1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 *  Copyright (c) 2004 James Courtier-Dutton <James@superbug.demon.co.uk>
   4 *  Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit
   5 *  Version: 0.0.25
   6 *
   7 *  FEATURES currently supported:
   8 *    Front, Rear and Center/LFE.
   9 *    Surround40 and Surround51.
  10 *    Capture from MIC an LINE IN input.
  11 *    SPDIF digital playback of PCM stereo and AC3/DTS works.
  12 *    (One can use a standard mono mini-jack to one RCA plugs cable.
  13 *     or one can use a standard stereo mini-jack to two RCA plugs cable.
  14 *     Plug one of the RCA plugs into the Coax input of the external decoder/receiver.)
  15 *    ( In theory one could output 3 different AC3 streams at once, to 3 different SPDIF outputs. )
  16 *    Notes on how to capture sound:
  17 *      The AC97 is used in the PLAYBACK direction.
  18 *      The output from the AC97 chip, instead of reaching the speakers, is fed into the Philips 1361T ADC.
  19 *      So, to record from the MIC, set the MIC Playback volume to max,
  20 *      unmute the MIC and turn up the MASTER Playback volume.
  21 *      So, to prevent feedback when capturing, minimise the "Capture feedback into Playback" volume.
  22 *   
  23 *    The only playback controls that currently do anything are: -
  24 *    Analog Front
  25 *    Analog Rear
  26 *    Analog Center/LFE
  27 *    SPDIF Front
  28 *    SPDIF Rear
  29 *    SPDIF Center/LFE
  30 *   
  31 *    For capture from Mic in or Line in.
  32 *    Digital/Analog ( switch must be in Analog mode for CAPTURE. )
  33 * 
  34 *    CAPTURE feedback into PLAYBACK
  35 * 
  36 *  Changelog:
  37 *    Support interrupts per period.
  38 *    Removed noise from Center/LFE channel when in Analog mode.
  39 *    Rename and remove mixer controls.
  40 *  0.0.6
  41 *    Use separate card based DMA buffer for periods table list.
  42 *  0.0.7
  43 *    Change remove and rename ctrls into lists.
  44 *  0.0.8
  45 *    Try to fix capture sources.
  46 *  0.0.9
  47 *    Fix AC3 output.
  48 *    Enable S32_LE format support.
  49 *  0.0.10
  50 *    Enable playback 48000 and 96000 rates. (Rates other that these do not work, even with "plug:front".)
  51 *  0.0.11
  52 *    Add Model name recognition.
  53 *  0.0.12
  54 *    Correct interrupt timing. interrupt at end of period, instead of in the middle of a playback period.
  55 *    Remove redundent "voice" handling.
  56 *  0.0.13
  57 *    Single trigger call for multi channels.
  58 *  0.0.14
  59 *    Set limits based on what the sound card hardware can do.
  60 *    playback periods_min=2, periods_max=8
  61 *    capture hw constraints require period_size = n * 64 bytes.
  62 *    playback hw constraints require period_size = n * 64 bytes.
  63 *  0.0.15
  64 *    Minor updates.
  65 *  0.0.16
  66 *    Implement 192000 sample rate.
  67 *  0.0.17
  68 *    Add support for SB0410 and SB0413.
  69 *  0.0.18
  70 *    Modified Copyright message.
  71 *  0.0.19
  72 *    Finally fix support for SB Live 24 bit. SB0410 and SB0413.
  73 *    The output codec needs resetting, otherwise all output is muted.
  74 *  0.0.20
  75 *    Merge "pci_disable_device(pci);" fixes.
  76 *  0.0.21
  77 *    Add 4 capture channels. (SPDIF only comes in on channel 0. )
  78 *    Add SPDIF capture using optional digital I/O module for SB Live 24bit. (Analog capture does not yet work.)
  79 *  0.0.22
  80 *    Add support for MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97. From kiksen, bug #901
  81 *  0.0.23
  82 *    Implement support for Line-in capture on SB Live 24bit.
  83 *  0.0.24
  84 *    Add support for mute control on SB Live 24bit (cards w/ SPI DAC)
  85 *  0.0.25
  86 *    Powerdown SPI DAC channels when not in use
  87 *
  88 *  BUGS:
  89 *    Some stability problems when unloading the snd-ca0106 kernel module.
  90 *    --
  91 *
  92 *  TODO:
  93 *    4 Capture channels, only one implemented so far.
  94 *    Other capture rates apart from 48khz not implemented.
  95 *    MIDI
  96 *    --
  97 *  GENERAL INFO:
  98 *    Model: SB0310
  99 *    P17 Chip: CA0106-DAT
 100 *    AC97 Codec: STAC 9721
 101 *    ADC: Philips 1361T (Stereo 24bit)
 102 *    DAC: WM8746EDS (6-channel, 24bit, 192Khz)
 103 *
 104 *  GENERAL INFO:
 105 *    Model: SB0410
 106 *    P17 Chip: CA0106-DAT
 107 *    AC97 Codec: None
 108 *    ADC: WM8775EDS (4 Channel)
 109 *    DAC: CS4382 (114 dB, 24-Bit, 192 kHz, 8-Channel D/A Converter with DSD Support)
 110 *    SPDIF Out control switches between Mic in and SPDIF out.
 111 *    No sound out or mic input working yet.
 112 * 
 113 *  GENERAL INFO:
 114 *    Model: SB0413
 115 *    P17 Chip: CA0106-DAT
 116 *    AC97 Codec: None.
 117 *    ADC: Unknown
 118 *    DAC: Unknown
 119 *    Trying to handle it like the SB0410.
 120 *
 121 *  This code was initially based on code from ALSA's emu10k1x.c which is:
 122 *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
 123 */
 124#include <linux/delay.h>
 125#include <linux/init.h>
 126#include <linux/interrupt.h>
 127#include <linux/pci.h>
 128#include <linux/slab.h>
 129#include <linux/module.h>
 130#include <linux/dma-mapping.h>
 131#include <sound/core.h>
 132#include <sound/initval.h>
 133#include <sound/pcm.h>
 134#include <sound/ac97_codec.h>
 135#include <sound/info.h>
 136
 137MODULE_AUTHOR("James Courtier-Dutton <James@superbug.demon.co.uk>");
 138MODULE_DESCRIPTION("CA0106");
 139MODULE_LICENSE("GPL");
 140MODULE_SUPPORTED_DEVICE("{{Creative,SB CA0106 chip}}");
 141
 142// module parameters (see "Module Parameters")
 143static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
 144static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
 145static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
 146static uint subsystem[SNDRV_CARDS]; /* Force card subsystem model */
 147
 148module_param_array(index, int, NULL, 0444);
 149MODULE_PARM_DESC(index, "Index value for the CA0106 soundcard.");
 150module_param_array(id, charp, NULL, 0444);
 151MODULE_PARM_DESC(id, "ID string for the CA0106 soundcard.");
 152module_param_array(enable, bool, NULL, 0444);
 153MODULE_PARM_DESC(enable, "Enable the CA0106 soundcard.");
 154module_param_array(subsystem, uint, NULL, 0444);
 155MODULE_PARM_DESC(subsystem, "Force card subsystem model.");
 156
 157#include "ca0106.h"
 158
 159static const struct snd_ca0106_details ca0106_chip_details[] = {
 160	 /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
 161	 /* It is really just a normal SB Live 24bit. */
 162	 /* Tested:
 163	  * See ALSA bug#3251
 164	  */
 165	 { .serial = 0x10131102,
 166	   .name   = "X-Fi Extreme Audio [SBxxxx]",
 167	   .gpio_type = 1,
 168	   .i2c_adc = 1 } ,
 169	 /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
 170	 /* It is really just a normal SB Live 24bit. */
 171	 /*
 172 	  * CTRL:CA0111-WTLF
 173	  * ADC: WM8775SEDS
 174	  * DAC: CS4382-KQZ
 175	  */
 176	 /* Tested:
 177	  * Playback on front, rear, center/lfe speakers
 178	  * Capture from Mic in.
 179	  * Not-Tested:
 180	  * Capture from Line in.
 181	  * Playback to digital out.
