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1/*
2 * Copyright (c) 2006 Luc Verhaegen (quirks list)
3 * Copyright (c) 2007-2008 Intel Corporation
4 *   Jesse Barnes <jesse.barnes@intel.com>
5 * Copyright 2010 Red Hat, Inc.
6 *
7 * DDC probing routines (drm_ddc_read & drm_do_probe_ddc_edid) originally from
8 * FB layer.
9 *   Copyright (C) 2006 Dennis Munsie <dmunsie@cecropia.com>
10 *
11 * Permission is hereby granted, free of charge, to any person obtaining a
12 * copy of this software and associated documentation files (the "Software"),
13 * to deal in the Software without restriction, including without limitation
14 * the rights to use, copy, modify, merge, publish, distribute, sub license,
15 * and/or sell copies of the Software, and to permit persons to whom the
16 * Software is furnished to do so, subject to the following conditions:
17 *
18 * The above copyright notice and this permission notice (including the
19 * next paragraph) shall be included in all copies or substantial portions
20 * of the Software.
21 *
22 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
23 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
24 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
25 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
26 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
27 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
28 * DEALINGS IN THE SOFTWARE.
29 */
30#include <linux/kernel.h>
31#include <linux/slab.h>
32#include <linux/hdmi.h>
33#include <linux/i2c.h>
34#include <linux/module.h>
35#include <drm/drmP.h>
36#include <drm/drm_edid.h>
37
38#define version_greater(edid, maj, min) \
39	(((edid)->version > (maj)) || \
40	 ((edid)->version == (maj) && (edid)->revision > (min)))
41
42#define EDID_EST_TIMINGS 16
43#define EDID_STD_TIMINGS 8
44#define EDID_DETAILED_TIMINGS 4
45
46/*
47 * EDID blocks out in the wild have a variety of bugs, try to collect
48 * them here (note that userspace may work around broken monitors first,
49 * but fixes should make their way here so that the kernel "just works"
50 * on as many displays as possible).
51 */
52
53/* First detailed mode wrong, use largest 60Hz mode */
54#define EDID_QUIRK_PREFER_LARGE_60		(1 << 0)
55/* Reported 135MHz pixel clock is too high, needs adjustment */
56#define EDID_QUIRK_135_CLOCK_TOO_HIGH		(1 << 1)
57/* Prefer the largest mode at 75 Hz */
58#define EDID_QUIRK_PREFER_LARGE_75		(1 << 2)
59/* Detail timing is in cm not mm */
60#define EDID_QUIRK_DETAILED_IN_CM		(1 << 3)
61/* Detailed timing descriptors have bogus size values, so just take the
62 * maximum size and use that.
63 */
64#define EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE	(1 << 4)
65/* Monitor forgot to set the first detailed is preferred bit. */
66#define EDID_QUIRK_FIRST_DETAILED_PREFERRED	(1 << 5)
67/* use +hsync +vsync for detailed mode */
68#define EDID_QUIRK_DETAILED_SYNC_PP		(1 << 6)
69/* Force reduced-blanking timings for detailed modes */
70#define EDID_QUIRK_FORCE_REDUCED_BLANKING	(1 << 7)
71/* Force 8bpc */
72#define EDID_QUIRK_FORCE_8BPC			(1 << 8)
73/* Force 12bpc */
74#define EDID_QUIRK_FORCE_12BPC			(1 << 9)
75
76struct detailed_mode_closure {
77	struct drm_connector *connector;
78	struct edid *edid;
79	bool preferred;
80	u32 quirks;
81	int modes;
82};
83
84#define LEVEL_DMT	0
85#define LEVEL_GTF	1
86#define LEVEL_GTF2	2
87#define LEVEL_CVT	3
88
89static struct edid_quirk {
90	char vendor[4];
91	int product_id;
92	u32 quirks;
93} edid_quirk_list[] = {
94	/* Acer AL1706 */
95	{ "ACR", 44358, EDID_QUIRK_PREFER_LARGE_60 },
96	/* Acer F51 */
97	{ "API", 0x7602, EDID_QUIRK_PREFER_LARGE_60 },
98	/* Unknown Acer */
99	{ "ACR", 2423, EDID_QUIRK_FIRST_DETAILED_PREFERRED },
100
101	/* Belinea 10 15 55 */
102	{ "MAX", 1516, EDID_QUIRK_PREFER_LARGE_60 },
103	{ "MAX", 0x77e, EDID_QUIRK_PREFER_LARGE_60 },
104
105	/* Envision Peripherals, Inc. EN-7100e */
106	{ "EPI", 59264, EDID_QUIRK_135_CLOCK_TOO_HIGH },
107	/* Envision EN2028 */
108	{ "EPI", 8232, EDID_QUIRK_PREFER_LARGE_60 },
109
110	/* Funai Electronics PM36B */
111	{ "FCM", 13600, EDID_QUIRK_PREFER_LARGE_75 |
112	  EDID_QUIRK_DETAILED_IN_CM },
113
114	/* LG Philips LCD LP154W01-A5 */
115	{ "LPL", 0, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE },
116	{ "LPL", 0x2a00, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE },
117
118	/* Philips 107p5 CRT */
119	{ "PHL", 57364, EDID_QUIRK_FIRST_DETAILED_PREFERRED },
120
121	/* Proview AY765C */
122	{ "PTS", 765, EDID_QUIRK_FIRST_DETAILED_PREFERRED },
123
124	/* Samsung SyncMaster 205BW.  Note: irony */
125	{ "SAM", 541, EDID_QUIRK_DETAILED_SYNC_PP },
126	/* Samsung SyncMaster 22[5-6]BW */
127	{ "SAM", 596, EDID_QUIRK_PREFER_LARGE_60 },
128	{ "SAM", 638, EDID_QUIRK_PREFER_LARGE_60 },
129
130	/* Sony PVM-2541A does up to 12 bpc, but only reports max 8 bpc */
131	{ "SNY", 0x2541, EDID_QUIRK_FORCE_12BPC },
132
133	/* ViewSonic VA2026w */
134	{ "VSC", 5020, EDID_QUIRK_FORCE_REDUCED_BLANKING },
135
136	/* Medion MD 30217 PG */
137	{ "MED", 0x7b8, EDID_QUIRK_PREFER_LARGE_75 },
138
139	/* Panel in Samsung NP700G7A-S01PL notebook reports 6bpc */
140	{ "SEC", 0xd033, EDID_QUIRK_FORCE_8BPC },
141};
142
143/*
144 * Autogenerated from the DMT spec.
145 * This table is copied from xfree86/modes/xf86EdidModes.c.
146 */
147static const struct drm_display_mode drm_dmt_modes[] = {
148	/* 640x350@85Hz */
149	{ DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER, 31500, 640, 672,
150		   736, 832, 0, 350, 382, 385, 445, 0,
151		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
152	/* 640x400@85Hz */
153	{ DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER, 31500, 640, 672,
154		   736, 832, 0, 400, 401, 404, 445, 0,
155		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
156	/* 720x400@85Hz */
157	{ DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 756,
158		   828, 936, 0, 400, 401, 404, 446, 0,
159		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
160	/* 640x480@60Hz */
161	{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
162		   752, 800, 0, 480, 489, 492, 525, 0,
163		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
164	/* 640x480@72Hz */
165	{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664,
166		   704, 832, 0, 480, 489, 492, 520, 0,
167		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
168	/* 640x480@75Hz */
169	{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 656,
170		   720, 840, 0, 480, 481, 484, 500, 0,
171		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
172	/* 640x480@85Hz */
173	{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 36000, 640, 696,
174		   752, 832, 0, 480, 481, 484, 509, 0,
175		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
176	/* 800x600@56Hz */
177	{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 36000, 800, 824,
178		   896, 1024, 0, 600, 601, 603, 625, 0,
179		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
180	/* 800x600@60Hz */
181	{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
182		   968, 1056, 0, 600, 601, 605, 628, 0,
183		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
184	/* 800x600@72Hz */
185	{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 50000, 800, 856,
186		   976, 1040, 0, 600, 637, 643, 666, 0,
187		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
188	/* 800x600@75Hz */
189	{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 49500, 800, 816,
190		   896, 1056, 0, 600, 601, 604, 625, 0,
191		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
192	/* 800x600@85Hz */
193	{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 56250, 800, 832,
194		   896, 1048, 0, 600, 601, 604, 631, 0,
195		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
196	/* 800x600@120Hz RB */
197	{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 73250, 800, 848,
198		   880, 960, 0, 600, 603, 607, 636, 0,
199		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
200	/* 848x480@60Hz */
201	{ DRM_MODE("848x480", DRM_MODE_TYPE_DRIVER, 33750, 848, 864,
202		   976, 1088, 0, 480, 486, 494, 517, 0,
203		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
204	/* 1024x768@43Hz, interlace */
205	{ DRM_MODE("1024x768i", DRM_MODE_TYPE_DRIVER, 44900, 1024, 1032,
206		   1208, 1264, 0, 768, 768, 772, 817, 0,
207		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
208			DRM_MODE_FLAG_INTERLACE) },
209	/* 1024x768@60Hz */
210	{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
211		   1184, 1344, 0, 768, 771, 777, 806, 0,
212		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
213	/* 1024x768@70Hz */
214	{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 75000, 1024, 1048,
215		   1184, 1328, 0, 768, 771, 777, 806, 0,
216		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
217	/* 1024x768@75Hz */
218	{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78750, 1024, 1040,
219		   1136, 1312, 0, 768, 769, 772, 800, 0,
220		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
221	/* 1024x768@85Hz */
222	{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 94500, 1024, 1072,
223		   1168, 1376, 0, 768, 769, 772, 808, 0,
224		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
225	/* 1024x768@120Hz RB */
226	{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 115500, 1024, 1072,
227		   1104, 1184, 0, 768, 771, 775, 813, 0,
228		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
229	/* 1152x864@75Hz */
230	{ DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
231		   1344, 1600, 0, 864, 865, 868, 900, 0,
232		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
233	/* 1280x768@60Hz RB */
234	{ DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 68250, 1280, 1328,
235		   1360, 1440, 0, 768, 771, 778, 790, 0,
236		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
237	/* 1280x768@60Hz */
238	{ DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
239		   1472, 1664, 0, 768, 771, 778, 798, 0,
240		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
241	/* 1280x768@75Hz */
242	{ DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 102250, 1280, 1360,
243		   1488, 1696, 0, 768, 771, 778, 805, 0,
244		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
245	/* 1280x768@85Hz */
246	{ DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 117500, 1280, 1360,
247		   1496, 1712, 0, 768, 771, 778, 809, 0,
248		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
249	/* 1280x768@120Hz RB */
250	{ DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 140250, 1280, 1328,
251		   1360, 1440, 0, 768, 771, 778, 813, 0,
252		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
253	/* 1280x800@60Hz RB */
254	{ DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 71000, 1280, 1328,
255		   1360, 1440, 0, 800, 803, 809, 823, 0,
256		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
257	/* 1280x800@60Hz */
258	{ DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
259		   1480, 1680, 0, 800, 803, 809, 831, 0,
260		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
261	/* 1280x800@75Hz */
262	{ DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 106500, 1280, 1360,
263		   1488, 1696, 0, 800, 803, 809, 838, 0,
264		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
265	/* 1280x800@85Hz */
266	{ DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 122500, 1280, 1360,
267		   1496, 1712, 0, 800, 803, 809, 843, 0,
268		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
269	/* 1280x800@120Hz RB */
270	{ DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 146250, 1280, 1328,
271		   1360, 1440, 0, 800, 803, 809, 847, 0,
272		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
273	/* 1280x960@60Hz */
274	{ DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
275		   1488, 1800, 0, 960, 961, 964, 1000, 0,
276		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
277	/* 1280x960@85Hz */
278	{ DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1344,
279		   1504, 1728, 0, 960, 961, 964, 1011, 0,
280		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
281	/* 1280x960@120Hz RB */
282	{ DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 175500, 1280, 1328,
283		   1360, 1440, 0, 960, 963, 967, 1017, 0,
284		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
285	/* 1280x1024@60Hz */
286	{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
287		   1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
288		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
289	/* 1280x1024@75Hz */
290	{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 135000, 1280, 1296,
291		   1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
292		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
293	/* 1280x1024@85Hz */
294	{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 157500, 1280, 1344,
295		   1504, 1728, 0, 1024, 1025, 1028, 1072, 0,
296		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
297	/* 1280x1024@120Hz RB */
298	{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 187250, 1280, 1328,
299		   1360, 1440, 0, 1024, 1027, 1034, 1084, 0,
300		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
301	/* 1360x768@60Hz */
302	{ DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
303		   1536, 1792, 0, 768, 771, 777, 795, 0,
304		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
305	/* 1360x768@120Hz RB */
306	{ DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 148250, 1360, 1408,
307		   1440, 1520, 0, 768, 771, 776, 813, 0,
308		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
309	/* 1400x1050@60Hz RB */
310	{ DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 101000, 1400, 1448,
311		   1480, 1560, 0, 1050, 1053, 1057, 1080, 0,
312		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
313	/* 1400x1050@60Hz */
314	{ DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
315		   1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
316		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
317	/* 1400x1050@75Hz */
318	{ DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 156000, 1400, 1504,
319		   1648, 1896, 0, 1050, 1053, 1057, 1099, 0,
320		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
321	/* 1400x1050@85Hz */
322	{ DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 179500, 1400, 1504,
323		   1656, 1912, 0, 1050, 1053, 1057, 1105, 0,
324		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
325	/* 1400x1050@120Hz RB */
326	{ DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 208000, 1400, 1448,
327		   1480, 1560, 0, 1050, 1053, 1057, 1112, 0,
328		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
329	/* 1440x900@60Hz RB */
330	{ DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 88750, 1440, 1488,
331		   1520, 1600, 0, 900, 903, 909, 926, 0,
332		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
333	/* 1440x900@60Hz */
334	{ DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
335		   1672, 1904, 0, 900, 903, 909, 934, 0,
336		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
337	/* 1440x900@75Hz */
338	{ DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 136750, 1440, 1536,
339		   1688, 1936, 0, 900, 903, 909, 942, 0,
340		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
341	/* 1440x900@85Hz */
342	{ DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 157000, 1440, 1544,
343		   1696, 1952, 0, 900, 903, 909, 948, 0,
344		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
345	/* 1440x900@120Hz RB */
346	{ DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 182750, 1440, 1488,
347		   1520, 1600, 0, 900, 903, 909, 953, 0,
348		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
349	/* 1600x1200@60Hz */
350	{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
351		   1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
352		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
353	/* 1600x1200@65Hz */
354	{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 175500, 1600, 1664,
355		   1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
356		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
357	/* 1600x1200@70Hz */
358	{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 189000, 1600, 1664,
359		   1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
360		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
361	/* 1600x1200@75Hz */
362	{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 202500, 1600, 1664,
363		   1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
364		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
365	/* 1600x1200@85Hz */
366	{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 229500, 1600, 1664,
367		   1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
368		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
369	/* 1600x1200@120Hz RB */
370	{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 268250, 1600, 1648,
371		   1680, 1760, 0, 1200, 1203, 1207, 1271, 0,
372		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
373	/* 1680x1050@60Hz RB */
374	{ DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 119000, 1680, 1728,
375		   1760, 1840, 0, 1050, 1053, 1059, 1080, 0,
376		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
377	/* 1680x1050@60Hz */
378	{ DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
379		   1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
380		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
381	/* 1680x1050@75Hz */
382	{ DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 187000, 1680, 1800,
383		   1976, 2272, 0, 1050, 1053, 1059, 1099, 0,
384		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
385	/* 1680x1050@85Hz */
386	{ DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 214750, 1680, 1808,
387		   1984, 2288, 0, 1050, 1053, 1059, 1105, 0,
388		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
389	/* 1680x1050@120Hz RB */
390	{ DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 245500, 1680, 1728,
391		   1760, 1840, 0, 1050, 1053, 1059, 1112, 0,
392		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
393	/* 1792x1344@60Hz */
394	{ DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
395		   2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
396		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
397	/* 1792x1344@75Hz */
398	{ DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 261000, 1792, 1888,
399		   2104, 2456, 0, 1344, 1345, 1348, 1417, 0,
400		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
401	/* 1792x1344@120Hz RB */
402	{ DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 333250, 1792, 1840,
403		   1872, 1952, 0, 1344, 1347, 1351, 1423, 0,
404		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
405	/* 1856x1392@60Hz */
406	{ DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
407		   2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
408		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
409	/* 1856x1392@75Hz */
410	{ DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 288000, 1856, 1984,
411		   2208, 2560, 0, 1392, 1395, 1399, 1500, 0,
412		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
413	/* 1856x1392@120Hz RB */
414	{ DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 356500, 1856, 1904,
415		   1936, 2016, 0, 1392, 1395, 1399, 1474, 0,
416		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
417	/* 1920x1200@60Hz RB */
418	{ DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 154000, 1920, 1968,
419		   2000, 2080, 0, 1200, 1203, 1209, 1235, 0,
420		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
421	/* 1920x1200@60Hz */
422	{ DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
423		   2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
424		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
425	/* 1920x1200@75Hz */
426	{ DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 245250, 1920, 2056,
427		   2264, 2608, 0, 1200, 1203, 1209, 1255, 0,
428		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
429	/* 1920x1200@85Hz */
430	{ DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 281250, 1920, 2064,
431		   2272, 2624, 0, 1200, 1203, 1209, 1262, 0,
432		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
433	/* 1920x1200@120Hz RB */
434	{ DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 317000, 1920, 1968,
435		   2000, 2080, 0, 1200, 1203, 1209, 1271, 0,
436		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
437	/* 1920x1440@60Hz */
438	{ DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
439		   2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
440		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
441	/* 1920x1440@75Hz */
442	{ DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2064,
443		   2288, 2640, 0, 1440, 1441, 1444, 1500, 0,
444		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
445	/* 1920x1440@120Hz RB */
446	{ DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 380500, 1920, 1968,
447		   2000, 2080, 0, 1440, 1443, 1447, 1525, 0,
448		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
449	/* 2560x1600@60Hz RB */
450	{ DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 268500, 2560, 2608,
451		   2640, 2720, 0, 1600, 1603, 1609, 1646, 0,
452		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
453	/* 2560x1600@60Hz */
454	{ DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
455		   3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
456		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
457	/* 2560x1600@75HZ */
458	{ DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 443250, 2560, 2768,
459		   3048, 3536, 0, 1600, 1603, 1609, 1672, 0,
460		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
461	/* 2560x1600@85HZ */
462	{ DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 505250, 2560, 2768,
463		   3048, 3536, 0, 1600, 1603, 1609, 1682, 0,
464		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
465	/* 2560x1600@120Hz RB */
466	{ DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 552750, 2560, 2608,
467		   2640, 2720, 0, 1600, 1603, 1609, 1694, 0,
468		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
469};
470
471/*
472 * These more or less come from the DMT spec.  The 720x400 modes are
473 * inferred from historical 80x25 practice.  The 640x480@67 and 832x624@75
474 * modes are old-school Mac modes.  The EDID spec says the 1152x864@75 mode
475 * should be 1152x870, again for the Mac, but instead we use the x864 DMT
476 * mode.
