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f95ec3c6 RB |
1 | /* |
2 | * BRIEF MODULE DESCRIPTION | |
3 | * Au1200 LCD Driver. | |
4 | * | |
5 | * Copyright 2004-2005 AMD | |
6 | * Author: AMD | |
7 | * | |
8 | * Based on: | |
9 | * linux/drivers/video/skeletonfb.c -- Skeleton for a frame buffer device | |
10 | * Created 28 Dec 1997 by Geert Uytterhoeven | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or modify it | |
f95ec3c6 RB |
13 | * under the terms of the GNU General Public License as published by the |
14 | * Free Software Foundation; either version 2 of the License, or (at your | |
15 | * option) any later version. | |
16 | * | |
17 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
19 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN | |
20 | * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF | |
23 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON | |
24 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
27 | * | |
28 | * You should have received a copy of the GNU General Public License along | |
29 | * with this program; if not, write to the Free Software Foundation, Inc., | |
30 | * 675 Mass Ave, Cambridge, MA 02139, USA. | |
31 | */ | |
32 | ||
ecc2ea3b | 33 | #include <linux/clk.h> |
f95ec3c6 RB |
34 | #include <linux/module.h> |
35 | #include <linux/platform_device.h> | |
36 | #include <linux/kernel.h> | |
37 | #include <linux/errno.h> | |
38 | #include <linux/string.h> | |
39 | #include <linux/mm.h> | |
40 | #include <linux/fb.h> | |
41 | #include <linux/init.h> | |
42 | #include <linux/interrupt.h> | |
43 | #include <linux/ctype.h> | |
44 | #include <linux/dma-mapping.h> | |
5a0e3ad6 | 45 | #include <linux/slab.h> |
29abfbd9 | 46 | #include <linux/uaccess.h> |
f95ec3c6 RB |
47 | |
48 | #include <asm/mach-au1x00/au1000.h> | |
a9b71a8f | 49 | #include <asm/mach-au1x00/au1200fb.h> /* platform_data */ |
f95ec3c6 RB |
50 | #include "au1200fb.h" |
51 | ||
f95ec3c6 RB |
52 | #define DRIVER_NAME "au1200fb" |
53 | #define DRIVER_DESC "LCD controller driver for AU1200 processors" | |
54 | ||
f49446eb | 55 | #define DEBUG 0 |
f95ec3c6 RB |
56 | |
57 | #define print_err(f, arg...) printk(KERN_ERR DRIVER_NAME ": " f "\n", ## arg) | |
58 | #define print_warn(f, arg...) printk(KERN_WARNING DRIVER_NAME ": " f "\n", ## arg) | |
59 | #define print_info(f, arg...) printk(KERN_INFO DRIVER_NAME ": " f "\n", ## arg) | |
60 | ||
61 | #if DEBUG | |
62 | #define print_dbg(f, arg...) printk(KERN_DEBUG __FILE__ ": " f "\n", ## arg) | |
63 | #else | |
64 | #define print_dbg(f, arg...) do {} while (0) | |
65 | #endif | |
66 | ||
67 | ||
68 | #define AU1200_LCD_FB_IOCTL 0x46FF | |
69 | ||
70 | #define AU1200_LCD_SET_SCREEN 1 | |
71 | #define AU1200_LCD_GET_SCREEN 2 | |
72 | #define AU1200_LCD_SET_WINDOW 3 | |
73 | #define AU1200_LCD_GET_WINDOW 4 | |
74 | #define AU1200_LCD_SET_PANEL 5 | |
75 | #define AU1200_LCD_GET_PANEL 6 | |
76 | ||
77 | #define SCREEN_SIZE (1<< 1) | |
78 | #define SCREEN_BACKCOLOR (1<< 2) | |
79 | #define SCREEN_BRIGHTNESS (1<< 3) | |
80 | #define SCREEN_COLORKEY (1<< 4) | |
81 | #define SCREEN_MASK (1<< 5) | |
82 | ||
83 | struct au1200_lcd_global_regs_t { | |
84 | unsigned int flags; | |
85 | unsigned int xsize; | |
86 | unsigned int ysize; | |
87 | unsigned int backcolor; | |
88 | unsigned int brightness; | |
89 | unsigned int colorkey; | |
90 | unsigned int mask; | |
91 | unsigned int panel_choice; | |
92 | char panel_desc[80]; | |
93 | ||
94 | }; | |
95 | ||
96 | #define WIN_POSITION (1<< 0) | |
97 | #define WIN_ALPHA_COLOR (1<< 1) | |
98 | #define WIN_ALPHA_MODE (1<< 2) | |
99 | #define WIN_PRIORITY (1<< 3) | |
100 | #define WIN_CHANNEL (1<< 4) | |
101 | #define WIN_BUFFER_FORMAT (1<< 5) | |
102 | #define WIN_COLOR_ORDER (1<< 6) | |
103 | #define WIN_PIXEL_ORDER (1<< 7) | |
104 | #define WIN_SIZE (1<< 8) | |
105 | #define WIN_COLORKEY_MODE (1<< 9) | |
106 | #define WIN_DOUBLE_BUFFER_MODE (1<< 10) | |
107 | #define WIN_RAM_ARRAY_MODE (1<< 11) | |
108 | #define WIN_BUFFER_SCALE (1<< 12) | |
109 | #define WIN_ENABLE (1<< 13) | |
110 | ||
111 | struct au1200_lcd_window_regs_t { | |
112 | unsigned int flags; | |
113 | unsigned int xpos; | |
114 | unsigned int ypos; | |
115 | unsigned int alpha_color; | |
116 | unsigned int alpha_mode; | |
117 | unsigned int priority; | |
118 | unsigned int channel; | |
119 | unsigned int buffer_format; | |
120 | unsigned int color_order; | |
121 | unsigned int pixel_order; | |
122 | unsigned int xsize; | |
123 | unsigned int ysize; | |
124 | unsigned int colorkey_mode; | |
125 | unsigned int double_buffer_mode; | |
126 | unsigned int ram_array_mode; | |
127 | unsigned int xscale; | |
128 | unsigned int yscale; | |
129 | unsigned int enable; | |
130 | }; | |
131 | ||
132 | ||
133 | struct au1200_lcd_iodata_t { | |
134 | unsigned int subcmd; | |
135 | struct au1200_lcd_global_regs_t global; | |
136 | struct au1200_lcd_window_regs_t window; | |
137 | }; | |
138 | ||
139 | #if defined(__BIG_ENDIAN) | |
140 | #define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_11 | |
141 | #else | |
142 | #define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_00 | |
143 | #endif | |
144 | #define LCD_CONTROL_DEFAULT_SBPPF LCD_CONTROL_SBPPF_565 | |
145 | ||
146 | /* Private, per-framebuffer management information (independent of the panel itself) */ | |
147 | struct au1200fb_device { | |
c329f606 | 148 | struct fb_info *fb_info; /* FB driver info record */ |
a9b71a8f | 149 | struct au1200fb_platdata *pd; |
f95ec3c6 RB |
150 | |
151 | int plane; | |
152 | unsigned char* fb_mem; /* FrameBuffer memory map */ | |
153 | unsigned int fb_len; | |
154 | dma_addr_t fb_phys; | |
155 | }; | |
156 | ||
f95ec3c6 RB |
157 | /********************************************************************/ |
158 | ||
159 | /* LCD controller restrictions */ | |
160 | #define AU1200_LCD_MAX_XRES 1280 | |
161 | #define AU1200_LCD_MAX_YRES 1024 | |
162 | #define AU1200_LCD_MAX_BPP 32 | |
163 | #define AU1200_LCD_MAX_CLK 96000000 /* fixme: this needs to go away ? */ | |
164 | #define AU1200_LCD_NBR_PALETTE_ENTRIES 256 | |
165 | ||
166 | /* Default number of visible screen buffer to allocate */ | |
167 | #define AU1200FB_NBR_VIDEO_BUFFERS 1 | |
168 | ||
8be90b07 ML |
169 | /* Default maximum number of fb devices to create */ |
170 | #define MAX_DEVICE_COUNT 4 | |
171 | ||
172 | /* Default window configuration entry to use (see windows[]) */ | |
173 | #define DEFAULT_WINDOW_INDEX 2 | |
174 | ||
f95ec3c6 RB |
175 | /********************************************************************/ |
176 | ||
8be90b07 | 177 | static struct fb_info *_au1200fb_infos[MAX_DEVICE_COUNT]; |
f95ec3c6 | 178 | static struct au1200_lcd *lcd = (struct au1200_lcd *) AU1200_LCD_ADDR; |
8be90b07 ML |
179 | static int device_count = MAX_DEVICE_COUNT; |
180 | static int window_index = DEFAULT_WINDOW_INDEX; /* default is zero */ | |
f95ec3c6 RB |
181 | static int panel_index = 2; /* default is zero */ |
182 | static struct window_settings *win; | |
183 | static struct panel_settings *panel; | |
184 | static int noblanking = 1; | |
185 | static int nohwcursor = 0; | |
186 | ||
187 | struct window_settings { | |
188 | unsigned char name[64]; | |
189 | uint32 mode_backcolor; | |
190 | uint32 mode_colorkey; | |
191 | uint32 mode_colorkeymsk; | |
192 | struct { | |
193 | int xres; | |
194 | int yres; | |
195 | int xpos; | |
196 | int ypos; | |
197 | uint32 mode_winctrl1; /* winctrl1[FRM,CCO,PO,PIPE] */ | |
198 | uint32 mode_winenable; | |
199 | } w[4]; | |
200 | }; | |
201 | ||
202 | #if defined(__BIG_ENDIAN) | |
203 | #define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_00 | |
204 | #else | |
205 | #define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_01 | |
206 | #endif | |
207 | ||
f95ec3c6 RB |
208 | /* |
209 | * Default window configurations | |
210 | */ | |
211 | static struct window_settings windows[] = { | |
212 | { /* Index 0 */ | |
213 | "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx", | |
214 | /* mode_backcolor */ 0x006600ff, | |
215 | /* mode_colorkey,msk*/ 0, 0, | |
216 | { | |
217 | { | |
218 | /* xres, yres, xpos, ypos */ 0, 0, 0, 0, | |
219 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | | |
220 | LCD_WINCTRL1_PO_16BPP, | |
221 | /* mode_winenable*/ LCD_WINENABLE_WEN0, | |
222 | }, | |
223 | { | |
224 | /* xres, yres, xpos, ypos */ 100, 100, 100, 100, | |
225 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | | |
226 | LCD_WINCTRL1_PO_16BPP | | |
227 | LCD_WINCTRL1_PIPE, | |
228 | /* mode_winenable*/ LCD_WINENABLE_WEN1, | |
