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ca0106_main.c

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linux-6.19.14/sound/pci/ca0106/ca0106_main.c C
   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");
 140
 141// module parameters (see "Module Parameters")
 142static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
 143static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
 144static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
 145static uint subsystem[SNDRV_CARDS]; /* Force card subsystem model */
 146
 147module_param_array(index, int, NULL, 0444);
 148MODULE_PARM_DESC(index, "Index value for the CA0106 soundcard.");
 149module_param_array(id, charp, NULL, 0444);
 150MODULE_PARM_DESC(id, "ID string for the CA0106 soundcard.");
 151module_param_array(enable, bool, NULL, 0444);
 152MODULE_PARM_DESC(enable, "Enable the CA0106 soundcard.");
 153module_param_array(subsystem, uint, NULL, 0444);
 154MODULE_PARM_DESC(subsystem, "Force card subsystem model.");
 155
 156#include "ca0106.h"
 157
 158static const struct snd_ca0106_details ca0106_chip_details[] = {
 159	 /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
 160	 /* It is really just a normal SB Live 24bit. */
 161	 /* Tested:
 162	  * See ALSA bug#3251
 163	  */
 164	 { .serial = 0x10131102,
 165	   .name   = "X-Fi Extreme Audio [SBxxxx]",
 166	   .gpio_type = 1,
 167	   .i2c_adc = 1 } ,
 168	 /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
 169	 /* It is really just a normal SB Live 24bit. */
 170	 /*
 171 	  * CTRL:CA0111-WTLF
 172	  * ADC: WM8775SEDS
 173	  * DAC: CS4382-KQZ
 174	  */
 175	 /* Tested:
 176	  * Playback on front, rear, center/lfe speakers
 177	  * Capture from Mic in.
 178	  * Not-Tested:
 179	  * Capture from Line in.
 180	  * Playback to digital out.
 181	  */
 182	 { .serial = 0x10121102,
 183	   .name   = "X-Fi Extreme Audio [SB0790]",
 184	   .gpio_type = 1,
 185	   .i2c_adc = 1 } ,
 186	 /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
 187	 /* AudigyLS[SB0310] */
 188	 { .serial = 0x10021102,
 189	   .name   = "AudigyLS [SB0310]",
 190	   .ac97   = 1 } , 
 191	 /* Unknown AudigyLS that also says SB0310 on it */
 192	 { .serial = 0x10051102,
 193	   .name   = "AudigyLS [SB0310b]",
 194	   .ac97   = 1 } ,
 195	 /* New Sound Blaster Live! 7.1 24bit. This does not have an AC97. 53SB041000001 */
 196	 { .serial = 0x10061102,
 197	   .name   = "Live! 7.1 24bit [SB0410]",
 198	   .gpio_type = 1,
 199	   .i2c_adc = 1 } ,
 200	 /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
 201	 { .serial = 0x10071102,
 202	   .name   = "Live! 7.1 24bit [SB0413]",
 203	   .gpio_type = 1,
 204	   .i2c_adc = 1 } ,
 205	 /* New Audigy SE. Has a different DAC. */
 206	 /* SB0570:
 207	  * CTRL:CA0106-DAT
 208	  * ADC: WM8775EDS
 209	  * DAC: WM8768GEDS
 210	  */
 211	 { .serial = 0x100a1102,
 212	   .name   = "Audigy SE [SB0570]",
 213	   .gpio_type = 1,
 214	   .i2c_adc = 1,
 215	   .spi_dac = 0x4021 } ,
 216	 /* New Audigy LS. Has a different DAC. */
 217	 /* SB0570:
 218	  * CTRL:CA0106-DAT
 219	  * ADC: WM8775EDS
 220	  * DAC: WM8768GEDS
 221	  */
 222	 { .serial = 0x10111102,
 223	   .name   = "Audigy SE OEM [SB0570a]",
 224	   .gpio_type = 1,
 225	   .i2c_adc = 1,
 226	   .spi_dac = 0x4021 } ,
 227	/* Sound Blaster 5.1vx
 228	 * Tested: Playback on front, rear, center/lfe speakers
 229	 * Not-Tested: Capture
 230	 */
 231	{ .serial = 0x10041102,
 232	  .name   = "Sound Blaster 5.1vx [SB1070]",
 233	  .gpio_type = 1,
 234	  .i2c_adc = 0,
 235	  .spi_dac = 0x0124
 236	 } ,
 237	 /* MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97 */
 238	 /* SB0438
 239	  * CTRL:CA0106-DAT
 240	  * ADC: WM8775SEDS
 241	  * DAC: CS4382-KQZ
 242	  */
 243	 { .serial = 0x10091462,
 244	   .name   = "MSI K8N Diamond MB [SB0438]",
 245	   .gpio_type = 2,
 246	   .i2c_adc = 1 } ,
 247	 /* MSI K8N Diamond PLUS MB */
 248	 { .serial = 0x10091102,
 249	   .name   = "MSI K8N Diamond MB",
 250	   .gpio_type = 2,
 251	   .i2c_adc = 1,
 252	   .spi_dac = 0x4021 } ,
 253	/* Giga-byte GA-G1975X mobo
 254	 * Novell bnc#395807
 255	 */
 256	/* FIXME: the GPIO and I2C setting aren't tested well */
 257	{ .serial = 0x1458a006,
 258	  .name = "Giga-byte GA-G1975X",
 259	  .gpio_type = 1,
 260	  .i2c_adc = 1 },
 261	 /* Shuttle XPC SD31P which has an onboard Creative Labs
 262	  * Sound Blaster Live! 24-bit EAX
 263	  * high-definition 7.1 audio processor".
 264	  * Added using info from andrewvegan in alsa bug #1298
 265	  */
 266	 { .serial = 0x30381297,
 267	   .name   = "Shuttle XPC SD31P [SD31P]",
 268	   .gpio_type = 1,
 269	   .i2c_adc = 1 } ,
 270	/* Shuttle XPC SD11G5 which has an onboard Creative Labs
 271	 * Sound Blaster Live! 24-bit EAX
 272	 * high-definition 7.1 audio processor".
