sun4i-tcon-y += sun4i_rgb.o
sun4i-tcon-y += sun4i_dotclock.o
sun4i-tcon-y += sun4i_crtc.o
-sun4i-tcon-y += sun4i_layer.o
+
+sun4i-backend-y += sun4i_backend.o sun4i_layer.o
obj-$(CONFIG_DRM_SUN4I) += sun4i-drm.o sun4i-tcon.o
-obj-$(CONFIG_DRM_SUN4I) += sun4i_backend.o
+obj-$(CONFIG_DRM_SUN4I) += sun4i-backend.o
obj-$(CONFIG_DRM_SUN4I) += sun6i_drc.o
obj-$(CONFIG_DRM_SUN4I) += sun4i_tv.o
#include "sun4i_backend.h"
#include "sun4i_drv.h"
+#include "sun4i_layer.h"
+#include "sunxi_engine.h"
static const u32 sunxi_rgb2yuv_coef[12] = {
0x00000107, 0x00000204, 0x00000064, 0x00000108,
0x000001c1, 0x00003e88, 0x00003fb8, 0x00000808
};
-void sun4i_backend_apply_color_correction(struct sun4i_backend *backend)
+static void sun4i_backend_apply_color_correction(struct sunxi_engine *engine)
{
int i;
DRM_DEBUG_DRIVER("Applying RGB to YUV color correction\n");
/* Set color correction */
- regmap_write(backend->regs, SUN4I_BACKEND_OCCTL_REG,
+ regmap_write(engine->regs, SUN4I_BACKEND_OCCTL_REG,
SUN4I_BACKEND_OCCTL_ENABLE);
for (i = 0; i < 12; i++)
- regmap_write(backend->regs, SUN4I_BACKEND_OCRCOEF_REG(i),
+ regmap_write(engine->regs, SUN4I_BACKEND_OCRCOEF_REG(i),
sunxi_rgb2yuv_coef[i]);
}
-EXPORT_SYMBOL(sun4i_backend_apply_color_correction);
-void sun4i_backend_disable_color_correction(struct sun4i_backend *backend)
+static void sun4i_backend_disable_color_correction(struct sunxi_engine *engine)
{
DRM_DEBUG_DRIVER("Disabling color correction\n");
/* Disable color correction */
- regmap_update_bits(backend->regs, SUN4I_BACKEND_OCCTL_REG,
+ regmap_update_bits(engine->regs, SUN4I_BACKEND_OCCTL_REG,
SUN4I_BACKEND_OCCTL_ENABLE, 0);
}
-EXPORT_SYMBOL(sun4i_backend_disable_color_correction);
-void sun4i_backend_commit(struct sun4i_backend *backend)
+static void sun4i_backend_commit(struct sunxi_engine *engine)
{
DRM_DEBUG_DRIVER("Committing changes\n");
- regmap_write(backend->regs, SUN4I_BACKEND_REGBUFFCTL_REG,
+ regmap_write(engine->regs, SUN4I_BACKEND_REGBUFFCTL_REG,
SUN4I_BACKEND_REGBUFFCTL_AUTOLOAD_DIS |
SUN4I_BACKEND_REGBUFFCTL_LOADCTL);
}
-EXPORT_SYMBOL(sun4i_backend_commit);
void sun4i_backend_layer_enable(struct sun4i_backend *backend,
int layer, bool enable)
else
val = 0;
- regmap_update_bits(backend->regs, SUN4I_BACKEND_MODCTL_REG,
+ regmap_update_bits(backend->engine.regs, SUN4I_BACKEND_MODCTL_REG,
SUN4I_BACKEND_MODCTL_LAY_EN(layer), val);
}
-EXPORT_SYMBOL(sun4i_backend_layer_enable);
static int sun4i_backend_drm_format_to_layer(struct drm_plane *plane,
u32 format, u32 *mode)
if (plane->type == DRM_PLANE_TYPE_PRIMARY) {
DRM_DEBUG_DRIVER("Primary layer, updating global size W: %u H: %u\n",
state->crtc_w, state->crtc_h);
- regmap_write(backend->regs, SUN4I_BACKEND_DISSIZE_REG,
+ regmap_write(backend->engine.regs, SUN4I_BACKEND_DISSIZE_REG,
SUN4I_BACKEND_DISSIZE(state->crtc_w,
state->crtc_h));
}
/* Set the line width */
DRM_DEBUG_DRIVER("Layer line width: %d bits\n", fb->pitches[0] * 8);
- regmap_write(backend->regs, SUN4I_BACKEND_LAYLINEWIDTH_REG(layer),
