Free Electrons

Embedded Linux Experts

   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
/*
 * wm8958-dsp2.c  --  WM8958 DSP2 support
 *
 * Copyright 2011 Wolfson Microelectronics plc
 *
 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <sound/soc.h>
#include <sound/initval.h>
#include <sound/tlv.h>
#include <trace/events/asoc.h>

#include <linux/mfd/wm8994/core.h>
#include <linux/mfd/wm8994/registers.h>
#include <linux/mfd/wm8994/pdata.h>
#include <linux/mfd/wm8994/gpio.h>

#include "wm8994.h"

#define WM_FW_BLOCK_INFO 0xff
#define WM_FW_BLOCK_PM   0x00
#define WM_FW_BLOCK_X    0x01
#define WM_FW_BLOCK_Y    0x02
#define WM_FW_BLOCK_Z    0x03
#define WM_FW_BLOCK_I    0x06
#define WM_FW_BLOCK_A    0x08
#define WM_FW_BLOCK_C    0x0c

static int wm8958_dsp2_fw(struct snd_soc_codec *codec, const char *name,
			  const struct firmware *fw, bool check)
{
	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
	u64 data64;
	u32 data32;
	const u8 *data;
	char *str;
	size_t block_len, len;
	int ret = 0;

	/* Suppress unneeded downloads */
	if (wm8994->cur_fw == fw)
		return 0;

	if (fw->size < 32) {
		dev_err(codec->dev, "%s: firmware too short (%zd bytes)\n",
			name, fw->size);
		goto err;
	}

	if (memcmp(fw->data, "WMFW", 4) != 0) {
		memcpy(&data32, fw->data, sizeof(data32));
		data32 = be32_to_cpu(data32);
		dev_err(codec->dev, "%s: firmware has bad file magic %08x\n",
			name, data32);
		goto err;
	}

	memcpy(&data32, fw->data + 4, sizeof(data32));
	len = be32_to_cpu(data32);

	memcpy(&data32, fw->data + 8, sizeof(data32));
	data32 = be32_to_cpu(data32);
	if ((data32 >> 24) & 0xff) {
		dev_err(codec->dev, "%s: unsupported firmware version %d\n",
			name, (data32 >> 24) & 0xff);
		goto err;
	}
	if ((data32 & 0xffff) != 8958) {
		dev_err(codec->dev, "%s: unsupported target device %d\n",
			name, data32 & 0xffff);
		goto err;
	}
	if (((data32 >> 16) & 0xff) != 0xc) {
		dev_err(codec->dev, "%s: unsupported target core %d\n",
			name, (data32 >> 16) & 0xff);
		goto err;
	}

	if (check) {
		memcpy(&data64, fw->data + 24, sizeof(u64));
		dev_info(codec->dev, "%s timestamp %llx\n",
			 name, be64_to_cpu(data64));
	} else {
		snd_soc_write(codec, 0x102, 0x2);
		snd_soc_write(codec, 0x900, 0x2);
	}

	data = fw->data + len;
	len = fw->size - len;
	while (len) {
		if (len < 12) {
			dev_err(codec->dev, "%s short data block of %zd\n",
				name, len);
			goto err;
		}

		memcpy(&data32, data + 4, sizeof(data32));
		block_len = be32_to_cpu(data32);
		if (block_len + 8 > len) {
			dev_err(codec->dev, "%zd byte block longer than file\n",
				block_len);
			goto err;
		}
		if (block_len == 0) {
			dev_err(codec->dev, "Zero length block\n");
			goto err;
		}

		memcpy(&data32, data, sizeof(data32));
		data32 = be32_to_cpu(data32);

		switch ((data32 >> 24) & 0xff) {
		case WM_FW_BLOCK_INFO:
			/* Informational text */
			if (!check)
				break;

			str = kzalloc(block_len + 1, GFP_KERNEL);
			if (str) {
				memcpy(str, data + 8, block_len);
				dev_info(codec->dev, "%s: %s\n", name, str);
				kfree(str);
			} else {
				dev_err(codec->dev, "Out of memory\n");
			}
			break;
		case WM_FW_BLOCK_PM:
		case WM_FW_BLOCK_X:
		case WM_FW_BLOCK_Y:
		case WM_FW_BLOCK_Z:
		case WM_FW_BLOCK_I:
		case WM_FW_BLOCK_A:
		case WM_FW_BLOCK_C:
			dev_dbg(codec->dev, "%s: %zd bytes of %x@%x\n", name,
				block_len, (data32 >> 24) & 0xff,
				data32 & 0xffffff);

			if (check)
				break;

			data32 &= 0xffffff;

			wm8994_bulk_write(codec->control_data,
					  data32 & 0xffffff,
					  block_len / 2,
					  (void *)(data + 8));

			break;
		default:
			dev_warn(codec->dev, "%s: unknown block type %d\n",
				 name, (data32 >> 24) & 0xff);
			break;
		}

