Version:  2.0.40 2.2.26 2.4.37 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18

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

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