1 /*
2 * Copyright (c) 2006 Luc Verhaegen (quirks list)
3 * Copyright (c) 2007-2008 Intel Corporation
4 * Jesse Barnes <jesse.barnes@intel.com>
5 * Copyright 2010 Red Hat, Inc.
6 *
7 * DDC probing routines (drm_ddc_read & drm_do_probe_ddc_edid) originally from
8 * FB layer.
9 * Copyright (C) 2006 Dennis Munsie <dmunsie@cecropia.com>
10 *
11 * Permission is hereby granted, free of charge, to any person obtaining a
12 * copy of this software and associated documentation files (the "Software"),
13 * to deal in the Software without restriction, including without limitation
14 * the rights to use, copy, modify, merge, publish, distribute, sub license,
15 * and/or sell copies of the Software, and to permit persons to whom the
16 * Software is furnished to do so, subject to the following conditions:
17 *
18 * The above copyright notice and this permission notice (including the
19 * next paragraph) shall be included in all copies or substantial portions
20 * of the Software.
21 *
22 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
23 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
24 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
25 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
26 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
27 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
28 * DEALINGS IN THE SOFTWARE.
29 */
30
31 #include <linux/bitfield.h>
32 #include <linux/byteorder/generic.h>
33 #include <linux/cec.h>
34 #include <linux/hdmi.h>
35 #include <linux/i2c.h>
36 #include <linux/kernel.h>
37 #include <linux/module.h>
38 #include <linux/pci.h>
39 #include <linux/seq_buf.h>
40 #include <linux/slab.h>
41 #include <linux/vga_switcheroo.h>
42
43 #include <drm/drm_drv.h>
44 #include <drm/drm_edid.h>
45 #include <drm/drm_eld.h>
46 #include <drm/drm_encoder.h>
47 #include <drm/drm_print.h>
48
49 #include "drm_crtc_internal.h"
50 #include "drm_displayid_internal.h"
51 #include "drm_internal.h"
52
oui(u8 first,u8 second,u8 third)53 static int oui(u8 first, u8 second, u8 third)
54 {
55 return (first << 16) | (second << 8) | third;
56 }
57
58 #define EDID_EST_TIMINGS 16
59 #define EDID_STD_TIMINGS 8
60 #define EDID_DETAILED_TIMINGS 4
61
62 /*
63 * EDID blocks out in the wild have a variety of bugs, try to collect
64 * them here (note that userspace may work around broken monitors first,
65 * but fixes should make their way here so that the kernel "just works"
66 * on as many displays as possible).
67 */
68
69 /* First detailed mode wrong, use largest 60Hz mode */
70 #define EDID_QUIRK_PREFER_LARGE_60 (1 << 0)
71 /* Reported 135MHz pixel clock is too high, needs adjustment */
72 #define EDID_QUIRK_135_CLOCK_TOO_HIGH (1 << 1)
73 /* Prefer the largest mode at 75 Hz */
74 #define EDID_QUIRK_PREFER_LARGE_75 (1 << 2)
75 /* Detail timing is in cm not mm */
76 #define EDID_QUIRK_DETAILED_IN_CM (1 << 3)
77 /* Detailed timing descriptors have bogus size values, so just take the
78 * maximum size and use that.
79 */
80 #define EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE (1 << 4)
81 /* use +hsync +vsync for detailed mode */
82 #define EDID_QUIRK_DETAILED_SYNC_PP (1 << 6)
83 /* Force reduced-blanking timings for detailed modes */
84 #define EDID_QUIRK_FORCE_REDUCED_BLANKING (1 << 7)
85 /* Force 8bpc */
86 #define EDID_QUIRK_FORCE_8BPC (1 << 8)
87 /* Force 12bpc */
88 #define EDID_QUIRK_FORCE_12BPC (1 << 9)
89 /* Force 6bpc */
90 #define EDID_QUIRK_FORCE_6BPC (1 << 10)
91 /* Force 10bpc */
92 #define EDID_QUIRK_FORCE_10BPC (1 << 11)
93 /* Non desktop display (i.e. HMD) */
94 #define EDID_QUIRK_NON_DESKTOP (1 << 12)
95 /* Cap the DSC target bitrate to 15bpp */
96 #define EDID_QUIRK_CAP_DSC_15BPP (1 << 13)
97
98 #define MICROSOFT_IEEE_OUI 0xca125c
99
100 struct detailed_mode_closure {
101 struct drm_connector *connector;
102 const struct drm_edid *drm_edid;
103 bool preferred;
104 int modes;
105 };
106
107 struct drm_edid_match_closure {
108 const struct drm_edid_ident *ident;
109 bool matched;
110 };
111
112 #define LEVEL_DMT 0
113 #define LEVEL_GTF 1
114 #define LEVEL_GTF2 2
115 #define LEVEL_CVT 3
116
117 #define EDID_QUIRK(vend_chr_0, vend_chr_1, vend_chr_2, product_id, _quirks) \
118 { \
119 .ident = { \
120 .panel_id = drm_edid_encode_panel_id(vend_chr_0, vend_chr_1, \
121 vend_chr_2, product_id), \
122 }, \
123 .quirks = _quirks \
124 }
125
126 static const struct edid_quirk {
127 const struct drm_edid_ident ident;
128 u32 quirks;
129 } edid_quirk_list[] = {
130 /* Acer AL1706 */
131 EDID_QUIRK('A', 'C', 'R', 44358, EDID_QUIRK_PREFER_LARGE_60),
132 /* Acer F51 */
133 EDID_QUIRK('A', 'P', 'I', 0x7602, EDID_QUIRK_PREFER_LARGE_60),
134
135 /* AEO model 0 reports 8 bpc, but is a 6 bpc panel */
136 EDID_QUIRK('A', 'E', 'O', 0, EDID_QUIRK_FORCE_6BPC),
137
138 /* BenQ GW2765 */
139 EDID_QUIRK('B', 'N', 'Q', 0x78d6, EDID_QUIRK_FORCE_8BPC),
140
141 /* BOE model on HP Pavilion 15-n233sl reports 8 bpc, but is a 6 bpc panel */
142 EDID_QUIRK('B', 'O', 'E', 0x78b, EDID_QUIRK_FORCE_6BPC),
143
144 /* CPT panel of Asus UX303LA reports 8 bpc, but is a 6 bpc panel */
145 EDID_QUIRK('C', 'P', 'T', 0x17df, EDID_QUIRK_FORCE_6BPC),
146
147 /* SDC panel of Lenovo B50-80 reports 8 bpc, but is a 6 bpc panel */
148 EDID_QUIRK('S', 'D', 'C', 0x3652, EDID_QUIRK_FORCE_6BPC),
149
150 /* BOE model 0x0771 reports 8 bpc, but is a 6 bpc panel */
151 EDID_QUIRK('B', 'O', 'E', 0x0771, EDID_QUIRK_FORCE_6BPC),
152
153 /* Belinea 10 15 55 */
154 EDID_QUIRK('M', 'A', 'X', 1516, EDID_QUIRK_PREFER_LARGE_60),
155 EDID_QUIRK('M', 'A', 'X', 0x77e, EDID_QUIRK_PREFER_LARGE_60),
156
157 /* Envision Peripherals, Inc. EN-7100e */
158 EDID_QUIRK('E', 'P', 'I', 59264, EDID_QUIRK_135_CLOCK_TOO_HIGH),
159 /* Envision EN2028 */
160 EDID_QUIRK('E', 'P', 'I', 8232, EDID_QUIRK_PREFER_LARGE_60),
161
162 /* Funai Electronics PM36B */
163 EDID_QUIRK('F', 'C', 'M', 13600, EDID_QUIRK_PREFER_LARGE_75 |
164 EDID_QUIRK_DETAILED_IN_CM),
165
166 /* LG 27GP950 */
167 EDID_QUIRK('G', 'S', 'M', 0x5bbf, EDID_QUIRK_CAP_DSC_15BPP),
168
169 /* LG 27GN950 */
170 EDID_QUIRK('G', 'S', 'M', 0x5b9a, EDID_QUIRK_CAP_DSC_15BPP),
171
172 /* LGD panel of HP zBook 17 G2, eDP 10 bpc, but reports unknown bpc */
173 EDID_QUIRK('L', 'G', 'D', 764, EDID_QUIRK_FORCE_10BPC),
174
175 /* LG Philips LCD LP154W01-A5 */
176 EDID_QUIRK('L', 'P', 'L', 0, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE),
177 EDID_QUIRK('L', 'P', 'L', 0x2a00, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE),
178
179 /* Samsung SyncMaster 205BW. Note: irony */
180 EDID_QUIRK('S', 'A', 'M', 541, EDID_QUIRK_DETAILED_SYNC_PP),
181 /* Samsung SyncMaster 22[5-6]BW */
182 EDID_QUIRK('S', 'A', 'M', 596, EDID_QUIRK_PREFER_LARGE_60),
183 EDID_QUIRK('S', 'A', 'M', 638, EDID_QUIRK_PREFER_LARGE_60),
184
185 /* Sony PVM-2541A does up to 12 bpc, but only reports max 8 bpc */
186 EDID_QUIRK('S', 'N', 'Y', 0x2541, EDID_QUIRK_FORCE_12BPC),
187
188 /* ViewSonic VA2026w */
189 EDID_QUIRK('V', 'S', 'C', 5020, EDID_QUIRK_FORCE_REDUCED_BLANKING),
190
191 /* Medion MD 30217 PG */
192 EDID_QUIRK('M', 'E', 'D', 0x7b8, EDID_QUIRK_PREFER_LARGE_75),
193
194 /* Lenovo G50 */
195 EDID_QUIRK('S', 'D', 'C', 18514, EDID_QUIRK_FORCE_6BPC),
196
197 /* Panel in Samsung NP700G7A-S01PL notebook reports 6bpc */
198 EDID_QUIRK('S', 'E', 'C', 0xd033, EDID_QUIRK_FORCE_8BPC),
199
200 /* Rotel RSX-1058 forwards sink's EDID but only does HDMI 1.1*/
201 EDID_QUIRK('E', 'T', 'R', 13896, EDID_QUIRK_FORCE_8BPC),
202
203 /* Valve Index Headset */
204 EDID_QUIRK('V', 'L', 'V', 0x91a8, EDID_QUIRK_NON_DESKTOP),
205 EDID_QUIRK('V', 'L', 'V', 0x91b0, EDID_QUIRK_NON_DESKTOP),
206 EDID_QUIRK('V', 'L', 'V', 0x91b1, EDID_QUIRK_NON_DESKTOP),
207 EDID_QUIRK('V', 'L', 'V', 0x91b2, EDID_QUIRK_NON_DESKTOP),
208 EDID_QUIRK('V', 'L', 'V', 0x91b3, EDID_QUIRK_NON_DESKTOP),
209 EDID_QUIRK('V', 'L', 'V', 0x91b4, EDID_QUIRK_NON_DESKTOP),
210 EDID_QUIRK('V', 'L', 'V', 0x91b5, EDID_QUIRK_NON_DESKTOP),
211 EDID_QUIRK('V', 'L', 'V', 0x91b6, EDID_QUIRK_NON_DESKTOP),
212 EDID_QUIRK('V', 'L', 'V', 0x91b7, EDID_QUIRK_NON_DESKTOP),
213 EDID_QUIRK('V', 'L', 'V', 0x91b8, EDID_QUIRK_NON_DESKTOP),
214 EDID_QUIRK('V', 'L', 'V', 0x91b9, EDID_QUIRK_NON_DESKTOP),
215 EDID_QUIRK('V', 'L', 'V', 0x91ba, EDID_QUIRK_NON_DESKTOP),
216 EDID_QUIRK('V', 'L', 'V', 0x91bb, EDID_QUIRK_NON_DESKTOP),
217 EDID_QUIRK('V', 'L', 'V', 0x91bc, EDID_QUIRK_NON_DESKTOP),
218 EDID_QUIRK('V', 'L', 'V', 0x91bd, EDID_QUIRK_NON_DESKTOP),
219 EDID_QUIRK('V', 'L', 'V', 0x91be, EDID_QUIRK_NON_DESKTOP),
220 EDID_QUIRK('V', 'L', 'V', 0x91bf, EDID_QUIRK_NON_DESKTOP),
221
222 /* HTC Vive and Vive Pro VR Headsets */
223 EDID_QUIRK('H', 'V', 'R', 0xaa01, EDID_QUIRK_NON_DESKTOP),
224 EDID_QUIRK('H', 'V', 'R', 0xaa02, EDID_QUIRK_NON_DESKTOP),
225
226 /* Oculus Rift DK1, DK2, CV1 and Rift S VR Headsets */
227 EDID_QUIRK('O', 'V', 'R', 0x0001, EDID_QUIRK_NON_DESKTOP),
228 EDID_QUIRK('O', 'V', 'R', 0x0003, EDID_QUIRK_NON_DESKTOP),
229 EDID_QUIRK('O', 'V', 'R', 0x0004, EDID_QUIRK_NON_DESKTOP),
230 EDID_QUIRK('O', 'V', 'R', 0x0012, EDID_QUIRK_NON_DESKTOP),
231
232 /* Windows Mixed Reality Headsets */
233 EDID_QUIRK('A', 'C', 'R', 0x7fce, EDID_QUIRK_NON_DESKTOP),
234 EDID_QUIRK('L', 'E', 'N', 0x0408, EDID_QUIRK_NON_DESKTOP),
235 EDID_QUIRK('F', 'U', 'J', 0x1970, EDID_QUIRK_NON_DESKTOP),
236 EDID_QUIRK('D', 'E', 'L', 0x7fce, EDID_QUIRK_NON_DESKTOP),
237 EDID_QUIRK('S', 'E', 'C', 0x144a, EDID_QUIRK_NON_DESKTOP),
238 EDID_QUIRK('A', 'U', 'S', 0xc102, EDID_QUIRK_NON_DESKTOP),
239
240 /* Sony PlayStation VR Headset */
241 EDID_QUIRK('S', 'N', 'Y', 0x0704, EDID_QUIRK_NON_DESKTOP),
242
243 /* Sensics VR Headsets */
244 EDID_QUIRK('S', 'E', 'N', 0x1019, EDID_QUIRK_NON_DESKTOP),
245
246 /* OSVR HDK and HDK2 VR Headsets */
247 EDID_QUIRK('S', 'V', 'R', 0x1019, EDID_QUIRK_NON_DESKTOP),
248 EDID_QUIRK('A', 'U', 'O', 0x1111, EDID_QUIRK_NON_DESKTOP),
249 };
250
251 /*
252 * Autogenerated from the DMT spec.
253 * This table is copied from xfree86/modes/xf86EdidModes.c.
254 */
255 static const struct drm_display_mode drm_dmt_modes[] = {
256 /* 0x01 - 640x350@85Hz */
257 { DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER, 31500, 640, 672,
258 736, 832, 0, 350, 382, 385, 445, 0,
259 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
260 /* 0x02 - 640x400@85Hz */
261 { DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER, 31500, 640, 672,
262 736, 832, 0, 400, 401, 404, 445, 0,
263 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
264 /* 0x03 - 720x400@85Hz */
265 { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 756,
266 828, 936, 0, 400, 401, 404, 446, 0,
267 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
268 /* 0x04 - 640x480@60Hz */
269 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
270 752, 800, 0, 480, 490, 492, 525, 0,
271 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
272 /* 0x05 - 640x480@72Hz */
273 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664,
274 704, 832, 0, 480, 489, 492, 520, 0,
275 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
276 /* 0x06 - 640x480@75Hz */
277 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 656,
278 720, 840, 0, 480, 481, 484, 500, 0,
279 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
280 /* 0x07 - 640x480@85Hz */
281 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 36000, 640, 696,
282 752, 832, 0, 480, 481, 484, 509, 0,
283 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
284 /* 0x08 - 800x600@56Hz */
285 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 36000, 800, 824,
286 896, 1024, 0, 600, 601, 603, 625, 0,
287 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
288 /* 0x09 - 800x600@60Hz */
289 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
290 968, 1056, 0, 600, 601, 605, 628, 0,
291 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
292 /* 0x0a - 800x600@72Hz */
293 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 50000, 800, 856,
294 976, 1040, 0, 600, 637, 643, 666, 0,
295 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
296 /* 0x0b - 800x600@75Hz */
297 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 49500, 800, 816,
298 896, 1056, 0, 600, 601, 604, 625, 0,
299 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
300 /* 0x0c - 800x600@85Hz */
301 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 56250, 800, 832,
302 896, 1048, 0, 600, 601, 604, 631, 0,
303 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
304 /* 0x0d - 800x600@120Hz RB */
305 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 73250, 800, 848,
306 880, 960, 0, 600, 603, 607, 636, 0,
307 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
308 /* 0x0e - 848x480@60Hz */
309 { DRM_MODE("848x480", DRM_MODE_TYPE_DRIVER, 33750, 848, 864,
310 976, 1088, 0, 480, 486, 494, 517, 0,
311 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
312 /* 0x0f - 1024x768@43Hz, interlace */
313 { DRM_MODE("1024x768i", DRM_MODE_TYPE_DRIVER, 44900, 1024, 1032,
314 1208, 1264, 0, 768, 768, 776, 817, 0,
315 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
316 DRM_MODE_FLAG_INTERLACE) },
317 /* 0x10 - 1024x768@60Hz */
318 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
319 1184, 1344, 0, 768, 771, 777, 806, 0,
320 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
321 /* 0x11 - 1024x768@70Hz */
322 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 75000, 1024, 1048,
323 1184, 1328, 0, 768, 771, 777, 806, 0,
324 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
325 /* 0x12 - 1024x768@75Hz */
326 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78750, 1024, 1040,
327 1136, 1312, 0, 768, 769, 772, 800, 0,
328 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
329 /* 0x13 - 1024x768@85Hz */
330 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 94500, 1024, 1072,
331 1168, 1376, 0, 768, 769, 772, 808, 0,
332 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
333 /* 0x14 - 1024x768@120Hz RB */
334 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 115500, 1024, 1072,
335 1104, 1184, 0, 768, 771, 775, 813, 0,
336 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
337 /* 0x15 - 1152x864@75Hz */
338 { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
339 1344, 1600, 0, 864, 865, 868, 900, 0,
340 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
341 /* 0x55 - 1280x720@60Hz */
342 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1390,
343 1430, 1650, 0, 720, 725, 730, 750, 0,
344 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
345 /* 0x16 - 1280x768@60Hz RB */
346 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 68250, 1280, 1328,
347 1360, 1440, 0, 768, 771, 778, 790, 0,
348 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
349 /* 0x17 - 1280x768@60Hz */
350 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
351 1472, 1664, 0, 768, 771, 778, 798, 0,
352 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
353 /* 0x18 - 1280x768@75Hz */
354 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 102250, 1280, 1360,
355 1488, 1696, 0, 768, 771, 778, 805, 0,
356 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
357 /* 0x19 - 1280x768@85Hz */
358 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 117500, 1280, 1360,
359 1496, 1712, 0, 768, 771, 778, 809, 0,
360 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
361 /* 0x1a - 1280x768@120Hz RB */
362 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 140250, 1280, 1328,
363 1360, 1440, 0, 768, 771, 778, 813, 0,
364 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
365 /* 0x1b - 1280x800@60Hz RB */
366 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 71000, 1280, 1328,
367 1360, 1440, 0, 800, 803, 809, 823, 0,
368 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
369 /* 0x1c - 1280x800@60Hz */
370 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
371 1480, 1680, 0, 800, 803, 809, 831, 0,
372 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
373 /* 0x1d - 1280x800@75Hz */
374 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 106500, 1280, 1360,
375 1488, 1696, 0, 800, 803, 809, 838, 0,
376 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
377 /* 0x1e - 1280x800@85Hz */
378 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 122500, 1280, 1360,
379 1496, 1712, 0, 800, 803, 809, 843, 0,
380 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
381 /* 0x1f - 1280x800@120Hz RB */
382 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 146250, 1280, 1328,
383 1360, 1440, 0, 800, 803, 809, 847, 0,
384 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
385 /* 0x20 - 1280x960@60Hz */
386 { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
387 1488, 1800, 0, 960, 961, 964, 1000, 0,
388 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
389 /* 0x21 - 1280x960@85Hz */
390 { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1344,
391 1504, 1728, 0, 960, 961, 964, 1011, 0,
392 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
393 /* 0x22 - 1280x960@120Hz RB */
394 { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 175500, 1280, 1328,
395 1360, 1440, 0, 960, 963, 967, 1017, 0,
396 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
397 /* 0x23 - 1280x1024@60Hz */
398 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
399 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
400 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
401 /* 0x24 - 1280x1024@75Hz */
402 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 135000, 1280, 1296,
403 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
404 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
405 /* 0x25 - 1280x1024@85Hz */
406 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 157500, 1280, 1344,
407 1504, 1728, 0, 1024, 1025, 1028, 1072, 0,
408 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
409 /* 0x26 - 1280x1024@120Hz RB */
410 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 187250, 1280, 1328,
411 1360, 1440, 0, 1024, 1027, 1034, 1084, 0,
412 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
413 /* 0x27 - 1360x768@60Hz */
414 { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
415 1536, 1792, 0, 768, 771, 777, 795, 0,
416 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
417 /* 0x28 - 1360x768@120Hz RB */
418 { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 148250, 1360, 1408,
419 1440, 1520, 0, 768, 771, 776, 813, 0,
420 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
421 /* 0x51 - 1366x768@60Hz */
422 { DRM_MODE("1366x768", DRM_MODE_TYPE_DRIVER, 85500, 1366, 1436,
423 1579, 1792, 0, 768, 771, 774, 798, 0,
424 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
425 /* 0x56 - 1366x768@60Hz */
426 { DRM_MODE("1366x768", DRM_MODE_TYPE_DRIVER, 72000, 1366, 1380,
427 1436, 1500, 0, 768, 769, 772, 800, 0,
428 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
429 /* 0x29 - 1400x1050@60Hz RB */
430 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 101000, 1400, 1448,
431 1480, 1560, 0, 1050, 1053, 1057, 1080, 0,
432 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
433 /* 0x2a - 1400x1050@60Hz */
434 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
435 1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
436 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
437 /* 0x2b - 1400x1050@75Hz */
438 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 156000, 1400, 1504,
439 1648, 1896, 0, 1050, 1053, 1057, 1099, 0,
440 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
441 /* 0x2c - 1400x1050@85Hz */
442 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 179500, 1400, 1504,
443 1656, 1912, 0, 1050, 1053, 1057, 1105, 0,
444 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
445 /* 0x2d - 1400x1050@120Hz RB */
446 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 208000, 1400, 1448,
447 1480, 1560, 0, 1050, 1053, 1057, 1112, 0,
448 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
449 /* 0x2e - 1440x900@60Hz RB */
450 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 88750, 1440, 1488,
451 1520, 1600, 0, 900, 903, 909, 926, 0,
452 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
453 /* 0x2f - 1440x900@60Hz */
454 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
455 1672, 1904, 0, 900, 903, 909, 934, 0,
456 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
457 /* 0x30 - 1440x900@75Hz */
458 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 136750, 1440, 1536,
459 1688, 1936, 0, 900, 903, 909, 942, 0,
460 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
461 /* 0x31 - 1440x900@85Hz */
462 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 157000, 1440, 1544,
463 1696, 1952, 0, 900, 903, 909, 948, 0,
464 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
465 /* 0x32 - 1440x900@120Hz RB */
466 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 182750, 1440, 1488,
467 1520, 1600, 0, 900, 903, 909, 953, 0,
468 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
469 /* 0x53 - 1600x900@60Hz */
470 { DRM_MODE("1600x900", DRM_MODE_TYPE_DRIVER, 108000, 1600, 1624,
471 1704, 1800, 0, 900, 901, 904, 1000, 0,
472 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
473 /* 0x33 - 1600x1200@60Hz */
474 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
475 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
476 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
477 /* 0x34 - 1600x1200@65Hz */
478 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 175500, 1600, 1664,
479 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
480 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
481 /* 0x35 - 1600x1200@70Hz */
482 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 189000, 1600, 1664,
483 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
484 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
485 /* 0x36 - 1600x1200@75Hz */
486 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 202500, 1600, 1664,
487 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
488 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
489 /* 0x37 - 1600x1200@85Hz */
490 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 229500, 1600, 1664,
491 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
492 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
493 /* 0x38 - 1600x1200@120Hz RB */
494 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 268250, 1600, 1648,
495 1680, 1760, 0, 1200, 1203, 1207, 1271, 0,
496 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
497 /* 0x39 - 1680x1050@60Hz RB */
498 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 119000, 1680, 1728,
499 1760, 1840, 0, 1050, 1053, 1059, 1080, 0,
500 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
501 /* 0x3a - 1680x1050@60Hz */
502 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
503 1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
504 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
505 /* 0x3b - 1680x1050@75Hz */
506 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 187000, 1680, 1800,
507 1976, 2272, 0, 1050, 1053, 1059, 1099, 0,
508 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
509 /* 0x3c - 1680x1050@85Hz */
510 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 214750, 1680, 1808,
511 1984, 2288, 0, 1050, 1053, 1059, 1105, 0,
512 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
513 /* 0x3d - 1680x1050@120Hz RB */
514 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 245500, 1680, 1728,
515 1760, 1840, 0, 1050, 1053, 1059, 1112, 0,
516 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
517 /* 0x3e - 1792x1344@60Hz */
518 { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
519 2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
520 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
521 /* 0x3f - 1792x1344@75Hz */
522 { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 261000, 1792, 1888,
523 2104, 2456, 0, 1344, 1345, 1348, 1417, 0,
524 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
525 /* 0x40 - 1792x1344@120Hz RB */
526 { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 333250, 1792, 1840,
527 1872, 1952, 0, 1344, 1347, 1351, 1423, 0,
528 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
529 /* 0x41 - 1856x1392@60Hz */
530 { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
531 2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
532 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
533 /* 0x42 - 1856x1392@75Hz */
534 { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 288000, 1856, 1984,
535 2208, 2560, 0, 1392, 1393, 1396, 1500, 0,
536 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
537 /* 0x43 - 1856x1392@120Hz RB */
538 { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 356500, 1856, 1904,
539 1936, 2016, 0, 1392, 1395, 1399, 1474, 0,
540 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
541 /* 0x52 - 1920x1080@60Hz */
542 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
543 2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
544 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
545 /* 0x44 - 1920x1200@60Hz RB */
546 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 154000, 1920, 1968,
547 2000, 2080, 0, 1200, 1203, 1209, 1235, 0,
548 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
549 /* 0x45 - 1920x1200@60Hz */
550 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
551 2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
552 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
553 /* 0x46 - 1920x1200@75Hz */
554 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 245250, 1920, 2056,
555 2264, 2608, 0, 1200, 1203, 1209, 1255, 0,
556 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
557 /* 0x47 - 1920x1200@85Hz */
558 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 281250, 1920, 2064,
559 2272, 2624, 0, 1200, 1203, 1209, 1262, 0,
560 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
561 /* 0x48 - 1920x1200@120Hz RB */
562 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 317000, 1920, 1968,
563 2000, 2080, 0, 1200, 1203, 1209, 1271, 0,
564 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
565 /* 0x49 - 1920x1440@60Hz */
566 { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
567 2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
568 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
569 /* 0x4a - 1920x1440@75Hz */
570 { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2064,
571 2288, 2640, 0, 1440, 1441, 1444, 1500, 0,
572 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
573 /* 0x4b - 1920x1440@120Hz RB */
574 { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 380500, 1920, 1968,
575 2000, 2080, 0, 1440, 1443, 1447, 1525, 0,
576 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
577 /* 0x54 - 2048x1152@60Hz */
578 { DRM_MODE("2048x1152", DRM_MODE_TYPE_DRIVER, 162000, 2048, 2074,
579 2154, 2250, 0, 1152, 1153, 1156, 1200, 0,
580 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
581 /* 0x4c - 2560x1600@60Hz RB */
582 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 268500, 2560, 2608,
583 2640, 2720, 0, 1600, 1603, 1609, 1646, 0,
584 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
585 /* 0x4d - 2560x1600@60Hz */
586 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
587 3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
588 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
589 /* 0x4e - 2560x1600@75Hz */
590 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 443250, 2560, 2768,
591 3048, 3536, 0, 1600, 1603, 1609, 1672, 0,
592 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
593 /* 0x4f - 2560x1600@85Hz */
594 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 505250, 2560, 2768,
595 3048, 3536, 0, 1600, 1603, 1609, 1682, 0,
596 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
597 /* 0x50 - 2560x1600@120Hz RB */
598 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 552750, 2560, 2608,
599 2640, 2720, 0, 1600, 1603, 1609, 1694, 0,
600 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
601 /* 0x57 - 4096x2160@60Hz RB */
602 { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 556744, 4096, 4104,
603 4136, 4176, 0, 2160, 2208, 2216, 2222, 0,
604 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
605 /* 0x58 - 4096x2160@59.94Hz RB */
606 { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 556188, 4096, 4104,
607 4136, 4176, 0, 2160, 2208, 2216, 2222, 0,
608 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
609 };
610
611 /*
612 * These more or less come from the DMT spec. The 720x400 modes are
613 * inferred from historical 80x25 practice. The 640x480@67 and 832x624@75
614 * modes are old-school Mac modes. The EDID spec says the 1152x864@75 mode
615 * should be 1152x870, again for the Mac, but instead we use the x864 DMT
616 * mode.
617 *
618 * The DMT modes have been fact-checked; the rest are mild guesses.
619 */
620 static const struct drm_display_mode edid_est_modes[] = {
621 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
622 968, 1056, 0, 600, 601, 605, 628, 0,
623 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@60Hz */
624 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 36000, 800, 824,
625 896, 1024, 0, 600, 601, 603, 625, 0,
626 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@56Hz */
627 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 656,
628 720, 840, 0, 480, 481, 484, 500, 0,
629 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@75Hz */
630 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664,
631 704, 832, 0, 480, 489, 492, 520, 0,
632 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@72Hz */
633 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 30240, 640, 704,
634 768, 864, 0, 480, 483, 486, 525, 0,
635 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@67Hz */
636 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
637 752, 800, 0, 480, 490, 492, 525, 0,
638 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@60Hz */
639 { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 738,
640 846, 900, 0, 400, 421, 423, 449, 0,
641 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 720x400@88Hz */
642 { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 28320, 720, 738,
643 846, 900, 0, 400, 412, 414, 449, 0,
644 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 720x400@70Hz */
645 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 135000, 1280, 1296,
646 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
647 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1280x1024@75Hz */
648 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78750, 1024, 1040,
649 1136, 1312, 0, 768, 769, 772, 800, 0,
650 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1024x768@75Hz */
651 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 75000, 1024, 1048,
652 1184, 1328, 0, 768, 771, 777, 806, 0,
653 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1024x768@70Hz */
654 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
655 1184, 1344, 0, 768, 771, 777, 806, 0,
656 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1024x768@60Hz */
657 { DRM_MODE("1024x768i", DRM_MODE_TYPE_DRIVER,44900, 1024, 1032,
658 1208, 1264, 0, 768, 768, 776, 817, 0,
659 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_INTERLACE) }, /* 1024x768@43Hz */
660 { DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 57284, 832, 864,
661 928, 1152, 0, 624, 625, 628, 667, 0,
662 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 832x624@75Hz */
663 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 49500, 800, 816,
664 896, 1056, 0, 600, 601, 604, 625, 0,
665 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@75Hz */
666 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 50000, 800, 856,
667 976, 1040, 0, 600, 637, 643, 666, 0,
668 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@72Hz */
669 { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
670 1344, 1600, 0, 864, 865, 868, 900, 0,
671 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1152x864@75Hz */
672 };
673
674 struct minimode {
675 short w;
676 short h;
677 short r;
678 short rb;
679 };
680
681 static const struct minimode est3_modes[] = {
682 /* byte 6 */
683 { 640, 350, 85, 0 },
684 { 640, 400, 85, 0 },
685 { 720, 400, 85, 0 },
686 { 640, 480, 85, 0 },
687 { 848, 480, 60, 0 },
688 { 800, 600, 85, 0 },
689 { 1024, 768, 85, 0 },
690 { 1152, 864, 75, 0 },
691 /* byte 7 */
692 { 1280, 768, 60, 1 },
693 { 1280, 768, 60, 0 },
694 { 1280, 768, 75, 0 },
695 { 1280, 768, 85, 0 },
696 { 1280, 960, 60, 0 },
697 { 1280, 960, 85, 0 },
698 { 1280, 1024, 60, 0 },
699 { 1280, 1024, 85, 0 },
700 /* byte 8 */
701 { 1360, 768, 60, 0 },
702 { 1440, 900, 60, 1 },
703 { 1440, 900, 60, 0 },
704 { 1440, 900, 75, 0 },
705 { 1440, 900, 85, 0 },
706 { 1400, 1050, 60, 1 },
707 { 1400, 1050, 60, 0 },
708 { 1400, 1050, 75, 0 },
709 /* byte 9 */
710 { 1400, 1050, 85, 0 },
711 { 1680, 1050, 60, 1 },
712 { 1680, 1050, 60, 0 },
713 { 1680, 1050, 75, 0 },
714 { 1680, 1050, 85, 0 },
715 { 1600, 1200, 60, 0 },
716 { 1600, 1200, 65, 0 },
717 { 1600, 1200, 70, 0 },
718 /* byte 10 */
719 { 1600, 1200, 75, 0 },
720 { 1600, 1200, 85, 0 },
721 { 1792, 1344, 60, 0 },
722 { 1792, 1344, 75, 0 },
723 { 1856, 1392, 60, 0 },
724 { 1856, 1392, 75, 0 },
725 { 1920, 1200, 60, 1 },
726 { 1920, 1200, 60, 0 },
727 /* byte 11 */
728 { 1920, 1200, 75, 0 },
729 { 1920, 1200, 85, 0 },
730 { 1920, 1440, 60, 0 },
731 { 1920, 1440, 75, 0 },
732 };
733
734 static const struct minimode extra_modes[] = {
735 { 1024, 576, 60, 0 },
736 { 1366, 768, 60, 0 },
737 { 1600, 900, 60, 0 },
738 { 1680, 945, 60, 0 },
739 { 1920, 1080, 60, 0 },
740 { 2048, 1152, 60, 0 },
741 { 2048, 1536, 60, 0 },
742 };
743
744 /*
745 * From CEA/CTA-861 spec.
746 *
747 * Do not access directly, instead always use cea_mode_for_vic().