		/* Round up to the next 32 bit word */
		block_len += block_len % 4;

		data += block_len + 8;
		len -= block_len + 8;
	}

	if (!check) {
		dev_dbg(codec->dev, "%s: download done\n", name);
		wm8994->cur_fw = fw;
	} else {
		dev_info(codec->dev, "%s: got firmware\n", name);
	}

	goto ok;

err:
	ret = -EINVAL;
ok:
	if (!check) {
		snd_soc_write(codec, 0x900, 0x0);
		snd_soc_write(codec, 0x102, 0x0);
	}

	return ret;
}

static void wm8958_dsp_start_mbc(struct snd_soc_codec *codec, int path)
{
	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
	struct wm8994_pdata *pdata = wm8994->pdata;
	int i;

	/* If the DSP is already running then noop */
	if (snd_soc_read(codec, WM8958_DSP2_PROGRAM) & WM8958_DSP2_ENA)
		return;

	/* If we have MBC firmware download it */
	if (wm8994->mbc)
		wm8958_dsp2_fw(codec, "MBC", wm8994->mbc, false);

	snd_soc_update_bits(codec, WM8958_DSP2_PROGRAM,
			    WM8958_DSP2_ENA, WM8958_DSP2_ENA);

	/* If we've got user supplied MBC settings use them */
	if (pdata && pdata->num_mbc_cfgs) {
		struct wm8958_mbc_cfg *cfg
			= &pdata->mbc_cfgs[wm8994->mbc_cfg];

		for (i = 0; i < ARRAY_SIZE(cfg->coeff_regs); i++)
			snd_soc_write(codec, i + WM8958_MBC_BAND_1_K_1,
				      cfg->coeff_regs[i]);

		for (i = 0; i < ARRAY_SIZE(cfg->cutoff_regs); i++)
			snd_soc_write(codec,
				      i + WM8958_MBC_BAND_2_LOWER_CUTOFF_C1_1,
				      cfg->cutoff_regs[i]);
	}

	/* Run the DSP */
	snd_soc_write(codec, WM8958_DSP2_EXECCONTROL,
		      WM8958_DSP2_RUNR);

	/* And we're off! */
	snd_soc_update_bits(codec, WM8958_DSP2_CONFIG,
			    WM8958_MBC_ENA |
			    WM8958_MBC_SEL_MASK,
			    path << WM8958_MBC_SEL_SHIFT |
			    WM8958_MBC_ENA);
}

static void wm8958_dsp_start_vss(struct snd_soc_codec *codec, int path)
{
	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
	struct wm8994_pdata *pdata = wm8994->pdata;
	int i, ena;

	if (wm8994->mbc_vss)
		wm8958_dsp2_fw(codec, "MBC+VSS", wm8994->mbc_vss, false);

	snd_soc_update_bits(codec, WM8958_DSP2_PROGRAM,
			    WM8958_DSP2_ENA, WM8958_DSP2_ENA);

	/* If we've got user supplied settings use them */
	if (pdata && pdata->num_mbc_cfgs) {
		struct wm8958_mbc_cfg *cfg
			= &pdata->mbc_cfgs[wm8994->mbc_cfg];

		for (i = 0; i < ARRAY_SIZE(cfg->combined_regs); i++)
			snd_soc_write(codec, i + 0x2800,
				      cfg->combined_regs[i]);
	}

	if (pdata && pdata->num_vss_cfgs) {
		struct wm8958_vss_cfg *cfg
			= &pdata->vss_cfgs[wm8994->vss_cfg];

		for (i = 0; i < ARRAY_SIZE(cfg->regs); i++)
			snd_soc_write(codec, i + 0x2600, cfg->regs[i]);
	}

	if (pdata && pdata->num_vss_hpf_cfgs) {
		struct wm8958_vss_hpf_cfg *cfg
			= &pdata->vss_hpf_cfgs[wm8994->vss_hpf_cfg];

		for (i = 0; i < ARRAY_SIZE(cfg->regs); i++)
			snd_soc_write(codec, i + 0x2400, cfg->regs[i]);
	}

