summaryrefslogtreecommitdiffstats
path: root/sound/pci/hda/hda_intel.c
blob: 0310193ea1bd4dd59beda03b250109aea56497dd (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
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *
 *  hda_intel.c - Implementation of primary alsa driver code base
 *                for Intel HD Audio.
 *
 *  Copyright(c) 2004 Intel Corporation. All rights reserved.
 *
 *  Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
 *                     PeiSen Hou <pshou@realtek.com.tw>
 *
 *  CONTACTS:
 *
 *  Matt Jared		matt.jared@intel.com
 *  Andy Kopp		andy.kopp@intel.com
 *  Dan Kogan		dan.d.kogan@intel.com
 *
 *  CHANGES:
 *
 *  2004.12.01	Major rewrite by tiwai, merged the work of pshou
 */

#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/dma-mapping.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/mutex.h>
#include <linux/io.h>
#include <linux/pm_runtime.h>
#include <linux/clocksource.h>
#include <linux/time.h>
#include <linux/completion.h>
#include <linux/acpi.h>

#ifdef CONFIG_X86
/* for snoop control */
#include <asm/pgtable.h>
#include <asm/set_memory.h>
#include <asm/cpufeature.h>
#endif
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/hdaudio.h>
#include <sound/hda_i915.h>
#include <sound/intel-dsp-config.h>
#include <linux/vgaarb.h>
#include <linux/vga_switcheroo.h>
#include <linux/firmware.h>
#include <sound/hda_codec.h>
#include "hda_controller.h"
#include "hda_intel.h"

#define CREATE_TRACE_POINTS
#include "hda_intel_trace.h"

/* position fix mode */
enum {
	POS_FIX_AUTO,
	POS_FIX_LPIB,
	POS_FIX_POSBUF,
	POS_FIX_VIACOMBO,
	POS_FIX_COMBO,
	POS_FIX_SKL,
	POS_FIX_FIFO,
};

/* Defines for ATI HD Audio support in SB450 south bridge */
#define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR   0x42
#define ATI_SB450_HDAUDIO_ENABLE_SNOOP      0x02

/* Defines for Nvidia HDA support */
#define NVIDIA_HDA_TRANSREG_ADDR      0x4e
#define NVIDIA_HDA_ENABLE_COHBITS     0x0f
#define NVIDIA_HDA_ISTRM_COH          0x4d
#define NVIDIA_HDA_OSTRM_COH          0x4c
#define NVIDIA_HDA_ENABLE_COHBIT      0x01

/* Defines for Intel SCH HDA snoop control */
#define INTEL_HDA_CGCTL	 0x48
#define INTEL_HDA_CGCTL_MISCBDCGE        (0x1 << 6)
#define INTEL_SCH_HDA_DEVC      0x78
#define INTEL_SCH_HDA_DEVC_NOSNOOP       (0x1<<11)

/* Define VIA HD Audio Device ID*/
#define VIA_HDAC_DEVICE_ID		0x3288

/* max number of SDs */
/* ICH, ATI and VIA have 4 playback and 4 capture */
#define ICH6_NUM_CAPTURE	4
#define ICH6_NUM_PLAYBACK	4

/* ULI has 6 playback and 5 capture */
#define ULI_NUM_CAPTURE		5
#define ULI_NUM_PLAYBACK	6

/* ATI HDMI may have up to 8 playbacks and 0 capture */
#define ATIHDMI_NUM_CAPTURE	0
#define ATIHDMI_NUM_PLAYBACK	8

/* TERA has 4 playback and 3 capture */
#define TERA_NUM_CAPTURE	3
#define TERA_NUM_PLAYBACK	4


static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
static char *model[SNDRV_CARDS];
static int position_fix[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
static int probe_only[SNDRV_CARDS];
static int jackpoll_ms[SNDRV_CARDS];
static int single_cmd = -1;
static int enable_msi = -1;
#ifdef CONFIG_SND_HDA_PATCH_LOADER
static char *patch[SNDRV_CARDS];
#endif
#ifdef CONFIG_SND_HDA_INPUT_BEEP
static bool beep_mode[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] =
					CONFIG_SND_HDA_INPUT_BEEP_MODE};
#endif
static bool dmic_detect = 1;

module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
module_param_array(model, charp, NULL, 0444);
MODULE_PARM_DESC(model, "Use the given board model.");
module_param_array(position_fix, int, NULL, 0444);
MODULE_PARM_DESC(position_fix, "DMA pointer read method."
		 "(-1 = system default, 0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO, 4 = COMBO, 5 = SKL+, 6 = FIFO).");
module_param_array(bdl_pos_adj, int, NULL, 0644);
MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset.");
module_param_array(probe_mask, int, NULL, 0444);
MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
module_param_array(probe_only, int, NULL, 0444);
MODULE_PARM_DESC(probe_only, "Only probing and no codec initialization.");
module_param_array(jackpoll_ms, int, NULL, 0444);
MODULE_PARM_DESC(jackpoll_ms, "Ms between polling for jack events (default = 0, using unsol events only)");
module_param(single_cmd, bint, 0444);
MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
		 "(for debugging only).");
module_param(enable_msi, bint, 0444);
MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
#ifdef CONFIG_SND_HDA_PATCH_LOADER
module_param_array(patch, charp, NULL, 0444);
MODULE_PARM_DESC(patch, "Patch file for Intel HD audio interface.");
#endif
#ifdef CONFIG_SND_HDA_INPUT_BEEP
module_param_array(beep_mode, bool, NULL, 0444);
MODULE_PARM_DESC(beep_mode, "Select HDA Beep registration mode "
			    "(0=off, 1=on) (default=1).");
#endif
module_param(dmic_detect, bool, 0444);
MODULE_PARM_DESC(dmic_detect, "Allow DSP driver selection (bypass this driver) "
			     "(0=off, 1=on) (default=1); "
		 "deprecated, use snd-intel-dspcfg.dsp_driver option instead");

#ifdef CONFIG_PM
static int param_set_xint(const char *val, const struct kernel_param *kp);
static const struct kernel_param_ops param_ops_xint = {
	.set = param_set_xint,
	.get = param_get_int,
};
#define param_check_xint param_check_int

static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
module_param(power_save, xint, 0644);
MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
		 "(in second, 0 = disable).");

static bool pm_blacklist = true;
module_param(pm_blacklist, bool, 0644);
MODULE_PARM_DESC(pm_blacklist, "Enable power-management blacklist");

/* reset the HD-audio controller in power save mode.
 * this may give more power-saving, but will take longer time to
 * wake up.
 */
static bool power_save_controller = 1;
module_param(power_save_controller, bool, 0644);
MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
#else
#define power_save	0
#endif /* CONFIG_PM */

static int align_buffer_size = -1;
module_param(align_buffer_size, bint, 0644);
MODULE_PARM_DESC(align_buffer_size,
		"Force buffer and period sizes to be multiple of 128 bytes.");

#ifdef CONFIG_X86
static int hda_snoop = -1;
module_param_named(snoop, hda_snoop, bint, 0444);
MODULE_PARM_DESC(snoop, "Enable/disable snooping");
#else
#define hda_snoop		true
#endif


MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
			 "{Intel, ICH6M},"
			 "{Intel, ICH7},"
			 "{Intel, ESB2},"
			 "{Intel, ICH8},"
			 "{Intel, ICH9},"
			 "{Intel, ICH10},"
			 "{Intel, PCH},"
			 "{Intel, CPT},"
			 "{Intel, PPT},"
			 "{Intel, LPT},"
			 "{Intel, LPT_LP},"
			 "{Intel, WPT_LP},"
			 "{Intel, SPT},"
			 "{Intel, SPT_LP},"
			 "{Intel, HPT},"
			 "{Intel, PBG},"
			 "{Intel, SCH},"
			 "{ATI, SB450},"
			 "{ATI, SB600},"
			 "{ATI, RS600},"
			 "{ATI, RS690},"
			 "{ATI, RS780},"
			 "{ATI, R600},"
			 "{ATI, RV630},"
			 "{ATI, RV610},"
			 "{ATI, RV670},"
			 "{ATI, RV635},"
			 "{ATI, RV620},"
			 "{ATI, RV770},"
			 "{VIA, VT8251},"
			 "{VIA, VT8237A},"
			 "{SiS, SIS966},"
			 "{ULI, M5461}}");
MODULE_DESCRIPTION("Intel HDA driver");

#if defined(CONFIG_PM) && defined(CONFIG_VGA_SWITCHEROO)
#if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)
#define SUPPORT_VGA_SWITCHEROO
#endif
#endif


/*
 */

/* driver types */
enum {
	AZX_DRIVER_ICH,
	AZX_DRIVER_PCH,
	AZX_DRIVER_SCH,
	AZX_DRIVER_SKL,
	AZX_DRIVER_HDMI,
	AZX_DRIVER_ATI,
	AZX_DRIVER_ATIHDMI,
	AZX_DRIVER_ATIHDMI_NS,
	AZX_DRIVER_VIA,
	AZX_DRIVER_SIS,
	AZX_DRIVER_ULI,
	AZX_DRIVER_NVIDIA,
	AZX_DRIVER_TERA,
	AZX_DRIVER_CTX,
	AZX_DRIVER_CTHDA,
	AZX_DRIVER_CMEDIA,
	AZX_DRIVER_ZHAOXIN,
	AZX_DRIVER_GENERIC,
	AZX_NUM_DRIVERS, /* keep this as last entry */
};

#define azx_get_snoop_type(chip) \
	(((chip)->driver_caps & AZX_DCAPS_SNOOP_MASK) >> 10)
#define AZX_DCAPS_SNOOP_TYPE(type) ((AZX_SNOOP_TYPE_ ## type) << 10)

/* quirks for old Intel chipsets */
#define AZX_DCAPS_INTEL_ICH \
	(AZX_DCAPS_OLD_SSYNC | AZX_DCAPS_NO_ALIGN_BUFSIZE |\
	 AZX_DCAPS_SYNC_WRITE)

/* quirks for Intel PCH */
#define AZX_DCAPS_INTEL_PCH_BASE \
	(AZX_DCAPS_NO_ALIGN_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY |\
	 AZX_DCAPS_SNOOP_TYPE(SCH) | AZX_DCAPS_SYNC_WRITE)

/* PCH up to IVB; no runtime PM; bind with i915 gfx */
#define AZX_DCAPS_INTEL_PCH_NOPM \
	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)

/* PCH for HSW/BDW; with runtime PM */
/* no i915 binding for this as HSW/BDW has another controller for HDMI */
#define AZX_DCAPS_INTEL_PCH \
	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME)

/* HSW HDMI */
#define AZX_DCAPS_INTEL_HASWELL \
	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_COUNT_LPIB_DELAY |\
	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
	 AZX_DCAPS_SNOOP_TYPE(SCH) | AZX_DCAPS_SYNC_WRITE)

/* Broadwell HDMI can't use position buffer reliably, force to use LPIB */
#define AZX_DCAPS_INTEL_BROADWELL \
	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_POSFIX_LPIB |\
	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
	 AZX_DCAPS_SNOOP_TYPE(SCH) | AZX_DCAPS_SYNC_WRITE)

