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Merge tag 'iwlwifi-next-for-kalle-2015-02-03' of https://git.kernel.org/pub/scm/linux...
[mirror_ubuntu-zesty-kernel.git] / drivers / gpu / drm / drm_edid.c
1 /*
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.
6 *
7 * DDC probing routines (drm_ddc_read & drm_do_probe_ddc_edid) originally from
8 * FB layer.
9 * Copyright (C) 2006 Dennis Munsie <dmunsie@cecropia.com>
10 *
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:
17 *
18 * The above copyright notice and this permission notice (including the
19 * next paragraph) shall be included in all copies or substantial portions
20 * of the Software.
21 *
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.
29 */
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>
35 #include <drm/drmP.h>
36 #include <drm/drm_edid.h>
37 #include <drm/drm_displayid.h>
38
39 #define version_greater(edid, maj, min) \
40 (((edid)->version > (maj)) || \
41 ((edid)->version == (maj) && (edid)->revision > (min)))
42
43 #define EDID_EST_TIMINGS 16
44 #define EDID_STD_TIMINGS 8
45 #define EDID_DETAILED_TIMINGS 4
46
47 /*
48 * EDID blocks out in the wild have a variety of bugs, try to collect
49 * them here (note that userspace may work around broken monitors first,
50 * but fixes should make their way here so that the kernel "just works"
51 * on as many displays as possible).
52 */
53
54 /* First detailed mode wrong, use largest 60Hz mode */
55 #define EDID_QUIRK_PREFER_LARGE_60 (1 << 0)
56 /* Reported 135MHz pixel clock is too high, needs adjustment */
57 #define EDID_QUIRK_135_CLOCK_TOO_HIGH (1 << 1)
58 /* Prefer the largest mode at 75 Hz */
59 #define EDID_QUIRK_PREFER_LARGE_75 (1 << 2)
60 /* Detail timing is in cm not mm */
61 #define EDID_QUIRK_DETAILED_IN_CM (1 << 3)
62 /* Detailed timing descriptors have bogus size values, so just take the
63 * maximum size and use that.
64 */
65 #define EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE (1 << 4)
66 /* Monitor forgot to set the first detailed is preferred bit. */
67 #define EDID_QUIRK_FIRST_DETAILED_PREFERRED (1 << 5)
68 /* use +hsync +vsync for detailed mode */
69 #define EDID_QUIRK_DETAILED_SYNC_PP (1 << 6)
70 /* Force reduced-blanking timings for detailed modes */
71 #define EDID_QUIRK_FORCE_REDUCED_BLANKING (1 << 7)
72 /* Force 8bpc */
73 #define EDID_QUIRK_FORCE_8BPC (1 << 8)
74 /* Force 12bpc */
75 #define EDID_QUIRK_FORCE_12BPC (1 << 9)
76
77 struct detailed_mode_closure {
78 struct drm_connector *connector;
79 struct edid *edid;
80 bool preferred;
81 u32 quirks;
82 int modes;
83 };
84
85 #define LEVEL_DMT 0
86 #define LEVEL_GTF 1
87 #define LEVEL_GTF2 2
88 #define LEVEL_CVT 3
89
90 static struct edid_quirk {
91 char vendor[4];
92 int product_id;
93 u32 quirks;
94 } edid_quirk_list[] = {
95 /* Acer AL1706 */
96 { "ACR", 44358, EDID_QUIRK_PREFER_LARGE_60 },
97 /* Acer F51 */
98 { "API", 0x7602, EDID_QUIRK_PREFER_LARGE_60 },
99 /* Unknown Acer */
100 { "ACR", 2423, EDID_QUIRK_FIRST_DETAILED_PREFERRED },
101
102 /* Belinea 10 15 55 */
103 { "MAX", 1516, EDID_QUIRK_PREFER_LARGE_60 },
104 { "MAX", 0x77e, EDID_QUIRK_PREFER_LARGE_60 },
105
106 /* Envision Peripherals, Inc. EN-7100e */
107 { "EPI", 59264, EDID_QUIRK_135_CLOCK_TOO_HIGH },
108 /* Envision EN2028 */
109 { "EPI", 8232, EDID_QUIRK_PREFER_LARGE_60 },
110
111 /* Funai Electronics PM36B */
112 { "FCM", 13600, EDID_QUIRK_PREFER_LARGE_75 |
113 EDID_QUIRK_DETAILED_IN_CM },
114
115 /* LG Philips LCD LP154W01-A5 */
116 { "LPL", 0, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE },
117 { "LPL", 0x2a00, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE },
118
119 /* Philips 107p5 CRT */
120 { "PHL", 57364, EDID_QUIRK_FIRST_DETAILED_PREFERRED },
121
122 /* Proview AY765C */
123 { "PTS", 765, EDID_QUIRK_FIRST_DETAILED_PREFERRED },
124
125 /* Samsung SyncMaster 205BW. Note: irony */
126 { "SAM", 541, EDID_QUIRK_DETAILED_SYNC_PP },
127 /* Samsung SyncMaster 22[5-6]BW */
128 { "SAM", 596, EDID_QUIRK_PREFER_LARGE_60 },
129 { "SAM", 638, EDID_QUIRK_PREFER_LARGE_60 },
130
131 /* Sony PVM-2541A does up to 12 bpc, but only reports max 8 bpc */
132 { "SNY", 0x2541, EDID_QUIRK_FORCE_12BPC },
133
134 /* ViewSonic VA2026w */
135 { "VSC", 5020, EDID_QUIRK_FORCE_REDUCED_BLANKING },
136
137 /* Medion MD 30217 PG */
138 { "MED", 0x7b8, EDID_QUIRK_PREFER_LARGE_75 },
139
140 /* Panel in Samsung NP700G7A-S01PL notebook reports 6bpc */
141 { "SEC", 0xd033, EDID_QUIRK_FORCE_8BPC },
142 };
143
144 /*
145 * Autogenerated from the DMT spec.
146 * This table is copied from xfree86/modes/xf86EdidModes.c.
147 */
148 static const struct drm_display_mode drm_dmt_modes[] = {
149 /* 640x350@85Hz */
150 { DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER, 31500, 640, 672,
151 736, 832, 0, 350, 382, 385, 445, 0,
152 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
153 /* 640x400@85Hz */
154 { DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER, 31500, 640, 672,
155 736, 832, 0, 400, 401, 404, 445, 0,
156 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
157 /* 720x400@85Hz */
158 { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 756,
159 828, 936, 0, 400, 401, 404, 446, 0,
160 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
161 /* 640x480@60Hz */
162 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
163 752, 800, 0, 480, 489, 492, 525, 0,
164 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
165 /* 640x480@72Hz */
166 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664,
167 704, 832, 0, 480, 489, 492, 520, 0,
168 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
169 /* 640x480@75Hz */
170 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 656,
171 720, 840, 0, 480, 481, 484, 500, 0,
172 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
173 /* 640x480@85Hz */
174 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 36000, 640, 696,
175 752, 832, 0, 480, 481, 484, 509, 0,
176 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
177 /* 800x600@56Hz */
178 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 36000, 800, 824,
179 896, 1024, 0, 600, 601, 603, 625, 0,
180 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
181 /* 800x600@60Hz */
182 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
183 968, 1056, 0, 600, 601, 605, 628, 0,
184 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
185 /* 800x600@72Hz */
186 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 50000, 800, 856,
187 976, 1040, 0, 600, 637, 643, 666, 0,
188 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
189 /* 800x600@75Hz */
190 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 49500, 800, 816,
191 896, 1056, 0, 600, 601, 604, 625, 0,
192 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
193 /* 800x600@85Hz */
194 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 56250, 800, 832,
195 896, 1048, 0, 600, 601, 604, 631, 0,
196 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
197 /* 800x600@120Hz RB */
198 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 73250, 800, 848,
199 880, 960, 0, 600, 603, 607, 636, 0,
200 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
201 /* 848x480@60Hz */
202 { DRM_MODE("848x480", DRM_MODE_TYPE_DRIVER, 33750, 848, 864,
203 976, 1088, 0, 480, 486, 494, 517, 0,
204 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
205 /* 1024x768@43Hz, interlace */
206 { DRM_MODE("1024x768i", DRM_MODE_TYPE_DRIVER, 44900, 1024, 1032,
207 1208, 1264, 0, 768, 768, 772, 817, 0,
208 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
209 DRM_MODE_FLAG_INTERLACE) },
210 /* 1024x768@60Hz */
211 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
212 1184, 1344, 0, 768, 771, 777, 806, 0,
213 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
214 /* 1024x768@70Hz */
215 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 75000, 1024, 1048,
216 1184, 1328, 0, 768, 771, 777, 806, 0,
217 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
218 /* 1024x768@75Hz */
219 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78750, 1024, 1040,
220 1136, 1312, 0, 768, 769, 772, 800, 0,
221 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
222 /* 1024x768@85Hz */
223 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 94500, 1024, 1072,
224 1168, 1376, 0, 768, 769, 772, 808, 0,
225 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
226 /* 1024x768@120Hz RB */
227 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 115500, 1024, 1072,
228 1104, 1184, 0, 768, 771, 775, 813, 0,
229 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
230 /* 1152x864@75Hz */
231 { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
232 1344, 1600, 0, 864, 865, 868, 900, 0,
233 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
234 /* 1280x768@60Hz RB */
235 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 68250, 1280, 1328,
236 1360, 1440, 0, 768, 771, 778, 790, 0,
237 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
238 /* 1280x768@60Hz */
239 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
240 1472, 1664, 0, 768, 771, 778, 798, 0,
241 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
242 /* 1280x768@75Hz */
243 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 102250, 1280, 1360,
244 1488, 1696, 0, 768, 771, 778, 805, 0,
245 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
246 /* 1280x768@85Hz */
247 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 117500, 1280, 1360,
248 1496, 1712, 0, 768, 771, 778, 809, 0,
249 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
250 /* 1280x768@120Hz RB */
251 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 140250, 1280, 1328,
252 1360, 1440, 0, 768, 771, 778, 813, 0,
253 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
254 /* 1280x800@60Hz RB */
255 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 71000, 1280, 1328,
256 1360, 1440, 0, 800, 803, 809, 823, 0,
257 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
258 /* 1280x800@60Hz */
259 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
260 1480, 1680, 0, 800, 803, 809, 831, 0,
261 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
262 /* 1280x800@75Hz */
263 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 106500, 1280, 1360,
264 1488, 1696, 0, 800, 803, 809, 838, 0,
265 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
266 /* 1280x800@85Hz */
267 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 122500, 1280, 1360,
268 1496, 1712, 0, 800, 803, 809, 843, 0,
269 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
270 /* 1280x800@120Hz RB */
271 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 146250, 1280, 1328,
272 1360, 1440, 0, 800, 803, 809, 847, 0,
273 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
274 /* 1280x960@60Hz */
275 { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
276 1488, 1800, 0, 960, 961, 964, 1000, 0,
277 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
278 /* 1280x960@85Hz */
279 { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1344,
280 1504, 1728, 0, 960, 961, 964, 1011, 0,
281 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
282 /* 1280x960@120Hz RB */
283 { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 175500, 1280, 1328,
284 1360, 1440, 0, 960, 963, 967, 1017, 0,
285 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
286 /* 1280x1024@60Hz */
287 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
288 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
289 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
290 /* 1280x1024@75Hz */
291 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 135000, 1280, 1296,
292 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
293 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
294 /* 1280x1024@85Hz */
295 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 157500, 1280, 1344,
296 1504, 1728, 0, 1024, 1025, 1028, 1072, 0,
297 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
298 /* 1280x1024@120Hz RB */
299 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 187250, 1280, 1328,
300 1360, 1440, 0, 1024, 1027, 1034, 1084, 0,
301 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
302 /* 1360x768@60Hz */
303 { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
304 1536, 1792, 0, 768, 771, 777, 795, 0,
305 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
306 /* 1360x768@120Hz RB */
307 { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 148250, 1360, 1408,
308 1440, 1520, 0, 768, 771, 776, 813, 0,
309 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
310 /* 1400x1050@60Hz RB */
311 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 101000, 1400, 1448,
312 1480, 1560, 0, 1050, 1053, 1057, 1080, 0,
313 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
314 /* 1400x1050@60Hz */
315 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
316 1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
317 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
318 /* 1400x1050@75Hz */
319 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 156000, 1400, 1504,
320 1648, 1896, 0, 1050, 1053, 1057, 1099, 0,
321 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
322 /* 1400x1050@85Hz */
323 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 179500, 1400, 1504,
324 1656, 1912, 0, 1050, 1053, 1057, 1105, 0,
325 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
326 /* 1400x1050@120Hz RB */
327 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 208000, 1400, 1448,
328 1480, 1560, 0, 1050, 1053, 1057, 1112, 0,
329 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
330 /* 1440x900@60Hz RB */
331 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 88750, 1440, 1488,
332 1520, 1600, 0, 900, 903, 909, 926, 0,
333 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
334 /* 1440x900@60Hz */
335 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
336 1672, 1904, 0, 900, 903, 909, 934, 0,
337 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
338 /* 1440x900@75Hz */
339 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 136750, 1440, 1536,
340 1688, 1936, 0, 900, 903, 909, 942, 0,
341 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
342 /* 1440x900@85Hz */
343 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 157000, 1440, 1544,
344 1696, 1952, 0, 900, 903, 909, 948, 0,
345 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
346 /* 1440x900@120Hz RB */
347 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 182750, 1440, 1488,
348 1520, 1600, 0, 900, 903, 909, 953, 0,
349 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
350 /* 1600x1200@60Hz */
351 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
352 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
353 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
354 /* 1600x1200@65Hz */
355 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 175500, 1600, 1664,
356 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
357 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
358 /* 1600x1200@70Hz */
359 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 189000, 1600, 1664,
360 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
361 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
362 /* 1600x1200@75Hz */
363 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 202500, 1600, 1664,
364 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
365 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
366 /* 1600x1200@85Hz */
367 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 229500, 1600, 1664,
368 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
369 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
370 /* 1600x1200@120Hz RB */
371 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 268250, 1600, 1648,
372 1680, 1760, 0, 1200, 1203, 1207, 1271, 0,
373 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
374 /* 1680x1050@60Hz RB */
375 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 119000, 1680, 1728,
376 1760, 1840, 0, 1050, 1053, 1059, 1080, 0,
377 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
378 /* 1680x1050@60Hz */
379 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
380 1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
381 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
382 /* 1680x1050@75Hz */
383 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 187000, 1680, 1800,
384 1976, 2272, 0, 1050, 1053, 1059, 1099, 0,
385 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
386 /* 1680x1050@85Hz */
387 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 214750, 1680, 1808,
388 1984, 2288, 0, 1050, 1053, 1059, 1105, 0,
389 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
390 /* 1680x1050@120Hz RB */
391 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 245500, 1680, 1728,
392 1760, 1840, 0, 1050, 1053, 1059, 1112, 0,
393 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
394 /* 1792x1344@60Hz */
395 { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
396 2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
397 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
398 /* 1792x1344@75Hz */
399 { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 261000, 1792, 1888,
400 2104, 2456, 0, 1344, 1345, 1348, 1417, 0,
401 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
402 /* 1792x1344@120Hz RB */
403 { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 333250, 1792, 1840,
404 1872, 1952, 0, 1344, 1347, 1351, 1423, 0,
405 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
406 /* 1856x1392@60Hz */
407 { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
408 2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
409 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
410 /* 1856x1392@75Hz */
411 { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 288000, 1856, 1984,
412 2208, 2560, 0, 1392, 1395, 1399, 1500, 0,
413 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
414 /* 1856x1392@120Hz RB */
415 { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 356500, 1856, 1904,
416 1936, 2016, 0, 1392, 1395, 1399, 1474, 0,
417 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
418 /* 1920x1200@60Hz RB */
419 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 154000, 1920, 1968,
420 2000, 2080, 0, 1200, 1203, 1209, 1235, 0,
421 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
422 /* 1920x1200@60Hz */
423 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
424 2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
425 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
426 /* 1920x1200@75Hz */
427 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 245250, 1920, 2056,
428 2264, 2608, 0, 1200, 1203, 1209, 1255, 0,
429 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
430 /* 1920x1200@85Hz */
431 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 281250, 1920, 2064,
432 2272, 2624, 0, 1200, 1203, 1209, 1262, 0,
433 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
434 /* 1920x1200@120Hz RB */
435 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 317000, 1920, 1968,
436 2000, 2080, 0, 1200, 1203, 1209, 1271, 0,
437 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
438 /* 1920x1440@60Hz */
439 { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
440 2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
441 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
442 /* 1920x1440@75Hz */
443 { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2064,
444 2288, 2640, 0, 1440, 1441, 1444, 1500, 0,
445 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
446 /* 1920x1440@120Hz RB */
447 { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 380500, 1920, 1968,
448 2000, 2080, 0, 1440, 1443, 1447, 1525, 0,
449 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
450 /* 2560x1600@60Hz RB */
451 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 268500, 2560, 2608,
452 2640, 2720, 0, 1600, 1603, 1609, 1646, 0,
453 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
454 /* 2560x1600@60Hz */
455 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
456 3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
457 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
458 /* 2560x1600@75HZ */
459 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 443250, 2560, 2768,
460 3048, 3536, 0, 1600, 1603, 1609, 1672, 0,
461 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
462 /* 2560x1600@85HZ */
463 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 505250, 2560, 2768,
464 3048, 3536, 0, 1600, 1603, 1609, 1682, 0,
465 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
466 /* 2560x1600@120Hz RB */
467 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 552750, 2560, 2608,
468 2640, 2720, 0, 1600, 1603, 1609, 1694, 0,
469 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
470 };
471
472 /*
473 * These more or less come from the DMT spec. The 720x400 modes are
474 * inferred from historical 80x25 practice. The 640x480@67 and 832x624@75
475 * modes are old-school Mac modes. The EDID spec says the 1152x864@75 mode
476 * should be 1152x870, again for the Mac, but instead we use the x864 DMT
477 * mode.
478 *
479 * The DMT modes have been fact-checked; the rest are mild guesses.