229 | }, | |
230 | { | |
231 | /* xres, yres, xpos, ypos */ 0, 0, 0, 0, | |
232 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | | |
233 | LCD_WINCTRL1_PO_16BPP, | |
234 | /* mode_winenable*/ 0, | |
235 | }, | |
236 | { | |
237 | /* xres, yres, xpos, ypos */ 0, 0, 0, 0, | |
238 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | | |
239 | LCD_WINCTRL1_PO_16BPP | | |
240 | LCD_WINCTRL1_PIPE, | |
241 | /* mode_winenable*/ 0, | |
242 | }, | |
243 | }, | |
244 | }, | |
245 | ||
246 | { /* Index 1 */ | |
247 | "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx", | |
248 | /* mode_backcolor */ 0x006600ff, | |
249 | /* mode_colorkey,msk*/ 0, 0, | |
250 | { | |
251 | { | |
252 | /* xres, yres, xpos, ypos */ 320, 240, 5, 5, | |
253 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_24BPP | | |
254 | LCD_WINCTRL1_PO_00, | |
255 | /* mode_winenable*/ LCD_WINENABLE_WEN0, | |
256 | }, | |
257 | { | |
258 | /* xres, yres, xpos, ypos */ 0, 0, 0, 0, | |
259 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | |
260 | | LCD_WINCTRL1_PO_16BPP, | |
261 | /* mode_winenable*/ 0, | |
262 | }, | |
263 | { | |
264 | /* xres, yres, xpos, ypos */ 100, 100, 0, 0, | |
265 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | | |
266 | LCD_WINCTRL1_PO_16BPP | | |
267 | LCD_WINCTRL1_PIPE, | |
268 | /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/, | |
269 | }, | |
270 | { | |
271 | /* xres, yres, xpos, ypos */ 200, 25, 0, 0, | |
272 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | | |
273 | LCD_WINCTRL1_PO_16BPP | | |
274 | LCD_WINCTRL1_PIPE, | |
275 | /* mode_winenable*/ 0, | |
276 | }, | |
277 | }, | |
278 | }, | |
279 | { /* Index 2 */ | |
280 | "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx", | |
281 | /* mode_backcolor */ 0x006600ff, | |
282 | /* mode_colorkey,msk*/ 0, 0, | |
283 | { | |
284 | { | |
285 | /* xres, yres, xpos, ypos */ 0, 0, 0, 0, | |
286 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | | |
287 | LCD_WINCTRL1_PO_16BPP, | |
288 | /* mode_winenable*/ LCD_WINENABLE_WEN0, | |
289 | }, | |
290 | { | |
291 | /* xres, yres, xpos, ypos */ 0, 0, 0, 0, | |
292 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | | |
293 | LCD_WINCTRL1_PO_16BPP, | |
294 | /* mode_winenable*/ 0, | |
295 | }, | |
296 | { | |
297 | /* xres, yres, xpos, ypos */ 0, 0, 0, 0, | |
298 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_32BPP | | |
299 | LCD_WINCTRL1_PO_00|LCD_WINCTRL1_PIPE, | |
300 | /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/, | |
301 | }, | |
302 | { | |
303 | /* xres, yres, xpos, ypos */ 0, 0, 0, 0, | |
304 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | | |
305 | LCD_WINCTRL1_PO_16BPP | | |
306 | LCD_WINCTRL1_PIPE, | |
307 | /* mode_winenable*/ 0, | |
308 | }, | |
309 | }, | |
310 | }, | |
311 | /* Need VGA 640 @ 24bpp, @ 32bpp */ | |
312 | /* Need VGA 800 @ 24bpp, @ 32bpp */ | |
313 | /* Need VGA 1024 @ 24bpp, @ 32bpp */ | |
314 | }; | |
315 | ||
316 | /* | |
317 | * Controller configurations for various panels. | |
318 | */ | |
319 | ||
320 | struct panel_settings | |
321 | { | |
322 | const char name[25]; /* Full name <vendor>_<model> */ | |
323 | ||
324 | struct fb_monspecs monspecs; /* FB monitor specs */ | |
325 | ||
326 | /* panel timings */ | |
327 | uint32 mode_screen; | |
328 | uint32 mode_horztiming; | |
329 | uint32 mode_verttiming; | |
330 | uint32 mode_clkcontrol; | |
331 | uint32 mode_pwmdiv; | |
332 | uint32 mode_pwmhi; | |
333 | uint32 mode_outmask; | |
334 | uint32 mode_fifoctrl; | |
f95ec3c6 | 335 | uint32 mode_backlight; |
ecc2ea3b | 336 | uint32 lcdclk; |
f95ec3c6 RB |
337 | #define Xres min_xres |
338 | #define Yres min_yres | |
339 | u32 min_xres; /* Minimum horizontal resolution */ | |
340 | u32 max_xres; /* Maximum horizontal resolution */ | |
341 | u32 min_yres; /* Minimum vertical resolution */ | |
342 | u32 max_yres; /* Maximum vertical resolution */ | |
343 | }; | |
344 | ||
345 | /********************************************************************/ | |
346 | /* fixme: Maybe a modedb for the CRT ? otherwise panels should be as-is */ | |
347 | ||
348 | /* List of panels known to work with the AU1200 LCD controller. | |
349 | * To add a new panel, enter the same specifications as the | |
350 | * Generic_TFT one, and MAKE SURE that it doesn't conflicts | |
351 | * with the controller restrictions. Restrictions are: | |
352 | * | |
353 | * STN color panels: max_bpp <= 12 | |
354 | * STN mono panels: max_bpp <= 4 | |
355 | * TFT panels: max_bpp <= 16 | |
356 | * max_xres <= 800 | |
357 | * max_yres <= 600 | |
358 | */ | |
359 | static struct panel_settings known_lcd_panels[] = | |
360 | { | |
361 | [0] = { /* QVGA 320x240 H:33.3kHz V:110Hz */ | |
362 | .name = "QVGA_320x240", | |
363 | .monspecs = { | |
364 | .modedb = NULL, | |
365 | .modedb_len = 0, | |
366 | .hfmin = 30000, | |
367 | .hfmax = 70000, | |
368 | .vfmin = 60, | |
369 | .vfmax = 60, | |
370 | .dclkmin = 6000000, | |
371 | .dclkmax = 28000000, | |
372 | .input = FB_DISP_RGB, | |
373 | }, | |
374 | .mode_screen = LCD_SCREEN_SX_N(320) | | |
375 | LCD_SCREEN_SY_N(240), | |
376 | .mode_horztiming = 0x00c4623b, | |
377 | .mode_verttiming = 0x00502814, | |
378 | .mode_clkcontrol = 0x00020002, /* /4=24Mhz */ | |
379 | .mode_pwmdiv = 0x00000000, | |
380 | .mode_pwmhi = 0x00000000, | |
381 | .mode_outmask = 0x00FFFFFF, | |
382 | .mode_fifoctrl = 0x2f2f2f2f, | |
f95ec3c6 | 383 | .mode_backlight = 0x00000000, |
ecc2ea3b | 384 | .lcdclk = 96, |
f95ec3c6 RB |
385 | 320, 320, |
386 | 240, 240, | |
387 | }, | |
388 | ||
389 | [1] = { /* VGA 640x480 H:30.3kHz V:58Hz */ | |
390 | .name = "VGA_640x480", | |
391 | .monspecs = { | |
392 | .modedb = NULL, | |
393 | .modedb_len = 0, | |
394 | .hfmin = 30000, | |
395 | .hfmax = 70000, | |
396 | .vfmin = 60, | |
397 | .vfmax = 60, | |
398 | .dclkmin = 6000000, | |
399 | .dclkmax = 28000000, | |
400 | .input = FB_DISP_RGB, | |
401 | }, | |
402 | .mode_screen = 0x13f9df80, | |
403 | .mode_horztiming = 0x003c5859, | |
404 | .mode_verttiming = 0x00741201, | |
405 | .mode_clkcontrol = 0x00020001, /* /4=24Mhz */ | |
406 | .mode_pwmdiv = 0x00000000, | |
407 | .mode_pwmhi = 0x00000000, | |
408 | .mode_outmask = 0x00FFFFFF, | |
409 | .mode_fifoctrl = 0x2f2f2f2f, | |
f95ec3c6 | 410 | .mode_backlight = 0x00000000, |
ecc2ea3b | 411 | .lcdclk = 96, |
f95ec3c6 RB |
412 | 640, 480, |
413 | 640, 480, | |
414 | }, | |
415 | ||
416 | [2] = { /* SVGA 800x600 H:46.1kHz V:69Hz */ | |
417 | .name = "SVGA_800x600", | |
418 | .monspecs = { | |
419 | .modedb = NULL, | |
420 | .modedb_len = 0, | |
421 | .hfmin = 30000, | |
422 | .hfmax = 70000, | |
423 | .vfmin = 60, | |
424 | .vfmax = 60, | |
425 | .dclkmin = 6000000, | |
426 | .dclkmax = 28000000, | |
427 | .input = FB_DISP_RGB, | |
428 | }, | |
429 | .mode_screen = 0x18fa5780, | |
430 | .mode_horztiming = 0x00dc7e77, | |
431 | .mode_verttiming = 0x00584805, | |
432 | .mode_clkcontrol = 0x00020000, /* /2=48Mhz */ | |
433 | .mode_pwmdiv = 0x00000000, | |
434 | .mode_pwmhi = 0x00000000, | |
435 | .mode_outmask = 0x00FFFFFF, | |
436 | .mode_fifoctrl = 0x2f2f2f2f, | |
f95ec3c6 | 437 | .mode_backlight = 0x00000000, |
ecc2ea3b | 438 | .lcdclk = 96, |
f95ec3c6 RB |
439 | 800, 800, |
440 | 600, 600, | |
441 | }, | |
442 | ||
443 | [3] = { /* XVGA 1024x768 H:56.2kHz V:70Hz */ | |
444 | .name = "XVGA_1024x768", | |
445 | .monspecs = { | |
446 | .modedb = NULL, | |
447 | .modedb_len = 0, | |
448 | .hfmin = 30000, | |
449 | .hfmax = 70000, | |
450 | .vfmin = 60, | |
451 | .vfmax = 60, | |
452 | .dclkmin = 6000000, | |
453 | .dclkmax = 28000000, | |
454 | .input = FB_DISP_RGB, | |
455 | }, | |
456 | .mode_screen = 0x1ffaff80, | |
457 | .mode_horztiming = 0x007d0e57, | |
458 | .mode_verttiming = 0x00740a01, | |
459 | .mode_clkcontrol = 0x000A0000, /* /1 */ | |
460 | .mode_pwmdiv = 0x00000000, | |
461 | .mode_pwmhi = 0x00000000, | |
462 | .mode_outmask = 0x00FFFFFF, | |
463 | .mode_fifoctrl = 0x2f2f2f2f, | |
f95ec3c6 | 464 | .mode_backlight = 0x00000000, |
ecc2ea3b | 465 | .lcdclk = 72, |
f95ec3c6 RB |
466 | 1024, 1024, |
467 | 768, 768, | |
468 | }, | |
469 | ||
470 | [4] = { /* XVGA XVGA 1280x1024 H:68.5kHz V:65Hz */ | |
471 | .name = "XVGA_1280x1024", | |
472 | .monspecs = { | |
473 | .modedb = NULL, | |
474 | .modedb_len = 0, | |
475 | .hfmin = 30000, | |
476 | .hfmax = 70000, | |
477 | .vfmin = 60, | |
478 | .vfmax = 60, | |
479 | .dclkmin = 6000000, | |
480 | .dclkmax = 28000000, | |
481 | .input = FB_DISP_RGB, | |
482 | }, | |
483 | .mode_screen = 0x27fbff80, | |
484 | .mode_horztiming = 0x00cdb2c7, | |
