SAFE public projects git trees. - safe/jmp/linux-2.6/blob - 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: 0.0.23
   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  *
  83  *  BUGS:
  84  *    Some stability problems when unloading the snd-ca0106 kernel module.
  85  *    --
  86  *
  87  *  TODO:
  88  *    4 Capture channels, only one implemented so far.
  89  *    Other capture rates apart from 48khz not implemented.
  90  *    MIDI
  91  *    --
  92  *  GENERAL INFO:
  93  *    Model: SB0310
  94  *    P17 Chip: CA0106-DAT
  95  *    AC97 Codec: STAC 9721
  96  *    ADC: Philips 1361T (Stereo 24bit)
  97  *    DAC: WM8746EDS (6-channel, 24bit, 192Khz)
  98  *
  99  *  GENERAL INFO:
 100  *    Model: SB0410
 101  *    P17 Chip: CA0106-DAT
 102  *    AC97 Codec: None
 103  *    ADC: WM8775EDS (4 Channel)
 104  *    DAC: CS4382 (114 dB, 24-Bit, 192 kHz, 8-Channel D/A Converter with DSD Support)
 105  *    SPDIF Out control switches between Mic in and SPDIF out.
 106  *    No sound out or mic input working yet.
 107  *
 108  *  GENERAL INFO:
 109  *    Model: SB0413
 110  *    P17 Chip: CA0106-DAT
 111  *    AC97 Codec: None.
 112  *    ADC: Unknown
 113  *    DAC: Unknown
 114  *    Trying to handle it like the SB0410.
 115  *
 116  *  This code was initally based on code from ALSA's emu10k1x.c which is:
 117  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
 118  *
 119  *   This program is free software; you can redistribute it and/or modify
 120  *   it under the terms of the GNU General Public License as published by
 121  *   the Free Software Foundation; either version 2 of the License, or
 122  *   (at your option) any later version.
 123  *
 124  *   This program is distributed in the hope that it will be useful,
 125  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 126  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 127  *   GNU General Public License for more details.
 128  *
 129  *   You should have received a copy of the GNU General Public License
 130  *   along with this program; if not, write to the Free Software
 131  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 132  *
 133  */
 134 #include <sound/driver.h>
 135 #include <linux/delay.h>
 136 #include <linux/init.h>
 137 #include <linux/interrupt.h>
 138 #include <linux/pci.h>
 139 #include <linux/slab.h>
 140 #include <linux/moduleparam.h>
 141 #include <linux/dma-mapping.h>
 142 #include <sound/core.h>
 143 #include <sound/initval.h>
 144 #include <sound/pcm.h>
 145 #include <sound/ac97_codec.h>
 146 #include <sound/info.h>
 147
 148 MODULE_AUTHOR("James Courtier-Dutton <James@superbug.demon.co.uk>");
 149 MODULE_DESCRIPTION("CA0106");
 150 MODULE_LICENSE("GPL");
 151 MODULE_SUPPORTED_DEVICE("{{Creative,SB CA0106 chip}}");
 152
 153 // module parameters (see "Module Parameters")
 154 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
 155 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
 156 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
 157
 158 module_param_array(index, int, NULL, 0444);
 159 MODULE_PARM_DESC(index, "Index value for the CA0106 soundcard.");
 160 module_param_array(id, charp, NULL, 0444);
 161 MODULE_PARM_DESC(id, "ID string for the CA0106 soundcard.");
 162 module_param_array(enable, bool, NULL, 0444);
 163 MODULE_PARM_DESC(enable, "Enable the CA0106 soundcard.");
 164
 165 #include "ca0106.h"
 166
 167 static ca0106_details_t ca0106_chip_details[] = {
 168          /* AudigyLS[SB0310] */
 169          { .serial = 0x10021102,
 170            .name   = "AudigyLS [SB0310]",
 171            .ac97   = 1 } ,
 172          /* Unknown AudigyLS that also says SB0310 on it */
 173          { .serial = 0x10051102,
 174            .name   = "AudigyLS [SB0310b]",
 175            .ac97   = 1 } ,
 176          /* New Sound Blaster Live! 7.1 24bit. This does not have an AC97. 53SB041000001 */
 177          { .serial = 0x10061102,
 178            .name   = "Live! 7.1 24bit [SB0410]",
 179            .gpio_type = 1,
 180            .i2c_adc = 1 } ,
 181          /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
 182          { .serial = 0x10071102,
 183            .name   = "Live! 7.1 24bit [SB0413]",
 184            .gpio_type = 1,
 185            .i2c_adc = 1 } ,
 186          /* MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97 */
 187          { .serial = 0x10091462,
 188            .name   = "MSI K8N Diamond MB [SB0438]",
 189            .gpio_type = 1,
 190            .i2c_adc = 1 } ,
 191          /* Shuttle XPC SD31P which has an onboard Creative Labs Sound Blaster Live! 24-bit EAX
 192           * high-definition 7.1 audio processor".
