summaryrefslogtreecommitdiff
path: root/sound/pci/hda/hda_codec.c
blob: 821aad374a0695a46c4c265365b71a81aa134412 (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
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
/*
 * Universal Interface for Intel High Definition Audio Codec
 *
 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
 *
 *
 *  This driver is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This driver is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 */

#include <linux/init.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/mutex.h>
#include <linux/module.h>
#include <linux/pm.h>
#include <linux/pm_runtime.h>
#include <sound/core.h>
#include "hda_codec.h"
#include <sound/asoundef.h>
#include <sound/tlv.h>
#include <sound/initval.h>
#include <sound/jack.h>
#include "hda_local.h"
#include "hda_beep.h"
#include "hda_jack.h"
#include <sound/hda_hwdep.h>

#ifdef CONFIG_PM
#define codec_in_pm(codec)	atomic_read(&(codec)->core.in_pm)
#define hda_codec_is_power_on(codec) \
	(!pm_runtime_suspended(hda_codec_dev(codec)))
#else
#define codec_in_pm(codec)	0
#define hda_codec_is_power_on(codec)	1
#endif

#define codec_has_epss(codec) \
	((codec)->core.power_caps & AC_PWRST_EPSS)
#define codec_has_clkstop(codec) \
	((codec)->core.power_caps & AC_PWRST_CLKSTOP)

/*
 * Send and receive a verb - passed to exec_verb override for hdac_device
 */
static int codec_exec_verb(struct hdac_device *dev, unsigned int cmd,
			   unsigned int flags, unsigned int *res)
{
	struct hda_codec *codec = container_of(dev, struct hda_codec, core);
	struct hda_bus *bus = codec->bus;
	int err;

	if (cmd == ~0)
		return -1;

 again:
	snd_hda_power_up_pm(codec);
	mutex_lock(&bus->core.cmd_mutex);
	if (flags & HDA_RW_NO_RESPONSE_FALLBACK)
		bus->no_response_fallback = 1;
	err = snd_hdac_bus_exec_verb_unlocked(&bus->core, codec->core.addr,
					      cmd, res);
	bus->no_response_fallback = 0;
	mutex_unlock(&bus->core.cmd_mutex);
	snd_hda_power_down_pm(codec);
	if (!codec_in_pm(codec) && res && err == -EAGAIN) {
		if (bus->response_reset) {
			codec_dbg(codec,
				  "resetting BUS due to fatal communication error\n");
			snd_hda_bus_reset(bus);
		}
		goto again;
	}
	/* clear reset-flag when the communication gets recovered */
	if (!err || codec_in_pm(codec))
		bus->response_reset = 0;
	return err;
}

/**
 * snd_hda_sequence_write - sequence writes
 * @codec: the HDA codec
 * @seq: VERB array to send
 *
 * Send the commands sequentially from the given array.
 * The array must be terminated with NID=0.
 */
void snd_hda_sequence_write(struct hda_codec *codec, const struct hda_verb *seq)
{
	for (; seq->nid; seq++)
		snd_hda_codec_write(codec, seq->nid, 0, seq->verb, seq->param);
}
EXPORT_SYMBOL_GPL(snd_hda_sequence_write);

/* connection list element */
struct hda_conn_list {
	struct list_head list;
	int len;
	hda_nid_t nid;
	hda_nid_t conns[0];
};

/* look up the cached results */
static struct hda_conn_list *
lookup_conn_list(struct hda_codec *codec, hda_nid_t nid)
{
	struct hda_conn_list *p;
	list_for_each_entry(p, &codec->conn_list, list) {
		if (p->nid == nid)
			return p;
	}
	return NULL;
}

static int add_conn_list(struct hda_codec *codec, hda_nid_t nid, int len,
			 const hda_nid_t *list)
{
	struct hda_conn_list *p;

	p = kmalloc(sizeof(*p) + len * sizeof(hda_nid_t), GFP_KERNEL);
	if (!p)
		return -ENOMEM;
	p->len = len;
	p->nid = nid;
	memcpy(p->conns, list, len * sizeof(hda_nid_t));
	list_add(&p->list, &codec->conn_list);
	return 0;
}

static void remove_conn_list(struct hda_codec *codec)
{
	while (!list_empty(&codec->conn_list)) {
		struct hda_conn_list *p;
		p = list_first_entry(&codec->conn_list, typeof(*p), list);
		list_del(&p->list);
		kfree(p);
	}
}

/* read the connection and add to the cache */
static int read_and_add_raw_conns(struct hda_codec *codec, hda_nid_t nid)
{
	hda_nid_t list[32];
	hda_nid_t *result = list;
	int len;

	len = snd_hda_get_raw_connections(codec, nid, list, ARRAY_SIZE(list));
	if (len == -ENOSPC) {
		len = snd_hda_get_num_raw_conns(codec, nid);
		result = kmalloc(sizeof(hda_nid_t) * len, GFP_KERNEL);
		if (!result)
			return -ENOMEM;
		len = snd_hda_get_raw_connections(codec, nid, result, len);
	}
	if (len >= 0)
		len = snd_hda_override_conn_list(codec, nid, len, result);
	if (result != list)
		kfree(result);
	return len;
}

/**
 * snd_hda_get_conn_list - get connection list
 * @codec: the HDA codec
 * @nid: NID to parse
 * @listp: the pointer to store NID list
 *
 * Parses the connection list of the given widget and stores the pointer
 * to the list of NIDs.
 *
 * Returns the number of connections, or a negative error code.
 *
 * Note that the returned pointer isn't protected against the list
 * modification.  If snd_hda_override_conn_list() might be called
 * concurrently, protect with a mutex appropriately.
 */
int snd_hda_get_conn_list(struct hda_codec *codec, hda_nid_t nid,
			  const hda_nid_t **listp)
{
	bool added = false;

	for (;;) {
		int err;
		const struct hda_conn_list *p;

		/* if the connection-list is already cached, read it */
		p = lookup_conn_list(codec, nid);
		if (p) {
			if (listp)
				*listp = p->conns;
			return p->len;
		}
		if (snd_BUG_ON(added))
			return -EINVAL;

		err = read_and_add_raw_conns(codec, nid);
		if (err < 0)
			return err;
		added = true;
	}
}
EXPORT_SYMBOL_GPL(snd_hda_get_conn_list);

/**
 * snd_hda_get_connections - copy connection list
 * @codec: the HDA codec
 * @nid: NID to parse
 * @conn_list: connection list array; when NULL, checks only the size
 * @max_conns: max. number of connections to store
 *
 * Parses the connection list of the given widget and stores the list
 * of NIDs.
 *
 * Returns the number of connections, or a negative error code.
 */
int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
			    hda_nid_t *conn_list, int max_conns)
{
	const hda_nid_t *list;
	int len = snd_hda_get_conn_list(codec, nid, &list);

	if (len > 0 && conn_list) {
		if (len > max_conns) {
			codec_err(codec, "Too many connections %d for NID 0x%x\n",
				   len, nid);
			return -EINVAL;
		}
		memcpy(conn_list, list, len * sizeof(hda_nid_t));
	}

	return len;
}
EXPORT_SYMBOL_GPL(snd_hda_get_connections);

/**
 * snd_hda_override_conn_list - add/modify the connection-list to cache
 * @codec: the HDA codec
 * @nid: NID to parse
 * @len: number of connection list entries
 * @list: the list of connection entries
 *
 * Add or modify the given connection-list to the cache.  If the corresponding
 * cache already exists, invalidate it and append a new one.
 *
 * Returns zero or a negative error code.
 */
int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int len,
			       const hda_nid_t *list)
{
	struct hda_conn_list *p;

	p = lookup_conn_list(codec, nid);
	if (p) {
		list_del(&p->list);
		kfree(p);
	}

	return add_conn_list(codec, nid, len, list);
}
EXPORT_SYMBOL_GPL(snd_hda_override_conn_list);

/**
 * snd_hda_get_conn_index - get the connection index of the given NID
 * @codec: the HDA codec
 * @mux: NID containing the list
 * @nid: NID to select
 * @recursive: 1 when searching NID recursively, otherwise 0
 *
 * Parses the connection list of the widget @mux and checks whether the
 * widget @nid is present.  If it is, return the connection index.
 * Otherwise it returns -1.
 */
int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux,
			   hda_nid_t nid, int recursive)
{
	const hda_nid_t *conn;
	int i, nums;

	nums = snd_hda_get_conn_list(codec, mux, &conn);
	for (i = 0; i < nums; i++)
		if (conn[i] == nid)
			return i;
	if (!recursive)
		return -1;
	if (recursive > 10) {
		codec_dbg(codec, "too deep connection for 0x%x\n", nid);
		return -1;
	}
	recursive++;
	for (i = 0; i < nums; i++) {
		unsigned int type = get_wcaps_type(get_wcaps(codec, conn[i]));
		if (type == AC_WID_PIN || type == AC_WID_AUD_OUT)
			continue;
		if (snd_hda_get_conn_index(codec, conn[i], nid, recursive) >= 0)
			return i;
	}
	return -1;
}
EXPORT_SYMBOL_GPL(snd_hda_get_conn_index);

/**
 * snd_hda_get_num_devices - get DEVLIST_LEN parameter of the given widget
 *  @codec: the HDA codec
 *  @nid: NID of the pin to parse
 *
 * Get the device entry number on the given widget. This is a feature of
 * DP MST audio. Each pin can have several device entries in it.
 */
unsigned int snd_hda_get_num_devices(struct hda_codec *codec, hda_nid_t nid)
{
	unsigned int wcaps = get_wcaps(codec, nid);
	unsigned int parm;

	if (!codec->dp_mst || !(wcaps & AC_WCAP_DIGITAL) ||
	    get_wcaps_type(wcaps) != AC_WID_PIN)
		return 0;

	parm = snd_hdac_read_parm_uncached(&codec->core, nid, AC_PAR_DEVLIST_LEN);
	if (parm == -1)
		parm = 0;
	return parm & AC_DEV_LIST_LEN_MASK;
}
EXPORT_SYMBOL_GPL(snd_hda_get_num_devices);

/**
 * snd_hda_get_devices - copy device list without cache
 * @codec: the HDA codec
 * @nid: NID of the pin to parse
 * @dev_list: device list array
 * @max_devices: max. number of devices to store
 *
 * Copy the device list. This info is dynamic and so not cached.
 * Currently called only from hda_proc.c, so not exported.
 */
int snd_hda_get_devices(struct hda_codec *codec, hda_nid_t nid,
			u8 *dev_list, int max_devices)
{
	unsigned int parm;
	int i, dev_len, devices;

	parm = snd_hda_get_num_devices(codec, nid);
	if (!parm)	/* not multi-stream capable */
		return 0;

	dev_len = parm + 1;
	dev_len = dev_len < max_devices ? dev_len : max_devices;

	devices = 0;
	while (devices < dev_len) {
		if (snd_hdac_read(&codec->core, nid,
				  AC_VERB_GET_DEVICE_LIST, devices, &parm))
			break; /* error */

		for (i = 0; i < 8; i++) {
			dev_list[devices] = (u8)parm;
			parm >>= 4;
			devices++;
			if (devices >= dev_len)
				break;
		}
	}
	return devices;
}

/**
 * snd_hda_get_dev_select - get device entry select on the pin
 * @codec: the HDA codec
 * @nid: NID of the pin to get device entry select
 *
 * Get the devcie entry select on the pin. Return the device entry
 * id selected on the pin. Return 0 means the first device entry
 * is selected or MST is not supported.
 */
int snd_hda_get_dev_select(struct hda_codec *codec, hda_nid_t nid)
{
	/* not support dp_mst will always return 0, using first dev_entry */
	if (!codec->dp_mst)
		return 0;

	return snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DEVICE_SEL, 0);
}
EXPORT_SYMBOL_GPL(snd_hda_get_dev_select);

/**
 * snd_hda_set_dev_select - set device entry select on the pin
 * @codec: the HDA codec
 * @nid: NID of the pin to set device entry select
 * @dev_id: device entry id to be set
 *
 * Set the device entry select on the pin nid.
 */
int snd_hda_set_dev_select(struct hda_codec *codec, hda_nid_t nid, int dev_id)
{
	int ret, num_devices;

	/* not support dp_mst will always return 0, using first dev_entry */
	if (!codec->dp_mst)
		return 0;

	/* AC_PAR_DEVLIST_LEN is 0 based. */
	num_devices = snd_hda_get_num_devices(codec, nid) + 1;
	/* If Device List Length is 0 (num_device = 1),
	 * the pin is not multi stream capable.
	 * Do nothing in this case.
	 */
	if (num_devices == 1)
		return 0;

	/* Behavior of setting index being equal to or greater than
	 * Device List Length is not predictable
	 */
	if (num_devices <= dev_id)
		return -EINVAL;

	ret = snd_hda_codec_write(codec, nid, 0,
			AC_VERB_SET_DEVICE_SEL, dev_id);

	return ret;
}
EXPORT_SYMBOL_GPL(snd_hda_set_dev_select);

/*
 * read widget caps for each widget and store in cache
 */
static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node)
{
	int i;
	hda_nid_t nid;

	codec->wcaps = kmalloc(codec->core.num_nodes * 4, GFP_KERNEL);
	if (!codec->wcaps)
		return -ENOMEM;
	nid = codec->core.start_nid;
	for (i = 0; i < codec->core.num_nodes; i++, nid++)
		codec->wcaps[i] = snd_hdac_read_parm_uncached(&codec->core,
					nid, AC_PAR_AUDIO_WIDGET_CAP);
	return 0;
}

/* read all pin default configurations and save codec->init_pins */
static int read_pin_defaults(struct hda_codec *codec)
{
	hda_nid_t nid;

	for_each_hda_codec_node(nid, codec) {
		struct hda_pincfg *pin;
		unsigned int wcaps = get_wcaps(codec, nid);
		unsigned int wid_type = get_wcaps_type(wcaps);
		if (wid_type != AC_WID_PIN)
			continue;
		pin = snd_array_new(&codec->init_pins);
		if (!pin)
			return -ENOMEM;
		pin->nid = nid;
		pin->cfg = snd_hda_codec_read(codec, nid, 0,
					      AC_VERB_GET_CONFIG_DEFAULT, 0);
		/*
		 * all device entries are the same widget control so far
		 * fixme: if any codec is different, need fix here
		 */
		pin->ctrl = snd_hda_codec_read(codec, nid, 0,
					       AC_VERB_GET_PIN_WIDGET_CONTROL,
					       0);
	}
	return 0;
}

/* look up the given pin config list and return the item matching with NID */
static struct hda_pincfg *look_up_pincfg(struct hda_codec *codec,
					 struct snd_array *array,
					 hda_nid_t nid)
{
	int i;
	for (i = 0; i < array->used; i++) {
		struct hda_pincfg *pin = snd_array_elem(array, i);
		if (pin->nid == nid)
			return pin;
	}
	return NULL;
}

/* set the current pin config value for the given NID.
 * the value is cached, and read via snd_hda_codec_get_pincfg()
 */
int snd_hda_add_pincfg(struct hda_codec *codec, struct snd_array *list,
		       hda_nid_t nid, unsigned int cfg)
{
	struct hda_pincfg *pin;

	/* the check below may be invalid when pins are added by a fixup
	 * dynamically (e.g. via snd_hda_codec_update_widgets()), so disabled
	 * for now
	 */
	/*
	if (get_wcaps_type(get_wcaps(codec, nid)) != AC_WID_PIN)
		return -EINVAL;
	*/

	pin = look_up_pincfg(codec, list, nid);
	if (!pin) {
		pin = snd_array_new(list);
		if (!pin)
			return -ENOMEM;
		pin->nid = nid;
	}
	pin->cfg = cfg;
	return 0;
}

