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
45 #include <asm/mach-au1x00/au1000.h>
46 #include "au1200fb.h"
47
48 #ifdef CONFIG_PM
49 #include <asm/mach-au1x00/au1xxx_pm.h>
50 #endif
51
52 #ifndef CONFIG_FB_AU1200_DEVS
53 #define CONFIG_FB_AU1200_DEVS 4
54 #endif
55
56 #define DRIVER_NAME "au1200fb"
57 #define DRIVER_DESC "LCD controller driver for AU1200 processors"
58
59 #define DEBUG 1
60
61 #define print_err(f, arg...) printk(KERN_ERR DRIVER_NAME ": " f "\n", ## arg)
62 #define print_warn(f, arg...) printk(KERN_WARNING DRIVER_NAME ": " f "\n", ## arg)
63 #define print_info(f, arg...) printk(KERN_INFO DRIVER_NAME ": " f "\n", ## arg)
64
65 #if DEBUG
66 #define print_dbg(f, arg...) printk(KERN_DEBUG __FILE__ ": " f "\n", ## arg)
67 #else
68 #define print_dbg(f, arg...) do {} while (0)
69 #endif
70
71
72 #define AU1200_LCD_FB_IOCTL 0x46FF
73
74 #define AU1200_LCD_SET_SCREEN 1
75 #define AU1200_LCD_GET_SCREEN 2
76 #define AU1200_LCD_SET_WINDOW 3
77 #define AU1200_LCD_GET_WINDOW 4
78 #define AU1200_LCD_SET_PANEL 5
79 #define AU1200_LCD_GET_PANEL 6
80
81 #define SCREEN_SIZE (1<< 1)
82 #define SCREEN_BACKCOLOR (1<< 2)
83 #define SCREEN_BRIGHTNESS (1<< 3)
84 #define SCREEN_COLORKEY (1<< 4)
85 #define SCREEN_MASK (1<< 5)
86
87 struct au1200_lcd_global_regs_t {
88 unsigned int flags;
89 unsigned int xsize;
90 unsigned int ysize;
91 unsigned int backcolor;
92 unsigned int brightness;
93 unsigned int colorkey;
94 unsigned int mask;
95 unsigned int panel_choice;
96 char panel_desc[80];
97
98 };
99
100 #define WIN_POSITION (1<< 0)
101 #define WIN_ALPHA_COLOR (1<< 1)
102 #define WIN_ALPHA_MODE (1<< 2)
103 #define WIN_PRIORITY (1<< 3)
104 #define WIN_CHANNEL (1<< 4)
105 #define WIN_BUFFER_FORMAT (1<< 5)
106 #define WIN_COLOR_ORDER (1<< 6)
107 #define WIN_PIXEL_ORDER (1<< 7)
108 #define WIN_SIZE (1<< 8)
109 #define WIN_COLORKEY_MODE (1<< 9)
110 #define WIN_DOUBLE_BUFFER_MODE (1<< 10)
111 #define WIN_RAM_ARRAY_MODE (1<< 11)
112 #define WIN_BUFFER_SCALE (1<< 12)
113 #define WIN_ENABLE (1<< 13)
114
115 struct au1200_lcd_window_regs_t {
116 unsigned int flags;
117 unsigned int xpos;
118 unsigned int ypos;
119 unsigned int alpha_color;
120 unsigned int alpha_mode;
121 unsigned int priority;
122 unsigned int channel;
123 unsigned int buffer_format;
124 unsigned int color_order;
125 unsigned int pixel_order;
126 unsigned int xsize;
127 unsigned int ysize;
128 unsigned int colorkey_mode;
129 unsigned int double_buffer_mode;
130 unsigned int ram_array_mode;
131 unsigned int xscale;
132 unsigned int yscale;
133 unsigned int enable;
134 };
135
136
137 struct au1200_lcd_iodata_t {
138 unsigned int subcmd;
139 struct au1200_lcd_global_regs_t global;
140 struct au1200_lcd_window_regs_t window;
141 };
142
143 #if defined(__BIG_ENDIAN)
144 #define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_11
145 #else
146 #define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_00
147 #endif
148 #define LCD_CONTROL_DEFAULT_SBPPF LCD_CONTROL_SBPPF_565
149
150 /* Private, per-framebuffer management information (independent of the panel itself) */
151 struct au1200fb_device {
152 struct fb_info fb_info; /* FB driver info record */
153
154 int plane;
155 unsigned char* fb_mem; /* FrameBuffer memory map */
156 unsigned int fb_len;
157 dma_addr_t fb_phys;
158 };
159
160 static struct au1200fb_device _au1200fb_devices[CONFIG_FB_AU1200_DEVS];
161 /********************************************************************/
162
163 /* LCD controller restrictions */
164 #define AU1200_LCD_MAX_XRES 1280
165 #define AU1200_LCD_MAX_YRES 1024
166 #define AU1200_LCD_MAX_BPP 32
167 #define AU1200_LCD_MAX_CLK 96000000 /* fixme: this needs to go away ? */
168 #define AU1200_LCD_NBR_PALETTE_ENTRIES 256
169
170 /* Default number of visible screen buffer to allocate */
171 #define AU1200FB_NBR_VIDEO_BUFFERS 1
172
173 /********************************************************************/
174
175 static struct au1200_lcd *lcd = (struct au1200_lcd *) AU1200_LCD_ADDR;
176 static int window_index = 2; /* default is zero */
177 static int panel_index = 2; /* default is zero */
178 static struct window_settings *win;
179 static struct panel_settings *panel;
180 static int noblanking = 1;
181 static int nohwcursor = 0;
182
183 struct window_settings {
184 unsigned char name[64];
185 uint32 mode_backcolor;
186 uint32 mode_colorkey;
187 uint32 mode_colorkeymsk;
188 struct {
189 int xres;
190 int yres;
191 int xpos;
192 int ypos;
193 uint32 mode_winctrl1; /* winctrl1[FRM,CCO,PO,PIPE] */
194 uint32 mode_winenable;
195 } w[4];
196 };
197
198 #if defined(__BIG_ENDIAN)
199 #define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_00
200 #else
201 #define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_01
202 #endif
203
204 extern int board_au1200fb_panel_init (void);
205 extern int board_au1200fb_panel_shutdown (void);
206
207 #ifdef CONFIG_PM
208 int au1200fb_pm_callback(au1xxx_power_dev_t *dev,
209 au1xxx_request_t request, void *data);
210 au1xxx_power_dev_t *LCD_pm_dev;
211 #endif
212
213 /*
214 * Default window configurations
215 */
216 static struct window_settings windows[] = {
217 { /* Index 0 */
218 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
219 /* mode_backcolor */ 0x006600ff,
220 /* mode_colorkey,msk*/ 0, 0,
221 {
222 {
223 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
224 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
225 LCD_WINCTRL1_PO_16BPP,
226 /* mode_winenable*/ LCD_WINENABLE_WEN0,
227 },
228 {
229 /* xres, yres, xpos, ypos */ 100, 100, 100, 100,
230 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
231 LCD_WINCTRL1_PO_16BPP |
232 LCD_WINCTRL1_PIPE,
233 /* mode_winenable*/ LCD_WINENABLE_WEN1,
234 },
235 {
236 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
