summaryrefslogtreecommitdiffstats
path: root/drivers/hid/hid-sony.c
blob: 93942063b51b6011dd0e73fce7e4a07fdfa0d459 (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
// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  HID driver for Sony / PS2 / PS3 / PS4 BD devices.
 *
 *  Copyright (c) 1999 Andreas Gal
 *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
 *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
 *  Copyright (c) 2008 Jiri Slaby
 *  Copyright (c) 2012 David Dillow <dave@thedillows.org>
 *  Copyright (c) 2006-2013 Jiri Kosina
 *  Copyright (c) 2013 Colin Leitner <colin.leitner@gmail.com>
 *  Copyright (c) 2014-2016 Frank Praznik <frank.praznik@gmail.com>
 *  Copyright (c) 2018 Todd Kelner
 */

/*
 */

/*
 * NOTE: in order for the Sony PS3 BD Remote Control to be found by
 * a Bluetooth host, the key combination Start+Enter has to be kept pressed
 * for about 7 seconds with the Bluetooth Host Controller in discovering mode.
 *
 * There will be no PIN request from the device.
 */

#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/leds.h>
#include <linux/power_supply.h>
#include <linux/spinlock.h>
#include <linux/list.h>
#include <linux/idr.h>
#include <linux/input/mt.h>
#include <linux/crc32.h>
#include <asm/unaligned.h>

#include "hid-ids.h"

#define VAIO_RDESC_CONSTANT       BIT(0)
#define SIXAXIS_CONTROLLER_USB    BIT(1)
#define SIXAXIS_CONTROLLER_BT     BIT(2)
#define BUZZ_CONTROLLER           BIT(3)
#define PS3REMOTE                 BIT(4)
#define DUALSHOCK4_CONTROLLER_USB BIT(5)
#define DUALSHOCK4_CONTROLLER_BT  BIT(6)
#define DUALSHOCK4_DONGLE         BIT(7)
#define MOTION_CONTROLLER_USB     BIT(8)
#define MOTION_CONTROLLER_BT      BIT(9)
#define NAVIGATION_CONTROLLER_USB BIT(10)
#define NAVIGATION_CONTROLLER_BT  BIT(11)
#define SINO_LITE_CONTROLLER      BIT(12)
#define FUTUREMAX_DANCE_MAT       BIT(13)
#define NSG_MR5U_REMOTE_BT        BIT(14)
#define NSG_MR7U_REMOTE_BT        BIT(15)
#define SHANWAN_GAMEPAD           BIT(16)

#define SIXAXIS_CONTROLLER (SIXAXIS_CONTROLLER_USB | SIXAXIS_CONTROLLER_BT)
#define MOTION_CONTROLLER (MOTION_CONTROLLER_USB | MOTION_CONTROLLER_BT)
#define NAVIGATION_CONTROLLER (NAVIGATION_CONTROLLER_USB |\
				NAVIGATION_CONTROLLER_BT)
#define DUALSHOCK4_CONTROLLER (DUALSHOCK4_CONTROLLER_USB |\
				DUALSHOCK4_CONTROLLER_BT | \
				DUALSHOCK4_DONGLE)
#define SONY_LED_SUPPORT (SIXAXIS_CONTROLLER | BUZZ_CONTROLLER |\
				DUALSHOCK4_CONTROLLER | MOTION_CONTROLLER |\
				NAVIGATION_CONTROLLER)
#define SONY_BATTERY_SUPPORT (SIXAXIS_CONTROLLER | DUALSHOCK4_CONTROLLER |\
				MOTION_CONTROLLER_BT | NAVIGATION_CONTROLLER)
#define SONY_FF_SUPPORT (SIXAXIS_CONTROLLER | DUALSHOCK4_CONTROLLER |\
				MOTION_CONTROLLER)
#define SONY_BT_DEVICE (SIXAXIS_CONTROLLER_BT | DUALSHOCK4_CONTROLLER_BT |\
			MOTION_CONTROLLER_BT | NAVIGATION_CONTROLLER_BT)
#define NSG_MRXU_REMOTE (NSG_MR5U_REMOTE_BT | NSG_MR7U_REMOTE_BT)

#define MAX_LEDS 4
#define NSG_MRXU_MAX_X 1667
#define NSG_MRXU_MAX_Y 1868


/* PS/3 Motion controller */
static u8 motion_rdesc[] = {
	0x05, 0x01,         /*  Usage Page (Desktop),               */
	0x09, 0x04,         /*  Usage (Joystick),                   */
	0xA1, 0x01,         /*  Collection (Application),           */
	0xA1, 0x02,         /*      Collection (Logical),           */
	0x85, 0x01,         /*          Report ID (1),              */
	0x75, 0x01,         /*          Report Size (1),            */
	0x95, 0x15,         /*          Report Count (21),          */
	0x15, 0x00,         /*          Logical Minimum (0),        */
	0x25, 0x01,         /*          Logical Maximum (1),        */
	0x35, 0x00,         /*          Physical Minimum (0),       */
	0x45, 0x01,         /*          Physical Maximum (1),       */
	0x05, 0x09,         /*          Usage Page (Button),        */
	0x19, 0x01,         /*          Usage Minimum (01h),        */
	0x29, 0x15,         /*          Usage Maximum (15h),        */
	0x81, 0x02,         /*          Input (Variable),           * Buttons */
	0x95, 0x0B,         /*          Report Count (11),          */
	0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),         */
	0x81, 0x03,         /*          Input (Constant, Variable), * Padding */
	0x15, 0x00,         /*          Logical Minimum (0),        */
	0x26, 0xFF, 0x00,   /*          Logical Maximum (255),      */
	0x05, 0x01,         /*          Usage Page (Desktop),       */
	0xA1, 0x00,         /*          Collection (Physical),      */
	0x75, 0x08,         /*              Report Size (8),        */
	0x95, 0x01,         /*              Report Count (1),       */
	0x35, 0x00,         /*              Physical Minimum (0),   */
	0x46, 0xFF, 0x00,   /*              Physical Maximum (255), */
	0x09, 0x30,         /*              Usage (X),              */
	0x81, 0x02,         /*              Input (Variable),       * Trigger */
	0xC0,               /*          End Collection,             */
	0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),         */
	0x75, 0x08,         /*          Report Size (8),            */
	0x95, 0x07,         /*          Report Count (7),           * skip 7 bytes */
	0x81, 0x02,         /*          Input (Variable),           */
	0x05, 0x01,         /*          Usage Page (Desktop),       */
	0x75, 0x10,         /*          Report Size (16),           */
	0x46, 0xFF, 0xFF,   /*          Physical Maximum (65535),   */
	0x27, 0xFF, 0xFF, 0x00, 0x00, /*      Logical Maximum (65535),    */
	0x95, 0x03,         /*          Report Count (3),           * 3x Accels */
	0x09, 0x33,         /*              Usage (rX),             */
	0x09, 0x34,         /*              Usage (rY),             */
	0x09, 0x35,         /*              Usage (rZ),             */
	0x81, 0x02,         /*          Input (Variable),           */
	0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),         */
	0x95, 0x03,         /*          Report Count (3),           * Skip Accels 2nd frame */
	0x81, 0x02,         /*          Input (Variable),           */
	0x05, 0x01,         /*          Usage Page (Desktop),       */
	0x09, 0x01,         /*          Usage (Pointer),            */
	0x95, 0x03,         /*          Report Count (3),           * 3x Gyros */
	0x81, 0x02,         /*          Input (Variable),           */
	0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),         */
	0x95, 0x03,         /*          Report Count (3),           * Skip Gyros 2nd frame */
	0x81, 0x02,         /*          Input (Variable),           */
	0x75, 0x0C,         /*          Report Size (12),           */
	0x46, 0xFF, 0x0F,   /*          Physical Maximum (4095),    */
	0x26, 0xFF, 0x0F,   /*          Logical Maximum (4095),     */
	0x95, 0x04,         /*          Report Count (4),           * Skip Temp and Magnetometers */
	0x81, 0x02,         /*          Input (Variable),           */
	0x75, 0x08,         /*          Report Size (8),            */
	0x46, 0xFF, 0x00,   /*          Physical Maximum (255),     */
	0x26, 0xFF, 0x00,   /*          Logical Maximum (255),      */
	0x95, 0x06,         /*          Report Count (6),           * Skip Timestamp and Extension Bytes */
	0x81, 0x02,         /*          Input (Variable),           */
	0x75, 0x08,         /*          Report Size (8),            */
	0x95, 0x30,         /*          Report Count (48),          */
	0x09, 0x01,         /*          Usage (Pointer),            */
	0x91, 0x02,         /*          Output (Variable),          */
	0x75, 0x08,         /*          Report Size (8),            */
	0x95, 0x30,         /*          Report Count (48),          */
	0x09, 0x01,         /*          Usage (Pointer),            */
	0xB1, 0x02,         /*          Feature (Variable),         */
	0xC0,               /*      End Collection,                 */
	0xA1, 0x02,         /*      Collection (Logical),           */
	0x85, 0x02,         /*          Report ID (2),              */
	0x75, 0x08,         /*          Report Size (8),            */
	0x95, 0x30,         /*          Report Count (48),          */
	0x09, 0x01,         /*          Usage (Pointer),            */
	0xB1, 0x02,         /*          Feature (Variable),         */
	0xC0,               /*      End Collection,                 */
	0xA1, 0x02,         /*      Collection (Logical),           */
	0x85, 0xEE,         /*          Report ID (238),            */
	0x75, 0x08,         /*          Report Size (8),            */
	0x95, 0x30,         /*          Report Count (48),          */
	0x09, 0x01,         /*          Usage (Pointer),            */
	0xB1, 0x02,         /*          Feature (Variable),         */
	0xC0,               /*      End Collection,                 */
	0xA1, 0x02,         /*      Collection (Logical),           */
	0x85, 0xEF,         /*          Report ID (239),            */
	0x75, 0x08,         /*          Report Size (8),            */
	0x95, 0x30,         /*          Report Count (48),          */
	0x09, 0x01,         /*          Usage (Pointer),            */
	0xB1, 0x02,         /*          Feature (Variable),         */
	0xC0,               /*      End Collection,                 */
	0xC0                /*  End Collection                      */
};

static u8 ps3remote_rdesc[] = {
	0x05, 0x01,          /* GUsagePage Generic Desktop */
	0x09, 0x05,          /* LUsage 0x05 [Game Pad] */
	0xA1, 0x01,          /* MCollection Application (mouse, keyboard) */

	 /* Use collection 1 for joypad buttons */
	 0xA1, 0x02,         /* MCollection Logical (interrelated data) */

	  /*
	   * Ignore the 1st byte, maybe it is used for a controller
	   * number but it's not needed for correct operation
	   */
	  0x75, 0x08,        /* GReportSize 0x08 [8] */
	  0x95, 0x01,        /* GReportCount 0x01 [1] */
	  0x81, 0x01,        /* MInput 0x01 (Const[0] Arr[1] Abs[2]) */

	  /*
	   * Bytes from 2nd to 4th are a bitmap for joypad buttons, for these
	   * buttons multiple keypresses are allowed
	   */
	  0x05, 0x09,        /* GUsagePage Button */
	  0x19, 0x01,        /* LUsageMinimum 0x01 [Button 1 (primary/trigger)] */
	  0x29, 0x18,        /* LUsageMaximum 0x18 [Button 24] */
	  0x14,              /* GLogicalMinimum [0] */
	  0x25, 0x01,        /* GLogicalMaximum 0x01 [1] */
	  0x75, 0x01,        /* GReportSize 0x01 [1] */
	  0x95, 0x18,        /* GReportCount 0x18 [24] */
	  0x81, 0x02,        /* MInput 0x02 (Data[0] Var[1] Abs[2]) */

	  0xC0,              /* MEndCollection */

	 /* Use collection 2 for remote control buttons */
	 0xA1, 0x02,         /* MCollection Logical (interrelated data) */

	  /* 5th byte is used for remote control buttons */
	  0x05, 0x09,        /* GUsagePage Button */
	  0x18,              /* LUsageMinimum [No button pressed] */
	  0x29, 0xFE,        /* LUsageMaximum 0xFE [Button 254] */
	  0x14,              /* GLogicalMinimum [0] */
	  0x26, 0xFE, 0x00,  /* GLogicalMaximum 0x00FE [254] */
	  0x75, 0x08,        /* GReportSize 0x08 [8] */
	  0x95, 0x01,        /* GReportCount 0x01 [1] */
	  0x80,              /* MInput  */

	  /*
	   * Ignore bytes from 6th to 11th, 6th to 10th are always constant at
	   * 0xff and 11th is for press indication
	   */
	  0x75, 0x08,        /* GReportSize 0x08 [8] */
	  0x95, 0x06,        /* GReportCount 0x06 [6] */
	  0x81, 0x01,        /* MInput 0x01 (Const[0] Arr[1] Abs[2]) */

	  /* 12th byte is for battery strength */
	  0x05, 0x06,        /* GUsagePage Generic Device Controls */
	  0x09, 0x20,        /* LUsage 0x20 [Battery Strength] */
	  0x14,              /* GLogicalMinimum [0] */
	  0x25, 0x05,        /* GLogicalMaximum 0x05 [5] */
	  0x75, 0x08,        /* GReportSize 0x08 [8] */
	  0x95, 0x01,        /* GReportCount 0x01 [1] */
	  0x81, 0x02,        /* MInput 0x02 (Data[0] Var[1] Abs[2]) */

