ctmixer.c 30 KB
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
/**
 * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
 *
 * This source file is released under GPL v2 license (no other versions).
 * See the COPYING file included in the main directory of this source
 * distribution for the license terms and conditions.
 *
 * @File	ctmixer.c
 *
 * @Brief
 * This file contains the implementation of alsa mixer device functions.
 *
 * @Author	Liu Chun
 * @Date 	May 28 2008
 *
 */


#include "ctmixer.h"
#include "ctamixer.h"
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/control.h>
#include <sound/asoundef.h>
#include <sound/pcm.h>
#include <sound/tlv.h>

enum CT_SUM_CTL {
	SUM_IN_F,
	SUM_IN_R,
	SUM_IN_C,
	SUM_IN_S,
	SUM_IN_F_C,

	NUM_CT_SUMS
};

enum CT_AMIXER_CTL {
	/* volume control mixers */
	AMIXER_MASTER_F,
	AMIXER_MASTER_R,
	AMIXER_MASTER_C,
	AMIXER_MASTER_S,
	AMIXER_PCM_F,
	AMIXER_PCM_R,
	AMIXER_PCM_C,
	AMIXER_PCM_S,
	AMIXER_SPDIFI,
	AMIXER_LINEIN,
	AMIXER_MIC,
	AMIXER_SPDIFO,
	AMIXER_WAVE_F,
	AMIXER_WAVE_R,
	AMIXER_WAVE_C,
	AMIXER_WAVE_S,
	AMIXER_MASTER_F_C,
	AMIXER_PCM_F_C,
	AMIXER_SPDIFI_C,
	AMIXER_LINEIN_C,
	AMIXER_MIC_C,

	/* this should always be the last one */
	NUM_CT_AMIXERS
};

enum CTALSA_MIXER_CTL {
	/* volume control mixers */
	MIXER_MASTER_P,
	MIXER_PCM_P,
	MIXER_LINEIN_P,
	MIXER_MIC_P,
	MIXER_SPDIFI_P,
	MIXER_SPDIFO_P,
	MIXER_WAVEF_P,
	MIXER_WAVER_P,
	MIXER_WAVEC_P,
	MIXER_WAVES_P,
	MIXER_MASTER_C,
	MIXER_PCM_C,
	MIXER_LINEIN_C,
	MIXER_MIC_C,
	MIXER_SPDIFI_C,

	/* switch control mixers */
	MIXER_PCM_C_S,
	MIXER_LINEIN_C_S,
	MIXER_MIC_C_S,
	MIXER_SPDIFI_C_S,
	MIXER_SPDIFO_P_S,
	MIXER_WAVEF_P_S,
	MIXER_WAVER_P_S,
	MIXER_WAVEC_P_S,
	MIXER_WAVES_P_S,
	MIXER_DIGITAL_IO_S,
	MIXER_IEC958_MASK,
	MIXER_IEC958_DEFAULT,
	MIXER_IEC958_STREAM,

	/* this should always be the last one */
	NUM_CTALSA_MIXERS
};

#define VOL_MIXER_START		MIXER_MASTER_P
#define VOL_MIXER_END		MIXER_SPDIFI_C
#define VOL_MIXER_NUM		(VOL_MIXER_END - VOL_MIXER_START + 1)
#define SWH_MIXER_START		MIXER_PCM_C_S
#define SWH_MIXER_END		MIXER_DIGITAL_IO_S
#define SWH_CAPTURE_START	MIXER_PCM_C_S
#define SWH_CAPTURE_END		MIXER_SPDIFI_C_S

#define CHN_NUM		2

struct ct_kcontrol_init {
	unsigned char ctl;
	char *name;
};

static struct ct_kcontrol_init
ct_kcontrol_init_table[NUM_CTALSA_MIXERS] = {
	[MIXER_MASTER_P] = {
		.ctl = 1,
		.name = "Master Playback Volume",
	},
	[MIXER_MASTER_C] = {
		.ctl = 1,
		.name = "Master Capture Volume",
	},
	[MIXER_PCM_P] = {
		.ctl = 1,
		.name = "PCM Playback Volume",
	},
	[MIXER_PCM_C] = {
		.ctl = 1,
		.name = "PCM Capture Volume",
	},
	[MIXER_LINEIN_P] = {
		.ctl = 1,
		.name = "Line Playback Volume",
	},
	[MIXER_LINEIN_C] = {
		.ctl = 1,
		.name = "Line Capture Volume",
	},
	[MIXER_MIC_P] = {
		.ctl = 1,
		.name = "Mic Playback Volume",
	},
	[MIXER_MIC_C] = {
		.ctl = 1,
		.name = "Mic Capture Volume",
	},
	[MIXER_SPDIFI_P] = {
		.ctl = 1,
		.name = "IEC958 Playback Volume",
	},
	[MIXER_SPDIFI_C] = {
		.ctl = 1,
		.name = "IEC958 Capture Volume",
	},
	[MIXER_SPDIFO_P] = {
		.ctl = 1,
		.name = "Digital Playback Volume",
	},
	[MIXER_WAVEF_P] = {
		.ctl = 1,
		.name = "Front Playback Volume",
	},
	[MIXER_WAVES_P] = {
		.ctl = 1,
		.name = "Side Playback Volume",
	},
	[MIXER_WAVEC_P] = {
		.ctl = 1,
		.name = "Center/LFE Playback Volume",
	},
	[MIXER_WAVER_P] = {
		.ctl = 1,
		.name = "Surround Playback Volume",
	},
	[MIXER_PCM_C_S] = {
		.ctl = 1,
		.name = "PCM Capture Switch",
	},
	[MIXER_LINEIN_C_S] = {
		.ctl = 1,
		.name = "Line Capture Switch",
	},
	[MIXER_MIC_C_S] = {
		.ctl = 1,
		.name = "Mic Capture Switch",
	},
	[MIXER_SPDIFI_C_S] = {
		.ctl = 1,
		.name = "IEC958 Capture Switch",
	},
	[MIXER_SPDIFO_P_S] = {
		.ctl = 1,
		.name = "Digital Playback Switch",
	},
	[MIXER_WAVEF_P_S] = {
		.ctl = 1,
		.name = "Front Playback Switch",
	},
	[MIXER_WAVES_P_S] = {
		.ctl = 1,
		.name = "Side Playback Switch",
	},
	[MIXER_WAVEC_P_S] = {
		.ctl = 1,
		.name = "Center/LFE Playback Switch",
	},
	[MIXER_WAVER_P_S] = {
		.ctl = 1,
		.name = "Surround Playback Switch",
	},
	[MIXER_DIGITAL_IO_S] = {
		.ctl = 0,
		.name = "Digit-IO Playback Switch",
	},
};

