1 | /* |
2 | * BRIEF MODULE DESCRIPTION |
3 | * Au1200 LCD Driver. |
4 | * |
5 | * Copyright 2004-2005 AMD |
6 | * Author: AMD |
7 | * |
8 | * Based on: |
9 | * linux/drivers/video/skeletonfb.c -- Skeleton for a frame buffer device |
10 | * Created 28 Dec 1997 by Geert Uytterhoeven |
11 | * |
12 | * This program is free software; you can redistribute it and/or modify it |
13 | * under the terms of the GNU General Public License as published by the |
14 | * Free Software Foundation; either version 2 of the License, or (at your |
15 | * option) any later version. |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
19 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN |
20 | * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
23 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
24 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | * |
28 | * You should have received a copy of the GNU General Public License along |
29 | * with this program; if not, write to the Free Software Foundation, Inc., |
30 | * 675 Mass Ave, Cambridge, MA 02139, USA. |
31 | */ |
32 | |
33 | #include <linux/clk.h> |
34 | #include <linux/module.h> |
35 | #include <linux/platform_device.h> |
36 | #include <linux/kernel.h> |
37 | #include <linux/errno.h> |
38 | #include <linux/string.h> |
39 | #include <linux/mm.h> |
40 | #include <linux/fb.h> |
41 | #include <linux/init.h> |
42 | #include <linux/interrupt.h> |
43 | #include <linux/ctype.h> |
44 | #include <linux/dma-mapping.h> |
45 | #include <linux/slab.h> |
46 | #include <linux/uaccess.h> |
47 | |
48 | #include <asm/mach-au1x00/au1000.h> |
49 | #include <asm/mach-au1x00/au1200fb.h> /* platform_data */ |
50 | #include "au1200fb.h" |
51 | |
52 | #define DRIVER_NAME "au1200fb" |
53 | #define DRIVER_DESC "LCD controller driver for AU1200 processors" |
54 | |
55 | #define DEBUG 0 |
56 | |
57 | #define print_err(f, arg...) printk(KERN_ERR DRIVER_NAME ": " f "\n", ## arg) |
58 | #define print_warn(f, arg...) printk(KERN_WARNING DRIVER_NAME ": " f "\n", ## arg) |
59 | #define print_info(f, arg...) printk(KERN_INFO DRIVER_NAME ": " f "\n", ## arg) |
60 | |
61 | #if DEBUG |
62 | #define print_dbg(f, arg...) printk(KERN_DEBUG __FILE__ ": " f "\n", ## arg) |
63 | #else |
64 | #define print_dbg(f, arg...) do {} while (0) |
65 | #endif |
66 | |
67 | |
68 | #define AU1200_LCD_FB_IOCTL 0x46FF |
69 | |
70 | #define AU1200_LCD_SET_SCREEN 1 |
71 | #define AU1200_LCD_GET_SCREEN 2 |
72 | #define AU1200_LCD_SET_WINDOW 3 |
73 | #define AU1200_LCD_GET_WINDOW 4 |
74 | #define AU1200_LCD_SET_PANEL 5 |
75 | #define AU1200_LCD_GET_PANEL 6 |
76 | |
77 | #define SCREEN_SIZE (1<< 1) |
78 | #define SCREEN_BACKCOLOR (1<< 2) |
79 | #define SCREEN_BRIGHTNESS (1<< 3) |
80 | #define SCREEN_COLORKEY (1<< 4) |
81 | #define SCREEN_MASK (1<< 5) |
82 | |
83 | struct au1200_lcd_global_regs_t { |
84 | unsigned int flags; |
85 | unsigned int xsize; |
86 | unsigned int ysize; |
87 | unsigned int backcolor; |
88 | unsigned int brightness; |
89 | unsigned int colorkey; |
90 | unsigned int mask; |
91 | unsigned int panel_choice; |
92 | char panel_desc[80]; |
93 | |
94 | }; |
95 | |
96 | #define WIN_POSITION (1<< 0) |
97 | #define WIN_ALPHA_COLOR (1<< 1) |
98 | #define WIN_ALPHA_MODE (1<< 2) |
99 | #define WIN_PRIORITY (1<< 3) |
100 | #define WIN_CHANNEL (1<< 4) |
101 | #define WIN_BUFFER_FORMAT (1<< 5) |
102 | #define WIN_COLOR_ORDER (1<< 6) |
103 | #define WIN_PIXEL_ORDER (1<< 7) |
104 | #define WIN_SIZE (1<< 8) |
105 | #define WIN_COLORKEY_MODE (1<< 9) |
106 | #define WIN_DOUBLE_BUFFER_MODE (1<< 10) |
107 | #define WIN_RAM_ARRAY_MODE (1<< 11) |
108 | #define WIN_BUFFER_SCALE (1<< 12) |
109 | #define WIN_ENABLE (1<< 13) |
110 | |
111 | struct au1200_lcd_window_regs_t { |
112 | unsigned int flags; |
113 | unsigned int xpos; |
114 | unsigned int ypos; |
115 | unsigned int alpha_color; |
116 | unsigned int alpha_mode; |
117 | unsigned int priority; |
118 | unsigned int channel; |
119 | unsigned int buffer_format; |
120 | unsigned int color_order; |
121 | unsigned int pixel_order; |
122 | unsigned int xsize; |
123 | unsigned int ysize; |
124 | unsigned int colorkey_mode; |
125 | unsigned int double_buffer_mode; |
126 | unsigned int ram_array_mode; |
127 | unsigned int xscale; |
128 | unsigned int yscale; |
129 | unsigned int enable; |
130 | }; |
131 | |
132 | |
133 | struct au1200_lcd_iodata_t { |
134 | unsigned int subcmd; |
135 | struct au1200_lcd_global_regs_t global; |
136 | struct au1200_lcd_window_regs_t window; |
137 | }; |
138 | |
139 | #if defined(__BIG_ENDIAN) |
140 | #define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_11 |
141 | #else |
142 | #define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_00 |
143 | #endif |
144 | #define LCD_CONTROL_DEFAULT_SBPPF LCD_CONTROL_SBPPF_565 |
145 | |
146 | /* Private, per-framebuffer management information (independent of the panel itself) */ |
147 | struct au1200fb_device { |
148 | struct fb_info *fb_info; /* FB driver info record */ |
149 | struct au1200fb_platdata *pd; |
150 | struct device *dev; |
151 | |
152 | int plane; |
153 | unsigned char* fb_mem; /* FrameBuffer memory map */ |
154 | unsigned int fb_len; |
155 | dma_addr_t fb_phys; |
156 | }; |
157 | |
158 | /********************************************************************/ |
159 | |
160 | /* LCD controller restrictions */ |
161 | #define AU1200_LCD_MAX_XRES 1280 |
162 | #define AU1200_LCD_MAX_YRES 1024 |
163 | #define AU1200_LCD_MAX_BPP 32 |
164 | #define AU1200_LCD_MAX_CLK 96000000 /* fixme: this needs to go away ? */ |
165 | #define AU1200_LCD_NBR_PALETTE_ENTRIES 256 |
166 | |
167 | /* Default number of visible screen buffer to allocate */ |
168 | #define AU1200FB_NBR_VIDEO_BUFFERS 1 |
169 | |
170 | /* Default maximum number of fb devices to create */ |
171 | #define MAX_DEVICE_COUNT 4 |
172 | |
173 | /* Default window configuration entry to use (see windows[]) */ |
174 | #define DEFAULT_WINDOW_INDEX 2 |
175 | |
176 | /********************************************************************/ |
177 | |
178 | static struct fb_info *_au1200fb_infos[MAX_DEVICE_COUNT]; |
179 | static struct au1200_lcd *lcd = (struct au1200_lcd *) AU1200_LCD_ADDR; |
180 | static int device_count = MAX_DEVICE_COUNT; |
181 | static int window_index = DEFAULT_WINDOW_INDEX; /* default is zero */ |
182 | static int panel_index = 2; /* default is zero */ |
183 | static struct window_settings *win; |
184 | static struct panel_settings *panel; |
185 | static int noblanking = 1; |
186 | static int nohwcursor = 0; |
187 | |
188 | struct window_settings { |
189 | unsigned char name[64]; |
190 | uint32 mode_backcolor; |
191 | uint32 mode_colorkey; |
192 | uint32 mode_colorkeymsk; |
193 | struct { |
194 | int xres; |
195 | int yres; |
196 | int xpos; |
197 | int ypos; |
198 | uint32 mode_winctrl1; /* winctrl1[FRM,CCO,PO,PIPE] */ |
199 | uint32 mode_winenable; |
200 | } w[4]; |
201 | }; |
202 | |
203 | #if defined(__BIG_ENDIAN) |
204 | #define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_00 |
205 | #else |
206 | #define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_01 |
207 | #endif |
208 | |
209 | /* |
210 | * Default window configurations |
211 | */ |
212 | static struct window_settings windows[] = { |
213 | { /* Index 0 */ |
214 | "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx" , |
215 | /* mode_backcolor */ 0x006600ff, |
216 | /* mode_colorkey,msk*/ 0, 0, |
217 | { |
218 | { |
219 | /* xres, yres, xpos, ypos */ 0, 0, 0, 0, |
220 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | |
221 | LCD_WINCTRL1_PO_16BPP, |
222 | /* mode_winenable*/ LCD_WINENABLE_WEN0, |
223 | }, |
224 | { |
225 | /* xres, yres, xpos, ypos */ 100, 100, 100, 100, |
226 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | |
227 | LCD_WINCTRL1_PO_16BPP | |
228 | LCD_WINCTRL1_PIPE, |