748 */
749 static const struct drm_display_mode edid_cea_modes_1[] = {
750 /* 1 - 640x480@60Hz 4:3 */
751 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
752 752, 800, 0, 480, 490, 492, 525, 0,
753 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
754 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
755 /* 2 - 720x480@60Hz 4:3 */
756 { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 27000, 720, 736,
757 798, 858, 0, 480, 489, 495, 525, 0,
758 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
759 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
760 /* 3 - 720x480@60Hz 16:9 */
761 { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 27000, 720, 736,
762 798, 858, 0, 480, 489, 495, 525, 0,
763 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
764 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
765 /* 4 - 1280x720@60Hz 16:9 */
766 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1390,
767 1430, 1650, 0, 720, 725, 730, 750, 0,
768 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
769 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
770 /* 5 - 1920x1080i@60Hz 16:9 */
771 { DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2008,
772 2052, 2200, 0, 1080, 1084, 1094, 1125, 0,
773 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
774 DRM_MODE_FLAG_INTERLACE),
775 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
776 /* 6 - 720(1440)x480i@60Hz 4:3 */
777 { DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 13500, 720, 739,
778 801, 858, 0, 480, 488, 494, 525, 0,
779 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
780 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
781 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
782 /* 7 - 720(1440)x480i@60Hz 16:9 */
783 { DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 13500, 720, 739,
784 801, 858, 0, 480, 488, 494, 525, 0,
785 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
786 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
787 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
788 /* 8 - 720(1440)x240@60Hz 4:3 */
789 { DRM_MODE("720x240", DRM_MODE_TYPE_DRIVER, 13500, 720, 739,
790 801, 858, 0, 240, 244, 247, 262, 0,
791 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
792 DRM_MODE_FLAG_DBLCLK),
793 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
794 /* 9 - 720(1440)x240@60Hz 16:9 */
795 { DRM_MODE("720x240", DRM_MODE_TYPE_DRIVER, 13500, 720, 739,
796 801, 858, 0, 240, 244, 247, 262, 0,
797 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
798 DRM_MODE_FLAG_DBLCLK),
799 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
800 /* 10 - 2880x480i@60Hz 4:3 */
801 { DRM_MODE("2880x480i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
802 3204, 3432, 0, 480, 488, 494, 525, 0,
803 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
804 DRM_MODE_FLAG_INTERLACE),
805 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
806 /* 11 - 2880x480i@60Hz 16:9 */
807 { DRM_MODE("2880x480i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
808 3204, 3432, 0, 480, 488, 494, 525, 0,
809 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
810 DRM_MODE_FLAG_INTERLACE),
811 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
812 /* 12 - 2880x240@60Hz 4:3 */
813 { DRM_MODE("2880x240", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
814 3204, 3432, 0, 240, 244, 247, 262, 0,
815 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
816 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
817 /* 13 - 2880x240@60Hz 16:9 */
818 { DRM_MODE("2880x240", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
819 3204, 3432, 0, 240, 244, 247, 262, 0,
820 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
821 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
822 /* 14 - 1440x480@60Hz 4:3 */
823 { DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1472,
824 1596, 1716, 0, 480, 489, 495, 525, 0,
825 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
826 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
827 /* 15 - 1440x480@60Hz 16:9 */
828 { DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1472,
829 1596, 1716, 0, 480, 489, 495, 525, 0,
830 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
831 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
832 /* 16 - 1920x1080@60Hz 16:9 */
833 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
834 2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
835 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
836 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
837 /* 17 - 720x576@50Hz 4:3 */
838 { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
839 796, 864, 0, 576, 581, 586, 625, 0,
840 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
841 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
842 /* 18 - 720x576@50Hz 16:9 */
843 { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
844 796, 864, 0, 576, 581, 586, 625, 0,
845 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
846 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
847 /* 19 - 1280x720@50Hz 16:9 */
848 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1720,
849 1760, 1980, 0, 720, 725, 730, 750, 0,
850 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
851 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
852 /* 20 - 1920x1080i@50Hz 16:9 */
853 { DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2448,
854 2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
855 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
856 DRM_MODE_FLAG_INTERLACE),
857 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
858 /* 21 - 720(1440)x576i@50Hz 4:3 */
859 { DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 13500, 720, 732,
860 795, 864, 0, 576, 580, 586, 625, 0,
861 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
862 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
863 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
864 /* 22 - 720(1440)x576i@50Hz 16:9 */
865 { DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 13500, 720, 732,
866 795, 864, 0, 576, 580, 586, 625, 0,
867 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
868 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
869 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
870 /* 23 - 720(1440)x288@50Hz 4:3 */
871 { DRM_MODE("720x288", DRM_MODE_TYPE_DRIVER, 13500, 720, 732,
872 795, 864, 0, 288, 290, 293, 312, 0,
873 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
874 DRM_MODE_FLAG_DBLCLK),
875 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
876 /* 24 - 720(1440)x288@50Hz 16:9 */
877 { DRM_MODE("720x288", DRM_MODE_TYPE_DRIVER, 13500, 720, 732,
878 795, 864, 0, 288, 290, 293, 312, 0,
879 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
880 DRM_MODE_FLAG_DBLCLK),
881 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
882 /* 25 - 2880x576i@50Hz 4:3 */
883 { DRM_MODE("2880x576i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
884 3180, 3456, 0, 576, 580, 586, 625, 0,
885 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
886 DRM_MODE_FLAG_INTERLACE),
887 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
888 /* 26 - 2880x576i@50Hz 16:9 */
889 { DRM_MODE("2880x576i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
890 3180, 3456, 0, 576, 580, 586, 625, 0,
891 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
892 DRM_MODE_FLAG_INTERLACE),
893 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
894 /* 27 - 2880x288@50Hz 4:3 */
895 { DRM_MODE("2880x288", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
896 3180, 3456, 0, 288, 290, 293, 312, 0,
897 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
898 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
899 /* 28 - 2880x288@50Hz 16:9 */
900 { DRM_MODE("2880x288", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
901 3180, 3456, 0, 288, 290, 293, 312, 0,
902 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
903 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
904 /* 29 - 1440x576@50Hz 4:3 */
905 { DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1464,
906 1592, 1728, 0, 576, 581, 586, 625, 0,
907 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
908 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
909 /* 30 - 1440x576@50Hz 16:9 */
910 { DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1464,
911 1592, 1728, 0, 576, 581, 586, 625, 0,
912 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
913 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
914 /* 31 - 1920x1080@50Hz 16:9 */
915 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2448,
916 2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
917 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
918 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
919 /* 32 - 1920x1080@24Hz 16:9 */
920 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2558,
921 2602, 2750, 0, 1080, 1084, 1089, 1125, 0,
922 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
923 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
924 /* 33 - 1920x1080@25Hz 16:9 */
925 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2448,
926 2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
927 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
928 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
929 /* 34 - 1920x1080@30Hz 16:9 */
930 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2008,
931 2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
932 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
933 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
934 /* 35 - 2880x480@60Hz 4:3 */
935 { DRM_MODE("2880x480", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2944,
936 3192, 3432, 0, 480, 489, 495, 525, 0,
937 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
938 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
939 /* 36 - 2880x480@60Hz 16:9 */
940 { DRM_MODE("2880x480", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2944,
941 3192, 3432, 0, 480, 489, 495, 525, 0,
942 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
943 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
944 /* 37 - 2880x576@50Hz 4:3 */
945 { DRM_MODE("2880x576", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2928,
946 3184, 3456, 0, 576, 581, 586, 625, 0,
947 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
948 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
949 /* 38 - 2880x576@50Hz 16:9 */
950 { DRM_MODE("2880x576", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2928,
951 3184, 3456, 0, 576, 581, 586, 625, 0,
952 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
953 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
954 /* 39 - 1920x1080i@50Hz 16:9 */
955 { DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 72000, 1920, 1952,
956 2120, 2304, 0, 1080, 1126, 1136, 1250, 0,
957 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC |
958 DRM_MODE_FLAG_INTERLACE),
959 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
960 /* 40 - 1920x1080i@100Hz 16:9 */
961 { DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2448,
962 2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
963 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
964 DRM_MODE_FLAG_INTERLACE),
965 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
966 /* 41 - 1280x720@100Hz 16:9 */
967 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1720,
968 1760, 1980, 0, 720, 725, 730, 750, 0,
969 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
970 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
971 /* 42 - 720x576@100Hz 4:3 */
972 { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
973 796, 864, 0, 576, 581, 586, 625, 0,
974 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
975 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
976 /* 43 - 720x576@100Hz 16:9 */
977 { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
978 796, 864, 0, 576, 581, 586, 625, 0,
979 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
980 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
981 /* 44 - 720(1440)x576i@100Hz 4:3 */
982 { DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
983 795, 864, 0, 576, 580, 586, 625, 0,
984 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
985 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
986 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
987 /* 45 - 720(1440)x576i@100Hz 16:9 */
988 { DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
989 795, 864, 0, 576, 580, 586, 625, 0,
990 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
991 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
992 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
993 /* 46 - 1920x1080i@120Hz 16:9 */
994 { DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
995 2052, 2200, 0, 1080, 1084, 1094, 1125, 0,
996 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
997 DRM_MODE_FLAG_INTERLACE),
998 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
999 /* 47 - 1280x720@120Hz 16:9 */
1000 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1390,
1001 1430, 1650, 0, 720, 725, 730, 750, 0,
1002 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1003 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1004 /* 48 - 720x480@120Hz 4:3 */
1005 { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 54000, 720, 736,
1006 798, 858, 0, 480, 489, 495, 525, 0,
1007 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
1008 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
1009 /* 49 - 720x480@120Hz 16:9 */
1010 { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 54000, 720, 736,
1011 798, 858, 0, 480, 489, 495, 525, 0,
1012 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
1013 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1014 /* 50 - 720(1440)x480i@120Hz 4:3 */
1015 { DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 27000, 720, 739,
1016 801, 858, 0, 480, 488, 494, 525, 0,
1017 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
1018 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
1019 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
1020 /* 51 - 720(1440)x480i@120Hz 16:9 */
1021 { DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 27000, 720, 739,
1022 801, 858, 0, 480, 488, 494, 525, 0,
1023 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
1024 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
1025 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1026 /* 52 - 720x576@200Hz 4:3 */
1027 { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 108000, 720, 732,
1028 796, 864, 0, 576, 581, 586, 625, 0,
1029 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
1030 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
1031 /* 53 - 720x576@200Hz 16:9 */
1032 { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 108000, 720, 732,
1033 796, 864, 0, 576, 581, 586, 625, 0,
1034 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
1035 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1036 /* 54 - 720(1440)x576i@200Hz 4:3 */
1037 { DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
1038 795, 864, 0, 576, 580, 586, 625, 0,
1039 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
1040 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
1041 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
1042 /* 55 - 720(1440)x576i@200Hz 16:9 */
1043 { DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
1044 795, 864, 0, 576, 580, 586, 625, 0,
1045 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
1046 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
1047 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1048 /* 56 - 720x480@240Hz 4:3 */
1049 { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 108000, 720, 736,
1050 798, 858, 0, 480, 489, 495, 525, 0,
1051 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
1052 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
1053 /* 57 - 720x480@240Hz 16:9 */
1054 { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 108000, 720, 736,
1055 798, 858, 0, 480, 489, 495, 525, 0,
1056 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
1057 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1058 /* 58 - 720(1440)x480i@240Hz 4:3 */
1059 { DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 54000, 720, 739,
1060 801, 858, 0, 480, 488, 494, 525, 0,
1061 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
1062 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
1063 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
1064 /* 59 - 720(1440)x480i@240Hz 16:9 */
1065 { DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 54000, 720, 739,
1066 801, 858, 0, 480, 488, 494, 525, 0,
1067 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
1068 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
1069 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1070 /* 60 - 1280x720@24Hz 16:9 */
1071 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 59400, 1280, 3040,
1072 3080, 3300, 0, 720, 725, 730, 750, 0,
1073 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1074 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1075 /* 61 - 1280x720@25Hz 16:9 */
1076 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3700,
1077 3740, 3960, 0, 720, 725, 730, 750, 0,
1078 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1079 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1080 /* 62 - 1280x720@30Hz 16:9 */
1081 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3040,
1082 3080, 3300, 0, 720, 725, 730, 750, 0,
1083 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1084 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1085 /* 63 - 1920x1080@120Hz 16:9 */
1086 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2008,
1087 2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
1088 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1089 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1090 /* 64 - 1920x1080@100Hz 16:9 */
1091 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2448,
1092 2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
1093 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1094 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1095 /* 65 - 1280x720@24Hz 64:27 */
1096 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 59400, 1280, 3040,
1097 3080, 3300, 0, 720, 725, 730, 750, 0,
1098 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1099 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1100 /* 66 - 1280x720@25Hz 64:27 */
1101 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3700,
1102 3740, 3960, 0, 720, 725, 730, 750, 0,
1103 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1104 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1105 /* 67 - 1280x720@30Hz 64:27 */
1106 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3040,
1107 3080, 3300, 0, 720, 725, 730, 750, 0,
1108 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1109 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1110 /* 68 - 1280x720@50Hz 64:27 */
1111 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1720,
1112 1760, 1980, 0, 720, 725, 730, 750, 0,
1113 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1114 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1115 /* 69 - 1280x720@60Hz 64:27 */
1116 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1390,
1117 1430, 1650, 0, 720, 725, 730, 750, 0,
1118 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1119 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1120 /* 70 - 1280x720@100Hz 64:27 */
1121 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1720,
1122 1760, 1980, 0, 720, 725, 730, 750, 0,
1123 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1124 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1125 /* 71 - 1280x720@120Hz 64:27 */
1126 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1390,
1127 1430, 1650, 0, 720, 725, 730, 750, 0,
1128 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1129 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1130 /* 72 - 1920x1080@24Hz 64:27 */
1131 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2558,
1132 2602, 2750, 0, 1080, 1084, 1089, 1125, 0,
1133 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1134 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1135 /* 73 - 1920x1080@25Hz 64:27 */
1136 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2448,
1137 2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
1138 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1139 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1140 /* 74 - 1920x1080@30Hz 64:27 */
1141 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2008,
1142 2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
1143 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1144 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1145 /* 75 - 1920x1080@50Hz 64:27 */
1146 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2448,
1147 2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
1148 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1149 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1150 /* 76 - 1920x1080@60Hz 64:27 */
1151 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
1152 2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
1153 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1154 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1155 /* 77 - 1920x1080@100Hz 64:27 */
1156 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2448,
1157 2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
1158 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1159 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1160 /* 78 - 1920x1080@120Hz 64:27 */
1161 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2008,
1162 2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
1163 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1164 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1165 /* 79 - 1680x720@24Hz 64:27 */
1166 { DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 59400, 1680, 3040,
1167 3080, 3300, 0, 720, 725, 730, 750, 0,
1168 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1169 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1170 /* 80 - 1680x720@25Hz 64:27 */
1171 { DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 59400, 1680, 2908,
1172 2948, 3168, 0, 720, 725, 730, 750, 0,
1173 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1174 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1175 /* 81 - 1680x720@30Hz 64:27 */
1176 { DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 59400, 1680, 2380,
1177 2420, 2640, 0, 720, 725, 730, 750, 0,
1178 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1179 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1180 /* 82 - 1680x720@50Hz 64:27 */
1181 { DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 82500, 1680, 1940,
1182 1980, 2200, 0, 720, 725, 730, 750, 0,
1183 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1184 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1185 /* 83 - 1680x720@60Hz 64:27 */
1186 { DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 99000, 1680, 1940,
1187 1980, 2200, 0, 720, 725, 730, 750, 0,
1188 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1189 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1190 /* 84 - 1680x720@100Hz 64:27 */
1191 { DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 165000, 1680, 1740,
1192 1780, 2000, 0, 720, 725, 730, 825, 0,
1193 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1194 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1195 /* 85 - 1680x720@120Hz 64:27 */
1196 { DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 198000, 1680, 1740,
1197 1780, 2000, 0, 720, 725, 730, 825, 0,
1198 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1199 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1200 /* 86 - 2560x1080@24Hz 64:27 */
1201 { DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 99000, 2560, 3558,
1202 3602, 3750, 0, 1080, 1084, 1089, 1100, 0,
1203 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1204 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1205 /* 87 - 2560x1080@25Hz 64:27 */
1206 { DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 90000, 2560, 3008,
1207 3052, 3200, 0, 1080, 1084, 1089, 1125, 0,
1208 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1209 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1210 /* 88 - 2560x1080@30Hz 64:27 */
1211 { DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 118800, 2560, 3328,
1212 3372, 3520, 0, 1080, 1084, 1089, 1125, 0,
1213 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1214 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1215 /* 89 - 2560x1080@50Hz 64:27 */
1216 { DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 185625, 2560, 3108,
1217 3152, 3300, 0, 1080, 1084, 1089, 1125, 0,
1218 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1219 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1220 /* 90 - 2560x1080@60Hz 64:27 */
1221 { DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 198000, 2560, 2808,
1222 2852, 3000, 0, 1080, 1084, 1089, 1100, 0,
1223 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1224 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1225 /* 91 - 2560x1080@100Hz 64:27 */
1226 { DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 371250, 2560, 2778,
1227 2822, 2970, 0, 1080, 1084, 1089, 1250, 0,
1228 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1229 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1230 /* 92 - 2560x1080@120Hz 64:27 */
1231 { DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 495000, 2560, 3108,
1232 3152, 3300, 0, 1080, 1084, 1089, 1250, 0,
1233 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1234 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1235 /* 93 - 3840x2160@24Hz 16:9 */
1236 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000, 3840, 5116,
1237 5204, 5500, 0, 2160, 2168, 2178, 2250, 0,
1238 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1239 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1240 /* 94 - 3840x2160@25Hz 16:9 */
1241 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000, 3840, 4896,
1242 4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1243 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1244 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1245 /* 95 - 3840x2160@30Hz 16:9 */
1246 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000, 3840, 4016,
1247 4104, 4400, 0, 2160, 2168, 2178, 2250, 0,
1248 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1249 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1250 /* 96 - 3840x2160@50Hz 16:9 */
1251 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 594000, 3840, 4896,
1252 4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1253 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1254 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1255 /* 97 - 3840x2160@60Hz 16:9 */
1256 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 594000, 3840, 4016,
1257 4104, 4400, 0, 2160, 2168, 2178, 2250, 0,
1258 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1259 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1260 /* 98 - 4096x2160@24Hz 256:135 */
1261 { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 297000, 4096, 5116,
1262 5204, 5500, 0, 2160, 2168, 2178, 2250, 0,
1263 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1264 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1265 /* 99 - 4096x2160@25Hz 256:135 */
1266 { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 297000, 4096, 5064,
1267 5152, 5280, 0, 2160, 2168, 2178, 2250, 0,
1268 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1269 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1270 /* 100 - 4096x2160@30Hz 256:135 */
1271 { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 297000, 4096, 4184,
1272 4272, 4400, 0, 2160, 2168, 2178, 2250, 0,
1273 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1274 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1275 /* 101 - 4096x2160@50Hz 256:135 */
1276 { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 594000, 4096, 5064,
1277 5152, 5280, 0, 2160, 2168, 2178, 2250, 0,
1278 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1279 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1280 /* 102 - 4096x2160@60Hz 256:135 */
1281 { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 594000, 4096, 4184,
1282 4272, 4400, 0, 2160, 2168, 2178, 2250, 0,
1283 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1284 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1285 /* 103 - 3840x2160@24Hz 64:27 */
1286 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000, 3840, 5116,
1287 5204, 5500, 0, 2160, 2168, 2178, 2250, 0,
1288 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1289 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1290 /* 104 - 3840x2160@25Hz 64:27 */
1291 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000, 3840, 4896,
1292 4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1293 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1294 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1295 /* 105 - 3840x2160@30Hz 64:27 */
1296 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000, 3840, 4016,
1297 4104, 4400, 0, 2160, 2168, 2178, 2250, 0,
1298 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1299 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1300 /* 106 - 3840x2160@50Hz 64:27 */
1301 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 594000, 3840, 4896,
1302 4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1303 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1304 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1305 /* 107 - 3840x2160@60Hz 64:27 */
1306 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 594000, 3840, 4016,
1307 4104, 4400, 0, 2160, 2168, 2178, 2250, 0,
1308 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1309 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1310 /* 108 - 1280x720@48Hz 16:9 */
1311 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 90000, 1280, 2240,
1312 2280, 2500, 0, 720, 725, 730, 750, 0,
1313 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1314 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1315 /* 109 - 1280x720@48Hz 64:27 */
1316 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 90000, 1280, 2240,
1317 2280, 2500, 0, 720, 725, 730, 750, 0,
1318 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1319 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1320 /* 110 - 1680x720@48Hz 64:27 */
1321 { DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 99000, 1680, 2490,
1322 2530, 2750, 0, 720, 725, 730, 750, 0,
1323 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1324 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1325 /* 111 - 1920x1080@48Hz 16:9 */
1326 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2558,
1327 2602, 2750, 0, 1080, 1084, 1089, 1125, 0,
1328 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1329 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1330 /* 112 - 1920x1080@48Hz 64:27 */
1331 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2558,
1332 2602, 2750, 0, 1080, 1084, 1089, 1125, 0,
1333 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1334 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1335 /* 113 - 2560x1080@48Hz 64:27 */
1336 { DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 198000, 2560, 3558,
1337 3602, 3750, 0, 1080, 1084, 1089, 1100, 0,
1338 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1339 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1340 /* 114 - 3840x2160@48Hz 16:9 */
1341 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 594000, 3840, 5116,
1342 5204, 5500, 0, 2160, 2168, 2178, 2250, 0,
1343 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1344 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1345 /* 115 - 4096x2160@48Hz 256:135 */
1346 { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 594000, 4096, 5116,
1347 5204, 5500, 0, 2160, 2168, 2178, 2250, 0,
1348 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1349 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1350 /* 116 - 3840x2160@48Hz 64:27 */
1351 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 594000, 3840, 5116,
1352 5204, 5500, 0, 2160, 2168, 2178, 2250, 0,
1353 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1354 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1355 /* 117 - 3840x2160@100Hz 16:9 */
1356 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 1188000, 3840, 4896,
1357 4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1358 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1359 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1360 /* 118 - 3840x2160@120Hz 16:9 */
1361 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 1188000, 3840, 4016,
1362 4104, 4400, 0, 2160, 2168, 2178, 2250, 0,
1363 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1364 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1365 /* 119 - 3840x2160@100Hz 64:27 */
1366 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 1188000, 3840, 4896,
1367 4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1368 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1369 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1370 /* 120 - 3840x2160@120Hz 64:27 */
1371 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 1188000, 3840, 4016,
1372 4104, 4400, 0, 2160, 2168, 2178, 2250, 0,
1373 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1374 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1375 /* 121 - 5120x2160@24Hz 64:27 */
1376 { DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 396000, 5120, 7116,
1377 7204, 7500, 0, 2160, 2168, 2178, 2200, 0,
1378 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1379 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1380 /* 122 - 5120x2160@25Hz 64:27 */
1381 { DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 396000, 5120, 6816,
1382 6904, 7200, 0, 2160, 2168, 2178, 2200, 0,
1383 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1384 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1385 /* 123 - 5120x2160@30Hz 64:27 */
1386 { DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 396000, 5120, 5784,
1387 5872, 6000, 0, 2160, 2168, 2178, 2200, 0,
1388 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1389 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1390 /* 124 - 5120x2160@48Hz 64:27 */
1391 { DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 742500, 5120, 5866,
1392 5954, 6250, 0, 2160, 2168, 2178, 2475, 0,
1393 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1394 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1395 /* 125 - 5120x2160@50Hz 64:27 */
1396 { DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 742500, 5120, 6216,
1397 6304, 6600, 0, 2160, 2168, 2178, 2250, 0,
1398 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1399 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1400 /* 126 - 5120x2160@60Hz 64:27 */
1401 { DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 742500, 5120, 5284,
1402 5372, 5500, 0, 2160, 2168, 2178, 2250, 0,
1403 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1404 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1405 /* 127 - 5120x2160@100Hz 64:27 */
1406 { DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 1485000, 5120, 6216,
1407 6304, 6600, 0, 2160, 2168, 2178, 2250, 0,
1408 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1409 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1410 };
1411
1412 /*
1413 * From CEA/CTA-861 spec.
1414 *
1415 * Do not access directly, instead always use cea_mode_for_vic().
1416 */
1417 static const struct drm_display_mode edid_cea_modes_193[] = {
1418 /* 193 - 5120x2160@120Hz 64:27 */
1419 { DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 1485000, 5120, 5284,
1420 5372, 5500, 0, 2160, 2168, 2178, 2250, 0,
1421 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1422 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1423 /* 194 - 7680x4320@24Hz 16:9 */
1424 { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 10232,
1425 10408, 11000, 0, 4320, 4336, 4356, 4500, 0,
1426 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1427 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1428 /* 195 - 7680x4320@25Hz 16:9 */
1429 { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 10032,
1430 10208, 10800, 0, 4320, 4336, 4356, 4400, 0,
1431 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1432 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1433 /* 196 - 7680x4320@30Hz 16:9 */
1434 { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 8232,
1435 8408, 9000, 0, 4320, 4336, 4356, 4400, 0,
1436 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1437 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1438 /* 197 - 7680x4320@48Hz 16:9 */
1439 { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 10232,
1440 10408, 11000, 0, 4320, 4336, 4356, 4500, 0,
1441 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1442 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1443 /* 198 - 7680x4320@50Hz 16:9 */
1444 { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 10032,
1445 10208, 10800, 0, 4320, 4336, 4356, 4400, 0,
1446 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1447 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1448 /* 199 - 7680x4320@60Hz 16:9 */
1449 { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 8232,
1450 8408, 9000, 0, 4320, 4336, 4356, 4400, 0,
1451 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1452 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1453 /* 200 - 7680x4320@100Hz 16:9 */
1454 { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 4752000, 7680, 9792,
1455 9968, 10560, 0, 4320, 4336, 4356, 4500, 0,
1456 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1457 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1458 /* 201 - 7680x4320@120Hz 16:9 */
1459 { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 4752000, 7680, 8032,
1460 8208, 8800, 0, 4320, 4336, 4356, 4500, 0,
1461 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1462 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1463 /* 202 - 7680x4320@24Hz 64:27 */
1464 { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 10232,
1465 10408, 11000, 0, 4320, 4336, 4356, 4500, 0,
1466 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1467 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1468 /* 203 - 7680x4320@25Hz 64:27 */
1469 { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 10032,
1470 10208, 10800, 0, 4320, 4336, 4356, 4400, 0,
1471 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1472 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1473 /* 204 - 7680x4320@30Hz 64:27 */
1474 { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 8232,
1475 8408, 9000, 0, 4320, 4336, 4356, 4400, 0,
1476 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1477 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1478 /* 205 - 7680x4320@48Hz 64:27 */
1479 { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 10232,
1480 10408, 11000, 0, 4320, 4336, 4356, 4500, 0,
1481 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1482 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1483 /* 206 - 7680x4320@50Hz 64:27 */
1484 { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 10032,
1485 10208, 10800, 0, 4320, 4336, 4356, 4400, 0,
1486 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1487 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1488 /* 207 - 7680x4320@60Hz 64:27 */
1489 { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 8232,
1490 8408, 9000, 0, 4320, 4336, 4356, 4400, 0,
1491 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1492 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1493 /* 208 - 7680x4320@100Hz 64:27 */
1494 { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 4752000, 7680, 9792,
1495 9968, 10560, 0, 4320, 4336, 4356, 4500, 0,
1496 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1497 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1498 /* 209 - 7680x4320@120Hz 64:27 */
1499 { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 4752000, 7680, 8032,
1500 8208, 8800, 0, 4320, 4336, 4356, 4500, 0,
1501 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1502 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1503 /* 210 - 10240x4320@24Hz 64:27 */
1504 { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 1485000, 10240, 11732,
1505 11908, 12500, 0, 4320, 4336, 4356, 4950, 0,
1506 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1507 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1508 /* 211 - 10240x4320@25Hz 64:27 */
1509 { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 1485000, 10240, 12732,
1510 12908, 13500, 0, 4320, 4336, 4356, 4400, 0,
1511 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1512 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1513 /* 212 - 10240x4320@30Hz 64:27 */
1514 { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 1485000, 10240, 10528,
1515 10704, 11000, 0, 4320, 4336, 4356, 4500, 0,
1516 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1517 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1518 /* 213 - 10240x4320@48Hz 64:27 */
1519 { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 2970000, 10240, 11732,
1520 11908, 12500, 0, 4320, 4336, 4356, 4950, 0,
1521 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1522 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1523 /* 214 - 10240x4320@50Hz 64:27 */
1524 { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 2970000, 10240, 12732,
1525 12908, 13500, 0, 4320, 4336, 4356, 4400, 0,
1526 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1527 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1528 /* 215 - 10240x4320@60Hz 64:27 */
1529 { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 2970000, 10240, 10528,
1530 10704, 11000, 0, 4320, 4336, 4356, 4500, 0,
1531 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1532 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1533 /* 216 - 10240x4320@100Hz 64:27 */
1534 { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 5940000, 10240, 12432,
1535 12608, 13200, 0, 4320, 4336, 4356, 4500, 0,
1536 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1537 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1538 /* 217 - 10240x4320@120Hz 64:27 */
1539 { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 5940000, 10240, 10528,
1540 10704, 11000, 0, 4320, 4336, 4356, 4500, 0,
1541 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1542 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1543 /* 218 - 4096x2160@100Hz 256:135 */
1544 { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 1188000, 4096, 4896,
1545 4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1546 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1547 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1548 /* 219 - 4096x2160@120Hz 256:135 */
1549 { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 1188000, 4096, 4184,
1550 4272, 4400, 0, 2160, 2168, 2178, 2250, 0,
1551 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1552 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1553 };
1554
1555 /*
1556 * HDMI 1.4 4k modes. Index using the VIC.
1557 */
1558 static const struct drm_display_mode edid_4k_modes[] = {
1559 /* 0 - dummy, VICs start at 1 */
1560 { },
1561 /* 1 - 3840x2160@30Hz */
1562 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000,
1563 3840, 4016, 4104, 4400, 0,
1564 2160, 2168, 2178, 2250, 0,
1565 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1566 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1567 /* 2 - 3840x2160@25Hz */
1568 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000,
1569 3840, 4896, 4984, 5280, 0,
1570 2160, 2168, 2178, 2250, 0,
1571 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1572 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1573 /* 3 - 3840x2160@24Hz */
1574 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000,
1575 3840, 5116, 5204, 5500, 0,
1576 2160, 2168, 2178, 2250, 0,
1577 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1578 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1579 /* 4 - 4096x2160@24Hz (SMPTE) */
1580 { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 297000,
1581 4096, 5116, 5204, 5500, 0,
1582 2160, 2168, 2178, 2250, 0,
1583 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1584 .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1585 };
1586
1587 /*** DDC fetch and block validation ***/
1588
1589 /*
1590 * The opaque EDID type, internal to drm_edid.c.
1591 */
1592 struct drm_edid {
1593 /* Size allocated for edid */
1594 size_t size;
1595 const struct edid *edid;
1596 };
1597
1598 static int edid_hfeeodb_extension_block_count(const struct edid *edid);
1599
edid_hfeeodb_block_count(const struct edid * edid)1600 static int edid_hfeeodb_block_count(const struct edid *edid)
1601 {
1602 int eeodb = edid_hfeeodb_extension_block_count(edid);
1603
1604 return eeodb ? eeodb + 1 : 0;
1605 }
1606
edid_extension_block_count(const struct edid * edid)1607 static int edid_extension_block_count(const struct edid *edid)
1608 {
1609 return edid->extensions;
1610 }
1611
edid_block_count(const struct edid * edid)1612 static int edid_block_count(const struct edid *edid)
1613 {
1614 return edid_extension_block_count(edid) + 1;
1615 }
1616
edid_size_by_blocks(int num_blocks)1617 static int edid_size_by_blocks(int num_blocks)
1618 {
1619 return num_blocks * EDID_LENGTH;
1620 }
1621
edid_size(const struct edid * edid)1622 static int edid_size(const struct edid *edid)
1623 {
1624 return edid_size_by_blocks(edid_block_count(edid));
1625 }
1626
edid_block_data(const struct edid * edid,int index)1627 static const void *edid_block_data(const struct edid *edid, int index)
1628 {
1629 BUILD_BUG_ON(sizeof(*edid) != EDID_LENGTH);
1630
1631 return edid + index;
1632 }
1633
edid_extension_block_data(const struct edid * edid,int index)1634 static const void *edid_extension_block_data(const struct edid *edid, int index)
1635 {
1636 return edid_block_data(edid, index + 1);
1637 }
1638
1639 /* EDID block count indicated in EDID, may exceed allocated size */
__drm_edid_block_count(const struct drm_edid * drm_edid)1640 static int __drm_edid_block_count(const struct drm_edid *drm_edid)
1641 {
1642 int num_blocks;
1643
1644 /* Starting point */
1645 num_blocks = edid_block_count(drm_edid->edid);
1646
1647 /* HF-EEODB override */
1648 if (drm_edid->size >= edid_size_by_blocks(2)) {
1649 int eeodb;
1650
1651 /*
1652 * Note: HF-EEODB may specify a smaller extension count than the
1653 * regular one. Unlike in buffer allocation, here we can use it.
1654 */
1655 eeodb = edid_hfeeodb_block_count(drm_edid->edid);
1656 if (eeodb)
1657 num_blocks = eeodb;
1658 }
1659
1660 return num_blocks;
1661 }
1662
1663 /* EDID block count, limited by allocated size */
drm_edid_block_count(const struct drm_edid * drm_edid)1664 static int drm_edid_block_count(const struct drm_edid *drm_edid)
1665 {
1666 /* Limit by allocated size */
1667 return min(__drm_edid_block_count(drm_edid),
1668 (int)drm_edid->size / EDID_LENGTH);
1669 }
1670
1671 /* EDID extension block count, limited by allocated size */
drm_edid_extension_block_count(const struct drm_edid * drm_edid)1672 static int drm_edid_extension_block_count(const struct drm_edid *drm_edid)
1673 {
1674 return drm_edid_block_count(drm_edid) - 1;
1675 }
1676
drm_edid_block_data(const struct drm_edid * drm_edid,int index)1677 static const void *drm_edid_block_data(const struct drm_edid *drm_edid, int index)
1678 {
1679 return edid_block_data(drm_edid->edid, index);
1680 }
1681
drm_edid_extension_block_data(const struct drm_edid * drm_edid,int index)1682 static const void *drm_edid_extension_block_data(const struct drm_edid *drm_edid,
1683 int index)
1684 {
1685 return edid_extension_block_data(drm_edid->edid, index);
1686 }
1687
1688 /*
1689 * Initializer helper for legacy interfaces, where we have no choice but to
1690 * trust edid size. Not for general purpose use.
1691 */
drm_edid_legacy_init(struct drm_edid * drm_edid,const struct edid * edid)1692 static const struct drm_edid *drm_edid_legacy_init(struct drm_edid *drm_edid,
1693 const struct edid *edid)
1694 {
1695 if (!edid)
1696 return NULL;
1697
1698 memset(drm_edid, 0, sizeof(*drm_edid));
1699
1700 drm_edid->edid = edid;
1701 drm_edid->size = edid_size(edid);
1702
1703 return drm_edid;
1704 }
1705
1706 /*
1707 * EDID base and extension block iterator.
1708 *
1709 * struct drm_edid_iter iter;
1710 * const u8 *block;
1711 *
1712 * drm_edid_iter_begin(drm_edid, &iter);
1713 * drm_edid_iter_for_each(block, &iter) {
1714 * // do stuff with block
1715 * }
1716 * drm_edid_iter_end(&iter);
1717 */
1718 struct drm_edid_iter {
1719 const struct drm_edid *drm_edid;
1720
1721 /* Current block index. */
1722 int index;
1723 };
1724
drm_edid_iter_begin(const struct drm_edid * drm_edid,struct drm_edid_iter * iter)1725 static void drm_edid_iter_begin(const struct drm_edid *drm_edid,
1726 struct drm_edid_iter *iter)
1727 {
1728 memset(iter, 0, sizeof(*iter));
1729
1730 iter->drm_edid = drm_edid;
1731 }
1732
__drm_edid_iter_next(struct drm_edid_iter * iter)1733 static const void *__drm_edid_iter_next(struct drm_edid_iter *iter)
1734 {
1735 const void *block = NULL;
1736
1737 if (!iter->drm_edid)
1738 return NULL;
1739
1740 if (iter->index < drm_edid_block_count(iter->drm_edid))
1741 block = drm_edid_block_data(iter->drm_edid, iter->index++);
1742
1743 return block;
1744 }
1745
1746 #define drm_edid_iter_for_each(__block, __iter) \
1747 while (((__block) = __drm_edid_iter_next(__iter)))
1748
drm_edid_iter_end(struct drm_edid_iter * iter)1749 static void drm_edid_iter_end(struct drm_edid_iter *iter)
1750 {
1751 memset(iter, 0, sizeof(*iter));
1752 }
1753
1754 static const u8 edid_header[] = {
1755 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00
1756 };
1757
edid_header_fix(void * edid)1758 static void edid_header_fix(void *edid)
1759 {
1760 memcpy(edid, edid_header, sizeof(edid_header));
1761 }
1762
1763 /**
1764 * drm_edid_header_is_valid - sanity check the header of the base EDID block
1765 * @_edid: pointer to raw base EDID block
1766 *
1767 * Sanity check the header of the base EDID block.
1768 *
1769 * Return: 8 if the header is perfect, down to 0 if it's totally wrong.
1770 */
drm_edid_header_is_valid(const void * _edid)1771 int drm_edid_header_is_valid(const void *_edid)
1772 {
1773 const struct edid *edid = _edid;
1774 int i, score = 0;
1775
1776 for (i = 0; i < sizeof(edid_header); i++) {
1777 if (edid->header[i] == edid_header[i])
1778 score++;
1779 }
1780
1781 return score;
1782 }
1783 EXPORT_SYMBOL(drm_edid_header_is_valid);
1784
1785 static int edid_fixup __read_mostly = 6;
1786 module_param_named(edid_fixup, edid_fixup, int, 0400);
1787 MODULE_PARM_DESC(edid_fixup,
1788 "Minimum number of valid EDID header bytes (0-8, default 6)");
1789
edid_block_compute_checksum(const void * _block)1790 static int edid_block_compute_checksum(const void *_block)
1791 {
1792 const u8 *block = _block;
1793 int i;
1794 u8 csum = 0, crc = 0;
1795
1796 for (i = 0; i < EDID_LENGTH - 1; i++)
1797 csum += block[i];
1798
1799 crc = 0x100 - csum;
1800
1801 return crc;
1802 }
1803
edid_block_get_checksum(const void * _block)1804 static int edid_block_get_checksum(const void *_block)
1805 {
1806 const struct edid *block = _block;
1807
1808 return block->checksum;
1809 }
1810
edid_block_tag(const void * _block)1811 static int edid_block_tag(const void *_block)
1812 {
1813 const u8 *block = _block;
1814
1815 return block[0];
1816 }
1817
edid_block_is_zero(const void * edid)1818 static bool edid_block_is_zero(const void *edid)
1819 {
1820 return mem_is_zero(edid, EDID_LENGTH);
1821 }
1822
drm_edid_eq(const struct drm_edid * drm_edid,const void * raw_edid,size_t raw_edid_size)1823 static bool drm_edid_eq(const struct drm_edid *drm_edid,
1824 const void *raw_edid, size_t raw_edid_size)
1825 {
1826 bool edid1_present = drm_edid && drm_edid->edid && drm_edid->size;
1827 bool edid2_present = raw_edid && raw_edid_size;
1828
1829 if (edid1_present != edid2_present)
1830 return false;
1831
1832 if (edid1_present) {
1833 if (drm_edid->size != raw_edid_size)
1834 return false;
1835
1836 if (memcmp(drm_edid->edid, raw_edid, drm_edid->size))
1837 return false;
1838 }
1839
1840 return true;
1841 }
1842
1843 enum edid_block_status {
1844 EDID_BLOCK_OK = 0,
1845 EDID_BLOCK_READ_FAIL,
1846 EDID_BLOCK_NULL,
1847 EDID_BLOCK_ZERO,
1848 EDID_BLOCK_HEADER_CORRUPT,
1849 EDID_BLOCK_HEADER_REPAIR,
1850 EDID_BLOCK_HEADER_FIXED,
1851 EDID_BLOCK_CHECKSUM,
1852 EDID_BLOCK_VERSION,
1853 };
1854
edid_block_check(const void * _block,bool is_base_block)1855 static enum edid_block_status edid_block_check(const void *_block,
1856 bool is_base_block)
1857 {
1858 const struct edid *block = _block;
1859
1860 if (!block)
1861 return EDID_BLOCK_NULL;
1862
1863 if (is_base_block) {
1864 int score = drm_edid_header_is_valid(block);
1865
1866 if (score < clamp(edid_fixup, 0, 8)) {
1867 if (edid_block_is_zero(block))
1868 return EDID_BLOCK_ZERO;
1869 else
1870 return EDID_BLOCK_HEADER_CORRUPT;
1871 }
1872
1873 if (score < 8)
1874 return EDID_BLOCK_HEADER_REPAIR;
1875 }
1876
1877 if (edid_block_compute_checksum(block) != edid_block_get_checksum(block)) {
1878 if (edid_block_is_zero(block))
1879 return EDID_BLOCK_ZERO;
1880 else
1881 return EDID_BLOCK_CHECKSUM;
1882 }
1883
1884 if (is_base_block) {
1885 if (block->version != 1)
1886 return EDID_BLOCK_VERSION;
1887 }
1888
1889 return EDID_BLOCK_OK;
1890 }
1891
edid_block_status_valid(enum edid_block_status status,int tag)1892 static bool edid_block_status_valid(enum edid_block_status status, int tag)
1893 {
1894 return status == EDID_BLOCK_OK ||
1895 status == EDID_BLOCK_HEADER_FIXED ||
1896 (status == EDID_BLOCK_CHECKSUM && tag == CEA_EXT);
1897 }
1898
edid_block_valid(const void * block,bool base)1899 static bool edid_block_valid(const void *block, bool base)
1900 {
1901 return edid_block_status_valid(edid_block_check(block, base),
1902 edid_block_tag(block));
1903 }
1904
edid_block_status_print(enum edid_block_status status,const struct edid * block,int block_num)1905 static void edid_block_status_print(enum edid_block_status status,
1906 const struct edid *block,
1907 int block_num)
1908 {
1909 switch (status) {
1910 case EDID_BLOCK_OK:
1911 break;
1912 case EDID_BLOCK_READ_FAIL:
1913 pr_debug("EDID block %d read failed\n", block_num);
1914 break;
1915 case EDID_BLOCK_NULL:
1916 pr_debug("EDID block %d pointer is NULL\n", block_num);
1917 break;
1918 case EDID_BLOCK_ZERO:
1919 pr_notice("EDID block %d is all zeroes\n", block_num);
1920 break;
1921 case EDID_BLOCK_HEADER_CORRUPT:
1922 pr_notice("EDID has corrupt header\n");
1923 break;
1924 case EDID_BLOCK_HEADER_REPAIR:
1925 pr_debug("EDID corrupt header needs repair\n");
1926 break;
1927 case EDID_BLOCK_HEADER_FIXED:
1928 pr_debug("EDID corrupt header fixed\n");
1929 break;
1930 case EDID_BLOCK_CHECKSUM:
1931 if (edid_block_status_valid(status, edid_block_tag(block))) {
1932 pr_debug("EDID block %d (tag 0x%02x) checksum is invalid, remainder is %d, ignoring\n",
1933 block_num, edid_block_tag(block),
1934 edid_block_compute_checksum(block));
1935 } else {
1936 pr_notice("EDID block %d (tag 0x%02x) checksum is invalid, remainder is %d\n",
1937 block_num, edid_block_tag(block),
1938 edid_block_compute_checksum(block));
1939 }
1940 break;
1941 case EDID_BLOCK_VERSION:
1942 pr_notice("EDID has major version %d, instead of 1\n",
1943 block->version);
1944 break;
1945 default:
1946 WARN(1, "EDID block %d unknown edid block status code %d\n",
1947 block_num, status);
1948 break;
1949 }
1950 }
1951
edid_block_dump(const char * level,const void * block,int block_num)1952 static void edid_block_dump(const char *level, const void *block, int block_num)
1953 {
1954 enum edid_block_status status;
1955 char prefix[20];
1956
1957 status = edid_block_check(block, block_num == 0);
1958 if (status == EDID_BLOCK_ZERO)
1959 sprintf(prefix, "\t[%02x] ZERO ", block_num);
1960 else if (!edid_block_status_valid(status, edid_block_tag(block)))
1961 sprintf(prefix, "\t[%02x] BAD ", block_num);
1962 else
1963 sprintf(prefix, "\t[%02x] GOOD ", block_num);
1964
1965 print_hex_dump(level, prefix, DUMP_PREFIX_NONE, 16, 1,
1966 block, EDID_LENGTH, false);
1967 }
1968
1969 /*
1970 * Validate a base or extension EDID block and optionally dump bad blocks to
1971 * the console.
