summaryrefslogtreecommitdiff
path: root/include/drm/drm_dp_helper.h
blob: edffd1dcca3ed88f4a932eb26304a21cfa21cbea (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
/*
 * Copyright © 2008 Keith Packard
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided that
 * the above copyright notice appear in all copies and that both that copyright
 * notice and this permission notice appear in supporting documentation, and
 * that the name of the copyright holders not be used in advertising or
 * publicity pertaining to distribution of the software without specific,
 * written prior permission.  The copyright holders make no representations
 * about the suitability of this software for any purpose.  It is provided "as
 * is" without express or implied warranty.
 *
 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
 * OF THIS SOFTWARE.
 */

#ifndef _DRM_DP_HELPER_H_
#define _DRM_DP_HELPER_H_

#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/types.h>
#include <drm/drm_connector.h>

struct drm_device;

/*
 * Unless otherwise noted, all values are from the DP 1.1a spec.  Note that
 * DP and DPCD versions are independent.  Differences from 1.0 are not noted,
 * 1.0 devices basically don't exist in the wild.
 *
 * Abbreviations, in chronological order:
 *
 * eDP: Embedded DisplayPort version 1
 * DPI: DisplayPort Interoperability Guideline v1.1a
 * 1.2: DisplayPort 1.2
 * MST: Multistream Transport - part of DP 1.2a
 *
 * 1.2 formally includes both eDP and DPI definitions.
 */

/* MSA (Main Stream Attribute) MISC bits (as MISC1<<8|MISC0) */
#define DP_MSA_MISC_SYNC_CLOCK			(1 << 0)
#define DP_MSA_MISC_INTERLACE_VTOTAL_EVEN	(1 << 8)
#define DP_MSA_MISC_STEREO_NO_3D		(0 << 9)
#define DP_MSA_MISC_STEREO_PROG_RIGHT_EYE	(1 << 9)
#define DP_MSA_MISC_STEREO_PROG_LEFT_EYE	(3 << 9)
/* bits per component for non-RAW */
#define DP_MSA_MISC_6_BPC			(0 << 5)
#define DP_MSA_MISC_8_BPC			(1 << 5)
#define DP_MSA_MISC_10_BPC			(2 << 5)
#define DP_MSA_MISC_12_BPC			(3 << 5)
#define DP_MSA_MISC_16_BPC			(4 << 5)
/* bits per component for RAW */
#define DP_MSA_MISC_RAW_6_BPC			(1 << 5)
#define DP_MSA_MISC_RAW_7_BPC			(2 << 5)
#define DP_MSA_MISC_RAW_8_BPC			(3 << 5)
#define DP_MSA_MISC_RAW_10_BPC			(4 << 5)
#define DP_MSA_MISC_RAW_12_BPC			(5 << 5)
#define DP_MSA_MISC_RAW_14_BPC			(6 << 5)
#define DP_MSA_MISC_RAW_16_BPC			(7 << 5)
/* pixel encoding/colorimetry format */
#define _DP_MSA_MISC_COLOR(misc1_7, misc0_21, misc0_3, misc0_4) \
	((misc1_7) << 15 | (misc0_4) << 4 | (misc0_3) << 3 | ((misc0_21) << 1))
#define DP_MSA_MISC_COLOR_RGB			_DP_MSA_MISC_COLOR(0, 0, 0, 0)
#define DP_MSA_MISC_COLOR_CEA_RGB		_DP_MSA_MISC_COLOR(0, 0, 1, 0)
#define DP_MSA_MISC_COLOR_RGB_WIDE_FIXED	_DP_MSA_MISC_COLOR(0, 3, 0, 0)
#define DP_MSA_MISC_COLOR_RGB_WIDE_FLOAT	_DP_MSA_MISC_COLOR(0, 3, 0, 1)
#define DP_MSA_MISC_COLOR_Y_ONLY		_DP_MSA_MISC_COLOR(1, 0, 0, 0)
#define DP_MSA_MISC_COLOR_RAW			_DP_MSA_MISC_COLOR(1, 1, 0, 0)
#define DP_MSA_MISC_COLOR_YCBCR_422_BT601	_DP_MSA_MISC_COLOR(0, 1, 1, 0)
#define DP_MSA_MISC_COLOR_YCBCR_422_BT709	_DP_MSA_MISC_COLOR(0, 1, 1, 1)
#define DP_MSA_MISC_COLOR_YCBCR_444_BT601	_DP_MSA_MISC_COLOR(0, 2, 1, 0)
#define DP_MSA_MISC_COLOR_YCBCR_444_BT709	_DP_MSA_MISC_COLOR(0, 2, 1, 1)
#define DP_MSA_MISC_COLOR_XVYCC_422_BT601	_DP_MSA_MISC_COLOR(0, 1, 0, 0)
#define DP_MSA_MISC_COLOR_XVYCC_422_BT709	_DP_MSA_MISC_COLOR(0, 1, 0, 1)
#define DP_MSA_MISC_COLOR_XVYCC_444_BT601	_DP_MSA_MISC_COLOR(0, 2, 0, 0)
#define DP_MSA_MISC_COLOR_XVYCC_444_BT709	_DP_MSA_MISC_COLOR(0, 2, 0, 1)
#define DP_MSA_MISC_COLOR_OPRGB			_DP_MSA_MISC_COLOR(0, 0, 1, 1)
#define DP_MSA_MISC_COLOR_DCI_P3		_DP_MSA_MISC_COLOR(0, 3, 1, 0)
#define DP_MSA_MISC_COLOR_COLOR_PROFILE		_DP_MSA_MISC_COLOR(0, 3, 1, 1)
#define DP_MSA_MISC_COLOR_VSC_SDP		(1 << 14)

#define DP_AUX_MAX_PAYLOAD_BYTES	16

#define DP_AUX_I2C_WRITE		0x0
#define DP_AUX_I2C_READ			0x1
#define DP_AUX_I2C_WRITE_STATUS_UPDATE	0x2
#define DP_AUX_I2C_MOT			0x4
#define DP_AUX_NATIVE_WRITE		0x8
#define DP_AUX_NATIVE_READ		0x9

#define DP_AUX_NATIVE_REPLY_ACK		(0x0 << 0)
#define DP_AUX_NATIVE_REPLY_NACK	(0x1 << 0)
#define DP_AUX_NATIVE_REPLY_DEFER	(0x2 << 0)
#define DP_AUX_NATIVE_REPLY_MASK	(0x3 << 0)

#define DP_AUX_I2C_REPLY_ACK		(0x0 << 2)
#define DP_AUX_I2C_REPLY_NACK		(0x1 << 2)
#define DP_AUX_I2C_REPLY_DEFER		(0x2 << 2)
#define DP_AUX_I2C_REPLY_MASK		(0x3 << 2)

/* DPCD Field Address Mapping */

/* Receiver Capability */
#define DP_DPCD_REV                         0x000
# define DP_DPCD_REV_10                     0x10
# define DP_DPCD_REV_11                     0x11
# define DP_DPCD_REV_12                     0x12
# define DP_DPCD_REV_13                     0x13
# define DP_DPCD_REV_14                     0x14

#define DP_MAX_LINK_RATE                    0x001

#define DP_MAX_LANE_COUNT                   0x002
# define DP_MAX_LANE_COUNT_MASK		    0x1f
# define DP_TPS3_SUPPORTED		    (1 << 6) /* 1.2 */
# define DP_ENHANCED_FRAME_CAP		    (1 << 7)

#define DP_MAX_DOWNSPREAD                   0x003
# define DP_MAX_DOWNSPREAD_0_5		    (1 << 0)
# define DP_STREAM_REGENERATION_STATUS_CAP  (1 << 1) /* 2.0 */
# define DP_NO_AUX_HANDSHAKE_LINK_TRAINING  (1 << 6)
# define DP_TPS4_SUPPORTED                  (1 << 7)

#define DP_NORP                             0x004

#define DP_DOWNSTREAMPORT_PRESENT           0x005
# define DP_DWN_STRM_PORT_PRESENT           (1 << 0)
# define DP_DWN_STRM_PORT_TYPE_MASK         0x06
# define DP_DWN_STRM_PORT_TYPE_DP           (0 << 1)
# define DP_DWN_STRM_PORT_TYPE_ANALOG       (1 << 1)
# define DP_DWN_STRM_PORT_TYPE_TMDS         (2 << 1)
# define DP_DWN_STRM_PORT_TYPE_OTHER        (3 << 1)
# define DP_FORMAT_CONVERSION               (1 << 3)
# define DP_DETAILED_CAP_INFO_AVAILABLE	    (1 << 4) /* DPI */

#define DP_MAIN_LINK_CHANNEL_CODING         0x006
# define DP_CAP_ANSI_8B10B		    (1 << 0)
# define DP_CAP_ANSI_128B132B               (1 << 1) /* 2.0 */

#define DP_DOWN_STREAM_PORT_COUNT	    0x007
# define DP_PORT_COUNT_MASK		    0x0f
# define DP_MSA_TIMING_PAR_IGNORED	    (1 << 6) /* eDP */
# define DP_OUI_SUPPORT			    (1 << 7)

#define DP_RECEIVE_PORT_0_CAP_0		    0x008
# define DP_LOCAL_EDID_PRESENT		    (1 << 1)
# define DP_ASSOCIATED_TO_PRECEDING_PORT    (1 << 2)

#define DP_RECEIVE_PORT_0_BUFFER_SIZE	    0x009

#define DP_RECEIVE_PORT_1_CAP_0		    0x00a
#define DP_RECEIVE_PORT_1_BUFFER_SIZE       0x00b

#define DP_I2C_SPEED_CAP		    0x00c    /* DPI */
# define DP_I2C_SPEED_1K		    0x01
# define DP_I2C_SPEED_5K		    0x02
# define DP_I2C_SPEED_10K		    0x04
# define DP_I2C_SPEED_100K		    0x08
# define DP_I2C_SPEED_400K		    0x10
# define DP_I2C_SPEED_1M		    0x20

#define DP_EDP_CONFIGURATION_CAP            0x00d   /* XXX 1.2? */
# define DP_ALTERNATE_SCRAMBLER_RESET_CAP   (1 << 0)
# define DP_FRAMING_CHANGE_CAP		    (1 << 1)
# define DP_DPCD_DISPLAY_CONTROL_CAPABLE     (1 << 3) /* edp v1.2 or higher */

#define DP_TRAINING_AUX_RD_INTERVAL             0x00e   /* XXX 1.2? */
# define DP_TRAINING_AUX_RD_MASK                0x7F    /* DP 1.3 */
# define DP_EXTENDED_RECEIVER_CAP_FIELD_PRESENT	(1 << 7) /* DP 1.3 */

#define DP_ADAPTER_CAP			    0x00f   /* 1.2 */
# define DP_FORCE_LOAD_SENSE_CAP	    (1 << 0)
# define DP_ALTERNATE_I2C_PATTERN_CAP	    (1 << 1)

#define DP_SUPPORTED_LINK_RATES		    0x010 /* eDP 1.4 */
# define DP_MAX_SUPPORTED_RATES		     8	    /* 16-bit little-endian */

/* Multiple stream transport */
#define DP_FAUX_CAP			    0x020   /* 1.2 */
# define DP_FAUX_CAP_1			    (1 << 0)

#define DP_SINK_VIDEO_FALLBACK_FORMATS      0x020   /* 2.0 */
# define DP_FALLBACK_1024x768_60HZ_24BPP    (1 << 0)
# define DP_FALLBACK_1280x720_60HZ_24BPP    (1 << 1)
# define DP_FALLBACK_1920x1080_60HZ_24BPP   (1 << 2)

#define DP_MSTM_CAP			    0x021   /* 1.2 */
# define DP_MST_CAP			    (1 << 0)
# define DP_SINGLE_STREAM_SIDEBAND_MSG      (1 << 1) /* 2.0 */

#define DP_NUMBER_OF_AUDIO_ENDPOINTS	    0x022   /* 1.2 */

/* AV_SYNC_DATA_BLOCK                                  1.2 */
#define DP_AV_GRANULARITY		    0x023
# define DP_AG_FACTOR_MASK		    (0xf << 0)
# define DP_AG_FACTOR_3MS		    (0 << 0)
# define DP_AG_FACTOR_2MS		    (1 << 0)
# define DP_AG_FACTOR_1MS		    (2 << 0)
# define DP_AG_FACTOR_500US		    (3 << 0)
# define DP_AG_FACTOR_200US		    (4 << 0)
# define DP_AG_FACTOR_100US		    (5 << 0)
# define DP_AG_FACTOR_10US		    (6 << 0)
# define DP_AG_FACTOR_1US		    (7 << 0)
# define DP_VG_FACTOR_MASK		    (0xf << 4)
# define DP_VG_FACTOR_3MS		    (0 << 4)
# define DP_VG_FACTOR_2MS		    (1 << 4)
# define DP_VG_FACTOR_1MS		    (2 << 4)
# define DP_VG_FACTOR_500US		    (3 << 4)
# define DP_VG_FACTOR_200US		    (4 << 4)
# define DP_VG_FACTOR_100US		    (5 << 4)

#define DP_AUD_DEC_LAT0			    0x024
#define DP_AUD_DEC_LAT1			    0x025

#define DP_AUD_PP_LAT0			    0x026
#define DP_AUD_PP_LAT1			    0x027

#define DP_VID_INTER_LAT		    0x028

#define DP_VID_PROG_LAT			    0x029

#define DP_REP_LAT			    0x02a

#define DP_AUD_DEL_INS0			    0x02b
#define DP_AUD_DEL_INS1			    0x02c
#define DP_AUD_DEL_INS2			    0x02d
/* End of AV_SYNC_DATA_BLOCK */

#define DP_RECEIVER_ALPM_CAP		    0x02e   /* eDP 1.4 */
# define DP_ALPM_CAP			    (1 << 0)

#define DP_SINK_DEVICE_AUX_FRAME_SYNC_CAP   0x02f   /* eDP 1.4 */
# define DP_AUX_FRAME_SYNC_CAP		    (1 << 0)

#define DP_GUID				    0x030   /* 1.2 */

#define DP_DSC_SUPPORT                      0x060   /* DP 1.4 */
# define DP_DSC_DECOMPRESSION_IS_SUPPORTED  (1 << 0)

#define DP_DSC_REV                          0x061
# define DP_DSC_MAJOR_MASK                  (0xf << 0)
# define DP_DSC_MINOR_MASK                  (0xf << 4)
# define DP_DSC_MAJOR_SHIFT                 0
# define DP_DSC_MINOR_SHIFT                 4

#define DP_DSC_RC_BUF_BLK_SIZE              0x062
# define DP_DSC_RC_BUF_BLK_SIZE_1           0x0
# define DP_DSC_RC_BUF_BLK_SIZE_4           0x1
# define DP_DSC_RC_BUF_BLK_SIZE_16          0x2
# define DP_DSC_RC_BUF_BLK_SIZE_64          0x3

#define DP_DSC_RC_BUF_SIZE                  0x063

#define DP_DSC_SLICE_CAP_1                  0x064
# define DP_DSC_1_PER_DP_DSC_SINK           (1 << 0)
# define DP_DSC_2_PER_DP_DSC_SINK           (1 << 1)
# define DP_DSC_4_PER_DP_DSC_SINK           (1 << 3)
# define DP_DSC_6_PER_DP_DSC_SINK           (1 << 4)
# define DP_DSC_8_PER_DP_DSC_SINK           (1 << 5)
# define DP_DSC_10_PER_DP_DSC_SINK          (1 << 6)
# define DP_DSC_12_PER_DP_DSC_SINK          (1 << 7)

#define DP_DSC_LINE_BUF_BIT_DEPTH           0x065
# define DP_DSC_LINE_BUF_BIT_DEPTH_MASK     (0xf << 0)
# define DP_DSC_LINE_BUF_BIT_DEPTH_9        0x0
# define DP_DSC_LINE_BUF_BIT_DEPTH_10       0x1
# define DP_DSC_LINE_BUF_BIT_DEPTH_11       0x2
# define DP_DSC_LINE_BUF_BIT_DEPTH_12       0x3
# define DP_DSC_LINE_BUF_BIT_DEPTH_13       0x4
# define DP_DSC_LINE_BUF_BIT_DEPTH_14       0x5
# define DP_DSC_LINE_BUF_BIT_DEPTH_15       0x6
# define DP_DSC_LINE_BUF_BIT_DEPTH_16       0x7
# define DP_DSC_LINE_BUF_BIT_DEPTH_8        0x8

