2 * Copyright (c) 2006 Luc Verhaegen (quirks list)
3 * Copyright (c) 2007-2008 Intel Corporation
4 * Jesse Barnes <jesse.barnes@intel.com>
5 * Copyright 2010 Red Hat, Inc.
7 * DDC probing routines (drm_ddc_read & drm_do_probe_ddc_edid) originally from
9 * Copyright (C) 2006 Dennis Munsie <dmunsie@cecropia.com>
11 * Permission is hereby granted, free of charge, to any person obtaining a
12 * copy of this software and associated documentation files (the "Software"),
13 * to deal in the Software without restriction, including without limitation
14 * the rights to use, copy, modify, merge, publish, distribute, sub license,
15 * and/or sell copies of the Software, and to permit persons to whom the
16 * Software is furnished to do so, subject to the following conditions:
18 * The above copyright notice and this permission notice (including the
19 * next paragraph) shall be included in all copies or substantial portions
22 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
23 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
24 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
25 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
26 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
27 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
28 * DEALINGS IN THE SOFTWARE.
30 #include <linux/kernel.h>
31 #include <linux/slab.h>
32 #include <linux/hdmi.h>
33 #include <linux/i2c.h>
34 #include <linux/module.h>
36 #include <drm/drm_edid.h>
38 #define version_greater(edid, maj, min) \
39 (((edid)->version > (maj)) || \
40 ((edid)->version == (maj) && (edid)->revision > (min)))
42 #define EDID_EST_TIMINGS 16
43 #define EDID_STD_TIMINGS 8
44 #define EDID_DETAILED_TIMINGS 4
47 * EDID blocks out in the wild have a variety of bugs, try to collect
48 * them here (note that userspace may work around broken monitors first,
49 * but fixes should make their way here so that the kernel "just works"
50 * on as many displays as possible).
53 /* First detailed mode wrong, use largest 60Hz mode */
54 #define EDID_QUIRK_PREFER_LARGE_60 (1 << 0)
55 /* Reported 135MHz pixel clock is too high, needs adjustment */
56 #define EDID_QUIRK_135_CLOCK_TOO_HIGH (1 << 1)
57 /* Prefer the largest mode at 75 Hz */
58 #define EDID_QUIRK_PREFER_LARGE_75 (1 << 2)
59 /* Detail timing is in cm not mm */
60 #define EDID_QUIRK_DETAILED_IN_CM (1 << 3)
61 /* Detailed timing descriptors have bogus size values, so just take the
62 * maximum size and use that.
64 #define EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE (1 << 4)
65 /* Monitor forgot to set the first detailed is preferred bit. */
66 #define EDID_QUIRK_FIRST_DETAILED_PREFERRED (1 << 5)
67 /* use +hsync +vsync for detailed mode */
68 #define EDID_QUIRK_DETAILED_SYNC_PP (1 << 6)
69 /* Force reduced-blanking timings for detailed modes */
70 #define EDID_QUIRK_FORCE_REDUCED_BLANKING (1 << 7)
72 struct detailed_mode_closure
{
73 struct drm_connector
*connector
;
85 static struct edid_quirk
{
89 } edid_quirk_list
[] = {
91 { "ACR", 44358, EDID_QUIRK_PREFER_LARGE_60
},
93 { "API", 0x7602, EDID_QUIRK_PREFER_LARGE_60
},
95 { "ACR", 2423, EDID_QUIRK_FIRST_DETAILED_PREFERRED
},
97 /* Belinea 10 15 55 */
98 { "MAX", 1516, EDID_QUIRK_PREFER_LARGE_60
},
99 { "MAX", 0x77e, EDID_QUIRK_PREFER_LARGE_60
},
101 /* Envision Peripherals, Inc. EN-7100e */
102 { "EPI", 59264, EDID_QUIRK_135_CLOCK_TOO_HIGH
},
103 /* Envision EN2028 */
104 { "EPI", 8232, EDID_QUIRK_PREFER_LARGE_60
},
106 /* Funai Electronics PM36B */
107 { "FCM", 13600, EDID_QUIRK_PREFER_LARGE_75
|
108 EDID_QUIRK_DETAILED_IN_CM
},
110 /* LG Philips LCD LP154W01-A5 */
111 { "LPL", 0, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE
},
112 { "LPL", 0x2a00, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE
},
114 /* Philips 107p5 CRT */
115 { "PHL", 57364, EDID_QUIRK_FIRST_DETAILED_PREFERRED
},
118 { "PTS", 765, EDID_QUIRK_FIRST_DETAILED_PREFERRED
},
120 /* Samsung SyncMaster 205BW. Note: irony */
121 { "SAM", 541, EDID_QUIRK_DETAILED_SYNC_PP
},
122 /* Samsung SyncMaster 22[5-6]BW */
123 { "SAM", 596, EDID_QUIRK_PREFER_LARGE_60
},
124 { "SAM", 638, EDID_QUIRK_PREFER_LARGE_60
},
126 /* ViewSonic VA2026w */
127 { "VSC", 5020, EDID_QUIRK_FORCE_REDUCED_BLANKING
},
129 /* Medion MD 30217 PG */
130 { "MED", 0x7b8, EDID_QUIRK_PREFER_LARGE_75
},
134 * Autogenerated from the DMT spec.
135 * This table is copied from xfree86/modes/xf86EdidModes.c.
137 static const struct drm_display_mode drm_dmt_modes
[] = {
139 { DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER
, 31500, 640, 672,
140 736, 832, 0, 350, 382, 385, 445, 0,
141 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
143 { DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER
, 31500, 640, 672,
144 736, 832, 0, 400, 401, 404, 445, 0,
145 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
147 { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER
, 35500, 720, 756,
148 828, 936, 0, 400, 401, 404, 446, 0,
149 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
151 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER
, 25175, 640, 656,
152 752, 800, 0, 480, 489, 492, 525, 0,
153 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
155 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER
, 31500, 640, 664,
156 704, 832, 0, 480, 489, 492, 520, 0,
157 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
159 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER
, 31500, 640, 656,
160 720, 840, 0, 480, 481, 484, 500, 0,
161 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
163 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER
, 36000, 640, 696,
164 752, 832, 0, 480, 481, 484, 509, 0,
165 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
167 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER
, 36000, 800, 824,
168 896, 1024, 0, 600, 601, 603, 625, 0,
169 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
171 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER
, 40000, 800, 840,
172 968, 1056, 0, 600, 601, 605, 628, 0,
173 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
175 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER
, 50000, 800, 856,
176 976, 1040, 0, 600, 637, 643, 666, 0,
177 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
179 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER
, 49500, 800, 816,
180 896, 1056, 0, 600, 601, 604, 625, 0,
181 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
183 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER
, 56250, 800, 832,
184 896, 1048, 0, 600, 601, 604, 631, 0,
185 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
186 /* 800x600@120Hz RB */
187 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER
, 73250, 800, 848,
188 880, 960, 0, 600, 603, 607, 636, 0,
189 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
191 { DRM_MODE("848x480", DRM_MODE_TYPE_DRIVER
, 33750, 848, 864,
192 976, 1088, 0, 480, 486, 494, 517, 0,
193 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
194 /* 1024x768@43Hz, interlace */
195 { DRM_MODE("1024x768i", DRM_MODE_TYPE_DRIVER
, 44900, 1024, 1032,
196 1208, 1264, 0, 768, 768, 772, 817, 0,
197 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
|
198 DRM_MODE_FLAG_INTERLACE
) },
200 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER
, 65000, 1024, 1048,
201 1184, 1344, 0, 768, 771, 777, 806, 0,
202 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
204 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER
, 75000, 1024, 1048,
205 1184, 1328, 0, 768, 771, 777, 806, 0,
206 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
208 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER
, 78750, 1024, 1040,
209 1136, 1312, 0, 768, 769, 772, 800, 0,
210 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
212 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER
, 94500, 1024, 1072,
213 1168, 1376, 0, 768, 769, 772, 808, 0,
214 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
215 /* 1024x768@120Hz RB */
216 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER
, 115500, 1024, 1072,
217 1104, 1184, 0, 768, 771, 775, 813, 0,
218 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
220 { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER
, 108000, 1152, 1216,
221 1344, 1600, 0, 864, 865, 868, 900, 0,
222 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
223 /* 1280x768@60Hz RB */
224 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER
, 68250, 1280, 1328,
225 1360, 1440, 0, 768, 771, 778, 790, 0,
226 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
228 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER
, 79500, 1280, 1344,
229 1472, 1664, 0, 768, 771, 778, 798, 0,
230 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
232 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER
, 102250, 1280, 1360,
233 1488, 1696, 0, 768, 771, 778, 805, 0,
234 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
236 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER
, 117500, 1280, 1360,
237 1496, 1712, 0, 768, 771, 778, 809, 0,
238 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
239 /* 1280x768@120Hz RB */
240 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER
, 140250, 1280, 1328,
241 1360, 1440, 0, 768, 771, 778, 813, 0,
242 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
243 /* 1280x800@60Hz RB */
244 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER
, 71000, 1280, 1328,
245 1360, 1440, 0, 800, 803, 809, 823, 0,
246 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
248 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER
, 83500, 1280, 1352,
249 1480, 1680, 0, 800, 803, 809, 831, 0,
250 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
252 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER
, 106500, 1280, 1360,
253 1488, 1696, 0, 800, 803, 809, 838, 0,
254 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
256 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER
, 122500, 1280, 1360,
257 1496, 1712, 0, 800, 803, 809, 843, 0,
258 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
259 /* 1280x800@120Hz RB */
260 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER
, 146250, 1280, 1328,
261 1360, 1440, 0, 800, 803, 809, 847, 0,
262 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
264 { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER
, 108000, 1280, 1376,
265 1488, 1800, 0, 960, 961, 964, 1000, 0,
266 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
268 { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER
, 148500, 1280, 1344,
269 1504, 1728, 0, 960, 961, 964, 1011, 0,
270 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
271 /* 1280x960@120Hz RB */
272 { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER
, 175500, 1280, 1328,
273 1360, 1440, 0, 960, 963, 967, 1017, 0,
274 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
276 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER
, 108000, 1280, 1328,
277 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
278 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
280 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER
, 135000, 1280, 1296,
281 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
282 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
284 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER
, 157500, 1280, 1344,
285 1504, 1728, 0, 1024, 1025, 1028, 1072, 0,
286 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
287 /* 1280x1024@120Hz RB */
288 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER
, 187250, 1280, 1328,
289 1360, 1440, 0, 1024, 1027, 1034, 1084, 0,
290 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
292 { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER
, 85500, 1360, 1424,
293 1536, 1792, 0, 768, 771, 777, 795, 0,
294 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
295 /* 1360x768@120Hz RB */
296 { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER
, 148250, 1360, 1408,
297 1440, 1520, 0, 768, 771, 776, 813, 0,
298 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
299 /* 1400x1050@60Hz RB */
300 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER
, 101000, 1400, 1448,
301 1480, 1560, 0, 1050, 1053, 1057, 1080, 0,
302 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
304 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER
, 121750, 1400, 1488,
305 1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
306 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
308 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER
, 156000, 1400, 1504,
309 1648, 1896, 0, 1050, 1053, 1057, 1099, 0,
310 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
312 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER
, 179500, 1400, 1504,
313 1656, 1912, 0, 1050, 1053, 1057, 1105, 0,
314 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
315 /* 1400x1050@120Hz RB */
316 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER
, 208000, 1400, 1448,
317 1480, 1560, 0, 1050, 1053, 1057, 1112, 0,
318 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
319 /* 1440x900@60Hz RB */
320 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER
, 88750, 1440, 1488,
321 1520, 1600, 0, 900, 903, 909, 926, 0,
322 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
324 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER
, 106500, 1440, 1520,
325 1672, 1904, 0, 900, 903, 909, 934, 0,
326 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
328 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER
, 136750, 1440, 1536,
329 1688, 1936, 0, 900, 903, 909, 942, 0,
330 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
332 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER
, 157000, 1440, 1544,
333 1696, 1952, 0, 900, 903, 909, 948, 0,
334 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
335 /* 1440x900@120Hz RB */
336 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER
, 182750, 1440, 1488,
337 1520, 1600, 0, 900, 903, 909, 953, 0,
338 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
340 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER
, 162000, 1600, 1664,
341 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
342 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
344 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER
, 175500, 1600, 1664,
345 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
346 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
348 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER
, 189000, 1600, 1664,
349 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
350 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
352 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER
, 202500, 1600, 1664,
353 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
354 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
356 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER
, 229500, 1600, 1664,
357 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
358 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
359 /* 1600x1200@120Hz RB */
360 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER
, 268250, 1600, 1648,
361 1680, 1760, 0, 1200, 1203, 1207, 1271, 0,
362 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
363 /* 1680x1050@60Hz RB */
364 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER
, 119000, 1680, 1728,
365 1760, 1840, 0, 1050, 1053, 1059, 1080, 0,
366 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
368 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER
, 146250, 1680, 1784,
369 1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
370 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
372 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER
, 187000, 1680, 1800,
373 1976, 2272, 0, 1050, 1053, 1059, 1099, 0,
374 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
376 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER
, 214750, 1680, 1808,
377 1984, 2288, 0, 1050, 1053, 1059, 1105, 0,
378 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
379 /* 1680x1050@120Hz RB */
380 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER
, 245500, 1680, 1728,
381 1760, 1840, 0, 1050, 1053, 1059, 1112, 0,
382 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
384 { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER
, 204750, 1792, 1920,
385 2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
386 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
388 { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER
, 261000, 1792, 1888,
389 2104, 2456, 0, 1344, 1345, 1348, 1417, 0,
390 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
391 /* 1792x1344@120Hz RB */
392 { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER
, 333250, 1792, 1840,
393 1872, 1952, 0, 1344, 1347, 1351, 1423, 0,
394 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
396 { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER
, 218250, 1856, 1952,
397 2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
398 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
400 { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER
, 288000, 1856, 1984,
401 2208, 2560, 0, 1392, 1395, 1399, 1500, 0,
402 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
403 /* 1856x1392@120Hz RB */
404 { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER
, 356500, 1856, 1904,
405 1936, 2016, 0, 1392, 1395, 1399, 1474, 0,
406 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
407 /* 1920x1200@60Hz RB */
408 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER
, 154000, 1920, 1968,
409 2000, 2080, 0, 1200, 1203, 1209, 1235, 0,
410 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
412 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER
, 193250, 1920, 2056,
413 2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
414 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
416 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER
, 245250, 1920, 2056,
417 2264, 2608, 0, 1200, 1203, 1209, 1255, 0,
418 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
420 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER
, 281250, 1920, 2064,
421 2272, 2624, 0, 1200, 1203, 1209, 1262, 0,
422 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
423 /* 1920x1200@120Hz RB */
424 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER
, 317000, 1920, 1968,
425 2000, 2080, 0, 1200, 1203, 1209, 1271, 0,
426 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
428 { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER
, 234000, 1920, 2048,
429 2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
430 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
432 { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER
, 297000, 1920, 2064,
433 2288, 2640, 0, 1440, 1441, 1444, 1500, 0,
434 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
435 /* 1920x1440@120Hz RB */
436 { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER
, 380500, 1920, 1968,
437 2000, 2080, 0, 1440, 1443, 1447, 1525, 0,
438 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
439 /* 2560x1600@60Hz RB */
440 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER
, 268500, 2560, 2608,
441 2640, 2720, 0, 1600, 1603, 1609, 1646, 0,
442 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
444 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER
, 348500, 2560, 2752,
445 3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
446 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
448 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER
, 443250, 2560, 2768,
449 3048, 3536, 0, 1600, 1603, 1609, 1672, 0,
450 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
452 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER
, 505250, 2560, 2768,
453 3048, 3536, 0, 1600, 1603, 1609, 1682, 0,
454 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) },
455 /* 2560x1600@120Hz RB */
456 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER
, 552750, 2560, 2608,
457 2640, 2720, 0, 1600, 1603, 1609, 1694, 0,
458 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
) },
462 * These more or less come from the DMT spec. The 720x400 modes are
463 * inferred from historical 80x25 practice. The 640x480@67 and 832x624@75
464 * modes are old-school Mac modes. The EDID spec says the 1152x864@75 mode
465 * should be 1152x870, again for the Mac, but instead we use the x864 DMT
468 * The DMT modes have been fact-checked; the rest are mild guesses.
