sound/pci/ca0106/ca0106_main.c

   1 /*
   2  *  Copyright (c) 2004 James Courtier-Dutton <James@superbug.demon.co.uk>
   3  *  Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit
   4  *  Version: 0.0.25
   5  *
   6  *  FEATURES currently supported:
   7  *    Front, Rear and Center/LFE.
   8  *    Surround40 and Surround51.
   9  *    Capture from MIC an LINE IN input.
  10  *    SPDIF digital playback of PCM stereo and AC3/DTS works.
  11  *    (One can use a standard mono mini-jack to one RCA plugs cable.
  12  *     or one can use a standard stereo mini-jack to two RCA plugs cable.
  13  *     Plug one of the RCA plugs into the Coax input of the external decoder/receiver.)
  14  *    ( In theory one could output 3 different AC3 streams at once, to 3 different SPDIF outputs. )
  15  *    Notes on how to capture sound:
  16  *      The AC97 is used in the PLAYBACK direction.
  17  *      The output from the AC97 chip, instead of reaching the speakers, is fed into the Philips 1361T ADC.
  18  *      So, to record from the MIC, set the MIC Playback volume to max,
  19  *      unmute the MIC and turn up the MASTER Playback volume.
  20  *      So, to prevent feedback when capturing, minimise the "Capture feedback into Playback" volume.
  21  *
  22  *    The only playback controls that currently do anything are: -
  23  *    Analog Front
  24  *    Analog Rear
  25  *    Analog Center/LFE
  26  *    SPDIF Front
  27  *    SPDIF Rear
  28  *    SPDIF Center/LFE
  29  *
  30  *    For capture from Mic in or Line in.
  31  *    Digital/Analog ( switch must be in Analog mode for CAPTURE. )
  32  *
  33  *    CAPTURE feedback into PLAYBACK
  34  *
  35  *  Changelog:
  36  *    Support interrupts per period.
  37  *    Removed noise from Center/LFE channel when in Analog mode.
  38  *    Rename and remove mixer controls.
  39  *  0.0.6
  40  *    Use separate card based DMA buffer for periods table list.
  41  *  0.0.7
  42  *    Change remove and rename ctrls into lists.
  43  *  0.0.8
  44  *    Try to fix capture sources.
  45  *  0.0.9
  46  *    Fix AC3 output.
  47  *    Enable S32_LE format support.
  48  *  0.0.10
  49  *    Enable playback 48000 and 96000 rates. (Rates other that these do not work, even with "plug:front".)
  50  *  0.0.11
  51  *    Add Model name recognition.
  52  *  0.0.12
  53  *    Correct interrupt timing. interrupt at end of period, instead of in the middle of a playback period.
  54  *    Remove redundent "voice" handling.
  55  *  0.0.13
  56  *    Single trigger call for multi channels.
  57  *  0.0.14
  58  *    Set limits based on what the sound card hardware can do.
  59  *    playback periods_min=2, periods_max=8
  60  *    capture hw constraints require period_size = n * 64 bytes.
  61  *    playback hw constraints require period_size = n * 64 bytes.
  62  *  0.0.15
  63  *    Minor updates.
  64  *  0.0.16
  65  *    Implement 192000 sample rate.
  66  *  0.0.17
  67  *    Add support for SB0410 and SB0413.
  68  *  0.0.18
  69  *    Modified Copyright message.
  70  *  0.0.19
  71  *    Finally fix support for SB Live 24 bit. SB0410 and SB0413.
  72  *    The output codec needs resetting, otherwise all output is muted.
  73  *  0.0.20
  74  *    Merge "pci_disable_device(pci);" fixes.
  75  *  0.0.21
  76  *    Add 4 capture channels. (SPDIF only comes in on channel 0. )
  77  *    Add SPDIF capture using optional digital I/O module for SB Live 24bit. (Analog capture does not yet work.)
  78  *  0.0.22
  79  *    Add support for MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97. From kiksen, bug #901
  80  *  0.0.23
  81  *    Implement support for Line-in capture on SB Live 24bit.
  82  *  0.0.24
  83  *    Add support for mute control on SB Live 24bit (cards w/ SPI DAC)
  84  *  0.0.25
  85  *    Powerdown SPI DAC channels when not in use
  86  *
  87  *  BUGS:
  88  *    Some stability problems when unloading the snd-ca0106 kernel module.
  89  *    --
  90  *
  91  *  TODO:
  92  *    4 Capture channels, only one implemented so far.
  93  *    Other capture rates apart from 48khz not implemented.
  94  *    MIDI
  95  *    --
  96  *  GENERAL INFO:
  97  *    Model: SB0310
  98  *    P17 Chip: CA0106-DAT
  99  *    AC97 Codec: STAC 9721
 100  *    ADC: Philips 1361T (Stereo 24bit)
 101  *    DAC: WM8746EDS (6-channel, 24bit, 192Khz)
 102  *
 103  *  GENERAL INFO:
 104  *    Model: SB0410
 105  *    P17 Chip: CA0106-DAT
 106  *    AC97 Codec: None
 107  *    ADC: WM8775EDS (4 Channel)
 108  *    DAC: CS4382 (114 dB, 24-Bit, 192 kHz, 8-Channel D/A Converter with DSD Support)
 109  *    SPDIF Out control switches between Mic in and SPDIF out.
 110  *    No sound out or mic input working yet.
 111  *
 112  *  GENERAL INFO:
 113  *    Model: SB0413
 114  *    P17 Chip: CA0106-DAT
 115  *    AC97 Codec: None.
 116  *    ADC: Unknown
 117  *    DAC: Unknown
 118  *    Trying to handle it like the SB0410.
 119  *
 120  *  This code was initally based on code from ALSA's emu10k1x.c which is:
 121  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
 122  *
 123  *   This program is free software; you can redistribute it and/or modify
 124  *   it under the terms of the GNU General Public License as published by
 125  *   the Free Software Foundation; either version 2 of the License, or
 126  *   (at your option) any later version.
 127  *
 128  *   This program is distributed in the hope that it will be useful,
 129  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 130  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 131  *   GNU General Public License for more details.
 132  *
 133  *   You should have received a copy of the GNU General Public License
 134  *   along with this program; if not, write to the Free Software
 135  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 136  *
 137  */
 138 #include <sound/driver.h>
 139 #include <linux/delay.h>
 140 #include <linux/init.h>
 141 #include <linux/interrupt.h>
 142 #include <linux/pci.h>
 143 #include <linux/slab.h>
 144 #include <linux/moduleparam.h>
 145 #include <linux/dma-mapping.h>
 146 #include <sound/core.h>
 147 #include <sound/initval.h>
 148 #include <sound/pcm.h>
 149 #include <sound/ac97_codec.h>
 150 #include <sound/info.h>
 151
 152 MODULE_AUTHOR("James Courtier-Dutton <James@superbug.demon.co.uk>");
 153 MODULE_DESCRIPTION("CA0106");
 154 MODULE_LICENSE("GPL");
 155 MODULE_SUPPORTED_DEVICE("{{Creative,SB CA0106 chip}}");
 156
 157 // module parameters (see "Module Parameters")
 158 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
 159 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
 160 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
 161 static uint subsystem[SNDRV_CARDS]; /* Force card subsystem model */
 162
 163 module_param_array(index, int, NULL, 0444);
 164 MODULE_PARM_DESC(index, "Index value for the CA0106 soundcard.");
 165 module_param_array(id, charp, NULL, 0444);
 166 MODULE_PARM_DESC(id, "ID string for the CA0106 soundcard.");
 167 module_param_array(enable, bool, NULL, 0444);
 168 MODULE_PARM_DESC(enable, "Enable the CA0106 soundcard.");
 169 module_param_array(subsystem, uint, NULL, 0444);
 170 MODULE_PARM_DESC(subsystem, "Force card subsystem model.");
 171
 172 #include "ca0106.h"
 173
 174 static struct snd_ca0106_details ca0106_chip_details[] = {
 175          /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
 176          /* It is really just a normal SB Live 24bit. */
 177          /* Tested:
 178           * See ALSA bug#3251
 179           */
 180          { .serial = 0x10131102,
 181            .name   = "X-Fi Extreme Audio [SBxxxx]",
 182            .gpio_type = 1,
 183            .i2c_adc = 1 } ,
 184          /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
 185          /* It is really just a normal SB Live 24bit. */
 186          /*
 187           * CTRL:CA0111-WTLF
 188           * ADC: WM8775SEDS
 189           * DAC: CS4382-KQZ
 190           */
 191          /* Tested:
 192           * Playback on front, rear, center/lfe speakers
 193           * Capture from Mic in.