	  0xC0,              /* MEndCollection */

	 0xC0                /* MEndCollection [Game Pad] */
};

static const unsigned int ps3remote_keymap_joypad_buttons[] = {
	[0x01] = KEY_SELECT,
	[0x02] = BTN_THUMBL,		/* L3 */
	[0x03] = BTN_THUMBR,		/* R3 */
	[0x04] = BTN_START,
	[0x05] = KEY_UP,
	[0x06] = KEY_RIGHT,
	[0x07] = KEY_DOWN,
	[0x08] = KEY_LEFT,
	[0x09] = BTN_TL2,		/* L2 */
	[0x0a] = BTN_TR2,		/* R2 */
	[0x0b] = BTN_TL,		/* L1 */
	[0x0c] = BTN_TR,		/* R1 */
	[0x0d] = KEY_OPTION,		/* options/triangle */
	[0x0e] = KEY_BACK,		/* back/circle */
	[0x0f] = BTN_0,			/* cross */
	[0x10] = KEY_SCREEN,		/* view/square */
	[0x11] = KEY_HOMEPAGE,		/* PS button */
	[0x14] = KEY_ENTER,
};
static const unsigned int ps3remote_keymap_remote_buttons[] = {
	[0x00] = KEY_1,
	[0x01] = KEY_2,
	[0x02] = KEY_3,
	[0x03] = KEY_4,
	[0x04] = KEY_5,
	[0x05] = KEY_6,
	[0x06] = KEY_7,
	[0x07] = KEY_8,
	[0x08] = KEY_9,
	[0x09] = KEY_0,
	[0x0e] = KEY_ESC,		/* return */
	[0x0f] = KEY_CLEAR,
	[0x16] = KEY_EJECTCD,
	[0x1a] = KEY_MENU,		/* top menu */
	[0x28] = KEY_TIME,
	[0x30] = KEY_PREVIOUS,
	[0x31] = KEY_NEXT,
	[0x32] = KEY_PLAY,
	[0x33] = KEY_REWIND,		/* scan back */
	[0x34] = KEY_FORWARD,		/* scan forward */
	[0x38] = KEY_STOP,
	[0x39] = KEY_PAUSE,
	[0x40] = KEY_CONTEXT_MENU,	/* pop up/menu */
	[0x60] = KEY_FRAMEBACK,		/* slow/step back */
	[0x61] = KEY_FRAMEFORWARD,	/* slow/step forward */
	[0x63] = KEY_SUBTITLE,
	[0x64] = KEY_AUDIO,
	[0x65] = KEY_ANGLE,
	[0x70] = KEY_INFO,		/* display */
	[0x80] = KEY_BLUE,
	[0x81] = KEY_RED,
	[0x82] = KEY_GREEN,
	[0x83] = KEY_YELLOW,
};

static const unsigned int buzz_keymap[] = {
	/*
	 * The controller has 4 remote buzzers, each with one LED and 5
	 * buttons.
	 *
	 * We use the mapping chosen by the controller, which is:
	 *
	 * Key          Offset
	 * -------------------
	 * Buzz              1
	 * Blue              5
	 * Orange            4
	 * Green             3
	 * Yellow            2
	 *
	 * So, for example, the orange button on the third buzzer is mapped to
	 * BTN_TRIGGER_HAPPY14
	 */
	 [1] = BTN_TRIGGER_HAPPY1,
	 [2] = BTN_TRIGGER_HAPPY2,
	 [3] = BTN_TRIGGER_HAPPY3,
	 [4] = BTN_TRIGGER_HAPPY4,
	 [5] = BTN_TRIGGER_HAPPY5,
	 [6] = BTN_TRIGGER_HAPPY6,
	 [7] = BTN_TRIGGER_HAPPY7,
	 [8] = BTN_TRIGGER_HAPPY8,
	 [9] = BTN_TRIGGER_HAPPY9,
	[10] = BTN_TRIGGER_HAPPY10,
	[11] = BTN_TRIGGER_HAPPY11,
	[12] = BTN_TRIGGER_HAPPY12,
	[13] = BTN_TRIGGER_HAPPY13,
	[14] = BTN_TRIGGER_HAPPY14,
	[15] = BTN_TRIGGER_HAPPY15,
	[16] = BTN_TRIGGER_HAPPY16,
	[17] = BTN_TRIGGER_HAPPY17,
	[18] = BTN_TRIGGER_HAPPY18,
	[19] = BTN_TRIGGER_HAPPY19,
	[20] = BTN_TRIGGER_HAPPY20,
};

/* The Navigation controller is a partial DS3 and uses the same HID report
 * and hence the same keymap indices, however not not all axes/buttons
 * are physically present. We use the same axis and button mapping as
 * the DS3, which uses the Linux gamepad spec.
 */
static const unsigned int navigation_absmap[] = {
	[0x30] = ABS_X,
	[0x31] = ABS_Y,
	[0x33] = ABS_Z, /* L2 */
};

/* Buttons not physically available on the device, but still available
 * in the reports are explicitly set to 0 for documentation purposes.
 */
static const unsigned int navigation_keymap[] = {
	[0x01] = 0, /* Select */
	[0x02] = BTN_THUMBL, /* L3 */
	[0x03] = 0, /* R3 */
	[0x04] = 0, /* Start */
	[0x05] = BTN_DPAD_UP, /* Up */
	[0x06] = BTN_DPAD_RIGHT, /* Right */
	[0x07] = BTN_DPAD_DOWN, /* Down */
	[0x08] = BTN_DPAD_LEFT, /* Left */
	[0x09] = BTN_TL2, /* L2 */
	[0x0a] = 0, /* R2 */
	[0x0b] = BTN_TL, /* L1 */
	[0x0c] = 0, /* R1 */
	[0x0d] = BTN_NORTH, /* Triangle */
	[0x0e] = BTN_EAST, /* Circle */
	[0x0f] = BTN_SOUTH, /* Cross */
	[0x10] = BTN_WEST, /* Square */
	[0x11] = BTN_MODE, /* PS */
};

static const unsigned int sixaxis_absmap[] = {
	[0x30] = ABS_X,
	[0x31] = ABS_Y,
	[0x32] = ABS_RX, /* right stick X */
	[0x35] = ABS_RY, /* right stick Y */
};

static const unsigned int sixaxis_keymap[] = {
	[0x01] = BTN_SELECT, /* Select */
	[0x02] = BTN_THUMBL, /* L3 */
	[0x03] = BTN_THUMBR, /* R3 */
	[0x04] = BTN_START, /* Start */
	[0x05] = BTN_DPAD_UP, /* Up */
	[0x06] = BTN_DPAD_RIGHT, /* Right */
	[0x07] = BTN_DPAD_DOWN, /* Down */
	[0x08] = BTN_DPAD_LEFT, /* Left */
	[0x09] = BTN_TL2, /* L2 */
	[0x0a] = BTN_TR2, /* R2 */
	[0x0b] = BTN_TL, /* L1 */
	[0x0c] = BTN_TR, /* R1 */
	[0x0d] = BTN_NORTH, /* Triangle */
	[0x0e] = BTN_EAST, /* Circle */
	[0x0f] = BTN_SOUTH, /* Cross */
	[0x10] = BTN_WEST, /* Square */
	[0x11] = BTN_MODE, /* PS */
};

static const unsigned int ds4_absmap[] = {
	[0x30] = ABS_X,
	[0x31] = ABS_Y,
	[0x32] = ABS_RX, /* right stick X */
	[0x33] = ABS_Z, /* L2 */
	[0x34] = ABS_RZ, /* R2 */
	[0x35] = ABS_RY, /* right stick Y */
};

static const unsigned int ds4_keymap[] = {
	[0x1] = BTN_WEST, /* Square */
	[0x2] = BTN_SOUTH, /* Cross */
	[0x3] = BTN_EAST, /* Circle */
	[0x4] = BTN_NORTH, /* Triangle */
	[0x5] = BTN_TL, /* L1 */
	[0x6] = BTN_TR, /* R1 */
	[0x7] = BTN_TL2, /* L2 */
	[0x8] = BTN_TR2, /* R2 */
	[0x9] = BTN_SELECT, /* Share */
	[0xa] = BTN_START, /* Options */
	[0xb] = BTN_THUMBL, /* L3 */
	[0xc] = BTN_THUMBR, /* R3 */
	[0xd] = BTN_MODE, /* PS */
};

static const struct {int x; int y; } ds4_hat_mapping[] = {
	{0, -1}, {1, -1}, {1, 0}, {1, 1}, {0, 1}, {-1, 1}, {-1, 0}, {-1, -1},
	{0, 0}
};

static enum power_supply_property sony_battery_props[] = {
	POWER_SUPPLY_PROP_PRESENT,
	POWER_SUPPLY_PROP_CAPACITY,
	POWER_SUPPLY_PROP_SCOPE,
	POWER_SUPPLY_PROP_STATUS,
};

struct sixaxis_led {
	u8 time_enabled; /* the total time the led is active (0xff means forever) */
	u8 duty_length;  /* how long a cycle is in deciseconds (0 means "really fast") */
	u8 enabled;
	u8 duty_off; /* % of duty_length the led is off (0xff means 100%) */
	u8 duty_on;  /* % of duty_length the led is on (0xff mean 100%) */
} __packed;

struct sixaxis_rumble {
	u8 padding;
	u8 right_duration; /* Right motor duration (0xff means forever) */
	u8 right_motor_on; /* Right (small) motor on/off, only supports values of 0 or 1 (off/on) */
	u8 left_duration;    /* Left motor duration (0xff means forever) */
	u8 left_motor_force; /* left (large) motor, supports force values from 0 to 255 */
} __packed;

struct sixaxis_output_report {
	u8 report_id;
	struct sixaxis_rumble rumble;
	u8 padding[4];
	u8 leds_bitmap; /* bitmap of enabled LEDs: LED_1 = 0x02, LED_2 = 0x04, ... */
	struct sixaxis_led led[4];    /* LEDx at (4 - x) */
	struct sixaxis_led _reserved; /* LED5, not actually soldered */
} __packed;

union sixaxis_output_report_01 {
	struct sixaxis_output_report data;
	u8 buf[36];
};

struct motion_output_report_02 {
	u8 type, zero;
	u8 r, g, b;
	u8 zero2;
	u8 rumble;
};

#define DS4_FEATURE_REPORT_0x02_SIZE 37
#define DS4_FEATURE_REPORT_0x05_SIZE 41
#define DS4_FEATURE_REPORT_0x81_SIZE 7
#define DS4_FEATURE_REPORT_0xA3_SIZE 49
#define DS4_INPUT_REPORT_0x11_SIZE 78
#define DS4_OUTPUT_REPORT_0x05_SIZE 32
#define DS4_OUTPUT_REPORT_0x11_SIZE 78
#define SIXAXIS_REPORT_0xF2_SIZE 17
#define SIXAXIS_REPORT_0xF5_SIZE 8
#define MOTION_REPORT_0x02_SIZE 49

/* Offsets relative to USB input report (0x1). Bluetooth (0x11) requires an
 * additional +2.
 */
#define DS4_INPUT_REPORT_AXIS_OFFSET      1
#define DS4_INPUT_REPORT_BUTTON_OFFSET    5
#define DS4_INPUT_REPORT_TIMESTAMP_OFFSET 10
#define DS4_INPUT_REPORT_GYRO_X_OFFSET   13
#define DS4_INPUT_REPORT_BATTERY_OFFSET  30
#define DS4_INPUT_REPORT_TOUCHPAD_OFFSET 33

#define SENSOR_SUFFIX " Motion Sensors"
#define DS4_TOUCHPAD_SUFFIX " Touchpad"

/* Default to 4ms poll interval, which is same as USB (not adjustable). */
#define DS4_BT_DEFAULT_POLL_INTERVAL_MS 4
#define DS4_BT_MAX_POLL_INTERVAL_MS 62
#define DS4_GYRO_RES_PER_DEG_S 1024
#define DS4_ACC_RES_PER_G      8192

#define SIXAXIS_INPUT_REPORT_ACC_X_OFFSET 41
#define SIXAXIS_ACC_RES_PER_G 113

static DEFINE_SPINLOCK(sony_dev_list_lock);
static LIST_HEAD(sony_device_list);
static DEFINE_IDA(sony_device_id_allocator);

/* Used for calibration of DS4 accelerometer and gyro. */
struct ds4_calibration_data {
	int abs_code;
	short bias;
	/* Calibration requires scaling against a sensitivity value, which is a
	 * float. Store sensitivity as a fraction to limit floating point
	 * calculations until final calibration.
	 */
	int sens_numer;
	int sens_denom;
};

enum ds4_dongle_state {
	DONGLE_DISCONNECTED,
	DONGLE_CALIBRATING,
	DONGLE_CONNECTED,
	DONGLE_DISABLED
};

enum sony_worker {
	SONY_WORKER_STATE,
	SONY_WORKER_HOTPLUG
};

struct sony_sc {
	spinlock_t lock;
	struct list_head list_node;
	struct hid_device *hdev;
	struct input_dev *touchpad;
	struct input_dev *sensor_dev;
	struct led_classdev *leds[MAX_LEDS];
	unsigned long quirks;
	struct work_struct hotplug_worker;
	struct work_struct state_worker;
	void (*send_output_report)(struct sony_sc *);
	struct power_supply *battery;
	struct power_supply_desc battery_desc;
	int device_id;
	unsigned fw_version;
	unsigned hw_version;
	u8 *output_report_dmabuf;

#ifdef CONFIG_SONY_FF
	u8 left;
	u8 right;
#endif

	u8 mac_address[6];
	u8 hotplug_worker_initialized;
	u8 state_worker_initialized;
	u8 defer_initialization;
	u8 cable_state;
	u8 battery_charging;
	u8 battery_capacity;
	u8 led_state[MAX_LEDS];
	u8 led_delay_on[MAX_LEDS];
	u8 led_delay_off[MAX_LEDS];
	u8 led_count;

	bool timestamp_initialized;
	u16 prev_timestamp;
	unsigned int timestamp_us;

	u8 ds4_bt_poll_interval;
	enum ds4_dongle_state ds4_dongle_state;
	/* DS4 calibration data */
	struct ds4_calibration_data ds4_calib_data[6];
};

static void sony_set_leds(struct sony_sc *sc);

static inline void sony_schedule_work(struct sony_sc *sc,
				      enum sony_worker which)
{
	switch (which) {
	case SONY_WORKER_STATE:
		if (!sc->defer_initialization)
			schedule_work(&sc->state_worker);
		break;
	case SONY_WORKER_HOTPLUG:
		if (sc->hotplug_worker_initialized)
			schedule_work(&sc->hotplug_worker);
		break;
	}
}

static ssize_t ds4_show_poll_interval(struct device *dev,
				struct device_attribute
				*attr, char *buf)
{
	struct hid_device *hdev = to_hid_device(dev);
	struct sony_sc *sc = hid_get_drvdata(hdev);

	return snprintf(buf, PAGE_SIZE, "%i\n", sc->ds4_bt_poll_interval);
}

static ssize_t ds4_store_poll_interval(struct device *dev,
				struct device_attribute *attr,
				const char *buf, size_t count)
{
	struct hid_device *hdev = to_hid_device(dev);
	struct sony_sc *sc = hid_get_drvdata(hdev);
	unsigned long flags;
	u8 interval;

	if (kstrtou8(buf, 0, &interval))
		return -EINVAL;

	if (interval > DS4_BT_MAX_POLL_INTERVAL_MS)
		return -EINVAL;

	spin_lock_irqsave(&sc->lock, flags);
	sc->ds4_bt_poll_interval = interval;
	spin_unlock_irqrestore(&sc->lock, flags);

	sony_schedule_work(sc, SONY_WORKER_STATE);

	return count;
}

static DEVICE_ATTR(bt_poll_interval, 0644, ds4_show_poll_interval,
		ds4_store_poll_interval);

static ssize_t sony_show_firmware_version(struct device *dev,
				struct device_attribute
				*attr, char *buf)
{
	struct hid_device *hdev = to_hid_device(dev);
	struct sony_sc *sc = hid_get_drvdata(hdev);