 273	 * Fixes ALSA bug#1600
 274         */
 275	{ .serial = 0x30411297,
 276	  .name = "Shuttle XPC SD11G5 [SD11G5]",
 277	  .gpio_type = 1,
 278	  .i2c_adc = 1 } ,
 279	 { .serial = 0,
 280	   .name   = "AudigyLS [Unknown]" }
 281};
 282
 283/* hardware definition */
 284static const struct snd_pcm_hardware snd_ca0106_playback_hw = {
 285	.info =			SNDRV_PCM_INFO_MMAP | 
 286				SNDRV_PCM_INFO_INTERLEAVED |
 287				SNDRV_PCM_INFO_BLOCK_TRANSFER |
 288				SNDRV_PCM_INFO_MMAP_VALID |
 289				SNDRV_PCM_INFO_SYNC_START,
 290	.formats =		SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
 291	.rates =		(SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |
 292				 SNDRV_PCM_RATE_192000),
 293	.rate_min =		48000,
 294	.rate_max =		192000,
 295	.channels_min =		2,  //1,
 296	.channels_max =		2,  //6,
 297	.buffer_bytes_max =	((65536 - 64) * 8),
 298	.period_bytes_min =	64,
 299	.period_bytes_max =	(65536 - 64),
 300	.periods_min =		2,
 301	.periods_max =		8,
 302	.fifo_size =		0,
 303};
 304
 305static const struct snd_pcm_hardware snd_ca0106_capture_hw = {
 306	.info =			(SNDRV_PCM_INFO_MMAP | 
 307				 SNDRV_PCM_INFO_INTERLEAVED |
 308				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 309				 SNDRV_PCM_INFO_MMAP_VALID),
 310	.formats =		SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
 311#if 0 /* FIXME: looks like 44.1kHz capture causes noisy output on 48kHz */
 312	.rates =		(SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
 313				 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
 314	.rate_min =		44100,
 315#else
 316	.rates =		(SNDRV_PCM_RATE_48000 |
 317				 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
 318	.rate_min =		48000,
 319#endif /* FIXME */
 320	.rate_max =		192000,
 321	.channels_min =		2,
 322	.channels_max =		2,
 323	.buffer_bytes_max =	65536 - 128,
 324	.period_bytes_min =	64,
 325	.period_bytes_max =	32768 - 64,
 326	.periods_min =		2,
 327	.periods_max =		2,
 328	.fifo_size =		0,
 329};
 330
 331unsigned int snd_ca0106_ptr_read(struct snd_ca0106 * emu, 
 332					  unsigned int reg, 
 333					  unsigned int chn)
 334{
 335	unsigned int regptr;
 336  
 337	regptr = (reg << 16) | chn;
 338
 339	guard(spinlock_irqsave)(&emu->emu_lock);
 340	outl(regptr, emu->port + CA0106_PTR);
 341	return inl(emu->port + CA0106_DATA);
 342}
 343
 344void snd_ca0106_ptr_write(struct snd_ca0106 *emu, 
 345				   unsigned int reg, 
 346				   unsigned int chn, 
 347				   unsigned int data)
 348{
 349	unsigned int regptr;
 350
 351	regptr = (reg << 16) | chn;
 352
 353	guard(spinlock_irqsave)(&emu->emu_lock);
 354	outl(regptr, emu->port + CA0106_PTR);
 355	outl(data, emu->port + CA0106_DATA);
 356}
 357
 358int snd_ca0106_spi_write(struct snd_ca0106 * emu,
 359				   unsigned int data)
 360{
 361	unsigned int reset, set;
 362	unsigned int reg, tmp;
 363	int n, result;
 364	reg = SPI;
 365	if (data > 0xffff) /* Only 16bit values allowed */
 366		return 1;
 367	tmp = snd_ca0106_ptr_read(emu, reg, 0);
 368	reset = (tmp & ~0x3ffff) | 0x20000; /* Set xxx20000 */
 369	set = reset | 0x10000; /* Set xxx1xxxx */
 370	snd_ca0106_ptr_write(emu, reg, 0, reset | data);
 371	tmp = snd_ca0106_ptr_read(emu, reg, 0); /* write post */
 372	snd_ca0106_ptr_write(emu, reg, 0, set | data);
 373	result = 1;
 374	/* Wait for status bit to return to 0 */
 375	for (n = 0; n < 100; n++) {
 376		udelay(10);
 377		tmp = snd_ca0106_ptr_read(emu, reg, 0);
 378		if (!(tmp & 0x10000)) {
 379			result = 0;
 380			break;
 381		}
 382	}
 383	if (result) /* Timed out */
 384		return 1;
 385	snd_ca0106_ptr_write(emu, reg, 0, reset | data);
 386	tmp = snd_ca0106_ptr_read(emu, reg, 0); /* Write post */
 387	return 0;
 388}
 389
 390/* The ADC does not support i2c read, so only write is implemented */
 391int snd_ca0106_i2c_write(struct snd_ca0106 *emu,
 392				u32 reg,
 393				u32 value)
 394{
 395	u32 tmp;
 396	int timeout = 0;
 397	int status;
 398	int retry;
 399	if ((reg > 0x7f) || (value > 0x1ff)) {
 400		dev_err(emu->card->dev, "i2c_write: invalid values.\n");
 401		return -EINVAL;
 402	}
 403
 404	tmp = reg << 25 | value << 16;
 405	/*
 406	dev_dbg(emu->card->dev, "I2C-write:reg=0x%x, value=0x%x\n", reg, value);
 407	*/
 408	/* Not sure what this I2C channel controls. */
 409	/* snd_ca0106_ptr_write(emu, I2C_D0, 0, tmp); */
 410
 411	/* This controls the I2C connected to the WM8775 ADC Codec */
 412	snd_ca0106_ptr_write(emu, I2C_D1, 0, tmp);
 413
 414	for (retry = 0; retry < 10; retry++) {
 415		/* Send the data to i2c */
 416		//tmp = snd_ca0106_ptr_read(emu, I2C_A, 0);
 417		//tmp = tmp & ~(I2C_A_ADC_READ|I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD_MASK);
 418		tmp = 0;
 419		tmp = tmp | (I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD);
 420		snd_ca0106_ptr_write(emu, I2C_A, 0, tmp);
 421
 422		/* Wait till the transaction ends */
 423		while (1) {
 424			status = snd_ca0106_ptr_read(emu, I2C_A, 0);
 425			/*dev_dbg(emu->card->dev, "I2C:status=0x%x\n", status);*/
 426			timeout++;
 427			if ((status & I2C_A_ADC_START) == 0)
 428				break;
 429
 430			if (timeout > 1000)
 431				break;
 432		}
 433		//Read back and see if the transaction is successful
 434		if ((status & I2C_A_ADC_ABORT) == 0)
 435			break;
 436	}
 437
 438	if (retry == 10) {
 439		dev_err(emu->card->dev, "Writing to ADC failed!\n");
 440		return -EINVAL;
 441	}
 442    
 443    	return 0;
 444}
 445
 446
 447static void snd_ca0106_intr_enable(struct snd_ca0106 *emu, unsigned int intrenb)
 448{
 449	unsigned int intr_enable;
 450
 451	guard(spinlock_irqsave)(&emu->emu_lock);
 452	intr_enable = inl(emu->port + CA0106_INTE) | intrenb;
 453	outl(intr_enable, emu->port + CA0106_INTE);
 454}
 455
 456static void snd_ca0106_intr_disable(struct snd_ca0106 *emu, unsigned int intrenb)
 457{
 458	unsigned int intr_enable;
 459
 460	guard(spinlock_irqsave)(&emu->emu_lock);
 461	intr_enable = inl(emu->port + CA0106_INTE) & ~intrenb;
 462	outl(intr_enable, emu->port + CA0106_INTE);
 463}
 464
 465
 466static void snd_ca0106_pcm_free_substream(struct snd_pcm_runtime *runtime)
 467{
 468	kfree(runtime->private_data);
 469}
 470
 471static const int spi_dacd_reg[] = {
 472	SPI_DACD0_REG,
 473	SPI_DACD1_REG,
 474	SPI_DACD2_REG,
 475	0,
 476	SPI_DACD4_REG,
 477};
 478static const int spi_dacd_bit[] = {
 479	SPI_DACD0_BIT,
 480	SPI_DACD1_BIT,
 481	SPI_DACD2_BIT,
 482	0,
 483	SPI_DACD4_BIT,
 484};
 485
 486static void restore_spdif_bits(struct snd_ca0106 *chip, int idx)
 487{
 488	if (chip->spdif_str_bits[idx] != chip->spdif_bits[idx]) {
 489		chip->spdif_str_bits[idx] = chip->spdif_bits[idx];
 490		snd_ca0106_ptr_write(chip, SPCS0 + idx, 0,
 491				     chip->spdif_str_bits[idx]);
 492	}
 493}
 494
 495static int snd_ca0106_channel_dac(struct snd_ca0106 *chip,
 496				  const struct snd_ca0106_details *details,
 497				  int channel_id)
 498{
 499	switch (channel_id) {
 500	case PCM_FRONT_CHANNEL:
 501		return (details->spi_dac & 0xf000) >> (4 * 3);
 502	case PCM_REAR_CHANNEL:
 503		return (details->spi_dac & 0x0f00) >> (4 * 2);
 504	case PCM_CENTER_LFE_CHANNEL:
 505		return (details->spi_dac & 0x00f0) >> (4 * 1);
 506	case PCM_UNKNOWN_CHANNEL:
 507		return (details->spi_dac & 0x000f) >> (4 * 0);
 508	default:
 509		dev_dbg(chip->card->dev, "ca0106: unknown channel_id %d\n",
 510			   channel_id);
 511	}
 512	return 0;
 513}
 514
 515static int snd_ca0106_pcm_power_dac(struct snd_ca0106 *chip, int channel_id,
 516				    int power)
 517{
 518	if (chip->details->spi_dac) {
 519		const int dac = snd_ca0106_channel_dac(chip, chip->details,
 520						       channel_id);
 521		const int reg = spi_dacd_reg[dac];
 522		const int bit = spi_dacd_bit[dac];
 523
 524		if (power)
 525			/* Power up */
 526			chip->spi_dac_reg[reg] &= ~bit;
 527		else
 528			/* Power down */
 529			chip->spi_dac_reg[reg] |= bit;
