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