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 static uint subsystem[SNDRV_CARDS]; /* Force card subsystem model */
 158
 159 module_param_array(index, int, NULL, 0444);
 160 MODULE_PARM_DESC(index, "Index value for the CA0106 soundcard.");
 161 module_param_array(id, charp, NULL, 0444);
 162 MODULE_PARM_DESC(id, "ID string for the CA0106 soundcard.");
 163 module_param_array(enable, bool, NULL, 0444);
 164 MODULE_PARM_DESC(enable, "Enable the CA0106 soundcard.");
 165 module_param_array(subsystem, uint, NULL, 0444);
 166 MODULE_PARM_DESC(subsystem, "Force card subsystem model.");
 167
 168 #include "ca0106.h"
 169
 170 static struct snd_ca0106_details ca0106_chip_details[] = {
 171          /* AudigyLS[SB0310] */
 172          { .serial = 0x10021102,
 173            .name   = "AudigyLS [SB0310]",
 174            .ac97   = 1 } ,
 175          /* Unknown AudigyLS that also says SB0310 on it */
 176          { .serial = 0x10051102,
 177            .name   = "AudigyLS [SB0310b]",
 178            .ac97   = 1 } ,
 179          /* New Sound Blaster Live! 7.1 24bit. This does not have an AC97. 53SB041000001 */
 180          { .serial = 0x10061102,
 181            .name   = "Live! 7.1 24bit [SB0410]",
 182            .gpio_type = 1,
 183            .i2c_adc = 1 } ,
 184          /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
 185          { .serial = 0x10071102,
 186            .name   = "Live! 7.1 24bit [SB0413]",
 187            .gpio_type = 1,
 188            .i2c_adc = 1 } ,
 189          /* New Audigy SE. Has a different DAC. */
 190          /* SB0570:
 191           * CTRL:CA0106-DAT
 192           * ADC: WM8775EDS
 193           * DAC: WM8768GEDS
 194           */
 195          { .serial = 0x100a1102,
 196            .name   = "Audigy SE [SB0570]",
 197            .gpio_type = 1,
 198            .i2c_adc = 1,
 199            .spi_dac = 1 } ,
 200          /* New Audigy LS. Has a different DAC. */
 201          /* SB0570:
 202           * CTRL:CA0106-DAT
 203           * ADC: WM8775EDS
 204           * DAC: WM8768GEDS
 205           */
 206          { .serial = 0x10111102,
 207            .name   = "Audigy SE OEM [SB0570a]",
 208            .gpio_type = 1,
 209            .i2c_adc = 1,
 210            .spi_dac = 1 } ,
 211          /* MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97 */
 212          /* SB0438
 213           * CTRL:CA0106-DAT
 214           * ADC: WM8775SEDS
 215           * DAC: CS4382-KQZ
 216           */
 217          { .serial = 0x10091462,
 218            .name   = "MSI K8N Diamond MB [SB0438]",
 219            .gpio_type = 2,
 220            .i2c_adc = 1 } ,
 221          /* Shuttle XPC SD31P which has an onboard Creative Labs
 222           * Sound Blaster Live! 24-bit EAX
 223           * high-definition 7.1 audio processor".
 224           * Added using info from andrewvegan in alsa bug #1298
 225           */
 226          { .serial = 0x30381297,
 227            .name   = "Shuttle XPC SD31P [SD31P]",
 228            .gpio_type = 1,
 229            .i2c_adc = 1 } ,
 230         /* Shuttle XPC SD11G5 which has an onboard Creative Labs
 231          * Sound Blaster Live! 24-bit EAX
 232          * high-definition 7.1 audio processor".
