summaryrefslogtreecommitdiffstats
path: root/sound/soc/intel/atom/sst-atom-controls.c
blob: b97e6adcf1b268d993493508fdcab21640072af4 (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
/*
 *  sst-atom-controls.c - Intel MID Platform driver DPCM ALSA controls for Mrfld
 *
 *  Copyright (C) 2013-14 Intel Corp
 *  Author: Omair Mohammed Abdullah <omair.m.abdullah@intel.com>
 *	Vinod Koul <vinod.koul@intel.com>
 *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; version 2 of the License.
 *
 *  This program is distributed in the hope that it will be useful, but
 *  WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  General Public License for more details.
 *
 *  In the dpcm driver modelling when a particular FE/BE/Mixer/Pipe is active
 *  we forward the settings and parameters, rest we keep the values  in
 *  driver and forward when DAPM enables them
 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 */
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/slab.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include "sst-mfld-platform.h"
#include "sst-atom-controls.h"

static int sst_fill_byte_control(struct sst_data *drv,
					 u8 ipc_msg, u8 block,
					 u8 task_id, u8 pipe_id,
					 u16 len, void *cmd_data)
{
	struct snd_sst_bytes_v2 *byte_data = drv->byte_stream;

	byte_data->type = SST_CMD_BYTES_SET;
	byte_data->ipc_msg = ipc_msg;
	byte_data->block = block;
	byte_data->task_id = task_id;
	byte_data->pipe_id = pipe_id;

	if (len > SST_MAX_BIN_BYTES - sizeof(*byte_data)) {
		dev_err(&drv->pdev->dev, "command length too big (%u)", len);
		return -EINVAL;
	}
	byte_data->len = len;
	memcpy(byte_data->bytes, cmd_data, len);
	print_hex_dump_bytes("writing to lpe: ", DUMP_PREFIX_OFFSET,
			     byte_data, len + sizeof(*byte_data));
	return 0;
}

static int sst_fill_and_send_cmd_unlocked(struct sst_data *drv,
				 u8 ipc_msg, u8 block, u8 task_id, u8 pipe_id,
				 void *cmd_data, u16 len)
{
	int ret = 0;

	ret = sst_fill_byte_control(drv, ipc_msg,
				block, task_id, pipe_id, len, cmd_data);
	if (ret < 0)
		return ret;
	return sst->ops->send_byte_stream(sst->dev, drv->byte_stream);
}

/**
 * sst_fill_and_send_cmd - generate the IPC message and send it to the FW
 * @ipc_msg:	type of IPC (CMD, SET_PARAMS, GET_PARAMS)
 * @cmd_data:	the IPC payload
 */
static int sst_fill_and_send_cmd(struct sst_data *drv,
				 u8 ipc_msg, u8 block, u8 task_id, u8 pipe_id,
				 void *cmd_data, u16 len)
{
	int ret;

	mutex_lock(&drv->lock);
	ret = sst_fill_and_send_cmd_unlocked(drv, ipc_msg, block,
					task_id, pipe_id, cmd_data, len);
	mutex_unlock(&drv->lock);

	return ret;
}

/**
 * tx map value is a bitfield where each bit represents a FW channel
 *
 *			3 2 1 0		# 0 = codec0, 1 = codec1
 *			RLRLRLRL	# 3, 4 = reserved
 *
 * e.g. slot 0 rx map =	00001100b -> data from slot 0 goes into codec_in1 L,R
 */
static u8 sst_ssp_tx_map[SST_MAX_TDM_SLOTS] = {
	0x1, 0x2, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, /* default rx map */
};

/**
 * rx map value is a bitfield where each bit represents a slot
 *
 *			  76543210	# 0 = slot 0, 1 = slot 1
 *
 * e.g. codec1_0 tx map = 00000101b -> data from codec_out1_0 goes into slot 0, 2
 */
static u8 sst_ssp_rx_map[SST_MAX_TDM_SLOTS] = {
	0x1, 0x2, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, /* default tx map */
};

/**
 * NOTE: this is invoked with lock held
 */
static int sst_send_slot_map(struct sst_data *drv)
{
	struct sst_param_sba_ssp_slot_map cmd;

	SST_FILL_DEFAULT_DESTINATION(cmd.header.dst);
	cmd.header.command_id = SBA_SET_SSP_SLOT_MAP;
	cmd.header.length = sizeof(struct sst_param_sba_ssp_slot_map)
				- sizeof(struct sst_dsp_header);

	cmd.param_id = SBA_SET_SSP_SLOT_MAP;
	cmd.param_len = sizeof(cmd.rx_slot_map) + sizeof(cmd.tx_slot_map)
					+ sizeof(cmd.ssp_index);
	cmd.ssp_index = SSP_CODEC;

	memcpy(cmd.rx_slot_map, &sst_ssp_tx_map[0], sizeof(cmd.rx_slot_map));
	memcpy(cmd.tx_slot_map, &sst_ssp_rx_map[0], sizeof(cmd.tx_slot_map));

	return sst_fill_and_send_cmd_unlocked(drv, SST_IPC_IA_SET_PARAMS,
			SST_FLAG_BLOCKED, SST_TASK_SBA, 0, &cmd,
			      sizeof(cmd.header) + cmd.header.length);
}

static int sst_slot_enum_info(struct snd_kcontrol *kcontrol,
		       struct snd_ctl_elem_info *uinfo)
{
	struct sst_enum *e = (struct sst_enum *)kcontrol->private_value;

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = e->max;

	if (uinfo->value.enumerated.item > e->max - 1)
		uinfo->value.enumerated.item = e->max - 1;
	strcpy(uinfo->value.enumerated.name,
		e->texts[uinfo->value.enumerated.item]);

	return 0;
}

/**
 * sst_slot_get - get the status of the interleaver/deinterleaver control
 *
 * Searches the map where the control status is stored, and gets the
 * channel/slot which is currently set for this enumerated control. Since it is
 * an enumerated control, there is only one possible value.
 */
static int sst_slot_get(struct snd_kcontrol *kcontrol,
			struct snd_ctl_elem_value *ucontrol)
{
	struct sst_enum *e = (void *)kcontrol->private_value;
	struct snd_soc_component *c = snd_kcontrol_chip(kcontrol);
	struct sst_data *drv = snd_soc_component_get_drvdata(c);
	unsigned int ctl_no = e->reg;
	unsigned int is_tx = e->tx;
	unsigned int val, mux;
	u8 *map = is_tx ? sst_ssp_rx_map : sst_ssp_tx_map;

	mutex_lock(&drv->lock);
	val = 1 << ctl_no;
	/* search which slot/channel has this bit set - there should be only one */
	for (mux = e->max; mux > 0;  mux--)
		if (map[mux - 1] & val)
			break;

	ucontrol->value.enumerated.item[0] = mux;
	mutex_unlock(&drv->lock);

	dev_dbg(c->dev, "%s - %s map = %#x\n",
			is_tx ? "tx channel" : "rx slot",
			 e->texts[mux], mux ? map[mux - 1] : -1);
	return 0;
}

/* sst_check_and_send_slot_map - helper for checking power state and sending
 * slot map cmd
 *
 * called with lock held
 */
static int sst_check_and_send_slot_map(struct sst_data *drv, struct snd_kcontrol *kcontrol)
{
	struct sst_enum *e = (void *)kcontrol->private_value;
	int ret = 0;

	if (e->w && e->w->power)
		ret = sst_send_slot_map(drv);
	else
		dev_err(&drv->pdev->dev, "Slot control: %s doesn't have DAPM widget!!!\n",
				kcontrol->id.name);
	return ret;
}

