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/slab.h> |
16 | #include <linux/fb.h> |
17 | #include <linux/kernel.h> |
18 | |
19 | #undef DEBUG |
20 | |
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)) |
25 | |
26 | #ifdef DEBUG |
27 | #define DPRINTK(fmt, args...) printk("modedb %s: " fmt, __func__ , ## args) |
28 | #else |
29 | #define DPRINTK(fmt, args...) |
30 | #endif |
31 | |
32 | /* |
33 | * Standard video mode definitions (taken from XFree86) |
34 | */ |
35 | |
36 | static const struct fb_videomode modedb[] = { |
37 | |
38 | /* 640x400 @ 70 Hz, 31.5 kHz hsync */ |
39 | { NULL, 70, 640, 400, 39721, 40, 24, 39, 9, 96, 2, 0, |
40 | FB_VMODE_NONINTERLACED }, |
41 | |
42 | /* 640x480 @ 60 Hz, 31.5 kHz hsync */ |
43 | { NULL, 60, 640, 480, 39721, 40, 24, 32, 11, 96, 2, 0, |
44 | FB_VMODE_NONINTERLACED }, |
45 | |
46 | /* 800x600 @ 56 Hz, 35.15 kHz hsync */ |
47 | { NULL, 56, 800, 600, 27777, 128, 24, 22, 1, 72, 2, 0, |
48 | FB_VMODE_NONINTERLACED }, |
49 | |
50 | /* 1024x768 @ 87 Hz interlaced, 35.5 kHz hsync */ |
51 | { NULL, 87, 1024, 768, 22271, 56, 24, 33, 8, 160, 8, 0, |
52 | FB_VMODE_INTERLACED }, |
53 | |
54 | /* 640x400 @ 85 Hz, 37.86 kHz hsync */ |
55 | { NULL, 85, 640, 400, 31746, 96, 32, 41, 1, 64, 3, |
56 | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED }, |
57 | |
58 | /* 640x480 @ 72 Hz, 36.5 kHz hsync */ |
59 | { NULL, 72, 640, 480, 31746, 144, 40, 30, 8, 40, 3, 0, |
60 | FB_VMODE_NONINTERLACED }, |
61 | |
62 | /* 640x480 @ 75 Hz, 37.50 kHz hsync */ |
63 | { NULL, 75, 640, 480, 31746, 120, 16, 16, 1, 64, 3, 0, |
64 | FB_VMODE_NONINTERLACED }, |
65 | |
66 | /* 800x600 @ 60 Hz, 37.8 kHz hsync */ |
67 | { NULL, 60, 800, 600, 25000, 88, 40, 23, 1, 128, 4, |
68 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
69 | FB_VMODE_NONINTERLACED }, |
70 | |
71 | /* 640x480 @ 85 Hz, 43.27 kHz hsync */ |
72 | { NULL, 85, 640, 480, 27777, 80, 56, 25, 1, 56, 3, 0, |
73 | FB_VMODE_NONINTERLACED }, |
74 | |
75 | /* 1152x864 @ 89 Hz interlaced, 44 kHz hsync */ |
76 | { NULL, 89, 1152, 864, 15384, 96, 16, 110, 1, 216, 10, 0, |
77 | FB_VMODE_INTERLACED }, |
78 | /* 800x600 @ 72 Hz, 48.0 kHz hsync */ |
79 | { NULL, 72, 800, 600, 20000, 64, 56, 23, 37, 120, 6, |
80 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
81 | FB_VMODE_NONINTERLACED }, |
82 | |
83 | /* 1024x768 @ 60 Hz, 48.4 kHz hsync */ |
84 | { NULL, 60, 1024, 768, 15384, 168, 8, 29, 3, 144, 6, 0, |
85 | FB_VMODE_NONINTERLACED }, |
86 | |
87 | /* 640x480 @ 100 Hz, 53.01 kHz hsync */ |
88 | { NULL, 100, 640, 480, 21834, 96, 32, 36, 8, 96, 6, 0, |
89 | FB_VMODE_NONINTERLACED }, |
90 | |
91 | /* 1152x864 @ 60 Hz, 53.5 kHz hsync */ |
92 | { NULL, 60, 1152, 864, 11123, 208, 64, 16, 4, 256, 8, 0, |
93 | FB_VMODE_NONINTERLACED }, |
94 | |
95 | /* 800x600 @ 85 Hz, 55.84 kHz hsync */ |
96 | { NULL, 85, 800, 600, 16460, 160, 64, 36, 16, 64, 5, 0, |
97 | FB_VMODE_NONINTERLACED }, |
98 | |
99 | /* 1024x768 @ 70 Hz, 56.5 kHz hsync */ |
100 | { NULL, 70, 1024, 768, 13333, 144, 24, 29, 3, 136, 6, 0, |
101 | FB_VMODE_NONINTERLACED }, |
102 | |
103 | /* 1280x1024 @ 87 Hz interlaced, 51 kHz hsync */ |
104 | { NULL, 87, 1280, 1024, 12500, 56, 16, 128, 1, 216, 12, 0, |
105 | FB_VMODE_INTERLACED }, |
106 | |
107 | /* 800x600 @ 100 Hz, 64.02 kHz hsync */ |
108 | { NULL, 100, 800, 600, 14357, 160, 64, 30, 4, 64, 6, 0, |
109 | FB_VMODE_NONINTERLACED }, |
110 | |
111 | /* 1024x768 @ 76 Hz, 62.5 kHz hsync */ |
112 | { NULL, 76, 1024, 768, 11764, 208, 8, 36, 16, 120, 3, 0, |
113 | FB_VMODE_NONINTERLACED }, |
114 | |
115 | /* 1152x864 @ 70 Hz, 62.4 kHz hsync */ |
116 | { NULL, 70, 1152, 864, 10869, 106, 56, 20, 1, 160, 10, 0, |
117 | FB_VMODE_NONINTERLACED }, |
118 | |
119 | /* 1280x1024 @ 61 Hz, 64.2 kHz hsync */ |
120 | { NULL, 61, 1280, 1024, 9090, 200, 48, 26, 1, 184, 3, 0, |
121 | FB_VMODE_NONINTERLACED }, |
122 | |
123 | /* 1400x1050 @ 60Hz, 63.9 kHz hsync */ |
124 | { NULL, 60, 1400, 1050, 9259, 136, 40, 13, 1, 112, 3, 0, |
125 | FB_VMODE_NONINTERLACED }, |
126 | |
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, |
130 | 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, |
135 | FB_VMODE_NONINTERLACED }, |
136 | |
137 | /* 1024x768 @ 85 Hz, 70.24 kHz hsync */ |
138 | { NULL, 85, 1024, 768, 10111, 192, 32, 34, 14, 160, 6, 0, |
139 | FB_VMODE_NONINTERLACED }, |
140 | |
141 | /* 1152x864 @ 78 Hz, 70.8 kHz hsync */ |
142 | { NULL, 78, 1152, 864, 9090, 228, 88, 32, 0, 84, 12, 0, |
143 | FB_VMODE_NONINTERLACED }, |
144 | |
145 | /* 1280x1024 @ 70 Hz, 74.59 kHz hsync */ |
146 | { NULL, 70, 1280, 1024, 7905, 224, 32, 28, 8, 160, 8, 0, |
147 | FB_VMODE_NONINTERLACED }, |
148 | |
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, |
152 | FB_VMODE_NONINTERLACED }, |
153 | |
154 | /* 1152x864 @ 84 Hz, 76.0 kHz hsync */ |
155 | { NULL, 84, 1152, 864, 7407, 184, 312, 32, 0, 128, 12, 0, |
156 | FB_VMODE_NONINTERLACED }, |
157 | |
158 | /* 1280x1024 @ 74 Hz, 78.85 kHz hsync */ |
159 | { NULL, 74, 1280, 1024, 7407, 256, 32, 34, 3, 144, 3, 0, |
160 | FB_VMODE_NONINTERLACED }, |
161 | |
162 | /* 1024x768 @ 100Hz, 80.21 kHz hsync */ |
163 | { NULL, 100, 1024, 768, 8658, 192, 32, 21, 3, 192, 10, 0, |
164 | FB_VMODE_NONINTERLACED }, |
165 | |
166 | /* 1280x1024 @ 76 Hz, 81.13 kHz hsync */ |
167 | { NULL, 76, 1280, 1024, 7407, 248, 32, 34, 3, 104, 3, 0, |
168 | FB_VMODE_NONINTERLACED }, |
169 | |
170 | /* 1600x1200 @ 70 Hz, 87.50 kHz hsync */ |
171 | { NULL, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3, 0, |
