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authorRalf Baechle <ralf@linux-mips.org>2006-03-27 04:17:27 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-27 11:44:55 -0500
commitf95ec3c6df271ae4e6290cd6b95c18a009c76dc9 (patch)
treede6c44709c312ea1d9708c0daeebf07c379a2c5e /drivers/video/au1200fb.c
parentd03c21ec0be7787ff6b75dcf56c0e96209ccbfbd (diff)
[PATCH] au1200fb: Alchemy Au1200 framebuffer driver
Add support for Alchemy Au1200 framebuffer driver Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/video/au1200fb.c')
-rw-r--r--drivers/video/au1200fb.c3844
1 files changed, 3844 insertions, 0 deletions
diff --git a/drivers/video/au1200fb.c b/drivers/video/au1200fb.c
new file mode 100644
index 000000000000..b367de30b98c
--- /dev/null
+++ b/drivers/video/au1200fb.c
@@ -0,0 +1,3844 @@
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
87struct 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
115struct 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
137struct 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) */
151struct 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
160static 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
175static struct au1200_lcd *lcd = (struct au1200_lcd *) AU1200_LCD_ADDR;
176static int window_index = 2; /* default is zero */
177static int panel_index = 2; /* default is zero */
178static struct window_settings *win;
179static struct panel_settings *panel;
180static int noblanking = 1;
181static int nohwcursor = 0;
182
183struct 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
204extern int board_au1200fb_panel_init (void);
205extern int board_au1200fb_panel_shutdown (void);
206
207#ifdef CONFIG_PM
208int au1200fb_pm_callback(au1xxx_power_dev_t *dev,
209 au1xxx_request_t request, void *data);
210au1xxx_power_dev_t *LCD_pm_dev;
211#endif
212
213/*
214 * Default window configurations
215 */
216static 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
325struct 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 */
367static 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
655static 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
673static 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
710static 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
722static 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
792static 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
950static 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. */
981static 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
1015static 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 */
1049static 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 */
1142static 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 */
1155static 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 */
1211static 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 */
1243static 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
1282static 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
1313static 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
1331static 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
1430static 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
1457static 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
1532static 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
1548static irqreturn_t au1200fb_handle_irq(int irq, void* dev_id, struct pt_regs *regs)
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
1561static 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 = kmalloc(sizeof(u32) * 16, GFP_KERNEL);
1593 if (!fbi->pseudo_palette) {
1594 return -ENOMEM;
1595 }
1596 memset(fbi->pseudo_palette, 0, sizeof(u32) * 16);
1597
1598 if (fb_alloc_cmap(&fbi->cmap, AU1200_LCD_NBR_PALETTE_ENTRIES, 0) < 0) {
1599 print_err("Fail to allocate colormap (%d entries)",
1600 AU1200_LCD_NBR_PALETTE_ENTRIES);
1601 kfree(fbi->pseudo_palette);
1602 return -EFAULT;
1603 }
1604
1605 strncpy(fbi->fix.id, "AU1200", sizeof(fbi->fix.id));
1606 fbi->fix.smem_start = fbdev->fb_phys;
1607 fbi->fix.smem_len = fbdev->fb_len;
1608 fbi->fix.type = FB_TYPE_PACKED_PIXELS;
1609 fbi->fix.xpanstep = 0;
1610 fbi->fix.ypanstep = 0;
1611 fbi->fix.mmio_start = 0;
1612 fbi->fix.mmio_len = 0;
1613 fbi->fix.accel = FB_ACCEL_NONE;
1614
1615 fbi->screen_base = (char __iomem *) fbdev->fb_mem;
1616
1617 au1200fb_update_fbinfo(fbi);
1618
1619 return 0;
1620}
1621
1622/*-------------------------------------------------------------------------*/
1623
1624/* AU1200 LCD controller device driver */
1625
1626static int au1200fb_drv_probe(struct device *dev)
1627{
1628 struct au1200fb_device *fbdev;
1629 unsigned long page;
1630 int bpp, plane, ret;
1631
1632 if (!dev)
1633 return -EINVAL;
1634
1635 for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane) {
1636 bpp = winbpp(win->w[plane].mode_winctrl1);
1637 if (win->w[plane].xres == 0)
1638 win->w[plane].xres = panel->Xres;
1639 if (win->w[plane].yres == 0)
1640 win->w[plane].yres = panel->Yres;
1641
1642 fbdev = &_au1200fb_devices[plane];
1643 memset(fbdev, 0, sizeof(struct au1200fb_device));
1644 fbdev->plane = plane;
1645
1646 /* Allocate the framebuffer to the maximum screen size */
1647 fbdev->fb_len = (win->w[plane].xres * win->w[plane].yres * bpp) / 8;
1648
1649 fbdev->fb_mem = dma_alloc_noncoherent(dev,
1650 PAGE_ALIGN(fbdev->fb_len),
1651 &fbdev->fb_phys, GFP_KERNEL);
1652 if (!fbdev->fb_mem) {
1653 print_err("fail to allocate frambuffer (size: %dK))",
1654 fbdev->fb_len / 1024);
1655 return -ENOMEM;
1656 }
1657
1658 /*
1659 * Set page reserved so that mmap will work. This is necessary
1660 * since we'll be remapping normal memory.
1661 */
1662 for (page = (unsigned long)fbdev->fb_phys;
1663 page < PAGE_ALIGN((unsigned long)fbdev->fb_phys +
1664 fbdev->fb_len);
1665 page += PAGE_SIZE) {
1666 SetPageReserved(pfn_to_page(page >> PAGE_SHIFT)); /* LCD DMA is NOT coherent on Au1200 */
1667 }
1668 print_dbg("Framebuffer memory map at %p", fbdev->fb_mem);
1669 print_dbg("phys=0x%08x, size=%dK", fbdev->fb_phys, fbdev->fb_len / 1024);
1670
1671 /* Init FB data */
1672 if ((ret = au1200fb_init_fbinfo(fbdev)) < 0)
1673 goto failed;
1674
1675 /* Register new framebuffer */
1676 if ((ret = register_framebuffer(&fbdev->fb_info)) < 0) {
1677 print_err("cannot register new framebuffer");
1678 goto failed;
1679 }
1680
1681 au1200fb_fb_set_par(&fbdev->fb_info);
1682
1683#if !defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_LOGO)
1684 if (plane == 0)
1685 if (fb_prepare_logo(&fbdev->fb_info, FB_ROTATE_UR)) {
1686 /* Start display and show logo on boot */
1687 fb_set_cmap(&fbdev->fb_info.cmap,
1688 &fbdev->fb_info);
1689
1690 fb_show_logo(&fbdev->fb_info, FB_ROTATE_UR);
1691 }
1692#endif
1693 }
1694
1695 /* Now hook interrupt too */
1696 if ((ret = request_irq(AU1200_LCD_INT, au1200fb_handle_irq,
1697 SA_INTERRUPT | SA_SHIRQ, "lcd", (void *)dev)) < 0) {
1698 print_err("fail to request interrupt line %d (err: %d)",
1699 AU1200_LCD_INT, ret);
1700 goto failed;
1701 }
1702
1703 return 0;
1704
1705failed:
1706 /* NOTE: This only does the current plane/window that failed; others are still active */
1707 if (fbdev->fb_mem)
1708 dma_free_noncoherent(dev, PAGE_ALIGN(fbdev->fb_len),
1709 fbdev->fb_mem, fbdev->fb_phys);
1710 if (fbdev->fb_info.cmap.len != 0)
1711 fb_dealloc_cmap(&fbdev->fb_info.cmap);
1712 if (fbdev->fb_info.pseudo_palette)
1713 kfree(fbdev->fb_info.pseudo_palette);
1714 if (plane == 0)
1715 free_irq(AU1200_LCD_INT, (void*)dev);
1716 return ret;
1717}
1718
1719static int au1200fb_drv_remove(struct device *dev)
1720{
1721 struct au1200fb_device *fbdev;
1722 int plane;
1723
1724 if (!dev)
1725 return -ENODEV;
1726
1727 /* Turn off the panel */
1728 au1200_setpanel(NULL);
1729
1730 for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane)
1731 {
1732 fbdev = &_au1200fb_devices[plane];
1733
1734 /* Clean up all probe data */
1735 unregister_framebuffer(&fbdev->fb_info);
1736 if (fbdev->fb_mem)
1737 dma_free_noncoherent(dev, PAGE_ALIGN(fbdev->fb_len),
1738 fbdev->fb_mem, fbdev->fb_phys);
1739 if (fbdev->fb_info.cmap.len != 0)
1740 fb_dealloc_cmap(&fbdev->fb_info.cmap);
1741 if (fbdev->fb_info.pseudo_palette)
1742 kfree(fbdev->fb_info.pseudo_palette);
1743 }
1744
1745 free_irq(AU1200_LCD_INT, (void *)dev);
1746
1747 return 0;
1748}
1749
1750#ifdef CONFIG_PM
1751static int au1200fb_drv_suspend(struct device *dev, u32 state, u32 level)
1752{
1753 /* TODO */
1754 return 0;
1755}
1756
1757static int au1200fb_drv_resume(struct device *dev, u32 level)
1758{
1759 /* TODO */
1760 return 0;
1761}
1762#endif /* CONFIG_PM */
1763
1764static struct device_driver au1200fb_driver = {
1765 .name = "au1200-lcd",
1766 .bus = &platform_bus_type,
1767 .probe = au1200fb_drv_probe,
1768 .remove = au1200fb_drv_remove,
1769#ifdef CONFIG_PM
1770 .suspend = au1200fb_drv_suspend,
1771 .resume = au1200fb_drv_resume,
1772#endif
1773};
1774
1775/*-------------------------------------------------------------------------*/
1776
1777/* Kernel driver */
1778
1779static void au1200fb_setup(void)
1780{
1781 char* options = NULL;
1782 char* this_opt;
1783 int num_panels = ARRAY_SIZE(known_lcd_panels);
1784 int panel_idx = -1;
1785
1786 fb_get_options(DRIVER_NAME, &options);
1787
1788 if (options) {
1789 while ((this_opt = strsep(&options,",")) != NULL) {
1790 /* Panel option - can be panel name,
1791 * "bs" for board-switch, or number/index */
1792 if (!strncmp(this_opt, "panel:", 6)) {
1793 int i;
1794 long int li;