/**
 * sst_slot_put - set the status of interleaver/deinterleaver control
 *
 * (de)interleaver controls are defined in opposite sense to be user-friendly
 *
 * Instead of the enum value being the value written to the register, it is the
 * register address; and the kcontrol number (register num) is the value written
 * to the register. This is so that there can be only one value for each
 * slot/channel since there is only one control for each slot/channel.
 *
 * This means that whenever an enum is set, we need to clear the bit
 * for that kcontrol_no for all the interleaver OR deinterleaver registers
 */
static int sst_slot_put(struct snd_kcontrol *kcontrol,
			struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_component *c = snd_soc_kcontrol_component(kcontrol);
	struct sst_data *drv = snd_soc_component_get_drvdata(c);
	struct sst_enum *e = (void *)kcontrol->private_value;
	int i, ret = 0;
	unsigned int ctl_no = e->reg;
	unsigned int is_tx = e->tx;
	unsigned int slot_channel_no;
	unsigned int val, mux;
	u8 *map;

	map = is_tx ? sst_ssp_rx_map : sst_ssp_tx_map;

	val = 1 << ctl_no;
	mux = ucontrol->value.enumerated.item[0];
	if (mux > e->max - 1)
		return -EINVAL;

	mutex_lock(&drv->lock);
	/* first clear all registers of this bit */
	for (i = 0; i < e->max; i++)
		map[i] &= ~val;

	if (mux == 0) {
		/* kctl set to 'none' and we reset the bits so send IPC */
		ret = sst_check_and_send_slot_map(drv, kcontrol);

		mutex_unlock(&drv->lock);
		return ret;
	}

	/* offset by one to take "None" into account */
	slot_channel_no = mux - 1;
	map[slot_channel_no] |= val;

	dev_dbg(c->dev, "%s %s map = %#x\n",
			is_tx ? "tx channel" : "rx slot",
			e->texts[mux], map[slot_channel_no]);

	ret = sst_check_and_send_slot_map(drv, kcontrol);

	mutex_unlock(&drv->lock);
	return ret;
}

static int sst_send_algo_cmd(struct sst_data *drv,
			      struct sst_algo_control *bc)
{
	int len, ret = 0;
	struct sst_cmd_set_params *cmd;

	/*bc->max includes sizeof algos + length field*/
	len = sizeof(cmd->dst) + sizeof(cmd->command_id) + bc->max;

	cmd = kzalloc(len, GFP_KERNEL);
	if (cmd == NULL)
		return -ENOMEM;

	SST_FILL_DESTINATION(2, cmd->dst, bc->pipe_id, bc->module_id);
	cmd->command_id = bc->cmd_id;
	memcpy(cmd->params, bc->params, bc->max);

	ret = sst_fill_and_send_cmd_unlocked(drv, SST_IPC_IA_SET_PARAMS,
				SST_FLAG_BLOCKED, bc->task_id, 0, cmd, len);
	kfree(cmd);
	return ret;
}

/**
 * sst_find_and_send_pipe_algo - send all the algo parameters for a pipe
 *
 * The algos which are in each pipeline are sent to the firmware one by one
 *
 * Called with lock held
 */
static int sst_find_and_send_pipe_algo(struct sst_data *drv,
					const char *pipe, struct sst_ids *ids)
{
	int ret = 0;
	struct sst_algo_control *bc;
	struct sst_module *algo = NULL;

	dev_dbg(&drv->pdev->dev, "Enter: widget=%s\n", pipe);

	list_for_each_entry(algo, &ids->algo_list, node) {
		bc = (void *)algo->kctl->private_value;

		dev_dbg(&drv->pdev->dev, "Found algo control name=%s pipe=%s\n",
				algo->kctl->id.name, pipe);
		ret = sst_send_algo_cmd(drv, bc);
		if (ret)
			return ret;
	}
	return ret;
}

static int sst_algo_bytes_ctl_info(struct snd_kcontrol *kcontrol,
			    struct snd_ctl_elem_info *uinfo)
{
	struct sst_algo_control *bc = (void *)kcontrol->private_value;

	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
	uinfo->count = bc->max;

	return 0;
}

static int sst_algo_control_get(struct snd_kcontrol *kcontrol,
				struct snd_ctl_elem_value *ucontrol)
{
	struct sst_algo_control *bc = (void *)kcontrol->private_value;
	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);

	switch (bc->type) {
	case SST_ALGO_PARAMS:
		memcpy(ucontrol->value.bytes.data, bc->params, bc->max);
		break;
	default:
		dev_err(component->dev, "Invalid Input- algo type:%d\n",
				bc->type);
		return -EINVAL;

	}
	return 0;
}

static int sst_algo_control_set(struct snd_kcontrol *kcontrol,
				struct snd_ctl_elem_value *ucontrol)
{
	int ret = 0;
	struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
	struct sst_data *drv = snd_soc_component_get_drvdata(cmpnt);
	struct sst_algo_control *bc = (void *)kcontrol->private_value;

	dev_dbg(cmpnt->dev, "control_name=%s\n", kcontrol->id.name);
	mutex_lock(&drv->lock);
	switch (bc->type) {
	case SST_ALGO_PARAMS:
		memcpy(bc->params, ucontrol->value.bytes.data, bc->max);
		break;
	default:
		mutex_unlock(&drv->lock);
		dev_err(cmpnt->dev, "Invalid Input- algo type:%d\n",
				bc->type);
		return -EINVAL;
	}
	/*if pipe is enabled, need to send the algo params from here*/
	if (bc->w && bc->w->power)
		ret = sst_send_algo_cmd(drv, bc);
	mutex_unlock(&drv->lock);

	return ret;
}

static int sst_gain_ctl_info(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_info *uinfo)
{
	struct sst_gain_mixer_control *mc = (void *)kcontrol->private_value;

	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = mc->stereo ? 2 : 1;
	uinfo->value.integer.min = mc->min;
	uinfo->value.integer.max = mc->max;

	return 0;
}

/**
 * sst_send_gain_cmd - send the gain algorithm IPC to the FW
 * @gv:		the stored value of gain (also contains rampduration)
 * @mute:	flag that indicates whether this was called from the
 *		digital_mute callback or directly. If called from the
 *		digital_mute callback, module will be muted/unmuted based on this
 *		flag. The flag is always 0 if called directly.
 *
 * Called with sst_data.lock held
 *
 * The user-set gain value is sent only if the user-controllable 'mute' control
 * is OFF (indicated by gv->mute). Otherwise, the mute value (MIN value) is
 * sent.
 */
static int sst_send_gain_cmd(struct sst_data *drv, struct sst_gain_value *gv,
			      u16 task_id, u16 loc_id, u16 module_id, int mute)
{
	struct sst_cmd_set_gain_dual cmd;

	dev_dbg(&drv->pdev->dev, "Enter\n");

	cmd.header.command_id = MMX_SET_GAIN;
	SST_FILL_DEFAULT_DESTINATION(cmd.header.dst);
	cmd.gain_cell_num = 1;

	if (mute || gv->mute) {
		cmd.cell_gains[0].cell_gain_left = SST_GAIN_MIN_VALUE;
		cmd.cell_gains[0].cell_gain_right = SST_GAIN_MIN_VALUE;
	} else {
		cmd.cell_gains[0].cell_gain_left = gv->l_gain;
		cmd.cell_gains[0].cell_gain_right = gv->r_gain;
	}

	SST_FILL_DESTINATION(2, cmd.cell_gains[0].dest,
			     loc_id, module_id);
	cmd.cell_gains[0].gain_time_constant = gv->ramp_duration;

	cmd.header.length = sizeof(struct sst_cmd_set_gain_dual)
				- sizeof(struct sst_dsp_header);

	/* we are with lock held, so call the unlocked api  to send */
	return sst_fill_and_send_cmd_unlocked(drv, SST_IPC_IA_SET_PARAMS,
				SST_FLAG_BLOCKED, task_id, 0, &cmd,
			      sizeof(cmd.header) + cmd.header.length);
}

static int sst_gain_get(struct snd_kcontrol *kcontrol,
			struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
	struct sst_gain_mixer_control *mc = (void *)kcontrol->private_value;
	struct sst_gain_value *gv = mc->gain_val;

	switch (mc->type) {
	case SST_GAIN_TLV:
		ucontrol->value.integer.value[0] = gv->l_gain;
		ucontrol->value.integer.value[1] = gv->r_gain;
		break;

	case SST_GAIN_MUTE:
		ucontrol->value.integer.value[0] = gv->mute ? 0 : 1;
		break;

	case SST_GAIN_RAMP_DURATION:
		ucontrol->value.integer.value[0] = gv->ramp_duration;
		break;

	default:
		dev_err(component->dev, "Invalid Input- gain type:%d\n",
				mc->type);
		return -EINVAL;
	}

	return 0;
}

static int sst_gain_put(struct snd_kcontrol *kcontrol,
			struct snd_ctl_elem_value *ucontrol)
{
	int ret = 0;
	struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
	struct sst_data *drv = snd_soc_component_get_drvdata(cmpnt);
	struct sst_gain_mixer_control *mc = (void *)kcontrol->private_value;
	struct sst_gain_value *gv = mc->gain_val;

