Merge tag 'drm-intel-next-2019-12-23' of git://anongit.freedesktop.org/drm/drm-intel...
[platform/kernel/linux-rpi.git] / drivers / gpu / drm / drm_edid.c
1 /*
2  * Copyright (c) 2006 Luc Verhaegen (quirks list)
3  * Copyright (c) 2007-2008 Intel Corporation
4  *   Jesse Barnes <jesse.barnes@intel.com>
5  * Copyright 2010 Red Hat, Inc.
6  *
7  * DDC probing routines (drm_ddc_read & drm_do_probe_ddc_edid) originally from
8  * FB layer.
9  *   Copyright (C) 2006 Dennis Munsie <dmunsie@cecropia.com>
10  *
11  * Permission is hereby granted, free of charge, to any person obtaining a
12  * copy of this software and associated documentation files (the "Software"),
13  * to deal in the Software without restriction, including without limitation
14  * the rights to use, copy, modify, merge, publish, distribute, sub license,
15  * and/or sell copies of the Software, and to permit persons to whom the
16  * Software is furnished to do so, subject to the following conditions:
17  *
18  * The above copyright notice and this permission notice (including the
19  * next paragraph) shall be included in all copies or substantial portions
20  * of the Software.
21  *
22  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
23  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
24  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
25  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
26  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
27  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
28  * DEALINGS IN THE SOFTWARE.
29  */
30
31 #include <linux/hdmi.h>
32 #include <linux/i2c.h>
33 #include <linux/kernel.h>
34 #include <linux/module.h>
35 #include <linux/slab.h>
36 #include <linux/vga_switcheroo.h>
37
38 #include <drm/drm_displayid.h>
39 #include <drm/drm_drv.h>
40 #include <drm/drm_edid.h>
41 #include <drm/drm_encoder.h>
42 #include <drm/drm_print.h>
43 #include <drm/drm_scdc_helper.h>
44
45 #include "drm_crtc_internal.h"
46
47 #define version_greater(edid, maj, min) \
48         (((edid)->version > (maj)) || \
49          ((edid)->version == (maj) && (edid)->revision > (min)))
50
51 #define EDID_EST_TIMINGS 16
52 #define EDID_STD_TIMINGS 8
53 #define EDID_DETAILED_TIMINGS 4
54
55 /*
56  * EDID blocks out in the wild have a variety of bugs, try to collect
57  * them here (note that userspace may work around broken monitors first,
58  * but fixes should make their way here so that the kernel "just works"
59  * on as many displays as possible).
60  */
61
62 /* First detailed mode wrong, use largest 60Hz mode */
63 #define EDID_QUIRK_PREFER_LARGE_60              (1 << 0)
64 /* Reported 135MHz pixel clock is too high, needs adjustment */
65 #define EDID_QUIRK_135_CLOCK_TOO_HIGH           (1 << 1)
66 /* Prefer the largest mode at 75 Hz */
67 #define EDID_QUIRK_PREFER_LARGE_75              (1 << 2)
68 /* Detail timing is in cm not mm */
69 #define EDID_QUIRK_DETAILED_IN_CM               (1 << 3)
70 /* Detailed timing descriptors have bogus size values, so just take the
71  * maximum size and use that.
72  */
73 #define EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE    (1 << 4)
74 /* use +hsync +vsync for detailed mode */
75 #define EDID_QUIRK_DETAILED_SYNC_PP             (1 << 6)
76 /* Force reduced-blanking timings for detailed modes */
77 #define EDID_QUIRK_FORCE_REDUCED_BLANKING       (1 << 7)
78 /* Force 8bpc */
79 #define EDID_QUIRK_FORCE_8BPC                   (1 << 8)
80 /* Force 12bpc */
81 #define EDID_QUIRK_FORCE_12BPC                  (1 << 9)
82 /* Force 6bpc */
83 #define EDID_QUIRK_FORCE_6BPC                   (1 << 10)
84 /* Force 10bpc */
85 #define EDID_QUIRK_FORCE_10BPC                  (1 << 11)
86 /* Non desktop display (i.e. HMD) */
87 #define EDID_QUIRK_NON_DESKTOP                  (1 << 12)
88
89 struct detailed_mode_closure {
90         struct drm_connector *connector;
91         struct edid *edid;
92         bool preferred;
93         u32 quirks;
94         int modes;
95 };
96
97 #define LEVEL_DMT       0
98 #define LEVEL_GTF       1
99 #define LEVEL_GTF2      2
100 #define LEVEL_CVT       3
101
102 static const struct edid_quirk {
103         char vendor[4];
104         int product_id;
105         u32 quirks;
106 } edid_quirk_list[] = {
107         /* Acer AL1706 */
108         { "ACR", 44358, EDID_QUIRK_PREFER_LARGE_60 },
109         /* Acer F51 */
110         { "API", 0x7602, EDID_QUIRK_PREFER_LARGE_60 },
111
112         /* AEO model 0 reports 8 bpc, but is a 6 bpc panel */
113         { "AEO", 0, EDID_QUIRK_FORCE_6BPC },
114
115         /* BOE model on HP Pavilion 15-n233sl reports 8 bpc, but is a 6 bpc panel */
116         { "BOE", 0x78b, EDID_QUIRK_FORCE_6BPC },
117
118         /* CPT panel of Asus UX303LA reports 8 bpc, but is a 6 bpc panel */
119         { "CPT", 0x17df, EDID_QUIRK_FORCE_6BPC },
120
121         /* SDC panel of Lenovo B50-80 reports 8 bpc, but is a 6 bpc panel */
122         { "SDC", 0x3652, EDID_QUIRK_FORCE_6BPC },
123
124         /* BOE model 0x0771 reports 8 bpc, but is a 6 bpc panel */
125         { "BOE", 0x0771, EDID_QUIRK_FORCE_6BPC },
126
127         /* Belinea 10 15 55 */
128         { "MAX", 1516, EDID_QUIRK_PREFER_LARGE_60 },
129         { "MAX", 0x77e, EDID_QUIRK_PREFER_LARGE_60 },
130
131         /* Envision Peripherals, Inc. EN-7100e */
132         { "EPI", 59264, EDID_QUIRK_135_CLOCK_TOO_HIGH },
133         /* Envision EN2028 */
134         { "EPI", 8232, EDID_QUIRK_PREFER_LARGE_60 },
135
136         /* Funai Electronics PM36B */
137         { "FCM", 13600, EDID_QUIRK_PREFER_LARGE_75 |
138           EDID_QUIRK_DETAILED_IN_CM },
139
140         /* LGD panel of HP zBook 17 G2, eDP 10 bpc, but reports unknown bpc */
141         { "LGD", 764, EDID_QUIRK_FORCE_10BPC },
142
143         /* LG Philips LCD LP154W01-A5 */
144         { "LPL", 0, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE },
145         { "LPL", 0x2a00, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE },
146
147         /* Samsung SyncMaster 205BW.  Note: irony */
148         { "SAM", 541, EDID_QUIRK_DETAILED_SYNC_PP },
149         /* Samsung SyncMaster 22[5-6]BW */
150         { "SAM", 596, EDID_QUIRK_PREFER_LARGE_60 },
151         { "SAM", 638, EDID_QUIRK_PREFER_LARGE_60 },
152
153         /* Sony PVM-2541A does up to 12 bpc, but only reports max 8 bpc */
154         { "SNY", 0x2541, EDID_QUIRK_FORCE_12BPC },
155
156         /* ViewSonic VA2026w */
157         { "VSC", 5020, EDID_QUIRK_FORCE_REDUCED_BLANKING },
158
159         /* Medion MD 30217 PG */
160         { "MED", 0x7b8, EDID_QUIRK_PREFER_LARGE_75 },
161
162         /* Lenovo G50 */
163         { "SDC", 18514, EDID_QUIRK_FORCE_6BPC },
164
165         /* Panel in Samsung NP700G7A-S01PL notebook reports 6bpc */
166         { "SEC", 0xd033, EDID_QUIRK_FORCE_8BPC },
167
168         /* Rotel RSX-1058 forwards sink's EDID but only does HDMI 1.1*/
169         { "ETR", 13896, EDID_QUIRK_FORCE_8BPC },
170
171         /* Valve Index Headset */
172         { "VLV", 0x91a8, EDID_QUIRK_NON_DESKTOP },
173         { "VLV", 0x91b0, EDID_QUIRK_NON_DESKTOP },
174         { "VLV", 0x91b1, EDID_QUIRK_NON_DESKTOP },
175         { "VLV", 0x91b2, EDID_QUIRK_NON_DESKTOP },
176         { "VLV", 0x91b3, EDID_QUIRK_NON_DESKTOP },
177         { "VLV", 0x91b4, EDID_QUIRK_NON_DESKTOP },
178         { "VLV", 0x91b5, EDID_QUIRK_NON_DESKTOP },
179         { "VLV", 0x91b6, EDID_QUIRK_NON_DESKTOP },
180         { "VLV", 0x91b7, EDID_QUIRK_NON_DESKTOP },
181         { "VLV", 0x91b8, EDID_QUIRK_NON_DESKTOP },
182         { "VLV", 0x91b9, EDID_QUIRK_NON_DESKTOP },
183         { "VLV", 0x91ba, EDID_QUIRK_NON_DESKTOP },
184         { "VLV", 0x91bb, EDID_QUIRK_NON_DESKTOP },
185         { "VLV", 0x91bc, EDID_QUIRK_NON_DESKTOP },
186         { "VLV", 0x91bd, EDID_QUIRK_NON_DESKTOP },
187         { "VLV", 0x91be, EDID_QUIRK_NON_DESKTOP },
188         { "VLV", 0x91bf, EDID_QUIRK_NON_DESKTOP },
189
190         /* HTC Vive and Vive Pro VR Headsets */
191         { "HVR", 0xaa01, EDID_QUIRK_NON_DESKTOP },
192         { "HVR", 0xaa02, EDID_QUIRK_NON_DESKTOP },
193
194         /* Oculus Rift DK1, DK2, and CV1 VR Headsets */
195         { "OVR", 0x0001, EDID_QUIRK_NON_DESKTOP },
196         { "OVR", 0x0003, EDID_QUIRK_NON_DESKTOP },
197         { "OVR", 0x0004, EDID_QUIRK_NON_DESKTOP },
198
199         /* Windows Mixed Reality Headsets */
200         { "ACR", 0x7fce, EDID_QUIRK_NON_DESKTOP },
201         { "HPN", 0x3515, EDID_QUIRK_NON_DESKTOP },
202         { "LEN", 0x0408, EDID_QUIRK_NON_DESKTOP },
203         { "LEN", 0xb800, EDID_QUIRK_NON_DESKTOP },
204         { "FUJ", 0x1970, EDID_QUIRK_NON_DESKTOP },
205         { "DEL", 0x7fce, EDID_QUIRK_NON_DESKTOP },
206         { "SEC", 0x144a, EDID_QUIRK_NON_DESKTOP },
207         { "AUS", 0xc102, EDID_QUIRK_NON_DESKTOP },
208
209         /* Sony PlayStation VR Headset */
210         { "SNY", 0x0704, EDID_QUIRK_NON_DESKTOP },
211
212         /* Sensics VR Headsets */
213         { "SEN", 0x1019, EDID_QUIRK_NON_DESKTOP },
214
215         /* OSVR HDK and HDK2 VR Headsets */
216         { "SVR", 0x1019, EDID_QUIRK_NON_DESKTOP },
217 };
218
219 /*
220  * Autogenerated from the DMT spec.
221  * This table is copied from xfree86/modes/xf86EdidModes.c.
222  */
223 static const struct drm_display_mode drm_dmt_modes[] = {
224         /* 0x01 - 640x350@85Hz */
225         { DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER, 31500, 640, 672,
226                    736, 832, 0, 350, 382, 385, 445, 0,
227                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
228         /* 0x02 - 640x400@85Hz */
229         { DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER, 31500, 640, 672,
230                    736, 832, 0, 400, 401, 404, 445, 0,
231                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
232         /* 0x03 - 720x400@85Hz */
233         { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 756,
234                    828, 936, 0, 400, 401, 404, 446, 0,
235                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
236         /* 0x04 - 640x480@60Hz */
237         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
238                    752, 800, 0, 480, 490, 492, 525, 0,
239                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
240         /* 0x05 - 640x480@72Hz */
241         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664,
242                    704, 832, 0, 480, 489, 492, 520, 0,
243                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
244         /* 0x06 - 640x480@75Hz */
245         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 656,
246                    720, 840, 0, 480, 481, 484, 500, 0,
247                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
248         /* 0x07 - 640x480@85Hz */
249         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 36000, 640, 696,
250                    752, 832, 0, 480, 481, 484, 509, 0,
251                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
252         /* 0x08 - 800x600@56Hz */
253         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 36000, 800, 824,
254                    896, 1024, 0, 600, 601, 603, 625, 0,
255                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
256         /* 0x09 - 800x600@60Hz */
257         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
258                    968, 1056, 0, 600, 601, 605, 628, 0,
259                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
260         /* 0x0a - 800x600@72Hz */
261         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 50000, 800, 856,
262                    976, 1040, 0, 600, 637, 643, 666, 0,
263                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
264         /* 0x0b - 800x600@75Hz */
265         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 49500, 800, 816,
266                    896, 1056, 0, 600, 601, 604, 625, 0,
267                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
268         /* 0x0c - 800x600@85Hz */
269         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 56250, 800, 832,
270                    896, 1048, 0, 600, 601, 604, 631, 0,
271                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
272         /* 0x0d - 800x600@120Hz RB */
273         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 73250, 800, 848,
274                    880, 960, 0, 600, 603, 607, 636, 0,
275                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
276         /* 0x0e - 848x480@60Hz */
277         { DRM_MODE("848x480", DRM_MODE_TYPE_DRIVER, 33750, 848, 864,
278                    976, 1088, 0, 480, 486, 494, 517, 0,
279                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
280         /* 0x0f - 1024x768@43Hz, interlace */
281         { DRM_MODE("1024x768i", DRM_MODE_TYPE_DRIVER, 44900, 1024, 1032,
282                    1208, 1264, 0, 768, 768, 776, 817, 0,
283                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
284                    DRM_MODE_FLAG_INTERLACE) },
285         /* 0x10 - 1024x768@60Hz */
286         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
287                    1184, 1344, 0, 768, 771, 777, 806, 0,
288                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
289         /* 0x11 - 1024x768@70Hz */
290         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 75000, 1024, 1048,
291                    1184, 1328, 0, 768, 771, 777, 806, 0,
292                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
293         /* 0x12 - 1024x768@75Hz */
294         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78750, 1024, 1040,
295                    1136, 1312, 0, 768, 769, 772, 800, 0,
296                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
297         /* 0x13 - 1024x768@85Hz */
298         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 94500, 1024, 1072,
299                    1168, 1376, 0, 768, 769, 772, 808, 0,
300                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
301         /* 0x14 - 1024x768@120Hz RB */
302         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 115500, 1024, 1072,
303                    1104, 1184, 0, 768, 771, 775, 813, 0,
304                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
305         /* 0x15 - 1152x864@75Hz */
306         { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
307                    1344, 1600, 0, 864, 865, 868, 900, 0,
308                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
309         /* 0x55 - 1280x720@60Hz */
310         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1390,
311                    1430, 1650, 0, 720, 725, 730, 750, 0,
312                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
313         /* 0x16 - 1280x768@60Hz RB */
314         { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 68250, 1280, 1328,
315                    1360, 1440, 0, 768, 771, 778, 790, 0,
316                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
317         /* 0x17 - 1280x768@60Hz */
318         { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
319                    1472, 1664, 0, 768, 771, 778, 798, 0,
320                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
321         /* 0x18 - 1280x768@75Hz */
322         { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 102250, 1280, 1360,
323                    1488, 1696, 0, 768, 771, 778, 805, 0,
324                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
325         /* 0x19 - 1280x768@85Hz */
326         { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 117500, 1280, 1360,
327                    1496, 1712, 0, 768, 771, 778, 809, 0,
328                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
329         /* 0x1a - 1280x768@120Hz RB */
330         { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 140250, 1280, 1328,
331                    1360, 1440, 0, 768, 771, 778, 813, 0,
332                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
333         /* 0x1b - 1280x800@60Hz RB */
334         { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 71000, 1280, 1328,
335                    1360, 1440, 0, 800, 803, 809, 823, 0,
336                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
337         /* 0x1c - 1280x800@60Hz */
338         { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
339                    1480, 1680, 0, 800, 803, 809, 831, 0,
340                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
341         /* 0x1d - 1280x800@75Hz */
342         { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 106500, 1280, 1360,
343                    1488, 1696, 0, 800, 803, 809, 838, 0,
344                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
345         /* 0x1e - 1280x800@85Hz */
346         { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 122500, 1280, 1360,
347                    1496, 1712, 0, 800, 803, 809, 843, 0,
348                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
349         /* 0x1f - 1280x800@120Hz RB */
350         { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 146250, 1280, 1328,
351                    1360, 1440, 0, 800, 803, 809, 847, 0,
352                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
353         /* 0x20 - 1280x960@60Hz */
354         { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
355                    1488, 1800, 0, 960, 961, 964, 1000, 0,
356                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
357         /* 0x21 - 1280x960@85Hz */
358         { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1344,
359                    1504, 1728, 0, 960, 961, 964, 1011, 0,
360                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
361         /* 0x22 - 1280x960@120Hz RB */
362         { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 175500, 1280, 1328,
363                    1360, 1440, 0, 960, 963, 967, 1017, 0,
364                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
365         /* 0x23 - 1280x1024@60Hz */
366         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
367                    1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
368                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
369         /* 0x24 - 1280x1024@75Hz */
370         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 135000, 1280, 1296,
371                    1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
372                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
373         /* 0x25 - 1280x1024@85Hz */
374         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 157500, 1280, 1344,
375                    1504, 1728, 0, 1024, 1025, 1028, 1072, 0,
376                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
377         /* 0x26 - 1280x1024@120Hz RB */
378         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 187250, 1280, 1328,
379                    1360, 1440, 0, 1024, 1027, 1034, 1084, 0,
380                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
381         /* 0x27 - 1360x768@60Hz */
382         { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
383                    1536, 1792, 0, 768, 771, 777, 795, 0,
384                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
385         /* 0x28 - 1360x768@120Hz RB */
386         { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 148250, 1360, 1408,
387                    1440, 1520, 0, 768, 771, 776, 813, 0,
388                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
389         /* 0x51 - 1366x768@60Hz */
390         { DRM_MODE("1366x768", DRM_MODE_TYPE_DRIVER, 85500, 1366, 1436,
391                    1579, 1792, 0, 768, 771, 774, 798, 0,
392                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
393         /* 0x56 - 1366x768@60Hz */
394         { DRM_MODE("1366x768", DRM_MODE_TYPE_DRIVER, 72000, 1366, 1380,
395                    1436, 1500, 0, 768, 769, 772, 800, 0,
396                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
397         /* 0x29 - 1400x1050@60Hz RB */
398         { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 101000, 1400, 1448,
399                    1480, 1560, 0, 1050, 1053, 1057, 1080, 0,
400                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
401         /* 0x2a - 1400x1050@60Hz */
402         { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
403                    1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
404                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
405         /* 0x2b - 1400x1050@75Hz */
406         { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 156000, 1400, 1504,
407                    1648, 1896, 0, 1050, 1053, 1057, 1099, 0,
408                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
409         /* 0x2c - 1400x1050@85Hz */
410         { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 179500, 1400, 1504,
411                    1656, 1912, 0, 1050, 1053, 1057, 1105, 0,
412                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
413         /* 0x2d - 1400x1050@120Hz RB */
414         { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 208000, 1400, 1448,
415                    1480, 1560, 0, 1050, 1053, 1057, 1112, 0,
416                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
417         /* 0x2e - 1440x900@60Hz RB */
418         { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 88750, 1440, 1488,
419                    1520, 1600, 0, 900, 903, 909, 926, 0,
420                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
421         /* 0x2f - 1440x900@60Hz */
422         { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
423                    1672, 1904, 0, 900, 903, 909, 934, 0,
424                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
425         /* 0x30 - 1440x900@75Hz */
426         { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 136750, 1440, 1536,
427                    1688, 1936, 0, 900, 903, 909, 942, 0,
428                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
429         /* 0x31 - 1440x900@85Hz */
430         { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 157000, 1440, 1544,
431                    1696, 1952, 0, 900, 903, 909, 948, 0,
432                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
433         /* 0x32 - 1440x900@120Hz RB */
434         { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 182750, 1440, 1488,
435                    1520, 1600, 0, 900, 903, 909, 953, 0,
436                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
437         /* 0x53 - 1600x900@60Hz */
438         { DRM_MODE("1600x900", DRM_MODE_TYPE_DRIVER, 108000, 1600, 1624,
439                    1704, 1800, 0, 900, 901, 904, 1000, 0,
440                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
441         /* 0x33 - 1600x1200@60Hz */
442         { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
443                    1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
444                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
445         /* 0x34 - 1600x1200@65Hz */
446         { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 175500, 1600, 1664,
447                    1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
448                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
449         /* 0x35 - 1600x1200@70Hz */
450         { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 189000, 1600, 1664,
451                    1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
452                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
453         /* 0x36 - 1600x1200@75Hz */
454         { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 202500, 1600, 1664,
455                    1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
456                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
457         /* 0x37 - 1600x1200@85Hz */
458         { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 229500, 1600, 1664,
459                    1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
460                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
461         /* 0x38 - 1600x1200@120Hz RB */
462         { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 268250, 1600, 1648,
463                    1680, 1760, 0, 1200, 1203, 1207, 1271, 0,
464                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
465         /* 0x39 - 1680x1050@60Hz RB */
466         { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 119000, 1680, 1728,
467                    1760, 1840, 0, 1050, 1053, 1059, 1080, 0,
468                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
469         /* 0x3a - 1680x1050@60Hz */
470         { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
471                    1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
472                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
473         /* 0x3b - 1680x1050@75Hz */
474         { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 187000, 1680, 1800,
475                    1976, 2272, 0, 1050, 1053, 1059, 1099, 0,
476                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
477         /* 0x3c - 1680x1050@85Hz */
478         { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 214750, 1680, 1808,
479                    1984, 2288, 0, 1050, 1053, 1059, 1105, 0,
480                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
481         /* 0x3d - 1680x1050@120Hz RB */
482         { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 245500, 1680, 1728,
483                    1760, 1840, 0, 1050, 1053, 1059, 1112, 0,
484                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
485         /* 0x3e - 1792x1344@60Hz */
486         { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
487                    2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
488                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
489         /* 0x3f - 1792x1344@75Hz */
490         { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 261000, 1792, 1888,
491                    2104, 2456, 0, 1344, 1345, 1348, 1417, 0,
492                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
493         /* 0x40 - 1792x1344@120Hz RB */
494         { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 333250, 1792, 1840,
495                    1872, 1952, 0, 1344, 1347, 1351, 1423, 0,
496                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
497         /* 0x41 - 1856x1392@60Hz */
498         { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
499                    2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
500                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
501         /* 0x42 - 1856x1392@75Hz */
502         { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 288000, 1856, 1984,
503                    2208, 2560, 0, 1392, 1393, 1396, 1500, 0,
504                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
505         /* 0x43 - 1856x1392@120Hz RB */
506         { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 356500, 1856, 1904,
507                    1936, 2016, 0, 1392, 1395, 1399, 1474, 0,
508                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
509         /* 0x52 - 1920x1080@60Hz */
510         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
511                    2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
512                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
513         /* 0x44 - 1920x1200@60Hz RB */
514         { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 154000, 1920, 1968,
515                    2000, 2080, 0, 1200, 1203, 1209, 1235, 0,
516                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
517         /* 0x45 - 1920x1200@60Hz */
518         { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
519                    2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
520                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
521         /* 0x46 - 1920x1200@75Hz */
522         { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 245250, 1920, 2056,
523                    2264, 2608, 0, 1200, 1203, 1209, 1255, 0,
524                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
525         /* 0x47 - 1920x1200@85Hz */
526         { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 281250, 1920, 2064,
527                    2272, 2624, 0, 1200, 1203, 1209, 1262, 0,
528                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
529         /* 0x48 - 1920x1200@120Hz RB */
530         { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 317000, 1920, 1968,
531                    2000, 2080, 0, 1200, 1203, 1209, 1271, 0,
532                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
533         /* 0x49 - 1920x1440@60Hz */
534         { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
535                    2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
536                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
537         /* 0x4a - 1920x1440@75Hz */
538         { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2064,
539                    2288, 2640, 0, 1440, 1441, 1444, 1500, 0,
540                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
541         /* 0x4b - 1920x1440@120Hz RB */
542         { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 380500, 1920, 1968,
543                    2000, 2080, 0, 1440, 1443, 1447, 1525, 0,
544                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
545         /* 0x54 - 2048x1152@60Hz */
546         { DRM_MODE("2048x1152", DRM_MODE_TYPE_DRIVER, 162000, 2048, 2074,
547                    2154, 2250, 0, 1152, 1153, 1156, 1200, 0,
548                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
549         /* 0x4c - 2560x1600@60Hz RB */
550         { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 268500, 2560, 2608,
551                    2640, 2720, 0, 1600, 1603, 1609, 1646, 0,
552                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
553         /* 0x4d - 2560x1600@60Hz */
554         { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
555                    3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
556                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
557         /* 0x4e - 2560x1600@75Hz */
558         { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 443250, 2560, 2768,
559                    3048, 3536, 0, 1600, 1603, 1609, 1672, 0,
560                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
561         /* 0x4f - 2560x1600@85Hz */
562         { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 505250, 2560, 2768,
563                    3048, 3536, 0, 1600, 1603, 1609, 1682, 0,
564                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
565         /* 0x50 - 2560x1600@120Hz RB */
566         { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 552750, 2560, 2608,
567                    2640, 2720, 0, 1600, 1603, 1609, 1694, 0,
568                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
569         /* 0x57 - 4096x2160@60Hz RB */
570         { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 556744, 4096, 4104,
571                    4136, 4176, 0, 2160, 2208, 2216, 2222, 0,
572                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
573         /* 0x58 - 4096x2160@59.94Hz RB */
574         { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 556188, 4096, 4104,
575                    4136, 4176, 0, 2160, 2208, 2216, 2222, 0,
576                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
577 };
578
579 /*
580  * These more or less come from the DMT spec.  The 720x400 modes are
581  * inferred from historical 80x25 practice.  The 640x480@67 and 832x624@75
582  * modes are old-school Mac modes.  The EDID spec says the 1152x864@75 mode
583  * should be 1152x870, again for the Mac, but instead we use the x864 DMT
584  * mode.
585  *
586  * The DMT modes have been fact-checked; the rest are mild guesses.