 182	  */
 183	 { .serial = 0x10121102,
 184	   .name   = "X-Fi Extreme Audio [SB0790]",
 185	   .gpio_type = 1,
 186	   .i2c_adc = 1 } ,
 187	 /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
 188	 /* AudigyLS[SB0310] */
 189	 { .serial = 0x10021102,
 190	   .name   = "AudigyLS [SB0310]",
 191	   .ac97   = 1 } , 
 192	 /* Unknown AudigyLS that also says SB0310 on it */
 193	 { .serial = 0x10051102,
 194	   .name   = "AudigyLS [SB0310b]",
 195	   .ac97   = 1 } ,
 196	 /* New Sound Blaster Live! 7.1 24bit. This does not have an AC97. 53SB041000001 */
 197	 { .serial = 0x10061102,
 198	   .name   = "Live! 7.1 24bit [SB0410]",
 199	   .gpio_type = 1,
 200	   .i2c_adc = 1 } ,
 201	 /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
 202	 { .serial = 0x10071102,
 203	   .name   = "Live! 7.1 24bit [SB0413]",
 204	   .gpio_type = 1,
 205	   .i2c_adc = 1 } ,
 206	 /* New Audigy SE. Has a different DAC. */
 207	 /* SB0570:
 208	  * CTRL:CA0106-DAT
 209	  * ADC: WM8775EDS
 210	  * DAC: WM8768GEDS
 211	  */
 212	 { .serial = 0x100a1102,
 213	   .name   = "Audigy SE [SB0570]",
 214	   .gpio_type = 1,
 215	   .i2c_adc = 1,
 216	   .spi_dac = 0x4021 } ,
 217	 /* New Audigy LS. Has a different DAC. */
 218	 /* SB0570:
 219	  * CTRL:CA0106-DAT
 220	  * ADC: WM8775EDS
 221	  * DAC: WM8768GEDS
 222	  */
 223	 { .serial = 0x10111102,
 224	   .name   = "Audigy SE OEM [SB0570a]",
 225	   .gpio_type = 1,
 226	   .i2c_adc = 1,
 227	   .spi_dac = 0x4021 } ,
 228	/* Sound Blaster 5.1vx
 229	 * Tested: Playback on front, rear, center/lfe speakers
 230	 * Not-Tested: Capture
 231	 */
 232	{ .serial = 0x10041102,
 233	  .name   = "Sound Blaster 5.1vx [SB1070]",
 234	  .gpio_type = 1,
 235	  .i2c_adc = 0,
 236	  .spi_dac = 0x0124
 237	 } ,
 238	 /* MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97 */
 239	 /* SB0438
 240	  * CTRL:CA0106-DAT
 241	  * ADC: WM8775SEDS
 242	  * DAC: CS4382-KQZ
 243	  */
 244	 { .serial = 0x10091462,
 245	   .name   = "MSI K8N Diamond MB [SB0438]",
 246	   .gpio_type = 2,
 247	   .i2c_adc = 1 } ,
 248	 /* MSI K8N Diamond PLUS MB */
 249	 { .serial = 0x10091102,
 250	   .name   = "MSI K8N Diamond MB",
 251	   .gpio_type = 2,
 252	   .i2c_adc = 1,
 253	   .spi_dac = 0x4021 } ,
 254	/* Giga-byte GA-G1975X mobo
 255	 * Novell bnc#395807
 256	 */
 257	/* FIXME: the GPIO and I2C setting aren't tested well */
 258	{ .serial = 0x1458a006,
 259	  .name = "Giga-byte GA-G1975X",
 260	  .gpio_type = 1,
 261	  .i2c_adc = 1 },
 262	 /* Shuttle XPC SD31P which has an onboard Creative Labs
 263	  * Sound Blaster Live! 24-bit EAX
 264	  * high-definition 7.1 audio processor".
 265	  * Added using info from andrewvegan in alsa bug #1298
 266	  */
 267	 { .serial = 0x30381297,
 268	   .name   = "Shuttle XPC SD31P [SD31P]",
 269	   .gpio_type = 1,
 270	   .i2c_adc = 1 } ,
 271	/* Shuttle XPC SD11G5 which has an onboard Creative Labs
 272	 * Sound Blaster Live! 24-bit EAX
 273	 * high-definition 7.1 audio processor".
 274	 * Fixes ALSA bug#1600
 275         */
 276	{ .serial = 0x30411297,
 277	  .name = "Shuttle XPC SD11G5 [SD11G5]",
 278	  .gpio_type = 1,
 279	  .i2c_adc = 1 } ,
 280	 { .serial = 0,
 281	   .name   = "AudigyLS [Unknown]" }
 282};
 283
 284/* hardware definition */
 285static const struct snd_pcm_hardware snd_ca0106_playback_hw = {
 286	.info =			SNDRV_PCM_INFO_MMAP | 
 287				SNDRV_PCM_INFO_INTERLEAVED |
 288				SNDRV_PCM_INFO_BLOCK_TRANSFER |
 289				SNDRV_PCM_INFO_MMAP_VALID |
 290				SNDRV_PCM_INFO_SYNC_START,
 291	.formats =		SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
 292	.rates =		(SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |
 293				 SNDRV_PCM_RATE_192000),
 294	.rate_min =		48000,
 295	.rate_max =		192000,
 296	.channels_min =		2,  //1,
 297	.channels_max =		2,  //6,
 298	.buffer_bytes_max =	((65536 - 64) * 8),
 299	.period_bytes_min =	64,
 300	.period_bytes_max =	(65536 - 64),
 301	.periods_min =		2,
 302	.periods_max =		8,
 303	.fifo_size =		0,
 304};
 305
 306static const struct snd_pcm_hardware snd_ca0106_capture_hw = {
 307	.info =			(SNDRV_PCM_INFO_MMAP | 
 308				 SNDRV_PCM_INFO_INTERLEAVED |
 309				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 310				 SNDRV_PCM_INFO_MMAP_VALID),
 311	.formats =		SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
 312#if 0 /* FIXME: looks like 44.1kHz capture causes noisy output on 48kHz */
 313	.rates =		(SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
 314				 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
 315	.rate_min =		44100,
 316#else
 317	.rates =		(SNDRV_PCM_RATE_48000 |
 318				 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
 319	.rate_min =		48000,
 320#endif /* FIXME */
 321	.rate_max =		192000,
 322	.channels_min =		2,
 323	.channels_max =		2,
 324	.buffer_bytes_max =	65536 - 128,
 325	.period_bytes_min =	64,
 326	.period_bytes_max =	32768 - 64,
 327	.periods_min =		2,
 328	.periods_max =		2,
 329	.fifo_size =		0,
 330};
 331
 332unsigned int snd_ca0106_ptr_read(struct snd_ca0106 * emu, 
 333					  unsigned int reg, 
 334					  unsigned int chn)
 335{
 336	unsigned long flags;
 337	unsigned int regptr, val;
 338  
 339	regptr = (reg << 16) | chn;
 340
 341	spin_lock_irqsave(&emu->emu_lock, flags);
 342	outl(regptr, emu->port + PTR);
 343	val = inl(emu->port + DATA);
 344	spin_unlock_irqrestore(&emu->emu_lock, flags);
 345	return val;
 346}
 347
 348void snd_ca0106_ptr_write(struct snd_ca0106 *emu, 
 349				   unsigned int reg, 
 350				   unsigned int chn, 
 351				   unsigned int data)
 352{
 353	unsigned int regptr;
 354	unsigned long flags;
 355
 356	regptr = (reg << 16) | chn;
 357
 358	spin_lock_irqsave(&emu->emu_lock, flags);
 359	outl(regptr, emu->port + PTR);
 360	outl(data, emu->port + DATA);
 361	spin_unlock_irqrestore(&emu->emu_lock, flags);
 362}
 363
 364int snd_ca0106_spi_write(struct snd_ca0106 * emu,
 365				   unsigned int data)
 366{
 367	unsigned int reset, set;
 368	unsigned int reg, tmp;
 369	int n, result;
 370	reg = SPI;
 371	if (data > 0xffff) /* Only 16bit values allowed */
 372		return 1;
 373	tmp = snd_ca0106_ptr_read(emu, reg, 0);
 374	reset = (tmp & ~0x3ffff) | 0x20000; /* Set xxx20000 */
 375	set = reset | 0x10000; /* Set xxx1xxxx */
 376	snd_ca0106_ptr_write(emu, reg, 0, reset | data);
 377	tmp = snd_ca0106_ptr_read(emu, reg, 0); /* write post */
 378	snd_ca0106_ptr_write(emu, reg, 0, set | data);
 379	result = 1;
 380	/* Wait for status bit to return to 0 */
 381	for (n = 0; n < 100; n++) {
 382		udelay(10);
 383		tmp = snd_ca0106_ptr_read(emu, reg, 0);
 384		if (!(tmp & 0x10000)) {
 385			result = 0;
 386			break;
 387		}
 388	}
 389	if (result) /* Timed out */
 390		return 1;
 391	snd_ca0106_ptr_write(emu, reg, 0, reset | data);
 392	tmp = snd_ca0106_ptr_read(emu, reg, 0); /* Write post */
 393	return 0;
 394}
 395
 396/* The ADC does not support i2c read, so only write is implemented */
 397int snd_ca0106_i2c_write(struct snd_ca0106 *emu,
 398				u32 reg,
 399				u32 value)
 400{
 401	u32 tmp;
 402	int timeout = 0;
 403	int status;
 404	int retry;
 405	if ((reg > 0x7f) || (value > 0x1ff)) {
 406		dev_err(emu->card->dev, "i2c_write: invalid values.\n");
 407		return -EINVAL;
 408	}
 409
 410	tmp = reg << 25 | value << 16;
 411	/*
 412	dev_dbg(emu->card->dev, "I2C-write:reg=0x%x, value=0x%x\n", reg, value);
 413	*/
 414	/* Not sure what this I2C channel controls. */
 415	/* snd_ca0106_ptr_write(emu, I2C_D0, 0, tmp); */
 416
 417	/* This controls the I2C connected to the WM8775 ADC Codec */
 418	snd_ca0106_ptr_write(emu, I2C_D1, 0, tmp);
 419
 420	for (retry = 0; retry < 10; retry++) {
 421		/* Send the data to i2c */
 422		//tmp = snd_ca0106_ptr_read(emu, I2C_A, 0);
 423		//tmp = tmp & ~(I2C_A_ADC_READ|I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD_MASK);
 424		tmp = 0;
 425		tmp = tmp | (I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD);
 426		snd_ca0106_ptr_write(emu, I2C_A, 0, tmp);
 427
 428		/* Wait till the transaction ends */
 429		while (1) {
 430			status = snd_ca0106_ptr_read(emu, I2C_A, 0);
 431			/*dev_dbg(emu->card->dev, "I2C:status=0x%x\n", status);*/
 432			timeout++;
 433			if ((status & I2C_A_ADC_START) == 0)
 434				break;
 435
 436			if (timeout > 1000)
 437				break;
 438		}
 439		//Read back and see if the transaction is successful
 440		if ((status & I2C_A_ADC_ABORT) == 0)
 441			break;
 442	}
 443
 444	if (retry == 10) {
 445		dev_err(emu->card->dev, "Writing to ADC failed!\n");
 446		return -EINVAL;
 447	}
 448    
 449    	return 0;
 450}
 451
 452
 453static void snd_ca0106_intr_enable(struct snd_ca0106 *emu, unsigned int intrenb)