229 | /* mode_winenable*/ LCD_WINENABLE_WEN1, |
230 | }, |
231 | { |
232 | /* xres, yres, xpos, ypos */ 0, 0, 0, 0, |
233 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | |
234 | LCD_WINCTRL1_PO_16BPP, |
235 | /* mode_winenable*/ 0, |
236 | }, |
237 | { |
238 | /* xres, yres, xpos, ypos */ 0, 0, 0, 0, |
239 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | |
240 | LCD_WINCTRL1_PO_16BPP | |
241 | LCD_WINCTRL1_PIPE, |
242 | /* mode_winenable*/ 0, |
243 | }, |
244 | }, |
245 | }, |
246 | |
247 | { /* Index 1 */ |
248 | "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx" , |
249 | /* mode_backcolor */ 0x006600ff, |
250 | /* mode_colorkey,msk*/ 0, 0, |
251 | { |
252 | { |
253 | /* xres, yres, xpos, ypos */ 320, 240, 5, 5, |
254 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_24BPP | |
255 | LCD_WINCTRL1_PO_00, |
256 | /* mode_winenable*/ LCD_WINENABLE_WEN0, |
257 | }, |
258 | { |
259 | /* xres, yres, xpos, ypos */ 0, 0, 0, 0, |
260 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 |
261 | | LCD_WINCTRL1_PO_16BPP, |
262 | /* mode_winenable*/ 0, |
263 | }, |
264 | { |
265 | /* xres, yres, xpos, ypos */ 100, 100, 0, 0, |
266 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | |
267 | LCD_WINCTRL1_PO_16BPP | |
268 | LCD_WINCTRL1_PIPE, |
269 | /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/, |
270 | }, |
271 | { |
272 | /* xres, yres, xpos, ypos */ 200, 25, 0, 0, |
273 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | |
274 | LCD_WINCTRL1_PO_16BPP | |
275 | LCD_WINCTRL1_PIPE, |
276 | /* mode_winenable*/ 0, |
277 | }, |
278 | }, |
279 | }, |
280 | { /* Index 2 */ |
281 | "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx" , |
282 | /* mode_backcolor */ 0x006600ff, |
283 | /* mode_colorkey,msk*/ 0, 0, |
284 | { |
285 | { |
286 | /* xres, yres, xpos, ypos */ 0, 0, 0, 0, |
287 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | |
288 | LCD_WINCTRL1_PO_16BPP, |
289 | /* mode_winenable*/ LCD_WINENABLE_WEN0, |
290 | }, |
291 | { |
292 | /* xres, yres, xpos, ypos */ 0, 0, 0, 0, |
293 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | |
294 | LCD_WINCTRL1_PO_16BPP, |
295 | /* mode_winenable*/ 0, |
296 | }, |
297 | { |
298 | /* xres, yres, xpos, ypos */ 0, 0, 0, 0, |
299 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_32BPP | |
300 | LCD_WINCTRL1_PO_00|LCD_WINCTRL1_PIPE, |
301 | /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/, |
302 | }, |
303 | { |
304 | /* xres, yres, xpos, ypos */ 0, 0, 0, 0, |
305 | /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | |
306 | LCD_WINCTRL1_PO_16BPP | |
307 | LCD_WINCTRL1_PIPE, |
308 | /* mode_winenable*/ 0, |
309 | }, |
310 | }, |
311 | }, |
312 | /* Need VGA 640 @ 24bpp, @ 32bpp */ |
313 | /* Need VGA 800 @ 24bpp, @ 32bpp */ |
314 | /* Need VGA 1024 @ 24bpp, @ 32bpp */ |
315 | }; |
316 | |
317 | /* |
318 | * Controller configurations for various panels. |
319 | */ |
320 | |
321 | struct panel_settings |
322 | { |
323 | const char name[25]; /* Full name <vendor>_<model> */ |
324 | |
325 | struct fb_monspecs monspecs; /* FB monitor specs */ |
326 | |
327 | /* panel timings */ |
328 | uint32 mode_screen; |
329 | uint32 mode_horztiming; |
330 | uint32 mode_verttiming; |
331 | uint32 mode_clkcontrol; |
332 | uint32 mode_pwmdiv; |
333 | uint32 mode_pwmhi; |
334 | uint32 mode_outmask; |
335 | uint32 mode_fifoctrl; |
336 | uint32 mode_backlight; |
337 | uint32 lcdclk; |
338 | #define Xres min_xres |
339 | #define Yres min_yres |
340 | u32 min_xres; /* Minimum horizontal resolution */ |
341 | u32 max_xres; /* Maximum horizontal resolution */ |
342 | u32 min_yres; /* Minimum vertical resolution */ |
343 | u32 max_yres; /* Maximum vertical resolution */ |
344 | }; |
345 | |
346 | /********************************************************************/ |
347 | /* fixme: Maybe a modedb for the CRT ? otherwise panels should be as-is */ |
348 | |
349 | /* List of panels known to work with the AU1200 LCD controller. |
350 | * To add a new panel, enter the same specifications as the |
351 | * Generic_TFT one, and MAKE SURE that it doesn't conflicts |
352 | * with the controller restrictions. Restrictions are: |
353 | * |
354 | * STN color panels: max_bpp <= 12 |
355 | * STN mono panels: max_bpp <= 4 |
356 | * TFT panels: max_bpp <= 16 |
357 | * max_xres <= 800 |
358 | * max_yres <= 600 |
359 | */ |
360 | static struct panel_settings known_lcd_panels[] = |
361 | { |
362 | [0] = { /* QVGA 320x240 H:33.3kHz V:110Hz */ |
363 | .name = "QVGA_320x240" , |
364 | .monspecs = { |
365 | .modedb = NULL, |
366 | .modedb_len = 0, |
367 | .hfmin = 30000, |
368 | .hfmax = 70000, |
369 | .vfmin = 60, |
370 | .vfmax = 60, |
371 | .dclkmin = 6000000, |
372 | .dclkmax = 28000000, |
373 | .input = FB_DISP_RGB, |
374 | }, |
375 | .mode_screen = LCD_SCREEN_SX_N(320) | |
376 | LCD_SCREEN_SY_N(240), |
377 | .mode_horztiming = 0x00c4623b, |
378 | .mode_verttiming = 0x00502814, |
379 | .mode_clkcontrol = 0x00020002, /* /4=24Mhz */ |
380 | .mode_pwmdiv = 0x00000000, |
381 | .mode_pwmhi = 0x00000000, |
382 | .mode_outmask = 0x00FFFFFF, |
383 | .mode_fifoctrl = 0x2f2f2f2f, |
384 | .mode_backlight = 0x00000000, |
385 | .lcdclk = 96, |
386 | 320, 320, |
387 | 240, 240, |
388 | }, |
389 | |
390 | [1] = { /* VGA 640x480 H:30.3kHz V:58Hz */ |
391 | .name = "VGA_640x480" , |
392 | .monspecs = { |
393 | .modedb = NULL, |
394 | .modedb_len = 0, |
395 | .hfmin = 30000, |
396 | .hfmax = 70000, |
397 | .vfmin = 60, |
398 | .vfmax = 60, |
399 | .dclkmin = 6000000, |
400 | .dclkmax = 28000000, |
401 | .input = FB_DISP_RGB, |
402 | }, |
403 | .mode_screen = 0x13f9df80, |
404 | .mode_horztiming = 0x003c5859, |
405 | .mode_verttiming = 0x00741201, |
406 | .mode_clkcontrol = 0x00020001, /* /4=24Mhz */ |
407 | .mode_pwmdiv = 0x00000000, |
408 | .mode_pwmhi = 0x00000000, |
409 | .mode_outmask = 0x00FFFFFF, |
410 | .mode_fifoctrl = 0x2f2f2f2f, |
411 | .mode_backlight = 0x00000000, |
412 | .lcdclk = 96, |
413 | 640, 480, |
414 | 640, 480, |
415 | }, |
416 | |
417 | [2] = { /* SVGA 800x600 H:46.1kHz V:69Hz */ |
418 | .name = "SVGA_800x600" , |
419 | .monspecs = { |
420 | .modedb = NULL, |
421 | .modedb_len = 0, |
422 | .hfmin = 30000, |
423 | .hfmax = 70000, |
424 | .vfmin = 60, |
425 | .vfmax = 60, |
426 | .dclkmin = 6000000, |
427 | .dclkmax = 28000000, |
428 | .input = FB_DISP_RGB, |
429 | }, |
430 | .mode_screen = 0x18fa5780, |
431 | .mode_horztiming = 0x00dc7e77, |
432 | .mode_verttiming = 0x00584805, |
433 | .mode_clkcontrol = 0x00020000, /* /2=48Mhz */ |
434 | .mode_pwmdiv = 0x00000000, |
435 | .mode_pwmhi = 0x00000000, |
436 | .mode_outmask = 0x00FFFFFF, |
437 | .mode_fifoctrl = 0x2f2f2f2f, |
438 | .mode_backlight = 0x00000000, |
439 | .lcdclk = 96, |
440 | 800, 800, |
441 | 600, 600, |
442 | }, |
443 | |
444 | [3] = { /* XVGA 1024x768 H:56.2kHz V:70Hz */ |
445 | .name = "XVGA_1024x768" , |
446 | .monspecs = { |
447 | .modedb = NULL, |
448 | .modedb_len = 0, |
449 | .hfmin = 30000, |
450 | .hfmax = 70000, |
451 | .vfmin = 60, |
452 | .vfmax = 60, |
453 | .dclkmin = 6000000, |
454 | .dclkmax = 28000000, |
455 | .input = FB_DISP_RGB, |
456 | }, |
457 | .mode_screen = 0x1ffaff80, |
458 | .mode_horztiming = 0x007d0e57, |
459 | .mode_verttiming = 0x00740a01, |
460 | .mode_clkcontrol = 0x000A0000, /* /1 */ |
461 | .mode_pwmdiv = 0x00000000, |
462 | .mode_pwmhi = 0x00000000, |
463 | .mode_outmask = 0x00FFFFFF, |
464 | .mode_fifoctrl = 0x2f2f2f2f, |
465 | .mode_backlight = 0x00000000, |
466 | .lcdclk = 72, |
467 | 1024, 1024, |
468 | 768, 768, |
469 | }, |
470 | |
471 | [4] = { /* XVGA XVGA 1280x1024 H:68.5kHz V:65Hz */ |
472 | .name = "XVGA_1280x1024" , |
473 | .monspecs = { |
474 | .modedb = NULL, |
475 | .modedb_len = 0, |
476 | .hfmin = 30000, |
477 | .hfmax = 70000, |
478 | .vfmin = 60, |
479 | .vfmax = 60, |
480 | .dclkmin = 6000000, |
481 | .dclkmax = 28000000, |
