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 <linux/delay.h>
 139 #include <linux/init.h>
 140 #include <linux/interrupt.h>
 141 #include <linux/pci.h>
 142 #include <linux/slab.h>
 143 #include <linux/moduleparam.h>
 144 #include <linux/dma-mapping.h>
 145 #include <sound/core.h>
 146 #include <sound/initval.h>
 147 #include <sound/pcm.h>
 148 #include <sound/ac97_codec.h>
 149 #include <sound/info.h>
 150
 151 MODULE_AUTHOR("James Courtier-Dutton <James@superbug.demon.co.uk>");
 152 MODULE_DESCRIPTION("CA0106");
 153 MODULE_LICENSE("GPL");
 154 MODULE_SUPPORTED_DEVICE("{{Creative,SB CA0106 chip}}");
 155
 156 // module parameters (see "Module Parameters")
 157 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
 158 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
 159 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
 160 static uint subsystem[SNDRV_CARDS]; /* Force card subsystem model */
 161
 162 module_param_array(index, int, NULL, 0444);
 163 MODULE_PARM_DESC(index, "Index value for the CA0106 soundcard.");
 164 module_param_array(id, charp, NULL, 0444);
 165 MODULE_PARM_DESC(id, "ID string for the CA0106 soundcard.");
 166 module_param_array(enable, bool, NULL, 0444);
 167 MODULE_PARM_DESC(enable, "Enable the CA0106 soundcard.");
 168 module_param_array(subsystem, uint, NULL, 0444);
 169 MODULE_PARM_DESC(subsystem, "Force card subsystem model.");
 170
 171 #include "ca0106.h"
 172
 173 static struct snd_ca0106_details ca0106_chip_details[] = {
 174          /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
 175          /* It is really just a normal SB Live 24bit. */
 176          /* Tested:
 177           * See ALSA bug#3251
 178           */
 179          { .serial = 0x10131102,
 180            .name   = "X-Fi Extreme Audio [SBxxxx]",
 181            .gpio_type = 1,
 182            .i2c_adc = 1 } ,
 183          /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
 184          /* It is really just a normal SB Live 24bit. */
 185          /*
 186           * CTRL:CA0111-WTLF
 187           * ADC: WM8775SEDS
 188           * DAC: CS4382-KQZ
 189           */
 190          /* Tested:
 191           * Playback on front, rear, center/lfe speakers
 192           * Capture from Mic in.
 193           * Not-Tested:
 194           * Capture from Line in.
 195           * Playback to digital out.
 196           */
 197          { .serial = 0x10121102,
 198            .name   = "X-Fi Extreme Audio [SB0790]",
 199            .gpio_type = 1,
 200            .i2c_adc = 1 } ,
 201          /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
 202          /* AudigyLS[SB0310] */
 203          { .serial = 0x10021102,
 204            .name   = "AudigyLS [SB0310]",
 205            .ac97   = 1 } ,
 206          /* Unknown AudigyLS that also says SB0310 on it */
 207          { .serial = 0x10051102,
 208            .name   = "AudigyLS [SB0310b]",
 209            .ac97   = 1 } ,
 210          /* New Sound Blaster Live! 7.1 24bit. This does not have an AC97. 53SB041000001 */
 211          { .serial = 0x10061102,
 212            .name   = "Live! 7.1 24bit [SB0410]",
 213            .gpio_type = 1,
 214            .i2c_adc = 1 } ,
 215          /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
 216          { .serial = 0x10071102,
 217            .name   = "Live! 7.1 24bit [SB0413]",
 218            .gpio_type = 1,
 219            .i2c_adc = 1 } ,
 220          /* New Audigy SE. Has a different DAC. */
 221          /* SB0570:
 222           * CTRL:CA0106-DAT
 223           * ADC: WM8775EDS
 224           * DAC: WM8768GEDS
 225           */
 226          { .serial = 0x100a1102,
 227            .name   = "Audigy SE [SB0570]",
 228            .gpio_type = 1,
 229            .i2c_adc = 1,
 230            .spi_dac = 1 } ,
 231          /* New Audigy LS. Has a different DAC. */
 232          /* SB0570:
 233           * CTRL:CA0106-DAT
 234           * ADC: WM8775EDS
 235           * DAC: WM8768GEDS
 236           */
 237          { .serial = 0x10111102,
 238            .name   = "Audigy SE OEM [SB0570a]",
 239            .gpio_type = 1,
 240            .i2c_adc = 1,
 241            .spi_dac = 1 } ,
 242          /* MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97 */
 243          /* SB0438
 244           * CTRL:CA0106-DAT
 245           * ADC: WM8775SEDS
 246           * DAC: CS4382-KQZ
 247           */
 248          { .serial = 0x10091462,
 249            .name   = "MSI K8N Diamond MB [SB0438]",
 250            .gpio_type = 2,
 251            .i2c_adc = 1 } ,
 252          /* Shuttle XPC SD31P which has an onboard Creative Labs
 253           * Sound Blaster Live! 24-bit EAX
 254           * high-definition 7.1 audio processor".
 255           * Added using info from andrewvegan in alsa bug #1298
 256           */
 257          { .serial = 0x30381297,
 258            .name   = "Shuttle XPC SD31P [SD31P]",
 259            .gpio_type = 1,
 260            .i2c_adc = 1 } ,
 261         /* Shuttle XPC SD11G5 which has an onboard Creative Labs
 262          * Sound Blaster Live! 24-bit EAX
 263          * high-definition 7.1 audio processor".