172 | FB_VMODE_NONINTERLACED }, |
173 | |
174 | /* 1152x864 @ 100 Hz, 89.62 kHz hsync */ |
175 | { NULL, 100, 1152, 864, 7264, 224, 32, 17, 2, 128, 19, 0, |
176 | FB_VMODE_NONINTERLACED }, |
177 | |
178 | /* 1280x1024 @ 85 Hz, 91.15 kHz hsync */ |
179 | { NULL, 85, 1280, 1024, 6349, 224, 64, 44, 1, 160, 3, |
180 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
181 | FB_VMODE_NONINTERLACED }, |
182 | |
183 | /* 1600x1200 @ 75 Hz, 93.75 kHz hsync */ |
184 | { NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3, |
185 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
186 | FB_VMODE_NONINTERLACED }, |
187 | |
188 | /* 1680x1050 @ 60 Hz, 65.191 kHz hsync */ |
189 | { NULL, 60, 1680, 1050, 6848, 280, 104, 30, 3, 176, 6, |
190 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
191 | FB_VMODE_NONINTERLACED }, |
192 | |
193 | /* 1600x1200 @ 85 Hz, 105.77 kHz hsync */ |
194 | { NULL, 85, 1600, 1200, 4545, 272, 16, 37, 4, 192, 3, |
195 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
196 | FB_VMODE_NONINTERLACED }, |
197 | |
198 | /* 1280x1024 @ 100 Hz, 107.16 kHz hsync */ |
199 | { NULL, 100, 1280, 1024, 5502, 256, 32, 26, 7, 128, 15, 0, |
200 | FB_VMODE_NONINTERLACED }, |
201 | |
202 | /* 1800x1440 @ 64Hz, 96.15 kHz hsync */ |
203 | { NULL, 64, 1800, 1440, 4347, 304, 96, 46, 1, 192, 3, |
204 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
205 | FB_VMODE_NONINTERLACED }, |
206 | |
207 | /* 1800x1440 @ 70Hz, 104.52 kHz hsync */ |
208 | { NULL, 70, 1800, 1440, 4000, 304, 96, 46, 1, 192, 3, |
209 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
210 | FB_VMODE_NONINTERLACED }, |
211 | |
212 | /* 512x384 @ 78 Hz, 31.50 kHz hsync */ |
213 | { NULL, 78, 512, 384, 49603, 48, 16, 16, 1, 64, 3, 0, |
214 | FB_VMODE_NONINTERLACED }, |
215 | |
216 | /* 512x384 @ 85 Hz, 34.38 kHz hsync */ |
217 | { NULL, 85, 512, 384, 45454, 48, 16, 16, 1, 64, 3, 0, |
218 | FB_VMODE_NONINTERLACED }, |
219 | |
220 | /* 320x200 @ 70 Hz, 31.5 kHz hsync, 8:5 aspect ratio */ |
221 | { NULL, 70, 320, 200, 79440, 16, 16, 20, 4, 48, 1, 0, |
222 | FB_VMODE_DOUBLE }, |
223 | |
224 | /* 320x240 @ 60 Hz, 31.5 kHz hsync, 4:3 aspect ratio */ |
225 | { NULL, 60, 320, 240, 79440, 16, 16, 16, 5, 48, 1, 0, |
226 | FB_VMODE_DOUBLE }, |
227 | |
228 | /* 320x240 @ 72 Hz, 36.5 kHz hsync */ |
229 | { NULL, 72, 320, 240, 63492, 16, 16, 16, 4, 48, 2, 0, |
230 | FB_VMODE_DOUBLE }, |
231 | |
232 | /* 400x300 @ 56 Hz, 35.2 kHz hsync, 4:3 aspect ratio */ |
233 | { NULL, 56, 400, 300, 55555, 64, 16, 10, 1, 32, 1, 0, |
234 | FB_VMODE_DOUBLE }, |
235 | |
236 | /* 400x300 @ 60 Hz, 37.8 kHz hsync */ |
237 | { NULL, 60, 400, 300, 50000, 48, 16, 11, 1, 64, 2, 0, |
238 | FB_VMODE_DOUBLE }, |
239 | |
240 | /* 400x300 @ 72 Hz, 48.0 kHz hsync */ |
241 | { NULL, 72, 400, 300, 40000, 32, 24, 11, 19, 64, 3, 0, |
242 | FB_VMODE_DOUBLE }, |
243 | |
244 | /* 480x300 @ 56 Hz, 35.2 kHz hsync, 8:5 aspect ratio */ |
245 | { NULL, 56, 480, 300, 46176, 80, 16, 10, 1, 40, 1, 0, |
246 | FB_VMODE_DOUBLE }, |
247 | |
248 | /* 480x300 @ 60 Hz, 37.8 kHz hsync */ |
249 | { NULL, 60, 480, 300, 41858, 56, 16, 11, 1, 80, 2, 0, |
250 | FB_VMODE_DOUBLE }, |
251 | |
252 | /* 480x300 @ 63 Hz, 39.6 kHz hsync */ |
253 | { NULL, 63, 480, 300, 40000, 56, 16, 11, 1, 80, 2, 0, |
254 | FB_VMODE_DOUBLE }, |
255 | |
256 | /* 480x300 @ 72 Hz, 48.0 kHz hsync */ |
257 | { NULL, 72, 480, 300, 33386, 40, 24, 11, 19, 80, 3, 0, |
258 | FB_VMODE_DOUBLE }, |
259 | |
260 | /* 1920x1080 @ 60 Hz, 67.3 kHz hsync */ |
261 | { NULL, 60, 1920, 1080, 6734, 148, 88, 36, 4, 44, 5, 0, |
262 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
263 | FB_VMODE_NONINTERLACED }, |
264 | |
265 | /* 1920x1200 @ 60 Hz, 74.5 Khz hsync */ |
266 | { NULL, 60, 1920, 1200, 5177, 128, 336, 1, 38, 208, 3, |
267 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
268 | FB_VMODE_NONINTERLACED }, |
269 | |
270 | /* 1152x768, 60 Hz, PowerBook G4 Titanium I and II */ |
271 | { NULL, 60, 1152, 768, 14047, 158, 26, 29, 3, 136, 6, |
272 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
273 | FB_VMODE_NONINTERLACED }, |
274 | |
275 | /* 1366x768, 60 Hz, 47.403 kHz hsync, WXGA 16:9 aspect ratio */ |
276 | { NULL, 60, 1366, 768, 13806, 120, 10, 14, 3, 32, 5, 0, |
277 | FB_VMODE_NONINTERLACED }, |
278 | |
279 | /* 1280x800, 60 Hz, 47.403 kHz hsync, WXGA 16:10 aspect ratio */ |
280 | { NULL, 60, 1280, 800, 12048, 200, 64, 24, 1, 136, 3, 0, |
281 | FB_VMODE_NONINTERLACED }, |
282 | |
283 | /* 720x576i @ 50 Hz, 15.625 kHz hsync (PAL RGB) */ |
284 | { NULL, 50, 720, 576, 74074, 64, 16, 39, 5, 64, 5, 0, |
285 | FB_VMODE_INTERLACED }, |
286 | |
287 | /* 800x520i @ 50 Hz, 15.625 kHz hsync (PAL RGB) */ |
288 | { NULL, 50, 800, 520, 58823, 144, 64, 72, 28, 80, 5, 0, |
289 | FB_VMODE_INTERLACED }, |
290 | |
291 | /* 864x480 @ 60 Hz, 35.15 kHz hsync */ |
292 | { NULL, 60, 864, 480, 27777, 1, 1, 1, 1, 0, 0, |
293 | 0, FB_VMODE_NONINTERLACED }, |
294 | }; |
295 | |
296 | #ifdef CONFIG_FB_MODE_HELPERS |
297 | const struct fb_videomode vesa_modes[] = { |
298 | /* 0 640x350-85 VESA */ |
299 | { NULL, 85, 640, 350, 31746, 96, 32, 60, 32, 64, 3, |
300 | FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA}, |
301 | /* 1 640x400-85 VESA */ |
302 | { NULL, 85, 640, 400, 31746, 96, 32, 41, 01, 64, 3, |
303 | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
304 | /* 2 720x400-85 VESA */ |
305 | { NULL, 85, 721, 400, 28169, 108, 36, 42, 01, 72, 3, |