482 | .input = FB_DISP_RGB, |
483 | }, |
484 | .mode_screen = 0x27fbff80, |
485 | .mode_horztiming = 0x00cdb2c7, |
486 | .mode_verttiming = 0x00600002, |
487 | .mode_clkcontrol = 0x000A0000, /* /1 */ |
488 | .mode_pwmdiv = 0x00000000, |
489 | .mode_pwmhi = 0x00000000, |
490 | .mode_outmask = 0x00FFFFFF, |
491 | .mode_fifoctrl = 0x2f2f2f2f, |
492 | .mode_backlight = 0x00000000, |
493 | .lcdclk = 120, |
494 | 1280, 1280, |
495 | 1024, 1024, |
496 | }, |
497 | |
498 | [5] = { /* Samsung 1024x768 TFT */ |
499 | .name = "Samsung_1024x768_TFT" , |
500 | .monspecs = { |
501 | .modedb = NULL, |
502 | .modedb_len = 0, |
503 | .hfmin = 30000, |
504 | .hfmax = 70000, |
505 | .vfmin = 60, |
506 | .vfmax = 60, |
507 | .dclkmin = 6000000, |
508 | .dclkmax = 28000000, |
509 | .input = FB_DISP_RGB, |
510 | }, |
511 | .mode_screen = 0x1ffaff80, |
512 | .mode_horztiming = 0x018cc677, |
513 | .mode_verttiming = 0x00241217, |
514 | .mode_clkcontrol = 0x00000000, /* SCB 0x1 /4=24Mhz */ |
515 | .mode_pwmdiv = 0x8000063f, /* SCB 0x0 */ |
516 | .mode_pwmhi = 0x03400000, /* SCB 0x0 */ |
517 | .mode_outmask = 0x00FFFFFF, |
518 | .mode_fifoctrl = 0x2f2f2f2f, |
519 | .mode_backlight = 0x00000000, |
520 | .lcdclk = 96, |
521 | 1024, 1024, |
522 | 768, 768, |
523 | }, |
524 | |
525 | [6] = { /* Toshiba 640x480 TFT */ |
526 | .name = "Toshiba_640x480_TFT" , |
527 | .monspecs = { |
528 | .modedb = NULL, |
529 | .modedb_len = 0, |
530 | .hfmin = 30000, |
531 | .hfmax = 70000, |
532 | .vfmin = 60, |
533 | .vfmax = 60, |
534 | .dclkmin = 6000000, |
535 | .dclkmax = 28000000, |
536 | .input = FB_DISP_RGB, |
537 | }, |
538 | .mode_screen = LCD_SCREEN_SX_N(640) | |
539 | LCD_SCREEN_SY_N(480), |
540 | .mode_horztiming = LCD_HORZTIMING_HPW_N(96) | |
541 | LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(51), |
542 | .mode_verttiming = LCD_VERTTIMING_VPW_N(2) | |
543 | LCD_VERTTIMING_VND1_N(11) | LCD_VERTTIMING_VND2_N(32), |
544 | .mode_clkcontrol = 0x00000000, /* /4=24Mhz */ |
545 | .mode_pwmdiv = 0x8000063f, |
546 | .mode_pwmhi = 0x03400000, |
547 | .mode_outmask = 0x00fcfcfc, |
548 | .mode_fifoctrl = 0x2f2f2f2f, |
549 | .mode_backlight = 0x00000000, |
550 | .lcdclk = 96, |
551 | 640, 480, |
552 | 640, 480, |
553 | }, |
554 | |
555 | [7] = { /* Sharp 320x240 TFT */ |
556 | .name = "Sharp_320x240_TFT" , |
557 | .monspecs = { |
558 | .modedb = NULL, |
559 | .modedb_len = 0, |
560 | .hfmin = 12500, |
561 | .hfmax = 20000, |
562 | .vfmin = 38, |
563 | .vfmax = 81, |
564 | .dclkmin = 4500000, |
565 | .dclkmax = 6800000, |
566 | .input = FB_DISP_RGB, |
567 | }, |
568 | .mode_screen = LCD_SCREEN_SX_N(320) | |
569 | LCD_SCREEN_SY_N(240), |
570 | .mode_horztiming = LCD_HORZTIMING_HPW_N(60) | |
571 | LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(2), |
572 | .mode_verttiming = LCD_VERTTIMING_VPW_N(2) | |
573 | LCD_VERTTIMING_VND1_N(2) | LCD_VERTTIMING_VND2_N(5), |
574 | .mode_clkcontrol = LCD_CLKCONTROL_PCD_N(7), /*16=6Mhz*/ |
575 | .mode_pwmdiv = 0x8000063f, |
576 | .mode_pwmhi = 0x03400000, |
577 | .mode_outmask = 0x00fcfcfc, |
578 | .mode_fifoctrl = 0x2f2f2f2f, |
579 | .mode_backlight = 0x00000000, |
580 | .lcdclk = 96, /* 96MHz AUXPLL */ |
581 | 320, 320, |
582 | 240, 240, |
583 | }, |
584 | |
585 | [8] = { /* Toppoly TD070WGCB2 7" 856x480 TFT */ |
586 | .name = "Toppoly_TD070WGCB2" , |
587 | .monspecs = { |
588 | .modedb = NULL, |
589 | .modedb_len = 0, |
590 | .hfmin = 30000, |
591 | .hfmax = 70000, |
592 | .vfmin = 60, |
593 | .vfmax = 60, |
594 | .dclkmin = 6000000, |
595 | .dclkmax = 28000000, |
596 | .input = FB_DISP_RGB, |
597 | }, |
598 | .mode_screen = LCD_SCREEN_SX_N(856) | |
599 | LCD_SCREEN_SY_N(480), |
600 | .mode_horztiming = LCD_HORZTIMING_HND2_N(43) | |
601 | LCD_HORZTIMING_HND1_N(43) | LCD_HORZTIMING_HPW_N(114), |
602 | .mode_verttiming = LCD_VERTTIMING_VND2_N(20) | |
603 | LCD_VERTTIMING_VND1_N(21) | LCD_VERTTIMING_VPW_N(4), |
604 | .mode_clkcontrol = 0x00020001, /* /4=24Mhz */ |
605 | .mode_pwmdiv = 0x8000063f, |
606 | .mode_pwmhi = 0x03400000, |
607 | .mode_outmask = 0x00fcfcfc, |
608 | .mode_fifoctrl = 0x2f2f2f2f, |
609 | .mode_backlight = 0x00000000, |
610 | .lcdclk = 96, |
611 | 856, 856, |
612 | 480, 480, |
613 | }, |
614 | [9] = { |
615 | .name = "DB1300_800x480" , |
616 | .monspecs = { |
617 | .modedb = NULL, |
618 | .modedb_len = 0, |
619 | .hfmin = 30000, |
620 | .hfmax = 70000, |
621 | .vfmin = 60, |
622 | .vfmax = 60, |
623 | .dclkmin = 6000000, |
624 | .dclkmax = 28000000, |
625 | .input = FB_DISP_RGB, |
626 | }, |
627 | .mode_screen = LCD_SCREEN_SX_N(800) | |
628 | LCD_SCREEN_SY_N(480), |
629 | .mode_horztiming = LCD_HORZTIMING_HPW_N(5) | |
630 | LCD_HORZTIMING_HND1_N(16) | |
631 | LCD_HORZTIMING_HND2_N(8), |
632 | .mode_verttiming = LCD_VERTTIMING_VPW_N(4) | |
633 | LCD_VERTTIMING_VND1_N(8) | |
634 | LCD_VERTTIMING_VND2_N(5), |
635 | .mode_clkcontrol = LCD_CLKCONTROL_PCD_N(1) | |
636 | LCD_CLKCONTROL_IV | |
637 | LCD_CLKCONTROL_IH, |
638 | .mode_pwmdiv = 0x00000000, |
639 | .mode_pwmhi = 0x00000000, |
640 | .mode_outmask = 0x00FFFFFF, |
641 | .mode_fifoctrl = 0x2f2f2f2f, |
642 | .mode_backlight = 0x00000000, |
643 | .lcdclk = 96, |
644 | 800, 800, |
645 | 480, 480, |
646 | }, |
647 | }; |
648 | |
649 | #define NUM_PANELS (ARRAY_SIZE(known_lcd_panels)) |
650 | |
651 | /********************************************************************/ |
652 | |
653 | static int winbpp (unsigned int winctrl1) |
654 | { |
655 | int bits = 0; |
656 | |
657 | /* how many bits are needed for each pixel format */ |
658 | switch (winctrl1 & LCD_WINCTRL1_FRM) { |
659 | case LCD_WINCTRL1_FRM_1BPP: |
660 | bits = 1; |
661 | break; |
662 | case LCD_WINCTRL1_FRM_2BPP: |
663 | bits = 2; |
664 | break; |
665 | case LCD_WINCTRL1_FRM_4BPP: |
666 | bits = 4; |
667 | break; |
668 | case LCD_WINCTRL1_FRM_8BPP: |
669 | bits = 8; |
670 | break; |
671 | case LCD_WINCTRL1_FRM_12BPP: |
672 | case LCD_WINCTRL1_FRM_16BPP655: |
673 | case LCD_WINCTRL1_FRM_16BPP565: |
674 | case LCD_WINCTRL1_FRM_16BPP556: |
675 | case LCD_WINCTRL1_FRM_16BPPI1555: |
676 | case LCD_WINCTRL1_FRM_16BPPI5551: |
677 | case LCD_WINCTRL1_FRM_16BPPA1555: |
678 | case LCD_WINCTRL1_FRM_16BPPA5551: |
679 | bits = 16; |
680 | break; |
681 | case LCD_WINCTRL1_FRM_24BPP: |
682 | case LCD_WINCTRL1_FRM_32BPP: |
683 | bits = 32; |
684 | break; |
685 | } |
686 | |
687 | return bits; |
688 | } |
689 | |
690 | static int fbinfo2index (struct fb_info *fb_info) |
691 | { |
692 | int i; |
693 | |
694 | for (i = 0; i < device_count; ++i) { |
695 | if (fb_info == _au1200fb_infos[i]) |
696 | return i; |
697 | } |
698 | printk("au1200fb: ERROR: fbinfo2index failed!\n" ); |
699 | return -1; |
700 | } |
701 | |
702 | static int au1200_setlocation (struct au1200fb_device *fbdev, int plane, |
703 | int xpos, int ypos) |
704 | { |
705 | uint32 winctrl0, winctrl1, winenable, fb_offset = 0; |
706 | int xsz, ysz; |
707 | |
708 | /* FIX!!! NOT CHECKING FOR COMPLETE OFFSCREEN YET */ |
709 | |
710 | winctrl0 = lcd->window[plane].winctrl0; |
711 | winctrl1 = lcd->window[plane].winctrl1; |
712 | winctrl0 &= (LCD_WINCTRL0_A | LCD_WINCTRL0_AEN); |
713 | winctrl1 &= ~(LCD_WINCTRL1_SZX | LCD_WINCTRL1_SZY); |
714 | |
715 | /* Check for off-screen adjustments */ |
716 | xsz = win->w[plane].xres; |
717 | ysz = win->w[plane].yres; |
718 | if ((xpos + win->w[plane].xres) > panel->Xres) { |
719 | /* Off-screen to the right */ |
720 | xsz = panel->Xres - xpos; /* off by 1 ??? */ |
721 | /*printk("off screen right\n");*/ |
722 | } |
723 | |
724 | if ((ypos + win->w[plane].yres) > panel->Yres) { |
725 | /* Off-screen to the bottom */ |
726 | ysz = panel->Yres - ypos; /* off by 1 ??? */ |
727 | /*printk("off screen bottom\n");*/ |
728 | } |
729 | |
730 | if (xpos < 0) { |
731 | /* Off-screen to the left */ |
732 | xsz = win->w[plane].xres + xpos; |