+ regmap_write(backend->engine.regs,
+ SUN4I_BACKEND_LAYLINEWIDTH_REG(layer),
fb->pitches[0] * 8);
/* Set height and width */
DRM_DEBUG_DRIVER("Layer size W: %u H: %u\n",
state->crtc_w, state->crtc_h);
- regmap_write(backend->regs, SUN4I_BACKEND_LAYSIZE_REG(layer),
+ regmap_write(backend->engine.regs, SUN4I_BACKEND_LAYSIZE_REG(layer),
SUN4I_BACKEND_LAYSIZE(state->crtc_w,
state->crtc_h));
/* Set base coordinates */
DRM_DEBUG_DRIVER("Layer coordinates X: %d Y: %d\n",
state->crtc_x, state->crtc_y);
- regmap_write(backend->regs, SUN4I_BACKEND_LAYCOOR_REG(layer),
+ regmap_write(backend->engine.regs, SUN4I_BACKEND_LAYCOOR_REG(layer),
SUN4I_BACKEND_LAYCOOR(state->crtc_x,
state->crtc_y));
return 0;
}
-EXPORT_SYMBOL(sun4i_backend_update_layer_coord);
int sun4i_backend_update_layer_formats(struct sun4i_backend *backend,
int layer, struct drm_plane *plane)
interlaced = plane->state->crtc->state->adjusted_mode.flags
& DRM_MODE_FLAG_INTERLACE;
- regmap_update_bits(backend->regs, SUN4I_BACKEND_MODCTL_REG,
+ regmap_update_bits(backend->engine.regs, SUN4I_BACKEND_MODCTL_REG,
SUN4I_BACKEND_MODCTL_ITLMOD_EN,
interlaced ? SUN4I_BACKEND_MODCTL_ITLMOD_EN : 0);
return ret;
}
- regmap_update_bits(backend->regs, SUN4I_BACKEND_ATTCTL_REG1(layer),
+ regmap_update_bits(backend->engine.regs,
+ SUN4I_BACKEND_ATTCTL_REG1(layer),
SUN4I_BACKEND_ATTCTL_REG1_LAY_FBFMT, val);
return 0;
}
-EXPORT_SYMBOL(sun4i_backend_update_layer_formats);
int sun4i_backend_update_layer_buffer(struct sun4i_backend *backend,
int layer, struct drm_plane *plane)
/* Write the 32 lower bits of the address (in bits) */
lo_paddr = paddr << 3;
DRM_DEBUG_DRIVER("Setting address lower bits to 0x%x\n", lo_paddr);
- regmap_write(backend->regs, SUN4I_BACKEND_LAYFB_L32ADD_REG(layer),
+ regmap_write(backend->engine.regs,
+ SUN4I_BACKEND_LAYFB_L32ADD_REG(layer),
lo_paddr);
/* And the upper bits */
hi_paddr = paddr >> 29;
DRM_DEBUG_DRIVER("Setting address high bits to 0x%x\n", hi_paddr);
- regmap_update_bits(backend->regs, SUN4I_BACKEND_LAYFB_H4ADD_REG,
+ regmap_update_bits(backend->engine.regs, SUN4I_BACKEND_LAYFB_H4ADD_REG,
SUN4I_BACKEND_LAYFB_H4ADD_MSK(layer),
SUN4I_BACKEND_LAYFB_H4ADD(layer, hi_paddr));
return 0;
}
-EXPORT_SYMBOL(sun4i_backend_update_layer_buffer);
static int sun4i_backend_init_sat(struct device *dev) {
struct sun4i_backend *backend = dev_get_drvdata(dev);
return ret;
}
+static const struct sunxi_engine_ops sun4i_backend_engine_ops = {
+ .commit = sun4i_backend_commit,
+ .layers_init = sun4i_layers_init,
+ .apply_color_correction = sun4i_backend_apply_color_correction,
+ .disable_color_correction = sun4i_backend_disable_color_correction,
+};
+
static struct regmap_config sun4i_backend_regmap_config = {
.reg_bits = 32,
.val_bits = 32,
return -ENOMEM;
dev_set_drvdata(dev, backend);
- backend->node = dev->of_node;
- backend->id = sun4i_backend_of_get_id(dev->of_node);
- if (backend->id < 0)
- return backend->id;
+ backend->engine.node = dev->of_node;