306 | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
307 | /* 3 640x480-60 VESA */ |
308 | { NULL, 60, 640, 480, 39682, 48, 16, 33, 10, 96, 2, |
309 | 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
310 | /* 4 640x480-72 VESA */ |
311 | { NULL, 72, 640, 480, 31746, 128, 24, 29, 9, 40, 2, |
312 | 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
313 | /* 5 640x480-75 VESA */ |
314 | { NULL, 75, 640, 480, 31746, 120, 16, 16, 01, 64, 3, |
315 | 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
316 | /* 6 640x480-85 VESA */ |
317 | { NULL, 85, 640, 480, 27777, 80, 56, 25, 01, 56, 3, |
318 | 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
319 | /* 7 800x600-56 VESA */ |
320 | { NULL, 56, 800, 600, 27777, 128, 24, 22, 01, 72, 2, |
321 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
322 | FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
323 | /* 8 800x600-60 VESA */ |
324 | { NULL, 60, 800, 600, 25000, 88, 40, 23, 01, 128, 4, |
325 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
326 | FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
327 | /* 9 800x600-72 VESA */ |
328 | { NULL, 72, 800, 600, 20000, 64, 56, 23, 37, 120, 6, |
329 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
330 | FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
331 | /* 10 800x600-75 VESA */ |
332 | { NULL, 75, 800, 600, 20202, 160, 16, 21, 01, 80, 3, |
333 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
334 | FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
335 | /* 11 800x600-85 VESA */ |
336 | { NULL, 85, 800, 600, 17761, 152, 32, 27, 01, 64, 3, |
337 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
338 | FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
339 | /* 12 1024x768i-43 VESA */ |
340 | { NULL, 43, 1024, 768, 22271, 56, 8, 41, 0, 176, 8, |
341 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
342 | FB_VMODE_INTERLACED, FB_MODE_IS_VESA }, |
343 | /* 13 1024x768-60 VESA */ |
344 | { NULL, 60, 1024, 768, 15384, 160, 24, 29, 3, 136, 6, |
345 | 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
346 | /* 14 1024x768-70 VESA */ |
347 | { NULL, 70, 1024, 768, 13333, 144, 24, 29, 3, 136, 6, |
348 | 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
349 | /* 15 1024x768-75 VESA */ |
350 | { NULL, 75, 1024, 768, 12690, 176, 16, 28, 1, 96, 3, |
351 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
352 | FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
353 | /* 16 1024x768-85 VESA */ |
354 | { NULL, 85, 1024, 768, 10582, 208, 48, 36, 1, 96, 3, |
355 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
356 | FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
357 | /* 17 1152x864-75 VESA */ |
358 | { NULL, 75, 1152, 864, 9259, 256, 64, 32, 1, 128, 3, |
359 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
360 | FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
361 | /* 18 1280x960-60 VESA */ |
362 | { NULL, 60, 1280, 960, 9259, 312, 96, 36, 1, 112, 3, |
363 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
364 | FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
365 | /* 19 1280x960-85 VESA */ |
366 | { NULL, 85, 1280, 960, 6734, 224, 64, 47, 1, 160, 3, |
367 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
368 | FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
369 | /* 20 1280x1024-60 VESA */ |
370 | { NULL, 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3, |
371 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
372 | FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
373 | /* 21 1280x1024-75 VESA */ |
374 | { NULL, 75, 1280, 1024, 7407, 248, 16, 38, 1, 144, 3, |
375 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
376 | FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
377 | /* 22 1280x1024-85 VESA */ |
378 | { NULL, 85, 1280, 1024, 6349, 224, 64, 44, 1, 160, 3, |
379 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
380 | FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
381 | /* 23 1600x1200-60 VESA */ |
382 | { NULL, 60, 1600, 1200, 6172, 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 | /* 24 1600x1200-65 VESA */ |
386 | { NULL, 65, 1600, 1200, 5698, 304, 64, 46, 1, 192, 3, |
387 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
388 | FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
389 | /* 25 1600x1200-70 VESA */ |
390 | { NULL, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3, |
391 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
392 | FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
393 | /* 26 1600x1200-75 VESA */ |
394 | { NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3, |
395 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
396 | FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
397 | /* 27 1600x1200-85 VESA */ |
398 | { NULL, 85, 1600, 1200, 4357, 304, 64, 46, 1, 192, 3, |
399 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
400 | FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
401 | /* 28 1792x1344-60 VESA */ |
402 | { NULL, 60, 1792, 1344, 4882, 328, 128, 46, 1, 200, 3, |
403 | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
404 | /* 29 1792x1344-75 VESA */ |
405 | { NULL, 75, 1792, 1344, 3831, 352, 96, 69, 1, 216, 3, |
406 | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
407 | /* 30 1856x1392-60 VESA */ |
408 | { NULL, 60, 1856, 1392, 4580, 352, 96, 43, 1, 224, 3, |
409 | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
410 | /* 31 1856x1392-75 VESA */ |
