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
270 #ifdef CONFIG_FB_MODE_HELPERS
271 const struct fb_videomode vesa_modes[] = {
272 /* 0 640x350-85 VESA */
273 { NULL, 85, 640, 350, 31746, 96, 32, 60, 32, 64, 3,
274 FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA},
275 /* 1 640x400-85 VESA */
276 { NULL, 85, 640, 400, 31746, 96, 32, 41, 01, 64, 3,
277 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
278 /* 2 720x400-85 VESA */
279 { NULL, 85, 721, 400, 28169, 108, 36, 42, 01, 72, 3,
280 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
281 /* 3 640x480-60 VESA */
282 { NULL, 60, 640, 480, 39682, 48, 16, 33, 10, 96, 2,
283 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
284 /* 4 640x480-72 VESA */
285 { NULL, 72, 640, 480, 31746, 128, 24, 29, 9, 40, 2,
286 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
287 /* 5 640x480-75 VESA */
288 { NULL, 75, 640, 480, 31746, 120, 16, 16, 01, 64, 3,
289 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
290 /* 6 640x480-85 VESA */
291 { NULL, 85, 640, 480, 27777, 80, 56, 25, 01, 56, 3,
292 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
293 /* 7 800x600-56 VESA */
294 { NULL, 56, 800, 600, 27777, 128, 24, 22, 01, 72, 2,
295 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
296 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
297 /* 8 800x600-60 VESA */
298 { NULL, 60, 800, 600, 25000, 88, 40, 23, 01, 128, 4,
299 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
300 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
301 /* 9 800x600-72 VESA */
302 { NULL, 72, 800, 600, 20000, 64, 56, 23, 37, 120, 6,
303 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
304 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
305 /* 10 800x600-75 VESA */
306 { NULL, 75, 800, 600, 20202, 160, 16, 21, 01, 80, 3,
307 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
308 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
309 /* 11 800x600-85 VESA */
310 { NULL, 85, 800, 600, 17761, 152, 32, 27, 01, 64, 3,
311 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
312 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
313 /* 12 1024x768i-43 VESA */
314 { NULL, 43, 1024, 768, 22271, 56, 8, 41, 0, 176, 8,
315 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
316 FB_VMODE_INTERLACED, FB_MODE_IS_VESA },
317 /* 13 1024x768-60 VESA */
318 { NULL, 60, 1024, 768, 15384, 160, 24, 29, 3, 136, 6,
319 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
320 /* 14 1024x768-70 VESA */
321 { NULL, 70, 1024, 768, 13333, 144, 24, 29, 3, 136, 6,
322 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
323 /* 15 1024x768-75 VESA */
324 { NULL, 75, 1024, 768, 12690, 176, 16, 28, 1, 96, 3,
325 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
326 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
327 /* 16 1024x768-85 VESA */
328 { NULL, 85, 1024, 768, 10582, 208, 48, 36, 1, 96, 3,
329 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
330 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
331 /* 17 1152x864-75 VESA */
332 { NULL, 75, 1153, 864, 9259, 256, 64, 32, 1, 128, 3,
333 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
334 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
335 /* 18 1280x960-60 VESA */
336 { NULL, 60, 1280, 960, 9259, 312, 96, 36, 1, 112, 3,
337 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
338 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
339 /* 19 1280x960-85 VESA */
340 { NULL, 85, 1280, 960, 6734, 224, 64, 47, 1, 160, 3,
341 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
342 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
343 /* 20 1280x1024-60 VESA */
344 { NULL, 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3,
345 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
346 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
347 /* 21 1280x1024-75 VESA */
348 { NULL, 75, 1280, 1024, 7407, 248, 16, 38, 1, 144, 3,
349 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
350 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
351 /* 22 1280x1024-85 VESA */
352 { NULL, 85, 1280, 1024, 6349, 224, 64, 44, 1, 160, 3,
353 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
354 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
355 /* 23 1600x1200-60 VESA */
356 { NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3,
357 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
358 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
359 /* 24 1600x1200-65 VESA */
360 { NULL, 65, 1600, 1200, 5698, 304, 64, 46, 1, 192, 3,
361 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
362 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
363 /* 25 1600x1200-70 VESA */
364 { NULL, 70, 1600, 1200, 5291, 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 /* 26 1600x1200-75 VESA */
368 { NULL, 75, 1600, 1200, 4938, 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 /* 27 1600x1200-85 VESA */
372 { NULL, 85, 1600, 1200, 4357, 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 /* 28 1792x1344-60 VESA */
376 { NULL, 60, 1792, 1344, 4882, 328, 128, 46, 1, 200, 3,
377 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
378 /* 29 1792x1344-75 VESA */
379 { NULL, 75, 1792, 1344, 3831, 352, 96, 69, 1, 216, 3,
380 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
381 /* 30 1856x1392-60 VESA */
382 { NULL, 60, 1856, 1392, 4580, 352, 96, 43, 1, 224, 3,
383 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
384 /* 31 1856x1392-75 VESA */
385 { NULL, 75, 1856, 1392, 3472, 352, 128, 104, 1, 224, 3,
386 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
387 /* 32 1920x1440-60 VESA */
388 { NULL, 60, 1920, 1440, 4273, 344, 128, 56, 1, 200, 3,
389 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
390 /* 33 1920x1440-75 VESA */
391 { NULL, 75, 1920, 1440, 3367, 352, 144, 56, 1, 224, 3,
392 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
394 EXPORT_SYMBOL(vesa_modes);
395 #endif /* CONFIG_FB_MODE_HELPERS */
397 static int my_atoi(const char *name)
404 val = 10*val+(*name-'0');
413 * fb_try_mode - test a video mode
414 * @var: frame buffer user defined part of display
415 * @info: frame buffer info structure
416 * @mode: frame buffer video mode structure
417 * @bpp: color depth in bits per pixel
419 * Tries a video mode to test it's validity for device @info.
