p16v.c 29.1 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
/*
 *  Copyright (c) by James Courtier-Dutton <James@superbug.demon.co.uk>
 *  Driver p16v chips
 *  Version: 0.25
 *
 *  FEATURES currently supported:
 *    Output fixed at S32_LE, 2 channel to hw:0,0
 *    Rates: 44.1, 48, 96, 192.
 *
 *  Changelog:
 *  0.8
 *    Use separate card based buffer for periods table.
 *  0.9
 *    Use 2 channel output streams instead of 8 channel.
 *       (8 channel output streams might be good for ASIO type output)
 *    Corrected speaker output, so Front -> Front etc.
 *  0.10
 *    Fixed missed interrupts.
 *  0.11
 *    Add Sound card model number and names.
 *    Add Analog volume controls.
 *  0.12
 *    Corrected playback interrupts. Now interrupt per period, instead of half period.
 *  0.13
 *    Use single trigger for multichannel.
 *  0.14
 *    Mic capture now works at fixed: S32_LE, 96000Hz, Stereo.
 *  0.15
 *    Force buffer_size / period_size == INTEGER.
 *  0.16
 *    Update p16v.c to work with changed alsa api.
 *  0.17
 *    Update p16v.c to work with changed alsa api. Removed boot_devs.
 *  0.18
 *    Merging with snd-emu10k1 driver.
 *  0.19
 *    One stereo channel at 24bit now works.
 *  0.20
 *    Added better register defines.
 *  0.21
 *    Integrated with snd-emu10k1 driver.
 *  0.22
 *    Removed #if 0 ... #endif
 *  0.23
 *    Implement different capture rates.
 *  0.24
 *    Implement different capture source channels.
 *    e.g. When HD Capture source is set to SPDIF,
 *    setting HD Capture channel to 0 captures from CDROM digital input.
 *    setting HD Capture channel to 1 captures from SPDIF in.
 *  0.25
 *    Include capture buffer sizes.
 *
 *  BUGS:
 *    Some stability problems when unloading the snd-p16v kernel module.
 *    --
 *
 *  TODO:
 *    SPDIF out.
 *    Find out how to change capture sample rates. E.g. To record SPDIF at 48000Hz.
 *    Currently capture fixed at 48000Hz.
 *
 *    --
 *  GENERAL INFO:
 *    Model: SB0240
 *    P16V Chip: CA0151-DBS
 *    Audigy 2 Chip: CA0102-IAT
 *    AC97 Codec: STAC 9721
 *    ADC: Philips 1361T (Stereo 24bit)
 *    DAC: CS4382-K (8-channel, 24bit, 192Khz)
 *
 *  This code was initially based on code from ALSA's emu10k1x.c which is:
 *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; 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
 *
 */
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/moduleparam.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/pcm.h>
#include <sound/ac97_codec.h>
#include <sound/info.h>
#include <sound/tlv.h>
#include <sound/emu10k1.h>
#include "p16v.h"

#define SET_CHANNEL 0  /* Testing channel outputs 0=Front, 1=Center/LFE, 2=Unknown, 3=Rear */
#define PCM_FRONT_CHANNEL 0
#define PCM_REAR_CHANNEL 1
#define PCM_CENTER_LFE_CHANNEL 2
#define PCM_SIDE_CHANNEL 3
#define CONTROL_FRONT_CHANNEL 0
#define CONTROL_REAR_CHANNEL 3
#define CONTROL_CENTER_LFE_CHANNEL 1
#define CONTROL_SIDE_CHANNEL 2

/* Card IDs:
 * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:2002 -> Audigy2 ZS 7.1 Model:SB0350
 * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:1007 -> Audigy2 6.1    Model:SB0240
 * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:1002 -> Audigy2 Platinum  Model:SB msb0240230009266
 * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:2007 -> Audigy4 Pro Model:SB0380 M1SB0380472001901E
 *
 */