#define AZX_DCAPS_INTEL_BAYTRAIL \
	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)

#define AZX_DCAPS_INTEL_BRASWELL \
	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
	 AZX_DCAPS_I915_COMPONENT)

#define AZX_DCAPS_INTEL_SKYLAKE \
	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
	 AZX_DCAPS_SYNC_WRITE |\
	 AZX_DCAPS_SEPARATE_STREAM_TAG | AZX_DCAPS_I915_COMPONENT)

#define AZX_DCAPS_INTEL_BROXTON		AZX_DCAPS_INTEL_SKYLAKE

/* quirks for ATI SB / AMD Hudson */
#define AZX_DCAPS_PRESET_ATI_SB \
	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB |\
	 AZX_DCAPS_SNOOP_TYPE(ATI))

/* quirks for ATI/AMD HDMI */
#define AZX_DCAPS_PRESET_ATI_HDMI \
	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB|\
	 AZX_DCAPS_NO_MSI64)

/* quirks for ATI HDMI with snoop off */
#define AZX_DCAPS_PRESET_ATI_HDMI_NS \
	(AZX_DCAPS_PRESET_ATI_HDMI | AZX_DCAPS_SNOOP_OFF)

/* quirks for AMD SB */
#define AZX_DCAPS_PRESET_AMD_SB \
	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_AMD_WORKAROUND |\
	 AZX_DCAPS_SNOOP_TYPE(ATI) | AZX_DCAPS_PM_RUNTIME)

/* quirks for Nvidia */
#define AZX_DCAPS_PRESET_NVIDIA \
	(AZX_DCAPS_NO_MSI | AZX_DCAPS_CORBRP_SELF_CLEAR |\
	 AZX_DCAPS_SNOOP_TYPE(NVIDIA))

#define AZX_DCAPS_PRESET_CTHDA \
	(AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB |\
	 AZX_DCAPS_NO_64BIT |\
	 AZX_DCAPS_4K_BDLE_BOUNDARY | AZX_DCAPS_SNOOP_OFF)

/*
 * vga_switcheroo support
 */
#ifdef SUPPORT_VGA_SWITCHEROO
#define use_vga_switcheroo(chip)	((chip)->use_vga_switcheroo)
#define needs_eld_notify_link(chip)	((chip)->bus.keep_power)
#else
#define use_vga_switcheroo(chip)	0
#define needs_eld_notify_link(chip)	false
#endif

#define CONTROLLER_IN_GPU(pci) (((pci)->device == 0x0a0c) || \
					((pci)->device == 0x0c0c) || \
					((pci)->device == 0x0d0c) || \
					((pci)->device == 0x160c))

#define IS_BXT(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x5a98)

static const char * const driver_short_names[] = {
	[AZX_DRIVER_ICH] = "HDA Intel",
	[AZX_DRIVER_PCH] = "HDA Intel PCH",
	[AZX_DRIVER_SCH] = "HDA Intel MID",
	[AZX_DRIVER_SKL] = "HDA Intel PCH", /* kept old name for compatibility */
	[AZX_DRIVER_HDMI] = "HDA Intel HDMI",
	[AZX_DRIVER_ATI] = "HDA ATI SB",
	[AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
	[AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
	[AZX_DRIVER_VIA] = "HDA VIA VT82xx",
	[AZX_DRIVER_SIS] = "HDA SIS966",
	[AZX_DRIVER_ULI] = "HDA ULI M5461",
	[AZX_DRIVER_NVIDIA] = "HDA NVidia",
	[AZX_DRIVER_TERA] = "HDA Teradici", 
	[AZX_DRIVER_CTX] = "HDA Creative", 
	[AZX_DRIVER_CTHDA] = "HDA Creative",
	[AZX_DRIVER_CMEDIA] = "HDA C-Media",
	[AZX_DRIVER_ZHAOXIN] = "HDA Zhaoxin",
	[AZX_DRIVER_GENERIC] = "HD-Audio Generic",
};

static int azx_acquire_irq(struct azx *chip, int do_disconnect);
static void set_default_power_save(struct azx *chip);

/*
 * initialize the PCI registers
 */
/* update bits in a PCI register byte */
static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
			    unsigned char mask, unsigned char val)
{
	unsigned char data;

	pci_read_config_byte(pci, reg, &data);
	data &= ~mask;
	data |= (val & mask);
	pci_write_config_byte(pci, reg, data);
}

static void azx_init_pci(struct azx *chip)
{
	int snoop_type = azx_get_snoop_type(chip);

	/* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
	 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
	 * Ensuring these bits are 0 clears playback static on some HD Audio
	 * codecs.
	 * The PCI register TCSEL is defined in the Intel manuals.
	 */
	if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
		dev_dbg(chip->card->dev, "Clearing TCSEL\n");
		update_pci_byte(chip->pci, AZX_PCIREG_TCSEL, 0x07, 0);
	}

	/* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
	 * we need to enable snoop.
	 */
	if (snoop_type == AZX_SNOOP_TYPE_ATI) {
		dev_dbg(chip->card->dev, "Setting ATI snoop: %d\n",
			azx_snoop(chip));
		update_pci_byte(chip->pci,
				ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
				azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
	}

	/* For NVIDIA HDA, enable snoop */
	if (snoop_type == AZX_SNOOP_TYPE_NVIDIA) {
		dev_dbg(chip->card->dev, "Setting Nvidia snoop: %d\n",
			azx_snoop(chip));
		update_pci_byte(chip->pci,
				NVIDIA_HDA_TRANSREG_ADDR,
				0x0f, NVIDIA_HDA_ENABLE_COHBITS);
		update_pci_byte(chip->pci,
				NVIDIA_HDA_ISTRM_COH,
				0x01, NVIDIA_HDA_ENABLE_COHBIT);
		update_pci_byte(chip->pci,
				NVIDIA_HDA_OSTRM_COH,
				0x01, NVIDIA_HDA_ENABLE_COHBIT);
	}

	/* Enable SCH/PCH snoop if needed */
	if (snoop_type == AZX_SNOOP_TYPE_SCH) {
		unsigned short snoop;
		pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
		if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
		    (azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
			snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
			if (!azx_snoop(chip))
				snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
			pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
			pci_read_config_word(chip->pci,
				INTEL_SCH_HDA_DEVC, &snoop);
		}
		dev_dbg(chip->card->dev, "SCH snoop: %s\n",
			(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) ?
			"Disabled" : "Enabled");
        }
}

/*
 * In BXT-P A0, HD-Audio DMA requests is later than expected,
 * and makes an audio stream sensitive to system latencies when
 * 24/32 bits are playing.
 * Adjusting threshold of DMA fifo to force the DMA request
 * sooner to improve latency tolerance at the expense of power.
 */
static void bxt_reduce_dma_latency(struct azx *chip)
{
	u32 val;

	val = azx_readl(chip, VS_EM4L);
	val &= (0x3 << 20);
	azx_writel(chip, VS_EM4L, val);
}

/*
 * ML_LCAP bits:
 *  bit 0: 6 MHz Supported
 *  bit 1: 12 MHz Supported
 *  bit 2: 24 MHz Supported
 *  bit 3: 48 MHz Supported
 *  bit 4: 96 MHz Supported
 *  bit 5: 192 MHz Supported
 */
static int intel_get_lctl_scf(struct azx *chip)
{
	struct hdac_bus *bus = azx_bus(chip);
	static const int preferred_bits[] = { 2, 3, 1, 4, 5 };
	u32 val, t;
	int i;

	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCAP);

	for (i = 0; i < ARRAY_SIZE(preferred_bits); i++) {
		t = preferred_bits[i];
		if (val & (1 << t))
			return t;
	}

	dev_warn(chip->card->dev, "set audio clock frequency to 6MHz");
	return 0;
}

static int intel_ml_lctl_set_power(struct azx *chip, int state)
{
	struct hdac_bus *bus = azx_bus(chip);
	u32 val;
	int timeout;

	/*
	 * the codecs are sharing the first link setting by default
	 * If other links are enabled for stream, they need similar fix
	 */
	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
	val &= ~AZX_MLCTL_SPA;
	val |= state << AZX_MLCTL_SPA_SHIFT;
	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
	/* wait for CPA */
	timeout = 50;
	while (timeout) {
		if (((readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL)) &
		    AZX_MLCTL_CPA) == (state << AZX_MLCTL_CPA_SHIFT))
			return 0;
		timeout--;
		udelay(10);
	}

	return -1;
}

static void intel_init_lctl(struct azx *chip)
{
	struct hdac_bus *bus = azx_bus(chip);
	u32 val;
	int ret;

	/* 0. check lctl register value is correct or not */
	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
	/* if SCF is already set, let's use it */
	if ((val & ML_LCTL_SCF_MASK) != 0)
		return;

	/*
	 * Before operating on SPA, CPA must match SPA.
	 * Any deviation may result in undefined behavior.
	 */
	if (((val & AZX_MLCTL_SPA) >> AZX_MLCTL_SPA_SHIFT) !=
		((val & AZX_MLCTL_CPA) >> AZX_MLCTL_CPA_SHIFT))
		return;

	/* 1. turn link down: set SPA to 0 and wait CPA to 0 */
	ret = intel_ml_lctl_set_power(chip, 0);
	udelay(100);
	if (ret)
		goto set_spa;

	/* 2. update SCF to select a properly audio clock*/
	val &= ~ML_LCTL_SCF_MASK;
	val |= intel_get_lctl_scf(chip);
	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);

set_spa:
	/* 4. turn link up: set SPA to 1 and wait CPA to 1 */
	intel_ml_lctl_set_power(chip, 1);
	udelay(100);
}

static void hda_intel_init_chip(struct azx *chip, bool full_reset)
{
	struct hdac_bus *bus = azx_bus(chip);
	struct pci_dev *pci = chip->pci;
	u32 val;

	snd_hdac_set_codec_wakeup(bus, true);
	if (chip->driver_type == AZX_DRIVER_SKL) {
		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
		val = val & ~INTEL_HDA_CGCTL_MISCBDCGE;
		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
	}
	azx_init_chip(chip, full_reset);
	if (chip->driver_type == AZX_DRIVER_SKL) {
		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
		val = val | INTEL_HDA_CGCTL_MISCBDCGE;
		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
	}

	snd_hdac_set_codec_wakeup(bus, false);

	/* reduce dma latency to avoid noise */
	if (IS_BXT(pci))
		bxt_reduce_dma_latency(chip);

	if (bus->mlcap != NULL)
		intel_init_lctl(chip);
}

/* calculate runtime delay from LPIB */
static int azx_get_delay_from_lpib(struct azx *chip, struct azx_dev *azx_dev,
				   unsigned int pos)
{
	struct snd_pcm_substream *substream = azx_dev->core.substream;
	int stream = substream->stream;
	unsigned int lpib_pos = azx_get_pos_lpib(chip, azx_dev);
	int delay;

	if (stream == SNDRV_PCM_STREAM_PLAYBACK)
		delay = pos - lpib_pos;
	else
		delay = lpib_pos - pos;
	if (delay < 0) {
		if (delay >= azx_dev->core.delay_negative_threshold)
			delay = 0;
		else
			delay += azx_dev->core.bufsize;
	}

	if (delay >= azx_dev->core.period_bytes) {
		dev_info(chip->card->dev,
			 "Unstable LPIB (%d >= %d); disabling LPIB delay counting\n",
			 delay, azx_dev->core.period_bytes);
		delay = 0;
		chip->driver_caps &= ~AZX_DCAPS_COUNT_LPIB_DELAY;
		chip->get_delay[stream] = NULL;
	}

	return bytes_to_frames(substream->runtime, delay);
}

static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);