1795 char *endptr;
1796 this_opt += 6;
1797 /* First check for index, which allows
1798 * to short circuit this mess */
1799 li = simple_strtol(this_opt, &endptr, 0);
1800 if (*endptr == '\0') {
1801 panel_idx = (int)li;
1802 }
1803 else if (strcmp(this_opt, "bs") == 0) {
1804 extern int board_au1200fb_panel(void);
1805 panel_idx = board_au1200fb_panel();
1806 }
1807
1808 else
1809 for (i = 0; i < num_panels; i++) {
1810 if (!strcmp(this_opt, known_lcd_panels[i].name)) {
1811 panel_idx = i;
1812 break;
1813 }
1814 }
1815
1816 if ((panel_idx < 0) || (panel_idx >= num_panels)) {
1817 print_warn("Panel %s not supported!", this_opt);
1818 }
1819 else
1820 panel_index = panel_idx;
1821 }
1822
1823 else if (strncmp(this_opt, "nohwcursor", 10) == 0) {
1824 nohwcursor = 1;
1825 }
1826
1827 /* Unsupported option */
1828 else {
1829 print_warn("Unsupported option \"%s\"", this_opt);
1830 }
1831 }
1832 }
1833}
1834
1835#ifdef CONFIG_PM
1836static int au1200fb_pm_callback(au1xxx_power_dev_t *dev,
1837 au1xxx_request_t request, void *data) {
1838 int retval = -1;
1839 unsigned int d = 0;
1840 unsigned int brightness = 0;
1841
1842 if (request == AU1XXX_PM_SLEEP) {
1843 board_au1200fb_panel_shutdown();
1844 }
1845 else if (request == AU1XXX_PM_WAKEUP) {
1846 if(dev->prev_state == SLEEP_STATE)
1847 {
1848 int plane;
1849 au1200_setpanel(panel);
1850 for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane) {
1851 struct au1200fb_device *fbdev;
1852 fbdev = &_au1200fb_devices[plane];
1853 au1200fb_fb_set_par(&fbdev->fb_info);
1854 }
1855 }
1856
1857 d = *((unsigned int*)data);
1858 if(d <=10) brightness = 26;
1859 else if(d<=20) brightness = 51;
1860 else if(d<=30) brightness = 77;
1861 else if(d<=40) brightness = 102;
1862 else if(d<=50) brightness = 128;
1863 else if(d<=60) brightness = 153;
1864 else if(d<=70) brightness = 179;
1865 else if(d<=80) brightness = 204;
1866 else if(d<=90) brightness = 230;
1867 else brightness = 255;
1868 set_brightness(brightness);
1869 } else if (request == AU1XXX_PM_GETSTATUS) {
1870 return dev->cur_state;
1871 } else if (request == AU1XXX_PM_ACCESS) {
1872 if (dev->cur_state != SLEEP_STATE)
1873 return retval;
1874 else {
1875 au1200_setpanel(panel);
1876 }
1877 } else if (request == AU1XXX_PM_IDLE) {
1878 } else if (request == AU1XXX_PM_CLEANUP) {
1879 }
1880
1881 return retval;
1882}
1883#endif
1884
1885static int __init au1200fb_init(void)
1886{
1887 print_info("" DRIVER_DESC "");
1888
1889 /* Setup driver with options */
1890 au1200fb_setup();
1891
1892 /* Point to the panel selected */
1893 panel = &known_lcd_panels[panel_index];
1894 win = &windows[window_index];
1895
1896 printk(DRIVER_NAME ": Panel %d %s\n", panel_index, panel->name);
1897 printk(DRIVER_NAME ": Win %d %s\n", window_index, win->name);
1898
1899 /* Kickstart the panel, the framebuffers/windows come soon enough */
1900 au1200_setpanel(panel);
1901
1902 #ifdef CONFIG_PM
1903 LCD_pm_dev = new_au1xxx_power_device("LCD", &au1200fb_pm_callback, NULL);
1904 if ( LCD_pm_dev == NULL)
1905 printk(KERN_INFO "Unable to create a power management device entry for the au1200fb.\n");
1906 else
1907 printk(KERN_INFO "Power management device entry for the au1200fb loaded.\n");
1908 #endif
1909
1910 return driver_register(&au1200fb_driver);
1911}
1912
1913static void __exit au1200fb_cleanup(void)
1914{
1915 driver_unregister(&au1200fb_driver);
1916}
1917
1918module_init(au1200fb_init);
1919module_exit(au1200fb_cleanup);
1920
1921MODULE_DESCRIPTION(DRIVER_DESC);
1922MODULE_LICENSE("GPL");
1923/*
1924 * BRIEF MODULE DESCRIPTION
1925 * Au1200 LCD Driver.
1926 *
1927 * Copyright 2004-2005 AMD
1928 * Author: AMD
1929 *
1930 * Based on:
1931 * linux/drivers/video/skeletonfb.c -- Skeleton for a frame buffer device
1932 * Created 28 Dec 1997 by Geert Uytterhoeven
1933 *
1934 * This program is free software; you can redistribute it and/or modify it
1935 * under the terms of the GNU General Public License as published by the
1936 * Free Software Foundation; either version 2 of the License, or (at your
1937 * option) any later version.
1938 *
1939 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
1940 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
1941 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
1942 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
1943 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
1944 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
1945 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
1946 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
1947 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
1948 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1949 *
1950 * You should have received a copy of the GNU General Public License along
1951 * with this program; if not, write to the Free Software Foundation, Inc.,
1952 * 675 Mass Ave, Cambridge, MA 02139, USA.
1953 */
1954
1955#include <linux/module.h>
1956#include <linux/platform_device.h>
1957#include <linux/kernel.h>
1958#include <linux/errno.h>
1959#include <linux/string.h>
1960#include <linux/mm.h>
1961#include <linux/fb.h>
1962#include <linux/init.h>
1963#include <linux/interrupt.h>
1964#include <linux/ctype.h>
1965#include <linux/dma-mapping.h>
1966
1967#include <asm/mach-au1x00/au1000.h>
1968#include "au1200fb.h"
1969
1970#ifdef CONFIG_PM
1971#include <asm/mach-au1x00/au1xxx_pm.h>
1972#endif
1973
1974#ifndef CONFIG_FB_AU1200_DEVS
1975#define CONFIG_FB_AU1200_DEVS 4
1976#endif
1977
1978#define DRIVER_NAME "au1200fb"
1979#define DRIVER_DESC "LCD controller driver for AU1200 processors"
1980
1981#define DEBUG 1
1982
1983#define print_err(f, arg...) printk(KERN_ERR DRIVER_NAME ": " f "\n", ## arg)
1984#define print_warn(f, arg...) printk(KERN_WARNING DRIVER_NAME ": " f "\n", ## arg)
1985#define print_info(f, arg...) printk(KERN_INFO DRIVER_NAME ": " f "\n", ## arg)
1986
1987#if DEBUG
1988#define print_dbg(f, arg...) printk(KERN_DEBUG __FILE__ ": " f "\n", ## arg)
1989#else
1990#define print_dbg(f, arg...) do {} while (0)
1991#endif
1992
1993
1994#define AU1200_LCD_FB_IOCTL 0x46FF
1995
1996#define AU1200_LCD_SET_SCREEN 1
1997#define AU1200_LCD_GET_SCREEN 2
1998#define AU1200_LCD_SET_WINDOW 3
1999#define AU1200_LCD_GET_WINDOW 4
2000#define AU1200_LCD_SET_PANEL 5
2001#define AU1200_LCD_GET_PANEL 6
2002
2003#define SCREEN_SIZE (1<< 1)
2004#define SCREEN_BACKCOLOR (1<< 2)
2005#define SCREEN_BRIGHTNESS (1<< 3)
2006#define SCREEN_COLORKEY (1<< 4)
2007#define SCREEN_MASK (1<< 5)
2008
2009struct au1200_lcd_global_regs_t {
2010 unsigned int flags;
2011 unsigned int xsize;
2012 unsigned int ysize;
2013 unsigned int backcolor;
2014 unsigned int brightness;
2015 unsigned int colorkey;
2016 unsigned int mask;
2017 unsigned int panel_choice;
2018 char panel_desc[80];
2019
2020};
2021
2022#define WIN_POSITION (1<< 0)
2023#define WIN_ALPHA_COLOR (1<< 1)
2024#define WIN_ALPHA_MODE (1<< 2)
2025#define WIN_PRIORITY (1<< 3)
2026#define WIN_CHANNEL (1<< 4)
2027#define WIN_BUFFER_FORMAT (1<< 5)
2028#define WIN_COLOR_ORDER (1<< 6)
2029#define WIN_PIXEL_ORDER (1<< 7)
2030#define WIN_SIZE (1<< 8)
2031#define WIN_COLORKEY_MODE (1<< 9)
2032#define WIN_DOUBLE_BUFFER_MODE (1<< 10)
2033#define WIN_RAM_ARRAY_MODE (1<< 11)
2034#define WIN_BUFFER_SCALE (1<< 12)
2035#define WIN_ENABLE (1<< 13)
2036
2037struct au1200_lcd_window_regs_t {
2038 unsigned int flags;
2039 unsigned int xpos;
2040 unsigned int ypos;
2041 unsigned int alpha_color;
2042 unsigned int alpha_mode;
2043 unsigned int priority;
2044 unsigned int channel;
2045 unsigned int buffer_format;
2046 unsigned int color_order;
2047 unsigned int pixel_order;
2048 unsigned int xsize;
2049 unsigned int ysize;
2050 unsigned int colorkey_mode;
2051 unsigned int double_buffer_mode;
2052 unsigned int ram_array_mode;
2053 unsigned int xscale;
2054 unsigned int yscale;
2055 unsigned int enable;
2056};
2057
2058
2059struct au1200_lcd_iodata_t {
2060 unsigned int subcmd;
2061 struct au1200_lcd_global_regs_t global;
2062 struct au1200_lcd_window_regs_t window;
2063};
2064
2065#if defined(__BIG_ENDIAN)
2066#define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_11
2067#else
2068#define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_00
2069#endif
2070#define LCD_CONTROL_DEFAULT_SBPPF LCD_CONTROL_SBPPF_565
2071
2072/* Private, per-framebuffer management information (independent of the panel itself) */
2073struct au1200fb_device {
2074 struct fb_info fb_info; /* FB driver info record */
2075
2076 int plane;
2077 unsigned char* fb_mem; /* FrameBuffer memory map */
2078 unsigned int fb_len;
2079 dma_addr_t fb_phys;
2080};
2081
2082static struct au1200fb_device _au1200fb_devices[CONFIG_FB_AU1200_DEVS];
2083/********************************************************************/
2084
2085/* LCD controller restrictions */
2086#define AU1200_LCD_MAX_XRES 1280
2087#define AU1200_LCD_MAX_YRES 1024
2088#define AU1200_LCD_MAX_BPP 32
2089#define AU1200_LCD_MAX_CLK 96000000 /* fixme: this needs to go away ? */
2090#define AU1200_LCD_NBR_PALETTE_ENTRIES 256
2091
2092/* Default number of visible screen buffer to allocate */
2093#define AU1200FB_NBR_VIDEO_BUFFERS 1
2094
2095/********************************************************************/
2096
2097static struct au1200_lcd *lcd = (struct au1200_lcd *) AU1200_LCD_ADDR;
2098static int window_index = 2; /* default is zero */
2099static int panel_index = 2; /* default is zero */
2100static struct window_settings *win;
2101static struct panel_settings *panel;