 530		if (snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]) != 0)
 531			return -ENXIO;
 532	}
 533	return 0;
 534}
 535
 536/* open_playback callback */
 537static int snd_ca0106_pcm_open_playback_channel(struct snd_pcm_substream *substream,
 538						int channel_id)
 539{
 540	struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 541        struct snd_ca0106_channel *channel = &(chip->playback_channels[channel_id]);
 542	struct snd_ca0106_pcm *epcm;
 543	struct snd_pcm_runtime *runtime = substream->runtime;
 544	int err;
 545
 546	epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 547
 548	if (epcm == NULL)
 549		return -ENOMEM;
 550	epcm->emu = chip;
 551	epcm->substream = substream;
 552        epcm->channel_id=channel_id;
 553  
 554	runtime->private_data = epcm;
 555	runtime->private_free = snd_ca0106_pcm_free_substream;
 556  
 557	runtime->hw = snd_ca0106_playback_hw;
 558
 559        channel->emu = chip;
 560        channel->number = channel_id;
 561
 562	channel->use = 1;
 563	/*
 564	dev_dbg(chip->card->dev, "open:channel_id=%d, chip=%p, channel=%p\n",
 565	       channel_id, chip, channel);
 566	*/
 567        //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 568	channel->epcm = epcm;
 569	err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
 570	if (err < 0)
 571                return err;
 572	err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64);
 573	if (err < 0)
 574                return err;
 575	snd_pcm_set_sync(substream);
 576
 577	/* Front channel dac should already be on */
 578	if (channel_id != PCM_FRONT_CHANNEL) {
 579		err = snd_ca0106_pcm_power_dac(chip, channel_id, 1);
 580		if (err < 0)
 581			return err;
 582	}
 583
 584	restore_spdif_bits(chip, channel_id);
 585
 586	return 0;
 587}
 588
 589/* close callback */
 590static int snd_ca0106_pcm_close_playback(struct snd_pcm_substream *substream)
 591{
 592	struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 593	struct snd_pcm_runtime *runtime = substream->runtime;
 594        struct snd_ca0106_pcm *epcm = runtime->private_data;
 595	chip->playback_channels[epcm->channel_id].use = 0;
 596
 597	restore_spdif_bits(chip, epcm->channel_id);
 598
 599	/* Front channel dac should stay on */
 600	if (epcm->channel_id != PCM_FRONT_CHANNEL) {
 601		int err;
 602		err = snd_ca0106_pcm_power_dac(chip, epcm->channel_id, 0);
 603		if (err < 0)
 604			return err;
 605	}
 606
 607	/* FIXME: maybe zero others */
 608	return 0;
 609}
 610
 611static int snd_ca0106_pcm_open_playback_front(struct snd_pcm_substream *substream)
 612{
 613	return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
 614}
 615
 616static int snd_ca0106_pcm_open_playback_center_lfe(struct snd_pcm_substream *substream)
 617{
 618	return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
 619}
 620
 621static int snd_ca0106_pcm_open_playback_unknown(struct snd_pcm_substream *substream)
 622{
 623	return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
 624}
 625
 626static int snd_ca0106_pcm_open_playback_rear(struct snd_pcm_substream *substream)
 627{
 628	return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
 629}
 630
 631/* open_capture callback */
 632static int snd_ca0106_pcm_open_capture_channel(struct snd_pcm_substream *substream,
 633					       int channel_id)
 634{
 635	struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 636        struct snd_ca0106_channel *channel = &(chip->capture_channels[channel_id]);
 637	struct snd_ca0106_pcm *epcm;
 638	struct snd_pcm_runtime *runtime = substream->runtime;
 639	int err;
 640
 641	epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 642	if (!epcm)
 643		return -ENOMEM;
 644
 645	epcm->emu = chip;
 646	epcm->substream = substream;
 647        epcm->channel_id=channel_id;
 648  
 649	runtime->private_data = epcm;
 650	runtime->private_free = snd_ca0106_pcm_free_substream;
 651  
 652	runtime->hw = snd_ca0106_capture_hw;
 653
 654        channel->emu = chip;
 655        channel->number = channel_id;
 656
 657	channel->use = 1;
 658	/*
 659	dev_dbg(chip->card->dev, "open:channel_id=%d, chip=%p, channel=%p\n",
 660	       channel_id, chip, channel);
 661	*/
 662        //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 663        channel->epcm = epcm;
 664	err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
 665	if (err < 0)
 666                return err;
 667	//snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
 668	err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64);
 669	if (err < 0)
 670                return err;
 671	return 0;
 672}
 673
 674/* close callback */
 675static int snd_ca0106_pcm_close_capture(struct snd_pcm_substream *substream)
 676{
 677	struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 678	struct snd_pcm_runtime *runtime = substream->runtime;
 679        struct snd_ca0106_pcm *epcm = runtime->private_data;
 680	chip->capture_channels[epcm->channel_id].use = 0;
 681	/* FIXME: maybe zero others */
 682	return 0;
 683}
 684
 685static int snd_ca0106_pcm_open_0_capture(struct snd_pcm_substream *substream)
 686{
 687	return snd_ca0106_pcm_open_capture_channel(substream, 0);
 688}
 689
 690static int snd_ca0106_pcm_open_1_capture(struct snd_pcm_substream *substream)
 691{
 692	return snd_ca0106_pcm_open_capture_channel(substream, 1);
 693}
 694
 695static int snd_ca0106_pcm_open_2_capture(struct snd_pcm_substream *substream)
 696{
 697	return snd_ca0106_pcm_open_capture_channel(substream, 2);
 698}
 699
 700static int snd_ca0106_pcm_open_3_capture(struct snd_pcm_substream *substream)
 701{
 702	return snd_ca0106_pcm_open_capture_channel(substream, 3);
 703}
 704
 705/* prepare playback callback */
 706static int snd_ca0106_pcm_prepare_playback(struct snd_pcm_substream *substream)
 707{
 708	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 709	struct snd_pcm_runtime *runtime = substream->runtime;
 710	struct snd_ca0106_pcm *epcm = runtime->private_data;
 711	int channel = epcm->channel_id;
 712	u32 *table_base = (u32 *)(emu->buffer->area+(8*16*channel));
 713	u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
 714	u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
 715	u32 hcfg_set = 0x00000000;
 716	u32 hcfg;
 717	u32 reg40_mask = 0x30000 << (channel<<1);
 718	u32 reg40_set = 0;
 719	u32 reg40;
 720	/* FIXME: Depending on mixer selection of SPDIF out or not, select the spdif rate or the DAC rate. */
 721	u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
 722	u32 reg71_set = 0;
 723	u32 reg71;
 724	int i;
 725	
 726#if 0 /* debug */
 727	dev_dbg(emu->card->dev,
 728		   "prepare:channel_number=%d, rate=%d, format=0x%x, "
 729		   "channels=%d, buffer_size=%ld, period_size=%ld, "
 730		   "periods=%u, frames_to_bytes=%d\n",
 731		   channel, runtime->rate, runtime->format,
 732		   runtime->channels, runtime->buffer_size,
 733		   runtime->period_size, runtime->periods,
 734		   frames_to_bytes(runtime, 1));
 735	dev_dbg(emu->card->dev,
 736		"dma_addr=%x, dma_area=%p, table_base=%p\n",
 737		   runtime->dma_addr, runtime->dma_area, table_base);
 738	dev_dbg(emu->card->dev,
 739		"dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
 740		   emu->buffer->addr, emu->buffer->area, emu->buffer->bytes);
 741#endif /* debug */
 742	/* Rate can be set per channel. */
 743	/* reg40 control host to fifo */
 744	/* reg71 controls DAC rate. */
 745	switch (runtime->rate) {
 746	case 44100:
 747		reg40_set = 0x10000 << (channel<<1);
 748		reg71_set = 0x01010000; 
 749		break;
 750        case 48000:
 751		reg40_set = 0;
 752		reg71_set = 0; 
 753		break;
 754	case 96000:
 755		reg40_set = 0x20000 << (channel<<1);
 756		reg71_set = 0x02020000; 
 757		break;
 758	case 192000:
 759		reg40_set = 0x30000 << (channel<<1);
 760		reg71_set = 0x03030000; 
 761		break;
 762	default:
 763		reg40_set = 0;
 764		reg71_set = 0; 
 765		break;
 766	}
 767	/* Format is a global setting */
 768	/* FIXME: Only let the first channel accessed set this. */
 769	switch (runtime->format) {
 770	case SNDRV_PCM_FORMAT_S16_LE:
 771		hcfg_set = 0;
 772		break;
 773	case SNDRV_PCM_FORMAT_S32_LE:
 774		hcfg_set = HCFG_PLAYBACK_S32_LE;
 775		break;
 776	default:
 777		hcfg_set = 0;
 778		break;
 779	}
 780	hcfg = inl(emu->port + CA0106_HCFG) ;
 781	hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 782	outl(hcfg, emu->port + CA0106_HCFG);
 783	reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
 784	reg40 = (reg40 & ~reg40_mask) | reg40_set;
 785	snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
 786	reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 787	reg71 = (reg71 & ~reg71_mask) | reg71_set;
 788	snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 789
 790	/* FIXME: Check emu->buffer->size before actually writing to it. */
 791        for(i=0; i < runtime->periods; i++) {
 792		table_base[i*2] = runtime->dma_addr + (i * period_size_bytes);
 793		table_base[i*2+1] = period_size_bytes << 16;
 794	}
 795 
 796	snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer->addr+(8*16*channel));
 797	snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
 798	snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
 799	snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
 800	snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
 801	/* FIXME  test what 0 bytes does. */
 802	snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
 803	snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
 804	snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
 805	snd_ca0106_ptr_write(emu, 0x08, channel, 0);
 806        snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
 807#if 0
 808	snd_ca0106_ptr_write(emu, SPCS0, 0,
 809			       SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
 810			       SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
 811			       SPCS_GENERATIONSTATUS | 0x00001200 |
 812			       0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
 813#endif
 814
 815	return 0;
 816}
 817
 818/* prepare capture callback */
 819static int snd_ca0106_pcm_prepare_capture(struct snd_pcm_substream *substream)
 820{
 821	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 822	struct snd_pcm_runtime *runtime = substream->runtime;
 823	struct snd_ca0106_pcm *epcm = runtime->private_data;
 824	int channel = epcm->channel_id;
 825	u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
 826	u32 hcfg_set = 0x00000000;
 827	u32 hcfg;
 828	u32 over_sampling=0x2;
 829	u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
 830	u32 reg71_set = 0;
 831	u32 reg71;
 832	
 833#if 0 /* debug */
 834	dev_dbg(emu->card->dev,
 835		   "prepare:channel_number=%d, rate=%d, format=0x%x, "
 836		   "channels=%d, buffer_size=%ld, period_size=%ld, "
 837		   "periods=%u, frames_to_bytes=%d\n",
 838		   channel, runtime->rate, runtime->format,
 839		   runtime->channels, runtime->buffer_size,
 840		   runtime->period_size, runtime->periods,
 841		   frames_to_bytes(runtime, 1));
 842	dev_dbg(emu->card->dev,
 843		"dma_addr=%x, dma_area=%p, table_base=%p\n",
 844		   runtime->dma_addr, runtime->dma_area, table_base);
 845	dev_dbg(emu->card->dev,
 846		"dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
 847		   emu->buffer->addr, emu->buffer->area, emu->buffer->bytes);
 848#endif /* debug */
 849	/* reg71 controls ADC rate. */
 850	switch (runtime->rate) {
 851	case 44100:
 852		reg71_set = 0x00004000;
 853		break;
 854        case 48000:
 855		reg71_set = 0; 
 856		break;
 857	case 96000:
 858		reg71_set = 0x00008000;
 859		over_sampling=0xa;
 860		break;
 861	case 192000:
 862		reg71_set = 0x0000c000; 
 863		over_sampling=0xa;
 864		break;
 865	default:
 866		reg71_set = 0; 
 867		break;
 868	}
 869	/* Format is a global setting */
 870	/* FIXME: Only let the first channel accessed set this. */
 871	switch (runtime->format) {
 872	case SNDRV_PCM_FORMAT_S16_LE:
 873		hcfg_set = 0;
 874		break;
 875	case SNDRV_PCM_FORMAT_S32_LE:
 876		hcfg_set = HCFG_CAPTURE_S32_LE;
 877		break;
 878	default:
 879		hcfg_set = 0;
 880		break;
 881	}
 882	hcfg = inl(emu->port + CA0106_HCFG) ;
 883	hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 884	outl(hcfg, emu->port + CA0106_HCFG);
 885	reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 886	reg71 = (reg71 & ~reg71_mask) | reg71_set;
 887	snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 888        if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
 889	        snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
 890	}
 891
 892
 893	/*
 894	dev_dbg(emu->card->dev,
 895	       "prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, "
 896	       "buffer_size=%ld, period_size=%ld, frames_to_bytes=%d\n",
 897	       channel, runtime->rate, runtime->format, runtime->channels,
 898	       runtime->buffer_size, runtime->period_size,
 899	       frames_to_bytes(runtime, 1));
 900	*/
 901	snd_ca0106_ptr_write(emu, 0x13, channel, 0);
 902	snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
 903	snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
 904	snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
 905
 906	return 0;
 907}
 908
 909/* trigger_playback callback */
 910static int snd_ca0106_pcm_trigger_playback(struct snd_pcm_substream *substream,
 911				    int cmd)
 912{
 913	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 914	struct snd_pcm_runtime *runtime;
 915	struct snd_ca0106_pcm *epcm;
 916	int channel;
 917	int result = 0;
 918        struct snd_pcm_substream *s;
 919	u32 basic = 0;
 920	u32 extended = 0;
 921	u32 bits;
 922	int running = 0;
 923
 924	switch (cmd) {
 925	case SNDRV_PCM_TRIGGER_START:
 926	case SNDRV_PCM_TRIGGER_RESUME:
 927		running = 1;
 928		break;
 929	case SNDRV_PCM_TRIGGER_STOP:
 930	case SNDRV_PCM_TRIGGER_SUSPEND:
 931	default:
 932		running = 0;
 933		break;
 934	}
 935        snd_pcm_group_for_each_entry(s, substream) {
 936		if (snd_pcm_substream_chip(s) != emu ||
 937		    s->stream != SNDRV_PCM_STREAM_PLAYBACK)
 938			continue;
 939		runtime = s->runtime;
 940		epcm = runtime->private_data;
 941		channel = epcm->channel_id;
 942		/* dev_dbg(emu->card->dev, "channel=%d\n", channel); */
 943		epcm->running = running;
 944		basic |= (0x1 << channel);
 945		extended |= (0x10 << channel);
 946                snd_pcm_trigger_done(s, substream);
 947        }
 948	/* dev_dbg(emu->card->dev, "basic=0x%x, extended=0x%x\n",basic, extended); */
 949
 950	switch (cmd) {
 951	case SNDRV_PCM_TRIGGER_START:
 952	case SNDRV_PCM_TRIGGER_RESUME:
 953		bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
 954		bits |= extended;
 955		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
 956		bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
 957		bits |= basic;
 958		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
 959		break;
 960	case SNDRV_PCM_TRIGGER_STOP:
 961	case SNDRV_PCM_TRIGGER_SUSPEND:
 962		bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
 963		bits &= ~basic;
 964		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
 965		bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
 966		bits &= ~extended;
 967		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
 968		break;
 969	default:
 970		result = -EINVAL;
 971		break;
 972	}
 973	return result;
 974}
 975
 976/* trigger_capture callback */
 977static int snd_ca0106_pcm_trigger_capture(struct snd_pcm_substream *substream,
 978				    int cmd)
 979{
 980	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 981	struct snd_pcm_runtime *runtime = substream->runtime;
 982	struct snd_ca0106_pcm *epcm = runtime->private_data;
 983	int channel = epcm->channel_id;