/**
 * snd_hda_codec_set_pincfg - Override a pin default configuration
 * @codec: the HDA codec
 * @nid: NID to set the pin config
 * @cfg: the pin default config value
 *
 * Override a pin default configuration value in the cache.
 * This value can be read by snd_hda_codec_get_pincfg() in a higher
 * priority than the real hardware value.
 */
int snd_hda_codec_set_pincfg(struct hda_codec *codec,
			     hda_nid_t nid, unsigned int cfg)
{
	return snd_hda_add_pincfg(codec, &codec->driver_pins, nid, cfg);
}
EXPORT_SYMBOL_GPL(snd_hda_codec_set_pincfg);

/**
 * snd_hda_codec_get_pincfg - Obtain a pin-default configuration
 * @codec: the HDA codec
 * @nid: NID to get the pin config
 *
 * Get the current pin config value of the given pin NID.
 * If the pincfg value is cached or overridden via sysfs or driver,
 * returns the cached value.
 */
unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid)
{
	struct hda_pincfg *pin;

#ifdef CONFIG_SND_HDA_RECONFIG
	{
		unsigned int cfg = 0;
		mutex_lock(&codec->user_mutex);
		pin = look_up_pincfg(codec, &codec->user_pins, nid);
		if (pin)
			cfg = pin->cfg;
		mutex_unlock(&codec->user_mutex);
		if (cfg)
			return cfg;
	}
#endif
	pin = look_up_pincfg(codec, &codec->driver_pins, nid);
	if (pin)
		return pin->cfg;
	pin = look_up_pincfg(codec, &codec->init_pins, nid);
	if (pin)
		return pin->cfg;
	return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_codec_get_pincfg);

/**
 * snd_hda_codec_set_pin_target - remember the current pinctl target value
 * @codec: the HDA codec
 * @nid: pin NID
 * @val: assigned pinctl value
 *
 * This function stores the given value to a pinctl target value in the
 * pincfg table.  This isn't always as same as the actually written value
 * but can be referred at any time via snd_hda_codec_get_pin_target().
 */
int snd_hda_codec_set_pin_target(struct hda_codec *codec, hda_nid_t nid,
				 unsigned int val)
{
	struct hda_pincfg *pin;

	pin = look_up_pincfg(codec, &codec->init_pins, nid);
	if (!pin)
		return -EINVAL;
	pin->target = val;
	return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_codec_set_pin_target);

/**
 * snd_hda_codec_get_pin_target - return the current pinctl target value
 * @codec: the HDA codec
 * @nid: pin NID
 */
int snd_hda_codec_get_pin_target(struct hda_codec *codec, hda_nid_t nid)
{
	struct hda_pincfg *pin;

	pin = look_up_pincfg(codec, &codec->init_pins, nid);
	if (!pin)
		return 0;
	return pin->target;
}
EXPORT_SYMBOL_GPL(snd_hda_codec_get_pin_target);

/**
 * snd_hda_shutup_pins - Shut up all pins
 * @codec: the HDA codec
 *
 * Clear all pin controls to shup up before suspend for avoiding click noise.
 * The controls aren't cached so that they can be resumed properly.
 */
void snd_hda_shutup_pins(struct hda_codec *codec)
{
	int i;
	/* don't shut up pins when unloading the driver; otherwise it breaks
	 * the default pin setup at the next load of the driver
	 */
	if (codec->bus->shutdown)
		return;
	for (i = 0; i < codec->init_pins.used; i++) {
		struct hda_pincfg *pin = snd_array_elem(&codec->init_pins, i);
		/* use read here for syncing after issuing each verb */
		snd_hda_codec_read(codec, pin->nid, 0,
				   AC_VERB_SET_PIN_WIDGET_CONTROL, 0);
	}
	codec->pins_shutup = 1;
}
EXPORT_SYMBOL_GPL(snd_hda_shutup_pins);

#ifdef CONFIG_PM
/* Restore the pin controls cleared previously via snd_hda_shutup_pins() */
static void restore_shutup_pins(struct hda_codec *codec)
{
	int i;
	if (!codec->pins_shutup)
		return;
	if (codec->bus->shutdown)
		return;
	for (i = 0; i < codec->init_pins.used; i++) {
		struct hda_pincfg *pin = snd_array_elem(&codec->init_pins, i);
		snd_hda_codec_write(codec, pin->nid, 0,
				    AC_VERB_SET_PIN_WIDGET_CONTROL,
				    pin->ctrl);
	}
	codec->pins_shutup = 0;
}
#endif

static void hda_jackpoll_work(struct work_struct *work)
{
	struct hda_codec *codec =
		container_of(work, struct hda_codec, jackpoll_work.work);

	snd_hda_jack_set_dirty_all(codec);
	snd_hda_jack_poll_all(codec);

	if (!codec->jackpoll_interval)
		return;

	schedule_delayed_work(&codec->jackpoll_work,
			      codec->jackpoll_interval);
}

/* release all pincfg lists */
static void free_init_pincfgs(struct hda_codec *codec)
{
	snd_array_free(&codec->driver_pins);
#ifdef CONFIG_SND_HDA_RECONFIG
	snd_array_free(&codec->user_pins);
#endif
	snd_array_free(&codec->init_pins);
}

/*
 * audio-converter setup caches
 */
struct hda_cvt_setup {
	hda_nid_t nid;
	u8 stream_tag;
	u8 channel_id;
	u16 format_id;
	unsigned char active;	/* cvt is currently used */
	unsigned char dirty;	/* setups should be cleared */
};

/* get or create a cache entry for the given audio converter NID */
static struct hda_cvt_setup *
get_hda_cvt_setup(struct hda_codec *codec, hda_nid_t nid)
{
	struct hda_cvt_setup *p;
	int i;

	for (i = 0; i < codec->cvt_setups.used; i++) {
		p = snd_array_elem(&codec->cvt_setups, i);
		if (p->nid == nid)
			return p;
	}
	p = snd_array_new(&codec->cvt_setups);
	if (p)
		p->nid = nid;
	return p;
}

/*
 * PCM device
 */
static void release_pcm(struct kref *kref)
{
	struct hda_pcm *pcm = container_of(kref, struct hda_pcm, kref);

	if (pcm->pcm)
		snd_device_free(pcm->codec->card, pcm->pcm);
	clear_bit(pcm->device, pcm->codec->bus->pcm_dev_bits);
	kfree(pcm->name);
	kfree(pcm);
}

void snd_hda_codec_pcm_put(struct hda_pcm *pcm)
{
	kref_put(&pcm->kref, release_pcm);
}
EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_put);

struct hda_pcm *snd_hda_codec_pcm_new(struct hda_codec *codec,
				      const char *fmt, ...)
{
	struct hda_pcm *pcm;
	va_list args;

	pcm = kzalloc(sizeof(*pcm), GFP_KERNEL);
	if (!pcm)
		return NULL;

	pcm->codec = codec;
	kref_init(&pcm->kref);
	va_start(args, fmt);
	pcm->name = kvasprintf(GFP_KERNEL, fmt, args);
	va_end(args);
	if (!pcm->name) {
		kfree(pcm);
		return NULL;
	}

	list_add_tail(&pcm->list, &codec->pcm_list_head);
	return pcm;
}
EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_new);

/*
 * codec destructor
 */
static void codec_release_pcms(struct hda_codec *codec)
{
	struct hda_pcm *pcm, *n;

	list_for_each_entry_safe(pcm, n, &codec->pcm_list_head, list) {
		list_del_init(&pcm->list);
		if (pcm->pcm)
			snd_device_disconnect(codec->card, pcm->pcm);
		snd_hda_codec_pcm_put(pcm);
	}
}

void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec)
{
	if (codec->registered) {
		/* pm_runtime_put() is called in snd_hdac_device_exit() */
		pm_runtime_get_noresume(hda_codec_dev(codec));
		pm_runtime_disable(hda_codec_dev(codec));
		codec->registered = 0;
	}

	cancel_delayed_work_sync(&codec->jackpoll_work);
	if (!codec->in_freeing)
		snd_hda_ctls_clear(codec);
	codec_release_pcms(codec);
	snd_hda_detach_beep_device(codec);
	memset(&codec->patch_ops, 0, sizeof(codec->patch_ops));
	snd_hda_jack_tbl_clear(codec);
	codec->proc_widget_hook = NULL;
	codec->spec = NULL;

	/* free only driver_pins so that init_pins + user_pins are restored */
	snd_array_free(&codec->driver_pins);
	snd_array_free(&codec->cvt_setups);
	snd_array_free(&codec->spdif_out);
	snd_array_free(&codec->verbs);
	codec->preset = NULL;
	codec->slave_dig_outs = NULL;
	codec->spdif_status_reset = 0;
	snd_array_free(&codec->mixers);
	snd_array_free(&codec->nids);
	remove_conn_list(codec);
	snd_hdac_regmap_exit(&codec->core);
}

static unsigned int hda_set_power_state(struct hda_codec *codec,
				unsigned int power_state);

/* also called from hda_bind.c */
void snd_hda_codec_register(struct hda_codec *codec)
{
	if (codec->registered)
		return;
	if (device_is_registered(hda_codec_dev(codec))) {
		snd_hda_register_beep_device(codec);
		snd_hdac_link_power(&codec->core, true);
		pm_runtime_enable(hda_codec_dev(codec));
		/* it was powered up in snd_hda_codec_new(), now all done */
		snd_hda_power_down(codec);
		codec->registered = 1;
	}
}

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

static int snd_hda_codec_dev_disconnect(struct snd_device *device)
{
	struct hda_codec *codec = device->device_data;

	snd_hda_detach_beep_device(codec);
	return 0;
}

static int snd_hda_codec_dev_free(struct snd_device *device)
{
	struct hda_codec *codec = device->device_data;

	codec->in_freeing = 1;
	snd_hdac_device_unregister(&codec->core);
	snd_hdac_link_power(&codec->core, false);
	put_device(hda_codec_dev(codec));
	return 0;
}

static void snd_hda_codec_dev_release(struct device *dev)
{
	struct hda_codec *codec = dev_to_hda_codec(dev);

	free_init_pincfgs(codec);
	snd_hdac_device_exit(&codec->core);
	snd_hda_sysfs_clear(codec);
	kfree(codec->modelname);
	kfree(codec->wcaps);
	kfree(codec);
}

/**
 * snd_hda_codec_new - create a HDA codec
 * @bus: the bus to assign
 * @codec_addr: the codec address
 * @codecp: the pointer to store the generated codec
 *
 * Returns 0 if successful, or a negative error code.
 */
int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card,
		      unsigned int codec_addr, struct hda_codec **codecp)
{
	struct hda_codec *codec;
	char component[31];
	hda_nid_t fg;
	int err;
	static struct snd_device_ops dev_ops = {
		.dev_register = snd_hda_codec_dev_register,
		.dev_disconnect = snd_hda_codec_dev_disconnect,
		.dev_free = snd_hda_codec_dev_free,
	};

	if (snd_BUG_ON(!bus))
		return -EINVAL;
	if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS))
		return -EINVAL;

	codec = kzalloc(sizeof(*codec), GFP_KERNEL);
	if (!codec)
		return -ENOMEM;

	sprintf(component, "hdaudioC%dD%d", card->number, codec_addr);
	err = snd_hdac_device_init(&codec->core, &bus->core, component,
				   codec_addr);
	if (err < 0) {
		kfree(codec);
		return err;
	}

	codec->core.dev.release = snd_hda_codec_dev_release;
	codec->core.type = HDA_DEV_LEGACY;
	codec->core.exec_verb = codec_exec_verb;

	codec->bus = bus;
	codec->card = card;
	codec->addr = codec_addr;
	mutex_init(&codec->spdif_mutex);
	mutex_init(&codec->control_mutex);
	snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32);
	snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32);
	snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16);
	snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16);
	snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8);
	snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16);
	snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16);
	snd_array_init(&codec->verbs, sizeof(struct hda_verb *), 8);
	INIT_LIST_HEAD(&codec->conn_list);
	INIT_LIST_HEAD(&codec->pcm_list_head);

	INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work);
	codec->depop_delay = -1;
	codec->fixup_id = HDA_FIXUP_ID_NOT_SET;

#ifdef CONFIG_PM
	codec->power_jiffies = jiffies;
#endif

	snd_hda_sysfs_init(codec);

	if (codec->bus->modelname) {
		codec->modelname = kstrdup(codec->bus->modelname, GFP_KERNEL);
		if (!codec->modelname) {
			err = -ENOMEM;
			goto error;
		}
	}

	fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
	err = read_widget_caps(codec, fg);
	if (err < 0)
		goto error;
	err = read_pin_defaults(codec);
	if (err < 0)
		goto error;

	/* power-up all before initialization */
	hda_set_power_state(codec, AC_PWRST_D0);

	snd_hda_codec_proc_new(codec);

	snd_hda_create_hwdep(codec);

	sprintf(component, "HDA:%08x,%08x,%08x", codec->core.vendor_id,
		codec->core.subsystem_id, codec->core.revision_id);
	snd_component_add(card, component);

	err = snd_device_new(card, SNDRV_DEV_CODEC, codec, &dev_ops);
	if (err < 0)
		goto error;

	if (codecp)
		*codecp = codec;
	return 0;

 error:
	put_device(hda_codec_dev(codec));
	return err;
}
EXPORT_SYMBOL_GPL(snd_hda_codec_new);

/**
 * snd_hda_codec_update_widgets - Refresh widget caps and pin defaults
 * @codec: the HDA codec
 *
 * Forcibly refresh the all widget caps and the init pin configurations of
 * the given codec.
 */
int snd_hda_codec_update_widgets(struct hda_codec *codec)
{
	hda_nid_t fg;
	int err;

	err = snd_hdac_refresh_widget_sysfs(&codec->core);
	if (err < 0)
		return err;

	/* Assume the function group node does not change,
	 * only the widget nodes may change.
	 */
	kfree(codec->wcaps);
	fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
	err = read_widget_caps(codec, fg);
	if (err < 0)
		return err;

	snd_array_free(&codec->init_pins);
	err = read_pin_defaults(codec);

	return err;
}
EXPORT_SYMBOL_GPL(snd_hda_codec_update_widgets);

/* update the stream-id if changed */
static void update_pcm_stream_id(struct hda_codec *codec,
				 struct hda_cvt_setup *p, hda_nid_t nid,
				 u32 stream_tag, int channel_id)
{
	unsigned int oldval, newval;

	if (p->stream_tag != stream_tag || p->channel_id != channel_id) {
		oldval = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0);
		newval = (stream_tag << 4) | channel_id;
		if (oldval != newval)
			snd_hda_codec_write(codec, nid, 0,
					    AC_VERB_SET_CHANNEL_STREAMID,
					    newval);
		p->stream_tag = stream_tag;
		p->channel_id = channel_id;
	}
}

/* update the format-id if changed */
static void update_pcm_format(struct hda_codec *codec, struct hda_cvt_setup *p,
			      hda_nid_t nid, int format)
{
	unsigned int oldval;

	if (p->format_id != format) {
		oldval = snd_hda_codec_read(codec, nid, 0,
					    AC_VERB_GET_STREAM_FORMAT, 0);
		if (oldval != format) {
			msleep(1);
			snd_hda_codec_write(codec, nid, 0,
					    AC_VERB_SET_STREAM_FORMAT,
					    format);
		}
		p->format_id = format;
	}
}