	mutex_lock(&drv->lock);

	switch (mc->type) {
	case SST_GAIN_TLV:
		gv->l_gain = ucontrol->value.integer.value[0];
		gv->r_gain = ucontrol->value.integer.value[1];
		dev_dbg(cmpnt->dev, "%s: Volume %d, %d\n",
				mc->pname, gv->l_gain, gv->r_gain);
		break;

	case SST_GAIN_MUTE:
		gv->mute = !ucontrol->value.integer.value[0];
		dev_dbg(cmpnt->dev, "%s: Mute %d\n", mc->pname, gv->mute);
		break;

	case SST_GAIN_RAMP_DURATION:
		gv->ramp_duration = ucontrol->value.integer.value[0];
		dev_dbg(cmpnt->dev, "%s: Ramp Delay%d\n",
					mc->pname, gv->ramp_duration);
		break;

	default:
		mutex_unlock(&drv->lock);
		dev_err(cmpnt->dev, "Invalid Input- gain type:%d\n",
				mc->type);
		return -EINVAL;
	}

	if (mc->w && mc->w->power)
		ret = sst_send_gain_cmd(drv, gv, mc->task_id,
			mc->pipe_id | mc->instance_id, mc->module_id, 0);
	mutex_unlock(&drv->lock);

	return ret;
}

static int sst_set_pipe_gain(struct sst_ids *ids,
				struct sst_data *drv, int mute);

static int sst_send_pipe_module_params(struct snd_soc_dapm_widget *w,
		struct snd_kcontrol *kcontrol)
{
	struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
	struct sst_data *drv = snd_soc_component_get_drvdata(c);
	struct sst_ids *ids = w->priv;

	mutex_lock(&drv->lock);
	sst_find_and_send_pipe_algo(drv, w->name, ids);
	sst_set_pipe_gain(ids, drv, 0);
	mutex_unlock(&drv->lock);

	return 0;
}

static int sst_generic_modules_event(struct snd_soc_dapm_widget *w,
				     struct snd_kcontrol *k, int event)
{
	if (SND_SOC_DAPM_EVENT_ON(event))
		return sst_send_pipe_module_params(w, k);
	return 0;
}

static const DECLARE_TLV_DB_SCALE(sst_gain_tlv_common, SST_GAIN_MIN_VALUE * 10, 10, 0);

/* Look up table to convert MIXER SW bit regs to SWM inputs */
static const uint swm_mixer_input_ids[SST_SWM_INPUT_COUNT] = {
	[SST_IP_CODEC0]		= SST_SWM_IN_CODEC0,
	[SST_IP_CODEC1]		= SST_SWM_IN_CODEC1,
	[SST_IP_LOOP0]		= SST_SWM_IN_SPROT_LOOP,
	[SST_IP_LOOP1]		= SST_SWM_IN_MEDIA_LOOP1,
	[SST_IP_LOOP2]		= SST_SWM_IN_MEDIA_LOOP2,
	[SST_IP_PCM0]		= SST_SWM_IN_PCM0,
	[SST_IP_PCM1]		= SST_SWM_IN_PCM1,
	[SST_IP_MEDIA0]		= SST_SWM_IN_MEDIA0,
	[SST_IP_MEDIA1]		= SST_SWM_IN_MEDIA1,
	[SST_IP_MEDIA2]		= SST_SWM_IN_MEDIA2,
	[SST_IP_MEDIA3]		= SST_SWM_IN_MEDIA3,
};

/**
 * fill_swm_input - fill in the SWM input ids given the register
 *
 * The register value is a bit-field inicated which mixer inputs are ON. Use the
 * lookup table to get the input-id and fill it in the structure.
 */
static int fill_swm_input(struct snd_soc_component *cmpnt,
		struct swm_input_ids *swm_input, unsigned int reg)
{
	uint i, is_set, nb_inputs = 0;
	u16 input_loc_id;

	dev_dbg(cmpnt->dev, "reg: %#x\n", reg);
	for (i = 0; i < SST_SWM_INPUT_COUNT; i++) {
		is_set = reg & BIT(i);
		if (!is_set)
			continue;

		input_loc_id = swm_mixer_input_ids[i];
		SST_FILL_DESTINATION(2, swm_input->input_id,
				     input_loc_id, SST_DEFAULT_MODULE_ID);
		nb_inputs++;
		swm_input++;
		dev_dbg(cmpnt->dev, "input id: %#x, nb_inputs: %d\n",
				input_loc_id, nb_inputs);

		if (nb_inputs == SST_CMD_SWM_MAX_INPUTS) {
			dev_warn(cmpnt->dev, "SET_SWM cmd max inputs reached");
			break;
		}
	}
	return nb_inputs;
}


/**
 * called with lock held
 */
static int sst_set_pipe_gain(struct sst_ids *ids,
			struct sst_data *drv, int mute)
{
	int ret = 0;
	struct sst_gain_mixer_control *mc;
	struct sst_gain_value *gv;
	struct sst_module *gain = NULL;

	list_for_each_entry(gain, &ids->gain_list, node) {
		struct snd_kcontrol *kctl = gain->kctl;

		dev_dbg(&drv->pdev->dev, "control name=%s\n", kctl->id.name);
		mc = (void *)kctl->private_value;
		gv = mc->gain_val;

		ret = sst_send_gain_cmd(drv, gv, mc->task_id,
			mc->pipe_id | mc->instance_id, mc->module_id, mute);
		if (ret)
			return ret;
	}
	return ret;
}

static int sst_swm_mixer_event(struct snd_soc_dapm_widget *w,
			struct snd_kcontrol *k, int event)
{
	struct sst_cmd_set_swm cmd;
	struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
	struct sst_data *drv = snd_soc_component_get_drvdata(cmpnt);
	struct sst_ids *ids = w->priv;
	bool set_mixer = false;
	struct soc_mixer_control *mc;
	int val = 0;
	int i = 0;

	dev_dbg(cmpnt->dev, "widget = %s\n", w->name);
	/*
	 * Identify which mixer input is on and send the bitmap of the
	 * inputs as an IPC to the DSP.
	 */
	for (i = 0; i < w->num_kcontrols; i++) {
		if (dapm_kcontrol_get_value(w->kcontrols[i])) {
			mc = (struct soc_mixer_control *)(w->kcontrols[i])->private_value;
			val |= 1 << mc->shift;
		}
	}
	dev_dbg(cmpnt->dev, "val = %#x\n", val);

	switch (event) {
	case SND_SOC_DAPM_PRE_PMU:
	case SND_SOC_DAPM_POST_PMD:
		set_mixer = true;
		break;
	case SND_SOC_DAPM_POST_REG:
		if (w->power)
			set_mixer = true;
		break;
	default:
		set_mixer = false;
	}

	if (set_mixer == false)
		return 0;

	if (SND_SOC_DAPM_EVENT_ON(event) ||
	    event == SND_SOC_DAPM_POST_REG)
		cmd.switch_state = SST_SWM_ON;
	else
		cmd.switch_state = SST_SWM_OFF;

	SST_FILL_DEFAULT_DESTINATION(cmd.header.dst);
	/* MMX_SET_SWM == SBA_SET_SWM */
	cmd.header.command_id = SBA_SET_SWM;

	SST_FILL_DESTINATION(2, cmd.output_id,
			     ids->location_id, SST_DEFAULT_MODULE_ID);
	cmd.nb_inputs =	fill_swm_input(cmpnt, &cmd.input[0], val);
	cmd.header.length = offsetof(struct sst_cmd_set_swm, input)
				- sizeof(struct sst_dsp_header)
				+ (cmd.nb_inputs * sizeof(cmd.input[0]));

	return sst_fill_and_send_cmd(drv, SST_IPC_IA_CMD, SST_FLAG_BLOCKED,
			      ids->task_id, 0, &cmd,
			      sizeof(cmd.header) + cmd.header.length);
}

