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1 | /* |
2 | * BRIEF MODULE DESCRIPTION |
3 | * Au1200 LCD Driver. |
4 | * |
5 | * Copyright 2004-2005 AMD |
6 | * Author: AMD |
7 | * |
8 | * Based on: |
9 | * linux/drivers/video/skeletonfb.c -- Skeleton for a frame buffer device |
10 | * Created 28 Dec 1997 by Geert Uytterhoeven |
11 | * |
12 | * This program is free software; you can redistribute it and/or modify it |
13 | * under the terms of the GNU General Public License as published by the |
14 | * Free Software Foundation; either version 2 of the License, or (at your |
15 | * option) any later version. |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
19 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN |
20 | * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
23 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
24 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | * |
28 | * You should have received a copy of the GNU General Public License along |
29 | * with this program; if not, write to the Free Software Foundation, Inc., |
30 | * 675 Mass Ave, Cambridge, MA 02139, USA. |
31 | */ |
32 | |
33 | #include <linux/module.h> |
34 | #include <linux/platform_device.h> |
35 | #include <linux/kernel.h> |
36 | #include <linux/errno.h> |
37 | #include <linux/string.h> |
38 | #include <linux/mm.h> |
39 | #include <linux/fb.h> |
40 | #include <linux/init.h> |
41 | #include <linux/interrupt.h> |
42 | #include <linux/ctype.h> |
43 | #include <linux/dma-mapping.h> |
44 | |
45 | #include <asm/mach-au1x00/au1000.h> |
46 | #include "au1200fb.h" |
47 | |
48 | #ifdef CONFIG_PM |
49 | #include <asm/mach-au1x00/au1xxx_pm.h> |
50 | #endif |
51 | |
52 | #ifndef CONFIG_FB_AU1200_DEVS |
53 | #define CONFIG_FB_AU1200_DEVS 4 |
54 | #endif |
55 | |
56 | #define DRIVER_NAME "au1200fb" |
57 | #define DRIVER_DESC "LCD controller driver for AU1200 processors" |
58 | |
59 | #define DEBUG 1 |
60 | |
61 | #define print_err(f, arg...) printk(KERN_ERR DRIVER_NAME ": " f "\n", ## arg) |
62 | #define print_warn(f, arg...) printk(KERN_WARNING DRIVER_NAME ": " f "\n", ## arg) |
63 | #define print_info(f, arg...) printk(KERN_INFO DRIVER_NAME ": " f "\n", ## arg) |
64 | |
65 | #if DEBUG |
66 | #define print_dbg(f, arg...) printk(KERN_DEBUG __FILE__ ": " f "\n", ## arg) |
67 | #else |
68 | #define print_dbg(f, arg...) do {} while (0) |
69 | #endif |
70 | |
71 | |
72 | #define AU1200_LCD_FB_IOCTL 0x46FF |
73 | |
74 | #define AU1200_LCD_SET_SCREEN 1 |
75 | #define AU1200_LCD_GET_SCREEN 2 |
76 | #define AU1200_LCD_SET_WINDOW 3 |
77 | #define AU1200_LCD_GET_WINDOW 4 |
78 | #define AU1200_LCD_SET_PANEL 5 |
79 | #define AU1200_LCD_GET_PANEL 6 |
80 | |
81 | #define SCREEN_SIZE (1<< 1) |
82 | #define SCREEN_BACKCOLOR (1<< 2) |
83 | #define SCREEN_BRIGHTNESS (1<< 3) |
84 | #define SCREEN_COLORKEY (1<< 4) |
85 | #define SCREEN_MASK (1<< 5) |
86 | |
87 | struct au1200_lcd_global_regs_t { |
88 | unsigned int flags; |
89 | unsigned int xsize; |
90 | unsigned int ysize; |
91 | unsigned int backcolor; |
92 | unsigned int brightness; |
93 | unsigned int colorkey; |
94 | unsigned int mask; |
95 | unsigned int panel_choice; |
96 | char panel_desc[80]; |
97 | |
98 | }; |
99 | |
100 | #define WIN_POSITION (1<< 0) |
101 | #define WIN_ALPHA_COLOR (1<< 1) |
102 | #define WIN_ALPHA_MODE (1<< 2) |
103 | #define WIN_PRIORITY (1<< 3) |
104 | #define WIN_CHANNEL (1<< 4) |
105 | #define WIN_BUFFER_FORMAT (1<< 5) |
106 | #define WIN_COLOR_ORDER (1<< 6) |
107 | #define WIN_PIXEL_ORDER (1<< 7) |
108 | #define WIN_SIZE (1<< 8) |
109 | #define WIN_COLORKEY_MODE (1<< 9) |
110 | #define WIN_DOUBLE_BUFFER_MODE (1<< 10) |
111 | #define WIN_RAM_ARRAY_MODE (1<< 11) |
112 | #define WIN_BUFFER_SCALE (1<< 12) |
113 | #define WIN_ENABLE (1<< 13) |
114 | |
115 | struct au1200_lcd_window_regs_t { |
116 | unsigned int flags; |
117 | unsigned int xpos; |
118 | unsigned int ypos; |
119 | unsigned int alpha_color; |
120 | unsigned int alpha_mode; |
121 | unsigned int priority; |
122 | unsigned int channel; |
123 | unsigned int buffer_format; |
124 | unsigned int color_order; |
125 | unsigned int pixel_order; |
126 | unsigned int xsize; |
127 | unsigned int ysize; |
128 | unsigned int colorkey_mode; |
129 | unsigned int double_buffer_mode; |
130 | unsigned int ram_array_mode; |
131 | unsigned int xscale; |
132 | unsigned int yscale; |
133 | unsigned int enable; |
134 | }; |
135 | |
136 | |
137 | struct au1200_lcd_iodata_t { |
138 | unsigned int subcmd; |
139 | struct au1200_lcd_global_regs_t global; |
140 | struct au1200_lcd_window_regs_t window; |
141 | }; |
142 | |
143 | #if defined(__BIG_ENDIAN) |
144 | #define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_11 |
145 | #else |
146 | #define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_00 |
147 | #endif |
148 | #define LCD_CONTROL_DEFAULT_SBPPF LCD_CONTROL_SBPPF_565 |
149 | |
150 | /* Private, per-framebuffer management information (independent of the panel itself) */ |
151 | struct au1200fb_device { |
152 | struct fb_info fb_info; /* FB driver info record */ |
153 | |
154 | int plane; |
155 | unsigned char* fb_mem; /* FrameBuffer memory map */ |
156 | unsigned int fb_len; |
157 | dma_addr_t fb_phys; |
158 | }; |
159 | |
160 | static struct au1200fb_device _au1200fb_devices[CONFIG_FB_AU1200_DEVS]; |
161 | /********************************************************************/ |
162 | |
163 | /* LCD controller restrictions */ |
164 | #define AU1200_LCD_MAX_XRES 1280 |
165 | #define AU1200_LCD_MAX_YRES 1024 |
166 | #define AU1200_LCD_MAX_BPP 32 |
167 | #define AU1200_LCD_MAX_CLK 96000000 /* fixme: this needs to go away ? */ |
168 | #define AU1200_LCD_NBR_PALETTE_ENTRIES 256 |
169 | |
170 | /* Default number of visible screen buffer to allocate */ |
171 | #define AU1200FB_NBR_VIDEO_BUFFERS 1 |
172 | |
173 | /********************************************************************/ |
174 | |
175 | static struct au1200_lcd *lcd = (struct au1200_lcd *) AU1200_LCD_ADDR; |
176 | static int window_index = 2; /* default is zero */ |
177 | static int panel_index = 2; /* default is zero */ |
178 | static struct window_settings *win; |
179 | static struct panel_settings *panel; |
180 | static int noblanking = 1; |
181 | static int nohwcursor = 0; |
182 | |
183 | struct window_settings { |
184 | unsigned char name[64]; |
185 | uint32 mode_backcolor; |
186 | uint32 mode_colorkey; |
187 | uint32 mode_colorkeymsk; |
188 | struct { |
189 | int xres; |
190 | int yres; |
191 | int xpos; |
192 | int ypos; |
193 | uint32 mode_winctrl1; /* winctrl1[FRM,CCO,PO,PIPE] */ |
194 | uint32 mode_winenable; |
195 | } w[4]; |
196 | }; |
197 | |
198 | #if defined(__BIG_ENDIAN) |
199 | #define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_00 |
200 | #else |
201 | #define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_01 |
202 | #endif |
203 | |
204 | extern int board_au1200fb_panel_init (void); |
205 | extern int board_au1200fb_panel_shutdown (void); |
206 | |
207 | #ifdef CONFIG_PM |
208 | int au1200fb_pm_callback(au1xxx_power_dev_t *dev, |
209 | au1xxx_request_t request, void *data); |
210 | au1xxx_power_dev_t *LCD_pm_dev; |
211 | #endif |
212 | |
213 | /* |
214 | * Default window configurations |
215 | */ |
216 | static struct window_settings windows[] = { |
217 | { /* Index 0 */ |
218 | "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx", |
219 | /* mode_backcolor */ 0x006600ff, |
220 | /* mode_colorkey,msk*/ 0, 0, |
221 | { |
222 | { |
223 | /* xres, yres, xpos, ypos */ 0, 0, 0, 0, |
224 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | |
225 | LCD_WINCTRL1_PO_16BPP, |
226 | /* mode_winenable*/ LCD_WINENABLE_WEN0, |
227 | }, |
228 | { |
229 | /* xres, yres, xpos, ypos */ 100, 100, 100, 100, |
230 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | |
231 | LCD_WINCTRL1_PO_16BPP | |
232 | LCD_WINCTRL1_PIPE, |
233 | /* mode_winenable*/ LCD_WINENABLE_WEN1, |
234 | }, |
235 | { |
236 | /* xres, yres, xpos, ypos */ 0, 0, 0, 0, |
237 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | |
238 | LCD_WINCTRL1_PO_16BPP, |
239 | /* mode_winenable*/ 0, |
240 | }, |
241 | { |
242 | /* xres, yres, xpos, ypos */ 0, 0, 0, 0, |
243 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | |
244 | LCD_WINCTRL1_PO_16BPP | |
245 | LCD_WINCTRL1_PIPE, |
246 | /* mode_winenable*/ 0, |
247 | }, |
248 | }, |
249 | }, |
250 | |
251 | { /* Index 1 */ |
252 | "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx", |
253 | /* mode_backcolor */ 0x006600ff, |
254 | /* mode_colorkey,msk*/ 0, 0, |
255 | { |
256 | { |
257 | /* xres, yres, xpos, ypos */ 320, 240, 5, 5, |
258 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_24BPP | |
259 | LCD_WINCTRL1_PO_00, |
260 | /* mode_winenable*/ LCD_WINENABLE_WEN0, |
261 | }, |
262 | { |
263 | /* xres, yres, xpos, ypos */ 0, 0, 0, 0, |
264 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
265 | | LCD_WINCTRL1_PO_16BPP, |
266 | /* mode_winenable*/ 0, |
267 | }, |
268 | { |
269 | /* xres, yres, xpos, ypos */ 100, 100, 0, 0, |
270 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | |
271 | LCD_WINCTRL1_PO_16BPP | |
272 | LCD_WINCTRL1_PIPE, |
273 | /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/, |
274 | }, |
275 | { |
276 | /* xres, yres, xpos, ypos */ 200, 25, 0, 0, |
277 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | |
278 | LCD_WINCTRL1_PO_16BPP | |
279 | LCD_WINCTRL1_PIPE, |
280 | /* mode_winenable*/ 0, |
281 | }, |
282 | }, |
283 | }, |
284 | { /* Index 2 */ |
285 | "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx", |
286 | /* mode_backcolor */ 0x006600ff, |
287 | /* mode_colorkey,msk*/ 0, 0, |
288 | { |
289 | { |
290 | /* xres, yres, xpos, ypos */ 0, 0, 0, 0, |
291 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | |
292 | LCD_WINCTRL1_PO_16BPP, |
293 | /* mode_winenable*/ LCD_WINENABLE_WEN0, |
294 | }, |
295 | { |
296 | /* xres, yres, xpos, ypos */ 0, 0, 0, 0, |
297 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | |
298 | LCD_WINCTRL1_PO_16BPP, |
299 | /* mode_winenable*/ 0, |
300 | }, |
301 | { |
302 | /* xres, yres, xpos, ypos */ 0, 0, 0, 0, |
303 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_32BPP | |
304 | LCD_WINCTRL1_PO_00|LCD_WINCTRL1_PIPE, |
305 | /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/, |
306 | }, |
307 | { |
308 | /* xres, yres, xpos, ypos */ 0, 0, 0, 0, |
309 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | |
310 | LCD_WINCTRL1_PO_16BPP | |
311 | LCD_WINCTRL1_PIPE, |
312 | /* mode_winenable*/ 0, |
313 | }, |
314 | }, |
315 | }, |
316 | /* Need VGA 640 @ 24bpp, @ 32bpp */ |
317 | /* Need VGA 800 @ 24bpp, @ 32bpp */ |
318 | /* Need VGA 1024 @ 24bpp, @ 32bpp */ |
319 | }; |
320 | |
321 | /* |
322 | * Controller configurations for various panels. |
323 | */ |
324 | |
325 | struct panel_settings |
326 | { |
327 | const char name[25]; /* Full name <vendor>_<model> */ |
328 | |
329 | struct fb_monspecs monspecs; /* FB monitor specs */ |
330 | |
331 | /* panel timings */ |
332 | uint32 mode_screen; |
333 | uint32 mode_horztiming; |
334 | uint32 mode_verttiming; |
335 | uint32 mode_clkcontrol; |
336 | uint32 mode_pwmdiv; |
337 | uint32 mode_pwmhi; |
338 | uint32 mode_outmask; |
339 | uint32 mode_fifoctrl; |
340 | uint32 mode_toyclksrc; |
341 | uint32 mode_backlight; |
342 | uint32 mode_auxpll; |
343 | int (*device_init)(void); |
344 | int (*device_shutdown)(void); |
345 | #define Xres min_xres |
346 | #define Yres min_yres |
347 | u32 min_xres; /* Minimum horizontal resolution */ |
348 | u32 max_xres; /* Maximum horizontal resolution */ |
349 | u32 min_yres; /* Minimum vertical resolution */ |
350 | u32 max_yres; /* Maximum vertical resolution */ |
351 | }; |
352 | |
353 | /********************************************************************/ |
354 | /* fixme: Maybe a modedb for the CRT ? otherwise panels should be as-is */ |
355 | |
356 | /* List of panels known to work with the AU1200 LCD controller. |
357 | * To add a new panel, enter the same specifications as the |
358 | * Generic_TFT one, and MAKE SURE that it doesn't conflicts |
359 | * with the controller restrictions. Restrictions are: |
360 | * |
361 | * STN color panels: max_bpp <= 12 |
362 | * STN mono panels: max_bpp <= 4 |
363 | * TFT panels: max_bpp <= 16 |
364 | * max_xres <= 800 |
365 | * max_yres <= 600 |
366 | */ |
367 | static struct panel_settings known_lcd_panels[] = |
368 | { |
369 | [0] = { /* QVGA 320x240 H:33.3kHz V:110Hz */ |
370 | .name = "QVGA_320x240", |
371 | .monspecs = { |
372 | .modedb = NULL, |
373 | .modedb_len = 0, |
374 | .hfmin = 30000, |
375 | .hfmax = 70000, |
376 | .vfmin = 60, |
377 | .vfmax = 60, |
378 | .dclkmin = 6000000, |
379 | .dclkmax = 28000000, |
380 | .input = FB_DISP_RGB, |
381 | }, |
382 | .mode_screen = LCD_SCREEN_SX_N(320) | |
383 | LCD_SCREEN_SY_N(240), |
384 | .mode_horztiming = 0x00c4623b, |
385 | .mode_verttiming = 0x00502814, |
386 | .mode_clkcontrol = 0x00020002, /* /4=24Mhz */ |
387 | .mode_pwmdiv = 0x00000000, |
388 | .mode_pwmhi = 0x00000000, |
389 | .mode_outmask = 0x00FFFFFF, |
390 | .mode_fifoctrl = 0x2f2f2f2f, |
391 | .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ |
392 | .mode_backlight = 0x00000000, |
393 | .mode_auxpll = 8, /* 96MHz AUXPLL */ |
394 | .device_init = NULL, |
395 | .device_shutdown = NULL, |
396 | 320, 320, |
397 | 240, 240, |
398 | }, |
399 | |
400 | [1] = { /* VGA 640x480 H:30.3kHz V:58Hz */ |
401 | .name = "VGA_640x480", |
402 | .monspecs = { |
403 | .modedb = NULL, |
404 | .modedb_len = 0, |
405 | .hfmin = 30000, |
406 | .hfmax = 70000, |
407 | .vfmin = 60, |
408 | .vfmax = 60, |
409 | .dclkmin = 6000000, |
410 | .dclkmax = 28000000, |
411 | .input = FB_DISP_RGB, |
412 | }, |
413 | .mode_screen = 0x13f9df80, |
414 | .mode_horztiming = 0x003c5859, |
415 | .mode_verttiming = 0x00741201, |
416 | .mode_clkcontrol = 0x00020001, /* /4=24Mhz */ |
417 | .mode_pwmdiv = 0x00000000, |
418 | .mode_pwmhi = 0x00000000, |
419 | .mode_outmask = 0x00FFFFFF, |
420 | .mode_fifoctrl = 0x2f2f2f2f, |
421 | .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ |
422 | .mode_backlight = 0x00000000, |
423 | .mode_auxpll = 8, /* 96MHz AUXPLL */ |
424 | .device_init = NULL, |
425 | .device_shutdown = NULL, |
426 | 640, 480, |
427 | 640, 480, |
428 | }, |
429 | |
430 | [2] = { /* SVGA 800x600 H:46.1kHz V:69Hz */ |
431 | .name = "SVGA_800x600", |
432 | .monspecs = { |
433 | .modedb = NULL, |
434 | .modedb_len = 0, |
435 | .hfmin = 30000, |
436 | .hfmax = 70000, |
437 | .vfmin = 60, |
438 | .vfmax = 60, |
439 | .dclkmin = 6000000, |
440 | .dclkmax = 28000000, |
441 | .input = FB_DISP_RGB, |
442 | }, |
443 | .mode_screen = 0x18fa5780, |
444 | .mode_horztiming = 0x00dc7e77, |
445 | .mode_verttiming = 0x00584805, |
446 | .mode_clkcontrol = 0x00020000, /* /2=48Mhz */ |
447 | .mode_pwmdiv = 0x00000000, |
448 | .mode_pwmhi = 0x00000000, |
449 | .mode_outmask = 0x00FFFFFF, |
450 | .mode_fifoctrl = 0x2f2f2f2f, |
451 | .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ |
452 | .mode_backlight = 0x00000000, |
453 | .mode_auxpll = 8, /* 96MHz AUXPLL */ |
454 | .device_init = NULL, |
455 | .device_shutdown = NULL, |
456 | 800, 800, |
457 | 600, 600, |
458 | }, |
459 | |
460 | [3] = { /* XVGA 1024x768 H:56.2kHz V:70Hz */ |
461 | .name = "XVGA_1024x768", |
462 | .monspecs = { |
463 | .modedb = NULL, |
464 | .modedb_len = 0, |
465 | .hfmin = 30000, |
466 | .hfmax = 70000, |
467 | .vfmin = 60, |
468 | .vfmax = 60, |
469 | .dclkmin = 6000000, |
470 | .dclkmax = 28000000, |
471 | .input = FB_DISP_RGB, |
472 | }, |
473 | .mode_screen = 0x1ffaff80, |
474 | .mode_horztiming = 0x007d0e57, |
475 | .mode_verttiming = 0x00740a01, |
476 | .mode_clkcontrol = 0x000A0000, /* /1 */ |
477 | .mode_pwmdiv = 0x00000000, |
478 | .mode_pwmhi = 0x00000000, |
479 | .mode_outmask = 0x00FFFFFF, |
480 | .mode_fifoctrl = 0x2f2f2f2f, |
481 | .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ |
482 | .mode_backlight = 0x00000000, |
483 | .mode_auxpll = 6, /* 72MHz AUXPLL */ |
484 | .device_init = NULL, |
485 | .device_shutdown = NULL, |
486 | 1024, 1024, |
487 | 768, 768, |
488 | }, |
489 | |
