2 * linux/drivers/video/modedb.c -- Standard video mode database management
4 * Copyright (C) 1999 Geert Uytterhoeven
6 * 2001 - Documented with DocBook
7 * - Brad Douglas <brad@neruo.com>
9 * This file is subject to the terms and conditions of the GNU General Public
10 * License. See the file COPYING in the main directory of this archive for
14 #include <linux/module.h>
19 #define name_matches(v, s, l) \
20 ((v).name && !strncmp((s), (v).name, (l)) && strlen((v).name) == (l))
21 #define res_matches(v, x, y) \
22 ((v).xres == (x) && (v).yres == (y))
25 #define DPRINTK(fmt, args...) printk("modedb %s: " fmt, __func__ , ## args)
27 #define DPRINTK(fmt, args...)
30 const char *fb_mode_option
;
31 EXPORT_SYMBOL_GPL(fb_mode_option
);
34 * Standard video mode definitions (taken from XFree86)
37 static const struct fb_videomode modedb
[] = {
39 /* 640x400 @ 70 Hz, 31.5 kHz hsync */
40 NULL
, 70, 640, 400, 39721, 40, 24, 39, 9, 96, 2,
41 0, FB_VMODE_NONINTERLACED
43 /* 640x480 @ 60 Hz, 31.5 kHz hsync */
44 NULL
, 60, 640, 480, 39721, 40, 24, 32, 11, 96, 2,
45 0, FB_VMODE_NONINTERLACED
47 /* 800x600 @ 56 Hz, 35.15 kHz hsync */
48 NULL
, 56, 800, 600, 27777, 128, 24, 22, 1, 72, 2,
49 0, FB_VMODE_NONINTERLACED
51 /* 1024x768 @ 87 Hz interlaced, 35.5 kHz hsync */
52 NULL
, 87, 1024, 768, 22271, 56, 24, 33, 8, 160, 8,
53 0, FB_VMODE_INTERLACED
55 /* 640x400 @ 85 Hz, 37.86 kHz hsync */
56 NULL
, 85, 640, 400, 31746, 96, 32, 41, 1, 64, 3,
57 FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
59 /* 640x480 @ 72 Hz, 36.5 kHz hsync */
60 NULL
, 72, 640, 480, 31746, 144, 40, 30, 8, 40, 3,
61 0, FB_VMODE_NONINTERLACED
63 /* 640x480 @ 75 Hz, 37.50 kHz hsync */
64 NULL
, 75, 640, 480, 31746, 120, 16, 16, 1, 64, 3,
65 0, FB_VMODE_NONINTERLACED
67 /* 800x600 @ 60 Hz, 37.8 kHz hsync */
68 NULL
, 60, 800, 600, 25000, 88, 40, 23, 1, 128, 4,
69 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
71 /* 640x480 @ 85 Hz, 43.27 kHz hsync */
72 NULL
, 85, 640, 480, 27777, 80, 56, 25, 1, 56, 3,
73 0, FB_VMODE_NONINTERLACED
75 /* 1152x864 @ 89 Hz interlaced, 44 kHz hsync */
76 NULL
, 89, 1152, 864, 15384, 96, 16, 110, 1, 216, 10,
77 0, FB_VMODE_INTERLACED
79 /* 800x600 @ 72 Hz, 48.0 kHz hsync */
80 NULL
, 72, 800, 600, 20000, 64, 56, 23, 37, 120, 6,
81 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
83 /* 1024x768 @ 60 Hz, 48.4 kHz hsync */
84 NULL
, 60, 1024, 768, 15384, 168, 8, 29, 3, 144, 6,
85 0, FB_VMODE_NONINTERLACED
87 /* 640x480 @ 100 Hz, 53.01 kHz hsync */
88 NULL
, 100, 640, 480, 21834, 96, 32, 36, 8, 96, 6,
89 0, FB_VMODE_NONINTERLACED
91 /* 1152x864 @ 60 Hz, 53.5 kHz hsync */
92 NULL
, 60, 1152, 864, 11123, 208, 64, 16, 4, 256, 8,
93 0, FB_VMODE_NONINTERLACED
95 /* 800x600 @ 85 Hz, 55.84 kHz hsync */
96 NULL
, 85, 800, 600, 16460, 160, 64, 36, 16, 64, 5,
97 0, FB_VMODE_NONINTERLACED
99 /* 1024x768 @ 70 Hz, 56.5 kHz hsync */
100 NULL
, 70, 1024, 768, 13333, 144, 24, 29, 3, 136, 6,
101 0, FB_VMODE_NONINTERLACED
103 /* 1280x1024 @ 87 Hz interlaced, 51 kHz hsync */
104 NULL
, 87, 1280, 1024, 12500, 56, 16, 128, 1, 216, 12,
105 0, FB_VMODE_INTERLACED
107 /* 800x600 @ 100 Hz, 64.02 kHz hsync */
108 NULL
, 100, 800, 600, 14357, 160, 64, 30, 4, 64, 6,
109 0, FB_VMODE_NONINTERLACED
111 /* 1024x768 @ 76 Hz, 62.5 kHz hsync */
112 NULL
, 76, 1024, 768, 11764, 208, 8, 36, 16, 120, 3,
113 0, FB_VMODE_NONINTERLACED
115 /* 1152x864 @ 70 Hz, 62.4 kHz hsync */
116 NULL
, 70, 1152, 864, 10869, 106, 56, 20, 1, 160, 10,
117 0, FB_VMODE_NONINTERLACED
119 /* 1280x1024 @ 61 Hz, 64.2 kHz hsync */
120 NULL
, 61, 1280, 1024, 9090, 200, 48, 26, 1, 184, 3,
121 0, FB_VMODE_NONINTERLACED
123 /* 1400x1050 @ 60Hz, 63.9 kHz hsync */
124 NULL
, 60, 1400, 1050, 9259, 136, 40, 13, 1, 112, 3,
125 0, FB_VMODE_NONINTERLACED
127 /* 1400x1050 @ 75,107 Hz, 82,392 kHz +hsync +vsync*/
128 NULL
, 75, 1400, 1050, 7190, 120, 56, 23, 10, 112, 13,
