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("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("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_pcm_free_substream(snd_pcm_runtime_t *runtime)
 342 {
 343         kfree(runtime->private_data);
 344 }
 345
 346 /* open_playback callback */
 347 static int snd_ca0106_pcm_open_playback_channel(snd_pcm_substream_t *substream, int channel_id)
 348 {
 349         ca0106_t *chip = snd_pcm_substream_chip(substream);
 350         ca0106_channel_t *channel = &(chip->playback_channels[channel_id]);
 351         ca0106_pcm_t *epcm;
 352         snd_pcm_runtime_t *runtime = substream->runtime;
 353         int err;
 354
 355         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 356
 357         if (epcm == NULL)
 358                 return -ENOMEM;
 359         epcm->emu = chip;
 360         epcm->substream = substream;
 361         epcm->channel_id=channel_id;
 362
 363         runtime->private_data = epcm;
 364         runtime->private_free = snd_ca0106_pcm_free_substream;
 365
 366         runtime->hw = snd_ca0106_playback_hw;
 367
 368         channel->emu = chip;
 369         channel->number = channel_id;
 370
 371         channel->use=1;
 372         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
 373         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 374         channel->epcm=epcm;
 375         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 376                 return err;
 377         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 378                 return err;
 379         return 0;
 380 }
 381
 382 /* close callback */
 383 static int snd_ca0106_pcm_close_playback(snd_pcm_substream_t *substream)
 384 {
 385         ca0106_t *chip = snd_pcm_substream_chip(substream);
 386         snd_pcm_runtime_t *runtime = substream->runtime;
 387         ca0106_pcm_t *epcm = runtime->private_data;
 388         chip->playback_channels[epcm->channel_id].use=0;
 389 /* FIXME: maybe zero others */
 390         return 0;
 391 }
 392
 393 static int snd_ca0106_pcm_open_playback_front(snd_pcm_substream_t *substream)
 394 {
 395         return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
 396 }
 397
 398 static int snd_ca0106_pcm_open_playback_center_lfe(snd_pcm_substream_t *substream)
 399 {
 400         return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
 401 }
 402
 403 static int snd_ca0106_pcm_open_playback_unknown(snd_pcm_substream_t *substream)
 404 {
 405         return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
 406 }
 407
 408 static int snd_ca0106_pcm_open_playback_rear(snd_pcm_substream_t *substream)
 409 {
 410         return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
 411 }
 412
 413 /* open_capture callback */
 414 static int snd_ca0106_pcm_open_capture_channel(snd_pcm_substream_t *substream, int channel_id)
 415 {
 416         ca0106_t *chip = snd_pcm_substream_chip(substream);
 417         ca0106_channel_t *channel = &(chip->capture_channels[channel_id]);
 418         ca0106_pcm_t *epcm;
 419         snd_pcm_runtime_t *runtime = substream->runtime;
 420         int err;
 421
 422         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 423         if (epcm == NULL) {
 424                 snd_printk("open_capture_channel: failed epcm alloc\n");
 425                 return -ENOMEM;
 426         }
 427         epcm->emu = chip;
 428         epcm->substream = substream;
 429         epcm->channel_id=channel_id;
 430
 431         runtime->private_data = epcm;
 432         runtime->private_free = snd_ca0106_pcm_free_substream;
 433
 434         runtime->hw = snd_ca0106_capture_hw;
 435
 436         channel->emu = chip;
 437         channel->number = channel_id;
 438
 439         channel->use=1;
 440         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
 441         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 442         channel->epcm=epcm;
 443         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 444                 return err;
 445         //snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
 446         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 447                 return err;
 448         return 0;
 449 }
 450
 451 /* close callback */
 452 static int snd_ca0106_pcm_close_capture(snd_pcm_substream_t *substream)
 453 {
 454         ca0106_t *chip = snd_pcm_substream_chip(substream);
 455         snd_pcm_runtime_t *runtime = substream->runtime;
 456         ca0106_pcm_t *epcm = runtime->private_data;
 457         chip->capture_channels[epcm->channel_id].use=0;
 458 /* FIXME: maybe zero others */
 459         return 0;
 460 }
 461
 462 static int snd_ca0106_pcm_open_0_capture(snd_pcm_substream_t *substream)
 463 {
 464         return snd_ca0106_pcm_open_capture_channel(substream, 0);
 465 }
 466
 467 static int snd_ca0106_pcm_open_1_capture(snd_pcm_substream_t *substream)
 468 {
 469         return snd_ca0106_pcm_open_capture_channel(substream, 1);
 470 }
 471
 472 static int snd_ca0106_pcm_open_2_capture(snd_pcm_substream_t *substream)
 473 {
 474         return snd_ca0106_pcm_open_capture_channel(substream, 2);