411 | { NULL, 75, 1856, 1392, 3472, 352, 128, 104, 1, 224, 3, |
412 | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
413 | /* 32 1920x1440-60 VESA */ |
414 | { NULL, 60, 1920, 1440, 4273, 344, 128, 56, 1, 200, 3, |
415 | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
416 | /* 33 1920x1440-75 VESA */ |
417 | { NULL, 75, 1920, 1440, 3367, 352, 144, 56, 1, 224, 3, |
418 | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
419 | /* 34 1920x1200-60 RB VESA */ |
420 | { NULL, 60, 1920, 1200, 6493, 80, 48, 26, 3, 32, 6, |
421 | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
422 | /* 35 1920x1200-60 VESA */ |
423 | { NULL, 60, 1920, 1200, 5174, 336, 136, 36, 3, 200, 6, |
424 | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
425 | /* 36 1920x1200-75 VESA */ |
426 | { NULL, 75, 1920, 1200, 4077, 344, 136, 46, 3, 208, 6, |
427 | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
428 | /* 37 1920x1200-85 VESA */ |
429 | { NULL, 85, 1920, 1200, 3555, 352, 144, 53, 3, 208, 6, |
430 | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
431 | /* 38 2560x1600-60 RB VESA */ |
432 | { NULL, 60, 2560, 1600, 3724, 80, 48, 37, 3, 32, 6, |
433 | FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
434 | /* 39 2560x1600-60 VESA */ |
435 | { NULL, 60, 2560, 1600, 2869, 472, 192, 49, 3, 280, 6, |
436 | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
437 | /* 40 2560x1600-75 VESA */ |
438 | { NULL, 75, 2560, 1600, 2256, 488, 208, 63, 3, 280, 6, |
439 | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
440 | /* 41 2560x1600-85 VESA */ |
441 | { NULL, 85, 2560, 1600, 1979, 488, 208, 73, 3, 280, 6, |
442 | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
443 | /* 42 2560x1600-120 RB VESA */ |
444 | { NULL, 120, 2560, 1600, 1809, 80, 48, 85, 3, 32, 6, |
445 | FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, |
446 | }; |
447 | EXPORT_SYMBOL(vesa_modes); |
448 | |
449 | const struct dmt_videomode dmt_modes[DMT_SIZE] = { |
450 | { 0x01, 0x0000, 0x000000, &vesa_modes[0] }, |
451 | { 0x02, 0x3119, 0x000000, &vesa_modes[1] }, |
452 | { 0x03, 0x0000, 0x000000, &vesa_modes[2] }, |
453 | { 0x04, 0x3140, 0x000000, &vesa_modes[3] }, |
454 | { 0x05, 0x314c, 0x000000, &vesa_modes[4] }, |
455 | { 0x06, 0x314f, 0x000000, &vesa_modes[5] }, |
456 | { 0x07, 0x3159, 0x000000, &vesa_modes[6] }, |
457 | { 0x08, 0x0000, 0x000000, &vesa_modes[7] }, |
458 | { 0x09, 0x4540, 0x000000, &vesa_modes[8] }, |
459 | { 0x0a, 0x454c, 0x000000, &vesa_modes[9] }, |
460 | { 0x0b, 0x454f, 0x000000, &vesa_modes[10] }, |
461 | { 0x0c, 0x4559, 0x000000, &vesa_modes[11] }, |
462 | { 0x0d, 0x0000, 0x000000, NULL }, |
463 | { 0x0e, 0x0000, 0x000000, NULL }, |
464 | { 0x0f, 0x0000, 0x000000, &vesa_modes[12] }, |
465 | { 0x10, 0x6140, 0x000000, &vesa_modes[13] }, |
466 | { 0x11, 0x614a, 0x000000, &vesa_modes[14] }, |
467 | { 0x12, 0x614f, 0x000000, &vesa_modes[15] }, |
468 | { 0x13, 0x6159, 0x000000, &vesa_modes[16] }, |
469 | { 0x14, 0x0000, 0x000000, NULL }, |
470 | { 0x15, 0x714f, 0x000000, &vesa_modes[17] }, |
471 | { 0x16, 0x0000, 0x7f1c21, NULL }, |
472 | { 0x17, 0x0000, 0x7f1c28, NULL }, |
473 | { 0x18, 0x0000, 0x7f1c44, NULL }, |
474 | { 0x19, 0x0000, 0x7f1c62, NULL }, |
475 | { 0x1a, 0x0000, 0x000000, NULL }, |
476 | { 0x1b, 0x0000, 0x8f1821, NULL }, |
477 | { 0x1c, 0x8100, 0x8f1828, NULL }, |
478 | { 0x1d, 0x810f, 0x8f1844, NULL }, |
479 | { 0x1e, 0x8119, 0x8f1862, NULL }, |
480 | { 0x1f, 0x0000, 0x000000, NULL }, |
481 | { 0x20, 0x8140, 0x000000, &vesa_modes[18] }, |
482 | { 0x21, 0x8159, 0x000000, &vesa_modes[19] }, |
483 | { 0x22, 0x0000, 0x000000, NULL }, |
484 | { 0x23, 0x8180, 0x000000, &vesa_modes[20] }, |
485 | { 0x24, 0x818f, 0x000000, &vesa_modes[21] }, |
486 | { 0x25, 0x8199, 0x000000, &vesa_modes[22] }, |
487 | { 0x26, 0x0000, 0x000000, NULL }, |
488 | { 0x27, 0x0000, 0x000000, NULL }, |
489 | { 0x28, 0x0000, 0x000000, NULL }, |
490 | { 0x29, 0x0000, 0x0c2021, NULL }, |
491 | { 0x2a, 0x9040, 0x0c2028, NULL }, |
492 | { 0x2b, 0x904f, 0x0c2044, NULL }, |
493 | { 0x2c, 0x9059, 0x0c2062, NULL }, |
494 | { 0x2d, 0x0000, 0x000000, NULL }, |
495 | { 0x2e, 0x9500, 0xc11821, NULL }, |
496 | { 0x2f, 0x9500, 0xc11828, NULL }, |
497 | { 0x30, 0x950f, 0xc11844, NULL }, |
498 | { 0x31, 0x9519, 0xc11868, NULL }, |
499 | { 0x32, 0x0000, 0x000000, NULL }, |
500 | { 0x33, 0xa940, 0x000000, &vesa_modes[23] }, |
501 | { 0x34, 0xa945, 0x000000, &vesa_modes[24] }, |
502 | { 0x35, 0xa94a, 0x000000, &vesa_modes[25] }, |
503 | { 0x36, 0xa94f, 0x000000, &vesa_modes[26] }, |
504 | { 0x37, 0xa959, 0x000000, &vesa_modes[27] }, |
505 | { 0x38, 0x0000, 0x000000, NULL }, |
506 | { 0x39, 0x0000, 0x0c2821, NULL }, |
507 | { 0x3a, 0xb300, 0x0c2828, NULL }, |
508 | { 0x3b, 0xb30f, 0x0c2844, NULL }, |
509 | { 0x3c, 0xb319, 0x0c2868, NULL }, |
510 | { 0x3d, 0x0000, 0x000000, NULL }, |
511 | { 0x3e, 0xc140, 0x000000, &vesa_modes[28] }, |
512 | { 0x3f, 0xc14f, 0x000000, &vesa_modes[29] }, |
513 | { 0x40, 0x0000, 0x000000, NULL}, |
514 | { 0x41, 0xc940, 0x000000, &vesa_modes[30] }, |
515 | { 0x42, 0xc94f, 0x000000, &vesa_modes[31] }, |
516 | { 0x43, 0x0000, 0x000000, NULL }, |
517 | { 0x44, 0x0000, 0x572821, &vesa_modes[34] }, |
518 | { 0x45, 0xd100, 0x572828, &vesa_modes[35] }, |
519 | { 0x46, 0xd10f, 0x572844, &vesa_modes[36] }, |
520 | { 0x47, 0xd119, 0x572862, &vesa_modes[37] }, |
521 | { 0x48, 0x0000, 0x000000, NULL }, |
522 | { 0x49, 0xd140, 0x000000, &vesa_modes[32] }, |
523 | { 0x4a, 0xd14f, 0x000000, &vesa_modes[33] }, |