733 | fb_offset += (((0 - xpos) * winbpp(winctrl1: lcd->window[plane].winctrl1))/8); |
734 | xpos = 0; |
735 | /*printk("off screen left\n");*/ |
736 | } |
737 | |
738 | if (ypos < 0) { |
739 | /* Off-screen to the top */ |
740 | ysz = win->w[plane].yres + ypos; |
741 | /* fixme: fb_offset += ((0-ypos)*fb_pars[plane].line_length); */ |
742 | ypos = 0; |
743 | /*printk("off screen top\n");*/ |
744 | } |
745 | |
746 | /* record settings */ |
747 | win->w[plane].xpos = xpos; |
748 | win->w[plane].ypos = ypos; |
749 | |
750 | xsz -= 1; |
751 | ysz -= 1; |
752 | winctrl0 |= (xpos << 21); |
753 | winctrl0 |= (ypos << 10); |
754 | winctrl1 |= (xsz << 11); |
755 | winctrl1 |= (ysz << 0); |
756 | |
757 | /* Disable the window while making changes, then restore WINEN */ |
758 | winenable = lcd->winenable & (1 << plane); |
759 | wmb(); /* drain writebuffer */ |
760 | lcd->winenable &= ~(1 << plane); |
761 | lcd->window[plane].winctrl0 = winctrl0; |
762 | lcd->window[plane].winctrl1 = winctrl1; |
763 | lcd->window[plane].winbuf0 = |
764 | lcd->window[plane].winbuf1 = fbdev->fb_phys; |
765 | lcd->window[plane].winbufctrl = 0; /* select winbuf0 */ |
766 | lcd->winenable |= winenable; |
767 | wmb(); /* drain writebuffer */ |
768 | |
769 | return 0; |
770 | } |
771 | |
772 | static void au1200_setpanel(struct panel_settings *newpanel, |
773 | struct au1200fb_platdata *pd) |
774 | { |
775 | /* |
776 | * Perform global setup/init of LCD controller |
777 | */ |
778 | uint32 winenable; |
779 | |
780 | /* Make sure all windows disabled */ |
781 | winenable = lcd->winenable; |
782 | lcd->winenable = 0; |
783 | wmb(); /* drain writebuffer */ |
784 | /* |
785 | * Ensure everything is disabled before reconfiguring |
786 | */ |
787 | if (lcd->screen & LCD_SCREEN_SEN) { |
788 | /* Wait for vertical sync period */ |
789 | lcd->intstatus = LCD_INT_SS; |
790 | while ((lcd->intstatus & LCD_INT_SS) == 0) |
791 | ; |
792 | |
793 | lcd->screen &= ~LCD_SCREEN_SEN; /*disable the controller*/ |
794 | |
795 | do { |
796 | lcd->intstatus = lcd->intstatus; /*clear interrupts*/ |
797 | wmb(); /* drain writebuffer */ |
798 | /*wait for controller to shut down*/ |
799 | } while ((lcd->intstatus & LCD_INT_SD) == 0); |
800 | |
801 | /* Call shutdown of current panel (if up) */ |
802 | /* this must occur last, because if an external clock is driving |
803 | the controller, the clock cannot be turned off before first |
804 | shutting down the controller. |
805 | */ |
806 | if (pd->panel_shutdown) |
807 | pd->panel_shutdown(); |
808 | } |
809 | |
810 | /* Newpanel == NULL indicates a shutdown operation only */ |
811 | if (newpanel == NULL) |
812 | return; |
813 | |
814 | panel = newpanel; |
815 | |
816 | printk("Panel(%s), %dx%d\n" , panel->name, panel->Xres, panel->Yres); |
817 | |
818 | /* |
819 | * Setup clocking if internal LCD clock source (assumes sys_auxpll valid) |
820 | */ |
821 | if (!(panel->mode_clkcontrol & LCD_CLKCONTROL_EXT)) |
822 | { |
823 | struct clk *c = clk_get(NULL, id: "lcd_intclk" ); |
824 | long r, pc = panel->lcdclk * 1000000; |
825 | |
826 | if (!IS_ERR(ptr: c)) { |
827 | r = clk_round_rate(clk: c, rate: pc); |
828 | if ((pc - r) < (pc / 10)) { /* 10% slack */ |
829 | clk_set_rate(clk: c, rate: r); |
830 | clk_prepare_enable(clk: c); |
831 | } |
832 | clk_put(clk: c); |
833 | } |
834 | } |
835 | |
836 | /* |
837 | * Configure panel timings |
838 | */ |
839 | lcd->screen = panel->mode_screen; |
840 | lcd->horztiming = panel->mode_horztiming; |
841 | lcd->verttiming = panel->mode_verttiming; |
842 | lcd->clkcontrol = panel->mode_clkcontrol; |
843 | lcd->pwmdiv = panel->mode_pwmdiv; |
844 | lcd->pwmhi = panel->mode_pwmhi; |
845 | lcd->outmask = panel->mode_outmask; |
846 | lcd->fifoctrl = panel->mode_fifoctrl; |
847 | wmb(); /* drain writebuffer */ |
848 | |
849 | /* fixme: Check window settings to make sure still valid |
850 | * for new geometry */ |
851 | #if 0 |
852 | au1200_setlocation(fbdev, 0, win->w[0].xpos, win->w[0].ypos); |
853 | au1200_setlocation(fbdev, 1, win->w[1].xpos, win->w[1].ypos); |
854 | au1200_setlocation(fbdev, 2, win->w[2].xpos, win->w[2].ypos); |
855 | au1200_setlocation(fbdev, 3, win->w[3].xpos, win->w[3].ypos); |
856 | #endif |
857 | lcd->winenable = winenable; |
858 | |
859 | /* |
860 | * Re-enable screen now that it is configured |
861 | */ |
862 | lcd->screen |= LCD_SCREEN_SEN; |
863 | wmb(); /* drain writebuffer */ |
864 | |
865 | /* Call init of panel */ |
866 | if (pd->panel_init) |
867 | pd->panel_init(); |
868 | |
869 | /* FIX!!!! not appropriate on panel change!!! Global setup/init */ |
870 | lcd->intenable = 0; |
871 | lcd->intstatus = ~0; |
872 | lcd->backcolor = win->mode_backcolor; |
873 | |
874 | /* Setup Color Key - FIX!!! */ |
875 | lcd->colorkey = win->mode_colorkey; |
876 | lcd->colorkeymsk = win->mode_colorkeymsk; |
877 | |
878 | /* Setup HWCursor - FIX!!! Need to support this eventually */ |
879 | lcd->hwc.cursorctrl = 0; |
880 | lcd->hwc.cursorpos = 0; |
881 | lcd->hwc.cursorcolor0 = 0; |
882 | lcd->hwc.cursorcolor1 = 0; |
883 | lcd->hwc.cursorcolor2 = 0; |
884 | lcd->hwc.cursorcolor3 = 0; |
885 | |
886 | |
887 | #if 0 |
888 | #define D(X) printk("%25s: %08X\n", #X, X) |
889 | D(lcd->screen); |
890 | D(lcd->horztiming); |
891 | D(lcd->verttiming); |
892 | D(lcd->clkcontrol); |
893 | D(lcd->pwmdiv); |
894 | D(lcd->pwmhi); |
895 | D(lcd->outmask); |
896 | D(lcd->fifoctrl); |
897 | D(lcd->window[0].winctrl0); |
898 | D(lcd->window[0].winctrl1); |
899 | D(lcd->window[0].winctrl2); |
900 | D(lcd->window[0].winbuf0); |
901 | D(lcd->window[0].winbuf1); |
902 | D(lcd->window[0].winbufctrl); |
903 | D(lcd->window[1].winctrl0); |
904 | D(lcd->window[1].winctrl1); |
905 | D(lcd->window[1].winctrl2); |
906 | D(lcd->window[1].winbuf0); |
907 | D(lcd->window[1].winbuf1); |
908 | D(lcd->window[1].winbufctrl); |
909 | D(lcd->window[2].winctrl0); |
910 | D(lcd->window[2].winctrl1); |
911 | D(lcd->window[2].winctrl2); |
912 | D(lcd->window[2].winbuf0); |
913 | D(lcd->window[2].winbuf1); |
914 | D(lcd->window[2].winbufctrl); |
915 | D(lcd->window[3].winctrl0); |
916 | D(lcd->window[3].winctrl1); |
917 | D(lcd->window[3].winctrl2); |
918 | D(lcd->window[3].winbuf0); |
919 | D(lcd->window[3].winbuf1); |
920 | D(lcd->window[3].winbufctrl); |
921 | D(lcd->winenable); |
922 | D(lcd->intenable); |
923 | D(lcd->intstatus); |
924 | D(lcd->backcolor); |
925 | D(lcd->winenable); |
926 | D(lcd->colorkey); |
927 | D(lcd->colorkeymsk); |
928 | D(lcd->hwc.cursorctrl); |
929 | D(lcd->hwc.cursorpos); |
930 | D(lcd->hwc.cursorcolor0); |
931 | D(lcd->hwc.cursorcolor1); |
932 | D(lcd->hwc.cursorcolor2); |
933 | D(lcd->hwc.cursorcolor3); |
934 | #endif |
935 | } |
936 | |
937 | static void au1200_setmode(struct au1200fb_device *fbdev) |
938 | { |
939 | int plane = fbdev->plane; |
940 | /* Window/plane setup */ |
941 | lcd->window[plane].winctrl1 = ( 0 |
942 | | LCD_WINCTRL1_PRI_N(plane) |
943 | | win->w[plane].mode_winctrl1 /* FRM,CCO,PO,PIPE */ |
944 | ) ; |
945 | |
946 | au1200_setlocation(fbdev, plane, xpos: win->w[plane].xpos, ypos: win->w[plane].ypos); |
947 | |
948 | lcd->window[plane].winctrl2 = ( 0 |
949 | | LCD_WINCTRL2_CKMODE_00 |
950 | | LCD_WINCTRL2_DBM |
951 | | LCD_WINCTRL2_BX_N(fbdev->fb_info->fix.line_length) |
952 | | LCD_WINCTRL2_SCX_1 |
953 | | LCD_WINCTRL2_SCY_1 |
954 | ) ; |
955 | lcd->winenable |= win->w[plane].mode_winenable; |
956 | wmb(); /* drain writebuffer */ |
957 | } |
958 | |
959 | |
960 | /* Inline helpers */ |
961 | |
962 | /*#define panel_is_dual(panel) ((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/ |
963 | /*#define panel_is_active(panel)((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/ |
964 | |
965 | #define panel_is_color(panel) ((panel->mode_screen & LCD_SCREEN_PT) <= LCD_SCREEN_PT_CDSTN) |
966 | |
967 | /* Bitfields format supported by the controller. */ |