129 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
131 /* 1400x1050 @ 60 Hz, ? kHz +hsync +vsync*/
132 NULL
, 60, 1400, 1050, 9259, 128, 40, 12, 0, 112, 3,
133 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
135 /* 1024x768 @ 85 Hz, 70.24 kHz hsync */
136 NULL
, 85, 1024, 768, 10111, 192, 32, 34, 14, 160, 6,
137 0, FB_VMODE_NONINTERLACED
139 /* 1152x864 @ 78 Hz, 70.8 kHz hsync */
140 NULL
, 78, 1152, 864, 9090, 228, 88, 32, 0, 84, 12,
141 0, FB_VMODE_NONINTERLACED
143 /* 1280x1024 @ 70 Hz, 74.59 kHz hsync */
144 NULL
, 70, 1280, 1024, 7905, 224, 32, 28, 8, 160, 8,
145 0, FB_VMODE_NONINTERLACED
147 /* 1600x1200 @ 60Hz, 75.00 kHz hsync */
148 NULL
, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3,
149 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
151 /* 1152x864 @ 84 Hz, 76.0 kHz hsync */
152 NULL
, 84, 1152, 864, 7407, 184, 312, 32, 0, 128, 12,
153 0, FB_VMODE_NONINTERLACED
155 /* 1280x1024 @ 74 Hz, 78.85 kHz hsync */
156 NULL
, 74, 1280, 1024, 7407, 256, 32, 34, 3, 144, 3,
157 0, FB_VMODE_NONINTERLACED
159 /* 1024x768 @ 100Hz, 80.21 kHz hsync */
160 NULL
, 100, 1024, 768, 8658, 192, 32, 21, 3, 192, 10,
161 0, FB_VMODE_NONINTERLACED
163 /* 1280x1024 @ 76 Hz, 81.13 kHz hsync */
164 NULL
, 76, 1280, 1024, 7407, 248, 32, 34, 3, 104, 3,
165 0, FB_VMODE_NONINTERLACED
167 /* 1600x1200 @ 70 Hz, 87.50 kHz hsync */
168 NULL
, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3,
169 0, FB_VMODE_NONINTERLACED
171 /* 1152x864 @ 100 Hz, 89.62 kHz hsync */
172 NULL
, 100, 1152, 864, 7264, 224, 32, 17, 2, 128, 19,
173 0, FB_VMODE_NONINTERLACED
175 /* 1280x1024 @ 85 Hz, 91.15 kHz hsync */
176 NULL
, 85, 1280, 1024, 6349, 224, 64, 44, 1, 160, 3,
177 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
179 /* 1600x1200 @ 75 Hz, 93.75 kHz hsync */
180 NULL
, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3,
181 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
183 /* 1680x1050 @ 60 Hz, 65.191 kHz hsync */
184 NULL
, 60, 1680, 1050, 6848, 280, 104, 30, 3, 176, 6,
185 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
187 /* 1600x1200 @ 85 Hz, 105.77 kHz hsync */
188 NULL
, 85, 1600, 1200, 4545, 272, 16, 37, 4, 192, 3,
189 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
191 /* 1280x1024 @ 100 Hz, 107.16 kHz hsync */
192 NULL
, 100, 1280, 1024, 5502, 256, 32, 26, 7, 128, 15,
193 0, FB_VMODE_NONINTERLACED
195 /* 1800x1440 @ 64Hz, 96.15 kHz hsync */
196 NULL
, 64, 1800, 1440, 4347, 304, 96, 46, 1, 192, 3,
197 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
199 /* 1800x1440 @ 70Hz, 104.52 kHz hsync */
200 NULL
, 70, 1800, 1440, 4000, 304, 96, 46, 1, 192, 3,
201 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
203 /* 512x384 @ 78 Hz, 31.50 kHz hsync */
204 NULL
, 78, 512, 384, 49603, 48, 16, 16, 1, 64, 3,
205 0, FB_VMODE_NONINTERLACED
207 /* 512x384 @ 85 Hz, 34.38 kHz hsync */
208 NULL
, 85, 512, 384, 45454, 48, 16, 16, 1, 64, 3,
209 0, FB_VMODE_NONINTERLACED
211 /* 320x200 @ 70 Hz, 31.5 kHz hsync, 8:5 aspect ratio */
212 NULL
, 70, 320, 200, 79440, 16, 16, 20, 4, 48, 1,
215 /* 320x240 @ 60 Hz, 31.5 kHz hsync, 4:3 aspect ratio */
216 NULL
, 60, 320, 240, 79440, 16, 16, 16, 5, 48, 1,
219 /* 320x240 @ 72 Hz, 36.5 kHz hsync */
220 NULL
, 72, 320, 240, 63492, 16, 16, 16, 4, 48, 2,
223 /* 400x300 @ 56 Hz, 35.2 kHz hsync, 4:3 aspect ratio */
224 NULL
, 56, 400, 300, 55555, 64, 16, 10, 1, 32, 1,
227 /* 400x300 @ 60 Hz, 37.8 kHz hsync */
228 NULL
, 60, 400, 300, 50000, 48, 16, 11, 1, 64, 2,
231 /* 400x300 @ 72 Hz, 48.0 kHz hsync */
232 NULL
, 72, 400, 300, 40000, 32, 24, 11, 19, 64, 3,
235 /* 480x300 @ 56 Hz, 35.2 kHz hsync, 8:5 aspect ratio */
236 NULL
, 56, 480, 300, 46176, 80, 16, 10, 1, 40, 1,
239 /* 480x300 @ 60 Hz, 37.8 kHz hsync */
240 NULL
, 60, 480, 300, 41858, 56, 16, 11, 1, 80, 2,
243 /* 480x300 @ 63 Hz, 39.6 kHz hsync */
244 NULL
, 63, 480, 300, 40000, 56, 16, 11, 1, 80, 2,