2102static int noblanking = 1;
2103static int nohwcursor = 0;
2104
2105struct window_settings {
2106 unsigned char name[64];
2107 uint32 mode_backcolor;
2108 uint32 mode_colorkey;
2109 uint32 mode_colorkeymsk;
2110 struct {
2111 int xres;
2112 int yres;
2113 int xpos;
2114 int ypos;
2115 uint32 mode_winctrl1; /* winctrl1[FRM,CCO,PO,PIPE] */
2116 uint32 mode_winenable;
2117 } w[4];
2118};
2119
2120#if defined(__BIG_ENDIAN)
2121#define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_00
2122#else
2123#define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_01
2124#endif
2125
2126extern int board_au1200fb_panel_init (void);
2127extern int board_au1200fb_panel_shutdown (void);
2128
2129#ifdef CONFIG_PM
2130int au1200fb_pm_callback(au1xxx_power_dev_t *dev,
2131 au1xxx_request_t request, void *data);
2132au1xxx_power_dev_t *LCD_pm_dev;
2133#endif
2134
2135/*
2136 * Default window configurations
2137 */
2138static struct window_settings windows[] = {
2139 { /* Index 0 */
2140 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
2141 /* mode_backcolor */ 0x006600ff,
2142 /* mode_colorkey,msk*/ 0, 0,
2143 {
2144 {
2145 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
2146 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
2147 LCD_WINCTRL1_PO_16BPP,
2148 /* mode_winenable*/ LCD_WINENABLE_WEN0,
2149 },
2150 {
2151 /* xres, yres, xpos, ypos */ 100, 100, 100, 100,
2152 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
2153 LCD_WINCTRL1_PO_16BPP |
2154 LCD_WINCTRL1_PIPE,
2155 /* mode_winenable*/ LCD_WINENABLE_WEN1,
2156 },
2157 {
2158 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
2159 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
2160 LCD_WINCTRL1_PO_16BPP,
2161 /* mode_winenable*/ 0,
2162 },
2163 {
2164 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
2165 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
2166 LCD_WINCTRL1_PO_16BPP |
2167 LCD_WINCTRL1_PIPE,
2168 /* mode_winenable*/ 0,
2169 },
2170 },
2171 },
2172
2173 { /* Index 1 */
2174 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
2175 /* mode_backcolor */ 0x006600ff,
2176 /* mode_colorkey,msk*/ 0, 0,
2177 {
2178 {
2179 /* xres, yres, xpos, ypos */ 320, 240, 5, 5,
2180 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_24BPP |
2181 LCD_WINCTRL1_PO_00,
2182 /* mode_winenable*/ LCD_WINENABLE_WEN0,
2183 },
2184 {
2185 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
2186 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565
2187 | LCD_WINCTRL1_PO_16BPP,
2188 /* mode_winenable*/ 0,
2189 },
2190 {
2191 /* xres, yres, xpos, ypos */ 100, 100, 0, 0,
2192 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
2193 LCD_WINCTRL1_PO_16BPP |
2194 LCD_WINCTRL1_PIPE,
2195 /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/,
2196 },
2197 {
2198 /* xres, yres, xpos, ypos */ 200, 25, 0, 0,
2199 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
2200 LCD_WINCTRL1_PO_16BPP |
2201 LCD_WINCTRL1_PIPE,
2202 /* mode_winenable*/ 0,
2203 },
2204 },
2205 },
2206 { /* Index 2 */
2207 "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx",
2208 /* mode_backcolor */ 0x006600ff,
2209 /* mode_colorkey,msk*/ 0, 0,
2210 {
2211 {
2212 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
2213 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
2214 LCD_WINCTRL1_PO_16BPP,
2215 /* mode_winenable*/ LCD_WINENABLE_WEN0,
2216 },
2217 {
2218 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
2219 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
2220 LCD_WINCTRL1_PO_16BPP,
2221 /* mode_winenable*/ 0,
2222 },
2223 {
2224 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
2225 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_32BPP |
2226 LCD_WINCTRL1_PO_00|LCD_WINCTRL1_PIPE,
2227 /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/,
2228 },
2229 {
2230 /* xres, yres, xpos, ypos */ 0, 0, 0, 0,
2231 /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
2232 LCD_WINCTRL1_PO_16BPP |
2233 LCD_WINCTRL1_PIPE,
2234 /* mode_winenable*/ 0,
2235 },
2236 },
2237 },
2238 /* Need VGA 640 @ 24bpp, @ 32bpp */
2239 /* Need VGA 800 @ 24bpp, @ 32bpp */
2240 /* Need VGA 1024 @ 24bpp, @ 32bpp */
2241};
2242
2243/*
2244 * Controller configurations for various panels.
2245 */
2246
2247struct panel_settings
2248{
2249 const char name[25]; /* Full name <vendor>_<model> */
2250
2251 struct fb_monspecs monspecs; /* FB monitor specs */
2252
2253 /* panel timings */
2254 uint32 mode_screen;
2255 uint32 mode_horztiming;
2256 uint32 mode_verttiming;
2257 uint32 mode_clkcontrol;
2258 uint32 mode_pwmdiv;
2259 uint32 mode_pwmhi;
2260 uint32 mode_outmask;
2261 uint32 mode_fifoctrl;
2262 uint32 mode_toyclksrc;
2263 uint32 mode_backlight;
2264 uint32 mode_auxpll;
2265 int (*device_init)(void);
2266 int (*device_shutdown)(void);
2267#define Xres min_xres
2268#define Yres min_yres
2269 u32 min_xres; /* Minimum horizontal resolution */
2270 u32 max_xres; /* Maximum horizontal resolution */
2271 u32 min_yres; /* Minimum vertical resolution */
2272 u32 max_yres; /* Maximum vertical resolution */
2273};
2274
2275/********************************************************************/
2276/* fixme: Maybe a modedb for the CRT ? otherwise panels should be as-is */
2277
2278/* List of panels known to work with the AU1200 LCD controller.
2279 * To add a new panel, enter the same specifications as the
2280 * Generic_TFT one, and MAKE SURE that it doesn't conflicts
2281 * with the controller restrictions. Restrictions are:
2282 *
2283 * STN color panels: max_bpp <= 12
2284 * STN mono panels: max_bpp <= 4
2285 * TFT panels: max_bpp <= 16
2286 * max_xres <= 800
2287 * max_yres <= 600
2288 */
2289static struct panel_settings known_lcd_panels[] =
2290{
2291 [0] = { /* QVGA 320x240 H:33.3kHz V:110Hz */
2292 .name = "QVGA_320x240",
2293 .monspecs = {
2294 .modedb = NULL,
2295 .modedb_len = 0,
2296 .hfmin = 30000,
2297 .hfmax = 70000,
2298 .vfmin = 60,
2299 .vfmax = 60,
2300 .dclkmin = 6000000,
2301 .dclkmax = 28000000,
2302 .input = FB_DISP_RGB,
2303 },
2304 .mode_screen = LCD_SCREEN_SX_N(320) |
2305 LCD_SCREEN_SY_N(240),
2306 .mode_horztiming = 0x00c4623b,
2307 .mode_verttiming = 0x00502814,
2308 .mode_clkcontrol = 0x00020002, /* /4=24Mhz */
2309 .mode_pwmdiv = 0x00000000,
2310 .mode_pwmhi = 0x00000000,
2311 .mode_outmask = 0x00FFFFFF,
2312 .mode_fifoctrl = 0x2f2f2f2f,
2313 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
2314 .mode_backlight = 0x00000000,
2315 .mode_auxpll = 8, /* 96MHz AUXPLL */
2316 .device_init = NULL,
2317 .device_shutdown = NULL,
2318 320, 320,
2319 240, 240,
2320 },
2321
2322 [1] = { /* VGA 640x480 H:30.3kHz V:58Hz */
2323 .name = "VGA_640x480",
2324 .monspecs = {
2325 .modedb = NULL,
2326 .modedb_len = 0,
2327 .hfmin = 30000,
2328 .hfmax = 70000,
2329 .vfmin = 60,
2330 .vfmax = 60,
2331 .dclkmin = 6000000,
2332 .dclkmax = 28000000,
2333 .input = FB_DISP_RGB,
2334 },
2335 .mode_screen = 0x13f9df80,
2336 .mode_horztiming = 0x003c5859,
2337 .mode_verttiming = 0x00741201,
2338 .mode_clkcontrol = 0x00020001, /* /4=24Mhz */
2339 .mode_pwmdiv = 0x00000000,
2340 .mode_pwmhi = 0x00000000,
2341 .mode_outmask = 0x00FFFFFF,
2342 .mode_fifoctrl = 0x2f2f2f2f,
2343 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
2344 .mode_backlight = 0x00000000,
2345 .mode_auxpll = 8, /* 96MHz AUXPLL */
2346 .device_init = NULL,
2347 .device_shutdown = NULL,
2348 640, 480,
2349 640, 480,
2350 },
2351
2352 [2] = { /* SVGA 800x600 H:46.1kHz V:69Hz */
2353 .name = "SVGA_800x600",
2354 .monspecs = {
2355 .modedb = NULL,
2356 .modedb_len = 0,
2357 .hfmin = 30000,
2358 .hfmax = 70000,
2359 .vfmin = 60,
2360 .vfmax = 60,
2361 .dclkmin = 6000000,
2362 .dclkmax = 28000000,
2363 .input = FB_DISP_RGB,
2364 },
2365 .mode_screen = 0x18fa5780,
2366 .mode_horztiming = 0x00dc7e77,
2367 .mode_verttiming = 0x00584805,
2368 .mode_clkcontrol = 0x00020000, /* /2=48Mhz */
2369 .mode_pwmdiv = 0x00000000,
2370 .mode_pwmhi = 0x00000000,
2371 .mode_outmask = 0x00FFFFFF,
2372 .mode_fifoctrl = 0x2f2f2f2f,
2373 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
2374 .mode_backlight = 0x00000000,
2375 .mode_auxpll = 8, /* 96MHz AUXPLL */
2376 .device_init = NULL,
2377 .device_shutdown = NULL,
2378 800, 800,
2379 600, 600,
2380 },
2381
2382 [3] = { /* XVGA 1024x768 H:56.2kHz V:70Hz */
2383 .name = "XVGA_1024x768",
2384 .monspecs = {
2385 .modedb = NULL,
2386 .modedb_len = 0,
2387 .hfmin = 30000,
2388 .hfmax = 70000,
2389 .vfmin = 60,
2390 .vfmax = 60,
2391 .dclkmin = 6000000,
2392 .dclkmax = 28000000,
2393 .input = FB_DISP_RGB,
2394 },
2395 .mode_screen = 0x1ffaff80,
2396 .mode_horztiming = 0x007d0e57,
2397 .mode_verttiming = 0x00740a01,
2398 .mode_clkcontrol = 0x000A0000, /* /1 */
2399 .mode_pwmdiv = 0x00000000,
2400 .mode_pwmhi = 0x00000000,
2401 .mode_outmask = 0x00FFFFFF,
2402 .mode_fifoctrl = 0x2f2f2f2f,
2403 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
2404 .mode_backlight = 0x00000000,
2405 .mode_auxpll = 6, /* 72MHz AUXPLL */
2406 .device_init = NULL,
2407 .device_shutdown = NULL,
2408 1024, 1024,
2409 768, 768,
2410 },
2411
2412 [4] = { /* XVGA XVGA 1280x1024 H:68.5kHz V:65Hz */
2413 .name = "XVGA_1280x1024",
2414 .monspecs = {
2415 .modedb = NULL,
2416 .modedb_len = 0,
2417 .hfmin = 30000,
2418 .hfmax = 70000,
2419 .vfmin = 60,
2420 .vfmax = 60,
2421 .dclkmin = 6000000,
2422 .dclkmax = 28000000,
2423 .input = FB_DISP_RGB,
2424 },
2425 .mode_screen = 0x27fbff80,
2426 .mode_horztiming = 0x00cdb2c7,
2427 .mode_verttiming = 0x00600002,
2428 .mode_clkcontrol = 0x000A0000, /* /1 */