 /* hardware definition */
static struct snd_pcm_hardware snd_p16v_playback_hw = {
	.info =			SNDRV_PCM_INFO_MMAP | 
				SNDRV_PCM_INFO_INTERLEAVED |
				SNDRV_PCM_INFO_BLOCK_TRANSFER |
				SNDRV_PCM_INFO_RESUME |
				SNDRV_PCM_INFO_MMAP_VALID |
				SNDRV_PCM_INFO_SYNC_START,
	.formats =		SNDRV_PCM_FMTBIT_S32_LE, /* Only supports 24-bit samples padded to 32 bits. */
	.rates =		SNDRV_PCM_RATE_192000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100, 
	.rate_min =		44100,
	.rate_max =		192000,
	.channels_min =		8, 
	.channels_max =		8,
	.buffer_bytes_max =	((65536 - 64) * 8),
	.period_bytes_min =	64,
	.period_bytes_max =	(65536 - 64),
	.periods_min =		2,
	.periods_max =		8,
	.fifo_size =		0,
};

static struct snd_pcm_hardware snd_p16v_capture_hw = {
	.info =			(SNDRV_PCM_INFO_MMAP |
				 SNDRV_PCM_INFO_INTERLEAVED |
				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
				 SNDRV_PCM_INFO_RESUME |
				 SNDRV_PCM_INFO_MMAP_VALID),
	.formats =		SNDRV_PCM_FMTBIT_S32_LE,
	.rates =		SNDRV_PCM_RATE_192000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100, 
	.rate_min =		44100,
	.rate_max =		192000,
	.channels_min =		2,
	.channels_max =		2,
	.buffer_bytes_max =	(65536 - 64),
	.period_bytes_min =	64,
	.period_bytes_max =	(65536 - 128) >> 1,  /* size has to be N*64 bytes */
	.periods_min =		2,
	.periods_max =		2,
	.fifo_size =		0,
};

static void snd_p16v_pcm_free_substream(struct snd_pcm_runtime *runtime)
{
	struct snd_emu10k1_pcm *epcm = runtime->private_data;
  
	if (epcm) {
        	/* snd_printk(KERN_DEBUG "epcm free: %p\n", epcm); */
		kfree(epcm);
	}
}

/* open_playback callback */
static int snd_p16v_pcm_open_playback_channel(struct snd_pcm_substream *substream, int channel_id)
{
	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
        struct snd_emu10k1_voice *channel = &(emu->p16v_voices[channel_id]);
	struct snd_emu10k1_pcm *epcm;
	struct snd_pcm_runtime *runtime = substream->runtime;
	int err;

	epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
        /* snd_printk(KERN_DEBUG "epcm kcalloc: %p\n", epcm); */

	if (epcm == NULL)
		return -ENOMEM;
	epcm->emu = emu;
	epcm->substream = substream;
	/*
	snd_printk(KERN_DEBUG "epcm device=%d, channel_id=%d\n",
		   substream->pcm->device, channel_id);
	*/
	runtime->private_data = epcm;
	runtime->private_free = snd_p16v_pcm_free_substream;
  
	runtime->hw = snd_p16v_playback_hw;

        channel->emu = emu;
        channel->number = channel_id;

        channel->use=1;
#if 0 /* debug */
	snd_printk(KERN_DEBUG
		   "p16v: open channel_id=%d, channel=%p, use=0x%x\n",
		   channel_id, channel, channel->use);
	printk(KERN_DEBUG "open:channel_id=%d, chip=%p, channel=%p\n",
	       channel_id, chip, channel);
#endif /* debug */
	/* channel->interrupt = snd_p16v_pcm_channel_interrupt; */
	channel->epcm = epcm;
	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
                return err;

	runtime->sync.id32[0] = substream->pcm->card->number;
	runtime->sync.id32[1] = 'P';
	runtime->sync.id32[2] = 16;
	runtime->sync.id32[3] = 'V';

	return 0;
}
/* open_capture callback */
static int snd_p16v_pcm_open_capture_channel(struct snd_pcm_substream *substream, int channel_id)
{
	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
	struct snd_emu10k1_voice *channel = &(emu->p16v_capture_voice);
	struct snd_emu10k1_pcm *epcm;
	struct snd_pcm_runtime *runtime = substream->runtime;
	int err;

	epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
	/* snd_printk(KERN_DEBUG "epcm kcalloc: %p\n", epcm); */

	if (epcm == NULL)
		return -ENOMEM;
	epcm->emu = emu;
	epcm->substream = substream;
	/*
	snd_printk(KERN_DEBUG "epcm device=%d, channel_id=%d\n",
		   substream->pcm->device, channel_id);
	*/
	runtime->private_data = epcm;
	runtime->private_free = snd_p16v_pcm_free_substream;
  
	runtime->hw = snd_p16v_capture_hw;

	channel->emu = emu;
	channel->number = channel_id;

	channel->use=1;
#if 0 /* debug */
	snd_printk(KERN_DEBUG
		   "p16v: open channel_id=%d, channel=%p, use=0x%x\n",
		   channel_id, channel, channel->use);
	printk(KERN_DEBUG "open:channel_id=%d, chip=%p, channel=%p\n",
	       channel_id, chip, channel);
#endif /* debug */
	/* channel->interrupt = snd_p16v_pcm_channel_interrupt; */
	channel->epcm = epcm;
	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
		return err;

	return 0;
}


/* close callback */
static int snd_p16v_pcm_close_playback(struct snd_pcm_substream *substream)
{
	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
	//struct snd_pcm_runtime *runtime = substream->runtime;
	//struct snd_emu10k1_pcm *epcm = runtime->private_data;
	emu->p16v_voices[substream->pcm->device - emu->p16v_device_offset].use = 0;
	/* FIXME: maybe zero others */
	return 0;
}

/* close callback */
static int snd_p16v_pcm_close_capture(struct snd_pcm_substream *substream)
{
	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
	//struct snd_pcm_runtime *runtime = substream->runtime;
	//struct snd_emu10k1_pcm *epcm = runtime->private_data;
	emu->p16v_capture_voice.use = 0;
	/* FIXME: maybe zero others */
	return 0;
}

static int snd_p16v_pcm_open_playback_front(struct snd_pcm_substream *substream)
{
	return snd_p16v_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
}

static int snd_p16v_pcm_open_capture(struct snd_pcm_substream *substream)
{
	// Only using channel 0 for now, but the card has 2 channels.
	return snd_p16v_pcm_open_capture_channel(substream, 0);
}

/* hw_params callback */
static int snd_p16v_pcm_hw_params_playback(struct snd_pcm_substream *substream,
				      struct snd_pcm_hw_params *hw_params)
{
	int result;
	result = snd_pcm_lib_malloc_pages(substream,
					params_buffer_bytes(hw_params));
	return result;
}

/* hw_params callback */
static int snd_p16v_pcm_hw_params_capture(struct snd_pcm_substream *substream,
				      struct snd_pcm_hw_params *hw_params)
{
	int result;
	result = snd_pcm_lib_malloc_pages(substream,
					params_buffer_bytes(hw_params));
	return result;
}


/* hw_free callback */
static int snd_p16v_pcm_hw_free_playback(struct snd_pcm_substream *substream)
{
	int result;
	result = snd_pcm_lib_free_pages(substream);
	return result;
}

/* hw_free callback */
static int snd_p16v_pcm_hw_free_capture(struct snd_pcm_substream *substream)
{
	int result;
	result = snd_pcm_lib_free_pages(substream);
	return result;
}


/* prepare playback callback */
static int snd_p16v_pcm_prepare_playback(struct snd_pcm_substream *substream)
{
	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
	struct snd_pcm_runtime *runtime = substream->runtime;
	int channel = substream->pcm->device - emu->p16v_device_offset;
	u32 *table_base = (u32 *)(emu->p16v_buffer.area+(8*16*channel));
	u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
	int i;
	u32 tmp;
	