485 | .mode_verttiming = 0x00600002, | |
486 | .mode_clkcontrol = 0x000A0000, /* /1 */ | |
487 | .mode_pwmdiv = 0x00000000, | |
488 | .mode_pwmhi = 0x00000000, | |
489 | .mode_outmask = 0x00FFFFFF, | |
490 | .mode_fifoctrl = 0x2f2f2f2f, | |
f95ec3c6 | 491 | .mode_backlight = 0x00000000, |
ecc2ea3b | 492 | .lcdclk = 120, |
f95ec3c6 RB |
493 | 1280, 1280, |
494 | 1024, 1024, | |
495 | }, | |
496 | ||
497 | [5] = { /* Samsung 1024x768 TFT */ | |
498 | .name = "Samsung_1024x768_TFT", | |
499 | .monspecs = { | |
500 | .modedb = NULL, | |
501 | .modedb_len = 0, | |
502 | .hfmin = 30000, | |
503 | .hfmax = 70000, | |
504 | .vfmin = 60, | |
505 | .vfmax = 60, | |
506 | .dclkmin = 6000000, | |
507 | .dclkmax = 28000000, | |
508 | .input = FB_DISP_RGB, | |
509 | }, | |
510 | .mode_screen = 0x1ffaff80, | |
511 | .mode_horztiming = 0x018cc677, | |
512 | .mode_verttiming = 0x00241217, | |
513 | .mode_clkcontrol = 0x00000000, /* SCB 0x1 /4=24Mhz */ | |
514 | .mode_pwmdiv = 0x8000063f, /* SCB 0x0 */ | |
515 | .mode_pwmhi = 0x03400000, /* SCB 0x0 */ | |
516 | .mode_outmask = 0x00FFFFFF, | |
517 | .mode_fifoctrl = 0x2f2f2f2f, | |
f95ec3c6 | 518 | .mode_backlight = 0x00000000, |
ecc2ea3b | 519 | .lcdclk = 96, |
f95ec3c6 RB |
520 | 1024, 1024, |
521 | 768, 768, | |
522 | }, | |
523 | ||
524 | [6] = { /* Toshiba 640x480 TFT */ | |
525 | .name = "Toshiba_640x480_TFT", | |
526 | .monspecs = { | |
527 | .modedb = NULL, | |
528 | .modedb_len = 0, | |
529 | .hfmin = 30000, | |
530 | .hfmax = 70000, | |
531 | .vfmin = 60, | |
532 | .vfmax = 60, | |
533 | .dclkmin = 6000000, | |
534 | .dclkmax = 28000000, | |
535 | .input = FB_DISP_RGB, | |
536 | }, | |
537 | .mode_screen = LCD_SCREEN_SX_N(640) | | |
538 | LCD_SCREEN_SY_N(480), | |
539 | .mode_horztiming = LCD_HORZTIMING_HPW_N(96) | | |
540 | LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(51), | |
541 | .mode_verttiming = LCD_VERTTIMING_VPW_N(2) | | |
542 | LCD_VERTTIMING_VND1_N(11) | LCD_VERTTIMING_VND2_N(32), | |
543 | .mode_clkcontrol = 0x00000000, /* /4=24Mhz */ | |
544 | .mode_pwmdiv = 0x8000063f, | |
545 | .mode_pwmhi = 0x03400000, | |
546 | .mode_outmask = 0x00fcfcfc, | |
547 | .mode_fifoctrl = 0x2f2f2f2f, | |
f95ec3c6 | 548 | .mode_backlight = 0x00000000, |
ecc2ea3b | 549 | .lcdclk = 96, |
f95ec3c6 RB |
550 | 640, 480, |
551 | 640, 480, | |
552 | }, | |
553 | ||
554 | [7] = { /* Sharp 320x240 TFT */ | |
555 | .name = "Sharp_320x240_TFT", | |
556 | .monspecs = { | |
557 | .modedb = NULL, | |
558 | .modedb_len = 0, | |
559 | .hfmin = 12500, | |
560 | .hfmax = 20000, | |
561 | .vfmin = 38, | |
562 | .vfmax = 81, | |
563 | .dclkmin = 4500000, | |
564 | .dclkmax = 6800000, | |
565 | .input = FB_DISP_RGB, | |
566 | }, | |
567 | .mode_screen = LCD_SCREEN_SX_N(320) | | |
568 | LCD_SCREEN_SY_N(240), | |
569 | .mode_horztiming = LCD_HORZTIMING_HPW_N(60) | | |
570 | LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(2), | |
571 | .mode_verttiming = LCD_VERTTIMING_VPW_N(2) | | |
572 | LCD_VERTTIMING_VND1_N(2) | LCD_VERTTIMING_VND2_N(5), | |
573 | .mode_clkcontrol = LCD_CLKCONTROL_PCD_N(7), /*16=6Mhz*/ | |
574 | .mode_pwmdiv = 0x8000063f, | |
575 | .mode_pwmhi = 0x03400000, | |
576 | .mode_outmask = 0x00fcfcfc, | |
577 | .mode_fifoctrl = 0x2f2f2f2f, | |
f95ec3c6 | 578 | .mode_backlight = 0x00000000, |
ecc2ea3b | 579 | .lcdclk = 96, /* 96MHz AUXPLL */ |
f95ec3c6 RB |
580 | 320, 320, |
581 | 240, 240, | |
582 | }, | |
583 | ||
584 | [8] = { /* Toppoly TD070WGCB2 7" 856x480 TFT */ | |
585 | .name = "Toppoly_TD070WGCB2", | |
586 | .monspecs = { | |
587 | .modedb = NULL, | |
588 | .modedb_len = 0, | |
589 | .hfmin = 30000, | |
590 | .hfmax = 70000, | |
591 | .vfmin = 60, | |
592 | .vfmax = 60, | |
593 | .dclkmin = 6000000, | |
594 | .dclkmax = 28000000, | |
595 | .input = FB_DISP_RGB, | |
596 | }, | |
597 | .mode_screen = LCD_SCREEN_SX_N(856) | | |
598 | LCD_SCREEN_SY_N(480), | |
599 | .mode_horztiming = LCD_HORZTIMING_HND2_N(43) | | |
600 | LCD_HORZTIMING_HND1_N(43) | LCD_HORZTIMING_HPW_N(114), | |
601 | .mode_verttiming = LCD_VERTTIMING_VND2_N(20) | | |
602 | LCD_VERTTIMING_VND1_N(21) | LCD_VERTTIMING_VPW_N(4), | |
603 | .mode_clkcontrol = 0x00020001, /* /4=24Mhz */ | |
604 | .mode_pwmdiv = 0x8000063f, | |
605 | .mode_pwmhi = 0x03400000, | |
606 | .mode_outmask = 0x00fcfcfc, | |
607 | .mode_fifoctrl = 0x2f2f2f2f, | |
f95ec3c6 | 608 | .mode_backlight = 0x00000000, |
ecc2ea3b | 609 | .lcdclk = 96, |
f95ec3c6 RB |
610 | 856, 856, |
611 | 480, 480, | |
612 | }, | |
64cd04d0 ML |
613 | [9] = { |
614 | .name = "DB1300_800x480", | |
615 | .monspecs = { | |
616 | .modedb = NULL, | |
617 | .modedb_len = 0, | |
618 | .hfmin = 30000, | |
619 | .hfmax = 70000, | |
620 | .vfmin = 60, | |
621 | .vfmax = 60, | |
622 | .dclkmin = 6000000, | |
623 | .dclkmax = 28000000, | |
624 | .input = FB_DISP_RGB, | |
625 | }, | |
626 | .mode_screen = LCD_SCREEN_SX_N(800) | | |
627 | LCD_SCREEN_SY_N(480), | |
628 | .mode_horztiming = LCD_HORZTIMING_HPW_N(5) | | |
629 | LCD_HORZTIMING_HND1_N(16) | | |
630 | LCD_HORZTIMING_HND2_N(8), | |
631 | .mode_verttiming = LCD_VERTTIMING_VPW_N(4) | | |
632 | LCD_VERTTIMING_VND1_N(8) | | |
633 | LCD_VERTTIMING_VND2_N(5), | |
634 | .mode_clkcontrol = LCD_CLKCONTROL_PCD_N(1) | | |
635 | LCD_CLKCONTROL_IV | | |
636 | LCD_CLKCONTROL_IH, | |
637 | .mode_pwmdiv = 0x00000000, | |
638 | .mode_pwmhi = 0x00000000, | |
639 | .mode_outmask = 0x00FFFFFF, | |
640 | .mode_fifoctrl = 0x2f2f2f2f, | |
64cd04d0 | 641 | .mode_backlight = 0x00000000, |
ecc2ea3b | 642 | .lcdclk = 96, |
64cd04d0 ML |
643 | 800, 800, |
644 | 480, 480, | |
645 | }, | |
f95ec3c6 RB |
646 | }; |
647 | ||
648 | #define NUM_PANELS (ARRAY_SIZE(known_lcd_panels)) | |
649 | ||
650 | /********************************************************************/ | |
651 | ||
f95ec3c6 RB |
652 | static int winbpp (unsigned int winctrl1) |
653 | { | |
654 | int bits = 0; | |
655 | ||
656 | /* how many bits are needed for each pixel format */ | |
657 | switch (winctrl1 & LCD_WINCTRL1_FRM) { | |
658 | case LCD_WINCTRL1_FRM_1BPP: | |
659 | bits = 1; | |
660 | break; | |
661 | case LCD_WINCTRL1_FRM_2BPP: | |
662 | bits = 2; | |
663 | break; | |
664 | case LCD_WINCTRL1_FRM_4BPP: | |
665 | bits = 4; | |
666 | break; | |
667 | case LCD_WINCTRL1_FRM_8BPP: | |
668 | bits = 8; | |
669 | break; | |
670 | case LCD_WINCTRL1_FRM_12BPP: | |
671 | case LCD_WINCTRL1_FRM_16BPP655: | |
672 | case LCD_WINCTRL1_FRM_16BPP565: | |
673 | case LCD_WINCTRL1_FRM_16BPP556: | |
674 | case LCD_WINCTRL1_FRM_16BPPI1555: | |
675 | case LCD_WINCTRL1_FRM_16BPPI5551: | |
676 | case LCD_WINCTRL1_FRM_16BPPA1555: | |
677 | case LCD_WINCTRL1_FRM_16BPPA5551: | |
678 | bits = 16; | |
679 | break; | |
680 | case LCD_WINCTRL1_FRM_24BPP: | |
681 | case LCD_WINCTRL1_FRM_32BPP: | |
682 | bits = 32; | |
683 | break; | |
684 | } | |
685 | ||
686 | return bits; | |
687 | } | |
688 | ||
689 | static int fbinfo2index (struct fb_info *fb_info) | |
690 | { | |
691 | int i; | |
692 | ||
8be90b07 | 693 | for (i = 0; i < device_count; ++i) { |
c329f606 | 694 | if (fb_info == _au1200fb_infos[i]) |
f95ec3c6 RB |
695 | return i; |
696 | } | |
697 | printk("au1200fb: ERROR: fbinfo2index failed!\n"); | |
698 | return -1; | |
699 | } | |
700 | ||
701 | static int au1200_setlocation (struct au1200fb_device *fbdev, int plane, | |
702 | int xpos, int ypos) | |
703 | { | |
704 | uint32 winctrl0, winctrl1, winenable, fb_offset = 0; | |
705 | int xsz, ysz; | |
706 | ||
707 | /* FIX!!! NOT CHECKING FOR COMPLETE OFFSCREEN YET */ | |
708 | ||
709 | winctrl0 = lcd->window[plane].winctrl0; | |
710 | winctrl1 = lcd->window[plane].winctrl1; | |
711 | winctrl0 &= (LCD_WINCTRL0_A | LCD_WINCTRL0_AEN); | |
712 | winctrl1 &= ~(LCD_WINCTRL1_SZX | LCD_WINCTRL1_SZY); | |
713 | ||
714 | /* Check for off-screen adjustments */ | |
715 | xsz = win->w[plane].xres; | |
716 | ysz = win->w[plane].yres; | |
717 | if ((xpos + win->w[plane].xres) > panel->Xres) { | |
718 | /* Off-screen to the right */ | |
719 | xsz = panel->Xres - xpos; /* off by 1 ??? */ | |
720 | /*printk("off screen right\n");*/ | |
721 | } | |
722 | ||
723 | if ((ypos + win->w[plane].yres) > panel->Yres) { | |
724 | /* Off-screen to the bottom */ | |
725 | ysz = panel->Yres - ypos; /* off by 1 ??? */ | |
726 | /*printk("off screen bottom\n");*/ | |
727 | } | |
728 | ||
729 | if (xpos < 0) { | |
730 | /* Off-screen to the left */ | |
731 | xsz = win->w[plane].xres + xpos; | |
732 | fb_offset += (((0 - xpos) * winbpp(lcd->window[plane].winctrl1))/8); | |
733 | xpos = 0; | |
734 | /*printk("off screen left\n");*/ | |