static void
ct_mixer_recording_select(struct ct_mixer *mixer, enum CT_AMIXER_CTL type);

static void
ct_mixer_recording_unselect(struct ct_mixer *mixer, enum CT_AMIXER_CTL type);

/* FIXME: this static looks like it would fail if more than one card was */
/* installed. */
static struct snd_kcontrol *kctls[2] = {NULL};

static enum CT_AMIXER_CTL get_amixer_index(enum CTALSA_MIXER_CTL alsa_index)
{
	switch (alsa_index) {
	case MIXER_MASTER_P:	return AMIXER_MASTER_F;
	case MIXER_MASTER_C:	return AMIXER_MASTER_F_C;
	case MIXER_PCM_P:	return AMIXER_PCM_F;
	case MIXER_PCM_C:
	case MIXER_PCM_C_S:	return AMIXER_PCM_F_C;
	case MIXER_LINEIN_P:	return AMIXER_LINEIN;
	case MIXER_LINEIN_C:
	case MIXER_LINEIN_C_S:	return AMIXER_LINEIN_C;
	case MIXER_MIC_P:	return AMIXER_MIC;
	case MIXER_MIC_C:
	case MIXER_MIC_C_S:	return AMIXER_MIC_C;
	case MIXER_SPDIFI_P:	return AMIXER_SPDIFI;
	case MIXER_SPDIFI_C:
	case MIXER_SPDIFI_C_S:	return AMIXER_SPDIFI_C;
	case MIXER_SPDIFO_P:	return AMIXER_SPDIFO;
	case MIXER_WAVEF_P:	return AMIXER_WAVE_F;
	case MIXER_WAVES_P:	return AMIXER_WAVE_S;
	case MIXER_WAVEC_P:	return AMIXER_WAVE_C;
	case MIXER_WAVER_P:	return AMIXER_WAVE_R;
	default:		return NUM_CT_AMIXERS;
	}
}

static enum CT_AMIXER_CTL get_recording_amixer(enum CT_AMIXER_CTL index)
{
	switch (index) {
	case AMIXER_MASTER_F:	return AMIXER_MASTER_F_C;
	case AMIXER_PCM_F:	return AMIXER_PCM_F_C;
	case AMIXER_SPDIFI:	return AMIXER_SPDIFI_C;
	case AMIXER_LINEIN:	return AMIXER_LINEIN_C;
	case AMIXER_MIC:	return AMIXER_MIC_C;
	default:		return NUM_CT_AMIXERS;
	}
}

static unsigned char
get_switch_state(struct ct_mixer *mixer, enum CTALSA_MIXER_CTL type)
{
	return (mixer->switch_state & (0x1 << (type - SWH_MIXER_START)))
		? 1 : 0;
}

static void
set_switch_state(struct ct_mixer *mixer,
		 enum CTALSA_MIXER_CTL type, unsigned char state)
{
	if (state)
		mixer->switch_state |= (0x1 << (type - SWH_MIXER_START));
	else
		mixer->switch_state &= ~(0x1 << (type - SWH_MIXER_START));
}

#if 0 /* not used */
/* Map integer value ranging from 0 to 65535 to 14-bit float value ranging
 * from 2^-6 to (1+1023/1024) */
static unsigned int uint16_to_float14(unsigned int x)
{
	unsigned int i;

	if (x < 17)
		return 0;

	x *= 2031;
	x /= 65535;
	x += 16;

