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GUI: Fix Tomato RAF theme for all builds. Compilation typo.
[tomato.git] / release / src-rt-6.x.4708 / linux / linux-2.6.36 / drivers / video / au1200fb.c
blobe2012f2af6a3d0f7a1925fd976a020a0713f3778
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
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
33 #include <linux/module.h>
34 #include <linux/platform_device.h>
35 #include <linux/kernel.h>
36 #include <linux/errno.h>
37 #include <linux/string.h>
38 #include <linux/mm.h>
39 #include <linux/fb.h>
40 #include <linux/init.h>
41 #include <linux/interrupt.h>
42 #include <linux/ctype.h>
43 #include <linux/dma-mapping.h>
44 #include <linux/slab.h>
45
46 #include <asm/mach-au1x00/au1000.h>
47 #include "au1200fb.h"
48
49 #ifdef CONFIG_PM
50 #include <asm/mach-au1x00/au1xxx_pm.h>
51 #endif
52
53 #ifndef CONFIG_FB_AU1200_DEVS
54 #define CONFIG_FB_AU1200_DEVS 4
55 #endif
56
57 #define DRIVER_NAME "au1200fb"
58 #define DRIVER_DESC "LCD controller driver for AU1200 processors"
59
60 #define DEBUG 1
61
62 #define print_err(f, arg...) printk(KERN_ERR DRIVER_NAME ": " f "\n", ## arg)
63 #define print_warn(f, arg...) printk(KERN_WARNING DRIVER_NAME ": " f "\n", ## arg)
64 #define print_info(f, arg...) printk(KERN_INFO DRIVER_NAME ": " f "\n", ## arg)
65
66 #if DEBUG
67 #define print_dbg(f, arg...) printk(KERN_DEBUG __FILE__ ": " f "\n", ## arg)
68 #else
69 #define print_dbg(f, arg...) do {} while (0)
70 #endif
71
72
73 #define AU1200_LCD_FB_IOCTL 0x46FF
74
75 #define AU1200_LCD_SET_SCREEN 1
76 #define AU1200_LCD_GET_SCREEN 2
77 #define AU1200_LCD_SET_WINDOW 3
78 #define AU1200_LCD_GET_WINDOW 4
79 #define AU1200_LCD_SET_PANEL 5
80 #define AU1200_LCD_GET_PANEL 6
81
82 #define SCREEN_SIZE (1<< 1)
83 #define SCREEN_BACKCOLOR (1<< 2)
84 #define SCREEN_BRIGHTNESS (1<< 3)
85 #define SCREEN_COLORKEY (1<< 4)
86 #define SCREEN_MASK (1<< 5)
87
88 struct au1200_lcd_global_regs_t {
89 unsigned int flags;
90 unsigned int xsize;
91 unsigned int ysize;
92 unsigned int backcolor;
93 unsigned int brightness;
94 unsigned int colorkey;
95 unsigned int mask;
96 unsigned int panel_choice;
97 char panel_desc[80];
98
99 };
100
101 #define WIN_POSITION (1<< 0)
102 #define WIN_ALPHA_COLOR (1<< 1)
103 #define WIN_ALPHA_MODE (1<< 2)
104 #define WIN_PRIORITY (1<< 3)
105 #define WIN_CHANNEL (1<< 4)
106 #define WIN_BUFFER_FORMAT (1<< 5)
107 #define WIN_COLOR_ORDER (1<< 6)
108 #define WIN_PIXEL_ORDER (1<< 7)
109 #define WIN_SIZE (1<< 8)
110 #define WIN_COLORKEY_MODE (1<< 9)
111 #define WIN_DOUBLE_BUFFER_MODE (1<< 10)
112 #define WIN_RAM_ARRAY_MODE (1<< 11)
113 #define WIN_BUFFER_SCALE (1<< 12)
114 #define WIN_ENABLE (1<< 13)
115
116 struct au1200_lcd_window_regs_t {
117 unsigned int flags;
118 unsigned int xpos;
119 unsigned int ypos;
120 unsigned int alpha_color;
121 unsigned int alpha_mode;
122 unsigned int priority;
123 unsigned int channel;
124 unsigned int buffer_format;
125 unsigned int color_order;
126 unsigned int pixel_order;
127 unsigned int xsize;
128 unsigned int ysize;
129 unsigned int colorkey_mode;
130 unsigned int double_buffer_mode;
131 unsigned int ram_array_mode;
132 unsigned int xscale;
133 unsigned int yscale;
134 unsigned int enable;
135 };
136
137
138 struct au1200_lcd_iodata_t {
139 unsigned int subcmd;
140 struct au1200_lcd_global_regs_t global;
141 struct au1200_lcd_window_regs_t window;
142 };
143
144 #if defined(__BIG_ENDIAN)
145 #define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_11
146 #else
147 #define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_00
148 #endif
149 #define LCD_CONTROL_DEFAULT_SBPPF LCD_CONTROL_SBPPF_565
150
151 /* Private, per-framebuffer management information (independent of the panel itself) */
152 struct au1200fb_device {
153 struct fb_info fb_info; /* FB driver info record */
154
155 int plane;
156 unsigned char* fb_mem; /* FrameBuffer memory map */
157 unsigned int fb_len;
158 dma_addr_t fb_phys;
159 };
160
161 static struct au1200fb_device _au1200fb_devices[CONFIG_FB_AU1200_DEVS];
162 /********************************************************************/
163
164 /* LCD controller restrictions */
165 #define AU1200_LCD_MAX_XRES 1280
166 #define AU1200_LCD_MAX_YRES 1024
167 #define AU1200_LCD_MAX_BPP 32
168 #define AU1200_LCD_MAX_CLK 96000000
169 #define AU1200_LCD_NBR_PALETTE_ENTRIES 256
170
171 /* Default number of visible screen buffer to allocate */
172 #define AU1200FB_NBR_VIDEO_BUFFERS 1
173
174 /********************************************************************/
175
176 static struct au1200_lcd *lcd = (struct au1200_lcd *) AU1200_LCD_ADDR;
177 static int window_index = 2; /* default is zero */
178 static int panel_index = 2; /* default is zero */
179 static struct window_settings *win;
180 static struct panel_settings *panel;
181 static int noblanking = 1;
182 static int nohwcursor = 0;
183
184 struct window_settings {
185 unsigned char name[64];
186 uint32 mode_backcolor;
187 uint32 mode_colorkey;
188 uint32 mode_colorkeymsk;
189 struct {
190 int xres;
191 int yres;
192 int xpos;
193 int ypos;
194 uint32 mode_winctrl1; /* winctrl1[FRM,CCO,PO,PIPE] */
195 uint32 mode_winenable;
196 } w[4];
197 };
198
199 #if defined(__BIG_ENDIAN)
200 #define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_00
201 #else
202 #define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_01
203 #endif
204
205 extern int board_au1200fb_panel_init (void);
206 extern int board_au1200fb_panel_shutdown (void);
207
208 #ifdef CONFIG_PM
209 int au1200fb_pm_callback(au1xxx_power_dev_t *dev,
210 au1xxx_request_t request, void *data);
211 au1xxx_power_dev_t *LCD_pm_dev;
212 #endif
213
214 /*
215 * Default window configurations
216 */
217 static struct window_settings windows[] = {
218 { /* Index 0 */
219 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
220 /* mode_backcolor */ 0x006600ff,
221 /* mode_colorkey,msk*/ 0, 0,
222 {
223 {
224 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
225 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
226 LCD_WINCTRL1_PO_16BPP,
227 /* mode_winenable*/ LCD_WINENABLE_WEN0,
228 },
229 {
230 /* xres, yres, xpos, ypos */ 100, 100, 100, 100,
231 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
232 LCD_WINCTRL1_PO_16BPP |
233 LCD_WINCTRL1_PIPE,
234 /* mode_winenable*/ LCD_WINENABLE_WEN1,
235 },
236 {
237 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
238 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
239 LCD_WINCTRL1_PO_16BPP,
240 /* mode_winenable*/ 0,
241 },
242 {
243 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
244 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
245 LCD_WINCTRL1_PO_16BPP |
246 LCD_WINCTRL1_PIPE,
247 /* mode_winenable*/ 0,
248 },
249 },
250 },
251
252 { /* Index 1 */
253 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
254 /* mode_backcolor */ 0x006600ff,
255 /* mode_colorkey,msk*/ 0, 0,
256 {
257 {
258 /* xres, yres, xpos, ypos */ 320, 240, 5, 5,
259 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_24BPP |
260 LCD_WINCTRL1_PO_00,
261 /* mode_winenable*/ LCD_WINENABLE_WEN0,
262 },
263 {
264 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
265 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565
266 | LCD_WINCTRL1_PO_16BPP,
267 /* mode_winenable*/ 0,
268 },
269 {
270 /* xres, yres, xpos, ypos */ 100, 100, 0, 0,
271 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
272 LCD_WINCTRL1_PO_16BPP |
273 LCD_WINCTRL1_PIPE,
274 /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/,
275 },
276 {
277 /* xres, yres, xpos, ypos */ 200, 25, 0, 0,
278 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
279 LCD_WINCTRL1_PO_16BPP |
280 LCD_WINCTRL1_PIPE,
281 /* mode_winenable*/ 0,
282 },
283 },
284 },
285 { /* Index 2 */
286 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
287 /* mode_backcolor */ 0x006600ff,
288 /* mode_colorkey,msk*/ 0, 0,
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*/ LCD_WINENABLE_WEN0,
295 },
296 {
297 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
298 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
299 LCD_WINCTRL1_PO_16BPP,
300 /* mode_winenable*/ 0,
301 },
302 {
303 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
304 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_32BPP |
305 LCD_WINCTRL1_PO_00|LCD_WINCTRL1_PIPE,
306 /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/,
307 },
308 {
309 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
310 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
311 LCD_WINCTRL1_PO_16BPP |
312 LCD_WINCTRL1_PIPE,
313 /* mode_winenable*/ 0,
314 },
315 },
316 },
317 /* Need VGA 640 @ 24bpp, @ 32bpp */
318 /* Need VGA 800 @ 24bpp, @ 32bpp */
319 /* Need VGA 1024 @ 24bpp, @ 32bpp */
320 };
321
322 /*
323 * Controller configurations for various panels.