735 | } | |
736 | ||
737 | if (ypos < 0) { | |
738 | /* Off-screen to the top */ | |
739 | ysz = win->w[plane].yres + ypos; | |
740 | /* fixme: fb_offset += ((0-ypos)*fb_pars[plane].line_length); */ | |
741 | ypos = 0; | |
742 | /*printk("off screen top\n");*/ | |
743 | } | |
744 | ||
745 | /* record settings */ | |
746 | win->w[plane].xpos = xpos; | |
747 | win->w[plane].ypos = ypos; | |
748 | ||
749 | xsz -= 1; | |
750 | ysz -= 1; | |
751 | winctrl0 |= (xpos << 21); | |
752 | winctrl0 |= (ypos << 10); | |
753 | winctrl1 |= (xsz << 11); | |
754 | winctrl1 |= (ysz << 0); | |
755 | ||
756 | /* Disable the window while making changes, then restore WINEN */ | |
757 | winenable = lcd->winenable & (1 << plane); | |
2f73bfbe | 758 | wmb(); /* drain writebuffer */ |
f95ec3c6 RB |
759 | lcd->winenable &= ~(1 << plane); |
760 | lcd->window[plane].winctrl0 = winctrl0; | |
761 | lcd->window[plane].winctrl1 = winctrl1; | |
762 | lcd->window[plane].winbuf0 = | |
763 | lcd->window[plane].winbuf1 = fbdev->fb_phys; | |
764 | lcd->window[plane].winbufctrl = 0; /* select winbuf0 */ | |
765 | lcd->winenable |= winenable; | |
2f73bfbe | 766 | wmb(); /* drain writebuffer */ |
f95ec3c6 RB |
767 | |
768 | return 0; | |
769 | } | |
770 | ||
a9b71a8f ML |
771 | static void au1200_setpanel(struct panel_settings *newpanel, |
772 | struct au1200fb_platdata *pd) | |
f95ec3c6 RB |
773 | { |
774 | /* | |
775 | * Perform global setup/init of LCD controller | |
776 | */ | |
777 | uint32 winenable; | |
778 | ||
779 | /* Make sure all windows disabled */ | |
780 | winenable = lcd->winenable; | |
781 | lcd->winenable = 0; | |
2f73bfbe | 782 | wmb(); /* drain writebuffer */ |
f95ec3c6 RB |
783 | /* |
784 | * Ensure everything is disabled before reconfiguring | |
785 | */ | |
786 | if (lcd->screen & LCD_SCREEN_SEN) { | |
787 | /* Wait for vertical sync period */ | |
788 | lcd->intstatus = LCD_INT_SS; | |
2f73bfbe ML |
789 | while ((lcd->intstatus & LCD_INT_SS) == 0) |
790 | ; | |
f95ec3c6 RB |
791 | |
792 | lcd->screen &= ~LCD_SCREEN_SEN; /*disable the controller*/ | |
793 | ||
794 | do { | |
795 | lcd->intstatus = lcd->intstatus; /*clear interrupts*/ | |
2f73bfbe | 796 | wmb(); /* drain writebuffer */ |
f95ec3c6 RB |
797 | /*wait for controller to shut down*/ |
798 | } while ((lcd->intstatus & LCD_INT_SD) == 0); | |
799 | ||
800 | /* Call shutdown of current panel (if up) */ | |
801 | /* this must occur last, because if an external clock is driving | |
802 | the controller, the clock cannot be turned off before first | |
803 | shutting down the controller. | |
804 | */ | |
a9b71a8f ML |
805 | if (pd->panel_shutdown) |
806 | pd->panel_shutdown(); | |
f95ec3c6 RB |
807 | } |
808 | ||
809 | /* Newpanel == NULL indicates a shutdown operation only */ | |
810 | if (newpanel == NULL) | |
811 | return; | |
812 | ||
813 | panel = newpanel; | |
814 | ||
815 | printk("Panel(%s), %dx%d\n", panel->name, panel->Xres, panel->Yres); | |
816 | ||
817 | /* | |
818 | * Setup clocking if internal LCD clock source (assumes sys_auxpll valid) | |
819 | */ | |
820 | if (!(panel->mode_clkcontrol & LCD_CLKCONTROL_EXT)) | |
821 | { | |
ecc2ea3b ML |
822 | struct clk *c = clk_get(NULL, "lcd_intclk"); |
823 | long r, pc = panel->lcdclk * 1000000; | |
824 | ||
825 | if (!IS_ERR(c)) { | |
826 | r = clk_round_rate(c, pc); | |
827 | if ((pc - r) < (pc / 10)) { /* 10% slack */ | |
828 | clk_set_rate(c, r); | |
829 | clk_prepare_enable(c); | |
830 | } | |
831 | clk_put(c); | |
832 | } | |
f95ec3c6 RB |
833 | } |
834 | ||
835 | /* | |
836 | * Configure panel timings | |
837 | */ | |
838 | lcd->screen = panel->mode_screen; | |
839 | lcd->horztiming = panel->mode_horztiming; | |
840 | lcd->verttiming = panel->mode_verttiming; | |
841 | lcd->clkcontrol = panel->mode_clkcontrol; | |
842 | lcd->pwmdiv = panel->mode_pwmdiv; | |
843 | lcd->pwmhi = panel->mode_pwmhi; | |
844 | lcd->outmask = panel->mode_outmask; | |
845 | lcd->fifoctrl = panel->mode_fifoctrl; | |
2f73bfbe | 846 | wmb(); /* drain writebuffer */ |
f95ec3c6 RB |
847 | |
848 | /* fixme: Check window settings to make sure still valid | |
849 | * for new geometry */ | |
850 | #if 0 | |
851 | au1200_setlocation(fbdev, 0, win->w[0].xpos, win->w[0].ypos); | |
852 | au1200_setlocation(fbdev, 1, win->w[1].xpos, win->w[1].ypos); | |
853 | au1200_setlocation(fbdev, 2, win->w[2].xpos, win->w[2].ypos); | |
854 | au1200_setlocation(fbdev, 3, win->w[3].xpos, win->w[3].ypos); | |
855 | #endif | |
856 | lcd->winenable = winenable; | |
857 | ||
858 | /* | |
859 | * Re-enable screen now that it is configured | |
860 | */ | |
861 | lcd->screen |= LCD_SCREEN_SEN; | |
2f73bfbe | 862 | wmb(); /* drain writebuffer */ |
f95ec3c6 RB |
863 | |
864 | /* Call init of panel */ | |
a9b71a8f ML |
865 | if (pd->panel_init) |
866 | pd->panel_init(); | |
f95ec3c6 RB |
867 | |
868 | /* FIX!!!! not appropriate on panel change!!! Global setup/init */ | |
869 | lcd->intenable = 0; | |
870 | lcd->intstatus = ~0; | |
871 | lcd->backcolor = win->mode_backcolor; | |
872 | ||
873 | /* Setup Color Key - FIX!!! */ | |
874 | lcd->colorkey = win->mode_colorkey; | |
875 | lcd->colorkeymsk = win->mode_colorkeymsk; | |
876 | ||
877 | /* Setup HWCursor - FIX!!! Need to support this eventually */ | |
878 | lcd->hwc.cursorctrl = 0; | |
879 | lcd->hwc.cursorpos = 0; | |
880 | lcd->hwc.cursorcolor0 = 0; | |
881 | lcd->hwc.cursorcolor1 = 0; | |
882 | lcd->hwc.cursorcolor2 = 0; | |
883 | lcd->hwc.cursorcolor3 = 0; | |
884 | ||
885 | ||
886 | #if 0 | |
887 | #define D(X) printk("%25s: %08X\n", #X, X) | |
888 | D(lcd->screen); | |
889 | D(lcd->horztiming); | |
890 | D(lcd->verttiming); | |
891 | D(lcd->clkcontrol); | |
892 | D(lcd->pwmdiv); | |
893 | D(lcd->pwmhi); | |
894 | D(lcd->outmask); | |
895 | D(lcd->fifoctrl); | |
896 | D(lcd->window[0].winctrl0); | |
897 | D(lcd->window[0].winctrl1); | |
898 | D(lcd->window[0].winctrl2); | |
899 | D(lcd->window[0].winbuf0); | |
900 | D(lcd->window[0].winbuf1); | |
901 | D(lcd->window[0].winbufctrl); | |
902 | D(lcd->window[1].winctrl0); | |
903 | D(lcd->window[1].winctrl1); | |
904 | D(lcd->window[1].winctrl2); | |
905 | D(lcd->window[1].winbuf0); | |
906 | D(lcd->window[1].winbuf1); | |
907 | D(lcd->window[1].winbufctrl); | |
908 | D(lcd->window[2].winctrl0); | |
909 | D(lcd->window[2].winctrl1); | |
910 | D(lcd->window[2].winctrl2); | |
911 | D(lcd->window[2].winbuf0); | |
912 | D(lcd->window[2].winbuf1); | |
913 | D(lcd->window[2].winbufctrl); | |
914 | D(lcd->window[3].winctrl0); | |
915 | D(lcd->window[3].winctrl1); | |
916 | D(lcd->window[3].winctrl2); | |
917 | D(lcd->window[3].winbuf0); | |
918 | D(lcd->window[3].winbuf1); | |
919 | D(lcd->window[3].winbufctrl); | |
920 | D(lcd->winenable); | |
921 | D(lcd->intenable); | |
922 | D(lcd->intstatus); | |
923 | D(lcd->backcolor); | |
924 | D(lcd->winenable); | |
925 | D(lcd->colorkey); | |
926 | D(lcd->colorkeymsk); | |
927 | D(lcd->hwc.cursorctrl); | |
928 | D(lcd->hwc.cursorpos); | |
929 | D(lcd->hwc.cursorcolor0); | |
930 | D(lcd->hwc.cursorcolor1); | |
931 | D(lcd->hwc.cursorcolor2); | |
932 | D(lcd->hwc.cursorcolor3); | |
933 | #endif | |
934 | } | |
935 | ||
936 | static void au1200_setmode(struct au1200fb_device *fbdev) | |
937 | { | |
938 | int plane = fbdev->plane; | |
939 | /* Window/plane setup */ | |
940 | lcd->window[plane].winctrl1 = ( 0 | |
941 | | LCD_WINCTRL1_PRI_N(plane) | |
942 | | win->w[plane].mode_winctrl1 /* FRM,CCO,PO,PIPE */ | |
943 | ) ; | |
944 | ||
945 | au1200_setlocation(fbdev, plane, win->w[plane].xpos, win->w[plane].ypos); | |
946 | ||
947 | lcd->window[plane].winctrl2 = ( 0 | |
948 | | LCD_WINCTRL2_CKMODE_00 | |
949 | | LCD_WINCTRL2_DBM | |
c329f606 | 950 | | LCD_WINCTRL2_BX_N(fbdev->fb_info->fix.line_length) |
f95ec3c6 RB |
951 | | LCD_WINCTRL2_SCX_1 |
952 | | LCD_WINCTRL2_SCY_1 | |
953 | ) ; | |
954 | lcd->winenable |= win->w[plane].mode_winenable; | |
2f73bfbe | 955 | wmb(); /* drain writebuffer */ |
f95ec3c6 RB |
956 | } |
957 | ||
958 | ||
959 | /* Inline helpers */ | |
960 | ||
961 | /*#define panel_is_dual(panel) ((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/ | |
962 | /*#define panel_is_active(panel)((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/ | |
963 | ||
964 | #define panel_is_color(panel) ((panel->mode_screen & LCD_SCREEN_PT) <= LCD_SCREEN_PT_CDSTN) | |
965 | ||
966 | /* Bitfields format supported by the controller. */ | |
967 | static struct fb_bitfield rgb_bitfields[][4] = { | |
968 | /* Red, Green, Blue, Transp */ | |
969 | [LCD_WINCTRL1_FRM_16BPP655 >> 25] = | |