	return snprintf(buf, PAGE_SIZE, "0x%04x\n", sc->fw_version);
}

static DEVICE_ATTR(firmware_version, 0444, sony_show_firmware_version, NULL);

static ssize_t sony_show_hardware_version(struct device *dev,
				struct device_attribute
				*attr, char *buf)
{
	struct hid_device *hdev = to_hid_device(dev);
	struct sony_sc *sc = hid_get_drvdata(hdev);

	return snprintf(buf, PAGE_SIZE, "0x%04x\n", sc->hw_version);
}

static DEVICE_ATTR(hardware_version, 0444, sony_show_hardware_version, NULL);

static u8 *motion_fixup(struct hid_device *hdev, u8 *rdesc,
			     unsigned int *rsize)
{
	*rsize = sizeof(motion_rdesc);
	return motion_rdesc;
}

static u8 *ps3remote_fixup(struct hid_device *hdev, u8 *rdesc,
			     unsigned int *rsize)
{
	*rsize = sizeof(ps3remote_rdesc);
	return ps3remote_rdesc;
}

static int ps3remote_mapping(struct hid_device *hdev, struct hid_input *hi,
			     struct hid_field *field, struct hid_usage *usage,
			     unsigned long **bit, int *max)
{
	unsigned int key = usage->hid & HID_USAGE;

	if ((usage->hid & HID_USAGE_PAGE) != HID_UP_BUTTON)
		return -1;

	switch (usage->collection_index) {
	case 1:
		if (key >= ARRAY_SIZE(ps3remote_keymap_joypad_buttons))
			return -1;

		key = ps3remote_keymap_joypad_buttons[key];
		if (!key)
			return -1;
		break;
	case 2:
		if (key >= ARRAY_SIZE(ps3remote_keymap_remote_buttons))
			return -1;

		key = ps3remote_keymap_remote_buttons[key];
		if (!key)
			return -1;
		break;
	default:
		return -1;
	}

	hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
	return 1;
}

static int navigation_mapping(struct hid_device *hdev, struct hid_input *hi,
			  struct hid_field *field, struct hid_usage *usage,
			  unsigned long **bit, int *max)
{
	if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
		unsigned int key = usage->hid & HID_USAGE;

		if (key >= ARRAY_SIZE(sixaxis_keymap))
			return -1;

		key = navigation_keymap[key];
		if (!key)
			return -1;

		hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
		return 1;
	} else if (usage->hid == HID_GD_POINTER) {
		/* See comment in sixaxis_mapping, basically the L2 (and R2)
		 * triggers are reported through GD Pointer.
		 * In addition we ignore any analog button 'axes' and only
		 * support digital buttons.
		 */
		switch (usage->usage_index) {
		case 8: /* L2 */
			usage->hid = HID_GD_Z;
			break;
		default:
			return -1;
		}

		hid_map_usage_clear(hi, usage, bit, max, EV_ABS, usage->hid & 0xf);
		return 1;
	} else if ((usage->hid & HID_USAGE_PAGE) == HID_UP_GENDESK) {
		unsigned int abs = usage->hid & HID_USAGE;

		if (abs >= ARRAY_SIZE(navigation_absmap))
			return -1;

		abs = navigation_absmap[abs];

		hid_map_usage_clear(hi, usage, bit, max, EV_ABS, abs);
		return 1;
	}

	return -1;
}


static int sixaxis_mapping(struct hid_device *hdev, struct hid_input *hi,
			  struct hid_field *field, struct hid_usage *usage,
			  unsigned long **bit, int *max)
{
	if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
		unsigned int key = usage->hid & HID_USAGE;

		if (key >= ARRAY_SIZE(sixaxis_keymap))
			return -1;

		key = sixaxis_keymap[key];
		hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
		return 1;
	} else if (usage->hid == HID_GD_POINTER) {
		/* The DS3 provides analog values for most buttons and even
		 * for HAT axes through GD Pointer. L2 and R2 are reported
		 * among these as well instead of as GD Z / RZ. Remap L2
		 * and R2 and ignore other analog 'button axes' as there is
		 * no good way for reporting them.
		 */
		switch (usage->usage_index) {
		case 8: /* L2 */
			usage->hid = HID_GD_Z;
			break;
		case 9: /* R2 */
			usage->hid = HID_GD_RZ;
			break;
		default:
			return -1;
		}

		hid_map_usage_clear(hi, usage, bit, max, EV_ABS, usage->hid & 0xf);
		return 1;
	} else if ((usage->hid & HID_USAGE_PAGE) == HID_UP_GENDESK) {
		unsigned int abs = usage->hid & HID_USAGE;

		if (abs >= ARRAY_SIZE(sixaxis_absmap))
			return -1;

		abs = sixaxis_absmap[abs];

		hid_map_usage_clear(hi, usage, bit, max, EV_ABS, abs);
		return 1;
	}

	return -1;
}

static int ds4_mapping(struct hid_device *hdev, struct hid_input *hi,
		       struct hid_field *field, struct hid_usage *usage,
		       unsigned long **bit, int *max)
{
	if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
		unsigned int key = usage->hid & HID_USAGE;

		if (key >= ARRAY_SIZE(ds4_keymap))
			return -1;

		key = ds4_keymap[key];
		hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
		return 1;
	} else if ((usage->hid & HID_USAGE_PAGE) == HID_UP_GENDESK) {
		unsigned int abs = usage->hid & HID_USAGE;

		/* Let the HID parser deal with the HAT. */
		if (usage->hid == HID_GD_HATSWITCH)
			return 0;

		if (abs >= ARRAY_SIZE(ds4_absmap))
			return -1;

		abs = ds4_absmap[abs];
		hid_map_usage_clear(hi, usage, bit, max, EV_ABS, abs);
		return 1;
	}

	return 0;
}

static u8 *sony_report_fixup(struct hid_device *hdev, u8 *rdesc,
		unsigned int *rsize)
{
	struct sony_sc *sc = hid_get_drvdata(hdev);

	if (sc->quirks & (SINO_LITE_CONTROLLER | FUTUREMAX_DANCE_MAT))
		return rdesc;

	/*
	 * Some Sony RF receivers wrongly declare the mouse pointer as a
	 * a constant non-data variable.
	 */
	if ((sc->quirks & VAIO_RDESC_CONSTANT) && *rsize >= 56 &&
	    /* usage page: generic desktop controls */
	    /* rdesc[0] == 0x05 && rdesc[1] == 0x01 && */
	    /* usage: mouse */
	    rdesc[2] == 0x09 && rdesc[3] == 0x02 &&
	    /* input (usage page for x,y axes): constant, variable, relative */
	    rdesc[54] == 0x81 && rdesc[55] == 0x07) {
		hid_info(hdev, "Fixing up Sony RF Receiver report descriptor\n");
		/* input: data, variable, relative */
		rdesc[55] = 0x06;
	}

	if (sc->quirks & MOTION_CONTROLLER)
		return motion_fixup(hdev, rdesc, rsize);

	if (sc->quirks & PS3REMOTE)
		return ps3remote_fixup(hdev, rdesc, rsize);

	return rdesc;
}

static void sixaxis_parse_report(struct sony_sc *sc, u8 *rd, int size)
{
	static const u8 sixaxis_battery_capacity[] = { 0, 1, 25, 50, 75, 100 };
	unsigned long flags;
	int offset;
	u8 cable_state, battery_capacity, battery_charging;

	/*
	 * The sixaxis is charging if the battery value is 0xee
	 * and it is fully charged if the value is 0xef.
	 * It does not report the actual level while charging so it
	 * is set to 100% while charging is in progress.
	 */
	offset = (sc->quirks & MOTION_CONTROLLER) ? 12 : 30;

	if (rd[offset] >= 0xee) {
		battery_capacity = 100;
		battery_charging = !(rd[offset] & 0x01);
		cable_state = 1;
	} else {
		u8 index = rd[offset] <= 5 ? rd[offset] : 5;
		battery_capacity = sixaxis_battery_capacity[index];
		battery_charging = 0;
		cable_state = 0;
	}

	spin_lock_irqsave(&sc->lock, flags);
	sc->cable_state = cable_state;
	sc->battery_capacity = battery_capacity;
	sc->battery_charging = battery_charging;
	spin_unlock_irqrestore(&sc->lock, flags);

	if (sc->quirks & SIXAXIS_CONTROLLER) {
		int val;

		offset = SIXAXIS_INPUT_REPORT_ACC_X_OFFSET;
		val = ((rd[offset+1] << 8) | rd[offset]) - 511;
		input_report_abs(sc->sensor_dev, ABS_X, val);

		/* Y and Z are swapped and inversed */
		val = 511 - ((rd[offset+5] << 8) | rd[offset+4]);
		input_report_abs(sc->sensor_dev, ABS_Y, val);

		val = 511 - ((rd[offset+3] << 8) | rd[offset+2]);
		input_report_abs(sc->sensor_dev, ABS_Z, val);

		input_sync(sc->sensor_dev);
	}
}

static void dualshock4_parse_report(struct sony_sc *sc, u8 *rd, int size)
{
	struct hid_input *hidinput = list_entry(sc->hdev->inputs.next,
						struct hid_input, list);
	struct input_dev *input_dev = hidinput->input;
	unsigned long flags;
	int n, m, offset, num_touch_data, max_touch_data;
	u8 cable_state, battery_capacity, battery_charging;
	u16 timestamp;

	/* When using Bluetooth the header is 2 bytes longer, so skip these. */
	int data_offset = (sc->quirks & DUALSHOCK4_CONTROLLER_BT) ? 2 : 0;

	/* Second bit of third button byte is for the touchpad button. */
	offset = data_offset + DS4_INPUT_REPORT_BUTTON_OFFSET;
	input_report_key(sc->touchpad, BTN_LEFT, rd[offset+2] & 0x2);

	/*
	 * The default behavior of the Dualshock 4 is to send reports using
	 * report type 1 when running over Bluetooth. However, when feature
	 * report 2 is requested during the controller initialization it starts
	 * sending input reports in report 17. Since report 17 is undefined
	 * in the default HID descriptor, the HID layer won't generate events.
	 * While it is possible (and this was done before) to fixup the HID
	 * descriptor to add this mapping, it was better to do this manually.
	 * The reason is there were various pieces software both open and closed
	 * source, relying on the descriptors to be the same across various
	 * operating systems. If the descriptors wouldn't match some
	 * applications e.g. games on Wine would not be able to function due
	 * to different descriptors, which such applications are not parsing.
	 */
	if (rd[0] == 17) {
		int value;

		offset = data_offset + DS4_INPUT_REPORT_AXIS_OFFSET;
		input_report_abs(input_dev, ABS_X, rd[offset]);
		input_report_abs(input_dev, ABS_Y, rd[offset+1]);
		input_report_abs(input_dev, ABS_RX, rd[offset+2]);
		input_report_abs(input_dev, ABS_RY, rd[offset+3]);

		value = rd[offset+4] & 0xf;
		if (value > 7)
			value = 8; /* Center 0, 0 */
		input_report_abs(input_dev, ABS_HAT0X, ds4_hat_mapping[value].x);
		input_report_abs(input_dev, ABS_HAT0Y, ds4_hat_mapping[value].y);

		input_report_key(input_dev, BTN_WEST, rd[offset+4] & 0x10);
		input_report_key(input_dev, BTN_SOUTH, rd[offset+4] & 0x20);
		input_report_key(input_dev, BTN_EAST, rd[offset+4] & 0x40);
		input_report_key(input_dev, BTN_NORTH, rd[offset+4] & 0x80);

		input_report_key(input_dev, BTN_TL, rd[offset+5] & 0x1);
		input_report_key(input_dev, BTN_TR, rd[offset+5] & 0x2);
		input_report_key(input_dev, BTN_TL2, rd[offset+5] & 0x4);
		input_report_key(input_dev, BTN_TR2, rd[offset+5] & 0x8);
		input_report_key(input_dev, BTN_SELECT, rd[offset+5] & 0x10);
		input_report_key(input_dev, BTN_START, rd[offset+5] & 0x20);
		input_report_key(input_dev, BTN_THUMBL, rd[offset+5] & 0x40);
		input_report_key(input_dev, BTN_THUMBR, rd[offset+5] & 0x80);

		input_report_key(input_dev, BTN_MODE, rd[offset+6] & 0x1);

		input_report_abs(input_dev, ABS_Z, rd[offset+7]);
		input_report_abs(input_dev, ABS_RZ, rd[offset+8]);

		input_sync(input_dev);
	}

	/* Convert timestamp (in 5.33us unit) to timestamp_us */
	offset = data_offset + DS4_INPUT_REPORT_TIMESTAMP_OFFSET;
	timestamp = get_unaligned_le16(&rd[offset]);
	if (!sc->timestamp_initialized) {
		sc->timestamp_us = ((unsigned int)timestamp * 16) / 3;
		sc->timestamp_initialized = true;
	} else {
		u16 delta;

		if (sc->prev_timestamp > timestamp)
			delta = (U16_MAX - sc->prev_timestamp + timestamp + 1);
		else
			delta = timestamp - sc->prev_timestamp;
		sc->timestamp_us += (delta * 16) / 3;
	}
	sc->prev_timestamp = timestamp;
	input_event(sc->sensor_dev, EV_MSC, MSC_TIMESTAMP, sc->timestamp_us);

	offset = data_offset + DS4_INPUT_REPORT_GYRO_X_OFFSET;
	for (n = 0; n < 6; n++) {
		/* Store data in int for more precision during mult_frac. */
		int raw_data = (short)((rd[offset+1] << 8) | rd[offset]);
		struct ds4_calibration_data *calib = &sc->ds4_calib_data[n];

		/* High precision is needed during calibration, but the
		 * calibrated values are within 32-bit.
		 * Note: we swap numerator 'x' and 'numer' in mult_frac for
		 *       precision reasons so we don't need 64-bit.
		 */
		int calib_data = mult_frac(calib->sens_numer,
					   raw_data - calib->bias,
					   calib->sens_denom);

		input_report_abs(sc->sensor_dev, calib->abs_code, calib_data);
		offset += 2;
	}
	input_sync(sc->sensor_dev);

	/*
	 * The lower 4 bits of byte 30 (or 32 for BT) contain the battery level
	 * and the 5th bit contains the USB cable state.
	 */
	offset = data_offset + DS4_INPUT_REPORT_BATTERY_OFFSET;
	cable_state = (rd[offset] >> 4) & 0x01;
	battery_capacity = rd[offset] & 0x0F;