237 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
238 LCD_WINCTRL1_PO_16BPP,
239 /* mode_winenable*/ 0,
240 },
241 {
242 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
243 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
244 LCD_WINCTRL1_PO_16BPP |
245 LCD_WINCTRL1_PIPE,
246 /* mode_winenable*/ 0,
247 },
248 },
249 },
250
251 { /* Index 1 */
252 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
253 /* mode_backcolor */ 0x006600ff,
254 /* mode_colorkey,msk*/ 0, 0,
255 {
256 {
257 /* xres, yres, xpos, ypos */ 320, 240, 5, 5,
258 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_24BPP |
259 LCD_WINCTRL1_PO_00,
260 /* mode_winenable*/ LCD_WINENABLE_WEN0,
261 },
262 {
263 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
264 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565
265 | LCD_WINCTRL1_PO_16BPP,
266 /* mode_winenable*/ 0,
267 },
268 {
269 /* xres, yres, xpos, ypos */ 100, 100, 0, 0,
270 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
271 LCD_WINCTRL1_PO_16BPP |
272 LCD_WINCTRL1_PIPE,
273 /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/,
274 },
275 {
276 /* xres, yres, xpos, ypos */ 200, 25, 0, 0,
277 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
278 LCD_WINCTRL1_PO_16BPP |
279 LCD_WINCTRL1_PIPE,
280 /* mode_winenable*/ 0,
281 },
282 },
283 },
284 { /* Index 2 */
285 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
286 /* mode_backcolor */ 0x006600ff,
287 /* mode_colorkey,msk*/ 0, 0,
288 {
289 {
290 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
291 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
292 LCD_WINCTRL1_PO_16BPP,
293 /* mode_winenable*/ LCD_WINENABLE_WEN0,
294 },
295 {
296 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
297 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
298 LCD_WINCTRL1_PO_16BPP,
299 /* mode_winenable*/ 0,
300 },
301 {
302 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
303 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_32BPP |
304 LCD_WINCTRL1_PO_00|LCD_WINCTRL1_PIPE,
305 /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/,
306 },
307 {
308 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
309 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
310 LCD_WINCTRL1_PO_16BPP |
311 LCD_WINCTRL1_PIPE,
312 /* mode_winenable*/ 0,
313 },
314 },
315 },
316 /* Need VGA 640 @ 24bpp, @ 32bpp */
317 /* Need VGA 800 @ 24bpp, @ 32bpp */
318 /* Need VGA 1024 @ 24bpp, @ 32bpp */
319 };
320
321 /*
322 * Controller configurations for various panels.
323 */
324
325 struct panel_settings
326 {
327 const char name[25]; /* Full name <vendor>_<model> */
328
329 struct fb_monspecs monspecs; /* FB monitor specs */
330
331 /* panel timings */
332 uint32 mode_screen;
333 uint32 mode_horztiming;
334 uint32 mode_verttiming;
335 uint32 mode_clkcontrol;
336 uint32 mode_pwmdiv;
337 uint32 mode_pwmhi;
338 uint32 mode_outmask;
339 uint32 mode_fifoctrl;
340 uint32 mode_toyclksrc;
341 uint32 mode_backlight;
342 uint32 mode_auxpll;
343 int (*device_init)(void);
344 int (*device_shutdown)(void);
345 #define Xres min_xres
346 #define Yres min_yres
347 u32 min_xres; /* Minimum horizontal resolution */
348 u32 max_xres; /* Maximum horizontal resolution */
349 u32 min_yres; /* Minimum vertical resolution */
350 u32 max_yres; /* Maximum vertical resolution */
351 };
352
353 /********************************************************************/
354 /* fixme: Maybe a modedb for the CRT ? otherwise panels should be as-is */
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
set_brightness(unsigned int brightness)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
winbpp(unsigned int winctrl1)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
fbinfo2index(struct fb_info * fb_info)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
au1200_setlocation(struct au1200fb_device * fbdev,int plane,int xpos,int ypos)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 /* fixme: fb_offset += ((0-ypos)*fb_pars[plane].line_length); */
762 ypos = 0;
763 /*printk("off screen top\n");*/
764 }
765
766 /* record settings */
767 win->w[plane].xpos = xpos;
768 win->w[plane].ypos = ypos;
769
770 xsz -= 1;
771 ysz -= 1;
772 winctrl0 |= (xpos << 21);
773 winctrl0 |= (ypos << 10);
774 winctrl1 |= (xsz << 11);
775 winctrl1 |= (ysz << 0);
776
777 /* Disable the window while making changes, then restore WINEN */
778 winenable = lcd->winenable & (1 << plane);
779 au_sync();
780 lcd->winenable &= ~(1 << plane);
781 lcd->window[plane].winctrl0 = winctrl0;
782 lcd->window[plane].winctrl1 = winctrl1;
783 lcd->window[plane].winbuf0 =
784 lcd->window[plane].winbuf1 = fbdev->fb_phys;
785 lcd->window[plane].winbufctrl = 0; /* select winbuf0 */
786 lcd->winenable |= winenable;
787 au_sync();
788
789 return 0;
790 }
791
au1200_setpanel(struct panel_settings * newpanel)792 static void au1200_setpanel (struct panel_settings *newpanel)
793 {
794 /*
795 * Perform global setup/init of LCD controller
796 */
797 uint32 winenable;
798
799 /* Make sure all windows disabled */
800 winenable = lcd->winenable;
801 lcd->winenable = 0;
802 au_sync();
803 /*
804 * Ensure everything is disabled before reconfiguring
805 */
806 if (lcd->screen & LCD_SCREEN_SEN) {
807 /* Wait for vertical sync period */
808 lcd->intstatus = LCD_INT_SS;
809 while ((lcd->intstatus & LCD_INT_SS) == 0) {
810 au_sync();
811 }
812
813 lcd->screen &= ~LCD_SCREEN_SEN; /*disable the controller*/
814
815 do {
816 lcd->intstatus = lcd->intstatus; /*clear interrupts*/
817 au_sync();
818 /*wait for controller to shut down*/
819 } while ((lcd->intstatus & LCD_INT_SD) == 0);
820
821 /* Call shutdown of current panel (if up) */
822 /* this must occur last, because if an external clock is driving
823 the controller, the clock cannot be turned off before first
824 shutting down the controller.