/* SBA mixers - 16 inputs */
#define SST_SBA_DECLARE_MIX_CONTROLS(kctl_name)							\
	static const struct snd_kcontrol_new kctl_name[] = {					\
		SOC_DAPM_SINGLE("codec_in0 Switch", SND_SOC_NOPM, SST_IP_CODEC0, 1, 0),		\
		SOC_DAPM_SINGLE("codec_in1 Switch", SND_SOC_NOPM, SST_IP_CODEC1, 1, 0),		\
		SOC_DAPM_SINGLE("sprot_loop_in Switch", SND_SOC_NOPM, SST_IP_LOOP0, 1, 0),	\
		SOC_DAPM_SINGLE("media_loop1_in Switch", SND_SOC_NOPM, SST_IP_LOOP1, 1, 0),	\
		SOC_DAPM_SINGLE("media_loop2_in Switch", SND_SOC_NOPM, SST_IP_LOOP2, 1, 0),	\
		SOC_DAPM_SINGLE("pcm0_in Switch", SND_SOC_NOPM, SST_IP_PCM0, 1, 0),		\
		SOC_DAPM_SINGLE("pcm1_in Switch", SND_SOC_NOPM, SST_IP_PCM1, 1, 0),		\
	}

#define SST_SBA_MIXER_GRAPH_MAP(mix_name)			\
	{ mix_name, "codec_in0 Switch",	"codec_in0" },		\
	{ mix_name, "codec_in1 Switch",	"codec_in1" },		\
	{ mix_name, "sprot_loop_in Switch",	"sprot_loop_in" },	\
	{ mix_name, "media_loop1_in Switch",	"media_loop1_in" },	\
	{ mix_name, "media_loop2_in Switch",	"media_loop2_in" },	\
	{ mix_name, "pcm0_in Switch",		"pcm0_in" },		\
	{ mix_name, "pcm1_in Switch",		"pcm1_in" }

#define SST_MMX_DECLARE_MIX_CONTROLS(kctl_name)						\
	static const struct snd_kcontrol_new kctl_name[] = {				\
		SOC_DAPM_SINGLE("media0_in Switch", SND_SOC_NOPM, SST_IP_MEDIA0, 1, 0),	\
		SOC_DAPM_SINGLE("media1_in Switch", SND_SOC_NOPM, SST_IP_MEDIA1, 1, 0),	\
		SOC_DAPM_SINGLE("media2_in Switch", SND_SOC_NOPM, SST_IP_MEDIA2, 1, 0),	\
		SOC_DAPM_SINGLE("media3_in Switch", SND_SOC_NOPM, SST_IP_MEDIA3, 1, 0),	\
	}

SST_MMX_DECLARE_MIX_CONTROLS(sst_mix_media0_controls);
SST_MMX_DECLARE_MIX_CONTROLS(sst_mix_media1_controls);

/* 18 SBA mixers */
SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_pcm0_controls);
SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_pcm1_controls);
SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_pcm2_controls);
SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_sprot_l0_controls);
SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_media_l1_controls);
SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_media_l2_controls);
SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_voip_controls);
SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_codec0_controls);
SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_codec1_controls);

/*
 * sst_handle_vb_timer - Start/Stop the DSP scheduler
 *
 * The DSP expects first cmd to be SBA_VB_START, so at first startup send
 * that.
 * DSP expects last cmd to be SBA_VB_IDLE, so at last shutdown send that.
 *
 * Do refcount internally so that we send command only at first start
 * and last end. Since SST driver does its own ref count, invoke sst's
 * power ops always!
 */
int sst_handle_vb_timer(struct snd_soc_dai *dai, bool enable)
{
	int ret = 0;
	struct sst_cmd_generic cmd;
	struct sst_data *drv = snd_soc_dai_get_drvdata(dai);
	static int timer_usage;

	if (enable)
		cmd.header.command_id = SBA_VB_START;
	else
		cmd.header.command_id = SBA_IDLE;
	dev_dbg(dai->dev, "enable=%u, usage=%d\n", enable, timer_usage);

	SST_FILL_DEFAULT_DESTINATION(cmd.header.dst);
	cmd.header.length = 0;

	if (enable) {
		ret = sst->ops->power(sst->dev, true);
		if (ret < 0)
			return ret;
	}

	mutex_lock(&drv->lock);
	if (enable)
		timer_usage++;
	else
		timer_usage--;

	/*
	 * Send the command only if this call is the first enable or last
	 * disable
	 */
	if ((enable && (timer_usage == 1)) ||
	    (!enable && (timer_usage == 0))) {
		ret = sst_fill_and_send_cmd_unlocked(drv, SST_IPC_IA_CMD,
				SST_FLAG_BLOCKED, SST_TASK_SBA, 0, &cmd,
				sizeof(cmd.header) + cmd.header.length);
		if (ret && enable) {
			timer_usage--;
			enable  = false;
		}
	}
	mutex_unlock(&drv->lock);

	if (!enable)
		sst->ops->power(sst->dev, false);
	return ret;
}

int sst_fill_ssp_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
		unsigned int rx_mask, int slots, int slot_width)
{
	struct sst_data *ctx = snd_soc_dai_get_drvdata(dai);

	ctx->ssp_cmd.nb_slots = slots;
	ctx->ssp_cmd.active_tx_slot_map = tx_mask;
	ctx->ssp_cmd.active_rx_slot_map = rx_mask;
	ctx->ssp_cmd.nb_bits_per_slots = slot_width;

	return 0;
}

static int sst_get_frame_sync_polarity(struct snd_soc_dai *dai,
		unsigned int fmt)
{
	int format;

	format = fmt & SND_SOC_DAIFMT_INV_MASK;
	dev_dbg(dai->dev, "Enter:%s, format=%x\n", __func__, format);

	switch (format) {
	case SND_SOC_DAIFMT_NB_NF:
		return SSP_FS_ACTIVE_LOW;
	case SND_SOC_DAIFMT_NB_IF:
		return SSP_FS_ACTIVE_HIGH;
	case SND_SOC_DAIFMT_IB_IF:
		return SSP_FS_ACTIVE_LOW;
	case SND_SOC_DAIFMT_IB_NF:
		return SSP_FS_ACTIVE_HIGH;
	default:
		dev_err(dai->dev, "Invalid frame sync polarity %d\n", format);
	}

	return -EINVAL;
}

static int sst_get_ssp_mode(struct snd_soc_dai *dai, unsigned int fmt)
{
	int format;

	format = (fmt & SND_SOC_DAIFMT_MASTER_MASK);
	dev_dbg(dai->dev, "Enter:%s, format=%x\n", __func__, format);

	switch (format) {
	case SND_SOC_DAIFMT_CBS_CFS:
		return SSP_MODE_MASTER;
	case SND_SOC_DAIFMT_CBM_CFM:
		return SSP_MODE_SLAVE;
	default:
		dev_err(dai->dev, "Invalid ssp protocol: %d\n", format);
	}

	return -EINVAL;
}


int sst_fill_ssp_config(struct snd_soc_dai *dai, unsigned int fmt)
{
	unsigned int mode;
	int fs_polarity;
	struct sst_data *ctx = snd_soc_dai_get_drvdata(dai);

	mode = fmt & SND_SOC_DAIFMT_FORMAT_MASK;

	switch (mode) {
	case SND_SOC_DAIFMT_DSP_B:
		ctx->ssp_cmd.ssp_protocol = SSP_MODE_PCM;
		ctx->ssp_cmd.mode = sst_get_ssp_mode(dai, fmt) | (SSP_PCM_MODE_NETWORK << 1);
		ctx->ssp_cmd.start_delay = 0;
		ctx->ssp_cmd.data_polarity = 1;
		ctx->ssp_cmd.frame_sync_width = 1;
		break;

	case SND_SOC_DAIFMT_DSP_A:
		ctx->ssp_cmd.ssp_protocol = SSP_MODE_PCM;
		ctx->ssp_cmd.mode = sst_get_ssp_mode(dai, fmt) | (SSP_PCM_MODE_NETWORK << 1);
		ctx->ssp_cmd.start_delay = 1;
		ctx->ssp_cmd.data_polarity = 1;
		ctx->ssp_cmd.frame_sync_width = 1;
		break;

	case SND_SOC_DAIFMT_I2S:
		ctx->ssp_cmd.ssp_protocol = SSP_MODE_I2S;
		ctx->ssp_cmd.mode = sst_get_ssp_mode(dai, fmt) | (SSP_PCM_MODE_NORMAL << 1);
		ctx->ssp_cmd.start_delay = 1;
		ctx->ssp_cmd.data_polarity = 0;
		ctx->ssp_cmd.frame_sync_width = ctx->ssp_cmd.nb_bits_per_slots;
		break;