 454{
 455	unsigned long flags;
 456	unsigned int intr_enable;
 457
 458	spin_lock_irqsave(&emu->emu_lock, flags);
 459	intr_enable = inl(emu->port + INTE) | intrenb;
 460	outl(intr_enable, emu->port + INTE);
 461	spin_unlock_irqrestore(&emu->emu_lock, flags);
 462}
 463
 464static void snd_ca0106_intr_disable(struct snd_ca0106 *emu, unsigned int intrenb)
 465{
 466	unsigned long flags;
 467	unsigned int intr_enable;
 468
 469	spin_lock_irqsave(&emu->emu_lock, flags);
 470	intr_enable = inl(emu->port + INTE) & ~intrenb;
 471	outl(intr_enable, emu->port + INTE);
 472	spin_unlock_irqrestore(&emu->emu_lock, flags);
 473}
 474
 475
 476static void snd_ca0106_pcm_free_substream(struct snd_pcm_runtime *runtime)
 477{
 478	kfree(runtime->private_data);
 479}
 480
 481static const int spi_dacd_reg[] = {
 482	SPI_DACD0_REG,
 483	SPI_DACD1_REG,
 484	SPI_DACD2_REG,
 485	0,
 486	SPI_DACD4_REG,
 487};
 488static const int spi_dacd_bit[] = {
 489	SPI_DACD0_BIT,
 490	SPI_DACD1_BIT,
 491	SPI_DACD2_BIT,
 492	0,
 493	SPI_DACD4_BIT,
 494};
 495
 496static void restore_spdif_bits(struct snd_ca0106 *chip, int idx)
 497{
 498	if (chip->spdif_str_bits[idx] != chip->spdif_bits[idx]) {
 499		chip->spdif_str_bits[idx] = chip->spdif_bits[idx];
 500		snd_ca0106_ptr_write(chip, SPCS0 + idx, 0,
 501				     chip->spdif_str_bits[idx]);
 502	}
 503}
 504
 505static int snd_ca0106_channel_dac(struct snd_ca0106 *chip,
 506				  const struct snd_ca0106_details *details,
 507				  int channel_id)
 508{
 509	switch (channel_id) {
 510	case PCM_FRONT_CHANNEL:
 511		return (details->spi_dac & 0xf000) >> (4 * 3);
 512	case PCM_REAR_CHANNEL:
 513		return (details->spi_dac & 0x0f00) >> (4 * 2);
 514	case PCM_CENTER_LFE_CHANNEL:
 515		return (details->spi_dac & 0x00f0) >> (4 * 1);
 516	case PCM_UNKNOWN_CHANNEL:
 517		return (details->spi_dac & 0x000f) >> (4 * 0);
 518	default:
 519		dev_dbg(chip->card->dev, "ca0106: unknown channel_id %d\n",
 520			   channel_id);
 521	}
 522	return 0;
 523}
 524
 525static int snd_ca0106_pcm_power_dac(struct snd_ca0106 *chip, int channel_id,
 526				    int power)
 527{
 528	if (chip->details->spi_dac) {
 529		const int dac = snd_ca0106_channel_dac(chip, chip->details,
 530						       channel_id);
 531		const int reg = spi_dacd_reg[dac];
 532		const int bit = spi_dacd_bit[dac];
 533
 534		if (power)
 535			/* Power up */
 536			chip->spi_dac_reg[reg] &= ~bit;
 537		else
 538			/* Power down */
 539			chip->spi_dac_reg[reg] |= bit;
 540		if (snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]) != 0)
 541			return -ENXIO;
 542	}
 543	return 0;
 544}
 545
 546/* open_playback callback */
 547static int snd_ca0106_pcm_open_playback_channel(struct snd_pcm_substream *substream,
 548						int channel_id)
 549{
 550	struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 551        struct snd_ca0106_channel *channel = &(chip->playback_channels[channel_id]);
 552	struct snd_ca0106_pcm *epcm;
 553	struct snd_pcm_runtime *runtime = substream->runtime;
 554	int err;
 555
 556	epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 557
 558	if (epcm == NULL)
 559		return -ENOMEM;
 560	epcm->emu = chip;
 561	epcm->substream = substream;
 562        epcm->channel_id=channel_id;
 563  
 564	runtime->private_data = epcm;
 565	runtime->private_free = snd_ca0106_pcm_free_substream;
 566  
 567	runtime->hw = snd_ca0106_playback_hw;
 568
 569        channel->emu = chip;
 570        channel->number = channel_id;
 571
 572	channel->use = 1;
 573	/*
 574	dev_dbg(chip->card->dev, "open:channel_id=%d, chip=%p, channel=%p\n",
 575	       channel_id, chip, channel);
 576	*/
 577        //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 578	channel->epcm = epcm;
 579	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 
 580                return err;
 581	if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 
 582                return err;
 583	snd_pcm_set_sync(substream);
 584
 585	/* Front channel dac should already be on */
 586	if (channel_id != PCM_FRONT_CHANNEL) {
 587		err = snd_ca0106_pcm_power_dac(chip, channel_id, 1);
 588		if (err < 0)
 589			return err;
 590	}
 591
 592	restore_spdif_bits(chip, channel_id);
 593
 594	return 0;
 595}
 596
 597/* close callback */
 598static int snd_ca0106_pcm_close_playback(struct snd_pcm_substream *substream)
 599{
 600	struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 601	struct snd_pcm_runtime *runtime = substream->runtime;
 602        struct snd_ca0106_pcm *epcm = runtime->private_data;
 603	chip->playback_channels[epcm->channel_id].use = 0;
 604
 605	restore_spdif_bits(chip, epcm->channel_id);
 606
 607	/* Front channel dac should stay on */
 608	if (epcm->channel_id != PCM_FRONT_CHANNEL) {
 609		int err;
 610		err = snd_ca0106_pcm_power_dac(chip, epcm->channel_id, 0);
 611		if (err < 0)
 612			return err;
 613	}
 614
 615	/* FIXME: maybe zero others */
 616	return 0;
 617}
 618
 619static int snd_ca0106_pcm_open_playback_front(struct snd_pcm_substream *substream)
 620{
 621	return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
 622}
 623
 624static int snd_ca0106_pcm_open_playback_center_lfe(struct snd_pcm_substream *substream)
 625{
 626	return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
 627}
 628
 629static int snd_ca0106_pcm_open_playback_unknown(struct snd_pcm_substream *substream)
 630{
 631	return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
 632}
 633
 634static int snd_ca0106_pcm_open_playback_rear(struct snd_pcm_substream *substream)
 635{
 636	return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
 637}
 638
 639/* open_capture callback */
 640static int snd_ca0106_pcm_open_capture_channel(struct snd_pcm_substream *substream,
 641					       int channel_id)
 642{
 643	struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 644        struct snd_ca0106_channel *channel = &(chip->capture_channels[channel_id]);
 645	struct snd_ca0106_pcm *epcm;
 646	struct snd_pcm_runtime *runtime = substream->runtime;
 647	int err;
 648
 649	epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 650	if (!epcm)
 651		return -ENOMEM;
 652
 653	epcm->emu = chip;
 654	epcm->substream = substream;
 655        epcm->channel_id=channel_id;
 656  
 657	runtime->private_data = epcm;
 658	runtime->private_free = snd_ca0106_pcm_free_substream;
 659  
 660	runtime->hw = snd_ca0106_capture_hw;
 661
 662        channel->emu = chip;
 663        channel->number = channel_id;
 664
 665	channel->use = 1;
 666	/*
 667	dev_dbg(chip->card->dev, "open:channel_id=%d, chip=%p, channel=%p\n",
 668	       channel_id, chip, channel);
 669	*/
 670        //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 671        channel->epcm = epcm;
 672	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 
 673                return err;
 674	//snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
 675	if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 
 676                return err;
 677	return 0;
 678}
 679
 680/* close callback */
 681static int snd_ca0106_pcm_close_capture(struct snd_pcm_substream *substream)
 682{
 683	struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 684	struct snd_pcm_runtime *runtime = substream->runtime;
 685        struct snd_ca0106_pcm *epcm = runtime->private_data;
 686	chip->capture_channels[epcm->channel_id].use = 0;
 687	/* FIXME: maybe zero others */
 688	return 0;
 689}
 690
 691static int snd_ca0106_pcm_open_0_capture(struct snd_pcm_substream *substream)
 692{
 693	return snd_ca0106_pcm_open_capture_channel(substream, 0);
 694}
 695
 696static int snd_ca0106_pcm_open_1_capture(struct snd_pcm_substream *substream)
 697{
 698	return snd_ca0106_pcm_open_capture_channel(substream, 1);
 699}
 700
 701static int snd_ca0106_pcm_open_2_capture(struct snd_pcm_substream *substream)
 702{
 703	return snd_ca0106_pcm_open_capture_channel(substream, 2);
 704}
 705
 706static int snd_ca0106_pcm_open_3_capture(struct snd_pcm_substream *substream)
 707{
 708	return snd_ca0106_pcm_open_capture_channel(substream, 3);
 709}
 710
 711/* prepare playback callback */
 712static int snd_ca0106_pcm_prepare_playback(struct snd_pcm_substream *substream)
 713{
 714	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 715	struct snd_pcm_runtime *runtime = substream->runtime;
 716	struct snd_ca0106_pcm *epcm = runtime->private_data;
 717	int channel = epcm->channel_id;
 718	u32 *table_base = (u32 *)(emu->buffer.area+(8*16*channel));
 719	u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
 720	u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