324 */
325
326 struct panel_settings
327 {
328 const char name[25]; /* Full name <vendor>_<model> */
329
330 struct fb_monspecs monspecs; /* FB monitor specs */
331
332 /* panel timings */
333 uint32 mode_screen;
334 uint32 mode_horztiming;
335 uint32 mode_verttiming;
336 uint32 mode_clkcontrol;
337 uint32 mode_pwmdiv;
338 uint32 mode_pwmhi;
339 uint32 mode_outmask;
340 uint32 mode_fifoctrl;
341 uint32 mode_toyclksrc;
342 uint32 mode_backlight;
343 uint32 mode_auxpll;
344 int (*device_init)(void);
345 int (*device_shutdown)(void);
346 #define Xres min_xres
347 #define Yres min_yres
348 u32 min_xres; /* Minimum horizontal resolution */
349 u32 max_xres; /* Maximum horizontal resolution */
350 u32 min_yres; /* Minimum vertical resolution */
351 u32 max_yres; /* Maximum vertical resolution */
352 };
353
354 /********************************************************************/
355
356 /* List of panels known to work with the AU1200 LCD controller.
357 * To add a new panel, enter the same specifications as the
358 * Generic_TFT one, and MAKE SURE that it doesn't conflicts
359 * with the controller restrictions. Restrictions are:
360 *
361 * STN color panels: max_bpp <= 12
362 * STN mono panels: max_bpp <= 4
363 * TFT panels: max_bpp <= 16
364 * max_xres <= 800
365 * max_yres <= 600
366 */
367 static struct panel_settings known_lcd_panels[] =
368 {
369 [0] = { /* QVGA 320x240 H:33.3kHz V:110Hz */
370 .name = "QVGA_320x240",
371 .monspecs = {
372 .modedb = NULL,
373 .modedb_len = 0,
374 .hfmin = 30000,
375 .hfmax = 70000,
376 .vfmin = 60,
377 .vfmax = 60,
378 .dclkmin = 6000000,
379 .dclkmax = 28000000,
380 .input = FB_DISP_RGB,
381 },
382 .mode_screen = LCD_SCREEN_SX_N(320) |
383 LCD_SCREEN_SY_N(240),
384 .mode_horztiming = 0x00c4623b,
385 .mode_verttiming = 0x00502814,
386 .mode_clkcontrol = 0x00020002, /* /4=24Mhz */
387 .mode_pwmdiv = 0x00000000,
388 .mode_pwmhi = 0x00000000,
389 .mode_outmask = 0x00FFFFFF,
390 .mode_fifoctrl = 0x2f2f2f2f,
391 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
392 .mode_backlight = 0x00000000,
393 .mode_auxpll = 8, /* 96MHz AUXPLL */
394 .device_init = NULL,
395 .device_shutdown = NULL,
396 320, 320,
397 240, 240,
398 },
399
400 [1] = { /* VGA 640x480 H:30.3kHz V:58Hz */
401 .name = "VGA_640x480",
402 .monspecs = {
403 .modedb = NULL,
404 .modedb_len = 0,
405 .hfmin = 30000,
406 .hfmax = 70000,
407 .vfmin = 60,
408 .vfmax = 60,
409 .dclkmin = 6000000,
410 .dclkmax = 28000000,
411 .input = FB_DISP_RGB,
412 },
413 .mode_screen = 0x13f9df80,
414 .mode_horztiming = 0x003c5859,
415 .mode_verttiming = 0x00741201,
416 .mode_clkcontrol = 0x00020001, /* /4=24Mhz */
417 .mode_pwmdiv = 0x00000000,
418 .mode_pwmhi = 0x00000000,
419 .mode_outmask = 0x00FFFFFF,
420 .mode_fifoctrl = 0x2f2f2f2f,
421 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
422 .mode_backlight = 0x00000000,
423 .mode_auxpll = 8, /* 96MHz AUXPLL */
424 .device_init = NULL,
425 .device_shutdown = NULL,
426 640, 480,
427 640, 480,
428 },
429
430 [2] = { /* SVGA 800x600 H:46.1kHz V:69Hz */
431 .name = "SVGA_800x600",
432 .monspecs = {
433 .modedb = NULL,
434 .modedb_len = 0,
435 .hfmin = 30000,
436 .hfmax = 70000,
437 .vfmin = 60,
438 .vfmax = 60,
439 .dclkmin = 6000000,
440 .dclkmax = 28000000,
441 .input = FB_DISP_RGB,
442 },
443 .mode_screen = 0x18fa5780,
444 .mode_horztiming = 0x00dc7e77,
445 .mode_verttiming = 0x00584805,
446 .mode_clkcontrol = 0x00020000, /* /2=48Mhz */
447 .mode_pwmdiv = 0x00000000,
448 .mode_pwmhi = 0x00000000,
449 .mode_outmask = 0x00FFFFFF,
450 .mode_fifoctrl = 0x2f2f2f2f,
451 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
452 .mode_backlight = 0x00000000,
453 .mode_auxpll = 8, /* 96MHz AUXPLL */
454 .device_init = NULL,
455 .device_shutdown = NULL,
456 800, 800,
457 600, 600,
458 },
459
460 [3] = { /* XVGA 1024x768 H:56.2kHz V:70Hz */
461 .name = "XVGA_1024x768",
462 .monspecs = {
463 .modedb = NULL,
464 .modedb_len = 0,
465 .hfmin = 30000,
466 .hfmax = 70000,
467 .vfmin = 60,
468 .vfmax = 60,
469 .dclkmin = 6000000,
470 .dclkmax = 28000000,
471 .input = FB_DISP_RGB,
472 },
473 .mode_screen = 0x1ffaff80,
474 .mode_horztiming = 0x007d0e57,
475 .mode_verttiming = 0x00740a01,
476 .mode_clkcontrol = 0x000A0000, /* /1 */
477 .mode_pwmdiv = 0x00000000,
478 .mode_pwmhi = 0x00000000,
479 .mode_outmask = 0x00FFFFFF,
480 .mode_fifoctrl = 0x2f2f2f2f,
481 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
482 .mode_backlight = 0x00000000,
483 .mode_auxpll = 6, /* 72MHz AUXPLL */
484 .device_init = NULL,
485 .device_shutdown = NULL,
486 1024, 1024,
487 768, 768,
488 },
489
490 [4] = { /* XVGA XVGA 1280x1024 H:68.5kHz V:65Hz */
491 .name = "XVGA_1280x1024",
492 .monspecs = {
493 .modedb = NULL,
494 .modedb_len = 0,
495 .hfmin = 30000,
496 .hfmax = 70000,
497 .vfmin = 60,
498 .vfmax = 60,
499 .dclkmin = 6000000,
500 .dclkmax = 28000000,
501 .input = FB_DISP_RGB,
502 },
503 .mode_screen = 0x27fbff80,
504 .mode_horztiming = 0x00cdb2c7,
505 .mode_verttiming = 0x00600002,
506 .mode_clkcontrol = 0x000A0000, /* /1 */
507 .mode_pwmdiv = 0x00000000,
508 .mode_pwmhi = 0x00000000,
509 .mode_outmask = 0x00FFFFFF,
510 .mode_fifoctrl = 0x2f2f2f2f,
511 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
512 .mode_backlight = 0x00000000,
513 .mode_auxpll = 10, /* 120MHz AUXPLL */
514 .device_init = NULL,
515 .device_shutdown = NULL,
516 1280, 1280,
517 1024, 1024,
518 },
519
520 [5] = { /* Samsung 1024x768 TFT */
521 .name = "Samsung_1024x768_TFT",
522 .monspecs = {
523 .modedb = NULL,
524 .modedb_len = 0,
525 .hfmin = 30000,
526 .hfmax = 70000,
527 .vfmin = 60,
528 .vfmax = 60,
529 .dclkmin = 6000000,
530 .dclkmax = 28000000,
531 .input = FB_DISP_RGB,
532 },
533 .mode_screen = 0x1ffaff80,
534 .mode_horztiming = 0x018cc677,
535 .mode_verttiming = 0x00241217,
536 .mode_clkcontrol = 0x00000000, /* SCB 0x1 /4=24Mhz */
537 .mode_pwmdiv = 0x8000063f, /* SCB 0x0 */
538 .mode_pwmhi = 0x03400000, /* SCB 0x0 */
539 .mode_outmask = 0x00FFFFFF,
540 .mode_fifoctrl = 0x2f2f2f2f,
541 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
542 .mode_backlight = 0x00000000,
543 .mode_auxpll = 8, /* 96MHz AUXPLL */
544 .device_init = board_au1200fb_panel_init,
545 .device_shutdown = board_au1200fb_panel_shutdown,
546 1024, 1024,
547 768, 768,
548 },
549
550 [6] = { /* Toshiba 640x480 TFT */
551 .name = "Toshiba_640x480_TFT",
552 .monspecs = {
553 .modedb = NULL,