477 *
478 * The DMT modes have been fact-checked; the rest are mild guesses.
479 */
480static const struct drm_display_mode edid_est_modes[] = {
481	{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
482		   968, 1056, 0, 600, 601, 605, 628, 0,
483		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@60Hz */
484	{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 36000, 800, 824,
485		   896, 1024, 0, 600, 601, 603,  625, 0,
486		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@56Hz */
487	{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 656,
488		   720, 840, 0, 480, 481, 484, 500, 0,
489		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@75Hz */
490	{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664,
491		   704,  832, 0, 480, 489, 491, 520, 0,
492		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@72Hz */
493	{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 30240, 640, 704,
494		   768,  864, 0, 480, 483, 486, 525, 0,
495		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@67Hz */
496	{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25200, 640, 656,
497		   752, 800, 0, 480, 490, 492, 525, 0,
498		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@60Hz */
499	{ DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 738,
500		   846, 900, 0, 400, 421, 423,  449, 0,
501		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 720x400@88Hz */
502	{ DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 28320, 720, 738,
503		   846,  900, 0, 400, 412, 414, 449, 0,
504		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 720x400@70Hz */
505	{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 135000, 1280, 1296,
506		   1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
507		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1280x1024@75Hz */
508	{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78800, 1024, 1040,
509		   1136, 1312, 0,  768, 769, 772, 800, 0,
510		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1024x768@75Hz */
511	{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 75000, 1024, 1048,
512		   1184, 1328, 0,  768, 771, 777, 806, 0,
513		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1024x768@70Hz */
514	{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
515		   1184, 1344, 0,  768, 771, 777, 806, 0,
516		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1024x768@60Hz */
517	{ DRM_MODE("1024x768i", DRM_MODE_TYPE_DRIVER,44900, 1024, 1032,
518		   1208, 1264, 0, 768, 768, 776, 817, 0,
519		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_INTERLACE) }, /* 1024x768@43Hz */
520	{ DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 57284, 832, 864,
521		   928, 1152, 0, 624, 625, 628, 667, 0,
522		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 832x624@75Hz */
523	{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 49500, 800, 816,
524		   896, 1056, 0, 600, 601, 604,  625, 0,
525		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@75Hz */
526	{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 50000, 800, 856,
527		   976, 1040, 0, 600, 637, 643, 666, 0,
528		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@72Hz */
529	{ DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
530		   1344, 1600, 0,  864, 865, 868, 900, 0,
531		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1152x864@75Hz */
532};
533
534struct minimode {
535	short w;
536	short h;
537	short r;
538	short rb;
539};
540
541static const struct minimode est3_modes[] = {
542	/* byte 6 */
543	{ 640, 350, 85, 0 },
544	{ 640, 400, 85, 0 },
545	{ 720, 400, 85, 0 },
546	{ 640, 480, 85, 0 },
547	{ 848, 480, 60, 0 },
548	{ 800, 600, 85, 0 },
549	{ 1024, 768, 85, 0 },
550	{ 1152, 864, 75, 0 },
551	/* byte 7 */
552	{ 1280, 768, 60, 1 },
553	{ 1280, 768, 60, 0 },
554	{ 1280, 768, 75, 0 },
555	{ 1280, 768, 85, 0 },
556	{ 1280, 960, 60, 0 },
557	{ 1280, 960, 85, 0 },
558	{ 1280, 1024, 60, 0 },
559	{ 1280, 1024, 85, 0 },
560	/* byte 8 */
561	{ 1360, 768, 60, 0 },
562	{ 1440, 900, 60, 1 },
563	{ 1440, 900, 60, 0 },
564	{ 1440, 900, 75, 0 },
565	{ 1440, 900, 85, 0 },
566	{ 1400, 1050, 60, 1 },
567	{ 1400, 1050, 60, 0 },
568	{ 1400, 1050, 75, 0 },
569	/* byte 9 */
570	{ 1400, 1050, 85, 0 },
571	{ 1680, 1050, 60, 1 },
572	{ 1680, 1050, 60, 0 },
573	{ 1680, 1050, 75, 0 },
574	{ 1680, 1050, 85, 0 },
575	{ 1600, 1200, 60, 0 },
576	{ 1600, 1200, 65, 0 },
577	{ 1600, 1200, 70, 0 },
578	/* byte 10 */
579	{ 1600, 1200, 75, 0 },
580	{ 1600, 1200, 85, 0 },
581	{ 1792, 1344, 60, 0 },
582	{ 1792, 1344, 75, 0 },
583	{ 1856, 1392, 60, 0 },
584	{ 1856, 1392, 75, 0 },
585	{ 1920, 1200, 60, 1 },
586	{ 1920, 1200, 60, 0 },
587	/* byte 11 */
588	{ 1920, 1200, 75, 0 },
589	{ 1920, 1200, 85, 0 },
590	{ 1920, 1440, 60, 0 },
591	{ 1920, 1440, 75, 0 },
592};
593
594static const struct minimode extra_modes[] = {
595	{ 1024, 576,  60, 0 },
596	{ 1366, 768,  60, 0 },
597	{ 1600, 900,  60, 0 },
598	{ 1680, 945,  60, 0 },
599	{ 1920, 1080, 60, 0 },
600	{ 2048, 1152, 60, 0 },
601	{ 2048, 1536, 60, 0 },
602};
603
604/*
605 * Probably taken from CEA-861 spec.
606 * This table is converted from xorg's hw/xfree86/modes/xf86EdidModes.c.
607 */
608static const struct drm_display_mode edid_cea_modes[] = {
609	/* 1 - 640x480@60Hz */
610	{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
611		   752, 800, 0, 480, 490, 492, 525, 0,
612		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
613	  .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
614	/* 2 - 720x480@60Hz */
615	{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 27000, 720, 736,
616		   798, 858, 0, 480, 489, 495, 525, 0,
617		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
618	  .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
619	/* 3 - 720x480@60Hz */
620	{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 27000, 720, 736,
621		   798, 858, 0, 480, 489, 495, 525, 0,
622		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
623	  .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
624	/* 4 - 1280x720@60Hz */
625	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1390,
626		   1430, 1650, 0, 720, 725, 730, 750, 0,
627		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
628	  .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
629	/* 5 - 1920x1080i@60Hz */
630	{ DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2008,
631		   2052, 2200, 0, 1080, 1084, 1094, 1125, 0,
632		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
633			DRM_MODE_FLAG_INTERLACE),
634	  .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
635	/* 6 - 720(1440)x480i@60Hz */
636	{ DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 13500, 720, 739,
637		   801, 858, 0, 480, 488, 494, 525, 0,
638		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
639			DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
640	  .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
641	/* 7 - 720(1440)x480i@60Hz */
642	{ DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 13500, 720, 739,
643		   801, 858, 0, 480, 488, 494, 525, 0,
644		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
645			DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
646	  .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
647	/* 8 - 720(1440)x240@60Hz */
648	{ DRM_MODE("720x240", DRM_MODE_TYPE_DRIVER, 13500, 720, 739,
649		   801, 858, 0, 240, 244, 247, 262, 0,
650		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
651			DRM_MODE_FLAG_DBLCLK),
652	  .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
653	/* 9 - 720(1440)x240@60Hz */
654	{ DRM_MODE("720x240", DRM_MODE_TYPE_DRIVER, 13500, 720, 739,
655		   801, 858, 0, 240, 244, 247, 262, 0,
656		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
657			DRM_MODE_FLAG_DBLCLK),
658	  .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
659	/* 10 - 2880x480i@60Hz */
660	{ DRM_MODE("2880x480i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
661		   3204, 3432, 0, 480, 488, 494, 525, 0,
662		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
663			DRM_MODE_FLAG_INTERLACE),
664	  .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
665	/* 11 - 2880x480i@60Hz */
666	{ DRM_MODE("2880x480i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
667		   3204, 3432, 0, 480, 488, 494, 525, 0,
668		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
669			DRM_MODE_FLAG_INTERLACE),
670	  .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
671	/* 12 - 2880x240@60Hz */
672	{ DRM_MODE("2880x240", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
673		   3204, 3432, 0, 240, 244, 247, 262, 0,
674		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
675	  .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
676	/* 13 - 2880x240@60Hz */
677	{ DRM_MODE("2880x240", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
678		   3204, 3432, 0, 240, 244, 247, 262, 0,
679		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
680	  .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
681	/* 14 - 1440x480@60Hz */
682	{ DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1472,
683		   1596, 1716, 0, 480, 489, 495, 525, 0,
684		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
685	  .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
686	/* 15 - 1440x480@60Hz */
687	{ DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1472,
688		   1596, 1716, 0, 480, 489, 495, 525, 0,
689		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
690	  .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
691	/* 16 - 1920x1080@60Hz */
692	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
693		   2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
694		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
695	  .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
696	/* 17 - 720x576@50Hz */
697	{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
698		   796, 864, 0, 576, 581, 586, 625, 0,
699		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
700	  .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
701	/* 18 - 720x576@50Hz */
702	{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
703		   796, 864, 0, 576, 581, 586, 625, 0,
704		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
705	  .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
706	/* 19 - 1280x720@50Hz */
707	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1720,
708		   1760, 1980, 0, 720, 725, 730, 750, 0,
709		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
710	  .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
711	/* 20 - 1920x1080i@50Hz */
712	{ DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2448,
713		   2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
714		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
715			DRM_MODE_FLAG_INTERLACE),
716	  .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
717	/* 21 - 720(1440)x576i@50Hz */
718	{ DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 13500, 720, 732,
719		   795, 864, 0, 576, 580, 586, 625, 0,
720		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
721			DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
722	  .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
723	/* 22 - 720(1440)x576i@50Hz */
724	{ DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 13500, 720, 732,
725		   795, 864, 0, 576, 580, 586, 625, 0,
726		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
727			DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
728	  .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
729	/* 23 - 720(1440)x288@50Hz */
730	{ DRM_MODE("720x288", DRM_MODE_TYPE_DRIVER, 13500, 720, 732,
731		   795, 864, 0, 288, 290, 293, 312, 0,
732		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
733			DRM_MODE_FLAG_DBLCLK),
734	  .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
735	/* 24 - 720(1440)x288@50Hz */
736	{ DRM_MODE("720x288", DRM_MODE_TYPE_DRIVER, 13500, 720, 732,
737		   795, 864, 0, 288, 290, 293, 312, 0,
738		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
739			DRM_MODE_FLAG_DBLCLK),
740	  .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
741	/* 25 - 2880x576i@50Hz */
742	{ DRM_MODE("2880x576i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
743		   3180, 3456, 0, 576, 580, 586, 625, 0,
744		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
745			DRM_MODE_FLAG_INTERLACE),
746	  .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
747	/* 26 - 2880x576i@50Hz */
748	{ DRM_MODE("2880x576i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
749		   3180, 3456, 0, 576, 580, 586, 625, 0,
750		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
751			DRM_MODE_FLAG_INTERLACE),
752	  .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
753	/* 27 - 2880x288@50Hz */
754	{ DRM_MODE("2880x288", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
755		   3180, 3456, 0, 288, 290, 293, 312, 0,
756		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
757	  .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
758	/* 28 - 2880x288@50Hz */
759	{ DRM_MODE("2880x288", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
760		   3180, 3456, 0, 288, 290, 293, 312, 0,
761		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
762	  .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
763	/* 29 - 1440x576@50Hz */
764	{ DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1464,
765		   1592, 1728, 0, 576, 581, 586, 625, 0,
766		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
767	  .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
768	/* 30 - 1440x576@50Hz */
769	{ DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1464,
770		   1592, 1728, 0, 576, 581, 586, 625, 0,
771		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
772	  .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
773	/* 31 - 1920x1080@50Hz */
774	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2448,
775		   2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
776		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
777	  .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
778	/* 32 - 1920x1080@24Hz */
779	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2558,
780		   2602, 2750, 0, 1080, 1084, 1089, 1125, 0,
781		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
782	  .vrefresh = 24, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
783	/* 33 - 1920x1080@25Hz */
784	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2448,
785		   2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
786		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
787	  .vrefresh = 25, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
788	/* 34 - 1920x1080@30Hz */
789	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2008,
790		   2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
791		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
792	  .vrefresh = 30, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
793	/* 35 - 2880x480@60Hz */
794	{ DRM_MODE("2880x480", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2944,
795		   3192, 3432, 0, 480, 489, 495, 525, 0,
796		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
797	  .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
798	/* 36 - 2880x480@60Hz */
799	{ DRM_MODE("2880x480", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2944,
800		   3192, 3432, 0, 480, 489, 495, 525, 0,
801		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
802	  .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
803	/* 37 - 2880x576@50Hz */
804	{ DRM_MODE("2880x576", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2928,
805		   3184, 3456, 0, 576, 581, 586, 625, 0,
806		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
807	  .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
808	/* 38 - 2880x576@50Hz */
809	{ DRM_MODE("2880x576", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2928,
810		   3184, 3456, 0, 576, 581, 586, 625, 0,
811		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
812	  .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
813	/* 39 - 1920x1080i@50Hz */
814	{ DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 72000, 1920, 1952,
815		   2120, 2304, 0, 1080, 1126, 1136, 1250, 0,
816		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC |
817			DRM_MODE_FLAG_INTERLACE),
818	  .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
819	/* 40 - 1920x1080i@100Hz */
820	{ DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2448,
821		   2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
822		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
823			DRM_MODE_FLAG_INTERLACE),
824	  .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
825	/* 41 - 1280x720@100Hz */
826	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1720,
827		   1760, 1980, 0, 720, 725, 730, 750, 0,
828		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
829	  .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
830	/* 42 - 720x576@100Hz */
831	{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
832		   796, 864, 0, 576, 581, 586, 625, 0,
833		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
834	  .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
835	/* 43 - 720x576@100Hz */
836	{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
837		   796, 864, 0, 576, 581, 586, 625, 0,
838		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
839	  .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
840	/* 44 - 720(1440)x576i@100Hz */
841	{ DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
842		   795, 864, 0, 576, 580, 586, 625, 0,
843		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
844			DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
845	  .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
846	/* 45 - 720(1440)x576i@100Hz */
847	{ DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
848		   795, 864, 0, 576, 580, 586, 625, 0,
849		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
850			DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
851	  .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
852	/* 46 - 1920x1080i@120Hz */
853	{ DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
854		   2052, 2200, 0, 1080, 1084, 1094, 1125, 0,
855		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
856			DRM_MODE_FLAG_INTERLACE),
857	  .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
858	/* 47 - 1280x720@120Hz */
859	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1390,
860		   1430, 1650, 0, 720, 725, 730, 750, 0,
861		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
862	  .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
863	/* 48 - 720x480@120Hz */
864	{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 54000, 720, 736,
865		   798, 858, 0, 480, 489, 495, 525, 0,
866		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
867	  .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
868	/* 49 - 720x480@120Hz */
869	{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 54000, 720, 736,
870		   798, 858, 0, 480, 489, 495, 525, 0,
871		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
872	  .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
873	/* 50 - 720(1440)x480i@120Hz */
874	{ DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 27000, 720, 739,
875		   801, 858, 0, 480, 488, 494, 525, 0,
876		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
877			DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
878	  .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
879	/* 51 - 720(1440)x480i@120Hz */
880	{ DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 27000, 720, 739,
881		   801, 858, 0, 480, 488, 494, 525, 0,
882		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
883			DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
884	  .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
885	/* 52 - 720x576@200Hz */
886	{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 108000, 720, 732,
887		   796, 864, 0, 576, 581, 586, 625, 0,
888		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
889	  .vrefresh = 200, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
890	/* 53 - 720x576@200Hz */
891	{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 108000, 720, 732,
892		   796, 864, 0, 576, 581, 586, 625, 0,
893		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
894	  .vrefresh = 200, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
895	/* 54 - 720(1440)x576i@200Hz */
896	{ DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
897		   795, 864, 0, 576, 580, 586, 625, 0,
898		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
899			DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
900	  .vrefresh = 200, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
901	/* 55 - 720(1440)x576i@200Hz */
902	{ DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
903		   795, 864, 0, 576, 580, 586, 625, 0,
904		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
905			DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
906	  .vrefresh = 200, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
907	/* 56 - 720x480@240Hz */
908	{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 108000, 720, 736,
909		   798, 858, 0, 480, 489, 495, 525, 0,
910		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
911	  .vrefresh = 240, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
912	/* 57 - 720x480@240Hz */
913	{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 108000, 720, 736,
914		   798, 858, 0, 480, 489, 495, 525, 0,
915		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
916	  .vrefresh = 240, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
917	/* 58 - 720(1440)x480i@240 */
918	{ DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 54000, 720, 739,
919		   801, 858, 0, 480, 488, 494, 525, 0,
920		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
921			DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
922	  .vrefresh = 240, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
923	/* 59 - 720(1440)x480i@240 */
924	{ DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 54000, 720, 739,
925		   801, 858, 0, 480, 488, 494, 525, 0,
926		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
927			DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
928	  .vrefresh = 240, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
929	/* 60 - 1280x720@24Hz */
930	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 59400, 1280, 3040,
931		   3080, 3300, 0, 720, 725, 730, 750, 0,
932		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
933	  .vrefresh = 24, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
934	/* 61 - 1280x720@25Hz */
935	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3700,
936		   3740, 3960, 0, 720, 725, 730, 750, 0,
937		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
938	  .vrefresh = 25, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
939	/* 62 - 1280x720@30Hz */
940	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3040,
941		   3080, 3300, 0, 720, 725, 730, 750, 0,
942		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
943	  .vrefresh = 30, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
944	/* 63 - 1920x1080@120Hz */
945	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2008,
946		   2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
947		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
948	 .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
949	/* 64 - 1920x1080@100Hz */
950	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2448,
951		   2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
952		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
953	 .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
954};
955
956/*
957 * HDMI 1.4 4k modes.