 721	u32 hcfg_set = 0x00000000;
 722	u32 hcfg;
 723	u32 reg40_mask = 0x30000 << (channel<<1);
 724	u32 reg40_set = 0;
 725	u32 reg40;
 726	/* FIXME: Depending on mixer selection of SPDIF out or not, select the spdif rate or the DAC rate. */
 727	u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
 728	u32 reg71_set = 0;
 729	u32 reg71;
 730	int i;
 731	
 732#if 0 /* debug */
 733	dev_dbg(emu->card->dev,
 734		   "prepare:channel_number=%d, rate=%d, format=0x%x, "
 735		   "channels=%d, buffer_size=%ld, period_size=%ld, "
 736		   "periods=%u, frames_to_bytes=%d\n",
 737		   channel, runtime->rate, runtime->format,
 738		   runtime->channels, runtime->buffer_size,
 739		   runtime->period_size, runtime->periods,
 740		   frames_to_bytes(runtime, 1));
 741	dev_dbg(emu->card->dev,
 742		"dma_addr=%x, dma_area=%p, table_base=%p\n",
 743		   runtime->dma_addr, runtime->dma_area, table_base);
 744	dev_dbg(emu->card->dev,
 745		"dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
 746		   emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 747#endif /* debug */
 748	/* Rate can be set per channel. */
 749	/* reg40 control host to fifo */
 750	/* reg71 controls DAC rate. */
 751	switch (runtime->rate) {
 752	case 44100:
 753		reg40_set = 0x10000 << (channel<<1);
 754		reg71_set = 0x01010000; 
 755		break;
 756        case 48000:
 757		reg40_set = 0;
 758		reg71_set = 0; 
 759		break;
 760	case 96000:
 761		reg40_set = 0x20000 << (channel<<1);
 762		reg71_set = 0x02020000; 
 763		break;
 764	case 192000:
 765		reg40_set = 0x30000 << (channel<<1);
 766		reg71_set = 0x03030000; 
 767		break;
 768	default:
 769		reg40_set = 0;
 770		reg71_set = 0; 
 771		break;
 772	}
 773	/* Format is a global setting */
 774	/* FIXME: Only let the first channel accessed set this. */
 775	switch (runtime->format) {
 776	case SNDRV_PCM_FORMAT_S16_LE:
 777		hcfg_set = 0;
 778		break;
 779	case SNDRV_PCM_FORMAT_S32_LE:
 780		hcfg_set = HCFG_PLAYBACK_S32_LE;
 781		break;
 782	default:
 783		hcfg_set = 0;
 784		break;
 785	}
 786	hcfg = inl(emu->port + HCFG) ;
 787	hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 788	outl(hcfg, emu->port + HCFG);
 789	reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
 790	reg40 = (reg40 & ~reg40_mask) | reg40_set;
 791	snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
 792	reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 793	reg71 = (reg71 & ~reg71_mask) | reg71_set;
 794	snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 795
 796	/* FIXME: Check emu->buffer.size before actually writing to it. */
 797        for(i=0; i < runtime->periods; i++) {
 798		table_base[i*2] = runtime->dma_addr + (i * period_size_bytes);
 799		table_base[i*2+1] = period_size_bytes << 16;
 800	}
 801 
 802	snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
 803	snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
 804	snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
 805	snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
 806	snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
 807	/* FIXME  test what 0 bytes does. */
 808	snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
 809	snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
 810	snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
 811	snd_ca0106_ptr_write(emu, 0x08, channel, 0);
 812        snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
 813#if 0
 814	snd_ca0106_ptr_write(emu, SPCS0, 0,
 815			       SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
 816			       SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
 817			       SPCS_GENERATIONSTATUS | 0x00001200 |
 818			       0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
 819#endif
 820
 821	return 0;
 822}
 823
 824/* prepare capture callback */
 825static int snd_ca0106_pcm_prepare_capture(struct snd_pcm_substream *substream)
 826{
 827	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 828	struct snd_pcm_runtime *runtime = substream->runtime;
 829	struct snd_ca0106_pcm *epcm = runtime->private_data;
 830	int channel = epcm->channel_id;
 831	u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
 832	u32 hcfg_set = 0x00000000;
 833	u32 hcfg;
 834	u32 over_sampling=0x2;
 835	u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
 836	u32 reg71_set = 0;
 837	u32 reg71;
 838	
 839#if 0 /* debug */
 840	dev_dbg(emu->card->dev,
 841		   "prepare:channel_number=%d, rate=%d, format=0x%x, "
 842		   "channels=%d, buffer_size=%ld, period_size=%ld, "
 843		   "periods=%u, frames_to_bytes=%d\n",
 844		   channel, runtime->rate, runtime->format,
 845		   runtime->channels, runtime->buffer_size,
 846		   runtime->period_size, runtime->periods,
 847		   frames_to_bytes(runtime, 1));
 848	dev_dbg(emu->card->dev,
 849		"dma_addr=%x, dma_area=%p, table_base=%p\n",
 850		   runtime->dma_addr, runtime->dma_area, table_base);
 851	dev_dbg(emu->card->dev,
 852		"dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
 853		   emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 854#endif /* debug */
 855	/* reg71 controls ADC rate. */
 856	switch (runtime->rate) {
 857	case 44100:
 858		reg71_set = 0x00004000;
 859		break;
 860        case 48000:
 861		reg71_set = 0; 
 862		break;
 863	case 96000:
 864		reg71_set = 0x00008000;
 865		over_sampling=0xa;
 866		break;
 867	case 192000:
 868		reg71_set = 0x0000c000; 
 869		over_sampling=0xa;
 870		break;
 871	default:
 872		reg71_set = 0; 
 873		break;
 874	}
 875	/* Format is a global setting */
 876	/* FIXME: Only let the first channel accessed set this. */
 877	switch (runtime->format) {
 878	case SNDRV_PCM_FORMAT_S16_LE:
 879		hcfg_set = 0;
 880		break;
 881	case SNDRV_PCM_FORMAT_S32_LE:
 882		hcfg_set = HCFG_CAPTURE_S32_LE;
 883		break;
 884	default:
 885		hcfg_set = 0;
 886		break;
 887	}
 888	hcfg = inl(emu->port + HCFG) ;
 889	hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 890	outl(hcfg, emu->port + HCFG);
 891	reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 892	reg71 = (reg71 & ~reg71_mask) | reg71_set;
 893	snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 894        if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
 895	        snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
 896	}
 897
 898
 899	/*
 900	dev_dbg(emu->card->dev,
 901	       "prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, "
 902	       "buffer_size=%ld, period_size=%ld, frames_to_bytes=%d\n",
 903	       channel, runtime->rate, runtime->format, runtime->channels,
 904	       runtime->buffer_size, runtime->period_size,
 905	       frames_to_bytes(runtime, 1));
 906	*/
 907	snd_ca0106_ptr_write(emu, 0x13, channel, 0);
 908	snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
 909	snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
 910	snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
 911
 912	return 0;
 913}
 914
 915/* trigger_playback callback */
 916static int snd_ca0106_pcm_trigger_playback(struct snd_pcm_substream *substream,
 917				    int cmd)
 918{
 919	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 920	struct snd_pcm_runtime *runtime;
 921	struct snd_ca0106_pcm *epcm;
 922	int channel;
 923	int result = 0;
 924        struct snd_pcm_substream *s;
 925	u32 basic = 0;
 926	u32 extended = 0;
 927	u32 bits;
 928	int running = 0;
 929
 930	switch (cmd) {
 931	case SNDRV_PCM_TRIGGER_START:
 932	case SNDRV_PCM_TRIGGER_RESUME:
 933		running = 1;
 934		break;
 935	case SNDRV_PCM_TRIGGER_STOP:
 936	case SNDRV_PCM_TRIGGER_SUSPEND:
 937	default:
 938		running = 0;
 939		break;
 940	}
 941        snd_pcm_group_for_each_entry(s, substream) {
 942		if (snd_pcm_substream_chip(s) != emu ||
 943		    s->stream != SNDRV_PCM_STREAM_PLAYBACK)
 944			continue;
 945		runtime = s->runtime;
 946		epcm = runtime->private_data;
 947		channel = epcm->channel_id;
 948		/* dev_dbg(emu->card->dev, "channel=%d\n", channel); */
 949		epcm->running = running;
 950		basic |= (0x1 << channel);
 951		extended |= (0x10 << channel);
 952                snd_pcm_trigger_done(s, substream);
 953        }
 954	/* dev_dbg(emu->card->dev, "basic=0x%x, extended=0x%x\n",basic, extended); */
 955
 956	switch (cmd) {
 957	case SNDRV_PCM_TRIGGER_START:
 958	case SNDRV_PCM_TRIGGER_RESUME:
 959		bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
 960		bits |= extended;
 961		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
 962		bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
 963		bits |= basic;
 964		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