970 | { { 10, 6, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } }, | |
971 | ||
972 | [LCD_WINCTRL1_FRM_16BPP565 >> 25] = | |
973 | { { 11, 5, 0 }, { 5, 6, 0 }, { 0, 5, 0 }, { 0, 0, 0 } }, | |
974 | ||
975 | [LCD_WINCTRL1_FRM_16BPP556 >> 25] = | |
976 | { { 11, 5, 0 }, { 6, 5, 0 }, { 0, 6, 0 }, { 0, 0, 0 } }, | |
977 | ||
978 | [LCD_WINCTRL1_FRM_16BPPI1555 >> 25] = | |
979 | { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } }, | |
980 | ||
981 | [LCD_WINCTRL1_FRM_16BPPI5551 >> 25] = | |
982 | { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 0, 0 } }, | |
983 | ||
984 | [LCD_WINCTRL1_FRM_16BPPA1555 >> 25] = | |
985 | { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 15, 1, 0 } }, | |
986 | ||
987 | [LCD_WINCTRL1_FRM_16BPPA5551 >> 25] = | |
988 | { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 1, 0 } }, | |
989 | ||
990 | [LCD_WINCTRL1_FRM_24BPP >> 25] = | |
991 | { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 0, 0, 0 } }, | |
992 | ||
993 | [LCD_WINCTRL1_FRM_32BPP >> 25] = | |
994 | { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 24, 0, 0 } }, | |
995 | }; | |
996 | ||
997 | /*-------------------------------------------------------------------------*/ | |
998 | ||
999 | /* Helpers */ | |
1000 | ||
1001 | static void au1200fb_update_fbinfo(struct fb_info *fbi) | |
1002 | { | |
1003 | /* FIX!!!! This also needs to take the window pixel format into account!!! */ | |
1004 | ||
1005 | /* Update var-dependent FB info */ | |
1006 | if (panel_is_color(panel)) { | |
1007 | if (fbi->var.bits_per_pixel <= 8) { | |
1008 | /* palettized */ | |
1009 | fbi->fix.visual = FB_VISUAL_PSEUDOCOLOR; | |
1010 | fbi->fix.line_length = fbi->var.xres_virtual / | |
1011 | (8/fbi->var.bits_per_pixel); | |
1012 | } else { | |
1013 | /* non-palettized */ | |
1014 | fbi->fix.visual = FB_VISUAL_TRUECOLOR; | |
1015 | fbi->fix.line_length = fbi->var.xres_virtual * (fbi->var.bits_per_pixel / 8); | |
1016 | } | |
1017 | } else { | |
1018 | /* mono FIX!!! mono 8 and 4 bits */ | |
1019 | fbi->fix.visual = FB_VISUAL_MONO10; | |
1020 | fbi->fix.line_length = fbi->var.xres_virtual / 8; | |
1021 | } | |
1022 | ||
1023 | fbi->screen_size = fbi->fix.line_length * fbi->var.yres_virtual; | |
1024 | print_dbg("line length: %d\n", fbi->fix.line_length); | |
1025 | print_dbg("bits_per_pixel: %d\n", fbi->var.bits_per_pixel); | |
1026 | } | |
1027 | ||
1028 | /*-------------------------------------------------------------------------*/ | |
1029 | ||
1030 | /* AU1200 framebuffer driver */ | |
1031 | ||
1032 | /* fb_check_var | |
1033 | * Validate var settings with hardware restrictions and modify it if necessary | |
1034 | */ | |
1035 | static int au1200fb_fb_check_var(struct fb_var_screeninfo *var, | |
1036 | struct fb_info *fbi) | |
1037 | { | |
c329f606 | 1038 | struct au1200fb_device *fbdev = fbi->par; |
f95ec3c6 RB |
1039 | u32 pixclock; |
1040 | int screen_size, plane; | |
1041 | ||
1042 | plane = fbdev->plane; | |
1043 | ||
1044 | /* Make sure that the mode respect all LCD controller and | |
1045 | * panel restrictions. */ | |
1046 | var->xres = win->w[plane].xres; | |
1047 | var->yres = win->w[plane].yres; | |
1048 | ||
1049 | /* No need for virtual resolution support */ | |
1050 | var->xres_virtual = var->xres; | |
1051 | var->yres_virtual = var->yres; | |
1052 | ||
1053 | var->bits_per_pixel = winbpp(win->w[plane].mode_winctrl1); | |
1054 | ||
1055 | screen_size = var->xres_virtual * var->yres_virtual; | |
1056 | if (var->bits_per_pixel > 8) screen_size *= (var->bits_per_pixel / 8); | |
1057 | else screen_size /= (8/var->bits_per_pixel); | |
1058 | ||
1059 | if (fbdev->fb_len < screen_size) | |
1060 | return -EINVAL; /* Virtual screen is to big, abort */ | |
1061 | ||
1062 | /* FIX!!!! what are the implicaitons of ignoring this for windows ??? */ | |
1063 | /* The max LCD clock is fixed to 48MHz (value of AUX_CLK). The pixel | |
1064 | * clock can only be obtain by dividing this value by an even integer. | |
1065 | * Fallback to a slower pixel clock if necessary. */ | |
1066 | pixclock = max((u32)(PICOS2KHZ(var->pixclock) * 1000), fbi->monspecs.dclkmin); | |
732eacc0 | 1067 | pixclock = min3(pixclock, fbi->monspecs.dclkmax, (u32)AU1200_LCD_MAX_CLK/2); |
f95ec3c6 RB |
1068 | |
1069 | if (AU1200_LCD_MAX_CLK % pixclock) { | |
1070 | int diff = AU1200_LCD_MAX_CLK % pixclock; | |
1071 | pixclock -= diff; | |
1072 | } | |
1073 | ||
1074 | var->pixclock = KHZ2PICOS(pixclock/1000); | |
1075 | #if 0 | |
1076 | if (!panel_is_active(panel)) { | |
1077 | int pcd = AU1200_LCD_MAX_CLK / (pixclock * 2) - 1; | |
1078 | ||
1079 | if (!panel_is_color(panel) | |
1080 | && (panel->control_base & LCD_CONTROL_MPI) && (pcd < 3)) { | |
1081 | /* STN 8bit mono panel support is up to 6MHz pixclock */ | |
1082 | var->pixclock = KHZ2PICOS(6000); | |
1083 | } else if (!pcd) { | |
1084 | /* Other STN panel support is up to 12MHz */ | |
1085 | var->pixclock = KHZ2PICOS(12000); | |
1086 | } | |
1087 | } | |
1088 | #endif | |
1089 | /* Set bitfield accordingly */ | |
1090 | switch (var->bits_per_pixel) { | |
1091 | case 16: | |
1092 | { | |
1093 | /* 16bpp True color. | |
1094 | * These must be set to MATCH WINCTRL[FORM] */ | |
1095 | int idx; | |
1096 | idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25; | |
1097 | var->red = rgb_bitfields[idx][0]; | |
1098 | var->green = rgb_bitfields[idx][1]; | |
1099 | var->blue = rgb_bitfields[idx][2]; | |
1100 | var->transp = rgb_bitfields[idx][3]; | |
1101 | break; | |
1102 | } | |
1103 | ||
1104 | case 32: | |
1105 | { | |
1106 | /* 32bpp True color. | |
1107 | * These must be set to MATCH WINCTRL[FORM] */ | |
1108 | int idx; | |
1109 | idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25; | |
1110 | var->red = rgb_bitfields[idx][0]; | |
1111 | var->green = rgb_bitfields[idx][1]; | |
1112 | var->blue = rgb_bitfields[idx][2]; | |
1113 | var->transp = rgb_bitfields[idx][3]; | |
1114 | break; | |
1115 | } | |
1116 | default: | |
1117 | print_dbg("Unsupported depth %dbpp", var->bits_per_pixel); | |
1118 | return -EINVAL; | |
1119 | } | |
1120 | ||
1121 | return 0; | |
1122 | } | |
1123 | ||
1124 | /* fb_set_par | |
1125 | * Set hardware with var settings. This will enable the controller with a | |
1126 | * specific mode, normally validated with the fb_check_var method | |
1127 | */ | |
1128 | static int au1200fb_fb_set_par(struct fb_info *fbi) | |
1129 | { | |
c329f606 | 1130 | struct au1200fb_device *fbdev = fbi->par; |
f95ec3c6 RB |
1131 | |
1132 | au1200fb_update_fbinfo(fbi); | |
1133 | au1200_setmode(fbdev); | |
1134 | ||
1135 | return 0; | |
1136 | } | |
1137 | ||
1138 | /* fb_setcolreg | |
1139 | * Set color in LCD palette. | |
1140 | */ | |
1141 | static int au1200fb_fb_setcolreg(unsigned regno, unsigned red, unsigned green, | |
1142 | unsigned blue, unsigned transp, struct fb_info *fbi) | |
1143 | { | |
1144 | volatile u32 *palette = lcd->palette; | |
1145 | u32 value; | |
1146 | ||
1147 | if (regno > (AU1200_LCD_NBR_PALETTE_ENTRIES - 1)) | |
1148 | return -EINVAL; | |
1149 | ||
1150 | if (fbi->var.grayscale) { | |
1151 | /* Convert color to grayscale */ | |
1152 | red = green = blue = | |
1153 | (19595 * red + 38470 * green + 7471 * blue) >> 16; | |
1154 | } | |
1155 | ||
1156 | if (fbi->fix.visual == FB_VISUAL_TRUECOLOR) { | |
1157 | /* Place color in the pseudopalette */ | |
1158 | if (regno > 16) | |
1159 | return -EINVAL; | |
1160 | ||
1161 | palette = (u32*) fbi->pseudo_palette; | |
1162 | ||
1163 | red >>= (16 - fbi->var.red.length); | |
1164 | green >>= (16 - fbi->var.green.length); | |
1165 | blue >>= (16 - fbi->var.blue.length); | |
1166 | ||
1167 | value = (red << fbi->var.red.offset) | | |
1168 | (green << fbi->var.green.offset)| | |
1169 | (blue << fbi->var.blue.offset); | |
1170 | value &= 0xFFFF; | |
1171 | ||
1172 | } else if (1 /*FIX!!! panel_is_active(fbdev->panel)*/) { | |
1173 | /* COLOR TFT PALLETTIZED (use RGB 565) */ | |
1174 | value = (red & 0xF800)|((green >> 5) & | |
1175 | 0x07E0)|((blue >> 11) & 0x001F); | |
1176 | value &= 0xFFFF; | |
1177 | ||
1178 | } else if (0 /*panel_is_color(fbdev->panel)*/) { | |
1179 | /* COLOR STN MODE */ | |
1180 | value = 0x1234; | |
1181 | value &= 0xFFF; | |
1182 | } else { | |
1183 | /* MONOCHROME MODE */ | |
1184 | value = (green >> 12) & 0x000F; | |
1185 | value &= 0xF; | |
1186 | } | |
1187 | ||
1188 | palette[regno] = value; | |
1189 | ||
1190 | return 0; | |
1191 | } | |
1192 | ||
1193 | /* fb_blank | |
1194 | * Blank the screen. Depending on the mode, the screen will be | |
