDBG("Woke up because fifo not full anymore\n");*/
+ continue;
+ }
+
+ ret = __kfifo_put(rfbi.cmd_fifo, (unsigned char *)p,
+ sizeof(struct update_param));
+/* DSSDBG("pushed %d bytes\n", ret);*/
+
+ spin_unlock_irqrestore(rfbi.cmd_fifo->lock, flags);
+
+ BUG_ON(ret != sizeof(struct update_param));
+
+ break;
+ }
+}
+
+static void rfbi_push_update(int rfbi_module, int x, int y, int w, int h)
+{
+ struct update_param p;
+
+ p.rfbi_module = rfbi_module;
+ p.cmd = RFBI_CMD_UPDATE;
+
+ p.par.r.x = x;
+ p.par.r.y = y;
+ p.par.r.w = w;
+ p.par.r.h = h;
+
+ DSSDBG("RFBI pushed %d,%d %dx%d\n", x, y, w, h);
+
+ rfbi_push_cmd(&p);
+
+ process_cmd_fifo();
+}
+
+static void rfbi_push_sync(int rfbi_module, struct completion *sync_comp)
+{
+ struct update_param p;
+
+ p.rfbi_module = rfbi_module;
+ p.cmd = RFBI_CMD_SYNC;
+ p.par.sync = sync_comp;
+
+ rfbi_push_cmd(&p);
+
+ DSSDBG("RFBI sync pushed to cmd fifo\n");
+
+ process_cmd_fifo();
+}
+
+void rfbi_dump_regs(struct seq_file *s)
+{
+#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, rfbi_read_reg(r))
+
+ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
+
+ DUMPREG(RFBI_REVISION);
+ DUMPREG(RFBI_SYSCONFIG);
+ DUMPREG(RFBI_SYSSTATUS);
+ DUMPREG(RFBI_CONTROL);
+ DUMPREG(RFBI_PIXEL_CNT);
+ DUMPREG(RFBI_LINE_NUMBER);
+ DUMPREG(RFBI_CMD);
+ DUMPREG(RFBI_PARAM);
+ DUMPREG(RFBI_DATA);
+ DUMPREG(RFBI_READ);
+ DUMPREG(RFBI_STATUS);
+
+ DUMPREG(RFBI_CONFIG(0));
+ DUMPREG(RFBI_ONOFF_TIME(0));
+ DUMPREG(RFBI_CYCLE_TIME(0));
+ DUMPREG(RFBI_DATA_CYCLE1(0));
+ DUMPREG(RFBI_DATA_CYCLE2(0));
+ DUMPREG(RFBI_DATA_CYCLE3(0));
+
+ DUMPREG(RFBI_CONFIG(1));
+ DUMPREG(RFBI_ONOFF_TIME(1));
+ DUMPREG(RFBI_CYCLE_TIME(1));
+ DUMPREG(RFBI_DATA_CYCLE1(1));
+ DUMPREG(RFBI_DATA_CYCLE2(1));
+ DUMPREG(RFBI_DATA_CYCLE3(1));
+
+ DUMPREG(RFBI_VSYNC_WIDTH);
+ DUMPREG(RFBI_HSYNC_WIDTH);
+
+ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
+#undef DUMPREG
+}
+
+int rfbi_init(void)
+{
+ u32 rev;
+ u32 l;
+
+ spin_lock_init(&rfbi.cmd_lock);
+ rfbi.cmd_fifo = kfifo_alloc(RFBI_CMD_FIFO_LEN_BYTES, GFP_KERNEL,
+ &rfbi.cmd_lock);
+ if (IS_ERR(rfbi.cmd_fifo))
+ return -ENOMEM;
+
+ init_completion(&rfbi.cmd_done);
+ atomic_set(&rfbi.cmd_fifo_full, 0);
+ atomic_set(&rfbi.cmd_pending, 0);
+
+ rfbi.base = ioremap(RFBI_BASE, SZ_256);
+ if (!rfbi.base) {
+ DSSERR("can't ioremap RFBI\n");
+ return -ENOMEM;
+ }
+
+ rfbi_enable_clocks(1);
+
+ msleep(10);
+
+ rfbi.l4_khz = dss_clk_get_rate(DSS_CLK_ICK) / 1000;
+
+ /* Enable autoidle and smart-idle */
+ l = rfbi_read_reg(RFBI_SYSCONFIG);
+ l |= (1 << 0) | (2 << 3);
+ rfbi_write_reg(RFBI_SYSCONFIG, l);
+
+ rev = rfbi_read_reg(RFBI_REVISION);
+ printk(KERN_INFO "OMAP RFBI rev %d.%d\n",
+ FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0));
+
+ rfbi_enable_clocks(0);
+
+ return 0;
+}
+
+void rfbi_exit(void)
+{
+ DSSDBG("rfbi_exit\n");
+
+ kfifo_free(rfbi.cmd_fifo);
+
+ iounmap(rfbi.base);
+}
+
+/* struct omap_display support */
+static int rfbi_display_update(struct omap_dss_device *dssdev,
+ u16 x, u16 y, u16 w, u16 h)
+{
+ int rfbi_module;
+
+ if (w == 0 || h == 0)
+ return 0;
+
+ rfbi_module = rfbi_find_display(dssdev);
+
+ rfbi_push_update(rfbi_module, x, y, w, h);
+
+ return 0;
+}
+
+static int rfbi_display_sync(struct omap_dss_device *dssdev)
+{
+ struct completion sync_comp;
+ int rfbi_module;
+
+ rfbi_module = rfbi_find_display(dssdev);
+
+ init_completion(&sync_comp);
+ rfbi_push_sync(rfbi_module, &sync_comp);
+ DSSDBG("Waiting for SYNC to happen...\n");
+ wait_for_completion(&sync_comp);
+ DSSDBG("Released from SYNC\n");
+ return 0;
+}
+
+static int rfbi_display_enable_te(struct omap_dss_device *dssdev, bool enable)
+{
+ dssdev->driver->enable_te(dssdev, enable);
+ return 0;
+}
+
+static int rfbi_display_enable(struct omap_dss_device *dssdev)
+{
+ int r;
+
+ r = omap_dss_start_device(dssdev);
+ if (r) {
+ DSSERR("failed to start device\n");
+ goto err0;
+ }
+
+ r = omap_dispc_register_isr(framedone_callback, NULL,
+ DISPC_IRQ_FRAMEDONE);
+ if (r) {
+ DSSERR("can't get FRAMEDONE irq\n");
+ goto err1;
+ }
+
+ dispc_set_lcd_display_type(OMAP_DSS_LCD_DISPLAY_TFT);
+
+ dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_RFBI);
+
+ dispc_set_tft_data_lines(dssdev->ctrl.pixel_size);
+
+ rfbi_configure(dssdev->phy.rfbi.channel,
+ dssdev->ctrl.pixel_size,
+ dssdev->phy.rfbi.data_lines);
+
+ rfbi_set_timings(dssdev->phy.rfbi.channel,
+ &dssdev->ctrl.rfbi_timings);
+
+
+ if (dssdev->driver->enable) {
+ r = dssdev->driver->enable(dssdev);
+ if (r)
+ goto err2;
+ }
+
+ return 0;
+err2:
+ omap_dispc_unregister_isr(framedone_callback, NULL,
+ DISPC_IRQ_FRAMEDONE);
+err1:
+ omap_dss_stop_device(dssdev);
+err0:
+ return r;
+}
+
+static void rfbi_display_disable(struct omap_dss_device *dssdev)
+{
+ dssdev->driver->disable(dssdev);
+ omap_dispc_unregister_isr(framedone_callback, NULL,
+ DISPC_IRQ_FRAMEDONE);
+ omap_dss_stop_device(dssdev);
+}
+
+int rfbi_init_display(struct omap_dss_device *dssdev)
+{
+ dssdev->enable = rfbi_display_enable;
+ dssdev->disable = rfbi_display_disable;
+ dssdev->update = rfbi_display_update;
+ dssdev->sync = rfbi_display_sync;
+ dssdev->enable_te = rfbi_display_enable_te;
+
+ rfbi.dssdev[dssdev->phy.rfbi.channel] = dssdev;
+
+ dssdev->caps = OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE;
+
+ return 0;
+}
--- /dev/null
+/*
+ * linux/drivers/video/omap2/dss/sdi.c
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define DSS_SUBSYS_NAME "SDI"
+
+#include <linux/kernel.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+
+#include <plat/display.h>
+#include "dss.h"
+
+static struct {
+ bool skip_init;
+ bool update_enabled;
+} sdi;
+
+static void sdi_basic_init(void)
+{
+ dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_BYPASS);
+
+ dispc_set_lcd_display_type(OMAP_DSS_LCD_DISPLAY_TFT);
+ dispc_set_tft_data_lines(24);
+ dispc_lcd_enable_signal_polarity(1);
+}
+
+static int sdi_display_enable(struct omap_dss_device *dssdev)
+{
+ struct omap_video_timings *t = &dssdev->panel.timings;
+ struct dss_clock_info dss_cinfo;
+ struct dispc_clock_info dispc_cinfo;
+ u16 lck_div, pck_div;
+ unsigned long fck;
+ unsigned long pck;
+ int r;
+
+ r = omap_dss_start_device(dssdev);
+ if (r) {
+ DSSERR("failed to start device\n");
+ goto err0;
+ }
+
+ if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) {
+ DSSERR("dssdev already enabled\n");
+ r = -EINVAL;
+ goto err1;
+ }
+
+ /* In case of skip_init sdi_init has already enabled the clocks */
+ if (!sdi.skip_init)
+ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
+
+ sdi_basic_init();
+
+ /* 15.5.9.1.2 */
+ dssdev->panel.config |= OMAP_DSS_LCD_RF | OMAP_DSS_LCD_ONOFF;
+
+ dispc_set_pol_freq(dssdev->panel.config, dssdev->panel.acbi,
+ dssdev->panel.acb);
+
+ if (!sdi.skip_init) {
+ r = dss_calc_clock_div(1, t->pixel_clock * 1000,
+ &dss_cinfo, &dispc_cinfo);
+ } else {
+ r = dss_get_clock_div(&dss_cinfo);
+ r = dispc_get_clock_div(&dispc_cinfo);
+ }
+
+ if (r)
+ goto err2;
+
+ fck = dss_cinfo.fck;
+ lck_div = dispc_cinfo.lck_div;
+ pck_div = dispc_cinfo.pck_div;
+
+ pck = fck / lck_div / pck_div / 1000;
+
+ if (pck != t->pixel_clock) {
+ DSSWARN("Could not find exact pixel clock. Requested %d kHz, "
+ "got %lu kHz\n",
+ t->pixel_clock, pck);
+
+ t->pixel_clock = pck;
+ }
+
+
+ dispc_set_lcd_timings(t);
+
+ r = dss_set_clock_div(&dss_cinfo);
+ if (r)
+ goto err2;
+
+ r = dispc_set_clock_div(&dispc_cinfo);
+ if (r)
+ goto err2;
+
+ if (!sdi.skip_init) {
+ dss_sdi_init(dssdev->phy.sdi.datapairs);
+ r = dss_sdi_enable();
+ if (r)
+ goto err1;
+ mdelay(2);
+ }
+
+ dispc_enable_lcd_out(1);
+
+ if (dssdev->driver->enable) {
+ r = dssdev->driver->enable(dssdev);
+ if (r)
+ goto err3;
+ }
+
+ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+
+ sdi.skip_init = 0;
+
+ return 0;
+err3:
+ dispc_enable_lcd_out(0);
+err2:
+ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
+err1:
+ omap_dss_stop_device(dssdev);
+err0:
+ return r;
+}
+
+static int sdi_display_resume(struct omap_dss_device *dssdev);
+
+static void sdi_display_disable(struct omap_dss_device *dssdev)
+{
+ if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED)
+ return;
+
+ if (dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED)
+ if (sdi_display_resume(dssdev))
+ return;
+
+ if (dssdev->driver->disable)
+ dssdev->driver->disable(dssdev);
+
+ dispc_enable_lcd_out(0);
+
+ dss_sdi_disable();
+
+ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
+
+ dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
+
+ omap_dss_stop_device(dssdev);
+}
+
+static int sdi_display_suspend(struct omap_dss_device *dssdev)
+{
+ if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
+ return -EINVAL;
+
+ if (dssdev->driver->suspend)
+ dssdev->driver->suspend(dssdev);
+
+ dispc_enable_lcd_out(0);
+
+ dss_sdi_disable();
+
+ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
+
+ dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
+
+ return 0;
+}
+
+static int sdi_display_resume(struct omap_dss_device *dssdev)
+{
+ int r;
+
+ if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED)
+ return -EINVAL;
+
+ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
+
+ r = dss_sdi_enable();
+ if (r)
+ goto err;
+ mdelay(2);
+
+ dispc_enable_lcd_out(1);
+
+ if (dssdev->driver->resume)
+ dssdev->driver->resume(dssdev);
+
+ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+
+ return 0;
+err:
+ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
+ return r;
+}
+
+static int sdi_display_set_update_mode(struct omap_dss_device *dssdev,
+ enum omap_dss_update_mode mode)
+{
+ if (mode == OMAP_DSS_UPDATE_MANUAL)
+ return -EINVAL;
+
+ if (mode == OMAP_DSS_UPDATE_DISABLED) {
+ dispc_enable_lcd_out(0);
+ sdi.update_enabled = 0;
+ } else {
+ dispc_enable_lcd_out(1);
+ sdi.update_enabled = 1;
+ }
+
+ return 0;
+}
+
+static enum omap_dss_update_mode sdi_display_get_update_mode(
+ struct omap_dss_device *dssdev)
+{
+ return sdi.update_enabled ? OMAP_DSS_UPDATE_AUTO :
+ OMAP_DSS_UPDATE_DISABLED;
+}
+
+static void sdi_get_timings(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings)
+{
+ *timings = dssdev->panel.timings;
+}
+
+int sdi_init_display(struct omap_dss_device *dssdev)
+{
+ DSSDBG("SDI init\n");
+
+ dssdev->enable = sdi_display_enable;
+ dssdev->disable = sdi_display_disable;
+ dssdev->suspend = sdi_display_suspend;
+ dssdev->resume = sdi_display_resume;
+ dssdev->set_update_mode = sdi_display_set_update_mode;
+ dssdev->get_update_mode = sdi_display_get_update_mode;
+ dssdev->get_timings = sdi_get_timings;
+
+ return 0;
+}
+
+int sdi_init(bool skip_init)
+{
+ /* we store this for first display enable, then clear it */
+ sdi.skip_init = skip_init;
+
+ /*
+ * Enable clocks already here, otherwise there would be a toggle
+ * of them until sdi_display_enable is called.
+ */
+ if (skip_init)
+ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
+ return 0;
+}
+
+void sdi_exit(void)
+{
+}
--- /dev/null
+/*
+ * linux/drivers/video/omap2/dss/venc.c
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * VENC settings from TI's DSS driver
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define DSS_SUBSYS_NAME "VENC"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/mutex.h>
+#include <linux/completion.h>
+#include <linux/delay.h>
+#include <linux/string.h>
+#include <linux/seq_file.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+
+#include <plat/display.h>
+#include <plat/cpu.h>
+
+#include "dss.h"
+
+#define VENC_BASE 0x48050C00
+
+/* Venc registers */
+#define VENC_REV_ID 0x00
+#define VENC_STATUS 0x04
+#define VENC_F_CONTROL 0x08
+#define VENC_VIDOUT_CTRL 0x10
+#define VENC_SYNC_CTRL 0x14
+#define VENC_LLEN 0x1C
+#define VENC_FLENS 0x20
+#define VENC_HFLTR_CTRL 0x24
+#define VENC_CC_CARR_WSS_CARR 0x28
+#define VENC_C_PHASE 0x2C
+#define VENC_GAIN_U 0x30
+#define VENC_GAIN_V 0x34
+#define VENC_GAIN_Y 0x38
+#define VENC_BLACK_LEVEL 0x3C
+#define VENC_BLANK_LEVEL 0x40
+#define VENC_X_COLOR 0x44
+#define VENC_M_CONTROL 0x48
+#define VENC_BSTAMP_WSS_DATA 0x4C
+#define VENC_S_CARR 0x50
+#define VENC_LINE21 0x54
+#define VENC_LN_SEL 0x58
+#define VENC_L21__WC_CTL 0x5C
+#define VENC_HTRIGGER_VTRIGGER 0x60
+#define VENC_SAVID__EAVID 0x64
+#define VENC_FLEN__FAL 0x68
+#define VENC_LAL__PHASE_RESET 0x6C
+#define VENC_HS_INT_START_STOP_X 0x70
+#define VENC_HS_EXT_START_STOP_X 0x74
+#define VENC_VS_INT_START_X 0x78
+#define VENC_VS_INT_STOP_X__VS_INT_START_Y 0x7C
+#define VENC_VS_INT_STOP_Y__VS_EXT_START_X 0x80
+#define VENC_VS_EXT_STOP_X__VS_EXT_START_Y 0x84
+#define VENC_VS_EXT_STOP_Y 0x88
+#define VENC_AVID_START_STOP_X 0x90
+#define VENC_AVID_START_STOP_Y 0x94
+#define VENC_FID_INT_START_X__FID_INT_START_Y 0xA0
+#define VENC_FID_INT_OFFSET_Y__FID_EXT_START_X 0xA4
+#define VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y 0xA8
+#define VENC_TVDETGP_INT_START_STOP_X 0xB0
+#define VENC_TVDETGP_INT_START_STOP_Y 0xB4
+#define VENC_GEN_CTRL 0xB8
+#define VENC_OUTPUT_CONTROL 0xC4
+#define VENC_OUTPUT_TEST 0xC8
+#define VENC_DAC_B__DAC_C 0xC8
+
+struct venc_config {
+ u32 f_control;
+ u32 vidout_ctrl;
+ u32 sync_ctrl;
+ u32 llen;
+ u32 flens;
+ u32 hfltr_ctrl;
+ u32 cc_carr_wss_carr;
+ u32 c_phase;
+ u32 gain_u;
+ u32 gain_v;
+ u32 gain_y;
+ u32 black_level;
+ u32 blank_level;
+ u32 x_color;
+ u32 m_control;
+ u32 bstamp_wss_data;
+ u32 s_carr;
+ u32 line21;
+ u32 ln_sel;
+ u32 l21__wc_ctl;
+ u32 htrigger_vtrigger;
+ u32 savid__eavid;
+ u32 flen__fal;
+ u32 lal__phase_reset;
+ u32 hs_int_start_stop_x;
+ u32 hs_ext_start_stop_x;
+ u32 vs_int_start_x;
+ u32 vs_int_stop_x__vs_int_start_y;
+ u32 vs_int_stop_y__vs_ext_start_x;
+ u32 vs_ext_stop_x__vs_ext_start_y;
+ u32 vs_ext_stop_y;
+ u32 avid_start_stop_x;
+ u32 avid_start_stop_y;
+ u32 fid_int_start_x__fid_int_start_y;
+ u32 fid_int_offset_y__fid_ext_start_x;
+ u32 fid_ext_start_y__fid_ext_offset_y;
+ u32 tvdetgp_int_start_stop_x;
+ u32 tvdetgp_int_start_stop_y;
+ u32 gen_ctrl;
+};
+
+/* from TRM */
+static const struct venc_config venc_config_pal_trm = {
+ .f_control = 0,
+ .vidout_ctrl = 1,
+ .sync_ctrl = 0x40,
+ .llen = 0x35F, /* 863 */
+ .flens = 0x270, /* 624 */
+ .hfltr_ctrl = 0,
+ .cc_carr_wss_carr = 0x2F7225ED,
+ .c_phase = 0,
+ .gain_u = 0x111,
+ .gain_v = 0x181,
+ .gain_y = 0x140,
+ .black_level = 0x3B,
+ .blank_level = 0x3B,
+ .x_color = 0x7,
+ .m_control = 0x2,
+ .bstamp_wss_data = 0x3F,
+ .s_carr = 0x2A098ACB,
+ .line21 = 0,
+ .ln_sel = 0x01290015,
+ .l21__wc_ctl = 0x0000F603,
+ .htrigger_vtrigger = 0,
+
+ .savid__eavid = 0x06A70108,
+ .flen__fal = 0x00180270,
+ .lal__phase_reset = 0x00040135,
+ .hs_int_start_stop_x = 0x00880358,
+ .hs_ext_start_stop_x = 0x000F035F,
+ .vs_int_start_x = 0x01A70000,
+ .vs_int_stop_x__vs_int_start_y = 0x000001A7,
+ .vs_int_stop_y__vs_ext_start_x = 0x01AF0000,
+ .vs_ext_stop_x__vs_ext_start_y = 0x000101AF,
+ .vs_ext_stop_y = 0x00000025,
+ .avid_start_stop_x = 0x03530083,
+ .avid_start_stop_y = 0x026C002E,
+ .fid_int_start_x__fid_int_start_y = 0x0001008A,
+ .fid_int_offset_y__fid_ext_start_x = 0x002E0138,
+ .fid_ext_start_y__fid_ext_offset_y = 0x01380001,
+
+ .tvdetgp_int_start_stop_x = 0x00140001,
+ .tvdetgp_int_start_stop_y = 0x00010001,
+ .gen_ctrl = 0x00FF0000,
+};
+
+/* from TRM */
+static const struct venc_config venc_config_ntsc_trm = {
+ .f_control = 0,
+ .vidout_ctrl = 1,
+ .sync_ctrl = 0x8040,
+ .llen = 0x359,
+ .flens = 0x20C,
+ .hfltr_ctrl = 0,
+ .cc_carr_wss_carr = 0x043F2631,
+ .c_phase = 0,
+ .gain_u = 0x102,
+ .gain_v = 0x16C,
+ .gain_y = 0x12F,
+ .black_level = 0x43,
+ .blank_level = 0x38,
+ .x_color = 0x7,
+ .m_control = 0x1,
+ .bstamp_wss_data = 0x38,
+ .s_carr = 0x21F07C1F,
+ .line21 = 0,
+ .ln_sel = 0x01310011,
+ .l21__wc_ctl = 0x0000F003,
+ .htrigger_vtrigger = 0,
+
+ .savid__eavid = 0x069300F4,
+ .flen__fal = 0x0016020C,
+ .lal__phase_reset = 0x00060107,
+ .hs_int_start_stop_x = 0x008E0350,
+ .hs_ext_start_stop_x = 0x000F0359,
+ .vs_int_start_x = 0x01A00000,
+ .vs_int_stop_x__vs_int_start_y = 0x020701A0,
+ .vs_int_stop_y__vs_ext_start_x = 0x01AC0024,
+ .vs_ext_stop_x__vs_ext_start_y = 0x020D01AC,
+ .vs_ext_stop_y = 0x00000006,
+ .avid_start_stop_x = 0x03480078,
+ .avid_start_stop_y = 0x02060024,
+ .fid_int_start_x__fid_int_start_y = 0x0001008A,
+ .fid_int_offset_y__fid_ext_start_x = 0x01AC0106,
+ .fid_ext_start_y__fid_ext_offset_y = 0x01060006,
+
+ .tvdetgp_int_start_stop_x = 0x00140001,
+ .tvdetgp_int_start_stop_y = 0x00010001,
+ .gen_ctrl = 0x00F90000,
+};
+
+static const struct venc_config venc_config_pal_bdghi = {