247 /* 480x300 @ 72 Hz, 48.0 kHz hsync */
248 NULL
, 72, 480, 300, 33386, 40, 24, 11, 19, 80, 3,
251 /* 1920x1200 @ 60 Hz, 74.5 Khz hsync */
252 NULL
, 60, 1920, 1200, 5177, 128, 336, 1, 38, 208, 3,
253 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
254 FB_VMODE_NONINTERLACED
256 /* 1152x768, 60 Hz, PowerBook G4 Titanium I and II */
257 NULL
, 60, 1152, 768, 14047, 158, 26, 29, 3, 136, 6,
258 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
260 /* 1366x768, 60 Hz, 47.403 kHz hsync, WXGA 16:9 aspect ratio */
261 NULL
, 60, 1366, 768, 13806, 120, 10, 14, 3, 32, 5,
262 0, FB_VMODE_NONINTERLACED
264 /* 1280x800, 60 Hz, 47.403 kHz hsync, WXGA 16:10 aspect ratio */
265 NULL
, 60, 1280, 800, 12048, 200, 64, 24, 1, 136, 3,
266 0, FB_VMODE_NONINTERLACED
268 /* 720x576i @ 50 Hz, 15.625 kHz hsync (PAL RGB) */
269 NULL
, 50, 720, 576, 74074, 64, 16, 39, 5, 64, 5,
270 0, FB_VMODE_INTERLACED
272 /* 800x520i @ 50 Hz, 15.625 kHz hsync (PAL RGB) */
273 NULL
, 50, 800, 520, 58823, 144, 64, 72, 28, 80, 5,
274 0, FB_VMODE_INTERLACED
278 #ifdef CONFIG_FB_MODE_HELPERS
279 const struct fb_videomode vesa_modes
[] = {
280 /* 0 640x350-85 VESA */
281 { NULL
, 85, 640, 350, 31746, 96, 32, 60, 32, 64, 3,
282 FB_SYNC_HOR_HIGH_ACT
, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
283 /* 1 640x400-85 VESA */
284 { NULL
, 85, 640, 400, 31746, 96, 32, 41, 01, 64, 3,
285 FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
286 /* 2 720x400-85 VESA */
287 { NULL
, 85, 721, 400, 28169, 108, 36, 42, 01, 72, 3,
288 FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
289 /* 3 640x480-60 VESA */
290 { NULL
, 60, 640, 480, 39682, 48, 16, 33, 10, 96, 2,
291 0, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
292 /* 4 640x480-72 VESA */
293 { NULL
, 72, 640, 480, 31746, 128, 24, 29, 9, 40, 2,
294 0, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
295 /* 5 640x480-75 VESA */
296 { NULL
, 75, 640, 480, 31746, 120, 16, 16, 01, 64, 3,
297 0, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
298 /* 6 640x480-85 VESA */
299 { NULL
, 85, 640, 480, 27777, 80, 56, 25, 01, 56, 3,
300 0, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
301 /* 7 800x600-56 VESA */
302 { NULL
, 56, 800, 600, 27777, 128, 24, 22, 01, 72, 2,
303 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
304 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
305 /* 8 800x600-60 VESA */
306 { NULL
, 60, 800, 600, 25000, 88, 40, 23, 01, 128, 4,
307 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
308 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
309 /* 9 800x600-72 VESA */
310 { NULL
, 72, 800, 600, 20000, 64, 56, 23, 37, 120, 6,
311 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
312 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
313 /* 10 800x600-75 VESA */
314 { NULL
, 75, 800, 600, 20202, 160, 16, 21, 01, 80, 3,
315 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
316 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
317 /* 11 800x600-85 VESA */
318 { NULL
, 85, 800, 600, 17761, 152, 32, 27, 01, 64, 3,
319 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
320 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
321 /* 12 1024x768i-43 VESA */
322 { NULL
, 43, 1024, 768, 22271, 56, 8, 41, 0, 176, 8,
323 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
324 FB_VMODE_INTERLACED
, FB_MODE_IS_VESA
},
325 /* 13 1024x768-60 VESA */
326 { NULL
, 60, 1024, 768, 15384, 160, 24, 29, 3, 136, 6,
327 0, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
328 /* 14 1024x768-70 VESA */
329 { NULL
, 70, 1024, 768, 13333, 144, 24, 29, 3, 136, 6,
330 0, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
331 /* 15 1024x768-75 VESA */
332 { NULL
, 75, 1024, 768, 12690, 176, 16, 28, 1, 96, 3,
333 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
334 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
