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Linux 4.16.11
[linux/fpc-iii.git] / drivers / video / fbdev / au1200fb.c
blob87d5a62bf6ca446fb8141b602c38839363dc120e
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/clk.h>
34 #include <linux/module.h>
35 #include <linux/platform_device.h>
36 #include <linux/kernel.h>
37 #include <linux/errno.h>
38 #include <linux/string.h>
39 #include <linux/mm.h>
40 #include <linux/fb.h>
41 #include <linux/init.h>
42 #include <linux/interrupt.h>
43 #include <linux/ctype.h>
44 #include <linux/dma-mapping.h>
45 #include <linux/slab.h>
46 #include <linux/uaccess.h>
47
48 #include <asm/mach-au1x00/au1000.h>
49 #include <asm/mach-au1x00/au1200fb.h> /* platform_data */
50 #include "au1200fb.h"
51
52 #define DRIVER_NAME "au1200fb"
53 #define DRIVER_DESC "LCD controller driver for AU1200 processors"
54
55 #define DEBUG 0
56
57 #define print_err(f, arg...) printk(KERN_ERR DRIVER_NAME ": " f "\n", ## arg)
58 #define print_warn(f, arg...) printk(KERN_WARNING DRIVER_NAME ": " f "\n", ## arg)
59 #define print_info(f, arg...) printk(KERN_INFO DRIVER_NAME ": " f "\n", ## arg)
60
61 #if DEBUG
62 #define print_dbg(f, arg...) printk(KERN_DEBUG __FILE__ ": " f "\n", ## arg)
63 #else
64 #define print_dbg(f, arg...) do {} while (0)
65 #endif
66
67
68 #define AU1200_LCD_FB_IOCTL 0x46FF
69
70 #define AU1200_LCD_SET_SCREEN 1
71 #define AU1200_LCD_GET_SCREEN 2
72 #define AU1200_LCD_SET_WINDOW 3
73 #define AU1200_LCD_GET_WINDOW 4
74 #define AU1200_LCD_SET_PANEL 5
75 #define AU1200_LCD_GET_PANEL 6
76
77 #define SCREEN_SIZE (1<< 1)
78 #define SCREEN_BACKCOLOR (1<< 2)
79 #define SCREEN_BRIGHTNESS (1<< 3)
80 #define SCREEN_COLORKEY (1<< 4)
81 #define SCREEN_MASK (1<< 5)
82
83 struct au1200_lcd_global_regs_t {
84 unsigned int flags;
85 unsigned int xsize;
86 unsigned int ysize;
87 unsigned int backcolor;
88 unsigned int brightness;
89 unsigned int colorkey;
90 unsigned int mask;
91 unsigned int panel_choice;
92 char panel_desc[80];
93
94 };
95
96 #define WIN_POSITION (1<< 0)
97 #define WIN_ALPHA_COLOR (1<< 1)
98 #define WIN_ALPHA_MODE (1<< 2)
99 #define WIN_PRIORITY (1<< 3)
100 #define WIN_CHANNEL (1<< 4)
101 #define WIN_BUFFER_FORMAT (1<< 5)
102 #define WIN_COLOR_ORDER (1<< 6)
103 #define WIN_PIXEL_ORDER (1<< 7)
104 #define WIN_SIZE (1<< 8)
105 #define WIN_COLORKEY_MODE (1<< 9)
106 #define WIN_DOUBLE_BUFFER_MODE (1<< 10)
107 #define WIN_RAM_ARRAY_MODE (1<< 11)
108 #define WIN_BUFFER_SCALE (1<< 12)
109 #define WIN_ENABLE (1<< 13)
110
111 struct au1200_lcd_window_regs_t {
112 unsigned int flags;
113 unsigned int xpos;
114 unsigned int ypos;
115 unsigned int alpha_color;
116 unsigned int alpha_mode;
117 unsigned int priority;
118 unsigned int channel;
119 unsigned int buffer_format;
120 unsigned int color_order;
121 unsigned int pixel_order;
122 unsigned int xsize;
123 unsigned int ysize;
124 unsigned int colorkey_mode;
125 unsigned int double_buffer_mode;
126 unsigned int ram_array_mode;
127 unsigned int xscale;
128 unsigned int yscale;
129 unsigned int enable;
130 };
131
132
133 struct au1200_lcd_iodata_t {
134 unsigned int subcmd;
135 struct au1200_lcd_global_regs_t global;
136 struct au1200_lcd_window_regs_t window;
137 };
138
139 #if defined(__BIG_ENDIAN)
140 #define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_11
141 #else
142 #define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_00
143 #endif
144 #define LCD_CONTROL_DEFAULT_SBPPF LCD_CONTROL_SBPPF_565
145
146 /* Private, per-framebuffer management information (independent of the panel itself) */
147 struct au1200fb_device {
148 struct fb_info *fb_info; /* FB driver info record */
149 struct au1200fb_platdata *pd;
150
151 int plane;
152 unsigned char* fb_mem; /* FrameBuffer memory map */
153 unsigned int fb_len;
154 dma_addr_t fb_phys;
155 };
156
157 /********************************************************************/
158
159 /* LCD controller restrictions */
160 #define AU1200_LCD_MAX_XRES 1280
161 #define AU1200_LCD_MAX_YRES 1024
162 #define AU1200_LCD_MAX_BPP 32
163 #define AU1200_LCD_MAX_CLK 96000000 /* fixme: this needs to go away ? */
164 #define AU1200_LCD_NBR_PALETTE_ENTRIES 256
165
166 /* Default number of visible screen buffer to allocate */
167 #define AU1200FB_NBR_VIDEO_BUFFERS 1
168
169 /* Default maximum number of fb devices to create */
170 #define MAX_DEVICE_COUNT 4
171
172 /* Default window configuration entry to use (see windows[]) */
173 #define DEFAULT_WINDOW_INDEX 2
174
175 /********************************************************************/
176
177 static struct fb_info *_au1200fb_infos[MAX_DEVICE_COUNT];
178 static struct au1200_lcd *lcd = (struct au1200_lcd *) AU1200_LCD_ADDR;
179 static int device_count = MAX_DEVICE_COUNT;
180 static int window_index = DEFAULT_WINDOW_INDEX; /* default is zero */
181 static int panel_index = 2; /* default is zero */
182 static struct window_settings *win;
183 static struct panel_settings *panel;
184 static int noblanking = 1;
185 static int nohwcursor = 0;
186
187 struct window_settings {
188 unsigned char name[64];
189 uint32 mode_backcolor;
190 uint32 mode_colorkey;
191 uint32 mode_colorkeymsk;
192 struct {
193 int xres;
194 int yres;
195 int xpos;
196 int ypos;
197 uint32 mode_winctrl1; /* winctrl1[FRM,CCO,PO,PIPE] */
198 uint32 mode_winenable;
199 } w[4];
200 };
201
202 #if defined(__BIG_ENDIAN)
203 #define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_00
204 #else
205 #define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_01
206 #endif
207
208 /*
209 * Default window configurations
210 */
211 static struct window_settings windows[] = {
212 { /* Index 0 */
213 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
214 /* mode_backcolor */ 0x006600ff,
215 /* mode_colorkey,msk*/ 0, 0,
216 {
217 {
218 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
219 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
220 LCD_WINCTRL1_PO_16BPP,
221 /* mode_winenable*/ LCD_WINENABLE_WEN0,
222 },
223 {
224 /* xres, yres, xpos, ypos */ 100, 100, 100, 100,
225 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
226 LCD_WINCTRL1_PO_16BPP |
227 LCD_WINCTRL1_PIPE,
228 /* mode_winenable*/ LCD_WINENABLE_WEN1,
229 },
230 {
231 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
232 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
233 LCD_WINCTRL1_PO_16BPP,
234 /* mode_winenable*/ 0,
235 },
236 {
237 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
238 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
239 LCD_WINCTRL1_PO_16BPP |
240 LCD_WINCTRL1_PIPE,
241 /* mode_winenable*/ 0,
242 },
243 },
244 },
245
246 { /* Index 1 */
247 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
248 /* mode_backcolor */ 0x006600ff,
249 /* mode_colorkey,msk*/ 0, 0,
250 {
251 {
252 /* xres, yres, xpos, ypos */ 320, 240, 5, 5,
253 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_24BPP |
254 LCD_WINCTRL1_PO_00,
255 /* mode_winenable*/ LCD_WINENABLE_WEN0,
256 },
257 {
258 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
259 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565
260 | LCD_WINCTRL1_PO_16BPP,
261 /* mode_winenable*/ 0,
262 },
263 {
264 /* xres, yres, xpos, ypos */ 100, 100, 0, 0,
265 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
266 LCD_WINCTRL1_PO_16BPP |
267 LCD_WINCTRL1_PIPE,
268 /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/,
269 },
270 {
271 /* xres, yres, xpos, ypos */ 200, 25, 0, 0,
272 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
273 LCD_WINCTRL1_PO_16BPP |
274 LCD_WINCTRL1_PIPE,
275 /* mode_winenable*/ 0,
276 },
277 },
278 },
279 { /* Index 2 */
280 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
281 /* mode_backcolor */ 0x006600ff,
282 /* mode_colorkey,msk*/ 0, 0,
283 {
284 {
285 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
286 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
287 LCD_WINCTRL1_PO_16BPP,
288 /* mode_winenable*/ LCD_WINENABLE_WEN0,
289 },
290 {
291 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
292 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
293 LCD_WINCTRL1_PO_16BPP,
294 /* mode_winenable*/ 0,
295 },
296 {
297 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
298 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_32BPP |
299 LCD_WINCTRL1_PO_00|LCD_WINCTRL1_PIPE,
300 /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/,
301 },
302 {
303 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
304 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
305 LCD_WINCTRL1_PO_16BPP |
306 LCD_WINCTRL1_PIPE,
307 /* mode_winenable*/ 0,
308 },
309 },
310 },
311 /* Need VGA 640 @ 24bpp, @ 32bpp */
312 /* Need VGA 800 @ 24bpp, @ 32bpp */
313 /* Need VGA 1024 @ 24bpp, @ 32bpp */
314 };
315
316 /*
317 * Controller configurations for various panels.