825 */
826 if (panel->device_shutdown != NULL)
827 panel->device_shutdown();
828 }
829
830 /* Newpanel == NULL indicates a shutdown operation only */
831 if (newpanel == NULL)
832 return;
833
834 panel = newpanel;
835
836 printk("Panel(%s), %dx%d\n", panel->name, panel->Xres, panel->Yres);
837
838 /*
839 * Setup clocking if internal LCD clock source (assumes sys_auxpll valid)
840 */
841 if (!(panel->mode_clkcontrol & LCD_CLKCONTROL_EXT))
842 {
843 uint32 sys_clksrc;
844 au_writel(panel->mode_auxpll, SYS_AUXPLL);
845 sys_clksrc = au_readl(SYS_CLKSRC) & ~0x0000001f;
846 sys_clksrc |= panel->mode_toyclksrc;
847 au_writel(sys_clksrc, SYS_CLKSRC);
848 }
849
850 /*
851 * Configure panel timings
852 */
853 lcd->screen = panel->mode_screen;
854 lcd->horztiming = panel->mode_horztiming;
855 lcd->verttiming = panel->mode_verttiming;
856 lcd->clkcontrol = panel->mode_clkcontrol;
857 lcd->pwmdiv = panel->mode_pwmdiv;
858 lcd->pwmhi = panel->mode_pwmhi;
859 lcd->outmask = panel->mode_outmask;
860 lcd->fifoctrl = panel->mode_fifoctrl;
861 au_sync();
862
863 /* fixme: Check window settings to make sure still valid
864 * for new geometry */
865 #if 0
866 au1200_setlocation(fbdev, 0, win->w[0].xpos, win->w[0].ypos);
867 au1200_setlocation(fbdev, 1, win->w[1].xpos, win->w[1].ypos);
868 au1200_setlocation(fbdev, 2, win->w[2].xpos, win->w[2].ypos);
869 au1200_setlocation(fbdev, 3, win->w[3].xpos, win->w[3].ypos);
870 #endif
871 lcd->winenable = winenable;
872
873 /*
874 * Re-enable screen now that it is configured
875 */
876 lcd->screen |= LCD_SCREEN_SEN;
877 au_sync();
878
879 /* Call init of panel */
880 if (panel->device_init != NULL) panel->device_init();
881
882 /* FIX!!!! not appropriate on panel change!!! Global setup/init */
883 lcd->intenable = 0;
884 lcd->intstatus = ~0;
885 lcd->backcolor = win->mode_backcolor;
886
887 /* Setup Color Key - FIX!!! */
888 lcd->colorkey = win->mode_colorkey;
889 lcd->colorkeymsk = win->mode_colorkeymsk;
890
891 /* Setup HWCursor - FIX!!! Need to support this eventually */
892 lcd->hwc.cursorctrl = 0;
893 lcd->hwc.cursorpos = 0;
894 lcd->hwc.cursorcolor0 = 0;
895 lcd->hwc.cursorcolor1 = 0;
896 lcd->hwc.cursorcolor2 = 0;
897 lcd->hwc.cursorcolor3 = 0;
898
899
900 #if 0
901 #define D(X) printk("%25s: %08X\n", #X, X)
902 D(lcd->screen);
903 D(lcd->horztiming);
904 D(lcd->verttiming);
905 D(lcd->clkcontrol);
906 D(lcd->pwmdiv);
907 D(lcd->pwmhi);
908 D(lcd->outmask);
909 D(lcd->fifoctrl);
910 D(lcd->window[0].winctrl0);
911 D(lcd->window[0].winctrl1);
912 D(lcd->window[0].winctrl2);
913 D(lcd->window[0].winbuf0);
914 D(lcd->window[0].winbuf1);
915 D(lcd->window[0].winbufctrl);
916 D(lcd->window[1].winctrl0);
917 D(lcd->window[1].winctrl1);
918 D(lcd->window[1].winctrl2);
919 D(lcd->window[1].winbuf0);
920 D(lcd->window[1].winbuf1);
921 D(lcd->window[1].winbufctrl);
922 D(lcd->window[2].winctrl0);
923 D(lcd->window[2].winctrl1);
924 D(lcd->window[2].winctrl2);
925 D(lcd->window[2].winbuf0);
926 D(lcd->window[2].winbuf1);
927 D(lcd->window[2].winbufctrl);
928 D(lcd->window[3].winctrl0);
929 D(lcd->window[3].winctrl1);
930 D(lcd->window[3].winctrl2);
931 D(lcd->window[3].winbuf0);
932 D(lcd->window[3].winbuf1);
933 D(lcd->window[3].winbufctrl);
934 D(lcd->winenable);
935 D(lcd->intenable);
936 D(lcd->intstatus);
937 D(lcd->backcolor);
938 D(lcd->winenable);
939 D(lcd->colorkey);
940 D(lcd->colorkeymsk);
941 D(lcd->hwc.cursorctrl);
942 D(lcd->hwc.cursorpos);
943 D(lcd->hwc.cursorcolor0);
944 D(lcd->hwc.cursorcolor1);
945 D(lcd->hwc.cursorcolor2);
946 D(lcd->hwc.cursorcolor3);
947 #endif
948 }
949
au1200_setmode(struct au1200fb_device * fbdev)950 static void au1200_setmode(struct au1200fb_device *fbdev)
951 {
952 int plane = fbdev->plane;
953 /* Window/plane setup */
954 lcd->window[plane].winctrl1 = ( 0
955 | LCD_WINCTRL1_PRI_N(plane)
956 | win->w[plane].mode_winctrl1 /* FRM,CCO,PO,PIPE */
957 ) ;
958
959 au1200_setlocation(fbdev, plane, win->w[plane].xpos, win->w[plane].ypos);
960
961 lcd->window[plane].winctrl2 = ( 0
962 | LCD_WINCTRL2_CKMODE_00
963 | LCD_WINCTRL2_DBM
964 | LCD_WINCTRL2_BX_N( fbdev->fb_info.fix.line_length)
965 | LCD_WINCTRL2_SCX_1
966 | LCD_WINCTRL2_SCY_1
967 ) ;
968 lcd->winenable |= win->w[plane].mode_winenable;
969 au_sync();
970 }
971
972
973 /* Inline helpers */
974
975 /*#define panel_is_dual(panel) ((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/
976 /*#define panel_is_active(panel)((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/
977
978 #define panel_is_color(panel) ((panel->mode_screen & LCD_SCREEN_PT) <= LCD_SCREEN_PT_CDSTN)
979
980 /* Bitfields format supported by the controller. */
981 static struct fb_bitfield rgb_bitfields[][4] = {
982 /* Red, Green, Blue, Transp */
983 [LCD_WINCTRL1_FRM_16BPP655 >> 25] =
984 { { 10, 6, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
985
986 [LCD_WINCTRL1_FRM_16BPP565 >> 25] =
987 { { 11, 5, 0 }, { 5, 6, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
988
989 [LCD_WINCTRL1_FRM_16BPP556 >> 25] =
990 { { 11, 5, 0 }, { 6, 5, 0 }, { 0, 6, 0 }, { 0, 0, 0 } },
991
992 [LCD_WINCTRL1_FRM_16BPPI1555 >> 25] =
993 { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
994
995 [LCD_WINCTRL1_FRM_16BPPI5551 >> 25] =
996 { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 0, 0 } },
997
998 [LCD_WINCTRL1_FRM_16BPPA1555 >> 25] =