	/* Run the DSP */
	snd_soc_write(codec, WM8958_DSP2_EXECCONTROL,
		      WM8958_DSP2_RUNR);

	/* Enable the algorithms we've selected */
	ena = 0;
	if (wm8994->mbc_ena[path])
		ena |= 0x8;
	if (wm8994->hpf2_ena[path])
		ena |= 0x4;
	if (wm8994->hpf1_ena[path])
		ena |= 0x2;
	if (wm8994->vss_ena[path])
		ena |= 0x1;

	snd_soc_write(codec, 0x2201, ena);

	/* Switch the DSP into the data path */
	snd_soc_update_bits(codec, WM8958_DSP2_CONFIG,
			    WM8958_MBC_SEL_MASK | WM8958_MBC_ENA,
			    path << WM8958_MBC_SEL_SHIFT | WM8958_MBC_ENA);
}

static void wm8958_dsp_start_enh_eq(struct snd_soc_codec *codec, int path)
{
	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
	struct wm8994_pdata *pdata = wm8994->pdata;
	int i;

	wm8958_dsp2_fw(codec, "ENH_EQ", wm8994->enh_eq, false);

	snd_soc_update_bits(codec, WM8958_DSP2_PROGRAM,
			    WM8958_DSP2_ENA, WM8958_DSP2_ENA);

	/* If we've got user supplied settings use them */
	if (pdata && pdata->num_enh_eq_cfgs) {
		struct wm8958_enh_eq_cfg *cfg
			= &pdata->enh_eq_cfgs[wm8994->enh_eq_cfg];

		for (i = 0; i < ARRAY_SIZE(cfg->regs); i++)
			snd_soc_write(codec, i + 0x2200,
				      cfg->regs[i]);
	}

	/* Run the DSP */
	snd_soc_write(codec, WM8958_DSP2_EXECCONTROL,
		      WM8958_DSP2_RUNR);

	/* Switch the DSP into the data path */
	snd_soc_update_bits(codec, WM8958_DSP2_CONFIG,
			    WM8958_MBC_SEL_MASK | WM8958_MBC_ENA,
			    path << WM8958_MBC_SEL_SHIFT | WM8958_MBC_ENA);
}

static void wm8958_dsp_apply(struct snd_soc_codec *codec, int path, int start)
{
	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
	int pwr_reg = snd_soc_read(codec, WM8994_POWER_MANAGEMENT_5);
	int ena, reg, aif;

	switch (path) {
	case 0:
		pwr_reg &= (WM8994_AIF1DAC1L_ENA | WM8994_AIF1DAC1R_ENA);
		aif = 0;
		break;
	case 1:
		pwr_reg &= (WM8994_AIF1DAC2L_ENA | WM8994_AIF1DAC2R_ENA);
		aif = 0;
		break;
	case 2:
		pwr_reg &= (WM8994_AIF2DACL_ENA | WM8994_AIF2DACR_ENA);
		aif = 1;
		break;
	default:
		BUG();
		return;
	}

	/* Do we have both an active AIF and an active algorithm? */
	ena = wm8994->mbc_ena[path] || wm8994->vss_ena[path] ||
		wm8994->hpf1_ena[path] || wm8994->hpf2_ena[path] ||
		wm8994->enh_eq_ena[path];
	if (!pwr_reg)
		ena = 0;

	reg = snd_soc_read(codec, WM8958_DSP2_PROGRAM);

	dev_dbg(codec->dev, "DSP path %d %d startup: %d, power: %x, DSP: %x\n",
		path, wm8994->dsp_active, start, pwr_reg, reg);

	if (start && ena) {
		/* If the DSP is already running then noop */
		if (reg & WM8958_DSP2_ENA)
			return;

		/* If either AIFnCLK is not yet enabled postpone */
		if (!(snd_soc_read(codec, WM8994_AIF1_CLOCKING_1)
		      & WM8994_AIF1CLK_ENA_MASK) &&
		    !(snd_soc_read(codec, WM8994_AIF2_CLOCKING_1)
		      & WM8994_AIF2CLK_ENA_MASK))
			return;