490 | [4] = { /* XVGA XVGA 1280x1024 H:68.5kHz V:65Hz */ |
491 | .name = "XVGA_1280x1024", |
492 | .monspecs = { |
493 | .modedb = NULL, |
494 | .modedb_len = 0, |
495 | .hfmin = 30000, |
496 | .hfmax = 70000, |
497 | .vfmin = 60, |
498 | .vfmax = 60, |
499 | .dclkmin = 6000000, |
500 | .dclkmax = 28000000, |
501 | .input = FB_DISP_RGB, |
502 | }, |
503 | .mode_screen = 0x27fbff80, |
504 | .mode_horztiming = 0x00cdb2c7, |
505 | .mode_verttiming = 0x00600002, |
506 | .mode_clkcontrol = 0x000A0000, /* /1 */ |
507 | .mode_pwmdiv = 0x00000000, |
508 | .mode_pwmhi = 0x00000000, |
509 | .mode_outmask = 0x00FFFFFF, |
510 | .mode_fifoctrl = 0x2f2f2f2f, |
511 | .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ |
512 | .mode_backlight = 0x00000000, |
513 | .mode_auxpll = 10, /* 120MHz AUXPLL */ |
514 | .device_init = NULL, |
515 | .device_shutdown = NULL, |
516 | 1280, 1280, |
517 | 1024, 1024, |
518 | }, |
519 | |
520 | [5] = { /* Samsung 1024x768 TFT */ |
521 | .name = "Samsung_1024x768_TFT", |
522 | .monspecs = { |
523 | .modedb = NULL, |
524 | .modedb_len = 0, |
525 | .hfmin = 30000, |
526 | .hfmax = 70000, |
527 | .vfmin = 60, |
528 | .vfmax = 60, |
529 | .dclkmin = 6000000, |
530 | .dclkmax = 28000000, |
531 | .input = FB_DISP_RGB, |
532 | }, |
533 | .mode_screen = 0x1ffaff80, |
534 | .mode_horztiming = 0x018cc677, |
535 | .mode_verttiming = 0x00241217, |
536 | .mode_clkcontrol = 0x00000000, /* SCB 0x1 /4=24Mhz */ |
537 | .mode_pwmdiv = 0x8000063f, /* SCB 0x0 */ |
538 | .mode_pwmhi = 0x03400000, /* SCB 0x0 */ |
539 | .mode_outmask = 0x00FFFFFF, |
540 | .mode_fifoctrl = 0x2f2f2f2f, |
541 | .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ |
542 | .mode_backlight = 0x00000000, |
543 | .mode_auxpll = 8, /* 96MHz AUXPLL */ |
544 | .device_init = board_au1200fb_panel_init, |
545 | .device_shutdown = board_au1200fb_panel_shutdown, |
546 | 1024, 1024, |
547 | 768, 768, |
548 | }, |
549 | |
550 | [6] = { /* Toshiba 640x480 TFT */ |
551 | .name = "Toshiba_640x480_TFT", |
552 | .monspecs = { |
553 | .modedb = NULL, |
554 | .modedb_len = 0, |
555 | .hfmin = 30000, |
556 | .hfmax = 70000, |
557 | .vfmin = 60, |
558 | .vfmax = 60, |
559 | .dclkmin = 6000000, |
560 | .dclkmax = 28000000, |
561 | .input = FB_DISP_RGB, |
562 | }, |
563 | .mode_screen = LCD_SCREEN_SX_N(640) | |
564 | LCD_SCREEN_SY_N(480), |
565 | .mode_horztiming = LCD_HORZTIMING_HPW_N(96) | |
566 | LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(51), |
567 | .mode_verttiming = LCD_VERTTIMING_VPW_N(2) | |
568 | LCD_VERTTIMING_VND1_N(11) | LCD_VERTTIMING_VND2_N(32), |
569 | .mode_clkcontrol = 0x00000000, /* /4=24Mhz */ |
570 | .mode_pwmdiv = 0x8000063f, |
571 | .mode_pwmhi = 0x03400000, |
572 | .mode_outmask = 0x00fcfcfc, |
573 | .mode_fifoctrl = 0x2f2f2f2f, |
574 | .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ |
575 | .mode_backlight = 0x00000000, |
576 | .mode_auxpll = 8, /* 96MHz AUXPLL */ |
577 | .device_init = board_au1200fb_panel_init, |
578 | .device_shutdown = board_au1200fb_panel_shutdown, |
579 | 640, 480, |
580 | 640, 480, |
581 | }, |
582 | |
583 | [7] = { /* Sharp 320x240 TFT */ |
584 | .name = "Sharp_320x240_TFT", |
585 | .monspecs = { |
586 | .modedb = NULL, |
587 | .modedb_len = 0, |
588 | .hfmin = 12500, |
589 | .hfmax = 20000, |
590 | .vfmin = 38, |
591 | .vfmax = 81, |
592 | .dclkmin = 4500000, |
593 | .dclkmax = 6800000, |
594 | .input = FB_DISP_RGB, |
595 | }, |
596 | .mode_screen = LCD_SCREEN_SX_N(320) | |
597 | LCD_SCREEN_SY_N(240), |
598 | .mode_horztiming = LCD_HORZTIMING_HPW_N(60) | |
599 | LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(2), |
600 | .mode_verttiming = LCD_VERTTIMING_VPW_N(2) | |
601 | LCD_VERTTIMING_VND1_N(2) | LCD_VERTTIMING_VND2_N(5), |
602 | .mode_clkcontrol = LCD_CLKCONTROL_PCD_N(7), /*16=6Mhz*/ |
603 | .mode_pwmdiv = 0x8000063f, |
604 | .mode_pwmhi = 0x03400000, |
605 | .mode_outmask = 0x00fcfcfc, |
606 | .mode_fifoctrl = 0x2f2f2f2f, |
607 | .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ |
608 | .mode_backlight = 0x00000000, |
609 | .mode_auxpll = 8, /* 96MHz AUXPLL */ |
610 | .device_init = board_au1200fb_panel_init, |
611 | .device_shutdown = board_au1200fb_panel_shutdown, |
612 | 320, 320, |
613 | 240, 240, |
614 | }, |
615 | |
616 | [8] = { /* Toppoly TD070WGCB2 7" 856x480 TFT */ |
617 | .name = "Toppoly_TD070WGCB2", |
618 | .monspecs = { |
619 | .modedb = NULL, |
620 | .modedb_len = 0, |
621 | .hfmin = 30000, |
622 | .hfmax = 70000, |
623 | .vfmin = 60, |
624 | .vfmax = 60, |
625 | .dclkmin = 6000000, |
626 | .dclkmax = 28000000, |
627 | .input = FB_DISP_RGB, |
628 | }, |
629 | .mode_screen = LCD_SCREEN_SX_N(856) | |
630 | LCD_SCREEN_SY_N(480), |
631 | .mode_horztiming = LCD_HORZTIMING_HND2_N(43) | |
632 | LCD_HORZTIMING_HND1_N(43) | LCD_HORZTIMING_HPW_N(114), |
633 | .mode_verttiming = LCD_VERTTIMING_VND2_N(20) | |
634 | LCD_VERTTIMING_VND1_N(21) | LCD_VERTTIMING_VPW_N(4), |
635 | .mode_clkcontrol = 0x00020001, /* /4=24Mhz */ |
636 | .mode_pwmdiv = 0x8000063f, |
637 | .mode_pwmhi = 0x03400000, |
638 | .mode_outmask = 0x00fcfcfc, |
639 | .mode_fifoctrl = 0x2f2f2f2f, |
640 | .mode_toyclksrc = 0x00000004, /* AUXPLL directly */ |
641 | .mode_backlight = 0x00000000, |
642 | .mode_auxpll = 8, /* 96MHz AUXPLL */ |
643 | .device_init = board_au1200fb_panel_init, |
644 | .device_shutdown = board_au1200fb_panel_shutdown, |
645 | 856, 856, |
646 | 480, 480, |
647 | }, |
648 | }; |
649 | |
650 | #define NUM_PANELS (ARRAY_SIZE(known_lcd_panels)) |
651 | |
652 | /********************************************************************/ |
653 | |
654 | #ifdef CONFIG_PM |
655 | static int set_brightness(unsigned int brightness) |
656 | { |
657 | unsigned int hi1, divider; |
658 | |
659 | /* limit brightness pwm duty to >= 30/1600 */ |
660 | if (brightness < 30) { |
661 | brightness = 30; |
662 | } |
663 | divider = (lcd->pwmdiv & 0x3FFFF) + 1; |
664 | hi1 = (lcd->pwmhi >> 16) + 1; |
665 | hi1 = (((brightness & 0xFF) + 1) * divider >> 8); |
666 | lcd->pwmhi &= 0xFFFF; |
667 | lcd->pwmhi |= (hi1 << 16); |
668 | |
669 | return brightness; |
670 | } |
671 | #endif /* CONFIG_PM */ |
672 | |
673 | static int winbpp (unsigned int winctrl1) |
674 | { |
675 | int bits = 0; |
676 | |
677 | /* how many bits are needed for each pixel format */ |
678 | switch (winctrl1 & LCD_WINCTRL1_FRM) { |
679 | case LCD_WINCTRL1_FRM_1BPP: |
680 | bits = 1; |
681 | break; |
682 | case LCD_WINCTRL1_FRM_2BPP: |
683 | bits = 2; |
684 | break; |
685 | case LCD_WINCTRL1_FRM_4BPP: |
686 | bits = 4; |
687 | break; |
688 | case LCD_WINCTRL1_FRM_8BPP: |
689 | bits = 8; |
690 | break; |
691 | case LCD_WINCTRL1_FRM_12BPP: |
692 | case LCD_WINCTRL1_FRM_16BPP655: |
693 | case LCD_WINCTRL1_FRM_16BPP565: |
694 | case LCD_WINCTRL1_FRM_16BPP556: |
695 | case LCD_WINCTRL1_FRM_16BPPI1555: |
696 | case LCD_WINCTRL1_FRM_16BPPI5551: |
697 | case LCD_WINCTRL1_FRM_16BPPA1555: |
698 | case LCD_WINCTRL1_FRM_16BPPA5551: |
699 | bits = 16; |
700 | break; |
701 | case LCD_WINCTRL1_FRM_24BPP: |
702 | case LCD_WINCTRL1_FRM_32BPP: |
703 | bits = 32; |
704 | break; |
705 | } |
706 | |
707 | return bits; |
708 | } |
709 | |
710 | static int fbinfo2index (struct fb_info *fb_info) |
711 | { |
712 | int i; |
713 | |
714 | for (i = 0; i < CONFIG_FB_AU1200_DEVS; ++i) { |
715 | if (fb_info == (struct fb_info *)(&_au1200fb_devices[i].fb_info)) |
716 | return i; |
717 | } |
718 | printk("au1200fb: ERROR: fbinfo2index failed!\n"); |
719 | return -1; |
720 | } |
721 | |
722 | static int au1200_setlocation (struct au1200fb_device *fbdev, int plane, |
723 | int xpos, int ypos) |
724 | { |
725 | uint32 winctrl0, winctrl1, winenable, fb_offset = 0; |
726 | int xsz, ysz; |
727 | |
728 | /* FIX!!! NOT CHECKING FOR COMPLETE OFFSCREEN YET */ |
729 | |
730 | winctrl0 = lcd->window[plane].winctrl0; |
731 | winctrl1 = lcd->window[plane].winctrl1; |
732 | winctrl0 &= (LCD_WINCTRL0_A | LCD_WINCTRL0_AEN); |
733 | winctrl1 &= ~(LCD_WINCTRL1_SZX | LCD_WINCTRL1_SZY); |
734 | |
735 | /* Check for off-screen adjustments */ |
736 | xsz = win->w[plane].xres; |