335 /* 16 1024x768-85 VESA */
336 { NULL
, 85, 1024, 768, 10582, 208, 48, 36, 1, 96, 3,
337 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
338 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
339 /* 17 1152x864-75 VESA */
340 { NULL
, 75, 1152, 864, 9259, 256, 64, 32, 1, 128, 3,
341 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
342 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
343 /* 18 1280x960-60 VESA */
344 { NULL
, 60, 1280, 960, 9259, 312, 96, 36, 1, 112, 3,
345 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
346 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
347 /* 19 1280x960-85 VESA */
348 { NULL
, 85, 1280, 960, 6734, 224, 64, 47, 1, 160, 3,
349 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
350 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
351 /* 20 1280x1024-60 VESA */
352 { NULL
, 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3,
353 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
354 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
355 /* 21 1280x1024-75 VESA */
356 { NULL
, 75, 1280, 1024, 7407, 248, 16, 38, 1, 144, 3,
357 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
358 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
359 /* 22 1280x1024-85 VESA */
360 { NULL
, 85, 1280, 1024, 6349, 224, 64, 44, 1, 160, 3,
361 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
362 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
363 /* 23 1600x1200-60 VESA */
364 { NULL
, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3,
365 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
366 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
367 /* 24 1600x1200-65 VESA */
368 { NULL
, 65, 1600, 1200, 5698, 304, 64, 46, 1, 192, 3,
369 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
370 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
371 /* 25 1600x1200-70 VESA */
372 { NULL
, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3,
373 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
374 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
375 /* 26 1600x1200-75 VESA */
376 { NULL
, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3,
377 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
378 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
379 /* 27 1600x1200-85 VESA */
380 { NULL
, 85, 1600, 1200, 4357, 304, 64, 46, 1, 192, 3,
381 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
382 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
383 /* 28 1792x1344-60 VESA */
384 { NULL
, 60, 1792, 1344, 4882, 328, 128, 46, 1, 200, 3,
385 FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
386 /* 29 1792x1344-75 VESA */
387 { NULL
, 75, 1792, 1344, 3831, 352, 96, 69, 1, 216, 3,
388 FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
389 /* 30 1856x1392-60 VESA */
390 { NULL
, 60, 1856, 1392, 4580, 352, 96, 43, 1, 224, 3,
391 FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
392 /* 31 1856x1392-75 VESA */
393 { NULL
, 75, 1856, 1392, 3472, 352, 128, 104, 1, 224, 3,
394 FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
395 /* 32 1920x1440-60 VESA */
396 { NULL
, 60, 1920, 1440, 4273, 344, 128, 56, 1, 200, 3,
397 FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
398 /* 33 1920x1440-75 VESA */
399 { NULL
, 75, 1920, 1440, 3367, 352, 144, 56, 1, 224, 3,
400 FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
402 EXPORT_SYMBOL(vesa_modes
);
403 #endif /* CONFIG_FB_MODE_HELPERS */
405 static int my_atoi(const char *name
)
412 val
= 10*val
+(*name
-'0');
421 * fb_try_mode - test a video mode
422 * @var: frame buffer user defined part of display
423 * @info: frame buffer info structure
424 * @mode: frame buffer video mode structure
425 * @bpp: color depth in bits per pixel
427 * Tries a video mode to test it's validity for device @info.