+ .f_control = 0,
+ .vidout_ctrl = 0,
+ .sync_ctrl = 0,
+ .hfltr_ctrl = 0,
+ .x_color = 0,
+ .line21 = 0,
+ .ln_sel = 21,
+ .htrigger_vtrigger = 0,
+ .tvdetgp_int_start_stop_x = 0x00140001,
+ .tvdetgp_int_start_stop_y = 0x00010001,
+ .gen_ctrl = 0x00FB0000,
+
+ .llen = 864-1,
+ .flens = 625-1,
+ .cc_carr_wss_carr = 0x2F7625ED,
+ .c_phase = 0xDF,
+ .gain_u = 0x111,
+ .gain_v = 0x181,
+ .gain_y = 0x140,
+ .black_level = 0x3e,
+ .blank_level = 0x3e,
+ .m_control = 0<<2 | 1<<1,
+ .bstamp_wss_data = 0x42,
+ .s_carr = 0x2a098acb,
+ .l21__wc_ctl = 0<<13 | 0x16<<8 | 0<<0,
+ .savid__eavid = 0x06A70108,
+ .flen__fal = 23<<16 | 624<<0,
+ .lal__phase_reset = 2<<17 | 310<<0,
+ .hs_int_start_stop_x = 0x00920358,
+ .hs_ext_start_stop_x = 0x000F035F,
+ .vs_int_start_x = 0x1a7<<16,
+ .vs_int_stop_x__vs_int_start_y = 0x000601A7,
+ .vs_int_stop_y__vs_ext_start_x = 0x01AF0036,
+ .vs_ext_stop_x__vs_ext_start_y = 0x27101af,
+ .vs_ext_stop_y = 0x05,
+ .avid_start_stop_x = 0x03530082,
+ .avid_start_stop_y = 0x0270002E,
+ .fid_int_start_x__fid_int_start_y = 0x0005008A,
+ .fid_int_offset_y__fid_ext_start_x = 0x002E0138,
+ .fid_ext_start_y__fid_ext_offset_y = 0x01380005,
+};
+
+const struct omap_video_timings omap_dss_pal_timings = {
+ .x_res = 720,
+ .y_res = 574,
+ .pixel_clock = 13500,
+ .hsw = 64,
+ .hfp = 12,
+ .hbp = 68,
+ .vsw = 5,
+ .vfp = 5,
+ .vbp = 41,
+};
+EXPORT_SYMBOL(omap_dss_pal_timings);
+
+const struct omap_video_timings omap_dss_ntsc_timings = {
+ .x_res = 720,
+ .y_res = 482,
+ .pixel_clock = 13500,
+ .hsw = 64,
+ .hfp = 16,
+ .hbp = 58,
+ .vsw = 6,
+ .vfp = 6,
+ .vbp = 31,
+};
+EXPORT_SYMBOL(omap_dss_ntsc_timings);
+
+static struct {
+ void __iomem *base;
+ struct mutex venc_lock;
+ u32 wss_data;
+ struct regulator *vdda_dac_reg;
+} venc;
+
+static inline void venc_write_reg(int idx, u32 val)
+{
+ __raw_writel(val, venc.base + idx);
+}
+
+static inline u32 venc_read_reg(int idx)
+{
+ u32 l = __raw_readl(venc.base + idx);
+ return l;
+}
+
+static void venc_write_config(const struct venc_config *config)
+{
+ DSSDBG("write venc conf\n");
+
+ venc_write_reg(VENC_LLEN, config->llen);
+ venc_write_reg(VENC_FLENS, config->flens);
+ venc_write_reg(VENC_CC_CARR_WSS_CARR, config->cc_carr_wss_carr);
+ venc_write_reg(VENC_C_PHASE, config->c_phase);
+ venc_write_reg(VENC_GAIN_U, config->gain_u);
+ venc_write_reg(VENC_GAIN_V, config->gain_v);
+ venc_write_reg(VENC_GAIN_Y, config->gain_y);
+ venc_write_reg(VENC_BLACK_LEVEL, config->black_level);
+ venc_write_reg(VENC_BLANK_LEVEL, config->blank_level);
+ venc_write_reg(VENC_M_CONTROL, config->m_control);
+ venc_write_reg(VENC_BSTAMP_WSS_DATA, config->bstamp_wss_data |
+ venc.wss_data);
+ venc_write_reg(VENC_S_CARR, config->s_carr);
+ venc_write_reg(VENC_L21__WC_CTL, config->l21__wc_ctl);
+ venc_write_reg(VENC_SAVID__EAVID, config->savid__eavid);
+ venc_write_reg(VENC_FLEN__FAL, config->flen__fal);
+ venc_write_reg(VENC_LAL__PHASE_RESET, config->lal__phase_reset);
+ venc_write_reg(VENC_HS_INT_START_STOP_X, config->hs_int_start_stop_x);
+ venc_write_reg(VENC_HS_EXT_START_STOP_X, config->hs_ext_start_stop_x);
+ venc_write_reg(VENC_VS_INT_START_X, config->vs_int_start_x);
+ venc_write_reg(VENC_VS_INT_STOP_X__VS_INT_START_Y,
+ config->vs_int_stop_x__vs_int_start_y);
+ venc_write_reg(VENC_VS_INT_STOP_Y__VS_EXT_START_X,
+ config->vs_int_stop_y__vs_ext_start_x);
+ venc_write_reg(VENC_VS_EXT_STOP_X__VS_EXT_START_Y,
+ config->vs_ext_stop_x__vs_ext_start_y);
+ venc_write_reg(VENC_VS_EXT_STOP_Y, config->vs_ext_stop_y);
+ venc_write_reg(VENC_AVID_START_STOP_X, config->avid_start_stop_x);
+ venc_write_reg(VENC_AVID_START_STOP_Y, config->avid_start_stop_y);
+ venc_write_reg(VENC_FID_INT_START_X__FID_INT_START_Y,
+ config->fid_int_start_x__fid_int_start_y);
+ venc_write_reg(VENC_FID_INT_OFFSET_Y__FID_EXT_START_X,
+ config->fid_int_offset_y__fid_ext_start_x);
+ venc_write_reg(VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y,
+ config->fid_ext_start_y__fid_ext_offset_y);
+
+ venc_write_reg(VENC_DAC_B__DAC_C, venc_read_reg(VENC_DAC_B__DAC_C));
+ venc_write_reg(VENC_VIDOUT_CTRL, config->vidout_ctrl);
+ venc_write_reg(VENC_HFLTR_CTRL, config->hfltr_ctrl);
+ venc_write_reg(VENC_X_COLOR, config->x_color);
+ venc_write_reg(VENC_LINE21, config->line21);
+ venc_write_reg(VENC_LN_SEL, config->ln_sel);
+ venc_write_reg(VENC_HTRIGGER_VTRIGGER, config->htrigger_vtrigger);
+ venc_write_reg(VENC_TVDETGP_INT_START_STOP_X,
+ config->tvdetgp_int_start_stop_x);
+ venc_write_reg(VENC_TVDETGP_INT_START_STOP_Y,
+ config->tvdetgp_int_start_stop_y);
+ venc_write_reg(VENC_GEN_CTRL, config->gen_ctrl);
+ venc_write_reg(VENC_F_CONTROL, config->f_control);
+ venc_write_reg(VENC_SYNC_CTRL, config->sync_ctrl);
+}
+
+static void venc_reset(void)
+{
+ int t = 1000;
+
+ venc_write_reg(VENC_F_CONTROL, 1<<8);
+ while (venc_read_reg(VENC_F_CONTROL) & (1<<8)) {
+ if (--t == 0) {
+ DSSERR("Failed to reset venc\n");
+ return;
+ }
+ }
+
+ /* the magical sleep that makes things work */
+ msleep(20);
+}
+
+static void venc_enable_clocks(int enable)
+{
+ if (enable)
+ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_54M |
+ DSS_CLK_96M);
+ else
+ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_54M |
+ DSS_CLK_96M);
+}
+
+static const struct venc_config *venc_timings_to_config(
+ struct omap_video_timings *timings)
+{
+ if (memcmp(&omap_dss_pal_timings, timings, sizeof(*timings)) == 0)
+ return &venc_config_pal_trm;
+
+ if (memcmp(&omap_dss_ntsc_timings, timings, sizeof(*timings)) == 0)
+ return &venc_config_ntsc_trm;
+
+ BUG();
+}
+
+
+
+
+
+/* driver */
+static int venc_panel_probe(struct omap_dss_device *dssdev)
+{
+ dssdev->panel.timings = omap_dss_pal_timings;
+
+ return 0;
+}
+
+static void venc_panel_remove(struct omap_dss_device *dssdev)
+{
+}
+
+static int venc_panel_enable(struct omap_dss_device *dssdev)
+{
+ int r = 0;
+
+ /* wait couple of vsyncs until enabling the LCD */
+ msleep(50);
+
+ if (dssdev->platform_enable)
+ r = dssdev->platform_enable(dssdev);
+
+ return r;
+}
+
+static void venc_panel_disable(struct omap_dss_device *dssdev)
+{
+ if (dssdev->platform_disable)
+ dssdev->platform_disable(dssdev);
+
+ /* wait at least 5 vsyncs after disabling the LCD */
+
+ msleep(100);
+}
+
+static int venc_panel_suspend(struct omap_dss_device *dssdev)
+{
+ venc_panel_disable(dssdev);
+ return 0;
+}
+
+static int venc_panel_resume(struct omap_dss_device *dssdev)
+{
+ return venc_panel_enable(dssdev);
+}
+
+static struct omap_dss_driver venc_driver = {
+ .probe = venc_panel_probe,
+ .remove = venc_panel_remove,
+
+ .enable = venc_panel_enable,
+ .disable = venc_panel_disable,
+ .suspend = venc_panel_suspend,
+ .resume = venc_panel_resume,
+
+ .driver = {
+ .name = "venc",
+ .owner = THIS_MODULE,
+ },
+};
+/* driver end */
+
+
+
+int venc_init(struct platform_device *pdev)
+{
+ u8 rev_id;
+
+ mutex_init(&venc.venc_lock);
+
+ venc.wss_data = 0;
+
+ venc.base = ioremap(VENC_BASE, SZ_1K);
+ if (!venc.base) {
+ DSSERR("can't ioremap VENC\n");
+ return -ENOMEM;
+ }
+
+ venc.vdda_dac_reg = regulator_get(&pdev->dev, "vdda_dac");
+ if (IS_ERR(venc.vdda_dac_reg)) {
+ iounmap(venc.base);
+ DSSERR("can't get VDDA_DAC regulator\n");
+ return PTR_ERR(venc.vdda_dac_reg);
+ }
+
+ venc_enable_clocks(1);
+
+ rev_id = (u8)(venc_read_reg(VENC_REV_ID) & 0xff);
+ printk(KERN_INFO "OMAP VENC rev %d\n", rev_id);
+
+ venc_enable_clocks(0);
+
+ return omap_dss_register_driver(&venc_driver);
+}
+
+void venc_exit(void)
+{
+ omap_dss_unregister_driver(&venc_driver);
+
+ regulator_put(venc.vdda_dac_reg);
+
+ iounmap(venc.base);
+}
+
+static void venc_power_on(struct omap_dss_device *dssdev)
+{
+ u32 l;
+
+ venc_enable_clocks(1);
+
+ venc_reset();
+ venc_write_config(venc_timings_to_config(&dssdev->panel.timings));
+
+ dss_set_venc_output(dssdev->phy.venc.type);
+ dss_set_dac_pwrdn_bgz(1);
+
+ l = 0;
+
+ if (dssdev->phy.venc.type == OMAP_DSS_VENC_TYPE_COMPOSITE)
+ l |= 1 << 1;
+ else /* S-Video */
+ l |= (1 << 0) | (1 << 2);
+
+ if (dssdev->phy.venc.invert_polarity == false)
+ l |= 1 << 3;
+
+ venc_write_reg(VENC_OUTPUT_CONTROL, l);
+
+ dispc_set_digit_size(dssdev->panel.timings.x_res,
+ dssdev->panel.timings.y_res/2);
+
+ regulator_enable(venc.vdda_dac_reg);
+
+ if (dssdev->platform_enable)
+ dssdev->platform_enable(dssdev);
+
+ dispc_enable_digit_out(1);
+}
+
+static void venc_power_off(struct omap_dss_device *dssdev)
+{
+ venc_write_reg(VENC_OUTPUT_CONTROL, 0);
+ dss_set_dac_pwrdn_bgz(0);
+
+ dispc_enable_digit_out(0);
+
+ if (dssdev->platform_disable)
+ dssdev->platform_disable(dssdev);
+
+ regulator_disable(venc.vdda_dac_reg);
+
+ venc_enable_clocks(0);
+}
+
+static int venc_enable_display(struct omap_dss_device *dssdev)
+{
+ int r = 0;
+
+ DSSDBG("venc_enable_display\n");
+
+ mutex_lock(&venc.venc_lock);
+
+ if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) {
+ r = -EINVAL;
+ goto err;
+ }
+
+ venc_power_on(dssdev);
+
+ venc.wss_data = 0;
+
+ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+err:
+ mutex_unlock(&venc.venc_lock);
+
+ return r;
+}
+
+static void venc_disable_display(struct omap_dss_device *dssdev)
+{
+ DSSDBG("venc_disable_display\n");
+
+ mutex_lock(&venc.venc_lock);
+
+ if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED)
+ goto end;
+
+ if (dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED) {
+ /* suspended is the same as disabled with venc */
+ dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
+ goto end;
+ }
+
+ venc_power_off(dssdev);
+
+ dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
+end:
+ mutex_unlock(&venc.venc_lock);
+}
+
+static int venc_display_suspend(struct omap_dss_device *dssdev)
+{
+ int r = 0;
+
+ DSSDBG("venc_display_suspend\n");
+
+ mutex_lock(&venc.venc_lock);
+
+ if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) {
+ r = -EINVAL;
+ goto err;
+ }
+
+ venc_power_off(dssdev);
+
+ dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
+err:
+ mutex_unlock(&venc.venc_lock);
+
+ return r;
+}
+
+static int venc_display_resume(struct omap_dss_device *dssdev)
+{
+ int r = 0;
+
+ DSSDBG("venc_display_resume\n");
+
+ mutex_lock(&venc.venc_lock);
+
+ if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED) {
+ r = -EINVAL;
+ goto err;
+ }
+
+ venc_power_on(dssdev);
+
+ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+err:
+ mutex_unlock(&venc.venc_lock);
+
+ return r;
+}
+
+static void venc_get_timings(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings)
+{
+ *timings = dssdev->panel.timings;
+}
+
+static void venc_set_timings(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings)
+{
+ DSSDBG("venc_set_timings\n");
+
+ /* Reset WSS data when the TV standard changes. */
+ if (memcmp(&dssdev->panel.timings, timings, sizeof(*timings)))
+ venc.wss_data = 0;
+
+ dssdev->panel.timings = *timings;
+ if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) {
+ /* turn the venc off and on to get new timings to use */
+ venc_disable_display(dssdev);
+ venc_enable_display(dssdev);
+ }
+}
+
+static int venc_check_timings(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings)
+{
+ DSSDBG("venc_check_timings\n");
+
+ if (memcmp(&omap_dss_pal_timings, timings, sizeof(*timings)) == 0)
+ return 0;
+
+ if (memcmp(&omap_dss_ntsc_timings, timings, sizeof(*timings)) == 0)
+ return 0;
+
+ return -EINVAL;
+}
+
+static u32 venc_get_wss(struct omap_dss_device *dssdev)
+{
+ /* Invert due to VENC_L21_WC_CTL:INV=1 */
+ return (venc.wss_data >> 8) ^ 0xfffff;
+}
+
+static int venc_set_wss(struct omap_dss_device *dssdev, u32 wss)
+{
+ const struct venc_config *config;
+
+ DSSDBG("venc_set_wss\n");
+
+ mutex_lock(&venc.venc_lock);
+
+ config = venc_timings_to_config(&dssdev->panel.timings);
+
+ /* Invert due to VENC_L21_WC_CTL:INV=1 */
+ venc.wss_data = (wss ^ 0xfffff) << 8;
+
+ venc_enable_clocks(1);
+
+ venc_write_reg(VENC_BSTAMP_WSS_DATA, config->bstamp_wss_data |
+ venc.wss_data);
+
+ venc_enable_clocks(0);
+
+ mutex_unlock(&venc.venc_lock);
+
+ return 0;
+}
+
+static enum omap_dss_update_mode venc_display_get_update_mode(
+ struct omap_dss_device *dssdev)
+{
+ if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
+ return OMAP_DSS_UPDATE_AUTO;
+ else
+ return OMAP_DSS_UPDATE_DISABLED;
+}
+
+int venc_init_display(struct omap_dss_device *dssdev)
+{
+ DSSDBG("init_display\n");
+
+ dssdev->enable = venc_enable_display;
+ dssdev->disable = venc_disable_display;
+ dssdev->suspend = venc_display_suspend;
+ dssdev->resume = venc_display_resume;
+ dssdev->get_timings = venc_get_timings;
+ dssdev->set_timings = venc_set_timings;
+ dssdev->check_timings = venc_check_timings;
+ dssdev->get_wss = venc_get_wss;
+ dssdev->set_wss = venc_set_wss;
+ dssdev->get_update_mode = venc_display_get_update_mode;
+
+ return 0;
+}
+
+void venc_dump_regs(struct seq_file *s)
+{
+#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, venc_read_reg(r))
+
+ venc_enable_clocks(1);
+
+ DUMPREG(VENC_F_CONTROL);
+ DUMPREG(VENC_VIDOUT_CTRL);
+ DUMPREG(VENC_SYNC_CTRL);
+ DUMPREG(VENC_LLEN);
+ DUMPREG(VENC_FLENS);
+ DUMPREG(VENC_HFLTR_CTRL);
+ DUMPREG(VENC_CC_CARR_WSS_CARR);
+ DUMPREG(VENC_C_PHASE);
+ DUMPREG(VENC_GAIN_U);
+ DUMPREG(VENC_GAIN_V);
+ DUMPREG(VENC_GAIN_Y);
+ DUMPREG(VENC_BLACK_LEVEL);
+ DUMPREG(VENC_BLANK_LEVEL);
+ DUMPREG(VENC_X_COLOR);
+ DUMPREG(VENC_M_CONTROL);
+ DUMPREG(VENC_BSTAMP_WSS_DATA);
+ DUMPREG(VENC_S_CARR);
+ DUMPREG(VENC_LINE21);
+ DUMPREG(VENC_LN_SEL);
+ DUMPREG(VENC_L21__WC_CTL);
+ DUMPREG(VENC_HTRIGGER_VTRIGGER);
+ DUMPREG(VENC_SAVID__EAVID);
+ DUMPREG(VENC_FLEN__FAL);
+ DUMPREG(VENC_LAL__PHASE_RESET);
+ DUMPREG(VENC_HS_INT_START_STOP_X);
+ DUMPREG(VENC_HS_EXT_START_STOP_X);
+ DUMPREG(VENC_VS_INT_START_X);
+ DUMPREG(VENC_VS_INT_STOP_X__VS_INT_START_Y);
+ DUMPREG(VENC_VS_INT_STOP_Y__VS_EXT_START_X);
+ DUMPREG(VENC_VS_EXT_STOP_X__VS_EXT_START_Y);
+ DUMPREG(VENC_VS_EXT_STOP_Y);
+ DUMPREG(VENC_AVID_START_STOP_X);
+ DUMPREG(VENC_AVID_START_STOP_Y);
+ DUMPREG(VENC_FID_INT_START_X__FID_INT_START_Y);
+ DUMPREG(VENC_FID_INT_OFFSET_Y__FID_EXT_START_X);
+ DUMPREG(VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y);
+ DUMPREG(VENC_TVDETGP_INT_START_STOP_X);
+ DUMPREG(VENC_TVDETGP_INT_START_STOP_Y);
+ DUMPREG(VENC_GEN_CTRL);
+ DUMPREG(VENC_OUTPUT_CONTROL);
+ DUMPREG(VENC_OUTPUT_TEST);
+
+ venc_enable_clocks(0);
+
+#undef DUMPREG
+}
--- /dev/null
+menuconfig FB_OMAP2
+ tristate "OMAP2/3 frame buffer support (EXPERIMENTAL)"
+ depends on FB && OMAP2_DSS
+
+ select OMAP2_VRAM
+ select OMAP2_VRFB
+ select FB_CFB_FILLRECT
+ select FB_CFB_COPYAREA
+ select FB_CFB_IMAGEBLIT
+ help
+ Frame buffer driver for OMAP2/3 based boards.
+
+config FB_OMAP2_DEBUG_SUPPORT
+ bool "Debug support for OMAP2/3 FB"
+ default y
+ depends on FB_OMAP2
+ help
+ Support for debug output. You have to enable the actual printing
+ with debug module parameter.
+
+config FB_OMAP2_FORCE_AUTO_UPDATE
+ bool "Force main display to automatic update mode"
+ depends on FB_OMAP2
+ help
+ Forces main display to automatic update mode (if possible),
+ and also enables tearsync (if possible). By default
+ displays that support manual update are started in manual
+ update mode.
+
+config FB_OMAP2_NUM_FBS
+ int "Number of framebuffers"
+ range 1 10
+ default 3
+ depends on FB_OMAP2
+ help
+ Select the number of framebuffers created. OMAP2/3 has 3 overlays
+ so normally this would be 3.
--- /dev/null
+obj-$(CONFIG_FB_OMAP2) += omapfb.o
+omapfb-y := omapfb-main.o omapfb-sysfs.o omapfb-ioctl.o
--- /dev/null
+/*
+ * linux/drivers/video/omap2/omapfb-ioctl.c
+ *
+ * Copyright (C) 2008 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * Some code and ideas taken from drivers/video/omap/ driver
+ * by Imre Deak.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/fb.h>
+#include <linux/device.h>
+#include <linux/uaccess.h>
+#include <linux/platform_device.h>
+#include <linux/mm.h>
+#include <linux/omapfb.h>
+#include <linux/vmalloc.h>
+
+#include <plat/display.h>
+#include <plat/vrfb.h>
+#include <plat/vram.h>
+
+#include "omapfb.h"
+
+static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_device *fbdev = ofbi->fbdev;
+ struct omap_overlay *ovl;
+ struct omap_overlay_info info;
+ int r = 0;
+
+ DBG("omapfb_setup_plane\n");
+
+ if (ofbi->num_overlays != 1) {
+ r = -EINVAL;
+ goto out;
+ }
+
+ /* XXX uses only the first overlay */
+ ovl = ofbi->overlays[0];
+
+ if (pi->enabled && !ofbi->region.size) {
+ /*
+ * This plane's memory was freed, can't enable it
+ * until it's reallocated.