	/*
	 * When a USB power source is connected the battery level ranges from
	 * 0 to 10, and when running on battery power it ranges from 0 to 9.
	 * A battery level above 10 when plugged in means charge completed.
	 */
	if (!cable_state || battery_capacity > 10)
		battery_charging = 0;
	else
		battery_charging = 1;

	if (!cable_state)
		battery_capacity++;
	if (battery_capacity > 10)
		battery_capacity = 10;

	battery_capacity *= 10;

	spin_lock_irqsave(&sc->lock, flags);
	sc->cable_state = cable_state;
	sc->battery_capacity = battery_capacity;
	sc->battery_charging = battery_charging;
	spin_unlock_irqrestore(&sc->lock, flags);

	/*
	 * The Dualshock 4 multi-touch trackpad data starts at offset 33 on USB
	 * and 35 on Bluetooth.
	 * The first byte indicates the number of touch data in the report.
	 * Trackpad data starts 2 bytes later (e.g. 35 for USB).
	 */
	offset = data_offset + DS4_INPUT_REPORT_TOUCHPAD_OFFSET;
	max_touch_data = (sc->quirks & DUALSHOCK4_CONTROLLER_BT) ? 4 : 3;
	if (rd[offset] > 0 && rd[offset] <= max_touch_data)
		num_touch_data = rd[offset];
	else
		num_touch_data = 1;
	offset += 1;

	for (m = 0; m < num_touch_data; m++) {
		/* Skip past timestamp */
		offset += 1;

		/*
		 * The first 7 bits of the first byte is a counter and bit 8 is
		 * a touch indicator that is 0 when pressed and 1 when not
		 * pressed.
		 * The next 3 bytes are two 12 bit touch coordinates, X and Y.
		 * The data for the second touch is in the same format and
		 * immediately follows the data for the first.
		 */
		for (n = 0; n < 2; n++) {
			u16 x, y;
			bool active;

			x = rd[offset+1] | ((rd[offset+2] & 0xF) << 8);
			y = ((rd[offset+2] & 0xF0) >> 4) | (rd[offset+3] << 4);

			active = !(rd[offset] >> 7);
			input_mt_slot(sc->touchpad, n);
			input_mt_report_slot_state(sc->touchpad, MT_TOOL_FINGER, active);

			if (active) {
				input_report_abs(sc->touchpad, ABS_MT_POSITION_X, x);
				input_report_abs(sc->touchpad, ABS_MT_POSITION_Y, y);
			}

			offset += 4;
		}
		input_mt_sync_frame(sc->touchpad);
		input_sync(sc->touchpad);
	}
}

static void nsg_mrxu_parse_report(struct sony_sc *sc, u8 *rd, int size)
{
	int n, offset, relx, rely;
	u8 active;

	/*
	 * The NSG-MRxU multi-touch trackpad data starts at offset 1 and
	 *   the touch-related data starts at offset 2.
	 * For the first byte, bit 0 is set when touchpad button is pressed.
	 * Bit 2 is set when a touch is active and the drag (Fn) key is pressed.
	 * This drag key is mapped to BTN_LEFT.  It is operational only when a 
	 *   touch point is active.
	 * Bit 4 is set when only the first touch point is active.
	 * Bit 6 is set when only the second touch point is active.
	 * Bits 5 and 7 are set when both touch points are active.
	 * The next 3 bytes are two 12 bit X/Y coordinates for the first touch.
	 * The following byte, offset 5, has the touch width and length.
	 *   Bits 0-4=X (width), bits 5-7=Y (length).
	 * A signed relative X coordinate is at offset 6.
	 * The bytes at offset 7-9 are the second touch X/Y coordinates.
	 * Offset 10 has the second touch width and length.
	 * Offset 11 has the relative Y coordinate.
	 */
	offset = 1;

	input_report_key(sc->touchpad, BTN_LEFT, rd[offset] & 0x0F);
	active = (rd[offset] >> 4);
	relx = (s8) rd[offset+5];
	rely = ((s8) rd[offset+10]) * -1;

	offset++;

	for (n = 0; n < 2; n++) {
		u16 x, y;
		u8 contactx, contacty;

		x = rd[offset] | ((rd[offset+1] & 0x0F) << 8);
		y = ((rd[offset+1] & 0xF0) >> 4) | (rd[offset+2] << 4);

		input_mt_slot(sc->touchpad, n);
		input_mt_report_slot_state(sc->touchpad, MT_TOOL_FINGER, active & 0x03);

		if (active & 0x03) {
			contactx = rd[offset+3] & 0x0F;
			contacty = rd[offset+3] >> 4;
			input_report_abs(sc->touchpad, ABS_MT_TOUCH_MAJOR,
				max(contactx, contacty));
			input_report_abs(sc->touchpad, ABS_MT_TOUCH_MINOR,
				min(contactx, contacty));
			input_report_abs(sc->touchpad, ABS_MT_ORIENTATION,
				(bool) (contactx > contacty));
			input_report_abs(sc->touchpad, ABS_MT_POSITION_X, x);
			input_report_abs(sc->touchpad, ABS_MT_POSITION_Y,
				NSG_MRXU_MAX_Y - y);
			/*
			 * The relative coordinates belong to the first touch
			 * point, when present, or to the second touch point
			 * when the first is not active.
			 */
			if ((n == 0) || ((n == 1) && (active & 0x01))) {
				input_report_rel(sc->touchpad, REL_X, relx);
				input_report_rel(sc->touchpad, REL_Y, rely);
			}
		}

		offset += 5;
		active >>= 2;
	}

	input_mt_sync_frame(sc->touchpad);

	input_sync(sc->touchpad);
}

static int sony_raw_event(struct hid_device *hdev, struct hid_report *report,
		u8 *rd, int size)
{
	struct sony_sc *sc = hid_get_drvdata(hdev);

	/*
	 * Sixaxis HID report has acclerometers/gyro with MSByte first, this
	 * has to be BYTE_SWAPPED before passing up to joystick interface
	 */
	if ((sc->quirks & SIXAXIS_CONTROLLER) && rd[0] == 0x01 && size == 49) {
		/*
		 * When connected via Bluetooth the Sixaxis occasionally sends
		 * a report with the second byte 0xff and the rest zeroed.
		 *
		 * This report does not reflect the actual state of the
		 * controller must be ignored to avoid generating false input
		 * events.
		 */
		if (rd[1] == 0xff)
			return -EINVAL;

		swap(rd[41], rd[42]);
		swap(rd[43], rd[44]);
		swap(rd[45], rd[46]);
		swap(rd[47], rd[48]);

		sixaxis_parse_report(sc, rd, size);
	} else if ((sc->quirks & MOTION_CONTROLLER_BT) && rd[0] == 0x01 && size == 49) {
		sixaxis_parse_report(sc, rd, size);
	} else if ((sc->quirks & NAVIGATION_CONTROLLER) && rd[0] == 0x01 &&
			size == 49) {
		sixaxis_parse_report(sc, rd, size);
	} else if ((sc->quirks & DUALSHOCK4_CONTROLLER_USB) && rd[0] == 0x01 &&
			size == 64) {
		dualshock4_parse_report(sc, rd, size);
	} else if (((sc->quirks & DUALSHOCK4_CONTROLLER_BT) && rd[0] == 0x11 &&
			size == 78)) {
		/* CRC check */
		u8 bthdr = 0xA1;
		u32 crc;
		u32 report_crc;

		crc = crc32_le(0xFFFFFFFF, &bthdr, 1);
		crc = ~crc32_le(crc, rd, DS4_INPUT_REPORT_0x11_SIZE-4);
		report_crc = get_unaligned_le32(&rd[DS4_INPUT_REPORT_0x11_SIZE-4]);
		if (crc != report_crc) {
			hid_dbg(sc->hdev, "DualShock 4 input report's CRC check failed, received crc 0x%0x != 0x%0x\n",
				report_crc, crc);
			return -EILSEQ;
		}

		dualshock4_parse_report(sc, rd, size);
	} else if ((sc->quirks & DUALSHOCK4_DONGLE) && rd[0] == 0x01 &&
			size == 64) {
		unsigned long flags;
		enum ds4_dongle_state dongle_state;

		/*
		 * In the case of a DS4 USB dongle, bit[2] of byte 31 indicates
		 * if a DS4 is actually connected (indicated by '0').
		 * For non-dongle, this bit is always 0 (connected).
		 */
		bool connected = (rd[31] & 0x04) ? false : true;

		spin_lock_irqsave(&sc->lock, flags);
		dongle_state = sc->ds4_dongle_state;
		spin_unlock_irqrestore(&sc->lock, flags);

		/*
		 * The dongle always sends input reports even when no
		 * DS4 is attached. When a DS4 is connected, we need to
		 * obtain calibration data before we can use it.
		 * The code below tracks dongle state and kicks of
		 * calibration when needed and only allows us to process
		 * input if a DS4 is actually connected.
		 */
		if (dongle_state == DONGLE_DISCONNECTED && connected) {
			hid_info(sc->hdev, "DualShock 4 USB dongle: controller connected\n");
			sony_set_leds(sc);

			spin_lock_irqsave(&sc->lock, flags);
			sc->ds4_dongle_state = DONGLE_CALIBRATING;
			spin_unlock_irqrestore(&sc->lock, flags);

			sony_schedule_work(sc, SONY_WORKER_HOTPLUG);

			/* Don't process the report since we don't have
			 * calibration data, but let hidraw have it anyway.
			 */
			return 0;
		} else if ((dongle_state == DONGLE_CONNECTED ||
			    dongle_state == DONGLE_DISABLED) && !connected) {
			hid_info(sc->hdev, "DualShock 4 USB dongle: controller disconnected\n");

			spin_lock_irqsave(&sc->lock, flags);
			sc->ds4_dongle_state = DONGLE_DISCONNECTED;
			spin_unlock_irqrestore(&sc->lock, flags);

			/* Return 0, so hidraw can get the report. */
			return 0;
		} else if (dongle_state == DONGLE_CALIBRATING ||
			   dongle_state == DONGLE_DISABLED ||
			   dongle_state == DONGLE_DISCONNECTED) {
			/* Return 0, so hidraw can get the report. */
			return 0;
		}

		dualshock4_parse_report(sc, rd, size);

	} else if ((sc->quirks & NSG_MRXU_REMOTE) && rd[0] == 0x02) {
		nsg_mrxu_parse_report(sc, rd, size);
		return 1;
	}

	if (sc->defer_initialization) {
		sc->defer_initialization = 0;
		sony_schedule_work(sc, SONY_WORKER_STATE);
	}

	return 0;
}

static int sony_mapping(struct hid_device *hdev, struct hid_input *hi,
			struct hid_field *field, struct hid_usage *usage,
			unsigned long **bit, int *max)
{
	struct sony_sc *sc = hid_get_drvdata(hdev);

	if (sc->quirks & BUZZ_CONTROLLER) {
		unsigned int key = usage->hid & HID_USAGE;

		if ((usage->hid & HID_USAGE_PAGE) != HID_UP_BUTTON)
			return -1;

		switch (usage->collection_index) {
		case 1:
			if (key >= ARRAY_SIZE(buzz_keymap))
				return -1;

			key = buzz_keymap[key];
			if (!key)
				return -1;
			break;
		default:
			return -1;
		}

		hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
		return 1;
	}

	if (sc->quirks & PS3REMOTE)
		return ps3remote_mapping(hdev, hi, field, usage, bit, max);

	if (sc->quirks & NAVIGATION_CONTROLLER)
		return navigation_mapping(hdev, hi, field, usage, bit, max);

	if (sc->quirks & SIXAXIS_CONTROLLER)
		return sixaxis_mapping(hdev, hi, field, usage, bit, max);

	if (sc->quirks & DUALSHOCK4_CONTROLLER)
		return ds4_mapping(hdev, hi, field, usage, bit, max);


	/* Let hid-core decide for the others */
	return 0;
}

static int sony_register_touchpad(struct sony_sc *sc, int touch_count,
		int w, int h, int touch_major, int touch_minor, int orientation)
{
	size_t name_sz;
	char *name;
	int ret;

	sc->touchpad = devm_input_allocate_device(&sc->hdev->dev);
	if (!sc->touchpad)
		return -ENOMEM;

	input_set_drvdata(sc->touchpad, sc);
	sc->touchpad->dev.parent = &sc->hdev->dev;
	sc->touchpad->phys = sc->hdev->phys;
	sc->touchpad->uniq = sc->hdev->uniq;
	sc->touchpad->id.bustype = sc->hdev->bus;
	sc->touchpad->id.vendor = sc->hdev->vendor;
	sc->touchpad->id.product = sc->hdev->product;
	sc->touchpad->id.version = sc->hdev->version;

	/* Append a suffix to the controller name as there are various
	 * DS4 compatible non-Sony devices with different names.
	 */
	name_sz = strlen(sc->hdev->name) + sizeof(DS4_TOUCHPAD_SUFFIX);
	name = devm_kzalloc(&sc->hdev->dev, name_sz, GFP_KERNEL);
	if (!name)
		return -ENOMEM;
	snprintf(name, name_sz, "%s" DS4_TOUCHPAD_SUFFIX, sc->hdev->name);
	sc->touchpad->name = name;

	/* We map the button underneath the touchpad to BTN_LEFT. */
	__set_bit(EV_KEY, sc->touchpad->evbit);
	__set_bit(BTN_LEFT, sc->touchpad->keybit);
	__set_bit(INPUT_PROP_BUTTONPAD, sc->touchpad->propbit);

	input_set_abs_params(sc->touchpad, ABS_MT_POSITION_X, 0, w, 0, 0);
	input_set_abs_params(sc->touchpad, ABS_MT_POSITION_Y, 0, h, 0, 0);

	if (touch_major > 0) {
		input_set_abs_params(sc->touchpad, ABS_MT_TOUCH_MAJOR, 
			0, touch_major, 0, 0);
		if (touch_minor > 0)
			input_set_abs_params(sc->touchpad, ABS_MT_TOUCH_MINOR, 
				0, touch_minor, 0, 0);
		if (orientation > 0)
			input_set_abs_params(sc->touchpad, ABS_MT_ORIENTATION, 
				0, orientation, 0, 0);
	}

	if (sc->quirks & NSG_MRXU_REMOTE) {
		__set_bit(EV_REL, sc->touchpad->evbit);
	}

	ret = input_mt_init_slots(sc->touchpad, touch_count, INPUT_MT_POINTER);
	if (ret < 0)
		return ret;

	ret = input_register_device(sc->touchpad);
	if (ret < 0)
		return ret;

	return 0;
}

static int sony_register_sensors(struct sony_sc *sc)
{
	size_t name_sz;
	char *name;
	int ret;
	int range;

	sc->sensor_dev = devm_input_allocate_device(&sc->hdev->dev);
	if (!sc->sensor_dev)
		return -ENOMEM;

	input_set_drvdata(sc->sensor_dev, sc);
	sc->sensor_dev->dev.parent = &sc->hdev->dev;
	sc->sensor_dev->phys = sc->hdev->phys;
	sc->sensor_dev->uniq = sc->hdev->uniq;
	sc->sensor_dev->id.bustype = sc->hdev->bus;
	sc->sensor_dev->id.vendor = sc->hdev->vendor;
	sc->sensor_dev->id.product = sc->hdev->product;
	sc->sensor_dev->id.version = sc->hdev->version;