	case SND_SOC_DAIFMT_LEFT_J:
		ctx->ssp_cmd.ssp_protocol = SSP_MODE_I2S;
		ctx->ssp_cmd.mode = sst_get_ssp_mode(dai, fmt) | (SSP_PCM_MODE_NORMAL << 1);
		ctx->ssp_cmd.start_delay = 0;
		ctx->ssp_cmd.data_polarity = 0;
		ctx->ssp_cmd.frame_sync_width = ctx->ssp_cmd.nb_bits_per_slots;
		break;

	default:
		dev_dbg(dai->dev, "using default ssp configs\n");
	}

	fs_polarity = sst_get_frame_sync_polarity(dai, fmt);
	if (fs_polarity < 0)
		return fs_polarity;

	ctx->ssp_cmd.frame_sync_polarity = fs_polarity;

	return 0;
}

/**
 * sst_ssp_config - contains SSP configuration for media UC
 * this can be overwritten by set_dai_xxx APIs
 */
static const struct sst_ssp_config sst_ssp_configs = {
	.ssp_id = SSP_CODEC,
	.bits_per_slot = 24,
	.slots = 4,
	.ssp_mode = SSP_MODE_MASTER,
	.pcm_mode = SSP_PCM_MODE_NETWORK,
	.duplex = SSP_DUPLEX,
	.ssp_protocol = SSP_MODE_PCM,
	.fs_width = 1,
	.fs_frequency = SSP_FS_48_KHZ,
	.active_slot_map = 0xF,
	.start_delay = 0,
	.frame_sync_polarity = SSP_FS_ACTIVE_HIGH,
	.data_polarity = 1,
};

void sst_fill_ssp_defaults(struct snd_soc_dai *dai)
{
	const struct sst_ssp_config *config;
	struct sst_data *ctx = snd_soc_dai_get_drvdata(dai);

	config = &sst_ssp_configs;

	ctx->ssp_cmd.selection = config->ssp_id;
	ctx->ssp_cmd.nb_bits_per_slots = config->bits_per_slot;
	ctx->ssp_cmd.nb_slots = config->slots;
	ctx->ssp_cmd.mode = config->ssp_mode | (config->pcm_mode << 1);
	ctx->ssp_cmd.duplex = config->duplex;
	ctx->ssp_cmd.active_tx_slot_map = config->active_slot_map;
	ctx->ssp_cmd.active_rx_slot_map = config->active_slot_map;
	ctx->ssp_cmd.frame_sync_frequency = config->fs_frequency;
	ctx->ssp_cmd.frame_sync_polarity = config->frame_sync_polarity;
	ctx->ssp_cmd.data_polarity = config->data_polarity;
	ctx->ssp_cmd.frame_sync_width = config->fs_width;
	ctx->ssp_cmd.ssp_protocol = config->ssp_protocol;
	ctx->ssp_cmd.start_delay = config->start_delay;
	ctx->ssp_cmd.reserved1 = ctx->ssp_cmd.reserved2 = 0xFF;
}

int send_ssp_cmd(struct snd_soc_dai *dai, const char *id, bool enable)
{
	struct sst_data *drv = snd_soc_dai_get_drvdata(dai);
	const struct sst_ssp_config *config;

	dev_info(dai->dev, "Enter: enable=%d port_name=%s\n", enable, id);

	SST_FILL_DEFAULT_DESTINATION(drv->ssp_cmd.header.dst);
	drv->ssp_cmd.header.command_id = SBA_HW_SET_SSP;
	drv->ssp_cmd.header.length = sizeof(struct sst_cmd_sba_hw_set_ssp)
				- sizeof(struct sst_dsp_header);

	config = &sst_ssp_configs;
	dev_dbg(dai->dev, "ssp_id: %u\n", config->ssp_id);

	if (enable)
		drv->ssp_cmd.switch_state = SST_SWITCH_ON;
	else
		drv->ssp_cmd.switch_state = SST_SWITCH_OFF;

	return sst_fill_and_send_cmd(drv, SST_IPC_IA_CMD, SST_FLAG_BLOCKED,
				SST_TASK_SBA, 0, &drv->ssp_cmd,
				sizeof(drv->ssp_cmd.header) + drv->ssp_cmd.header.length);
}

static int sst_set_be_modules(struct snd_soc_dapm_widget *w,
			 struct snd_kcontrol *k, int event)
{
	int ret = 0;
	struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
	struct sst_data *drv = snd_soc_component_get_drvdata(c);

	dev_dbg(c->dev, "Enter: widget=%s\n", w->name);

	if (SND_SOC_DAPM_EVENT_ON(event)) {
		ret = sst_send_slot_map(drv);
		if (ret)
			return ret;
		ret = sst_send_pipe_module_params(w, k);
	}
	return ret;
}

static int sst_set_media_path(struct snd_soc_dapm_widget *w,
			      struct snd_kcontrol *k, int event)
{
	int ret = 0;
	struct sst_cmd_set_media_path cmd;
	struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
	struct sst_data *drv = snd_soc_component_get_drvdata(c);
	struct sst_ids *ids = w->priv;

	dev_dbg(c->dev, "widget=%s\n", w->name);
	dev_dbg(c->dev, "task=%u, location=%#x\n",
				ids->task_id, ids->location_id);

	if (SND_SOC_DAPM_EVENT_ON(event))
		cmd.switch_state = SST_PATH_ON;
	else
		cmd.switch_state = SST_PATH_OFF;

	SST_FILL_DESTINATION(2, cmd.header.dst,
			     ids->location_id, SST_DEFAULT_MODULE_ID);

	/* MMX_SET_MEDIA_PATH == SBA_SET_MEDIA_PATH */
	cmd.header.command_id = MMX_SET_MEDIA_PATH;
	cmd.header.length = sizeof(struct sst_cmd_set_media_path)
				- sizeof(struct sst_dsp_header);

	ret = sst_fill_and_send_cmd(drv, SST_IPC_IA_CMD, SST_FLAG_BLOCKED,
			      ids->task_id, 0, &cmd,
			      sizeof(cmd.header) + cmd.header.length);
	if (ret)
		return ret;

	if (SND_SOC_DAPM_EVENT_ON(event))
		ret = sst_send_pipe_module_params(w, k);
	return ret;
}

static int sst_set_media_loop(struct snd_soc_dapm_widget *w,
			struct snd_kcontrol *k, int event)
{
	int ret = 0;
	struct sst_cmd_sba_set_media_loop_map cmd;
	struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
	struct sst_data *drv = snd_soc_component_get_drvdata(c);
	struct sst_ids *ids = w->priv;

	dev_dbg(c->dev, "Enter:widget=%s\n", w->name);
	if (SND_SOC_DAPM_EVENT_ON(event))
		cmd.switch_state = SST_SWITCH_ON;
	else
		cmd.switch_state = SST_SWITCH_OFF;

	SST_FILL_DESTINATION(2, cmd.header.dst,
			     ids->location_id, SST_DEFAULT_MODULE_ID);

	cmd.header.command_id = SBA_SET_MEDIA_LOOP_MAP;
	cmd.header.length = sizeof(struct sst_cmd_sba_set_media_loop_map)
				 - sizeof(struct sst_dsp_header);
	cmd.param.part.cfg.rate = 2; /* 48khz */

	cmd.param.part.cfg.format = ids->format; /* stereo/Mono */
	cmd.param.part.cfg.s_length = 1; /* 24bit left justified */
	cmd.map = 0; /* Algo sequence: Gain - DRP - FIR - IIR */

	ret = sst_fill_and_send_cmd(drv, SST_IPC_IA_CMD, SST_FLAG_BLOCKED,
			      SST_TASK_SBA, 0, &cmd,
			      sizeof(cmd.header) + cmd.header.length);
	if (ret)
		return ret;

	if (SND_SOC_DAPM_EVENT_ON(event))
		ret = sst_send_pipe_module_params(w, k);
	return ret;
}

static const struct snd_soc_dapm_widget sst_dapm_widgets[] = {
	SST_AIF_IN("codec_in0", sst_set_be_modules),
	SST_AIF_IN("codec_in1", sst_set_be_modules),
	SST_AIF_OUT("codec_out0", sst_set_be_modules),
	SST_AIF_OUT("codec_out1", sst_set_be_modules),