+ backend->engine.ops = &sun4i_backend_engine_ops;
+ backend->engine.id = sun4i_backend_of_get_id(dev->of_node);
+ if (backend->engine.id < 0)
+ return backend->engine.id;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
regs = devm_ioremap_resource(dev, res);
if (IS_ERR(regs))
return PTR_ERR(regs);
- backend->regs = devm_regmap_init_mmio(dev, regs,
- &sun4i_backend_regmap_config);
- if (IS_ERR(backend->regs)) {
+ backend->engine.regs = devm_regmap_init_mmio(dev, regs,
+ &sun4i_backend_regmap_config);
+ if (IS_ERR(backend->engine.regs)) {
dev_err(dev, "Couldn't create the backend regmap\n");
- return PTR_ERR(backend->regs);
+ return PTR_ERR(backend->engine.regs);
}
backend->reset = devm_reset_control_get(dev, NULL);
}
}
- list_add_tail(&backend->list, &drv->backend_list);
+ list_add_tail(&backend->engine.list, &drv->engine_list);
/* Reset the registers */
for (i = 0x800; i < 0x1000; i += 4)
- regmap_write(backend->regs, i, 0);
+ regmap_write(backend->engine.regs, i, 0);
/* Disable registers autoloading */
- regmap_write(backend->regs, SUN4I_BACKEND_REGBUFFCTL_REG,
+ regmap_write(backend->engine.regs, SUN4I_BACKEND_REGBUFFCTL_REG,
SUN4I_BACKEND_REGBUFFCTL_AUTOLOAD_DIS);
/* Enable the backend */
- regmap_write(backend->regs, SUN4I_BACKEND_MODCTL_REG,
+ regmap_write(backend->engine.regs, SUN4I_BACKEND_MODCTL_REG,
SUN4I_BACKEND_MODCTL_DEBE_EN |
SUN4I_BACKEND_MODCTL_START_CTL);
{
struct sun4i_backend *backend = dev_get_drvdata(dev);
- list_del(&backend->list);
+ list_del(&backend->engine.list);
if (of_device_is_compatible(dev->of_node,
"allwinner,sun8i-a33-display-backend"))
#include <linux/regmap.h>
#include <linux/reset.h>
+#include "sunxi_engine.h"
+
#define SUN4I_BACKEND_MODCTL_REG 0x800
#define SUN4I_BACKEND_MODCTL_LINE_SEL BIT(29)
#define SUN4I_BACKEND_MODCTL_ITLMOD_EN BIT(28)
#define SUN4I_BACKEND_PIPE_OFF(p) (0x5000 + (0x400 * (p)))
struct sun4i_backend {
- struct device_node *node;
- struct regmap *regs;
+ struct sunxi_engine engine;
struct reset_control *reset;
struct clk *sat_clk;
struct reset_control *sat_reset;
-
- int id;
-
- /* Backend list management */
- struct list_head list;
};
-void sun4i_backend_apply_color_correction(struct sun4i_backend *backend);
-void sun4i_backend_disable_color_correction(struct sun4i_backend *backend);
-
-void sun4i_backend_commit(struct sun4i_backend *backend);
+static inline struct sun4i_backend *
+engine_to_sun4i_backend(struct sunxi_engine *engine)
+{
+ return container_of(engine, struct sun4i_backend, engine);
+}
void sun4i_backend_layer_enable(struct sun4i_backend *backend,
int layer, bool enable);
#include <video/videomode.h>
-#include "sun4i_backend.h"
#include "sun4i_crtc.h"
#include "sun4i_drv.h"
-#include "sun4i_layer.h"
+#include "sunxi_engine.h"
#include "sun4i_tcon.h"
static void sun4i_crtc_atomic_begin(struct drm_crtc *crtc,
DRM_DEBUG_DRIVER("Committing plane changes\n");
- sun4i_backend_commit(scrtc->backend);
+ sunxi_engine_commit(scrtc->engine);
if (event) {
