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>
15 #include <linux/slab.h>
17 #include <linux/kernel.h>
21 #define name_matches(v, s, l) \
22 ((v).name && !strncmp((s), (v).name, (l)) && strlen((v).name) == (l))
23 #define res_matches(v, x, y) \
24 ((v).xres == (x) && (v).yres == (y))
27 #define DPRINTK(fmt, args...) printk("modedb %s: " fmt, __func__ , ## args)
29 #define DPRINTK(fmt, args...)
32 const char *fb_mode_option
;
33 EXPORT_SYMBOL_GPL(fb_mode_option
);
36 * Standard video mode definitions (taken from XFree86)
39 static const struct fb_videomode modedb
[] = {
41 /* 640x400 @ 70 Hz, 31.5 kHz hsync */
42 NULL
, 70, 640, 400, 39721, 40, 24, 39, 9, 96, 2,
43 0, FB_VMODE_NONINTERLACED
45 /* 640x480 @ 60 Hz, 31.5 kHz hsync */
46 NULL
, 60, 640, 480, 39721, 40, 24, 32, 11, 96, 2,
47 0, FB_VMODE_NONINTERLACED
49 /* 800x600 @ 56 Hz, 35.15 kHz hsync */
50 NULL
, 56, 800, 600, 27777, 128, 24, 22, 1, 72, 2,
51 0, FB_VMODE_NONINTERLACED
53 /* 1024x768 @ 87 Hz interlaced, 35.5 kHz hsync */
54 NULL
, 87, 1024, 768, 22271, 56, 24, 33, 8, 160, 8,
55 0, FB_VMODE_INTERLACED
57 /* 640x400 @ 85 Hz, 37.86 kHz hsync */
58 NULL
, 85, 640, 400, 31746, 96, 32, 41, 1, 64, 3,
59 FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
61 /* 640x480 @ 72 Hz, 36.5 kHz hsync */
62 NULL
, 72, 640, 480, 31746, 144, 40, 30, 8, 40, 3,
63 0, FB_VMODE_NONINTERLACED
65 /* 640x480 @ 75 Hz, 37.50 kHz hsync */
66 NULL
, 75, 640, 480, 31746, 120, 16, 16, 1, 64, 3,
67 0, FB_VMODE_NONINTERLACED
69 /* 800x600 @ 60 Hz, 37.8 kHz hsync */
70 NULL
, 60, 800, 600, 25000, 88, 40, 23, 1, 128, 4,
71 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
73 /* 640x480 @ 85 Hz, 43.27 kHz hsync */
74 NULL
, 85, 640, 480, 27777, 80, 56, 25, 1, 56, 3,
75 0, FB_VMODE_NONINTERLACED
77 /* 1152x864 @ 89 Hz interlaced, 44 kHz hsync */
78 NULL
, 89, 1152, 864, 15384, 96, 16, 110, 1, 216, 10,
79 0, FB_VMODE_INTERLACED
81 /* 800x600 @ 72 Hz, 48.0 kHz hsync */
82 NULL
, 72, 800, 600, 20000, 64, 56, 23, 37, 120, 6,
83 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
85 /* 1024x768 @ 60 Hz, 48.4 kHz hsync */
86 NULL
, 60, 1024, 768, 15384, 168, 8, 29, 3, 144, 6,
87 0, FB_VMODE_NONINTERLACED
89 /* 640x480 @ 100 Hz, 53.01 kHz hsync */
90 NULL
, 100, 640, 480, 21834, 96, 32, 36, 8, 96, 6,
91 0, FB_VMODE_NONINTERLACED
93 /* 1152x864 @ 60 Hz, 53.5 kHz hsync */
94 NULL
, 60, 1152, 864, 11123, 208, 64, 16, 4, 256, 8,
95 0, FB_VMODE_NONINTERLACED
97 /* 800x600 @ 85 Hz, 55.84 kHz hsync */
98 NULL
, 85, 800, 600, 16460, 160, 64, 36, 16, 64, 5,
99 0, FB_VMODE_NONINTERLACED
101 /* 1024x768 @ 70 Hz, 56.5 kHz hsync */
102 NULL
, 70, 1024, 768, 13333, 144, 24, 29, 3, 136, 6,
103 0, FB_VMODE_NONINTERLACED
105 /* 1280x1024 @ 87 Hz interlaced, 51 kHz hsync */
106 NULL
, 87, 1280, 1024, 12500, 56, 16, 128, 1, 216, 12,
107 0, FB_VMODE_INTERLACED
109 /* 800x600 @ 100 Hz, 64.02 kHz hsync */
110 NULL
, 100, 800, 600, 14357, 160, 64, 30, 4, 64, 6,
111 0, FB_VMODE_NONINTERLACED
113 /* 1024x768 @ 76 Hz, 62.5 kHz hsync */
114 NULL
, 76, 1024, 768, 11764, 208, 8, 36, 16, 120, 3,
115 0, FB_VMODE_NONINTERLACED
117 /* 1152x864 @ 70 Hz, 62.4 kHz hsync */
118 NULL
, 70, 1152, 864, 10869, 106, 56, 20, 1, 160, 10,
119 0, FB_VMODE_NONINTERLACED
121 /* 1280x1024 @ 61 Hz, 64.2 kHz hsync */
122 NULL
, 61, 1280, 1024, 9090, 200, 48, 26, 1, 184, 3,
123 0, FB_VMODE_NONINTERLACED
125 /* 1400x1050 @ 60Hz, 63.9 kHz hsync */
126 NULL
, 60, 1400, 1050, 9259, 136, 40, 13, 1, 112, 3,
127 0, FB_VMODE_NONINTERLACED
129 /* 1400x1050 @ 75,107 Hz, 82,392 kHz +hsync +vsync*/
130 NULL
, 75, 1400, 1050, 7190, 120, 56, 23, 10, 112, 13,
131 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
133 /* 1400x1050 @ 60 Hz, ? kHz +hsync +vsync*/
134 NULL
, 60, 1400, 1050, 9259, 128, 40, 12, 0, 112, 3,