1195 | * activated with the backlight color, or desactivated | |
1196 | */ | |
1197 | static int au1200fb_fb_blank(int blank_mode, struct fb_info *fbi) | |
1198 | { | |
a9b71a8f ML |
1199 | struct au1200fb_device *fbdev = fbi->par; |
1200 | ||
f95ec3c6 RB |
1201 | /* Short-circuit screen blanking */ |
1202 | if (noblanking) | |
1203 | return 0; | |
1204 | ||
1205 | switch (blank_mode) { | |
1206 | ||
1207 | case FB_BLANK_UNBLANK: | |
1208 | case FB_BLANK_NORMAL: | |
1209 | /* printk("turn on panel\n"); */ | |
a9b71a8f | 1210 | au1200_setpanel(panel, fbdev->pd); |
f95ec3c6 RB |
1211 | break; |
1212 | case FB_BLANK_VSYNC_SUSPEND: | |
1213 | case FB_BLANK_HSYNC_SUSPEND: | |
1214 | case FB_BLANK_POWERDOWN: | |
1215 | /* printk("turn off panel\n"); */ | |
a9b71a8f | 1216 | au1200_setpanel(NULL, fbdev->pd); |
f95ec3c6 RB |
1217 | break; |
1218 | default: | |
1219 | break; | |
1220 | ||
1221 | } | |
1222 | ||
1223 | /* FB_BLANK_NORMAL is a soft blank */ | |
1224 | return (blank_mode == FB_BLANK_NORMAL) ? -EINVAL : 0; | |
1225 | } | |
1226 | ||
1227 | /* fb_mmap | |
1228 | * Map video memory in user space. We don't use the generic fb_mmap | |
1229 | * method mainly to allow the use of the TLB streaming flag (CCA=6) | |
1230 | */ | |
1231 | static int au1200fb_fb_mmap(struct fb_info *info, struct vm_area_struct *vma) | |
f95ec3c6 | 1232 | { |
c329f606 | 1233 | struct au1200fb_device *fbdev = info->par; |
f95ec3c6 | 1234 | |
f95ec3c6 RB |
1235 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); |
1236 | pgprot_val(vma->vm_page_prot) |= _CACHE_MASK; /* CCA=7 */ | |
1237 | ||
7314e613 | 1238 | return vm_iomap_memory(vma, fbdev->fb_phys, fbdev->fb_len); |
f95ec3c6 RB |
1239 | } |
1240 | ||
1241 | static void set_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata) | |
1242 | { | |
1243 | ||
1244 | unsigned int hi1, divider; | |
1245 | ||
1246 | /* SCREEN_SIZE: user cannot reset size, must switch panel choice */ | |
1247 | ||
1248 | if (pdata->flags & SCREEN_BACKCOLOR) | |
1249 | lcd->backcolor = pdata->backcolor; | |
1250 | ||
1251 | if (pdata->flags & SCREEN_BRIGHTNESS) { | |
1252 | ||
1253 | // limit brightness pwm duty to >= 30/1600 | |
1254 | if (pdata->brightness < 30) { | |
1255 | pdata->brightness = 30; | |
1256 | } | |
1257 | divider = (lcd->pwmdiv & 0x3FFFF) + 1; | |
f95ec3c6 RB |
1258 | hi1 = (((pdata->brightness & 0xFF)+1) * divider >> 8); |
1259 | lcd->pwmhi &= 0xFFFF; | |
1260 | lcd->pwmhi |= (hi1 << 16); | |
1261 | } | |
1262 | ||
1263 | if (pdata->flags & SCREEN_COLORKEY) | |
1264 | lcd->colorkey = pdata->colorkey; | |
1265 | ||
1266 | if (pdata->flags & SCREEN_MASK) | |
1267 | lcd->colorkeymsk = pdata->mask; | |
2f73bfbe | 1268 | wmb(); /* drain writebuffer */ |
f95ec3c6 RB |
1269 | } |
1270 | ||
1271 | static void get_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata) | |
1272 | { | |
1273 | unsigned int hi1, divider; | |
1274 | ||
1275 | pdata->xsize = ((lcd->screen & LCD_SCREEN_SX) >> 19) + 1; | |
1276 | pdata->ysize = ((lcd->screen & LCD_SCREEN_SY) >> 8) + 1; | |
1277 | ||
1278 | pdata->backcolor = lcd->backcolor; | |
1279 | pdata->colorkey = lcd->colorkey; | |
1280 | pdata->mask = lcd->colorkeymsk; | |
1281 | ||
1282 | // brightness | |
1283 | hi1 = (lcd->pwmhi >> 16) + 1; | |
1284 | divider = (lcd->pwmdiv & 0x3FFFF) + 1; | |
1285 | pdata->brightness = ((hi1 << 8) / divider) - 1; | |
2f73bfbe | 1286 | wmb(); /* drain writebuffer */ |
f95ec3c6 RB |
1287 | } |
1288 | ||
1289 | static void set_window(unsigned int plane, | |
1290 | struct au1200_lcd_window_regs_t *pdata) | |
1291 | { | |
1292 | unsigned int val, bpp; | |
1293 | ||
1294 | /* Window control register 0 */ | |
1295 | if (pdata->flags & WIN_POSITION) { | |
1296 | val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_OX | | |
1297 | LCD_WINCTRL0_OY); | |
1298 | val |= ((pdata->xpos << 21) & LCD_WINCTRL0_OX); | |
1299 | val |= ((pdata->ypos << 10) & LCD_WINCTRL0_OY); | |
1300 | lcd->window[plane].winctrl0 = val; | |
1301 | } | |
1302 | if (pdata->flags & WIN_ALPHA_COLOR) { | |
1303 | val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_A); | |
1304 | val |= ((pdata->alpha_color << 2) & LCD_WINCTRL0_A); | |
1305 | lcd->window[plane].winctrl0 = val; | |
1306 | } | |
1307 | if (pdata->flags & WIN_ALPHA_MODE) { | |
1308 | val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_AEN); | |
1309 | val |= ((pdata->alpha_mode << 1) & LCD_WINCTRL0_AEN); | |
1310 | lcd->window[plane].winctrl0 = val; | |
1311 | } | |
1312 | ||
1313 | /* Window control register 1 */ | |
1314 | if (pdata->flags & WIN_PRIORITY) { | |
1315 | val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PRI); | |
1316 | val |= ((pdata->priority << 30) & LCD_WINCTRL1_PRI); | |
1317 | lcd->window[plane].winctrl1 = val; | |
1318 | } | |
1319 | if (pdata->flags & WIN_CHANNEL) { | |
1320 | val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PIPE); | |
1321 | val |= ((pdata->channel << 29) & LCD_WINCTRL1_PIPE); | |
1322 | lcd->window[plane].winctrl1 = val; | |
1323 | } | |
1324 | if (pdata->flags & WIN_BUFFER_FORMAT) { | |
1325 | val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_FRM); | |
1326 | val |= ((pdata->buffer_format << 25) & LCD_WINCTRL1_FRM); | |
1327 | lcd->window[plane].winctrl1 = val; | |
1328 | } | |
1329 | if (pdata->flags & WIN_COLOR_ORDER) { | |
1330 | val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_CCO); | |
1331 | val |= ((pdata->color_order << 24) & LCD_WINCTRL1_CCO); | |
1332 | lcd->window[plane].winctrl1 = val; | |
1333 | } | |
1334 | if (pdata->flags & WIN_PIXEL_ORDER) { | |
1335 | val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PO); | |
1336 | val |= ((pdata->pixel_order << 22) & LCD_WINCTRL1_PO); | |
1337 | lcd->window[plane].winctrl1 = val; | |
1338 | } | |
1339 | if (pdata->flags & WIN_SIZE) { | |
1340 | val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_SZX | | |
1341 | LCD_WINCTRL1_SZY); | |
1342 | val |= (((pdata->xsize << 11) - 1) & LCD_WINCTRL1_SZX); | |
1343 | val |= (((pdata->ysize) - 1) & LCD_WINCTRL1_SZY); | |
1344 | lcd->window[plane].winctrl1 = val; | |
1345 | /* program buffer line width */ | |
1346 | bpp = winbpp(val) / 8; | |
1347 | val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_BX); | |
1348 | val |= (((pdata->xsize * bpp) << 8) & LCD_WINCTRL2_BX); | |
1349 | lcd->window[plane].winctrl2 = val; | |
1350 | } | |
1351 | ||
1352 | /* Window control register 2 */ | |
1353 | if (pdata->flags & WIN_COLORKEY_MODE) { | |
1354 | val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_CKMODE); | |
1355 | val |= ((pdata->colorkey_mode << 24) & LCD_WINCTRL2_CKMODE); | |
1356 | lcd->window[plane].winctrl2 = val; | |
1357 | } | |
1358 | if (pdata->flags & WIN_DOUBLE_BUFFER_MODE) { | |
1359 | val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_DBM); | |
1360 | val |= ((pdata->double_buffer_mode << 23) & LCD_WINCTRL2_DBM); | |
1361 | lcd->window[plane].winctrl2 = val; | |
1362 | } | |
1363 | if (pdata->flags & WIN_RAM_ARRAY_MODE) { | |
1364 | val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_RAM); | |
1365 | val |= ((pdata->ram_array_mode << 21) & LCD_WINCTRL2_RAM); | |
1366 | lcd->window[plane].winctrl2 = val; | |
1367 | } | |
1368 | ||
1369 | /* Buffer line width programmed with WIN_SIZE */ | |
1370 | ||
1371 | if (pdata->flags & WIN_BUFFER_SCALE) { | |
1372 | val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_SCX | | |
1373 | LCD_WINCTRL2_SCY); | |
1374 | val |= ((pdata->xsize << 11) & LCD_WINCTRL2_SCX); | |
1375 | val |= ((pdata->ysize) & LCD_WINCTRL2_SCY); | |
1376 | lcd->window[plane].winctrl2 = val; | |
1377 | } | |
1378 | ||
1379 | if (pdata->flags & WIN_ENABLE) { | |
1380 | val = lcd->winenable; | |
1381 | val &= ~(1<<plane); | |
1382 | val |= (pdata->enable & 1) << plane; | |
1383 | lcd->winenable = val; | |
1384 | } | |
2f73bfbe | 1385 | wmb(); /* drain writebuffer */ |
f95ec3c6 RB |
1386 | } |
1387 | ||
1388 | static void get_window(unsigned int plane, | |
1389 | struct au1200_lcd_window_regs_t *pdata) | |
1390 | { | |
1391 | /* Window control register 0 */ | |
1392 | pdata->xpos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OX) >> 21; | |
1393 | pdata->ypos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OY) >> 10; | |
1394 | pdata->alpha_color = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_A) >> 2; | |
1395 | pdata->alpha_mode = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_AEN) >> 1; | |
1396 | ||
1397 | /* Window control register 1 */ | |
1398 | pdata->priority = (lcd->window[plane].winctrl1& LCD_WINCTRL1_PRI) >> 30; | |