 193           * Added using info from andrewvegan in alsa bug #1298
 194           */
 195          { .serial = 0x30381297,
 196            .name   = "Shuttle XPC SD31P [SD31P]",
 197            .gpio_type = 1,
 198            .i2c_adc = 1 } ,
 199          { .serial = 0,
 200            .name   = "AudigyLS [Unknown]" }
 201 };
 202
 203 /* hardware definition */
 204 static snd_pcm_hardware_t snd_ca0106_playback_hw = {
 205         .info =                 (SNDRV_PCM_INFO_MMAP |
 206                                  SNDRV_PCM_INFO_INTERLEAVED |
 207                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 208                                  SNDRV_PCM_INFO_MMAP_VALID),
 209         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
 210         .rates =                SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000,
 211         .rate_min =             48000,
 212         .rate_max =             192000,
 213         .channels_min =         2,  //1,
 214         .channels_max =         2,  //6,
 215         .buffer_bytes_max =     ((65536 - 64) * 8),
 216         .period_bytes_min =     64,
 217         .period_bytes_max =     (65536 - 64),
 218         .periods_min =          2,
 219         .periods_max =          8,
 220         .fifo_size =            0,
 221 };
 222
 223 static snd_pcm_hardware_t snd_ca0106_capture_hw = {
 224         .info =                 (SNDRV_PCM_INFO_MMAP |
 225                                  SNDRV_PCM_INFO_INTERLEAVED |
 226                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 227                                  SNDRV_PCM_INFO_MMAP_VALID),
 228         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
 229         .rates =                SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000,
 230         .rate_min =             44100,
 231         .rate_max =             192000,
 232         .channels_min =         2,
 233         .channels_max =         2,
 234         .buffer_bytes_max =     ((65536 - 64) * 8),
 235         .period_bytes_min =     64,
 236         .period_bytes_max =     (65536 - 64),
 237         .periods_min =          2,
 238         .periods_max =          2,
 239         .fifo_size =            0,
 240 };
 241
 242 unsigned int snd_ca0106_ptr_read(ca0106_t * emu,
 243                                           unsigned int reg,
 244                                           unsigned int chn)
 245 {
 246         unsigned long flags;
 247         unsigned int regptr, val;
 248
 249         regptr = (reg << 16) | chn;
 250
 251         spin_lock_irqsave(&emu->emu_lock, flags);
 252         outl(regptr, emu->port + PTR);
 253         val = inl(emu->port + DATA);
 254         spin_unlock_irqrestore(&emu->emu_lock, flags);
 255         return val;
 256 }
 257
 258 void snd_ca0106_ptr_write(ca0106_t *emu,
 259                                    unsigned int reg,
 260                                    unsigned int chn,
 261                                    unsigned int data)
 262 {
 263         unsigned int regptr;
 264         unsigned long flags;
 265
 266         regptr = (reg << 16) | chn;
 267
 268         spin_lock_irqsave(&emu->emu_lock, flags);
 269         outl(regptr, emu->port + PTR);
 270         outl(data, emu->port + DATA);
 271         spin_unlock_irqrestore(&emu->emu_lock, flags);
 272 }
 273
 274 int snd_ca0106_i2c_write(ca0106_t *emu,
 275                                 u32 reg,
 276                                 u32 value)
 277 {
 278         u32 tmp;
 279         int timeout=0;
 280         int status;
 281         int retry;
 282         if ((reg > 0x7f) || (value > 0x1ff))
 283         {
 284                 snd_printk(KERN_ERR "i2c_write: invalid values.\n");
 285                 return -EINVAL;
 286         }
 287
 288         tmp = reg << 25 | value << 16;
 289         /* Not sure what this I2C channel controls. */
 290         /* snd_ca0106_ptr_write(emu, I2C_D0, 0, tmp); */
 291
 292         /* This controls the I2C connected to the WM8775 ADC Codec */
 293         snd_ca0106_ptr_write(emu, I2C_D1, 0, tmp);
 294
 295         for(retry=0;retry<10;retry++)
 296         {
 297                 /* Send the data to i2c */
 298                 tmp = snd_ca0106_ptr_read(emu, I2C_A, 0);
 299                 tmp = tmp & ~(I2C_A_ADC_READ|I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD_MASK);
 300                 tmp = tmp | (I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD);
 301                 snd_ca0106_ptr_write(emu, I2C_A, 0, tmp);
 302
 303                 /* Wait till the transaction ends */
 304                 while(1)
 305                 {
 306                         status = snd_ca0106_ptr_read(emu, I2C_A, 0);
 307                         //snd_printk("I2C:status=0x%x\n", status);
 308                         timeout++;
 309                         if((status & I2C_A_ADC_START)==0)
 310                                 break;
 311
 312                         if(timeout>1000)
 313                                 break;
 314                 }
 315                 //Read back and see if the transaction is successful
 316                 if((status & I2C_A_ADC_ABORT)==0)
 317                         break;
 318         }
 319
 320         if(retry==10)
 321         {
 322                 snd_printk(KERN_ERR "Writing to ADC failed!\n");
 323                 return -EINVAL;
 324         }
 325
 326         return 0;
 327 }
 328
 329
 330 static void snd_ca0106_intr_enable(ca0106_t *emu, unsigned int intrenb)
 331 {
 332         unsigned long flags;
 333         unsigned int enable;
 334
 335         spin_lock_irqsave(&emu->emu_lock, flags);
 336         enable = inl(emu->port + INTE) | intrenb;
 337         outl(enable, emu->port + INTE);
 338         spin_unlock_irqrestore(&emu->emu_lock, flags);
 339 }
 340
 341 static void snd_ca0106_intr_disable(ca0106_t *emu, unsigned int intrenb)
 342 {
 343         unsigned long flags;
 344         unsigned int enable;
 345
 346         spin_lock_irqsave(&emu->emu_lock, flags);
 347         enable = inl(emu->port + INTE) & ~intrenb;
 348         outl(enable, emu->port + INTE);
 349         spin_unlock_irqrestore(&emu->emu_lock, flags);
 350 }
 351
 352
 353 static void snd_ca0106_pcm_free_substream(snd_pcm_runtime_t *runtime)
 354 {
 355         kfree(runtime->private_data);
 356 }
 357
 358 /* open_playback callback */
 359 static int snd_ca0106_pcm_open_playback_channel(snd_pcm_substream_t *substream, int channel_id)
 360 {
 361         ca0106_t *chip = snd_pcm_substream_chip(substream);
 362         ca0106_channel_t *channel = &(chip->playback_channels[channel_id]);
 363         ca0106_pcm_t *epcm;
 364         snd_pcm_runtime_t *runtime = substream->runtime;
 365         int err;
 366
 367         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 368
 369         if (epcm == NULL)
 370                 return -ENOMEM;
 371         epcm->emu = chip;
 372         epcm->substream = substream;
 373         epcm->channel_id=channel_id;
 374
 375         runtime->private_data = epcm;
 376         runtime->private_free = snd_ca0106_pcm_free_substream;
 377
 378         runtime->hw = snd_ca0106_playback_hw;
 379
 380         channel->emu = chip;
 381         channel->number = channel_id;
 382
 383         channel->use=1;
 384         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
 385         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 386         channel->epcm=epcm;
 387         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 388                 return err;
 389         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 390                 return err;
 391         return 0;
 392 }
 393
 394 /* close callback */
 395 static int snd_ca0106_pcm_close_playback(snd_pcm_substream_t *substream)
 396 {
 397         ca0106_t *chip = snd_pcm_substream_chip(substream);
 398         snd_pcm_runtime_t *runtime = substream->runtime;