524 | { 0x4b, 0x0000, 0x000000, NULL }, |
525 | { 0x4c, 0x0000, 0x1f3821, &vesa_modes[38] }, |
526 | { 0x4d, 0x0000, 0x1f3828, &vesa_modes[39] }, |
527 | { 0x4e, 0x0000, 0x1f3844, &vesa_modes[40] }, |
528 | { 0x4f, 0x0000, 0x1f3862, &vesa_modes[41] }, |
529 | { 0x50, 0x0000, 0x000000, &vesa_modes[42] }, |
530 | }; |
531 | EXPORT_SYMBOL(dmt_modes); |
532 | #endif /* CONFIG_FB_MODE_HELPERS */ |
533 | |
534 | /** |
535 | * fb_try_mode - test a video mode |
536 | * @var: frame buffer user defined part of display |
537 | * @info: frame buffer info structure |
538 | * @mode: frame buffer video mode structure |
539 | * @bpp: color depth in bits per pixel |
540 | * |
541 | * Tries a video mode to test it's validity for device @info. |
542 | * |
543 | * Returns 1 on success. |
544 | * |
545 | */ |
546 | |
547 | static int fb_try_mode(struct fb_var_screeninfo *var, struct fb_info *info, |
548 | const struct fb_videomode *mode, unsigned int bpp) |
549 | { |
550 | int err = 0; |
551 | |
552 | DPRINTK("Trying mode %s %dx%d-%d@%d\n" , |
553 | mode->name ? mode->name : "noname" , |
554 | mode->xres, mode->yres, bpp, mode->refresh); |
555 | var->xres = mode->xres; |
556 | var->yres = mode->yres; |
557 | var->xres_virtual = mode->xres; |
558 | var->yres_virtual = mode->yres; |
559 | var->xoffset = 0; |
560 | var->yoffset = 0; |
561 | var->bits_per_pixel = bpp; |
562 | var->activate |= FB_ACTIVATE_TEST; |
563 | var->pixclock = mode->pixclock; |
564 | var->left_margin = mode->left_margin; |
565 | var->right_margin = mode->right_margin; |
566 | var->upper_margin = mode->upper_margin; |
567 | var->lower_margin = mode->lower_margin; |
568 | var->hsync_len = mode->hsync_len; |
569 | var->vsync_len = mode->vsync_len; |
570 | var->sync = mode->sync; |
571 | var->vmode = mode->vmode; |
572 | if (info->fbops->fb_check_var) |
573 | err = info->fbops->fb_check_var(var, info); |
574 | var->activate &= ~FB_ACTIVATE_TEST; |
575 | return err; |
576 | } |
577 | |
578 | /** |
579 | * fb_find_mode - finds a valid video mode |
580 | * @var: frame buffer user defined part of display |
581 | * @info: frame buffer info structure |
582 | * @mode_option: string video mode to find |
583 | * @db: video mode database |
584 | * @dbsize: size of @db |
585 | * @default_mode: default video mode to fall back to |
586 | * @default_bpp: default color depth in bits per pixel |
587 | * |
588 | * Finds a suitable video mode, starting with the specified mode |
589 | * in @mode_option with fallback to @default_mode. If |
590 | * @default_mode fails, all modes in the video mode database will |
591 | * be tried. |
592 | * |
593 | * Valid mode specifiers for @mode_option:: |
594 | * |
595 | * <xres>x<yres>[M][R][-<bpp>][@<refresh>][i][p][m] |
596 | * |
597 | * or :: |
598 | * |
599 | * <name>[-<bpp>][@<refresh>] |
600 | * |
601 | * with <xres>, <yres>, <bpp> and <refresh> decimal numbers and |
602 | * <name> a string. |
603 | * |
604 | * If 'M' is present after yres (and before refresh/bpp if present), |
605 | * the function will compute the timings using VESA(tm) Coordinated |
606 | * Video Timings (CVT). If 'R' is present after 'M', will compute with |
607 | * reduced blanking (for flatpanels). If 'i' or 'p' are present, compute |
608 | * interlaced or progressive mode. If 'm' is present, add margins equal |
609 | * to 1.8% of xres rounded down to 8 pixels, and 1.8% of yres. The char |
610 | * 'i', 'p' and 'm' must be after 'M' and 'R'. Example:: |
611 | * |
612 | * 1024x768MR-8@60m - Reduced blank with margins at 60Hz. |
613 | * |
614 | * NOTE: The passed struct @var is _not_ cleared! This allows you |
615 | * to supply values for e.g. the grayscale and accel_flags fields. |
616 | * |
617 | * Returns zero for failure, 1 if using specified @mode_option, |
618 | * 2 if using specified @mode_option with an ignored refresh rate, |
619 | * 3 if default mode is used, 4 if fall back to any valid mode. |
620 | */ |
621 | |
622 | int fb_find_mode(struct fb_var_screeninfo *var, |
623 | struct fb_info *info, const char *mode_option, |
624 | const struct fb_videomode *db, unsigned int dbsize, |
625 | const struct fb_videomode *default_mode, |
626 | unsigned int default_bpp) |
627 | { |
628 | char *mode_option_buf = NULL; |
629 | int i; |
630 | |
631 | /* Set up defaults */ |
632 | if (!db) { |
633 | db = modedb; |
634 | dbsize = ARRAY_SIZE(modedb); |
635 | } |
636 | |
637 | if (!default_mode) |
638 | default_mode = &db[0]; |
639 | |
640 | if (!default_bpp) |
641 | default_bpp = 8; |
642 | |
643 | /* Did the user specify a video mode? */ |
644 | if (!mode_option) { |
645 | fb_get_options(NULL, option: &mode_option_buf); |
646 | mode_option = mode_option_buf; |
647 | } |
648 | if (mode_option) { |
649 | const char *name = mode_option; |
650 | unsigned int namelen = strlen(name); |
651 | int res_specified = 0, bpp_specified = 0, refresh_specified = 0; |
652 | unsigned int xres = 0, yres = 0, bpp = default_bpp, refresh = 0; |
653 | int yres_specified = 0, cvt = 0, rb = 0; |
654 | int interlace_specified = 0, interlace = 0; |
655 | int margins = 0; |
656 | u32 best, diff, tdiff; |
657 | |
658 | for (i = namelen-1; i >= 0; i--) { |
659 | switch (name[i]) { |
660 | case '@': |
661 | namelen = i; |
662 | if (!refresh_specified && !bpp_specified && |
663 | !yres_specified) { |
664 | refresh = simple_strtol(&name[i+1], NULL, |
665 | 10); |
666 | refresh_specified = 1; |
667 | if (cvt || rb) |
668 | cvt = 0; |
669 | } else |
