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Linux 2.6.34-rc3
[pohmelfs.git] / drivers / video / modedb.c
blobb895aae41630b3d1b6dd90b54038986bf350b331
1 /*
2 * linux/drivers/video/modedb.c -- Standard video mode database management
3 *
4 * Copyright (C) 1999 Geert Uytterhoeven
5 *
6 * 2001 - Documented with DocBook
7 * - Brad Douglas <brad@neruo.com>
8 *
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
11 * more details.
12 */
13
14 #include <linux/module.h>
15 #include <linux/fb.h>
16 #include <linux/kernel.h>
17
18 #undef DEBUG
19
20 #define name_matches(v, s, l) \
21 ((v).name && !strncmp((s), (v).name, (l)) && strlen((v).name) == (l))
22 #define res_matches(v, x, y) \
23 ((v).xres == (x) && (v).yres == (y))
24
25 #ifdef DEBUG
26 #define DPRINTK(fmt, args...) printk("modedb %s: " fmt, __func__ , ## args)
27 #else
28 #define DPRINTK(fmt, args...)
29 #endif
30
31 const char *fb_mode_option;
32 EXPORT_SYMBOL_GPL(fb_mode_option);
33
34 /*
35 * Standard video mode definitions (taken from XFree86)
36 */
37
38 static const struct fb_videomode modedb[] = {
39 {
40 /* 640x400 @ 70 Hz, 31.5 kHz hsync */
41 NULL, 70, 640, 400, 39721, 40, 24, 39, 9, 96, 2,
42 0, FB_VMODE_NONINTERLACED
43 }, {
44 /* 640x480 @ 60 Hz, 31.5 kHz hsync */
45 NULL, 60, 640, 480, 39721, 40, 24, 32, 11, 96, 2,
46 0, FB_VMODE_NONINTERLACED
47 }, {
48 /* 800x600 @ 56 Hz, 35.15 kHz hsync */
49 NULL, 56, 800, 600, 27777, 128, 24, 22, 1, 72, 2,
50 0, FB_VMODE_NONINTERLACED
51 }, {
52 /* 1024x768 @ 87 Hz interlaced, 35.5 kHz hsync */
53 NULL, 87, 1024, 768, 22271, 56, 24, 33, 8, 160, 8,
54 0, FB_VMODE_INTERLACED
55 }, {
56 /* 640x400 @ 85 Hz, 37.86 kHz hsync */
57 NULL, 85, 640, 400, 31746, 96, 32, 41, 1, 64, 3,
58 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
59 }, {
60 /* 640x480 @ 72 Hz, 36.5 kHz hsync */
61 NULL, 72, 640, 480, 31746, 144, 40, 30, 8, 40, 3,
62 0, FB_VMODE_NONINTERLACED
63 }, {
64 /* 640x480 @ 75 Hz, 37.50 kHz hsync */
65 NULL, 75, 640, 480, 31746, 120, 16, 16, 1, 64, 3,
66 0, FB_VMODE_NONINTERLACED
67 }, {
68 /* 800x600 @ 60 Hz, 37.8 kHz hsync */
69 NULL, 60, 800, 600, 25000, 88, 40, 23, 1, 128, 4,
70 FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
71 }, {
72 /* 640x480 @ 85 Hz, 43.27 kHz hsync */
73 NULL, 85, 640, 480, 27777, 80, 56, 25, 1, 56, 3,
74 0, FB_VMODE_NONINTERLACED
75 }, {
76 /* 1152x864 @ 89 Hz interlaced, 44 kHz hsync */
77 NULL, 89, 1152, 864, 15384, 96, 16, 110, 1, 216, 10,
78 0, FB_VMODE_INTERLACED
79 }, {
80 /* 800x600 @ 72 Hz, 48.0 kHz hsync */
81 NULL, 72, 800, 600, 20000, 64, 56, 23, 37, 120, 6,
82 FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
83 }, {
84 /* 1024x768 @ 60 Hz, 48.4 kHz hsync */
85 NULL, 60, 1024, 768, 15384, 168, 8, 29, 3, 144, 6,
86 0, FB_VMODE_NONINTERLACED
87 }, {
88 /* 640x480 @ 100 Hz, 53.01 kHz hsync */
89 NULL, 100, 640, 480, 21834, 96, 32, 36, 8, 96, 6,
90 0, FB_VMODE_NONINTERLACED
91 }, {
92 /* 1152x864 @ 60 Hz, 53.5 kHz hsync */
93 NULL, 60, 1152, 864, 11123, 208, 64, 16, 4, 256, 8,
94 0, FB_VMODE_NONINTERLACED
95 }, {
96 /* 800x600 @ 85 Hz, 55.84 kHz hsync */
97 NULL, 85, 800, 600, 16460, 160, 64, 36, 16, 64, 5,
98 0, FB_VMODE_NONINTERLACED
99 }, {
100 /* 1024x768 @ 70 Hz, 56.5 kHz hsync */
101 NULL, 70, 1024, 768, 13333, 144, 24, 29, 3, 136, 6,
102 0, FB_VMODE_NONINTERLACED
103 }, {
104 /* 1280x1024 @ 87 Hz interlaced, 51 kHz hsync */
105 NULL, 87, 1280, 1024, 12500, 56, 16, 128, 1, 216, 12,
106 0, FB_VMODE_INTERLACED
107 }, {
108 /* 800x600 @ 100 Hz, 64.02 kHz hsync */
109 NULL, 100, 800, 600, 14357, 160, 64, 30, 4, 64, 6,
110 0, FB_VMODE_NONINTERLACED
111 }, {
112 /* 1024x768 @ 76 Hz, 62.5 kHz hsync */
113 NULL, 76, 1024, 768, 11764, 208, 8, 36, 16, 120, 3,
114 0, FB_VMODE_NONINTERLACED
115 }, {
116 /* 1152x864 @ 70 Hz, 62.4 kHz hsync */
117 NULL, 70, 1152, 864, 10869, 106, 56, 20, 1, 160, 10,
118 0, FB_VMODE_NONINTERLACED
119 }, {
120 /* 1280x1024 @ 61 Hz, 64.2 kHz hsync */
121 NULL, 61, 1280, 1024, 9090, 200, 48, 26, 1, 184, 3,
122 0, FB_VMODE_NONINTERLACED
123 }, {
124 /* 1400x1050 @ 60Hz, 63.9 kHz hsync */