+ */
+ r = -EINVAL;
+ goto out;
+ }
+
+ ovl->get_overlay_info(ovl, &info);
+
+ info.pos_x = pi->pos_x;
+ info.pos_y = pi->pos_y;
+ info.out_width = pi->out_width;
+ info.out_height = pi->out_height;
+ info.enabled = pi->enabled;
+
+ r = ovl->set_overlay_info(ovl, &info);
+ if (r)
+ goto out;
+
+ if (ovl->manager) {
+ r = ovl->manager->apply(ovl->manager);
+ if (r)
+ goto out;
+ }
+
+out:
+ if (r)
+ dev_err(fbdev->dev, "setup_plane failed\n");
+ return r;
+}
+
+static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+
+ if (ofbi->num_overlays != 1) {
+ memset(pi, 0, sizeof(*pi));
+ } else {
+ struct omap_overlay_info *ovli;
+ struct omap_overlay *ovl;
+
+ ovl = ofbi->overlays[0];
+ ovli = &ovl->info;
+
+ pi->pos_x = ovli->pos_x;
+ pi->pos_y = ovli->pos_y;
+ pi->enabled = ovli->enabled;
+ pi->channel_out = 0; /* xxx */
+ pi->mirror = 0;
+ pi->out_width = ovli->out_width;
+ pi->out_height = ovli->out_height;
+ }
+
+ return 0;
+}
+
+static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_device *fbdev = ofbi->fbdev;
+ struct omapfb2_mem_region *rg;
+ int r, i;
+ size_t size;
+
+ if (mi->type > OMAPFB_MEMTYPE_MAX)
+ return -EINVAL;
+
+ size = PAGE_ALIGN(mi->size);
+
+ rg = &ofbi->region;
+
+ for (i = 0; i < ofbi->num_overlays; i++) {
+ if (ofbi->overlays[i]->info.enabled)
+ return -EBUSY;
+ }
+
+ if (rg->size != size || rg->type != mi->type) {
+ r = omapfb_realloc_fbmem(fbi, size, mi->type);
+ if (r) {
+ dev_err(fbdev->dev, "realloc fbmem failed\n");
+ return r;
+ }
+ }
+
+ return 0;
+}
+
+static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_mem_region *rg;
+
+ rg = &ofbi->region;
+ memset(mi, 0, sizeof(*mi));
+
+ mi->size = rg->size;
+ mi->type = rg->type;
+
+ return 0;
+}
+
+static int omapfb_update_window_nolock(struct fb_info *fbi,
+ u32 x, u32 y, u32 w, u32 h)
+{
+ struct omap_dss_device *display = fb2display(fbi);
+ u16 dw, dh;
+
+ if (!display)
+ return 0;
+
+ if (w == 0 || h == 0)
+ return 0;
+
+ display->get_resolution(display, &dw, &dh);
+
+ if (x + w > dw || y + h > dh)
+ return -EINVAL;
+
+ return display->update(display, x, y, w, h);
+}
+
+/* This function is exported for SGX driver use */
+int omapfb_update_window(struct fb_info *fbi,
+ u32 x, u32 y, u32 w, u32 h)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_device *fbdev = ofbi->fbdev;
+ int r;
+
+ omapfb_lock(fbdev);
+ lock_fb_info(fbi);
+
+ r = omapfb_update_window_nolock(fbi, x, y, w, h);
+
+ unlock_fb_info(fbi);
+ omapfb_unlock(fbdev);
+
+ return r;
+}
+EXPORT_SYMBOL(omapfb_update_window);
+
+static int omapfb_set_update_mode(struct fb_info *fbi,
+ enum omapfb_update_mode mode)
+{
+ struct omap_dss_device *display = fb2display(fbi);
+ enum omap_dss_update_mode um;
+ int r;
+
+ if (!display || !display->set_update_mode)
+ return -EINVAL;
+
+ switch (mode) {
+ case OMAPFB_UPDATE_DISABLED:
+ um = OMAP_DSS_UPDATE_DISABLED;
+ break;
+
+ case OMAPFB_AUTO_UPDATE:
+ um = OMAP_DSS_UPDATE_AUTO;
+ break;
+
+ case OMAPFB_MANUAL_UPDATE:
+ um = OMAP_DSS_UPDATE_MANUAL;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ r = display->set_update_mode(display, um);
+
+ return r;
+}
+
+static int omapfb_get_update_mode(struct fb_info *fbi,
+ enum omapfb_update_mode *mode)
+{
+ struct omap_dss_device *display = fb2display(fbi);
+ enum omap_dss_update_mode m;
+
+ if (!display || !display->get_update_mode)
+ return -EINVAL;
+
+ m = display->get_update_mode(display);
+
+ switch (m) {
+ case OMAP_DSS_UPDATE_DISABLED:
+ *mode = OMAPFB_UPDATE_DISABLED;
+ break;
+ case OMAP_DSS_UPDATE_AUTO:
+ *mode = OMAPFB_AUTO_UPDATE;
+ break;
+ case OMAP_DSS_UPDATE_MANUAL:
+ *mode = OMAPFB_MANUAL_UPDATE;
+ break;
+ default:
+ BUG();
+ }
+
+ return 0;
+}
+
+/* XXX this color key handling is a hack... */
+static struct omapfb_color_key omapfb_color_keys[2];
+
+static int _omapfb_set_color_key(struct omap_overlay_manager *mgr,
+ struct omapfb_color_key *ck)
+{
+ struct omap_overlay_manager_info info;
+ enum omap_dss_trans_key_type kt;
+ int r;
+
+ mgr->get_manager_info(mgr, &info);
+
+ if (ck->key_type == OMAPFB_COLOR_KEY_DISABLED) {
+ info.trans_enabled = false;
+ omapfb_color_keys[mgr->id] = *ck;
+
+ r = mgr->set_manager_info(mgr, &info);
+ if (r)
+ return r;
+
+ r = mgr->apply(mgr);
+
+ return r;
+ }
+
+ switch (ck->key_type) {
+ case OMAPFB_COLOR_KEY_GFX_DST:
+ kt = OMAP_DSS_COLOR_KEY_GFX_DST;
+ break;
+ case OMAPFB_COLOR_KEY_VID_SRC:
+ kt = OMAP_DSS_COLOR_KEY_VID_SRC;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ info.default_color = ck->background;
+ info.trans_key = ck->trans_key;
+ info.trans_key_type = kt;
+ info.trans_enabled = true;
+
+ omapfb_color_keys[mgr->id] = *ck;
+
+ r = mgr->set_manager_info(mgr, &info);
+ if (r)
+ return r;
+
+ r = mgr->apply(mgr);
+
+ return r;
+}
+
+static int omapfb_set_color_key(struct fb_info *fbi,
+ struct omapfb_color_key *ck)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_device *fbdev = ofbi->fbdev;
+ int r;
+ int i;
+ struct omap_overlay_manager *mgr = NULL;
+
+ omapfb_lock(fbdev);
+
+ for (i = 0; i < ofbi->num_overlays; i++) {
+ if (ofbi->overlays[i]->manager) {
+ mgr = ofbi->overlays[i]->manager;
+ break;
+ }
+ }
+
+ if (!mgr) {
+ r = -EINVAL;
+ goto err;
+ }
+
+ r = _omapfb_set_color_key(mgr, ck);
+err:
+ omapfb_unlock(fbdev);
+
+ return r;
+}
+
+static int omapfb_get_color_key(struct fb_info *fbi,
+ struct omapfb_color_key *ck)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_device *fbdev = ofbi->fbdev;
+ struct omap_overlay_manager *mgr = NULL;
+ int r = 0;
+ int i;
+
+ omapfb_lock(fbdev);
+
+ for (i = 0; i < ofbi->num_overlays; i++) {
+ if (ofbi->overlays[i]->manager) {
+ mgr = ofbi->overlays[i]->manager;
+ break;
+ }
+ }
+
+ if (!mgr) {
+ r = -EINVAL;
+ goto err;
+ }
+
+ *ck = omapfb_color_keys[mgr->id];
+err:
+ omapfb_unlock(fbdev);
+
+ return r;
+}
+
+static int omapfb_memory_read(struct fb_info *fbi,
+ struct omapfb_memory_read *mr)
+{
+ struct omap_dss_device *display = fb2display(fbi);
+ void *buf;
+ int r;
+
+ if (!display || !display->memory_read)
+ return -ENOENT;
+
+ if (!access_ok(VERIFY_WRITE, mr->buffer, mr->buffer_size))
+ return -EFAULT;
+
+ if (mr->w * mr->h * 3 > mr->buffer_size)
+ return -EINVAL;
+
+ buf = vmalloc(mr->buffer_size);
+ if (!buf) {
+ DBG("vmalloc failed\n");
+ return -ENOMEM;
+ }
+
+ r = display->memory_read(display, buf, mr->buffer_size,
+ mr->x, mr->y, mr->w, mr->h);
+
+ if (r > 0) {
+ if (copy_to_user(mr->buffer, buf, mr->buffer_size))
+ r = -EFAULT;
+ }
+
+ vfree(buf);
+
+ return r;
+}
+
+static int omapfb_get_ovl_colormode(struct omapfb2_device *fbdev,
+ struct omapfb_ovl_colormode *mode)
+{
+ int ovl_idx = mode->overlay_idx;
+ int mode_idx = mode->mode_idx;
+ struct omap_overlay *ovl;
+ enum omap_color_mode supported_modes;
+ struct fb_var_screeninfo var;
+ int i;
+
+ if (ovl_idx >= fbdev->num_overlays)
+ return -ENODEV;
+ ovl = fbdev->overlays[ovl_idx];
+ supported_modes = ovl->supported_modes;
+
+ mode_idx = mode->mode_idx;
+
+ for (i = 0; i < sizeof(supported_modes) * 8; i++) {
+ if (!(supported_modes & (1 << i)))
+ continue;
+ /*
+ * It's possible that the FB doesn't support a mode
+ * that is supported by the overlay, so call the
+ * following here.
+ */
+ if (dss_mode_to_fb_mode(1 << i, &var) < 0)
+ continue;
+
+ mode_idx--;
+ if (mode_idx < 0)
+ break;
+ }
+
+ if (i == sizeof(supported_modes) * 8)
+ return -ENOENT;
+
+ mode->bits_per_pixel = var.bits_per_pixel;
+ mode->nonstd = var.nonstd;
+ mode->red = var.red;
+ mode->green = var.green;
+ mode->blue = var.blue;
+ mode->transp = var.transp;
+
+ return 0;
+}
+
+static int omapfb_wait_for_go(struct fb_info *fbi)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ int r = 0;
+ int i;
+
+ for (i = 0; i < ofbi->num_overlays; ++i) {
+ struct omap_overlay *ovl = ofbi->overlays[i];
+ r = ovl->wait_for_go(ovl);
+ if (r)
+ break;
+ }
+
+ return r;
+}
+
+int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_device *fbdev = ofbi->fbdev;
+ struct omap_dss_device *display = fb2display(fbi);
+
+ union {
+ struct omapfb_update_window_old uwnd_o;
+ struct omapfb_update_window uwnd;
+ struct omapfb_plane_info plane_info;
+ struct omapfb_caps caps;
+ struct omapfb_mem_info mem_info;
+ struct omapfb_color_key color_key;
+ struct omapfb_ovl_colormode ovl_colormode;
+ enum omapfb_update_mode update_mode;
+ int test_num;
+ struct omapfb_memory_read memory_read;
+ struct omapfb_vram_info vram_info;
+ struct omapfb_tearsync_info tearsync_info;
+ } p;
+
+ int r = 0;
+
+ switch (cmd) {
+ case OMAPFB_SYNC_GFX:
+ DBG("ioctl SYNC_GFX\n");
+ if (!display || !display->sync) {
+ /* DSS1 never returns an error here, so we neither */
+ /*r = -EINVAL;*/
+ break;
+ }
+
+ r = display->sync(display);
+ break;
+
+ case OMAPFB_UPDATE_WINDOW_OLD:
+ DBG("ioctl UPDATE_WINDOW_OLD\n");
+ if (!display || !display->update) {
+ r = -EINVAL;
+ break;
+ }
+
+ if (copy_from_user(&p.uwnd_o,
+ (void __user *)arg,
+ sizeof(p.uwnd_o))) {
+ r = -EFAULT;
+ break;
+ }
+
+ r = omapfb_update_window_nolock(fbi, p.uwnd_o.x, p.uwnd_o.y,
+ p.uwnd_o.width, p.uwnd_o.height);
+ break;
+
+ case OMAPFB_UPDATE_WINDOW:
+ DBG("ioctl UPDATE_WINDOW\n");
+ if (!display || !display->update) {
+ r = -EINVAL;
+ break;
+ }
+
+ if (copy_from_user(&p.uwnd, (void __user *)arg,
+ sizeof(p.uwnd))) {
+ r = -EFAULT;
+ break;
+ }
+
+ r = omapfb_update_window_nolock(fbi, p.uwnd.x, p.uwnd.y,
+ p.uwnd.width, p.uwnd.height);
+ break;
+
+ case OMAPFB_SETUP_PLANE:
+ DBG("ioctl SETUP_PLANE\n");
+ if (copy_from_user(&p.plane_info, (void __user *)arg,
+ sizeof(p.plane_info)))
+ r = -EFAULT;
+ else
+ r = omapfb_setup_plane(fbi, &p.plane_info);
+ break;
+
+ case OMAPFB_QUERY_PLANE:
+ DBG("ioctl QUERY_PLANE\n");
+ r = omapfb_query_plane(fbi, &p.plane_info);
+ if (r < 0)
+ break;
+ if (copy_to_user((void __user *)arg, &p.plane_info,
+ sizeof(p.plane_info)))
+ r = -EFAULT;
+ break;
+
+ case OMAPFB_SETUP_MEM:
+ DBG("ioctl SETUP_MEM\n");
+ if (copy_from_user(&p.mem_info, (void __user *)arg,
+ sizeof(p.mem_info)))
+ r = -EFAULT;
+ else
+ r = omapfb_setup_mem(fbi, &p.mem_info);
+ break;
+
+ case OMAPFB_QUERY_MEM:
+ DBG("ioctl QUERY_MEM\n");
+ r = omapfb_query_mem(fbi, &p.mem_info);
+ if (r < 0)
+ break;
+ if (copy_to_user((void __user *)arg, &p.mem_info,
+ sizeof(p.mem_info)))
+ r = -EFAULT;
+ break;
+
+ case OMAPFB_GET_CAPS:
+ DBG("ioctl GET_CAPS\n");
+ if (!display) {
+ r = -EINVAL;
+ break;
+ }
+
+ memset(&p.caps, 0, sizeof(p.caps));
+ if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
+ p.caps.ctrl |= OMAPFB_CAPS_MANUAL_UPDATE;
+ if (display->caps & OMAP_DSS_DISPLAY_CAP_TEAR_ELIM)
+ p.caps.ctrl |= OMAPFB_CAPS_TEARSYNC;
+
+ if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
+ r = -EFAULT;
+ break;
+
+ case OMAPFB_GET_OVERLAY_COLORMODE:
+ DBG("ioctl GET_OVERLAY_COLORMODE\n");
+ if (copy_from_user(&p.ovl_colormode, (void __user *)arg,
+ sizeof(p.ovl_colormode))) {
+ r = -EFAULT;
+ break;
+ }
+ r = omapfb_get_ovl_colormode(fbdev, &p.ovl_colormode);
+ if (r < 0)
+ break;
+ if (copy_to_user((void __user *)arg, &p.ovl_colormode,
+ sizeof(p.ovl_colormode)))
+ r = -EFAULT;
+ break;
+
+ case OMAPFB_SET_UPDATE_MODE:
+ DBG("ioctl SET_UPDATE_MODE\n");
+ if (get_user(p.update_mode, (int __user *)arg))
+ r = -EFAULT;
+ else
+ r = omapfb_set_update_mode(fbi, p.update_mode);
+ break;
+
+ case OMAPFB_GET_UPDATE_MODE:
+ DBG("ioctl GET_UPDATE_MODE\n");
+ r = omapfb_get_update_mode(fbi, &p.update_mode);
+ if (r)
+ break;
+ if (put_user(p.update_mode,
+ (enum omapfb_update_mode __user *)arg))
+ r = -EFAULT;
+ break;
+
+ case OMAPFB_SET_COLOR_KEY:
+ DBG("ioctl SET_COLOR_KEY\n");
+ if (copy_from_user(&p.color_key, (void __user *)arg,
+ sizeof(p.color_key)))
+ r = -EFAULT;
+ else
+ r = omapfb_set_color_key(fbi, &p.color_key);
+ break;
+
+ case OMAPFB_GET_COLOR_KEY:
+ DBG("ioctl GET_COLOR_KEY\n");
+ r = omapfb_get_color_key(fbi, &p.color_key);
+ if (r)
+ break;
+ if (copy_to_user((void __user *)arg, &p.color_key,
+ sizeof(p.color_key)))
+ r = -EFAULT;
+ break;
+
+ case OMAPFB_WAITFORVSYNC:
+ DBG("ioctl WAITFORVSYNC\n");
+ if (!display) {
+ r = -EINVAL;
+ break;
+ }
+
+ r = display->wait_vsync(display);
+ break;
+
+ case OMAPFB_WAITFORGO:
+ DBG("ioctl WAITFORGO\n");
+ if (!display) {
+ r = -EINVAL;
+ break;
+ }
+
+ r = omapfb_wait_for_go(fbi);
+ break;
+
+ /* LCD and CTRL tests do the same thing for backward
+ * compatibility */
+ case OMAPFB_LCD_TEST:
+ DBG("ioctl LCD_TEST\n");
+ if (get_user(p.test_num, (int __user *)arg)) {
+ r = -EFAULT;
+ break;
+ }
+ if (!display || !display->run_test) {
+ r = -EINVAL;
+ break;
+ }
+
+ r = display->run_test(display, p.test_num);
+
+ break;
+
+ case OMAPFB_CTRL_TEST:
+ DBG("ioctl CTRL_TEST\n");
+ if (get_user(p.test_num, (int __user *)arg)) {
+ r = -EFAULT;
+ break;
+ }
+ if (!display || !display->run_test) {
+ r = -EINVAL;
+ break;
+ }
+
+ r = display->run_test(display, p.test_num);
+
+ break;
+
+ case OMAPFB_MEMORY_READ:
+ DBG("ioctl MEMORY_READ\n");
+
+ if (copy_from_user(&p.memory_read, (void __user *)arg,
+ sizeof(p.memory_read))) {
+ r = -EFAULT;
+ break;
+ }
+
+ r = omapfb_memory_read(fbi, &p.memory_read);
+
+ break;
+
+ case OMAPFB_GET_VRAM_INFO: {
+ unsigned long vram, free, largest;
+
+ DBG("ioctl GET_VRAM_INFO\n");
+
+ omap_vram_get_info(&vram, &free, &largest);
+ p.vram_info.total = vram;
+ p.vram_info.free = free;
+ p.vram_info.largest_free_block = largest;
+
+ if (copy_to_user((void __user *)arg, &p.vram_info,
+ sizeof(p.vram_info)))
+ r = -EFAULT;
+ break;
+ }
+
+ case OMAPFB_SET_TEARSYNC: {
+ DBG("ioctl SET_TEARSYNC\n");
+
+ if (copy_from_user(&p.tearsync_info, (void __user *)arg,
+ sizeof(p.tearsync_info))) {
+ r = -EFAULT;
+ break;
+ }
+
+ if (!display->enable_te) {
+ r = -ENODEV;
+ break;
+ }
+
+ r = display->enable_te(display, !!p.tearsync_info.enabled);
+
+ break;
+ }
+
+ default:
+ dev_err(fbdev->dev, "Unknown ioctl 0x%x\n", cmd);
+ r = -EINVAL;
+ }
+
+ if (r < 0)
+ DBG("ioctl failed: %d\n", r);
+
+ return r;
+}
+
+
--- /dev/null
+/*
+ * linux/drivers/video/omap2/omapfb-main.c
+ *
+ * Copyright (C) 2008 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * Some code and ideas taken from drivers/video/omap/ driver
+ * by Imre Deak.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/fb.h>
+#include <linux/dma-mapping.h>
+#include <linux/vmalloc.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/omapfb.h>
+
+#include <plat/display.h>
+#include <plat/vram.h>
+#include <plat/vrfb.h>
+
+#include "omapfb.h"
+
+#define MODULE_NAME "omapfb"
+
+#define OMAPFB_PLANE_XRES_MIN 8
+#define OMAPFB_PLANE_YRES_MIN 8
+
+static char *def_mode;
+static char *def_vram;
+static int def_vrfb;
+static int def_rotate;
+static int def_mirror;
+
+#ifdef DEBUG
+unsigned int omapfb_debug;
+module_param_named(debug, omapfb_debug, bool, 0644);
+static unsigned int omapfb_test_pattern;
+module_param_named(test, omapfb_test_pattern, bool, 0644);
+#endif
+
+static int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi);
+
+#ifdef DEBUG
+static void draw_pixel(struct fb_info *fbi, int x, int y, unsigned color)
+{
+ struct fb_var_screeninfo *var = &fbi->var;
+ struct fb_fix_screeninfo *fix = &fbi->fix;
+ void __iomem *addr = fbi->screen_base;
+ const unsigned bytespp = var->bits_per_pixel >> 3;
+ const unsigned line_len = fix->line_length / bytespp;
+
+ int r = (color >> 16) & 0xff;
+ int g = (color >> 8) & 0xff;
+ int b = (color >> 0) & 0xff;
+
+ if (var->bits_per_pixel == 16) {
+ u16 __iomem *p = (u16 __iomem *)addr;
+ p += y * line_len + x;
+
+ r = r * 32 / 256;
+ g = g * 64 / 256;
+ b = b * 32 / 256;
+
+ __raw_writew((r << 11) | (g << 5) | (b << 0), p);
+ } else if (var->bits_per_pixel == 24) {
+ u8 __iomem *p = (u8 __iomem *)addr;
+ p += (y * line_len + x) * 3;
+
+ __raw_writeb(b, p + 0);
+ __raw_writeb(g, p + 1);
+ __raw_writeb(r, p + 2);
+ } else if (var->bits_per_pixel == 32) {
+ u32 __iomem *p = (u32 __iomem *)addr;
+ p += y * line_len + x;
+ __raw_writel(color, p);
+ }
+}
+
+static void fill_fb(struct fb_info *fbi)
+{