2429 .mode_pwmdiv = 0x00000000,
2430 .mode_pwmhi = 0x00000000,
2431 .mode_outmask = 0x00FFFFFF,
2432 .mode_fifoctrl = 0x2f2f2f2f,
2433 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
2434 .mode_backlight = 0x00000000,
2435 .mode_auxpll = 10, /* 120MHz AUXPLL */
2436 .device_init = NULL,
2437 .device_shutdown = NULL,
2438 1280, 1280,
2439 1024, 1024,
2440 },
2441
2442 [5] = { /* Samsung 1024x768 TFT */
2443 .name = "Samsung_1024x768_TFT",
2444 .monspecs = {
2445 .modedb = NULL,
2446 .modedb_len = 0,
2447 .hfmin = 30000,
2448 .hfmax = 70000,
2449 .vfmin = 60,
2450 .vfmax = 60,
2451 .dclkmin = 6000000,
2452 .dclkmax = 28000000,
2453 .input = FB_DISP_RGB,
2454 },
2455 .mode_screen = 0x1ffaff80,
2456 .mode_horztiming = 0x018cc677,
2457 .mode_verttiming = 0x00241217,
2458 .mode_clkcontrol = 0x00000000, /* SCB 0x1 /4=24Mhz */
2459 .mode_pwmdiv = 0x8000063f, /* SCB 0x0 */
2460 .mode_pwmhi = 0x03400000, /* SCB 0x0 */
2461 .mode_outmask = 0x00FFFFFF,
2462 .mode_fifoctrl = 0x2f2f2f2f,
2463 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
2464 .mode_backlight = 0x00000000,
2465 .mode_auxpll = 8, /* 96MHz AUXPLL */
2466 .device_init = board_au1200fb_panel_init,
2467 .device_shutdown = board_au1200fb_panel_shutdown,
2468 1024, 1024,
2469 768, 768,
2470 },
2471
2472 [6] = { /* Toshiba 640x480 TFT */
2473 .name = "Toshiba_640x480_TFT",
2474 .monspecs = {
2475 .modedb = NULL,
2476 .modedb_len = 0,
2477 .hfmin = 30000,
2478 .hfmax = 70000,
2479 .vfmin = 60,
2480 .vfmax = 60,
2481 .dclkmin = 6000000,
2482 .dclkmax = 28000000,
2483 .input = FB_DISP_RGB,
2484 },
2485 .mode_screen = LCD_SCREEN_SX_N(640) |
2486 LCD_SCREEN_SY_N(480),
2487 .mode_horztiming = LCD_HORZTIMING_HPW_N(96) |
2488 LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(51),
2489 .mode_verttiming = LCD_VERTTIMING_VPW_N(2) |
2490 LCD_VERTTIMING_VND1_N(11) | LCD_VERTTIMING_VND2_N(32),
2491 .mode_clkcontrol = 0x00000000, /* /4=24Mhz */
2492 .mode_pwmdiv = 0x8000063f,
2493 .mode_pwmhi = 0x03400000,
2494 .mode_outmask = 0x00fcfcfc,
2495 .mode_fifoctrl = 0x2f2f2f2f,
2496 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
2497 .mode_backlight = 0x00000000,
2498 .mode_auxpll = 8, /* 96MHz AUXPLL */
2499 .device_init = board_au1200fb_panel_init,
2500 .device_shutdown = board_au1200fb_panel_shutdown,
2501 640, 480,
2502 640, 480,
2503 },
2504
2505 [7] = { /* Sharp 320x240 TFT */
2506 .name = "Sharp_320x240_TFT",
2507 .monspecs = {
2508 .modedb = NULL,
2509 .modedb_len = 0,
2510 .hfmin = 12500,
2511 .hfmax = 20000,
2512 .vfmin = 38,
2513 .vfmax = 81,
2514 .dclkmin = 4500000,
2515 .dclkmax = 6800000,
2516 .input = FB_DISP_RGB,
2517 },
2518 .mode_screen = LCD_SCREEN_SX_N(320) |
2519 LCD_SCREEN_SY_N(240),
2520 .mode_horztiming = LCD_HORZTIMING_HPW_N(60) |
2521 LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(2),
2522 .mode_verttiming = LCD_VERTTIMING_VPW_N(2) |
2523 LCD_VERTTIMING_VND1_N(2) | LCD_VERTTIMING_VND2_N(5),
2524 .mode_clkcontrol = LCD_CLKCONTROL_PCD_N(7), /*16=6Mhz*/
2525 .mode_pwmdiv = 0x8000063f,
2526 .mode_pwmhi = 0x03400000,
2527 .mode_outmask = 0x00fcfcfc,
2528 .mode_fifoctrl = 0x2f2f2f2f,
2529 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
2530 .mode_backlight = 0x00000000,
2531 .mode_auxpll = 8, /* 96MHz AUXPLL */
2532 .device_init = board_au1200fb_panel_init,
2533 .device_shutdown = board_au1200fb_panel_shutdown,
2534 320, 320,
2535 240, 240,
2536 },
2537
2538 [8] = { /* Toppoly TD070WGCB2 7" 856x480 TFT */
2539 .name = "Toppoly_TD070WGCB2",
2540 .monspecs = {
2541 .modedb = NULL,
2542 .modedb_len = 0,
2543 .hfmin = 30000,
2544 .hfmax = 70000,
2545 .vfmin = 60,
2546 .vfmax = 60,
2547 .dclkmin = 6000000,
2548 .dclkmax = 28000000,
2549 .input = FB_DISP_RGB,
2550 },
2551 .mode_screen = LCD_SCREEN_SX_N(856) |
2552 LCD_SCREEN_SY_N(480),
2553 .mode_horztiming = LCD_HORZTIMING_HND2_N(43) |
2554 LCD_HORZTIMING_HND1_N(43) | LCD_HORZTIMING_HPW_N(114),
2555 .mode_verttiming = LCD_VERTTIMING_VND2_N(20) |
2556 LCD_VERTTIMING_VND1_N(21) | LCD_VERTTIMING_VPW_N(4),
2557 .mode_clkcontrol = 0x00020001, /* /4=24Mhz */
2558 .mode_pwmdiv = 0x8000063f,
2559 .mode_pwmhi = 0x03400000,
2560 .mode_outmask = 0x00fcfcfc,
2561 .mode_fifoctrl = 0x2f2f2f2f,
2562 .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
2563 .mode_backlight = 0x00000000,
2564 .mode_auxpll = 8, /* 96MHz AUXPLL */
2565 .device_init = board_au1200fb_panel_init,
2566 .device_shutdown = board_au1200fb_panel_shutdown,
2567 856, 856,
2568 480, 480,
2569 },
2570};
2571
2572#define NUM_PANELS (ARRAY_SIZE(known_lcd_panels))
2573
2574/********************************************************************/
2575
2576#ifdef CONFIG_PM
2577static int set_brightness(unsigned int brightness)
2578{
2579 unsigned int hi1, divider;
2580
2581 /* limit brightness pwm duty to >= 30/1600 */
2582 if (brightness < 30) {
2583 brightness = 30;
2584 }
2585 divider = (lcd->pwmdiv & 0x3FFFF) + 1;
2586 hi1 = (lcd->pwmhi >> 16) + 1;
2587 hi1 = (((brightness & 0xFF) + 1) * divider >> 8);
2588 lcd->pwmhi &= 0xFFFF;
2589 lcd->pwmhi |= (hi1 << 16);
2590
2591 return brightness;
2592}
2593#endif /* CONFIG_PM */
2594
2595static int winbpp (unsigned int winctrl1)
2596{
2597 int bits = 0;
2598
2599 /* how many bits are needed for each pixel format */
2600 switch (winctrl1 & LCD_WINCTRL1_FRM) {
2601 case LCD_WINCTRL1_FRM_1BPP:
2602 bits = 1;
2603 break;
2604 case LCD_WINCTRL1_FRM_2BPP:
2605 bits = 2;
2606 break;
2607 case LCD_WINCTRL1_FRM_4BPP:
2608 bits = 4;
2609 break;
2610 case LCD_WINCTRL1_FRM_8BPP:
2611 bits = 8;
2612 break;
2613 case LCD_WINCTRL1_FRM_12BPP:
2614 case LCD_WINCTRL1_FRM_16BPP655:
2615 case LCD_WINCTRL1_FRM_16BPP565:
2616 case LCD_WINCTRL1_FRM_16BPP556:
2617 case LCD_WINCTRL1_FRM_16BPPI1555:
2618 case LCD_WINCTRL1_FRM_16BPPI5551:
2619 case LCD_WINCTRL1_FRM_16BPPA1555:
2620 case LCD_WINCTRL1_FRM_16BPPA5551:
2621 bits = 16;
2622 break;
2623 case LCD_WINCTRL1_FRM_24BPP:
2624 case LCD_WINCTRL1_FRM_32BPP:
2625 bits = 32;
2626 break;
2627 }
2628
2629 return bits;
2630}
2631
2632static int fbinfo2index (struct fb_info *fb_info)
2633{
2634 int i;
2635
2636 for (i = 0; i < CONFIG_FB_AU1200_DEVS; ++i) {
2637 if (fb_info == (struct fb_info *)(&_au1200fb_devices[i].fb_info))
2638 return i;
2639 }
2640 printk("au1200fb: ERROR: fbinfo2index failed!\n");
2641 return -1;
2642}
2643
2644static int au1200_setlocation (struct au1200fb_device *fbdev, int plane,
2645 int xpos, int ypos)
2646{
2647 uint32 winctrl0, winctrl1, winenable, fb_offset = 0;
2648 int xsz, ysz;
2649
2650 /* FIX!!! NOT CHECKING FOR COMPLETE OFFSCREEN YET */
2651
2652 winctrl0 = lcd->window[plane].winctrl0;
2653 winctrl1 = lcd->window[plane].winctrl1;
2654 winctrl0 &= (LCD_WINCTRL0_A | LCD_WINCTRL0_AEN);
2655 winctrl1 &= ~(LCD_WINCTRL1_SZX | LCD_WINCTRL1_SZY);
2656
2657 /* Check for off-screen adjustments */
2658 xsz = win->w[plane].xres;
2659 ysz = win->w[plane].yres;
2660 if ((xpos + win->w[plane].xres) > panel->Xres) {
2661 /* Off-screen to the right */
2662 xsz = panel->Xres - xpos; /* off by 1 ??? */
2663 /*printk("off screen right\n");*/
2664 }
2665
2666 if ((ypos + win->w[plane].yres) > panel->Yres) {
2667 /* Off-screen to the bottom */
2668 ysz = panel->Yres - ypos; /* off by 1 ??? */
2669 /*printk("off screen bottom\n");*/
2670 }
2671
2672 if (xpos < 0) {
2673 /* Off-screen to the left */
2674 xsz = win->w[plane].xres + xpos;
2675 fb_offset += (((0 - xpos) * winbpp(lcd->window[plane].winctrl1))/8);
2676 xpos = 0;
2677 /*printk("off screen left\n");*/
2678 }
2679
2680 if (ypos < 0) {
2681 /* Off-screen to the top */
2682 ysz = win->w[plane].yres + ypos;
2683 /* fixme: fb_offset += ((0-ypos)*fb_pars[plane].line_length); */
2684 ypos = 0;
2685 /*printk("off screen top\n");*/
2686 }
2687
2688 /* record settings */
2689 win->w[plane].xpos = xpos;
2690 win->w[plane].ypos = ypos;
2691
2692 xsz -= 1;
2693 ysz -= 1;
2694 winctrl0 |= (xpos << 21);
2695 winctrl0 |= (ypos << 10);
2696 winctrl1 |= (xsz << 11);
2697 winctrl1 |= (ysz << 0);
2698
2699 /* Disable the window while making changes, then restore WINEN */
2700 winenable = lcd->winenable & (1 << plane);
2701 au_sync();
2702 lcd->winenable &= ~(1 << plane);
2703 lcd->window[plane].winctrl0 = winctrl0;
2704 lcd->window[plane].winctrl1 = winctrl1;
2705 lcd->window[plane].winbuf0 =
2706 lcd->window[plane].winbuf1 = fbdev->fb_phys;
2707 lcd->window[plane].winbufctrl = 0; /* select winbuf0 */
2708 lcd->winenable |= winenable;
2709 au_sync();
2710
2711 return 0;
2712}
2713
2714static void au1200_setpanel (struct panel_settings *newpanel)
2715{
2716 /*
2717 * Perform global setup/init of LCD controller
2718 */
2719 uint32 winenable;
2720
2721 /* Make sure all windows disabled */
2722 winenable = lcd->winenable;
2723 lcd->winenable = 0;
2724 au_sync();
2725 /*
2726 * Ensure everything is disabled before reconfiguring
2727 */
2728 if (lcd->screen & LCD_SCREEN_SEN) {
2729 /* Wait for vertical sync period */
2730 lcd->intstatus = LCD_INT_SS;
2731 while ((lcd->intstatus & LCD_INT_SS) == 0) {
2732 au_sync();
2733 }
2734
2735 lcd->screen &= ~LCD_SCREEN_SEN; /*disable the controller*/
2736
2737 do {
2738 lcd->intstatus = lcd->intstatus; /*clear interrupts*/
2739 au_sync();
2740 /*wait for controller to shut down*/
2741 } while ((lcd->intstatus & LCD_INT_SD) == 0);
2742
2743 /* Call shutdown of current panel (if up) */
2744 /* this must occur last, because if an external clock is driving
2745 the controller, the clock cannot be turned off before first
2746 shutting down the controller.