1399 | pdata->channel = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PIPE) >> 29; | |
1400 | pdata->buffer_format = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_FRM) >> 25; | |
1401 | pdata->color_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_CCO) >> 24; | |
1402 | pdata->pixel_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PO) >> 22; | |
1403 | pdata->xsize = ((lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZX) >> 11) + 1; | |
1404 | pdata->ysize = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZY) + 1; | |
1405 | ||
1406 | /* Window control register 2 */ | |
1407 | pdata->colorkey_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_CKMODE) >> 24; | |
1408 | pdata->double_buffer_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_DBM) >> 23; | |
1409 | pdata->ram_array_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_RAM) >> 21; | |
1410 | ||
1411 | pdata->enable = (lcd->winenable >> plane) & 1; | |
2f73bfbe | 1412 | wmb(); /* drain writebuffer */ |
f95ec3c6 RB |
1413 | } |
1414 | ||
1415 | static int au1200fb_ioctl(struct fb_info *info, unsigned int cmd, | |
1416 | unsigned long arg) | |
1417 | { | |
a9b71a8f | 1418 | struct au1200fb_device *fbdev = info->par; |
f95ec3c6 RB |
1419 | int plane; |
1420 | int val; | |
1421 | ||
f95ec3c6 RB |
1422 | plane = fbinfo2index(info); |
1423 | print_dbg("au1200fb: ioctl %d on plane %d\n", cmd, plane); | |
1424 | ||
1425 | if (cmd == AU1200_LCD_FB_IOCTL) { | |
1426 | struct au1200_lcd_iodata_t iodata; | |
1427 | ||
1428 | if (copy_from_user(&iodata, (void __user *) arg, sizeof(iodata))) | |
1429 | return -EFAULT; | |
1430 | ||
1431 | print_dbg("FB IOCTL called\n"); | |
1432 | ||
1433 | switch (iodata.subcmd) { | |
1434 | case AU1200_LCD_SET_SCREEN: | |
1435 | print_dbg("AU1200_LCD_SET_SCREEN\n"); | |
1436 | set_global(cmd, &iodata.global); | |
1437 | break; | |
1438 | ||
1439 | case AU1200_LCD_GET_SCREEN: | |
1440 | print_dbg("AU1200_LCD_GET_SCREEN\n"); | |
1441 | get_global(cmd, &iodata.global); | |
1442 | break; | |
1443 | ||
1444 | case AU1200_LCD_SET_WINDOW: | |
1445 | print_dbg("AU1200_LCD_SET_WINDOW\n"); | |
1446 | set_window(plane, &iodata.window); | |
1447 | break; | |
1448 | ||
1449 | case AU1200_LCD_GET_WINDOW: | |
1450 | print_dbg("AU1200_LCD_GET_WINDOW\n"); | |
1451 | get_window(plane, &iodata.window); | |
1452 | break; | |
1453 | ||
1454 | case AU1200_LCD_SET_PANEL: | |
1455 | print_dbg("AU1200_LCD_SET_PANEL\n"); | |
1456 | if ((iodata.global.panel_choice >= 0) && | |
1457 | (iodata.global.panel_choice < | |
1458 | NUM_PANELS)) | |
1459 | { | |
1460 | struct panel_settings *newpanel; | |
1461 | panel_index = iodata.global.panel_choice; | |
1462 | newpanel = &known_lcd_panels[panel_index]; | |
a9b71a8f | 1463 | au1200_setpanel(newpanel, fbdev->pd); |
f95ec3c6 RB |
1464 | } |
1465 | break; | |
1466 | ||
1467 | case AU1200_LCD_GET_PANEL: | |
1468 | print_dbg("AU1200_LCD_GET_PANEL\n"); | |
1469 | iodata.global.panel_choice = panel_index; | |
1470 | break; | |
1471 | ||
1472 | default: | |
1473 | return -EINVAL; | |
1474 | } | |
1475 | ||
1476 | val = copy_to_user((void __user *) arg, &iodata, sizeof(iodata)); | |
1477 | if (val) { | |
1478 | print_dbg("error: could not copy %d bytes\n", val); | |
1479 | return -EFAULT; | |
1480 | } | |
1481 | } | |
1482 | ||
1483 | return 0; | |
1484 | } | |
1485 | ||
1486 | ||
1487 | static struct fb_ops au1200fb_fb_ops = { | |
1488 | .owner = THIS_MODULE, | |
1489 | .fb_check_var = au1200fb_fb_check_var, | |
1490 | .fb_set_par = au1200fb_fb_set_par, | |
1491 | .fb_setcolreg = au1200fb_fb_setcolreg, | |
1492 | .fb_blank = au1200fb_fb_blank, | |
4ee58461 ML |
1493 | .fb_fillrect = sys_fillrect, |
1494 | .fb_copyarea = sys_copyarea, | |
1495 | .fb_imageblit = sys_imageblit, | |
1496 | .fb_read = fb_sys_read, | |
1497 | .fb_write = fb_sys_write, | |
f95ec3c6 RB |
1498 | .fb_sync = NULL, |
1499 | .fb_ioctl = au1200fb_ioctl, | |
1500 | .fb_mmap = au1200fb_fb_mmap, | |
1501 | }; | |
1502 | ||
1503 | /*-------------------------------------------------------------------------*/ | |
1504 | ||
7d12e780 | 1505 | static irqreturn_t au1200fb_handle_irq(int irq, void* dev_id) |
f95ec3c6 RB |
1506 | { |
1507 | /* Nothing to do for now, just clear any pending interrupt */ | |
1508 | lcd->intstatus = lcd->intstatus; | |
2f73bfbe | 1509 | wmb(); /* drain writebuffer */ |
f95ec3c6 RB |
1510 | |
1511 | return IRQ_HANDLED; | |
1512 | } | |
1513 | ||
1514 | /*-------------------------------------------------------------------------*/ | |
1515 | ||
1516 | /* AU1200 LCD device probe helpers */ | |
1517 | ||
1518 | static int au1200fb_init_fbinfo(struct au1200fb_device *fbdev) | |
1519 | { | |
c329f606 | 1520 | struct fb_info *fbi = fbdev->fb_info; |
f95ec3c6 RB |
1521 | int bpp; |
1522 | ||
f95ec3c6 RB |
1523 | fbi->fbops = &au1200fb_fb_ops; |
1524 | ||
1525 | bpp = winbpp(win->w[fbdev->plane].mode_winctrl1); | |
1526 | ||
1527 | /* Copy monitor specs from panel data */ | |
1528 | /* fixme: we're setting up LCD controller windows, so these dont give a | |
1529 | damn as to what the monitor specs are (the panel itself does, but that | |
25985edc | 1530 | isn't done here...so maybe need a generic catchall monitor setting??? */ |
f95ec3c6 RB |
1531 | memcpy(&fbi->monspecs, &panel->monspecs, sizeof(struct fb_monspecs)); |
1532 | ||
1533 | /* We first try the user mode passed in argument. If that failed, | |
1534 | * or if no one has been specified, we default to the first mode of the | |
1535 | * panel list. Note that after this call, var data will be set */ | |
1536 | if (!fb_find_mode(&fbi->var, | |
1537 | fbi, | |
1538 | NULL, /* drv_info.opt_mode, */ | |
1539 | fbi->monspecs.modedb, | |
1540 | fbi->monspecs.modedb_len, | |
1541 | fbi->monspecs.modedb, | |
1542 | bpp)) { | |
1543 | ||
1544 | print_err("Cannot find valid mode for panel %s", panel->name); | |
1545 | return -EFAULT; | |
1546 | } | |
1547 | ||
dd00cc48 | 1548 | fbi->pseudo_palette = kcalloc(16, sizeof(u32), GFP_KERNEL); |
f95ec3c6 RB |
1549 | if (!fbi->pseudo_palette) { |
1550 | return -ENOMEM; | |
1551 | } | |
f95ec3c6 RB |
1552 | |
1553 | if (fb_alloc_cmap(&fbi->cmap, AU1200_LCD_NBR_PALETTE_ENTRIES, 0) < 0) { | |
1554 | print_err("Fail to allocate colormap (%d entries)", | |
1555 | AU1200_LCD_NBR_PALETTE_ENTRIES); | |
1556 | kfree(fbi->pseudo_palette); | |
1557 | return -EFAULT; | |
1558 | } | |
1559 | ||
1560 | strncpy(fbi->fix.id, "AU1200", sizeof(fbi->fix.id)); | |
1561 | fbi->fix.smem_start = fbdev->fb_phys; | |
1562 | fbi->fix.smem_len = fbdev->fb_len; | |
1563 | fbi->fix.type = FB_TYPE_PACKED_PIXELS; | |
1564 | fbi->fix.xpanstep = 0; | |
1565 | fbi->fix.ypanstep = 0; | |
1566 | fbi->fix.mmio_start = 0; | |
1567 | fbi->fix.mmio_len = 0; | |
1568 | fbi->fix.accel = FB_ACCEL_NONE; | |
1569 | ||
1570 | fbi->screen_base = (char __iomem *) fbdev->fb_mem; | |
1571 | ||
1572 | au1200fb_update_fbinfo(fbi); | |
1573 | ||
1574 | return 0; | |
1575 | } | |
1576 | ||
1577 | /*-------------------------------------------------------------------------*/ | |
1578 | ||
f95ec3c6 | 1579 | |
a9b71a8f ML |
1580 | static int au1200fb_setup(struct au1200fb_platdata *pd) |
1581 | { | |
1582 | char *options = NULL; | |
1583 | char *this_opt, *endptr; | |
1584 | int num_panels = ARRAY_SIZE(known_lcd_panels); | |
1585 | int panel_idx = -1; | |
1586 | ||
1587 | fb_get_options(DRIVER_NAME, &options); | |
1588 | ||
1589 | if (!options) | |
1590 | goto out; | |
1591 | ||
1592 | while ((this_opt = strsep(&options, ",")) != NULL) { | |
1593 | /* Panel option - can be panel name, | |
1594 | * "bs" for board-switch, or number/index */ | |
1595 | if (!strncmp(this_opt, "panel:", 6)) { | |
1596 | int i; | |
1597 | long int li; | |
1598 | char *endptr; | |
1599 | this_opt += 6; | |
1600 | /* First check for index, which allows | |
1601 | * to short circuit this mess */ | |
1602 | li = simple_strtol(this_opt, &endptr, 0); | |
1603 | if (*endptr == '\0') | |
1604 | panel_idx = (int)li; | |
1605 | else if (strcmp(this_opt, "bs") == 0) | |
1606 | panel_idx = pd->panel_index(); | |
1607 | else { | |
1608 | for (i = 0; i < num_panels; i++) { | |
1609 | if (!strcmp(this_opt, | |
1610 | known_lcd_panels[i].name)) { | |
1611 | panel_idx = i; | |
1612 | break; | |
1613 | } | |
1614 | } | |
1615 | } | |
1616 | if ((panel_idx < 0) || (panel_idx >= num_panels)) | |
1617 | print_warn("Panel %s not supported!", this_opt); | |
1618 | else | |
1619 | panel_index = panel_idx; | |
1620 | ||
1621 | } else if (strncmp(this_opt, "nohwcursor", 10) == 0) | |