429 * Returns 1 on success.
433 static int fb_try_mode(struct fb_var_screeninfo
*var
, struct fb_info
*info
,
434 const struct fb_videomode
*mode
, unsigned int bpp
)
438 DPRINTK("Trying mode %s %dx%d-%d@%d\n", mode
->name
? mode
->name
: "noname",
439 mode
->xres
, mode
->yres
, bpp
, mode
->refresh
);
440 var
->xres
= mode
->xres
;
441 var
->yres
= mode
->yres
;
442 var
->xres_virtual
= mode
->xres
;
443 var
->yres_virtual
= mode
->yres
;
446 var
->bits_per_pixel
= bpp
;
447 var
->activate
|= FB_ACTIVATE_TEST
;
448 var
->pixclock
= mode
->pixclock
;
449 var
->left_margin
= mode
->left_margin
;
450 var
->right_margin
= mode
->right_margin
;
451 var
->upper_margin
= mode
->upper_margin
;
452 var
->lower_margin
= mode
->lower_margin
;
453 var
->hsync_len
= mode
->hsync_len
;
454 var
->vsync_len
= mode
->vsync_len
;
455 var
->sync
= mode
->sync
;
456 var
->vmode
= mode
->vmode
;
457 if (info
->fbops
->fb_check_var
)
458 err
= info
->fbops
->fb_check_var(var
, info
);
459 var
->activate
&= ~FB_ACTIVATE_TEST
;
464 * fb_find_mode - finds a valid video mode
465 * @var: frame buffer user defined part of display
466 * @info: frame buffer info structure
467 * @mode_option: string video mode to find
468 * @db: video mode database
469 * @dbsize: size of @db
470 * @default_mode: default video mode to fall back to
471 * @default_bpp: default color depth in bits per pixel
473 * Finds a suitable video mode, starting with the specified mode
474 * in @mode_option with fallback to @default_mode. If
475 * @default_mode fails, all modes in the video mode database will
478 * Valid mode specifiers for @mode_option:
480 * <xres>x<yres>[M][R][-<bpp>][@<refresh>][i][m] or
481 * <name>[-<bpp>][@<refresh>]
483 * with <xres>, <yres>, <bpp> and <refresh> decimal numbers and
486 * If 'M' is present after yres (and before refresh/bpp if present),
487 * the function will compute the timings using VESA(tm) Coordinated
488 * Video Timings (CVT). If 'R' is present after 'M', will compute with
489 * reduced blanking (for flatpanels). If 'i' is present, compute
490 * interlaced mode. If 'm' is present, add margins equal to 1.8%
491 * of xres rounded down to 8 pixels, and 1.8% of yres. The char
492 * 'i' and 'm' must be after 'M' and 'R'. Example:
494 * 1024x768MR-8@60m - Reduced blank with margins at 60Hz.
496 * NOTE: The passed struct @var is _not_ cleared! This allows you
497 * to supply values for e.g. the grayscale and accel_flags fields.
499 * Returns zero for failure, 1 if using specified @mode_option,
500 * 2 if using specified @mode_option with an ignored refresh rate,
501 * 3 if default mode is used, 4 if fall back to any valid mode.
505 int fb_find_mode(struct fb_var_screeninfo
*var
,
506 struct fb_info
*info
, const char *mode_option
,
507 const struct fb_videomode
*db
, unsigned int dbsize
,
508 const struct fb_videomode
*default_mode
,
509 unsigned int default_bpp
)
513 /* Set up defaults */
516 dbsize
= ARRAY_SIZE(modedb
);
520 default_mode
= &db
[0];
525 /* Did the user specify a video mode? */
527 mode_option
= fb_mode_option
;
529 const char *name
= mode_option
;
530 unsigned int namelen
= strlen(name
);
531 int res_specified
= 0, bpp_specified
= 0, refresh_specified
= 0;
532 unsigned int xres
= 0, yres
= 0, bpp
= default_bpp
, refresh
= 0;
533 int yres_specified
= 0, cvt
= 0, rb
= 0, interlace
= 0, margins
= 0;
534 u32 best
, diff
, tdiff
;
536 for (i
= namelen
-1; i
>= 0; i
--) {
540 if (!refresh_specified
&& !bpp_specified
&&
542 refresh
= my_atoi(&name
[i
+1]);
543 refresh_specified
= 1;
551 if (!bpp_specified
&& !yres_specified
) {
552 bpp
= my_atoi(&name
[i
+1]);
560 if (!yres_specified
) {
561 yres
= my_atoi(&name
[i
+1]);
588 if (i
< 0 && yres_specified
) {
589 xres
= my_atoi(name
);
594 struct fb_videomode cvt_mode
;
597 DPRINTK("CVT mode %dx%d@%dHz%s%s%s\n", xres
, yres
,
598 (refresh
) ? refresh
: 60, (rb
) ? " reduced blanking" :
599 "", (margins
) ? " with margins" : "", (interlace
) ?