135 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
137 /* 1024x768 @ 85 Hz, 70.24 kHz hsync */
138 NULL
, 85, 1024, 768, 10111, 192, 32, 34, 14, 160, 6,
139 0, FB_VMODE_NONINTERLACED
141 /* 1152x864 @ 78 Hz, 70.8 kHz hsync */
142 NULL
, 78, 1152, 864, 9090, 228, 88, 32, 0, 84, 12,
143 0, FB_VMODE_NONINTERLACED
145 /* 1280x1024 @ 70 Hz, 74.59 kHz hsync */
146 NULL
, 70, 1280, 1024, 7905, 224, 32, 28, 8, 160, 8,
147 0, FB_VMODE_NONINTERLACED
149 /* 1600x1200 @ 60Hz, 75.00 kHz hsync */
150 NULL
, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3,
151 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
153 /* 1152x864 @ 84 Hz, 76.0 kHz hsync */
154 NULL
, 84, 1152, 864, 7407, 184, 312, 32, 0, 128, 12,
155 0, FB_VMODE_NONINTERLACED
157 /* 1280x1024 @ 74 Hz, 78.85 kHz hsync */
158 NULL
, 74, 1280, 1024, 7407, 256, 32, 34, 3, 144, 3,
159 0, FB_VMODE_NONINTERLACED
161 /* 1024x768 @ 100Hz, 80.21 kHz hsync */
162 NULL
, 100, 1024, 768, 8658, 192, 32, 21, 3, 192, 10,
163 0, FB_VMODE_NONINTERLACED
165 /* 1280x1024 @ 76 Hz, 81.13 kHz hsync */
166 NULL
, 76, 1280, 1024, 7407, 248, 32, 34, 3, 104, 3,
167 0, FB_VMODE_NONINTERLACED
169 /* 1600x1200 @ 70 Hz, 87.50 kHz hsync */
170 NULL
, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3,
171 0, FB_VMODE_NONINTERLACED
173 /* 1152x864 @ 100 Hz, 89.62 kHz hsync */
174 NULL
, 100, 1152, 864, 7264, 224, 32, 17, 2, 128, 19,
175 0, FB_VMODE_NONINTERLACED
177 /* 1280x1024 @ 85 Hz, 91.15 kHz hsync */
178 NULL
, 85, 1280, 1024, 6349, 224, 64, 44, 1, 160, 3,
179 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
181 /* 1600x1200 @ 75 Hz, 93.75 kHz hsync */
182 NULL
, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3,
183 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
185 /* 1680x1050 @ 60 Hz, 65.191 kHz hsync */
186 NULL
, 60, 1680, 1050, 6848, 280, 104, 30, 3, 176, 6,
187 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
189 /* 1600x1200 @ 85 Hz, 105.77 kHz hsync */
190 NULL
, 85, 1600, 1200, 4545, 272, 16, 37, 4, 192, 3,
191 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
193 /* 1280x1024 @ 100 Hz, 107.16 kHz hsync */
194 NULL
, 100, 1280, 1024, 5502, 256, 32, 26, 7, 128, 15,
195 0, FB_VMODE_NONINTERLACED
197 /* 1800x1440 @ 64Hz, 96.15 kHz hsync */
198 NULL
, 64, 1800, 1440, 4347, 304, 96, 46, 1, 192, 3,
199 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
201 /* 1800x1440 @ 70Hz, 104.52 kHz hsync */
202 NULL
, 70, 1800, 1440, 4000, 304, 96, 46, 1, 192, 3,
203 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
205 /* 512x384 @ 78 Hz, 31.50 kHz hsync */
206 NULL
, 78, 512, 384, 49603, 48, 16, 16, 1, 64, 3,
207 0, FB_VMODE_NONINTERLACED
209 /* 512x384 @ 85 Hz, 34.38 kHz hsync */
210 NULL
, 85, 512, 384, 45454, 48, 16, 16, 1, 64, 3,
211 0, FB_VMODE_NONINTERLACED
213 /* 320x200 @ 70 Hz, 31.5 kHz hsync, 8:5 aspect ratio */
214 NULL
, 70, 320, 200, 79440, 16, 16, 20, 4, 48, 1,
217 /* 320x240 @ 60 Hz, 31.5 kHz hsync, 4:3 aspect ratio */
218 NULL
, 60, 320, 240, 79440, 16, 16, 16, 5, 48, 1,
221 /* 320x240 @ 72 Hz, 36.5 kHz hsync */
222 NULL
, 72, 320, 240, 63492, 16, 16, 16, 4, 48, 2,
225 /* 400x300 @ 56 Hz, 35.2 kHz hsync, 4:3 aspect ratio */
226 NULL
, 56, 400, 300, 55555, 64, 16, 10, 1, 32, 1,
229 /* 400x300 @ 60 Hz, 37.8 kHz hsync */
230 NULL
, 60, 400, 300, 50000, 48, 16, 11, 1, 64, 2,
233 /* 400x300 @ 72 Hz, 48.0 kHz hsync */
234 NULL
, 72, 400, 300, 40000, 32, 24, 11, 19, 64, 3,
237 /* 480x300 @ 56 Hz, 35.2 kHz hsync, 8:5 aspect ratio */
238 NULL
, 56, 480, 300, 46176, 80, 16, 10, 1, 40, 1,
241 /* 480x300 @ 60 Hz, 37.8 kHz hsync */
242 NULL
, 60, 480, 300, 41858, 56, 16, 11, 1, 80, 2,
245 /* 480x300 @ 63 Hz, 39.6 kHz hsync */
246 NULL
, 63, 480, 300, 40000, 56, 16, 11, 1, 80, 2,
249 /* 480x300 @ 72 Hz, 48.0 kHz hsync */
250 NULL
, 72, 480, 300, 33386, 40, 24, 11, 19, 80, 3,