1622 | nohwcursor = 1; | |
1623 | else if (strncmp(this_opt, "devices:", 8) == 0) { | |
1624 | this_opt += 8; | |
1625 | device_count = simple_strtol(this_opt, &endptr, 0); | |
1626 | if ((device_count < 0) || | |
1627 | (device_count > MAX_DEVICE_COUNT)) | |
1628 | device_count = MAX_DEVICE_COUNT; | |
1629 | } else if (strncmp(this_opt, "wincfg:", 7) == 0) { | |
1630 | this_opt += 7; | |
1631 | window_index = simple_strtol(this_opt, &endptr, 0); | |
1632 | if ((window_index < 0) || | |
1633 | (window_index >= ARRAY_SIZE(windows))) | |
1634 | window_index = DEFAULT_WINDOW_INDEX; | |
1635 | } else if (strncmp(this_opt, "off", 3) == 0) | |
1636 | return 1; | |
1637 | else | |
1638 | print_warn("Unsupported option \"%s\"", this_opt); | |
1639 | } | |
1640 | ||
1641 | out: | |
1642 | return 0; | |
1643 | } | |
1644 | ||
1645 | /* AU1200 LCD controller device driver */ | |
48c68c4f | 1646 | static int au1200fb_drv_probe(struct platform_device *dev) |
f95ec3c6 RB |
1647 | { |
1648 | struct au1200fb_device *fbdev; | |
a9b71a8f | 1649 | struct au1200fb_platdata *pd; |
c329f606 | 1650 | struct fb_info *fbi = NULL; |
f95ec3c6 | 1651 | unsigned long page; |
1630d85a | 1652 | int bpp, plane, ret, irq; |
f95ec3c6 | 1653 | |
a9b71a8f ML |
1654 | print_info("" DRIVER_DESC ""); |
1655 | ||
1656 | pd = dev->dev.platform_data; | |
1657 | if (!pd) | |
1658 | return -ENODEV; | |
1659 | ||
1660 | /* Setup driver with options */ | |
1661 | if (au1200fb_setup(pd)) | |
1662 | return -ENODEV; | |
1663 | ||
1664 | /* Point to the panel selected */ | |
1665 | panel = &known_lcd_panels[panel_index]; | |
1666 | win = &windows[window_index]; | |
1667 | ||
1668 | printk(DRIVER_NAME ": Panel %d %s\n", panel_index, panel->name); | |
1669 | printk(DRIVER_NAME ": Win %d %s\n", window_index, win->name); | |
1670 | ||
c329f606 ML |
1671 | /* shut gcc up */ |
1672 | ret = 0; | |
1673 | fbdev = NULL; | |
f95ec3c6 | 1674 | |
8be90b07 | 1675 | for (plane = 0; plane < device_count; ++plane) { |
f95ec3c6 RB |
1676 | bpp = winbpp(win->w[plane].mode_winctrl1); |
1677 | if (win->w[plane].xres == 0) | |
1678 | win->w[plane].xres = panel->Xres; | |
1679 | if (win->w[plane].yres == 0) | |
1680 | win->w[plane].yres = panel->Yres; | |
1681 | ||
c329f606 ML |
1682 | fbi = framebuffer_alloc(sizeof(struct au1200fb_device), |
1683 | &dev->dev); | |
1684 | if (!fbi) | |
1685 | goto failed; | |
1686 | ||
1687 | _au1200fb_infos[plane] = fbi; | |
1688 | fbdev = fbi->par; | |
1689 | fbdev->fb_info = fbi; | |
a9b71a8f | 1690 | fbdev->pd = pd; |
c329f606 | 1691 | |
f95ec3c6 RB |
1692 | fbdev->plane = plane; |
1693 | ||
1694 | /* Allocate the framebuffer to the maximum screen size */ | |
1695 | fbdev->fb_len = (win->w[plane].xres * win->w[plane].yres * bpp) / 8; | |
1696 | ||
93019734 | 1697 | fbdev->fb_mem = dmam_alloc_noncoherent(&dev->dev, |
f95ec3c6 RB |
1698 | PAGE_ALIGN(fbdev->fb_len), |
1699 | &fbdev->fb_phys, GFP_KERNEL); | |
1700 | if (!fbdev->fb_mem) { | |
1701 | print_err("fail to allocate frambuffer (size: %dK))", | |
1702 | fbdev->fb_len / 1024); | |
1703 | return -ENOMEM; | |
1704 | } | |
1705 | ||
1706 | /* | |
1707 | * Set page reserved so that mmap will work. This is necessary | |
1708 | * since we'll be remapping normal memory. | |
1709 | */ | |
1710 | for (page = (unsigned long)fbdev->fb_phys; | |
1711 | page < PAGE_ALIGN((unsigned long)fbdev->fb_phys + | |
1712 | fbdev->fb_len); | |
1713 | page += PAGE_SIZE) { | |
1714 | SetPageReserved(pfn_to_page(page >> PAGE_SHIFT)); /* LCD DMA is NOT coherent on Au1200 */ | |
1715 | } | |
1716 | print_dbg("Framebuffer memory map at %p", fbdev->fb_mem); | |
1717 | print_dbg("phys=0x%08x, size=%dK", fbdev->fb_phys, fbdev->fb_len / 1024); | |
1718 | ||
1719 | /* Init FB data */ | |
1720 | if ((ret = au1200fb_init_fbinfo(fbdev)) < 0) | |
1721 | goto failed; | |
1722 | ||
1723 | /* Register new framebuffer */ | |
c329f606 ML |
1724 | ret = register_framebuffer(fbi); |
1725 | if (ret < 0) { | |
f95ec3c6 RB |
1726 | print_err("cannot register new framebuffer"); |
1727 | goto failed; | |
1728 | } | |
1729 | ||
c329f606 | 1730 | au1200fb_fb_set_par(fbi); |
f95ec3c6 RB |
1731 | |
1732 | #if !defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_LOGO) | |
1733 | if (plane == 0) | |
c329f606 | 1734 | if (fb_prepare_logo(fbi, FB_ROTATE_UR)) { |
f95ec3c6 | 1735 | /* Start display and show logo on boot */ |
c329f606 ML |
1736 | fb_set_cmap(&fbi->cmap, fbi); |
1737 | fb_show_logo(fbi, FB_ROTATE_UR); | |
f95ec3c6 RB |
1738 | } |
1739 | #endif | |
1740 | } | |
1741 | ||
1742 | /* Now hook interrupt too */ | |
1630d85a ML |
1743 | irq = platform_get_irq(dev, 0); |
1744 | ret = request_irq(irq, au1200fb_handle_irq, | |
f8798ccb | 1745 | IRQF_SHARED, "lcd", (void *)dev); |
1630d85a | 1746 | if (ret) { |
f95ec3c6 | 1747 | print_err("fail to request interrupt line %d (err: %d)", |
1630d85a | 1748 | irq, ret); |
f95ec3c6 RB |
1749 | goto failed; |
1750 | } | |
1751 | ||
a9b71a8f ML |
1752 | platform_set_drvdata(dev, pd); |
1753 | ||
1754 | /* Kickstart the panel */ | |
1755 | au1200_setpanel(panel, pd); | |
1756 | ||
f95ec3c6 RB |
1757 | return 0; |
1758 | ||
1759 | failed: | |
1760 | /* NOTE: This only does the current plane/window that failed; others are still active */ | |
c329f606 ML |
1761 | if (fbi) { |
1762 | if (fbi->cmap.len != 0) | |
1763 | fb_dealloc_cmap(&fbi->cmap); | |
1764 | kfree(fbi->pseudo_palette); | |
1765 | } | |
f95ec3c6 RB |
1766 | if (plane == 0) |
1767 | free_irq(AU1200_LCD_INT, (void*)dev); | |
1768 | return ret; | |
1769 | } | |
1770 | ||
48c68c4f | 1771 | static int au1200fb_drv_remove(struct platform_device *dev) |
f95ec3c6 | 1772 | { |
a9b71a8f | 1773 | struct au1200fb_platdata *pd = platform_get_drvdata(dev); |
f95ec3c6 | 1774 | struct au1200fb_device *fbdev; |
c329f606 | 1775 | struct fb_info *fbi; |
f95ec3c6 RB |
1776 | int plane; |
1777 | ||
f95ec3c6 | 1778 | /* Turn off the panel */ |
a9b71a8f | 1779 | au1200_setpanel(NULL, pd); |
f95ec3c6 | 1780 | |
8be90b07 | 1781 | for (plane = 0; plane < device_count; ++plane) { |
c329f606 ML |
1782 | fbi = _au1200fb_infos[plane]; |
1783 | fbdev = fbi->par; | |
f95ec3c6 RB |
1784 | |
1785 | /* Clean up all probe data */ | |
c329f606 | 1786 | unregister_framebuffer(fbi); |
c329f606 ML |
1787 | if (fbi->cmap.len != 0) |
1788 | fb_dealloc_cmap(&fbi->cmap); | |
1789 | kfree(fbi->pseudo_palette); | |
1790 | ||
1791 | framebuffer_release(fbi); | |
1792 | _au1200fb_infos[plane] = NULL; | |
f95ec3c6 RB |
1793 | } |
1794 | ||
1630d85a | 1795 | free_irq(platform_get_irq(dev, 0), (void *)dev); |
f95ec3c6 RB |
1796 | |
1797 | return 0; | |
1798 | } | |
1799 | ||
1800 | #ifdef CONFIG_PM | |
98707fcc | 1801 | static int au1200fb_drv_suspend(struct device *dev) |
f95ec3c6 | 1802 | { |
a9b71a8f ML |
1803 | struct au1200fb_platdata *pd = dev_get_drvdata(dev); |
1804 | au1200_setpanel(NULL, pd); | |
98707fcc ML |
1805 | |
1806 | lcd->outmask = 0; | |
2f73bfbe | 1807 | wmb(); /* drain writebuffer */ |
98707fcc | 1808 | |
f95ec3c6 RB |
1809 | return 0; |
1810 | } | |
1811 | ||
98707fcc | 1812 | static int au1200fb_drv_resume(struct device *dev) |
f95ec3c6 | 1813 | { |
a9b71a8f | 1814 | struct au1200fb_platdata *pd = dev_get_drvdata(dev); |
98707fcc ML |
1815 | struct fb_info *fbi; |
1816 | int i; | |
1817 | ||
1818 | /* Kickstart the panel */ | |
a9b71a8f | 1819 | au1200_setpanel(panel, pd); |
98707fcc | 1820 | |
8be90b07 | 1821 | for (i = 0; i < device_count; i++) { |
98707fcc ML |
1822 | fbi = _au1200fb_infos[i]; |
1823 | au1200fb_fb_set_par(fbi); | |
1824 | } | |
1825 | ||
f95ec3c6 RB |
1826 | return 0; |
1827 | } | |
98707fcc ML |
1828 | |
1829 | static const struct dev_pm_ops au1200fb_pmops = { | |
1830 | .suspend = au1200fb_drv_suspend, | |
1831 | .resume = au1200fb_drv_resume, | |
1832 | .freeze = au1200fb_drv_suspend, | |
1833 | .thaw = au1200fb_drv_resume, | |
1834 | }; | |
1835 | ||
1836 | #define AU1200FB_PMOPS (&au1200fb_pmops) | |
1837 | ||
1838 | #else | |
1839 | #define AU1200FB_PMOPS NULL | |
f95ec3c6 RB |
1840 | #endif /* CONFIG_PM */ |
1841 | ||
7a192ec3 ML |
1842 | static struct platform_driver au1200fb_driver = { |
1843 | .driver = { | |
98707fcc | 1844 | .name = "au1200-lcd", |
98707fcc | 1845 | .pm = AU1200FB_PMOPS, |
7a192ec3 | 1846 | }, |
f95ec3c6 | 1847 | .probe = au1200fb_drv_probe, |
48c68c4f | 1848 | .remove = au1200fb_drv_remove, |
f95ec3c6 | 1849 | }; |
d07b3191 | 1850 | module_platform_driver(au1200fb_driver); |
f95ec3c6 RB |
1851 | |
1852 | MODULE_DESCRIPTION(DRIVER_DESC); | |
1853 | MODULE_LICENSE("GPL"); |