#if 0 /* debug */
	snd_printk(KERN_DEBUG "prepare:channel_number=%d, rate=%d, "
		   "format=0x%x, channels=%d, buffer_size=%ld, "
		   "period_size=%ld, periods=%u, frames_to_bytes=%d\n",
		   channel, runtime->rate, runtime->format, runtime->channels,
		   runtime->buffer_size, runtime->period_size,
		   runtime->periods, frames_to_bytes(runtime, 1));
	snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, table_base=%p\n",
		   runtime->dma_addr, runtime->dma_area, table_base);
	snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
		   emu->p16v_buffer.addr, emu->p16v_buffer.area,
		   emu->p16v_buffer.bytes);
#endif /* debug */
	tmp = snd_emu10k1_ptr_read(emu, A_SPDIF_SAMPLERATE, channel);
        switch (runtime->rate) {
	case 44100:
	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x8080);
	  break;
	case 96000:
	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x4040);
	  break;
	case 192000:
	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x2020);
	  break;
	case 48000:
	default:
	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0xe0e0) | 0x0000);
	  break;
	}
	/* FIXME: Check emu->buffer.size before actually writing to it. */
	for(i = 0; i < runtime->periods; i++) {
		table_base[i*2]=runtime->dma_addr+(i*period_size_bytes);
		table_base[(i*2)+1]=period_size_bytes<<16;
	}
 
	snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_ADDR, channel, emu->p16v_buffer.addr+(8*16*channel));
	snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
	snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_PTR, channel, 0);
	snd_emu10k1_ptr20_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
	//snd_emu10k1_ptr20_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
	snd_emu10k1_ptr20_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
	snd_emu10k1_ptr20_write(emu, PLAYBACK_POINTER, channel, 0);
	snd_emu10k1_ptr20_write(emu, 0x07, channel, 0x0);
	snd_emu10k1_ptr20_write(emu, 0x08, channel, 0);

	return 0;
}

/* prepare capture callback */
static int snd_p16v_pcm_prepare_capture(struct snd_pcm_substream *substream)
{
	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
	struct snd_pcm_runtime *runtime = substream->runtime;
	int channel = substream->pcm->device - emu->p16v_device_offset;
	u32 tmp;

	/*
	printk(KERN_DEBUG "prepare capture:channel_number=%d, rate=%d, "
	       "format=0x%x, channels=%d, buffer_size=%ld, period_size=%ld, "
	       "frames_to_bytes=%d\n",
	       channel, runtime->rate, runtime->format, runtime->channels,
	       runtime->buffer_size, runtime->period_size,
	       frames_to_bytes(runtime, 1));
	*/
	tmp = snd_emu10k1_ptr_read(emu, A_SPDIF_SAMPLERATE, channel);
        switch (runtime->rate) {
	case 44100:
	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0800);
	  break;
	case 96000:
	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0400);
	  break;
	case 192000:
	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0200);
	  break;
	case 48000:
	default:
	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0000);
	  break;
	}
	/* FIXME: Check emu->buffer.size before actually writing to it. */
	snd_emu10k1_ptr20_write(emu, 0x13, channel, 0);
	snd_emu10k1_ptr20_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
	snd_emu10k1_ptr20_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size) << 16); // buffer size in bytes
	snd_emu10k1_ptr20_write(emu, CAPTURE_POINTER, channel, 0);
	//snd_emu10k1_ptr20_write(emu, CAPTURE_SOURCE, 0x0, 0x333300e4); /* Select MIC or Line in */
	//snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));

	return 0;
}

static void snd_p16v_intr_enable(struct snd_emu10k1 *emu, unsigned int intrenb)
{
	unsigned long flags;
	unsigned int enable;

	spin_lock_irqsave(&emu->emu_lock, flags);
	enable = inl(emu->port + INTE2) | intrenb;
	outl(enable, emu->port + INTE2);
	spin_unlock_irqrestore(&emu->emu_lock, flags);
}

static void snd_p16v_intr_disable(struct snd_emu10k1 *emu, unsigned int intrenb)
{
	unsigned long flags;
	unsigned int disable;

	spin_lock_irqsave(&emu->emu_lock, flags);
	disable = inl(emu->port + INTE2) & (~intrenb);
	outl(disable, emu->port + INTE2);
	spin_unlock_irqrestore(&emu->emu_lock, flags);
}