 233          * Fixes ALSA bug#1600
 234          */
 235         { .serial = 0x30411297,
 236           .name = "Shuttle XPC SD11G5 [SD11G5]",
 237           .gpio_type = 1,
 238           .i2c_adc = 1 } ,
 239          { .serial = 0,
 240            .name   = "AudigyLS [Unknown]" }
 241 };
 242
 243 /* hardware definition */
 244 static struct snd_pcm_hardware snd_ca0106_playback_hw = {
 245         .info =                 (SNDRV_PCM_INFO_MMAP |
 246                                  SNDRV_PCM_INFO_INTERLEAVED |
 247                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 248                                  SNDRV_PCM_INFO_MMAP_VALID),
 249         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
 250         .rates =                (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |
 251                                  SNDRV_PCM_RATE_192000),
 252         .rate_min =             48000,
 253         .rate_max =             192000,
 254         .channels_min =         2,  //1,
 255         .channels_max =         2,  //6,
 256         .buffer_bytes_max =     ((65536 - 64) * 8),
 257         .period_bytes_min =     64,
 258         .period_bytes_max =     (65536 - 64),
 259         .periods_min =          2,
 260         .periods_max =          8,
 261         .fifo_size =            0,
 262 };
 263
 264 static struct snd_pcm_hardware snd_ca0106_capture_hw = {
 265         .info =                 (SNDRV_PCM_INFO_MMAP |
 266                                  SNDRV_PCM_INFO_INTERLEAVED |
 267                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 268                                  SNDRV_PCM_INFO_MMAP_VALID),
 269         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
 270         .rates =                (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
 271                                  SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
 272         .rate_min =             44100,
 273         .rate_max =             192000,
 274         .channels_min =         2,
 275         .channels_max =         2,
 276         .buffer_bytes_max =     ((65536 - 64) * 8),
 277         .period_bytes_min =     64,
 278         .period_bytes_max =     (65536 - 64),
 279         .periods_min =          2,
 280         .periods_max =          2,
 281         .fifo_size =            0,
 282 };
 283
 284 unsigned int snd_ca0106_ptr_read(struct snd_ca0106 * emu,
 285                                           unsigned int reg,
 286                                           unsigned int chn)
 287 {
 288         unsigned long flags;
 289         unsigned int regptr, val;
 290
 291         regptr = (reg << 16) | chn;
 292
 293         spin_lock_irqsave(&emu->emu_lock, flags);
 294         outl(regptr, emu->port + PTR);
 295         val = inl(emu->port + DATA);
 296         spin_unlock_irqrestore(&emu->emu_lock, flags);
 297         return val;
 298 }
 299
 300 void snd_ca0106_ptr_write(struct snd_ca0106 *emu,
 301                                    unsigned int reg,
 302                                    unsigned int chn,
 303                                    unsigned int data)
 304 {
 305         unsigned int regptr;
 306         unsigned long flags;
 307
 308         regptr = (reg << 16) | chn;
 309
 310         spin_lock_irqsave(&emu->emu_lock, flags);
 311         outl(regptr, emu->port + PTR);
 312         outl(data, emu->port + DATA);
 313         spin_unlock_irqrestore(&emu->emu_lock, flags);
 314 }
 315
 316 int snd_ca0106_spi_write(struct snd_ca0106 * emu,
 317                                    unsigned int data)
 318 {
 319         unsigned int reset, set;
 320         unsigned int reg, tmp;
 321         int n, result;
 322         reg = SPI;
 323         if (data > 0xffff) /* Only 16bit values allowed */
 324                 return 1;
 325         tmp = snd_ca0106_ptr_read(emu, reg, 0);
 326         reset = (tmp & ~0x3ffff) | 0x20000; /* Set xxx20000 */
 327         set = reset | 0x10000; /* Set xxx1xxxx */
 328         snd_ca0106_ptr_write(emu, reg, 0, reset | data);
 329         tmp = snd_ca0106_ptr_read(emu, reg, 0); /* write post */
 330         snd_ca0106_ptr_write(emu, reg, 0, set | data);
 331         result = 1;
 332         /* Wait for status bit to return to 0 */
 333         for (n = 0; n < 100; n++) {
 334                 udelay(10);
 335                 tmp = snd_ca0106_ptr_read(emu, reg, 0);
 336                 if (!(tmp & 0x10000)) {
 337                         result = 0;
 338                         break;
 339                 }
 340         }
 341         if (result) /* Timed out */
 342                 return 1;
 343         snd_ca0106_ptr_write(emu, reg, 0, reset | data);