	/* Media Paths */
	/* MediaX IN paths are set via ALLOC, so no SET_MEDIA_PATH command */
	SST_PATH_INPUT("media0_in", SST_TASK_MMX, SST_SWM_IN_MEDIA0, sst_generic_modules_event),
	SST_PATH_INPUT("media1_in", SST_TASK_MMX, SST_SWM_IN_MEDIA1, NULL),
	SST_PATH_INPUT("media2_in", SST_TASK_MMX, SST_SWM_IN_MEDIA2, sst_set_media_path),
	SST_PATH_INPUT("media3_in", SST_TASK_MMX, SST_SWM_IN_MEDIA3, NULL),
	SST_PATH_OUTPUT("media0_out", SST_TASK_MMX, SST_SWM_OUT_MEDIA0, sst_set_media_path),
	SST_PATH_OUTPUT("media1_out", SST_TASK_MMX, SST_SWM_OUT_MEDIA1, sst_set_media_path),

	/* SBA PCM Paths */
	SST_PATH_INPUT("pcm0_in", SST_TASK_SBA, SST_SWM_IN_PCM0, sst_set_media_path),
	SST_PATH_INPUT("pcm1_in", SST_TASK_SBA, SST_SWM_IN_PCM1, sst_set_media_path),
	SST_PATH_OUTPUT("pcm0_out", SST_TASK_SBA, SST_SWM_OUT_PCM0, sst_set_media_path),
	SST_PATH_OUTPUT("pcm1_out", SST_TASK_SBA, SST_SWM_OUT_PCM1, sst_set_media_path),
	SST_PATH_OUTPUT("pcm2_out", SST_TASK_SBA, SST_SWM_OUT_PCM2, sst_set_media_path),

	/* SBA Loops */
	SST_PATH_INPUT("sprot_loop_in", SST_TASK_SBA, SST_SWM_IN_SPROT_LOOP, NULL),
	SST_PATH_INPUT("media_loop1_in", SST_TASK_SBA, SST_SWM_IN_MEDIA_LOOP1, NULL),
	SST_PATH_INPUT("media_loop2_in", SST_TASK_SBA, SST_SWM_IN_MEDIA_LOOP2, NULL),
	SST_PATH_MEDIA_LOOP_OUTPUT("sprot_loop_out", SST_TASK_SBA, SST_SWM_OUT_SPROT_LOOP, SST_FMT_MONO, sst_set_media_loop),
	SST_PATH_MEDIA_LOOP_OUTPUT("media_loop1_out", SST_TASK_SBA, SST_SWM_OUT_MEDIA_LOOP1, SST_FMT_MONO, sst_set_media_loop),
	SST_PATH_MEDIA_LOOP_OUTPUT("media_loop2_out", SST_TASK_SBA, SST_SWM_OUT_MEDIA_LOOP2, SST_FMT_STEREO, sst_set_media_loop),

	/* Media Mixers */
	SST_SWM_MIXER("media0_out mix 0", SND_SOC_NOPM, SST_TASK_MMX, SST_SWM_OUT_MEDIA0,
		      sst_mix_media0_controls, sst_swm_mixer_event),
	SST_SWM_MIXER("media1_out mix 0", SND_SOC_NOPM, SST_TASK_MMX, SST_SWM_OUT_MEDIA1,
		      sst_mix_media1_controls, sst_swm_mixer_event),

	/* SBA PCM mixers */
	SST_SWM_MIXER("pcm0_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_PCM0,
		      sst_mix_pcm0_controls, sst_swm_mixer_event),
	SST_SWM_MIXER("pcm1_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_PCM1,
		      sst_mix_pcm1_controls, sst_swm_mixer_event),
	SST_SWM_MIXER("pcm2_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_PCM2,
		      sst_mix_pcm2_controls, sst_swm_mixer_event),

	/* SBA Loop mixers */
	SST_SWM_MIXER("sprot_loop_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_SPROT_LOOP,
		      sst_mix_sprot_l0_controls, sst_swm_mixer_event),
	SST_SWM_MIXER("media_loop1_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_MEDIA_LOOP1,
		      sst_mix_media_l1_controls, sst_swm_mixer_event),
	SST_SWM_MIXER("media_loop2_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_MEDIA_LOOP2,
		      sst_mix_media_l2_controls, sst_swm_mixer_event),

	/* SBA Backend mixers */
	SST_SWM_MIXER("codec_out0 mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_CODEC0,
		      sst_mix_codec0_controls, sst_swm_mixer_event),
	SST_SWM_MIXER("codec_out1 mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_CODEC1,
		      sst_mix_codec1_controls, sst_swm_mixer_event),
};

static const struct snd_soc_dapm_route intercon[] = {
	{"media0_in", NULL, "Compress Playback"},
	{"media1_in", NULL, "Headset Playback"},
	{"media2_in", NULL, "pcm0_out"},
	{"media3_in", NULL, "Deepbuffer Playback"},

	{"media0_out mix 0", "media0_in Switch", "media0_in"},
	{"media0_out mix 0", "media1_in Switch", "media1_in"},
	{"media0_out mix 0", "media2_in Switch", "media2_in"},
	{"media0_out mix 0", "media3_in Switch", "media3_in"},
	{"media1_out mix 0", "media0_in Switch", "media0_in"},
	{"media1_out mix 0", "media1_in Switch", "media1_in"},
	{"media1_out mix 0", "media2_in Switch", "media2_in"},
	{"media1_out mix 0", "media3_in Switch", "media3_in"},

	{"media0_out", NULL, "media0_out mix 0"},
	{"media1_out", NULL, "media1_out mix 0"},
	{"pcm0_in", NULL, "media0_out"},
	{"pcm1_in", NULL, "media1_out"},

	{"Headset Capture", NULL, "pcm1_out"},
	{"Headset Capture", NULL, "pcm2_out"},
	{"pcm0_out", NULL, "pcm0_out mix 0"},
	SST_SBA_MIXER_GRAPH_MAP("pcm0_out mix 0"),
	{"pcm1_out", NULL, "pcm1_out mix 0"},
	SST_SBA_MIXER_GRAPH_MAP("pcm1_out mix 0"),
	{"pcm2_out", NULL, "pcm2_out mix 0"},
	SST_SBA_MIXER_GRAPH_MAP("pcm2_out mix 0"),

	{"media_loop1_in", NULL, "media_loop1_out"},
	{"media_loop1_out", NULL, "media_loop1_out mix 0"},
	SST_SBA_MIXER_GRAPH_MAP("media_loop1_out mix 0"),
	{"media_loop2_in", NULL, "media_loop2_out"},
	{"media_loop2_out", NULL, "media_loop2_out mix 0"},
	SST_SBA_MIXER_GRAPH_MAP("media_loop2_out mix 0"),
	{"sprot_loop_in", NULL, "sprot_loop_out"},
	{"sprot_loop_out", NULL, "sprot_loop_out mix 0"},
	SST_SBA_MIXER_GRAPH_MAP("sprot_loop_out mix 0"),

	{"codec_out0", NULL, "codec_out0 mix 0"},
	SST_SBA_MIXER_GRAPH_MAP("codec_out0 mix 0"),
	{"codec_out1", NULL, "codec_out1 mix 0"},
	SST_SBA_MIXER_GRAPH_MAP("codec_out1 mix 0"),

};
static const char * const slot_names[] = {
	"none",
	"slot 0", "slot 1", "slot 2", "slot 3",
	"slot 4", "slot 5", "slot 6", "slot 7", /* not supported by FW */
};

static const char * const channel_names[] = {
	"none",
	"codec_out0_0", "codec_out0_1", "codec_out1_0", "codec_out1_1",
	"codec_out2_0", "codec_out2_1", "codec_out3_0", "codec_out3_1", /* not supported by FW */
};

#define SST_INTERLEAVER(xpname, slot_name, slotno) \
	SST_SSP_SLOT_CTL(xpname, "tx interleaver", slot_name, slotno, true, \
			 channel_names, sst_slot_get, sst_slot_put)

#define SST_DEINTERLEAVER(xpname, channel_name, channel_no) \
	SST_SSP_SLOT_CTL(xpname, "rx deinterleaver", channel_name, channel_no, false, \
			 slot_names, sst_slot_get, sst_slot_put)

static const struct snd_kcontrol_new sst_slot_controls[] = {
	SST_INTERLEAVER("codec_out", "slot 0", 0),
	SST_INTERLEAVER("codec_out", "slot 1", 1),
	SST_INTERLEAVER("codec_out", "slot 2", 2),
	SST_INTERLEAVER("codec_out", "slot 3", 3),
	SST_DEINTERLEAVER("codec_in", "codec_in0_0", 0),
	SST_DEINTERLEAVER("codec_in", "codec_in0_1", 1),
	SST_DEINTERLEAVER("codec_in", "codec_in1_0", 2),
	SST_DEINTERLEAVER("codec_in", "codec_in1_1", 3),
};