		/* Switch the clock over to the appropriate AIF */
		snd_soc_update_bits(codec, WM8994_CLOCKING_1,
				    WM8958_DSP2CLK_SRC | WM8958_DSP2CLK_ENA,
				    aif << WM8958_DSP2CLK_SRC_SHIFT |
				    WM8958_DSP2CLK_ENA);

		if (wm8994->enh_eq_ena[path])
			wm8958_dsp_start_enh_eq(codec, path);
		else if (wm8994->vss_ena[path] || wm8994->hpf1_ena[path] ||
		    wm8994->hpf2_ena[path])
			wm8958_dsp_start_vss(codec, path);
		else if (wm8994->mbc_ena[path])
			wm8958_dsp_start_mbc(codec, path);

		wm8994->dsp_active = path;

		dev_dbg(codec->dev, "DSP running in path %d\n", path);
	}

	if (!start && wm8994->dsp_active == path) {
		/* If the DSP is already stopped then noop */
		if (!(reg & WM8958_DSP2_ENA))
			return;

		snd_soc_update_bits(codec, WM8958_DSP2_CONFIG,
				    WM8958_MBC_ENA, 0);	
		snd_soc_write(codec, WM8958_DSP2_EXECCONTROL,
			      WM8958_DSP2_STOP);
		snd_soc_update_bits(codec, WM8958_DSP2_PROGRAM,
				    WM8958_DSP2_ENA, 0);
		snd_soc_update_bits(codec, WM8994_CLOCKING_1,
				    WM8958_DSP2CLK_ENA, 0);

		wm8994->dsp_active = -1;

		dev_dbg(codec->dev, "DSP stopped\n");
	}
}

int wm8958_aif_ev(struct snd_soc_dapm_widget *w,
		  struct snd_kcontrol *kcontrol, int event)
{
	struct snd_soc_codec *codec = w->codec;
	int i;

	switch (event) {
	case SND_SOC_DAPM_POST_PMU:
	case SND_SOC_DAPM_PRE_PMU:
		for (i = 0; i < 3; i++)
			wm8958_dsp_apply(codec, i, 1);
		break;
	case SND_SOC_DAPM_POST_PMD:
	case SND_SOC_DAPM_PRE_PMD:
		for (i = 0; i < 3; i++)
			wm8958_dsp_apply(codec, i, 0);
		break;
	}

	return 0;
}

/* Check if DSP2 is in use on another AIF */
static int wm8958_dsp2_busy(struct wm8994_priv *wm8994, int aif)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(wm8994->mbc_ena); i++) {
		if (i == aif)
			continue;
		if (wm8994->mbc_ena[i] || wm8994->vss_ena[i] ||
		    wm8994->hpf1_ena[i] || wm8994->hpf2_ena[i])
			return 1;
	}

	return 0;
}

static int wm8958_put_mbc_enum(struct snd_kcontrol *kcontrol,
			       struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
	struct wm8994_pdata *pdata = wm8994->pdata;
	int value = ucontrol->value.integer.value[0];
	int reg;

	/* Don't allow on the fly reconfiguration */
	reg = snd_soc_read(codec, WM8994_CLOCKING_1);
	if (reg < 0 || reg & WM8958_DSP2CLK_ENA)
		return -EBUSY;

	if (value >= pdata->num_mbc_cfgs)
		return -EINVAL;

	wm8994->mbc_cfg = value;

	return 0;
}

static int wm8958_get_mbc_enum(struct snd_kcontrol *kcontrol,
			       struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);

	ucontrol->value.enumerated.item[0] = wm8994->mbc_cfg;

	return 0;
}

static int wm8958_mbc_info(struct snd_kcontrol *kcontrol,
			   struct snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 1;
	return 0;
}

static int wm8958_mbc_get(struct snd_kcontrol *kcontrol,
			  struct snd_ctl_elem_value *ucontrol)
{
	int mbc = kcontrol->private_value;
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);

	ucontrol->value.integer.value[0] = wm8994->mbc_ena[mbc];

	return 0;
}

static int wm8958_mbc_put(struct snd_kcontrol *kcontrol,
			  struct snd_ctl_elem_value *ucontrol)
{
	int mbc = kcontrol->private_value;
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);

	if (wm8994->mbc_ena[mbc] == ucontrol->value.integer.value[0])
		return 0;

	if (ucontrol->value.integer.value[0] > 1)
		return -EINVAL;