	/* i <= 6 */
	for (i = 0; !(x & 0x400); i++)
		x <<= 1;

	x = (((7 - i) & 0x7) << 10) | (x & 0x3ff);

	return x;
}

static unsigned int float14_to_uint16(unsigned int x)
{
	unsigned int e;

	if (!x)
		return x;

	e = (x >> 10) & 0x7;
	x &= 0x3ff;
	x += 1024;
	x >>= (7 - e);
	x -= 16;
	x *= 65535;
	x /= 2031;

	return x;
}
#endif /* not used */

#define VOL_SCALE	0x1c
#define VOL_MAX		0x100

static const DECLARE_TLV_DB_SCALE(ct_vol_db_scale, -6400, 25, 1);

static int ct_alsa_mix_volume_info(struct snd_kcontrol *kcontrol,
				   struct snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 2;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = VOL_MAX;

	return 0;
}

static int ct_alsa_mix_volume_get(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_value *ucontrol)
{
	struct ct_atc *atc = snd_kcontrol_chip(kcontrol);
	enum CT_AMIXER_CTL type = get_amixer_index(kcontrol->private_value);
	struct amixer *amixer;
	int i, val;

	for (i = 0; i < 2; i++) {
		amixer = ((struct ct_mixer *)atc->mixer)->
						amixers[type*CHN_NUM+i];
		val = amixer->ops->get_scale(amixer) / VOL_SCALE;
		if (val < 0)
			val = 0;
		else if (val > VOL_MAX)
			val = VOL_MAX;
		ucontrol->value.integer.value[i] = val;
	}

	return 0;
}

static int ct_alsa_mix_volume_put(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_value *ucontrol)
{
	struct ct_atc *atc = snd_kcontrol_chip(kcontrol);
	struct ct_mixer *mixer = atc->mixer;
	enum CT_AMIXER_CTL type = get_amixer_index(kcontrol->private_value);
	struct amixer *amixer;
	int i, j, val, oval, change = 0;

	for (i = 0; i < 2; i++) {
		val = ucontrol->value.integer.value[i];
		if (val < 0)
			val = 0;
		else if (val > VOL_MAX)
			val = VOL_MAX;
		val *= VOL_SCALE;
		amixer = mixer->amixers[type*CHN_NUM+i];
		oval = amixer->ops->get_scale(amixer);
		if (val != oval) {
			amixer->ops->set_scale(amixer, val);
			amixer->ops->commit_write(amixer);
			change = 1;
			/* Synchronize Master/PCM playback AMIXERs. */
			if (AMIXER_MASTER_F == type || AMIXER_PCM_F == type) {
				for (j = 1; j < 4; j++) {
					amixer = mixer->
						amixers[(type+j)*CHN_NUM+i];
					amixer->ops->set_scale(amixer, val);
					amixer->ops->commit_write(amixer);
				}
			}
		}
	}

	return change;
}

static struct snd_kcontrol_new vol_ctl = {
	.access		= SNDRV_CTL_ELEM_ACCESS_READWRITE |
			  SNDRV_CTL_ELEM_ACCESS_TLV_READ,
	.iface		= SNDRV_CTL_ELEM_IFACE_MIXER,
	.info		= ct_alsa_mix_volume_info,
	.get		= ct_alsa_mix_volume_get,
	.put		= ct_alsa_mix_volume_put,
	.tlv		= { .p =  ct_vol_db_scale },
};

static int output_switch_info(struct snd_kcontrol *kcontrol,
			      struct snd_ctl_elem_info *info)
{
	static const char *const names[3] = {
	  "FP Headphones", "Headphones", "Speakers"
	};

	return snd_ctl_enum_info(info, 1, 3, names);
}

static int output_switch_get(struct snd_kcontrol *kcontrol,
			     struct snd_ctl_elem_value *ucontrol)
{
	struct ct_atc *atc = snd_kcontrol_chip(kcontrol);
	ucontrol->value.enumerated.item[0] = atc->output_switch_get(atc);
	return 0;
}

static int output_switch_put(struct snd_kcontrol *kcontrol,
			     struct snd_ctl_elem_value *ucontrol)
{
	struct ct_atc *atc = snd_kcontrol_chip(kcontrol);
	if (ucontrol->value.enumerated.item[0] > 2)
		return -EINVAL;
	return atc->output_switch_put(atc, ucontrol->value.enumerated.item[0]);
}

static struct snd_kcontrol_new output_ctl = {
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "Analog Output Playback Enum",
	.info = output_switch_info,
	.get = output_switch_get,
	.put = output_switch_put,
};

static int mic_source_switch_info(struct snd_kcontrol *kcontrol,
			      struct snd_ctl_elem_info *info)
{
	static const char *const names[3] = {
	  "Mic", "FP Mic", "Aux"
	};

	return snd_ctl_enum_info(info, 1, 3, names);
}

static int mic_source_switch_get(struct snd_kcontrol *kcontrol,
			     struct snd_ctl_elem_value *ucontrol)
{
	struct ct_atc *atc = snd_kcontrol_chip(kcontrol);
	ucontrol->value.enumerated.item[0] = atc->mic_source_switch_get(atc);
	return 0;
}

static int mic_source_switch_put(struct snd_kcontrol *kcontrol,
			     struct snd_ctl_elem_value *ucontrol)
{
	struct ct_atc *atc = snd_kcontrol_chip(kcontrol);
	if (ucontrol->value.enumerated.item[0] > 2)
		return -EINVAL;
	return atc->mic_source_switch_put(atc,
					ucontrol->value.enumerated.item[0]);
}

static struct snd_kcontrol_new mic_source_ctl = {
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "Mic Source Capture Enum",
	.info = mic_source_switch_info,
	.get = mic_source_switch_get,
	.put = mic_source_switch_put,
};

static void
do_line_mic_switch(struct ct_atc *atc, enum CTALSA_MIXER_CTL type)
{

	if (MIXER_LINEIN_C_S == type) {
		atc->select_line_in(atc);
		set_switch_state(atc->mixer, MIXER_MIC_C_S, 0);
		snd_ctl_notify(atc->card, SNDRV_CTL_EVENT_MASK_VALUE,
							&kctls[1]->id);
	} else if (MIXER_MIC_C_S == type) {
		atc->select_mic_in(atc);
		set_switch_state(atc->mixer, MIXER_LINEIN_C_S, 0);
		snd_ctl_notify(atc->card, SNDRV_CTL_EVENT_MASK_VALUE,
							&kctls[0]->id);
	}
}