470 static const struct drm_display_mode edid_est_modes
[] = {
471 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER
, 40000, 800, 840,
472 968, 1056, 0, 600, 601, 605, 628, 0,
473 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) }, /* 800x600@60Hz */
474 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER
, 36000, 800, 824,
475 896, 1024, 0, 600, 601, 603, 625, 0,
476 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) }, /* 800x600@56Hz */
477 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER
, 31500, 640, 656,
478 720, 840, 0, 480, 481, 484, 500, 0,
479 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
) }, /* 640x480@75Hz */
480 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER
, 31500, 640, 664,
481 704, 832, 0, 480, 489, 491, 520, 0,
482 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
) }, /* 640x480@72Hz */
483 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER
, 30240, 640, 704,
484 768, 864, 0, 480, 483, 486, 525, 0,
485 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
) }, /* 640x480@67Hz */
486 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER
, 25200, 640, 656,
487 752, 800, 0, 480, 490, 492, 525, 0,
488 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
) }, /* 640x480@60Hz */
489 { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER
, 35500, 720, 738,
490 846, 900, 0, 400, 421, 423, 449, 0,
491 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
) }, /* 720x400@88Hz */
492 { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER
, 28320, 720, 738,
493 846, 900, 0, 400, 412, 414, 449, 0,
494 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_PVSYNC
) }, /* 720x400@70Hz */
495 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER
, 135000, 1280, 1296,
496 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
497 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) }, /* 1280x1024@75Hz */
498 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER
, 78800, 1024, 1040,
499 1136, 1312, 0, 768, 769, 772, 800, 0,
500 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) }, /* 1024x768@75Hz */
501 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER
, 75000, 1024, 1048,
502 1184, 1328, 0, 768, 771, 777, 806, 0,
503 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
) }, /* 1024x768@70Hz */
504 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER
, 65000, 1024, 1048,
505 1184, 1344, 0, 768, 771, 777, 806, 0,
506 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
) }, /* 1024x768@60Hz */
507 { DRM_MODE("1024x768i", DRM_MODE_TYPE_DRIVER
,44900, 1024, 1032,
508 1208, 1264, 0, 768, 768, 776, 817, 0,
509 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
| DRM_MODE_FLAG_INTERLACE
) }, /* 1024x768@43Hz */
510 { DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER
, 57284, 832, 864,
511 928, 1152, 0, 624, 625, 628, 667, 0,
512 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
) }, /* 832x624@75Hz */
513 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER
, 49500, 800, 816,
514 896, 1056, 0, 600, 601, 604, 625, 0,
515 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) }, /* 800x600@75Hz */
516 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER
, 50000, 800, 856,
517 976, 1040, 0, 600, 637, 643, 666, 0,
518 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) }, /* 800x600@72Hz */
519 { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER
, 108000, 1152, 1216,
520 1344, 1600, 0, 864, 865, 868, 900, 0,
521 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
) }, /* 1152x864@75Hz */
531 static const struct minimode est3_modes
[] = {
539 { 1024, 768, 85, 0 },
540 { 1152, 864, 75, 0 },
542 { 1280, 768, 60, 1 },
543 { 1280, 768, 60, 0 },
544 { 1280, 768, 75, 0 },
545 { 1280, 768, 85, 0 },
546 { 1280, 960, 60, 0 },
547 { 1280, 960, 85, 0 },
548 { 1280, 1024, 60, 0 },
549 { 1280, 1024, 85, 0 },
551 { 1360, 768, 60, 0 },
552 { 1440, 900, 60, 1 },
553 { 1440, 900, 60, 0 },
554 { 1440, 900, 75, 0 },
555 { 1440, 900, 85, 0 },
556 { 1400, 1050, 60, 1 },
557 { 1400, 1050, 60, 0 },
558 { 1400, 1050, 75, 0 },
560 { 1400, 1050, 85, 0 },
561 { 1680, 1050, 60, 1 },
562 { 1680, 1050, 60, 0 },
563 { 1680, 1050, 75, 0 },
564 { 1680, 1050, 85, 0 },
565 { 1600, 1200, 60, 0 },
566 { 1600, 1200, 65, 0 },
567 { 1600, 1200, 70, 0 },
569 { 1600, 1200, 75, 0 },
570 { 1600, 1200, 85, 0 },
571 { 1792, 1344, 60, 0 },
572 { 1792, 1344, 75, 0 },
573 { 1856, 1392, 60, 0 },
574 { 1856, 1392, 75, 0 },
575 { 1920, 1200, 60, 1 },
576 { 1920, 1200, 60, 0 },
578 { 1920, 1200, 75, 0 },
579 { 1920, 1200, 85, 0 },
580 { 1920, 1440, 60, 0 },
581 { 1920, 1440, 75, 0 },
584 static const struct minimode extra_modes
[] = {
585 { 1024, 576, 60, 0 },
586 { 1366, 768, 60, 0 },
587 { 1600, 900, 60, 0 },
588 { 1680, 945, 60, 0 },
589 { 1920, 1080, 60, 0 },
590 { 2048, 1152, 60, 0 },
591 { 2048, 1536, 60, 0 },
595 * Probably taken from CEA-861 spec.
596 * This table is converted from xorg's hw/xfree86/modes/xf86EdidModes.c.
598 static const struct drm_display_mode edid_cea_modes
[] = {
599 /* 1 - 640x480@60Hz */
600 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER
, 25175, 640, 656,
601 752, 800, 0, 480, 490, 492, 525, 0,
602 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
604 /* 2 - 720x480@60Hz */
605 { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER
, 27000, 720, 736,
606 798, 858, 0, 480, 489, 495, 525, 0,
607 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
609 /* 3 - 720x480@60Hz */
610 { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER
, 27000, 720, 736,
611 798, 858, 0, 480, 489, 495, 525, 0,
612 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
614 /* 4 - 1280x720@60Hz */
615 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER
, 74250, 1280, 1390,
616 1430, 1650, 0, 720, 725, 730, 750, 0,
617 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
),
619 /* 5 - 1920x1080i@60Hz */
620 { DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER
, 74250, 1920, 2008,
621 2052, 2200, 0, 1080, 1084, 1094, 1125, 0,
622 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
|
623 DRM_MODE_FLAG_INTERLACE
),
625 /* 6 - 1440x480i@60Hz */
626 { DRM_MODE("1440x480i", DRM_MODE_TYPE_DRIVER
, 27000, 1440, 1478,
627 1602, 1716, 0, 480, 488, 494, 525, 0,
628 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
|
629 DRM_MODE_FLAG_INTERLACE
| DRM_MODE_FLAG_DBLCLK
),
631 /* 7 - 1440x480i@60Hz */
632 { DRM_MODE("1440x480i", DRM_MODE_TYPE_DRIVER
, 27000, 1440, 1478,
633 1602, 1716, 0, 480, 488, 494, 525, 0,
634 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
|
635 DRM_MODE_FLAG_INTERLACE
| DRM_MODE_FLAG_DBLCLK
),
637 /* 8 - 1440x240@60Hz */
638 { DRM_MODE("1440x240", DRM_MODE_TYPE_DRIVER
, 27000, 1440, 1478,
639 1602, 1716, 0, 240, 244, 247, 262, 0,
640 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
|
641 DRM_MODE_FLAG_DBLCLK
),
643 /* 9 - 1440x240@60Hz */
644 { DRM_MODE("1440x240", DRM_MODE_TYPE_DRIVER
, 27000, 1440, 1478,
645 1602, 1716, 0, 240, 244, 247, 262, 0,
646 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
|
647 DRM_MODE_FLAG_DBLCLK
),
649 /* 10 - 2880x480i@60Hz */
650 { DRM_MODE("2880x480i", DRM_MODE_TYPE_DRIVER
, 54000, 2880, 2956,
651 3204, 3432, 0, 480, 488, 494, 525, 0,
652 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
|
653 DRM_MODE_FLAG_INTERLACE
),
655 /* 11 - 2880x480i@60Hz */
656 { DRM_MODE("2880x480i", DRM_MODE_TYPE_DRIVER
, 54000, 2880, 2956,
657 3204, 3432, 0, 480, 488, 494, 525, 0,
658 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
|
659 DRM_MODE_FLAG_INTERLACE
),
661 /* 12 - 2880x240@60Hz */
662 { DRM_MODE("2880x240", DRM_MODE_TYPE_DRIVER
, 54000, 2880, 2956,
663 3204, 3432, 0, 240, 244, 247, 262, 0,
664 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
666 /* 13 - 2880x240@60Hz */
667 { DRM_MODE("2880x240", DRM_MODE_TYPE_DRIVER
, 54000, 2880, 2956,
668 3204, 3432, 0, 240, 244, 247, 262, 0,
669 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
671 /* 14 - 1440x480@60Hz */
672 { DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER
, 54000, 1440, 1472,
673 1596, 1716, 0, 480, 489, 495, 525, 0,
674 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
676 /* 15 - 1440x480@60Hz */
677 { DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER
, 54000, 1440, 1472,
678 1596, 1716, 0, 480, 489, 495, 525, 0,
679 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
681 /* 16 - 1920x1080@60Hz */
682 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER
, 148500, 1920, 2008,
683 2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
684 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
),
686 /* 17 - 720x576@50Hz */
687 { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER
, 27000, 720, 732,
688 796, 864, 0, 576, 581, 586, 625, 0,
689 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
691 /* 18 - 720x576@50Hz */
692 { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER
, 27000, 720, 732,
693 796, 864, 0, 576, 581, 586, 625, 0,
694 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
696 /* 19 - 1280x720@50Hz */
697 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER
, 74250, 1280, 1720,
698 1760, 1980, 0, 720, 725, 730, 750, 0,
699 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
),
701 /* 20 - 1920x1080i@50Hz */
702 { DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER
, 74250, 1920, 2448,
703 2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
704 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
|
705 DRM_MODE_FLAG_INTERLACE
),
707 /* 21 - 1440x576i@50Hz */
708 { DRM_MODE("1440x576i", DRM_MODE_TYPE_DRIVER
, 27000, 1440, 1464,
709 1590, 1728, 0, 576, 580, 586, 625, 0,
710 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
|
711 DRM_MODE_FLAG_INTERLACE
| DRM_MODE_FLAG_DBLCLK
),
713 /* 22 - 1440x576i@50Hz */
714 { DRM_MODE("1440x576i", DRM_MODE_TYPE_DRIVER
, 27000, 1440, 1464,
715 1590, 1728, 0, 576, 580, 586, 625, 0,
716 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
|
717 DRM_MODE_FLAG_INTERLACE
| DRM_MODE_FLAG_DBLCLK
),
719 /* 23 - 1440x288@50Hz */
720 { DRM_MODE("1440x288", DRM_MODE_TYPE_DRIVER
, 27000, 1440, 1464,
721 1590, 1728, 0, 288, 290, 293, 312, 0,
722 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
|
723 DRM_MODE_FLAG_DBLCLK
),
725 /* 24 - 1440x288@50Hz */
726 { DRM_MODE("1440x288", DRM_MODE_TYPE_DRIVER
, 27000, 1440, 1464,
727 1590, 1728, 0, 288, 290, 293, 312, 0,
728 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
|
729 DRM_MODE_FLAG_DBLCLK
),
731 /* 25 - 2880x576i@50Hz */
732 { DRM_MODE("2880x576i", DRM_MODE_TYPE_DRIVER
, 54000, 2880, 2928,
733 3180, 3456, 0, 576, 580, 586, 625, 0,
734 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
|
735 DRM_MODE_FLAG_INTERLACE
),
737 /* 26 - 2880x576i@50Hz */
738 { DRM_MODE("2880x576i", DRM_MODE_TYPE_DRIVER
, 54000, 2880, 2928,
739 3180, 3456, 0, 576, 580, 586, 625, 0,
740 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
|
741 DRM_MODE_FLAG_INTERLACE
),
743 /* 27 - 2880x288@50Hz */
744 { DRM_MODE("2880x288", DRM_MODE_TYPE_DRIVER
, 54000, 2880, 2928,
745 3180, 3456, 0, 288, 290, 293, 312, 0,
746 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
748 /* 28 - 2880x288@50Hz */
749 { DRM_MODE("2880x288", DRM_MODE_TYPE_DRIVER
, 54000, 2880, 2928,
750 3180, 3456, 0, 288, 290, 293, 312, 0,
751 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
753 /* 29 - 1440x576@50Hz */
754 { DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER
, 54000, 1440, 1464,
755 1592, 1728, 0, 576, 581, 586, 625, 0,
756 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
758 /* 30 - 1440x576@50Hz */
759 { DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER
, 54000, 1440, 1464,
760 1592, 1728, 0, 576, 581, 586, 625, 0,
761 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
763 /* 31 - 1920x1080@50Hz */
764 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER
, 148500, 1920, 2448,
765 2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
766 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
),
768 /* 32 - 1920x1080@24Hz */
769 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER
, 74250, 1920, 2558,
770 2602, 2750, 0, 1080, 1084, 1089, 1125, 0,
771 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
),
773 /* 33 - 1920x1080@25Hz */
774 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER
, 74250, 1920, 2448,
775 2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
776 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
),
778 /* 34 - 1920x1080@30Hz */
779 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER
, 74250, 1920, 2008,
780 2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
781 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
),
783 /* 35 - 2880x480@60Hz */
784 { DRM_MODE("2880x480", DRM_MODE_TYPE_DRIVER
, 108000, 2880, 2944,
785 3192, 3432, 0, 480, 489, 495, 525, 0,
786 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