958 */
959static const struct drm_display_mode edid_4k_modes[] = {
960	/* 1 - 3840x2160@30Hz */
961	{ DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000,
962		   3840, 4016, 4104, 4400, 0,
963		   2160, 2168, 2178, 2250, 0,
964		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
965	  .vrefresh = 30, },
966	/* 2 - 3840x2160@25Hz */
967	{ DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000,
968		   3840, 4896, 4984, 5280, 0,
969		   2160, 2168, 2178, 2250, 0,
970		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
971	  .vrefresh = 25, },
972	/* 3 - 3840x2160@24Hz */
973	{ DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000,
974		   3840, 5116, 5204, 5500, 0,
975		   2160, 2168, 2178, 2250, 0,
976		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
977	  .vrefresh = 24, },
978	/* 4 - 4096x2160@24Hz (SMPTE) */
979	{ DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 297000,
980		   4096, 5116, 5204, 5500, 0,
981		   2160, 2168, 2178, 2250, 0,
982		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
983	  .vrefresh = 24, },
984};
985
986/*** DDC fetch and block validation ***/
987
988static const u8 edid_header[] = {
989	0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00
990};
991
992/**
993 * drm_edid_header_is_valid - sanity check the header of the base EDID block
994 * @raw_edid: pointer to raw base EDID block
995 *
996 * Sanity check the header of the base EDID block.
997 *
998 * Return: 8 if the header is perfect, down to 0 if it's totally wrong.
999 */
1000int drm_edid_header_is_valid(const u8 *raw_edid)
1001{
1002	int i, score = 0;
1003
1004	for (i = 0; i < sizeof(edid_header); i++)
1005		if (raw_edid[i] == edid_header[i])
1006			score++;
1007
1008	return score;
1009}
1010EXPORT_SYMBOL(drm_edid_header_is_valid);
1011
1012static int edid_fixup __read_mostly = 6;
1013module_param_named(edid_fixup, edid_fixup, int, 0400);
1014MODULE_PARM_DESC(edid_fixup,
1015		 "Minimum number of valid EDID header bytes (0-8, default 6)");
1016
1017/**
1018 * drm_edid_block_valid - Sanity check the EDID block (base or extension)
1019 * @raw_edid: pointer to raw EDID block
1020 * @block: type of block to validate (0 for base, extension otherwise)
1021 * @print_bad_edid: if true, dump bad EDID blocks to the console
1022 *
1023 * Validate a base or extension EDID block and optionally dump bad blocks to
1024 * the console.
1025 *
1026 * Return: True if the block is valid, false otherwise.
1027 */
1028bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid)
1029{
1030	int i;
1031	u8 csum = 0;
1032	struct edid *edid = (struct edid *)raw_edid;
1033
1034	if (WARN_ON(!raw_edid))
1035		return false;
1036
1037	if (edid_fixup > 8 || edid_fixup < 0)
1038		edid_fixup = 6;
1039
1040	if (block == 0) {
1041		int score = drm_edid_header_is_valid(raw_edid);
1042		if (score == 8) ;
1043		else if (score >= edid_fixup) {
1044			DRM_DEBUG("Fixing EDID header, your hardware may be failing\n");
1045			memcpy(raw_edid, edid_header, sizeof(edid_header));
1046		} else {
1047			goto bad;
1048		}
1049	}
1050
1051	for (i = 0; i < EDID_LENGTH; i++)
1052		csum += raw_edid[i];
1053	if (csum) {
1054		if (print_bad_edid) {
1055			DRM_ERROR("EDID checksum is invalid, remainder is %d\n", csum);
1056		}
1057
1058		/* allow CEA to slide through, switches mangle this */
1059		if (raw_edid[0] != 0x02)
1060			goto bad;
1061	}
1062
1063	/* per-block-type checks */
1064	switch (raw_edid[0]) {
1065	case 0: /* base */
1066		if (edid->version != 1) {
1067			DRM_ERROR("EDID has major version %d, instead of 1\n", edid->version);
1068			goto bad;
1069		}
1070
1071		if (edid->revision > 4)
1072			DRM_DEBUG("EDID minor > 4, assuming backward compatibility\n");
1073		break;
1074
1075	default:
1076		break;
1077	}
1078
1079	return true;
1080
1081bad:
1082	if (print_bad_edid) {
1083		printk(KERN_ERR "Raw EDID:\n");
1084		print_hex_dump(KERN_ERR, " \t", DUMP_PREFIX_NONE, 16, 1,
1085			       raw_edid, EDID_LENGTH, false);
1086	}
1087	return false;
1088}
1089EXPORT_SYMBOL(drm_edid_block_valid);
1090
1091/**
1092 * drm_edid_is_valid - sanity check EDID data
1093 * @edid: EDID data
1094 *
1095 * Sanity-check an entire EDID record (including extensions)
1096 *
1097 * Return: True if the EDID data is valid, false otherwise.
1098 */
1099bool drm_edid_is_valid(struct edid *edid)
1100{
1101	int i;
1102	u8 *raw = (u8 *)edid;
1103
1104	if (!edid)
1105		return false;
1106
1107	for (i = 0; i <= edid->extensions; i++)
1108		if (!drm_edid_block_valid(raw + i * EDID_LENGTH, i, true))
1109			return false;
1110
1111	return true;
1112}
1113EXPORT_SYMBOL(drm_edid_is_valid);
1114
1115#define DDC_SEGMENT_ADDR 0x30
1116/**
1117 * drm_do_probe_ddc_edid() - get EDID information via I2C
1118 * @adapter: I2C device adaptor
1119 * @buf: EDID data buffer to be filled
1120 * @block: 128 byte EDID block to start fetching from
1121 * @len: EDID data buffer length to fetch
1122 *
1123 * Try to fetch EDID information by calling I2C driver functions.
1124 *
1125 * Return: 0 on success or -1 on failure.
1126 */
1127static int
1128drm_do_probe_ddc_edid(struct i2c_adapter *adapter, unsigned char *buf,
1129		      int block, int len)
1130{
1131	unsigned char start = block * EDID_LENGTH;
1132	unsigned char segment = block >> 1;
1133	unsigned char xfers = segment ? 3 : 2;
1134	int ret, retries = 5;
1135
1136	/*
1137	 * The core I2C driver will automatically retry the transfer if the
1138	 * adapter reports EAGAIN. However, we find that bit-banging transfers
1139	 * are susceptible to errors under a heavily loaded machine and
1140	 * generate spurious NAKs and timeouts. Retrying the transfer
1141	 * of the individual block a few times seems to overcome this.
1142	 */
1143	do {
1144		struct i2c_msg msgs[] = {
1145			{
1146				.addr	= DDC_SEGMENT_ADDR,
1147				.flags	= 0,
1148				.len	= 1,
1149				.buf	= &segment,
1150			}, {
1151				.addr	= DDC_ADDR,
1152				.flags	= 0,
1153				.len	= 1,
1154				.buf	= &start,
1155			}, {
1156				.addr	= DDC_ADDR,
1157				.flags	= I2C_M_RD,
1158				.len	= len,
1159				.buf	= buf,
1160			}
1161		};
1162
1163		/*
1164		 * Avoid sending the segment addr to not upset non-compliant
1165		 * DDC monitors.
1166		 */
1167		ret = i2c_transfer(adapter, &msgs[3 - xfers], xfers);
1168
1169		if (ret == -ENXIO) {
1170			DRM_DEBUG_KMS("drm: skipping non-existent adapter %s\n",
1171					adapter->name);
1172			break;
1173		}
1174	} while (ret != xfers && --retries);
1175
1176	return ret == xfers ? 0 : -1;
1177}
1178
1179static bool drm_edid_is_zero(u8 *in_edid, int length)
1180{
1181	if (memchr_inv(in_edid, 0, length))
1182		return false;
1183
1184	return true;
1185}
1186
1187static u8 *
1188drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter)
1189{
1190	int i, j = 0, valid_extensions = 0;
1191	u8 *block, *new;
1192	bool print_bad_edid = !connector->bad_edid_counter || (drm_debug & DRM_UT_KMS);
1193
1194	if ((block = kmalloc(EDID_LENGTH, GFP_KERNEL)) == NULL)
1195		return NULL;
1196
1197	/* base block fetch */
1198	for (i = 0; i < 4; i++) {
1199		if (drm_do_probe_ddc_edid(adapter, block, 0, EDID_LENGTH))
1200			goto out;
1201		if (drm_edid_block_valid(block, 0, print_bad_edid))
1202			break;
1203		if (i == 0 && drm_edid_is_zero(block, EDID_LENGTH)) {
1204			connector->null_edid_counter++;
1205			goto carp;
1206		}
1207	}
1208	if (i == 4)
1209		goto carp;
1210
1211	/* if there's no extensions, we're done */
1212	if (block[0x7e] == 0)
1213		return block;
1214
1215	new = krealloc(block, (block[0x7e] + 1) * EDID_LENGTH, GFP_KERNEL);
1216	if (!new)
1217		goto out;
1218	block = new;
1219
1220	for (j = 1; j <= block[0x7e]; j++) {
1221		for (i = 0; i < 4; i++) {
1222			if (drm_do_probe_ddc_edid(adapter,
1223				  block + (valid_extensions + 1) * EDID_LENGTH,
1224				  j, EDID_LENGTH))
1225				goto out;
1226			if (drm_edid_block_valid(block + (valid_extensions + 1) * EDID_LENGTH, j, print_bad_edid)) {
1227				valid_extensions++;
1228				break;
1229			}
1230		}
1231
1232		if (i == 4 && print_bad_edid) {
1233			dev_warn(connector->dev->dev,
1234			 "%s: Ignoring invalid EDID block %d.\n",
1235			 connector->name, j);
1236
1237			connector->bad_edid_counter++;
1238		}
1239	}
1240
1241	if (valid_extensions != block[0x7e]) {
1242		block[EDID_LENGTH-1] += block[0x7e] - valid_extensions;
1243		block[0x7e] = valid_extensions;
1244		new = krealloc(block, (valid_extensions + 1) * EDID_LENGTH, GFP_KERNEL);
1245		if (!new)
1246			goto out;
1247		block = new;
1248	}
1249
1250	return block;
1251
1252carp:
1253	if (print_bad_edid) {
1254		dev_warn(connector->dev->dev, "%s: EDID block %d invalid.\n",
1255			 connector->name, j);
1256	}
1257	connector->bad_edid_counter++;
1258
1259out:
1260	kfree(block);
1261	return NULL;
1262}
1263
1264/**
1265 * drm_probe_ddc() - probe DDC presence
1266 * @adapter: I2C adapter to probe
1267 *
1268 * Return: True on success, false on failure.
1269 */
1270bool
1271drm_probe_ddc(struct i2c_adapter *adapter)
1272{
1273	unsigned char out;
1274
1275	return (drm_do_probe_ddc_edid(adapter, &out, 0, 1) == 0);
1276}
1277EXPORT_SYMBOL(drm_probe_ddc);
1278
1279/**
1280 * drm_get_edid - get EDID data, if available
1281 * @connector: connector we're probing
1282 * @adapter: I2C adapter to use for DDC
1283 *
1284 * Poke the given I2C channel to grab EDID data if possible.  If found,
1285 * attach it to the connector.
1286 *
1287 * Return: Pointer to valid EDID or NULL if we couldn't find any.
1288 */
1289struct edid *drm_get_edid(struct drm_connector *connector,
1290			  struct i2c_adapter *adapter)
1291{
1292	struct edid *edid = NULL;
1293
1294	if (drm_probe_ddc(adapter))
1295		edid = (struct edid *)drm_do_get_edid(connector, adapter);
1296
1297	return edid;
1298}
1299EXPORT_SYMBOL(drm_get_edid);
1300
1301/**
1302 * drm_edid_duplicate - duplicate an EDID and the extensions
1303 * @edid: EDID to duplicate
1304 *
1305 * Return: Pointer to duplicated EDID or NULL on allocation failure.
1306 */
1307struct edid *drm_edid_duplicate(const struct edid *edid)
1308{
1309	return kmemdup(edid, (edid->extensions + 1) * EDID_LENGTH, GFP_KERNEL);
1310}
1311EXPORT_SYMBOL(drm_edid_duplicate);
1312
1313/*** EDID parsing ***/
1314
1315/**
1316 * edid_vendor - match a string against EDID's obfuscated vendor field
1317 * @edid: EDID to match
1318 * @vendor: vendor string
1319 *
1320 * Returns true if @vendor is in @edid, false otherwise
1321 */
1322static bool edid_vendor(struct edid *edid, char *vendor)
1323{
1324	char edid_vendor[3];
1325
1326	edid_vendor[0] = ((edid->mfg_id[0] & 0x7c) >> 2) + '@';
1327	edid_vendor[1] = (((edid->mfg_id[0] & 0x3) << 3) |
1328			  ((edid->mfg_id[1] & 0xe0) >> 5)) + '@';
1329	edid_vendor[2] = (edid->mfg_id[1] & 0x1f) + '@';
1330
1331	return !strncmp(edid_vendor, vendor, 3);
1332}
1333
1334/**
1335 * edid_get_quirks - return quirk flags for a given EDID
1336 * @edid: EDID to process
1337 *
1338 * This tells subsequent routines what fixes they need to apply.
1339 */
1340static u32 edid_get_quirks(struct edid *edid)
1341{
1342	struct edid_quirk *quirk;
1343	int i;
1344
1345	for (i = 0; i < ARRAY_SIZE(edid_quirk_list); i++) {
1346		quirk = &edid_quirk_list[i];
1347
1348		if (edid_vendor(edid, quirk->vendor) &&
1349		    (EDID_PRODUCT_ID(edid) == quirk->product_id))
1350			return quirk->quirks;
1351	}
1352
1353	return 0;
1354}
1355
1356#define MODE_SIZE(m) ((m)->hdisplay * (m)->vdisplay)
1357#define MODE_REFRESH_DIFF(c,t) (abs((c) - (t)))
1358
1359/**
1360 * edid_fixup_preferred - set preferred modes based on quirk list
1361 * @connector: has mode list to fix up
1362 * @quirks: quirks list
1363 *
1364 * Walk the mode list for @connector, clearing the preferred status
1365 * on existing modes and setting it anew for the right mode ala @quirks.
1366 */
1367static void edid_fixup_preferred(struct drm_connector *connector,
1368				 u32 quirks)
1369{
1370	struct drm_display_mode *t, *cur_mode, *preferred_mode;
1371	int target_refresh = 0;
1372	int cur_vrefresh, preferred_vrefresh;
1373
1374	if (list_empty(&connector->probed_modes))
1375		return;
1376
1377	if (quirks & EDID_QUIRK_PREFER_LARGE_60)
1378		target_refresh = 60;
1379	if (quirks & EDID_QUIRK_PREFER_LARGE_75)
1380		target_refresh = 75;
1381
1382	preferred_mode = list_first_entry(&connector->probed_modes,
1383					  struct drm_display_mode, head);
1384
1385	list_for_each_entry_safe(cur_mode, t, &connector->probed_modes, head) {
1386		cur_mode->type &= ~DRM_MODE_TYPE_PREFERRED;
1387
1388		if (cur_mode == preferred_mode)
1389			continue;
1390
1391		/* Largest mode is preferred */
1392		if (MODE_SIZE(cur_mode) > MODE_SIZE(preferred_mode))
1393			preferred_mode = cur_mode;
1394
1395		cur_vrefresh = cur_mode->vrefresh ?
1396			cur_mode->vrefresh : drm_mode_vrefresh(cur_mode);
1397		preferred_vrefresh = preferred_mode->vrefresh ?
1398			preferred_mode->vrefresh : drm_mode_vrefresh(preferred_mode);
1399		/* At a given size, try to get closest to target refresh */
1400		if ((MODE_SIZE(cur_mode) == MODE_SIZE(preferred_mode)) &&
1401		    MODE_REFRESH_DIFF(cur_vrefresh, target_refresh) <
1402		    MODE_REFRESH_DIFF(preferred_vrefresh, target_refresh)) {
1403			preferred_mode = cur_mode;
1404		}
1405	}
1406
1407	preferred_mode->type |= DRM_MODE_TYPE_PREFERRED;
1408}
1409
1410static bool
1411mode_is_rb(const struct drm_display_mode *mode)
1412{
1413	return (mode->htotal - mode->hdisplay == 160) &&
1414	       (mode->hsync_end - mode->hdisplay == 80) &&
1415	       (mode->hsync_end - mode->hsync_start == 32) &&
1416	       (mode->vsync_start - mode->vdisplay == 3);
1417}
1418
1419/*
1420 * drm_mode_find_dmt - Create a copy of a mode if present in DMT
1421 * @dev: Device to duplicate against
1422 * @hsize: Mode width
1423 * @vsize: Mode height
1424 * @fresh: Mode refresh rate
1425 * @rb: Mode reduced-blanking-ness
1426 *
1427 * Walk the DMT mode list looking for a match for the given parameters.