	/* Append a suffix to the controller name as there are various
	 * DS4 compatible non-Sony devices with different names.
	 */
	name_sz = strlen(sc->hdev->name) + sizeof(SENSOR_SUFFIX);
	name = devm_kzalloc(&sc->hdev->dev, name_sz, GFP_KERNEL);
	if (!name)
		return -ENOMEM;
	snprintf(name, name_sz, "%s" SENSOR_SUFFIX, sc->hdev->name);
	sc->sensor_dev->name = name;

	if (sc->quirks & SIXAXIS_CONTROLLER) {
		/* For the DS3 we only support the accelerometer, which works
		 * quite well even without calibration. The device also has
		 * a 1-axis gyro, but it is very difficult to manage from within
		 * the driver even to get data, the sensor is inaccurate and
		 * the behavior is very different between hardware revisions.
		 */
		input_set_abs_params(sc->sensor_dev, ABS_X, -512, 511, 4, 0);
		input_set_abs_params(sc->sensor_dev, ABS_Y, -512, 511, 4, 0);
		input_set_abs_params(sc->sensor_dev, ABS_Z, -512, 511, 4, 0);
		input_abs_set_res(sc->sensor_dev, ABS_X, SIXAXIS_ACC_RES_PER_G);
		input_abs_set_res(sc->sensor_dev, ABS_Y, SIXAXIS_ACC_RES_PER_G);
		input_abs_set_res(sc->sensor_dev, ABS_Z, SIXAXIS_ACC_RES_PER_G);
	} else if (sc->quirks & DUALSHOCK4_CONTROLLER) {
		range = DS4_ACC_RES_PER_G*4;
		input_set_abs_params(sc->sensor_dev, ABS_X, -range, range, 16, 0);
		input_set_abs_params(sc->sensor_dev, ABS_Y, -range, range, 16, 0);
		input_set_abs_params(sc->sensor_dev, ABS_Z, -range, range, 16, 0);
		input_abs_set_res(sc->sensor_dev, ABS_X, DS4_ACC_RES_PER_G);
		input_abs_set_res(sc->sensor_dev, ABS_Y, DS4_ACC_RES_PER_G);
		input_abs_set_res(sc->sensor_dev, ABS_Z, DS4_ACC_RES_PER_G);

		range = DS4_GYRO_RES_PER_DEG_S*2048;
		input_set_abs_params(sc->sensor_dev, ABS_RX, -range, range, 16, 0);
		input_set_abs_params(sc->sensor_dev, ABS_RY, -range, range, 16, 0);
		input_set_abs_params(sc->sensor_dev, ABS_RZ, -range, range, 16, 0);
		input_abs_set_res(sc->sensor_dev, ABS_RX, DS4_GYRO_RES_PER_DEG_S);
		input_abs_set_res(sc->sensor_dev, ABS_RY, DS4_GYRO_RES_PER_DEG_S);
		input_abs_set_res(sc->sensor_dev, ABS_RZ, DS4_GYRO_RES_PER_DEG_S);

		__set_bit(EV_MSC, sc->sensor_dev->evbit);
		__set_bit(MSC_TIMESTAMP, sc->sensor_dev->mscbit);
	}

	__set_bit(INPUT_PROP_ACCELEROMETER, sc->sensor_dev->propbit);

	ret = input_register_device(sc->sensor_dev);
	if (ret < 0)
		return ret;

	return 0;
}

/*
 * Sending HID_REQ_GET_REPORT changes the operation mode of the ps3 controller
 * to "operational".  Without this, the ps3 controller will not report any
 * events.
 */
static int sixaxis_set_operational_usb(struct hid_device *hdev)
{
	struct sony_sc *sc = hid_get_drvdata(hdev);
	const int buf_size =
		max(SIXAXIS_REPORT_0xF2_SIZE, SIXAXIS_REPORT_0xF5_SIZE);
	u8 *buf;
	int ret;

	buf = kmalloc(buf_size, GFP_KERNEL);
	if (!buf)
		return -ENOMEM;

	ret = hid_hw_raw_request(hdev, 0xf2, buf, SIXAXIS_REPORT_0xF2_SIZE,
				 HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
	if (ret < 0) {
		hid_err(hdev, "can't set operational mode: step 1\n");
		goto out;
	}

	/*
	 * Some compatible controllers like the Speedlink Strike FX and
	 * Gasia need another query plus an USB interrupt to get operational.
	 */
	ret = hid_hw_raw_request(hdev, 0xf5, buf, SIXAXIS_REPORT_0xF5_SIZE,
				 HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
	if (ret < 0) {
		hid_err(hdev, "can't set operational mode: step 2\n");
		goto out;
	}

	/*
	 * But the USB interrupt would cause SHANWAN controllers to
	 * start rumbling non-stop, so skip step 3 for these controllers.
	 */
	if (sc->quirks & SHANWAN_GAMEPAD)
		goto out;

	ret = hid_hw_output_report(hdev, buf, 1);
	if (ret < 0) {
		hid_info(hdev, "can't set operational mode: step 3, ignoring\n");
		ret = 0;
	}

out:
	kfree(buf);

	return ret;
}

static int sixaxis_set_operational_bt(struct hid_device *hdev)
{
	static const u8 report[] = { 0xf4, 0x42, 0x03, 0x00, 0x00 };
	u8 *buf;
	int ret;

	buf = kmemdup(report, sizeof(report), GFP_KERNEL);
	if (!buf)
		return -ENOMEM;

	ret = hid_hw_raw_request(hdev, buf[0], buf, sizeof(report),
				  HID_FEATURE_REPORT, HID_REQ_SET_REPORT);

	kfree(buf);

	return ret;
}

/*
 * Request DS4 calibration data for the motion sensors.
 * For Bluetooth this also affects the operating mode (see below).
 */
static int dualshock4_get_calibration_data(struct sony_sc *sc)
{
	u8 *buf;
	int ret;
	short gyro_pitch_bias, gyro_pitch_plus, gyro_pitch_minus;
	short gyro_yaw_bias, gyro_yaw_plus, gyro_yaw_minus;
	short gyro_roll_bias, gyro_roll_plus, gyro_roll_minus;
	short gyro_speed_plus, gyro_speed_minus;
	short acc_x_plus, acc_x_minus;
	short acc_y_plus, acc_y_minus;
	short acc_z_plus, acc_z_minus;
	int speed_2x;
	int range_2g;

	/* For Bluetooth we use a different request, which supports CRC.
	 * Note: in Bluetooth mode feature report 0x02 also changes the state
	 * of the controller, so that it sends input reports of type 0x11.
	 */
	if (sc->quirks & (DUALSHOCK4_CONTROLLER_USB | DUALSHOCK4_DONGLE)) {
		buf = kmalloc(DS4_FEATURE_REPORT_0x02_SIZE, GFP_KERNEL);
		if (!buf)
			return -ENOMEM;

		ret = hid_hw_raw_request(sc->hdev, 0x02, buf,
					 DS4_FEATURE_REPORT_0x02_SIZE,
					 HID_FEATURE_REPORT,
					 HID_REQ_GET_REPORT);
		if (ret < 0)
			goto err_stop;
	} else {
		u8 bthdr = 0xA3;
		u32 crc;
		u32 report_crc;
		int retries;

		buf = kmalloc(DS4_FEATURE_REPORT_0x05_SIZE, GFP_KERNEL);
		if (!buf)
			return -ENOMEM;

		for (retries = 0; retries < 3; retries++) {
			ret = hid_hw_raw_request(sc->hdev, 0x05, buf,
						 DS4_FEATURE_REPORT_0x05_SIZE,
						 HID_FEATURE_REPORT,
						 HID_REQ_GET_REPORT);
			if (ret < 0)
				goto err_stop;

			/* CRC check */
			crc = crc32_le(0xFFFFFFFF, &bthdr, 1);
			crc = ~crc32_le(crc, buf, DS4_FEATURE_REPORT_0x05_SIZE-4);
			report_crc = get_unaligned_le32(&buf[DS4_FEATURE_REPORT_0x05_SIZE-4]);
			if (crc != report_crc) {
				hid_warn(sc->hdev, "DualShock 4 calibration report's CRC check failed, received crc 0x%0x != 0x%0x\n",
					report_crc, crc);
				if (retries < 2) {
					hid_warn(sc->hdev, "Retrying DualShock 4 get calibration report request\n");
					continue;
				} else {
					ret = -EILSEQ;
					goto err_stop;
				}
			} else {
				break;
			}
		}
	}

	gyro_pitch_bias  = get_unaligned_le16(&buf[1]);
	gyro_yaw_bias    = get_unaligned_le16(&buf[3]);
	gyro_roll_bias   = get_unaligned_le16(&buf[5]);
	if (sc->quirks & DUALSHOCK4_CONTROLLER_USB) {
		gyro_pitch_plus  = get_unaligned_le16(&buf[7]);
		gyro_pitch_minus = get_unaligned_le16(&buf[9]);
		gyro_yaw_plus    = get_unaligned_le16(&buf[11]);
		gyro_yaw_minus   = get_unaligned_le16(&buf[13]);
		gyro_roll_plus   = get_unaligned_le16(&buf[15]);
		gyro_roll_minus  = get_unaligned_le16(&buf[17]);
	} else {
		/* BT + Dongle */
		gyro_pitch_plus  = get_unaligned_le16(&buf[7]);
		gyro_yaw_plus    = get_unaligned_le16(&buf[9]);
		gyro_roll_plus   = get_unaligned_le16(&buf[11]);
		gyro_pitch_minus = get_unaligned_le16(&buf[13]);
		gyro_yaw_minus   = get_unaligned_le16(&buf[15]);
		gyro_roll_minus  = get_unaligned_le16(&buf[17]);
	}
	gyro_speed_plus  = get_unaligned_le16(&buf[19]);
	gyro_speed_minus = get_unaligned_le16(&buf[21]);
	acc_x_plus       = get_unaligned_le16(&buf[23]);
	acc_x_minus      = get_unaligned_le16(&buf[25]);
	acc_y_plus       = get_unaligned_le16(&buf[27]);
	acc_y_minus      = get_unaligned_le16(&buf[29]);
	acc_z_plus       = get_unaligned_le16(&buf[31]);
	acc_z_minus      = get_unaligned_le16(&buf[33]);

	/* Set gyroscope calibration and normalization parameters.
	 * Data values will be normalized to 1/DS4_GYRO_RES_PER_DEG_S degree/s.
	 */
	speed_2x = (gyro_speed_plus + gyro_speed_minus);
	sc->ds4_calib_data[0].abs_code = ABS_RX;
	sc->ds4_calib_data[0].bias = gyro_pitch_bias;
	sc->ds4_calib_data[0].sens_numer = speed_2x*DS4_GYRO_RES_PER_DEG_S;
	sc->ds4_calib_data[0].sens_denom = gyro_pitch_plus - gyro_pitch_minus;

	sc->ds4_calib_data[1].abs_code = ABS_RY;
	sc->ds4_calib_data[1].bias = gyro_yaw_bias;
	sc->ds4_calib_data[1].sens_numer = speed_2x*DS4_GYRO_RES_PER_DEG_S;
	sc->ds4_calib_data[1].sens_denom = gyro_yaw_plus - gyro_yaw_minus;

	sc->ds4_calib_data[2].abs_code = ABS_RZ;
	sc->ds4_calib_data[2].bias = gyro_roll_bias;
	sc->ds4_calib_data[2].sens_numer = speed_2x*DS4_GYRO_RES_PER_DEG_S;
	sc->ds4_calib_data[2].sens_denom = gyro_roll_plus - gyro_roll_minus;

	/* Set accelerometer calibration and normalization parameters.
	 * Data values will be normalized to 1/DS4_ACC_RES_PER_G G.
	 */
	range_2g = acc_x_plus - acc_x_minus;
	sc->ds4_calib_data[3].abs_code = ABS_X;
	sc->ds4_calib_data[3].bias = acc_x_plus - range_2g / 2;
	sc->ds4_calib_data[3].sens_numer = 2*DS4_ACC_RES_PER_G;
	sc->ds4_calib_data[3].sens_denom = range_2g;

	range_2g = acc_y_plus - acc_y_minus;
	sc->ds4_calib_data[4].abs_code = ABS_Y;
	sc->ds4_calib_data[4].bias = acc_y_plus - range_2g / 2;
	sc->ds4_calib_data[4].sens_numer = 2*DS4_ACC_RES_PER_G;
	sc->ds4_calib_data[4].sens_denom = range_2g;

	range_2g = acc_z_plus - acc_z_minus;
	sc->ds4_calib_data[5].abs_code = ABS_Z;
	sc->ds4_calib_data[5].bias = acc_z_plus - range_2g / 2;
	sc->ds4_calib_data[5].sens_numer = 2*DS4_ACC_RES_PER_G;
	sc->ds4_calib_data[5].sens_denom = range_2g;

err_stop:
	kfree(buf);
	return ret;
}

static void dualshock4_calibration_work(struct work_struct *work)
{
	struct sony_sc *sc = container_of(work, struct sony_sc, hotplug_worker);
	unsigned long flags;
	enum ds4_dongle_state dongle_state;
	int ret;

	ret = dualshock4_get_calibration_data(sc);
	if (ret < 0) {
		/* This call is very unlikely to fail for the dongle. When it
		 * fails we are probably in a very bad state, so mark the
		 * dongle as disabled. We will re-enable the dongle if a new
		 * DS4 hotplug is detect from sony_raw_event as any issues
		 * are likely resolved then (the dongle is quite stupid).
		 */
		hid_err(sc->hdev, "DualShock 4 USB dongle: calibration failed, disabling device\n");
		dongle_state = DONGLE_DISABLED;
	} else {
		hid_info(sc->hdev, "DualShock 4 USB dongle: calibration completed\n");
		dongle_state = DONGLE_CONNECTED;
	}

	spin_lock_irqsave(&sc->lock, flags);
	sc->ds4_dongle_state = dongle_state;
	spin_unlock_irqrestore(&sc->lock, flags);
}

static int dualshock4_get_version_info(struct sony_sc *sc)
{
	u8 *buf;
	int ret;

	buf = kmalloc(DS4_FEATURE_REPORT_0xA3_SIZE, GFP_KERNEL);
	if (!buf)
		return -ENOMEM;

	ret = hid_hw_raw_request(sc->hdev, 0xA3, buf,
				 DS4_FEATURE_REPORT_0xA3_SIZE,
				 HID_FEATURE_REPORT,
				 HID_REQ_GET_REPORT);
	if (ret < 0) {
		kfree(buf);
		return ret;
	}

	sc->hw_version = get_unaligned_le16(&buf[35]);
	sc->fw_version = get_unaligned_le16(&buf[41]);

	kfree(buf);
	return 0;
}

static void sixaxis_set_leds_from_id(struct sony_sc *sc)
{
	static const u8 sixaxis_leds[10][4] = {
				{ 0x01, 0x00, 0x00, 0x00 },
				{ 0x00, 0x01, 0x00, 0x00 },
				{ 0x00, 0x00, 0x01, 0x00 },
				{ 0x00, 0x00, 0x00, 0x01 },
				{ 0x01, 0x00, 0x00, 0x01 },
				{ 0x00, 0x01, 0x00, 0x01 },
				{ 0x00, 0x00, 0x01, 0x01 },
				{ 0x01, 0x00, 0x01, 0x01 },
				{ 0x00, 0x01, 0x01, 0x01 },
				{ 0x01, 0x01, 0x01, 0x01 }
	};

	int id = sc->device_id;