125 NULL, 60, 1400, 1050, 9259, 136, 40, 13, 1, 112, 3,
126 0, FB_VMODE_NONINTERLACED
127 }, {
128 /* 1400x1050 @ 75,107 Hz, 82,392 kHz +hsync +vsync*/
129 NULL, 75, 1400, 1050, 7190, 120, 56, 23, 10, 112, 13,
130 FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
131 }, {
132 /* 1400x1050 @ 60 Hz, ? kHz +hsync +vsync*/
133 NULL, 60, 1400, 1050, 9259, 128, 40, 12, 0, 112, 3,
134 FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
135 }, {
136 /* 1024x768 @ 85 Hz, 70.24 kHz hsync */
137 NULL, 85, 1024, 768, 10111, 192, 32, 34, 14, 160, 6,
138 0, FB_VMODE_NONINTERLACED
139 }, {
140 /* 1152x864 @ 78 Hz, 70.8 kHz hsync */
141 NULL, 78, 1152, 864, 9090, 228, 88, 32, 0, 84, 12,
142 0, FB_VMODE_NONINTERLACED
143 }, {
144 /* 1280x1024 @ 70 Hz, 74.59 kHz hsync */
145 NULL, 70, 1280, 1024, 7905, 224, 32, 28, 8, 160, 8,
146 0, FB_VMODE_NONINTERLACED
147 }, {
148 /* 1600x1200 @ 60Hz, 75.00 kHz hsync */
149 NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3,
150 FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
151 }, {
152 /* 1152x864 @ 84 Hz, 76.0 kHz hsync */
153 NULL, 84, 1152, 864, 7407, 184, 312, 32, 0, 128, 12,
154 0, FB_VMODE_NONINTERLACED
155 }, {
156 /* 1280x1024 @ 74 Hz, 78.85 kHz hsync */
157 NULL, 74, 1280, 1024, 7407, 256, 32, 34, 3, 144, 3,
158 0, FB_VMODE_NONINTERLACED
159 }, {
160 /* 1024x768 @ 100Hz, 80.21 kHz hsync */
161 NULL, 100, 1024, 768, 8658, 192, 32, 21, 3, 192, 10,
162 0, FB_VMODE_NONINTERLACED
163 }, {
164 /* 1280x1024 @ 76 Hz, 81.13 kHz hsync */
165 NULL, 76, 1280, 1024, 7407, 248, 32, 34, 3, 104, 3,
166 0, FB_VMODE_NONINTERLACED
167 }, {
168 /* 1600x1200 @ 70 Hz, 87.50 kHz hsync */
169 NULL, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3,
170 0, FB_VMODE_NONINTERLACED
171 }, {
172 /* 1152x864 @ 100 Hz, 89.62 kHz hsync */
173 NULL, 100, 1152, 864, 7264, 224, 32, 17, 2, 128, 19,
174 0, FB_VMODE_NONINTERLACED
175 }, {
176 /* 1280x1024 @ 85 Hz, 91.15 kHz hsync */
177 NULL, 85, 1280, 1024, 6349, 224, 64, 44, 1, 160, 3,
178 FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
179 }, {
180 /* 1600x1200 @ 75 Hz, 93.75 kHz hsync */
181 NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3,
182 FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
183 }, {
184 /* 1680x1050 @ 60 Hz, 65.191 kHz hsync */
185 NULL, 60, 1680, 1050, 6848, 280, 104, 30, 3, 176, 6,
186 FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
187 }, {
188 /* 1600x1200 @ 85 Hz, 105.77 kHz hsync */
189 NULL, 85, 1600, 1200, 4545, 272, 16, 37, 4, 192, 3,
190 FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
191 }, {
192 /* 1280x1024 @ 100 Hz, 107.16 kHz hsync */
193 NULL, 100, 1280, 1024, 5502, 256, 32, 26, 7, 128, 15,
194 0, FB_VMODE_NONINTERLACED
195 }, {
196 /* 1800x1440 @ 64Hz, 96.15 kHz hsync */
197 NULL, 64, 1800, 1440, 4347, 304, 96, 46, 1, 192, 3,
198 FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
199 }, {
200 /* 1800x1440 @ 70Hz, 104.52 kHz hsync */
201 NULL, 70, 1800, 1440, 4000, 304, 96, 46, 1, 192, 3,
202 FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
203 }, {
204 /* 512x384 @ 78 Hz, 31.50 kHz hsync */
205 NULL, 78, 512, 384, 49603, 48, 16, 16, 1, 64, 3,
206 0, FB_VMODE_NONINTERLACED
207 }, {
208 /* 512x384 @ 85 Hz, 34.38 kHz hsync */
209 NULL, 85, 512, 384, 45454, 48, 16, 16, 1, 64, 3,
210 0, FB_VMODE_NONINTERLACED
211 }, {
212 /* 320x200 @ 70 Hz, 31.5 kHz hsync, 8:5 aspect ratio */
213 NULL, 70, 320, 200, 79440, 16, 16, 20, 4, 48, 1,
214 0, FB_VMODE_DOUBLE
215 }, {
216 /* 320x240 @ 60 Hz, 31.5 kHz hsync, 4:3 aspect ratio */
217 NULL, 60, 320, 240, 79440, 16, 16, 16, 5, 48, 1,
218 0, FB_VMODE_DOUBLE
219 }, {
220 /* 320x240 @ 72 Hz, 36.5 kHz hsync */
221 NULL, 72, 320, 240, 63492, 16, 16, 16, 4, 48, 2,
222 0, FB_VMODE_DOUBLE
223 }, {
224 /* 400x300 @ 56 Hz, 35.2 kHz hsync, 4:3 aspect ratio */
225 NULL, 56, 400, 300, 55555, 64, 16, 10, 1, 32, 1,
226 0, FB_VMODE_DOUBLE
227 }, {
228 /* 400x300 @ 60 Hz, 37.8 kHz hsync */
229 NULL, 60, 400, 300, 50000, 48, 16, 11, 1, 64, 2,
230 0, FB_VMODE_DOUBLE
231 }, {
232 /* 400x300 @ 72 Hz, 48.0 kHz hsync */
233 NULL, 72, 400, 300, 40000, 32, 24, 11, 19, 64, 3,