587  */
588 static const struct drm_display_mode edid_est_modes[] = {
589         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
590                    968, 1056, 0, 600, 601, 605, 628, 0,
591                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@60Hz */
592         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 36000, 800, 824,
593                    896, 1024, 0, 600, 601, 603,  625, 0,
594                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@56Hz */
595         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 656,
596                    720, 840, 0, 480, 481, 484, 500, 0,
597                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@75Hz */
598         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664,
599                    704,  832, 0, 480, 489, 492, 520, 0,
600                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@72Hz */
601         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 30240, 640, 704,
602                    768,  864, 0, 480, 483, 486, 525, 0,
603                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@67Hz */
604         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
605                    752, 800, 0, 480, 490, 492, 525, 0,
606                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@60Hz */
607         { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 738,
608                    846, 900, 0, 400, 421, 423,  449, 0,
609                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 720x400@88Hz */
610         { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 28320, 720, 738,
611                    846,  900, 0, 400, 412, 414, 449, 0,
612                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 720x400@70Hz */
613         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 135000, 1280, 1296,
614                    1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
615                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1280x1024@75Hz */
616         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78750, 1024, 1040,
617                    1136, 1312, 0,  768, 769, 772, 800, 0,
618                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1024x768@75Hz */
619         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 75000, 1024, 1048,
620                    1184, 1328, 0,  768, 771, 777, 806, 0,
621                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1024x768@70Hz */
622         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
623                    1184, 1344, 0,  768, 771, 777, 806, 0,
624                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1024x768@60Hz */
625         { DRM_MODE("1024x768i", DRM_MODE_TYPE_DRIVER,44900, 1024, 1032,
626                    1208, 1264, 0, 768, 768, 776, 817, 0,
627                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_INTERLACE) }, /* 1024x768@43Hz */
628         { DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 57284, 832, 864,
629                    928, 1152, 0, 624, 625, 628, 667, 0,
630                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 832x624@75Hz */
631         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 49500, 800, 816,
632                    896, 1056, 0, 600, 601, 604,  625, 0,
633                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@75Hz */
634         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 50000, 800, 856,
635                    976, 1040, 0, 600, 637, 643, 666, 0,
636                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@72Hz */
637         { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
638                    1344, 1600, 0,  864, 865, 868, 900, 0,
639                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1152x864@75Hz */
640 };
641
642 struct minimode {
643         short w;
644         short h;
645         short r;
646         short rb;
647 };
648
649 static const struct minimode est3_modes[] = {
650         /* byte 6 */
651         { 640, 350, 85, 0 },
652         { 640, 400, 85, 0 },
653         { 720, 400, 85, 0 },
654         { 640, 480, 85, 0 },
655         { 848, 480, 60, 0 },
656         { 800, 600, 85, 0 },
657         { 1024, 768, 85, 0 },
658         { 1152, 864, 75, 0 },
659         /* byte 7 */
660         { 1280, 768, 60, 1 },
661         { 1280, 768, 60, 0 },
662         { 1280, 768, 75, 0 },
663         { 1280, 768, 85, 0 },
664         { 1280, 960, 60, 0 },
665         { 1280, 960, 85, 0 },
666         { 1280, 1024, 60, 0 },
667         { 1280, 1024, 85, 0 },
668         /* byte 8 */
669         { 1360, 768, 60, 0 },
670         { 1440, 900, 60, 1 },
671         { 1440, 900, 60, 0 },
672         { 1440, 900, 75, 0 },
673         { 1440, 900, 85, 0 },
674         { 1400, 1050, 60, 1 },
675         { 1400, 1050, 60, 0 },
676         { 1400, 1050, 75, 0 },
677         /* byte 9 */
678         { 1400, 1050, 85, 0 },
679         { 1680, 1050, 60, 1 },
680         { 1680, 1050, 60, 0 },
681         { 1680, 1050, 75, 0 },
682         { 1680, 1050, 85, 0 },
683         { 1600, 1200, 60, 0 },
684         { 1600, 1200, 65, 0 },
685         { 1600, 1200, 70, 0 },
686         /* byte 10 */
687         { 1600, 1200, 75, 0 },
688         { 1600, 1200, 85, 0 },
689         { 1792, 1344, 60, 0 },
690         { 1792, 1344, 75, 0 },
691         { 1856, 1392, 60, 0 },
692         { 1856, 1392, 75, 0 },
693         { 1920, 1200, 60, 1 },
694         { 1920, 1200, 60, 0 },
695         /* byte 11 */
696         { 1920, 1200, 75, 0 },
697         { 1920, 1200, 85, 0 },
698         { 1920, 1440, 60, 0 },
699         { 1920, 1440, 75, 0 },
700 };
701
702 static const struct minimode extra_modes[] = {
703         { 1024, 576,  60, 0 },
704         { 1366, 768,  60, 0 },
705         { 1600, 900,  60, 0 },
706         { 1680, 945,  60, 0 },
707         { 1920, 1080, 60, 0 },
708         { 2048, 1152, 60, 0 },
709         { 2048, 1536, 60, 0 },
710 };
711
712 /*
713  * Probably taken from CEA-861 spec.
714  * This table is converted from xorg's hw/xfree86/modes/xf86EdidModes.c.
715  *
716  * Index using the VIC.
717  */
718 static const struct drm_display_mode edid_cea_modes[] = {
719         /* 0 - dummy, VICs start at 1 */
720         { },
721         /* 1 - 640x480@60Hz 4:3 */
722         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
723                    752, 800, 0, 480, 490, 492, 525, 0,
724                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
725           .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
726         /* 2 - 720x480@60Hz 4:3 */
727         { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 27000, 720, 736,
728                    798, 858, 0, 480, 489, 495, 525, 0,
729                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
730           .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
731         /* 3 - 720x480@60Hz 16:9 */
732         { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 27000, 720, 736,
733                    798, 858, 0, 480, 489, 495, 525, 0,
734                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
735           .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
736         /* 4 - 1280x720@60Hz 16:9 */
737         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1390,
738                    1430, 1650, 0, 720, 725, 730, 750, 0,
739                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
740           .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
741         /* 5 - 1920x1080i@60Hz 16:9 */
742         { DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2008,
743                    2052, 2200, 0, 1080, 1084, 1094, 1125, 0,
744                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
745                    DRM_MODE_FLAG_INTERLACE),
746           .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
747         /* 6 - 720(1440)x480i@60Hz 4:3 */
748         { DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 13500, 720, 739,
749                    801, 858, 0, 480, 488, 494, 525, 0,
750                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
751                    DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
752           .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
753         /* 7 - 720(1440)x480i@60Hz 16:9 */
754         { DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 13500, 720, 739,
755                    801, 858, 0, 480, 488, 494, 525, 0,
756                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
757                    DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
758           .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
759         /* 8 - 720(1440)x240@60Hz 4:3 */
760         { DRM_MODE("720x240", DRM_MODE_TYPE_DRIVER, 13500, 720, 739,
761                    801, 858, 0, 240, 244, 247, 262, 0,
762                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
763                    DRM_MODE_FLAG_DBLCLK),
764           .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
765         /* 9 - 720(1440)x240@60Hz 16:9 */
766         { DRM_MODE("720x240", DRM_MODE_TYPE_DRIVER, 13500, 720, 739,
767                    801, 858, 0, 240, 244, 247, 262, 0,
768                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
769                    DRM_MODE_FLAG_DBLCLK),
770           .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
771         /* 10 - 2880x480i@60Hz 4:3 */
772         { DRM_MODE("2880x480i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
773                    3204, 3432, 0, 480, 488, 494, 525, 0,
774                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
775                    DRM_MODE_FLAG_INTERLACE),
776           .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
777         /* 11 - 2880x480i@60Hz 16:9 */
778         { DRM_MODE("2880x480i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
779                    3204, 3432, 0, 480, 488, 494, 525, 0,
780                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
781                    DRM_MODE_FLAG_INTERLACE),
782           .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
783         /* 12 - 2880x240@60Hz 4:3 */
784         { DRM_MODE("2880x240", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
785                    3204, 3432, 0, 240, 244, 247, 262, 0,
786                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
787           .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
788         /* 13 - 2880x240@60Hz 16:9 */
789         { DRM_MODE("2880x240", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
790                    3204, 3432, 0, 240, 244, 247, 262, 0,
791                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
792           .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
793         /* 14 - 1440x480@60Hz 4:3 */
794         { DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1472,
795                    1596, 1716, 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         /* 15 - 1440x480@60Hz 16:9 */
799         { DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1472,
800                    1596, 1716, 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         /* 16 - 1920x1080@60Hz 16:9 */
804         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
805                    2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
806                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
807           .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
808         /* 17 - 720x576@50Hz 4:3 */
809         { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
810                    796, 864, 0, 576, 581, 586, 625, 0,
811                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
812           .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
813         /* 18 - 720x576@50Hz 16:9 */
814         { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
815                    796, 864, 0, 576, 581, 586, 625, 0,
816                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
817           .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
818         /* 19 - 1280x720@50Hz 16:9 */
819         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1720,
820                    1760, 1980, 0, 720, 725, 730, 750, 0,
821                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
822           .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
823         /* 20 - 1920x1080i@50Hz 16:9 */
824         { DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2448,
825                    2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
826                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
827                    DRM_MODE_FLAG_INTERLACE),
828           .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
829         /* 21 - 720(1440)x576i@50Hz 4:3 */
830         { DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 13500, 720, 732,
831                    795, 864, 0, 576, 580, 586, 625, 0,
832                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
833                    DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
834           .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
835         /* 22 - 720(1440)x576i@50Hz 16:9 */
836         { DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 13500, 720, 732,
837                    795, 864, 0, 576, 580, 586, 625, 0,
838                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
839                    DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
840           .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
841         /* 23 - 720(1440)x288@50Hz 4:3 */
842         { DRM_MODE("720x288", DRM_MODE_TYPE_DRIVER, 13500, 720, 732,
843                    795, 864, 0, 288, 290, 293, 312, 0,
844                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
845                    DRM_MODE_FLAG_DBLCLK),
846           .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
847         /* 24 - 720(1440)x288@50Hz 16:9 */
848         { DRM_MODE("720x288", DRM_MODE_TYPE_DRIVER, 13500, 720, 732,
849                    795, 864, 0, 288, 290, 293, 312, 0,
850                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
851                    DRM_MODE_FLAG_DBLCLK),
852           .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
853         /* 25 - 2880x576i@50Hz 4:3 */
854         { DRM_MODE("2880x576i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
855                    3180, 3456, 0, 576, 580, 586, 625, 0,
856                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
857                    DRM_MODE_FLAG_INTERLACE),
858           .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
859         /* 26 - 2880x576i@50Hz 16:9 */
860         { DRM_MODE("2880x576i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
861                    3180, 3456, 0, 576, 580, 586, 625, 0,
862                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
863                    DRM_MODE_FLAG_INTERLACE),
864           .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
865         /* 27 - 2880x288@50Hz 4:3 */
866         { DRM_MODE("2880x288", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
867                    3180, 3456, 0, 288, 290, 293, 312, 0,
868                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
869           .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
870         /* 28 - 2880x288@50Hz 16:9 */
871         { DRM_MODE("2880x288", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
872                    3180, 3456, 0, 288, 290, 293, 312, 0,
873                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
874           .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
875         /* 29 - 1440x576@50Hz 4:3 */
876         { DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1464,
877                    1592, 1728, 0, 576, 581, 586, 625, 0,
878                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
879           .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
880         /* 30 - 1440x576@50Hz 16:9 */
881         { DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1464,
882                    1592, 1728, 0, 576, 581, 586, 625, 0,
883                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
884           .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
885         /* 31 - 1920x1080@50Hz 16:9 */
886         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2448,
887                    2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
888                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
889           .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
890         /* 32 - 1920x1080@24Hz 16:9 */
891         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2558,
892                    2602, 2750, 0, 1080, 1084, 1089, 1125, 0,
893                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
894           .vrefresh = 24, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
895         /* 33 - 1920x1080@25Hz 16:9 */
896         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2448,
897                    2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
898                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
899           .vrefresh = 25, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
900         /* 34 - 1920x1080@30Hz 16:9 */
901         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2008,
902                    2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
903                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
904           .vrefresh = 30, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
905         /* 35 - 2880x480@60Hz 4:3 */
906         { DRM_MODE("2880x480", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2944,
907                    3192, 3432, 0, 480, 489, 495, 525, 0,
908                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
909           .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
910         /* 36 - 2880x480@60Hz 16:9 */
911         { DRM_MODE("2880x480", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2944,
912                    3192, 3432, 0, 480, 489, 495, 525, 0,
913                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
914           .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
915         /* 37 - 2880x576@50Hz 4:3 */
916         { DRM_MODE("2880x576", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2928,
917                    3184, 3456, 0, 576, 581, 586, 625, 0,
918                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
919           .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
920         /* 38 - 2880x576@50Hz 16:9 */
921         { DRM_MODE("2880x576", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2928,
922                    3184, 3456, 0, 576, 581, 586, 625, 0,
923                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
924           .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
925         /* 39 - 1920x1080i@50Hz 16:9 */
926         { DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 72000, 1920, 1952,
927                    2120, 2304, 0, 1080, 1126, 1136, 1250, 0,
928                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC |
929                    DRM_MODE_FLAG_INTERLACE),
930           .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
931         /* 40 - 1920x1080i@100Hz 16:9 */
932         { DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2448,
933                    2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
934                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
935                    DRM_MODE_FLAG_INTERLACE),
936           .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
937         /* 41 - 1280x720@100Hz 16:9 */
938         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1720,
939                    1760, 1980, 0, 720, 725, 730, 750, 0,
940                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
941           .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
942         /* 42 - 720x576@100Hz 4:3 */
943         { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
944                    796, 864, 0, 576, 581, 586, 625, 0,
945                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
946           .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
947         /* 43 - 720x576@100Hz 16:9 */
948         { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
949                    796, 864, 0, 576, 581, 586, 625, 0,
950                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
951           .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
952         /* 44 - 720(1440)x576i@100Hz 4:3 */
953         { DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
954                    795, 864, 0, 576, 580, 586, 625, 0,
955                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
956                    DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
957           .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
958         /* 45 - 720(1440)x576i@100Hz 16:9 */
959         { DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
960                    795, 864, 0, 576, 580, 586, 625, 0,
961                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
962                    DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
963           .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
964         /* 46 - 1920x1080i@120Hz 16:9 */
965         { DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
966                    2052, 2200, 0, 1080, 1084, 1094, 1125, 0,
967                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
968                    DRM_MODE_FLAG_INTERLACE),
969           .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
970         /* 47 - 1280x720@120Hz 16:9 */
971         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1390,
972                    1430, 1650, 0, 720, 725, 730, 750, 0,
973                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
974           .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
975         /* 48 - 720x480@120Hz 4:3 */
976         { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 54000, 720, 736,
977                    798, 858, 0, 480, 489, 495, 525, 0,
978                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
979           .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
980         /* 49 - 720x480@120Hz 16:9 */
981         { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 54000, 720, 736,
982                    798, 858, 0, 480, 489, 495, 525, 0,
983                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
984           .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
985         /* 50 - 720(1440)x480i@120Hz 4:3 */
986         { DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 27000, 720, 739,
987                    801, 858, 0, 480, 488, 494, 525, 0,
988                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
989                    DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
990           .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
991         /* 51 - 720(1440)x480i@120Hz 16:9 */
992         { DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 27000, 720, 739,
993                    801, 858, 0, 480, 488, 494, 525, 0,
994                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
995                    DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
996           .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
997         /* 52 - 720x576@200Hz 4:3 */
998         { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 108000, 720, 732,
999                    796, 864, 0, 576, 581, 586, 625, 0,
1000                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
1001           .vrefresh = 200, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
1002         /* 53 - 720x576@200Hz 16:9 */
1003         { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 108000, 720, 732,
1004                    796, 864, 0, 576, 581, 586, 625, 0,
1005                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
1006           .vrefresh = 200, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1007         /* 54 - 720(1440)x576i@200Hz 4:3 */
1008         { DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
1009                    795, 864, 0, 576, 580, 586, 625, 0,
1010                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
1011                    DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
1012           .vrefresh = 200, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
1013         /* 55 - 720(1440)x576i@200Hz 16:9 */
1014         { DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
1015                    795, 864, 0, 576, 580, 586, 625, 0,
1016                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
1017                    DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
1018           .vrefresh = 200, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1019         /* 56 - 720x480@240Hz 4:3 */
1020         { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 108000, 720, 736,
1021                    798, 858, 0, 480, 489, 495, 525, 0,
1022                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
1023           .vrefresh = 240, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
1024         /* 57 - 720x480@240Hz 16:9 */
1025         { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 108000, 720, 736,
1026                    798, 858, 0, 480, 489, 495, 525, 0,
1027                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
1028           .vrefresh = 240, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1029         /* 58 - 720(1440)x480i@240Hz 4:3 */
1030         { DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 54000, 720, 739,
1031                    801, 858, 0, 480, 488, 494, 525, 0,
1032                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
1033                    DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
1034           .vrefresh = 240, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
1035         /* 59 - 720(1440)x480i@240Hz 16:9 */
1036         { DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 54000, 720, 739,
1037                    801, 858, 0, 480, 488, 494, 525, 0,
1038                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
1039                    DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
1040           .vrefresh = 240, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1041         /* 60 - 1280x720@24Hz 16:9 */
1042         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 59400, 1280, 3040,
1043                    3080, 3300, 0, 720, 725, 730, 750, 0,
1044                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1045           .vrefresh = 24, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1046         /* 61 - 1280x720@25Hz 16:9 */
1047         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3700,
1048                    3740, 3960, 0, 720, 725, 730, 750, 0,
1049                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1050           .vrefresh = 25, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1051         /* 62 - 1280x720@30Hz 16:9 */
1052         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3040,
1053                    3080, 3300, 0, 720, 725, 730, 750, 0,
1054                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1055           .vrefresh = 30, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1056         /* 63 - 1920x1080@120Hz 16:9 */
1057         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2008,
1058                    2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
1059                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1060           .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1061         /* 64 - 1920x1080@100Hz 16:9 */
1062         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2448,
1063                    2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
1064                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1065           .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1066         /* 65 - 1280x720@24Hz 64:27 */
1067         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 59400, 1280, 3040,
1068                    3080, 3300, 0, 720, 725, 730, 750, 0,
1069                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1070           .vrefresh = 24, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1071         /* 66 - 1280x720@25Hz 64:27 */
1072         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3700,
1073                    3740, 3960, 0, 720, 725, 730, 750, 0,
1074                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1075           .vrefresh = 25, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1076         /* 67 - 1280x720@30Hz 64:27 */
1077         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3040,
1078                    3080, 3300, 0, 720, 725, 730, 750, 0,
1079                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1080           .vrefresh = 30, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1081         /* 68 - 1280x720@50Hz 64:27 */
1082         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1720,
1083                    1760, 1980, 0, 720, 725, 730, 750, 0,
1084                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1085           .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1086         /* 69 - 1280x720@60Hz 64:27 */
1087         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1390,
1088                    1430, 1650, 0, 720, 725, 730, 750, 0,
1089                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1090           .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1091         /* 70 - 1280x720@100Hz 64:27 */
1092         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1720,
1093                    1760, 1980, 0, 720, 725, 730, 750, 0,
1094                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1095           .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1096         /* 71 - 1280x720@120Hz 64:27 */
1097         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1390,
1098                    1430, 1650, 0, 720, 725, 730, 750, 0,
1099                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1100           .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1101         /* 72 - 1920x1080@24Hz 64:27 */
1102         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2558,
1103                    2602, 2750, 0, 1080, 1084, 1089, 1125, 0,
1104                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1105           .vrefresh = 24, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1106         /* 73 - 1920x1080@25Hz 64:27 */
1107         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2448,
1108                    2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
1109                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1110           .vrefresh = 25, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1111         /* 74 - 1920x1080@30Hz 64:27 */
1112         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2008,
1113                    2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
1114                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1115           .vrefresh = 30, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1116         /* 75 - 1920x1080@50Hz 64:27 */
1117         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2448,
1118                    2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
1119                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1120           .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1121         /* 76 - 1920x1080@60Hz 64:27 */
1122         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
1123                    2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
1124                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1125           .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1126         /* 77 - 1920x1080@100Hz 64:27 */
1127         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2448,
1128                    2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
1129                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1130           .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1131         /* 78 - 1920x1080@120Hz 64:27 */
1132         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2008,
1133                    2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
1134                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1135           .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1136         /* 79 - 1680x720@24Hz 64:27 */
1137         { DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 59400, 1680, 3040,
1138                    3080, 3300, 0, 720, 725, 730, 750, 0,
1139                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1140           .vrefresh = 24, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1141         /* 80 - 1680x720@25Hz 64:27 */
1142         { DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 59400, 1680, 2908,
1143                    2948, 3168, 0, 720, 725, 730, 750, 0,
1144                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1145           .vrefresh = 25, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1146         /* 81 - 1680x720@30Hz 64:27 */
1147         { DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 59400, 1680, 2380,
1148                    2420, 2640, 0, 720, 725, 730, 750, 0,
1149                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1150           .vrefresh = 30, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1151         /* 82 - 1680x720@50Hz 64:27 */
1152         { DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 82500, 1680, 1940,
1153                    1980, 2200, 0, 720, 725, 730, 750, 0,
1154                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1155           .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1156         /* 83 - 1680x720@60Hz 64:27 */
1157         { DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 99000, 1680, 1940,
1158                    1980, 2200, 0, 720, 725, 730, 750, 0,
1159                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1160           .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1161         /* 84 - 1680x720@100Hz 64:27 */
1162         { DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 165000, 1680, 1740,
1163                    1780, 2000, 0, 720, 725, 730, 825, 0,
1164                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1165           .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1166         /* 85 - 1680x720@120Hz 64:27 */
1167         { DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 198000, 1680, 1740,
1168                    1780, 2000, 0, 720, 725, 730, 825, 0,
1169                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1170           .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1171         /* 86 - 2560x1080@24Hz 64:27 */
1172         { DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 99000, 2560, 3558,
1173                    3602, 3750, 0, 1080, 1084, 1089, 1100, 0,
1174                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1175           .vrefresh = 24, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1176         /* 87 - 2560x1080@25Hz 64:27 */
1177         { DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 90000, 2560, 3008,
1178                    3052, 3200, 0, 1080, 1084, 1089, 1125, 0,
1179                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1180           .vrefresh = 25, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1181         /* 88 - 2560x1080@30Hz 64:27 */
1182         { DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 118800, 2560, 3328,
1183                    3372, 3520, 0, 1080, 1084, 1089, 1125, 0,
1184                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1185           .vrefresh = 30, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1186         /* 89 - 2560x1080@50Hz 64:27 */
1187         { DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 185625, 2560, 3108,
1188                    3152, 3300, 0, 1080, 1084, 1089, 1125, 0,
1189                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1190           .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1191         /* 90 - 2560x1080@60Hz 64:27 */
1192         { DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 198000, 2560, 2808,
1193                    2852, 3000, 0, 1080, 1084, 1089, 1100, 0,
1194                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1195           .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1196         /* 91 - 2560x1080@100Hz 64:27 */
1197         { DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 371250, 2560, 2778,
1198                    2822, 2970, 0, 1080, 1084, 1089, 1250, 0,
1199                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1200           .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1201         /* 92 - 2560x1080@120Hz 64:27 */
1202         { DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 495000, 2560, 3108,
1203                    3152, 3300, 0, 1080, 1084, 1089, 1250, 0,
1204                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1205           .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1206         /* 93 - 3840x2160@24Hz 16:9 */
1207         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000, 3840, 5116,
1208                    5204, 5500, 0, 2160, 2168, 2178, 2250, 0,
1209                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1210           .vrefresh = 24, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1211         /* 94 - 3840x2160@25Hz 16:9 */
1212         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000, 3840, 4896,
1213                    4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1214                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1215           .vrefresh = 25, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1216         /* 95 - 3840x2160@30Hz 16:9 */
1217         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000, 3840, 4016,
1218                    4104, 4400, 0, 2160, 2168, 2178, 2250, 0,
1219                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1220           .vrefresh = 30, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1221         /* 96 - 3840x2160@50Hz 16:9 */
1222         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 594000, 3840, 4896,
1223                    4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1224                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1225           .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1226         /* 97 - 3840x2160@60Hz 16:9 */
1227         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 594000, 3840, 4016,
1228                    4104, 4400, 0, 2160, 2168, 2178, 2250, 0,
1229                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1230           .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1231         /* 98 - 4096x2160@24Hz 256:135 */
1232         { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 297000, 4096, 5116,
1233                    5204, 5500, 0, 2160, 2168, 2178, 2250, 0,
1234                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1235           .vrefresh = 24, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1236         /* 99 - 4096x2160@25Hz 256:135 */
1237         { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 297000, 4096, 5064,
1238                    5152, 5280, 0, 2160, 2168, 2178, 2250, 0,
1239                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1240           .vrefresh = 25, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1241         /* 100 - 4096x2160@30Hz 256:135 */
1242         { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 297000, 4096, 4184,
1243                    4272, 4400, 0, 2160, 2168, 2178, 2250, 0,
1244                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1245           .vrefresh = 30, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1246         /* 101 - 4096x2160@50Hz 256:135 */
1247         { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 594000, 4096, 5064,
1248                    5152, 5280, 0, 2160, 2168, 2178, 2250, 0,
1249                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1250           .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1251         /* 102 - 4096x2160@60Hz 256:135 */
1252         { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 594000, 4096, 4184,
1253                    4272, 4400, 0, 2160, 2168, 2178, 2250, 0,
1254                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1255           .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1256         /* 103 - 3840x2160@24Hz 64:27 */
1257         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000, 3840, 5116,
1258                    5204, 5500, 0, 2160, 2168, 2178, 2250, 0,
1259                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1260           .vrefresh = 24, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1261         /* 104 - 3840x2160@25Hz 64:27 */
1262         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000, 3840, 4896,
1263                    4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1264                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1265           .vrefresh = 25, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1266         /* 105 - 3840x2160@30Hz 64:27 */
1267         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000, 3840, 4016,
1268                    4104, 4400, 0, 2160, 2168, 2178, 2250, 0,
1269                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1270           .vrefresh = 30, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1271         /* 106 - 3840x2160@50Hz 64:27 */
1272         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 594000, 3840, 4896,
1273                    4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1274                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1275           .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1276         /* 107 - 3840x2160@60Hz 64:27 */
1277         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 594000, 3840, 4016,
1278                    4104, 4400, 0, 2160, 2168, 2178, 2250, 0,
1279                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1280           .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1281         /* 108 - 1280x720@48Hz 16:9 */
1282         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 90000, 1280, 2240,
1283                    2280, 2500, 0, 720, 725, 730, 750, 0,
1284                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1285           .vrefresh = 48, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1286         /* 109 - 1280x720@48Hz 64:27 */
1287         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 90000, 1280, 2240,
1288                    2280, 2500, 0, 720, 725, 730, 750, 0,
1289                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1290           .vrefresh = 48, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1291         /* 110 - 1680x720@48Hz 64:27 */
1292         { DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 99000, 1680, 2490,
1293                    2530, 2750, 0, 720, 725, 730, 750, 0,
1294                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1295           .vrefresh = 48, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1296         /* 111 - 1920x1080@48Hz 16:9 */
1297         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2558,
1298                    2602, 2750, 0, 1080, 1084, 1089, 1125, 0,
1299                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1300           .vrefresh = 48, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1301         /* 112 - 1920x1080@48Hz 64:27 */
1302         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2558,
1303                    2602, 2750, 0, 1080, 1084, 1089, 1125, 0,
1304                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1305           .vrefresh = 48, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1306         /* 113 - 2560x1080@48Hz 64:27 */
1307         { DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 198000, 2560, 3558,
1308                    3602, 3750, 0, 1080, 1084, 1089, 1100, 0,
1309                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1310           .vrefresh = 48, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1311         /* 114 - 3840x2160@48Hz 16:9 */
1312         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 594000, 3840, 5116,
1313                    5204, 5500, 0, 2160, 2168, 2178, 2250, 0,
1314                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1315           .vrefresh = 48, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1316         /* 115 - 4096x2160@48Hz 256:135 */
1317         { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 594000, 4096, 5116,
1318                    5204, 5500, 0, 2160, 2168, 2178, 2250, 0,
1319                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1320           .vrefresh = 48, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1321         /* 116 - 3840x2160@48Hz 64:27 */
1322         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 594000, 3840, 5116,
1323                    5204, 5500, 0, 2160, 2168, 2178, 2250, 0,
1324                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1325           .vrefresh = 48, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1326         /* 117 - 3840x2160@100Hz 16:9 */
1327         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 1188000, 3840, 4896,
1328                    4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1329                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1330           .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1331         /* 118 - 3840x2160@120Hz 16:9 */
1332         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 1188000, 3840, 4016,
1333                    4104, 4400, 0, 2160, 2168, 2178, 2250, 0,
1334                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1335           .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1336         /* 119 - 3840x2160@100Hz 64:27 */
1337         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 1188000, 3840, 4896,
1338                    4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1339                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1340           .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1341         /* 120 - 3840x2160@120Hz 64:27 */
1342         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 1188000, 3840, 4016,
1343                    4104, 4400, 0, 2160, 2168, 2178, 2250, 0,
1344                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1345           .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1346         /* 121 - 5120x2160@24Hz 64:27 */
1347         { DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 396000, 5120, 7116,
1348                    7204, 7500, 0, 2160, 2168, 2178, 2200, 0,
1349                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1350           .vrefresh = 24, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1351         /* 122 - 5120x2160@25Hz 64:27 */
1352         { DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 396000, 5120, 6816,
1353                    6904, 7200, 0, 2160, 2168, 2178, 2200, 0,
1354                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1355           .vrefresh = 25, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1356         /* 123 - 5120x2160@30Hz 64:27 */
1357         { DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 396000, 5120, 5784,
1358                    5872, 6000, 0, 2160, 2168, 2178, 2200, 0,
1359                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1360           .vrefresh = 30, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1361         /* 124 - 5120x2160@48Hz 64:27 */
1362         { DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 742500, 5120, 5866,
1363                    5954, 6250, 0, 2160, 2168, 2178, 2475, 0,
1364                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1365           .vrefresh = 48, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1366         /* 125 - 5120x2160@50Hz 64:27 */
1367         { DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 742500, 5120, 6216,
1368                    6304, 6600, 0, 2160, 2168, 2178, 2250, 0,
1369                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1370           .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1371         /* 126 - 5120x2160@60Hz 64:27 */
1372         { DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 742500, 5120, 5284,
1373                    5372, 5500, 0, 2160, 2168, 2178, 2250, 0,
1374                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1375           .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1376         /* 127 - 5120x2160@100Hz 64:27 */
1377         { DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 1485000, 5120, 6216,
1378                    6304, 6600, 0, 2160, 2168, 2178, 2250, 0,
1379                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1380           .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1381 };
1382
1383 /*
1384  * HDMI 1.4 4k modes. Index using the VIC.