	BUILD_BUG_ON(MAX_LEDS < ARRAY_SIZE(sixaxis_leds[0]));

	if (id < 0)
		return;

	id %= 10;
	memcpy(sc->led_state, sixaxis_leds[id], sizeof(sixaxis_leds[id]));
}

static void dualshock4_set_leds_from_id(struct sony_sc *sc)
{
	/* The first 4 color/index entries match what the PS4 assigns */
	static const u8 color_code[7][3] = {
			/* Blue   */	{ 0x00, 0x00, 0x40 },
			/* Red	  */	{ 0x40, 0x00, 0x00 },
			/* Green  */	{ 0x00, 0x40, 0x00 },
			/* Pink   */	{ 0x20, 0x00, 0x20 },
			/* Orange */	{ 0x02, 0x01, 0x00 },
			/* Teal   */	{ 0x00, 0x01, 0x01 },
			/* White  */	{ 0x01, 0x01, 0x01 }
	};

	int id = sc->device_id;

	BUILD_BUG_ON(MAX_LEDS < ARRAY_SIZE(color_code[0]));

	if (id < 0)
		return;

	id %= 7;
	memcpy(sc->led_state, color_code[id], sizeof(color_code[id]));
}

static void buzz_set_leds(struct sony_sc *sc)
{
	struct hid_device *hdev = sc->hdev;
	struct list_head *report_list =
		&hdev->report_enum[HID_OUTPUT_REPORT].report_list;
	struct hid_report *report = list_entry(report_list->next,
		struct hid_report, list);
	s32 *value = report->field[0]->value;

	BUILD_BUG_ON(MAX_LEDS < 4);

	value[0] = 0x00;
	value[1] = sc->led_state[0] ? 0xff : 0x00;
	value[2] = sc->led_state[1] ? 0xff : 0x00;
	value[3] = sc->led_state[2] ? 0xff : 0x00;
	value[4] = sc->led_state[3] ? 0xff : 0x00;
	value[5] = 0x00;
	value[6] = 0x00;
	hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
}

static void sony_set_leds(struct sony_sc *sc)
{
	if (!(sc->quirks & BUZZ_CONTROLLER))
		sony_schedule_work(sc, SONY_WORKER_STATE);
	else
		buzz_set_leds(sc);
}

static void sony_led_set_brightness(struct led_classdev *led,
				    enum led_brightness value)
{
	struct device *dev = led->dev->parent;
	struct hid_device *hdev = to_hid_device(dev);
	struct sony_sc *drv_data;

	int n;
	int force_update;

	drv_data = hid_get_drvdata(hdev);
	if (!drv_data) {
		hid_err(hdev, "No device data\n");
		return;
	}

	/*
	 * The Sixaxis on USB will override any LED settings sent to it
	 * and keep flashing all of the LEDs until the PS button is pressed.
	 * Updates, even if redundant, must be always be sent to the
	 * controller to avoid having to toggle the state of an LED just to
	 * stop the flashing later on.
	 */
	force_update = !!(drv_data->quirks & SIXAXIS_CONTROLLER_USB);

	for (n = 0; n < drv_data->led_count; n++) {
		if (led == drv_data->leds[n] && (force_update ||
			(value != drv_data->led_state[n] ||
			drv_data->led_delay_on[n] ||
			drv_data->led_delay_off[n]))) {

			drv_data->led_state[n] = value;

			/* Setting the brightness stops the blinking */
			drv_data->led_delay_on[n] = 0;
			drv_data->led_delay_off[n] = 0;

			sony_set_leds(drv_data);
			break;
		}
	}
}

static enum led_brightness sony_led_get_brightness(struct led_classdev *led)
{
	struct device *dev = led->dev->parent;
	struct hid_device *hdev = to_hid_device(dev);
	struct sony_sc *drv_data;

	int n;

	drv_data = hid_get_drvdata(hdev);
	if (!drv_data) {
		hid_err(hdev, "No device data\n");
		return LED_OFF;
	}

	for (n = 0; n < drv_data->led_count; n++) {
		if (led == drv_data->leds[n])
			return drv_data->led_state[n];
	}

	return LED_OFF;
}

static int sony_led_blink_set(struct led_classdev *led, unsigned long *delay_on,
				unsigned long *delay_off)
{
	struct device *dev = led->dev->parent;
	struct hid_device *hdev = to_hid_device(dev);
	struct sony_sc *drv_data = hid_get_drvdata(hdev);
	int n;
	u8 new_on, new_off;

	if (!drv_data) {
		hid_err(hdev, "No device data\n");
		return -EINVAL;
	}

	/* Max delay is 255 deciseconds or 2550 milliseconds */
	if (*delay_on > 2550)
		*delay_on = 2550;
	if (*delay_off > 2550)
		*delay_off = 2550;

	/* Blink at 1 Hz if both values are zero */
	if (!*delay_on && !*delay_off)
		*delay_on = *delay_off = 500;

	new_on = *delay_on / 10;
	new_off = *delay_off / 10;

	for (n = 0; n < drv_data->led_count; n++) {
		if (led == drv_data->leds[n])
			break;
	}

	/* This LED is not registered on this device */
	if (n >= drv_data->led_count)
		return -EINVAL;

	/* Don't schedule work if the values didn't change */
	if (new_on != drv_data->led_delay_on[n] ||
		new_off != drv_data->led_delay_off[n]) {
		drv_data->led_delay_on[n] = new_on;
		drv_data->led_delay_off[n] = new_off;
		sony_schedule_work(drv_data, SONY_WORKER_STATE);
	}

	return 0;
}

static int sony_leds_init(struct sony_sc *sc)
{
	struct hid_device *hdev = sc->hdev;
	int n, ret = 0;
	int use_ds4_names;
	struct led_classdev *led;
	size_t name_sz;
	char *name;
	size_t name_len;
	const char *name_fmt;
	static const char * const ds4_name_str[] = { "red", "green", "blue",
						  "global" };
	u8 max_brightness[MAX_LEDS] = { [0 ... (MAX_LEDS - 1)] = 1 };
	u8 use_hw_blink[MAX_LEDS] = { 0 };

	BUG_ON(!(sc->quirks & SONY_LED_SUPPORT));

	if (sc->quirks & BUZZ_CONTROLLER) {
		sc->led_count = 4;
		use_ds4_names = 0;
		name_len = strlen("::buzz#");
		name_fmt = "%s::buzz%d";
		/* Validate expected report characteristics. */
		if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, 0, 0, 7))
			return -ENODEV;
	} else if (sc->quirks & DUALSHOCK4_CONTROLLER) {
		dualshock4_set_leds_from_id(sc);
		sc->led_state[3] = 1;
		sc->led_count = 4;
		memset(max_brightness, 255, 3);
		use_hw_blink[3] = 1;
		use_ds4_names = 1;
		name_len = 0;
		name_fmt = "%s:%s";
	} else if (sc->quirks & MOTION_CONTROLLER) {
		sc->led_count = 3;
		memset(max_brightness, 255, 3);
		use_ds4_names = 1;
		name_len = 0;
		name_fmt = "%s:%s";
	} else if (sc->quirks & NAVIGATION_CONTROLLER) {
		static const u8 navigation_leds[4] = {0x01, 0x00, 0x00, 0x00};

		memcpy(sc->led_state, navigation_leds, sizeof(navigation_leds));
		sc->led_count = 1;
		memset(use_hw_blink, 1, 4);
		use_ds4_names = 0;
		name_len = strlen("::sony#");
		name_fmt = "%s::sony%d";
	} else {
		sixaxis_set_leds_from_id(sc);
		sc->led_count = 4;
		memset(use_hw_blink, 1, 4);
		use_ds4_names = 0;
		name_len = strlen("::sony#");
		name_fmt = "%s::sony%d";
	}

	/*
	 * Clear LEDs as we have no way of reading their initial state. This is
	 * only relevant if the driver is loaded after somebody actively set the
	 * LEDs to on
	 */
	sony_set_leds(sc);

	name_sz = strlen(dev_name(&hdev->dev)) + name_len + 1;

	for (n = 0; n < sc->led_count; n++) {

		if (use_ds4_names)
			name_sz = strlen(dev_name(&hdev->dev)) + strlen(ds4_name_str[n]) + 2;

		led = devm_kzalloc(&hdev->dev, sizeof(struct led_classdev) + name_sz, GFP_KERNEL);
		if (!led) {
			hid_err(hdev, "Couldn't allocate memory for LED %d\n", n);
			return -ENOMEM;
		}

		name = (void *)(&led[1]);
		if (use_ds4_names)
			snprintf(name, name_sz, name_fmt, dev_name(&hdev->dev),
			ds4_name_str[n]);
		else
			snprintf(name, name_sz, name_fmt, dev_name(&hdev->dev), n + 1);
		led->name = name;
		led->brightness = sc->led_state[n];
		led->max_brightness = max_brightness[n];
		led->flags = LED_CORE_SUSPENDRESUME;
		led->brightness_get = sony_led_get_brightness;
		led->brightness_set = sony_led_set_brightness;

		if (use_hw_blink[n])
			led->blink_set = sony_led_blink_set;

		sc->leds[n] = led;

		ret = devm_led_classdev_register(&hdev->dev, led);
		if (ret) {
			hid_err(hdev, "Failed to register LED %d\n", n);
			return ret;
		}
	}

	return 0;
}

static void sixaxis_send_output_report(struct sony_sc *sc)
{
	static const union sixaxis_output_report_01 default_report = {
		.buf = {
			0x01,
			0x01, 0xff, 0x00, 0xff, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00,
			0xff, 0x27, 0x10, 0x00, 0x32,
			0xff, 0x27, 0x10, 0x00, 0x32,
			0xff, 0x27, 0x10, 0x00, 0x32,
			0xff, 0x27, 0x10, 0x00, 0x32,
			0x00, 0x00, 0x00, 0x00, 0x00
		}
	};
	struct sixaxis_output_report *report =
		(struct sixaxis_output_report *)sc->output_report_dmabuf;
	int n;

	/* Initialize the report with default values */
	memcpy(report, &default_report, sizeof(struct sixaxis_output_report));

#ifdef CONFIG_SONY_FF
	report->rumble.right_motor_on = sc->right ? 1 : 0;
	report->rumble.left_motor_force = sc->left;
#endif

	report->leds_bitmap |= sc->led_state[0] << 1;
	report->leds_bitmap |= sc->led_state[1] << 2;
	report->leds_bitmap |= sc->led_state[2] << 3;
	report->leds_bitmap |= sc->led_state[3] << 4;

	/* Set flag for all leds off, required for 3rd party INTEC controller */
	if ((report->leds_bitmap & 0x1E) == 0)
		report->leds_bitmap |= 0x20;

	/*
	 * The LEDs in the report are indexed in reverse order to their
	 * corresponding light on the controller.
	 * Index 0 = LED 4, index 1 = LED 3, etc...
	 *
	 * In the case of both delay values being zero (blinking disabled) the
	 * default report values should be used or the controller LED will be
	 * always off.
	 */
	for (n = 0; n < 4; n++) {
		if (sc->led_delay_on[n] || sc->led_delay_off[n]) {
			report->led[3 - n].duty_off = sc->led_delay_off[n];
			report->led[3 - n].duty_on = sc->led_delay_on[n];
		}
	}

	/* SHANWAN controllers require output reports via intr channel */
	if (sc->quirks & SHANWAN_GAMEPAD)
		hid_hw_output_report(sc->hdev, (u8 *)report,
				sizeof(struct sixaxis_output_report));
	else
		hid_hw_raw_request(sc->hdev, report->report_id, (u8 *)report,
				sizeof(struct sixaxis_output_report),
				HID_OUTPUT_REPORT, HID_REQ_SET_REPORT);
}

static void dualshock4_send_output_report(struct sony_sc *sc)
{
	struct hid_device *hdev = sc->hdev;
	u8 *buf = sc->output_report_dmabuf;
	int offset;

	/*
	 * NOTE: The lower 6 bits of buf[1] field of the Bluetooth report
	 * control the interval at which Dualshock 4 reports data:
	 * 0x00 - 1ms
	 * 0x01 - 1ms
	 * 0x02 - 2ms
	 * 0x3E - 62ms
	 * 0x3F - disabled
	 */
	if (sc->quirks & (DUALSHOCK4_CONTROLLER_USB | DUALSHOCK4_DONGLE)) {
		memset(buf, 0, DS4_OUTPUT_REPORT_0x05_SIZE);
		buf[0] = 0x05;
		buf[1] = 0x07; /* blink + LEDs + motor */
		offset = 4;
	} else {
		memset(buf, 0, DS4_OUTPUT_REPORT_0x11_SIZE);
		buf[0] = 0x11;
		buf[1] = 0xC0 /* HID + CRC */ | sc->ds4_bt_poll_interval;
		buf[3] = 0x07; /* blink + LEDs + motor */
		offset = 6;
	}

#ifdef CONFIG_SONY_FF
	buf[offset++] = sc->right;
	buf[offset++] = sc->left;
#else
	offset += 2;
#endif

	/* LED 3 is the global control */
	if (sc->led_state[3]) {
		buf[offset++] = sc->led_state[0];
		buf[offset++] = sc->led_state[1];
		buf[offset++] = sc->led_state[2];
	} else {
		offset += 3;
	}