1428 *
1429 * Return: A newly allocated copy of the mode, or NULL if not found.
1430 */
1431struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
1432					   int hsize, int vsize, int fresh,
1433					   bool rb)
1434{
1435	int i;
1436
1437	for (i = 0; i < ARRAY_SIZE(drm_dmt_modes); i++) {
1438		const struct drm_display_mode *ptr = &drm_dmt_modes[i];
1439		if (hsize != ptr->hdisplay)
1440			continue;
1441		if (vsize != ptr->vdisplay)
1442			continue;
1443		if (fresh != drm_mode_vrefresh(ptr))
1444			continue;
1445		if (rb != mode_is_rb(ptr))
1446			continue;
1447
1448		return drm_mode_duplicate(dev, ptr);
1449	}
1450
1451	return NULL;
1452}
1453EXPORT_SYMBOL(drm_mode_find_dmt);
1454
1455typedef void detailed_cb(struct detailed_timing *timing, void *closure);
1456
1457static void
1458cea_for_each_detailed_block(u8 *ext, detailed_cb *cb, void *closure)
1459{
1460	int i, n = 0;
1461	u8 d = ext[0x02];
1462	u8 *det_base = ext + d;
1463
1464	n = (127 - d) / 18;
1465	for (i = 0; i < n; i++)
1466		cb((struct detailed_timing *)(det_base + 18 * i), closure);
1467}
1468
1469static void
1470vtb_for_each_detailed_block(u8 *ext, detailed_cb *cb, void *closure)
1471{
1472	unsigned int i, n = min((int)ext[0x02], 6);
1473	u8 *det_base = ext + 5;
1474
1475	if (ext[0x01] != 1)
1476		return; /* unknown version */
1477
1478	for (i = 0; i < n; i++)
1479		cb((struct detailed_timing *)(det_base + 18 * i), closure);
1480}
1481
1482static void
1483drm_for_each_detailed_block(u8 *raw_edid, detailed_cb *cb, void *closure)
1484{
1485	int i;
1486	struct edid *edid = (struct edid *)raw_edid;
1487
1488	if (edid == NULL)
1489		return;
1490
1491	for (i = 0; i < EDID_DETAILED_TIMINGS; i++)
1492		cb(&(edid->detailed_timings[i]), closure);
1493
1494	for (i = 1; i <= raw_edid[0x7e]; i++) {
1495		u8 *ext = raw_edid + (i * EDID_LENGTH);
1496		switch (*ext) {
1497		case CEA_EXT:
1498			cea_for_each_detailed_block(ext, cb, closure);
1499			break;
1500		case VTB_EXT:
1501			vtb_for_each_detailed_block(ext, cb, closure);
1502			break;
1503		default:
1504			break;
1505		}
1506	}
1507}
1508
1509static void
1510is_rb(struct detailed_timing *t, void *data)
1511{
1512	u8 *r = (u8 *)t;
1513	if (r[3] == EDID_DETAIL_MONITOR_RANGE)
1514		if (r[15] & 0x10)
1515			*(bool *)data = true;
1516}
1517
1518/* EDID 1.4 defines this explicitly.  For EDID 1.3, we guess, badly. */
1519static bool
1520drm_monitor_supports_rb(struct edid *edid)
1521{
1522	if (edid->revision >= 4) {
1523		bool ret = false;
1524		drm_for_each_detailed_block((u8 *)edid, is_rb, &ret);
1525		return ret;
1526	}
1527
1528	return ((edid->input & DRM_EDID_INPUT_DIGITAL) != 0);
1529}
1530
1531static void
1532find_gtf2(struct detailed_timing *t, void *data)
1533{
1534	u8 *r = (u8 *)t;
1535	if (r[3] == EDID_DETAIL_MONITOR_RANGE && r[10] == 0x02)
1536		*(u8 **)data = r;
1537}
1538
1539/* Secondary GTF curve kicks in above some break frequency */
1540static int
1541drm_gtf2_hbreak(struct edid *edid)
1542{
1543	u8 *r = NULL;
1544	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
1545	return r ? (r[12] * 2) : 0;
1546}
1547
1548static int
1549drm_gtf2_2c(struct edid *edid)
1550{
1551	u8 *r = NULL;
1552	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
1553	return r ? r[13] : 0;
1554}
1555
1556static int
1557drm_gtf2_m(struct edid *edid)
1558{
1559	u8 *r = NULL;
1560	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
1561	return r ? (r[15] << 8) + r[14] : 0;
1562}
1563
1564static int
1565drm_gtf2_k(struct edid *edid)
1566{
1567	u8 *r = NULL;
1568	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
1569	return r ? r[16] : 0;
1570}
1571
1572static int
1573drm_gtf2_2j(struct edid *edid)
1574{
1575	u8 *r = NULL;
1576	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
1577	return r ? r[17] : 0;
1578}
1579
1580/**
1581 * standard_timing_level - get std. timing level(CVT/GTF/DMT)
1582 * @edid: EDID block to scan
1583 */
1584static int standard_timing_level(struct edid *edid)
1585{
1586	if (edid->revision >= 2) {
1587		if (edid->revision >= 4 && (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF))
1588			return LEVEL_CVT;
1589		if (drm_gtf2_hbreak(edid))
1590			return LEVEL_GTF2;
1591		return LEVEL_GTF;
1592	}
1593	return LEVEL_DMT;
1594}
1595
1596/*
1597 * 0 is reserved.  The spec says 0x01 fill for unused timings.  Some old
1598 * monitors fill with ascii space (0x20) instead.
1599 */
1600static int
1601bad_std_timing(u8 a, u8 b)
1602{
1603	return (a == 0x00 && b == 0x00) ||
1604	       (a == 0x01 && b == 0x01) ||
1605	       (a == 0x20 && b == 0x20);
1606}
1607
1608/**
1609 * drm_mode_std - convert standard mode info (width, height, refresh) into mode
1610 * @connector: connector of for the EDID block
1611 * @edid: EDID block to scan
1612 * @t: standard timing params
1613 *
1614 * Take the standard timing params (in this case width, aspect, and refresh)
1615 * and convert them into a real mode using CVT/GTF/DMT.
1616 */
1617static struct drm_display_mode *
1618drm_mode_std(struct drm_connector *connector, struct edid *edid,
1619	     struct std_timing *t)
1620{
1621	struct drm_device *dev = connector->dev;
1622	struct drm_display_mode *m, *mode = NULL;
1623	int hsize, vsize;
1624	int vrefresh_rate;
1625	unsigned aspect_ratio = (t->vfreq_aspect & EDID_TIMING_ASPECT_MASK)
1626		>> EDID_TIMING_ASPECT_SHIFT;
1627	unsigned vfreq = (t->vfreq_aspect & EDID_TIMING_VFREQ_MASK)
1628		>> EDID_TIMING_VFREQ_SHIFT;
1629	int timing_level = standard_timing_level(edid);
1630
1631	if (bad_std_timing(t->hsize, t->vfreq_aspect))
1632		return NULL;
1633
1634	/* According to the EDID spec, the hdisplay = hsize * 8 + 248 */
1635	hsize = t->hsize * 8 + 248;
1636	/* vrefresh_rate = vfreq + 60 */
1637	vrefresh_rate = vfreq + 60;
1638	/* the vdisplay is calculated based on the aspect ratio */
1639	if (aspect_ratio == 0) {
1640		if (edid->revision < 3)
1641			vsize = hsize;
1642		else
1643			vsize = (hsize * 10) / 16;
1644	} else if (aspect_ratio == 1)
1645		vsize = (hsize * 3) / 4;
1646	else if (aspect_ratio == 2)
1647		vsize = (hsize * 4) / 5;
1648	else
1649		vsize = (hsize * 9) / 16;
1650
1651	/* HDTV hack, part 1 */
1652	if (vrefresh_rate == 60 &&
1653	    ((hsize == 1360 && vsize == 765) ||
1654	     (hsize == 1368 && vsize == 769))) {
1655		hsize = 1366;
1656		vsize = 768;
1657	}
1658
1659	/*
1660	 * If this connector already has a mode for this size and refresh
1661	 * rate (because it came from detailed or CVT info), use that
1662	 * instead.  This way we don't have to guess at interlace or
1663	 * reduced blanking.
1664	 */
1665	list_for_each_entry(m, &connector->probed_modes, head)
1666		if (m->hdisplay == hsize && m->vdisplay == vsize &&
1667		    drm_mode_vrefresh(m) == vrefresh_rate)
1668			return NULL;
1669
1670	/* HDTV hack, part 2 */
1671	if (hsize == 1366 && vsize == 768 && vrefresh_rate == 60) {
1672		mode = drm_cvt_mode(dev, 1366, 768, vrefresh_rate, 0, 0,
1673				    false);
1674		mode->hdisplay = 1366;
1675		mode->hsync_start = mode->hsync_start - 1;
1676		mode->hsync_end = mode->hsync_end - 1;
1677		return mode;
1678	}
1679
1680	/* check whether it can be found in default mode table */
1681	if (drm_monitor_supports_rb(edid)) {
1682		mode = drm_mode_find_dmt(dev, hsize, vsize, vrefresh_rate,
1683					 true);
1684		if (mode)
1685			return mode;
1686	}
1687	mode = drm_mode_find_dmt(dev, hsize, vsize, vrefresh_rate, false);
1688	if (mode)
1689		return mode;
1690
1691	/* okay, generate it */
1692	switch (timing_level) {
1693	case LEVEL_DMT:
1694		break;
1695	case LEVEL_GTF:
1696		mode = drm_gtf_mode(dev, hsize, vsize, vrefresh_rate, 0, 0);
1697		break;
1698	case LEVEL_GTF2:
1699		/*
1700		 * This is potentially wrong if there's ever a monitor with
1701		 * more than one ranges section, each claiming a different
1702		 * secondary GTF curve.  Please don't do that.
1703		 */
1704		mode = drm_gtf_mode(dev, hsize, vsize, vrefresh_rate, 0, 0);
1705		if (!mode)
1706			return NULL;
1707		if (drm_mode_hsync(mode) > drm_gtf2_hbreak(edid)) {
1708			drm_mode_destroy(dev, mode);
1709			mode = drm_gtf_mode_complex(dev, hsize, vsize,
1710						    vrefresh_rate, 0, 0,
1711						    drm_gtf2_m(edid),
1712						    drm_gtf2_2c(edid),
1713						    drm_gtf2_k(edid),
1714						    drm_gtf2_2j(edid));
1715		}
1716		break;
1717	case LEVEL_CVT:
1718		mode = drm_cvt_mode(dev, hsize, vsize, vrefresh_rate, 0, 0,
1719				    false);
1720		break;
1721	}
1722	return mode;
1723}
1724
1725/*
1726 * EDID is delightfully ambiguous about how interlaced modes are to be
1727 * encoded.  Our internal representation is of frame height, but some
1728 * HDTV detailed timings are encoded as field height.
1729 *
1730 * The format list here is from CEA, in frame size.  Technically we
1731 * should be checking refresh rate too.  Whatever.
1732 */
1733static void
1734drm_mode_do_interlace_quirk(struct drm_display_mode *mode,
1735			    struct detailed_pixel_timing *pt)
1736{
1737	int i;
1738	static const struct {
1739		int w, h;
1740	} cea_interlaced[] = {
1741		{ 1920, 1080 },
1742		{  720,  480 },
1743		{ 1440,  480 },
1744		{ 2880,  480 },
1745		{  720,  576 },
1746		{ 1440,  576 },
1747		{ 2880,  576 },
1748	};
1749
1750	if (!(pt->misc & DRM_EDID_PT_INTERLACED))
1751		return;
1752
1753	for (i = 0; i < ARRAY_SIZE(cea_interlaced); i++) {
1754		if ((mode->hdisplay == cea_interlaced[i].w) &&
1755		    (mode->vdisplay == cea_interlaced[i].h / 2)) {
1756			mode->vdisplay *= 2;
1757			mode->vsync_start *= 2;
1758			mode->vsync_end *= 2;
1759			mode->vtotal *= 2;
1760			mode->vtotal |= 1;
1761		}
1762	}
1763
1764	mode->flags |= DRM_MODE_FLAG_INTERLACE;
1765}
1766
1767/**
1768 * drm_mode_detailed - create a new mode from an EDID detailed timing section
1769 * @dev: DRM device (needed to create new mode)
1770 * @edid: EDID block
1771 * @timing: EDID detailed timing info
1772 * @quirks: quirks to apply
1773 *
1774 * An EDID detailed timing block contains enough info for us to create and
1775 * return a new struct drm_display_mode.
1776 */
1777static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev,
1778						  struct edid *edid,
1779						  struct detailed_timing *timing,
1780						  u32 quirks)
1781{
1782	struct drm_display_mode *mode;
1783	struct detailed_pixel_timing *pt = &timing->data.pixel_data;
1784	unsigned hactive = (pt->hactive_hblank_hi & 0xf0) << 4 | pt->hactive_lo;
1785	unsigned vactive = (pt->vactive_vblank_hi & 0xf0) << 4 | pt->vactive_lo;
1786	unsigned hblank = (pt->hactive_hblank_hi & 0xf) << 8 | pt->hblank_lo;
1787	unsigned vblank = (pt->vactive_vblank_hi & 0xf) << 8 | pt->vblank_lo;
1788	unsigned hsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc0) << 2 | pt->hsync_offset_lo;
1789	unsigned hsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x30) << 4 | pt->hsync_pulse_width_lo;
1790	unsigned vsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc) << 2 | pt->vsync_offset_pulse_width_lo >> 4;
1791	unsigned vsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x3) << 4 | (pt->vsync_offset_pulse_width_lo & 0xf);
1792
1793	/* ignore tiny modes */
1794	if (hactive < 64 || vactive < 64)
1795		return NULL;
1796
1797	if (pt->misc & DRM_EDID_PT_STEREO) {
1798		DRM_DEBUG_KMS("stereo mode not supported\n");
1799		return NULL;
1800	}
1801	if (!(pt->misc & DRM_EDID_PT_SEPARATE_SYNC)) {
1802		DRM_DEBUG_KMS("composite sync not supported\n");
1803	}
1804
1805	/* it is incorrect if hsync/vsync width is zero */
1806	if (!hsync_pulse_width || !vsync_pulse_width) {
1807		DRM_DEBUG_KMS("Incorrect Detailed timing. "
1808				"Wrong Hsync/Vsync pulse width\n");
1809		return NULL;
1810	}
1811
1812	if (quirks & EDID_QUIRK_FORCE_REDUCED_BLANKING) {
1813		mode = drm_cvt_mode(dev, hactive, vactive, 60, true, false, false);
1814		if (!mode)
1815			return NULL;
1816
1817		goto set_size;
1818	}
1819
1820	mode = drm_mode_create(dev);
1821	if (!mode)
1822		return NULL;
1823
1824	if (quirks & EDID_QUIRK_135_CLOCK_TOO_HIGH)
1825		timing->pixel_clock = cpu_to_le16(1088);
1826
1827	mode->clock = le16_to_cpu(timing->pixel_clock) * 10;
1828
1829	mode->hdisplay = hactive;
1830	mode->hsync_start = mode->hdisplay + hsync_offset;
1831	mode->hsync_end = mode->hsync_start + hsync_pulse_width;
1832	mode->htotal = mode->hdisplay + hblank;
1833
1834	mode->vdisplay = vactive;
1835	mode->vsync_start = mode->vdisplay + vsync_offset;
1836	mode->vsync_end = mode->vsync_start + vsync_pulse_width;
1837	mode->vtotal = mode->vdisplay + vblank;
1838
1839	/* Some EDIDs have bogus h/vtotal values */
1840	if (mode->hsync_end > mode->htotal)
1841		mode->htotal = mode->hsync_end + 1;
1842	if (mode->vsync_end > mode->vtotal)
1843		mode->vtotal = mode->vsync_end + 1;
1844
1845	drm_mode_do_interlace_quirk(mode, pt);
1846
1847	if (quirks & EDID_QUIRK_DETAILED_SYNC_PP) {
1848		pt->misc |= DRM_EDID_PT_HSYNC_POSITIVE | DRM_EDID_PT_VSYNC_POSITIVE;
1849	}
1850
1851	mode->flags |= (pt->misc & DRM_EDID_PT_HSYNC_POSITIVE) ?
1852		DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
1853	mode->flags |= (pt->misc & DRM_EDID_PT_VSYNC_POSITIVE) ?