253 /* 1920x1200 @ 60 Hz, 74.5 Khz hsync */
254 NULL
, 60, 1920, 1200, 5177, 128, 336, 1, 38, 208, 3,
255 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
256 FB_VMODE_NONINTERLACED
258 /* 1152x768, 60 Hz, PowerBook G4 Titanium I and II */
259 NULL
, 60, 1152, 768, 14047, 158, 26, 29, 3, 136, 6,
260 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
262 /* 1366x768, 60 Hz, 47.403 kHz hsync, WXGA 16:9 aspect ratio */
263 NULL
, 60, 1366, 768, 13806, 120, 10, 14, 3, 32, 5,
264 0, FB_VMODE_NONINTERLACED
266 /* 1280x800, 60 Hz, 47.403 kHz hsync, WXGA 16:10 aspect ratio */
267 NULL
, 60, 1280, 800, 12048, 200, 64, 24, 1, 136, 3,
268 0, FB_VMODE_NONINTERLACED
270 /* 720x576i @ 50 Hz, 15.625 kHz hsync (PAL RGB) */
271 NULL
, 50, 720, 576, 74074, 64, 16, 39, 5, 64, 5,
272 0, FB_VMODE_INTERLACED
274 /* 800x520i @ 50 Hz, 15.625 kHz hsync (PAL RGB) */
275 NULL
, 50, 800, 520, 58823, 144, 64, 72, 28, 80, 5,
276 0, FB_VMODE_INTERLACED
280 #ifdef CONFIG_FB_MODE_HELPERS
281 const struct fb_videomode vesa_modes
[] = {
282 /* 0 640x350-85 VESA */
283 { NULL
, 85, 640, 350, 31746, 96, 32, 60, 32, 64, 3,
284 FB_SYNC_HOR_HIGH_ACT
, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
285 /* 1 640x400-85 VESA */
286 { NULL
, 85, 640, 400, 31746, 96, 32, 41, 01, 64, 3,
287 FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
288 /* 2 720x400-85 VESA */
289 { NULL
, 85, 721, 400, 28169, 108, 36, 42, 01, 72, 3,
290 FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
291 /* 3 640x480-60 VESA */
292 { NULL
, 60, 640, 480, 39682, 48, 16, 33, 10, 96, 2,
293 0, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
294 /* 4 640x480-72 VESA */
295 { NULL
, 72, 640, 480, 31746, 128, 24, 29, 9, 40, 2,
296 0, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
297 /* 5 640x480-75 VESA */
298 { NULL
, 75, 640, 480, 31746, 120, 16, 16, 01, 64, 3,
299 0, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
300 /* 6 640x480-85 VESA */
301 { NULL
, 85, 640, 480, 27777, 80, 56, 25, 01, 56, 3,
302 0, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
303 /* 7 800x600-56 VESA */
304 { NULL
, 56, 800, 600, 27777, 128, 24, 22, 01, 72, 2,
305 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
306 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
307 /* 8 800x600-60 VESA */
308 { NULL
, 60, 800, 600, 25000, 88, 40, 23, 01, 128, 4,
309 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
310 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
311 /* 9 800x600-72 VESA */
312 { NULL
, 72, 800, 600, 20000, 64, 56, 23, 37, 120, 6,
313 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
314 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
315 /* 10 800x600-75 VESA */
316 { NULL
, 75, 800, 600, 20202, 160, 16, 21, 01, 80, 3,
317 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
318 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
319 /* 11 800x600-85 VESA */
320 { NULL
, 85, 800, 600, 17761, 152, 32, 27, 01, 64, 3,
321 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
322 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
323 /* 12 1024x768i-43 VESA */
324 { NULL
, 43, 1024, 768, 22271, 56, 8, 41, 0, 176, 8,
325 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
326 FB_VMODE_INTERLACED
, FB_MODE_IS_VESA
},
327 /* 13 1024x768-60 VESA */
328 { NULL
, 60, 1024, 768, 15384, 160, 24, 29, 3, 136, 6,
329 0, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
330 /* 14 1024x768-70 VESA */
331 { NULL
, 70, 1024, 768, 13333, 144, 24, 29, 3, 136, 6,
332 0, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
333 /* 15 1024x768-75 VESA */
334 { NULL
, 75, 1024, 768, 12690, 176, 16, 28, 1, 96, 3,
335 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
336 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