 194           * Not-Tested:
 195           * Capture from Line in.
 196           * Playback to digital out.
 197           */
 198          { .serial = 0x10121102,
 199            .name   = "X-Fi Extreme Audio [SB0790]",
 200            .gpio_type = 1,
 201            .i2c_adc = 1 } ,
 202          /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
 203          /* AudigyLS[SB0310] */
 204          { .serial = 0x10021102,
 205            .name   = "AudigyLS [SB0310]",
 206            .ac97   = 1 } ,
 207          /* Unknown AudigyLS that also says SB0310 on it */
 208          { .serial = 0x10051102,
 209            .name   = "AudigyLS [SB0310b]",
 210            .ac97   = 1 } ,
 211          /* New Sound Blaster Live! 7.1 24bit. This does not have an AC97. 53SB041000001 */
 212          { .serial = 0x10061102,
 213            .name   = "Live! 7.1 24bit [SB0410]",
 214            .gpio_type = 1,
 215            .i2c_adc = 1 } ,
 216          /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
 217          { .serial = 0x10071102,
 218            .name   = "Live! 7.1 24bit [SB0413]",
 219            .gpio_type = 1,
 220            .i2c_adc = 1 } ,
 221          /* New Audigy SE. Has a different DAC. */
 222          /* SB0570:
 223           * CTRL:CA0106-DAT
 224           * ADC: WM8775EDS
 225           * DAC: WM8768GEDS
 226           */
 227          { .serial = 0x100a1102,
 228            .name   = "Audigy SE [SB0570]",
 229            .gpio_type = 1,
 230            .i2c_adc = 1,
 231            .spi_dac = 1 } ,
 232          /* New Audigy LS. Has a different DAC. */
 233          /* SB0570:
 234           * CTRL:CA0106-DAT
 235           * ADC: WM8775EDS
 236           * DAC: WM8768GEDS
 237           */
 238          { .serial = 0x10111102,
 239            .name   = "Audigy SE OEM [SB0570a]",
 240            .gpio_type = 1,
 241            .i2c_adc = 1,
 242            .spi_dac = 1 } ,
 243          /* MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97 */
 244          /* SB0438
 245           * CTRL:CA0106-DAT
 246           * ADC: WM8775SEDS
 247           * DAC: CS4382-KQZ
 248           */
 249          { .serial = 0x10091462,
 250            .name   = "MSI K8N Diamond MB [SB0438]",
 251            .gpio_type = 2,
 252            .i2c_adc = 1 } ,
 253          /* Shuttle XPC SD31P which has an onboard Creative Labs
 254           * Sound Blaster Live! 24-bit EAX
 255           * high-definition 7.1 audio processor".
 256           * Added using info from andrewvegan in alsa bug #1298
 257           */
 258          { .serial = 0x30381297,
 259            .name   = "Shuttle XPC SD31P [SD31P]",
 260            .gpio_type = 1,
 261            .i2c_adc = 1 } ,
 262         /* Shuttle XPC SD11G5 which has an onboard Creative Labs
 263          * Sound Blaster Live! 24-bit EAX
 264          * high-definition 7.1 audio processor".
 265          * Fixes ALSA bug#1600
 266          */
 267         { .serial = 0x30411297,
 268           .name = "Shuttle XPC SD11G5 [SD11G5]",
 269           .gpio_type = 1,
 270           .i2c_adc = 1 } ,
 271          { .serial = 0,
 272            .name   = "AudigyLS [Unknown]" }
 273 };
 274
 275 /* hardware definition */
 276 static struct snd_pcm_hardware snd_ca0106_playback_hw = {
 277         .info =                 (SNDRV_PCM_INFO_MMAP |
 278                                  SNDRV_PCM_INFO_INTERLEAVED |
 279                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 280                                  SNDRV_PCM_INFO_MMAP_VALID),
 281         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
 282         .rates =                (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |
 283                                  SNDRV_PCM_RATE_192000),
 284         .rate_min =             48000,
 285         .rate_max =             192000,
 286         .channels_min =         2,  //1,
 287         .channels_max =         2,  //6,
 288         .buffer_bytes_max =     ((65536 - 64) * 8),
 289         .period_bytes_min =     64,
 290         .period_bytes_max =     (65536 - 64),
 291         .periods_min =          2,
 292         .periods_max =          8,
 293         .fifo_size =            0,
 294 };
 295
 296 static struct snd_pcm_hardware snd_ca0106_capture_hw = {
 297         .info =                 (SNDRV_PCM_INFO_MMAP |
 298                                  SNDRV_PCM_INFO_INTERLEAVED |
 299                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 300                                  SNDRV_PCM_INFO_MMAP_VALID),
 301         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
 302         .rates =                (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
 303                                  SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
 304         .rate_min =             44100,
 305         .rate_max =             192000,
 306         .channels_min =         2,
 307         .channels_max =         2,
 308         .buffer_bytes_max =     ((65536 - 64) * 8),
 309         .period_bytes_min =     64,
 310         .period_bytes_max =     (65536 - 64),
 311         .periods_min =          2,
 312         .periods_max =          2,
 313         .fifo_size =            0,
 314 };
 315
 316 unsigned int snd_ca0106_ptr_read(struct snd_ca0106 * emu,
 317                                           unsigned int reg,
 318                                           unsigned int chn)
 319 {
 320         unsigned long flags;
 321         unsigned int regptr, val;
 322
 323         regptr = (reg << 16) | chn;
 324
 325         spin_lock_irqsave(&emu->emu_lock, flags);
 326         outl(regptr, emu->port + PTR);
 327         val = inl(emu->port + DATA);
 328         spin_unlock_irqrestore(&emu->emu_lock, flags);
 329         return val;
 330 }
 331
 332 void snd_ca0106_ptr_write(struct snd_ca0106 *emu,
 333                                    unsigned int reg,
 334                                    unsigned int chn,
 335                                    unsigned int data)
 336 {
 337         unsigned int regptr;
 338         unsigned long flags;
 339
 340         regptr = (reg << 16) | chn;
 341
 342         spin_lock_irqsave(&emu->emu_lock, flags);
 343         outl(regptr, emu->port + PTR);
 344         outl(data, emu->port + DATA);
 345         spin_unlock_irqrestore(&emu->emu_lock, flags);
 346 }
 347
 348 int snd_ca0106_spi_write(struct snd_ca0106 * emu,
 349                                    unsigned int data)
 350 {
 351         unsigned int reset, set;
 352         unsigned int reg, tmp;
 353         int n, result;
 354         reg = SPI;
 355         if (data > 0xffff) /* Only 16bit values allowed */
 356                 return 1;
 357         tmp = snd_ca0106_ptr_read(emu, reg, 0);
 358         reset = (tmp & ~0x3ffff) | 0x20000; /* Set xxx20000 */
 359         set = reset | 0x10000; /* Set xxx1xxxx */
 360         snd_ca0106_ptr_write(emu, reg, 0, reset | data);
 361         tmp = snd_ca0106_ptr_read(emu, reg, 0); /* write post */
 362         snd_ca0106_ptr_write(emu, reg, 0, set | data);
 363         result = 1;
 364         /* Wait for status bit to return to 0 */
 365         for (n = 0; n < 100; n++) {
 366                 udelay(10);
 367                 tmp = snd_ca0106_ptr_read(emu, reg, 0);
 368                 if (!(tmp & 0x10000)) {
 369                         result = 0;
 370                         break;
 371                 }
 372         }
 373         if (result) /* Timed out */
 374                 return 1;
 375         snd_ca0106_ptr_write(emu, reg, 0, reset | data);
 376         tmp = snd_ca0106_ptr_read(emu, reg, 0); /* Write post */
 377         return 0;
 378 }
 379
 380 /* The ADC does not support i2c read, so only write is implemented */
 381 int snd_ca0106_i2c_write(struct snd_ca0106 *emu,
 382                                 u32 reg,
 383                                 u32 value)
 384 {
 385         u32 tmp;
 386         int timeout = 0;
 387         int status;
 388         int retry;
 389         if ((reg > 0x7f) || (value > 0x1ff)) {
 390                 snd_printk(KERN_ERR "i2c_write: invalid values.\n");
 391                 return -EINVAL;
 392         }
 393
 394         tmp = reg << 25 | value << 16;
 395         // snd_printk("I2C-write:reg=0x%x, value=0x%x\n", reg, value);
 396         /* Not sure what this I2C channel controls. */
 397         /* snd_ca0106_ptr_write(emu, I2C_D0, 0, tmp); */
 398
 399         /* This controls the I2C connected to the WM8775 ADC Codec */
 400         snd_ca0106_ptr_write(emu, I2C_D1, 0, tmp);
 401
 402         for (retry = 0; retry < 10; retry++) {
 403                 /* Send the data to i2c */
 404                 //tmp = snd_ca0106_ptr_read(emu, I2C_A, 0);
 405                 //tmp = tmp & ~(I2C_A_ADC_READ|I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD_MASK);
 406                 tmp = 0;
 407                 tmp = tmp | (I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD);
 408                 snd_ca0106_ptr_write(emu, I2C_A, 0, tmp);
 409
 410                 /* Wait till the transaction ends */
 411                 while (1) {
 412                         status = snd_ca0106_ptr_read(emu, I2C_A, 0);
 413                         //snd_printk("I2C:status=0x%x\n", status);
 414                         timeout++;
 415                         if ((status & I2C_A_ADC_START) == 0)
 416                                 break;
 417
 418                         if (timeout > 1000)
 419                                 break;
 420                 }
 421                 //Read back and see if the transaction is successful
 422                 if ((status & I2C_A_ADC_ABORT) == 0)
 423                         break;
 424         }
 425