480 */
481 static const struct drm_display_mode edid_est_modes[] = {
482 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
483 968, 1056, 0, 600, 601, 605, 628, 0,
484 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@60Hz */
485 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 36000, 800, 824,
486 896, 1024, 0, 600, 601, 603, 625, 0,
487 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@56Hz */
488 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 656,
489 720, 840, 0, 480, 481, 484, 500, 0,
490 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@75Hz */
491 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664,
492 704, 832, 0, 480, 489, 491, 520, 0,
493 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@72Hz */
494 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 30240, 640, 704,
495 768, 864, 0, 480, 483, 486, 525, 0,
496 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@67Hz */
497 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25200, 640, 656,
498 752, 800, 0, 480, 490, 492, 525, 0,
499 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@60Hz */
500 { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 738,
501 846, 900, 0, 400, 421, 423, 449, 0,
502 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 720x400@88Hz */
503 { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 28320, 720, 738,
504 846, 900, 0, 400, 412, 414, 449, 0,
505 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 720x400@70Hz */
506 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 135000, 1280, 1296,
507 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
508 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1280x1024@75Hz */
509 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78800, 1024, 1040,
510 1136, 1312, 0, 768, 769, 772, 800, 0,
511 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1024x768@75Hz */
512 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 75000, 1024, 1048,
513 1184, 1328, 0, 768, 771, 777, 806, 0,
514 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1024x768@70Hz */
515 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
516 1184, 1344, 0, 768, 771, 777, 806, 0,
517 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1024x768@60Hz */
518 { DRM_MODE("1024x768i", DRM_MODE_TYPE_DRIVER,44900, 1024, 1032,
519 1208, 1264, 0, 768, 768, 776, 817, 0,
520 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_INTERLACE) }, /* 1024x768@43Hz */
521 { DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 57284, 832, 864,
522 928, 1152, 0, 624, 625, 628, 667, 0,
523 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 832x624@75Hz */
524 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 49500, 800, 816,
525 896, 1056, 0, 600, 601, 604, 625, 0,
526 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@75Hz */
527 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 50000, 800, 856,
528 976, 1040, 0, 600, 637, 643, 666, 0,
529 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@72Hz */
530 { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
531 1344, 1600, 0, 864, 865, 868, 900, 0,
532 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1152x864@75Hz */
533 };
534
535 struct minimode {
536 short w;
537 short h;
538 short r;
539 short rb;
540 };
541
542 static const struct minimode est3_modes[] = {
543 /* byte 6 */
544 { 640, 350, 85, 0 },
545 { 640, 400, 85, 0 },
546 { 720, 400, 85, 0 },
547 { 640, 480, 85, 0 },
548 { 848, 480, 60, 0 },
549 { 800, 600, 85, 0 },
550 { 1024, 768, 85, 0 },
551 { 1152, 864, 75, 0 },
552 /* byte 7 */
553 { 1280, 768, 60, 1 },
554 { 1280, 768, 60, 0 },
555 { 1280, 768, 75, 0 },
556 { 1280, 768, 85, 0 },
557 { 1280, 960, 60, 0 },
558 { 1280, 960, 85, 0 },
559 { 1280, 1024, 60, 0 },
560 { 1280, 1024, 85, 0 },
561 /* byte 8 */
562 { 1360, 768, 60, 0 },
563 { 1440, 900, 60, 1 },
564 { 1440, 900, 60, 0 },
565 { 1440, 900, 75, 0 },
566 { 1440, 900, 85, 0 },
567 { 1400, 1050, 60, 1 },
568 { 1400, 1050, 60, 0 },
569 { 1400, 1050, 75, 0 },
570 /* byte 9 */
571 { 1400, 1050, 85, 0 },
572 { 1680, 1050, 60, 1 },
573 { 1680, 1050, 60, 0 },
574 { 1680, 1050, 75, 0 },
575 { 1680, 1050, 85, 0 },
576 { 1600, 1200, 60, 0 },
577 { 1600, 1200, 65, 0 },
578 { 1600, 1200, 70, 0 },
579 /* byte 10 */
580 { 1600, 1200, 75, 0 },
581 { 1600, 1200, 85, 0 },
582 { 1792, 1344, 60, 0 },
583 { 1792, 1344, 75, 0 },
584 { 1856, 1392, 60, 0 },
585 { 1856, 1392, 75, 0 },
586 { 1920, 1200, 60, 1 },
587 { 1920, 1200, 60, 0 },
588 /* byte 11 */
589 { 1920, 1200, 75, 0 },
590 { 1920, 1200, 85, 0 },
591 { 1920, 1440, 60, 0 },
592 { 1920, 1440, 75, 0 },
593 };
594
595 static const struct minimode extra_modes[] = {
596 { 1024, 576, 60, 0 },
597 { 1366, 768, 60, 0 },
598 { 1600, 900, 60, 0 },
599 { 1680, 945, 60, 0 },
600 { 1920, 1080, 60, 0 },
601 { 2048, 1152, 60, 0 },
602 { 2048, 1536, 60, 0 },
603 };
604
605 /*
606 * Probably taken from CEA-861 spec.
607 * This table is converted from xorg's hw/xfree86/modes/xf86EdidModes.c.
608 */
609 static const struct drm_display_mode edid_cea_modes[] = {
610 /* 1 - 640x480@60Hz */
611 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
612 752, 800, 0, 480, 490, 492, 525, 0,
613 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
614 .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
615 /* 2 - 720x480@60Hz */
616 { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 27000, 720, 736,
617 798, 858, 0, 480, 489, 495, 525, 0,
618 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
619 .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
620 /* 3 - 720x480@60Hz */
621 { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 27000, 720, 736,
622 798, 858, 0, 480, 489, 495, 525, 0,
623 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
624 .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
625 /* 4 - 1280x720@60Hz */
626 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1390,
627 1430, 1650, 0, 720, 725, 730, 750, 0,
628 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
629 .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
630 /* 5 - 1920x1080i@60Hz */
631 { DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2008,
632 2052, 2200, 0, 1080, 1084, 1094, 1125, 0,
633 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
634 DRM_MODE_FLAG_INTERLACE),
635 .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
636 /* 6 - 720(1440)x480i@60Hz */
637 { DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 13500, 720, 739,
638 801, 858, 0, 480, 488, 494, 525, 0,
639 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
640 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
641 .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
642 /* 7 - 720(1440)x480i@60Hz */
643 { DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 13500, 720, 739,
644 801, 858, 0, 480, 488, 494, 525, 0,
645 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
646 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
647 .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
648 /* 8 - 720(1440)x240@60Hz */
649 { DRM_MODE("720x240", DRM_MODE_TYPE_DRIVER, 13500, 720, 739,
650 801, 858, 0, 240, 244, 247, 262, 0,
651 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
652 DRM_MODE_FLAG_DBLCLK),
653 .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
654 /* 9 - 720(1440)x240@60Hz */
655 { DRM_MODE("720x240", DRM_MODE_TYPE_DRIVER, 13500, 720, 739,
656 801, 858, 0, 240, 244, 247, 262, 0,
657 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
658 DRM_MODE_FLAG_DBLCLK),
659 .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
660 /* 10 - 2880x480i@60Hz */
661 { DRM_MODE("2880x480i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
662 3204, 3432, 0, 480, 488, 494, 525, 0,
663 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
664 DRM_MODE_FLAG_INTERLACE),
665 .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
666 /* 11 - 2880x480i@60Hz */
667 { DRM_MODE("2880x480i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
668 3204, 3432, 0, 480, 488, 494, 525, 0,
669 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
670 DRM_MODE_FLAG_INTERLACE),
671 .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
672 /* 12 - 2880x240@60Hz */
673 { DRM_MODE("2880x240", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
674 3204, 3432, 0, 240, 244, 247, 262, 0,
675 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
676 .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
677 /* 13 - 2880x240@60Hz */
678 { DRM_MODE("2880x240", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
679 3204, 3432, 0, 240, 244, 247, 262, 0,
680 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
681 .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
682 /* 14 - 1440x480@60Hz */
683 { DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1472,
684 1596, 1716, 0, 480, 489, 495, 525, 0,
685 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
686 .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
687 /* 15 - 1440x480@60Hz */
688 { DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1472,
689 1596, 1716, 0, 480, 489, 495, 525, 0,
690 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
691 .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
692 /* 16 - 1920x1080@60Hz */
693 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
694 2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
695 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
696 .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
697 /* 17 - 720x576@50Hz */
698 { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
699 796, 864, 0, 576, 581, 586, 625, 0,
700 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
701 .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
702 /* 18 - 720x576@50Hz */
703 { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
704 796, 864, 0, 576, 581, 586, 625, 0,
705 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
706 .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
707 /* 19 - 1280x720@50Hz */
708 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1720,
709 1760, 1980, 0, 720, 725, 730, 750, 0,
710 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
711 .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
712 /* 20 - 1920x1080i@50Hz */
713 { DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2448,
714 2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
715 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
716 DRM_MODE_FLAG_INTERLACE),
717 .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
718 /* 21 - 720(1440)x576i@50Hz */
719 { DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 13500, 720, 732,
720 795, 864, 0, 576, 580, 586, 625, 0,
721 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
722 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
723 .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
724 /* 22 - 720(1440)x576i@50Hz */
725 { DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 13500, 720, 732,
726 795, 864, 0, 576, 580, 586, 625, 0,
727 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
728 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
729 .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
730 /* 23 - 720(1440)x288@50Hz */
731 { DRM_MODE("720x288", DRM_MODE_TYPE_DRIVER, 13500, 720, 732,
732 795, 864, 0, 288, 290, 293, 312, 0,
733 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
734 DRM_MODE_FLAG_DBLCLK),
735 .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
736 /* 24 - 720(1440)x288@50Hz */
737 { DRM_MODE("720x288", DRM_MODE_TYPE_DRIVER, 13500, 720, 732,
738 795, 864, 0, 288, 290, 293, 312, 0,
739 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
740 DRM_MODE_FLAG_DBLCLK),
741 .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
742 /* 25 - 2880x576i@50Hz */
743 { DRM_MODE("2880x576i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
744 3180, 3456, 0, 576, 580, 586, 625, 0,
745 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
746 DRM_MODE_FLAG_INTERLACE),
747 .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
748 /* 26 - 2880x576i@50Hz */
749 { DRM_MODE("2880x576i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
750 3180, 3456, 0, 576, 580, 586, 625, 0,
751 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
752 DRM_MODE_FLAG_INTERLACE),
753 .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
754 /* 27 - 2880x288@50Hz */
755 { DRM_MODE("2880x288", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
756 3180, 3456, 0, 288, 290, 293, 312, 0,
757 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
758 .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
759 /* 28 - 2880x288@50Hz */
760 { DRM_MODE("2880x288", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
761 3180, 3456, 0, 288, 290, 293, 312, 0,
762 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
763 .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
764 /* 29 - 1440x576@50Hz */
765 { DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1464,
766 1592, 1728, 0, 576, 581, 586, 625, 0,
767 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
768 .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
769 /* 30 - 1440x576@50Hz */
770 { DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1464,
771 1592, 1728, 0, 576, 581, 586, 625, 0,
772 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
773 .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
774 /* 31 - 1920x1080@50Hz */
775 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2448,
776 2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
777 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
778 .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
779 /* 32 - 1920x1080@24Hz */
780 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2558,
781 2602, 2750, 0, 1080, 1084, 1089, 1125, 0,
782 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
783 .vrefresh = 24, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
784 /* 33 - 1920x1080@25Hz */
785 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2448,
786 2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
787 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
788 .vrefresh = 25, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
789 /* 34 - 1920x1080@30Hz */
790 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2008,
791 2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
792 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
793 .vrefresh = 30, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
794 /* 35 - 2880x480@60Hz */
795 { DRM_MODE("2880x480", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2944,
796 3192, 3432, 0, 480, 489, 495, 525, 0,
797 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
798 .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
799 /* 36 - 2880x480@60Hz */
800 { DRM_MODE("2880x480", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2944,
801 3192, 3432, 0, 480, 489, 495, 525, 0,
802 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
803 .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
804 /* 37 - 2880x576@50Hz */
805 { DRM_MODE("2880x576", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2928,
806 3184, 3456, 0, 576, 581, 586, 625, 0,
807 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
808 .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
809 /* 38 - 2880x576@50Hz */
810 { DRM_MODE("2880x576", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2928,
811 3184, 3456, 0, 576, 581, 586, 625, 0,
812 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
813 .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
814 /* 39 - 1920x1080i@50Hz */
815 { DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 72000, 1920, 1952,
816 2120, 2304, 0, 1080, 1126, 1136, 1250, 0,
817 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC |
818 DRM_MODE_FLAG_INTERLACE),
819 .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
820 /* 40 - 1920x1080i@100Hz */
821 { DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2448,
822 2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
823 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
824 DRM_MODE_FLAG_INTERLACE),
825 .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
826 /* 41 - 1280x720@100Hz */
827 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1720,
828 1760, 1980, 0, 720, 725, 730, 750, 0,
829 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
830 .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
831 /* 42 - 720x576@100Hz */
832 { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
833 796, 864, 0, 576, 581, 586, 625, 0,
834 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
835 .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
836 /* 43 - 720x576@100Hz */
837 { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
838 796, 864, 0, 576, 581, 586, 625, 0,
839 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
840 .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
841 /* 44 - 720(1440)x576i@100Hz */
842 { DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
843 795, 864, 0, 576, 580, 586, 625, 0,
844 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
845 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
846 .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
847 /* 45 - 720(1440)x576i@100Hz */
848 { DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
849 795, 864, 0, 576, 580, 586, 625, 0,
850 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
851 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
852 .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
853 /* 46 - 1920x1080i@120Hz */
854 { DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
855 2052, 2200, 0, 1080, 1084, 1094, 1125, 0,
856 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
857 DRM_MODE_FLAG_INTERLACE),
858 .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
859 /* 47 - 1280x720@120Hz */
860 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1390,
861 1430, 1650, 0, 720, 725, 730, 750, 0,
862 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
863 .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
864 /* 48 - 720x480@120Hz */
865 { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 54000, 720, 736,
866 798, 858, 0, 480, 489, 495, 525, 0,
867 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
868 .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
869 /* 49 - 720x480@120Hz */
870 { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 54000, 720, 736,
871 798, 858, 0, 480, 489, 495, 525, 0,
872 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
873 .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
874 /* 50 - 720(1440)x480i@120Hz */
875 { DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 27000, 720, 739,
876 801, 858, 0, 480, 488, 494, 525, 0,
877 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
878 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
879 .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
880 /* 51 - 720(1440)x480i@120Hz */
881 { DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 27000, 720, 739,
882 801, 858, 0, 480, 488, 494, 525, 0,
883 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
884 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
885 .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
886 /* 52 - 720x576@200Hz */
887 { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 108000, 720, 732,
888 796, 864, 0, 576, 581, 586, 625, 0,
889 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
890 .vrefresh = 200, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
891 /* 53 - 720x576@200Hz */
892 { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 108000, 720, 732,
893 796, 864, 0, 576, 581, 586, 625, 0,
894 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
895 .vrefresh = 200, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
896 /* 54 - 720(1440)x576i@200Hz */
897 { DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
898 795, 864, 0, 576, 580, 586, 625, 0,
899 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
900 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
901 .vrefresh = 200, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
902 /* 55 - 720(1440)x576i@200Hz */
903 { DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
904 795, 864, 0, 576, 580, 586, 625, 0,
905 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
906 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
907 .vrefresh = 200, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
908 /* 56 - 720x480@240Hz */
909 { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 108000, 720, 736,
910 798, 858, 0, 480, 489, 495, 525, 0,
911 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
912 .vrefresh = 240, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
913 /* 57 - 720x480@240Hz */
914 { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 108000, 720, 736,
915 798, 858, 0, 480, 489, 495, 525, 0,
916 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
917 .vrefresh = 240, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
918 /* 58 - 720(1440)x480i@240 */
919 { DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 54000, 720, 739,
920 801, 858, 0, 480, 488, 494, 525, 0,
921 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
922 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
923 .vrefresh = 240, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
924 /* 59 - 720(1440)x480i@240 */
925 { DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 54000, 720, 739,
926 801, 858, 0, 480, 488, 494, 525, 0,
927 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
928 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
929 .vrefresh = 240, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
930 /* 60 - 1280x720@24Hz */
931 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 59400, 1280, 3040,
932 3080, 3300, 0, 720, 725, 730, 750, 0,
933 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
934 .vrefresh = 24, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
935 /* 61 - 1280x720@25Hz */
936 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3700,
937 3740, 3960, 0, 720, 725, 730, 750, 0,
938 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
939 .vrefresh = 25, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
940 /* 62 - 1280x720@30Hz */
941 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3040,
942 3080, 3300, 0, 720, 725, 730, 750, 0,
943 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
944 .vrefresh = 30, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
945 /* 63 - 1920x1080@120Hz */
946 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2008,
947 2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
948 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
949 .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
950 /* 64 - 1920x1080@100Hz */
951 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2448,
952 2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
953 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
954 .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
955 };
956
957 /*
958 * HDMI 1.4 4k modes.
959 */
960 static const struct drm_display_mode edid_4k_modes[] = {
961 /* 1 - 3840x2160@30Hz */
962 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000,
963 3840, 4016, 4104, 4400, 0,
964 2160, 2168, 2178, 2250, 0,
965 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
966 .vrefresh = 30, },
967 /* 2 - 3840x2160@25Hz */
968 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000,
969 3840, 4896, 4984, 5280, 0,
970 2160, 2168, 2178, 2250, 0,
971 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
972 .vrefresh = 25, },
973 /* 3 - 3840x2160@24Hz */
974 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000,
975 3840, 5116, 5204, 5500, 0,
976 2160, 2168, 2178, 2250, 0,
977 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
978 .vrefresh = 24, },
979 /* 4 - 4096x2160@24Hz (SMPTE) */
980 { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 297000,
981 4096, 5116, 5204, 5500, 0,
982 2160, 2168, 2178, 2250, 0,
983 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
984 .vrefresh = 24, },
985 };
986
987 /*** DDC fetch and block validation ***/
988
989 static const u8 edid_header[] = {
990 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00
991 };
992
993 /**
994 * drm_edid_header_is_valid - sanity check the header of the base EDID block
995 * @raw_edid: pointer to raw base EDID block
996 *
997 * Sanity check the header of the base EDID block.
998 *
999 * Return: 8 if the header is perfect, down to 0 if it's totally wrong.