737 | ysz = win->w[plane].yres; |
738 | if ((xpos + win->w[plane].xres) > panel->Xres) { |
739 | /* Off-screen to the right */ |
740 | xsz = panel->Xres - xpos; /* off by 1 ??? */ |
741 | /*printk("off screen right\n");*/ |
742 | } |
743 | |
744 | if ((ypos + win->w[plane].yres) > panel->Yres) { |
745 | /* Off-screen to the bottom */ |
746 | ysz = panel->Yres - ypos; /* off by 1 ??? */ |
747 | /*printk("off screen bottom\n");*/ |
748 | } |
749 | |
750 | if (xpos < 0) { |
751 | /* Off-screen to the left */ |
752 | xsz = win->w[plane].xres + xpos; |
753 | fb_offset += (((0 - xpos) * winbpp(lcd->window[plane].winctrl1))/8); |
754 | xpos = 0; |
755 | /*printk("off screen left\n");*/ |
756 | } |
757 | |
758 | if (ypos < 0) { |
759 | /* Off-screen to the top */ |
760 | ysz = win->w[plane].yres + ypos; |
761 | /* 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 | |
792 | static void au1200_setpanel (struct panel_settings *newpanel) |
793 | { |
794 | /* |
795 | * Perform global setup/init of LCD controller |
796 | */ |
797 | uint32 winenable; |
798 | |
799 | /* Make sure all windows disabled */ |
800 | winenable = lcd->winenable; |
801 | lcd->winenable = 0; |
802 | au_sync(); |
803 | /* |
804 | * Ensure everything is disabled before reconfiguring |
805 | */ |
806 | if (lcd->screen & LCD_SCREEN_SEN) { |
807 | /* Wait for vertical sync period */ |
808 | lcd->intstatus = LCD_INT_SS; |
809 | while ((lcd->intstatus & LCD_INT_SS) == 0) { |
810 | au_sync(); |
811 | } |
812 | |
813 | lcd->screen &= ~LCD_SCREEN_SEN; /*disable the controller*/ |
814 | |
815 | do { |
816 | lcd->intstatus = lcd->intstatus; /*clear interrupts*/ |
817 | au_sync(); |
818 | /*wait for controller to shut down*/ |
819 | } while ((lcd->intstatus & LCD_INT_SD) == 0); |
820 | |
821 | /* Call shutdown of current panel (if up) */ |
822 | /* this must occur last, because if an external clock is driving |
823 | the controller, the clock cannot be turned off before first |
824 | shutting down the controller. |
825 | */ |
826 | if (panel->device_shutdown != NULL) |
827 | panel->device_shutdown(); |
828 | } |
829 | |
830 | /* Newpanel == NULL indicates a shutdown operation only */ |
831 | if (newpanel == NULL) |
832 | return; |
833 | |
834 | panel = newpanel; |
835 | |
836 | printk("Panel(%s), %dx%d\n", panel->name, panel->Xres, panel->Yres); |
837 | |
838 | /* |
839 | * Setup clocking if internal LCD clock source (assumes sys_auxpll valid) |
840 | */ |
841 | if (!(panel->mode_clkcontrol & LCD_CLKCONTROL_EXT)) |
842 | { |
843 | uint32 sys_clksrc; |
844 | au_writel(panel->mode_auxpll, SYS_AUXPLL); |
845 | sys_clksrc = au_readl(SYS_CLKSRC) & ~0x0000001f; |
846 | sys_clksrc |= panel->mode_toyclksrc; |
847 | au_writel(sys_clksrc, SYS_CLKSRC); |
848 | } |
849 | |
850 | /* |
851 | * Configure panel timings |
852 | */ |
853 | lcd->screen = panel->mode_screen; |
854 | lcd->horztiming = panel->mode_horztiming; |
855 | lcd->verttiming = panel->mode_verttiming; |
856 | lcd->clkcontrol = panel->mode_clkcontrol; |
857 | lcd->pwmdiv = panel->mode_pwmdiv; |
858 | lcd->pwmhi = panel->mode_pwmhi; |
859 | lcd->outmask = panel->mode_outmask; |
860 | lcd->fifoctrl = panel->mode_fifoctrl; |
861 | au_sync(); |
862 | |
863 | /* fixme: Check window settings to make sure still valid |
864 | * for new geometry */ |
865 | #if 0 |
866 | au1200_setlocation(fbdev, 0, win->w[0].xpos, win->w[0].ypos); |
867 | au1200_setlocation(fbdev, 1, win->w[1].xpos, win->w[1].ypos); |
868 | au1200_setlocation(fbdev, 2, win->w[2].xpos, win->w[2].ypos); |
869 | au1200_setlocation(fbdev, 3, win->w[3].xpos, win->w[3].ypos); |
870 | #endif |
871 | lcd->winenable = winenable; |
872 | |
873 | /* |
874 | * Re-enable screen now that it is configured |
875 | */ |
876 | lcd->screen |= LCD_SCREEN_SEN; |
877 | au_sync(); |
878 | |
879 | /* Call init of panel */ |
880 | if (panel->device_init != NULL) panel->device_init(); |
881 | |
882 | /* FIX!!!! not appropriate on panel change!!! Global setup/init */ |
883 | lcd->intenable = 0; |
884 | lcd->intstatus = ~0; |
885 | lcd->backcolor = win->mode_backcolor; |
886 | |
887 | /* Setup Color Key - FIX!!! */ |
888 | lcd->colorkey = win->mode_colorkey; |
889 | lcd->colorkeymsk = win->mode_colorkeymsk; |
890 | |
891 | /* Setup HWCursor - FIX!!! Need to support this eventually */ |
892 | lcd->hwc.cursorctrl = 0; |
893 | lcd->hwc.cursorpos = 0; |
894 | lcd->hwc.cursorcolor0 = 0; |
895 | lcd->hwc.cursorcolor1 = 0; |
896 | lcd->hwc.cursorcolor2 = 0; |
897 | lcd->hwc.cursorcolor3 = 0; |
898 | |
899 | |
900 | #if 0 |
901 | #define D(X) printk("%25s: %08X\n", #X, X) |
902 | D(lcd->screen); |
903 | D(lcd->horztiming); |
904 | D(lcd->verttiming); |
905 | D(lcd->clkcontrol); |
906 | D(lcd->pwmdiv); |
907 | D(lcd->pwmhi); |
908 | D(lcd->outmask); |
909 | D(lcd->fifoctrl); |
910 | D(lcd->window[0].winctrl0); |
911 | D(lcd->window[0].winctrl1); |
912 | D(lcd->window[0].winctrl2); |
913 | D(lcd->window[0].winbuf0); |
914 | D(lcd->window[0].winbuf1); |
915 | D(lcd->window[0].winbufctrl); |
916 | D(lcd->window[1].winctrl0); |
917 | D(lcd->window[1].winctrl1); |
918 | D(lcd->window[1].winctrl2); |
919 | D(lcd->window[1].winbuf0); |
920 | D(lcd->window[1].winbuf1); |
921 | D(lcd->window[1].winbufctrl); |
922 | D(lcd->window[2].winctrl0); |
923 | D(lcd->window[2].winctrl1); |
924 | D(lcd->window[2].winctrl2); |
925 | D(lcd->window[2].winbuf0); |
926 | D(lcd->window[2].winbuf1); |
927 | D(lcd->window[2].winbufctrl); |
928 | D(lcd->window[3].winctrl0); |
929 | D(lcd->window[3].winctrl1); |
930 | D(lcd->window[3].winctrl2); |
931 | D(lcd->window[3].winbuf0); |
932 | D(lcd->window[3].winbuf1); |
933 | D(lcd->window[3].winbufctrl); |
934 | D(lcd->winenable); |
935 | D(lcd->intenable); |
936 | D(lcd->intstatus); |
937 | D(lcd->backcolor); |
938 | D(lcd->winenable); |
939 | D(lcd->colorkey); |
940 | D(lcd->colorkeymsk); |
941 | D(lcd->hwc.cursorctrl); |
942 | D(lcd->hwc.cursorpos); |
943 | D(lcd->hwc.cursorcolor0); |
944 | D(lcd->hwc.cursorcolor1); |
945 | D(lcd->hwc.cursorcolor2); |
946 | D(lcd->hwc.cursorcolor3); |
947 | #endif |
948 | } |
949 | |
950 | static void au1200_setmode(struct au1200fb_device *fbdev) |
951 | { |
952 | int plane = fbdev->plane; |
953 | /* Window/plane setup */ |
954 | lcd->window[plane].winctrl1 = ( 0 |
955 | | LCD_WINCTRL1_PRI_N(plane) |
956 | | win->w[plane].mode_winctrl1 /* FRM,CCO,PO,PIPE */ |
957 | ) ; |
958 | |
959 | au1200_setlocation(fbdev, plane, win->w[plane].xpos, win->w[plane].ypos); |
960 | |
961 | lcd->window[plane].winctrl2 = ( 0 |
962 | | LCD_WINCTRL2_CKMODE_00 |
963 | | LCD_WINCTRL2_DBM |
964 | | LCD_WINCTRL2_BX_N( fbdev->fb_info.fix.line_length) |
965 | | LCD_WINCTRL2_SCX_1 |
966 | | LCD_WINCTRL2_SCY_1 |
967 | ) ; |
968 | lcd->winenable |= win->w[plane].mode_winenable; |
969 | au_sync(); |
970 | } |
971 | |
972 | |
973 | /* Inline helpers */ |
974 | |
975 | /*#define panel_is_dual(panel) ((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/ |
976 | /*#define panel_is_active(panel)((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/ |
977 | |
978 | #define panel_is_color(panel) ((panel->mode_screen & LCD_SCREEN_PT) <= LCD_SCREEN_PT_CDSTN) |
979 | |
980 | /* Bitfields format supported by the controller. */ |
981 | static struct fb_bitfield rgb_bitfields[][4] = { |
982 | /* Red, Green, Blue, Transp */ |
983 | [LCD_WINCTRL1_FRM_16BPP655 >> 25] = |
984 | { { 10, 6, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } }, |
985 | |
986 | [LCD_WINCTRL1_FRM_16BPP565 >> 25] = |
987 | { { 11, 5, 0 }, { 5, 6, 0 }, { 0, 5, 0 }, { 0, 0, 0 } }, |
988 | |
989 | [LCD_WINCTRL1_FRM_16BPP556 >> 25] = |
990 | { { 11, 5, 0 }, { 6, 5, 0 }, { 0, 6, 0 }, { 0, 0, 0 } }, |
991 | |
992 | [LCD_WINCTRL1_FRM_16BPPI1555 >> 25] = |
993 | { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } }, |
994 | |
995 | [LCD_WINCTRL1_FRM_16BPPI5551 >> 25] = |
996 | { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 0, 0 } }, |
997 | |
998 | [LCD_WINCTRL1_FRM_16BPPA1555 >> 25] = |
999 | { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 15, 1, 0 } }, |