968 | static struct fb_bitfield rgb_bitfields[][4] = { |
969 | /* Red, Green, Blue, Transp */ |
970 | [LCD_WINCTRL1_FRM_16BPP655 >> 25] = |
971 | { { 10, 6, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } }, |
972 | |
973 | [LCD_WINCTRL1_FRM_16BPP565 >> 25] = |
974 | { { .offset: 11, .length: 5, .msb_right: 0 }, { 5, 6, 0 }, { 0, 5, 0 }, { 0, 0, 0 } }, |
975 | |
976 | [LCD_WINCTRL1_FRM_16BPP556 >> 25] = |
977 | { { .offset: 11, .length: 5, .msb_right: 0 }, { 6, 5, 0 }, { 0, 6, 0 }, { 0, 0, 0 } }, |
978 | |
979 | [LCD_WINCTRL1_FRM_16BPPI1555 >> 25] = |
980 | { { .offset: 10, .length: 5, .msb_right: 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } }, |
981 | |
982 | [LCD_WINCTRL1_FRM_16BPPI5551 >> 25] = |
983 | { { .offset: 11, .length: 5, .msb_right: 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 0, 0 } }, |
984 | |
985 | [LCD_WINCTRL1_FRM_16BPPA1555 >> 25] = |
986 | { { .offset: 10, .length: 5, .msb_right: 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 15, 1, 0 } }, |
987 | |
988 | [LCD_WINCTRL1_FRM_16BPPA5551 >> 25] = |
989 | { { .offset: 11, .length: 5, .msb_right: 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 1, 0 } }, |
990 | |
991 | [LCD_WINCTRL1_FRM_24BPP >> 25] = |
992 | { { .offset: 16, .length: 8, .msb_right: 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 0, 0, 0 } }, |
993 | |
994 | [LCD_WINCTRL1_FRM_32BPP >> 25] = |
995 | { { .offset: 16, .length: 8, .msb_right: 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 24, 0, 0 } }, |
996 | }; |
997 | |
998 | /*-------------------------------------------------------------------------*/ |
999 | |
1000 | /* Helpers */ |
1001 | |
1002 | static void au1200fb_update_fbinfo(struct fb_info *fbi) |
1003 | { |
1004 | /* FIX!!!! This also needs to take the window pixel format into account!!! */ |
1005 | |
1006 | /* Update var-dependent FB info */ |
1007 | if (panel_is_color(panel)) { |
1008 | if (fbi->var.bits_per_pixel <= 8) { |
1009 | /* palettized */ |
1010 | fbi->fix.visual = FB_VISUAL_PSEUDOCOLOR; |
1011 | fbi->fix.line_length = fbi->var.xres_virtual / |
1012 | (8/fbi->var.bits_per_pixel); |
1013 | } else { |
1014 | /* non-palettized */ |
1015 | fbi->fix.visual = FB_VISUAL_TRUECOLOR; |
1016 | fbi->fix.line_length = fbi->var.xres_virtual * (fbi->var.bits_per_pixel / 8); |
1017 | } |
1018 | } else { |
1019 | /* mono FIX!!! mono 8 and 4 bits */ |
1020 | fbi->fix.visual = FB_VISUAL_MONO10; |
1021 | fbi->fix.line_length = fbi->var.xres_virtual / 8; |
1022 | } |
1023 | |
1024 | fbi->screen_size = fbi->fix.line_length * fbi->var.yres_virtual; |
1025 | print_dbg("line length: %d\n" , fbi->fix.line_length); |
1026 | print_dbg("bits_per_pixel: %d\n" , fbi->var.bits_per_pixel); |
1027 | } |
1028 | |
1029 | /*-------------------------------------------------------------------------*/ |
1030 | |
1031 | /* AU1200 framebuffer driver */ |
1032 | |
1033 | /* fb_check_var |
1034 | * Validate var settings with hardware restrictions and modify it if necessary |
1035 | */ |
1036 | static int au1200fb_fb_check_var(struct fb_var_screeninfo *var, |
1037 | struct fb_info *fbi) |
1038 | { |
1039 | struct au1200fb_device *fbdev = fbi->par; |
1040 | u32 pixclock; |
1041 | int screen_size, plane; |
1042 | |
1043 | if (!var->pixclock) |
1044 | return -EINVAL; |
1045 | |
1046 | plane = fbdev->plane; |
1047 | |
1048 | /* Make sure that the mode respect all LCD controller and |
1049 | * panel restrictions. */ |
1050 | var->xres = win->w[plane].xres; |
1051 | var->yres = win->w[plane].yres; |
1052 | |
1053 | /* No need for virtual resolution support */ |
1054 | var->xres_virtual = var->xres; |
1055 | var->yres_virtual = var->yres; |
1056 | |
1057 | var->bits_per_pixel = winbpp(winctrl1: win->w[plane].mode_winctrl1); |
1058 | |
1059 | screen_size = var->xres_virtual * var->yres_virtual; |
1060 | if (var->bits_per_pixel > 8) screen_size *= (var->bits_per_pixel / 8); |
1061 | else screen_size /= (8/var->bits_per_pixel); |
1062 | |
1063 | if (fbdev->fb_len < screen_size) |
1064 | return -EINVAL; /* Virtual screen is to big, abort */ |
1065 | |
1066 | /* FIX!!!! what are the implicaitons of ignoring this for windows ??? */ |
1067 | /* The max LCD clock is fixed to 48MHz (value of AUX_CLK). The pixel |
1068 | * clock can only be obtain by dividing this value by an even integer. |
1069 | * Fallback to a slower pixel clock if necessary. */ |
1070 | pixclock = max((u32)(PICOS2KHZ(var->pixclock) * 1000), fbi->monspecs.dclkmin); |
1071 | pixclock = min3(pixclock, fbi->monspecs.dclkmax, (u32)AU1200_LCD_MAX_CLK/2); |
1072 | |
1073 | if (AU1200_LCD_MAX_CLK % pixclock) { |
1074 | int diff = AU1200_LCD_MAX_CLK % pixclock; |
1075 | pixclock -= diff; |
1076 | } |
1077 | |
1078 | var->pixclock = KHZ2PICOS(pixclock/1000); |
1079 | #if 0 |
1080 | if (!panel_is_active(panel)) { |
1081 | int pcd = AU1200_LCD_MAX_CLK / (pixclock * 2) - 1; |
1082 | |
1083 | if (!panel_is_color(panel) |
1084 | && (panel->control_base & LCD_CONTROL_MPI) && (pcd < 3)) { |
1085 | /* STN 8bit mono panel support is up to 6MHz pixclock */ |
1086 | var->pixclock = KHZ2PICOS(6000); |
1087 | } else if (!pcd) { |
1088 | /* Other STN panel support is up to 12MHz */ |
1089 | var->pixclock = KHZ2PICOS(12000); |
1090 | } |
1091 | } |
1092 | #endif |
1093 | /* Set bitfield accordingly */ |
1094 | switch (var->bits_per_pixel) { |
1095 | case 16: |
1096 | { |
1097 | /* 16bpp True color. |
1098 | * These must be set to MATCH WINCTRL[FORM] */ |
1099 | int idx; |
1100 | idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25; |
1101 | var->red = rgb_bitfields[idx][0]; |
1102 | var->green = rgb_bitfields[idx][1]; |
1103 | var->blue = rgb_bitfields[idx][2]; |
1104 | var->transp = rgb_bitfields[idx][3]; |
1105 | break; |
1106 | } |
1107 | |
1108 | case 32: |
1109 | { |
1110 | /* 32bpp True color. |
1111 | * These must be set to MATCH WINCTRL[FORM] */ |
1112 | int idx; |
1113 | idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25; |
1114 | var->red = rgb_bitfields[idx][0]; |
1115 | var->green = rgb_bitfields[idx][1]; |
1116 | var->blue = rgb_bitfields[idx][2]; |
1117 | var->transp = rgb_bitfields[idx][3]; |
1118 | break; |
1119 | } |
1120 | default: |
1121 | print_dbg("Unsupported depth %dbpp" , var->bits_per_pixel); |
1122 | return -EINVAL; |
1123 | } |
1124 | |
1125 | return 0; |
1126 | } |
1127 | |
1128 | /* fb_set_par |
1129 | * Set hardware with var settings. This will enable the controller with a |
1130 | * specific mode, normally validated with the fb_check_var method |
1131 | */ |
1132 | static int au1200fb_fb_set_par(struct fb_info *fbi) |
1133 | { |
1134 | struct au1200fb_device *fbdev = fbi->par; |
1135 | |
1136 | au1200fb_update_fbinfo(fbi); |
1137 | au1200_setmode(fbdev); |
1138 | |
1139 | return 0; |
1140 | } |
1141 | |
1142 | /* fb_setcolreg |
1143 | * Set color in LCD palette. |
1144 | */ |
1145 | static int au1200fb_fb_setcolreg(unsigned regno, unsigned red, unsigned green, |
1146 | unsigned blue, unsigned transp, struct fb_info *fbi) |
1147 | { |
1148 | volatile u32 *palette = lcd->palette; |
1149 | u32 value; |
1150 | |
1151 | if (regno > (AU1200_LCD_NBR_PALETTE_ENTRIES - 1)) |
1152 | return -EINVAL; |
1153 | |
1154 | if (fbi->var.grayscale) { |
1155 | /* Convert color to grayscale */ |
1156 | red = green = blue = |
1157 | (19595 * red + 38470 * green + 7471 * blue) >> 16; |
1158 | } |
1159 | |
1160 | if (fbi->fix.visual == FB_VISUAL_TRUECOLOR) { |
1161 | /* Place color in the pseudopalette */ |
1162 | if (regno > 16) |
1163 | return -EINVAL; |
1164 | |
1165 | palette = (u32*) fbi->pseudo_palette; |
1166 | |
1167 | red >>= (16 - fbi->var.red.length); |
1168 | green >>= (16 - fbi->var.green.length); |
1169 | blue >>= (16 - fbi->var.blue.length); |
1170 | |
1171 | value = (red << fbi->var.red.offset) | |
1172 | (green << fbi->var.green.offset)| |
1173 | (blue << fbi->var.blue.offset); |