788 /* 36 - 2880x480@60Hz */
789 { DRM_MODE("2880x480", DRM_MODE_TYPE_DRIVER
, 108000, 2880, 2944,
790 3192, 3432, 0, 480, 489, 495, 525, 0,
791 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
793 /* 37 - 2880x576@50Hz */
794 { DRM_MODE("2880x576", DRM_MODE_TYPE_DRIVER
, 108000, 2880, 2928,
795 3184, 3456, 0, 576, 581, 586, 625, 0,
796 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
798 /* 38 - 2880x576@50Hz */
799 { DRM_MODE("2880x576", DRM_MODE_TYPE_DRIVER
, 108000, 2880, 2928,
800 3184, 3456, 0, 576, 581, 586, 625, 0,
801 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
803 /* 39 - 1920x1080i@50Hz */
804 { DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER
, 72000, 1920, 1952,
805 2120, 2304, 0, 1080, 1126, 1136, 1250, 0,
806 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_NVSYNC
|
807 DRM_MODE_FLAG_INTERLACE
),
809 /* 40 - 1920x1080i@100Hz */
810 { DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER
, 148500, 1920, 2448,
811 2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
812 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
|
813 DRM_MODE_FLAG_INTERLACE
),
815 /* 41 - 1280x720@100Hz */
816 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER
, 148500, 1280, 1720,
817 1760, 1980, 0, 720, 725, 730, 750, 0,
818 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
),
820 /* 42 - 720x576@100Hz */
821 { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER
, 54000, 720, 732,
822 796, 864, 0, 576, 581, 586, 625, 0,
823 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
825 /* 43 - 720x576@100Hz */
826 { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER
, 54000, 720, 732,
827 796, 864, 0, 576, 581, 586, 625, 0,
828 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
830 /* 44 - 1440x576i@100Hz */
831 { DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER
, 54000, 1440, 1464,
832 1590, 1728, 0, 576, 580, 586, 625, 0,
833 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
|
834 DRM_MODE_FLAG_DBLCLK
),
836 /* 45 - 1440x576i@100Hz */
837 { DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER
, 54000, 1440, 1464,
838 1590, 1728, 0, 576, 580, 586, 625, 0,
839 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
|
840 DRM_MODE_FLAG_DBLCLK
),
842 /* 46 - 1920x1080i@120Hz */
843 { DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER
, 148500, 1920, 2008,
844 2052, 2200, 0, 1080, 1084, 1094, 1125, 0,
845 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
|
846 DRM_MODE_FLAG_INTERLACE
),
848 /* 47 - 1280x720@120Hz */
849 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER
, 148500, 1280, 1390,
850 1430, 1650, 0, 720, 725, 730, 750, 0,
851 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
),
853 /* 48 - 720x480@120Hz */
854 { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER
, 54000, 720, 736,
855 798, 858, 0, 480, 489, 495, 525, 0,
856 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
858 /* 49 - 720x480@120Hz */
859 { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER
, 54000, 720, 736,
860 798, 858, 0, 480, 489, 495, 525, 0,
861 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
863 /* 50 - 1440x480i@120Hz */
864 { DRM_MODE("1440x480i", DRM_MODE_TYPE_DRIVER
, 54000, 1440, 1478,
865 1602, 1716, 0, 480, 488, 494, 525, 0,
866 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
|
867 DRM_MODE_FLAG_INTERLACE
| DRM_MODE_FLAG_DBLCLK
),
869 /* 51 - 1440x480i@120Hz */
870 { DRM_MODE("1440x480i", DRM_MODE_TYPE_DRIVER
, 54000, 1440, 1478,
871 1602, 1716, 0, 480, 488, 494, 525, 0,
872 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
|
873 DRM_MODE_FLAG_INTERLACE
| DRM_MODE_FLAG_DBLCLK
),
875 /* 52 - 720x576@200Hz */
876 { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER
, 108000, 720, 732,
877 796, 864, 0, 576, 581, 586, 625, 0,
878 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
880 /* 53 - 720x576@200Hz */
881 { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER
, 108000, 720, 732,
882 796, 864, 0, 576, 581, 586, 625, 0,
883 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
885 /* 54 - 1440x576i@200Hz */
886 { DRM_MODE("1440x576i", DRM_MODE_TYPE_DRIVER
, 108000, 1440, 1464,
887 1590, 1728, 0, 576, 580, 586, 625, 0,
888 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
|
889 DRM_MODE_FLAG_INTERLACE
| DRM_MODE_FLAG_DBLCLK
),
891 /* 55 - 1440x576i@200Hz */
892 { DRM_MODE("1440x576i", DRM_MODE_TYPE_DRIVER
, 108000, 1440, 1464,
893 1590, 1728, 0, 576, 580, 586, 625, 0,
894 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
|
895 DRM_MODE_FLAG_INTERLACE
| DRM_MODE_FLAG_DBLCLK
),
897 /* 56 - 720x480@240Hz */
898 { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER
, 108000, 720, 736,
899 798, 858, 0, 480, 489, 495, 525, 0,
900 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
902 /* 57 - 720x480@240Hz */
903 { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER
, 108000, 720, 736,
904 798, 858, 0, 480, 489, 495, 525, 0,
905 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
907 /* 58 - 1440x480i@240 */
908 { DRM_MODE("1440x480i", DRM_MODE_TYPE_DRIVER
, 108000, 1440, 1478,
909 1602, 1716, 0, 480, 488, 494, 525, 0,
910 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
|
911 DRM_MODE_FLAG_INTERLACE
| DRM_MODE_FLAG_DBLCLK
),
913 /* 59 - 1440x480i@240 */
914 { DRM_MODE("1440x480i", DRM_MODE_TYPE_DRIVER
, 108000, 1440, 1478,
915 1602, 1716, 0, 480, 488, 494, 525, 0,
916 DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
|
917 DRM_MODE_FLAG_INTERLACE
| DRM_MODE_FLAG_DBLCLK
),
919 /* 60 - 1280x720@24Hz */
920 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER
, 59400, 1280, 3040,
921 3080, 3300, 0, 720, 725, 730, 750, 0,
922 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
),
924 /* 61 - 1280x720@25Hz */
925 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER
, 74250, 1280, 3700,
926 3740, 3960, 0, 720, 725, 730, 750, 0,
927 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
),
929 /* 62 - 1280x720@30Hz */
930 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER
, 74250, 1280, 3040,
931 3080, 3300, 0, 720, 725, 730, 750, 0,
932 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
),
934 /* 63 - 1920x1080@120Hz */
935 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER
, 297000, 1920, 2008,
936 2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
937 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
),
939 /* 64 - 1920x1080@100Hz */
940 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER
, 297000, 1920, 2448,
941 2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
942 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
),
949 static const struct drm_display_mode edid_4k_modes
[] = {
950 /* 1 - 3840x2160@30Hz */
951 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER
, 297000,
952 3840, 4016, 4104, 4400, 0,
953 2160, 2168, 2178, 2250, 0,
954 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
),
956 /* 2 - 3840x2160@25Hz */
957 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER
, 297000,
958 3840, 4896, 4984, 5280, 0,
959 2160, 2168, 2178, 2250, 0,
960 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
),
962 /* 3 - 3840x2160@24Hz */
963 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER
, 297000,
964 3840, 5116, 5204, 5500, 0,
965 2160, 2168, 2178, 2250, 0,
966 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
),
968 /* 4 - 4096x2160@24Hz (SMPTE) */
969 { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER
, 297000,
970 4096, 5116, 5204, 5500, 0,
971 2160, 2168, 2178, 2250, 0,
972 DRM_MODE_FLAG_PHSYNC
| DRM_MODE_FLAG_PVSYNC
),
976 /*** DDC fetch and block validation ***/
978 static const u8 edid_header
[] = {
979 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00
983 * Sanity check the header of the base EDID block. Return 8 if the header
984 * is perfect, down to 0 if it's totally wrong.
986 int drm_edid_header_is_valid(const u8
*raw_edid
)
990 for (i
= 0; i
< sizeof(edid_header
); i
++)
991 if (raw_edid
[i
] == edid_header
[i
])
996 EXPORT_SYMBOL(drm_edid_header_is_valid
);
998 static int edid_fixup __read_mostly
= 6;
999 module_param_named(edid_fixup
, edid_fixup
, int, 0400);
1000 MODULE_PARM_DESC(edid_fixup
,
1001 "Minimum number of valid EDID header bytes (0-8, default 6)");
1004 * Sanity check the EDID block (base or extension). Return 0 if the block
1005 * doesn't check out, or 1 if it's valid.
1007 bool drm_edid_block_valid(u8
*raw_edid
, int block
, bool print_bad_edid
)
1011 struct edid
*edid
= (struct edid
*)raw_edid
;
1013 if (WARN_ON(!raw_edid
))
1016 if (edid_fixup
> 8 || edid_fixup
< 0)
1020 int score
= drm_edid_header_is_valid(raw_edid
);
1022 else if (score
>= edid_fixup
) {
1023 DRM_DEBUG("Fixing EDID header, your hardware may be failing\n");
1024 memcpy(raw_edid
, edid_header
, sizeof(edid_header
));
1030 for (i
= 0; i
< EDID_LENGTH
; i
++)
1031 csum
+= raw_edid
[i
];
1033 if (print_bad_edid
) {
1034 DRM_ERROR("EDID checksum is invalid, remainder is %d\n", csum
);
1037 /* allow CEA to slide through, switches mangle this */
1038 if (raw_edid
[0] != 0x02)
1042 /* per-block-type checks */
1043 switch (raw_edid
[0]) {
1045 if (edid
->version
!= 1) {
1046 DRM_ERROR("EDID has major version %d, instead of 1\n", edid
->version
);
1050 if (edid
->revision
> 4)
1051 DRM_DEBUG("EDID minor > 4, assuming backward compatibility\n");
1061 if (print_bad_edid
) {
1062 printk(KERN_ERR
"Raw EDID:\n");
1063 print_hex_dump(KERN_ERR
, " \t", DUMP_PREFIX_NONE
, 16, 1,
1064 raw_edid
, EDID_LENGTH
, false);
1068 EXPORT_SYMBOL(drm_edid_block_valid
);
1071 * drm_edid_is_valid - sanity check EDID data
1074 * Sanity-check an entire EDID record (including extensions)
1076 bool drm_edid_is_valid(struct edid
*edid
)
1079 u8
*raw
= (u8
*)edid
;
1084 for (i
= 0; i
<= edid
->extensions
; i
++)
1085 if (!drm_edid_block_valid(raw
+ i
* EDID_LENGTH
, i
, true))
1090 EXPORT_SYMBOL(drm_edid_is_valid
);
1092 #define DDC_SEGMENT_ADDR 0x30
1094 * Get EDID information via I2C.
1096 * \param adapter : i2c device adaptor
1097 * \param buf : EDID data buffer to be filled
1098 * \param len : EDID data buffer length
1099 * \return 0 on success or -1 on failure.
1101 * Try to fetch EDID information by calling i2c driver function.
1104 drm_do_probe_ddc_edid(struct i2c_adapter
*adapter
, unsigned char *buf
,
1107 unsigned char start
= block
* EDID_LENGTH
;
1108 unsigned char segment
= block
>> 1;
1109 unsigned char xfers
= segment
? 3 : 2;
1110 int ret
, retries
= 5;
1112 /* The core i2c driver will automatically retry the transfer if the
1113 * adapter reports EAGAIN. However, we find that bit-banging transfers
1114 * are susceptible to errors under a heavily loaded machine and
1115 * generate spurious NAKs and timeouts. Retrying the transfer
1116 * of the individual block a few times seems to overcome this.
1119 struct i2c_msg msgs
[] = {
1121 .addr
= DDC_SEGMENT_ADDR
,
1139 * Avoid sending the segment addr to not upset non-compliant ddc
1142 ret
= i2c_transfer(adapter
, &msgs
[3 - xfers
], xfers
);
1144 if (ret
== -ENXIO
) {
1145 DRM_DEBUG_KMS("drm: skipping non-existent adapter %s\n",
1149 } while (ret
!= xfers
&& --retries
);
1151 return ret
== xfers
? 0 : -1;
1154 static bool drm_edid_is_zero(u8
*in_edid
, int length
)
1156 if (memchr_inv(in_edid
, 0, length
))
1163 drm_do_get_edid(struct drm_connector
*connector
, struct i2c_adapter
*adapter
)
1165 int i
, j
= 0, valid_extensions
= 0;
1167 bool print_bad_edid
= !connector
->bad_edid_counter
|| (drm_debug
& DRM_UT_KMS
);
1169 if ((block
= kmalloc(EDID_LENGTH
, GFP_KERNEL
)) == NULL
)
1172 /* base block fetch */
1173 for (i
= 0; i
< 4; i
++) {
1174 if (drm_do_probe_ddc_edid(adapter
, block
, 0, EDID_LENGTH
))
1176 if (drm_edid_block_valid(block
, 0, print_bad_edid
))
1178 if (i
== 0 && drm_edid_is_zero(block
, EDID_LENGTH
)) {
1179 connector
->null_edid_counter
++;
1186 /* if there's no extensions, we're done */
1187 if (block
[0x7e] == 0)
1190 new = krealloc(block
, (block
[0x7e] + 1) * EDID_LENGTH
, GFP_KERNEL
);
1195 for (j
= 1; j
<= block
[0x7e]; j
++) {
1196 for (i
= 0; i
< 4; i
++) {
1197 if (drm_do_probe_ddc_edid(adapter
,
1198 block
+ (valid_extensions
+ 1) * EDID_LENGTH
,
1201 if (drm_edid_block_valid(block
+ (valid_extensions
+ 1) * EDID_LENGTH
, j
, print_bad_edid
)) {
1207 if (i
== 4 && print_bad_edid
) {
1208 dev_warn(connector
->dev
->dev
,
1209 "%s: Ignoring invalid EDID block %d.\n",
1210 drm_get_connector_name(connector
), j
);
1212 connector
->bad_edid_counter
++;
1216 if (valid_extensions
!= block
[0x7e]) {
1217 block
[EDID_LENGTH
-1] += block
[0x7e] - valid_extensions
;
1218 block
[0x7e] = valid_extensions
;
1219 new = krealloc(block
, (valid_extensions
+ 1) * EDID_LENGTH
, GFP_KERNEL
);
1228 if (print_bad_edid
) {
1229 dev_warn(connector
->dev
->dev
, "%s: EDID block %d invalid.\n",
1230 drm_get_connector_name(connector
), j
);
1232 connector
->bad_edid_counter
++;
1240 * Probe DDC presence.