 264          * Fixes ALSA bug#1600
 265          */
 266         { .serial = 0x30411297,
 267           .name = "Shuttle XPC SD11G5 [SD11G5]",
 268           .gpio_type = 1,
 269           .i2c_adc = 1 } ,
 270          { .serial = 0,
 271            .name   = "AudigyLS [Unknown]" }
 272 };
 273
 274 /* hardware definition */
 275 static struct snd_pcm_hardware snd_ca0106_playback_hw = {
 276         .info =                 SNDRV_PCM_INFO_MMAP |
 277                                 SNDRV_PCM_INFO_INTERLEAVED |
 278                                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 279                                 SNDRV_PCM_INFO_MMAP_VALID |
 280                                 SNDRV_PCM_INFO_SYNC_START,
 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 intr_enable;
 439
 440         spin_lock_irqsave(&emu->emu_lock, flags);
 441         intr_enable = inl(emu->port + INTE) | intrenb;
 442         outl(intr_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 intr_enable;
 450
 451         spin_lock_irqsave(&emu->emu_lock, flags);
 452         intr_enable = inl(emu->port + INTE) & ~intrenb;
 453         outl(intr_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         snd_pcm_set_sync(substream);
 511
 512         if (chip->details->spi_dac && channel_id != PCM_FRONT_CHANNEL) {
 513                 const int reg = spi_dacd_reg[channel_id];
 514
 515                 /* Power up dac */
 516                 chip->spi_dac_reg[reg] &= ~spi_dacd_bit[channel_id];
 517                 err = snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
 518                 if (err < 0)
 519                         return err;
 520         }
 521         return 0;
 522 }
 523
 524 /* close callback */
 525 static int snd_ca0106_pcm_close_playback(struct snd_pcm_substream *substream)
 526 {
 527         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 528         struct snd_pcm_runtime *runtime = substream->runtime;
 529         struct snd_ca0106_pcm *epcm = runtime->private_data;
 530         chip->playback_channels[epcm->channel_id].use = 0;
 531
 532         if (chip->details->spi_dac && epcm->channel_id != PCM_FRONT_CHANNEL) {
 533                 const int reg = spi_dacd_reg[epcm->channel_id];
 534
 535                 /* Power down DAC */
 536                 chip->spi_dac_reg[reg] |= spi_dacd_bit[epcm->channel_id];
 537                 snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
 538         }
 539         /* FIXME: maybe zero others */
 540         return 0;
 541 }
 542
 543 static int snd_ca0106_pcm_open_playback_front(struct snd_pcm_substream *substream)
 544 {
 545         return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
 546 }
 547
 548 static int snd_ca0106_pcm_open_playback_center_lfe(struct snd_pcm_substream *substream)
 549 {
 550         return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
 551 }
 552
 553 static int snd_ca0106_pcm_open_playback_unknown(struct snd_pcm_substream *substream)
 554 {
 555         return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
 556 }
 557
 558 static int snd_ca0106_pcm_open_playback_rear(struct snd_pcm_substream *substream)
 559 {
 560         return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
 561 }
 562
 563 /* open_capture callback */
 564 static int snd_ca0106_pcm_open_capture_channel(struct snd_pcm_substream *substream,
 565                                                int channel_id)
 566 {
 567         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 568         struct snd_ca0106_channel *channel = &(chip->capture_channels[channel_id]);
 569         struct snd_ca0106_pcm *epcm;
 570         struct snd_pcm_runtime *runtime = substream->runtime;
 571         int err;
 572
 573         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 574         if (epcm == NULL) {
 575                 snd_printk(KERN_ERR "open_capture_channel: failed epcm alloc\n");
 576                 return -ENOMEM;
 577         }
 578         epcm->emu = chip;
 579         epcm->substream = substream;
 580         epcm->channel_id=channel_id;
 581
 582         runtime->private_data = epcm;
 583         runtime->private_free = snd_ca0106_pcm_free_substream;
 584
 585         runtime->hw = snd_ca0106_capture_hw;
 586
 587         channel->emu = chip;
 588         channel->number = channel_id;
 589
 590         channel->use = 1;
 591         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
 592         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 593         channel->epcm = epcm;
 594         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 595                 return err;
 596         //snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
 597         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 598                 return err;
 599         return 0;
 600 }
 601
 602 /* close callback */
 603 static int snd_ca0106_pcm_close_capture(struct snd_pcm_substream *substream)
 604 {
 605         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 606         struct snd_pcm_runtime *runtime = substream->runtime;
 607         struct snd_ca0106_pcm *epcm = runtime->private_data;
 608         chip->capture_channels[epcm->channel_id].use = 0;
 609         /* FIXME: maybe zero others */
 610         return 0;
 611 }
 612
 613 static int snd_ca0106_pcm_open_0_capture(struct snd_pcm_substream *substream)
 614 {
 615         return snd_ca0106_pcm_open_capture_channel(substream, 0);
 616 }
 617
 618 static int snd_ca0106_pcm_open_1_capture(struct snd_pcm_substream *substream)
 619 {
 620         return snd_ca0106_pcm_open_capture_channel(substream, 1);
 621 }
 622
 623 static int snd_ca0106_pcm_open_2_capture(struct snd_pcm_substream *substream)
 624 {
 625         return snd_ca0106_pcm_open_capture_channel(substream, 2);
 626 }
 627
 628 static int snd_ca0106_pcm_open_3_capture(struct snd_pcm_substream *substream)
 629 {
 630         return snd_ca0106_pcm_open_capture_channel(substream, 3);
 631 }
 632
 633 /* hw_params callback */
 634 static int snd_ca0106_pcm_hw_params_playback(struct snd_pcm_substream *substream,
 635                                       struct snd_pcm_hw_params *hw_params)
 636 {
 637         return snd_pcm_lib_malloc_pages(substream,
 638                                         params_buffer_bytes(hw_params));
 639 }
 640
 641 /* hw_free callback */
 642 static int snd_ca0106_pcm_hw_free_playback(struct snd_pcm_substream *substream)
 643 {
 644         return snd_pcm_lib_free_pages(substream);
 645 }
 646
 647 /* hw_params callback */
 648 static int snd_ca0106_pcm_hw_params_capture(struct snd_pcm_substream *substream,
 649                                       struct snd_pcm_hw_params *hw_params)
 650 {
 651         return snd_pcm_lib_malloc_pages(substream,
 652                                         params_buffer_bytes(hw_params));
 653 }
 654
 655 /* hw_free callback */
 656 static int snd_ca0106_pcm_hw_free_capture(struct snd_pcm_substream *substream)
 657 {
 658         return snd_pcm_lib_free_pages(substream);
 659 }
 660
 661 /* prepare playback callback */
 662 static int snd_ca0106_pcm_prepare_playback(struct snd_pcm_substream *substream)
 663 {
 664         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 665         struct snd_pcm_runtime *runtime = substream->runtime;
 666         struct snd_ca0106_pcm *epcm = runtime->private_data;
 667         int channel = epcm->channel_id;
 668         u32 *table_base = (u32 *)(emu->buffer.area+(8*16*channel));
 669         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
 670         u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