 426         if (retry == 10) {
 427                 snd_printk(KERN_ERR "Writing to ADC failed!\n");
 428                 return -EINVAL;
 429         }
 430
 431         return 0;
 432 }
 433
 434
 435 static void snd_ca0106_intr_enable(struct snd_ca0106 *emu, unsigned int intrenb)
 436 {
 437         unsigned long flags;
 438         unsigned int enable;
 439
 440         spin_lock_irqsave(&emu->emu_lock, flags);
 441         enable = inl(emu->port + INTE) | intrenb;
 442         outl(enable, emu->port + INTE);
 443         spin_unlock_irqrestore(&emu->emu_lock, flags);
 444 }
 445
 446 static void snd_ca0106_intr_disable(struct snd_ca0106 *emu, unsigned int intrenb)
 447 {
 448         unsigned long flags;
 449         unsigned int enable;
 450
 451         spin_lock_irqsave(&emu->emu_lock, flags);
 452         enable = inl(emu->port + INTE) & ~intrenb;
 453         outl(enable, emu->port + INTE);
 454         spin_unlock_irqrestore(&emu->emu_lock, flags);
 455 }
 456
 457
 458 static void snd_ca0106_pcm_free_substream(struct snd_pcm_runtime *runtime)
 459 {
 460         kfree(runtime->private_data);
 461 }
 462
 463 static const int spi_dacd_reg[] = {
 464         [PCM_FRONT_CHANNEL]     = SPI_DACD4_REG,
 465         [PCM_REAR_CHANNEL]      = SPI_DACD0_REG,
 466         [PCM_CENTER_LFE_CHANNEL]= SPI_DACD2_REG,
 467         [PCM_UNKNOWN_CHANNEL]   = SPI_DACD1_REG,
 468 };
 469 static const int spi_dacd_bit[] = {
 470         [PCM_FRONT_CHANNEL]     = SPI_DACD4_BIT,
 471         [PCM_REAR_CHANNEL]      = SPI_DACD0_BIT,
 472         [PCM_CENTER_LFE_CHANNEL]= SPI_DACD2_BIT,
 473         [PCM_UNKNOWN_CHANNEL]   = SPI_DACD1_BIT,
 474 };
 475
 476 /* open_playback callback */
 477 static int snd_ca0106_pcm_open_playback_channel(struct snd_pcm_substream *substream,
 478                                                 int channel_id)
 479 {
 480         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 481         struct snd_ca0106_channel *channel = &(chip->playback_channels[channel_id]);
 482         struct snd_ca0106_pcm *epcm;
 483         struct snd_pcm_runtime *runtime = substream->runtime;
 484         int err;
 485
 486         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 487
 488         if (epcm == NULL)
 489                 return -ENOMEM;
 490         epcm->emu = chip;
 491         epcm->substream = substream;
 492         epcm->channel_id=channel_id;
 493
 494         runtime->private_data = epcm;
 495         runtime->private_free = snd_ca0106_pcm_free_substream;
 496
 497         runtime->hw = snd_ca0106_playback_hw;
 498
 499         channel->emu = chip;
 500         channel->number = channel_id;
 501
 502         channel->use = 1;
 503         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
 504         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 505         channel->epcm = epcm;
 506         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 507                 return err;
 508         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 509                 return err;
 510
 511         if (chip->details->spi_dac && channel_id != PCM_FRONT_CHANNEL) {
 512                 const int reg = spi_dacd_reg[channel_id];
 513
 514                 /* Power up dac */
 515                 chip->spi_dac_reg[reg] &= ~spi_dacd_bit[channel_id];
 516                 err = snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
 517                 if (err < 0)
 518                         return err;
 519         }
 520         return 0;
 521 }
 522
 523 /* close callback */
 524 static int snd_ca0106_pcm_close_playback(struct snd_pcm_substream *substream)
 525 {
 526         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 527         struct snd_pcm_runtime *runtime = substream->runtime;
 528         struct snd_ca0106_pcm *epcm = runtime->private_data;
 529         chip->playback_channels[epcm->channel_id].use = 0;
 530
 531         if (chip->details->spi_dac && epcm->channel_id != PCM_FRONT_CHANNEL) {
 532                 const int reg = spi_dacd_reg[epcm->channel_id];
 533
 534                 /* Power down DAC */
 535                 chip->spi_dac_reg[reg] |= spi_dacd_bit[epcm->channel_id];
 536                 snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
 537         }
 538         /* FIXME: maybe zero others */
 539         return 0;
 540 }
 541
 542 static int snd_ca0106_pcm_open_playback_front(struct snd_pcm_substream *substream)
 543 {
 544         return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
 545 }
 546
 547 static int snd_ca0106_pcm_open_playback_center_lfe(struct snd_pcm_substream *substream)
 548 {
 549         return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
 550 }
 551
 552 static int snd_ca0106_pcm_open_playback_unknown(struct snd_pcm_substream *substream)
 553 {
 554         return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
 555 }
 556
 557 static int snd_ca0106_pcm_open_playback_rear(struct snd_pcm_substream *substream)
 558 {
 559         return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
 560 }
 561
 562 /* open_capture callback */
 563 static int snd_ca0106_pcm_open_capture_channel(struct snd_pcm_substream *substream,
 564                                                int channel_id)
 565 {
 566         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 567         struct snd_ca0106_channel *channel = &(chip->capture_channels[channel_id]);
 568         struct snd_ca0106_pcm *epcm;
 569         struct snd_pcm_runtime *runtime = substream->runtime;
 570         int err;
 571
 572         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 573         if (epcm == NULL) {
 574                 snd_printk(KERN_ERR "open_capture_channel: failed epcm alloc\n");
 575                 return -ENOMEM;
 576         }
 577         epcm->emu = chip;
 578         epcm->substream = substream;
 579         epcm->channel_id=channel_id;
 580
 581         runtime->private_data = epcm;
 582         runtime->private_free = snd_ca0106_pcm_free_substream;
 583
 584         runtime->hw = snd_ca0106_capture_hw;
 585
 586         channel->emu = chip;
 587         channel->number = channel_id;
 588
 589         channel->use = 1;
 590         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
 591         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 592         channel->epcm = epcm;
 593         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 594                 return err;
 595         //snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
 596         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 597                 return err;
 598         return 0;
 599 }
 600
 601 /* close callback */
 602 static int snd_ca0106_pcm_close_capture(struct snd_pcm_substream *substream)
 603 {
 604         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 605         struct snd_pcm_runtime *runtime = substream->runtime;
 606         struct snd_ca0106_pcm *epcm = runtime->private_data;
 607         chip->capture_channels[epcm->channel_id].use = 0;
 608         /* FIXME: maybe zero others */
 609         return 0;
 610 }
 611
 612 static int snd_ca0106_pcm_open_0_capture(struct snd_pcm_substream *substream)
 613 {
 614         return snd_ca0106_pcm_open_capture_channel(substream, 0);
 615 }
 616
 617 static int snd_ca0106_pcm_open_1_capture(struct snd_pcm_substream *substream)
 618 {
 619         return snd_ca0106_pcm_open_capture_channel(substream, 1);
 620 }
 621
 622 static int snd_ca0106_pcm_open_2_capture(struct snd_pcm_substream *substream)
 623 {
 624         return snd_ca0106_pcm_open_capture_channel(substream, 2);
 625 }
 626
 627 static int snd_ca0106_pcm_open_3_capture(struct snd_pcm_substream *substream)
 628 {
 629         return snd_ca0106_pcm_open_capture_channel(substream, 3);
 630 }
 631
 632 /* hw_params callback */
 633 static int snd_ca0106_pcm_hw_params_playback(struct snd_pcm_substream *substream,
 634                                       struct snd_pcm_hw_params *hw_params)
 635 {
 636         return snd_pcm_lib_malloc_pages(substream,
 637                                         params_buffer_bytes(hw_params));
 638 }
 639
 640 /* hw_free callback */
 641 static int snd_ca0106_pcm_hw_free_playback(struct snd_pcm_substream *substream)
 642 {
 643         return snd_pcm_lib_free_pages(substream);
 644 }
 645
 646 /* hw_params callback */
 647 static int snd_ca0106_pcm_hw_params_capture(struct snd_pcm_substream *substream,
 648                                       struct snd_pcm_hw_params *hw_params)
 649 {
 650         return snd_pcm_lib_malloc_pages(substream,
 651                                         params_buffer_bytes(hw_params));
 652 }
 653
 654 /* hw_free callback */
 655 static int snd_ca0106_pcm_hw_free_capture(struct snd_pcm_substream *substream)
 656 {
 657         return snd_pcm_lib_free_pages(substream);
 658 }
 659
 660 /* prepare playback callback */
 661 static int snd_ca0106_pcm_prepare_playback(struct snd_pcm_substream *substream)
 662 {
 663         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 664         struct snd_pcm_runtime *runtime = substream->runtime;
 665         struct snd_ca0106_pcm *epcm = runtime->private_data;
 666         int channel = epcm->channel_id;
 667         u32 *table_base = (u32 *)(emu->buffer.area+(8*16*channel));
 668         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
 669         u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
 670         u32 hcfg_set = 0x00000000;
 671         u32 hcfg;
 672         u32 reg40_mask = 0x30000 << (channel<<1);
 673         u32 reg40_set = 0;
 674         u32 reg40;
 675         /* FIXME: Depending on mixer selection of SPDIF out or not, select the spdif rate or the DAC rate. */