1242 * \param adapter : i2c device adaptor
1243 * \return 1 on success
1246 drm_probe_ddc(struct i2c_adapter
*adapter
)
1250 return (drm_do_probe_ddc_edid(adapter
, &out
, 0, 1) == 0);
1252 EXPORT_SYMBOL(drm_probe_ddc
);
1255 * drm_get_edid - get EDID data, if available
1256 * @connector: connector we're probing
1257 * @adapter: i2c adapter to use for DDC
1259 * Poke the given i2c channel to grab EDID data if possible. If found,
1260 * attach it to the connector.
1262 * Return edid data or NULL if we couldn't find any.
1264 struct edid
*drm_get_edid(struct drm_connector
*connector
,
1265 struct i2c_adapter
*adapter
)
1267 struct edid
*edid
= NULL
;
1269 if (drm_probe_ddc(adapter
))
1270 edid
= (struct edid
*)drm_do_get_edid(connector
, adapter
);
1274 EXPORT_SYMBOL(drm_get_edid
);
1277 * drm_edid_duplicate - duplicate an EDID and the extensions
1278 * @edid: EDID to duplicate
1280 * Return duplicate edid or NULL on allocation failure.
1282 struct edid
*drm_edid_duplicate(const struct edid
*edid
)
1284 return kmemdup(edid
, (edid
->extensions
+ 1) * EDID_LENGTH
, GFP_KERNEL
);
1286 EXPORT_SYMBOL(drm_edid_duplicate
);
1288 /*** EDID parsing ***/
1291 * edid_vendor - match a string against EDID's obfuscated vendor field
1292 * @edid: EDID to match
1293 * @vendor: vendor string
1295 * Returns true if @vendor is in @edid, false otherwise
1297 static bool edid_vendor(struct edid
*edid
, char *vendor
)
1299 char edid_vendor
[3];
1301 edid_vendor
[0] = ((edid
->mfg_id
[0] & 0x7c) >> 2) + '@';
1302 edid_vendor
[1] = (((edid
->mfg_id
[0] & 0x3) << 3) |
1303 ((edid
->mfg_id
[1] & 0xe0) >> 5)) + '@';
1304 edid_vendor
[2] = (edid
->mfg_id
[1] & 0x1f) + '@';
1306 return !strncmp(edid_vendor
, vendor
, 3);
1310 * edid_get_quirks - return quirk flags for a given EDID
1311 * @edid: EDID to process
1313 * This tells subsequent routines what fixes they need to apply.
1315 static u32
edid_get_quirks(struct edid
*edid
)
1317 struct edid_quirk
*quirk
;
1320 for (i
= 0; i
< ARRAY_SIZE(edid_quirk_list
); i
++) {
1321 quirk
= &edid_quirk_list
[i
];
1323 if (edid_vendor(edid
, quirk
->vendor
) &&
1324 (EDID_PRODUCT_ID(edid
) == quirk
->product_id
))
1325 return quirk
->quirks
;
1331 #define MODE_SIZE(m) ((m)->hdisplay * (m)->vdisplay)
1332 #define MODE_REFRESH_DIFF(c,t) (abs((c) - (t)))
1335 * edid_fixup_preferred - set preferred modes based on quirk list
1336 * @connector: has mode list to fix up
1337 * @quirks: quirks list
1339 * Walk the mode list for @connector, clearing the preferred status
1340 * on existing modes and setting it anew for the right mode ala @quirks.
1342 static void edid_fixup_preferred(struct drm_connector
*connector
,
1345 struct drm_display_mode
*t
, *cur_mode
, *preferred_mode
;
1346 int target_refresh
= 0;
1347 int cur_vrefresh
, preferred_vrefresh
;
1349 if (list_empty(&connector
->probed_modes
))
1352 if (quirks
& EDID_QUIRK_PREFER_LARGE_60
)
1353 target_refresh
= 60;
1354 if (quirks
& EDID_QUIRK_PREFER_LARGE_75
)
1355 target_refresh
= 75;
1357 preferred_mode
= list_first_entry(&connector
->probed_modes
,
1358 struct drm_display_mode
, head
);
1360 list_for_each_entry_safe(cur_mode
, t
, &connector
->probed_modes
, head
) {
1361 cur_mode
->type
&= ~DRM_MODE_TYPE_PREFERRED
;
1363 if (cur_mode
== preferred_mode
)
1366 /* Largest mode is preferred */
1367 if (MODE_SIZE(cur_mode
) > MODE_SIZE(preferred_mode
))
1368 preferred_mode
= cur_mode
;
1370 cur_vrefresh
= cur_mode
->vrefresh
?
1371 cur_mode
->vrefresh
: drm_mode_vrefresh(cur_mode
);
1372 preferred_vrefresh
= preferred_mode
->vrefresh
?
1373 preferred_mode
->vrefresh
: drm_mode_vrefresh(preferred_mode
);
1374 /* At a given size, try to get closest to target refresh */
1375 if ((MODE_SIZE(cur_mode
) == MODE_SIZE(preferred_mode
)) &&
1376 MODE_REFRESH_DIFF(cur_vrefresh
, target_refresh
) <
1377 MODE_REFRESH_DIFF(preferred_vrefresh
, target_refresh
)) {
1378 preferred_mode
= cur_mode
;
1382 preferred_mode
->type
|= DRM_MODE_TYPE_PREFERRED
;
1386 mode_is_rb(const struct drm_display_mode
*mode
)
1388 return (mode
->htotal
- mode
->hdisplay
== 160) &&
1389 (mode
->hsync_end
- mode
->hdisplay
== 80) &&
1390 (mode
->hsync_end
- mode
->hsync_start
== 32) &&
1391 (mode
->vsync_start
- mode
->vdisplay
== 3);
1395 * drm_mode_find_dmt - Create a copy of a mode if present in DMT
1396 * @dev: Device to duplicate against
1397 * @hsize: Mode width
1398 * @vsize: Mode height
1399 * @fresh: Mode refresh rate
1400 * @rb: Mode reduced-blanking-ness
1402 * Walk the DMT mode list looking for a match for the given parameters.
1403 * Return a newly allocated copy of the mode, or NULL if not found.
1405 struct drm_display_mode
*drm_mode_find_dmt(struct drm_device
*dev
,
1406 int hsize
, int vsize
, int fresh
,
1411 for (i
= 0; i
< ARRAY_SIZE(drm_dmt_modes
); i
++) {
1412 const struct drm_display_mode
*ptr
= &drm_dmt_modes
[i
];
1413 if (hsize
!= ptr
->hdisplay
)
1415 if (vsize
!= ptr
->vdisplay
)
1417 if (fresh
!= drm_mode_vrefresh(ptr
))
1419 if (rb
!= mode_is_rb(ptr
))
1422 return drm_mode_duplicate(dev
, ptr
);
1427 EXPORT_SYMBOL(drm_mode_find_dmt
);
1429 typedef void detailed_cb(struct detailed_timing
*timing
, void *closure
);
1432 cea_for_each_detailed_block(u8
*ext
, detailed_cb
*cb
, void *closure
)
1436 u8
*det_base
= ext
+ d
;
1439 for (i
= 0; i
< n
; i
++)
1440 cb((struct detailed_timing
*)(det_base
+ 18 * i
), closure
);
1444 vtb_for_each_detailed_block(u8
*ext
, detailed_cb
*cb
, void *closure
)
1446 unsigned int i
, n
= min((int)ext
[0x02], 6);
1447 u8
*det_base
= ext
+ 5;
1450 return; /* unknown version */
1452 for (i
= 0; i
< n
; i
++)
1453 cb((struct detailed_timing
*)(det_base
+ 18 * i
), closure
);
1457 drm_for_each_detailed_block(u8
*raw_edid
, detailed_cb
*cb
, void *closure
)
1460 struct edid
*edid
= (struct edid
*)raw_edid
;
1465 for (i
= 0; i
< EDID_DETAILED_TIMINGS
; i
++)
1466 cb(&(edid
->detailed_timings
[i
]), closure
);
1468 for (i
= 1; i
<= raw_edid
[0x7e]; i
++) {
1469 u8
*ext
= raw_edid
+ (i
* EDID_LENGTH
);
1472 cea_for_each_detailed_block(ext
, cb
, closure
);
1475 vtb_for_each_detailed_block(ext
, cb
, closure
);
1484 is_rb(struct detailed_timing
*t
, void *data
)
1487 if (r
[3] == EDID_DETAIL_MONITOR_RANGE
)
1489 *(bool *)data
= true;
1492 /* EDID 1.4 defines this explicitly. For EDID 1.3, we guess, badly. */
1494 drm_monitor_supports_rb(struct edid
*edid
)
1496 if (edid
->revision
>= 4) {
1498 drm_for_each_detailed_block((u8
*)edid
, is_rb
, &ret
);
1502 return ((edid
->input
& DRM_EDID_INPUT_DIGITAL
) != 0);
1506 find_gtf2(struct detailed_timing
*t
, void *data
)
1509 if (r
[3] == EDID_DETAIL_MONITOR_RANGE
&& r
[10] == 0x02)
1513 /* Secondary GTF curve kicks in above some break frequency */
1515 drm_gtf2_hbreak(struct edid
*edid
)
1518 drm_for_each_detailed_block((u8
*)edid
, find_gtf2
, &r
);
1519 return r
? (r
[12] * 2) : 0;
1523 drm_gtf2_2c(struct edid
*edid
)
1526 drm_for_each_detailed_block((u8
*)edid
, find_gtf2
, &r
);
1527 return r
? r
[13] : 0;
1531 drm_gtf2_m(struct edid
*edid
)
1534 drm_for_each_detailed_block((u8
*)edid
, find_gtf2
, &r
);
1535 return r
? (r
[15] << 8) + r
[14] : 0;
1539 drm_gtf2_k(struct edid
*edid
)
1542 drm_for_each_detailed_block((u8
*)edid
, find_gtf2
, &r
);
1543 return r
? r
[16] : 0;
1547 drm_gtf2_2j(struct edid
*edid
)
1550 drm_for_each_detailed_block((u8
*)edid
, find_gtf2
, &r
);
1551 return r
? r
[17] : 0;
1555 * standard_timing_level - get std. timing level(CVT/GTF/DMT)
1556 * @edid: EDID block to scan
1558 static int standard_timing_level(struct edid
*edid
)
1560 if (edid
->revision
>= 2) {
1561 if (edid
->revision
>= 4 && (edid
->features
& DRM_EDID_FEATURE_DEFAULT_GTF
))
1563 if (drm_gtf2_hbreak(edid
))
1571 * 0 is reserved. The spec says 0x01 fill for unused timings. Some old
1572 * monitors fill with ascii space (0x20) instead.
1575 bad_std_timing(u8 a
, u8 b
)
1577 return (a
== 0x00 && b
== 0x00) ||
1578 (a
== 0x01 && b
== 0x01) ||
1579 (a
== 0x20 && b
== 0x20);
1583 * drm_mode_std - convert standard mode info (width, height, refresh) into mode
1584 * @t: standard timing params
1585 * @timing_level: standard timing level
1587 * Take the standard timing params (in this case width, aspect, and refresh)
1588 * and convert them into a real mode using CVT/GTF/DMT.
1590 static struct drm_display_mode
*
1591 drm_mode_std(struct drm_connector
*connector
, struct edid
*edid
,
1592 struct std_timing
*t
, int revision
)
1594 struct drm_device
*dev
= connector
->dev
;
1595 struct drm_display_mode
*m
, *mode
= NULL
;
1598 unsigned aspect_ratio
= (t
->vfreq_aspect
& EDID_TIMING_ASPECT_MASK
)
1599 >> EDID_TIMING_ASPECT_SHIFT
;
1600 unsigned vfreq
= (t
->vfreq_aspect
& EDID_TIMING_VFREQ_MASK
)
1601 >> EDID_TIMING_VFREQ_SHIFT
;
1602 int timing_level
= standard_timing_level(edid
);
1604 if (bad_std_timing(t
->hsize
, t
->vfreq_aspect
))
1607 /* According to the EDID spec, the hdisplay = hsize * 8 + 248 */
1608 hsize
= t
->hsize
* 8 + 248;
1609 /* vrefresh_rate = vfreq + 60 */
1610 vrefresh_rate
= vfreq
+ 60;
1611 /* the vdisplay is calculated based on the aspect ratio */
1612 if (aspect_ratio
== 0) {
1616 vsize
= (hsize
* 10) / 16;
1617 } else if (aspect_ratio
== 1)
1618 vsize
= (hsize
* 3) / 4;
1619 else if (aspect_ratio
== 2)
1620 vsize
= (hsize
* 4) / 5;
1622 vsize
= (hsize
* 9) / 16;
1624 /* HDTV hack, part 1 */
1625 if (vrefresh_rate
== 60 &&
1626 ((hsize
== 1360 && vsize
== 765) ||
1627 (hsize
== 1368 && vsize
== 769))) {
1633 * If this connector already has a mode for this size and refresh
1634 * rate (because it came from detailed or CVT info), use that
1635 * instead. This way we don't have to guess at interlace or
1638 list_for_each_entry(m
, &connector
->probed_modes
, head
)
1639 if (m
->hdisplay
== hsize
&& m
->vdisplay
== vsize
&&
1640 drm_mode_vrefresh(m
) == vrefresh_rate
)
1643 /* HDTV hack, part 2 */
1644 if (hsize
== 1366 && vsize
== 768 && vrefresh_rate
== 60) {
1645 mode
= drm_cvt_mode(dev
, 1366, 768, vrefresh_rate
, 0, 0,
1647 mode
->hdisplay
= 1366;
1648 mode
->hsync_start
= mode
->hsync_start
- 1;
1649 mode
->hsync_end
= mode
->hsync_end
- 1;
1653 /* check whether it can be found in default mode table */
1654 if (drm_monitor_supports_rb(edid
)) {
1655 mode
= drm_mode_find_dmt(dev
, hsize
, vsize
, vrefresh_rate
,
1660 mode
= drm_mode_find_dmt(dev
, hsize
, vsize
, vrefresh_rate
, false);
1664 /* okay, generate it */
1665 switch (timing_level
) {
1669 mode
= drm_gtf_mode(dev
, hsize
, vsize
, vrefresh_rate
, 0, 0);
1673 * This is potentially wrong if there's ever a monitor with
1674 * more than one ranges section, each claiming a different
1675 * secondary GTF curve. Please don't do that.
1677 mode
= drm_gtf_mode(dev
, hsize
, vsize
, vrefresh_rate
, 0, 0);
1680 if (drm_mode_hsync(mode
) > drm_gtf2_hbreak(edid
)) {
1681 drm_mode_destroy(dev
, mode
);
1682 mode
= drm_gtf_mode_complex(dev
, hsize
, vsize
,
1683 vrefresh_rate
, 0, 0,
1691 mode
= drm_cvt_mode(dev
, hsize
, vsize
, vrefresh_rate
, 0, 0,
1699 * EDID is delightfully ambiguous about how interlaced modes are to be
1700 * encoded. Our internal representation is of frame height, but some
1701 * HDTV detailed timings are encoded as field height.
1703 * The format list here is from CEA, in frame size. Technically we
1704 * should be checking refresh rate too. Whatever.