 671         u32 hcfg_set = 0x00000000;
 672         u32 hcfg;
 673         u32 reg40_mask = 0x30000 << (channel<<1);
 674         u32 reg40_set = 0;
 675         u32 reg40;
 676         /* FIXME: Depending on mixer selection of SPDIF out or not, select the spdif rate or the DAC rate. */
 677         u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
 678         u32 reg71_set = 0;
 679         u32 reg71;
 680         int i;
 681
 682         //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));
 683         //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
 684         //snd_printk("dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 685         /* Rate can be set per channel. */
 686         /* reg40 control host to fifo */
 687         /* reg71 controls DAC rate. */
 688         switch (runtime->rate) {
 689         case 44100:
 690                 reg40_set = 0x10000 << (channel<<1);
 691                 reg71_set = 0x01010000;
 692                 break;
 693         case 48000:
 694                 reg40_set = 0;
 695                 reg71_set = 0;
 696                 break;
 697         case 96000:
 698                 reg40_set = 0x20000 << (channel<<1);
 699                 reg71_set = 0x02020000;
 700                 break;
 701         case 192000:
 702                 reg40_set = 0x30000 << (channel<<1);
 703                 reg71_set = 0x03030000;
 704                 break;
 705         default:
 706                 reg40_set = 0;
 707                 reg71_set = 0;
 708                 break;
 709         }
 710         /* Format is a global setting */
 711         /* FIXME: Only let the first channel accessed set this. */
 712         switch (runtime->format) {
 713         case SNDRV_PCM_FORMAT_S16_LE:
 714                 hcfg_set = 0;
 715                 break;
 716         case SNDRV_PCM_FORMAT_S32_LE:
 717                 hcfg_set = HCFG_PLAYBACK_S32_LE;
 718                 break;
 719         default:
 720                 hcfg_set = 0;
 721                 break;
 722         }
 723         hcfg = inl(emu->port + HCFG) ;
 724         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 725         outl(hcfg, emu->port + HCFG);
 726         reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
 727         reg40 = (reg40 & ~reg40_mask) | reg40_set;
 728         snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
 729         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 730         reg71 = (reg71 & ~reg71_mask) | reg71_set;
 731         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 732
 733         /* FIXME: Check emu->buffer.size before actually writing to it. */
 734         for(i=0; i < runtime->periods; i++) {
 735                 table_base[i*2] = runtime->dma_addr + (i * period_size_bytes);
 736                 table_base[i*2+1] = period_size_bytes << 16;
 737         }
 738
 739         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
 740         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
 741         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
 742         snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
 743         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
 744         /* FIXME  test what 0 bytes does. */
 745         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
 746         snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
 747         snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
 748         snd_ca0106_ptr_write(emu, 0x08, channel, 0);
 749         snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
 750 #if 0
 751         snd_ca0106_ptr_write(emu, SPCS0, 0,
 752                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
 753                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
 754                                SPCS_GENERATIONSTATUS | 0x00001200 |
 755                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
 756         }
 757 #endif
 758
 759         return 0;
 760 }
 761
 762 /* prepare capture callback */
 763 static int snd_ca0106_pcm_prepare_capture(struct snd_pcm_substream *substream)
 764 {
 765         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 766         struct snd_pcm_runtime *runtime = substream->runtime;
 767         struct snd_ca0106_pcm *epcm = runtime->private_data;
 768         int channel = epcm->channel_id;
 769         u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
 770         u32 hcfg_set = 0x00000000;
 771         u32 hcfg;
 772         u32 over_sampling=0x2;
 773         u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
 774         u32 reg71_set = 0;
 775         u32 reg71;
 776
 777         //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));
 778         //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
 779         //snd_printk("dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 780         /* reg71 controls ADC rate. */
 781         switch (runtime->rate) {
 782         case 44100:
 783                 reg71_set = 0x00004000;
 784                 break;
 785         case 48000:
 786                 reg71_set = 0;
 787                 break;
 788         case 96000:
 789                 reg71_set = 0x00008000;
 790                 over_sampling=0xa;
 791                 break;
 792         case 192000:
 793                 reg71_set = 0x0000c000;
 794                 over_sampling=0xa;
 795                 break;
 796         default:
 797                 reg71_set = 0;
 798                 break;
 799         }
 800         /* Format is a global setting */
 801         /* FIXME: Only let the first channel accessed set this. */
 802         switch (runtime->format) {
 803         case SNDRV_PCM_FORMAT_S16_LE:
 804                 hcfg_set = 0;
 805                 break;
 806         case SNDRV_PCM_FORMAT_S32_LE:
 807                 hcfg_set = HCFG_CAPTURE_S32_LE;
 808                 break;
 809         default:
 810                 hcfg_set = 0;
 811                 break;
 812         }
 813         hcfg = inl(emu->port + HCFG) ;
 814         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 815         outl(hcfg, emu->port + HCFG);
 816         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 817         reg71 = (reg71 & ~reg71_mask) | reg71_set;
 818         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 819         if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
 820                 snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
 821         }
 822
 823
 824         //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));
 825         snd_ca0106_ptr_write(emu, 0x13, channel, 0);
 826         snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
 827         snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
 828         snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
 829
 830         return 0;
 831 }
 832
 833 /* trigger_playback callback */
 834 static int snd_ca0106_pcm_trigger_playback(struct snd_pcm_substream *substream,
 835                                     int cmd)
 836 {
 837         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 838         struct snd_pcm_runtime *runtime;
 839         struct snd_ca0106_pcm *epcm;
 840         int channel;
 841         int result = 0;
 842         struct snd_pcm_substream *s;
 843         u32 basic = 0;
 844         u32 extended = 0;
 845         int running=0;
 846
 847         switch (cmd) {
 848         case SNDRV_PCM_TRIGGER_START:
 849                 running=1;
 850                 break;
 851         case SNDRV_PCM_TRIGGER_STOP:
 852         default:
 853                 running=0;