crtc->state->event = NULL;
};
struct sun4i_crtc *sun4i_crtc_init(struct drm_device *drm,
- struct sun4i_backend *backend,
+ struct sunxi_engine *engine,
struct sun4i_tcon *tcon)
{
struct sun4i_crtc *scrtc;
scrtc = devm_kzalloc(drm->dev, sizeof(*scrtc), GFP_KERNEL);
if (!scrtc)
return ERR_PTR(-ENOMEM);
- scrtc->backend = backend;
+ scrtc->engine = engine;
scrtc->tcon = tcon;
/* Create our layers */
- planes = sun4i_layers_init(drm, scrtc);
+ planes = sunxi_engine_layers_init(drm, engine);
if (IS_ERR(planes)) {
dev_err(drm->dev, "Couldn't create the planes\n");
return NULL;
struct drm_crtc crtc;
struct drm_pending_vblank_event *event;
- struct sun4i_backend *backend;
+ struct sunxi_engine *engine;
struct sun4i_tcon *tcon;
};
}
struct sun4i_crtc *sun4i_crtc_init(struct drm_device *drm,
- struct sun4i_backend *backend,
+ struct sunxi_engine *engine,
struct sun4i_tcon *tcon);
#endif /* _SUN4I_CRTC_H_ */
goto free_drm;
}
drm->dev_private = drv;
- INIT_LIST_HEAD(&drv->backend_list);
+ INIT_LIST_HEAD(&drv->engine_list);
INIT_LIST_HEAD(&drv->tcon_list);
ret = of_reserved_mem_device_init(dev);
#include <linux/regmap.h>
struct sun4i_drv {
- struct list_head backend_list;
+ struct list_head engine_list;
struct list_head tcon_list;
struct drm_fbdev_cma *fbdev;
*/
#include <drm/drm_atomic_helper.h>
-#include <drm/drm_crtc.h>
#include <drm/drm_plane_helper.h>
#include <drm/drmP.h>
#include "sun4i_backend.h"
-#include "sun4i_crtc.h"
#include "sun4i_layer.h"
+#include "sunxi_engine.h"
struct sun4i_plane_desc {
enum drm_plane_type type;
}
struct drm_plane **sun4i_layers_init(struct drm_device *drm,
- struct sun4i_crtc *crtc)
+ struct sunxi_engine *engine)
{
struct drm_plane **planes;
- struct sun4i_backend *backend = crtc->backend;
+ struct sun4i_backend *backend = engine_to_sun4i_backend(engine);
int i;
planes = devm_kcalloc(drm->dev, ARRAY_SIZE(sun4i_backend_planes) + 1,
DRM_DEBUG_DRIVER("Assigning %s plane to pipe %d\n",
i ? "overlay" : "primary", plane->pipe);
- regmap_update_bits(backend->regs, SUN4I_BACKEND_ATTCTL_REG0(i),
+ regmap_update_bits(engine->regs, SUN4I_BACKEND_ATTCTL_REG0(i),
SUN4I_BACKEND_ATTCTL_REG0_LAY_PIPESEL_MASK,
SUN4I_BACKEND_ATTCTL_REG0_LAY_PIPESEL(plane->pipe));
#ifndef _SUN4I_LAYER_H_
#define _SUN4I_LAYER_H_
+struct sunxi_engine;
+
struct sun4i_layer {
struct drm_plane plane;
struct sun4i_drv *drv;
}
struct drm_plane **sun4i_layers_init(struct drm_device *drm,
- struct sun4i_crtc *crtc);
+ struct sunxi_engine *engine);
#endif /* _SUN4I_LAYER_H_ */
#include <linux/regmap.h>
#include <linux/reset.h>
-#include "sun4i_backend.h"
#include "sun4i_crtc.h"
#include "sun4i_dotclock.h"
#include "sun4i_drv.h"
#include "sun4i_rgb.h"
#include "sun4i_tcon.h"
+#include "sunxi_engine.h"
void sun4i_tcon_disable(struct sun4i_tcon *tcon)
{
* means maintaining a large list of them. Or, since the backend is
* registered and binded before the TCON, we can just go through the
* list of registered backends and compare the device node.