999 { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 15, 1, 0 } },
1000
1001 [LCD_WINCTRL1_FRM_16BPPA5551 >> 25] =
1002 { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 1, 0 } },
1003
1004 [LCD_WINCTRL1_FRM_24BPP >> 25] =
1005 { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 0, 0, 0 } },
1006
1007 [LCD_WINCTRL1_FRM_32BPP >> 25] =
1008 { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 24, 0, 0 } },
1009 };
1010
1011 /*-------------------------------------------------------------------------*/
1012
1013 /* Helpers */
1014
au1200fb_update_fbinfo(struct fb_info * fbi)1015 static void au1200fb_update_fbinfo(struct fb_info *fbi)
1016 {
1017 /* FIX!!!! This also needs to take the window pixel format into account!!! */
1018
1019 /* Update var-dependent FB info */
1020 if (panel_is_color(panel)) {
1021 if (fbi->var.bits_per_pixel <= 8) {
1022 /* palettized */
1023 fbi->fix.visual = FB_VISUAL_PSEUDOCOLOR;
1024 fbi->fix.line_length = fbi->var.xres_virtual /
1025 (8/fbi->var.bits_per_pixel);
1026 } else {
1027 /* non-palettized */
1028 fbi->fix.visual = FB_VISUAL_TRUECOLOR;
1029 fbi->fix.line_length = fbi->var.xres_virtual * (fbi->var.bits_per_pixel / 8);
1030 }
1031 } else {
1032 /* mono FIX!!! mono 8 and 4 bits */
1033 fbi->fix.visual = FB_VISUAL_MONO10;
1034 fbi->fix.line_length = fbi->var.xres_virtual / 8;
1035 }
1036
1037 fbi->screen_size = fbi->fix.line_length * fbi->var.yres_virtual;
1038 print_dbg("line length: %d\n", fbi->fix.line_length);
1039 print_dbg("bits_per_pixel: %d\n", fbi->var.bits_per_pixel);
1040 }
1041
1042 /*-------------------------------------------------------------------------*/
1043
1044 /* AU1200 framebuffer driver */
1045
1046 /* fb_check_var
1047 * Validate var settings with hardware restrictions and modify it if necessary
1048 */
au1200fb_fb_check_var(struct fb_var_screeninfo * var,struct fb_info * fbi)1049 static int au1200fb_fb_check_var(struct fb_var_screeninfo *var,
1050 struct fb_info *fbi)
1051 {
1052 struct au1200fb_device *fbdev = (struct au1200fb_device *)fbi;
1053 u32 pixclock;
1054 int screen_size, plane;
1055
1056 plane = fbdev->plane;
1057
1058 /* Make sure that the mode respect all LCD controller and
1059 * panel restrictions. */
1060 var->xres = win->w[plane].xres;
1061 var->yres = win->w[plane].yres;
1062
1063 /* No need for virtual resolution support */
1064 var->xres_virtual = var->xres;
1065 var->yres_virtual = var->yres;
1066
1067 var->bits_per_pixel = winbpp(win->w[plane].mode_winctrl1);
1068
1069 screen_size = var->xres_virtual * var->yres_virtual;
1070 if (var->bits_per_pixel > 8) screen_size *= (var->bits_per_pixel / 8);
1071 else screen_size /= (8/var->bits_per_pixel);
1072
1073 if (fbdev->fb_len < screen_size)
1074 return -EINVAL; /* Virtual screen is to big, abort */
1075
1076 /* FIX!!!! what are the implicaitons of ignoring this for windows ??? */
1077 /* The max LCD clock is fixed to 48MHz (value of AUX_CLK). The pixel
1078 * clock can only be obtain by dividing this value by an even integer.
1079 * Fallback to a slower pixel clock if necessary. */
1080 pixclock = max((u32)(PICOS2KHZ(var->pixclock) * 1000), fbi->monspecs.dclkmin);
1081 pixclock = min(pixclock, min(fbi->monspecs.dclkmax, (u32)AU1200_LCD_MAX_CLK/2));
1082
1083 if (AU1200_LCD_MAX_CLK % pixclock) {
1084 int diff = AU1200_LCD_MAX_CLK % pixclock;
1085 pixclock -= diff;
1086 }
1087
1088 var->pixclock = KHZ2PICOS(pixclock/1000);
1089 #if 0
1090 if (!panel_is_active(panel)) {
1091 int pcd = AU1200_LCD_MAX_CLK / (pixclock * 2) - 1;
1092
1093 if (!panel_is_color(panel)
1094 && (panel->control_base & LCD_CONTROL_MPI) && (pcd < 3)) {
1095 /* STN 8bit mono panel support is up to 6MHz pixclock */
1096 var->pixclock = KHZ2PICOS(6000);
1097 } else if (!pcd) {
1098 /* Other STN panel support is up to 12MHz */
1099 var->pixclock = KHZ2PICOS(12000);
1100 }
1101 }
1102 #endif
1103 /* Set bitfield accordingly */
1104 switch (var->bits_per_pixel) {
1105 case 16:
1106 {
1107 /* 16bpp True color.
1108 * These must be set to MATCH WINCTRL[FORM] */
1109 int idx;
1110 idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25;
1111 var->red = rgb_bitfields[idx][0];
1112 var->green = rgb_bitfields[idx][1];
1113 var->blue = rgb_bitfields[idx][2];
1114 var->transp = rgb_bitfields[idx][3];
1115 break;
1116 }
1117
1118 case 32:
1119 {
1120 /* 32bpp True color.
1121 * These must be set to MATCH WINCTRL[FORM] */
1122 int idx;
1123 idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25;
1124 var->red = rgb_bitfields[idx][0];
1125 var->green = rgb_bitfields[idx][1];
1126 var->blue = rgb_bitfields[idx][2];
1127 var->transp = rgb_bitfields[idx][3];
1128 break;
1129 }
1130 default:
1131 print_dbg("Unsupported depth %dbpp", var->bits_per_pixel);
1132 return -EINVAL;
1133 }
1134
1135 return 0;
1136 }
1137
1138 /* fb_set_par
1139 * Set hardware with var settings. This will enable the controller with a
1140 * specific mode, normally validated with the fb_check_var method
1141 */
au1200fb_fb_set_par(struct fb_info * fbi)1142 static int au1200fb_fb_set_par(struct fb_info *fbi)
1143 {
1144 struct au1200fb_device *fbdev = (struct au1200fb_device *)fbi;
1145
1146 au1200fb_update_fbinfo(fbi);
1147 au1200_setmode(fbdev);
1148
1149 return 0;
1150 }
1151
1152 /* fb_setcolreg
1153 * Set color in LCD palette.