/**
 * snd_hda_codec_setup_stream - set up the codec for streaming
 * @codec: the CODEC to set up
 * @nid: the NID to set up
 * @stream_tag: stream tag to pass, it's between 0x1 and 0xf.
 * @channel_id: channel id to pass, zero based.
 * @format: stream format.
 */
void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
				u32 stream_tag,
				int channel_id, int format)
{
	struct hda_codec *c;
	struct hda_cvt_setup *p;
	int type;
	int i;

	if (!nid)
		return;

	codec_dbg(codec,
		  "hda_codec_setup_stream: NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n",
		  nid, stream_tag, channel_id, format);
	p = get_hda_cvt_setup(codec, nid);
	if (!p)
		return;

	if (codec->patch_ops.stream_pm)
		codec->patch_ops.stream_pm(codec, nid, true);
	if (codec->pcm_format_first)
		update_pcm_format(codec, p, nid, format);
	update_pcm_stream_id(codec, p, nid, stream_tag, channel_id);
	if (!codec->pcm_format_first)
		update_pcm_format(codec, p, nid, format);

	p->active = 1;
	p->dirty = 0;

	/* make other inactive cvts with the same stream-tag dirty */
	type = get_wcaps_type(get_wcaps(codec, nid));
	list_for_each_codec(c, codec->bus) {
		for (i = 0; i < c->cvt_setups.used; i++) {
			p = snd_array_elem(&c->cvt_setups, i);
			if (!p->active && p->stream_tag == stream_tag &&
			    get_wcaps_type(get_wcaps(c, p->nid)) == type)
				p->dirty = 1;
		}
	}
}
EXPORT_SYMBOL_GPL(snd_hda_codec_setup_stream);

static void really_cleanup_stream(struct hda_codec *codec,
				  struct hda_cvt_setup *q);

/**
 * __snd_hda_codec_cleanup_stream - clean up the codec for closing
 * @codec: the CODEC to clean up
 * @nid: the NID to clean up
 * @do_now: really clean up the stream instead of clearing the active flag
 */
void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid,
				    int do_now)
{
	struct hda_cvt_setup *p;

	if (!nid)
		return;

	if (codec->no_sticky_stream)
		do_now = 1;

	codec_dbg(codec, "hda_codec_cleanup_stream: NID=0x%x\n", nid);
	p = get_hda_cvt_setup(codec, nid);
	if (p) {
		/* here we just clear the active flag when do_now isn't set;
		 * actual clean-ups will be done later in
		 * purify_inactive_streams() called from snd_hda_codec_prpapre()
		 */
		if (do_now)
			really_cleanup_stream(codec, p);
		else
			p->active = 0;
	}
}
EXPORT_SYMBOL_GPL(__snd_hda_codec_cleanup_stream);

static void really_cleanup_stream(struct hda_codec *codec,
				  struct hda_cvt_setup *q)
{
	hda_nid_t nid = q->nid;
	if (q->stream_tag || q->channel_id)
		snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID, 0);
	if (q->format_id)
		snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, 0
);
	memset(q, 0, sizeof(*q));
	q->nid = nid;
	if (codec->patch_ops.stream_pm)
		codec->patch_ops.stream_pm(codec, nid, false);
}

/* clean up the all conflicting obsolete streams */
static void purify_inactive_streams(struct hda_codec *codec)
{
	struct hda_codec *c;
	int i;

	list_for_each_codec(c, codec->bus) {
		for (i = 0; i < c->cvt_setups.used; i++) {
			struct hda_cvt_setup *p;
			p = snd_array_elem(&c->cvt_setups, i);
			if (p->dirty)
				really_cleanup_stream(c, p);
		}
	}
}

#ifdef CONFIG_PM
/* clean up all streams; called from suspend */
static void hda_cleanup_all_streams(struct hda_codec *codec)
{
	int i;

	for (i = 0; i < codec->cvt_setups.used; i++) {
		struct hda_cvt_setup *p = snd_array_elem(&codec->cvt_setups, i);
		if (p->stream_tag)
			really_cleanup_stream(codec, p);
	}
}
#endif

/*
 * amp access functions
 */

/**
 * query_amp_caps - query AMP capabilities
 * @codec: the HD-auio codec
 * @nid: the NID to query
 * @direction: either #HDA_INPUT or #HDA_OUTPUT
 *
 * Query AMP capabilities for the given widget and direction.
 * Returns the obtained capability bits.
 *
 * When cap bits have been already read, this doesn't read again but
 * returns the cached value.
 */
u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
{
	if (!(get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD))
		nid = codec->core.afg;
	return snd_hda_param_read(codec, nid,
				  direction == HDA_OUTPUT ?
				  AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
}
EXPORT_SYMBOL_GPL(query_amp_caps);

/**
 * snd_hda_check_amp_caps - query AMP capabilities
 * @codec: the HD-audio codec
 * @nid: the NID to query
 * @dir: either #HDA_INPUT or #HDA_OUTPUT
 * @bits: bit mask to check the result
 *
 * Check whether the widget has the given amp capability for the direction.
 */
bool snd_hda_check_amp_caps(struct hda_codec *codec, hda_nid_t nid,
			   int dir, unsigned int bits)
{
	if (!nid)
		return false;
	if (get_wcaps(codec, nid) & (1 << (dir + 1)))
		if (query_amp_caps(codec, nid, dir) & bits)
			return true;
	return false;
}
EXPORT_SYMBOL_GPL(snd_hda_check_amp_caps);

/**
 * snd_hda_override_amp_caps - Override the AMP capabilities
 * @codec: the CODEC to clean up
 * @nid: the NID to clean up
 * @dir: either #HDA_INPUT or #HDA_OUTPUT
 * @caps: the capability bits to set
 *
 * Override the cached AMP caps bits value by the given one.
 * This function is useful if the driver needs to adjust the AMP ranges,
 * e.g. limit to 0dB, etc.
 *
 * Returns zero if successful or a negative error code.
 */
int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
			      unsigned int caps)
{
	unsigned int parm;

	snd_hda_override_wcaps(codec, nid,
			       get_wcaps(codec, nid) | AC_WCAP_AMP_OVRD);
	parm = dir == HDA_OUTPUT ? AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP;
	return snd_hdac_override_parm(&codec->core, nid, parm, caps);
}
EXPORT_SYMBOL_GPL(snd_hda_override_amp_caps);

/**
 * snd_hda_codec_amp_update - update the AMP mono value
 * @codec: HD-audio codec
 * @nid: NID to read the AMP value
 * @ch: channel to update (0 or 1)
 * @dir: #HDA_INPUT or #HDA_OUTPUT
 * @idx: the index value (only for input direction)
 * @mask: bit mask to set
 * @val: the bits value to set
 *
 * Update the AMP values for the given channel, direction and index.
 */
int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid,
			     int ch, int dir, int idx, int mask, int val)
{
	unsigned int cmd = snd_hdac_regmap_encode_amp(nid, ch, dir, idx);

	/* enable fake mute if no h/w mute but min=mute */
	if ((query_amp_caps(codec, nid, dir) &
	     (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE)) == AC_AMPCAP_MIN_MUTE)
		cmd |= AC_AMP_FAKE_MUTE;
	return snd_hdac_regmap_update_raw(&codec->core, cmd, mask, val);
}
EXPORT_SYMBOL_GPL(snd_hda_codec_amp_update);

/**
 * snd_hda_codec_amp_stereo - update the AMP stereo values
 * @codec: HD-audio codec
 * @nid: NID to read the AMP value
 * @direction: #HDA_INPUT or #HDA_OUTPUT
 * @idx: the index value (only for input direction)
 * @mask: bit mask to set
 * @val: the bits value to set
 *
 * Update the AMP values like snd_hda_codec_amp_update(), but for a
 * stereo widget with the same mask and value.
 */
int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
			     int direction, int idx, int mask, int val)
{
	int ch, ret = 0;

	if (snd_BUG_ON(mask & ~0xff))
		mask &= 0xff;
	for (ch = 0; ch < 2; ch++)
		ret |= snd_hda_codec_amp_update(codec, nid, ch, direction,
						idx, mask, val);
	return ret;
}
EXPORT_SYMBOL_GPL(snd_hda_codec_amp_stereo);

/**
 * snd_hda_codec_amp_init - initialize the AMP value
 * @codec: the HDA codec
 * @nid: NID to read the AMP value
 * @ch: channel (left=0 or right=1)
 * @dir: #HDA_INPUT or #HDA_OUTPUT
 * @idx: the index value (only for input direction)
 * @mask: bit mask to set
 * @val: the bits value to set
 *
 * Works like snd_hda_codec_amp_update() but it writes the value only at
 * the first access.  If the amp was already initialized / updated beforehand,
 * this does nothing.
 */
int snd_hda_codec_amp_init(struct hda_codec *codec, hda_nid_t nid, int ch,
			   int dir, int idx, int mask, int val)
{
	int orig;

	if (!codec->core.regmap)
		return -EINVAL;
	regcache_cache_only(codec->core.regmap, true);
	orig = snd_hda_codec_amp_read(codec, nid, ch, dir, idx);
	regcache_cache_only(codec->core.regmap, false);
	if (orig >= 0)
		return 0;
	return snd_hda_codec_amp_update(codec, nid, ch, dir, idx, mask, val);
}
EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init);

/**
 * snd_hda_codec_amp_init_stereo - initialize the stereo AMP value
 * @codec: the HDA codec
 * @nid: NID to read the AMP value
 * @dir: #HDA_INPUT or #HDA_OUTPUT
 * @idx: the index value (only for input direction)
 * @mask: bit mask to set
 * @val: the bits value to set
 *
 * Call snd_hda_codec_amp_init() for both stereo channels.
 */
int snd_hda_codec_amp_init_stereo(struct hda_codec *codec, hda_nid_t nid,
				  int dir, int idx, int mask, int val)
{
	int ch, ret = 0;

	if (snd_BUG_ON(mask & ~0xff))
		mask &= 0xff;
	for (ch = 0; ch < 2; ch++)
		ret |= snd_hda_codec_amp_init(codec, nid, ch, dir,
					      idx, mask, val);
	return ret;
}
EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init_stereo);

static u32 get_amp_max_value(struct hda_codec *codec, hda_nid_t nid, int dir,
			     unsigned int ofs)
{
	u32 caps = query_amp_caps(codec, nid, dir);
	/* get num steps */
	caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
	if (ofs < caps)
		caps -= ofs;
	return caps;
}

/**
 * snd_hda_mixer_amp_volume_info - Info callback for a standard AMP mixer
 * @kcontrol: referred ctl element
 * @uinfo: pointer to get/store the data
 *
 * The control element is supposed to have the private_value field
 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
 */
int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_info *uinfo)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	u16 nid = get_amp_nid(kcontrol);
	u8 chs = get_amp_channels(kcontrol);
	int dir = get_amp_direction(kcontrol);
	unsigned int ofs = get_amp_offset(kcontrol);

	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = chs == 3 ? 2 : 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = get_amp_max_value(codec, nid, dir, ofs);
	if (!uinfo->value.integer.max) {
		codec_warn(codec,
			   "num_steps = 0 for NID=0x%x (ctl = %s)\n",
			   nid, kcontrol->id.name);
		return -EINVAL;
	}
	return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_info);


static inline unsigned int
read_amp_value(struct hda_codec *codec, hda_nid_t nid,
	       int ch, int dir, int idx, unsigned int ofs)
{
	unsigned int val;
	val = snd_hda_codec_amp_read(codec, nid, ch, dir, idx);
	val &= HDA_AMP_VOLMASK;
	if (val >= ofs)
		val -= ofs;
	else
		val = 0;
	return val;
}

static inline int
update_amp_value(struct hda_codec *codec, hda_nid_t nid,
		 int ch, int dir, int idx, unsigned int ofs,
		 unsigned int val)
{
	unsigned int maxval;

	if (val > 0)
		val += ofs;
	/* ofs = 0: raw max value */
	maxval = get_amp_max_value(codec, nid, dir, 0);
	if (val > maxval)
		val = maxval;
	return snd_hda_codec_amp_update(codec, nid, ch, dir, idx,
					HDA_AMP_VOLMASK, val);
}

/**
 * snd_hda_mixer_amp_volume_get - Get callback for a standard AMP mixer volume
 * @kcontrol: ctl element
 * @ucontrol: pointer to get/store the data
 *
 * The control element is supposed to have the private_value field
 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
 */
int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
				 struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	hda_nid_t nid = get_amp_nid(kcontrol);
	int chs = get_amp_channels(kcontrol);
	int dir = get_amp_direction(kcontrol);
	int idx = get_amp_index(kcontrol);
	unsigned int ofs = get_amp_offset(kcontrol);
	long *valp = ucontrol->value.integer.value;

	if (chs & 1)
		*valp++ = read_amp_value(codec, nid, 0, dir, idx, ofs);
	if (chs & 2)
		*valp = read_amp_value(codec, nid, 1, dir, idx, ofs);
	return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_get);

/**
 * snd_hda_mixer_amp_volume_put - Put callback for a standard AMP mixer volume
 * @kcontrol: ctl element
 * @ucontrol: pointer to get/store the data
 *
 * The control element is supposed to have the private_value field
 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
 */
int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
				 struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	hda_nid_t nid = get_amp_nid(kcontrol);
	int chs = get_amp_channels(kcontrol);
	int dir = get_amp_direction(kcontrol);
	int idx = get_amp_index(kcontrol);
	unsigned int ofs = get_amp_offset(kcontrol);
	long *valp = ucontrol->value.integer.value;
	int change = 0;

	if (chs & 1) {
		change = update_amp_value(codec, nid, 0, dir, idx, ofs, *valp);
		valp++;
	}
	if (chs & 2)
		change |= update_amp_value(codec, nid, 1, dir, idx, ofs, *valp);
	return change;
}
EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_put);

/* inquiry the amp caps and convert to TLV */
static void get_ctl_amp_tlv(struct snd_kcontrol *kcontrol, unsigned int *tlv)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	hda_nid_t nid = get_amp_nid(kcontrol);
	int dir = get_amp_direction(kcontrol);
	unsigned int ofs = get_amp_offset(kcontrol);
	bool min_mute = get_amp_min_mute(kcontrol);
	u32 caps, val1, val2;

	caps = query_amp_caps(codec, nid, dir);
	val2 = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
	val2 = (val2 + 1) * 25;
	val1 = -((caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT);
	val1 += ofs;
	val1 = ((int)val1) * ((int)val2);
	if (min_mute || (caps & AC_AMPCAP_MIN_MUTE))
		val2 |= TLV_DB_SCALE_MUTE;
	tlv[0] = SNDRV_CTL_TLVT_DB_SCALE;
	tlv[1] = 2 * sizeof(unsigned int);
	tlv[2] = val1;
	tlv[3] = val2;
}

/**
 * snd_hda_mixer_amp_tlv - TLV callback for a standard AMP mixer volume
 * @kcontrol: ctl element
 * @op_flag: operation flag
 * @size: byte size of input TLV
 * @_tlv: TLV data
 *
 * The control element is supposed to have the private_value field
 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
 */
int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
			  unsigned int size, unsigned int __user *_tlv)
{
	unsigned int tlv[4];

	if (size < 4 * sizeof(unsigned int))
		return -ENOMEM;
	get_ctl_amp_tlv(kcontrol, tlv);
	if (copy_to_user(_tlv, tlv, sizeof(tlv)))
		return -EFAULT;
	return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_tlv);