2747 */
2748 if (panel->device_shutdown != NULL)
2749 panel->device_shutdown();
2750 }
2751
2752 /* Newpanel == NULL indicates a shutdown operation only */
2753 if (newpanel == NULL)
2754 return;
2755
2756 panel = newpanel;
2757
2758 printk("Panel(%s), %dx%d\n", panel->name, panel->Xres, panel->Yres);
2759
2760 /*
2761 * Setup clocking if internal LCD clock source (assumes sys_auxpll valid)
2762 */
2763 if (!(panel->mode_clkcontrol & LCD_CLKCONTROL_EXT))
2764 {
2765 uint32 sys_clksrc;
2766 au_writel(panel->mode_auxpll, SYS_AUXPLL);
2767 sys_clksrc = au_readl(SYS_CLKSRC) & ~0x0000001f;
2768 sys_clksrc |= panel->mode_toyclksrc;
2769 au_writel(sys_clksrc, SYS_CLKSRC);
2770 }
2771
2772 /*
2773 * Configure panel timings
2774 */
2775 lcd->screen = panel->mode_screen;
2776 lcd->horztiming = panel->mode_horztiming;
2777 lcd->verttiming = panel->mode_verttiming;
2778 lcd->clkcontrol = panel->mode_clkcontrol;
2779 lcd->pwmdiv = panel->mode_pwmdiv;
2780 lcd->pwmhi = panel->mode_pwmhi;
2781 lcd->outmask = panel->mode_outmask;
2782 lcd->fifoctrl = panel->mode_fifoctrl;
2783 au_sync();
2784
2785 /* fixme: Check window settings to make sure still valid
2786 * for new geometry */
2787#if 0
2788 au1200_setlocation(fbdev, 0, win->w[0].xpos, win->w[0].ypos);
2789 au1200_setlocation(fbdev, 1, win->w[1].xpos, win->w[1].ypos);
2790 au1200_setlocation(fbdev, 2, win->w[2].xpos, win->w[2].ypos);
2791 au1200_setlocation(fbdev, 3, win->w[3].xpos, win->w[3].ypos);
2792#endif
2793 lcd->winenable = winenable;
2794
2795 /*
2796 * Re-enable screen now that it is configured
2797 */
2798 lcd->screen |= LCD_SCREEN_SEN;
2799 au_sync();
2800
2801 /* Call init of panel */
2802 if (panel->device_init != NULL) panel->device_init();
2803
2804 /* FIX!!!! not appropriate on panel change!!! Global setup/init */
2805 lcd->intenable = 0;
2806 lcd->intstatus = ~0;
2807 lcd->backcolor = win->mode_backcolor;
2808
2809 /* Setup Color Key - FIX!!! */
2810 lcd->colorkey = win->mode_colorkey;
2811 lcd->colorkeymsk = win->mode_colorkeymsk;
2812
2813 /* Setup HWCursor - FIX!!! Need to support this eventually */
2814 lcd->hwc.cursorctrl = 0;
2815 lcd->hwc.cursorpos = 0;
2816 lcd->hwc.cursorcolor0 = 0;
2817 lcd->hwc.cursorcolor1 = 0;
2818 lcd->hwc.cursorcolor2 = 0;
2819 lcd->hwc.cursorcolor3 = 0;
2820
2821
2822#if 0
2823#define D(X) printk("%25s: %08X\n", #X, X)
2824 D(lcd->screen);
2825 D(lcd->horztiming);
2826 D(lcd->verttiming);
2827 D(lcd->clkcontrol);
2828 D(lcd->pwmdiv);
2829 D(lcd->pwmhi);
2830 D(lcd->outmask);
2831 D(lcd->fifoctrl);
2832 D(lcd->window[0].winctrl0);
2833 D(lcd->window[0].winctrl1);
2834 D(lcd->window[0].winctrl2);
2835 D(lcd->window[0].winbuf0);
2836 D(lcd->window[0].winbuf1);
2837 D(lcd->window[0].winbufctrl);
2838 D(lcd->window[1].winctrl0);
2839 D(lcd->window[1].winctrl1);
2840 D(lcd->window[1].winctrl2);
2841 D(lcd->window[1].winbuf0);
2842 D(lcd->window[1].winbuf1);
2843 D(lcd->window[1].winbufctrl);
2844 D(lcd->window[2].winctrl0);
2845 D(lcd->window[2].winctrl1);
2846 D(lcd->window[2].winctrl2);
2847 D(lcd->window[2].winbuf0);
2848 D(lcd->window[2].winbuf1);
2849 D(lcd->window[2].winbufctrl);
2850 D(lcd->window[3].winctrl0);
2851 D(lcd->window[3].winctrl1);
2852 D(lcd->window[3].winctrl2);
2853 D(lcd->window[3].winbuf0);
2854 D(lcd->window[3].winbuf1);
2855 D(lcd->window[3].winbufctrl);
2856 D(lcd->winenable);
2857 D(lcd->intenable);
2858 D(lcd->intstatus);
2859 D(lcd->backcolor);
2860 D(lcd->winenable);
2861 D(lcd->colorkey);
2862 D(lcd->colorkeymsk);
2863 D(lcd->hwc.cursorctrl);
2864 D(lcd->hwc.cursorpos);
2865 D(lcd->hwc.cursorcolor0);
2866 D(lcd->hwc.cursorcolor1);
2867 D(lcd->hwc.cursorcolor2);
2868 D(lcd->hwc.cursorcolor3);
2869#endif
2870}
2871
2872static void au1200_setmode(struct au1200fb_device *fbdev)
2873{
2874 int plane = fbdev->plane;
2875 /* Window/plane setup */
2876 lcd->window[plane].winctrl1 = ( 0
2877 | LCD_WINCTRL1_PRI_N(plane)
2878 | win->w[plane].mode_winctrl1 /* FRM,CCO,PO,PIPE */
2879 ) ;
2880
2881 au1200_setlocation(fbdev, plane, win->w[plane].xpos, win->w[plane].ypos);
2882
2883 lcd->window[plane].winctrl2 = ( 0
2884 | LCD_WINCTRL2_CKMODE_00
2885 | LCD_WINCTRL2_DBM
2886 | LCD_WINCTRL2_BX_N( fbdev->fb_info.fix.line_length)
2887 | LCD_WINCTRL2_SCX_1
2888 | LCD_WINCTRL2_SCY_1
2889 ) ;
2890 lcd->winenable |= win->w[plane].mode_winenable;
2891 au_sync();
2892}
2893
2894
2895/* Inline helpers */
2896
2897/*#define panel_is_dual(panel) ((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/
2898/*#define panel_is_active(panel)((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/
2899
2900#define panel_is_color(panel) ((panel->mode_screen & LCD_SCREEN_PT) <= LCD_SCREEN_PT_CDSTN)
2901
2902/* Bitfields format supported by the controller. */
2903static struct fb_bitfield rgb_bitfields[][4] = {
2904 /* Red, Green, Blue, Transp */
2905 [LCD_WINCTRL1_FRM_16BPP655 >> 25] =
2906 { { 10, 6, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
2907
2908 [LCD_WINCTRL1_FRM_16BPP565 >> 25] =
2909 { { 11, 5, 0 }, { 5, 6, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
2910
2911 [LCD_WINCTRL1_FRM_16BPP556 >> 25] =
2912 { { 11, 5, 0 }, { 6, 5, 0 }, { 0, 6, 0 }, { 0, 0, 0 } },
2913
2914 [LCD_WINCTRL1_FRM_16BPPI1555 >> 25] =
2915 { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } },
2916
2917 [LCD_WINCTRL1_FRM_16BPPI5551 >> 25] =
2918 { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 0, 0 } },
2919
2920 [LCD_WINCTRL1_FRM_16BPPA1555 >> 25] =
2921 { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 15, 1, 0 } },
2922
2923 [LCD_WINCTRL1_FRM_16BPPA5551 >> 25] =
2924 { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 1, 0 } },
2925
2926 [LCD_WINCTRL1_FRM_24BPP >> 25] =
2927 { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 0, 0, 0 } },
2928
2929 [LCD_WINCTRL1_FRM_32BPP >> 25] =
2930 { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 24, 0, 0 } },
2931};
2932
2933/*-------------------------------------------------------------------------*/
2934
2935/* Helpers */
2936
2937static void au1200fb_update_fbinfo(struct fb_info *fbi)
2938{
2939 /* FIX!!!! This also needs to take the window pixel format into account!!! */
2940
2941 /* Update var-dependent FB info */
2942 if (panel_is_color(panel)) {
2943 if (fbi->var.bits_per_pixel <= 8) {
2944 /* palettized */
2945 fbi->fix.visual = FB_VISUAL_PSEUDOCOLOR;
2946 fbi->fix.line_length = fbi->var.xres_virtual /
2947 (8/fbi->var.bits_per_pixel);
2948 } else {
2949 /* non-palettized */
2950 fbi->fix.visual = FB_VISUAL_TRUECOLOR;
2951 fbi->fix.line_length = fbi->var.xres_virtual * (fbi->var.bits_per_pixel / 8);
2952 }
2953 } else {
2954 /* mono FIX!!! mono 8 and 4 bits */
2955 fbi->fix.visual = FB_VISUAL_MONO10;
2956 fbi->fix.line_length = fbi->var.xres_virtual / 8;
2957 }
2958
2959 fbi->screen_size = fbi->fix.line_length * fbi->var.yres_virtual;
2960 print_dbg("line length: %d\n", fbi->fix.line_length);
2961 print_dbg("bits_per_pixel: %d\n", fbi->var.bits_per_pixel);
2962}
2963
2964/*-------------------------------------------------------------------------*/
2965
2966/* AU1200 framebuffer driver */
2967
2968/* fb_check_var
2969 * Validate var settings with hardware restrictions and modify it if necessary
2970 */
2971static int au1200fb_fb_check_var(struct fb_var_screeninfo *var,
2972 struct fb_info *fbi)
2973{
2974 struct au1200fb_device *fbdev = (struct au1200fb_device *)fbi;
2975 u32 pixclock;
2976 int screen_size, plane;
2977
2978 plane = fbdev->plane;
2979
2980 /* Make sure that the mode respect all LCD controller and
2981 * panel restrictions. */
2982 var->xres = win->w[plane].xres;
2983 var->yres = win->w[plane].yres;
2984
2985 /* No need for virtual resolution support */
2986 var->xres_virtual = var->xres;
2987 var->yres_virtual = var->yres;
2988
2989 var->bits_per_pixel = winbpp(win->w[plane].mode_winctrl1);
2990
2991 screen_size = var->xres_virtual * var->yres_virtual;
2992 if (var->bits_per_pixel > 8) screen_size *= (var->bits_per_pixel / 8);
2993 else screen_size /= (8/var->bits_per_pixel);
2994
2995 if (fbdev->fb_len < screen_size)
2996 return -EINVAL; /* Virtual screen is to big, abort */
2997
2998 /* FIX!!!! what are the implicaitons of ignoring this for windows ??? */
2999 /* The max LCD clock is fixed to 48MHz (value of AUX_CLK). The pixel
3000 * clock can only be obtain by dividing this value by an even integer.