1154 */
au1200fb_fb_setcolreg(unsigned regno,unsigned red,unsigned green,unsigned blue,unsigned transp,struct fb_info * fbi)1155 static int au1200fb_fb_setcolreg(unsigned regno, unsigned red, unsigned green,
1156 unsigned blue, unsigned transp, struct fb_info *fbi)
1157 {
1158 volatile u32 *palette = lcd->palette;
1159 u32 value;
1160
1161 if (regno > (AU1200_LCD_NBR_PALETTE_ENTRIES - 1))
1162 return -EINVAL;
1163
1164 if (fbi->var.grayscale) {
1165 /* Convert color to grayscale */
1166 red = green = blue =
1167 (19595 * red + 38470 * green + 7471 * blue) >> 16;
1168 }
1169
1170 if (fbi->fix.visual == FB_VISUAL_TRUECOLOR) {
1171 /* Place color in the pseudopalette */
1172 if (regno > 16)
1173 return -EINVAL;
1174
1175 palette = (u32*) fbi->pseudo_palette;
1176
1177 red >>= (16 - fbi->var.red.length);
1178 green >>= (16 - fbi->var.green.length);
1179 blue >>= (16 - fbi->var.blue.length);
1180
1181 value = (red << fbi->var.red.offset) |
1182 (green << fbi->var.green.offset)|
1183 (blue << fbi->var.blue.offset);
1184 value &= 0xFFFF;
1185
1186 } else if (1 /*FIX!!! panel_is_active(fbdev->panel)*/) {
1187 /* COLOR TFT PALLETTIZED (use RGB 565) */
1188 value = (red & 0xF800)|((green >> 5) &
1189 0x07E0)|((blue >> 11) & 0x001F);
1190 value &= 0xFFFF;
1191
1192 } else if (0 /*panel_is_color(fbdev->panel)*/) {
1193 /* COLOR STN MODE */
1194 value = 0x1234;
1195 value &= 0xFFF;
1196 } else {
1197 /* MONOCHROME MODE */
1198 value = (green >> 12) & 0x000F;
1199 value &= 0xF;
1200 }
1201
1202 palette[regno] = value;
1203
1204 return 0;
1205 }
1206
1207 /* fb_blank
1208 * Blank the screen. Depending on the mode, the screen will be
1209 * activated with the backlight color, or desactivated
1210 */
au1200fb_fb_blank(int blank_mode,struct fb_info * fbi)1211 static int au1200fb_fb_blank(int blank_mode, struct fb_info *fbi)
1212 {
1213 /* Short-circuit screen blanking */
1214 if (noblanking)
1215 return 0;
1216
1217 switch (blank_mode) {
1218
1219 case FB_BLANK_UNBLANK:
1220 case FB_BLANK_NORMAL:
1221 /* printk("turn on panel\n"); */
1222 au1200_setpanel(panel);
1223 break;
1224 case FB_BLANK_VSYNC_SUSPEND:
1225 case FB_BLANK_HSYNC_SUSPEND:
1226 case FB_BLANK_POWERDOWN:
1227 /* printk("turn off panel\n"); */
1228 au1200_setpanel(NULL);
1229 break;
1230 default:
1231 break;
1232
1233 }
1234
1235 /* FB_BLANK_NORMAL is a soft blank */
1236 return (blank_mode == FB_BLANK_NORMAL) ? -EINVAL : 0;
1237 }
1238
1239 /* fb_mmap
1240 * Map video memory in user space. We don't use the generic fb_mmap
1241 * method mainly to allow the use of the TLB streaming flag (CCA=6)
1242 */
au1200fb_fb_mmap(struct fb_info * info,struct vm_area_struct * vma)1243 static int au1200fb_fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
1244
1245 {
1246 unsigned int len;
1247 unsigned long start=0, off;
1248 struct au1200fb_device *fbdev = (struct au1200fb_device *) info;
1249
1250 #ifdef CONFIG_PM
1251 au1xxx_pm_access(LCD_pm_dev);
1252 #endif
1253
1254 if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) {
1255 return -EINVAL;
1256 }
1257
1258 start = fbdev->fb_phys & PAGE_MASK;
1259 len = PAGE_ALIGN((start & ~PAGE_MASK) + fbdev->fb_len);
1260
1261 off = vma->vm_pgoff << PAGE_SHIFT;
1262
1263 if ((vma->vm_end - vma->vm_start + off) > len) {
1264 return -EINVAL;
1265 }
1266
1267 off += start;
1268 vma->vm_pgoff = off >> PAGE_SHIFT;
1269
1270 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
1271 pgprot_val(vma->vm_page_prot) |= _CACHE_MASK; /* CCA=7 */
1272
1273 vma->vm_flags |= VM_IO;
1274
1275 return io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
1276 vma->vm_end - vma->vm_start,
1277 vma->vm_page_prot);
1278
1279 return 0;
1280 }
1281
set_global(u_int cmd,struct au1200_lcd_global_regs_t * pdata)1282 static void set_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata)
1283 {
1284
1285 unsigned int hi1, divider;
1286
1287 /* SCREEN_SIZE: user cannot reset size, must switch panel choice */
1288
1289 if (pdata->flags & SCREEN_BACKCOLOR)
1290 lcd->backcolor = pdata->backcolor;
1291
1292 if (pdata->flags & SCREEN_BRIGHTNESS) {
1293
1294 // limit brightness pwm duty to >= 30/1600
1295 if (pdata->brightness < 30) {
1296 pdata->brightness = 30;
1297 }
1298 divider = (lcd->pwmdiv & 0x3FFFF) + 1;
1299 hi1 = (lcd->pwmhi >> 16) + 1;
1300 hi1 = (((pdata->brightness & 0xFF)+1) * divider >> 8);
1301 lcd->pwmhi &= 0xFFFF;
1302 lcd->pwmhi |= (hi1 << 16);
1303 }
1304
1305 if (pdata->flags & SCREEN_COLORKEY)
1306 lcd->colorkey = pdata->colorkey;
1307
1308 if (pdata->flags & SCREEN_MASK)
1309 lcd->colorkeymsk = pdata->mask;
1310 au_sync();
1311 }
1312
get_global(u_int cmd,struct au1200_lcd_global_regs_t * pdata)1313 static void get_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata)
1314 {
1315 unsigned int hi1, divider;
1316
1317 pdata->xsize = ((lcd->screen & LCD_SCREEN_SX) >> 19) + 1;
1318 pdata->ysize = ((lcd->screen & LCD_SCREEN_SY) >> 8) + 1;
1319
1320 pdata->backcolor = lcd->backcolor;
1321 pdata->colorkey = lcd->colorkey;
1322 pdata->mask = lcd->colorkeymsk;
1323
1324 // brightness
1325 hi1 = (lcd->pwmhi >> 16) + 1;
1326 divider = (lcd->pwmdiv & 0x3FFFF) + 1;
1327 pdata->brightness = ((hi1 << 8) / divider) - 1;
1328 au_sync();
1329 }
1330
set_window(unsigned int plane,struct au1200_lcd_window_regs_t * pdata)1331 static void set_window(unsigned int plane,
1332 struct au1200_lcd_window_regs_t *pdata)
1333 {
1334 unsigned int val, bpp;
1335
1336 /* Window control register 0 */
1337 if (pdata->flags & WIN_POSITION) {
1338 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_OX |
1339 LCD_WINCTRL0_OY);
1340 val |= ((pdata->xpos << 21) & LCD_WINCTRL0_OX);
1341 val |= ((pdata->ypos << 10) & LCD_WINCTRL0_OY);
1342 lcd->window[plane].winctrl0 = val;
1343 }
1344 if (pdata->flags & WIN_ALPHA_COLOR) {
1345 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_A);
1346 val |= ((pdata->alpha_color << 2) & LCD_WINCTRL0_A);
1347 lcd->window[plane].winctrl0 = val;
1348 }
1349 if (pdata->flags & WIN_ALPHA_MODE) {
1350 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_AEN);
1351 val |= ((pdata->alpha_mode << 1) & LCD_WINCTRL0_AEN);
1352 lcd->window[plane].winctrl0 = val;