1385  */
1386 static const struct drm_display_mode edid_4k_modes[] = {
1387         /* 0 - dummy, VICs start at 1 */
1388         { },
1389         /* 1 - 3840x2160@30Hz */
1390         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000,
1391                    3840, 4016, 4104, 4400, 0,
1392                    2160, 2168, 2178, 2250, 0,
1393                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1394           .vrefresh = 30, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1395         /* 2 - 3840x2160@25Hz */
1396         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000,
1397                    3840, 4896, 4984, 5280, 0,
1398                    2160, 2168, 2178, 2250, 0,
1399                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1400           .vrefresh = 25, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1401         /* 3 - 3840x2160@24Hz */
1402         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000,
1403                    3840, 5116, 5204, 5500, 0,
1404                    2160, 2168, 2178, 2250, 0,
1405                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1406           .vrefresh = 24, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1407         /* 4 - 4096x2160@24Hz (SMPTE) */
1408         { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 297000,
1409                    4096, 5116, 5204, 5500, 0,
1410                    2160, 2168, 2178, 2250, 0,
1411                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1412           .vrefresh = 24, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1413 };
1414
1415 /*** DDC fetch and block validation ***/
1416
1417 static const u8 edid_header[] = {
1418         0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00
1419 };
1420
1421 /**
1422  * drm_edid_header_is_valid - sanity check the header of the base EDID block
1423  * @raw_edid: pointer to raw base EDID block
1424  *
1425  * Sanity check the header of the base EDID block.
1426  *
1427  * Return: 8 if the header is perfect, down to 0 if it's totally wrong.
1428  */
1429 int drm_edid_header_is_valid(const u8 *raw_edid)
1430 {
1431         int i, score = 0;
1432
1433         for (i = 0; i < sizeof(edid_header); i++)
1434                 if (raw_edid[i] == edid_header[i])
1435                         score++;
1436
1437         return score;
1438 }
1439 EXPORT_SYMBOL(drm_edid_header_is_valid);
1440
1441 static int edid_fixup __read_mostly = 6;
1442 module_param_named(edid_fixup, edid_fixup, int, 0400);
1443 MODULE_PARM_DESC(edid_fixup,
1444                  "Minimum number of valid EDID header bytes (0-8, default 6)");
1445
1446 static void drm_get_displayid(struct drm_connector *connector,
1447                               struct edid *edid);
1448 static int validate_displayid(u8 *displayid, int length, int idx);
1449
1450 static int drm_edid_block_checksum(const u8 *raw_edid)
1451 {
1452         int i;
1453         u8 csum = 0;
1454         for (i = 0; i < EDID_LENGTH; i++)
1455                 csum += raw_edid[i];
1456
1457         return csum;
1458 }
1459
1460 static bool drm_edid_is_zero(const u8 *in_edid, int length)
1461 {
1462         if (memchr_inv(in_edid, 0, length))
1463                 return false;
1464
1465         return true;
1466 }
1467
1468 /**
1469  * drm_edid_block_valid - Sanity check the EDID block (base or extension)
1470  * @raw_edid: pointer to raw EDID block
1471  * @block: type of block to validate (0 for base, extension otherwise)
1472  * @print_bad_edid: if true, dump bad EDID blocks to the console
1473  * @edid_corrupt: if true, the header or checksum is invalid
1474  *
1475  * Validate a base or extension EDID block and optionally dump bad blocks to
1476  * the console.
1477  *
1478  * Return: True if the block is valid, false otherwise.
1479  */
1480 bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid,
1481                           bool *edid_corrupt)
1482 {
1483         u8 csum;
1484         struct edid *edid = (struct edid *)raw_edid;
1485
1486         if (WARN_ON(!raw_edid))
1487                 return false;
1488
1489         if (edid_fixup > 8 || edid_fixup < 0)
1490                 edid_fixup = 6;
1491
1492         if (block == 0) {
1493                 int score = drm_edid_header_is_valid(raw_edid);
1494                 if (score == 8) {
1495                         if (edid_corrupt)
1496                                 *edid_corrupt = false;
1497                 } else if (score >= edid_fixup) {
1498                         /* Displayport Link CTS Core 1.2 rev1.1 test 4.2.2.6
1499                          * The corrupt flag needs to be set here otherwise, the
1500                          * fix-up code here will correct the problem, the
1501                          * checksum is correct and the test fails
1502                          */
1503                         if (edid_corrupt)
1504                                 *edid_corrupt = true;
1505                         DRM_DEBUG("Fixing EDID header, your hardware may be failing\n");
1506                         memcpy(raw_edid, edid_header, sizeof(edid_header));
1507                 } else {
1508                         if (edid_corrupt)
1509                                 *edid_corrupt = true;
1510                         goto bad;
1511                 }
1512         }
1513
1514         csum = drm_edid_block_checksum(raw_edid);
1515         if (csum) {
1516                 if (edid_corrupt)
1517                         *edid_corrupt = true;
1518
1519                 /* allow CEA to slide through, switches mangle this */
1520                 if (raw_edid[0] == CEA_EXT) {
1521                         DRM_DEBUG("EDID checksum is invalid, remainder is %d\n", csum);
1522                         DRM_DEBUG("Assuming a KVM switch modified the CEA block but left the original checksum\n");
1523                 } else {
1524                         if (print_bad_edid)
1525                                 DRM_NOTE("EDID checksum is invalid, remainder is %d\n", csum);
1526
1527                         goto bad;
1528                 }
1529         }
1530
1531         /* per-block-type checks */
1532         switch (raw_edid[0]) {
1533         case 0: /* base */
1534                 if (edid->version != 1) {
1535                         DRM_NOTE("EDID has major version %d, instead of 1\n", edid->version);
1536                         goto bad;
1537                 }
1538
1539                 if (edid->revision > 4)
1540                         DRM_DEBUG("EDID minor > 4, assuming backward compatibility\n");
1541                 break;
1542
1543         default:
1544                 break;
1545         }
1546
1547         return true;
1548
1549 bad:
1550         if (print_bad_edid) {
1551                 if (drm_edid_is_zero(raw_edid, EDID_LENGTH)) {
1552                         pr_notice("EDID block is all zeroes\n");
1553                 } else {
1554                         pr_notice("Raw EDID:\n");
1555                         print_hex_dump(KERN_NOTICE,
1556                                        " \t", DUMP_PREFIX_NONE, 16, 1,
1557                                        raw_edid, EDID_LENGTH, false);
1558                 }
1559         }
1560         return false;
1561 }
1562 EXPORT_SYMBOL(drm_edid_block_valid);
1563
1564 /**
1565  * drm_edid_is_valid - sanity check EDID data
1566  * @edid: EDID data
1567  *
1568  * Sanity-check an entire EDID record (including extensions)
1569  *
1570  * Return: True if the EDID data is valid, false otherwise.
1571  */
1572 bool drm_edid_is_valid(struct edid *edid)
1573 {
1574         int i;
1575         u8 *raw = (u8 *)edid;
1576
1577         if (!edid)
1578                 return false;
1579
1580         for (i = 0; i <= edid->extensions; i++)
1581                 if (!drm_edid_block_valid(raw + i * EDID_LENGTH, i, true, NULL))
1582                         return false;
1583
1584         return true;
1585 }
1586 EXPORT_SYMBOL(drm_edid_is_valid);
1587
1588 #define DDC_SEGMENT_ADDR 0x30
1589 /**
1590  * drm_do_probe_ddc_edid() - get EDID information via I2C
1591  * @data: I2C device adapter
1592  * @buf: EDID data buffer to be filled
1593  * @block: 128 byte EDID block to start fetching from
1594  * @len: EDID data buffer length to fetch
1595  *
1596  * Try to fetch EDID information by calling I2C driver functions.
1597  *
1598  * Return: 0 on success or -1 on failure.
1599  */
1600 static int
1601 drm_do_probe_ddc_edid(void *data, u8 *buf, unsigned int block, size_t len)
1602 {
1603         struct i2c_adapter *adapter = data;
1604         unsigned char start = block * EDID_LENGTH;
1605         unsigned char segment = block >> 1;
1606         unsigned char xfers = segment ? 3 : 2;
1607         int ret, retries = 5;
1608
1609         /*
1610          * The core I2C driver will automatically retry the transfer if the
1611          * adapter reports EAGAIN. However, we find that bit-banging transfers
1612          * are susceptible to errors under a heavily loaded machine and
1613          * generate spurious NAKs and timeouts. Retrying the transfer
1614          * of the individual block a few times seems to overcome this.
1615          */
1616         do {
1617                 struct i2c_msg msgs[] = {
1618                         {
1619                                 .addr   = DDC_SEGMENT_ADDR,
1620                                 .flags  = 0,
1621                                 .len    = 1,
1622                                 .buf    = &segment,
1623                         }, {
1624                                 .addr   = DDC_ADDR,
1625                                 .flags  = 0,
1626                                 .len    = 1,
1627                                 .buf    = &start,
1628                         }, {
1629                                 .addr   = DDC_ADDR,
1630                                 .flags  = I2C_M_RD,
1631                                 .len    = len,
1632                                 .buf    = buf,
1633                         }
1634                 };
1635
1636                 /*
1637                  * Avoid sending the segment addr to not upset non-compliant
1638                  * DDC monitors.
1639                  */
1640                 ret = i2c_transfer(adapter, &msgs[3 - xfers], xfers);
1641
1642                 if (ret == -ENXIO) {
1643                         DRM_DEBUG_KMS("drm: skipping non-existent adapter %s\n",
1644                                         adapter->name);
1645                         break;
1646                 }
1647         } while (ret != xfers && --retries);
1648
1649         return ret == xfers ? 0 : -1;
1650 }
1651
1652 static void connector_bad_edid(struct drm_connector *connector,
1653                                u8 *edid, int num_blocks)
1654 {
1655         int i;
1656
1657         if (connector->bad_edid_counter++ && !drm_debug_enabled(DRM_UT_KMS))
1658                 return;
1659
1660         dev_warn(connector->dev->dev,
1661                  "%s: EDID is invalid:\n",
1662                  connector->name);
1663         for (i = 0; i < num_blocks; i++) {
1664                 u8 *block = edid + i * EDID_LENGTH;
1665                 char prefix[20];
1666
1667                 if (drm_edid_is_zero(block, EDID_LENGTH))
1668                         sprintf(prefix, "\t[%02x] ZERO ", i);
1669                 else if (!drm_edid_block_valid(block, i, false, NULL))
1670                         sprintf(prefix, "\t[%02x] BAD  ", i);
1671                 else
1672                         sprintf(prefix, "\t[%02x] GOOD ", i);
1673
1674                 print_hex_dump(KERN_WARNING,
1675                                prefix, DUMP_PREFIX_NONE, 16, 1,
1676                                block, EDID_LENGTH, false);
1677         }
1678 }
1679
1680 /* Get override or firmware EDID */
1681 static struct edid *drm_get_override_edid(struct drm_connector *connector)
1682 {
1683         struct edid *override = NULL;
1684
1685         if (connector->override_edid)
1686                 override = drm_edid_duplicate(connector->edid_blob_ptr->data);
1687
1688         if (!override)
1689                 override = drm_load_edid_firmware(connector);
1690
1691         return IS_ERR(override) ? NULL : override;
1692 }
1693
1694 /**
1695  * drm_add_override_edid_modes - add modes from override/firmware EDID
1696  * @connector: connector we're probing
1697  *
1698  * Add modes from the override/firmware EDID, if available. Only to be used from
1699  * drm_helper_probe_single_connector_modes() as a fallback for when DDC probe
1700  * failed during drm_get_edid() and caused the override/firmware EDID to be
1701  * skipped.
1702  *
1703  * Return: The number of modes added or 0 if we couldn't find any.
1704  */
1705 int drm_add_override_edid_modes(struct drm_connector *connector)
1706 {
1707         struct edid *override;
1708         int num_modes = 0;
1709
1710         override = drm_get_override_edid(connector);
1711         if (override) {
1712                 drm_connector_update_edid_property(connector, override);
1713                 num_modes = drm_add_edid_modes(connector, override);
1714                 kfree(override);
1715
1716                 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] adding %d modes via fallback override/firmware EDID\n",
1717                               connector->base.id, connector->name, num_modes);
1718         }
1719
1720         return num_modes;
1721 }
1722 EXPORT_SYMBOL(drm_add_override_edid_modes);
1723
1724 /**
1725  * drm_do_get_edid - get EDID data using a custom EDID block read function
1726  * @connector: connector we're probing
1727  * @get_edid_block: EDID block read function
1728  * @data: private data passed to the block read function
1729  *
1730  * When the I2C adapter connected to the DDC bus is hidden behind a device that
1731  * exposes a different interface to read EDID blocks this function can be used
1732  * to get EDID data using a custom block read function.
1733  *
1734  * As in the general case the DDC bus is accessible by the kernel at the I2C
1735  * level, drivers must make all reasonable efforts to expose it as an I2C
1736  * adapter and use drm_get_edid() instead of abusing this function.
1737  *
1738  * The EDID may be overridden using debugfs override_edid or firmare EDID
1739  * (drm_load_edid_firmware() and drm.edid_firmware parameter), in this priority
1740  * order. Having either of them bypasses actual EDID reads.
1741  *
1742  * Return: Pointer to valid EDID or NULL if we couldn't find any.
1743  */
1744 struct edid *drm_do_get_edid(struct drm_connector *connector,
1745         int (*get_edid_block)(void *data, u8 *buf, unsigned int block,
1746                               size_t len),
1747         void *data)
1748 {
1749         int i, j = 0, valid_extensions = 0;
1750         u8 *edid, *new;
1751         struct edid *override;
1752
1753         override = drm_get_override_edid(connector);
1754         if (override)
1755                 return override;
1756
1757         if ((edid = kmalloc(EDID_LENGTH, GFP_KERNEL)) == NULL)
1758                 return NULL;
1759
1760         /* base block fetch */
1761         for (i = 0; i < 4; i++) {
1762                 if (get_edid_block(data, edid, 0, EDID_LENGTH))
1763                         goto out;
1764                 if (drm_edid_block_valid(edid, 0, false,
1765                                          &connector->edid_corrupt))
1766                         break;
1767                 if (i == 0 && drm_edid_is_zero(edid, EDID_LENGTH)) {
1768                         connector->null_edid_counter++;
1769                         goto carp;
1770                 }
1771         }
1772         if (i == 4)
1773                 goto carp;
1774
1775         /* if there's no extensions, we're done */
1776         valid_extensions = edid[0x7e];
1777         if (valid_extensions == 0)
1778                 return (struct edid *)edid;
1779
1780         new = krealloc(edid, (valid_extensions + 1) * EDID_LENGTH, GFP_KERNEL);
1781         if (!new)
1782                 goto out;
1783         edid = new;
1784
1785         for (j = 1; j <= edid[0x7e]; j++) {
1786                 u8 *block = edid + j * EDID_LENGTH;
1787
1788                 for (i = 0; i < 4; i++) {
1789                         if (get_edid_block(data, block, j, EDID_LENGTH))
1790                                 goto out;
1791                         if (drm_edid_block_valid(block, j, false, NULL))
1792                                 break;
1793                 }
1794
1795                 if (i == 4)
1796                         valid_extensions--;
1797         }
1798
1799         if (valid_extensions != edid[0x7e]) {
1800                 u8 *base;
1801
1802                 connector_bad_edid(connector, edid, edid[0x7e] + 1);
1803
1804                 edid[EDID_LENGTH-1] += edid[0x7e] - valid_extensions;
1805                 edid[0x7e] = valid_extensions;
1806
1807                 new = kmalloc_array(valid_extensions + 1, EDID_LENGTH,
1808                                     GFP_KERNEL);
1809                 if (!new)
1810                         goto out;
1811
1812                 base = new;
1813                 for (i = 0; i <= edid[0x7e]; i++) {
1814                         u8 *block = edid + i * EDID_LENGTH;
1815
1816                         if (!drm_edid_block_valid(block, i, false, NULL))
1817                                 continue;
1818
1819                         memcpy(base, block, EDID_LENGTH);
1820                         base += EDID_LENGTH;
1821                 }
1822
1823                 kfree(edid);
1824                 edid = new;
1825         }
1826
1827         return (struct edid *)edid;
1828
1829 carp:
1830         connector_bad_edid(connector, edid, 1);
1831 out:
1832         kfree(edid);
1833         return NULL;
1834 }
1835 EXPORT_SYMBOL_GPL(drm_do_get_edid);
1836
1837 /**
1838  * drm_probe_ddc() - probe DDC presence
1839  * @adapter: I2C adapter to probe
1840  *
1841  * Return: True on success, false on failure.
1842  */
1843 bool
1844 drm_probe_ddc(struct i2c_adapter *adapter)
1845 {
1846         unsigned char out;
1847
1848         return (drm_do_probe_ddc_edid(adapter, &out, 0, 1) == 0);
1849 }
1850 EXPORT_SYMBOL(drm_probe_ddc);
1851
1852 /**
1853  * drm_get_edid - get EDID data, if available
1854  * @connector: connector we're probing
1855  * @adapter: I2C adapter to use for DDC
1856  *
1857  * Poke the given I2C channel to grab EDID data if possible.  If found,
1858  * attach it to the connector.
1859  *
1860  * Return: Pointer to valid EDID or NULL if we couldn't find any.
1861  */
1862 struct edid *drm_get_edid(struct drm_connector *connector,
1863                           struct i2c_adapter *adapter)
1864 {
1865         struct edid *edid;
1866
1867         if (connector->force == DRM_FORCE_OFF)
1868                 return NULL;
1869
1870         if (connector->force == DRM_FORCE_UNSPECIFIED && !drm_probe_ddc(adapter))
1871                 return NULL;
1872
1873         edid = drm_do_get_edid(connector, drm_do_probe_ddc_edid, adapter);
1874         if (edid)
1875                 drm_get_displayid(connector, edid);
1876         return edid;
1877 }
1878 EXPORT_SYMBOL(drm_get_edid);
1879
1880 /**
1881  * drm_get_edid_switcheroo - get EDID data for a vga_switcheroo output
1882  * @connector: connector we're probing
1883  * @adapter: I2C adapter to use for DDC
1884  *
1885  * Wrapper around drm_get_edid() for laptops with dual GPUs using one set of
1886  * outputs. The wrapper adds the requisite vga_switcheroo calls to temporarily
1887  * switch DDC to the GPU which is retrieving EDID.
1888  *
1889  * Return: Pointer to valid EDID or %NULL if we couldn't find any.
1890  */
1891 struct edid *drm_get_edid_switcheroo(struct drm_connector *connector,
1892                                      struct i2c_adapter *adapter)
1893 {
1894         struct pci_dev *pdev = connector->dev->pdev;
1895         struct edid *edid;
1896
1897         vga_switcheroo_lock_ddc(pdev);
1898         edid = drm_get_edid(connector, adapter);
1899         vga_switcheroo_unlock_ddc(pdev);
1900
1901         return edid;
1902 }
1903 EXPORT_SYMBOL(drm_get_edid_switcheroo);
1904
1905 /**
1906  * drm_edid_duplicate - duplicate an EDID and the extensions
1907  * @edid: EDID to duplicate
1908  *
1909  * Return: Pointer to duplicated EDID or NULL on allocation failure.
1910  */
1911 struct edid *drm_edid_duplicate(const struct edid *edid)
1912 {
1913         return kmemdup(edid, (edid->extensions + 1) * EDID_LENGTH, GFP_KERNEL);
1914 }
1915 EXPORT_SYMBOL(drm_edid_duplicate);
1916
1917 /*** EDID parsing ***/
1918
1919 /**
1920  * edid_vendor - match a string against EDID's obfuscated vendor field
1921  * @edid: EDID to match
1922  * @vendor: vendor string
1923  *
1924  * Returns true if @vendor is in @edid, false otherwise
1925  */
1926 static bool edid_vendor(const struct edid *edid, const char *vendor)
1927 {
1928         char edid_vendor[3];
1929
1930         edid_vendor[0] = ((edid->mfg_id[0] & 0x7c) >> 2) + '@';
1931         edid_vendor[1] = (((edid->mfg_id[0] & 0x3) << 3) |
1932                           ((edid->mfg_id[1] & 0xe0) >> 5)) + '@';
1933         edid_vendor[2] = (edid->mfg_id[1] & 0x1f) + '@';
1934
1935         return !strncmp(edid_vendor, vendor, 3);
1936 }
1937
1938 /**
1939  * edid_get_quirks - return quirk flags for a given EDID
1940  * @edid: EDID to process
1941  *
1942  * This tells subsequent routines what fixes they need to apply.
1943  */
1944 static u32 edid_get_quirks(const struct edid *edid)
1945 {
1946         const struct edid_quirk *quirk;
1947         int i;
1948
1949         for (i = 0; i < ARRAY_SIZE(edid_quirk_list); i++) {
1950                 quirk = &edid_quirk_list[i];
1951
1952                 if (edid_vendor(edid, quirk->vendor) &&
1953                     (EDID_PRODUCT_ID(edid) == quirk->product_id))
1954                         return quirk->quirks;
1955         }
1956
1957         return 0;
1958 }
1959
1960 #define MODE_SIZE(m) ((m)->hdisplay * (m)->vdisplay)
1961 #define MODE_REFRESH_DIFF(c,t) (abs((c) - (t)))
1962
1963 /**
1964  * edid_fixup_preferred - set preferred modes based on quirk list
1965  * @connector: has mode list to fix up
1966  * @quirks: quirks list
1967  *
1968  * Walk the mode list for @connector, clearing the preferred status
1969  * on existing modes and setting it anew for the right mode ala @quirks.
1970  */
1971 static void edid_fixup_preferred(struct drm_connector *connector,
1972                                  u32 quirks)
1973 {
1974         struct drm_display_mode *t, *cur_mode, *preferred_mode;
1975         int target_refresh = 0;
1976         int cur_vrefresh, preferred_vrefresh;
1977
1978         if (list_empty(&connector->probed_modes))
1979                 return;
1980
1981         if (quirks & EDID_QUIRK_PREFER_LARGE_60)
1982                 target_refresh = 60;
1983         if (quirks & EDID_QUIRK_PREFER_LARGE_75)
1984                 target_refresh = 75;
1985
1986         preferred_mode = list_first_entry(&connector->probed_modes,
1987                                           struct drm_display_mode, head);
1988
1989         list_for_each_entry_safe(cur_mode, t, &connector->probed_modes, head) {
1990                 cur_mode->type &= ~DRM_MODE_TYPE_PREFERRED;
1991
1992                 if (cur_mode == preferred_mode)
1993                         continue;
1994
1995                 /* Largest mode is preferred */
1996                 if (MODE_SIZE(cur_mode) > MODE_SIZE(preferred_mode))
1997                         preferred_mode = cur_mode;
1998
1999                 cur_vrefresh = cur_mode->vrefresh ?
2000                         cur_mode->vrefresh : drm_mode_vrefresh(cur_mode);
2001                 preferred_vrefresh = preferred_mode->vrefresh ?
2002                         preferred_mode->vrefresh : drm_mode_vrefresh(preferred_mode);
2003                 /* At a given size, try to get closest to target refresh */
2004                 if ((MODE_SIZE(cur_mode) == MODE_SIZE(preferred_mode)) &&
2005                     MODE_REFRESH_DIFF(cur_vrefresh, target_refresh) <
2006                     MODE_REFRESH_DIFF(preferred_vrefresh, target_refresh)) {
2007                         preferred_mode = cur_mode;
2008                 }
2009         }
2010
2011         preferred_mode->type |= DRM_MODE_TYPE_PREFERRED;
2012 }
2013
2014 static bool
2015 mode_is_rb(const struct drm_display_mode *mode)
2016 {
2017         return (mode->htotal - mode->hdisplay == 160) &&
2018                (mode->hsync_end - mode->hdisplay == 80) &&
2019                (mode->hsync_end - mode->hsync_start == 32) &&
2020                (mode->vsync_start - mode->vdisplay == 3);
2021 }
2022
2023 /*
2024  * drm_mode_find_dmt - Create a copy of a mode if present in DMT
2025  * @dev: Device to duplicate against
2026  * @hsize: Mode width
2027  * @vsize: Mode height
2028  * @fresh: Mode refresh rate
2029  * @rb: Mode reduced-blanking-ness
2030  *
2031  * Walk the DMT mode list looking for a match for the given parameters.
2032  *
2033  * Return: A newly allocated copy of the mode, or NULL if not found.