/* Gain helper with min/max set */
#define SST_GAIN(name, path_id, task_id, instance, gain_var)				\
	SST_GAIN_KCONTROLS(name, "Gain", SST_GAIN_MIN_VALUE, SST_GAIN_MAX_VALUE,	\
		SST_GAIN_TC_MIN, SST_GAIN_TC_MAX,					\
		sst_gain_get, sst_gain_put,						\
		SST_MODULE_ID_GAIN_CELL, path_id, instance, task_id,			\
		sst_gain_tlv_common, gain_var)

#define SST_VOLUME(name, path_id, task_id, instance, gain_var)				\
	SST_GAIN_KCONTROLS(name, "Volume", SST_GAIN_MIN_VALUE, SST_GAIN_MAX_VALUE,	\
		SST_GAIN_TC_MIN, SST_GAIN_TC_MAX,					\
		sst_gain_get, sst_gain_put,						\
		SST_MODULE_ID_VOLUME, path_id, instance, task_id,			\
		sst_gain_tlv_common, gain_var)

static struct sst_gain_value sst_gains[];

static const struct snd_kcontrol_new sst_gain_controls[] = {
	SST_GAIN("media0_in", SST_PATH_INDEX_MEDIA0_IN, SST_TASK_MMX, 0, &sst_gains[0]),
	SST_GAIN("media1_in", SST_PATH_INDEX_MEDIA1_IN, SST_TASK_MMX, 0, &sst_gains[1]),
	SST_GAIN("media2_in", SST_PATH_INDEX_MEDIA2_IN, SST_TASK_MMX, 0, &sst_gains[2]),
	SST_GAIN("media3_in", SST_PATH_INDEX_MEDIA3_IN, SST_TASK_MMX, 0, &sst_gains[3]),

	SST_GAIN("pcm0_in", SST_PATH_INDEX_PCM0_IN, SST_TASK_SBA, 0, &sst_gains[4]),
	SST_GAIN("pcm1_in", SST_PATH_INDEX_PCM1_IN, SST_TASK_SBA, 0, &sst_gains[5]),
	SST_GAIN("pcm1_out", SST_PATH_INDEX_PCM1_OUT, SST_TASK_SBA, 0, &sst_gains[6]),
	SST_GAIN("pcm2_out", SST_PATH_INDEX_PCM2_OUT, SST_TASK_SBA, 0, &sst_gains[7]),

	SST_GAIN("codec_in0", SST_PATH_INDEX_CODEC_IN0, SST_TASK_SBA, 0, &sst_gains[8]),
	SST_GAIN("codec_in1", SST_PATH_INDEX_CODEC_IN1, SST_TASK_SBA, 0, &sst_gains[9]),
	SST_GAIN("codec_out0", SST_PATH_INDEX_CODEC_OUT0, SST_TASK_SBA, 0, &sst_gains[10]),
	SST_GAIN("codec_out1", SST_PATH_INDEX_CODEC_OUT1, SST_TASK_SBA, 0, &sst_gains[11]),
	SST_GAIN("media_loop1_out", SST_PATH_INDEX_MEDIA_LOOP1_OUT, SST_TASK_SBA, 0, &sst_gains[12]),
	SST_GAIN("media_loop2_out", SST_PATH_INDEX_MEDIA_LOOP2_OUT, SST_TASK_SBA, 0, &sst_gains[13]),
	SST_GAIN("sprot_loop_out", SST_PATH_INDEX_SPROT_LOOP_OUT, SST_TASK_SBA, 0, &sst_gains[14]),
	SST_VOLUME("media0_in", SST_PATH_INDEX_MEDIA0_IN, SST_TASK_MMX, 0, &sst_gains[15]),
};

#define SST_GAIN_NUM_CONTROLS 3
/* the SST_GAIN macro above will create three alsa controls for each
 * instance invoked, gain, mute and ramp duration, which use the same gain
 * cell sst_gain to keep track of data
 * To calculate number of gain cell instances we need to device by 3 in
 * below caulcation for gain cell memory.
 * This gets rid of static number and issues while adding new controls
 */
static struct sst_gain_value sst_gains[ARRAY_SIZE(sst_gain_controls)/SST_GAIN_NUM_CONTROLS];

static const struct snd_kcontrol_new sst_algo_controls[] = {
	SST_ALGO_KCONTROL_BYTES("media_loop1_out", "fir", 272, SST_MODULE_ID_FIR_24,
		 SST_PATH_INDEX_MEDIA_LOOP1_OUT, 0, SST_TASK_SBA, SBA_VB_SET_FIR),
	SST_ALGO_KCONTROL_BYTES("media_loop1_out", "iir", 300, SST_MODULE_ID_IIR_24,
		SST_PATH_INDEX_MEDIA_LOOP1_OUT, 0, SST_TASK_SBA, SBA_VB_SET_IIR),
	SST_ALGO_KCONTROL_BYTES("media_loop1_out", "mdrp", 286, SST_MODULE_ID_MDRP,
		SST_PATH_INDEX_MEDIA_LOOP1_OUT, 0, SST_TASK_SBA, SBA_SET_MDRP),
	SST_ALGO_KCONTROL_BYTES("media_loop2_out", "fir", 272, SST_MODULE_ID_FIR_24,
		SST_PATH_INDEX_MEDIA_LOOP2_OUT, 0, SST_TASK_SBA, SBA_VB_SET_FIR),
	SST_ALGO_KCONTROL_BYTES("media_loop2_out", "iir", 300, SST_MODULE_ID_IIR_24,
		SST_PATH_INDEX_MEDIA_LOOP2_OUT, 0, SST_TASK_SBA, SBA_VB_SET_IIR),
	SST_ALGO_KCONTROL_BYTES("media_loop2_out", "mdrp", 286, SST_MODULE_ID_MDRP,
		SST_PATH_INDEX_MEDIA_LOOP2_OUT, 0, SST_TASK_SBA, SBA_SET_MDRP),
	SST_ALGO_KCONTROL_BYTES("sprot_loop_out", "lpro", 192, SST_MODULE_ID_SPROT,
		SST_PATH_INDEX_SPROT_LOOP_OUT, 0, SST_TASK_SBA, SBA_VB_LPRO),
	SST_ALGO_KCONTROL_BYTES("codec_in0", "dcr", 52, SST_MODULE_ID_FILT_DCR,
		SST_PATH_INDEX_CODEC_IN0, 0, SST_TASK_SBA, SBA_VB_SET_IIR),
	SST_ALGO_KCONTROL_BYTES("codec_in1", "dcr", 52, SST_MODULE_ID_FILT_DCR,
		SST_PATH_INDEX_CODEC_IN1, 0, SST_TASK_SBA, SBA_VB_SET_IIR),

};

static int sst_algo_control_init(struct device *dev)
{
	int i = 0;
	struct sst_algo_control *bc;
	/*allocate space to cache the algo parameters in the driver*/
	for (i = 0; i < ARRAY_SIZE(sst_algo_controls); i++) {
		bc = (struct sst_algo_control *)sst_algo_controls[i].private_value;
		bc->params = devm_kzalloc(dev, bc->max, GFP_KERNEL);
		if (bc->params == NULL)
			return -ENOMEM;
	}
	return 0;
}

static bool is_sst_dapm_widget(struct snd_soc_dapm_widget *w)
{
	switch (w->id) {
	case snd_soc_dapm_pga:
	case snd_soc_dapm_aif_in:
	case snd_soc_dapm_aif_out:
	case snd_soc_dapm_input:
	case snd_soc_dapm_output:
	case snd_soc_dapm_mixer:
		return true;
	default:
		return false;
	}
}

/**
 * sst_send_pipe_gains - send gains for the front-end DAIs
 *
 * The gains in the pipes connected to the front-ends are muted/unmuted
 * automatically via the digital_mute() DAPM callback. This function sends the
 * gains for the front-end pipes.
 */
int sst_send_pipe_gains(struct snd_soc_dai *dai, int stream, int mute)
{
	struct sst_data *drv = snd_soc_dai_get_drvdata(dai);
	struct snd_soc_dapm_widget *w;
	struct snd_soc_dapm_path *p = NULL;

	dev_dbg(dai->dev, "enter, dai-name=%s dir=%d\n", dai->name, stream);