/* called from IRQ */
static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
{
	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
	int ok;

	ok = azx_position_ok(chip, azx_dev);
	if (ok == 1) {
		azx_dev->irq_pending = 0;
		return ok;
	} else if (ok == 0) {
		/* bogus IRQ, process it later */
		azx_dev->irq_pending = 1;
		schedule_work(&hda->irq_pending_work);
	}
	return 0;
}

#define display_power(chip, enable) \
	snd_hdac_display_power(azx_bus(chip), HDA_CODEC_IDX_CONTROLLER, enable)

/*
 * Check whether the current DMA position is acceptable for updating
 * periods.  Returns non-zero if it's OK.
 *
 * Many HD-audio controllers appear pretty inaccurate about
 * the update-IRQ timing.  The IRQ is issued before actually the
 * data is processed.  So, we need to process it afterwords in a
 * workqueue.
 */
static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
{
	struct snd_pcm_substream *substream = azx_dev->core.substream;
	int stream = substream->stream;
	u32 wallclk;
	unsigned int pos;

	wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk;
	if (wallclk < (azx_dev->core.period_wallclk * 2) / 3)
		return -1;	/* bogus (too early) interrupt */

	if (chip->get_position[stream])
		pos = chip->get_position[stream](chip, azx_dev);
	else { /* use the position buffer as default */
		pos = azx_get_pos_posbuf(chip, azx_dev);
		if (!pos || pos == (u32)-1) {
			dev_info(chip->card->dev,
				 "Invalid position buffer, using LPIB read method instead.\n");
			chip->get_position[stream] = azx_get_pos_lpib;
			if (chip->get_position[0] == azx_get_pos_lpib &&
			    chip->get_position[1] == azx_get_pos_lpib)
				azx_bus(chip)->use_posbuf = false;
			pos = azx_get_pos_lpib(chip, azx_dev);
			chip->get_delay[stream] = NULL;
		} else {
			chip->get_position[stream] = azx_get_pos_posbuf;
			if (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)
				chip->get_delay[stream] = azx_get_delay_from_lpib;
		}
	}

	if (pos >= azx_dev->core.bufsize)
		pos = 0;

	if (WARN_ONCE(!azx_dev->core.period_bytes,
		      "hda-intel: zero azx_dev->period_bytes"))
		return -1; /* this shouldn't happen! */
	if (wallclk < (azx_dev->core.period_wallclk * 5) / 4 &&
	    pos % azx_dev->core.period_bytes > azx_dev->core.period_bytes / 2)
		/* NG - it's below the first next period boundary */
		return chip->bdl_pos_adj ? 0 : -1;
	azx_dev->core.start_wallclk += wallclk;
	return 1; /* OK, it's fine */
}

/*
 * The work for pending PCM period updates.
 */
static void azx_irq_pending_work(struct work_struct *work)
{
	struct hda_intel *hda = container_of(work, struct hda_intel, irq_pending_work);
	struct azx *chip = &hda->chip;
	struct hdac_bus *bus = azx_bus(chip);
	struct hdac_stream *s;
	int pending, ok;

	if (!hda->irq_pending_warned) {
		dev_info(chip->card->dev,
			 "IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
			 chip->card->number);
		hda->irq_pending_warned = 1;
	}

	for (;;) {
		pending = 0;
		spin_lock_irq(&bus->reg_lock);
		list_for_each_entry(s, &bus->stream_list, list) {
			struct azx_dev *azx_dev = stream_to_azx_dev(s);
			if (!azx_dev->irq_pending ||
			    !s->substream ||
			    !s->running)
				continue;
			ok = azx_position_ok(chip, azx_dev);
			if (ok > 0) {
				azx_dev->irq_pending = 0;
				spin_unlock(&bus->reg_lock);
				snd_pcm_period_elapsed(s->substream);
				spin_lock(&bus->reg_lock);
			} else if (ok < 0) {
				pending = 0;	/* too early */
			} else
				pending++;
		}
		spin_unlock_irq(&bus->reg_lock);
		if (!pending)
			return;
		msleep(1);
	}
}

/* clear irq_pending flags and assure no on-going workq */
static void azx_clear_irq_pending(struct azx *chip)
{
	struct hdac_bus *bus = azx_bus(chip);
	struct hdac_stream *s;

	spin_lock_irq(&bus->reg_lock);
	list_for_each_entry(s, &bus->stream_list, list) {
		struct azx_dev *azx_dev = stream_to_azx_dev(s);
		azx_dev->irq_pending = 0;
	}
	spin_unlock_irq(&bus->reg_lock);
}

static int azx_acquire_irq(struct azx *chip, int do_disconnect)
{
	struct hdac_bus *bus = azx_bus(chip);

	if (request_irq(chip->pci->irq, azx_interrupt,
			chip->msi ? 0 : IRQF_SHARED,
			chip->card->irq_descr, chip)) {
		dev_err(chip->card->dev,
			"unable to grab IRQ %d, disabling device\n",
			chip->pci->irq);
		if (do_disconnect)
			snd_card_disconnect(chip->card);
		return -1;
	}
	bus->irq = chip->pci->irq;
	chip->card->sync_irq = bus->irq;
	pci_intx(chip->pci, !chip->msi);
	return 0;
}

/* get the current DMA position with correction on VIA chips */
static unsigned int azx_via_get_position(struct azx *chip,
					 struct azx_dev *azx_dev)
{
	unsigned int link_pos, mini_pos, bound_pos;
	unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
	unsigned int fifo_size;

	link_pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
		/* Playback, no problem using link position */
		return link_pos;
	}

	/* Capture */
	/* For new chipset,
	 * use mod to get the DMA position just like old chipset
	 */
	mod_dma_pos = le32_to_cpu(*azx_dev->core.posbuf);
	mod_dma_pos %= azx_dev->core.period_bytes;

	fifo_size = azx_stream(azx_dev)->fifo_size - 1;

	if (azx_dev->insufficient) {
		/* Link position never gather than FIFO size */
		if (link_pos <= fifo_size)
			return 0;

		azx_dev->insufficient = 0;
	}

	if (link_pos <= fifo_size)
		mini_pos = azx_dev->core.bufsize + link_pos - fifo_size;
	else
		mini_pos = link_pos - fifo_size;

	/* Find nearest previous boudary */
	mod_mini_pos = mini_pos % azx_dev->core.period_bytes;
	mod_link_pos = link_pos % azx_dev->core.period_bytes;
	if (mod_link_pos >= fifo_size)
		bound_pos = link_pos - mod_link_pos;
	else if (mod_dma_pos >= mod_mini_pos)
		bound_pos = mini_pos - mod_mini_pos;
	else {
		bound_pos = mini_pos - mod_mini_pos + azx_dev->core.period_bytes;
		if (bound_pos >= azx_dev->core.bufsize)
			bound_pos = 0;
	}

	/* Calculate real DMA position we want */
	return bound_pos + mod_dma_pos;
}

#define AMD_FIFO_SIZE	32

/* get the current DMA position with FIFO size correction */
static unsigned int azx_get_pos_fifo(struct azx *chip, struct azx_dev *azx_dev)
{
	struct snd_pcm_substream *substream = azx_dev->core.substream;
	struct snd_pcm_runtime *runtime = substream->runtime;
	unsigned int pos, delay;

	pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
	if (!runtime)
		return pos;

	runtime->delay = AMD_FIFO_SIZE;
	delay = frames_to_bytes(runtime, AMD_FIFO_SIZE);
	if (azx_dev->insufficient) {
		if (pos < delay) {
			delay = pos;
			runtime->delay = bytes_to_frames(runtime, pos);
		} else {
			azx_dev->insufficient = 0;
		}
	}

	/* correct the DMA position for capture stream */
	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
		if (pos < delay)
			pos += azx_dev->core.bufsize;
		pos -= delay;
	}

	return pos;
}

static int azx_get_delay_from_fifo(struct azx *chip, struct azx_dev *azx_dev,
				   unsigned int pos)
{
	struct snd_pcm_substream *substream = azx_dev->core.substream;

	/* just read back the calculated value in the above */
	return substream->runtime->delay;
}

static unsigned int azx_skl_get_dpib_pos(struct azx *chip,
					 struct azx_dev *azx_dev)
{
	return _snd_hdac_chip_readl(azx_bus(chip),
				    AZX_REG_VS_SDXDPIB_XBASE +
				    (AZX_REG_VS_SDXDPIB_XINTERVAL *
				     azx_dev->core.index));
}

/* get the current DMA position with correction on SKL+ chips */
static unsigned int azx_get_pos_skl(struct azx *chip, struct azx_dev *azx_dev)
{
	/* DPIB register gives a more accurate position for playback */
	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
		return azx_skl_get_dpib_pos(chip, azx_dev);

	/* For capture, we need to read posbuf, but it requires a delay
	 * for the possible boundary overlap; the read of DPIB fetches the
	 * actual posbuf
	 */
	udelay(20);
	azx_skl_get_dpib_pos(chip, azx_dev);
	return azx_get_pos_posbuf(chip, azx_dev);
}

#ifdef CONFIG_PM
static DEFINE_MUTEX(card_list_lock);
static LIST_HEAD(card_list);

static void azx_add_card_list(struct azx *chip)
{
	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
	mutex_lock(&card_list_lock);
	list_add(&hda->list, &card_list);
	mutex_unlock(&card_list_lock);
}

static void azx_del_card_list(struct azx *chip)
{
	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
	mutex_lock(&card_list_lock);
	list_del_init(&hda->list);
	mutex_unlock(&card_list_lock);
}

/* trigger power-save check at writing parameter */
static int param_set_xint(const char *val, const struct kernel_param *kp)
{
	struct hda_intel *hda;
	struct azx *chip;
	int prev = power_save;
	int ret = param_set_int(val, kp);

	if (ret || prev == power_save)
		return ret;

	mutex_lock(&card_list_lock);
	list_for_each_entry(hda, &card_list, list) {
		chip = &hda->chip;
		if (!hda->probe_continued || chip->disabled)
			continue;
		snd_hda_set_power_save(&chip->bus, power_save * 1000);
	}
	mutex_unlock(&card_list_lock);
	return 0;
}

/*
 * power management
 */
static bool azx_is_pm_ready(struct snd_card *card)
{
	struct azx *chip;
	struct hda_intel *hda;

	if (!card)
		return false;
	chip = card->private_data;
	hda = container_of(chip, struct hda_intel, chip);
	if (chip->disabled || hda->init_failed || !chip->running)
		return false;
	return true;
}

static void __azx_runtime_suspend(struct azx *chip)
{
	azx_stop_chip(chip);
	azx_enter_link_reset(chip);
	azx_clear_irq_pending(chip);
	display_power(chip, false);
}

static void __azx_runtime_resume(struct azx *chip, bool from_rt)
{
	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
	struct hdac_bus *bus = azx_bus(chip);
	struct hda_codec *codec;
	int status;

	display_power(chip, true);
	if (hda->need_i915_power)
		snd_hdac_i915_set_bclk(bus);