+ *
+ * As the structures now store engines instead of backends, here this
+ * function in fact searches the corresponding engine, and the ID is
+ * requested via the get_id function of the engine.
*/
-static struct sun4i_backend *sun4i_tcon_find_backend(struct sun4i_drv *drv,
- struct device_node *node)
+static struct sunxi_engine *sun4i_tcon_find_engine(struct sun4i_drv *drv,
+ struct device_node *node)
{
struct device_node *port, *ep, *remote;
- struct sun4i_backend *backend;
+ struct sunxi_engine *engine;
port = of_graph_get_port_by_id(node, 0);
if (!port)
if (!remote)
continue;
- /* does this node match any registered backends? */
- list_for_each_entry(backend, &drv->backend_list, list) {
- if (remote == backend->node) {
+ /* does this node match any registered engines? */
+ list_for_each_entry(engine, &drv->engine_list, list) {
+ if (remote == engine->node) {
of_node_put(remote);
of_node_put(port);
- return backend;
+ return engine;
}
}
/* keep looking through upstream ports */
- backend = sun4i_tcon_find_backend(drv, remote);
- if (!IS_ERR(backend)) {
+ engine = sun4i_tcon_find_engine(drv, remote);
+ if (!IS_ERR(engine)) {
of_node_put(remote);
of_node_put(port);
- return backend;
+ return engine;
}
}
{
struct drm_device *drm = data;
struct sun4i_drv *drv = drm->dev_private;
- struct sun4i_backend *backend;
+ struct sunxi_engine *engine;
struct sun4i_tcon *tcon;
int ret;
- backend = sun4i_tcon_find_backend(drv, dev->of_node);
- if (IS_ERR(backend)) {
- dev_err(dev, "Couldn't find matching backend\n");
+ engine = sun4i_tcon_find_engine(drv, dev->of_node);
+ if (IS_ERR(engine)) {
+ dev_err(dev, "Couldn't find matching engine\n");
return -EPROBE_DEFER;
}
dev_set_drvdata(dev, tcon);
tcon->drm = drm;
tcon->dev = dev;
- tcon->id = backend->id;
+ tcon->id = engine->id;
tcon->quirks = of_device_get_match_data(dev);
tcon->lcd_rst = devm_reset_control_get(dev, "lcd");
goto err_free_dotclock;
}
- tcon->crtc = sun4i_crtc_init(drm, backend, tcon);
+ tcon->crtc = sun4i_crtc_init(drm, engine, tcon);
if (IS_ERR(tcon->crtc)) {
dev_err(dev, "Couldn't create our CRTC\n");
ret = PTR_ERR(tcon->crtc);
#include <drm/drm_of.h>
#include <drm/drm_panel.h>
-#include "sun4i_backend.h"
#include "sun4i_crtc.h"
#include "sun4i_drv.h"
#include "sun4i_tcon.h"
+#include "sunxi_engine.h"
#define SUN4I_TVE_EN_REG 0x000
#define SUN4I_TVE_EN_DAC_MAP_MASK GENMASK(19, 4)
struct sun4i_tv *tv = drm_encoder_to_sun4i_tv(encoder);
struct sun4i_crtc *crtc = drm_crtc_to_sun4i_crtc(encoder->crtc);
struct sun4i_tcon *tcon = crtc->tcon;
- struct sun4i_backend *backend = crtc->backend;
DRM_DEBUG_DRIVER("Disabling the TV Output\n");
regmap_update_bits(tv->regs, SUN4I_TVE_EN_REG,
SUN4I_TVE_EN_ENABLE,
0);
- sun4i_backend_disable_color_correction(backend);
+
+ sunxi_engine_disable_color_correction(crtc->engine);
}
static void sun4i_tv_enable(struct drm_encoder *encoder)
struct sun4i_tv *tv = drm_encoder_to_sun4i_tv(encoder);
struct sun4i_crtc *crtc = drm_crtc_to_sun4i_crtc(encoder->crtc);
struct sun4i_tcon *tcon = crtc->tcon;
- struct sun4i_backend *backend = crtc->backend;
DRM_DEBUG_DRIVER("Enabling the TV Output\n");
- sun4i_backend_apply_color_correction(backend);
+ sunxi_engine_apply_color_correction(crtc->engine);
regmap_update_bits(tv->regs, SUN4I_TVE_EN_REG,
SUN4I_TVE_EN_ENABLE,
--- /dev/null
+/*
+ * Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
+ *
+ * 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.