234 0, FB_VMODE_DOUBLE
235 }, {
236 /* 480x300 @ 56 Hz, 35.2 kHz hsync, 8:5 aspect ratio */
237 NULL, 56, 480, 300, 46176, 80, 16, 10, 1, 40, 1,
238 0, FB_VMODE_DOUBLE
239 }, {
240 /* 480x300 @ 60 Hz, 37.8 kHz hsync */
241 NULL, 60, 480, 300, 41858, 56, 16, 11, 1, 80, 2,
242 0, FB_VMODE_DOUBLE
243 }, {
244 /* 480x300 @ 63 Hz, 39.6 kHz hsync */
245 NULL, 63, 480, 300, 40000, 56, 16, 11, 1, 80, 2,
246 0, FB_VMODE_DOUBLE
247 }, {
248 /* 480x300 @ 72 Hz, 48.0 kHz hsync */
249 NULL, 72, 480, 300, 33386, 40, 24, 11, 19, 80, 3,
250 0, FB_VMODE_DOUBLE
251 }, {
252 /* 1920x1200 @ 60 Hz, 74.5 Khz hsync */
253 NULL, 60, 1920, 1200, 5177, 128, 336, 1, 38, 208, 3,
254 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
255 FB_VMODE_NONINTERLACED
256 }, {
257 /* 1152x768, 60 Hz, PowerBook G4 Titanium I and II */
258 NULL, 60, 1152, 768, 14047, 158, 26, 29, 3, 136, 6,
259 FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
260 }, {
261 /* 1366x768, 60 Hz, 47.403 kHz hsync, WXGA 16:9 aspect ratio */
262 NULL, 60, 1366, 768, 13806, 120, 10, 14, 3, 32, 5,
263 0, FB_VMODE_NONINTERLACED
264 }, {
265 /* 1280x800, 60 Hz, 47.403 kHz hsync, WXGA 16:10 aspect ratio */
266 NULL, 60, 1280, 800, 12048, 200, 64, 24, 1, 136, 3,
267 0, FB_VMODE_NONINTERLACED
268 }, {
269 /* 720x576i @ 50 Hz, 15.625 kHz hsync (PAL RGB) */
270 NULL, 50, 720, 576, 74074, 64, 16, 39, 5, 64, 5,
271 0, FB_VMODE_INTERLACED
272 }, {
273 /* 800x520i @ 50 Hz, 15.625 kHz hsync (PAL RGB) */
274 NULL, 50, 800, 520, 58823, 144, 64, 72, 28, 80, 5,
275 0, FB_VMODE_INTERLACED
276 },
277 };
278
279 #ifdef CONFIG_FB_MODE_HELPERS
280 const struct fb_videomode vesa_modes[] = {
281 /* 0 640x350-85 VESA */
282 { NULL, 85, 640, 350, 31746, 96, 32, 60, 32, 64, 3,
283 FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA},
284 /* 1 640x400-85 VESA */
285 { NULL, 85, 640, 400, 31746, 96, 32, 41, 01, 64, 3,
286 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
287 /* 2 720x400-85 VESA */
288 { NULL, 85, 721, 400, 28169, 108, 36, 42, 01, 72, 3,
289 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
290 /* 3 640x480-60 VESA */
291 { NULL, 60, 640, 480, 39682, 48, 16, 33, 10, 96, 2,
292 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
293 /* 4 640x480-72 VESA */
294 { NULL, 72, 640, 480, 31746, 128, 24, 29, 9, 40, 2,
295 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
296 /* 5 640x480-75 VESA */
297 { NULL, 75, 640, 480, 31746, 120, 16, 16, 01, 64, 3,
298 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
299 /* 6 640x480-85 VESA */
300 { NULL, 85, 640, 480, 27777, 80, 56, 25, 01, 56, 3,
301 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
302 /* 7 800x600-56 VESA */
303 { NULL, 56, 800, 600, 27777, 128, 24, 22, 01, 72, 2,
304 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
305 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
306 /* 8 800x600-60 VESA */
307 { NULL, 60, 800, 600, 25000, 88, 40, 23, 01, 128, 4,
308 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
309 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
310 /* 9 800x600-72 VESA */
311 { NULL, 72, 800, 600, 20000, 64, 56, 23, 37, 120, 6,
312 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
313 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
314 /* 10 800x600-75 VESA */
315 { NULL, 75, 800, 600, 20202, 160, 16, 21, 01, 80, 3,
316 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
317 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
318 /* 11 800x600-85 VESA */
319 { NULL, 85, 800, 600, 17761, 152, 32, 27, 01, 64, 3,
320 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
321 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
322 /* 12 1024x768i-43 VESA */
323 { NULL, 43, 1024, 768, 22271, 56, 8, 41, 0, 176, 8,
324 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
325 FB_VMODE_INTERLACED, FB_MODE_IS_VESA },
326 /* 13 1024x768-60 VESA */
327 { NULL, 60, 1024, 768, 15384, 160, 24, 29, 3, 136, 6,
328 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
329 /* 14 1024x768-70 VESA */
330 { NULL, 70, 1024, 768, 13333, 144, 24, 29, 3, 136, 6,