 344         tmp = snd_ca0106_ptr_read(emu, reg, 0); /* Write post */
 345         return 0;
 346 }
 347
 348 /* The ADC does not support i2c read, so only write is implemented */
 349 int snd_ca0106_i2c_write(struct snd_ca0106 *emu,
 350                                 u32 reg,
 351                                 u32 value)
 352 {
 353         u32 tmp;
 354         int timeout = 0;
 355         int status;
 356         int retry;
 357         if ((reg > 0x7f) || (value > 0x1ff)) {
 358                 snd_printk(KERN_ERR "i2c_write: invalid values.\n");
 359                 return -EINVAL;
 360         }
 361
 362         tmp = reg << 25 | value << 16;
 363         // snd_printk("I2C-write:reg=0x%x, value=0x%x\n", reg, value);
 364         /* Not sure what this I2C channel controls. */
 365         /* snd_ca0106_ptr_write(emu, I2C_D0, 0, tmp); */
 366
 367         /* This controls the I2C connected to the WM8775 ADC Codec */
 368         snd_ca0106_ptr_write(emu, I2C_D1, 0, tmp);
 369
 370         for (retry = 0; retry < 10; retry++) {
 371                 /* Send the data to i2c */
 372                 //tmp = snd_ca0106_ptr_read(emu, I2C_A, 0);
 373                 //tmp = tmp & ~(I2C_A_ADC_READ|I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD_MASK);
 374                 tmp = 0;
 375                 tmp = tmp | (I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD);
 376                 snd_ca0106_ptr_write(emu, I2C_A, 0, tmp);
 377
 378                 /* Wait till the transaction ends */
 379                 while (1) {
 380                         status = snd_ca0106_ptr_read(emu, I2C_A, 0);
 381                         //snd_printk("I2C:status=0x%x\n", status);
 382                         timeout++;
 383                         if ((status & I2C_A_ADC_START) == 0)
 384                                 break;
 385
 386                         if (timeout > 1000)
 387                                 break;
 388                 }
 389                 //Read back and see if the transaction is successful
 390                 if ((status & I2C_A_ADC_ABORT) == 0)
 391                         break;
 392         }
 393
 394         if (retry == 10) {
 395                 snd_printk(KERN_ERR "Writing to ADC failed!\n");
 396                 return -EINVAL;
 397         }
 398
 399         return 0;
 400 }
 401
 402
 403 static void snd_ca0106_intr_enable(struct snd_ca0106 *emu, unsigned int intrenb)
 404 {
 405         unsigned long flags;
 406         unsigned int enable;
 407
 408         spin_lock_irqsave(&emu->emu_lock, flags);
 409         enable = inl(emu->port + INTE) | intrenb;
 410         outl(enable, emu->port + INTE);
 411         spin_unlock_irqrestore(&emu->emu_lock, flags);
 412 }
 413
 414 static void snd_ca0106_intr_disable(struct snd_ca0106 *emu, unsigned int intrenb)
 415 {
 416         unsigned long flags;
 417         unsigned int enable;
 418
 419         spin_lock_irqsave(&emu->emu_lock, flags);
 420         enable = inl(emu->port + INTE) & ~intrenb;
 421         outl(enable, emu->port + INTE);
 422         spin_unlock_irqrestore(&emu->emu_lock, flags);
 423 }
 424
 425
 426 static void snd_ca0106_pcm_free_substream(struct snd_pcm_runtime *runtime)
 427 {
 428         kfree(runtime->private_data);
 429 }
 430
 431 /* open_playback callback */
 432 static int snd_ca0106_pcm_open_playback_channel(struct snd_pcm_substream *substream,
 433                                                 int channel_id)
 434 {
 435         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 436         struct snd_ca0106_channel *channel = &(chip->playback_channels[channel_id]);
 437         struct snd_ca0106_pcm *epcm;
 438         struct snd_pcm_runtime *runtime = substream->runtime;
 439         int err;
 440
 441         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 442
 443         if (epcm == NULL)
 444                 return -ENOMEM;
 445         epcm->emu = chip;
 446         epcm->substream = substream;
 447         epcm->channel_id=channel_id;
 448
 449         runtime->private_data = epcm;
 450         runtime->private_free = snd_ca0106_pcm_free_substream;
 451
 452         runtime->hw = snd_ca0106_playback_hw;
 453
 454         channel->emu = chip;
 455         channel->number = channel_id;
 456
 457         channel->use = 1;
 458         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
 459         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 460         channel->epcm = epcm;
 461         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 462                 return err;
 463         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 464                 return err;