1174 | value &= 0xFFFF; |
1175 | |
1176 | } else if (1 /*FIX!!! panel_is_active(fbdev->panel)*/) { |
1177 | /* COLOR TFT PALLETTIZED (use RGB 565) */ |
1178 | value = (red & 0xF800)|((green >> 5) & |
1179 | 0x07E0)|((blue >> 11) & 0x001F); |
1180 | value &= 0xFFFF; |
1181 | |
1182 | } else if (0 /*panel_is_color(fbdev->panel)*/) { |
1183 | /* COLOR STN MODE */ |
1184 | value = 0x1234; |
1185 | value &= 0xFFF; |
1186 | } else { |
1187 | /* MONOCHROME MODE */ |
1188 | value = (green >> 12) & 0x000F; |
1189 | value &= 0xF; |
1190 | } |
1191 | |
1192 | palette[regno] = value; |
1193 | |
1194 | return 0; |
1195 | } |
1196 | |
1197 | /* fb_blank |
1198 | * Blank the screen. Depending on the mode, the screen will be |
1199 | * activated with the backlight color, or desactivated |
1200 | */ |
1201 | static int au1200fb_fb_blank(int blank_mode, struct fb_info *fbi) |
1202 | { |
1203 | struct au1200fb_device *fbdev = fbi->par; |
1204 | |
1205 | /* Short-circuit screen blanking */ |
1206 | if (noblanking) |
1207 | return 0; |
1208 | |
1209 | switch (blank_mode) { |
1210 | |
1211 | case FB_BLANK_UNBLANK: |
1212 | case FB_BLANK_NORMAL: |
1213 | /* printk("turn on panel\n"); */ |
1214 | au1200_setpanel(newpanel: panel, pd: fbdev->pd); |
1215 | break; |
1216 | case FB_BLANK_VSYNC_SUSPEND: |
1217 | case FB_BLANK_HSYNC_SUSPEND: |
1218 | case FB_BLANK_POWERDOWN: |
1219 | /* printk("turn off panel\n"); */ |
1220 | au1200_setpanel(NULL, pd: fbdev->pd); |
1221 | break; |
1222 | default: |
1223 | break; |
1224 | |
1225 | } |
1226 | |
1227 | /* FB_BLANK_NORMAL is a soft blank */ |
1228 | return (blank_mode == FB_BLANK_NORMAL) ? -EINVAL : 0; |
1229 | } |
1230 | |
1231 | /* fb_mmap |
1232 | * Map video memory in user space. We don't use the generic fb_mmap |
1233 | * method mainly to allow the use of the TLB streaming flag (CCA=6) |
1234 | */ |
1235 | static int au1200fb_fb_mmap(struct fb_info *info, struct vm_area_struct *vma) |
1236 | { |
1237 | struct au1200fb_device *fbdev = info->par; |
1238 | |
1239 | vma->vm_page_prot = pgprot_decrypted(vma->vm_page_prot); |
1240 | |
1241 | return dma_mmap_coherent(fbdev->dev, vma, |
1242 | fbdev->fb_mem, fbdev->fb_phys, fbdev->fb_len); |
1243 | } |
1244 | |
1245 | static void set_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata) |
1246 | { |
1247 | |
1248 | unsigned int hi1, divider; |
1249 | |
1250 | /* SCREEN_SIZE: user cannot reset size, must switch panel choice */ |
1251 | |
1252 | if (pdata->flags & SCREEN_BACKCOLOR) |
1253 | lcd->backcolor = pdata->backcolor; |
1254 | |
1255 | if (pdata->flags & SCREEN_BRIGHTNESS) { |
1256 | |
1257 | // limit brightness pwm duty to >= 30/1600 |
1258 | if (pdata->brightness < 30) { |
1259 | pdata->brightness = 30; |
1260 | } |
1261 | divider = (lcd->pwmdiv & 0x3FFFF) + 1; |
1262 | hi1 = (((pdata->brightness & 0xFF)+1) * divider >> 8); |
1263 | lcd->pwmhi &= 0xFFFF; |
1264 | lcd->pwmhi |= (hi1 << 16); |
1265 | } |
1266 | |
1267 | if (pdata->flags & SCREEN_COLORKEY) |
1268 | lcd->colorkey = pdata->colorkey; |
1269 | |
1270 | if (pdata->flags & SCREEN_MASK) |
1271 | lcd->colorkeymsk = pdata->mask; |
1272 | wmb(); /* drain writebuffer */ |
1273 | } |
1274 | |
1275 | static void get_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata) |
1276 | { |
1277 | unsigned int hi1, divider; |
1278 | |
1279 | pdata->xsize = ((lcd->screen & LCD_SCREEN_SX) >> 19) + 1; |
1280 | pdata->ysize = ((lcd->screen & LCD_SCREEN_SY) >> 8) + 1; |
1281 | |
1282 | pdata->backcolor = lcd->backcolor; |
1283 | pdata->colorkey = lcd->colorkey; |
1284 | pdata->mask = lcd->colorkeymsk; |
1285 | |
1286 | // brightness |
1287 | hi1 = (lcd->pwmhi >> 16) + 1; |
1288 | divider = (lcd->pwmdiv & 0x3FFFF) + 1; |
1289 | pdata->brightness = ((hi1 << 8) / divider) - 1; |
1290 | wmb(); /* drain writebuffer */ |
1291 | } |
1292 | |
1293 | static void set_window(unsigned int plane, |
1294 | struct au1200_lcd_window_regs_t *pdata) |
1295 | { |
1296 | unsigned int val, bpp; |
1297 | |
1298 | /* Window control register 0 */ |
1299 | if (pdata->flags & WIN_POSITION) { |
1300 | val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_OX | |
1301 | LCD_WINCTRL0_OY); |
1302 | val |= ((pdata->xpos << 21) & LCD_WINCTRL0_OX); |
1303 | val |= ((pdata->ypos << 10) & LCD_WINCTRL0_OY); |
1304 | lcd->window[plane].winctrl0 = val; |
1305 | } |
1306 | if (pdata->flags & WIN_ALPHA_COLOR) { |
1307 | val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_A); |
1308 | val |= ((pdata->alpha_color << 2) & LCD_WINCTRL0_A); |
1309 | lcd->window[plane].winctrl0 = val; |
1310 | } |
1311 | if (pdata->flags & WIN_ALPHA_MODE) { |
1312 | val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_AEN); |
1313 | val |= ((pdata->alpha_mode << 1) & LCD_WINCTRL0_AEN); |
1314 | lcd->window[plane].winctrl0 = val; |
1315 | } |
1316 | |
1317 | /* Window control register 1 */ |
1318 | if (pdata->flags & WIN_PRIORITY) { |
1319 | val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PRI); |
1320 | val |= ((pdata->priority << 30) & LCD_WINCTRL1_PRI); |
1321 | lcd->window[plane].winctrl1 = val; |
1322 | } |
1323 | if (pdata->flags & WIN_CHANNEL) { |
1324 | val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PIPE); |
1325 | val |= ((pdata->channel << 29) & LCD_WINCTRL1_PIPE); |
1326 | lcd->window[plane].winctrl1 = val; |
1327 | } |
1328 | if (pdata->flags & WIN_BUFFER_FORMAT) { |
1329 | val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_FRM); |
1330 | val |= ((pdata->buffer_format << 25) & LCD_WINCTRL1_FRM); |
1331 | lcd->window[plane].winctrl1 = val; |
1332 | } |
1333 | if (pdata->flags & WIN_COLOR_ORDER) { |
1334 | val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_CCO); |
1335 | val |= ((pdata->color_order << 24) & LCD_WINCTRL1_CCO); |
1336 | lcd->window[plane].winctrl1 = val; |
1337 | } |
1338 | if (pdata->flags & WIN_PIXEL_ORDER) { |
1339 | val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PO); |
1340 | val |= ((pdata->pixel_order << 22) & LCD_WINCTRL1_PO); |
1341 | lcd->window[plane].winctrl1 = val; |
1342 | } |
1343 | if (pdata->flags & WIN_SIZE) { |
1344 | val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_SZX | |
1345 | LCD_WINCTRL1_SZY); |
1346 | val |= (((pdata->xsize << 11) - 1) & LCD_WINCTRL1_SZX); |
1347 | val |= (((pdata->ysize) - 1) & LCD_WINCTRL1_SZY); |
1348 | lcd->window[plane].winctrl1 = val; |
1349 | /* program buffer line width */ |
1350 | bpp = winbpp(winctrl1: val) / 8; |
1351 | val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_BX); |
1352 | val |= (((pdata->xsize * bpp) << 8) & LCD_WINCTRL2_BX); |
1353 | lcd->window[plane].winctrl2 = val; |
1354 | } |
1355 | |
1356 | /* Window control register 2 */ |
1357 | if (pdata->flags & WIN_COLORKEY_MODE) { |
1358 | val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_CKMODE); |
1359 | val |= ((pdata->colorkey_mode << 24) & LCD_WINCTRL2_CKMODE); |
1360 | lcd->window[plane].winctrl2 = val; |
1361 | } |
1362 | if (pdata->flags & WIN_DOUBLE_BUFFER_MODE) { |
1363 | val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_DBM); |
1364 | val |= ((pdata->double_buffer_mode << 23) & LCD_WINCTRL2_DBM); |
1365 | lcd->window[plane].winctrl2 = val; |
1366 | } |
1367 | if (pdata->flags & WIN_RAM_ARRAY_MODE) { |
1368 | val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_RAM); |
1369 | val |= ((pdata->ram_array_mode << 21) & LCD_WINCTRL2_RAM); |
1370 | lcd->window[plane].winctrl2 = val; |
1371 | } |
1372 | |
1373 | /* Buffer line width programmed with WIN_SIZE */ |
1374 | |
1375 | if (pdata->flags & WIN_BUFFER_SCALE) { |
1376 | val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_SCX | |
1377 | LCD_WINCTRL2_SCY); |
1378 | val |= ((pdata->xsize << 11) & LCD_WINCTRL2_SCX); |
1379 | val |= ((pdata->ysize) & LCD_WINCTRL2_SCY); |
1380 | lcd->window[plane].winctrl2 = val; |
1381 | } |
1382 | |