1000 */
1001 int drm_edid_header_is_valid(const u8 *raw_edid)
1002 {
1003 int i, score = 0;
1004
1005 for (i = 0; i < sizeof(edid_header); i++)
1006 if (raw_edid[i] == edid_header[i])
1007 score++;
1008
1009 return score;
1010 }
1011 EXPORT_SYMBOL(drm_edid_header_is_valid);
1012
1013 static int edid_fixup __read_mostly = 6;
1014 module_param_named(edid_fixup, edid_fixup, int, 0400);
1015 MODULE_PARM_DESC(edid_fixup,
1016 "Minimum number of valid EDID header bytes (0-8, default 6)");
1017
1018 static void drm_get_displayid(struct drm_connector *connector,
1019 struct edid *edid);
1020
1021 static int drm_edid_block_checksum(const u8 *raw_edid)
1022 {
1023 int i;
1024 u8 csum = 0;
1025 for (i = 0; i < EDID_LENGTH; i++)
1026 csum += raw_edid[i];
1027
1028 return csum;
1029 }
1030
1031 static bool drm_edid_is_zero(const u8 *in_edid, int length)
1032 {
1033 if (memchr_inv(in_edid, 0, length))
1034 return false;
1035
1036 return true;
1037 }
1038
1039 /**
1040 * drm_edid_block_valid - Sanity check the EDID block (base or extension)
1041 * @raw_edid: pointer to raw EDID block
1042 * @block: type of block to validate (0 for base, extension otherwise)
1043 * @print_bad_edid: if true, dump bad EDID blocks to the console
1044 *
1045 * Validate a base or extension EDID block and optionally dump bad blocks to
1046 * the console.
1047 *
1048 * Return: True if the block is valid, false otherwise.
1049 */
1050 bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid)
1051 {
1052 u8 csum;
1053 struct edid *edid = (struct edid *)raw_edid;
1054
1055 if (WARN_ON(!raw_edid))
1056 return false;
1057
1058 if (edid_fixup > 8 || edid_fixup < 0)
1059 edid_fixup = 6;
1060
1061 if (block == 0) {
1062 int score = drm_edid_header_is_valid(raw_edid);
1063 if (score == 8) ;
1064 else if (score >= edid_fixup) {
1065 DRM_DEBUG("Fixing EDID header, your hardware may be failing\n");
1066 memcpy(raw_edid, edid_header, sizeof(edid_header));
1067 } else {
1068 goto bad;
1069 }
1070 }
1071
1072 csum = drm_edid_block_checksum(raw_edid);
1073 if (csum) {
1074 if (print_bad_edid) {
1075 DRM_ERROR("EDID checksum is invalid, remainder is %d\n", csum);
1076 }
1077
1078 /* allow CEA to slide through, switches mangle this */
1079 if (raw_edid[0] != 0x02)
1080 goto bad;
1081 }
1082
1083 /* per-block-type checks */
1084 switch (raw_edid[0]) {
1085 case 0: /* base */
1086 if (edid->version != 1) {
1087 DRM_ERROR("EDID has major version %d, instead of 1\n", edid->version);
1088 goto bad;
1089 }
1090
1091 if (edid->revision > 4)
1092 DRM_DEBUG("EDID minor > 4, assuming backward compatibility\n");
1093 break;
1094
1095 default:
1096 break;
1097 }
1098
1099 return true;
1100
1101 bad:
1102 if (print_bad_edid) {
1103 if (drm_edid_is_zero(raw_edid, EDID_LENGTH)) {
1104 printk(KERN_ERR "EDID block is all zeroes\n");
1105 } else {
1106 printk(KERN_ERR "Raw EDID:\n");
1107 print_hex_dump(KERN_ERR, " \t", DUMP_PREFIX_NONE, 16, 1,
1108 raw_edid, EDID_LENGTH, false);
1109 }
1110 }
1111 return false;
1112 }
1113 EXPORT_SYMBOL(drm_edid_block_valid);
1114
1115 /**
1116 * drm_edid_is_valid - sanity check EDID data
1117 * @edid: EDID data
1118 *
1119 * Sanity-check an entire EDID record (including extensions)
1120 *
1121 * Return: True if the EDID data is valid, false otherwise.
1122 */
1123 bool drm_edid_is_valid(struct edid *edid)
1124 {
1125 int i;
1126 u8 *raw = (u8 *)edid;
1127
1128 if (!edid)
1129 return false;
1130
1131 for (i = 0; i <= edid->extensions; i++)
1132 if (!drm_edid_block_valid(raw + i * EDID_LENGTH, i, true))
1133 return false;
1134
1135 return true;
1136 }
1137 EXPORT_SYMBOL(drm_edid_is_valid);
1138
1139 #define DDC_SEGMENT_ADDR 0x30
1140 /**
1141 * drm_do_probe_ddc_edid() - get EDID information via I2C
1142 * @data: I2C device adapter
1143 * @buf: EDID data buffer to be filled
1144 * @block: 128 byte EDID block to start fetching from
1145 * @len: EDID data buffer length to fetch
1146 *
1147 * Try to fetch EDID information by calling I2C driver functions.
1148 *
1149 * Return: 0 on success or -1 on failure.
1150 */
1151 static int
1152 drm_do_probe_ddc_edid(void *data, u8 *buf, unsigned int block, size_t len)
1153 {
1154 struct i2c_adapter *adapter = data;
1155 unsigned char start = block * EDID_LENGTH;
1156 unsigned char segment = block >> 1;
1157 unsigned char xfers = segment ? 3 : 2;
1158 int ret, retries = 5;
1159
1160 /*
1161 * The core I2C driver will automatically retry the transfer if the
1162 * adapter reports EAGAIN. However, we find that bit-banging transfers
1163 * are susceptible to errors under a heavily loaded machine and
1164 * generate spurious NAKs and timeouts. Retrying the transfer
1165 * of the individual block a few times seems to overcome this.
1166 */
1167 do {
1168 struct i2c_msg msgs[] = {
1169 {
1170 .addr = DDC_SEGMENT_ADDR,
1171 .flags = 0,
1172 .len = 1,
1173 .buf = &segment,
1174 }, {
1175 .addr = DDC_ADDR,
1176 .flags = 0,
1177 .len = 1,
1178 .buf = &start,
1179 }, {
1180 .addr = DDC_ADDR,
1181 .flags = I2C_M_RD,
1182 .len = len,
1183 .buf = buf,
1184 }
1185 };
1186
1187 /*
1188 * Avoid sending the segment addr to not upset non-compliant
1189 * DDC monitors.
1190 */
1191 ret = i2c_transfer(adapter, &msgs[3 - xfers], xfers);
1192
1193 if (ret == -ENXIO) {
1194 DRM_DEBUG_KMS("drm: skipping non-existent adapter %s\n",
1195 adapter->name);
1196 break;
1197 }
1198 } while (ret != xfers && --retries);
1199
1200 return ret == xfers ? 0 : -1;
1201 }
1202
1203 /**
1204 * drm_do_get_edid - get EDID data using a custom EDID block read function
1205 * @connector: connector we're probing
1206 * @get_edid_block: EDID block read function
1207 * @data: private data passed to the block read function
1208 *
1209 * When the I2C adapter connected to the DDC bus is hidden behind a device that
1210 * exposes a different interface to read EDID blocks this function can be used
1211 * to get EDID data using a custom block read function.
1212 *
1213 * As in the general case the DDC bus is accessible by the kernel at the I2C
1214 * level, drivers must make all reasonable efforts to expose it as an I2C
1215 * adapter and use drm_get_edid() instead of abusing this function.
1216 *
1217 * Return: Pointer to valid EDID or NULL if we couldn't find any.
1218 */
1219 struct edid *drm_do_get_edid(struct drm_connector *connector,
1220 int (*get_edid_block)(void *data, u8 *buf, unsigned int block,
1221 size_t len),
1222 void *data)
1223 {
1224 int i, j = 0, valid_extensions = 0;
1225 u8 *block, *new;
1226 bool print_bad_edid = !connector->bad_edid_counter || (drm_debug & DRM_UT_KMS);
1227
1228 if ((block = kmalloc(EDID_LENGTH, GFP_KERNEL)) == NULL)
1229 return NULL;
1230
1231 /* base block fetch */
1232 for (i = 0; i < 4; i++) {
1233 if (get_edid_block(data, block, 0, EDID_LENGTH))
1234 goto out;
1235 if (drm_edid_block_valid(block, 0, print_bad_edid))
1236 break;
1237 if (i == 0 && drm_edid_is_zero(block, EDID_LENGTH)) {
1238 connector->null_edid_counter++;
1239 goto carp;
1240 }
1241 }
1242 if (i == 4)
1243 goto carp;
1244
1245 /* if there's no extensions, we're done */
1246 if (block[0x7e] == 0)
1247 return (struct edid *)block;
1248
1249 new = krealloc(block, (block[0x7e] + 1) * EDID_LENGTH, GFP_KERNEL);
1250 if (!new)
1251 goto out;
1252 block = new;
1253
1254 for (j = 1; j <= block[0x7e]; j++) {
1255 for (i = 0; i < 4; i++) {
1256 if (get_edid_block(data,
1257 block + (valid_extensions + 1) * EDID_LENGTH,
1258 j, EDID_LENGTH))
1259 goto out;
1260 if (drm_edid_block_valid(block + (valid_extensions + 1) * EDID_LENGTH, j, print_bad_edid)) {
1261 valid_extensions++;
1262 break;
1263 }
1264 }
1265
1266 if (i == 4 && print_bad_edid) {
1267 dev_warn(connector->dev->dev,
1268 "%s: Ignoring invalid EDID block %d.\n",
1269 connector->name, j);
1270
1271 connector->bad_edid_counter++;
1272 }
1273 }
1274
1275 if (valid_extensions != block[0x7e]) {
1276 block[EDID_LENGTH-1] += block[0x7e] - valid_extensions;
1277 block[0x7e] = valid_extensions;
1278 new = krealloc(block, (valid_extensions + 1) * EDID_LENGTH, GFP_KERNEL);
1279 if (!new)
1280 goto out;
1281 block = new;
1282 }
1283
1284 return (struct edid *)block;
1285
1286 carp:
1287 if (print_bad_edid) {
1288 dev_warn(connector->dev->dev, "%s: EDID block %d invalid.\n",
1289 connector->name, j);
1290 }
1291 connector->bad_edid_counter++;
1292
1293 out:
1294 kfree(block);
1295 return NULL;
1296 }
1297 EXPORT_SYMBOL_GPL(drm_do_get_edid);
1298
1299 /**
1300 * drm_probe_ddc() - probe DDC presence
1301 * @adapter: I2C adapter to probe
1302 *
1303 * Return: True on success, false on failure.
1304 */
1305 bool
1306 drm_probe_ddc(struct i2c_adapter *adapter)
1307 {
1308 unsigned char out;
1309
1310 return (drm_do_probe_ddc_edid(adapter, &out, 0, 1) == 0);
1311 }
1312 EXPORT_SYMBOL(drm_probe_ddc);
1313
1314 /**
1315 * drm_get_edid - get EDID data, if available
1316 * @connector: connector we're probing
1317 * @adapter: I2C adapter to use for DDC
1318 *
1319 * Poke the given I2C channel to grab EDID data if possible. If found,
1320 * attach it to the connector.
1321 *
1322 * Return: Pointer to valid EDID or NULL if we couldn't find any.
1323 */
1324 struct edid *drm_get_edid(struct drm_connector *connector,
1325 struct i2c_adapter *adapter)
1326 {
1327 struct edid *edid;
1328
1329 if (!drm_probe_ddc(adapter))
1330 return NULL;
1331
1332 edid = drm_do_get_edid(connector, drm_do_probe_ddc_edid, adapter);
1333 if (edid)
1334 drm_get_displayid(connector, edid);
1335 return edid;
1336 }
1337 EXPORT_SYMBOL(drm_get_edid);
1338
1339 /**
1340 * drm_edid_duplicate - duplicate an EDID and the extensions
1341 * @edid: EDID to duplicate
1342 *
1343 * Return: Pointer to duplicated EDID or NULL on allocation failure.
1344 */
1345 struct edid *drm_edid_duplicate(const struct edid *edid)
1346 {
1347 return kmemdup(edid, (edid->extensions + 1) * EDID_LENGTH, GFP_KERNEL);
1348 }
1349 EXPORT_SYMBOL(drm_edid_duplicate);
1350
1351 /*** EDID parsing ***/
1352
1353 /**
1354 * edid_vendor - match a string against EDID's obfuscated vendor field
1355 * @edid: EDID to match
1356 * @vendor: vendor string
1357 *
1358 * Returns true if @vendor is in @edid, false otherwise
1359 */
1360 static bool edid_vendor(struct edid *edid, char *vendor)
1361 {
1362 char edid_vendor[3];
1363
1364 edid_vendor[0] = ((edid->mfg_id[0] & 0x7c) >> 2) + '@';
1365 edid_vendor[1] = (((edid->mfg_id[0] & 0x3) << 3) |
1366 ((edid->mfg_id[1] & 0xe0) >> 5)) + '@';
1367 edid_vendor[2] = (edid->mfg_id[1] & 0x1f) + '@';
1368
1369 return !strncmp(edid_vendor, vendor, 3);
1370 }
1371
1372 /**
1373 * edid_get_quirks - return quirk flags for a given EDID
1374 * @edid: EDID to process
1375 *
1376 * This tells subsequent routines what fixes they need to apply.
1377 */
1378 static u32 edid_get_quirks(struct edid *edid)
1379 {
1380 struct edid_quirk *quirk;
1381 int i;
1382
1383 for (i = 0; i < ARRAY_SIZE(edid_quirk_list); i++) {
1384 quirk = &edid_quirk_list[i];
1385
1386 if (edid_vendor(edid, quirk->vendor) &&
1387 (EDID_PRODUCT_ID(edid) == quirk->product_id))
1388 return quirk->quirks;
1389 }
1390
1391 return 0;
1392 }
1393
1394 #define MODE_SIZE(m) ((m)->hdisplay * (m)->vdisplay)
1395 #define MODE_REFRESH_DIFF(c,t) (abs((c) - (t)))
1396
1397 /**
1398 * edid_fixup_preferred - set preferred modes based on quirk list
1399 * @connector: has mode list to fix up
1400 * @quirks: quirks list
1401 *
1402 * Walk the mode list for @connector, clearing the preferred status
1403 * on existing modes and setting it anew for the right mode ala @quirks.
1404 */
1405 static void edid_fixup_preferred(struct drm_connector *connector,
1406 u32 quirks)
1407 {
1408 struct drm_display_mode *t, *cur_mode, *preferred_mode;
1409 int target_refresh = 0;
1410 int cur_vrefresh, preferred_vrefresh;
1411
1412 if (list_empty(&connector->probed_modes))
1413 return;
1414
1415 if (quirks & EDID_QUIRK_PREFER_LARGE_60)
1416 target_refresh = 60;
1417 if (quirks & EDID_QUIRK_PREFER_LARGE_75)
1418 target_refresh = 75;
1419
1420 preferred_mode = list_first_entry(&connector->probed_modes,
1421 struct drm_display_mode, head);
1422
1423 list_for_each_entry_safe(cur_mode, t, &connector->probed_modes, head) {
1424 cur_mode->type &= ~DRM_MODE_TYPE_PREFERRED;
1425
1426 if (cur_mode == preferred_mode)
1427 continue;
1428
1429 /* Largest mode is preferred */
1430 if (MODE_SIZE(cur_mode) > MODE_SIZE(preferred_mode))
1431 preferred_mode = cur_mode;
1432
1433 cur_vrefresh = cur_mode->vrefresh ?
1434 cur_mode->vrefresh : drm_mode_vrefresh(cur_mode);
1435 preferred_vrefresh = preferred_mode->vrefresh ?
1436 preferred_mode->vrefresh : drm_mode_vrefresh(preferred_mode);
1437 /* At a given size, try to get closest to target refresh */
1438 if ((MODE_SIZE(cur_mode) == MODE_SIZE(preferred_mode)) &&
1439 MODE_REFRESH_DIFF(cur_vrefresh, target_refresh) <
1440 MODE_REFRESH_DIFF(preferred_vrefresh, target_refresh)) {
1441 preferred_mode = cur_mode;
1442 }
1443 }
1444
1445 preferred_mode->type |= DRM_MODE_TYPE_PREFERRED;
1446 }
1447
1448 static bool
1449 mode_is_rb(const struct drm_display_mode *mode)
1450 {
1451 return (mode->htotal - mode->hdisplay == 160) &&
1452 (mode->hsync_end - mode->hdisplay == 80) &&
1453 (mode->hsync_end - mode->hsync_start == 32) &&
1454 (mode->vsync_start - mode->vdisplay == 3);
1455 }
1456
1457 /*
1458 * drm_mode_find_dmt - Create a copy of a mode if present in DMT
1459 * @dev: Device to duplicate against
1460 * @hsize: Mode width
1461 * @vsize: Mode height
1462 * @fresh: Mode refresh rate
1463 * @rb: Mode reduced-blanking-ness
1464 *
1465 * Walk the DMT mode list looking for a match for the given parameters.
1466 *
1467 * Return: A newly allocated copy of the mode, or NULL if not found.