337 /* 16 1024x768-85 VESA */
338 { NULL
, 85, 1024, 768, 10582, 208, 48, 36, 1, 96, 3,
339 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
340 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
341 /* 17 1152x864-75 VESA */
342 { NULL
, 75, 1152, 864, 9259, 256, 64, 32, 1, 128, 3,
343 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
344 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
345 /* 18 1280x960-60 VESA */
346 { NULL
, 60, 1280, 960, 9259, 312, 96, 36, 1, 112, 3,
347 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
348 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
349 /* 19 1280x960-85 VESA */
350 { NULL
, 85, 1280, 960, 6734, 224, 64, 47, 1, 160, 3,
351 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
352 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
353 /* 20 1280x1024-60 VESA */
354 { NULL
, 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3,
355 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
356 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
357 /* 21 1280x1024-75 VESA */
358 { NULL
, 75, 1280, 1024, 7407, 248, 16, 38, 1, 144, 3,
359 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
360 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
361 /* 22 1280x1024-85 VESA */
362 { NULL
, 85, 1280, 1024, 6349, 224, 64, 44, 1, 160, 3,
363 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
364 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
365 /* 23 1600x1200-60 VESA */
366 { NULL
, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3,
367 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
368 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
369 /* 24 1600x1200-65 VESA */
370 { NULL
, 65, 1600, 1200, 5698, 304, 64, 46, 1, 192, 3,
371 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
372 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
373 /* 25 1600x1200-70 VESA */
374 { NULL
, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3,
375 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
376 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
377 /* 26 1600x1200-75 VESA */
378 { NULL
, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3,
379 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
380 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
381 /* 27 1600x1200-85 VESA */
382 { NULL
, 85, 1600, 1200, 4357, 304, 64, 46, 1, 192, 3,
383 FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
384 FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
385 /* 28 1792x1344-60 VESA */
386 { NULL
, 60, 1792, 1344, 4882, 328, 128, 46, 1, 200, 3,
387 FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
388 /* 29 1792x1344-75 VESA */
389 { NULL
, 75, 1792, 1344, 3831, 352, 96, 69, 1, 216, 3,
390 FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
391 /* 30 1856x1392-60 VESA */
392 { NULL
, 60, 1856, 1392, 4580, 352, 96, 43, 1, 224, 3,
393 FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
394 /* 31 1856x1392-75 VESA */
395 { NULL
, 75, 1856, 1392, 3472, 352, 128, 104, 1, 224, 3,
396 FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
397 /* 32 1920x1440-60 VESA */
398 { NULL
, 60, 1920, 1440, 4273, 344, 128, 56, 1, 200, 3,
399 FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
400 /* 33 1920x1440-75 VESA */
401 { NULL
, 75, 1920, 1440, 3367, 352, 144, 56, 1, 224, 3,
402 FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
, FB_MODE_IS_VESA
},
404 EXPORT_SYMBOL(vesa_modes
);
405 #endif /* CONFIG_FB_MODE_HELPERS */
408 * fb_try_mode - test a video mode
409 * @var: frame buffer user defined part of display
410 * @info: frame buffer info structure
411 * @mode: frame buffer video mode structure
412 * @bpp: color depth in bits per pixel
414 * Tries a video mode to test it's validity for device @info.
