cs4236_lib.c 37.4 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
/*
 *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
 *  Routines for control of CS4235/4236B/4237B/4238B/4239 chips
 *
 *  Note:
 *     -----
 *
 *  Bugs:
 *     -----
 *
 *   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; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   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.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 */

/*
 *  Indirect control registers (CS4236B+)
 * 
 *  C0
 *     D8: WSS reset (all chips)
 *
 *  C1 (all chips except CS4236)
 *     D7-D5: version 
 *     D4-D0: chip id
 *             11101 - CS4235
 *             01011 - CS4236B
 *             01000 - CS4237B
 *             01001 - CS4238B
 *             11110 - CS4239
 *
 *  C2
 *     D7-D4: 3D Space (CS4235,CS4237B,CS4238B,CS4239)
 *     D3-D0: 3D Center (CS4237B); 3D Volume (CS4238B)
 * 
 *  C3
 *     D7: 3D Enable (CS4237B)
 *     D6: 3D Mono Enable (CS4237B)
 *     D5: 3D Serial Output (CS4237B,CS4238B)
 *     D4: 3D Enable (CS4235,CS4238B,CS4239)
 *
 *  C4
 *     D7: consumer serial port enable (CS4237B,CS4238B)
 *     D6: channels status block reset (CS4237B,CS4238B)
 *     D5: user bit in sub-frame of digital audio data (CS4237B,CS4238B)
 *     D4: validity bit bit in sub-frame of digital audio data (CS4237B,CS4238B)
 * 
 *  C5  lower channel status (digital serial data description) (CS4237B,CS4238B)
 *     D7-D6: first two bits of category code
 *     D5: lock
 *     D4-D3: pre-emphasis (0 = none, 1 = 50/15us)
 *     D2: copy/copyright (0 = copy inhibited)
 *     D1: 0 = digital audio / 1 = non-digital audio
 *     
 *  C6  upper channel status (digital serial data description) (CS4237B,CS4238B)
 *     D7-D6: sample frequency (0 = 44.1kHz)
 *     D5: generation status (0 = no indication, 1 = original/commercially precaptureed data)
 *     D4-D0: category code (upper bits)
 *
 *  C7  reserved (must write 0)
 *
 *  C8  wavetable control
 *     D7: volume control interrupt enable (CS4235,CS4239)
 *     D6: hardware volume control format (CS4235,CS4239)
 *     D3: wavetable serial port enable (all chips)
 *     D2: DSP serial port switch (all chips)
 *     D1: disable MCLK (all chips)
 *     D0: force BRESET low (all chips)
 *
 */

#include <linux/io.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/time.h>
#include <linux/wait.h>
#include <sound/core.h>
#include <sound/wss.h>
#include <sound/asoundef.h>
#include <sound/initval.h>
#include <sound/tlv.h>

/*
 *
 */

static unsigned char snd_cs4236_ext_map[18] = {
	/* CS4236_LEFT_LINE */		0xff,
	/* CS4236_RIGHT_LINE */		0xff,
	/* CS4236_LEFT_MIC */		0xdf,
	/* CS4236_RIGHT_MIC */		0xdf,
	/* CS4236_LEFT_MIX_CTRL */	0xe0 | 0x18,
	/* CS4236_RIGHT_MIX_CTRL */	0xe0,
	/* CS4236_LEFT_FM */		0xbf,
	/* CS4236_RIGHT_FM */		0xbf,
	/* CS4236_LEFT_DSP */		0xbf,
	/* CS4236_RIGHT_DSP */		0xbf,
	/* CS4236_RIGHT_LOOPBACK */	0xbf,
	/* CS4236_DAC_MUTE */		0xe0,
	/* CS4236_ADC_RATE */		0x01,	/* 48kHz */
	/* CS4236_DAC_RATE */		0x01,	/* 48kHz */
	/* CS4236_LEFT_MASTER */	0xbf,
	/* CS4236_RIGHT_MASTER */	0xbf,
	/* CS4236_LEFT_WAVE */		0xbf,
	/* CS4236_RIGHT_WAVE */		0xbf
};

/*
 *
 */

static void snd_cs4236_ctrl_out(struct snd_wss *chip,
				unsigned char reg, unsigned char val)
{
	outb(reg, chip->cport + 3);
	outb(chip->cimage[reg] = val, chip->cport + 4);
}

static unsigned char snd_cs4236_ctrl_in(struct snd_wss *chip, unsigned char reg)
{
	outb(reg, chip->cport + 3);
	return inb(chip->cport + 4);
}

/*
 *  PCM
 */

#define CLOCKS 8

static struct snd_ratnum clocks[CLOCKS] = {
	{ .num = 16934400, .den_min = 353, .den_max = 353, .den_step = 1 },
	{ .num = 16934400, .den_min = 529, .den_max = 529, .den_step = 1 },
	{ .num = 16934400, .den_min = 617, .den_max = 617, .den_step = 1 },
	{ .num = 16934400, .den_min = 1058, .den_max = 1058, .den_step = 1 },
	{ .num = 16934400, .den_min = 1764, .den_max = 1764, .den_step = 1 },
	{ .num = 16934400, .den_min = 2117, .den_max = 2117, .den_step = 1 },
	{ .num = 16934400, .den_min = 2558, .den_max = 2558, .den_step = 1 },
	{ .num = 16934400/16, .den_min = 21, .den_max = 192, .den_step = 1 }
};

static struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks = {
	.nrats = CLOCKS,
	.rats = clocks,
};

static int snd_cs4236_xrate(struct snd_pcm_runtime *runtime)
{
	return snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
					     &hw_constraints_clocks);
}