/* trigger_playback callback */
static int snd_p16v_pcm_trigger_playback(struct snd_pcm_substream *substream,
				    int cmd)
{
	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
	struct snd_pcm_runtime *runtime;
	struct snd_emu10k1_pcm *epcm;
	int channel;
	int result = 0;
        struct snd_pcm_substream *s;
	u32 basic = 0;
	u32 inte = 0;
	int running = 0;

	switch (cmd) {
	case SNDRV_PCM_TRIGGER_START:
		running=1;
		break;
	case SNDRV_PCM_TRIGGER_STOP:
	default:
		running = 0;
		break;
	}
        snd_pcm_group_for_each_entry(s, substream) {
		if (snd_pcm_substream_chip(s) != emu ||
		    s->stream != SNDRV_PCM_STREAM_PLAYBACK)
			continue;
		runtime = s->runtime;
		epcm = runtime->private_data;
		channel = substream->pcm->device-emu->p16v_device_offset;
		/* snd_printk(KERN_DEBUG "p16v channel=%d\n", channel); */
		epcm->running = running;
		basic |= (0x1<<channel);
		inte |= (INTE2_PLAYBACK_CH_0_LOOP<<channel);
                snd_pcm_trigger_done(s, substream);
        }
	/* snd_printk(KERN_DEBUG "basic=0x%x, inte=0x%x\n", basic, inte); */

	switch (cmd) {
	case SNDRV_PCM_TRIGGER_START:
		snd_p16v_intr_enable(emu, inte);
		snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)| (basic));
		break;
	case SNDRV_PCM_TRIGGER_STOP:
		snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(basic));
		snd_p16v_intr_disable(emu, inte);
		break;
	default:
		result = -EINVAL;
		break;
	}
	return result;
}

/* trigger_capture callback */
static int snd_p16v_pcm_trigger_capture(struct snd_pcm_substream *substream,
                                   int cmd)
{
	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
	struct snd_pcm_runtime *runtime = substream->runtime;
	struct snd_emu10k1_pcm *epcm = runtime->private_data;
	int channel = 0;
	int result = 0;
	u32 inte = INTE2_CAPTURE_CH_0_LOOP | INTE2_CAPTURE_CH_0_HALF_LOOP;

	switch (cmd) {
	case SNDRV_PCM_TRIGGER_START:
		snd_p16v_intr_enable(emu, inte);
		snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
		epcm->running = 1;
		break;
	case SNDRV_PCM_TRIGGER_STOP:
		snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
		snd_p16v_intr_disable(emu, inte);
		//snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
		epcm->running = 0;
		break;
	default:
		result = -EINVAL;
		break;
	}
	return result;
}

/* pointer_playback callback */
static snd_pcm_uframes_t
snd_p16v_pcm_pointer_playback(struct snd_pcm_substream *substream)
{
	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
	struct snd_pcm_runtime *runtime = substream->runtime;
	struct snd_emu10k1_pcm *epcm = runtime->private_data;
	snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
	int channel = substream->pcm->device - emu->p16v_device_offset;
	if (!epcm->running)
		return 0;

	ptr3 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
	ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
	ptr4 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
	if (ptr3 != ptr4) ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
	ptr2 = bytes_to_frames(runtime, ptr1);
	ptr2+= (ptr4 >> 3) * runtime->period_size;
	ptr=ptr2;
        if (ptr >= runtime->buffer_size)
		ptr -= runtime->buffer_size;

	return ptr;
}

/* pointer_capture callback */
static snd_pcm_uframes_t
snd_p16v_pcm_pointer_capture(struct snd_pcm_substream *substream)
{
	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
	struct snd_pcm_runtime *runtime = substream->runtime;
	struct snd_emu10k1_pcm *epcm = runtime->private_data;
	snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
	int channel = 0;

	if (!epcm->running)
		return 0;

	ptr1 = snd_emu10k1_ptr20_read(emu, CAPTURE_POINTER, channel);
	ptr2 = bytes_to_frames(runtime, ptr1);
	ptr=ptr2;
	if (ptr >= runtime->buffer_size) {
		ptr -= runtime->buffer_size;
		printk(KERN_WARNING "buffer capture limited!\n");
	}
	/*
	printk(KERN_DEBUG "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
	       "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
	       ptr1, ptr2, ptr, (int)runtime->buffer_size,
	       (int)runtime->period_size, (int)runtime->frame_bits,
	       (int)runtime->rate);
	*/
	return ptr;
}