 854                 break;
 855         }
 856         snd_pcm_group_for_each_entry(s, substream) {
 857                 if (snd_pcm_substream_chip(s) != emu ||
 858                     s->stream != SNDRV_PCM_STREAM_PLAYBACK)
 859                         continue;
 860                 runtime = s->runtime;
 861                 epcm = runtime->private_data;
 862                 channel = epcm->channel_id;
 863                 //snd_printk("channel=%d\n",channel);
 864                 epcm->running = running;
 865                 basic |= (0x1<<channel);
 866                 extended |= (0x10<<channel);
 867                 snd_pcm_trigger_done(s, substream);
 868         }
 869         //snd_printk("basic=0x%x, extended=0x%x\n",basic, extended);
 870
 871         switch (cmd) {
 872         case SNDRV_PCM_TRIGGER_START:
 873                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (extended));
 874                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(basic));
 875                 break;
 876         case SNDRV_PCM_TRIGGER_STOP:
 877                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(basic));
 878                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(extended));
 879                 break;
 880         default:
 881                 result = -EINVAL;
 882                 break;
 883         }
 884         return result;
 885 }
 886
 887 /* trigger_capture callback */
 888 static int snd_ca0106_pcm_trigger_capture(struct snd_pcm_substream *substream,
 889                                     int cmd)
 890 {
 891         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 892         struct snd_pcm_runtime *runtime = substream->runtime;
 893         struct snd_ca0106_pcm *epcm = runtime->private_data;
 894         int channel = epcm->channel_id;
 895         int result = 0;
 896
 897         switch (cmd) {
 898         case SNDRV_PCM_TRIGGER_START:
 899                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
 900                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
 901                 epcm->running = 1;
 902                 break;
 903         case SNDRV_PCM_TRIGGER_STOP:
 904                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
 905                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
 906                 epcm->running = 0;
 907                 break;
 908         default:
 909                 result = -EINVAL;
 910                 break;
 911         }
 912         return result;
 913 }
 914
 915 /* pointer_playback callback */
 916 static snd_pcm_uframes_t
 917 snd_ca0106_pcm_pointer_playback(struct snd_pcm_substream *substream)
 918 {
 919         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 920         struct snd_pcm_runtime *runtime = substream->runtime;
 921         struct snd_ca0106_pcm *epcm = runtime->private_data;
 922         snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
 923         int channel = epcm->channel_id;
 924
 925         if (!epcm->running)
 926                 return 0;
 927
 928         ptr3 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
 929         ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
 930         ptr4 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
 931         if (ptr3 != ptr4) ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
 932         ptr2 = bytes_to_frames(runtime, ptr1);
 933         ptr2+= (ptr4 >> 3) * runtime->period_size;
 934         ptr=ptr2;
 935         if (ptr >= runtime->buffer_size)
 936                 ptr -= runtime->buffer_size;
 937         //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);
 938
 939         return ptr;
 940 }
 941
 942 /* pointer_capture callback */
 943 static snd_pcm_uframes_t
 944 snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream *substream)
 945 {
 946         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 947         struct snd_pcm_runtime *runtime = substream->runtime;
 948         struct snd_ca0106_pcm *epcm = runtime->private_data;
 949         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
 950         int channel = channel=epcm->channel_id;
 951
 952         if (!epcm->running)
 953                 return 0;
 954
 955         ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
 956         ptr2 = bytes_to_frames(runtime, ptr1);
 957         ptr=ptr2;
 958         if (ptr >= runtime->buffer_size)
 959                 ptr -= runtime->buffer_size;
 960         //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);
 961
 962         return ptr;
 963 }
 964
 965 /* operators */
 966 static struct snd_pcm_ops snd_ca0106_playback_front_ops = {
 967         .open =        snd_ca0106_pcm_open_playback_front,
 968         .close =       snd_ca0106_pcm_close_playback,
 969         .ioctl =       snd_pcm_lib_ioctl,
 970         .hw_params =   snd_ca0106_pcm_hw_params_playback,
 971         .hw_free =     snd_ca0106_pcm_hw_free_playback,
 972         .prepare =     snd_ca0106_pcm_prepare_playback,
 973         .trigger =     snd_ca0106_pcm_trigger_playback,
 974         .pointer =     snd_ca0106_pcm_pointer_playback,
 975 };
 976
 977 static struct snd_pcm_ops snd_ca0106_capture_0_ops = {
 978         .open =        snd_ca0106_pcm_open_0_capture,
 979         .close =       snd_ca0106_pcm_close_capture,
 980         .ioctl =       snd_pcm_lib_ioctl,
 981         .hw_params =   snd_ca0106_pcm_hw_params_capture,
 982         .hw_free =     snd_ca0106_pcm_hw_free_capture,
 983         .prepare =     snd_ca0106_pcm_prepare_capture,
 984         .trigger =     snd_ca0106_pcm_trigger_capture,
 985         .pointer =     snd_ca0106_pcm_pointer_capture,
 986 };
 987
 988 static struct snd_pcm_ops snd_ca0106_capture_1_ops = {
 989         .open =        snd_ca0106_pcm_open_1_capture,
 990         .close =       snd_ca0106_pcm_close_capture,
 991         .ioctl =       snd_pcm_lib_ioctl,
 992         .hw_params =   snd_ca0106_pcm_hw_params_capture,
 993         .hw_free =     snd_ca0106_pcm_hw_free_capture,
 994         .prepare =     snd_ca0106_pcm_prepare_capture,
 995         .trigger =     snd_ca0106_pcm_trigger_capture,
 996         .pointer =     snd_ca0106_pcm_pointer_capture,
 997 };
 998
 999 static struct snd_pcm_ops snd_ca0106_capture_2_ops = {
1000         .open =        snd_ca0106_pcm_open_2_capture,
1001         .close =       snd_ca0106_pcm_close_capture,
1002         .ioctl =       snd_pcm_lib_ioctl,
1003         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1004         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1005         .prepare =     snd_ca0106_pcm_prepare_capture,
1006         .trigger =     snd_ca0106_pcm_trigger_capture,
1007         .pointer =     snd_ca0106_pcm_pointer_capture,
1008 };
1009
1010 static struct snd_pcm_ops snd_ca0106_capture_3_ops = {
1011         .open =        snd_ca0106_pcm_open_3_capture,
1012         .close =       snd_ca0106_pcm_close_capture,
1013         .ioctl =       snd_pcm_lib_ioctl,
1014         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1015         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1016         .prepare =     snd_ca0106_pcm_prepare_capture,
1017         .trigger =     snd_ca0106_pcm_trigger_capture,
1018         .pointer =     snd_ca0106_pcm_pointer_capture,
1019 };
1020
1021 static struct snd_pcm_ops snd_ca0106_playback_center_lfe_ops = {
1022         .open =         snd_ca0106_pcm_open_playback_center_lfe,
1023         .close =        snd_ca0106_pcm_close_playback,
1024         .ioctl =        snd_pcm_lib_ioctl,