554 .modedb_len = 0,
555 .hfmin = 30000,
556 .hfmax = 70000,
557 .vfmin = 60,
558 .vfmax = 60,
559 .dclkmin = 6000000,
560 .dclkmax = 28000000,
561 .input = FB_DISP_RGB,
562 },
563 .mode_screen = LCD_SCREEN_SX_N(640) |
564 LCD_SCREEN_SY_N(480),
565 .mode_horztiming = LCD_HORZTIMING_HPW_N(96) |
566 LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(51),
567 .mode_verttiming = LCD_VERTTIMING_VPW_N(2) |
568 LCD_VERTTIMING_VND1_N(11) | LCD_VERTTIMING_VND2_N(32),
569 .mode_clkcontrol = 0x00000000, /* /4=24Mhz */
570 .mode_pwmdiv = 0x8000063f,
571 .mode_pwmhi = 0x03400000,
572 .mode_outmask = 0x00fcfcfc,
573 .mode_fifoctrl = 0x2f2f2f2f,
574 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
575 .mode_backlight = 0x00000000,
576 .mode_auxpll = 8, /* 96MHz AUXPLL */
577 .device_init = board_au1200fb_panel_init,
578 .device_shutdown = board_au1200fb_panel_shutdown,
579 640, 480,
580 640, 480,
581 },
582
583 [7] = { /* Sharp 320x240 TFT */
584 .name = "Sharp_320x240_TFT",
585 .monspecs = {
586 .modedb = NULL,
587 .modedb_len = 0,
588 .hfmin = 12500,
589 .hfmax = 20000,
590 .vfmin = 38,
591 .vfmax = 81,
592 .dclkmin = 4500000,
593 .dclkmax = 6800000,
594 .input = FB_DISP_RGB,
595 },
596 .mode_screen = LCD_SCREEN_SX_N(320) |
597 LCD_SCREEN_SY_N(240),
598 .mode_horztiming = LCD_HORZTIMING_HPW_N(60) |
599 LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(2),
600 .mode_verttiming = LCD_VERTTIMING_VPW_N(2) |
601 LCD_VERTTIMING_VND1_N(2) | LCD_VERTTIMING_VND2_N(5),
602 .mode_clkcontrol = LCD_CLKCONTROL_PCD_N(7), /*16=6Mhz*/
603 .mode_pwmdiv = 0x8000063f,
604 .mode_pwmhi = 0x03400000,
605 .mode_outmask = 0x00fcfcfc,
606 .mode_fifoctrl = 0x2f2f2f2f,
607 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
608 .mode_backlight = 0x00000000,
609 .mode_auxpll = 8, /* 96MHz AUXPLL */
610 .device_init = board_au1200fb_panel_init,
611 .device_shutdown = board_au1200fb_panel_shutdown,
612 320, 320,
613 240, 240,
614 },
615
616 [8] = { /* Toppoly TD070WGCB2 7" 856x480 TFT */
617 .name = "Toppoly_TD070WGCB2",
618 .monspecs = {
619 .modedb = NULL,
620 .modedb_len = 0,
621 .hfmin = 30000,
622 .hfmax = 70000,
623 .vfmin = 60,
624 .vfmax = 60,
625 .dclkmin = 6000000,
626 .dclkmax = 28000000,
627 .input = FB_DISP_RGB,
628 },
629 .mode_screen = LCD_SCREEN_SX_N(856) |
630 LCD_SCREEN_SY_N(480),
631 .mode_horztiming = LCD_HORZTIMING_HND2_N(43) |
632 LCD_HORZTIMING_HND1_N(43) | LCD_HORZTIMING_HPW_N(114),
633 .mode_verttiming = LCD_VERTTIMING_VND2_N(20) |
634 LCD_VERTTIMING_VND1_N(21) | LCD_VERTTIMING_VPW_N(4),
635 .mode_clkcontrol = 0x00020001, /* /4=24Mhz */
636 .mode_pwmdiv = 0x8000063f,
637 .mode_pwmhi = 0x03400000,
638 .mode_outmask = 0x00fcfcfc,
639 .mode_fifoctrl = 0x2f2f2f2f,
640 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
641 .mode_backlight = 0x00000000,
642 .mode_auxpll = 8, /* 96MHz AUXPLL */
643 .device_init = board_au1200fb_panel_init,
644 .device_shutdown = board_au1200fb_panel_shutdown,
645 856, 856,
646 480, 480,
647 },
648 };
649
650 #define NUM_PANELS (ARRAY_SIZE(known_lcd_panels))
651
652 /********************************************************************/
653
654 #ifdef CONFIG_PM
655 static int set_brightness(unsigned int brightness)
656 {
657 unsigned int hi1, divider;
658
659 /* limit brightness pwm duty to >= 30/1600 */
660 if (brightness < 30) {
661 brightness = 30;
662 }
663 divider = (lcd->pwmdiv & 0x3FFFF) + 1;
664 hi1 = (lcd->pwmhi >> 16) + 1;
665 hi1 = (((brightness & 0xFF) + 1) * divider >> 8);
666 lcd->pwmhi &= 0xFFFF;
667 lcd->pwmhi |= (hi1 << 16);
668
669 return brightness;
670 }
671 #endif /* CONFIG_PM */
672
673 static int winbpp (unsigned int winctrl1)
674 {
675 int bits = 0;
676
677 /* how many bits are needed for each pixel format */
678 switch (winctrl1 & LCD_WINCTRL1_FRM) {
679 case LCD_WINCTRL1_FRM_1BPP:
680 bits = 1;
681 break;
682 case LCD_WINCTRL1_FRM_2BPP:
683 bits = 2;
684 break;
685 case LCD_WINCTRL1_FRM_4BPP:
686 bits = 4;
687 break;
688 case LCD_WINCTRL1_FRM_8BPP:
689 bits = 8;
690 break;
691 case LCD_WINCTRL1_FRM_12BPP:
692 case LCD_WINCTRL1_FRM_16BPP655:
693 case LCD_WINCTRL1_FRM_16BPP565:
694 case LCD_WINCTRL1_FRM_16BPP556:
695 case LCD_WINCTRL1_FRM_16BPPI1555:
696 case LCD_WINCTRL1_FRM_16BPPI5551:
697 case LCD_WINCTRL1_FRM_16BPPA1555:
698 case LCD_WINCTRL1_FRM_16BPPA5551:
699 bits = 16;
700 break;
701 case LCD_WINCTRL1_FRM_24BPP:
702 case LCD_WINCTRL1_FRM_32BPP:
703 bits = 32;
704 break;
705 }
706
707 return bits;
708 }
709
710 static int fbinfo2index (struct fb_info *fb_info)
711 {
712 int i;
713
714 for (i = 0; i < CONFIG_FB_AU1200_DEVS; ++i) {
715 if (fb_info == (struct fb_info *)(&_au1200fb_devices[i].fb_info))
716 return i;
717 }
718 printk("au1200fb: ERROR: fbinfo2index failed!\n");
719 return -1;
720 }
721
722 static int au1200_setlocation (struct au1200fb_device *fbdev, int plane,
723 int xpos, int ypos)
724 {
725 uint32 winctrl0, winctrl1, winenable, fb_offset = 0;
726 int xsz, ysz;
727
728 /* FIX!!! NOT CHECKING FOR COMPLETE OFFSCREEN YET */
729
730 winctrl0 = lcd->window[plane].winctrl0;
731 winctrl1 = lcd->window[plane].winctrl1;
732 winctrl0 &= (LCD_WINCTRL0_A | LCD_WINCTRL0_AEN);
733 winctrl1 &= ~(LCD_WINCTRL1_SZX | LCD_WINCTRL1_SZY);
734
735 /* Check for off-screen adjustments */
736 xsz = win->w[plane].xres;
737 ysz = win->w[plane].yres;
738 if ((xpos + win->w[plane].xres) > panel->Xres) {
739 /* Off-screen to the right */
740 xsz = panel->Xres - xpos; /* off by 1 ??? */
741 /*printk("off screen right\n");*/
742 }
743
744 if ((ypos + win->w[plane].yres) > panel->Yres) {
745 /* Off-screen to the bottom */
746 ysz = panel->Yres - ypos; /* off by 1 ??? */
747 /*printk("off screen bottom\n");*/
748 }
749
750 if (xpos < 0) {
751 /* Off-screen to the left */
752 xsz = win->w[plane].xres + xpos;
753 fb_offset += (((0 - xpos) * winbpp(lcd->window[plane].winctrl1))/8);
754 xpos = 0;
755 /*printk("off screen left\n");*/
756 }
757
758 if (ypos < 0) {
759 /* Off-screen to the top */
760 ysz = win->w[plane].yres + ypos;
761 ypos = 0;
762 /*printk("off screen top\n");*/
763 }
764
765 /* record settings */
766 win->w[plane].xpos = xpos;
767 win->w[plane].ypos = ypos;
768
769 xsz -= 1;
770 ysz -= 1;
771 winctrl0 |= (xpos << 21);
772 winctrl0 |= (ypos << 10);
773 winctrl1 |= (xsz << 11);
774 winctrl1 |= (ysz << 0);
775
776 /* Disable the window while making changes, then restore WINEN */
777 winenable = lcd->winenable & (1 << plane);