 475 }
 476
 477 static int snd_ca0106_pcm_open_3_capture(snd_pcm_substream_t *substream)
 478 {
 479         return snd_ca0106_pcm_open_capture_channel(substream, 3);
 480 }
 481
 482 /* hw_params callback */
 483 static int snd_ca0106_pcm_hw_params_playback(snd_pcm_substream_t *substream,
 484                                       snd_pcm_hw_params_t * hw_params)
 485 {
 486         return snd_pcm_lib_malloc_pages(substream,
 487                                         params_buffer_bytes(hw_params));
 488 }
 489
 490 /* hw_free callback */
 491 static int snd_ca0106_pcm_hw_free_playback(snd_pcm_substream_t *substream)
 492 {
 493         return snd_pcm_lib_free_pages(substream);
 494 }
 495
 496 /* hw_params callback */
 497 static int snd_ca0106_pcm_hw_params_capture(snd_pcm_substream_t *substream,
 498                                       snd_pcm_hw_params_t * hw_params)
 499 {
 500         return snd_pcm_lib_malloc_pages(substream,
 501                                         params_buffer_bytes(hw_params));
 502 }
 503
 504 /* hw_free callback */
 505 static int snd_ca0106_pcm_hw_free_capture(snd_pcm_substream_t *substream)
 506 {
 507         return snd_pcm_lib_free_pages(substream);
 508 }
 509
 510 /* prepare playback callback */
 511 static int snd_ca0106_pcm_prepare_playback(snd_pcm_substream_t *substream)
 512 {
 513         ca0106_t *emu = snd_pcm_substream_chip(substream);
 514         snd_pcm_runtime_t *runtime = substream->runtime;
 515         ca0106_pcm_t *epcm = runtime->private_data;
 516         int channel = epcm->channel_id;
 517         u32 *table_base = (u32 *)(emu->buffer.area+(8*16*channel));
 518         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
 519         u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
 520         u32 hcfg_set = 0x00000000;
 521         u32 hcfg;
 522         u32 reg40_mask = 0x30000 << (channel<<1);
 523         u32 reg40_set = 0;
 524         u32 reg40;
 525         /* FIXME: Depending on mixer selection of SPDIF out or not, select the spdif rate or the DAC rate. */
 526         u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
 527         u32 reg71_set = 0;
 528         u32 reg71;
 529         int i;
 530
 531         //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));
 532         //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
 533         //snd_printk("dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 534         /* Rate can be set per channel. */
 535         /* reg40 control host to fifo */
 536         /* reg71 controls DAC rate. */
 537         switch (runtime->rate) {
 538         case 44100:
 539                 reg40_set = 0x10000 << (channel<<1);
 540                 reg71_set = 0x01010000;
 541                 break;
 542         case 48000:
 543                 reg40_set = 0;
 544                 reg71_set = 0;
 545                 break;
 546         case 96000:
 547                 reg40_set = 0x20000 << (channel<<1);
 548                 reg71_set = 0x02020000;
 549                 break;
 550         case 192000:
 551                 reg40_set = 0x30000 << (channel<<1);
 552                 reg71_set = 0x03030000;
 553                 break;
 554         default:
 555                 reg40_set = 0;
 556                 reg71_set = 0;
 557                 break;
 558         }
 559         /* Format is a global setting */
 560         /* FIXME: Only let the first channel accessed set this. */
 561         switch (runtime->format) {
 562         case SNDRV_PCM_FORMAT_S16_LE:
 563                 hcfg_set = 0;
 564                 break;
 565         case SNDRV_PCM_FORMAT_S32_LE:
 566                 hcfg_set = HCFG_PLAYBACK_S32_LE;
 567                 break;
 568         default:
 569                 hcfg_set = 0;
 570                 break;
 571         }
 572         hcfg = inl(emu->port + HCFG) ;
 573         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 574         outl(hcfg, emu->port + HCFG);
 575         reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
 576         reg40 = (reg40 & ~reg40_mask) | reg40_set;
 577         snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
 578         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 579         reg71 = (reg71 & ~reg71_mask) | reg71_set;
 580         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 581
 582         /* FIXME: Check emu->buffer.size before actually writing to it. */
 583         for(i=0; i < runtime->periods; i++) {
 584                 table_base[i*2]=runtime->dma_addr+(i*period_size_bytes);
 585                 table_base[(i*2)+1]=period_size_bytes<<16;
 586         }
 587
 588         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
 589         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
 590         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
 591         snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
 592         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
 593         /* FIXME  test what 0 bytes does. */
 594         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
 595         snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