 676         u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
 677         u32 reg71_set = 0;
 678         u32 reg71;
 679         int i;
 680
 681         //snd_printk("prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, buffer_size=%ld, period_size=%ld, periods=%u, frames_to_bytes=%d\n",channel, runtime->rate, runtime->format, runtime->channels, runtime->buffer_size, runtime->period_size, runtime->periods, frames_to_bytes(runtime, 1));
 682         //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
 683         //snd_printk("dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 684         /* Rate can be set per channel. */
 685         /* reg40 control host to fifo */
 686         /* reg71 controls DAC rate. */
 687         switch (runtime->rate) {
 688         case 44100:
 689                 reg40_set = 0x10000 << (channel<<1);
 690                 reg71_set = 0x01010000;
 691                 break;
 692         case 48000:
 693                 reg40_set = 0;
 694                 reg71_set = 0;
 695                 break;
 696         case 96000:
 697                 reg40_set = 0x20000 << (channel<<1);
 698                 reg71_set = 0x02020000;
 699                 break;
 700         case 192000:
 701                 reg40_set = 0x30000 << (channel<<1);
 702                 reg71_set = 0x03030000;
 703                 break;
 704         default:
 705                 reg40_set = 0;
 706                 reg71_set = 0;
 707                 break;
 708         }
 709         /* Format is a global setting */
 710         /* FIXME: Only let the first channel accessed set this. */
 711         switch (runtime->format) {
 712         case SNDRV_PCM_FORMAT_S16_LE:
 713                 hcfg_set = 0;
 714                 break;
 715         case SNDRV_PCM_FORMAT_S32_LE:
 716                 hcfg_set = HCFG_PLAYBACK_S32_LE;
 717                 break;
 718         default:
 719                 hcfg_set = 0;
 720                 break;
 721         }
 722         hcfg = inl(emu->port + HCFG) ;
 723         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 724         outl(hcfg, emu->port + HCFG);
 725         reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
 726         reg40 = (reg40 & ~reg40_mask) | reg40_set;
 727         snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
 728         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 729         reg71 = (reg71 & ~reg71_mask) | reg71_set;
 730         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 731
 732         /* FIXME: Check emu->buffer.size before actually writing to it. */
 733         for(i=0; i < runtime->periods; i++) {
 734                 table_base[i*2] = runtime->dma_addr + (i * period_size_bytes);
 735                 table_base[i*2+1] = period_size_bytes << 16;
 736         }
 737
 738         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
 739         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
 740         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
 741         snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
 742         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
 743         /* FIXME  test what 0 bytes does. */
 744         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
 745         snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
 746         snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
 747         snd_ca0106_ptr_write(emu, 0x08, channel, 0);
 748         snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
 749 #if 0
 750         snd_ca0106_ptr_write(emu, SPCS0, 0,
 751                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
 752                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
 753                                SPCS_GENERATIONSTATUS | 0x00001200 |
 754                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
 755         }
 756 #endif
 757
 758         return 0;
 759 }
 760
 761 /* prepare capture callback */
 762 static int snd_ca0106_pcm_prepare_capture(struct snd_pcm_substream *substream)
 763 {
 764         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 765         struct snd_pcm_runtime *runtime = substream->runtime;
 766         struct snd_ca0106_pcm *epcm = runtime->private_data;
 767         int channel = epcm->channel_id;
 768         u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
 769         u32 hcfg_set = 0x00000000;
 770         u32 hcfg;
 771         u32 over_sampling=0x2;
 772         u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
 773         u32 reg71_set = 0;
 774         u32 reg71;
 775
 776         //snd_printk("prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, buffer_size=%ld, period_size=%ld, periods=%u, frames_to_bytes=%d\n",channel, runtime->rate, runtime->format, runtime->channels, runtime->buffer_size, runtime->period_size, runtime->periods, frames_to_bytes(runtime, 1));
 777         //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
 778         //snd_printk("dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 779         /* reg71 controls ADC rate. */
 780         switch (runtime->rate) {
 781         case 44100:
 782                 reg71_set = 0x00004000;
 783                 break;
 784         case 48000:
 785                 reg71_set = 0;
 786                 break;
 787         case 96000:
 788                 reg71_set = 0x00008000;
 789                 over_sampling=0xa;
 790                 break;
 791         case 192000:
 792                 reg71_set = 0x0000c000;
 793                 over_sampling=0xa;
 794                 break;
 795         default:
 796                 reg71_set = 0;
 797                 break;
 798         }
 799         /* Format is a global setting */
 800         /* FIXME: Only let the first channel accessed set this. */
 801         switch (runtime->format) {
 802         case SNDRV_PCM_FORMAT_S16_LE:
 803                 hcfg_set = 0;
 804                 break;
 805         case SNDRV_PCM_FORMAT_S32_LE:
 806                 hcfg_set = HCFG_CAPTURE_S32_LE;
 807                 break;
 808         default:
 809                 hcfg_set = 0;
 810                 break;
 811         }
 812         hcfg = inl(emu->port + HCFG) ;
 813         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 814         outl(hcfg, emu->port + HCFG);
 815         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 816         reg71 = (reg71 & ~reg71_mask) | reg71_set;
 817         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 818         if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
 819                 snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
 820         }
 821
 822
 823         //printk("prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, buffer_size=%ld, period_size=%ld, frames_to_bytes=%d\n",channel, runtime->rate, runtime->format, runtime->channels, runtime->buffer_size, runtime->period_size,  frames_to_bytes(runtime, 1));
 824         snd_ca0106_ptr_write(emu, 0x13, channel, 0);
 825         snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
 826         snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
 827         snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
 828
 829         return 0;
 830 }
 831
 832 /* trigger_playback callback */
 833 static int snd_ca0106_pcm_trigger_playback(struct snd_pcm_substream *substream,
 834                                     int cmd)
 835 {
 836         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 837         struct snd_pcm_runtime *runtime;
 838         struct snd_ca0106_pcm *epcm;
 839         int channel;
 840         int result = 0;
 841         struct snd_pcm_substream *s;
 842         u32 basic = 0;
 843         u32 extended = 0;
 844         int running=0;
 845
 846         switch (cmd) {
 847         case SNDRV_PCM_TRIGGER_START:
 848                 running=1;
 849                 break;
 850         case SNDRV_PCM_TRIGGER_STOP:
 851         default:
 852                 running=0;
 853                 break;
 854         }
 855         snd_pcm_group_for_each_entry(s, substream) {
 856                 runtime = s->runtime;
 857                 epcm = runtime->private_data;
 858                 channel = epcm->channel_id;
 859                 //snd_printk("channel=%d\n",channel);
 860                 epcm->running = running;
 861                 basic |= (0x1<<channel);
 862                 extended |= (0x10<<channel);
 863                 snd_pcm_trigger_done(s, substream);
 864         }
 865         //snd_printk("basic=0x%x, extended=0x%x\n",basic, extended);
 866
 867         switch (cmd) {
 868         case SNDRV_PCM_TRIGGER_START:
 869                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (extended));
 870                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(basic));
 871                 break;
 872         case SNDRV_PCM_TRIGGER_STOP:
 873                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(basic));
 874                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(extended));
 875                 break;
 876         default:
 877                 result = -EINVAL;
 878                 break;
 879         }
 880         return result;
 881 }
 882
 883 /* trigger_capture callback */
 884 static int snd_ca0106_pcm_trigger_capture(struct snd_pcm_substream *substream,
 885                                     int cmd)
 886 {
 887         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 888         struct snd_pcm_runtime *runtime = substream->runtime;
 889         struct snd_ca0106_pcm *epcm = runtime->private_data;
 890         int channel = epcm->channel_id;
 891         int result = 0;
 892
 893         switch (cmd) {
 894         case SNDRV_PCM_TRIGGER_START:
 895                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
 896                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
 897                 epcm->running = 1;
 898                 break;
 899         case SNDRV_PCM_TRIGGER_STOP:
 900                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
 901                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
 902                 epcm->running = 0;
 903                 break;
 904         default:
 905                 result = -EINVAL;
 906                 break;
 907         }
 908         return result;
 909 }
 910
 911 /* pointer_playback callback */
 912 static snd_pcm_uframes_t
 913 snd_ca0106_pcm_pointer_playback(struct snd_pcm_substream *substream)
 914 {
 915         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 916         struct snd_pcm_runtime *runtime = substream->runtime;
 917         struct snd_ca0106_pcm *epcm = runtime->private_data;
 918         snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
 919         int channel = epcm->channel_id;
 920
 921         if (!epcm->running)
 922                 return 0;
 923
 924         ptr3 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
 925         ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
 926         ptr4 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
 927         if (ptr3 != ptr4) ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
 928         ptr2 = bytes_to_frames(runtime, ptr1);
 929         ptr2+= (ptr4 >> 3) * runtime->period_size;
 930         ptr=ptr2;
 931         if (ptr >= runtime->buffer_size)
 932                 ptr -= runtime->buffer_size;
 933         //printk("ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n", ptr1, ptr2, ptr, (int)runtime->buffer_size, (int)runtime->period_size, (int)runtime->frame_bits, (int)runtime->rate);
 934
 935         return ptr;
 936 }
 937
 938 /* pointer_capture callback */
 939 static snd_pcm_uframes_t
 940 snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream *substream)
 941 {
 942         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 943         struct snd_pcm_runtime *runtime = substream->runtime;
 944         struct snd_ca0106_pcm *epcm = runtime->private_data;
 945         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
 946         int channel = channel=epcm->channel_id;
 947
 948         if (!epcm->running)
 949                 return 0;
 950
 951         ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
 952         ptr2 = bytes_to_frames(runtime, ptr1);
 953         ptr=ptr2;
 954         if (ptr >= runtime->buffer_size)
 955                 ptr -= runtime->buffer_size;
 956         //printk("ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n", ptr1, ptr2, ptr, (int)runtime->buffer_size, (int)runtime->period_size, (int)runtime->frame_bits, (int)runtime->rate);
 957
 958         return ptr;
 959 }
 960
 961 /* operators */
 962 static struct snd_pcm_ops snd_ca0106_playback_front_ops = {
 963         .open =        snd_ca0106_pcm_open_playback_front,
 964         .close =       snd_ca0106_pcm_close_playback,
 965         .ioctl =       snd_pcm_lib_ioctl,
 966         .hw_params =   snd_ca0106_pcm_hw_params_playback,
 967         .hw_free =     snd_ca0106_pcm_hw_free_playback,
 968         .prepare =     snd_ca0106_pcm_prepare_playback,
 969         .trigger =     snd_ca0106_pcm_trigger_playback,
 970         .pointer =     snd_ca0106_pcm_pointer_playback,
 971 };
 972
 973 static struct snd_pcm_ops snd_ca0106_capture_0_ops = {
 974         .open =        snd_ca0106_pcm_open_0_capture,
 975         .close =       snd_ca0106_pcm_close_capture,
 976         .ioctl =       snd_pcm_lib_ioctl,
 977         .hw_params =   snd_ca0106_pcm_hw_params_capture,
 978         .hw_free =     snd_ca0106_pcm_hw_free_capture,
 979         .prepare =     snd_ca0106_pcm_prepare_capture,
 980         .trigger =     snd_ca0106_pcm_trigger_capture,
 981         .pointer =     snd_ca0106_pcm_pointer_capture,
 982 };
 983
 984 static struct snd_pcm_ops snd_ca0106_capture_1_ops = {
 985         .open =        snd_ca0106_pcm_open_1_capture,
 986         .close =       snd_ca0106_pcm_close_capture,
 987         .ioctl =       snd_pcm_lib_ioctl,
 988         .hw_params =   snd_ca0106_pcm_hw_params_capture,
 989         .hw_free =     snd_ca0106_pcm_hw_free_capture,
 990         .prepare =     snd_ca0106_pcm_prepare_capture,
 991         .trigger =     snd_ca0106_pcm_trigger_capture,
 992         .pointer =     snd_ca0106_pcm_pointer_capture,
 993 };
 994
 995 static struct snd_pcm_ops snd_ca0106_capture_2_ops = {
 996         .open =        snd_ca0106_pcm_open_2_capture,
 997         .close =       snd_ca0106_pcm_close_capture,
 998         .ioctl =       snd_pcm_lib_ioctl,
 999         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1000         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1001         .prepare =     snd_ca0106_pcm_prepare_capture,
1002         .trigger =     snd_ca0106_pcm_trigger_capture,
1003         .pointer =     snd_ca0106_pcm_pointer_capture,
1004 };
1005
1006 static struct snd_pcm_ops snd_ca0106_capture_3_ops = {
1007         .open =        snd_ca0106_pcm_open_3_capture,
1008         .close =       snd_ca0106_pcm_close_capture,
1009         .ioctl =       snd_pcm_lib_ioctl,
1010         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1011         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1012         .prepare =     snd_ca0106_pcm_prepare_capture,
1013         .trigger =     snd_ca0106_pcm_trigger_capture,
1014         .pointer =     snd_ca0106_pcm_pointer_capture,
1015 };
1016
1017 static struct snd_pcm_ops snd_ca0106_playback_center_lfe_ops = {
1018         .open =         snd_ca0106_pcm_open_playback_center_lfe,
1019         .close =        snd_ca0106_pcm_close_playback,
1020         .ioctl =        snd_pcm_lib_ioctl,
1021         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1022         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1023         .prepare =      snd_ca0106_pcm_prepare_playback,
1024         .trigger =      snd_ca0106_pcm_trigger_playback,
1025         .pointer =      snd_ca0106_pcm_pointer_playback,
1026 };
1027
1028 static struct snd_pcm_ops snd_ca0106_playback_unknown_ops = {
1029         .open =         snd_ca0106_pcm_open_playback_unknown,
1030         .close =        snd_ca0106_pcm_close_playback,
1031         .ioctl =        snd_pcm_lib_ioctl,
1032         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1033         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1034         .prepare =      snd_ca0106_pcm_prepare_playback,
1035         .trigger =      snd_ca0106_pcm_trigger_playback,
1036         .pointer =      snd_ca0106_pcm_pointer_playback,
1037 };
1038
1039 static struct snd_pcm_ops snd_ca0106_playback_rear_ops = {
1040         .open =         snd_ca0106_pcm_open_playback_rear,
1041         .close =        snd_ca0106_pcm_close_playback,
1042         .ioctl =        snd_pcm_lib_ioctl,
1043         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1044                 .hw_free =      snd_ca0106_pcm_hw_free_playback,
1045         .prepare =      snd_ca0106_pcm_prepare_playback,
1046         .trigger =      snd_ca0106_pcm_trigger_playback,
1047         .pointer =      snd_ca0106_pcm_pointer_playback,
1048 };
1049
1050
1051 static unsigned short snd_ca0106_ac97_read(struct snd_ac97 *ac97,
1052                                              unsigned short reg)
1053 {
1054         struct snd_ca0106 *emu = ac97->private_data;
1055         unsigned long flags;
1056         unsigned short val;
1057
1058         spin_lock_irqsave(&emu->emu_lock, flags);
1059         outb(reg, emu->port + AC97ADDRESS);
1060         val = inw(emu->port + AC97DATA);
1061         spin_unlock_irqrestore(&emu->emu_lock, flags);
1062         return val;
1063 }
1064
1065 static void snd_ca0106_ac97_write(struct snd_ac97 *ac97,
1066                                     unsigned short reg, unsigned short val)
1067 {
1068         struct snd_ca0106 *emu = ac97->private_data;
1069         unsigned long flags;
1070
1071         spin_lock_irqsave(&emu->emu_lock, flags);
1072         outb(reg, emu->port + AC97ADDRESS);
1073         outw(val, emu->port + AC97DATA);
1074         spin_unlock_irqrestore(&emu->emu_lock, flags);
1075 }
1076
1077 static int snd_ca0106_ac97(struct snd_ca0106 *chip)
1078 {
1079         struct snd_ac97_bus *pbus;
1080         struct snd_ac97_template ac97;
1081         int err;
1082         static struct snd_ac97_bus_ops ops = {
1083                 .write = snd_ca0106_ac97_write,
1084                 .read = snd_ca0106_ac97_read,
1085         };
1086
1087         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
1088                 return err;
1089         pbus->no_vra = 1; /* we don't need VRA */
1090
1091         memset(&ac97, 0, sizeof(ac97));
1092         ac97.private_data = chip;
1093         ac97.scaps = AC97_SCAP_NO_SPDIF;
1094         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1095 }
1096
1097 static int snd_ca0106_free(struct snd_ca0106 *chip)
1098 {
1099         if (chip->res_port != NULL) {    /* avoid access to already used hardware */
1100                 // disable interrupts
1101                 snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
1102                 outl(0, chip->port + INTE);
1103                 snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
1104                 udelay(1000);
1105                 // disable audio
1106                 //outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG);
1107                 outl(0, chip->port + HCFG);
1108                 /* FIXME: We need to stop and DMA transfers here.