331 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
332 /* 15 1024x768-75 VESA */
333 { NULL, 75, 1024, 768, 12690, 176, 16, 28, 1, 96, 3,
334 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
335 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
336 /* 16 1024x768-85 VESA */
337 { NULL, 85, 1024, 768, 10582, 208, 48, 36, 1, 96, 3,
338 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
339 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
340 /* 17 1152x864-75 VESA */
341 { NULL, 75, 1152, 864, 9259, 256, 64, 32, 1, 128, 3,
342 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
343 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
344 /* 18 1280x960-60 VESA */
345 { NULL, 60, 1280, 960, 9259, 312, 96, 36, 1, 112, 3,
346 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
347 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
348 /* 19 1280x960-85 VESA */
349 { NULL, 85, 1280, 960, 6734, 224, 64, 47, 1, 160, 3,
350 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
351 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
352 /* 20 1280x1024-60 VESA */
353 { NULL, 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3,
354 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
355 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
356 /* 21 1280x1024-75 VESA */
357 { NULL, 75, 1280, 1024, 7407, 248, 16, 38, 1, 144, 3,
358 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
359 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
360 /* 22 1280x1024-85 VESA */
361 { NULL, 85, 1280, 1024, 6349, 224, 64, 44, 1, 160, 3,
362 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
363 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
364 /* 23 1600x1200-60 VESA */
365 { NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3,
366 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
367 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
368 /* 24 1600x1200-65 VESA */
369 { NULL, 65, 1600, 1200, 5698, 304, 64, 46, 1, 192, 3,
370 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
371 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
372 /* 25 1600x1200-70 VESA */
373 { NULL, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3,
374 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
375 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
376 /* 26 1600x1200-75 VESA */
377 { NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3,
378 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
379 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
380 /* 27 1600x1200-85 VESA */
381 { NULL, 85, 1600, 1200, 4357, 304, 64, 46, 1, 192, 3,
382 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
383 FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
384 /* 28 1792x1344-60 VESA */
385 { NULL, 60, 1792, 1344, 4882, 328, 128, 46, 1, 200, 3,
386 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
387 /* 29 1792x1344-75 VESA */
388 { NULL, 75, 1792, 1344, 3831, 352, 96, 69, 1, 216, 3,
389 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
390 /* 30 1856x1392-60 VESA */
391 { NULL, 60, 1856, 1392, 4580, 352, 96, 43, 1, 224, 3,
392 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
393 /* 31 1856x1392-75 VESA */
394 { NULL, 75, 1856, 1392, 3472, 352, 128, 104, 1, 224, 3,
395 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
396 /* 32 1920x1440-60 VESA */
397 { NULL, 60, 1920, 1440, 4273, 344, 128, 56, 1, 200, 3,
398 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
399 /* 33 1920x1440-75 VESA */
400 { NULL, 75, 1920, 1440, 3367, 352, 144, 56, 1, 224, 3,
401 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
402 };
403 EXPORT_SYMBOL(vesa_modes);
404 #endif /* CONFIG_FB_MODE_HELPERS */
405
406 /**
407 * fb_try_mode - test a video mode
408 * @var: frame buffer user defined part of display
409 * @info: frame buffer info structure
410 * @mode: frame buffer video mode structure
411 * @bpp: color depth in bits per pixel
412 *
413 * Tries a video mode to test it's validity for device @info.
414 *
415 * Returns 1 on success.