602 memset(&cvt_mode
, 0, sizeof(cvt_mode
));
603 cvt_mode
.xres
= xres
;
604 cvt_mode
.yres
= yres
;
605 cvt_mode
.refresh
= (refresh
) ? refresh
: 60;
608 cvt_mode
.vmode
|= FB_VMODE_INTERLACED
;
610 cvt_mode
.vmode
&= ~FB_VMODE_INTERLACED
;
612 ret
= fb_find_mode_cvt(&cvt_mode
, margins
, rb
);
614 if (!ret
&& !fb_try_mode(var
, info
, &cvt_mode
, bpp
)) {
615 DPRINTK("modedb CVT: CVT mode ok\n");
619 DPRINTK("CVT mode invalid, getting mode from database\n");
622 DPRINTK("Trying specified video mode%s %ix%i\n",
623 refresh_specified
? "" : " (ignoring refresh rate)", xres
, yres
);
625 if (!refresh_specified
) {
627 * If the caller has provided a custom mode database and a
628 * valid monspecs structure, we look for the mode with the
629 * highest refresh rate. Otherwise we play it safe it and
630 * try to find a mode with a refresh rate closest to the
634 info
->monspecs
.vfmin
&& info
->monspecs
.vfmax
&&
635 info
->monspecs
.hfmin
&& info
->monspecs
.hfmax
&&
636 info
->monspecs
.dclkmax
) {
645 for (i
= 0; i
< dbsize
; i
++) {
646 if ((name_matches(db
[i
], name
, namelen
) ||
647 (res_specified
&& res_matches(db
[i
], xres
, yres
))) &&
648 !fb_try_mode(var
, info
, &db
[i
], bpp
)) {
649 if (refresh_specified
&& db
[i
].refresh
== refresh
) {
652 if (abs(db
[i
].refresh
- refresh
) < diff
) {
653 diff
= abs(db
[i
].refresh
- refresh
);
660 fb_try_mode(var
, info
, &db
[best
], bpp
);
661 return (refresh_specified
) ? 2 : 1;
664 diff
= 2 * (xres
+ yres
);
666 DPRINTK("Trying best-fit modes\n");
667 for (i
= 0; i
< dbsize
; i
++) {
668 DPRINTK("Trying %ix%i\n", db
[i
].xres
, db
[i
].yres
);
669 if (!fb_try_mode(var
, info
, &db
[i
], bpp
)) {
670 tdiff
= abs(db
[i
].xres
- xres
) +
671 abs(db
[i
].yres
- yres
);
674 * Penalize modes with resolutions smaller
677 if (xres
> db
[i
].xres
|| yres
> db
[i
].yres
)
678 tdiff
+= xres
+ yres
;
687 fb_try_mode(var
, info
, &db
[best
], bpp
);
692 DPRINTK("Trying default video mode\n");
693 if (!fb_try_mode(var
, info
, default_mode
, default_bpp
))
696 DPRINTK("Trying all modes\n");
697 for (i
= 0; i
< dbsize
; i
++)
698 if (!fb_try_mode(var
, info
, &db
[i
], default_bpp
))
701 DPRINTK("No valid mode found\n");
706 * fb_var_to_videomode - convert fb_var_screeninfo to fb_videomode
707 * @mode: pointer to struct fb_videomode
708 * @var: pointer to struct fb_var_screeninfo
710 void fb_var_to_videomode(struct fb_videomode
*mode
,
711 const struct fb_var_screeninfo
*var
)
713 u32 pixclock
, hfreq
, htotal
, vtotal
;
716 mode
->xres
= var
->xres
;
717 mode
->yres
= var
->yres
;
718 mode
->pixclock
= var
->pixclock
;
719 mode
->hsync_len
= var
->hsync_len
;
720 mode
->vsync_len
= var
->vsync_len
;
721 mode
->left_margin
= var
->left_margin
;
722 mode
->right_margin
= var
->right_margin
;
723 mode
->upper_margin
= var
->upper_margin
;
724 mode
->lower_margin
= var
->lower_margin
;
725 mode
->sync
= var
->sync
;
726 mode
->vmode
= var
->vmode
& FB_VMODE_MASK
;
727 mode
->flag
= FB_MODE_IS_FROM_VAR
;
733 pixclock
= PICOS2KHZ(var
->pixclock
) * 1000;
735 htotal
= var
->xres
+ var
->right_margin
+ var
->hsync_len