#define DP_DSC_BLK_PREDICTION_SUPPORT       0x066
# define DP_DSC_BLK_PREDICTION_IS_SUPPORTED (1 << 0)

#define DP_DSC_MAX_BITS_PER_PIXEL_LOW       0x067   /* eDP 1.4 */

#define DP_DSC_MAX_BITS_PER_PIXEL_HI        0x068   /* eDP 1.4 */
# define DP_DSC_MAX_BITS_PER_PIXEL_HI_MASK  (0x3 << 0)
# define DP_DSC_MAX_BITS_PER_PIXEL_HI_SHIFT 8

#define DP_DSC_DEC_COLOR_FORMAT_CAP         0x069
# define DP_DSC_RGB                         (1 << 0)
# define DP_DSC_YCbCr444                    (1 << 1)
# define DP_DSC_YCbCr422_Simple             (1 << 2)
# define DP_DSC_YCbCr422_Native             (1 << 3)
# define DP_DSC_YCbCr420_Native             (1 << 4)

#define DP_DSC_DEC_COLOR_DEPTH_CAP          0x06A
# define DP_DSC_8_BPC                       (1 << 1)
# define DP_DSC_10_BPC                      (1 << 2)
# define DP_DSC_12_BPC                      (1 << 3)

#define DP_DSC_PEAK_THROUGHPUT              0x06B
# define DP_DSC_THROUGHPUT_MODE_0_MASK      (0xf << 0)
# define DP_DSC_THROUGHPUT_MODE_0_SHIFT     0
# define DP_DSC_THROUGHPUT_MODE_0_UNSUPPORTED 0
# define DP_DSC_THROUGHPUT_MODE_0_340       (1 << 0)
# define DP_DSC_THROUGHPUT_MODE_0_400       (2 << 0)
# define DP_DSC_THROUGHPUT_MODE_0_450       (3 << 0)
# define DP_DSC_THROUGHPUT_MODE_0_500       (4 << 0)
# define DP_DSC_THROUGHPUT_MODE_0_550       (5 << 0)
# define DP_DSC_THROUGHPUT_MODE_0_600       (6 << 0)
# define DP_DSC_THROUGHPUT_MODE_0_650       (7 << 0)
# define DP_DSC_THROUGHPUT_MODE_0_700       (8 << 0)
# define DP_DSC_THROUGHPUT_MODE_0_750       (9 << 0)
# define DP_DSC_THROUGHPUT_MODE_0_800       (10 << 0)
# define DP_DSC_THROUGHPUT_MODE_0_850       (11 << 0)
# define DP_DSC_THROUGHPUT_MODE_0_900       (12 << 0)
# define DP_DSC_THROUGHPUT_MODE_0_950       (13 << 0)
# define DP_DSC_THROUGHPUT_MODE_0_1000      (14 << 0)
# define DP_DSC_THROUGHPUT_MODE_0_170       (15 << 0) /* 1.4a */
# define DP_DSC_THROUGHPUT_MODE_1_MASK      (0xf << 4)
# define DP_DSC_THROUGHPUT_MODE_1_SHIFT     4
# define DP_DSC_THROUGHPUT_MODE_1_UNSUPPORTED 0
# define DP_DSC_THROUGHPUT_MODE_1_340       (1 << 4)
# define DP_DSC_THROUGHPUT_MODE_1_400       (2 << 4)
# define DP_DSC_THROUGHPUT_MODE_1_450       (3 << 4)
# define DP_DSC_THROUGHPUT_MODE_1_500       (4 << 4)
# define DP_DSC_THROUGHPUT_MODE_1_550       (5 << 4)
# define DP_DSC_THROUGHPUT_MODE_1_600       (6 << 4)
# define DP_DSC_THROUGHPUT_MODE_1_650       (7 << 4)
# define DP_DSC_THROUGHPUT_MODE_1_700       (8 << 4)
# define DP_DSC_THROUGHPUT_MODE_1_750       (9 << 4)
# define DP_DSC_THROUGHPUT_MODE_1_800       (10 << 4)
# define DP_DSC_THROUGHPUT_MODE_1_850       (11 << 4)
# define DP_DSC_THROUGHPUT_MODE_1_900       (12 << 4)
# define DP_DSC_THROUGHPUT_MODE_1_950       (13 << 4)
# define DP_DSC_THROUGHPUT_MODE_1_1000      (14 << 4)
# define DP_DSC_THROUGHPUT_MODE_1_170       (15 << 4)

#define DP_DSC_MAX_SLICE_WIDTH              0x06C
#define DP_DSC_MIN_SLICE_WIDTH_VALUE        2560
#define DP_DSC_SLICE_WIDTH_MULTIPLIER       320

#define DP_DSC_SLICE_CAP_2                  0x06D
# define DP_DSC_16_PER_DP_DSC_SINK          (1 << 0)
# define DP_DSC_20_PER_DP_DSC_SINK          (1 << 1)
# define DP_DSC_24_PER_DP_DSC_SINK          (1 << 2)

#define DP_DSC_BITS_PER_PIXEL_INC           0x06F
# define DP_DSC_BITS_PER_PIXEL_1_16         0x0
# define DP_DSC_BITS_PER_PIXEL_1_8          0x1
# define DP_DSC_BITS_PER_PIXEL_1_4          0x2
# define DP_DSC_BITS_PER_PIXEL_1_2          0x3
# define DP_DSC_BITS_PER_PIXEL_1            0x4

#define DP_PSR_SUPPORT                      0x070   /* XXX 1.2? */
# define DP_PSR_IS_SUPPORTED                1
# define DP_PSR2_IS_SUPPORTED		    2	    /* eDP 1.4 */
# define DP_PSR2_WITH_Y_COORD_IS_SUPPORTED  3	    /* eDP 1.4a */

#define DP_PSR_CAPS                         0x071   /* XXX 1.2? */
# define DP_PSR_NO_TRAIN_ON_EXIT            1
# define DP_PSR_SETUP_TIME_330              (0 << 1)
# define DP_PSR_SETUP_TIME_275              (1 << 1)
# define DP_PSR_SETUP_TIME_220              (2 << 1)
# define DP_PSR_SETUP_TIME_165              (3 << 1)
# define DP_PSR_SETUP_TIME_110              (4 << 1)
# define DP_PSR_SETUP_TIME_55               (5 << 1)
# define DP_PSR_SETUP_TIME_0                (6 << 1)
# define DP_PSR_SETUP_TIME_MASK             (7 << 1)
# define DP_PSR_SETUP_TIME_SHIFT            1
# define DP_PSR2_SU_Y_COORDINATE_REQUIRED   (1 << 4)  /* eDP 1.4a */
# define DP_PSR2_SU_GRANULARITY_REQUIRED    (1 << 5)  /* eDP 1.4b */

#define DP_PSR2_SU_X_GRANULARITY	    0x072 /* eDP 1.4b */
#define DP_PSR2_SU_Y_GRANULARITY	    0x074 /* eDP 1.4b */

/*
 * 0x80-0x8f describe downstream port capabilities, but there are two layouts
 * based on whether DP_DETAILED_CAP_INFO_AVAILABLE was set.  If it was not,
 * each port's descriptor is one byte wide.  If it was set, each port's is
 * four bytes wide, starting with the one byte from the base info.  As of
 * DP interop v1.1a only VGA defines additional detail.
 */

/* offset 0 */
#define DP_DOWNSTREAM_PORT_0		    0x80
# define DP_DS_PORT_TYPE_MASK		    (7 << 0)
# define DP_DS_PORT_TYPE_DP		    0
# define DP_DS_PORT_TYPE_VGA		    1
# define DP_DS_PORT_TYPE_DVI		    2
# define DP_DS_PORT_TYPE_HDMI		    3
# define DP_DS_PORT_TYPE_NON_EDID	    4
# define DP_DS_PORT_TYPE_DP_DUALMODE        5
# define DP_DS_PORT_TYPE_WIRELESS           6
# define DP_DS_PORT_HPD			    (1 << 3)
# define DP_DS_NON_EDID_MASK		    (0xf << 4)
# define DP_DS_NON_EDID_720x480i_60	    (1 << 4)
# define DP_DS_NON_EDID_720x480i_50	    (2 << 4)
# define DP_DS_NON_EDID_1920x1080i_60	    (3 << 4)
# define DP_DS_NON_EDID_1920x1080i_50	    (4 << 4)
# define DP_DS_NON_EDID_1280x720_60	    (5 << 4)
# define DP_DS_NON_EDID_1280x720_50	    (7 << 4)
/* offset 1 for VGA is maximum megapixels per second / 8 */
/* offset 1 for DVI/HDMI is maximum TMDS clock in Mbps / 2.5 */
/* offset 2 for VGA/DVI/HDMI */
# define DP_DS_MAX_BPC_MASK	            (3 << 0)
# define DP_DS_8BPC		            0
# define DP_DS_10BPC		            1
# define DP_DS_12BPC		            2
# define DP_DS_16BPC		            3
/* HDMI2.1 PCON FRL CONFIGURATION */
# define DP_PCON_MAX_FRL_BW                 (7 << 2)
# define DP_PCON_MAX_0GBPS                  (0 << 2)
# define DP_PCON_MAX_9GBPS                  (1 << 2)
# define DP_PCON_MAX_18GBPS                 (2 << 2)
# define DP_PCON_MAX_24GBPS                 (3 << 2)
# define DP_PCON_MAX_32GBPS                 (4 << 2)
# define DP_PCON_MAX_40GBPS                 (5 << 2)
# define DP_PCON_MAX_48GBPS                 (6 << 2)
# define DP_PCON_SOURCE_CTL_MODE            (1 << 5)

/* offset 3 for DVI */
# define DP_DS_DVI_DUAL_LINK		    (1 << 1)
# define DP_DS_DVI_HIGH_COLOR_DEPTH	    (1 << 2)
/* offset 3 for HDMI */
# define DP_DS_HDMI_FRAME_SEQ_TO_FRAME_PACK (1 << 0)
# define DP_DS_HDMI_YCBCR422_PASS_THROUGH   (1 << 1)
# define DP_DS_HDMI_YCBCR420_PASS_THROUGH   (1 << 2)
# define DP_DS_HDMI_YCBCR444_TO_422_CONV    (1 << 3)
# define DP_DS_HDMI_YCBCR444_TO_420_CONV    (1 << 4)

/*
 * VESA DP-to-HDMI PCON Specification adds caps for colorspace
 * conversion in DFP cap DPCD 83h. Sec6.1 Table-3.
 * Based on the available support the source can enable
 * color conversion by writing into PROTOCOL_COVERTER_CONTROL_2
 * DPCD 3052h.
 */
# define DP_DS_HDMI_BT601_RGB_YCBCR_CONV    (1 << 5)
# define DP_DS_HDMI_BT709_RGB_YCBCR_CONV    (1 << 6)
# define DP_DS_HDMI_BT2020_RGB_YCBCR_CONV   (1 << 7)

#define DP_MAX_DOWNSTREAM_PORTS		    0x10

/* DP Forward error Correction Registers */
#define DP_FEC_CAPABILITY		    0x090    /* 1.4 */
# define DP_FEC_CAPABLE			    (1 << 0)
# define DP_FEC_UNCORR_BLK_ERROR_COUNT_CAP  (1 << 1)
# define DP_FEC_CORR_BLK_ERROR_COUNT_CAP    (1 << 2)
# define DP_FEC_BIT_ERROR_COUNT_CAP	    (1 << 3)

/* DP-HDMI2.1 PCON DSC ENCODER SUPPORT */
#define DP_PCON_DSC_ENCODER_CAP_SIZE        0xC	/* 0x9E - 0x92 */
#define DP_PCON_DSC_ENCODER                 0x092
# define DP_PCON_DSC_ENCODER_SUPPORTED      (1 << 0)
# define DP_PCON_DSC_PPS_ENC_OVERRIDE       (1 << 1)

/* DP-HDMI2.1 PCON DSC Version */
#define DP_PCON_DSC_VERSION                 0x093
# define DP_PCON_DSC_MAJOR_MASK		    (0xF << 0)
# define DP_PCON_DSC_MINOR_MASK		    (0xF << 4)
# define DP_PCON_DSC_MAJOR_SHIFT	    0
# define DP_PCON_DSC_MINOR_SHIFT	    4

/* DP-HDMI2.1 PCON DSC RC Buffer block size */
#define DP_PCON_DSC_RC_BUF_BLK_INFO	    0x094
# define DP_PCON_DSC_RC_BUF_BLK_SIZE	    (0x3 << 0)
# define DP_PCON_DSC_RC_BUF_BLK_1KB	    0
# define DP_PCON_DSC_RC_BUF_BLK_4KB	    1
# define DP_PCON_DSC_RC_BUF_BLK_16KB	    2
# define DP_PCON_DSC_RC_BUF_BLK_64KB	    3

/* DP-HDMI2.1 PCON DSC RC Buffer size */
#define DP_PCON_DSC_RC_BUF_SIZE		    0x095

/* DP-HDMI2.1 PCON DSC Slice capabilities-1 */
#define DP_PCON_DSC_SLICE_CAP_1		    0x096
# define DP_PCON_DSC_1_PER_DSC_ENC     (0x1 << 0)
# define DP_PCON_DSC_2_PER_DSC_ENC     (0x1 << 1)
# define DP_PCON_DSC_4_PER_DSC_ENC     (0x1 << 3)
# define DP_PCON_DSC_6_PER_DSC_ENC     (0x1 << 4)
# define DP_PCON_DSC_8_PER_DSC_ENC     (0x1 << 5)
# define DP_PCON_DSC_10_PER_DSC_ENC    (0x1 << 6)
# define DP_PCON_DSC_12_PER_DSC_ENC    (0x1 << 7)

#define DP_PCON_DSC_BUF_BIT_DEPTH	    0x097
# define DP_PCON_DSC_BIT_DEPTH_MASK	    (0xF << 0)
# define DP_PCON_DSC_DEPTH_9_BITS	    0
# define DP_PCON_DSC_DEPTH_10_BITS	    1
# define DP_PCON_DSC_DEPTH_11_BITS	    2
# define DP_PCON_DSC_DEPTH_12_BITS	    3
# define DP_PCON_DSC_DEPTH_13_BITS	    4
# define DP_PCON_DSC_DEPTH_14_BITS	    5
# define DP_PCON_DSC_DEPTH_15_BITS	    6
# define DP_PCON_DSC_DEPTH_16_BITS	    7
# define DP_PCON_DSC_DEPTH_8_BITS	    8

#define DP_PCON_DSC_BLOCK_PREDICTION	    0x098
# define DP_PCON_DSC_BLOCK_PRED_SUPPORT	    (0x1 << 0)

#define DP_PCON_DSC_ENC_COLOR_FMT_CAP	    0x099
# define DP_PCON_DSC_ENC_RGB		    (0x1 << 0)
# define DP_PCON_DSC_ENC_YUV444		    (0x1 << 1)
# define DP_PCON_DSC_ENC_YUV422_S	    (0x1 << 2)
# define DP_PCON_DSC_ENC_YUV422_N	    (0x1 << 3)
# define DP_PCON_DSC_ENC_YUV420_N	    (0x1 << 4)

#define DP_PCON_DSC_ENC_COLOR_DEPTH_CAP	    0x09A
# define DP_PCON_DSC_ENC_8BPC		    (0x1 << 1)
# define DP_PCON_DSC_ENC_10BPC		    (0x1 << 2)
# define DP_PCON_DSC_ENC_12BPC		    (0x1 << 3)

#define DP_PCON_DSC_MAX_SLICE_WIDTH	    0x09B

/* DP-HDMI2.1 PCON DSC Slice capabilities-2 */
#define DP_PCON_DSC_SLICE_CAP_2             0x09C
# define DP_PCON_DSC_16_PER_DSC_ENC	    (0x1 << 0)
# define DP_PCON_DSC_20_PER_DSC_ENC         (0x1 << 1)
# define DP_PCON_DSC_24_PER_DSC_ENC         (0x1 << 2)