416 *
417 */
418
419 static int fb_try_mode(struct fb_var_screeninfo *var, struct fb_info *info,
420 const struct fb_videomode *mode, unsigned int bpp)
421 {
422 int err = 0;
423
424 DPRINTK("Trying mode %s %dx%d-%d@%d\n", mode->name ? mode->name : "noname",
425 mode->xres, mode->yres, bpp, mode->refresh);
426 var->xres = mode->xres;
427 var->yres = mode->yres;
428 var->xres_virtual = mode->xres;
429 var->yres_virtual = mode->yres;
430 var->xoffset = 0;
431 var->yoffset = 0;
432 var->bits_per_pixel = bpp;
433 var->activate |= FB_ACTIVATE_TEST;
434 var->pixclock = mode->pixclock;
435 var->left_margin = mode->left_margin;
436 var->right_margin = mode->right_margin;
437 var->upper_margin = mode->upper_margin;
438 var->lower_margin = mode->lower_margin;
439 var->hsync_len = mode->hsync_len;
440 var->vsync_len = mode->vsync_len;
441 var->sync = mode->sync;
442 var->vmode = mode->vmode;
443 if (info->fbops->fb_check_var)
444 err = info->fbops->fb_check_var(var, info);
445 var->activate &= ~FB_ACTIVATE_TEST;
446 return err;
447 }
448
449 /**
450 * fb_find_mode - finds a valid video mode
451 * @var: frame buffer user defined part of display
452 * @info: frame buffer info structure
453 * @mode_option: string video mode to find
454 * @db: video mode database
455 * @dbsize: size of @db
456 * @default_mode: default video mode to fall back to
457 * @default_bpp: default color depth in bits per pixel
458 *
459 * Finds a suitable video mode, starting with the specified mode
460 * in @mode_option with fallback to @default_mode. If
461 * @default_mode fails, all modes in the video mode database will
462 * be tried.
463 *
464 * Valid mode specifiers for @mode_option:
465 *
466 * <xres>x<yres>[M][R][-<bpp>][@<refresh>][i][m] or
467 * <name>[-<bpp>][@<refresh>]
468 *
469 * with <xres>, <yres>, <bpp> and <refresh> decimal numbers and
470 * <name> a string.
471 *
472 * If 'M' is present after yres (and before refresh/bpp if present),
473 * the function will compute the timings using VESA(tm) Coordinated
474 * Video Timings (CVT). If 'R' is present after 'M', will compute with
475 * reduced blanking (for flatpanels). If 'i' is present, compute
476 * interlaced mode. If 'm' is present, add margins equal to 1.8%
477 * of xres rounded down to 8 pixels, and 1.8% of yres. The char
478 * 'i' and 'm' must be after 'M' and 'R'. Example:
479 *
480 * 1024x768MR-8@60m - Reduced blank with margins at 60Hz.
481 *
482 * NOTE: The passed struct @var is _not_ cleared! This allows you
483 * to supply values for e.g. the grayscale and accel_flags fields.
484 *
485 * Returns zero for failure, 1 if using specified @mode_option,
486 * 2 if using specified @mode_option with an ignored refresh rate,
487 * 3 if default mode is used, 4 if fall back to any valid mode.
488 *
489 */
490
491 int fb_find_mode(struct fb_var_screeninfo *var,
492 struct fb_info *info, const char *mode_option,
493 const struct fb_videomode *db, unsigned int dbsize,
494 const struct fb_videomode *default_mode,
495 unsigned int default_bpp)
496 {
497 int i;
498
499 /* Set up defaults */
500 if (!db) {
501 db = modedb;
502 dbsize = ARRAY_SIZE(modedb);
503 }
504
505 if (!default_mode)
506 default_mode = &db[0];
507
508 if (!default_bpp)
509 default_bpp = 8;
510
511 /* Did the user specify a video mode? */
512 if (!mode_option)
513 mode_option = fb_mode_option;
514 if (mode_option) {
515 const char *name = mode_option;
516 unsigned int namelen = strlen(name);
517 int res_specified = 0, bpp_specified = 0, refresh_specified = 0;
518 unsigned int xres = 0, yres = 0, bpp = default_bpp, refresh = 0;
519 int yres_specified = 0, cvt = 0, rb = 0, interlace = 0, margins = 0;
520 u32 best, diff, tdiff;
521
522 for (i = namelen-1; i >= 0; i--) {
523 switch (name[i]) {
524 case '@':
525 namelen = i;
526 if (!refresh_specified && !bpp_specified &&
527 !yres_specified) {
528 refresh = simple_strtol(&name[i+1], NULL, 10);
529 refresh_specified = 1;
530 if (cvt || rb)
531 cvt = 0;
532 } else
533 goto done;
534 break;
535 case '-':
536 namelen = i;
537 if (!bpp_specified && !yres_specified) {
538 bpp = simple_strtol(&name[i+1], NULL, 10);
539 bpp_specified = 1;
540 if (cvt || rb)
541 cvt = 0;
542 } else
543 goto done;
544 break;
545 case 'x':
546 if (!yres_specified) {
547 yres = simple_strtol(&name[i+1], NULL, 10);
548 yres_specified = 1;
549 } else
550 goto done;
551 break;
552 case '0' ... '9':
553 break;
554 case 'M':
555 if (!yres_specified)
556 cvt = 1;
557 break;
558 case 'R':
559 if (!cvt)
560 rb = 1;
561 break;
562 case 'm':
563 if (!cvt)
564 margins = 1;
565 break;
566 case 'i':
567 if (!cvt)
568 interlace = 1;
569 break;
570 default:
571 goto done;
572 }
573 }
574 if (i < 0 && yres_specified) {
575 xres = simple_strtol(name, NULL, 10);
576 res_specified = 1;
577 }
578 done:
579 if (cvt) {
580 struct fb_videomode cvt_mode;
581 int ret;
582
583 DPRINTK("CVT mode %dx%d@%dHz%s%s%s\n", xres, yres,
584 (refresh) ? refresh : 60, (rb) ? " reduced blanking" :
585 "", (margins) ? " with margins" : "", (interlace) ?