static void
do_digit_io_switch(struct ct_atc *atc, int state)
{
	struct ct_mixer *mixer = atc->mixer;

	if (state) {
		atc->select_digit_io(atc);
		atc->spdif_out_unmute(atc,
				get_switch_state(mixer, MIXER_SPDIFO_P_S));
		atc->spdif_in_unmute(atc, 1);
		atc->line_in_unmute(atc, 0);
		return;
	}

	if (get_switch_state(mixer, MIXER_LINEIN_C_S))
		atc->select_line_in(atc);
	else if (get_switch_state(mixer, MIXER_MIC_C_S))
		atc->select_mic_in(atc);

	atc->spdif_out_unmute(atc, 0);
	atc->spdif_in_unmute(atc, 0);
	atc->line_in_unmute(atc, 1);
	return;
}

static void do_switch(struct ct_atc *atc, enum CTALSA_MIXER_CTL type, int state)
{
	struct ct_mixer *mixer = atc->mixer;
	struct capabilities cap = atc->capabilities(atc);

	/* Do changes in mixer. */
	if ((SWH_CAPTURE_START <= type) && (SWH_CAPTURE_END >= type)) {
		if (state) {
			ct_mixer_recording_select(mixer,
						  get_amixer_index(type));
		} else {
			ct_mixer_recording_unselect(mixer,
						    get_amixer_index(type));
		}
	}
	/* Do changes out of mixer. */
	if (!cap.dedicated_mic &&
	    (MIXER_LINEIN_C_S == type || MIXER_MIC_C_S == type)) {
		if (state)
			do_line_mic_switch(atc, type);
		atc->line_in_unmute(atc, state);
	} else if (cap.dedicated_mic && (MIXER_LINEIN_C_S == type))
		atc->line_in_unmute(atc, state);
	else if (cap.dedicated_mic && (MIXER_MIC_C_S == type))
		atc->mic_unmute(atc, state);
	else if (MIXER_SPDIFI_C_S == type)
		atc->spdif_in_unmute(atc, state);
	else if (MIXER_WAVEF_P_S == type)
		atc->line_front_unmute(atc, state);
	else if (MIXER_WAVES_P_S == type)
		atc->line_surround_unmute(atc, state);
	else if (MIXER_WAVEC_P_S == type)
		atc->line_clfe_unmute(atc, state);
	else if (MIXER_WAVER_P_S == type)
		atc->line_rear_unmute(atc, state);
	else if (MIXER_SPDIFO_P_S == type)
		atc->spdif_out_unmute(atc, state);
	else if (MIXER_DIGITAL_IO_S == type)
		do_digit_io_switch(atc, state);

	return;
}

static int ct_alsa_mix_switch_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;
	uinfo->value.integer.step = 1;

	return 0;
}

static int ct_alsa_mix_switch_get(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_value *ucontrol)
{
	struct ct_mixer *mixer =
		((struct ct_atc *)snd_kcontrol_chip(kcontrol))->mixer;
	enum CTALSA_MIXER_CTL type = kcontrol->private_value;

	ucontrol->value.integer.value[0] = get_switch_state(mixer, type);
	return 0;
}

static int ct_alsa_mix_switch_put(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_value *ucontrol)
{
	struct ct_atc *atc = snd_kcontrol_chip(kcontrol);
	struct ct_mixer *mixer = atc->mixer;
	enum CTALSA_MIXER_CTL type = kcontrol->private_value;
	int state;

	state = ucontrol->value.integer.value[0];
	if (get_switch_state(mixer, type) == state)
		return 0;

	set_switch_state(mixer, type, state);
	do_switch(atc, type, state);

	return 1;
}

static struct snd_kcontrol_new swh_ctl = {
	.access		= SNDRV_CTL_ELEM_ACCESS_READWRITE,
	.iface		= SNDRV_CTL_ELEM_IFACE_MIXER,
	.info		= ct_alsa_mix_switch_info,
	.get		= ct_alsa_mix_switch_get,
	.put		= ct_alsa_mix_switch_put
};

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

static int ct_spdif_get_mask(struct snd_kcontrol *kcontrol,
			     struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.iec958.status[0] = 0xff;
	ucontrol->value.iec958.status[1] = 0xff;
	ucontrol->value.iec958.status[2] = 0xff;
	ucontrol->value.iec958.status[3] = 0xff;
	return 0;
}

static int ct_spdif_get(struct snd_kcontrol *kcontrol,
			struct snd_ctl_elem_value *ucontrol)
{
	struct ct_atc *atc = snd_kcontrol_chip(kcontrol);
	unsigned int status;

	atc->spdif_out_get_status(atc, &status);

	if (status == 0)
		status = SNDRV_PCM_DEFAULT_CON_SPDIF;

	ucontrol->value.iec958.status[0] = (status >> 0) & 0xff;
	ucontrol->value.iec958.status[1] = (status >> 8) & 0xff;
	ucontrol->value.iec958.status[2] = (status >> 16) & 0xff;
	ucontrol->value.iec958.status[3] = (status >> 24) & 0xff;