 596         snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
 597         snd_ca0106_ptr_write(emu, 0x08, channel, 0);
 598         snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
 599 #if 0
 600         snd_ca0106_ptr_write(emu, SPCS0, 0,
 601                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
 602                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
 603                                SPCS_GENERATIONSTATUS | 0x00001200 |
 604                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
 605         }
 606 #endif
 607
 608         return 0;
 609 }
 610
 611 /* prepare capture callback */
 612 static int snd_ca0106_pcm_prepare_capture(snd_pcm_substream_t *substream)
 613 {
 614         ca0106_t *emu = snd_pcm_substream_chip(substream);
 615         snd_pcm_runtime_t *runtime = substream->runtime;
 616         ca0106_pcm_t *epcm = runtime->private_data;
 617         int channel = epcm->channel_id;
 618         u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
 619         u32 hcfg_set = 0x00000000;
 620         u32 hcfg;
 621         u32 over_sampling=0x2;
 622         u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
 623         u32 reg71_set = 0;
 624         u32 reg71;
 625
 626         //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));
 627         //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
 628         //snd_printk("dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 629         /* reg71 controls ADC rate. */
 630         switch (runtime->rate) {
 631         case 44100:
 632                 reg71_set = 0x00004000;
 633                 break;
 634         case 48000:
 635                 reg71_set = 0;
 636                 break;
 637         case 96000:
 638                 reg71_set = 0x00008000;
 639                 over_sampling=0xa;
 640                 break;
 641         case 192000:
 642                 reg71_set = 0x0000c000;
 643                 over_sampling=0xa;
 644                 break;
 645         default:
 646                 reg71_set = 0;
 647                 break;
 648         }
 649         /* Format is a global setting */
 650         /* FIXME: Only let the first channel accessed set this. */
 651         switch (runtime->format) {
 652         case SNDRV_PCM_FORMAT_S16_LE:
 653                 hcfg_set = 0;
 654                 break;
 655         case SNDRV_PCM_FORMAT_S32_LE:
 656                 hcfg_set = HCFG_CAPTURE_S32_LE;
 657                 break;
 658         default:
 659                 hcfg_set = 0;
 660                 break;
 661         }
 662         hcfg = inl(emu->port + HCFG) ;
 663         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 664         outl(hcfg, emu->port + HCFG);
 665         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 666         reg71 = (reg71 & ~reg71_mask) | reg71_set;
 667         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 668         if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
 669                 snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
 670         }
 671
 672
 673         //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));
 674         snd_ca0106_ptr_write(emu, 0x13, channel, 0);
 675         snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
 676         snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
 677         snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
 678
 679         return 0;
 680 }
 681
 682 /* trigger_playback callback */
 683 static int snd_ca0106_pcm_trigger_playback(snd_pcm_substream_t *substream,
 684                                     int cmd)
 685 {
 686         ca0106_t *emu = snd_pcm_substream_chip(substream);
 687         snd_pcm_runtime_t *runtime;
 688         ca0106_pcm_t *epcm;
 689         int channel;
 690         int result = 0;
 691         struct list_head *pos;
 692         snd_pcm_substream_t *s;
 693         u32 basic = 0;
 694         u32 extended = 0;
 695         int running=0;
 696
 697         switch (cmd) {
 698         case SNDRV_PCM_TRIGGER_START:
 699                 running=1;
 700                 break;
 701         case SNDRV_PCM_TRIGGER_STOP:
 702         default:
 703                 running=0;
 704                 break;
 705         }
 706         snd_pcm_group_for_each(pos, substream) {
 707                 s = snd_pcm_group_substream_entry(pos);
 708                 runtime = s->runtime;
 709                 epcm = runtime->private_data;
 710                 channel = epcm->channel_id;
 711                 //snd_printk("channel=%d\n",channel);
 712                 epcm->running = running;
 713                 basic |= (0x1<<channel);
 714                 extended |= (0x10<<channel);
 715                 snd_pcm_trigger_done(s, substream);
 716         }
 717         //snd_printk("basic=0x%x, extended=0x%x\n",basic, extended);
 718
 719         switch (cmd) {
 720         case SNDRV_PCM_TRIGGER_START:
 721                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (extended));
 722                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(basic));