 984	int result = 0;
 985
 986	switch (cmd) {
 987	case SNDRV_PCM_TRIGGER_START:
 988		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
 989		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
 990		epcm->running = 1;
 991		break;
 992	case SNDRV_PCM_TRIGGER_STOP:
 993		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
 994		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
 995		epcm->running = 0;
 996		break;
 997	default:
 998		result = -EINVAL;
 999		break;
1000	}
1001	return result;
1002}
1003
1004/* pointer_playback callback */
1005static snd_pcm_uframes_t
1006snd_ca0106_pcm_pointer_playback(struct snd_pcm_substream *substream)
1007{
1008	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1009	struct snd_pcm_runtime *runtime = substream->runtime;
1010	struct snd_ca0106_pcm *epcm = runtime->private_data;
1011	unsigned int ptr, prev_ptr;
1012	int channel = epcm->channel_id;
1013	int timeout = 10;
1014
1015	if (!epcm->running)
1016		return 0;
1017
1018	prev_ptr = -1;
1019	do {
1020		ptr = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
1021		ptr = (ptr >> 3) * runtime->period_size;
1022		ptr += bytes_to_frames(runtime,
1023			snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel));
1024		if (ptr >= runtime->buffer_size)
1025			ptr -= runtime->buffer_size;
1026		if (prev_ptr == ptr)
1027			return ptr;
1028		prev_ptr = ptr;
1029	} while (--timeout);
1030	dev_warn(emu->card->dev, "ca0106: unstable DMA pointer!\n");
1031	return 0;
1032}
1033
1034/* pointer_capture callback */
1035static snd_pcm_uframes_t
1036snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream *substream)
1037{
1038	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1039	struct snd_pcm_runtime *runtime = substream->runtime;
1040	struct snd_ca0106_pcm *epcm = runtime->private_data;
1041	snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
1042	int channel = epcm->channel_id;
1043
1044	if (!epcm->running)
1045		return 0;
1046
1047	ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
1048	ptr2 = bytes_to_frames(runtime, ptr1);
1049	ptr=ptr2;
1050        if (ptr >= runtime->buffer_size)
1051		ptr -= runtime->buffer_size;
1052	/*
1053	dev_dbg(emu->card->dev, "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
1054	       "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
1055	       ptr1, ptr2, ptr, (int)runtime->buffer_size,
1056	       (int)runtime->period_size, (int)runtime->frame_bits,
1057	       (int)runtime->rate);
1058	*/
1059	return ptr;
1060}
1061
1062/* operators */
1063static const struct snd_pcm_ops snd_ca0106_playback_front_ops = {
1064	.open =        snd_ca0106_pcm_open_playback_front,
1065	.close =       snd_ca0106_pcm_close_playback,
1066	.prepare =     snd_ca0106_pcm_prepare_playback,
1067	.trigger =     snd_ca0106_pcm_trigger_playback,
1068	.pointer =     snd_ca0106_pcm_pointer_playback,
1069};
1070
1071static const struct snd_pcm_ops snd_ca0106_capture_0_ops = {
1072	.open =        snd_ca0106_pcm_open_0_capture,
1073	.close =       snd_ca0106_pcm_close_capture,
1074	.prepare =     snd_ca0106_pcm_prepare_capture,
1075	.trigger =     snd_ca0106_pcm_trigger_capture,
1076	.pointer =     snd_ca0106_pcm_pointer_capture,
1077};
1078
1079static const struct snd_pcm_ops snd_ca0106_capture_1_ops = {
1080	.open =        snd_ca0106_pcm_open_1_capture,
1081	.close =       snd_ca0106_pcm_close_capture,
1082	.prepare =     snd_ca0106_pcm_prepare_capture,
1083	.trigger =     snd_ca0106_pcm_trigger_capture,
1084	.pointer =     snd_ca0106_pcm_pointer_capture,
1085};
1086
1087static const struct snd_pcm_ops snd_ca0106_capture_2_ops = {
1088	.open =        snd_ca0106_pcm_open_2_capture,
1089	.close =       snd_ca0106_pcm_close_capture,
1090	.prepare =     snd_ca0106_pcm_prepare_capture,
1091	.trigger =     snd_ca0106_pcm_trigger_capture,
1092	.pointer =     snd_ca0106_pcm_pointer_capture,
1093};
1094
1095static const struct snd_pcm_ops snd_ca0106_capture_3_ops = {
1096	.open =        snd_ca0106_pcm_open_3_capture,
1097	.close =       snd_ca0106_pcm_close_capture,
1098	.prepare =     snd_ca0106_pcm_prepare_capture,
1099	.trigger =     snd_ca0106_pcm_trigger_capture,
1100	.pointer =     snd_ca0106_pcm_pointer_capture,
1101};
1102
1103static const struct snd_pcm_ops snd_ca0106_playback_center_lfe_ops = {
1104        .open =         snd_ca0106_pcm_open_playback_center_lfe,
1105        .close =        snd_ca0106_pcm_close_playback,
1106        .prepare =      snd_ca0106_pcm_prepare_playback,     
1107        .trigger =      snd_ca0106_pcm_trigger_playback,  
1108        .pointer =      snd_ca0106_pcm_pointer_playback, 
1109};
1110
1111static const struct snd_pcm_ops snd_ca0106_playback_unknown_ops = {
1112        .open =         snd_ca0106_pcm_open_playback_unknown,
1113        .close =        snd_ca0106_pcm_close_playback,
1114        .prepare =      snd_ca0106_pcm_prepare_playback,     
1115        .trigger =      snd_ca0106_pcm_trigger_playback,  
1116        .pointer =      snd_ca0106_pcm_pointer_playback, 
1117};
1118
1119static const struct snd_pcm_ops snd_ca0106_playback_rear_ops = {
1120        .open =         snd_ca0106_pcm_open_playback_rear,
1121        .close =        snd_ca0106_pcm_close_playback,
1122        .prepare =      snd_ca0106_pcm_prepare_playback,     
1123        .trigger =      snd_ca0106_pcm_trigger_playback,  
1124        .pointer =      snd_ca0106_pcm_pointer_playback, 
1125};
1126
1127
1128static unsigned short snd_ca0106_ac97_read(struct snd_ac97 *ac97,
1129					     unsigned short reg)
1130{
1131	struct snd_ca0106 *emu = ac97->private_data;
1132
1133	guard(spinlock_irqsave)(&emu->emu_lock);
1134	outb(reg, emu->port + CA0106_AC97ADDRESS);
1135	return inw(emu->port + CA0106_AC97DATA);
1136}
1137
1138static void snd_ca0106_ac97_write(struct snd_ac97 *ac97,
1139				    unsigned short reg, unsigned short val)
1140{
1141	struct snd_ca0106 *emu = ac97->private_data;
1142  
1143	guard(spinlock_irqsave)(&emu->emu_lock);
1144	outb(reg, emu->port + CA0106_AC97ADDRESS);
1145	outw(val, emu->port + CA0106_AC97DATA);
1146}
1147
1148static int snd_ca0106_ac97(struct snd_ca0106 *chip)
1149{
1150	struct snd_ac97_bus *pbus;
1151	struct snd_ac97_template ac97;
1152	int err;
1153	static const struct snd_ac97_bus_ops ops = {
1154		.write = snd_ca0106_ac97_write,
1155		.read = snd_ca0106_ac97_read,
1156	};
1157  
1158	err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus);
1159	if (err < 0)
1160		return err;
1161	pbus->no_vra = 1; /* we don't need VRA */
1162
1163	memset(&ac97, 0, sizeof(ac97));
1164	ac97.private_data = chip;
1165	ac97.scaps = AC97_SCAP_NO_SPDIF;
1166	return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1167}
1168
1169static void ca0106_stop_chip(struct snd_ca0106 *chip);
1170
1171static void snd_ca0106_free(struct snd_card *card)
1172{
1173	struct snd_ca0106 *chip = card->private_data;
1174
1175	ca0106_stop_chip(chip);
1176}
1177
1178static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
1179{
1180	unsigned int status;
1181
1182	struct snd_ca0106 *chip = dev_id;
1183	int i;
1184	int mask;
1185        unsigned int stat76;
1186	struct snd_ca0106_channel *pchannel;
1187
1188	status = inl(chip->port + CA0106_IPR);
1189	if (! status)
1190		return IRQ_NONE;
1191
1192        stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1193	/*
1194	dev_dbg(emu->card->dev, "interrupt status = 0x%08x, stat76=0x%08x\n",
1195		   status, stat76);
1196	dev_dbg(emu->card->dev, "ptr=0x%08x\n",
1197		   snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1198	*/
1199        mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1200	for(i = 0; i < 4; i++) {
1201		pchannel = &(chip->playback_channels[i]);
1202		if (stat76 & mask) {
1203/* FIXME: Select the correct substream for period elapsed */
1204			if(pchannel->use) {