static unsigned char divisor_to_rate_register(unsigned int divisor)
{
	switch (divisor) {
	case 353:	return 1;
	case 529:	return 2;
	case 617:	return 3;
	case 1058:	return 4;
	case 1764:	return 5;
	case 2117:	return 6;
	case 2558:	return 7;
	default:
		if (divisor < 21 || divisor > 192) {
			snd_BUG();
			return 192;
		}
		return divisor;
	}
}

static void snd_cs4236_playback_format(struct snd_wss *chip,
				       struct snd_pcm_hw_params *params,
				       unsigned char pdfr)
{
	unsigned long flags;
	unsigned char rate = divisor_to_rate_register(params->rate_den);
	
	spin_lock_irqsave(&chip->reg_lock, flags);
	/* set fast playback format change and clean playback FIFO */
	snd_wss_out(chip, CS4231_ALT_FEATURE_1,
		    chip->image[CS4231_ALT_FEATURE_1] | 0x10);
	snd_wss_out(chip, CS4231_PLAYBK_FORMAT, pdfr & 0xf0);
	snd_wss_out(chip, CS4231_ALT_FEATURE_1,
		    chip->image[CS4231_ALT_FEATURE_1] & ~0x10);
	snd_cs4236_ext_out(chip, CS4236_DAC_RATE, rate);
	spin_unlock_irqrestore(&chip->reg_lock, flags);
}

static void snd_cs4236_capture_format(struct snd_wss *chip,
				      struct snd_pcm_hw_params *params,
				      unsigned char cdfr)
{
	unsigned long flags;
	unsigned char rate = divisor_to_rate_register(params->rate_den);
	
	spin_lock_irqsave(&chip->reg_lock, flags);
	/* set fast capture format change and clean capture FIFO */
	snd_wss_out(chip, CS4231_ALT_FEATURE_1,
		    chip->image[CS4231_ALT_FEATURE_1] | 0x20);
	snd_wss_out(chip, CS4231_REC_FORMAT, cdfr & 0xf0);
	snd_wss_out(chip, CS4231_ALT_FEATURE_1,
		    chip->image[CS4231_ALT_FEATURE_1] & ~0x20);
	snd_cs4236_ext_out(chip, CS4236_ADC_RATE, rate);
	spin_unlock_irqrestore(&chip->reg_lock, flags);
}

#ifdef CONFIG_PM

static void snd_cs4236_suspend(struct snd_wss *chip)
{
	int reg;
	unsigned long flags;
	
	spin_lock_irqsave(&chip->reg_lock, flags);
	for (reg = 0; reg < 32; reg++)
		chip->image[reg] = snd_wss_in(chip, reg);
	for (reg = 0; reg < 18; reg++)
		chip->eimage[reg] = snd_cs4236_ext_in(chip, CS4236_I23VAL(reg));
	for (reg = 2; reg < 9; reg++)
		chip->cimage[reg] = snd_cs4236_ctrl_in(chip, reg);
	spin_unlock_irqrestore(&chip->reg_lock, flags);
}

static void snd_cs4236_resume(struct snd_wss *chip)
{
	int reg;
	unsigned long flags;
	
	snd_wss_mce_up(chip);
	spin_lock_irqsave(&chip->reg_lock, flags);
	for (reg = 0; reg < 32; reg++) {
		switch (reg) {
		case CS4236_EXT_REG:
		case CS4231_VERSION:
		case 27:	/* why? CS4235 - master left */
		case 29:	/* why? CS4235 - master right */
			break;
		default:
			snd_wss_out(chip, reg, chip->image[reg]);
			break;
		}
	}
	for (reg = 0; reg < 18; reg++)
		snd_cs4236_ext_out(chip, CS4236_I23VAL(reg), chip->eimage[reg]);
	for (reg = 2; reg < 9; reg++) {
		switch (reg) {
		case 7:
			break;
		default:
			snd_cs4236_ctrl_out(chip, reg, chip->cimage[reg]);
		}
	}
	spin_unlock_irqrestore(&chip->reg_lock, flags);
	snd_wss_mce_down(chip);
}

#endif /* CONFIG_PM */
/*
 * This function does no fail if the chip is not CS4236B or compatible.
 * It just an equivalent to the snd_wss_create() then.
 */
int snd_cs4236_create(struct snd_card *card,
		      unsigned long port,
		      unsigned long cport,
		      int irq, int dma1, int dma2,
		      unsigned short hardware,
		      unsigned short hwshare,
		      struct snd_wss **rchip)
{
	struct snd_wss *chip;
	unsigned char ver1, ver2;
	unsigned int reg;
	int err;

	*rchip = NULL;
	if (hardware == WSS_HW_DETECT)
		hardware = WSS_HW_DETECT3;

	err = snd_wss_create(card, port, cport,
			     irq, dma1, dma2, hardware, hwshare, &chip);
	if (err < 0)
		return err;