318 */
319
320 struct panel_settings
321 {
322 const char name[25]; /* Full name <vendor>_<model> */
323
324 struct fb_monspecs monspecs; /* FB monitor specs */
325
326 /* panel timings */
327 uint32 mode_screen;
328 uint32 mode_horztiming;
329 uint32 mode_verttiming;
330 uint32 mode_clkcontrol;
331 uint32 mode_pwmdiv;
332 uint32 mode_pwmhi;
333 uint32 mode_outmask;
334 uint32 mode_fifoctrl;
335 uint32 mode_backlight;
336 uint32 lcdclk;
337 #define Xres min_xres
338 #define Yres min_yres
339 u32 min_xres; /* Minimum horizontal resolution */
340 u32 max_xres; /* Maximum horizontal resolution */
341 u32 min_yres; /* Minimum vertical resolution */
342 u32 max_yres; /* Maximum vertical resolution */
343 };
344
345 /********************************************************************/
346 /* fixme: Maybe a modedb for the CRT ? otherwise panels should be as-is */
347
348 /* List of panels known to work with the AU1200 LCD controller.
349 * To add a new panel, enter the same specifications as the
350 * Generic_TFT one, and MAKE SURE that it doesn't conflicts
351 * with the controller restrictions. Restrictions are:
352 *
353 * STN color panels: max_bpp <= 12
354 * STN mono panels: max_bpp <= 4
355 * TFT panels: max_bpp <= 16
356 * max_xres <= 800
357 * max_yres <= 600
358 */
359 static struct panel_settings known_lcd_panels[] =
360 {
361 [0] = { /* QVGA 320x240 H:33.3kHz V:110Hz */
362 .name = "QVGA_320x240",
363 .monspecs = {
364 .modedb = NULL,
365 .modedb_len = 0,
366 .hfmin = 30000,
367 .hfmax = 70000,
368 .vfmin = 60,
369 .vfmax = 60,
370 .dclkmin = 6000000,
371 .dclkmax = 28000000,
372 .input = FB_DISP_RGB,
373 },
374 .mode_screen = LCD_SCREEN_SX_N(320) |
375 LCD_SCREEN_SY_N(240),
376 .mode_horztiming = 0x00c4623b,
377 .mode_verttiming = 0x00502814,
378 .mode_clkcontrol = 0x00020002, /* /4=24Mhz */
379 .mode_pwmdiv = 0x00000000,
380 .mode_pwmhi = 0x00000000,
381 .mode_outmask = 0x00FFFFFF,
382 .mode_fifoctrl = 0x2f2f2f2f,
383 .mode_backlight = 0x00000000,
384 .lcdclk = 96,
385 320, 320,
386 240, 240,
387 },
388
389 [1] = { /* VGA 640x480 H:30.3kHz V:58Hz */
390 .name = "VGA_640x480",
391 .monspecs = {
392 .modedb = NULL,
393 .modedb_len = 0,
394 .hfmin = 30000,
395 .hfmax = 70000,
396 .vfmin = 60,
397 .vfmax = 60,
398 .dclkmin = 6000000,
399 .dclkmax = 28000000,
400 .input = FB_DISP_RGB,
401 },
402 .mode_screen = 0x13f9df80,
403 .mode_horztiming = 0x003c5859,
404 .mode_verttiming = 0x00741201,
405 .mode_clkcontrol = 0x00020001, /* /4=24Mhz */
406 .mode_pwmdiv = 0x00000000,
407 .mode_pwmhi = 0x00000000,
408 .mode_outmask = 0x00FFFFFF,
409 .mode_fifoctrl = 0x2f2f2f2f,
410 .mode_backlight = 0x00000000,
411 .lcdclk = 96,
412 640, 480,
413 640, 480,
414 },
415
416 [2] = { /* SVGA 800x600 H:46.1kHz V:69Hz */
417 .name = "SVGA_800x600",
418 .monspecs = {
419 .modedb = NULL,
420 .modedb_len = 0,
421 .hfmin = 30000,
422 .hfmax = 70000,
423 .vfmin = 60,
424 .vfmax = 60,
425 .dclkmin = 6000000,
426 .dclkmax = 28000000,
427 .input = FB_DISP_RGB,
428 },
429 .mode_screen = 0x18fa5780,
430 .mode_horztiming = 0x00dc7e77,
431 .mode_verttiming = 0x00584805,
432 .mode_clkcontrol = 0x00020000, /* /2=48Mhz */
433 .mode_pwmdiv = 0x00000000,
434 .mode_pwmhi = 0x00000000,
435 .mode_outmask = 0x00FFFFFF,
436 .mode_fifoctrl = 0x2f2f2f2f,
437 .mode_backlight = 0x00000000,
438 .lcdclk = 96,
439 800, 800,
440 600, 600,
441 },
442
443 [3] = { /* XVGA 1024x768 H:56.2kHz V:70Hz */
444 .name = "XVGA_1024x768",
445 .monspecs = {
446 .modedb = NULL,
447 .modedb_len = 0,
448 .hfmin = 30000,
449 .hfmax = 70000,
450 .vfmin = 60,
451 .vfmax = 60,
452 .dclkmin = 6000000,
453 .dclkmax = 28000000,
454 .input = FB_DISP_RGB,
455 },
456 .mode_screen = 0x1ffaff80,
457 .mode_horztiming = 0x007d0e57,
458 .mode_verttiming = 0x00740a01,
459 .mode_clkcontrol = 0x000A0000, /* /1 */
460 .mode_pwmdiv = 0x00000000,
461 .mode_pwmhi = 0x00000000,
462 .mode_outmask = 0x00FFFFFF,
463 .mode_fifoctrl = 0x2f2f2f2f,
464 .mode_backlight = 0x00000000,
465 .lcdclk = 72,
466 1024, 1024,
467 768, 768,
468 },
469
470 [4] = { /* XVGA XVGA 1280x1024 H:68.5kHz V:65Hz */
471 .name = "XVGA_1280x1024",
472 .monspecs = {
473 .modedb = NULL,
474 .modedb_len = 0,
475 .hfmin = 30000,
476 .hfmax = 70000,
477 .vfmin = 60,
478 .vfmax = 60,
479 .dclkmin = 6000000,
480 .dclkmax = 28000000,
481 .input = FB_DISP_RGB,
482 },
483 .mode_screen = 0x27fbff80,
484 .mode_horztiming = 0x00cdb2c7,
485 .mode_verttiming = 0x00600002,
486 .mode_clkcontrol = 0x000A0000, /* /1 */
487 .mode_pwmdiv = 0x00000000,
488 .mode_pwmhi = 0x00000000,
489 .mode_outmask = 0x00FFFFFF,
490 .mode_fifoctrl = 0x2f2f2f2f,
491 .mode_backlight = 0x00000000,
492 .lcdclk = 120,
493 1280, 1280,
494 1024, 1024,
495 },
496
497 [5] = { /* Samsung 1024x768 TFT */
498 .name = "Samsung_1024x768_TFT",
499 .monspecs = {
500 .modedb = NULL,
501 .modedb_len = 0,
502 .hfmin = 30000,
503 .hfmax = 70000,
504 .vfmin = 60,
505 .vfmax = 60,
506 .dclkmin = 6000000,
507 .dclkmax = 28000000,
508 .input = FB_DISP_RGB,
509 },
510 .mode_screen = 0x1ffaff80,
511 .mode_horztiming = 0x018cc677,
512 .mode_verttiming = 0x00241217,
513 .mode_clkcontrol = 0x00000000, /* SCB 0x1 /4=24Mhz */
514 .mode_pwmdiv = 0x8000063f, /* SCB 0x0 */
515 .mode_pwmhi = 0x03400000, /* SCB 0x0 */
516 .mode_outmask = 0x00FFFFFF,
517 .mode_fifoctrl = 0x2f2f2f2f,
518 .mode_backlight = 0x00000000,
519 .lcdclk = 96,
520 1024, 1024,
521 768, 768,
522 },
523
524 [6] = { /* Toshiba 640x480 TFT */
525 .name = "Toshiba_640x480_TFT",
526 .monspecs = {
527 .modedb = NULL,
528 .modedb_len = 0,
529 .hfmin = 30000,
530 .hfmax = 70000,
531 .vfmin = 60,
532 .vfmax = 60,
533 .dclkmin = 6000000,
534 .dclkmax = 28000000,
535 .input = FB_DISP_RGB,
536 },
537 .mode_screen = LCD_SCREEN_SX_N(640) |
538 LCD_SCREEN_SY_N(480),
539 .mode_horztiming = LCD_HORZTIMING_HPW_N(96) |
540 LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(51),
541 .mode_verttiming = LCD_VERTTIMING_VPW_N(2) |
542 LCD_VERTTIMING_VND1_N(11) | LCD_VERTTIMING_VND2_N(32),
543 .mode_clkcontrol = 0x00000000, /* /4=24Mhz */
544 .mode_pwmdiv = 0x8000063f,
545 .mode_pwmhi = 0x03400000,
546 .mode_outmask = 0x00fcfcfc,
547 .mode_fifoctrl = 0x2f2f2f2f,
548 .mode_backlight = 0x00000000,
549 .lcdclk = 96,
550 640, 480,
551 640, 480,
552 },
553
554 [7] = { /* Sharp 320x240 TFT */
555 .name = "Sharp_320x240_TFT",
556 .monspecs = {
557 .modedb = NULL,
558 .modedb_len = 0,
559 .hfmin = 12500,
560 .hfmax = 20000,
561 .vfmin = 38,
562 .vfmax = 81,
563 .dclkmin = 4500000,
564 .dclkmax = 6800000,
565 .input = FB_DISP_RGB,
566 },
567 .mode_screen = LCD_SCREEN_SX_N(320) |
568 LCD_SCREEN_SY_N(240),
569 .mode_horztiming = LCD_HORZTIMING_HPW_N(60) |