421 * Returns 1 on success.
425 static int fb_try_mode(struct fb_var_screeninfo *var, struct fb_info *info,
426 const struct fb_videomode *mode, unsigned int bpp)
430 DPRINTK("Trying mode %s %dx%d-%d@%d\n", mode->name ? mode->name : "noname",
431 mode->xres, mode->yres, bpp, mode->refresh);
432 var->xres = mode->xres;
433 var->yres = mode->yres;
434 var->xres_virtual = mode->xres;
435 var->yres_virtual = mode->yres;
438 var->bits_per_pixel = bpp;
439 var->activate |= FB_ACTIVATE_TEST;
440 var->pixclock = mode->pixclock;
441 var->left_margin = mode->left_margin;
442 var->right_margin = mode->right_margin;
443 var->upper_margin = mode->upper_margin;
444 var->lower_margin = mode->lower_margin;
445 var->hsync_len = mode->hsync_len;
446 var->vsync_len = mode->vsync_len;
447 var->sync = mode->sync;
448 var->vmode = mode->vmode;
449 if (info->fbops->fb_check_var)
450 err = info->fbops->fb_check_var(var, info);
451 var->activate &= ~FB_ACTIVATE_TEST;
456 * fb_find_mode - finds a valid video mode
457 * @var: frame buffer user defined part of display
458 * @info: frame buffer info structure
459 * @mode_option: string video mode to find
460 * @db: video mode database
461 * @dbsize: size of @db
462 * @default_mode: default video mode to fall back to
463 * @default_bpp: default color depth in bits per pixel
465 * Finds a suitable video mode, starting with the specified mode
466 * in @mode_option with fallback to @default_mode. If
467 * @default_mode fails, all modes in the video mode database will
470 * Valid mode specifiers for @mode_option:
472 * <xres>x<yres>[M][R][-<bpp>][@<refresh>][i][m] or
473 * <name>[-<bpp>][@<refresh>]
475 * with <xres>, <yres>, <bpp> and <refresh> decimal numbers and
478 * If 'M' is present after yres (and before refresh/bpp if present),
479 * the function will compute the timings using VESA(tm) Coordinated
480 * Video Timings (CVT). If 'R' is present after 'M', will compute with
481 * reduced blanking (for flatpanels). If 'i' is present, compute
482 * interlaced mode. If 'm' is present, add margins equal to 1.8%
483 * of xres rounded down to 8 pixels, and 1.8% of yres. The char
484 * 'i' and 'm' must be after 'M' and 'R'. Example:
486 * 1024x768MR-8@60m - Reduced blank with margins at 60Hz.
488 * NOTE: The passed struct @var is _not_ cleared! This allows you
489 * to supply values for e.g. the grayscale and accel_flags fields.
491 * Returns zero for failure, 1 if using specified @mode_option,
492 * 2 if using specified @mode_option with an ignored refresh rate,
493 * 3 if default mode is used, 4 if fall back to any valid mode.