	return 0;
}

static int ct_spdif_put(struct snd_kcontrol *kcontrol,
			struct snd_ctl_elem_value *ucontrol)
{
	struct ct_atc *atc = snd_kcontrol_chip(kcontrol);
	int change;
	unsigned int status, old_status;

	status = (ucontrol->value.iec958.status[0] << 0) |
		 (ucontrol->value.iec958.status[1] << 8) |
		 (ucontrol->value.iec958.status[2] << 16) |
		 (ucontrol->value.iec958.status[3] << 24);

	atc->spdif_out_get_status(atc, &old_status);
	change = (old_status != status);
	if (change)
		atc->spdif_out_set_status(atc, status);

	return change;
}

static struct snd_kcontrol_new iec958_mask_ctl = {
	.access		= SNDRV_CTL_ELEM_ACCESS_READ,
	.iface		= SNDRV_CTL_ELEM_IFACE_PCM,
	.name		= SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK),
	.count		= 1,
	.info		= ct_spdif_info,
	.get		= ct_spdif_get_mask,
	.private_value	= MIXER_IEC958_MASK
};

static struct snd_kcontrol_new iec958_default_ctl = {
	.iface		= SNDRV_CTL_ELEM_IFACE_PCM,
	.name		= SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
	.count		= 1,
	.info		= ct_spdif_info,
	.get		= ct_spdif_get,
	.put		= ct_spdif_put,
	.private_value	= MIXER_IEC958_DEFAULT
};

static struct snd_kcontrol_new iec958_ctl = {
	.access		= SNDRV_CTL_ELEM_ACCESS_READWRITE,
	.iface		= SNDRV_CTL_ELEM_IFACE_PCM,
	.name		= SNDRV_CTL_NAME_IEC958("", PLAYBACK, PCM_STREAM),
	.count		= 1,
	.info		= ct_spdif_info,
	.get		= ct_spdif_get,
	.put		= ct_spdif_put,
	.private_value	= MIXER_IEC958_STREAM
};

#define NUM_IEC958_CTL 3

static int
ct_mixer_kcontrol_new(struct ct_mixer *mixer, struct snd_kcontrol_new *new)
{
	struct snd_kcontrol *kctl;
	int err;

	kctl = snd_ctl_new1(new, mixer->atc);
	if (!kctl)
		return -ENOMEM;

	if (SNDRV_CTL_ELEM_IFACE_PCM == kctl->id.iface)
		kctl->id.device = IEC958;

	err = snd_ctl_add(mixer->atc->card, kctl);
	if (err)
		return err;

	switch (new->private_value) {
	case MIXER_LINEIN_C_S:
		kctls[0] = kctl; break;
	case MIXER_MIC_C_S:
		kctls[1] = kctl; break;
	default:
		break;
	}

	return 0;
}

static int ct_mixer_kcontrols_create(struct ct_mixer *mixer)
{
	enum CTALSA_MIXER_CTL type;
	struct ct_atc *atc = mixer->atc;
	struct capabilities cap = atc->capabilities(atc);
	int err;

	/* Create snd kcontrol instances on demand */
	for (type = VOL_MIXER_START; type <= VOL_MIXER_END; type++) {
		if (ct_kcontrol_init_table[type].ctl) {
			vol_ctl.name = ct_kcontrol_init_table[type].name;
			vol_ctl.private_value = (unsigned long)type;
			err = ct_mixer_kcontrol_new(mixer, &vol_ctl);
			if (err)
				return err;
		}
	}

	ct_kcontrol_init_table[MIXER_DIGITAL_IO_S].ctl = cap.digit_io_switch;

	for (type = SWH_MIXER_START; type <= SWH_MIXER_END; type++) {
		if (ct_kcontrol_init_table[type].ctl) {
			swh_ctl.name = ct_kcontrol_init_table[type].name;
			swh_ctl.private_value = (unsigned long)type;
			err = ct_mixer_kcontrol_new(mixer, &swh_ctl);
			if (err)
				return err;
		}
	}

	err = ct_mixer_kcontrol_new(mixer, &iec958_mask_ctl);
	if (err)
		return err;

	err = ct_mixer_kcontrol_new(mixer, &iec958_default_ctl);
	if (err)
		return err;

	err = ct_mixer_kcontrol_new(mixer, &iec958_ctl);
	if (err)
		return err;

	if (cap.output_switch) {
		err = ct_mixer_kcontrol_new(mixer, &output_ctl);
		if (err)
			return err;
	}

	if (cap.mic_source_switch) {
		err = ct_mixer_kcontrol_new(mixer, &mic_source_ctl);
		if (err)
			return err;
	}
	atc->line_front_unmute(atc, 1);
	set_switch_state(mixer, MIXER_WAVEF_P_S, 1);
	atc->line_surround_unmute(atc, 0);
	set_switch_state(mixer, MIXER_WAVES_P_S, 0);
	atc->line_clfe_unmute(atc, 0);
	set_switch_state(mixer, MIXER_WAVEC_P_S, 0);
	atc->line_rear_unmute(atc, 0);
	set_switch_state(mixer, MIXER_WAVER_P_S, 0);
	atc->spdif_out_unmute(atc, 0);
	set_switch_state(mixer, MIXER_SPDIFO_P_S, 0);
	atc->line_in_unmute(atc, 0);
	if (cap.dedicated_mic)
		atc->mic_unmute(atc, 0);
	atc->spdif_in_unmute(atc, 0);
	set_switch_state(mixer, MIXER_PCM_C_S, 0);
	set_switch_state(mixer, MIXER_LINEIN_C_S, 0);
	set_switch_state(mixer, MIXER_SPDIFI_C_S, 0);