586 " interlaced" : "");
587
588 memset(&cvt_mode, 0, sizeof(cvt_mode));
589 cvt_mode.xres = xres;
590 cvt_mode.yres = yres;
591 cvt_mode.refresh = (refresh) ? refresh : 60;
592
593 if (interlace)
594 cvt_mode.vmode |= FB_VMODE_INTERLACED;
595 else
596 cvt_mode.vmode &= ~FB_VMODE_INTERLACED;
597
598 ret = fb_find_mode_cvt(&cvt_mode, margins, rb);
599
600 if (!ret && !fb_try_mode(var, info, &cvt_mode, bpp)) {
601 DPRINTK("modedb CVT: CVT mode ok\n");
602 return 1;
603 }
604
605 DPRINTK("CVT mode invalid, getting mode from database\n");
606 }
607
608 DPRINTK("Trying specified video mode%s %ix%i\n",
609 refresh_specified ? "" : " (ignoring refresh rate)", xres, yres);
610
611 if (!refresh_specified) {
612 /*
613 * If the caller has provided a custom mode database and a
614 * valid monspecs structure, we look for the mode with the
615 * highest refresh rate. Otherwise we play it safe it and
616 * try to find a mode with a refresh rate closest to the
617 * standard 60 Hz.
618 */
619 if (db != modedb &&
620 info->monspecs.vfmin && info->monspecs.vfmax &&
621 info->monspecs.hfmin && info->monspecs.hfmax &&
622 info->monspecs.dclkmax) {
623 refresh = 1000;
624 } else {
625 refresh = 60;
626 }
627 }
628
629 diff = -1;
630 best = -1;
631 for (i = 0; i < dbsize; i++) {
632 if ((name_matches(db[i], name, namelen) ||
633 (res_specified && res_matches(db[i], xres, yres))) &&
634 !fb_try_mode(var, info, &db[i], bpp)) {
635 if (refresh_specified && db[i].refresh == refresh) {
636 return 1;
637 } else {
638 if (abs(db[i].refresh - refresh) < diff) {
639 diff = abs(db[i].refresh - refresh);
640 best = i;
641 }
642 }
643 }
644 }
645 if (best != -1) {
646 fb_try_mode(var, info, &db[best], bpp);
647 return (refresh_specified) ? 2 : 1;
648 }
649
650 diff = 2 * (xres + yres);
651 best = -1;
652 DPRINTK("Trying best-fit modes\n");
653 for (i = 0; i < dbsize; i++) {
654 DPRINTK("Trying %ix%i\n", db[i].xres, db[i].yres);
655 if (!fb_try_mode(var, info, &db[i], bpp)) {
656 tdiff = abs(db[i].xres - xres) +
657 abs(db[i].yres - yres);
658
659 /*
660 * Penalize modes with resolutions smaller
661 * than requested.
662 */
663 if (xres > db[i].xres || yres > db[i].yres)
664 tdiff += xres + yres;
665
666 if (diff > tdiff) {
667 diff = tdiff;
668 best = i;
669 }
670 }
671 }
672 if (best != -1) {
673 fb_try_mode(var, info, &db[best], bpp);
674 return 5;
675 }
676 }
677
678 DPRINTK("Trying default video mode\n");
679 if (!fb_try_mode(var, info, default_mode, default_bpp))
680 return 3;
681
682 DPRINTK("Trying all modes\n");
683 for (i = 0; i < dbsize; i++)
684 if (!fb_try_mode(var, info, &db[i], default_bpp))
685 return 4;
686
687 DPRINTK("No valid mode found\n");
688 return 0;
689 }
690
691 /**
692 * fb_var_to_videomode - convert fb_var_screeninfo to fb_videomode
693 * @mode: pointer to struct fb_videomode
694 * @var: pointer to struct fb_var_screeninfo
695 */
696 void fb_var_to_videomode(struct fb_videomode *mode,
697 const struct fb_var_screeninfo *var)
698 {
699 u32 pixclock, hfreq, htotal, vtotal;
700
701 mode->name = NULL;
702 mode->xres = var->xres;
703 mode->yres = var->yres;
704 mode->pixclock = var->pixclock;
705 mode->hsync_len = var->hsync_len;
706 mode->vsync_len = var->vsync_len;
707 mode->left_margin = var->left_margin;
708 mode->right_margin = var->right_margin;
709 mode->upper_margin = var->upper_margin;
710 mode->lower_margin = var->lower_margin;
711 mode->sync = var->sync;
712 mode->vmode = var->vmode & FB_VMODE_MASK;
713 mode->flag = FB_MODE_IS_FROM_VAR;
714 mode->refresh = 0;
715
716 if (!var->pixclock)
717 return;
718