 723                 break;
 724         case SNDRV_PCM_TRIGGER_STOP:
 725                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(basic));
 726                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(extended));
 727                 break;
 728         default:
 729                 result = -EINVAL;
 730                 break;
 731         }
 732         return result;
 733 }
 734
 735 /* trigger_capture callback */
 736 static int snd_ca0106_pcm_trigger_capture(snd_pcm_substream_t *substream,
 737                                     int cmd)
 738 {
 739         ca0106_t *emu = snd_pcm_substream_chip(substream);
 740         snd_pcm_runtime_t *runtime = substream->runtime;
 741         ca0106_pcm_t *epcm = runtime->private_data;
 742         int channel = epcm->channel_id;
 743         int result = 0;
 744
 745         switch (cmd) {
 746         case SNDRV_PCM_TRIGGER_START:
 747                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
 748                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
 749                 epcm->running = 1;
 750                 break;
 751         case SNDRV_PCM_TRIGGER_STOP:
 752                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
 753                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
 754                 epcm->running = 0;
 755                 break;
 756         default:
 757                 result = -EINVAL;
 758                 break;
 759         }
 760         return result;
 761 }
 762
 763 /* pointer_playback callback */
 764 static snd_pcm_uframes_t
 765 snd_ca0106_pcm_pointer_playback(snd_pcm_substream_t *substream)
 766 {
 767         ca0106_t *emu = snd_pcm_substream_chip(substream);
 768         snd_pcm_runtime_t *runtime = substream->runtime;
 769         ca0106_pcm_t *epcm = runtime->private_data;
 770         snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
 771         int channel = epcm->channel_id;
 772
 773         if (!epcm->running)
 774                 return 0;
 775
 776         ptr3 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
 777         ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
 778         ptr4 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
 779         if (ptr3 != ptr4) ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
 780         ptr2 = bytes_to_frames(runtime, ptr1);
 781         ptr2+= (ptr4 >> 3) * runtime->period_size;
 782         ptr=ptr2;
 783         if (ptr >= runtime->buffer_size)
 784                 ptr -= runtime->buffer_size;
 785         //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);
 786
 787         return ptr;
 788 }
 789
 790 /* pointer_capture callback */
 791 static snd_pcm_uframes_t
 792 snd_ca0106_pcm_pointer_capture(snd_pcm_substream_t *substream)
 793 {
 794         ca0106_t *emu = snd_pcm_substream_chip(substream);
 795         snd_pcm_runtime_t *runtime = substream->runtime;
 796         ca0106_pcm_t *epcm = runtime->private_data;
 797         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
 798         int channel = channel=epcm->channel_id;
 799
 800         if (!epcm->running)
 801                 return 0;
 802
 803         ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
 804         ptr2 = bytes_to_frames(runtime, ptr1);
 805         ptr=ptr2;
 806         if (ptr >= runtime->buffer_size)
 807                 ptr -= runtime->buffer_size;
 808         //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);
 809
 810         return ptr;
 811 }
 812
 813 /* operators */
 814 static snd_pcm_ops_t snd_ca0106_playback_front_ops = {
 815         .open =        snd_ca0106_pcm_open_playback_front,
 816         .close =       snd_ca0106_pcm_close_playback,
 817         .ioctl =       snd_pcm_lib_ioctl,
 818         .hw_params =   snd_ca0106_pcm_hw_params_playback,
 819         .hw_free =     snd_ca0106_pcm_hw_free_playback,
 820         .prepare =     snd_ca0106_pcm_prepare_playback,
 821         .trigger =     snd_ca0106_pcm_trigger_playback,
 822         .pointer =     snd_ca0106_pcm_pointer_playback,
 823 };
 824
 825 static snd_pcm_ops_t snd_ca0106_capture_0_ops = {
 826         .open =        snd_ca0106_pcm_open_0_capture,
 827         .close =       snd_ca0106_pcm_close_capture,
 828         .ioctl =       snd_pcm_lib_ioctl,
 829         .hw_params =   snd_ca0106_pcm_hw_params_capture,
 830         .hw_free =     snd_ca0106_pcm_hw_free_capture,
 831         .prepare =     snd_ca0106_pcm_prepare_capture,
 832         .trigger =     snd_ca0106_pcm_trigger_capture,
 833         .pointer =     snd_ca0106_pcm_pointer_capture,
 834 };
 835
 836 static snd_pcm_ops_t snd_ca0106_capture_1_ops = {
 837         .open =        snd_ca0106_pcm_open_1_capture,
 838         .close =       snd_ca0106_pcm_close_capture,
 839         .ioctl =       snd_pcm_lib_ioctl,
 840         .hw_params =   snd_ca0106_pcm_hw_params_capture,
 841         .hw_free =     snd_ca0106_pcm_hw_free_capture,
 842         .prepare =     snd_ca0106_pcm_prepare_capture,
 843         .trigger =     snd_ca0106_pcm_trigger_capture,
 844         .pointer =     snd_ca0106_pcm_pointer_capture,