3001 * Fallback to a slower pixel clock if necessary. */
3002 pixclock = max((u32)(PICOS2KHZ(var->pixclock) * 1000), fbi->monspecs.dclkmin);
3003 pixclock = min(pixclock, min(fbi->monspecs.dclkmax, (u32)AU1200_LCD_MAX_CLK/2));
3004
3005 if (AU1200_LCD_MAX_CLK % pixclock) {
3006 int diff = AU1200_LCD_MAX_CLK % pixclock;
3007 pixclock -= diff;
3008 }
3009
3010 var->pixclock = KHZ2PICOS(pixclock/1000);
3011#if 0
3012 if (!panel_is_active(panel)) {
3013 int pcd = AU1200_LCD_MAX_CLK / (pixclock * 2) - 1;
3014
3015 if (!panel_is_color(panel)
3016 && (panel->control_base & LCD_CONTROL_MPI) && (pcd < 3)) {
3017 /* STN 8bit mono panel support is up to 6MHz pixclock */
3018 var->pixclock = KHZ2PICOS(6000);
3019 } else if (!pcd) {
3020 /* Other STN panel support is up to 12MHz */
3021 var->pixclock = KHZ2PICOS(12000);
3022 }
3023 }
3024#endif
3025 /* Set bitfield accordingly */
3026 switch (var->bits_per_pixel) {
3027 case 16:
3028 {
3029 /* 16bpp True color.
3030 * These must be set to MATCH WINCTRL[FORM] */
3031 int idx;
3032 idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25;
3033 var->red = rgb_bitfields[idx][0];
3034 var->green = rgb_bitfields[idx][1];
3035 var->blue = rgb_bitfields[idx][2];
3036 var->transp = rgb_bitfields[idx][3];
3037 break;
3038 }
3039
3040 case 32:
3041 {
3042 /* 32bpp True color.
3043 * These must be set to MATCH WINCTRL[FORM] */
3044 int idx;
3045 idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25;
3046 var->red = rgb_bitfields[idx][0];
3047 var->green = rgb_bitfields[idx][1];
3048 var->blue = rgb_bitfields[idx][2];
3049 var->transp = rgb_bitfields[idx][3];
3050 break;
3051 }
3052 default:
3053 print_dbg("Unsupported depth %dbpp", var->bits_per_pixel);
3054 return -EINVAL;
3055 }
3056
3057 return 0;
3058}
3059
3060/* fb_set_par
3061 * Set hardware with var settings. This will enable the controller with a
3062 * specific mode, normally validated with the fb_check_var method
3063 */
3064static int au1200fb_fb_set_par(struct fb_info *fbi)
3065{
3066 struct au1200fb_device *fbdev = (struct au1200fb_device *)fbi;
3067
3068 au1200fb_update_fbinfo(fbi);
3069 au1200_setmode(fbdev);
3070
3071 return 0;
3072}
3073
3074/* fb_setcolreg
3075 * Set color in LCD palette.
3076 */
3077static int au1200fb_fb_setcolreg(unsigned regno, unsigned red, unsigned green,
3078 unsigned blue, unsigned transp, struct fb_info *fbi)
3079{
3080 volatile u32 *palette = lcd->palette;
3081 u32 value;
3082
3083 if (regno > (AU1200_LCD_NBR_PALETTE_ENTRIES - 1))
3084 return -EINVAL;
3085
3086 if (fbi->var.grayscale) {
3087 /* Convert color to grayscale */
3088 red = green = blue =
3089 (19595 * red + 38470 * green + 7471 * blue) >> 16;
3090 }
3091
3092 if (fbi->fix.visual == FB_VISUAL_TRUECOLOR) {
3093 /* Place color in the pseudopalette */
3094 if (regno > 16)
3095 return -EINVAL;
3096
3097 palette = (u32*) fbi->pseudo_palette;
3098
3099 red >>= (16 - fbi->var.red.length);
3100 green >>= (16 - fbi->var.green.length);
3101 blue >>= (16 - fbi->var.blue.length);
3102
3103 value = (red << fbi->var.red.offset) |
3104 (green << fbi->var.green.offset)|
3105 (blue << fbi->var.blue.offset);
3106 value &= 0xFFFF;
3107
3108 } else if (1 /*FIX!!! panel_is_active(fbdev->panel)*/) {
3109 /* COLOR TFT PALLETTIZED (use RGB 565) */
3110 value = (red & 0xF800)|((green >> 5) &
3111 0x07E0)|((blue >> 11) & 0x001F);
3112 value &= 0xFFFF;
3113
3114 } else if (0 /*panel_is_color(fbdev->panel)*/) {
3115 /* COLOR STN MODE */
3116 value = 0x1234;
3117 value &= 0xFFF;
3118 } else {
3119 /* MONOCHROME MODE */
3120 value = (green >> 12) & 0x000F;
3121 value &= 0xF;
3122 }
3123
3124 palette[regno] = value;
3125
3126 return 0;
3127}
3128
3129/* fb_blank
3130 * Blank the screen. Depending on the mode, the screen will be
3131 * activated with the backlight color, or desactivated
3132 */
3133static int au1200fb_fb_blank(int blank_mode, struct fb_info *fbi)
3134{
3135 /* Short-circuit screen blanking */
3136 if (noblanking)
3137 return 0;
3138
3139 switch (blank_mode) {
3140
3141 case FB_BLANK_UNBLANK:
3142 case FB_BLANK_NORMAL:
3143 /* printk("turn on panel\n"); */
3144 au1200_setpanel(panel);
3145 break;
3146 case FB_BLANK_VSYNC_SUSPEND:
3147 case FB_BLANK_HSYNC_SUSPEND:
3148 case FB_BLANK_POWERDOWN:
3149 /* printk("turn off panel\n"); */
3150 au1200_setpanel(NULL);
3151 break;
3152 default:
3153 break;
3154
3155 }
3156
3157 /* FB_BLANK_NORMAL is a soft blank */
3158 return (blank_mode == FB_BLANK_NORMAL) ? -EINVAL : 0;
3159}
3160
3161/* fb_mmap
3162 * Map video memory in user space. We don't use the generic fb_mmap
3163 * method mainly to allow the use of the TLB streaming flag (CCA=6)
3164 */
3165static int au1200fb_fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
3166
3167{
3168 unsigned int len;
3169 unsigned long start=0, off;
3170 struct au1200fb_device *fbdev = (struct au1200fb_device *) info;
3171
3172#ifdef CONFIG_PM
3173 au1xxx_pm_access(LCD_pm_dev);
3174#endif
3175
3176 if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) {
3177 return -EINVAL;
3178 }
3179
3180 start = fbdev->fb_phys & PAGE_MASK;
3181 len = PAGE_ALIGN((start & ~PAGE_MASK) + fbdev->fb_len);
3182
3183 off = vma->vm_pgoff << PAGE_SHIFT;
3184
3185 if ((vma->vm_end - vma->vm_start + off) > len) {
3186 return -EINVAL;
3187 }
3188
3189 off += start;
3190 vma->vm_pgoff = off >> PAGE_SHIFT;
3191
3192 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
3193 pgprot_val(vma->vm_page_prot) |= _CACHE_MASK; /* CCA=7 */
3194
3195 vma->vm_flags |= VM_IO;
3196
3197 return io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
3198 vma->vm_end - vma->vm_start,
3199 vma->vm_page_prot);
3200
3201 return 0;
3202}
3203
3204static void set_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata)
3205{
3206
3207 unsigned int hi1, divider;
3208
3209 /* SCREEN_SIZE: user cannot reset size, must switch panel choice */
3210
3211 if (pdata->flags & SCREEN_BACKCOLOR)
3212 lcd->backcolor = pdata->backcolor;
3213
3214 if (pdata->flags & SCREEN_BRIGHTNESS) {
3215
3216 // limit brightness pwm duty to >= 30/1600
3217 if (pdata->brightness < 30) {
3218 pdata->brightness = 30;
3219 }
3220 divider = (lcd->pwmdiv & 0x3FFFF) + 1;
3221 hi1 = (lcd->pwmhi >> 16) + 1;
3222 hi1 = (((pdata->brightness & 0xFF)+1) * divider >> 8);
3223 lcd->pwmhi &= 0xFFFF;
3224 lcd->pwmhi |= (hi1 << 16);
3225 }
3226
3227 if (pdata->flags & SCREEN_COLORKEY)
3228 lcd->colorkey = pdata->colorkey;
3229
3230 if (pdata->flags & SCREEN_MASK)
3231 lcd->colorkeymsk = pdata->mask;
3232 au_sync();
3233}
3234
3235static void get_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata)
3236{
3237 unsigned int hi1, divider;
3238
3239 pdata->xsize = ((lcd->screen & LCD_SCREEN_SX) >> 19) + 1;
3240 pdata->ysize = ((lcd->screen & LCD_SCREEN_SY) >> 8) + 1;
3241
3242 pdata->backcolor = lcd->backcolor;
3243 pdata->colorkey = lcd->colorkey;
3244 pdata->mask = lcd->colorkeymsk;
3245
3246 // brightness
3247 hi1 = (lcd->pwmhi >> 16) + 1;
3248 divider = (lcd->pwmdiv & 0x3FFFF) + 1;
3249 pdata->brightness = ((hi1 << 8) / divider) - 1;
3250 au_sync();
3251}
3252
3253static void set_window(unsigned int plane,
3254 struct au1200_lcd_window_regs_t *pdata)
3255{
3256 unsigned int val, bpp;
3257
3258 /* Window control register 0 */
3259 if (pdata->flags & WIN_POSITION) {
3260 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_OX |
3261 LCD_WINCTRL0_OY);
3262 val |= ((pdata->xpos << 21) & LCD_WINCTRL0_OX);
3263 val |= ((pdata->ypos << 10) & LCD_WINCTRL0_OY);
3264 lcd->window[plane].winctrl0 = val;
3265 }
3266 if (pdata->flags & WIN_ALPHA_COLOR) {
3267 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_A);
3268 val |= ((pdata->alpha_color << 2) & LCD_WINCTRL0_A);
3269 lcd->window[plane].winctrl0 = val;
3270 }
3271 if (pdata->flags & WIN_ALPHA_MODE) {
3272 val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_AEN);
3273 val |= ((pdata->alpha_mode << 1) & LCD_WINCTRL0_AEN);
3274 lcd->window[plane].winctrl0 = val;
3275 }
3276
3277 /* Window control register 1 */
3278 if (pdata->flags & WIN_PRIORITY) {
3279 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PRI);
3280 val |= ((pdata->priority << 30) & LCD_WINCTRL1_PRI);
3281 lcd->window[plane].winctrl1 = val;
3282 }
3283 if (pdata->flags & WIN_CHANNEL) {
3284 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PIPE);
3285 val |= ((pdata->channel << 29) & LCD_WINCTRL1_PIPE);
3286 lcd->window[plane].winctrl1 = val;
3287 }
3288 if (pdata->flags & WIN_BUFFER_FORMAT) {
3289 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_FRM);
3290 val |= ((pdata->buffer_format << 25) & LCD_WINCTRL1_FRM);
3291 lcd->window[plane].winctrl1 = val;
3292 }
3293 if (pdata->flags & WIN_COLOR_ORDER) {
3294 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_CCO);
3295 val |= ((pdata->color_order << 24) & LCD_WINCTRL1_CCO);
3296 lcd->window[plane].winctrl1 = val;
3297 }
3298 if (pdata->flags & WIN_PIXEL_ORDER) {
3299 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PO);
3300 val |= ((pdata->pixel_order << 22) & LCD_WINCTRL1_PO);
3301 lcd->window[plane].winctrl1 = val;
3302 }
3303 if (pdata->flags & WIN_SIZE) {
3304 val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_SZX |
3305 LCD_WINCTRL1_SZY);