1353 }
1354
1355 /* Window control register 1 */
1356 if (pdata->flags & WIN_PRIORITY) {
1357 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PRI);
1358 val |= ((pdata->priority << 30) & LCD_WINCTRL1_PRI);
1359 lcd->window[plane].winctrl1 = val;
1360 }
1361 if (pdata->flags & WIN_CHANNEL) {
1362 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PIPE);
1363 val |= ((pdata->channel << 29) & LCD_WINCTRL1_PIPE);
1364 lcd->window[plane].winctrl1 = val;
1365 }
1366 if (pdata->flags & WIN_BUFFER_FORMAT) {
1367 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_FRM);
1368 val |= ((pdata->buffer_format << 25) & LCD_WINCTRL1_FRM);
1369 lcd->window[plane].winctrl1 = val;
1370 }
1371 if (pdata->flags & WIN_COLOR_ORDER) {
1372 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_CCO);
1373 val |= ((pdata->color_order << 24) & LCD_WINCTRL1_CCO);
1374 lcd->window[plane].winctrl1 = val;
1375 }
1376 if (pdata->flags & WIN_PIXEL_ORDER) {
1377 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PO);
1378 val |= ((pdata->pixel_order << 22) & LCD_WINCTRL1_PO);
1379 lcd->window[plane].winctrl1 = val;
1380 }
1381 if (pdata->flags & WIN_SIZE) {
1382 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_SZX |
1383 LCD_WINCTRL1_SZY);
1384 val |= (((pdata->xsize << 11) - 1) & LCD_WINCTRL1_SZX);
1385 val |= (((pdata->ysize) - 1) & LCD_WINCTRL1_SZY);
1386 lcd->window[plane].winctrl1 = val;
1387 /* program buffer line width */
1388 bpp = winbpp(val) / 8;
1389 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_BX);
1390 val |= (((pdata->xsize * bpp) << 8) & LCD_WINCTRL2_BX);
1391 lcd->window[plane].winctrl2 = val;
1392 }
1393
1394 /* Window control register 2 */
1395 if (pdata->flags & WIN_COLORKEY_MODE) {
1396 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_CKMODE);
1397 val |= ((pdata->colorkey_mode << 24) & LCD_WINCTRL2_CKMODE);
1398 lcd->window[plane].winctrl2 = val;
1399 }
1400 if (pdata->flags & WIN_DOUBLE_BUFFER_MODE) {
1401 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_DBM);
1402 val |= ((pdata->double_buffer_mode << 23) & LCD_WINCTRL2_DBM);
1403 lcd->window[plane].winctrl2 = val;
1404 }
1405 if (pdata->flags & WIN_RAM_ARRAY_MODE) {
1406 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_RAM);
1407 val |= ((pdata->ram_array_mode << 21) & LCD_WINCTRL2_RAM);
1408 lcd->window[plane].winctrl2 = val;
1409 }
1410
1411 /* Buffer line width programmed with WIN_SIZE */
1412
1413 if (pdata->flags & WIN_BUFFER_SCALE) {
1414 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_SCX |
1415 LCD_WINCTRL2_SCY);
1416 val |= ((pdata->xsize << 11) & LCD_WINCTRL2_SCX);
1417 val |= ((pdata->ysize) & LCD_WINCTRL2_SCY);
1418 lcd->window[plane].winctrl2 = val;
1419 }
1420
1421 if (pdata->flags & WIN_ENABLE) {
1422 val = lcd->winenable;
1423 val &= ~(1<<plane);
1424 val |= (pdata->enable & 1) << plane;
1425 lcd->winenable = val;
1426 }
1427 au_sync();
1428 }
1429
get_window(unsigned int plane,struct au1200_lcd_window_regs_t * pdata)1430 static void get_window(unsigned int plane,
1431 struct au1200_lcd_window_regs_t *pdata)
1432 {
1433 /* Window control register 0 */
1434 pdata->xpos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OX) >> 21;
1435 pdata->ypos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OY) >> 10;
1436 pdata->alpha_color = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_A) >> 2;
1437 pdata->alpha_mode = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_AEN) >> 1;
1438
1439 /* Window control register 1 */
1440 pdata->priority = (lcd->window[plane].winctrl1& LCD_WINCTRL1_PRI) >> 30;
1441 pdata->channel = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PIPE) >> 29;
1442 pdata->buffer_format = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_FRM) >> 25;
1443 pdata->color_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_CCO) >> 24;
1444 pdata->pixel_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PO) >> 22;
1445 pdata->xsize = ((lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZX) >> 11) + 1;
1446 pdata->ysize = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZY) + 1;
1447
1448 /* Window control register 2 */
1449 pdata->colorkey_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_CKMODE) >> 24;
1450 pdata->double_buffer_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_DBM) >> 23;
1451 pdata->ram_array_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_RAM) >> 21;
1452
1453 pdata->enable = (lcd->winenable >> plane) & 1;
1454 au_sync();
1455 }
1456
au1200fb_ioctl(struct fb_info * info,unsigned int cmd,unsigned long arg)1457 static int au1200fb_ioctl(struct fb_info *info, unsigned int cmd,
1458 unsigned long arg)
1459 {
1460 int plane;
1461 int val;
1462
1463 #ifdef CONFIG_PM
1464 au1xxx_pm_access(LCD_pm_dev);
1465 #endif
1466
1467 plane = fbinfo2index(info);
1468 print_dbg("au1200fb: ioctl %d on plane %d\n", cmd, plane);
1469
1470 if (cmd == AU1200_LCD_FB_IOCTL) {
1471 struct au1200_lcd_iodata_t iodata;
1472
1473 if (copy_from_user(&iodata, (void __user *) arg, sizeof(iodata)))
1474 return -EFAULT;
1475
1476 print_dbg("FB IOCTL called\n");
1477
1478 switch (iodata.subcmd) {
1479 case AU1200_LCD_SET_SCREEN:
1480 print_dbg("AU1200_LCD_SET_SCREEN\n");
1481 set_global(cmd, &iodata.global);
1482 break;
1483
1484 case AU1200_LCD_GET_SCREEN:
1485 print_dbg("AU1200_LCD_GET_SCREEN\n");
1486 get_global(cmd, &iodata.global);
1487 break;
1488
1489 case AU1200_LCD_SET_WINDOW:
1490 print_dbg("AU1200_LCD_SET_WINDOW\n");
1491 set_window(plane, &iodata.window);
1492 break;
1493
1494 case AU1200_LCD_GET_WINDOW:
1495 print_dbg("AU1200_LCD_GET_WINDOW\n");
1496 get_window(plane, &iodata.window);
1497 break;
1498
1499 case AU1200_LCD_SET_PANEL:
1500 print_dbg("AU1200_LCD_SET_PANEL\n");
1501 if ((iodata.global.panel_choice >= 0) &&
1502 (iodata.global.panel_choice <
1503 NUM_PANELS))
1504 {
1505 struct panel_settings *newpanel;
1506 panel_index = iodata.global.panel_choice;
1507 newpanel = &known_lcd_panels[panel_index];
1508 au1200_setpanel(newpanel);
1509 }
1510 break;
1511
1512 case AU1200_LCD_GET_PANEL:
1513 print_dbg("AU1200_LCD_GET_PANEL\n");