 465         return 0;
 466 }
 467
 468 /* close callback */
 469 static int snd_ca0106_pcm_close_playback(struct snd_pcm_substream *substream)
 470 {
 471         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 472         struct snd_pcm_runtime *runtime = substream->runtime;
 473         struct snd_ca0106_pcm *epcm = runtime->private_data;
 474         chip->playback_channels[epcm->channel_id].use = 0;
 475         /* FIXME: maybe zero others */
 476         return 0;
 477 }
 478
 479 static int snd_ca0106_pcm_open_playback_front(struct snd_pcm_substream *substream)
 480 {
 481         return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
 482 }
 483
 484 static int snd_ca0106_pcm_open_playback_center_lfe(struct snd_pcm_substream *substream)
 485 {
 486         return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
 487 }
 488
 489 static int snd_ca0106_pcm_open_playback_unknown(struct snd_pcm_substream *substream)
 490 {
 491         return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
 492 }
 493
 494 static int snd_ca0106_pcm_open_playback_rear(struct snd_pcm_substream *substream)
 495 {
 496         return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
 497 }
 498
 499 /* open_capture callback */
 500 static int snd_ca0106_pcm_open_capture_channel(struct snd_pcm_substream *substream,
 501                                                int channel_id)
 502 {
 503         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 504         struct snd_ca0106_channel *channel = &(chip->capture_channels[channel_id]);
 505         struct snd_ca0106_pcm *epcm;
 506         struct snd_pcm_runtime *runtime = substream->runtime;
 507         int err;
 508
 509         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 510         if (epcm == NULL) {
 511                 snd_printk(KERN_ERR "open_capture_channel: failed epcm alloc\n");
 512                 return -ENOMEM;
 513         }
 514         epcm->emu = chip;
 515         epcm->substream = substream;
 516         epcm->channel_id=channel_id;
 517
 518         runtime->private_data = epcm;
 519         runtime->private_free = snd_ca0106_pcm_free_substream;
 520
 521         runtime->hw = snd_ca0106_capture_hw;
 522
 523         channel->emu = chip;
 524         channel->number = channel_id;
 525
 526         channel->use = 1;
 527         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
 528         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 529         channel->epcm = epcm;
 530         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 531                 return err;
 532         //snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
 533         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 534                 return err;
 535         return 0;
 536 }
 537
 538 /* close callback */
 539 static int snd_ca0106_pcm_close_capture(struct snd_pcm_substream *substream)
 540 {
 541         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 542         struct snd_pcm_runtime *runtime = substream->runtime;
 543         struct snd_ca0106_pcm *epcm = runtime->private_data;
 544         chip->capture_channels[epcm->channel_id].use = 0;
 545         /* FIXME: maybe zero others */
 546         return 0;
 547 }
 548
 549 static int snd_ca0106_pcm_open_0_capture(struct snd_pcm_substream *substream)
 550 {
 551         return snd_ca0106_pcm_open_capture_channel(substream, 0);
 552 }
 553
 554 static int snd_ca0106_pcm_open_1_capture(struct snd_pcm_substream *substream)
 555 {
 556         return snd_ca0106_pcm_open_capture_channel(substream, 1);
 557 }
 558
 559 static int snd_ca0106_pcm_open_2_capture(struct snd_pcm_substream *substream)
 560 {
 561         return snd_ca0106_pcm_open_capture_channel(substream, 2);
 562 }
 563
 564 static int snd_ca0106_pcm_open_3_capture(struct snd_pcm_substream *substream)
 565 {
 566         return snd_ca0106_pcm_open_capture_channel(substream, 3);
 567 }
 568
 569 /* hw_params callback */
 570 static int snd_ca0106_pcm_hw_params_playback(struct snd_pcm_substream *substream,
 571                                       struct snd_pcm_hw_params *hw_params)
 572 {
 573         return snd_pcm_lib_malloc_pages(substream,
 574                                         params_buffer_bytes(hw_params));
 575 }
 576
 577 /* hw_free callback */
 578 static int snd_ca0106_pcm_hw_free_playback(struct snd_pcm_substream *substream)
 579 {
 580         return snd_pcm_lib_free_pages(substream);
 581 }
 582
 583 /* hw_params callback */
 584 static int snd_ca0106_pcm_hw_params_capture(struct snd_pcm_substream *substream,