3306 val |= (((pdata->xsize << 11) - 1) & LCD_WINCTRL1_SZX);
3307 val |= (((pdata->ysize) - 1) & LCD_WINCTRL1_SZY);
3308 lcd->window[plane].winctrl1 = val;
3309 /* program buffer line width */
3310 bpp = winbpp(val) / 8;
3311 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_BX);
3312 val |= (((pdata->xsize * bpp) << 8) & LCD_WINCTRL2_BX);
3313 lcd->window[plane].winctrl2 = val;
3314 }
3315
3316 /* Window control register 2 */
3317 if (pdata->flags & WIN_COLORKEY_MODE) {
3318 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_CKMODE);
3319 val |= ((pdata->colorkey_mode << 24) & LCD_WINCTRL2_CKMODE);
3320 lcd->window[plane].winctrl2 = val;
3321 }
3322 if (pdata->flags & WIN_DOUBLE_BUFFER_MODE) {
3323 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_DBM);
3324 val |= ((pdata->double_buffer_mode << 23) & LCD_WINCTRL2_DBM);
3325 lcd->window[plane].winctrl2 = val;
3326 }
3327 if (pdata->flags & WIN_RAM_ARRAY_MODE) {
3328 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_RAM);
3329 val |= ((pdata->ram_array_mode << 21) & LCD_WINCTRL2_RAM);
3330 lcd->window[plane].winctrl2 = val;
3331 }
3332
3333 /* Buffer line width programmed with WIN_SIZE */
3334
3335 if (pdata->flags & WIN_BUFFER_SCALE) {
3336 val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_SCX |
3337 LCD_WINCTRL2_SCY);
3338 val |= ((pdata->xsize << 11) & LCD_WINCTRL2_SCX);
3339 val |= ((pdata->ysize) & LCD_WINCTRL2_SCY);
3340 lcd->window[plane].winctrl2 = val;
3341 }
3342
3343 if (pdata->flags & WIN_ENABLE) {
3344 val = lcd->winenable;
3345 val &= ~(1<<plane);
3346 val |= (pdata->enable & 1) << plane;
3347 lcd->winenable = val;
3348 }
3349 au_sync();
3350}
3351
3352static void get_window(unsigned int plane,
3353 struct au1200_lcd_window_regs_t *pdata)
3354{
3355 /* Window control register 0 */
3356 pdata->xpos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OX) >> 21;
3357 pdata->ypos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OY) >> 10;
3358 pdata->alpha_color = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_A) >> 2;
3359 pdata->alpha_mode = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_AEN) >> 1;
3360
3361 /* Window control register 1 */
3362 pdata->priority = (lcd->window[plane].winctrl1& LCD_WINCTRL1_PRI) >> 30;
3363 pdata->channel = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PIPE) >> 29;
3364 pdata->buffer_format = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_FRM) >> 25;
3365 pdata->color_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_CCO) >> 24;
3366 pdata->pixel_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PO) >> 22;
3367 pdata->xsize = ((lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZX) >> 11) + 1;
3368 pdata->ysize = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZY) + 1;
3369
3370 /* Window control register 2 */
3371 pdata->colorkey_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_CKMODE) >> 24;
3372 pdata->double_buffer_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_DBM) >> 23;
3373 pdata->ram_array_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_RAM) >> 21;
3374
3375 pdata->enable = (lcd->winenable >> plane) & 1;
3376 au_sync();
3377}
3378
3379static int au1200fb_ioctl(struct fb_info *info, unsigned int cmd,
3380 unsigned long arg)
3381{
3382 int plane;
3383 int val;
3384
3385#ifdef CONFIG_PM
3386 au1xxx_pm_access(LCD_pm_dev);
3387#endif
3388
3389 plane = fbinfo2index(info);
3390 print_dbg("au1200fb: ioctl %d on plane %d\n", cmd, plane);
3391
3392 if (cmd == AU1200_LCD_FB_IOCTL) {
3393 struct au1200_lcd_iodata_t iodata;
3394
3395 if (copy_from_user(&iodata, (void __user *) arg, sizeof(iodata)))
3396 return -EFAULT;
3397
3398 print_dbg("FB IOCTL called\n");
3399
3400 switch (iodata.subcmd) {
3401 case AU1200_LCD_SET_SCREEN:
3402 print_dbg("AU1200_LCD_SET_SCREEN\n");
3403 set_global(cmd, &iodata.global);
3404 break;
3405
3406 case AU1200_LCD_GET_SCREEN:
3407 print_dbg("AU1200_LCD_GET_SCREEN\n");
3408 get_global(cmd, &iodata.global);
3409 break;
3410
3411 case AU1200_LCD_SET_WINDOW:
3412 print_dbg("AU1200_LCD_SET_WINDOW\n");
3413 set_window(plane, &iodata.window);
3414 break;
3415
3416 case AU1200_LCD_GET_WINDOW:
3417 print_dbg("AU1200_LCD_GET_WINDOW\n");
3418 get_window(plane, &iodata.window);
3419 break;
3420
3421 case AU1200_LCD_SET_PANEL:
3422 print_dbg("AU1200_LCD_SET_PANEL\n");
3423 if ((iodata.global.panel_choice >= 0) &&
3424 (iodata.global.panel_choice <
3425 NUM_PANELS))
3426 {
3427 struct panel_settings *newpanel;
3428 panel_index = iodata.global.panel_choice;
3429 newpanel = &known_lcd_panels[panel_index];
3430 au1200_setpanel(newpanel);
3431 }
3432 break;
3433
3434 case AU1200_LCD_GET_PANEL:
3435 print_dbg("AU1200_LCD_GET_PANEL\n");
3436 iodata.global.panel_choice = panel_index;
3437 break;
3438
3439 default:
3440 return -EINVAL;
3441 }
3442
3443 val = copy_to_user((void __user *) arg, &iodata, sizeof(iodata));
3444 if (val) {
3445 print_dbg("error: could not copy %d bytes\n", val);
3446 return -EFAULT;
3447 }
3448 }
3449
3450 return 0;
3451}
3452
3453
3454static struct fb_ops au1200fb_fb_ops = {
3455 .owner = THIS_MODULE,
3456 .fb_check_var = au1200fb_fb_check_var,
3457 .fb_set_par = au1200fb_fb_set_par,
3458 .fb_setcolreg = au1200fb_fb_setcolreg,
3459 .fb_blank = au1200fb_fb_blank,
3460 .fb_fillrect = cfb_fillrect,
3461 .fb_copyarea = cfb_copyarea,
3462 .fb_imageblit = cfb_imageblit,
3463 .fb_sync = NULL,
3464 .fb_ioctl = au1200fb_ioctl,
3465 .fb_mmap = au1200fb_fb_mmap,
3466};
3467
3468/*-------------------------------------------------------------------------*/
3469
3470static irqreturn_t au1200fb_handle_irq(int irq, void* dev_id, struct pt_regs *regs)
3471{
3472 /* Nothing to do for now, just clear any pending interrupt */
3473 lcd->intstatus = lcd->intstatus;
3474 au_sync();
3475
3476 return IRQ_HANDLED;
3477}
3478
3479/*-------------------------------------------------------------------------*/
3480
3481/* AU1200 LCD device probe helpers */
3482
3483static int au1200fb_init_fbinfo(struct au1200fb_device *fbdev)
3484{
3485 struct fb_info *fbi = &fbdev->fb_info;
3486 int bpp;
3487
3488 memset(fbi, 0, sizeof(struct fb_info));
3489 fbi->fbops = &au1200fb_fb_ops;
3490
3491 bpp = winbpp(win->w[fbdev->plane].mode_winctrl1);
3492
3493 /* Copy monitor specs from panel data */
3494 /* fixme: we're setting up LCD controller windows, so these dont give a
3495 damn as to what the monitor specs are (the panel itself does, but that
3496 isnt done here...so maybe need a generic catchall monitor setting??? */
3497 memcpy(&fbi->monspecs, &panel->monspecs, sizeof(struct fb_monspecs));
3498
3499 /* We first try the user mode passed in argument. If that failed,
3500 * or if no one has been specified, we default to the first mode of the
3501 * panel list. Note that after this call, var data will be set */
3502 if (!fb_find_mode(&fbi->var,
3503 fbi,
3504 NULL, /* drv_info.opt_mode, */
3505 fbi->monspecs.modedb,
3506 fbi->monspecs.modedb_len,
3507 fbi->monspecs.modedb,
3508 bpp)) {
3509
3510 print_err("Cannot find valid mode for panel %s", panel->name);
3511 return -EFAULT;
3512 }
3513
3514 fbi->pseudo_palette = kmalloc(sizeof(u32) * 16, GFP_KERNEL);
3515 if (!fbi->pseudo_palette) {
3516 return -ENOMEM;
3517 }
3518 memset(fbi->pseudo_palette, 0, sizeof(u32) * 16);
3519
3520 if (fb_alloc_cmap(&fbi->cmap, AU1200_LCD_NBR_PALETTE_ENTRIES, 0) < 0) {
3521 print_err("Fail to allocate colormap (%d entries)",
3522 AU1200_LCD_NBR_PALETTE_ENTRIES);
3523 kfree(fbi->pseudo_palette);
3524 return -EFAULT;
3525 }
3526
3527 strncpy(fbi->fix.id, "AU1200", sizeof(fbi->fix.id));
3528 fbi->fix.smem_start = fbdev->fb_phys;
3529 fbi->fix.smem_len = fbdev->fb_len;
3530 fbi->fix.type = FB_TYPE_PACKED_PIXELS;
3531 fbi->fix.xpanstep = 0;
3532 fbi->fix.ypanstep = 0;
3533 fbi->fix.mmio_start = 0;
3534 fbi->fix.mmio_len = 0;
3535 fbi->fix.accel = FB_ACCEL_NONE;
3536
3537 fbi->screen_base = (char __iomem *) fbdev->fb_mem;
3538
3539 au1200fb_update_fbinfo(fbi);
3540
3541 return 0;
3542}
3543
3544/*-------------------------------------------------------------------------*/
3545
3546/* AU1200 LCD controller device driver */
3547
3548static int au1200fb_drv_probe(struct device *dev)
3549{
3550 struct au1200fb_device *fbdev;
3551 unsigned long page;
3552 int bpp, plane, ret;
3553
3554 if (!dev)
3555 return -EINVAL;
3556
3557 for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane) {
3558 bpp = winbpp(win->w[plane].mode_winctrl1);
3559 if (win->w[plane].xres == 0)
3560 win->w[plane].xres = panel->Xres;
3561 if (win->w[plane].yres == 0)
3562 win->w[plane].yres = panel->Yres;
3563
3564 fbdev = &_au1200fb_devices[plane];
3565 memset(fbdev, 0, sizeof(struct au1200fb_device));
3566 fbdev->plane = plane;
3567
3568 /* Allocate the framebuffer to the maximum screen size */
3569 fbdev->fb_len = (win->w[plane].xres * win->w[plane].yres * bpp) / 8;
3570
3571 fbdev->fb_mem = dma_alloc_noncoherent(dev,
3572 PAGE_ALIGN(fbdev->fb_len),
3573 &fbdev->fb_phys, GFP_KERNEL);
3574 if (!fbdev->fb_mem) {
3575 print_err("fail to allocate frambuffer (size: %dK))",
3576 fbdev->fb_len / 1024);
3577 return -ENOMEM;
3578 }
3579
3580 /*
3581 * Set page reserved so that mmap will work. This is necessary
3582 * since we'll be remapping normal memory.