1205				snd_pcm_period_elapsed(pchannel->epcm->substream);
1206				/* dev_dbg(emu->card->dev, "interrupt [%d] used\n", i); */
1207                        }
1208		}
1209		/*
1210		dev_dbg(emu->card->dev, "channel=%p\n", pchannel);
1211		dev_dbg(emu->card->dev, "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1212		*/
1213		mask <<= 1;
1214	}
1215        mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1216	for(i = 0; i < 4; i++) {
1217		pchannel = &(chip->capture_channels[i]);
1218		if (stat76 & mask) {
1219/* FIXME: Select the correct substream for period elapsed */
1220			if(pchannel->use) {
1221				snd_pcm_period_elapsed(pchannel->epcm->substream);
1222				/* dev_dbg(emu->card->dev, "interrupt [%d] used\n", i); */
1223                        }
1224		}
1225		/*
1226		dev_dbg(emu->card->dev, "channel=%p\n", pchannel);
1227		dev_dbg(emu->card->dev, "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1228		*/
1229		mask <<= 1;
1230	}
1231
1232        snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1233
1234	if (chip->midi.dev_id &&
1235	    (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1236		if (chip->midi.interrupt)
1237			chip->midi.interrupt(&chip->midi, status);
1238		else
1239			chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1240	}
1241
1242	// acknowledge the interrupt if necessary
1243	outl(status, chip->port + CA0106_IPR);
1244
1245	return IRQ_HANDLED;
1246}
1247
1248static const struct snd_pcm_chmap_elem surround_map[] = {
1249	{ .channels = 2,
1250	  .map = { SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
1251	{ }
1252};
1253
1254static const struct snd_pcm_chmap_elem clfe_map[] = {
1255	{ .channels = 2,
1256	  .map = { SNDRV_CHMAP_FC, SNDRV_CHMAP_LFE } },
1257	{ }
1258};
1259
1260static const struct snd_pcm_chmap_elem side_map[] = {
1261	{ .channels = 2,
1262	  .map = { SNDRV_CHMAP_SL, SNDRV_CHMAP_SR } },
1263	{ }
1264};
1265
1266static int snd_ca0106_pcm(struct snd_ca0106 *emu, int device)
1267{
1268	struct snd_pcm *pcm;
1269	struct snd_pcm_substream *substream;
1270	const struct snd_pcm_chmap_elem *map = NULL;
1271	int err;
1272  
1273	err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm);
1274	if (err < 0)
1275		return err;
1276  
1277	pcm->private_data = emu;
1278
1279	switch (device) {
1280	case 0:
1281	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1282	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1283	  map = snd_pcm_std_chmaps;
1284          break;
1285	case 1:
1286	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1287	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1288	  map = surround_map;
1289          break;
1290	case 2:
1291	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1292	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1293	  map = clfe_map;
1294          break;
1295	case 3:
1296	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1297	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1298	  map = side_map;
1299          break;
1300        }
1301
1302	pcm->info_flags = 0;
1303	strscpy(pcm->name, "CA0106");
1304
1305	for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; 
1306	    substream; 
1307	    substream = substream->next) {
1308		snd_pcm_set_managed_buffer(substream, SNDRV_DMA_TYPE_DEV,
1309					   &emu->pci->dev,
1310					   64*1024, 64*1024);
1311	}
1312
1313	for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; 
1314	      substream; 
1315	      substream = substream->next) {
1316		snd_pcm_set_managed_buffer(substream, SNDRV_DMA_TYPE_DEV,
1317					   &emu->pci->dev,
1318					   64*1024, 64*1024);
1319	}
1320  
1321	err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK, map, 2,
1322				     1 << 2, NULL);
1323	if (err < 0)
1324		return err;
1325
1326	emu->pcm[device] = pcm;
1327  
1328	return 0;
1329}
1330
1331#define SPI_REG(reg, value)	(((reg) << SPI_REG_SHIFT) | (value))
1332static const unsigned int spi_dac_init[] = {
1333	SPI_REG(SPI_LDA1_REG,	SPI_DA_BIT_0dB), /* 0dB dig. attenuation */
1334	SPI_REG(SPI_RDA1_REG,	SPI_DA_BIT_0dB),
1335	SPI_REG(SPI_PL_REG,	SPI_PL_BIT_L_L | SPI_PL_BIT_R_R | SPI_IZD_BIT),
1336	SPI_REG(SPI_FMT_REG,	SPI_FMT_BIT_I2S | SPI_IWL_BIT_24),
1337	SPI_REG(SPI_LDA2_REG,	SPI_DA_BIT_0dB),
1338	SPI_REG(SPI_RDA2_REG,	SPI_DA_BIT_0dB),
1339	SPI_REG(SPI_LDA3_REG,	SPI_DA_BIT_0dB),
1340	SPI_REG(SPI_RDA3_REG,	SPI_DA_BIT_0dB),
1341	SPI_REG(SPI_MASTDA_REG,	SPI_DA_BIT_0dB),
1342	SPI_REG(9,		0x00),
1343	SPI_REG(SPI_MS_REG,	SPI_DACD0_BIT | SPI_DACD1_BIT | SPI_DACD2_BIT),
1344	SPI_REG(12,		0x00),
1345	SPI_REG(SPI_LDA4_REG,	SPI_DA_BIT_0dB),
1346	SPI_REG(SPI_RDA4_REG,	SPI_DA_BIT_0dB | SPI_DA_BIT_UPDATE),
1347	SPI_REG(SPI_DACD4_REG,	SPI_DACD4_BIT),
1348};
1349
1350static const unsigned int i2c_adc_init[][2] = {
1351	{ 0x17, 0x00 }, /* Reset */
1352	{ 0x07, 0x00 }, /* Timeout */
1353	{ 0x0b, 0x22 },  /* Interface control */
1354	{ 0x0c, 0x22 },  /* Master mode control */
1355	{ 0x0d, 0x08 },  /* Powerdown control */
1356	{ 0x0e, 0xcf },  /* Attenuation Left  0x01 = -103dB, 0xff = 24dB */
1357	{ 0x0f, 0xcf },  /* Attenuation Right 0.5dB steps */
1358	{ 0x10, 0x7b },  /* ALC Control 1 */
1359	{ 0x11, 0x00 },  /* ALC Control 2 */
1360	{ 0x12, 0x32 },  /* ALC Control 3 */
1361	{ 0x13, 0x00 },  /* Noise gate control */
1362	{ 0x14, 0xa6 },  /* Limiter control */
1363	{ 0x15, ADC_MUX_LINEIN },  /* ADC Mixer control */
1364};
1365
1366static void ca0106_init_chip(struct snd_ca0106 *chip, int resume)
1367{
1368	int ch;
1369	unsigned int def_bits;
1370
1371	outl(0, chip->port + CA0106_INTE);
1372
1373	/*
1374	 *  Init to 0x02109204 :
1375	 *  Clock accuracy    = 0     (1000ppm)
1376	 *  Sample Rate       = 2     (48kHz)
1377	 *  Audio Channel     = 1     (Left of 2)
1378	 *  Source Number     = 0     (Unspecified)
1379	 *  Generation Status = 1     (Original for Cat Code 12)
1380	 *  Cat Code          = 12    (Digital Signal Mixer)
1381	 *  Mode              = 0     (Mode 0)
1382	 *  Emphasis          = 0     (None)
1383	 *  CP                = 1     (Copyright unasserted)
1384	 *  AN                = 0     (Audio data)
1385	 *  P                 = 0     (Consumer)
1386	 */
1387	def_bits =
1388		SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1389		SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1390		SPCS_GENERATIONSTATUS | 0x00001200 |
1391		0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT;
1392	if (!resume) {
1393		chip->spdif_str_bits[0] = chip->spdif_bits[0] = def_bits;
1394		chip->spdif_str_bits[1] = chip->spdif_bits[1] = def_bits;
1395		chip->spdif_str_bits[2] = chip->spdif_bits[2] = def_bits;
1396		chip->spdif_str_bits[3] = chip->spdif_bits[3] = def_bits;
1397	}
1398	/* Only SPCS1 has been tested */
1399	snd_ca0106_ptr_write(chip, SPCS1, 0, chip->spdif_str_bits[1]);
1400	snd_ca0106_ptr_write(chip, SPCS0, 0, chip->spdif_str_bits[0]);
1401	snd_ca0106_ptr_write(chip, SPCS2, 0, chip->spdif_str_bits[2]);
1402	snd_ca0106_ptr_write(chip, SPCS3, 0, chip->spdif_str_bits[3]);
1403
1404        snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1405        snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1406
1407        /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1408        outb(AC97_REC_GAIN, chip->port + CA0106_AC97ADDRESS);
1409        outw(0x8000, chip->port + CA0106_AC97DATA);
1410#if 0 /* FIXME: what are these? */
1411	snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1412	snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1413	snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1414	snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1415#endif
1416
1417	/* OSS drivers set this. */
1418	/* snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); */
1419
1420	/* Analog or Digital output */
1421	snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1422	/* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers.