778 au_sync();
779 lcd->winenable &= ~(1 << plane);
780 lcd->window[plane].winctrl0 = winctrl0;
781 lcd->window[plane].winctrl1 = winctrl1;
782 lcd->window[plane].winbuf0 =
783 lcd->window[plane].winbuf1 = fbdev->fb_phys;
784 lcd->window[plane].winbufctrl = 0; /* select winbuf0 */
785 lcd->winenable |= winenable;
786 au_sync();
787
788 return 0;
789 }
790
791 static void au1200_setpanel (struct panel_settings *newpanel)
792 {
793 /*
794 * Perform global setup/init of LCD controller
795 */
796 uint32 winenable;
797
798 /* Make sure all windows disabled */
799 winenable = lcd->winenable;
800 lcd->winenable = 0;
801 au_sync();
802 /*
803 * Ensure everything is disabled before reconfiguring
804 */
805 if (lcd->screen & LCD_SCREEN_SEN) {
806 /* Wait for vertical sync period */
807 lcd->intstatus = LCD_INT_SS;
808 while ((lcd->intstatus & LCD_INT_SS) == 0) {
809 au_sync();
810 }
811
812 lcd->screen &= ~LCD_SCREEN_SEN; /*disable the controller*/
813
814 do {
815 lcd->intstatus = lcd->intstatus; /*clear interrupts*/
816 au_sync();
817 /*wait for controller to shut down*/
818 } while ((lcd->intstatus & LCD_INT_SD) == 0);
819
820 /* Call shutdown of current panel (if up) */
821 /* this must occur last, because if an external clock is driving
822 the controller, the clock cannot be turned off before first
823 shutting down the controller.
824 */
825 if (panel->device_shutdown != NULL)
826 panel->device_shutdown();
827 }
828
829 /* Newpanel == NULL indicates a shutdown operation only */
830 if (newpanel == NULL)
831 return;
832
833 panel = newpanel;
834
835 printk("Panel(%s), %dx%d\n", panel->name, panel->Xres, panel->Yres);
836
837 /*
838 * Setup clocking if internal LCD clock source (assumes sys_auxpll valid)
839 */
840 if (!(panel->mode_clkcontrol & LCD_CLKCONTROL_EXT))
841 {
842 uint32 sys_clksrc;
843 au_writel(panel->mode_auxpll, SYS_AUXPLL);
844 sys_clksrc = au_readl(SYS_CLKSRC) & ~0x0000001f;
845 sys_clksrc |= panel->mode_toyclksrc;
846 au_writel(sys_clksrc, SYS_CLKSRC);
847 }
848
849 /*
850 * Configure panel timings
851 */
852 lcd->screen = panel->mode_screen;
853 lcd->horztiming = panel->mode_horztiming;
854 lcd->verttiming = panel->mode_verttiming;
855 lcd->clkcontrol = panel->mode_clkcontrol;
856 lcd->pwmdiv = panel->mode_pwmdiv;
857 lcd->pwmhi = panel->mode_pwmhi;
858 lcd->outmask = panel->mode_outmask;
859 lcd->fifoctrl = panel->mode_fifoctrl;
860 au_sync();
861
862 lcd->winenable = winenable;
863
864 /*
865 * Re-enable screen now that it is configured
866 */
867 lcd->screen |= LCD_SCREEN_SEN;
868 au_sync();
869
870 /* Call init of panel */
871 if (panel->device_init != NULL) panel->device_init();
872
873 /* FIX!!!! not appropriate on panel change!!! Global setup/init */
874 lcd->intenable = 0;
875 lcd->intstatus = ~0;
876 lcd->backcolor = win->mode_backcolor;
877
878 /* Setup Color Key - FIX!!! */
879 lcd->colorkey = win->mode_colorkey;
880 lcd->colorkeymsk = win->mode_colorkeymsk;
881
882 /* Setup HWCursor - FIX!!! Need to support this eventually */
883 lcd->hwc.cursorctrl = 0;
884 lcd->hwc.cursorpos = 0;
885 lcd->hwc.cursorcolor0 = 0;
886 lcd->hwc.cursorcolor1 = 0;
887 lcd->hwc.cursorcolor2 = 0;
888 lcd->hwc.cursorcolor3 = 0;
889
890
891 }
892
893 static void au1200_setmode(struct au1200fb_device *fbdev)
894 {
895 int plane = fbdev->plane;
896 /* Window/plane setup */
897 lcd->window[plane].winctrl1 = ( 0
898 | LCD_WINCTRL1_PRI_N(plane)
899 | win->w[plane].mode_winctrl1 /* FRM,CCO,PO,PIPE */
900 ) ;
901
902 au1200_setlocation(fbdev, plane, win->w[plane].xpos, win->w[plane].ypos);
903
904 lcd->window[plane].winctrl2 = ( 0
905 | LCD_WINCTRL2_CKMODE_00
906 | LCD_WINCTRL2_DBM
907 | LCD_WINCTRL2_BX_N( fbdev->fb_info.fix.line_length)
908 | LCD_WINCTRL2_SCX_1
909 | LCD_WINCTRL2_SCY_1
910 ) ;
911 lcd->winenable |= win->w[plane].mode_winenable;
912 au_sync();
913 }
914
915
916 /* Inline helpers */
917
918 /*#define panel_is_dual(panel) ((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/
919 /*#define panel_is_active(panel)((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/
920
921 #define panel_is_color(panel) ((panel->mode_screen & LCD_SCREEN_PT) <= LCD_SCREEN_PT_CDSTN)
922
923 /* Bitfields format supported by the controller. */
924 static struct fb_bitfield rgb_bitfields[][4] = {
925 /* Red, Green, Blue, Transp */
926 [LCD_WINCTRL1_FRM_16BPP655 >> 25] =
927 { { 10, 6, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
928
929 [LCD_WINCTRL1_FRM_16BPP565 >> 25] =
930 { { 11, 5, 0 }, { 5, 6, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
931
932 [LCD_WINCTRL1_FRM_16BPP556 >> 25] =
933 { { 11, 5, 0 }, { 6, 5, 0 }, { 0, 6, 0 }, { 0, 0, 0 } },
934
935 [LCD_WINCTRL1_FRM_16BPPI1555 >> 25] =
936 { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
937
938 [LCD_WINCTRL1_FRM_16BPPI5551 >> 25] =
939 { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 0, 0 } },
940
941 [LCD_WINCTRL1_FRM_16BPPA1555 >> 25] =
942 { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 15, 1, 0 } },
943
944 [LCD_WINCTRL1_FRM_16BPPA5551 >> 25] =
945 { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 1, 0 } },
946
947 [LCD_WINCTRL1_FRM_24BPP >> 25] =
948 { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 0, 0, 0 } },
949
950 [LCD_WINCTRL1_FRM_32BPP >> 25] =
951 { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 24, 0, 0 } },
952 };
953
954 /*-------------------------------------------------------------------------*/
955
956 /* Helpers */
957
958 static void au1200fb_update_fbinfo(struct fb_info *fbi)
959 {
960 /* FIX!!!! This also needs to take the window pixel format into account!!! */
961
962 /* Update var-dependent FB info */
963 if (panel_is_color(panel)) {
964 if (fbi->var.bits_per_pixel <= 8) {
965 /* palettized */
966 fbi->fix.visual = FB_VISUAL_PSEUDOCOLOR;
967 fbi->fix.line_length = fbi->var.xres_virtual /
968 (8/fbi->var.bits_per_pixel);
969 } else {
970 /* non-palettized */
971 fbi->fix.visual = FB_VISUAL_TRUECOLOR;
972 fbi->fix.line_length = fbi->var.xres_virtual * (fbi->var.bits_per_pixel / 8);
973 }
974 } else {
975 /* mono FIX!!! mono 8 and 4 bits */
976 fbi->fix.visual = FB_VISUAL_MONO10;
977 fbi->fix.line_length = fbi->var.xres_virtual / 8;
978 }
979
980 fbi->screen_size = fbi->fix.line_length * fbi->var.yres_virtual;
981 print_dbg("line length: %d\n", fbi->fix.line_length);
982 print_dbg("bits_per_pixel: %d\n", fbi->var.bits_per_pixel);