1707 drm_mode_do_interlace_quirk(struct drm_display_mode
*mode
,
1708 struct detailed_pixel_timing
*pt
)
1711 static const struct {
1713 } cea_interlaced
[] = {
1723 if (!(pt
->misc
& DRM_EDID_PT_INTERLACED
))
1726 for (i
= 0; i
< ARRAY_SIZE(cea_interlaced
); i
++) {
1727 if ((mode
->hdisplay
== cea_interlaced
[i
].w
) &&
1728 (mode
->vdisplay
== cea_interlaced
[i
].h
/ 2)) {
1729 mode
->vdisplay
*= 2;
1730 mode
->vsync_start
*= 2;
1731 mode
->vsync_end
*= 2;
1737 mode
->flags
|= DRM_MODE_FLAG_INTERLACE
;
1741 * drm_mode_detailed - create a new mode from an EDID detailed timing section
1742 * @dev: DRM device (needed to create new mode)
1744 * @timing: EDID detailed timing info
1745 * @quirks: quirks to apply
1747 * An EDID detailed timing block contains enough info for us to create and
1748 * return a new struct drm_display_mode.
1750 static struct drm_display_mode
*drm_mode_detailed(struct drm_device
*dev
,
1752 struct detailed_timing
*timing
,
1755 struct drm_display_mode
*mode
;
1756 struct detailed_pixel_timing
*pt
= &timing
->data
.pixel_data
;
1757 unsigned hactive
= (pt
->hactive_hblank_hi
& 0xf0) << 4 | pt
->hactive_lo
;
1758 unsigned vactive
= (pt
->vactive_vblank_hi
& 0xf0) << 4 | pt
->vactive_lo
;
1759 unsigned hblank
= (pt
->hactive_hblank_hi
& 0xf) << 8 | pt
->hblank_lo
;
1760 unsigned vblank
= (pt
->vactive_vblank_hi
& 0xf) << 8 | pt
->vblank_lo
;
1761 unsigned hsync_offset
= (pt
->hsync_vsync_offset_pulse_width_hi
& 0xc0) << 2 | pt
->hsync_offset_lo
;
1762 unsigned hsync_pulse_width
= (pt
->hsync_vsync_offset_pulse_width_hi
& 0x30) << 4 | pt
->hsync_pulse_width_lo
;
1763 unsigned vsync_offset
= (pt
->hsync_vsync_offset_pulse_width_hi
& 0xc) << 2 | pt
->vsync_offset_pulse_width_lo
>> 4;
1764 unsigned vsync_pulse_width
= (pt
->hsync_vsync_offset_pulse_width_hi
& 0x3) << 4 | (pt
->vsync_offset_pulse_width_lo
& 0xf);
1766 /* ignore tiny modes */
1767 if (hactive
< 64 || vactive
< 64)
1770 if (pt
->misc
& DRM_EDID_PT_STEREO
) {
1771 DRM_DEBUG_KMS("stereo mode not supported\n");
1774 if (!(pt
->misc
& DRM_EDID_PT_SEPARATE_SYNC
)) {
1775 DRM_DEBUG_KMS("composite sync not supported\n");
1778 /* it is incorrect if hsync/vsync width is zero */
1779 if (!hsync_pulse_width
|| !vsync_pulse_width
) {
1780 DRM_DEBUG_KMS("Incorrect Detailed timing. "
1781 "Wrong Hsync/Vsync pulse width\n");
1785 if (quirks
& EDID_QUIRK_FORCE_REDUCED_BLANKING
) {
1786 mode
= drm_cvt_mode(dev
, hactive
, vactive
, 60, true, false, false);
1793 mode
= drm_mode_create(dev
);
1797 if (quirks
& EDID_QUIRK_135_CLOCK_TOO_HIGH
)
1798 timing
->pixel_clock
= cpu_to_le16(1088);
1800 mode
->clock
= le16_to_cpu(timing
->pixel_clock
) * 10;
1802 mode
->hdisplay
= hactive
;
1803 mode
->hsync_start
= mode
->hdisplay
+ hsync_offset
;
1804 mode
->hsync_end
= mode
->hsync_start
+ hsync_pulse_width
;
1805 mode
->htotal
= mode
->hdisplay
+ hblank
;
1807 mode
->vdisplay
= vactive
;
1808 mode
->vsync_start
= mode
->vdisplay
+ vsync_offset
;
1809 mode
->vsync_end
= mode
->vsync_start
+ vsync_pulse_width
;
1810 mode
->vtotal
= mode
->vdisplay
+ vblank
;
1812 /* Some EDIDs have bogus h/vtotal values */
1813 if (mode
->hsync_end
> mode
->htotal
)
1814 mode
->htotal
= mode
->hsync_end
+ 1;
1815 if (mode
->vsync_end
> mode
->vtotal
)
1816 mode
->vtotal
= mode
->vsync_end
+ 1;
1818 drm_mode_do_interlace_quirk(mode
, pt
);
1820 if (quirks
& EDID_QUIRK_DETAILED_SYNC_PP
) {
1821 pt
->misc
|= DRM_EDID_PT_HSYNC_POSITIVE
| DRM_EDID_PT_VSYNC_POSITIVE
;
1824 mode
->flags
|= (pt
->misc
& DRM_EDID_PT_HSYNC_POSITIVE
) ?
1825 DRM_MODE_FLAG_PHSYNC
: DRM_MODE_FLAG_NHSYNC
;
1826 mode
->flags
|= (pt
->misc
& DRM_EDID_PT_VSYNC_POSITIVE
) ?
1827 DRM_MODE_FLAG_PVSYNC
: DRM_MODE_FLAG_NVSYNC
;
1830 mode
->width_mm
= pt
->width_mm_lo
| (pt
->width_height_mm_hi
& 0xf0) << 4;
1831 mode
->height_mm
= pt
->height_mm_lo
| (pt
->width_height_mm_hi
& 0xf) << 8;
1833 if (quirks
& EDID_QUIRK_DETAILED_IN_CM
) {
1834 mode
->width_mm
*= 10;
1835 mode
->height_mm
*= 10;
1838 if (quirks
& EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE
) {
1839 mode
->width_mm
= edid
->width_cm
* 10;
1840 mode
->height_mm
= edid
->height_cm
* 10;
1843 mode
->type
= DRM_MODE_TYPE_DRIVER
;
1844 mode
->vrefresh
= drm_mode_vrefresh(mode
);
1845 drm_mode_set_name(mode
);
1851 mode_in_hsync_range(const struct drm_display_mode
*mode
,
1852 struct edid
*edid
, u8
*t
)
1854 int hsync
, hmin
, hmax
;
1857 if (edid
->revision
>= 4)
1858 hmin
+= ((t
[4] & 0x04) ? 255 : 0);
1860 if (edid
->revision
>= 4)
1861 hmax
+= ((t
[4] & 0x08) ? 255 : 0);
1862 hsync
= drm_mode_hsync(mode
);
1864 return (hsync
<= hmax
&& hsync
>= hmin
);
1868 mode_in_vsync_range(const struct drm_display_mode
*mode
,
1869 struct edid
*edid
, u8
*t
)
1871 int vsync
, vmin
, vmax
;
1874 if (edid
->revision
>= 4)
1875 vmin
+= ((t
[4] & 0x01) ? 255 : 0);
1877 if (edid
->revision
>= 4)
1878 vmax
+= ((t
[4] & 0x02) ? 255 : 0);
1879 vsync
= drm_mode_vrefresh(mode
);
1881 return (vsync
<= vmax
&& vsync
>= vmin
);
1885 range_pixel_clock(struct edid
*edid
, u8
*t
)
1888 if (t
[9] == 0 || t
[9] == 255)
1891 /* 1.4 with CVT support gives us real precision, yay */
1892 if (edid
->revision
>= 4 && t
[10] == 0x04)
1893 return (t
[9] * 10000) - ((t
[12] >> 2) * 250);
1895 /* 1.3 is pathetic, so fuzz up a bit */
1896 return t
[9] * 10000 + 5001;
1900 mode_in_range(const struct drm_display_mode
*mode
, struct edid
*edid
,
1901 struct detailed_timing
*timing
)
1904 u8
*t
= (u8
*)timing
;
1906 if (!mode_in_hsync_range(mode
, edid
, t
))
1909 if (!mode_in_vsync_range(mode
, edid
, t
))
1912 if ((max_clock
= range_pixel_clock(edid
, t
)))
1913 if (mode
->clock
> max_clock
)
1916 /* 1.4 max horizontal check */
1917 if (edid
->revision
>= 4 && t
[10] == 0x04)
1918 if (t
[13] && mode
->hdisplay
> 8 * (t
[13] + (256 * (t
[12]&0x3))))
1921 if (mode_is_rb(mode
) && !drm_monitor_supports_rb(edid
))
1927 static bool valid_inferred_mode(const struct drm_connector
*connector
,
1928 const struct drm_display_mode
*mode
)
1930 struct drm_display_mode
*m
;
1933 list_for_each_entry(m
, &connector
->probed_modes
, head
) {
1934 if (mode
->hdisplay
== m
->hdisplay
&&
1935 mode
->vdisplay
== m
->vdisplay
&&
1936 drm_mode_vrefresh(mode
) == drm_mode_vrefresh(m
))
1937 return false; /* duplicated */
1938 if (mode
->hdisplay
<= m
->hdisplay
&&
1939 mode
->vdisplay
<= m
->vdisplay
)
1946 drm_dmt_modes_for_range(struct drm_connector
*connector
, struct edid
*edid
,
1947 struct detailed_timing
*timing
)
1950 struct drm_display_mode
*newmode
;
1951 struct drm_device
*dev
= connector
->dev
;
1953 for (i
= 0; i
< ARRAY_SIZE(drm_dmt_modes
); i
++) {
1954 if (mode_in_range(drm_dmt_modes
+ i
, edid
, timing
) &&
1955 valid_inferred_mode(connector
, drm_dmt_modes
+ i
)) {
1956 newmode
= drm_mode_duplicate(dev
, &drm_dmt_modes
[i
]);
1958 drm_mode_probed_add(connector
, newmode
);
1967 /* fix up 1366x768 mode from 1368x768;
1968 * GFT/CVT can't express 1366 width which isn't dividable by 8
1970 static void fixup_mode_1366x768(struct drm_display_mode
*mode
)
1972 if (mode
->hdisplay
== 1368 && mode
->vdisplay
== 768) {
1973 mode
->hdisplay
= 1366;
1974 mode
->hsync_start
--;
1976 drm_mode_set_name(mode
);
1981 drm_gtf_modes_for_range(struct drm_connector
*connector
, struct edid
*edid
,
1982 struct detailed_timing
*timing
)
1985 struct drm_display_mode
*newmode
;
1986 struct drm_device
*dev
= connector
->dev
;
1988 for (i
= 0; i
< ARRAY_SIZE(extra_modes
); i
++) {
1989 const struct minimode
*m
= &extra_modes
[i
];
1990 newmode
= drm_gtf_mode(dev
, m
->w
, m
->h
, m
->r
, 0, 0);
1994 fixup_mode_1366x768(newmode
);
1995 if (!mode_in_range(newmode
, edid
, timing
) ||
1996 !valid_inferred_mode(connector
, newmode
)) {
1997 drm_mode_destroy(dev
, newmode
);
2001 drm_mode_probed_add(connector
, newmode
);
2009 drm_cvt_modes_for_range(struct drm_connector
*connector
, struct edid
*edid
,
2010 struct detailed_timing
*timing
)
2013 struct drm_display_mode
*newmode
;
2014 struct drm_device
*dev
= connector
->dev
;
2015 bool rb
= drm_monitor_supports_rb(edid
);
2017 for (i
= 0; i
< ARRAY_SIZE(extra_modes
); i
++) {
2018 const struct minimode
*m
= &extra_modes
[i
];
2019 newmode
= drm_cvt_mode(dev
, m
->w
, m
->h
, m
->r
, rb
, 0, 0);
2023 fixup_mode_1366x768(newmode
);
2024 if (!mode_in_range(newmode
, edid
, timing
) ||
2025 !valid_inferred_mode(connector
, newmode
)) {
2026 drm_mode_destroy(dev
, newmode
);
2030 drm_mode_probed_add(connector
, newmode
);
2038 do_inferred_modes(struct detailed_timing
*timing
, void *c
)
2040 struct detailed_mode_closure
*closure
= c
;
2041 struct detailed_non_pixel
*data
= &timing
->data
.other_data
;
2042 struct detailed_data_monitor_range
*range
= &data
->data
.range
;
2044 if (data
->type
!= EDID_DETAIL_MONITOR_RANGE
)
2047 closure
->modes
+= drm_dmt_modes_for_range(closure
->connector
,
2051 if (!version_greater(closure
->edid
, 1, 1))
2052 return; /* GTF not defined yet */
2054 switch (range
->flags
) {
2055 case 0x02: /* secondary gtf, XXX could do more */
2056 case 0x00: /* default gtf */
2057 closure
->modes
+= drm_gtf_modes_for_range(closure
->connector
,
2061 case 0x04: /* cvt, only in 1.4+ */
2062 if (!version_greater(closure
->edid
, 1, 3))
2065 closure
->modes
+= drm_cvt_modes_for_range(closure
->connector
,
2069 case 0x01: /* just the ranges, no formula */
2076 add_inferred_modes(struct drm_connector
*connector
, struct edid
*edid
)
2078 struct detailed_mode_closure closure
= {
2079 connector
, edid
, 0, 0, 0
2082 if (version_greater(edid
, 1, 0))
2083 drm_for_each_detailed_block((u8
*)edid
, do_inferred_modes
,
2086 return closure
.modes
;
2090 drm_est3_modes(struct drm_connector
*connector
, struct detailed_timing
*timing
)
2092 int i
, j
, m
, modes
= 0;
2093 struct drm_display_mode
*mode
;
2094 u8
*est
= ((u8
*)timing
) + 5;
2096 for (i
= 0; i
< 6; i
++) {
2097 for (j
= 7; j
>= 0; j
--) {
2098 m
= (i
* 8) + (7 - j
);
2099 if (m
>= ARRAY_SIZE(est3_modes
))
2101 if (est
[i
] & (1 << j
)) {
2102 mode
= drm_mode_find_dmt(connector
->dev
,
2108 drm_mode_probed_add(connector
, mode
);
2119 do_established_modes(struct detailed_timing
*timing
, void *c
)
2121 struct detailed_mode_closure
*closure
= c
;
2122 struct detailed_non_pixel
*data
= &timing
->data
.other_data
;
2124 if (data
->type
== EDID_DETAIL_EST_TIMINGS
)
2125 closure
->modes
+= drm_est3_modes(closure
->connector
, timing
);
2129 * add_established_modes - get est. modes from EDID and add them
2130 * @edid: EDID block to scan
2132 * Each EDID block contains a bitmap of the supported "established modes" list
2133 * (defined above). Tease them out and add them to the global modes list.