1468 */
1469 struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
1470 int hsize, int vsize, int fresh,
1471 bool rb)
1472 {
1473 int i;
1474
1475 for (i = 0; i < ARRAY_SIZE(drm_dmt_modes); i++) {
1476 const struct drm_display_mode *ptr = &drm_dmt_modes[i];
1477 if (hsize != ptr->hdisplay)
1478 continue;
1479 if (vsize != ptr->vdisplay)
1480 continue;
1481 if (fresh != drm_mode_vrefresh(ptr))
1482 continue;
1483 if (rb != mode_is_rb(ptr))
1484 continue;
1485
1486 return drm_mode_duplicate(dev, ptr);
1487 }
1488
1489 return NULL;
1490 }
1491 EXPORT_SYMBOL(drm_mode_find_dmt);
1492
1493 typedef void detailed_cb(struct detailed_timing *timing, void *closure);
1494
1495 static void
1496 cea_for_each_detailed_block(u8 *ext, detailed_cb *cb, void *closure)
1497 {
1498 int i, n = 0;
1499 u8 d = ext[0x02];
1500 u8 *det_base = ext + d;
1501
1502 n = (127 - d) / 18;
1503 for (i = 0; i < n; i++)
1504 cb((struct detailed_timing *)(det_base + 18 * i), closure);
1505 }
1506
1507 static void
1508 vtb_for_each_detailed_block(u8 *ext, detailed_cb *cb, void *closure)
1509 {
1510 unsigned int i, n = min((int)ext[0x02], 6);
1511 u8 *det_base = ext + 5;
1512
1513 if (ext[0x01] != 1)
1514 return; /* unknown version */
1515
1516 for (i = 0; i < n; i++)
1517 cb((struct detailed_timing *)(det_base + 18 * i), closure);
1518 }
1519
1520 static void
1521 drm_for_each_detailed_block(u8 *raw_edid, detailed_cb *cb, void *closure)
1522 {
1523 int i;
1524 struct edid *edid = (struct edid *)raw_edid;
1525
1526 if (edid == NULL)
1527 return;
1528
1529 for (i = 0; i < EDID_DETAILED_TIMINGS; i++)
1530 cb(&(edid->detailed_timings[i]), closure);
1531
1532 for (i = 1; i <= raw_edid[0x7e]; i++) {
1533 u8 *ext = raw_edid + (i * EDID_LENGTH);
1534 switch (*ext) {
1535 case CEA_EXT:
1536 cea_for_each_detailed_block(ext, cb, closure);
1537 break;
1538 case VTB_EXT:
1539 vtb_for_each_detailed_block(ext, cb, closure);
1540 break;
1541 default:
1542 break;
1543 }
1544 }
1545 }
1546
1547 static void
1548 is_rb(struct detailed_timing *t, void *data)
1549 {
1550 u8 *r = (u8 *)t;
1551 if (r[3] == EDID_DETAIL_MONITOR_RANGE)
1552 if (r[15] & 0x10)
1553 *(bool *)data = true;
1554 }
1555
1556 /* EDID 1.4 defines this explicitly. For EDID 1.3, we guess, badly. */
1557 static bool
1558 drm_monitor_supports_rb(struct edid *edid)
1559 {
1560 if (edid->revision >= 4) {
1561 bool ret = false;
1562 drm_for_each_detailed_block((u8 *)edid, is_rb, &ret);
1563 return ret;
1564 }
1565
1566 return ((edid->input & DRM_EDID_INPUT_DIGITAL) != 0);
1567 }
1568
1569 static void
1570 find_gtf2(struct detailed_timing *t, void *data)
1571 {
1572 u8 *r = (u8 *)t;
1573 if (r[3] == EDID_DETAIL_MONITOR_RANGE && r[10] == 0x02)
1574 *(u8 **)data = r;
1575 }
1576
1577 /* Secondary GTF curve kicks in above some break frequency */
1578 static int
1579 drm_gtf2_hbreak(struct edid *edid)
1580 {
1581 u8 *r = NULL;
1582 drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
1583 return r ? (r[12] * 2) : 0;
1584 }
1585
1586 static int
1587 drm_gtf2_2c(struct edid *edid)
1588 {
1589 u8 *r = NULL;
1590 drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
1591 return r ? r[13] : 0;
1592 }
1593
1594 static int
1595 drm_gtf2_m(struct edid *edid)
1596 {
1597 u8 *r = NULL;
1598 drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
1599 return r ? (r[15] << 8) + r[14] : 0;
1600 }
1601
1602 static int
1603 drm_gtf2_k(struct edid *edid)
1604 {
1605 u8 *r = NULL;
1606 drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
1607 return r ? r[16] : 0;
1608 }
1609
1610 static int
1611 drm_gtf2_2j(struct edid *edid)
1612 {
1613 u8 *r = NULL;
1614 drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
1615 return r ? r[17] : 0;
1616 }
1617
1618 /**
1619 * standard_timing_level - get std. timing level(CVT/GTF/DMT)
1620 * @edid: EDID block to scan
1621 */
1622 static int standard_timing_level(struct edid *edid)
1623 {
1624 if (edid->revision >= 2) {
1625 if (edid->revision >= 4 && (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF))
1626 return LEVEL_CVT;
1627 if (drm_gtf2_hbreak(edid))
1628 return LEVEL_GTF2;
1629 return LEVEL_GTF;
1630 }
1631 return LEVEL_DMT;
1632 }
1633
1634 /*
1635 * 0 is reserved. The spec says 0x01 fill for unused timings. Some old
1636 * monitors fill with ascii space (0x20) instead.
1637 */
1638 static int
1639 bad_std_timing(u8 a, u8 b)
1640 {
1641 return (a == 0x00 && b == 0x00) ||
1642 (a == 0x01 && b == 0x01) ||
1643 (a == 0x20 && b == 0x20);
1644 }
1645
1646 /**
1647 * drm_mode_std - convert standard mode info (width, height, refresh) into mode
1648 * @connector: connector of for the EDID block
1649 * @edid: EDID block to scan
1650 * @t: standard timing params
1651 *
1652 * Take the standard timing params (in this case width, aspect, and refresh)
1653 * and convert them into a real mode using CVT/GTF/DMT.
1654 */
1655 static struct drm_display_mode *
1656 drm_mode_std(struct drm_connector *connector, struct edid *edid,
1657 struct std_timing *t)
1658 {
1659 struct drm_device *dev = connector->dev;
1660 struct drm_display_mode *m, *mode = NULL;
1661 int hsize, vsize;
1662 int vrefresh_rate;
1663 unsigned aspect_ratio = (t->vfreq_aspect & EDID_TIMING_ASPECT_MASK)
1664 >> EDID_TIMING_ASPECT_SHIFT;
1665 unsigned vfreq = (t->vfreq_aspect & EDID_TIMING_VFREQ_MASK)
1666 >> EDID_TIMING_VFREQ_SHIFT;
1667 int timing_level = standard_timing_level(edid);
1668
1669 if (bad_std_timing(t->hsize, t->vfreq_aspect))
1670 return NULL;
1671
1672 /* According to the EDID spec, the hdisplay = hsize * 8 + 248 */
1673 hsize = t->hsize * 8 + 248;
1674 /* vrefresh_rate = vfreq + 60 */
1675 vrefresh_rate = vfreq + 60;
1676 /* the vdisplay is calculated based on the aspect ratio */
1677 if (aspect_ratio == 0) {
1678 if (edid->revision < 3)
1679 vsize = hsize;
1680 else
1681 vsize = (hsize * 10) / 16;
1682 } else if (aspect_ratio == 1)
1683 vsize = (hsize * 3) / 4;
1684 else if (aspect_ratio == 2)
1685 vsize = (hsize * 4) / 5;
1686 else
1687 vsize = (hsize * 9) / 16;
1688
1689 /* HDTV hack, part 1 */
1690 if (vrefresh_rate == 60 &&
1691 ((hsize == 1360 && vsize == 765) ||
1692 (hsize == 1368 && vsize == 769))) {
1693 hsize = 1366;
1694 vsize = 768;
1695 }
1696
1697 /*
1698 * If this connector already has a mode for this size and refresh
1699 * rate (because it came from detailed or CVT info), use that
1700 * instead. This way we don't have to guess at interlace or
1701 * reduced blanking.
1702 */
1703 list_for_each_entry(m, &connector->probed_modes, head)
1704 if (m->hdisplay == hsize && m->vdisplay == vsize &&
1705 drm_mode_vrefresh(m) == vrefresh_rate)
1706 return NULL;
1707
1708 /* HDTV hack, part 2 */
1709 if (hsize == 1366 && vsize == 768 && vrefresh_rate == 60) {
1710 mode = drm_cvt_mode(dev, 1366, 768, vrefresh_rate, 0, 0,
1711 false);
1712 mode->hdisplay = 1366;
1713 mode->hsync_start = mode->hsync_start - 1;
1714 mode->hsync_end = mode->hsync_end - 1;
1715 return mode;
1716 }
1717
1718 /* check whether it can be found in default mode table */
1719 if (drm_monitor_supports_rb(edid)) {
1720 mode = drm_mode_find_dmt(dev, hsize, vsize, vrefresh_rate,
1721 true);
1722 if (mode)
1723 return mode;
1724 }
1725 mode = drm_mode_find_dmt(dev, hsize, vsize, vrefresh_rate, false);
1726 if (mode)
1727 return mode;
1728
1729 /* okay, generate it */
1730 switch (timing_level) {
1731 case LEVEL_DMT:
1732 break;
1733 case LEVEL_GTF:
1734 mode = drm_gtf_mode(dev, hsize, vsize, vrefresh_rate, 0, 0);
1735 break;
1736 case LEVEL_GTF2:
1737 /*
1738 * This is potentially wrong if there's ever a monitor with
1739 * more than one ranges section, each claiming a different
1740 * secondary GTF curve. Please don't do that.
1741 */
1742 mode = drm_gtf_mode(dev, hsize, vsize, vrefresh_rate, 0, 0);
1743 if (!mode)
1744 return NULL;
1745 if (drm_mode_hsync(mode) > drm_gtf2_hbreak(edid)) {
1746 drm_mode_destroy(dev, mode);
1747 mode = drm_gtf_mode_complex(dev, hsize, vsize,
1748 vrefresh_rate, 0, 0,
1749 drm_gtf2_m(edid),
1750 drm_gtf2_2c(edid),
1751 drm_gtf2_k(edid),
1752 drm_gtf2_2j(edid));
1753 }
1754 break;
1755 case LEVEL_CVT:
1756 mode = drm_cvt_mode(dev, hsize, vsize, vrefresh_rate, 0, 0,
1757 false);
1758 break;
1759 }
1760 return mode;
1761 }
1762
1763 /*
1764 * EDID is delightfully ambiguous about how interlaced modes are to be
1765 * encoded. Our internal representation is of frame height, but some
1766 * HDTV detailed timings are encoded as field height.
1767 *
1768 * The format list here is from CEA, in frame size. Technically we
1769 * should be checking refresh rate too. Whatever.
1770 */
1771 static void
1772 drm_mode_do_interlace_quirk(struct drm_display_mode *mode,
1773 struct detailed_pixel_timing *pt)
1774 {
1775 int i;
1776 static const struct {
1777 int w, h;
1778 } cea_interlaced[] = {
1779 { 1920, 1080 },
1780 { 720, 480 },
1781 { 1440, 480 },
1782 { 2880, 480 },
1783 { 720, 576 },
1784 { 1440, 576 },
1785 { 2880, 576 },
1786 };
1787
1788 if (!(pt->misc & DRM_EDID_PT_INTERLACED))
1789 return;
1790
1791 for (i = 0; i < ARRAY_SIZE(cea_interlaced); i++) {
1792 if ((mode->hdisplay == cea_interlaced[i].w) &&
1793 (mode->vdisplay == cea_interlaced[i].h / 2)) {
1794 mode->vdisplay *= 2;
1795 mode->vsync_start *= 2;
1796 mode->vsync_end *= 2;
1797 mode->vtotal *= 2;
1798 mode->vtotal |= 1;
1799 }
1800 }
1801
1802 mode->flags |= DRM_MODE_FLAG_INTERLACE;
1803 }
1804
1805 /**
1806 * drm_mode_detailed - create a new mode from an EDID detailed timing section
1807 * @dev: DRM device (needed to create new mode)
1808 * @edid: EDID block
1809 * @timing: EDID detailed timing info
1810 * @quirks: quirks to apply
1811 *
1812 * An EDID detailed timing block contains enough info for us to create and
1813 * return a new struct drm_display_mode.
1814 */
1815 static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev,
1816 struct edid *edid,
1817 struct detailed_timing *timing,
1818 u32 quirks)
1819 {
1820 struct drm_display_mode *mode;
1821 struct detailed_pixel_timing *pt = &timing->data.pixel_data;
1822 unsigned hactive = (pt->hactive_hblank_hi & 0xf0) << 4 | pt->hactive_lo;
1823 unsigned vactive = (pt->vactive_vblank_hi & 0xf0) << 4 | pt->vactive_lo;
1824 unsigned hblank = (pt->hactive_hblank_hi & 0xf) << 8 | pt->hblank_lo;
1825 unsigned vblank = (pt->vactive_vblank_hi & 0xf) << 8 | pt->vblank_lo;
1826 unsigned hsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc0) << 2 | pt->hsync_offset_lo;
1827 unsigned hsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x30) << 4 | pt->hsync_pulse_width_lo;
1828 unsigned vsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc) << 2 | pt->vsync_offset_pulse_width_lo >> 4;
1829 unsigned vsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x3) << 4 | (pt->vsync_offset_pulse_width_lo & 0xf);
1830
1831 /* ignore tiny modes */
1832 if (hactive < 64 || vactive < 64)
1833 return NULL;
1834
1835 if (pt->misc & DRM_EDID_PT_STEREO) {
1836 DRM_DEBUG_KMS("stereo mode not supported\n");
1837 return NULL;
1838 }
1839 if (!(pt->misc & DRM_EDID_PT_SEPARATE_SYNC)) {
1840 DRM_DEBUG_KMS("composite sync not supported\n");
1841 }
1842
1843 /* it is incorrect if hsync/vsync width is zero */
1844 if (!hsync_pulse_width || !vsync_pulse_width) {
1845 DRM_DEBUG_KMS("Incorrect Detailed timing. "
1846 "Wrong Hsync/Vsync pulse width\n");
1847 return NULL;
1848 }
1849
1850 if (quirks & EDID_QUIRK_FORCE_REDUCED_BLANKING) {
1851 mode = drm_cvt_mode(dev, hactive, vactive, 60, true, false, false);
1852 if (!mode)
1853 return NULL;
1854
1855 goto set_size;
1856 }
1857
1858 mode = drm_mode_create(dev);
1859 if (!mode)
1860 return NULL;
1861
1862 if (quirks & EDID_QUIRK_135_CLOCK_TOO_HIGH)
1863 timing->pixel_clock = cpu_to_le16(1088);
1864
1865 mode->clock = le16_to_cpu(timing->pixel_clock) * 10;
1866
1867 mode->hdisplay = hactive;
1868 mode->hsync_start = mode->hdisplay + hsync_offset;
1869 mode->hsync_end = mode->hsync_start + hsync_pulse_width;
1870 mode->htotal = mode->hdisplay + hblank;
1871
1872 mode->vdisplay = vactive;
1873 mode->vsync_start = mode->vdisplay + vsync_offset;
1874 mode->vsync_end = mode->vsync_start + vsync_pulse_width;
1875 mode->vtotal = mode->vdisplay + vblank;
1876
1877 /* Some EDIDs have bogus h/vtotal values */
1878 if (mode->hsync_end > mode->htotal)
1879 mode->htotal = mode->hsync_end + 1;
1880 if (mode->vsync_end > mode->vtotal)
1881 mode->vtotal = mode->vsync_end + 1;
1882
1883 drm_mode_do_interlace_quirk(mode, pt);
1884
1885 if (quirks & EDID_QUIRK_DETAILED_SYNC_PP) {
1886 pt->misc |= DRM_EDID_PT_HSYNC_POSITIVE | DRM_EDID_PT_VSYNC_POSITIVE;
1887 }
1888
1889 mode->flags |= (pt->misc & DRM_EDID_PT_HSYNC_POSITIVE) ?
1890 DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
1891 mode->flags |= (pt->misc & DRM_EDID_PT_VSYNC_POSITIVE) ?