416 * Returns 1 on success.
420 static int fb_try_mode(struct fb_var_screeninfo
*var
, struct fb_info
*info
,
421 const struct fb_videomode
*mode
, unsigned int bpp
)
425 DPRINTK("Trying mode %s %dx%d-%d@%d\n", mode
->name
? mode
->name
: "noname",
426 mode
->xres
, mode
->yres
, bpp
, mode
->refresh
);
427 var
->xres
= mode
->xres
;
428 var
->yres
= mode
->yres
;
429 var
->xres_virtual
= mode
->xres
;
430 var
->yres_virtual
= mode
->yres
;
433 var
->bits_per_pixel
= bpp
;
434 var
->activate
|= FB_ACTIVATE_TEST
;
435 var
->pixclock
= mode
->pixclock
;
436 var
->left_margin
= mode
->left_margin
;
437 var
->right_margin
= mode
->right_margin
;
438 var
->upper_margin
= mode
->upper_margin
;
439 var
->lower_margin
= mode
->lower_margin
;
440 var
->hsync_len
= mode
->hsync_len
;
441 var
->vsync_len
= mode
->vsync_len
;
442 var
->sync
= mode
->sync
;
443 var
->vmode
= mode
->vmode
;
444 if (info
->fbops
->fb_check_var
)
445 err
= info
->fbops
->fb_check_var(var
, info
);
446 var
->activate
&= ~FB_ACTIVATE_TEST
;
451 * fb_find_mode - finds a valid video mode
452 * @var: frame buffer user defined part of display
453 * @info: frame buffer info structure
454 * @mode_option: string video mode to find
455 * @db: video mode database
456 * @dbsize: size of @db
457 * @default_mode: default video mode to fall back to
458 * @default_bpp: default color depth in bits per pixel
460 * Finds a suitable video mode, starting with the specified mode
461 * in @mode_option with fallback to @default_mode. If
462 * @default_mode fails, all modes in the video mode database will
465 * Valid mode specifiers for @mode_option:
467 * <xres>x<yres>[M][R][-<bpp>][@<refresh>][i][m] or
468 * <name>[-<bpp>][@<refresh>]
470 * with <xres>, <yres>, <bpp> and <refresh> decimal numbers and
473 * If 'M' is present after yres (and before refresh/bpp if present),
474 * the function will compute the timings using VESA(tm) Coordinated
475 * Video Timings (CVT). If 'R' is present after 'M', will compute with
476 * reduced blanking (for flatpanels). If 'i' is present, compute
477 * interlaced mode. If 'm' is present, add margins equal to 1.8%
478 * of xres rounded down to 8 pixels, and 1.8% of yres. The char
479 * 'i' and 'm' must be after 'M' and 'R'. Example:
481 * 1024x768MR-8@60m - Reduced blank with margins at 60Hz.
483 * NOTE: The passed struct @var is _not_ cleared! This allows you
484 * to supply values for e.g. the grayscale and accel_flags fields.
486 * Returns zero for failure, 1 if using specified @mode_option,
487 * 2 if using specified @mode_option with an ignored refresh rate,
488 * 3 if default mode is used, 4 if fall back to any valid mode.
492 int fb_find_mode(struct fb_var_screeninfo
*var
,
493 struct fb_info
*info
, const char *mode_option
,
494 const struct fb_videomode
*db
, unsigned int dbsize
,
495 const struct fb_videomode
*default_mode
,
496 unsigned int default_bpp
)
500 /* Set up defaults */
503 dbsize
= ARRAY_SIZE(modedb
);
507 default_mode
= &db
[0];
512 /* Did the user specify a video mode? */
514 mode_option
= fb_mode_option
;
516 const char *name
= mode_option
;
517 unsigned int namelen
= strlen(name
);
518 int res_specified
= 0, bpp_specified
= 0, refresh_specified
= 0;
519 unsigned int xres
= 0, yres
= 0, bpp
= default_bpp
, refresh
= 0;
520 int yres_specified
= 0, cvt
= 0, rb
= 0, interlace
= 0, margins
= 0;
521 u32 best
, diff
, tdiff
;
523 for (i
= namelen
-1; i
>= 0; i
--) {
527 if (!refresh_specified
&& !bpp_specified
&&
529 refresh
= simple_strtol(&name
[i
+1], NULL
, 10);
530 refresh_specified
= 1;
538 if (!bpp_specified
&& !yres_specified
) {
539 bpp
= simple_strtol(&name
[i
+1], NULL
, 10);
547 if (!yres_specified
) {
548 yres
= simple_strtol(&name
[i
+1], NULL
, 10);
575 if (i
< 0 && yres_specified
) {
576 xres
= simple_strtol(name
, NULL
, 10);
581 struct fb_videomode cvt_mode
;
584 DPRINTK("CVT mode %dx%d@%dHz%s%s%s\n", xres
, yres
,
585 (refresh
) ? refresh
: 60, (rb
) ? " reduced blanking" :
586 "", (margins
) ? " with margins" : "", (interlace
) ?