/* DP-HDMI2.1 PCON HDMI TX Encoder Bits/pixel increment */
#define DP_PCON_DSC_BPP_INCR		    0x09E
# define DP_PCON_DSC_BPP_INCR_MASK	    (0x7 << 0)
# define DP_PCON_DSC_ONE_16TH_BPP	    0
# define DP_PCON_DSC_ONE_8TH_BPP	    1
# define DP_PCON_DSC_ONE_4TH_BPP	    2
# define DP_PCON_DSC_ONE_HALF_BPP	    3
# define DP_PCON_DSC_ONE_BPP		    4

/* DP Extended DSC Capabilities */
#define DP_DSC_BRANCH_OVERALL_THROUGHPUT_0  0x0a0   /* DP 1.4a SCR */
#define DP_DSC_BRANCH_OVERALL_THROUGHPUT_1  0x0a1
#define DP_DSC_BRANCH_MAX_LINE_WIDTH        0x0a2

/* Link Configuration */
#define	DP_LINK_BW_SET		            0x100
# define DP_LINK_RATE_TABLE		    0x00    /* eDP 1.4 */
# define DP_LINK_BW_1_62		    0x06
# define DP_LINK_BW_2_7			    0x0a
# define DP_LINK_BW_5_4			    0x14    /* 1.2 */
# define DP_LINK_BW_8_1			    0x1e    /* 1.4 */
# define DP_LINK_BW_10                      0x01    /* 2.0 128b/132b Link Layer */
# define DP_LINK_BW_13_5                    0x04    /* 2.0 128b/132b Link Layer */
# define DP_LINK_BW_20                      0x02    /* 2.0 128b/132b Link Layer */

#define DP_LANE_COUNT_SET	            0x101
# define DP_LANE_COUNT_MASK		    0x0f
# define DP_LANE_COUNT_ENHANCED_FRAME_EN    (1 << 7)

#define DP_TRAINING_PATTERN_SET	            0x102
# define DP_TRAINING_PATTERN_DISABLE	    0
# define DP_TRAINING_PATTERN_1		    1
# define DP_TRAINING_PATTERN_2		    2
# define DP_TRAINING_PATTERN_3		    3	    /* 1.2 */
# define DP_TRAINING_PATTERN_4              7       /* 1.4 */
# define DP_TRAINING_PATTERN_MASK	    0x3
# define DP_TRAINING_PATTERN_MASK_1_4	    0xf

/* DPCD 1.1 only. For DPCD >= 1.2 see per-lane DP_LINK_QUAL_LANEn_SET */
# define DP_LINK_QUAL_PATTERN_11_DISABLE    (0 << 2)
# define DP_LINK_QUAL_PATTERN_11_D10_2	    (1 << 2)
# define DP_LINK_QUAL_PATTERN_11_ERROR_RATE (2 << 2)
# define DP_LINK_QUAL_PATTERN_11_PRBS7	    (3 << 2)
# define DP_LINK_QUAL_PATTERN_11_MASK	    (3 << 2)

# define DP_RECOVERED_CLOCK_OUT_EN	    (1 << 4)
# define DP_LINK_SCRAMBLING_DISABLE	    (1 << 5)

# define DP_SYMBOL_ERROR_COUNT_BOTH	    (0 << 6)
# define DP_SYMBOL_ERROR_COUNT_DISPARITY    (1 << 6)
# define DP_SYMBOL_ERROR_COUNT_SYMBOL	    (2 << 6)
# define DP_SYMBOL_ERROR_COUNT_MASK	    (3 << 6)

#define DP_TRAINING_LANE0_SET		    0x103
#define DP_TRAINING_LANE1_SET		    0x104
#define DP_TRAINING_LANE2_SET		    0x105
#define DP_TRAINING_LANE3_SET		    0x106

# define DP_TRAIN_VOLTAGE_SWING_MASK	    0x3
# define DP_TRAIN_VOLTAGE_SWING_SHIFT	    0
# define DP_TRAIN_MAX_SWING_REACHED	    (1 << 2)
# define DP_TRAIN_VOLTAGE_SWING_LEVEL_0 (0 << 0)
# define DP_TRAIN_VOLTAGE_SWING_LEVEL_1 (1 << 0)
# define DP_TRAIN_VOLTAGE_SWING_LEVEL_2 (2 << 0)
# define DP_TRAIN_VOLTAGE_SWING_LEVEL_3 (3 << 0)

# define DP_TRAIN_PRE_EMPHASIS_MASK	    (3 << 3)
# define DP_TRAIN_PRE_EMPH_LEVEL_0		(0 << 3)
# define DP_TRAIN_PRE_EMPH_LEVEL_1		(1 << 3)
# define DP_TRAIN_PRE_EMPH_LEVEL_2		(2 << 3)
# define DP_TRAIN_PRE_EMPH_LEVEL_3		(3 << 3)

# define DP_TRAIN_PRE_EMPHASIS_SHIFT	    3
# define DP_TRAIN_MAX_PRE_EMPHASIS_REACHED  (1 << 5)

# define DP_TX_FFE_PRESET_VALUE_MASK        (0xf << 0) /* 2.0 128b/132b Link Layer */

#define DP_DOWNSPREAD_CTRL		    0x107
# define DP_SPREAD_AMP_0_5		    (1 << 4)
# define DP_MSA_TIMING_PAR_IGNORE_EN	    (1 << 7) /* eDP */

#define DP_MAIN_LINK_CHANNEL_CODING_SET	    0x108
# define DP_SET_ANSI_8B10B		    (1 << 0)
# define DP_SET_ANSI_128B132B               (1 << 1)

#define DP_I2C_SPEED_CONTROL_STATUS	    0x109   /* DPI */
/* bitmask as for DP_I2C_SPEED_CAP */

#define DP_EDP_CONFIGURATION_SET            0x10a   /* XXX 1.2? */
# define DP_ALTERNATE_SCRAMBLER_RESET_ENABLE (1 << 0)
# define DP_FRAMING_CHANGE_ENABLE	    (1 << 1)
# define DP_PANEL_SELF_TEST_ENABLE	    (1 << 7)

#define DP_LINK_QUAL_LANE0_SET		    0x10b   /* DPCD >= 1.2 */
#define DP_LINK_QUAL_LANE1_SET		    0x10c
#define DP_LINK_QUAL_LANE2_SET		    0x10d
#define DP_LINK_QUAL_LANE3_SET		    0x10e
# define DP_LINK_QUAL_PATTERN_DISABLE	    0
# define DP_LINK_QUAL_PATTERN_D10_2	    1
# define DP_LINK_QUAL_PATTERN_ERROR_RATE    2
# define DP_LINK_QUAL_PATTERN_PRBS7	    3
# define DP_LINK_QUAL_PATTERN_80BIT_CUSTOM  4
# define DP_LINK_QUAL_PATTERN_CP2520_PAT_1  5
# define DP_LINK_QUAL_PATTERN_CP2520_PAT_2  6
# define DP_LINK_QUAL_PATTERN_CP2520_PAT_3  7
/* DP 2.0 UHBR10, UHBR13.5, UHBR20 */
# define DP_LINK_QUAL_PATTERN_128B132B_TPS1 0x08
# define DP_LINK_QUAL_PATTERN_128B132B_TPS2 0x10
# define DP_LINK_QUAL_PATTERN_PRSBS9        0x18
# define DP_LINK_QUAL_PATTERN_PRSBS11       0x20
# define DP_LINK_QUAL_PATTERN_PRSBS15       0x28
# define DP_LINK_QUAL_PATTERN_PRSBS23       0x30
# define DP_LINK_QUAL_PATTERN_PRSBS31       0x38
# define DP_LINK_QUAL_PATTERN_CUSTOM        0x40
# define DP_LINK_QUAL_PATTERN_SQUARE        0x48

#define DP_TRAINING_LANE0_1_SET2	    0x10f
#define DP_TRAINING_LANE2_3_SET2	    0x110
# define DP_LANE02_POST_CURSOR2_SET_MASK    (3 << 0)
# define DP_LANE02_MAX_POST_CURSOR2_REACHED (1 << 2)
# define DP_LANE13_POST_CURSOR2_SET_MASK    (3 << 4)
# define DP_LANE13_MAX_POST_CURSOR2_REACHED (1 << 6)

#define DP_MSTM_CTRL			    0x111   /* 1.2 */
# define DP_MST_EN			    (1 << 0)
# define DP_UP_REQ_EN			    (1 << 1)
# define DP_UPSTREAM_IS_SRC		    (1 << 2)

#define DP_AUDIO_DELAY0			    0x112   /* 1.2 */
#define DP_AUDIO_DELAY1			    0x113
#define DP_AUDIO_DELAY2			    0x114

#define DP_LINK_RATE_SET		    0x115   /* eDP 1.4 */
# define DP_LINK_RATE_SET_SHIFT		    0
# define DP_LINK_RATE_SET_MASK		    (7 << 0)

#define DP_RECEIVER_ALPM_CONFIG		    0x116   /* eDP 1.4 */
# define DP_ALPM_ENABLE			    (1 << 0)
# define DP_ALPM_LOCK_ERROR_IRQ_HPD_ENABLE  (1 << 1)

#define DP_SINK_DEVICE_AUX_FRAME_SYNC_CONF  0x117   /* eDP 1.4 */
# define DP_AUX_FRAME_SYNC_ENABLE	    (1 << 0)
# define DP_IRQ_HPD_ENABLE		    (1 << 1)

#define DP_UPSTREAM_DEVICE_DP_PWR_NEED	    0x118   /* 1.2 */
# define DP_PWR_NOT_NEEDED		    (1 << 0)

#define DP_FEC_CONFIGURATION		    0x120    /* 1.4 */
# define DP_FEC_READY			    (1 << 0)
# define DP_FEC_ERR_COUNT_SEL_MASK	    (7 << 1)
# define DP_FEC_ERR_COUNT_DIS		    (0 << 1)
# define DP_FEC_UNCORR_BLK_ERROR_COUNT	    (1 << 1)
# define DP_FEC_CORR_BLK_ERROR_COUNT	    (2 << 1)
# define DP_FEC_BIT_ERROR_COUNT		    (3 << 1)
# define DP_FEC_LANE_SELECT_MASK	    (3 << 4)
# define DP_FEC_LANE_0_SELECT		    (0 << 4)
# define DP_FEC_LANE_1_SELECT		    (1 << 4)
# define DP_FEC_LANE_2_SELECT		    (2 << 4)
# define DP_FEC_LANE_3_SELECT		    (3 << 4)

#define DP_AUX_FRAME_SYNC_VALUE		    0x15c   /* eDP 1.4 */
# define DP_AUX_FRAME_SYNC_VALID	    (1 << 0)

#define DP_DSC_ENABLE                       0x160   /* DP 1.4 */
# define DP_DECOMPRESSION_EN                (1 << 0)

#define DP_PSR_EN_CFG			    0x170   /* XXX 1.2? */
# define DP_PSR_ENABLE			    (1 << 0)
# define DP_PSR_MAIN_LINK_ACTIVE	    (1 << 1)
# define DP_PSR_CRC_VERIFICATION	    (1 << 2)
# define DP_PSR_FRAME_CAPTURE		    (1 << 3)
# define DP_PSR_SELECTIVE_UPDATE	    (1 << 4)
# define DP_PSR_IRQ_HPD_WITH_CRC_ERRORS     (1 << 5)
# define DP_PSR_ENABLE_PSR2		    (1 << 6) /* eDP 1.4a */

#define DP_ADAPTER_CTRL			    0x1a0
# define DP_ADAPTER_CTRL_FORCE_LOAD_SENSE   (1 << 0)

#define DP_BRANCH_DEVICE_CTRL		    0x1a1
# define DP_BRANCH_DEVICE_IRQ_HPD	    (1 << 0)

#define DP_PAYLOAD_ALLOCATE_SET		    0x1c0
#define DP_PAYLOAD_ALLOCATE_START_TIME_SLOT 0x1c1
#define DP_PAYLOAD_ALLOCATE_TIME_SLOT_COUNT 0x1c2

/* Link/Sink Device Status */
#define DP_SINK_COUNT			    0x200
/* prior to 1.2 bit 7 was reserved mbz */
# define DP_GET_SINK_COUNT(x)		    ((((x) & 0x80) >> 1) | ((x) & 0x3f))
# define DP_SINK_CP_READY		    (1 << 6)

#define DP_DEVICE_SERVICE_IRQ_VECTOR	    0x201
# define DP_REMOTE_CONTROL_COMMAND_PENDING  (1 << 0)
# define DP_AUTOMATED_TEST_REQUEST	    (1 << 1)
# define DP_CP_IRQ			    (1 << 2)
# define DP_MCCS_IRQ			    (1 << 3)
# define DP_DOWN_REP_MSG_RDY		    (1 << 4) /* 1.2 MST */
# define DP_UP_REQ_MSG_RDY		    (1 << 5) /* 1.2 MST */
# define DP_SINK_SPECIFIC_IRQ		    (1 << 6)

#define DP_LANE0_1_STATUS		    0x202
#define DP_LANE2_3_STATUS		    0x203
# define DP_LANE_CR_DONE		    (1 << 0)
# define DP_LANE_CHANNEL_EQ_DONE	    (1 << 1)
# define DP_LANE_SYMBOL_LOCKED		    (1 << 2)

#define DP_CHANNEL_EQ_BITS (DP_LANE_CR_DONE |		\
			    DP_LANE_CHANNEL_EQ_DONE |	\
			    DP_LANE_SYMBOL_LOCKED)

#define DP_LANE_ALIGN_STATUS_UPDATED	    0x204

#define DP_INTERLANE_ALIGN_DONE		    (1 << 0)
#define DP_DOWNSTREAM_PORT_STATUS_CHANGED   (1 << 6)
#define DP_LINK_STATUS_UPDATED		    (1 << 7)

#define DP_SINK_STATUS			    0x205
# define DP_RECEIVE_PORT_0_STATUS	    (1 << 0)
# define DP_RECEIVE_PORT_1_STATUS	    (1 << 1)
# define DP_STREAM_REGENERATION_STATUS      (1 << 2) /* 2.0 */

#define DP_ADJUST_REQUEST_LANE0_1	    0x206
#define DP_ADJUST_REQUEST_LANE2_3	    0x207
# define DP_ADJUST_VOLTAGE_SWING_LANE0_MASK  0x03
# define DP_ADJUST_VOLTAGE_SWING_LANE0_SHIFT 0
# define DP_ADJUST_PRE_EMPHASIS_LANE0_MASK   0x0c
# define DP_ADJUST_PRE_EMPHASIS_LANE0_SHIFT  2
# define DP_ADJUST_VOLTAGE_SWING_LANE1_MASK  0x30
# define DP_ADJUST_VOLTAGE_SWING_LANE1_SHIFT 4
# define DP_ADJUST_PRE_EMPHASIS_LANE1_MASK   0xc0
# define DP_ADJUST_PRE_EMPHASIS_LANE1_SHIFT  6

/* DP 2.0 128b/132b Link Layer */
# define DP_ADJUST_TX_FFE_PRESET_LANE0_MASK  (0xf << 0)
# define DP_ADJUST_TX_FFE_PRESET_LANE0_SHIFT 0
# define DP_ADJUST_TX_FFE_PRESET_LANE1_MASK  (0xf << 4)
# define DP_ADJUST_TX_FFE_PRESET_LANE1_SHIFT 4

#define DP_ADJUST_REQUEST_POST_CURSOR2      0x20c
# define DP_ADJUST_POST_CURSOR2_LANE0_MASK  0x03
# define DP_ADJUST_POST_CURSOR2_LANE0_SHIFT 0
# define DP_ADJUST_POST_CURSOR2_LANE1_MASK  0x0c
# define DP_ADJUST_POST_CURSOR2_LANE1_SHIFT 2
# define DP_ADJUST_POST_CURSOR2_LANE2_MASK  0x30
# define DP_ADJUST_POST_CURSOR2_LANE2_SHIFT 4
# define DP_ADJUST_POST_CURSOR2_LANE3_MASK  0xc0
# define DP_ADJUST_POST_CURSOR2_LANE3_SHIFT 6