/**
 * snd_hda_set_vmaster_tlv - Set TLV for a virtual master control
 * @codec: HD-audio codec
 * @nid: NID of a reference widget
 * @dir: #HDA_INPUT or #HDA_OUTPUT
 * @tlv: TLV data to be stored, at least 4 elements
 *
 * Set (static) TLV data for a virtual master volume using the AMP caps
 * obtained from the reference NID.
 * The volume range is recalculated as if the max volume is 0dB.
 */
void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir,
			     unsigned int *tlv)
{
	u32 caps;
	int nums, step;

	caps = query_amp_caps(codec, nid, dir);
	nums = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
	step = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
	step = (step + 1) * 25;
	tlv[0] = SNDRV_CTL_TLVT_DB_SCALE;
	tlv[1] = 2 * sizeof(unsigned int);
	tlv[2] = -nums * step;
	tlv[3] = step;
}
EXPORT_SYMBOL_GPL(snd_hda_set_vmaster_tlv);

/* find a mixer control element with the given name */
static struct snd_kcontrol *
find_mixer_ctl(struct hda_codec *codec, const char *name, int dev, int idx)
{
	struct snd_ctl_elem_id id;
	memset(&id, 0, sizeof(id));
	id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	id.device = dev;
	id.index = idx;
	if (snd_BUG_ON(strlen(name) >= sizeof(id.name)))
		return NULL;
	strcpy(id.name, name);
	return snd_ctl_find_id(codec->card, &id);
}

/**
 * snd_hda_find_mixer_ctl - Find a mixer control element with the given name
 * @codec: HD-audio codec
 * @name: ctl id name string
 *
 * Get the control element with the given id string and IFACE_MIXER.
 */
struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec,
					    const char *name)
{
	return find_mixer_ctl(codec, name, 0, 0);
}
EXPORT_SYMBOL_GPL(snd_hda_find_mixer_ctl);

static int find_empty_mixer_ctl_idx(struct hda_codec *codec, const char *name,
				    int start_idx)
{
	int i, idx;
	/* 16 ctlrs should be large enough */
	for (i = 0, idx = start_idx; i < 16; i++, idx++) {
		if (!find_mixer_ctl(codec, name, 0, idx))
			return idx;
	}
	return -EBUSY;
}

/**
 * snd_hda_ctl_add - Add a control element and assign to the codec
 * @codec: HD-audio codec
 * @nid: corresponding NID (optional)
 * @kctl: the control element to assign
 *
 * Add the given control element to an array inside the codec instance.
 * All control elements belonging to a codec are supposed to be added
 * by this function so that a proper clean-up works at the free or
 * reconfiguration time.
 *
 * If non-zero @nid is passed, the NID is assigned to the control element.
 * The assignment is shown in the codec proc file.
 *
 * snd_hda_ctl_add() checks the control subdev id field whether
 * #HDA_SUBDEV_NID_FLAG bit is set.  If set (and @nid is zero), the lower
 * bits value is taken as the NID to assign. The #HDA_NID_ITEM_AMP bit
 * specifies if kctl->private_value is a HDA amplifier value.
 */
int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid,
		    struct snd_kcontrol *kctl)
{
	int err;
	unsigned short flags = 0;
	struct hda_nid_item *item;

	if (kctl->id.subdevice & HDA_SUBDEV_AMP_FLAG) {
		flags |= HDA_NID_ITEM_AMP;
		if (nid == 0)
			nid = get_amp_nid_(kctl->private_value);
	}
	if ((kctl->id.subdevice & HDA_SUBDEV_NID_FLAG) != 0 && nid == 0)
		nid = kctl->id.subdevice & 0xffff;
	if (kctl->id.subdevice & (HDA_SUBDEV_NID_FLAG|HDA_SUBDEV_AMP_FLAG))
		kctl->id.subdevice = 0;
	err = snd_ctl_add(codec->card, kctl);
	if (err < 0)
		return err;
	item = snd_array_new(&codec->mixers);
	if (!item)
		return -ENOMEM;
	item->kctl = kctl;
	item->nid = nid;
	item->flags = flags;
	return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_ctl_add);

/**
 * snd_hda_add_nid - Assign a NID to a control element
 * @codec: HD-audio codec
 * @nid: corresponding NID (optional)
 * @kctl: the control element to assign
 * @index: index to kctl
 *
 * Add the given control element to an array inside the codec instance.
 * This function is used when #snd_hda_ctl_add cannot be used for 1:1
 * NID:KCTL mapping - for example "Capture Source" selector.
 */
int snd_hda_add_nid(struct hda_codec *codec, struct snd_kcontrol *kctl,
		    unsigned int index, hda_nid_t nid)
{
	struct hda_nid_item *item;

	if (nid > 0) {
		item = snd_array_new(&codec->nids);
		if (!item)
			return -ENOMEM;
		item->kctl = kctl;
		item->index = index;
		item->nid = nid;
		return 0;
	}
	codec_err(codec, "no NID for mapping control %s:%d:%d\n",
		  kctl->id.name, kctl->id.index, index);
	return -EINVAL;
}
EXPORT_SYMBOL_GPL(snd_hda_add_nid);

/**
 * snd_hda_ctls_clear - Clear all controls assigned to the given codec
 * @codec: HD-audio codec
 */
void snd_hda_ctls_clear(struct hda_codec *codec)
{
	int i;
	struct hda_nid_item *items = codec->mixers.list;
	for (i = 0; i < codec->mixers.used; i++)
		snd_ctl_remove(codec->card, items[i].kctl);
	snd_array_free(&codec->mixers);
	snd_array_free(&codec->nids);
}

/**
 * snd_hda_lock_devices - pseudo device locking
 * @bus: the BUS
 *
 * toggle card->shutdown to allow/disallow the device access (as a hack)
 */
int snd_hda_lock_devices(struct hda_bus *bus)
{
	struct snd_card *card = bus->card;
	struct hda_codec *codec;

	spin_lock(&card->files_lock);
	if (card->shutdown)
		goto err_unlock;
	card->shutdown = 1;
	if (!list_empty(&card->ctl_files))
		goto err_clear;

	list_for_each_codec(codec, bus) {
		struct hda_pcm *cpcm;
		list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
			if (!cpcm->pcm)
				continue;
			if (cpcm->pcm->streams[0].substream_opened ||
			    cpcm->pcm->streams[1].substream_opened)
				goto err_clear;
		}
	}
	spin_unlock(&card->files_lock);
	return 0;

 err_clear:
	card->shutdown = 0;
 err_unlock:
	spin_unlock(&card->files_lock);
	return -EINVAL;
}
EXPORT_SYMBOL_GPL(snd_hda_lock_devices);

/**
 * snd_hda_unlock_devices - pseudo device unlocking
 * @bus: the BUS
 */
void snd_hda_unlock_devices(struct hda_bus *bus)
{
	struct snd_card *card = bus->card;

	spin_lock(&card->files_lock);
	card->shutdown = 0;
	spin_unlock(&card->files_lock);
}
EXPORT_SYMBOL_GPL(snd_hda_unlock_devices);

/**
 * snd_hda_codec_reset - Clear all objects assigned to the codec
 * @codec: HD-audio codec
 *
 * This frees the all PCM and control elements assigned to the codec, and
 * clears the caches and restores the pin default configurations.
 *
 * When a device is being used, it returns -EBSY.  If successfully freed,
 * returns zero.
 */
int snd_hda_codec_reset(struct hda_codec *codec)
{
	struct hda_bus *bus = codec->bus;

	if (snd_hda_lock_devices(bus) < 0)
		return -EBUSY;

	/* OK, let it free */
	snd_hdac_device_unregister(&codec->core);

	/* allow device access again */
	snd_hda_unlock_devices(bus);
	return 0;
}

typedef int (*map_slave_func_t)(struct hda_codec *, void *, struct snd_kcontrol *);

/* apply the function to all matching slave ctls in the mixer list */
static int map_slaves(struct hda_codec *codec, const char * const *slaves,
		      const char *suffix, map_slave_func_t func, void *data) 
{
	struct hda_nid_item *items;
	const char * const *s;
	int i, err;

	items = codec->mixers.list;
	for (i = 0; i < codec->mixers.used; i++) {
		struct snd_kcontrol *sctl = items[i].kctl;
		if (!sctl || sctl->id.iface != SNDRV_CTL_ELEM_IFACE_MIXER)
			continue;
		for (s = slaves; *s; s++) {
			char tmpname[sizeof(sctl->id.name)];
			const char *name = *s;
			if (suffix) {
				snprintf(tmpname, sizeof(tmpname), "%s %s",
					 name, suffix);
				name = tmpname;
			}
			if (!strcmp(sctl->id.name, name)) {
				err = func(codec, data, sctl);
				if (err)
					return err;
				break;
			}
		}
	}
	return 0;
}

static int check_slave_present(struct hda_codec *codec,
			       void *data, struct snd_kcontrol *sctl)
{
	return 1;
}

/* guess the value corresponding to 0dB */
static int get_kctl_0dB_offset(struct hda_codec *codec,
			       struct snd_kcontrol *kctl, int *step_to_check)
{
	int _tlv[4];
	const int *tlv = NULL;
	int val = -1;

	if ((kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) &&
	    kctl->tlv.c == snd_hda_mixer_amp_tlv) {
		get_ctl_amp_tlv(kctl, _tlv);
		tlv = _tlv;
	} else if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_READ)
		tlv = kctl->tlv.p;
	if (tlv && tlv[0] == SNDRV_CTL_TLVT_DB_SCALE) {
		int step = tlv[3];
		step &= ~TLV_DB_SCALE_MUTE;
		if (!step)
			return -1;
		if (*step_to_check && *step_to_check != step) {
			codec_err(codec, "Mismatching dB step for vmaster slave (%d!=%d)\n",
-				   *step_to_check, step);
			return -1;
		}
		*step_to_check = step;
		val = -tlv[2] / step;
	}
	return val;
}

/* call kctl->put with the given value(s) */
static int put_kctl_with_value(struct snd_kcontrol *kctl, int val)
{
	struct snd_ctl_elem_value *ucontrol;
	ucontrol = kzalloc(sizeof(*ucontrol), GFP_KERNEL);
	if (!ucontrol)
		return -ENOMEM;
	ucontrol->value.integer.value[0] = val;
	ucontrol->value.integer.value[1] = val;
	kctl->put(kctl, ucontrol);
	kfree(ucontrol);
	return 0;
}

/* initialize the slave volume with 0dB */
static int init_slave_0dB(struct hda_codec *codec,
			  void *data, struct snd_kcontrol *slave)
{
	int offset = get_kctl_0dB_offset(codec, slave, data);
	if (offset > 0)
		put_kctl_with_value(slave, offset);
	return 0;
}

/* unmute the slave */
static int init_slave_unmute(struct hda_codec *codec,
			     void *data, struct snd_kcontrol *slave)
{
	return put_kctl_with_value(slave, 1);
}

static int add_slave(struct hda_codec *codec,
		     void *data, struct snd_kcontrol *slave)
{
	return snd_ctl_add_slave(data, slave);
}

/**
 * __snd_hda_add_vmaster - create a virtual master control and add slaves
 * @codec: HD-audio codec
 * @name: vmaster control name
 * @tlv: TLV data (optional)
 * @slaves: slave control names (optional)
 * @suffix: suffix string to each slave name (optional)
 * @init_slave_vol: initialize slaves to unmute/0dB
 * @ctl_ret: store the vmaster kcontrol in return
 *
 * Create a virtual master control with the given name.  The TLV data
 * must be either NULL or a valid data.
 *
 * @slaves is a NULL-terminated array of strings, each of which is a
 * slave control name.  All controls with these names are assigned to
 * the new virtual master control.
 *
 * This function returns zero if successful or a negative error code.
 */
int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
			unsigned int *tlv, const char * const *slaves,
			  const char *suffix, bool init_slave_vol,
			  struct snd_kcontrol **ctl_ret)
{
	struct snd_kcontrol *kctl;
	int err;

	if (ctl_ret)
		*ctl_ret = NULL;

	err = map_slaves(codec, slaves, suffix, check_slave_present, NULL);
	if (err != 1) {
		codec_dbg(codec, "No slave found for %s\n", name);
		return 0;
	}
	kctl = snd_ctl_make_virtual_master(name, tlv);
	if (!kctl)
		return -ENOMEM;
	err = snd_hda_ctl_add(codec, 0, kctl);
	if (err < 0)
		return err;

	err = map_slaves(codec, slaves, suffix, add_slave, kctl);
	if (err < 0)
		return err;

	/* init with master mute & zero volume */
	put_kctl_with_value(kctl, 0);
	if (init_slave_vol) {
		int step = 0;
		map_slaves(codec, slaves, suffix,
			   tlv ? init_slave_0dB : init_slave_unmute, &step);
	}

	if (ctl_ret)
		*ctl_ret = kctl;
	return 0;
}
EXPORT_SYMBOL_GPL(__snd_hda_add_vmaster);

/*
 * mute-LED control using vmaster
 */
static int vmaster_mute_mode_info(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_info *uinfo)
{
	static const char * const texts[] = {
		"On", "Off", "Follow Master"
	};

	return snd_ctl_enum_info(uinfo, 1, 3, texts);
}

static int vmaster_mute_mode_get(struct snd_kcontrol *kcontrol,
				 struct snd_ctl_elem_value *ucontrol)
{
	struct hda_vmaster_mute_hook *hook = snd_kcontrol_chip(kcontrol);
	ucontrol->value.enumerated.item[0] = hook->mute_mode;
	return 0;
}

static int vmaster_mute_mode_put(struct snd_kcontrol *kcontrol,
				 struct snd_ctl_elem_value *ucontrol)
{
	struct hda_vmaster_mute_hook *hook = snd_kcontrol_chip(kcontrol);
	unsigned int old_mode = hook->mute_mode;

	hook->mute_mode = ucontrol->value.enumerated.item[0];
	if (hook->mute_mode > HDA_VMUTE_FOLLOW_MASTER)
		hook->mute_mode = HDA_VMUTE_FOLLOW_MASTER;
	if (old_mode == hook->mute_mode)
		return 0;
	snd_hda_sync_vmaster_hook(hook);
	return 1;
}

static const struct snd_kcontrol_new vmaster_mute_mode = {
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "Mute-LED Mode",
	.info = vmaster_mute_mode_info,
	.get = vmaster_mute_mode_get,
	.put = vmaster_mute_mode_put,
};

/* meta hook to call each driver's vmaster hook */
static void vmaster_hook(void *private_data, int enabled)
{
	struct hda_vmaster_mute_hook *hook = private_data;

	if (hook->mute_mode != HDA_VMUTE_FOLLOW_MASTER)
		enabled = hook->mute_mode;
	hook->hook(hook->codec, enabled);
}