 585                                       struct snd_pcm_hw_params *hw_params)
 586 {
 587         return snd_pcm_lib_malloc_pages(substream,
 588                                         params_buffer_bytes(hw_params));
 589 }
 590
 591 /* hw_free callback */
 592 static int snd_ca0106_pcm_hw_free_capture(struct snd_pcm_substream *substream)
 593 {
 594         return snd_pcm_lib_free_pages(substream);
 595 }
 596
 597 /* prepare playback callback */
 598 static int snd_ca0106_pcm_prepare_playback(struct snd_pcm_substream *substream)
 599 {
 600         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 601         struct snd_pcm_runtime *runtime = substream->runtime;
 602         struct snd_ca0106_pcm *epcm = runtime->private_data;
 603         int channel = epcm->channel_id;
 604         u32 *table_base = (u32 *)(emu->buffer.area+(8*16*channel));
 605         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
 606         u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
 607         u32 hcfg_set = 0x00000000;
 608         u32 hcfg;
 609         u32 reg40_mask = 0x30000 << (channel<<1);
 610         u32 reg40_set = 0;
 611         u32 reg40;
 612         /* FIXME: Depending on mixer selection of SPDIF out or not, select the spdif rate or the DAC rate. */
 613         u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
 614         u32 reg71_set = 0;
 615         u32 reg71;
 616         int i;
 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         /* Rate can be set per channel. */
 622         /* reg40 control host to fifo */
 623         /* reg71 controls DAC rate. */
 624         switch (runtime->rate) {
 625         case 44100:
 626                 reg40_set = 0x10000 << (channel<<1);
 627                 reg71_set = 0x01010000;
 628                 break;
 629         case 48000:
 630                 reg40_set = 0;
 631                 reg71_set = 0;
 632                 break;
 633         case 96000:
 634                 reg40_set = 0x20000 << (channel<<1);
 635                 reg71_set = 0x02020000;
 636                 break;
 637         case 192000:
 638                 reg40_set = 0x30000 << (channel<<1);
 639                 reg71_set = 0x03030000;
 640                 break;
 641         default:
 642                 reg40_set = 0;
 643                 reg71_set = 0;
 644                 break;
 645         }
 646         /* Format is a global setting */
 647         /* FIXME: Only let the first channel accessed set this. */
 648         switch (runtime->format) {
 649         case SNDRV_PCM_FORMAT_S16_LE:
 650                 hcfg_set = 0;
 651                 break;
 652         case SNDRV_PCM_FORMAT_S32_LE:
 653                 hcfg_set = HCFG_PLAYBACK_S32_LE;
 654                 break;
 655         default:
 656                 hcfg_set = 0;
 657                 break;
 658         }
 659         hcfg = inl(emu->port + HCFG) ;
 660         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 661         outl(hcfg, emu->port + HCFG);
 662         reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
 663         reg40 = (reg40 & ~reg40_mask) | reg40_set;
 664         snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
 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
 669         /* FIXME: Check emu->buffer.size before actually writing to it. */
 670         for(i=0; i < runtime->periods; i++) {
 671                 table_base[i*2] = runtime->dma_addr + (i * period_size_bytes);
 672                 table_base[i*2+1] = period_size_bytes << 16;
 673         }
 674
 675         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
 676         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
 677         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
 678         snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
 679         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
 680         /* FIXME  test what 0 bytes does. */
 681         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
 682         snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
 683         snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
 684         snd_ca0106_ptr_write(emu, 0x08, channel, 0);
 685         snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
 686 #if 0
 687         snd_ca0106_ptr_write(emu, SPCS0, 0,
 688                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
 689                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
 690                                SPCS_GENERATIONSTATUS | 0x00001200 |
 691                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
 692         }
 693 #endif
 694
 695         return 0;
 696 }
 697