1025         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1026         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1027         .prepare =      snd_ca0106_pcm_prepare_playback,
1028         .trigger =      snd_ca0106_pcm_trigger_playback,
1029         .pointer =      snd_ca0106_pcm_pointer_playback,
1030 };
1031
1032 static struct snd_pcm_ops snd_ca0106_playback_unknown_ops = {
1033         .open =         snd_ca0106_pcm_open_playback_unknown,
1034         .close =        snd_ca0106_pcm_close_playback,
1035         .ioctl =        snd_pcm_lib_ioctl,
1036         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1037         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1038         .prepare =      snd_ca0106_pcm_prepare_playback,
1039         .trigger =      snd_ca0106_pcm_trigger_playback,
1040         .pointer =      snd_ca0106_pcm_pointer_playback,
1041 };
1042
1043 static struct snd_pcm_ops snd_ca0106_playback_rear_ops = {
1044         .open =         snd_ca0106_pcm_open_playback_rear,
1045         .close =        snd_ca0106_pcm_close_playback,
1046         .ioctl =        snd_pcm_lib_ioctl,
1047         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1048                 .hw_free =      snd_ca0106_pcm_hw_free_playback,
1049         .prepare =      snd_ca0106_pcm_prepare_playback,
1050         .trigger =      snd_ca0106_pcm_trigger_playback,
1051         .pointer =      snd_ca0106_pcm_pointer_playback,
1052 };
1053
1054
1055 static unsigned short snd_ca0106_ac97_read(struct snd_ac97 *ac97,
1056                                              unsigned short reg)
1057 {
1058         struct snd_ca0106 *emu = ac97->private_data;
1059         unsigned long flags;
1060         unsigned short val;
1061
1062         spin_lock_irqsave(&emu->emu_lock, flags);
1063         outb(reg, emu->port + AC97ADDRESS);
1064         val = inw(emu->port + AC97DATA);
1065         spin_unlock_irqrestore(&emu->emu_lock, flags);
1066         return val;
1067 }
1068
1069 static void snd_ca0106_ac97_write(struct snd_ac97 *ac97,
1070                                     unsigned short reg, unsigned short val)
1071 {
1072         struct snd_ca0106 *emu = ac97->private_data;
1073         unsigned long flags;
1074
1075         spin_lock_irqsave(&emu->emu_lock, flags);
1076         outb(reg, emu->port + AC97ADDRESS);
1077         outw(val, emu->port + AC97DATA);
1078         spin_unlock_irqrestore(&emu->emu_lock, flags);
1079 }
1080
1081 static int snd_ca0106_ac97(struct snd_ca0106 *chip)
1082 {
1083         struct snd_ac97_bus *pbus;
1084         struct snd_ac97_template ac97;
1085         int err;
1086         static struct snd_ac97_bus_ops ops = {
1087                 .write = snd_ca0106_ac97_write,
1088                 .read = snd_ca0106_ac97_read,
1089         };
1090
1091         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
1092                 return err;
1093         pbus->no_vra = 1; /* we don't need VRA */
1094
1095         memset(&ac97, 0, sizeof(ac97));
1096         ac97.private_data = chip;
1097         ac97.scaps = AC97_SCAP_NO_SPDIF;
1098         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1099 }
1100
1101 static int snd_ca0106_free(struct snd_ca0106 *chip)
1102 {
1103         if (chip->res_port != NULL) {    /* avoid access to already used hardware */
1104                 // disable interrupts
1105                 snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
1106                 outl(0, chip->port + INTE);
1107                 snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
1108                 udelay(1000);
1109                 // disable audio
1110                 //outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG);
1111                 outl(0, chip->port + HCFG);
1112                 /* FIXME: We need to stop and DMA transfers here.
1113                  *        But as I am not sure how yet, we cannot from the dma pages.
1114                  * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
1115                  */
1116         }
1117         if (chip->irq >= 0)
1118                 free_irq(chip->irq, chip);
1119         // release the data
1120 #if 1
1121         if (chip->buffer.area)
1122                 snd_dma_free_pages(&chip->buffer);
1123 #endif
1124
1125         // release the i/o port
1126         release_and_free_resource(chip->res_port);
1127
1128         pci_disable_device(chip->pci);
1129         kfree(chip);
1130         return 0;
1131 }
1132
1133 static int snd_ca0106_dev_free(struct snd_device *device)
1134 {
1135         struct snd_ca0106 *chip = device->device_data;
1136         return snd_ca0106_free(chip);
1137 }
1138
1139 static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
1140 {
1141         unsigned int status;
1142
1143         struct snd_ca0106 *chip = dev_id;
1144         int i;
1145         int mask;
1146         unsigned int stat76;
1147         struct snd_ca0106_channel *pchannel;
1148
1149         status = inl(chip->port + IPR);
1150         if (! status)
1151                 return IRQ_NONE;
1152
1153         stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1154         //snd_printk("interrupt status = 0x%08x, stat76=0x%08x\n", status, stat76);
1155         //snd_printk("ptr=0x%08x\n",snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1156         mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1157         for(i = 0; i < 4; i++) {
1158                 pchannel = &(chip->playback_channels[i]);
1159                 if (stat76 & mask) {
1160 /* FIXME: Select the correct substream for period elapsed */
1161                         if(pchannel->use) {
1162                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1163                                 //printk(KERN_INFO "interrupt [%d] used\n", i);
1164                         }
1165                 }
1166                 //printk(KERN_INFO "channel=%p\n",pchannel);
1167                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1168                 mask <<= 1;
1169         }
1170         mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1171         for(i = 0; i < 4; i++) {
1172                 pchannel = &(chip->capture_channels[i]);
1173                 if (stat76 & mask) {
1174 /* FIXME: Select the correct substream for period elapsed */
1175                         if(pchannel->use) {
1176                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1177                                 //printk(KERN_INFO "interrupt [%d] used\n", i);
1178                         }
1179                 }
1180                 //printk(KERN_INFO "channel=%p\n",pchannel);
1181                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1182                 mask <<= 1;
1183         }
1184
1185         snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1186
1187         if (chip->midi.dev_id &&
1188             (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1189                 if (chip->midi.interrupt)
1190                         chip->midi.interrupt(&chip->midi, status);
1191                 else
1192                         chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1193         }
1194
1195         // acknowledge the interrupt if necessary
1196         outl(status, chip->port+IPR);
1197
1198         return IRQ_HANDLED;
1199 }
1200
1201 static int __devinit snd_ca0106_pcm(struct snd_ca0106 *emu, int device, struct snd_pcm **rpcm)
1202 {
1203         struct snd_pcm *pcm;
1204         struct snd_pcm_substream *substream;
1205         int err;
1206
1207         if (rpcm)
1208                 *rpcm = NULL;
1209         if ((err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm)) < 0)