/**
 * snd_hda_add_vmaster_hook - Add a vmaster hook for mute-LED
 * @codec: the HDA codec
 * @hook: the vmaster hook object
 * @expose_enum_ctl: flag to create an enum ctl
 *
 * Add a mute-LED hook with the given vmaster switch kctl.
 * When @expose_enum_ctl is set, "Mute-LED Mode" control is automatically
 * created and associated with the given hook.
 */
int snd_hda_add_vmaster_hook(struct hda_codec *codec,
			     struct hda_vmaster_mute_hook *hook,
			     bool expose_enum_ctl)
{
	struct snd_kcontrol *kctl;

	if (!hook->hook || !hook->sw_kctl)
		return 0;
	hook->codec = codec;
	hook->mute_mode = HDA_VMUTE_FOLLOW_MASTER;
	snd_ctl_add_vmaster_hook(hook->sw_kctl, vmaster_hook, hook);
	if (!expose_enum_ctl)
		return 0;
	kctl = snd_ctl_new1(&vmaster_mute_mode, hook);
	if (!kctl)
		return -ENOMEM;
	return snd_hda_ctl_add(codec, 0, kctl);
}
EXPORT_SYMBOL_GPL(snd_hda_add_vmaster_hook);

/**
 * snd_hda_sync_vmaster_hook - Sync vmaster hook
 * @hook: the vmaster hook
 *
 * Call the hook with the current value for synchronization.
 * Should be called in init callback.
 */
void snd_hda_sync_vmaster_hook(struct hda_vmaster_mute_hook *hook)
{
	if (!hook->hook || !hook->codec)
		return;
	/* don't call vmaster hook in the destructor since it might have
	 * been already destroyed
	 */
	if (hook->codec->bus->shutdown)
		return;
	snd_ctl_sync_vmaster_hook(hook->sw_kctl);
}
EXPORT_SYMBOL_GPL(snd_hda_sync_vmaster_hook);


/**
 * snd_hda_mixer_amp_switch_info - Info callback for a standard AMP mixer switch
 * @kcontrol: referred ctl element
 * @uinfo: pointer to get/store the data
 *
 * The control element is supposed to have the private_value field
 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
 */
int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_info *uinfo)
{
	int chs = get_amp_channels(kcontrol);

	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
	uinfo->count = chs == 3 ? 2 : 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 1;
	return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_info);

/**
 * snd_hda_mixer_amp_switch_get - Get callback for a standard AMP mixer switch
 * @kcontrol: ctl element
 * @ucontrol: pointer to get/store the data
 *
 * The control element is supposed to have the private_value field
 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
 */
int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol,
				 struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	hda_nid_t nid = get_amp_nid(kcontrol);
	int chs = get_amp_channels(kcontrol);
	int dir = get_amp_direction(kcontrol);
	int idx = get_amp_index(kcontrol);
	long *valp = ucontrol->value.integer.value;

	if (chs & 1)
		*valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) &
			   HDA_AMP_MUTE) ? 0 : 1;
	if (chs & 2)
		*valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) &
			 HDA_AMP_MUTE) ? 0 : 1;
	return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_get);

/**
 * snd_hda_mixer_amp_switch_put - Put callback for a standard AMP mixer switch
 * @kcontrol: ctl element
 * @ucontrol: pointer to get/store the data
 *
 * The control element is supposed to have the private_value field
 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
 */
int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
				 struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	hda_nid_t nid = get_amp_nid(kcontrol);
	int chs = get_amp_channels(kcontrol);
	int dir = get_amp_direction(kcontrol);
	int idx = get_amp_index(kcontrol);
	long *valp = ucontrol->value.integer.value;
	int change = 0;

	if (chs & 1) {
		change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
						  HDA_AMP_MUTE,
						  *valp ? 0 : HDA_AMP_MUTE);
		valp++;
	}
	if (chs & 2)
		change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
						   HDA_AMP_MUTE,
						   *valp ? 0 : HDA_AMP_MUTE);
	hda_call_check_power_status(codec, nid);
	return change;
}
EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_put);

/*
 * SPDIF out controls
 */

static int snd_hda_spdif_mask_info(struct snd_kcontrol *kcontrol,
				   struct snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
	uinfo->count = 1;
	return 0;
}

static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol,
				   struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
					   IEC958_AES0_NONAUDIO |
					   IEC958_AES0_CON_EMPHASIS_5015 |
					   IEC958_AES0_CON_NOT_COPYRIGHT;
	ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
					   IEC958_AES1_CON_ORIGINAL;
	return 0;
}

static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol,
				   struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
					   IEC958_AES0_NONAUDIO |
					   IEC958_AES0_PRO_EMPHASIS_5015;
	return 0;
}

static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol,
				     struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	int idx = kcontrol->private_value;
	struct hda_spdif_out *spdif;

	mutex_lock(&codec->spdif_mutex);
	spdif = snd_array_elem(&codec->spdif_out, idx);
	ucontrol->value.iec958.status[0] = spdif->status & 0xff;
	ucontrol->value.iec958.status[1] = (spdif->status >> 8) & 0xff;
	ucontrol->value.iec958.status[2] = (spdif->status >> 16) & 0xff;
	ucontrol->value.iec958.status[3] = (spdif->status >> 24) & 0xff;
	mutex_unlock(&codec->spdif_mutex);

	return 0;
}

/* convert from SPDIF status bits to HDA SPDIF bits
 * bit 0 (DigEn) is always set zero (to be filled later)
 */
static unsigned short convert_from_spdif_status(unsigned int sbits)
{
	unsigned short val = 0;

	if (sbits & IEC958_AES0_PROFESSIONAL)
		val |= AC_DIG1_PROFESSIONAL;
	if (sbits & IEC958_AES0_NONAUDIO)
		val |= AC_DIG1_NONAUDIO;
	if (sbits & IEC958_AES0_PROFESSIONAL) {
		if ((sbits & IEC958_AES0_PRO_EMPHASIS) ==
		    IEC958_AES0_PRO_EMPHASIS_5015)
			val |= AC_DIG1_EMPHASIS;
	} else {
		if ((sbits & IEC958_AES0_CON_EMPHASIS) ==
		    IEC958_AES0_CON_EMPHASIS_5015)
			val |= AC_DIG1_EMPHASIS;
		if (!(sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
			val |= AC_DIG1_COPYRIGHT;
		if (sbits & (IEC958_AES1_CON_ORIGINAL << 8))
			val |= AC_DIG1_LEVEL;
		val |= sbits & (IEC958_AES1_CON_CATEGORY << 8);
	}
	return val;
}

/* convert to SPDIF status bits from HDA SPDIF bits
 */
static unsigned int convert_to_spdif_status(unsigned short val)
{
	unsigned int sbits = 0;

	if (val & AC_DIG1_NONAUDIO)
		sbits |= IEC958_AES0_NONAUDIO;
	if (val & AC_DIG1_PROFESSIONAL)
		sbits |= IEC958_AES0_PROFESSIONAL;
	if (sbits & IEC958_AES0_PROFESSIONAL) {
		if (val & AC_DIG1_EMPHASIS)
			sbits |= IEC958_AES0_PRO_EMPHASIS_5015;
	} else {
		if (val & AC_DIG1_EMPHASIS)
			sbits |= IEC958_AES0_CON_EMPHASIS_5015;
		if (!(val & AC_DIG1_COPYRIGHT))
			sbits |= IEC958_AES0_CON_NOT_COPYRIGHT;
		if (val & AC_DIG1_LEVEL)
			sbits |= (IEC958_AES1_CON_ORIGINAL << 8);
		sbits |= val & (0x7f << 8);
	}
	return sbits;
}

/* set digital convert verbs both for the given NID and its slaves */
static void set_dig_out(struct hda_codec *codec, hda_nid_t nid,
			int mask, int val)
{
	const hda_nid_t *d;

	snd_hdac_regmap_update(&codec->core, nid, AC_VERB_SET_DIGI_CONVERT_1,
			       mask, val);
	d = codec->slave_dig_outs;
	if (!d)
		return;
	for (; *d; d++)
		snd_hdac_regmap_update(&codec->core, *d,
				       AC_VERB_SET_DIGI_CONVERT_1, mask, val);
}

static inline void set_dig_out_convert(struct hda_codec *codec, hda_nid_t nid,
				       int dig1, int dig2)
{
	unsigned int mask = 0;
	unsigned int val = 0;

	if (dig1 != -1) {
		mask |= 0xff;
		val = dig1;
	}
	if (dig2 != -1) {
		mask |= 0xff00;
		val |= dig2 << 8;
	}
	set_dig_out(codec, nid, mask, val);
}

static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol,
				     struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	int idx = kcontrol->private_value;
	struct hda_spdif_out *spdif;
	hda_nid_t nid;
	unsigned short val;
	int change;

	mutex_lock(&codec->spdif_mutex);
	spdif = snd_array_elem(&codec->spdif_out, idx);
	nid = spdif->nid;
	spdif->status = ucontrol->value.iec958.status[0] |
		((unsigned int)ucontrol->value.iec958.status[1] << 8) |
		((unsigned int)ucontrol->value.iec958.status[2] << 16) |
		((unsigned int)ucontrol->value.iec958.status[3] << 24);
	val = convert_from_spdif_status(spdif->status);
	val |= spdif->ctls & 1;
	change = spdif->ctls != val;
	spdif->ctls = val;
	if (change && nid != (u16)-1)
		set_dig_out_convert(codec, nid, val & 0xff, (val >> 8) & 0xff);
	mutex_unlock(&codec->spdif_mutex);
	return change;
}

#define snd_hda_spdif_out_switch_info	snd_ctl_boolean_mono_info

static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol,
					struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	int idx = kcontrol->private_value;
	struct hda_spdif_out *spdif;

	mutex_lock(&codec->spdif_mutex);
	spdif = snd_array_elem(&codec->spdif_out, idx);
	ucontrol->value.integer.value[0] = spdif->ctls & AC_DIG1_ENABLE;
	mutex_unlock(&codec->spdif_mutex);
	return 0;
}

static inline void set_spdif_ctls(struct hda_codec *codec, hda_nid_t nid,
				  int dig1, int dig2)
{
	set_dig_out_convert(codec, nid, dig1, dig2);
	/* unmute amp switch (if any) */
	if ((get_wcaps(codec, nid) & AC_WCAP_OUT_AMP) &&
	    (dig1 & AC_DIG1_ENABLE))
		snd_hda_codec_amp_stereo(codec, nid, HDA_OUTPUT, 0,
					    HDA_AMP_MUTE, 0);
}

static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol,
					struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	int idx = kcontrol->private_value;
	struct hda_spdif_out *spdif;
	hda_nid_t nid;
	unsigned short val;
	int change;

	mutex_lock(&codec->spdif_mutex);
	spdif = snd_array_elem(&codec->spdif_out, idx);
	nid = spdif->nid;
	val = spdif->ctls & ~AC_DIG1_ENABLE;
	if (ucontrol->value.integer.value[0])
		val |= AC_DIG1_ENABLE;
	change = spdif->ctls != val;
	spdif->ctls = val;
	if (change && nid != (u16)-1)
		set_spdif_ctls(codec, nid, val & 0xff, -1);
	mutex_unlock(&codec->spdif_mutex);
	return change;
}

static struct snd_kcontrol_new dig_mixes[] = {
	{
		.access = SNDRV_CTL_ELEM_ACCESS_READ,
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK),
		.info = snd_hda_spdif_mask_info,
		.get = snd_hda_spdif_cmask_get,
	},
	{
		.access = SNDRV_CTL_ELEM_ACCESS_READ,
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK),
		.info = snd_hda_spdif_mask_info,
		.get = snd_hda_spdif_pmask_get,
	},
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
		.info = snd_hda_spdif_mask_info,
		.get = snd_hda_spdif_default_get,
		.put = snd_hda_spdif_default_put,
	},
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH),
		.info = snd_hda_spdif_out_switch_info,
		.get = snd_hda_spdif_out_switch_get,
		.put = snd_hda_spdif_out_switch_put,
	},
	{ } /* end */
};

/**
 * snd_hda_create_dig_out_ctls - create Output SPDIF-related controls
 * @codec: the HDA codec
 * @associated_nid: NID that new ctls associated with
 * @cvt_nid: converter NID
 * @type: HDA_PCM_TYPE_*
 * Creates controls related with the digital output.
 * Called from each patch supporting the digital out.
 *
 * Returns 0 if successful, or a negative error code.
 */
int snd_hda_create_dig_out_ctls(struct hda_codec *codec,
				hda_nid_t associated_nid,
				hda_nid_t cvt_nid,
				int type)
{
	int err;
	struct snd_kcontrol *kctl;
	struct snd_kcontrol_new *dig_mix;
	int idx = 0;
	int val = 0;
	const int spdif_index = 16;
	struct hda_spdif_out *spdif;
	struct hda_bus *bus = codec->bus;

	if (bus->primary_dig_out_type == HDA_PCM_TYPE_HDMI &&
	    type == HDA_PCM_TYPE_SPDIF) {
		idx = spdif_index;
	} else if (bus->primary_dig_out_type == HDA_PCM_TYPE_SPDIF &&
		   type == HDA_PCM_TYPE_HDMI) {
		/* suppose a single SPDIF device */
		for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
			kctl = find_mixer_ctl(codec, dig_mix->name, 0, 0);
			if (!kctl)
				break;
			kctl->id.index = spdif_index;
		}
		bus->primary_dig_out_type = HDA_PCM_TYPE_HDMI;
	}
	if (!bus->primary_dig_out_type)
		bus->primary_dig_out_type = type;

	idx = find_empty_mixer_ctl_idx(codec, "IEC958 Playback Switch", idx);
	if (idx < 0) {
		codec_err(codec, "too many IEC958 outputs\n");
		return -EBUSY;
	}
	spdif = snd_array_new(&codec->spdif_out);
	if (!spdif)
		return -ENOMEM;
	for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
		kctl = snd_ctl_new1(dig_mix, codec);
		if (!kctl)
			return -ENOMEM;
		kctl->id.index = idx;
		kctl->private_value = codec->spdif_out.used - 1;
		err = snd_hda_ctl_add(codec, associated_nid, kctl);
		if (err < 0)
			return err;
	}
	spdif->nid = cvt_nid;
	snd_hdac_regmap_read(&codec->core, cvt_nid,
			     AC_VERB_GET_DIGI_CONVERT_1, &val);
	spdif->ctls = val;
	spdif->status = convert_to_spdif_status(spdif->ctls);
	return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_create_dig_out_ctls);

/**
 * snd_hda_spdif_out_of_nid - get the hda_spdif_out entry from the given NID
 * @codec: the HDA codec
 * @nid: widget NID
 *
 * call within spdif_mutex lock
 */
struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec,
					       hda_nid_t nid)
{
	int i;
	for (i = 0; i < codec->spdif_out.used; i++) {
		struct hda_spdif_out *spdif =
				snd_array_elem(&codec->spdif_out, i);
		if (spdif->nid == nid)
			return spdif;
	}
	return NULL;
}
EXPORT_SYMBOL_GPL(snd_hda_spdif_out_of_nid);

/**
 * snd_hda_spdif_ctls_unassign - Unassign the given SPDIF ctl
 * @codec: the HDA codec
 * @idx: the SPDIF ctl index
 *
 * Unassign the widget from the given SPDIF control.
 */
void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx)
{
	struct hda_spdif_out *spdif;

	mutex_lock(&codec->spdif_mutex);
	spdif = snd_array_elem(&codec->spdif_out, idx);
	spdif->nid = (u16)-1;
	mutex_unlock(&codec->spdif_mutex);
}
EXPORT_SYMBOL_GPL(snd_hda_spdif_ctls_unassign);