+ struct fb_var_screeninfo *var = &fbi->var;
+ const short w = var->xres_virtual;
+ const short h = var->yres_virtual;
+ void __iomem *addr = fbi->screen_base;
+ int y, x;
+
+ if (!addr)
+ return;
+
+ DBG("fill_fb %dx%d, line_len %d bytes\n", w, h, fbi->fix.line_length);
+
+ for (y = 0; y < h; y++) {
+ for (x = 0; x < w; x++) {
+ if (x < 20 && y < 20)
+ draw_pixel(fbi, x, y, 0xffffff);
+ else if (x < 20 && (y > 20 && y < h - 20))
+ draw_pixel(fbi, x, y, 0xff);
+ else if (y < 20 && (x > 20 && x < w - 20))
+ draw_pixel(fbi, x, y, 0xff00);
+ else if (x > w - 20 && (y > 20 && y < h - 20))
+ draw_pixel(fbi, x, y, 0xff0000);
+ else if (y > h - 20 && (x > 20 && x < w - 20))
+ draw_pixel(fbi, x, y, 0xffff00);
+ else if (x == 20 || x == w - 20 ||
+ y == 20 || y == h - 20)
+ draw_pixel(fbi, x, y, 0xffffff);
+ else if (x == y || w - x == h - y)
+ draw_pixel(fbi, x, y, 0xff00ff);
+ else if (w - x == y || x == h - y)
+ draw_pixel(fbi, x, y, 0x00ffff);
+ else if (x > 20 && y > 20 && x < w - 20 && y < h - 20) {
+ int t = x * 3 / w;
+ unsigned r = 0, g = 0, b = 0;
+ unsigned c;
+ if (var->bits_per_pixel == 16) {
+ if (t == 0)
+ b = (y % 32) * 256 / 32;
+ else if (t == 1)
+ g = (y % 64) * 256 / 64;
+ else if (t == 2)
+ r = (y % 32) * 256 / 32;
+ } else {
+ if (t == 0)
+ b = (y % 256);
+ else if (t == 1)
+ g = (y % 256);
+ else if (t == 2)
+ r = (y % 256);
+ }
+ c = (r << 16) | (g << 8) | (b << 0);
+ draw_pixel(fbi, x, y, c);
+ } else {
+ draw_pixel(fbi, x, y, 0);
+ }
+ }
+ }
+}
+#endif
+
+static unsigned omapfb_get_vrfb_offset(struct omapfb_info *ofbi, int rot)
+{
+ struct vrfb *vrfb = &ofbi->region.vrfb;
+ unsigned offset;
+
+ switch (rot) {
+ case FB_ROTATE_UR:
+ offset = 0;
+ break;
+ case FB_ROTATE_CW:
+ offset = vrfb->yoffset;
+ break;
+ case FB_ROTATE_UD:
+ offset = vrfb->yoffset * OMAP_VRFB_LINE_LEN + vrfb->xoffset;
+ break;
+ case FB_ROTATE_CCW:
+ offset = vrfb->xoffset * OMAP_VRFB_LINE_LEN;
+ break;
+ default:
+ BUG();
+ }
+
+ offset *= vrfb->bytespp;
+
+ return offset;
+}
+
+static u32 omapfb_get_region_rot_paddr(struct omapfb_info *ofbi, int rot)
+{
+ if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
+ return ofbi->region.vrfb.paddr[rot]
+ + omapfb_get_vrfb_offset(ofbi, rot);
+ } else {
+ return ofbi->region.paddr;
+ }
+}
+
+static u32 omapfb_get_region_paddr(struct omapfb_info *ofbi)
+{
+ if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
+ return ofbi->region.vrfb.paddr[0];
+ else
+ return ofbi->region.paddr;
+}
+
+static void __iomem *omapfb_get_region_vaddr(struct omapfb_info *ofbi)
+{
+ if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
+ return ofbi->region.vrfb.vaddr[0];
+ else
+ return ofbi->region.vaddr;
+}
+
+static struct omapfb_colormode omapfb_colormodes[] = {
+ {
+ .dssmode = OMAP_DSS_COLOR_UYVY,
+ .bits_per_pixel = 16,
+ .nonstd = OMAPFB_COLOR_YUV422,
+ }, {
+ .dssmode = OMAP_DSS_COLOR_YUV2,
+ .bits_per_pixel = 16,
+ .nonstd = OMAPFB_COLOR_YUY422,
+ }, {
+ .dssmode = OMAP_DSS_COLOR_ARGB16,
+ .bits_per_pixel = 16,
+ .red = { .length = 4, .offset = 8, .msb_right = 0 },
+ .green = { .length = 4, .offset = 4, .msb_right = 0 },
+ .blue = { .length = 4, .offset = 0, .msb_right = 0 },
+ .transp = { .length = 4, .offset = 12, .msb_right = 0 },
+ }, {
+ .dssmode = OMAP_DSS_COLOR_RGB16,
+ .bits_per_pixel = 16,
+ .red = { .length = 5, .offset = 11, .msb_right = 0 },
+ .green = { .length = 6, .offset = 5, .msb_right = 0 },
+ .blue = { .length = 5, .offset = 0, .msb_right = 0 },
+ .transp = { .length = 0, .offset = 0, .msb_right = 0 },
+ }, {
+ .dssmode = OMAP_DSS_COLOR_RGB24P,
+ .bits_per_pixel = 24,
+ .red = { .length = 8, .offset = 16, .msb_right = 0 },
+ .green = { .length = 8, .offset = 8, .msb_right = 0 },
+ .blue = { .length = 8, .offset = 0, .msb_right = 0 },
+ .transp = { .length = 0, .offset = 0, .msb_right = 0 },
+ }, {
+ .dssmode = OMAP_DSS_COLOR_RGB24U,
+ .bits_per_pixel = 32,
+ .red = { .length = 8, .offset = 16, .msb_right = 0 },
+ .green = { .length = 8, .offset = 8, .msb_right = 0 },
+ .blue = { .length = 8, .offset = 0, .msb_right = 0 },
+ .transp = { .length = 0, .offset = 0, .msb_right = 0 },
+ }, {
+ .dssmode = OMAP_DSS_COLOR_ARGB32,
+ .bits_per_pixel = 32,
+ .red = { .length = 8, .offset = 16, .msb_right = 0 },
+ .green = { .length = 8, .offset = 8, .msb_right = 0 },
+ .blue = { .length = 8, .offset = 0, .msb_right = 0 },
+ .transp = { .length = 8, .offset = 24, .msb_right = 0 },
+ }, {
+ .dssmode = OMAP_DSS_COLOR_RGBA32,
+ .bits_per_pixel = 32,
+ .red = { .length = 8, .offset = 24, .msb_right = 0 },
+ .green = { .length = 8, .offset = 16, .msb_right = 0 },
+ .blue = { .length = 8, .offset = 8, .msb_right = 0 },
+ .transp = { .length = 8, .offset = 0, .msb_right = 0 },
+ }, {
+ .dssmode = OMAP_DSS_COLOR_RGBX32,
+ .bits_per_pixel = 32,
+ .red = { .length = 8, .offset = 24, .msb_right = 0 },
+ .green = { .length = 8, .offset = 16, .msb_right = 0 },
+ .blue = { .length = 8, .offset = 8, .msb_right = 0 },
+ .transp = { .length = 0, .offset = 0, .msb_right = 0 },
+ },
+};
+
+static bool cmp_var_to_colormode(struct fb_var_screeninfo *var,
+ struct omapfb_colormode *color)
+{
+ bool cmp_component(struct fb_bitfield *f1, struct fb_bitfield *f2)
+ {
+ return f1->length == f2->length &&
+ f1->offset == f2->offset &&
+ f1->msb_right == f2->msb_right;
+ }
+
+ if (var->bits_per_pixel == 0 ||
+ var->red.length == 0 ||
+ var->blue.length == 0 ||
+ var->green.length == 0)
+ return 0;
+
+ return var->bits_per_pixel == color->bits_per_pixel &&
+ cmp_component(&var->red, &color->red) &&
+ cmp_component(&var->green, &color->green) &&
+ cmp_component(&var->blue, &color->blue) &&
+ cmp_component(&var->transp, &color->transp);
+}
+
+static void assign_colormode_to_var(struct fb_var_screeninfo *var,
+ struct omapfb_colormode *color)
+{
+ var->bits_per_pixel = color->bits_per_pixel;
+ var->nonstd = color->nonstd;
+ var->red = color->red;
+ var->green = color->green;
+ var->blue = color->blue;
+ var->transp = color->transp;
+}
+
+static int fb_mode_to_dss_mode(struct fb_var_screeninfo *var,
+ enum omap_color_mode *mode)
+{
+ enum omap_color_mode dssmode;
+ int i;
+
+ /* first match with nonstd field */
+ if (var->nonstd) {
+ for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
+ struct omapfb_colormode *m = &omapfb_colormodes[i];
+ if (var->nonstd == m->nonstd) {
+ assign_colormode_to_var(var, m);
+ *mode = m->dssmode;
+ return 0;
+ }
+ }
+
+ return -EINVAL;
+ }
+
+ /* then try exact match of bpp and colors */
+ for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
+ struct omapfb_colormode *m = &omapfb_colormodes[i];
+ if (cmp_var_to_colormode(var, m)) {
+ assign_colormode_to_var(var, m);
+ *mode = m->dssmode;
+ return 0;
+ }
+ }
+
+ /* match with bpp if user has not filled color fields
+ * properly */
+ switch (var->bits_per_pixel) {
+ case 1:
+ dssmode = OMAP_DSS_COLOR_CLUT1;
+ break;
+ case 2:
+ dssmode = OMAP_DSS_COLOR_CLUT2;
+ break;
+ case 4:
+ dssmode = OMAP_DSS_COLOR_CLUT4;
+ break;
+ case 8:
+ dssmode = OMAP_DSS_COLOR_CLUT8;
+ break;
+ case 12:
+ dssmode = OMAP_DSS_COLOR_RGB12U;
+ break;
+ case 16:
+ dssmode = OMAP_DSS_COLOR_RGB16;
+ break;
+ case 24:
+ dssmode = OMAP_DSS_COLOR_RGB24P;
+ break;
+ case 32:
+ dssmode = OMAP_DSS_COLOR_RGB24U;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
+ struct omapfb_colormode *m = &omapfb_colormodes[i];
+ if (dssmode == m->dssmode) {
+ assign_colormode_to_var(var, m);
+ *mode = m->dssmode;
+ return 0;
+ }
+ }
+
+ return -EINVAL;
+}
+
+static int check_fb_res_bounds(struct fb_var_screeninfo *var)
+{
+ int xres_min = OMAPFB_PLANE_XRES_MIN;
+ int xres_max = 2048;
+ int yres_min = OMAPFB_PLANE_YRES_MIN;
+ int yres_max = 2048;
+
+ /* XXX: some applications seem to set virtual res to 0. */
+ if (var->xres_virtual == 0)
+ var->xres_virtual = var->xres;
+
+ if (var->yres_virtual == 0)
+ var->yres_virtual = var->yres;
+
+ if (var->xres_virtual < xres_min || var->yres_virtual < yres_min)
+ return -EINVAL;
+
+ if (var->xres < xres_min)
+ var->xres = xres_min;
+ if (var->yres < yres_min)
+ var->yres = yres_min;
+ if (var->xres > xres_max)
+ var->xres = xres_max;
+ if (var->yres > yres_max)
+ var->yres = yres_max;
+
+ if (var->xres > var->xres_virtual)
+ var->xres = var->xres_virtual;
+ if (var->yres > var->yres_virtual)
+ var->yres = var->yres_virtual;
+
+ return 0;
+}
+
+static void shrink_height(unsigned long max_frame_size,
+ struct fb_var_screeninfo *var)
+{
+ DBG("can't fit FB into memory, reducing y\n");
+ var->yres_virtual = max_frame_size /
+ (var->xres_virtual * var->bits_per_pixel >> 3);
+
+ if (var->yres_virtual < OMAPFB_PLANE_YRES_MIN)
+ var->yres_virtual = OMAPFB_PLANE_YRES_MIN;
+
+ if (var->yres > var->yres_virtual)
+ var->yres = var->yres_virtual;
+}
+
+static void shrink_width(unsigned long max_frame_size,
+ struct fb_var_screeninfo *var)
+{
+ DBG("can't fit FB into memory, reducing x\n");
+ var->xres_virtual = max_frame_size / var->yres_virtual /
+ (var->bits_per_pixel >> 3);
+
+ if (var->xres_virtual < OMAPFB_PLANE_XRES_MIN)
+ var->xres_virtual = OMAPFB_PLANE_XRES_MIN;
+
+ if (var->xres > var->xres_virtual)
+ var->xres = var->xres_virtual;
+}
+
+static int check_vrfb_fb_size(unsigned long region_size,
+ const struct fb_var_screeninfo *var)
+{
+ unsigned long min_phys_size = omap_vrfb_min_phys_size(var->xres_virtual,
+ var->yres_virtual, var->bits_per_pixel >> 3);
+
+ return min_phys_size > region_size ? -EINVAL : 0;
+}
+
+static int check_fb_size(const struct omapfb_info *ofbi,
+ struct fb_var_screeninfo *var)
+{
+ unsigned long max_frame_size = ofbi->region.size;
+ int bytespp = var->bits_per_pixel >> 3;
+ unsigned long line_size = var->xres_virtual * bytespp;
+
+ if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
+ /* One needs to check for both VRFB and OMAPFB limitations. */
+ if (check_vrfb_fb_size(max_frame_size, var))
+ shrink_height(omap_vrfb_max_height(
+ max_frame_size, var->xres_virtual, bytespp) *
+ line_size, var);
+
+ if (check_vrfb_fb_size(max_frame_size, var)) {
+ DBG("cannot fit FB to memory\n");
+ return -EINVAL;
+ }
+
+ return 0;
+ }
+
+ DBG("max frame size %lu, line size %lu\n", max_frame_size, line_size);
+
+ if (line_size * var->yres_virtual > max_frame_size)
+ shrink_height(max_frame_size, var);
+
+ if (line_size * var->yres_virtual > max_frame_size) {
+ shrink_width(max_frame_size, var);
+ line_size = var->xres_virtual * bytespp;
+ }
+
+ if (line_size * var->yres_virtual > max_frame_size) {
+ DBG("cannot fit FB to memory\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/*
+ * Consider if VRFB assisted rotation is in use and if the virtual space for
+ * the zero degree view needs to be mapped. The need for mapping also acts as
+ * the trigger for setting up the hardware on the context in question. This
+ * ensures that one does not attempt to access the virtual view before the
+ * hardware is serving the address translations.
+ */
+static int setup_vrfb_rotation(struct fb_info *fbi)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_mem_region *rg = &ofbi->region;
+ struct vrfb *vrfb = &rg->vrfb;
+ struct fb_var_screeninfo *var = &fbi->var;
+ struct fb_fix_screeninfo *fix = &fbi->fix;
+ unsigned bytespp;
+ bool yuv_mode;
+ enum omap_color_mode mode;
+ int r;
+ bool reconf;
+
+ if (!rg->size || ofbi->rotation_type != OMAP_DSS_ROT_VRFB)
+ return 0;
+
+ DBG("setup_vrfb_rotation\n");
+
+ r = fb_mode_to_dss_mode(var, &mode);
+ if (r)
+ return r;
+
+ bytespp = var->bits_per_pixel >> 3;
+
+ yuv_mode = mode == OMAP_DSS_COLOR_YUV2 || mode == OMAP_DSS_COLOR_UYVY;
+
+ /* We need to reconfigure VRFB if the resolution changes, if yuv mode
+ * is enabled/disabled, or if bytes per pixel changes */
+
+ /* XXX we shouldn't allow this when framebuffer is mmapped */
+
+ reconf = false;
+
+ if (yuv_mode != vrfb->yuv_mode)
+ reconf = true;
+ else if (bytespp != vrfb->bytespp)
+ reconf = true;
+ else if (vrfb->xres != var->xres_virtual ||
+ vrfb->yres != var->yres_virtual)
+ reconf = true;
+
+ if (vrfb->vaddr[0] && reconf) {
+ fbi->screen_base = NULL;
+ fix->smem_start = 0;
+ fix->smem_len = 0;
+ iounmap(vrfb->vaddr[0]);
+ vrfb->vaddr[0] = NULL;
+ DBG("setup_vrfb_rotation: reset fb\n");
+ }
+
+ if (vrfb->vaddr[0])
+ return 0;
+
+ omap_vrfb_setup(&rg->vrfb, rg->paddr,
+ var->xres_virtual,
+ var->yres_virtual,
+ bytespp, yuv_mode);
+
+ /* Now one can ioremap the 0 angle view */
+ r = omap_vrfb_map_angle(vrfb, var->yres_virtual, 0);
+ if (r)
+ return r;
+
+ /* used by open/write in fbmem.c */
+ fbi->screen_base = ofbi->region.vrfb.vaddr[0];
+
+ fix->smem_start = ofbi->region.vrfb.paddr[0];
+
+ switch (var->nonstd) {
+ case OMAPFB_COLOR_YUV422:
+ case OMAPFB_COLOR_YUY422:
+ fix->line_length =
+ (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 2;
+ break;
+ default:
+ fix->line_length =
+ (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 3;
+ break;
+ }
+
+ fix->smem_len = var->yres_virtual * fix->line_length;
+
+ return 0;
+}
+
+int dss_mode_to_fb_mode(enum omap_color_mode dssmode,
+ struct fb_var_screeninfo *var)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
+ struct omapfb_colormode *mode = &omapfb_colormodes[i];
+ if (dssmode == mode->dssmode) {
+ assign_colormode_to_var(var, mode);
+ return 0;
+ }
+ }
+ return -ENOENT;
+}
+
+void set_fb_fix(struct fb_info *fbi)
+{
+ struct fb_fix_screeninfo *fix = &fbi->fix;
+ struct fb_var_screeninfo *var = &fbi->var;
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_mem_region *rg = &ofbi->region;
+
+ DBG("set_fb_fix\n");
+
+ /* used by open/write in fbmem.c */
+ fbi->screen_base = (char __iomem *)omapfb_get_region_vaddr(ofbi);
+
+ /* used by mmap in fbmem.c */
+ if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
+ switch (var->nonstd) {
+ case OMAPFB_COLOR_YUV422:
+ case OMAPFB_COLOR_YUY422:
+ fix->line_length =
+ (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 2;
+ break;
+ default:
+ fix->line_length =
+ (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 3;
+ break;
+ }
+
+ fix->smem_len = var->yres_virtual * fix->line_length;
+ } else {
+ fix->line_length =
+ (var->xres_virtual * var->bits_per_pixel) >> 3;
+ fix->smem_len = rg->size;
+ }
+
+ fix->smem_start = omapfb_get_region_paddr(ofbi);
+
+ fix->type = FB_TYPE_PACKED_PIXELS;
+
+ if (var->nonstd)
+ fix->visual = FB_VISUAL_PSEUDOCOLOR;
+ else {
+ switch (var->bits_per_pixel) {
+ case 32:
+ case 24:
+ case 16:
+ case 12:
+ fix->visual = FB_VISUAL_TRUECOLOR;
+ /* 12bpp is stored in 16 bits */
+ break;
+ case 1:
+ case 2:
+ case 4:
+ case 8:
+ fix->visual = FB_VISUAL_PSEUDOCOLOR;
+ break;
+ }
+ }
+
+ fix->accel = FB_ACCEL_NONE;
+
+ fix->xpanstep = 1;
+ fix->ypanstep = 1;
+}
+
+/* check new var and possibly modify it to be ok */
+int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omap_dss_device *display = fb2display(fbi);
+ enum omap_color_mode mode = 0;
+ int i;
+ int r;
+
+ DBG("check_fb_var %d\n", ofbi->id);
+
+ if (ofbi->region.size == 0)
+ return 0;
+
+ r = fb_mode_to_dss_mode(var, &mode);
+ if (r) {
+ DBG("cannot convert var to omap dss mode\n");
+ return r;
+ }
+
+ for (i = 0; i < ofbi->num_overlays; ++i) {
+ if ((ofbi->overlays[i]->supported_modes & mode) == 0) {
+ DBG("invalid mode\n");
+ return -EINVAL;
+ }
+ }
+
+ if (var->rotate < 0 || var->rotate > 3)
+ return -EINVAL;
+
+ if (check_fb_res_bounds(var))
+ return -EINVAL;
+
+ if (check_fb_size(ofbi, var))
+ return -EINVAL;
+
+ if (var->xres + var->xoffset > var->xres_virtual)
+ var->xoffset = var->xres_virtual - var->xres;
+ if (var->yres + var->yoffset > var->yres_virtual)
+ var->yoffset = var->yres_virtual - var->yres;
+
+ DBG("xres = %d, yres = %d, vxres = %d, vyres = %d\n",
+ var->xres, var->yres,
+ var->xres_virtual, var->yres_virtual);
+
+ var->height = -1;
+ var->width = -1;
+ var->grayscale = 0;
+
+ if (display && display->get_timings) {
+ struct omap_video_timings timings;
+ display->get_timings(display, &timings);
+
+ /* pixclock in ps, the rest in pixclock */
+ var->pixclock = timings.pixel_clock != 0 ?