983 }
984
985 /*-------------------------------------------------------------------------*/
986
987 /* AU1200 framebuffer driver */
988
989 /* fb_check_var
990 * Validate var settings with hardware restrictions and modify it if necessary
991 */
992 static int au1200fb_fb_check_var(struct fb_var_screeninfo *var,
993 struct fb_info *fbi)
994 {
995 struct au1200fb_device *fbdev = (struct au1200fb_device *)fbi;
996 u32 pixclock;
997 int screen_size, plane;
998
999 plane = fbdev->plane;
1000
1001 /* Make sure that the mode respect all LCD controller and
1002 * panel restrictions. */
1003 var->xres = win->w[plane].xres;
1004 var->yres = win->w[plane].yres;
1005
1006 /* No need for virtual resolution support */
1007 var->xres_virtual = var->xres;
1008 var->yres_virtual = var->yres;
1009
1010 var->bits_per_pixel = winbpp(win->w[plane].mode_winctrl1);
1011
1012 screen_size = var->xres_virtual * var->yres_virtual;
1013 if (var->bits_per_pixel > 8) screen_size *= (var->bits_per_pixel / 8);
1014 else screen_size /= (8/var->bits_per_pixel);
1015
1016 if (fbdev->fb_len < screen_size)
1017 return -EINVAL; /* Virtual screen is to big, abort */
1018
1019 /* FIX!!!! what are the implicaitons of ignoring this for windows ??? */
1020 /* The max LCD clock is fixed to 48MHz (value of AUX_CLK). The pixel
1021 * clock can only be obtain by dividing this value by an even integer.
1022 * Fallback to a slower pixel clock if necessary. */
1023 pixclock = max((u32)(PICOS2KHZ(var->pixclock) * 1000), fbi->monspecs.dclkmin);
1024 pixclock = min(pixclock, min(fbi->monspecs.dclkmax, (u32)AU1200_LCD_MAX_CLK/2));
1025
1026 if (AU1200_LCD_MAX_CLK % pixclock) {
1027 int diff = AU1200_LCD_MAX_CLK % pixclock;
1028 pixclock -= diff;
1029 }
1030
1031 var->pixclock = KHZ2PICOS(pixclock/1000);
1032 /* Set bitfield accordingly */
1033 switch (var->bits_per_pixel) {
1034 case 16:
1035 {
1036 /* 16bpp True color.
1037 * These must be set to MATCH WINCTRL[FORM] */
1038 int idx;
1039 idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25;
1040 var->red = rgb_bitfields[idx][0];
1041 var->green = rgb_bitfields[idx][1];
1042 var->blue = rgb_bitfields[idx][2];
1043 var->transp = rgb_bitfields[idx][3];
1044 break;
1045 }
1046
1047 case 32:
1048 {
1049 /* 32bpp True color.
1050 * These must be set to MATCH WINCTRL[FORM] */
1051 int idx;
1052 idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25;
1053 var->red = rgb_bitfields[idx][0];
1054 var->green = rgb_bitfields[idx][1];
1055 var->blue = rgb_bitfields[idx][2];
1056 var->transp = rgb_bitfields[idx][3];
1057 break;
1058 }
1059 default:
1060 print_dbg("Unsupported depth %dbpp", var->bits_per_pixel);
1061 return -EINVAL;
1062 }
1063
1064 return 0;
1065 }
1066
1067 /* fb_set_par
1068 * Set hardware with var settings. This will enable the controller with a
1069 * specific mode, normally validated with the fb_check_var method
1070 */
1071 static int au1200fb_fb_set_par(struct fb_info *fbi)
1072 {
1073 struct au1200fb_device *fbdev = (struct au1200fb_device *)fbi;
1074
1075 au1200fb_update_fbinfo(fbi);
1076 au1200_setmode(fbdev);
1077
1078 return 0;
1079 }
1080
1081 /* fb_setcolreg
1082 * Set color in LCD palette.
1083 */
1084 static int au1200fb_fb_setcolreg(unsigned regno, unsigned red, unsigned green,
1085 unsigned blue, unsigned transp, struct fb_info *fbi)
1086 {
1087 volatile u32 *palette = lcd->palette;
1088 u32 value;
1089
1090 if (regno > (AU1200_LCD_NBR_PALETTE_ENTRIES - 1))
1091 return -EINVAL;
1092
1093 if (fbi->var.grayscale) {
1094 /* Convert color to grayscale */
1095 red = green = blue =
1096 (19595 * red + 38470 * green + 7471 * blue) >> 16;
1097 }
1098
1099 if (fbi->fix.visual == FB_VISUAL_TRUECOLOR) {
1100 /* Place color in the pseudopalette */
1101 if (regno > 16)
1102 return -EINVAL;
1103
1104 palette = (u32*) fbi->pseudo_palette;
1105
1106 red >>= (16 - fbi->var.red.length);
1107 green >>= (16 - fbi->var.green.length);
1108 blue >>= (16 - fbi->var.blue.length);
1109
1110 value = (red << fbi->var.red.offset) |
1111 (green << fbi->var.green.offset)|
1112 (blue << fbi->var.blue.offset);
1113 value &= 0xFFFF;
1114
1115 } else if (1 /*FIX!!! panel_is_active(fbdev->panel)*/) {
1116 /* COLOR TFT PALLETTIZED (use RGB 565) */
1117 value = (red & 0xF800)|((green >> 5) &
1118 0x07E0)|((blue >> 11) & 0x001F);
1119 value &= 0xFFFF;
1120
1121 } else if (0 /*panel_is_color(fbdev->panel)*/) {
1122 /* COLOR STN MODE */
1123 value = 0x1234;
1124 value &= 0xFFF;
1125 } else {
1126 /* MONOCHROME MODE */
1127 value = (green >> 12) & 0x000F;
1128 value &= 0xF;
1129 }
1130
1131 palette[regno] = value;
1132
1133 return 0;
1134 }
1135
1136 /* fb_blank
1137 * Blank the screen. Depending on the mode, the screen will be
1138 * activated with the backlight color, or desactivated
1139 */
1140 static int au1200fb_fb_blank(int blank_mode, struct fb_info *fbi)
1141 {
1142 /* Short-circuit screen blanking */
1143 if (noblanking)
1144 return 0;
1145
1146 switch (blank_mode) {
1147
1148 case FB_BLANK_UNBLANK:
1149 case FB_BLANK_NORMAL:
1150 /* printk("turn on panel\n"); */
1151 au1200_setpanel(panel);
1152 break;
1153 case FB_BLANK_VSYNC_SUSPEND:
1154 case FB_BLANK_HSYNC_SUSPEND:
1155 case FB_BLANK_POWERDOWN:
1156 /* printk("turn off panel\n"); */
1157 au1200_setpanel(NULL);
1158 break;
1159 default:
1160 break;
1161
1162 }
1163
1164 /* FB_BLANK_NORMAL is a soft blank */
1165 return (blank_mode == FB_BLANK_NORMAL) ? -EINVAL : 0;
1166 }
1167
1168 /* fb_mmap
1169 * Map video memory in user space. We don't use the generic fb_mmap
1170 * method mainly to allow the use of the TLB streaming flag (CCA=6)
1171 */
1172 static int au1200fb_fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
1173
1174 {
1175 unsigned int len;
1176 unsigned long start=0, off;
1177 struct au1200fb_device *fbdev = (struct au1200fb_device *) info;
1178
1179 #ifdef CONFIG_PM
1180 au1xxx_pm_access(LCD_pm_dev);
1181 #endif
1182
1183 if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) {
1184 return -EINVAL;
1185 }
1186
1187 start = fbdev->fb_phys & PAGE_MASK;
1188 len = PAGE_ALIGN((start & ~PAGE_MASK) + fbdev->fb_len);
1189
1190 off = vma->vm_pgoff << PAGE_SHIFT;
1191
1192 if ((vma->vm_end - vma->vm_start + off) > len) {
1193 return -EINVAL;
1194 }
1195
1196 off += start;
1197 vma->vm_pgoff = off >> PAGE_SHIFT;
1198
1199 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