 965		break;
 966	case SNDRV_PCM_TRIGGER_STOP:
 967	case SNDRV_PCM_TRIGGER_SUSPEND:
 968		bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
 969		bits &= ~basic;
 970		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
 971		bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
 972		bits &= ~extended;
 973		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
 974		break;
 975	default:
 976		result = -EINVAL;
 977		break;
 978	}
 979	return result;
 980}
 981
 982/* trigger_capture callback */
 983static int snd_ca0106_pcm_trigger_capture(struct snd_pcm_substream *substream,
 984				    int cmd)
 985{
 986	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 987	struct snd_pcm_runtime *runtime = substream->runtime;
 988	struct snd_ca0106_pcm *epcm = runtime->private_data;
 989	int channel = epcm->channel_id;
 990	int result = 0;
 991
 992	switch (cmd) {
 993	case SNDRV_PCM_TRIGGER_START:
 994		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
 995		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
 996		epcm->running = 1;
 997		break;
 998	case SNDRV_PCM_TRIGGER_STOP:
 999		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
1000		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
1001		epcm->running = 0;
1002		break;
1003	default:
1004		result = -EINVAL;
1005		break;
1006	}
1007	return result;
1008}
1009
1010/* pointer_playback callback */
1011static snd_pcm_uframes_t
1012snd_ca0106_pcm_pointer_playback(struct snd_pcm_substream *substream)
1013{
1014	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1015	struct snd_pcm_runtime *runtime = substream->runtime;
1016	struct snd_ca0106_pcm *epcm = runtime->private_data;
1017	unsigned int ptr, prev_ptr;
1018	int channel = epcm->channel_id;
1019	int timeout = 10;
1020
1021	if (!epcm->running)
1022		return 0;
1023
1024	prev_ptr = -1;
1025	do {
1026		ptr = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
1027		ptr = (ptr >> 3) * runtime->period_size;
1028		ptr += bytes_to_frames(runtime,
1029			snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel));
1030		if (ptr >= runtime->buffer_size)
1031			ptr -= runtime->buffer_size;
1032		if (prev_ptr == ptr)
1033			return ptr;
1034		prev_ptr = ptr;
1035	} while (--timeout);
1036	dev_warn(emu->card->dev, "ca0106: unstable DMA pointer!\n");
1037	return 0;
1038}
1039
1040/* pointer_capture callback */
1041static snd_pcm_uframes_t
1042snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream *substream)
1043{
1044	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1045	struct snd_pcm_runtime *runtime = substream->runtime;
1046	struct snd_ca0106_pcm *epcm = runtime->private_data;
1047	snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
1048	int channel = epcm->channel_id;
1049
1050	if (!epcm->running)
1051		return 0;
1052
1053	ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
1054	ptr2 = bytes_to_frames(runtime, ptr1);
1055	ptr=ptr2;
1056        if (ptr >= runtime->buffer_size)
1057		ptr -= runtime->buffer_size;
1058	/*
1059	dev_dbg(emu->card->dev, "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
1060	       "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
1061	       ptr1, ptr2, ptr, (int)runtime->buffer_size,
1062	       (int)runtime->period_size, (int)runtime->frame_bits,
1063	       (int)runtime->rate);
1064	*/
1065	return ptr;
1066}
1067
1068/* operators */
1069static const struct snd_pcm_ops snd_ca0106_playback_front_ops = {
1070	.open =        snd_ca0106_pcm_open_playback_front,
1071	.close =       snd_ca0106_pcm_close_playback,
1072	.prepare =     snd_ca0106_pcm_prepare_playback,
1073	.trigger =     snd_ca0106_pcm_trigger_playback,
1074	.pointer =     snd_ca0106_pcm_pointer_playback,
1075};
1076
1077static const struct snd_pcm_ops snd_ca0106_capture_0_ops = {
1078	.open =        snd_ca0106_pcm_open_0_capture,
1079	.close =       snd_ca0106_pcm_close_capture,
1080	.prepare =     snd_ca0106_pcm_prepare_capture,
1081	.trigger =     snd_ca0106_pcm_trigger_capture,
1082	.pointer =     snd_ca0106_pcm_pointer_capture,
1083};
1084
1085static const struct snd_pcm_ops snd_ca0106_capture_1_ops = {
1086	.open =        snd_ca0106_pcm_open_1_capture,
1087	.close =       snd_ca0106_pcm_close_capture,
1088	.prepare =     snd_ca0106_pcm_prepare_capture,
1089	.trigger =     snd_ca0106_pcm_trigger_capture,
1090	.pointer =     snd_ca0106_pcm_pointer_capture,
1091};
1092
1093static const struct snd_pcm_ops snd_ca0106_capture_2_ops = {
1094	.open =        snd_ca0106_pcm_open_2_capture,
1095	.close =       snd_ca0106_pcm_close_capture,
1096	.prepare =     snd_ca0106_pcm_prepare_capture,
1097	.trigger =     snd_ca0106_pcm_trigger_capture,
1098	.pointer =     snd_ca0106_pcm_pointer_capture,
1099};
1100
1101static const struct snd_pcm_ops snd_ca0106_capture_3_ops = {
1102	.open =        snd_ca0106_pcm_open_3_capture,
1103	.close =       snd_ca0106_pcm_close_capture,
1104	.prepare =     snd_ca0106_pcm_prepare_capture,
1105	.trigger =     snd_ca0106_pcm_trigger_capture,
1106	.pointer =     snd_ca0106_pcm_pointer_capture,
1107};
1108
1109static const struct snd_pcm_ops snd_ca0106_playback_center_lfe_ops = {
1110        .open =         snd_ca0106_pcm_open_playback_center_lfe,
1111        .close =        snd_ca0106_pcm_close_playback,
1112        .prepare =      snd_ca0106_pcm_prepare_playback,     
1113        .trigger =      snd_ca0106_pcm_trigger_playback,  
1114        .pointer =      snd_ca0106_pcm_pointer_playback, 
1115};
1116
1117static const struct snd_pcm_ops snd_ca0106_playback_unknown_ops = {
1118        .open =         snd_ca0106_pcm_open_playback_unknown,
1119        .close =        snd_ca0106_pcm_close_playback,
1120        .prepare =      snd_ca0106_pcm_prepare_playback,     
1121        .trigger =      snd_ca0106_pcm_trigger_playback,  
1122        .pointer =      snd_ca0106_pcm_pointer_playback, 
1123};
1124
1125static const struct snd_pcm_ops snd_ca0106_playback_rear_ops = {
1126        .open =         snd_ca0106_pcm_open_playback_rear,
1127        .close =        snd_ca0106_pcm_close_playback,
1128        .prepare =      snd_ca0106_pcm_prepare_playback,     
1129        .trigger =      snd_ca0106_pcm_trigger_playback,  
1130        .pointer =      snd_ca0106_pcm_pointer_playback, 
1131};
1132
1133
1134static unsigned short snd_ca0106_ac97_read(struct snd_ac97 *ac97,
1135					     unsigned short reg)
1136{
1137	struct snd_ca0106 *emu = ac97->private_data;
1138	unsigned long flags;
1139	unsigned short val;
1140
1141	spin_lock_irqsave(&emu->emu_lock, flags);
1142	outb(reg, emu->port + AC97ADDRESS);
1143	val = inw(emu->port + AC97DATA);
1144	spin_unlock_irqrestore(&emu->emu_lock, flags);
1145	return val;
1146}
1147
1148static void snd_ca0106_ac97_write(struct snd_ac97 *ac97,
1149				    unsigned short reg, unsigned short val)
1150{
1151	struct snd_ca0106 *emu = ac97->private_data;
1152	unsigned long flags;
1153  
1154	spin_lock_irqsave(&emu->emu_lock, flags);
1155	outb(reg, emu->port + AC97ADDRESS);
1156	outw(val, emu->port + AC97DATA);
1157	spin_unlock_irqrestore(&emu->emu_lock, flags);
1158}
1159
1160static int snd_ca0106_ac97(struct snd_ca0106 *chip)
1161{
1162	struct snd_ac97_bus *pbus;
1163	struct snd_ac97_template ac97;
1164	int err;
1165	static const struct snd_ac97_bus_ops ops = {
1166		.write = snd_ca0106_ac97_write,
1167		.read = snd_ca0106_ac97_read,
1168	};
1169  
1170	if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
 
1171		return err;
1172	pbus->no_vra = 1; /* we don't need VRA */
1173
1174	memset(&ac97, 0, sizeof(ac97));
1175	ac97.private_data = chip;
1176	ac97.scaps = AC97_SCAP_NO_SPDIF;
1177	return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1178}
1179
1180static void ca0106_stop_chip(struct snd_ca0106 *chip);
1181
1182static int snd_ca0106_free(struct snd_ca0106 *chip)
1183{
1184	if (chip->res_port != NULL) {
1185		/* avoid access to already used hardware */
1186		ca0106_stop_chip(chip);
1187	}
1188	if (chip->irq >= 0)
1189		free_irq(chip->irq, chip);
1190	// release the data
1191#if 1
1192	if (chip->buffer.area)
1193		snd_dma_free_pages(&chip->buffer);
1194#endif
1195
1196	// release the i/o port
1197	release_and_free_resource(chip->res_port);
1198
1199	pci_disable_device(chip->pci);
1200	kfree(chip);
1201	return 0;
1202}
1203
1204static int snd_ca0106_dev_free(struct snd_device *device)
1205{
1206	struct snd_ca0106 *chip = device->device_data;
1207	return snd_ca0106_free(chip);
1208}
1209
1210static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
1211{
1212	unsigned int status;
1213
1214	struct snd_ca0106 *chip = dev_id;