570 LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(2),
571 .mode_verttiming = LCD_VERTTIMING_VPW_N(2) |
572 LCD_VERTTIMING_VND1_N(2) | LCD_VERTTIMING_VND2_N(5),
573 .mode_clkcontrol = LCD_CLKCONTROL_PCD_N(7), /*16=6Mhz*/
574 .mode_pwmdiv = 0x8000063f,
575 .mode_pwmhi = 0x03400000,
576 .mode_outmask = 0x00fcfcfc,
577 .mode_fifoctrl = 0x2f2f2f2f,
578 .mode_backlight = 0x00000000,
579 .lcdclk = 96, /* 96MHz AUXPLL */
580 320, 320,
581 240, 240,
582 },
583
584 [8] = { /* Toppoly TD070WGCB2 7" 856x480 TFT */
585 .name = "Toppoly_TD070WGCB2",
586 .monspecs = {
587 .modedb = NULL,
588 .modedb_len = 0,
589 .hfmin = 30000,
590 .hfmax = 70000,
591 .vfmin = 60,
592 .vfmax = 60,
593 .dclkmin = 6000000,
594 .dclkmax = 28000000,
595 .input = FB_DISP_RGB,
596 },
597 .mode_screen = LCD_SCREEN_SX_N(856) |
598 LCD_SCREEN_SY_N(480),
599 .mode_horztiming = LCD_HORZTIMING_HND2_N(43) |
600 LCD_HORZTIMING_HND1_N(43) | LCD_HORZTIMING_HPW_N(114),
601 .mode_verttiming = LCD_VERTTIMING_VND2_N(20) |
602 LCD_VERTTIMING_VND1_N(21) | LCD_VERTTIMING_VPW_N(4),
603 .mode_clkcontrol = 0x00020001, /* /4=24Mhz */
604 .mode_pwmdiv = 0x8000063f,
605 .mode_pwmhi = 0x03400000,
606 .mode_outmask = 0x00fcfcfc,
607 .mode_fifoctrl = 0x2f2f2f2f,
608 .mode_backlight = 0x00000000,
609 .lcdclk = 96,
610 856, 856,
611 480, 480,
612 },
613 [9] = {
614 .name = "DB1300_800x480",
615 .monspecs = {
616 .modedb = NULL,
617 .modedb_len = 0,
618 .hfmin = 30000,
619 .hfmax = 70000,
620 .vfmin = 60,
621 .vfmax = 60,
622 .dclkmin = 6000000,
623 .dclkmax = 28000000,
624 .input = FB_DISP_RGB,
625 },
626 .mode_screen = LCD_SCREEN_SX_N(800) |
627 LCD_SCREEN_SY_N(480),
628 .mode_horztiming = LCD_HORZTIMING_HPW_N(5) |
629 LCD_HORZTIMING_HND1_N(16) |
630 LCD_HORZTIMING_HND2_N(8),
631 .mode_verttiming = LCD_VERTTIMING_VPW_N(4) |
632 LCD_VERTTIMING_VND1_N(8) |
633 LCD_VERTTIMING_VND2_N(5),
634 .mode_clkcontrol = LCD_CLKCONTROL_PCD_N(1) |
635 LCD_CLKCONTROL_IV |
636 LCD_CLKCONTROL_IH,
637 .mode_pwmdiv = 0x00000000,
638 .mode_pwmhi = 0x00000000,
639 .mode_outmask = 0x00FFFFFF,
640 .mode_fifoctrl = 0x2f2f2f2f,
641 .mode_backlight = 0x00000000,
642 .lcdclk = 96,
643 800, 800,
644 480, 480,
645 },
646 };
647
648 #define NUM_PANELS (ARRAY_SIZE(known_lcd_panels))
649
650 /********************************************************************/
651
652 static int winbpp (unsigned int winctrl1)
653 {
654 int bits = 0;
655
656 /* how many bits are needed for each pixel format */
657 switch (winctrl1 & LCD_WINCTRL1_FRM) {
658 case LCD_WINCTRL1_FRM_1BPP:
659 bits = 1;
660 break;
661 case LCD_WINCTRL1_FRM_2BPP:
662 bits = 2;
663 break;
664 case LCD_WINCTRL1_FRM_4BPP:
665 bits = 4;
666 break;
667 case LCD_WINCTRL1_FRM_8BPP:
668 bits = 8;
669 break;
670 case LCD_WINCTRL1_FRM_12BPP:
671 case LCD_WINCTRL1_FRM_16BPP655:
672 case LCD_WINCTRL1_FRM_16BPP565:
673 case LCD_WINCTRL1_FRM_16BPP556:
674 case LCD_WINCTRL1_FRM_16BPPI1555:
675 case LCD_WINCTRL1_FRM_16BPPI5551:
676 case LCD_WINCTRL1_FRM_16BPPA1555:
677 case LCD_WINCTRL1_FRM_16BPPA5551:
678 bits = 16;
679 break;
680 case LCD_WINCTRL1_FRM_24BPP:
681 case LCD_WINCTRL1_FRM_32BPP:
682 bits = 32;
683 break;
684 }
685
686 return bits;
687 }
688
689 static int fbinfo2index (struct fb_info *fb_info)
690 {
691 int i;
692
693 for (i = 0; i < device_count; ++i) {
694 if (fb_info == _au1200fb_infos[i])
695 return i;
696 }
697 printk("au1200fb: ERROR: fbinfo2index failed!\n");
698 return -1;
699 }
700
701 static int au1200_setlocation (struct au1200fb_device *fbdev, int plane,
702 int xpos, int ypos)
703 {
704 uint32 winctrl0, winctrl1, winenable, fb_offset = 0;
705 int xsz, ysz;
706
707 /* FIX!!! NOT CHECKING FOR COMPLETE OFFSCREEN YET */
708
709 winctrl0 = lcd->window[plane].winctrl0;
710 winctrl1 = lcd->window[plane].winctrl1;
711 winctrl0 &= (LCD_WINCTRL0_A | LCD_WINCTRL0_AEN);
712 winctrl1 &= ~(LCD_WINCTRL1_SZX | LCD_WINCTRL1_SZY);
713
714 /* Check for off-screen adjustments */
715 xsz = win->w[plane].xres;
716 ysz = win->w[plane].yres;
717 if ((xpos + win->w[plane].xres) > panel->Xres) {
718 /* Off-screen to the right */
719 xsz = panel->Xres - xpos; /* off by 1 ??? */
720 /*printk("off screen right\n");*/
721 }
722
723 if ((ypos + win->w[plane].yres) > panel->Yres) {
724 /* Off-screen to the bottom */
725 ysz = panel->Yres - ypos; /* off by 1 ??? */
726 /*printk("off screen bottom\n");*/
727 }
728
729 if (xpos < 0) {
730 /* Off-screen to the left */
731 xsz = win->w[plane].xres + xpos;
732 fb_offset += (((0 - xpos) * winbpp(lcd->window[plane].winctrl1))/8);
733 xpos = 0;
734 /*printk("off screen left\n");*/
735 }
736
737 if (ypos < 0) {
738 /* Off-screen to the top */
739 ysz = win->w[plane].yres + ypos;
740 /* fixme: fb_offset += ((0-ypos)*fb_pars[plane].line_length); */
741 ypos = 0;
742 /*printk("off screen top\n");*/
743 }
744
745 /* record settings */
746 win->w[plane].xpos = xpos;
747 win->w[plane].ypos = ypos;
748
749 xsz -= 1;
750 ysz -= 1;
751 winctrl0 |= (xpos << 21);
752 winctrl0 |= (ypos << 10);
753 winctrl1 |= (xsz << 11);
754 winctrl1 |= (ysz << 0);
755
756 /* Disable the window while making changes, then restore WINEN */
757 winenable = lcd->winenable & (1 << plane);
758 wmb(); /* drain writebuffer */
759 lcd->winenable &= ~(1 << plane);
760 lcd->window[plane].winctrl0 = winctrl0;
761 lcd->window[plane].winctrl1 = winctrl1;
762 lcd->window[plane].winbuf0 =
763 lcd->window[plane].winbuf1 = fbdev->fb_phys;
764 lcd->window[plane].winbufctrl = 0; /* select winbuf0 */
765 lcd->winenable |= winenable;
766 wmb(); /* drain writebuffer */
767
768 return 0;
769 }
770
771 static void au1200_setpanel(struct panel_settings *newpanel,
772 struct au1200fb_platdata *pd)
773 {
774 /*
775 * Perform global setup/init of LCD controller
776 */
777 uint32 winenable;
778
779 /* Make sure all windows disabled */
780 winenable = lcd->winenable;
781 lcd->winenable = 0;
782 wmb(); /* drain writebuffer */
783 /*
784 * Ensure everything is disabled before reconfiguring
785 */
786 if (lcd->screen & LCD_SCREEN_SEN) {
787 /* Wait for vertical sync period */
788 lcd->intstatus = LCD_INT_SS;
789 while ((lcd->intstatus & LCD_INT_SS) == 0)
790 ;
791
792 lcd->screen &= ~LCD_SCREEN_SEN; /*disable the controller*/
793
794 do {
795 lcd->intstatus = lcd->intstatus; /*clear interrupts*/
796 wmb(); /* drain writebuffer */
797 /*wait for controller to shut down*/
798 } while ((lcd->intstatus & LCD_INT_SD) == 0);
799
800 /* Call shutdown of current panel (if up) */
801 /* this must occur last, because if an external clock is driving
802 the controller, the clock cannot be turned off before first
803 shutting down the controller.