	if (wm8958_dsp2_busy(wm8994, mbc)) {
		dev_dbg(codec->dev, "DSP2 active on %d already\n", mbc);
		return -EBUSY;
	}

	if (wm8994->enh_eq_ena[mbc])
		return -EBUSY;

	wm8994->mbc_ena[mbc] = ucontrol->value.integer.value[0];

	wm8958_dsp_apply(codec, mbc, wm8994->mbc_ena[mbc]);

	return 0;
}

#define WM8958_MBC_SWITCH(xname, xval) {\
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,\
	.info = wm8958_mbc_info, \
	.get = wm8958_mbc_get, .put = wm8958_mbc_put, \
	.private_value = xval }

static int wm8958_put_vss_enum(struct snd_kcontrol *kcontrol,
			       struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
	struct wm8994_pdata *pdata = wm8994->pdata;
	int value = ucontrol->value.integer.value[0];
	int reg;

	/* Don't allow on the fly reconfiguration */
	reg = snd_soc_read(codec, WM8994_CLOCKING_1);
	if (reg < 0 || reg & WM8958_DSP2CLK_ENA)
		return -EBUSY;

	if (value >= pdata->num_vss_cfgs)
		return -EINVAL;

	wm8994->vss_cfg = value;

	return 0;
}

static int wm8958_get_vss_enum(struct snd_kcontrol *kcontrol,
			       struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);

	ucontrol->value.enumerated.item[0] = wm8994->vss_cfg;

	return 0;
}

static int wm8958_put_vss_hpf_enum(struct snd_kcontrol *kcontrol,
				   struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
	struct wm8994_pdata *pdata = wm8994->pdata;
	int value = ucontrol->value.integer.value[0];
	int reg;

	/* Don't allow on the fly reconfiguration */
	reg = snd_soc_read(codec, WM8994_CLOCKING_1);
	if (reg < 0 || reg & WM8958_DSP2CLK_ENA)
		return -EBUSY;

	if (value >= pdata->num_vss_hpf_cfgs)
		return -EINVAL;

	wm8994->vss_hpf_cfg = value;

	return 0;
}

static int wm8958_get_vss_hpf_enum(struct snd_kcontrol *kcontrol,
				   struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);

	ucontrol->value.enumerated.item[0] = wm8994->vss_hpf_cfg;

	return 0;
}

static int wm8958_vss_info(struct snd_kcontrol *kcontrol,
			   struct snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 1;
	return 0;
}

static int wm8958_vss_get(struct snd_kcontrol *kcontrol,
			  struct snd_ctl_elem_value *ucontrol)
{
	int vss = kcontrol->private_value;
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);

	ucontrol->value.integer.value[0] = wm8994->vss_ena[vss];

	return 0;
}

static int wm8958_vss_put(struct snd_kcontrol *kcontrol,
			  struct snd_ctl_elem_value *ucontrol)
{
	int vss = kcontrol->private_value;
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);

	if (wm8994->vss_ena[vss] == ucontrol->value.integer.value[0])
		return 0;

	if (ucontrol->value.integer.value[0] > 1)
		return -EINVAL;

	if (!wm8994->mbc_vss)
		return -ENODEV;

	if (wm8958_dsp2_busy(wm8994, vss)) {
		dev_dbg(codec->dev, "DSP2 active on %d already\n", vss);
		return -EBUSY;
	}

	if (wm8994->enh_eq_ena[vss])
		return -EBUSY;

	wm8994->vss_ena[vss] = ucontrol->value.integer.value[0];

	wm8958_dsp_apply(codec, vss, wm8994->vss_ena[vss]);

	return 0;
}


#define WM8958_VSS_SWITCH(xname, xval) {\
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,\
	.info = wm8958_vss_info, \
	.get = wm8958_vss_get, .put = wm8958_vss_put, \
	.private_value = xval }

static int wm8958_hpf_info(struct snd_kcontrol *kcontrol,
			   struct snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 1;
	return 0;
}

static int wm8958_hpf_get(struct snd_kcontrol *kcontrol,
			  struct snd_ctl_elem_value *ucontrol)
{
	int hpf = kcontrol->private_value;
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);

	if (hpf < 3)
		ucontrol->value.integer.value[0] = wm8994->hpf1_ena[hpf % 3];
	else
		ucontrol->value.integer.value[0] = wm8994->hpf2_ena[hpf % 3];