1892 DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
1893
1894 set_size:
1895 mode->width_mm = pt->width_mm_lo | (pt->width_height_mm_hi & 0xf0) << 4;
1896 mode->height_mm = pt->height_mm_lo | (pt->width_height_mm_hi & 0xf) << 8;
1897
1898 if (quirks & EDID_QUIRK_DETAILED_IN_CM) {
1899 mode->width_mm *= 10;
1900 mode->height_mm *= 10;
1901 }
1902
1903 if (quirks & EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE) {
1904 mode->width_mm = edid->width_cm * 10;
1905 mode->height_mm = edid->height_cm * 10;
1906 }
1907
1908 mode->type = DRM_MODE_TYPE_DRIVER;
1909 mode->vrefresh = drm_mode_vrefresh(mode);
1910 drm_mode_set_name(mode);
1911
1912 return mode;
1913 }
1914
1915 static bool
1916 mode_in_hsync_range(const struct drm_display_mode *mode,
1917 struct edid *edid, u8 *t)
1918 {
1919 int hsync, hmin, hmax;
1920
1921 hmin = t[7];
1922 if (edid->revision >= 4)
1923 hmin += ((t[4] & 0x04) ? 255 : 0);
1924 hmax = t[8];
1925 if (edid->revision >= 4)
1926 hmax += ((t[4] & 0x08) ? 255 : 0);
1927 hsync = drm_mode_hsync(mode);
1928
1929 return (hsync <= hmax && hsync >= hmin);
1930 }
1931
1932 static bool
1933 mode_in_vsync_range(const struct drm_display_mode *mode,
1934 struct edid *edid, u8 *t)
1935 {
1936 int vsync, vmin, vmax;
1937
1938 vmin = t[5];
1939 if (edid->revision >= 4)
1940 vmin += ((t[4] & 0x01) ? 255 : 0);
1941 vmax = t[6];
1942 if (edid->revision >= 4)
1943 vmax += ((t[4] & 0x02) ? 255 : 0);
1944 vsync = drm_mode_vrefresh(mode);
1945
1946 return (vsync <= vmax && vsync >= vmin);
1947 }
1948
1949 static u32
1950 range_pixel_clock(struct edid *edid, u8 *t)
1951 {
1952 /* unspecified */
1953 if (t[9] == 0 || t[9] == 255)
1954 return 0;
1955
1956 /* 1.4 with CVT support gives us real precision, yay */
1957 if (edid->revision >= 4 && t[10] == 0x04)
1958 return (t[9] * 10000) - ((t[12] >> 2) * 250);
1959
1960 /* 1.3 is pathetic, so fuzz up a bit */
1961 return t[9] * 10000 + 5001;
1962 }
1963
1964 static bool
1965 mode_in_range(const struct drm_display_mode *mode, struct edid *edid,
1966 struct detailed_timing *timing)
1967 {
1968 u32 max_clock;
1969 u8 *t = (u8 *)timing;
1970
1971 if (!mode_in_hsync_range(mode, edid, t))
1972 return false;
1973
1974 if (!mode_in_vsync_range(mode, edid, t))
1975 return false;
1976
1977 if ((max_clock = range_pixel_clock(edid, t)))
1978 if (mode->clock > max_clock)
1979 return false;
1980
1981 /* 1.4 max horizontal check */
1982 if (edid->revision >= 4 && t[10] == 0x04)
1983 if (t[13] && mode->hdisplay > 8 * (t[13] + (256 * (t[12]&0x3))))
1984 return false;
1985
1986 if (mode_is_rb(mode) && !drm_monitor_supports_rb(edid))
1987 return false;
1988
1989 return true;
1990 }
1991
1992 static bool valid_inferred_mode(const struct drm_connector *connector,
1993 const struct drm_display_mode *mode)
1994 {
1995 struct drm_display_mode *m;
1996 bool ok = false;
1997
1998 list_for_each_entry(m, &connector->probed_modes, head) {
1999 if (mode->hdisplay == m->hdisplay &&
2000 mode->vdisplay == m->vdisplay &&
2001 drm_mode_vrefresh(mode) == drm_mode_vrefresh(m))
2002 return false; /* duplicated */
2003 if (mode->hdisplay <= m->hdisplay &&
2004 mode->vdisplay <= m->vdisplay)
2005 ok = true;
2006 }
2007 return ok;
2008 }
2009
2010 static int
2011 drm_dmt_modes_for_range(struct drm_connector *connector, struct edid *edid,
2012 struct detailed_timing *timing)
2013 {
2014 int i, modes = 0;
2015 struct drm_display_mode *newmode;
2016 struct drm_device *dev = connector->dev;
2017
2018 for (i = 0; i < ARRAY_SIZE(drm_dmt_modes); i++) {
2019 if (mode_in_range(drm_dmt_modes + i, edid, timing) &&
2020 valid_inferred_mode(connector, drm_dmt_modes + i)) {
2021 newmode = drm_mode_duplicate(dev, &drm_dmt_modes[i]);
2022 if (newmode) {
2023 drm_mode_probed_add(connector, newmode);
2024 modes++;
2025 }
2026 }
2027 }
2028
2029 return modes;
2030 }
2031
2032 /* fix up 1366x768 mode from 1368x768;
2033 * GFT/CVT can't express 1366 width which isn't dividable by 8
2034 */
2035 static void fixup_mode_1366x768(struct drm_display_mode *mode)
2036 {
2037 if (mode->hdisplay == 1368 && mode->vdisplay == 768) {
2038 mode->hdisplay = 1366;
2039 mode->hsync_start--;
2040 mode->hsync_end--;
2041 drm_mode_set_name(mode);
2042 }
2043 }
2044
2045 static int
2046 drm_gtf_modes_for_range(struct drm_connector *connector, struct edid *edid,
2047 struct detailed_timing *timing)
2048 {
2049 int i, modes = 0;
2050 struct drm_display_mode *newmode;
2051 struct drm_device *dev = connector->dev;
2052
2053 for (i = 0; i < ARRAY_SIZE(extra_modes); i++) {
2054 const struct minimode *m = &extra_modes[i];
2055 newmode = drm_gtf_mode(dev, m->w, m->h, m->r, 0, 0);
2056 if (!newmode)
2057 return modes;
2058
2059 fixup_mode_1366x768(newmode);
2060 if (!mode_in_range(newmode, edid, timing) ||
2061 !valid_inferred_mode(connector, newmode)) {
2062 drm_mode_destroy(dev, newmode);
2063 continue;
2064 }
2065
2066 drm_mode_probed_add(connector, newmode);
2067 modes++;
2068 }
2069
2070 return modes;
2071 }
2072
2073 static int
2074 drm_cvt_modes_for_range(struct drm_connector *connector, struct edid *edid,
2075 struct detailed_timing *timing)
2076 {
2077 int i, modes = 0;
2078 struct drm_display_mode *newmode;
2079 struct drm_device *dev = connector->dev;
2080 bool rb = drm_monitor_supports_rb(edid);
2081
2082 for (i = 0; i < ARRAY_SIZE(extra_modes); i++) {
2083 const struct minimode *m = &extra_modes[i];
2084 newmode = drm_cvt_mode(dev, m->w, m->h, m->r, rb, 0, 0);
2085 if (!newmode)
2086 return modes;
2087
2088 fixup_mode_1366x768(newmode);
2089 if (!mode_in_range(newmode, edid, timing) ||
2090 !valid_inferred_mode(connector, newmode)) {
2091 drm_mode_destroy(dev, newmode);
2092 continue;
2093 }
2094
2095 drm_mode_probed_add(connector, newmode);
2096 modes++;
2097 }
2098
2099 return modes;
2100 }
2101
2102 static void
2103 do_inferred_modes(struct detailed_timing *timing, void *c)
2104 {
2105 struct detailed_mode_closure *closure = c;
2106 struct detailed_non_pixel *data = &timing->data.other_data;
2107 struct detailed_data_monitor_range *range = &data->data.range;
2108
2109 if (data->type != EDID_DETAIL_MONITOR_RANGE)
2110 return;
2111
2112 closure->modes += drm_dmt_modes_for_range(closure->connector,
2113 closure->edid,
2114 timing);
2115
2116 if (!version_greater(closure->edid, 1, 1))
2117 return; /* GTF not defined yet */
2118
2119 switch (range->flags) {
2120 case 0x02: /* secondary gtf, XXX could do more */
2121 case 0x00: /* default gtf */
2122 closure->modes += drm_gtf_modes_for_range(closure->connector,
2123 closure->edid,
2124 timing);
2125 break;
2126 case 0x04: /* cvt, only in 1.4+ */
2127 if (!version_greater(closure->edid, 1, 3))
2128 break;
2129
2130 closure->modes += drm_cvt_modes_for_range(closure->connector,
2131 closure->edid,
2132 timing);
2133 break;
2134 case 0x01: /* just the ranges, no formula */
2135 default:
2136 break;
2137 }
2138 }
2139
2140 static int
2141 add_inferred_modes(struct drm_connector *connector, struct edid *edid)
2142 {
2143 struct detailed_mode_closure closure = {
2144 .connector = connector,
2145 .edid = edid,
2146 };
2147
2148 if (version_greater(edid, 1, 0))
2149 drm_for_each_detailed_block((u8 *)edid, do_inferred_modes,
2150 &closure);
2151
2152 return closure.modes;
2153 }
2154
2155 static int
2156 drm_est3_modes(struct drm_connector *connector, struct detailed_timing *timing)
2157 {
2158 int i, j, m, modes = 0;
2159 struct drm_display_mode *mode;
2160 u8 *est = ((u8 *)timing) + 5;
2161
2162 for (i = 0; i < 6; i++) {
2163 for (j = 7; j >= 0; j--) {
2164 m = (i * 8) + (7 - j);
2165 if (m >= ARRAY_SIZE(est3_modes))
2166 break;
2167 if (est[i] & (1 << j)) {
2168 mode = drm_mode_find_dmt(connector->dev,
2169 est3_modes[m].w,
2170 est3_modes[m].h,
2171 est3_modes[m].r,
2172 est3_modes[m].rb);
2173 if (mode) {
2174 drm_mode_probed_add(connector, mode);
2175 modes++;
2176 }
2177 }
2178 }
2179 }
2180
2181 return modes;
2182 }
2183
2184 static void
2185 do_established_modes(struct detailed_timing *timing, void *c)
2186 {
2187 struct detailed_mode_closure *closure = c;
2188 struct detailed_non_pixel *data = &timing->data.other_data;
2189
2190 if (data->type == EDID_DETAIL_EST_TIMINGS)
2191 closure->modes += drm_est3_modes(closure->connector, timing);
2192 }
2193
2194 /**
2195 * add_established_modes - get est. modes from EDID and add them
2196 * @connector: connector to add mode(s) to
2197 * @edid: EDID block to scan
2198 *
2199 * Each EDID block contains a bitmap of the supported "established modes" list
2200 * (defined above). Tease them out and add them to the global modes list.
2201 */
2202 static int
2203 add_established_modes(struct drm_connector *connector, struct edid *edid)
2204 {
2205 struct drm_device *dev = connector->dev;
2206 unsigned long est_bits = edid->established_timings.t1 |
2207 (edid->established_timings.t2 << 8) |
2208 ((edid->established_timings.mfg_rsvd & 0x80) << 9);
2209 int i, modes = 0;
2210 struct detailed_mode_closure closure = {
2211 .connector = connector,
2212 .edid = edid,
2213 };
2214
2215 for (i = 0; i <= EDID_EST_TIMINGS; i++) {
2216 if (est_bits & (1<<i)) {
2217 struct drm_display_mode *newmode;
2218 newmode = drm_mode_duplicate(dev, &edid_est_modes[i]);
2219 if (newmode) {
2220 drm_mode_probed_add(connector, newmode);
2221 modes++;
2222 }
2223 }
2224 }
2225
2226 if (version_greater(edid, 1, 0))
2227 drm_for_each_detailed_block((u8 *)edid,
2228 do_established_modes, &closure);
2229
2230 return modes + closure.modes;
2231 }
2232
2233 static void
2234 do_standard_modes(struct detailed_timing *timing, void *c)
2235 {
2236 struct detailed_mode_closure *closure = c;
2237 struct detailed_non_pixel *data = &timing->data.other_data;
2238 struct drm_connector *connector = closure->connector;
2239 struct edid *edid = closure->edid;
2240
2241 if (data->type == EDID_DETAIL_STD_MODES) {
2242 int i;
2243 for (i = 0; i < 6; i++) {
2244 struct std_timing *std;
2245 struct drm_display_mode *newmode;
2246
2247 std = &data->data.timings[i];
2248 newmode = drm_mode_std(connector, edid, std);
2249 if (newmode) {
2250 drm_mode_probed_add(connector, newmode);
2251 closure->modes++;
2252 }
2253 }
2254 }
2255 }
2256
2257 /**
2258 * add_standard_modes - get std. modes from EDID and add them
2259 * @connector: connector to add mode(s) to
2260 * @edid: EDID block to scan
2261 *
2262 * Standard modes can be calculated using the appropriate standard (DMT,
2263 * GTF or CVT. Grab them from @edid and add them to the list.
2264 */
2265 static int
2266 add_standard_modes(struct drm_connector *connector, struct edid *edid)
2267 {
2268 int i, modes = 0;
2269 struct detailed_mode_closure closure = {
2270 .connector = connector,
2271 .edid = edid,
2272 };
2273
2274 for (i = 0; i < EDID_STD_TIMINGS; i++) {
2275 struct drm_display_mode *newmode;
2276
2277 newmode = drm_mode_std(connector, edid,
2278 &edid->standard_timings[i]);
2279 if (newmode) {
2280 drm_mode_probed_add(connector, newmode);
2281 modes++;
2282 }
2283 }
2284
2285 if (version_greater(edid, 1, 0))
2286 drm_for_each_detailed_block((u8 *)edid, do_standard_modes,
2287 &closure);
2288
2289 /* XXX should also look for standard codes in VTB blocks */
2290
2291 return modes + closure.modes;
2292 }
2293
2294 static int drm_cvt_modes(struct drm_connector *connector,
2295 struct detailed_timing *timing)
2296 {
2297 int i, j, modes = 0;
2298 struct drm_display_mode *newmode;
2299 struct drm_device *dev = connector->dev;
2300 struct cvt_timing *cvt;
2301 const int rates[] = { 60, 85, 75, 60, 50 };
2302 const u8 empty[3] = { 0, 0, 0 };
2303
2304 for (i = 0; i < 4; i++) {
2305 int uninitialized_var(width), height;
2306 cvt = &(timing->data.other_data.data.cvt[i]);
2307
2308 if (!memcmp(cvt->code, empty, 3))
2309 continue;
2310
2311 height = (cvt->code[0] + ((cvt->code[1] & 0xf0) << 4) + 1) * 2;
2312 switch (cvt->code[1] & 0x0c) {
2313 case 0x00:
2314 width = height * 4 / 3;
2315 break;
2316 case 0x04:
2317 width = height * 16 / 9;
2318 break;
2319 case 0x08:
2320 width = height * 16 / 10;
2321 break;
2322 case 0x0c:
2323 width = height * 15 / 9;
2324 break;
2325 }
2326
2327 for (j = 1; j < 5; j++) {
2328 if (cvt->code[2] & (1 << j)) {
2329 newmode = drm_cvt_mode(dev, width, height,
2330 rates[j], j == 0,
2331 false, false);
2332 if (newmode) {
2333 drm_mode_probed_add(connector, newmode);
2334 modes++;
2335 }
2336 }
2337 }
2338 }
2339
2340 return modes;
2341 }
2342
2343 static void
2344 do_cvt_mode(struct detailed_timing *timing, void *c)
2345 {
2346 struct detailed_mode_closure *closure = c;
2347 struct detailed_non_pixel *data = &timing->data.other_data;
2348
2349 if (data->type == EDID_DETAIL_CVT_3BYTE)
2350 closure->modes += drm_cvt_modes(closure->connector, timing);
2351 }
2352
2353 static int
2354 add_cvt_modes(struct drm_connector *connector, struct edid *edid)
2355 {
2356 struct detailed_mode_closure closure = {
2357 .connector = connector,
2358 .edid = edid,
2359 };
2360
2361 if (version_greater(edid, 1, 2))
2362 drm_for_each_detailed_block((u8 *)edid, do_cvt_mode, &closure);
2363
2364 /* XXX should also look for CVT codes in VTB blocks */
2365
2366 return closure.modes;
2367 }
2368
2369 static void
2370 do_detailed_mode(struct detailed_timing *timing, void *c)
2371 {
2372 struct detailed_mode_closure *closure = c;
2373 struct drm_display_mode *newmode;
2374
2375 if (timing->pixel_clock) {
2376 newmode = drm_mode_detailed(closure->connector->dev,
2377 closure->edid, timing,
2378 closure->quirks);
2379 if (!newmode)
2380 return;
2381
2382 if (closure->preferred)
2383 newmode->type |= DRM_MODE_TYPE_PREFERRED;
2384
2385 drm_mode_probed_add(closure->connector, newmode);
2386 closure->modes++;
2387 closure->preferred = 0;
2388 }
2389 }
2390
2391 /*
2392 * add_detailed_modes - Add modes from detailed timings
2393 * @connector: attached connector
2394 * @edid: EDID block to scan
2395 * @quirks: quirks to apply
2396 */
2397 static int
2398 add_detailed_modes(struct drm_connector *connector, struct edid *edid,
2399 u32 quirks)
2400 {
2401 struct detailed_mode_closure closure = {
2402 .connector = connector,
2403 .edid = edid,
2404 .preferred = 1,
2405 .quirks = quirks,
2406 };
2407
2408 if (closure.preferred && !version_greater(edid, 1, 3))
2409 closure.preferred =
2410 (edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING);
2411
2412 drm_for_each_detailed_block((u8 *)edid, do_detailed_mode, &closure);
2413
2414 return closure.modes;
2415 }
2416
2417 #define AUDIO_BLOCK 0x01
2418 #define VIDEO_BLOCK 0x02
2419 #define VENDOR_BLOCK 0x03
2420 #define SPEAKER_BLOCK 0x04
2421 #define VIDEO_CAPABILITY_BLOCK 0x07
2422 #define EDID_BASIC_AUDIO (1 << 6)
2423 #define EDID_CEA_YCRCB444 (1 << 5)
2424 #define EDID_CEA_YCRCB422 (1 << 4)
2425 #define EDID_CEA_VCDB_QS (1 << 6)
2426
2427 /*
2428 * Search EDID for CEA extension block.
2429 */
2430 static u8 *drm_find_edid_extension(struct edid *edid, int ext_id)
2431 {
2432 u8 *edid_ext = NULL;
2433 int i;
2434
2435 /* No EDID or EDID extensions */
2436 if (edid == NULL || edid->extensions == 0)
2437 return NULL;
2438
2439 /* Find CEA extension */
2440 for (i = 0; i < edid->extensions; i++) {
2441 edid_ext = (u8 *)edid + EDID_LENGTH * (i + 1);
2442 if (edid_ext[0] == ext_id)
2443 break;
2444 }
2445
2446 if (i == edid->extensions)
2447 return NULL;
2448
2449 return edid_ext;
2450 }
2451
2452 static u8 *drm_find_cea_extension(struct edid *edid)
2453 {
2454 return drm_find_edid_extension(edid, CEA_EXT);
2455 }
2456
2457 static u8 *drm_find_displayid_extension(struct edid *edid)
2458 {
2459 return drm_find_edid_extension(edid, DISPLAYID_EXT);
2460 }
2461
2462 /*
2463 * Calculate the alternate clock for the CEA mode
2464 * (60Hz vs. 59.94Hz etc.)
2465 */
2466 static unsigned int
2467 cea_mode_alternate_clock(const struct drm_display_mode *cea_mode)
2468 {
2469 unsigned int clock = cea_mode->clock;
2470
2471 if (cea_mode->vrefresh % 6 != 0)
2472 return clock;
2473
2474 /*
2475 * edid_cea_modes contains the 59.94Hz
2476 * variant for 240 and 480 line modes,
2477 * and the 60Hz variant otherwise.
2478 */
2479 if (cea_mode->vdisplay == 240 || cea_mode->vdisplay == 480)
2480 clock = clock * 1001 / 1000;
2481 else
2482 clock = DIV_ROUND_UP(clock * 1000, 1001);
2483
2484 return clock;
2485 }
2486
2487 /**
2488 * drm_match_cea_mode - look for a CEA mode matching given mode
2489 * @to_match: display mode
2490 *
2491 * Return: The CEA Video ID (VIC) of the mode or 0 if it isn't a CEA-861
2492 * mode.
2493 */
2494 u8 drm_match_cea_mode(const struct drm_display_mode *to_match)
2495 {
2496 u8 mode;
2497
2498 if (!to_match->clock)
2499 return 0;
2500
2501 for (mode = 0; mode < ARRAY_SIZE(edid_cea_modes); mode++) {
2502 const struct drm_display_mode *cea_mode = &edid_cea_modes[mode];
2503 unsigned int clock1, clock2;
2504
2505 /* Check both 60Hz and 59.94Hz */
2506 clock1 = cea_mode->clock;
2507 clock2 = cea_mode_alternate_clock(cea_mode);
2508
2509 if ((KHZ2PICOS(to_match->clock) == KHZ2PICOS(clock1) ||
2510 KHZ2PICOS(to_match->clock) == KHZ2PICOS(clock2)) &&
2511 drm_mode_equal_no_clocks_no_stereo(to_match, cea_mode))
2512 return mode + 1;
2513 }
2514 return 0;
2515 }
2516 EXPORT_SYMBOL(drm_match_cea_mode);
2517
2518 /**
2519 * drm_get_cea_aspect_ratio - get the picture aspect ratio corresponding to
2520 * the input VIC from the CEA mode list
2521 * @video_code: ID given to each of the CEA modes
2522 *
2523 * Returns picture aspect ratio
2524 */
2525 enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code)
2526 {
2527 /* return picture aspect ratio for video_code - 1 to access the
2528 * right array element
2529 */
2530 return edid_cea_modes[video_code-1].picture_aspect_ratio;
2531 }
2532 EXPORT_SYMBOL(drm_get_cea_aspect_ratio);
2533
2534 /*
2535 * Calculate the alternate clock for HDMI modes (those from the HDMI vendor
2536 * specific block).
2537 *
2538 * It's almost like cea_mode_alternate_clock(), we just need to add an
2539 * exception for the VIC 4 mode (4096x2160@24Hz): no alternate clock for this
2540 * one.