1210                 return err;
1211
1212         pcm->private_data = emu;
1213
1214         switch (device) {
1215         case 0:
1216           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1217           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1218           break;
1219         case 1:
1220           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1221           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1222           break;
1223         case 2:
1224           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1225           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1226           break;
1227         case 3:
1228           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1229           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1230           break;
1231         }
1232
1233         pcm->info_flags = 0;
1234         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1235         strcpy(pcm->name, "CA0106");
1236         emu->pcm = pcm;
1237
1238         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
1239             substream;
1240             substream = substream->next) {
1241                 if ((err = snd_pcm_lib_preallocate_pages(substream,
1242                                                          SNDRV_DMA_TYPE_DEV,
1243                                                          snd_dma_pci_data(emu->pci),
1244                                                          64*1024, 64*1024)) < 0) /* FIXME: 32*1024 for sound buffer, between 32and64 for Periods table. */
1245                         return err;
1246         }
1247
1248         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
1249               substream;
1250               substream = substream->next) {
1251                 if ((err = snd_pcm_lib_preallocate_pages(substream,
1252                                                    SNDRV_DMA_TYPE_DEV,
1253                                                    snd_dma_pci_data(emu->pci),
1254                                                    64*1024, 64*1024)) < 0)
1255                         return err;
1256         }
1257
1258         if (rpcm)
1259                 *rpcm = pcm;
1260
1261         return 0;
1262 }
1263
1264 #define SPI_REG(reg, value)     (((reg) << SPI_REG_SHIFT) | (value))
1265 static unsigned int spi_dac_init[] = {
1266         SPI_REG(SPI_LDA1_REG,   SPI_DA_BIT_0dB), /* 0dB dig. attenuation */
1267         SPI_REG(SPI_RDA1_REG,   SPI_DA_BIT_0dB),
1268         SPI_REG(SPI_PL_REG,     SPI_PL_BIT_L_L | SPI_PL_BIT_R_R | SPI_IZD_BIT),
1269         SPI_REG(SPI_FMT_REG,    SPI_FMT_BIT_I2S | SPI_IWL_BIT_24),
1270         SPI_REG(SPI_LDA2_REG,   SPI_DA_BIT_0dB),
1271         SPI_REG(SPI_RDA2_REG,   SPI_DA_BIT_0dB),
1272         SPI_REG(SPI_LDA3_REG,   SPI_DA_BIT_0dB),
1273         SPI_REG(SPI_RDA3_REG,   SPI_DA_BIT_0dB),
1274         SPI_REG(SPI_MASTDA_REG, SPI_DA_BIT_0dB),
1275         SPI_REG(9,              0x00),
1276         SPI_REG(SPI_MS_REG,     SPI_DACD0_BIT | SPI_DACD1_BIT | SPI_DACD2_BIT),
1277         SPI_REG(12,             0x00),
1278         SPI_REG(SPI_LDA4_REG,   SPI_DA_BIT_0dB),
1279         SPI_REG(SPI_RDA4_REG,   SPI_DA_BIT_0dB | SPI_DA_BIT_UPDATE),
1280         SPI_REG(SPI_DACD4_REG,  0x00),
1281 };
1282
1283 static unsigned int i2c_adc_init[][2] = {
1284         { 0x17, 0x00 }, /* Reset */
1285         { 0x07, 0x00 }, /* Timeout */
1286         { 0x0b, 0x22 },  /* Interface control */
1287         { 0x0c, 0x22 },  /* Master mode control */
1288         { 0x0d, 0x08 },  /* Powerdown control */
1289         { 0x0e, 0xcf },  /* Attenuation Left  0x01 = -103dB, 0xff = 24dB */
1290         { 0x0f, 0xcf },  /* Attenuation Right 0.5dB steps */
1291         { 0x10, 0x7b },  /* ALC Control 1 */
1292         { 0x11, 0x00 },  /* ALC Control 2 */
1293         { 0x12, 0x32 },  /* ALC Control 3 */
1294         { 0x13, 0x00 },  /* Noise gate control */
1295         { 0x14, 0xa6 },  /* Limiter control */
1296         { 0x15, ADC_MUX_LINEIN },  /* ADC Mixer control */
1297 };
1298
1299 static int __devinit snd_ca0106_create(int dev, struct snd_card *card,
1300                                          struct pci_dev *pci,
1301                                          struct snd_ca0106 **rchip)
1302 {
1303         struct snd_ca0106 *chip;
1304         struct snd_ca0106_details *c;
1305         int err;
1306         int ch;
1307         static struct snd_device_ops ops = {
1308                 .dev_free = snd_ca0106_dev_free,
1309         };
1310
1311         *rchip = NULL;
1312
1313         if ((err = pci_enable_device(pci)) < 0)
1314                 return err;
1315         if (pci_set_dma_mask(pci, DMA_32BIT_MASK) < 0 ||
1316             pci_set_consistent_dma_mask(pci, DMA_32BIT_MASK) < 0) {
1317                 printk(KERN_ERR "error to set 32bit mask DMA\n");
1318                 pci_disable_device(pci);
1319                 return -ENXIO;
1320         }
1321
1322         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1323         if (chip == NULL) {
1324                 pci_disable_device(pci);
1325                 return -ENOMEM;
1326         }
1327
1328         chip->card = card;
1329         chip->pci = pci;
1330         chip->irq = -1;
1331
1332         spin_lock_init(&chip->emu_lock);
1333
1334         chip->port = pci_resource_start(pci, 0);
1335         if ((chip->res_port = request_region(chip->port, 0x20,
1336                                              "snd_ca0106")) == NULL) {
1337                 snd_ca0106_free(chip);
1338                 printk(KERN_ERR "cannot allocate the port\n");
1339                 return -EBUSY;
1340         }
1341
1342         if (request_irq(pci->irq, snd_ca0106_interrupt,
1343                         IRQF_SHARED, "snd_ca0106", chip)) {
1344                 snd_ca0106_free(chip);
1345                 printk(KERN_ERR "cannot grab irq\n");
1346                 return -EBUSY;
1347         }
1348         chip->irq = pci->irq;
1349
1350         /* This stores the periods table. */
1351         if(snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci), 1024, &chip->buffer) < 0) {
1352                 snd_ca0106_free(chip);
1353                 return -ENOMEM;
1354         }
1355
1356         pci_set_master(pci);
1357         /* read serial */
1358         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1359         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1360 #if 1
1361         printk(KERN_INFO "snd-ca0106: Model %04x Rev %08x Serial %08x\n", chip->model,
1362                pci->revision, chip->serial);
1363 #endif
1364         strcpy(card->driver, "CA0106");
1365         strcpy(card->shortname, "CA0106");
1366
1367         for (c = ca0106_chip_details; c->serial; c++) {
1368                 if (subsystem[dev]) {
1369                         if (c->serial == subsystem[dev])
1370                                 break;
1371                 } else if (c->serial == chip->serial)
1372                         break;
1373         }
1374         chip->details = c;
1375         if (subsystem[dev]) {
1376                 printk(KERN_INFO "snd-ca0106: Sound card name=%s, subsystem=0x%x. Forced to subsystem=0x%x\n",
1377                         c->name, chip->serial, subsystem[dev]);
1378         }
1379
1380         sprintf(card->longname, "%s at 0x%lx irq %i",
1381                 c->name, chip->port, chip->irq);
1382
1383         outl(0, chip->port + INTE);
1384
1385         /*
1386          *  Init to 0x02109204 :
1387          *  Clock accuracy    = 0     (1000ppm)
1388          *  Sample Rate       = 2     (48kHz)
1389          *  Audio Channel     = 1     (Left of 2)