#define DP_TEST_REQUEST			    0x218
# define DP_TEST_LINK_TRAINING		    (1 << 0)
# define DP_TEST_LINK_VIDEO_PATTERN	    (1 << 1)
# define DP_TEST_LINK_EDID_READ		    (1 << 2)
# define DP_TEST_LINK_PHY_TEST_PATTERN	    (1 << 3) /* DPCD >= 1.1 */
# define DP_TEST_LINK_FAUX_PATTERN	    (1 << 4) /* DPCD >= 1.2 */
# define DP_TEST_LINK_AUDIO_PATTERN         (1 << 5) /* DPCD >= 1.2 */
# define DP_TEST_LINK_AUDIO_DISABLED_VIDEO  (1 << 6) /* DPCD >= 1.2 */

#define DP_TEST_LINK_RATE		    0x219
# define DP_LINK_RATE_162		    (0x6)
# define DP_LINK_RATE_27		    (0xa)

#define DP_TEST_LANE_COUNT		    0x220

#define DP_TEST_PATTERN			    0x221
# define DP_NO_TEST_PATTERN                 0x0
# define DP_COLOR_RAMP                      0x1
# define DP_BLACK_AND_WHITE_VERTICAL_LINES  0x2
# define DP_COLOR_SQUARE                    0x3

#define DP_TEST_H_TOTAL_HI                  0x222
#define DP_TEST_H_TOTAL_LO                  0x223

#define DP_TEST_V_TOTAL_HI                  0x224
#define DP_TEST_V_TOTAL_LO                  0x225

#define DP_TEST_H_START_HI                  0x226
#define DP_TEST_H_START_LO                  0x227

#define DP_TEST_V_START_HI                  0x228
#define DP_TEST_V_START_LO                  0x229

#define DP_TEST_HSYNC_HI                    0x22A
# define DP_TEST_HSYNC_POLARITY             (1 << 7)
# define DP_TEST_HSYNC_WIDTH_HI_MASK        (127 << 0)
#define DP_TEST_HSYNC_WIDTH_LO              0x22B

#define DP_TEST_VSYNC_HI                    0x22C
# define DP_TEST_VSYNC_POLARITY             (1 << 7)
# define DP_TEST_VSYNC_WIDTH_HI_MASK        (127 << 0)
#define DP_TEST_VSYNC_WIDTH_LO              0x22D

#define DP_TEST_H_WIDTH_HI                  0x22E
#define DP_TEST_H_WIDTH_LO                  0x22F

#define DP_TEST_V_HEIGHT_HI                 0x230
#define DP_TEST_V_HEIGHT_LO                 0x231

#define DP_TEST_MISC0                       0x232
# define DP_TEST_SYNC_CLOCK                 (1 << 0)
# define DP_TEST_COLOR_FORMAT_MASK          (3 << 1)
# define DP_TEST_COLOR_FORMAT_SHIFT         1
# define DP_COLOR_FORMAT_RGB                (0 << 1)
# define DP_COLOR_FORMAT_YCbCr422           (1 << 1)
# define DP_COLOR_FORMAT_YCbCr444           (2 << 1)
# define DP_TEST_DYNAMIC_RANGE_VESA         (0 << 3)
# define DP_TEST_DYNAMIC_RANGE_CEA          (1 << 3)
# define DP_TEST_YCBCR_COEFFICIENTS         (1 << 4)
# define DP_YCBCR_COEFFICIENTS_ITU601       (0 << 4)
# define DP_YCBCR_COEFFICIENTS_ITU709       (1 << 4)
# define DP_TEST_BIT_DEPTH_MASK             (7 << 5)
# define DP_TEST_BIT_DEPTH_SHIFT            5
# define DP_TEST_BIT_DEPTH_6                (0 << 5)
# define DP_TEST_BIT_DEPTH_8                (1 << 5)
# define DP_TEST_BIT_DEPTH_10               (2 << 5)
# define DP_TEST_BIT_DEPTH_12               (3 << 5)
# define DP_TEST_BIT_DEPTH_16               (4 << 5)

#define DP_TEST_MISC1                       0x233
# define DP_TEST_REFRESH_DENOMINATOR        (1 << 0)
# define DP_TEST_INTERLACED                 (1 << 1)

#define DP_TEST_REFRESH_RATE_NUMERATOR      0x234

#define DP_TEST_MISC0                       0x232

#define DP_TEST_CRC_R_CR		    0x240
#define DP_TEST_CRC_G_Y			    0x242
#define DP_TEST_CRC_B_CB		    0x244

#define DP_TEST_SINK_MISC		    0x246
# define DP_TEST_CRC_SUPPORTED		    (1 << 5)
# define DP_TEST_COUNT_MASK		    0xf

#define DP_PHY_TEST_PATTERN                 0x248
# define DP_PHY_TEST_PATTERN_SEL_MASK       0x7
# define DP_PHY_TEST_PATTERN_NONE           0x0
# define DP_PHY_TEST_PATTERN_D10_2          0x1
# define DP_PHY_TEST_PATTERN_ERROR_COUNT    0x2
# define DP_PHY_TEST_PATTERN_PRBS7          0x3
# define DP_PHY_TEST_PATTERN_80BIT_CUSTOM   0x4
# define DP_PHY_TEST_PATTERN_CP2520         0x5

#define DP_TEST_HBR2_SCRAMBLER_RESET        0x24A
#define DP_TEST_80BIT_CUSTOM_PATTERN_7_0    0x250
#define	DP_TEST_80BIT_CUSTOM_PATTERN_15_8   0x251
#define	DP_TEST_80BIT_CUSTOM_PATTERN_23_16  0x252
#define	DP_TEST_80BIT_CUSTOM_PATTERN_31_24  0x253
#define	DP_TEST_80BIT_CUSTOM_PATTERN_39_32  0x254
#define	DP_TEST_80BIT_CUSTOM_PATTERN_47_40  0x255
#define	DP_TEST_80BIT_CUSTOM_PATTERN_55_48  0x256
#define	DP_TEST_80BIT_CUSTOM_PATTERN_63_56  0x257
#define	DP_TEST_80BIT_CUSTOM_PATTERN_71_64  0x258
#define	DP_TEST_80BIT_CUSTOM_PATTERN_79_72  0x259

#define DP_TEST_RESPONSE		    0x260
# define DP_TEST_ACK			    (1 << 0)
# define DP_TEST_NAK			    (1 << 1)
# define DP_TEST_EDID_CHECKSUM_WRITE	    (1 << 2)

#define DP_TEST_EDID_CHECKSUM		    0x261

#define DP_TEST_SINK			    0x270
# define DP_TEST_SINK_START		    (1 << 0)
#define DP_TEST_AUDIO_MODE		    0x271
#define DP_TEST_AUDIO_PATTERN_TYPE	    0x272
#define DP_TEST_AUDIO_PERIOD_CH1	    0x273
#define DP_TEST_AUDIO_PERIOD_CH2	    0x274
#define DP_TEST_AUDIO_PERIOD_CH3	    0x275
#define DP_TEST_AUDIO_PERIOD_CH4	    0x276
#define DP_TEST_AUDIO_PERIOD_CH5	    0x277
#define DP_TEST_AUDIO_PERIOD_CH6	    0x278
#define DP_TEST_AUDIO_PERIOD_CH7	    0x279
#define DP_TEST_AUDIO_PERIOD_CH8	    0x27A

#define DP_FEC_STATUS			    0x280    /* 1.4 */
# define DP_FEC_DECODE_EN_DETECTED	    (1 << 0)
# define DP_FEC_DECODE_DIS_DETECTED	    (1 << 1)

#define DP_FEC_ERROR_COUNT_LSB		    0x0281    /* 1.4 */

#define DP_FEC_ERROR_COUNT_MSB		    0x0282    /* 1.4 */
# define DP_FEC_ERROR_COUNT_MASK	    0x7F
# define DP_FEC_ERR_COUNT_VALID		    (1 << 7)

#define DP_PAYLOAD_TABLE_UPDATE_STATUS      0x2c0   /* 1.2 MST */
# define DP_PAYLOAD_TABLE_UPDATED           (1 << 0)
# define DP_PAYLOAD_ACT_HANDLED             (1 << 1)

#define DP_VC_PAYLOAD_ID_SLOT_1             0x2c1   /* 1.2 MST */
/* up to ID_SLOT_63 at 0x2ff */

/* Source Device-specific */
#define DP_SOURCE_OUI			    0x300

/* Sink Device-specific */
#define DP_SINK_OUI			    0x400

/* Branch Device-specific */
#define DP_BRANCH_OUI			    0x500
#define DP_BRANCH_ID                        0x503
#define DP_BRANCH_REVISION_START            0x509
#define DP_BRANCH_HW_REV                    0x509
#define DP_BRANCH_SW_REV                    0x50A

/* Link/Sink Device Power Control */
#define DP_SET_POWER                        0x600
# define DP_SET_POWER_D0                    0x1
# define DP_SET_POWER_D3                    0x2
# define DP_SET_POWER_MASK                  0x3
# define DP_SET_POWER_D3_AUX_ON             0x5

/* eDP-specific */
#define DP_EDP_DPCD_REV			    0x700    /* eDP 1.2 */
# define DP_EDP_11			    0x00
# define DP_EDP_12			    0x01
# define DP_EDP_13			    0x02
# define DP_EDP_14			    0x03
# define DP_EDP_14a                         0x04    /* eDP 1.4a */
# define DP_EDP_14b                         0x05    /* eDP 1.4b */

#define DP_EDP_GENERAL_CAP_1		    0x701
# define DP_EDP_TCON_BACKLIGHT_ADJUSTMENT_CAP		(1 << 0)
# define DP_EDP_BACKLIGHT_PIN_ENABLE_CAP		(1 << 1)
# define DP_EDP_BACKLIGHT_AUX_ENABLE_CAP		(1 << 2)
# define DP_EDP_PANEL_SELF_TEST_PIN_ENABLE_CAP		(1 << 3)
# define DP_EDP_PANEL_SELF_TEST_AUX_ENABLE_CAP		(1 << 4)
# define DP_EDP_FRC_ENABLE_CAP				(1 << 5)
# define DP_EDP_COLOR_ENGINE_CAP			(1 << 6)
# define DP_EDP_SET_POWER_CAP				(1 << 7)

#define DP_EDP_BACKLIGHT_ADJUSTMENT_CAP     0x702
# define DP_EDP_BACKLIGHT_BRIGHTNESS_PWM_PIN_CAP	(1 << 0)
# define DP_EDP_BACKLIGHT_BRIGHTNESS_AUX_SET_CAP	(1 << 1)
# define DP_EDP_BACKLIGHT_BRIGHTNESS_BYTE_COUNT		(1 << 2)
# define DP_EDP_BACKLIGHT_AUX_PWM_PRODUCT_CAP		(1 << 3)
# define DP_EDP_BACKLIGHT_FREQ_PWM_PIN_PASSTHRU_CAP	(1 << 4)
# define DP_EDP_BACKLIGHT_FREQ_AUX_SET_CAP		(1 << 5)
# define DP_EDP_DYNAMIC_BACKLIGHT_CAP			(1 << 6)
# define DP_EDP_VBLANK_BACKLIGHT_UPDATE_CAP		(1 << 7)

#define DP_EDP_GENERAL_CAP_2		    0x703
# define DP_EDP_OVERDRIVE_ENGINE_ENABLED		(1 << 0)

#define DP_EDP_GENERAL_CAP_3		    0x704    /* eDP 1.4 */
# define DP_EDP_X_REGION_CAP_MASK			(0xf << 0)
# define DP_EDP_X_REGION_CAP_SHIFT			0
# define DP_EDP_Y_REGION_CAP_MASK			(0xf << 4)
# define DP_EDP_Y_REGION_CAP_SHIFT			4

#define DP_EDP_DISPLAY_CONTROL_REGISTER     0x720
# define DP_EDP_BACKLIGHT_ENABLE			(1 << 0)
# define DP_EDP_BLACK_VIDEO_ENABLE			(1 << 1)
# define DP_EDP_FRC_ENABLE				(1 << 2)
# define DP_EDP_COLOR_ENGINE_ENABLE			(1 << 3)
# define DP_EDP_VBLANK_BACKLIGHT_UPDATE_ENABLE		(1 << 7)

#define DP_EDP_BACKLIGHT_MODE_SET_REGISTER  0x721
# define DP_EDP_BACKLIGHT_CONTROL_MODE_MASK		(3 << 0)
# define DP_EDP_BACKLIGHT_CONTROL_MODE_PWM		(0 << 0)
# define DP_EDP_BACKLIGHT_CONTROL_MODE_PRESET		(1 << 0)
# define DP_EDP_BACKLIGHT_CONTROL_MODE_DPCD		(2 << 0)
# define DP_EDP_BACKLIGHT_CONTROL_MODE_PRODUCT		(3 << 0)
# define DP_EDP_BACKLIGHT_FREQ_PWM_PIN_PASSTHRU_ENABLE	(1 << 2)
# define DP_EDP_BACKLIGHT_FREQ_AUX_SET_ENABLE		(1 << 3)
# define DP_EDP_DYNAMIC_BACKLIGHT_ENABLE		(1 << 4)
# define DP_EDP_REGIONAL_BACKLIGHT_ENABLE		(1 << 5)
# define DP_EDP_UPDATE_REGION_BRIGHTNESS		(1 << 6) /* eDP 1.4 */

#define DP_EDP_BACKLIGHT_BRIGHTNESS_MSB     0x722
#define DP_EDP_BACKLIGHT_BRIGHTNESS_LSB     0x723

#define DP_EDP_PWMGEN_BIT_COUNT             0x724
#define DP_EDP_PWMGEN_BIT_COUNT_CAP_MIN     0x725
#define DP_EDP_PWMGEN_BIT_COUNT_CAP_MAX     0x726
# define DP_EDP_PWMGEN_BIT_COUNT_MASK       (0x1f << 0)

#define DP_EDP_BACKLIGHT_CONTROL_STATUS     0x727

#define DP_EDP_BACKLIGHT_FREQ_SET           0x728
# define DP_EDP_BACKLIGHT_FREQ_BASE_KHZ     27000

#define DP_EDP_BACKLIGHT_FREQ_CAP_MIN_MSB   0x72a
#define DP_EDP_BACKLIGHT_FREQ_CAP_MIN_MID   0x72b
#define DP_EDP_BACKLIGHT_FREQ_CAP_MIN_LSB   0x72c

#define DP_EDP_BACKLIGHT_FREQ_CAP_MAX_MSB   0x72d
#define DP_EDP_BACKLIGHT_FREQ_CAP_MAX_MID   0x72e
#define DP_EDP_BACKLIGHT_FREQ_CAP_MAX_LSB   0x72f

#define DP_EDP_DBC_MINIMUM_BRIGHTNESS_SET   0x732
#define DP_EDP_DBC_MAXIMUM_BRIGHTNESS_SET   0x733

#define DP_EDP_REGIONAL_BACKLIGHT_BASE      0x740    /* eDP 1.4 */
#define DP_EDP_REGIONAL_BACKLIGHT_0	    0x741    /* eDP 1.4 */

/* Sideband MSG Buffers */
#define DP_SIDEBAND_MSG_DOWN_REQ_BASE	    0x1000   /* 1.2 MST */
#define DP_SIDEBAND_MSG_UP_REP_BASE	    0x1200   /* 1.2 MST */
#define DP_SIDEBAND_MSG_DOWN_REP_BASE	    0x1400   /* 1.2 MST */
#define DP_SIDEBAND_MSG_UP_REQ_BASE	    0x1600   /* 1.2 MST */

/* DPRX Event Status Indicator */
#define DP_SINK_COUNT_ESI		    0x2002   /* 1.2 */
/* 0-5 sink count */
# define DP_SINK_COUNT_CP_READY             (1 << 6)