2541 */
2542 static unsigned int
2543 hdmi_mode_alternate_clock(const struct drm_display_mode *hdmi_mode)
2544 {
2545 if (hdmi_mode->vdisplay == 4096 && hdmi_mode->hdisplay == 2160)
2546 return hdmi_mode->clock;
2547
2548 return cea_mode_alternate_clock(hdmi_mode);
2549 }
2550
2551 /*
2552 * drm_match_hdmi_mode - look for a HDMI mode matching given mode
2553 * @to_match: display mode
2554 *
2555 * An HDMI mode is one defined in the HDMI vendor specific block.
2556 *
2557 * Returns the HDMI Video ID (VIC) of the mode or 0 if it isn't one.
2558 */
2559 static u8 drm_match_hdmi_mode(const struct drm_display_mode *to_match)
2560 {
2561 u8 mode;
2562
2563 if (!to_match->clock)
2564 return 0;
2565
2566 for (mode = 0; mode < ARRAY_SIZE(edid_4k_modes); mode++) {
2567 const struct drm_display_mode *hdmi_mode = &edid_4k_modes[mode];
2568 unsigned int clock1, clock2;
2569
2570 /* Make sure to also match alternate clocks */
2571 clock1 = hdmi_mode->clock;
2572 clock2 = hdmi_mode_alternate_clock(hdmi_mode);
2573
2574 if ((KHZ2PICOS(to_match->clock) == KHZ2PICOS(clock1) ||
2575 KHZ2PICOS(to_match->clock) == KHZ2PICOS(clock2)) &&
2576 drm_mode_equal_no_clocks_no_stereo(to_match, hdmi_mode))
2577 return mode + 1;
2578 }
2579 return 0;
2580 }
2581
2582 static int
2583 add_alternate_cea_modes(struct drm_connector *connector, struct edid *edid)
2584 {
2585 struct drm_device *dev = connector->dev;
2586 struct drm_display_mode *mode, *tmp;
2587 LIST_HEAD(list);
2588 int modes = 0;
2589
2590 /* Don't add CEA modes if the CEA extension block is missing */
2591 if (!drm_find_cea_extension(edid))
2592 return 0;
2593
2594 /*
2595 * Go through all probed modes and create a new mode
2596 * with the alternate clock for certain CEA modes.
2597 */
2598 list_for_each_entry(mode, &connector->probed_modes, head) {
2599 const struct drm_display_mode *cea_mode = NULL;
2600 struct drm_display_mode *newmode;
2601 u8 mode_idx = drm_match_cea_mode(mode) - 1;
2602 unsigned int clock1, clock2;
2603
2604 if (mode_idx < ARRAY_SIZE(edid_cea_modes)) {
2605 cea_mode = &edid_cea_modes[mode_idx];
2606 clock2 = cea_mode_alternate_clock(cea_mode);
2607 } else {
2608 mode_idx = drm_match_hdmi_mode(mode) - 1;
2609 if (mode_idx < ARRAY_SIZE(edid_4k_modes)) {
2610 cea_mode = &edid_4k_modes[mode_idx];
2611 clock2 = hdmi_mode_alternate_clock(cea_mode);
2612 }
2613 }
2614
2615 if (!cea_mode)
2616 continue;
2617
2618 clock1 = cea_mode->clock;
2619
2620 if (clock1 == clock2)
2621 continue;
2622
2623 if (mode->clock != clock1 && mode->clock != clock2)
2624 continue;
2625
2626 newmode = drm_mode_duplicate(dev, cea_mode);
2627 if (!newmode)
2628 continue;
2629
2630 /* Carry over the stereo flags */
2631 newmode->flags |= mode->flags & DRM_MODE_FLAG_3D_MASK;
2632
2633 /*
2634 * The current mode could be either variant. Make
2635 * sure to pick the "other" clock for the new mode.
2636 */
2637 if (mode->clock != clock1)
2638 newmode->clock = clock1;
2639 else
2640 newmode->clock = clock2;
2641
2642 list_add_tail(&newmode->head, &list);
2643 }
2644
2645 list_for_each_entry_safe(mode, tmp, &list, head) {
2646 list_del(&mode->head);
2647 drm_mode_probed_add(connector, mode);
2648 modes++;
2649 }
2650
2651 return modes;
2652 }
2653
2654 static struct drm_display_mode *
2655 drm_display_mode_from_vic_index(struct drm_connector *connector,
2656 const u8 *video_db, u8 video_len,
2657 u8 video_index)
2658 {
2659 struct drm_device *dev = connector->dev;
2660 struct drm_display_mode *newmode;
2661 u8 cea_mode;
2662
2663 if (video_db == NULL || video_index >= video_len)
2664 return NULL;
2665
2666 /* CEA modes are numbered 1..127 */
2667 cea_mode = (video_db[video_index] & 127) - 1;
2668 if (cea_mode >= ARRAY_SIZE(edid_cea_modes))
2669 return NULL;
2670
2671 newmode = drm_mode_duplicate(dev, &edid_cea_modes[cea_mode]);
2672 if (!newmode)
2673 return NULL;
2674
2675 newmode->vrefresh = 0;
2676
2677 return newmode;
2678 }
2679
2680 static int
2681 do_cea_modes(struct drm_connector *connector, const u8 *db, u8 len)
2682 {
2683 int i, modes = 0;
2684
2685 for (i = 0; i < len; i++) {
2686 struct drm_display_mode *mode;
2687 mode = drm_display_mode_from_vic_index(connector, db, len, i);
2688 if (mode) {
2689 drm_mode_probed_add(connector, mode);
2690 modes++;
2691 }
2692 }
2693
2694 return modes;
2695 }
2696
2697 struct stereo_mandatory_mode {
2698 int width, height, vrefresh;
2699 unsigned int flags;
2700 };
2701
2702 static const struct stereo_mandatory_mode stereo_mandatory_modes[] = {
2703 { 1920, 1080, 24, DRM_MODE_FLAG_3D_TOP_AND_BOTTOM },
2704 { 1920, 1080, 24, DRM_MODE_FLAG_3D_FRAME_PACKING },
2705 { 1920, 1080, 50,
2706 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF },
2707 { 1920, 1080, 60,
2708 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF },
2709 { 1280, 720, 50, DRM_MODE_FLAG_3D_TOP_AND_BOTTOM },
2710 { 1280, 720, 50, DRM_MODE_FLAG_3D_FRAME_PACKING },
2711 { 1280, 720, 60, DRM_MODE_FLAG_3D_TOP_AND_BOTTOM },
2712 { 1280, 720, 60, DRM_MODE_FLAG_3D_FRAME_PACKING }
2713 };
2714
2715 static bool
2716 stereo_match_mandatory(const struct drm_display_mode *mode,
2717 const struct stereo_mandatory_mode *stereo_mode)
2718 {
2719 unsigned int interlaced = mode->flags & DRM_MODE_FLAG_INTERLACE;
2720
2721 return mode->hdisplay == stereo_mode->width &&
2722 mode->vdisplay == stereo_mode->height &&
2723 interlaced == (stereo_mode->flags & DRM_MODE_FLAG_INTERLACE) &&
2724 drm_mode_vrefresh(mode) == stereo_mode->vrefresh;
2725 }
2726
2727 static int add_hdmi_mandatory_stereo_modes(struct drm_connector *connector)
2728 {
2729 struct drm_device *dev = connector->dev;
2730 const struct drm_display_mode *mode;
2731 struct list_head stereo_modes;
2732 int modes = 0, i;
2733
2734 INIT_LIST_HEAD(&stereo_modes);
2735
2736 list_for_each_entry(mode, &connector->probed_modes, head) {
2737 for (i = 0; i < ARRAY_SIZE(stereo_mandatory_modes); i++) {
2738 const struct stereo_mandatory_mode *mandatory;
2739 struct drm_display_mode *new_mode;
2740
2741 if (!stereo_match_mandatory(mode,
2742 &stereo_mandatory_modes[i]))
2743 continue;
2744
2745 mandatory = &stereo_mandatory_modes[i];
2746 new_mode = drm_mode_duplicate(dev, mode);
2747 if (!new_mode)
2748 continue;
2749
2750 new_mode->flags |= mandatory->flags;
2751 list_add_tail(&new_mode->head, &stereo_modes);
2752 modes++;
2753 }
2754 }
2755
2756 list_splice_tail(&stereo_modes, &connector->probed_modes);
2757
2758 return modes;
2759 }
2760
2761 static int add_hdmi_mode(struct drm_connector *connector, u8 vic)
2762 {
2763 struct drm_device *dev = connector->dev;
2764 struct drm_display_mode *newmode;
2765
2766 vic--; /* VICs start at 1 */
2767 if (vic >= ARRAY_SIZE(edid_4k_modes)) {
2768 DRM_ERROR("Unknown HDMI VIC: %d\n", vic);
2769 return 0;
2770 }
2771
2772 newmode = drm_mode_duplicate(dev, &edid_4k_modes[vic]);
2773 if (!newmode)
2774 return 0;
2775
2776 drm_mode_probed_add(connector, newmode);
2777
2778 return 1;
2779 }
2780
2781 static int add_3d_struct_modes(struct drm_connector *connector, u16 structure,
2782 const u8 *video_db, u8 video_len, u8 video_index)
2783 {
2784 struct drm_display_mode *newmode;
2785 int modes = 0;
2786
2787 if (structure & (1 << 0)) {
2788 newmode = drm_display_mode_from_vic_index(connector, video_db,
2789 video_len,
2790 video_index);
2791 if (newmode) {
2792 newmode->flags |= DRM_MODE_FLAG_3D_FRAME_PACKING;
2793 drm_mode_probed_add(connector, newmode);
2794 modes++;
2795 }
2796 }
2797 if (structure & (1 << 6)) {
2798 newmode = drm_display_mode_from_vic_index(connector, video_db,
2799 video_len,
2800 video_index);
2801 if (newmode) {
2802 newmode->flags |= DRM_MODE_FLAG_3D_TOP_AND_BOTTOM;
2803 drm_mode_probed_add(connector, newmode);
2804 modes++;
2805 }
2806 }
2807 if (structure & (1 << 8)) {
2808 newmode = drm_display_mode_from_vic_index(connector, video_db,
2809 video_len,
2810 video_index);
2811 if (newmode) {
2812 newmode->flags |= DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF;
2813 drm_mode_probed_add(connector, newmode);
2814 modes++;
2815 }
2816 }
2817
2818 return modes;
2819 }
2820
2821 /*
2822 * do_hdmi_vsdb_modes - Parse the HDMI Vendor Specific data block
2823 * @connector: connector corresponding to the HDMI sink
2824 * @db: start of the CEA vendor specific block
2825 * @len: length of the CEA block payload, ie. one can access up to db[len]
2826 *
2827 * Parses the HDMI VSDB looking for modes to add to @connector. This function
2828 * also adds the stereo 3d modes when applicable.
2829 */
2830 static int
2831 do_hdmi_vsdb_modes(struct drm_connector *connector, const u8 *db, u8 len,
2832 const u8 *video_db, u8 video_len)
2833 {
2834 int modes = 0, offset = 0, i, multi_present = 0, multi_len;
2835 u8 vic_len, hdmi_3d_len = 0;
2836 u16 mask;
2837 u16 structure_all;
2838
2839 if (len < 8)
2840 goto out;
2841
2842 /* no HDMI_Video_Present */
2843 if (!(db[8] & (1 << 5)))
2844 goto out;
2845
2846 /* Latency_Fields_Present */
2847 if (db[8] & (1 << 7))
2848 offset += 2;
2849
2850 /* I_Latency_Fields_Present */
2851 if (db[8] & (1 << 6))
2852 offset += 2;
2853
2854 /* the declared length is not long enough for the 2 first bytes
2855 * of additional video format capabilities */
2856 if (len < (8 + offset + 2))
2857 goto out;
2858
2859 /* 3D_Present */
2860 offset++;
2861 if (db[8 + offset] & (1 << 7)) {
2862 modes += add_hdmi_mandatory_stereo_modes(connector);
2863
2864 /* 3D_Multi_present */
2865 multi_present = (db[8 + offset] & 0x60) >> 5;
2866 }
2867
2868 offset++;
2869 vic_len = db[8 + offset] >> 5;
2870 hdmi_3d_len = db[8 + offset] & 0x1f;
2871
2872 for (i = 0; i < vic_len && len >= (9 + offset + i); i++) {
2873 u8 vic;
2874
2875 vic = db[9 + offset + i];
2876 modes += add_hdmi_mode(connector, vic);
2877 }
2878 offset += 1 + vic_len;
2879
2880 if (multi_present == 1)
2881 multi_len = 2;
2882 else if (multi_present == 2)
2883 multi_len = 4;
2884 else
2885 multi_len = 0;
2886
2887 if (len < (8 + offset + hdmi_3d_len - 1))
2888 goto out;
2889
2890 if (hdmi_3d_len < multi_len)
2891 goto out;
2892
2893 if (multi_present == 1 || multi_present == 2) {
2894 /* 3D_Structure_ALL */
2895 structure_all = (db[8 + offset] << 8) | db[9 + offset];
2896
2897 /* check if 3D_MASK is present */
2898 if (multi_present == 2)
2899 mask = (db[10 + offset] << 8) | db[11 + offset];
2900 else
2901 mask = 0xffff;
2902
2903 for (i = 0; i < 16; i++) {
2904 if (mask & (1 << i))
2905 modes += add_3d_struct_modes(connector,
2906 structure_all,
2907 video_db,
2908 video_len, i);
2909 }
2910 }
2911
2912 offset += multi_len;
2913
2914 for (i = 0; i < (hdmi_3d_len - multi_len); i++) {
2915 int vic_index;
2916 struct drm_display_mode *newmode = NULL;
2917 unsigned int newflag = 0;
2918 bool detail_present;
2919
2920 detail_present = ((db[8 + offset + i] & 0x0f) > 7);
2921
2922 if (detail_present && (i + 1 == hdmi_3d_len - multi_len))
2923 break;
2924
2925 /* 2D_VIC_order_X */
2926 vic_index = db[8 + offset + i] >> 4;
2927
2928 /* 3D_Structure_X */
2929 switch (db[8 + offset + i] & 0x0f) {
2930 case 0:
2931 newflag = DRM_MODE_FLAG_3D_FRAME_PACKING;
2932 break;
2933 case 6:
2934 newflag = DRM_MODE_FLAG_3D_TOP_AND_BOTTOM;
2935 break;
2936 case 8:
2937 /* 3D_Detail_X */
2938 if ((db[9 + offset + i] >> 4) == 1)
2939 newflag = DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF;
2940 break;
2941 }
2942
2943 if (newflag != 0) {
2944 newmode = drm_display_mode_from_vic_index(connector,
2945 video_db,
2946 video_len,
2947 vic_index);
2948
2949 if (newmode) {
2950 newmode->flags |= newflag;
2951 drm_mode_probed_add(connector, newmode);
2952 modes++;
2953 }
2954 }
2955
2956 if (detail_present)
2957 i++;
2958 }
2959
2960 out:
2961 return modes;
2962 }
2963
2964 static int
2965 cea_db_payload_len(const u8 *db)
2966 {
2967 return db[0] & 0x1f;
2968 }
2969
2970 static int
2971 cea_db_tag(const u8 *db)
2972 {
2973 return db[0] >> 5;
2974 }
2975
2976 static int
2977 cea_revision(const u8 *cea)
2978 {
2979 return cea[1];
2980 }
2981
2982 static int
2983 cea_db_offsets(const u8 *cea, int *start, int *end)
2984 {
2985 /* Data block offset in CEA extension block */
2986 *start = 4;
2987 *end = cea[2];
2988 if (*end == 0)
2989 *end = 127;
2990 if (*end < 4 || *end > 127)
2991 return -ERANGE;
2992 return 0;
2993 }
2994
2995 static bool cea_db_is_hdmi_vsdb(const u8 *db)
2996 {
2997 int hdmi_id;
2998
2999 if (cea_db_tag(db) != VENDOR_BLOCK)
3000 return false;
3001
3002 if (cea_db_payload_len(db) < 5)
3003 return false;
3004
3005 hdmi_id = db[1] | (db[2] << 8) | (db[3] << 16);
3006
3007 return hdmi_id == HDMI_IEEE_OUI;
3008 }
3009
3010 #define for_each_cea_db(cea, i, start, end) \
3011 for ((i) = (start); (i) < (end) && (i) + cea_db_payload_len(&(cea)[(i)]) < (end); (i) += cea_db_payload_len(&(cea)[(i)]) + 1)
3012
3013 static int
3014 add_cea_modes(struct drm_connector *connector, struct edid *edid)
3015 {
3016 const u8 *cea = drm_find_cea_extension(edid);
3017 const u8 *db, *hdmi = NULL, *video = NULL;
3018 u8 dbl, hdmi_len, video_len = 0;
3019 int modes = 0;
3020
3021 if (cea && cea_revision(cea) >= 3) {
3022 int i, start, end;
3023
3024 if (cea_db_offsets(cea, &start, &end))
3025 return 0;
3026
3027 for_each_cea_db(cea, i, start, end) {
3028 db = &cea[i];
3029 dbl = cea_db_payload_len(db);
3030
3031 if (cea_db_tag(db) == VIDEO_BLOCK) {
3032 video = db + 1;
3033 video_len = dbl;
3034 modes += do_cea_modes(connector, video, dbl);
3035 }
3036 else if (cea_db_is_hdmi_vsdb(db)) {
3037 hdmi = db;
3038 hdmi_len = dbl;
3039 }
3040 }
3041 }
3042
3043 /*
3044 * We parse the HDMI VSDB after having added the cea modes as we will
3045 * be patching their flags when the sink supports stereo 3D.