497 int fb_find_mode(struct fb_var_screeninfo *var,
498 struct fb_info *info, const char *mode_option,
499 const struct fb_videomode *db, unsigned int dbsize,
500 const struct fb_videomode *default_mode,
501 unsigned int default_bpp)
505 /* Set up defaults */
508 dbsize = ARRAY_SIZE(modedb);
512 default_mode = &db[0];
517 /* Did the user specify a video mode? */
519 mode_option = fb_mode_option;
521 const char *name = mode_option;
522 unsigned int namelen = strlen(name);
523 int res_specified = 0, bpp_specified = 0, refresh_specified = 0;
524 unsigned int xres = 0, yres = 0, bpp = default_bpp, refresh = 0;
525 int yres_specified = 0, cvt = 0, rb = 0, interlace = 0, margins = 0;
526 u32 best, diff, tdiff;
528 for (i = namelen-1; i >= 0; i--) {
532 if (!refresh_specified && !bpp_specified &&
534 refresh = my_atoi(&name[i+1]);
535 refresh_specified = 1;
543 if (!bpp_specified && !yres_specified) {
544 bpp = my_atoi(&name[i+1]);
552 if (!yres_specified) {
553 yres = my_atoi(&name[i+1]);
580 if (i < 0 && yres_specified) {
581 xres = my_atoi(name);
586 struct fb_videomode cvt_mode;
589 DPRINTK("CVT mode %dx%d@%dHz%s%s%s\n", xres, yres,
590 (refresh) ? refresh : 60, (rb) ? " reduced blanking" :
591 "", (margins) ? " with margins" : "", (interlace) ?
594 memset(&cvt_mode, 0, sizeof(cvt_mode));
595 cvt_mode.xres = xres;
596 cvt_mode.yres = yres;
597 cvt_mode.refresh = (refresh) ? refresh : 60;
600 cvt_mode.vmode |= FB_VMODE_INTERLACED;
602 cvt_mode.vmode &= ~FB_VMODE_INTERLACED;
604 ret = fb_find_mode_cvt(&cvt_mode, margins, rb);
606 if (!ret && !fb_try_mode(var, info, &cvt_mode, bpp)) {
607 DPRINTK("modedb CVT: CVT mode ok\n");
611 DPRINTK("CVT mode invalid, getting mode from database\n");
614 DPRINTK("Trying specified video mode%s %ix%i\n",
615 refresh_specified ? "" : " (ignoring refresh rate)", xres, yres);
617 if (!refresh_specified) {
619 * If the caller has provided a custom mode database and a
620 * valid monspecs structure, we look for the mode with the
621 * highest refresh rate. Otherwise we play it safe it and
622 * try to find a mode with a refresh rate closest to the
626 info->monspecs.vfmin && info->monspecs.vfmax &&
627 info->monspecs.hfmin && info->monspecs.hfmax &&
628 info->monspecs.dclkmax) {
637 for (i = 0; i < dbsize; i++) {
638 if ((name_matches(db[i], name, namelen) ||
639 (res_specified && res_matches(db[i], xres, yres))) &&
640 !fb_try_mode(var, info, &db[i], bpp)) {
641 if (refresh_specified && db[i].refresh == refresh) {
644 if (abs(db[i].refresh - refresh) < diff) {
645 diff = abs(db[i].refresh - refresh);
652 fb_try_mode(var, info, &db[best], bpp);
653 return (refresh_specified) ? 2 : 1;
656 diff = 2 * (xres + yres);
658 DPRINTK("Trying best-fit modes\n");
659 for (i = 0; i < dbsize; i++) {
660 DPRINTK("Trying %ix%i\n", db[i].xres, db[i].yres);
661 if (!fb_try_mode(var, info, &db[i], bpp)) {
662 tdiff = abs(db[i].xres - xres) +
663 abs(db[i].yres - yres);
666 * Penalize modes with resolutions smaller
669 if (xres > db[i].xres || yres > db[i].yres)
670 tdiff += xres + yres;
679 fb_try_mode(var, info, &db[best], bpp);
684 DPRINTK("Trying default video mode\n");
685 if (!fb_try_mode(var, info, default_mode, default_bpp))
688 DPRINTK("Trying all modes\n");
689 for (i = 0; i < dbsize; i++)
690 if (!fb_try_mode(var, info, &db[i], default_bpp))
693 DPRINTK("No valid mode found\n");
698 * fb_var_to_videomode - convert fb_var_screeninfo to fb_videomode
699 * @mode: pointer to struct fb_videomode
700 * @var: pointer to struct fb_var_screeninfo
702 void fb_var_to_videomode(struct fb_videomode *mode,
703 const struct fb_var_screeninfo *var)