	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
		dev_dbg(dai->dev, "Stream name=%s\n",
				dai->playback_widget->name);
		w = dai->playback_widget;
		snd_soc_dapm_widget_for_each_sink_path(w, p) {
			if (p->connected && !p->connected(w, p->sink))
				continue;

			if (p->connect && p->sink->power &&
					is_sst_dapm_widget(p->sink)) {
				struct sst_ids *ids = p->sink->priv;

				dev_dbg(dai->dev, "send gains for widget=%s\n",
						p->sink->name);
				mutex_lock(&drv->lock);
				sst_set_pipe_gain(ids, drv, mute);
				mutex_unlock(&drv->lock);
			}
		}
	} else {
		dev_dbg(dai->dev, "Stream name=%s\n",
				dai->capture_widget->name);
		w = dai->capture_widget;
		snd_soc_dapm_widget_for_each_source_path(w, p) {
			if (p->connected && !p->connected(w, p->sink))
				continue;

			if (p->connect &&  p->source->power &&
					is_sst_dapm_widget(p->source)) {
				struct sst_ids *ids = p->source->priv;

				dev_dbg(dai->dev, "send gain for widget=%s\n",
						p->source->name);
				mutex_lock(&drv->lock);
				sst_set_pipe_gain(ids, drv, mute);
				mutex_unlock(&drv->lock);
			}
		}
	}
	return 0;
}

/**
 * sst_fill_module_list - populate the list of modules/gains for a pipe
 *
 *
 * Fills the widget pointer in the kcontrol private data, and also fills the
 * kcontrol pointer in the widget private data.
 *
 * Widget pointer is used to send the algo/gain in the .put() handler if the
 * widget is powerd on.
 *
 * Kcontrol pointer is used to send the algo/gain in the widget power ON/OFF
 * event handler. Each widget (pipe) has multiple algos stored in the algo_list.
 */
static int sst_fill_module_list(struct snd_kcontrol *kctl,
	 struct snd_soc_dapm_widget *w, int type)
{
	struct sst_module *module = NULL;
	struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
	struct sst_ids *ids = w->priv;
	int ret = 0;

	module = devm_kzalloc(c->dev, sizeof(*module), GFP_KERNEL);
	if (!module)
		return -ENOMEM;

	if (type == SST_MODULE_GAIN) {
		struct sst_gain_mixer_control *mc = (void *)kctl->private_value;

		mc->w = w;
		module->kctl = kctl;
		list_add_tail(&module->node, &ids->gain_list);
	} else if (type == SST_MODULE_ALGO) {
		struct sst_algo_control *bc = (void *)kctl->private_value;

		bc->w = w;
		module->kctl = kctl;
		list_add_tail(&module->node, &ids->algo_list);
	} else {
		dev_err(c->dev, "invoked for unknown type %d module %s",
				type, kctl->id.name);
		ret = -EINVAL;
	}

	return ret;
}

/**
 * sst_fill_widget_module_info - fill list of gains/algos for the pipe
 * @widget:	pipe modelled as a DAPM widget
 *
 * Fill the list of gains/algos for the widget by looking at all the card
 * controls and comparing the name of the widget with the first part of control
 * name. First part of control name contains the pipe name (widget name).
 */
static int sst_fill_widget_module_info(struct snd_soc_dapm_widget *w,
	struct snd_soc_platform *platform)
{
	struct snd_kcontrol *kctl;
	int index, ret = 0;
	struct snd_card *card = platform->component.card->snd_card;
	char *idx;

	down_read(&card->controls_rwsem);

	list_for_each_entry(kctl, &card->controls, list) {
		idx = strchr(kctl->id.name, ' ');
		if (idx == NULL)
			continue;
		index = idx - (char*)kctl->id.name;
		if (strncmp(kctl->id.name, w->name, index))
			continue;

		if (strstr(kctl->id.name, "Volume"))
			ret = sst_fill_module_list(kctl, w, SST_MODULE_GAIN);

		else if (strstr(kctl->id.name, "params"))
			ret = sst_fill_module_list(kctl, w, SST_MODULE_ALGO);

		else if (strstr(kctl->id.name, "Switch") &&
			 strstr(kctl->id.name, "Gain")) {
			struct sst_gain_mixer_control *mc =
						(void *)kctl->private_value;

			mc->w = w;

		} else if (strstr(kctl->id.name, "interleaver")) {
			struct sst_enum *e = (void *)kctl->private_value;

			e->w = w;

		} else if (strstr(kctl->id.name, "deinterleaver")) {
			struct sst_enum *e = (void *)kctl->private_value;

			e->w = w;
		}

		if (ret < 0) {
			up_read(&card->controls_rwsem);
			return ret;
		}
	}

	up_read(&card->controls_rwsem);
	return 0;
}

/**
 * sst_fill_linked_widgets - fill the parent pointer for the linked widget
 */
static void sst_fill_linked_widgets(struct snd_soc_platform *platform,
						struct sst_ids *ids)
{
	struct snd_soc_dapm_widget *w;
	unsigned int len = strlen(ids->parent_wname);

	list_for_each_entry(w, &platform->component.card->widgets, list) {
		if (!strncmp(ids->parent_wname, w->name, len)) {
			ids->parent_w = w;
			break;
		}
	}
}

/**
 * sst_map_modules_to_pipe - fill algo/gains list for all pipes
 */
static int sst_map_modules_to_pipe(struct snd_soc_platform *platform)
{
	struct snd_soc_dapm_widget *w;
	int ret = 0;

	list_for_each_entry(w, &platform->component.card->widgets, list) {
		if (is_sst_dapm_widget(w) && (w->priv)) {
			struct sst_ids *ids = w->priv;

			dev_dbg(platform->dev, "widget type=%d name=%s\n",
					w->id, w->name);
			INIT_LIST_HEAD(&ids->algo_list);
			INIT_LIST_HEAD(&ids->gain_list);
			ret = sst_fill_widget_module_info(w, platform);

			if (ret < 0)
				return ret;

			/* fill linked widgets */
			if (ids->parent_wname !=  NULL)
				sst_fill_linked_widgets(platform, ids);
		}
	}
	return 0;
}

int sst_dsp_init_v2_dpcm(struct snd_soc_platform *platform)
{
	int i, ret = 0;
	struct snd_soc_dapm_context *dapm =
			snd_soc_component_get_dapm(&platform->component);
	struct sst_data *drv = snd_soc_platform_get_drvdata(platform);
	unsigned int gains = ARRAY_SIZE(sst_gain_controls)/3;

	drv->byte_stream = devm_kzalloc(platform->dev,
					SST_MAX_BIN_BYTES, GFP_KERNEL);
	if (!drv->byte_stream)
		return -ENOMEM;

	snd_soc_dapm_new_controls(dapm, sst_dapm_widgets,
			ARRAY_SIZE(sst_dapm_widgets));
	snd_soc_dapm_add_routes(dapm, intercon,
			ARRAY_SIZE(intercon));
	snd_soc_dapm_new_widgets(dapm->card);

	for (i = 0; i < gains; i++) {
		sst_gains[i].mute = SST_GAIN_MUTE_DEFAULT;
		sst_gains[i].l_gain = SST_GAIN_VOLUME_DEFAULT;
		sst_gains[i].r_gain = SST_GAIN_VOLUME_DEFAULT;
		sst_gains[i].ramp_duration = SST_GAIN_RAMP_DURATION_DEFAULT;
	}

	ret = snd_soc_add_platform_controls(platform, sst_gain_controls,
			ARRAY_SIZE(sst_gain_controls));
	if (ret)
		return ret;

	/* Initialize algo control params */
	ret = sst_algo_control_init(platform->dev);
	if (ret)
		return ret;
	ret = snd_soc_add_platform_controls(platform, sst_algo_controls,
			ARRAY_SIZE(sst_algo_controls));
	if (ret)
		return ret;

	ret = snd_soc_add_platform_controls(platform, sst_slot_controls,
			ARRAY_SIZE(sst_slot_controls));
	if (ret)
		return ret;

	ret = sst_map_modules_to_pipe(platform);

	return ret;
}
OpenPOWER on IntegriCloud