1972 */
drm_edid_block_valid(void * _block,int block_num,bool print_bad_edid,bool * edid_corrupt)1973 static bool drm_edid_block_valid(void *_block, int block_num, bool print_bad_edid,
1974 bool *edid_corrupt)
1975 {
1976 struct edid *block = _block;
1977 enum edid_block_status status;
1978 bool is_base_block = block_num == 0;
1979 bool valid;
1980
1981 if (WARN_ON(!block))
1982 return false;
1983
1984 status = edid_block_check(block, is_base_block);
1985 if (status == EDID_BLOCK_HEADER_REPAIR) {
1986 DRM_DEBUG_KMS("Fixing EDID header, your hardware may be failing\n");
1987 edid_header_fix(block);
1988
1989 /* Retry with fixed header, update status if that worked. */
1990 status = edid_block_check(block, is_base_block);
1991 if (status == EDID_BLOCK_OK)
1992 status = EDID_BLOCK_HEADER_FIXED;
1993 }
1994
1995 if (edid_corrupt) {
1996 /*
1997 * Unknown major version isn't corrupt but we can't use it. Only
1998 * the base block can reset edid_corrupt to false.
1999 */
2000 if (is_base_block &&
2001 (status == EDID_BLOCK_OK || status == EDID_BLOCK_VERSION))
2002 *edid_corrupt = false;
2003 else if (status != EDID_BLOCK_OK)
2004 *edid_corrupt = true;
2005 }
2006
2007 edid_block_status_print(status, block, block_num);
2008
2009 /* Determine whether we can use this block with this status. */
2010 valid = edid_block_status_valid(status, edid_block_tag(block));
2011
2012 if (!valid && print_bad_edid && status != EDID_BLOCK_ZERO) {
2013 pr_notice("Raw EDID:\n");
2014 edid_block_dump(KERN_NOTICE, block, block_num);
2015 }
2016
2017 return valid;
2018 }
2019
2020 /**
2021 * drm_edid_is_valid - sanity check EDID data
2022 * @edid: EDID data
2023 *
2024 * Sanity-check an entire EDID record (including extensions)
2025 *
2026 * Return: True if the EDID data is valid, false otherwise.
2027 */
drm_edid_is_valid(struct edid * edid)2028 bool drm_edid_is_valid(struct edid *edid)
2029 {
2030 int i;
2031
2032 if (!edid)
2033 return false;
2034
2035 for (i = 0; i < edid_block_count(edid); i++) {
2036 void *block = (void *)edid_block_data(edid, i);
2037
2038 if (!drm_edid_block_valid(block, i, true, NULL))
2039 return false;
2040 }
2041
2042 return true;
2043 }
2044 EXPORT_SYMBOL(drm_edid_is_valid);
2045
2046 /**
2047 * drm_edid_valid - sanity check EDID data
2048 * @drm_edid: EDID data
2049 *
2050 * Sanity check an EDID. Cross check block count against allocated size and
2051 * checksum the blocks.
2052 *
2053 * Return: True if the EDID data is valid, false otherwise.
2054 */
drm_edid_valid(const struct drm_edid * drm_edid)2055 bool drm_edid_valid(const struct drm_edid *drm_edid)
2056 {
2057 int i;
2058
2059 if (!drm_edid)
2060 return false;
2061
2062 if (edid_size_by_blocks(__drm_edid_block_count(drm_edid)) != drm_edid->size)
2063 return false;
2064
2065 for (i = 0; i < drm_edid_block_count(drm_edid); i++) {
2066 const void *block = drm_edid_block_data(drm_edid, i);
2067
2068 if (!edid_block_valid(block, i == 0))
2069 return false;
2070 }
2071
2072 return true;
2073 }
2074 EXPORT_SYMBOL(drm_edid_valid);
2075
edid_filter_invalid_blocks(struct edid * edid,size_t * alloc_size)2076 static struct edid *edid_filter_invalid_blocks(struct edid *edid,
2077 size_t *alloc_size)
2078 {
2079 struct edid *new;
2080 int i, valid_blocks = 0;
2081
2082 /*
2083 * Note: If the EDID uses HF-EEODB, but has invalid blocks, we'll revert
2084 * back to regular extension count here. We don't want to start
2085 * modifying the HF-EEODB extension too.
2086 */
2087 for (i = 0; i < edid_block_count(edid); i++) {
2088 const void *src_block = edid_block_data(edid, i);
2089
2090 if (edid_block_valid(src_block, i == 0)) {
2091 void *dst_block = (void *)edid_block_data(edid, valid_blocks);
2092
2093 memmove(dst_block, src_block, EDID_LENGTH);
2094 valid_blocks++;
2095 }
2096 }
2097
2098 /* We already trusted the base block to be valid here... */
2099 if (WARN_ON(!valid_blocks)) {
2100 kfree(edid);
2101 return NULL;
2102 }
2103
2104 edid->extensions = valid_blocks - 1;
2105 edid->checksum = edid_block_compute_checksum(edid);
2106
2107 *alloc_size = edid_size_by_blocks(valid_blocks);
2108
2109 new = krealloc(edid, *alloc_size, GFP_KERNEL);
2110 if (!new)
2111 kfree(edid);
2112
2113 return new;
2114 }
2115
2116 #define DDC_SEGMENT_ADDR 0x30
2117 /**
2118 * drm_do_probe_ddc_edid() - get EDID information via I2C
2119 * @data: I2C device adapter
2120 * @buf: EDID data buffer to be filled
2121 * @block: 128 byte EDID block to start fetching from
2122 * @len: EDID data buffer length to fetch
2123 *
2124 * Try to fetch EDID information by calling I2C driver functions.
2125 *
2126 * Return: 0 on success or -1 on failure.
2127 */
2128 static int
drm_do_probe_ddc_edid(void * data,u8 * buf,unsigned int block,size_t len)2129 drm_do_probe_ddc_edid(void *data, u8 *buf, unsigned int block, size_t len)
2130 {
2131 struct i2c_adapter *adapter = data;
2132 unsigned char start = block * EDID_LENGTH;
2133 unsigned char segment = block >> 1;
2134 unsigned char xfers = segment ? 3 : 2;
2135 int ret, retries = 5;
2136
2137 /*
2138 * The core I2C driver will automatically retry the transfer if the
2139 * adapter reports EAGAIN. However, we find that bit-banging transfers
2140 * are susceptible to errors under a heavily loaded machine and
2141 * generate spurious NAKs and timeouts. Retrying the transfer
2142 * of the individual block a few times seems to overcome this.
2143 */
2144 do {
2145 struct i2c_msg msgs[] = {
2146 {
2147 .addr = DDC_SEGMENT_ADDR,
2148 .flags = 0,
2149 .len = 1,
2150 .buf = &segment,
2151 }, {
2152 .addr = DDC_ADDR,
2153 .flags = 0,
2154 .len = 1,
2155 .buf = &start,
2156 }, {
2157 .addr = DDC_ADDR,
2158 .flags = I2C_M_RD,
2159 .len = len,
2160 .buf = buf,
2161 }
2162 };
2163
2164 /*
2165 * Avoid sending the segment addr to not upset non-compliant
2166 * DDC monitors.
2167 */
2168 ret = i2c_transfer(adapter, &msgs[3 - xfers], xfers);
2169
2170 if (ret == -ENXIO) {
2171 DRM_DEBUG_KMS("drm: skipping non-existent adapter %s\n",
2172 adapter->name);
2173 break;
2174 }
2175 } while (ret != xfers && --retries);
2176
2177 return ret == xfers ? 0 : -1;
2178 }
2179
connector_bad_edid(struct drm_connector * connector,const struct edid * edid,int num_blocks)2180 static void connector_bad_edid(struct drm_connector *connector,
2181 const struct edid *edid, int num_blocks)
2182 {
2183 int i;
2184 u8 last_block;
2185
2186 /*
2187 * 0x7e in the EDID is the number of extension blocks. The EDID
2188 * is 1 (base block) + num_ext_blocks big. That means we can think
2189 * of 0x7e in the EDID of the _index_ of the last block in the
2190 * combined chunk of memory.
2191 */
2192 last_block = edid->extensions;
2193
2194 /* Calculate real checksum for the last edid extension block data */
2195 if (last_block < num_blocks)
2196 connector->real_edid_checksum =
2197 edid_block_compute_checksum(edid + last_block);
2198
2199 if (connector->bad_edid_counter++ && !drm_debug_enabled(DRM_UT_KMS))
2200 return;
2201
2202 drm_dbg_kms(connector->dev, "[CONNECTOR:%d:%s] EDID is invalid:\n",
2203 connector->base.id, connector->name);
2204 for (i = 0; i < num_blocks; i++)
2205 edid_block_dump(KERN_DEBUG, edid + i, i);
2206 }
2207
2208 /* Get override or firmware EDID */
drm_edid_override_get(struct drm_connector * connector)2209 static const struct drm_edid *drm_edid_override_get(struct drm_connector *connector)
2210 {
2211 const struct drm_edid *override = NULL;
2212
2213 mutex_lock(&connector->edid_override_mutex);
2214
2215 if (connector->edid_override)
2216 override = drm_edid_dup(connector->edid_override);
2217
2218 mutex_unlock(&connector->edid_override_mutex);
2219
2220 if (!override)
2221 override = drm_edid_load_firmware(connector);
2222
2223 return IS_ERR(override) ? NULL : override;
2224 }
2225
2226 /* For debugfs edid_override implementation */
drm_edid_override_show(struct drm_connector * connector,struct seq_file * m)2227 int drm_edid_override_show(struct drm_connector *connector, struct seq_file *m)
2228 {
2229 const struct drm_edid *drm_edid;
2230
2231 mutex_lock(&connector->edid_override_mutex);
2232
2233 drm_edid = connector->edid_override;
2234 if (drm_edid)
2235 seq_write(m, drm_edid->edid, drm_edid->size);
2236
2237 mutex_unlock(&connector->edid_override_mutex);
2238
2239 return 0;
2240 }
2241
2242 /* For debugfs edid_override implementation */
drm_edid_override_set(struct drm_connector * connector,const void * edid,size_t size)2243 int drm_edid_override_set(struct drm_connector *connector, const void *edid,
2244 size_t size)
2245 {
2246 const struct drm_edid *drm_edid;
2247
2248 drm_edid = drm_edid_alloc(edid, size);
2249 if (!drm_edid_valid(drm_edid)) {
2250 drm_dbg_kms(connector->dev, "[CONNECTOR:%d:%s] EDID override invalid\n",
2251 connector->base.id, connector->name);
2252 drm_edid_free(drm_edid);
2253 return -EINVAL;
2254 }
2255
2256 drm_dbg_kms(connector->dev, "[CONNECTOR:%d:%s] EDID override set\n",
2257 connector->base.id, connector->name);
2258
2259 mutex_lock(&connector->edid_override_mutex);
2260
2261 drm_edid_free(connector->edid_override);
2262 connector->edid_override = drm_edid;
2263
2264 mutex_unlock(&connector->edid_override_mutex);
2265
2266 return 0;
2267 }
2268
2269 /* For debugfs edid_override implementation */
drm_edid_override_reset(struct drm_connector * connector)2270 int drm_edid_override_reset(struct drm_connector *connector)
2271 {
2272 drm_dbg_kms(connector->dev, "[CONNECTOR:%d:%s] EDID override reset\n",
2273 connector->base.id, connector->name);
2274
2275 mutex_lock(&connector->edid_override_mutex);
2276
2277 drm_edid_free(connector->edid_override);
2278 connector->edid_override = NULL;
2279
2280 mutex_unlock(&connector->edid_override_mutex);
2281
2282 return 0;
2283 }
2284
2285 /**
2286 * drm_edid_override_connector_update - add modes from override/firmware EDID
2287 * @connector: connector we're probing
2288 *
2289 * Add modes from the override/firmware EDID, if available. Only to be used from
2290 * drm_helper_probe_single_connector_modes() as a fallback for when DDC probe
2291 * failed during drm_get_edid() and caused the override/firmware EDID to be
2292 * skipped.
2293 *
2294 * Return: The number of modes added or 0 if we couldn't find any.
2295 */
drm_edid_override_connector_update(struct drm_connector * connector)2296 int drm_edid_override_connector_update(struct drm_connector *connector)
2297 {
2298 const struct drm_edid *override;
2299 int num_modes = 0;
2300
2301 override = drm_edid_override_get(connector);
2302 if (override) {
2303 if (drm_edid_connector_update(connector, override) == 0)
2304 num_modes = drm_edid_connector_add_modes(connector);
2305
2306 drm_edid_free(override);
2307
2308 drm_dbg_kms(connector->dev,
2309 "[CONNECTOR:%d:%s] adding %d modes via fallback override/firmware EDID\n",
2310 connector->base.id, connector->name, num_modes);
2311 }
2312
2313 return num_modes;
2314 }
2315 EXPORT_SYMBOL(drm_edid_override_connector_update);
2316
2317 typedef int read_block_fn(void *context, u8 *buf, unsigned int block, size_t len);
2318
edid_block_read(void * block,unsigned int block_num,read_block_fn read_block,void * context)2319 static enum edid_block_status edid_block_read(void *block, unsigned int block_num,
2320 read_block_fn read_block,
2321 void *context)
2322 {
2323 enum edid_block_status status;
2324 bool is_base_block = block_num == 0;
2325 int try;
2326
2327 for (try = 0; try < 4; try++) {
2328 if (read_block(context, block, block_num, EDID_LENGTH))
2329 return EDID_BLOCK_READ_FAIL;
2330
2331 status = edid_block_check(block, is_base_block);
2332 if (status == EDID_BLOCK_HEADER_REPAIR) {
2333 edid_header_fix(block);
2334
2335 /* Retry with fixed header, update status if that worked. */
2336 status = edid_block_check(block, is_base_block);
2337 if (status == EDID_BLOCK_OK)
2338 status = EDID_BLOCK_HEADER_FIXED;
2339 }
2340
2341 if (edid_block_status_valid(status, edid_block_tag(block)))
2342 break;
2343
2344 /* Fail early for unrepairable base block all zeros. */
2345 if (try == 0 && is_base_block && status == EDID_BLOCK_ZERO)
2346 break;
2347 }
2348
2349 return status;
2350 }
2351
_drm_do_get_edid(struct drm_connector * connector,read_block_fn read_block,void * context,size_t * size)2352 static struct edid *_drm_do_get_edid(struct drm_connector *connector,
2353 read_block_fn read_block, void *context,
2354 size_t *size)
2355 {
2356 enum edid_block_status status;
2357 int i, num_blocks, invalid_blocks = 0;
2358 const struct drm_edid *override;
2359 struct edid *edid, *new;
2360 size_t alloc_size = EDID_LENGTH;
2361
2362 override = drm_edid_override_get(connector);
2363 if (override) {
2364 alloc_size = override->size;
2365 edid = kmemdup(override->edid, alloc_size, GFP_KERNEL);
2366 drm_edid_free(override);
2367 if (!edid)
2368 return NULL;
2369 goto ok;
2370 }
2371
2372 edid = kmalloc(alloc_size, GFP_KERNEL);
2373 if (!edid)
2374 return NULL;
2375
2376 status = edid_block_read(edid, 0, read_block, context);
2377
2378 edid_block_status_print(status, edid, 0);
2379
2380 if (status == EDID_BLOCK_READ_FAIL)
2381 goto fail;
2382
2383 /* FIXME: Clarify what a corrupt EDID actually means. */
2384 if (status == EDID_BLOCK_OK || status == EDID_BLOCK_VERSION)
2385 connector->edid_corrupt = false;
2386 else
2387 connector->edid_corrupt = true;
2388
2389 if (!edid_block_status_valid(status, edid_block_tag(edid))) {
2390 if (status == EDID_BLOCK_ZERO)
2391 connector->null_edid_counter++;
2392
2393 connector_bad_edid(connector, edid, 1);
2394 goto fail;
2395 }
2396
2397 if (!edid_extension_block_count(edid))
2398 goto ok;
2399
2400 alloc_size = edid_size(edid);
2401 new = krealloc(edid, alloc_size, GFP_KERNEL);
2402 if (!new)
2403 goto fail;
2404 edid = new;
2405
2406 num_blocks = edid_block_count(edid);
2407 for (i = 1; i < num_blocks; i++) {
2408 void *block = (void *)edid_block_data(edid, i);
2409
2410 status = edid_block_read(block, i, read_block, context);
2411
2412 edid_block_status_print(status, block, i);
2413
2414 if (!edid_block_status_valid(status, edid_block_tag(block))) {
2415 if (status == EDID_BLOCK_READ_FAIL)
2416 goto fail;
2417 invalid_blocks++;
2418 } else if (i == 1) {
2419 /*
2420 * If the first EDID extension is a CTA extension, and
2421 * the first Data Block is HF-EEODB, override the
2422 * extension block count.
2423 *
2424 * Note: HF-EEODB could specify a smaller extension
2425 * count too, but we can't risk allocating a smaller
2426 * amount.
2427 */
2428 int eeodb = edid_hfeeodb_block_count(edid);
2429
2430 if (eeodb > num_blocks) {
2431 num_blocks = eeodb;
2432 alloc_size = edid_size_by_blocks(num_blocks);
2433 new = krealloc(edid, alloc_size, GFP_KERNEL);
2434 if (!new)
2435 goto fail;
2436 edid = new;
2437 }
2438 }
2439 }
2440
2441 if (invalid_blocks) {
2442 connector_bad_edid(connector, edid, num_blocks);
2443
2444 edid = edid_filter_invalid_blocks(edid, &alloc_size);
2445 }
2446
2447 ok:
2448 if (size)
2449 *size = alloc_size;
2450
2451 return edid;
2452
2453 fail:
2454 kfree(edid);
2455 return NULL;
2456 }
2457
2458 /**
2459 * drm_edid_raw - Get a pointer to the raw EDID data.
2460 * @drm_edid: drm_edid container
2461 *
2462 * Get a pointer to the raw EDID data.
2463 *
2464 * This is for transition only. Avoid using this like the plague.
2465 *
2466 * Return: Pointer to raw EDID data.
2467 */
drm_edid_raw(const struct drm_edid * drm_edid)2468 const struct edid *drm_edid_raw(const struct drm_edid *drm_edid)
2469 {
2470 if (!drm_edid || !drm_edid->size)
2471 return NULL;
2472
2473 /*
2474 * Do not return pointers where relying on EDID extension count would
2475 * lead to buffer overflow.
2476 */
2477 if (WARN_ON(edid_size(drm_edid->edid) > drm_edid->size))
2478 return NULL;
2479
2480 return drm_edid->edid;
2481 }
2482 EXPORT_SYMBOL(drm_edid_raw);
2483
2484 /* Allocate struct drm_edid container *without* duplicating the edid data */
_drm_edid_alloc(const void * edid,size_t size)2485 static const struct drm_edid *_drm_edid_alloc(const void *edid, size_t size)
2486 {
2487 struct drm_edid *drm_edid;
2488
2489 if (!edid || !size || size < EDID_LENGTH)
2490 return NULL;
2491
2492 drm_edid = kzalloc(sizeof(*drm_edid), GFP_KERNEL);
2493 if (drm_edid) {
2494 drm_edid->edid = edid;
2495 drm_edid->size = size;
2496 }
2497
2498 return drm_edid;
2499 }
2500
2501 /**
2502 * drm_edid_alloc - Allocate a new drm_edid container
2503 * @edid: Pointer to raw EDID data
2504 * @size: Size of memory allocated for EDID
2505 *
2506 * Allocate a new drm_edid container. Do not calculate edid size from edid, pass
2507 * the actual size that has been allocated for the data. There is no validation
2508 * of the raw EDID data against the size, but at least the EDID base block must
2509 * fit in the buffer.
2510 *
2511 * The returned pointer must be freed using drm_edid_free().
2512 *
2513 * Return: drm_edid container, or NULL on errors
2514 */
drm_edid_alloc(const void * edid,size_t size)2515 const struct drm_edid *drm_edid_alloc(const void *edid, size_t size)
2516 {
2517 const struct drm_edid *drm_edid;
2518
2519 if (!edid || !size || size < EDID_LENGTH)
2520 return NULL;
2521
2522 edid = kmemdup(edid, size, GFP_KERNEL);
2523 if (!edid)
2524 return NULL;
2525
2526 drm_edid = _drm_edid_alloc(edid, size);
2527 if (!drm_edid)
2528 kfree(edid);
2529
2530 return drm_edid;
2531 }
2532 EXPORT_SYMBOL(drm_edid_alloc);
2533
2534 /**
2535 * drm_edid_dup - Duplicate a drm_edid container
2536 * @drm_edid: EDID to duplicate
2537 *
2538 * The returned pointer must be freed using drm_edid_free().
2539 *
2540 * Returns: drm_edid container copy, or NULL on errors
2541 */
drm_edid_dup(const struct drm_edid * drm_edid)2542 const struct drm_edid *drm_edid_dup(const struct drm_edid *drm_edid)
2543 {
2544 if (!drm_edid)
2545 return NULL;
2546
2547 return drm_edid_alloc(drm_edid->edid, drm_edid->size);
2548 }
2549 EXPORT_SYMBOL(drm_edid_dup);
2550
2551 /**
2552 * drm_edid_free - Free the drm_edid container
2553 * @drm_edid: EDID to free
2554 */
drm_edid_free(const struct drm_edid * drm_edid)2555 void drm_edid_free(const struct drm_edid *drm_edid)
2556 {
2557 if (!drm_edid)
2558 return;
2559
2560 kfree(drm_edid->edid);
2561 kfree(drm_edid);
2562 }
2563 EXPORT_SYMBOL(drm_edid_free);
2564
2565 /**
2566 * drm_probe_ddc() - probe DDC presence
2567 * @adapter: I2C adapter to probe
2568 *
2569 * Return: True on success, false on failure.
2570 */
2571 bool
drm_probe_ddc(struct i2c_adapter * adapter)2572 drm_probe_ddc(struct i2c_adapter *adapter)
2573 {
2574 unsigned char out;
2575
2576 return (drm_do_probe_ddc_edid(adapter, &out, 0, 1) == 0);
2577 }
2578 EXPORT_SYMBOL(drm_probe_ddc);
2579
2580 /**
2581 * drm_get_edid - get EDID data, if available
2582 * @connector: connector we're probing
2583 * @adapter: I2C adapter to use for DDC
2584 *
2585 * Poke the given I2C channel to grab EDID data if possible. If found,
2586 * attach it to the connector.
2587 *
2588 * Return: Pointer to valid EDID or NULL if we couldn't find any.
2589 */
drm_get_edid(struct drm_connector * connector,struct i2c_adapter * adapter)2590 struct edid *drm_get_edid(struct drm_connector *connector,
2591 struct i2c_adapter *adapter)
2592 {
2593 struct edid *edid;
2594
2595 if (connector->force == DRM_FORCE_OFF)
2596 return NULL;
2597
2598 if (connector->force == DRM_FORCE_UNSPECIFIED && !drm_probe_ddc(adapter))
2599 return NULL;
2600
2601 edid = _drm_do_get_edid(connector, drm_do_probe_ddc_edid, adapter, NULL);
2602 drm_connector_update_edid_property(connector, edid);
2603 return edid;
2604 }
2605 EXPORT_SYMBOL(drm_get_edid);
2606
2607 /**
2608 * drm_edid_read_custom - Read EDID data using given EDID block read function
2609 * @connector: Connector to use
2610 * @read_block: EDID block read function
2611 * @context: Private data passed to the block read function
2612 *
2613 * When the I2C adapter connected to the DDC bus is hidden behind a device that
2614 * exposes a different interface to read EDID blocks this function can be used
2615 * to get EDID data using a custom block read function.
2616 *
2617 * As in the general case the DDC bus is accessible by the kernel at the I2C
2618 * level, drivers must make all reasonable efforts to expose it as an I2C
2619 * adapter and use drm_edid_read() or drm_edid_read_ddc() instead of abusing
2620 * this function.
2621 *
2622 * The EDID may be overridden using debugfs override_edid or firmware EDID
2623 * (drm_edid_load_firmware() and drm.edid_firmware parameter), in this priority
2624 * order. Having either of them bypasses actual EDID reads.
2625 *
2626 * The returned pointer must be freed using drm_edid_free().
2627 *
2628 * Return: Pointer to EDID, or NULL if probe/read failed.
2629 */
drm_edid_read_custom(struct drm_connector * connector,read_block_fn read_block,void * context)2630 const struct drm_edid *drm_edid_read_custom(struct drm_connector *connector,
2631 read_block_fn read_block,
2632 void *context)
2633 {
2634 const struct drm_edid *drm_edid;
2635 struct edid *edid;
2636 size_t size = 0;
2637
2638 edid = _drm_do_get_edid(connector, read_block, context, &size);
2639 if (!edid)
2640 return NULL;
2641
2642 /* Sanity check for now */
2643 drm_WARN_ON(connector->dev, !size);
2644
2645 drm_edid = _drm_edid_alloc(edid, size);
2646 if (!drm_edid)
2647 kfree(edid);
2648
2649 return drm_edid;
2650 }
2651 EXPORT_SYMBOL(drm_edid_read_custom);
2652
2653 /**
2654 * drm_edid_read_ddc - Read EDID data using given I2C adapter
2655 * @connector: Connector to use
2656 * @adapter: I2C adapter to use for DDC
2657 *
2658 * Read EDID using the given I2C adapter.
2659 *
2660 * The EDID may be overridden using debugfs override_edid or firmware EDID
2661 * (drm_edid_load_firmware() and drm.edid_firmware parameter), in this priority
2662 * order. Having either of them bypasses actual EDID reads.
2663 *
2664 * Prefer initializing connector->ddc with drm_connector_init_with_ddc() and
2665 * using drm_edid_read() instead of this function.
2666 *
2667 * The returned pointer must be freed using drm_edid_free().
2668 *
2669 * Return: Pointer to EDID, or NULL if probe/read failed.
2670 */
drm_edid_read_ddc(struct drm_connector * connector,struct i2c_adapter * adapter)2671 const struct drm_edid *drm_edid_read_ddc(struct drm_connector *connector,
2672 struct i2c_adapter *adapter)
2673 {
2674 const struct drm_edid *drm_edid;
2675
2676 if (connector->force == DRM_FORCE_OFF)
2677 return NULL;
2678
2679 if (connector->force == DRM_FORCE_UNSPECIFIED && !drm_probe_ddc(adapter))
2680 return NULL;
2681
2682 drm_edid = drm_edid_read_custom(connector, drm_do_probe_ddc_edid, adapter);
2683
2684 /* Note: Do *not* call connector updates here. */
2685
2686 return drm_edid;
2687 }
2688 EXPORT_SYMBOL(drm_edid_read_ddc);
2689
2690 /**
2691 * drm_edid_read - Read EDID data using connector's I2C adapter
2692 * @connector: Connector to use
2693 *
2694 * Read EDID using the connector's I2C adapter.
2695 *
2696 * The EDID may be overridden using debugfs override_edid or firmware EDID
2697 * (drm_edid_load_firmware() and drm.edid_firmware parameter), in this priority
2698 * order. Having either of them bypasses actual EDID reads.
2699 *
2700 * The returned pointer must be freed using drm_edid_free().
2701 *
2702 * Return: Pointer to EDID, or NULL if probe/read failed.
2703 */
drm_edid_read(struct drm_connector * connector)2704 const struct drm_edid *drm_edid_read(struct drm_connector *connector)
2705 {
2706 if (drm_WARN_ON(connector->dev, !connector->ddc))
2707 return NULL;
2708
2709 return drm_edid_read_ddc(connector, connector->ddc);
2710 }
2711 EXPORT_SYMBOL(drm_edid_read);
2712
2713 /**
2714 * drm_edid_get_product_id - Get the vendor and product identification
2715 * @drm_edid: EDID
2716 * @id: Where to place the product id
2717 */
drm_edid_get_product_id(const struct drm_edid * drm_edid,struct drm_edid_product_id * id)2718 void drm_edid_get_product_id(const struct drm_edid *drm_edid,
2719 struct drm_edid_product_id *id)
2720 {
2721 if (drm_edid && drm_edid->edid && drm_edid->size >= EDID_LENGTH)
2722 memcpy(id, &drm_edid->edid->product_id, sizeof(*id));
2723 else
2724 memset(id, 0, sizeof(*id));
2725 }
2726 EXPORT_SYMBOL(drm_edid_get_product_id);
2727
decode_date(struct seq_buf * s,const struct drm_edid_product_id * id)2728 static void decode_date(struct seq_buf *s, const struct drm_edid_product_id *id)
2729 {
2730 int week = id->week_of_manufacture;
2731 int year = id->year_of_manufacture + 1990;
2732
2733 if (week == 0xff)
2734 seq_buf_printf(s, "model year: %d", year);
2735 else if (!week)
2736 seq_buf_printf(s, "year of manufacture: %d", year);
2737 else
2738 seq_buf_printf(s, "week/year of manufacture: %d/%d", week, year);
2739 }
2740
2741 /**
2742 * drm_edid_print_product_id - Print decoded product id to printer
2743 * @p: drm printer
2744 * @id: EDID product id
2745 * @raw: If true, also print the raw hex
2746 *
2747 * See VESA E-EDID 1.4 section 3.4.
2748 */
drm_edid_print_product_id(struct drm_printer * p,const struct drm_edid_product_id * id,bool raw)2749 void drm_edid_print_product_id(struct drm_printer *p,
2750 const struct drm_edid_product_id *id, bool raw)
2751 {
2752 DECLARE_SEQ_BUF(date, 40);
2753 char vend[4];
2754
2755 drm_edid_decode_mfg_id(be16_to_cpu(id->manufacturer_name), vend);
2756
2757 decode_date(&date, id);
2758
2759 drm_printf(p, "manufacturer name: %s, product code: %u, serial number: %u, %s\n",
2760 vend, le16_to_cpu(id->product_code),
2761 le32_to_cpu(id->serial_number), seq_buf_str(&date));
2762
2763 if (raw)
2764 drm_printf(p, "raw product id: %*ph\n", (int)sizeof(*id), id);
2765
2766 WARN_ON(seq_buf_has_overflowed(&date));
2767 }
2768 EXPORT_SYMBOL(drm_edid_print_product_id);
2769
2770 /**
2771 * drm_edid_get_panel_id - Get a panel's ID from EDID
2772 * @drm_edid: EDID that contains panel ID.
2773 *
2774 * This function uses the first block of the EDID of a panel and (assuming
2775 * that the EDID is valid) extracts the ID out of it. The ID is a 32-bit value
2776 * (16 bits of manufacturer ID and 16 bits of per-manufacturer ID) that's
2777 * supposed to be different for each different modem of panel.
2778 *
2779 * Return: A 32-bit ID that should be different for each make/model of panel.
2780 * See the functions drm_edid_encode_panel_id() and
2781 * drm_edid_decode_panel_id() for some details on the structure of this
2782 * ID. Return 0 if the EDID size is less than a base block.
2783 */
drm_edid_get_panel_id(const struct drm_edid * drm_edid)2784 u32 drm_edid_get_panel_id(const struct drm_edid *drm_edid)
2785 {
2786 const struct edid *edid = drm_edid->edid;
2787
2788 if (drm_edid->size < EDID_LENGTH)
2789 return 0;
2790
2791 /*
2792 * We represent the ID as a 32-bit number so it can easily be compared
2793 * with "==".
2794 *
2795 * NOTE that we deal with endianness differently for the top half
2796 * of this ID than for the bottom half. The bottom half (the product
2797 * id) gets decoded as little endian by the EDID_PRODUCT_ID because
2798 * that's how everyone seems to interpret it. The top half (the mfg_id)
2799 * gets stored as big endian because that makes
2800 * drm_edid_encode_panel_id() and drm_edid_decode_panel_id() easier
2801 * to write (it's easier to extract the ASCII). It doesn't really
2802 * matter, though, as long as the number here is unique.
2803 */
2804 return (u32)edid->mfg_id[0] << 24 |
2805 (u32)edid->mfg_id[1] << 16 |
2806 (u32)EDID_PRODUCT_ID(edid);
2807 }
2808 EXPORT_SYMBOL(drm_edid_get_panel_id);
2809
2810 /**
2811 * drm_edid_read_base_block - Get a panel's EDID base block
2812 * @adapter: I2C adapter to use for DDC
2813 *
2814 * This function returns the drm_edid containing the first block of the EDID of
2815 * a panel.
2816 *
2817 * This function is intended to be used during early probing on devices where
2818 * more than one panel might be present. Because of its intended use it must
2819 * assume that the EDID of the panel is correct, at least as far as the base
2820 * block is concerned (in other words, we don't process any overrides here).
2821 *
2822 * Caller should call drm_edid_free() after use.
2823 *
2824 * NOTE: it's expected that this function and drm_do_get_edid() will both
2825 * be read the EDID, but there is no caching between them. Since we're only
2826 * reading the first block, hopefully this extra overhead won't be too big.
2827 *
2828 * WARNING: Only use this function when the connector is unknown. For example,
2829 * during the early probe of panel. The EDID read from the function is temporary
2830 * and should be replaced by the full EDID returned from other drm_edid_read.
2831 *
2832 * Return: Pointer to allocated EDID base block, or NULL on any failure.
2833 */
drm_edid_read_base_block(struct i2c_adapter * adapter)2834 const struct drm_edid *drm_edid_read_base_block(struct i2c_adapter *adapter)
2835 {
2836 enum edid_block_status status;
2837 void *base_block;
2838
2839 base_block = kzalloc(EDID_LENGTH, GFP_KERNEL);
2840 if (!base_block)
2841 return NULL;
2842
2843 status = edid_block_read(base_block, 0, drm_do_probe_ddc_edid, adapter);
2844
2845 edid_block_status_print(status, base_block, 0);
2846
2847 if (!edid_block_status_valid(status, edid_block_tag(base_block))) {
2848 edid_block_dump(KERN_NOTICE, base_block, 0);
2849 kfree(base_block);
2850 return NULL;
2851 }
2852
2853 return _drm_edid_alloc(base_block, EDID_LENGTH);
2854 }
2855 EXPORT_SYMBOL(drm_edid_read_base_block);
2856
2857 /**
2858 * drm_get_edid_switcheroo - get EDID data for a vga_switcheroo output
2859 * @connector: connector we're probing
2860 * @adapter: I2C adapter to use for DDC
2861 *
2862 * Wrapper around drm_get_edid() for laptops with dual GPUs using one set of
2863 * outputs. The wrapper adds the requisite vga_switcheroo calls to temporarily
2864 * switch DDC to the GPU which is retrieving EDID.
2865 *
2866 * Return: Pointer to valid EDID or %NULL if we couldn't find any.
2867 */
drm_get_edid_switcheroo(struct drm_connector * connector,struct i2c_adapter * adapter)2868 struct edid *drm_get_edid_switcheroo(struct drm_connector *connector,
2869 struct i2c_adapter *adapter)
2870 {
2871 struct drm_device *dev = connector->dev;
2872 struct pci_dev *pdev = to_pci_dev(dev->dev);
2873 struct edid *edid;
2874
2875 if (drm_WARN_ON_ONCE(dev, !dev_is_pci(dev->dev)))
2876 return NULL;
2877
2878 vga_switcheroo_lock_ddc(pdev);
2879 edid = drm_get_edid(connector, adapter);
2880 vga_switcheroo_unlock_ddc(pdev);
2881
2882 return edid;
2883 }
2884 EXPORT_SYMBOL(drm_get_edid_switcheroo);
2885
2886 /**
2887 * drm_edid_read_switcheroo - get EDID data for a vga_switcheroo output
2888 * @connector: connector we're probing
2889 * @adapter: I2C adapter to use for DDC
2890 *
2891 * Wrapper around drm_edid_read_ddc() for laptops with dual GPUs using one set
2892 * of outputs. The wrapper adds the requisite vga_switcheroo calls to
2893 * temporarily switch DDC to the GPU which is retrieving EDID.
2894 *
2895 * Return: Pointer to valid EDID or %NULL if we couldn't find any.