	return 0;
}

static void
ct_mixer_recording_select(struct ct_mixer *mixer, enum CT_AMIXER_CTL type)
{
	struct amixer *amix_d;
	struct sum *sum_c;
	int i;

	for (i = 0; i < 2; i++) {
		amix_d = mixer->amixers[type*CHN_NUM+i];
		sum_c = mixer->sums[SUM_IN_F_C*CHN_NUM+i];
		amix_d->ops->set_sum(amix_d, sum_c);
		amix_d->ops->commit_write(amix_d);
	}
}

static void
ct_mixer_recording_unselect(struct ct_mixer *mixer, enum CT_AMIXER_CTL type)
{
	struct amixer *amix_d;
	int i;

	for (i = 0; i < 2; i++) {
		amix_d = mixer->amixers[type*CHN_NUM+i];
		amix_d->ops->set_sum(amix_d, NULL);
		amix_d->ops->commit_write(amix_d);
	}
}

static int ct_mixer_get_resources(struct ct_mixer *mixer)
{
	struct sum_mgr *sum_mgr;
	struct sum *sum;
	struct sum_desc sum_desc = {0};
	struct amixer_mgr *amixer_mgr;
	struct amixer *amixer;
	struct amixer_desc am_desc = {0};
	int err;
	int i;

	/* Allocate sum resources for mixer obj */
	sum_mgr = (struct sum_mgr *)mixer->atc->rsc_mgrs[SUM];
	sum_desc.msr = mixer->atc->msr;
	for (i = 0; i < (NUM_CT_SUMS * CHN_NUM); i++) {
		err = sum_mgr->get_sum(sum_mgr, &sum_desc, &sum);
		if (err) {
			dev_err(mixer->atc->card->dev,
				"Failed to get sum resources for front output!\n");
			break;
		}
		mixer->sums[i] = sum;
	}
	if (err)
		goto error1;

	/* Allocate amixer resources for mixer obj */
	amixer_mgr = (struct amixer_mgr *)mixer->atc->rsc_mgrs[AMIXER];
	am_desc.msr = mixer->atc->msr;
	for (i = 0; i < (NUM_CT_AMIXERS * CHN_NUM); i++) {
		err = amixer_mgr->get_amixer(amixer_mgr, &am_desc, &amixer);
		if (err) {
			dev_err(mixer->atc->card->dev,
				"Failed to get amixer resources for mixer obj!\n");
			break;
		}
		mixer->amixers[i] = amixer;
	}
	if (err)
		goto error2;

	return 0;

error2:
	for (i = 0; i < (NUM_CT_AMIXERS * CHN_NUM); i++) {
		if (NULL != mixer->amixers[i]) {
			amixer = mixer->amixers[i];
			amixer_mgr->put_amixer(amixer_mgr, amixer);
			mixer->amixers[i] = NULL;
		}
	}
error1:
	for (i = 0; i < (NUM_CT_SUMS * CHN_NUM); i++) {
		if (NULL != mixer->sums[i]) {
			sum_mgr->put_sum(sum_mgr, (struct sum *)mixer->sums[i]);
			mixer->sums[i] = NULL;
		}
	}

	return err;
}

static int ct_mixer_get_mem(struct ct_mixer **rmixer)
{
	struct ct_mixer *mixer;
	int err;

	*rmixer = NULL;
	/* Allocate mem for mixer obj */
	mixer = kzalloc(sizeof(*mixer), GFP_KERNEL);
	if (!mixer)
		return -ENOMEM;

	mixer->amixers = kzalloc(sizeof(void *)*(NUM_CT_AMIXERS*CHN_NUM),
				 GFP_KERNEL);
	if (!mixer->amixers) {
		err = -ENOMEM;
		goto error1;
	}
	mixer->sums = kzalloc(sizeof(void *)*(NUM_CT_SUMS*CHN_NUM), GFP_KERNEL);
	if (!mixer->sums) {
		err = -ENOMEM;
		goto error2;
	}

	*rmixer = mixer;
	return 0;

error2:
	kfree(mixer->amixers);
error1:
	kfree(mixer);
	return err;
}

static int ct_mixer_topology_build(struct ct_mixer *mixer)
{
	struct sum *sum;
	struct amixer *amix_d, *amix_s;
	enum CT_AMIXER_CTL i, j;

	/* Build topology from destination to source */

	/* Set up Master mixer */
	for (i = AMIXER_MASTER_F, j = SUM_IN_F;
					i <= AMIXER_MASTER_S; i++, j++) {
		amix_d = mixer->amixers[i*CHN_NUM];
		sum = mixer->sums[j*CHN_NUM];
		amix_d->ops->setup(amix_d, &sum->rsc, INIT_VOL, NULL);
		amix_d = mixer->amixers[i*CHN_NUM+1];
		sum = mixer->sums[j*CHN_NUM+1];
		amix_d->ops->setup(amix_d, &sum->rsc, INIT_VOL, NULL);
	}

	/* Set up Wave-out mixer */
	for (i = AMIXER_WAVE_F, j = AMIXER_MASTER_F;
					i <= AMIXER_WAVE_S; i++, j++) {
		amix_d = mixer->amixers[i*CHN_NUM];
		amix_s = mixer->amixers[j*CHN_NUM];
		amix_d->ops->setup(amix_d, &amix_s->rsc, INIT_VOL, NULL);
		amix_d = mixer->amixers[i*CHN_NUM+1];
		amix_s = mixer->amixers[j*CHN_NUM+1];
		amix_d->ops->setup(amix_d, &amix_s->rsc, INIT_VOL, NULL);
	}