/**
 * snd_hda_spdif_ctls_assign - Assign the SPDIF controls to the given NID
 * @codec: the HDA codec
 * @idx: the SPDIF ctl idx
 * @nid: widget NID
 *
 * Assign the widget to the SPDIF control with the given index.
 */
void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid)
{
	struct hda_spdif_out *spdif;
	unsigned short val;

	mutex_lock(&codec->spdif_mutex);
	spdif = snd_array_elem(&codec->spdif_out, idx);
	if (spdif->nid != nid) {
		spdif->nid = nid;
		val = spdif->ctls;
		set_spdif_ctls(codec, nid, val & 0xff, (val >> 8) & 0xff);
	}
	mutex_unlock(&codec->spdif_mutex);
}
EXPORT_SYMBOL_GPL(snd_hda_spdif_ctls_assign);

/*
 * SPDIF sharing with analog output
 */
static int spdif_share_sw_get(struct snd_kcontrol *kcontrol,
			      struct snd_ctl_elem_value *ucontrol)
{
	struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol);
	ucontrol->value.integer.value[0] = mout->share_spdif;
	return 0;
}

static int spdif_share_sw_put(struct snd_kcontrol *kcontrol,
			      struct snd_ctl_elem_value *ucontrol)
{
	struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol);
	mout->share_spdif = !!ucontrol->value.integer.value[0];
	return 0;
}

static const struct snd_kcontrol_new spdif_share_sw = {
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "IEC958 Default PCM Playback Switch",
	.info = snd_ctl_boolean_mono_info,
	.get = spdif_share_sw_get,
	.put = spdif_share_sw_put,
};

/**
 * snd_hda_create_spdif_share_sw - create Default PCM switch
 * @codec: the HDA codec
 * @mout: multi-out instance
 */
int snd_hda_create_spdif_share_sw(struct hda_codec *codec,
				  struct hda_multi_out *mout)
{
	struct snd_kcontrol *kctl;

	if (!mout->dig_out_nid)
		return 0;

	kctl = snd_ctl_new1(&spdif_share_sw, mout);
	if (!kctl)
		return -ENOMEM;
	/* ATTENTION: here mout is passed as private_data, instead of codec */
	return snd_hda_ctl_add(codec, mout->dig_out_nid, kctl);
}
EXPORT_SYMBOL_GPL(snd_hda_create_spdif_share_sw);

/*
 * SPDIF input
 */

#define snd_hda_spdif_in_switch_info	snd_hda_spdif_out_switch_info

static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol,
				       struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);

	ucontrol->value.integer.value[0] = codec->spdif_in_enable;
	return 0;
}

static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol,
				       struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	hda_nid_t nid = kcontrol->private_value;
	unsigned int val = !!ucontrol->value.integer.value[0];
	int change;

	mutex_lock(&codec->spdif_mutex);
	change = codec->spdif_in_enable != val;
	if (change) {
		codec->spdif_in_enable = val;
		snd_hdac_regmap_write(&codec->core, nid,
				      AC_VERB_SET_DIGI_CONVERT_1, val);
	}
	mutex_unlock(&codec->spdif_mutex);
	return change;
}

static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol,
				       struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	hda_nid_t nid = kcontrol->private_value;
	unsigned int val;
	unsigned int sbits;

	snd_hdac_regmap_read(&codec->core, nid,
			     AC_VERB_GET_DIGI_CONVERT_1, &val);
	sbits = convert_to_spdif_status(val);
	ucontrol->value.iec958.status[0] = sbits;
	ucontrol->value.iec958.status[1] = sbits >> 8;
	ucontrol->value.iec958.status[2] = sbits >> 16;
	ucontrol->value.iec958.status[3] = sbits >> 24;
	return 0;
}

static struct snd_kcontrol_new dig_in_ctls[] = {
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = SNDRV_CTL_NAME_IEC958("", CAPTURE, SWITCH),
		.info = snd_hda_spdif_in_switch_info,
		.get = snd_hda_spdif_in_switch_get,
		.put = snd_hda_spdif_in_switch_put,
	},
	{
		.access = SNDRV_CTL_ELEM_ACCESS_READ,
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT),
		.info = snd_hda_spdif_mask_info,
		.get = snd_hda_spdif_in_status_get,
	},
	{ } /* end */
};

/**
 * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls
 * @codec: the HDA codec
 * @nid: audio in widget NID
 *
 * Creates controls related with the SPDIF input.
 * Called from each patch supporting the SPDIF in.
 *
 * Returns 0 if successful, or a negative error code.
 */
int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid)
{
	int err;
	struct snd_kcontrol *kctl;
	struct snd_kcontrol_new *dig_mix;
	int idx;

	idx = find_empty_mixer_ctl_idx(codec, "IEC958 Capture Switch", 0);
	if (idx < 0) {
		codec_err(codec, "too many IEC958 inputs\n");
		return -EBUSY;
	}
	for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) {
		kctl = snd_ctl_new1(dig_mix, codec);
		if (!kctl)
			return -ENOMEM;
		kctl->private_value = nid;
		err = snd_hda_ctl_add(codec, nid, kctl);
		if (err < 0)
			return err;
	}
	codec->spdif_in_enable =
		snd_hda_codec_read(codec, nid, 0,
				   AC_VERB_GET_DIGI_CONVERT_1, 0) &
		AC_DIG1_ENABLE;
	return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_create_spdif_in_ctls);

/**
 * snd_hda_codec_set_power_to_all - Set the power state to all widgets
 * @codec: the HDA codec
 * @fg: function group (not used now)
 * @power_state: the power state to set (AC_PWRST_*)
 *
 * Set the given power state to all widgets that have the power control.
 * If the codec has power_filter set, it evaluates the power state and
 * filter out if it's unchanged as D3.
 */
void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg,
				    unsigned int power_state)
{
	hda_nid_t nid;

	for_each_hda_codec_node(nid, codec) {
		unsigned int wcaps = get_wcaps(codec, nid);
		unsigned int state = power_state;
		if (!(wcaps & AC_WCAP_POWER))
			continue;
		if (codec->power_filter) {
			state = codec->power_filter(codec, nid, power_state);
			if (state != power_state && power_state == AC_PWRST_D3)
				continue;
		}
		snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE,
				    state);
	}
}
EXPORT_SYMBOL_GPL(snd_hda_codec_set_power_to_all);

/*
 * wait until the state is reached, returns the current state
 */
static unsigned int hda_sync_power_state(struct hda_codec *codec,
					 hda_nid_t fg,
					 unsigned int power_state)
{
	unsigned long end_time = jiffies + msecs_to_jiffies(500);
	unsigned int state, actual_state;

	for (;;) {
		state = snd_hda_codec_read(codec, fg, 0,
					   AC_VERB_GET_POWER_STATE, 0);
		if (state & AC_PWRST_ERROR)
			break;
		actual_state = (state >> 4) & 0x0f;
		if (actual_state == power_state)
			break;
		if (time_after_eq(jiffies, end_time))
			break;
		/* wait until the codec reachs to the target state */
		msleep(1);
	}
	return state;
}

/**
 * snd_hda_codec_eapd_power_filter - A power filter callback for EAPD
 * @codec: the HDA codec
 * @nid: widget NID
 * @power_state: power state to evalue
 *
 * Don't power down the widget if it controls eapd and EAPD_BTLENABLE is set.
 * This can be used a codec power_filter callback.
 */
unsigned int snd_hda_codec_eapd_power_filter(struct hda_codec *codec,
					     hda_nid_t nid,
					     unsigned int power_state)
{
	if (nid == codec->core.afg || nid == codec->core.mfg)
		return power_state;
	if (power_state == AC_PWRST_D3 &&
	    get_wcaps_type(get_wcaps(codec, nid)) == AC_WID_PIN &&
	    (snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_EAPD)) {
		int eapd = snd_hda_codec_read(codec, nid, 0,
					      AC_VERB_GET_EAPD_BTLENABLE, 0);
		if (eapd & 0x02)
			return AC_PWRST_D0;
	}
	return power_state;
}
EXPORT_SYMBOL_GPL(snd_hda_codec_eapd_power_filter);

/*
 * set power state of the codec, and return the power state
 */
static unsigned int hda_set_power_state(struct hda_codec *codec,
					unsigned int power_state)
{
	hda_nid_t fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
	int count;
	unsigned int state;
	int flags = 0;

	/* this delay seems necessary to avoid click noise at power-down */
	if (power_state == AC_PWRST_D3) {
		if (codec->depop_delay < 0)
			msleep(codec_has_epss(codec) ? 10 : 100);
		else if (codec->depop_delay > 0)
			msleep(codec->depop_delay);
		flags = HDA_RW_NO_RESPONSE_FALLBACK;
	}

	/* repeat power states setting at most 10 times*/
	for (count = 0; count < 10; count++) {
		if (codec->patch_ops.set_power_state)
			codec->patch_ops.set_power_state(codec, fg,
							 power_state);
		else {
			state = power_state;
			if (codec->power_filter)
				state = codec->power_filter(codec, fg, state);
			if (state == power_state || power_state != AC_PWRST_D3)
				snd_hda_codec_read(codec, fg, flags,
						   AC_VERB_SET_POWER_STATE,
						   state);
			snd_hda_codec_set_power_to_all(codec, fg, power_state);
		}
		state = hda_sync_power_state(codec, fg, power_state);
		if (!(state & AC_PWRST_ERROR))
			break;
	}

	return state;
}

/* sync power states of all widgets;
 * this is called at the end of codec parsing
 */
static void sync_power_up_states(struct hda_codec *codec)
{
	hda_nid_t nid;

	/* don't care if no filter is used */
	if (!codec->power_filter)
		return;

	for_each_hda_codec_node(nid, codec) {
		unsigned int wcaps = get_wcaps(codec, nid);
		unsigned int target;
		if (!(wcaps & AC_WCAP_POWER))
			continue;
		target = codec->power_filter(codec, nid, AC_PWRST_D0);
		if (target == AC_PWRST_D0)
			continue;
		if (!snd_hda_check_power_state(codec, nid, target))
			snd_hda_codec_write(codec, nid, 0,
					    AC_VERB_SET_POWER_STATE, target);
	}
}

#ifdef CONFIG_SND_HDA_RECONFIG
/* execute additional init verbs */
static void hda_exec_init_verbs(struct hda_codec *codec)
{
	if (codec->init_verbs.list)
		snd_hda_sequence_write(codec, codec->init_verbs.list);
}
#else
static inline void hda_exec_init_verbs(struct hda_codec *codec) {}
#endif

#ifdef CONFIG_PM
/* update the power on/off account with the current jiffies */
static void update_power_acct(struct hda_codec *codec, bool on)
{
	unsigned long delta = jiffies - codec->power_jiffies;

	if (on)
		codec->power_on_acct += delta;
	else
		codec->power_off_acct += delta;
	codec->power_jiffies += delta;
}

void snd_hda_update_power_acct(struct hda_codec *codec)
{
	update_power_acct(codec, hda_codec_is_power_on(codec));
}

/*
 * call suspend and power-down; used both from PM and power-save
 * this function returns the power state in the end
 */
static unsigned int hda_call_codec_suspend(struct hda_codec *codec)
{
	unsigned int state;

	atomic_inc(&codec->core.in_pm);

	if (codec->patch_ops.suspend)
		codec->patch_ops.suspend(codec);
	hda_cleanup_all_streams(codec);
	state = hda_set_power_state(codec, AC_PWRST_D3);
	update_power_acct(codec, true);
	atomic_dec(&codec->core.in_pm);
	return state;
}

/*
 * kick up codec; used both from PM and power-save
 */
static void hda_call_codec_resume(struct hda_codec *codec)
{
	atomic_inc(&codec->core.in_pm);

	if (codec->core.regmap)
		regcache_mark_dirty(codec->core.regmap);

	codec->power_jiffies = jiffies;

	hda_set_power_state(codec, AC_PWRST_D0);
	restore_shutup_pins(codec);
	hda_exec_init_verbs(codec);
	snd_hda_jack_set_dirty_all(codec);
	if (codec->patch_ops.resume)
		codec->patch_ops.resume(codec);
	else {
		if (codec->patch_ops.init)
			codec->patch_ops.init(codec);
		if (codec->core.regmap)
			regcache_sync(codec->core.regmap);
	}

	if (codec->jackpoll_interval)
		hda_jackpoll_work(&codec->jackpoll_work.work);
	else
		snd_hda_jack_report_sync(codec);
	atomic_dec(&codec->core.in_pm);
}

static int hda_codec_runtime_suspend(struct device *dev)
{
	struct hda_codec *codec = dev_to_hda_codec(dev);
	struct hda_pcm *pcm;
	unsigned int state;

	cancel_delayed_work_sync(&codec->jackpoll_work);
	list_for_each_entry(pcm, &codec->pcm_list_head, list)
		snd_pcm_suspend_all(pcm->pcm);
	state = hda_call_codec_suspend(codec);
	if (codec_has_clkstop(codec) && codec_has_epss(codec) &&
	    (state & AC_PWRST_CLK_STOP_OK))
		snd_hdac_codec_link_down(&codec->core);
	snd_hdac_link_power(&codec->core, false);
	return 0;
}

static int hda_codec_runtime_resume(struct device *dev)
{
	struct hda_codec *codec = dev_to_hda_codec(dev);

	snd_hdac_link_power(&codec->core, true);
	snd_hdac_codec_link_up(&codec->core);
	hda_call_codec_resume(codec);
	pm_runtime_mark_last_busy(dev);
	return 0;
}
#endif /* CONFIG_PM */

/* referred in hda_bind.c */
const struct dev_pm_ops hda_codec_driver_pm = {
	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
				pm_runtime_force_resume)
	SET_RUNTIME_PM_OPS(hda_codec_runtime_suspend, hda_codec_runtime_resume,
			   NULL)
};

/*
 * add standard channel maps if not specified
 */
static int add_std_chmaps(struct hda_codec *codec)
{
	struct hda_pcm *pcm;
	int str, err;

	list_for_each_entry(pcm, &codec->pcm_list_head, list) {
		for (str = 0; str < 2; str++) {
			struct hda_pcm_stream *hinfo = &pcm->stream[str];
			struct snd_pcm_chmap *chmap;
			const struct snd_pcm_chmap_elem *elem;

			if (!pcm->pcm || pcm->own_chmap || !hinfo->substreams)
				continue;
			elem = hinfo->chmap ? hinfo->chmap : snd_pcm_std_chmaps;
			err = snd_pcm_add_chmap_ctls(pcm->pcm, str, elem,
						     hinfo->channels_max,
						     0, &chmap);
			if (err < 0)
				return err;
			chmap->channel_mask = SND_PCM_CHMAP_MASK_2468;
		}
	}
	return 0;
}

/* default channel maps for 2.1 speakers;
 * since HD-audio supports only stereo, odd number channels are omitted
 */
const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[] = {
	{ .channels = 2,
	  .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } },
	{ .channels = 4,
	  .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR,
		   SNDRV_CHMAP_LFE, SNDRV_CHMAP_LFE } },
	{ }
};
EXPORT_SYMBOL_GPL(snd_pcm_2_1_chmaps);

int snd_hda_codec_build_controls(struct hda_codec *codec)
{
	int err = 0;
	hda_exec_init_verbs(codec);
	/* continue to initialize... */
	if (codec->patch_ops.init)
		err = codec->patch_ops.init(codec);
	if (!err && codec->patch_ops.build_controls)
		err = codec->patch_ops.build_controls(codec);
	if (err < 0)
		return err;

	/* we create chmaps here instead of build_pcms */
	err = add_std_chmaps(codec);
	if (err < 0)
		return err;

	if (codec->jackpoll_interval)
		hda_jackpoll_work(&codec->jackpoll_work.work);
	else
		snd_hda_jack_report_sync(codec); /* call at the last init point */
	sync_power_up_states(codec);
	return 0;
}