 399         ca0106_pcm_t *epcm = runtime->private_data;
 400         chip->playback_channels[epcm->channel_id].use=0;
 401 /* FIXME: maybe zero others */
 402         return 0;
 403 }
 404
 405 static int snd_ca0106_pcm_open_playback_front(snd_pcm_substream_t *substream)
 406 {
 407         return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
 408 }
 409
 410 static int snd_ca0106_pcm_open_playback_center_lfe(snd_pcm_substream_t *substream)
 411 {
 412         return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
 413 }
 414
 415 static int snd_ca0106_pcm_open_playback_unknown(snd_pcm_substream_t *substream)
 416 {
 417         return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
 418 }
 419
 420 static int snd_ca0106_pcm_open_playback_rear(snd_pcm_substream_t *substream)
 421 {
 422         return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
 423 }
 424
 425 /* open_capture callback */
 426 static int snd_ca0106_pcm_open_capture_channel(snd_pcm_substream_t *substream, int channel_id)
 427 {
 428         ca0106_t *chip = snd_pcm_substream_chip(substream);
 429         ca0106_channel_t *channel = &(chip->capture_channels[channel_id]);
 430         ca0106_pcm_t *epcm;
 431         snd_pcm_runtime_t *runtime = substream->runtime;
 432         int err;
 433
 434         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 435         if (epcm == NULL) {
 436                 snd_printk(KERN_ERR "open_capture_channel: failed epcm alloc\n");
 437                 return -ENOMEM;
 438         }
 439         epcm->emu = chip;
 440         epcm->substream = substream;
 441         epcm->channel_id=channel_id;
 442
 443         runtime->private_data = epcm;
 444         runtime->private_free = snd_ca0106_pcm_free_substream;
 445
 446         runtime->hw = snd_ca0106_capture_hw;
 447
 448         channel->emu = chip;
 449         channel->number = channel_id;
 450
 451         channel->use=1;
 452         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
 453         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 454         channel->epcm=epcm;
 455         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 456                 return err;
 457         //snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
 458         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 459                 return err;
 460         return 0;
 461 }
 462
 463 /* close callback */
 464 static int snd_ca0106_pcm_close_capture(snd_pcm_substream_t *substream)
 465 {
 466         ca0106_t *chip = snd_pcm_substream_chip(substream);
 467         snd_pcm_runtime_t *runtime = substream->runtime;
 468         ca0106_pcm_t *epcm = runtime->private_data;
 469         chip->capture_channels[epcm->channel_id].use=0;
 470 /* FIXME: maybe zero others */
 471         return 0;
 472 }
 473
 474 static int snd_ca0106_pcm_open_0_capture(snd_pcm_substream_t *substream)
 475 {
 476         return snd_ca0106_pcm_open_capture_channel(substream, 0);
 477 }
 478
 479 static int snd_ca0106_pcm_open_1_capture(snd_pcm_substream_t *substream)
 480 {
 481         return snd_ca0106_pcm_open_capture_channel(substream, 1);
 482 }
 483
 484 static int snd_ca0106_pcm_open_2_capture(snd_pcm_substream_t *substream)
 485 {
 486         return snd_ca0106_pcm_open_capture_channel(substream, 2);
 487 }
 488
 489 static int snd_ca0106_pcm_open_3_capture(snd_pcm_substream_t *substream)
 490 {
 491         return snd_ca0106_pcm_open_capture_channel(substream, 3);
 492 }
 493
 494 /* hw_params callback */
 495 static int snd_ca0106_pcm_hw_params_playback(snd_pcm_substream_t *substream,
 496                                       snd_pcm_hw_params_t * hw_params)
 497 {
 498         return snd_pcm_lib_malloc_pages(substream,
 499                                         params_buffer_bytes(hw_params));
 500 }
 501
 502 /* hw_free callback */
 503 static int snd_ca0106_pcm_hw_free_playback(snd_pcm_substream_t *substream)
 504 {
 505         return snd_pcm_lib_free_pages(substream);
 506 }
 507
 508 /* hw_params callback */
 509 static int snd_ca0106_pcm_hw_params_capture(snd_pcm_substream_t *substream,
 510                                       snd_pcm_hw_params_t * hw_params)
 511 {
 512         return snd_pcm_lib_malloc_pages(substream,
 513                                         params_buffer_bytes(hw_params));
 514 }
 515
 516 /* hw_free callback */
 517 static int snd_ca0106_pcm_hw_free_capture(snd_pcm_substream_t *substream)
 518 {
 519         return snd_pcm_lib_free_pages(substream);
 520 }
 521
 522 /* prepare playback callback */
 523 static int snd_ca0106_pcm_prepare_playback(snd_pcm_substream_t *substream)
 524 {
 525         ca0106_t *emu = snd_pcm_substream_chip(substream);
 526         snd_pcm_runtime_t *runtime = substream->runtime;
 527         ca0106_pcm_t *epcm = runtime->private_data;
 528         int channel = epcm->channel_id;
 529         u32 *table_base = (u32 *)(emu->buffer.area+(8*16*channel));
 530         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
 531         u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
 532         u32 hcfg_set = 0x00000000;
 533         u32 hcfg;
 534         u32 reg40_mask = 0x30000 << (channel<<1);
 535         u32 reg40_set = 0;
 536         u32 reg40;
 537         /* FIXME: Depending on mixer selection of SPDIF out or not, select the spdif rate or the DAC rate. */
 538         u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
 539         u32 reg71_set = 0;
 540         u32 reg71;
 541         int i;
 542
 543         //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));
 544         //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
 545         //snd_printk("dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 546         /* Rate can be set per channel. */
 547         /* reg40 control host to fifo */
 548         /* reg71 controls DAC rate. */
 549         switch (runtime->rate) {
 550         case 44100:
 551                 reg40_set = 0x10000 << (channel<<1);
 552                 reg71_set = 0x01010000;
 553                 break;
 554         case 48000:
 555                 reg40_set = 0;
 556                 reg71_set = 0;
 557                 break;
 558         case 96000:
 559                 reg40_set = 0x20000 << (channel<<1);
 560                 reg71_set = 0x02020000;
 561                 break;
 562         case 192000:
 563                 reg40_set = 0x30000 << (channel<<1);
 564                 reg71_set = 0x03030000;
 565                 break;
 566         default:
 567                 reg40_set = 0;
 568                 reg71_set = 0;
 569                 break;
 570         }
 571         /* Format is a global setting */
 572         /* FIXME: Only let the first channel accessed set this. */
 573         switch (runtime->format) {
 574         case SNDRV_PCM_FORMAT_S16_LE:
 575                 hcfg_set = 0;
 576                 break;
 577         case SNDRV_PCM_FORMAT_S32_LE:
 578                 hcfg_set = HCFG_PLAYBACK_S32_LE;
 579                 break;
 580         default:
 581                 hcfg_set = 0;
 582                 break;
 583         }
 584         hcfg = inl(emu->port + HCFG) ;
 585         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 586         outl(hcfg, emu->port + HCFG);
 587         reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
 588         reg40 = (reg40 & ~reg40_mask) | reg40_set;
 589         snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
 590         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 591         reg71 = (reg71 & ~reg71_mask) | reg71_set;
 592         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 593
 594         /* FIXME: Check emu->buffer.size before actually writing to it. */
 595         for(i=0; i < runtime->periods; i++) {
 596                 table_base[i*2]=runtime->dma_addr+(i*period_size_bytes);
 597                 table_base[(i*2)+1]=period_size_bytes<<16;