2896 */
drm_edid_read_switcheroo(struct drm_connector * connector,struct i2c_adapter * adapter)2897 const struct drm_edid *drm_edid_read_switcheroo(struct drm_connector *connector,
2898 struct i2c_adapter *adapter)
2899 {
2900 struct drm_device *dev = connector->dev;
2901 struct pci_dev *pdev = to_pci_dev(dev->dev);
2902 const struct drm_edid *drm_edid;
2903
2904 if (drm_WARN_ON_ONCE(dev, !dev_is_pci(dev->dev)))
2905 return NULL;
2906
2907 vga_switcheroo_lock_ddc(pdev);
2908 drm_edid = drm_edid_read_ddc(connector, adapter);
2909 vga_switcheroo_unlock_ddc(pdev);
2910
2911 return drm_edid;
2912 }
2913 EXPORT_SYMBOL(drm_edid_read_switcheroo);
2914
2915 /**
2916 * drm_edid_duplicate - duplicate an EDID and the extensions
2917 * @edid: EDID to duplicate
2918 *
2919 * Return: Pointer to duplicated EDID or NULL on allocation failure.
2920 */
drm_edid_duplicate(const struct edid * edid)2921 struct edid *drm_edid_duplicate(const struct edid *edid)
2922 {
2923 if (!edid)
2924 return NULL;
2925
2926 return kmemdup(edid, edid_size(edid), GFP_KERNEL);
2927 }
2928 EXPORT_SYMBOL(drm_edid_duplicate);
2929
2930 /*** EDID parsing ***/
2931
2932 /**
2933 * edid_get_quirks - return quirk flags for a given EDID
2934 * @drm_edid: EDID to process
2935 *
2936 * This tells subsequent routines what fixes they need to apply.
2937 *
2938 * Return: A u32 represents the quirks to apply.
2939 */
edid_get_quirks(const struct drm_edid * drm_edid)2940 static u32 edid_get_quirks(const struct drm_edid *drm_edid)
2941 {
2942 const struct edid_quirk *quirk;
2943 int i;
2944
2945 for (i = 0; i < ARRAY_SIZE(edid_quirk_list); i++) {
2946 quirk = &edid_quirk_list[i];
2947 if (drm_edid_match(drm_edid, &quirk->ident))
2948 return quirk->quirks;
2949 }
2950
2951 return 0;
2952 }
2953
2954 #define MODE_SIZE(m) ((m)->hdisplay * (m)->vdisplay)
2955 #define MODE_REFRESH_DIFF(c,t) (abs((c) - (t)))
2956
2957 /*
2958 * Walk the mode list for connector, clearing the preferred status on existing
2959 * modes and setting it anew for the right mode ala quirks.
2960 */
edid_fixup_preferred(struct drm_connector * connector)2961 static void edid_fixup_preferred(struct drm_connector *connector)
2962 {
2963 const struct drm_display_info *info = &connector->display_info;
2964 struct drm_display_mode *t, *cur_mode, *preferred_mode;
2965 int target_refresh = 0;
2966 int cur_vrefresh, preferred_vrefresh;
2967
2968 if (list_empty(&connector->probed_modes))
2969 return;
2970
2971 if (info->quirks & EDID_QUIRK_PREFER_LARGE_60)
2972 target_refresh = 60;
2973 if (info->quirks & EDID_QUIRK_PREFER_LARGE_75)
2974 target_refresh = 75;
2975
2976 preferred_mode = list_first_entry(&connector->probed_modes,
2977 struct drm_display_mode, head);
2978
2979 list_for_each_entry_safe(cur_mode, t, &connector->probed_modes, head) {
2980 cur_mode->type &= ~DRM_MODE_TYPE_PREFERRED;
2981
2982 if (cur_mode == preferred_mode)
2983 continue;
2984
2985 /* Largest mode is preferred */
2986 if (MODE_SIZE(cur_mode) > MODE_SIZE(preferred_mode))
2987 preferred_mode = cur_mode;
2988
2989 cur_vrefresh = drm_mode_vrefresh(cur_mode);
2990 preferred_vrefresh = drm_mode_vrefresh(preferred_mode);
2991 /* At a given size, try to get closest to target refresh */
2992 if ((MODE_SIZE(cur_mode) == MODE_SIZE(preferred_mode)) &&
2993 MODE_REFRESH_DIFF(cur_vrefresh, target_refresh) <
2994 MODE_REFRESH_DIFF(preferred_vrefresh, target_refresh)) {
2995 preferred_mode = cur_mode;
2996 }
2997 }
2998
2999 preferred_mode->type |= DRM_MODE_TYPE_PREFERRED;
3000 }
3001
3002 static bool
mode_is_rb(const struct drm_display_mode * mode)3003 mode_is_rb(const struct drm_display_mode *mode)
3004 {
3005 return (mode->htotal - mode->hdisplay == 160) &&
3006 (mode->hsync_end - mode->hdisplay == 80) &&
3007 (mode->hsync_end - mode->hsync_start == 32) &&
3008 (mode->vsync_start - mode->vdisplay == 3);
3009 }
3010
3011 /*
3012 * drm_mode_find_dmt - Create a copy of a mode if present in DMT
3013 * @dev: Device to duplicate against
3014 * @hsize: Mode width
3015 * @vsize: Mode height
3016 * @fresh: Mode refresh rate
3017 * @rb: Mode reduced-blanking-ness
3018 *
3019 * Walk the DMT mode list looking for a match for the given parameters.
3020 *
3021 * Return: A newly allocated copy of the mode, or NULL if not found.
3022 */
drm_mode_find_dmt(struct drm_device * dev,int hsize,int vsize,int fresh,bool rb)3023 struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
3024 int hsize, int vsize, int fresh,
3025 bool rb)
3026 {
3027 int i;
3028
3029 for (i = 0; i < ARRAY_SIZE(drm_dmt_modes); i++) {
3030 const struct drm_display_mode *ptr = &drm_dmt_modes[i];
3031
3032 if (hsize != ptr->hdisplay)
3033 continue;
3034 if (vsize != ptr->vdisplay)
3035 continue;
3036 if (fresh != drm_mode_vrefresh(ptr))
3037 continue;
3038 if (rb != mode_is_rb(ptr))
3039 continue;
3040
3041 return drm_mode_duplicate(dev, ptr);
3042 }
3043
3044 return NULL;
3045 }
3046 EXPORT_SYMBOL(drm_mode_find_dmt);
3047
is_display_descriptor(const struct detailed_timing * descriptor,u8 type)3048 static bool is_display_descriptor(const struct detailed_timing *descriptor, u8 type)
3049 {
3050 BUILD_BUG_ON(offsetof(typeof(*descriptor), pixel_clock) != 0);
3051 BUILD_BUG_ON(offsetof(typeof(*descriptor), data.other_data.pad1) != 2);
3052 BUILD_BUG_ON(offsetof(typeof(*descriptor), data.other_data.type) != 3);
3053
3054 return descriptor->pixel_clock == 0 &&
3055 descriptor->data.other_data.pad1 == 0 &&
3056 descriptor->data.other_data.type == type;
3057 }
3058
is_detailed_timing_descriptor(const struct detailed_timing * descriptor)3059 static bool is_detailed_timing_descriptor(const struct detailed_timing *descriptor)
3060 {
3061 BUILD_BUG_ON(offsetof(typeof(*descriptor), pixel_clock) != 0);
3062
3063 return descriptor->pixel_clock != 0;
3064 }
3065
3066 typedef void detailed_cb(const struct detailed_timing *timing, void *closure);
3067
3068 static void
cea_for_each_detailed_block(const u8 * ext,detailed_cb * cb,void * closure)3069 cea_for_each_detailed_block(const u8 *ext, detailed_cb *cb, void *closure)
3070 {
3071 int i, n;
3072 u8 d = ext[0x02];
3073 const u8 *det_base = ext + d;
3074
3075 if (d < 4 || d > 127)
3076 return;
3077
3078 n = (127 - d) / 18;
3079 for (i = 0; i < n; i++)
3080 cb((const struct detailed_timing *)(det_base + 18 * i), closure);
3081 }
3082
3083 static void
vtb_for_each_detailed_block(const u8 * ext,detailed_cb * cb,void * closure)3084 vtb_for_each_detailed_block(const u8 *ext, detailed_cb *cb, void *closure)
3085 {
3086 unsigned int i, n = min((int)ext[0x02], 6);
3087 const u8 *det_base = ext + 5;
3088
3089 if (ext[0x01] != 1)
3090 return; /* unknown version */
3091
3092 for (i = 0; i < n; i++)
3093 cb((const struct detailed_timing *)(det_base + 18 * i), closure);
3094 }
3095
drm_for_each_detailed_block(const struct drm_edid * drm_edid,detailed_cb * cb,void * closure)3096 static void drm_for_each_detailed_block(const struct drm_edid *drm_edid,
3097 detailed_cb *cb, void *closure)
3098 {
3099 struct drm_edid_iter edid_iter;
3100 const u8 *ext;
3101 int i;
3102
3103 if (!drm_edid)
3104 return;
3105
3106 for (i = 0; i < EDID_DETAILED_TIMINGS; i++)
3107 cb(&drm_edid->edid->detailed_timings[i], closure);
3108
3109 drm_edid_iter_begin(drm_edid, &edid_iter);
3110 drm_edid_iter_for_each(ext, &edid_iter) {
3111 switch (*ext) {
3112 case CEA_EXT:
3113 cea_for_each_detailed_block(ext, cb, closure);
3114 break;
3115 case VTB_EXT:
3116 vtb_for_each_detailed_block(ext, cb, closure);
3117 break;
3118 default:
3119 break;
3120 }
3121 }
3122 drm_edid_iter_end(&edid_iter);
3123 }
3124
3125 static void
is_rb(const struct detailed_timing * descriptor,void * data)3126 is_rb(const struct detailed_timing *descriptor, void *data)
3127 {
3128 bool *res = data;
3129
3130 if (!is_display_descriptor(descriptor, EDID_DETAIL_MONITOR_RANGE))
3131 return;
3132
3133 BUILD_BUG_ON(offsetof(typeof(*descriptor), data.other_data.data.range.flags) != 10);
3134 BUILD_BUG_ON(offsetof(typeof(*descriptor), data.other_data.data.range.formula.cvt.flags) != 15);
3135
3136 if (descriptor->data.other_data.data.range.flags == DRM_EDID_CVT_SUPPORT_FLAG &&
3137 descriptor->data.other_data.data.range.formula.cvt.flags & DRM_EDID_CVT_FLAGS_REDUCED_BLANKING)
3138 *res = true;
3139 }
3140
3141 /* EDID 1.4 defines this explicitly. For EDID 1.3, we guess, badly. */
3142 static bool
drm_monitor_supports_rb(const struct drm_edid * drm_edid)3143 drm_monitor_supports_rb(const struct drm_edid *drm_edid)
3144 {
3145 if (drm_edid->edid->revision >= 4) {
3146 bool ret = false;
3147
3148 drm_for_each_detailed_block(drm_edid, is_rb, &ret);
3149 return ret;
3150 }
3151
3152 return drm_edid_is_digital(drm_edid);
3153 }
3154
3155 static void
find_gtf2(const struct detailed_timing * descriptor,void * data)3156 find_gtf2(const struct detailed_timing *descriptor, void *data)
3157 {
3158 const struct detailed_timing **res = data;
3159
3160 if (!is_display_descriptor(descriptor, EDID_DETAIL_MONITOR_RANGE))
3161 return;
3162
3163 BUILD_BUG_ON(offsetof(typeof(*descriptor), data.other_data.data.range.flags) != 10);
3164
3165 if (descriptor->data.other_data.data.range.flags == DRM_EDID_SECONDARY_GTF_SUPPORT_FLAG)
3166 *res = descriptor;
3167 }
3168
3169 /* Secondary GTF curve kicks in above some break frequency */
3170 static int
drm_gtf2_hbreak(const struct drm_edid * drm_edid)3171 drm_gtf2_hbreak(const struct drm_edid *drm_edid)
3172 {
3173 const struct detailed_timing *descriptor = NULL;
3174
3175 drm_for_each_detailed_block(drm_edid, find_gtf2, &descriptor);
3176
3177 BUILD_BUG_ON(offsetof(typeof(*descriptor), data.other_data.data.range.formula.gtf2.hfreq_start_khz) != 12);
3178
3179 return descriptor ? descriptor->data.other_data.data.range.formula.gtf2.hfreq_start_khz * 2 : 0;
3180 }
3181
3182 static int
drm_gtf2_2c(const struct drm_edid * drm_edid)3183 drm_gtf2_2c(const struct drm_edid *drm_edid)
3184 {
3185 const struct detailed_timing *descriptor = NULL;
3186
3187 drm_for_each_detailed_block(drm_edid, find_gtf2, &descriptor);
3188
3189 BUILD_BUG_ON(offsetof(typeof(*descriptor), data.other_data.data.range.formula.gtf2.c) != 13);
3190
3191 return descriptor ? descriptor->data.other_data.data.range.formula.gtf2.c : 0;
3192 }
3193
3194 static int
drm_gtf2_m(const struct drm_edid * drm_edid)3195 drm_gtf2_m(const struct drm_edid *drm_edid)
3196 {
3197 const struct detailed_timing *descriptor = NULL;
3198
3199 drm_for_each_detailed_block(drm_edid, find_gtf2, &descriptor);
3200
3201 BUILD_BUG_ON(offsetof(typeof(*descriptor), data.other_data.data.range.formula.gtf2.m) != 14);
3202
3203 return descriptor ? le16_to_cpu(descriptor->data.other_data.data.range.formula.gtf2.m) : 0;
3204 }
3205
3206 static int
drm_gtf2_k(const struct drm_edid * drm_edid)3207 drm_gtf2_k(const struct drm_edid *drm_edid)
3208 {
3209 const struct detailed_timing *descriptor = NULL;
3210
3211 drm_for_each_detailed_block(drm_edid, find_gtf2, &descriptor);
3212
3213 BUILD_BUG_ON(offsetof(typeof(*descriptor), data.other_data.data.range.formula.gtf2.k) != 16);
3214
3215 return descriptor ? descriptor->data.other_data.data.range.formula.gtf2.k : 0;
3216 }
3217
3218 static int
drm_gtf2_2j(const struct drm_edid * drm_edid)3219 drm_gtf2_2j(const struct drm_edid *drm_edid)
3220 {
3221 const struct detailed_timing *descriptor = NULL;
3222
3223 drm_for_each_detailed_block(drm_edid, find_gtf2, &descriptor);
3224
3225 BUILD_BUG_ON(offsetof(typeof(*descriptor), data.other_data.data.range.formula.gtf2.j) != 17);
3226
3227 return descriptor ? descriptor->data.other_data.data.range.formula.gtf2.j : 0;
3228 }
3229
3230 static void
get_timing_level(const struct detailed_timing * descriptor,void * data)3231 get_timing_level(const struct detailed_timing *descriptor, void *data)
3232 {
3233 int *res = data;
3234
3235 if (!is_display_descriptor(descriptor, EDID_DETAIL_MONITOR_RANGE))
3236 return;
3237
3238 BUILD_BUG_ON(offsetof(typeof(*descriptor), data.other_data.data.range.flags) != 10);
3239
3240 switch (descriptor->data.other_data.data.range.flags) {
3241 case DRM_EDID_DEFAULT_GTF_SUPPORT_FLAG:
3242 *res = LEVEL_GTF;
3243 break;
3244 case DRM_EDID_SECONDARY_GTF_SUPPORT_FLAG:
3245 *res = LEVEL_GTF2;
3246 break;
3247 case DRM_EDID_CVT_SUPPORT_FLAG:
3248 *res = LEVEL_CVT;
3249 break;
3250 default:
3251 break;
3252 }
3253 }
3254
3255 /* Get standard timing level (CVT/GTF/DMT). */
standard_timing_level(const struct drm_edid * drm_edid)3256 static int standard_timing_level(const struct drm_edid *drm_edid)
3257 {
3258 const struct edid *edid = drm_edid->edid;
3259
3260 if (edid->revision >= 4) {
3261 /*
3262 * If the range descriptor doesn't
3263 * indicate otherwise default to CVT
3264 */
3265 int ret = LEVEL_CVT;
3266
3267 drm_for_each_detailed_block(drm_edid, get_timing_level, &ret);
3268
3269 return ret;
3270 } else if (edid->revision >= 3 && drm_gtf2_hbreak(drm_edid)) {
3271 return LEVEL_GTF2;
3272 } else if (edid->revision >= 2) {
3273 return LEVEL_GTF;
3274 } else {
3275 return LEVEL_DMT;
3276 }
3277 }
3278
3279 /*
3280 * 0 is reserved. The spec says 0x01 fill for unused timings. Some old
3281 * monitors fill with ascii space (0x20) instead.
3282 */
3283 static int
bad_std_timing(u8 a,u8 b)3284 bad_std_timing(u8 a, u8 b)
3285 {
3286 return (a == 0x00 && b == 0x00) ||
3287 (a == 0x01 && b == 0x01) ||
3288 (a == 0x20 && b == 0x20);
3289 }
3290
drm_mode_hsync(const struct drm_display_mode * mode)3291 static int drm_mode_hsync(const struct drm_display_mode *mode)
3292 {
3293 if (mode->htotal <= 0)
3294 return 0;
3295
3296 return DIV_ROUND_CLOSEST(mode->clock, mode->htotal);
3297 }
3298
3299 static struct drm_display_mode *
drm_gtf2_mode(struct drm_device * dev,const struct drm_edid * drm_edid,int hsize,int vsize,int vrefresh_rate)3300 drm_gtf2_mode(struct drm_device *dev,
3301 const struct drm_edid *drm_edid,
3302 int hsize, int vsize, int vrefresh_rate)
3303 {
3304 struct drm_display_mode *mode;
3305
3306 /*
3307 * This is potentially wrong if there's ever a monitor with
3308 * more than one ranges section, each claiming a different
3309 * secondary GTF curve. Please don't do that.
3310 */
3311 mode = drm_gtf_mode(dev, hsize, vsize, vrefresh_rate, 0, 0);
3312 if (!mode)
3313 return NULL;
3314
3315 if (drm_mode_hsync(mode) > drm_gtf2_hbreak(drm_edid)) {
3316 drm_mode_destroy(dev, mode);
3317 mode = drm_gtf_mode_complex(dev, hsize, vsize,
3318 vrefresh_rate, 0, 0,
3319 drm_gtf2_m(drm_edid),
3320 drm_gtf2_2c(drm_edid),
3321 drm_gtf2_k(drm_edid),
3322 drm_gtf2_2j(drm_edid));
3323 }
3324
3325 return mode;
3326 }
3327
3328 /*
3329 * Take the standard timing params (in this case width, aspect, and refresh)
3330 * and convert them into a real mode using CVT/GTF/DMT.
3331 */
drm_mode_std(struct drm_connector * connector,const struct drm_edid * drm_edid,const struct std_timing * t)3332 static struct drm_display_mode *drm_mode_std(struct drm_connector *connector,
3333 const struct drm_edid *drm_edid,
3334 const struct std_timing *t)
3335 {
3336 struct drm_device *dev = connector->dev;
3337 struct drm_display_mode *m, *mode = NULL;
3338 int hsize, vsize;
3339 int vrefresh_rate;
3340 unsigned aspect_ratio = (t->vfreq_aspect & EDID_TIMING_ASPECT_MASK)
3341 >> EDID_TIMING_ASPECT_SHIFT;
3342 unsigned vfreq = (t->vfreq_aspect & EDID_TIMING_VFREQ_MASK)
3343 >> EDID_TIMING_VFREQ_SHIFT;
3344 int timing_level = standard_timing_level(drm_edid);
3345
3346 if (bad_std_timing(t->hsize, t->vfreq_aspect))
3347 return NULL;
3348
3349 /* According to the EDID spec, the hdisplay = hsize * 8 + 248 */
3350 hsize = t->hsize * 8 + 248;
3351 /* vrefresh_rate = vfreq + 60 */
3352 vrefresh_rate = vfreq + 60;
3353 /* the vdisplay is calculated based on the aspect ratio */
3354 if (aspect_ratio == 0) {
3355 if (drm_edid->edid->revision < 3)
3356 vsize = hsize;
3357 else
3358 vsize = (hsize * 10) / 16;
3359 } else if (aspect_ratio == 1)
3360 vsize = (hsize * 3) / 4;
3361 else if (aspect_ratio == 2)
3362 vsize = (hsize * 4) / 5;
3363 else
3364 vsize = (hsize * 9) / 16;
3365
3366 /* HDTV hack, part 1 */
3367 if (vrefresh_rate == 60 &&
3368 ((hsize == 1360 && vsize == 765) ||
3369 (hsize == 1368 && vsize == 769))) {
3370 hsize = 1366;
3371 vsize = 768;
3372 }
3373
3374 /*
3375 * If this connector already has a mode for this size and refresh
3376 * rate (because it came from detailed or CVT info), use that
3377 * instead. This way we don't have to guess at interlace or
3378 * reduced blanking.
3379 */
3380 list_for_each_entry(m, &connector->probed_modes, head)
3381 if (m->hdisplay == hsize && m->vdisplay == vsize &&
3382 drm_mode_vrefresh(m) == vrefresh_rate)
3383 return NULL;
3384
3385 /* HDTV hack, part 2 */
3386 if (hsize == 1366 && vsize == 768 && vrefresh_rate == 60) {
3387 mode = drm_cvt_mode(dev, 1366, 768, vrefresh_rate, 0, 0,
3388 false);
3389 if (!mode)
3390 return NULL;
3391 mode->hdisplay = 1366;
3392 mode->hsync_start = mode->hsync_start - 1;
3393 mode->hsync_end = mode->hsync_end - 1;
3394 return mode;
3395 }
3396
3397 /* check whether it can be found in default mode table */
3398 if (drm_monitor_supports_rb(drm_edid)) {
3399 mode = drm_mode_find_dmt(dev, hsize, vsize, vrefresh_rate,
3400 true);
3401 if (mode)
3402 return mode;
3403 }
3404 mode = drm_mode_find_dmt(dev, hsize, vsize, vrefresh_rate, false);
3405 if (mode)
3406 return mode;
3407
3408 /* okay, generate it */
3409 switch (timing_level) {
3410 case LEVEL_DMT:
3411 break;
3412 case LEVEL_GTF:
3413 mode = drm_gtf_mode(dev, hsize, vsize, vrefresh_rate, 0, 0);
3414 break;
3415 case LEVEL_GTF2:
3416 mode = drm_gtf2_mode(dev, drm_edid, hsize, vsize, vrefresh_rate);
3417 break;
3418 case LEVEL_CVT:
3419 mode = drm_cvt_mode(dev, hsize, vsize, vrefresh_rate, 0, 0,
3420 false);
3421 break;
3422 }
3423 return mode;
3424 }
3425
3426 /*
3427 * EDID is delightfully ambiguous about how interlaced modes are to be
3428 * encoded. Our internal representation is of frame height, but some
3429 * HDTV detailed timings are encoded as field height.
3430 *
3431 * The format list here is from CEA, in frame size. Technically we
3432 * should be checking refresh rate too. Whatever.
3433 */
3434 static void
drm_mode_do_interlace_quirk(struct drm_display_mode * mode,const struct detailed_pixel_timing * pt)3435 drm_mode_do_interlace_quirk(struct drm_display_mode *mode,
3436 const struct detailed_pixel_timing *pt)
3437 {
3438 int i;
3439 static const struct {
3440 int w, h;
3441 } cea_interlaced[] = {
3442 { 1920, 1080 },
3443 { 720, 480 },
3444 { 1440, 480 },
3445 { 2880, 480 },
3446 { 720, 576 },
3447 { 1440, 576 },
3448 { 2880, 576 },
3449 };
3450
3451 if (!(pt->misc & DRM_EDID_PT_INTERLACED))
3452 return;
3453
3454 for (i = 0; i < ARRAY_SIZE(cea_interlaced); i++) {
3455 if ((mode->hdisplay == cea_interlaced[i].w) &&
3456 (mode->vdisplay == cea_interlaced[i].h / 2)) {
3457 mode->vdisplay *= 2;
3458 mode->vsync_start *= 2;
3459 mode->vsync_end *= 2;
3460 mode->vtotal *= 2;
3461 mode->vtotal |= 1;
3462 }
3463 }
3464
3465 mode->flags |= DRM_MODE_FLAG_INTERLACE;
3466 }
3467
3468 /*
3469 * Create a new mode from an EDID detailed timing section. An EDID detailed
3470 * timing block contains enough info for us to create and return a new struct
3471 * drm_display_mode.
3472 */
drm_mode_detailed(struct drm_connector * connector,const struct drm_edid * drm_edid,const struct detailed_timing * timing)3473 static struct drm_display_mode *drm_mode_detailed(struct drm_connector *connector,
3474 const struct drm_edid *drm_edid,
3475 const struct detailed_timing *timing)
3476 {
3477 const struct drm_display_info *info = &connector->display_info;
3478 struct drm_device *dev = connector->dev;
3479 struct drm_display_mode *mode;
3480 const struct detailed_pixel_timing *pt = &timing->data.pixel_data;
3481 unsigned hactive = (pt->hactive_hblank_hi & 0xf0) << 4 | pt->hactive_lo;
3482 unsigned vactive = (pt->vactive_vblank_hi & 0xf0) << 4 | pt->vactive_lo;
3483 unsigned hblank = (pt->hactive_hblank_hi & 0xf) << 8 | pt->hblank_lo;
3484 unsigned vblank = (pt->vactive_vblank_hi & 0xf) << 8 | pt->vblank_lo;
3485 unsigned hsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc0) << 2 | pt->hsync_offset_lo;
3486 unsigned hsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x30) << 4 | pt->hsync_pulse_width_lo;
3487 unsigned vsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc) << 2 | pt->vsync_offset_pulse_width_lo >> 4;
3488 unsigned vsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x3) << 4 | (pt->vsync_offset_pulse_width_lo & 0xf);
3489
3490 /* ignore tiny modes */
3491 if (hactive < 64 || vactive < 64)
3492 return NULL;
3493
3494 if (pt->misc & DRM_EDID_PT_STEREO) {
3495 drm_dbg_kms(dev, "[CONNECTOR:%d:%s] Stereo mode not supported\n",
3496 connector->base.id, connector->name);
3497 return NULL;
3498 }
3499 if (!(pt->misc & DRM_EDID_PT_SEPARATE_SYNC)) {
3500 drm_dbg_kms(dev, "[CONNECTOR:%d:%s] Composite sync not supported\n",
3501 connector->base.id, connector->name);
3502 }
3503
3504 /* it is incorrect if hsync/vsync width is zero */
3505 if (!hsync_pulse_width || !vsync_pulse_width) {
3506 drm_dbg_kms(dev, "[CONNECTOR:%d:%s] Incorrect Detailed timing. Wrong Hsync/Vsync pulse width\n",
3507 connector->base.id, connector->name);
3508 return NULL;
3509 }
3510
3511 if (info->quirks & EDID_QUIRK_FORCE_REDUCED_BLANKING) {
3512 mode = drm_cvt_mode(dev, hactive, vactive, 60, true, false, false);
3513 if (!mode)
3514 return NULL;
3515
3516 goto set_size;
3517 }
3518
3519 mode = drm_mode_create(dev);
3520 if (!mode)
3521 return NULL;
3522
3523 if (info->quirks & EDID_QUIRK_135_CLOCK_TOO_HIGH)
3524 mode->clock = 1088 * 10;
3525 else
3526 mode->clock = le16_to_cpu(timing->pixel_clock) * 10;
3527
3528 mode->hdisplay = hactive;
3529 mode->hsync_start = mode->hdisplay + hsync_offset;
3530 mode->hsync_end = mode->hsync_start + hsync_pulse_width;
3531 mode->htotal = mode->hdisplay + hblank;
3532
3533 mode->vdisplay = vactive;
3534 mode->vsync_start = mode->vdisplay + vsync_offset;
3535 mode->vsync_end = mode->vsync_start + vsync_pulse_width;
3536 mode->vtotal = mode->vdisplay + vblank;
3537
3538 /* Some EDIDs have bogus h/vsync_end values */
3539 if (mode->hsync_end > mode->htotal) {
3540 drm_dbg_kms(dev, "[CONNECTOR:%d:%s] reducing hsync_end %d->%d\n",
3541 connector->base.id, connector->name,
3542 mode->hsync_end, mode->htotal);
3543 mode->hsync_end = mode->htotal;
3544 }
3545 if (mode->vsync_end > mode->vtotal) {
3546 drm_dbg_kms(dev, "[CONNECTOR:%d:%s] reducing vsync_end %d->%d\n",
3547 connector->base.id, connector->name,
3548 mode->vsync_end, mode->vtotal);
3549 mode->vsync_end = mode->vtotal;
3550 }
3551
3552 drm_mode_do_interlace_quirk(mode, pt);
3553
3554 if (info->quirks & EDID_QUIRK_DETAILED_SYNC_PP) {
3555 mode->flags |= DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC;
3556 } else {
3557 mode->flags |= (pt->misc & DRM_EDID_PT_HSYNC_POSITIVE) ?
3558 DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
3559 mode->flags |= (pt->misc & DRM_EDID_PT_VSYNC_POSITIVE) ?
3560 DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
3561 }
3562
3563 set_size:
3564 mode->width_mm = pt->width_mm_lo | (pt->width_height_mm_hi & 0xf0) << 4;
3565 mode->height_mm = pt->height_mm_lo | (pt->width_height_mm_hi & 0xf) << 8;
3566
3567 if (info->quirks & EDID_QUIRK_DETAILED_IN_CM) {
3568 mode->width_mm *= 10;
3569 mode->height_mm *= 10;
3570 }
3571
3572 if (info->quirks & EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE) {
3573 mode->width_mm = drm_edid->edid->width_cm * 10;
3574 mode->height_mm = drm_edid->edid->height_cm * 10;
3575 }
3576
3577 mode->type = DRM_MODE_TYPE_DRIVER;
3578 drm_mode_set_name(mode);
3579
3580 return mode;
3581 }
3582
3583 static bool
mode_in_hsync_range(const struct drm_display_mode * mode,const struct edid * edid,const u8 * t)3584 mode_in_hsync_range(const struct drm_display_mode *mode,
3585 const struct edid *edid, const u8 *t)
3586 {
3587 int hsync, hmin, hmax;
3588
3589 hmin = t[7];
3590 if (edid->revision >= 4)
3591 hmin += ((t[4] & 0x04) ? 255 : 0);
3592 hmax = t[8];
3593 if (edid->revision >= 4)
3594 hmax += ((t[4] & 0x08) ? 255 : 0);
3595 hsync = drm_mode_hsync(mode);
3596
3597 return (hsync <= hmax && hsync >= hmin);
3598 }
3599
3600 static bool
mode_in_vsync_range(const struct drm_display_mode * mode,const struct edid * edid,const u8 * t)3601 mode_in_vsync_range(const struct drm_display_mode *mode,
3602 const struct edid *edid, const u8 *t)
3603 {
3604 int vsync, vmin, vmax;
3605
3606 vmin = t[5];
3607 if (edid->revision >= 4)
3608 vmin += ((t[4] & 0x01) ? 255 : 0);
3609 vmax = t[6];
3610 if (edid->revision >= 4)
3611 vmax += ((t[4] & 0x02) ? 255 : 0);
3612 vsync = drm_mode_vrefresh(mode);
3613
3614 return (vsync <= vmax && vsync >= vmin);
3615 }
3616
3617 static u32
range_pixel_clock(const struct edid * edid,const u8 * t)3618 range_pixel_clock(const struct edid *edid, const u8 *t)
3619 {
3620 /* unspecified */
3621 if (t[9] == 0 || t[9] == 255)
3622 return 0;
3623
3624 /* 1.4 with CVT support gives us real precision, yay */
3625 if (edid->revision >= 4 && t[10] == DRM_EDID_CVT_SUPPORT_FLAG)
3626 return (t[9] * 10000) - ((t[12] >> 2) * 250);
3627
3628 /* 1.3 is pathetic, so fuzz up a bit */
3629 return t[9] * 10000 + 5001;
3630 }
3631
mode_in_range(const struct drm_display_mode * mode,const struct drm_edid * drm_edid,const struct detailed_timing * timing)3632 static bool mode_in_range(const struct drm_display_mode *mode,
3633 const struct drm_edid *drm_edid,
3634 const struct detailed_timing *timing)
3635 {
3636 const struct edid *edid = drm_edid->edid;
3637 u32 max_clock;
3638 const u8 *t = (const u8 *)timing;
3639
3640 if (!mode_in_hsync_range(mode, edid, t))
3641 return false;
3642
3643 if (!mode_in_vsync_range(mode, edid, t))
3644 return false;
3645
3646 max_clock = range_pixel_clock(edid, t);
3647 if (max_clock)
3648 if (mode->clock > max_clock)
3649 return false;
3650
3651 /* 1.4 max horizontal check */
3652 if (edid->revision >= 4 && t[10] == DRM_EDID_CVT_SUPPORT_FLAG)
3653 if (t[13] && mode->hdisplay > 8 * (t[13] + (256 * (t[12]&0x3))))
3654 return false;
3655
3656 if (mode_is_rb(mode) && !drm_monitor_supports_rb(drm_edid))
3657 return false;
3658
3659 return true;
3660 }
3661
valid_inferred_mode(const struct drm_connector * connector,const struct drm_display_mode * mode)3662 static bool valid_inferred_mode(const struct drm_connector *connector,
3663 const struct drm_display_mode *mode)
3664 {
3665 const struct drm_display_mode *m;
3666 bool ok = false;
3667
3668 list_for_each_entry(m, &connector->probed_modes, head) {
3669 if (mode->hdisplay == m->hdisplay &&
3670 mode->vdisplay == m->vdisplay &&
3671 drm_mode_vrefresh(mode) == drm_mode_vrefresh(m))
3672 return false; /* duplicated */
3673 if (mode->hdisplay <= m->hdisplay &&
3674 mode->vdisplay <= m->vdisplay)
3675 ok = true;
3676 }
3677 return ok;
3678 }
3679
drm_dmt_modes_for_range(struct drm_connector * connector,const struct drm_edid * drm_edid,const struct detailed_timing * timing)3680 static int drm_dmt_modes_for_range(struct drm_connector *connector,
3681 const struct drm_edid *drm_edid,
3682 const struct detailed_timing *timing)
3683 {
3684 int i, modes = 0;
3685 struct drm_display_mode *newmode;
3686 struct drm_device *dev = connector->dev;
3687
3688 for (i = 0; i < ARRAY_SIZE(drm_dmt_modes); i++) {
3689 if (mode_in_range(drm_dmt_modes + i, drm_edid, timing) &&
3690 valid_inferred_mode(connector, drm_dmt_modes + i)) {
3691 newmode = drm_mode_duplicate(dev, &drm_dmt_modes[i]);
3692 if (newmode) {
3693 drm_mode_probed_add(connector, newmode);
3694 modes++;
3695 }
3696 }
3697 }
3698
3699 return modes;
3700 }
3701
3702 /* fix up 1366x768 mode from 1368x768;
3703 * GFT/CVT can't express 1366 width which isn't dividable by 8
3704 */
drm_mode_fixup_1366x768(struct drm_display_mode * mode)3705 void drm_mode_fixup_1366x768(struct drm_display_mode *mode)
3706 {
3707 if (mode->hdisplay == 1368 && mode->vdisplay == 768) {
3708 mode->hdisplay = 1366;
3709 mode->hsync_start--;
3710 mode->hsync_end--;
3711 drm_mode_set_name(mode);
3712 }
3713 }
3714
drm_gtf_modes_for_range(struct drm_connector * connector,const struct drm_edid * drm_edid,const struct detailed_timing * timing)3715 static int drm_gtf_modes_for_range(struct drm_connector *connector,
3716 const struct drm_edid *drm_edid,
3717 const struct detailed_timing *timing)
3718 {
3719 int i, modes = 0;
3720 struct drm_display_mode *newmode;
3721 struct drm_device *dev = connector->dev;
3722
3723 for (i = 0; i < ARRAY_SIZE(extra_modes); i++) {
3724 const struct minimode *m = &extra_modes[i];
3725
3726 newmode = drm_gtf_mode(dev, m->w, m->h, m->r, 0, 0);
3727 if (!newmode)
3728 return modes;
3729
3730 drm_mode_fixup_1366x768(newmode);
3731 if (!mode_in_range(newmode, drm_edid, timing) ||
3732 !valid_inferred_mode(connector, newmode)) {
3733 drm_mode_destroy(dev, newmode);
3734 continue;
3735 }
3736
3737 drm_mode_probed_add(connector, newmode);
3738 modes++;
3739 }
3740
3741 return modes;
3742 }
3743
drm_gtf2_modes_for_range(struct drm_connector * connector,const struct drm_edid * drm_edid,const struct detailed_timing * timing)3744 static int drm_gtf2_modes_for_range(struct drm_connector *connector,
3745 const struct drm_edid *drm_edid,
3746 const struct detailed_timing *timing)
3747 {
3748 int i, modes = 0;
3749 struct drm_display_mode *newmode;
3750 struct drm_device *dev = connector->dev;
3751
3752 for (i = 0; i < ARRAY_SIZE(extra_modes); i++) {
3753 const struct minimode *m = &extra_modes[i];
3754
3755 newmode = drm_gtf2_mode(dev, drm_edid, m->w, m->h, m->r);
3756 if (!newmode)
3757 return modes;
3758
3759 drm_mode_fixup_1366x768(newmode);
3760 if (!mode_in_range(newmode, drm_edid, timing) ||
3761 !valid_inferred_mode(connector, newmode)) {
3762 drm_mode_destroy(dev, newmode);
3763 continue;
3764 }
3765
3766 drm_mode_probed_add(connector, newmode);
3767 modes++;
3768 }
3769
3770 return modes;
3771 }
3772
drm_cvt_modes_for_range(struct drm_connector * connector,const struct drm_edid * drm_edid,const struct detailed_timing * timing)3773 static int drm_cvt_modes_for_range(struct drm_connector *connector,
3774 const struct drm_edid *drm_edid,
3775 const struct detailed_timing *timing)
3776 {
3777 int i, modes = 0;
3778 struct drm_display_mode *newmode;
3779 struct drm_device *dev = connector->dev;
3780 bool rb = drm_monitor_supports_rb(drm_edid);
3781
3782 for (i = 0; i < ARRAY_SIZE(extra_modes); i++) {
3783 const struct minimode *m = &extra_modes[i];
3784
3785 newmode = drm_cvt_mode(dev, m->w, m->h, m->r, rb, 0, 0);
3786 if (!newmode)
3787 return modes;
3788
3789 drm_mode_fixup_1366x768(newmode);
3790 if (!mode_in_range(newmode, drm_edid, timing) ||
3791 !valid_inferred_mode(connector, newmode)) {
3792 drm_mode_destroy(dev, newmode);
3793 continue;
3794 }
3795
3796 drm_mode_probed_add(connector, newmode);
3797 modes++;
3798 }
3799
3800 return modes;
3801 }
3802
3803 static void
do_inferred_modes(const struct detailed_timing * timing,void * c)3804 do_inferred_modes(const struct detailed_timing *timing, void *c)
3805 {
3806 struct detailed_mode_closure *closure = c;
3807 const struct detailed_non_pixel *data = &timing->data.other_data;
3808 const struct detailed_data_monitor_range *range = &data->data.range;
3809
3810 if (!is_display_descriptor(timing, EDID_DETAIL_MONITOR_RANGE))
3811 return;
3812
3813 closure->modes += drm_dmt_modes_for_range(closure->connector,
3814 closure->drm_edid,
3815 timing);
3816
3817 if (closure->drm_edid->edid->revision < 2)
3818 return; /* GTF not defined yet */
3819
3820 switch (range->flags) {
3821 case DRM_EDID_SECONDARY_GTF_SUPPORT_FLAG:
3822 closure->modes += drm_gtf2_modes_for_range(closure->connector,
3823 closure->drm_edid,
3824 timing);
3825 break;
3826 case DRM_EDID_DEFAULT_GTF_SUPPORT_FLAG:
3827 closure->modes += drm_gtf_modes_for_range(closure->connector,
3828 closure->drm_edid,
3829 timing);
3830 break;
3831 case DRM_EDID_CVT_SUPPORT_FLAG:
3832 if (closure->drm_edid->edid->revision < 4)
3833 break;
3834
3835 closure->modes += drm_cvt_modes_for_range(closure->connector,
3836 closure->drm_edid,
3837 timing);
3838 break;
3839 case DRM_EDID_RANGE_LIMITS_ONLY_FLAG:
3840 default:
3841 break;
3842 }
3843 }
3844
add_inferred_modes(struct drm_connector * connector,const struct drm_edid * drm_edid)3845 static int add_inferred_modes(struct drm_connector *connector,
3846 const struct drm_edid *drm_edid)
3847 {
3848 struct detailed_mode_closure closure = {
3849 .connector = connector,
3850 .drm_edid = drm_edid,
3851 };
3852
3853 if (drm_edid->edid->revision >= 1)
3854 drm_for_each_detailed_block(drm_edid, do_inferred_modes, &closure);
3855
3856 return closure.modes;
3857 }
3858
3859 static int
drm_est3_modes(struct drm_connector * connector,const struct detailed_timing * timing)3860 drm_est3_modes(struct drm_connector *connector, const struct detailed_timing *timing)
3861 {
3862 int i, j, m, modes = 0;
3863 struct drm_display_mode *mode;
3864 const u8 *est = ((const u8 *)timing) + 6;
3865
3866 for (i = 0; i < 6; i++) {
3867 for (j = 7; j >= 0; j--) {
3868 m = (i * 8) + (7 - j);
3869 if (m >= ARRAY_SIZE(est3_modes))
3870 break;
3871 if (est[i] & (1 << j)) {
3872 mode = drm_mode_find_dmt(connector->dev,
3873 est3_modes[m].w,
3874 est3_modes[m].h,
3875 est3_modes[m].r,
3876 est3_modes[m].rb);
3877 if (mode) {
3878 drm_mode_probed_add(connector, mode);
3879 modes++;
3880 }
3881 }
3882 }
3883 }
3884
3885 return modes;
3886 }
3887
3888 static void
do_established_modes(const struct detailed_timing * timing,void * c)3889 do_established_modes(const struct detailed_timing *timing, void *c)
3890 {
3891 struct detailed_mode_closure *closure = c;
3892
3893 if (!is_display_descriptor(timing, EDID_DETAIL_EST_TIMINGS))
3894 return;
3895
3896 closure->modes += drm_est3_modes(closure->connector, timing);
3897 }
3898
3899 /*
3900 * Get established modes from EDID and add them. Each EDID block contains a
3901 * bitmap of the supported "established modes" list (defined above). Tease them
3902 * out and add them to the global modes list.