1109                  *        But as I am not sure how yet, we cannot from the dma pages.
1110                  * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
1111                  */
1112         }
1113         // release the data
1114 #if 1
1115         if (chip->buffer.area)
1116                 snd_dma_free_pages(&chip->buffer);
1117 #endif
1118
1119         // release the i/o port
1120         release_and_free_resource(chip->res_port);
1121
1122         // release the irq
1123         if (chip->irq >= 0)
1124                 free_irq(chip->irq, chip);
1125         pci_disable_device(chip->pci);
1126         kfree(chip);
1127         return 0;
1128 }
1129
1130 static int snd_ca0106_dev_free(struct snd_device *device)
1131 {
1132         struct snd_ca0106 *chip = device->device_data;
1133         return snd_ca0106_free(chip);
1134 }
1135
1136 static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
1137 {
1138         unsigned int status;
1139
1140         struct snd_ca0106 *chip = dev_id;
1141         int i;
1142         int mask;
1143         unsigned int stat76;
1144         struct snd_ca0106_channel *pchannel;
1145
1146         status = inl(chip->port + IPR);
1147         if (! status)
1148                 return IRQ_NONE;
1149
1150         stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1151         //snd_printk("interrupt status = 0x%08x, stat76=0x%08x\n", status, stat76);
1152         //snd_printk("ptr=0x%08x\n",snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1153         mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1154         for(i = 0; i < 4; i++) {
1155                 pchannel = &(chip->playback_channels[i]);
1156                 if (stat76 & mask) {
1157 /* FIXME: Select the correct substream for period elapsed */
1158                         if(pchannel->use) {
1159                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1160                                 //printk(KERN_INFO "interrupt [%d] used\n", i);
1161                         }
1162                 }
1163                 //printk(KERN_INFO "channel=%p\n",pchannel);
1164                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1165                 mask <<= 1;
1166         }
1167         mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1168         for(i = 0; i < 4; i++) {
1169                 pchannel = &(chip->capture_channels[i]);
1170                 if (stat76 & mask) {
1171 /* FIXME: Select the correct substream for period elapsed */
1172                         if(pchannel->use) {
1173                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1174                                 //printk(KERN_INFO "interrupt [%d] used\n", i);
1175                         }
1176                 }
1177                 //printk(KERN_INFO "channel=%p\n",pchannel);
1178                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1179                 mask <<= 1;
1180         }
1181
1182         snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1183
1184         if (chip->midi.dev_id &&
1185             (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1186                 if (chip->midi.interrupt)
1187                         chip->midi.interrupt(&chip->midi, status);
1188                 else
1189                         chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1190         }
1191
1192         // acknowledge the interrupt if necessary
1193         outl(status, chip->port+IPR);
1194
1195         return IRQ_HANDLED;
1196 }
1197
1198 static int __devinit snd_ca0106_pcm(struct snd_ca0106 *emu, int device, struct snd_pcm **rpcm)
1199 {
1200         struct snd_pcm *pcm;
1201         struct snd_pcm_substream *substream;
1202         int err;
1203
1204         if (rpcm)
1205                 *rpcm = NULL;
1206         if ((err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm)) < 0)
1207                 return err;
1208
1209         pcm->private_data = emu;
1210
1211         switch (device) {
1212         case 0:
1213           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1214           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1215           break;
1216         case 1:
1217           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1218           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1219           break;
1220         case 2:
1221           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1222           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1223           break;
1224         case 3:
1225           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1226           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1227           break;
1228         }
1229
1230         pcm->info_flags = 0;
1231         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1232         strcpy(pcm->name, "CA0106");
1233         emu->pcm = pcm;
1234
1235         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
1236             substream;
1237             substream = substream->next) {
1238                 if ((err = snd_pcm_lib_preallocate_pages(substream,
1239                                                          SNDRV_DMA_TYPE_DEV,
1240                                                          snd_dma_pci_data(emu->pci),
1241                                                          64*1024, 64*1024)) < 0) /* FIXME: 32*1024 for sound buffer, between 32and64 for Periods table. */
1242                         return err;
1243         }
1244
1245         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
1246               substream;
1247               substream = substream->next) {
1248                 if ((err = snd_pcm_lib_preallocate_pages(substream,
1249                                                    SNDRV_DMA_TYPE_DEV,
1250                                                    snd_dma_pci_data(emu->pci),
1251                                                    64*1024, 64*1024)) < 0)
1252                         return err;
1253         }
1254
1255         if (rpcm)
1256                 *rpcm = pcm;
1257
1258         return 0;
1259 }
1260
1261 #define SPI_REG(reg, value)     (((reg) << SPI_REG_SHIFT) | (value))
1262 static unsigned int spi_dac_init[] = {
1263         SPI_REG(SPI_LDA1_REG,   SPI_DA_BIT_0dB), /* 0dB dig. attenuation */
1264         SPI_REG(SPI_RDA1_REG,   SPI_DA_BIT_0dB),
1265         SPI_REG(SPI_PL_REG,     SPI_PL_BIT_L_L | SPI_PL_BIT_R_R | SPI_IZD_BIT),
1266         SPI_REG(SPI_FMT_REG,    SPI_FMT_BIT_I2S | SPI_IWL_BIT_24),
1267         SPI_REG(SPI_LDA2_REG,   SPI_DA_BIT_0dB),
1268         SPI_REG(SPI_RDA2_REG,   SPI_DA_BIT_0dB),
1269         SPI_REG(SPI_LDA3_REG,   SPI_DA_BIT_0dB),
1270         SPI_REG(SPI_RDA3_REG,   SPI_DA_BIT_0dB),
1271         SPI_REG(SPI_MASTDA_REG, SPI_DA_BIT_0dB),
1272         SPI_REG(9,              0x00),
1273         SPI_REG(SPI_MS_REG,     SPI_DACD0_BIT | SPI_DACD1_BIT | SPI_DACD2_BIT),
1274         SPI_REG(12,             0x00),
1275         SPI_REG(SPI_LDA4_REG,   SPI_DA_BIT_0dB),
1276         SPI_REG(SPI_RDA4_REG,   SPI_DA_BIT_0dB | SPI_DA_BIT_UPDATE),
1277         SPI_REG(SPI_DACD4_REG,  0x00),
1278 };
1279
1280 static unsigned int i2c_adc_init[][2] = {
1281         { 0x17, 0x00 }, /* Reset */
1282         { 0x07, 0x00 }, /* Timeout */
1283         { 0x0b, 0x22 },  /* Interface control */
1284         { 0x0c, 0x22 },  /* Master mode control */
1285         { 0x0d, 0x08 },  /* Powerdown control */
1286         { 0x0e, 0xcf },  /* Attenuation Left  0x01 = -103dB, 0xff = 24dB */
1287         { 0x0f, 0xcf },  /* Attenuation Right 0.5dB steps */
1288         { 0x10, 0x7b },  /* ALC Control 1 */
1289         { 0x11, 0x00 },  /* ALC Control 2 */
1290         { 0x12, 0x32 },  /* ALC Control 3 */
1291         { 0x13, 0x00 },  /* Noise gate control */
1292         { 0x14, 0xa6 },  /* Limiter control */
1293         { 0x15, ADC_MUX_LINEIN },  /* ADC Mixer control */
1294 };
1295
1296 static int __devinit snd_ca0106_create(int dev, struct snd_card *card,
1297                                          struct pci_dev *pci,
1298                                          struct snd_ca0106 **rchip)
1299 {
1300         struct snd_ca0106 *chip;
1301         struct snd_ca0106_details *c;
1302         int err;
1303         int ch;
1304         static struct snd_device_ops ops = {
1305                 .dev_free = snd_ca0106_dev_free,
1306         };
1307
1308         *rchip = NULL;
1309
1310         if ((err = pci_enable_device(pci)) < 0)
1311                 return err;
1312         if (pci_set_dma_mask(pci, DMA_32BIT_MASK) < 0 ||
1313             pci_set_consistent_dma_mask(pci, DMA_32BIT_MASK) < 0) {
1314                 printk(KERN_ERR "error to set 32bit mask DMA\n");
1315                 pci_disable_device(pci);
1316                 return -ENXIO;
1317         }
1318