	/* Read STATESTS before controller reset */
	status = azx_readw(chip, STATESTS);

	azx_init_pci(chip);
	hda_intel_init_chip(chip, true);

	if (status && from_rt) {
		list_for_each_codec(codec, &chip->bus)
			if (!codec->relaxed_resume &&
			    (status & (1 << codec->addr)))
				schedule_delayed_work(&codec->jackpoll_work,
						      codec->jackpoll_interval);
	}

	/* power down again for link-controlled chips */
	if (!hda->need_i915_power)
		display_power(chip, false);
}

#ifdef CONFIG_PM_SLEEP
static int azx_suspend(struct device *dev)
{
	struct snd_card *card = dev_get_drvdata(dev);
	struct azx *chip;
	struct hdac_bus *bus;

	if (!azx_is_pm_ready(card))
		return 0;

	chip = card->private_data;
	bus = azx_bus(chip);
	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
	pm_runtime_force_suspend(dev);
	if (bus->irq >= 0) {
		free_irq(bus->irq, chip);
		bus->irq = -1;
		chip->card->sync_irq = -1;
	}

	if (chip->msi)
		pci_disable_msi(chip->pci);

	trace_azx_suspend(chip);
	return 0;
}

static int azx_resume(struct device *dev)
{
	struct snd_card *card = dev_get_drvdata(dev);
	struct azx *chip;

	if (!azx_is_pm_ready(card))
		return 0;

	chip = card->private_data;
	if (chip->msi)
		if (pci_enable_msi(chip->pci) < 0)
			chip->msi = 0;
	if (azx_acquire_irq(chip, 1) < 0)
		return -EIO;

	pm_runtime_force_resume(dev);
	snd_power_change_state(card, SNDRV_CTL_POWER_D0);

	trace_azx_resume(chip);
	return 0;
}

/* put codec down to D3 at hibernation for Intel SKL+;
 * otherwise BIOS may still access the codec and screw up the driver
 */
static int azx_freeze_noirq(struct device *dev)
{
	struct snd_card *card = dev_get_drvdata(dev);
	struct azx *chip = card->private_data;
	struct pci_dev *pci = to_pci_dev(dev);

	if (!azx_is_pm_ready(card))
		return 0;
	if (chip->driver_type == AZX_DRIVER_SKL)
		pci_set_power_state(pci, PCI_D3hot);

	return 0;
}

static int azx_thaw_noirq(struct device *dev)
{
	struct snd_card *card = dev_get_drvdata(dev);
	struct azx *chip = card->private_data;
	struct pci_dev *pci = to_pci_dev(dev);

	if (!azx_is_pm_ready(card))
		return 0;
	if (chip->driver_type == AZX_DRIVER_SKL)
		pci_set_power_state(pci, PCI_D0);

	return 0;
}
#endif /* CONFIG_PM_SLEEP */

static int azx_runtime_suspend(struct device *dev)
{
	struct snd_card *card = dev_get_drvdata(dev);
	struct azx *chip;

	if (!azx_is_pm_ready(card))
		return 0;
	chip = card->private_data;

	/* enable controller wake up event */
	if (snd_power_get_state(card) == SNDRV_CTL_POWER_D0) {
		azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) |
			   STATESTS_INT_MASK);
	}

	__azx_runtime_suspend(chip);
	trace_azx_runtime_suspend(chip);
	return 0;
}

static int azx_runtime_resume(struct device *dev)
{
	struct snd_card *card = dev_get_drvdata(dev);
	struct azx *chip;
	bool from_rt = snd_power_get_state(card) == SNDRV_CTL_POWER_D0;

	if (!azx_is_pm_ready(card))
		return 0;
	chip = card->private_data;
	__azx_runtime_resume(chip, from_rt);

	/* disable controller Wake Up event*/
	if (from_rt) {
		azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) &
			   ~STATESTS_INT_MASK);
	}

	trace_azx_runtime_resume(chip);
	return 0;
}

static int azx_runtime_idle(struct device *dev)
{
	struct snd_card *card = dev_get_drvdata(dev);
	struct azx *chip;
	struct hda_intel *hda;

	if (!card)
		return 0;

	chip = card->private_data;
	hda = container_of(chip, struct hda_intel, chip);
	if (chip->disabled || hda->init_failed)
		return 0;

	if (!power_save_controller || !azx_has_pm_runtime(chip) ||
	    azx_bus(chip)->codec_powered || !chip->running)
		return -EBUSY;

	/* ELD notification gets broken when HD-audio bus is off */
	if (needs_eld_notify_link(chip))
		return -EBUSY;

	return 0;
}

static const struct dev_pm_ops azx_pm = {
	SET_SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume)
#ifdef CONFIG_PM_SLEEP
	.freeze_noirq = azx_freeze_noirq,
	.thaw_noirq = azx_thaw_noirq,
#endif
	SET_RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle)
};

#define AZX_PM_OPS	&azx_pm
#else
#define azx_add_card_list(chip) /* NOP */
#define azx_del_card_list(chip) /* NOP */
#define AZX_PM_OPS	NULL
#endif /* CONFIG_PM */


static int azx_probe_continue(struct azx *chip);

#ifdef SUPPORT_VGA_SWITCHEROO
static struct pci_dev *get_bound_vga(struct pci_dev *pci);

static void azx_vs_set_state(struct pci_dev *pci,
			     enum vga_switcheroo_state state)
{
	struct snd_card *card = pci_get_drvdata(pci);
	struct azx *chip = card->private_data;
	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
	struct hda_codec *codec;
	bool disabled;

	wait_for_completion(&hda->probe_wait);
	if (hda->init_failed)
		return;

	disabled = (state == VGA_SWITCHEROO_OFF);
	if (chip->disabled == disabled)
		return;

	if (!hda->probe_continued) {
		chip->disabled = disabled;
		if (!disabled) {
			dev_info(chip->card->dev,
				 "Start delayed initialization\n");
			if (azx_probe_continue(chip) < 0)
				dev_err(chip->card->dev, "initialization error\n");
		}
	} else {
		dev_info(chip->card->dev, "%s via vga_switcheroo\n",
			 disabled ? "Disabling" : "Enabling");
		if (disabled) {
			list_for_each_codec(codec, &chip->bus) {
				pm_runtime_suspend(hda_codec_dev(codec));
				pm_runtime_disable(hda_codec_dev(codec));
			}
			pm_runtime_suspend(card->dev);
			pm_runtime_disable(card->dev);
			/* when we get suspended by vga_switcheroo we end up in D3cold,
			 * however we have no ACPI handle, so pci/acpi can't put us there,
			 * put ourselves there */
			pci->current_state = PCI_D3cold;
			chip->disabled = true;
			if (snd_hda_lock_devices(&chip->bus))
				dev_warn(chip->card->dev,
					 "Cannot lock devices!\n");
		} else {
			snd_hda_unlock_devices(&chip->bus);
			chip->disabled = false;
			pm_runtime_enable(card->dev);
			list_for_each_codec(codec, &chip->bus) {
				pm_runtime_enable(hda_codec_dev(codec));
				pm_runtime_resume(hda_codec_dev(codec));
			}
		}
	}
}

static bool azx_vs_can_switch(struct pci_dev *pci)
{
	struct snd_card *card = pci_get_drvdata(pci);
	struct azx *chip = card->private_data;
	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);

	wait_for_completion(&hda->probe_wait);
	if (hda->init_failed)
		return false;
	if (chip->disabled || !hda->probe_continued)
		return true;
	if (snd_hda_lock_devices(&chip->bus))
		return false;
	snd_hda_unlock_devices(&chip->bus);
	return true;
}

/*
 * The discrete GPU cannot power down unless the HDA controller runtime
 * suspends, so activate runtime PM on codecs even if power_save == 0.
 */
static void setup_vga_switcheroo_runtime_pm(struct azx *chip)
{
	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
	struct hda_codec *codec;

	if (hda->use_vga_switcheroo && !needs_eld_notify_link(chip)) {
		list_for_each_codec(codec, &chip->bus)
			codec->auto_runtime_pm = 1;
		/* reset the power save setup */
		if (chip->running)
			set_default_power_save(chip);
	}
}

static void azx_vs_gpu_bound(struct pci_dev *pci,
			     enum vga_switcheroo_client_id client_id)
{
	struct snd_card *card = pci_get_drvdata(pci);
	struct azx *chip = card->private_data;

	if (client_id == VGA_SWITCHEROO_DIS)
		chip->bus.keep_power = 0;
	setup_vga_switcheroo_runtime_pm(chip);
}

static void init_vga_switcheroo(struct azx *chip)
{
	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
	struct pci_dev *p = get_bound_vga(chip->pci);
	struct pci_dev *parent;
	if (p) {
		dev_info(chip->card->dev,
			 "Handle vga_switcheroo audio client\n");
		hda->use_vga_switcheroo = 1;

		/* cleared in either gpu_bound op or codec probe, or when its
		 * upstream port has _PR3 (i.e. dGPU).
		 */
		parent = pci_upstream_bridge(p);
		chip->bus.keep_power = parent ? !pci_pr3_present(parent) : 1;
		chip->driver_caps |= AZX_DCAPS_PM_RUNTIME;
		pci_dev_put(p);
	}
}

static const struct vga_switcheroo_client_ops azx_vs_ops = {
	.set_gpu_state = azx_vs_set_state,
	.can_switch = azx_vs_can_switch,
	.gpu_bound = azx_vs_gpu_bound,
};

static int register_vga_switcheroo(struct azx *chip)
{
	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
	struct pci_dev *p;
	int err;

	if (!hda->use_vga_switcheroo)
		return 0;

	p = get_bound_vga(chip->pci);
	err = vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops, p);
	pci_dev_put(p);

	if (err < 0)
		return err;
	hda->vga_switcheroo_registered = 1;

	return 0;
}
#else
#define init_vga_switcheroo(chip)		/* NOP */
#define register_vga_switcheroo(chip)		0
#define check_hdmi_disabled(pci)	false
#define setup_vga_switcheroo_runtime_pm(chip)	/* NOP */
#endif /* SUPPORT_VGA_SWITCHER */

/*
 * destructor
 */
static void azx_free(struct azx *chip)
{
	struct pci_dev *pci = chip->pci;
	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
	struct hdac_bus *bus = azx_bus(chip);

	if (hda->freed)
		return;

	if (azx_has_pm_runtime(chip) && chip->running)
		pm_runtime_get_noresume(&pci->dev);
	chip->running = 0;

	azx_del_card_list(chip);

	hda->init_failed = 1; /* to be sure */
	complete_all(&hda->probe_wait);

	if (use_vga_switcheroo(hda)) {
		if (chip->disabled && hda->probe_continued)
			snd_hda_unlock_devices(&chip->bus);
		if (hda->vga_switcheroo_registered)
			vga_switcheroo_unregister_client(chip->pci);
	}

	if (bus->chip_init) {
		azx_clear_irq_pending(chip);
		azx_stop_all_streams(chip);
		azx_stop_chip(chip);
	}

	if (bus->irq >= 0)
		free_irq(bus->irq, (void*)chip);
	if (chip->msi)
		pci_disable_msi(chip->pci);
	iounmap(bus->remap_addr);

	azx_free_stream_pages(chip);
	azx_free_streams(chip);
	snd_hdac_bus_exit(bus);

	if (chip->region_requested)
		pci_release_regions(chip->pci);

	pci_disable_device(chip->pci);
#ifdef CONFIG_SND_HDA_PATCH_LOADER
	release_firmware(chip->fw);
#endif
	display_power(chip, false);