1200 pgprot_val(vma->vm_page_prot) |= _CACHE_MASK; /* CCA=7 */
1201
1202 vma->vm_flags |= VM_IO;
1203
1204 return io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
1205 vma->vm_end - vma->vm_start,
1206 vma->vm_page_prot);
1207
1208 return 0;
1209 }
1210
1211 static void set_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata)
1212 {
1213
1214 unsigned int hi1, divider;
1215
1216 /* SCREEN_SIZE: user cannot reset size, must switch panel choice */
1217
1218 if (pdata->flags & SCREEN_BACKCOLOR)
1219 lcd->backcolor = pdata->backcolor;
1220
1221 if (pdata->flags & SCREEN_BRIGHTNESS) {
1222
1223 // limit brightness pwm duty to >= 30/1600
1224 if (pdata->brightness < 30) {
1225 pdata->brightness = 30;
1226 }
1227 divider = (lcd->pwmdiv & 0x3FFFF) + 1;
1228 hi1 = (lcd->pwmhi >> 16) + 1;
1229 hi1 = (((pdata->brightness & 0xFF)+1) * divider >> 8);
1230 lcd->pwmhi &= 0xFFFF;
1231 lcd->pwmhi |= (hi1 << 16);
1232 }
1233
1234 if (pdata->flags & SCREEN_COLORKEY)
1235 lcd->colorkey = pdata->colorkey;
1236
1237 if (pdata->flags & SCREEN_MASK)
1238 lcd->colorkeymsk = pdata->mask;
1239 au_sync();
1240 }
1241
1242 static void get_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata)
1243 {
1244 unsigned int hi1, divider;
1245
1246 pdata->xsize = ((lcd->screen & LCD_SCREEN_SX) >> 19) + 1;
1247 pdata->ysize = ((lcd->screen & LCD_SCREEN_SY) >> 8) + 1;
1248
1249 pdata->backcolor = lcd->backcolor;
1250 pdata->colorkey = lcd->colorkey;
1251 pdata->mask = lcd->colorkeymsk;
1252
1253 // brightness
1254 hi1 = (lcd->pwmhi >> 16) + 1;
1255 divider = (lcd->pwmdiv & 0x3FFFF) + 1;
1256 pdata->brightness = ((hi1 << 8) / divider) - 1;
1257 au_sync();
1258 }
1259
1260 static void set_window(unsigned int plane,
1261 struct au1200_lcd_window_regs_t *pdata)
1262 {
1263 unsigned int val, bpp;
1264
1265 /* Window control register 0 */
1266 if (pdata->flags & WIN_POSITION) {
1267 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_OX |
1268 LCD_WINCTRL0_OY);
1269 val |= ((pdata->xpos << 21) & LCD_WINCTRL0_OX);
1270 val |= ((pdata->ypos << 10) & LCD_WINCTRL0_OY);
1271 lcd->window[plane].winctrl0 = val;
1272 }
1273 if (pdata->flags & WIN_ALPHA_COLOR) {
1274 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_A);
1275 val |= ((pdata->alpha_color << 2) & LCD_WINCTRL0_A);
1276 lcd->window[plane].winctrl0 = val;
1277 }
1278 if (pdata->flags & WIN_ALPHA_MODE) {
1279 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_AEN);
1280 val |= ((pdata->alpha_mode << 1) & LCD_WINCTRL0_AEN);
1281 lcd->window[plane].winctrl0 = val;
1282 }
1283
1284 /* Window control register 1 */
1285 if (pdata->flags & WIN_PRIORITY) {
1286 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PRI);
1287 val |= ((pdata->priority << 30) & LCD_WINCTRL1_PRI);
1288 lcd->window[plane].winctrl1 = val;
1289 }
1290 if (pdata->flags & WIN_CHANNEL) {
1291 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PIPE);
1292 val |= ((pdata->channel << 29) & LCD_WINCTRL1_PIPE);
1293 lcd->window[plane].winctrl1 = val;
1294 }
1295 if (pdata->flags & WIN_BUFFER_FORMAT) {
1296 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_FRM);
1297 val |= ((pdata->buffer_format << 25) & LCD_WINCTRL1_FRM);
1298 lcd->window[plane].winctrl1 = val;
1299 }
1300 if (pdata->flags & WIN_COLOR_ORDER) {
1301 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_CCO);
1302 val |= ((pdata->color_order << 24) & LCD_WINCTRL1_CCO);
1303 lcd->window[plane].winctrl1 = val;
1304 }
1305 if (pdata->flags & WIN_PIXEL_ORDER) {
1306 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PO);
1307 val |= ((pdata->pixel_order << 22) & LCD_WINCTRL1_PO);
1308 lcd->window[plane].winctrl1 = val;
1309 }
1310 if (pdata->flags & WIN_SIZE) {
1311 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_SZX |
1312 LCD_WINCTRL1_SZY);
1313 val |= (((pdata->xsize << 11) - 1) & LCD_WINCTRL1_SZX);
1314 val |= (((pdata->ysize) - 1) & LCD_WINCTRL1_SZY);
1315 lcd->window[plane].winctrl1 = val;
1316 /* program buffer line width */
1317 bpp = winbpp(val) / 8;
1318 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_BX);
1319 val |= (((pdata->xsize * bpp) << 8) & LCD_WINCTRL2_BX);
1320 lcd->window[plane].winctrl2 = val;
1321 }
1322
1323 /* Window control register 2 */
1324 if (pdata->flags & WIN_COLORKEY_MODE) {
1325 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_CKMODE);
1326 val |= ((pdata->colorkey_mode << 24) & LCD_WINCTRL2_CKMODE);
1327 lcd->window[plane].winctrl2 = val;
1328 }
1329 if (pdata->flags & WIN_DOUBLE_BUFFER_MODE) {
1330 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_DBM);
1331 val |= ((pdata->double_buffer_mode << 23) & LCD_WINCTRL2_DBM);
1332 lcd->window[plane].winctrl2 = val;
1333 }
1334 if (pdata->flags & WIN_RAM_ARRAY_MODE) {
1335 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_RAM);
1336 val |= ((pdata->ram_array_mode << 21) & LCD_WINCTRL2_RAM);
1337 lcd->window[plane].winctrl2 = val;
1338 }
1339
1340 /* Buffer line width programmed with WIN_SIZE */
1341
1342 if (pdata->flags & WIN_BUFFER_SCALE) {
1343 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_SCX |
1344 LCD_WINCTRL2_SCY);
1345 val |= ((pdata->xsize << 11) & LCD_WINCTRL2_SCX);
1346 val |= ((pdata->ysize) & LCD_WINCTRL2_SCY);
1347 lcd->window[plane].winctrl2 = val;
1348 }
1349
1350 if (pdata->flags & WIN_ENABLE) {
1351 val = lcd->winenable;
1352 val &= ~(1<<plane);
1353 val |= (pdata->enable & 1) << plane;
1354 lcd->winenable = val;
1355 }
1356 au_sync();
1357 }
1358
1359 static void get_window(unsigned int plane,
1360 struct au1200_lcd_window_regs_t *pdata)
1361 {
1362 /* Window control register 0 */
1363 pdata->xpos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OX) >> 21;
1364 pdata->ypos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OY) >> 10;
1365 pdata->alpha_color = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_A) >> 2;
1366 pdata->alpha_mode = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_AEN) >> 1;
1367
1368 /* Window control register 1 */
1369 pdata->priority = (lcd->window[plane].winctrl1& LCD_WINCTRL1_PRI) >> 30;
1370 pdata->channel = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PIPE) >> 29;
1371 pdata->buffer_format = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_FRM) >> 25;
1372 pdata->color_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_CCO) >> 24;
1373 pdata->pixel_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PO) >> 22;