804 */
805 if (pd->panel_shutdown)
806 pd->panel_shutdown();
807 }
808
809 /* Newpanel == NULL indicates a shutdown operation only */
810 if (newpanel == NULL)
811 return;
812
813 panel = newpanel;
814
815 printk("Panel(%s), %dx%d\n", panel->name, panel->Xres, panel->Yres);
816
817 /*
818 * Setup clocking if internal LCD clock source (assumes sys_auxpll valid)
819 */
820 if (!(panel->mode_clkcontrol & LCD_CLKCONTROL_EXT))
821 {
822 struct clk *c = clk_get(NULL, "lcd_intclk");
823 long r, pc = panel->lcdclk * 1000000;
824
825 if (!IS_ERR(c)) {
826 r = clk_round_rate(c, pc);
827 if ((pc - r) < (pc / 10)) { /* 10% slack */
828 clk_set_rate(c, r);
829 clk_prepare_enable(c);
830 }
831 clk_put(c);
832 }
833 }
834
835 /*
836 * Configure panel timings
837 */
838 lcd->screen = panel->mode_screen;
839 lcd->horztiming = panel->mode_horztiming;
840 lcd->verttiming = panel->mode_verttiming;
841 lcd->clkcontrol = panel->mode_clkcontrol;
842 lcd->pwmdiv = panel->mode_pwmdiv;
843 lcd->pwmhi = panel->mode_pwmhi;
844 lcd->outmask = panel->mode_outmask;
845 lcd->fifoctrl = panel->mode_fifoctrl;
846 wmb(); /* drain writebuffer */
847
848 /* fixme: Check window settings to make sure still valid
849 * for new geometry */
850 #if 0
851 au1200_setlocation(fbdev, 0, win->w[0].xpos, win->w[0].ypos);
852 au1200_setlocation(fbdev, 1, win->w[1].xpos, win->w[1].ypos);
853 au1200_setlocation(fbdev, 2, win->w[2].xpos, win->w[2].ypos);
854 au1200_setlocation(fbdev, 3, win->w[3].xpos, win->w[3].ypos);
855 #endif
856 lcd->winenable = winenable;
857
858 /*
859 * Re-enable screen now that it is configured
860 */
861 lcd->screen |= LCD_SCREEN_SEN;
862 wmb(); /* drain writebuffer */
863
864 /* Call init of panel */
865 if (pd->panel_init)
866 pd->panel_init();
867
868 /* FIX!!!! not appropriate on panel change!!! Global setup/init */
869 lcd->intenable = 0;
870 lcd->intstatus = ~0;
871 lcd->backcolor = win->mode_backcolor;
872
873 /* Setup Color Key - FIX!!! */
874 lcd->colorkey = win->mode_colorkey;
875 lcd->colorkeymsk = win->mode_colorkeymsk;
876
877 /* Setup HWCursor - FIX!!! Need to support this eventually */
878 lcd->hwc.cursorctrl = 0;
879 lcd->hwc.cursorpos = 0;
880 lcd->hwc.cursorcolor0 = 0;
881 lcd->hwc.cursorcolor1 = 0;
882 lcd->hwc.cursorcolor2 = 0;
883 lcd->hwc.cursorcolor3 = 0;
884
885
886 #if 0
887 #define D(X) printk("%25s: %08X\n", #X, X)
888 D(lcd->screen);
889 D(lcd->horztiming);
890 D(lcd->verttiming);
891 D(lcd->clkcontrol);
892 D(lcd->pwmdiv);
893 D(lcd->pwmhi);
894 D(lcd->outmask);
895 D(lcd->fifoctrl);
896 D(lcd->window[0].winctrl0);
897 D(lcd->window[0].winctrl1);
898 D(lcd->window[0].winctrl2);
899 D(lcd->window[0].winbuf0);
900 D(lcd->window[0].winbuf1);
901 D(lcd->window[0].winbufctrl);
902 D(lcd->window[1].winctrl0);
903 D(lcd->window[1].winctrl1);
904 D(lcd->window[1].winctrl2);
905 D(lcd->window[1].winbuf0);
906 D(lcd->window[1].winbuf1);
907 D(lcd->window[1].winbufctrl);
908 D(lcd->window[2].winctrl0);
909 D(lcd->window[2].winctrl1);
910 D(lcd->window[2].winctrl2);
911 D(lcd->window[2].winbuf0);
912 D(lcd->window[2].winbuf1);
913 D(lcd->window[2].winbufctrl);
914 D(lcd->window[3].winctrl0);
915 D(lcd->window[3].winctrl1);
916 D(lcd->window[3].winctrl2);
917 D(lcd->window[3].winbuf0);
918 D(lcd->window[3].winbuf1);
919 D(lcd->window[3].winbufctrl);
920 D(lcd->winenable);
921 D(lcd->intenable);
922 D(lcd->intstatus);
923 D(lcd->backcolor);
924 D(lcd->winenable);
925 D(lcd->colorkey);
926 D(lcd->colorkeymsk);
927 D(lcd->hwc.cursorctrl);
928 D(lcd->hwc.cursorpos);
929 D(lcd->hwc.cursorcolor0);
930 D(lcd->hwc.cursorcolor1);
931 D(lcd->hwc.cursorcolor2);
932 D(lcd->hwc.cursorcolor3);
933 #endif
934 }
935
936 static void au1200_setmode(struct au1200fb_device *fbdev)
937 {
938 int plane = fbdev->plane;
939 /* Window/plane setup */
940 lcd->window[plane].winctrl1 = ( 0
941 | LCD_WINCTRL1_PRI_N(plane)
942 | win->w[plane].mode_winctrl1 /* FRM,CCO,PO,PIPE */
943 ) ;
944
945 au1200_setlocation(fbdev, plane, win->w[plane].xpos, win->w[plane].ypos);
946
947 lcd->window[plane].winctrl2 = ( 0
948 | LCD_WINCTRL2_CKMODE_00
949 | LCD_WINCTRL2_DBM
950 | LCD_WINCTRL2_BX_N(fbdev->fb_info->fix.line_length)
951 | LCD_WINCTRL2_SCX_1
952 | LCD_WINCTRL2_SCY_1
953 ) ;
954 lcd->winenable |= win->w[plane].mode_winenable;
955 wmb(); /* drain writebuffer */
956 }
957
958
959 /* Inline helpers */
960
961 /*#define panel_is_dual(panel) ((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/
962 /*#define panel_is_active(panel)((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/
963
964 #define panel_is_color(panel) ((panel->mode_screen & LCD_SCREEN_PT) <= LCD_SCREEN_PT_CDSTN)
965
966 /* Bitfields format supported by the controller. */
967 static struct fb_bitfield rgb_bitfields[][4] = {
968 /* Red, Green, Blue, Transp */
969 [LCD_WINCTRL1_FRM_16BPP655 >> 25] =
970 { { 10, 6, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
971
972 [LCD_WINCTRL1_FRM_16BPP565 >> 25] =
973 { { 11, 5, 0 }, { 5, 6, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
974
975 [LCD_WINCTRL1_FRM_16BPP556 >> 25] =
976 { { 11, 5, 0 }, { 6, 5, 0 }, { 0, 6, 0 }, { 0, 0, 0 } },
977
978 [LCD_WINCTRL1_FRM_16BPPI1555 >> 25] =
979 { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
980