 598         }
 599
 600         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
 601         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
 602         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
 603         snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
 604         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
 605         /* FIXME  test what 0 bytes does. */
 606         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
 607         snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
 608         snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
 609         snd_ca0106_ptr_write(emu, 0x08, channel, 0);
 610         snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
 611 #if 0
 612         snd_ca0106_ptr_write(emu, SPCS0, 0,
 613                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
 614                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
 615                                SPCS_GENERATIONSTATUS | 0x00001200 |
 616                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
 617         }
 618 #endif
 619
 620         return 0;
 621 }
 622
 623 /* prepare capture callback */
 624 static int snd_ca0106_pcm_prepare_capture(snd_pcm_substream_t *substream)
 625 {
 626         ca0106_t *emu = snd_pcm_substream_chip(substream);
 627         snd_pcm_runtime_t *runtime = substream->runtime;
 628         ca0106_pcm_t *epcm = runtime->private_data;
 629         int channel = epcm->channel_id;
 630         u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
 631         u32 hcfg_set = 0x00000000;
 632         u32 hcfg;
 633         u32 over_sampling=0x2;
 634         u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
 635         u32 reg71_set = 0;
 636         u32 reg71;
 637
 638         //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));
 639         //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
 640         //snd_printk("dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 641         /* reg71 controls ADC rate. */
 642         switch (runtime->rate) {
 643         case 44100:
 644                 reg71_set = 0x00004000;
 645                 break;
 646         case 48000:
 647                 reg71_set = 0;
 648                 break;
 649         case 96000:
 650                 reg71_set = 0x00008000;
 651                 over_sampling=0xa;
 652                 break;
 653         case 192000:
 654                 reg71_set = 0x0000c000;
 655                 over_sampling=0xa;
 656                 break;
 657         default:
 658                 reg71_set = 0;
 659                 break;
 660         }
 661         /* Format is a global setting */
 662         /* FIXME: Only let the first channel accessed set this. */
 663         switch (runtime->format) {
 664         case SNDRV_PCM_FORMAT_S16_LE:
 665                 hcfg_set = 0;
 666                 break;
 667         case SNDRV_PCM_FORMAT_S32_LE:
 668                 hcfg_set = HCFG_CAPTURE_S32_LE;
 669                 break;
 670         default:
 671                 hcfg_set = 0;
 672                 break;
 673         }
 674         hcfg = inl(emu->port + HCFG) ;
 675         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 676         outl(hcfg, emu->port + HCFG);
 677         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 678         reg71 = (reg71 & ~reg71_mask) | reg71_set;
 679         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 680         if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
 681                 snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
 682         }
 683
 684
 685         //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));
 686         snd_ca0106_ptr_write(emu, 0x13, channel, 0);
 687         snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
 688         snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
 689         snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
 690
 691         return 0;
 692 }
 693
 694 /* trigger_playback callback */
 695 static int snd_ca0106_pcm_trigger_playback(snd_pcm_substream_t *substream,
 696                                     int cmd)
 697 {
 698         ca0106_t *emu = snd_pcm_substream_chip(substream);
 699         snd_pcm_runtime_t *runtime;
 700         ca0106_pcm_t *epcm;
 701         int channel;
 702         int result = 0;
 703         struct list_head *pos;
 704         snd_pcm_substream_t *s;
 705         u32 basic = 0;
 706         u32 extended = 0;
 707         int running=0;
 708
 709         switch (cmd) {
 710         case SNDRV_PCM_TRIGGER_START:
 711                 running=1;
 712                 break;
 713         case SNDRV_PCM_TRIGGER_STOP:
 714         default:
 715                 running=0;
 716                 break;
 717         }
 718         snd_pcm_group_for_each(pos, substream) {
 719                 s = snd_pcm_group_substream_entry(pos);
 720                 runtime = s->runtime;
 721                 epcm = runtime->private_data;
 722                 channel = epcm->channel_id;
 723                 //snd_printk("channel=%d\n",channel);
 724                 epcm->running = running;
 725                 basic |= (0x1<<channel);
 726                 extended |= (0x10<<channel);
 727                 snd_pcm_trigger_done(s, substream);
 728         }
 729         //snd_printk("basic=0x%x, extended=0x%x\n",basic, extended);
 730
 731         switch (cmd) {
 732         case SNDRV_PCM_TRIGGER_START:
 733                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (extended));
 734                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(basic));
 735                 break;
 736         case SNDRV_PCM_TRIGGER_STOP:
 737                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(basic));
 738                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(extended));
 739                 break;
 740         default:
 741                 result = -EINVAL;
 742                 break;
 743         }
 744         return result;
 745 }
 746
 747 /* trigger_capture callback */
 748 static int snd_ca0106_pcm_trigger_capture(snd_pcm_substream_t *substream,
 749                                     int cmd)
 750 {
 751         ca0106_t *emu = snd_pcm_substream_chip(substream);
 752         snd_pcm_runtime_t *runtime = substream->runtime;
 753         ca0106_pcm_t *epcm = runtime->private_data;
 754         int channel = epcm->channel_id;
 755         int result = 0;
 756
 757         switch (cmd) {
 758         case SNDRV_PCM_TRIGGER_START:
 759                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
 760                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
 761                 epcm->running = 1;
 762                 break;
 763         case SNDRV_PCM_TRIGGER_STOP:
 764                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
 765                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
 766                 epcm->running = 0;
 767                 break;
 768         default:
 769                 result = -EINVAL;
 770                 break;
 771         }
 772         return result;
 773 }
 774
 775 /* pointer_playback callback */
 776 static snd_pcm_uframes_t
 777 snd_ca0106_pcm_pointer_playback(snd_pcm_substream_t *substream)
 778 {
 779         ca0106_t *emu = snd_pcm_substream_chip(substream);
 780         snd_pcm_runtime_t *runtime = substream->runtime;
 781         ca0106_pcm_t *epcm = runtime->private_data;
 782         snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
 783         int channel = epcm->channel_id;
 784
 785         if (!epcm->running)
 786                 return 0;
 787
 788         ptr3 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
 789         ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
 790         ptr4 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