#define DP_DEVICE_SERVICE_IRQ_VECTOR_ESI0   0x2003   /* 1.2 */

#define DP_DEVICE_SERVICE_IRQ_VECTOR_ESI1   0x2004   /* 1.2 */
# define DP_RX_GTC_MSTR_REQ_STATUS_CHANGE    (1 << 0)
# define DP_LOCK_ACQUISITION_REQUEST         (1 << 1)
# define DP_CEC_IRQ                          (1 << 2)

#define DP_LINK_SERVICE_IRQ_VECTOR_ESI0     0x2005   /* 1.2 */
# define RX_CAP_CHANGED                      (1 << 0)
# define LINK_STATUS_CHANGED                 (1 << 1)
# define STREAM_STATUS_CHANGED               (1 << 2)
# define HDMI_LINK_STATUS_CHANGED            (1 << 3)
# define CONNECTED_OFF_ENTRY_REQUESTED       (1 << 4)

#define DP_PSR_ERROR_STATUS                 0x2006  /* XXX 1.2? */
# define DP_PSR_LINK_CRC_ERROR              (1 << 0)
# define DP_PSR_RFB_STORAGE_ERROR           (1 << 1)
# define DP_PSR_VSC_SDP_UNCORRECTABLE_ERROR (1 << 2) /* eDP 1.4 */

#define DP_PSR_ESI                          0x2007  /* XXX 1.2? */
# define DP_PSR_CAPS_CHANGE                 (1 << 0)

#define DP_PSR_STATUS                       0x2008  /* XXX 1.2? */
# define DP_PSR_SINK_INACTIVE               0
# define DP_PSR_SINK_ACTIVE_SRC_SYNCED      1
# define DP_PSR_SINK_ACTIVE_RFB             2
# define DP_PSR_SINK_ACTIVE_SINK_SYNCED     3
# define DP_PSR_SINK_ACTIVE_RESYNC          4
# define DP_PSR_SINK_INTERNAL_ERROR         7
# define DP_PSR_SINK_STATE_MASK             0x07

#define DP_SYNCHRONIZATION_LATENCY_IN_SINK		0x2009 /* edp 1.4 */
# define DP_MAX_RESYNC_FRAME_COUNT_MASK			(0xf << 0)
# define DP_MAX_RESYNC_FRAME_COUNT_SHIFT		0
# define DP_LAST_ACTUAL_SYNCHRONIZATION_LATENCY_MASK	(0xf << 4)
# define DP_LAST_ACTUAL_SYNCHRONIZATION_LATENCY_SHIFT	4

#define DP_LAST_RECEIVED_PSR_SDP	    0x200a /* eDP 1.2 */
# define DP_PSR_STATE_BIT		    (1 << 0) /* eDP 1.2 */
# define DP_UPDATE_RFB_BIT		    (1 << 1) /* eDP 1.2 */
# define DP_CRC_VALID_BIT		    (1 << 2) /* eDP 1.2 */
# define DP_SU_VALID			    (1 << 3) /* eDP 1.4 */
# define DP_FIRST_SCAN_LINE_SU_REGION	    (1 << 4) /* eDP 1.4 */
# define DP_LAST_SCAN_LINE_SU_REGION	    (1 << 5) /* eDP 1.4 */
# define DP_Y_COORDINATE_VALID		    (1 << 6) /* eDP 1.4a */

#define DP_RECEIVER_ALPM_STATUS		    0x200b  /* eDP 1.4 */
# define DP_ALPM_LOCK_TIMEOUT_ERROR	    (1 << 0)

#define DP_LANE0_1_STATUS_ESI                  0x200c /* status same as 0x202 */
#define DP_LANE2_3_STATUS_ESI                  0x200d /* status same as 0x203 */
#define DP_LANE_ALIGN_STATUS_UPDATED_ESI       0x200e /* status same as 0x204 */
#define DP_SINK_STATUS_ESI                     0x200f /* status same as 0x205 */

/* Extended Receiver Capability: See DP_DPCD_REV for definitions */
#define DP_DP13_DPCD_REV                    0x2200

#define DP_DPRX_FEATURE_ENUMERATION_LIST    0x2210  /* DP 1.3 */
# define DP_GTC_CAP					(1 << 0)  /* DP 1.3 */
# define DP_SST_SPLIT_SDP_CAP				(1 << 1)  /* DP 1.4 */
# define DP_AV_SYNC_CAP					(1 << 2)  /* DP 1.3 */
# define DP_VSC_SDP_EXT_FOR_COLORIMETRY_SUPPORTED	(1 << 3)  /* DP 1.3 */
# define DP_VSC_EXT_VESA_SDP_SUPPORTED			(1 << 4)  /* DP 1.4 */
# define DP_VSC_EXT_VESA_SDP_CHAINING_SUPPORTED		(1 << 5)  /* DP 1.4 */
# define DP_VSC_EXT_CEA_SDP_SUPPORTED			(1 << 6)  /* DP 1.4 */
# define DP_VSC_EXT_CEA_SDP_CHAINING_SUPPORTED		(1 << 7)  /* DP 1.4 */

#define DP_128B132B_SUPPORTED_LINK_RATES       0x2215 /* 2.0 */
# define DP_UHBR10                             (1 << 0)
# define DP_UHBR20                             (1 << 1)
# define DP_UHBR13_5                           (1 << 2)

#define DP_128B132B_TRAINING_AUX_RD_INTERVAL   0x2216 /* 2.0 */
# define DP_128B132B_TRAINING_AUX_RD_INTERVAL_MASK 0x7f

/* Protocol Converter Extension */
/* HDMI CEC tunneling over AUX DP 1.3 section 5.3.3.3.1 DPCD 1.4+ */
#define DP_CEC_TUNNELING_CAPABILITY            0x3000
# define DP_CEC_TUNNELING_CAPABLE               (1 << 0)
# define DP_CEC_SNOOPING_CAPABLE                (1 << 1)
# define DP_CEC_MULTIPLE_LA_CAPABLE             (1 << 2)

#define DP_CEC_TUNNELING_CONTROL               0x3001
# define DP_CEC_TUNNELING_ENABLE                (1 << 0)
# define DP_CEC_SNOOPING_ENABLE                 (1 << 1)

#define DP_CEC_RX_MESSAGE_INFO                 0x3002
# define DP_CEC_RX_MESSAGE_LEN_MASK             (0xf << 0)
# define DP_CEC_RX_MESSAGE_LEN_SHIFT            0
# define DP_CEC_RX_MESSAGE_HPD_STATE            (1 << 4)
# define DP_CEC_RX_MESSAGE_HPD_LOST             (1 << 5)
# define DP_CEC_RX_MESSAGE_ACKED                (1 << 6)
# define DP_CEC_RX_MESSAGE_ENDED                (1 << 7)

#define DP_CEC_TX_MESSAGE_INFO                 0x3003
# define DP_CEC_TX_MESSAGE_LEN_MASK             (0xf << 0)
# define DP_CEC_TX_MESSAGE_LEN_SHIFT            0
# define DP_CEC_TX_RETRY_COUNT_MASK             (0x7 << 4)
# define DP_CEC_TX_RETRY_COUNT_SHIFT            4
# define DP_CEC_TX_MESSAGE_SEND                 (1 << 7)

#define DP_CEC_TUNNELING_IRQ_FLAGS             0x3004
# define DP_CEC_RX_MESSAGE_INFO_VALID           (1 << 0)
# define DP_CEC_RX_MESSAGE_OVERFLOW             (1 << 1)
# define DP_CEC_TX_MESSAGE_SENT                 (1 << 4)
# define DP_CEC_TX_LINE_ERROR                   (1 << 5)
# define DP_CEC_TX_ADDRESS_NACK_ERROR           (1 << 6)
# define DP_CEC_TX_DATA_NACK_ERROR              (1 << 7)

#define DP_CEC_LOGICAL_ADDRESS_MASK            0x300E /* 0x300F word */
# define DP_CEC_LOGICAL_ADDRESS_0               (1 << 0)
# define DP_CEC_LOGICAL_ADDRESS_1               (1 << 1)
# define DP_CEC_LOGICAL_ADDRESS_2               (1 << 2)
# define DP_CEC_LOGICAL_ADDRESS_3               (1 << 3)
# define DP_CEC_LOGICAL_ADDRESS_4               (1 << 4)
# define DP_CEC_LOGICAL_ADDRESS_5               (1 << 5)
# define DP_CEC_LOGICAL_ADDRESS_6               (1 << 6)
# define DP_CEC_LOGICAL_ADDRESS_7               (1 << 7)
#define DP_CEC_LOGICAL_ADDRESS_MASK_2          0x300F /* 0x300E word */
# define DP_CEC_LOGICAL_ADDRESS_8               (1 << 0)
# define DP_CEC_LOGICAL_ADDRESS_9               (1 << 1)
# define DP_CEC_LOGICAL_ADDRESS_10              (1 << 2)
# define DP_CEC_LOGICAL_ADDRESS_11              (1 << 3)
# define DP_CEC_LOGICAL_ADDRESS_12              (1 << 4)
# define DP_CEC_LOGICAL_ADDRESS_13              (1 << 5)
# define DP_CEC_LOGICAL_ADDRESS_14              (1 << 6)
# define DP_CEC_LOGICAL_ADDRESS_15              (1 << 7)

#define DP_CEC_RX_MESSAGE_BUFFER               0x3010
#define DP_CEC_TX_MESSAGE_BUFFER               0x3020
#define DP_CEC_MESSAGE_BUFFER_LENGTH             0x10

/* PCON CONFIGURE-1 FRL FOR HDMI SINK */
#define DP_PCON_HDMI_LINK_CONFIG_1             0x305A
# define DP_PCON_ENABLE_MAX_FRL_BW             (7 << 0)
# define DP_PCON_ENABLE_MAX_BW_0GBPS	       0
# define DP_PCON_ENABLE_MAX_BW_9GBPS	       1
# define DP_PCON_ENABLE_MAX_BW_18GBPS	       2
# define DP_PCON_ENABLE_MAX_BW_24GBPS	       3
# define DP_PCON_ENABLE_MAX_BW_32GBPS	       4
# define DP_PCON_ENABLE_MAX_BW_40GBPS	       5
# define DP_PCON_ENABLE_MAX_BW_48GBPS	       6
# define DP_PCON_ENABLE_SOURCE_CTL_MODE       (1 << 3)
# define DP_PCON_ENABLE_CONCURRENT_LINK       (1 << 4)
# define DP_PCON_ENABLE_LINK_FRL_MODE         (1 << 5)
# define DP_PCON_ENABLE_HPD_READY	      (1 << 6)
# define DP_PCON_ENABLE_HDMI_LINK             (1 << 7)

/* PCON CONFIGURE-2 FRL FOR HDMI SINK */
#define DP_PCON_HDMI_LINK_CONFIG_2            0x305B
# define DP_PCON_MAX_LINK_BW_MASK             (0x3F << 0)
# define DP_PCON_FRL_BW_MASK_9GBPS            (1 << 0)
# define DP_PCON_FRL_BW_MASK_18GBPS           (1 << 1)
# define DP_PCON_FRL_BW_MASK_24GBPS           (1 << 2)
# define DP_PCON_FRL_BW_MASK_32GBPS           (1 << 3)
# define DP_PCON_FRL_BW_MASK_40GBPS           (1 << 4)
# define DP_PCON_FRL_BW_MASK_48GBPS           (1 << 5)
# define DP_PCON_FRL_LINK_TRAIN_EXTENDED      (1 << 6)

/* PCON HDMI LINK STATUS */
#define DP_PCON_HDMI_TX_LINK_STATUS           0x303B
# define DP_PCON_HDMI_TX_LINK_ACTIVE          (1 << 0)
# define DP_PCON_FRL_READY		      (1 << 1)

/* PCON HDMI POST FRL STATUS */
#define DP_PCON_HDMI_POST_FRL_STATUS          0x3036
# define DP_PCON_HDMI_LINK_MODE               (1 << 0)
# define DP_PCON_HDMI_MODE_TMDS               0
# define DP_PCON_HDMI_MODE_FRL                1
# define DP_PCON_HDMI_FRL_TRAINED_BW          (0x3F << 1)
# define DP_PCON_FRL_TRAINED_BW_9GBPS	      (1 << 1)
# define DP_PCON_FRL_TRAINED_BW_18GBPS	      (1 << 2)
# define DP_PCON_FRL_TRAINED_BW_24GBPS	      (1 << 3)
# define DP_PCON_FRL_TRAINED_BW_32GBPS	      (1 << 4)
# define DP_PCON_FRL_TRAINED_BW_40GBPS	      (1 << 5)
# define DP_PCON_FRL_TRAINED_BW_48GBPS	      (1 << 6)

#define DP_PROTOCOL_CONVERTER_CONTROL_0		0x3050 /* DP 1.3 */
# define DP_HDMI_DVI_OUTPUT_CONFIG		(1 << 0) /* DP 1.3 */
#define DP_PROTOCOL_CONVERTER_CONTROL_1		0x3051 /* DP 1.3 */
# define DP_CONVERSION_TO_YCBCR420_ENABLE	(1 << 0) /* DP 1.3 */
# define DP_HDMI_EDID_PROCESSING_DISABLE	(1 << 1) /* DP 1.4 */
# define DP_HDMI_AUTONOMOUS_SCRAMBLING_DISABLE	(1 << 2) /* DP 1.4 */
# define DP_HDMI_FORCE_SCRAMBLING		(1 << 3) /* DP 1.4 */
#define DP_PROTOCOL_CONVERTER_CONTROL_2		0x3052 /* DP 1.3 */
# define DP_CONVERSION_TO_YCBCR422_ENABLE	(1 << 0) /* DP 1.3 */
# define DP_PCON_ENABLE_DSC_ENCODER	        (1 << 1)
# define DP_PCON_ENCODER_PPS_OVERRIDE_MASK	(0x3 << 2)
# define DP_PCON_ENC_PPS_OVERRIDE_DISABLED      0
# define DP_PCON_ENC_PPS_OVERRIDE_EN_PARAMS     1
# define DP_PCON_ENC_PPS_OVERRIDE_EN_BUFFER     2
# define DP_CONVERSION_RGB_YCBCR_MASK	       (7 << 4)
# define DP_CONVERSION_BT601_RGB_YCBCR_ENABLE  (1 << 4)
# define DP_CONVERSION_BT709_RGB_YCBCR_ENABLE  (1 << 5)
# define DP_CONVERSION_BT2020_RGB_YCBCR_ENABLE (1 << 6)

/* PCON Downstream HDMI ERROR Status per Lane */
#define DP_PCON_HDMI_ERROR_STATUS_LN0          0x3037
#define DP_PCON_HDMI_ERROR_STATUS_LN1          0x3038
#define DP_PCON_HDMI_ERROR_STATUS_LN2          0x3039
#define DP_PCON_HDMI_ERROR_STATUS_LN3          0x303A
# define DP_PCON_HDMI_ERROR_COUNT_MASK         (0x7 << 0)
# define DP_PCON_HDMI_ERROR_COUNT_THREE_PLUS   (1 << 0)
# define DP_PCON_HDMI_ERROR_COUNT_TEN_PLUS     (1 << 1)
# define DP_PCON_HDMI_ERROR_COUNT_HUNDRED_PLUS (1 << 2)

/* PCON HDMI CONFIG PPS Override Buffer
 * Valid Offsets to be added to Base : 0-127
 */
#define DP_PCON_HDMI_PPS_OVERRIDE_BASE        0x3100

/* PCON HDMI CONFIG PPS Override Parameter: Slice height
 * Offset-0 8LSBs of the Slice height.
 * Offset-1 8MSBs of the Slice height.
 */
#define DP_PCON_HDMI_PPS_OVRD_SLICE_HEIGHT    0x3180

/* PCON HDMI CONFIG PPS Override Parameter: Slice width
 * Offset-0 8LSBs of the Slice width.
 * Offset-1 8MSBs of the Slice width.
 */
#define DP_PCON_HDMI_PPS_OVRD_SLICE_WIDTH    0x3182

/* PCON HDMI CONFIG PPS Override Parameter: bits_per_pixel
 * Offset-0 8LSBs of the bits_per_pixel.
 * Offset-1 2MSBs of the bits_per_pixel.
 */
#define DP_PCON_HDMI_PPS_OVRD_BPP	     0x3184