 845 };
 846
 847 static snd_pcm_ops_t snd_ca0106_capture_2_ops = {
 848         .open =        snd_ca0106_pcm_open_2_capture,
 849         .close =       snd_ca0106_pcm_close_capture,
 850         .ioctl =       snd_pcm_lib_ioctl,
 851         .hw_params =   snd_ca0106_pcm_hw_params_capture,
 852         .hw_free =     snd_ca0106_pcm_hw_free_capture,
 853         .prepare =     snd_ca0106_pcm_prepare_capture,
 854         .trigger =     snd_ca0106_pcm_trigger_capture,
 855         .pointer =     snd_ca0106_pcm_pointer_capture,
 856 };
 857
 858 static snd_pcm_ops_t snd_ca0106_capture_3_ops = {
 859         .open =        snd_ca0106_pcm_open_3_capture,
 860         .close =       snd_ca0106_pcm_close_capture,
 861         .ioctl =       snd_pcm_lib_ioctl,
 862         .hw_params =   snd_ca0106_pcm_hw_params_capture,
 863         .hw_free =     snd_ca0106_pcm_hw_free_capture,
 864         .prepare =     snd_ca0106_pcm_prepare_capture,
 865         .trigger =     snd_ca0106_pcm_trigger_capture,
 866         .pointer =     snd_ca0106_pcm_pointer_capture,
 867 };
 868
 869 static snd_pcm_ops_t snd_ca0106_playback_center_lfe_ops = {
 870         .open =         snd_ca0106_pcm_open_playback_center_lfe,
 871         .close =        snd_ca0106_pcm_close_playback,
 872         .ioctl =        snd_pcm_lib_ioctl,
 873         .hw_params =    snd_ca0106_pcm_hw_params_playback,
 874         .hw_free =      snd_ca0106_pcm_hw_free_playback,
 875         .prepare =      snd_ca0106_pcm_prepare_playback,
 876         .trigger =      snd_ca0106_pcm_trigger_playback,
 877         .pointer =      snd_ca0106_pcm_pointer_playback,
 878 };
 879
 880 static snd_pcm_ops_t snd_ca0106_playback_unknown_ops = {
 881         .open =         snd_ca0106_pcm_open_playback_unknown,
 882         .close =        snd_ca0106_pcm_close_playback,
 883         .ioctl =        snd_pcm_lib_ioctl,
 884         .hw_params =    snd_ca0106_pcm_hw_params_playback,
 885         .hw_free =      snd_ca0106_pcm_hw_free_playback,
 886         .prepare =      snd_ca0106_pcm_prepare_playback,
 887         .trigger =      snd_ca0106_pcm_trigger_playback,
 888         .pointer =      snd_ca0106_pcm_pointer_playback,
 889 };
 890
 891 static snd_pcm_ops_t snd_ca0106_playback_rear_ops = {
 892         .open =         snd_ca0106_pcm_open_playback_rear,
 893         .close =        snd_ca0106_pcm_close_playback,
 894         .ioctl =        snd_pcm_lib_ioctl,
 895         .hw_params =    snd_ca0106_pcm_hw_params_playback,
 896                 .hw_free =      snd_ca0106_pcm_hw_free_playback,
 897         .prepare =      snd_ca0106_pcm_prepare_playback,
 898         .trigger =      snd_ca0106_pcm_trigger_playback,
 899         .pointer =      snd_ca0106_pcm_pointer_playback,
 900 };
 901
 902
 903 static unsigned short snd_ca0106_ac97_read(ac97_t *ac97,
 904                                              unsigned short reg)
 905 {
 906         ca0106_t *emu = ac97->private_data;
 907         unsigned long flags;
 908         unsigned short val;
 909
 910         spin_lock_irqsave(&emu->emu_lock, flags);
 911         outb(reg, emu->port + AC97ADDRESS);
 912         val = inw(emu->port + AC97DATA);
 913         spin_unlock_irqrestore(&emu->emu_lock, flags);
 914         return val;
 915 }
 916
 917 static void snd_ca0106_ac97_write(ac97_t *ac97,
 918                                     unsigned short reg, unsigned short val)
 919 {
 920         ca0106_t *emu = ac97->private_data;
 921         unsigned long flags;
 922
 923         spin_lock_irqsave(&emu->emu_lock, flags);
 924         outb(reg, emu->port + AC97ADDRESS);
 925         outw(val, emu->port + AC97DATA);
 926         spin_unlock_irqrestore(&emu->emu_lock, flags);
 927 }
 928
 929 static int snd_ca0106_ac97(ca0106_t *chip)
 930 {
 931         ac97_bus_t *pbus;
 932         ac97_template_t ac97;
 933         int err;
 934         static ac97_bus_ops_t ops = {
 935                 .write = snd_ca0106_ac97_write,
 936                 .read = snd_ca0106_ac97_read,
 937         };
 938
 939         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
 940                 return err;
 941         pbus->no_vra = 1; /* we don't need VRA */
 942
 943         memset(&ac97, 0, sizeof(ac97));
 944         ac97.private_data = chip;
 945         ac97.scaps = AC97_SCAP_NO_SPDIF;
 946         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
 947 }
 948
 949 static int snd_ca0106_free(ca0106_t *chip)
 950 {
 951         if (chip->res_port != NULL) {    /* avoid access to already used hardware */
 952                 // disable interrupts
 953                 snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
 954                 outl(0, chip->port + INTE);
 955                 snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
 956                 udelay(1000);
 957                 // disable audio
 958                 //outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG);
 959                 outl(0, chip->port + HCFG);
 960                 /* FIXME: We need to stop and DMA transfers here.
 961                  *        But as I am not sure how yet, we cannot from the dma pages.