 791         if (ptr3 != ptr4) ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
 792         ptr2 = bytes_to_frames(runtime, ptr1);
 793         ptr2+= (ptr4 >> 3) * runtime->period_size;
 794         ptr=ptr2;
 795         if (ptr >= runtime->buffer_size)
 796                 ptr -= runtime->buffer_size;
 797         //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);
 798
 799         return ptr;
 800 }
 801
 802 /* pointer_capture callback */
 803 static snd_pcm_uframes_t
 804 snd_ca0106_pcm_pointer_capture(snd_pcm_substream_t *substream)
 805 {
 806         ca0106_t *emu = snd_pcm_substream_chip(substream);
 807         snd_pcm_runtime_t *runtime = substream->runtime;
 808         ca0106_pcm_t *epcm = runtime->private_data;
 809         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
 810         int channel = channel=epcm->channel_id;
 811
 812         if (!epcm->running)
 813                 return 0;
 814
 815         ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
 816         ptr2 = bytes_to_frames(runtime, ptr1);
 817         ptr=ptr2;
 818         if (ptr >= runtime->buffer_size)
 819                 ptr -= runtime->buffer_size;
 820         //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);
 821
 822         return ptr;
 823 }
 824
 825 /* operators */
 826 static snd_pcm_ops_t snd_ca0106_playback_front_ops = {
 827         .open =        snd_ca0106_pcm_open_playback_front,
 828         .close =       snd_ca0106_pcm_close_playback,
 829         .ioctl =       snd_pcm_lib_ioctl,
 830         .hw_params =   snd_ca0106_pcm_hw_params_playback,
 831         .hw_free =     snd_ca0106_pcm_hw_free_playback,
 832         .prepare =     snd_ca0106_pcm_prepare_playback,
 833         .trigger =     snd_ca0106_pcm_trigger_playback,
 834         .pointer =     snd_ca0106_pcm_pointer_playback,
 835 };
 836
 837 static snd_pcm_ops_t snd_ca0106_capture_0_ops = {
 838         .open =        snd_ca0106_pcm_open_0_capture,
 839         .close =       snd_ca0106_pcm_close_capture,
 840         .ioctl =       snd_pcm_lib_ioctl,
 841         .hw_params =   snd_ca0106_pcm_hw_params_capture,
 842         .hw_free =     snd_ca0106_pcm_hw_free_capture,
 843         .prepare =     snd_ca0106_pcm_prepare_capture,
 844         .trigger =     snd_ca0106_pcm_trigger_capture,
 845         .pointer =     snd_ca0106_pcm_pointer_capture,
 846 };
 847
 848 static snd_pcm_ops_t snd_ca0106_capture_1_ops = {
 849         .open =        snd_ca0106_pcm_open_1_capture,
 850         .close =       snd_ca0106_pcm_close_capture,
 851         .ioctl =       snd_pcm_lib_ioctl,
 852         .hw_params =   snd_ca0106_pcm_hw_params_capture,
 853         .hw_free =     snd_ca0106_pcm_hw_free_capture,
 854         .prepare =     snd_ca0106_pcm_prepare_capture,
 855         .trigger =     snd_ca0106_pcm_trigger_capture,
 856         .pointer =     snd_ca0106_pcm_pointer_capture,
 857 };
 858
 859 static snd_pcm_ops_t snd_ca0106_capture_2_ops = {
 860         .open =        snd_ca0106_pcm_open_2_capture,
 861         .close =       snd_ca0106_pcm_close_capture,
 862         .ioctl =       snd_pcm_lib_ioctl,
 863         .hw_params =   snd_ca0106_pcm_hw_params_capture,
 864         .hw_free =     snd_ca0106_pcm_hw_free_capture,
 865         .prepare =     snd_ca0106_pcm_prepare_capture,
 866         .trigger =     snd_ca0106_pcm_trigger_capture,
 867         .pointer =     snd_ca0106_pcm_pointer_capture,
 868 };
 869
 870 static snd_pcm_ops_t snd_ca0106_capture_3_ops = {
 871         .open =        snd_ca0106_pcm_open_3_capture,
 872         .close =       snd_ca0106_pcm_close_capture,
 873         .ioctl =       snd_pcm_lib_ioctl,
 874         .hw_params =   snd_ca0106_pcm_hw_params_capture,
 875         .hw_free =     snd_ca0106_pcm_hw_free_capture,
 876         .prepare =     snd_ca0106_pcm_prepare_capture,
 877         .trigger =     snd_ca0106_pcm_trigger_capture,
 878         .pointer =     snd_ca0106_pcm_pointer_capture,
 879 };
 880
 881 static snd_pcm_ops_t snd_ca0106_playback_center_lfe_ops = {
 882         .open =         snd_ca0106_pcm_open_playback_center_lfe,
 883         .close =        snd_ca0106_pcm_close_playback,
 884         .ioctl =        snd_pcm_lib_ioctl,
 885         .hw_params =    snd_ca0106_pcm_hw_params_playback,
 886         .hw_free =      snd_ca0106_pcm_hw_free_playback,
 887         .prepare =      snd_ca0106_pcm_prepare_playback,
 888         .trigger =      snd_ca0106_pcm_trigger_playback,
 889         .pointer =      snd_ca0106_pcm_pointer_playback,
 890 };
 891
 892 static snd_pcm_ops_t snd_ca0106_playback_unknown_ops = {
 893         .open =         snd_ca0106_pcm_open_playback_unknown,
 894         .close =        snd_ca0106_pcm_close_playback,
 895         .ioctl =        snd_pcm_lib_ioctl,
 896         .hw_params =    snd_ca0106_pcm_hw_params_playback,
 897         .hw_free =      snd_ca0106_pcm_hw_free_playback,
 898         .prepare =      snd_ca0106_pcm_prepare_playback,
 899         .trigger =      snd_ca0106_pcm_trigger_playback,
 900         .pointer =      snd_ca0106_pcm_pointer_playback,
 901 };
 902
 903 static snd_pcm_ops_t snd_ca0106_playback_rear_ops = {
 904         .open =         snd_ca0106_pcm_open_playback_rear,
 905         .close =        snd_ca0106_pcm_close_playback,
 906         .ioctl =        snd_pcm_lib_ioctl,
 907         .hw_params =    snd_ca0106_pcm_hw_params_playback,
 908                 .hw_free =      snd_ca0106_pcm_hw_free_playback,
 909         .prepare =      snd_ca0106_pcm_prepare_playback,
 910         .trigger =      snd_ca0106_pcm_trigger_playback,
 911         .pointer =      snd_ca0106_pcm_pointer_playback,
 912 };
 913
 914
 915 static unsigned short snd_ca0106_ac97_read(ac97_t *ac97,
 916                                              unsigned short reg)
 917 {
 918         ca0106_t *emu = ac97->private_data;
 919         unsigned long flags;
 920         unsigned short val;
 921
 922         spin_lock_irqsave(&emu->emu_lock, flags);
 923         outb(reg, emu->port + AC97ADDRESS);
 924         val = inw(emu->port + AC97DATA);
 925         spin_unlock_irqrestore(&emu->emu_lock, flags);
 926         return val;
 927 }
 928
 929 static void snd_ca0106_ac97_write(ac97_t *ac97,
 930                                     unsigned short reg, unsigned short val)
 931 {
 932         ca0106_t *emu = ac97->private_data;
 933         unsigned long flags;
 934
 935         spin_lock_irqsave(&emu->emu_lock, flags);
 936         outb(reg, emu->port + AC97ADDRESS);
 937         outw(val, emu->port + AC97DATA);
 938         spin_unlock_irqrestore(&emu->emu_lock, flags);
 939 }
 940
 941 static int snd_ca0106_ac97(ca0106_t *chip)
 942 {
 943         ac97_bus_t *pbus;
 944         ac97_template_t ac97;
 945         int err;
 946         static ac97_bus_ops_t ops = {
 947                 .write = snd_ca0106_ac97_write,
 948                 .read = snd_ca0106_ac97_read,
 949         };
 950
 951         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
 952                 return err;
 953         pbus->no_vra = 1; /* we don't need VRA */
 954
 955         memset(&ac97, 0, sizeof(ac97));
 956         ac97.private_data = chip;
 957         ac97.scaps = AC97_SCAP_NO_SPDIF;
 958         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
 959 }
 960
 961 static int snd_ca0106_free(ca0106_t *chip)
 962 {
 963         if (chip->res_port != NULL) {    /* avoid access to already used hardware */
 964                 // disable interrupts
 965                 snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
 966                 outl(0, chip->port + INTE);
 967                 snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
 968                 udelay(1000);
 969                 // disable audio
 970                 //outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG);
 971                 outl(0, chip->port + HCFG);
 972                 /* FIXME: We need to stop and DMA transfers here.