+
737 vtotal
= var
->yres
+ var
->lower_margin
+ var
->vsync_len
+
740 if (var
->vmode
& FB_VMODE_INTERLACED
)
742 if (var
->vmode
& FB_VMODE_DOUBLE
)
745 hfreq
= pixclock
/htotal
;
746 mode
->refresh
= hfreq
/vtotal
;
750 * fb_videomode_to_var - convert fb_videomode to fb_var_screeninfo
751 * @var: pointer to struct fb_var_screeninfo
752 * @mode: pointer to struct fb_videomode
754 void fb_videomode_to_var(struct fb_var_screeninfo
*var
,
755 const struct fb_videomode
*mode
)
757 var
->xres
= mode
->xres
;
758 var
->yres
= mode
->yres
;
759 var
->xres_virtual
= mode
->xres
;
760 var
->yres_virtual
= mode
->yres
;
763 var
->pixclock
= mode
->pixclock
;
764 var
->left_margin
= mode
->left_margin
;
765 var
->right_margin
= mode
->right_margin
;
766 var
->upper_margin
= mode
->upper_margin
;
767 var
->lower_margin
= mode
->lower_margin
;
768 var
->hsync_len
= mode
->hsync_len
;
769 var
->vsync_len
= mode
->vsync_len
;
770 var
->sync
= mode
->sync
;
771 var
->vmode
= mode
->vmode
& FB_VMODE_MASK
;
775 * fb_mode_is_equal - compare 2 videomodes
776 * @mode1: first videomode
777 * @mode2: second videomode
780 * 1 if equal, 0 if not
782 int fb_mode_is_equal(const struct fb_videomode
*mode1
,
783 const struct fb_videomode
*mode2
)
785 return (mode1
->xres
== mode2
->xres
&&
786 mode1
->yres
== mode2
->yres
&&
787 mode1
->pixclock
== mode2
->pixclock
&&
788 mode1
->hsync_len
== mode2
->hsync_len
&&
789 mode1
->vsync_len
== mode2
->vsync_len
&&
790 mode1
->left_margin
== mode2
->left_margin
&&
791 mode1
->right_margin
== mode2
->right_margin
&&
792 mode1
->upper_margin
== mode2
->upper_margin
&&
793 mode1
->lower_margin
== mode2
->lower_margin
&&
794 mode1
->sync
== mode2
->sync
&&
795 mode1
->vmode
== mode2
->vmode
);
799 * fb_find_best_mode - find best matching videomode
800 * @var: pointer to struct fb_var_screeninfo
801 * @head: pointer to struct list_head of modelist
804 * struct fb_videomode, NULL if none found
807 * This function assumes that all modelist entries in
808 * info->modelist are valid.
811 * Finds best matching videomode which has an equal or greater dimension than
812 * var->xres and var->yres. If more than 1 videomode is found, will return
813 * the videomode with the highest refresh rate
815 const struct fb_videomode
*fb_find_best_mode(const struct fb_var_screeninfo
*var
,
816 struct list_head
*head
)
818 struct list_head
*pos
;
819 struct fb_modelist
*modelist
;
820 struct fb_videomode
*mode
, *best
= NULL
;
823 list_for_each(pos
, head
) {
826 modelist
= list_entry(pos
, struct fb_modelist
, list
);
827 mode
= &modelist
->mode
;
829 if (mode
->xres
>= var
->xres
&& mode
->yres
>= var
->yres
) {
830 d
= (mode
->xres
- var
->xres
) +
831 (mode
->yres
- var
->yres
);
835 } else if (diff
== d
&& best
&&
836 mode
->refresh
> best
->refresh
)
844 * fb_find_nearest_mode - find closest videomode
846 * @mode: pointer to struct fb_videomode
847 * @head: pointer to modelist
849 * Finds best matching videomode, smaller or greater in dimension.
850 * If more than 1 videomode is found, will return the videomode with
851 * the closest refresh rate.