	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT)
		snd_hdac_i915_exit(bus);

	hda->freed = 1;
}

static int azx_dev_disconnect(struct snd_device *device)
{
	struct azx *chip = device->device_data;
	struct hdac_bus *bus = azx_bus(chip);

	chip->bus.shutdown = 1;
	cancel_work_sync(&bus->unsol_work);

	return 0;
}

static int azx_dev_free(struct snd_device *device)
{
	azx_free(device->device_data);
	return 0;
}

#ifdef SUPPORT_VGA_SWITCHEROO
#ifdef CONFIG_ACPI
/* ATPX is in the integrated GPU's namespace */
static bool atpx_present(void)
{
	struct pci_dev *pdev = NULL;
	acpi_handle dhandle, atpx_handle;
	acpi_status status;

	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) {
		dhandle = ACPI_HANDLE(&pdev->dev);
		if (dhandle) {
			status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
			if (!ACPI_FAILURE(status)) {
				pci_dev_put(pdev);
				return true;
			}
		}
	}
	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_OTHER << 8, pdev)) != NULL) {
		dhandle = ACPI_HANDLE(&pdev->dev);
		if (dhandle) {
			status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
			if (!ACPI_FAILURE(status)) {
				pci_dev_put(pdev);
				return true;
			}
		}
	}
	return false;
}
#else
static bool atpx_present(void)
{
	return false;
}
#endif

/*
 * Check of disabled HDMI controller by vga_switcheroo
 */
static struct pci_dev *get_bound_vga(struct pci_dev *pci)
{
	struct pci_dev *p;

	/* check only discrete GPU */
	switch (pci->vendor) {
	case PCI_VENDOR_ID_ATI:
	case PCI_VENDOR_ID_AMD:
		if (pci->devfn == 1) {
			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
							pci->bus->number, 0);
			if (p) {
				/* ATPX is in the integrated GPU's ACPI namespace
				 * rather than the dGPU's namespace. However,
				 * the dGPU is the one who is involved in
				 * vgaswitcheroo.
				 */
				if (((p->class >> 16) == PCI_BASE_CLASS_DISPLAY) &&
				    atpx_present())
					return p;
				pci_dev_put(p);
			}
		}
		break;
	case PCI_VENDOR_ID_NVIDIA:
		if (pci->devfn == 1) {
			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
							pci->bus->number, 0);
			if (p) {
				if ((p->class >> 16) == PCI_BASE_CLASS_DISPLAY)
					return p;
				pci_dev_put(p);
			}
		}
		break;
	}
	return NULL;
}

static bool check_hdmi_disabled(struct pci_dev *pci)
{
	bool vga_inactive = false;
	struct pci_dev *p = get_bound_vga(pci);

	if (p) {
		if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
			vga_inactive = true;
		pci_dev_put(p);
	}
	return vga_inactive;
}
#endif /* SUPPORT_VGA_SWITCHEROO */

/*
 * white/black-listing for position_fix
 */
static const struct snd_pci_quirk position_fix_list[] = {
	SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
	SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
	SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
	SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
	SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
	SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
	SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
	SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
	SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
	SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
	SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
	SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
	SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
	SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
	{}
};

static int check_position_fix(struct azx *chip, int fix)
{
	const struct snd_pci_quirk *q;

	switch (fix) {
	case POS_FIX_AUTO:
	case POS_FIX_LPIB:
	case POS_FIX_POSBUF:
	case POS_FIX_VIACOMBO:
	case POS_FIX_COMBO:
	case POS_FIX_SKL:
	case POS_FIX_FIFO:
		return fix;
	}

	q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
	if (q) {
		dev_info(chip->card->dev,
			 "position_fix set to %d for device %04x:%04x\n",
			 q->value, q->subvendor, q->subdevice);
		return q->value;
	}

	/* Check VIA/ATI HD Audio Controller exist */
	if (chip->driver_type == AZX_DRIVER_VIA) {
		dev_dbg(chip->card->dev, "Using VIACOMBO position fix\n");
		return POS_FIX_VIACOMBO;
	}
	if (chip->driver_caps & AZX_DCAPS_AMD_WORKAROUND) {
		dev_dbg(chip->card->dev, "Using FIFO position fix\n");
		return POS_FIX_FIFO;
	}
	if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
		dev_dbg(chip->card->dev, "Using LPIB position fix\n");
		return POS_FIX_LPIB;
	}
	if (chip->driver_type == AZX_DRIVER_SKL) {
		dev_dbg(chip->card->dev, "Using SKL position fix\n");
		return POS_FIX_SKL;
	}
	return POS_FIX_AUTO;
}

static void assign_position_fix(struct azx *chip, int fix)
{
	static const azx_get_pos_callback_t callbacks[] = {
		[POS_FIX_AUTO] = NULL,
		[POS_FIX_LPIB] = azx_get_pos_lpib,
		[POS_FIX_POSBUF] = azx_get_pos_posbuf,
		[POS_FIX_VIACOMBO] = azx_via_get_position,
		[POS_FIX_COMBO] = azx_get_pos_lpib,
		[POS_FIX_SKL] = azx_get_pos_skl,
		[POS_FIX_FIFO] = azx_get_pos_fifo,
	};

	chip->get_position[0] = chip->get_position[1] = callbacks[fix];

	/* combo mode uses LPIB only for playback */
	if (fix == POS_FIX_COMBO)
		chip->get_position[1] = NULL;

	if ((fix == POS_FIX_POSBUF || fix == POS_FIX_SKL) &&
	    (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) {
		chip->get_delay[0] = chip->get_delay[1] =
			azx_get_delay_from_lpib;
	}

	if (fix == POS_FIX_FIFO)
		chip->get_delay[0] = chip->get_delay[1] =
			azx_get_delay_from_fifo;
}

/*
 * black-lists for probe_mask
 */
static const struct snd_pci_quirk probe_mask_list[] = {
	/* Thinkpad often breaks the controller communication when accessing
	 * to the non-working (or non-existing) modem codec slot.
	 */
	SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
	SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
	SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
	/* broken BIOS */
	SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
	/* including bogus ALC268 in slot#2 that conflicts with ALC888 */
	SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
	/* forced codec slots */
	SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
	SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
	/* WinFast VP200 H (Teradici) user reported broken communication */
	SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
	{}
};

#define AZX_FORCE_CODEC_MASK	0x100

static void check_probe_mask(struct azx *chip, int dev)
{
	const struct snd_pci_quirk *q;

	chip->codec_probe_mask = probe_mask[dev];
	if (chip->codec_probe_mask == -1) {
		q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
		if (q) {
			dev_info(chip->card->dev,
				 "probe_mask set to 0x%x for device %04x:%04x\n",
				 q->value, q->subvendor, q->subdevice);
			chip->codec_probe_mask = q->value;
		}
	}

	/* check forced option */
	if (chip->codec_probe_mask != -1 &&
	    (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
		azx_bus(chip)->codec_mask = chip->codec_probe_mask & 0xff;
		dev_info(chip->card->dev, "codec_mask forced to 0x%x\n",
			 (int)azx_bus(chip)->codec_mask);
	}
}

/*
 * white/black-list for enable_msi
 */
static const struct snd_pci_quirk msi_black_list[] = {
	SND_PCI_QUIRK(0x103c, 0x2191, "HP", 0), /* AMD Hudson */
	SND_PCI_QUIRK(0x103c, 0x2192, "HP", 0), /* AMD Hudson */
	SND_PCI_QUIRK(0x103c, 0x21f7, "HP", 0), /* AMD Hudson */
	SND_PCI_QUIRK(0x103c, 0x21fa, "HP", 0), /* AMD Hudson */
	SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
	SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
	SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
	SND_PCI_QUIRK(0x1179, 0xfb44, "Toshiba Satellite C870", 0), /* AMD Hudson */
	SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
	SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
	{}
};

static void check_msi(struct azx *chip)
{
	const struct snd_pci_quirk *q;

	if (enable_msi >= 0) {
		chip->msi = !!enable_msi;
		return;
	}
	chip->msi = 1;	/* enable MSI as default */
	q = snd_pci_quirk_lookup(chip->pci, msi_black_list);
	if (q) {
		dev_info(chip->card->dev,
			 "msi for device %04x:%04x set to %d\n",
			 q->subvendor, q->subdevice, q->value);
		chip->msi = q->value;
		return;
	}

	/* NVidia chipsets seem to cause troubles with MSI */
	if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
		dev_info(chip->card->dev, "Disabling MSI\n");
		chip->msi = 0;
	}
}

/* check the snoop mode availability */
static void azx_check_snoop_available(struct azx *chip)
{
	int snoop = hda_snoop;

	if (snoop >= 0) {
		dev_info(chip->card->dev, "Force to %s mode by module option\n",
			 snoop ? "snoop" : "non-snoop");
		chip->snoop = snoop;
		chip->uc_buffer = !snoop;
		return;
	}

	snoop = true;
	if (azx_get_snoop_type(chip) == AZX_SNOOP_TYPE_NONE &&
	    chip->driver_type == AZX_DRIVER_VIA) {
		/* force to non-snoop mode for a new VIA controller
		 * when BIOS is set
		 */
		u8 val;
		pci_read_config_byte(chip->pci, 0x42, &val);
		if (!(val & 0x80) && (chip->pci->revision == 0x30 ||
				      chip->pci->revision == 0x20))
			snoop = false;
	}

	if (chip->driver_caps & AZX_DCAPS_SNOOP_OFF)
		snoop = false;

	chip->snoop = snoop;
	if (!snoop) {
		dev_info(chip->card->dev, "Force to non-snoop mode\n");
		/* C-Media requires non-cached pages only for CORB/RIRB */
		if (chip->driver_type != AZX_DRIVER_CMEDIA)
			chip->uc_buffer = true;
	}
}

static void azx_probe_work(struct work_struct *work)
{
	struct hda_intel *hda = container_of(work, struct hda_intel, probe_work);
	azx_probe_continue(&hda->chip);
}

static int default_bdl_pos_adj(struct azx *chip)
{
	/* some exceptions: Atoms seem problematic with value 1 */
	if (chip->pci->vendor == PCI_VENDOR_ID_INTEL) {
		switch (chip->pci->device) {
		case 0x0f04: /* Baytrail */
		case 0x2284: /* Braswell */
			return 32;
		}
	}

	switch (chip->driver_type) {
	case AZX_DRIVER_ICH:
	case AZX_DRIVER_PCH:
		return 1;
	default:
		return 32;
	}
}