	if ((chip->hardware & WSS_HW_CS4236B_MASK) == 0) {
		snd_printd("chip is not CS4236+, hardware=0x%x\n",
			   chip->hardware);
		*rchip = chip;
		return 0;
	}
#if 0
	{
		int idx;
		for (idx = 0; idx < 8; idx++)
			snd_printk(KERN_DEBUG "CD%i = 0x%x\n",
				   idx, inb(chip->cport + idx));
		for (idx = 0; idx < 9; idx++)
			snd_printk(KERN_DEBUG "C%i = 0x%x\n",
				   idx, snd_cs4236_ctrl_in(chip, idx));
	}
#endif
	if (cport < 0x100 || cport == SNDRV_AUTO_PORT) {
		snd_printk(KERN_ERR "please, specify control port "
			   "for CS4236+ chips\n");
		snd_device_free(card, chip);
		return -ENODEV;
	}
	ver1 = snd_cs4236_ctrl_in(chip, 1);
	ver2 = snd_cs4236_ext_in(chip, CS4236_VERSION);
	snd_printdd("CS4236: [0x%lx] C1 (version) = 0x%x, ext = 0x%x\n",
			cport, ver1, ver2);
	if (ver1 != ver2) {
		snd_printk(KERN_ERR "CS4236+ chip detected, but "
			   "control port 0x%lx is not valid\n", cport);
		snd_device_free(card, chip);
		return -ENODEV;
	}
	snd_cs4236_ctrl_out(chip, 0, 0x00);
	snd_cs4236_ctrl_out(chip, 2, 0xff);
	snd_cs4236_ctrl_out(chip, 3, 0x00);
	snd_cs4236_ctrl_out(chip, 4, 0x80);
	reg = ((IEC958_AES1_CON_PCM_CODER & 3) << 6) |
	      IEC958_AES0_CON_EMPHASIS_NONE;
	snd_cs4236_ctrl_out(chip, 5, reg);
	snd_cs4236_ctrl_out(chip, 6, IEC958_AES1_CON_PCM_CODER >> 2);
	snd_cs4236_ctrl_out(chip, 7, 0x00);
	/*
	 * 0x8c for C8 is valid for Turtle Beach Malibu - the IEC-958
	 * output is working with this setup, other hardware should
	 * have different signal paths and this value should be
	 * selectable in the future
	 */
	snd_cs4236_ctrl_out(chip, 8, 0x8c);
	chip->rate_constraint = snd_cs4236_xrate;
	chip->set_playback_format = snd_cs4236_playback_format;
	chip->set_capture_format = snd_cs4236_capture_format;
#ifdef CONFIG_PM
	chip->suspend = snd_cs4236_suspend;
	chip->resume = snd_cs4236_resume;
#endif

	/* initialize extended registers */
	for (reg = 0; reg < sizeof(snd_cs4236_ext_map); reg++)
		snd_cs4236_ext_out(chip, CS4236_I23VAL(reg),
				   snd_cs4236_ext_map[reg]);

	/* initialize compatible but more featured registers */
	snd_wss_out(chip, CS4231_LEFT_INPUT, 0x40);
	snd_wss_out(chip, CS4231_RIGHT_INPUT, 0x40);
	snd_wss_out(chip, CS4231_AUX1_LEFT_INPUT, 0xff);
	snd_wss_out(chip, CS4231_AUX1_RIGHT_INPUT, 0xff);
	snd_wss_out(chip, CS4231_AUX2_LEFT_INPUT, 0xdf);
	snd_wss_out(chip, CS4231_AUX2_RIGHT_INPUT, 0xdf);
	snd_wss_out(chip, CS4231_RIGHT_LINE_IN, 0xff);
	snd_wss_out(chip, CS4231_LEFT_LINE_IN, 0xff);
	snd_wss_out(chip, CS4231_RIGHT_LINE_IN, 0xff);
	switch (chip->hardware) {
	case WSS_HW_CS4235:
	case WSS_HW_CS4239:
		snd_wss_out(chip, CS4235_LEFT_MASTER, 0xff);
		snd_wss_out(chip, CS4235_RIGHT_MASTER, 0xff);
		break;
	}

	*rchip = chip;
	return 0;
}

int snd_cs4236_pcm(struct snd_wss *chip, int device)
{
	int err;
	
	err = snd_wss_pcm(chip, device);
	if (err < 0)
		return err;
	chip->pcm->info_flags &= ~SNDRV_PCM_INFO_JOINT_DUPLEX;
	return 0;
}

/*
 *  MIXER
 */

#define CS4236_SINGLE(xname, xindex, reg, shift, mask, invert) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
  .info = snd_cs4236_info_single, \
  .get = snd_cs4236_get_single, .put = snd_cs4236_put_single, \
  .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }

#define CS4236_SINGLE_TLV(xname, xindex, reg, shift, mask, invert, xtlv) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
  .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
  .info = snd_cs4236_info_single, \
  .get = snd_cs4236_get_single, .put = snd_cs4236_put_single, \
  .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24), \
  .tlv = { .p = (xtlv) } }

static int snd_cs4236_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
	int mask = (kcontrol->private_value >> 16) & 0xff;

	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = mask;
	return 0;
}

static int snd_cs4236_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	int reg = kcontrol->private_value & 0xff;
	int shift = (kcontrol->private_value >> 8) & 0xff;
	int mask = (kcontrol->private_value >> 16) & 0xff;
	int invert = (kcontrol->private_value >> 24) & 0xff;
	
	spin_lock_irqsave(&chip->reg_lock, flags);
	ucontrol->value.integer.value[0] = (chip->eimage[CS4236_REG(reg)] >> shift) & mask;
	spin_unlock_irqrestore(&chip->reg_lock, flags);
	if (invert)
		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
	return 0;
}

static int snd_cs4236_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	int reg = kcontrol->private_value & 0xff;
	int shift = (kcontrol->private_value >> 8) & 0xff;
	int mask = (kcontrol->private_value >> 16) & 0xff;
	int invert = (kcontrol->private_value >> 24) & 0xff;
	int change;
	unsigned short val;
	
	val = (ucontrol->value.integer.value[0] & mask);
	if (invert)
		val = mask - val;
	val <<= shift;
	spin_lock_irqsave(&chip->reg_lock, flags);
	val = (chip->eimage[CS4236_REG(reg)] & ~(mask << shift)) | val;
	change = val != chip->eimage[CS4236_REG(reg)];
	snd_cs4236_ext_out(chip, reg, val);
	spin_unlock_irqrestore(&chip->reg_lock, flags);
	return change;
}