3903 */
add_established_modes(struct drm_connector * connector,const struct drm_edid * drm_edid)3904 static int add_established_modes(struct drm_connector *connector,
3905 const struct drm_edid *drm_edid)
3906 {
3907 struct drm_device *dev = connector->dev;
3908 const struct edid *edid = drm_edid->edid;
3909 unsigned long est_bits = edid->established_timings.t1 |
3910 (edid->established_timings.t2 << 8) |
3911 ((edid->established_timings.mfg_rsvd & 0x80) << 9);
3912 int i, modes = 0;
3913 struct detailed_mode_closure closure = {
3914 .connector = connector,
3915 .drm_edid = drm_edid,
3916 };
3917
3918 for (i = 0; i <= EDID_EST_TIMINGS; i++) {
3919 if (est_bits & (1<<i)) {
3920 struct drm_display_mode *newmode;
3921
3922 newmode = drm_mode_duplicate(dev, &edid_est_modes[i]);
3923 if (newmode) {
3924 drm_mode_probed_add(connector, newmode);
3925 modes++;
3926 }
3927 }
3928 }
3929
3930 if (edid->revision >= 1)
3931 drm_for_each_detailed_block(drm_edid, do_established_modes,
3932 &closure);
3933
3934 return modes + closure.modes;
3935 }
3936
3937 static void
do_standard_modes(const struct detailed_timing * timing,void * c)3938 do_standard_modes(const struct detailed_timing *timing, void *c)
3939 {
3940 struct detailed_mode_closure *closure = c;
3941 const struct detailed_non_pixel *data = &timing->data.other_data;
3942 struct drm_connector *connector = closure->connector;
3943 int i;
3944
3945 if (!is_display_descriptor(timing, EDID_DETAIL_STD_MODES))
3946 return;
3947
3948 for (i = 0; i < 6; i++) {
3949 const struct std_timing *std = &data->data.timings[i];
3950 struct drm_display_mode *newmode;
3951
3952 newmode = drm_mode_std(connector, closure->drm_edid, std);
3953 if (newmode) {
3954 drm_mode_probed_add(connector, newmode);
3955 closure->modes++;
3956 }
3957 }
3958 }
3959
3960 /*
3961 * Get standard modes from EDID and add them. Standard modes can be calculated
3962 * using the appropriate standard (DMT, GTF, or CVT). Grab them from EDID and
3963 * add them to the list.
3964 */
add_standard_modes(struct drm_connector * connector,const struct drm_edid * drm_edid)3965 static int add_standard_modes(struct drm_connector *connector,
3966 const struct drm_edid *drm_edid)
3967 {
3968 int i, modes = 0;
3969 struct detailed_mode_closure closure = {
3970 .connector = connector,
3971 .drm_edid = drm_edid,
3972 };
3973
3974 for (i = 0; i < EDID_STD_TIMINGS; i++) {
3975 struct drm_display_mode *newmode;
3976
3977 newmode = drm_mode_std(connector, drm_edid,
3978 &drm_edid->edid->standard_timings[i]);
3979 if (newmode) {
3980 drm_mode_probed_add(connector, newmode);
3981 modes++;
3982 }
3983 }
3984
3985 if (drm_edid->edid->revision >= 1)
3986 drm_for_each_detailed_block(drm_edid, do_standard_modes,
3987 &closure);
3988
3989 /* XXX should also look for standard codes in VTB blocks */
3990
3991 return modes + closure.modes;
3992 }
3993
drm_cvt_modes(struct drm_connector * connector,const struct detailed_timing * timing)3994 static int drm_cvt_modes(struct drm_connector *connector,
3995 const struct detailed_timing *timing)
3996 {
3997 int i, j, modes = 0;
3998 struct drm_display_mode *newmode;
3999 struct drm_device *dev = connector->dev;
4000 const struct cvt_timing *cvt;
4001 static const int rates[] = { 60, 85, 75, 60, 50 };
4002 const u8 empty[3] = { 0, 0, 0 };
4003
4004 for (i = 0; i < 4; i++) {
4005 int width, height;
4006
4007 cvt = &(timing->data.other_data.data.cvt[i]);
4008
4009 if (!memcmp(cvt->code, empty, 3))
4010 continue;
4011
4012 height = (cvt->code[0] + ((cvt->code[1] & 0xf0) << 4) + 1) * 2;
4013 switch (cvt->code[1] & 0x0c) {
4014 /* default - because compiler doesn't see that we've enumerated all cases */
4015 default:
4016 case 0x00:
4017 width = height * 4 / 3;
4018 break;
4019 case 0x04:
4020 width = height * 16 / 9;
4021 break;
4022 case 0x08:
4023 width = height * 16 / 10;
4024 break;
4025 case 0x0c:
4026 width = height * 15 / 9;
4027 break;
4028 }
4029
4030 for (j = 1; j < 5; j++) {
4031 if (cvt->code[2] & (1 << j)) {
4032 newmode = drm_cvt_mode(dev, width, height,
4033 rates[j], j == 0,
4034 false, false);
4035 if (newmode) {
4036 drm_mode_probed_add(connector, newmode);
4037 modes++;
4038 }
4039 }
4040 }
4041 }
4042
4043 return modes;
4044 }
4045
4046 static void
do_cvt_mode(const struct detailed_timing * timing,void * c)4047 do_cvt_mode(const struct detailed_timing *timing, void *c)
4048 {
4049 struct detailed_mode_closure *closure = c;
4050
4051 if (!is_display_descriptor(timing, EDID_DETAIL_CVT_3BYTE))
4052 return;
4053
4054 closure->modes += drm_cvt_modes(closure->connector, timing);
4055 }
4056
4057 static int
add_cvt_modes(struct drm_connector * connector,const struct drm_edid * drm_edid)4058 add_cvt_modes(struct drm_connector *connector, const struct drm_edid *drm_edid)
4059 {
4060 struct detailed_mode_closure closure = {
4061 .connector = connector,
4062 .drm_edid = drm_edid,
4063 };
4064
4065 if (drm_edid->edid->revision >= 3)
4066 drm_for_each_detailed_block(drm_edid, do_cvt_mode, &closure);
4067
4068 /* XXX should also look for CVT codes in VTB blocks */
4069
4070 return closure.modes;
4071 }
4072
4073 static void fixup_detailed_cea_mode_clock(struct drm_connector *connector,
4074 struct drm_display_mode *mode);
4075
4076 static void
do_detailed_mode(const struct detailed_timing * timing,void * c)4077 do_detailed_mode(const struct detailed_timing *timing, void *c)
4078 {
4079 struct detailed_mode_closure *closure = c;
4080 struct drm_display_mode *newmode;
4081
4082 if (!is_detailed_timing_descriptor(timing))
4083 return;
4084
4085 newmode = drm_mode_detailed(closure->connector,
4086 closure->drm_edid, timing);
4087 if (!newmode)
4088 return;
4089
4090 if (closure->preferred)
4091 newmode->type |= DRM_MODE_TYPE_PREFERRED;
4092
4093 /*
4094 * Detailed modes are limited to 10kHz pixel clock resolution,
4095 * so fix up anything that looks like CEA/HDMI mode, but the clock
4096 * is just slightly off.
4097 */
4098 fixup_detailed_cea_mode_clock(closure->connector, newmode);
4099
4100 drm_mode_probed_add(closure->connector, newmode);
4101 closure->modes++;
4102 closure->preferred = false;
4103 }
4104
4105 /*
4106 * add_detailed_modes - Add modes from detailed timings
4107 * @connector: attached connector
4108 * @drm_edid: EDID block to scan
4109 */
add_detailed_modes(struct drm_connector * connector,const struct drm_edid * drm_edid)4110 static int add_detailed_modes(struct drm_connector *connector,
4111 const struct drm_edid *drm_edid)
4112 {
4113 struct detailed_mode_closure closure = {
4114 .connector = connector,
4115 .drm_edid = drm_edid,
4116 };
4117
4118 if (drm_edid->edid->revision >= 4)
4119 closure.preferred = true; /* first detailed timing is always preferred */
4120 else
4121 closure.preferred =
4122 drm_edid->edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING;
4123
4124 drm_for_each_detailed_block(drm_edid, do_detailed_mode, &closure);
4125
4126 return closure.modes;
4127 }
4128
4129 /* CTA-861-H Table 60 - CTA Tag Codes */
4130 #define CTA_DB_AUDIO 1
4131 #define CTA_DB_VIDEO 2
4132 #define CTA_DB_VENDOR 3
4133 #define CTA_DB_SPEAKER 4
4134 #define CTA_DB_EXTENDED_TAG 7
4135
4136 /* CTA-861-H Table 62 - CTA Extended Tag Codes */
4137 #define CTA_EXT_DB_VIDEO_CAP 0
4138 #define CTA_EXT_DB_VENDOR 1
4139 #define CTA_EXT_DB_HDR_STATIC_METADATA 6
4140 #define CTA_EXT_DB_420_VIDEO_DATA 14
4141 #define CTA_EXT_DB_420_VIDEO_CAP_MAP 15
4142 #define CTA_EXT_DB_HF_EEODB 0x78
4143 #define CTA_EXT_DB_HF_SCDB 0x79
4144
4145 #define EDID_BASIC_AUDIO (1 << 6)
4146 #define EDID_CEA_YCRCB444 (1 << 5)
4147 #define EDID_CEA_YCRCB422 (1 << 4)
4148 #define EDID_CEA_VCDB_QS (1 << 6)
4149
4150 /*
4151 * Search EDID for CEA extension block.
4152 *
4153 * FIXME: Prefer not returning pointers to raw EDID data.
4154 */
drm_edid_find_extension(const struct drm_edid * drm_edid,int ext_id,int * ext_index)4155 const u8 *drm_edid_find_extension(const struct drm_edid *drm_edid,
4156 int ext_id, int *ext_index)
4157 {
4158 const u8 *edid_ext = NULL;
4159 int i;
4160
4161 /* No EDID or EDID extensions */
4162 if (!drm_edid || !drm_edid_extension_block_count(drm_edid))
4163 return NULL;
4164
4165 /* Find CEA extension */
4166 for (i = *ext_index; i < drm_edid_extension_block_count(drm_edid); i++) {
4167 edid_ext = drm_edid_extension_block_data(drm_edid, i);
4168 if (edid_block_tag(edid_ext) == ext_id)
4169 break;
4170 }
4171
4172 if (i >= drm_edid_extension_block_count(drm_edid))
4173 return NULL;
4174
4175 *ext_index = i + 1;
4176
4177 return edid_ext;
4178 }
4179
4180 /* Return true if the EDID has a CTA extension or a DisplayID CTA data block */
drm_edid_has_cta_extension(const struct drm_edid * drm_edid)4181 static bool drm_edid_has_cta_extension(const struct drm_edid *drm_edid)
4182 {
4183 const struct displayid_block *block;
4184 struct displayid_iter iter;
4185 struct drm_edid_iter edid_iter;
4186 const u8 *ext;
4187 bool found = false;
4188
4189 /* Look for a top level CEA extension block */
4190 drm_edid_iter_begin(drm_edid, &edid_iter);
4191 drm_edid_iter_for_each(ext, &edid_iter) {
4192 if (ext[0] == CEA_EXT) {
4193 found = true;
4194 break;
4195 }
4196 }
4197 drm_edid_iter_end(&edid_iter);
4198
4199 if (found)
4200 return true;
4201
4202 /* CEA blocks can also be found embedded in a DisplayID block */
4203 displayid_iter_edid_begin(drm_edid, &iter);
4204 displayid_iter_for_each(block, &iter) {
4205 if (block->tag == DATA_BLOCK_CTA) {
4206 found = true;
4207 break;
4208 }
4209 }
4210 displayid_iter_end(&iter);
4211
4212 return found;
4213 }
4214
cea_mode_for_vic(u8 vic)4215 static __always_inline const struct drm_display_mode *cea_mode_for_vic(u8 vic)
4216 {
4217 BUILD_BUG_ON(1 + ARRAY_SIZE(edid_cea_modes_1) - 1 != 127);
4218 BUILD_BUG_ON(193 + ARRAY_SIZE(edid_cea_modes_193) - 1 != 219);
4219
4220 if (vic >= 1 && vic < 1 + ARRAY_SIZE(edid_cea_modes_1))
4221 return &edid_cea_modes_1[vic - 1];
4222 if (vic >= 193 && vic < 193 + ARRAY_SIZE(edid_cea_modes_193))
4223 return &edid_cea_modes_193[vic - 193];
4224 return NULL;
4225 }
4226
cea_num_vics(void)4227 static u8 cea_num_vics(void)
4228 {
4229 return 193 + ARRAY_SIZE(edid_cea_modes_193);
4230 }
4231
cea_next_vic(u8 vic)4232 static u8 cea_next_vic(u8 vic)
4233 {
4234 if (++vic == 1 + ARRAY_SIZE(edid_cea_modes_1))
4235 vic = 193;
4236 return vic;
4237 }
4238
4239 /*
4240 * Calculate the alternate clock for the CEA mode
4241 * (60Hz vs. 59.94Hz etc.)
4242 */
4243 static unsigned int
cea_mode_alternate_clock(const struct drm_display_mode * cea_mode)4244 cea_mode_alternate_clock(const struct drm_display_mode *cea_mode)
4245 {
4246 unsigned int clock = cea_mode->clock;
4247
4248 if (drm_mode_vrefresh(cea_mode) % 6 != 0)
4249 return clock;
4250
4251 /*
4252 * edid_cea_modes contains the 59.94Hz
4253 * variant for 240 and 480 line modes,
4254 * and the 60Hz variant otherwise.
4255 */
4256 if (cea_mode->vdisplay == 240 || cea_mode->vdisplay == 480)
4257 clock = DIV_ROUND_CLOSEST(clock * 1001, 1000);
4258 else
4259 clock = DIV_ROUND_CLOSEST(clock * 1000, 1001);
4260
4261 return clock;
4262 }
4263
4264 static bool
cea_mode_alternate_timings(u8 vic,struct drm_display_mode * mode)4265 cea_mode_alternate_timings(u8 vic, struct drm_display_mode *mode)
4266 {
4267 /*
4268 * For certain VICs the spec allows the vertical
4269 * front porch to vary by one or two lines.
4270 *
4271 * cea_modes[] stores the variant with the shortest
4272 * vertical front porch. We can adjust the mode to
4273 * get the other variants by simply increasing the
4274 * vertical front porch length.
4275 */
4276 BUILD_BUG_ON(cea_mode_for_vic(8)->vtotal != 262 ||
4277 cea_mode_for_vic(9)->vtotal != 262 ||
4278 cea_mode_for_vic(12)->vtotal != 262 ||
4279 cea_mode_for_vic(13)->vtotal != 262 ||
4280 cea_mode_for_vic(23)->vtotal != 312 ||
4281 cea_mode_for_vic(24)->vtotal != 312 ||
4282 cea_mode_for_vic(27)->vtotal != 312 ||
4283 cea_mode_for_vic(28)->vtotal != 312);
4284
4285 if (((vic == 8 || vic == 9 ||
4286 vic == 12 || vic == 13) && mode->vtotal < 263) ||
4287 ((vic == 23 || vic == 24 ||
4288 vic == 27 || vic == 28) && mode->vtotal < 314)) {
4289 mode->vsync_start++;
4290 mode->vsync_end++;
4291 mode->vtotal++;
4292
4293 return true;
4294 }
4295
4296 return false;
4297 }
4298
drm_match_cea_mode_clock_tolerance(const struct drm_display_mode * to_match,unsigned int clock_tolerance)4299 static u8 drm_match_cea_mode_clock_tolerance(const struct drm_display_mode *to_match,
4300 unsigned int clock_tolerance)
4301 {
4302 unsigned int match_flags = DRM_MODE_MATCH_TIMINGS | DRM_MODE_MATCH_FLAGS;
4303 u8 vic;
4304
4305 if (!to_match->clock)
4306 return 0;
4307
4308 if (to_match->picture_aspect_ratio)
4309 match_flags |= DRM_MODE_MATCH_ASPECT_RATIO;
4310
4311 for (vic = 1; vic < cea_num_vics(); vic = cea_next_vic(vic)) {
4312 struct drm_display_mode cea_mode;
4313 unsigned int clock1, clock2;
4314
4315 drm_mode_init(&cea_mode, cea_mode_for_vic(vic));
4316
4317 /* Check both 60Hz and 59.94Hz */
4318 clock1 = cea_mode.clock;
4319 clock2 = cea_mode_alternate_clock(&cea_mode);
4320
4321 if (abs(to_match->clock - clock1) > clock_tolerance &&
4322 abs(to_match->clock - clock2) > clock_tolerance)
4323 continue;
4324
4325 do {
4326 if (drm_mode_match(to_match, &cea_mode, match_flags))
4327 return vic;
4328 } while (cea_mode_alternate_timings(vic, &cea_mode));
4329 }
4330
4331 return 0;
4332 }
4333
4334 /**
4335 * drm_match_cea_mode - look for a CEA mode matching given mode
4336 * @to_match: display mode
4337 *
4338 * Return: The CEA Video ID (VIC) of the mode or 0 if it isn't a CEA-861
4339 * mode.
4340 */
drm_match_cea_mode(const struct drm_display_mode * to_match)4341 u8 drm_match_cea_mode(const struct drm_display_mode *to_match)
4342 {
4343 unsigned int match_flags = DRM_MODE_MATCH_TIMINGS | DRM_MODE_MATCH_FLAGS;
4344 u8 vic;
4345
4346 if (!to_match->clock)
4347 return 0;
4348
4349 if (to_match->picture_aspect_ratio)
4350 match_flags |= DRM_MODE_MATCH_ASPECT_RATIO;
4351
4352 for (vic = 1; vic < cea_num_vics(); vic = cea_next_vic(vic)) {
4353 struct drm_display_mode cea_mode;
4354 unsigned int clock1, clock2;
4355
4356 drm_mode_init(&cea_mode, cea_mode_for_vic(vic));
4357
4358 /* Check both 60Hz and 59.94Hz */
4359 clock1 = cea_mode.clock;
4360 clock2 = cea_mode_alternate_clock(&cea_mode);
4361
4362 if (KHZ2PICOS(to_match->clock) != KHZ2PICOS(clock1) &&
4363 KHZ2PICOS(to_match->clock) != KHZ2PICOS(clock2))
4364 continue;
4365
4366 do {
4367 if (drm_mode_match(to_match, &cea_mode, match_flags))
4368 return vic;
4369 } while (cea_mode_alternate_timings(vic, &cea_mode));
4370 }
4371
4372 return 0;
4373 }
4374 EXPORT_SYMBOL(drm_match_cea_mode);
4375
drm_valid_cea_vic(u8 vic)4376 static bool drm_valid_cea_vic(u8 vic)
4377 {
4378 return cea_mode_for_vic(vic) != NULL;
4379 }
4380
drm_get_cea_aspect_ratio(const u8 video_code)4381 static enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code)
4382 {
4383 const struct drm_display_mode *mode = cea_mode_for_vic(video_code);
4384
4385 if (mode)
4386 return mode->picture_aspect_ratio;
4387
4388 return HDMI_PICTURE_ASPECT_NONE;
4389 }
4390
drm_get_hdmi_aspect_ratio(const u8 video_code)4391 static enum hdmi_picture_aspect drm_get_hdmi_aspect_ratio(const u8 video_code)
4392 {
4393 return edid_4k_modes[video_code].picture_aspect_ratio;
4394 }
4395
4396 /*
4397 * Calculate the alternate clock for HDMI modes (those from the HDMI vendor
4398 * specific block).
4399 */
4400 static unsigned int
hdmi_mode_alternate_clock(const struct drm_display_mode * hdmi_mode)4401 hdmi_mode_alternate_clock(const struct drm_display_mode *hdmi_mode)
4402 {
4403 return cea_mode_alternate_clock(hdmi_mode);
4404 }
4405
drm_match_hdmi_mode_clock_tolerance(const struct drm_display_mode * to_match,unsigned int clock_tolerance)4406 static u8 drm_match_hdmi_mode_clock_tolerance(const struct drm_display_mode *to_match,
4407 unsigned int clock_tolerance)
4408 {
4409 unsigned int match_flags = DRM_MODE_MATCH_TIMINGS | DRM_MODE_MATCH_FLAGS;
4410 u8 vic;
4411
4412 if (!to_match->clock)
4413 return 0;
4414
4415 if (to_match->picture_aspect_ratio)
4416 match_flags |= DRM_MODE_MATCH_ASPECT_RATIO;
4417
4418 for (vic = 1; vic < ARRAY_SIZE(edid_4k_modes); vic++) {
4419 const struct drm_display_mode *hdmi_mode = &edid_4k_modes[vic];
4420 unsigned int clock1, clock2;
4421
4422 /* Make sure to also match alternate clocks */
4423 clock1 = hdmi_mode->clock;
4424 clock2 = hdmi_mode_alternate_clock(hdmi_mode);
4425
4426 if (abs(to_match->clock - clock1) > clock_tolerance &&
4427 abs(to_match->clock - clock2) > clock_tolerance)
4428 continue;
4429
4430 if (drm_mode_match(to_match, hdmi_mode, match_flags))
4431 return vic;
4432 }
4433
4434 return 0;
4435 }
4436
4437 /*
4438 * drm_match_hdmi_mode - look for a HDMI mode matching given mode
4439 * @to_match: display mode
4440 *
4441 * An HDMI mode is one defined in the HDMI vendor specific block.
4442 *
4443 * Returns the HDMI Video ID (VIC) of the mode or 0 if it isn't one.
4444 */
drm_match_hdmi_mode(const struct drm_display_mode * to_match)4445 static u8 drm_match_hdmi_mode(const struct drm_display_mode *to_match)
4446 {
4447 unsigned int match_flags = DRM_MODE_MATCH_TIMINGS | DRM_MODE_MATCH_FLAGS;
4448 u8 vic;
4449
4450 if (!to_match->clock)
4451 return 0;
4452
4453 if (to_match->picture_aspect_ratio)
4454 match_flags |= DRM_MODE_MATCH_ASPECT_RATIO;
4455
4456 for (vic = 1; vic < ARRAY_SIZE(edid_4k_modes); vic++) {
4457 const struct drm_display_mode *hdmi_mode = &edid_4k_modes[vic];
4458 unsigned int clock1, clock2;
4459
4460 /* Make sure to also match alternate clocks */
4461 clock1 = hdmi_mode->clock;
4462 clock2 = hdmi_mode_alternate_clock(hdmi_mode);
4463
4464 if ((KHZ2PICOS(to_match->clock) == KHZ2PICOS(clock1) ||
4465 KHZ2PICOS(to_match->clock) == KHZ2PICOS(clock2)) &&
4466 drm_mode_match(to_match, hdmi_mode, match_flags))
4467 return vic;
4468 }
4469 return 0;
4470 }
4471
drm_valid_hdmi_vic(u8 vic)4472 static bool drm_valid_hdmi_vic(u8 vic)
4473 {
4474 return vic > 0 && vic < ARRAY_SIZE(edid_4k_modes);
4475 }
4476
add_alternate_cea_modes(struct drm_connector * connector,const struct drm_edid * drm_edid)4477 static int add_alternate_cea_modes(struct drm_connector *connector,
4478 const struct drm_edid *drm_edid)
4479 {
4480 struct drm_device *dev = connector->dev;
4481 struct drm_display_mode *mode, *tmp;
4482 LIST_HEAD(list);
4483 int modes = 0;
4484
4485 /* Don't add CTA modes if the CTA extension block is missing */
4486 if (!drm_edid_has_cta_extension(drm_edid))
4487 return 0;
4488
4489 /*
4490 * Go through all probed modes and create a new mode
4491 * with the alternate clock for certain CEA modes.
4492 */
4493 list_for_each_entry(mode, &connector->probed_modes, head) {
4494 const struct drm_display_mode *cea_mode = NULL;
4495 struct drm_display_mode *newmode;
4496 u8 vic = drm_match_cea_mode(mode);
4497 unsigned int clock1, clock2;
4498
4499 if (drm_valid_cea_vic(vic)) {
4500 cea_mode = cea_mode_for_vic(vic);
4501 clock2 = cea_mode_alternate_clock(cea_mode);
4502 } else {
4503 vic = drm_match_hdmi_mode(mode);
4504 if (drm_valid_hdmi_vic(vic)) {
4505 cea_mode = &edid_4k_modes[vic];
4506 clock2 = hdmi_mode_alternate_clock(cea_mode);
4507 }
4508 }
4509
4510 if (!cea_mode)
4511 continue;
4512
4513 clock1 = cea_mode->clock;
4514
4515 if (clock1 == clock2)
4516 continue;
4517
4518 if (mode->clock != clock1 && mode->clock != clock2)
4519 continue;
4520
4521 newmode = drm_mode_duplicate(dev, cea_mode);
4522 if (!newmode)
4523 continue;
4524
4525 /* Carry over the stereo flags */
4526 newmode->flags |= mode->flags & DRM_MODE_FLAG_3D_MASK;
4527
4528 /*
4529 * The current mode could be either variant. Make
4530 * sure to pick the "other" clock for the new mode.
4531 */
4532 if (mode->clock != clock1)
4533 newmode->clock = clock1;
4534 else
4535 newmode->clock = clock2;
4536
4537 list_add_tail(&newmode->head, &list);
4538 }
4539
4540 list_for_each_entry_safe(mode, tmp, &list, head) {
4541 list_del(&mode->head);
4542 drm_mode_probed_add(connector, mode);
4543 modes++;
4544 }
4545
4546 return modes;
4547 }
4548
svd_to_vic(u8 svd)4549 static u8 svd_to_vic(u8 svd)
4550 {
4551 /* 0-6 bit vic, 7th bit native mode indicator */
4552 if ((svd >= 1 && svd <= 64) || (svd >= 129 && svd <= 192))
4553 return svd & 127;
4554
4555 return svd;
4556 }
4557
4558 /*
4559 * Return a display mode for the 0-based vic_index'th VIC across all CTA VDBs in
4560 * the EDID, or NULL on errors.
4561 */
4562 static struct drm_display_mode *
drm_display_mode_from_vic_index(struct drm_connector * connector,int vic_index)4563 drm_display_mode_from_vic_index(struct drm_connector *connector, int vic_index)
4564 {
4565 const struct drm_display_info *info = &connector->display_info;
4566 struct drm_device *dev = connector->dev;
4567
4568 if (!info->vics || vic_index >= info->vics_len || !info->vics[vic_index])
4569 return NULL;
4570
4571 return drm_display_mode_from_cea_vic(dev, info->vics[vic_index]);
4572 }
4573
4574 /*
4575 * do_y420vdb_modes - Parse YCBCR 420 only modes
4576 * @connector: connector corresponding to the HDMI sink
4577 * @svds: start of the data block of CEA YCBCR 420 VDB
4578 * @len: length of the CEA YCBCR 420 VDB
4579 *
4580 * Parse the CEA-861-F YCBCR 420 Video Data Block (Y420VDB)
4581 * which contains modes which can be supported in YCBCR 420
4582 * output format only.
4583 */
do_y420vdb_modes(struct drm_connector * connector,const u8 * svds,u8 svds_len)4584 static int do_y420vdb_modes(struct drm_connector *connector,
4585 const u8 *svds, u8 svds_len)
4586 {
4587 struct drm_device *dev = connector->dev;
4588 int modes = 0, i;
4589
4590 for (i = 0; i < svds_len; i++) {
4591 u8 vic = svd_to_vic(svds[i]);
4592 struct drm_display_mode *newmode;
4593
4594 if (!drm_valid_cea_vic(vic))
4595 continue;
4596
4597 newmode = drm_mode_duplicate(dev, cea_mode_for_vic(vic));
4598 if (!newmode)
4599 break;
4600 drm_mode_probed_add(connector, newmode);
4601 modes++;
4602 }
4603
4604 return modes;
4605 }
4606
4607 /**
4608 * drm_display_mode_from_cea_vic() - return a mode for CEA VIC
4609 * @dev: DRM device
4610 * @video_code: CEA VIC of the mode
4611 *
4612 * Creates a new mode matching the specified CEA VIC.
4613 *
4614 * Returns: A new drm_display_mode on success or NULL on failure
4615 */
4616 struct drm_display_mode *
drm_display_mode_from_cea_vic(struct drm_device * dev,u8 video_code)4617 drm_display_mode_from_cea_vic(struct drm_device *dev,
4618 u8 video_code)
4619 {
4620 const struct drm_display_mode *cea_mode;
4621 struct drm_display_mode *newmode;
4622
4623 cea_mode = cea_mode_for_vic(video_code);
4624 if (!cea_mode)
4625 return NULL;
4626
4627 newmode = drm_mode_duplicate(dev, cea_mode);
4628 if (!newmode)
4629 return NULL;
4630
4631 return newmode;
4632 }
4633 EXPORT_SYMBOL(drm_display_mode_from_cea_vic);
4634
4635 /* Add modes based on VICs parsed in parse_cta_vdb() */
add_cta_vdb_modes(struct drm_connector * connector)4636 static int add_cta_vdb_modes(struct drm_connector *connector)
4637 {
4638 const struct drm_display_info *info = &connector->display_info;
4639 int i, modes = 0;
4640
4641 if (!info->vics)
4642 return 0;
4643
4644 for (i = 0; i < info->vics_len; i++) {
4645 struct drm_display_mode *mode;
4646
4647 mode = drm_display_mode_from_vic_index(connector, i);
4648 if (mode) {
4649 drm_mode_probed_add(connector, mode);
4650 modes++;
4651 }
4652 }
4653
4654 return modes;
4655 }
4656
4657 struct stereo_mandatory_mode {
4658 int width, height, vrefresh;
4659 unsigned int flags;
4660 };
4661
4662 static const struct stereo_mandatory_mode stereo_mandatory_modes[] = {
4663 { 1920, 1080, 24, DRM_MODE_FLAG_3D_TOP_AND_BOTTOM },
4664 { 1920, 1080, 24, DRM_MODE_FLAG_3D_FRAME_PACKING },
4665 { 1920, 1080, 50,
4666 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF },
4667 { 1920, 1080, 60,
4668 DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF },
4669 { 1280, 720, 50, DRM_MODE_FLAG_3D_TOP_AND_BOTTOM },
4670 { 1280, 720, 50, DRM_MODE_FLAG_3D_FRAME_PACKING },
4671 { 1280, 720, 60, DRM_MODE_FLAG_3D_TOP_AND_BOTTOM },
4672 { 1280, 720, 60, DRM_MODE_FLAG_3D_FRAME_PACKING }
4673 };
4674
4675 static bool
stereo_match_mandatory(const struct drm_display_mode * mode,const struct stereo_mandatory_mode * stereo_mode)4676 stereo_match_mandatory(const struct drm_display_mode *mode,
4677 const struct stereo_mandatory_mode *stereo_mode)
4678 {
4679 unsigned int interlaced = mode->flags & DRM_MODE_FLAG_INTERLACE;
4680
4681 return mode->hdisplay == stereo_mode->width &&
4682 mode->vdisplay == stereo_mode->height &&
4683 interlaced == (stereo_mode->flags & DRM_MODE_FLAG_INTERLACE) &&
4684 drm_mode_vrefresh(mode) == stereo_mode->vrefresh;
4685 }
4686
add_hdmi_mandatory_stereo_modes(struct drm_connector * connector)4687 static int add_hdmi_mandatory_stereo_modes(struct drm_connector *connector)
4688 {
4689 struct drm_device *dev = connector->dev;
4690 const struct drm_display_mode *mode;
4691 struct list_head stereo_modes;
4692 int modes = 0, i;
4693
4694 INIT_LIST_HEAD(&stereo_modes);
4695
4696 list_for_each_entry(mode, &connector->probed_modes, head) {
4697 for (i = 0; i < ARRAY_SIZE(stereo_mandatory_modes); i++) {
4698 const struct stereo_mandatory_mode *mandatory;
4699 struct drm_display_mode *new_mode;
4700
4701 if (!stereo_match_mandatory(mode,
4702 &stereo_mandatory_modes[i]))
4703 continue;
4704
4705 mandatory = &stereo_mandatory_modes[i];
4706 new_mode = drm_mode_duplicate(dev, mode);
4707 if (!new_mode)
4708 continue;
4709
4710 new_mode->flags |= mandatory->flags;
4711 list_add_tail(&new_mode->head, &stereo_modes);
4712 modes++;
4713 }
4714 }
4715
4716 list_splice_tail(&stereo_modes, &connector->probed_modes);
4717
4718 return modes;
4719 }
4720
add_hdmi_mode(struct drm_connector * connector,u8 vic)4721 static int add_hdmi_mode(struct drm_connector *connector, u8 vic)
4722 {
4723 struct drm_device *dev = connector->dev;
4724 struct drm_display_mode *newmode;
4725
4726 if (!drm_valid_hdmi_vic(vic)) {
4727 drm_err(connector->dev, "[CONNECTOR:%d:%s] Unknown HDMI VIC: %d\n",
4728 connector->base.id, connector->name, vic);
4729 return 0;
4730 }
4731
4732 newmode = drm_mode_duplicate(dev, &edid_4k_modes[vic]);
4733 if (!newmode)
4734 return 0;
4735
4736 drm_mode_probed_add(connector, newmode);
4737
4738 return 1;
4739 }
4740
add_3d_struct_modes(struct drm_connector * connector,u16 structure,int vic_index)4741 static int add_3d_struct_modes(struct drm_connector *connector, u16 structure,
4742 int vic_index)
4743 {
4744 struct drm_display_mode *newmode;
4745 int modes = 0;
4746
4747 if (structure & (1 << 0)) {
4748 newmode = drm_display_mode_from_vic_index(connector, vic_index);
4749 if (newmode) {
4750 newmode->flags |= DRM_MODE_FLAG_3D_FRAME_PACKING;
4751 drm_mode_probed_add(connector, newmode);
4752 modes++;
4753 }
4754 }
4755 if (structure & (1 << 6)) {
4756 newmode = drm_display_mode_from_vic_index(connector, vic_index);
4757 if (newmode) {
4758 newmode->flags |= DRM_MODE_FLAG_3D_TOP_AND_BOTTOM;
4759 drm_mode_probed_add(connector, newmode);
4760 modes++;
4761 }
4762 }
4763 if (structure & (1 << 8)) {
4764 newmode = drm_display_mode_from_vic_index(connector, vic_index);
4765 if (newmode) {
4766 newmode->flags |= DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF;
4767 drm_mode_probed_add(connector, newmode);
4768 modes++;
4769 }
4770 }
4771
4772 return modes;
4773 }
4774
hdmi_vsdb_latency_present(const u8 * db)4775 static bool hdmi_vsdb_latency_present(const u8 *db)
4776 {
4777 return db[8] & BIT(7);
4778 }
4779
hdmi_vsdb_i_latency_present(const u8 * db)4780 static bool hdmi_vsdb_i_latency_present(const u8 *db)
4781 {
4782 return hdmi_vsdb_latency_present(db) && db[8] & BIT(6);
4783 }
4784
hdmi_vsdb_latency_length(const u8 * db)4785 static int hdmi_vsdb_latency_length(const u8 *db)
4786 {
4787 if (hdmi_vsdb_i_latency_present(db))
4788 return 4;
4789 else if (hdmi_vsdb_latency_present(db))
4790 return 2;
4791 else
4792 return 0;
4793 }
4794
4795 /*
4796 * do_hdmi_vsdb_modes - Parse the HDMI Vendor Specific data block
4797 * @connector: connector corresponding to the HDMI sink
4798 * @db: start of the CEA vendor specific block
4799 * @len: length of the CEA block payload, ie. one can access up to db[len]
4800 *
4801 * Parses the HDMI VSDB looking for modes to add to @connector. This function
4802 * also adds the stereo 3d modes when applicable.