1000 | |
1001 | [LCD_WINCTRL1_FRM_16BPPA5551 >> 25] = |
1002 | { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 1, 0 } }, |
1003 | |
1004 | [LCD_WINCTRL1_FRM_24BPP >> 25] = |
1005 | { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 0, 0, 0 } }, |
1006 | |
1007 | [LCD_WINCTRL1_FRM_32BPP >> 25] = |
1008 | { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 24, 0, 0 } }, |
1009 | }; |
1010 | |
1011 | /*-------------------------------------------------------------------------*/ |
1012 | |
1013 | /* Helpers */ |
1014 | |
1015 | static void au1200fb_update_fbinfo(struct fb_info *fbi) |
1016 | { |
1017 | /* FIX!!!! This also needs to take the window pixel format into account!!! */ |
1018 | |
1019 | /* Update var-dependent FB info */ |
1020 | if (panel_is_color(panel)) { |
1021 | if (fbi->var.bits_per_pixel <= 8) { |
1022 | /* palettized */ |
1023 | fbi->fix.visual = FB_VISUAL_PSEUDOCOLOR; |
1024 | fbi->fix.line_length = fbi->var.xres_virtual / |
1025 | (8/fbi->var.bits_per_pixel); |
1026 | } else { |
1027 | /* non-palettized */ |
1028 | fbi->fix.visual = FB_VISUAL_TRUECOLOR; |
1029 | fbi->fix.line_length = fbi->var.xres_virtual * (fbi->var.bits_per_pixel / 8); |
1030 | } |
1031 | } else { |
1032 | /* mono FIX!!! mono 8 and 4 bits */ |
1033 | fbi->fix.visual = FB_VISUAL_MONO10; |
1034 | fbi->fix.line_length = fbi->var.xres_virtual / 8; |
1035 | } |
1036 | |
1037 | fbi->screen_size = fbi->fix.line_length * fbi->var.yres_virtual; |
1038 | print_dbg("line length: %d\n", fbi->fix.line_length); |
1039 | print_dbg("bits_per_pixel: %d\n", fbi->var.bits_per_pixel); |
1040 | } |
1041 | |
1042 | /*-------------------------------------------------------------------------*/ |
1043 | |
1044 | /* AU1200 framebuffer driver */ |
1045 | |
1046 | /* fb_check_var |
1047 | * Validate var settings with hardware restrictions and modify it if necessary |
1048 | */ |
1049 | static int au1200fb_fb_check_var(struct fb_var_screeninfo *var, |
1050 | struct fb_info *fbi) |
1051 | { |
1052 | struct au1200fb_device *fbdev = (struct au1200fb_device *)fbi; |
1053 | u32 pixclock; |
1054 | int screen_size, plane; |
1055 | |
1056 | plane = fbdev->plane; |
1057 | |
1058 | /* Make sure that the mode respect all LCD controller and |
1059 | * panel restrictions. */ |
1060 | var->xres = win->w[plane].xres; |
1061 | var->yres = win->w[plane].yres; |
1062 | |
1063 | /* No need for virtual resolution support */ |
1064 | var->xres_virtual = var->xres; |
1065 | var->yres_virtual = var->yres; |
1066 | |
1067 | var->bits_per_pixel = winbpp(win->w[plane].mode_winctrl1); |
1068 | |
1069 | screen_size = var->xres_virtual * var->yres_virtual; |
1070 | if (var->bits_per_pixel > 8) screen_size *= (var->bits_per_pixel / 8); |
1071 | else screen_size /= (8/var->bits_per_pixel); |
1072 | |
1073 | if (fbdev->fb_len < screen_size) |
1074 | return -EINVAL; /* Virtual screen is to big, abort */ |
1075 | |
1076 | /* FIX!!!! what are the implicaitons of ignoring this for windows ??? */ |
1077 | /* The max LCD clock is fixed to 48MHz (value of AUX_CLK). The pixel |
1078 | * clock can only be obtain by dividing this value by an even integer. |
1079 | * Fallback to a slower pixel clock if necessary. */ |
1080 | pixclock = max((u32)(PICOS2KHZ(var->pixclock) * 1000), fbi->monspecs.dclkmin); |
1081 | pixclock = min(pixclock, min(fbi->monspecs.dclkmax, (u32)AU1200_LCD_MAX_CLK/2)); |
1082 | |
1083 | if (AU1200_LCD_MAX_CLK % pixclock) { |
1084 | int diff = AU1200_LCD_MAX_CLK % pixclock; |
1085 | pixclock -= diff; |
1086 | } |
1087 | |
1088 | var->pixclock = KHZ2PICOS(pixclock/1000); |
1089 | #if 0 |
1090 | if (!panel_is_active(panel)) { |
1091 | int pcd = AU1200_LCD_MAX_CLK / (pixclock * 2) - 1; |
1092 | |
1093 | if (!panel_is_color(panel) |
1094 | && (panel->control_base & LCD_CONTROL_MPI) && (pcd < 3)) { |
1095 | /* STN 8bit mono panel support is up to 6MHz pixclock */ |
1096 | var->pixclock = KHZ2PICOS(6000); |
1097 | } else if (!pcd) { |
1098 | /* Other STN panel support is up to 12MHz */ |
1099 | var->pixclock = KHZ2PICOS(12000); |
1100 | } |
1101 | } |
1102 | #endif |
1103 | /* Set bitfield accordingly */ |
1104 | switch (var->bits_per_pixel) { |
1105 | case 16: |
1106 | { |
1107 | /* 16bpp True color. |
1108 | * These must be set to MATCH WINCTRL[FORM] */ |
1109 | int idx; |
1110 | idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25; |
1111 | var->red = rgb_bitfields[idx][0]; |
1112 | var->green = rgb_bitfields[idx][1]; |
1113 | var->blue = rgb_bitfields[idx][2]; |
1114 | var->transp = rgb_bitfields[idx][3]; |
1115 | break; |
1116 | } |
1117 | |
1118 | case 32: |
1119 | { |
1120 | /* 32bpp True color. |
1121 | * These must be set to MATCH WINCTRL[FORM] */ |
1122 | int idx; |
1123 | idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25; |
1124 | var->red = rgb_bitfields[idx][0]; |
1125 | var->green = rgb_bitfields[idx][1]; |
1126 | var->blue = rgb_bitfields[idx][2]; |
1127 | var->transp = rgb_bitfields[idx][3]; |
1128 | break; |
1129 | } |
1130 | default: |
1131 | print_dbg("Unsupported depth %dbpp", var->bits_per_pixel); |
1132 | return -EINVAL; |
1133 | } |
1134 | |
1135 | return 0; |
1136 | } |
1137 | |
1138 | /* fb_set_par |
1139 | * Set hardware with var settings. This will enable the controller with a |
1140 | * specific mode, normally validated with the fb_check_var method |
1141 | */ |
1142 | static int au1200fb_fb_set_par(struct fb_info *fbi) |
1143 | { |
1144 | struct au1200fb_device *fbdev = (struct au1200fb_device *)fbi; |
1145 | |
1146 | au1200fb_update_fbinfo(fbi); |
1147 | au1200_setmode(fbdev); |
1148 | |
1149 | return 0; |
1150 | } |
1151 | |
1152 | /* fb_setcolreg |
1153 | * Set color in LCD palette. |
1154 | */ |
1155 | static int au1200fb_fb_setcolreg(unsigned regno, unsigned red, unsigned green, |
1156 | unsigned blue, unsigned transp, struct fb_info *fbi) |
1157 | { |
1158 | volatile u32 *palette = lcd->palette; |
1159 | u32 value; |
1160 | |
1161 | if (regno > (AU1200_LCD_NBR_PALETTE_ENTRIES - 1)) |
1162 | return -EINVAL; |
1163 | |
1164 | if (fbi->var.grayscale) { |
1165 | /* Convert color to grayscale */ |
1166 | red = green = blue = |
1167 | (19595 * red + 38470 * green + 7471 * blue) >> 16; |
1168 | } |
1169 | |
1170 | if (fbi->fix.visual == FB_VISUAL_TRUECOLOR) { |
1171 | /* Place color in the pseudopalette */ |
1172 | if (regno > 16) |
1173 | return -EINVAL; |
1174 | |
1175 | palette = (u32*) fbi->pseudo_palette; |
1176 | |
1177 | red >>= (16 - fbi->var.red.length); |
1178 | green >>= (16 - fbi->var.green.length); |
1179 | blue >>= (16 - fbi->var.blue.length); |
1180 | |
1181 | value = (red << fbi->var.red.offset) | |
1182 | (green << fbi->var.green.offset)| |
1183 | (blue << fbi->var.blue.offset); |
1184 | value &= 0xFFFF; |
1185 | |
1186 | } else if (1 /*FIX!!! panel_is_active(fbdev->panel)*/) { |
1187 | /* COLOR TFT PALLETTIZED (use RGB 565) */ |
1188 | value = (red & 0xF800)|((green >> 5) & |
1189 | 0x07E0)|((blue >> 11) & 0x001F); |
1190 | value &= 0xFFFF; |
1191 | |
1192 | } else if (0 /*panel_is_color(fbdev->panel)*/) { |
1193 | /* COLOR STN MODE */ |
1194 | value = 0x1234; |
1195 | value &= 0xFFF; |
1196 | } else { |
1197 | /* MONOCHROME MODE */ |
1198 | value = (green >> 12) & 0x000F; |
1199 | value &= 0xF; |
1200 | } |
1201 | |
1202 | palette[regno] = value; |
1203 | |
1204 | return 0; |
1205 | } |
1206 | |
1207 | /* fb_blank |
1208 | * Blank the screen. Depending on the mode, the screen will be |
1209 | * activated with the backlight color, or desactivated |
1210 | */ |
1211 | static int au1200fb_fb_blank(int blank_mode, struct fb_info *fbi) |
1212 | { |
1213 | /* Short-circuit screen blanking */ |
1214 | if (noblanking) |
1215 | return 0; |
1216 | |
1217 | switch (blank_mode) { |
1218 | |
1219 | case FB_BLANK_UNBLANK: |
1220 | case FB_BLANK_NORMAL: |
1221 | /* printk("turn on panel\n"); */ |
1222 | au1200_setpanel(panel); |
1223 | break; |
1224 | case FB_BLANK_VSYNC_SUSPEND: |
1225 | case FB_BLANK_HSYNC_SUSPEND: |
1226 | case FB_BLANK_POWERDOWN: |
1227 | /* printk("turn off panel\n"); */ |