1854		DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
1855
1856set_size:
1857	mode->width_mm = pt->width_mm_lo | (pt->width_height_mm_hi & 0xf0) << 4;
1858	mode->height_mm = pt->height_mm_lo | (pt->width_height_mm_hi & 0xf) << 8;
1859
1860	if (quirks & EDID_QUIRK_DETAILED_IN_CM) {
1861		mode->width_mm *= 10;
1862		mode->height_mm *= 10;
1863	}
1864
1865	if (quirks & EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE) {
1866		mode->width_mm = edid->width_cm * 10;
1867		mode->height_mm = edid->height_cm * 10;
1868	}
1869
1870	mode->type = DRM_MODE_TYPE_DRIVER;
1871	mode->vrefresh = drm_mode_vrefresh(mode);
1872	drm_mode_set_name(mode);
1873
1874	return mode;
1875}
1876
1877static bool
1878mode_in_hsync_range(const struct drm_display_mode *mode,
1879		    struct edid *edid, u8 *t)
1880{
1881	int hsync, hmin, hmax;
1882
1883	hmin = t[7];
1884	if (edid->revision >= 4)
1885	    hmin += ((t[4] & 0x04) ? 255 : 0);
1886	hmax = t[8];
1887	if (edid->revision >= 4)
1888	    hmax += ((t[4] & 0x08) ? 255 : 0);
1889	hsync = drm_mode_hsync(mode);
1890
1891	return (hsync <= hmax && hsync >= hmin);
1892}
1893
1894static bool
1895mode_in_vsync_range(const struct drm_display_mode *mode,
1896		    struct edid *edid, u8 *t)
1897{
1898	int vsync, vmin, vmax;
1899
1900	vmin = t[5];
1901	if (edid->revision >= 4)
1902	    vmin += ((t[4] & 0x01) ? 255 : 0);
1903	vmax = t[6];
1904	if (edid->revision >= 4)
1905	    vmax += ((t[4] & 0x02) ? 255 : 0);
1906	vsync = drm_mode_vrefresh(mode);
1907
1908	return (vsync <= vmax && vsync >= vmin);
1909}
1910
1911static u32
1912range_pixel_clock(struct edid *edid, u8 *t)
1913{
1914	/* unspecified */
1915	if (t[9] == 0 || t[9] == 255)
1916		return 0;
1917
1918	/* 1.4 with CVT support gives us real precision, yay */
1919	if (edid->revision >= 4 && t[10] == 0x04)
1920		return (t[9] * 10000) - ((t[12] >> 2) * 250);
1921
1922	/* 1.3 is pathetic, so fuzz up a bit */
1923	return t[9] * 10000 + 5001;
1924}
1925
1926static bool
1927mode_in_range(const struct drm_display_mode *mode, struct edid *edid,
1928	      struct detailed_timing *timing)
1929{
1930	u32 max_clock;
1931	u8 *t = (u8 *)timing;
1932
1933	if (!mode_in_hsync_range(mode, edid, t))
1934		return false;
1935
1936	if (!mode_in_vsync_range(mode, edid, t))
1937		return false;
1938
1939	if ((max_clock = range_pixel_clock(edid, t)))
1940		if (mode->clock > max_clock)
1941			return false;
1942
1943	/* 1.4 max horizontal check */
1944	if (edid->revision >= 4 && t[10] == 0x04)
1945		if (t[13] && mode->hdisplay > 8 * (t[13] + (256 * (t[12]&0x3))))
1946			return false;
1947
1948	if (mode_is_rb(mode) && !drm_monitor_supports_rb(edid))
1949		return false;
1950
1951	return true;
1952}
1953
1954static bool valid_inferred_mode(const struct drm_connector *connector,
1955				const struct drm_display_mode *mode)
1956{
1957	struct drm_display_mode *m;
1958	bool ok = false;
1959
1960	list_for_each_entry(m, &connector->probed_modes, head) {
1961		if (mode->hdisplay == m->hdisplay &&
1962		    mode->vdisplay == m->vdisplay &&
1963		    drm_mode_vrefresh(mode) == drm_mode_vrefresh(m))
1964			return false; /* duplicated */
1965		if (mode->hdisplay <= m->hdisplay &&
1966		    mode->vdisplay <= m->vdisplay)
1967			ok = true;
1968	}
1969	return ok;
1970}
1971
1972static int
1973drm_dmt_modes_for_range(struct drm_connector *connector, struct edid *edid,
1974			struct detailed_timing *timing)
1975{
1976	int i, modes = 0;
1977	struct drm_display_mode *newmode;
1978	struct drm_device *dev = connector->dev;
1979
1980	for (i = 0; i < ARRAY_SIZE(drm_dmt_modes); i++) {
1981		if (mode_in_range(drm_dmt_modes + i, edid, timing) &&
1982		    valid_inferred_mode(connector, drm_dmt_modes + i)) {
1983			newmode = drm_mode_duplicate(dev, &drm_dmt_modes[i]);
1984			if (newmode) {
1985				drm_mode_probed_add(connector, newmode);
1986				modes++;
1987			}
1988		}
1989	}
1990
1991	return modes;
1992}
1993
1994/* fix up 1366x768 mode from 1368x768;
1995 * GFT/CVT can't express 1366 width which isn't dividable by 8
1996 */
1997static void fixup_mode_1366x768(struct drm_display_mode *mode)
1998{
1999	if (mode->hdisplay == 1368 && mode->vdisplay == 768) {
2000		mode->hdisplay = 1366;
2001		mode->hsync_start--;
2002		mode->hsync_end--;
2003		drm_mode_set_name(mode);
2004	}
2005}
2006
2007static int
2008drm_gtf_modes_for_range(struct drm_connector *connector, struct edid *edid,
2009			struct detailed_timing *timing)
2010{
2011	int i, modes = 0;
2012	struct drm_display_mode *newmode;
2013	struct drm_device *dev = connector->dev;
2014
2015	for (i = 0; i < ARRAY_SIZE(extra_modes); i++) {
2016		const struct minimode *m = &extra_modes[i];
2017		newmode = drm_gtf_mode(dev, m->w, m->h, m->r, 0, 0);
2018		if (!newmode)
2019			return modes;
2020
2021		fixup_mode_1366x768(newmode);
2022		if (!mode_in_range(newmode, edid, timing) ||
2023		    !valid_inferred_mode(connector, newmode)) {
2024			drm_mode_destroy(dev, newmode);
2025			continue;
2026		}
2027
2028		drm_mode_probed_add(connector, newmode);
2029		modes++;
2030	}
2031
2032	return modes;
2033}
2034
2035static int
2036drm_cvt_modes_for_range(struct drm_connector *connector, struct edid *edid,
2037			struct detailed_timing *timing)
2038{
2039	int i, modes = 0;
2040	struct drm_display_mode *newmode;
2041	struct drm_device *dev = connector->dev;
2042	bool rb = drm_monitor_supports_rb(edid);
2043
2044	for (i = 0; i < ARRAY_SIZE(extra_modes); i++) {
2045		const struct minimode *m = &extra_modes[i];
2046		newmode = drm_cvt_mode(dev, m->w, m->h, m->r, rb, 0, 0);
2047		if (!newmode)
2048			return modes;
2049
2050		fixup_mode_1366x768(newmode);
2051		if (!mode_in_range(newmode, edid, timing) ||
2052		    !valid_inferred_mode(connector, newmode)) {
2053			drm_mode_destroy(dev, newmode);
2054			continue;
2055		}
2056
2057		drm_mode_probed_add(connector, newmode);
2058		modes++;
2059	}
2060
2061	return modes;
2062}
2063
2064static void
2065do_inferred_modes(struct detailed_timing *timing, void *c)
2066{
2067	struct detailed_mode_closure *closure = c;
2068	struct detailed_non_pixel *data = &timing->data.other_data;
2069	struct detailed_data_monitor_range *range = &data->data.range;
2070
2071	if (data->type != EDID_DETAIL_MONITOR_RANGE)
2072		return;
2073
2074	closure->modes += drm_dmt_modes_for_range(closure->connector,
2075						  closure->edid,
2076						  timing);
2077
2078	if (!version_greater(closure->edid, 1, 1))
2079		return; /* GTF not defined yet */
2080
2081	switch (range->flags) {
2082	case 0x02: /* secondary gtf, XXX could do more */
2083	case 0x00: /* default gtf */
2084		closure->modes += drm_gtf_modes_for_range(closure->connector,
2085							  closure->edid,
2086							  timing);
2087		break;
2088	case 0x04: /* cvt, only in 1.4+ */
2089		if (!version_greater(closure->edid, 1, 3))
2090			break;
2091
2092		closure->modes += drm_cvt_modes_for_range(closure->connector,
2093							  closure->edid,
2094							  timing);
2095		break;
2096	case 0x01: /* just the ranges, no formula */
2097	default:
2098		break;
2099	}
2100}
2101
2102static int
2103add_inferred_modes(struct drm_connector *connector, struct edid *edid)
2104{
2105	struct detailed_mode_closure closure = {
2106		.connector = connector,
2107		.edid = edid,
2108	};
2109
2110	if (version_greater(edid, 1, 0))
2111		drm_for_each_detailed_block((u8 *)edid, do_inferred_modes,
2112					    &closure);
2113
2114	return closure.modes;
2115}
2116
2117static int
2118drm_est3_modes(struct drm_connector *connector, struct detailed_timing *timing)
2119{
2120	int i, j, m, modes = 0;
2121	struct drm_display_mode *mode;
2122	u8 *est = ((u8 *)timing) + 5;
2123
2124	for (i = 0; i < 6; i++) {
2125		for (j = 7; j >= 0; j--) {
2126			m = (i * 8) + (7 - j);
2127			if (m >= ARRAY_SIZE(est3_modes))
2128				break;
2129			if (est[i] & (1 << j)) {
2130				mode = drm_mode_find_dmt(connector->dev,
2131							 est3_modes[m].w,
2132							 est3_modes[m].h,
2133							 est3_modes[m].r,
2134							 est3_modes[m].rb);
2135				if (mode) {
2136					drm_mode_probed_add(connector, mode);
2137					modes++;
2138				}
2139			}
2140		}
2141	}
2142
2143	return modes;
2144}
2145
2146static void
2147do_established_modes(struct detailed_timing *timing, void *c)
2148{
2149	struct detailed_mode_closure *closure = c;
2150	struct detailed_non_pixel *data = &timing->data.other_data;
2151
2152	if (data->type == EDID_DETAIL_EST_TIMINGS)
2153		closure->modes += drm_est3_modes(closure->connector, timing);
2154}
2155
2156/**
2157 * add_established_modes - get est. modes from EDID and add them
2158 * @connector: connector to add mode(s) to
2159 * @edid: EDID block to scan
2160 *
2161 * Each EDID block contains a bitmap of the supported "established modes" list
2162 * (defined above).  Tease them out and add them to the global modes list.
2163 */
2164static int
2165add_established_modes(struct drm_connector *connector, struct edid *edid)
2166{
2167	struct drm_device *dev = connector->dev;
2168	unsigned long est_bits = edid->established_timings.t1 |
2169		(edid->established_timings.t2 << 8) |
2170		((edid->established_timings.mfg_rsvd & 0x80) << 9);
2171	int i, modes = 0;
2172	struct detailed_mode_closure closure = {
2173		.connector = connector,
2174		.edid = edid,
2175	};
2176
2177	for (i = 0; i <= EDID_EST_TIMINGS; i++) {
2178		if (est_bits & (1<<i)) {
2179			struct drm_display_mode *newmode;
2180			newmode = drm_mode_duplicate(dev, &edid_est_modes[i]);
2181			if (newmode) {
2182				drm_mode_probed_add(connector, newmode);
2183				modes++;
2184			}
2185		}
2186	}
2187
2188	if (version_greater(edid, 1, 0))
2189		    drm_for_each_detailed_block((u8 *)edid,
2190						do_established_modes, &closure);
2191
2192	return modes + closure.modes;
2193}
2194
2195static void
2196do_standard_modes(struct detailed_timing *timing, void *c)
2197{
2198	struct detailed_mode_closure *closure = c;
2199	struct detailed_non_pixel *data = &timing->data.other_data;
2200	struct drm_connector *connector = closure->connector;
2201	struct edid *edid = closure->edid;
2202
2203	if (data->type == EDID_DETAIL_STD_MODES) {
2204		int i;
2205		for (i = 0; i < 6; i++) {
2206			struct std_timing *std;
2207			struct drm_display_mode *newmode;
2208
2209			std = &data->data.timings[i];
2210			newmode = drm_mode_std(connector, edid, std);
2211			if (newmode) {
2212				drm_mode_probed_add(connector, newmode);
2213				closure->modes++;
2214			}
2215		}
2216	}
2217}
2218
2219/**
2220 * add_standard_modes - get std. modes from EDID and add them
2221 * @connector: connector to add mode(s) to
2222 * @edid: EDID block to scan
2223 *
2224 * Standard modes can be calculated using the appropriate standard (DMT,
2225 * GTF or CVT. Grab them from @edid and add them to the list.
2226 */
2227static int
2228add_standard_modes(struct drm_connector *connector, struct edid *edid)
2229{
2230	int i, modes = 0;
2231	struct detailed_mode_closure closure = {
2232		.connector = connector,
2233		.edid = edid,
2234	};
2235
2236	for (i = 0; i < EDID_STD_TIMINGS; i++) {
2237		struct drm_display_mode *newmode;
2238
2239		newmode = drm_mode_std(connector, edid,
2240				       &edid->standard_timings[i]);
2241		if (newmode) {
2242			drm_mode_probed_add(connector, newmode);
2243			modes++;
2244		}
2245	}
2246
2247	if (version_greater(edid, 1, 0))
2248		drm_for_each_detailed_block((u8 *)edid, do_standard_modes,
2249					    &closure);
2250
2251	/* XXX should also look for standard codes in VTB blocks */
2252
2253	return modes + closure.modes;
2254}
2255
2256static int drm_cvt_modes(struct drm_connector *connector,
2257			 struct detailed_timing *timing)
2258{
2259	int i, j, modes = 0;
2260	struct drm_display_mode *newmode;
2261	struct drm_device *dev = connector->dev;
2262	struct cvt_timing *cvt;
2263	const int rates[] = { 60, 85, 75, 60, 50 };
2264	const u8 empty[3] = { 0, 0, 0 };
2265
2266	for (i = 0; i < 4; i++) {
2267		int uninitialized_var(width), height;
2268		cvt = &(timing->data.other_data.data.cvt[i]);
2269
2270		if (!memcmp(cvt->code, empty, 3))
2271			continue;
2272
2273		height = (cvt->code[0] + ((cvt->code[1] & 0xf0) << 4) + 1) * 2;
2274		switch (cvt->code[1] & 0x0c) {
2275		case 0x00:
2276			width = height * 4 / 3;
2277			break;
2278		case 0x04:
2279			width = height * 16 / 9;
2280			break;
2281		case 0x08:
2282			width = height * 16 / 10;
2283			break;
2284		case 0x0c:
2285			width = height * 15 / 9;
2286			break;
2287		}
2288
2289		for (j = 1; j < 5; j++) {
2290			if (cvt->code[2] & (1 << j)) {
2291				newmode = drm_cvt_mode(dev, width, height,
2292						       rates[j], j == 0,
2293						       false, false);
2294				if (newmode) {
2295					drm_mode_probed_add(connector, newmode);
2296					modes++;
2297				}
2298			}
2299		}
2300	}
2301
2302	return modes;
2303}
2304
2305static void
2306do_cvt_mode(struct detailed_timing *timing, void *c)
2307{
2308	struct detailed_mode_closure *closure = c;
2309	struct detailed_non_pixel *data = &timing->data.other_data;
2310
2311	if (data->type == EDID_DETAIL_CVT_3BYTE)
2312		closure->modes += drm_cvt_modes(closure->connector, timing);
2313}
2314
2315static int
2316add_cvt_modes(struct drm_connector *connector, struct edid *edid)
2317{
2318	struct detailed_mode_closure closure = {
2319		.connector = connector,
2320		.edid = edid,
2321	};
2322
2323	if (version_greater(edid, 1, 2))
2324		drm_for_each_detailed_block((u8 *)edid, do_cvt_mode, &closure);
2325
2326	/* XXX should also look for CVT codes in VTB blocks */
2327
2328	return closure.modes;
2329}
2330
2331static void
2332do_detailed_mode(struct detailed_timing *timing, void *c)
2333{
2334	struct detailed_mode_closure *closure = c;
2335	struct drm_display_mode *newmode;
2336
2337	if (timing->pixel_clock) {
2338		newmode = drm_mode_detailed(closure->connector->dev,
2339					    closure->edid, timing,
2340					    closure->quirks);
2341		if (!newmode)
2342			return;
2343
2344		if (closure->preferred)
2345			newmode->type |= DRM_MODE_TYPE_PREFERRED;
2346
2347		drm_mode_probed_add(closure->connector, newmode);
2348		closure->modes++;
2349		closure->preferred = 0;
2350	}
2351}
2352
2353/*
2354 * add_detailed_modes - Add modes from detailed timings
2355 * @connector: attached connector
2356 * @edid: EDID block to scan
2357 * @quirks: quirks to apply
2358 */
2359static int
2360add_detailed_modes(struct drm_connector *connector, struct edid *edid,
2361		   u32 quirks)
2362{
2363	struct detailed_mode_closure closure = {
2364		.connector = connector,
2365		.edid = edid,
2366		.preferred = 1,
2367		.quirks = quirks,
2368	};
2369
2370	if (closure.preferred && !version_greater(edid, 1, 3))
2371		closure.preferred =
2372		    (edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING);
2373
2374	drm_for_each_detailed_block((u8 *)edid, do_detailed_mode, &closure);
2375
2376	return closure.modes;
2377}
2378
2379#define AUDIO_BLOCK	0x01
2380#define VIDEO_BLOCK     0x02
2381#define VENDOR_BLOCK    0x03
2382#define SPEAKER_BLOCK	0x04
2383#define VIDEO_CAPABILITY_BLOCK	0x07
2384#define EDID_BASIC_AUDIO	(1 << 6)
2385#define EDID_CEA_YCRCB444	(1 << 5)
2386#define EDID_CEA_YCRCB422	(1 << 4)
2387#define EDID_CEA_VCDB_QS	(1 << 6)
2388
2389/*
2390 * Search EDID for CEA extension block.
2391 */
2392static u8 *drm_find_cea_extension(struct edid *edid)
2393{
2394	u8 *edid_ext = NULL;
2395	int i;
2396
2397	/* No EDID or EDID extensions */
2398	if (edid == NULL || edid->extensions == 0)
2399		return NULL;
2400
2401	/* Find CEA extension */
2402	for (i = 0; i < edid->extensions; i++) {
2403		edid_ext = (u8 *)edid + EDID_LENGTH * (i + 1);
2404		if (edid_ext[0] == CEA_EXT)
2405			break;
2406	}
2407
2408	if (i == edid->extensions)
2409		return NULL;
2410
2411	return edid_ext;
2412}
2413
2414/*
2415 * Calculate the alternate clock for the CEA mode
2416 * (60Hz vs. 59.94Hz etc.)