 698 /* prepare capture callback */
 699 static int snd_ca0106_pcm_prepare_capture(struct snd_pcm_substream *substream)
 700 {
 701         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 702         struct snd_pcm_runtime *runtime = substream->runtime;
 703         struct snd_ca0106_pcm *epcm = runtime->private_data;
 704         int channel = epcm->channel_id;
 705         u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
 706         u32 hcfg_set = 0x00000000;
 707         u32 hcfg;
 708         u32 over_sampling=0x2;
 709         u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
 710         u32 reg71_set = 0;
 711         u32 reg71;
 712
 713         //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));
 714         //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
 715         //snd_printk("dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 716         /* reg71 controls ADC rate. */
 717         switch (runtime->rate) {
 718         case 44100:
 719                 reg71_set = 0x00004000;
 720                 break;
 721         case 48000:
 722                 reg71_set = 0;
 723                 break;
 724         case 96000:
 725                 reg71_set = 0x00008000;
 726                 over_sampling=0xa;
 727                 break;
 728         case 192000:
 729                 reg71_set = 0x0000c000;
 730                 over_sampling=0xa;
 731                 break;
 732         default:
 733                 reg71_set = 0;
 734                 break;
 735         }
 736         /* Format is a global setting */
 737         /* FIXME: Only let the first channel accessed set this. */
 738         switch (runtime->format) {
 739         case SNDRV_PCM_FORMAT_S16_LE:
 740                 hcfg_set = 0;
 741                 break;
 742         case SNDRV_PCM_FORMAT_S32_LE:
 743                 hcfg_set = HCFG_CAPTURE_S32_LE;
 744                 break;
 745         default:
 746                 hcfg_set = 0;
 747                 break;
 748         }
 749         hcfg = inl(emu->port + HCFG) ;
 750         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 751         outl(hcfg, emu->port + HCFG);
 752         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 753         reg71 = (reg71 & ~reg71_mask) | reg71_set;
 754         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 755         if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
 756                 snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
 757         }
 758
 759
 760         //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));
 761         snd_ca0106_ptr_write(emu, 0x13, channel, 0);
 762         snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
 763         snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
 764         snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
 765
 766         return 0;
 767 }
 768
 769 /* trigger_playback callback */
 770 static int snd_ca0106_pcm_trigger_playback(struct snd_pcm_substream *substream,
 771                                     int cmd)
 772 {
 773         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 774         struct snd_pcm_runtime *runtime;
 775         struct snd_ca0106_pcm *epcm;
 776         int channel;
 777         int result = 0;
 778         struct snd_pcm_substream *s;
 779         u32 basic = 0;
 780         u32 extended = 0;
 781         int running=0;
 782
 783         switch (cmd) {
 784         case SNDRV_PCM_TRIGGER_START:
 785                 running=1;
 786                 break;
 787         case SNDRV_PCM_TRIGGER_STOP:
 788         default:
 789                 running=0;
 790                 break;
 791         }
 792         snd_pcm_group_for_each_entry(s, substream) {
 793                 runtime = s->runtime;
 794                 epcm = runtime->private_data;
 795                 channel = epcm->channel_id;
 796                 //snd_printk("channel=%d\n",channel);
 797                 epcm->running = running;
 798                 basic |= (0x1<<channel);
 799                 extended |= (0x10<<channel);
 800                 snd_pcm_trigger_done(s, substream);
 801         }
 802         //snd_printk("basic=0x%x, extended=0x%x\n",basic, extended);
 803
 804         switch (cmd) {
 805         case SNDRV_PCM_TRIGGER_START:
 806                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (extended));
 807                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(basic));
 808                 break;
 809         case SNDRV_PCM_TRIGGER_STOP:
 810                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(basic));
 811                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(extended));