719 pixclock = PICOS2KHZ(var->pixclock) * 1000;
720
721 htotal = var->xres + var->right_margin + var->hsync_len +
722 var->left_margin;
723 vtotal = var->yres + var->lower_margin + var->vsync_len +
724 var->upper_margin;
725
726 if (var->vmode & FB_VMODE_INTERLACED)
727 vtotal /= 2;
728 if (var->vmode & FB_VMODE_DOUBLE)
729 vtotal *= 2;
730
731 hfreq = pixclock/htotal;
732 mode->refresh = hfreq/vtotal;
733 }
734
735 /**
736 * fb_videomode_to_var - convert fb_videomode to fb_var_screeninfo
737 * @var: pointer to struct fb_var_screeninfo
738 * @mode: pointer to struct fb_videomode
739 */
740 void fb_videomode_to_var(struct fb_var_screeninfo *var,
741 const struct fb_videomode *mode)
742 {
743 var->xres = mode->xres;
744 var->yres = mode->yres;
745 var->xres_virtual = mode->xres;
746 var->yres_virtual = mode->yres;
747 var->xoffset = 0;
748 var->yoffset = 0;
749 var->pixclock = mode->pixclock;
750 var->left_margin = mode->left_margin;
751 var->right_margin = mode->right_margin;
752 var->upper_margin = mode->upper_margin;
753 var->lower_margin = mode->lower_margin;
754 var->hsync_len = mode->hsync_len;
755 var->vsync_len = mode->vsync_len;
756 var->sync = mode->sync;
757 var->vmode = mode->vmode & FB_VMODE_MASK;
758 }
759
760 /**
761 * fb_mode_is_equal - compare 2 videomodes
762 * @mode1: first videomode
763 * @mode2: second videomode
764 *
765 * RETURNS:
766 * 1 if equal, 0 if not
767 */
768 int fb_mode_is_equal(const struct fb_videomode *mode1,
769 const struct fb_videomode *mode2)
770 {
771 return (mode1->xres == mode2->xres &&
772 mode1->yres == mode2->yres &&
773 mode1->pixclock == mode2->pixclock &&
774 mode1->hsync_len == mode2->hsync_len &&
775 mode1->vsync_len == mode2->vsync_len &&
776 mode1->left_margin == mode2->left_margin &&
777 mode1->right_margin == mode2->right_margin &&
778 mode1->upper_margin == mode2->upper_margin &&
779 mode1->lower_margin == mode2->lower_margin &&
780 mode1->sync == mode2->sync &&
781 mode1->vmode == mode2->vmode);
782 }
783
784 /**
785 * fb_find_best_mode - find best matching videomode
786 * @var: pointer to struct fb_var_screeninfo
787 * @head: pointer to struct list_head of modelist
788 *
789 * RETURNS:
790 * struct fb_videomode, NULL if none found
791 *
792 * IMPORTANT:
793 * This function assumes that all modelist entries in
794 * info->modelist are valid.
795 *
796 * NOTES:
797 * Finds best matching videomode which has an equal or greater dimension than
798 * var->xres and var->yres. If more than 1 videomode is found, will return
799 * the videomode with the highest refresh rate
800 */
801 const struct fb_videomode *fb_find_best_mode(const struct fb_var_screeninfo *var,
802 struct list_head *head)
803 {
804 struct list_head *pos;
805 struct fb_modelist *modelist;
806 struct fb_videomode *mode, *best = NULL;
807 u32 diff = -1;
808
809 list_for_each(pos, head) {
810 u32 d;
811
812 modelist = list_entry(pos, struct fb_modelist, list);
813 mode = &modelist->mode;
814
815 if (mode->xres >= var->xres && mode->yres >= var->yres) {
816 d = (mode->xres - var->xres) +
817 (mode->yres - var->yres);
818 if (diff > d) {
819 diff = d;
820 best = mode;
821 } else if (diff == d && best &&
822 mode->refresh > best->refresh)
823 best = mode;
824 }
825 }
826 return best;
827 }
828
829 /**
830 * fb_find_nearest_mode - find closest videomode
831 *
832 * @mode: pointer to struct fb_videomode
833 * @head: pointer to modelist
834 *
835 * Finds best matching videomode, smaller or greater in dimension.
836 * If more than 1 videomode is found, will return the videomode with
837 * the closest refresh rate.