2034  */
2035 struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
2036                                            int hsize, int vsize, int fresh,
2037                                            bool rb)
2038 {
2039         int i;
2040
2041         for (i = 0; i < ARRAY_SIZE(drm_dmt_modes); i++) {
2042                 const struct drm_display_mode *ptr = &drm_dmt_modes[i];
2043                 if (hsize != ptr->hdisplay)
2044                         continue;
2045                 if (vsize != ptr->vdisplay)
2046                         continue;
2047                 if (fresh != drm_mode_vrefresh(ptr))
2048                         continue;
2049                 if (rb != mode_is_rb(ptr))
2050                         continue;
2051
2052                 return drm_mode_duplicate(dev, ptr);
2053         }
2054
2055         return NULL;
2056 }
2057 EXPORT_SYMBOL(drm_mode_find_dmt);
2058
2059 typedef void detailed_cb(struct detailed_timing *timing, void *closure);
2060
2061 static void
2062 cea_for_each_detailed_block(u8 *ext, detailed_cb *cb, void *closure)
2063 {
2064         int i, n = 0;
2065         u8 d = ext[0x02];
2066         u8 *det_base = ext + d;
2067
2068         n = (127 - d) / 18;
2069         for (i = 0; i < n; i++)
2070                 cb((struct detailed_timing *)(det_base + 18 * i), closure);
2071 }
2072
2073 static void
2074 vtb_for_each_detailed_block(u8 *ext, detailed_cb *cb, void *closure)
2075 {
2076         unsigned int i, n = min((int)ext[0x02], 6);
2077         u8 *det_base = ext + 5;
2078
2079         if (ext[0x01] != 1)
2080                 return; /* unknown version */
2081
2082         for (i = 0; i < n; i++)
2083                 cb((struct detailed_timing *)(det_base + 18 * i), closure);
2084 }
2085
2086 static void
2087 drm_for_each_detailed_block(u8 *raw_edid, detailed_cb *cb, void *closure)
2088 {
2089         int i;
2090         struct edid *edid = (struct edid *)raw_edid;
2091
2092         if (edid == NULL)
2093                 return;
2094
2095         for (i = 0; i < EDID_DETAILED_TIMINGS; i++)
2096                 cb(&(edid->detailed_timings[i]), closure);
2097
2098         for (i = 1; i <= raw_edid[0x7e]; i++) {
2099                 u8 *ext = raw_edid + (i * EDID_LENGTH);
2100                 switch (*ext) {
2101                 case CEA_EXT:
2102                         cea_for_each_detailed_block(ext, cb, closure);
2103                         break;
2104                 case VTB_EXT:
2105                         vtb_for_each_detailed_block(ext, cb, closure);
2106                         break;
2107                 default:
2108                         break;
2109                 }
2110         }
2111 }
2112
2113 static void
2114 is_rb(struct detailed_timing *t, void *data)
2115 {
2116         u8 *r = (u8 *)t;
2117         if (r[3] == EDID_DETAIL_MONITOR_RANGE)
2118                 if (r[15] & 0x10)
2119                         *(bool *)data = true;
2120 }
2121
2122 /* EDID 1.4 defines this explicitly.  For EDID 1.3, we guess, badly. */
2123 static bool
2124 drm_monitor_supports_rb(struct edid *edid)
2125 {
2126         if (edid->revision >= 4) {
2127                 bool ret = false;
2128                 drm_for_each_detailed_block((u8 *)edid, is_rb, &ret);
2129                 return ret;
2130         }
2131
2132         return ((edid->input & DRM_EDID_INPUT_DIGITAL) != 0);
2133 }
2134
2135 static void
2136 find_gtf2(struct detailed_timing *t, void *data)
2137 {
2138         u8 *r = (u8 *)t;
2139         if (r[3] == EDID_DETAIL_MONITOR_RANGE && r[10] == 0x02)
2140                 *(u8 **)data = r;
2141 }
2142
2143 /* Secondary GTF curve kicks in above some break frequency */
2144 static int
2145 drm_gtf2_hbreak(struct edid *edid)
2146 {
2147         u8 *r = NULL;
2148         drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
2149         return r ? (r[12] * 2) : 0;
2150 }
2151
2152 static int
2153 drm_gtf2_2c(struct edid *edid)
2154 {
2155         u8 *r = NULL;
2156         drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
2157         return r ? r[13] : 0;
2158 }
2159
2160 static int
2161 drm_gtf2_m(struct edid *edid)
2162 {
2163         u8 *r = NULL;
2164         drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
2165         return r ? (r[15] << 8) + r[14] : 0;
2166 }
2167
2168 static int
2169 drm_gtf2_k(struct edid *edid)
2170 {
2171         u8 *r = NULL;
2172         drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
2173         return r ? r[16] : 0;
2174 }
2175
2176 static int
2177 drm_gtf2_2j(struct edid *edid)
2178 {
2179         u8 *r = NULL;
2180         drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
2181         return r ? r[17] : 0;
2182 }
2183
2184 /**
2185  * standard_timing_level - get std. timing level(CVT/GTF/DMT)
2186  * @edid: EDID block to scan
2187  */
2188 static int standard_timing_level(struct edid *edid)
2189 {
2190         if (edid->revision >= 2) {
2191                 if (edid->revision >= 4 && (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF))
2192                         return LEVEL_CVT;
2193                 if (drm_gtf2_hbreak(edid))
2194                         return LEVEL_GTF2;
2195                 if (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF)
2196                         return LEVEL_GTF;
2197         }
2198         return LEVEL_DMT;
2199 }
2200
2201 /*
2202  * 0 is reserved.  The spec says 0x01 fill for unused timings.  Some old
2203  * monitors fill with ascii space (0x20) instead.
2204  */
2205 static int
2206 bad_std_timing(u8 a, u8 b)
2207 {
2208         return (a == 0x00 && b == 0x00) ||
2209                (a == 0x01 && b == 0x01) ||
2210                (a == 0x20 && b == 0x20);
2211 }
2212
2213 /**
2214  * drm_mode_std - convert standard mode info (width, height, refresh) into mode
2215  * @connector: connector of for the EDID block
2216  * @edid: EDID block to scan
2217  * @t: standard timing params
2218  *
2219  * Take the standard timing params (in this case width, aspect, and refresh)
2220  * and convert them into a real mode using CVT/GTF/DMT.
2221  */
2222 static struct drm_display_mode *
2223 drm_mode_std(struct drm_connector *connector, struct edid *edid,
2224              struct std_timing *t)
2225 {
2226         struct drm_device *dev = connector->dev;
2227         struct drm_display_mode *m, *mode = NULL;
2228         int hsize, vsize;
2229         int vrefresh_rate;
2230         unsigned aspect_ratio = (t->vfreq_aspect & EDID_TIMING_ASPECT_MASK)
2231                 >> EDID_TIMING_ASPECT_SHIFT;
2232         unsigned vfreq = (t->vfreq_aspect & EDID_TIMING_VFREQ_MASK)
2233                 >> EDID_TIMING_VFREQ_SHIFT;
2234         int timing_level = standard_timing_level(edid);
2235
2236         if (bad_std_timing(t->hsize, t->vfreq_aspect))
2237                 return NULL;
2238
2239         /* According to the EDID spec, the hdisplay = hsize * 8 + 248 */
2240         hsize = t->hsize * 8 + 248;
2241         /* vrefresh_rate = vfreq + 60 */
2242         vrefresh_rate = vfreq + 60;
2243         /* the vdisplay is calculated based on the aspect ratio */
2244         if (aspect_ratio == 0) {
2245                 if (edid->revision < 3)
2246                         vsize = hsize;
2247                 else
2248                         vsize = (hsize * 10) / 16;
2249         } else if (aspect_ratio == 1)
2250                 vsize = (hsize * 3) / 4;
2251         else if (aspect_ratio == 2)
2252                 vsize = (hsize * 4) / 5;
2253         else
2254                 vsize = (hsize * 9) / 16;
2255
2256         /* HDTV hack, part 1 */
2257         if (vrefresh_rate == 60 &&
2258             ((hsize == 1360 && vsize == 765) ||
2259              (hsize == 1368 && vsize == 769))) {
2260                 hsize = 1366;
2261                 vsize = 768;
2262         }
2263
2264         /*
2265          * If this connector already has a mode for this size and refresh
2266          * rate (because it came from detailed or CVT info), use that
2267          * instead.  This way we don't have to guess at interlace or
2268          * reduced blanking.
2269          */
2270         list_for_each_entry(m, &connector->probed_modes, head)
2271                 if (m->hdisplay == hsize && m->vdisplay == vsize &&
2272                     drm_mode_vrefresh(m) == vrefresh_rate)
2273                         return NULL;
2274
2275         /* HDTV hack, part 2 */
2276         if (hsize == 1366 && vsize == 768 && vrefresh_rate == 60) {
2277                 mode = drm_cvt_mode(dev, 1366, 768, vrefresh_rate, 0, 0,
2278                                     false);
2279                 if (!mode)
2280                         return NULL;
2281                 mode->hdisplay = 1366;
2282                 mode->hsync_start = mode->hsync_start - 1;
2283                 mode->hsync_end = mode->hsync_end - 1;
2284                 return mode;
2285         }
2286
2287         /* check whether it can be found in default mode table */
2288         if (drm_monitor_supports_rb(edid)) {
2289                 mode = drm_mode_find_dmt(dev, hsize, vsize, vrefresh_rate,
2290                                          true);
2291                 if (mode)
2292                         return mode;
2293         }
2294         mode = drm_mode_find_dmt(dev, hsize, vsize, vrefresh_rate, false);
2295         if (mode)
2296                 return mode;
2297
2298         /* okay, generate it */
2299         switch (timing_level) {
2300         case LEVEL_DMT:
2301                 break;
2302         case LEVEL_GTF:
2303                 mode = drm_gtf_mode(dev, hsize, vsize, vrefresh_rate, 0, 0);
2304                 break;
2305         case LEVEL_GTF2:
2306                 /*
2307                  * This is potentially wrong if there's ever a monitor with
2308                  * more than one ranges section, each claiming a different
2309                  * secondary GTF curve.  Please don't do that.
2310                  */
2311                 mode = drm_gtf_mode(dev, hsize, vsize, vrefresh_rate, 0, 0);
2312                 if (!mode)
2313                         return NULL;
2314                 if (drm_mode_hsync(mode) > drm_gtf2_hbreak(edid)) {
2315                         drm_mode_destroy(dev, mode);
2316                         mode = drm_gtf_mode_complex(dev, hsize, vsize,
2317                                                     vrefresh_rate, 0, 0,
2318                                                     drm_gtf2_m(edid),
2319                                                     drm_gtf2_2c(edid),
2320                                                     drm_gtf2_k(edid),
2321                                                     drm_gtf2_2j(edid));
2322                 }
2323                 break;
2324         case LEVEL_CVT:
2325                 mode = drm_cvt_mode(dev, hsize, vsize, vrefresh_rate, 0, 0,
2326                                     false);
2327                 break;
2328         }
2329         return mode;
2330 }
2331
2332 /*
2333  * EDID is delightfully ambiguous about how interlaced modes are to be
2334  * encoded.  Our internal representation is of frame height, but some
2335  * HDTV detailed timings are encoded as field height.
2336  *
2337  * The format list here is from CEA, in frame size.  Technically we
2338  * should be checking refresh rate too.  Whatever.
2339  */
2340 static void
2341 drm_mode_do_interlace_quirk(struct drm_display_mode *mode,
2342                             struct detailed_pixel_timing *pt)
2343 {
2344         int i;
2345         static const struct {
2346                 int w, h;
2347         } cea_interlaced[] = {
2348                 { 1920, 1080 },
2349                 {  720,  480 },
2350                 { 1440,  480 },
2351                 { 2880,  480 },
2352                 {  720,  576 },
2353                 { 1440,  576 },
2354                 { 2880,  576 },
2355         };
2356
2357         if (!(pt->misc & DRM_EDID_PT_INTERLACED))
2358                 return;
2359
2360         for (i = 0; i < ARRAY_SIZE(cea_interlaced); i++) {
2361                 if ((mode->hdisplay == cea_interlaced[i].w) &&
2362                     (mode->vdisplay == cea_interlaced[i].h / 2)) {
2363                         mode->vdisplay *= 2;
2364                         mode->vsync_start *= 2;
2365                         mode->vsync_end *= 2;
2366                         mode->vtotal *= 2;
2367                         mode->vtotal |= 1;
2368                 }
2369         }
2370
2371         mode->flags |= DRM_MODE_FLAG_INTERLACE;
2372 }
2373
2374 /**
2375  * drm_mode_detailed - create a new mode from an EDID detailed timing section
2376  * @dev: DRM device (needed to create new mode)
2377  * @edid: EDID block
2378  * @timing: EDID detailed timing info
2379  * @quirks: quirks to apply
2380  *
2381  * An EDID detailed timing block contains enough info for us to create and
2382  * return a new struct drm_display_mode.
2383  */
2384 static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev,
2385                                                   struct edid *edid,
2386                                                   struct detailed_timing *timing,
2387                                                   u32 quirks)
2388 {
2389         struct drm_display_mode *mode;
2390         struct detailed_pixel_timing *pt = &timing->data.pixel_data;
2391         unsigned hactive = (pt->hactive_hblank_hi & 0xf0) << 4 | pt->hactive_lo;
2392         unsigned vactive = (pt->vactive_vblank_hi & 0xf0) << 4 | pt->vactive_lo;
2393         unsigned hblank = (pt->hactive_hblank_hi & 0xf) << 8 | pt->hblank_lo;
2394         unsigned vblank = (pt->vactive_vblank_hi & 0xf) << 8 | pt->vblank_lo;
2395         unsigned hsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc0) << 2 | pt->hsync_offset_lo;
2396         unsigned hsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x30) << 4 | pt->hsync_pulse_width_lo;
2397         unsigned vsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc) << 2 | pt->vsync_offset_pulse_width_lo >> 4;
2398         unsigned vsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x3) << 4 | (pt->vsync_offset_pulse_width_lo & 0xf);
2399
2400         /* ignore tiny modes */
2401         if (hactive < 64 || vactive < 64)
2402                 return NULL;
2403
2404         if (pt->misc & DRM_EDID_PT_STEREO) {
2405                 DRM_DEBUG_KMS("stereo mode not supported\n");
2406                 return NULL;
2407         }
2408         if (!(pt->misc & DRM_EDID_PT_SEPARATE_SYNC)) {
2409                 DRM_DEBUG_KMS("composite sync not supported\n");
2410         }
2411
2412         /* it is incorrect if hsync/vsync width is zero */
2413         if (!hsync_pulse_width || !vsync_pulse_width) {
2414                 DRM_DEBUG_KMS("Incorrect Detailed timing. "
2415                                 "Wrong Hsync/Vsync pulse width\n");
2416                 return NULL;
2417         }
2418
2419         if (quirks & EDID_QUIRK_FORCE_REDUCED_BLANKING) {
2420                 mode = drm_cvt_mode(dev, hactive, vactive, 60, true, false, false);
2421                 if (!mode)
2422                         return NULL;
2423
2424                 goto set_size;
2425         }
2426
2427         mode = drm_mode_create(dev);
2428         if (!mode)
2429                 return NULL;
2430
2431         if (quirks & EDID_QUIRK_135_CLOCK_TOO_HIGH)
2432                 timing->pixel_clock = cpu_to_le16(1088);
2433
2434         mode->clock = le16_to_cpu(timing->pixel_clock) * 10;
2435
2436         mode->hdisplay = hactive;
2437         mode->hsync_start = mode->hdisplay + hsync_offset;
2438         mode->hsync_end = mode->hsync_start + hsync_pulse_width;
2439         mode->htotal = mode->hdisplay + hblank;
2440
2441         mode->vdisplay = vactive;
2442         mode->vsync_start = mode->vdisplay + vsync_offset;
2443         mode->vsync_end = mode->vsync_start + vsync_pulse_width;
2444         mode->vtotal = mode->vdisplay + vblank;
2445
2446         /* Some EDIDs have bogus h/vtotal values */
2447         if (mode->hsync_end > mode->htotal)
2448                 mode->htotal = mode->hsync_end + 1;
2449         if (mode->vsync_end > mode->vtotal)
2450                 mode->vtotal = mode->vsync_end + 1;
2451
2452         drm_mode_do_interlace_quirk(mode, pt);
2453
2454         if (quirks & EDID_QUIRK_DETAILED_SYNC_PP) {
2455                 pt->misc |= DRM_EDID_PT_HSYNC_POSITIVE | DRM_EDID_PT_VSYNC_POSITIVE;
2456         }
2457
2458         mode->flags |= (pt->misc & DRM_EDID_PT_HSYNC_POSITIVE) ?
2459                 DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
2460         mode->flags |= (pt->misc & DRM_EDID_PT_VSYNC_POSITIVE) ?
2461                 DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
2462
2463 set_size:
2464         mode->width_mm = pt->width_mm_lo | (pt->width_height_mm_hi & 0xf0) << 4;
2465         mode->height_mm = pt->height_mm_lo | (pt->width_height_mm_hi & 0xf) << 8;
2466
2467         if (quirks & EDID_QUIRK_DETAILED_IN_CM) {
2468                 mode->width_mm *= 10;
2469                 mode->height_mm *= 10;
2470         }
2471
2472         if (quirks & EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE) {
2473                 mode->width_mm = edid->width_cm * 10;
2474                 mode->height_mm = edid->height_cm * 10;
2475         }
2476
2477         mode->type = DRM_MODE_TYPE_DRIVER;
2478         mode->vrefresh = drm_mode_vrefresh(mode);
2479         drm_mode_set_name(mode);
2480
2481         return mode;
2482 }
2483
2484 static bool
2485 mode_in_hsync_range(const struct drm_display_mode *mode,
2486                     struct edid *edid, u8 *t)
2487 {
2488         int hsync, hmin, hmax;
2489
2490         hmin = t[7];
2491         if (edid->revision >= 4)
2492             hmin += ((t[4] & 0x04) ? 255 : 0);
2493         hmax = t[8];
2494         if (edid->revision >= 4)
2495             hmax += ((t[4] & 0x08) ? 255 : 0);
2496         hsync = drm_mode_hsync(mode);
2497
2498         return (hsync <= hmax && hsync >= hmin);
2499 }
2500
2501 static bool
2502 mode_in_vsync_range(const struct drm_display_mode *mode,
2503                     struct edid *edid, u8 *t)
2504 {
2505         int vsync, vmin, vmax;
2506
2507         vmin = t[5];
2508         if (edid->revision >= 4)
2509             vmin += ((t[4] & 0x01) ? 255 : 0);
2510         vmax = t[6];
2511         if (edid->revision >= 4)
2512             vmax += ((t[4] & 0x02) ? 255 : 0);
2513         vsync = drm_mode_vrefresh(mode);
2514
2515         return (vsync <= vmax && vsync >= vmin);
2516 }
2517
2518 static u32
2519 range_pixel_clock(struct edid *edid, u8 *t)
2520 {
2521         /* unspecified */
2522         if (t[9] == 0 || t[9] == 255)
2523                 return 0;
2524
2525         /* 1.4 with CVT support gives us real precision, yay */
2526         if (edid->revision >= 4 && t[10] == 0x04)
2527                 return (t[9] * 10000) - ((t[12] >> 2) * 250);
2528
2529         /* 1.3 is pathetic, so fuzz up a bit */
2530         return t[9] * 10000 + 5001;
2531 }
2532
2533 static bool
2534 mode_in_range(const struct drm_display_mode *mode, struct edid *edid,
2535               struct detailed_timing *timing)
2536 {
2537         u32 max_clock;
2538         u8 *t = (u8 *)timing;
2539
2540         if (!mode_in_hsync_range(mode, edid, t))
2541                 return false;
2542
2543         if (!mode_in_vsync_range(mode, edid, t))
2544                 return false;
2545
2546         if ((max_clock = range_pixel_clock(edid, t)))
2547                 if (mode->clock > max_clock)
2548                         return false;
2549
2550         /* 1.4 max horizontal check */
2551         if (edid->revision >= 4 && t[10] == 0x04)
2552                 if (t[13] && mode->hdisplay > 8 * (t[13] + (256 * (t[12]&0x3))))
2553                         return false;
2554
2555         if (mode_is_rb(mode) && !drm_monitor_supports_rb(edid))
2556                 return false;
2557
2558         return true;
2559 }
2560
2561 static bool valid_inferred_mode(const struct drm_connector *connector,
2562                                 const struct drm_display_mode *mode)
2563 {
2564         const struct drm_display_mode *m;
2565         bool ok = false;
2566
2567         list_for_each_entry(m, &connector->probed_modes, head) {
2568                 if (mode->hdisplay == m->hdisplay &&
2569                     mode->vdisplay == m->vdisplay &&
2570                     drm_mode_vrefresh(mode) == drm_mode_vrefresh(m))
2571                         return false; /* duplicated */
2572                 if (mode->hdisplay <= m->hdisplay &&
2573                     mode->vdisplay <= m->vdisplay)
2574                         ok = true;
2575         }
2576         return ok;
2577 }
2578
2579 static int
2580 drm_dmt_modes_for_range(struct drm_connector *connector, struct edid *edid,
2581                         struct detailed_timing *timing)
2582 {
2583         int i, modes = 0;
2584         struct drm_display_mode *newmode;
2585         struct drm_device *dev = connector->dev;
2586
2587         for (i = 0; i < ARRAY_SIZE(drm_dmt_modes); i++) {
2588                 if (mode_in_range(drm_dmt_modes + i, edid, timing) &&
2589                     valid_inferred_mode(connector, drm_dmt_modes + i)) {
2590                         newmode = drm_mode_duplicate(dev, &drm_dmt_modes[i]);
2591                         if (newmode) {
2592                                 drm_mode_probed_add(connector, newmode);
2593                                 modes++;
2594                         }
2595                 }
2596         }
2597
2598         return modes;
2599 }
2600
2601 /* fix up 1366x768 mode from 1368x768;
2602  * GFT/CVT can't express 1366 width which isn't dividable by 8
2603  */
2604 void drm_mode_fixup_1366x768(struct drm_display_mode *mode)
2605 {
2606         if (mode->hdisplay == 1368 && mode->vdisplay == 768) {
2607                 mode->hdisplay = 1366;
2608                 mode->hsync_start--;
2609                 mode->hsync_end--;
2610                 drm_mode_set_name(mode);
2611         }
2612 }
2613
2614 static int
2615 drm_gtf_modes_for_range(struct drm_connector *connector, struct edid *edid,
2616                         struct detailed_timing *timing)
2617 {
2618         int i, modes = 0;
2619         struct drm_display_mode *newmode;
2620         struct drm_device *dev = connector->dev;
2621
2622         for (i = 0; i < ARRAY_SIZE(extra_modes); i++) {
2623                 const struct minimode *m = &extra_modes[i];
2624                 newmode = drm_gtf_mode(dev, m->w, m->h, m->r, 0, 0);
2625                 if (!newmode)
2626                         return modes;
2627
2628                 drm_mode_fixup_1366x768(newmode);
2629                 if (!mode_in_range(newmode, edid, timing) ||
2630                     !valid_inferred_mode(connector, newmode)) {
2631                         drm_mode_destroy(dev, newmode);
2632                         continue;
2633                 }
2634
2635                 drm_mode_probed_add(connector, newmode);
2636                 modes++;
2637         }
2638
2639         return modes;
2640 }
2641
2642 static int
2643 drm_cvt_modes_for_range(struct drm_connector *connector, struct edid *edid,
2644                         struct detailed_timing *timing)
2645 {
2646         int i, modes = 0;
2647         struct drm_display_mode *newmode;
2648         struct drm_device *dev = connector->dev;
2649         bool rb = drm_monitor_supports_rb(edid);
2650
2651         for (i = 0; i < ARRAY_SIZE(extra_modes); i++) {
2652                 const struct minimode *m = &extra_modes[i];
2653                 newmode = drm_cvt_mode(dev, m->w, m->h, m->r, rb, 0, 0);
2654                 if (!newmode)
2655                         return modes;
2656
2657                 drm_mode_fixup_1366x768(newmode);
2658                 if (!mode_in_range(newmode, edid, timing) ||
2659                     !valid_inferred_mode(connector, newmode)) {
2660                         drm_mode_destroy(dev, newmode);
2661                         continue;
2662                 }
2663
2664                 drm_mode_probed_add(connector, newmode);
2665                 modes++;
2666         }
2667
2668         return modes;
2669 }
2670
2671 static void
2672 do_inferred_modes(struct detailed_timing *timing, void *c)
2673 {
2674         struct detailed_mode_closure *closure = c;
2675         struct detailed_non_pixel *data = &timing->data.other_data;
2676         struct detailed_data_monitor_range *range = &data->data.range;
2677
2678         if (data->type != EDID_DETAIL_MONITOR_RANGE)
2679                 return;
2680
2681         closure->modes += drm_dmt_modes_for_range(closure->connector,
2682                                                   closure->edid,
2683                                                   timing);
2684         
2685         if (!version_greater(closure->edid, 1, 1))
2686                 return; /* GTF not defined yet */
2687
2688         switch (range->flags) {
2689         case 0x02: /* secondary gtf, XXX could do more */
2690         case 0x00: /* default gtf */
2691                 closure->modes += drm_gtf_modes_for_range(closure->connector,
2692                                                           closure->edid,
2693                                                           timing);
2694                 break;
2695         case 0x04: /* cvt, only in 1.4+ */
2696                 if (!version_greater(closure->edid, 1, 3))
2697                         break;
2698
2699                 closure->modes += drm_cvt_modes_for_range(closure->connector,
2700                                                           closure->edid,
2701                                                           timing);
2702                 break;
2703         case 0x01: /* just the ranges, no formula */
2704         default:
2705                 break;
2706         }
2707 }
2708
2709 static int
2710 add_inferred_modes(struct drm_connector *connector, struct edid *edid)
2711 {
2712         struct detailed_mode_closure closure = {
2713                 .connector = connector,
2714                 .edid = edid,
2715         };
2716
2717         if (version_greater(edid, 1, 0))
2718                 drm_for_each_detailed_block((u8 *)edid, do_inferred_modes,
2719                                             &closure);
2720
2721         return closure.modes;
2722 }
2723
2724 static int
2725 drm_est3_modes(struct drm_connector *connector, struct detailed_timing *timing)
2726 {
2727         int i, j, m, modes = 0;
2728         struct drm_display_mode *mode;
2729         u8 *est = ((u8 *)timing) + 6;
2730
2731         for (i = 0; i < 6; i++) {
2732                 for (j = 7; j >= 0; j--) {
2733                         m = (i * 8) + (7 - j);
2734                         if (m >= ARRAY_SIZE(est3_modes))
2735                                 break;
2736                         if (est[i] & (1 << j)) {
2737                                 mode = drm_mode_find_dmt(connector->dev,
2738                                                          est3_modes[m].w,
2739                                                          est3_modes[m].h,
2740                                                          est3_modes[m].r,
2741                                                          est3_modes[m].rb);
2742                                 if (mode) {
2743                                         drm_mode_probed_add(connector, mode);
2744                                         modes++;
2745                                 }
2746                         }
2747                 }
2748         }
2749
2750         return modes;
2751 }
2752
2753 static void
2754 do_established_modes(struct detailed_timing *timing, void *c)
2755 {
2756         struct detailed_mode_closure *closure = c;
2757         struct detailed_non_pixel *data = &timing->data.other_data;
2758
2759         if (data->type == EDID_DETAIL_EST_TIMINGS)
2760                 closure->modes += drm_est3_modes(closure->connector, timing);
2761 }
2762
2763 /**
2764  * add_established_modes - get est. modes from EDID and add them
2765  * @connector: connector to add mode(s) to
2766  * @edid: EDID block to scan
2767  *
2768  * Each EDID block contains a bitmap of the supported "established modes" list
2769  * (defined above).  Tease them out and add them to the global modes list.
2770  */
2771 static int
2772 add_established_modes(struct drm_connector *connector, struct edid *edid)
2773 {
2774         struct drm_device *dev = connector->dev;
2775         unsigned long est_bits = edid->established_timings.t1 |
2776                 (edid->established_timings.t2 << 8) |
2777                 ((edid->established_timings.mfg_rsvd & 0x80) << 9);
2778         int i, modes = 0;
2779         struct detailed_mode_closure closure = {
2780                 .connector = connector,
2781                 .edid = edid,
2782         };
2783
2784         for (i = 0; i <= EDID_EST_TIMINGS; i++) {
2785                 if (est_bits & (1<<i)) {
2786                         struct drm_display_mode *newmode;
2787                         newmode = drm_mode_duplicate(dev, &edid_est_modes[i]);
2788                         if (newmode) {
2789                                 drm_mode_probed_add(connector, newmode);
2790                                 modes++;
2791                         }
2792                 }
2793         }
2794
2795         if (version_greater(edid, 1, 0))
2796                     drm_for_each_detailed_block((u8 *)edid,
2797                                                 do_established_modes, &closure);
2798
2799         return modes + closure.modes;
2800 }
2801
2802 static void
2803 do_standard_modes(struct detailed_timing *timing, void *c)
2804 {
2805         struct detailed_mode_closure *closure = c;
2806         struct detailed_non_pixel *data = &timing->data.other_data;
2807         struct drm_connector *connector = closure->connector;
2808         struct edid *edid = closure->edid;
2809
2810         if (data->type == EDID_DETAIL_STD_MODES) {
2811                 int i;
2812                 for (i = 0; i < 6; i++) {
2813                         struct std_timing *std;
2814                         struct drm_display_mode *newmode;
2815
2816                         std = &data->data.timings[i];
2817                         newmode = drm_mode_std(connector, edid, std);
2818                         if (newmode) {
2819                                 drm_mode_probed_add(connector, newmode);
2820                                 closure->modes++;
2821                         }
2822                 }
2823         }
2824 }
2825
2826 /**
2827  * add_standard_modes - get std. modes from EDID and add them
2828  * @connector: connector to add mode(s) to
2829  * @edid: EDID block to scan
2830  *
2831  * Standard modes can be calculated using the appropriate standard (DMT,
2832  * GTF or CVT. Grab them from @edid and add them to the list.