981 [LCD_WINCTRL1_FRM_16BPPI5551 >> 25] =
982 { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 0, 0 } },
983
984 [LCD_WINCTRL1_FRM_16BPPA1555 >> 25] =
985 { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 15, 1, 0 } },
986
987 [LCD_WINCTRL1_FRM_16BPPA5551 >> 25] =
988 { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 1, 0 } },
989
990 [LCD_WINCTRL1_FRM_24BPP >> 25] =
991 { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 0, 0, 0 } },
992
993 [LCD_WINCTRL1_FRM_32BPP >> 25] =
994 { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 24, 0, 0 } },
995 };
996
997 /*-------------------------------------------------------------------------*/
998
999 /* Helpers */
1000
1001 static void au1200fb_update_fbinfo(struct fb_info *fbi)
1002 {
1003 /* FIX!!!! This also needs to take the window pixel format into account!!! */
1004
1005 /* Update var-dependent FB info */
1006 if (panel_is_color(panel)) {
1007 if (fbi->var.bits_per_pixel <= 8) {
1008 /* palettized */
1009 fbi->fix.visual = FB_VISUAL_PSEUDOCOLOR;
1010 fbi->fix.line_length = fbi->var.xres_virtual /
1011 (8/fbi->var.bits_per_pixel);
1012 } else {
1013 /* non-palettized */
1014 fbi->fix.visual = FB_VISUAL_TRUECOLOR;
1015 fbi->fix.line_length = fbi->var.xres_virtual * (fbi->var.bits_per_pixel / 8);
1016 }
1017 } else {
1018 /* mono FIX!!! mono 8 and 4 bits */
1019 fbi->fix.visual = FB_VISUAL_MONO10;
1020 fbi->fix.line_length = fbi->var.xres_virtual / 8;
1021 }
1022
1023 fbi->screen_size = fbi->fix.line_length * fbi->var.yres_virtual;
1024 print_dbg("line length: %d\n", fbi->fix.line_length);
1025 print_dbg("bits_per_pixel: %d\n", fbi->var.bits_per_pixel);
1026 }
1027
1028 /*-------------------------------------------------------------------------*/
1029
1030 /* AU1200 framebuffer driver */
1031
1032 /* fb_check_var
1033 * Validate var settings with hardware restrictions and modify it if necessary
1034 */
1035 static int au1200fb_fb_check_var(struct fb_var_screeninfo *var,
1036 struct fb_info *fbi)
1037 {
1038 struct au1200fb_device *fbdev = fbi->par;
1039 u32 pixclock;
1040 int screen_size, plane;
1041
1042 plane = fbdev->plane;
1043
1044 /* Make sure that the mode respect all LCD controller and
1045 * panel restrictions. */
1046 var->xres = win->w[plane].xres;
1047 var->yres = win->w[plane].yres;
1048
1049 /* No need for virtual resolution support */
1050 var->xres_virtual = var->xres;
1051 var->yres_virtual = var->yres;
1052
1053 var->bits_per_pixel = winbpp(win->w[plane].mode_winctrl1);
1054
1055 screen_size = var->xres_virtual * var->yres_virtual;
1056 if (var->bits_per_pixel > 8) screen_size *= (var->bits_per_pixel / 8);
1057 else screen_size /= (8/var->bits_per_pixel);
1058
1059 if (fbdev->fb_len < screen_size)
1060 return -EINVAL; /* Virtual screen is to big, abort */
1061
1062 /* FIX!!!! what are the implicaitons of ignoring this for windows ??? */
1063 /* The max LCD clock is fixed to 48MHz (value of AUX_CLK). The pixel
1064 * clock can only be obtain by dividing this value by an even integer.
1065 * Fallback to a slower pixel clock if necessary. */
1066 pixclock = max((u32)(PICOS2KHZ(var->pixclock) * 1000), fbi->monspecs.dclkmin);
1067 pixclock = min3(pixclock, fbi->monspecs.dclkmax, (u32)AU1200_LCD_MAX_CLK/2);
1068
1069 if (AU1200_LCD_MAX_CLK % pixclock) {
1070 int diff = AU1200_LCD_MAX_CLK % pixclock;
1071 pixclock -= diff;
1072 }
1073
1074 var->pixclock = KHZ2PICOS(pixclock/1000);
1075 #if 0
1076 if (!panel_is_active(panel)) {
1077 int pcd = AU1200_LCD_MAX_CLK / (pixclock * 2) - 1;
1078
1079 if (!panel_is_color(panel)
1080 && (panel->control_base & LCD_CONTROL_MPI) && (pcd < 3)) {
1081 /* STN 8bit mono panel support is up to 6MHz pixclock */
1082 var->pixclock = KHZ2PICOS(6000);
1083 } else if (!pcd) {
1084 /* Other STN panel support is up to 12MHz */
1085 var->pixclock = KHZ2PICOS(12000);
1086 }
1087 }
1088 #endif
1089 /* Set bitfield accordingly */
1090 switch (var->bits_per_pixel) {
1091 case 16:
1092 {
1093 /* 16bpp True color.
1094 * These must be set to MATCH WINCTRL[FORM] */
1095 int idx;
1096 idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25;
1097 var->red = rgb_bitfields[idx][0];
1098 var->green = rgb_bitfields[idx][1];
1099 var->blue = rgb_bitfields[idx][2];
1100 var->transp = rgb_bitfields[idx][3];
1101 break;
1102 }
1103
1104 case 32:
1105 {
1106 /* 32bpp True color.
1107 * These must be set to MATCH WINCTRL[FORM] */
1108 int idx;
1109 idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25;
1110 var->red = rgb_bitfields[idx][0];
1111 var->green = rgb_bitfields[idx][1];
1112 var->blue = rgb_bitfields[idx][2];
1113 var->transp = rgb_bitfields[idx][3];
1114 break;
1115 }
1116 default:
1117 print_dbg("Unsupported depth %dbpp", var->bits_per_pixel);
1118 return -EINVAL;
1119 }
1120
1121 return 0;
1122 }
1123
1124 /* fb_set_par
1125 * Set hardware with var settings. This will enable the controller with a
1126 * specific mode, normally validated with the fb_check_var method
1127 */
1128 static int au1200fb_fb_set_par(struct fb_info *fbi)
1129 {
1130 struct au1200fb_device *fbdev = fbi->par;
1131
1132 au1200fb_update_fbinfo(fbi);
1133 au1200_setmode(fbdev);
1134
1135 return 0;
1136 }
1137
1138 /* fb_setcolreg
1139 * Set color in LCD palette.