1319         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1320         if (chip == NULL) {
1321                 pci_disable_device(pci);
1322                 return -ENOMEM;
1323         }
1324
1325         chip->card = card;
1326         chip->pci = pci;
1327         chip->irq = -1;
1328
1329         spin_lock_init(&chip->emu_lock);
1330
1331         chip->port = pci_resource_start(pci, 0);
1332         if ((chip->res_port = request_region(chip->port, 0x20,
1333                                              "snd_ca0106")) == NULL) {
1334                 snd_ca0106_free(chip);
1335                 printk(KERN_ERR "cannot allocate the port\n");
1336                 return -EBUSY;
1337         }
1338
1339         if (request_irq(pci->irq, snd_ca0106_interrupt,
1340                         IRQF_SHARED, "snd_ca0106", chip)) {
1341                 snd_ca0106_free(chip);
1342                 printk(KERN_ERR "cannot grab irq\n");
1343                 return -EBUSY;
1344         }
1345         chip->irq = pci->irq;
1346
1347         /* This stores the periods table. */
1348         if(snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci), 1024, &chip->buffer) < 0) {
1349                 snd_ca0106_free(chip);
1350                 return -ENOMEM;
1351         }
1352
1353         pci_set_master(pci);
1354         /* read serial */
1355         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1356         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1357 #if 1
1358         printk(KERN_INFO "snd-ca0106: Model %04x Rev %08x Serial %08x\n", chip->model,
1359                pci->revision, chip->serial);
1360 #endif
1361         strcpy(card->driver, "CA0106");
1362         strcpy(card->shortname, "CA0106");
1363
1364         for (c = ca0106_chip_details; c->serial; c++) {
1365                 if (subsystem[dev]) {
1366                         if (c->serial == subsystem[dev])
1367                                 break;
1368                 } else if (c->serial == chip->serial)
1369                         break;
1370         }
1371         chip->details = c;
1372         if (subsystem[dev]) {
1373                 printk(KERN_INFO "snd-ca0106: Sound card name=%s, subsystem=0x%x. Forced to subsystem=0x%x\n",
1374                         c->name, chip->serial, subsystem[dev]);
1375         }
1376
1377         sprintf(card->longname, "%s at 0x%lx irq %i",
1378                 c->name, chip->port, chip->irq);
1379
1380         outl(0, chip->port + INTE);
1381
1382         /*
1383          *  Init to 0x02109204 :
1384          *  Clock accuracy    = 0     (1000ppm)
1385          *  Sample Rate       = 2     (48kHz)
1386          *  Audio Channel     = 1     (Left of 2)
1387          *  Source Number     = 0     (Unspecified)
1388          *  Generation Status = 1     (Original for Cat Code 12)
1389          *  Cat Code          = 12    (Digital Signal Mixer)
1390          *  Mode              = 0     (Mode 0)
1391          *  Emphasis          = 0     (None)
1392          *  CP                = 1     (Copyright unasserted)
1393          *  AN                = 0     (Audio data)
1394          *  P                 = 0     (Consumer)
1395          */
1396         snd_ca0106_ptr_write(chip, SPCS0, 0,
1397                                 chip->spdif_bits[0] =
1398                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1399                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1400                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1401                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1402         /* Only SPCS1 has been tested */
1403         snd_ca0106_ptr_write(chip, SPCS1, 0,
1404                                 chip->spdif_bits[1] =
1405                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1406                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1407                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1408                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1409         snd_ca0106_ptr_write(chip, SPCS2, 0,
1410                                 chip->spdif_bits[2] =
1411                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1412                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1413                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1414                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1415         snd_ca0106_ptr_write(chip, SPCS3, 0,
1416                                 chip->spdif_bits[3] =
1417                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1418                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1419                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1420                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1421
1422         snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1423         snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1424
1425         /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1426         outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
1427         outw(0x8000, chip->port + AC97DATA);
1428 #if 0
1429         snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1430         snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1431         snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1432         snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1433 #endif
1434
1435         //snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); /* OSS drivers set this. */
1436         /* Analog or Digital output */
1437         snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1438         snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000); /* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers. Use 0x000f0000 for surround71 */
1439         chip->spdif_enable = 0; /* Set digital SPDIF output off */
1440         //snd_ca0106_ptr_write(chip, 0x45, 0, 0); /* Analogue out */
1441         //snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00); /* Digital out */
1442
1443         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000); /* goes to 0x40c80000 when doing SPDIF IN/OUT */
1444         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff); /* (Mute) CAPTURE feedback into PLAYBACK volume. Only lower 16 bits matter. */
1445         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000); /* SPDIF IN Volume */
1446         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000); /* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1447         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1448         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1449         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1450         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1451         for(ch = 0; ch < 4; ch++) {
1452                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030); /* Only high 16 bits matter */
1453                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1454                 //snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040); /* Mute */
1455                 //snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040); /* Mute */
1456                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff); /* Mute */
1457                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff); /* Mute */
1458         }
1459         if (chip->details->i2c_adc == 1) {
1460                 /* Select MIC, Line in, TAD in, AUX in */
1461                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1462                 /* Default to CAPTURE_SOURCE to i2s in */
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                 chip->capture_source = 4;
1469         } else {
1470                 /* Select MIC, Line in, TAD in, AUX in */
1471                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1472                 /* Default to Set CAPTURE_SOURCE to i2s in */
1473                 chip->capture_source = 3;
1474         }
1475
1476         if (chip->details->gpio_type == 2) { /* The SB0438 use GPIO differently. */
1477                 /* FIXME: Still need to find out what the other GPIO bits do. E.g. For digital spdif out. */
1478                 outl(0x0, chip->port+GPIO);
1479                 //outl(0x00f0e000, chip->port+GPIO); /* Analog */
1480                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1481         } else if (chip->details->gpio_type == 1) { /* The SB0410 and SB0413 use GPIO differently. */
1482                 /* FIXME: Still need to find out what the other GPIO bits do. E.g. For digital spdif out. */
1483                 outl(0x0, chip->port+GPIO);
1484                 //outl(0x00f0e000, chip->port+GPIO); /* Analog */
1485                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1486         } else {