+ KHZ2PICOS(timings.pixel_clock) :
+ 0;
+ var->left_margin = timings.hfp;
+ var->right_margin = timings.hbp;
+ var->upper_margin = timings.vfp;
+ var->lower_margin = timings.vbp;
+ var->hsync_len = timings.hsw;
+ var->vsync_len = timings.vsw;
+ } else {
+ var->pixclock = 0;
+ var->left_margin = 0;
+ var->right_margin = 0;
+ var->upper_margin = 0;
+ var->lower_margin = 0;
+ var->hsync_len = 0;
+ var->vsync_len = 0;
+ }
+
+ /* TODO: get these from panel->config */
+ var->vmode = FB_VMODE_NONINTERLACED;
+ var->sync = 0;
+
+ return 0;
+}
+
+/*
+ * ---------------------------------------------------------------------------
+ * fbdev framework callbacks
+ * ---------------------------------------------------------------------------
+ */
+static int omapfb_open(struct fb_info *fbi, int user)
+{
+ return 0;
+}
+
+static int omapfb_release(struct fb_info *fbi, int user)
+{
+#if 0
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_device *fbdev = ofbi->fbdev;
+ struct omap_dss_device *display = fb2display(fbi);
+
+ DBG("Closing fb with plane index %d\n", ofbi->id);
+
+ omapfb_lock(fbdev);
+
+ if (display && display->get_update_mode && display->update) {
+ /* XXX this update should be removed, I think. But it's
+ * good for debugging */
+ if (display->get_update_mode(display) ==
+ OMAP_DSS_UPDATE_MANUAL) {
+ u16 w, h;
+
+ if (display->sync)
+ display->sync(display);
+
+ display->get_resolution(display, &w, &h);
+ display->update(display, 0, 0, w, h);
+ }
+ }
+
+ if (display && display->sync)
+ display->sync(display);
+
+ omapfb_unlock(fbdev);
+#endif
+ return 0;
+}
+
+static unsigned calc_rotation_offset_dma(struct fb_var_screeninfo *var,
+ struct fb_fix_screeninfo *fix, int rotation)
+{
+ unsigned offset;
+
+ offset = var->yoffset * fix->line_length +
+ var->xoffset * (var->bits_per_pixel >> 3);
+
+ return offset;
+}
+
+static unsigned calc_rotation_offset_vrfb(struct fb_var_screeninfo *var,
+ struct fb_fix_screeninfo *fix, int rotation)
+{
+ unsigned offset;
+
+ if (rotation == FB_ROTATE_UD)
+ offset = (var->yres_virtual - var->yres) *
+ fix->line_length;
+ else if (rotation == FB_ROTATE_CW)
+ offset = (var->yres_virtual - var->yres) *
+ (var->bits_per_pixel >> 3);
+ else
+ offset = 0;
+
+ if (rotation == FB_ROTATE_UR)
+ offset += var->yoffset * fix->line_length +
+ var->xoffset * (var->bits_per_pixel >> 3);
+ else if (rotation == FB_ROTATE_UD)
+ offset -= var->yoffset * fix->line_length +
+ var->xoffset * (var->bits_per_pixel >> 3);
+ else if (rotation == FB_ROTATE_CW)
+ offset -= var->xoffset * fix->line_length +
+ var->yoffset * (var->bits_per_pixel >> 3);
+ else if (rotation == FB_ROTATE_CCW)
+ offset += var->xoffset * fix->line_length +
+ var->yoffset * (var->bits_per_pixel >> 3);
+
+ return offset;
+}
+
+
+/* setup overlay according to the fb */
+static int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl,
+ u16 posx, u16 posy, u16 outw, u16 outh)
+{
+ int r = 0;
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct fb_var_screeninfo *var = &fbi->var;
+ struct fb_fix_screeninfo *fix = &fbi->fix;
+ enum omap_color_mode mode = 0;
+ int offset;
+ u32 data_start_p;
+ void __iomem *data_start_v;
+ struct omap_overlay_info info;
+ int xres, yres;
+ int screen_width;
+ int mirror;
+ int rotation = var->rotate;
+ int i;
+
+ for (i = 0; i < ofbi->num_overlays; i++) {
+ if (ovl != ofbi->overlays[i])
+ continue;
+
+ rotation = (rotation + ofbi->rotation[i]) % 4;
+ break;
+ }
+
+ DBG("setup_overlay %d, posx %d, posy %d, outw %d, outh %d\n", ofbi->id,
+ posx, posy, outw, outh);
+
+ if (rotation == FB_ROTATE_CW || rotation == FB_ROTATE_CCW) {
+ xres = var->yres;
+ yres = var->xres;
+ } else {
+ xres = var->xres;
+ yres = var->yres;
+ }
+
+
+ if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
+ data_start_p = omapfb_get_region_rot_paddr(ofbi, rotation);
+ data_start_v = NULL;
+ } else {
+ data_start_p = omapfb_get_region_paddr(ofbi);
+ data_start_v = omapfb_get_region_vaddr(ofbi);
+ }
+
+ if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
+ offset = calc_rotation_offset_vrfb(var, fix, rotation);
+ else
+ offset = calc_rotation_offset_dma(var, fix, rotation);
+
+ data_start_p += offset;
+ data_start_v += offset;
+
+ if (offset)
+ DBG("offset %d, %d = %d\n",
+ var->xoffset, var->yoffset, offset);
+
+ DBG("paddr %x, vaddr %p\n", data_start_p, data_start_v);
+
+ r = fb_mode_to_dss_mode(var, &mode);
+ if (r) {
+ DBG("fb_mode_to_dss_mode failed");
+ goto err;
+ }
+
+ switch (var->nonstd) {
+ case OMAPFB_COLOR_YUV422:
+ case OMAPFB_COLOR_YUY422:
+ if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
+ screen_width = fix->line_length
+ / (var->bits_per_pixel >> 2);
+ break;
+ }
+ default:
+ screen_width = fix->line_length / (var->bits_per_pixel >> 3);
+ break;
+ }
+
+ ovl->get_overlay_info(ovl, &info);
+
+ if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
+ mirror = 0;
+ else
+ mirror = ofbi->mirror;
+
+ info.paddr = data_start_p;
+ info.vaddr = data_start_v;
+ info.screen_width = screen_width;
+ info.width = xres;
+ info.height = yres;
+ info.color_mode = mode;
+ info.rotation_type = ofbi->rotation_type;
+ info.rotation = rotation;
+ info.mirror = mirror;
+
+ info.pos_x = posx;
+ info.pos_y = posy;
+ info.out_width = outw;
+ info.out_height = outh;
+
+ r = ovl->set_overlay_info(ovl, &info);
+ if (r) {
+ DBG("ovl->setup_overlay_info failed\n");
+ goto err;
+ }
+
+ return 0;
+
+err:
+ DBG("setup_overlay failed\n");
+ return r;
+}
+
+/* apply var to the overlay */
+int omapfb_apply_changes(struct fb_info *fbi, int init)
+{
+ int r = 0;
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct fb_var_screeninfo *var = &fbi->var;
+ struct omap_overlay *ovl;
+ u16 posx, posy;
+ u16 outw, outh;
+ int i;
+
+#ifdef DEBUG
+ if (omapfb_test_pattern)
+ fill_fb(fbi);
+#endif
+
+ for (i = 0; i < ofbi->num_overlays; i++) {
+ ovl = ofbi->overlays[i];
+
+ DBG("apply_changes, fb %d, ovl %d\n", ofbi->id, ovl->id);
+
+ if (ofbi->region.size == 0) {
+ /* the fb is not available. disable the overlay */
+ omapfb_overlay_enable(ovl, 0);
+ if (!init && ovl->manager)
+ ovl->manager->apply(ovl->manager);
+ continue;
+ }
+
+ if (init || (ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) {
+ int rotation = (var->rotate + ofbi->rotation[i]) % 4;
+ if (rotation == FB_ROTATE_CW ||
+ rotation == FB_ROTATE_CCW) {
+ outw = var->yres;
+ outh = var->xres;
+ } else {
+ outw = var->xres;
+ outh = var->yres;
+ }
+ } else {
+ outw = ovl->info.out_width;
+ outh = ovl->info.out_height;
+ }
+
+ if (init) {
+ posx = 0;
+ posy = 0;
+ } else {
+ posx = ovl->info.pos_x;
+ posy = ovl->info.pos_y;
+ }
+
+ r = omapfb_setup_overlay(fbi, ovl, posx, posy, outw, outh);
+ if (r)
+ goto err;
+
+ if (!init && ovl->manager)
+ ovl->manager->apply(ovl->manager);
+ }
+ return 0;
+err:
+ DBG("apply_changes failed\n");
+ return r;
+}
+
+/* checks var and eventually tweaks it to something supported,
+ * DO NOT MODIFY PAR */
+static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
+{
+ int r;
+
+ DBG("check_var(%d)\n", FB2OFB(fbi)->id);
+
+ r = check_fb_var(fbi, var);
+
+ return r;
+}
+
+/* set the video mode according to info->var */
+static int omapfb_set_par(struct fb_info *fbi)
+{
+ int r;
+
+ DBG("set_par(%d)\n", FB2OFB(fbi)->id);
+
+ set_fb_fix(fbi);
+
+ r = setup_vrfb_rotation(fbi);
+ if (r)
+ return r;
+
+ r = omapfb_apply_changes(fbi, 0);
+
+ return r;
+}
+
+static int omapfb_pan_display(struct fb_var_screeninfo *var,
+ struct fb_info *fbi)
+{
+ struct fb_var_screeninfo new_var;
+ int r;
+
+ DBG("pan_display(%d)\n", FB2OFB(fbi)->id);
+
+ if (var->xoffset == fbi->var.xoffset &&
+ var->yoffset == fbi->var.yoffset)
+ return 0;
+
+ new_var = fbi->var;
+ new_var.xoffset = var->xoffset;
+ new_var.yoffset = var->yoffset;
+
+ fbi->var = new_var;
+
+ r = omapfb_apply_changes(fbi, 0);
+
+ return r;
+}
+
+static void mmap_user_open(struct vm_area_struct *vma)
+{
+ struct omapfb_info *ofbi = (struct omapfb_info *)vma->vm_private_data;
+
+ atomic_inc(&ofbi->map_count);
+}
+
+static void mmap_user_close(struct vm_area_struct *vma)
+{
+ struct omapfb_info *ofbi = (struct omapfb_info *)vma->vm_private_data;
+
+ atomic_dec(&ofbi->map_count);
+}
+
+static struct vm_operations_struct mmap_user_ops = {
+ .open = mmap_user_open,
+ .close = mmap_user_close,
+};
+
+static int omapfb_mmap(struct fb_info *fbi, struct vm_area_struct *vma)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct fb_fix_screeninfo *fix = &fbi->fix;
+ unsigned long off;
+ unsigned long start;
+ u32 len;
+
+ if (vma->vm_end - vma->vm_start == 0)
+ return 0;
+ if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT))
+ return -EINVAL;
+ off = vma->vm_pgoff << PAGE_SHIFT;
+
+ start = omapfb_get_region_paddr(ofbi);
+ len = fix->smem_len;
+ if (off >= len)
+ return -EINVAL;
+ if ((vma->vm_end - vma->vm_start + off) > len)
+ return -EINVAL;
+
+ off += start;
+
+ DBG("user mmap region start %lx, len %d, off %lx\n", start, len, off);
+
+ vma->vm_pgoff = off >> PAGE_SHIFT;
+ vma->vm_flags |= VM_IO | VM_RESERVED;
+ vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
+ vma->vm_ops = &mmap_user_ops;
+ vma->vm_private_data = ofbi;
+ if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
+ vma->vm_end - vma->vm_start, vma->vm_page_prot))
+ return -EAGAIN;
+ /* vm_ops.open won't be called for mmap itself. */
+ atomic_inc(&ofbi->map_count);
+ return 0;
+}
+
+/* Store a single color palette entry into a pseudo palette or the hardware
+ * palette if one is available. For now we support only 16bpp and thus store
+ * the entry only to the pseudo palette.
+ */
+static int _setcolreg(struct fb_info *fbi, u_int regno, u_int red, u_int green,
+ u_int blue, u_int transp, int update_hw_pal)
+{
+ /*struct omapfb_info *ofbi = FB2OFB(fbi);*/
+ /*struct omapfb2_device *fbdev = ofbi->fbdev;*/
+ struct fb_var_screeninfo *var = &fbi->var;
+ int r = 0;
+
+ enum omapfb_color_format mode = OMAPFB_COLOR_RGB24U; /* XXX */
+
+ /*switch (plane->color_mode) {*/
+ switch (mode) {
+ case OMAPFB_COLOR_YUV422:
+ case OMAPFB_COLOR_YUV420:
+ case OMAPFB_COLOR_YUY422:
+ r = -EINVAL;
+ break;
+ case OMAPFB_COLOR_CLUT_8BPP:
+ case OMAPFB_COLOR_CLUT_4BPP:
+ case OMAPFB_COLOR_CLUT_2BPP:
+ case OMAPFB_COLOR_CLUT_1BPP:
+ /*
+ if (fbdev->ctrl->setcolreg)
+ r = fbdev->ctrl->setcolreg(regno, red, green, blue,
+ transp, update_hw_pal);
+ */
+ /* Fallthrough */
+ r = -EINVAL;
+ break;
+ case OMAPFB_COLOR_RGB565:
+ case OMAPFB_COLOR_RGB444:
+ case OMAPFB_COLOR_RGB24P:
+ case OMAPFB_COLOR_RGB24U:
+ if (r != 0)
+ break;
+
+ if (regno < 0) {
+ r = -EINVAL;
+ break;
+ }
+
+ if (regno < 16) {
+ u16 pal;
+ pal = ((red >> (16 - var->red.length)) <<
+ var->red.offset) |
+ ((green >> (16 - var->green.length)) <<
+ var->green.offset) |
+ (blue >> (16 - var->blue.length));
+ ((u32 *)(fbi->pseudo_palette))[regno] = pal;
+ }
+ break;
+ default:
+ BUG();
+ }
+ return r;
+}
+
+static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
+ u_int transp, struct fb_info *info)
+{
+ DBG("setcolreg\n");
+
+ return _setcolreg(info, regno, red, green, blue, transp, 1);
+}
+
+static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
+{
+ int count, index, r;
+ u16 *red, *green, *blue, *transp;
+ u16 trans = 0xffff;
+
+ DBG("setcmap\n");
+
+ red = cmap->red;
+ green = cmap->green;
+ blue = cmap->blue;
+ transp = cmap->transp;
+ index = cmap->start;
+
+ for (count = 0; count < cmap->len; count++) {
+ if (transp)
+ trans = *transp++;
+ r = _setcolreg(info, index++, *red++, *green++, *blue++, trans,
+ count == cmap->len - 1);
+ if (r != 0)
+ return r;
+ }
+
+ return 0;
+}
+
+static int omapfb_blank(int blank, struct fb_info *fbi)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_device *fbdev = ofbi->fbdev;
+ struct omap_dss_device *display = fb2display(fbi);
+ int do_update = 0;
+ int r = 0;
+
+ omapfb_lock(fbdev);
+
+ switch (blank) {
+ case FB_BLANK_UNBLANK:
+ if (display->state != OMAP_DSS_DISPLAY_SUSPENDED)
+ goto exit;
+
+ if (display->resume)
+ r = display->resume(display);
+
+ if (r == 0 && display->get_update_mode &&
+ display->get_update_mode(display) ==
+ OMAP_DSS_UPDATE_MANUAL)
+ do_update = 1;
+
+ break;
+
+ case FB_BLANK_NORMAL:
+ /* FB_BLANK_NORMAL could be implemented.
+ * Needs DSS additions. */
+ case FB_BLANK_VSYNC_SUSPEND:
+ case FB_BLANK_HSYNC_SUSPEND:
+ case FB_BLANK_POWERDOWN:
+ if (display->state != OMAP_DSS_DISPLAY_ACTIVE)
+ goto exit;
+
+ if (display->suspend)
+ r = display->suspend(display);
+
+ break;
+
+ default:
+ r = -EINVAL;
+ }
+
+exit:
+ omapfb_unlock(fbdev);
+
+ if (r == 0 && do_update && display->update) {
+ u16 w, h;
+ display->get_resolution(display, &w, &h);
+
+ r = display->update(display, 0, 0, w, h);
+ }
+
+ return r;
+}
+
+#if 0
+/* XXX fb_read and fb_write are needed for VRFB */
+ssize_t omapfb_write(struct fb_info *info, const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ DBG("omapfb_write %d, %lu\n", count, (unsigned long)*ppos);
+ /* XXX needed for VRFB */
+ return count;
+}
+#endif
+
+static struct fb_ops omapfb_ops = {
+ .owner = THIS_MODULE,
+ .fb_open = omapfb_open,
+ .fb_release = omapfb_release,
+ .fb_fillrect = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+ .fb_blank = omapfb_blank,
+ .fb_ioctl = omapfb_ioctl,
+ .fb_check_var = omapfb_check_var,
+ .fb_set_par = omapfb_set_par,
+ .fb_pan_display = omapfb_pan_display,
+ .fb_mmap = omapfb_mmap,
+ .fb_setcolreg = omapfb_setcolreg,
+ .fb_setcmap = omapfb_setcmap,
+ /*.fb_write = omapfb_write,*/
+};
+
+static void omapfb_free_fbmem(struct fb_info *fbi)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_device *fbdev = ofbi->fbdev;
+ struct omapfb2_mem_region *rg;
+
+ rg = &ofbi->region;
+
+ if (rg->paddr)
+ if (omap_vram_free(rg->paddr, rg->size))
+ dev_err(fbdev->dev, "VRAM FREE failed\n");
+
+ if (rg->vaddr)
+ iounmap(rg->vaddr);
+
+ if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
+ /* unmap the 0 angle rotation */
+ if (rg->vrfb.vaddr[0]) {
+ iounmap(rg->vrfb.vaddr[0]);
+ omap_vrfb_release_ctx(&rg->vrfb);
+ }
+ }
+
+ rg->vaddr = NULL;
+ rg->paddr = 0;
+ rg->alloc = 0;
+ rg->size = 0;
+}
+
+static void clear_fb_info(struct fb_info *fbi)
+{
+ memset(&fbi->var, 0, sizeof(fbi->var));
+ memset(&fbi->fix, 0, sizeof(fbi->fix));
+ strlcpy(fbi->fix.id, MODULE_NAME, sizeof(fbi->fix.id));
+}
+
+static int omapfb_free_all_fbmem(struct omapfb2_device *fbdev)
+{
+ int i;
+
+ DBG("free all fbmem\n");
+
+ for (i = 0; i < fbdev->num_fbs; i++) {
+ struct fb_info *fbi = fbdev->fbs[i];
+ omapfb_free_fbmem(fbi);
+ clear_fb_info(fbi);
+ }
+
+ return 0;
+}
+
+static int omapfb_alloc_fbmem(struct fb_info *fbi, unsigned long size,
+ unsigned long paddr)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_device *fbdev = ofbi->fbdev;
+ struct omapfb2_mem_region *rg;
+ void __iomem *vaddr;
+ int r;
+
+ rg = &ofbi->region;
+ memset(rg, 0, sizeof(*rg));
+
+ size = PAGE_ALIGN(size);
+
+ if (!paddr) {
+ DBG("allocating %lu bytes for fb %d\n", size, ofbi->id);
+ r = omap_vram_alloc(OMAP_VRAM_MEMTYPE_SDRAM, size, &paddr);
+ } else {
+ DBG("reserving %lu bytes at %lx for fb %d\n", size, paddr,
+ ofbi->id);
+ r = omap_vram_reserve(paddr, size);
+ }
+
+ if (r) {
+ dev_err(fbdev->dev, "failed to allocate framebuffer\n");
+ return -ENOMEM;
+ }
+
+ if (ofbi->rotation_type != OMAP_DSS_ROT_VRFB) {
+ vaddr = ioremap_wc(paddr, size);
+
+ if (!vaddr) {
+ dev_err(fbdev->dev, "failed to ioremap framebuffer\n");
+ omap_vram_free(paddr, size);
+ return -ENOMEM;
+ }
+
+ DBG("allocated VRAM paddr %lx, vaddr %p\n", paddr, vaddr);
+ } else {
+ r = omap_vrfb_request_ctx(&rg->vrfb);
+ if (r) {
+ dev_err(fbdev->dev, "vrfb create ctx failed\n");
+ return r;
+ }
+
+ vaddr = NULL;
+ }
+
+ rg->paddr = paddr;
+ rg->vaddr = vaddr;
+ rg->size = size;
+ rg->alloc = 1;
+
+ return 0;
+}
+
+/* allocate fbmem using display resolution as reference */
+static int omapfb_alloc_fbmem_display(struct fb_info *fbi, unsigned long size,
+ unsigned long paddr)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omap_dss_device *display;
+ int bytespp;
+
+ display = fb2display(fbi);
+
+ if (!display)
+ return 0;
+
+ switch (display->get_recommended_bpp(display)) {
+ case 16:
+ bytespp = 2;
+ break;
+ case 24:
+ bytespp = 4;
+ break;
+ default:
+ bytespp = 4;
+ break;
+ }
+
+ if (!size) {
+ u16 w, h;
+
+ display->get_resolution(display, &w, &h);
+
+ if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
+ size = max(omap_vrfb_min_phys_size(w, h, bytespp),
+ omap_vrfb_min_phys_size(h, w, bytespp));
+
+ DBG("adjusting fb mem size for VRFB, %u -> %lu\n",
+ w * h * bytespp, size);
+ } else {
+ size = w * h * bytespp;
+ }
+ }
+
+ if (!size)
+ return 0;
+
+ return omapfb_alloc_fbmem(fbi, size, paddr);
+}
+
+static enum omap_color_mode fb_format_to_dss_mode(enum omapfb_color_format fmt)
+{
+ enum omap_color_mode mode;
+
+ switch (fmt) {
+ case OMAPFB_COLOR_RGB565:
+ mode = OMAP_DSS_COLOR_RGB16;
+ break;
+ case OMAPFB_COLOR_YUV422:
+ mode = OMAP_DSS_COLOR_YUV2;
+ break;
+ case OMAPFB_COLOR_CLUT_8BPP:
+ mode = OMAP_DSS_COLOR_CLUT8;
+ break;
+ case OMAPFB_COLOR_CLUT_4BPP:
+ mode = OMAP_DSS_COLOR_CLUT4;
+ break;
+ case OMAPFB_COLOR_CLUT_2BPP:
+ mode = OMAP_DSS_COLOR_CLUT2;
+ break;
+ case OMAPFB_COLOR_CLUT_1BPP:
+ mode = OMAP_DSS_COLOR_CLUT1;
+ break;
+ case OMAPFB_COLOR_RGB444:
+ mode = OMAP_DSS_COLOR_RGB12U;
+ break;
+ case OMAPFB_COLOR_YUY422:
+ mode = OMAP_DSS_COLOR_UYVY;
+ break;
+ case OMAPFB_COLOR_ARGB16:
+ mode = OMAP_DSS_COLOR_ARGB16;
+ break;
+ case OMAPFB_COLOR_RGB24U:
+ mode = OMAP_DSS_COLOR_RGB24U;
+ break;
+ case OMAPFB_COLOR_RGB24P:
+ mode = OMAP_DSS_COLOR_RGB24P;
+ break;
+ case OMAPFB_COLOR_ARGB32:
+ mode = OMAP_DSS_COLOR_ARGB32;
+ break;
+ case OMAPFB_COLOR_RGBA32:
+ mode = OMAP_DSS_COLOR_RGBA32;
+ break;
+ case OMAPFB_COLOR_RGBX32:
+ mode = OMAP_DSS_COLOR_RGBX32;
+ break;
+ default:
+ mode = -EINVAL;
+ }
+
+ return mode;
+}
+
+static int omapfb_parse_vram_param(const char *param, int max_entries,
+ unsigned long *sizes, unsigned long *paddrs)
+{
+ int fbnum;
+ unsigned long size;
+ unsigned long paddr = 0;
+ char *p, *start;
+
+ start = (char *)param;
+
+ while (1) {
+ p = start;
+
+ fbnum = simple_strtoul(p, &p, 10);
+
+ if (p == param)
+ return -EINVAL;
+
+ if (*p != ':')
+ return -EINVAL;
+
+ if (fbnum >= max_entries)
+ return -EINVAL;
+
+ size = memparse(p + 1, &p);
+
+ if (!size)
+ return -EINVAL;
+
+ paddr = 0;
+
+ if (*p == '@') {
+ paddr = simple_strtoul(p + 1, &p, 16);
+
+ if (!paddr)
+ return -EINVAL;
+
+ }
+
+ paddrs[fbnum] = paddr;
+ sizes[fbnum] = size;
+
+ if (*p == 0)
+ break;
+
+ if (*p != ',')
+ return -EINVAL;
+
+ ++p;
+
+ start = p;
+ }
+
+ return 0;
+}
+
+static int omapfb_allocate_all_fbs(struct omapfb2_device *fbdev)
+{
+ int i, r;
+ unsigned long vram_sizes[10];
+ unsigned long vram_paddrs[10];
+
+ memset(&vram_sizes, 0, sizeof(vram_sizes));
+ memset(&vram_paddrs, 0, sizeof(vram_paddrs));
+
+ if (def_vram && omapfb_parse_vram_param(def_vram, 10,
+ vram_sizes, vram_paddrs)) {
+ dev_err(fbdev->dev, "failed to parse vram parameter\n");
+
+ memset(&vram_sizes, 0, sizeof(vram_sizes));
+ memset(&vram_paddrs, 0, sizeof(vram_paddrs));
+ }
+
+ if (fbdev->dev->platform_data) {
+ struct omapfb_platform_data *opd;
+ opd = fbdev->dev->platform_data;
+ for (i = 0; i < opd->mem_desc.region_cnt; ++i) {
+ if (!vram_sizes[i]) {
+ unsigned long size;
+ unsigned long paddr;
+
+ size = opd->mem_desc.region[i].size;
+ paddr = opd->mem_desc.region[i].paddr;
+
+ vram_sizes[i] = size;
+ vram_paddrs[i] = paddr;
+ }
+ }
+ }
+
+ for (i = 0; i < fbdev->num_fbs; i++) {
+ /* allocate memory automatically only for fb0, or if
+ * excplicitly defined with vram or plat data option */
+ if (i == 0 || vram_sizes[i] != 0) {
+ r = omapfb_alloc_fbmem_display(fbdev->fbs[i],
+ vram_sizes[i], vram_paddrs[i]);
+
+ if (r)
+ return r;
+ }
+ }
+
+ for (i = 0; i < fbdev->num_fbs; i++) {
+ struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
+ struct omapfb2_mem_region *rg;
+ rg = &ofbi->region;
+
+ DBG("region%d phys %08x virt %p size=%lu\n",
+ i,
+ rg->paddr,
+ rg->vaddr,
+ rg->size);
+ }
+
+ return 0;
+}
+
+int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_device *fbdev = ofbi->fbdev;
+ struct omap_dss_device *display = fb2display(fbi);
+ struct omapfb2_mem_region *rg = &ofbi->region;
+ unsigned long old_size = rg->size;
+ unsigned long old_paddr = rg->paddr;
+ int old_type = rg->type;
+ int r;
+
+ if (type > OMAPFB_MEMTYPE_MAX)
+ return -EINVAL;
+
+ size = PAGE_ALIGN(size);
+
+ if (old_size == size && old_type == type)
+ return 0;
+
+ if (display && display->sync)
+ display->sync(display);
+
+ omapfb_free_fbmem(fbi);
+
+ if (size == 0) {
+ clear_fb_info(fbi);
+ return 0;
+ }
+
+ r = omapfb_alloc_fbmem(fbi, size, 0);
+
+ if (r) {
+ if (old_size)
+ omapfb_alloc_fbmem(fbi, old_size, old_paddr);
+
+ if (rg->size == 0)
+ clear_fb_info(fbi);
+
+ return r;
+ }
+
+ if (old_size == size)
+ return 0;
+
+ if (old_size == 0) {
+ DBG("initializing fb %d\n", ofbi->id);
+ r = omapfb_fb_init(fbdev, fbi);
+ if (r) {
+ DBG("omapfb_fb_init failed\n");
+ goto err;
+ }
+ r = omapfb_apply_changes(fbi, 1);
+ if (r) {
+ DBG("omapfb_apply_changes failed\n");
+ goto err;
+ }
+ } else {
+ struct fb_var_screeninfo new_var;
+ memcpy(&new_var, &fbi->var, sizeof(new_var));
+ r = check_fb_var(fbi, &new_var);
+ if (r)
+ goto err;
+ memcpy(&fbi->var, &new_var, sizeof(fbi->var));
+ set_fb_fix(fbi);
+ r = setup_vrfb_rotation(fbi);
+ if (r)
+ goto err;
+ }
+
+ return 0;
+err:
+ omapfb_free_fbmem(fbi);
+ clear_fb_info(fbi);
+ return r;
+}
+
+/* initialize fb_info, var, fix to something sane based on the display */
+static int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi)
+{
+ struct fb_var_screeninfo *var = &fbi->var;
+ struct omap_dss_device *display = fb2display(fbi);
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ int r = 0;
+
+ fbi->fbops = &omapfb_ops;
+ fbi->flags = FBINFO_FLAG_DEFAULT;
+ fbi->pseudo_palette = fbdev->pseudo_palette;
+
+ if (ofbi->region.size == 0) {
+ clear_fb_info(fbi);
+ return 0;
+ }
+
+ var->nonstd = 0;
+ var->bits_per_pixel = 0;
+
+ var->rotate = def_rotate;
+
+ /*
+ * Check if there is a default color format set in the board file,
+ * and use this format instead the default deducted from the
+ * display bpp.