1215	int i;
1216	int mask;
1217        unsigned int stat76;
1218	struct snd_ca0106_channel *pchannel;
1219
1220	status = inl(chip->port + IPR);
1221	if (! status)
1222		return IRQ_NONE;
1223
1224        stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1225	/*
1226	dev_dbg(emu->card->dev, "interrupt status = 0x%08x, stat76=0x%08x\n",
1227		   status, stat76);
1228	dev_dbg(emu->card->dev, "ptr=0x%08x\n",
1229		   snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1230	*/
1231        mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1232	for(i = 0; i < 4; i++) {
1233		pchannel = &(chip->playback_channels[i]);
1234		if (stat76 & mask) {
1235/* FIXME: Select the correct substream for period elapsed */
1236			if(pchannel->use) {
1237				snd_pcm_period_elapsed(pchannel->epcm->substream);
1238				/* dev_dbg(emu->card->dev, "interrupt [%d] used\n", i); */
1239                        }
1240		}
1241		/*
1242		dev_dbg(emu->card->dev, "channel=%p\n", pchannel);
1243		dev_dbg(emu->card->dev, "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1244		*/
1245		mask <<= 1;
1246	}
1247        mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1248	for(i = 0; i < 4; i++) {
1249		pchannel = &(chip->capture_channels[i]);
1250		if (stat76 & mask) {
1251/* FIXME: Select the correct substream for period elapsed */
1252			if(pchannel->use) {
1253				snd_pcm_period_elapsed(pchannel->epcm->substream);
1254				/* dev_dbg(emu->card->dev, "interrupt [%d] used\n", i); */
1255                        }
1256		}
1257		/*
1258		dev_dbg(emu->card->dev, "channel=%p\n", pchannel);
1259		dev_dbg(emu->card->dev, "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1260		*/
1261		mask <<= 1;
1262	}
1263
1264        snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1265
1266	if (chip->midi.dev_id &&
1267	    (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1268		if (chip->midi.interrupt)
1269			chip->midi.interrupt(&chip->midi, status);
1270		else
1271			chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1272	}
1273
1274	// acknowledge the interrupt if necessary
1275	outl(status, chip->port+IPR);
1276
1277	return IRQ_HANDLED;
1278}
1279
1280static const struct snd_pcm_chmap_elem surround_map[] = {
1281	{ .channels = 2,
1282	  .map = { SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
1283	{ }
1284};
1285
1286static const struct snd_pcm_chmap_elem clfe_map[] = {
1287	{ .channels = 2,
1288	  .map = { SNDRV_CHMAP_FC, SNDRV_CHMAP_LFE } },
1289	{ }
1290};
1291
1292static const struct snd_pcm_chmap_elem side_map[] = {
1293	{ .channels = 2,
1294	  .map = { SNDRV_CHMAP_SL, SNDRV_CHMAP_SR } },
1295	{ }
1296};
1297
1298static int snd_ca0106_pcm(struct snd_ca0106 *emu, int device)
1299{
1300	struct snd_pcm *pcm;
1301	struct snd_pcm_substream *substream;
1302	const struct snd_pcm_chmap_elem *map = NULL;
1303	int err;
1304  
1305	err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm);
1306	if (err < 0)
1307		return err;
1308  
1309	pcm->private_data = emu;
1310
1311	switch (device) {
1312	case 0:
1313	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1314	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1315	  map = snd_pcm_std_chmaps;
1316          break;
1317	case 1:
1318	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1319	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1320	  map = surround_map;
1321          break;
1322	case 2:
1323	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1324	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1325	  map = clfe_map;
1326          break;
1327	case 3:
1328	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1329	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1330	  map = side_map;
1331          break;
1332        }
1333
1334	pcm->info_flags = 0;
1335	strcpy(pcm->name, "CA0106");
1336
1337	for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; 
1338	    substream; 
1339	    substream = substream->next) {
1340		snd_pcm_set_managed_buffer(substream, SNDRV_DMA_TYPE_DEV,
1341					   &emu->pci->dev,
1342					   64*1024, 64*1024);
1343	}
1344
1345	for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; 
1346	      substream; 
1347	      substream = substream->next) {
1348		snd_pcm_set_managed_buffer(substream, SNDRV_DMA_TYPE_DEV,
1349					   &emu->pci->dev,
1350					   64*1024, 64*1024);
1351	}
1352  
1353	err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK, map, 2,
1354				     1 << 2, NULL);
1355	if (err < 0)
1356		return err;
1357
1358	emu->pcm[device] = pcm;
1359  
1360	return 0;
1361}
1362
1363#define SPI_REG(reg, value)	(((reg) << SPI_REG_SHIFT) | (value))
1364static const unsigned int spi_dac_init[] = {
1365	SPI_REG(SPI_LDA1_REG,	SPI_DA_BIT_0dB), /* 0dB dig. attenuation */
1366	SPI_REG(SPI_RDA1_REG,	SPI_DA_BIT_0dB),
1367	SPI_REG(SPI_PL_REG,	SPI_PL_BIT_L_L | SPI_PL_BIT_R_R | SPI_IZD_BIT),
1368	SPI_REG(SPI_FMT_REG,	SPI_FMT_BIT_I2S | SPI_IWL_BIT_24),
1369	SPI_REG(SPI_LDA2_REG,	SPI_DA_BIT_0dB),
1370	SPI_REG(SPI_RDA2_REG,	SPI_DA_BIT_0dB),
1371	SPI_REG(SPI_LDA3_REG,	SPI_DA_BIT_0dB),
1372	SPI_REG(SPI_RDA3_REG,	SPI_DA_BIT_0dB),
1373	SPI_REG(SPI_MASTDA_REG,	SPI_DA_BIT_0dB),
1374	SPI_REG(9,		0x00),
1375	SPI_REG(SPI_MS_REG,	SPI_DACD0_BIT | SPI_DACD1_BIT | SPI_DACD2_BIT),
1376	SPI_REG(12,		0x00),
1377	SPI_REG(SPI_LDA4_REG,	SPI_DA_BIT_0dB),
1378	SPI_REG(SPI_RDA4_REG,	SPI_DA_BIT_0dB | SPI_DA_BIT_UPDATE),
1379	SPI_REG(SPI_DACD4_REG,	SPI_DACD4_BIT),
1380};
1381
1382static const unsigned int i2c_adc_init[][2] = {
1383	{ 0x17, 0x00 }, /* Reset */
1384	{ 0x07, 0x00 }, /* Timeout */
1385	{ 0x0b, 0x22 },  /* Interface control */
1386	{ 0x0c, 0x22 },  /* Master mode control */
1387	{ 0x0d, 0x08 },  /* Powerdown control */
1388	{ 0x0e, 0xcf },  /* Attenuation Left  0x01 = -103dB, 0xff = 24dB */
1389	{ 0x0f, 0xcf },  /* Attenuation Right 0.5dB steps */
1390	{ 0x10, 0x7b },  /* ALC Control 1 */
1391	{ 0x11, 0x00 },  /* ALC Control 2 */
1392	{ 0x12, 0x32 },  /* ALC Control 3 */
1393	{ 0x13, 0x00 },  /* Noise gate control */
1394	{ 0x14, 0xa6 },  /* Limiter control */
1395	{ 0x15, ADC_MUX_LINEIN },  /* ADC Mixer control */
1396};
1397
1398static void ca0106_init_chip(struct snd_ca0106 *chip, int resume)
1399{
1400	int ch;
1401	unsigned int def_bits;
1402
1403	outl(0, chip->port + INTE);
1404
1405	/*
1406	 *  Init to 0x02109204 :
1407	 *  Clock accuracy    = 0     (1000ppm)
1408	 *  Sample Rate       = 2     (48kHz)
1409	 *  Audio Channel     = 1     (Left of 2)
1410	 *  Source Number     = 0     (Unspecified)
1411	 *  Generation Status = 1     (Original for Cat Code 12)
1412	 *  Cat Code          = 12    (Digital Signal Mixer)
1413	 *  Mode              = 0     (Mode 0)
1414	 *  Emphasis          = 0     (None)
1415	 *  CP                = 1     (Copyright unasserted)
1416	 *  AN                = 0     (Audio data)
1417	 *  P                 = 0     (Consumer)
1418	 */
1419	def_bits =
1420		SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1421		SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1422		SPCS_GENERATIONSTATUS | 0x00001200 |
1423		0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT;
1424	if (!resume) {
1425		chip->spdif_str_bits[0] = chip->spdif_bits[0] = def_bits;
1426		chip->spdif_str_bits[1] = chip->spdif_bits[1] = def_bits;
1427		chip->spdif_str_bits[2] = chip->spdif_bits[2] = def_bits;
1428		chip->spdif_str_bits[3] = chip->spdif_bits[3] = def_bits;
1429	}
1430	/* Only SPCS1 has been tested */
1431	snd_ca0106_ptr_write(chip, SPCS1, 0, chip->spdif_str_bits[1]);
1432	snd_ca0106_ptr_write(chip, SPCS0, 0, chip->spdif_str_bits[0]);
1433	snd_ca0106_ptr_write(chip, SPCS2, 0, chip->spdif_str_bits[2]);
1434	snd_ca0106_ptr_write(chip, SPCS3, 0, chip->spdif_str_bits[3]);
1435
1436        snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1437        snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1438
1439        /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1440        outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
1441        outw(0x8000, chip->port + AC97DATA);
1442#if 0 /* FIXME: what are these? */
1443	snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1444	snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1445	snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1446	snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1447#endif
1448
1449	/* OSS drivers set this. */
1450	/* snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); */
1451
1452	/* Analog or Digital output */
1453	snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1454	/* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers.