	/* If both delay values are zero the DualShock 4 disables blinking. */
	buf[offset++] = sc->led_delay_on[3];
	buf[offset++] = sc->led_delay_off[3];

	if (sc->quirks & (DUALSHOCK4_CONTROLLER_USB | DUALSHOCK4_DONGLE))
		hid_hw_output_report(hdev, buf, DS4_OUTPUT_REPORT_0x05_SIZE);
	else {
		/* CRC generation */
		u8 bthdr = 0xA2;
		u32 crc;

		crc = crc32_le(0xFFFFFFFF, &bthdr, 1);
		crc = ~crc32_le(crc, buf, DS4_OUTPUT_REPORT_0x11_SIZE-4);
		put_unaligned_le32(crc, &buf[74]);
		hid_hw_output_report(hdev, buf, DS4_OUTPUT_REPORT_0x11_SIZE);
	}
}

static void motion_send_output_report(struct sony_sc *sc)
{
	struct hid_device *hdev = sc->hdev;
	struct motion_output_report_02 *report =
		(struct motion_output_report_02 *)sc->output_report_dmabuf;

	memset(report, 0, MOTION_REPORT_0x02_SIZE);

	report->type = 0x02; /* set leds */
	report->r = sc->led_state[0];
	report->g = sc->led_state[1];
	report->b = sc->led_state[2];

#ifdef CONFIG_SONY_FF
	report->rumble = max(sc->right, sc->left);
#endif

	hid_hw_output_report(hdev, (u8 *)report, MOTION_REPORT_0x02_SIZE);
}

static inline void sony_send_output_report(struct sony_sc *sc)
{
	if (sc->send_output_report)
		sc->send_output_report(sc);
}

static void sony_state_worker(struct work_struct *work)
{
	struct sony_sc *sc = container_of(work, struct sony_sc, state_worker);

	sc->send_output_report(sc);
}

static int sony_allocate_output_report(struct sony_sc *sc)
{
	if ((sc->quirks & SIXAXIS_CONTROLLER) ||
			(sc->quirks & NAVIGATION_CONTROLLER))
		sc->output_report_dmabuf =
			devm_kmalloc(&sc->hdev->dev,
				sizeof(union sixaxis_output_report_01),
				GFP_KERNEL);
	else if (sc->quirks & DUALSHOCK4_CONTROLLER_BT)
		sc->output_report_dmabuf = devm_kmalloc(&sc->hdev->dev,
						DS4_OUTPUT_REPORT_0x11_SIZE,
						GFP_KERNEL);
	else if (sc->quirks & (DUALSHOCK4_CONTROLLER_USB | DUALSHOCK4_DONGLE))
		sc->output_report_dmabuf = devm_kmalloc(&sc->hdev->dev,
						DS4_OUTPUT_REPORT_0x05_SIZE,
						GFP_KERNEL);
	else if (sc->quirks & MOTION_CONTROLLER)
		sc->output_report_dmabuf = devm_kmalloc(&sc->hdev->dev,
						MOTION_REPORT_0x02_SIZE,
						GFP_KERNEL);
	else
		return 0;

	if (!sc->output_report_dmabuf)
		return -ENOMEM;

	return 0;
}

#ifdef CONFIG_SONY_FF
static int sony_play_effect(struct input_dev *dev, void *data,
			    struct ff_effect *effect)
{
	struct hid_device *hid = input_get_drvdata(dev);
	struct sony_sc *sc = hid_get_drvdata(hid);

	if (effect->type != FF_RUMBLE)
		return 0;

	sc->left = effect->u.rumble.strong_magnitude / 256;
	sc->right = effect->u.rumble.weak_magnitude / 256;

	sony_schedule_work(sc, SONY_WORKER_STATE);
	return 0;
}

static int sony_init_ff(struct sony_sc *sc)
{
	struct hid_input *hidinput = list_entry(sc->hdev->inputs.next,
						struct hid_input, list);
	struct input_dev *input_dev = hidinput->input;

	input_set_capability(input_dev, EV_FF, FF_RUMBLE);
	return input_ff_create_memless(input_dev, NULL, sony_play_effect);
}

#else
static int sony_init_ff(struct sony_sc *sc)
{
	return 0;
}

#endif

static int sony_battery_get_property(struct power_supply *psy,
				     enum power_supply_property psp,
				     union power_supply_propval *val)
{
	struct sony_sc *sc = power_supply_get_drvdata(psy);
	unsigned long flags;
	int ret = 0;
	u8 battery_charging, battery_capacity, cable_state;

	spin_lock_irqsave(&sc->lock, flags);
	battery_charging = sc->battery_charging;
	battery_capacity = sc->battery_capacity;
	cable_state = sc->cable_state;
	spin_unlock_irqrestore(&sc->lock, flags);

	switch (psp) {
	case POWER_SUPPLY_PROP_PRESENT:
		val->intval = 1;
		break;
	case POWER_SUPPLY_PROP_SCOPE:
		val->intval = POWER_SUPPLY_SCOPE_DEVICE;
		break;
	case POWER_SUPPLY_PROP_CAPACITY:
		val->intval = battery_capacity;
		break;
	case POWER_SUPPLY_PROP_STATUS:
		if (battery_charging)
			val->intval = POWER_SUPPLY_STATUS_CHARGING;
		else
			if (battery_capacity == 100 && cable_state)
				val->intval = POWER_SUPPLY_STATUS_FULL;
			else
				val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
		break;
	default:
		ret = -EINVAL;
		break;
	}
	return ret;
}

static int sony_battery_probe(struct sony_sc *sc, int append_dev_id)
{
	const char *battery_str_fmt = append_dev_id ?
		"sony_controller_battery_%pMR_%i" :
		"sony_controller_battery_%pMR";
	struct power_supply_config psy_cfg = { .drv_data = sc, };
	struct hid_device *hdev = sc->hdev;
	int ret;

	/*
	 * Set the default battery level to 100% to avoid low battery warnings
	 * if the battery is polled before the first device report is received.
	 */
	sc->battery_capacity = 100;

	sc->battery_desc.properties = sony_battery_props;
	sc->battery_desc.num_properties = ARRAY_SIZE(sony_battery_props);
	sc->battery_desc.get_property = sony_battery_get_property;
	sc->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY;
	sc->battery_desc.use_for_apm = 0;
	sc->battery_desc.name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
					  battery_str_fmt, sc->mac_address, sc->device_id);
	if (!sc->battery_desc.name)
		return -ENOMEM;

	sc->battery = devm_power_supply_register(&hdev->dev, &sc->battery_desc,
					    &psy_cfg);
	if (IS_ERR(sc->battery)) {
		ret = PTR_ERR(sc->battery);
		hid_err(hdev, "Unable to register battery device\n");
		return ret;
	}

	power_supply_powers(sc->battery, &hdev->dev);
	return 0;
}

/*
 * If a controller is plugged in via USB while already connected via Bluetooth
 * it will show up as two devices. A global list of connected controllers and
 * their MAC addresses is maintained to ensure that a device is only connected
 * once.
 *
 * Some USB-only devices masquerade as Sixaxis controllers and all have the
 * same dummy Bluetooth address, so a comparison of the connection type is
 * required.  Devices are only rejected in the case where two devices have
 * matching Bluetooth addresses on different bus types.
 */
static inline int sony_compare_connection_type(struct sony_sc *sc0,
						struct sony_sc *sc1)
{
	const int sc0_not_bt = !(sc0->quirks & SONY_BT_DEVICE);
	const int sc1_not_bt = !(sc1->quirks & SONY_BT_DEVICE);

	return sc0_not_bt == sc1_not_bt;
}

static int sony_check_add_dev_list(struct sony_sc *sc)
{
	struct sony_sc *entry;
	unsigned long flags;
	int ret;

	spin_lock_irqsave(&sony_dev_list_lock, flags);

	list_for_each_entry(entry, &sony_device_list, list_node) {
		ret = memcmp(sc->mac_address, entry->mac_address,
				sizeof(sc->mac_address));
		if (!ret) {
			if (sony_compare_connection_type(sc, entry)) {
				ret = 1;
			} else {
				ret = -EEXIST;
				hid_info(sc->hdev,
				"controller with MAC address %pMR already connected\n",
				sc->mac_address);
			}
			goto unlock;
		}
	}

	ret = 0;
	list_add(&(sc->list_node), &sony_device_list);

unlock:
	spin_unlock_irqrestore(&sony_dev_list_lock, flags);
	return ret;
}

static void sony_remove_dev_list(struct sony_sc *sc)
{
	unsigned long flags;

	if (sc->list_node.next) {
		spin_lock_irqsave(&sony_dev_list_lock, flags);
		list_del(&(sc->list_node));
		spin_unlock_irqrestore(&sony_dev_list_lock, flags);
	}
}

static int sony_get_bt_devaddr(struct sony_sc *sc)
{
	int ret;

	/* HIDP stores the device MAC address as a string in the uniq field. */
	ret = strlen(sc->hdev->uniq);
	if (ret != 17)
		return -EINVAL;

	ret = sscanf(sc->hdev->uniq,
		"%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
		&sc->mac_address[5], &sc->mac_address[4], &sc->mac_address[3],
		&sc->mac_address[2], &sc->mac_address[1], &sc->mac_address[0]);

	if (ret != 6)
		return -EINVAL;

	return 0;
}

static int sony_check_add(struct sony_sc *sc)
{
	u8 *buf = NULL;
	int n, ret;

	if ((sc->quirks & DUALSHOCK4_CONTROLLER_BT) ||
	    (sc->quirks & MOTION_CONTROLLER_BT) ||
	    (sc->quirks & NAVIGATION_CONTROLLER_BT) ||
	    (sc->quirks & SIXAXIS_CONTROLLER_BT)) {
		/*
		 * sony_get_bt_devaddr() attempts to parse the Bluetooth MAC
		 * address from the uniq string where HIDP stores it.
		 * As uniq cannot be guaranteed to be a MAC address in all cases
		 * a failure of this function should not prevent the connection.
		 */
		if (sony_get_bt_devaddr(sc) < 0) {
			hid_warn(sc->hdev, "UNIQ does not contain a MAC address; duplicate check skipped\n");
			return 0;
		}
	} else if (sc->quirks & (DUALSHOCK4_CONTROLLER_USB | DUALSHOCK4_DONGLE)) {
		buf = kmalloc(DS4_FEATURE_REPORT_0x81_SIZE, GFP_KERNEL);
		if (!buf)
			return -ENOMEM;

		/*
		 * The MAC address of a DS4 controller connected via USB can be
		 * retrieved with feature report 0x81. The address begins at
		 * offset 1.
		 */
		ret = hid_hw_raw_request(sc->hdev, 0x81, buf,
				DS4_FEATURE_REPORT_0x81_SIZE, HID_FEATURE_REPORT,
				HID_REQ_GET_REPORT);

		if (ret != DS4_FEATURE_REPORT_0x81_SIZE) {
			hid_err(sc->hdev, "failed to retrieve feature report 0x81 with the DualShock 4 MAC address\n");
			ret = ret < 0 ? ret : -EINVAL;
			goto out_free;
		}

		memcpy(sc->mac_address, &buf[1], sizeof(sc->mac_address));

		snprintf(sc->hdev->uniq, sizeof(sc->hdev->uniq),
			 "%pMR", sc->mac_address);
	} else if ((sc->quirks & SIXAXIS_CONTROLLER_USB) ||
			(sc->quirks & NAVIGATION_CONTROLLER_USB)) {
		buf = kmalloc(SIXAXIS_REPORT_0xF2_SIZE, GFP_KERNEL);
		if (!buf)
			return -ENOMEM;

		/*
		 * The MAC address of a Sixaxis controller connected via USB can
		 * be retrieved with feature report 0xf2. The address begins at
		 * offset 4.
		 */
		ret = hid_hw_raw_request(sc->hdev, 0xf2, buf,
				SIXAXIS_REPORT_0xF2_SIZE, HID_FEATURE_REPORT,
				HID_REQ_GET_REPORT);

		if (ret != SIXAXIS_REPORT_0xF2_SIZE) {
			hid_err(sc->hdev, "failed to retrieve feature report 0xf2 with the Sixaxis MAC address\n");
			ret = ret < 0 ? ret : -EINVAL;
			goto out_free;
		}

		/*
		 * The Sixaxis device MAC in the report is big-endian and must
		 * be byte-swapped.
		 */
		for (n = 0; n < 6; n++)
			sc->mac_address[5-n] = buf[4+n];

		snprintf(sc->hdev->uniq, sizeof(sc->hdev->uniq),
			 "%pMR", sc->mac_address);
	} else {
		return 0;
	}

	ret = sony_check_add_dev_list(sc);

out_free:

	kfree(buf);

	return ret;
}

static int sony_set_device_id(struct sony_sc *sc)
{
	int ret;

	/*
	 * Only DualShock 4 or Sixaxis controllers get an id.
	 * All others are set to -1.
	 */
	if ((sc->quirks & SIXAXIS_CONTROLLER) ||
	    (sc->quirks & DUALSHOCK4_CONTROLLER)) {
		ret = ida_simple_get(&sony_device_id_allocator, 0, 0,
					GFP_KERNEL);
		if (ret < 0) {
			sc->device_id = -1;
			return ret;
		}
		sc->device_id = ret;
	} else {
		sc->device_id = -1;
	}

	return 0;
}

static void sony_release_device_id(struct sony_sc *sc)
{
	if (sc->device_id >= 0) {
		ida_simple_remove(&sony_device_id_allocator, sc->device_id);
		sc->device_id = -1;
	}
}

static inline void sony_init_output_report(struct sony_sc *sc,
				void (*send_output_report)(struct sony_sc *))
{
	sc->send_output_report = send_output_report;

	if (!sc->state_worker_initialized)
		INIT_WORK(&sc->state_worker, sony_state_worker);

	sc->state_worker_initialized = 1;
}

static inline void sony_cancel_work_sync(struct sony_sc *sc)
{
	if (sc->hotplug_worker_initialized)
		cancel_work_sync(&sc->hotplug_worker);
	if (sc->state_worker_initialized)
		cancel_work_sync(&sc->state_worker);
}


static int sony_input_configured(struct hid_device *hdev,
					struct hid_input *hidinput)
{
	struct sony_sc *sc = hid_get_drvdata(hdev);
	int append_dev_id;
	int ret;

	ret = sony_set_device_id(sc);
	if (ret < 0) {
		hid_err(hdev, "failed to allocate the device id\n");
		goto err_stop;
	}

	ret = append_dev_id = sony_check_add(sc);
	if (ret < 0)
		goto err_stop;

	ret = sony_allocate_output_report(sc);
	if (ret < 0) {
		hid_err(hdev, "failed to allocate the output report buffer\n");
		goto err_stop;
	}

	if (sc->quirks & NAVIGATION_CONTROLLER_USB) {
		/*
		 * The Sony Sixaxis does not handle HID Output Reports on the
		 * Interrupt EP like it could, so we need to force HID Output
		 * Reports to use HID_REQ_SET_REPORT on the Control EP.
		 *
		 * There is also another issue about HID Output Reports via USB,
		 * the Sixaxis does not want the report_id as part of the data
		 * packet, so we have to discard buf[0] when sending the actual
		 * control message, even for numbered reports, humpf!
		 *
		 * Additionally, the Sixaxis on USB isn't properly initialized
		 * until the PS logo button is pressed and as such won't retain
		 * any state set by an output report, so the initial
		 * configuration report is deferred until the first input
		 * report arrives.
		 */
		hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;
		hdev->quirks |= HID_QUIRK_SKIP_OUTPUT_REPORT_ID;
		sc->defer_initialization = 1;