/*
 * PCM stuff
 */
static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo,
				      struct hda_codec *codec,
				      struct snd_pcm_substream *substream)
{
	return 0;
}

static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo,
				   struct hda_codec *codec,
				   unsigned int stream_tag,
				   unsigned int format,
				   struct snd_pcm_substream *substream)
{
	snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
	return 0;
}

static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo,
				   struct hda_codec *codec,
				   struct snd_pcm_substream *substream)
{
	snd_hda_codec_cleanup_stream(codec, hinfo->nid);
	return 0;
}

static int set_pcm_default_values(struct hda_codec *codec,
				  struct hda_pcm_stream *info)
{
	int err;

	/* query support PCM information from the given NID */
	if (info->nid && (!info->rates || !info->formats)) {
		err = snd_hda_query_supported_pcm(codec, info->nid,
				info->rates ? NULL : &info->rates,
				info->formats ? NULL : &info->formats,
				info->maxbps ? NULL : &info->maxbps);
		if (err < 0)
			return err;
	}
	if (info->ops.open == NULL)
		info->ops.open = hda_pcm_default_open_close;
	if (info->ops.close == NULL)
		info->ops.close = hda_pcm_default_open_close;
	if (info->ops.prepare == NULL) {
		if (snd_BUG_ON(!info->nid))
			return -EINVAL;
		info->ops.prepare = hda_pcm_default_prepare;
	}
	if (info->ops.cleanup == NULL) {
		if (snd_BUG_ON(!info->nid))
			return -EINVAL;
		info->ops.cleanup = hda_pcm_default_cleanup;
	}
	return 0;
}

/*
 * codec prepare/cleanup entries
 */
/**
 * snd_hda_codec_prepare - Prepare a stream
 * @codec: the HDA codec
 * @hinfo: PCM information
 * @stream: stream tag to assign
 * @format: format id to assign
 * @substream: PCM substream to assign
 *
 * Calls the prepare callback set by the codec with the given arguments.
 * Clean up the inactive streams when successful.
 */
int snd_hda_codec_prepare(struct hda_codec *codec,
			  struct hda_pcm_stream *hinfo,
			  unsigned int stream,
			  unsigned int format,
			  struct snd_pcm_substream *substream)
{
	int ret;
	mutex_lock(&codec->bus->prepare_mutex);
	if (hinfo->ops.prepare)
		ret = hinfo->ops.prepare(hinfo, codec, stream, format,
					 substream);
	else
		ret = -ENODEV;
	if (ret >= 0)
		purify_inactive_streams(codec);
	mutex_unlock(&codec->bus->prepare_mutex);
	return ret;
}
EXPORT_SYMBOL_GPL(snd_hda_codec_prepare);

/**
 * snd_hda_codec_cleanup - Prepare a stream
 * @codec: the HDA codec
 * @hinfo: PCM information
 * @substream: PCM substream
 *
 * Calls the cleanup callback set by the codec with the given arguments.
 */
void snd_hda_codec_cleanup(struct hda_codec *codec,
			   struct hda_pcm_stream *hinfo,
			   struct snd_pcm_substream *substream)
{
	mutex_lock(&codec->bus->prepare_mutex);
	if (hinfo->ops.cleanup)
		hinfo->ops.cleanup(hinfo, codec, substream);
	mutex_unlock(&codec->bus->prepare_mutex);
}
EXPORT_SYMBOL_GPL(snd_hda_codec_cleanup);

/* global */
const char *snd_hda_pcm_type_name[HDA_PCM_NTYPES] = {
	"Audio", "SPDIF", "HDMI", "Modem"
};

/*
 * get the empty PCM device number to assign
 */
static int get_empty_pcm_device(struct hda_bus *bus, unsigned int type)
{
	/* audio device indices; not linear to keep compatibility */
	/* assigned to static slots up to dev#10; if more needed, assign
	 * the later slot dynamically (when CONFIG_SND_DYNAMIC_MINORS=y)
	 */
	static int audio_idx[HDA_PCM_NTYPES][5] = {
		[HDA_PCM_TYPE_AUDIO] = { 0, 2, 4, 5, -1 },
		[HDA_PCM_TYPE_SPDIF] = { 1, -1 },
		[HDA_PCM_TYPE_HDMI]  = { 3, 7, 8, 9, -1 },
		[HDA_PCM_TYPE_MODEM] = { 6, -1 },
	};
	int i;

	if (type >= HDA_PCM_NTYPES) {
		dev_err(bus->card->dev, "Invalid PCM type %d\n", type);
		return -EINVAL;
	}

	for (i = 0; audio_idx[type][i] >= 0; i++) {
#ifndef CONFIG_SND_DYNAMIC_MINORS
		if (audio_idx[type][i] >= 8)
			break;
#endif
		if (!test_and_set_bit(audio_idx[type][i], bus->pcm_dev_bits))
			return audio_idx[type][i];
	}

#ifdef CONFIG_SND_DYNAMIC_MINORS
	/* non-fixed slots starting from 10 */
	for (i = 10; i < 32; i++) {
		if (!test_and_set_bit(i, bus->pcm_dev_bits))
			return i;
	}
#endif

	dev_warn(bus->card->dev, "Too many %s devices\n",
		snd_hda_pcm_type_name[type]);
#ifndef CONFIG_SND_DYNAMIC_MINORS
	dev_warn(bus->card->dev,
		 "Consider building the kernel with CONFIG_SND_DYNAMIC_MINORS=y\n");
#endif
	return -EAGAIN;
}

/* call build_pcms ops of the given codec and set up the default parameters */
int snd_hda_codec_parse_pcms(struct hda_codec *codec)
{
	struct hda_pcm *cpcm;
	int err;

	if (!list_empty(&codec->pcm_list_head))
		return 0; /* already parsed */

	if (!codec->patch_ops.build_pcms)
		return 0;

	err = codec->patch_ops.build_pcms(codec);
	if (err < 0) {
		codec_err(codec, "cannot build PCMs for #%d (error %d)\n",
			  codec->core.addr, err);
		return err;
	}

	list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
		int stream;

		for (stream = 0; stream < 2; stream++) {
			struct hda_pcm_stream *info = &cpcm->stream[stream];

			if (!info->substreams)
				continue;
			err = set_pcm_default_values(codec, info);
			if (err < 0) {
				codec_warn(codec,
					   "fail to setup default for PCM %s\n",
					   cpcm->name);
				return err;
			}
		}
	}

	return 0;
}

/* assign all PCMs of the given codec */
int snd_hda_codec_build_pcms(struct hda_codec *codec)
{
	struct hda_bus *bus = codec->bus;
	struct hda_pcm *cpcm;
	int dev, err;

	err = snd_hda_codec_parse_pcms(codec);
	if (err < 0)
		return err;

	/* attach a new PCM streams */
	list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
		if (cpcm->pcm)
			continue; /* already attached */
		if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams)
			continue; /* no substreams assigned */

		dev = get_empty_pcm_device(bus, cpcm->pcm_type);
		if (dev < 0)
			continue; /* no fatal error */
		cpcm->device = dev;
		err =  snd_hda_attach_pcm_stream(bus, codec, cpcm);
		if (err < 0) {
			codec_err(codec,
				  "cannot attach PCM stream %d for codec #%d\n",
				  dev, codec->core.addr);
			continue; /* no fatal error */
		}
	}

	return 0;
}

/**
 * snd_hda_add_new_ctls - create controls from the array
 * @codec: the HDA codec
 * @knew: the array of struct snd_kcontrol_new
 *
 * This helper function creates and add new controls in the given array.
 * The array must be terminated with an empty entry as terminator.
 *
 * Returns 0 if successful, or a negative error code.
 */
int snd_hda_add_new_ctls(struct hda_codec *codec,
			 const struct snd_kcontrol_new *knew)
{
	int err;

	for (; knew->name; knew++) {
		struct snd_kcontrol *kctl;
		int addr = 0, idx = 0;
		if (knew->iface == -1)	/* skip this codec private value */
			continue;
		for (;;) {
			kctl = snd_ctl_new1(knew, codec);
			if (!kctl)
				return -ENOMEM;
			if (addr > 0)
				kctl->id.device = addr;
			if (idx > 0)
				kctl->id.index = idx;
			err = snd_hda_ctl_add(codec, 0, kctl);
			if (!err)
				break;
			/* try first with another device index corresponding to
			 * the codec addr; if it still fails (or it's the
			 * primary codec), then try another control index
			 */
			if (!addr && codec->core.addr)
				addr = codec->core.addr;
			else if (!idx && !knew->index) {
				idx = find_empty_mixer_ctl_idx(codec,
							       knew->name, 0);
				if (idx <= 0)
					return err;
			} else
				return err;
		}
	}
	return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_add_new_ctls);

#ifdef CONFIG_PM
static void codec_set_power_save(struct hda_codec *codec, int delay)
{
	struct device *dev = hda_codec_dev(codec);

	if (delay == 0 && codec->auto_runtime_pm)
		delay = 3000;

	if (delay > 0) {
		pm_runtime_set_autosuspend_delay(dev, delay);
		pm_runtime_use_autosuspend(dev);
		pm_runtime_allow(dev);
		if (!pm_runtime_suspended(dev))
			pm_runtime_mark_last_busy(dev);
	} else {
		pm_runtime_dont_use_autosuspend(dev);
		pm_runtime_forbid(dev);
	}
}

/**
 * snd_hda_set_power_save - reprogram autosuspend for the given delay
 * @bus: HD-audio bus
 * @delay: autosuspend delay in msec, 0 = off
 *
 * Synchronize the runtime PM autosuspend state from the power_save option.
 */
void snd_hda_set_power_save(struct hda_bus *bus, int delay)
{
	struct hda_codec *c;

	list_for_each_codec(c, bus)
		codec_set_power_save(c, delay);
}
EXPORT_SYMBOL_GPL(snd_hda_set_power_save);

/**
 * snd_hda_check_amp_list_power - Check the amp list and update the power
 * @codec: HD-audio codec
 * @check: the object containing an AMP list and the status
 * @nid: NID to check / update
 *
 * Check whether the given NID is in the amp list.  If it's in the list,
 * check the current AMP status, and update the the power-status according
 * to the mute status.
 *
 * This function is supposed to be set or called from the check_power_status
 * patch ops.
 */
int snd_hda_check_amp_list_power(struct hda_codec *codec,
				 struct hda_loopback_check *check,
				 hda_nid_t nid)
{
	const struct hda_amp_list *p;
	int ch, v;

	if (!check->amplist)
		return 0;
	for (p = check->amplist; p->nid; p++) {
		if (p->nid == nid)
			break;
	}
	if (!p->nid)
		return 0; /* nothing changed */

	for (p = check->amplist; p->nid; p++) {
		for (ch = 0; ch < 2; ch++) {
			v = snd_hda_codec_amp_read(codec, p->nid, ch, p->dir,
						   p->idx);
			if (!(v & HDA_AMP_MUTE) && v > 0) {
				if (!check->power_on) {
					check->power_on = 1;
					snd_hda_power_up_pm(codec);
				}
				return 1;
			}
		}
	}
	if (check->power_on) {
		check->power_on = 0;
		snd_hda_power_down_pm(codec);
	}
	return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_check_amp_list_power);
#endif

/*
 * input MUX helper
 */

/**
 * snd_hda_input_mux_info_info - Info callback helper for the input-mux enum
 * @imux: imux helper object
 * @uinfo: pointer to get/store the data
 */
int snd_hda_input_mux_info(const struct hda_input_mux *imux,
			   struct snd_ctl_elem_info *uinfo)
{
	unsigned int index;

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = imux->num_items;
	if (!imux->num_items)
		return 0;
	index = uinfo->value.enumerated.item;
	if (index >= imux->num_items)
		index = imux->num_items - 1;
	strcpy(uinfo->value.enumerated.name, imux->items[index].label);
	return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_input_mux_info);

/**
 * snd_hda_input_mux_info_put - Put callback helper for the input-mux enum
 * @codec: the HDA codec
 * @imux: imux helper object
 * @ucontrol: pointer to get/store the data
 * @nid: input mux NID
 * @cur_val: pointer to get/store the current imux value
 */
int snd_hda_input_mux_put(struct hda_codec *codec,
			  const struct hda_input_mux *imux,
			  struct snd_ctl_elem_value *ucontrol,
			  hda_nid_t nid,
			  unsigned int *cur_val)
{
	unsigned int idx;

	if (!imux->num_items)
		return 0;
	idx = ucontrol->value.enumerated.item[0];
	if (idx >= imux->num_items)
		idx = imux->num_items - 1;
	if (*cur_val == idx)
		return 0;
	snd_hda_codec_write_cache(codec, nid, 0, AC_VERB_SET_CONNECT_SEL,
				  imux->items[idx].index);
	*cur_val = idx;
	return 1;
}
EXPORT_SYMBOL_GPL(snd_hda_input_mux_put);


/**
 * snd_hda_enum_helper_info - Helper for simple enum ctls
 * @kcontrol: ctl element
 * @uinfo: pointer to get/store the data
 * @num_items: number of enum items
 * @texts: enum item string array
 *
 * process kcontrol info callback of a simple string enum array
 * when @num_items is 0 or @texts is NULL, assume a boolean enum array
 */
int snd_hda_enum_helper_info(struct snd_kcontrol *kcontrol,
			     struct snd_ctl_elem_info *uinfo,
			     int num_items, const char * const *texts)
{
	static const char * const texts_default[] = {
		"Disabled", "Enabled"
	};

	if (!texts || !num_items) {
		num_items = 2;
		texts = texts_default;
	}

	return snd_ctl_enum_info(uinfo, 1, num_items, texts);
}
EXPORT_SYMBOL_GPL(snd_hda_enum_helper_info);

/*
 * Multi-channel / digital-out PCM helper functions
 */

/* setup SPDIF output stream */
static void setup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid,
				 unsigned int stream_tag, unsigned int format)
{
	struct hda_spdif_out *spdif;
	unsigned int curr_fmt;
	bool reset;

	spdif = snd_hda_spdif_out_of_nid(codec, nid);
	/* Add sanity check to pass klockwork check.
	 * This should never happen.
	 */
	if (WARN_ON(spdif == NULL))
		return;

	curr_fmt = snd_hda_codec_read(codec, nid, 0,
				      AC_VERB_GET_STREAM_FORMAT, 0);
	reset = codec->spdif_status_reset &&
		(spdif->ctls & AC_DIG1_ENABLE) &&
		curr_fmt != format;

	/* turn off SPDIF if needed; otherwise the IEC958 bits won't be
	   updated */
	if (reset)
		set_dig_out_convert(codec, nid,
				    spdif->ctls & ~AC_DIG1_ENABLE & 0xff,
				    -1);
	snd_hda_codec_setup_stream(codec, nid, stream_tag, 0, format);
	if (codec->slave_dig_outs) {
		const hda_nid_t *d;
		for (d = codec->slave_dig_outs; *d; d++)
			snd_hda_codec_setup_stream(codec, *d, stream_tag, 0,
						   format);
	}
	/* turn on again (if needed) */
	if (reset)
		set_dig_out_convert(codec, nid,
				    spdif->ctls & 0xff, -1);
}

static void cleanup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid)
{
	snd_hda_codec_cleanup_stream(codec, nid);
	if (codec->slave_dig_outs) {
		const hda_nid_t *d;
		for (d = codec->slave_dig_outs; *d; d++)
			snd_hda_codec_cleanup_stream(codec, *d);
	}
}