1423	 * Use 0x000f0000 for surround71
1424	 */
1425	snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000);
1426
1427	chip->spdif_enable = 0; /* Set digital SPDIF output off */
1428	/*snd_ca0106_ptr_write(chip, 0x45, 0, 0);*/ /* Analogue out */
1429	/*snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00);*/ /* Digital out */
1430
1431	/* goes to 0x40c80000 when doing SPDIF IN/OUT */
1432	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000);
1433	/* (Mute) CAPTURE feedback into PLAYBACK volume.
1434	 * Only lower 16 bits matter.
1435	 */
1436	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff);
1437	/* SPDIF IN Volume */
1438	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000);
1439	/* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1440	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000);
1441
1442	snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1443	snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1444	snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1445	snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1446
1447	for (ch = 0; ch < 4; ch++) {
1448		/* Only high 16 bits matter */
1449		snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030);
1450		snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1451#if 0 /* Mute */
1452		snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040);
1453		snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040);
1454		snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff);
1455		snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff);
1456#endif
1457	}
1458	if (chip->details->i2c_adc == 1) {
1459	        /* Select MIC, Line in, TAD in, AUX in */
1460	        snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1461		/* Default to CAPTURE_SOURCE to i2s in */
1462		if (!resume)
1463			chip->capture_source = 3;
1464	} else if (chip->details->ac97 == 1) {
1465	        /* Default to AC97 in */
1466	        snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x444400e4);
1467		/* Default to CAPTURE_SOURCE to AC97 in */
1468		if (!resume)
1469			chip->capture_source = 4;
1470	} else {
1471	        /* Select MIC, Line in, TAD in, AUX in */
1472	        snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1473		/* Default to Set CAPTURE_SOURCE to i2s in */
1474		if (!resume)
1475			chip->capture_source = 3;
1476	}
1477
1478	if (chip->details->gpio_type == 2) {
1479		/* The SB0438 use GPIO differently. */
1480		/* FIXME: Still need to find out what the other GPIO bits do.
1481		 * E.g. For digital spdif out.
1482		 */
1483		outl(0x0, chip->port + CA0106_GPIO);
1484		/* outl(0x00f0e000, chip->port + CA0106_GPIO); */ /* Analog */
1485		outl(0x005f5301, chip->port + CA0106_GPIO); /* Analog */
1486	} else if (chip->details->gpio_type == 1) {
1487		/* The SB0410 and SB0413 use GPIO differently. */
1488		/* FIXME: Still need to find out what the other GPIO bits do.
1489		 * E.g. For digital spdif out.
1490		 */
1491		outl(0x0, chip->port + CA0106_GPIO);
1492		/* outl(0x00f0e000, chip->port + CA0106_GPIO); */ /* Analog */
1493		outl(0x005f5301, chip->port + CA0106_GPIO); /* Analog */
1494	} else {
1495		outl(0x0, chip->port + CA0106_GPIO);
1496		outl(0x005f03a3, chip->port + CA0106_GPIO); /* Analog */
1497		/* outl(0x005f02a2, chip->port + CA0106_GPIO); */ /* SPDIF */
1498	}
1499	snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1500
1501	/* outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG); */
1502	/* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1503	/* outl(0x00001409, chip->port + CA0106_HCFG); */
1504	/* outl(0x00000009, chip->port + CA0106_HCFG); */
1505	/* AC97 2.0, Enable outputs. */
1506	outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port + CA0106_HCFG);
1507
1508	if (chip->details->i2c_adc == 1) {
1509		/* The SB0410 and SB0413 use I2C to control ADC. */
1510		int size, n;
1511
1512		size = ARRAY_SIZE(i2c_adc_init);
1513		/* dev_dbg(emu->card->dev, "I2C:array size=0x%x\n", size); */
1514		for (n = 0; n < size; n++)
1515			snd_ca0106_i2c_write(chip, i2c_adc_init[n][0],
1516					     i2c_adc_init[n][1]);
1517		for (n = 0; n < 4; n++) {
1518			chip->i2c_capture_volume[n][0] = 0xcf;
1519			chip->i2c_capture_volume[n][1] = 0xcf;
1520		}
1521		chip->i2c_capture_source = 2; /* Line in */
1522		/* Enable Line-in capture. MIC in currently untested. */
1523		/* snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); */
1524	}
1525
1526	if (chip->details->spi_dac) {
1527		/* The SB0570 use SPI to control DAC. */
1528		int size, n;
1529
1530		size = ARRAY_SIZE(spi_dac_init);
1531		for (n = 0; n < size; n++) {
1532			int reg = spi_dac_init[n] >> SPI_REG_SHIFT;
1533
1534			snd_ca0106_spi_write(chip, spi_dac_init[n]);
1535			if (reg < ARRAY_SIZE(chip->spi_dac_reg))
1536				chip->spi_dac_reg[reg] = spi_dac_init[n];
1537		}
1538
1539		/* Enable front dac only */
1540		snd_ca0106_pcm_power_dac(chip, PCM_FRONT_CHANNEL, 1);
1541	}
1542}
1543
1544static void ca0106_stop_chip(struct snd_ca0106 *chip)
1545{
1546	/* disable interrupts */
1547	snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
1548	outl(0, chip->port + CA0106_INTE);
1549	snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
1550	udelay(1000);
1551	/* disable audio */
1552	/* outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG); */
1553	outl(0, chip->port + CA0106_HCFG);
1554	/* FIXME: We need to stop and DMA transfers here.
1555	 *        But as I am not sure how yet, we cannot from the dma pages.