	return 0;
}

static int wm8958_hpf_put(struct snd_kcontrol *kcontrol,
			  struct snd_ctl_elem_value *ucontrol)
{
	int hpf = kcontrol->private_value;
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);

	if (hpf < 3) {
		if (wm8994->hpf1_ena[hpf % 3] ==
		    ucontrol->value.integer.value[0])
			return 0;
	} else {
		if (wm8994->hpf2_ena[hpf % 3] ==
		    ucontrol->value.integer.value[0])
			return 0;
	}

	if (ucontrol->value.integer.value[0] > 1)
		return -EINVAL;

	if (!wm8994->mbc_vss)
		return -ENODEV;

	if (wm8958_dsp2_busy(wm8994, hpf % 3)) {
		dev_dbg(codec->dev, "DSP2 active on %d already\n", hpf);
		return -EBUSY;
	}

	if (wm8994->enh_eq_ena[hpf % 3])
		return -EBUSY;

	if (hpf < 3)
		wm8994->hpf1_ena[hpf % 3] = ucontrol->value.integer.value[0];
	else
		wm8994->hpf2_ena[hpf % 3] = ucontrol->value.integer.value[0];

	wm8958_dsp_apply(codec, hpf % 3, ucontrol->value.integer.value[0]);

	return 0;
}

#define WM8958_HPF_SWITCH(xname, xval) {\
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,\
	.info = wm8958_hpf_info, \
	.get = wm8958_hpf_get, .put = wm8958_hpf_put, \
	.private_value = xval }

static int wm8958_put_enh_eq_enum(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
	struct wm8994_pdata *pdata = wm8994->pdata;
	int value = ucontrol->value.integer.value[0];
	int reg;

	/* Don't allow on the fly reconfiguration */
	reg = snd_soc_read(codec, WM8994_CLOCKING_1);
	if (reg < 0 || reg & WM8958_DSP2CLK_ENA)
		return -EBUSY;

	if (value >= pdata->num_enh_eq_cfgs)
		return -EINVAL;

	wm8994->enh_eq_cfg = value;

	return 0;
}

static int wm8958_get_enh_eq_enum(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);

	ucontrol->value.enumerated.item[0] = wm8994->enh_eq_cfg;

	return 0;
}

static int wm8958_enh_eq_info(struct snd_kcontrol *kcontrol,
			   struct snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 1;
	return 0;
}

static int wm8958_enh_eq_get(struct snd_kcontrol *kcontrol,
			  struct snd_ctl_elem_value *ucontrol)
{
	int eq = kcontrol->private_value;
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);

	ucontrol->value.integer.value[0] = wm8994->enh_eq_ena[eq];

	return 0;
}

static int wm8958_enh_eq_put(struct snd_kcontrol *kcontrol,
			  struct snd_ctl_elem_value *ucontrol)
{
	int eq = kcontrol->private_value;
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);

	if (wm8994->enh_eq_ena[eq] == ucontrol->value.integer.value[0])
		return 0;

	if (ucontrol->value.integer.value[0] > 1)
		return -EINVAL;

	if (!wm8994->enh_eq)
		return -ENODEV;

	if (wm8958_dsp2_busy(wm8994, eq)) {
		dev_dbg(codec->dev, "DSP2 active on %d already\n", eq);
		return -EBUSY;
	}

	if (wm8994->mbc_ena[eq] || wm8994->vss_ena[eq] ||
	    wm8994->hpf1_ena[eq] || wm8994->hpf2_ena[eq])
		return -EBUSY;

	wm8994->enh_eq_ena[eq] = ucontrol->value.integer.value[0];

	wm8958_dsp_apply(codec, eq, ucontrol->value.integer.value[0]);

	return 0;
}

#define WM8958_ENH_EQ_SWITCH(xname, xval) {\
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,\
	.info = wm8958_enh_eq_info, \
	.get = wm8958_enh_eq_get, .put = wm8958_enh_eq_put, \
	.private_value = xval }

static const struct snd_kcontrol_new wm8958_mbc_snd_controls[] = {
WM8958_MBC_SWITCH("AIF1DAC1 MBC Switch", 0),
WM8958_MBC_SWITCH("AIF1DAC2 MBC Switch", 1),
WM8958_MBC_SWITCH("AIF2DAC MBC Switch", 2),
};