4803 */
4804 static int
do_hdmi_vsdb_modes(struct drm_connector * connector,const u8 * db,u8 len)4805 do_hdmi_vsdb_modes(struct drm_connector *connector, const u8 *db, u8 len)
4806 {
4807 int modes = 0, offset = 0, i, multi_present = 0, multi_len;
4808 u8 vic_len, hdmi_3d_len = 0;
4809 u16 mask;
4810 u16 structure_all;
4811
4812 if (len < 8)
4813 goto out;
4814
4815 /* no HDMI_Video_Present */
4816 if (!(db[8] & (1 << 5)))
4817 goto out;
4818
4819 offset += hdmi_vsdb_latency_length(db);
4820
4821 /* the declared length is not long enough for the 2 first bytes
4822 * of additional video format capabilities */
4823 if (len < (8 + offset + 2))
4824 goto out;
4825
4826 /* 3D_Present */
4827 offset++;
4828 if (db[8 + offset] & (1 << 7)) {
4829 modes += add_hdmi_mandatory_stereo_modes(connector);
4830
4831 /* 3D_Multi_present */
4832 multi_present = (db[8 + offset] & 0x60) >> 5;
4833 }
4834
4835 offset++;
4836 vic_len = db[8 + offset] >> 5;
4837 hdmi_3d_len = db[8 + offset] & 0x1f;
4838
4839 for (i = 0; i < vic_len && len >= (9 + offset + i); i++) {
4840 u8 vic;
4841
4842 vic = db[9 + offset + i];
4843 modes += add_hdmi_mode(connector, vic);
4844 }
4845 offset += 1 + vic_len;
4846
4847 if (multi_present == 1)
4848 multi_len = 2;
4849 else if (multi_present == 2)
4850 multi_len = 4;
4851 else
4852 multi_len = 0;
4853
4854 if (len < (8 + offset + hdmi_3d_len - 1))
4855 goto out;
4856
4857 if (hdmi_3d_len < multi_len)
4858 goto out;
4859
4860 if (multi_present == 1 || multi_present == 2) {
4861 /* 3D_Structure_ALL */
4862 structure_all = (db[8 + offset] << 8) | db[9 + offset];
4863
4864 /* check if 3D_MASK is present */
4865 if (multi_present == 2)
4866 mask = (db[10 + offset] << 8) | db[11 + offset];
4867 else
4868 mask = 0xffff;
4869
4870 for (i = 0; i < 16; i++) {
4871 if (mask & (1 << i))
4872 modes += add_3d_struct_modes(connector,
4873 structure_all, i);
4874 }
4875 }
4876
4877 offset += multi_len;
4878
4879 for (i = 0; i < (hdmi_3d_len - multi_len); i++) {
4880 int vic_index;
4881 struct drm_display_mode *newmode = NULL;
4882 unsigned int newflag = 0;
4883 bool detail_present;
4884
4885 detail_present = ((db[8 + offset + i] & 0x0f) > 7);
4886
4887 if (detail_present && (i + 1 == hdmi_3d_len - multi_len))
4888 break;
4889
4890 /* 2D_VIC_order_X */
4891 vic_index = db[8 + offset + i] >> 4;
4892
4893 /* 3D_Structure_X */
4894 switch (db[8 + offset + i] & 0x0f) {
4895 case 0:
4896 newflag = DRM_MODE_FLAG_3D_FRAME_PACKING;
4897 break;
4898 case 6:
4899 newflag = DRM_MODE_FLAG_3D_TOP_AND_BOTTOM;
4900 break;
4901 case 8:
4902 /* 3D_Detail_X */
4903 if ((db[9 + offset + i] >> 4) == 1)
4904 newflag = DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF;
4905 break;
4906 }
4907
4908 if (newflag != 0) {
4909 newmode = drm_display_mode_from_vic_index(connector,
4910 vic_index);
4911
4912 if (newmode) {
4913 newmode->flags |= newflag;
4914 drm_mode_probed_add(connector, newmode);
4915 modes++;
4916 }
4917 }
4918
4919 if (detail_present)
4920 i++;
4921 }
4922
4923 out:
4924 return modes;
4925 }
4926
4927 static int
cea_revision(const u8 * cea)4928 cea_revision(const u8 *cea)
4929 {
4930 /*
4931 * FIXME is this correct for the DispID variant?
4932 * The DispID spec doesn't really specify whether
4933 * this is the revision of the CEA extension or
4934 * the DispID CEA data block. And the only value
4935 * given as an example is 0.
4936 */
4937 return cea[1];
4938 }
4939
4940 /*
4941 * CTA Data Block iterator.
4942 *
4943 * Iterate through all CTA Data Blocks in both EDID CTA Extensions and DisplayID
4944 * CTA Data Blocks.
4945 *
4946 * struct cea_db *db:
4947 * struct cea_db_iter iter;
4948 *
4949 * cea_db_iter_edid_begin(edid, &iter);
4950 * cea_db_iter_for_each(db, &iter) {
4951 * // do stuff with db
4952 * }
4953 * cea_db_iter_end(&iter);
4954 */
4955 struct cea_db_iter {
4956 struct drm_edid_iter edid_iter;
4957 struct displayid_iter displayid_iter;
4958
4959 /* Current Data Block Collection. */
4960 const u8 *collection;
4961
4962 /* Current Data Block index in current collection. */
4963 int index;
4964
4965 /* End index in current collection. */
4966 int end;
4967 };
4968
4969 /* CTA-861-H section 7.4 CTA Data BLock Collection */
4970 struct cea_db {
4971 u8 tag_length;
4972 u8 data[];
4973 } __packed;
4974
cea_db_tag(const struct cea_db * db)4975 static int cea_db_tag(const struct cea_db *db)
4976 {
4977 return db->tag_length >> 5;
4978 }
4979
cea_db_payload_len(const void * _db)4980 static int cea_db_payload_len(const void *_db)
4981 {
4982 /* FIXME: Transition to passing struct cea_db * everywhere. */
4983 const struct cea_db *db = _db;
4984
4985 return db->tag_length & 0x1f;
4986 }
4987
cea_db_data(const struct cea_db * db)4988 static const void *cea_db_data(const struct cea_db *db)
4989 {
4990 return db->data;
4991 }
4992
cea_db_is_extended_tag(const struct cea_db * db,int tag)4993 static bool cea_db_is_extended_tag(const struct cea_db *db, int tag)
4994 {
4995 return cea_db_tag(db) == CTA_DB_EXTENDED_TAG &&
4996 cea_db_payload_len(db) >= 1 &&
4997 db->data[0] == tag;
4998 }
4999
cea_db_is_vendor(const struct cea_db * db,int vendor_oui)5000 static bool cea_db_is_vendor(const struct cea_db *db, int vendor_oui)
5001 {
5002 const u8 *data = cea_db_data(db);
5003
5004 return cea_db_tag(db) == CTA_DB_VENDOR &&
5005 cea_db_payload_len(db) >= 3 &&
5006 oui(data[2], data[1], data[0]) == vendor_oui;
5007 }
5008
cea_db_iter_edid_begin(const struct drm_edid * drm_edid,struct cea_db_iter * iter)5009 static void cea_db_iter_edid_begin(const struct drm_edid *drm_edid,
5010 struct cea_db_iter *iter)
5011 {
5012 memset(iter, 0, sizeof(*iter));
5013
5014 drm_edid_iter_begin(drm_edid, &iter->edid_iter);
5015 displayid_iter_edid_begin(drm_edid, &iter->displayid_iter);
5016 }
5017
5018 static const struct cea_db *
__cea_db_iter_current_block(const struct cea_db_iter * iter)5019 __cea_db_iter_current_block(const struct cea_db_iter *iter)
5020 {
5021 const struct cea_db *db;
5022
5023 if (!iter->collection)
5024 return NULL;
5025
5026 db = (const struct cea_db *)&iter->collection[iter->index];
5027
5028 if (iter->index + sizeof(*db) <= iter->end &&
5029 iter->index + sizeof(*db) + cea_db_payload_len(db) <= iter->end)
5030 return db;
5031
5032 return NULL;
5033 }
5034
5035 /*
5036 * References:
5037 * - CTA-861-H section 7.3.3 CTA Extension Version 3
5038 */
cea_db_collection_size(const u8 * cta)5039 static int cea_db_collection_size(const u8 *cta)
5040 {
5041 u8 d = cta[2];
5042
5043 if (d < 4 || d > 127)
5044 return 0;
5045
5046 return d - 4;
5047 }
5048
5049 /*
5050 * References:
5051 * - VESA E-EDID v1.4
5052 * - CTA-861-H section 7.3.3 CTA Extension Version 3
5053 */
__cea_db_iter_edid_next(struct cea_db_iter * iter)5054 static const void *__cea_db_iter_edid_next(struct cea_db_iter *iter)
5055 {
5056 const u8 *ext;
5057
5058 drm_edid_iter_for_each(ext, &iter->edid_iter) {
5059 int size;
5060
5061 /* Only support CTA Extension revision 3+ */
5062 if (ext[0] != CEA_EXT || cea_revision(ext) < 3)
5063 continue;
5064
5065 size = cea_db_collection_size(ext);
5066 if (!size)
5067 continue;
5068
5069 iter->index = 4;
5070 iter->end = iter->index + size;
5071
5072 return ext;
5073 }
5074
5075 return NULL;
5076 }
5077
5078 /*
5079 * References:
5080 * - DisplayID v1.3 Appendix C: CEA Data Block within a DisplayID Data Block
5081 * - DisplayID v2.0 section 4.10 CTA DisplayID Data Block
5082 *
5083 * Note that the above do not specify any connection between DisplayID Data
5084 * Block revision and CTA Extension versions.
5085 */
__cea_db_iter_displayid_next(struct cea_db_iter * iter)5086 static const void *__cea_db_iter_displayid_next(struct cea_db_iter *iter)
5087 {
5088 const struct displayid_block *block;
5089
5090 displayid_iter_for_each(block, &iter->displayid_iter) {
5091 if (block->tag != DATA_BLOCK_CTA)
5092 continue;
5093
5094 /*
5095 * The displayid iterator has already verified the block bounds
5096 * in displayid_iter_block().
5097 */
5098 iter->index = sizeof(*block);
5099 iter->end = iter->index + block->num_bytes;
5100
5101 return block;
5102 }
5103
5104 return NULL;
5105 }
5106
__cea_db_iter_next(struct cea_db_iter * iter)5107 static const struct cea_db *__cea_db_iter_next(struct cea_db_iter *iter)
5108 {
5109 const struct cea_db *db;
5110
5111 if (iter->collection) {
5112 /* Current collection should always be valid. */
5113 db = __cea_db_iter_current_block(iter);
5114 if (WARN_ON(!db)) {
5115 iter->collection = NULL;
5116 return NULL;
5117 }
5118
5119 /* Next block in CTA Data Block Collection */
5120 iter->index += sizeof(*db) + cea_db_payload_len(db);
5121
5122 db = __cea_db_iter_current_block(iter);
5123 if (db)
5124 return db;
5125 }
5126
5127 for (;;) {
5128 /*
5129 * Find the next CTA Data Block Collection. First iterate all
5130 * the EDID CTA Extensions, then all the DisplayID CTA blocks.
5131 *
5132 * Per DisplayID v1.3 Appendix B: DisplayID as an EDID
5133 * Extension, it's recommended that DisplayID extensions are
5134 * exposed after all of the CTA Extensions.
5135 */
5136 iter->collection = __cea_db_iter_edid_next(iter);
5137 if (!iter->collection)
5138 iter->collection = __cea_db_iter_displayid_next(iter);
5139
5140 if (!iter->collection)
5141 return NULL;
5142
5143 db = __cea_db_iter_current_block(iter);
5144 if (db)
5145 return db;
5146 }
5147 }
5148
5149 #define cea_db_iter_for_each(__db, __iter) \
5150 while (((__db) = __cea_db_iter_next(__iter)))
5151
cea_db_iter_end(struct cea_db_iter * iter)5152 static void cea_db_iter_end(struct cea_db_iter *iter)
5153 {
5154 displayid_iter_end(&iter->displayid_iter);
5155 drm_edid_iter_end(&iter->edid_iter);
5156
5157 memset(iter, 0, sizeof(*iter));
5158 }
5159
cea_db_is_hdmi_vsdb(const struct cea_db * db)5160 static bool cea_db_is_hdmi_vsdb(const struct cea_db *db)
5161 {
5162 return cea_db_is_vendor(db, HDMI_IEEE_OUI) &&
5163 cea_db_payload_len(db) >= 5;
5164 }
5165
cea_db_is_hdmi_forum_vsdb(const struct cea_db * db)5166 static bool cea_db_is_hdmi_forum_vsdb(const struct cea_db *db)
5167 {
5168 return cea_db_is_vendor(db, HDMI_FORUM_IEEE_OUI) &&
5169 cea_db_payload_len(db) >= 7;
5170 }
5171
cea_db_is_hdmi_forum_eeodb(const void * db)5172 static bool cea_db_is_hdmi_forum_eeodb(const void *db)
5173 {
5174 return cea_db_is_extended_tag(db, CTA_EXT_DB_HF_EEODB) &&
5175 cea_db_payload_len(db) >= 2;
5176 }
5177
cea_db_is_microsoft_vsdb(const struct cea_db * db)5178 static bool cea_db_is_microsoft_vsdb(const struct cea_db *db)
5179 {
5180 return cea_db_is_vendor(db, MICROSOFT_IEEE_OUI) &&
5181 cea_db_payload_len(db) == 21;
5182 }
5183
cea_db_is_vcdb(const struct cea_db * db)5184 static bool cea_db_is_vcdb(const struct cea_db *db)
5185 {
5186 return cea_db_is_extended_tag(db, CTA_EXT_DB_VIDEO_CAP) &&
5187 cea_db_payload_len(db) == 2;
5188 }
5189
cea_db_is_hdmi_forum_scdb(const struct cea_db * db)5190 static bool cea_db_is_hdmi_forum_scdb(const struct cea_db *db)
5191 {
5192 return cea_db_is_extended_tag(db, CTA_EXT_DB_HF_SCDB) &&
5193 cea_db_payload_len(db) >= 7;
5194 }
5195
cea_db_is_y420cmdb(const struct cea_db * db)5196 static bool cea_db_is_y420cmdb(const struct cea_db *db)
5197 {
5198 return cea_db_is_extended_tag(db, CTA_EXT_DB_420_VIDEO_CAP_MAP);
5199 }
5200
cea_db_is_y420vdb(const struct cea_db * db)5201 static bool cea_db_is_y420vdb(const struct cea_db *db)
5202 {
5203 return cea_db_is_extended_tag(db, CTA_EXT_DB_420_VIDEO_DATA);
5204 }
5205
cea_db_is_hdmi_hdr_metadata_block(const struct cea_db * db)5206 static bool cea_db_is_hdmi_hdr_metadata_block(const struct cea_db *db)
5207 {
5208 return cea_db_is_extended_tag(db, CTA_EXT_DB_HDR_STATIC_METADATA) &&
5209 cea_db_payload_len(db) >= 3;
5210 }
5211
5212 /*
5213 * Get the HF-EEODB override extension block count from EDID.
5214 *
5215 * The passed in EDID may be partially read, as long as it has at least two
5216 * blocks (base block and one extension block) if EDID extension count is > 0.
5217 *
5218 * Note that this is *not* how you should parse CTA Data Blocks in general; this
5219 * is only to handle partially read EDIDs. Normally, use the CTA Data Block
5220 * iterators instead.
5221 *
5222 * References:
5223 * - HDMI 2.1 section 10.3.6 HDMI Forum EDID Extension Override Data Block
5224 */
edid_hfeeodb_extension_block_count(const struct edid * edid)5225 static int edid_hfeeodb_extension_block_count(const struct edid *edid)
5226 {
5227 const u8 *cta;
5228
5229 /* No extensions according to base block, no HF-EEODB. */
5230 if (!edid_extension_block_count(edid))
5231 return 0;
5232
5233 /* HF-EEODB is always in the first EDID extension block only */
5234 cta = edid_extension_block_data(edid, 0);
5235 if (edid_block_tag(cta) != CEA_EXT || cea_revision(cta) < 3)
5236 return 0;
5237
5238 /* Need to have the data block collection, and at least 3 bytes. */
5239 if (cea_db_collection_size(cta) < 3)
5240 return 0;
5241
5242 /*
5243 * Sinks that include the HF-EEODB in their E-EDID shall include one and
5244 * only one instance of the HF-EEODB in the E-EDID, occupying bytes 4
5245 * through 6 of Block 1 of the E-EDID.
5246 */
5247 if (!cea_db_is_hdmi_forum_eeodb(&cta[4]))
5248 return 0;
5249
5250 return cta[4 + 2];
5251 }
5252
5253 /*
5254 * CTA-861 YCbCr 4:2:0 Capability Map Data Block (CTA Y420CMDB)
5255 *
5256 * Y420CMDB contains a bitmap which gives the index of CTA modes from CTA VDB,
5257 * which can support YCBCR 420 sampling output also (apart from RGB/YCBCR444
5258 * etc). For example, if the bit 0 in bitmap is set, first mode in VDB can
5259 * support YCBCR420 output too.
5260 */
parse_cta_y420cmdb(struct drm_connector * connector,const struct cea_db * db,u64 * y420cmdb_map)5261 static void parse_cta_y420cmdb(struct drm_connector *connector,
5262 const struct cea_db *db, u64 *y420cmdb_map)
5263 {
5264 struct drm_display_info *info = &connector->display_info;
5265 int i, map_len = cea_db_payload_len(db) - 1;
5266 const u8 *data = cea_db_data(db) + 1;
5267 u64 map = 0;
5268
5269 if (map_len == 0) {
5270 /* All CEA modes support ycbcr420 sampling also.*/
5271 map = U64_MAX;
5272 goto out;
5273 }
5274
5275 /*
5276 * This map indicates which of the existing CEA block modes
5277 * from VDB can support YCBCR420 output too. So if bit=0 is
5278 * set, first mode from VDB can support YCBCR420 output too.
5279 * We will parse and keep this map, before parsing VDB itself
5280 * to avoid going through the same block again and again.
5281 *
5282 * Spec is not clear about max possible size of this block.
5283 * Clamping max bitmap block size at 8 bytes. Every byte can
5284 * address 8 CEA modes, in this way this map can address
5285 * 8*8 = first 64 SVDs.
5286 */
5287 if (WARN_ON_ONCE(map_len > 8))
5288 map_len = 8;
5289
5290 for (i = 0; i < map_len; i++)
5291 map |= (u64)data[i] << (8 * i);
5292
5293 out:
5294 if (map)
5295 info->color_formats |= DRM_COLOR_FORMAT_YCBCR420;
5296
5297 *y420cmdb_map = map;
5298 }
5299
add_cea_modes(struct drm_connector * connector,const struct drm_edid * drm_edid)5300 static int add_cea_modes(struct drm_connector *connector,
5301 const struct drm_edid *drm_edid)
5302 {
5303 const struct cea_db *db;
5304 struct cea_db_iter iter;
5305 int modes;
5306
5307 /* CTA VDB block VICs parsed earlier */
5308 modes = add_cta_vdb_modes(connector);
5309
5310 cea_db_iter_edid_begin(drm_edid, &iter);
5311 cea_db_iter_for_each(db, &iter) {
5312 if (cea_db_is_hdmi_vsdb(db)) {
5313 modes += do_hdmi_vsdb_modes(connector, (const u8 *)db,
5314 cea_db_payload_len(db));
5315 } else if (cea_db_is_y420vdb(db)) {
5316 const u8 *vdb420 = cea_db_data(db) + 1;
5317
5318 /* Add 4:2:0(only) modes present in EDID */
5319 modes += do_y420vdb_modes(connector, vdb420,
5320 cea_db_payload_len(db) - 1);
5321 }
5322 }
5323 cea_db_iter_end(&iter);
5324
5325 return modes;
5326 }
5327
fixup_detailed_cea_mode_clock(struct drm_connector * connector,struct drm_display_mode * mode)5328 static void fixup_detailed_cea_mode_clock(struct drm_connector *connector,
5329 struct drm_display_mode *mode)
5330 {
5331 const struct drm_display_mode *cea_mode;
5332 int clock1, clock2, clock;
5333 u8 vic;
5334 const char *type;
5335
5336 /*
5337 * allow 5kHz clock difference either way to account for
5338 * the 10kHz clock resolution limit of detailed timings.
5339 */
5340 vic = drm_match_cea_mode_clock_tolerance(mode, 5);
5341 if (drm_valid_cea_vic(vic)) {
5342 type = "CEA";
5343 cea_mode = cea_mode_for_vic(vic);
5344 clock1 = cea_mode->clock;
5345 clock2 = cea_mode_alternate_clock(cea_mode);
5346 } else {
5347 vic = drm_match_hdmi_mode_clock_tolerance(mode, 5);
5348 if (drm_valid_hdmi_vic(vic)) {
5349 type = "HDMI";
5350 cea_mode = &edid_4k_modes[vic];
5351 clock1 = cea_mode->clock;
5352 clock2 = hdmi_mode_alternate_clock(cea_mode);
5353 } else {
5354 return;
5355 }
5356 }
5357
5358 /* pick whichever is closest */
5359 if (abs(mode->clock - clock1) < abs(mode->clock - clock2))
5360 clock = clock1;
5361 else
5362 clock = clock2;
5363
5364 if (mode->clock == clock)
5365 return;
5366
5367 drm_dbg_kms(connector->dev,
5368 "[CONNECTOR:%d:%s] detailed mode matches %s VIC %d, adjusting clock %d -> %d\n",
5369 connector->base.id, connector->name,
5370 type, vic, mode->clock, clock);
5371 mode->clock = clock;
5372 }
5373
drm_calculate_luminance_range(struct drm_connector * connector)5374 static void drm_calculate_luminance_range(struct drm_connector *connector)
5375 {
5376 struct hdr_static_metadata *hdr_metadata = &connector->hdr_sink_metadata.hdmi_type1;
5377 struct drm_luminance_range_info *luminance_range =
5378 &connector->display_info.luminance_range;
5379 static const u8 pre_computed_values[] = {
5380 50, 51, 52, 53, 55, 56, 57, 58, 59, 61, 62, 63, 65, 66, 68, 69,
5381 71, 72, 74, 75, 77, 79, 81, 82, 84, 86, 88, 90, 92, 94, 96, 98
5382 };
5383 u32 max_avg, min_cll, max, min, q, r;
5384
5385 if (!(hdr_metadata->metadata_type & BIT(HDMI_STATIC_METADATA_TYPE1)))
5386 return;
5387
5388 max_avg = hdr_metadata->max_fall;
5389 min_cll = hdr_metadata->min_cll;
5390
5391 /*
5392 * From the specification (CTA-861-G), for calculating the maximum
5393 * luminance we need to use:
5394 * Luminance = 50*2**(CV/32)
5395 * Where CV is a one-byte value.
5396 * For calculating this expression we may need float point precision;
5397 * to avoid this complexity level, we take advantage that CV is divided
5398 * by a constant. From the Euclids division algorithm, we know that CV
5399 * can be written as: CV = 32*q + r. Next, we replace CV in the
5400 * Luminance expression and get 50*(2**q)*(2**(r/32)), hence we just
5401 * need to pre-compute the value of r/32. For pre-computing the values
5402 * We just used the following Ruby line:
5403 * (0...32).each {|cv| puts (50*2**(cv/32.0)).round}
5404 * The results of the above expressions can be verified at
5405 * pre_computed_values.
5406 */
5407 q = max_avg >> 5;
5408 r = max_avg % 32;
5409 max = (1 << q) * pre_computed_values[r];
5410
5411 /* min luminance: maxLum * (CV/255)^2 / 100 */
5412 q = DIV_ROUND_CLOSEST(min_cll, 255);
5413 min = max * DIV_ROUND_CLOSEST((q * q), 100);
5414
5415 luminance_range->min_luminance = min;
5416 luminance_range->max_luminance = max;
5417 }
5418
eotf_supported(const u8 * edid_ext)5419 static uint8_t eotf_supported(const u8 *edid_ext)
5420 {
5421 return edid_ext[2] &
5422 (BIT(HDMI_EOTF_TRADITIONAL_GAMMA_SDR) |
5423 BIT(HDMI_EOTF_TRADITIONAL_GAMMA_HDR) |
5424 BIT(HDMI_EOTF_SMPTE_ST2084) |
5425 BIT(HDMI_EOTF_BT_2100_HLG));
5426 }
5427
hdr_metadata_type(const u8 * edid_ext)5428 static uint8_t hdr_metadata_type(const u8 *edid_ext)
5429 {
5430 return edid_ext[3] &
5431 BIT(HDMI_STATIC_METADATA_TYPE1);
5432 }
5433
5434 static void
drm_parse_hdr_metadata_block(struct drm_connector * connector,const u8 * db)5435 drm_parse_hdr_metadata_block(struct drm_connector *connector, const u8 *db)
5436 {
5437 u16 len;
5438
5439 len = cea_db_payload_len(db);
5440
5441 connector->hdr_sink_metadata.hdmi_type1.eotf =
5442 eotf_supported(db);
5443 connector->hdr_sink_metadata.hdmi_type1.metadata_type =
5444 hdr_metadata_type(db);
5445
5446 if (len >= 4)
5447 connector->hdr_sink_metadata.hdmi_type1.max_cll = db[4];
5448 if (len >= 5)
5449 connector->hdr_sink_metadata.hdmi_type1.max_fall = db[5];
5450 if (len >= 6) {
5451 connector->hdr_sink_metadata.hdmi_type1.min_cll = db[6];
5452
5453 /* Calculate only when all values are available */
5454 drm_calculate_luminance_range(connector);
5455 }
5456 }
5457
5458 /* HDMI Vendor-Specific Data Block (HDMI VSDB, H14b-VSDB) */
5459 static void
drm_parse_hdmi_vsdb_audio(struct drm_connector * connector,const u8 * db)5460 drm_parse_hdmi_vsdb_audio(struct drm_connector *connector, const u8 *db)
5461 {
5462 u8 len = cea_db_payload_len(db);
5463
5464 if (len >= 6 && (db[6] & (1 << 7)))
5465 connector->eld[DRM_ELD_SAD_COUNT_CONN_TYPE] |= DRM_ELD_SUPPORTS_AI;
5466
5467 if (len >= 10 && hdmi_vsdb_latency_present(db)) {
5468 connector->latency_present[0] = true;
5469 connector->video_latency[0] = db[9];
5470 connector->audio_latency[0] = db[10];
5471 }
5472
5473 if (len >= 12 && hdmi_vsdb_i_latency_present(db)) {
5474 connector->latency_present[1] = true;
5475 connector->video_latency[1] = db[11];
5476 connector->audio_latency[1] = db[12];
5477 }
5478
5479 drm_dbg_kms(connector->dev,
5480 "[CONNECTOR:%d:%s] HDMI: latency present %d %d, video latency %d %d, audio latency %d %d\n",
5481 connector->base.id, connector->name,
5482 connector->latency_present[0], connector->latency_present[1],
5483 connector->video_latency[0], connector->video_latency[1],
5484 connector->audio_latency[0], connector->audio_latency[1]);
5485 }
5486
5487 static void
match_identity(const struct detailed_timing * timing,void * data)5488 match_identity(const struct detailed_timing *timing, void *data)
5489 {
5490 struct drm_edid_match_closure *closure = data;
5491 unsigned int i;
5492 const char *name = closure->ident->name;
5493 unsigned int name_len = strlen(name);
5494 const char *desc = timing->data.other_data.data.str.str;
5495 unsigned int desc_len = ARRAY_SIZE(timing->data.other_data.data.str.str);
5496
5497 if (name_len > desc_len ||
5498 !(is_display_descriptor(timing, EDID_DETAIL_MONITOR_NAME) ||
5499 is_display_descriptor(timing, EDID_DETAIL_MONITOR_STRING)))
5500 return;
5501
5502 if (strncmp(name, desc, name_len))
5503 return;
5504
5505 for (i = name_len; i < desc_len; i++) {
5506 if (desc[i] == '\n')
5507 break;
5508 /* Allow white space before EDID string terminator. */
5509 if (!isspace(desc[i]))
5510 return;
5511 }
5512
5513 closure->matched = true;
5514 }
5515
5516 /**
5517 * drm_edid_match - match drm_edid with given identity
5518 * @drm_edid: EDID
5519 * @ident: the EDID identity to match with
5520 *
5521 * Check if the EDID matches with the given identity.
5522 *
5523 * Return: True if the given identity matched with EDID, false otherwise.
5524 */
drm_edid_match(const struct drm_edid * drm_edid,const struct drm_edid_ident * ident)5525 bool drm_edid_match(const struct drm_edid *drm_edid,
5526 const struct drm_edid_ident *ident)
5527 {
5528 if (!drm_edid || drm_edid_get_panel_id(drm_edid) != ident->panel_id)
5529 return false;
5530
5531 /* Match with name only if it's not NULL. */
5532 if (ident->name) {
5533 struct drm_edid_match_closure closure = {
5534 .ident = ident,
5535 .matched = false,
5536 };
5537
5538 drm_for_each_detailed_block(drm_edid, match_identity, &closure);
5539
5540 return closure.matched;
5541 }
5542
5543 return true;
5544 }
5545 EXPORT_SYMBOL(drm_edid_match);
5546
5547 static void
monitor_name(const struct detailed_timing * timing,void * data)5548 monitor_name(const struct detailed_timing *timing, void *data)
5549 {
5550 const char **res = data;
5551
5552 if (!is_display_descriptor(timing, EDID_DETAIL_MONITOR_NAME))
5553 return;
5554
5555 *res = timing->data.other_data.data.str.str;
5556 }
5557
get_monitor_name(const struct drm_edid * drm_edid,char name[13])5558 static int get_monitor_name(const struct drm_edid *drm_edid, char name[13])
5559 {
5560 const char *edid_name = NULL;
5561 int mnl;
5562
5563 if (!drm_edid || !name)
5564 return 0;
5565
5566 drm_for_each_detailed_block(drm_edid, monitor_name, &edid_name);
5567 for (mnl = 0; edid_name && mnl < 13; mnl++) {
5568 if (edid_name[mnl] == 0x0a)
5569 break;
5570
5571 name[mnl] = edid_name[mnl];
5572 }
5573
5574 return mnl;
5575 }
5576
5577 /**
5578 * drm_edid_get_monitor_name - fetch the monitor name from the edid
5579 * @edid: monitor EDID information
5580 * @name: pointer to a character array to hold the name of the monitor
5581 * @bufsize: The size of the name buffer (should be at least 14 chars.)
5582 *
5583 */
drm_edid_get_monitor_name(const struct edid * edid,char * name,int bufsize)5584 void drm_edid_get_monitor_name(const struct edid *edid, char *name, int bufsize)
5585 {
5586 int name_length = 0;
5587
5588 if (bufsize <= 0)
5589 return;
5590
5591 if (edid) {
5592 char buf[13];
5593 struct drm_edid drm_edid = {
5594 .edid = edid,
5595 .size = edid_size(edid),
5596 };
5597
5598 name_length = min(get_monitor_name(&drm_edid, buf), bufsize - 1);
5599 memcpy(name, buf, name_length);
5600 }
5601
5602 name[name_length] = '\0';
5603 }
5604 EXPORT_SYMBOL(drm_edid_get_monitor_name);
5605
clear_eld(struct drm_connector * connector)5606 static void clear_eld(struct drm_connector *connector)
5607 {
5608 memset(connector->eld, 0, sizeof(connector->eld));
5609
5610 connector->latency_present[0] = false;
5611 connector->latency_present[1] = false;
5612 connector->video_latency[0] = 0;
5613 connector->audio_latency[0] = 0;
5614 connector->video_latency[1] = 0;
5615 connector->audio_latency[1] = 0;
5616 }
5617
5618 /*
5619 * Get 3-byte SAD buffer from struct cea_sad.
5620 */
drm_edid_cta_sad_get(const struct cea_sad * cta_sad,u8 * sad)5621 void drm_edid_cta_sad_get(const struct cea_sad *cta_sad, u8 *sad)
5622 {
5623 sad[0] = cta_sad->format << 3 | cta_sad->channels;
5624 sad[1] = cta_sad->freq;
5625 sad[2] = cta_sad->byte2;
5626 }
5627
5628 /*
5629 * Set struct cea_sad from 3-byte SAD buffer.
5630 */
drm_edid_cta_sad_set(struct cea_sad * cta_sad,const u8 * sad)5631 void drm_edid_cta_sad_set(struct cea_sad *cta_sad, const u8 *sad)
5632 {
5633 cta_sad->format = (sad[0] & 0x78) >> 3;
5634 cta_sad->channels = sad[0] & 0x07;
5635 cta_sad->freq = sad[1] & 0x7f;
5636 cta_sad->byte2 = sad[2];
5637 }
5638
5639 /*
5640 * drm_edid_to_eld - build ELD from EDID
5641 * @connector: connector corresponding to the HDMI/DP sink
5642 * @drm_edid: EDID to parse
5643 *
5644 * Fill the ELD (EDID-Like Data) buffer for passing to the audio driver. The
5645 * HDCP and Port_ID ELD fields are left for the graphics driver to fill in.
5646 */
drm_edid_to_eld(struct drm_connector * connector,const struct drm_edid * drm_edid)5647 static void drm_edid_to_eld(struct drm_connector *connector,
5648 const struct drm_edid *drm_edid)
5649 {
5650 const struct drm_display_info *info = &connector->display_info;
5651 const struct cea_db *db;
5652 struct cea_db_iter iter;
5653 uint8_t *eld = connector->eld;
5654 int total_sad_count = 0;
5655 int mnl;
5656
5657 if (!drm_edid)
5658 return;
5659
5660 mnl = get_monitor_name(drm_edid, &eld[DRM_ELD_MONITOR_NAME_STRING]);
5661 drm_dbg_kms(connector->dev, "[CONNECTOR:%d:%s] ELD monitor %s\n",
5662 connector->base.id, connector->name,
5663 &eld[DRM_ELD_MONITOR_NAME_STRING]);
5664
5665 eld[DRM_ELD_CEA_EDID_VER_MNL] = info->cea_rev << DRM_ELD_CEA_EDID_VER_SHIFT;
5666 eld[DRM_ELD_CEA_EDID_VER_MNL] |= mnl;
5667
5668 eld[DRM_ELD_VER] = DRM_ELD_VER_CEA861D;
5669
5670 eld[DRM_ELD_MANUFACTURER_NAME0] = drm_edid->edid->mfg_id[0];
5671 eld[DRM_ELD_MANUFACTURER_NAME1] = drm_edid->edid->mfg_id[1];
5672 eld[DRM_ELD_PRODUCT_CODE0] = drm_edid->edid->prod_code[0];
5673 eld[DRM_ELD_PRODUCT_CODE1] = drm_edid->edid->prod_code[1];
5674
5675 cea_db_iter_edid_begin(drm_edid, &iter);
5676 cea_db_iter_for_each(db, &iter) {
5677 const u8 *data = cea_db_data(db);
5678 int len = cea_db_payload_len(db);
5679 int sad_count;
5680
5681 switch (cea_db_tag(db)) {
5682 case CTA_DB_AUDIO:
5683 /* Audio Data Block, contains SADs */
5684 sad_count = min(len / 3, 15 - total_sad_count);
5685 if (sad_count >= 1)
5686 memcpy(&eld[DRM_ELD_CEA_SAD(mnl, total_sad_count)],
5687 data, sad_count * 3);
5688 total_sad_count += sad_count;
5689 break;
5690 case CTA_DB_SPEAKER:
5691 /* Speaker Allocation Data Block */
5692 if (len >= 1)
5693 eld[DRM_ELD_SPEAKER] = data[0];
5694 break;
5695 case CTA_DB_VENDOR:
5696 /* HDMI Vendor-Specific Data Block */
5697 if (cea_db_is_hdmi_vsdb(db))
5698 drm_parse_hdmi_vsdb_audio(connector, (const u8 *)db);
5699 break;
5700 default:
5701 break;
5702 }
5703 }
5704 cea_db_iter_end(&iter);
5705
5706 eld[DRM_ELD_SAD_COUNT_CONN_TYPE] |= total_sad_count << DRM_ELD_SAD_COUNT_SHIFT;
5707
5708 if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
5709 connector->connector_type == DRM_MODE_CONNECTOR_eDP)
5710 eld[DRM_ELD_SAD_COUNT_CONN_TYPE] |= DRM_ELD_CONN_TYPE_DP;
5711 else
5712 eld[DRM_ELD_SAD_COUNT_CONN_TYPE] |= DRM_ELD_CONN_TYPE_HDMI;
5713
5714 eld[DRM_ELD_BASELINE_ELD_LEN] =
5715 DIV_ROUND_UP(drm_eld_calc_baseline_block_size(eld), 4);
5716
5717 drm_dbg_kms(connector->dev, "[CONNECTOR:%d:%s] ELD size %d, SAD count %d\n",
5718 connector->base.id, connector->name,
5719 drm_eld_size(eld), total_sad_count);
5720 }
5721
_drm_edid_to_sad(const struct drm_edid * drm_edid,struct cea_sad ** psads)5722 static int _drm_edid_to_sad(const struct drm_edid *drm_edid,
5723 struct cea_sad **psads)
5724 {
5725 const struct cea_db *db;
5726 struct cea_db_iter iter;
5727 int count = 0;
5728
5729 cea_db_iter_edid_begin(drm_edid, &iter);
5730 cea_db_iter_for_each(db, &iter) {
5731 if (cea_db_tag(db) == CTA_DB_AUDIO) {
5732 struct cea_sad *sads;
5733 int i;
5734
5735 count = cea_db_payload_len(db) / 3; /* SAD is 3B */
5736 sads = kcalloc(count, sizeof(*sads), GFP_KERNEL);
5737 *psads = sads;
5738 if (!sads)
5739 return -ENOMEM;
5740 for (i = 0; i < count; i++)
5741 drm_edid_cta_sad_set(&sads[i], &db->data[i * 3]);
5742 break;
5743 }
5744 }
5745 cea_db_iter_end(&iter);
5746
5747 DRM_DEBUG_KMS("Found %d Short Audio Descriptors\n", count);
5748
5749 return count;
5750 }
5751
5752 /**
5753 * drm_edid_to_sad - extracts SADs from EDID
5754 * @edid: EDID to parse
5755 * @sads: pointer that will be set to the extracted SADs
5756 *
5757 * Looks for CEA EDID block and extracts SADs (Short Audio Descriptors) from it.