#define CS4236_SINGLEC(xname, xindex, reg, shift, mask, invert) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
  .info = snd_cs4236_info_single, \
  .get = snd_cs4236_get_singlec, .put = snd_cs4236_put_singlec, \
  .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }

static int snd_cs4236_get_singlec(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	int reg = kcontrol->private_value & 0xff;
	int shift = (kcontrol->private_value >> 8) & 0xff;
	int mask = (kcontrol->private_value >> 16) & 0xff;
	int invert = (kcontrol->private_value >> 24) & 0xff;
	
	spin_lock_irqsave(&chip->reg_lock, flags);
	ucontrol->value.integer.value[0] = (chip->cimage[reg] >> shift) & mask;
	spin_unlock_irqrestore(&chip->reg_lock, flags);
	if (invert)
		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
	return 0;
}

static int snd_cs4236_put_singlec(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	int reg = kcontrol->private_value & 0xff;
	int shift = (kcontrol->private_value >> 8) & 0xff;
	int mask = (kcontrol->private_value >> 16) & 0xff;
	int invert = (kcontrol->private_value >> 24) & 0xff;
	int change;
	unsigned short val;
	
	val = (ucontrol->value.integer.value[0] & mask);
	if (invert)
		val = mask - val;
	val <<= shift;
	spin_lock_irqsave(&chip->reg_lock, flags);
	val = (chip->cimage[reg] & ~(mask << shift)) | val;
	change = val != chip->cimage[reg];
	snd_cs4236_ctrl_out(chip, reg, val);
	spin_unlock_irqrestore(&chip->reg_lock, flags);
	return change;
}

#define CS4236_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
  .info = snd_cs4236_info_double, \
  .get = snd_cs4236_get_double, .put = snd_cs4236_put_double, \
  .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }

#define CS4236_DOUBLE_TLV(xname, xindex, left_reg, right_reg, shift_left, \
			  shift_right, mask, invert, xtlv) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
  .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
  .info = snd_cs4236_info_double, \
  .get = snd_cs4236_get_double, .put = snd_cs4236_put_double, \
  .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | \
		   (shift_right << 19) | (mask << 24) | (invert << 22), \
  .tlv = { .p = (xtlv) } }

static int snd_cs4236_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
	int mask = (kcontrol->private_value >> 24) & 0xff;

	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 2;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = mask;
	return 0;
}

static int snd_cs4236_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	int left_reg = kcontrol->private_value & 0xff;
	int right_reg = (kcontrol->private_value >> 8) & 0xff;
	int shift_left = (kcontrol->private_value >> 16) & 0x07;
	int shift_right = (kcontrol->private_value >> 19) & 0x07;
	int mask = (kcontrol->private_value >> 24) & 0xff;
	int invert = (kcontrol->private_value >> 22) & 1;
	
	spin_lock_irqsave(&chip->reg_lock, flags);
	ucontrol->value.integer.value[0] = (chip->eimage[CS4236_REG(left_reg)] >> shift_left) & mask;
	ucontrol->value.integer.value[1] = (chip->eimage[CS4236_REG(right_reg)] >> shift_right) & mask;
	spin_unlock_irqrestore(&chip->reg_lock, flags);
	if (invert) {
		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
		ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
	}
	return 0;
}

static int snd_cs4236_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	int left_reg = kcontrol->private_value & 0xff;
	int right_reg = (kcontrol->private_value >> 8) & 0xff;
	int shift_left = (kcontrol->private_value >> 16) & 0x07;
	int shift_right = (kcontrol->private_value >> 19) & 0x07;
	int mask = (kcontrol->private_value >> 24) & 0xff;
	int invert = (kcontrol->private_value >> 22) & 1;
	int change;
	unsigned short val1, val2;
	
	val1 = ucontrol->value.integer.value[0] & mask;
	val2 = ucontrol->value.integer.value[1] & mask;
	if (invert) {
		val1 = mask - val1;
		val2 = mask - val2;
	}
	val1 <<= shift_left;
	val2 <<= shift_right;
	spin_lock_irqsave(&chip->reg_lock, flags);
	if (left_reg != right_reg) {
		val1 = (chip->eimage[CS4236_REG(left_reg)] & ~(mask << shift_left)) | val1;
		val2 = (chip->eimage[CS4236_REG(right_reg)] & ~(mask << shift_right)) | val2;
		change = val1 != chip->eimage[CS4236_REG(left_reg)] || val2 != chip->eimage[CS4236_REG(right_reg)];
		snd_cs4236_ext_out(chip, left_reg, val1);
		snd_cs4236_ext_out(chip, right_reg, val2);
	} else {
		val1 = (chip->eimage[CS4236_REG(left_reg)] & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
		change = val1 != chip->eimage[CS4236_REG(left_reg)];
		snd_cs4236_ext_out(chip, left_reg, val1);
	}
	spin_unlock_irqrestore(&chip->reg_lock, flags);
	return change;
}

#define CS4236_DOUBLE1(xname, xindex, left_reg, right_reg, shift_left, \
			shift_right, mask, invert) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
  .info = snd_cs4236_info_double, \
  .get = snd_cs4236_get_double1, .put = snd_cs4236_put_double1, \
  .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }

#define CS4236_DOUBLE1_TLV(xname, xindex, left_reg, right_reg, shift_left, \
			   shift_right, mask, invert, xtlv) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
  .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
  .info = snd_cs4236_info_double, \
  .get = snd_cs4236_get_double1, .put = snd_cs4236_put_double1, \
  .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | \
		   (shift_right << 19) | (mask << 24) | (invert << 22), \
  .tlv = { .p = (xtlv) } }

static int snd_cs4236_get_double1(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	int left_reg = kcontrol->private_value & 0xff;
	int right_reg = (kcontrol->private_value >> 8) & 0xff;
	int shift_left = (kcontrol->private_value >> 16) & 0x07;
	int shift_right = (kcontrol->private_value >> 19) & 0x07;
	int mask = (kcontrol->private_value >> 24) & 0xff;
	int invert = (kcontrol->private_value >> 22) & 1;
	
	spin_lock_irqsave(&chip->reg_lock, flags);
	ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask;
	ucontrol->value.integer.value[1] = (chip->eimage[CS4236_REG(right_reg)] >> shift_right) & mask;
	spin_unlock_irqrestore(&chip->reg_lock, flags);
	if (invert) {
		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
		ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
	}
	return 0;
}

static int snd_cs4236_put_double1(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	int left_reg = kcontrol->private_value & 0xff;
	int right_reg = (kcontrol->private_value >> 8) & 0xff;
	int shift_left = (kcontrol->private_value >> 16) & 0x07;
	int shift_right = (kcontrol->private_value >> 19) & 0x07;
	int mask = (kcontrol->private_value >> 24) & 0xff;
	int invert = (kcontrol->private_value >> 22) & 1;
	int change;
	unsigned short val1, val2;
	
	val1 = ucontrol->value.integer.value[0] & mask;
	val2 = ucontrol->value.integer.value[1] & mask;
	if (invert) {
		val1 = mask - val1;
		val2 = mask - val2;
	}
	val1 <<= shift_left;
	val2 <<= shift_right;
	spin_lock_irqsave(&chip->reg_lock, flags);
	val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
	val2 = (chip->eimage[CS4236_REG(right_reg)] & ~(mask << shift_right)) | val2;
	change = val1 != chip->image[left_reg] || val2 != chip->eimage[CS4236_REG(right_reg)];
	snd_wss_out(chip, left_reg, val1);
	snd_cs4236_ext_out(chip, right_reg, val2);
	spin_unlock_irqrestore(&chip->reg_lock, flags);
	return change;
}

#define CS4236_MASTER_DIGITAL(xname, xindex, xtlv) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
  .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
  .info = snd_cs4236_info_double, \
  .get = snd_cs4236_get_master_digital, .put = snd_cs4236_put_master_digital, \
  .private_value = 71 << 24, \
  .tlv = { .p = (xtlv) } }

static inline int snd_cs4236_mixer_master_digital_invert_volume(int vol)
{
	return (vol < 64) ? 63 - vol : 64 + (71 - vol);
}

static int snd_cs4236_get_master_digital(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	
	spin_lock_irqsave(&chip->reg_lock, flags);
	ucontrol->value.integer.value[0] = snd_cs4236_mixer_master_digital_invert_volume(chip->eimage[CS4236_REG(CS4236_LEFT_MASTER)] & 0x7f);
	ucontrol->value.integer.value[1] = snd_cs4236_mixer_master_digital_invert_volume(chip->eimage[CS4236_REG(CS4236_RIGHT_MASTER)] & 0x7f);
	spin_unlock_irqrestore(&chip->reg_lock, flags);
	return 0;
}

static int snd_cs4236_put_master_digital(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	int change;
	unsigned short val1, val2;
	
	val1 = snd_cs4236_mixer_master_digital_invert_volume(ucontrol->value.integer.value[0] & 0x7f);
	val2 = snd_cs4236_mixer_master_digital_invert_volume(ucontrol->value.integer.value[1] & 0x7f);
	spin_lock_irqsave(&chip->reg_lock, flags);
	val1 = (chip->eimage[CS4236_REG(CS4236_LEFT_MASTER)] & ~0x7f) | val1;
	val2 = (chip->eimage[CS4236_REG(CS4236_RIGHT_MASTER)] & ~0x7f) | val2;
	change = val1 != chip->eimage[CS4236_REG(CS4236_LEFT_MASTER)] || val2 != chip->eimage[CS4236_REG(CS4236_RIGHT_MASTER)];
	snd_cs4236_ext_out(chip, CS4236_LEFT_MASTER, val1);
	snd_cs4236_ext_out(chip, CS4236_RIGHT_MASTER, val2);
	spin_unlock_irqrestore(&chip->reg_lock, flags);
	return change;
}

#define CS4235_OUTPUT_ACCU(xname, xindex, xtlv) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
  .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
  .info = snd_cs4236_info_double, \
  .get = snd_cs4235_get_output_accu, .put = snd_cs4235_put_output_accu, \
  .private_value = 3 << 24, \
  .tlv = { .p = (xtlv) } }

static inline int snd_cs4235_mixer_output_accu_get_volume(int vol)
{
	switch ((vol >> 5) & 3) {
	case 0: return 1;
	case 1: return 3;
	case 2: return 2;
	case 3: return 0;
 	}
	return 3;
}

static inline int snd_cs4235_mixer_output_accu_set_volume(int vol)
{
	switch (vol & 3) {
	case 0: return 3 << 5;
	case 1: return 0 << 5;
	case 2: return 2 << 5;
	case 3: return 1 << 5;
	}
	return 1 << 5;
}

static int snd_cs4235_get_output_accu(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	
	spin_lock_irqsave(&chip->reg_lock, flags);
	ucontrol->value.integer.value[0] = snd_cs4235_mixer_output_accu_get_volume(chip->image[CS4235_LEFT_MASTER]);
	ucontrol->value.integer.value[1] = snd_cs4235_mixer_output_accu_get_volume(chip->image[CS4235_RIGHT_MASTER]);
	spin_unlock_irqrestore(&chip->reg_lock, flags);
	return 0;
}

static int snd_cs4235_put_output_accu(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	int change;
	unsigned short val1, val2;
	