2417 */
2418static unsigned int
2419cea_mode_alternate_clock(const struct drm_display_mode *cea_mode)
2420{
2421	unsigned int clock = cea_mode->clock;
2422
2423	if (cea_mode->vrefresh % 6 != 0)
2424		return clock;
2425
2426	/*
2427	 * edid_cea_modes contains the 59.94Hz
2428	 * variant for 240 and 480 line modes,
2429	 * and the 60Hz variant otherwise.
2430	 */
2431	if (cea_mode->vdisplay == 240 || cea_mode->vdisplay == 480)
2432		clock = clock * 1001 / 1000;
2433	else
2434		clock = DIV_ROUND_UP(clock * 1000, 1001);
2435
2436	return clock;
2437}
2438
2439/**
2440 * drm_match_cea_mode - look for a CEA mode matching given mode
2441 * @to_match: display mode
2442 *
2443 * Return: The CEA Video ID (VIC) of the mode or 0 if it isn't a CEA-861
2444 * mode.
2445 */
2446u8 drm_match_cea_mode(const struct drm_display_mode *to_match)
2447{
2448	u8 mode;
2449
2450	if (!to_match->clock)
2451		return 0;
2452
2453	for (mode = 0; mode < ARRAY_SIZE(edid_cea_modes); mode++) {
2454		const struct drm_display_mode *cea_mode = &edid_cea_modes[mode];
2455		unsigned int clock1, clock2;
2456
2457		/* Check both 60Hz and 59.94Hz */
2458		clock1 = cea_mode->clock;
2459		clock2 = cea_mode_alternate_clock(cea_mode);
2460
2461		if ((KHZ2PICOS(to_match->clock) == KHZ2PICOS(clock1) ||
2462		     KHZ2PICOS(to_match->clock) == KHZ2PICOS(clock2)) &&
2463		    drm_mode_equal_no_clocks_no_stereo(to_match, cea_mode))
2464			return mode + 1;
2465	}
2466	return 0;
2467}
2468EXPORT_SYMBOL(drm_match_cea_mode);
2469
2470/**
2471 * drm_get_cea_aspect_ratio - get the picture aspect ratio corresponding to
2472 * the input VIC from the CEA mode list
2473 * @video_code: ID given to each of the CEA modes
2474 *
2475 * Returns picture aspect ratio
2476 */
2477enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code)
2478{
2479	/* return picture aspect ratio for video_code - 1 to access the
2480	 * right array element
2481	*/
2482	return edid_cea_modes[video_code-1].picture_aspect_ratio;
2483}
2484EXPORT_SYMBOL(drm_get_cea_aspect_ratio);
2485
2486/*
2487 * Calculate the alternate clock for HDMI modes (those from the HDMI vendor
2488 * specific block).
2489 *
2490 * It's almost like cea_mode_alternate_clock(), we just need to add an
2491 * exception for the VIC 4 mode (4096x2160@24Hz): no alternate clock for this
2492 * one.
2493 */
2494static unsigned int
2495hdmi_mode_alternate_clock(const struct drm_display_mode *hdmi_mode)
2496{
2497	if (hdmi_mode->vdisplay == 4096 && hdmi_mode->hdisplay == 2160)
2498		return hdmi_mode->clock;
2499
2500	return cea_mode_alternate_clock(hdmi_mode);
2501}
2502
2503/*
2504 * drm_match_hdmi_mode - look for a HDMI mode matching given mode
2505 * @to_match: display mode
2506 *
2507 * An HDMI mode is one defined in the HDMI vendor specific block.
2508 *
2509 * Returns the HDMI Video ID (VIC) of the mode or 0 if it isn't one.
2510 */
2511static u8 drm_match_hdmi_mode(const struct drm_display_mode *to_match)
2512{
2513	u8 mode;
2514
2515	if (!to_match->clock)
2516		return 0;
2517
2518	for (mode = 0; mode < ARRAY_SIZE(edid_4k_modes); mode++) {
2519		const struct drm_display_mode *hdmi_mode = &edid_4k_modes[mode];
2520		unsigned int clock1, clock2;
2521
2522		/* Make sure to also match alternate clocks */
2523		clock1 = hdmi_mode->clock;
2524		clock2 = hdmi_mode_alternate_clock(hdmi_mode);
2525
2526		if ((KHZ2PICOS(to_match->clock) == KHZ2PICOS(clock1) ||
2527		     KHZ2PICOS(to_match->clock) == KHZ2PICOS(clock2)) &&
2528		    drm_mode_equal_no_clocks_no_stereo(to_match, hdmi_mode))
2529			return mode + 1;
2530	}
2531	return 0;
2532}
2533
2534static int
2535add_alternate_cea_modes(struct drm_connector *connector, struct edid *edid)
2536{
2537	struct drm_device *dev = connector->dev;
2538	struct drm_display_mode *mode, *tmp;
2539	LIST_HEAD(list);
2540	int modes = 0;
2541
2542	/* Don't add CEA modes if the CEA extension block is missing */
2543	if (!drm_find_cea_extension(edid))
2544		return 0;
2545
2546	/*
2547	 * Go through all probed modes and create a new mode
2548	 * with the alternate clock for certain CEA modes.
2549	 */
2550	list_for_each_entry(mode, &connector->probed_modes, head) {
2551		const struct drm_display_mode *cea_mode = NULL;
2552		struct drm_display_mode *newmode;
2553		u8 mode_idx = drm_match_cea_mode(mode) - 1;
2554		unsigned int clock1, clock2;
2555
2556		if (mode_idx < ARRAY_SIZE(edid_cea_modes)) {
2557			cea_mode = &edid_cea_modes[mode_idx];
2558			clock2 = cea_mode_alternate_clock(cea_mode);
2559		} else {
2560			mode_idx = drm_match_hdmi_mode(mode) - 1;
2561			if (mode_idx < ARRAY_SIZE(edid_4k_modes)) {
2562				cea_mode = &edid_4k_modes[mode_idx];
2563				clock2 = hdmi_mode_alternate_clock(cea_mode);
2564			}
2565		}
2566
2567		if (!cea_mode)
2568			continue;
2569
2570		clock1 = cea_mode->clock;
2571
2572		if (clock1 == clock2)
2573			continue;
2574
2575		if (mode->clock != clock1 && mode->clock != clock2)
2576			continue;
2577
2578		newmode = drm_mode_duplicate(dev, cea_mode);
2579		if (!newmode)
2580			continue;
2581
2582		/* Carry over the stereo flags */
2583		newmode->flags |= mode->flags & DRM_MODE_FLAG_3D_MASK;
2584
2585		/*
2586		 * The current mode could be either variant. Make
2587		 * sure to pick the "other" clock for the new mode.
2588		 */
2589		if (mode->clock != clock1)
2590			newmode->clock = clock1;
2591		else
2592			newmode->clock = clock2;
2593
2594		list_add_tail(&newmode->head, &list);
2595	}
2596
2597	list_for_each_entry_safe(mode, tmp, &list, head) {
2598		list_del(&mode->head);
2599		drm_mode_probed_add(connector, mode);
2600		modes++;
2601	}
2602
2603	return modes;
2604}
2605
2606static struct drm_display_mode *
2607drm_display_mode_from_vic_index(struct drm_connector *connector,
2608				const u8 *video_db, u8 video_len,
2609				u8 video_index)
2610{
2611	struct drm_device *dev = connector->dev;
2612	struct drm_display_mode *newmode;
2613	u8 cea_mode;
2614
2615	if (video_db == NULL || video_index >= video_len)
2616		return NULL;
2617
2618	/* CEA modes are numbered 1..127 */
2619	cea_mode = (video_db[video_index] & 127) - 1;
2620	if (cea_mode >= ARRAY_SIZE(edid_cea_modes))
2621		return NULL;
2622
2623	newmode = drm_mode_duplicate(dev, &edid_cea_modes[cea_mode]);
2624	if (!newmode)
2625		return NULL;
2626
2627	newmode->vrefresh = 0;
2628
2629	return newmode;
2630}
2631
2632static int
2633do_cea_modes(struct drm_connector *connector, const u8 *db, u8 len)
2634{
2635	int i, modes = 0;
2636
2637	for (i = 0; i < len; i++) {
2638		struct drm_display_mode *mode;
2639		mode = drm_display_mode_from_vic_index(connector, db, len, i);
2640		if (mode) {
2641			drm_mode_probed_add(connector, mode);
2642			modes++;
2643		}
2644	}
2645
2646	return modes;
2647}
2648
2649struct stereo_mandatory_mode {
2650	int width, height, vrefresh;
2651	unsigned int flags;
2652};
2653
2654static const struct stereo_mandatory_mode stereo_mandatory_modes[] = {
2655	{ 1920, 1080, 24, DRM_MODE_FLAG_3D_TOP_AND_BOTTOM },
2656	{ 1920, 1080, 24, DRM_MODE_FLAG_3D_FRAME_PACKING },
2657	{ 1920, 1080, 50,
2658	  DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF },
2659	{ 1920, 1080, 60,
2660	  DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF },
2661	{ 1280, 720,  50, DRM_MODE_FLAG_3D_TOP_AND_BOTTOM },
2662	{ 1280, 720,  50, DRM_MODE_FLAG_3D_FRAME_PACKING },
2663	{ 1280, 720,  60, DRM_MODE_FLAG_3D_TOP_AND_BOTTOM },
2664	{ 1280, 720,  60, DRM_MODE_FLAG_3D_FRAME_PACKING }
2665};
2666
2667static bool
2668stereo_match_mandatory(const struct drm_display_mode *mode,
2669		       const struct stereo_mandatory_mode *stereo_mode)
2670{
2671	unsigned int interlaced = mode->flags & DRM_MODE_FLAG_INTERLACE;
2672
2673	return mode->hdisplay == stereo_mode->width &&
2674	       mode->vdisplay == stereo_mode->height &&
2675	       interlaced == (stereo_mode->flags & DRM_MODE_FLAG_INTERLACE) &&
2676	       drm_mode_vrefresh(mode) == stereo_mode->vrefresh;
2677}
2678
2679static int add_hdmi_mandatory_stereo_modes(struct drm_connector *connector)
2680{
2681	struct drm_device *dev = connector->dev;
2682	const struct drm_display_mode *mode;
2683	struct list_head stereo_modes;
2684	int modes = 0, i;
2685
2686	INIT_LIST_HEAD(&stereo_modes);
2687
2688	list_for_each_entry(mode, &connector->probed_modes, head) {
2689		for (i = 0; i < ARRAY_SIZE(stereo_mandatory_modes); i++) {
2690			const struct stereo_mandatory_mode *mandatory;
2691			struct drm_display_mode *new_mode;
2692
2693			if (!stereo_match_mandatory(mode,
2694						    &stereo_mandatory_modes[i]))
2695				continue;
2696
2697			mandatory = &stereo_mandatory_modes[i];
2698			new_mode = drm_mode_duplicate(dev, mode);
2699			if (!new_mode)
2700				continue;
2701
2702			new_mode->flags |= mandatory->flags;
2703			list_add_tail(&new_mode->head, &stereo_modes);
2704			modes++;
2705		}
2706	}
2707
2708	list_splice_tail(&stereo_modes, &connector->probed_modes);
2709
2710	return modes;
2711}
2712
2713static int add_hdmi_mode(struct drm_connector *connector, u8 vic)
2714{
2715	struct drm_device *dev = connector->dev;
2716	struct drm_display_mode *newmode;
2717
2718	vic--; /* VICs start at 1 */
2719	if (vic >= ARRAY_SIZE(edid_4k_modes)) {
2720		DRM_ERROR("Unknown HDMI VIC: %d\n", vic);
2721		return 0;
2722	}
2723
2724	newmode = drm_mode_duplicate(dev, &edid_4k_modes[vic]);
2725	if (!newmode)
2726		return 0;
2727
2728	drm_mode_probed_add(connector, newmode);
2729
2730	return 1;
2731}
2732
2733static int add_3d_struct_modes(struct drm_connector *connector, u16 structure,
2734			       const u8 *video_db, u8 video_len, u8 video_index)
2735{
2736	struct drm_display_mode *newmode;
2737	int modes = 0;
2738
2739	if (structure & (1 << 0)) {
2740		newmode = drm_display_mode_from_vic_index(connector, video_db,
2741							  video_len,
2742							  video_index);
2743		if (newmode) {
2744			newmode->flags |= DRM_MODE_FLAG_3D_FRAME_PACKING;
2745			drm_mode_probed_add(connector, newmode);
2746			modes++;
2747		}
2748	}
2749	if (structure & (1 << 6)) {
2750		newmode = drm_display_mode_from_vic_index(connector, video_db,
2751							  video_len,
2752							  video_index);
2753		if (newmode) {
2754			newmode->flags |= DRM_MODE_FLAG_3D_TOP_AND_BOTTOM;
2755			drm_mode_probed_add(connector, newmode);
2756			modes++;
2757		}
2758	}
2759	if (structure & (1 << 8)) {
2760		newmode = drm_display_mode_from_vic_index(connector, video_db,
2761							  video_len,
2762							  video_index);
2763		if (newmode) {
2764			newmode->flags |= DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF;
2765			drm_mode_probed_add(connector, newmode);
2766			modes++;
2767		}
2768	}
2769
2770	return modes;
2771}
2772
2773/*
2774 * do_hdmi_vsdb_modes - Parse the HDMI Vendor Specific data block
2775 * @connector: connector corresponding to the HDMI sink
2776 * @db: start of the CEA vendor specific block
2777 * @len: length of the CEA block payload, ie. one can access up to db[len]
2778 *
2779 * Parses the HDMI VSDB looking for modes to add to @connector. This function
2780 * also adds the stereo 3d modes when applicable.
2781 */
2782static int
2783do_hdmi_vsdb_modes(struct drm_connector *connector, const u8 *db, u8 len,
2784		   const u8 *video_db, u8 video_len)
2785{
2786	int modes = 0, offset = 0, i, multi_present = 0, multi_len;
2787	u8 vic_len, hdmi_3d_len = 0;
2788	u16 mask;
2789	u16 structure_all;
2790
2791	if (len < 8)
2792		goto out;
2793
2794	/* no HDMI_Video_Present */
2795	if (!(db[8] & (1 << 5)))
2796		goto out;
2797
2798	/* Latency_Fields_Present */
2799	if (db[8] & (1 << 7))
2800		offset += 2;
2801
2802	/* I_Latency_Fields_Present */
2803	if (db[8] & (1 << 6))
2804		offset += 2;
2805
2806	/* the declared length is not long enough for the 2 first bytes
2807	 * of additional video format capabilities */
2808	if (len < (8 + offset + 2))
2809		goto out;
2810
2811	/* 3D_Present */
2812	offset++;
2813	if (db[8 + offset] & (1 << 7)) {
2814		modes += add_hdmi_mandatory_stereo_modes(connector);
2815
2816		/* 3D_Multi_present */
2817		multi_present = (db[8 + offset] & 0x60) >> 5;
2818	}
2819
2820	offset++;
2821	vic_len = db[8 + offset] >> 5;
2822	hdmi_3d_len = db[8 + offset] & 0x1f;
2823
2824	for (i = 0; i < vic_len && len >= (9 + offset + i); i++) {
2825		u8 vic;
2826
2827		vic = db[9 + offset + i];
2828		modes += add_hdmi_mode(connector, vic);
2829	}
2830	offset += 1 + vic_len;
2831
2832	if (multi_present == 1)
2833		multi_len = 2;
2834	else if (multi_present == 2)
2835		multi_len = 4;
2836	else
2837		multi_len = 0;
2838
2839	if (len < (8 + offset + hdmi_3d_len - 1))
2840		goto out;
2841
2842	if (hdmi_3d_len < multi_len)
2843		goto out;
2844
2845	if (multi_present == 1 || multi_present == 2) {
2846		/* 3D_Structure_ALL */
2847		structure_all = (db[8 + offset] << 8) | db[9 + offset];
2848
2849		/* check if 3D_MASK is present */
2850		if (multi_present == 2)
2851			mask = (db[10 + offset] << 8) | db[11 + offset];
2852		else
2853			mask = 0xffff;
2854
2855		for (i = 0; i < 16; i++) {
2856			if (mask & (1 << i))
2857				modes += add_3d_struct_modes(connector,
2858						structure_all,
2859						video_db,
2860						video_len, i);
2861		}
2862	}
2863
2864	offset += multi_len;
2865
2866	for (i = 0; i < (hdmi_3d_len - multi_len); i++) {
2867		int vic_index;
2868		struct drm_display_mode *newmode = NULL;
2869		unsigned int newflag = 0;
2870		bool detail_present;
2871
2872		detail_present = ((db[8 + offset + i] & 0x0f) > 7);
2873
2874		if (detail_present && (i + 1 == hdmi_3d_len - multi_len))
2875			break;
2876
2877		/* 2D_VIC_order_X */
2878		vic_index = db[8 + offset + i] >> 4;
2879
2880		/* 3D_Structure_X */
2881		switch (db[8 + offset + i] & 0x0f) {
2882		case 0:
2883			newflag = DRM_MODE_FLAG_3D_FRAME_PACKING;
2884			break;
2885		case 6:
2886			newflag = DRM_MODE_FLAG_3D_TOP_AND_BOTTOM;
2887			break;
2888		case 8:
2889			/* 3D_Detail_X */
2890			if ((db[9 + offset + i] >> 4) == 1)
2891				newflag = DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF;
2892			break;
2893		}
2894
2895		if (newflag != 0) {
2896			newmode = drm_display_mode_from_vic_index(connector,
2897								  video_db,
2898								  video_len,
2899								  vic_index);
2900
2901			if (newmode) {
2902				newmode->flags |= newflag;
2903				drm_mode_probed_add(connector, newmode);
2904				modes++;
2905			}
2906		}
2907
2908		if (detail_present)
2909			i++;
2910	}
2911
2912out:
2913	return modes;
2914}
2915
2916static int
2917cea_db_payload_len(const u8 *db)
2918{
2919	return db[0] & 0x1f;
2920}
2921
2922static int
2923cea_db_tag(const u8 *db)
2924{
2925	return db[0] >> 5;
2926}
2927
2928static int
2929cea_revision(const u8 *cea)
2930{
2931	return cea[1];
2932}
2933
2934static int
2935cea_db_offsets(const u8 *cea, int *start, int *end)
2936{
2937	/* Data block offset in CEA extension block */
2938	*start = 4;
2939	*end = cea[2];
2940	if (*end == 0)
2941		*end = 127;
2942	if (*end < 4 || *end > 127)
2943		return -ERANGE;
2944	return 0;
2945}
2946
2947static bool cea_db_is_hdmi_vsdb(const u8 *db)
2948{
2949	int hdmi_id;
2950
2951	if (cea_db_tag(db) != VENDOR_BLOCK)
2952		return false;
2953
2954	if (cea_db_payload_len(db) < 5)
2955		return false;
2956
2957	hdmi_id = db[1] | (db[2] << 8) | (db[3] << 16);
2958
2959	return hdmi_id == HDMI_IEEE_OUI;
2960}
2961
2962#define for_each_cea_db(cea, i, start, end) \
2963	for ((i) = (start); (i) < (end) && (i) + cea_db_payload_len(&(cea)[(i)]) < (end); (i) += cea_db_payload_len(&(cea)[(i)]) + 1)
2964
2965static int
2966add_cea_modes(struct drm_connector *connector, struct edid *edid)
2967{
2968	const u8 *cea = drm_find_cea_extension(edid);
2969	const u8 *db, *hdmi = NULL, *video = NULL;
2970	u8 dbl, hdmi_len, video_len = 0;
2971	int modes = 0;
2972
2973	if (cea && cea_revision(cea) >= 3) {
2974		int i, start, end;
2975
2976		if (cea_db_offsets(cea, &start, &end))
2977			return 0;
2978
2979		for_each_cea_db(cea, i, start, end) {
2980			db = &cea[i];
2981			dbl = cea_db_payload_len(db);
2982
2983			if (cea_db_tag(db) == VIDEO_BLOCK) {
2984				video = db + 1;
2985				video_len = dbl;
2986				modes += do_cea_modes(connector, video, dbl);
2987			}
2988			else if (cea_db_is_hdmi_vsdb(db)) {
2989				hdmi = db;
2990				hdmi_len = dbl;
2991			}
2992		}
2993	}
2994
2995	/*
2996	 * We parse the HDMI VSDB after having added the cea modes as we will
2997	 * be patching their flags when the sink supports stereo 3D.