3583 */
3584 for (page = (unsigned long)fbdev->fb_phys;
3585 page < PAGE_ALIGN((unsigned long)fbdev->fb_phys +
3586 fbdev->fb_len);
3587 page += PAGE_SIZE) {
3588 SetPageReserved(pfn_to_page(page >> PAGE_SHIFT)); /* LCD DMA is NOT coherent on Au1200 */
3589 }
3590 print_dbg("Framebuffer memory map at %p", fbdev->fb_mem);
3591 print_dbg("phys=0x%08x, size=%dK", fbdev->fb_phys, fbdev->fb_len / 1024);
3592
3593 /* Init FB data */
3594 if ((ret = au1200fb_init_fbinfo(fbdev)) < 0)
3595 goto failed;
3596
3597 /* Register new framebuffer */
3598 if ((ret = register_framebuffer(&fbdev->fb_info)) < 0) {
3599 print_err("cannot register new framebuffer");
3600 goto failed;
3601 }
3602
3603 au1200fb_fb_set_par(&fbdev->fb_info);
3604
3605#if !defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_LOGO)
3606 if (plane == 0)
3607 if (fb_prepare_logo(&fbdev->fb_info, FB_ROTATE_UR)) {
3608 /* Start display and show logo on boot */
3609 fb_set_cmap(&fbdev->fb_info.cmap,
3610 &fbdev->fb_info);
3611
3612 fb_show_logo(&fbdev->fb_info, FB_ROTATE_UR);
3613 }
3614#endif
3615 }
3616
3617 /* Now hook interrupt too */
3618 if ((ret = request_irq(AU1200_LCD_INT, au1200fb_handle_irq,
3619 SA_INTERRUPT | SA_SHIRQ, "lcd", (void *)dev)) < 0) {
3620 print_err("fail to request interrupt line %d (err: %d)",
3621 AU1200_LCD_INT, ret);
3622 goto failed;
3623 }
3624
3625 return 0;
3626
3627failed:
3628 /* NOTE: This only does the current plane/window that failed; others are still active */
3629 if (fbdev->fb_mem)
3630 dma_free_noncoherent(dev, PAGE_ALIGN(fbdev->fb_len),
3631 fbdev->fb_mem, fbdev->fb_phys);
3632 if (fbdev->fb_info.cmap.len != 0)
3633 fb_dealloc_cmap(&fbdev->fb_info.cmap);
3634 if (fbdev->fb_info.pseudo_palette)
3635 kfree(fbdev->fb_info.pseudo_palette);
3636 if (plane == 0)
3637 free_irq(AU1200_LCD_INT, (void*)dev);
3638 return ret;
3639}
3640
3641static int au1200fb_drv_remove(struct device *dev)
3642{
3643 struct au1200fb_device *fbdev;
3644 int plane;
3645
3646 if (!dev)
3647 return -ENODEV;
3648
3649 /* Turn off the panel */
3650 au1200_setpanel(NULL);
3651
3652 for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane)
3653 {
3654 fbdev = &_au1200fb_devices[plane];
3655
3656 /* Clean up all probe data */
3657 unregister_framebuffer(&fbdev->fb_info);
3658 if (fbdev->fb_mem)
3659 dma_free_noncoherent(dev, PAGE_ALIGN(fbdev->fb_len),
3660 fbdev->fb_mem, fbdev->fb_phys);
3661 if (fbdev->fb_info.cmap.len != 0)
3662 fb_dealloc_cmap(&fbdev->fb_info.cmap);
3663 if (fbdev->fb_info.pseudo_palette)
3664 kfree(fbdev->fb_info.pseudo_palette);
3665 }
3666
3667 free_irq(AU1200_LCD_INT, (void *)dev);
3668
3669 return 0;
3670}
3671
3672#ifdef CONFIG_PM
3673static int au1200fb_drv_suspend(struct device *dev, u32 state, u32 level)
3674{
3675 /* TODO */
3676 return 0;
3677}
3678
3679static int au1200fb_drv_resume(struct device *dev, u32 level)
3680{
3681 /* TODO */
3682 return 0;
3683}
3684#endif /* CONFIG_PM */
3685
3686static struct device_driver au1200fb_driver = {
3687 .name = "au1200-lcd",
3688 .bus = &platform_bus_type,
3689 .probe = au1200fb_drv_probe,
3690 .remove = au1200fb_drv_remove,
3691#ifdef CONFIG_PM
3692 .suspend = au1200fb_drv_suspend,
3693 .resume = au1200fb_drv_resume,
3694#endif
3695};
3696
3697/*-------------------------------------------------------------------------*/
3698
3699/* Kernel driver */
3700
3701static void au1200fb_setup(void)
3702{
3703 char* options = NULL;
3704 char* this_opt;
3705 int num_panels = ARRAY_SIZE(known_lcd_panels);
3706 int panel_idx = -1;
3707
3708 fb_get_options(DRIVER_NAME, &options);
3709
3710 if (options) {
3711 while ((this_opt = strsep(&options,",")) != NULL) {
3712 /* Panel option - can be panel name,
3713 * "bs" for board-switch, or number/index */
3714 if (!strncmp(this_opt, "panel:", 6)) {
3715 int i;
3716 long int li;
3717 char *endptr;
3718 this_opt += 6;
3719 /* First check for index, which allows
3720 * to short circuit this mess */
3721 li = simple_strtol(this_opt, &endptr, 0);
3722 if (*endptr == '\0') {
3723 panel_idx = (int)li;
3724 }
3725 else if (strcmp(this_opt, "bs") == 0) {
3726 extern int board_au1200fb_panel(void);
3727 panel_idx = board_au1200fb_panel();
3728 }
3729
3730 else
3731 for (i = 0; i < num_panels; i++) {
3732 if (!strcmp(this_opt, known_lcd_panels[i].name)) {
3733 panel_idx = i;
3734 break;
3735 }
3736 }
3737
3738 if ((panel_idx < 0) || (panel_idx >= num_panels)) {
3739 print_warn("Panel %s not supported!", this_opt);
3740 }
3741 else
3742 panel_index = panel_idx;
3743 }
3744
3745 else if (strncmp(this_opt, "nohwcursor", 10) == 0) {
3746 nohwcursor = 1;
3747 }
3748
3749 /* Unsupported option */
3750 else {
3751 print_warn("Unsupported option \"%s\"", this_opt);
3752 }
3753 }
3754 }
3755}
3756
3757#ifdef CONFIG_PM
3758static int au1200fb_pm_callback(au1xxx_power_dev_t *dev,
3759 au1xxx_request_t request, void *data) {
3760 int retval = -1;
3761 unsigned int d = 0;
3762 unsigned int brightness = 0;
3763
3764 if (request == AU1XXX_PM_SLEEP) {
3765 board_au1200fb_panel_shutdown();
3766 }
3767 else if (request == AU1XXX_PM_WAKEUP) {
3768 if(dev->prev_state == SLEEP_STATE)
3769 {
3770 int plane;
3771 au1200_setpanel(panel);
3772 for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane) {
3773 struct au1200fb_device *fbdev;
3774 fbdev = &_au1200fb_devices[plane];
3775 au1200fb_fb_set_par(&fbdev->fb_info);
3776 }
3777 }
3778
3779 d = *((unsigned int*)data);
3780 if(d <=10) brightness = 26;
3781 else if(d<=20) brightness = 51;
3782 else if(d<=30) brightness = 77;
3783 else if(d<=40) brightness = 102;
3784 else if(d<=50) brightness = 128;
3785 else if(d<=60) brightness = 153;
3786 else if(d<=70) brightness = 179;
3787 else if(d<=80) brightness = 204;
3788 else if(d<=90) brightness = 230;
3789 else brightness = 255;
3790 set_brightness(brightness);
3791 } else if (request == AU1XXX_PM_GETSTATUS) {
3792 return dev->cur_state;
3793 } else if (request == AU1XXX_PM_ACCESS) {
3794 if (dev->cur_state != SLEEP_STATE)
3795 return retval;
3796 else {
3797 au1200_setpanel(panel);
3798 }
3799 } else if (request == AU1XXX_PM_IDLE) {
3800 } else if (request == AU1XXX_PM_CLEANUP) {
3801 }
3802
3803 return retval;
3804}
3805#endif
3806
3807static int __init au1200fb_init(void)
3808{
3809 print_info("" DRIVER_DESC "");
3810
3811 /* Setup driver with options */
3812 au1200fb_setup();
3813
3814 /* Point to the panel selected */
3815 panel = &known_lcd_panels[panel_index];
3816 win = &windows[window_index];
3817
3818 printk(DRIVER_NAME ": Panel %d %s\n", panel_index, panel->name);
3819 printk(DRIVER_NAME ": Win %d %s\n", window_index, win->name);
3820
3821 /* Kickstart the panel, the framebuffers/windows come soon enough */
3822 au1200_setpanel(panel);
3823
3824 #ifdef CONFIG_PM
3825 LCD_pm_dev = new_au1xxx_power_device("LCD", &au1200fb_pm_callback, NULL);
3826 if ( LCD_pm_dev == NULL)
3827 printk(KERN_INFO "Unable to create a power management device entry for the au1200fb.\n");
3828 else
3829 printk(KERN_INFO "Power management device entry for the au1200fb loaded.\n");
3830 #endif
3831
3832 return driver_register(&au1200fb_driver);
3833}
3834
3835static void __exit au1200fb_cleanup(void)
3836{
3837 driver_unregister(&au1200fb_driver);
3838}
3839
3840module_init(au1200fb_init);
3841module_exit(au1200fb_cleanup);
3842
3843MODULE_DESCRIPTION(DRIVER_DESC);
3844MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-10 06:41:29 -0500