	val1 = snd_cs4235_mixer_output_accu_set_volume(ucontrol->value.integer.value[0]);
	val2 = snd_cs4235_mixer_output_accu_set_volume(ucontrol->value.integer.value[1]);
	spin_lock_irqsave(&chip->reg_lock, flags);
	val1 = (chip->image[CS4235_LEFT_MASTER] & ~(3 << 5)) | val1;
	val2 = (chip->image[CS4235_RIGHT_MASTER] & ~(3 << 5)) | val2;
	change = val1 != chip->image[CS4235_LEFT_MASTER] || val2 != chip->image[CS4235_RIGHT_MASTER];
	snd_wss_out(chip, CS4235_LEFT_MASTER, val1);
	snd_wss_out(chip, CS4235_RIGHT_MASTER, val2);
	spin_unlock_irqrestore(&chip->reg_lock, flags);
	return change;
}

static const DECLARE_TLV_DB_SCALE(db_scale_7bit, -9450, 150, 0);
static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0);
static const DECLARE_TLV_DB_SCALE(db_scale_6bit_12db_max, -8250, 150, 0);
static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0);
static const DECLARE_TLV_DB_SCALE(db_scale_5bit_22db_max, -2400, 150, 0);
static const DECLARE_TLV_DB_SCALE(db_scale_4bit, -4500, 300, 0);
static const DECLARE_TLV_DB_SCALE(db_scale_2bit, -1800, 600, 0);
static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0);

static struct snd_kcontrol_new snd_cs4236_controls[] = {

CS4236_DOUBLE("Master Digital Playback Switch", 0,
		CS4236_LEFT_MASTER, CS4236_RIGHT_MASTER, 7, 7, 1, 1),
CS4236_DOUBLE("Master Digital Capture Switch", 0,
		CS4236_DAC_MUTE, CS4236_DAC_MUTE, 7, 6, 1, 1),
CS4236_MASTER_DIGITAL("Master Digital Volume", 0, db_scale_7bit),

CS4236_DOUBLE_TLV("Capture Boost Volume", 0,
		  CS4236_LEFT_MIX_CTRL, CS4236_RIGHT_MIX_CTRL, 5, 5, 3, 1,
		  db_scale_2bit),

WSS_DOUBLE("PCM Playback Switch", 0,
		CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),
WSS_DOUBLE_TLV("PCM Playback Volume", 0,
		CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 63, 1,
		db_scale_6bit),

CS4236_DOUBLE("DSP Playback Switch", 0,
		CS4236_LEFT_DSP, CS4236_RIGHT_DSP, 7, 7, 1, 1),
CS4236_DOUBLE_TLV("DSP Playback Volume", 0,
		  CS4236_LEFT_DSP, CS4236_RIGHT_DSP, 0, 0, 63, 1,
		  db_scale_6bit),

CS4236_DOUBLE("FM Playback Switch", 0,
		CS4236_LEFT_FM, CS4236_RIGHT_FM, 7, 7, 1, 1),
CS4236_DOUBLE_TLV("FM Playback Volume", 0,
		  CS4236_LEFT_FM, CS4236_RIGHT_FM, 0, 0, 63, 1,
		  db_scale_6bit),

CS4236_DOUBLE("Wavetable Playback Switch", 0,
		CS4236_LEFT_WAVE, CS4236_RIGHT_WAVE, 7, 7, 1, 1),
CS4236_DOUBLE_TLV("Wavetable Playback Volume", 0,
		  CS4236_LEFT_WAVE, CS4236_RIGHT_WAVE, 0, 0, 63, 1,
		  db_scale_6bit_12db_max),

WSS_DOUBLE("Synth Playback Switch", 0,
		CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
WSS_DOUBLE_TLV("Synth Volume", 0,
		CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 31, 1,
		db_scale_5bit_12db_max),
WSS_DOUBLE("Synth Capture Switch", 0,
		CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 6, 6, 1, 1),
WSS_DOUBLE("Synth Capture Bypass", 0,
		CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 5, 5, 1, 1),

CS4236_DOUBLE("Mic Playback Switch", 0,
		CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 6, 6, 1, 1),
CS4236_DOUBLE("Mic Capture Switch", 0,
		CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 7, 7, 1, 1),
CS4236_DOUBLE_TLV("Mic Volume", 0, CS4236_LEFT_MIC, CS4236_RIGHT_MIC,
		  0, 0, 31, 1, db_scale_5bit_22db_max),
CS4236_DOUBLE("Mic Playback Boost (+20dB)", 0,
		CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 5, 5, 1, 0),

WSS_DOUBLE("Line Playback Switch", 0,
		CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
WSS_DOUBLE_TLV("Line Volume", 0,
		CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1,
		db_scale_5bit_12db_max),
WSS_DOUBLE("Line Capture Switch", 0,
		CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 6, 6, 1, 1),
WSS_DOUBLE("Line Capture Bypass", 0,
		CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 5, 5, 1, 1),

WSS_DOUBLE("CD Playback Switch", 0,
		CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
WSS_DOUBLE_TLV("CD Volume", 0,
		CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1,
		db_scale_5bit_12db_max),
WSS_DOUBLE("CD Capture Switch", 0,
		CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 6, 6, 1, 1),

CS4236_DOUBLE1("Mono Output Playback Switch", 0,
		CS4231_MONO_CTRL, CS4236_RIGHT_MIX_CTRL, 6, 7, 1, 1),
CS4236_DOUBLE1("Beep Playback Switch", 0,
		CS4231_MONO_CTRL, CS4236_LEFT_MIX_CTRL, 7, 7, 1, 1),
WSS_SINGLE_TLV("Beep Playback Volume", 0, CS4231_MONO_CTRL, 0, 15, 1,
		db_scale_4bit),
WSS_SINGLE("Beep Bypass Playback Switch", 0, CS4231_MONO_CTRL, 5, 1, 0),