1383 | if (pdata->flags & WIN_ENABLE) { |
1384 | val = lcd->winenable; |
1385 | val &= ~(1<<plane); |
1386 | val |= (pdata->enable & 1) << plane; |
1387 | lcd->winenable = val; |
1388 | } |
1389 | wmb(); /* drain writebuffer */ |
1390 | } |
1391 | |
1392 | static void get_window(unsigned int plane, |
1393 | struct au1200_lcd_window_regs_t *pdata) |
1394 | { |
1395 | /* Window control register 0 */ |
1396 | pdata->xpos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OX) >> 21; |
1397 | pdata->ypos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OY) >> 10; |
1398 | pdata->alpha_color = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_A) >> 2; |
1399 | pdata->alpha_mode = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_AEN) >> 1; |
1400 | |
1401 | /* Window control register 1 */ |
1402 | pdata->priority = (lcd->window[plane].winctrl1& LCD_WINCTRL1_PRI) >> 30; |
1403 | pdata->channel = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PIPE) >> 29; |
1404 | pdata->buffer_format = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_FRM) >> 25; |
1405 | pdata->color_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_CCO) >> 24; |
1406 | pdata->pixel_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PO) >> 22; |
1407 | pdata->xsize = ((lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZX) >> 11) + 1; |
1408 | pdata->ysize = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZY) + 1; |
1409 | |
1410 | /* Window control register 2 */ |
1411 | pdata->colorkey_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_CKMODE) >> 24; |
1412 | pdata->double_buffer_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_DBM) >> 23; |
1413 | pdata->ram_array_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_RAM) >> 21; |
1414 | |
1415 | pdata->enable = (lcd->winenable >> plane) & 1; |
1416 | wmb(); /* drain writebuffer */ |
1417 | } |
1418 | |
1419 | static int au1200fb_ioctl(struct fb_info *info, unsigned int cmd, |
1420 | unsigned long arg) |
1421 | { |
1422 | struct au1200fb_device *fbdev = info->par; |
1423 | int plane; |
1424 | int val; |
1425 | |
1426 | plane = fbinfo2index(fb_info: info); |
1427 | print_dbg("au1200fb: ioctl %d on plane %d\n" , cmd, plane); |
1428 | |
1429 | if (cmd == AU1200_LCD_FB_IOCTL) { |
1430 | struct au1200_lcd_iodata_t iodata; |
1431 | |
1432 | if (copy_from_user(to: &iodata, from: (void __user *) arg, n: sizeof(iodata))) |
1433 | return -EFAULT; |
1434 | |
1435 | print_dbg("FB IOCTL called\n" ); |
1436 | |
1437 | switch (iodata.subcmd) { |
1438 | case AU1200_LCD_SET_SCREEN: |
1439 | print_dbg("AU1200_LCD_SET_SCREEN\n" ); |
1440 | set_global(cmd, pdata: &iodata.global); |
1441 | break; |
1442 | |
1443 | case AU1200_LCD_GET_SCREEN: |
1444 | print_dbg("AU1200_LCD_GET_SCREEN\n" ); |
1445 | get_global(cmd, pdata: &iodata.global); |
1446 | break; |
1447 | |
1448 | case AU1200_LCD_SET_WINDOW: |
1449 | print_dbg("AU1200_LCD_SET_WINDOW\n" ); |
1450 | set_window(plane, pdata: &iodata.window); |
1451 | break; |
1452 | |
1453 | case AU1200_LCD_GET_WINDOW: |
1454 | print_dbg("AU1200_LCD_GET_WINDOW\n" ); |
1455 | get_window(plane, pdata: &iodata.window); |
1456 | break; |
1457 | |
1458 | case AU1200_LCD_SET_PANEL: |
1459 | print_dbg("AU1200_LCD_SET_PANEL\n" ); |
1460 | if ((iodata.global.panel_choice >= 0) && |
1461 | (iodata.global.panel_choice < |
1462 | NUM_PANELS)) |
1463 | { |
1464 | struct panel_settings *newpanel; |
1465 | panel_index = iodata.global.panel_choice; |
1466 | newpanel = &known_lcd_panels[panel_index]; |
1467 | au1200_setpanel(newpanel, pd: fbdev->pd); |
1468 | } |
1469 | break; |
1470 | |
1471 | case AU1200_LCD_GET_PANEL: |
1472 | print_dbg("AU1200_LCD_GET_PANEL\n" ); |
1473 | iodata.global.panel_choice = panel_index; |
1474 | break; |
1475 | |
1476 | default: |
1477 | return -EINVAL; |
1478 | } |
1479 | |
1480 | val = copy_to_user(to: (void __user *) arg, from: &iodata, n: sizeof(iodata)); |
1481 | if (val) { |
1482 | print_dbg("error: could not copy %d bytes\n" , val); |
1483 | return -EFAULT; |
1484 | } |
1485 | } |
1486 | |
1487 | return 0; |
1488 | } |
1489 | |
1490 | |
1491 | static const struct fb_ops au1200fb_fb_ops = { |
1492 | .owner = THIS_MODULE, |
1493 | __FB_DEFAULT_DMAMEM_OPS_RDWR, |
1494 | .fb_check_var = au1200fb_fb_check_var, |
1495 | .fb_set_par = au1200fb_fb_set_par, |
1496 | .fb_setcolreg = au1200fb_fb_setcolreg, |
1497 | .fb_blank = au1200fb_fb_blank, |
1498 | __FB_DEFAULT_DMAMEM_OPS_DRAW, |
1499 | .fb_sync = NULL, |
1500 | .fb_ioctl = au1200fb_ioctl, |
1501 | .fb_mmap = au1200fb_fb_mmap, |
1502 | }; |
1503 | |
1504 | /*-------------------------------------------------------------------------*/ |
1505 | |
1506 | static irqreturn_t au1200fb_handle_irq(int irq, void* dev_id) |
1507 | { |
1508 | /* Nothing to do for now, just clear any pending interrupt */ |
1509 | lcd->intstatus = lcd->intstatus; |
1510 | wmb(); /* drain writebuffer */ |
1511 | |
1512 | return IRQ_HANDLED; |
1513 | } |
1514 | |
1515 | /*-------------------------------------------------------------------------*/ |
1516 | |
1517 | /* AU1200 LCD device probe helpers */ |
1518 | |
1519 | static int au1200fb_init_fbinfo(struct au1200fb_device *fbdev) |
1520 | { |
1521 | struct fb_info *fbi = fbdev->fb_info; |
1522 | int bpp, ret; |
1523 | |
1524 | fbi->fbops = &au1200fb_fb_ops; |
1525 | |
1526 | bpp = winbpp(winctrl1: win->w[fbdev->plane].mode_winctrl1); |
1527 | |
1528 | /* Copy monitor specs from panel data */ |
1529 | /* fixme: we're setting up LCD controller windows, so these dont give a |
1530 | damn as to what the monitor specs are (the panel itself does, but that |
1531 | isn't done here...so maybe need a generic catchall monitor setting??? */ |
1532 | memcpy(&fbi->monspecs, &panel->monspecs, sizeof(struct fb_monspecs)); |
1533 | |
1534 | /* We first try the user mode passed in argument. If that failed, |
1535 | * or if no one has been specified, we default to the first mode of the |
1536 | * panel list. Note that after this call, var data will be set */ |
1537 | if (!fb_find_mode(var: &fbi->var, |
1538 | info: fbi, |
1539 | NULL, /* drv_info.opt_mode, */ |
1540 | db: fbi->monspecs.modedb, |
1541 | dbsize: fbi->monspecs.modedb_len, |
1542 | default_mode: fbi->monspecs.modedb, |
1543 | default_bpp: bpp)) { |
1544 | |
1545 | print_err("Cannot find valid mode for panel %s" , panel->name); |
1546 | return -EFAULT; |
1547 | } |
1548 | |
1549 | fbi->pseudo_palette = kcalloc(n: 16, size: sizeof(u32), GFP_KERNEL); |
1550 | if (!fbi->pseudo_palette) |
1551 | return -ENOMEM; |
1552 | |
1553 | ret = fb_alloc_cmap(cmap: &fbi->cmap, AU1200_LCD_NBR_PALETTE_ENTRIES, transp: 0); |
1554 | if (ret < 0) { |
1555 | print_err("Fail to allocate colormap (%d entries)" , |
1556 | AU1200_LCD_NBR_PALETTE_ENTRIES); |
1557 | return ret; |
1558 | } |
1559 | |
1560 | strncpy(p: fbi->fix.id, q: "AU1200" , size: sizeof(fbi->fix.id)); |
1561 | fbi->fix.smem_start = fbdev->fb_phys; |
1562 | fbi->fix.smem_len = fbdev->fb_len; |
1563 | fbi->fix.type = FB_TYPE_PACKED_PIXELS; |
1564 | fbi->fix.xpanstep = 0; |
1565 | fbi->fix.ypanstep = 0; |
1566 | fbi->fix.mmio_start = 0; |
1567 | fbi->fix.mmio_len = 0; |
1568 | fbi->fix.accel = FB_ACCEL_NONE; |
1569 | |
1570 | fbi->flags |= FBINFO_VIRTFB; |
1571 | |
1572 | fbi->screen_buffer = fbdev->fb_mem; |
1573 | |
1574 | au1200fb_update_fbinfo(fbi); |
1575 | |
1576 | return 0; |
1577 | } |
1578 | |
1579 | /*-------------------------------------------------------------------------*/ |
1580 | |
1581 | |
1582 | static int au1200fb_setup(struct au1200fb_platdata *pd) |
1583 | { |
1584 | char *options = NULL; |
1585 | char *this_opt, *endptr; |
1586 | int num_panels = ARRAY_SIZE(known_lcd_panels); |
1587 | int panel_idx = -1; |
1588 | |
1589 | fb_get_options(DRIVER_NAME, option: &options); |
1590 | |
1591 | if (!options) |
1592 | goto out; |