1514 iodata.global.panel_choice = panel_index;
1515 break;
1516
1517 default:
1518 return -EINVAL;
1519 }
1520
1521 val = copy_to_user((void __user *) arg, &iodata, sizeof(iodata));
1522 if (val) {
1523 print_dbg("error: could not copy %d bytes\n", val);
1524 return -EFAULT;
1525 }
1526 }
1527
1528 return 0;
1529 }
1530
1531
1532 static struct fb_ops au1200fb_fb_ops = {
1533 .owner = THIS_MODULE,
1534 .fb_check_var = au1200fb_fb_check_var,
1535 .fb_set_par = au1200fb_fb_set_par,
1536 .fb_setcolreg = au1200fb_fb_setcolreg,
1537 .fb_blank = au1200fb_fb_blank,
1538 .fb_fillrect = cfb_fillrect,
1539 .fb_copyarea = cfb_copyarea,
1540 .fb_imageblit = cfb_imageblit,
1541 .fb_sync = NULL,
1542 .fb_ioctl = au1200fb_ioctl,
1543 .fb_mmap = au1200fb_fb_mmap,
1544 };
1545
1546 /*-------------------------------------------------------------------------*/
1547
au1200fb_handle_irq(int irq,void * dev_id)1548 static irqreturn_t au1200fb_handle_irq(int irq, void* dev_id)
1549 {
1550 /* Nothing to do for now, just clear any pending interrupt */
1551 lcd->intstatus = lcd->intstatus;
1552 au_sync();
1553
1554 return IRQ_HANDLED;
1555 }
1556
1557 /*-------------------------------------------------------------------------*/
1558
1559 /* AU1200 LCD device probe helpers */
1560
au1200fb_init_fbinfo(struct au1200fb_device * fbdev)1561 static int au1200fb_init_fbinfo(struct au1200fb_device *fbdev)
1562 {
1563 struct fb_info *fbi = &fbdev->fb_info;
1564 int bpp;
1565
1566 memset(fbi, 0, sizeof(struct fb_info));
1567 fbi->fbops = &au1200fb_fb_ops;
1568
1569 bpp = winbpp(win->w[fbdev->plane].mode_winctrl1);
1570
1571 /* Copy monitor specs from panel data */
1572 /* fixme: we're setting up LCD controller windows, so these dont give a
1573 damn as to what the monitor specs are (the panel itself does, but that
1574 isnt done here...so maybe need a generic catchall monitor setting??? */
1575 memcpy(&fbi->monspecs, &panel->monspecs, sizeof(struct fb_monspecs));
1576
1577 /* We first try the user mode passed in argument. If that failed,
1578 * or if no one has been specified, we default to the first mode of the
1579 * panel list. Note that after this call, var data will be set */
1580 if (!fb_find_mode(&fbi->var,
1581 fbi,
1582 NULL, /* drv_info.opt_mode, */
1583 fbi->monspecs.modedb,
1584 fbi->monspecs.modedb_len,
1585 fbi->monspecs.modedb,
1586 bpp)) {
1587
1588 print_err("Cannot find valid mode for panel %s", panel->name);
1589 return -EFAULT;
1590 }
1591
1592 fbi->pseudo_palette = kcalloc(16, sizeof(u32), GFP_KERNEL);
1593 if (!fbi->pseudo_palette) {
1594 return -ENOMEM;
1595 }
1596
1597 if (fb_alloc_cmap(&fbi->cmap, AU1200_LCD_NBR_PALETTE_ENTRIES, 0) < 0) {
1598 print_err("Fail to allocate colormap (%d entries)",
1599 AU1200_LCD_NBR_PALETTE_ENTRIES);
1600 kfree(fbi->pseudo_palette);
1601 return -EFAULT;
1602 }
1603
1604 strncpy(fbi->fix.id, "AU1200", sizeof(fbi->fix.id));
1605 fbi->fix.smem_start = fbdev->fb_phys;
1606 fbi->fix.smem_len = fbdev->fb_len;
1607 fbi->fix.type = FB_TYPE_PACKED_PIXELS;
1608 fbi->fix.xpanstep = 0;
1609 fbi->fix.ypanstep = 0;
1610 fbi->fix.mmio_start = 0;
1611 fbi->fix.mmio_len = 0;
1612 fbi->fix.accel = FB_ACCEL_NONE;
1613
1614 fbi->screen_base = (char __iomem *) fbdev->fb_mem;
1615
1616 au1200fb_update_fbinfo(fbi);
1617
1618 return 0;
1619 }
1620
1621 /*-------------------------------------------------------------------------*/
1622
1623 /* AU1200 LCD controller device driver */
1624
au1200fb_drv_probe(struct device * dev)1625 static int au1200fb_drv_probe(struct device *dev)
1626 {
1627 struct au1200fb_device *fbdev;
1628 unsigned long page;
1629 int bpp, plane, ret;
1630
1631 if (!dev)
1632 return -EINVAL;
1633
1634 for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane) {
1635 bpp = winbpp(win->w[plane].mode_winctrl1);
1636 if (win->w[plane].xres == 0)
1637 win->w[plane].xres = panel->Xres;
1638 if (win->w[plane].yres == 0)
1639 win->w[plane].yres = panel->Yres;
1640
1641 fbdev = &_au1200fb_devices[plane];
1642 memset(fbdev, 0, sizeof(struct au1200fb_device));
1643 fbdev->plane = plane;
1644
1645 /* Allocate the framebuffer to the maximum screen size */
1646 fbdev->fb_len = (win->w[plane].xres * win->w[plane].yres * bpp) / 8;
1647
1648 fbdev->fb_mem = dma_alloc_noncoherent(dev,
1649 PAGE_ALIGN(fbdev->fb_len),
1650 &fbdev->fb_phys, GFP_KERNEL);
1651 if (!fbdev->fb_mem) {
1652 print_err("fail to allocate frambuffer (size: %dK))",
1653 fbdev->fb_len / 1024);
1654 return -ENOMEM;
1655 }
1656
1657 /*
1658 * Set page reserved so that mmap will work. This is necessary
1659 * since we'll be remapping normal memory.
1660 */
1661 for (page = (unsigned long)fbdev->fb_phys;
1662 page < PAGE_ALIGN((unsigned long)fbdev->fb_phys +
1663 fbdev->fb_len);
1664 page += PAGE_SIZE) {
1665 SetPageReserved(pfn_to_page(page >> PAGE_SHIFT)); /* LCD DMA is NOT coherent on Au1200 */
1666 }
1667 print_dbg("Framebuffer memory map at %p", fbdev->fb_mem);
1668 print_dbg("phys=0x%08x, size=%dK", fbdev->fb_phys, fbdev->fb_len / 1024);
1669
1670 /* Init FB data */
1671 if ((ret = au1200fb_init_fbinfo(fbdev)) < 0)
1672 goto failed;
1673
1674 /* Register new framebuffer */
1675 if ((ret = register_framebuffer(&fbdev->fb_info)) < 0) {
1676 print_err("cannot register new framebuffer");
1677 goto failed;
1678 }
1679
1680 au1200fb_fb_set_par(&fbdev->fb_info);
1681
1682 #if !defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_LOGO)
1683 if (plane == 0)
1684 if (fb_prepare_logo(&fbdev->fb_info, FB_ROTATE_UR)) {
1685 /* Start display and show logo on boot */
1686 fb_set_cmap(&fbdev->fb_info.cmap,
1687 &fbdev->fb_info);
1688
1689 fb_show_logo(&fbdev->fb_info, FB_ROTATE_UR);
1690 }
1691 #endif
1692 }
1693
1694 /* Now hook interrupt too */
1695 if ((ret = request_irq(AU1200_LCD_INT, au1200fb_handle_irq,
1696 IRQF_DISABLED | IRQF_SHARED, "lcd", (void *)dev)) < 0) {
1697 print_err("fail to request interrupt line %d (err: %d)",
1698 AU1200_LCD_INT, ret);
1699 goto failed;
1700 }
1701
1702 return 0;
1703
1704 failed:
1705 /* NOTE: This only does the current plane/window that failed; others are still active */
1706 if (fbdev->fb_mem)
1707 dma_free_noncoherent(dev, PAGE_ALIGN(fbdev->fb_len),