2136 add_established_modes(struct drm_connector
*connector
, struct edid
*edid
)
2138 struct drm_device
*dev
= connector
->dev
;
2139 unsigned long est_bits
= edid
->established_timings
.t1
|
2140 (edid
->established_timings
.t2
<< 8) |
2141 ((edid
->established_timings
.mfg_rsvd
& 0x80) << 9);
2143 struct detailed_mode_closure closure
= {
2144 connector
, edid
, 0, 0, 0
2147 for (i
= 0; i
<= EDID_EST_TIMINGS
; i
++) {
2148 if (est_bits
& (1<<i
)) {
2149 struct drm_display_mode
*newmode
;
2150 newmode
= drm_mode_duplicate(dev
, &edid_est_modes
[i
]);
2152 drm_mode_probed_add(connector
, newmode
);
2158 if (version_greater(edid
, 1, 0))
2159 drm_for_each_detailed_block((u8
*)edid
,
2160 do_established_modes
, &closure
);
2162 return modes
+ closure
.modes
;
2166 do_standard_modes(struct detailed_timing
*timing
, void *c
)
2168 struct detailed_mode_closure
*closure
= c
;
2169 struct detailed_non_pixel
*data
= &timing
->data
.other_data
;
2170 struct drm_connector
*connector
= closure
->connector
;
2171 struct edid
*edid
= closure
->edid
;
2173 if (data
->type
== EDID_DETAIL_STD_MODES
) {
2175 for (i
= 0; i
< 6; i
++) {
2176 struct std_timing
*std
;
2177 struct drm_display_mode
*newmode
;
2179 std
= &data
->data
.timings
[i
];
2180 newmode
= drm_mode_std(connector
, edid
, std
,
2183 drm_mode_probed_add(connector
, newmode
);
2191 * add_standard_modes - get std. modes from EDID and add them
2192 * @edid: EDID block to scan
2194 * Standard modes can be calculated using the appropriate standard (DMT,
2195 * GTF or CVT. Grab them from @edid and add them to the list.
2198 add_standard_modes(struct drm_connector
*connector
, struct edid
*edid
)
2201 struct detailed_mode_closure closure
= {
2202 connector
, edid
, 0, 0, 0
2205 for (i
= 0; i
< EDID_STD_TIMINGS
; i
++) {
2206 struct drm_display_mode
*newmode
;
2208 newmode
= drm_mode_std(connector
, edid
,
2209 &edid
->standard_timings
[i
],
2212 drm_mode_probed_add(connector
, newmode
);
2217 if (version_greater(edid
, 1, 0))
2218 drm_for_each_detailed_block((u8
*)edid
, do_standard_modes
,
2221 /* XXX should also look for standard codes in VTB blocks */
2223 return modes
+ closure
.modes
;
2226 static int drm_cvt_modes(struct drm_connector
*connector
,
2227 struct detailed_timing
*timing
)
2229 int i
, j
, modes
= 0;
2230 struct drm_display_mode
*newmode
;
2231 struct drm_device
*dev
= connector
->dev
;
2232 struct cvt_timing
*cvt
;
2233 const int rates
[] = { 60, 85, 75, 60, 50 };
2234 const u8 empty
[3] = { 0, 0, 0 };
2236 for (i
= 0; i
< 4; i
++) {
2237 int uninitialized_var(width
), height
;
2238 cvt
= &(timing
->data
.other_data
.data
.cvt
[i
]);
2240 if (!memcmp(cvt
->code
, empty
, 3))
2243 height
= (cvt
->code
[0] + ((cvt
->code
[1] & 0xf0) << 4) + 1) * 2;
2244 switch (cvt
->code
[1] & 0x0c) {
2246 width
= height
* 4 / 3;
2249 width
= height
* 16 / 9;
2252 width
= height
* 16 / 10;
2255 width
= height
* 15 / 9;
2259 for (j
= 1; j
< 5; j
++) {
2260 if (cvt
->code
[2] & (1 << j
)) {
2261 newmode
= drm_cvt_mode(dev
, width
, height
,
2265 drm_mode_probed_add(connector
, newmode
);
2276 do_cvt_mode(struct detailed_timing
*timing
, void *c
)
2278 struct detailed_mode_closure
*closure
= c
;
2279 struct detailed_non_pixel
*data
= &timing
->data
.other_data
;
2281 if (data
->type
== EDID_DETAIL_CVT_3BYTE
)
2282 closure
->modes
+= drm_cvt_modes(closure
->connector
, timing
);
2286 add_cvt_modes(struct drm_connector
*connector
, struct edid
*edid
)
2288 struct detailed_mode_closure closure
= {
2289 connector
, edid
, 0, 0, 0
2292 if (version_greater(edid
, 1, 2))
2293 drm_for_each_detailed_block((u8
*)edid
, do_cvt_mode
, &closure
);
2295 /* XXX should also look for CVT codes in VTB blocks */
2297 return closure
.modes
;
2301 do_detailed_mode(struct detailed_timing
*timing
, void *c
)
2303 struct detailed_mode_closure
*closure
= c
;
2304 struct drm_display_mode
*newmode
;
2306 if (timing
->pixel_clock
) {
2307 newmode
= drm_mode_detailed(closure
->connector
->dev
,
2308 closure
->edid
, timing
,
2313 if (closure
->preferred
)
2314 newmode
->type
|= DRM_MODE_TYPE_PREFERRED
;
2316 drm_mode_probed_add(closure
->connector
, newmode
);
2318 closure
->preferred
= 0;
2323 * add_detailed_modes - Add modes from detailed timings
2324 * @connector: attached connector
2325 * @edid: EDID block to scan
2326 * @quirks: quirks to apply
2329 add_detailed_modes(struct drm_connector
*connector
, struct edid
*edid
,
2332 struct detailed_mode_closure closure
= {
2340 if (closure
.preferred
&& !version_greater(edid
, 1, 3))
2342 (edid
->features
& DRM_EDID_FEATURE_PREFERRED_TIMING
);
2344 drm_for_each_detailed_block((u8
*)edid
, do_detailed_mode
, &closure
);
2346 return closure
.modes
;
2349 #define AUDIO_BLOCK 0x01
2350 #define VIDEO_BLOCK 0x02
2351 #define VENDOR_BLOCK 0x03
2352 #define SPEAKER_BLOCK 0x04
2353 #define VIDEO_CAPABILITY_BLOCK 0x07
2354 #define EDID_BASIC_AUDIO (1 << 6)
2355 #define EDID_CEA_YCRCB444 (1 << 5)
2356 #define EDID_CEA_YCRCB422 (1 << 4)
2357 #define EDID_CEA_VCDB_QS (1 << 6)
2360 * Search EDID for CEA extension block.
2362 static u8
*drm_find_cea_extension(struct edid
*edid
)
2364 u8
*edid_ext
= NULL
;
2367 /* No EDID or EDID extensions */
2368 if (edid
== NULL
|| edid
->extensions
== 0)
2371 /* Find CEA extension */
2372 for (i
= 0; i
< edid
->extensions
; i
++) {
2373 edid_ext
= (u8
*)edid
+ EDID_LENGTH
* (i
+ 1);
2374 if (edid_ext
[0] == CEA_EXT
)
2378 if (i
== edid
->extensions
)
2385 * Calculate the alternate clock for the CEA mode
2386 * (60Hz vs. 59.94Hz etc.)
2389 cea_mode_alternate_clock(const struct drm_display_mode
*cea_mode
)
2391 unsigned int clock
= cea_mode
->clock
;
2393 if (cea_mode
->vrefresh
% 6 != 0)
2397 * edid_cea_modes contains the 59.94Hz
2398 * variant for 240 and 480 line modes,
2399 * and the 60Hz variant otherwise.
2401 if (cea_mode
->vdisplay
== 240 || cea_mode
->vdisplay
== 480)
2402 clock
= clock
* 1001 / 1000;
2404 clock
= DIV_ROUND_UP(clock
* 1000, 1001);
2410 * drm_match_cea_mode - look for a CEA mode matching given mode
2411 * @to_match: display mode
2413 * Returns the CEA Video ID (VIC) of the mode or 0 if it isn't a CEA-861
2416 u8
drm_match_cea_mode(const struct drm_display_mode
*to_match
)
2420 if (!to_match
->clock
)
2423 for (mode
= 0; mode
< ARRAY_SIZE(edid_cea_modes
); mode
++) {
2424 const struct drm_display_mode
*cea_mode
= &edid_cea_modes
[mode
];
2425 unsigned int clock1
, clock2
;
2427 /* Check both 60Hz and 59.94Hz */
2428 clock1
= cea_mode
->clock
;
2429 clock2
= cea_mode_alternate_clock(cea_mode
);
2431 if ((KHZ2PICOS(to_match
->clock
) == KHZ2PICOS(clock1
) ||
2432 KHZ2PICOS(to_match
->clock
) == KHZ2PICOS(clock2
)) &&
2433 drm_mode_equal_no_clocks_no_stereo(to_match
, cea_mode
))
2438 EXPORT_SYMBOL(drm_match_cea_mode
);
2441 * Calculate the alternate clock for HDMI modes (those from the HDMI vendor
2444 * It's almost like cea_mode_alternate_clock(), we just need to add an
2445 * exception for the VIC 4 mode (4096x2160@24Hz): no alternate clock for this
2449 hdmi_mode_alternate_clock(const struct drm_display_mode
*hdmi_mode
)
2451 if (hdmi_mode
->vdisplay
== 4096 && hdmi_mode
->hdisplay
== 2160)
2452 return hdmi_mode
->clock
;
2454 return cea_mode_alternate_clock(hdmi_mode
);
2458 * drm_match_hdmi_mode - look for a HDMI mode matching given mode
2459 * @to_match: display mode
2461 * An HDMI mode is one defined in the HDMI vendor specific block.
2463 * Returns the HDMI Video ID (VIC) of the mode or 0 if it isn't one.
2465 static u8
drm_match_hdmi_mode(const struct drm_display_mode
*to_match
)
2469 if (!to_match
->clock
)
2472 for (mode
= 0; mode
< ARRAY_SIZE(edid_4k_modes
); mode
++) {
2473 const struct drm_display_mode
*hdmi_mode
= &edid_4k_modes
[mode
];
2474 unsigned int clock1
, clock2
;
2476 /* Make sure to also match alternate clocks */
2477 clock1
= hdmi_mode
->clock
;
2478 clock2
= hdmi_mode_alternate_clock(hdmi_mode
);
2480 if ((KHZ2PICOS(to_match
->clock
) == KHZ2PICOS(clock1
) ||
2481 KHZ2PICOS(to_match
->clock
) == KHZ2PICOS(clock2
)) &&
2482 drm_mode_equal_no_clocks_no_stereo(to_match
, hdmi_mode
))
2489 add_alternate_cea_modes(struct drm_connector
*connector
, struct edid
*edid
)
2491 struct drm_device
*dev
= connector
->dev
;
2492 struct drm_display_mode
*mode
, *tmp
;
2496 /* Don't add CEA modes if the CEA extension block is missing */
2497 if (!drm_find_cea_extension(edid
))
2501 * Go through all probed modes and create a new mode
2502 * with the alternate clock for certain CEA modes.
2504 list_for_each_entry(mode
, &connector
->probed_modes
, head
) {
2505 const struct drm_display_mode
*cea_mode
= NULL
;
2506 struct drm_display_mode
*newmode
;
2507 u8 mode_idx
= drm_match_cea_mode(mode
) - 1;
2508 unsigned int clock1
, clock2
;
2510 if (mode_idx
< ARRAY_SIZE(edid_cea_modes
)) {
2511 cea_mode
= &edid_cea_modes
[mode_idx
];
2512 clock2
= cea_mode_alternate_clock(cea_mode
);
2514 mode_idx
= drm_match_hdmi_mode(mode
) - 1;
2515 if (mode_idx
< ARRAY_SIZE(edid_4k_modes
)) {
2516 cea_mode
= &edid_4k_modes
[mode_idx
];
2517 clock2
= hdmi_mode_alternate_clock(cea_mode
);
2524 clock1
= cea_mode
->clock
;
2526 if (clock1
== clock2
)
2529 if (mode
->clock
!= clock1
&& mode
->clock
!= clock2
)
2532 newmode
= drm_mode_duplicate(dev
, cea_mode
);
2536 /* Carry over the stereo flags */
2537 newmode
->flags
|= mode
->flags
& DRM_MODE_FLAG_3D_MASK
;
2540 * The current mode could be either variant. Make
2541 * sure to pick the "other" clock for the new mode.