1390          *  Source Number     = 0     (Unspecified)
1391          *  Generation Status = 1     (Original for Cat Code 12)
1392          *  Cat Code          = 12    (Digital Signal Mixer)
1393          *  Mode              = 0     (Mode 0)
1394          *  Emphasis          = 0     (None)
1395          *  CP                = 1     (Copyright unasserted)
1396          *  AN                = 0     (Audio data)
1397          *  P                 = 0     (Consumer)
1398          */
1399         snd_ca0106_ptr_write(chip, SPCS0, 0,
1400                                 chip->spdif_bits[0] =
1401                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1402                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1403                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1404                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1405         /* Only SPCS1 has been tested */
1406         snd_ca0106_ptr_write(chip, SPCS1, 0,
1407                                 chip->spdif_bits[1] =
1408                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1409                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1410                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1411                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1412         snd_ca0106_ptr_write(chip, SPCS2, 0,
1413                                 chip->spdif_bits[2] =
1414                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1415                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1416                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1417                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1418         snd_ca0106_ptr_write(chip, SPCS3, 0,
1419                                 chip->spdif_bits[3] =
1420                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1421                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1422                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1423                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1424
1425         snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1426         snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1427
1428         /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1429         outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
1430         outw(0x8000, chip->port + AC97DATA);
1431 #if 0
1432         snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1433         snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1434         snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1435         snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1436 #endif
1437
1438         //snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); /* OSS drivers set this. */
1439         /* Analog or Digital output */
1440         snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1441         snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000); /* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers. Use 0x000f0000 for surround71 */
1442         chip->spdif_enable = 0; /* Set digital SPDIF output off */
1443         //snd_ca0106_ptr_write(chip, 0x45, 0, 0); /* Analogue out */
1444         //snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00); /* Digital out */
1445
1446         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000); /* goes to 0x40c80000 when doing SPDIF IN/OUT */
1447         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff); /* (Mute) CAPTURE feedback into PLAYBACK volume. Only lower 16 bits matter. */
1448         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000); /* SPDIF IN Volume */
1449         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000); /* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1450         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1451         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1452         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1453         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1454         for(ch = 0; ch < 4; ch++) {
1455                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030); /* Only high 16 bits matter */
1456                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1457                 //snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040); /* Mute */
1458                 //snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040); /* Mute */
1459                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff); /* Mute */
1460                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff); /* Mute */
1461         }
1462         if (chip->details->i2c_adc == 1) {
1463                 /* Select MIC, Line in, TAD in, AUX in */
1464                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1465                 /* Default to CAPTURE_SOURCE to i2s in */
1466                 chip->capture_source = 3;
1467         } else if (chip->details->ac97 == 1) {
1468                 /* Default to AC97 in */
1469                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x444400e4);
1470                 /* Default to CAPTURE_SOURCE to AC97 in */
1471                 chip->capture_source = 4;
1472         } else {
1473                 /* Select MIC, Line in, TAD in, AUX in */
1474                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1475                 /* Default to Set CAPTURE_SOURCE to i2s in */
1476                 chip->capture_source = 3;
1477         }
1478
1479         if (chip->details->gpio_type == 2) { /* The SB0438 use GPIO differently. */
1480                 /* FIXME: Still need to find out what the other GPIO bits do. E.g. For digital spdif out. */
1481                 outl(0x0, chip->port+GPIO);
1482                 //outl(0x00f0e000, chip->port+GPIO); /* Analog */
1483                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1484         } else if (chip->details->gpio_type == 1) { /* The SB0410 and SB0413 use GPIO differently. */
1485                 /* FIXME: Still need to find out what the other GPIO bits do. E.g. For digital spdif out. */
1486                 outl(0x0, chip->port+GPIO);
1487                 //outl(0x00f0e000, chip->port+GPIO); /* Analog */
1488                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1489         } else {
1490                 outl(0x0, chip->port+GPIO);
1491                 outl(0x005f03a3, chip->port+GPIO); /* Analog */
1492                 //outl(0x005f02a2, chip->port+GPIO);   /* SPDIF */
1493         }
1494         snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1495
1496         //outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG);
1497         //outl(0x00001409, chip->port+HCFG); /* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1498         //outl(0x00000009, chip->port+HCFG);
1499         outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG); /* AC97 2.0, Enable outputs. */
1500
1501         if (chip->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
1502                 int size, n;
1503
1504                 size = ARRAY_SIZE(i2c_adc_init);
1505                 //snd_printk("I2C:array size=0x%x\n", size);
1506                 for (n=0; n < size; n++) {
1507                         snd_ca0106_i2c_write(chip, i2c_adc_init[n][0], i2c_adc_init[n][1]);
1508                 }
1509                 for (n=0; n < 4; n++) {
1510                         chip->i2c_capture_volume[n][0]= 0xcf;
1511                         chip->i2c_capture_volume[n][1]= 0xcf;
1512                 }