static const struct snd_kcontrol_new wm8958_vss_snd_controls[] = {
WM8958_VSS_SWITCH("AIF1DAC1 VSS Switch", 0),
WM8958_VSS_SWITCH("AIF1DAC2 VSS Switch", 1),
WM8958_VSS_SWITCH("AIF2DAC VSS Switch", 2),
WM8958_HPF_SWITCH("AIF1DAC1 HPF1 Switch", 0),
WM8958_HPF_SWITCH("AIF1DAC2 HPF1 Switch", 1),
WM8958_HPF_SWITCH("AIF2DAC HPF1 Switch", 2),
WM8958_HPF_SWITCH("AIF1DAC1 HPF2 Switch", 3),
WM8958_HPF_SWITCH("AIF1DAC2 HPF2 Switch", 4),
WM8958_HPF_SWITCH("AIF2DAC HPF2 Switch", 5),
};

static const struct snd_kcontrol_new wm8958_enh_eq_snd_controls[] = {
WM8958_ENH_EQ_SWITCH("AIF1DAC1 Enhanced EQ Switch", 0),
WM8958_ENH_EQ_SWITCH("AIF1DAC2 Enhanced EQ Switch", 1),
WM8958_ENH_EQ_SWITCH("AIF2DAC Enhanced EQ Switch", 2),
};

static void wm8958_enh_eq_loaded(const struct firmware *fw, void *context)
{
	struct snd_soc_codec *codec = context;
	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);

	if (fw && (wm8958_dsp2_fw(codec, "ENH_EQ", fw, true) == 0)) {
		mutex_lock(&codec->mutex);
		wm8994->enh_eq = fw;
		mutex_unlock(&codec->mutex);
	}
}

static void wm8958_mbc_vss_loaded(const struct firmware *fw, void *context)
{
	struct snd_soc_codec *codec = context;
	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);

	if (fw && (wm8958_dsp2_fw(codec, "MBC+VSS", fw, true) == 0)) {
		mutex_lock(&codec->mutex);
		wm8994->mbc_vss = fw;
		mutex_unlock(&codec->mutex);
	}

	/* We can't have more than one request outstanding at once so
	 * we daisy chain.
	 */
	request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
				"wm8958_enh_eq.wfw", codec->dev, GFP_KERNEL,
				codec, wm8958_enh_eq_loaded);
}

static void wm8958_mbc_loaded(const struct firmware *fw, void *context)
{
	struct snd_soc_codec *codec = context;
	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);

	if (wm8958_dsp2_fw(codec, "MBC", fw, true) != 0)
		return;

	mutex_lock(&codec->mutex);
	wm8994->mbc = fw;
	mutex_unlock(&codec->mutex);

	/* We can't have more than one request outstanding at once so
	 * we daisy chain.
	 */
	request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
				"wm8958_mbc_vss.wfw", codec->dev, GFP_KERNEL,
				codec, wm8958_mbc_vss_loaded);
}

void wm8958_dsp2_init(struct snd_soc_codec *codec)
{
	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
	struct wm8994_pdata *pdata = wm8994->pdata;
	int ret, i;

	wm8994->dsp_active = -1;

	snd_soc_add_codec_controls(codec, wm8958_mbc_snd_controls,
			     ARRAY_SIZE(wm8958_mbc_snd_controls));
	snd_soc_add_codec_controls(codec, wm8958_vss_snd_controls,
			     ARRAY_SIZE(wm8958_vss_snd_controls));
	snd_soc_add_codec_controls(codec, wm8958_enh_eq_snd_controls,
			     ARRAY_SIZE(wm8958_enh_eq_snd_controls));


	/* We don't *require* firmware and don't want to delay boot */
	request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
				"wm8958_mbc.wfw", codec->dev, GFP_KERNEL,
				codec, wm8958_mbc_loaded);

	if (!pdata)
		return;

	if (pdata->num_mbc_cfgs) {
		struct snd_kcontrol_new control[] = {
			SOC_ENUM_EXT("MBC Mode", wm8994->mbc_enum,
				     wm8958_get_mbc_enum, wm8958_put_mbc_enum),
		};