/* operators */
static struct snd_pcm_ops snd_p16v_playback_front_ops = {
	.open =        snd_p16v_pcm_open_playback_front,
	.close =       snd_p16v_pcm_close_playback,
	.ioctl =       snd_pcm_lib_ioctl,
	.hw_params =   snd_p16v_pcm_hw_params_playback,
	.hw_free =     snd_p16v_pcm_hw_free_playback,
	.prepare =     snd_p16v_pcm_prepare_playback,
	.trigger =     snd_p16v_pcm_trigger_playback,
	.pointer =     snd_p16v_pcm_pointer_playback,
};

static struct snd_pcm_ops snd_p16v_capture_ops = {
	.open =        snd_p16v_pcm_open_capture,
	.close =       snd_p16v_pcm_close_capture,
	.ioctl =       snd_pcm_lib_ioctl,
	.hw_params =   snd_p16v_pcm_hw_params_capture,
	.hw_free =     snd_p16v_pcm_hw_free_capture,
	.prepare =     snd_p16v_pcm_prepare_capture,
	.trigger =     snd_p16v_pcm_trigger_capture,
	.pointer =     snd_p16v_pcm_pointer_capture,
};


int snd_p16v_free(struct snd_emu10k1 *chip)
{
	// release the data
	if (chip->p16v_buffer.area) {
		snd_dma_free_pages(&chip->p16v_buffer);
		/*
		snd_printk(KERN_DEBUG "period lables free: %p\n",
			   &chip->p16v_buffer);
		*/
	}
	return 0;
}

int snd_p16v_pcm(struct snd_emu10k1 *emu, int device, struct snd_pcm **rpcm)
{
	struct snd_pcm *pcm;
	struct snd_pcm_substream *substream;
	int err;
        int capture=1;
  
	/* snd_printk(KERN_DEBUG "snd_p16v_pcm called. device=%d\n", device); */
	emu->p16v_device_offset = device;
	if (rpcm)
		*rpcm = NULL;

	if ((err = snd_pcm_new(emu->card, "p16v", device, 1, capture, &pcm)) < 0)
		return err;
  
	pcm->private_data = emu;
	// Single playback 8 channel device.
	// Single capture 2 channel device.
	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_p16v_playback_front_ops);
	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_p16v_capture_ops);

	pcm->info_flags = 0;
	pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
	strcpy(pcm->name, "p16v");
	emu->pcm_p16v = pcm;

	for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; 
	    substream; 
	    substream = substream->next) {
		if ((err = snd_pcm_lib_preallocate_pages(substream, 
							 SNDRV_DMA_TYPE_DEV, 
							 snd_dma_pci_data(emu->pci), 
							 ((65536 - 64) * 8), ((65536 - 64) * 8))) < 0) 
			return err;
		/*
		snd_printk(KERN_DEBUG
			   "preallocate playback substream: err=%d\n", err);
		*/
	}

	for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; 
	      substream; 
	      substream = substream->next) {
 		if ((err = snd_pcm_lib_preallocate_pages(substream, 
	                                           SNDRV_DMA_TYPE_DEV, 
	                                           snd_dma_pci_data(emu->pci), 
	                                           65536 - 64, 65536 - 64)) < 0)
			return err;
		/*
		snd_printk(KERN_DEBUG
			   "preallocate capture substream: err=%d\n", err);
		*/
	}
  
	if (rpcm)
		*rpcm = pcm;
  
	return 0;
}

static int snd_p16v_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 = 255;
        return 0;
}