 973                  *        But as I am not sure how yet, we cannot from the dma pages.
 974                  * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
 975                  */
 976         }
 977         // release the data
 978 #if 1
 979         if (chip->buffer.area)
 980                 snd_dma_free_pages(&chip->buffer);
 981 #endif
 982
 983         // release the i/o port
 984         release_and_free_resource(chip->res_port);
 985
 986         // release the irq
 987         if (chip->irq >= 0)
 988                 free_irq(chip->irq, (void *)chip);
 989         pci_disable_device(chip->pci);
 990         kfree(chip);
 991         return 0;
 992 }
 993
 994 static int snd_ca0106_dev_free(snd_device_t *device)
 995 {
 996         ca0106_t *chip = device->device_data;
 997         return snd_ca0106_free(chip);
 998 }
 999
1000 static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id,
1001                                           struct pt_regs *regs)
1002 {
1003         unsigned int status;
1004
1005         ca0106_t *chip = dev_id;
1006         int i;
1007         int mask;
1008         unsigned int stat76;
1009         ca0106_channel_t *pchannel;
1010
1011         spin_lock(&chip->emu_lock);
1012
1013         status = inl(chip->port + IPR);
1014
1015         // call updater, unlock before it
1016         spin_unlock(&chip->emu_lock);
1017
1018         if (! status)
1019                 return IRQ_NONE;
1020
1021         stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1022         //snd_printk("interrupt status = 0x%08x, stat76=0x%08x\n", status, stat76);
1023         //snd_printk("ptr=0x%08x\n",snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1024         mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1025         for(i = 0; i < 4; i++) {
1026                 pchannel = &(chip->playback_channels[i]);
1027                 if(stat76 & mask) {
1028 /* FIXME: Select the correct substream for period elapsed */
1029                         if(pchannel->use) {
1030                           snd_pcm_period_elapsed(pchannel->epcm->substream);
1031                         //printk(KERN_INFO "interrupt [%d] used\n", i);
1032                         }
1033                 }
1034                 //printk(KERN_INFO "channel=%p\n",pchannel);
1035                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1036                 mask <<= 1;
1037         }
1038         mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1039         for(i = 0; i < 4; i++) {
1040                 pchannel = &(chip->capture_channels[i]);
1041                 if(stat76 & mask) {
1042 /* FIXME: Select the correct substream for period elapsed */
1043                         if(pchannel->use) {
1044                           snd_pcm_period_elapsed(pchannel->epcm->substream);
1045                         //printk(KERN_INFO "interrupt [%d] used\n", i);
1046                         }
1047                 }
1048                 //printk(KERN_INFO "channel=%p\n",pchannel);
1049                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1050                 mask <<= 1;
1051         }
1052
1053         snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1054         spin_lock(&chip->emu_lock);
1055
1056         if (chip->midi.dev_id &&
1057           (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1058                 if (chip->midi.interrupt)
1059                         chip->midi.interrupt(&chip->midi, status);
1060                 else
1061                         chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1062         }
1063
1064         // acknowledge the interrupt if necessary
1065         outl(status, chip->port+IPR);
1066
1067         spin_unlock(&chip->emu_lock);
1068
1069         return IRQ_HANDLED;
1070 }
1071
1072 static void snd_ca0106_pcm_free(snd_pcm_t *pcm)
1073 {
1074         ca0106_t *emu = pcm->private_data;
1075         emu->pcm = NULL;
1076         snd_pcm_lib_preallocate_free_for_all(pcm);
1077 }
1078
1079 static int __devinit snd_ca0106_pcm(ca0106_t *emu, int device, snd_pcm_t **rpcm)
1080 {
1081         snd_pcm_t *pcm;
1082         snd_pcm_substream_t *substream;
1083         int err;
1084
1085         if (rpcm)
1086                 *rpcm = NULL;
1087         if ((err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm)) < 0)
1088                 return err;
1089
1090         pcm->private_data = emu;
1091         pcm->private_free = snd_ca0106_pcm_free;
1092
1093         switch (device) {
1094         case 0:
1095           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1096           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1097           break;
1098         case 1:
1099           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1100           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1101           break;
1102         case 2:
1103           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1104           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1105           break;
1106         case 3:
1107           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1108           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1109           break;
1110         }
1111
1112         pcm->info_flags = 0;
1113         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1114         strcpy(pcm->name, "CA0106");
1115         emu->pcm = pcm;
1116
1117         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
1118             substream;
1119             substream = substream->next) {
1120                 if ((err = snd_pcm_lib_preallocate_pages(substream,
1121                                                          SNDRV_DMA_TYPE_DEV,
1122                                                          snd_dma_pci_data(emu->pci),
1123                                                          64*1024, 64*1024)) < 0) /* FIXME: 32*1024 for sound buffer, between 32and64 for Periods table. */
1124                         return err;
1125         }
1126
1127         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
1128               substream;
1129               substream = substream->next) {
1130                 if ((err = snd_pcm_lib_preallocate_pages(substream,
1131                                                    SNDRV_DMA_TYPE_DEV,
1132                                                    snd_dma_pci_data(emu->pci),
1133                                                    64*1024, 64*1024)) < 0)
1134                         return err;
1135         }
1136
1137         if (rpcm)
1138                 *rpcm = pcm;
1139
1140         return 0;
1141 }
1142
1143 static int __devinit snd_ca0106_create(snd_card_t *card,
1144                                          struct pci_dev *pci,
1145                                          ca0106_t **rchip)
1146 {
1147         ca0106_t *chip;
1148         ca0106_details_t *c;
1149         int err;
1150         int ch;
1151         static snd_device_ops_t ops = {
1152                 .dev_free = snd_ca0106_dev_free,
1153         };
1154
1155         *rchip = NULL;
1156
1157         if ((err = pci_enable_device(pci)) < 0)
1158                 return err;
1159         if (pci_set_dma_mask(pci, DMA_32BIT_MASK) < 0 ||
1160             pci_set_consistent_dma_mask(pci, DMA_32BIT_MASK) < 0) {
1161                 printk(KERN_ERR "error to set 32bit mask DMA\n");
1162                 pci_disable_device(pci);
1163                 return -ENXIO;
1164         }
1165
1166         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1167         if (chip == NULL) {