1593 | |
1594 | while ((this_opt = strsep(&options, "," )) != NULL) { |
1595 | /* Panel option - can be panel name, |
1596 | * "bs" for board-switch, or number/index */ |
1597 | if (!strncmp(this_opt, "panel:" , 6)) { |
1598 | int i; |
1599 | long int li; |
1600 | char *endptr; |
1601 | this_opt += 6; |
1602 | /* First check for index, which allows |
1603 | * to short circuit this mess */ |
1604 | li = simple_strtol(this_opt, &endptr, 0); |
1605 | if (*endptr == '\0') |
1606 | panel_idx = (int)li; |
1607 | else if (strcmp(this_opt, "bs" ) == 0) |
1608 | panel_idx = pd->panel_index(); |
1609 | else { |
1610 | for (i = 0; i < num_panels; i++) { |
1611 | if (!strcmp(this_opt, |
1612 | known_lcd_panels[i].name)) { |
1613 | panel_idx = i; |
1614 | break; |
1615 | } |
1616 | } |
1617 | } |
1618 | if ((panel_idx < 0) || (panel_idx >= num_panels)) |
1619 | print_warn("Panel %s not supported!" , this_opt); |
1620 | else |
1621 | panel_index = panel_idx; |
1622 | |
1623 | } else if (strncmp(this_opt, "nohwcursor" , 10) == 0) |
1624 | nohwcursor = 1; |
1625 | else if (strncmp(this_opt, "devices:" , 8) == 0) { |
1626 | this_opt += 8; |
1627 | device_count = simple_strtol(this_opt, &endptr, 0); |
1628 | if ((device_count < 0) || |
1629 | (device_count > MAX_DEVICE_COUNT)) |
1630 | device_count = MAX_DEVICE_COUNT; |
1631 | } else if (strncmp(this_opt, "wincfg:" , 7) == 0) { |
1632 | this_opt += 7; |
1633 | window_index = simple_strtol(this_opt, &endptr, 0); |
1634 | if ((window_index < 0) || |
1635 | (window_index >= ARRAY_SIZE(windows))) |
1636 | window_index = DEFAULT_WINDOW_INDEX; |
1637 | } else if (strncmp(this_opt, "off" , 3) == 0) |
1638 | return 1; |
1639 | else |
1640 | print_warn("Unsupported option \"%s\"" , this_opt); |
1641 | } |
1642 | |
1643 | out: |
1644 | return 0; |
1645 | } |
1646 | |
1647 | /* AU1200 LCD controller device driver */ |
1648 | static int au1200fb_drv_probe(struct platform_device *dev) |
1649 | { |
1650 | struct au1200fb_device *fbdev; |
1651 | struct au1200fb_platdata *pd; |
1652 | struct fb_info *fbi = NULL; |
1653 | int bpp, plane, ret, irq; |
1654 | |
1655 | print_info("" DRIVER_DESC "" ); |
1656 | |
1657 | pd = dev->dev.platform_data; |
1658 | if (!pd) |
1659 | return -ENODEV; |
1660 | |
1661 | /* Setup driver with options */ |
1662 | if (au1200fb_setup(pd)) |
1663 | return -ENODEV; |
1664 | |
1665 | /* Point to the panel selected */ |
1666 | panel = &known_lcd_panels[panel_index]; |
1667 | win = &windows[window_index]; |
1668 | |
1669 | printk(DRIVER_NAME ": Panel %d %s\n" , panel_index, panel->name); |
1670 | printk(DRIVER_NAME ": Win %d %s\n" , window_index, win->name); |
1671 | |
1672 | for (plane = 0; plane < device_count; ++plane) { |
1673 | bpp = winbpp(winctrl1: win->w[plane].mode_winctrl1); |
1674 | if (win->w[plane].xres == 0) |
1675 | win->w[plane].xres = panel->Xres; |
1676 | if (win->w[plane].yres == 0) |
1677 | win->w[plane].yres = panel->Yres; |
1678 | |
1679 | fbi = framebuffer_alloc(size: sizeof(struct au1200fb_device), |
1680 | dev: &dev->dev); |
1681 | if (!fbi) { |
1682 | ret = -ENOMEM; |
1683 | goto failed; |
1684 | } |
1685 | |
1686 | _au1200fb_infos[plane] = fbi; |
1687 | fbdev = fbi->par; |
1688 | fbdev->fb_info = fbi; |
1689 | fbdev->pd = pd; |
1690 | fbdev->dev = &dev->dev; |
1691 | |
1692 | fbdev->plane = plane; |
1693 | |
1694 | /* Allocate the framebuffer to the maximum screen size */ |
1695 | fbdev->fb_len = (win->w[plane].xres * win->w[plane].yres * bpp) / 8; |
1696 | |
1697 | fbdev->fb_mem = dmam_alloc_attrs(dev: &dev->dev, |
1698 | PAGE_ALIGN(fbdev->fb_len), |
1699 | dma_handle: &fbdev->fb_phys, GFP_KERNEL, attrs: 0); |
1700 | if (!fbdev->fb_mem) { |
1701 | print_err("fail to allocate framebuffer (size: %dK))" , |
1702 | fbdev->fb_len / 1024); |
1703 | ret = -ENOMEM; |
1704 | goto failed; |
1705 | } |
1706 | |
1707 | print_dbg("Framebuffer memory map at %p" , fbdev->fb_mem); |
1708 | print_dbg("phys=0x%08x, size=%dK" , fbdev->fb_phys, fbdev->fb_len / 1024); |
1709 | |
1710 | /* Init FB data */ |
1711 | ret = au1200fb_init_fbinfo(fbdev); |
1712 | if (ret < 0) |
1713 | goto failed; |
1714 | |
1715 | /* Register new framebuffer */ |
1716 | ret = register_framebuffer(fb_info: fbi); |
1717 | if (ret < 0) { |
1718 | print_err("cannot register new framebuffer" ); |
1719 | goto failed; |
1720 | } |
1721 | |
1722 | au1200fb_fb_set_par(fbi); |
1723 | } |
1724 | |
1725 | /* Now hook interrupt too */ |
1726 | irq = platform_get_irq(dev, 0); |
1727 | if (irq < 0) |
1728 | return irq; |
1729 | |
1730 | ret = request_irq(irq, handler: au1200fb_handle_irq, |
1731 | IRQF_SHARED, name: "lcd" , dev: (void *)dev); |
1732 | if (ret) { |
1733 | print_err("fail to request interrupt line %d (err: %d)" , |
1734 | irq, ret); |
1735 | goto failed; |
1736 | } |
1737 | |
1738 | platform_set_drvdata(pdev: dev, data: pd); |
1739 | |
1740 | /* Kickstart the panel */ |
1741 | au1200_setpanel(newpanel: panel, pd); |
1742 | |
1743 | return 0; |
1744 | |
1745 | failed: |
1746 | for (plane = 0; plane < device_count; ++plane) { |
1747 | fbi = _au1200fb_infos[plane]; |
1748 | if (!fbi) |
1749 | break; |
1750 | |
1751 | /* Clean up all probe data */ |
1752 | unregister_framebuffer(fb_info: fbi); |
1753 | if (fbi->cmap.len != 0) |
1754 | fb_dealloc_cmap(cmap: &fbi->cmap); |
1755 | kfree(objp: fbi->pseudo_palette); |
1756 | |
1757 | framebuffer_release(info: fbi); |
1758 | _au1200fb_infos[plane] = NULL; |
1759 | } |
1760 | return ret; |
1761 | } |
1762 | |
1763 | static void au1200fb_drv_remove(struct platform_device *dev) |
1764 | { |
1765 | struct au1200fb_platdata *pd = platform_get_drvdata(pdev: dev); |
1766 | struct fb_info *fbi; |
1767 | int plane; |
1768 | |
1769 | /* Turn off the panel */ |
1770 | au1200_setpanel(NULL, pd); |
1771 | |
1772 | for (plane = 0; plane < device_count; ++plane) { |
1773 | fbi = _au1200fb_infos[plane]; |
1774 | |
1775 | /* Clean up all probe data */ |
1776 | unregister_framebuffer(fb_info: fbi); |
1777 | if (fbi->cmap.len != 0) |
1778 | fb_dealloc_cmap(cmap: &fbi->cmap); |
1779 | kfree(objp: fbi->pseudo_palette); |
1780 | |
1781 | framebuffer_release(info: fbi); |
1782 | _au1200fb_infos[plane] = NULL; |
1783 | } |
1784 | |
1785 | free_irq(platform_get_irq(dev, 0), (void *)dev); |
1786 | } |
1787 | |
1788 | #ifdef CONFIG_PM |
1789 | static int au1200fb_drv_suspend(struct device *dev) |
1790 | { |
1791 | struct au1200fb_platdata *pd = dev_get_drvdata(dev); |
1792 | au1200_setpanel(NULL, pd); |
1793 | |
1794 | lcd->outmask = 0; |
1795 | wmb(); /* drain writebuffer */ |
1796 | |
1797 | return 0; |
1798 | } |
1799 | |
1800 | static int au1200fb_drv_resume(struct device *dev) |
1801 | { |
1802 | struct au1200fb_platdata *pd = dev_get_drvdata(dev); |
1803 | struct fb_info *fbi; |
1804 | int i; |
1805 | |
1806 | /* Kickstart the panel */ |
1807 | au1200_setpanel(newpanel: panel, pd); |
1808 | |
1809 | for (i = 0; i < device_count; i++) { |
1810 | fbi = _au1200fb_infos[i]; |
1811 | au1200fb_fb_set_par(fbi); |
1812 | } |
1813 | |
1814 | return 0; |
1815 | } |
1816 | |
1817 | static const struct dev_pm_ops au1200fb_pmops = { |
1818 | .suspend = au1200fb_drv_suspend, |
1819 | .resume = au1200fb_drv_resume, |
1820 | .freeze = au1200fb_drv_suspend, |
1821 | .thaw = au1200fb_drv_resume, |
1822 | }; |
1823 | |
1824 | #define AU1200FB_PMOPS (&au1200fb_pmops) |
1825 | |
1826 | #else |
1827 | #define AU1200FB_PMOPS NULL |
1828 | #endif /* CONFIG_PM */ |
1829 | |
1830 | static struct platform_driver au1200fb_driver = { |
1831 | .driver = { |
1832 | .name = "au1200-lcd" , |
1833 | .pm = AU1200FB_PMOPS, |
1834 | }, |
1835 | .probe = au1200fb_drv_probe, |
1836 | .remove_new = au1200fb_drv_remove, |
1837 | }; |
1838 | module_platform_driver(au1200fb_driver); |
1839 | |
1840 | MODULE_DESCRIPTION(DRIVER_DESC); |
1841 | MODULE_LICENSE("GPL" ); |
1842 | |