2998	 */
2999	if (hdmi)
3000		modes += do_hdmi_vsdb_modes(connector, hdmi, hdmi_len, video,
3001					    video_len);
3002
3003	return modes;
3004}
3005
3006static void
3007parse_hdmi_vsdb(struct drm_connector *connector, const u8 *db)
3008{
3009	u8 len = cea_db_payload_len(db);
3010
3011	if (len >= 6) {
3012		connector->eld[5] |= (db[6] >> 7) << 1;  /* Supports_AI */
3013		connector->dvi_dual = db[6] & 1;
3014	}
3015	if (len >= 7)
3016		connector->max_tmds_clock = db[7] * 5;
3017	if (len >= 8) {
3018		connector->latency_present[0] = db[8] >> 7;
3019		connector->latency_present[1] = (db[8] >> 6) & 1;
3020	}
3021	if (len >= 9)
3022		connector->video_latency[0] = db[9];
3023	if (len >= 10)
3024		connector->audio_latency[0] = db[10];
3025	if (len >= 11)
3026		connector->video_latency[1] = db[11];
3027	if (len >= 12)
3028		connector->audio_latency[1] = db[12];
3029
3030	DRM_DEBUG_KMS("HDMI: DVI dual %d, "
3031		    "max TMDS clock %d, "
3032		    "latency present %d %d, "
3033		    "video latency %d %d, "
3034		    "audio latency %d %d\n",
3035		    connector->dvi_dual,
3036		    connector->max_tmds_clock,
3037	      (int) connector->latency_present[0],
3038	      (int) connector->latency_present[1],
3039		    connector->video_latency[0],
3040		    connector->video_latency[1],
3041		    connector->audio_latency[0],
3042		    connector->audio_latency[1]);
3043}
3044
3045static void
3046monitor_name(struct detailed_timing *t, void *data)
3047{
3048	if (t->data.other_data.type == EDID_DETAIL_MONITOR_NAME)
3049		*(u8 **)data = t->data.other_data.data.str.str;
3050}
3051
3052/**
3053 * drm_edid_to_eld - build ELD from EDID
3054 * @connector: connector corresponding to the HDMI/DP sink
3055 * @edid: EDID to parse
3056 *
3057 * Fill the ELD (EDID-Like Data) buffer for passing to the audio driver. The
3058 * Conn_Type, HDCP and Port_ID ELD fields are left for the graphics driver to
3059 * fill in.
3060 */
3061void drm_edid_to_eld(struct drm_connector *connector, struct edid *edid)
3062{
3063	uint8_t *eld = connector->eld;
3064	u8 *cea;
3065	u8 *name;
3066	u8 *db;
3067	int sad_count = 0;
3068	int mnl;
3069	int dbl;
3070
3071	memset(eld, 0, sizeof(connector->eld));
3072
3073	cea = drm_find_cea_extension(edid);
3074	if (!cea) {
3075		DRM_DEBUG_KMS("ELD: no CEA Extension found\n");
3076		return;
3077	}
3078
3079	name = NULL;
3080	drm_for_each_detailed_block((u8 *)edid, monitor_name, &name);
3081	for (mnl = 0; name && mnl < 13; mnl++) {
3082		if (name[mnl] == 0x0a)
3083			break;
3084		eld[20 + mnl] = name[mnl];
3085	}
3086	eld[4] = (cea[1] << 5) | mnl;
3087	DRM_DEBUG_KMS("ELD monitor %s\n", eld + 20);
3088
3089	eld[0] = 2 << 3;		/* ELD version: 2 */
3090
3091	eld[16] = edid->mfg_id[0];
3092	eld[17] = edid->mfg_id[1];
3093	eld[18] = edid->prod_code[0];
3094	eld[19] = edid->prod_code[1];
3095
3096	if (cea_revision(cea) >= 3) {
3097		int i, start, end;
3098
3099		if (cea_db_offsets(cea, &start, &end)) {
3100			start = 0;
3101			end = 0;
3102		}
3103
3104		for_each_cea_db(cea, i, start, end) {
3105			db = &cea[i];
3106			dbl = cea_db_payload_len(db);
3107
3108			switch (cea_db_tag(db)) {
3109			case AUDIO_BLOCK:
3110				/* Audio Data Block, contains SADs */
3111				sad_count = dbl / 3;
3112				if (dbl >= 1)
3113					memcpy(eld + 20 + mnl, &db[1], dbl);
3114				break;
3115			case SPEAKER_BLOCK:
3116				/* Speaker Allocation Data Block */
3117				if (dbl >= 1)
3118					eld[7] = db[1];
3119				break;
3120			case VENDOR_BLOCK:
3121				/* HDMI Vendor-Specific Data Block */
3122				if (cea_db_is_hdmi_vsdb(db))
3123					parse_hdmi_vsdb(connector, db);
3124				break;
3125			default:
3126				break;
3127			}
3128		}
3129	}
3130	eld[5] |= sad_count << 4;
3131	eld[2] = (20 + mnl + sad_count * 3 + 3) / 4;
3132
3133	DRM_DEBUG_KMS("ELD size %d, SAD count %d\n", (int)eld[2], sad_count);
3134}
3135EXPORT_SYMBOL(drm_edid_to_eld);
3136
3137/**
3138 * drm_edid_to_sad - extracts SADs from EDID
3139 * @edid: EDID to parse
3140 * @sads: pointer that will be set to the extracted SADs
3141 *
3142 * Looks for CEA EDID block and extracts SADs (Short Audio Descriptors) from it.
3143 *
3144 * Note: The returned pointer needs to be freed using kfree().
3145 *
3146 * Return: The number of found SADs or negative number on error.
3147 */
3148int drm_edid_to_sad(struct edid *edid, struct cea_sad **sads)
3149{
3150	int count = 0;
3151	int i, start, end, dbl;
3152	u8 *cea;
3153
3154	cea = drm_find_cea_extension(edid);
3155	if (!cea) {
3156		DRM_DEBUG_KMS("SAD: no CEA Extension found\n");
3157		return -ENOENT;
3158	}
3159
3160	if (cea_revision(cea) < 3) {
3161		DRM_DEBUG_KMS("SAD: wrong CEA revision\n");
3162		return -ENOTSUPP;
3163	}
3164
3165	if (cea_db_offsets(cea, &start, &end)) {
3166		DRM_DEBUG_KMS("SAD: invalid data block offsets\n");
3167		return -EPROTO;
3168	}
3169
3170	for_each_cea_db(cea, i, start, end) {
3171		u8 *db = &cea[i];
3172
3173		if (cea_db_tag(db) == AUDIO_BLOCK) {
3174			int j;
3175			dbl = cea_db_payload_len(db);
3176
3177			count = dbl / 3; /* SAD is 3B */
3178			*sads = kcalloc(count, sizeof(**sads), GFP_KERNEL);
3179			if (!*sads)
3180				return -ENOMEM;
3181			for (j = 0; j < count; j++) {
3182				u8 *sad = &db[1 + j * 3];
3183
3184				(*sads)[j].format = (sad[0] & 0x78) >> 3;
3185				(*sads)[j].channels = sad[0] & 0x7;
3186				(*sads)[j].freq = sad[1] & 0x7F;
3187				(*sads)[j].byte2 = sad[2];
3188			}
3189			break;
3190		}
3191	}
3192
3193	return count;
3194}
3195EXPORT_SYMBOL(drm_edid_to_sad);
3196
3197/**
3198 * drm_edid_to_speaker_allocation - extracts Speaker Allocation Data Blocks from EDID
3199 * @edid: EDID to parse
3200 * @sadb: pointer to the speaker block
3201 *
3202 * Looks for CEA EDID block and extracts the Speaker Allocation Data Block from it.
3203 *
3204 * Note: The returned pointer needs to be freed using kfree().
3205 *
3206 * Return: The number of found Speaker Allocation Blocks or negative number on
3207 * error.
3208 */
3209int drm_edid_to_speaker_allocation(struct edid *edid, u8 **sadb)
3210{
3211	int count = 0;
3212	int i, start, end, dbl;
3213	const u8 *cea;
3214
3215	cea = drm_find_cea_extension(edid);
3216	if (!cea) {
3217		DRM_DEBUG_KMS("SAD: no CEA Extension found\n");
3218		return -ENOENT;
3219	}
3220
3221	if (cea_revision(cea) < 3) {
3222		DRM_DEBUG_KMS("SAD: wrong CEA revision\n");
3223		return -ENOTSUPP;
3224	}
3225
3226	if (cea_db_offsets(cea, &start, &end)) {
3227		DRM_DEBUG_KMS("SAD: invalid data block offsets\n");
3228		return -EPROTO;
3229	}
3230
3231	for_each_cea_db(cea, i, start, end) {
3232		const u8 *db = &cea[i];
3233
3234		if (cea_db_tag(db) == SPEAKER_BLOCK) {
3235			dbl = cea_db_payload_len(db);
3236
3237			/* Speaker Allocation Data Block */
3238			if (dbl == 3) {
3239				*sadb = kmemdup(&db[1], dbl, GFP_KERNEL);
3240				if (!*sadb)
3241					return -ENOMEM;
3242				count = dbl;
3243				break;
3244			}
3245		}
3246	}
3247
3248	return count;
3249}
3250EXPORT_SYMBOL(drm_edid_to_speaker_allocation);
3251
3252/**
3253 * drm_av_sync_delay - compute the HDMI/DP sink audio-video sync delay
3254 * @connector: connector associated with the HDMI/DP sink
3255 * @mode: the display mode
3256 *
3257 * Return: The HDMI/DP sink's audio-video sync delay in milliseconds or 0 if
3258 * the sink doesn't support audio or video.
3259 */
3260int drm_av_sync_delay(struct drm_connector *connector,
3261		      struct drm_display_mode *mode)
3262{
3263	int i = !!(mode->flags & DRM_MODE_FLAG_INTERLACE);
3264	int a, v;
3265
3266	if (!connector->latency_present[0])
3267		return 0;
3268	if (!connector->latency_present[1])
3269		i = 0;
3270
3271	a = connector->audio_latency[i];
3272	v = connector->video_latency[i];
3273
3274	/*
3275	 * HDMI/DP sink doesn't support audio or video?
3276	 */
3277	if (a == 255 || v == 255)
3278		return 0;
3279
3280	/*
3281	 * Convert raw EDID values to millisecond.
3282	 * Treat unknown latency as 0ms.
3283	 */
3284	if (a)
3285		a = min(2 * (a - 1), 500);
3286	if (v)
3287		v = min(2 * (v - 1), 500);
3288
3289	return max(v - a, 0);
3290}
3291EXPORT_SYMBOL(drm_av_sync_delay);
3292
3293/**
3294 * drm_select_eld - select one ELD from multiple HDMI/DP sinks
3295 * @encoder: the encoder just changed display mode
3296 * @mode: the adjusted display mode
3297 *
3298 * It's possible for one encoder to be associated with multiple HDMI/DP sinks.
3299 * The policy is now hard coded to simply use the first HDMI/DP sink's ELD.
3300 *
3301 * Return: The connector associated with the first HDMI/DP sink that has ELD
3302 * attached to it.
3303 */
3304struct drm_connector *drm_select_eld(struct drm_encoder *encoder,
3305				     struct drm_display_mode *mode)
3306{
3307	struct drm_connector *connector;
3308	struct drm_device *dev = encoder->dev;
3309
3310	WARN_ON(!mutex_is_locked(&dev->mode_config.mutex));
3311	WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex));
3312
3313	list_for_each_entry(connector, &dev->mode_config.connector_list, head)
3314		if (connector->encoder == encoder && connector->eld[0])
3315			return connector;
3316
3317	return NULL;
3318}
3319EXPORT_SYMBOL(drm_select_eld);
3320
3321/**
3322 * drm_detect_hdmi_monitor - detect whether monitor is HDMI
3323 * @edid: monitor EDID information
3324 *
3325 * Parse the CEA extension according to CEA-861-B.
3326 *
3327 * Return: True if the monitor is HDMI, false if not or unknown.
3328 */
3329bool drm_detect_hdmi_monitor(struct edid *edid)
3330{
3331	u8 *edid_ext;
3332	int i;
3333	int start_offset, end_offset;
3334
3335	edid_ext = drm_find_cea_extension(edid);
3336	if (!edid_ext)
3337		return false;
3338
3339	if (cea_db_offsets(edid_ext, &start_offset, &end_offset))
3340		return false;
3341
3342	/*
3343	 * Because HDMI identifier is in Vendor Specific Block,
3344	 * search it from all data blocks of CEA extension.
3345	 */
3346	for_each_cea_db(edid_ext, i, start_offset, end_offset) {
3347		if (cea_db_is_hdmi_vsdb(&edid_ext[i]))
3348			return true;
3349	}
3350
3351	return false;
3352}
3353EXPORT_SYMBOL(drm_detect_hdmi_monitor);
3354
3355/**
3356 * drm_detect_monitor_audio - check monitor audio capability
3357 * @edid: EDID block to scan
3358 *
3359 * Monitor should have CEA extension block.
3360 * If monitor has 'basic audio', but no CEA audio blocks, it's 'basic
3361 * audio' only. If there is any audio extension block and supported
3362 * audio format, assume at least 'basic audio' support, even if 'basic
3363 * audio' is not defined in EDID.
3364 *
3365 * Return: True if the monitor supports audio, false otherwise.
3366 */
3367bool drm_detect_monitor_audio(struct edid *edid)
3368{
3369	u8 *edid_ext;
3370	int i, j;
3371	bool has_audio = false;
3372	int start_offset, end_offset;
3373
3374	edid_ext = drm_find_cea_extension(edid);
3375	if (!edid_ext)
3376		goto end;
3377
3378	has_audio = ((edid_ext[3] & EDID_BASIC_AUDIO) != 0);
3379
3380	if (has_audio) {
3381		DRM_DEBUG_KMS("Monitor has basic audio support\n");
3382		goto end;
3383	}
3384
3385	if (cea_db_offsets(edid_ext, &start_offset, &end_offset))
3386		goto end;
3387
3388	for_each_cea_db(edid_ext, i, start_offset, end_offset) {
3389		if (cea_db_tag(&edid_ext[i]) == AUDIO_BLOCK) {
3390			has_audio = true;
3391			for (j = 1; j < cea_db_payload_len(&edid_ext[i]) + 1; j += 3)
3392				DRM_DEBUG_KMS("CEA audio format %d\n",
3393					      (edid_ext[i + j] >> 3) & 0xf);
3394			goto end;
3395		}
3396	}
3397end:
3398	return has_audio;
3399}
3400EXPORT_SYMBOL(drm_detect_monitor_audio);
3401
3402/**
3403 * drm_rgb_quant_range_selectable - is RGB quantization range selectable?
3404 * @edid: EDID block to scan
3405 *
3406 * Check whether the monitor reports the RGB quantization range selection
3407 * as supported. The AVI infoframe can then be used to inform the monitor
3408 * which quantization range (full or limited) is used.
3409 *
3410 * Return: True if the RGB quantization range is selectable, false otherwise.