5758 *
5759 * Note: The returned pointer needs to be freed using kfree().
5760 *
5761 * Return: The number of found SADs or negative number on error.
5762 */
drm_edid_to_sad(const struct edid * edid,struct cea_sad ** sads)5763 int drm_edid_to_sad(const struct edid *edid, struct cea_sad **sads)
5764 {
5765 struct drm_edid drm_edid;
5766
5767 return _drm_edid_to_sad(drm_edid_legacy_init(&drm_edid, edid), sads);
5768 }
5769 EXPORT_SYMBOL(drm_edid_to_sad);
5770
_drm_edid_to_speaker_allocation(const struct drm_edid * drm_edid,u8 ** sadb)5771 static int _drm_edid_to_speaker_allocation(const struct drm_edid *drm_edid,
5772 u8 **sadb)
5773 {
5774 const struct cea_db *db;
5775 struct cea_db_iter iter;
5776 int count = 0;
5777
5778 cea_db_iter_edid_begin(drm_edid, &iter);
5779 cea_db_iter_for_each(db, &iter) {
5780 if (cea_db_tag(db) == CTA_DB_SPEAKER &&
5781 cea_db_payload_len(db) == 3) {
5782 *sadb = kmemdup(db->data, cea_db_payload_len(db),
5783 GFP_KERNEL);
5784 if (!*sadb)
5785 return -ENOMEM;
5786 count = cea_db_payload_len(db);
5787 break;
5788 }
5789 }
5790 cea_db_iter_end(&iter);
5791
5792 DRM_DEBUG_KMS("Found %d Speaker Allocation Data Blocks\n", count);
5793
5794 return count;
5795 }
5796
5797 /**
5798 * drm_edid_to_speaker_allocation - extracts Speaker Allocation Data Blocks from EDID
5799 * @edid: EDID to parse
5800 * @sadb: pointer to the speaker block
5801 *
5802 * Looks for CEA EDID block and extracts the Speaker Allocation Data Block from it.
5803 *
5804 * Note: The returned pointer needs to be freed using kfree().
5805 *
5806 * Return: The number of found Speaker Allocation Blocks or negative number on
5807 * error.
5808 */
drm_edid_to_speaker_allocation(const struct edid * edid,u8 ** sadb)5809 int drm_edid_to_speaker_allocation(const struct edid *edid, u8 **sadb)
5810 {
5811 struct drm_edid drm_edid;
5812
5813 return _drm_edid_to_speaker_allocation(drm_edid_legacy_init(&drm_edid, edid),
5814 sadb);
5815 }
5816 EXPORT_SYMBOL(drm_edid_to_speaker_allocation);
5817
5818 /**
5819 * drm_av_sync_delay - compute the HDMI/DP sink audio-video sync delay
5820 * @connector: connector associated with the HDMI/DP sink
5821 * @mode: the display mode
5822 *
5823 * Return: The HDMI/DP sink's audio-video sync delay in milliseconds or 0 if
5824 * the sink doesn't support audio or video.
5825 */
drm_av_sync_delay(struct drm_connector * connector,const struct drm_display_mode * mode)5826 int drm_av_sync_delay(struct drm_connector *connector,
5827 const struct drm_display_mode *mode)
5828 {
5829 int i = !!(mode->flags & DRM_MODE_FLAG_INTERLACE);
5830 int a, v;
5831
5832 if (!connector->latency_present[0])
5833 return 0;
5834 if (!connector->latency_present[1])
5835 i = 0;
5836
5837 a = connector->audio_latency[i];
5838 v = connector->video_latency[i];
5839
5840 /*
5841 * HDMI/DP sink doesn't support audio or video?
5842 */
5843 if (a == 255 || v == 255)
5844 return 0;
5845
5846 /*
5847 * Convert raw EDID values to millisecond.
5848 * Treat unknown latency as 0ms.
5849 */
5850 if (a)
5851 a = min(2 * (a - 1), 500);
5852 if (v)
5853 v = min(2 * (v - 1), 500);
5854
5855 return max(v - a, 0);
5856 }
5857 EXPORT_SYMBOL(drm_av_sync_delay);
5858
_drm_detect_hdmi_monitor(const struct drm_edid * drm_edid)5859 static bool _drm_detect_hdmi_monitor(const struct drm_edid *drm_edid)
5860 {
5861 const struct cea_db *db;
5862 struct cea_db_iter iter;
5863 bool hdmi = false;
5864
5865 /*
5866 * Because HDMI identifier is in Vendor Specific Block,
5867 * search it from all data blocks of CEA extension.
5868 */
5869 cea_db_iter_edid_begin(drm_edid, &iter);
5870 cea_db_iter_for_each(db, &iter) {
5871 if (cea_db_is_hdmi_vsdb(db)) {
5872 hdmi = true;
5873 break;
5874 }
5875 }
5876 cea_db_iter_end(&iter);
5877
5878 return hdmi;
5879 }
5880
5881 /**
5882 * drm_detect_hdmi_monitor - detect whether monitor is HDMI
5883 * @edid: monitor EDID information
5884 *
5885 * Parse the CEA extension according to CEA-861-B.
5886 *
5887 * Drivers that have added the modes parsed from EDID to drm_display_info
5888 * should use &drm_display_info.is_hdmi instead of calling this function.
5889 *
5890 * Return: True if the monitor is HDMI, false if not or unknown.
5891 */
drm_detect_hdmi_monitor(const struct edid * edid)5892 bool drm_detect_hdmi_monitor(const struct edid *edid)
5893 {
5894 struct drm_edid drm_edid;
5895
5896 return _drm_detect_hdmi_monitor(drm_edid_legacy_init(&drm_edid, edid));
5897 }
5898 EXPORT_SYMBOL(drm_detect_hdmi_monitor);
5899
_drm_detect_monitor_audio(const struct drm_edid * drm_edid)5900 static bool _drm_detect_monitor_audio(const struct drm_edid *drm_edid)
5901 {
5902 struct drm_edid_iter edid_iter;
5903 const struct cea_db *db;
5904 struct cea_db_iter iter;
5905 const u8 *edid_ext;
5906 bool has_audio = false;
5907
5908 drm_edid_iter_begin(drm_edid, &edid_iter);
5909 drm_edid_iter_for_each(edid_ext, &edid_iter) {
5910 if (edid_ext[0] == CEA_EXT) {
5911 has_audio = edid_ext[3] & EDID_BASIC_AUDIO;
5912 if (has_audio)
5913 break;
5914 }
5915 }
5916 drm_edid_iter_end(&edid_iter);
5917
5918 if (has_audio) {
5919 DRM_DEBUG_KMS("Monitor has basic audio support\n");
5920 goto end;
5921 }
5922
5923 cea_db_iter_edid_begin(drm_edid, &iter);
5924 cea_db_iter_for_each(db, &iter) {
5925 if (cea_db_tag(db) == CTA_DB_AUDIO) {
5926 const u8 *data = cea_db_data(db);
5927 int i;
5928
5929 for (i = 0; i < cea_db_payload_len(db); i += 3)
5930 DRM_DEBUG_KMS("CEA audio format %d\n",
5931 (data[i] >> 3) & 0xf);
5932 has_audio = true;
5933 break;
5934 }
5935 }
5936 cea_db_iter_end(&iter);
5937
5938 end:
5939 return has_audio;
5940 }
5941
5942 /**
5943 * drm_detect_monitor_audio - check monitor audio capability
5944 * @edid: EDID block to scan
5945 *
5946 * Monitor should have CEA extension block.
5947 * If monitor has 'basic audio', but no CEA audio blocks, it's 'basic
5948 * audio' only. If there is any audio extension block and supported
5949 * audio format, assume at least 'basic audio' support, even if 'basic
5950 * audio' is not defined in EDID.
5951 *
5952 * Return: True if the monitor supports audio, false otherwise.
5953 */
drm_detect_monitor_audio(const struct edid * edid)5954 bool drm_detect_monitor_audio(const struct edid *edid)
5955 {
5956 struct drm_edid drm_edid;
5957
5958 return _drm_detect_monitor_audio(drm_edid_legacy_init(&drm_edid, edid));
5959 }
5960 EXPORT_SYMBOL(drm_detect_monitor_audio);
5961
5962
5963 /**
5964 * drm_default_rgb_quant_range - default RGB quantization range
5965 * @mode: display mode
5966 *
5967 * Determine the default RGB quantization range for the mode,
5968 * as specified in CEA-861.
5969 *
5970 * Return: The default RGB quantization range for the mode
5971 */
5972 enum hdmi_quantization_range
drm_default_rgb_quant_range(const struct drm_display_mode * mode)5973 drm_default_rgb_quant_range(const struct drm_display_mode *mode)
5974 {
5975 /* All CEA modes other than VIC 1 use limited quantization range. */
5976 return drm_match_cea_mode(mode) > 1 ?
5977 HDMI_QUANTIZATION_RANGE_LIMITED :
5978 HDMI_QUANTIZATION_RANGE_FULL;
5979 }
5980 EXPORT_SYMBOL(drm_default_rgb_quant_range);
5981
5982 /* CTA-861 Video Data Block (CTA VDB) */
parse_cta_vdb(struct drm_connector * connector,const struct cea_db * db)5983 static void parse_cta_vdb(struct drm_connector *connector, const struct cea_db *db)
5984 {
5985 struct drm_display_info *info = &connector->display_info;
5986 int i, vic_index, len = cea_db_payload_len(db);
5987 const u8 *svds = cea_db_data(db);
5988 u8 *vics;
5989
5990 if (!len)
5991 return;
5992
5993 /* Gracefully handle multiple VDBs, however unlikely that is */
5994 vics = krealloc(info->vics, info->vics_len + len, GFP_KERNEL);
5995 if (!vics)
5996 return;
5997
5998 vic_index = info->vics_len;
5999 info->vics_len += len;
6000 info->vics = vics;
6001
6002 for (i = 0; i < len; i++) {
6003 u8 vic = svd_to_vic(svds[i]);
6004
6005 if (!drm_valid_cea_vic(vic))
6006 vic = 0;
6007
6008 info->vics[vic_index++] = vic;
6009 }
6010 }
6011
6012 /*
6013 * Update y420_cmdb_modes based on previously parsed CTA VDB and Y420CMDB.
6014 *
6015 * Translate the y420cmdb_map based on VIC indexes to y420_cmdb_modes indexed
6016 * using the VICs themselves.
6017 */
update_cta_y420cmdb(struct drm_connector * connector,u64 y420cmdb_map)6018 static void update_cta_y420cmdb(struct drm_connector *connector, u64 y420cmdb_map)
6019 {
6020 struct drm_display_info *info = &connector->display_info;
6021 struct drm_hdmi_info *hdmi = &info->hdmi;
6022 int i, len = min_t(int, info->vics_len, BITS_PER_TYPE(y420cmdb_map));
6023
6024 for (i = 0; i < len; i++) {
6025 u8 vic = info->vics[i];
6026
6027 if (vic && y420cmdb_map & BIT_ULL(i))
6028 bitmap_set(hdmi->y420_cmdb_modes, vic, 1);
6029 }
6030 }
6031
cta_vdb_has_vic(const struct drm_connector * connector,u8 vic)6032 static bool cta_vdb_has_vic(const struct drm_connector *connector, u8 vic)
6033 {
6034 const struct drm_display_info *info = &connector->display_info;
6035 int i;
6036
6037 if (!vic || !info->vics)
6038 return false;
6039
6040 for (i = 0; i < info->vics_len; i++) {
6041 if (info->vics[i] == vic)
6042 return true;
6043 }
6044
6045 return false;
6046 }
6047
6048 /* CTA-861-H YCbCr 4:2:0 Video Data Block (CTA Y420VDB) */
parse_cta_y420vdb(struct drm_connector * connector,const struct cea_db * db)6049 static void parse_cta_y420vdb(struct drm_connector *connector,
6050 const struct cea_db *db)
6051 {
6052 struct drm_display_info *info = &connector->display_info;
6053 struct drm_hdmi_info *hdmi = &info->hdmi;
6054 const u8 *svds = cea_db_data(db) + 1;
6055 int i;
6056
6057 for (i = 0; i < cea_db_payload_len(db) - 1; i++) {
6058 u8 vic = svd_to_vic(svds[i]);
6059
6060 if (!drm_valid_cea_vic(vic))
6061 continue;
6062
6063 bitmap_set(hdmi->y420_vdb_modes, vic, 1);
6064 info->color_formats |= DRM_COLOR_FORMAT_YCBCR420;
6065 }
6066 }
6067
drm_parse_vcdb(struct drm_connector * connector,const u8 * db)6068 static void drm_parse_vcdb(struct drm_connector *connector, const u8 *db)
6069 {
6070 struct drm_display_info *info = &connector->display_info;
6071
6072 drm_dbg_kms(connector->dev, "[CONNECTOR:%d:%s] CEA VCDB 0x%02x\n",
6073 connector->base.id, connector->name, db[2]);
6074
6075 if (db[2] & EDID_CEA_VCDB_QS)
6076 info->rgb_quant_range_selectable = true;
6077 }
6078
6079 static
drm_get_max_frl_rate(int max_frl_rate,u8 * max_lanes,u8 * max_rate_per_lane)6080 void drm_get_max_frl_rate(int max_frl_rate, u8 *max_lanes, u8 *max_rate_per_lane)
6081 {
6082 switch (max_frl_rate) {
6083 case 1:
6084 *max_lanes = 3;
6085 *max_rate_per_lane = 3;
6086 break;
6087 case 2:
6088 *max_lanes = 3;
6089 *max_rate_per_lane = 6;
6090 break;
6091 case 3:
6092 *max_lanes = 4;
6093 *max_rate_per_lane = 6;
6094 break;
6095 case 4:
6096 *max_lanes = 4;
6097 *max_rate_per_lane = 8;
6098 break;
6099 case 5:
6100 *max_lanes = 4;
6101 *max_rate_per_lane = 10;
6102 break;
6103 case 6:
6104 *max_lanes = 4;
6105 *max_rate_per_lane = 12;
6106 break;
6107 case 0:
6108 default:
6109 *max_lanes = 0;
6110 *max_rate_per_lane = 0;
6111 }
6112 }
6113
drm_parse_ycbcr420_deep_color_info(struct drm_connector * connector,const u8 * db)6114 static void drm_parse_ycbcr420_deep_color_info(struct drm_connector *connector,
6115 const u8 *db)
6116 {
6117 u8 dc_mask;
6118 struct drm_hdmi_info *hdmi = &connector->display_info.hdmi;
6119
6120 dc_mask = db[7] & DRM_EDID_YCBCR420_DC_MASK;
6121 hdmi->y420_dc_modes = dc_mask;
6122 }
6123
drm_parse_dsc_info(struct drm_hdmi_dsc_cap * hdmi_dsc,const u8 * hf_scds)6124 static void drm_parse_dsc_info(struct drm_hdmi_dsc_cap *hdmi_dsc,
6125 const u8 *hf_scds)
6126 {
6127 hdmi_dsc->v_1p2 = hf_scds[11] & DRM_EDID_DSC_1P2;
6128
6129 if (!hdmi_dsc->v_1p2)
6130 return;
6131
6132 hdmi_dsc->native_420 = hf_scds[11] & DRM_EDID_DSC_NATIVE_420;
6133 hdmi_dsc->all_bpp = hf_scds[11] & DRM_EDID_DSC_ALL_BPP;
6134
6135 if (hf_scds[11] & DRM_EDID_DSC_16BPC)
6136 hdmi_dsc->bpc_supported = 16;
6137 else if (hf_scds[11] & DRM_EDID_DSC_12BPC)
6138 hdmi_dsc->bpc_supported = 12;
6139 else if (hf_scds[11] & DRM_EDID_DSC_10BPC)
6140 hdmi_dsc->bpc_supported = 10;
6141 else
6142 /* Supports min 8 BPC if DSC 1.2 is supported*/
6143 hdmi_dsc->bpc_supported = 8;
6144
6145 if (cea_db_payload_len(hf_scds) >= 12 && hf_scds[12]) {
6146 u8 dsc_max_slices;
6147 u8 dsc_max_frl_rate;
6148
6149 dsc_max_frl_rate = (hf_scds[12] & DRM_EDID_DSC_MAX_FRL_RATE_MASK) >> 4;
6150 drm_get_max_frl_rate(dsc_max_frl_rate, &hdmi_dsc->max_lanes,
6151 &hdmi_dsc->max_frl_rate_per_lane);
6152
6153 dsc_max_slices = hf_scds[12] & DRM_EDID_DSC_MAX_SLICES;
6154
6155 switch (dsc_max_slices) {
6156 case 1:
6157 hdmi_dsc->max_slices = 1;
6158 hdmi_dsc->clk_per_slice = 340;
6159 break;
6160 case 2:
6161 hdmi_dsc->max_slices = 2;
6162 hdmi_dsc->clk_per_slice = 340;
6163 break;
6164 case 3:
6165 hdmi_dsc->max_slices = 4;
6166 hdmi_dsc->clk_per_slice = 340;
6167 break;
6168 case 4:
6169 hdmi_dsc->max_slices = 8;
6170 hdmi_dsc->clk_per_slice = 340;
6171 break;
6172 case 5:
6173 hdmi_dsc->max_slices = 8;
6174 hdmi_dsc->clk_per_slice = 400;
6175 break;
6176 case 6:
6177 hdmi_dsc->max_slices = 12;
6178 hdmi_dsc->clk_per_slice = 400;
6179 break;
6180 case 7:
6181 hdmi_dsc->max_slices = 16;
6182 hdmi_dsc->clk_per_slice = 400;
6183 break;
6184 case 0:
6185 default:
6186 hdmi_dsc->max_slices = 0;
6187 hdmi_dsc->clk_per_slice = 0;
6188 }
6189 }
6190
6191 if (cea_db_payload_len(hf_scds) >= 13 && hf_scds[13])
6192 hdmi_dsc->total_chunk_kbytes = hf_scds[13] & DRM_EDID_DSC_TOTAL_CHUNK_KBYTES;
6193 }
6194
6195 /* Sink Capability Data Structure */
drm_parse_hdmi_forum_scds(struct drm_connector * connector,const u8 * hf_scds)6196 static void drm_parse_hdmi_forum_scds(struct drm_connector *connector,
6197 const u8 *hf_scds)
6198 {
6199 struct drm_display_info *info = &connector->display_info;
6200 struct drm_hdmi_info *hdmi = &info->hdmi;
6201 struct drm_hdmi_dsc_cap *hdmi_dsc = &hdmi->dsc_cap;
6202 int max_tmds_clock = 0;
6203 u8 max_frl_rate = 0;
6204 bool dsc_support = false;
6205
6206 info->has_hdmi_infoframe = true;
6207
6208 if (hf_scds[6] & 0x80) {
6209 hdmi->scdc.supported = true;
6210 if (hf_scds[6] & 0x40)
6211 hdmi->scdc.read_request = true;
6212 }
6213
6214 /*
6215 * All HDMI 2.0 monitors must support scrambling at rates > 340 MHz.
6216 * And as per the spec, three factors confirm this:
6217 * * Availability of a HF-VSDB block in EDID (check)
6218 * * Non zero Max_TMDS_Char_Rate filed in HF-VSDB (let's check)
6219 * * SCDC support available (let's check)
6220 * Lets check it out.
6221 */
6222
6223 if (hf_scds[5]) {
6224 struct drm_scdc *scdc = &hdmi->scdc;
6225
6226 /* max clock is 5000 KHz times block value */
6227 max_tmds_clock = hf_scds[5] * 5000;
6228
6229 if (max_tmds_clock > 340000) {
6230 info->max_tmds_clock = max_tmds_clock;
6231 }
6232
6233 if (scdc->supported) {
6234 scdc->scrambling.supported = true;
6235
6236 /* Few sinks support scrambling for clocks < 340M */
6237 if ((hf_scds[6] & 0x8))
6238 scdc->scrambling.low_rates = true;
6239 }
6240 }
6241
6242 if (hf_scds[7]) {
6243 max_frl_rate = (hf_scds[7] & DRM_EDID_MAX_FRL_RATE_MASK) >> 4;
6244 drm_get_max_frl_rate(max_frl_rate, &hdmi->max_lanes,
6245 &hdmi->max_frl_rate_per_lane);
6246 }
6247
6248 drm_parse_ycbcr420_deep_color_info(connector, hf_scds);
6249
6250 if (cea_db_payload_len(hf_scds) >= 11 && hf_scds[11]) {
6251 drm_parse_dsc_info(hdmi_dsc, hf_scds);
6252 dsc_support = true;
6253 }
6254
6255 drm_dbg_kms(connector->dev,
6256 "[CONNECTOR:%d:%s] HF-VSDB: max TMDS clock: %d KHz, HDMI 2.1 support: %s, DSC 1.2 support: %s\n",
6257 connector->base.id, connector->name,
6258 max_tmds_clock, str_yes_no(max_frl_rate), str_yes_no(dsc_support));
6259 }
6260
drm_parse_hdmi_deep_color_info(struct drm_connector * connector,const u8 * hdmi)6261 static void drm_parse_hdmi_deep_color_info(struct drm_connector *connector,
6262 const u8 *hdmi)
6263 {
6264 struct drm_display_info *info = &connector->display_info;
6265 unsigned int dc_bpc = 0;
6266
6267 /* HDMI supports at least 8 bpc */
6268 info->bpc = 8;
6269
6270 if (cea_db_payload_len(hdmi) < 6)
6271 return;
6272
6273 if (hdmi[6] & DRM_EDID_HDMI_DC_30) {
6274 dc_bpc = 10;
6275 info->edid_hdmi_rgb444_dc_modes |= DRM_EDID_HDMI_DC_30;
6276 drm_dbg_kms(connector->dev, "[CONNECTOR:%d:%s] HDMI sink does deep color 30.\n",
6277 connector->base.id, connector->name);
6278 }
6279
6280 if (hdmi[6] & DRM_EDID_HDMI_DC_36) {
6281 dc_bpc = 12;
6282 info->edid_hdmi_rgb444_dc_modes |= DRM_EDID_HDMI_DC_36;
6283 drm_dbg_kms(connector->dev, "[CONNECTOR:%d:%s] HDMI sink does deep color 36.\n",
6284 connector->base.id, connector->name);
6285 }
6286
6287 if (hdmi[6] & DRM_EDID_HDMI_DC_48) {
6288 dc_bpc = 16;
6289 info->edid_hdmi_rgb444_dc_modes |= DRM_EDID_HDMI_DC_48;
6290 drm_dbg_kms(connector->dev, "[CONNECTOR:%d:%s] HDMI sink does deep color 48.\n",
6291 connector->base.id, connector->name);
6292 }
6293
6294 if (dc_bpc == 0) {
6295 drm_dbg_kms(connector->dev, "[CONNECTOR:%d:%s] No deep color support on this HDMI sink.\n",
6296 connector->base.id, connector->name);
6297 return;
6298 }
6299
6300 drm_dbg_kms(connector->dev, "[CONNECTOR:%d:%s] Assigning HDMI sink color depth as %d bpc.\n",
6301 connector->base.id, connector->name, dc_bpc);
6302 info->bpc = dc_bpc;
6303
6304 /* YCRCB444 is optional according to spec. */
6305 if (hdmi[6] & DRM_EDID_HDMI_DC_Y444) {
6306 info->edid_hdmi_ycbcr444_dc_modes = info->edid_hdmi_rgb444_dc_modes;
6307 drm_dbg_kms(connector->dev, "[CONNECTOR:%d:%s] HDMI sink does YCRCB444 in deep color.\n",
6308 connector->base.id, connector->name);
6309 }
6310
6311 /*
6312 * Spec says that if any deep color mode is supported at all,
6313 * then deep color 36 bit must be supported.
6314 */
6315 if (!(hdmi[6] & DRM_EDID_HDMI_DC_36)) {
6316 drm_dbg_kms(connector->dev, "[CONNECTOR:%d:%s] HDMI sink should do DC_36, but does not!\n",
6317 connector->base.id, connector->name);
6318 }
6319 }
6320
6321 /* HDMI Vendor-Specific Data Block (HDMI VSDB, H14b-VSDB) */
6322 static void
drm_parse_hdmi_vsdb_video(struct drm_connector * connector,const u8 * db)6323 drm_parse_hdmi_vsdb_video(struct drm_connector *connector, const u8 *db)
6324 {
6325 struct drm_display_info *info = &connector->display_info;
6326 u8 len = cea_db_payload_len(db);
6327
6328 info->is_hdmi = true;
6329
6330 info->source_physical_address = (db[4] << 8) | db[5];
6331
6332 if (len >= 6)
6333 info->dvi_dual = db[6] & 1;
6334 if (len >= 7)
6335 info->max_tmds_clock = db[7] * 5000;
6336
6337 /*
6338 * Try to infer whether the sink supports HDMI infoframes.
6339 *
6340 * HDMI infoframe support was first added in HDMI 1.4. Assume the sink
6341 * supports infoframes if HDMI_Video_present is set.
6342 */
6343 if (len >= 8 && db[8] & BIT(5))
6344 info->has_hdmi_infoframe = true;
6345
6346 drm_dbg_kms(connector->dev, "[CONNECTOR:%d:%s] HDMI: DVI dual %d, max TMDS clock %d kHz\n",
6347 connector->base.id, connector->name,
6348 info->dvi_dual, info->max_tmds_clock);
6349
6350 drm_parse_hdmi_deep_color_info(connector, db);
6351 }
6352
6353 /*
6354 * See EDID extension for head-mounted and specialized monitors, specified at:
6355 * https://docs.microsoft.com/en-us/windows-hardware/drivers/display/specialized-monitors-edid-extension
6356 */
drm_parse_microsoft_vsdb(struct drm_connector * connector,const u8 * db)6357 static void drm_parse_microsoft_vsdb(struct drm_connector *connector,
6358 const u8 *db)
6359 {
6360 struct drm_display_info *info = &connector->display_info;
6361 u8 version = db[4];
6362 bool desktop_usage = db[5] & BIT(6);
6363
6364 /* Version 1 and 2 for HMDs, version 3 flags desktop usage explicitly */
6365 if (version == 1 || version == 2 || (version == 3 && !desktop_usage))
6366 info->non_desktop = true;
6367
6368 drm_dbg_kms(connector->dev,
6369 "[CONNECTOR:%d:%s] HMD or specialized display VSDB version %u: 0x%02x\n",
6370 connector->base.id, connector->name, version, db[5]);
6371 }
6372
drm_parse_cea_ext(struct drm_connector * connector,const struct drm_edid * drm_edid)6373 static void drm_parse_cea_ext(struct drm_connector *connector,
6374 const struct drm_edid *drm_edid)
6375 {
6376 struct drm_display_info *info = &connector->display_info;
6377 struct drm_edid_iter edid_iter;
6378 const struct cea_db *db;
6379 struct cea_db_iter iter;
6380 const u8 *edid_ext;
6381 u64 y420cmdb_map = 0;
6382
6383 drm_edid_iter_begin(drm_edid, &edid_iter);
6384 drm_edid_iter_for_each(edid_ext, &edid_iter) {
6385 if (edid_ext[0] != CEA_EXT)
6386 continue;
6387
6388 if (!info->cea_rev)
6389 info->cea_rev = edid_ext[1];
6390
6391 if (info->cea_rev != edid_ext[1])
6392 drm_dbg_kms(connector->dev,
6393 "[CONNECTOR:%d:%s] CEA extension version mismatch %u != %u\n",
6394 connector->base.id, connector->name,
6395 info->cea_rev, edid_ext[1]);
6396
6397 /* The existence of a CTA extension should imply RGB support */
6398 info->color_formats = DRM_COLOR_FORMAT_RGB444;
6399 if (edid_ext[3] & EDID_CEA_YCRCB444)
6400 info->color_formats |= DRM_COLOR_FORMAT_YCBCR444;
6401 if (edid_ext[3] & EDID_CEA_YCRCB422)
6402 info->color_formats |= DRM_COLOR_FORMAT_YCBCR422;
6403 if (edid_ext[3] & EDID_BASIC_AUDIO)
6404 info->has_audio = true;
6405
6406 }
6407 drm_edid_iter_end(&edid_iter);
6408
6409 cea_db_iter_edid_begin(drm_edid, &iter);
6410 cea_db_iter_for_each(db, &iter) {
6411 /* FIXME: convert parsers to use struct cea_db */
6412 const u8 *data = (const u8 *)db;
6413
6414 if (cea_db_is_hdmi_vsdb(db))
6415 drm_parse_hdmi_vsdb_video(connector, data);
6416 else if (cea_db_is_hdmi_forum_vsdb(db) ||
6417 cea_db_is_hdmi_forum_scdb(db))
6418 drm_parse_hdmi_forum_scds(connector, data);
6419 else if (cea_db_is_microsoft_vsdb(db))
6420 drm_parse_microsoft_vsdb(connector, data);
6421 else if (cea_db_is_y420cmdb(db))
6422 parse_cta_y420cmdb(connector, db, &y420cmdb_map);
6423 else if (cea_db_is_y420vdb(db))
6424 parse_cta_y420vdb(connector, db);
6425 else if (cea_db_is_vcdb(db))
6426 drm_parse_vcdb(connector, data);
6427 else if (cea_db_is_hdmi_hdr_metadata_block(db))
6428 drm_parse_hdr_metadata_block(connector, data);
6429 else if (cea_db_tag(db) == CTA_DB_VIDEO)
6430 parse_cta_vdb(connector, db);
6431 else if (cea_db_tag(db) == CTA_DB_AUDIO)
6432 info->has_audio = true;
6433 }
6434 cea_db_iter_end(&iter);
6435
6436 if (y420cmdb_map)
6437 update_cta_y420cmdb(connector, y420cmdb_map);
6438 }
6439
6440 static
get_monitor_range(const struct detailed_timing * timing,void * c)6441 void get_monitor_range(const struct detailed_timing *timing, void *c)
6442 {
6443 struct detailed_mode_closure *closure = c;
6444 struct drm_display_info *info = &closure->connector->display_info;
6445 struct drm_monitor_range_info *monitor_range = &info->monitor_range;
6446 const struct detailed_non_pixel *data = &timing->data.other_data;
6447 const struct detailed_data_monitor_range *range = &data->data.range;
6448 const struct edid *edid = closure->drm_edid->edid;
6449
6450 if (!is_display_descriptor(timing, EDID_DETAIL_MONITOR_RANGE))
6451 return;
6452
6453 /*
6454 * These limits are used to determine the VRR refresh
6455 * rate range. Only the "range limits only" variant
6456 * of the range descriptor seems to guarantee that
6457 * any and all timings are accepted by the sink, as
6458 * opposed to just timings conforming to the indicated
6459 * formula (GTF/GTF2/CVT). Thus other variants of the
6460 * range descriptor are not accepted here.
6461 */
6462 if (range->flags != DRM_EDID_RANGE_LIMITS_ONLY_FLAG)
6463 return;
6464
6465 monitor_range->min_vfreq = range->min_vfreq;
6466 monitor_range->max_vfreq = range->max_vfreq;
6467
6468 if (edid->revision >= 4) {
6469 if (data->pad2 & DRM_EDID_RANGE_OFFSET_MIN_VFREQ)
6470 monitor_range->min_vfreq += 255;
6471 if (data->pad2 & DRM_EDID_RANGE_OFFSET_MAX_VFREQ)
6472 monitor_range->max_vfreq += 255;
6473 }
6474 }
6475
drm_get_monitor_range(struct drm_connector * connector,const struct drm_edid * drm_edid)6476 static void drm_get_monitor_range(struct drm_connector *connector,
6477 const struct drm_edid *drm_edid)
6478 {
6479 const struct drm_display_info *info = &connector->display_info;
6480 struct detailed_mode_closure closure = {
6481 .connector = connector,
6482 .drm_edid = drm_edid,
6483 };
6484
6485 if (drm_edid->edid->revision < 4)
6486 return;
6487
6488 if (!(drm_edid->edid->features & DRM_EDID_FEATURE_CONTINUOUS_FREQ))
6489 return;
6490
6491 drm_for_each_detailed_block(drm_edid, get_monitor_range, &closure);
6492
6493 drm_dbg_kms(connector->dev,
6494 "[CONNECTOR:%d:%s] Supported Monitor Refresh rate range is %d Hz - %d Hz\n",
6495 connector->base.id, connector->name,
6496 info->monitor_range.min_vfreq, info->monitor_range.max_vfreq);
6497 }
6498
drm_parse_vesa_mso_data(struct drm_connector * connector,const struct displayid_block * block)6499 static void drm_parse_vesa_mso_data(struct drm_connector *connector,
6500 const struct displayid_block *block)
6501 {
6502 struct displayid_vesa_vendor_specific_block *vesa =
6503 (struct displayid_vesa_vendor_specific_block *)block;
6504 struct drm_display_info *info = &connector->display_info;
6505
6506 if (block->num_bytes < 3) {
6507 drm_dbg_kms(connector->dev,
6508 "[CONNECTOR:%d:%s] Unexpected vendor block size %u\n",
6509 connector->base.id, connector->name, block->num_bytes);
6510 return;
6511 }
6512
6513 if (oui(vesa->oui[0], vesa->oui[1], vesa->oui[2]) != VESA_IEEE_OUI)
6514 return;
6515
6516 if (sizeof(*vesa) != sizeof(*block) + block->num_bytes) {
6517 drm_dbg_kms(connector->dev,
6518 "[CONNECTOR:%d:%s] Unexpected VESA vendor block size\n",
6519 connector->base.id, connector->name);
6520 return;
6521 }
6522
6523 switch (FIELD_GET(DISPLAYID_VESA_MSO_MODE, vesa->mso)) {
6524 default:
6525 drm_dbg_kms(connector->dev, "[CONNECTOR:%d:%s] Reserved MSO mode value\n",
6526 connector->base.id, connector->name);
6527 fallthrough;
6528 case 0:
6529 info->mso_stream_count = 0;
6530 break;
6531 case 1:
6532 info->mso_stream_count = 2; /* 2 or 4 links */
6533 break;
6534 case 2:
6535 info->mso_stream_count = 4; /* 4 links */
6536 break;
6537 }
6538
6539 if (!info->mso_stream_count) {
6540 info->mso_pixel_overlap = 0;
6541 return;
6542 }
6543
6544 info->mso_pixel_overlap = FIELD_GET(DISPLAYID_VESA_MSO_OVERLAP, vesa->mso);
6545 if (info->mso_pixel_overlap > 8) {
6546 drm_dbg_kms(connector->dev,
6547 "[CONNECTOR:%d:%s] Reserved MSO pixel overlap value %u\n",
6548 connector->base.id, connector->name,
6549 info->mso_pixel_overlap);
6550 info->mso_pixel_overlap = 8;
6551 }
6552
6553 drm_dbg_kms(connector->dev,
6554 "[CONNECTOR:%d:%s] MSO stream count %u, pixel overlap %u\n",
6555 connector->base.id, connector->name,
6556 info->mso_stream_count, info->mso_pixel_overlap);
6557 }
6558
drm_update_mso(struct drm_connector * connector,const struct drm_edid * drm_edid)6559 static void drm_update_mso(struct drm_connector *connector,
6560 const struct drm_edid *drm_edid)
6561 {
6562 const struct displayid_block *block;
6563 struct displayid_iter iter;
6564
6565 displayid_iter_edid_begin(drm_edid, &iter);
6566 displayid_iter_for_each(block, &iter) {
6567 if (block->tag == DATA_BLOCK_2_VENDOR_SPECIFIC)
6568 drm_parse_vesa_mso_data(connector, block);
6569 }
6570 displayid_iter_end(&iter);
6571 }
6572
6573 /* A connector has no EDID information, so we've got no EDID to compute quirks from. Reset
6574 * all of the values which would have been set from EDID
6575 */
drm_reset_display_info(struct drm_connector * connector)6576 static void drm_reset_display_info(struct drm_connector *connector)
6577 {
6578 struct drm_display_info *info = &connector->display_info;
6579
6580 info->width_mm = 0;
6581 info->height_mm = 0;
6582
6583 info->bpc = 0;
6584 info->color_formats = 0;
6585 info->cea_rev = 0;
6586 info->max_tmds_clock = 0;
6587 info->dvi_dual = false;
6588 info->is_hdmi = false;
6589 info->has_audio = false;
6590 info->has_hdmi_infoframe = false;
6591 info->rgb_quant_range_selectable = false;
6592 memset(&info->hdmi, 0, sizeof(info->hdmi));
6593
6594 info->edid_hdmi_rgb444_dc_modes = 0;
6595 info->edid_hdmi_ycbcr444_dc_modes = 0;
6596
6597 info->non_desktop = 0;
6598 memset(&info->monitor_range, 0, sizeof(info->monitor_range));
6599 memset(&info->luminance_range, 0, sizeof(info->luminance_range));
6600
6601 info->mso_stream_count = 0;
6602 info->mso_pixel_overlap = 0;
6603 info->max_dsc_bpp = 0;
6604
6605 kfree(info->vics);
6606 info->vics = NULL;
6607 info->vics_len = 0;
6608
6609 info->quirks = 0;
6610
6611 info->source_physical_address = CEC_PHYS_ADDR_INVALID;
6612 }
6613
update_displayid_info(struct drm_connector * connector,const struct drm_edid * drm_edid)6614 static void update_displayid_info(struct drm_connector *connector,
6615 const struct drm_edid *drm_edid)
6616 {
6617 struct drm_display_info *info = &connector->display_info;
6618 const struct displayid_block *block;
6619 struct displayid_iter iter;
6620
6621 displayid_iter_edid_begin(drm_edid, &iter);
6622 displayid_iter_for_each(block, &iter) {
6623 drm_dbg_kms(connector->dev,
6624 "[CONNECTOR:%d:%s] DisplayID extension version 0x%02x, primary use 0x%02x\n",
6625 connector->base.id, connector->name,
6626 displayid_version(&iter),
6627 displayid_primary_use(&iter));
6628 if (displayid_version(&iter) == DISPLAY_ID_STRUCTURE_VER_20 &&
6629 (displayid_primary_use(&iter) == PRIMARY_USE_HEAD_MOUNTED_VR ||
6630 displayid_primary_use(&iter) == PRIMARY_USE_HEAD_MOUNTED_AR))
6631 info->non_desktop = true;
6632
6633 /*
6634 * We're only interested in the base section here, no need to
6635 * iterate further.