2543 if (mode
->clock
!= clock1
)
2544 newmode
->clock
= clock1
;
2546 newmode
->clock
= clock2
;
2548 list_add_tail(&newmode
->head
, &list
);
2551 list_for_each_entry_safe(mode
, tmp
, &list
, head
) {
2552 list_del(&mode
->head
);
2553 drm_mode_probed_add(connector
, mode
);
2561 do_cea_modes(struct drm_connector
*connector
, const u8
*db
, u8 len
)
2563 struct drm_device
*dev
= connector
->dev
;
2568 for (mode
= db
; mode
< db
+ len
; mode
++) {
2569 cea_mode
= (*mode
& 127) - 1; /* CEA modes are numbered 1..127 */
2570 if (cea_mode
< ARRAY_SIZE(edid_cea_modes
)) {
2571 struct drm_display_mode
*newmode
;
2572 newmode
= drm_mode_duplicate(dev
,
2573 &edid_cea_modes
[cea_mode
]);
2575 newmode
->vrefresh
= 0;
2576 drm_mode_probed_add(connector
, newmode
);
2585 struct stereo_mandatory_mode
{
2586 int width
, height
, vrefresh
;
2590 static const struct stereo_mandatory_mode stereo_mandatory_modes
[] = {
2591 { 1920, 1080, 24, DRM_MODE_FLAG_3D_TOP_AND_BOTTOM
},
2592 { 1920, 1080, 24, DRM_MODE_FLAG_3D_FRAME_PACKING
},
2594 DRM_MODE_FLAG_INTERLACE
| DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF
},
2596 DRM_MODE_FLAG_INTERLACE
| DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF
},
2597 { 1280, 720, 50, DRM_MODE_FLAG_3D_TOP_AND_BOTTOM
},
2598 { 1280, 720, 50, DRM_MODE_FLAG_3D_FRAME_PACKING
},
2599 { 1280, 720, 60, DRM_MODE_FLAG_3D_TOP_AND_BOTTOM
},
2600 { 1280, 720, 60, DRM_MODE_FLAG_3D_FRAME_PACKING
}
2604 stereo_match_mandatory(const struct drm_display_mode
*mode
,
2605 const struct stereo_mandatory_mode
*stereo_mode
)
2607 unsigned int interlaced
= mode
->flags
& DRM_MODE_FLAG_INTERLACE
;
2609 return mode
->hdisplay
== stereo_mode
->width
&&
2610 mode
->vdisplay
== stereo_mode
->height
&&
2611 interlaced
== (stereo_mode
->flags
& DRM_MODE_FLAG_INTERLACE
) &&
2612 drm_mode_vrefresh(mode
) == stereo_mode
->vrefresh
;
2615 static int add_hdmi_mandatory_stereo_modes(struct drm_connector
*connector
)
2617 struct drm_device
*dev
= connector
->dev
;
2618 const struct drm_display_mode
*mode
;
2619 struct list_head stereo_modes
;
2622 INIT_LIST_HEAD(&stereo_modes
);
2624 list_for_each_entry(mode
, &connector
->probed_modes
, head
) {
2625 for (i
= 0; i
< ARRAY_SIZE(stereo_mandatory_modes
); i
++) {
2626 const struct stereo_mandatory_mode
*mandatory
;
2627 struct drm_display_mode
*new_mode
;
2629 if (!stereo_match_mandatory(mode
,
2630 &stereo_mandatory_modes
[i
]))
2633 mandatory
= &stereo_mandatory_modes
[i
];
2634 new_mode
= drm_mode_duplicate(dev
, mode
);
2638 new_mode
->flags
|= mandatory
->flags
;
2639 list_add_tail(&new_mode
->head
, &stereo_modes
);
2644 list_splice_tail(&stereo_modes
, &connector
->probed_modes
);
2649 static int add_hdmi_mode(struct drm_connector
*connector
, u8 vic
)
2651 struct drm_device
*dev
= connector
->dev
;
2652 struct drm_display_mode
*newmode
;
2654 vic
--; /* VICs start at 1 */
2655 if (vic
>= ARRAY_SIZE(edid_4k_modes
)) {
2656 DRM_ERROR("Unknown HDMI VIC: %d\n", vic
);
2660 newmode
= drm_mode_duplicate(dev
, &edid_4k_modes
[vic
]);
2664 drm_mode_probed_add(connector
, newmode
);
2669 static int add_3d_struct_modes(struct drm_connector
*connector
, u16 structure
,
2670 const u8
*video_db
, u8 video_len
, u8 video_index
)
2672 struct drm_device
*dev
= connector
->dev
;
2673 struct drm_display_mode
*newmode
;
2677 if (video_db
== NULL
|| video_index
>= video_len
)
2680 /* CEA modes are numbered 1..127 */
2681 cea_mode
= (video_db
[video_index
] & 127) - 1;
2682 if (cea_mode
>= ARRAY_SIZE(edid_cea_modes
))
2685 if (structure
& (1 << 0)) {
2686 newmode
= drm_mode_duplicate(dev
, &edid_cea_modes
[cea_mode
]);
2688 newmode
->flags
|= DRM_MODE_FLAG_3D_FRAME_PACKING
;
2689 drm_mode_probed_add(connector
, newmode
);
2693 if (structure
& (1 << 6)) {
2694 newmode
= drm_mode_duplicate(dev
, &edid_cea_modes
[cea_mode
]);
2696 newmode
->flags
|= DRM_MODE_FLAG_3D_TOP_AND_BOTTOM
;
2697 drm_mode_probed_add(connector
, newmode
);
2701 if (structure
& (1 << 8)) {
2702 newmode
= drm_mode_duplicate(dev
, &edid_cea_modes
[cea_mode
]);
2704 newmode
->flags
|= DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF
;
2705 drm_mode_probed_add(connector
, newmode
);
2714 * do_hdmi_vsdb_modes - Parse the HDMI Vendor Specific data block
2715 * @connector: connector corresponding to the HDMI sink
2716 * @db: start of the CEA vendor specific block
2717 * @len: length of the CEA block payload, ie. one can access up to db[len]
2719 * Parses the HDMI VSDB looking for modes to add to @connector. This function
2720 * also adds the stereo 3d modes when applicable.
2723 do_hdmi_vsdb_modes(struct drm_connector
*connector
, const u8
*db
, u8 len
,
2724 const u8
*video_db
, u8 video_len
)
2726 int modes
= 0, offset
= 0, i
, multi_present
= 0;
2727 u8 vic_len
, hdmi_3d_len
= 0;
2734 /* no HDMI_Video_Present */
2735 if (!(db
[8] & (1 << 5)))
2738 /* Latency_Fields_Present */
2739 if (db
[8] & (1 << 7))
2742 /* I_Latency_Fields_Present */
2743 if (db
[8] & (1 << 6))
2746 /* the declared length is not long enough for the 2 first bytes
2747 * of additional video format capabilities */
2748 if (len
< (8 + offset
+ 2))
2753 if (db
[8 + offset
] & (1 << 7)) {
2754 modes
+= add_hdmi_mandatory_stereo_modes(connector
);
2756 /* 3D_Multi_present */
2757 multi_present
= (db
[8 + offset
] & 0x60) >> 5;
2761 vic_len
= db
[8 + offset
] >> 5;
2762 hdmi_3d_len
= db
[8 + offset
] & 0x1f;
2764 for (i
= 0; i
< vic_len
&& len
>= (9 + offset
+ i
); i
++) {
2767 vic
= db
[9 + offset
+ i
];
2768 modes
+= add_hdmi_mode(connector
, vic
);
2770 offset
+= 1 + vic_len
;
2772 if (!(multi_present
== 1 || multi_present
== 2))
2775 if ((multi_present
== 1 && len
< (9 + offset
)) ||
2776 (multi_present
== 2 && len
< (11 + offset
)))
2779 if ((multi_present
== 1 && hdmi_3d_len
< 2) ||
2780 (multi_present
== 2 && hdmi_3d_len
< 4))
2783 /* 3D_Structure_ALL */
2784 structure_all
= (db
[8 + offset
] << 8) | db
[9 + offset
];
2786 /* check if 3D_MASK is present */
2787 if (multi_present
== 2)
2788 mask
= (db
[10 + offset
] << 8) | db
[11 + offset
];
2792 for (i
= 0; i
< 16; i
++) {
2793 if (mask
& (1 << i
))
2794 modes
+= add_3d_struct_modes(connector
,
2805 cea_db_payload_len(const u8
*db
)
2807 return db
[0] & 0x1f;
2811 cea_db_tag(const u8
*db
)
2817 cea_revision(const u8
*cea
)
2823 cea_db_offsets(const u8
*cea
, int *start
, int *end
)
2825 /* Data block offset in CEA extension block */
2830 if (*end
< 4 || *end
> 127)
2835 static bool cea_db_is_hdmi_vsdb(const u8
*db
)
2839 if (cea_db_tag(db
) != VENDOR_BLOCK
)
2842 if (cea_db_payload_len(db
) < 5)
2845 hdmi_id
= db
[1] | (db
[2] << 8) | (db
[3] << 16);
2847 return hdmi_id
== HDMI_IEEE_OUI
;
2850 #define for_each_cea_db(cea, i, start, end) \
2851 for ((i) = (start); (i) < (end) && (i) + cea_db_payload_len(&(cea)[(i)]) < (end); (i) += cea_db_payload_len(&(cea)[(i)]) + 1)
2854 add_cea_modes(struct drm_connector
*connector
, struct edid
*edid
)
2856 const u8
*cea
= drm_find_cea_extension(edid
);
2857 const u8
*db
, *hdmi
= NULL
, *video
= NULL
;
2858 u8 dbl
, hdmi_len
, video_len
= 0;
2861 if (cea
&& cea_revision(cea
) >= 3) {
2864 if (cea_db_offsets(cea
, &start
, &end
))
2867 for_each_cea_db(cea
, i
, start
, end
) {
2869 dbl
= cea_db_payload_len(db
);
2871 if (cea_db_tag(db
) == VIDEO_BLOCK
) {
2874 modes
+= do_cea_modes(connector
, video
, dbl
);
2876 else if (cea_db_is_hdmi_vsdb(db
)) {
2884 * We parse the HDMI VSDB after having added the cea modes as we will
2885 * be patching their flags when the sink supports stereo 3D.
2888 modes
+= do_hdmi_vsdb_modes(connector
, hdmi
, hdmi_len
, video
,
2895 parse_hdmi_vsdb(struct drm_connector
*connector
, const u8
*db
)
2897 u8 len
= cea_db_payload_len(db
);
2900 connector
->eld
[5] |= (db
[6] >> 7) << 1; /* Supports_AI */
2901 connector
->dvi_dual
= db
[6] & 1;
2904 connector
->max_tmds_clock
= db
[7] * 5;
2906 connector
->latency_present
[0] = db
[8] >> 7;
2907 connector
->latency_present
[1] = (db
[8] >> 6) & 1;
2910 connector
->video_latency
[0] = db
[9];
2912 connector
->audio_latency
[0] = db
[10];
2914 connector
->video_latency
[1] = db
[11];
2916 connector
->audio_latency
[1] = db
[12];
2918 DRM_DEBUG_KMS("HDMI: DVI dual %d, "
2919 "max TMDS clock %d, "
2920 "latency present %d %d, "
2921 "video latency %d %d, "
2922 "audio latency %d %d\n",
2923 connector
->dvi_dual
,
2924 connector
->max_tmds_clock
,
2925 (int) connector
->latency_present
[0],
2926 (int) connector
->latency_present
[1],
2927 connector
->video_latency
[0],
2928 connector
->video_latency
[1],
2929 connector
->audio_latency
[0],
2930 connector
->audio_latency
[1]);
2934 monitor_name(struct detailed_timing
*t
, void *data
)
2936 if (t
->data
.other_data
.type
== EDID_DETAIL_MONITOR_NAME
)
2937 *(u8
**)data
= t
->data
.other_data
.data
.str
.str
;
2941 * drm_edid_to_eld - build ELD from EDID
2942 * @connector: connector corresponding to the HDMI/DP sink
2943 * @edid: EDID to parse
2945 * Fill the ELD (EDID-Like Data) buffer for passing to the audio driver.
2946 * Some ELD fields are left to the graphics driver caller:
2951 void drm_edid_to_eld(struct drm_connector
*connector
, struct edid
*edid
)
2953 uint8_t *eld
= connector
->eld
;
2961 memset(eld
, 0, sizeof(connector
->eld
));
2963 cea
= drm_find_cea_extension(edid
);
2965 DRM_DEBUG_KMS("ELD: no CEA Extension found\n");
2970 drm_for_each_detailed_block((u8
*)edid
, monitor_name
, &name
);
2971 for (mnl
= 0; name
&& mnl
< 13; mnl
++) {
2972 if (name
[mnl
] == 0x0a)
2974 eld
[20 + mnl
] = name
[mnl
];
2976 eld
[4] = (cea
[1] << 5) | mnl
;
2977 DRM_DEBUG_KMS("ELD monitor %s\n", eld
+ 20);
2979 eld
[0] = 2 << 3; /* ELD version: 2 */
2981 eld
[16] = edid
->mfg_id
[0];
2982 eld
[17] = edid
->mfg_id
[1];
2983 eld
[18] = edid
->prod_code
[0];
2984 eld
[19] = edid
->prod_code
[1];
2986 if (cea_revision(cea
) >= 3) {
2989 if (cea_db_offsets(cea
, &start
, &end
)) {
2994 for_each_cea_db(cea
, i
, start
, end
) {
2996 dbl
= cea_db_payload_len(db
);
2998 switch (cea_db_tag(db
)) {
3000 /* Audio Data Block, contains SADs */
3001 sad_count
= dbl
/ 3;
3003 memcpy(eld
+ 20 + mnl
, &db
[1], dbl
);
3006 /* Speaker Allocation Data Block */
3011 /* HDMI Vendor-Specific Data Block */
3012 if (cea_db_is_hdmi_vsdb(db
))
3013 parse_hdmi_vsdb(connector
, db
);
3020 eld
[5] |= sad_count
<< 4;
3021 eld
[2] = (20 + mnl
+ sad_count
* 3 + 3) / 4;
3023 DRM_DEBUG_KMS("ELD size %d, SAD count %d\n", (int)eld
[2], sad_count
);
3025 EXPORT_SYMBOL(drm_edid_to_eld
);
3028 * drm_edid_to_sad - extracts SADs from EDID
3029 * @edid: EDID to parse
3030 * @sads: pointer that will be set to the extracted SADs
3032 * Looks for CEA EDID block and extracts SADs (Short Audio Descriptors) from it.
3033 * Note: returned pointer needs to be kfreed
3035 * Return number of found SADs or negative number on error.
3037 int drm_edid_to_sad(struct edid
*edid
, struct cea_sad
**sads
)
3040 int i
, start
, end
, dbl
;
3043 cea
= drm_find_cea_extension(edid
);
3045 DRM_DEBUG_KMS("SAD: no CEA Extension found\n");
3049 if (cea_revision(cea
) < 3) {
3050 DRM_DEBUG_KMS("SAD: wrong CEA revision\n");
3054 if (cea_db_offsets(cea
, &start
, &end
)) {
3055 DRM_DEBUG_KMS("SAD: invalid data block offsets\n");
3059 for_each_cea_db(cea
, i
, start
, end
) {
3062 if (cea_db_tag(db
) == AUDIO_BLOCK
) {
3064 dbl
= cea_db_payload_len(db
);
3066 count
= dbl
/ 3; /* SAD is 3B */
3067 *sads
= kcalloc(count
, sizeof(**sads
), GFP_KERNEL
);
3070 for (j
= 0; j
< count
; j
++) {
3071 u8
*sad
= &db
[1 + j
* 3];
3073 (*sads
)[j
].format
= (sad
[0] & 0x78) >> 3;
3074 (*sads
)[j
].channels
= sad
[0] & 0x7;
3075 (*sads
)[j
].freq
= sad
[1] & 0x7F;
3076 (*sads
)[j
].byte2
= sad
[2];
3084 EXPORT_SYMBOL(drm_edid_to_sad
);
3087 * drm_edid_to_speaker_allocation - extracts Speaker Allocation Data Blocks from EDID
3088 * @edid: EDID to parse
3089 * @sadb: pointer to the speaker block
3091 * Looks for CEA EDID block and extracts the Speaker Allocation Data Block from it.
3092 * Note: returned pointer needs to be kfreed
3094 * Return number of found Speaker Allocation Blocks or negative number on error.
3096 int drm_edid_to_speaker_allocation(struct edid
*edid
, u8
**sadb
)
3099 int i
, start
, end
, dbl
;
3102 cea
= drm_find_cea_extension(edid
);
3104 DRM_DEBUG_KMS("SAD: no CEA Extension found\n");
3108 if (cea_revision(cea
) < 3) {
3109 DRM_DEBUG_KMS("SAD: wrong CEA revision\n");
3113 if (cea_db_offsets(cea
, &start
, &end
)) {
3114 DRM_DEBUG_KMS("SAD: invalid data block offsets\n");
3118 for_each_cea_db(cea
, i
, start
, end
) {
3119 const u8
*db
= &cea
[i
];
3121 if (cea_db_tag(db
) == SPEAKER_BLOCK
) {
3122 dbl
= cea_db_payload_len(db
);
3124 /* Speaker Allocation Data Block */
3126 *sadb
= kmalloc(dbl
, GFP_KERNEL
);
3129 memcpy(*sadb
, &db
[1], dbl
);
3138 EXPORT_SYMBOL(drm_edid_to_speaker_allocation
);
3141 * drm_av_sync_delay - HDMI/DP sink audio-video sync delay in millisecond
3142 * @connector: connector associated with the HDMI/DP sink
3143 * @mode: the display mode
3145 int drm_av_sync_delay(struct drm_connector
*connector
,
3146 struct drm_display_mode
*mode
)
3148 int i
= !!(mode
->flags
& DRM_MODE_FLAG_INTERLACE
);
3151 if (!connector
->latency_present
[0])
3153 if (!connector
->latency_present
[1])
3156 a
= connector
->audio_latency
[i
];
3157 v
= connector
->video_latency
[i
];
3160 * HDMI/DP sink doesn't support audio or video?