3411 */
3412bool drm_rgb_quant_range_selectable(struct edid *edid)
3413{
3414	u8 *edid_ext;
3415	int i, start, end;
3416
3417	edid_ext = drm_find_cea_extension(edid);
3418	if (!edid_ext)
3419		return false;
3420
3421	if (cea_db_offsets(edid_ext, &start, &end))
3422		return false;
3423
3424	for_each_cea_db(edid_ext, i, start, end) {
3425		if (cea_db_tag(&edid_ext[i]) == VIDEO_CAPABILITY_BLOCK &&
3426		    cea_db_payload_len(&edid_ext[i]) == 2) {
3427			DRM_DEBUG_KMS("CEA VCDB 0x%02x\n", edid_ext[i + 2]);
3428			return edid_ext[i + 2] & EDID_CEA_VCDB_QS;
3429		}
3430	}
3431
3432	return false;
3433}
3434EXPORT_SYMBOL(drm_rgb_quant_range_selectable);
3435
3436/**
3437 * drm_assign_hdmi_deep_color_info - detect whether monitor supports
3438 * hdmi deep color modes and update drm_display_info if so.
3439 * @edid: monitor EDID information
3440 * @info: Updated with maximum supported deep color bpc and color format
3441 *        if deep color supported.
3442 * @connector: DRM connector, used only for debug output
3443 *
3444 * Parse the CEA extension according to CEA-861-B.
3445 * Return true if HDMI deep color supported, false if not or unknown.
3446 */
3447static bool drm_assign_hdmi_deep_color_info(struct edid *edid,
3448                                            struct drm_display_info *info,
3449                                            struct drm_connector *connector)
3450{
3451	u8 *edid_ext, *hdmi;
3452	int i;
3453	int start_offset, end_offset;
3454	unsigned int dc_bpc = 0;
3455
3456	edid_ext = drm_find_cea_extension(edid);
3457	if (!edid_ext)
3458		return false;
3459
3460	if (cea_db_offsets(edid_ext, &start_offset, &end_offset))
3461		return false;
3462
3463	/*
3464	 * Because HDMI identifier is in Vendor Specific Block,
3465	 * search it from all data blocks of CEA extension.
3466	 */
3467	for_each_cea_db(edid_ext, i, start_offset, end_offset) {
3468		if (cea_db_is_hdmi_vsdb(&edid_ext[i])) {
3469			/* HDMI supports at least 8 bpc */
3470			info->bpc = 8;
3471
3472			hdmi = &edid_ext[i];
3473			if (cea_db_payload_len(hdmi) < 6)
3474				return false;
3475
3476			if (hdmi[6] & DRM_EDID_HDMI_DC_30) {
3477				dc_bpc = 10;
3478				info->edid_hdmi_dc_modes |= DRM_EDID_HDMI_DC_30;
3479				DRM_DEBUG("%s: HDMI sink does deep color 30.\n",
3480						  connector->name);
3481			}
3482
3483			if (hdmi[6] & DRM_EDID_HDMI_DC_36) {
3484				dc_bpc = 12;
3485				info->edid_hdmi_dc_modes |= DRM_EDID_HDMI_DC_36;
3486				DRM_DEBUG("%s: HDMI sink does deep color 36.\n",
3487						  connector->name);
3488			}
3489
3490			if (hdmi[6] & DRM_EDID_HDMI_DC_48) {
3491				dc_bpc = 16;
3492				info->edid_hdmi_dc_modes |= DRM_EDID_HDMI_DC_48;
3493				DRM_DEBUG("%s: HDMI sink does deep color 48.\n",
3494						  connector->name);
3495			}
3496
3497			if (dc_bpc > 0) {
3498				DRM_DEBUG("%s: Assigning HDMI sink color depth as %d bpc.\n",
3499						  connector->name, dc_bpc);
3500				info->bpc = dc_bpc;
3501
3502				/*
3503				 * Deep color support mandates RGB444 support for all video
3504				 * modes and forbids YCRCB422 support for all video modes per
3505				 * HDMI 1.3 spec.
3506				 */
3507				info->color_formats = DRM_COLOR_FORMAT_RGB444;
3508
3509				/* YCRCB444 is optional according to spec. */
3510				if (hdmi[6] & DRM_EDID_HDMI_DC_Y444) {
3511					info->color_formats |= DRM_COLOR_FORMAT_YCRCB444;
3512					DRM_DEBUG("%s: HDMI sink does YCRCB444 in deep color.\n",
3513							  connector->name);
3514				}
3515
3516				/*
3517				 * Spec says that if any deep color mode is supported at all,
3518				 * then deep color 36 bit must be supported.
3519				 */
3520				if (!(hdmi[6] & DRM_EDID_HDMI_DC_36)) {
3521					DRM_DEBUG("%s: HDMI sink should do DC_36, but does not!\n",
3522							  connector->name);
3523				}
3524
3525				return true;
3526			}
3527			else {
3528				DRM_DEBUG("%s: No deep color support on this HDMI sink.\n",
3529						  connector->name);
3530			}
3531		}
3532	}
3533
3534	return false;
3535}
3536
3537/**
3538 * drm_add_display_info - pull display info out if present
3539 * @edid: EDID data
3540 * @info: display info (attached to connector)
3541 * @connector: connector whose edid is used to build display info
3542 *
3543 * Grab any available display info and stuff it into the drm_display_info
3544 * structure that's part of the connector.  Useful for tracking bpp and
3545 * color spaces.
3546 */
3547static void drm_add_display_info(struct edid *edid,
3548                                 struct drm_display_info *info,
3549                                 struct drm_connector *connector)
3550{
3551	u8 *edid_ext;
3552
3553	info->width_mm = edid->width_cm * 10;
3554	info->height_mm = edid->height_cm * 10;
3555
3556	/* driver figures it out in this case */
3557	info->bpc = 0;
3558	info->color_formats = 0;
3559
3560	if (edid->revision < 3)
3561		return;
3562
3563	if (!(edid->input & DRM_EDID_INPUT_DIGITAL))
3564		return;
3565
3566	/* Get data from CEA blocks if present */
3567	edid_ext = drm_find_cea_extension(edid);
3568	if (edid_ext) {
3569		info->cea_rev = edid_ext[1];
3570
3571		/* The existence of a CEA block should imply RGB support */
3572		info->color_formats = DRM_COLOR_FORMAT_RGB444;
3573		if (edid_ext[3] & EDID_CEA_YCRCB444)
3574			info->color_formats |= DRM_COLOR_FORMAT_YCRCB444;
3575		if (edid_ext[3] & EDID_CEA_YCRCB422)
3576			info->color_formats |= DRM_COLOR_FORMAT_YCRCB422;
3577	}
3578
3579	/* HDMI deep color modes supported? Assign to info, if so */
3580	drm_assign_hdmi_deep_color_info(edid, info, connector);
3581
3582	/* Only defined for 1.4 with digital displays */
3583	if (edid->revision < 4)
3584		return;
3585
3586	switch (edid->input & DRM_EDID_DIGITAL_DEPTH_MASK) {
3587	case DRM_EDID_DIGITAL_DEPTH_6:
3588		info->bpc = 6;
3589		break;
3590	case DRM_EDID_DIGITAL_DEPTH_8:
3591		info->bpc = 8;
3592		break;
3593	case DRM_EDID_DIGITAL_DEPTH_10:
3594		info->bpc = 10;
3595		break;
3596	case DRM_EDID_DIGITAL_DEPTH_12:
3597		info->bpc = 12;
3598		break;
3599	case DRM_EDID_DIGITAL_DEPTH_14:
3600		info->bpc = 14;
3601		break;
3602	case DRM_EDID_DIGITAL_DEPTH_16:
3603		info->bpc = 16;
3604		break;
3605	case DRM_EDID_DIGITAL_DEPTH_UNDEF:
3606	default:
3607		info->bpc = 0;
3608		break;
3609	}
3610
3611	DRM_DEBUG("%s: Assigning EDID-1.4 digital sink color depth as %d bpc.\n",
3612			  connector->name, info->bpc);
3613
3614	info->color_formats |= DRM_COLOR_FORMAT_RGB444;
3615	if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB444)
3616		info->color_formats |= DRM_COLOR_FORMAT_YCRCB444;
3617	if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB422)
3618		info->color_formats |= DRM_COLOR_FORMAT_YCRCB422;
3619}
3620
3621/**
3622 * drm_add_edid_modes - add modes from EDID data, if available
3623 * @connector: connector we're probing
3624 * @edid: EDID data
3625 *
3626 * Add the specified modes to the connector's mode list.
3627 *
3628 * Return: The number of modes added or 0 if we couldn't find any.
3629 */
3630int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)
3631{
3632	int num_modes = 0;
3633	u32 quirks;
3634
3635	if (edid == NULL) {
3636		return 0;
3637	}
3638	if (!drm_edid_is_valid(edid)) {
3639		dev_warn(connector->dev->dev, "%s: EDID invalid.\n",
3640			 connector->name);
3641		return 0;
3642	}
3643
3644	quirks = edid_get_quirks(edid);
3645
3646	/*
3647	 * EDID spec says modes should be preferred in this order:
3648	 * - preferred detailed mode
3649	 * - other detailed modes from base block
3650	 * - detailed modes from extension blocks
3651	 * - CVT 3-byte code modes
3652	 * - standard timing codes
3653	 * - established timing codes
3654	 * - modes inferred from GTF or CVT range information
3655	 *
3656	 * We get this pretty much right.
3657	 *
3658	 * XXX order for additional mode types in extension blocks?
3659	 */
3660	num_modes += add_detailed_modes(connector, edid, quirks);
3661	num_modes += add_cvt_modes(connector, edid);
3662	num_modes += add_standard_modes(connector, edid);
3663	num_modes += add_established_modes(connector, edid);
3664	if (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF)
3665		num_modes += add_inferred_modes(connector, edid);
3666	num_modes += add_cea_modes(connector, edid);
3667	num_modes += add_alternate_cea_modes(connector, edid);
3668
3669	if (quirks & (EDID_QUIRK_PREFER_LARGE_60 | EDID_QUIRK_PREFER_LARGE_75))
3670		edid_fixup_preferred(connector, quirks);
3671
3672	drm_add_display_info(edid, &connector->display_info, connector);
3673
3674	if (quirks & EDID_QUIRK_FORCE_8BPC)
3675		connector->display_info.bpc = 8;
3676
3677	if (quirks & EDID_QUIRK_FORCE_12BPC)
3678		connector->display_info.bpc = 12;
3679
3680	return num_modes;
3681}
3682EXPORT_SYMBOL(drm_add_edid_modes);
3683
3684/**
3685 * drm_add_modes_noedid - add modes for the connectors without EDID
3686 * @connector: connector we're probing
3687 * @hdisplay: the horizontal display limit
3688 * @vdisplay: the vertical display limit
3689 *
3690 * Add the specified modes to the connector's mode list. Only when the
3691 * hdisplay/vdisplay is not beyond the given limit, it will be added.
3692 *
3693 * Return: The number of modes added or 0 if we couldn't find any.
3694 */
3695int drm_add_modes_noedid(struct drm_connector *connector,
3696			int hdisplay, int vdisplay)
3697{
3698	int i, count, num_modes = 0;
3699	struct drm_display_mode *mode;
3700	struct drm_device *dev = connector->dev;
3701
3702	count = sizeof(drm_dmt_modes) / sizeof(struct drm_display_mode);
3703	if (hdisplay < 0)
3704		hdisplay = 0;
3705	if (vdisplay < 0)
3706		vdisplay = 0;
3707
3708	for (i = 0; i < count; i++) {
3709		const struct drm_display_mode *ptr = &drm_dmt_modes[i];
3710		if (hdisplay && vdisplay) {
3711			/*
3712			 * Only when two are valid, they will be used to check
3713			 * whether the mode should be added to the mode list of
3714			 * the connector.
3715			 */
3716			if (ptr->hdisplay > hdisplay ||
3717					ptr->vdisplay > vdisplay)
3718				continue;
3719		}
3720		if (drm_mode_vrefresh(ptr) > 61)
3721			continue;
3722		mode = drm_mode_duplicate(dev, ptr);
3723		if (mode) {
3724			drm_mode_probed_add(connector, mode);
3725			num_modes++;
3726		}
3727	}
3728	return num_modes;
3729}
3730EXPORT_SYMBOL(drm_add_modes_noedid);
3731
3732/**
3733 * drm_set_preferred_mode - Sets the preferred mode of a connector
3734 * @connector: connector whose mode list should be processed
3735 * @hpref: horizontal resolution of preferred mode
3736 * @vpref: vertical resolution of preferred mode
3737 *
3738 * Marks a mode as preferred if it matches the resolution specified by @hpref
3739 * and @vpref.
3740 */
3741void drm_set_preferred_mode(struct drm_connector *connector,
3742			   int hpref, int vpref)
3743{
3744	struct drm_display_mode *mode;
3745
3746	list_for_each_entry(mode, &connector->probed_modes, head) {
3747		if (mode->hdisplay == hpref &&
3748		    mode->vdisplay == vpref)
3749			mode->type |= DRM_MODE_TYPE_PREFERRED;
3750	}
3751}
3752EXPORT_SYMBOL(drm_set_preferred_mode);
3753
3754/**
3755 * drm_hdmi_avi_infoframe_from_display_mode() - fill an HDMI AVI infoframe with
3756 *                                              data from a DRM display mode
3757 * @frame: HDMI AVI infoframe
3758 * @mode: DRM display mode
3759 *
3760 * Return: 0 on success or a negative error code on failure.
3761 */
3762int
3763drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,
3764					 const struct drm_display_mode *mode)
3765{
3766	int err;
3767
3768	if (!frame || !mode)
3769		return -EINVAL;
3770
3771	err = hdmi_avi_infoframe_init(frame);
3772	if (err < 0)
3773		return err;
3774
3775	if (mode->flags & DRM_MODE_FLAG_DBLCLK)
3776		frame->pixel_repeat = 1;
3777
3778	frame->video_code = drm_match_cea_mode(mode);
3779
3780	frame->picture_aspect = HDMI_PICTURE_ASPECT_NONE;
3781
3782	/*
3783	 * Populate picture aspect ratio from either
3784	 * user input (if specified) or from the CEA mode list.
3785	 */
3786	if (mode->picture_aspect_ratio == HDMI_PICTURE_ASPECT_4_3 ||
3787		mode->picture_aspect_ratio == HDMI_PICTURE_ASPECT_16_9)
3788		frame->picture_aspect = mode->picture_aspect_ratio;
3789	else if (frame->video_code > 0)
3790		frame->picture_aspect = drm_get_cea_aspect_ratio(
3791						frame->video_code);
3792
3793	frame->active_aspect = HDMI_ACTIVE_ASPECT_PICTURE;
3794	frame->scan_mode = HDMI_SCAN_MODE_UNDERSCAN;
3795
3796	return 0;
3797}
3798EXPORT_SYMBOL(drm_hdmi_avi_infoframe_from_display_mode);
3799
3800static enum hdmi_3d_structure
3801s3d_structure_from_display_mode(const struct drm_display_mode *mode)
3802{
3803	u32 layout = mode->flags & DRM_MODE_FLAG_3D_MASK;
3804
3805	switch (layout) {
3806	case DRM_MODE_FLAG_3D_FRAME_PACKING:
3807		return HDMI_3D_STRUCTURE_FRAME_PACKING;
3808	case DRM_MODE_FLAG_3D_FIELD_ALTERNATIVE:
3809		return HDMI_3D_STRUCTURE_FIELD_ALTERNATIVE;
3810	case DRM_MODE_FLAG_3D_LINE_ALTERNATIVE:
3811		return HDMI_3D_STRUCTURE_LINE_ALTERNATIVE;
3812	case DRM_MODE_FLAG_3D_SIDE_BY_SIDE_FULL:
3813		return HDMI_3D_STRUCTURE_SIDE_BY_SIDE_FULL;
3814	case DRM_MODE_FLAG_3D_L_DEPTH:
3815		return HDMI_3D_STRUCTURE_L_DEPTH;
3816	case DRM_MODE_FLAG_3D_L_DEPTH_GFX_GFX_DEPTH:
3817		return HDMI_3D_STRUCTURE_L_DEPTH_GFX_GFX_DEPTH;
3818	case DRM_MODE_FLAG_3D_TOP_AND_BOTTOM:
3819		return HDMI_3D_STRUCTURE_TOP_AND_BOTTOM;
3820	case DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF:
3821		return HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF;
3822	default:
3823		return HDMI_3D_STRUCTURE_INVALID;
3824	}
3825}
3826
3827/**
3828 * drm_hdmi_vendor_infoframe_from_display_mode() - fill an HDMI infoframe with
3829 * data from a DRM display mode
3830 * @frame: HDMI vendor infoframe
3831 * @mode: DRM display mode
3832 *
3833 * Note that there's is a need to send HDMI vendor infoframes only when using a
3834 * 4k or stereoscopic 3D mode. So when giving any other mode as input this
3835 * function will return -EINVAL, error that can be safely ignored.
3836 *
3837 * Return: 0 on success or a negative error code on failure.
3838 */
3839int
3840drm_hdmi_vendor_infoframe_from_display_mode(struct hdmi_vendor_infoframe *frame,
3841					    const struct drm_display_mode *mode)
3842{
3843	int err;
3844	u32 s3d_flags;
3845	u8 vic;
3846
3847	if (!frame || !mode)
3848		return -EINVAL;
3849
3850	vic = drm_match_hdmi_mode(mode);
3851	s3d_flags = mode->flags & DRM_MODE_FLAG_3D_MASK;
3852
3853	if (!vic && !s3d_flags)
3854		return -EINVAL;
3855
3856	if (vic && s3d_flags)
3857		return -EINVAL;
3858
3859	err = hdmi_vendor_infoframe_init(frame);
3860	if (err < 0)
3861		return err;
3862
3863	if (vic)
3864		frame->vic = vic;
3865	else
3866		frame->s3d_struct = s3d_structure_from_display_mode(mode);
3867
3868	return 0;
3869}
3870EXPORT_SYMBOL(drm_hdmi_vendor_infoframe_from_display_mode);
3871