WSS_DOUBLE_TLV("Capture Volume", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT,
		0, 0, 15, 0, db_scale_rec_gain),
WSS_DOUBLE("Analog Loopback Capture Switch", 0,
		CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 7, 7, 1, 0),

WSS_SINGLE("Loopback Digital Playback Switch", 0, CS4231_LOOPBACK, 0, 1, 0),
CS4236_DOUBLE1_TLV("Loopback Digital Playback Volume", 0,
		   CS4231_LOOPBACK, CS4236_RIGHT_LOOPBACK, 2, 0, 63, 1,
		   db_scale_6bit),
};

static const DECLARE_TLV_DB_SCALE(db_scale_5bit_6db_max, -5600, 200, 0);
static const DECLARE_TLV_DB_SCALE(db_scale_2bit_16db_max, -2400, 800, 0);

static struct snd_kcontrol_new snd_cs4235_controls[] = {

WSS_DOUBLE("Master Playback Switch", 0,
		CS4235_LEFT_MASTER, CS4235_RIGHT_MASTER, 7, 7, 1, 1),
WSS_DOUBLE_TLV("Master Playback Volume", 0,
		CS4235_LEFT_MASTER, CS4235_RIGHT_MASTER, 0, 0, 31, 1,
		db_scale_5bit_6db_max),

CS4235_OUTPUT_ACCU("Playback Volume", 0, db_scale_2bit_16db_max),

WSS_DOUBLE("Synth Playback Switch", 1,
		CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
WSS_DOUBLE("Synth Capture Switch", 1,
		CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 6, 6, 1, 1),
WSS_DOUBLE_TLV("Synth Volume", 1,
		CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 31, 1,
		db_scale_5bit_12db_max),

CS4236_DOUBLE_TLV("Capture Volume", 0,
		  CS4236_LEFT_MIX_CTRL, CS4236_RIGHT_MIX_CTRL, 5, 5, 3, 1,
		  db_scale_2bit),

WSS_DOUBLE("PCM Playback Switch", 0,
		CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),
WSS_DOUBLE("PCM Capture Switch", 0,
		CS4236_DAC_MUTE, CS4236_DAC_MUTE, 7, 6, 1, 1),
WSS_DOUBLE_TLV("PCM Volume", 0,
		CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 63, 1,
		db_scale_6bit),

CS4236_DOUBLE("DSP Switch", 0, CS4236_LEFT_DSP, CS4236_RIGHT_DSP, 7, 7, 1, 1),

CS4236_DOUBLE("FM Switch", 0, CS4236_LEFT_FM, CS4236_RIGHT_FM, 7, 7, 1, 1),

CS4236_DOUBLE("Wavetable Switch", 0,
		CS4236_LEFT_WAVE, CS4236_RIGHT_WAVE, 7, 7, 1, 1),

CS4236_DOUBLE("Mic Capture Switch", 0,
		CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 7, 7, 1, 1),
CS4236_DOUBLE("Mic Playback Switch", 0,
		CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 6, 6, 1, 1),
CS4236_SINGLE_TLV("Mic Volume", 0, CS4236_LEFT_MIC, 0, 31, 1,
		  db_scale_5bit_22db_max),
CS4236_SINGLE("Mic Boost (+20dB)", 0, CS4236_LEFT_MIC, 5, 1, 0),

WSS_DOUBLE("Line Playback Switch", 0,
		CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
WSS_DOUBLE("Line Capture Switch", 0,
		CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 6, 6, 1, 1),
WSS_DOUBLE_TLV("Line Volume", 0,
		CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1,
		db_scale_5bit_12db_max),

WSS_DOUBLE("CD Playback Switch", 1,
		CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
WSS_DOUBLE("CD Capture Switch", 1,
		CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 6, 6, 1, 1),
WSS_DOUBLE_TLV("CD Volume", 1,
		CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1,
		db_scale_5bit_12db_max),

CS4236_DOUBLE1("Beep Playback Switch", 0,
		CS4231_MONO_CTRL, CS4236_LEFT_MIX_CTRL, 7, 7, 1, 1),
WSS_SINGLE("Beep Playback Volume", 0, CS4231_MONO_CTRL, 0, 15, 1),

WSS_DOUBLE("Analog Loopback Switch", 0,
		CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 7, 7, 1, 0),
};

#define CS4236_IEC958_ENABLE(xname, xindex) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
  .info = snd_cs4236_info_single, \
  .get = snd_cs4236_get_iec958_switch, .put = snd_cs4236_put_iec958_switch, \
  .private_value = 1 << 16 }

static int snd_cs4236_get_iec958_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	
	spin_lock_irqsave(&chip->reg_lock, flags);
	ucontrol->value.integer.value[0] = chip->image[CS4231_ALT_FEATURE_1] & 0x02 ? 1 : 0;
#if 0
	printk(KERN_DEBUG "get valid: ALT = 0x%x, C3 = 0x%x, C4 = 0x%x, "
	       "C5 = 0x%x, C6 = 0x%x, C8 = 0x%x\n",
			snd_wss_in(chip, CS4231_ALT_FEATURE_1),
			snd_cs4236_ctrl_in(chip, 3),
			snd_cs4236_ctrl_in(chip, 4),
			snd_cs4236_ctrl_in(chip, 5),
			snd_cs4236_ctrl_in(chip, 6),
			snd_cs4236_ctrl_in(chip, 8));
#endif
	spin_unlock_irqrestore(&chip->reg_lock, flags);
	return 0;
}