1228 | au1200_setpanel(NULL); |
1229 | break; |
1230 | default: |
1231 | break; |
1232 | |
1233 | } |
1234 | |
1235 | /* FB_BLANK_NORMAL is a soft blank */ |
1236 | return (blank_mode == FB_BLANK_NORMAL) ? -EINVAL : 0; |
1237 | } |
1238 | |
1239 | /* fb_mmap |
1240 | * Map video memory in user space. We don't use the generic fb_mmap |
1241 | * method mainly to allow the use of the TLB streaming flag (CCA=6) |
1242 | */ |
1243 | static int au1200fb_fb_mmap(struct fb_info *info, struct vm_area_struct *vma) |
1244 | |
1245 | { |
1246 | unsigned int len; |
1247 | unsigned long start=0, off; |
1248 | struct au1200fb_device *fbdev = (struct au1200fb_device *) info; |
1249 | |
1250 | #ifdef CONFIG_PM |
1251 | au1xxx_pm_access(LCD_pm_dev); |
1252 | #endif |
1253 | |
1254 | if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) { |
1255 | return -EINVAL; |
1256 | } |
1257 | |
1258 | start = fbdev->fb_phys & PAGE_MASK; |
1259 | len = PAGE_ALIGN((start & ~PAGE_MASK) + fbdev->fb_len); |
1260 | |
1261 | off = vma->vm_pgoff << PAGE_SHIFT; |
1262 | |
1263 | if ((vma->vm_end - vma->vm_start + off) > len) { |
1264 | return -EINVAL; |
1265 | } |
1266 | |
1267 | off += start; |
1268 | vma->vm_pgoff = off >> PAGE_SHIFT; |
1269 | |
1270 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); |
1271 | pgprot_val(vma->vm_page_prot) |= _CACHE_MASK; /* CCA=7 */ |
1272 | |
1273 | vma->vm_flags |= VM_IO; |
1274 | |
1275 | return io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT, |
1276 | vma->vm_end - vma->vm_start, |
1277 | vma->vm_page_prot); |
1278 | |
1279 | return 0; |
1280 | } |
1281 | |
1282 | static void set_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata) |
1283 | { |
1284 | |
1285 | unsigned int hi1, divider; |
1286 | |
1287 | /* SCREEN_SIZE: user cannot reset size, must switch panel choice */ |
1288 | |
1289 | if (pdata->flags & SCREEN_BACKCOLOR) |
1290 | lcd->backcolor = pdata->backcolor; |
1291 | |
1292 | if (pdata->flags & SCREEN_BRIGHTNESS) { |
1293 | |
1294 | // limit brightness pwm duty to >= 30/1600 |
1295 | if (pdata->brightness < 30) { |
1296 | pdata->brightness = 30; |
1297 | } |
1298 | divider = (lcd->pwmdiv & 0x3FFFF) + 1; |
1299 | hi1 = (lcd->pwmhi >> 16) + 1; |
1300 | hi1 = (((pdata->brightness & 0xFF)+1) * divider >> 8); |
1301 | lcd->pwmhi &= 0xFFFF; |
1302 | lcd->pwmhi |= (hi1 << 16); |
1303 | } |
1304 | |
1305 | if (pdata->flags & SCREEN_COLORKEY) |
1306 | lcd->colorkey = pdata->colorkey; |
1307 | |
1308 | if (pdata->flags & SCREEN_MASK) |
1309 | lcd->colorkeymsk = pdata->mask; |
1310 | au_sync(); |
1311 | } |
1312 | |
1313 | static void get_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata) |
1314 | { |
1315 | unsigned int hi1, divider; |
1316 | |
1317 | pdata->xsize = ((lcd->screen & LCD_SCREEN_SX) >> 19) + 1; |
1318 | pdata->ysize = ((lcd->screen & LCD_SCREEN_SY) >> 8) + 1; |
1319 | |
1320 | pdata->backcolor = lcd->backcolor; |
1321 | pdata->colorkey = lcd->colorkey; |
1322 | pdata->mask = lcd->colorkeymsk; |
1323 | |
1324 | // brightness |
1325 | hi1 = (lcd->pwmhi >> 16) + 1; |
1326 | divider = (lcd->pwmdiv & 0x3FFFF) + 1; |
1327 | pdata->brightness = ((hi1 << 8) / divider) - 1; |
1328 | au_sync(); |
1329 | } |
1330 | |
1331 | static void set_window(unsigned int plane, |
1332 | struct au1200_lcd_window_regs_t *pdata) |
1333 | { |
1334 | unsigned int val, bpp; |
1335 | |
1336 | /* Window control register 0 */ |
1337 | if (pdata->flags & WIN_POSITION) { |
1338 | val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_OX | |
1339 | LCD_WINCTRL0_OY); |
1340 | val |= ((pdata->xpos << 21) & LCD_WINCTRL0_OX); |
1341 | val |= ((pdata->ypos << 10) & LCD_WINCTRL0_OY); |
1342 | lcd->window[plane].winctrl0 = val; |
1343 | } |
1344 | if (pdata->flags & WIN_ALPHA_COLOR) { |
1345 | val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_A); |
1346 | val |= ((pdata->alpha_color << 2) & LCD_WINCTRL0_A); |
1347 | lcd->window[plane].winctrl0 = val; |
1348 | } |
1349 | if (pdata->flags & WIN_ALPHA_MODE) { |
1350 | val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_AEN); |
1351 | val |= ((pdata->alpha_mode << 1) & LCD_WINCTRL0_AEN); |
1352 | lcd->window[plane].winctrl0 = val; |
1353 | } |
1354 | |
1355 | /* Window control register 1 */ |
1356 | if (pdata->flags & WIN_PRIORITY) { |
1357 | val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PRI); |
1358 | val |= ((pdata->priority << 30) & LCD_WINCTRL1_PRI); |
1359 | lcd->window[plane].winctrl1 = val; |
1360 | } |
1361 | if (pdata->flags & WIN_CHANNEL) { |
1362 | val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PIPE); |
1363 | val |= ((pdata->channel << 29) & LCD_WINCTRL1_PIPE); |
1364 | lcd->window[plane].winctrl1 = val; |
1365 | } |
1366 | if (pdata->flags & WIN_BUFFER_FORMAT) { |
1367 | val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_FRM); |
1368 | val |= ((pdata->buffer_format << 25) & LCD_WINCTRL1_FRM); |
1369 | lcd->window[plane].winctrl1 = val; |
1370 | } |
1371 | if (pdata->flags & WIN_COLOR_ORDER) { |
1372 | val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_CCO); |
1373 | val |= ((pdata->color_order << 24) & LCD_WINCTRL1_CCO); |
1374 | lcd->window[plane].winctrl1 = val; |
1375 | } |
1376 | if (pdata->flags & WIN_PIXEL_ORDER) { |
1377 | val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PO); |
1378 | val |= ((pdata->pixel_order << 22) & LCD_WINCTRL1_PO); |
1379 | lcd->window[plane].winctrl1 = val; |
1380 | } |
1381 | if (pdata->flags & WIN_SIZE) { |
1382 | val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_SZX | |
1383 | LCD_WINCTRL1_SZY); |
1384 | val |= (((pdata->xsize << 11) - 1) & LCD_WINCTRL1_SZX); |
1385 | val |= (((pdata->ysize) - 1) & LCD_WINCTRL1_SZY); |
1386 | lcd->window[plane].winctrl1 = val; |
1387 | /* program buffer line width */ |
1388 | bpp = winbpp(val) / 8; |
1389 | val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_BX); |
1390 | val |= (((pdata->xsize * bpp) << 8) & LCD_WINCTRL2_BX); |
1391 | lcd->window[plane].winctrl2 = val; |
1392 | } |
1393 | |
1394 | /* Window control register 2 */ |
1395 | if (pdata->flags & WIN_COLORKEY_MODE) { |
1396 | val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_CKMODE); |
1397 | val |= ((pdata->colorkey_mode << 24) & LCD_WINCTRL2_CKMODE); |
1398 | lcd->window[plane].winctrl2 = val; |
1399 | } |
1400 | if (pdata->flags & WIN_DOUBLE_BUFFER_MODE) { |
1401 | val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_DBM); |
1402 | val |= ((pdata->double_buffer_mode << 23) & LCD_WINCTRL2_DBM); |
1403 | lcd->window[plane].winctrl2 = val; |
1404 | } |
1405 | if (pdata->flags & WIN_RAM_ARRAY_MODE) { |
1406 | val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_RAM); |
1407 | val |= ((pdata->ram_array_mode << 21) & LCD_WINCTRL2_RAM); |
1408 | lcd->window[plane].winctrl2 = val; |
1409 | } |
1410 | |
1411 | /* Buffer line width programmed with WIN_SIZE */ |
1412 | |
1413 | if (pdata->flags & WIN_BUFFER_SCALE) { |
1414 | val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_SCX | |
1415 | LCD_WINCTRL2_SCY); |
1416 | val |= ((pdata->xsize << 11) & LCD_WINCTRL2_SCX); |
1417 | val |= ((pdata->ysize) & LCD_WINCTRL2_SCY); |
1418 | lcd->window[plane].winctrl2 = val; |
1419 | } |
1420 | |
1421 | if (pdata->flags & WIN_ENABLE) { |
1422 | val = lcd->winenable; |
1423 | val &= ~(1<<plane); |
1424 | val |= (pdata->enable & 1) << plane; |
1425 | lcd->winenable = val; |
1426 | } |
1427 | au_sync(); |
1428 | } |
1429 | |
1430 | static void get_window(unsigned int plane, |
1431 | struct au1200_lcd_window_regs_t *pdata) |
1432 | { |
1433 | /* Window control register 0 */ |
1434 | pdata->xpos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OX) >> 21; |
1435 | pdata->ypos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OY) >> 10; |
1436 | pdata->alpha_color = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_A) >> 2; |
1437 | pdata->alpha_mode = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_AEN) >> 1; |
1438 | |
1439 | /* Window control register 1 */ |
1440 | pdata->priority = (lcd->window[plane].winctrl1& LCD_WINCTRL1_PRI) >> 30; |