6636 */
6637 break;
6638 }
6639 displayid_iter_end(&iter);
6640 }
6641
update_display_info(struct drm_connector * connector,const struct drm_edid * drm_edid)6642 static void update_display_info(struct drm_connector *connector,
6643 const struct drm_edid *drm_edid)
6644 {
6645 struct drm_display_info *info = &connector->display_info;
6646 const struct edid *edid;
6647
6648 drm_reset_display_info(connector);
6649 clear_eld(connector);
6650
6651 if (!drm_edid)
6652 return;
6653
6654 edid = drm_edid->edid;
6655
6656 info->quirks = edid_get_quirks(drm_edid);
6657
6658 info->width_mm = edid->width_cm * 10;
6659 info->height_mm = edid->height_cm * 10;
6660
6661 drm_get_monitor_range(connector, drm_edid);
6662
6663 if (edid->revision < 3)
6664 goto out;
6665
6666 if (!drm_edid_is_digital(drm_edid))
6667 goto out;
6668
6669 info->color_formats |= DRM_COLOR_FORMAT_RGB444;
6670 drm_parse_cea_ext(connector, drm_edid);
6671
6672 update_displayid_info(connector, drm_edid);
6673
6674 /*
6675 * Digital sink with "DFP 1.x compliant TMDS" according to EDID 1.3?
6676 *
6677 * For such displays, the DFP spec 1.0, section 3.10 "EDID support"
6678 * tells us to assume 8 bpc color depth if the EDID doesn't have
6679 * extensions which tell otherwise.
6680 */
6681 if (info->bpc == 0 && edid->revision == 3 &&
6682 edid->input & DRM_EDID_DIGITAL_DFP_1_X) {
6683 info->bpc = 8;
6684 drm_dbg_kms(connector->dev,
6685 "[CONNECTOR:%d:%s] Assigning DFP sink color depth as %d bpc.\n",
6686 connector->base.id, connector->name, info->bpc);
6687 }
6688
6689 /* Only defined for 1.4 with digital displays */
6690 if (edid->revision < 4)
6691 goto out;
6692
6693 switch (edid->input & DRM_EDID_DIGITAL_DEPTH_MASK) {
6694 case DRM_EDID_DIGITAL_DEPTH_6:
6695 info->bpc = 6;
6696 break;
6697 case DRM_EDID_DIGITAL_DEPTH_8:
6698 info->bpc = 8;
6699 break;
6700 case DRM_EDID_DIGITAL_DEPTH_10:
6701 info->bpc = 10;
6702 break;
6703 case DRM_EDID_DIGITAL_DEPTH_12:
6704 info->bpc = 12;
6705 break;
6706 case DRM_EDID_DIGITAL_DEPTH_14:
6707 info->bpc = 14;
6708 break;
6709 case DRM_EDID_DIGITAL_DEPTH_16:
6710 info->bpc = 16;
6711 break;
6712 case DRM_EDID_DIGITAL_DEPTH_UNDEF:
6713 default:
6714 info->bpc = 0;
6715 break;
6716 }
6717
6718 drm_dbg_kms(connector->dev,
6719 "[CONNECTOR:%d:%s] Assigning EDID-1.4 digital sink color depth as %d bpc.\n",
6720 connector->base.id, connector->name, info->bpc);
6721
6722 if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB444)
6723 info->color_formats |= DRM_COLOR_FORMAT_YCBCR444;
6724 if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB422)
6725 info->color_formats |= DRM_COLOR_FORMAT_YCBCR422;
6726
6727 drm_update_mso(connector, drm_edid);
6728
6729 out:
6730 if (info->quirks & EDID_QUIRK_NON_DESKTOP) {
6731 drm_dbg_kms(connector->dev, "[CONNECTOR:%d:%s] Non-desktop display%s\n",
6732 connector->base.id, connector->name,
6733 info->non_desktop ? " (redundant quirk)" : "");
6734 info->non_desktop = true;
6735 }
6736
6737 if (info->quirks & EDID_QUIRK_CAP_DSC_15BPP)
6738 info->max_dsc_bpp = 15;
6739
6740 if (info->quirks & EDID_QUIRK_FORCE_6BPC)
6741 info->bpc = 6;
6742
6743 if (info->quirks & EDID_QUIRK_FORCE_8BPC)
6744 info->bpc = 8;
6745
6746 if (info->quirks & EDID_QUIRK_FORCE_10BPC)
6747 info->bpc = 10;
6748
6749 if (info->quirks & EDID_QUIRK_FORCE_12BPC)
6750 info->bpc = 12;
6751
6752 /* Depends on info->cea_rev set by drm_parse_cea_ext() above */
6753 drm_edid_to_eld(connector, drm_edid);
6754 }
6755
drm_mode_displayid_detailed(struct drm_device * dev,struct displayid_detailed_timings_1 * timings,bool type_7)6756 static struct drm_display_mode *drm_mode_displayid_detailed(struct drm_device *dev,
6757 struct displayid_detailed_timings_1 *timings,
6758 bool type_7)
6759 {
6760 struct drm_display_mode *mode;
6761 unsigned pixel_clock = (timings->pixel_clock[0] |
6762 (timings->pixel_clock[1] << 8) |
6763 (timings->pixel_clock[2] << 16)) + 1;
6764 unsigned hactive = (timings->hactive[0] | timings->hactive[1] << 8) + 1;
6765 unsigned hblank = (timings->hblank[0] | timings->hblank[1] << 8) + 1;
6766 unsigned hsync = (timings->hsync[0] | (timings->hsync[1] & 0x7f) << 8) + 1;
6767 unsigned hsync_width = (timings->hsw[0] | timings->hsw[1] << 8) + 1;
6768 unsigned vactive = (timings->vactive[0] | timings->vactive[1] << 8) + 1;
6769 unsigned vblank = (timings->vblank[0] | timings->vblank[1] << 8) + 1;
6770 unsigned vsync = (timings->vsync[0] | (timings->vsync[1] & 0x7f) << 8) + 1;
6771 unsigned vsync_width = (timings->vsw[0] | timings->vsw[1] << 8) + 1;
6772 bool hsync_positive = (timings->hsync[1] >> 7) & 0x1;
6773 bool vsync_positive = (timings->vsync[1] >> 7) & 0x1;
6774
6775 mode = drm_mode_create(dev);
6776 if (!mode)
6777 return NULL;
6778
6779 /* resolution is kHz for type VII, and 10 kHz for type I */
6780 mode->clock = type_7 ? pixel_clock : pixel_clock * 10;
6781 mode->hdisplay = hactive;
6782 mode->hsync_start = mode->hdisplay + hsync;
6783 mode->hsync_end = mode->hsync_start + hsync_width;
6784 mode->htotal = mode->hdisplay + hblank;
6785
6786 mode->vdisplay = vactive;
6787 mode->vsync_start = mode->vdisplay + vsync;
6788 mode->vsync_end = mode->vsync_start + vsync_width;
6789 mode->vtotal = mode->vdisplay + vblank;
6790
6791 mode->flags = 0;
6792 mode->flags |= hsync_positive ? DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
6793 mode->flags |= vsync_positive ? DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
6794 mode->type = DRM_MODE_TYPE_DRIVER;
6795
6796 if (timings->flags & 0x80)
6797 mode->type |= DRM_MODE_TYPE_PREFERRED;
6798 drm_mode_set_name(mode);
6799
6800 return mode;
6801 }
6802
add_displayid_detailed_1_modes(struct drm_connector * connector,const struct displayid_block * block)6803 static int add_displayid_detailed_1_modes(struct drm_connector *connector,
6804 const struct displayid_block *block)
6805 {
6806 struct displayid_detailed_timing_block *det = (struct displayid_detailed_timing_block *)block;
6807 int i;
6808 int num_timings;
6809 struct drm_display_mode *newmode;
6810 int num_modes = 0;
6811 bool type_7 = block->tag == DATA_BLOCK_2_TYPE_7_DETAILED_TIMING;
6812 /* blocks must be multiple of 20 bytes length */
6813 if (block->num_bytes % 20)
6814 return 0;
6815
6816 num_timings = block->num_bytes / 20;
6817 for (i = 0; i < num_timings; i++) {
6818 struct displayid_detailed_timings_1 *timings = &det->timings[i];
6819
6820 newmode = drm_mode_displayid_detailed(connector->dev, timings, type_7);
6821 if (!newmode)
6822 continue;
6823
6824 drm_mode_probed_add(connector, newmode);
6825 num_modes++;
6826 }
6827 return num_modes;
6828 }
6829
add_displayid_detailed_modes(struct drm_connector * connector,const struct drm_edid * drm_edid)6830 static int add_displayid_detailed_modes(struct drm_connector *connector,
6831 const struct drm_edid *drm_edid)
6832 {
6833 const struct displayid_block *block;
6834 struct displayid_iter iter;
6835 int num_modes = 0;
6836
6837 displayid_iter_edid_begin(drm_edid, &iter);
6838 displayid_iter_for_each(block, &iter) {
6839 if (block->tag == DATA_BLOCK_TYPE_1_DETAILED_TIMING ||
6840 block->tag == DATA_BLOCK_2_TYPE_7_DETAILED_TIMING)
6841 num_modes += add_displayid_detailed_1_modes(connector, block);
6842 }
6843 displayid_iter_end(&iter);
6844
6845 return num_modes;
6846 }
6847
_drm_edid_connector_add_modes(struct drm_connector * connector,const struct drm_edid * drm_edid)6848 static int _drm_edid_connector_add_modes(struct drm_connector *connector,
6849 const struct drm_edid *drm_edid)
6850 {
6851 const struct drm_display_info *info = &connector->display_info;
6852 int num_modes = 0;
6853
6854 if (!drm_edid)
6855 return 0;
6856
6857 /*
6858 * EDID spec says modes should be preferred in this order:
6859 * - preferred detailed mode
6860 * - other detailed modes from base block
6861 * - detailed modes from extension blocks
6862 * - CVT 3-byte code modes
6863 * - standard timing codes
6864 * - established timing codes
6865 * - modes inferred from GTF or CVT range information
6866 *
6867 * We get this pretty much right.
6868 *
6869 * XXX order for additional mode types in extension blocks?
6870 */
6871 num_modes += add_detailed_modes(connector, drm_edid);
6872 num_modes += add_cvt_modes(connector, drm_edid);
6873 num_modes += add_standard_modes(connector, drm_edid);
6874 num_modes += add_established_modes(connector, drm_edid);
6875 num_modes += add_cea_modes(connector, drm_edid);
6876 num_modes += add_alternate_cea_modes(connector, drm_edid);
6877 num_modes += add_displayid_detailed_modes(connector, drm_edid);
6878 if (drm_edid->edid->features & DRM_EDID_FEATURE_CONTINUOUS_FREQ)
6879 num_modes += add_inferred_modes(connector, drm_edid);
6880
6881 if (info->quirks & (EDID_QUIRK_PREFER_LARGE_60 | EDID_QUIRK_PREFER_LARGE_75))
6882 edid_fixup_preferred(connector);
6883
6884 return num_modes;
6885 }
6886
6887 static void _drm_update_tile_info(struct drm_connector *connector,
6888 const struct drm_edid *drm_edid);
6889
_drm_edid_connector_property_update(struct drm_connector * connector,const struct drm_edid * drm_edid)6890 static int _drm_edid_connector_property_update(struct drm_connector *connector,
6891 const struct drm_edid *drm_edid)
6892 {
6893 struct drm_device *dev = connector->dev;
6894 int ret;
6895
6896 if (connector->edid_blob_ptr) {
6897 const void *old_edid = connector->edid_blob_ptr->data;
6898 size_t old_edid_size = connector->edid_blob_ptr->length;
6899
6900 if (old_edid && !drm_edid_eq(drm_edid, old_edid, old_edid_size)) {
6901 connector->epoch_counter++;
6902 drm_dbg_kms(dev, "[CONNECTOR:%d:%s] EDID changed, epoch counter %llu\n",
6903 connector->base.id, connector->name,
6904 connector->epoch_counter);
6905 }
6906 }
6907
6908 ret = drm_property_replace_global_blob(dev,
6909 &connector->edid_blob_ptr,
6910 drm_edid ? drm_edid->size : 0,
6911 drm_edid ? drm_edid->edid : NULL,
6912 &connector->base,
6913 dev->mode_config.edid_property);
6914 if (ret) {
6915 drm_dbg_kms(dev, "[CONNECTOR:%d:%s] EDID property update failed (%d)\n",
6916 connector->base.id, connector->name, ret);
6917 goto out;
6918 }
6919
6920 ret = drm_object_property_set_value(&connector->base,
6921 dev->mode_config.non_desktop_property,
6922 connector->display_info.non_desktop);
6923 if (ret) {
6924 drm_dbg_kms(dev, "[CONNECTOR:%d:%s] Non-desktop property update failed (%d)\n",
6925 connector->base.id, connector->name, ret);
6926 goto out;
6927 }
6928
6929 ret = drm_connector_set_tile_property(connector);
6930 if (ret) {
6931 drm_dbg_kms(dev, "[CONNECTOR:%d:%s] Tile property update failed (%d)\n",
6932 connector->base.id, connector->name, ret);
6933 goto out;
6934 }
6935
6936 out:
6937 return ret;
6938 }
6939
6940 /* For sysfs edid show implementation */
drm_edid_connector_property_show(struct drm_connector * connector,char * buf,loff_t off,size_t count)6941 ssize_t drm_edid_connector_property_show(struct drm_connector *connector,
6942 char *buf, loff_t off, size_t count)
6943 {
6944 const void *edid;
6945 size_t size;
6946 ssize_t ret = 0;
6947
6948 mutex_lock(&connector->dev->mode_config.mutex);
6949
6950 if (!connector->edid_blob_ptr)
6951 goto unlock;
6952
6953 edid = connector->edid_blob_ptr->data;
6954 size = connector->edid_blob_ptr->length;
6955 if (!edid)
6956 goto unlock;
6957
6958 if (off >= size)
6959 goto unlock;
6960
6961 if (off + count > size)
6962 count = size - off;
6963
6964 memcpy(buf, edid + off, count);
6965
6966 ret = count;
6967 unlock:
6968 mutex_unlock(&connector->dev->mode_config.mutex);
6969
6970 return ret;
6971 }
6972
6973 /**
6974 * drm_edid_connector_update - Update connector information from EDID
6975 * @connector: Connector
6976 * @drm_edid: EDID
6977 *
6978 * Update the connector display info, ELD, HDR metadata, relevant properties,
6979 * etc. from the passed in EDID.
6980 *
6981 * If EDID is NULL, reset the information.
6982 *
6983 * Must be called before calling drm_edid_connector_add_modes().
6984 *
6985 * Return: 0 on success, negative error on errors.
6986 */
drm_edid_connector_update(struct drm_connector * connector,const struct drm_edid * drm_edid)6987 int drm_edid_connector_update(struct drm_connector *connector,
6988 const struct drm_edid *drm_edid)
6989 {
6990 update_display_info(connector, drm_edid);
6991
6992 _drm_update_tile_info(connector, drm_edid);
6993
6994 return _drm_edid_connector_property_update(connector, drm_edid);
6995 }
6996 EXPORT_SYMBOL(drm_edid_connector_update);
6997
6998 /**
6999 * drm_edid_connector_add_modes - Update probed modes from the EDID property
7000 * @connector: Connector
7001 *
7002 * Add the modes from the previously updated EDID property to the connector
7003 * probed modes list.
7004 *
7005 * drm_edid_connector_update() must have been called before this to update the
7006 * EDID property.
7007 *
7008 * Return: The number of modes added, or 0 if we couldn't find any.
7009 */
drm_edid_connector_add_modes(struct drm_connector * connector)7010 int drm_edid_connector_add_modes(struct drm_connector *connector)
7011 {
7012 const struct drm_edid *drm_edid = NULL;
7013 int count;
7014
7015 if (connector->edid_blob_ptr)
7016 drm_edid = drm_edid_alloc(connector->edid_blob_ptr->data,
7017 connector->edid_blob_ptr->length);
7018
7019 count = _drm_edid_connector_add_modes(connector, drm_edid);
7020
7021 drm_edid_free(drm_edid);
7022
7023 return count;
7024 }
7025 EXPORT_SYMBOL(drm_edid_connector_add_modes);
7026
7027 /**
7028 * drm_connector_update_edid_property - update the edid property of a connector
7029 * @connector: drm connector
7030 * @edid: new value of the edid property
7031 *
7032 * This function creates a new blob modeset object and assigns its id to the
7033 * connector's edid property.
7034 * Since we also parse tile information from EDID's displayID block, we also
7035 * set the connector's tile property here. See drm_connector_set_tile_property()
7036 * for more details.
7037 *
7038 * This function is deprecated. Use drm_edid_connector_update() instead.
7039 *
7040 * Returns:
7041 * Zero on success, negative errno on failure.
7042 */
drm_connector_update_edid_property(struct drm_connector * connector,const struct edid * edid)7043 int drm_connector_update_edid_property(struct drm_connector *connector,
7044 const struct edid *edid)
7045 {
7046 struct drm_edid drm_edid;
7047
7048 return drm_edid_connector_update(connector, drm_edid_legacy_init(&drm_edid, edid));
7049 }
7050 EXPORT_SYMBOL(drm_connector_update_edid_property);
7051
7052 /**
7053 * drm_add_edid_modes - add modes from EDID data, if available
7054 * @connector: connector we're probing
7055 * @edid: EDID data
7056 *
7057 * Add the specified modes to the connector's mode list. Also fills out the
7058 * &drm_display_info structure and ELD in @connector with any information which
7059 * can be derived from the edid.
7060 *
7061 * This function is deprecated. Use drm_edid_connector_add_modes() instead.
7062 *
7063 * Return: The number of modes added or 0 if we couldn't find any.
7064 */
drm_add_edid_modes(struct drm_connector * connector,struct edid * edid)7065 int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)
7066 {
7067 struct drm_edid _drm_edid;
7068 const struct drm_edid *drm_edid;
7069
7070 if (edid && !drm_edid_is_valid(edid)) {
7071 drm_warn(connector->dev, "[CONNECTOR:%d:%s] EDID invalid.\n",
7072 connector->base.id, connector->name);
7073 edid = NULL;
7074 }
7075
7076 drm_edid = drm_edid_legacy_init(&_drm_edid, edid);
7077
7078 update_display_info(connector, drm_edid);
7079
7080 return _drm_edid_connector_add_modes(connector, drm_edid);
7081 }
7082 EXPORT_SYMBOL(drm_add_edid_modes);
7083
7084 /**
7085 * drm_add_modes_noedid - add modes for the connectors without EDID
7086 * @connector: connector we're probing
7087 * @hdisplay: the horizontal display limit
7088 * @vdisplay: the vertical display limit
7089 *
7090 * Add the specified modes to the connector's mode list. Only when the
7091 * hdisplay/vdisplay is not beyond the given limit, it will be added.
7092 *
7093 * Return: The number of modes added or 0 if we couldn't find any.
7094 */
drm_add_modes_noedid(struct drm_connector * connector,int hdisplay,int vdisplay)7095 int drm_add_modes_noedid(struct drm_connector *connector,
7096 int hdisplay, int vdisplay)
7097 {
7098 int i, count, num_modes = 0;
7099 struct drm_display_mode *mode;
7100 struct drm_device *dev = connector->dev;
7101
7102 count = ARRAY_SIZE(drm_dmt_modes);
7103 if (hdisplay < 0)
7104 hdisplay = 0;
7105 if (vdisplay < 0)
7106 vdisplay = 0;
7107
7108 for (i = 0; i < count; i++) {
7109 const struct drm_display_mode *ptr = &drm_dmt_modes[i];
7110
7111 if (hdisplay && vdisplay) {
7112 /*
7113 * Only when two are valid, they will be used to check
7114 * whether the mode should be added to the mode list of
7115 * the connector.
7116 */
7117 if (ptr->hdisplay > hdisplay ||
7118 ptr->vdisplay > vdisplay)
7119 continue;
7120 }
7121 if (drm_mode_vrefresh(ptr) > 61)
7122 continue;
7123 mode = drm_mode_duplicate(dev, ptr);
7124 if (mode) {
7125 drm_mode_probed_add(connector, mode);
7126 num_modes++;
7127 }
7128 }
7129 return num_modes;
7130 }
7131 EXPORT_SYMBOL(drm_add_modes_noedid);
7132
is_hdmi2_sink(const struct drm_connector * connector)7133 static bool is_hdmi2_sink(const struct drm_connector *connector)
7134 {
7135 /*
7136 * FIXME: sil-sii8620 doesn't have a connector around when
7137 * we need one, so we have to be prepared for a NULL connector.
7138 */
7139 if (!connector)
7140 return true;
7141
7142 return connector->display_info.hdmi.scdc.supported ||
7143 connector->display_info.color_formats & DRM_COLOR_FORMAT_YCBCR420;
7144 }
7145
drm_mode_hdmi_vic(const struct drm_connector * connector,const struct drm_display_mode * mode)7146 static u8 drm_mode_hdmi_vic(const struct drm_connector *connector,
7147 const struct drm_display_mode *mode)
7148 {
7149 bool has_hdmi_infoframe = connector ?
7150 connector->display_info.has_hdmi_infoframe : false;
7151
7152 if (!has_hdmi_infoframe)
7153 return 0;
7154
7155 /* No HDMI VIC when signalling 3D video format */
7156 if (mode->flags & DRM_MODE_FLAG_3D_MASK)
7157 return 0;
7158
7159 return drm_match_hdmi_mode(mode);
7160 }
7161
drm_mode_cea_vic(const struct drm_connector * connector,const struct drm_display_mode * mode)7162 static u8 drm_mode_cea_vic(const struct drm_connector *connector,
7163 const struct drm_display_mode *mode)
7164 {
7165 /*
7166 * HDMI spec says if a mode is found in HDMI 1.4b 4K modes
7167 * we should send its VIC in vendor infoframes, else send the
7168 * VIC in AVI infoframes. Lets check if this mode is present in
7169 * HDMI 1.4b 4K modes
7170 */
7171 if (drm_mode_hdmi_vic(connector, mode))
7172 return 0;
7173
7174 return drm_match_cea_mode(mode);
7175 }
7176
7177 /*
7178 * Avoid sending VICs defined in HDMI 2.0 in AVI infoframes to sinks that
7179 * conform to HDMI 1.4.
7180 *
7181 * HDMI 1.4 (CTA-861-D) VIC range: [1..64]
7182 * HDMI 2.0 (CTA-861-F) VIC range: [1..107]
7183 *
7184 * If the sink lists the VIC in CTA VDB, assume it's fine, regardless of HDMI
7185 * version.
7186 */
vic_for_avi_infoframe(const struct drm_connector * connector,u8 vic)7187 static u8 vic_for_avi_infoframe(const struct drm_connector *connector, u8 vic)
7188 {
7189 if (!is_hdmi2_sink(connector) && vic > 64 &&
7190 !cta_vdb_has_vic(connector, vic))
7191 return 0;
7192
7193 return vic;
7194 }
7195
7196 /**
7197 * drm_hdmi_avi_infoframe_from_display_mode() - fill an HDMI AVI infoframe with
7198 * data from a DRM display mode
7199 * @frame: HDMI AVI infoframe
7200 * @connector: the connector
7201 * @mode: DRM display mode
7202 *
7203 * Return: 0 on success or a negative error code on failure.
7204 */
7205 int
drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe * frame,const struct drm_connector * connector,const struct drm_display_mode * mode)7206 drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,
7207 const struct drm_connector *connector,
7208 const struct drm_display_mode *mode)
7209 {
7210 enum hdmi_picture_aspect picture_aspect;
7211 u8 vic, hdmi_vic;
7212
7213 if (!frame || !mode)
7214 return -EINVAL;
7215
7216 hdmi_avi_infoframe_init(frame);
7217
7218 if (mode->flags & DRM_MODE_FLAG_DBLCLK)
7219 frame->pixel_repeat = 1;
7220
7221 vic = drm_mode_cea_vic(connector, mode);
7222 hdmi_vic = drm_mode_hdmi_vic(connector, mode);
7223
7224 frame->picture_aspect = HDMI_PICTURE_ASPECT_NONE;
7225
7226 /*
7227 * As some drivers don't support atomic, we can't use connector state.
7228 * So just initialize the frame with default values, just the same way
7229 * as it's done with other properties here.
7230 */
7231 frame->content_type = HDMI_CONTENT_TYPE_GRAPHICS;
7232 frame->itc = 0;
7233
7234 /*
7235 * Populate picture aspect ratio from either
7236 * user input (if specified) or from the CEA/HDMI mode lists.
7237 */
7238 picture_aspect = mode->picture_aspect_ratio;
7239 if (picture_aspect == HDMI_PICTURE_ASPECT_NONE) {
7240 if (vic)
7241 picture_aspect = drm_get_cea_aspect_ratio(vic);
7242 else if (hdmi_vic)
7243 picture_aspect = drm_get_hdmi_aspect_ratio(hdmi_vic);
7244 }
7245
7246 /*
7247 * The infoframe can't convey anything but none, 4:3
7248 * and 16:9, so if the user has asked for anything else
7249 * we can only satisfy it by specifying the right VIC.
7250 */
7251 if (picture_aspect > HDMI_PICTURE_ASPECT_16_9) {
7252 if (vic) {
7253 if (picture_aspect != drm_get_cea_aspect_ratio(vic))
7254 return -EINVAL;
7255 } else if (hdmi_vic) {
7256 if (picture_aspect != drm_get_hdmi_aspect_ratio(hdmi_vic))
7257 return -EINVAL;
7258 } else {
7259 return -EINVAL;
7260 }
7261
7262 picture_aspect = HDMI_PICTURE_ASPECT_NONE;
7263 }
7264
7265 frame->video_code = vic_for_avi_infoframe(connector, vic);
7266 frame->picture_aspect = picture_aspect;
7267 frame->active_aspect = HDMI_ACTIVE_ASPECT_PICTURE;
7268 frame->scan_mode = HDMI_SCAN_MODE_UNDERSCAN;
7269
7270 return 0;
7271 }
7272 EXPORT_SYMBOL(drm_hdmi_avi_infoframe_from_display_mode);
7273
7274 /**
7275 * drm_hdmi_avi_infoframe_quant_range() - fill the HDMI AVI infoframe
7276 * quantization range information
7277 * @frame: HDMI AVI infoframe
7278 * @connector: the connector
7279 * @mode: DRM display mode
7280 * @rgb_quant_range: RGB quantization range (Q)
7281 */
7282 void
drm_hdmi_avi_infoframe_quant_range(struct hdmi_avi_infoframe * frame,const struct drm_connector * connector,const struct drm_display_mode * mode,enum hdmi_quantization_range rgb_quant_range)7283 drm_hdmi_avi_infoframe_quant_range(struct hdmi_avi_infoframe *frame,
7284 const struct drm_connector *connector,
7285 const struct drm_display_mode *mode,
7286 enum hdmi_quantization_range rgb_quant_range)
7287 {
7288 const struct drm_display_info *info = &connector->display_info;
7289
7290 /*
7291 * CEA-861:
7292 * "A Source shall not send a non-zero Q value that does not correspond
7293 * to the default RGB Quantization Range for the transmitted Picture
7294 * unless the Sink indicates support for the Q bit in a Video
7295 * Capabilities Data Block."
7296 *
7297 * HDMI 2.0 recommends sending non-zero Q when it does match the
7298 * default RGB quantization range for the mode, even when QS=0.
7299 */
7300 if (info->rgb_quant_range_selectable ||
7301 rgb_quant_range == drm_default_rgb_quant_range(mode))
7302 frame->quantization_range = rgb_quant_range;
7303 else
7304 frame->quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT;
7305
7306 /*
7307 * CEA-861-F:
7308 * "When transmitting any RGB colorimetry, the Source should set the
7309 * YQ-field to match the RGB Quantization Range being transmitted
7310 * (e.g., when Limited Range RGB, set YQ=0 or when Full Range RGB,
7311 * set YQ=1) and the Sink shall ignore the YQ-field."
7312 *
7313 * Unfortunate certain sinks (eg. VIZ Model 67/E261VA) get confused
7314 * by non-zero YQ when receiving RGB. There doesn't seem to be any
7315 * good way to tell which version of CEA-861 the sink supports, so
7316 * we limit non-zero YQ to HDMI 2.0 sinks only as HDMI 2.0 is based
7317 * on CEA-861-F.
7318 */
7319 if (!is_hdmi2_sink(connector) ||
7320 rgb_quant_range == HDMI_QUANTIZATION_RANGE_LIMITED)
7321 frame->ycc_quantization_range =
7322 HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
7323 else
7324 frame->ycc_quantization_range =
7325 HDMI_YCC_QUANTIZATION_RANGE_FULL;
7326 }
7327 EXPORT_SYMBOL(drm_hdmi_avi_infoframe_quant_range);
7328
7329 static enum hdmi_3d_structure
s3d_structure_from_display_mode(const struct drm_display_mode * mode)7330 s3d_structure_from_display_mode(const struct drm_display_mode *mode)
7331 {
7332 u32 layout = mode->flags & DRM_MODE_FLAG_3D_MASK;
7333
7334 switch (layout) {
7335 case DRM_MODE_FLAG_3D_FRAME_PACKING:
7336 return HDMI_3D_STRUCTURE_FRAME_PACKING;
7337 case DRM_MODE_FLAG_3D_FIELD_ALTERNATIVE:
7338 return HDMI_3D_STRUCTURE_FIELD_ALTERNATIVE;
7339 case DRM_MODE_FLAG_3D_LINE_ALTERNATIVE:
7340 return HDMI_3D_STRUCTURE_LINE_ALTERNATIVE;
7341 case DRM_MODE_FLAG_3D_SIDE_BY_SIDE_FULL:
7342 return HDMI_3D_STRUCTURE_SIDE_BY_SIDE_FULL;
7343 case DRM_MODE_FLAG_3D_L_DEPTH:
7344 return HDMI_3D_STRUCTURE_L_DEPTH;
7345 case DRM_MODE_FLAG_3D_L_DEPTH_GFX_GFX_DEPTH:
7346 return HDMI_3D_STRUCTURE_L_DEPTH_GFX_GFX_DEPTH;
7347 case DRM_MODE_FLAG_3D_TOP_AND_BOTTOM:
7348 return HDMI_3D_STRUCTURE_TOP_AND_BOTTOM;
7349 case DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF:
7350 return HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF;
7351 default:
7352 return HDMI_3D_STRUCTURE_INVALID;
7353 }
7354 }
7355
7356 /**
7357 * drm_hdmi_vendor_infoframe_from_display_mode() - fill an HDMI infoframe with
7358 * data from a DRM display mode
7359 * @frame: HDMI vendor infoframe
7360 * @connector: the connector
7361 * @mode: DRM display mode
7362 *
7363 * Note that there's is a need to send HDMI vendor infoframes only when using a
7364 * 4k or stereoscopic 3D mode. So when giving any other mode as input this
7365 * function will return -EINVAL, error that can be safely ignored.
7366 *
7367 * Return: 0 on success or a negative error code on failure.
7368 */
7369 int
drm_hdmi_vendor_infoframe_from_display_mode(struct hdmi_vendor_infoframe * frame,const struct drm_connector * connector,const struct drm_display_mode * mode)7370 drm_hdmi_vendor_infoframe_from_display_mode(struct hdmi_vendor_infoframe *frame,
7371 const struct drm_connector *connector,
7372 const struct drm_display_mode *mode)
7373 {
7374 /*
7375 * FIXME: sil-sii8620 doesn't have a connector around when
7376 * we need one, so we have to be prepared for a NULL connector.
7377 */
7378 bool has_hdmi_infoframe = connector ?
7379 connector->display_info.has_hdmi_infoframe : false;
7380 int err;
7381
7382 if (!frame || !mode)
7383 return -EINVAL;
7384
7385 if (!has_hdmi_infoframe)
7386 return -EINVAL;
7387
7388 err = hdmi_vendor_infoframe_init(frame);
7389 if (err < 0)
7390 return err;
7391
7392 /*
7393 * Even if it's not absolutely necessary to send the infoframe
7394 * (ie.vic==0 and s3d_struct==0) we will still send it if we
7395 * know that the sink can handle it. This is based on a
7396 * suggestion in HDMI 2.0 Appendix F. Apparently some sinks
7397 * have trouble realizing that they should switch from 3D to 2D
7398 * mode if the source simply stops sending the infoframe when
7399 * it wants to switch from 3D to 2D.
7400 */
7401 frame->vic = drm_mode_hdmi_vic(connector, mode);
7402 frame->s3d_struct = s3d_structure_from_display_mode(mode);
7403
7404 return 0;
7405 }
7406 EXPORT_SYMBOL(drm_hdmi_vendor_infoframe_from_display_mode);
7407
drm_parse_tiled_block(struct drm_connector * connector,const struct displayid_block * block)7408 static void drm_parse_tiled_block(struct drm_connector *connector,
7409 const struct displayid_block *block)
7410 {
7411 const struct displayid_tiled_block *tile = (struct displayid_tiled_block *)block;
7412 u16 w, h;
7413 u8 tile_v_loc, tile_h_loc;
7414 u8 num_v_tile, num_h_tile;
7415 struct drm_tile_group *tg;
7416
7417 w = tile->tile_size[0] | tile->tile_size[1] << 8;
7418 h = tile->tile_size[2] | tile->tile_size[3] << 8;
7419
7420 num_v_tile = (tile->topo[0] & 0xf) | (tile->topo[2] & 0x30);
7421 num_h_tile = (tile->topo[0] >> 4) | ((tile->topo[2] >> 2) & 0x30);
7422 tile_v_loc = (tile->topo[1] & 0xf) | ((tile->topo[2] & 0x3) << 4);
7423 tile_h_loc = (tile->topo[1] >> 4) | (((tile->topo[2] >> 2) & 0x3) << 4);
7424
7425 connector->has_tile = true;
7426 if (tile->tile_cap & 0x80)
7427 connector->tile_is_single_monitor = true;
7428
7429 connector->num_h_tile = num_h_tile + 1;
7430 connector->num_v_tile = num_v_tile + 1;
7431 connector->tile_h_loc = tile_h_loc;
7432 connector->tile_v_loc = tile_v_loc;
7433 connector->tile_h_size = w + 1;
7434 connector->tile_v_size = h + 1;
7435
7436 drm_dbg_kms(connector->dev,
7437 "[CONNECTOR:%d:%s] tile cap 0x%x, size %dx%d, num tiles %dx%d, location %dx%d, vend %c%c%c",
7438 connector->base.id, connector->name,
7439 tile->tile_cap,
7440 connector->tile_h_size, connector->tile_v_size,
7441 connector->num_h_tile, connector->num_v_tile,
7442 connector->tile_h_loc, connector->tile_v_loc,
7443 tile->topology_id[0], tile->topology_id[1], tile->topology_id[2]);
7444
7445 tg = drm_mode_get_tile_group(connector->dev, tile->topology_id);
7446 if (!tg)
7447 tg = drm_mode_create_tile_group(connector->dev, tile->topology_id);
7448 if (!tg)
7449 return;
7450
7451 if (connector->tile_group != tg) {
7452 /* if we haven't got a pointer,
7453 take the reference, drop ref to old tile group */
7454 if (connector->tile_group)
7455 drm_mode_put_tile_group(connector->dev, connector->tile_group);
7456 connector->tile_group = tg;
7457 } else {
7458 /* if same tile group, then release the ref we just took. */
7459 drm_mode_put_tile_group(connector->dev, tg);
7460 }
7461 }
7462
displayid_is_tiled_block(const struct displayid_iter * iter,const struct displayid_block * block)7463 static bool displayid_is_tiled_block(const struct displayid_iter *iter,
7464 const struct displayid_block *block)
7465 {
7466 return (displayid_version(iter) < DISPLAY_ID_STRUCTURE_VER_20 &&
7467 block->tag == DATA_BLOCK_TILED_DISPLAY) ||
7468 (displayid_version(iter) == DISPLAY_ID_STRUCTURE_VER_20 &&
7469 block->tag == DATA_BLOCK_2_TILED_DISPLAY_TOPOLOGY);
7470 }
7471
_drm_update_tile_info(struct drm_connector * connector,const struct drm_edid * drm_edid)7472 static void _drm_update_tile_info(struct drm_connector *connector,
7473 const struct drm_edid *drm_edid)
7474 {
7475 const struct displayid_block *block;
7476 struct displayid_iter iter;
7477
7478 connector->has_tile = false;
7479
7480 displayid_iter_edid_begin(drm_edid, &iter);
7481 displayid_iter_for_each(block, &iter) {
7482 if (displayid_is_tiled_block(&iter, block))
7483 drm_parse_tiled_block(connector, block);
7484 }
7485 displayid_iter_end(&iter);
7486
7487 if (!connector->has_tile && connector->tile_group) {
7488 drm_mode_put_tile_group(connector->dev, connector->tile_group);
7489 connector->tile_group = NULL;
7490 }
7491 }
7492
7493 /**
7494 * drm_edid_is_digital - is digital?
7495 * @drm_edid: The EDID
7496 *
7497 * Return true if input is digital.
7498 */
drm_edid_is_digital(const struct drm_edid * drm_edid)7499 bool drm_edid_is_digital(const struct drm_edid *drm_edid)
7500 {
7501 return drm_edid && drm_edid->edid &&
7502 drm_edid->edid->input & DRM_EDID_INPUT_DIGITAL;
7503 }
7504 EXPORT_SYMBOL(drm_edid_is_digital);
7505