2833  */
2834 static int
2835 add_standard_modes(struct drm_connector *connector, struct edid *edid)
2836 {
2837         int i, modes = 0;
2838         struct detailed_mode_closure closure = {
2839                 .connector = connector,
2840                 .edid = edid,
2841         };
2842
2843         for (i = 0; i < EDID_STD_TIMINGS; i++) {
2844                 struct drm_display_mode *newmode;
2845
2846                 newmode = drm_mode_std(connector, edid,
2847                                        &edid->standard_timings[i]);
2848                 if (newmode) {
2849                         drm_mode_probed_add(connector, newmode);
2850                         modes++;
2851                 }
2852         }
2853
2854         if (version_greater(edid, 1, 0))
2855                 drm_for_each_detailed_block((u8 *)edid, do_standard_modes,
2856                                             &closure);
2857
2858         /* XXX should also look for standard codes in VTB blocks */
2859
2860         return modes + closure.modes;
2861 }
2862
2863 static int drm_cvt_modes(struct drm_connector *connector,
2864                          struct detailed_timing *timing)
2865 {
2866         int i, j, modes = 0;
2867         struct drm_display_mode *newmode;
2868         struct drm_device *dev = connector->dev;
2869         struct cvt_timing *cvt;
2870         const int rates[] = { 60, 85, 75, 60, 50 };
2871         const u8 empty[3] = { 0, 0, 0 };
2872
2873         for (i = 0; i < 4; i++) {
2874                 int uninitialized_var(width), height;
2875                 cvt = &(timing->data.other_data.data.cvt[i]);
2876
2877                 if (!memcmp(cvt->code, empty, 3))
2878                         continue;
2879
2880                 height = (cvt->code[0] + ((cvt->code[1] & 0xf0) << 4) + 1) * 2;
2881                 switch (cvt->code[1] & 0x0c) {
2882                 case 0x00:
2883                         width = height * 4 / 3;
2884                         break;
2885                 case 0x04:
2886                         width = height * 16 / 9;
2887                         break;
2888                 case 0x08:
2889                         width = height * 16 / 10;
2890                         break;
2891                 case 0x0c:
2892                         width = height * 15 / 9;
2893                         break;
2894                 }
2895
2896                 for (j = 1; j < 5; j++) {
2897                         if (cvt->code[2] & (1 << j)) {
2898                                 newmode = drm_cvt_mode(dev, width, height,
2899                                                        rates[j], j == 0,
2900                                                        false, false);
2901                                 if (newmode) {
2902                                         drm_mode_probed_add(connector, newmode);
2903                                         modes++;
2904                                 }
2905                         }
2906                 }
2907         }
2908
2909         return modes;
2910 }
2911
2912 static void
2913 do_cvt_mode(struct detailed_timing *timing, void *c)
2914 {
2915         struct detailed_mode_closure *closure = c;
2916         struct detailed_non_pixel *data = &timing->data.other_data;
2917
2918         if (data->type == EDID_DETAIL_CVT_3BYTE)
2919                 closure->modes += drm_cvt_modes(closure->connector, timing);
2920 }
2921
2922 static int
2923 add_cvt_modes(struct drm_connector *connector, struct edid *edid)
2924 {       
2925         struct detailed_mode_closure closure = {
2926                 .connector = connector,
2927                 .edid = edid,
2928         };
2929
2930         if (version_greater(edid, 1, 2))
2931                 drm_for_each_detailed_block((u8 *)edid, do_cvt_mode, &closure);
2932
2933         /* XXX should also look for CVT codes in VTB blocks */
2934
2935         return closure.modes;
2936 }
2937
2938 static void fixup_detailed_cea_mode_clock(struct drm_display_mode *mode);
2939
2940 static void
2941 do_detailed_mode(struct detailed_timing *timing, void *c)
2942 {
2943         struct detailed_mode_closure *closure = c;
2944         struct drm_display_mode *newmode;
2945
2946         if (timing->pixel_clock) {
2947                 newmode = drm_mode_detailed(closure->connector->dev,
2948                                             closure->edid, timing,
2949                                             closure->quirks);
2950                 if (!newmode)
2951                         return;
2952
2953                 if (closure->preferred)
2954                         newmode->type |= DRM_MODE_TYPE_PREFERRED;
2955
2956                 /*
2957                  * Detailed modes are limited to 10kHz pixel clock resolution,
2958                  * so fix up anything that looks like CEA/HDMI mode, but the clock
2959                  * is just slightly off.
2960                  */
2961                 fixup_detailed_cea_mode_clock(newmode);
2962
2963                 drm_mode_probed_add(closure->connector, newmode);
2964                 closure->modes++;
2965                 closure->preferred = false;
2966         }
2967 }
2968
2969 /*
2970  * add_detailed_modes - Add modes from detailed timings
2971  * @connector: attached connector
2972  * @edid: EDID block to scan
2973  * @quirks: quirks to apply
2974  */
2975 static int
2976 add_detailed_modes(struct drm_connector *connector, struct edid *edid,
2977                    u32 quirks)
2978 {
2979         struct detailed_mode_closure closure = {
2980                 .connector = connector,
2981                 .edid = edid,
2982                 .preferred = true,
2983                 .quirks = quirks,
2984         };
2985
2986         if (closure.preferred && !version_greater(edid, 1, 3))
2987                 closure.preferred =
2988                     (edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING);
2989
2990         drm_for_each_detailed_block((u8 *)edid, do_detailed_mode, &closure);
2991
2992         return closure.modes;
2993 }
2994
2995 #define AUDIO_BLOCK     0x01
2996 #define VIDEO_BLOCK     0x02
2997 #define VENDOR_BLOCK    0x03
2998 #define SPEAKER_BLOCK   0x04
2999 #define HDR_STATIC_METADATA_BLOCK       0x6
3000 #define USE_EXTENDED_TAG 0x07
3001 #define EXT_VIDEO_CAPABILITY_BLOCK 0x00
3002 #define EXT_VIDEO_DATA_BLOCK_420        0x0E
3003 #define EXT_VIDEO_CAP_BLOCK_Y420CMDB 0x0F
3004 #define EDID_BASIC_AUDIO        (1 << 6)
3005 #define EDID_CEA_YCRCB444       (1 << 5)
3006 #define EDID_CEA_YCRCB422       (1 << 4)
3007 #define EDID_CEA_VCDB_QS        (1 << 6)
3008
3009 /*
3010  * Search EDID for CEA extension block.
3011  */
3012 static u8 *drm_find_edid_extension(const struct edid *edid, int ext_id)
3013 {
3014         u8 *edid_ext = NULL;
3015         int i;
3016
3017         /* No EDID or EDID extensions */
3018         if (edid == NULL || edid->extensions == 0)
3019                 return NULL;
3020
3021         /* Find CEA extension */
3022         for (i = 0; i < edid->extensions; i++) {
3023                 edid_ext = (u8 *)edid + EDID_LENGTH * (i + 1);
3024                 if (edid_ext[0] == ext_id)
3025                         break;
3026         }
3027
3028         if (i == edid->extensions)
3029                 return NULL;
3030
3031         return edid_ext;
3032 }
3033
3034
3035 static u8 *drm_find_displayid_extension(const struct edid *edid)
3036 {
3037         return drm_find_edid_extension(edid, DISPLAYID_EXT);
3038 }
3039
3040 static u8 *drm_find_cea_extension(const struct edid *edid)
3041 {
3042         int ret;
3043         int idx = 1;
3044         int length = EDID_LENGTH;
3045         struct displayid_block *block;
3046         u8 *cea;
3047         u8 *displayid;
3048
3049         /* Look for a top level CEA extension block */
3050         cea = drm_find_edid_extension(edid, CEA_EXT);
3051         if (cea)
3052                 return cea;
3053
3054         /* CEA blocks can also be found embedded in a DisplayID block */
3055         displayid = drm_find_displayid_extension(edid);
3056         if (!displayid)
3057                 return NULL;
3058
3059         ret = validate_displayid(displayid, length, idx);
3060         if (ret)
3061                 return NULL;
3062
3063         idx += sizeof(struct displayid_hdr);
3064         for_each_displayid_db(displayid, block, idx, length) {
3065                 if (block->tag == DATA_BLOCK_CTA) {
3066                         cea = (u8 *)block;
3067                         break;
3068                 }
3069         }
3070
3071         return cea;
3072 }
3073
3074 /*
3075  * Calculate the alternate clock for the CEA mode
3076  * (60Hz vs. 59.94Hz etc.)
3077  */
3078 static unsigned int
3079 cea_mode_alternate_clock(const struct drm_display_mode *cea_mode)
3080 {
3081         unsigned int clock = cea_mode->clock;
3082
3083         if (cea_mode->vrefresh % 6 != 0)
3084                 return clock;
3085
3086         /*
3087          * edid_cea_modes contains the 59.94Hz
3088          * variant for 240 and 480 line modes,
3089          * and the 60Hz variant otherwise.
3090          */
3091         if (cea_mode->vdisplay == 240 || cea_mode->vdisplay == 480)
3092                 clock = DIV_ROUND_CLOSEST(clock * 1001, 1000);
3093         else
3094                 clock = DIV_ROUND_CLOSEST(clock * 1000, 1001);
3095
3096         return clock;
3097 }
3098
3099 static bool
3100 cea_mode_alternate_timings(u8 vic, struct drm_display_mode *mode)
3101 {
3102         /*
3103          * For certain VICs the spec allows the vertical
3104          * front porch to vary by one or two lines.
3105          *
3106          * cea_modes[] stores the variant with the shortest
3107          * vertical front porch. We can adjust the mode to
3108          * get the other variants by simply increasing the
3109          * vertical front porch length.
3110          */
3111         BUILD_BUG_ON(edid_cea_modes[8].vtotal != 262 ||
3112                      edid_cea_modes[9].vtotal != 262 ||
3113                      edid_cea_modes[12].vtotal != 262 ||
3114                      edid_cea_modes[13].vtotal != 262 ||
3115                      edid_cea_modes[23].vtotal != 312 ||
3116                      edid_cea_modes[24].vtotal != 312 ||
3117                      edid_cea_modes[27].vtotal != 312 ||
3118                      edid_cea_modes[28].vtotal != 312);
3119
3120         if (((vic == 8 || vic == 9 ||
3121               vic == 12 || vic == 13) && mode->vtotal < 263) ||
3122             ((vic == 23 || vic == 24 ||
3123               vic == 27 || vic == 28) && mode->vtotal < 314)) {
3124                 mode->vsync_start++;
3125                 mode->vsync_end++;
3126                 mode->vtotal++;
3127
3128                 return true;
3129         }
3130
3131         return false;
3132 }
3133
3134 static u8 drm_match_cea_mode_clock_tolerance(const struct drm_display_mode *to_match,
3135                                              unsigned int clock_tolerance)
3136 {
3137         unsigned int match_flags = DRM_MODE_MATCH_TIMINGS | DRM_MODE_MATCH_FLAGS;
3138         u8 vic;
3139
3140         if (!to_match->clock)
3141                 return 0;
3142
3143         if (to_match->picture_aspect_ratio)
3144                 match_flags |= DRM_MODE_MATCH_ASPECT_RATIO;
3145
3146         for (vic = 1; vic < ARRAY_SIZE(edid_cea_modes); vic++) {
3147                 struct drm_display_mode cea_mode = edid_cea_modes[vic];
3148                 unsigned int clock1, clock2;
3149
3150                 /* Check both 60Hz and 59.94Hz */
3151                 clock1 = cea_mode.clock;
3152                 clock2 = cea_mode_alternate_clock(&cea_mode);
3153
3154                 if (abs(to_match->clock - clock1) > clock_tolerance &&
3155                     abs(to_match->clock - clock2) > clock_tolerance)
3156                         continue;
3157
3158                 do {
3159                         if (drm_mode_match(to_match, &cea_mode, match_flags))
3160                                 return vic;
3161                 } while (cea_mode_alternate_timings(vic, &cea_mode));
3162         }
3163
3164         return 0;
3165 }
3166
3167 /**
3168  * drm_match_cea_mode - look for a CEA mode matching given mode
3169  * @to_match: display mode
3170  *
3171  * Return: The CEA Video ID (VIC) of the mode or 0 if it isn't a CEA-861
3172  * mode.
3173  */
3174 u8 drm_match_cea_mode(const struct drm_display_mode *to_match)
3175 {
3176         unsigned int match_flags = DRM_MODE_MATCH_TIMINGS | DRM_MODE_MATCH_FLAGS;
3177         u8 vic;
3178
3179         if (!to_match->clock)
3180                 return 0;
3181
3182         if (to_match->picture_aspect_ratio)
3183                 match_flags |= DRM_MODE_MATCH_ASPECT_RATIO;
3184
3185         for (vic = 1; vic < ARRAY_SIZE(edid_cea_modes); vic++) {
3186                 struct drm_display_mode cea_mode = edid_cea_modes[vic];
3187                 unsigned int clock1, clock2;
3188
3189                 /* Check both 60Hz and 59.94Hz */
3190                 clock1 = cea_mode.clock;
3191                 clock2 = cea_mode_alternate_clock(&cea_mode);
3192
3193                 if (KHZ2PICOS(to_match->clock) != KHZ2PICOS(clock1) &&
3194                     KHZ2PICOS(to_match->clock) != KHZ2PICOS(clock2))
3195                         continue;
3196
3197                 do {
3198                         if (drm_mode_match(to_match, &cea_mode, match_flags))
3199                                 return vic;
3200                 } while (cea_mode_alternate_timings(vic, &cea_mode));
3201         }
3202
3203         return 0;
3204 }
3205 EXPORT_SYMBOL(drm_match_cea_mode);
3206
3207 static bool drm_valid_cea_vic(u8 vic)
3208 {
3209         return vic > 0 && vic < ARRAY_SIZE(edid_cea_modes);
3210 }
3211
3212 static enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code)
3213 {
3214         return edid_cea_modes[video_code].picture_aspect_ratio;
3215 }
3216
3217 static enum hdmi_picture_aspect drm_get_hdmi_aspect_ratio(const u8 video_code)
3218 {
3219         return edid_4k_modes[video_code].picture_aspect_ratio;
3220 }
3221
3222 /*
3223  * Calculate the alternate clock for HDMI modes (those from the HDMI vendor
3224  * specific block).
3225  */
3226 static unsigned int
3227 hdmi_mode_alternate_clock(const struct drm_display_mode *hdmi_mode)
3228 {
3229         return cea_mode_alternate_clock(hdmi_mode);
3230 }
3231
3232 static u8 drm_match_hdmi_mode_clock_tolerance(const struct drm_display_mode *to_match,
3233                                               unsigned int clock_tolerance)
3234 {
3235         unsigned int match_flags = DRM_MODE_MATCH_TIMINGS | DRM_MODE_MATCH_FLAGS;
3236         u8 vic;
3237
3238         if (!to_match->clock)
3239                 return 0;
3240
3241         if (to_match->picture_aspect_ratio)
3242                 match_flags |= DRM_MODE_MATCH_ASPECT_RATIO;
3243
3244         for (vic = 1; vic < ARRAY_SIZE(edid_4k_modes); vic++) {
3245                 const struct drm_display_mode *hdmi_mode = &edid_4k_modes[vic];
3246                 unsigned int clock1, clock2;
3247
3248                 /* Make sure to also match alternate clocks */
3249                 clock1 = hdmi_mode->clock;
3250                 clock2 = hdmi_mode_alternate_clock(hdmi_mode);
3251
3252                 if (abs(to_match->clock - clock1) > clock_tolerance &&
3253                     abs(to_match->clock - clock2) > clock_tolerance)
3254                         continue;
3255
3256                 if (drm_mode_match(to_match, hdmi_mode, match_flags))
3257                         return vic;
3258         }
3259
3260         return 0;
3261 }
3262
3263 /*
3264  * drm_match_hdmi_mode - look for a HDMI mode matching given mode
3265  * @to_match: display mode
3266  *
3267  * An HDMI mode is one defined in the HDMI vendor specific block.
3268  *
3269  * Returns the HDMI Video ID (VIC) of the mode or 0 if it isn't one.
3270  */
3271 static u8 drm_match_hdmi_mode(const struct drm_display_mode *to_match)
3272 {
3273         unsigned int match_flags = DRM_MODE_MATCH_TIMINGS | DRM_MODE_MATCH_FLAGS;
3274         u8 vic;
3275
3276         if (!to_match->clock)
3277                 return 0;
3278
3279         if (to_match->picture_aspect_ratio)
3280                 match_flags |= DRM_MODE_MATCH_ASPECT_RATIO;
3281
3282         for (vic = 1; vic < ARRAY_SIZE(edid_4k_modes); vic++) {
3283                 const struct drm_display_mode *hdmi_mode = &edid_4k_modes[vic];
3284                 unsigned int clock1, clock2;
3285
3286                 /* Make sure to also match alternate clocks */
3287                 clock1 = hdmi_mode->clock;
3288                 clock2 = hdmi_mode_alternate_clock(hdmi_mode);
3289
3290                 if ((KHZ2PICOS(to_match->clock) == KHZ2PICOS(clock1) ||
3291                      KHZ2PICOS(to_match->clock) == KHZ2PICOS(clock2)) &&
3292                     drm_mode_match(to_match, hdmi_mode, match_flags))
3293                         return vic;
3294         }
3295         return 0;
3296 }
3297
3298 static bool drm_valid_hdmi_vic(u8 vic)
3299 {
3300         return vic > 0 && vic < ARRAY_SIZE(edid_4k_modes);
3301 }
3302
3303 static int
3304 add_alternate_cea_modes(struct drm_connector *connector, struct edid *edid)
3305 {
3306         struct drm_device *dev = connector->dev;
3307         struct drm_display_mode *mode, *tmp;
3308         LIST_HEAD(list);
3309         int modes = 0;
3310
3311         /* Don't add CEA modes if the CEA extension block is missing */
3312         if (!drm_find_cea_extension(edid))
3313                 return 0;
3314
3315         /*
3316          * Go through all probed modes and create a new mode
3317          * with the alternate clock for certain CEA modes.
3318          */
3319         list_for_each_entry(mode, &connector->probed_modes, head) {
3320                 const struct drm_display_mode *cea_mode = NULL;
3321                 struct drm_display_mode *newmode;
3322                 u8 vic = drm_match_cea_mode(mode);
3323                 unsigned int clock1, clock2;
3324
3325                 if (drm_valid_cea_vic(vic)) {
3326                         cea_mode = &edid_cea_modes[vic];
3327                         clock2 = cea_mode_alternate_clock(cea_mode);
3328                 } else {
3329                         vic = drm_match_hdmi_mode(mode);
3330                         if (drm_valid_hdmi_vic(vic)) {
3331                                 cea_mode = &edid_4k_modes[vic];
3332                                 clock2 = hdmi_mode_alternate_clock(cea_mode);
3333                         }
3334                 }
3335
3336                 if (!cea_mode)
3337                         continue;
3338
3339                 clock1 = cea_mode->clock;
3340
3341                 if (clock1 == clock2)
3342                         continue;
3343
3344                 if (mode->clock != clock1 && mode->clock != clock2)
3345                         continue;
3346
3347                 newmode = drm_mode_duplicate(dev, cea_mode);
3348                 if (!newmode)
3349                         continue;
3350
3351                 /* Carry over the stereo flags */
3352                 newmode->flags |= mode->flags & DRM_MODE_FLAG_3D_MASK;
3353
3354                 /*
3355                  * The current mode could be either variant. Make
3356                  * sure to pick the "other" clock for the new mode.
3357                  */
3358                 if (mode->clock != clock1)
3359                         newmode->clock = clock1;
3360                 else
3361                         newmode->clock = clock2;
3362
3363                 list_add_tail(&newmode->head, &list);
3364         }
3365
3366         list_for_each_entry_safe(mode, tmp, &list, head) {
3367                 list_del(&mode->head);
3368                 drm_mode_probed_add(connector, mode);
3369                 modes++;
3370         }
3371
3372         return modes;
3373 }
3374
3375 static u8 svd_to_vic(u8 svd)
3376 {
3377         /* 0-6 bit vic, 7th bit native mode indicator */
3378         if ((svd >= 1 &&  svd <= 64) || (svd >= 129 && svd <= 192))
3379                 return svd & 127;
3380
3381         return svd;
3382 }
3383
3384 static struct drm_display_mode *
3385 drm_display_mode_from_vic_index(struct drm_connector *connector,
3386                                 const u8 *video_db, u8 video_len,
3387                                 u8 video_index)
3388 {
3389         struct drm_device *dev = connector->dev;
3390         struct drm_display_mode *newmode;
3391         u8 vic;
3392
3393         if (video_db == NULL || video_index >= video_len)
3394                 return NULL;
3395
3396         /* CEA modes are numbered 1..127 */
3397         vic = svd_to_vic(video_db[video_index]);
3398         if (!drm_valid_cea_vic(vic))
3399                 return NULL;
3400
3401         newmode = drm_mode_duplicate(dev, &edid_cea_modes[vic]);
3402         if (!newmode)
3403                 return NULL;
3404
3405         newmode->vrefresh = 0;
3406
3407         return newmode;
3408 }
3409
3410 /*
3411  * do_y420vdb_modes - Parse YCBCR 420 only modes
3412  * @connector: connector corresponding to the HDMI sink
3413  * @svds: start of the data block of CEA YCBCR 420 VDB
3414  * @len: length of the CEA YCBCR 420 VDB
3415  *
3416  * Parse the CEA-861-F YCBCR 420 Video Data Block (Y420VDB)
3417  * which contains modes which can be supported in YCBCR 420
3418  * output format only.
3419  */
3420 static int do_y420vdb_modes(struct drm_connector *connector,
3421                             const u8 *svds, u8 svds_len)
3422 {
3423         int modes = 0, i;
3424         struct drm_device *dev = connector->dev;
3425         struct drm_display_info *info = &connector->display_info;
3426         struct drm_hdmi_info *hdmi = &info->hdmi;
3427
3428         for (i = 0; i < svds_len; i++) {
3429                 u8 vic = svd_to_vic(svds[i]);
3430                 struct drm_display_mode *newmode;
3431
3432                 if (!drm_valid_cea_vic(vic))
3433                         continue;
3434
3435                 newmode = drm_mode_duplicate(dev, &edid_cea_modes[vic]);
3436                 if (!newmode)
3437                         break;
3438                 bitmap_set(hdmi->y420_vdb_modes, vic, 1);
3439                 drm_mode_probed_add(connector, newmode);
3440                 modes++;
3441         }
3442
3443         if (modes > 0)
3444                 info->color_formats |= DRM_COLOR_FORMAT_YCRCB420;
3445         return modes;
3446 }
3447
3448 /*
3449  * drm_add_cmdb_modes - Add a YCBCR 420 mode into bitmap
3450  * @connector: connector corresponding to the HDMI sink
3451  * @vic: CEA vic for the video mode to be added in the map
3452  *
3453  * Makes an entry for a videomode in the YCBCR 420 bitmap
3454  */
3455 static void
3456 drm_add_cmdb_modes(struct drm_connector *connector, u8 svd)
3457 {
3458         u8 vic = svd_to_vic(svd);
3459         struct drm_hdmi_info *hdmi = &connector->display_info.hdmi;
3460
3461         if (!drm_valid_cea_vic(vic))
3462                 return;
3463
3464         bitmap_set(hdmi->y420_cmdb_modes, vic, 1);
3465 }
3466
3467 static int
3468 do_cea_modes(struct drm_connector *connector, const u8 *db, u8 len)
3469 {
3470         int i, modes = 0;
3471         struct drm_hdmi_info *hdmi = &connector->display_info.hdmi;
3472
3473         for (i = 0; i < len; i++) {
3474                 struct drm_display_mode *mode;
3475                 mode = drm_display_mode_from_vic_index(connector, db, len, i);
3476                 if (mode) {
3477                         /*
3478                          * YCBCR420 capability block contains a bitmap which
3479                          * gives the index of CEA modes from CEA VDB, which
3480                          * can support YCBCR 420 sampling output also (apart
3481                          * from RGB/YCBCR444 etc).
3482                          * For example, if the bit 0 in bitmap is set,
3483                          * first mode in VDB can support YCBCR420 output too.
3484                          * Add YCBCR420 modes only if sink is HDMI 2.0 capable.
3485                          */
3486                         if (i < 64 && hdmi->y420_cmdb_map & (1ULL << i))
3487                                 drm_add_cmdb_modes(connector, db[i]);
3488
3489                         drm_mode_probed_add(connector, mode);
3490                         modes++;
3491                 }
3492         }
3493
3494         return modes;
3495 }
3496
3497 struct stereo_mandatory_mode {
3498         int width, height, vrefresh;
3499         unsigned int flags;
3500 };
3501
3502 static const struct stereo_mandatory_mode stereo_mandatory_modes[] = {
3503         { 1920, 1080, 24, DRM_MODE_FLAG_3D_TOP_AND_BOTTOM },
3504         { 1920, 1080, 24, DRM_MODE_FLAG_3D_FRAME_PACKING },
3505         { 1920, 1080, 50,
3506           DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF },
3507         { 1920, 1080, 60,
3508           DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF },
3509         { 1280, 720,  50, DRM_MODE_FLAG_3D_TOP_AND_BOTTOM },
3510         { 1280, 720,  50, DRM_MODE_FLAG_3D_FRAME_PACKING },
3511         { 1280, 720,  60, DRM_MODE_FLAG_3D_TOP_AND_BOTTOM },
3512         { 1280, 720,  60, DRM_MODE_FLAG_3D_FRAME_PACKING }
3513 };
3514
3515 static bool
3516 stereo_match_mandatory(const struct drm_display_mode *mode,
3517                        const struct stereo_mandatory_mode *stereo_mode)
3518 {
3519         unsigned int interlaced = mode->flags & DRM_MODE_FLAG_INTERLACE;
3520
3521         return mode->hdisplay == stereo_mode->width &&
3522                mode->vdisplay == stereo_mode->height &&
3523                interlaced == (stereo_mode->flags & DRM_MODE_FLAG_INTERLACE) &&
3524                drm_mode_vrefresh(mode) == stereo_mode->vrefresh;
3525 }
3526
3527 static int add_hdmi_mandatory_stereo_modes(struct drm_connector *connector)
3528 {
3529         struct drm_device *dev = connector->dev;
3530         const struct drm_display_mode *mode;
3531         struct list_head stereo_modes;
3532         int modes = 0, i;
3533
3534         INIT_LIST_HEAD(&stereo_modes);
3535
3536         list_for_each_entry(mode, &connector->probed_modes, head) {
3537                 for (i = 0; i < ARRAY_SIZE(stereo_mandatory_modes); i++) {
3538                         const struct stereo_mandatory_mode *mandatory;
3539                         struct drm_display_mode *new_mode;
3540
3541                         if (!stereo_match_mandatory(mode,
3542                                                     &stereo_mandatory_modes[i]))
3543                                 continue;
3544
3545                         mandatory = &stereo_mandatory_modes[i];
3546                         new_mode = drm_mode_duplicate(dev, mode);
3547                         if (!new_mode)
3548                                 continue;
3549
3550                         new_mode->flags |= mandatory->flags;
3551                         list_add_tail(&new_mode->head, &stereo_modes);
3552                         modes++;
3553                 }
3554         }
3555
3556         list_splice_tail(&stereo_modes, &connector->probed_modes);
3557
3558         return modes;
3559 }
3560
3561 static int add_hdmi_mode(struct drm_connector *connector, u8 vic)
3562 {
3563         struct drm_device *dev = connector->dev;
3564         struct drm_display_mode *newmode;
3565
3566         if (!drm_valid_hdmi_vic(vic)) {
3567                 DRM_ERROR("Unknown HDMI VIC: %d\n", vic);
3568                 return 0;
3569         }
3570
3571         newmode = drm_mode_duplicate(dev, &edid_4k_modes[vic]);
3572         if (!newmode)
3573                 return 0;
3574
3575         drm_mode_probed_add(connector, newmode);
3576
3577         return 1;
3578 }
3579
3580 static int add_3d_struct_modes(struct drm_connector *connector, u16 structure,
3581                                const u8 *video_db, u8 video_len, u8 video_index)
3582 {
3583         struct drm_display_mode *newmode;
3584         int modes = 0;
3585
3586         if (structure & (1 << 0)) {
3587                 newmode = drm_display_mode_from_vic_index(connector, video_db,
3588                                                           video_len,
3589                                                           video_index);
3590                 if (newmode) {
3591                         newmode->flags |= DRM_MODE_FLAG_3D_FRAME_PACKING;
3592                         drm_mode_probed_add(connector, newmode);
3593                         modes++;
3594                 }
3595         }
3596         if (structure & (1 << 6)) {
3597                 newmode = drm_display_mode_from_vic_index(connector, video_db,
3598                                                           video_len,
3599                                                           video_index);
3600                 if (newmode) {
3601                         newmode->flags |= DRM_MODE_FLAG_3D_TOP_AND_BOTTOM;
3602                         drm_mode_probed_add(connector, newmode);
3603                         modes++;
3604                 }
3605         }
3606         if (structure & (1 << 8)) {
3607                 newmode = drm_display_mode_from_vic_index(connector, video_db,
3608                                                           video_len,
3609                                                           video_index);
3610                 if (newmode) {
3611                         newmode->flags |= DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF;
3612                         drm_mode_probed_add(connector, newmode);
3613                         modes++;
3614                 }
3615         }
3616
3617         return modes;
3618 }
3619
3620 /*
3621  * do_hdmi_vsdb_modes - Parse the HDMI Vendor Specific data block
3622  * @connector: connector corresponding to the HDMI sink
3623  * @db: start of the CEA vendor specific block
3624  * @len: length of the CEA block payload, ie. one can access up to db[len]
3625  *
3626  * Parses the HDMI VSDB looking for modes to add to @connector. This function
3627  * also adds the stereo 3d modes when applicable.