1140 */
1141 static int au1200fb_fb_setcolreg(unsigned regno, unsigned red, unsigned green,
1142 unsigned blue, unsigned transp, struct fb_info *fbi)
1143 {
1144 volatile u32 *palette = lcd->palette;
1145 u32 value;
1146
1147 if (regno > (AU1200_LCD_NBR_PALETTE_ENTRIES - 1))
1148 return -EINVAL;
1149
1150 if (fbi->var.grayscale) {
1151 /* Convert color to grayscale */
1152 red = green = blue =
1153 (19595 * red + 38470 * green + 7471 * blue) >> 16;
1154 }
1155
1156 if (fbi->fix.visual == FB_VISUAL_TRUECOLOR) {
1157 /* Place color in the pseudopalette */
1158 if (regno > 16)
1159 return -EINVAL;
1160
1161 palette = (u32*) fbi->pseudo_palette;
1162
1163 red >>= (16 - fbi->var.red.length);
1164 green >>= (16 - fbi->var.green.length);
1165 blue >>= (16 - fbi->var.blue.length);
1166
1167 value = (red << fbi->var.red.offset) |
1168 (green << fbi->var.green.offset)|
1169 (blue << fbi->var.blue.offset);
1170 value &= 0xFFFF;
1171
1172 } else if (1 /*FIX!!! panel_is_active(fbdev->panel)*/) {
1173 /* COLOR TFT PALLETTIZED (use RGB 565) */
1174 value = (red & 0xF800)|((green >> 5) &
1175 0x07E0)|((blue >> 11) & 0x001F);
1176 value &= 0xFFFF;
1177
1178 } else if (0 /*panel_is_color(fbdev->panel)*/) {
1179 /* COLOR STN MODE */
1180 value = 0x1234;
1181 value &= 0xFFF;
1182 } else {
1183 /* MONOCHROME MODE */
1184 value = (green >> 12) & 0x000F;
1185 value &= 0xF;
1186 }
1187
1188 palette[regno] = value;
1189
1190 return 0;
1191 }
1192
1193 /* fb_blank
1194 * Blank the screen. Depending on the mode, the screen will be
1195 * activated with the backlight color, or desactivated
1196 */
1197 static int au1200fb_fb_blank(int blank_mode, struct fb_info *fbi)
1198 {
1199 struct au1200fb_device *fbdev = fbi->par;
1200
1201 /* Short-circuit screen blanking */
1202 if (noblanking)
1203 return 0;
1204
1205 switch (blank_mode) {
1206
1207 case FB_BLANK_UNBLANK:
1208 case FB_BLANK_NORMAL:
1209 /* printk("turn on panel\n"); */
1210 au1200_setpanel(panel, fbdev->pd);
1211 break;
1212 case FB_BLANK_VSYNC_SUSPEND:
1213 case FB_BLANK_HSYNC_SUSPEND:
1214 case FB_BLANK_POWERDOWN:
1215 /* printk("turn off panel\n"); */
1216 au1200_setpanel(NULL, fbdev->pd);
1217 break;
1218 default:
1219 break;
1220
1221 }
1222
1223 /* FB_BLANK_NORMAL is a soft blank */
1224 return (blank_mode == FB_BLANK_NORMAL) ? -EINVAL : 0;
1225 }
1226
1227 /* fb_mmap
1228 * Map video memory in user space. We don't use the generic fb_mmap
1229 * method mainly to allow the use of the TLB streaming flag (CCA=6)
1230 */
1231 static int au1200fb_fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
1232 {
1233 struct au1200fb_device *fbdev = info->par;
1234
1235 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
1236 pgprot_val(vma->vm_page_prot) |= _CACHE_MASK; /* CCA=7 */
1237
1238 return vm_iomap_memory(vma, fbdev->fb_phys, fbdev->fb_len);
1239 }
1240
1241 static void set_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata)
1242 {
1243
1244 unsigned int hi1, divider;
1245
1246 /* SCREEN_SIZE: user cannot reset size, must switch panel choice */
1247
1248 if (pdata->flags & SCREEN_BACKCOLOR)
1249 lcd->backcolor = pdata->backcolor;
1250
1251 if (pdata->flags & SCREEN_BRIGHTNESS) {
1252
1253 // limit brightness pwm duty to >= 30/1600
1254 if (pdata->brightness < 30) {
1255 pdata->brightness = 30;
1256 }
1257 divider = (lcd->pwmdiv & 0x3FFFF) + 1;
1258 hi1 = (((pdata->brightness & 0xFF)+1) * divider >> 8);
1259 lcd->pwmhi &= 0xFFFF;
1260 lcd->pwmhi |= (hi1 << 16);
1261 }
1262
1263 if (pdata->flags & SCREEN_COLORKEY)
1264 lcd->colorkey = pdata->colorkey;
1265
1266 if (pdata->flags & SCREEN_MASK)
1267 lcd->colorkeymsk = pdata->mask;
1268 wmb(); /* drain writebuffer */
1269 }
1270
1271 static void get_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata)
1272 {
1273 unsigned int hi1, divider;
1274
1275 pdata->xsize = ((lcd->screen & LCD_SCREEN_SX) >> 19) + 1;
1276 pdata->ysize = ((lcd->screen & LCD_SCREEN_SY) >> 8) + 1;
1277
1278 pdata->backcolor = lcd->backcolor;
1279 pdata->colorkey = lcd->colorkey;
1280 pdata->mask = lcd->colorkeymsk;
1281
1282 // brightness
1283 hi1 = (lcd->pwmhi >> 16) + 1;
1284 divider = (lcd->pwmdiv & 0x3FFFF) + 1;
1285 pdata->brightness = ((hi1 << 8) / divider) - 1;
1286 wmb(); /* drain writebuffer */
1287 }
1288
1289 static void set_window(unsigned int plane,
1290 struct au1200_lcd_window_regs_t *pdata)
1291 {
1292 unsigned int val, bpp;
1293
1294 /* Window control register 0 */
1295 if (pdata->flags & WIN_POSITION) {
1296 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_OX |
1297 LCD_WINCTRL0_OY);
1298 val |= ((pdata->xpos << 21) & LCD_WINCTRL0_OX);
1299 val |= ((pdata->ypos << 10) & LCD_WINCTRL0_OY);
1300 lcd->window[plane].winctrl0 = val;
1301 }
1302 if (pdata->flags & WIN_ALPHA_COLOR) {
1303 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_A);
1304 val |= ((pdata->alpha_color << 2) & LCD_WINCTRL0_A);
1305 lcd->window[plane].winctrl0 = val;
1306 }
1307 if (pdata->flags & WIN_ALPHA_MODE) {
1308 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_AEN);
1309 val |= ((pdata->alpha_mode << 1) & LCD_WINCTRL0_AEN);
1310 lcd->window[plane].winctrl0 = val;
1311 }
1312
1313 /* Window control register 1 */
1314 if (pdata->flags & WIN_PRIORITY) {
1315 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PRI);
1316 val |= ((pdata->priority << 30) & LCD_WINCTRL1_PRI);
1317 lcd->window[plane].winctrl1 = val;
1318 }
1319 if (pdata->flags & WIN_CHANNEL) {
1320 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PIPE);
1321 val |= ((pdata->channel << 29) & LCD_WINCTRL1_PIPE);
1322 lcd->window[plane].winctrl1 = val;
1323 }
1324 if (pdata->flags & WIN_BUFFER_FORMAT) {
1325 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_FRM);
1326 val |= ((pdata->buffer_format << 25) & LCD_WINCTRL1_FRM);
1327 lcd->window[plane].winctrl1 = val;
1328 }
1329 if (pdata->flags & WIN_COLOR_ORDER) {
1330 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_CCO);
1331 val |= ((pdata->color_order << 24) & LCD_WINCTRL1_CCO);
1332 lcd->window[plane].winctrl1 = val;
1333 }
1334 if (pdata->flags & WIN_PIXEL_ORDER) {
1335 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PO);
1336 val |= ((pdata->pixel_order << 22) & LCD_WINCTRL1_PO);
1337 lcd->window[plane].winctrl1 = val;
1338 }
1339 if (pdata->flags & WIN_SIZE) {
1340 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_SZX |
1341 LCD_WINCTRL1_SZY);
1342 val |= (((pdata->xsize << 11) - 1) & LCD_WINCTRL1_SZX);
1343 val |= (((pdata->ysize) - 1) & LCD_WINCTRL1_SZY);
1344 lcd->window[plane].winctrl1 = val;
1345 /* program buffer line width */
1346 bpp = winbpp(val) / 8;
1347 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_BX);
1348 val |= (((pdata->xsize * bpp) << 8) & LCD_WINCTRL2_BX);
1349 lcd->window[plane].winctrl2 = val;
1350 }
1351
1352 /* Window control register 2 */
1353 if (pdata->flags & WIN_COLORKEY_MODE) {
1354 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_CKMODE);
1355 val |= ((pdata->colorkey_mode << 24) & LCD_WINCTRL2_CKMODE);
1356 lcd->window[plane].winctrl2 = val;
1357 }
1358 if (pdata->flags & WIN_DOUBLE_BUFFER_MODE) {
1359 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_DBM);
1360 val |= ((pdata->double_buffer_mode << 23) & LCD_WINCTRL2_DBM);
1361 lcd->window[plane].winctrl2 = val;
1362 }
1363 if (pdata->flags & WIN_RAM_ARRAY_MODE) {
1364 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_RAM);