1168                 pci_disable_device(pci);
1169                 return -ENOMEM;
1170         }
1171
1172         chip->card = card;
1173         chip->pci = pci;
1174         chip->irq = -1;
1175
1176         spin_lock_init(&chip->emu_lock);
1177
1178         chip->port = pci_resource_start(pci, 0);
1179         if ((chip->res_port = request_region(chip->port, 0x20,
1180                                              "snd_ca0106")) == NULL) {
1181                 snd_ca0106_free(chip);
1182                 printk(KERN_ERR "cannot allocate the port\n");
1183                 return -EBUSY;
1184         }
1185
1186         if (request_irq(pci->irq, snd_ca0106_interrupt,
1187                         SA_INTERRUPT|SA_SHIRQ, "snd_ca0106",
1188                         (void *)chip)) {
1189                 snd_ca0106_free(chip);
1190                 printk(KERN_ERR "cannot grab irq\n");
1191                 return -EBUSY;
1192         }
1193         chip->irq = pci->irq;
1194
1195         /* This stores the periods table. */
1196         if(snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci), 1024, &chip->buffer) < 0) {
1197                 snd_ca0106_free(chip);
1198                 return -ENOMEM;
1199         }
1200
1201         pci_set_master(pci);
1202         /* read revision & serial */
1203         pci_read_config_byte(pci, PCI_REVISION_ID, (char *)&chip->revision);
1204         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1205         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1206 #if 1
1207         printk(KERN_INFO "Model %04x Rev %08x Serial %08x\n", chip->model,
1208                chip->revision, chip->serial);
1209 #endif
1210         strcpy(card->driver, "CA0106");
1211         strcpy(card->shortname, "CA0106");
1212
1213         for (c=ca0106_chip_details; c->serial; c++) {
1214                 if (c->serial == chip->serial) break;
1215         }
1216         chip->details = c;
1217         sprintf(card->longname, "%s at 0x%lx irq %i",
1218                 c->name, chip->port, chip->irq);
1219
1220         outl(0, chip->port + INTE);
1221
1222         /*
1223          *  Init to 0x02109204 :
1224          *  Clock accuracy    = 0     (1000ppm)
1225          *  Sample Rate       = 2     (48kHz)
1226          *  Audio Channel     = 1     (Left of 2)
1227          *  Source Number     = 0     (Unspecified)
1228          *  Generation Status = 1     (Original for Cat Code 12)
1229          *  Cat Code          = 12    (Digital Signal Mixer)
1230          *  Mode              = 0     (Mode 0)
1231          *  Emphasis          = 0     (None)
1232          *  CP                = 1     (Copyright unasserted)
1233          *  AN                = 0     (Audio data)
1234          *  P                 = 0     (Consumer)
1235          */
1236         snd_ca0106_ptr_write(chip, SPCS0, 0,
1237                                 chip->spdif_bits[0] =
1238                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1239                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1240                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1241                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1242         /* Only SPCS1 has been tested */
1243         snd_ca0106_ptr_write(chip, SPCS1, 0,
1244                                 chip->spdif_bits[1] =
1245                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1246                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1247                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1248                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1249         snd_ca0106_ptr_write(chip, SPCS2, 0,
1250                                 chip->spdif_bits[2] =
1251                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1252                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1253                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1254                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1255         snd_ca0106_ptr_write(chip, SPCS3, 0,
1256                                 chip->spdif_bits[3] =
1257                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1258                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1259                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1260                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1261
1262         snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1263         snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1264
1265         /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1266         outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
1267         outw(0x8000, chip->port + AC97DATA);
1268 #if 0
1269         snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1270         snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1271         snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1272         snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1273 #endif
1274
1275         //snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); /* OSS drivers set this. */
1276         /* Analog or Digital output */
1277         snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1278         snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000); /* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers. Use 0x000f0000 for surround71 */
1279         chip->spdif_enable = 0; /* Set digital SPDIF output off */
1280         chip->capture_source = 3; /* Set CAPTURE_SOURCE */
1281         //snd_ca0106_ptr_write(chip, 0x45, 0, 0); /* Analogue out */
1282         //snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00); /* Digital out */
1283
1284         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000); /* goes to 0x40c80000 when doing SPDIF IN/OUT */
1285         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff); /* (Mute) CAPTURE feedback into PLAYBACK volume. Only lower 16 bits matter. */
1286         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000); /* SPDIF IN Volume */
1287         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000); /* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1288         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1289         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1290         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1291         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1292         for(ch = 0; ch < 4; ch++) {
1293                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030); /* Only high 16 bits matter */
1294                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1295                 //snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040); /* Mute */
1296                 //snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040); /* Mute */
1297                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff); /* Mute */
1298                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff); /* Mute */
1299         }
1300         snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4); /* Select MIC, Line in, TAD in, AUX in */
1301         chip->capture_source = 3; /* Set CAPTURE_SOURCE */
1302
1303         if (chip->details->gpio_type == 1) { /* The SB0410 and SB0413 use GPIO differently. */
1304                 /* FIXME: Still need to find out what the other GPIO bits do. E.g. For digital spdif out. */
1305                 outl(0x0, chip->port+GPIO);
1306                 //outl(0x00f0e000, chip->port+GPIO); /* Analog */