/**
 * snd_hda_multi_out_dig_open - open the digital out in the exclusive mode
 * @codec: the HDA codec
 * @mout: hda_multi_out object
 */
int snd_hda_multi_out_dig_open(struct hda_codec *codec,
			       struct hda_multi_out *mout)
{
	mutex_lock(&codec->spdif_mutex);
	if (mout->dig_out_used == HDA_DIG_ANALOG_DUP)
		/* already opened as analog dup; reset it once */
		cleanup_dig_out_stream(codec, mout->dig_out_nid);
	mout->dig_out_used = HDA_DIG_EXCLUSIVE;
	mutex_unlock(&codec->spdif_mutex);
	return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_open);

/**
 * snd_hda_multi_out_dig_prepare - prepare the digital out stream
 * @codec: the HDA codec
 * @mout: hda_multi_out object
 * @stream_tag: stream tag to assign
 * @format: format id to assign
 * @substream: PCM substream to assign
 */
int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
				  struct hda_multi_out *mout,
				  unsigned int stream_tag,
				  unsigned int format,
				  struct snd_pcm_substream *substream)
{
	mutex_lock(&codec->spdif_mutex);
	setup_dig_out_stream(codec, mout->dig_out_nid, stream_tag, format);
	mutex_unlock(&codec->spdif_mutex);
	return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_prepare);

/**
 * snd_hda_multi_out_dig_cleanup - clean-up the digital out stream
 * @codec: the HDA codec
 * @mout: hda_multi_out object
 */
int snd_hda_multi_out_dig_cleanup(struct hda_codec *codec,
				  struct hda_multi_out *mout)
{
	mutex_lock(&codec->spdif_mutex);
	cleanup_dig_out_stream(codec, mout->dig_out_nid);
	mutex_unlock(&codec->spdif_mutex);
	return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_cleanup);

/**
 * snd_hda_multi_out_dig_close - release the digital out stream
 * @codec: the HDA codec
 * @mout: hda_multi_out object
 */
int snd_hda_multi_out_dig_close(struct hda_codec *codec,
				struct hda_multi_out *mout)
{
	mutex_lock(&codec->spdif_mutex);
	mout->dig_out_used = 0;
	mutex_unlock(&codec->spdif_mutex);
	return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_close);

/**
 * snd_hda_multi_out_analog_open - open analog outputs
 * @codec: the HDA codec
 * @mout: hda_multi_out object
 * @substream: PCM substream to assign
 * @hinfo: PCM information to assign
 *
 * Open analog outputs and set up the hw-constraints.
 * If the digital outputs can be opened as slave, open the digital
 * outputs, too.
 */
int snd_hda_multi_out_analog_open(struct hda_codec *codec,
				  struct hda_multi_out *mout,
				  struct snd_pcm_substream *substream,
				  struct hda_pcm_stream *hinfo)
{
	struct snd_pcm_runtime *runtime = substream->runtime;
	runtime->hw.channels_max = mout->max_channels;
	if (mout->dig_out_nid) {
		if (!mout->analog_rates) {
			mout->analog_rates = hinfo->rates;
			mout->analog_formats = hinfo->formats;
			mout->analog_maxbps = hinfo->maxbps;
		} else {
			runtime->hw.rates = mout->analog_rates;
			runtime->hw.formats = mout->analog_formats;
			hinfo->maxbps = mout->analog_maxbps;
		}
		if (!mout->spdif_rates) {
			snd_hda_query_supported_pcm(codec, mout->dig_out_nid,
						    &mout->spdif_rates,
						    &mout->spdif_formats,
						    &mout->spdif_maxbps);
		}
		mutex_lock(&codec->spdif_mutex);
		if (mout->share_spdif) {
			if ((runtime->hw.rates & mout->spdif_rates) &&
			    (runtime->hw.formats & mout->spdif_formats)) {
				runtime->hw.rates &= mout->spdif_rates;
				runtime->hw.formats &= mout->spdif_formats;
				if (mout->spdif_maxbps < hinfo->maxbps)
					hinfo->maxbps = mout->spdif_maxbps;
			} else {
				mout->share_spdif = 0;
				/* FIXME: need notify? */
			}
		}
		mutex_unlock(&codec->spdif_mutex);
	}
	return snd_pcm_hw_constraint_step(substream->runtime, 0,
					  SNDRV_PCM_HW_PARAM_CHANNELS, 2);
}
EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_open);

/**
 * snd_hda_multi_out_analog_prepare - Preapre the analog outputs.
 * @codec: the HDA codec
 * @mout: hda_multi_out object
 * @stream_tag: stream tag to assign
 * @format: format id to assign
 * @substream: PCM substream to assign
 *
 * Set up the i/o for analog out.
 * When the digital out is available, copy the front out to digital out, too.
 */
int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
				     struct hda_multi_out *mout,
				     unsigned int stream_tag,
				     unsigned int format,
				     struct snd_pcm_substream *substream)
{
	const hda_nid_t *nids = mout->dac_nids;
	int chs = substream->runtime->channels;
	struct hda_spdif_out *spdif;
	int i;

	mutex_lock(&codec->spdif_mutex);
	spdif = snd_hda_spdif_out_of_nid(codec, mout->dig_out_nid);
	if (mout->dig_out_nid && mout->share_spdif &&
	    mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
		if (chs == 2 && spdif != NULL &&
		    snd_hda_is_supported_format(codec, mout->dig_out_nid,
						format) &&
		    !(spdif->status & IEC958_AES0_NONAUDIO)) {
			mout->dig_out_used = HDA_DIG_ANALOG_DUP;
			setup_dig_out_stream(codec, mout->dig_out_nid,
					     stream_tag, format);
		} else {
			mout->dig_out_used = 0;
			cleanup_dig_out_stream(codec, mout->dig_out_nid);
		}
	}
	mutex_unlock(&codec->spdif_mutex);

	/* front */
	snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag,
				   0, format);
	if (!mout->no_share_stream &&
	    mout->hp_nid && mout->hp_nid != nids[HDA_FRONT])
		/* headphone out will just decode front left/right (stereo) */
		snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag,
					   0, format);
	/* extra outputs copied from front */
	for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++)
		if (!mout->no_share_stream && mout->hp_out_nid[i])
			snd_hda_codec_setup_stream(codec,
						   mout->hp_out_nid[i],
						   stream_tag, 0, format);

	/* surrounds */
	for (i = 1; i < mout->num_dacs; i++) {
		if (chs >= (i + 1) * 2) /* independent out */
			snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
						   i * 2, format);
		else if (!mout->no_share_stream) /* copy front */
			snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
						   0, format);
	}

	/* extra surrounds */
	for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++) {
		int ch = 0;
		if (!mout->extra_out_nid[i])
			break;
		if (chs >= (i + 1) * 2)
			ch = i * 2;
		else if (!mout->no_share_stream)
			break;
		snd_hda_codec_setup_stream(codec, mout->extra_out_nid[i],
					   stream_tag, ch, format);
	}

	return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_prepare);

/**
 * snd_hda_multi_out_analog_cleanup - clean up the setting for analog out
 * @codec: the HDA codec
 * @mout: hda_multi_out object
 */
int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
				     struct hda_multi_out *mout)
{
	const hda_nid_t *nids = mout->dac_nids;
	int i;

	for (i = 0; i < mout->num_dacs; i++)
		snd_hda_codec_cleanup_stream(codec, nids[i]);
	if (mout->hp_nid)
		snd_hda_codec_cleanup_stream(codec, mout->hp_nid);
	for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++)
		if (mout->hp_out_nid[i])
			snd_hda_codec_cleanup_stream(codec,
						     mout->hp_out_nid[i]);
	for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
		if (mout->extra_out_nid[i])
			snd_hda_codec_cleanup_stream(codec,
						     mout->extra_out_nid[i]);
	mutex_lock(&codec->spdif_mutex);
	if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) {
		cleanup_dig_out_stream(codec, mout->dig_out_nid);
		mout->dig_out_used = 0;
	}
	mutex_unlock(&codec->spdif_mutex);
	return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_cleanup);

/**
 * snd_hda_get_default_vref - Get the default (mic) VREF pin bits
 * @codec: the HDA codec
 * @pin: referred pin NID
 *
 * Guess the suitable VREF pin bits to be set as the pin-control value.
 * Note: the function doesn't set the AC_PINCTL_IN_EN bit.
 */
unsigned int snd_hda_get_default_vref(struct hda_codec *codec, hda_nid_t pin)
{
	unsigned int pincap;
	unsigned int oldval;
	oldval = snd_hda_codec_read(codec, pin, 0,
				    AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
	pincap = snd_hda_query_pin_caps(codec, pin);
	pincap = (pincap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
	/* Exception: if the default pin setup is vref50, we give it priority */
	if ((pincap & AC_PINCAP_VREF_80) && oldval != PIN_VREF50)
		return AC_PINCTL_VREF_80;
	else if (pincap & AC_PINCAP_VREF_50)
		return AC_PINCTL_VREF_50;
	else if (pincap & AC_PINCAP_VREF_100)
		return AC_PINCTL_VREF_100;
	else if (pincap & AC_PINCAP_VREF_GRD)
		return AC_PINCTL_VREF_GRD;
	return AC_PINCTL_VREF_HIZ;
}
EXPORT_SYMBOL_GPL(snd_hda_get_default_vref);

/**
 * snd_hda_correct_pin_ctl - correct the pin ctl value for matching with the pin cap
 * @codec: the HDA codec
 * @pin: referred pin NID
 * @val: pin ctl value to audit
 */
unsigned int snd_hda_correct_pin_ctl(struct hda_codec *codec,
				     hda_nid_t pin, unsigned int val)
{
	static unsigned int cap_lists[][2] = {
		{ AC_PINCTL_VREF_100, AC_PINCAP_VREF_100 },
		{ AC_PINCTL_VREF_80, AC_PINCAP_VREF_80 },
		{ AC_PINCTL_VREF_50, AC_PINCAP_VREF_50 },
		{ AC_PINCTL_VREF_GRD, AC_PINCAP_VREF_GRD },
	};
	unsigned int cap;

	if (!val)
		return 0;
	cap = snd_hda_query_pin_caps(codec, pin);
	if (!cap)
		return val; /* don't know what to do... */

	if (val & AC_PINCTL_OUT_EN) {
		if (!(cap & AC_PINCAP_OUT))
			val &= ~(AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN);
		else if ((val & AC_PINCTL_HP_EN) && !(cap & AC_PINCAP_HP_DRV))
			val &= ~AC_PINCTL_HP_EN;
	}

	if (val & AC_PINCTL_IN_EN) {
		if (!(cap & AC_PINCAP_IN))
			val &= ~(AC_PINCTL_IN_EN | AC_PINCTL_VREFEN);
		else {
			unsigned int vcap, vref;
			int i;
			vcap = (cap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
			vref = val & AC_PINCTL_VREFEN;
			for (i = 0; i < ARRAY_SIZE(cap_lists); i++) {
				if (vref == cap_lists[i][0] &&
				    !(vcap & cap_lists[i][1])) {
					if (i == ARRAY_SIZE(cap_lists) - 1)
						vref = AC_PINCTL_VREF_HIZ;
					else
						vref = cap_lists[i + 1][0];
				}
			}
			val &= ~AC_PINCTL_VREFEN;
			val |= vref;
		}
	}

	return val;
}
EXPORT_SYMBOL_GPL(snd_hda_correct_pin_ctl);

/**
 * _snd_hda_pin_ctl - Helper to set pin ctl value
 * @codec: the HDA codec
 * @pin: referred pin NID
 * @val: pin control value to set
 * @cached: access over codec pinctl cache or direct write
 *
 * This function is a helper to set a pin ctl value more safely.
 * It corrects the pin ctl value via snd_hda_correct_pin_ctl(), stores the
 * value in pin target array via snd_hda_codec_set_pin_target(), then
 * actually writes the value via either snd_hda_codec_update_cache() or
 * snd_hda_codec_write() depending on @cached flag.
 */
int _snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin,
			 unsigned int val, bool cached)
{
	val = snd_hda_correct_pin_ctl(codec, pin, val);
	snd_hda_codec_set_pin_target(codec, pin, val);
	if (cached)
		return snd_hda_codec_update_cache(codec, pin, 0,
				AC_VERB_SET_PIN_WIDGET_CONTROL, val);
	else
		return snd_hda_codec_write(codec, pin, 0,
					   AC_VERB_SET_PIN_WIDGET_CONTROL, val);
}
EXPORT_SYMBOL_GPL(_snd_hda_set_pin_ctl);

/**
 * snd_hda_add_imux_item - Add an item to input_mux
 * @codec: the HDA codec
 * @imux: imux helper object
 * @label: the name of imux item to assign
 * @index: index number of imux item to assign
 * @type_idx: pointer to store the resultant label index
 *
 * When the same label is used already in the existing items, the number
 * suffix is appended to the label.  This label index number is stored
 * to type_idx when non-NULL pointer is given.
 */
int snd_hda_add_imux_item(struct hda_codec *codec,
			  struct hda_input_mux *imux, const char *label,
			  int index, int *type_idx)
{
	int i, label_idx = 0;
	if (imux->num_items >= HDA_MAX_NUM_INPUTS) {
		codec_err(codec, "hda_codec: Too many imux items!\n");
		return -EINVAL;
	}
	for (i = 0; i < imux->num_items; i++) {
		if (!strncmp(label, imux->items[i].label, strlen(label)))
			label_idx++;
	}
	if (type_idx)
		*type_idx = label_idx;
	if (label_idx > 0)
		snprintf(imux->items[imux->num_items].label,
			 sizeof(imux->items[imux->num_items].label),
			 "%s %d", label, label_idx);
	else
		strlcpy(imux->items[imux->num_items].label, label,
			sizeof(imux->items[imux->num_items].label));
	imux->items[imux->num_items].index = index;
	imux->num_items++;
	return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_add_imux_item);

/**
 * snd_hda_bus_reset_codecs - Reset the bus
 * @bus: HD-audio bus
 */
void snd_hda_bus_reset_codecs(struct hda_bus *bus)
{
	struct hda_codec *codec;

	list_for_each_codec(codec, bus) {
		/* FIXME: maybe a better way needed for forced reset */
		cancel_delayed_work_sync(&codec->jackpoll_work);
#ifdef CONFIG_PM
		if (hda_codec_is_power_on(codec)) {
			hda_call_codec_suspend(codec);
			hda_call_codec_resume(codec);
		}
#endif
	}
}

/**
 * snd_print_pcm_bits - Print the supported PCM fmt bits to the string buffer
 * @pcm: PCM caps bits
 * @buf: the string buffer to write
 * @buflen: the max buffer length
 *
 * used by hda_proc.c and hda_eld.c
 */
void snd_print_pcm_bits(int pcm, char *buf, int buflen)
{
	static unsigned int bits[] = { 8, 16, 20, 24, 32 };
	int i, j;

	for (i = 0, j = 0; i < ARRAY_SIZE(bits); i++)
		if (pcm & (AC_SUPPCM_BITS_8 << i))
			j += snprintf(buf + j, buflen - j,  " %d", bits[i]);

	buf[j] = '\0'; /* necessary when j == 0 */
}
EXPORT_SYMBOL_GPL(snd_print_pcm_bits);

MODULE_DESCRIPTION("HDA codec core");
MODULE_LICENSE("GPL");