/*
 * constructor
 */
static const struct hda_controller_ops pci_hda_ops;

static int azx_create(struct snd_card *card, struct pci_dev *pci,
		      int dev, unsigned int driver_caps,
		      struct azx **rchip)
{
	static const struct snd_device_ops ops = {
		.dev_disconnect = azx_dev_disconnect,
		.dev_free = azx_dev_free,
	};
	struct hda_intel *hda;
	struct azx *chip;
	int err;

	*rchip = NULL;

	err = pci_enable_device(pci);
	if (err < 0)
		return err;

	hda = devm_kzalloc(&pci->dev, sizeof(*hda), GFP_KERNEL);
	if (!hda) {
		pci_disable_device(pci);
		return -ENOMEM;
	}

	chip = &hda->chip;
	mutex_init(&chip->open_mutex);
	chip->card = card;
	chip->pci = pci;
	chip->ops = &pci_hda_ops;
	chip->driver_caps = driver_caps;
	chip->driver_type = driver_caps & 0xff;
	check_msi(chip);
	chip->dev_index = dev;
	if (jackpoll_ms[dev] >= 50 && jackpoll_ms[dev] <= 60000)
		chip->jackpoll_interval = msecs_to_jiffies(jackpoll_ms[dev]);
	INIT_LIST_HEAD(&chip->pcm_list);
	INIT_WORK(&hda->irq_pending_work, azx_irq_pending_work);
	INIT_LIST_HEAD(&hda->list);
	init_vga_switcheroo(chip);
	init_completion(&hda->probe_wait);

	assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));

	check_probe_mask(chip, dev);

	if (single_cmd < 0) /* allow fallback to single_cmd at errors */
		chip->fallback_to_single_cmd = 1;
	else /* explicitly set to single_cmd or not */
		chip->single_cmd = single_cmd;

	azx_check_snoop_available(chip);

	if (bdl_pos_adj[dev] < 0)
		chip->bdl_pos_adj = default_bdl_pos_adj(chip);
	else
		chip->bdl_pos_adj = bdl_pos_adj[dev];

	err = azx_bus_init(chip, model[dev]);
	if (err < 0) {
		pci_disable_device(pci);
		return err;
	}

	/* use the non-cached pages in non-snoop mode */
	if (!azx_snoop(chip))
		azx_bus(chip)->dma_type = SNDRV_DMA_TYPE_DEV_UC;

	if (chip->driver_type == AZX_DRIVER_NVIDIA) {
		dev_dbg(chip->card->dev, "Enable delay in RIRB handling\n");
		chip->bus.core.needs_damn_long_delay = 1;
	}

	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
	if (err < 0) {
		dev_err(card->dev, "Error creating device [card]!\n");
		azx_free(chip);
		return err;
	}

	/* continue probing in work context as may trigger request module */
	INIT_WORK(&hda->probe_work, azx_probe_work);

	*rchip = chip;

	return 0;
}

static int azx_first_init(struct azx *chip)
{
	int dev = chip->dev_index;
	struct pci_dev *pci = chip->pci;
	struct snd_card *card = chip->card;
	struct hdac_bus *bus = azx_bus(chip);
	int err;
	unsigned short gcap;
	unsigned int dma_bits = 64;

#if BITS_PER_LONG != 64
	/* Fix up base address on ULI M5461 */
	if (chip->driver_type == AZX_DRIVER_ULI) {
		u16 tmp3;
		pci_read_config_word(pci, 0x40, &tmp3);
		pci_write_config_word(pci, 0x40, tmp3 | 0x10);
		pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
	}
#endif

	err = pci_request_regions(pci, "ICH HD audio");
	if (err < 0)
		return err;
	chip->region_requested = 1;

	bus->addr = pci_resource_start(pci, 0);
	bus->remap_addr = pci_ioremap_bar(pci, 0);
	if (bus->remap_addr == NULL) {
		dev_err(card->dev, "ioremap error\n");
		return -ENXIO;
	}

	if (chip->driver_type == AZX_DRIVER_SKL)
		snd_hdac_bus_parse_capabilities(bus);

	/*
	 * Some Intel CPUs has always running timer (ART) feature and
	 * controller may have Global time sync reporting capability, so
	 * check both of these before declaring synchronized time reporting
	 * capability SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME
	 */
	chip->gts_present = false;

#ifdef CONFIG_X86
	if (bus->ppcap && boot_cpu_has(X86_FEATURE_ART))
		chip->gts_present = true;
#endif

	if (chip->msi) {
		if (chip->driver_caps & AZX_DCAPS_NO_MSI64) {
			dev_dbg(card->dev, "Disabling 64bit MSI\n");
			pci->no_64bit_msi = true;
		}
		if (pci_enable_msi(pci) < 0)
			chip->msi = 0;
	}

	pci_set_master(pci);

	gcap = azx_readw(chip, GCAP);
	dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);

	/* AMD devices support 40 or 48bit DMA, take the safe one */
	if (chip->pci->vendor == PCI_VENDOR_ID_AMD)
		dma_bits = 40;

	/* disable SB600 64bit support for safety */
	if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
		struct pci_dev *p_smbus;
		dma_bits = 40;
		p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
					 PCI_DEVICE_ID_ATI_SBX00_SMBUS,
					 NULL);
		if (p_smbus) {
			if (p_smbus->revision < 0x30)
				gcap &= ~AZX_GCAP_64OK;
			pci_dev_put(p_smbus);
		}
	}

	/* NVidia hardware normally only supports up to 40 bits of DMA */
	if (chip->pci->vendor == PCI_VENDOR_ID_NVIDIA)
		dma_bits = 40;

	/* disable 64bit DMA address on some devices */
	if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
		dev_dbg(card->dev, "Disabling 64bit DMA\n");
		gcap &= ~AZX_GCAP_64OK;
	}

	/* disable buffer size rounding to 128-byte multiples if supported */
	if (align_buffer_size >= 0)
		chip->align_buffer_size = !!align_buffer_size;
	else {
		if (chip->driver_caps & AZX_DCAPS_NO_ALIGN_BUFSIZE)
			chip->align_buffer_size = 0;
		else
			chip->align_buffer_size = 1;
	}

	/* allow 64bit DMA address if supported by H/W */
	if (!(gcap & AZX_GCAP_64OK))
		dma_bits = 32;
	if (!dma_set_mask(&pci->dev, DMA_BIT_MASK(dma_bits))) {
		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(dma_bits));
	} else {
		dma_set_mask(&pci->dev, DMA_BIT_MASK(32));
		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32));
	}

	/* read number of streams from GCAP register instead of using
	 * hardcoded value
	 */
	chip->capture_streams = (gcap >> 8) & 0x0f;
	chip->playback_streams = (gcap >> 12) & 0x0f;
	if (!chip->playback_streams && !chip->capture_streams) {
		/* gcap didn't give any info, switching to old method */

		switch (chip->driver_type) {
		case AZX_DRIVER_ULI:
			chip->playback_streams = ULI_NUM_PLAYBACK;
			chip->capture_streams = ULI_NUM_CAPTURE;
			break;
		case AZX_DRIVER_ATIHDMI:
		case AZX_DRIVER_ATIHDMI_NS:
			chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
			chip->capture_streams = ATIHDMI_NUM_CAPTURE;
			break;
		case AZX_DRIVER_GENERIC:
		default:
			chip->playback_streams = ICH6_NUM_PLAYBACK;
			chip->capture_streams = ICH6_NUM_CAPTURE;
			break;
		}
	}
	chip->capture_index_offset = 0;
	chip->playback_index_offset = chip->capture_streams;
	chip->num_streams = chip->playback_streams + chip->capture_streams;

	/* sanity check for the SDxCTL.STRM field overflow */
	if (chip->num_streams > 15 &&
	    (chip->driver_caps & AZX_DCAPS_SEPARATE_STREAM_TAG) == 0) {
		dev_warn(chip->card->dev, "number of I/O streams is %d, "
			 "forcing separate stream tags", chip->num_streams);
		chip->driver_caps |= AZX_DCAPS_SEPARATE_STREAM_TAG;
	}

	/* initialize streams */
	err = azx_init_streams(chip);
	if (err < 0)
		return err;

	err = azx_alloc_stream_pages(chip);
	if (err < 0)
		return err;

	/* initialize chip */
	azx_init_pci(chip);

	snd_hdac_i915_set_bclk(bus);

	hda_intel_init_chip(chip, (probe_only[dev] & 2) == 0);

	/* codec detection */
	if (!azx_bus(chip)->codec_mask) {
		dev_err(card->dev, "no codecs found!\n");
		/* keep running the rest for the runtime PM */
	}

	if (azx_acquire_irq(chip, 0) < 0)
		return -EBUSY;

	strcpy(card->driver, "HDA-Intel");
	strlcpy(card->shortname, driver_short_names[chip->driver_type],
		sizeof(card->shortname));
	snprintf(card->longname, sizeof(card->longname),
		 "%s at 0x%lx irq %i",
		 card->shortname, bus->addr, bus->irq);

	return 0;
}

#ifdef CONFIG_SND_HDA_PATCH_LOADER
/* callback from request_firmware_nowait() */
static void azx_firmware_cb(const struct firmware *fw, void *context)
{
	struct snd_card *card = context;
	struct azx *chip = card->private_data;

	if (fw)
		chip->fw = fw;
	else
		dev_err(card->dev, "Cannot load firmware, continue without patching\n");
	if (!chip->disabled) {
		/* continue probing */
		azx_probe_continue(chip);
	}
}
#endif

static int disable_msi_reset_irq(struct azx *chip)
{
	struct hdac_bus *bus = azx_bus(chip);
	int err;

	free_irq(bus->irq, chip);
	bus->irq = -1;
	chip->card->sync_irq = -1;
	pci_disable_msi(chip->pci);
	chip->msi = 0;
	err = azx_acquire_irq(chip, 1);
	if (err < 0)
		return err;

	return 0;
}

static void pcm_mmap_prepare(struct snd_pcm_substream *substream,
			     struct vm_area_struct *area)
{
#ifdef CONFIG_X86
	struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
	struct azx *chip = apcm->chip;
	if (chip->uc_buffer)
		area->vm_page_prot = pgprot_writecombine(area->vm_page_prot);
#endif
}

/* Blacklist for skipping the whole probe:
 * some HD-audio PCI entries are exposed without any codecs, and such devices
 * should be ignored from the beginning.
 */
static const struct pci_device_id driver_blacklist[] = {
	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1043, 0x874f) }, /* ASUS ROG Zenith II / Strix */
	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb59) }, /* MSI TRX40 Creator */
	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb60) }, /* MSI TRX40 */
	{}
};

static const struct hda_controller_ops pci_hda_ops = {
	.disable_msi_reset_irq = disable_msi_reset_irq,
	.pcm_mmap_prepare = pcm_mmap_prepare,
	.position_check = azx_position_check,
};

static int azx_probe(struct pci_dev *pci,
		     const struct pci_device_id *pci_id)
{
	static int dev;
	struct snd_card *card;
	struct hda_intel *hda;
	struct azx *chip;
	bool schedule_probe;
	int err;

	if (pci_match_id(driver_blacklist, pci)) {
		dev_info(&pci->dev, "Skipping the blacklisted device\n");
		return -ENODEV;
	}

	if (dev >= SNDRV_CARDS)
		return -ENODEV;
	if (!enable[dev]) {
		dev++;
		return -ENOENT;
	}