3046 */
3047 if (hdmi)
3048 modes += do_hdmi_vsdb_modes(connector, hdmi, hdmi_len, video,
3049 video_len);
3050
3051 return modes;
3052 }
3053
3054 static void
3055 parse_hdmi_vsdb(struct drm_connector *connector, const u8 *db)
3056 {
3057 u8 len = cea_db_payload_len(db);
3058
3059 if (len >= 6) {
3060 connector->eld[5] |= (db[6] >> 7) << 1; /* Supports_AI */
3061 connector->dvi_dual = db[6] & 1;
3062 }
3063 if (len >= 7)
3064 connector->max_tmds_clock = db[7] * 5;
3065 if (len >= 8) {
3066 connector->latency_present[0] = db[8] >> 7;
3067 connector->latency_present[1] = (db[8] >> 6) & 1;
3068 }
3069 if (len >= 9)
3070 connector->video_latency[0] = db[9];
3071 if (len >= 10)
3072 connector->audio_latency[0] = db[10];
3073 if (len >= 11)
3074 connector->video_latency[1] = db[11];
3075 if (len >= 12)
3076 connector->audio_latency[1] = db[12];
3077
3078 DRM_DEBUG_KMS("HDMI: DVI dual %d, "
3079 "max TMDS clock %d, "
3080 "latency present %d %d, "
3081 "video latency %d %d, "
3082 "audio latency %d %d\n",
3083 connector->dvi_dual,
3084 connector->max_tmds_clock,
3085 (int) connector->latency_present[0],
3086 (int) connector->latency_present[1],
3087 connector->video_latency[0],
3088 connector->video_latency[1],
3089 connector->audio_latency[0],
3090 connector->audio_latency[1]);
3091 }
3092
3093 static void
3094 monitor_name(struct detailed_timing *t, void *data)
3095 {
3096 if (t->data.other_data.type == EDID_DETAIL_MONITOR_NAME)
3097 *(u8 **)data = t->data.other_data.data.str.str;
3098 }
3099
3100 /**
3101 * drm_edid_to_eld - build ELD from EDID
3102 * @connector: connector corresponding to the HDMI/DP sink
3103 * @edid: EDID to parse
3104 *
3105 * Fill the ELD (EDID-Like Data) buffer for passing to the audio driver. The
3106 * Conn_Type, HDCP and Port_ID ELD fields are left for the graphics driver to
3107 * fill in.
3108 */
3109 void drm_edid_to_eld(struct drm_connector *connector, struct edid *edid)
3110 {
3111 uint8_t *eld = connector->eld;
3112 u8 *cea;
3113 u8 *name;
3114 u8 *db;
3115 int sad_count = 0;
3116 int mnl;
3117 int dbl;
3118
3119 memset(eld, 0, sizeof(connector->eld));
3120
3121 cea = drm_find_cea_extension(edid);
3122 if (!cea) {
3123 DRM_DEBUG_KMS("ELD: no CEA Extension found\n");
3124 return;
3125 }
3126
3127 name = NULL;
3128 drm_for_each_detailed_block((u8 *)edid, monitor_name, &name);
3129 for (mnl = 0; name && mnl < 13; mnl++) {
3130 if (name[mnl] == 0x0a)
3131 break;
3132 eld[20 + mnl] = name[mnl];
3133 }
3134 eld[4] = (cea[1] << 5) | mnl;
3135 DRM_DEBUG_KMS("ELD monitor %s\n", eld + 20);
3136
3137 eld[0] = 2 << 3; /* ELD version: 2 */
3138
3139 eld[16] = edid->mfg_id[0];
3140 eld[17] = edid->mfg_id[1];
3141 eld[18] = edid->prod_code[0];
3142 eld[19] = edid->prod_code[1];
3143
3144 if (cea_revision(cea) >= 3) {
3145 int i, start, end;
3146
3147 if (cea_db_offsets(cea, &start, &end)) {
3148 start = 0;
3149 end = 0;
3150 }
3151
3152 for_each_cea_db(cea, i, start, end) {
3153 db = &cea[i];
3154 dbl = cea_db_payload_len(db);
3155
3156 switch (cea_db_tag(db)) {
3157 case AUDIO_BLOCK:
3158 /* Audio Data Block, contains SADs */
3159 sad_count = dbl / 3;
3160 if (dbl >= 1)
3161 memcpy(eld + 20 + mnl, &db[1], dbl);
3162 break;
3163 case SPEAKER_BLOCK:
3164 /* Speaker Allocation Data Block */
3165 if (dbl >= 1)
3166 eld[7] = db[1];
3167 break;
3168 case VENDOR_BLOCK:
3169 /* HDMI Vendor-Specific Data Block */
3170 if (cea_db_is_hdmi_vsdb(db))
3171 parse_hdmi_vsdb(connector, db);
3172 break;
3173 default:
3174 break;
3175 }
3176 }
3177 }
3178 eld[5] |= sad_count << 4;
3179
3180 eld[DRM_ELD_BASELINE_ELD_LEN] =
3181 DIV_ROUND_UP(drm_eld_calc_baseline_block_size(eld), 4);
3182
3183 DRM_DEBUG_KMS("ELD size %d, SAD count %d\n",
3184 drm_eld_size(eld), sad_count);
3185 }
3186 EXPORT_SYMBOL(drm_edid_to_eld);
3187
3188 /**
3189 * drm_edid_to_sad - extracts SADs from EDID
3190 * @edid: EDID to parse
3191 * @sads: pointer that will be set to the extracted SADs
3192 *
3193 * Looks for CEA EDID block and extracts SADs (Short Audio Descriptors) from it.
3194 *
3195 * Note: The returned pointer needs to be freed using kfree().
3196 *
3197 * Return: The number of found SADs or negative number on error.
3198 */
3199 int drm_edid_to_sad(struct edid *edid, struct cea_sad **sads)
3200 {
3201 int count = 0;
3202 int i, start, end, dbl;
3203 u8 *cea;
3204
3205 cea = drm_find_cea_extension(edid);
3206 if (!cea) {
3207 DRM_DEBUG_KMS("SAD: no CEA Extension found\n");
3208 return -ENOENT;
3209 }
3210
3211 if (cea_revision(cea) < 3) {
3212 DRM_DEBUG_KMS("SAD: wrong CEA revision\n");
3213 return -ENOTSUPP;
3214 }
3215
3216 if (cea_db_offsets(cea, &start, &end)) {
3217 DRM_DEBUG_KMS("SAD: invalid data block offsets\n");
3218 return -EPROTO;
3219 }
3220
3221 for_each_cea_db(cea, i, start, end) {
3222 u8 *db = &cea[i];
3223
3224 if (cea_db_tag(db) == AUDIO_BLOCK) {
3225 int j;
3226 dbl = cea_db_payload_len(db);
3227
3228 count = dbl / 3; /* SAD is 3B */
3229 *sads = kcalloc(count, sizeof(**sads), GFP_KERNEL);
3230 if (!*sads)
3231 return -ENOMEM;
3232 for (j = 0; j < count; j++) {
3233 u8 *sad = &db[1 + j * 3];
3234
3235 (*sads)[j].format = (sad[0] & 0x78) >> 3;
3236 (*sads)[j].channels = sad[0] & 0x7;
3237 (*sads)[j].freq = sad[1] & 0x7F;
3238 (*sads)[j].byte2 = sad[2];
3239 }
3240 break;
3241 }
3242 }
3243
3244 return count;
3245 }
3246 EXPORT_SYMBOL(drm_edid_to_sad);
3247
3248 /**
3249 * drm_edid_to_speaker_allocation - extracts Speaker Allocation Data Blocks from EDID
3250 * @edid: EDID to parse
3251 * @sadb: pointer to the speaker block
3252 *
3253 * Looks for CEA EDID block and extracts the Speaker Allocation Data Block from it.
3254 *
3255 * Note: The returned pointer needs to be freed using kfree().
3256 *
3257 * Return: The number of found Speaker Allocation Blocks or negative number on
3258 * error.
3259 */
3260 int drm_edid_to_speaker_allocation(struct edid *edid, u8 **sadb)
3261 {
3262 int count = 0;
3263 int i, start, end, dbl;
3264 const u8 *cea;
3265
3266 cea = drm_find_cea_extension(edid);
3267 if (!cea) {
3268 DRM_DEBUG_KMS("SAD: no CEA Extension found\n");
3269 return -ENOENT;
3270 }
3271
3272 if (cea_revision(cea) < 3) {
3273 DRM_DEBUG_KMS("SAD: wrong CEA revision\n");
3274 return -ENOTSUPP;
3275 }
3276
3277 if (cea_db_offsets(cea, &start, &end)) {
3278 DRM_DEBUG_KMS("SAD: invalid data block offsets\n");
3279 return -EPROTO;
3280 }
3281
3282 for_each_cea_db(cea, i, start, end) {
3283 const u8 *db = &cea[i];
3284
3285 if (cea_db_tag(db) == SPEAKER_BLOCK) {
3286 dbl = cea_db_payload_len(db);
3287
3288 /* Speaker Allocation Data Block */
3289 if (dbl == 3) {
3290 *sadb = kmemdup(&db[1], dbl, GFP_KERNEL);
3291 if (!*sadb)
3292 return -ENOMEM;
3293 count = dbl;
3294 break;
3295 }
3296 }
3297 }
3298
3299 return count;
3300 }
3301 EXPORT_SYMBOL(drm_edid_to_speaker_allocation);
3302
3303 /**
3304 * drm_av_sync_delay - compute the HDMI/DP sink audio-video sync delay
3305 * @connector: connector associated with the HDMI/DP sink
3306 * @mode: the display mode
3307 *
3308 * Return: The HDMI/DP sink's audio-video sync delay in milliseconds or 0 if
3309 * the sink doesn't support audio or video.
3310 */
3311 int drm_av_sync_delay(struct drm_connector *connector,
3312 struct drm_display_mode *mode)
3313 {
3314 int i = !!(mode->flags & DRM_MODE_FLAG_INTERLACE);
3315 int a, v;
3316
3317 if (!connector->latency_present[0])
3318 return 0;
3319 if (!connector->latency_present[1])
3320 i = 0;
3321
3322 a = connector->audio_latency[i];
3323 v = connector->video_latency[i];
3324
3325 /*
3326 * HDMI/DP sink doesn't support audio or video?
3327 */
3328 if (a == 255 || v == 255)
3329 return 0;
3330
3331 /*
3332 * Convert raw EDID values to millisecond.
3333 * Treat unknown latency as 0ms.
3334 */
3335 if (a)
3336 a = min(2 * (a - 1), 500);
3337 if (v)
3338 v = min(2 * (v - 1), 500);
3339
3340 return max(v - a, 0);
3341 }
3342 EXPORT_SYMBOL(drm_av_sync_delay);
3343
3344 /**
3345 * drm_select_eld - select one ELD from multiple HDMI/DP sinks
3346 * @encoder: the encoder just changed display mode
3347 * @mode: the adjusted display mode
3348 *
3349 * It's possible for one encoder to be associated with multiple HDMI/DP sinks.
3350 * The policy is now hard coded to simply use the first HDMI/DP sink's ELD.
3351 *
3352 * Return: The connector associated with the first HDMI/DP sink that has ELD
3353 * attached to it.
3354 */
3355 struct drm_connector *drm_select_eld(struct drm_encoder *encoder,
3356 struct drm_display_mode *mode)
3357 {
3358 struct drm_connector *connector;
3359 struct drm_device *dev = encoder->dev;
3360
3361 WARN_ON(!mutex_is_locked(&dev->mode_config.mutex));
3362 WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex));
3363
3364 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
3365 if (connector->encoder == encoder && connector->eld[0])
3366 return connector;
3367
3368 return NULL;
3369 }
3370 EXPORT_SYMBOL(drm_select_eld);
3371
3372 /**
3373 * drm_detect_hdmi_monitor - detect whether monitor is HDMI
3374 * @edid: monitor EDID information
3375 *
3376 * Parse the CEA extension according to CEA-861-B.
3377 *
3378 * Return: True if the monitor is HDMI, false if not or unknown.
3379 */
3380 bool drm_detect_hdmi_monitor(struct edid *edid)
3381 {
3382 u8 *edid_ext;
3383 int i;
3384 int start_offset, end_offset;
3385
3386 edid_ext = drm_find_cea_extension(edid);
3387 if (!edid_ext)
3388 return false;
3389
3390 if (cea_db_offsets(edid_ext, &start_offset, &end_offset))
3391 return false;
3392
3393 /*
3394 * Because HDMI identifier is in Vendor Specific Block,
3395 * search it from all data blocks of CEA extension.
3396 */
3397 for_each_cea_db(edid_ext, i, start_offset, end_offset) {
3398 if (cea_db_is_hdmi_vsdb(&edid_ext[i]))
3399 return true;
3400 }
3401
3402 return false;
3403 }
3404 EXPORT_SYMBOL(drm_detect_hdmi_monitor);
3405
3406 /**
3407 * drm_detect_monitor_audio - check monitor audio capability
3408 * @edid: EDID block to scan
3409 *
3410 * Monitor should have CEA extension block.
3411 * If monitor has 'basic audio', but no CEA audio blocks, it's 'basic
3412 * audio' only. If there is any audio extension block and supported
3413 * audio format, assume at least 'basic audio' support, even if 'basic
3414 * audio' is not defined in EDID.
3415 *
3416 * Return: True if the monitor supports audio, false otherwise.
3417 */
3418 bool drm_detect_monitor_audio(struct edid *edid)
3419 {
3420 u8 *edid_ext;
3421 int i, j;
3422 bool has_audio = false;
3423 int start_offset, end_offset;
3424
3425 edid_ext = drm_find_cea_extension(edid);
3426 if (!edid_ext)
3427 goto end;
3428
3429 has_audio = ((edid_ext[3] & EDID_BASIC_AUDIO) != 0);
3430
3431 if (has_audio) {
3432 DRM_DEBUG_KMS("Monitor has basic audio support\n");
3433 goto end;
3434 }
3435
3436 if (cea_db_offsets(edid_ext, &start_offset, &end_offset))
3437 goto end;
3438
3439 for_each_cea_db(edid_ext, i, start_offset, end_offset) {
3440 if (cea_db_tag(&edid_ext[i]) == AUDIO_BLOCK) {
3441 has_audio = true;
3442 for (j = 1; j < cea_db_payload_len(&edid_ext[i]) + 1; j += 3)
3443 DRM_DEBUG_KMS("CEA audio format %d\n",
3444 (edid_ext[i + j] >> 3) & 0xf);
3445 goto end;
3446 }
3447 }
3448 end:
3449 return has_audio;
3450 }
3451 EXPORT_SYMBOL(drm_detect_monitor_audio);
3452
3453 /**
3454 * drm_rgb_quant_range_selectable - is RGB quantization range selectable?
3455 * @edid: EDID block to scan
3456 *
3457 * Check whether the monitor reports the RGB quantization range selection
3458 * as supported. The AVI infoframe can then be used to inform the monitor
3459 * which quantization range (full or limited) is used.
3460 *
3461 * Return: True if the RGB quantization range is selectable, false otherwise.
3462 */
3463 bool drm_rgb_quant_range_selectable(struct edid *edid)
3464 {
3465 u8 *edid_ext;
3466 int i, start, end;
3467
3468 edid_ext = drm_find_cea_extension(edid);
3469 if (!edid_ext)
3470 return false;
3471
3472 if (cea_db_offsets(edid_ext, &start, &end))
3473 return false;
3474
3475 for_each_cea_db(edid_ext, i, start, end) {
3476 if (cea_db_tag(&edid_ext[i]) == VIDEO_CAPABILITY_BLOCK &&
3477 cea_db_payload_len(&edid_ext[i]) == 2) {
3478 DRM_DEBUG_KMS("CEA VCDB 0x%02x\n", edid_ext[i + 2]);
3479 return edid_ext[i + 2] & EDID_CEA_VCDB_QS;
3480 }
3481 }
3482
3483 return false;
3484 }
3485 EXPORT_SYMBOL(drm_rgb_quant_range_selectable);
3486
3487 /**
3488 * drm_assign_hdmi_deep_color_info - detect whether monitor supports
3489 * hdmi deep color modes and update drm_display_info if so.
3490 * @edid: monitor EDID information
3491 * @info: Updated with maximum supported deep color bpc and color format
3492 * if deep color supported.
3493 * @connector: DRM connector, used only for debug output
3494 *
3495 * Parse the CEA extension according to CEA-861-B.
3496 * Return true if HDMI deep color supported, false if not or unknown.
3497 */
3498 static bool drm_assign_hdmi_deep_color_info(struct edid *edid,
3499 struct drm_display_info *info,
3500 struct drm_connector *connector)
3501 {
3502 u8 *edid_ext, *hdmi;
3503 int i;
3504 int start_offset, end_offset;
3505 unsigned int dc_bpc = 0;
3506
3507 edid_ext = drm_find_cea_extension(edid);
3508 if (!edid_ext)
3509 return false;
3510
3511 if (cea_db_offsets(edid_ext, &start_offset, &end_offset))
3512 return false;
3513
3514 /*
3515 * Because HDMI identifier is in Vendor Specific Block,
3516 * search it from all data blocks of CEA extension.
3517 */
3518 for_each_cea_db(edid_ext, i, start_offset, end_offset) {
3519 if (cea_db_is_hdmi_vsdb(&edid_ext[i])) {
3520 /* HDMI supports at least 8 bpc */
3521 info->bpc = 8;
3522
3523 hdmi = &edid_ext[i];
3524 if (cea_db_payload_len(hdmi) < 6)
3525 return false;
3526
3527 if (hdmi[6] & DRM_EDID_HDMI_DC_30) {
3528 dc_bpc = 10;
3529 info->edid_hdmi_dc_modes |= DRM_EDID_HDMI_DC_30;
3530 DRM_DEBUG("%s: HDMI sink does deep color 30.\n",
3531 connector->name);
3532 }
3533
3534 if (hdmi[6] & DRM_EDID_HDMI_DC_36) {
3535 dc_bpc = 12;
3536 info->edid_hdmi_dc_modes |= DRM_EDID_HDMI_DC_36;
3537 DRM_DEBUG("%s: HDMI sink does deep color 36.\n",
3538 connector->name);
3539 }
3540
3541 if (hdmi[6] & DRM_EDID_HDMI_DC_48) {
3542 dc_bpc = 16;
3543 info->edid_hdmi_dc_modes |= DRM_EDID_HDMI_DC_48;
3544 DRM_DEBUG("%s: HDMI sink does deep color 48.\n",
3545 connector->name);
3546 }
3547
3548 if (dc_bpc > 0) {
3549 DRM_DEBUG("%s: Assigning HDMI sink color depth as %d bpc.\n",
3550 connector->name, dc_bpc);
3551 info->bpc = dc_bpc;
3552
3553 /*
3554 * Deep color support mandates RGB444 support for all video
3555 * modes and forbids YCRCB422 support for all video modes per
3556 * HDMI 1.3 spec.
3557 */
3558 info->color_formats = DRM_COLOR_FORMAT_RGB444;
3559
3560 /* YCRCB444 is optional according to spec. */
3561 if (hdmi[6] & DRM_EDID_HDMI_DC_Y444) {
3562 info->color_formats |= DRM_COLOR_FORMAT_YCRCB444;
3563 DRM_DEBUG("%s: HDMI sink does YCRCB444 in deep color.\n",
3564 connector->name);
3565 }
3566
3567 /*
3568 * Spec says that if any deep color mode is supported at all,
3569 * then deep color 36 bit must be supported.