static int snd_cs4236_put_iec958_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	int change;
	unsigned short enable, val;
	
	enable = ucontrol->value.integer.value[0] & 1;

	mutex_lock(&chip->mce_mutex);
	snd_wss_mce_up(chip);
	spin_lock_irqsave(&chip->reg_lock, flags);
	val = (chip->image[CS4231_ALT_FEATURE_1] & ~0x0e) | (0<<2) | (enable << 1);
	change = val != chip->image[CS4231_ALT_FEATURE_1];
	snd_wss_out(chip, CS4231_ALT_FEATURE_1, val);
	val = snd_cs4236_ctrl_in(chip, 4) | 0xc0;
	snd_cs4236_ctrl_out(chip, 4, val);
	udelay(100);
	val &= ~0x40;
	snd_cs4236_ctrl_out(chip, 4, val);
	spin_unlock_irqrestore(&chip->reg_lock, flags);
	snd_wss_mce_down(chip);
	mutex_unlock(&chip->mce_mutex);

#if 0
	printk(KERN_DEBUG "set valid: ALT = 0x%x, C3 = 0x%x, C4 = 0x%x, "
	       "C5 = 0x%x, C6 = 0x%x, C8 = 0x%x\n",
			snd_wss_in(chip, CS4231_ALT_FEATURE_1),
			snd_cs4236_ctrl_in(chip, 3),
			snd_cs4236_ctrl_in(chip, 4),
			snd_cs4236_ctrl_in(chip, 5),
			snd_cs4236_ctrl_in(chip, 6),
			snd_cs4236_ctrl_in(chip, 8));
#endif
	return change;
}

static struct snd_kcontrol_new snd_cs4236_iec958_controls[] = {
CS4236_IEC958_ENABLE("IEC958 Output Enable", 0),
CS4236_SINGLEC("IEC958 Output Validity", 0, 4, 4, 1, 0),
CS4236_SINGLEC("IEC958 Output User", 0, 4, 5, 1, 0),
CS4236_SINGLEC("IEC958 Output CSBR", 0, 4, 6, 1, 0),
CS4236_SINGLEC("IEC958 Output Channel Status Low", 0, 5, 1, 127, 0),
CS4236_SINGLEC("IEC958 Output Channel Status High", 0, 6, 0, 255, 0)
};

static struct snd_kcontrol_new snd_cs4236_3d_controls_cs4235[] = {
CS4236_SINGLEC("3D Control - Switch", 0, 3, 4, 1, 0),
CS4236_SINGLEC("3D Control - Space", 0, 2, 4, 15, 1)
};

static struct snd_kcontrol_new snd_cs4236_3d_controls_cs4237[] = {
CS4236_SINGLEC("3D Control - Switch", 0, 3, 7, 1, 0),
CS4236_SINGLEC("3D Control - Space", 0, 2, 4, 15, 1),
CS4236_SINGLEC("3D Control - Center", 0, 2, 0, 15, 1),
CS4236_SINGLEC("3D Control - Mono", 0, 3, 6, 1, 0),
CS4236_SINGLEC("3D Control - IEC958", 0, 3, 5, 1, 0)
};

static struct snd_kcontrol_new snd_cs4236_3d_controls_cs4238[] = {
CS4236_SINGLEC("3D Control - Switch", 0, 3, 4, 1, 0),
CS4236_SINGLEC("3D Control - Space", 0, 2, 4, 15, 1),
CS4236_SINGLEC("3D Control - Volume", 0, 2, 0, 15, 1),
CS4236_SINGLEC("3D Control - IEC958", 0, 3, 5, 1, 0)
};

int snd_cs4236_mixer(struct snd_wss *chip)
{
	struct snd_card *card;
	unsigned int idx, count;
	int err;
	struct snd_kcontrol_new *kcontrol;

	if (snd_BUG_ON(!chip || !chip->card))
		return -EINVAL;
	card = chip->card;
	strcpy(card->mixername, snd_wss_chip_id(chip));

	if (chip->hardware == WSS_HW_CS4235 ||
	    chip->hardware == WSS_HW_CS4239) {
		for (idx = 0; idx < ARRAY_SIZE(snd_cs4235_controls); idx++) {
			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4235_controls[idx], chip))) < 0)
				return err;
		}
	} else {
		for (idx = 0; idx < ARRAY_SIZE(snd_cs4236_controls); idx++) {
			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4236_controls[idx], chip))) < 0)
				return err;
		}
	}
	switch (chip->hardware) {
	case WSS_HW_CS4235:
	case WSS_HW_CS4239:
		count = ARRAY_SIZE(snd_cs4236_3d_controls_cs4235);
		kcontrol = snd_cs4236_3d_controls_cs4235;
		break;
	case WSS_HW_CS4237B:
		count = ARRAY_SIZE(snd_cs4236_3d_controls_cs4237);
		kcontrol = snd_cs4236_3d_controls_cs4237;
		break;
	case WSS_HW_CS4238B:
		count = ARRAY_SIZE(snd_cs4236_3d_controls_cs4238);
		kcontrol = snd_cs4236_3d_controls_cs4238;
		break;
	default:
		count = 0;
		kcontrol = NULL;
	}
	for (idx = 0; idx < count; idx++, kcontrol++) {
		if ((err = snd_ctl_add(card, snd_ctl_new1(kcontrol, chip))) < 0)
			return err;
	}
	if (chip->hardware == WSS_HW_CS4237B ||
	    chip->hardware == WSS_HW_CS4238B) {
		for (idx = 0; idx < ARRAY_SIZE(snd_cs4236_iec958_controls); idx++) {
			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4236_iec958_controls[idx], chip))) < 0)
				return err;
		}
	}
	return 0;
}