	/*
	 * stop probe if another Intel's DSP driver should be activated
	 */
	if (dmic_detect) {
		err = snd_intel_dsp_driver_probe(pci);
		if (err != SND_INTEL_DSP_DRIVER_ANY &&
		    err != SND_INTEL_DSP_DRIVER_LEGACY)
			return -ENODEV;
	} else {
		dev_warn(&pci->dev, "dmic_detect option is deprecated, pass snd-intel-dspcfg.dsp_driver=1 option instead\n");
	}

	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
			   0, &card);
	if (err < 0) {
		dev_err(&pci->dev, "Error creating card!\n");
		return err;
	}

	err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
	if (err < 0)
		goto out_free;
	card->private_data = chip;
	hda = container_of(chip, struct hda_intel, chip);

	pci_set_drvdata(pci, card);

	err = register_vga_switcheroo(chip);
	if (err < 0) {
		dev_err(card->dev, "Error registering vga_switcheroo client\n");
		goto out_free;
	}

	if (check_hdmi_disabled(pci)) {
		dev_info(card->dev, "VGA controller is disabled\n");
		dev_info(card->dev, "Delaying initialization\n");
		chip->disabled = true;
	}

	schedule_probe = !chip->disabled;

#ifdef CONFIG_SND_HDA_PATCH_LOADER
	if (patch[dev] && *patch[dev]) {
		dev_info(card->dev, "Applying patch firmware '%s'\n",
			 patch[dev]);
		err = request_firmware_nowait(THIS_MODULE, true, patch[dev],
					      &pci->dev, GFP_KERNEL, card,
					      azx_firmware_cb);
		if (err < 0)
			goto out_free;
		schedule_probe = false; /* continued in azx_firmware_cb() */
	}
#endif /* CONFIG_SND_HDA_PATCH_LOADER */

#ifndef CONFIG_SND_HDA_I915
	if (CONTROLLER_IN_GPU(pci))
		dev_err(card->dev, "Haswell/Broadwell HDMI/DP must build in CONFIG_SND_HDA_I915\n");
#endif

	if (schedule_probe)
		schedule_work(&hda->probe_work);

	dev++;
	if (chip->disabled)
		complete_all(&hda->probe_wait);
	return 0;

out_free:
	snd_card_free(card);
	return err;
}

#ifdef CONFIG_PM
/* On some boards setting power_save to a non 0 value leads to clicking /
 * popping sounds when ever we enter/leave powersaving mode. Ideally we would
 * figure out how to avoid these sounds, but that is not always feasible.
 * So we keep a list of devices where we disable powersaving as its known
 * to causes problems on these devices.
 */
static const struct snd_pci_quirk power_save_blacklist[] = {
	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
	SND_PCI_QUIRK(0x1849, 0xc892, "Asrock B85M-ITX", 0),
	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
	SND_PCI_QUIRK(0x1849, 0x0397, "Asrock N68C-S UCC", 0),
	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
	SND_PCI_QUIRK(0x1849, 0x7662, "Asrock H81M-HDS", 0),
	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
	SND_PCI_QUIRK(0x1043, 0x8733, "Asus Prime X370-Pro", 0),
	/* https://bugzilla.redhat.com/show_bug.cgi?id=1581607 */
	SND_PCI_QUIRK(0x1558, 0x3501, "Clevo W35xSS_370SS", 0),
	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
	SND_PCI_QUIRK(0x1558, 0x6504, "Clevo W65_67SB", 0),
	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
	SND_PCI_QUIRK(0x1028, 0x0497, "Dell Precision T3600", 0),
	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
	/* Note the P55A-UD3 and Z87-D3HP share the subsys id for the HDA dev */
	SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte P55A-UD3 / Z87-D3HP", 0),
	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
	SND_PCI_QUIRK(0x8086, 0x2040, "Intel DZ77BH-55K", 0),
	/* https://bugzilla.kernel.org/show_bug.cgi?id=199607 */
	SND_PCI_QUIRK(0x8086, 0x2057, "Intel NUC5i7RYB", 0),
	/* https://bugs.launchpad.net/bugs/1821663 */
	SND_PCI_QUIRK(0x8086, 0x2064, "Intel SDP 8086:2064", 0),
	/* https://bugzilla.redhat.com/show_bug.cgi?id=1520902 */
	SND_PCI_QUIRK(0x8086, 0x2068, "Intel NUC7i3BNB", 0),
	/* https://bugzilla.kernel.org/show_bug.cgi?id=198611 */
	SND_PCI_QUIRK(0x17aa, 0x2227, "Lenovo X1 Carbon 3rd Gen", 0),
	/* https://bugzilla.redhat.com/show_bug.cgi?id=1689623 */
	SND_PCI_QUIRK(0x17aa, 0x367b, "Lenovo IdeaCentre B550", 0),
	/* https://bugzilla.redhat.com/show_bug.cgi?id=1572975 */
	SND_PCI_QUIRK(0x17aa, 0x36a7, "Lenovo C50 All in one", 0),
	/* https://bugs.launchpad.net/bugs/1821663 */
	SND_PCI_QUIRK(0x1631, 0xe017, "Packard Bell NEC IMEDIA 5204", 0),
	{}
};
#endif /* CONFIG_PM */

static void set_default_power_save(struct azx *chip)
{
	int val = power_save;

#ifdef CONFIG_PM
	if (pm_blacklist) {
		const struct snd_pci_quirk *q;

		q = snd_pci_quirk_lookup(chip->pci, power_save_blacklist);
		if (q && val) {
			dev_info(chip->card->dev, "device %04x:%04x is on the power_save blacklist, forcing power_save to 0\n",
				 q->subvendor, q->subdevice);
			val = 0;
		}
	}
#endif /* CONFIG_PM */
	snd_hda_set_power_save(&chip->bus, val * 1000);
}

/* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
static const unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
	[AZX_DRIVER_NVIDIA] = 8,
	[AZX_DRIVER_TERA] = 1,
};

static int azx_probe_continue(struct azx *chip)
{
	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
	struct hdac_bus *bus = azx_bus(chip);
	struct pci_dev *pci = chip->pci;
	int dev = chip->dev_index;
	int err;

	to_hda_bus(bus)->bus_probing = 1;
	hda->probe_continued = 1;

	/* bind with i915 if needed */
	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT) {
		err = snd_hdac_i915_init(bus);
		if (err < 0) {
			/* if the controller is bound only with HDMI/DP
			 * (for HSW and BDW), we need to abort the probe;
			 * for other chips, still continue probing as other
			 * codecs can be on the same link.
			 */
			if (CONTROLLER_IN_GPU(pci)) {
				dev_err(chip->card->dev,
					"HSW/BDW HD-audio HDMI/DP requires binding with gfx driver\n");
				goto out_free;
			} else {
				/* don't bother any longer */
				chip->driver_caps &= ~AZX_DCAPS_I915_COMPONENT;
			}
		}

		/* HSW/BDW controllers need this power */
		if (CONTROLLER_IN_GPU(pci))
			hda->need_i915_power = 1;
	}

	/* Request display power well for the HDA controller or codec. For
	 * Haswell/Broadwell, both the display HDA controller and codec need
	 * this power. For other platforms, like Baytrail/Braswell, only the
	 * display codec needs the power and it can be released after probe.
	 */
	display_power(chip, true);

	err = azx_first_init(chip);
	if (err < 0)
		goto out_free;

#ifdef CONFIG_SND_HDA_INPUT_BEEP
	chip->beep_mode = beep_mode[dev];
#endif

	/* create codec instances */
	if (bus->codec_mask) {
		err = azx_probe_codecs(chip, azx_max_codecs[chip->driver_type]);
		if (err < 0)
			goto out_free;
	}

#ifdef CONFIG_SND_HDA_PATCH_LOADER
	if (chip->fw) {
		err = snd_hda_load_patch(&chip->bus, chip->fw->size,
					 chip->fw->data);
		if (err < 0)
			goto out_free;
#ifndef CONFIG_PM
		release_firmware(chip->fw); /* no longer needed */
		chip->fw = NULL;
#endif
	}
#endif
	if (bus->codec_mask && !(probe_only[dev] & 1)) {
		err = azx_codec_configure(chip);
		if (err < 0)
			goto out_free;
	}

	err = snd_card_register(chip->card);
	if (err < 0)
		goto out_free;

	setup_vga_switcheroo_runtime_pm(chip);

	chip->running = 1;
	azx_add_card_list(chip);

	set_default_power_save(chip);

	if (azx_has_pm_runtime(chip)) {
		pm_runtime_use_autosuspend(&pci->dev);
		pm_runtime_allow(&pci->dev);
		pm_runtime_put_autosuspend(&pci->dev);
	}

out_free:
	if (err < 0) {
		azx_free(chip);
		return err;
	}

	if (!hda->need_i915_power)
		display_power(chip, false);
	complete_all(&hda->probe_wait);
	to_hda_bus(bus)->bus_probing = 0;
	return 0;
}

static void azx_remove(struct pci_dev *pci)
{
	struct snd_card *card = pci_get_drvdata(pci);
	struct azx *chip;
	struct hda_intel *hda;

	if (card) {
		/* cancel the pending probing work */
		chip = card->private_data;
		hda = container_of(chip, struct hda_intel, chip);
		/* FIXME: below is an ugly workaround.
		 * Both device_release_driver() and driver_probe_device()
		 * take *both* the device's and its parent's lock before
		 * calling the remove() and probe() callbacks.  The codec
		 * probe takes the locks of both the codec itself and its
		 * parent, i.e. the PCI controller dev.  Meanwhile, when
		 * the PCI controller is unbound, it takes its lock, too
		 * ==> ouch, a deadlock!
		 * As a workaround, we unlock temporarily here the controller
		 * device during cancel_work_sync() call.
		 */
		device_unlock(&pci->dev);
		cancel_work_sync(&hda->probe_work);
		device_lock(&pci->dev);

		snd_card_free(card);
	}
}

static void azx_shutdown(struct pci_dev *pci)
{
	struct snd_card *card = pci_get_drvdata(pci);
	struct azx *chip;

	if (!card)
		return;
	chip = card->private_data;
	if (chip && chip->running)
		azx_stop_chip(chip);
}