 812                 break;
 813         default:
 814                 result = -EINVAL;
 815                 break;
 816         }
 817         return result;
 818 }
 819
 820 /* trigger_capture callback */
 821 static int snd_ca0106_pcm_trigger_capture(struct snd_pcm_substream *substream,
 822                                     int cmd)
 823 {
 824         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 825         struct snd_pcm_runtime *runtime = substream->runtime;
 826         struct snd_ca0106_pcm *epcm = runtime->private_data;
 827         int channel = epcm->channel_id;
 828         int result = 0;
 829
 830         switch (cmd) {
 831         case SNDRV_PCM_TRIGGER_START:
 832                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
 833                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
 834                 epcm->running = 1;
 835                 break;
 836         case SNDRV_PCM_TRIGGER_STOP:
 837                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
 838                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
 839                 epcm->running = 0;
 840                 break;
 841         default:
 842                 result = -EINVAL;
 843                 break;
 844         }
 845         return result;
 846 }
 847
 848 /* pointer_playback callback */
 849 static snd_pcm_uframes_t
 850 snd_ca0106_pcm_pointer_playback(struct snd_pcm_substream *substream)
 851 {
 852         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 853         struct snd_pcm_runtime *runtime = substream->runtime;
 854         struct snd_ca0106_pcm *epcm = runtime->private_data;
 855         snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
 856         int channel = epcm->channel_id;
 857
 858         if (!epcm->running)
 859                 return 0;
 860
 861         ptr3 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
 862         ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
 863         ptr4 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
 864         if (ptr3 != ptr4) ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
 865         ptr2 = bytes_to_frames(runtime, ptr1);
 866         ptr2+= (ptr4 >> 3) * runtime->period_size;
 867         ptr=ptr2;
 868         if (ptr >= runtime->buffer_size)
 869                 ptr -= runtime->buffer_size;
 870         //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);
 871
 872         return ptr;
 873 }
 874
 875 /* pointer_capture callback */
 876 static snd_pcm_uframes_t
 877 snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream *substream)
 878 {
 879         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 880         struct snd_pcm_runtime *runtime = substream->runtime;
 881         struct snd_ca0106_pcm *epcm = runtime->private_data;
 882         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
 883         int channel = channel=epcm->channel_id;
 884
 885         if (!epcm->running)
 886                 return 0;
 887
 888         ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
 889         ptr2 = bytes_to_frames(runtime, ptr1);
 890         ptr=ptr2;
 891         if (ptr >= runtime->buffer_size)
 892                 ptr -= runtime->buffer_size;
 893         //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);
 894
 895         return ptr;
 896 }
 897
 898 /* operators */
 899 static struct snd_pcm_ops snd_ca0106_playback_front_ops = {
 900         .open =        snd_ca0106_pcm_open_playback_front,
 901         .close =       snd_ca0106_pcm_close_playback,
 902         .ioctl =       snd_pcm_lib_ioctl,
 903         .hw_params =   snd_ca0106_pcm_hw_params_playback,
 904         .hw_free =     snd_ca0106_pcm_hw_free_playback,
 905         .prepare =     snd_ca0106_pcm_prepare_playback,
 906         .trigger =     snd_ca0106_pcm_trigger_playback,
 907         .pointer =     snd_ca0106_pcm_pointer_playback,
 908 };
 909
 910 static struct snd_pcm_ops snd_ca0106_capture_0_ops = {
 911         .open =        snd_ca0106_pcm_open_0_capture,
 912         .close =       snd_ca0106_pcm_close_capture,
 913         .ioctl =       snd_pcm_lib_ioctl,
 914         .hw_params =   snd_ca0106_pcm_hw_params_capture,
 915         .hw_free =     snd_ca0106_pcm_hw_free_capture,
 916         .prepare =     snd_ca0106_pcm_prepare_capture,
 917         .trigger =     snd_ca0106_pcm_trigger_capture,
 918         .pointer =     snd_ca0106_pcm_pointer_capture,
 919 };
 920
 921 static struct snd_pcm_ops snd_ca0106_capture_1_ops = {
 922         .open =        snd_ca0106_pcm_open_1_capture,
 923         .close =       snd_ca0106_pcm_close_capture,