/* HDCP 1.3 and HDCP 2.2 */
#define DP_AUX_HDCP_BKSV		0x68000
#define DP_AUX_HDCP_RI_PRIME		0x68005
#define DP_AUX_HDCP_AKSV		0x68007
#define DP_AUX_HDCP_AN			0x6800C
#define DP_AUX_HDCP_V_PRIME(h)		(0x68014 + h * 4)
#define DP_AUX_HDCP_BCAPS		0x68028
# define DP_BCAPS_REPEATER_PRESENT	BIT(1)
# define DP_BCAPS_HDCP_CAPABLE		BIT(0)
#define DP_AUX_HDCP_BSTATUS		0x68029
# define DP_BSTATUS_REAUTH_REQ		BIT(3)
# define DP_BSTATUS_LINK_FAILURE	BIT(2)
# define DP_BSTATUS_R0_PRIME_READY	BIT(1)
# define DP_BSTATUS_READY		BIT(0)
#define DP_AUX_HDCP_BINFO		0x6802A
#define DP_AUX_HDCP_KSV_FIFO		0x6802C
#define DP_AUX_HDCP_AINFO		0x6803B

/* DP HDCP2.2 parameter offsets in DPCD address space */
#define DP_HDCP_2_2_REG_RTX_OFFSET		0x69000
#define DP_HDCP_2_2_REG_TXCAPS_OFFSET		0x69008
#define DP_HDCP_2_2_REG_CERT_RX_OFFSET		0x6900B
#define DP_HDCP_2_2_REG_RRX_OFFSET		0x69215
#define DP_HDCP_2_2_REG_RX_CAPS_OFFSET		0x6921D
#define DP_HDCP_2_2_REG_EKPUB_KM_OFFSET		0x69220
#define DP_HDCP_2_2_REG_EKH_KM_WR_OFFSET	0x692A0
#define DP_HDCP_2_2_REG_M_OFFSET		0x692B0
#define DP_HDCP_2_2_REG_HPRIME_OFFSET		0x692C0
#define DP_HDCP_2_2_REG_EKH_KM_RD_OFFSET	0x692E0
#define DP_HDCP_2_2_REG_RN_OFFSET		0x692F0
#define DP_HDCP_2_2_REG_LPRIME_OFFSET		0x692F8
#define DP_HDCP_2_2_REG_EDKEY_KS_OFFSET		0x69318
#define	DP_HDCP_2_2_REG_RIV_OFFSET		0x69328
#define DP_HDCP_2_2_REG_RXINFO_OFFSET		0x69330
#define DP_HDCP_2_2_REG_SEQ_NUM_V_OFFSET	0x69332
#define DP_HDCP_2_2_REG_VPRIME_OFFSET		0x69335
#define DP_HDCP_2_2_REG_RECV_ID_LIST_OFFSET	0x69345
#define DP_HDCP_2_2_REG_V_OFFSET		0x693E0
#define DP_HDCP_2_2_REG_SEQ_NUM_M_OFFSET	0x693F0
#define DP_HDCP_2_2_REG_K_OFFSET		0x693F3
#define DP_HDCP_2_2_REG_STREAM_ID_TYPE_OFFSET	0x693F5
#define DP_HDCP_2_2_REG_MPRIME_OFFSET		0x69473
#define DP_HDCP_2_2_REG_RXSTATUS_OFFSET		0x69493
#define DP_HDCP_2_2_REG_STREAM_TYPE_OFFSET	0x69494
#define DP_HDCP_2_2_REG_DBG_OFFSET		0x69518

/* LTTPR: Link Training (LT)-tunable PHY Repeaters */
#define DP_LT_TUNABLE_PHY_REPEATER_FIELD_DATA_STRUCTURE_REV 0xf0000 /* 1.3 */
#define DP_MAX_LINK_RATE_PHY_REPEATER			    0xf0001 /* 1.4a */
#define DP_PHY_REPEATER_CNT				    0xf0002 /* 1.3 */
#define DP_PHY_REPEATER_MODE				    0xf0003 /* 1.3 */
#define DP_MAX_LANE_COUNT_PHY_REPEATER			    0xf0004 /* 1.4a */
#define DP_Repeater_FEC_CAPABILITY			    0xf0004 /* 1.4 */
#define DP_PHY_REPEATER_EXTENDED_WAIT_TIMEOUT		    0xf0005 /* 1.4a */

enum drm_dp_phy {
	DP_PHY_DPRX,

	DP_PHY_LTTPR1,
	DP_PHY_LTTPR2,
	DP_PHY_LTTPR3,
	DP_PHY_LTTPR4,
	DP_PHY_LTTPR5,
	DP_PHY_LTTPR6,
	DP_PHY_LTTPR7,
	DP_PHY_LTTPR8,

	DP_MAX_LTTPR_COUNT = DP_PHY_LTTPR8,
};

#define DP_PHY_LTTPR(i)					    (DP_PHY_LTTPR1 + (i))

#define __DP_LTTPR1_BASE				    0xf0010 /* 1.3 */
#define __DP_LTTPR2_BASE				    0xf0060 /* 1.3 */
#define DP_LTTPR_BASE(dp_phy) \
	(__DP_LTTPR1_BASE + (__DP_LTTPR2_BASE - __DP_LTTPR1_BASE) * \
		((dp_phy) - DP_PHY_LTTPR1))

#define DP_LTTPR_REG(dp_phy, lttpr1_reg) \
	(DP_LTTPR_BASE(dp_phy) - DP_LTTPR_BASE(DP_PHY_LTTPR1) + (lttpr1_reg))

#define DP_TRAINING_PATTERN_SET_PHY_REPEATER1		    0xf0010 /* 1.3 */
#define DP_TRAINING_PATTERN_SET_PHY_REPEATER(dp_phy) \
	DP_LTTPR_REG(dp_phy, DP_TRAINING_PATTERN_SET_PHY_REPEATER1)

#define DP_TRAINING_LANE0_SET_PHY_REPEATER1		    0xf0011 /* 1.3 */
#define DP_TRAINING_LANE0_SET_PHY_REPEATER(dp_phy) \
	DP_LTTPR_REG(dp_phy, DP_TRAINING_LANE0_SET_PHY_REPEATER1)

#define DP_TRAINING_LANE1_SET_PHY_REPEATER1		    0xf0012 /* 1.3 */
#define DP_TRAINING_LANE2_SET_PHY_REPEATER1		    0xf0013 /* 1.3 */
#define DP_TRAINING_LANE3_SET_PHY_REPEATER1		    0xf0014 /* 1.3 */
#define DP_TRAINING_AUX_RD_INTERVAL_PHY_REPEATER1	    0xf0020 /* 1.4a */
#define DP_TRAINING_AUX_RD_INTERVAL_PHY_REPEATER(dp_phy)	\
	DP_LTTPR_REG(dp_phy, DP_TRAINING_AUX_RD_INTERVAL_PHY_REPEATER1)

#define DP_TRANSMITTER_CAPABILITY_PHY_REPEATER1		    0xf0021 /* 1.4a */
# define DP_VOLTAGE_SWING_LEVEL_3_SUPPORTED		    BIT(0)
# define DP_PRE_EMPHASIS_LEVEL_3_SUPPORTED		    BIT(1)

#define DP_LANE0_1_STATUS_PHY_REPEATER1			    0xf0030 /* 1.3 */
#define DP_LANE0_1_STATUS_PHY_REPEATER(dp_phy) \
	DP_LTTPR_REG(dp_phy, DP_LANE0_1_STATUS_PHY_REPEATER1)

#define DP_LANE2_3_STATUS_PHY_REPEATER1			    0xf0031 /* 1.3 */

#define DP_LANE_ALIGN_STATUS_UPDATED_PHY_REPEATER1	    0xf0032 /* 1.3 */
#define DP_ADJUST_REQUEST_LANE0_1_PHY_REPEATER1		    0xf0033 /* 1.3 */
#define DP_ADJUST_REQUEST_LANE2_3_PHY_REPEATER1		    0xf0034 /* 1.3 */
#define DP_SYMBOL_ERROR_COUNT_LANE0_PHY_REPEATER1	    0xf0035 /* 1.3 */
#define DP_SYMBOL_ERROR_COUNT_LANE1_PHY_REPEATER1	    0xf0037 /* 1.3 */
#define DP_SYMBOL_ERROR_COUNT_LANE2_PHY_REPEATER1	    0xf0039 /* 1.3 */
#define DP_SYMBOL_ERROR_COUNT_LANE3_PHY_REPEATER1	    0xf003b /* 1.3 */
#define DP_FEC_STATUS_PHY_REPEATER1			    0xf0290 /* 1.4 */
#define DP_FEC_ERROR_COUNT_PHY_REPEATER1                    0xf0291 /* 1.4 */
#define DP_FEC_CAPABILITY_PHY_REPEATER1                     0xf0294 /* 1.4a */

/* Repeater modes */
#define DP_PHY_REPEATER_MODE_TRANSPARENT		    0x55    /* 1.3 */
#define DP_PHY_REPEATER_MODE_NON_TRANSPARENT		    0xaa    /* 1.3 */

/* DP HDCP message start offsets in DPCD address space */
#define DP_HDCP_2_2_AKE_INIT_OFFSET		DP_HDCP_2_2_REG_RTX_OFFSET
#define DP_HDCP_2_2_AKE_SEND_CERT_OFFSET	DP_HDCP_2_2_REG_CERT_RX_OFFSET
#define DP_HDCP_2_2_AKE_NO_STORED_KM_OFFSET	DP_HDCP_2_2_REG_EKPUB_KM_OFFSET
#define DP_HDCP_2_2_AKE_STORED_KM_OFFSET	DP_HDCP_2_2_REG_EKH_KM_WR_OFFSET
#define DP_HDCP_2_2_AKE_SEND_HPRIME_OFFSET	DP_HDCP_2_2_REG_HPRIME_OFFSET
#define DP_HDCP_2_2_AKE_SEND_PAIRING_INFO_OFFSET \
						DP_HDCP_2_2_REG_EKH_KM_RD_OFFSET
#define DP_HDCP_2_2_LC_INIT_OFFSET		DP_HDCP_2_2_REG_RN_OFFSET
#define DP_HDCP_2_2_LC_SEND_LPRIME_OFFSET	DP_HDCP_2_2_REG_LPRIME_OFFSET
#define DP_HDCP_2_2_SKE_SEND_EKS_OFFSET		DP_HDCP_2_2_REG_EDKEY_KS_OFFSET
#define DP_HDCP_2_2_REP_SEND_RECVID_LIST_OFFSET	DP_HDCP_2_2_REG_RXINFO_OFFSET
#define DP_HDCP_2_2_REP_SEND_ACK_OFFSET		DP_HDCP_2_2_REG_V_OFFSET
#define DP_HDCP_2_2_REP_STREAM_MANAGE_OFFSET	DP_HDCP_2_2_REG_SEQ_NUM_M_OFFSET
#define DP_HDCP_2_2_REP_STREAM_READY_OFFSET	DP_HDCP_2_2_REG_MPRIME_OFFSET

#define HDCP_2_2_DP_RXSTATUS_LEN		1
#define HDCP_2_2_DP_RXSTATUS_READY(x)		((x) & BIT(0))
#define HDCP_2_2_DP_RXSTATUS_H_PRIME(x)		((x) & BIT(1))
#define HDCP_2_2_DP_RXSTATUS_PAIRING(x)		((x) & BIT(2))
#define HDCP_2_2_DP_RXSTATUS_REAUTH_REQ(x)	((x) & BIT(3))
#define HDCP_2_2_DP_RXSTATUS_LINK_FAILED(x)	((x) & BIT(4))

/* DP 1.2 Sideband message defines */
/* peer device type - DP 1.2a Table 2-92 */
#define DP_PEER_DEVICE_NONE		0x0
#define DP_PEER_DEVICE_SOURCE_OR_SST	0x1
#define DP_PEER_DEVICE_MST_BRANCHING	0x2
#define DP_PEER_DEVICE_SST_SINK		0x3
#define DP_PEER_DEVICE_DP_LEGACY_CONV	0x4

/* DP 1.2 MST sideband request names DP 1.2a Table 2-80 */
#define DP_GET_MSG_TRANSACTION_VERSION	0x00 /* DP 1.3 */
#define DP_LINK_ADDRESS			0x01
#define DP_CONNECTION_STATUS_NOTIFY	0x02
#define DP_ENUM_PATH_RESOURCES		0x10
#define DP_ALLOCATE_PAYLOAD		0x11
#define DP_QUERY_PAYLOAD		0x12
#define DP_RESOURCE_STATUS_NOTIFY	0x13
#define DP_CLEAR_PAYLOAD_ID_TABLE	0x14
#define DP_REMOTE_DPCD_READ		0x20
#define DP_REMOTE_DPCD_WRITE		0x21
#define DP_REMOTE_I2C_READ		0x22
#define DP_REMOTE_I2C_WRITE		0x23
#define DP_POWER_UP_PHY			0x24
#define DP_POWER_DOWN_PHY		0x25
#define DP_SINK_EVENT_NOTIFY		0x30
#define DP_QUERY_STREAM_ENC_STATUS	0x38
#define  DP_QUERY_STREAM_ENC_STATUS_STATE_NO_EXIST	0
#define  DP_QUERY_STREAM_ENC_STATUS_STATE_INACTIVE	1
#define  DP_QUERY_STREAM_ENC_STATUS_STATE_ACTIVE	2

/* DP 1.2 MST sideband reply types */
#define DP_SIDEBAND_REPLY_ACK		0x00
#define DP_SIDEBAND_REPLY_NAK		0x01

/* DP 1.2 MST sideband nak reasons - table 2.84 */
#define DP_NAK_WRITE_FAILURE		0x01
#define DP_NAK_INVALID_READ		0x02
#define DP_NAK_CRC_FAILURE		0x03
#define DP_NAK_BAD_PARAM		0x04
#define DP_NAK_DEFER			0x05
#define DP_NAK_LINK_FAILURE		0x06
#define DP_NAK_NO_RESOURCES		0x07
#define DP_NAK_DPCD_FAIL		0x08
#define DP_NAK_I2C_NAK			0x09
#define DP_NAK_ALLOCATE_FAIL		0x0a

#define MODE_I2C_START	1
#define MODE_I2C_WRITE	2
#define MODE_I2C_READ	4
#define MODE_I2C_STOP	8

/* DP 1.2 MST PORTs - Section 2.5.1 v1.2a spec */
#define DP_MST_PHYSICAL_PORT_0 0
#define DP_MST_LOGICAL_PORT_0 8

#define DP_LINK_CONSTANT_N_VALUE 0x8000
#define DP_LINK_STATUS_SIZE	   6
bool drm_dp_channel_eq_ok(const u8 link_status[DP_LINK_STATUS_SIZE],
			  int lane_count);
bool drm_dp_clock_recovery_ok(const u8 link_status[DP_LINK_STATUS_SIZE],
			      int lane_count);
u8 drm_dp_get_adjust_request_voltage(const u8 link_status[DP_LINK_STATUS_SIZE],
				     int lane);
u8 drm_dp_get_adjust_request_pre_emphasis(const u8 link_status[DP_LINK_STATUS_SIZE],
					  int lane);
u8 drm_dp_get_adjust_request_post_cursor(const u8 link_status[DP_LINK_STATUS_SIZE],
					 unsigned int lane);

#define DP_BRANCH_OUI_HEADER_SIZE	0xc
#define DP_RECEIVER_CAP_SIZE		0xf
#define DP_DSC_RECEIVER_CAP_SIZE        0xf
#define EDP_PSR_RECEIVER_CAP_SIZE	2
#define EDP_DISPLAY_CTL_CAP_SIZE	3
#define DP_LTTPR_COMMON_CAP_SIZE	8
#define DP_LTTPR_PHY_CAP_SIZE		3

void drm_dp_link_train_clock_recovery_delay(const u8 dpcd[DP_RECEIVER_CAP_SIZE]);
void drm_dp_lttpr_link_train_clock_recovery_delay(void);
void drm_dp_link_train_channel_eq_delay(const u8 dpcd[DP_RECEIVER_CAP_SIZE]);
void drm_dp_lttpr_link_train_channel_eq_delay(const u8 caps[DP_LTTPR_PHY_CAP_SIZE]);

u8 drm_dp_link_rate_to_bw_code(int link_rate);
int drm_dp_bw_code_to_link_rate(u8 link_bw);