	/* Set up S/PDIF-out mixer */
	amix_d = mixer->amixers[AMIXER_SPDIFO*CHN_NUM];
	amix_s = mixer->amixers[AMIXER_MASTER_F*CHN_NUM];
	amix_d->ops->setup(amix_d, &amix_s->rsc, INIT_VOL, NULL);
	amix_d = mixer->amixers[AMIXER_SPDIFO*CHN_NUM+1];
	amix_s = mixer->amixers[AMIXER_MASTER_F*CHN_NUM+1];
	amix_d->ops->setup(amix_d, &amix_s->rsc, INIT_VOL, NULL);

	/* Set up PCM-in mixer */
	for (i = AMIXER_PCM_F, j = SUM_IN_F; i <= AMIXER_PCM_S; i++, j++) {
		amix_d = mixer->amixers[i*CHN_NUM];
		sum = mixer->sums[j*CHN_NUM];
		amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
		amix_d = mixer->amixers[i*CHN_NUM+1];
		sum = mixer->sums[j*CHN_NUM+1];
		amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
	}

	/* Set up Line-in mixer */
	amix_d = mixer->amixers[AMIXER_LINEIN*CHN_NUM];
	sum = mixer->sums[SUM_IN_F*CHN_NUM];
	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
	amix_d = mixer->amixers[AMIXER_LINEIN*CHN_NUM+1];
	sum = mixer->sums[SUM_IN_F*CHN_NUM+1];
	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);

	/* Set up Mic-in mixer */
	amix_d = mixer->amixers[AMIXER_MIC*CHN_NUM];
	sum = mixer->sums[SUM_IN_F*CHN_NUM];
	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
	amix_d = mixer->amixers[AMIXER_MIC*CHN_NUM+1];
	sum = mixer->sums[SUM_IN_F*CHN_NUM+1];
	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);

	/* Set up S/PDIF-in mixer */
	amix_d = mixer->amixers[AMIXER_SPDIFI*CHN_NUM];
	sum = mixer->sums[SUM_IN_F*CHN_NUM];
	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
	amix_d = mixer->amixers[AMIXER_SPDIFI*CHN_NUM+1];
	sum = mixer->sums[SUM_IN_F*CHN_NUM+1];
	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);

	/* Set up Master recording mixer */
	amix_d = mixer->amixers[AMIXER_MASTER_F_C*CHN_NUM];
	sum = mixer->sums[SUM_IN_F_C*CHN_NUM];
	amix_d->ops->setup(amix_d, &sum->rsc, INIT_VOL, NULL);
	amix_d = mixer->amixers[AMIXER_MASTER_F_C*CHN_NUM+1];
	sum = mixer->sums[SUM_IN_F_C*CHN_NUM+1];
	amix_d->ops->setup(amix_d, &sum->rsc, INIT_VOL, NULL);

	/* Set up PCM-in recording mixer */
	amix_d = mixer->amixers[AMIXER_PCM_F_C*CHN_NUM];
	sum = mixer->sums[SUM_IN_F_C*CHN_NUM];
	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
	amix_d = mixer->amixers[AMIXER_PCM_F_C*CHN_NUM+1];
	sum = mixer->sums[SUM_IN_F_C*CHN_NUM+1];
	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);

	/* Set up Line-in recording mixer */
	amix_d = mixer->amixers[AMIXER_LINEIN_C*CHN_NUM];
	sum = mixer->sums[SUM_IN_F_C*CHN_NUM];
	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
	amix_d = mixer->amixers[AMIXER_LINEIN_C*CHN_NUM+1];
	sum = mixer->sums[SUM_IN_F_C*CHN_NUM+1];
	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);

	/* Set up Mic-in recording mixer */
	amix_d = mixer->amixers[AMIXER_MIC_C*CHN_NUM];
	sum = mixer->sums[SUM_IN_F_C*CHN_NUM];
	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
	amix_d = mixer->amixers[AMIXER_MIC_C*CHN_NUM+1];
	sum = mixer->sums[SUM_IN_F_C*CHN_NUM+1];
	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);

	/* Set up S/PDIF-in recording mixer */
	amix_d = mixer->amixers[AMIXER_SPDIFI_C*CHN_NUM];
	sum = mixer->sums[SUM_IN_F_C*CHN_NUM];
	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
	amix_d = mixer->amixers[AMIXER_SPDIFI_C*CHN_NUM+1];
	sum = mixer->sums[SUM_IN_F_C*CHN_NUM+1];
	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);

	return 0;
}

static int mixer_set_input_port(struct amixer *amixer, struct rsc *rsc)
{
	amixer->ops->set_input(amixer, rsc);
	amixer->ops->commit_write(amixer);