1374 pdata->xsize = ((lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZX) >> 11) + 1;
1375 pdata->ysize = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZY) + 1;
1376
1377 /* Window control register 2 */
1378 pdata->colorkey_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_CKMODE) >> 24;
1379 pdata->double_buffer_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_DBM) >> 23;
1380 pdata->ram_array_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_RAM) >> 21;
1381
1382 pdata->enable = (lcd->winenable >> plane) & 1;
1383 au_sync();
1384 }
1385
1386 static int au1200fb_ioctl(struct fb_info *info, unsigned int cmd,
1387 unsigned long arg)
1388 {
1389 int plane;
1390 int val;
1391
1392 #ifdef CONFIG_PM
1393 au1xxx_pm_access(LCD_pm_dev);
1394 #endif
1395
1396 plane = fbinfo2index(info);
1397 print_dbg("au1200fb: ioctl %d on plane %d\n", cmd, plane);
1398
1399 if (cmd == AU1200_LCD_FB_IOCTL) {
1400 struct au1200_lcd_iodata_t iodata;
1401
1402 if (copy_from_user(&iodata, (void __user *) arg, sizeof(iodata)))
1403 return -EFAULT;
1404
1405 print_dbg("FB IOCTL called\n");
1406
1407 switch (iodata.subcmd) {
1408 case AU1200_LCD_SET_SCREEN:
1409 print_dbg("AU1200_LCD_SET_SCREEN\n");
1410 set_global(cmd, &iodata.global);
1411 break;
1412
1413 case AU1200_LCD_GET_SCREEN:
1414 print_dbg("AU1200_LCD_GET_SCREEN\n");
1415 get_global(cmd, &iodata.global);
1416 break;
1417
1418 case AU1200_LCD_SET_WINDOW:
1419 print_dbg("AU1200_LCD_SET_WINDOW\n");
1420 set_window(plane, &iodata.window);
1421 break;
1422
1423 case AU1200_LCD_GET_WINDOW:
1424 print_dbg("AU1200_LCD_GET_WINDOW\n");
1425 get_window(plane, &iodata.window);
1426 break;
1427
1428 case AU1200_LCD_SET_PANEL:
1429 print_dbg("AU1200_LCD_SET_PANEL\n");
1430 if ((iodata.global.panel_choice >= 0) &&
1431 (iodata.global.panel_choice <
1432 NUM_PANELS))
1433 {
1434 struct panel_settings *newpanel;
1435 panel_index = iodata.global.panel_choice;
1436 newpanel = &known_lcd_panels[panel_index];
1437 au1200_setpanel(newpanel);
1438 }
1439 break;
1440
1441 case AU1200_LCD_GET_PANEL:
1442 print_dbg("AU1200_LCD_GET_PANEL\n");
1443 iodata.global.panel_choice = panel_index;
1444 break;
1445
1446 default:
1447 return -EINVAL;
1448 }
1449
1450 val = copy_to_user((void __user *) arg, &iodata, sizeof(iodata));
1451 if (val) {
1452 print_dbg("error: could not copy %d bytes\n", val);
1453 return -EFAULT;
1454 }
1455 }
1456
1457 return 0;
1458 }
1459
1460
1461 static struct fb_ops au1200fb_fb_ops = {
1462 .owner = THIS_MODULE,
1463 .fb_check_var = au1200fb_fb_check_var,
1464 .fb_set_par = au1200fb_fb_set_par,
1465 .fb_setcolreg = au1200fb_fb_setcolreg,
1466 .fb_blank = au1200fb_fb_blank,
1467 .fb_fillrect = cfb_fillrect,
1468 .fb_copyarea = cfb_copyarea,
1469 .fb_imageblit = cfb_imageblit,
1470 .fb_sync = NULL,
1471 .fb_ioctl = au1200fb_ioctl,
1472 .fb_mmap = au1200fb_fb_mmap,
1473 };
1474
1475 /*-------------------------------------------------------------------------*/
1476
1477 static irqreturn_t au1200fb_handle_irq(int irq, void* dev_id)
1478 {
1479 /* Nothing to do for now, just clear any pending interrupt */
1480 lcd->intstatus = lcd->intstatus;
1481 au_sync();
1482
1483 return IRQ_HANDLED;
1484 }
1485
1486 /*-------------------------------------------------------------------------*/
1487
1488 /* AU1200 LCD device probe helpers */
1489
1490 static int au1200fb_init_fbinfo(struct au1200fb_device *fbdev)
1491 {
1492 struct fb_info *fbi = &fbdev->fb_info;
1493 int bpp;
1494
1495 memset(fbi, 0, sizeof(struct fb_info));
1496 fbi->fbops = &au1200fb_fb_ops;
1497
1498 bpp = winbpp(win->w[fbdev->plane].mode_winctrl1);
1499
1500 /* Copy monitor specs from panel data */
1501 memcpy(&fbi->monspecs, &panel->monspecs, sizeof(struct fb_monspecs));
1502
1503 /* We first try the user mode passed in argument. If that failed,
1504 * or if no one has been specified, we default to the first mode of the
1505 * panel list. Note that after this call, var data will be set */
1506 if (!fb_find_mode(&fbi->var,
1507 fbi,
1508 NULL, /* drv_info.opt_mode, */
1509 fbi->monspecs.modedb,
1510 fbi->monspecs.modedb_len,
1511 fbi->monspecs.modedb,
1512 bpp)) {
1513
1514 print_err("Cannot find valid mode for panel %s", panel->name);
1515 return -EFAULT;
1516 }
1517
1518 fbi->pseudo_palette = kcalloc(16, sizeof(u32), GFP_KERNEL);
1519 if (!fbi->pseudo_palette) {
1520 return -ENOMEM;
1521 }
1522
1523 if (fb_alloc_cmap(&fbi->cmap, AU1200_LCD_NBR_PALETTE_ENTRIES, 0) < 0) {
1524 print_err("Fail to allocate colormap (%d entries)",
1525 AU1200_LCD_NBR_PALETTE_ENTRIES);
1526 kfree(fbi->pseudo_palette);
1527 return -EFAULT;
1528 }
1529
1530 strncpy(fbi->fix.id, "AU1200", sizeof(fbi->fix.id));
1531 fbi->fix.smem_start = fbdev->fb_phys;
1532 fbi->fix.smem_len = fbdev->fb_len;
1533 fbi->fix.type = FB_TYPE_PACKED_PIXELS;
1534 fbi->fix.xpanstep = 0;
1535 fbi->fix.ypanstep = 0;
1536 fbi->fix.mmio_start = 0;
1537 fbi->fix.mmio_len = 0;
1538 fbi->fix.accel = FB_ACCEL_NONE;
1539
1540 fbi->screen_base = (char __iomem *) fbdev->fb_mem;
1541
1542 au1200fb_update_fbinfo(fbi);
1543
1544 return 0;
1545 }
1546
1547 /*-------------------------------------------------------------------------*/
1548
1549 /* AU1200 LCD controller device driver */
1550
1551 static int au1200fb_drv_probe(struct platform_device *dev)
1552 {
1553 struct au1200fb_device *fbdev;
1554 unsigned long page;
1555 int bpp, plane, ret;
1556
1557 if (!dev)
1558 return -EINVAL;
1559
1560 for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane) {
1561 bpp = winbpp(win->w[plane].mode_winctrl1);
1562 if (win->w[plane].xres == 0)
1563 win->w[plane].xres = panel->Xres;
1564 if (win->w[plane].yres == 0)
1565 win->w[plane].yres = panel->Yres;
1566
1567 fbdev = &_au1200fb_devices[plane];
1568 memset(fbdev, 0, sizeof(struct au1200fb_device));
1569 fbdev->plane = plane;
1570
1571 /* Allocate the framebuffer to the maximum screen size */
1572 fbdev->fb_len = (win->w[plane].xres * win->w[plane].yres * bpp) / 8;
1573
1574 fbdev->fb_mem = dma_alloc_noncoherent(&dev->dev,
1575 PAGE_ALIGN(fbdev->fb_len),
1576 &fbdev->fb_phys, GFP_KERNEL);
1577 if (!fbdev->fb_mem) {
1578 print_err("fail to allocate frambuffer (size: %dK))",
1579 fbdev->fb_len / 1024);
1580 return -ENOMEM;
1581 }
1582
1583 /*
1584 * Set page reserved so that mmap will work. This is necessary
1585 * since we'll be remapping normal memory.