+ */
+ if (fbdev->dev->platform_data) {
+ struct omapfb_platform_data *opd;
+ int id = ofbi->id;
+
+ opd = fbdev->dev->platform_data;
+ if (opd->mem_desc.region[id].format_used) {
+ enum omap_color_mode mode;
+ enum omapfb_color_format format;
+
+ format = opd->mem_desc.region[id].format;
+ mode = fb_format_to_dss_mode(format);
+ if (mode < 0) {
+ r = mode;
+ goto err;
+ }
+ r = dss_mode_to_fb_mode(mode, var);
+ if (r < 0)
+ goto err;
+ }
+ }
+
+ if (display) {
+ u16 w, h;
+ int rotation = (var->rotate + ofbi->rotation[0]) % 4;
+
+ display->get_resolution(display, &w, &h);
+
+ if (rotation == FB_ROTATE_CW ||
+ rotation == FB_ROTATE_CCW) {
+ var->xres = h;
+ var->yres = w;
+ } else {
+ var->xres = w;
+ var->yres = h;
+ }
+
+ var->xres_virtual = var->xres;
+ var->yres_virtual = var->yres;
+
+ if (!var->bits_per_pixel) {
+ switch (display->get_recommended_bpp(display)) {
+ case 16:
+ var->bits_per_pixel = 16;
+ break;
+ case 24:
+ var->bits_per_pixel = 32;
+ break;
+ default:
+ dev_err(fbdev->dev, "illegal display "
+ "bpp\n");
+ return -EINVAL;
+ }
+ }
+ } else {
+ /* if there's no display, let's just guess some basic values */
+ var->xres = 320;
+ var->yres = 240;
+ var->xres_virtual = var->xres;
+ var->yres_virtual = var->yres;
+ if (!var->bits_per_pixel)
+ var->bits_per_pixel = 16;
+ }
+
+ r = check_fb_var(fbi, var);
+ if (r)
+ goto err;
+
+ set_fb_fix(fbi);
+ r = setup_vrfb_rotation(fbi);
+ if (r)
+ goto err;
+
+ r = fb_alloc_cmap(&fbi->cmap, 256, 0);
+ if (r)
+ dev_err(fbdev->dev, "unable to allocate color map memory\n");
+
+err:
+ return r;
+}
+
+static void fbinfo_cleanup(struct omapfb2_device *fbdev, struct fb_info *fbi)
+{
+ fb_dealloc_cmap(&fbi->cmap);
+}
+
+
+static void omapfb_free_resources(struct omapfb2_device *fbdev)
+{
+ int i;
+
+ DBG("free_resources\n");
+
+ if (fbdev == NULL)
+ return;
+
+ for (i = 0; i < fbdev->num_fbs; i++)
+ unregister_framebuffer(fbdev->fbs[i]);
+
+ /* free the reserved fbmem */
+ omapfb_free_all_fbmem(fbdev);
+
+ for (i = 0; i < fbdev->num_fbs; i++) {
+ fbinfo_cleanup(fbdev, fbdev->fbs[i]);
+ framebuffer_release(fbdev->fbs[i]);
+ }
+
+ for (i = 0; i < fbdev->num_displays; i++) {
+ if (fbdev->displays[i]->state != OMAP_DSS_DISPLAY_DISABLED)
+ fbdev->displays[i]->disable(fbdev->displays[i]);
+
+ omap_dss_put_device(fbdev->displays[i]);
+ }
+
+ dev_set_drvdata(fbdev->dev, NULL);
+ kfree(fbdev);
+}
+
+static int omapfb_create_framebuffers(struct omapfb2_device *fbdev)
+{
+ int r, i;
+
+ fbdev->num_fbs = 0;
+
+ DBG("create %d framebuffers\n", CONFIG_FB_OMAP2_NUM_FBS);
+
+ /* allocate fb_infos */
+ for (i = 0; i < CONFIG_FB_OMAP2_NUM_FBS; i++) {
+ struct fb_info *fbi;
+ struct omapfb_info *ofbi;
+
+ fbi = framebuffer_alloc(sizeof(struct omapfb_info),
+ fbdev->dev);
+
+ if (fbi == NULL) {
+ dev_err(fbdev->dev,
+ "unable to allocate memory for plane info\n");
+ return -ENOMEM;
+ }
+
+ clear_fb_info(fbi);
+
+ fbdev->fbs[i] = fbi;
+
+ ofbi = FB2OFB(fbi);
+ ofbi->fbdev = fbdev;
+ ofbi->id = i;
+
+ /* assign these early, so that fb alloc can use them */
+ ofbi->rotation_type = def_vrfb ? OMAP_DSS_ROT_VRFB :
+ OMAP_DSS_ROT_DMA;
+ ofbi->mirror = def_mirror;
+
+ fbdev->num_fbs++;
+ }
+
+ DBG("fb_infos allocated\n");
+
+ /* assign overlays for the fbs */
+ for (i = 0; i < min(fbdev->num_fbs, fbdev->num_overlays); i++) {
+ struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
+
+ ofbi->overlays[0] = fbdev->overlays[i];
+ ofbi->num_overlays = 1;
+ }
+
+ /* allocate fb memories */
+ r = omapfb_allocate_all_fbs(fbdev);
+ if (r) {
+ dev_err(fbdev->dev, "failed to allocate fbmem\n");
+ return r;
+ }
+
+ DBG("fbmems allocated\n");
+
+ /* setup fb_infos */
+ for (i = 0; i < fbdev->num_fbs; i++) {
+ r = omapfb_fb_init(fbdev, fbdev->fbs[i]);
+ if (r) {
+ dev_err(fbdev->dev, "failed to setup fb_info\n");
+ return r;
+ }
+ }
+
+ DBG("fb_infos initialized\n");
+
+ for (i = 0; i < fbdev->num_fbs; i++) {
+ r = register_framebuffer(fbdev->fbs[i]);
+ if (r != 0) {
+ dev_err(fbdev->dev,
+ "registering framebuffer %d failed\n", i);
+ return r;
+ }
+ }
+
+ DBG("framebuffers registered\n");
+
+ for (i = 0; i < fbdev->num_fbs; i++) {
+ r = omapfb_apply_changes(fbdev->fbs[i], 1);
+ if (r) {
+ dev_err(fbdev->dev, "failed to change mode\n");
+ return r;
+ }
+ }
+
+ DBG("create sysfs for fbs\n");
+ r = omapfb_create_sysfs(fbdev);
+ if (r) {
+ dev_err(fbdev->dev, "failed to create sysfs entries\n");
+ return r;
+ }
+
+ /* Enable fb0 */
+ if (fbdev->num_fbs > 0) {
+ struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[0]);
+
+ if (ofbi->num_overlays > 0) {
+ struct omap_overlay *ovl = ofbi->overlays[0];
+
+ r = omapfb_overlay_enable(ovl, 1);
+
+ if (r) {
+ dev_err(fbdev->dev,
+ "failed to enable overlay\n");
+ return r;
+ }
+ }
+ }
+
+ DBG("create_framebuffers done\n");
+
+ return 0;
+}
+
+static int omapfb_mode_to_timings(const char *mode_str,
+ struct omap_video_timings *timings, u8 *bpp)
+{
+ struct fb_info fbi;
+ struct fb_var_screeninfo var;
+ struct fb_ops fbops;
+ int r;
+
+#ifdef CONFIG_OMAP2_DSS_VENC
+ if (strcmp(mode_str, "pal") == 0) {
+ *timings = omap_dss_pal_timings;
+ *bpp = 0;
+ return 0;
+ } else if (strcmp(mode_str, "ntsc") == 0) {
+ *timings = omap_dss_ntsc_timings;
+ *bpp = 0;
+ return 0;
+ }
+#endif
+
+ /* this is quite a hack, but I wanted to use the modedb and for
+ * that we need fb_info and var, so we create dummy ones */
+
+ memset(&fbi, 0, sizeof(fbi));
+ memset(&var, 0, sizeof(var));
+ memset(&fbops, 0, sizeof(fbops));
+ fbi.fbops = &fbops;
+
+ r = fb_find_mode(&var, &fbi, mode_str, NULL, 0, NULL, 24);
+
+ if (r != 0) {
+ timings->pixel_clock = PICOS2KHZ(var.pixclock);
+ timings->hfp = var.left_margin;
+ timings->hbp = var.right_margin;
+ timings->vfp = var.upper_margin;
+ timings->vbp = var.lower_margin;
+ timings->hsw = var.hsync_len;
+ timings->vsw = var.vsync_len;
+ timings->x_res = var.xres;
+ timings->y_res = var.yres;
+
+ switch (var.bits_per_pixel) {
+ case 16:
+ *bpp = 16;
+ break;
+ case 24:
+ case 32:
+ default:
+ *bpp = 24;
+ break;
+ }
+
+ return 0;
+ } else {
+ return -EINVAL;
+ }
+}
+
+static int omapfb_set_def_mode(struct omap_dss_device *display, char *mode_str)
+{
+ int r;
+ u8 bpp;
+ struct omap_video_timings timings;
+
+ r = omapfb_mode_to_timings(mode_str, &timings, &bpp);
+ if (r)
+ return r;
+
+ display->panel.recommended_bpp = bpp;
+
+ if (!display->check_timings || !display->set_timings)
+ return -EINVAL;
+
+ r = display->check_timings(display, &timings);
+ if (r)
+ return r;
+
+ display->set_timings(display, &timings);
+
+ return 0;
+}
+
+static int omapfb_parse_def_modes(struct omapfb2_device *fbdev)
+{
+ char *str, *options, *this_opt;
+ int r = 0;
+
+ str = kmalloc(strlen(def_mode) + 1, GFP_KERNEL);
+ strcpy(str, def_mode);
+ options = str;
+
+ while (!r && (this_opt = strsep(&options, ",")) != NULL) {
+ char *p, *display_str, *mode_str;
+ struct omap_dss_device *display;
+ int i;
+
+ p = strchr(this_opt, ':');
+ if (!p) {
+ r = -EINVAL;
+ break;
+ }
+
+ *p = 0;
+ display_str = this_opt;
+ mode_str = p + 1;
+
+ display = NULL;
+ for (i = 0; i < fbdev->num_displays; ++i) {
+ if (strcmp(fbdev->displays[i]->name,
+ display_str) == 0) {
+ display = fbdev->displays[i];
+ break;
+ }
+ }
+
+ if (!display) {
+ r = -EINVAL;
+ break;
+ }
+
+ r = omapfb_set_def_mode(display, mode_str);
+ if (r)
+ break;
+ }
+
+ kfree(str);
+
+ return r;
+}
+
+static int omapfb_probe(struct platform_device *pdev)
+{
+ struct omapfb2_device *fbdev = NULL;
+ int r = 0;
+ int i;
+ struct omap_overlay *ovl;
+ struct omap_dss_device *def_display;
+ struct omap_dss_device *dssdev;
+
+ DBG("omapfb_probe\n");
+
+ if (pdev->num_resources != 0) {
+ dev_err(&pdev->dev, "probed for an unknown device\n");
+ r = -ENODEV;
+ goto err0;
+ }
+
+ fbdev = kzalloc(sizeof(struct omapfb2_device), GFP_KERNEL);
+ if (fbdev == NULL) {
+ r = -ENOMEM;
+ goto err0;
+ }
+
+ mutex_init(&fbdev->mtx);
+
+ fbdev->dev = &pdev->dev;
+ platform_set_drvdata(pdev, fbdev);
+
+ fbdev->num_displays = 0;
+ dssdev = NULL;
+ for_each_dss_dev(dssdev) {
+ omap_dss_get_device(dssdev);
+ fbdev->displays[fbdev->num_displays++] = dssdev;
+ }
+
+ if (fbdev->num_displays == 0) {
+ dev_err(&pdev->dev, "no displays\n");
+ r = -EINVAL;
+ goto cleanup;
+ }
+
+ fbdev->num_overlays = omap_dss_get_num_overlays();
+ for (i = 0; i < fbdev->num_overlays; i++)
+ fbdev->overlays[i] = omap_dss_get_overlay(i);
+
+ fbdev->num_managers = omap_dss_get_num_overlay_managers();
+ for (i = 0; i < fbdev->num_managers; i++)
+ fbdev->managers[i] = omap_dss_get_overlay_manager(i);
+
+ if (def_mode && strlen(def_mode) > 0) {
+ if (omapfb_parse_def_modes(fbdev))
+ dev_warn(&pdev->dev, "cannot parse default modes\n");
+ }
+
+ r = omapfb_create_framebuffers(fbdev);
+ if (r)
+ goto cleanup;
+
+ for (i = 0; i < fbdev->num_managers; i++) {
+ struct omap_overlay_manager *mgr;
+ mgr = fbdev->managers[i];
+ r = mgr->apply(mgr);
+ if (r)
+ dev_warn(fbdev->dev, "failed to apply dispc config\n");
+ }
+
+ DBG("mgr->apply'ed\n");
+
+ /* gfx overlay should be the default one. find a display
+ * connected to that, and use it as default display */
+ ovl = omap_dss_get_overlay(0);
+ if (ovl->manager && ovl->manager->device) {
+ def_display = ovl->manager->device;
+ } else {
+ dev_warn(&pdev->dev, "cannot find default display\n");
+ def_display = NULL;
+ }
+
+ if (def_display) {
+#ifndef CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE
+ u16 w, h;
+#endif
+ r = def_display->enable(def_display);
+ if (r)
+ dev_warn(fbdev->dev, "Failed to enable display '%s'\n",
+ def_display->name);
+
+ /* set the update mode */
+ if (def_display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
+#ifdef CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE
+ if (def_display->enable_te)
+ def_display->enable_te(def_display, 1);
+ if (def_display->set_update_mode)
+ def_display->set_update_mode(def_display,
+ OMAP_DSS_UPDATE_AUTO);
+#else /* MANUAL_UPDATE */
+ if (def_display->enable_te)
+ def_display->enable_te(def_display, 0);
+ if (def_display->set_update_mode)
+ def_display->set_update_mode(def_display,
+ OMAP_DSS_UPDATE_MANUAL);
+
+ def_display->get_resolution(def_display, &w, &h);
+ def_display->update(def_display, 0, 0, w, h);
+#endif
+ } else {
+ if (def_display->set_update_mode)
+ def_display->set_update_mode(def_display,
+ OMAP_DSS_UPDATE_AUTO);
+ }
+ }
+
+ return 0;
+
+cleanup:
+ omapfb_free_resources(fbdev);
+err0:
+ dev_err(&pdev->dev, "failed to setup omapfb\n");
+ return r;
+}
+
+static int omapfb_remove(struct platform_device *pdev)
+{
+ struct omapfb2_device *fbdev = platform_get_drvdata(pdev);
+
+ /* FIXME: wait till completion of pending events */
+
+ omapfb_remove_sysfs(fbdev);
+
+ omapfb_free_resources(fbdev);
+
+ return 0;
+}
+
+static struct platform_driver omapfb_driver = {
+ .probe = omapfb_probe,
+ .remove = omapfb_remove,
+ .driver = {
+ .name = "omapfb",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init omapfb_init(void)
+{
+ DBG("omapfb_init\n");
+
+ if (platform_driver_register(&omapfb_driver)) {
+ printk(KERN_ERR "failed to register omapfb driver\n");
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static void __exit omapfb_exit(void)
+{
+ DBG("omapfb_exit\n");
+ platform_driver_unregister(&omapfb_driver);
+}
+
+module_param_named(mode, def_mode, charp, 0);
+module_param_named(vram, def_vram, charp, 0);
+module_param_named(rotate, def_rotate, int, 0);
+module_param_named(vrfb, def_vrfb, bool, 0);
+module_param_named(mirror, def_mirror, bool, 0);
+
+/* late_initcall to let panel/ctrl drivers loaded first.
+ * I guess better option would be a more dynamic approach,
+ * so that omapfb reacts to new panels when they are loaded */
+late_initcall(omapfb_init);
+/*module_init(omapfb_init);*/
+module_exit(omapfb_exit);
+
+MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>");
+MODULE_DESCRIPTION("OMAP2/3 Framebuffer");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+/*
+ * linux/drivers/video/omap2/omapfb-sysfs.c
+ *
+ * Copyright (C) 2008 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * Some code and ideas taken from drivers/video/omap/ driver
+ * by Imre Deak.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/fb.h>
+#include <linux/sysfs.h>
+#include <linux/device.h>
+#include <linux/uaccess.h>
+#include <linux/platform_device.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/omapfb.h>
+
+#include <plat/display.h>
+#include <plat/vrfb.h>
+
+#include "omapfb.h"
+
+static ssize_t show_rotate_type(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct fb_info *fbi = dev_get_drvdata(dev);
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", ofbi->rotation_type);
+}
+
+static ssize_t store_rotate_type(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct fb_info *fbi = dev_get_drvdata(dev);
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ enum omap_dss_rotation_type rot_type;
+ int r;
+
+ rot_type = simple_strtoul(buf, NULL, 0);
+
+ if (rot_type != OMAP_DSS_ROT_DMA && rot_type != OMAP_DSS_ROT_VRFB)
+ return -EINVAL;
+
+ lock_fb_info(fbi);
+
+ r = 0;
+ if (rot_type == ofbi->rotation_type)
+ goto out;
+
+ if (ofbi->region.size) {
+ r = -EBUSY;
+ goto out;
+ }
+
+ ofbi->rotation_type = rot_type;
+
+ /*
+ * Since the VRAM for this FB is not allocated at the moment we don't
+ * need to do any further parameter checking at this point.
+ */
+out:
+ unlock_fb_info(fbi);
+
+ return r ? r : count;
+}
+
+
+static ssize_t show_mirror(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct fb_info *fbi = dev_get_drvdata(dev);
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", ofbi->mirror);
+}
+
+static ssize_t store_mirror(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct fb_info *fbi = dev_get_drvdata(dev);
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ bool mirror;
+ int r;
+ struct fb_var_screeninfo new_var;
+
+ mirror = simple_strtoul(buf, NULL, 0);
+
+ if (mirror != 0 && mirror != 1)
+ return -EINVAL;
+
+ lock_fb_info(fbi);
+
+ ofbi->mirror = mirror;
+
+ memcpy(&new_var, &fbi->var, sizeof(new_var));
+ r = check_fb_var(fbi, &new_var);
+ if (r)
+ goto out;
+ memcpy(&fbi->var, &new_var, sizeof(fbi->var));
+
+ set_fb_fix(fbi);
+
+ r = omapfb_apply_changes(fbi, 0);
+ if (r)
+ goto out;
+
+ r = count;
+out:
+ unlock_fb_info(fbi);
+
+ return r;
+}
+
+static ssize_t show_overlays(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct fb_info *fbi = dev_get_drvdata(dev);
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_device *fbdev = ofbi->fbdev;
+ ssize_t l = 0;
+ int t;
+
+ omapfb_lock(fbdev);
+ lock_fb_info(fbi);
+
+ for (t = 0; t < ofbi->num_overlays; t++) {
+ struct omap_overlay *ovl = ofbi->overlays[t];
+ int ovlnum;
+
+ for (ovlnum = 0; ovlnum < fbdev->num_overlays; ++ovlnum)
+ if (ovl == fbdev->overlays[ovlnum])
+ break;
+
+ l += snprintf(buf + l, PAGE_SIZE - l, "%s%d",
+ t == 0 ? "" : ",", ovlnum);
+ }
+
+ l += snprintf(buf + l, PAGE_SIZE - l, "\n");
+
+ unlock_fb_info(fbi);
+ omapfb_unlock(fbdev);
+
+ return l;
+}
+
+static struct omapfb_info *get_overlay_fb(struct omapfb2_device *fbdev,
+ struct omap_overlay *ovl)
+{
+ int i, t;
+
+ for (i = 0; i < fbdev->num_fbs; i++) {
+ struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
+
+ for (t = 0; t < ofbi->num_overlays; t++) {
+ if (ofbi->overlays[t] == ovl)
+ return ofbi;
+ }
+ }
+
+ return NULL;
+}
+
+static ssize_t store_overlays(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct fb_info *fbi = dev_get_drvdata(dev);
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omapfb2_device *fbdev = ofbi->fbdev;
+ struct omap_overlay *ovls[OMAPFB_MAX_OVL_PER_FB];
+ struct omap_overlay *ovl;
+ int num_ovls, r, i;
+ int len;
+ bool added = false;
+
+ num_ovls = 0;
+
+ len = strlen(buf);
+ if (buf[len - 1] == '\n')
+ len = len - 1;
+
+ omapfb_lock(fbdev);
+ lock_fb_info(fbi);
+
+ if (len > 0) {
+ char *p = (char *)buf;
+ int ovlnum;
+
+ while (p < buf + len) {
+ int found;
+ if (num_ovls == OMAPFB_MAX_OVL_PER_FB) {
+ r = -EINVAL;
+ goto out;
+ }
+
+ ovlnum = simple_strtoul(p, &p, 0);
+ if (ovlnum > fbdev->num_overlays) {
+ r = -EINVAL;
+ goto out;
+ }
+
+ found = 0;
+ for (i = 0; i < num_ovls; ++i) {
+ if (ovls[i] == fbdev->overlays[ovlnum]) {
+ found = 1;
+ break;
+ }
+ }
+
+ if (!found)
+ ovls[num_ovls++] = fbdev->overlays[ovlnum];
+
+ p++;
+ }
+ }
+
+ for (i = 0; i < num_ovls; ++i) {
+ struct omapfb_info *ofbi2 = get_overlay_fb(fbdev, ovls[i]);
+ if (ofbi2 && ofbi2 != ofbi) {
+ dev_err(fbdev->dev, "overlay already in use\n");
+ r = -EINVAL;
+ goto out;
+ }
+ }
+
+ /* detach unused overlays */
+ for (i = 0; i < ofbi->num_overlays; ++i) {
+ int t, found;
+
+ ovl = ofbi->overlays[i];
+
+ found = 0;
+
+ for (t = 0; t < num_ovls; ++t) {
+ if (ovl == ovls[t]) {
+ found = 1;
+ break;
+ }
+ }
+
+ if (found)
+ continue;
+
+ DBG("detaching %d\n", ofbi->overlays[i]->id);
+
+ omapfb_overlay_enable(ovl, 0);
+
+ if (ovl->manager)
+ ovl->manager->apply(ovl->manager);
+
+ for (t = i + 1; t < ofbi->num_overlays; t++) {
+ ofbi->rotation[t-1] = ofbi->rotation[t];
+ ofbi->overlays[t-1] = ofbi->overlays[t];
+ }
+
+ ofbi->num_overlays--;
+ i--;
+ }
+
+ for (i = 0; i < num_ovls; ++i) {
+ int t, found;
+
+ ovl = ovls[i];
+
+ found = 0;
+
+ for (t = 0; t < ofbi->num_overlays; ++t) {
+ if (ovl == ofbi->overlays[t]) {
+ found = 1;
+ break;
+ }
+ }
+
+ if (found)
+ continue;
+ ofbi->rotation[ofbi->num_overlays] = 0;
+ ofbi->overlays[ofbi->num_overlays++] = ovl;
+
+ added = true;
+ }
+
+ if (added) {
+ r = omapfb_apply_changes(fbi, 0);
+ if (r)
+ goto out;
+ }
+
+ r = count;
+out:
+ unlock_fb_info(fbi);
+ omapfb_unlock(fbdev);
+
+ return r;
+}
+
+static ssize_t show_overlays_rotate(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct fb_info *fbi = dev_get_drvdata(dev);
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ ssize_t l = 0;
+ int t;
+
+ lock_fb_info(fbi);
+
+ for (t = 0; t < ofbi->num_overlays; t++) {
+ l += snprintf(buf + l, PAGE_SIZE - l, "%s%d",
+ t == 0 ? "" : ",", ofbi->rotation[t]);
+ }
+
+ l += snprintf(buf + l, PAGE_SIZE - l, "\n");
+
+ unlock_fb_info(fbi);
+
+ return l;
+}
+
+static ssize_t store_overlays_rotate(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct fb_info *fbi = dev_get_drvdata(dev);
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ int num_ovls = 0, r, i;
+ int len;
+ bool changed = false;
+ u8 rotation[OMAPFB_MAX_OVL_PER_FB];
+
+ len = strlen(buf);
+ if (buf[len - 1] == '\n')
+ len = len - 1;
+
+ lock_fb_info(fbi);
+
+ if (len > 0) {
+ char *p = (char *)buf;
+
+ while (p < buf + len) {
+ int rot;
+
+ if (num_ovls == ofbi->num_overlays) {
+ r = -EINVAL;
+ goto out;
+ }
+
+ rot = simple_strtoul(p, &p, 0);
+ if (rot < 0 || rot > 3) {
+ r = -EINVAL;
+ goto out;
+ }
+
+ if (ofbi->rotation[num_ovls] != rot)
+ changed = true;
+
+ rotation[num_ovls++] = rot;
+
+ p++;
+ }
+ }
+
+ if (num_ovls != ofbi->num_overlays) {
+ r = -EINVAL;
+ goto out;
+ }
+
+ if (changed) {
+ for (i = 0; i < num_ovls; ++i)
+ ofbi->rotation[i] = rotation[i];
+
+ r = omapfb_apply_changes(fbi, 0);
+ if (r)
+ goto out;
+
+ /* FIXME error handling? */
+ }
+
+ r = count;
+out:
+ unlock_fb_info(fbi);
+
+ return r;
+}
+
+static ssize_t show_size(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct fb_info *fbi = dev_get_drvdata(dev);
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+
+ return snprintf(buf, PAGE_SIZE, "%lu\n", ofbi->region.size);
+}
+
+static ssize_t store_size(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct fb_info *fbi = dev_get_drvdata(dev);
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ unsigned long size;
+ int r;
+ int i;
+
+ size = PAGE_ALIGN(simple_strtoul(buf, NULL, 0));
+
+ lock_fb_info(fbi);
+
+ for (i = 0; i < ofbi->num_overlays; i++) {
+ if (ofbi->overlays[i]->info.enabled) {
+ r = -EBUSY;
+ goto out;
+ }
+ }
+
+ if (size != ofbi->region.size) {
+ r = omapfb_realloc_fbmem(fbi, size, ofbi->region.type);
+ if (r) {
+ dev_err(dev, "realloc fbmem failed\n");
+ goto out;
+ }
+ }
+
+ r = count;
+out:
+ unlock_fb_info(fbi);
+
+ return r;
+}
+
+static ssize_t show_phys(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct fb_info *fbi = dev_get_drvdata(dev);
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+
+ return snprintf(buf, PAGE_SIZE, "%0x\n", ofbi->region.paddr);
+}
+
+static ssize_t show_virt(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct fb_info *fbi = dev_get_drvdata(dev);
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+
+ return snprintf(buf, PAGE_SIZE, "%p\n", ofbi->region.vaddr);
+}
+
+static struct device_attribute omapfb_attrs[] = {
+ __ATTR(rotate_type, S_IRUGO | S_IWUSR, show_rotate_type,
+ store_rotate_type),
+ __ATTR(mirror, S_IRUGO | S_IWUSR, show_mirror, store_mirror),
+ __ATTR(size, S_IRUGO | S_IWUSR, show_size, store_size),
+ __ATTR(overlays, S_IRUGO | S_IWUSR, show_overlays, store_overlays),
+ __ATTR(overlays_rotate, S_IRUGO | S_IWUSR, show_overlays_rotate,
+ store_overlays_rotate),
+ __ATTR(phys_addr, S_IRUGO, show_phys, NULL),
+ __ATTR(virt_addr, S_IRUGO, show_virt, NULL),
+};
+
+int omapfb_create_sysfs(struct omapfb2_device *fbdev)
+{
+ int i;
+ int r;
+
+ DBG("create sysfs for fbs\n");
+ for (i = 0; i < fbdev->num_fbs; i++) {
+ int t;
+ for (t = 0; t < ARRAY_SIZE(omapfb_attrs); t++) {
+ r = device_create_file(fbdev->fbs[i]->dev,
+ &omapfb_attrs[t]);
+
+ if (r) {
+ dev_err(fbdev->dev, "failed to create sysfs "
+ "file\n");
+ return r;
+ }
+ }
+ }
+
+ return 0;
+}
+
+void omapfb_remove_sysfs(struct omapfb2_device *fbdev)
+{
+ int i, t;
+
+ DBG("remove sysfs for fbs\n");
+ for (i = 0; i < fbdev->num_fbs; i++) {
+ for (t = 0; t < ARRAY_SIZE(omapfb_attrs); t++)
+ device_remove_file(fbdev->fbs[i]->dev,
+ &omapfb_attrs[t]);
+ }
+}
+
--- /dev/null
+/*
+ * linux/drivers/video/omap2/omapfb.h
+ *
+ * Copyright (C) 2008 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * Some code and ideas taken from drivers/video/omap/ driver
+ * by Imre Deak.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __DRIVERS_VIDEO_OMAP2_OMAPFB_H__
+#define __DRIVERS_VIDEO_OMAP2_OMAPFB_H__
+
+#ifdef CONFIG_FB_OMAP2_DEBUG_SUPPORT
+#define DEBUG
+#endif
+
+#include <plat/display.h>
+
+#ifdef DEBUG
+extern unsigned int omapfb_debug;
+#define DBG(format, ...) \
+ if (omapfb_debug) \
+ printk(KERN_DEBUG "OMAPFB: " format, ## __VA_ARGS__)
+#else
+#define DBG(format, ...)