	return 0;
}

static enum CT_AMIXER_CTL port_to_amixer(enum MIXER_PORT_T type)
{
	switch (type) {
	case MIX_WAVE_FRONT:	return AMIXER_WAVE_F;
	case MIX_WAVE_SURROUND:	return AMIXER_WAVE_S;
	case MIX_WAVE_CENTLFE:	return AMIXER_WAVE_C;
	case MIX_WAVE_REAR:	return AMIXER_WAVE_R;
	case MIX_PCMO_FRONT:	return AMIXER_MASTER_F_C;
	case MIX_SPDIF_OUT:	return AMIXER_SPDIFO;
	case MIX_LINE_IN:	return AMIXER_LINEIN;
	case MIX_MIC_IN:	return AMIXER_MIC;
	case MIX_SPDIF_IN:	return AMIXER_SPDIFI;
	case MIX_PCMI_FRONT:	return AMIXER_PCM_F;
	case MIX_PCMI_SURROUND:	return AMIXER_PCM_S;
	case MIX_PCMI_CENTLFE:	return AMIXER_PCM_C;
	case MIX_PCMI_REAR:	return AMIXER_PCM_R;
	default: 		return 0;
	}
}

static int mixer_get_output_ports(struct ct_mixer *mixer,
				  enum MIXER_PORT_T type,
				  struct rsc **rleft, struct rsc **rright)
{
	enum CT_AMIXER_CTL amix = port_to_amixer(type);

	if (NULL != rleft)
		*rleft = &((struct amixer *)mixer->amixers[amix*CHN_NUM])->rsc;

	if (NULL != rright)
		*rright =
			&((struct amixer *)mixer->amixers[amix*CHN_NUM+1])->rsc;

	return 0;
}

static int mixer_set_input_left(struct ct_mixer *mixer,
				enum MIXER_PORT_T type, struct rsc *rsc)
{
	enum CT_AMIXER_CTL amix = port_to_amixer(type);

	mixer_set_input_port(mixer->amixers[amix*CHN_NUM], rsc);
	amix = get_recording_amixer(amix);
	if (amix < NUM_CT_AMIXERS)
		mixer_set_input_port(mixer->amixers[amix*CHN_NUM], rsc);

	return 0;
}

static int
mixer_set_input_right(struct ct_mixer *mixer,
		      enum MIXER_PORT_T type, struct rsc *rsc)
{
	enum CT_AMIXER_CTL amix = port_to_amixer(type);

	mixer_set_input_port(mixer->amixers[amix*CHN_NUM+1], rsc);
	amix = get_recording_amixer(amix);
	if (amix < NUM_CT_AMIXERS)
		mixer_set_input_port(mixer->amixers[amix*CHN_NUM+1], rsc);

	return 0;
}

#ifdef CONFIG_PM_SLEEP
static int mixer_resume(struct ct_mixer *mixer)
{
	int i, state;
	struct amixer *amixer;

	/* resume topology and volume gain. */
	for (i = 0; i < NUM_CT_AMIXERS*CHN_NUM; i++) {
		amixer = mixer->amixers[i];
		amixer->ops->commit_write(amixer);
	}

	/* resume switch state. */
	for (i = SWH_MIXER_START; i <= SWH_MIXER_END; i++) {
		state = get_switch_state(mixer, i);
		do_switch(mixer->atc, i, state);
	}

	return 0;
}
#endif

int ct_mixer_destroy(struct ct_mixer *mixer)
{
	struct sum_mgr *sum_mgr = (struct sum_mgr *)mixer->atc->rsc_mgrs[SUM];
	struct amixer_mgr *amixer_mgr =
			(struct amixer_mgr *)mixer->atc->rsc_mgrs[AMIXER];
	struct amixer *amixer;
	int i = 0;

	/* Release amixer resources */
	for (i = 0; i < (NUM_CT_AMIXERS * CHN_NUM); i++) {
		if (NULL != mixer->amixers[i]) {
			amixer = mixer->amixers[i];
			amixer_mgr->put_amixer(amixer_mgr, amixer);
		}
	}

	/* Release sum resources */
	for (i = 0; i < (NUM_CT_SUMS * CHN_NUM); i++) {
		if (NULL != mixer->sums[i])
			sum_mgr->put_sum(sum_mgr, (struct sum *)mixer->sums[i]);
	}

	/* Release mem assigned to mixer object */
	kfree(mixer->sums);
	kfree(mixer->amixers);
	kfree(mixer);

	return 0;
}

int ct_mixer_create(struct ct_atc *atc, struct ct_mixer **rmixer)
{
	struct ct_mixer *mixer;
	int err;

	*rmixer = NULL;

	/* Allocate mem for mixer obj */
	err = ct_mixer_get_mem(&mixer);
	if (err)
		return err;

	mixer->switch_state = 0;
	mixer->atc = atc;
	/* Set operations */
	mixer->get_output_ports = mixer_get_output_ports;
	mixer->set_input_left = mixer_set_input_left;
	mixer->set_input_right = mixer_set_input_right;
#ifdef CONFIG_PM_SLEEP
	mixer->resume = mixer_resume;
#endif

	/* Allocate chip resources for mixer obj */
	err = ct_mixer_get_resources(mixer);
	if (err)
		goto error;

	/* Build internal mixer topology */
	ct_mixer_topology_build(mixer);

	*rmixer = mixer;

	return 0;

error:
	ct_mixer_destroy(mixer);
	return err;
}

int ct_alsa_mix_create(struct ct_atc *atc,
		       enum CTALSADEVS device,
		       const char *device_name)
{
	int err;

	/* Create snd kcontrol instances on demand */
	/* vol_ctl.device = swh_ctl.device = device; */ /* better w/ device 0 */
	err = ct_mixer_kcontrols_create((struct ct_mixer *)atc->mixer);
	if (err)
		return err;

	strcpy(atc->card->mixername, device_name);

	return 0;
}