838 */
839 const struct fb_videomode *fb_find_nearest_mode(const struct fb_videomode *mode,
840 struct list_head *head)
841 {
842 struct list_head *pos;
843 struct fb_modelist *modelist;
844 struct fb_videomode *cmode, *best = NULL;
845 u32 diff = -1, diff_refresh = -1;
846
847 list_for_each(pos, head) {
848 u32 d;
849
850 modelist = list_entry(pos, struct fb_modelist, list);
851 cmode = &modelist->mode;
852
853 d = abs(cmode->xres - mode->xres) +
854 abs(cmode->yres - mode->yres);
855 if (diff > d) {
856 diff = d;
857 best = cmode;
858 } else if (diff == d) {
859 d = abs(cmode->refresh - mode->refresh);
860 if (diff_refresh > d) {
861 diff_refresh = d;
862 best = cmode;
863 }
864 }
865 }
866
867 return best;
868 }
869
870 /**
871 * fb_match_mode - find a videomode which exactly matches the timings in var
872 * @var: pointer to struct fb_var_screeninfo
873 * @head: pointer to struct list_head of modelist
874 *
875 * RETURNS:
876 * struct fb_videomode, NULL if none found
877 */
878 const struct fb_videomode *fb_match_mode(const struct fb_var_screeninfo *var,
879 struct list_head *head)
880 {
881 struct list_head *pos;
882 struct fb_modelist *modelist;
883 struct fb_videomode *m, mode;
884
885 fb_var_to_videomode(&mode, var);
886 list_for_each(pos, head) {
887 modelist = list_entry(pos, struct fb_modelist, list);
888 m = &modelist->mode;
889 if (fb_mode_is_equal(m, &mode))
890 return m;
891 }
892 return NULL;
893 }
894
895 /**
896 * fb_add_videomode - adds videomode entry to modelist
897 * @mode: videomode to add
898 * @head: struct list_head of modelist
899 *
900 * NOTES:
901 * Will only add unmatched mode entries
902 */
903 int fb_add_videomode(const struct fb_videomode *mode, struct list_head *head)
904 {
905 struct list_head *pos;
906 struct fb_modelist *modelist;
907 struct fb_videomode *m;
908 int found = 0;
909
910 list_for_each(pos, head) {
911 modelist = list_entry(pos, struct fb_modelist, list);
912 m = &modelist->mode;
913 if (fb_mode_is_equal(m, mode)) {
914 found = 1;
915 break;
916 }
917 }
918 if (!found) {
919 modelist = kmalloc(sizeof(struct fb_modelist),
920 GFP_KERNEL);
921
922 if (!modelist)
923 return -ENOMEM;
924 modelist->mode = *mode;
925 list_add(&modelist->list, head);
926 }
927 return 0;
928 }
929
930 /**
931 * fb_delete_videomode - removed videomode entry from modelist
932 * @mode: videomode to remove
933 * @head: struct list_head of modelist
934 *
935 * NOTES:
936 * Will remove all matching mode entries
937 */
938 void fb_delete_videomode(const struct fb_videomode *mode,
939 struct list_head *head)
940 {
941 struct list_head *pos, *n;
942 struct fb_modelist *modelist;
943 struct fb_videomode *m;
944
945 list_for_each_safe(pos, n, head) {
946 modelist = list_entry(pos, struct fb_modelist, list);
947 m = &modelist->mode;
948 if (fb_mode_is_equal(m, mode)) {
949 list_del(pos);
950 kfree(pos);
951 }
952 }
953 }
954
955 /**
956 * fb_destroy_modelist - destroy modelist
957 * @head: struct list_head of modelist
958 */
959 void fb_destroy_modelist(struct list_head *head)
960 {
961 struct list_head *pos, *n;
962
963 list_for_each_safe(pos, n, head) {
964 list_del(pos);
965 kfree(pos);
966 }
967 }
968 EXPORT_SYMBOL_GPL(fb_destroy_modelist);
969
970 /**
971 * fb_videomode_to_modelist - convert mode array to mode list
972 * @modedb: array of struct fb_videomode
973 * @num: number of entries in array
974 * @head: struct list_head of modelist
975 */
976 void fb_videomode_to_modelist(const struct fb_videomode *modedb, int num,
977 struct list_head *head)
978 {
979 int i;
980
981 INIT_LIST_HEAD(head);
982
983 for (i = 0; i < num; i++) {
984 if (fb_add_videomode(&modedb[i], head))
985 return;
986 }
987 }
988
989 const struct fb_videomode *fb_find_best_display(const struct fb_monspecs *specs,
990 struct list_head *head)
991 {
992 struct list_head *pos;
993 struct fb_modelist *modelist;
994 const struct fb_videomode *m, *m1 = NULL, *md = NULL, *best = NULL;
995 int first = 0;
996
997 if (!head->prev || !head->next || list_empty(head))
998 goto finished;
999
1000 /* get the first detailed mode and the very first mode */
1001 list_for_each(pos, head) {
1002 modelist = list_entry(pos, struct fb_modelist, list);
1003 m = &modelist->mode;
1004
1005 if (!first) {
1006 m1 = m;
1007 first = 1;
1008 }
1009
1010 if (m->flag & FB_MODE_IS_FIRST) {
1011 md = m;
1012 break;
1013 }
1014 }
1015
1016 /* first detailed timing is preferred */
1017 if (specs->misc & FB_MISC_1ST_DETAIL) {
1018 best = md;
1019 goto finished;
1020 }
1021
1022 /* find best mode based on display width and height */
1023 if (specs->max_x && specs->max_y) {
1024 struct fb_var_screeninfo var;
1025
1026 memset(&var, 0, sizeof(struct fb_var_screeninfo));
1027 var.xres = (specs->max_x * 7200)/254;
1028 var.yres = (specs->max_y * 7200)/254;
1029 m = fb_find_best_mode(&var, head);
1030 if (m) {
1031 best = m;
1032 goto finished;
1033 }
1034 }
1035
1036 /* use first detailed mode */
1037 if (md) {
1038 best = md;
1039 goto finished;
1040 }
1041
1042 /* last resort, use the very first mode */
1043 best = m1;
1044 finished:
1045 return best;
1046 }
1047 EXPORT_SYMBOL(fb_find_best_display);
1048
1049 EXPORT_SYMBOL(fb_videomode_to_var);
1050 EXPORT_SYMBOL(fb_var_to_videomode);
1051 EXPORT_SYMBOL(fb_mode_is_equal);
1052 EXPORT_SYMBOL(fb_add_videomode);
1053 EXPORT_SYMBOL(fb_match_mode);
1054 EXPORT_SYMBOL(fb_find_best_mode);
1055 EXPORT_SYMBOL(fb_find_nearest_mode);
1056 EXPORT_SYMBOL(fb_videomode_to_modelist);
1057 EXPORT_SYMBOL(fb_find_mode);