/* PCI IDs */
static const struct pci_device_id azx_ids[] = {
	/* CPT */
	{ PCI_DEVICE(0x8086, 0x1c20),
	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
	/* PBG */
	{ PCI_DEVICE(0x8086, 0x1d20),
	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
	/* Panther Point */
	{ PCI_DEVICE(0x8086, 0x1e20),
	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
	/* Lynx Point */
	{ PCI_DEVICE(0x8086, 0x8c20),
	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
	/* 9 Series */
	{ PCI_DEVICE(0x8086, 0x8ca0),
	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
	/* Wellsburg */
	{ PCI_DEVICE(0x8086, 0x8d20),
	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
	{ PCI_DEVICE(0x8086, 0x8d21),
	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
	/* Lewisburg */
	{ PCI_DEVICE(0x8086, 0xa1f0),
	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
	{ PCI_DEVICE(0x8086, 0xa270),
	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
	/* Lynx Point-LP */
	{ PCI_DEVICE(0x8086, 0x9c20),
	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
	/* Lynx Point-LP */
	{ PCI_DEVICE(0x8086, 0x9c21),
	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
	/* Wildcat Point-LP */
	{ PCI_DEVICE(0x8086, 0x9ca0),
	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
	/* Sunrise Point */
	{ PCI_DEVICE(0x8086, 0xa170),
	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
	/* Sunrise Point-LP */
	{ PCI_DEVICE(0x8086, 0x9d70),
	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
	/* Kabylake */
	{ PCI_DEVICE(0x8086, 0xa171),
	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
	/* Kabylake-LP */
	{ PCI_DEVICE(0x8086, 0x9d71),
	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
	/* Kabylake-H */
	{ PCI_DEVICE(0x8086, 0xa2f0),
	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
	/* Coffelake */
	{ PCI_DEVICE(0x8086, 0xa348),
	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
	/* Cannonlake */
	{ PCI_DEVICE(0x8086, 0x9dc8),
	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
	/* CometLake-LP */
	{ PCI_DEVICE(0x8086, 0x02C8),
	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
	/* CometLake-H */
	{ PCI_DEVICE(0x8086, 0x06C8),
	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
	/* CometLake-S */
	{ PCI_DEVICE(0x8086, 0xa3f0),
	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
	/* Icelake */
	{ PCI_DEVICE(0x8086, 0x34c8),
	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
	/* Jasperlake */
	{ PCI_DEVICE(0x8086, 0x38c8),
	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
	{ PCI_DEVICE(0x8086, 0x4dc8),
	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
	/* Tigerlake */
	{ PCI_DEVICE(0x8086, 0xa0c8),
	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
	/* Elkhart Lake */
	{ PCI_DEVICE(0x8086, 0x4b55),
	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
	/* Broxton-P(Apollolake) */
	{ PCI_DEVICE(0x8086, 0x5a98),
	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
	/* Broxton-T */
	{ PCI_DEVICE(0x8086, 0x1a98),
	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
	/* Gemini-Lake */
	{ PCI_DEVICE(0x8086, 0x3198),
	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
	/* Haswell */
	{ PCI_DEVICE(0x8086, 0x0a0c),
	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
	{ PCI_DEVICE(0x8086, 0x0c0c),
	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
	{ PCI_DEVICE(0x8086, 0x0d0c),
	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
	/* Broadwell */
	{ PCI_DEVICE(0x8086, 0x160c),
	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_BROADWELL },
	/* 5 Series/3400 */
	{ PCI_DEVICE(0x8086, 0x3b56),
	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
	/* Poulsbo */
	{ PCI_DEVICE(0x8086, 0x811b),
	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
	/* Oaktrail */
	{ PCI_DEVICE(0x8086, 0x080a),
	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
	/* BayTrail */
	{ PCI_DEVICE(0x8086, 0x0f04),
	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BAYTRAIL },
	/* Braswell */
	{ PCI_DEVICE(0x8086, 0x2284),
	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BRASWELL },
	/* ICH6 */
	{ PCI_DEVICE(0x8086, 0x2668),
	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
	/* ICH7 */
	{ PCI_DEVICE(0x8086, 0x27d8),
	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
	/* ESB2 */
	{ PCI_DEVICE(0x8086, 0x269a),
	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
	/* ICH8 */
	{ PCI_DEVICE(0x8086, 0x284b),
	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
	/* ICH9 */
	{ PCI_DEVICE(0x8086, 0x293e),
	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
	/* ICH9 */
	{ PCI_DEVICE(0x8086, 0x293f),
	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
	/* ICH10 */
	{ PCI_DEVICE(0x8086, 0x3a3e),
	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
	/* ICH10 */
	{ PCI_DEVICE(0x8086, 0x3a6e),
	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
	/* Generic Intel */
	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
	  .class_mask = 0xffffff,
	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_NO_ALIGN_BUFSIZE },
	/* ATI SB 450/600/700/800/900 */
	{ PCI_DEVICE(0x1002, 0x437b),
	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
	{ PCI_DEVICE(0x1002, 0x4383),
	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
	/* AMD Hudson */
	{ PCI_DEVICE(0x1022, 0x780d),
	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
	/* AMD, X370 & co */
	{ PCI_DEVICE(0x1022, 0x1457),
	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
	/* AMD, X570 & co */
	{ PCI_DEVICE(0x1022, 0x1487),
	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
	/* AMD Stoney */
	{ PCI_DEVICE(0x1022, 0x157a),
	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB |
			 AZX_DCAPS_PM_RUNTIME },
	/* AMD Raven */
	{ PCI_DEVICE(0x1022, 0x15e3),
	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
	/* ATI HDMI */
	{ PCI_DEVICE(0x1002, 0x0002),
	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
	{ PCI_DEVICE(0x1002, 0x1308),
	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
	{ PCI_DEVICE(0x1002, 0x157a),
	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
	{ PCI_DEVICE(0x1002, 0x15b3),
	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
	{ PCI_DEVICE(0x1002, 0x793b),
	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
	{ PCI_DEVICE(0x1002, 0x7919),
	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
	{ PCI_DEVICE(0x1002, 0x960f),
	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
	{ PCI_DEVICE(0x1002, 0x970f),
	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
	{ PCI_DEVICE(0x1002, 0x9840),
	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
	{ PCI_DEVICE(0x1002, 0xaa00),
	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
	{ PCI_DEVICE(0x1002, 0xaa08),
	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
	{ PCI_DEVICE(0x1002, 0xaa10),
	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
	{ PCI_DEVICE(0x1002, 0xaa18),
	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
	{ PCI_DEVICE(0x1002, 0xaa20),
	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
	{ PCI_DEVICE(0x1002, 0xaa28),
	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
	{ PCI_DEVICE(0x1002, 0xaa30),
	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
	{ PCI_DEVICE(0x1002, 0xaa38),
	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
	{ PCI_DEVICE(0x1002, 0xaa40),
	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
	{ PCI_DEVICE(0x1002, 0xaa48),
	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
	{ PCI_DEVICE(0x1002, 0xaa50),
	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
	{ PCI_DEVICE(0x1002, 0xaa58),
	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
	{ PCI_DEVICE(0x1002, 0xaa60),
	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
	{ PCI_DEVICE(0x1002, 0xaa68),
	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
	{ PCI_DEVICE(0x1002, 0xaa80),
	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
	{ PCI_DEVICE(0x1002, 0xaa88),
	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
	{ PCI_DEVICE(0x1002, 0xaa90),
	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
	{ PCI_DEVICE(0x1002, 0xaa98),
	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
	{ PCI_DEVICE(0x1002, 0x9902),
	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
	{ PCI_DEVICE(0x1002, 0xaaa0),
	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
	{ PCI_DEVICE(0x1002, 0xaaa8),
	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
	{ PCI_DEVICE(0x1002, 0xaab0),
	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
	{ PCI_DEVICE(0x1002, 0xaac0),
	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
	{ PCI_DEVICE(0x1002, 0xaac8),
	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
	{ PCI_DEVICE(0x1002, 0xaad8),
	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
	  AZX_DCAPS_PM_RUNTIME },
	{ PCI_DEVICE(0x1002, 0xaae0),
	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
	  AZX_DCAPS_PM_RUNTIME },
	{ PCI_DEVICE(0x1002, 0xaae8),
	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
	  AZX_DCAPS_PM_RUNTIME },
	{ PCI_DEVICE(0x1002, 0xaaf0),
	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
	  AZX_DCAPS_PM_RUNTIME },
	{ PCI_DEVICE(0x1002, 0xaaf8),
	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
	  AZX_DCAPS_PM_RUNTIME },
	{ PCI_DEVICE(0x1002, 0xab00),
	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
	  AZX_DCAPS_PM_RUNTIME },
	{ PCI_DEVICE(0x1002, 0xab08),
	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
	  AZX_DCAPS_PM_RUNTIME },
	{ PCI_DEVICE(0x1002, 0xab10),
	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
	  AZX_DCAPS_PM_RUNTIME },
	{ PCI_DEVICE(0x1002, 0xab18),
	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
	  AZX_DCAPS_PM_RUNTIME },
	{ PCI_DEVICE(0x1002, 0xab20),
	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
	  AZX_DCAPS_PM_RUNTIME },
	{ PCI_DEVICE(0x1002, 0xab38),
	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
	  AZX_DCAPS_PM_RUNTIME },
	/* VIA VT8251/VT8237A */
	{ PCI_DEVICE(0x1106, 0x3288), .driver_data = AZX_DRIVER_VIA },
	/* VIA GFX VT7122/VX900 */
	{ PCI_DEVICE(0x1106, 0x9170), .driver_data = AZX_DRIVER_GENERIC },
	/* VIA GFX VT6122/VX11 */
	{ PCI_DEVICE(0x1106, 0x9140), .driver_data = AZX_DRIVER_GENERIC },
	/* SIS966 */
	{ PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
	/* ULI M5461 */
	{ PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
	/* NVIDIA MCP */
	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
	  .class_mask = 0xffffff,
	  .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
	/* Teradici */
	{ PCI_DEVICE(0x6549, 0x1200),
	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
	{ PCI_DEVICE(0x6549, 0x2200),
	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
	/* Creative X-Fi (CA0110-IBG) */
	/* CTHDA chips */
	{ PCI_DEVICE(0x1102, 0x0010),
	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
	{ PCI_DEVICE(0x1102, 0x0012),
	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
#if !IS_ENABLED(CONFIG_SND_CTXFI)
	/* the following entry conflicts with snd-ctxfi driver,
	 * as ctxfi driver mutates from HD-audio to native mode with
	 * a special command sequence.
	 */
	{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
	  .class_mask = 0xffffff,
	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
#else
	/* this entry seems still valid -- i.e. without emu20kx chip */
	{ PCI_DEVICE(0x1102, 0x0009),
	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
#endif
	/* CM8888 */
	{ PCI_DEVICE(0x13f6, 0x5011),
	  .driver_data = AZX_DRIVER_CMEDIA |
	  AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_SNOOP_OFF },
	/* Vortex86MX */
	{ PCI_DEVICE(0x17f3, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
	/* VMware HDAudio */
	{ PCI_DEVICE(0x15ad, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
	/* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
	  .class_mask = 0xffffff,
	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
	  .class_mask = 0xffffff,
	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
	/* Zhaoxin */
	{ PCI_DEVICE(0x1d17, 0x3288), .driver_data = AZX_DRIVER_ZHAOXIN },
	{ 0, }
};
MODULE_DEVICE_TABLE(pci, azx_ids);

/* pci_driver definition */
static struct pci_driver azx_driver = {
	.name = KBUILD_MODNAME,
	.id_table = azx_ids,
	.probe = azx_probe,
	.remove = azx_remove,
	.shutdown = azx_shutdown,
	.driver = {
		.pm = AZX_PM_OPS,
	},
};

module_pci_driver(azx_driver);