1455	 * Use 0x000f0000 for surround71
1456	 */
1457	snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000);
1458
1459	chip->spdif_enable = 0; /* Set digital SPDIF output off */
1460	/*snd_ca0106_ptr_write(chip, 0x45, 0, 0);*/ /* Analogue out */
1461	/*snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00);*/ /* Digital out */
1462
1463	/* goes to 0x40c80000 when doing SPDIF IN/OUT */
1464	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000);
1465	/* (Mute) CAPTURE feedback into PLAYBACK volume.
1466	 * Only lower 16 bits matter.
1467	 */
1468	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff);
1469	/* SPDIF IN Volume */
1470	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000);
1471	/* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1472	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000);
1473
1474	snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1475	snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1476	snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1477	snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1478
1479	for (ch = 0; ch < 4; ch++) {
1480		/* Only high 16 bits matter */
1481		snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030);
1482		snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1483#if 0 /* Mute */
1484		snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040);
1485		snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040);
1486		snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff);
1487		snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff);
1488#endif
1489	}
1490	if (chip->details->i2c_adc == 1) {
1491	        /* Select MIC, Line in, TAD in, AUX in */
1492	        snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1493		/* Default to CAPTURE_SOURCE to i2s in */
1494		if (!resume)
1495			chip->capture_source = 3;
1496	} else if (chip->details->ac97 == 1) {
1497	        /* Default to AC97 in */
1498	        snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x444400e4);
1499		/* Default to CAPTURE_SOURCE to AC97 in */
1500		if (!resume)
1501			chip->capture_source = 4;
1502	} else {
1503	        /* Select MIC, Line in, TAD in, AUX in */
1504	        snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1505		/* Default to Set CAPTURE_SOURCE to i2s in */
1506		if (!resume)
1507			chip->capture_source = 3;
1508	}
1509
1510	if (chip->details->gpio_type == 2) {
1511		/* The SB0438 use GPIO differently. */
1512		/* FIXME: Still need to find out what the other GPIO bits do.
1513		 * E.g. For digital spdif out.
1514		 */
1515		outl(0x0, chip->port+GPIO);
1516		/* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1517		outl(0x005f5301, chip->port+GPIO); /* Analog */
1518	} else if (chip->details->gpio_type == 1) {
1519		/* The SB0410 and SB0413 use GPIO differently. */
1520		/* FIXME: Still need to find out what the other GPIO bits do.
1521		 * E.g. For digital spdif out.
1522		 */
1523		outl(0x0, chip->port+GPIO);
1524		/* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1525		outl(0x005f5301, chip->port+GPIO); /* Analog */
1526	} else {
1527		outl(0x0, chip->port+GPIO);
1528		outl(0x005f03a3, chip->port+GPIO); /* Analog */
1529		/* outl(0x005f02a2, chip->port+GPIO); */ /* SPDIF */
1530	}
1531	snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1532
1533	/* outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG); */
1534	/* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1535	/* outl(0x00001409, chip->port+HCFG); */
1536	/* outl(0x00000009, chip->port+HCFG); */
1537	/* AC97 2.0, Enable outputs. */
1538	outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG);
1539
1540	if (chip->details->i2c_adc == 1) {
1541		/* The SB0410 and SB0413 use I2C to control ADC. */
1542		int size, n;
1543
1544		size = ARRAY_SIZE(i2c_adc_init);
1545		/* dev_dbg(emu->card->dev, "I2C:array size=0x%x\n", size); */
1546		for (n = 0; n < size; n++)
1547			snd_ca0106_i2c_write(chip, i2c_adc_init[n][0],
1548					     i2c_adc_init[n][1]);
1549		for (n = 0; n < 4; n++) {
1550			chip->i2c_capture_volume[n][0] = 0xcf;
1551			chip->i2c_capture_volume[n][1] = 0xcf;
1552		}
1553		chip->i2c_capture_source = 2; /* Line in */
1554		/* Enable Line-in capture. MIC in currently untested. */
1555		/* snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); */
1556	}
1557
1558	if (chip->details->spi_dac) {
1559		/* The SB0570 use SPI to control DAC. */
1560		int size, n;
1561
1562		size = ARRAY_SIZE(spi_dac_init);
1563		for (n = 0; n < size; n++) {
1564			int reg = spi_dac_init[n] >> SPI_REG_SHIFT;
1565
1566			snd_ca0106_spi_write(chip, spi_dac_init[n]);
1567			if (reg < ARRAY_SIZE(chip->spi_dac_reg))
1568				chip->spi_dac_reg[reg] = spi_dac_init[n];
1569		}
1570
1571		/* Enable front dac only */
1572		snd_ca0106_pcm_power_dac(chip, PCM_FRONT_CHANNEL, 1);
1573	}
1574}
1575
1576static void ca0106_stop_chip(struct snd_ca0106 *chip)
1577{
1578	/* disable interrupts */
1579	snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
1580	outl(0, chip->port + INTE);
1581	snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
1582	udelay(1000);
1583	/* disable audio */
1584	/* outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG); */
1585	outl(0, chip->port + HCFG);
1586	/* FIXME: We need to stop and DMA transfers here.
1587	 *        But as I am not sure how yet, we cannot from the dma pages.