1556	 * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
1557	 */
1558}
1559
1560static int snd_ca0106_create(int dev, struct snd_card *card,
1561			     struct pci_dev *pci)
1562{
1563	struct snd_ca0106 *chip = card->private_data;
1564	const struct snd_ca0106_details *c;
1565	int err;
1566
1567	err = pcim_enable_device(pci);
1568	if (err < 0)
1569		return err;
1570	if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32))) {
1571		dev_err(card->dev, "error to set 32bit mask DMA\n");
1572		return -ENXIO;
1573	}
1574
1575	chip->card = card;
1576	chip->pci = pci;
1577	chip->irq = -1;
1578
1579	spin_lock_init(&chip->emu_lock);
1580
1581	err = pcim_request_all_regions(pci, "snd_ca0106");
1582	if (err < 0)
1583		return err;
1584	chip->port = pci_resource_start(pci, 0);
1585
1586	if (devm_request_irq(&pci->dev, pci->irq, snd_ca0106_interrupt,
1587			     IRQF_SHARED, KBUILD_MODNAME, chip)) {
1588		dev_err(card->dev, "cannot grab irq\n");
1589		return -EBUSY;
1590	}
1591	chip->irq = pci->irq;
1592	card->sync_irq = chip->irq;
1593
1594	/* This stores the periods table. */
1595	chip->buffer = snd_devm_alloc_pages(&pci->dev, SNDRV_DMA_TYPE_DEV, 1024);
1596	if (!chip->buffer)
1597		return -ENOMEM;
1598
1599	pci_set_master(pci);
1600	/* read serial */
1601	pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1602	pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1603	dev_info(card->dev, "Model %04x Rev %08x Serial %08x\n",
1604	       chip->model, pci->revision, chip->serial);
1605	strscpy(card->driver, "CA0106");
1606	strscpy(card->shortname, "CA0106");
1607
1608	for (c = ca0106_chip_details; c->serial; c++) {
1609		if (subsystem[dev]) {
1610			if (c->serial == subsystem[dev])
1611				break;
1612		} else if (c->serial == chip->serial)
1613			break;
1614	}
1615	chip->details = c;
1616	if (subsystem[dev]) {
1617		dev_info(card->dev, "Sound card name=%s, "
1618		       "subsystem=0x%x. Forced to subsystem=0x%x\n",
1619		       c->name, chip->serial, subsystem[dev]);
1620	}
1621
1622	sprintf(card->longname, "%s at 0x%lx irq %i",
1623		c->name, chip->port, chip->irq);
1624
1625	ca0106_init_chip(chip, 0);
1626	return 0;
1627}
1628
1629
1630static void ca0106_midi_interrupt_enable(struct snd_ca_midi *midi, int intr)
1631{
1632	snd_ca0106_intr_enable((struct snd_ca0106 *)(midi->dev_id), intr);
1633}
1634
1635static void ca0106_midi_interrupt_disable(struct snd_ca_midi *midi, int intr)
1636{
1637	snd_ca0106_intr_disable((struct snd_ca0106 *)(midi->dev_id), intr);
1638}
1639
1640static unsigned char ca0106_midi_read(struct snd_ca_midi *midi, int idx)
1641{
1642	return (unsigned char)snd_ca0106_ptr_read((struct snd_ca0106 *)(midi->dev_id),
1643						  midi->port + idx, 0);
1644}
1645
1646static void ca0106_midi_write(struct snd_ca_midi *midi, int data, int idx)
1647{
1648	snd_ca0106_ptr_write((struct snd_ca0106 *)(midi->dev_id), midi->port + idx, 0, data);
1649}
1650
1651static struct snd_card *ca0106_dev_id_card(void *dev_id)
1652{
1653	return ((struct snd_ca0106 *)dev_id)->card;
1654}
1655
1656static int ca0106_dev_id_port(void *dev_id)
1657{
1658	return ((struct snd_ca0106 *)dev_id)->port;
1659}
1660
1661static int snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
1662{
1663	struct snd_ca_midi *midi;
1664	char *name;
1665	int err;
1666
1667	if (channel == CA0106_MIDI_CHAN_B) {
1668		name = "CA0106 MPU-401 (UART) B";
1669		midi =  &chip->midi2;
1670		midi->tx_enable = INTE_MIDI_TX_B;
1671		midi->rx_enable = INTE_MIDI_RX_B;
1672		midi->ipr_tx = IPR_MIDI_TX_B;
1673		midi->ipr_rx = IPR_MIDI_RX_B;
1674		midi->port = MIDI_UART_B_DATA;
1675	} else {
1676		name = "CA0106 MPU-401 (UART)";
1677		midi =  &chip->midi;
1678		midi->tx_enable = INTE_MIDI_TX_A;
1679		midi->rx_enable = INTE_MIDI_TX_B;
1680		midi->ipr_tx = IPR_MIDI_TX_A;
1681		midi->ipr_rx = IPR_MIDI_RX_A;
1682		midi->port = MIDI_UART_A_DATA;
1683	}
1684
1685	midi->reset = CA0106_MPU401_RESET;
1686	midi->enter_uart = CA0106_MPU401_ENTER_UART;
1687	midi->ack = CA0106_MPU401_ACK;
1688
1689	midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1690	midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1691
1692	midi->channel = channel;
1693
1694	midi->interrupt_enable = ca0106_midi_interrupt_enable;
1695	midi->interrupt_disable = ca0106_midi_interrupt_disable;
1696
1697	midi->read = ca0106_midi_read;
1698	midi->write = ca0106_midi_write;
1699
1700	midi->get_dev_id_card = ca0106_dev_id_card;
1701	midi->get_dev_id_port = ca0106_dev_id_port;
1702
1703	midi->dev_id = chip;
1704	
1705	err = ca_midi_init(chip, midi, 0, name);
1706	if (err < 0)
1707		return err;
1708
1709	return 0;
1710}
1711
1712
1713static int __snd_ca0106_probe(struct pci_dev *pci,
1714			      const struct pci_device_id *pci_id)
1715{
1716	static int dev;
1717	struct snd_card *card;
1718	struct snd_ca0106 *chip;
1719	int i, err;
1720
1721	if (dev >= SNDRV_CARDS)
1722		return -ENODEV;
1723	if (!enable[dev]) {
1724		dev++;
1725		return -ENOENT;
1726	}
1727
1728	err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1729				sizeof(*chip), &card);
1730	if (err < 0)
1731		return err;
1732	chip = card->private_data;
1733
1734	err = snd_ca0106_create(dev, card, pci);
1735	if (err < 0)
1736		return err;
1737	card->private_free = snd_ca0106_free;
1738
1739	for (i = 0; i < 4; i++) {
1740		err = snd_ca0106_pcm(chip, i);
1741		if (err < 0)
1742			return err;
1743	}
1744
1745	if (chip->details->ac97 == 1) {
1746		/* The SB0410 and SB0413 do not have an AC97 chip. */
1747		err = snd_ca0106_ac97(chip);
1748		if (err < 0)
1749			return err;
1750	}
1751	err = snd_ca0106_mixer(chip);
1752	if (err < 0)
1753		return err;
1754
1755	dev_dbg(card->dev, "probe for MIDI channel A ...");
1756	err = snd_ca0106_midi(chip, CA0106_MIDI_CHAN_A);
1757	if (err < 0)
1758		return err;
1759	dev_dbg(card->dev, " done.\n");
1760
1761#ifdef CONFIG_SND_PROC_FS
1762	snd_ca0106_proc_init(chip);
1763#endif
1764
1765	err = snd_card_register(card);
1766	if (err < 0)
1767		return err;
1768
1769	pci_set_drvdata(pci, card);
1770	dev++;
1771	return 0;
1772}
1773
1774static int snd_ca0106_probe(struct pci_dev *pci,
1775			    const struct pci_device_id *pci_id)
1776{
1777	return snd_card_free_on_error(&pci->dev, __snd_ca0106_probe(pci, pci_id));
1778}
1779
1780#ifdef CONFIG_PM_SLEEP
1781static int snd_ca0106_suspend(struct device *dev)
1782{
1783	struct snd_card *card = dev_get_drvdata(dev);
1784	struct snd_ca0106 *chip = card->private_data;
1785
1786	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1787	if (chip->details->ac97)
1788		snd_ac97_suspend(chip->ac97);
1789	snd_ca0106_mixer_suspend(chip);
1790
1791	ca0106_stop_chip(chip);
1792	return 0;
1793}
1794
1795static int snd_ca0106_resume(struct device *dev)
1796{
1797	struct snd_card *card = dev_get_drvdata(dev);
1798	struct snd_ca0106 *chip = card->private_data;
1799	int i;
1800
1801	ca0106_init_chip(chip, 1);
1802
1803	if (chip->details->ac97)
1804		snd_ac97_resume(chip->ac97);
1805	snd_ca0106_mixer_resume(chip);
1806	if (chip->details->spi_dac) {
1807		for (i = 0; i < ARRAY_SIZE(chip->spi_dac_reg); i++)
1808			snd_ca0106_spi_write(chip, chip->spi_dac_reg[i]);
1809	}
1810
1811	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1812	return 0;
1813}
1814
1815static SIMPLE_DEV_PM_OPS(snd_ca0106_pm, snd_ca0106_suspend, snd_ca0106_resume);
1816#define SND_CA0106_PM_OPS	&snd_ca0106_pm
1817#else
1818#define SND_CA0106_PM_OPS	NULL
1819#endif
1820
1821// PCI IDs
1822static const struct pci_device_id snd_ca0106_ids[] = {
1823	{ PCI_VDEVICE(CREATIVE, 0x0007), 0 },	/* Audigy LS or Live 24bit */
1824	{ 0, }
1825};
1826MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1827
1828// pci_driver definition
1829static struct pci_driver ca0106_driver = {
1830	.name = KBUILD_MODNAME,
1831	.id_table = snd_ca0106_ids,
1832	.probe = snd_ca0106_probe,
1833	.driver = {
1834		.pm = SND_CA0106_PM_OPS,
1835	},
1836};
1837
1838module_pci_driver(ca0106_driver);
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