static int snd_p16v_volume_get(struct snd_kcontrol *kcontrol,
			       struct snd_ctl_elem_value *ucontrol)
{
        struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
	int high_low = (kcontrol->private_value >> 8) & 0xff;
	int reg = kcontrol->private_value & 0xff;
	u32 value;

	value = snd_emu10k1_ptr20_read(emu, reg, high_low);
	if (high_low) {
		ucontrol->value.integer.value[0] = 0xff - ((value >> 24) & 0xff); /* Left */
		ucontrol->value.integer.value[1] = 0xff - ((value >> 16) & 0xff); /* Right */
	} else {
		ucontrol->value.integer.value[0] = 0xff - ((value >> 8) & 0xff); /* Left */
		ucontrol->value.integer.value[1] = 0xff - ((value >> 0) & 0xff); /* Right */
	}
	return 0;
}

static int snd_p16v_volume_put(struct snd_kcontrol *kcontrol,
			       struct snd_ctl_elem_value *ucontrol)
{
        struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
	int high_low = (kcontrol->private_value >> 8) & 0xff;
	int reg = kcontrol->private_value & 0xff;
        u32 value, oval;

	oval = value = snd_emu10k1_ptr20_read(emu, reg, 0);
	if (high_low == 1) {
		value &= 0xffff;
		value |= ((0xff - ucontrol->value.integer.value[0]) << 24) |
			((0xff - ucontrol->value.integer.value[1]) << 16);
	} else {
		value &= 0xffff0000;
		value |= ((0xff - ucontrol->value.integer.value[0]) << 8) |
			((0xff - ucontrol->value.integer.value[1]) );
	}
	if (value != oval) {
		snd_emu10k1_ptr20_write(emu, reg, 0, value);
		return 1;
	}
	return 0;
}

static int snd_p16v_capture_source_info(struct snd_kcontrol *kcontrol,
					struct snd_ctl_elem_info *uinfo)
{
	static char *texts[8] = {
		"SPDIF", "I2S", "SRC48", "SRCMulti_SPDIF", "SRCMulti_I2S",
		"CDIF", "FX", "AC97"
	};

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = 8;
	if (uinfo->value.enumerated.item > 7)
                uinfo->value.enumerated.item = 7;
	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
	return 0;
}

static int snd_p16v_capture_source_get(struct snd_kcontrol *kcontrol,
					struct snd_ctl_elem_value *ucontrol)
{
	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);

	ucontrol->value.enumerated.item[0] = emu->p16v_capture_source;
	return 0;
}

static int snd_p16v_capture_source_put(struct snd_kcontrol *kcontrol,
					struct snd_ctl_elem_value *ucontrol)
{
	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
	unsigned int val;
	int change = 0;
	u32 mask;
	u32 source;

	val = ucontrol->value.enumerated.item[0] ;
	if (val > 7)
		return -EINVAL;
	change = (emu->p16v_capture_source != val);
	if (change) {
		emu->p16v_capture_source = val;
		source = (val << 28) | (val << 24) | (val << 20) | (val << 16);
		mask = snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & 0xffff;
		snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, source | mask);
	}
        return change;
}

static int snd_p16v_capture_channel_info(struct snd_kcontrol *kcontrol,
					 struct snd_ctl_elem_info *uinfo)
{
	static char *texts[4] = { "0", "1", "2", "3",  };

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = 4;
	if (uinfo->value.enumerated.item > 3)
                uinfo->value.enumerated.item = 3;
	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
	return 0;
}

static int snd_p16v_capture_channel_get(struct snd_kcontrol *kcontrol,
					struct snd_ctl_elem_value *ucontrol)
{
	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);

	ucontrol->value.enumerated.item[0] = emu->p16v_capture_channel;
	return 0;
}

static int snd_p16v_capture_channel_put(struct snd_kcontrol *kcontrol,
					struct snd_ctl_elem_value *ucontrol)
{
	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
	unsigned int val;
	int change = 0;
	u32 tmp;

	val = ucontrol->value.enumerated.item[0] ;
	if (val > 3)
		return -EINVAL;
	change = (emu->p16v_capture_channel != val);
	if (change) {
		emu->p16v_capture_channel = val;
		tmp = snd_emu10k1_ptr20_read(emu, CAPTURE_P16V_SOURCE, 0) & 0xfffc;
		snd_emu10k1_ptr20_write(emu, CAPTURE_P16V_SOURCE, 0, tmp | val);
	}
        return change;
}
static const DECLARE_TLV_DB_SCALE(snd_p16v_db_scale1, -5175, 25, 1);