1441 | pdata->channel = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PIPE) >> 29; |
1442 | pdata->buffer_format = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_FRM) >> 25; |
1443 | pdata->color_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_CCO) >> 24; |
1444 | pdata->pixel_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PO) >> 22; |
1445 | pdata->xsize = ((lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZX) >> 11) + 1; |
1446 | pdata->ysize = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZY) + 1; |
1447 | |
1448 | /* Window control register 2 */ |
1449 | pdata->colorkey_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_CKMODE) >> 24; |
1450 | pdata->double_buffer_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_DBM) >> 23; |
1451 | pdata->ram_array_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_RAM) >> 21; |
1452 | |
1453 | pdata->enable = (lcd->winenable >> plane) & 1; |
1454 | au_sync(); |
1455 | } |
1456 | |
1457 | static int au1200fb_ioctl(struct fb_info *info, unsigned int cmd, |
1458 | unsigned long arg) |
1459 | { |
1460 | int plane; |
1461 | int val; |
1462 | |
1463 | #ifdef CONFIG_PM |
1464 | au1xxx_pm_access(LCD_pm_dev); |
1465 | #endif |
1466 | |
1467 | plane = fbinfo2index(info); |
1468 | print_dbg("au1200fb: ioctl %d on plane %d\n", cmd, plane); |
1469 | |
1470 | if (cmd == AU1200_LCD_FB_IOCTL) { |
1471 | struct au1200_lcd_iodata_t iodata; |
1472 | |
1473 | if (copy_from_user(&iodata, (void __user *) arg, sizeof(iodata))) |
1474 | return -EFAULT; |
1475 | |
1476 | print_dbg("FB IOCTL called\n"); |
1477 | |
1478 | switch (iodata.subcmd) { |
1479 | case AU1200_LCD_SET_SCREEN: |
1480 | print_dbg("AU1200_LCD_SET_SCREEN\n"); |
1481 | set_global(cmd, &iodata.global); |
1482 | break; |
1483 | |
1484 | case AU1200_LCD_GET_SCREEN: |
1485 | print_dbg("AU1200_LCD_GET_SCREEN\n"); |
1486 | get_global(cmd, &iodata.global); |
1487 | break; |
1488 | |
1489 | case AU1200_LCD_SET_WINDOW: |
1490 | print_dbg("AU1200_LCD_SET_WINDOW\n"); |
1491 | set_window(plane, &iodata.window); |
1492 | break; |
1493 | |
1494 | case AU1200_LCD_GET_WINDOW: |
1495 | print_dbg("AU1200_LCD_GET_WINDOW\n"); |
1496 | get_window(plane, &iodata.window); |
1497 | break; |
1498 | |
1499 | case AU1200_LCD_SET_PANEL: |
1500 | print_dbg("AU1200_LCD_SET_PANEL\n"); |
1501 | if ((iodata.global.panel_choice >= 0) && |
1502 | (iodata.global.panel_choice < |
1503 | NUM_PANELS)) |
1504 | { |
1505 | struct panel_settings *newpanel; |
1506 | panel_index = iodata.global.panel_choice; |
1507 | newpanel = &known_lcd_panels[panel_index]; |
1508 | au1200_setpanel(newpanel); |
1509 | } |
1510 | break; |
1511 | |
1512 | case AU1200_LCD_GET_PANEL: |
1513 | print_dbg("AU1200_LCD_GET_PANEL\n"); |
1514 | iodata.global.panel_choice = panel_index; |
1515 | break; |
1516 | |
1517 | default: |
1518 | return -EINVAL; |
1519 | } |
1520 | |
1521 | val = copy_to_user((void __user *) arg, &iodata, sizeof(iodata)); |
1522 | if (val) { |
1523 | print_dbg("error: could not copy %d bytes\n", val); |
1524 | return -EFAULT; |
1525 | } |
1526 | } |
1527 | |
1528 | return 0; |
1529 | } |
1530 | |
1531 | |
1532 | static struct fb_ops au1200fb_fb_ops = { |
1533 | .owner = THIS_MODULE, |
1534 | .fb_check_var = au1200fb_fb_check_var, |
1535 | .fb_set_par = au1200fb_fb_set_par, |
1536 | .fb_setcolreg = au1200fb_fb_setcolreg, |
1537 | .fb_blank = au1200fb_fb_blank, |
1538 | .fb_fillrect = cfb_fillrect, |
1539 | .fb_copyarea = cfb_copyarea, |
1540 | .fb_imageblit = cfb_imageblit, |
1541 | .fb_sync = NULL, |
1542 | .fb_ioctl = au1200fb_ioctl, |
1543 | .fb_mmap = au1200fb_fb_mmap, |
1544 | }; |
1545 | |
1546 | /*-------------------------------------------------------------------------*/ |
1547 | |
1548 | static irqreturn_t au1200fb_handle_irq(int irq, void* dev_id) |
1549 | { |
1550 | /* Nothing to do for now, just clear any pending interrupt */ |
1551 | lcd->intstatus = lcd->intstatus; |
1552 | au_sync(); |
1553 | |
1554 | return IRQ_HANDLED; |
1555 | } |
1556 | |
1557 | /*-------------------------------------------------------------------------*/ |
1558 | |
1559 | /* AU1200 LCD device probe helpers */ |
1560 | |
1561 | static int au1200fb_init_fbinfo(struct au1200fb_device *fbdev) |
1562 | { |
1563 | struct fb_info *fbi = &fbdev->fb_info; |
1564 | int bpp; |
1565 | |
1566 | memset(fbi, 0, sizeof(struct fb_info)); |
1567 | fbi->fbops = &au1200fb_fb_ops; |
1568 | |
1569 | bpp = winbpp(win->w[fbdev->plane].mode_winctrl1); |
1570 | |
1571 | /* Copy monitor specs from panel data */ |
1572 | /* fixme: we're setting up LCD controller windows, so these dont give a |
1573 | damn as to what the monitor specs are (the panel itself does, but that |
1574 | isnt done here...so maybe need a generic catchall monitor setting??? */ |
1575 | memcpy(&fbi->monspecs, &panel->monspecs, sizeof(struct fb_monspecs)); |
1576 | |
1577 | /* We first try the user mode passed in argument. If that failed, |
1578 | * or if no one has been specified, we default to the first mode of the |
1579 | * panel list. Note that after this call, var data will be set */ |
1580 | if (!fb_find_mode(&fbi->var, |
1581 | fbi, |
1582 | NULL, /* drv_info.opt_mode, */ |
1583 | fbi->monspecs.modedb, |
1584 | fbi->monspecs.modedb_len, |
1585 | fbi->monspecs.modedb, |
1586 | bpp)) { |
1587 | |
1588 | print_err("Cannot find valid mode for panel %s", panel->name); |
1589 | return -EFAULT; |
1590 | } |
1591 | |
1592 | fbi->pseudo_palette = kcalloc(16, sizeof(u32), GFP_KERNEL); |
1593 | if (!fbi->pseudo_palette) { |
1594 | return -ENOMEM; |
1595 | } |
1596 | |
1597 | if (fb_alloc_cmap(&fbi->cmap, AU1200_LCD_NBR_PALETTE_ENTRIES, 0) < 0) { |
1598 | print_err("Fail to allocate colormap (%d entries)", |
1599 | AU1200_LCD_NBR_PALETTE_ENTRIES); |
1600 | kfree(fbi->pseudo_palette); |
1601 | return -EFAULT; |
1602 | } |
1603 | |
1604 | strncpy(fbi->fix.id, "AU1200", sizeof(fbi->fix.id)); |
1605 | fbi->fix.smem_start = fbdev->fb_phys; |
1606 | fbi->fix.smem_len = fbdev->fb_len; |
1607 | fbi->fix.type = FB_TYPE_PACKED_PIXELS; |
1608 | fbi->fix.xpanstep = 0; |
1609 | fbi->fix.ypanstep = 0; |
1610 | fbi->fix.mmio_start = 0; |
1611 | fbi->fix.mmio_len = 0; |
1612 | fbi->fix.accel = FB_ACCEL_NONE; |
1613 | |
1614 | fbi->screen_base = (char __iomem *) fbdev->fb_mem; |
1615 | |
1616 | au1200fb_update_fbinfo(fbi); |
1617 | |
1618 | return 0; |
1619 | } |
1620 | |
1621 | /*-------------------------------------------------------------------------*/ |
1622 | |
1623 | /* AU1200 LCD controller device driver */ |
1624 | |
1625 | static int au1200fb_drv_probe(struct platform_device *dev) |
1626 | { |
1627 | struct au1200fb_device *fbdev; |
1628 | unsigned long page; |
1629 | int bpp, plane, ret; |
1630 | |
1631 | if (!dev) |
1632 | return -EINVAL; |
1633 | |
1634 | for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane) { |
1635 | bpp = winbpp(win->w[plane].mode_winctrl1); |
1636 | if (win->w[plane].xres == 0) |
1637 | win->w[plane].xres = panel->Xres; |
1638 | if (win->w[plane].yres == 0) |
1639 | win->w[plane].yres = panel->Yres; |
1640 | |
1641 | fbdev = &_au1200fb_devices[plane]; |
1642 | memset(fbdev, 0, sizeof(struct au1200fb_device)); |
1643 | fbdev->plane = plane; |
1644 | |
1645 | /* Allocate the framebuffer to the maximum screen size */ |
1646 | fbdev->fb_len = (win->w[plane].xres * win->w[plane].yres * bpp) / 8; |
1647 | |
1648 | fbdev->fb_mem = dma_alloc_noncoherent(&dev->dev, |
1649 | PAGE_ALIGN(fbdev->fb_len), |
1650 | &fbdev->fb_phys, GFP_KERNEL); |
1651 | if (!fbdev->fb_mem) { |
1652 | print_err("fail to allocate frambuffer (size: %dK))", |
1653 | fbdev->fb_len / 1024); |
1654 | return -ENOMEM; |
1655 | } |
1656 | |
1657 | /* |
1658 | * Set page reserved so that mmap will work. This is necessary |
1659 | * since we'll be remapping normal memory. |
1660 | */ |
1661 | for (page = (unsigned long)fbdev->fb_phys; |
1662 | page < PAGE_ALIGN((unsigned long)fbdev->fb_phys + |
1663 | fbdev->fb_len); |
1664 | page += PAGE_SIZE) { |