		ret = sixaxis_set_operational_usb(hdev);
		if (ret < 0) {
			hid_err(hdev, "Failed to set controller into operational mode\n");
			goto err_stop;
		}

		sony_init_output_report(sc, sixaxis_send_output_report);
	} else if (sc->quirks & NAVIGATION_CONTROLLER_BT) {
		/*
		 * The Navigation controller wants output reports sent on the ctrl
		 * endpoint when connected via Bluetooth.
		 */
		hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;

		ret = sixaxis_set_operational_bt(hdev);
		if (ret < 0) {
			hid_err(hdev, "Failed to set controller into operational mode\n");
			goto err_stop;
		}

		sony_init_output_report(sc, sixaxis_send_output_report);
	} else if (sc->quirks & SIXAXIS_CONTROLLER_USB) {
		/*
		 * The Sony Sixaxis does not handle HID Output Reports on the
		 * Interrupt EP and the device only becomes active when the
		 * PS button is pressed. See comment for Navigation controller
		 * above for more details.
		 */
		hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;
		hdev->quirks |= HID_QUIRK_SKIP_OUTPUT_REPORT_ID;
		sc->defer_initialization = 1;

		ret = sixaxis_set_operational_usb(hdev);
		if (ret < 0) {
			hid_err(hdev, "Failed to set controller into operational mode\n");
			goto err_stop;
		}

		ret = sony_register_sensors(sc);
		if (ret) {
			hid_err(sc->hdev,
			"Unable to initialize motion sensors: %d\n", ret);
			goto err_stop;
		}

		sony_init_output_report(sc, sixaxis_send_output_report);
	} else if (sc->quirks & SIXAXIS_CONTROLLER_BT) {
		/*
		 * The Sixaxis wants output reports sent on the ctrl endpoint
		 * when connected via Bluetooth.
		 */
		hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;

		ret = sixaxis_set_operational_bt(hdev);
		if (ret < 0) {
			hid_err(hdev, "Failed to set controller into operational mode\n");
			goto err_stop;
		}

		ret = sony_register_sensors(sc);
		if (ret) {
			hid_err(sc->hdev,
			"Unable to initialize motion sensors: %d\n", ret);
			goto err_stop;
		}

		sony_init_output_report(sc, sixaxis_send_output_report);
	} else if (sc->quirks & DUALSHOCK4_CONTROLLER) {
		ret = dualshock4_get_calibration_data(sc);
		if (ret < 0) {
			hid_err(hdev, "Failed to get calibration data from Dualshock 4\n");
			goto err_stop;
		}

		ret = dualshock4_get_version_info(sc);
		if (ret < 0) {
			hid_err(sc->hdev, "Failed to get version data from Dualshock 4\n");
			goto err_stop;
		}

		ret = device_create_file(&sc->hdev->dev, &dev_attr_firmware_version);
		if (ret) {
			/* Make zero for cleanup reasons of sysfs entries. */
			sc->fw_version = 0;
			sc->hw_version = 0;
			hid_err(sc->hdev, "can't create sysfs firmware_version attribute err: %d\n", ret);
			goto err_stop;
		}

		ret = device_create_file(&sc->hdev->dev, &dev_attr_hardware_version);
		if (ret) {
			sc->hw_version = 0;
			hid_err(sc->hdev, "can't create sysfs hardware_version attribute err: %d\n", ret);
			goto err_stop;
		}

		/*
		 * The Dualshock 4 touchpad supports 2 touches and has a
		 * resolution of 1920x942 (44.86 dots/mm).
		 */
		ret = sony_register_touchpad(sc, 2, 1920, 942, 0, 0, 0);
		if (ret) {
			hid_err(sc->hdev,
			"Unable to initialize multi-touch slots: %d\n",
			ret);
			goto err_stop;
		}

		ret = sony_register_sensors(sc);
		if (ret) {
			hid_err(sc->hdev,
			"Unable to initialize motion sensors: %d\n", ret);
			goto err_stop;
		}

		if (sc->quirks & DUALSHOCK4_CONTROLLER_BT) {
			sc->ds4_bt_poll_interval = DS4_BT_DEFAULT_POLL_INTERVAL_MS;
			ret = device_create_file(&sc->hdev->dev, &dev_attr_bt_poll_interval);
			if (ret)
				hid_warn(sc->hdev,
				 "can't create sysfs bt_poll_interval attribute err: %d\n",
				 ret);
		}

		if (sc->quirks & DUALSHOCK4_DONGLE) {
			INIT_WORK(&sc->hotplug_worker, dualshock4_calibration_work);
			sc->hotplug_worker_initialized = 1;
			sc->ds4_dongle_state = DONGLE_DISCONNECTED;
		}

		sony_init_output_report(sc, dualshock4_send_output_report);
	} else if (sc->quirks & NSG_MRXU_REMOTE) {
		/*
		 * The NSG-MRxU touchpad supports 2 touches and has a
		 * resolution of 1667x1868
		 */
		ret = sony_register_touchpad(sc, 2,
			NSG_MRXU_MAX_X, NSG_MRXU_MAX_Y, 15, 15, 1);
		if (ret) {
			hid_err(sc->hdev,
			"Unable to initialize multi-touch slots: %d\n",
			ret);
			goto err_stop;
		}

	} else if (sc->quirks & MOTION_CONTROLLER) {
		sony_init_output_report(sc, motion_send_output_report);
	} else {
		ret = 0;
	}

	if (sc->quirks & SONY_LED_SUPPORT) {
		ret = sony_leds_init(sc);
		if (ret < 0)
			goto err_stop;
	}

	if (sc->quirks & SONY_BATTERY_SUPPORT) {
		ret = sony_battery_probe(sc, append_dev_id);
		if (ret < 0)
			goto err_stop;

		/* Open the device to receive reports with battery info */
		ret = hid_hw_open(hdev);
		if (ret < 0) {
			hid_err(hdev, "hw open failed\n");
			goto err_stop;
		}
	}

	if (sc->quirks & SONY_FF_SUPPORT) {
		ret = sony_init_ff(sc);
		if (ret < 0)
			goto err_close;
	}

	return 0;
err_close:
	hid_hw_close(hdev);
err_stop:
	/* Piggy back on the default ds4_bt_ poll_interval to determine
	 * if we need to remove the file as we don't know for sure if we
	 * executed that logic.
	 */
	if (sc->ds4_bt_poll_interval)
		device_remove_file(&sc->hdev->dev, &dev_attr_bt_poll_interval);
	if (sc->fw_version)
		device_remove_file(&sc->hdev->dev, &dev_attr_firmware_version);
	if (sc->hw_version)
		device_remove_file(&sc->hdev->dev, &dev_attr_hardware_version);
	sony_cancel_work_sync(sc);
	sony_remove_dev_list(sc);
	sony_release_device_id(sc);
	hid_hw_stop(hdev);
	return ret;
}

static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
	int ret;
	unsigned long quirks = id->driver_data;
	struct sony_sc *sc;
	unsigned int connect_mask = HID_CONNECT_DEFAULT;

	if (!strcmp(hdev->name, "FutureMax Dance Mat"))
		quirks |= FUTUREMAX_DANCE_MAT;

	if (!strcmp(hdev->name, "SHANWAN PS3 GamePad"))
		quirks |= SHANWAN_GAMEPAD;

	sc = devm_kzalloc(&hdev->dev, sizeof(*sc), GFP_KERNEL);
	if (sc == NULL) {
		hid_err(hdev, "can't alloc sony descriptor\n");
		return -ENOMEM;
	}

	spin_lock_init(&sc->lock);

	sc->quirks = quirks;
	hid_set_drvdata(hdev, sc);
	sc->hdev = hdev;

	ret = hid_parse(hdev);
	if (ret) {
		hid_err(hdev, "parse failed\n");
		return ret;
	}

	if (sc->quirks & VAIO_RDESC_CONSTANT)
		connect_mask |= HID_CONNECT_HIDDEV_FORCE;
	else if (sc->quirks & SIXAXIS_CONTROLLER)
		connect_mask |= HID_CONNECT_HIDDEV_FORCE;

	/* Patch the hw version on DS3/4 compatible devices, so applications can
	 * distinguish between the default HID mappings and the mappings defined
	 * by the Linux game controller spec. This is important for the SDL2
	 * library, which has a game controller database, which uses device ids
	 * in combination with version as a key.
	 */
	if (sc->quirks & (SIXAXIS_CONTROLLER | DUALSHOCK4_CONTROLLER))
		hdev->version |= 0x8000;

	ret = hid_hw_start(hdev, connect_mask);
	if (ret) {
		hid_err(hdev, "hw start failed\n");
		return ret;
	}

	/* sony_input_configured can fail, but this doesn't result
	 * in hid_hw_start failures (intended). Check whether
	 * the HID layer claimed the device else fail.
	 * We don't know the actual reason for the failure, most
	 * likely it is due to EEXIST in case of double connection
	 * of USB and Bluetooth, but could have been due to ENOMEM
	 * or other reasons as well.
	 */
	if (!(hdev->claimed & HID_CLAIMED_INPUT)) {
		hid_err(hdev, "failed to claim input\n");
		return -ENODEV;
	}

	return ret;
}

static void sony_remove(struct hid_device *hdev)
{
	struct sony_sc *sc = hid_get_drvdata(hdev);

	hid_hw_close(hdev);

	if (sc->quirks & DUALSHOCK4_CONTROLLER_BT)
		device_remove_file(&sc->hdev->dev, &dev_attr_bt_poll_interval);

	if (sc->fw_version)
		device_remove_file(&sc->hdev->dev, &dev_attr_firmware_version);

	if (sc->hw_version)
		device_remove_file(&sc->hdev->dev, &dev_attr_hardware_version);

	sony_cancel_work_sync(sc);

	sony_remove_dev_list(sc);

	sony_release_device_id(sc);

	hid_hw_stop(hdev);
}

#ifdef CONFIG_PM

static int sony_suspend(struct hid_device *hdev, pm_message_t message)
{
#ifdef CONFIG_SONY_FF

	/* On suspend stop any running force-feedback events */
	if (SONY_FF_SUPPORT) {
		struct sony_sc *sc = hid_get_drvdata(hdev);

		sc->left = sc->right = 0;
		sony_send_output_report(sc);
	}

#endif
	return 0;
}

static int sony_resume(struct hid_device *hdev)
{
	struct sony_sc *sc = hid_get_drvdata(hdev);

	/*
	 * The Sixaxis and navigation controllers on USB need to be
	 * reinitialized on resume or they won't behave properly.
	 */
	if ((sc->quirks & SIXAXIS_CONTROLLER_USB) ||
		(sc->quirks & NAVIGATION_CONTROLLER_USB)) {
		sixaxis_set_operational_usb(sc->hdev);
		sc->defer_initialization = 1;
	}

	return 0;
}

#endif

static const struct hid_device_id sony_devices[] = {
	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER),
		.driver_data = SIXAXIS_CONTROLLER_USB },
	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER),
		.driver_data = NAVIGATION_CONTROLLER_USB },
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER),
		.driver_data = NAVIGATION_CONTROLLER_BT },
	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_MOTION_CONTROLLER),
		.driver_data = MOTION_CONTROLLER_USB },
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_MOTION_CONTROLLER),
		.driver_data = MOTION_CONTROLLER_BT },
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER),
		.driver_data = SIXAXIS_CONTROLLER_BT },
	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE),
		.driver_data = VAIO_RDESC_CONSTANT },
	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGP_MOUSE),
		.driver_data = VAIO_RDESC_CONSTANT },
	/*
	 * Wired Buzz Controller. Reported as Sony Hub from its USB ID and as
	 * Logitech joystick from the device descriptor.
	 */
	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_BUZZ_CONTROLLER),
		.driver_data = BUZZ_CONTROLLER },
	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_WIRELESS_BUZZ_CONTROLLER),
		.driver_data = BUZZ_CONTROLLER },
	/* PS3 BD Remote Control */
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_BDREMOTE),
		.driver_data = PS3REMOTE },
	/* Logitech Harmony Adapter for PS3 */
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3),
		.driver_data = PS3REMOTE },
	/* SMK-Link PS3 BD Remote Control */
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_PS3_BDREMOTE),
		.driver_data = PS3REMOTE },
	/* Sony Dualshock 4 controllers for PS4 */
	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER),
		.driver_data = DUALSHOCK4_CONTROLLER_USB },
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER),
		.driver_data = DUALSHOCK4_CONTROLLER_BT },
	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_2),
		.driver_data = DUALSHOCK4_CONTROLLER_USB },
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_2),
		.driver_data = DUALSHOCK4_CONTROLLER_BT },
	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_DONGLE),
		.driver_data = DUALSHOCK4_DONGLE },
	/* Nyko Core Controller for PS3 */
	{ HID_USB_DEVICE(USB_VENDOR_ID_SINO_LITE, USB_DEVICE_ID_SINO_LITE_CONTROLLER),
		.driver_data = SIXAXIS_CONTROLLER_USB | SINO_LITE_CONTROLLER },
	/* SMK-Link NSG-MR5U Remote Control */
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_NSG_MR5U_REMOTE),
		.driver_data = NSG_MR5U_REMOTE_BT },
	/* SMK-Link NSG-MR7U Remote Control */
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_NSG_MR7U_REMOTE),
		.driver_data = NSG_MR7U_REMOTE_BT },
	{ }
};
MODULE_DEVICE_TABLE(hid, sony_devices);

static struct hid_driver sony_driver = {
	.name             = "sony",
	.id_table         = sony_devices,
	.input_mapping    = sony_mapping,
	.input_configured = sony_input_configured,
	.probe            = sony_probe,
	.remove           = sony_remove,
	.report_fixup     = sony_report_fixup,
	.raw_event        = sony_raw_event,

#ifdef CONFIG_PM
	.suspend          = sony_suspend,
	.resume	          = sony_resume,
	.reset_resume     = sony_resume,
#endif
};

static int __init sony_init(void)
{
	dbg_hid("Sony:%s\n", __func__);

	return hid_register_driver(&sony_driver);
}

static void __exit sony_exit(void)
{
	dbg_hid("Sony:%s\n", __func__);

	hid_unregister_driver(&sony_driver);
	ida_destroy(&sony_device_id_allocator);
}
module_init(sony_init);
module_exit(sony_exit);

MODULE_LICENSE("GPL");