670 | goto done; |
671 | break; |
672 | case '-': |
673 | namelen = i; |
674 | if (!bpp_specified && !yres_specified) { |
675 | bpp = simple_strtol(&name[i+1], NULL, |
676 | 10); |
677 | bpp_specified = 1; |
678 | if (cvt || rb) |
679 | cvt = 0; |
680 | } else |
681 | goto done; |
682 | break; |
683 | case 'x': |
684 | if (!yres_specified) { |
685 | yres = simple_strtol(&name[i+1], NULL, |
686 | 10); |
687 | yres_specified = 1; |
688 | } else |
689 | goto done; |
690 | break; |
691 | case '0' ... '9': |
692 | break; |
693 | case 'M': |
694 | if (!yres_specified) |
695 | cvt = 1; |
696 | break; |
697 | case 'R': |
698 | if (!cvt) |
699 | rb = 1; |
700 | break; |
701 | case 'm': |
702 | if (!cvt) |
703 | margins = 1; |
704 | break; |
705 | case 'p': |
706 | if (!cvt) { |
707 | interlace = 0; |
708 | interlace_specified = 1; |
709 | } |
710 | break; |
711 | case 'i': |
712 | if (!cvt) { |
713 | interlace = 1; |
714 | interlace_specified = 1; |
715 | } |
716 | break; |
717 | default: |
718 | goto done; |
719 | } |
720 | } |
721 | if (i < 0 && yres_specified) { |
722 | xres = simple_strtol(name, NULL, 10); |
723 | res_specified = 1; |
724 | } |
725 | done: |
726 | kfree(objp: mode_option_buf); |
727 | if (cvt) { |
728 | struct fb_videomode cvt_mode; |
729 | int ret; |
730 | |
731 | DPRINTK("CVT mode %dx%d@%dHz%s%s%s\n" , xres, yres, |
732 | (refresh) ? refresh : 60, |
733 | (rb) ? " reduced blanking" : "" , |
734 | (margins) ? " with margins" : "" , |
735 | (interlace) ? " interlaced" : "" ); |
736 | |
737 | memset(&cvt_mode, 0, sizeof(cvt_mode)); |
738 | cvt_mode.xres = xres; |
739 | cvt_mode.yres = yres; |
740 | cvt_mode.refresh = (refresh) ? refresh : 60; |
741 | |
742 | if (interlace) |
743 | cvt_mode.vmode |= FB_VMODE_INTERLACED; |
744 | else |
745 | cvt_mode.vmode &= ~FB_VMODE_INTERLACED; |
746 | |
747 | ret = fb_find_mode_cvt(mode: &cvt_mode, margins, rb); |
748 | |
749 | if (!ret && !fb_try_mode(var, info, mode: &cvt_mode, bpp)) { |
750 | DPRINTK("modedb CVT: CVT mode ok\n" ); |
751 | return 1; |
752 | } |
753 | |
754 | DPRINTK("CVT mode invalid, getting mode from database\n" ); |
755 | } |
756 | |
757 | DPRINTK("Trying specified video mode%s %ix%i\n" , |
758 | refresh_specified ? "" : " (ignoring refresh rate)" , |
759 | xres, yres); |
760 | |
761 | if (!refresh_specified) { |
762 | /* |
763 | * If the caller has provided a custom mode database and |
764 | * a valid monspecs structure, we look for the mode with |
765 | * the highest refresh rate. Otherwise we play it safe |
766 | * it and try to find a mode with a refresh rate closest |
767 | * to the standard 60 Hz. |
768 | */ |
769 | if (db != modedb && |
770 | info->monspecs.vfmin && info->monspecs.vfmax && |
771 | info->monspecs.hfmin && info->monspecs.hfmax && |
772 | info->monspecs.dclkmax) { |
773 | refresh = 1000; |
774 | } else { |
775 | refresh = 60; |
776 | } |
777 | } |
778 | |
779 | diff = -1; |
780 | best = -1; |
781 | for (i = 0; i < dbsize; i++) { |
782 | if ((name_matches(db[i], name, namelen) || |
783 | (res_specified && res_matches(db[i], xres, yres))) && |
784 | !fb_try_mode(var, info, mode: &db[i], bpp)) { |
785 | const int db_interlace = (db[i].vmode & |
786 | FB_VMODE_INTERLACED ? 1 : 0); |
787 | int score = abs(db[i].refresh - refresh); |
788 | |
789 | if (interlace_specified) |
790 | score += abs(db_interlace - interlace); |
791 | |
792 | if (!interlace_specified || |
793 | db_interlace == interlace) |
794 | if (refresh_specified && |
795 | db[i].refresh == refresh) |
796 | return 1; |
797 | |
798 | if (score < diff) { |
799 | diff = score; |
800 | best = i; |
801 | } |
802 | } |
803 | } |
804 | if (best != -1) { |
805 | fb_try_mode(var, info, mode: &db[best], bpp); |
806 | return (refresh_specified) ? 2 : 1; |
807 | } |
808 | |
809 | diff = 2 * (xres + yres); |
810 | best = -1; |
811 | DPRINTK("Trying best-fit modes\n" ); |
812 | for (i = 0; i < dbsize; i++) { |
813 | DPRINTK("Trying %ix%i\n" , db[i].xres, db[i].yres); |
814 | if (!fb_try_mode(var, info, mode: &db[i], bpp)) { |
815 | tdiff = abs(db[i].xres - xres) + |
816 | abs(db[i].yres - yres); |
817 | |
818 | /* |
819 | * Penalize modes with resolutions smaller |
820 | * than requested. |
821 | */ |
822 | if (xres > db[i].xres || yres > db[i].yres) |
823 | tdiff += xres + yres; |
824 | |
825 | if (diff > tdiff) { |
826 | diff = tdiff; |
827 | best = i; |
828 | } |
829 | } |
830 | } |
831 | if (best != -1) { |
832 | fb_try_mode(var, info, mode: &db[best], bpp); |
833 | return 5; |
834 | } |
835 | } |
836 | |
837 | DPRINTK("Trying default video mode\n" ); |
838 | if (!fb_try_mode(var, info, mode: default_mode, bpp: default_bpp)) |
839 | return 3; |
840 | |
841 | DPRINTK("Trying all modes\n" ); |
842 | for (i = 0; i < dbsize; i++) |
843 | if (!fb_try_mode(var, info, mode: &db[i], bpp: default_bpp)) |
844 | return 4; |
845 | |
846 | DPRINTK("No valid mode found\n" ); |
847 | return 0; |
848 | } |
849 | |
850 | /** |
851 | * fb_var_to_videomode - convert fb_var_screeninfo to fb_videomode |
852 | * @mode: pointer to struct fb_videomode |
853 | * @var: pointer to struct fb_var_screeninfo |
854 | */ |
855 | void fb_var_to_videomode(struct fb_videomode *mode, |
856 | const struct fb_var_screeninfo *var) |
857 | { |
858 | u32 pixclock, hfreq, htotal, vtotal; |
859 | |
860 | mode->name = NULL; |
861 | mode->xres = var->xres; |
862 | mode->yres = var->yres; |
863 | mode->pixclock = var->pixclock; |
864 | mode->hsync_len = var->hsync_len; |