3162 if (a
== 255 || v
== 255)
3166 * Convert raw EDID values to millisecond.
3167 * Treat unknown latency as 0ms.
3170 a
= min(2 * (a
- 1), 500);
3172 v
= min(2 * (v
- 1), 500);
3174 return max(v
- a
, 0);
3176 EXPORT_SYMBOL(drm_av_sync_delay
);
3179 * drm_select_eld - select one ELD from multiple HDMI/DP sinks
3180 * @encoder: the encoder just changed display mode
3181 * @mode: the adjusted display mode
3183 * It's possible for one encoder to be associated with multiple HDMI/DP sinks.
3184 * The policy is now hard coded to simply use the first HDMI/DP sink's ELD.
3186 struct drm_connector
*drm_select_eld(struct drm_encoder
*encoder
,
3187 struct drm_display_mode
*mode
)
3189 struct drm_connector
*connector
;
3190 struct drm_device
*dev
= encoder
->dev
;
3192 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
)
3193 if (connector
->encoder
== encoder
&& connector
->eld
[0])
3198 EXPORT_SYMBOL(drm_select_eld
);
3201 * drm_detect_hdmi_monitor - detect whether monitor is hdmi.
3202 * @edid: monitor EDID information
3204 * Parse the CEA extension according to CEA-861-B.
3205 * Return true if HDMI, false if not or unknown.
3207 bool drm_detect_hdmi_monitor(struct edid
*edid
)
3211 int start_offset
, end_offset
;
3213 edid_ext
= drm_find_cea_extension(edid
);
3217 if (cea_db_offsets(edid_ext
, &start_offset
, &end_offset
))
3221 * Because HDMI identifier is in Vendor Specific Block,
3222 * search it from all data blocks of CEA extension.
3224 for_each_cea_db(edid_ext
, i
, start_offset
, end_offset
) {
3225 if (cea_db_is_hdmi_vsdb(&edid_ext
[i
]))
3231 EXPORT_SYMBOL(drm_detect_hdmi_monitor
);
3234 * drm_detect_monitor_audio - check monitor audio capability
3236 * Monitor should have CEA extension block.
3237 * If monitor has 'basic audio', but no CEA audio blocks, it's 'basic
3238 * audio' only. If there is any audio extension block and supported
3239 * audio format, assume at least 'basic audio' support, even if 'basic
3240 * audio' is not defined in EDID.
3243 bool drm_detect_monitor_audio(struct edid
*edid
)
3247 bool has_audio
= false;
3248 int start_offset
, end_offset
;
3250 edid_ext
= drm_find_cea_extension(edid
);
3254 has_audio
= ((edid_ext
[3] & EDID_BASIC_AUDIO
) != 0);
3257 DRM_DEBUG_KMS("Monitor has basic audio support\n");
3261 if (cea_db_offsets(edid_ext
, &start_offset
, &end_offset
))
3264 for_each_cea_db(edid_ext
, i
, start_offset
, end_offset
) {
3265 if (cea_db_tag(&edid_ext
[i
]) == AUDIO_BLOCK
) {
3267 for (j
= 1; j
< cea_db_payload_len(&edid_ext
[i
]) + 1; j
+= 3)
3268 DRM_DEBUG_KMS("CEA audio format %d\n",
3269 (edid_ext
[i
+ j
] >> 3) & 0xf);
3276 EXPORT_SYMBOL(drm_detect_monitor_audio
);
3279 * drm_rgb_quant_range_selectable - is RGB quantization range selectable?
3281 * Check whether the monitor reports the RGB quantization range selection
3282 * as supported. The AVI infoframe can then be used to inform the monitor
3283 * which quantization range (full or limited) is used.
3285 bool drm_rgb_quant_range_selectable(struct edid
*edid
)
3290 edid_ext
= drm_find_cea_extension(edid
);
3294 if (cea_db_offsets(edid_ext
, &start
, &end
))
3297 for_each_cea_db(edid_ext
, i
, start
, end
) {
3298 if (cea_db_tag(&edid_ext
[i
]) == VIDEO_CAPABILITY_BLOCK
&&
3299 cea_db_payload_len(&edid_ext
[i
]) == 2) {
3300 DRM_DEBUG_KMS("CEA VCDB 0x%02x\n", edid_ext
[i
+ 2]);
3301 return edid_ext
[i
+ 2] & EDID_CEA_VCDB_QS
;
3307 EXPORT_SYMBOL(drm_rgb_quant_range_selectable
);
3310 * drm_add_display_info - pull display info out if present
3312 * @info: display info (attached to connector)
3314 * Grab any available display info and stuff it into the drm_display_info
3315 * structure that's part of the connector. Useful for tracking bpp and
3318 static void drm_add_display_info(struct edid
*edid
,
3319 struct drm_display_info
*info
)
3323 info
->width_mm
= edid
->width_cm
* 10;
3324 info
->height_mm
= edid
->height_cm
* 10;
3326 /* driver figures it out in this case */
3328 info
->color_formats
= 0;
3330 if (edid
->revision
< 3)
3333 if (!(edid
->input
& DRM_EDID_INPUT_DIGITAL
))
3336 /* Get data from CEA blocks if present */
3337 edid_ext
= drm_find_cea_extension(edid
);
3339 info
->cea_rev
= edid_ext
[1];
3341 /* The existence of a CEA block should imply RGB support */
3342 info
->color_formats
= DRM_COLOR_FORMAT_RGB444
;
3343 if (edid_ext
[3] & EDID_CEA_YCRCB444
)
3344 info
->color_formats
|= DRM_COLOR_FORMAT_YCRCB444
;
3345 if (edid_ext
[3] & EDID_CEA_YCRCB422
)
3346 info
->color_formats
|= DRM_COLOR_FORMAT_YCRCB422
;
3349 /* Only defined for 1.4 with digital displays */
3350 if (edid
->revision
< 4)
3353 switch (edid
->input
& DRM_EDID_DIGITAL_DEPTH_MASK
) {
3354 case DRM_EDID_DIGITAL_DEPTH_6
:
3357 case DRM_EDID_DIGITAL_DEPTH_8
:
3360 case DRM_EDID_DIGITAL_DEPTH_10
:
3363 case DRM_EDID_DIGITAL_DEPTH_12
:
3366 case DRM_EDID_DIGITAL_DEPTH_14
:
3369 case DRM_EDID_DIGITAL_DEPTH_16
:
3372 case DRM_EDID_DIGITAL_DEPTH_UNDEF
:
3378 info
->color_formats
|= DRM_COLOR_FORMAT_RGB444
;
3379 if (edid
->features
& DRM_EDID_FEATURE_RGB_YCRCB444
)
3380 info
->color_formats
|= DRM_COLOR_FORMAT_YCRCB444
;
3381 if (edid
->features
& DRM_EDID_FEATURE_RGB_YCRCB422
)
3382 info
->color_formats
|= DRM_COLOR_FORMAT_YCRCB422
;
3386 * drm_add_edid_modes - add modes from EDID data, if available
3387 * @connector: connector we're probing
3390 * Add the specified modes to the connector's mode list.
3392 * Return number of modes added or 0 if we couldn't find any.
3394 int drm_add_edid_modes(struct drm_connector
*connector
, struct edid
*edid
)
3402 if (!drm_edid_is_valid(edid
)) {
3403 dev_warn(connector
->dev
->dev
, "%s: EDID invalid.\n",
3404 drm_get_connector_name(connector
));
3408 quirks
= edid_get_quirks(edid
);
3411 * EDID spec says modes should be preferred in this order:
3412 * - preferred detailed mode
3413 * - other detailed modes from base block
3414 * - detailed modes from extension blocks
3415 * - CVT 3-byte code modes
3416 * - standard timing codes
3417 * - established timing codes
3418 * - modes inferred from GTF or CVT range information
3420 * We get this pretty much right.
3422 * XXX order for additional mode types in extension blocks?
3424 num_modes
+= add_detailed_modes(connector
, edid
, quirks
);
3425 num_modes
+= add_cvt_modes(connector
, edid
);
3426 num_modes
+= add_standard_modes(connector
, edid
);
3427 num_modes
+= add_established_modes(connector
, edid
);
3428 if (edid
->features
& DRM_EDID_FEATURE_DEFAULT_GTF
)
3429 num_modes
+= add_inferred_modes(connector
, edid
);
3430 num_modes
+= add_cea_modes(connector
, edid
);
3431 num_modes
+= add_alternate_cea_modes(connector
, edid
);
3433 if (quirks
& (EDID_QUIRK_PREFER_LARGE_60
| EDID_QUIRK_PREFER_LARGE_75
))
3434 edid_fixup_preferred(connector
, quirks
);
3436 drm_add_display_info(edid
, &connector
->display_info
);
3440 EXPORT_SYMBOL(drm_add_edid_modes
);
3443 * drm_add_modes_noedid - add modes for the connectors without EDID
3444 * @connector: connector we're probing
3445 * @hdisplay: the horizontal display limit
3446 * @vdisplay: the vertical display limit
3448 * Add the specified modes to the connector's mode list. Only when the
3449 * hdisplay/vdisplay is not beyond the given limit, it will be added.
3451 * Return number of modes added or 0 if we couldn't find any.
3453 int drm_add_modes_noedid(struct drm_connector
*connector
,
3454 int hdisplay
, int vdisplay
)
3456 int i
, count
, num_modes
= 0;
3457 struct drm_display_mode
*mode
;
3458 struct drm_device
*dev
= connector
->dev
;
3460 count
= sizeof(drm_dmt_modes
) / sizeof(struct drm_display_mode
);
3466 for (i
= 0; i
< count
; i
++) {
3467 const struct drm_display_mode
*ptr
= &drm_dmt_modes
[i
];
3468 if (hdisplay
&& vdisplay
) {
3470 * Only when two are valid, they will be used to check
3471 * whether the mode should be added to the mode list of
3474 if (ptr
->hdisplay
> hdisplay
||
3475 ptr
->vdisplay
> vdisplay
)
3478 if (drm_mode_vrefresh(ptr
) > 61)
3480 mode
= drm_mode_duplicate(dev
, ptr
);
3482 drm_mode_probed_add(connector
, mode
);
3488 EXPORT_SYMBOL(drm_add_modes_noedid
);
3490 void drm_set_preferred_mode(struct drm_connector
*connector
,
3491 int hpref
, int vpref
)
3493 struct drm_display_mode
*mode
;
3495 list_for_each_entry(mode
, &connector
->probed_modes
, head
) {
3496 if (drm_mode_width(mode
) == hpref
&&
3497 drm_mode_height(mode
) == vpref
)
3498 mode
->type
|= DRM_MODE_TYPE_PREFERRED
;
3501 EXPORT_SYMBOL(drm_set_preferred_mode
);
3504 * drm_hdmi_avi_infoframe_from_display_mode() - fill an HDMI AVI infoframe with
3505 * data from a DRM display mode
3506 * @frame: HDMI AVI infoframe
3507 * @mode: DRM display mode
3509 * Returns 0 on success or a negative error code on failure.
3512 drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe
*frame
,
3513 const struct drm_display_mode
*mode
)
3517 if (!frame
|| !mode
)
3520 err
= hdmi_avi_infoframe_init(frame
);
3524 if (mode
->flags
& DRM_MODE_FLAG_DBLCLK
)
3525 frame
->pixel_repeat
= 1;
3527 frame
->video_code
= drm_match_cea_mode(mode
);
3529 frame
->picture_aspect
= HDMI_PICTURE_ASPECT_NONE
;
3530 frame
->active_aspect
= HDMI_ACTIVE_ASPECT_PICTURE
;
3534 EXPORT_SYMBOL(drm_hdmi_avi_infoframe_from_display_mode
);
3536 static enum hdmi_3d_structure
3537 s3d_structure_from_display_mode(const struct drm_display_mode
*mode
)
3539 u32 layout
= mode
->flags
& DRM_MODE_FLAG_3D_MASK
;
3542 case DRM_MODE_FLAG_3D_FRAME_PACKING
:
3543 return HDMI_3D_STRUCTURE_FRAME_PACKING
;
3544 case DRM_MODE_FLAG_3D_FIELD_ALTERNATIVE
:
3545 return HDMI_3D_STRUCTURE_FIELD_ALTERNATIVE
;
3546 case DRM_MODE_FLAG_3D_LINE_ALTERNATIVE
:
3547 return HDMI_3D_STRUCTURE_LINE_ALTERNATIVE
;
3548 case DRM_MODE_FLAG_3D_SIDE_BY_SIDE_FULL
:
3549 return HDMI_3D_STRUCTURE_SIDE_BY_SIDE_FULL
;
3550 case DRM_MODE_FLAG_3D_L_DEPTH
:
3551 return HDMI_3D_STRUCTURE_L_DEPTH
;
3552 case DRM_MODE_FLAG_3D_L_DEPTH_GFX_GFX_DEPTH
:
3553 return HDMI_3D_STRUCTURE_L_DEPTH_GFX_GFX_DEPTH
;
3554 case DRM_MODE_FLAG_3D_TOP_AND_BOTTOM
:
3555 return HDMI_3D_STRUCTURE_TOP_AND_BOTTOM
;
3556 case DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF
:
3557 return HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF
;
3559 return HDMI_3D_STRUCTURE_INVALID
;
3564 * drm_hdmi_vendor_infoframe_from_display_mode() - fill an HDMI infoframe with
3565 * data from a DRM display mode
3566 * @frame: HDMI vendor infoframe
3567 * @mode: DRM display mode
3569 * Note that there's is a need to send HDMI vendor infoframes only when using a
3570 * 4k or stereoscopic 3D mode. So when giving any other mode as input this
3571 * function will return -EINVAL, error that can be safely ignored.
3573 * Returns 0 on success or a negative error code on failure.
3576 drm_hdmi_vendor_infoframe_from_display_mode(struct hdmi_vendor_infoframe
*frame
,
3577 const struct drm_display_mode
*mode
)
3583 if (!frame
|| !mode
)
3586 vic
= drm_match_hdmi_mode(mode
);
3587 s3d_flags
= mode
->flags
& DRM_MODE_FLAG_3D_MASK
;
3589 if (!vic
&& !s3d_flags
)
3592 if (vic
&& s3d_flags
)
3595 err
= hdmi_vendor_infoframe_init(frame
);
3602 frame
->s3d_struct
= s3d_structure_from_display_mode(mode
);
3606 EXPORT_SYMBOL(drm_hdmi_vendor_infoframe_from_display_mode
);