1365 val |= ((pdata->ram_array_mode << 21) & LCD_WINCTRL2_RAM);
1366 lcd->window[plane].winctrl2 = val;
1367 }
1368
1369 /* Buffer line width programmed with WIN_SIZE */
1370
1371 if (pdata->flags & WIN_BUFFER_SCALE) {
1372 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_SCX |
1373 LCD_WINCTRL2_SCY);
1374 val |= ((pdata->xsize << 11) & LCD_WINCTRL2_SCX);
1375 val |= ((pdata->ysize) & LCD_WINCTRL2_SCY);
1376 lcd->window[plane].winctrl2 = val;
1377 }
1378
1379 if (pdata->flags & WIN_ENABLE) {
1380 val = lcd->winenable;
1381 val &= ~(1<<plane);
1382 val |= (pdata->enable & 1) << plane;
1383 lcd->winenable = val;
1384 }
1385 wmb(); /* drain writebuffer */
1386 }
1387
1388 static void get_window(unsigned int plane,
1389 struct au1200_lcd_window_regs_t *pdata)
1390 {
1391 /* Window control register 0 */
1392 pdata->xpos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OX) >> 21;
1393 pdata->ypos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OY) >> 10;
1394 pdata->alpha_color = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_A) >> 2;
1395 pdata->alpha_mode = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_AEN) >> 1;
1396
1397 /* Window control register 1 */
1398 pdata->priority = (lcd->window[plane].winctrl1& LCD_WINCTRL1_PRI) >> 30;
1399 pdata->channel = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PIPE) >> 29;
1400 pdata->buffer_format = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_FRM) >> 25;
1401 pdata->color_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_CCO) >> 24;
1402 pdata->pixel_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PO) >> 22;
1403 pdata->xsize = ((lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZX) >> 11) + 1;
1404 pdata->ysize = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZY) + 1;
1405
1406 /* Window control register 2 */
1407 pdata->colorkey_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_CKMODE) >> 24;
1408 pdata->double_buffer_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_DBM) >> 23;
1409 pdata->ram_array_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_RAM) >> 21;
1410
1411 pdata->enable = (lcd->winenable >> plane) & 1;
1412 wmb(); /* drain writebuffer */
1413 }
1414
1415 static int au1200fb_ioctl(struct fb_info *info, unsigned int cmd,
1416 unsigned long arg)
1417 {
1418 struct au1200fb_device *fbdev = info->par;
1419 int plane;
1420 int val;
1421
1422 plane = fbinfo2index(info);
1423 print_dbg("au1200fb: ioctl %d on plane %d\n", cmd, plane);
1424
1425 if (cmd == AU1200_LCD_FB_IOCTL) {
1426 struct au1200_lcd_iodata_t iodata;
1427
1428 if (copy_from_user(&iodata, (void __user *) arg, sizeof(iodata)))
1429 return -EFAULT;
1430
1431 print_dbg("FB IOCTL called\n");
1432
1433 switch (iodata.subcmd) {
1434 case AU1200_LCD_SET_SCREEN:
1435 print_dbg("AU1200_LCD_SET_SCREEN\n");
1436 set_global(cmd, &iodata.global);
1437 break;
1438
1439 case AU1200_LCD_GET_SCREEN:
1440 print_dbg("AU1200_LCD_GET_SCREEN\n");
1441 get_global(cmd, &iodata.global);
1442 break;
1443
1444 case AU1200_LCD_SET_WINDOW:
1445 print_dbg("AU1200_LCD_SET_WINDOW\n");
1446 set_window(plane, &iodata.window);
1447 break;
1448
1449 case AU1200_LCD_GET_WINDOW:
1450 print_dbg("AU1200_LCD_GET_WINDOW\n");
1451 get_window(plane, &iodata.window);
1452 break;
1453
1454 case AU1200_LCD_SET_PANEL:
1455 print_dbg("AU1200_LCD_SET_PANEL\n");
1456 if ((iodata.global.panel_choice >= 0) &&
1457 (iodata.global.panel_choice <
1458 NUM_PANELS))
1459 {
1460 struct panel_settings *newpanel;
1461 panel_index = iodata.global.panel_choice;
1462 newpanel = &known_lcd_panels[panel_index];
1463 au1200_setpanel(newpanel, fbdev->pd);
1464 }
1465 break;
1466
1467 case AU1200_LCD_GET_PANEL:
1468 print_dbg("AU1200_LCD_GET_PANEL\n");
1469 iodata.global.panel_choice = panel_index;
1470 break;
1471
1472 default:
1473 return -EINVAL;
1474 }
1475
1476 val = copy_to_user((void __user *) arg, &iodata, sizeof(iodata));
1477 if (val) {
1478 print_dbg("error: could not copy %d bytes\n", val);
1479 return -EFAULT;
1480 }
1481 }
1482
1483 return 0;
1484 }
1485
1486
1487 static struct fb_ops au1200fb_fb_ops = {
1488 .owner = THIS_MODULE,
1489 .fb_check_var = au1200fb_fb_check_var,
1490 .fb_set_par = au1200fb_fb_set_par,
1491 .fb_setcolreg = au1200fb_fb_setcolreg,
1492 .fb_blank = au1200fb_fb_blank,
1493 .fb_fillrect = sys_fillrect,
1494 .fb_copyarea = sys_copyarea,
1495 .fb_imageblit = sys_imageblit,
1496 .fb_read = fb_sys_read,
1497 .fb_write = fb_sys_write,
1498 .fb_sync = NULL,
1499 .fb_ioctl = au1200fb_ioctl,
1500 .fb_mmap = au1200fb_fb_mmap,
1501 };
1502
1503 /*-------------------------------------------------------------------------*/
1504
1505 static irqreturn_t au1200fb_handle_irq(int irq, void* dev_id)
1506 {
1507 /* Nothing to do for now, just clear any pending interrupt */
1508 lcd->intstatus = lcd->intstatus;
1509 wmb(); /* drain writebuffer */
1510
1511 return IRQ_HANDLED;
1512 }
1513
1514 /*-------------------------------------------------------------------------*/
1515
1516 /* AU1200 LCD device probe helpers */
1517
1518 static int au1200fb_init_fbinfo(struct au1200fb_device *fbdev)
1519 {
1520 struct fb_info *fbi = fbdev->fb_info;
1521 int bpp, ret;
1522
1523 fbi->fbops = &au1200fb_fb_ops;
1524
1525 bpp = winbpp(win->w[fbdev->plane].mode_winctrl1);
1526
1527 /* Copy monitor specs from panel data */
1528 /* fixme: we're setting up LCD controller windows, so these dont give a
1529 damn as to what the monitor specs are (the panel itself does, but that
1530 isn't done here...so maybe need a generic catchall monitor setting??? */
1531 memcpy(&fbi->monspecs, &panel->monspecs, sizeof(struct fb_monspecs));
1532
1533 /* We first try the user mode passed in argument. If that failed,
1534 * or if no one has been specified, we default to the first mode of the
1535 * panel list. Note that after this call, var data will be set */
1536 if (!fb_find_mode(&fbi->var,
1537 fbi,
1538 NULL, /* drv_info.opt_mode, */
1539 fbi->monspecs.modedb,
1540 fbi->monspecs.modedb_len,
1541 fbi->monspecs.modedb,
1542 bpp)) {
1543
1544 print_err("Cannot find valid mode for panel %s", panel->name);
1545 return -EFAULT;
1546 }
1547
1548 fbi->pseudo_palette = kcalloc(16, sizeof(u32), GFP_KERNEL);
1549 if (!fbi->pseudo_palette)
1550 return -ENOMEM;
1551
1552 ret = fb_alloc_cmap(&fbi->cmap, AU1200_LCD_NBR_PALETTE_ENTRIES, 0);
1553 if (ret < 0) {
1554 print_err("Fail to allocate colormap (%d entries)",
1555 AU1200_LCD_NBR_PALETTE_ENTRIES);
1556 return ret;
1557 }
1558
1559 strncpy(fbi->fix.id, "AU1200", sizeof(fbi->fix.id));
1560 fbi->fix.smem_start = fbdev->fb_phys;
1561 fbi->fix.smem_len = fbdev->fb_len;
1562 fbi->fix.type = FB_TYPE_PACKED_PIXELS;
1563 fbi->fix.xpanstep = 0;
1564 fbi->fix.ypanstep = 0;
1565 fbi->fix.mmio_start = 0;
1566 fbi->fix.mmio_len = 0;
1567 fbi->fix.accel = FB_ACCEL_NONE;
1568
1569 fbi->screen_base = (char __iomem *) fbdev->fb_mem;
1570
1571 au1200fb_update_fbinfo(fbi);
1572
1573 return 0;
1574 }
1575
1576 /*-------------------------------------------------------------------------*/
1577
1578
1579 static int au1200fb_setup(struct au1200fb_platdata *pd)
1580 {
1581 char *options = NULL;
1582 char *this_opt, *endptr;
1583 int num_panels = ARRAY_SIZE(known_lcd_panels);
1584 int panel_idx = -1;
1585
1586 fb_get_options(DRIVER_NAME, &options);
1587
1588 if (!options)