589 memset(&cvt_mode
, 0, sizeof(cvt_mode
));
590 cvt_mode
.xres
= xres
;
591 cvt_mode
.yres
= yres
;
592 cvt_mode
.refresh
= (refresh
) ? refresh
: 60;
595 cvt_mode
.vmode
|= FB_VMODE_INTERLACED
;
597 cvt_mode
.vmode
&= ~FB_VMODE_INTERLACED
;
599 ret
= fb_find_mode_cvt(&cvt_mode
, margins
, rb
);
601 if (!ret
&& !fb_try_mode(var
, info
, &cvt_mode
, bpp
)) {
602 DPRINTK("modedb CVT: CVT mode ok\n");
606 DPRINTK("CVT mode invalid, getting mode from database\n");
609 DPRINTK("Trying specified video mode%s %ix%i\n",
610 refresh_specified
? "" : " (ignoring refresh rate)", xres
, yres
);
612 if (!refresh_specified
) {
614 * If the caller has provided a custom mode database and a
615 * valid monspecs structure, we look for the mode with the
616 * highest refresh rate. Otherwise we play it safe it and
617 * try to find a mode with a refresh rate closest to the
621 info
->monspecs
.vfmin
&& info
->monspecs
.vfmax
&&
622 info
->monspecs
.hfmin
&& info
->monspecs
.hfmax
&&
623 info
->monspecs
.dclkmax
) {
632 for (i
= 0; i
< dbsize
; i
++) {
633 if ((name_matches(db
[i
], name
, namelen
) ||
634 (res_specified
&& res_matches(db
[i
], xres
, yres
))) &&
635 !fb_try_mode(var
, info
, &db
[i
], bpp
)) {
636 if (refresh_specified
&& db
[i
].refresh
== refresh
) {
639 if (abs(db
[i
].refresh
- refresh
) < diff
) {
640 diff
= abs(db
[i
].refresh
- refresh
);
647 fb_try_mode(var
, info
, &db
[best
], bpp
);
648 return (refresh_specified
) ? 2 : 1;
651 diff
= 2 * (xres
+ yres
);
653 DPRINTK("Trying best-fit modes\n");
654 for (i
= 0; i
< dbsize
; i
++) {
655 DPRINTK("Trying %ix%i\n", db
[i
].xres
, db
[i
].yres
);
656 if (!fb_try_mode(var
, info
, &db
[i
], bpp
)) {
657 tdiff
= abs(db
[i
].xres
- xres
) +
658 abs(db
[i
].yres
- yres
);
661 * Penalize modes with resolutions smaller
664 if (xres
> db
[i
].xres
|| yres
> db
[i
].yres
)
665 tdiff
+= xres
+ yres
;
674 fb_try_mode(var
, info
, &db
[best
], bpp
);
679 DPRINTK("Trying default video mode\n");
680 if (!fb_try_mode(var
, info
, default_mode
, default_bpp
))
683 DPRINTK("Trying all modes\n");
684 for (i
= 0; i
< dbsize
; i
++)
685 if (!fb_try_mode(var
, info
, &db
[i
], default_bpp
))
688 DPRINTK("No valid mode found\n");
693 * fb_var_to_videomode - convert fb_var_screeninfo to fb_videomode
694 * @mode: pointer to struct fb_videomode
695 * @var: pointer to struct fb_var_screeninfo
697 void fb_var_to_videomode(struct fb_videomode
*mode
,
698 const struct fb_var_screeninfo
*var
)
700 u32 pixclock
, hfreq
, htotal
, vtotal
;
703 mode
->xres
= var
->xres
;
704 mode
->yres
= var
->yres
;
705 mode
->pixclock
= var
->pixclock
;
706 mode
->hsync_len
= var
->hsync_len
;
707 mode
->vsync_len
= var
->vsync_len
;
708 mode
->left_margin
= var
->left_margin
;
709 mode
->right_margin
= var
->right_margin
;
710 mode
->upper_margin
= var
->upper_margin
;
711 mode
->lower_margin
= var
->lower_margin
;
712 mode
->sync
= var
->sync
;
713 mode
->vmode
= var
->vmode
& FB_VMODE_MASK
;
714 mode
->flag
= FB_MODE_IS_FROM_VAR
;
720 pixclock
= PICOS2KHZ(var
->pixclock
) * 1000;
722 htotal
= var
->xres
+ var
->right_margin
+ var
->hsync_len