3628  */
3629 static int
3630 do_hdmi_vsdb_modes(struct drm_connector *connector, const u8 *db, u8 len,
3631                    const u8 *video_db, u8 video_len)
3632 {
3633         struct drm_display_info *info = &connector->display_info;
3634         int modes = 0, offset = 0, i, multi_present = 0, multi_len;
3635         u8 vic_len, hdmi_3d_len = 0;
3636         u16 mask;
3637         u16 structure_all;
3638
3639         if (len < 8)
3640                 goto out;
3641
3642         /* no HDMI_Video_Present */
3643         if (!(db[8] & (1 << 5)))
3644                 goto out;
3645
3646         /* Latency_Fields_Present */
3647         if (db[8] & (1 << 7))
3648                 offset += 2;
3649
3650         /* I_Latency_Fields_Present */
3651         if (db[8] & (1 << 6))
3652                 offset += 2;
3653
3654         /* the declared length is not long enough for the 2 first bytes
3655          * of additional video format capabilities */
3656         if (len < (8 + offset + 2))
3657                 goto out;
3658
3659         /* 3D_Present */
3660         offset++;
3661         if (db[8 + offset] & (1 << 7)) {
3662                 modes += add_hdmi_mandatory_stereo_modes(connector);
3663
3664                 /* 3D_Multi_present */
3665                 multi_present = (db[8 + offset] & 0x60) >> 5;
3666         }
3667
3668         offset++;
3669         vic_len = db[8 + offset] >> 5;
3670         hdmi_3d_len = db[8 + offset] & 0x1f;
3671
3672         for (i = 0; i < vic_len && len >= (9 + offset + i); i++) {
3673                 u8 vic;
3674
3675                 vic = db[9 + offset + i];
3676                 modes += add_hdmi_mode(connector, vic);
3677         }
3678         offset += 1 + vic_len;
3679
3680         if (multi_present == 1)
3681                 multi_len = 2;
3682         else if (multi_present == 2)
3683                 multi_len = 4;
3684         else
3685                 multi_len = 0;
3686
3687         if (len < (8 + offset + hdmi_3d_len - 1))
3688                 goto out;
3689
3690         if (hdmi_3d_len < multi_len)
3691                 goto out;
3692
3693         if (multi_present == 1 || multi_present == 2) {
3694                 /* 3D_Structure_ALL */
3695                 structure_all = (db[8 + offset] << 8) | db[9 + offset];
3696
3697                 /* check if 3D_MASK is present */
3698                 if (multi_present == 2)
3699                         mask = (db[10 + offset] << 8) | db[11 + offset];
3700                 else
3701                         mask = 0xffff;
3702
3703                 for (i = 0; i < 16; i++) {
3704                         if (mask & (1 << i))
3705                                 modes += add_3d_struct_modes(connector,
3706                                                 structure_all,
3707                                                 video_db,
3708                                                 video_len, i);
3709                 }
3710         }
3711
3712         offset += multi_len;
3713
3714         for (i = 0; i < (hdmi_3d_len - multi_len); i++) {
3715                 int vic_index;
3716                 struct drm_display_mode *newmode = NULL;
3717                 unsigned int newflag = 0;
3718                 bool detail_present;
3719
3720                 detail_present = ((db[8 + offset + i] & 0x0f) > 7);
3721
3722                 if (detail_present && (i + 1 == hdmi_3d_len - multi_len))
3723                         break;
3724
3725                 /* 2D_VIC_order_X */
3726                 vic_index = db[8 + offset + i] >> 4;
3727
3728                 /* 3D_Structure_X */
3729                 switch (db[8 + offset + i] & 0x0f) {
3730                 case 0:
3731                         newflag = DRM_MODE_FLAG_3D_FRAME_PACKING;
3732                         break;
3733                 case 6:
3734                         newflag = DRM_MODE_FLAG_3D_TOP_AND_BOTTOM;
3735                         break;
3736                 case 8:
3737                         /* 3D_Detail_X */
3738                         if ((db[9 + offset + i] >> 4) == 1)
3739                                 newflag = DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF;
3740                         break;
3741                 }
3742
3743                 if (newflag != 0) {
3744                         newmode = drm_display_mode_from_vic_index(connector,
3745                                                                   video_db,
3746                                                                   video_len,
3747                                                                   vic_index);
3748
3749                         if (newmode) {
3750                                 newmode->flags |= newflag;
3751                                 drm_mode_probed_add(connector, newmode);
3752                                 modes++;
3753                         }
3754                 }
3755
3756                 if (detail_present)
3757                         i++;
3758         }
3759
3760 out:
3761         if (modes > 0)
3762                 info->has_hdmi_infoframe = true;
3763         return modes;
3764 }
3765
3766 static int
3767 cea_db_payload_len(const u8 *db)
3768 {
3769         return db[0] & 0x1f;
3770 }
3771
3772 static int
3773 cea_db_extended_tag(const u8 *db)
3774 {
3775         return db[1];
3776 }
3777
3778 static int
3779 cea_db_tag(const u8 *db)
3780 {
3781         return db[0] >> 5;
3782 }
3783
3784 static int
3785 cea_revision(const u8 *cea)
3786 {
3787         return cea[1];
3788 }
3789
3790 static int
3791 cea_db_offsets(const u8 *cea, int *start, int *end)
3792 {
3793         /* DisplayID CTA extension blocks and top-level CEA EDID
3794          * block header definitions differ in the following bytes:
3795          *   1) Byte 2 of the header specifies length differently,
3796          *   2) Byte 3 is only present in the CEA top level block.
3797          *
3798          * The different definitions for byte 2 follow.
3799          *
3800          * DisplayID CTA extension block defines byte 2 as:
3801          *   Number of payload bytes
3802          *
3803          * CEA EDID block defines byte 2 as:
3804          *   Byte number (decimal) within this block where the 18-byte
3805          *   DTDs begin. If no non-DTD data is present in this extension
3806          *   block, the value should be set to 04h (the byte after next).
3807          *   If set to 00h, there are no DTDs present in this block and
3808          *   no non-DTD data.
3809          */
3810         if (cea[0] == DATA_BLOCK_CTA) {
3811                 *start = 3;
3812                 *end = *start + cea[2];
3813         } else if (cea[0] == CEA_EXT) {
3814                 /* Data block offset in CEA extension block */
3815                 *start = 4;
3816                 *end = cea[2];
3817                 if (*end == 0)
3818                         *end = 127;
3819                 if (*end < 4 || *end > 127)
3820                         return -ERANGE;
3821         } else {
3822                 return -EOPNOTSUPP;
3823         }
3824
3825         return 0;
3826 }
3827
3828 static bool cea_db_is_hdmi_vsdb(const u8 *db)
3829 {
3830         int hdmi_id;
3831
3832         if (cea_db_tag(db) != VENDOR_BLOCK)
3833                 return false;
3834
3835         if (cea_db_payload_len(db) < 5)
3836                 return false;
3837
3838         hdmi_id = db[1] | (db[2] << 8) | (db[3] << 16);
3839
3840         return hdmi_id == HDMI_IEEE_OUI;
3841 }
3842
3843 static bool cea_db_is_hdmi_forum_vsdb(const u8 *db)
3844 {
3845         unsigned int oui;
3846
3847         if (cea_db_tag(db) != VENDOR_BLOCK)
3848                 return false;
3849
3850         if (cea_db_payload_len(db) < 7)
3851                 return false;
3852
3853         oui = db[3] << 16 | db[2] << 8 | db[1];
3854
3855         return oui == HDMI_FORUM_IEEE_OUI;
3856 }
3857
3858 static bool cea_db_is_vcdb(const u8 *db)
3859 {
3860         if (cea_db_tag(db) != USE_EXTENDED_TAG)
3861                 return false;
3862
3863         if (cea_db_payload_len(db) != 2)
3864                 return false;
3865
3866         if (cea_db_extended_tag(db) != EXT_VIDEO_CAPABILITY_BLOCK)
3867                 return false;
3868
3869         return true;
3870 }
3871
3872 static bool cea_db_is_y420cmdb(const u8 *db)
3873 {
3874         if (cea_db_tag(db) != USE_EXTENDED_TAG)
3875                 return false;
3876
3877         if (!cea_db_payload_len(db))
3878                 return false;
3879
3880         if (cea_db_extended_tag(db) != EXT_VIDEO_CAP_BLOCK_Y420CMDB)
3881                 return false;
3882
3883         return true;
3884 }
3885
3886 static bool cea_db_is_y420vdb(const u8 *db)
3887 {
3888         if (cea_db_tag(db) != USE_EXTENDED_TAG)
3889                 return false;
3890
3891         if (!cea_db_payload_len(db))
3892                 return false;
3893
3894         if (cea_db_extended_tag(db) != EXT_VIDEO_DATA_BLOCK_420)
3895                 return false;
3896
3897         return true;
3898 }
3899
3900 #define for_each_cea_db(cea, i, start, end) \
3901         for ((i) = (start); (i) < (end) && (i) + cea_db_payload_len(&(cea)[(i)]) < (end); (i) += cea_db_payload_len(&(cea)[(i)]) + 1)
3902
3903 static void drm_parse_y420cmdb_bitmap(struct drm_connector *connector,
3904                                       const u8 *db)
3905 {
3906         struct drm_display_info *info = &connector->display_info;
3907         struct drm_hdmi_info *hdmi = &info->hdmi;
3908         u8 map_len = cea_db_payload_len(db) - 1;
3909         u8 count;
3910         u64 map = 0;
3911
3912         if (map_len == 0) {
3913                 /* All CEA modes support ycbcr420 sampling also.*/
3914                 hdmi->y420_cmdb_map = U64_MAX;
3915                 info->color_formats |= DRM_COLOR_FORMAT_YCRCB420;
3916                 return;
3917         }
3918
3919         /*
3920          * This map indicates which of the existing CEA block modes
3921          * from VDB can support YCBCR420 output too. So if bit=0 is
3922          * set, first mode from VDB can support YCBCR420 output too.
3923          * We will parse and keep this map, before parsing VDB itself
3924          * to avoid going through the same block again and again.
3925          *
3926          * Spec is not clear about max possible size of this block.
3927          * Clamping max bitmap block size at 8 bytes. Every byte can
3928          * address 8 CEA modes, in this way this map can address
3929          * 8*8 = first 64 SVDs.
3930          */
3931         if (WARN_ON_ONCE(map_len > 8))
3932                 map_len = 8;
3933
3934         for (count = 0; count < map_len; count++)
3935                 map |= (u64)db[2 + count] << (8 * count);
3936
3937         if (map)
3938                 info->color_formats |= DRM_COLOR_FORMAT_YCRCB420;
3939
3940         hdmi->y420_cmdb_map = map;
3941 }
3942
3943 static int
3944 add_cea_modes(struct drm_connector *connector, struct edid *edid)
3945 {
3946         const u8 *cea = drm_find_cea_extension(edid);
3947         const u8 *db, *hdmi = NULL, *video = NULL;
3948         u8 dbl, hdmi_len, video_len = 0;
3949         int modes = 0;
3950
3951         if (cea && cea_revision(cea) >= 3) {
3952                 int i, start, end;
3953
3954                 if (cea_db_offsets(cea, &start, &end))
3955                         return 0;
3956
3957                 for_each_cea_db(cea, i, start, end) {
3958                         db = &cea[i];
3959                         dbl = cea_db_payload_len(db);
3960
3961                         if (cea_db_tag(db) == VIDEO_BLOCK) {
3962                                 video = db + 1;
3963                                 video_len = dbl;
3964                                 modes += do_cea_modes(connector, video, dbl);
3965                         } else if (cea_db_is_hdmi_vsdb(db)) {
3966                                 hdmi = db;
3967                                 hdmi_len = dbl;
3968                         } else if (cea_db_is_y420vdb(db)) {
3969                                 const u8 *vdb420 = &db[2];
3970
3971                                 /* Add 4:2:0(only) modes present in EDID */
3972                                 modes += do_y420vdb_modes(connector,
3973                                                           vdb420,
3974                                                           dbl - 1);
3975                         }
3976                 }
3977         }
3978
3979         /*
3980          * We parse the HDMI VSDB after having added the cea modes as we will
3981          * be patching their flags when the sink supports stereo 3D.
3982          */
3983         if (hdmi)
3984                 modes += do_hdmi_vsdb_modes(connector, hdmi, hdmi_len, video,
3985                                             video_len);
3986
3987         return modes;
3988 }
3989
3990 static void fixup_detailed_cea_mode_clock(struct drm_display_mode *mode)
3991 {
3992         const struct drm_display_mode *cea_mode;
3993         int clock1, clock2, clock;
3994         u8 vic;
3995         const char *type;
3996
3997         /*
3998          * allow 5kHz clock difference either way to account for
3999          * the 10kHz clock resolution limit of detailed timings.
4000          */
4001         vic = drm_match_cea_mode_clock_tolerance(mode, 5);
4002         if (drm_valid_cea_vic(vic)) {
4003                 type = "CEA";
4004                 cea_mode = &edid_cea_modes[vic];
4005                 clock1 = cea_mode->clock;
4006                 clock2 = cea_mode_alternate_clock(cea_mode);
4007         } else {
4008                 vic = drm_match_hdmi_mode_clock_tolerance(mode, 5);
4009                 if (drm_valid_hdmi_vic(vic)) {
4010                         type = "HDMI";
4011                         cea_mode = &edid_4k_modes[vic];
4012                         clock1 = cea_mode->clock;
4013                         clock2 = hdmi_mode_alternate_clock(cea_mode);
4014                 } else {
4015                         return;
4016                 }
4017         }
4018
4019         /* pick whichever is closest */
4020         if (abs(mode->clock - clock1) < abs(mode->clock - clock2))
4021                 clock = clock1;
4022         else
4023                 clock = clock2;
4024
4025         if (mode->clock == clock)
4026                 return;
4027
4028         DRM_DEBUG("detailed mode matches %s VIC %d, adjusting clock %d -> %d\n",
4029                   type, vic, mode->clock, clock);
4030         mode->clock = clock;
4031 }
4032
4033 static bool cea_db_is_hdmi_hdr_metadata_block(const u8 *db)
4034 {
4035         if (cea_db_tag(db) != USE_EXTENDED_TAG)
4036                 return false;
4037
4038         if (db[1] != HDR_STATIC_METADATA_BLOCK)
4039                 return false;
4040
4041         if (cea_db_payload_len(db) < 3)
4042                 return false;
4043
4044         return true;
4045 }
4046
4047 static uint8_t eotf_supported(const u8 *edid_ext)
4048 {
4049         return edid_ext[2] &
4050                 (BIT(HDMI_EOTF_TRADITIONAL_GAMMA_SDR) |
4051                  BIT(HDMI_EOTF_TRADITIONAL_GAMMA_HDR) |
4052                  BIT(HDMI_EOTF_SMPTE_ST2084) |
4053                  BIT(HDMI_EOTF_BT_2100_HLG));
4054 }
4055
4056 static uint8_t hdr_metadata_type(const u8 *edid_ext)
4057 {
4058         return edid_ext[3] &
4059                 BIT(HDMI_STATIC_METADATA_TYPE1);
4060 }
4061
4062 static void
4063 drm_parse_hdr_metadata_block(struct drm_connector *connector, const u8 *db)
4064 {
4065         u16 len;
4066
4067         len = cea_db_payload_len(db);
4068
4069         connector->hdr_sink_metadata.hdmi_type1.eotf =
4070                                                 eotf_supported(db);
4071         connector->hdr_sink_metadata.hdmi_type1.metadata_type =
4072                                                 hdr_metadata_type(db);
4073
4074         if (len >= 4)
4075                 connector->hdr_sink_metadata.hdmi_type1.max_cll = db[4];
4076         if (len >= 5)
4077                 connector->hdr_sink_metadata.hdmi_type1.max_fall = db[5];
4078         if (len >= 6)
4079                 connector->hdr_sink_metadata.hdmi_type1.min_cll = db[6];
4080 }
4081
4082 static void
4083 drm_parse_hdmi_vsdb_audio(struct drm_connector *connector, const u8 *db)
4084 {
4085         u8 len = cea_db_payload_len(db);
4086
4087         if (len >= 6 && (db[6] & (1 << 7)))
4088                 connector->eld[DRM_ELD_SAD_COUNT_CONN_TYPE] |= DRM_ELD_SUPPORTS_AI;
4089         if (len >= 8) {
4090                 connector->latency_present[0] = db[8] >> 7;
4091                 connector->latency_present[1] = (db[8] >> 6) & 1;
4092         }
4093         if (len >= 9)
4094                 connector->video_latency[0] = db[9];
4095         if (len >= 10)
4096                 connector->audio_latency[0] = db[10];
4097         if (len >= 11)
4098                 connector->video_latency[1] = db[11];
4099         if (len >= 12)
4100                 connector->audio_latency[1] = db[12];
4101
4102         DRM_DEBUG_KMS("HDMI: latency present %d %d, "
4103                       "video latency %d %d, "
4104                       "audio latency %d %d\n",
4105                       connector->latency_present[0],
4106                       connector->latency_present[1],
4107                       connector->video_latency[0],
4108                       connector->video_latency[1],
4109                       connector->audio_latency[0],
4110                       connector->audio_latency[1]);
4111 }
4112
4113 static void
4114 monitor_name(struct detailed_timing *t, void *data)
4115 {
4116         if (t->data.other_data.type == EDID_DETAIL_MONITOR_NAME)
4117                 *(u8 **)data = t->data.other_data.data.str.str;
4118 }
4119
4120 static int get_monitor_name(struct edid *edid, char name[13])
4121 {
4122         char *edid_name = NULL;
4123         int mnl;
4124
4125         if (!edid || !name)
4126                 return 0;
4127
4128         drm_for_each_detailed_block((u8 *)edid, monitor_name, &edid_name);
4129         for (mnl = 0; edid_name && mnl < 13; mnl++) {
4130                 if (edid_name[mnl] == 0x0a)
4131                         break;
4132
4133                 name[mnl] = edid_name[mnl];
4134         }
4135
4136         return mnl;
4137 }
4138
4139 /**
4140  * drm_edid_get_monitor_name - fetch the monitor name from the edid
4141  * @edid: monitor EDID information
4142  * @name: pointer to a character array to hold the name of the monitor
4143  * @bufsize: The size of the name buffer (should be at least 14 chars.)
4144  *
4145  */
4146 void drm_edid_get_monitor_name(struct edid *edid, char *name, int bufsize)
4147 {
4148         int name_length;
4149         char buf[13];
4150         
4151         if (bufsize <= 0)
4152                 return;
4153
4154         name_length = min(get_monitor_name(edid, buf), bufsize - 1);
4155         memcpy(name, buf, name_length);
4156         name[name_length] = '\0';
4157 }
4158 EXPORT_SYMBOL(drm_edid_get_monitor_name);
4159
4160 static void clear_eld(struct drm_connector *connector)
4161 {
4162         memset(connector->eld, 0, sizeof(connector->eld));
4163
4164         connector->latency_present[0] = false;
4165         connector->latency_present[1] = false;
4166         connector->video_latency[0] = 0;
4167         connector->audio_latency[0] = 0;
4168         connector->video_latency[1] = 0;
4169         connector->audio_latency[1] = 0;
4170 }
4171
4172 /*
4173  * drm_edid_to_eld - build ELD from EDID
4174  * @connector: connector corresponding to the HDMI/DP sink
4175  * @edid: EDID to parse
4176  *
4177  * Fill the ELD (EDID-Like Data) buffer for passing to the audio driver. The
4178  * HDCP and Port_ID ELD fields are left for the graphics driver to fill in.
4179  */
4180 static void drm_edid_to_eld(struct drm_connector *connector, struct edid *edid)
4181 {
4182         uint8_t *eld = connector->eld;
4183         u8 *cea;
4184         u8 *db;
4185         int total_sad_count = 0;
4186         int mnl;
4187         int dbl;
4188
4189         clear_eld(connector);
4190
4191         if (!edid)
4192                 return;
4193
4194         cea = drm_find_cea_extension(edid);
4195         if (!cea) {
4196                 DRM_DEBUG_KMS("ELD: no CEA Extension found\n");
4197                 return;
4198         }
4199
4200         mnl = get_monitor_name(edid, &eld[DRM_ELD_MONITOR_NAME_STRING]);
4201         DRM_DEBUG_KMS("ELD monitor %s\n", &eld[DRM_ELD_MONITOR_NAME_STRING]);
4202
4203         eld[DRM_ELD_CEA_EDID_VER_MNL] = cea[1] << DRM_ELD_CEA_EDID_VER_SHIFT;
4204         eld[DRM_ELD_CEA_EDID_VER_MNL] |= mnl;
4205
4206         eld[DRM_ELD_VER] = DRM_ELD_VER_CEA861D;
4207
4208         eld[DRM_ELD_MANUFACTURER_NAME0] = edid->mfg_id[0];
4209         eld[DRM_ELD_MANUFACTURER_NAME1] = edid->mfg_id[1];
4210         eld[DRM_ELD_PRODUCT_CODE0] = edid->prod_code[0];
4211         eld[DRM_ELD_PRODUCT_CODE1] = edid->prod_code[1];
4212
4213         if (cea_revision(cea) >= 3) {
4214                 int i, start, end;
4215
4216                 if (cea_db_offsets(cea, &start, &end)) {
4217                         start = 0;
4218                         end = 0;
4219                 }
4220
4221                 for_each_cea_db(cea, i, start, end) {
4222                         db = &cea[i];
4223                         dbl = cea_db_payload_len(db);
4224
4225                         switch (cea_db_tag(db)) {
4226                                 int sad_count;
4227
4228                         case AUDIO_BLOCK:
4229                                 /* Audio Data Block, contains SADs */
4230                                 sad_count = min(dbl / 3, 15 - total_sad_count);
4231                                 if (sad_count >= 1)
4232                                         memcpy(&eld[DRM_ELD_CEA_SAD(mnl, total_sad_count)],
4233                                                &db[1], sad_count * 3);
4234                                 total_sad_count += sad_count;
4235                                 break;
4236                         case SPEAKER_BLOCK:
4237                                 /* Speaker Allocation Data Block */
4238                                 if (dbl >= 1)
4239                                         eld[DRM_ELD_SPEAKER] = db[1];
4240                                 break;
4241                         case VENDOR_BLOCK:
4242                                 /* HDMI Vendor-Specific Data Block */
4243                                 if (cea_db_is_hdmi_vsdb(db))
4244                                         drm_parse_hdmi_vsdb_audio(connector, db);
4245                                 break;
4246                         default:
4247                                 break;
4248                         }
4249                 }
4250         }
4251         eld[DRM_ELD_SAD_COUNT_CONN_TYPE] |= total_sad_count << DRM_ELD_SAD_COUNT_SHIFT;
4252
4253         if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
4254             connector->connector_type == DRM_MODE_CONNECTOR_eDP)
4255                 eld[DRM_ELD_SAD_COUNT_CONN_TYPE] |= DRM_ELD_CONN_TYPE_DP;
4256         else
4257                 eld[DRM_ELD_SAD_COUNT_CONN_TYPE] |= DRM_ELD_CONN_TYPE_HDMI;
4258
4259         eld[DRM_ELD_BASELINE_ELD_LEN] =
4260                 DIV_ROUND_UP(drm_eld_calc_baseline_block_size(eld), 4);
4261
4262         DRM_DEBUG_KMS("ELD size %d, SAD count %d\n",
4263                       drm_eld_size(eld), total_sad_count);
4264 }
4265
4266 /**
4267  * drm_edid_to_sad - extracts SADs from EDID
4268  * @edid: EDID to parse
4269  * @sads: pointer that will be set to the extracted SADs
4270  *
4271  * Looks for CEA EDID block and extracts SADs (Short Audio Descriptors) from it.
4272  *
4273  * Note: The returned pointer needs to be freed using kfree().
4274  *
4275  * Return: The number of found SADs or negative number on error.
4276  */
4277 int drm_edid_to_sad(struct edid *edid, struct cea_sad **sads)
4278 {
4279         int count = 0;
4280         int i, start, end, dbl;
4281         u8 *cea;
4282
4283         cea = drm_find_cea_extension(edid);
4284         if (!cea) {
4285                 DRM_DEBUG_KMS("SAD: no CEA Extension found\n");
4286                 return 0;
4287         }
4288
4289         if (cea_revision(cea) < 3) {
4290                 DRM_DEBUG_KMS("SAD: wrong CEA revision\n");
4291                 return 0;
4292         }
4293
4294         if (cea_db_offsets(cea, &start, &end)) {
4295                 DRM_DEBUG_KMS("SAD: invalid data block offsets\n");
4296                 return -EPROTO;
4297         }
4298
4299         for_each_cea_db(cea, i, start, end) {
4300                 u8 *db = &cea[i];
4301
4302                 if (cea_db_tag(db) == AUDIO_BLOCK) {
4303                         int j;
4304                         dbl = cea_db_payload_len(db);
4305
4306                         count = dbl / 3; /* SAD is 3B */
4307                         *sads = kcalloc(count, sizeof(**sads), GFP_KERNEL);
4308                         if (!*sads)
4309                                 return -ENOMEM;
4310                         for (j = 0; j < count; j++) {
4311                                 u8 *sad = &db[1 + j * 3];
4312
4313                                 (*sads)[j].format = (sad[0] & 0x78) >> 3;
4314                                 (*sads)[j].channels = sad[0] & 0x7;
4315                                 (*sads)[j].freq = sad[1] & 0x7F;
4316                                 (*sads)[j].byte2 = sad[2];
4317                         }
4318                         break;
4319                 }
4320         }
4321
4322         return count;
4323 }
4324 EXPORT_SYMBOL(drm_edid_to_sad);
4325
4326 /**
4327  * drm_edid_to_speaker_allocation - extracts Speaker Allocation Data Blocks from EDID
4328  * @edid: EDID to parse
4329  * @sadb: pointer to the speaker block
4330  *
4331  * Looks for CEA EDID block and extracts the Speaker Allocation Data Block from it.