3570 */
3571 if (!(hdmi[6] & DRM_EDID_HDMI_DC_36)) {
3572 DRM_DEBUG("%s: HDMI sink should do DC_36, but does not!\n",
3573 connector->name);
3574 }
3575
3576 return true;
3577 }
3578 else {
3579 DRM_DEBUG("%s: No deep color support on this HDMI sink.\n",
3580 connector->name);
3581 }
3582 }
3583 }
3584
3585 return false;
3586 }
3587
3588 /**
3589 * drm_add_display_info - pull display info out if present
3590 * @edid: EDID data
3591 * @info: display info (attached to connector)
3592 * @connector: connector whose edid is used to build display info
3593 *
3594 * Grab any available display info and stuff it into the drm_display_info
3595 * structure that's part of the connector. Useful for tracking bpp and
3596 * color spaces.
3597 */
3598 static void drm_add_display_info(struct edid *edid,
3599 struct drm_display_info *info,
3600 struct drm_connector *connector)
3601 {
3602 u8 *edid_ext;
3603
3604 info->width_mm = edid->width_cm * 10;
3605 info->height_mm = edid->height_cm * 10;
3606
3607 /* driver figures it out in this case */
3608 info->bpc = 0;
3609 info->color_formats = 0;
3610
3611 if (edid->revision < 3)
3612 return;
3613
3614 if (!(edid->input & DRM_EDID_INPUT_DIGITAL))
3615 return;
3616
3617 /* Get data from CEA blocks if present */
3618 edid_ext = drm_find_cea_extension(edid);
3619 if (edid_ext) {
3620 info->cea_rev = edid_ext[1];
3621
3622 /* The existence of a CEA block should imply RGB support */
3623 info->color_formats = DRM_COLOR_FORMAT_RGB444;
3624 if (edid_ext[3] & EDID_CEA_YCRCB444)
3625 info->color_formats |= DRM_COLOR_FORMAT_YCRCB444;
3626 if (edid_ext[3] & EDID_CEA_YCRCB422)
3627 info->color_formats |= DRM_COLOR_FORMAT_YCRCB422;
3628 }
3629
3630 /* HDMI deep color modes supported? Assign to info, if so */
3631 drm_assign_hdmi_deep_color_info(edid, info, connector);
3632
3633 /* Only defined for 1.4 with digital displays */
3634 if (edid->revision < 4)
3635 return;
3636
3637 switch (edid->input & DRM_EDID_DIGITAL_DEPTH_MASK) {
3638 case DRM_EDID_DIGITAL_DEPTH_6:
3639 info->bpc = 6;
3640 break;
3641 case DRM_EDID_DIGITAL_DEPTH_8:
3642 info->bpc = 8;
3643 break;
3644 case DRM_EDID_DIGITAL_DEPTH_10:
3645 info->bpc = 10;
3646 break;
3647 case DRM_EDID_DIGITAL_DEPTH_12:
3648 info->bpc = 12;
3649 break;
3650 case DRM_EDID_DIGITAL_DEPTH_14:
3651 info->bpc = 14;
3652 break;
3653 case DRM_EDID_DIGITAL_DEPTH_16:
3654 info->bpc = 16;
3655 break;
3656 case DRM_EDID_DIGITAL_DEPTH_UNDEF:
3657 default:
3658 info->bpc = 0;
3659 break;
3660 }
3661
3662 DRM_DEBUG("%s: Assigning EDID-1.4 digital sink color depth as %d bpc.\n",
3663 connector->name, info->bpc);
3664
3665 info->color_formats |= DRM_COLOR_FORMAT_RGB444;
3666 if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB444)
3667 info->color_formats |= DRM_COLOR_FORMAT_YCRCB444;
3668 if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB422)
3669 info->color_formats |= DRM_COLOR_FORMAT_YCRCB422;
3670 }
3671
3672 /**
3673 * drm_add_edid_modes - add modes from EDID data, if available
3674 * @connector: connector we're probing
3675 * @edid: EDID data
3676 *
3677 * Add the specified modes to the connector's mode list.
3678 *
3679 * Return: The number of modes added or 0 if we couldn't find any.
3680 */
3681 int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)
3682 {
3683 int num_modes = 0;
3684 u32 quirks;
3685
3686 if (edid == NULL) {
3687 return 0;
3688 }
3689 if (!drm_edid_is_valid(edid)) {
3690 dev_warn(connector->dev->dev, "%s: EDID invalid.\n",
3691 connector->name);
3692 return 0;
3693 }
3694
3695 quirks = edid_get_quirks(edid);
3696
3697 /*
3698 * EDID spec says modes should be preferred in this order:
3699 * - preferred detailed mode
3700 * - other detailed modes from base block
3701 * - detailed modes from extension blocks
3702 * - CVT 3-byte code modes
3703 * - standard timing codes
3704 * - established timing codes
3705 * - modes inferred from GTF or CVT range information
3706 *
3707 * We get this pretty much right.
3708 *
3709 * XXX order for additional mode types in extension blocks?
3710 */
3711 num_modes += add_detailed_modes(connector, edid, quirks);
3712 num_modes += add_cvt_modes(connector, edid);
3713 num_modes += add_standard_modes(connector, edid);
3714 num_modes += add_established_modes(connector, edid);
3715 if (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF)
3716 num_modes += add_inferred_modes(connector, edid);
3717 num_modes += add_cea_modes(connector, edid);
3718 num_modes += add_alternate_cea_modes(connector, edid);
3719
3720 if (quirks & (EDID_QUIRK_PREFER_LARGE_60 | EDID_QUIRK_PREFER_LARGE_75))
3721 edid_fixup_preferred(connector, quirks);
3722
3723 drm_add_display_info(edid, &connector->display_info, connector);
3724
3725 if (quirks & EDID_QUIRK_FORCE_8BPC)
3726 connector->display_info.bpc = 8;
3727
3728 if (quirks & EDID_QUIRK_FORCE_12BPC)
3729 connector->display_info.bpc = 12;
3730
3731 return num_modes;
3732 }
3733 EXPORT_SYMBOL(drm_add_edid_modes);
3734
3735 /**
3736 * drm_add_modes_noedid - add modes for the connectors without EDID
3737 * @connector: connector we're probing
3738 * @hdisplay: the horizontal display limit
3739 * @vdisplay: the vertical display limit
3740 *
3741 * Add the specified modes to the connector's mode list. Only when the
3742 * hdisplay/vdisplay is not beyond the given limit, it will be added.
3743 *
3744 * Return: The number of modes added or 0 if we couldn't find any.
3745 */
3746 int drm_add_modes_noedid(struct drm_connector *connector,
3747 int hdisplay, int vdisplay)
3748 {
3749 int i, count, num_modes = 0;
3750 struct drm_display_mode *mode;
3751 struct drm_device *dev = connector->dev;
3752
3753 count = sizeof(drm_dmt_modes) / sizeof(struct drm_display_mode);
3754 if (hdisplay < 0)
3755 hdisplay = 0;
3756 if (vdisplay < 0)
3757 vdisplay = 0;
3758
3759 for (i = 0; i < count; i++) {
3760 const struct drm_display_mode *ptr = &drm_dmt_modes[i];
3761 if (hdisplay && vdisplay) {
3762 /*
3763 * Only when two are valid, they will be used to check
3764 * whether the mode should be added to the mode list of
3765 * the connector.
3766 */
3767 if (ptr->hdisplay > hdisplay ||
3768 ptr->vdisplay > vdisplay)
3769 continue;
3770 }
3771 if (drm_mode_vrefresh(ptr) > 61)
3772 continue;
3773 mode = drm_mode_duplicate(dev, ptr);
3774 if (mode) {
3775 drm_mode_probed_add(connector, mode);
3776 num_modes++;
3777 }
3778 }
3779 return num_modes;
3780 }
3781 EXPORT_SYMBOL(drm_add_modes_noedid);
3782
3783 /**
3784 * drm_set_preferred_mode - Sets the preferred mode of a connector
3785 * @connector: connector whose mode list should be processed
3786 * @hpref: horizontal resolution of preferred mode
3787 * @vpref: vertical resolution of preferred mode
3788 *
3789 * Marks a mode as preferred if it matches the resolution specified by @hpref
3790 * and @vpref.
3791 */
3792 void drm_set_preferred_mode(struct drm_connector *connector,
3793 int hpref, int vpref)
3794 {
3795 struct drm_display_mode *mode;
3796
3797 list_for_each_entry(mode, &connector->probed_modes, head) {
3798 if (mode->hdisplay == hpref &&
3799 mode->vdisplay == vpref)
3800 mode->type |= DRM_MODE_TYPE_PREFERRED;
3801 }
3802 }
3803 EXPORT_SYMBOL(drm_set_preferred_mode);
3804
3805 /**
3806 * drm_hdmi_avi_infoframe_from_display_mode() - fill an HDMI AVI infoframe with
3807 * data from a DRM display mode
3808 * @frame: HDMI AVI infoframe
3809 * @mode: DRM display mode
3810 *
3811 * Return: 0 on success or a negative error code on failure.
3812 */
3813 int
3814 drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,
3815 const struct drm_display_mode *mode)
3816 {
3817 int err;
3818
3819 if (!frame || !mode)
3820 return -EINVAL;
3821
3822 err = hdmi_avi_infoframe_init(frame);
3823 if (err < 0)
3824 return err;
3825
3826 if (mode->flags & DRM_MODE_FLAG_DBLCLK)
3827 frame->pixel_repeat = 1;
3828
3829 frame->video_code = drm_match_cea_mode(mode);
3830
3831 frame->picture_aspect = HDMI_PICTURE_ASPECT_NONE;
3832
3833 /*
3834 * Populate picture aspect ratio from either
3835 * user input (if specified) or from the CEA mode list.
3836 */
3837 if (mode->picture_aspect_ratio == HDMI_PICTURE_ASPECT_4_3 ||
3838 mode->picture_aspect_ratio == HDMI_PICTURE_ASPECT_16_9)
3839 frame->picture_aspect = mode->picture_aspect_ratio;
3840 else if (frame->video_code > 0)
3841 frame->picture_aspect = drm_get_cea_aspect_ratio(
3842 frame->video_code);
3843
3844 frame->active_aspect = HDMI_ACTIVE_ASPECT_PICTURE;
3845 frame->scan_mode = HDMI_SCAN_MODE_UNDERSCAN;
3846
3847 return 0;
3848 }
3849 EXPORT_SYMBOL(drm_hdmi_avi_infoframe_from_display_mode);
3850
3851 static enum hdmi_3d_structure
3852 s3d_structure_from_display_mode(const struct drm_display_mode *mode)
3853 {
3854 u32 layout = mode->flags & DRM_MODE_FLAG_3D_MASK;
3855
3856 switch (layout) {
3857 case DRM_MODE_FLAG_3D_FRAME_PACKING:
3858 return HDMI_3D_STRUCTURE_FRAME_PACKING;
3859 case DRM_MODE_FLAG_3D_FIELD_ALTERNATIVE:
3860 return HDMI_3D_STRUCTURE_FIELD_ALTERNATIVE;
3861 case DRM_MODE_FLAG_3D_LINE_ALTERNATIVE:
3862 return HDMI_3D_STRUCTURE_LINE_ALTERNATIVE;
3863 case DRM_MODE_FLAG_3D_SIDE_BY_SIDE_FULL:
3864 return HDMI_3D_STRUCTURE_SIDE_BY_SIDE_FULL;
3865 case DRM_MODE_FLAG_3D_L_DEPTH:
3866 return HDMI_3D_STRUCTURE_L_DEPTH;
3867 case DRM_MODE_FLAG_3D_L_DEPTH_GFX_GFX_DEPTH:
3868 return HDMI_3D_STRUCTURE_L_DEPTH_GFX_GFX_DEPTH;
3869 case DRM_MODE_FLAG_3D_TOP_AND_BOTTOM:
3870 return HDMI_3D_STRUCTURE_TOP_AND_BOTTOM;
3871 case DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF:
3872 return HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF;
3873 default:
3874 return HDMI_3D_STRUCTURE_INVALID;
3875 }
3876 }
3877
3878 /**
3879 * drm_hdmi_vendor_infoframe_from_display_mode() - fill an HDMI infoframe with
3880 * data from a DRM display mode
3881 * @frame: HDMI vendor infoframe
3882 * @mode: DRM display mode
3883 *
3884 * Note that there's is a need to send HDMI vendor infoframes only when using a
3885 * 4k or stereoscopic 3D mode. So when giving any other mode as input this
3886 * function will return -EINVAL, error that can be safely ignored.
3887 *
3888 * Return: 0 on success or a negative error code on failure.
3889 */
3890 int
3891 drm_hdmi_vendor_infoframe_from_display_mode(struct hdmi_vendor_infoframe *frame,
3892 const struct drm_display_mode *mode)
3893 {
3894 int err;
3895 u32 s3d_flags;
3896 u8 vic;
3897
3898 if (!frame || !mode)
3899 return -EINVAL;
3900
3901 vic = drm_match_hdmi_mode(mode);
3902 s3d_flags = mode->flags & DRM_MODE_FLAG_3D_MASK;
3903
3904 if (!vic && !s3d_flags)
3905 return -EINVAL;
3906
3907 if (vic && s3d_flags)
3908 return -EINVAL;
3909
3910 err = hdmi_vendor_infoframe_init(frame);
3911 if (err < 0)
3912 return err;
3913
3914 if (vic)
3915 frame->vic = vic;
3916 else
3917 frame->s3d_struct = s3d_structure_from_display_mode(mode);
3918
3919 return 0;
3920 }
3921 EXPORT_SYMBOL(drm_hdmi_vendor_infoframe_from_display_mode);
3922
3923 static int drm_parse_display_id(struct drm_connector *connector,
3924 u8 *displayid, int length,
3925 bool is_edid_extension)
3926 {
3927 /* if this is an EDID extension the first byte will be 0x70 */
3928 int idx = 0;
3929 struct displayid_hdr *base;
3930 struct displayid_block *block;
3931 u8 csum = 0;
3932 int i;
3933
3934 if (is_edid_extension)
3935 idx = 1;
3936
3937 base = (struct displayid_hdr *)&displayid[idx];
3938
3939 DRM_DEBUG_KMS("base revision 0x%x, length %d, %d %d\n",
3940 base->rev, base->bytes, base->prod_id, base->ext_count);
3941
3942 if (base->bytes + 5 > length - idx)
3943 return -EINVAL;
3944
3945 for (i = idx; i <= base->bytes + 5; i++) {
3946 csum += displayid[i];
3947 }
3948 if (csum) {
3949 DRM_ERROR("DisplayID checksum invalid, remainder is %d\n", csum);
3950 return -EINVAL;
3951 }
3952
3953 block = (struct displayid_block *)&displayid[idx + 4];
3954 DRM_DEBUG_KMS("block id %d, rev %d, len %d\n",
3955 block->tag, block->rev, block->num_bytes);
3956
3957 switch (block->tag) {
3958 case DATA_BLOCK_TILED_DISPLAY: {
3959 struct displayid_tiled_block *tile = (struct displayid_tiled_block *)block;
3960
3961 u16 w, h;
3962 u8 tile_v_loc, tile_h_loc;
3963 u8 num_v_tile, num_h_tile;
3964 struct drm_tile_group *tg;
3965
3966 w = tile->tile_size[0] | tile->tile_size[1] << 8;
3967 h = tile->tile_size[2] | tile->tile_size[3] << 8;
3968
3969 num_v_tile = (tile->topo[0] & 0xf) | (tile->topo[2] & 0x30);
3970 num_h_tile = (tile->topo[0] >> 4) | ((tile->topo[2] >> 2) & 0x30);
3971 tile_v_loc = (tile->topo[1] & 0xf) | ((tile->topo[2] & 0x3) << 4);
3972 tile_h_loc = (tile->topo[1] >> 4) | (((tile->topo[2] >> 2) & 0x3) << 4);
3973
3974 connector->has_tile = true;
3975 if (tile->tile_cap & 0x80)
3976 connector->tile_is_single_monitor = true;
3977
3978 connector->num_h_tile = num_h_tile + 1;
3979 connector->num_v_tile = num_v_tile + 1;
3980 connector->tile_h_loc = tile_h_loc;
3981 connector->tile_v_loc = tile_v_loc;
3982 connector->tile_h_size = w + 1;
3983 connector->tile_v_size = h + 1;
3984
3985 DRM_DEBUG_KMS("tile cap 0x%x\n", tile->tile_cap);
3986 DRM_DEBUG_KMS("tile_size %d x %d\n", w + 1, h + 1);
3987 DRM_DEBUG_KMS("topo num tiles %dx%d, location %dx%d\n",
3988 num_h_tile + 1, num_v_tile + 1, tile_h_loc, tile_v_loc);
3989 DRM_DEBUG_KMS("vend %c%c%c\n", tile->topology_id[0], tile->topology_id[1], tile->topology_id[2]);
3990
3991 tg = drm_mode_get_tile_group(connector->dev, tile->topology_id);
3992 if (!tg) {
3993 tg = drm_mode_create_tile_group(connector->dev, tile->topology_id);
3994 }
3995 if (!tg)
3996 return -ENOMEM;
3997
3998 if (connector->tile_group != tg) {
3999 /* if we haven't got a pointer,
4000 take the reference, drop ref to old tile group */
4001 if (connector->tile_group) {
4002 drm_mode_put_tile_group(connector->dev, connector->tile_group);
4003 }
4004 connector->tile_group = tg;
4005 } else
4006 /* if same tile group, then release the ref we just took. */
4007 drm_mode_put_tile_group(connector->dev, tg);
4008 }
4009 break;
4010 default:
4011 printk("unknown displayid tag %d\n", block->tag);
4012 break;
4013 }
4014 return 0;
4015 }
4016
4017 static void drm_get_displayid(struct drm_connector *connector,
4018 struct edid *edid)
4019 {
4020 void *displayid = NULL;
4021 int ret;
4022 connector->has_tile = false;
4023 displayid = drm_find_displayid_extension(edid);
4024 if (!displayid) {
4025 /* drop reference to any tile group we had */
4026 goto out_drop_ref;
4027 }
4028
4029 ret = drm_parse_display_id(connector, displayid, EDID_LENGTH, true);
4030 if (ret < 0)
4031 goto out_drop_ref;
4032 if (!connector->has_tile)
4033 goto out_drop_ref;
4034 return;
4035 out_drop_ref:
4036 if (connector->tile_group) {
4037 drm_mode_put_tile_group(connector->dev, connector->tile_group);
4038 connector->tile_group = NULL;
4039 }
4040 return;
4041 }
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