+
724 vtotal
= var
->yres
+ var
->lower_margin
+ var
->vsync_len
+
727 if (var
->vmode
& FB_VMODE_INTERLACED
)
729 if (var
->vmode
& FB_VMODE_DOUBLE
)
732 hfreq
= pixclock
/htotal
;
733 mode
->refresh
= hfreq
/vtotal
;
737 * fb_videomode_to_var - convert fb_videomode to fb_var_screeninfo
738 * @var: pointer to struct fb_var_screeninfo
739 * @mode: pointer to struct fb_videomode
741 void fb_videomode_to_var(struct fb_var_screeninfo
*var
,
742 const struct fb_videomode
*mode
)
744 var
->xres
= mode
->xres
;
745 var
->yres
= mode
->yres
;
746 var
->xres_virtual
= mode
->xres
;
747 var
->yres_virtual
= mode
->yres
;
750 var
->pixclock
= mode
->pixclock
;
751 var
->left_margin
= mode
->left_margin
;
752 var
->right_margin
= mode
->right_margin
;
753 var
->upper_margin
= mode
->upper_margin
;
754 var
->lower_margin
= mode
->lower_margin
;
755 var
->hsync_len
= mode
->hsync_len
;
756 var
->vsync_len
= mode
->vsync_len
;
757 var
->sync
= mode
->sync
;
758 var
->vmode
= mode
->vmode
& FB_VMODE_MASK
;
762 * fb_mode_is_equal - compare 2 videomodes
763 * @mode1: first videomode
764 * @mode2: second videomode
767 * 1 if equal, 0 if not
769 int fb_mode_is_equal(const struct fb_videomode
*mode1
,
770 const struct fb_videomode
*mode2
)
772 return (mode1
->xres
== mode2
->xres
&&
773 mode1
->yres
== mode2
->yres
&&
774 mode1
->pixclock
== mode2
->pixclock
&&
775 mode1
->hsync_len
== mode2
->hsync_len
&&
776 mode1
->vsync_len
== mode2
->vsync_len
&&
777 mode1
->left_margin
== mode2
->left_margin
&&
778 mode1
->right_margin
== mode2
->right_margin
&&
779 mode1
->upper_margin
== mode2
->upper_margin
&&
780 mode1
->lower_margin
== mode2
->lower_margin
&&
781 mode1
->sync
== mode2
->sync
&&
782 mode1
->vmode
== mode2
->vmode
);
786 * fb_find_best_mode - find best matching videomode
787 * @var: pointer to struct fb_var_screeninfo
788 * @head: pointer to struct list_head of modelist
791 * struct fb_videomode, NULL if none found
794 * This function assumes that all modelist entries in
795 * info->modelist are valid.
798 * Finds best matching videomode which has an equal or greater dimension than
799 * var->xres and var->yres. If more than 1 videomode is found, will return
800 * the videomode with the highest refresh rate
802 const struct fb_videomode
*fb_find_best_mode(const struct fb_var_screeninfo
*var
,
803 struct list_head
*head
)
805 struct list_head
*pos
;
806 struct fb_modelist
*modelist
;
807 struct fb_videomode
*mode
, *best
= NULL
;
810 list_for_each(pos
, head
) {
813 modelist
= list_entry(pos
, struct fb_modelist
, list
);
814 mode
= &modelist
->mode
;
816 if (mode
->xres
>= var
->xres
&& mode
->yres
>= var
->yres
) {
817 d
= (mode
->xres
- var
->xres
) +
818 (mode
->yres
- var
->yres
);
822 } else if (diff
== d
&& best
&&
823 mode
->refresh
> best
->refresh
)
831 * fb_find_nearest_mode - find closest videomode
833 * @mode: pointer to struct fb_videomode
834 * @head: pointer to modelist
836 * Finds best matching videomode, smaller or greater in dimension.
837 * If more than 1 videomode is found, will return the videomode with
838 * the closest refresh rate.