4332  *
4333  * Note: The returned pointer needs to be freed using kfree().
4334  *
4335  * Return: The number of found Speaker Allocation Blocks or negative number on
4336  * error.
4337  */
4338 int drm_edid_to_speaker_allocation(struct edid *edid, u8 **sadb)
4339 {
4340         int count = 0;
4341         int i, start, end, dbl;
4342         const u8 *cea;
4343
4344         cea = drm_find_cea_extension(edid);
4345         if (!cea) {
4346                 DRM_DEBUG_KMS("SAD: no CEA Extension found\n");
4347                 return 0;
4348         }
4349
4350         if (cea_revision(cea) < 3) {
4351                 DRM_DEBUG_KMS("SAD: wrong CEA revision\n");
4352                 return 0;
4353         }
4354
4355         if (cea_db_offsets(cea, &start, &end)) {
4356                 DRM_DEBUG_KMS("SAD: invalid data block offsets\n");
4357                 return -EPROTO;
4358         }
4359
4360         for_each_cea_db(cea, i, start, end) {
4361                 const u8 *db = &cea[i];
4362
4363                 if (cea_db_tag(db) == SPEAKER_BLOCK) {
4364                         dbl = cea_db_payload_len(db);
4365
4366                         /* Speaker Allocation Data Block */
4367                         if (dbl == 3) {
4368                                 *sadb = kmemdup(&db[1], dbl, GFP_KERNEL);
4369                                 if (!*sadb)
4370                                         return -ENOMEM;
4371                                 count = dbl;
4372                                 break;
4373                         }
4374                 }
4375         }
4376
4377         return count;
4378 }
4379 EXPORT_SYMBOL(drm_edid_to_speaker_allocation);
4380
4381 /**
4382  * drm_av_sync_delay - compute the HDMI/DP sink audio-video sync delay
4383  * @connector: connector associated with the HDMI/DP sink
4384  * @mode: the display mode
4385  *
4386  * Return: The HDMI/DP sink's audio-video sync delay in milliseconds or 0 if
4387  * the sink doesn't support audio or video.
4388  */
4389 int drm_av_sync_delay(struct drm_connector *connector,
4390                       const struct drm_display_mode *mode)
4391 {
4392         int i = !!(mode->flags & DRM_MODE_FLAG_INTERLACE);
4393         int a, v;
4394
4395         if (!connector->latency_present[0])
4396                 return 0;
4397         if (!connector->latency_present[1])
4398                 i = 0;
4399
4400         a = connector->audio_latency[i];
4401         v = connector->video_latency[i];
4402
4403         /*
4404          * HDMI/DP sink doesn't support audio or video?
4405          */
4406         if (a == 255 || v == 255)
4407                 return 0;
4408
4409         /*
4410          * Convert raw EDID values to millisecond.
4411          * Treat unknown latency as 0ms.
4412          */
4413         if (a)
4414                 a = min(2 * (a - 1), 500);
4415         if (v)
4416                 v = min(2 * (v - 1), 500);
4417
4418         return max(v - a, 0);
4419 }
4420 EXPORT_SYMBOL(drm_av_sync_delay);
4421
4422 /**
4423  * drm_detect_hdmi_monitor - detect whether monitor is HDMI
4424  * @edid: monitor EDID information
4425  *
4426  * Parse the CEA extension according to CEA-861-B.
4427  *
4428  * Return: True if the monitor is HDMI, false if not or unknown.
4429  */
4430 bool drm_detect_hdmi_monitor(struct edid *edid)
4431 {
4432         u8 *edid_ext;
4433         int i;
4434         int start_offset, end_offset;
4435
4436         edid_ext = drm_find_cea_extension(edid);
4437         if (!edid_ext)
4438                 return false;
4439
4440         if (cea_db_offsets(edid_ext, &start_offset, &end_offset))
4441                 return false;
4442
4443         /*
4444          * Because HDMI identifier is in Vendor Specific Block,
4445          * search it from all data blocks of CEA extension.
4446          */
4447         for_each_cea_db(edid_ext, i, start_offset, end_offset) {
4448                 if (cea_db_is_hdmi_vsdb(&edid_ext[i]))
4449                         return true;
4450         }
4451
4452         return false;
4453 }
4454 EXPORT_SYMBOL(drm_detect_hdmi_monitor);
4455
4456 /**
4457  * drm_detect_monitor_audio - check monitor audio capability
4458  * @edid: EDID block to scan
4459  *
4460  * Monitor should have CEA extension block.
4461  * If monitor has 'basic audio', but no CEA audio blocks, it's 'basic
4462  * audio' only. If there is any audio extension block and supported
4463  * audio format, assume at least 'basic audio' support, even if 'basic
4464  * audio' is not defined in EDID.
4465  *
4466  * Return: True if the monitor supports audio, false otherwise.
4467  */
4468 bool drm_detect_monitor_audio(struct edid *edid)
4469 {
4470         u8 *edid_ext;
4471         int i, j;
4472         bool has_audio = false;
4473         int start_offset, end_offset;
4474
4475         edid_ext = drm_find_cea_extension(edid);
4476         if (!edid_ext)
4477                 goto end;
4478
4479         has_audio = ((edid_ext[3] & EDID_BASIC_AUDIO) != 0);
4480
4481         if (has_audio) {
4482                 DRM_DEBUG_KMS("Monitor has basic audio support\n");
4483                 goto end;
4484         }
4485
4486         if (cea_db_offsets(edid_ext, &start_offset, &end_offset))
4487                 goto end;
4488
4489         for_each_cea_db(edid_ext, i, start_offset, end_offset) {
4490                 if (cea_db_tag(&edid_ext[i]) == AUDIO_BLOCK) {
4491                         has_audio = true;
4492                         for (j = 1; j < cea_db_payload_len(&edid_ext[i]) + 1; j += 3)
4493                                 DRM_DEBUG_KMS("CEA audio format %d\n",
4494                                               (edid_ext[i + j] >> 3) & 0xf);
4495                         goto end;
4496                 }
4497         }
4498 end:
4499         return has_audio;
4500 }
4501 EXPORT_SYMBOL(drm_detect_monitor_audio);
4502
4503
4504 /**
4505  * drm_default_rgb_quant_range - default RGB quantization range
4506  * @mode: display mode
4507  *
4508  * Determine the default RGB quantization range for the mode,
4509  * as specified in CEA-861.
4510  *
4511  * Return: The default RGB quantization range for the mode
4512  */
4513 enum hdmi_quantization_range
4514 drm_default_rgb_quant_range(const struct drm_display_mode *mode)
4515 {
4516         /* All CEA modes other than VIC 1 use limited quantization range. */
4517         return drm_match_cea_mode(mode) > 1 ?
4518                 HDMI_QUANTIZATION_RANGE_LIMITED :
4519                 HDMI_QUANTIZATION_RANGE_FULL;
4520 }
4521 EXPORT_SYMBOL(drm_default_rgb_quant_range);
4522
4523 static void drm_parse_vcdb(struct drm_connector *connector, const u8 *db)
4524 {
4525         struct drm_display_info *info = &connector->display_info;
4526
4527         DRM_DEBUG_KMS("CEA VCDB 0x%02x\n", db[2]);
4528
4529         if (db[2] & EDID_CEA_VCDB_QS)
4530                 info->rgb_quant_range_selectable = true;
4531 }
4532
4533 static void drm_parse_ycbcr420_deep_color_info(struct drm_connector *connector,
4534                                                const u8 *db)
4535 {
4536         u8 dc_mask;
4537         struct drm_hdmi_info *hdmi = &connector->display_info.hdmi;
4538
4539         dc_mask = db[7] & DRM_EDID_YCBCR420_DC_MASK;
4540         hdmi->y420_dc_modes = dc_mask;
4541 }
4542
4543 static void drm_parse_hdmi_forum_vsdb(struct drm_connector *connector,
4544                                  const u8 *hf_vsdb)
4545 {
4546         struct drm_display_info *display = &connector->display_info;
4547         struct drm_hdmi_info *hdmi = &display->hdmi;
4548
4549         display->has_hdmi_infoframe = true;
4550
4551         if (hf_vsdb[6] & 0x80) {
4552                 hdmi->scdc.supported = true;
4553                 if (hf_vsdb[6] & 0x40)
4554                         hdmi->scdc.read_request = true;
4555         }
4556
4557         /*
4558          * All HDMI 2.0 monitors must support scrambling at rates > 340 MHz.
4559          * And as per the spec, three factors confirm this:
4560          * * Availability of a HF-VSDB block in EDID (check)
4561          * * Non zero Max_TMDS_Char_Rate filed in HF-VSDB (let's check)
4562          * * SCDC support available (let's check)
4563          * Lets check it out.
4564          */
4565
4566         if (hf_vsdb[5]) {
4567                 /* max clock is 5000 KHz times block value */
4568                 u32 max_tmds_clock = hf_vsdb[5] * 5000;
4569                 struct drm_scdc *scdc = &hdmi->scdc;
4570
4571                 if (max_tmds_clock > 340000) {
4572                         display->max_tmds_clock = max_tmds_clock;
4573                         DRM_DEBUG_KMS("HF-VSDB: max TMDS clock %d kHz\n",
4574                                 display->max_tmds_clock);
4575                 }
4576
4577                 if (scdc->supported) {
4578                         scdc->scrambling.supported = true;
4579
4580                         /* Few sinks support scrambling for cloks < 340M */
4581                         if ((hf_vsdb[6] & 0x8))
4582                                 scdc->scrambling.low_rates = true;
4583                 }
4584         }
4585
4586         drm_parse_ycbcr420_deep_color_info(connector, hf_vsdb);
4587 }
4588
4589 static void drm_parse_hdmi_deep_color_info(struct drm_connector *connector,
4590                                            const u8 *hdmi)
4591 {
4592         struct drm_display_info *info = &connector->display_info;
4593         unsigned int dc_bpc = 0;
4594
4595         /* HDMI supports at least 8 bpc */
4596         info->bpc = 8;
4597
4598         if (cea_db_payload_len(hdmi) < 6)
4599                 return;
4600
4601         if (hdmi[6] & DRM_EDID_HDMI_DC_30) {
4602                 dc_bpc = 10;
4603                 info->edid_hdmi_dc_modes |= DRM_EDID_HDMI_DC_30;
4604                 DRM_DEBUG("%s: HDMI sink does deep color 30.\n",
4605                           connector->name);
4606         }
4607
4608         if (hdmi[6] & DRM_EDID_HDMI_DC_36) {
4609                 dc_bpc = 12;
4610                 info->edid_hdmi_dc_modes |= DRM_EDID_HDMI_DC_36;
4611                 DRM_DEBUG("%s: HDMI sink does deep color 36.\n",
4612                           connector->name);
4613         }
4614
4615         if (hdmi[6] & DRM_EDID_HDMI_DC_48) {
4616                 dc_bpc = 16;
4617                 info->edid_hdmi_dc_modes |= DRM_EDID_HDMI_DC_48;
4618                 DRM_DEBUG("%s: HDMI sink does deep color 48.\n",
4619                           connector->name);
4620         }
4621
4622         if (dc_bpc == 0) {
4623                 DRM_DEBUG("%s: No deep color support on this HDMI sink.\n",
4624                           connector->name);
4625                 return;
4626         }
4627
4628         DRM_DEBUG("%s: Assigning HDMI sink color depth as %d bpc.\n",
4629                   connector->name, dc_bpc);
4630         info->bpc = dc_bpc;
4631
4632         /*
4633          * Deep color support mandates RGB444 support for all video
4634          * modes and forbids YCRCB422 support for all video modes per
4635          * HDMI 1.3 spec.
4636          */
4637         info->color_formats = DRM_COLOR_FORMAT_RGB444;
4638
4639         /* YCRCB444 is optional according to spec. */
4640         if (hdmi[6] & DRM_EDID_HDMI_DC_Y444) {
4641                 info->color_formats |= DRM_COLOR_FORMAT_YCRCB444;
4642                 DRM_DEBUG("%s: HDMI sink does YCRCB444 in deep color.\n",
4643                           connector->name);
4644         }
4645
4646         /*
4647          * Spec says that if any deep color mode is supported at all,
4648          * then deep color 36 bit must be supported.
4649          */
4650         if (!(hdmi[6] & DRM_EDID_HDMI_DC_36)) {
4651                 DRM_DEBUG("%s: HDMI sink should do DC_36, but does not!\n",
4652                           connector->name);
4653         }
4654 }
4655
4656 static void
4657 drm_parse_hdmi_vsdb_video(struct drm_connector *connector, const u8 *db)
4658 {
4659         struct drm_display_info *info = &connector->display_info;
4660         u8 len = cea_db_payload_len(db);
4661
4662         if (len >= 6)
4663                 info->dvi_dual = db[6] & 1;
4664         if (len >= 7)
4665                 info->max_tmds_clock = db[7] * 5000;
4666
4667         DRM_DEBUG_KMS("HDMI: DVI dual %d, "
4668                       "max TMDS clock %d kHz\n",
4669                       info->dvi_dual,
4670                       info->max_tmds_clock);
4671
4672         drm_parse_hdmi_deep_color_info(connector, db);
4673 }
4674
4675 static void drm_parse_cea_ext(struct drm_connector *connector,
4676                               const struct edid *edid)
4677 {
4678         struct drm_display_info *info = &connector->display_info;
4679         const u8 *edid_ext;
4680         int i, start, end;
4681
4682         edid_ext = drm_find_cea_extension(edid);
4683         if (!edid_ext)
4684                 return;
4685
4686         info->cea_rev = edid_ext[1];
4687
4688         /* The existence of a CEA block should imply RGB support */
4689         info->color_formats = DRM_COLOR_FORMAT_RGB444;
4690         if (edid_ext[3] & EDID_CEA_YCRCB444)
4691                 info->color_formats |= DRM_COLOR_FORMAT_YCRCB444;
4692         if (edid_ext[3] & EDID_CEA_YCRCB422)
4693                 info->color_formats |= DRM_COLOR_FORMAT_YCRCB422;
4694
4695         if (cea_db_offsets(edid_ext, &start, &end))
4696                 return;
4697
4698         for_each_cea_db(edid_ext, i, start, end) {
4699                 const u8 *db = &edid_ext[i];
4700
4701                 if (cea_db_is_hdmi_vsdb(db))
4702                         drm_parse_hdmi_vsdb_video(connector, db);
4703                 if (cea_db_is_hdmi_forum_vsdb(db))
4704                         drm_parse_hdmi_forum_vsdb(connector, db);
4705                 if (cea_db_is_y420cmdb(db))
4706                         drm_parse_y420cmdb_bitmap(connector, db);
4707                 if (cea_db_is_vcdb(db))
4708                         drm_parse_vcdb(connector, db);
4709                 if (cea_db_is_hdmi_hdr_metadata_block(db))
4710                         drm_parse_hdr_metadata_block(connector, db);
4711         }
4712 }
4713
4714 /* A connector has no EDID information, so we've got no EDID to compute quirks from. Reset
4715  * all of the values which would have been set from EDID
4716  */
4717 void
4718 drm_reset_display_info(struct drm_connector *connector)
4719 {
4720         struct drm_display_info *info = &connector->display_info;
4721
4722         info->width_mm = 0;
4723         info->height_mm = 0;
4724
4725         info->bpc = 0;
4726         info->color_formats = 0;
4727         info->cea_rev = 0;
4728         info->max_tmds_clock = 0;
4729         info->dvi_dual = false;
4730         info->has_hdmi_infoframe = false;
4731         info->rgb_quant_range_selectable = false;
4732         memset(&info->hdmi, 0, sizeof(info->hdmi));
4733
4734         info->non_desktop = 0;
4735 }
4736
4737 u32 drm_add_display_info(struct drm_connector *connector, const struct edid *edid)
4738 {
4739         struct drm_display_info *info = &connector->display_info;
4740
4741         u32 quirks = edid_get_quirks(edid);
4742
4743         drm_reset_display_info(connector);
4744
4745         info->width_mm = edid->width_cm * 10;
4746         info->height_mm = edid->height_cm * 10;
4747
4748         info->non_desktop = !!(quirks & EDID_QUIRK_NON_DESKTOP);
4749
4750         DRM_DEBUG_KMS("non_desktop set to %d\n", info->non_desktop);
4751
4752         if (edid->revision < 3)
4753                 return quirks;
4754
4755         if (!(edid->input & DRM_EDID_INPUT_DIGITAL))
4756                 return quirks;
4757
4758         drm_parse_cea_ext(connector, edid);
4759
4760         /*
4761          * Digital sink with "DFP 1.x compliant TMDS" according to EDID 1.3?
4762          *
4763          * For such displays, the DFP spec 1.0, section 3.10 "EDID support"
4764          * tells us to assume 8 bpc color depth if the EDID doesn't have
4765          * extensions which tell otherwise.
4766          */
4767         if (info->bpc == 0 && edid->revision == 3 &&
4768             edid->input & DRM_EDID_DIGITAL_DFP_1_X) {
4769                 info->bpc = 8;
4770                 DRM_DEBUG("%s: Assigning DFP sink color depth as %d bpc.\n",
4771                           connector->name, info->bpc);
4772         }
4773
4774         /* Only defined for 1.4 with digital displays */
4775         if (edid->revision < 4)
4776                 return quirks;
4777
4778         switch (edid->input & DRM_EDID_DIGITAL_DEPTH_MASK) {
4779         case DRM_EDID_DIGITAL_DEPTH_6:
4780                 info->bpc = 6;
4781                 break;
4782         case DRM_EDID_DIGITAL_DEPTH_8:
4783                 info->bpc = 8;
4784                 break;
4785         case DRM_EDID_DIGITAL_DEPTH_10:
4786                 info->bpc = 10;
4787                 break;
4788         case DRM_EDID_DIGITAL_DEPTH_12:
4789                 info->bpc = 12;
4790                 break;
4791         case DRM_EDID_DIGITAL_DEPTH_14:
4792                 info->bpc = 14;
4793                 break;
4794         case DRM_EDID_DIGITAL_DEPTH_16:
4795                 info->bpc = 16;
4796                 break;
4797         case DRM_EDID_DIGITAL_DEPTH_UNDEF:
4798         default:
4799                 info->bpc = 0;
4800                 break;
4801         }
4802
4803         DRM_DEBUG("%s: Assigning EDID-1.4 digital sink color depth as %d bpc.\n",
4804                           connector->name, info->bpc);
4805
4806         info->color_formats |= DRM_COLOR_FORMAT_RGB444;
4807         if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB444)
4808                 info->color_formats |= DRM_COLOR_FORMAT_YCRCB444;
4809         if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB422)
4810                 info->color_formats |= DRM_COLOR_FORMAT_YCRCB422;
4811         return quirks;
4812 }
4813
4814 static int validate_displayid(u8 *displayid, int length, int idx)
4815 {
4816         int i;
4817         u8 csum = 0;
4818         struct displayid_hdr *base;
4819
4820         base = (struct displayid_hdr *)&displayid[idx];
4821
4822         DRM_DEBUG_KMS("base revision 0x%x, length %d, %d %d\n",
4823                       base->rev, base->bytes, base->prod_id, base->ext_count);
4824
4825         if (base->bytes + 5 > length - idx)
4826                 return -EINVAL;
4827         for (i = idx; i <= base->bytes + 5; i++) {
4828                 csum += displayid[i];
4829         }
4830         if (csum) {
4831                 DRM_NOTE("DisplayID checksum invalid, remainder is %d\n", csum);
4832                 return -EINVAL;
4833         }
4834         return 0;
4835 }
4836
4837 static struct drm_display_mode *drm_mode_displayid_detailed(struct drm_device *dev,
4838                                                             struct displayid_detailed_timings_1 *timings)
4839 {
4840         struct drm_display_mode *mode;
4841         unsigned pixel_clock = (timings->pixel_clock[0] |
4842                                 (timings->pixel_clock[1] << 8) |
4843                                 (timings->pixel_clock[2] << 16));
4844         unsigned hactive = (timings->hactive[0] | timings->hactive[1] << 8) + 1;
4845         unsigned hblank = (timings->hblank[0] | timings->hblank[1] << 8) + 1;
4846         unsigned hsync = (timings->hsync[0] | (timings->hsync[1] & 0x7f) << 8) + 1;
4847         unsigned hsync_width = (timings->hsw[0] | timings->hsw[1] << 8) + 1;
4848         unsigned vactive = (timings->vactive[0] | timings->vactive[1] << 8) + 1;
4849         unsigned vblank = (timings->vblank[0] | timings->vblank[1] << 8) + 1;
4850         unsigned vsync = (timings->vsync[0] | (timings->vsync[1] & 0x7f) << 8) + 1;
4851         unsigned vsync_width = (timings->vsw[0] | timings->vsw[1] << 8) + 1;
4852         bool hsync_positive = (timings->hsync[1] >> 7) & 0x1;
4853         bool vsync_positive = (timings->vsync[1] >> 7) & 0x1;
4854         mode = drm_mode_create(dev);
4855         if (!mode)
4856                 return NULL;
4857
4858         mode->clock = pixel_clock * 10;
4859         mode->hdisplay = hactive;
4860         mode->hsync_start = mode->hdisplay + hsync;
4861         mode->hsync_end = mode->hsync_start + hsync_width;
4862         mode->htotal = mode->hdisplay + hblank;
4863
4864         mode->vdisplay = vactive;
4865         mode->vsync_start = mode->vdisplay + vsync;
4866         mode->vsync_end = mode->vsync_start + vsync_width;
4867         mode->vtotal = mode->vdisplay + vblank;
4868
4869         mode->flags = 0;
4870         mode->flags |= hsync_positive ? DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
4871         mode->flags |= vsync_positive ? DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
4872         mode->type = DRM_MODE_TYPE_DRIVER;
4873
4874         if (timings->flags & 0x80)
4875                 mode->type |= DRM_MODE_TYPE_PREFERRED;
4876         mode->vrefresh = drm_mode_vrefresh(mode);
4877         drm_mode_set_name(mode);
4878
4879         return mode;
4880 }
4881
4882 static int add_displayid_detailed_1_modes(struct drm_connector *connector,
4883                                           struct displayid_block *block)
4884 {
4885         struct displayid_detailed_timing_block *det = (struct displayid_detailed_timing_block *)block;
4886         int i;
4887         int num_timings;
4888         struct drm_display_mode *newmode;
4889         int num_modes = 0;
4890         /* blocks must be multiple of 20 bytes length */
4891         if (block->num_bytes % 20)
4892                 return 0;
4893
4894         num_timings = block->num_bytes / 20;
4895         for (i = 0; i < num_timings; i++) {
4896                 struct displayid_detailed_timings_1 *timings = &det->timings[i];
4897
4898                 newmode = drm_mode_displayid_detailed(connector->dev, timings);
4899                 if (!newmode)
4900                         continue;
4901
4902                 drm_mode_probed_add(connector, newmode);
4903                 num_modes++;
4904         }
4905         return num_modes;
4906 }
4907
4908 static int add_displayid_detailed_modes(struct drm_connector *connector,
4909                                         struct edid *edid)
4910 {
4911         u8 *displayid;
4912         int ret;
4913         int idx = 1;
4914         int length = EDID_LENGTH;
4915         struct displayid_block *block;
4916         int num_modes = 0;
4917
4918         displayid = drm_find_displayid_extension(edid);
4919         if (!displayid)
4920                 return 0;
4921
4922         ret = validate_displayid(displayid, length, idx);
4923         if (ret)
4924                 return 0;
4925
4926         idx += sizeof(struct displayid_hdr);
4927         for_each_displayid_db(displayid, block, idx, length) {
4928                 switch (block->tag) {
4929                 case DATA_BLOCK_TYPE_1_DETAILED_TIMING:
4930                         num_modes += add_displayid_detailed_1_modes(connector, block);
4931                         break;
4932                 }
4933         }
4934         return num_modes;
4935 }
4936
4937 /**
4938  * drm_add_edid_modes - add modes from EDID data, if available
4939  * @connector: connector we're probing
4940  * @edid: EDID data
4941  *
4942  * Add the specified modes to the connector's mode list. Also fills out the
4943  * &drm_display_info structure and ELD in @connector with any information which
4944  * can be derived from the edid.
4945  *
4946  * Return: The number of modes added or 0 if we couldn't find any.
4947  */
4948 int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)
4949 {
4950         int num_modes = 0;
4951         u32 quirks;
4952
4953         if (edid == NULL) {
4954                 clear_eld(connector);
4955                 return 0;
4956         }
4957         if (!drm_edid_is_valid(edid)) {
4958                 clear_eld(connector);
4959                 dev_warn(connector->dev->dev, "%s: EDID invalid.\n",
4960                          connector->name);
4961                 return 0;
4962         }
4963
4964         drm_edid_to_eld(connector, edid);
4965
4966         /*
4967          * CEA-861-F adds ycbcr capability map block, for HDMI 2.0 sinks.
4968          * To avoid multiple parsing of same block, lets parse that map
4969          * from sink info, before parsing CEA modes.
4970          */
4971         quirks = drm_add_display_info(connector, edid);
4972
4973         /*
4974          * EDID spec says modes should be preferred in this order:
4975          * - preferred detailed mode
4976          * - other detailed modes from base block
4977          * - detailed modes from extension blocks
4978          * - CVT 3-byte code modes
4979          * - standard timing codes
4980          * - established timing codes
4981          * - modes inferred from GTF or CVT range information
4982          *
4983          * We get this pretty much right.
4984          *
4985          * XXX order for additional mode types in extension blocks?
4986          */
4987         num_modes += add_detailed_modes(connector, edid, quirks);
4988         num_modes += add_cvt_modes(connector, edid);
4989         num_modes += add_standard_modes(connector, edid);
4990         num_modes += add_established_modes(connector, edid);
4991         num_modes += add_cea_modes(connector, edid);
4992         num_modes += add_alternate_cea_modes(connector, edid);
4993         num_modes += add_displayid_detailed_modes(connector, edid);
4994         if (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF)
4995                 num_modes += add_inferred_modes(connector, edid);
4996
4997         if (quirks & (EDID_QUIRK_PREFER_LARGE_60 | EDID_QUIRK_PREFER_LARGE_75))
4998                 edid_fixup_preferred(connector, quirks);
4999
5000         if (quirks & EDID_QUIRK_FORCE_6BPC)
5001                 connector->display_info.bpc = 6;
5002
5003         if (quirks & EDID_QUIRK_FORCE_8BPC)
5004                 connector->display_info.bpc = 8;
5005
5006         if (quirks & EDID_QUIRK_FORCE_10BPC)
5007                 connector->display_info.bpc = 10;
5008
5009         if (quirks & EDID_QUIRK_FORCE_12BPC)
5010                 connector->display_info.bpc = 12;
5011
5012         return num_modes;
5013 }
5014 EXPORT_SYMBOL(drm_add_edid_modes);
5015
5016 /**
5017  * drm_add_modes_noedid - add modes for the connectors without EDID
5018  * @connector: connector we're probing
5019  * @hdisplay: the horizontal display limit
5020  * @vdisplay: the vertical display limit
5021  *
5022  * Add the specified modes to the connector's mode list. Only when the
5023  * hdisplay/vdisplay is not beyond the given limit, it will be added.