1586 */
1587 for (page = (unsigned long)fbdev->fb_phys;
1588 page < PAGE_ALIGN((unsigned long)fbdev->fb_phys +
1589 fbdev->fb_len);
1590 page += PAGE_SIZE) {
1591 SetPageReserved(pfn_to_page(page >> PAGE_SHIFT)); /* LCD DMA is NOT coherent on Au1200 */
1592 }
1593 print_dbg("Framebuffer memory map at %p", fbdev->fb_mem);
1594 print_dbg("phys=0x%08x, size=%dK", fbdev->fb_phys, fbdev->fb_len / 1024);
1595
1596 /* Init FB data */
1597 if ((ret = au1200fb_init_fbinfo(fbdev)) < 0)
1598 goto failed;
1599
1600 /* Register new framebuffer */
1601 if ((ret = register_framebuffer(&fbdev->fb_info)) < 0) {
1602 print_err("cannot register new framebuffer");
1603 goto failed;
1604 }
1605
1606 au1200fb_fb_set_par(&fbdev->fb_info);
1607
1608 #if !defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_LOGO)
1609 if (plane == 0)
1610 if (fb_prepare_logo(&fbdev->fb_info, FB_ROTATE_UR)) {
1611 /* Start display and show logo on boot */
1612 fb_set_cmap(&fbdev->fb_info.cmap,
1613 &fbdev->fb_info);
1614
1615 fb_show_logo(&fbdev->fb_info, FB_ROTATE_UR);
1616 }
1617 #endif
1618 }
1619
1620 /* Now hook interrupt too */
1621 if ((ret = request_irq(AU1200_LCD_INT, au1200fb_handle_irq,
1622 IRQF_DISABLED | IRQF_SHARED, "lcd", (void *)dev)) < 0) {
1623 print_err("fail to request interrupt line %d (err: %d)",
1624 AU1200_LCD_INT, ret);
1625 goto failed;
1626 }
1627
1628 return 0;
1629
1630 failed:
1631 /* NOTE: This only does the current plane/window that failed; others are still active */
1632 if (fbdev->fb_mem)
1633 dma_free_noncoherent(dev, PAGE_ALIGN(fbdev->fb_len),
1634 fbdev->fb_mem, fbdev->fb_phys);
1635 if (fbdev->fb_info.cmap.len != 0)
1636 fb_dealloc_cmap(&fbdev->fb_info.cmap);
1637 if (fbdev->fb_info.pseudo_palette)
1638 kfree(fbdev->fb_info.pseudo_palette);
1639 if (plane == 0)
1640 free_irq(AU1200_LCD_INT, (void*)dev);
1641 return ret;
1642 }
1643
1644 static int au1200fb_drv_remove(struct platform_device *dev)
1645 {
1646 struct au1200fb_device *fbdev;
1647 int plane;
1648
1649 if (!dev)
1650 return -ENODEV;
1651
1652 /* Turn off the panel */
1653 au1200_setpanel(NULL);
1654
1655 for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane)
1656 {
1657 fbdev = &_au1200fb_devices[plane];
1658
1659 /* Clean up all probe data */
1660 unregister_framebuffer(&fbdev->fb_info);
1661 if (fbdev->fb_mem)
1662 dma_free_noncoherent(&dev->dev,
1663 PAGE_ALIGN(fbdev->fb_len),
1664 fbdev->fb_mem, fbdev->fb_phys);
1665 if (fbdev->fb_info.cmap.len != 0)
1666 fb_dealloc_cmap(&fbdev->fb_info.cmap);
1667 if (fbdev->fb_info.pseudo_palette)
1668 kfree(fbdev->fb_info.pseudo_palette);
1669 }
1670
1671 free_irq(AU1200_LCD_INT, (void *)dev);
1672
1673 return 0;
1674 }
1675
1676 #ifdef CONFIG_PM
1677 static int au1200fb_drv_suspend(struct platform_device *dev, u32 state)
1678 {
1679 /* TODO */
1680 return 0;
1681 }
1682
1683 static int au1200fb_drv_resume(struct platform_device *dev)
1684 {
1685 /* TODO */
1686 return 0;
1687 }
1688 #endif /* CONFIG_PM */
1689
1690 static struct platform_driver au1200fb_driver = {
1691 .driver = {
1692 .name = "au1200-lcd",
1693 .owner = THIS_MODULE,
1694 },
1695 .probe = au1200fb_drv_probe,
1696 .remove = au1200fb_drv_remove,
1697 #ifdef CONFIG_PM
1698 .suspend = au1200fb_drv_suspend,
1699 .resume = au1200fb_drv_resume,
1700 #endif
1701 };
1702
1703 /*-------------------------------------------------------------------------*/
1704
1705 /* Kernel driver */
1706
1707 static void au1200fb_setup(void)
1708 {
1709 char* options = NULL;
1710 char* this_opt;
1711 int num_panels = ARRAY_SIZE(known_lcd_panels);
1712 int panel_idx = -1;
1713
1714 fb_get_options(DRIVER_NAME, &options);
1715
1716 if (options) {
1717 while ((this_opt = strsep(&options,",")) != NULL) {
1718 /* Panel option - can be panel name,
1719 * "bs" for board-switch, or number/index */
1720 if (!strncmp(this_opt, "panel:", 6)) {
1721 int i;
1722 long int li;
1723 char *endptr;
1724 this_opt += 6;
1725 /* First check for index, which allows
1726 * to short circuit this mess */
1727 li = simple_strtol(this_opt, &endptr, 0);
1728 if (*endptr == '\0') {
1729 panel_idx = (int)li;
1730 }
1731 else if (strcmp(this_opt, "bs") == 0) {
1732 extern int board_au1200fb_panel(void);
1733 panel_idx = board_au1200fb_panel();
1734 }
1735
1736 else
1737 for (i = 0; i < num_panels; i++) {
1738 if (!strcmp(this_opt, known_lcd_panels[i].name)) {
1739 panel_idx = i;
1740 break;
1741 }
1742 }
1743
1744 if ((panel_idx < 0) || (panel_idx >= num_panels)) {
1745 print_warn("Panel %s not supported!", this_opt);
1746 }
1747 else
1748 panel_index = panel_idx;
1749 }
1750
1751 else if (strncmp(this_opt, "nohwcursor", 10) == 0) {
1752 nohwcursor = 1;
1753 }
1754
1755 /* Unsupported option */
1756 else {
1757 print_warn("Unsupported option \"%s\"", this_opt);
1758 }
1759 }
1760 }
1761 }
1762
1763 #ifdef CONFIG_PM
1764 static int au1200fb_pm_callback(au1xxx_power_dev_t *dev,
1765 au1xxx_request_t request, void *data) {
1766 int retval = -1;
1767 unsigned int d = 0;
1768 unsigned int brightness = 0;
1769
1770 if (request == AU1XXX_PM_SLEEP) {
1771 board_au1200fb_panel_shutdown();
1772 }
1773 else if (request == AU1XXX_PM_WAKEUP) {
1774 if(dev->prev_state == SLEEP_STATE)
1775 {
1776 int plane;
1777 au1200_setpanel(panel);
1778 for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane) {
1779 struct au1200fb_device *fbdev;
1780 fbdev = &_au1200fb_devices[plane];
1781 au1200fb_fb_set_par(&fbdev->fb_info);
1782 }
1783 }
1784
1785 d = *((unsigned int*)data);
1786 if(d <=10) brightness = 26;
1787 else if(d<=20) brightness = 51;
1788 else if(d<=30) brightness = 77;
1789 else if(d<=40) brightness = 102;
1790 else if(d<=50) brightness = 128;
1791 else if(d<=60) brightness = 153;
1792 else if(d<=70) brightness = 179;
1793 else if(d<=80) brightness = 204;
1794 else if(d<=90) brightness = 230;
1795 else brightness = 255;
1796 set_brightness(brightness);
1797 } else if (request == AU1XXX_PM_GETSTATUS) {
1798 return dev->cur_state;
1799 } else if (request == AU1XXX_PM_ACCESS) {
1800 if (dev->cur_state != SLEEP_STATE)
1801 return retval;
1802 else {
1803 au1200_setpanel(panel);
1804 }
1805 } else if (request == AU1XXX_PM_IDLE) {
1806 } else if (request == AU1XXX_PM_CLEANUP) {
1807 }
1808
1809 return retval;
1810 }
1811 #endif
1812
1813 static int __init au1200fb_init(void)
1814 {
1815 print_info("" DRIVER_DESC "");
1816
1817 /* Setup driver with options */
1818 au1200fb_setup();
1819
1820 /* Point to the panel selected */
1821 panel = &known_lcd_panels[panel_index];
1822 win = &windows[window_index];
1823
1824 printk(DRIVER_NAME ": Panel %d %s\n", panel_index, panel->name);
1825 printk(DRIVER_NAME ": Win %d %s\n", window_index, win->name);
1826
1827 /* Kickstart the panel, the framebuffers/windows come soon enough */
1828 au1200_setpanel(panel);
1829
1830 #ifdef CONFIG_PM
1831 LCD_pm_dev = new_au1xxx_power_device("LCD", &au1200fb_pm_callback, NULL);
1832 if ( LCD_pm_dev == NULL)
1833 printk(KERN_INFO "Unable to create a power management device entry for the au1200fb.\n");
1834 else
1835 printk(KERN_INFO "Power management device entry for the au1200fb loaded.\n");
1836 #endif
1837
1838 return platform_driver_register(&au1200fb_driver);
1839 }
1840
1841 static void __exit au1200fb_cleanup(void)
1842 {
1843 platform_driver_unregister(&au1200fb_driver);
1844 }
1845
1846 module_init(au1200fb_init);
1847 module_exit(au1200fb_cleanup);
1848
1849 MODULE_DESCRIPTION(DRIVER_DESC);
1850 MODULE_LICENSE("GPL");
Tomato firmware and modifications.