1708 fbdev->fb_mem, fbdev->fb_phys);
1709 if (fbdev->fb_info.cmap.len != 0)
1710 fb_dealloc_cmap(&fbdev->fb_info.cmap);
1711 if (fbdev->fb_info.pseudo_palette)
1712 kfree(fbdev->fb_info.pseudo_palette);
1713 if (plane == 0)
1714 free_irq(AU1200_LCD_INT, (void*)dev);
1715 return ret;
1716 }
1717
au1200fb_drv_remove(struct device * dev)1718 static int au1200fb_drv_remove(struct device *dev)
1719 {
1720 struct au1200fb_device *fbdev;
1721 int plane;
1722
1723 if (!dev)
1724 return -ENODEV;
1725
1726 /* Turn off the panel */
1727 au1200_setpanel(NULL);
1728
1729 for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane)
1730 {
1731 fbdev = &_au1200fb_devices[plane];
1732
1733 /* Clean up all probe data */
1734 unregister_framebuffer(&fbdev->fb_info);
1735 if (fbdev->fb_mem)
1736 dma_free_noncoherent(dev, PAGE_ALIGN(fbdev->fb_len),
1737 fbdev->fb_mem, fbdev->fb_phys);
1738 if (fbdev->fb_info.cmap.len != 0)
1739 fb_dealloc_cmap(&fbdev->fb_info.cmap);
1740 if (fbdev->fb_info.pseudo_palette)
1741 kfree(fbdev->fb_info.pseudo_palette);
1742 }
1743
1744 free_irq(AU1200_LCD_INT, (void *)dev);
1745
1746 return 0;
1747 }
1748
1749 #ifdef CONFIG_PM
au1200fb_drv_suspend(struct device * dev,u32 state,u32 level)1750 static int au1200fb_drv_suspend(struct device *dev, u32 state, u32 level)
1751 {
1752 /* TODO */
1753 return 0;
1754 }
1755
au1200fb_drv_resume(struct device * dev,u32 level)1756 static int au1200fb_drv_resume(struct device *dev, u32 level)
1757 {
1758 /* TODO */
1759 return 0;
1760 }
1761 #endif /* CONFIG_PM */
1762
1763 static struct device_driver au1200fb_driver = {
1764 .name = "au1200-lcd",
1765 .bus = &platform_bus_type,
1766 .probe = au1200fb_drv_probe,
1767 .remove = au1200fb_drv_remove,
1768 #ifdef CONFIG_PM
1769 .suspend = au1200fb_drv_suspend,
1770 .resume = au1200fb_drv_resume,
1771 #endif
1772 };
1773
1774 /*-------------------------------------------------------------------------*/
1775
1776 /* Kernel driver */
1777
au1200fb_setup(void)1778 static void au1200fb_setup(void)
1779 {
1780 char* options = NULL;
1781 char* this_opt;
1782 int num_panels = ARRAY_SIZE(known_lcd_panels);
1783 int panel_idx = -1;
1784
1785 fb_get_options(DRIVER_NAME, &options);
1786
1787 if (options) {
1788 while ((this_opt = strsep(&options,",")) != NULL) {
1789 /* Panel option - can be panel name,
1790 * "bs" for board-switch, or number/index */
1791 if (!strncmp(this_opt, "panel:", 6)) {
1792 int i;
1793 long int li;
1794 char *endptr;
1795 this_opt += 6;
1796 /* First check for index, which allows
1797 * to short circuit this mess */
1798 li = simple_strtol(this_opt, &endptr, 0);
1799 if (*endptr == '\0') {
1800 panel_idx = (int)li;
1801 }
1802 else if (strcmp(this_opt, "bs") == 0) {
1803 extern int board_au1200fb_panel(void);
1804 panel_idx = board_au1200fb_panel();
1805 }
1806
1807 else
1808 for (i = 0; i < num_panels; i++) {
1809 if (!strcmp(this_opt, known_lcd_panels[i].name)) {
1810 panel_idx = i;
1811 break;
1812 }
1813 }
1814
1815 if ((panel_idx < 0) || (panel_idx >= num_panels)) {
1816 print_warn("Panel %s not supported!", this_opt);
1817 }
1818 else
1819 panel_index = panel_idx;
1820 }
1821
1822 else if (strncmp(this_opt, "nohwcursor", 10) == 0) {
1823 nohwcursor = 1;
1824 }
1825
1826 /* Unsupported option */
1827 else {
1828 print_warn("Unsupported option \"%s\"", this_opt);
1829 }
1830 }
1831 }
1832 }
1833
1834 #ifdef CONFIG_PM
au1200fb_pm_callback(au1xxx_power_dev_t * dev,au1xxx_request_t request,void * data)1835 static int au1200fb_pm_callback(au1xxx_power_dev_t *dev,
1836 au1xxx_request_t request, void *data) {
1837 int retval = -1;
1838 unsigned int d = 0;
1839 unsigned int brightness = 0;
1840
1841 if (request == AU1XXX_PM_SLEEP) {
1842 board_au1200fb_panel_shutdown();
1843 }
1844 else if (request == AU1XXX_PM_WAKEUP) {
1845 if(dev->prev_state == SLEEP_STATE)
1846 {
1847 int plane;
1848 au1200_setpanel(panel);
1849 for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane) {
1850 struct au1200fb_device *fbdev;
1851 fbdev = &_au1200fb_devices[plane];
1852 au1200fb_fb_set_par(&fbdev->fb_info);
1853 }
1854 }
1855
1856 d = *((unsigned int*)data);
1857 if(d <=10) brightness = 26;
1858 else if(d<=20) brightness = 51;
1859 else if(d<=30) brightness = 77;
1860 else if(d<=40) brightness = 102;
1861 else if(d<=50) brightness = 128;
1862 else if(d<=60) brightness = 153;
1863 else if(d<=70) brightness = 179;
1864 else if(d<=80) brightness = 204;
1865 else if(d<=90) brightness = 230;
1866 else brightness = 255;
1867 set_brightness(brightness);
1868 } else if (request == AU1XXX_PM_GETSTATUS) {
1869 return dev->cur_state;
1870 } else if (request == AU1XXX_PM_ACCESS) {
1871 if (dev->cur_state != SLEEP_STATE)
1872 return retval;
1873 else {
1874 au1200_setpanel(panel);
1875 }
1876 } else if (request == AU1XXX_PM_IDLE) {
1877 } else if (request == AU1XXX_PM_CLEANUP) {
1878 }
1879
1880 return retval;
1881 }
1882 #endif
1883
au1200fb_init(void)1884 static int __init au1200fb_init(void)
1885 {
1886 print_info("" DRIVER_DESC "");
1887
1888 /* Setup driver with options */
1889 au1200fb_setup();
1890
1891 /* Point to the panel selected */
1892 panel = &known_lcd_panels[panel_index];
1893 win = &windows[window_index];
1894
1895 printk(DRIVER_NAME ": Panel %d %s\n", panel_index, panel->name);
1896 printk(DRIVER_NAME ": Win %d %s\n", window_index, win->name);
1897
1898 /* Kickstart the panel, the framebuffers/windows come soon enough */
1899 au1200_setpanel(panel);
1900
1901 #ifdef CONFIG_PM
1902 LCD_pm_dev = new_au1xxx_power_device("LCD", &au1200fb_pm_callback, NULL);
1903 if ( LCD_pm_dev == NULL)
1904 printk(KERN_INFO "Unable to create a power management device entry for the au1200fb.\n");
1905 else
1906 printk(KERN_INFO "Power management device entry for the au1200fb loaded.\n");
1907 #endif
1908
1909 return driver_register(&au1200fb_driver);
1910 }
1911
au1200fb_cleanup(void)1912 static void __exit au1200fb_cleanup(void)
1913 {
1914 driver_unregister(&au1200fb_driver);
1915 }
1916
1917 module_init(au1200fb_init);
1918 module_exit(au1200fb_cleanup);
1919
1920 MODULE_DESCRIPTION(DRIVER_DESC);
1921 MODULE_LICENSE("GPL");
1922