865 | mode->vsync_len = var->vsync_len; |
866 | mode->left_margin = var->left_margin; |
867 | mode->right_margin = var->right_margin; |
868 | mode->upper_margin = var->upper_margin; |
869 | mode->lower_margin = var->lower_margin; |
870 | mode->sync = var->sync; |
871 | mode->vmode = var->vmode & FB_VMODE_MASK; |
872 | mode->flag = FB_MODE_IS_FROM_VAR; |
873 | mode->refresh = 0; |
874 | |
875 | if (!var->pixclock) |
876 | return; |
877 | |
878 | pixclock = PICOS2KHZ(var->pixclock) * 1000; |
879 | |
880 | htotal = var->xres + var->right_margin + var->hsync_len + |
881 | var->left_margin; |
882 | vtotal = var->yres + var->lower_margin + var->vsync_len + |
883 | var->upper_margin; |
884 | |
885 | if (var->vmode & FB_VMODE_INTERLACED) |
886 | vtotal /= 2; |
887 | if (var->vmode & FB_VMODE_DOUBLE) |
888 | vtotal *= 2; |
889 | |
890 | if (!htotal || !vtotal) |
891 | return; |
892 | |
893 | hfreq = pixclock/htotal; |
894 | mode->refresh = hfreq/vtotal; |
895 | } |
896 | |
897 | /** |
898 | * fb_videomode_to_var - convert fb_videomode to fb_var_screeninfo |
899 | * @var: pointer to struct fb_var_screeninfo |
900 | * @mode: pointer to struct fb_videomode |
901 | */ |
902 | void fb_videomode_to_var(struct fb_var_screeninfo *var, |
903 | const struct fb_videomode *mode) |
904 | { |
905 | var->xres = mode->xres; |
906 | var->yres = mode->yres; |
907 | var->xres_virtual = mode->xres; |
908 | var->yres_virtual = mode->yres; |
909 | var->xoffset = 0; |
910 | var->yoffset = 0; |
911 | var->pixclock = mode->pixclock; |
912 | var->left_margin = mode->left_margin; |
913 | var->right_margin = mode->right_margin; |
914 | var->upper_margin = mode->upper_margin; |
915 | var->lower_margin = mode->lower_margin; |
916 | var->hsync_len = mode->hsync_len; |
917 | var->vsync_len = mode->vsync_len; |
918 | var->sync = mode->sync; |
919 | var->vmode = mode->vmode & FB_VMODE_MASK; |
920 | } |
921 | |
922 | /** |
923 | * fb_mode_is_equal - compare 2 videomodes |
924 | * @mode1: first videomode |
925 | * @mode2: second videomode |
926 | * |
927 | * RETURNS: |
928 | * 1 if equal, 0 if not |
929 | */ |
930 | int fb_mode_is_equal(const struct fb_videomode *mode1, |
931 | const struct fb_videomode *mode2) |
932 | { |
933 | return (mode1->xres == mode2->xres && |
934 | mode1->yres == mode2->yres && |
935 | mode1->pixclock == mode2->pixclock && |
936 | mode1->hsync_len == mode2->hsync_len && |
937 | mode1->vsync_len == mode2->vsync_len && |
938 | mode1->left_margin == mode2->left_margin && |
939 | mode1->right_margin == mode2->right_margin && |
940 | mode1->upper_margin == mode2->upper_margin && |
941 | mode1->lower_margin == mode2->lower_margin && |
942 | mode1->sync == mode2->sync && |
943 | mode1->vmode == mode2->vmode); |
944 | } |
945 | |
946 | /** |
947 | * fb_find_best_mode - find best matching videomode |
948 | * @var: pointer to struct fb_var_screeninfo |
949 | * @head: pointer to struct list_head of modelist |
950 | * |
951 | * RETURNS: |
952 | * struct fb_videomode, NULL if none found |
953 | * |
954 | * IMPORTANT: |
955 | * This function assumes that all modelist entries in |
956 | * info->modelist are valid. |
957 | * |
958 | * NOTES: |
959 | * Finds best matching videomode which has an equal or greater dimension than |
960 | * var->xres and var->yres. If more than 1 videomode is found, will return |
961 | * the videomode with the highest refresh rate |
962 | */ |
963 | const struct fb_videomode *fb_find_best_mode(const struct fb_var_screeninfo *var, |
964 | struct list_head *head) |
965 | { |
966 | struct fb_modelist *modelist; |
967 | struct fb_videomode *mode, *best = NULL; |
968 | u32 diff = -1; |
969 | |
970 | list_for_each_entry(modelist, head, list) { |
971 | u32 d; |
972 | mode = &modelist->mode; |
973 | |
974 | if (mode->xres >= var->xres && mode->yres >= var->yres) { |
975 | d = (mode->xres - var->xres) + |
976 | (mode->yres - var->yres); |
977 | if (diff > d) { |
978 | diff = d; |
979 | best = mode; |
980 | } else if (diff == d && best && |
981 | mode->refresh > best->refresh) |
982 | best = mode; |
983 | } |
984 | } |
985 | return best; |
986 | } |
987 | |
988 | /** |
989 | * fb_find_nearest_mode - find closest videomode |
990 | * |
991 | * @mode: pointer to struct fb_videomode |
992 | * @head: pointer to modelist |
993 | * |
994 | * Finds best matching videomode, smaller or greater in dimension. |
995 | * If more than 1 videomode is found, will return the videomode with |
996 | * the closest refresh rate. |
997 | */ |
998 | const struct fb_videomode *fb_find_nearest_mode(const struct fb_videomode *mode, |
999 | struct list_head *head) |
1000 | { |
1001 | struct fb_modelist *modelist; |
1002 | struct fb_videomode *cmode, *best = NULL; |
1003 | u32 diff = -1, diff_refresh = -1; |
1004 | |
1005 | list_for_each_entry(modelist, head, list) { |
1006 | u32 d; |
1007 | cmode = &modelist->mode; |
1008 | |
1009 | d = abs(cmode->xres - mode->xres) + |
1010 | abs(cmode->yres - mode->yres); |
1011 | if (diff > d) { |
1012 | diff = d; |
1013 | diff_refresh = abs(cmode->refresh - mode->refresh); |
1014 | best = cmode; |
1015 | } else if (diff == d) { |
1016 | d = abs(cmode->refresh - mode->refresh); |
1017 | if (diff_refresh > d) { |
1018 | diff_refresh = d; |
1019 | best = cmode; |
1020 | } |
1021 | } |
1022 | } |
1023 | |
1024 | return best; |
1025 | } |
1026 | |
1027 | /** |
1028 | * fb_match_mode - find a videomode which exactly matches the timings in var |