 962                  * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
 963                  */
 964         }
 965         // release the data
 966 #if 1
 967         if (chip->buffer.area)
 968                 snd_dma_free_pages(&chip->buffer);
 969 #endif
 970
 971         // release the i/o port
 972         release_and_free_resource(chip->res_port);
 973
 974         // release the irq
 975         if (chip->irq >= 0)
 976                 free_irq(chip->irq, (void *)chip);
 977         pci_disable_device(chip->pci);
 978         kfree(chip);
 979         return 0;
 980 }
 981
 982 static int snd_ca0106_dev_free(snd_device_t *device)
 983 {
 984         ca0106_t *chip = device->device_data;
 985         return snd_ca0106_free(chip);
 986 }
 987
 988 static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id,
 989                                           struct pt_regs *regs)
 990 {
 991         unsigned int status;
 992
 993         ca0106_t *chip = dev_id;
 994         int i;
 995         int mask;
 996         unsigned int stat76;
 997         ca0106_channel_t *pchannel;
 998
 999         spin_lock(&chip->emu_lock);
1000
1001         status = inl(chip->port + IPR);
1002
1003         // call updater, unlock before it
1004         spin_unlock(&chip->emu_lock);
1005
1006         if (! status)
1007                 return IRQ_NONE;
1008
1009         stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1010         //snd_printk("interrupt status = 0x%08x, stat76=0x%08x\n", status, stat76);
1011         //snd_printk("ptr=0x%08x\n",snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1012         mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1013         for(i = 0; i < 4; i++) {
1014                 pchannel = &(chip->playback_channels[i]);
1015                 if(stat76 & mask) {
1016 /* FIXME: Select the correct substream for period elapsed */
1017                         if(pchannel->use) {
1018                           snd_pcm_period_elapsed(pchannel->epcm->substream);
1019                         //printk(KERN_INFO "interrupt [%d] used\n", i);
1020                         }
1021                 }
1022                 //printk(KERN_INFO "channel=%p\n",pchannel);
1023                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1024                 mask <<= 1;
1025         }
1026         mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1027         for(i = 0; i < 4; i++) {
1028                 pchannel = &(chip->capture_channels[i]);
1029                 if(stat76 & mask) {
1030 /* FIXME: Select the correct substream for period elapsed */
1031                         if(pchannel->use) {
1032                           snd_pcm_period_elapsed(pchannel->epcm->substream);
1033                         //printk(KERN_INFO "interrupt [%d] used\n", i);
1034                         }
1035                 }
1036                 //printk(KERN_INFO "channel=%p\n",pchannel);
1037                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1038                 mask <<= 1;
1039         }
1040
1041         snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1042         spin_lock(&chip->emu_lock);
1043         // acknowledge the interrupt if necessary
1044         outl(status, chip->port+IPR);
1045
1046         spin_unlock(&chip->emu_lock);
1047
1048         return IRQ_HANDLED;
1049 }
1050
1051 static void snd_ca0106_pcm_free(snd_pcm_t *pcm)
1052 {
1053         ca0106_t *emu = pcm->private_data;
1054         emu->pcm = NULL;
1055         snd_pcm_lib_preallocate_free_for_all(pcm);
1056 }
1057
1058 static int __devinit snd_ca0106_pcm(ca0106_t *emu, int device, snd_pcm_t **rpcm)
1059 {
1060         snd_pcm_t *pcm;
1061         snd_pcm_substream_t *substream;
1062         int err;
1063
1064         if (rpcm)
1065                 *rpcm = NULL;
1066         if ((err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm)) < 0)
1067                 return err;
1068
1069         pcm->private_data = emu;
1070         pcm->private_free = snd_ca0106_pcm_free;
1071
1072         switch (device) {
1073         case 0:
1074           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1075           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1076           break;
1077         case 1:
1078           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1079           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1080           break;
1081         case 2:
1082           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1083           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1084           break;
1085         case 3:
1086           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1087           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1088           break;
1089         }
1090
1091         pcm->info_flags = 0;
1092         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1093         strcpy(pcm->name, "CA0106");
1094         emu->pcm = pcm;
1095
1096         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
1097             substream;
1098             substream = substream->next) {
1099                 if ((err = snd_pcm_lib_preallocate_pages(substream,
1100                                                          SNDRV_DMA_TYPE_DEV,
1101                                                          snd_dma_pci_data(emu->pci),
1102                                                          64*1024, 64*1024)) < 0) /* FIXME: 32*1024 for sound buffer, between 32and64 for Periods table. */
1103                         return err;
1104         }
1105
1106         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
1107               substream;
1108               substream = substream->next) {
1109                 if ((err = snd_pcm_lib_preallocate_pages(substream,
1110                                                    SNDRV_DMA_TYPE_DEV,
1111                                                    snd_dma_pci_data(emu->pci),
1112                                                    64*1024, 64*1024)) < 0)
1113                         return err;
1114         }
1115
1116         if (rpcm)
1117                 *rpcm = pcm;
1118
1119         return 0;
1120 }
1121
1122 static int __devinit snd_ca0106_create(snd_card_t *card,