1307                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1308         } else {
1309                 outl(0x0, chip->port+GPIO);
1310                 outl(0x005f03a3, chip->port+GPIO); /* Analog */
1311                 //outl(0x005f02a2, chip->port+GPIO);   /* SPDIF */
1312         }
1313         snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1314
1315         //outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG);
1316         //outl(0x00001409, chip->port+HCFG); /* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1317         //outl(0x00000009, chip->port+HCFG);
1318         outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG); /* AC97 2.0, Enable outputs. */
1319
1320         if (chip->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
1321                 snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); /* Enable Line-in capture. MIC in currently untested. */
1322         }
1323
1324         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
1325                                   chip, &ops)) < 0) {
1326                 snd_ca0106_free(chip);
1327                 return err;
1328         }
1329         *rchip = chip;
1330         return 0;
1331 }
1332
1333
1334 static void ca0106_midi_interrupt_enable(ca_midi_t *midi, int intr)
1335 {
1336         snd_ca0106_intr_enable((ca0106_t *)(midi->dev_id), intr);
1337 }
1338
1339 static void ca0106_midi_interrupt_disable(ca_midi_t *midi, int intr)
1340 {
1341         snd_ca0106_intr_disable((ca0106_t *)(midi->dev_id), intr);
1342 }
1343
1344 static unsigned char ca0106_midi_read(ca_midi_t *midi, int idx)
1345 {
1346         return (unsigned char)snd_ca0106_ptr_read((ca0106_t *)(midi->dev_id), midi->port + idx, 0);
1347 }
1348
1349 static void ca0106_midi_write(ca_midi_t *midi, int data, int idx)
1350 {
1351         snd_ca0106_ptr_write((ca0106_t *)(midi->dev_id), midi->port + idx, 0, data);
1352 }
1353
1354 static snd_card_t *ca0106_dev_id_card(void *dev_id)
1355 {
1356         return ((ca0106_t *)dev_id)->card;
1357 }
1358
1359 static int ca0106_dev_id_port(void *dev_id)
1360 {
1361         return ((ca0106_t *)dev_id)->port;
1362 }
1363
1364 static int __devinit snd_ca0106_midi(ca0106_t *chip, unsigned int channel)
1365 {
1366         ca_midi_t *midi;
1367         char *name;
1368         int err;
1369
1370         if(channel==CA0106_MIDI_CHAN_B) {
1371                 name = "CA0106 MPU-401 (UART) B";
1372                 midi =  &chip->midi2;
1373                 midi->tx_enable = INTE_MIDI_TX_B;
1374                 midi->rx_enable = INTE_MIDI_RX_B;
1375                 midi->ipr_tx = IPR_MIDI_TX_B;
1376                 midi->ipr_rx = IPR_MIDI_RX_B;
1377                 midi->port = MIDI_UART_B_DATA;
1378         } else {
1379                 name = "CA0106 MPU-401 (UART)";
1380                 midi =  &chip->midi;
1381                 midi->tx_enable = INTE_MIDI_TX_A;
1382                 midi->rx_enable = INTE_MIDI_TX_B;
1383                 midi->ipr_tx = IPR_MIDI_TX_A;
1384                 midi->ipr_rx = IPR_MIDI_RX_A;
1385                 midi->port = MIDI_UART_A_DATA;
1386         }
1387
1388         midi->reset = CA0106_MPU401_RESET;
1389         midi->enter_uart = CA0106_MPU401_ENTER_UART;
1390         midi->ack = CA0106_MPU401_ACK;
1391
1392         midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1393         midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1394
1395         midi->channel = channel;
1396
1397         midi->interrupt_enable = ca0106_midi_interrupt_enable;
1398         midi->interrupt_disable = ca0106_midi_interrupt_disable;
1399
1400         midi->read = ca0106_midi_read;
1401         midi->write = ca0106_midi_write;
1402
1403         midi->get_dev_id_card = ca0106_dev_id_card;
1404         midi->get_dev_id_port = ca0106_dev_id_port;
1405
1406         midi->dev_id = chip;
1407
1408         if ((err = ca_midi_init(chip, midi, 0, name)) < 0)
1409                 return err;
1410
1411         return 0;
1412 }
1413
1414
1415 static int __devinit snd_ca0106_probe(struct pci_dev *pci,
1416                                         const struct pci_device_id *pci_id)
1417 {
1418         static int dev;
1419         snd_card_t *card;
1420         ca0106_t *chip;
1421         int err;
1422
1423         if (dev >= SNDRV_CARDS)
1424                 return -ENODEV;
1425         if (!enable[dev]) {
1426                 dev++;
1427                 return -ENOENT;
1428         }
1429
1430         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
1431         if (card == NULL)
1432                 return -ENOMEM;
1433
1434         if ((err = snd_ca0106_create(card, pci, &chip)) < 0) {
1435                 snd_card_free(card);
1436                 return err;
1437         }
1438
1439         if ((err = snd_ca0106_pcm(chip, 0, NULL)) < 0) {
1440                 snd_card_free(card);
1441                 return err;
1442         }
1443         if ((err = snd_ca0106_pcm(chip, 1, NULL)) < 0) {
1444                 snd_card_free(card);
1445                 return err;
1446         }
1447         if ((err = snd_ca0106_pcm(chip, 2, NULL)) < 0) {
1448                 snd_card_free(card);
1449                 return err;
1450         }
1451         if ((err = snd_ca0106_pcm(chip, 3, NULL)) < 0) {
1452                 snd_card_free(card);
1453                 return err;
1454         }
1455         if (chip->details->ac97 == 1) { /* The SB0410 and SB0413 do not have an AC97 chip. */
1456                 if ((err = snd_ca0106_ac97(chip)) < 0) {
1457                         snd_card_free(card);
1458                         return err;
1459                 }
1460         }
1461         if ((err = snd_ca0106_mixer(chip)) < 0) {
1462                 snd_card_free(card);
1463                 return err;
1464         }
1465
1466         snd_printdd("ca0106: probe for MIDI channel A ...");
1467         if ((err = snd_ca0106_midi(chip,CA0106_MIDI_CHAN_A)) < 0) {
1468                 snd_card_free(card);
1469                 snd_printdd(" failed, err=0x%x\n",err);
1470                 return err;
1471         }
1472         snd_printdd(" done.\n");
1473
1474         snd_ca0106_proc_init(chip);
1475
1476         if ((err = snd_card_register(card)) < 0) {
1477                 snd_card_free(card);
1478                 return err;
1479         }
1480
1481         pci_set_drvdata(pci, card);
1482         dev++;
1483         return 0;
1484 }
1485
1486 static void __devexit snd_ca0106_remove(struct pci_dev *pci)
1487 {
1488         snd_card_free(pci_get_drvdata(pci));
1489         pci_set_drvdata(pci, NULL);
1490 }
1491
1492 // PCI IDs
1493 static struct pci_device_id snd_ca0106_ids[] = {
1494         { 0x1102, 0x0007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },    /* Audigy LS or Live 24bit */
1495         { 0, }
1496 };
1497 MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1498
1499 // pci_driver definition
1500 static struct pci_driver driver = {
1501         .name = "CA0106",
1502         .id_table = snd_ca0106_ids,
1503         .probe = snd_ca0106_probe,
1504         .remove = __devexit_p(snd_ca0106_remove),
1505 };
1506
1507 // initialization of the module
1508 static int __init alsa_card_ca0106_init(void)
1509 {
1510         int err;
1511
1512         if ((err = pci_register_driver(&driver)) > 0)
1513                 return err;
1514
1515         return 0;
1516 }
1517
1518 // clean up the module
1519 static void __exit alsa_card_ca0106_exit(void)
1520 {
1521         pci_unregister_driver(&driver);
1522 }
1523
1524 module_init(alsa_card_ca0106_init)
1525 module_exit(alsa_card_ca0106_exit)