705 u32 pixclock, hfreq, htotal, vtotal;
708 mode->xres = var->xres;
709 mode->yres = var->yres;
710 mode->pixclock = var->pixclock;
711 mode->hsync_len = var->hsync_len;
712 mode->vsync_len = var->vsync_len;
713 mode->left_margin = var->left_margin;
714 mode->right_margin = var->right_margin;
715 mode->upper_margin = var->upper_margin;
716 mode->lower_margin = var->lower_margin;
717 mode->sync = var->sync;
718 mode->vmode = var->vmode & FB_VMODE_MASK;
719 mode->flag = FB_MODE_IS_FROM_VAR;
725 pixclock = PICOS2KHZ(var->pixclock) * 1000;
727 htotal = var->xres + var->right_margin + var->hsync_len +
729 vtotal = var->yres + var->lower_margin + var->vsync_len +
732 if (var->vmode & FB_VMODE_INTERLACED)
734 if (var->vmode & FB_VMODE_DOUBLE)
737 hfreq = pixclock/htotal;
738 mode->refresh = hfreq/vtotal;
742 * fb_videomode_to_var - convert fb_videomode to fb_var_screeninfo
743 * @var: pointer to struct fb_var_screeninfo
744 * @mode: pointer to struct fb_videomode
746 void fb_videomode_to_var(struct fb_var_screeninfo *var,
747 const struct fb_videomode *mode)
749 var->xres = mode->xres;
750 var->yres = mode->yres;
751 var->xres_virtual = mode->xres;
752 var->yres_virtual = mode->yres;
755 var->pixclock = mode->pixclock;
756 var->left_margin = mode->left_margin;
757 var->right_margin = mode->right_margin;
758 var->upper_margin = mode->upper_margin;
759 var->lower_margin = mode->lower_margin;
760 var->hsync_len = mode->hsync_len;
761 var->vsync_len = mode->vsync_len;
762 var->sync = mode->sync;
763 var->vmode = mode->vmode & FB_VMODE_MASK;
767 * fb_mode_is_equal - compare 2 videomodes
768 * @mode1: first videomode
769 * @mode2: second videomode
772 * 1 if equal, 0 if not
774 int fb_mode_is_equal(const struct fb_videomode *mode1,
775 const struct fb_videomode *mode2)
777 return (mode1->xres == mode2->xres &&
778 mode1->yres == mode2->yres &&
779 mode1->pixclock == mode2->pixclock &&
780 mode1->hsync_len == mode2->hsync_len &&
781 mode1->vsync_len == mode2->vsync_len &&
782 mode1->left_margin == mode2->left_margin &&
783 mode1->right_margin == mode2->right_margin &&
784 mode1->upper_margin == mode2->upper_margin &&
785 mode1->lower_margin == mode2->lower_margin &&
786 mode1->sync == mode2->sync &&
787 mode1->vmode == mode2->vmode);
791 * fb_find_best_mode - find best matching videomode
792 * @var: pointer to struct fb_var_screeninfo
793 * @head: pointer to struct list_head of modelist
796 * struct fb_videomode, NULL if none found
799 * This function assumes that all modelist entries in
800 * info->modelist are valid.
803 * Finds best matching videomode which has an equal or greater dimension than
804 * var->xres and var->yres. If more than 1 videomode is found, will return
805 * the videomode with the highest refresh rate
807 const struct fb_videomode *fb_find_best_mode(const struct fb_var_screeninfo *var,
808 struct list_head *head)
810 struct list_head *pos;
811 struct fb_modelist *modelist;
812 struct fb_videomode *mode, *best = NULL;
815 list_for_each(pos, head) {
818 modelist = list_entry(pos, struct fb_modelist, list);
819 mode = &modelist->mode;
821 if (mode->xres >= var->xres && mode->yres >= var->yres) {
822 d = (mode->xres - var->xres) +
823 (mode->yres - var->yres);
827 } else if (diff == d && best &&
828 mode->refresh > best->refresh)
836 * fb_find_nearest_mode - find closest videomode
838 * @mode: pointer to struct fb_videomode
839 * @head: pointer to modelist
841 * Finds best matching videomode, smaller or greater in dimension.
842 * If more than 1 videomode is found, will return the videomode with
843 * the closest refresh rate.