#define DP_SDP_AUDIO_TIMESTAMP		0x01
#define DP_SDP_AUDIO_STREAM		0x02
#define DP_SDP_EXTENSION		0x04 /* DP 1.1 */
#define DP_SDP_AUDIO_COPYMANAGEMENT	0x05 /* DP 1.2 */
#define DP_SDP_ISRC			0x06 /* DP 1.2 */
#define DP_SDP_VSC			0x07 /* DP 1.2 */
#define DP_SDP_CAMERA_GENERIC(i)	(0x08 + (i)) /* 0-7, DP 1.3 */
#define DP_SDP_PPS			0x10 /* DP 1.4 */
#define DP_SDP_VSC_EXT_VESA		0x20 /* DP 1.4 */
#define DP_SDP_VSC_EXT_CEA		0x21 /* DP 1.4 */
/* 0x80+ CEA-861 infoframe types */

/**
 * struct dp_sdp_header - DP secondary data packet header
 * @HB0: Secondary Data Packet ID
 * @HB1: Secondary Data Packet Type
 * @HB2: Secondary Data Packet Specific header, Byte 0
 * @HB3: Secondary Data packet Specific header, Byte 1
 */
struct dp_sdp_header {
	u8 HB0;
	u8 HB1;
	u8 HB2;
	u8 HB3;
} __packed;

#define EDP_SDP_HEADER_REVISION_MASK		0x1F
#define EDP_SDP_HEADER_VALID_PAYLOAD_BYTES	0x1F
#define DP_SDP_PPS_HEADER_PAYLOAD_BYTES_MINUS_1 0x7F

/**
 * struct dp_sdp - DP secondary data packet
 * @sdp_header: DP secondary data packet header
 * @db: DP secondaray data packet data blocks
 * VSC SDP Payload for PSR
 * db[0]: Stereo Interface
 * db[1]: 0 - PSR State; 1 - Update RFB; 2 - CRC Valid
 * db[2]: CRC value bits 7:0 of the R or Cr component
 * db[3]: CRC value bits 15:8 of the R or Cr component
 * db[4]: CRC value bits 7:0 of the G or Y component
 * db[5]: CRC value bits 15:8 of the G or Y component
 * db[6]: CRC value bits 7:0 of the B or Cb component
 * db[7]: CRC value bits 15:8 of the B or Cb component
 * db[8] - db[31]: Reserved
 * VSC SDP Payload for Pixel Encoding/Colorimetry Format
 * db[0] - db[15]: Reserved
 * db[16]: Pixel Encoding and Colorimetry Formats
 * db[17]: Dynamic Range and Component Bit Depth
 * db[18]: Content Type
 * db[19] - db[31]: Reserved
 */
struct dp_sdp {
	struct dp_sdp_header sdp_header;
	u8 db[32];
} __packed;

#define EDP_VSC_PSR_STATE_ACTIVE	(1<<0)
#define EDP_VSC_PSR_UPDATE_RFB		(1<<1)
#define EDP_VSC_PSR_CRC_VALUES_VALID	(1<<2)

/**
 * enum dp_pixelformat - drm DP Pixel encoding formats
 *
 * This enum is used to indicate DP VSC SDP Pixel encoding formats.
 * It is based on DP 1.4 spec [Table 2-117: VSC SDP Payload for DB16 through
 * DB18]
 *
 * @DP_PIXELFORMAT_RGB: RGB pixel encoding format
 * @DP_PIXELFORMAT_YUV444: YCbCr 4:4:4 pixel encoding format
 * @DP_PIXELFORMAT_YUV422: YCbCr 4:2:2 pixel encoding format
 * @DP_PIXELFORMAT_YUV420: YCbCr 4:2:0 pixel encoding format
 * @DP_PIXELFORMAT_Y_ONLY: Y Only pixel encoding format
 * @DP_PIXELFORMAT_RAW: RAW pixel encoding format
 * @DP_PIXELFORMAT_RESERVED: Reserved pixel encoding format
 */
enum dp_pixelformat {
	DP_PIXELFORMAT_RGB = 0,
	DP_PIXELFORMAT_YUV444 = 0x1,
	DP_PIXELFORMAT_YUV422 = 0x2,
	DP_PIXELFORMAT_YUV420 = 0x3,
	DP_PIXELFORMAT_Y_ONLY = 0x4,
	DP_PIXELFORMAT_RAW = 0x5,
	DP_PIXELFORMAT_RESERVED = 0x6,
};

/**
 * enum dp_colorimetry - drm DP Colorimetry formats
 *
 * This enum is used to indicate DP VSC SDP Colorimetry formats.
 * It is based on DP 1.4 spec [Table 2-117: VSC SDP Payload for DB16 through
 * DB18] and a name of enum member follows DRM_MODE_COLORIMETRY definition.
 *
 * @DP_COLORIMETRY_DEFAULT: sRGB (IEC 61966-2-1) or
 *                          ITU-R BT.601 colorimetry format
 * @DP_COLORIMETRY_RGB_WIDE_FIXED: RGB wide gamut fixed point colorimetry format
 * @DP_COLORIMETRY_BT709_YCC: ITU-R BT.709 colorimetry format
 * @DP_COLORIMETRY_RGB_WIDE_FLOAT: RGB wide gamut floating point
 *                                 (scRGB (IEC 61966-2-2)) colorimetry format
 * @DP_COLORIMETRY_XVYCC_601: xvYCC601 colorimetry format
 * @DP_COLORIMETRY_OPRGB: OpRGB colorimetry format
 * @DP_COLORIMETRY_XVYCC_709: xvYCC709 colorimetry format
 * @DP_COLORIMETRY_DCI_P3_RGB: DCI-P3 (SMPTE RP 431-2) colorimetry format
 * @DP_COLORIMETRY_SYCC_601: sYCC601 colorimetry format
 * @DP_COLORIMETRY_RGB_CUSTOM: RGB Custom Color Profile colorimetry format
 * @DP_COLORIMETRY_OPYCC_601: opYCC601 colorimetry format
 * @DP_COLORIMETRY_BT2020_RGB: ITU-R BT.2020 R' G' B' colorimetry format
 * @DP_COLORIMETRY_BT2020_CYCC: ITU-R BT.2020 Y'c C'bc C'rc colorimetry format
 * @DP_COLORIMETRY_BT2020_YCC: ITU-R BT.2020 Y' C'b C'r colorimetry format
 */
enum dp_colorimetry {
	DP_COLORIMETRY_DEFAULT = 0,
	DP_COLORIMETRY_RGB_WIDE_FIXED = 0x1,
	DP_COLORIMETRY_BT709_YCC = 0x1,
	DP_COLORIMETRY_RGB_WIDE_FLOAT = 0x2,
	DP_COLORIMETRY_XVYCC_601 = 0x2,
	DP_COLORIMETRY_OPRGB = 0x3,
	DP_COLORIMETRY_XVYCC_709 = 0x3,
	DP_COLORIMETRY_DCI_P3_RGB = 0x4,
	DP_COLORIMETRY_SYCC_601 = 0x4,
	DP_COLORIMETRY_RGB_CUSTOM = 0x5,
	DP_COLORIMETRY_OPYCC_601 = 0x5,
	DP_COLORIMETRY_BT2020_RGB = 0x6,
	DP_COLORIMETRY_BT2020_CYCC = 0x6,
	DP_COLORIMETRY_BT2020_YCC = 0x7,
};

/**
 * enum dp_dynamic_range - drm DP Dynamic Range
 *
 * This enum is used to indicate DP VSC SDP Dynamic Range.
 * It is based on DP 1.4 spec [Table 2-117: VSC SDP Payload for DB16 through
 * DB18]
 *
 * @DP_DYNAMIC_RANGE_VESA: VESA range
 * @DP_DYNAMIC_RANGE_CTA: CTA range
 */
enum dp_dynamic_range {
	DP_DYNAMIC_RANGE_VESA = 0,
	DP_DYNAMIC_RANGE_CTA = 1,
};

/**
 * enum dp_content_type - drm DP Content Type
 *
 * This enum is used to indicate DP VSC SDP Content Types.
 * It is based on DP 1.4 spec [Table 2-117: VSC SDP Payload for DB16 through
 * DB18]
 * CTA-861-G defines content types and expected processing by a sink device
 *
 * @DP_CONTENT_TYPE_NOT_DEFINED: Not defined type
 * @DP_CONTENT_TYPE_GRAPHICS: Graphics type
 * @DP_CONTENT_TYPE_PHOTO: Photo type
 * @DP_CONTENT_TYPE_VIDEO: Video type
 * @DP_CONTENT_TYPE_GAME: Game type
 */
enum dp_content_type {
	DP_CONTENT_TYPE_NOT_DEFINED = 0x00,
	DP_CONTENT_TYPE_GRAPHICS = 0x01,
	DP_CONTENT_TYPE_PHOTO = 0x02,
	DP_CONTENT_TYPE_VIDEO = 0x03,
	DP_CONTENT_TYPE_GAME = 0x04,
};

/**
 * struct drm_dp_vsc_sdp - drm DP VSC SDP
 *
 * This structure represents a DP VSC SDP of drm
 * It is based on DP 1.4 spec [Table 2-116: VSC SDP Header Bytes] and
 * [Table 2-117: VSC SDP Payload for DB16 through DB18]
 *
 * @sdp_type: secondary-data packet type
 * @revision: revision number
 * @length: number of valid data bytes
 * @pixelformat: pixel encoding format
 * @colorimetry: colorimetry format
 * @bpc: bit per color
 * @dynamic_range: dynamic range information
 * @content_type: CTA-861-G defines content types and expected processing by a sink device
 */
struct drm_dp_vsc_sdp {
	unsigned char sdp_type;
	unsigned char revision;
	unsigned char length;
	enum dp_pixelformat pixelformat;
	enum dp_colorimetry colorimetry;
	int bpc;
	enum dp_dynamic_range dynamic_range;
	enum dp_content_type content_type;
};

void drm_dp_vsc_sdp_log(const char *level, struct device *dev,
			const struct drm_dp_vsc_sdp *vsc);

int drm_dp_psr_setup_time(const u8 psr_cap[EDP_PSR_RECEIVER_CAP_SIZE]);

static inline int
drm_dp_max_link_rate(const u8 dpcd[DP_RECEIVER_CAP_SIZE])
{
	return drm_dp_bw_code_to_link_rate(dpcd[DP_MAX_LINK_RATE]);
}

static inline u8
drm_dp_max_lane_count(const u8 dpcd[DP_RECEIVER_CAP_SIZE])
{
	return dpcd[DP_MAX_LANE_COUNT] & DP_MAX_LANE_COUNT_MASK;
}

static inline bool
drm_dp_enhanced_frame_cap(const u8 dpcd[DP_RECEIVER_CAP_SIZE])
{
	return dpcd[DP_DPCD_REV] >= 0x11 &&
		(dpcd[DP_MAX_LANE_COUNT] & DP_ENHANCED_FRAME_CAP);
}

static inline bool
drm_dp_fast_training_cap(const u8 dpcd[DP_RECEIVER_CAP_SIZE])
{
	return dpcd[DP_DPCD_REV] >= 0x11 &&
		(dpcd[DP_MAX_DOWNSPREAD] & DP_NO_AUX_HANDSHAKE_LINK_TRAINING);
}

static inline bool
drm_dp_tps3_supported(const u8 dpcd[DP_RECEIVER_CAP_SIZE])
{
	return dpcd[DP_DPCD_REV] >= 0x12 &&
		dpcd[DP_MAX_LANE_COUNT] & DP_TPS3_SUPPORTED;
}

static inline bool
drm_dp_tps4_supported(const u8 dpcd[DP_RECEIVER_CAP_SIZE])
{
	return dpcd[DP_DPCD_REV] >= 0x14 &&
		dpcd[DP_MAX_DOWNSPREAD] & DP_TPS4_SUPPORTED;
}

static inline u8
drm_dp_training_pattern_mask(const u8 dpcd[DP_RECEIVER_CAP_SIZE])
{
	return (dpcd[DP_DPCD_REV] >= 0x14) ? DP_TRAINING_PATTERN_MASK_1_4 :
		DP_TRAINING_PATTERN_MASK;
}

static inline bool
drm_dp_is_branch(const u8 dpcd[DP_RECEIVER_CAP_SIZE])
{
	return dpcd[DP_DOWNSTREAMPORT_PRESENT] & DP_DWN_STRM_PORT_PRESENT;
}

/* DP/eDP DSC support */
u8 drm_dp_dsc_sink_max_slice_count(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE],
				   bool is_edp);
u8 drm_dp_dsc_sink_line_buf_depth(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE]);
int drm_dp_dsc_sink_supported_input_bpcs(const u8 dsc_dpc[DP_DSC_RECEIVER_CAP_SIZE],
					 u8 dsc_bpc[3]);

static inline bool
drm_dp_sink_supports_dsc(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE])
{
	return dsc_dpcd[DP_DSC_SUPPORT - DP_DSC_SUPPORT] &
		DP_DSC_DECOMPRESSION_IS_SUPPORTED;
}

static inline u16
drm_edp_dsc_sink_output_bpp(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE])
{
	return dsc_dpcd[DP_DSC_MAX_BITS_PER_PIXEL_LOW - DP_DSC_SUPPORT] |
		(dsc_dpcd[DP_DSC_MAX_BITS_PER_PIXEL_HI - DP_DSC_SUPPORT] &
		 DP_DSC_MAX_BITS_PER_PIXEL_HI_MASK <<
		 DP_DSC_MAX_BITS_PER_PIXEL_HI_SHIFT);
}

static inline u32
drm_dp_dsc_sink_max_slice_width(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE])
{
	/* Max Slicewidth = Number of Pixels * 320 */
	return dsc_dpcd[DP_DSC_MAX_SLICE_WIDTH - DP_DSC_SUPPORT] *
		DP_DSC_SLICE_WIDTH_MULTIPLIER;
}

/* Forward Error Correction Support on DP 1.4 */
static inline bool
drm_dp_sink_supports_fec(const u8 fec_capable)
{
	return fec_capable & DP_FEC_CAPABLE;
}

static inline bool
drm_dp_channel_coding_supported(const u8 dpcd[DP_RECEIVER_CAP_SIZE])
{
	return dpcd[DP_MAIN_LINK_CHANNEL_CODING] & DP_CAP_ANSI_8B10B;
}

static inline bool
drm_dp_alternate_scrambler_reset_cap(const u8 dpcd[DP_RECEIVER_CAP_SIZE])
{
	return dpcd[DP_EDP_CONFIGURATION_CAP] &
			DP_ALTERNATE_SCRAMBLER_RESET_CAP;
}

/* Ignore MSA timing for Adaptive Sync support on DP 1.4 */
static inline bool
drm_dp_sink_can_do_video_without_timing_msa(const u8 dpcd[DP_RECEIVER_CAP_SIZE])
{
	return dpcd[DP_DOWN_STREAM_PORT_COUNT] &
		DP_MSA_TIMING_PAR_IGNORED;
}

/*
 * DisplayPort AUX channel
 */

/**
 * struct drm_dp_aux_msg - DisplayPort AUX channel transaction
 * @address: address of the (first) register to access
 * @request: contains the type of transaction (see DP_AUX_* macros)
 * @reply: upon completion, contains the reply type of the transaction
 * @buffer: pointer to a transmission or reception buffer
 * @size: size of @buffer
 */
struct drm_dp_aux_msg {
	unsigned int address;
	u8 request;
	u8 reply;
	void *buffer;
	size_t size;
};

struct cec_adapter;
struct edid;
struct drm_connector;

/**
 * struct drm_dp_aux_cec - DisplayPort CEC-Tunneling-over-AUX
 * @lock: mutex protecting this struct
 * @adap: the CEC adapter for CEC-Tunneling-over-AUX support.
 * @connector: the connector this CEC adapter is associated with
 * @unregister_work: unregister the CEC adapter
 */
struct drm_dp_aux_cec {
	struct mutex lock;
	struct cec_adapter *adap;
	struct drm_connector *connector;
	struct delayed_work unregister_work;
};