1665 | SetPageReserved(pfn_to_page(page >> PAGE_SHIFT)); /* LCD DMA is NOT coherent on Au1200 */ |
1666 | } |
1667 | print_dbg("Framebuffer memory map at %p", fbdev->fb_mem); |
1668 | print_dbg("phys=0x%08x, size=%dK", fbdev->fb_phys, fbdev->fb_len / 1024); |
1669 | |
1670 | /* Init FB data */ |
1671 | if ((ret = au1200fb_init_fbinfo(fbdev)) < 0) |
1672 | goto failed; |
1673 | |
1674 | /* Register new framebuffer */ |
1675 | if ((ret = register_framebuffer(&fbdev->fb_info)) < 0) { |
1676 | print_err("cannot register new framebuffer"); |
1677 | goto failed; |
1678 | } |
1679 | |
1680 | au1200fb_fb_set_par(&fbdev->fb_info); |
1681 | |
1682 | #if !defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_LOGO) |
1683 | if (plane == 0) |
1684 | if (fb_prepare_logo(&fbdev->fb_info, FB_ROTATE_UR)) { |
1685 | /* Start display and show logo on boot */ |
1686 | fb_set_cmap(&fbdev->fb_info.cmap, |
1687 | &fbdev->fb_info); |
1688 | |
1689 | fb_show_logo(&fbdev->fb_info, FB_ROTATE_UR); |
1690 | } |
1691 | #endif |
1692 | } |
1693 | |
1694 | /* Now hook interrupt too */ |
1695 | if ((ret = request_irq(AU1200_LCD_INT, au1200fb_handle_irq, |
1696 | IRQF_DISABLED | IRQF_SHARED, "lcd", (void *)dev)) < 0) { |
1697 | print_err("fail to request interrupt line %d (err: %d)", |
1698 | AU1200_LCD_INT, ret); |
1699 | goto failed; |
1700 | } |
1701 | |
1702 | return 0; |
1703 | |
1704 | failed: |
1705 | /* NOTE: This only does the current plane/window that failed; others are still active */ |
1706 | if (fbdev->fb_mem) |
1707 | dma_free_noncoherent(dev, PAGE_ALIGN(fbdev->fb_len), |
1708 | fbdev->fb_mem, fbdev->fb_phys); |
1709 | if (fbdev->fb_info.cmap.len != 0) |
1710 | fb_dealloc_cmap(&fbdev->fb_info.cmap); |
1711 | if (fbdev->fb_info.pseudo_palette) |
1712 | kfree(fbdev->fb_info.pseudo_palette); |
1713 | if (plane == 0) |
1714 | free_irq(AU1200_LCD_INT, (void*)dev); |
1715 | return ret; |
1716 | } |
1717 | |
1718 | static int au1200fb_drv_remove(struct platform_device *dev) |
1719 | { |
1720 | struct au1200fb_device *fbdev; |
1721 | int plane; |
1722 | |
1723 | if (!dev) |
1724 | return -ENODEV; |
1725 | |
1726 | /* Turn off the panel */ |
1727 | au1200_setpanel(NULL); |
1728 | |
1729 | for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane) |
1730 | { |
1731 | fbdev = &_au1200fb_devices[plane]; |
1732 | |
1733 | /* Clean up all probe data */ |
1734 | unregister_framebuffer(&fbdev->fb_info); |
1735 | if (fbdev->fb_mem) |
1736 | dma_free_noncoherent(&dev->dev, |
1737 | 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 |
1751 | static int au1200fb_drv_suspend(struct platform_device *dev, u32 state) |
1752 | { |
1753 | /* TODO */ |
1754 | return 0; |
1755 | } |
1756 | |
1757 | static int au1200fb_drv_resume(struct platform_device *dev) |
1758 | { |
1759 | /* TODO */ |
1760 | return 0; |
1761 | } |
1762 | #endif /* CONFIG_PM */ |
1763 | |
1764 | static struct platform_driver au1200fb_driver = { |
1765 | .driver = { |
1766 | .name = "au1200-lcd", |
1767 | .owner = THIS_MODULE, |
1768 | }, |
1769 | .probe = au1200fb_drv_probe, |
1770 | .remove = au1200fb_drv_remove, |
1771 | #ifdef CONFIG_PM |
1772 | .suspend = au1200fb_drv_suspend, |
1773 | .resume = au1200fb_drv_resume, |
1774 | #endif |
1775 | }; |
1776 | |
1777 | /*-------------------------------------------------------------------------*/ |
1778 | |
1779 | /* Kernel driver */ |
1780 | |
1781 | static void au1200fb_setup(void) |
1782 | { |
1783 | char* options = NULL; |
1784 | char* this_opt; |
1785 | int num_panels = ARRAY_SIZE(known_lcd_panels); |
1786 | int panel_idx = -1; |
1787 | |
1788 | fb_get_options(DRIVER_NAME, &options); |
1789 | |
1790 | if (options) { |
1791 | while ((this_opt = strsep(&options,",")) != NULL) { |
1792 | /* Panel option - can be panel name, |
1793 | * "bs" for board-switch, or number/index */ |
1794 | if (!strncmp(this_opt, "panel:", 6)) { |
1795 | int i; |
1796 | long int li; |
1797 | char *endptr; |
1798 | this_opt += 6; |
1799 | /* First check for index, which allows |
1800 | * to short circuit this mess */ |
1801 | li = simple_strtol(this_opt, &endptr, 0); |
1802 | if (*endptr == '\0') { |
1803 | panel_idx = (int)li; |
1804 | } |
1805 | else if (strcmp(this_opt, "bs") == 0) { |
1806 | extern int board_au1200fb_panel(void); |
1807 | panel_idx = board_au1200fb_panel(); |
1808 | } |
1809 | |
1810 | else |
1811 | for (i = 0; i < num_panels; i++) { |
1812 | if (!strcmp(this_opt, known_lcd_panels[i].name)) { |
1813 | panel_idx = i; |
1814 | break; |
1815 | } |
1816 | } |
1817 | |
1818 | if ((panel_idx < 0) || (panel_idx >= num_panels)) { |
1819 | print_warn("Panel %s not supported!", this_opt); |
1820 | } |
1821 | else |
1822 | panel_index = panel_idx; |
1823 | } |
1824 | |
1825 | else if (strncmp(this_opt, "nohwcursor", 10) == 0) { |
1826 | nohwcursor = 1; |
1827 | } |
1828 | |
1829 | /* Unsupported option */ |
1830 | else { |
1831 | print_warn("Unsupported option \"%s\"", this_opt); |
1832 | } |
1833 | } |
1834 | } |
1835 | } |
1836 | |
1837 | #ifdef CONFIG_PM |
1838 | static int au1200fb_pm_callback(au1xxx_power_dev_t *dev, |
1839 | au1xxx_request_t request, void *data) { |
1840 | int retval = -1; |
1841 | unsigned int d = 0; |
1842 | unsigned int brightness = 0; |
1843 | |
1844 | if (request == AU1XXX_PM_SLEEP) { |
1845 | board_au1200fb_panel_shutdown(); |
1846 | } |
1847 | else if (request == AU1XXX_PM_WAKEUP) { |
1848 | if(dev->prev_state == SLEEP_STATE) |
1849 | { |
1850 | int plane; |
1851 | au1200_setpanel(panel); |
1852 | for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane) { |
1853 | struct au1200fb_device *fbdev; |
1854 | fbdev = &_au1200fb_devices[plane]; |
1855 | au1200fb_fb_set_par(&fbdev->fb_info); |
1856 | } |
1857 | } |
1858 | |
1859 | d = *((unsigned int*)data); |
1860 | if(d <=10) brightness = 26; |
1861 | else if(d<=20) brightness = 51; |
1862 | else if(d<=30) brightness = 77; |
1863 | else if(d<=40) brightness = 102; |
1864 | else if(d<=50) brightness = 128; |
1865 | else if(d<=60) brightness = 153; |
1866 | else if(d<=70) brightness = 179; |
1867 | else if(d<=80) brightness = 204; |
1868 | else if(d<=90) brightness = 230; |
1869 | else brightness = 255; |
1870 | set_brightness(brightness); |
1871 | } else if (request == AU1XXX_PM_GETSTATUS) { |
1872 | return dev->cur_state; |
1873 | } else if (request == AU1XXX_PM_ACCESS) { |
1874 | if (dev->cur_state != SLEEP_STATE) |
1875 | return retval; |
1876 | else { |
1877 | au1200_setpanel(panel); |
1878 | } |
1879 | } else if (request == AU1XXX_PM_IDLE) { |
1880 | } else if (request == AU1XXX_PM_CLEANUP) { |
1881 | } |
1882 | |
1883 | return retval; |
1884 | } |
1885 | #endif |
1886 | |
1887 | static int __init au1200fb_init(void) |
1888 | { |
1889 | print_info("" DRIVER_DESC ""); |
1890 | |
1891 | /* Setup driver with options */ |
1892 | au1200fb_setup(); |
1893 | |
1894 | /* Point to the panel selected */ |
1895 | panel = &known_lcd_panels[panel_index]; |
1896 | win = &windows[window_index]; |
1897 | |
1898 | printk(DRIVER_NAME ": Panel %d %s\n", panel_index, panel->name); |
1899 | printk(DRIVER_NAME ": Win %d %s\n", window_index, win->name); |
1900 | |
1901 | /* Kickstart the panel, the framebuffers/windows come soon enough */ |
1902 | au1200_setpanel(panel); |
1903 | |
1904 | #ifdef CONFIG_PM |
1905 | LCD_pm_dev = new_au1xxx_power_device("LCD", &au1200fb_pm_callback, NULL); |
1906 | if ( LCD_pm_dev == NULL) |
1907 | printk(KERN_INFO "Unable to create a power management device entry for the au1200fb.\n"); |
1908 | else |
1909 | printk(KERN_INFO "Power management device entry for the au1200fb loaded.\n"); |
1910 | #endif |
1911 | |
1912 | return platform_driver_register(&au1200fb_driver); |
1913 | } |
1914 | |
1915 | static void __exit au1200fb_cleanup(void) |
1916 | { |
1917 | platform_driver_unregister(&au1200fb_driver); |
1918 | } |
1919 | |
1920 | module_init(au1200fb_init); |
1921 | module_exit(au1200fb_cleanup); |
1922 | |
1923 | MODULE_DESCRIPTION(DRIVER_DESC); |
1924 | MODULE_LICENSE("GPL"); |
1925 |
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