845 const struct fb_videomode *fb_find_nearest_mode(const struct fb_videomode *mode,
846 struct list_head *head)
848 struct list_head *pos;
849 struct fb_modelist *modelist;
850 struct fb_videomode *cmode, *best = NULL;
851 u32 diff = -1, diff_refresh = -1;
853 list_for_each(pos, head) {
856 modelist = list_entry(pos, struct fb_modelist, list);
857 cmode = &modelist->mode;
859 d = abs(cmode->xres - mode->xres) +
860 abs(cmode->yres - mode->yres);
864 } else if (diff == d) {
865 d = abs(cmode->refresh - mode->refresh);
866 if (diff_refresh > d) {
877 * fb_match_mode - find a videomode which exactly matches the timings in var
878 * @var: pointer to struct fb_var_screeninfo
879 * @head: pointer to struct list_head of modelist
882 * struct fb_videomode, NULL if none found
884 const struct fb_videomode *fb_match_mode(const struct fb_var_screeninfo *var,
885 struct list_head *head)
887 struct list_head *pos;
888 struct fb_modelist *modelist;
889 struct fb_videomode *m, mode;
891 fb_var_to_videomode(&mode, var);
892 list_for_each(pos, head) {
893 modelist = list_entry(pos, struct fb_modelist, list);
895 if (fb_mode_is_equal(m, &mode))
902 * fb_add_videomode: adds videomode entry to modelist
903 * @mode: videomode to add
904 * @head: struct list_head of modelist
907 * Will only add unmatched mode entries
909 int fb_add_videomode(const struct fb_videomode *mode, struct list_head *head)
911 struct list_head *pos;
912 struct fb_modelist *modelist;
913 struct fb_videomode *m;
916 list_for_each(pos, head) {
917 modelist = list_entry(pos, struct fb_modelist, list);
919 if (fb_mode_is_equal(m, mode)) {
925 modelist = kmalloc(sizeof(struct fb_modelist),
930 modelist->mode = *mode;
931 list_add(&modelist->list, head);
937 * fb_delete_videomode: removed videomode entry from modelist
938 * @mode: videomode to remove
939 * @head: struct list_head of modelist
942 * Will remove all matching mode entries
944 void fb_delete_videomode(const struct fb_videomode *mode,
945 struct list_head *head)
947 struct list_head *pos, *n;
948 struct fb_modelist *modelist;
949 struct fb_videomode *m;
951 list_for_each_safe(pos, n, head) {
952 modelist = list_entry(pos, struct fb_modelist, list);
954 if (fb_mode_is_equal(m, mode)) {
962 * fb_destroy_modelist: destroy modelist
963 * @head: struct list_head of modelist
965 void fb_destroy_modelist(struct list_head *head)
967 struct list_head *pos, *n;
969 list_for_each_safe(pos, n, head) {
974 EXPORT_SYMBOL_GPL(fb_destroy_modelist);
977 * fb_videomode_to_modelist: convert mode array to mode list
978 * @modedb: array of struct fb_videomode
979 * @num: number of entries in array
980 * @head: struct list_head of modelist
982 void fb_videomode_to_modelist(const struct fb_videomode *modedb, int num,
983 struct list_head *head)
987 INIT_LIST_HEAD(head);
989 for (i = 0; i < num; i++) {
990 if (fb_add_videomode(&modedb[i], head))
995 const struct fb_videomode *fb_find_best_display(const struct fb_monspecs *specs,
996 struct list_head *head)
998 struct list_head *pos;
999 struct fb_modelist *modelist;
1000 const struct fb_videomode *m, *m1 = NULL, *md = NULL, *best = NULL;
1003 if (!head->prev || !head->next || list_empty(head))
1006 /* get the first detailed mode and the very first mode */
1007 list_for_each(pos, head) {
1008 modelist = list_entry(pos, struct fb_modelist, list);
1009 m = &modelist->mode;
1016 if (m->flag & FB_MODE_IS_FIRST) {
1022 /* first detailed timing is preferred */
1023 if (specs->misc & FB_MISC_1ST_DETAIL) {
1028 /* find best mode based on display width and height */
1029 if (specs->max_x && specs->max_y) {
1030 struct fb_var_screeninfo var;
1032 memset(&var, 0, sizeof(struct fb_var_screeninfo));
1033 var.xres = (specs->max_x * 7200)/254;
1034 var.yres = (specs->max_y * 7200)/254;
1035 m = fb_find_best_mode(&var, head);
1042 /* use first detailed mode */
1048 /* last resort, use the very first mode */
1053 EXPORT_SYMBOL(fb_find_best_display);
1055 EXPORT_SYMBOL(fb_videomode_to_var);
1056 EXPORT_SYMBOL(fb_var_to_videomode);
1057 EXPORT_SYMBOL(fb_mode_is_equal);
1058 EXPORT_SYMBOL(fb_add_videomode);
1059 EXPORT_SYMBOL(fb_match_mode);
1060 EXPORT_SYMBOL(fb_find_best_mode);
1061 EXPORT_SYMBOL(fb_find_nearest_mode);
1062 EXPORT_SYMBOL(fb_videomode_to_modelist);
1063 EXPORT_SYMBOL(fb_find_mode);