1588	 * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
1589	 */
1590}
1591
1592static int snd_ca0106_create(int dev, struct snd_card *card,
1593					 struct pci_dev *pci,
1594					 struct snd_ca0106 **rchip)
1595{
1596	struct snd_ca0106 *chip;
1597	const struct snd_ca0106_details *c;
1598	int err;
1599	static const struct snd_device_ops ops = {
1600		.dev_free = snd_ca0106_dev_free,
1601	};
1602
1603	*rchip = NULL;
1604
1605	err = pci_enable_device(pci);
1606	if (err < 0)
1607		return err;
1608	if (dma_set_mask(&pci->dev, DMA_BIT_MASK(32)) < 0 ||
1609	    dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32)) < 0) {
1610		dev_err(card->dev, "error to set 32bit mask DMA\n");
1611		pci_disable_device(pci);
1612		return -ENXIO;
1613	}
1614
1615	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1616	if (chip == NULL) {
1617		pci_disable_device(pci);
1618		return -ENOMEM;
1619	}
1620
1621	chip->card = card;
1622	chip->pci = pci;
1623	chip->irq = -1;
1624
1625	spin_lock_init(&chip->emu_lock);
1626
 
 
 
1627	chip->port = pci_resource_start(pci, 0);
1628	chip->res_port = request_region(chip->port, 0x20, "snd_ca0106");
1629	if (!chip->res_port) {
1630		snd_ca0106_free(chip);
1631		dev_err(card->dev, "cannot allocate the port\n");
1632		return -EBUSY;
1633	}
1634
1635	if (request_irq(pci->irq, snd_ca0106_interrupt,
1636			IRQF_SHARED, KBUILD_MODNAME, chip)) {
1637		snd_ca0106_free(chip);
1638		dev_err(card->dev, "cannot grab irq\n");
1639		return -EBUSY;
1640	}
1641	chip->irq = pci->irq;
1642	card->sync_irq = chip->irq;
1643
1644	/* This stores the periods table. */
1645	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &pci->dev,
1646				1024, &chip->buffer) < 0) {
1647		snd_ca0106_free(chip);
1648		return -ENOMEM;
1649	}
1650
1651	pci_set_master(pci);
1652	/* read serial */
1653	pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1654	pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1655	dev_info(card->dev, "Model %04x Rev %08x Serial %08x\n",
1656	       chip->model, pci->revision, chip->serial);
1657	strcpy(card->driver, "CA0106");
1658	strcpy(card->shortname, "CA0106");
1659
1660	for (c = ca0106_chip_details; c->serial; c++) {
1661		if (subsystem[dev]) {
1662			if (c->serial == subsystem[dev])
1663				break;
1664		} else if (c->serial == chip->serial)
1665			break;
1666	}
1667	chip->details = c;
1668	if (subsystem[dev]) {
1669		dev_info(card->dev, "Sound card name=%s, "
1670		       "subsystem=0x%x. Forced to subsystem=0x%x\n",
1671		       c->name, chip->serial, subsystem[dev]);
1672	}
1673
1674	sprintf(card->longname, "%s at 0x%lx irq %i",
1675		c->name, chip->port, chip->irq);
1676
1677	ca0106_init_chip(chip, 0);
1678
1679	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1680	if (err < 0) {
1681		snd_ca0106_free(chip);
1682		return err;
1683	}
1684	*rchip = chip;
1685	return 0;
1686}
1687
1688
1689static void ca0106_midi_interrupt_enable(struct snd_ca_midi *midi, int intr)
1690{
1691	snd_ca0106_intr_enable((struct snd_ca0106 *)(midi->dev_id), intr);
1692}
1693
1694static void ca0106_midi_interrupt_disable(struct snd_ca_midi *midi, int intr)
1695{
1696	snd_ca0106_intr_disable((struct snd_ca0106 *)(midi->dev_id), intr);
1697}
1698
1699static unsigned char ca0106_midi_read(struct snd_ca_midi *midi, int idx)
1700{
1701	return (unsigned char)snd_ca0106_ptr_read((struct snd_ca0106 *)(midi->dev_id),
1702						  midi->port + idx, 0);
1703}
1704
1705static void ca0106_midi_write(struct snd_ca_midi *midi, int data, int idx)
1706{
1707	snd_ca0106_ptr_write((struct snd_ca0106 *)(midi->dev_id), midi->port + idx, 0, data);
1708}
1709
1710static struct snd_card *ca0106_dev_id_card(void *dev_id)
1711{
1712	return ((struct snd_ca0106 *)dev_id)->card;
1713}
1714
1715static int ca0106_dev_id_port(void *dev_id)
1716{
1717	return ((struct snd_ca0106 *)dev_id)->port;
1718}
1719
1720static int snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
1721{
1722	struct snd_ca_midi *midi;
1723	char *name;
1724	int err;
1725
1726	if (channel == CA0106_MIDI_CHAN_B) {
1727		name = "CA0106 MPU-401 (UART) B";
1728		midi =  &chip->midi2;
1729		midi->tx_enable = INTE_MIDI_TX_B;
1730		midi->rx_enable = INTE_MIDI_RX_B;
1731		midi->ipr_tx = IPR_MIDI_TX_B;
1732		midi->ipr_rx = IPR_MIDI_RX_B;
1733		midi->port = MIDI_UART_B_DATA;
1734	} else {
1735		name = "CA0106 MPU-401 (UART)";
1736		midi =  &chip->midi;
1737		midi->tx_enable = INTE_MIDI_TX_A;
1738		midi->rx_enable = INTE_MIDI_TX_B;
1739		midi->ipr_tx = IPR_MIDI_TX_A;
1740		midi->ipr_rx = IPR_MIDI_RX_A;
1741		midi->port = MIDI_UART_A_DATA;
1742	}
1743
1744	midi->reset = CA0106_MPU401_RESET;
1745	midi->enter_uart = CA0106_MPU401_ENTER_UART;
1746	midi->ack = CA0106_MPU401_ACK;
1747
1748	midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1749	midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1750
1751	midi->channel = channel;
1752
1753	midi->interrupt_enable = ca0106_midi_interrupt_enable;
1754	midi->interrupt_disable = ca0106_midi_interrupt_disable;
1755
1756	midi->read = ca0106_midi_read;
1757	midi->write = ca0106_midi_write;
1758
1759	midi->get_dev_id_card = ca0106_dev_id_card;
1760	midi->get_dev_id_port = ca0106_dev_id_port;
1761
1762	midi->dev_id = chip;
1763	
1764	if ((err = ca_midi_init(chip, midi, 0, name)) < 0)
 
1765		return err;
1766
1767	return 0;
1768}
1769
1770
1771static int snd_ca0106_probe(struct pci_dev *pci,
1772					const struct pci_device_id *pci_id)
1773{
1774	static int dev;
1775	struct snd_card *card;
1776	struct snd_ca0106 *chip;
1777	int i, err;
1778
1779	if (dev >= SNDRV_CARDS)
1780		return -ENODEV;
1781	if (!enable[dev]) {
1782		dev++;
1783		return -ENOENT;
1784	}
1785
1786	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1787			   0, &card);
1788	if (err < 0)
1789		return err;
 
1790
1791	err = snd_ca0106_create(dev, card, pci, &chip);
1792	if (err < 0)
1793		goto error;
1794	card->private_data = chip;
1795
1796	for (i = 0; i < 4; i++) {
1797		err = snd_ca0106_pcm(chip, i);
1798		if (err < 0)
1799			goto error;
1800	}
1801
1802	if (chip->details->ac97 == 1) {
1803		/* The SB0410 and SB0413 do not have an AC97 chip. */
1804		err = snd_ca0106_ac97(chip);
1805		if (err < 0)
1806			goto error;
1807	}
1808	err = snd_ca0106_mixer(chip);
1809	if (err < 0)
1810		goto error;
1811
1812	dev_dbg(card->dev, "probe for MIDI channel A ...");
1813	err = snd_ca0106_midi(chip, CA0106_MIDI_CHAN_A);
1814	if (err < 0)
1815		goto error;
1816	dev_dbg(card->dev, " done.\n");
1817
1818#ifdef CONFIG_SND_PROC_FS
1819	snd_ca0106_proc_init(chip);
1820#endif
1821
1822	err = snd_card_register(card);
1823	if (err < 0)
1824		goto error;
1825
1826	pci_set_drvdata(pci, card);
1827	dev++;
1828	return 0;
1829
1830 error:
1831	snd_card_free(card);
1832	return err;
1833}
1834
1835static void snd_ca0106_remove(struct pci_dev *pci)
 
1836{
1837	snd_card_free(pci_get_drvdata(pci));
1838}
1839
1840#ifdef CONFIG_PM_SLEEP
1841static int snd_ca0106_suspend(struct device *dev)
1842{
1843	struct snd_card *card = dev_get_drvdata(dev);
1844	struct snd_ca0106 *chip = card->private_data;
1845
1846	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1847	if (chip->details->ac97)
1848		snd_ac97_suspend(chip->ac97);
1849	snd_ca0106_mixer_suspend(chip);
1850
1851	ca0106_stop_chip(chip);
1852	return 0;
1853}
1854
1855static int snd_ca0106_resume(struct device *dev)
1856{
1857	struct snd_card *card = dev_get_drvdata(dev);
1858	struct snd_ca0106 *chip = card->private_data;
1859	int i;
1860
1861	ca0106_init_chip(chip, 1);
1862
1863	if (chip->details->ac97)
1864		snd_ac97_resume(chip->ac97);
1865	snd_ca0106_mixer_resume(chip);
1866	if (chip->details->spi_dac) {
1867		for (i = 0; i < ARRAY_SIZE(chip->spi_dac_reg); i++)
1868			snd_ca0106_spi_write(chip, chip->spi_dac_reg[i]);
1869	}
1870
1871	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1872	return 0;
1873}
1874
1875static SIMPLE_DEV_PM_OPS(snd_ca0106_pm, snd_ca0106_suspend, snd_ca0106_resume);
1876#define SND_CA0106_PM_OPS	&snd_ca0106_pm
1877#else
1878#define SND_CA0106_PM_OPS	NULL
1879#endif
1880
1881// PCI IDs
1882static const struct pci_device_id snd_ca0106_ids[] = {
1883	{ PCI_VDEVICE(CREATIVE, 0x0007), 0 },	/* Audigy LS or Live 24bit */
1884	{ 0, }
1885};
1886MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1887
1888// pci_driver definition
1889static struct pci_driver ca0106_driver = {
1890	.name = KBUILD_MODNAME,
1891	.id_table = snd_ca0106_ids,
1892	.probe = snd_ca0106_probe,
1893	.remove = snd_ca0106_remove,
1894	.driver = {
1895		.pm = SND_CA0106_PM_OPS,
1896	},
1897};
1898
1899module_pci_driver(ca0106_driver);