/**
 * struct drm_dp_aux - DisplayPort AUX channel
 * @name: user-visible name of this AUX channel and the I2C-over-AUX adapter
 * @ddc: I2C adapter that can be used for I2C-over-AUX communication
 * @dev: pointer to struct device that is the parent for this AUX channel
 * @crtc: backpointer to the crtc that is currently using this AUX channel
 * @hw_mutex: internal mutex used for locking transfers
 * @crc_work: worker that captures CRCs for each frame
 * @crc_count: counter of captured frame CRCs
 * @transfer: transfers a message representing a single AUX transaction
 *
 * The .dev field should be set to a pointer to the device that implements
 * the AUX channel.
 *
 * The .name field may be used to specify the name of the I2C adapter. If set to
 * NULL, dev_name() of .dev will be used.
 *
 * Drivers provide a hardware-specific implementation of how transactions
 * are executed via the .transfer() function. A pointer to a drm_dp_aux_msg
 * structure describing the transaction is passed into this function. Upon
 * success, the implementation should return the number of payload bytes
 * that were transferred, or a negative error-code on failure. Helpers
 * propagate errors from the .transfer() function, with the exception of
 * the -EBUSY error, which causes a transaction to be retried. On a short,
 * helpers will return -EPROTO to make it simpler to check for failure.
 *
 * An AUX channel can also be used to transport I2C messages to a sink. A
 * typical application of that is to access an EDID that's present in the
 * sink device. The .transfer() function can also be used to execute such
 * transactions. The drm_dp_aux_register() function registers an I2C
 * adapter that can be passed to drm_probe_ddc(). Upon removal, drivers
 * should call drm_dp_aux_unregister() to remove the I2C adapter.
 * The I2C adapter uses long transfers by default; if a partial response is
 * received, the adapter will drop down to the size given by the partial
 * response for this transaction only.
 *
 * Note that the aux helper code assumes that the .transfer() function
 * only modifies the reply field of the drm_dp_aux_msg structure.  The
 * retry logic and i2c helpers assume this is the case.
 */
struct drm_dp_aux {
	const char *name;
	struct i2c_adapter ddc;
	struct device *dev;
	struct drm_crtc *crtc;
	struct mutex hw_mutex;
	struct work_struct crc_work;
	u8 crc_count;
	ssize_t (*transfer)(struct drm_dp_aux *aux,
			    struct drm_dp_aux_msg *msg);
	/**
	 * @i2c_nack_count: Counts I2C NACKs, used for DP validation.
	 */
	unsigned i2c_nack_count;
	/**
	 * @i2c_defer_count: Counts I2C DEFERs, used for DP validation.
	 */
	unsigned i2c_defer_count;
	/**
	 * @cec: struct containing fields used for CEC-Tunneling-over-AUX.
	 */
	struct drm_dp_aux_cec cec;
	/**
	 * @is_remote: Is this AUX CH actually using sideband messaging.
	 */
	bool is_remote;
};

ssize_t drm_dp_dpcd_read(struct drm_dp_aux *aux, unsigned int offset,
			 void *buffer, size_t size);
ssize_t drm_dp_dpcd_write(struct drm_dp_aux *aux, unsigned int offset,
			  void *buffer, size_t size);

/**
 * drm_dp_dpcd_readb() - read a single byte from the DPCD
 * @aux: DisplayPort AUX channel
 * @offset: address of the register to read
 * @valuep: location where the value of the register will be stored
 *
 * Returns the number of bytes transferred (1) on success, or a negative
 * error code on failure.
 */
static inline ssize_t drm_dp_dpcd_readb(struct drm_dp_aux *aux,
					unsigned int offset, u8 *valuep)
{
	return drm_dp_dpcd_read(aux, offset, valuep, 1);
}

/**
 * drm_dp_dpcd_writeb() - write a single byte to the DPCD
 * @aux: DisplayPort AUX channel
 * @offset: address of the register to write
 * @value: value to write to the register
 *
 * Returns the number of bytes transferred (1) on success, or a negative
 * error code on failure.
 */
static inline ssize_t drm_dp_dpcd_writeb(struct drm_dp_aux *aux,
					 unsigned int offset, u8 value)
{
	return drm_dp_dpcd_write(aux, offset, &value, 1);
}

int drm_dp_read_dpcd_caps(struct drm_dp_aux *aux,
			  u8 dpcd[DP_RECEIVER_CAP_SIZE]);

int drm_dp_dpcd_read_link_status(struct drm_dp_aux *aux,
				 u8 status[DP_LINK_STATUS_SIZE]);

int drm_dp_dpcd_read_phy_link_status(struct drm_dp_aux *aux,
				     enum drm_dp_phy dp_phy,
				     u8 link_status[DP_LINK_STATUS_SIZE]);

bool drm_dp_send_real_edid_checksum(struct drm_dp_aux *aux,
				    u8 real_edid_checksum);

int drm_dp_read_downstream_info(struct drm_dp_aux *aux,
				const u8 dpcd[DP_RECEIVER_CAP_SIZE],
				u8 downstream_ports[DP_MAX_DOWNSTREAM_PORTS]);
bool drm_dp_downstream_is_type(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
			       const u8 port_cap[4], u8 type);
bool drm_dp_downstream_is_tmds(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
			       const u8 port_cap[4],
			       const struct edid *edid);
int drm_dp_downstream_max_dotclock(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
				   const u8 port_cap[4]);
int drm_dp_downstream_max_tmds_clock(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
				     const u8 port_cap[4],
				     const struct edid *edid);
int drm_dp_downstream_min_tmds_clock(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
				     const u8 port_cap[4],
				     const struct edid *edid);
int drm_dp_downstream_max_bpc(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
			      const u8 port_cap[4],
			      const struct edid *edid);
bool drm_dp_downstream_420_passthrough(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
				       const u8 port_cap[4]);
bool drm_dp_downstream_444_to_420_conversion(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
					     const u8 port_cap[4]);
struct drm_display_mode *drm_dp_downstream_mode(struct drm_device *dev,
						const u8 dpcd[DP_RECEIVER_CAP_SIZE],
						const u8 port_cap[4]);
int drm_dp_downstream_id(struct drm_dp_aux *aux, char id[6]);
void drm_dp_downstream_debug(struct seq_file *m,
			     const u8 dpcd[DP_RECEIVER_CAP_SIZE],
			     const u8 port_cap[4],
			     const struct edid *edid,
			     struct drm_dp_aux *aux);
enum drm_mode_subconnector
drm_dp_subconnector_type(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
			 const u8 port_cap[4]);
void drm_dp_set_subconnector_property(struct drm_connector *connector,
				      enum drm_connector_status status,
				      const u8 *dpcd,
				      const u8 port_cap[4]);

struct drm_dp_desc;
bool drm_dp_read_sink_count_cap(struct drm_connector *connector,
				const u8 dpcd[DP_RECEIVER_CAP_SIZE],
				const struct drm_dp_desc *desc);
int drm_dp_read_sink_count(struct drm_dp_aux *aux);

int drm_dp_read_lttpr_common_caps(struct drm_dp_aux *aux,
				  u8 caps[DP_LTTPR_COMMON_CAP_SIZE]);
int drm_dp_read_lttpr_phy_caps(struct drm_dp_aux *aux,
			       enum drm_dp_phy dp_phy,
			       u8 caps[DP_LTTPR_PHY_CAP_SIZE]);
int drm_dp_lttpr_count(const u8 cap[DP_LTTPR_COMMON_CAP_SIZE]);
int drm_dp_lttpr_max_link_rate(const u8 caps[DP_LTTPR_COMMON_CAP_SIZE]);
int drm_dp_lttpr_max_lane_count(const u8 caps[DP_LTTPR_COMMON_CAP_SIZE]);
bool drm_dp_lttpr_voltage_swing_level_3_supported(const u8 caps[DP_LTTPR_PHY_CAP_SIZE]);
bool drm_dp_lttpr_pre_emphasis_level_3_supported(const u8 caps[DP_LTTPR_PHY_CAP_SIZE]);

void drm_dp_remote_aux_init(struct drm_dp_aux *aux);
void drm_dp_aux_init(struct drm_dp_aux *aux);
int drm_dp_aux_register(struct drm_dp_aux *aux);
void drm_dp_aux_unregister(struct drm_dp_aux *aux);

int drm_dp_start_crc(struct drm_dp_aux *aux, struct drm_crtc *crtc);
int drm_dp_stop_crc(struct drm_dp_aux *aux);

struct drm_dp_dpcd_ident {
	u8 oui[3];
	u8 device_id[6];
	u8 hw_rev;
	u8 sw_major_rev;
	u8 sw_minor_rev;
} __packed;

/**
 * struct drm_dp_desc - DP branch/sink device descriptor
 * @ident: DP device identification from DPCD 0x400 (sink) or 0x500 (branch).
 * @quirks: Quirks; use drm_dp_has_quirk() to query for the quirks.
 */
struct drm_dp_desc {
	struct drm_dp_dpcd_ident ident;
	u32 quirks;
};

int drm_dp_read_desc(struct drm_dp_aux *aux, struct drm_dp_desc *desc,
		     bool is_branch);

/**
 * enum drm_dp_quirk - Display Port sink/branch device specific quirks
 *
 * Display Port sink and branch devices in the wild have a variety of bugs, try
 * to collect them here. The quirks are shared, but it's up to the drivers to
 * implement workarounds for them.
 */
enum drm_dp_quirk {
	/**
	 * @DP_DPCD_QUIRK_CONSTANT_N:
	 *
	 * The device requires main link attributes Mvid and Nvid to be limited
	 * to 16 bits. So will give a constant value (0x8000) for compatability.
	 */
	DP_DPCD_QUIRK_CONSTANT_N,
	/**
	 * @DP_DPCD_QUIRK_NO_PSR:
	 *
	 * The device does not support PSR even if reports that it supports or
	 * driver still need to implement proper handling for such device.
	 */
	DP_DPCD_QUIRK_NO_PSR,
	/**
	 * @DP_DPCD_QUIRK_NO_SINK_COUNT:
	 *
	 * The device does not set SINK_COUNT to a non-zero value.
	 * The driver should ignore SINK_COUNT during detection. Note that
	 * drm_dp_read_sink_count_cap() automatically checks for this quirk.
	 */
	DP_DPCD_QUIRK_NO_SINK_COUNT,
	/**
	 * @DP_DPCD_QUIRK_DSC_WITHOUT_VIRTUAL_DPCD:
	 *
	 * The device supports MST DSC despite not supporting Virtual DPCD.
	 * The DSC caps can be read from the physical aux instead.
	 */
	DP_DPCD_QUIRK_DSC_WITHOUT_VIRTUAL_DPCD,
	/**
	 * @DP_DPCD_QUIRK_CAN_DO_MAX_LINK_RATE_3_24_GBPS:
	 *
	 * The device supports a link rate of 3.24 Gbps (multiplier 0xc) despite
	 * the DP_MAX_LINK_RATE register reporting a lower max multiplier.
	 */
	DP_DPCD_QUIRK_CAN_DO_MAX_LINK_RATE_3_24_GBPS,
};

/**
 * drm_dp_has_quirk() - does the DP device have a specific quirk
 * @desc: Device descriptor filled by drm_dp_read_desc()
 * @quirk: Quirk to query for
 *
 * Return true if DP device identified by @desc has @quirk.
 */
static inline bool
drm_dp_has_quirk(const struct drm_dp_desc *desc, enum drm_dp_quirk quirk)
{
	return desc->quirks & BIT(quirk);
}

#ifdef CONFIG_DRM_DP_CEC
void drm_dp_cec_irq(struct drm_dp_aux *aux);
void drm_dp_cec_register_connector(struct drm_dp_aux *aux,
				   struct drm_connector *connector);
void drm_dp_cec_unregister_connector(struct drm_dp_aux *aux);
void drm_dp_cec_set_edid(struct drm_dp_aux *aux, const struct edid *edid);
void drm_dp_cec_unset_edid(struct drm_dp_aux *aux);
#else
static inline void drm_dp_cec_irq(struct drm_dp_aux *aux)
{
}

static inline void
drm_dp_cec_register_connector(struct drm_dp_aux *aux,
			      struct drm_connector *connector)
{
}

static inline void drm_dp_cec_unregister_connector(struct drm_dp_aux *aux)
{
}

static inline void drm_dp_cec_set_edid(struct drm_dp_aux *aux,
				       const struct edid *edid)
{
}

static inline void drm_dp_cec_unset_edid(struct drm_dp_aux *aux)
{
}

#endif

/**
 * struct drm_dp_phy_test_params - DP Phy Compliance parameters
 * @link_rate: Requested Link rate from DPCD 0x219
 * @num_lanes: Number of lanes requested by sing through DPCD 0x220
 * @phy_pattern: DP Phy test pattern from DPCD 0x248
 * @hbr2_reset: DP HBR2_COMPLIANCE_SCRAMBLER_RESET from DCPD 0x24A and 0x24B
 * @custom80: DP Test_80BIT_CUSTOM_PATTERN from DPCDs 0x250 through 0x259
 * @enhanced_frame_cap: flag for enhanced frame capability.
 */
struct drm_dp_phy_test_params {
	int link_rate;
	u8 num_lanes;
	u8 phy_pattern;
	u8 hbr2_reset[2];
	u8 custom80[10];
	bool enhanced_frame_cap;
};

int drm_dp_get_phy_test_pattern(struct drm_dp_aux *aux,
				struct drm_dp_phy_test_params *data);
int drm_dp_set_phy_test_pattern(struct drm_dp_aux *aux,
				struct drm_dp_phy_test_params *data, u8 dp_rev);
int drm_dp_get_pcon_max_frl_bw(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
			       const u8 port_cap[4]);
int drm_dp_pcon_frl_prepare(struct drm_dp_aux *aux, bool enable_frl_ready_hpd);
bool drm_dp_pcon_is_frl_ready(struct drm_dp_aux *aux);
int drm_dp_pcon_frl_configure_1(struct drm_dp_aux *aux, int max_frl_gbps,
				bool concurrent_mode);
int drm_dp_pcon_frl_configure_2(struct drm_dp_aux *aux, int max_frl_mask,
				bool extended_train_mode);
int drm_dp_pcon_reset_frl_config(struct drm_dp_aux *aux);
int drm_dp_pcon_frl_enable(struct drm_dp_aux *aux);

bool drm_dp_pcon_hdmi_link_active(struct drm_dp_aux *aux);
int drm_dp_pcon_hdmi_link_mode(struct drm_dp_aux *aux, u8 *frl_trained_mask);
void drm_dp_pcon_hdmi_frl_link_error_count(struct drm_dp_aux *aux,
					   struct drm_connector *connector);
bool drm_dp_pcon_enc_is_dsc_1_2(const u8 pcon_dsc_dpcd[DP_PCON_DSC_ENCODER_CAP_SIZE]);
int drm_dp_pcon_dsc_max_slices(const u8 pcon_dsc_dpcd[DP_PCON_DSC_ENCODER_CAP_SIZE]);
int drm_dp_pcon_dsc_max_slice_width(const u8 pcon_dsc_dpcd[DP_PCON_DSC_ENCODER_CAP_SIZE]);
int drm_dp_pcon_dsc_bpp_incr(const u8 pcon_dsc_dpcd[DP_PCON_DSC_ENCODER_CAP_SIZE]);
int drm_dp_pcon_pps_default(struct drm_dp_aux *aux);
int drm_dp_pcon_pps_override_buf(struct drm_dp_aux *aux, u8 pps_buf[128]);
int drm_dp_pcon_pps_override_param(struct drm_dp_aux *aux, u8 pps_param[6]);
bool drm_dp_downstream_rgb_to_ycbcr_conversion(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
					       const u8 port_cap[4], u8 color_spc);
int drm_dp_pcon_convert_rgb_to_ycbcr(struct drm_dp_aux *aux, u8 color_spc);

#endif /* _DRM_DP_HELPER_H_ */