+ */
+
+#ifndef _SUNXI_ENGINE_H_
+#define _SUNXI_ENGINE_H_
+
+struct drm_plane;
+struct drm_device;
+
+struct sunxi_engine;
+
+struct sunxi_engine_ops {
+ void (*commit)(struct sunxi_engine *engine);
+ struct drm_plane **(*layers_init)(struct drm_device *drm,
+ struct sunxi_engine *engine);
+
+ void (*apply_color_correction)(struct sunxi_engine *engine);
+ void (*disable_color_correction)(struct sunxi_engine *engine);
+};
+
+/**
+ * struct sunxi_engine - the common parts of an engine for sun4i-drm driver
+ * @ops: the operations of the engine
+ * @node: the of device node of the engine
+ * @regs: the regmap of the engine
+ * @id: the id of the engine (-1 if not used)
+ */
+struct sunxi_engine {
+ const struct sunxi_engine_ops *ops;
+
+ struct device_node *node;
+ struct regmap *regs;
+
+ int id;
+
+ /* Engine list management */
+ struct list_head list;
+};
+
+/**
+ * sunxi_engine_commit() - commit all changes of the engine
+ * @engine: pointer to the engine
+ */
+static inline void
+sunxi_engine_commit(struct sunxi_engine *engine)
+{
+ if (engine->ops && engine->ops->commit)
+ engine->ops->commit(engine);
+}
+
+/**
+ * sunxi_engine_layers_init() - Create planes (layers) for the engine
+ * @drm: pointer to the drm_device for which planes will be created
+ * @engine: pointer to the engine
+ */
+static inline struct drm_plane **
+sunxi_engine_layers_init(struct drm_device *drm, struct sunxi_engine *engine)
+{
+ if (engine->ops && engine->ops->layers_init)
+ return engine->ops->layers_init(drm, engine);
+ return ERR_PTR(-ENOSYS);
+}
+
+/**
+ * sunxi_engine_apply_color_correction - Apply the RGB2YUV color correction
+ * @engine: pointer to the engine
+ *
+ * This functionality is optional for an engine, however, if the engine is
+ * intended to be used with TV Encoder, the output will be incorrect
+ * without the color correction, due to TV Encoder expects the engine to
+ * output directly YUV signal.
+ */
+static inline void
+sunxi_engine_apply_color_correction(struct sunxi_engine *engine)
+{
+ if (engine->ops && engine->ops->apply_color_correction)
+ engine->ops->apply_color_correction(engine);
+}
+
+/**
+ * sunxi_engine_disable_color_correction - Disable the color space correction
+ * @engine: pointer to the engine
+ *
+ * This function is paired with apply_color_correction().
+ */
+static inline void
+sunxi_engine_disable_color_correction(struct sunxi_engine *engine)
+{
+ if (engine->ops && engine->ops->disable_color_correction)
+ engine->ops->disable_color_correction(engine);
+}
+#endif /* _SUNXI_ENGINE_H_ */
projects / linux-2.6-block.git / commitdiff