1487                 outl(0x0, chip->port+GPIO);
1488                 outl(0x005f03a3, chip->port+GPIO); /* Analog */
1489                 //outl(0x005f02a2, chip->port+GPIO);   /* SPDIF */
1490         }
1491         snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1492
1493         //outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG);
1494         //outl(0x00001409, chip->port+HCFG); /* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1495         //outl(0x00000009, chip->port+HCFG);
1496         outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG); /* AC97 2.0, Enable outputs. */
1497
1498         if (chip->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
1499                 int size, n;
1500
1501                 size = ARRAY_SIZE(i2c_adc_init);
1502                 //snd_printk("I2C:array size=0x%x\n", size);
1503                 for (n=0; n < size; n++) {
1504                         snd_ca0106_i2c_write(chip, i2c_adc_init[n][0], i2c_adc_init[n][1]);
1505                 }
1506                 for (n=0; n < 4; n++) {
1507                         chip->i2c_capture_volume[n][0]= 0xcf;
1508                         chip->i2c_capture_volume[n][1]= 0xcf;
1509                 }
1510                 chip->i2c_capture_source=2; /* Line in */
1511                 //snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); /* Enable Line-in capture. MIC in currently untested. */
1512         }
1513         if (chip->details->spi_dac == 1) { /* The SB0570 use SPI to control DAC. */
1514                 int size, n;
1515
1516                 size = ARRAY_SIZE(spi_dac_init);
1517                 for (n = 0; n < size; n++) {
1518                         int reg = spi_dac_init[n] >> SPI_REG_SHIFT;
1519
1520                         snd_ca0106_spi_write(chip, spi_dac_init[n]);
1521                         if (reg < ARRAY_SIZE(chip->spi_dac_reg))
1522                                 chip->spi_dac_reg[reg] = spi_dac_init[n];
1523                 }
1524         }
1525
1526         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
1527                                   chip, &ops)) < 0) {
1528                 snd_ca0106_free(chip);
1529                 return err;
1530         }
1531         *rchip = chip;
1532         return 0;
1533 }
1534
1535
1536 static void ca0106_midi_interrupt_enable(struct snd_ca_midi *midi, int intr)
1537 {
1538         snd_ca0106_intr_enable((struct snd_ca0106 *)(midi->dev_id), intr);
1539 }
1540
1541 static void ca0106_midi_interrupt_disable(struct snd_ca_midi *midi, int intr)
1542 {
1543         snd_ca0106_intr_disable((struct snd_ca0106 *)(midi->dev_id), intr);
1544 }
1545
1546 static unsigned char ca0106_midi_read(struct snd_ca_midi *midi, int idx)
1547 {
1548         return (unsigned char)snd_ca0106_ptr_read((struct snd_ca0106 *)(midi->dev_id),
1549                                                   midi->port + idx, 0);
1550 }
1551
1552 static void ca0106_midi_write(struct snd_ca_midi *midi, int data, int idx)
1553 {
1554         snd_ca0106_ptr_write((struct snd_ca0106 *)(midi->dev_id), midi->port + idx, 0, data);
1555 }
1556
1557 static struct snd_card *ca0106_dev_id_card(void *dev_id)
1558 {
1559         return ((struct snd_ca0106 *)dev_id)->card;
1560 }
1561
1562 static int ca0106_dev_id_port(void *dev_id)
1563 {
1564         return ((struct snd_ca0106 *)dev_id)->port;
1565 }
1566
1567 static int __devinit snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
1568 {
1569         struct snd_ca_midi *midi;
1570         char *name;
1571         int err;
1572
1573         if (channel == CA0106_MIDI_CHAN_B) {
1574                 name = "CA0106 MPU-401 (UART) B";
1575                 midi =  &chip->midi2;
1576                 midi->tx_enable = INTE_MIDI_TX_B;
1577                 midi->rx_enable = INTE_MIDI_RX_B;
1578                 midi->ipr_tx = IPR_MIDI_TX_B;
1579                 midi->ipr_rx = IPR_MIDI_RX_B;
1580                 midi->port = MIDI_UART_B_DATA;
1581         } else {
1582                 name = "CA0106 MPU-401 (UART)";
1583                 midi =  &chip->midi;
1584                 midi->tx_enable = INTE_MIDI_TX_A;
1585                 midi->rx_enable = INTE_MIDI_TX_B;
1586                 midi->ipr_tx = IPR_MIDI_TX_A;
1587                 midi->ipr_rx = IPR_MIDI_RX_A;
1588                 midi->port = MIDI_UART_A_DATA;
1589         }
1590
1591         midi->reset = CA0106_MPU401_RESET;
1592         midi->enter_uart = CA0106_MPU401_ENTER_UART;
1593         midi->ack = CA0106_MPU401_ACK;
1594
1595         midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1596         midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1597
1598         midi->channel = channel;
1599
1600         midi->interrupt_enable = ca0106_midi_interrupt_enable;
1601         midi->interrupt_disable = ca0106_midi_interrupt_disable;
1602
1603         midi->read = ca0106_midi_read;
1604         midi->write = ca0106_midi_write;
1605
1606         midi->get_dev_id_card = ca0106_dev_id_card;
1607         midi->get_dev_id_port = ca0106_dev_id_port;
1608
1609         midi->dev_id = chip;
1610
1611         if ((err = ca_midi_init(chip, midi, 0, name)) < 0)
1612                 return err;
1613
1614         return 0;
1615 }
1616
1617
1618 static int __devinit snd_ca0106_probe(struct pci_dev *pci,
1619                                         const struct pci_device_id *pci_id)
1620 {
1621         static int dev;
1622         struct snd_card *card;
1623         struct snd_ca0106 *chip;
1624         int err;
1625
1626         if (dev >= SNDRV_CARDS)
1627                 return -ENODEV;
1628         if (!enable[dev]) {
1629                 dev++;
1630                 return -ENOENT;
1631         }
1632
1633         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
1634         if (card == NULL)
1635                 return -ENOMEM;
1636
1637         if ((err = snd_ca0106_create(dev, card, pci, &chip)) < 0) {
1638                 snd_card_free(card);
1639                 return err;
1640         }
1641
1642         if ((err = snd_ca0106_pcm(chip, 0, NULL)) < 0) {
1643                 snd_card_free(card);
1644                 return err;
1645         }
1646         if ((err = snd_ca0106_pcm(chip, 1, NULL)) < 0) {
1647                 snd_card_free(card);
1648                 return err;
1649         }
1650         if ((err = snd_ca0106_pcm(chip, 2, NULL)) < 0) {
1651                 snd_card_free(card);
1652                 return err;
1653         }
1654         if ((err = snd_ca0106_pcm(chip, 3, NULL)) < 0) {
1655                 snd_card_free(card);
1656                 return err;
1657         }
1658         if (chip->details->ac97 == 1) { /* The SB0410 and SB0413 do not have an AC97 chip. */
1659                 if ((err = snd_ca0106_ac97(chip)) < 0) {
1660                         snd_card_free(card);
1661                         return err;
1662                 }
1663         }
1664         if ((err = snd_ca0106_mixer(chip)) < 0) {
1665                 snd_card_free(card);
1666                 return err;
1667         }
1668
1669         snd_printdd("ca0106: probe for MIDI channel A ...");
1670         if ((err = snd_ca0106_midi(chip,CA0106_MIDI_CHAN_A)) < 0) {
1671                 snd_card_free(card);
1672                 snd_printdd(" failed, err=0x%x\n",err);
1673                 return err;
1674         }
1675         snd_printdd(" done.\n");
1676
1677 #ifdef CONFIG_PROC_FS
1678         snd_ca0106_proc_init(chip);
1679 #endif
1680
1681         snd_card_set_dev(card, &pci->dev);
1682
1683         if ((err = snd_card_register(card)) < 0) {
1684                 snd_card_free(card);
1685                 return err;
1686         }
1687
1688         pci_set_drvdata(pci, card);
1689         dev++;
1690         return 0;
1691 }
1692
1693 static void __devexit snd_ca0106_remove(struct pci_dev *pci)
1694 {
1695         snd_card_free(pci_get_drvdata(pci));
1696         pci_set_drvdata(pci, NULL);
1697 }
1698
1699 // PCI IDs
1700 static struct pci_device_id snd_ca0106_ids[] = {
1701         { 0x1102, 0x0007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },    /* Audigy LS or Live 24bit */
1702         { 0, }
1703 };
1704 MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1705
1706 // pci_driver definition
1707 static struct pci_driver driver = {
1708         .name = "CA0106",
1709         .id_table = snd_ca0106_ids,
1710         .probe = snd_ca0106_probe,
1711         .remove = __devexit_p(snd_ca0106_remove),
1712 };
1713
1714 // initialization of the module
1715 static int __init alsa_card_ca0106_init(void)
1716 {
1717         return pci_register_driver(&driver);
1718 }
1719
1720 // clean up the module
1721 static void __exit alsa_card_ca0106_exit(void)
1722 {
1723         pci_unregister_driver(&driver);
1724 }
1725
1726 module_init(alsa_card_ca0106_init)
1727 module_exit(alsa_card_ca0106_exit)