1123                                          struct pci_dev *pci,
1124                                          ca0106_t **rchip)
1125 {
1126         ca0106_t *chip;
1127         ca0106_details_t *c;
1128         int err;
1129         int ch;
1130         static snd_device_ops_t ops = {
1131                 .dev_free = snd_ca0106_dev_free,
1132         };
1133
1134         *rchip = NULL;
1135
1136         if ((err = pci_enable_device(pci)) < 0)
1137                 return err;
1138         if (pci_set_dma_mask(pci, DMA_32BIT_MASK) < 0 ||
1139             pci_set_consistent_dma_mask(pci, DMA_32BIT_MASK) < 0) {
1140                 printk(KERN_ERR "error to set 32bit mask DMA\n");
1141                 pci_disable_device(pci);
1142                 return -ENXIO;
1143         }
1144
1145         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1146         if (chip == NULL) {
1147                 pci_disable_device(pci);
1148                 return -ENOMEM;
1149         }
1150
1151         chip->card = card;
1152         chip->pci = pci;
1153         chip->irq = -1;
1154
1155         spin_lock_init(&chip->emu_lock);
1156
1157         chip->port = pci_resource_start(pci, 0);
1158         if ((chip->res_port = request_region(chip->port, 0x20,
1159                                              "snd_ca0106")) == NULL) {
1160                 snd_ca0106_free(chip);
1161                 printk(KERN_ERR "cannot allocate the port\n");
1162                 return -EBUSY;
1163         }
1164
1165         if (request_irq(pci->irq, snd_ca0106_interrupt,
1166                         SA_INTERRUPT|SA_SHIRQ, "snd_ca0106",
1167                         (void *)chip)) {
1168                 snd_ca0106_free(chip);
1169                 printk(KERN_ERR "cannot grab irq\n");
1170                 return -EBUSY;
1171         }
1172         chip->irq = pci->irq;
1173
1174         /* This stores the periods table. */
1175         if(snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci), 1024, &chip->buffer) < 0) {
1176                 snd_ca0106_free(chip);
1177                 return -ENOMEM;
1178         }
1179
1180         pci_set_master(pci);
1181         /* read revision & serial */
1182         pci_read_config_byte(pci, PCI_REVISION_ID, (char *)&chip->revision);
1183         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1184         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1185 #if 1
1186         printk(KERN_INFO "Model %04x Rev %08x Serial %08x\n", chip->model,
1187                chip->revision, chip->serial);
1188 #endif
1189         strcpy(card->driver, "CA0106");
1190         strcpy(card->shortname, "CA0106");
1191
1192         for (c=ca0106_chip_details; c->serial; c++) {
1193                 if (c->serial == chip->serial) break;
1194         }
1195         chip->details = c;
1196         sprintf(card->longname, "%s at 0x%lx irq %i",
1197                 c->name, chip->port, chip->irq);
1198
1199         outl(0, chip->port + INTE);
1200
1201         /*
1202          *  Init to 0x02109204 :
1203          *  Clock accuracy    = 0     (1000ppm)
1204          *  Sample Rate       = 2     (48kHz)
1205          *  Audio Channel     = 1     (Left of 2)
1206          *  Source Number     = 0     (Unspecified)
1207          *  Generation Status = 1     (Original for Cat Code 12)
1208          *  Cat Code          = 12    (Digital Signal Mixer)
1209          *  Mode              = 0     (Mode 0)
1210          *  Emphasis          = 0     (None)
1211          *  CP                = 1     (Copyright unasserted)
1212          *  AN                = 0     (Audio data)
1213          *  P                 = 0     (Consumer)
1214          */
1215         snd_ca0106_ptr_write(chip, SPCS0, 0,
1216                                 chip->spdif_bits[0] =
1217                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1218                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1219                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1220                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1221         /* Only SPCS1 has been tested */
1222         snd_ca0106_ptr_write(chip, SPCS1, 0,
1223                                 chip->spdif_bits[1] =
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, SPCS2, 0,
1229                                 chip->spdif_bits[2] =
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         snd_ca0106_ptr_write(chip, SPCS3, 0,
1235                                 chip->spdif_bits[3] =
1236                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1237                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1238                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1239                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1240
1241         snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1242         snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1243
1244         /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1245         outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
1246         outw(0x8000, chip->port + AC97DATA);
1247 #if 0
1248         snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1249         snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1250         snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1251         snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1252 #endif
1253
1254         //snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); /* OSS drivers set this. */
1255         /* Analog or Digital output */
1256         snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1257         snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000); /* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers. Use 0x000f0000 for surround71 */
1258         chip->spdif_enable = 0; /* Set digital SPDIF output off */
1259         chip->capture_source = 3; /* Set CAPTURE_SOURCE */
1260         //snd_ca0106_ptr_write(chip, 0x45, 0, 0); /* Analogue out */
1261         //snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00); /* Digital out */
1262
1263         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000); /* goes to 0x40c80000 when doing SPDIF IN/OUT */