		/* We need an array of texts for the enum API */
		wm8994->mbc_texts = kmalloc(sizeof(char *)
					    * pdata->num_mbc_cfgs, GFP_KERNEL);
		if (!wm8994->mbc_texts) {
			dev_err(wm8994->codec->dev,
				"Failed to allocate %d MBC config texts\n",
				pdata->num_mbc_cfgs);
			return;
		}

		for (i = 0; i < pdata->num_mbc_cfgs; i++)
			wm8994->mbc_texts[i] = pdata->mbc_cfgs[i].name;

		wm8994->mbc_enum.max = pdata->num_mbc_cfgs;
		wm8994->mbc_enum.texts = wm8994->mbc_texts;

		ret = snd_soc_add_codec_controls(wm8994->codec, control, 1);
		if (ret != 0)
			dev_err(wm8994->codec->dev,
				"Failed to add MBC mode controls: %d\n", ret);
	}

	if (pdata->num_vss_cfgs) {
		struct snd_kcontrol_new control[] = {
			SOC_ENUM_EXT("VSS Mode", wm8994->vss_enum,
				     wm8958_get_vss_enum, wm8958_put_vss_enum),
		};

		/* We need an array of texts for the enum API */
		wm8994->vss_texts = kmalloc(sizeof(char *)
					    * pdata->num_vss_cfgs, GFP_KERNEL);
		if (!wm8994->vss_texts) {
			dev_err(wm8994->codec->dev,
				"Failed to allocate %d VSS config texts\n",
				pdata->num_vss_cfgs);
			return;
		}

		for (i = 0; i < pdata->num_vss_cfgs; i++)
			wm8994->vss_texts[i] = pdata->vss_cfgs[i].name;

		wm8994->vss_enum.max = pdata->num_vss_cfgs;
		wm8994->vss_enum.texts = wm8994->vss_texts;

		ret = snd_soc_add_codec_controls(wm8994->codec, control, 1);
		if (ret != 0)
			dev_err(wm8994->codec->dev,
				"Failed to add VSS mode controls: %d\n", ret);
	}

	if (pdata->num_vss_hpf_cfgs) {
		struct snd_kcontrol_new control[] = {
			SOC_ENUM_EXT("VSS HPF Mode", wm8994->vss_hpf_enum,
				     wm8958_get_vss_hpf_enum,
				     wm8958_put_vss_hpf_enum),
		};

		/* We need an array of texts for the enum API */
		wm8994->vss_hpf_texts = kmalloc(sizeof(char *)
						* pdata->num_vss_hpf_cfgs, GFP_KERNEL);
		if (!wm8994->vss_hpf_texts) {
			dev_err(wm8994->codec->dev,
				"Failed to allocate %d VSS HPF config texts\n",
				pdata->num_vss_hpf_cfgs);
			return;
		}

		for (i = 0; i < pdata->num_vss_hpf_cfgs; i++)
			wm8994->vss_hpf_texts[i] = pdata->vss_hpf_cfgs[i].name;

		wm8994->vss_hpf_enum.max = pdata->num_vss_hpf_cfgs;
		wm8994->vss_hpf_enum.texts = wm8994->vss_hpf_texts;

		ret = snd_soc_add_codec_controls(wm8994->codec, control, 1);
		if (ret != 0)
			dev_err(wm8994->codec->dev,
				"Failed to add VSS HPFmode controls: %d\n",
				ret);
	}

	if (pdata->num_enh_eq_cfgs) {
		struct snd_kcontrol_new control[] = {
			SOC_ENUM_EXT("Enhanced EQ Mode", wm8994->enh_eq_enum,
				     wm8958_get_enh_eq_enum,
				     wm8958_put_enh_eq_enum),
		};

		/* We need an array of texts for the enum API */
		wm8994->enh_eq_texts = kmalloc(sizeof(char *)
						* pdata->num_enh_eq_cfgs, GFP_KERNEL);
		if (!wm8994->enh_eq_texts) {
			dev_err(wm8994->codec->dev,
				"Failed to allocate %d enhanced EQ config texts\n",
				pdata->num_enh_eq_cfgs);
			return;
		}

		for (i = 0; i < pdata->num_enh_eq_cfgs; i++)
			wm8994->enh_eq_texts[i] = pdata->enh_eq_cfgs[i].name;

		wm8994->enh_eq_enum.max = pdata->num_enh_eq_cfgs;
		wm8994->enh_eq_enum.texts = wm8994->enh_eq_texts;

		ret = snd_soc_add_codec_controls(wm8994->codec, control, 1);
		if (ret != 0)
			dev_err(wm8994->codec->dev,
				"Failed to add enhanced EQ controls: %d\n",
				ret);
	}
}