#define P16V_VOL(xname,xreg,xhl) { \
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
        .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |             \
                  SNDRV_CTL_ELEM_ACCESS_TLV_READ,               \
	.info = snd_p16v_volume_info, \
	.get = snd_p16v_volume_get, \
	.put = snd_p16v_volume_put, \
	.tlv = { .p = snd_p16v_db_scale1 },	\
	.private_value = ((xreg) | ((xhl) << 8)) \
}

static struct snd_kcontrol_new p16v_mixer_controls[] = {
	P16V_VOL("HD Analog Front Playback Volume", PLAYBACK_VOLUME_MIXER9, 0),
	P16V_VOL("HD Analog Rear Playback Volume", PLAYBACK_VOLUME_MIXER10, 1),
	P16V_VOL("HD Analog Center/LFE Playback Volume", PLAYBACK_VOLUME_MIXER9, 1),
	P16V_VOL("HD Analog Side Playback Volume", PLAYBACK_VOLUME_MIXER10, 0),
	P16V_VOL("HD SPDIF Front Playback Volume", PLAYBACK_VOLUME_MIXER7, 0),
	P16V_VOL("HD SPDIF Rear Playback Volume", PLAYBACK_VOLUME_MIXER8, 1),
	P16V_VOL("HD SPDIF Center/LFE Playback Volume", PLAYBACK_VOLUME_MIXER7, 1),
	P16V_VOL("HD SPDIF Side Playback Volume", PLAYBACK_VOLUME_MIXER8, 0),
	{
		.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
		.name =		"HD source Capture",
		.info =		snd_p16v_capture_source_info,
		.get =		snd_p16v_capture_source_get,
		.put =		snd_p16v_capture_source_put
	},
	{
		.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
		.name =		"HD channel Capture",
		.info =		snd_p16v_capture_channel_info,
		.get =		snd_p16v_capture_channel_get,
		.put =		snd_p16v_capture_channel_put
	},
};


int snd_p16v_mixer(struct snd_emu10k1 *emu)
{
	int i, err;
        struct snd_card *card = emu->card;

	for (i = 0; i < ARRAY_SIZE(p16v_mixer_controls); i++) {
		if ((err = snd_ctl_add(card, snd_ctl_new1(&p16v_mixer_controls[i],
							  emu))) < 0)
			return err;
	}
        return 0;
}

#ifdef CONFIG_PM_SLEEP

#define NUM_CHS	1	/* up to 4, but only first channel is used */

int snd_p16v_alloc_pm_buffer(struct snd_emu10k1 *emu)
{
	emu->p16v_saved = vmalloc(NUM_CHS * 4 * 0x80);
	if (! emu->p16v_saved)
		return -ENOMEM;
	return 0;
}

void snd_p16v_free_pm_buffer(struct snd_emu10k1 *emu)
{
	vfree(emu->p16v_saved);
}

void snd_p16v_suspend(struct snd_emu10k1 *emu)
{
	int i, ch;
	unsigned int *val;

	val = emu->p16v_saved;
	for (ch = 0; ch < NUM_CHS; ch++)
		for (i = 0; i < 0x80; i++, val++)
			*val = snd_emu10k1_ptr20_read(emu, i, ch);
}

void snd_p16v_resume(struct snd_emu10k1 *emu)
{
	int i, ch;
	unsigned int *val;

	val = emu->p16v_saved;
	for (ch = 0; ch < NUM_CHS; ch++)
		for (i = 0; i < 0x80; i++, val++)
			snd_emu10k1_ptr20_write(emu, i, ch, *val);
}
#endif