1264         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff); /* (Mute) CAPTURE feedback into PLAYBACK volume. Only lower 16 bits matter. */
1265         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000); /* SPDIF IN Volume */
1266         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000); /* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1267         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1268         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1269         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1270         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1271         for(ch = 0; ch < 4; ch++) {
1272                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030); /* Only high 16 bits matter */
1273                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1274                 //snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040); /* Mute */
1275                 //snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040); /* Mute */
1276                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff); /* Mute */
1277                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff); /* Mute */
1278         }
1279         snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4); /* Select MIC, Line in, TAD in, AUX in */
1280         chip->capture_source = 3; /* Set CAPTURE_SOURCE */
1281
1282         if (chip->details->gpio_type == 1) { /* The SB0410 and SB0413 use GPIO differently. */
1283                 /* FIXME: Still need to find out what the other GPIO bits do. E.g. For digital spdif out. */
1284                 outl(0x0, chip->port+GPIO);
1285                 //outl(0x00f0e000, chip->port+GPIO); /* Analog */
1286                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1287         } else {
1288                 outl(0x0, chip->port+GPIO);
1289                 outl(0x005f03a3, chip->port+GPIO); /* Analog */
1290                 //outl(0x005f02a2, chip->port+GPIO);   /* SPDIF */
1291         }
1292         snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1293
1294         //outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG);
1295         //outl(0x00001409, chip->port+HCFG); /* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1296         //outl(0x00000009, chip->port+HCFG);
1297         outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG); /* AC97 2.0, Enable outputs. */
1298
1299         if (chip->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
1300                 snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); /* Enable Line-in capture. MIC in currently untested. */
1301         }
1302
1303         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
1304                                   chip, &ops)) < 0) {
1305                 snd_ca0106_free(chip);
1306                 return err;
1307         }
1308         *rchip = chip;
1309         return 0;
1310 }
1311
1312 static int __devinit snd_ca0106_probe(struct pci_dev *pci,
1313                                         const struct pci_device_id *pci_id)
1314 {
1315         static int dev;
1316         snd_card_t *card;
1317         ca0106_t *chip;
1318         int err;
1319
1320         if (dev >= SNDRV_CARDS)
1321                 return -ENODEV;
1322         if (!enable[dev]) {
1323                 dev++;
1324                 return -ENOENT;
1325         }
1326
1327         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
1328         if (card == NULL)
1329                 return -ENOMEM;
1330
1331         if ((err = snd_ca0106_create(card, pci, &chip)) < 0) {
1332                 snd_card_free(card);
1333                 return err;
1334         }
1335
1336         if ((err = snd_ca0106_pcm(chip, 0, NULL)) < 0) {
1337                 snd_card_free(card);
1338                 return err;
1339         }
1340         if ((err = snd_ca0106_pcm(chip, 1, NULL)) < 0) {
1341                 snd_card_free(card);
1342                 return err;
1343         }
1344         if ((err = snd_ca0106_pcm(chip, 2, NULL)) < 0) {
1345                 snd_card_free(card);
1346                 return err;
1347         }
1348         if ((err = snd_ca0106_pcm(chip, 3, NULL)) < 0) {
1349                 snd_card_free(card);
1350                 return err;
1351         }
1352         if (chip->details->ac97 == 1) { /* The SB0410 and SB0413 do not have an AC97 chip. */
1353                 if ((err = snd_ca0106_ac97(chip)) < 0) {
1354                         snd_card_free(card);
1355                         return err;
1356                 }
1357         }
1358         if ((err = snd_ca0106_mixer(chip)) < 0) {
1359                 snd_card_free(card);
1360                 return err;
1361         }
1362
1363         snd_ca0106_proc_init(chip);
1364
1365         if ((err = snd_card_register(card)) < 0) {
1366                 snd_card_free(card);
1367                 return err;
1368         }
1369
1370         pci_set_drvdata(pci, card);
1371         dev++;
1372         return 0;
1373 }
1374
1375 static void __devexit snd_ca0106_remove(struct pci_dev *pci)
1376 {
1377         snd_card_free(pci_get_drvdata(pci));
1378         pci_set_drvdata(pci, NULL);
1379 }
1380
1381 // PCI IDs
1382 static struct pci_device_id snd_ca0106_ids[] = {
1383         { 0x1102, 0x0007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },    /* Audigy LS or Live 24bit */
1384         { 0, }
1385 };
1386 MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1387
1388 // pci_driver definition
1389 static struct pci_driver driver = {
1390         .name = "CA0106",
1391         .owner = THIS_MODULE,
1392         .id_table = snd_ca0106_ids,
1393         .probe = snd_ca0106_probe,
1394         .remove = __devexit_p(snd_ca0106_remove),
1395 };
1396
1397 // initialization of the module
1398 static int __init alsa_card_ca0106_init(void)
1399 {
1400         int err;
1401
1402         if ((err = pci_register_driver(&driver)) > 0)
1403                 return err;
1404
1405         return 0;
1406 }
1407
1408 // clean up the module
1409 static void __exit alsa_card_ca0106_exit(void)
1410 {
1411         pci_unregister_driver(&driver);
1412 }
1413
1414 module_init(alsa_card_ca0106_init)
1415 module_exit(alsa_card_ca0106_exit)