1513                 chip->i2c_capture_source=2; /* Line in */
1514                 //snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); /* Enable Line-in capture. MIC in currently untested. */
1515         }
1516         if (chip->details->spi_dac == 1) { /* The SB0570 use SPI to control DAC. */
1517                 int size, n;
1518
1519                 size = ARRAY_SIZE(spi_dac_init);
1520                 for (n = 0; n < size; n++) {
1521                         int reg = spi_dac_init[n] >> SPI_REG_SHIFT;
1522
1523                         snd_ca0106_spi_write(chip, spi_dac_init[n]);
1524                         if (reg < ARRAY_SIZE(chip->spi_dac_reg))
1525                                 chip->spi_dac_reg[reg] = spi_dac_init[n];
1526                 }
1527         }
1528
1529         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
1530                                   chip, &ops)) < 0) {
1531                 snd_ca0106_free(chip);
1532                 return err;
1533         }
1534         *rchip = chip;
1535         return 0;
1536 }
1537
1538
1539 static void ca0106_midi_interrupt_enable(struct snd_ca_midi *midi, int intr)
1540 {
1541         snd_ca0106_intr_enable((struct snd_ca0106 *)(midi->dev_id), intr);
1542 }
1543
1544 static void ca0106_midi_interrupt_disable(struct snd_ca_midi *midi, int intr)
1545 {
1546         snd_ca0106_intr_disable((struct snd_ca0106 *)(midi->dev_id), intr);
1547 }
1548
1549 static unsigned char ca0106_midi_read(struct snd_ca_midi *midi, int idx)
1550 {
1551         return (unsigned char)snd_ca0106_ptr_read((struct snd_ca0106 *)(midi->dev_id),
1552                                                   midi->port + idx, 0);
1553 }
1554
1555 static void ca0106_midi_write(struct snd_ca_midi *midi, int data, int idx)
1556 {
1557         snd_ca0106_ptr_write((struct snd_ca0106 *)(midi->dev_id), midi->port + idx, 0, data);
1558 }
1559
1560 static struct snd_card *ca0106_dev_id_card(void *dev_id)
1561 {
1562         return ((struct snd_ca0106 *)dev_id)->card;
1563 }
1564
1565 static int ca0106_dev_id_port(void *dev_id)
1566 {
1567         return ((struct snd_ca0106 *)dev_id)->port;
1568 }
1569
1570 static int __devinit snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
1571 {
1572         struct snd_ca_midi *midi;
1573         char *name;
1574         int err;
1575
1576         if (channel == CA0106_MIDI_CHAN_B) {
1577                 name = "CA0106 MPU-401 (UART) B";
1578                 midi =  &chip->midi2;
1579                 midi->tx_enable = INTE_MIDI_TX_B;
1580                 midi->rx_enable = INTE_MIDI_RX_B;
1581                 midi->ipr_tx = IPR_MIDI_TX_B;
1582                 midi->ipr_rx = IPR_MIDI_RX_B;
1583                 midi->port = MIDI_UART_B_DATA;
1584         } else {
1585                 name = "CA0106 MPU-401 (UART)";
1586                 midi =  &chip->midi;
1587                 midi->tx_enable = INTE_MIDI_TX_A;
1588                 midi->rx_enable = INTE_MIDI_TX_B;
1589                 midi->ipr_tx = IPR_MIDI_TX_A;
1590                 midi->ipr_rx = IPR_MIDI_RX_A;
1591                 midi->port = MIDI_UART_A_DATA;
1592         }
1593
1594         midi->reset = CA0106_MPU401_RESET;
1595         midi->enter_uart = CA0106_MPU401_ENTER_UART;
1596         midi->ack = CA0106_MPU401_ACK;
1597
1598         midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1599         midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1600
1601         midi->channel = channel;
1602
1603         midi->interrupt_enable = ca0106_midi_interrupt_enable;
1604         midi->interrupt_disable = ca0106_midi_interrupt_disable;
1605
1606         midi->read = ca0106_midi_read;
1607         midi->write = ca0106_midi_write;
1608
1609         midi->get_dev_id_card = ca0106_dev_id_card;
1610         midi->get_dev_id_port = ca0106_dev_id_port;
1611
1612         midi->dev_id = chip;
1613
1614         if ((err = ca_midi_init(chip, midi, 0, name)) < 0)
1615                 return err;
1616
1617         return 0;
1618 }
1619
1620
1621 static int __devinit snd_ca0106_probe(struct pci_dev *pci,
1622                                         const struct pci_device_id *pci_id)
1623 {
1624         static int dev;
1625         struct snd_card *card;
1626         struct snd_ca0106 *chip;
1627         int err;
1628
1629         if (dev >= SNDRV_CARDS)
1630                 return -ENODEV;
1631         if (!enable[dev]) {
1632                 dev++;
1633                 return -ENOENT;
1634         }
1635
1636         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
1637         if (card == NULL)
1638                 return -ENOMEM;
1639
1640         if ((err = snd_ca0106_create(dev, card, pci, &chip)) < 0) {
1641                 snd_card_free(card);
1642                 return err;
1643         }
1644
1645         if ((err = snd_ca0106_pcm(chip, 0, NULL)) < 0) {
1646                 snd_card_free(card);
1647                 return err;
1648         }
1649         if ((err = snd_ca0106_pcm(chip, 1, NULL)) < 0) {
1650                 snd_card_free(card);
1651                 return err;
1652         }
1653         if ((err = snd_ca0106_pcm(chip, 2, NULL)) < 0) {
1654                 snd_card_free(card);
1655                 return err;
1656         }
1657         if ((err = snd_ca0106_pcm(chip, 3, NULL)) < 0) {
1658                 snd_card_free(card);
1659                 return err;
1660         }
1661         if (chip->details->ac97 == 1) { /* The SB0410 and SB0413 do not have an AC97 chip. */
1662                 if ((err = snd_ca0106_ac97(chip)) < 0) {
1663                         snd_card_free(card);
1664                         return err;
1665                 }
1666         }
1667         if ((err = snd_ca0106_mixer(chip)) < 0) {
1668                 snd_card_free(card);
1669                 return err;
1670         }
1671
1672         snd_printdd("ca0106: probe for MIDI channel A ...");
1673         if ((err = snd_ca0106_midi(chip,CA0106_MIDI_CHAN_A)) < 0) {
1674                 snd_card_free(card);
1675                 snd_printdd(" failed, err=0x%x\n",err);
1676                 return err;
1677         }
1678         snd_printdd(" done.\n");
1679
1680 #ifdef CONFIG_PROC_FS
1681         snd_ca0106_proc_init(chip);
1682 #endif
1683
1684         snd_card_set_dev(card, &pci->dev);
1685
1686         if ((err = snd_card_register(card)) < 0) {
1687                 snd_card_free(card);
1688                 return err;
1689         }
1690
1691         pci_set_drvdata(pci, card);
1692         dev++;
1693         return 0;
1694 }
1695
1696 static void __devexit snd_ca0106_remove(struct pci_dev *pci)
1697 {
1698         snd_card_free(pci_get_drvdata(pci));
1699         pci_set_drvdata(pci, NULL);
1700 }
1701
1702 // PCI IDs
1703 static struct pci_device_id snd_ca0106_ids[] = {
1704         { 0x1102, 0x0007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },    /* Audigy LS or Live 24bit */
1705         { 0, }
1706 };
1707 MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1708
1709 // pci_driver definition
1710 static struct pci_driver driver = {
1711         .name = "CA0106",
1712         .id_table = snd_ca0106_ids,
1713         .probe = snd_ca0106_probe,
1714         .remove = __devexit_p(snd_ca0106_remove),
1715 };
1716
1717 // initialization of the module
1718 static int __init alsa_card_ca0106_init(void)
1719 {
1720         return pci_register_driver(&driver);
1721 }
1722
1723 // clean up the module
1724 static void __exit alsa_card_ca0106_exit(void)
1725 {
1726         pci_unregister_driver(&driver);
1727 }
1728
1729 module_init(alsa_card_ca0106_init)
1730 module_exit(alsa_card_ca0106_exit)