1589 goto out;
1590
1591 while ((this_opt = strsep(&options, ",")) != NULL) {
1592 /* Panel option - can be panel name,
1593 * "bs" for board-switch, or number/index */
1594 if (!strncmp(this_opt, "panel:", 6)) {
1595 int i;
1596 long int li;
1597 char *endptr;
1598 this_opt += 6;
1599 /* First check for index, which allows
1600 * to short circuit this mess */
1601 li = simple_strtol(this_opt, &endptr, 0);
1602 if (*endptr == '\0')
1603 panel_idx = (int)li;
1604 else if (strcmp(this_opt, "bs") == 0)
1605 panel_idx = pd->panel_index();
1606 else {
1607 for (i = 0; i < num_panels; i++) {
1608 if (!strcmp(this_opt,
1609 known_lcd_panels[i].name)) {
1610 panel_idx = i;
1611 break;
1612 }
1613 }
1614 }
1615 if ((panel_idx < 0) || (panel_idx >= num_panels))
1616 print_warn("Panel %s not supported!", this_opt);
1617 else
1618 panel_index = panel_idx;
1619
1620 } else if (strncmp(this_opt, "nohwcursor", 10) == 0)
1621 nohwcursor = 1;
1622 else if (strncmp(this_opt, "devices:", 8) == 0) {
1623 this_opt += 8;
1624 device_count = simple_strtol(this_opt, &endptr, 0);
1625 if ((device_count < 0) ||
1626 (device_count > MAX_DEVICE_COUNT))
1627 device_count = MAX_DEVICE_COUNT;
1628 } else if (strncmp(this_opt, "wincfg:", 7) == 0) {
1629 this_opt += 7;
1630 window_index = simple_strtol(this_opt, &endptr, 0);
1631 if ((window_index < 0) ||
1632 (window_index >= ARRAY_SIZE(windows)))
1633 window_index = DEFAULT_WINDOW_INDEX;
1634 } else if (strncmp(this_opt, "off", 3) == 0)
1635 return 1;
1636 else
1637 print_warn("Unsupported option \"%s\"", this_opt);
1638 }
1639
1640 out:
1641 return 0;
1642 }
1643
1644 /* AU1200 LCD controller device driver */
1645 static int au1200fb_drv_probe(struct platform_device *dev)
1646 {
1647 struct au1200fb_device *fbdev;
1648 struct au1200fb_platdata *pd;
1649 struct fb_info *fbi = NULL;
1650 unsigned long page;
1651 int bpp, plane, ret, irq;
1652
1653 print_info("" DRIVER_DESC "");
1654
1655 pd = dev->dev.platform_data;
1656 if (!pd)
1657 return -ENODEV;
1658
1659 /* Setup driver with options */
1660 if (au1200fb_setup(pd))
1661 return -ENODEV;
1662
1663 /* Point to the panel selected */
1664 panel = &known_lcd_panels[panel_index];
1665 win = &windows[window_index];
1666
1667 printk(DRIVER_NAME ": Panel %d %s\n", panel_index, panel->name);
1668 printk(DRIVER_NAME ": Win %d %s\n", window_index, win->name);
1669
1670 for (plane = 0; plane < device_count; ++plane) {
1671 bpp = winbpp(win->w[plane].mode_winctrl1);
1672 if (win->w[plane].xres == 0)
1673 win->w[plane].xres = panel->Xres;
1674 if (win->w[plane].yres == 0)
1675 win->w[plane].yres = panel->Yres;
1676
1677 fbi = framebuffer_alloc(sizeof(struct au1200fb_device),
1678 &dev->dev);
1679 if (!fbi) {
1680 ret = -ENOMEM;
1681 goto failed;
1682 }
1683
1684 _au1200fb_infos[plane] = fbi;
1685 fbdev = fbi->par;
1686 fbdev->fb_info = fbi;
1687 fbdev->pd = pd;
1688
1689 fbdev->plane = plane;
1690
1691 /* Allocate the framebuffer to the maximum screen size */
1692 fbdev->fb_len = (win->w[plane].xres * win->w[plane].yres * bpp) / 8;
1693
1694 fbdev->fb_mem = dmam_alloc_attrs(&dev->dev,
1695 PAGE_ALIGN(fbdev->fb_len),
1696 &fbdev->fb_phys, GFP_KERNEL,
1697 DMA_ATTR_NON_CONSISTENT);
1698 if (!fbdev->fb_mem) {
1699 print_err("fail to allocate frambuffer (size: %dK))",
1700 fbdev->fb_len / 1024);
1701 ret = -ENOMEM;
1702 goto failed;
1703 }
1704
1705 /*
1706 * Set page reserved so that mmap will work. This is necessary
1707 * since we'll be remapping normal memory.
1708 */
1709 for (page = (unsigned long)fbdev->fb_phys;
1710 page < PAGE_ALIGN((unsigned long)fbdev->fb_phys +
1711 fbdev->fb_len);
1712 page += PAGE_SIZE) {
1713 SetPageReserved(pfn_to_page(page >> PAGE_SHIFT)); /* LCD DMA is NOT coherent on Au1200 */
1714 }
1715 print_dbg("Framebuffer memory map at %p", fbdev->fb_mem);
1716 print_dbg("phys=0x%08x, size=%dK", fbdev->fb_phys, fbdev->fb_len / 1024);
1717
1718 /* Init FB data */
1719 ret = au1200fb_init_fbinfo(fbdev);
1720 if (ret < 0)
1721 goto failed;
1722
1723 /* Register new framebuffer */
1724 ret = register_framebuffer(fbi);
1725 if (ret < 0) {
1726 print_err("cannot register new framebuffer");
1727 goto failed;
1728 }
1729
1730 au1200fb_fb_set_par(fbi);
1731
1732 #if !defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_LOGO)
1733 if (plane == 0)
1734 if (fb_prepare_logo(fbi, FB_ROTATE_UR)) {
1735 /* Start display and show logo on boot */
1736 fb_set_cmap(&fbi->cmap, fbi);
1737 fb_show_logo(fbi, FB_ROTATE_UR);
1738 }
1739 #endif
1740 }
1741
1742 /* Now hook interrupt too */
1743 irq = platform_get_irq(dev, 0);
1744 ret = request_irq(irq, au1200fb_handle_irq,
1745 IRQF_SHARED, "lcd", (void *)dev);
1746 if (ret) {
1747 print_err("fail to request interrupt line %d (err: %d)",
1748 irq, ret);
1749 goto failed;
1750 }
1751
1752 platform_set_drvdata(dev, pd);
1753
1754 /* Kickstart the panel */
1755 au1200_setpanel(panel, pd);
1756
1757 return 0;
1758
1759 failed:
1760 for (plane = 0; plane < device_count; ++plane) {
1761 fbi = _au1200fb_infos[plane];
1762 if (!fbi)
1763 break;
1764
1765 /* Clean up all probe data */
1766 unregister_framebuffer(fbi);
1767 if (fbi->cmap.len != 0)
1768 fb_dealloc_cmap(&fbi->cmap);
1769 kfree(fbi->pseudo_palette);
1770
1771 framebuffer_release(fbi);
1772 _au1200fb_infos[plane] = NULL;
1773 }
1774 return ret;
1775 }
1776
1777 static int au1200fb_drv_remove(struct platform_device *dev)
1778 {
1779 struct au1200fb_platdata *pd = platform_get_drvdata(dev);
1780 struct fb_info *fbi;
1781 int plane;
1782
1783 /* Turn off the panel */
1784 au1200_setpanel(NULL, pd);
1785
1786 for (plane = 0; plane < device_count; ++plane) {
1787 fbi = _au1200fb_infos[plane];
1788
1789 /* Clean up all probe data */
1790 unregister_framebuffer(fbi);
1791 if (fbi->cmap.len != 0)
1792 fb_dealloc_cmap(&fbi->cmap);
1793 kfree(fbi->pseudo_palette);
1794
1795 framebuffer_release(fbi);
1796 _au1200fb_infos[plane] = NULL;
1797 }
1798
1799 free_irq(platform_get_irq(dev, 0), (void *)dev);
1800
1801 return 0;
1802 }
1803
1804 #ifdef CONFIG_PM
1805 static int au1200fb_drv_suspend(struct device *dev)
1806 {
1807 struct au1200fb_platdata *pd = dev_get_drvdata(dev);
1808 au1200_setpanel(NULL, pd);
1809
1810 lcd->outmask = 0;
1811 wmb(); /* drain writebuffer */
1812
1813 return 0;
1814 }
1815
1816 static int au1200fb_drv_resume(struct device *dev)
1817 {
1818 struct au1200fb_platdata *pd = dev_get_drvdata(dev);
1819 struct fb_info *fbi;
1820 int i;
1821
1822 /* Kickstart the panel */
1823 au1200_setpanel(panel, pd);
1824
1825 for (i = 0; i < device_count; i++) {
1826 fbi = _au1200fb_infos[i];
1827 au1200fb_fb_set_par(fbi);
1828 }
1829
1830 return 0;
1831 }
1832
1833 static const struct dev_pm_ops au1200fb_pmops = {
1834 .suspend = au1200fb_drv_suspend,
1835 .resume = au1200fb_drv_resume,
1836 .freeze = au1200fb_drv_suspend,
1837 .thaw = au1200fb_drv_resume,
1838 };
1839
1840 #define AU1200FB_PMOPS (&au1200fb_pmops)
1841
1842 #else
1843 #define AU1200FB_PMOPS NULL
1844 #endif /* CONFIG_PM */
1845
1846 static struct platform_driver au1200fb_driver = {
1847 .driver = {
1848 .name = "au1200-lcd",
1849 .pm = AU1200FB_PMOPS,
1850 },
1851 .probe = au1200fb_drv_probe,
1852 .remove = au1200fb_drv_remove,
1853 };
1854 module_platform_driver(au1200fb_driver);
1855
1856 MODULE_DESCRIPTION(DRIVER_DESC);
1857 MODULE_LICENSE("GPL");
Linux with added FPC-III support