1029 | * @var: pointer to struct fb_var_screeninfo |
1030 | * @head: pointer to struct list_head of modelist |
1031 | * |
1032 | * RETURNS: |
1033 | * struct fb_videomode, NULL if none found |
1034 | */ |
1035 | const struct fb_videomode *fb_match_mode(const struct fb_var_screeninfo *var, |
1036 | struct list_head *head) |
1037 | { |
1038 | struct fb_modelist *modelist; |
1039 | struct fb_videomode *m, mode; |
1040 | |
1041 | fb_var_to_videomode(mode: &mode, var); |
1042 | list_for_each_entry(modelist, head, list) { |
1043 | m = &modelist->mode; |
1044 | if (fb_mode_is_equal(mode1: m, mode2: &mode)) |
1045 | return m; |
1046 | } |
1047 | return NULL; |
1048 | } |
1049 | |
1050 | /** |
1051 | * fb_add_videomode - adds videomode entry to modelist |
1052 | * @mode: videomode to add |
1053 | * @head: struct list_head of modelist |
1054 | * |
1055 | * NOTES: |
1056 | * Will only add unmatched mode entries |
1057 | */ |
1058 | int fb_add_videomode(const struct fb_videomode *mode, struct list_head *head) |
1059 | { |
1060 | struct fb_modelist *modelist; |
1061 | struct fb_videomode *m; |
1062 | int found = 0; |
1063 | |
1064 | list_for_each_entry(modelist, head, list) { |
1065 | m = &modelist->mode; |
1066 | if (fb_mode_is_equal(mode1: m, mode2: mode)) { |
1067 | found = 1; |
1068 | break; |
1069 | } |
1070 | } |
1071 | if (!found) { |
1072 | modelist = kmalloc(size: sizeof(struct fb_modelist), |
1073 | GFP_KERNEL); |
1074 | |
1075 | if (!modelist) |
1076 | return -ENOMEM; |
1077 | modelist->mode = *mode; |
1078 | list_add(new: &modelist->list, head); |
1079 | } |
1080 | return 0; |
1081 | } |
1082 | |
1083 | /** |
1084 | * fb_delete_videomode - removed videomode entry from modelist |
1085 | * @mode: videomode to remove |
1086 | * @head: struct list_head of modelist |
1087 | * |
1088 | * NOTES: |
1089 | * Will remove all matching mode entries |
1090 | */ |
1091 | void fb_delete_videomode(const struct fb_videomode *mode, |
1092 | struct list_head *head) |
1093 | { |
1094 | struct list_head *pos, *n; |
1095 | struct fb_modelist *modelist; |
1096 | struct fb_videomode *m; |
1097 | |
1098 | list_for_each_safe(pos, n, head) { |
1099 | modelist = list_entry(pos, struct fb_modelist, list); |
1100 | m = &modelist->mode; |
1101 | if (fb_mode_is_equal(mode1: m, mode2: mode)) { |
1102 | list_del(entry: pos); |
1103 | kfree(objp: pos); |
1104 | } |
1105 | } |
1106 | } |
1107 | |
1108 | /** |
1109 | * fb_destroy_modelist - destroy modelist |
1110 | * @head: struct list_head of modelist |
1111 | */ |
1112 | void fb_destroy_modelist(struct list_head *head) |
1113 | { |
1114 | struct list_head *pos, *n; |
1115 | |
1116 | list_for_each_safe(pos, n, head) { |
1117 | list_del(entry: pos); |
1118 | kfree(objp: pos); |
1119 | } |
1120 | } |
1121 | EXPORT_SYMBOL_GPL(fb_destroy_modelist); |
1122 | |
1123 | /** |
1124 | * fb_videomode_to_modelist - convert mode array to mode list |
1125 | * @modedb: array of struct fb_videomode |
1126 | * @num: number of entries in array |
1127 | * @head: struct list_head of modelist |
1128 | */ |
1129 | void fb_videomode_to_modelist(const struct fb_videomode *modedb, int num, |
1130 | struct list_head *head) |
1131 | { |
1132 | int i; |
1133 | |
1134 | INIT_LIST_HEAD(list: head); |
1135 | |
1136 | for (i = 0; i < num; i++) { |
1137 | if (fb_add_videomode(mode: &modedb[i], head)) |
1138 | return; |
1139 | } |
1140 | } |
1141 | |
1142 | const struct fb_videomode *fb_find_best_display(const struct fb_monspecs *specs, |
1143 | struct list_head *head) |
1144 | { |
1145 | struct fb_modelist *modelist; |
1146 | const struct fb_videomode *m, *m1 = NULL, *md = NULL, *best = NULL; |
1147 | int first = 0; |
1148 | |
1149 | if (!head->prev || !head->next || list_empty(head)) |
1150 | goto finished; |
1151 | |
1152 | /* get the first detailed mode and the very first mode */ |
1153 | list_for_each_entry(modelist, head, list) { |
1154 | m = &modelist->mode; |
1155 | |
1156 | if (!first) { |
1157 | m1 = m; |
1158 | first = 1; |
1159 | } |
1160 | |
1161 | if (m->flag & FB_MODE_IS_FIRST) { |
1162 | md = m; |
1163 | break; |
1164 | } |
1165 | } |
1166 | |
1167 | /* first detailed timing is preferred */ |
1168 | if (specs->misc & FB_MISC_1ST_DETAIL) { |
1169 | best = md; |
1170 | goto finished; |
1171 | } |
1172 | |
1173 | /* find best mode based on display width and height */ |
1174 | if (specs->max_x && specs->max_y) { |
1175 | struct fb_var_screeninfo var; |
1176 | |
1177 | memset(&var, 0, sizeof(struct fb_var_screeninfo)); |
1178 | var.xres = (specs->max_x * 7200)/254; |
1179 | var.yres = (specs->max_y * 7200)/254; |
1180 | m = fb_find_best_mode(var: &var, head); |
1181 | if (m) { |
1182 | best = m; |
1183 | goto finished; |
1184 | } |
1185 | } |
1186 | |
1187 | /* use first detailed mode */ |
1188 | if (md) { |
1189 | best = md; |
1190 | goto finished; |
1191 | } |
1192 | |
1193 | /* last resort, use the very first mode */ |
1194 | best = m1; |
1195 | finished: |
1196 | return best; |
1197 | } |
1198 | EXPORT_SYMBOL(fb_find_best_display); |
1199 | |
1200 | EXPORT_SYMBOL(fb_videomode_to_var); |
1201 | EXPORT_SYMBOL(fb_var_to_videomode); |
1202 | EXPORT_SYMBOL(fb_mode_is_equal); |
1203 | EXPORT_SYMBOL(fb_add_videomode); |
1204 | EXPORT_SYMBOL(fb_match_mode); |
1205 | EXPORT_SYMBOL(fb_find_best_mode); |
1206 | EXPORT_SYMBOL(fb_find_nearest_mode); |
1207 | EXPORT_SYMBOL(fb_videomode_to_modelist); |
1208 | EXPORT_SYMBOL(fb_find_mode); |
1209 | EXPORT_SYMBOL(fb_find_mode_cvt); |
1210 | |