853 const struct fb_videomode
*fb_find_nearest_mode(const struct fb_videomode
*mode
,
854 struct list_head
*head
)
856 struct list_head
*pos
;
857 struct fb_modelist
*modelist
;
858 struct fb_videomode
*cmode
, *best
= NULL
;
859 u32 diff
= -1, diff_refresh
= -1;
861 list_for_each(pos
, head
) {
864 modelist
= list_entry(pos
, struct fb_modelist
, list
);
865 cmode
= &modelist
->mode
;
867 d
= abs(cmode
->xres
- mode
->xres
) +
868 abs(cmode
->yres
- mode
->yres
);
872 } else if (diff
== d
) {
873 d
= abs(cmode
->refresh
- mode
->refresh
);
874 if (diff_refresh
> d
) {
885 * fb_match_mode - find a videomode which exactly matches the timings in var
886 * @var: pointer to struct fb_var_screeninfo
887 * @head: pointer to struct list_head of modelist
890 * struct fb_videomode, NULL if none found
892 const struct fb_videomode
*fb_match_mode(const struct fb_var_screeninfo
*var
,
893 struct list_head
*head
)
895 struct list_head
*pos
;
896 struct fb_modelist
*modelist
;
897 struct fb_videomode
*m
, mode
;
899 fb_var_to_videomode(&mode
, var
);
900 list_for_each(pos
, head
) {
901 modelist
= list_entry(pos
, struct fb_modelist
, list
);
903 if (fb_mode_is_equal(m
, &mode
))
910 * fb_add_videomode: adds videomode entry to modelist
911 * @mode: videomode to add
912 * @head: struct list_head of modelist
915 * Will only add unmatched mode entries
917 int fb_add_videomode(const struct fb_videomode
*mode
, struct list_head
*head
)
919 struct list_head
*pos
;
920 struct fb_modelist
*modelist
;
921 struct fb_videomode
*m
;
924 list_for_each(pos
, head
) {
925 modelist
= list_entry(pos
, struct fb_modelist
, list
);
927 if (fb_mode_is_equal(m
, mode
)) {
933 modelist
= kmalloc(sizeof(struct fb_modelist
),
938 modelist
->mode
= *mode
;
939 list_add(&modelist
->list
, head
);
945 * fb_delete_videomode: removed videomode entry from modelist
946 * @mode: videomode to remove
947 * @head: struct list_head of modelist
950 * Will remove all matching mode entries
952 void fb_delete_videomode(const struct fb_videomode
*mode
,
953 struct list_head
*head
)
955 struct list_head
*pos
, *n
;
956 struct fb_modelist
*modelist
;
957 struct fb_videomode
*m
;
959 list_for_each_safe(pos
, n
, head
) {
960 modelist
= list_entry(pos
, struct fb_modelist
, list
);
962 if (fb_mode_is_equal(m
, mode
)) {
970 * fb_destroy_modelist: destroy modelist
971 * @head: struct list_head of modelist
973 void fb_destroy_modelist(struct list_head
*head
)
975 struct list_head
*pos
, *n
;
977 list_for_each_safe(pos
, n
, head
) {
982 EXPORT_SYMBOL_GPL(fb_destroy_modelist
);
985 * fb_videomode_to_modelist: convert mode array to mode list
986 * @modedb: array of struct fb_videomode
987 * @num: number of entries in array
988 * @head: struct list_head of modelist
990 void fb_videomode_to_modelist(const struct fb_videomode
*modedb
, int num
,
991 struct list_head
*head
)
995 INIT_LIST_HEAD(head
);
997 for (i
= 0; i
< num
; i
++) {
998 if (fb_add_videomode(&modedb
[i
], head
))
1003 const struct fb_videomode
*fb_find_best_display(const struct fb_monspecs
*specs
,
1004 struct list_head
*head
)
1006 struct list_head
*pos
;
1007 struct fb_modelist
*modelist
;
1008 const struct fb_videomode
*m
, *m1
= NULL
, *md
= NULL
, *best
= NULL
;
1011 if (!head
->prev
|| !head
->next
|| list_empty(head
))
1014 /* get the first detailed mode and the very first mode */
1015 list_for_each(pos
, head
) {
1016 modelist
= list_entry(pos
, struct fb_modelist
, list
);
1017 m
= &modelist
->mode
;
1024 if (m
->flag
& FB_MODE_IS_FIRST
) {
1030 /* first detailed timing is preferred */
1031 if (specs
->misc
& FB_MISC_1ST_DETAIL
) {
1036 /* find best mode based on display width and height */
1037 if (specs
->max_x
&& specs
->max_y
) {
1038 struct fb_var_screeninfo var
;
1040 memset(&var
, 0, sizeof(struct fb_var_screeninfo
));
1041 var
.xres
= (specs
->max_x
* 7200)/254;
1042 var
.yres
= (specs
->max_y
* 7200)/254;
1043 m
= fb_find_best_mode(&var
, head
);
1050 /* use first detailed mode */
1056 /* last resort, use the very first mode */
1061 EXPORT_SYMBOL(fb_find_best_display
);
1063 EXPORT_SYMBOL(fb_videomode_to_var
);
1064 EXPORT_SYMBOL(fb_var_to_videomode
);
1065 EXPORT_SYMBOL(fb_mode_is_equal
);
1066 EXPORT_SYMBOL(fb_add_videomode
);
1067 EXPORT_SYMBOL(fb_match_mode
);
1068 EXPORT_SYMBOL(fb_find_best_mode
);
1069 EXPORT_SYMBOL(fb_find_nearest_mode
);
1070 EXPORT_SYMBOL(fb_videomode_to_modelist
);
1071 EXPORT_SYMBOL(fb_find_mode
);
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