840 const struct fb_videomode
*fb_find_nearest_mode(const struct fb_videomode
*mode
,
841 struct list_head
*head
)
843 struct list_head
*pos
;
844 struct fb_modelist
*modelist
;
845 struct fb_videomode
*cmode
, *best
= NULL
;
846 u32 diff
= -1, diff_refresh
= -1;
848 list_for_each(pos
, head
) {
851 modelist
= list_entry(pos
, struct fb_modelist
, list
);
852 cmode
= &modelist
->mode
;
854 d
= abs(cmode
->xres
- mode
->xres
) +
855 abs(cmode
->yres
- mode
->yres
);
859 } else if (diff
== d
) {
860 d
= abs(cmode
->refresh
- mode
->refresh
);
861 if (diff_refresh
> d
) {
872 * fb_match_mode - find a videomode which exactly matches the timings in var
873 * @var: pointer to struct fb_var_screeninfo
874 * @head: pointer to struct list_head of modelist
877 * struct fb_videomode, NULL if none found
879 const struct fb_videomode
*fb_match_mode(const struct fb_var_screeninfo
*var
,
880 struct list_head
*head
)
882 struct list_head
*pos
;
883 struct fb_modelist
*modelist
;
884 struct fb_videomode
*m
, mode
;
886 fb_var_to_videomode(&mode
, var
);
887 list_for_each(pos
, head
) {
888 modelist
= list_entry(pos
, struct fb_modelist
, list
);
890 if (fb_mode_is_equal(m
, &mode
))
897 * fb_add_videomode - adds videomode entry to modelist
898 * @mode: videomode to add
899 * @head: struct list_head of modelist
902 * Will only add unmatched mode entries
904 int fb_add_videomode(const struct fb_videomode
*mode
, struct list_head
*head
)
906 struct list_head
*pos
;
907 struct fb_modelist
*modelist
;
908 struct fb_videomode
*m
;
911 list_for_each(pos
, head
) {
912 modelist
= list_entry(pos
, struct fb_modelist
, list
);
914 if (fb_mode_is_equal(m
, mode
)) {
920 modelist
= kmalloc(sizeof(struct fb_modelist
),
925 modelist
->mode
= *mode
;
926 list_add(&modelist
->list
, head
);
932 * fb_delete_videomode - removed videomode entry from modelist
933 * @mode: videomode to remove
934 * @head: struct list_head of modelist
937 * Will remove all matching mode entries
939 void fb_delete_videomode(const struct fb_videomode
*mode
,
940 struct list_head
*head
)
942 struct list_head
*pos
, *n
;
943 struct fb_modelist
*modelist
;
944 struct fb_videomode
*m
;
946 list_for_each_safe(pos
, n
, head
) {
947 modelist
= list_entry(pos
, struct fb_modelist
, list
);
949 if (fb_mode_is_equal(m
, mode
)) {
957 * fb_destroy_modelist - destroy modelist
958 * @head: struct list_head of modelist
960 void fb_destroy_modelist(struct list_head
*head
)
962 struct list_head
*pos
, *n
;
964 list_for_each_safe(pos
, n
, head
) {
969 EXPORT_SYMBOL_GPL(fb_destroy_modelist
);
972 * fb_videomode_to_modelist - convert mode array to mode list
973 * @modedb: array of struct fb_videomode
974 * @num: number of entries in array
975 * @head: struct list_head of modelist
977 void fb_videomode_to_modelist(const struct fb_videomode
*modedb
, int num
,
978 struct list_head
*head
)
982 INIT_LIST_HEAD(head
);
984 for (i
= 0; i
< num
; i
++) {
985 if (fb_add_videomode(&modedb
[i
], head
))
990 const struct fb_videomode
*fb_find_best_display(const struct fb_monspecs
*specs
,
991 struct list_head
*head
)
993 struct list_head
*pos
;
994 struct fb_modelist
*modelist
;
995 const struct fb_videomode
*m
, *m1
= NULL
, *md
= NULL
, *best
= NULL
;
998 if (!head
->prev
|| !head
->next
|| list_empty(head
))
1001 /* get the first detailed mode and the very first mode */
1002 list_for_each(pos
, head
) {
1003 modelist
= list_entry(pos
, struct fb_modelist
, list
);
1004 m
= &modelist
->mode
;
1011 if (m
->flag
& FB_MODE_IS_FIRST
) {
1017 /* first detailed timing is preferred */
1018 if (specs
->misc
& FB_MISC_1ST_DETAIL
) {
1023 /* find best mode based on display width and height */
1024 if (specs
->max_x
&& specs
->max_y
) {
1025 struct fb_var_screeninfo var
;
1027 memset(&var
, 0, sizeof(struct fb_var_screeninfo
));
1028 var
.xres
= (specs
->max_x
* 7200)/254;
1029 var
.yres
= (specs
->max_y
* 7200)/254;
1030 m
= fb_find_best_mode(&var
, head
);
1037 /* use first detailed mode */
1043 /* last resort, use the very first mode */
1048 EXPORT_SYMBOL(fb_find_best_display
);
1050 EXPORT_SYMBOL(fb_videomode_to_var
);
1051 EXPORT_SYMBOL(fb_var_to_videomode
);
1052 EXPORT_SYMBOL(fb_mode_is_equal
);
1053 EXPORT_SYMBOL(fb_add_videomode
);
1054 EXPORT_SYMBOL(fb_match_mode
);
1055 EXPORT_SYMBOL(fb_find_best_mode
);
1056 EXPORT_SYMBOL(fb_find_nearest_mode
);
1057 EXPORT_SYMBOL(fb_videomode_to_modelist
);
1058 EXPORT_SYMBOL(fb_find_mode
);
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