+#endif
+
+#define FB2OFB(fb_info) ((struct omapfb_info *)(fb_info->par))
+
+/* max number of overlays to which a framebuffer data can be direct */
+#define OMAPFB_MAX_OVL_PER_FB 3
+
+struct omapfb2_mem_region {
+ u32 paddr;
+ void __iomem *vaddr;
+ struct vrfb vrfb;
+ unsigned long size;
+ u8 type; /* OMAPFB_PLANE_MEM_* */
+ bool alloc; /* allocated by the driver */
+ bool map; /* kernel mapped by the driver */
+};
+
+/* appended to fb_info */
+struct omapfb_info {
+ int id;
+ struct omapfb2_mem_region region;
+ atomic_t map_count;
+ int num_overlays;
+ struct omap_overlay *overlays[OMAPFB_MAX_OVL_PER_FB];
+ struct omapfb2_device *fbdev;
+ enum omap_dss_rotation_type rotation_type;
+ u8 rotation[OMAPFB_MAX_OVL_PER_FB];
+ bool mirror;
+};
+
+struct omapfb2_device {
+ struct device *dev;
+ struct mutex mtx;
+
+ u32 pseudo_palette[17];
+
+ int state;
+
+ unsigned num_fbs;
+ struct fb_info *fbs[10];
+
+ unsigned num_displays;
+ struct omap_dss_device *displays[10];
+ unsigned num_overlays;
+ struct omap_overlay *overlays[10];
+ unsigned num_managers;
+ struct omap_overlay_manager *managers[10];
+};
+
+struct omapfb_colormode {
+ enum omap_color_mode dssmode;
+ u32 bits_per_pixel;
+ u32 nonstd;
+ struct fb_bitfield red;
+ struct fb_bitfield green;
+ struct fb_bitfield blue;
+ struct fb_bitfield transp;
+};
+
+void set_fb_fix(struct fb_info *fbi);
+int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var);
+int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type);
+int omapfb_apply_changes(struct fb_info *fbi, int init);
+
+int omapfb_create_sysfs(struct omapfb2_device *fbdev);
+void omapfb_remove_sysfs(struct omapfb2_device *fbdev);
+
+int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg);
+
+int dss_mode_to_fb_mode(enum omap_color_mode dssmode,
+ struct fb_var_screeninfo *var);
+
+/* find the display connected to this fb, if any */
+static inline struct omap_dss_device *fb2display(struct fb_info *fbi)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ int i;
+
+ /* XXX: returns the display connected to first attached overlay */
+ for (i = 0; i < ofbi->num_overlays; i++) {
+ if (ofbi->overlays[i]->manager)
+ return ofbi->overlays[i]->manager->device;
+ }
+
+ return NULL;
+}
+
+static inline void omapfb_lock(struct omapfb2_device *fbdev)
+{
+ mutex_lock(&fbdev->mtx);
+}
+
+static inline void omapfb_unlock(struct omapfb2_device *fbdev)
+{
+ mutex_unlock(&fbdev->mtx);
+}
+
+static inline int omapfb_overlay_enable(struct omap_overlay *ovl,
+ int enable)
+{
+ struct omap_overlay_info info;
+
+ ovl->get_overlay_info(ovl, &info);
+ info.enabled = enable;
+ return ovl->set_overlay_info(ovl, &info);
+}
+
+#endif
--- /dev/null
+/*
+ * VRAM manager for OMAP
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*#define DEBUG*/
+
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/list.h>
+#include <linux/seq_file.h>
+#include <linux/bootmem.h>
+#include <linux/completion.h>
+#include <linux/debugfs.h>
+#include <linux/jiffies.h>
+#include <linux/module.h>
+
+#include <asm/setup.h>
+
+#include <plat/sram.h>
+#include <plat/vram.h>
+#include <plat/dma.h>
+
+#ifdef DEBUG
+#define DBG(format, ...) pr_debug("VRAM: " format, ## __VA_ARGS__)
+#else
+#define DBG(format, ...)
+#endif
+
+#define OMAP2_SRAM_START 0x40200000
+/* Maximum size, in reality this is smaller if SRAM is partially locked. */
+#define OMAP2_SRAM_SIZE 0xa0000 /* 640k */
+
+/* postponed regions are used to temporarily store region information at boot
+ * time when we cannot yet allocate the region list */
+#define MAX_POSTPONED_REGIONS 10
+
+static bool vram_initialized;
+static int postponed_cnt;
+static struct {
+ unsigned long paddr;
+ size_t size;
+} postponed_regions[MAX_POSTPONED_REGIONS];
+
+struct vram_alloc {
+ struct list_head list;
+ unsigned long paddr;
+ unsigned pages;
+};
+
+struct vram_region {
+ struct list_head list;
+ struct list_head alloc_list;
+ unsigned long paddr;
+ unsigned pages;
+};
+
+static DEFINE_MUTEX(region_mutex);
+static LIST_HEAD(region_list);
+
+static inline int region_mem_type(unsigned long paddr)
+{
+ if (paddr >= OMAP2_SRAM_START &&
+ paddr < OMAP2_SRAM_START + OMAP2_SRAM_SIZE)
+ return OMAP_VRAM_MEMTYPE_SRAM;
+ else
+ return OMAP_VRAM_MEMTYPE_SDRAM;
+}
+
+static struct vram_region *omap_vram_create_region(unsigned long paddr,
+ unsigned pages)
+{
+ struct vram_region *rm;
+
+ rm = kzalloc(sizeof(*rm), GFP_KERNEL);
+
+ if (rm) {
+ INIT_LIST_HEAD(&rm->alloc_list);
+ rm->paddr = paddr;
+ rm->pages = pages;
+ }
+
+ return rm;
+}
+
+#if 0
+static void omap_vram_free_region(struct vram_region *vr)
+{
+ list_del(&vr->list);
+ kfree(vr);
+}
+#endif
+
+static struct vram_alloc *omap_vram_create_allocation(struct vram_region *vr,
+ unsigned long paddr, unsigned pages)
+{
+ struct vram_alloc *va;
+ struct vram_alloc *new;
+
+ new = kzalloc(sizeof(*va), GFP_KERNEL);
+
+ if (!new)
+ return NULL;
+
+ new->paddr = paddr;
+ new->pages = pages;
+
+ list_for_each_entry(va, &vr->alloc_list, list) {
+ if (va->paddr > new->paddr)
+ break;
+ }
+
+ list_add_tail(&new->list, &va->list);
+
+ return new;
+}
+
+static void omap_vram_free_allocation(struct vram_alloc *va)
+{
+ list_del(&va->list);
+ kfree(va);
+}
+
+int omap_vram_add_region(unsigned long paddr, size_t size)
+{
+ struct vram_region *rm;
+ unsigned pages;
+
+ if (vram_initialized) {
+ DBG("adding region paddr %08lx size %d\n",
+ paddr, size);
+
+ size &= PAGE_MASK;
+ pages = size >> PAGE_SHIFT;
+
+ rm = omap_vram_create_region(paddr, pages);
+ if (rm == NULL)
+ return -ENOMEM;
+
+ list_add(&rm->list, ®ion_list);
+ } else {
+ if (postponed_cnt == MAX_POSTPONED_REGIONS)
+ return -ENOMEM;
+
+ postponed_regions[postponed_cnt].paddr = paddr;
+ postponed_regions[postponed_cnt].size = size;
+
+ ++postponed_cnt;
+ }
+ return 0;
+}
+
+int omap_vram_free(unsigned long paddr, size_t size)
+{
+ struct vram_region *rm;
+ struct vram_alloc *alloc;
+ unsigned start, end;
+
+ DBG("free mem paddr %08lx size %d\n", paddr, size);
+
+ size = PAGE_ALIGN(size);
+
+ mutex_lock(®ion_mutex);
+
+ list_for_each_entry(rm, ®ion_list, list) {
+ list_for_each_entry(alloc, &rm->alloc_list, list) {
+ start = alloc->paddr;
+ end = alloc->paddr + (alloc->pages >> PAGE_SHIFT);
+
+ if (start >= paddr && end < paddr + size)
+ goto found;
+ }
+ }
+
+ mutex_unlock(®ion_mutex);
+ return -EINVAL;
+
+found:
+ omap_vram_free_allocation(alloc);
+
+ mutex_unlock(®ion_mutex);
+ return 0;
+}
+EXPORT_SYMBOL(omap_vram_free);
+
+static int _omap_vram_reserve(unsigned long paddr, unsigned pages)
+{
+ struct vram_region *rm;
+ struct vram_alloc *alloc;
+ size_t size;
+
+ size = pages << PAGE_SHIFT;
+
+ list_for_each_entry(rm, ®ion_list, list) {
+ unsigned long start, end;
+
+ DBG("checking region %lx %d\n", rm->paddr, rm->pages);
+
+ if (region_mem_type(rm->paddr) != region_mem_type(paddr))
+ continue;
+
+ start = rm->paddr;
+ end = start + (rm->pages << PAGE_SHIFT) - 1;
+ if (start > paddr || end < paddr + size - 1)
+ continue;
+
+ DBG("block ok, checking allocs\n");
+
+ list_for_each_entry(alloc, &rm->alloc_list, list) {
+ end = alloc->paddr - 1;
+
+ if (start <= paddr && end >= paddr + size - 1)
+ goto found;
+
+ start = alloc->paddr + (alloc->pages << PAGE_SHIFT);
+ }
+
+ end = rm->paddr + (rm->pages << PAGE_SHIFT) - 1;
+
+ if (!(start <= paddr && end >= paddr + size - 1))
+ continue;
+found:
+ DBG("found area start %lx, end %lx\n", start, end);
+
+ if (omap_vram_create_allocation(rm, paddr, pages) == NULL)
+ return -ENOMEM;
+
+ return 0;
+ }
+
+ return -ENOMEM;
+}
+
+int omap_vram_reserve(unsigned long paddr, size_t size)
+{
+ unsigned pages;
+ int r;
+
+ DBG("reserve mem paddr %08lx size %d\n", paddr, size);
+
+ size = PAGE_ALIGN(size);
+ pages = size >> PAGE_SHIFT;
+
+ mutex_lock(®ion_mutex);
+
+ r = _omap_vram_reserve(paddr, pages);
+
+ mutex_unlock(®ion_mutex);
+
+ return r;
+}
+EXPORT_SYMBOL(omap_vram_reserve);
+
+static void _omap_vram_dma_cb(int lch, u16 ch_status, void *data)
+{
+ struct completion *compl = data;
+ complete(compl);
+}
+
+static int _omap_vram_clear(u32 paddr, unsigned pages)
+{
+ struct completion compl;
+ unsigned elem_count;
+ unsigned frame_count;
+ int r;
+ int lch;
+
+ init_completion(&compl);
+
+ r = omap_request_dma(OMAP_DMA_NO_DEVICE, "VRAM DMA",
+ _omap_vram_dma_cb,
+ &compl, &lch);
+ if (r) {
+ pr_err("VRAM: request_dma failed for memory clear\n");
+ return -EBUSY;
+ }
+
+ elem_count = pages * PAGE_SIZE / 4;
+ frame_count = 1;
+
+ omap_set_dma_transfer_params(lch, OMAP_DMA_DATA_TYPE_S32,
+ elem_count, frame_count,
+ OMAP_DMA_SYNC_ELEMENT,
+ 0, 0);
+
+ omap_set_dma_dest_params(lch, 0, OMAP_DMA_AMODE_POST_INC,
+ paddr, 0, 0);
+
+ omap_set_dma_color_mode(lch, OMAP_DMA_CONSTANT_FILL, 0x000000);
+
+ omap_start_dma(lch);
+
+ if (wait_for_completion_timeout(&compl, msecs_to_jiffies(1000)) == 0) {
+ omap_stop_dma(lch);
+ pr_err("VRAM: dma timeout while clearing memory\n");
+ r = -EIO;
+ goto err;
+ }
+
+ r = 0;
+err:
+ omap_free_dma(lch);
+
+ return r;
+}
+
+static int _omap_vram_alloc(int mtype, unsigned pages, unsigned long *paddr)
+{
+ struct vram_region *rm;
+ struct vram_alloc *alloc;
+
+ list_for_each_entry(rm, ®ion_list, list) {
+ unsigned long start, end;
+
+ DBG("checking region %lx %d\n", rm->paddr, rm->pages);
+
+ if (region_mem_type(rm->paddr) != mtype)
+ continue;
+
+ start = rm->paddr;
+
+ list_for_each_entry(alloc, &rm->alloc_list, list) {
+ end = alloc->paddr;
+
+ if (end - start >= pages << PAGE_SHIFT)
+ goto found;
+
+ start = alloc->paddr + (alloc->pages << PAGE_SHIFT);
+ }
+
+ end = rm->paddr + (rm->pages << PAGE_SHIFT);
+found:
+ if (end - start < pages << PAGE_SHIFT)
+ continue;
+
+ DBG("found %lx, end %lx\n", start, end);
+
+ alloc = omap_vram_create_allocation(rm, start, pages);
+ if (alloc == NULL)
+ return -ENOMEM;
+
+ *paddr = start;
+
+ _omap_vram_clear(start, pages);
+
+ return 0;
+ }
+
+ return -ENOMEM;
+}
+
+int omap_vram_alloc(int mtype, size_t size, unsigned long *paddr)
+{
+ unsigned pages;
+ int r;
+
+ BUG_ON(mtype > OMAP_VRAM_MEMTYPE_MAX || !size);
+
+ DBG("alloc mem type %d size %d\n", mtype, size);
+
+ size = PAGE_ALIGN(size);
+ pages = size >> PAGE_SHIFT;
+
+ mutex_lock(®ion_mutex);
+
+ r = _omap_vram_alloc(mtype, pages, paddr);
+
+ mutex_unlock(®ion_mutex);
+
+ return r;
+}
+EXPORT_SYMBOL(omap_vram_alloc);
+
+void omap_vram_get_info(unsigned long *vram,
+ unsigned long *free_vram,
+ unsigned long *largest_free_block)
+{
+ struct vram_region *vr;
+ struct vram_alloc *va;
+
+ *vram = 0;
+ *free_vram = 0;
+ *largest_free_block = 0;
+
+ mutex_lock(®ion_mutex);
+
+ list_for_each_entry(vr, ®ion_list, list) {
+ unsigned free;
+ unsigned long pa;
+
+ pa = vr->paddr;
+ *vram += vr->pages << PAGE_SHIFT;
+
+ list_for_each_entry(va, &vr->alloc_list, list) {
+ free = va->paddr - pa;
+ *free_vram += free;
+ if (free > *largest_free_block)
+ *largest_free_block = free;
+ pa = va->paddr + (va->pages << PAGE_SHIFT);
+ }
+
+ free = vr->paddr + (vr->pages << PAGE_SHIFT) - pa;
+ *free_vram += free;
+ if (free > *largest_free_block)
+ *largest_free_block = free;
+ }
+
+ mutex_unlock(®ion_mutex);
+}
+EXPORT_SYMBOL(omap_vram_get_info);
+
+#if defined(CONFIG_DEBUG_FS)
+static int vram_debug_show(struct seq_file *s, void *unused)
+{
+ struct vram_region *vr;
+ struct vram_alloc *va;
+ unsigned size;
+
+ mutex_lock(®ion_mutex);
+
+ list_for_each_entry(vr, ®ion_list, list) {
+ size = vr->pages << PAGE_SHIFT;
+ seq_printf(s, "%08lx-%08lx (%d bytes)\n",
+ vr->paddr, vr->paddr + size - 1,
+ size);
+
+ list_for_each_entry(va, &vr->alloc_list, list) {
+ size = va->pages << PAGE_SHIFT;
+ seq_printf(s, " %08lx-%08lx (%d bytes)\n",
+ va->paddr, va->paddr + size - 1,
+ size);
+ }
+ }
+
+ mutex_unlock(®ion_mutex);
+
+ return 0;
+}
+
+static int vram_debug_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, vram_debug_show, inode->i_private);
+}
+
+static const struct file_operations vram_debug_fops = {
+ .open = vram_debug_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int __init omap_vram_create_debugfs(void)
+{
+ struct dentry *d;
+
+ d = debugfs_create_file("vram", S_IRUGO, NULL,
+ NULL, &vram_debug_fops);
+ if (IS_ERR(d))
+ return PTR_ERR(d);
+
+ return 0;
+}
+#endif
+
+static __init int omap_vram_init(void)
+{
+ int i;
+
+ vram_initialized = 1;
+
+ for (i = 0; i < postponed_cnt; i++)
+ omap_vram_add_region(postponed_regions[i].paddr,
+ postponed_regions[i].size);
+
+#ifdef CONFIG_DEBUG_FS
+ if (omap_vram_create_debugfs())
+ pr_err("VRAM: Failed to create debugfs file\n");
+#endif
+
+ return 0;
+}
+
+arch_initcall(omap_vram_init);
+
+/* boottime vram alloc stuff */
+
+/* set from board file */
+static u32 omap_vram_sram_start __initdata;
+static u32 omap_vram_sram_size __initdata;
+
+/* set from board file */
+static u32 omap_vram_sdram_start __initdata;
+static u32 omap_vram_sdram_size __initdata;
+
+/* set from kernel cmdline */
+static u32 omap_vram_def_sdram_size __initdata;
+static u32 omap_vram_def_sdram_start __initdata;
+
+static void __init omap_vram_early_vram(char **p)
+{
+ omap_vram_def_sdram_size = memparse(*p, p);
+ if (**p == ',')
+ omap_vram_def_sdram_start = simple_strtoul((*p) + 1, p, 16);
+}
+__early_param("vram=", omap_vram_early_vram);
+
+/*
+ * Called from map_io. We need to call to this early enough so that we
+ * can reserve the fixed SDRAM regions before VM could get hold of them.