5024  *
5025  * Return: The number of modes added or 0 if we couldn't find any.
5026  */
5027 int drm_add_modes_noedid(struct drm_connector *connector,
5028                         int hdisplay, int vdisplay)
5029 {
5030         int i, count, num_modes = 0;
5031         struct drm_display_mode *mode;
5032         struct drm_device *dev = connector->dev;
5033
5034         count = ARRAY_SIZE(drm_dmt_modes);
5035         if (hdisplay < 0)
5036                 hdisplay = 0;
5037         if (vdisplay < 0)
5038                 vdisplay = 0;
5039
5040         for (i = 0; i < count; i++) {
5041                 const struct drm_display_mode *ptr = &drm_dmt_modes[i];
5042                 if (hdisplay && vdisplay) {
5043                         /*
5044                          * Only when two are valid, they will be used to check
5045                          * whether the mode should be added to the mode list of
5046                          * the connector.
5047                          */
5048                         if (ptr->hdisplay > hdisplay ||
5049                                         ptr->vdisplay > vdisplay)
5050                                 continue;
5051                 }
5052                 if (drm_mode_vrefresh(ptr) > 61)
5053                         continue;
5054                 mode = drm_mode_duplicate(dev, ptr);
5055                 if (mode) {
5056                         drm_mode_probed_add(connector, mode);
5057                         num_modes++;
5058                 }
5059         }
5060         return num_modes;
5061 }
5062 EXPORT_SYMBOL(drm_add_modes_noedid);
5063
5064 /**
5065  * drm_set_preferred_mode - Sets the preferred mode of a connector
5066  * @connector: connector whose mode list should be processed
5067  * @hpref: horizontal resolution of preferred mode
5068  * @vpref: vertical resolution of preferred mode
5069  *
5070  * Marks a mode as preferred if it matches the resolution specified by @hpref
5071  * and @vpref.
5072  */
5073 void drm_set_preferred_mode(struct drm_connector *connector,
5074                            int hpref, int vpref)
5075 {
5076         struct drm_display_mode *mode;
5077
5078         list_for_each_entry(mode, &connector->probed_modes, head) {
5079                 if (mode->hdisplay == hpref &&
5080                     mode->vdisplay == vpref)
5081                         mode->type |= DRM_MODE_TYPE_PREFERRED;
5082         }
5083 }
5084 EXPORT_SYMBOL(drm_set_preferred_mode);
5085
5086 static bool is_hdmi2_sink(struct drm_connector *connector)
5087 {
5088         /*
5089          * FIXME: sil-sii8620 doesn't have a connector around when
5090          * we need one, so we have to be prepared for a NULL connector.
5091          */
5092         if (!connector)
5093                 return true;
5094
5095         return connector->display_info.hdmi.scdc.supported ||
5096                 connector->display_info.color_formats & DRM_COLOR_FORMAT_YCRCB420;
5097 }
5098
5099 static inline bool is_eotf_supported(u8 output_eotf, u8 sink_eotf)
5100 {
5101         return sink_eotf & BIT(output_eotf);
5102 }
5103
5104 /**
5105  * drm_hdmi_infoframe_set_hdr_metadata() - fill an HDMI DRM infoframe with
5106  *                                         HDR metadata from userspace
5107  * @frame: HDMI DRM infoframe
5108  * @conn_state: Connector state containing HDR metadata
5109  *
5110  * Return: 0 on success or a negative error code on failure.
5111  */
5112 int
5113 drm_hdmi_infoframe_set_hdr_metadata(struct hdmi_drm_infoframe *frame,
5114                                     const struct drm_connector_state *conn_state)
5115 {
5116         struct drm_connector *connector;
5117         struct hdr_output_metadata *hdr_metadata;
5118         int err;
5119
5120         if (!frame || !conn_state)
5121                 return -EINVAL;
5122
5123         connector = conn_state->connector;
5124
5125         if (!conn_state->hdr_output_metadata)
5126                 return -EINVAL;
5127
5128         hdr_metadata = conn_state->hdr_output_metadata->data;
5129
5130         if (!hdr_metadata || !connector)
5131                 return -EINVAL;
5132
5133         /* Sink EOTF is Bit map while infoframe is absolute values */
5134         if (!is_eotf_supported(hdr_metadata->hdmi_metadata_type1.eotf,
5135             connector->hdr_sink_metadata.hdmi_type1.eotf)) {
5136                 DRM_DEBUG_KMS("EOTF Not Supported\n");
5137                 return -EINVAL;
5138         }
5139
5140         err = hdmi_drm_infoframe_init(frame);
5141         if (err < 0)
5142                 return err;
5143
5144         frame->eotf = hdr_metadata->hdmi_metadata_type1.eotf;
5145         frame->metadata_type = hdr_metadata->hdmi_metadata_type1.metadata_type;
5146
5147         BUILD_BUG_ON(sizeof(frame->display_primaries) !=
5148                      sizeof(hdr_metadata->hdmi_metadata_type1.display_primaries));
5149         BUILD_BUG_ON(sizeof(frame->white_point) !=
5150                      sizeof(hdr_metadata->hdmi_metadata_type1.white_point));
5151
5152         memcpy(&frame->display_primaries,
5153                &hdr_metadata->hdmi_metadata_type1.display_primaries,
5154                sizeof(frame->display_primaries));
5155
5156         memcpy(&frame->white_point,
5157                &hdr_metadata->hdmi_metadata_type1.white_point,
5158                sizeof(frame->white_point));
5159
5160         frame->max_display_mastering_luminance =
5161                 hdr_metadata->hdmi_metadata_type1.max_display_mastering_luminance;
5162         frame->min_display_mastering_luminance =
5163                 hdr_metadata->hdmi_metadata_type1.min_display_mastering_luminance;
5164         frame->max_fall = hdr_metadata->hdmi_metadata_type1.max_fall;
5165         frame->max_cll = hdr_metadata->hdmi_metadata_type1.max_cll;
5166
5167         return 0;
5168 }
5169 EXPORT_SYMBOL(drm_hdmi_infoframe_set_hdr_metadata);
5170
5171 static u8 drm_mode_hdmi_vic(struct drm_connector *connector,
5172                             const struct drm_display_mode *mode)
5173 {
5174         bool has_hdmi_infoframe = connector ?
5175                 connector->display_info.has_hdmi_infoframe : false;
5176
5177         if (!has_hdmi_infoframe)
5178                 return 0;
5179
5180         /* No HDMI VIC when signalling 3D video format */
5181         if (mode->flags & DRM_MODE_FLAG_3D_MASK)
5182                 return 0;
5183
5184         return drm_match_hdmi_mode(mode);
5185 }
5186
5187 static u8 drm_mode_cea_vic(struct drm_connector *connector,
5188                            const struct drm_display_mode *mode)
5189 {
5190         u8 vic;
5191
5192         /*
5193          * HDMI spec says if a mode is found in HDMI 1.4b 4K modes
5194          * we should send its VIC in vendor infoframes, else send the
5195          * VIC in AVI infoframes. Lets check if this mode is present in
5196          * HDMI 1.4b 4K modes
5197          */
5198         if (drm_mode_hdmi_vic(connector, mode))
5199                 return 0;
5200
5201         vic = drm_match_cea_mode(mode);
5202
5203         /*
5204          * HDMI 1.4 VIC range: 1 <= VIC <= 64 (CEA-861-D) but
5205          * HDMI 2.0 VIC range: 1 <= VIC <= 107 (CEA-861-F). So we
5206          * have to make sure we dont break HDMI 1.4 sinks.
5207          */
5208         if (!is_hdmi2_sink(connector) && vic > 64)
5209                 return 0;
5210
5211         return vic;
5212 }
5213
5214 /**
5215  * drm_hdmi_avi_infoframe_from_display_mode() - fill an HDMI AVI infoframe with
5216  *                                              data from a DRM display mode
5217  * @frame: HDMI AVI infoframe
5218  * @connector: the connector
5219  * @mode: DRM display mode
5220  *
5221  * Return: 0 on success or a negative error code on failure.
5222  */
5223 int
5224 drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,
5225                                          struct drm_connector *connector,
5226                                          const struct drm_display_mode *mode)
5227 {
5228         enum hdmi_picture_aspect picture_aspect;
5229         u8 vic, hdmi_vic;
5230         int err;
5231
5232         if (!frame || !mode)
5233                 return -EINVAL;
5234
5235         err = hdmi_avi_infoframe_init(frame);
5236         if (err < 0)
5237                 return err;
5238
5239         if (mode->flags & DRM_MODE_FLAG_DBLCLK)
5240                 frame->pixel_repeat = 1;
5241
5242         vic = drm_mode_cea_vic(connector, mode);
5243         hdmi_vic = drm_mode_hdmi_vic(connector, mode);
5244
5245         frame->picture_aspect = HDMI_PICTURE_ASPECT_NONE;
5246
5247         /*
5248          * As some drivers don't support atomic, we can't use connector state.
5249          * So just initialize the frame with default values, just the same way
5250          * as it's done with other properties here.
5251          */
5252         frame->content_type = HDMI_CONTENT_TYPE_GRAPHICS;
5253         frame->itc = 0;
5254
5255         /*
5256          * Populate picture aspect ratio from either
5257          * user input (if specified) or from the CEA/HDMI mode lists.
5258          */
5259         picture_aspect = mode->picture_aspect_ratio;
5260         if (picture_aspect == HDMI_PICTURE_ASPECT_NONE) {
5261                 if (vic)
5262                         picture_aspect = drm_get_cea_aspect_ratio(vic);
5263                 else if (hdmi_vic)
5264                         picture_aspect = drm_get_hdmi_aspect_ratio(hdmi_vic);
5265         }
5266
5267         /*
5268          * The infoframe can't convey anything but none, 4:3
5269          * and 16:9, so if the user has asked for anything else
5270          * we can only satisfy it by specifying the right VIC.
5271          */
5272         if (picture_aspect > HDMI_PICTURE_ASPECT_16_9) {
5273                 if (vic) {
5274                         if (picture_aspect != drm_get_cea_aspect_ratio(vic))
5275                                 return -EINVAL;
5276                 } else if (hdmi_vic) {
5277                         if (picture_aspect != drm_get_hdmi_aspect_ratio(hdmi_vic))
5278                                 return -EINVAL;
5279                 } else {
5280                         return -EINVAL;
5281                 }
5282
5283                 picture_aspect = HDMI_PICTURE_ASPECT_NONE;
5284         }
5285
5286         frame->video_code = vic;
5287         frame->picture_aspect = picture_aspect;
5288         frame->active_aspect = HDMI_ACTIVE_ASPECT_PICTURE;
5289         frame->scan_mode = HDMI_SCAN_MODE_UNDERSCAN;
5290
5291         return 0;
5292 }
5293 EXPORT_SYMBOL(drm_hdmi_avi_infoframe_from_display_mode);
5294
5295 /* HDMI Colorspace Spec Definitions */
5296 #define FULL_COLORIMETRY_MASK           0x1FF
5297 #define NORMAL_COLORIMETRY_MASK         0x3
5298 #define EXTENDED_COLORIMETRY_MASK       0x7
5299 #define EXTENDED_ACE_COLORIMETRY_MASK   0xF
5300
5301 #define C(x) ((x) << 0)
5302 #define EC(x) ((x) << 2)
5303 #define ACE(x) ((x) << 5)
5304
5305 #define HDMI_COLORIMETRY_NO_DATA                0x0
5306 #define HDMI_COLORIMETRY_SMPTE_170M_YCC         (C(1) | EC(0) | ACE(0))
5307 #define HDMI_COLORIMETRY_BT709_YCC              (C(2) | EC(0) | ACE(0))
5308 #define HDMI_COLORIMETRY_XVYCC_601              (C(3) | EC(0) | ACE(0))
5309 #define HDMI_COLORIMETRY_XVYCC_709              (C(3) | EC(1) | ACE(0))
5310 #define HDMI_COLORIMETRY_SYCC_601               (C(3) | EC(2) | ACE(0))
5311 #define HDMI_COLORIMETRY_OPYCC_601              (C(3) | EC(3) | ACE(0))
5312 #define HDMI_COLORIMETRY_OPRGB                  (C(3) | EC(4) | ACE(0))
5313 #define HDMI_COLORIMETRY_BT2020_CYCC            (C(3) | EC(5) | ACE(0))
5314 #define HDMI_COLORIMETRY_BT2020_RGB             (C(3) | EC(6) | ACE(0))
5315 #define HDMI_COLORIMETRY_BT2020_YCC             (C(3) | EC(6) | ACE(0))
5316 #define HDMI_COLORIMETRY_DCI_P3_RGB_D65         (C(3) | EC(7) | ACE(0))
5317 #define HDMI_COLORIMETRY_DCI_P3_RGB_THEATER     (C(3) | EC(7) | ACE(1))
5318
5319 static const u32 hdmi_colorimetry_val[] = {
5320         [DRM_MODE_COLORIMETRY_NO_DATA] = HDMI_COLORIMETRY_NO_DATA,
5321         [DRM_MODE_COLORIMETRY_SMPTE_170M_YCC] = HDMI_COLORIMETRY_SMPTE_170M_YCC,
5322         [DRM_MODE_COLORIMETRY_BT709_YCC] = HDMI_COLORIMETRY_BT709_YCC,
5323         [DRM_MODE_COLORIMETRY_XVYCC_601] = HDMI_COLORIMETRY_XVYCC_601,
5324         [DRM_MODE_COLORIMETRY_XVYCC_709] = HDMI_COLORIMETRY_XVYCC_709,
5325         [DRM_MODE_COLORIMETRY_SYCC_601] = HDMI_COLORIMETRY_SYCC_601,
5326         [DRM_MODE_COLORIMETRY_OPYCC_601] = HDMI_COLORIMETRY_OPYCC_601,
5327         [DRM_MODE_COLORIMETRY_OPRGB] = HDMI_COLORIMETRY_OPRGB,
5328         [DRM_MODE_COLORIMETRY_BT2020_CYCC] = HDMI_COLORIMETRY_BT2020_CYCC,
5329         [DRM_MODE_COLORIMETRY_BT2020_RGB] = HDMI_COLORIMETRY_BT2020_RGB,
5330         [DRM_MODE_COLORIMETRY_BT2020_YCC] = HDMI_COLORIMETRY_BT2020_YCC,
5331 };
5332
5333 #undef C
5334 #undef EC
5335 #undef ACE
5336
5337 /**
5338  * drm_hdmi_avi_infoframe_colorspace() - fill the HDMI AVI infoframe
5339  *                                       colorspace information
5340  * @frame: HDMI AVI infoframe
5341  * @conn_state: connector state
5342  */
5343 void
5344 drm_hdmi_avi_infoframe_colorspace(struct hdmi_avi_infoframe *frame,
5345                                   const struct drm_connector_state *conn_state)
5346 {
5347         u32 colorimetry_val;
5348         u32 colorimetry_index = conn_state->colorspace & FULL_COLORIMETRY_MASK;
5349
5350         if (colorimetry_index >= ARRAY_SIZE(hdmi_colorimetry_val))
5351                 colorimetry_val = HDMI_COLORIMETRY_NO_DATA;
5352         else
5353                 colorimetry_val = hdmi_colorimetry_val[colorimetry_index];
5354
5355         frame->colorimetry = colorimetry_val & NORMAL_COLORIMETRY_MASK;
5356         /*
5357          * ToDo: Extend it for ACE formats as well. Modify the infoframe
5358          * structure and extend it in drivers/video/hdmi
5359          */
5360         frame->extended_colorimetry = (colorimetry_val >> 2) &
5361                                         EXTENDED_COLORIMETRY_MASK;
5362 }
5363 EXPORT_SYMBOL(drm_hdmi_avi_infoframe_colorspace);
5364
5365 /**
5366  * drm_hdmi_avi_infoframe_quant_range() - fill the HDMI AVI infoframe
5367  *                                        quantization range information
5368  * @frame: HDMI AVI infoframe
5369  * @connector: the connector
5370  * @mode: DRM display mode
5371  * @rgb_quant_range: RGB quantization range (Q)
5372  */
5373 void
5374 drm_hdmi_avi_infoframe_quant_range(struct hdmi_avi_infoframe *frame,
5375                                    struct drm_connector *connector,
5376                                    const struct drm_display_mode *mode,
5377                                    enum hdmi_quantization_range rgb_quant_range)
5378 {
5379         const struct drm_display_info *info = &connector->display_info;
5380
5381         /*
5382          * CEA-861:
5383          * "A Source shall not send a non-zero Q value that does not correspond
5384          *  to the default RGB Quantization Range for the transmitted Picture
5385          *  unless the Sink indicates support for the Q bit in a Video
5386          *  Capabilities Data Block."
5387          *
5388          * HDMI 2.0 recommends sending non-zero Q when it does match the
5389          * default RGB quantization range for the mode, even when QS=0.
5390          */
5391         if (info->rgb_quant_range_selectable ||
5392             rgb_quant_range == drm_default_rgb_quant_range(mode))
5393                 frame->quantization_range = rgb_quant_range;
5394         else
5395                 frame->quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT;
5396
5397         /*
5398          * CEA-861-F:
5399          * "When transmitting any RGB colorimetry, the Source should set the
5400          *  YQ-field to match the RGB Quantization Range being transmitted
5401          *  (e.g., when Limited Range RGB, set YQ=0 or when Full Range RGB,
5402          *  set YQ=1) and the Sink shall ignore the YQ-field."
5403          *
5404          * Unfortunate certain sinks (eg. VIZ Model 67/E261VA) get confused
5405          * by non-zero YQ when receiving RGB. There doesn't seem to be any
5406          * good way to tell which version of CEA-861 the sink supports, so
5407          * we limit non-zero YQ to HDMI 2.0 sinks only as HDMI 2.0 is based
5408          * on on CEA-861-F.
5409          */
5410         if (!is_hdmi2_sink(connector) ||
5411             rgb_quant_range == HDMI_QUANTIZATION_RANGE_LIMITED)
5412                 frame->ycc_quantization_range =
5413                         HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
5414         else
5415                 frame->ycc_quantization_range =
5416                         HDMI_YCC_QUANTIZATION_RANGE_FULL;
5417 }
5418 EXPORT_SYMBOL(drm_hdmi_avi_infoframe_quant_range);
5419
5420 /**
5421  * drm_hdmi_avi_infoframe_bars() - fill the HDMI AVI infoframe
5422  *                                 bar information
5423  * @frame: HDMI AVI infoframe
5424  * @conn_state: connector state
5425  */
5426 void
5427 drm_hdmi_avi_infoframe_bars(struct hdmi_avi_infoframe *frame,
5428                             const struct drm_connector_state *conn_state)
5429 {
5430         frame->right_bar = conn_state->tv.margins.right;
5431         frame->left_bar = conn_state->tv.margins.left;
5432         frame->top_bar = conn_state->tv.margins.top;
5433         frame->bottom_bar = conn_state->tv.margins.bottom;
5434 }
5435 EXPORT_SYMBOL(drm_hdmi_avi_infoframe_bars);
5436
5437 static enum hdmi_3d_structure
5438 s3d_structure_from_display_mode(const struct drm_display_mode *mode)
5439 {
5440         u32 layout = mode->flags & DRM_MODE_FLAG_3D_MASK;
5441
5442         switch (layout) {
5443         case DRM_MODE_FLAG_3D_FRAME_PACKING:
5444                 return HDMI_3D_STRUCTURE_FRAME_PACKING;
5445         case DRM_MODE_FLAG_3D_FIELD_ALTERNATIVE:
5446                 return HDMI_3D_STRUCTURE_FIELD_ALTERNATIVE;
5447         case DRM_MODE_FLAG_3D_LINE_ALTERNATIVE:
5448                 return HDMI_3D_STRUCTURE_LINE_ALTERNATIVE;
5449         case DRM_MODE_FLAG_3D_SIDE_BY_SIDE_FULL:
5450                 return HDMI_3D_STRUCTURE_SIDE_BY_SIDE_FULL;
5451         case DRM_MODE_FLAG_3D_L_DEPTH:
5452                 return HDMI_3D_STRUCTURE_L_DEPTH;
5453         case DRM_MODE_FLAG_3D_L_DEPTH_GFX_GFX_DEPTH:
5454                 return HDMI_3D_STRUCTURE_L_DEPTH_GFX_GFX_DEPTH;
5455         case DRM_MODE_FLAG_3D_TOP_AND_BOTTOM:
5456                 return HDMI_3D_STRUCTURE_TOP_AND_BOTTOM;
5457         case DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF:
5458                 return HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF;
5459         default:
5460                 return HDMI_3D_STRUCTURE_INVALID;
5461         }
5462 }
5463
5464 /**
5465  * drm_hdmi_vendor_infoframe_from_display_mode() - fill an HDMI infoframe with
5466  * data from a DRM display mode
5467  * @frame: HDMI vendor infoframe
5468  * @connector: the connector
5469  * @mode: DRM display mode
5470  *
5471  * Note that there's is a need to send HDMI vendor infoframes only when using a
5472  * 4k or stereoscopic 3D mode. So when giving any other mode as input this
5473  * function will return -EINVAL, error that can be safely ignored.
5474  *
5475  * Return: 0 on success or a negative error code on failure.
5476  */
5477 int
5478 drm_hdmi_vendor_infoframe_from_display_mode(struct hdmi_vendor_infoframe *frame,
5479                                             struct drm_connector *connector,
5480                                             const struct drm_display_mode *mode)
5481 {
5482         /*
5483          * FIXME: sil-sii8620 doesn't have a connector around when
5484          * we need one, so we have to be prepared for a NULL connector.
5485          */
5486         bool has_hdmi_infoframe = connector ?
5487                 connector->display_info.has_hdmi_infoframe : false;
5488         int err;
5489
5490         if (!frame || !mode)
5491                 return -EINVAL;
5492
5493         if (!has_hdmi_infoframe)
5494                 return -EINVAL;
5495
5496         err = hdmi_vendor_infoframe_init(frame);
5497         if (err < 0)
5498                 return err;
5499
5500         /*
5501          * Even if it's not absolutely necessary to send the infoframe
5502          * (ie.vic==0 and s3d_struct==0) we will still send it if we
5503          * know that the sink can handle it. This is based on a
5504          * suggestion in HDMI 2.0 Appendix F. Apparently some sinks
5505          * have trouble realizing that they shuld switch from 3D to 2D
5506          * mode if the source simply stops sending the infoframe when
5507          * it wants to switch from 3D to 2D.
5508          */
5509         frame->vic = drm_mode_hdmi_vic(connector, mode);
5510         frame->s3d_struct = s3d_structure_from_display_mode(mode);
5511
5512         return 0;
5513 }
5514 EXPORT_SYMBOL(drm_hdmi_vendor_infoframe_from_display_mode);
5515
5516 static int drm_parse_tiled_block(struct drm_connector *connector,
5517                                  struct displayid_block *block)
5518 {
5519         struct displayid_tiled_block *tile = (struct displayid_tiled_block *)block;
5520         u16 w, h;
5521         u8 tile_v_loc, tile_h_loc;
5522         u8 num_v_tile, num_h_tile;
5523         struct drm_tile_group *tg;
5524
5525         w = tile->tile_size[0] | tile->tile_size[1] << 8;
5526         h = tile->tile_size[2] | tile->tile_size[3] << 8;
5527
5528         num_v_tile = (tile->topo[0] & 0xf) | (tile->topo[2] & 0x30);
5529         num_h_tile = (tile->topo[0] >> 4) | ((tile->topo[2] >> 2) & 0x30);
5530         tile_v_loc = (tile->topo[1] & 0xf) | ((tile->topo[2] & 0x3) << 4);
5531         tile_h_loc = (tile->topo[1] >> 4) | (((tile->topo[2] >> 2) & 0x3) << 4);
5532
5533         connector->has_tile = true;
5534         if (tile->tile_cap & 0x80)
5535                 connector->tile_is_single_monitor = true;
5536
5537         connector->num_h_tile = num_h_tile + 1;
5538         connector->num_v_tile = num_v_tile + 1;
5539         connector->tile_h_loc = tile_h_loc;
5540         connector->tile_v_loc = tile_v_loc;
5541         connector->tile_h_size = w + 1;
5542         connector->tile_v_size = h + 1;
5543
5544         DRM_DEBUG_KMS("tile cap 0x%x\n", tile->tile_cap);
5545         DRM_DEBUG_KMS("tile_size %d x %d\n", w + 1, h + 1);
5546         DRM_DEBUG_KMS("topo num tiles %dx%d, location %dx%d\n",
5547                       num_h_tile + 1, num_v_tile + 1, tile_h_loc, tile_v_loc);
5548         DRM_DEBUG_KMS("vend %c%c%c\n", tile->topology_id[0], tile->topology_id[1], tile->topology_id[2]);
5549
5550         tg = drm_mode_get_tile_group(connector->dev, tile->topology_id);
5551         if (!tg) {
5552                 tg = drm_mode_create_tile_group(connector->dev, tile->topology_id);
5553         }
5554         if (!tg)
5555                 return -ENOMEM;
5556
5557         if (connector->tile_group != tg) {
5558                 /* if we haven't got a pointer,
5559                    take the reference, drop ref to old tile group */
5560                 if (connector->tile_group) {
5561                         drm_mode_put_tile_group(connector->dev, connector->tile_group);
5562                 }
5563                 connector->tile_group = tg;
5564         } else
5565                 /* if same tile group, then release the ref we just took. */
5566                 drm_mode_put_tile_group(connector->dev, tg);
5567         return 0;
5568 }
5569
5570 static int drm_parse_display_id(struct drm_connector *connector,
5571                                 u8 *displayid, int length,
5572                                 bool is_edid_extension)
5573 {
5574         /* if this is an EDID extension the first byte will be 0x70 */
5575         int idx = 0;
5576         struct displayid_block *block;
5577         int ret;
5578
5579         if (is_edid_extension)
5580                 idx = 1;
5581
5582         ret = validate_displayid(displayid, length, idx);
5583         if (ret)
5584                 return ret;
5585
5586         idx += sizeof(struct displayid_hdr);
5587         for_each_displayid_db(displayid, block, idx, length) {
5588                 DRM_DEBUG_KMS("block id 0x%x, rev %d, len %d\n",
5589                               block->tag, block->rev, block->num_bytes);
5590
5591                 switch (block->tag) {
5592                 case DATA_BLOCK_TILED_DISPLAY:
5593                         ret = drm_parse_tiled_block(connector, block);
5594                         if (ret)
5595                                 return ret;
5596                         break;
5597                 case DATA_BLOCK_TYPE_1_DETAILED_TIMING:
5598                         /* handled in mode gathering code. */
5599                         break;
5600                 case DATA_BLOCK_CTA:
5601                         /* handled in the cea parser code. */
5602                         break;
5603                 default:
5604                         DRM_DEBUG_KMS("found DisplayID tag 0x%x, unhandled\n", block->tag);
5605                         break;
5606                 }
5607         }
5608         return 0;
5609 }
5610
5611 static void drm_get_displayid(struct drm_connector *connector,
5612                               struct edid *edid)
5613 {
5614         void *displayid = NULL;
5615         int ret;
5616         connector->has_tile = false;
5617         displayid = drm_find_displayid_extension(edid);
5618         if (!displayid) {
5619                 /* drop reference to any tile group we had */
5620                 goto out_drop_ref;
5621         }
5622
5623         ret = drm_parse_display_id(connector, displayid, EDID_LENGTH, true);
5624         if (ret < 0)
5625                 goto out_drop_ref;
5626         if (!connector->has_tile)
5627                 goto out_drop_ref;
5628         return;
5629 out_drop_ref:
5630         if (connector->tile_group) {
5631                 drm_mode_put_tile_group(connector->dev, connector->tile_group);
5632                 connector->tile_group = NULL;
5633         }
5634         return;
5635 }