+ */
+void __init omap_vram_reserve_sdram(void)
+{
+ struct bootmem_data *bdata;
+ unsigned long sdram_start, sdram_size;
+ u32 paddr;
+ u32 size = 0;
+
+ /* cmdline arg overrides the board file definition */
+ if (omap_vram_def_sdram_size) {
+ size = omap_vram_def_sdram_size;
+ paddr = omap_vram_def_sdram_start;
+ }
+
+ if (!size) {
+ size = omap_vram_sdram_size;
+ paddr = omap_vram_sdram_start;
+ }
+
+#ifdef CONFIG_OMAP2_VRAM_SIZE
+ if (!size) {
+ size = CONFIG_OMAP2_VRAM_SIZE * 1024 * 1024;
+ paddr = 0;
+ }
+#endif
+
+ if (!size)
+ return;
+
+ size = PAGE_ALIGN(size);
+
+ bdata = NODE_DATA(0)->bdata;
+ sdram_start = bdata->node_min_pfn << PAGE_SHIFT;
+ sdram_size = (bdata->node_low_pfn << PAGE_SHIFT) - sdram_start;
+
+ if (paddr) {
+ if ((paddr & ~PAGE_MASK) || paddr < sdram_start ||
+ paddr + size > sdram_start + sdram_size) {
+ pr_err("Illegal SDRAM region for VRAM\n");
+ return;
+ }
+
+ if (reserve_bootmem(paddr, size, BOOTMEM_EXCLUSIVE) < 0) {
+ pr_err("FB: failed to reserve VRAM\n");
+ return;
+ }
+ } else {
+ if (size > sdram_size) {
+ pr_err("Illegal SDRAM size for VRAM\n");
+ return;
+ }
+
+ paddr = virt_to_phys(alloc_bootmem_pages(size));
+ BUG_ON(paddr & ~PAGE_MASK);
+ }
+
+ omap_vram_add_region(paddr, size);
+
+ pr_info("Reserving %u bytes SDRAM for VRAM\n", size);
+}
+
+/*
+ * Called at sram init time, before anything is pushed to the SRAM stack.
+ * Because of the stack scheme, we will allocate everything from the
+ * start of the lowest address region to the end of SRAM. This will also
+ * include padding for page alignment and possible holes between regions.
+ *
+ * As opposed to the SDRAM case, we'll also do any dynamic allocations at
+ * this point, since the driver built as a module would have problem with
+ * freeing / reallocating the regions.
+ */
+unsigned long __init omap_vram_reserve_sram(unsigned long sram_pstart,
+ unsigned long sram_vstart,
+ unsigned long sram_size,
+ unsigned long pstart_avail,
+ unsigned long size_avail)
+{
+ unsigned long pend_avail;
+ unsigned long reserved;
+ u32 paddr;
+ u32 size;
+
+ paddr = omap_vram_sram_start;
+ size = omap_vram_sram_size;
+
+ if (!size)
+ return 0;
+
+ reserved = 0;
+ pend_avail = pstart_avail + size_avail;
+
+ if (!paddr) {
+ /* Dynamic allocation */
+ if ((size_avail & PAGE_MASK) < size) {
+ pr_err("Not enough SRAM for VRAM\n");
+ return 0;
+ }
+ size_avail = (size_avail - size) & PAGE_MASK;
+ paddr = pstart_avail + size_avail;
+ }
+
+ if (paddr < sram_pstart ||
+ paddr + size > sram_pstart + sram_size) {
+ pr_err("Illegal SRAM region for VRAM\n");
+ return 0;
+ }
+
+ /* Reserve everything above the start of the region. */
+ if (pend_avail - paddr > reserved)
+ reserved = pend_avail - paddr;
+ size_avail = pend_avail - reserved - pstart_avail;
+
+ omap_vram_add_region(paddr, size);
+
+ if (reserved)
+ pr_info("Reserving %lu bytes SRAM for VRAM\n", reserved);
+
+ return reserved;
+}
+
+void __init omap_vram_set_sdram_vram(u32 size, u32 start)
+{
+ omap_vram_sdram_start = start;
+ omap_vram_sdram_size = size;
+}
+
+void __init omap_vram_set_sram_vram(u32 size, u32 start)
+{
+ omap_vram_sram_start = start;
+ omap_vram_sram_size = size;
+}
--- /dev/null
+/*
+ * VRFB Rotation Engine
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*#define DEBUG*/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/ioport.h>
+#include <linux/io.h>
+#include <linux/bitops.h>
+#include <linux/mutex.h>
+
+#include <mach/io.h>
+#include <plat/vrfb.h>
+#include <plat/sdrc.h>
+
+#ifdef DEBUG
+#define DBG(format, ...) pr_debug("VRFB: " format, ## __VA_ARGS__)
+#else
+#define DBG(format, ...)
+#endif
+
+#define SMS_ROT_VIRT_BASE(context, rot) \
+ (((context >= 4) ? 0xD0000000 : 0x70000000) \
+ + (0x4000000 * (context)) \
+ + (0x1000000 * (rot)))
+
+#define OMAP_VRFB_SIZE (2048 * 2048 * 4)
+
+#define VRFB_PAGE_WIDTH_EXP 5 /* Assuming SDRAM pagesize= 1024 */
+#define VRFB_PAGE_HEIGHT_EXP 5 /* 1024 = 2^5 * 2^5 */
+#define VRFB_PAGE_WIDTH (1 << VRFB_PAGE_WIDTH_EXP)
+#define VRFB_PAGE_HEIGHT (1 << VRFB_PAGE_HEIGHT_EXP)
+#define SMS_IMAGEHEIGHT_OFFSET 16
+#define SMS_IMAGEWIDTH_OFFSET 0
+#define SMS_PH_OFFSET 8
+#define SMS_PW_OFFSET 4
+#define SMS_PS_OFFSET 0
+
+#define VRFB_NUM_CTXS 12
+/* bitmap of reserved contexts */
+static unsigned long ctx_map;
+
+static DEFINE_MUTEX(ctx_lock);
+
+/*
+ * Access to this happens from client drivers or the PM core after wake-up.
+ * For the first case we require locking at the driver level, for the second
+ * we don't need locking, since no drivers will run until after the wake-up
+ * has finished.
+ */
+static struct {
+ u32 physical_ba;
+ u32 control;
+ u32 size;
+} vrfb_hw_context[VRFB_NUM_CTXS];
+
+static inline void restore_hw_context(int ctx)
+{
+ omap2_sms_write_rot_control(vrfb_hw_context[ctx].control, ctx);
+ omap2_sms_write_rot_size(vrfb_hw_context[ctx].size, ctx);
+ omap2_sms_write_rot_physical_ba(vrfb_hw_context[ctx].physical_ba, ctx);
+}
+
+static u32 get_image_width_roundup(u16 width, u8 bytespp)
+{
+ unsigned long stride = width * bytespp;
+ unsigned long ceil_pages_per_stride = (stride / VRFB_PAGE_WIDTH) +
+ (stride % VRFB_PAGE_WIDTH != 0);
+
+ return ceil_pages_per_stride * VRFB_PAGE_WIDTH / bytespp;
+}
+
+/*
+ * This the extra space needed in the VRFB physical area for VRFB to safely wrap
+ * any memory accesses to the invisible part of the virtual view to the physical
+ * area.
+ */
+static inline u32 get_extra_physical_size(u16 image_width_roundup, u8 bytespp)
+{
+ return (OMAP_VRFB_LINE_LEN - image_width_roundup) * VRFB_PAGE_HEIGHT *
+ bytespp;
+}
+
+void omap_vrfb_restore_context(void)
+{
+ int i;
+ unsigned long map = ctx_map;
+
+ for (i = ffs(map); i; i = ffs(map)) {
+ /* i=1..32 */
+ i--;
+ map &= ~(1 << i);
+ restore_hw_context(i);
+ }
+}
+
+void omap_vrfb_adjust_size(u16 *width, u16 *height,
+ u8 bytespp)
+{
+ *width = ALIGN(*width * bytespp, VRFB_PAGE_WIDTH) / bytespp;
+ *height = ALIGN(*height, VRFB_PAGE_HEIGHT);
+}
+EXPORT_SYMBOL(omap_vrfb_adjust_size);
+
+u32 omap_vrfb_min_phys_size(u16 width, u16 height, u8 bytespp)
+{
+ unsigned long image_width_roundup = get_image_width_roundup(width,
+ bytespp);
+
+ if (image_width_roundup > OMAP_VRFB_LINE_LEN)
+ return 0;
+
+ return (width * height * bytespp) + get_extra_physical_size(
+ image_width_roundup, bytespp);
+}
+EXPORT_SYMBOL(omap_vrfb_min_phys_size);
+
+u16 omap_vrfb_max_height(u32 phys_size, u16 width, u8 bytespp)
+{
+ unsigned long image_width_roundup = get_image_width_roundup(width,
+ bytespp);
+ unsigned long height;
+ unsigned long extra;
+
+ if (image_width_roundup > OMAP_VRFB_LINE_LEN)
+ return 0;
+
+ extra = get_extra_physical_size(image_width_roundup, bytespp);
+
+ if (phys_size < extra)
+ return 0;
+
+ height = (phys_size - extra) / (width * bytespp);
+
+ /* Virtual views provided by VRFB are limited to 2048x2048. */
+ return min_t(unsigned long, height, 2048);
+}
+EXPORT_SYMBOL(omap_vrfb_max_height);
+
+void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr,
+ u16 width, u16 height,
+ unsigned bytespp, bool yuv_mode)
+{
+ unsigned pixel_size_exp;
+ u16 vrfb_width;
+ u16 vrfb_height;
+ u8 ctx = vrfb->context;
+ u32 size;
+ u32 control;
+
+ DBG("omapfb_set_vrfb(%d, %lx, %dx%d, %d, %d)\n", ctx, paddr,
+ width, height, bytespp, yuv_mode);
+
+ /* For YUV2 and UYVY modes VRFB needs to handle pixels a bit
+ * differently. See TRM. */
+ if (yuv_mode) {
+ bytespp *= 2;
+ width /= 2;
+ }
+
+ if (bytespp == 4)
+ pixel_size_exp = 2;
+ else if (bytespp == 2)
+ pixel_size_exp = 1;
+ else
+ BUG();
+
+ vrfb_width = ALIGN(width * bytespp, VRFB_PAGE_WIDTH) / bytespp;
+ vrfb_height = ALIGN(height, VRFB_PAGE_HEIGHT);
+
+ DBG("vrfb w %u, h %u bytespp %d\n", vrfb_width, vrfb_height, bytespp);
+
+ size = vrfb_width << SMS_IMAGEWIDTH_OFFSET;
+ size |= vrfb_height << SMS_IMAGEHEIGHT_OFFSET;
+
+ control = pixel_size_exp << SMS_PS_OFFSET;
+ control |= VRFB_PAGE_WIDTH_EXP << SMS_PW_OFFSET;
+ control |= VRFB_PAGE_HEIGHT_EXP << SMS_PH_OFFSET;
+
+ vrfb_hw_context[ctx].physical_ba = paddr;
+ vrfb_hw_context[ctx].size = size;
+ vrfb_hw_context[ctx].control = control;
+
+ omap2_sms_write_rot_physical_ba(paddr, ctx);
+ omap2_sms_write_rot_size(size, ctx);
+ omap2_sms_write_rot_control(control, ctx);
+
+ DBG("vrfb offset pixels %d, %d\n",
+ vrfb_width - width, vrfb_height - height);
+
+ vrfb->xres = width;
+ vrfb->yres = height;
+ vrfb->xoffset = vrfb_width - width;
+ vrfb->yoffset = vrfb_height - height;
+ vrfb->bytespp = bytespp;
+ vrfb->yuv_mode = yuv_mode;
+}
+EXPORT_SYMBOL(omap_vrfb_setup);
+
+int omap_vrfb_map_angle(struct vrfb *vrfb, u16 height, u8 rot)
+{
+ unsigned long size = height * OMAP_VRFB_LINE_LEN * vrfb->bytespp;
+
+ vrfb->vaddr[rot] = ioremap_wc(vrfb->paddr[rot], size);
+
+ if (!vrfb->vaddr[rot]) {
+ printk(KERN_ERR "vrfb: ioremap failed\n");
+ return -ENOMEM;
+ }
+
+ DBG("ioremapped vrfb area %d of size %lu into %p\n", rot, size,
+ vrfb->vaddr[rot]);
+
+ return 0;
+}
+EXPORT_SYMBOL(omap_vrfb_map_angle);
+
+void omap_vrfb_release_ctx(struct vrfb *vrfb)
+{
+ int rot;
+ int ctx = vrfb->context;
+
+ if (ctx == 0xff)
+ return;
+
+ DBG("release ctx %d\n", ctx);
+
+ mutex_lock(&ctx_lock);
+
+ BUG_ON(!(ctx_map & (1 << ctx)));
+
+ clear_bit(ctx, &ctx_map);
+
+ for (rot = 0; rot < 4; ++rot) {
+ if (vrfb->paddr[rot]) {
+ release_mem_region(vrfb->paddr[rot], OMAP_VRFB_SIZE);
+ vrfb->paddr[rot] = 0;
+ }
+ }
+
+ vrfb->context = 0xff;
+
+ mutex_unlock(&ctx_lock);
+}
+EXPORT_SYMBOL(omap_vrfb_release_ctx);
+
+int omap_vrfb_request_ctx(struct vrfb *vrfb)
+{
+ int rot;
+ u32 paddr;
+ u8 ctx;
+ int r;
+
+ DBG("request ctx\n");
+
+ mutex_lock(&ctx_lock);
+
+ for (ctx = 0; ctx < VRFB_NUM_CTXS; ++ctx)
+ if ((ctx_map & (1 << ctx)) == 0)
+ break;
+
+ if (ctx == VRFB_NUM_CTXS) {
+ pr_err("vrfb: no free contexts\n");
+ r = -EBUSY;
+ goto out;
+ }
+
+ DBG("found free ctx %d\n", ctx);
+
+ set_bit(ctx, &ctx_map);
+
+ memset(vrfb, 0, sizeof(*vrfb));
+
+ vrfb->context = ctx;
+
+ for (rot = 0; rot < 4; ++rot) {
+ paddr = SMS_ROT_VIRT_BASE(ctx, rot);
+ if (!request_mem_region(paddr, OMAP_VRFB_SIZE, "vrfb")) {
+ pr_err("vrfb: failed to reserve VRFB "
+ "area for ctx %d, rotation %d\n",
+ ctx, rot * 90);
+ omap_vrfb_release_ctx(vrfb);
+ r = -ENOMEM;
+ goto out;
+ }
+
+ vrfb->paddr[rot] = paddr;
+
+ DBG("VRFB %d/%d: %lx\n", ctx, rot*90, vrfb->paddr[rot]);
+ }
+
+ r = 0;
+out:
+ mutex_unlock(&ctx_lock);
+ return r;
+}
+EXPORT_SYMBOL(omap_vrfb_request_ctx);
--- /dev/null
+/*
+ * File: include/linux/omapfb.h
+ *
+ * Framebuffer driver for TI OMAP boards
+ *
+ * Copyright (C) 2004 Nokia Corporation
+ * Author: Imre Deak <imre.deak@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __LINUX_OMAPFB_H__
+#define __LINUX_OMAPFB_H__
+
+#include <linux/fb.h>
+#include <linux/ioctl.h>
+#include <linux/types.h>
+
+/* IOCTL commands. */
+
+#define OMAP_IOW(num, dtype) _IOW('O', num, dtype)
+#define OMAP_IOR(num, dtype) _IOR('O', num, dtype)
+#define OMAP_IOWR(num, dtype) _IOWR('O', num, dtype)
+#define OMAP_IO(num) _IO('O', num)
+
+#define OMAPFB_MIRROR OMAP_IOW(31, int)
+#define OMAPFB_SYNC_GFX OMAP_IO(37)
+#define OMAPFB_VSYNC OMAP_IO(38)
+#define OMAPFB_SET_UPDATE_MODE OMAP_IOW(40, int)
+#define OMAPFB_GET_CAPS OMAP_IOR(42, struct omapfb_caps)
+#define OMAPFB_GET_UPDATE_MODE OMAP_IOW(43, int)
+#define OMAPFB_LCD_TEST OMAP_IOW(45, int)
+#define OMAPFB_CTRL_TEST OMAP_IOW(46, int)
+#define OMAPFB_UPDATE_WINDOW_OLD OMAP_IOW(47, struct omapfb_update_window_old)
+#define OMAPFB_SET_COLOR_KEY OMAP_IOW(50, struct omapfb_color_key)
+#define OMAPFB_GET_COLOR_KEY OMAP_IOW(51, struct omapfb_color_key)
+#define OMAPFB_SETUP_PLANE OMAP_IOW(52, struct omapfb_plane_info)
+#define OMAPFB_QUERY_PLANE OMAP_IOW(53, struct omapfb_plane_info)
+#define OMAPFB_UPDATE_WINDOW OMAP_IOW(54, struct omapfb_update_window)
+#define OMAPFB_SETUP_MEM OMAP_IOW(55, struct omapfb_mem_info)
+#define OMAPFB_QUERY_MEM OMAP_IOW(56, struct omapfb_mem_info)
+#define OMAPFB_WAITFORVSYNC OMAP_IO(57)
+#define OMAPFB_MEMORY_READ OMAP_IOR(58, struct omapfb_memory_read)
+#define OMAPFB_GET_OVERLAY_COLORMODE OMAP_IOR(59, struct omapfb_ovl_colormode)
+#define OMAPFB_WAITFORGO OMAP_IO(60)
+#define OMAPFB_GET_VRAM_INFO OMAP_IOR(61, struct omapfb_vram_info)
+#define OMAPFB_SET_TEARSYNC OMAP_IOW(62, struct omapfb_tearsync_info)
+
+#define OMAPFB_CAPS_GENERIC_MASK 0x00000fff
+#define OMAPFB_CAPS_LCDC_MASK 0x00fff000
+#define OMAPFB_CAPS_PANEL_MASK 0xff000000
+
+#define OMAPFB_CAPS_MANUAL_UPDATE 0x00001000
+#define OMAPFB_CAPS_TEARSYNC 0x00002000
+#define OMAPFB_CAPS_PLANE_RELOCATE_MEM 0x00004000
+#define OMAPFB_CAPS_PLANE_SCALE 0x00008000
+#define OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE 0x00010000
+#define OMAPFB_CAPS_WINDOW_SCALE 0x00020000
+#define OMAPFB_CAPS_WINDOW_OVERLAY 0x00040000
+#define OMAPFB_CAPS_WINDOW_ROTATE 0x00080000
+#define OMAPFB_CAPS_SET_BACKLIGHT 0x01000000
+
+/* Values from DSP must map to lower 16-bits */
+#define OMAPFB_FORMAT_MASK 0x00ff
+#define OMAPFB_FORMAT_FLAG_DOUBLE 0x0100
+#define OMAPFB_FORMAT_FLAG_TEARSYNC 0x0200
+#define OMAPFB_FORMAT_FLAG_FORCE_VSYNC 0x0400
+#define OMAPFB_FORMAT_FLAG_ENABLE_OVERLAY 0x0800
+#define OMAPFB_FORMAT_FLAG_DISABLE_OVERLAY 0x1000
+
+#define OMAPFB_MEMTYPE_SDRAM 0
+#define OMAPFB_MEMTYPE_SRAM 1
+#define OMAPFB_MEMTYPE_MAX 1
+
+enum omapfb_color_format {
+ OMAPFB_COLOR_RGB565 = 0,
+ OMAPFB_COLOR_YUV422,
+ OMAPFB_COLOR_YUV420,
+ OMAPFB_COLOR_CLUT_8BPP,
+ OMAPFB_COLOR_CLUT_4BPP,
+ OMAPFB_COLOR_CLUT_2BPP,
+ OMAPFB_COLOR_CLUT_1BPP,
+ OMAPFB_COLOR_RGB444,
+ OMAPFB_COLOR_YUY422,
+
+ OMAPFB_COLOR_ARGB16,
+ OMAPFB_COLOR_RGB24U, /* RGB24, 32-bit container */
+ OMAPFB_COLOR_RGB24P, /* RGB24, 24-bit container */
+ OMAPFB_COLOR_ARGB32,
+ OMAPFB_COLOR_RGBA32,
+ OMAPFB_COLOR_RGBX32,
+};
+
+struct omapfb_update_window {
+ __u32 x, y;
+ __u32 width, height;
+ __u32 format;
+ __u32 out_x, out_y;
+ __u32 out_width, out_height;
+ __u32 reserved[8];
+};
+
+struct omapfb_update_window_old {
+ __u32 x, y;
+ __u32 width, height;
+ __u32 format;
+};
+
+enum omapfb_plane {
+ OMAPFB_PLANE_GFX = 0,
+ OMAPFB_PLANE_VID1,
+ OMAPFB_PLANE_VID2,
+};
+
+enum omapfb_channel_out {
+ OMAPFB_CHANNEL_OUT_LCD = 0,
+ OMAPFB_CHANNEL_OUT_DIGIT,
+};
+
+struct omapfb_plane_info {
+ __u32 pos_x;
+ __u32 pos_y;
+ __u8 enabled;
+ __u8 channel_out;
+ __u8 mirror;
+ __u8 reserved1;
+ __u32 out_width;
+ __u32 out_height;
+ __u32 reserved2[12];
+};
+
+struct omapfb_mem_info {
+ __u32 size;
+ __u8 type;
+ __u8 reserved[3];
+};
+
+struct omapfb_caps {
+ __u32 ctrl;
+ __u32 plane_color;
+ __u32 wnd_color;
+};
+
+enum omapfb_color_key_type {
+ OMAPFB_COLOR_KEY_DISABLED = 0,
+ OMAPFB_COLOR_KEY_GFX_DST,
+ OMAPFB_COLOR_KEY_VID_SRC,
+};
+
+struct omapfb_color_key {
+ __u8 channel_out;
+ __u32 background;
+ __u32 trans_key;
+ __u8 key_type;
+};
+
+enum omapfb_update_mode {
+ OMAPFB_UPDATE_DISABLED = 0,
+ OMAPFB_AUTO_UPDATE,
+ OMAPFB_MANUAL_UPDATE
+};
+
+struct omapfb_memory_read {
+ __u16 x;
+ __u16 y;
+ __u16 w;
+ __u16 h;
+ size_t buffer_size;
+ void __user *buffer;
+};
+
+struct omapfb_ovl_colormode {
+ __u8 overlay_idx;
+ __u8 mode_idx;
+ __u32 bits_per_pixel;
+ __u32 nonstd;
+ struct fb_bitfield red;
+ struct fb_bitfield green;
+ struct fb_bitfield blue;
+ struct fb_bitfield transp;
+};
+
+struct omapfb_vram_info {
+ __u32 total;
+ __u32 free;
+ __u32 largest_free_block;
+ __u32 reserved[5];
+};
+
+struct omapfb_tearsync_info {
+ __u8 enabled;
+ __u8 reserved1[3];
+ __u16 line;
+ __u16 reserved2;
+};
+
+#ifdef __KERNEL__
+
+#include <plat/board.h>
+
+#ifdef CONFIG_ARCH_OMAP1
+#define OMAPFB_PLANE_NUM 1
+#else
+#define OMAPFB_PLANE_NUM 3
+#endif
+
+struct omapfb_mem_region {
+ u32 paddr;
+ void __iomem *vaddr;
+ unsigned long size;
+ u8 type; /* OMAPFB_PLANE_MEM_* */
+ enum omapfb_color_format format;/* OMAPFB_COLOR_* */
+ unsigned format_used:1; /* Must be set when format is set.
+ * Needed b/c of the badly chosen 0
+ * base for OMAPFB_COLOR_* values
+ */
+ unsigned alloc:1; /* allocated by the driver */
+ unsigned map:1; /* kernel mapped by the driver */
+};
+
+struct omapfb_mem_desc {
+ int region_cnt;
+ struct omapfb_mem_region region[OMAPFB_PLANE_NUM];
+};
+
+struct omapfb_platform_data {
+ struct omap_lcd_config lcd;
+ struct omapfb_mem_desc mem_desc;
+ void *ctrl_platform_data;
+};
+
+/* in arch/arm/plat-omap/fb.c */
+extern void omapfb_set_platform_data(struct omapfb_platform_data *data);
+extern void omapfb_set_ctrl_platform_data(void *pdata);
+extern void omapfb_reserve_sdram(void);
+
+#endif
+
+#endif /* __OMAPFB_H */
projects / linux-2.6-block.git / commitdiff