 924         .ioctl =       snd_pcm_lib_ioctl,
 925         .hw_params =   snd_ca0106_pcm_hw_params_capture,
 926         .hw_free =     snd_ca0106_pcm_hw_free_capture,
 927         .prepare =     snd_ca0106_pcm_prepare_capture,
 928         .trigger =     snd_ca0106_pcm_trigger_capture,
 929         .pointer =     snd_ca0106_pcm_pointer_capture,
 930 };
 931
 932 static struct snd_pcm_ops snd_ca0106_capture_2_ops = {
 933         .open =        snd_ca0106_pcm_open_2_capture,
 934         .close =       snd_ca0106_pcm_close_capture,
 935         .ioctl =       snd_pcm_lib_ioctl,
 936         .hw_params =   snd_ca0106_pcm_hw_params_capture,
 937         .hw_free =     snd_ca0106_pcm_hw_free_capture,
 938         .prepare =     snd_ca0106_pcm_prepare_capture,
 939         .trigger =     snd_ca0106_pcm_trigger_capture,
 940         .pointer =     snd_ca0106_pcm_pointer_capture,
 941 };
 942
 943 static struct snd_pcm_ops snd_ca0106_capture_3_ops = {
 944         .open =        snd_ca0106_pcm_open_3_capture,
 945         .close =       snd_ca0106_pcm_close_capture,
 946         .ioctl =       snd_pcm_lib_ioctl,
 947         .hw_params =   snd_ca0106_pcm_hw_params_capture,
 948         .hw_free =     snd_ca0106_pcm_hw_free_capture,
 949         .prepare =     snd_ca0106_pcm_prepare_capture,
 950         .trigger =     snd_ca0106_pcm_trigger_capture,
 951         .pointer =     snd_ca0106_pcm_pointer_capture,
 952 };
 953
 954 static struct snd_pcm_ops snd_ca0106_playback_center_lfe_ops = {
 955         .open =         snd_ca0106_pcm_open_playback_center_lfe,
 956         .close =        snd_ca0106_pcm_close_playback,
 957         .ioctl =        snd_pcm_lib_ioctl,
 958         .hw_params =    snd_ca0106_pcm_hw_params_playback,
 959         .hw_free =      snd_ca0106_pcm_hw_free_playback,
 960         .prepare =      snd_ca0106_pcm_prepare_playback,
 961         .trigger =      snd_ca0106_pcm_trigger_playback,
 962         .pointer =      snd_ca0106_pcm_pointer_playback,
 963 };
 964
 965 static struct snd_pcm_ops snd_ca0106_playback_unknown_ops = {
 966         .open =         snd_ca0106_pcm_open_playback_unknown,
 967         .close =        snd_ca0106_pcm_close_playback,
 968         .ioctl =        snd_pcm_lib_ioctl,
 969         .hw_params =    snd_ca0106_pcm_hw_params_playback,
 970         .hw_free =      snd_ca0106_pcm_hw_free_playback,
 971         .prepare =      snd_ca0106_pcm_prepare_playback,
 972         .trigger =      snd_ca0106_pcm_trigger_playback,
 973         .pointer =      snd_ca0106_pcm_pointer_playback,
 974 };
 975
 976 static struct snd_pcm_ops snd_ca0106_playback_rear_ops = {
 977         .open =         snd_ca0106_pcm_open_playback_rear,
 978         .close =        snd_ca0106_pcm_close_playback,
 979         .ioctl =        snd_pcm_lib_ioctl,
 980         .hw_params =    snd_ca0106_pcm_hw_params_playback,
 981                 .hw_free =      snd_ca0106_pcm_hw_free_playback,
 982         .prepare =      snd_ca0106_pcm_prepare_playback,
 983         .trigger =      snd_ca0106_pcm_trigger_playback,
 984         .pointer =      snd_ca0106_pcm_pointer_playback,
 985 };
 986
 987
 988 static unsigned short snd_ca0106_ac97_read(struct snd_ac97 *ac97,
 989                                              unsigned short reg)
 990 {
 991         struct snd_ca0106 *emu = ac97->private_data;
 992         unsigned long flags;
 993         unsigned short val;
 994
 995         spin_lock_irqsave(&emu->emu_lock, flags);
 996         outb(reg, emu->port + AC97ADDRESS);
 997         val = inw(emu->port + AC97DATA);
 998         spin_unlock_irqrestore(&emu->emu_lock, flags);
 999         return val;
1000 }
1001
1002 static void snd_ca0106_ac97_write(struct snd_ac97 *ac97,
1003                                     unsigned short reg, unsigned short val)
1004 {
1005         struct snd_ca0106 *emu = ac97->private_data;
1006         unsigned long flags;
1007
1008         spin_lock_irqsave(&emu->emu_lock, flags);
1009         outb(reg, emu->port + AC97ADDRESS);
1010         outw(val, emu->port + AC97DATA);
1011         spin_unlock_irqrestore(&emu->emu_lock, flags);
1012 }
1013
1014 static int snd_ca0106_ac97(struct snd_ca0106 *chip)
1015 {
1016         struct snd_ac97_bus *pbus;
1017         struct snd_ac97_template ac97;
1018         int err;
1019         static struct snd_ac97_bus_ops ops = {
1020                 .write = snd_ca0106_ac97_write,
1021                 .read = snd_ca0106_ac97_read,
1022         };
1023
1024         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
1025                 return err;
1026         pbus->no_vra = 1; /* we don't need VRA */
1027
1028         memset(&ac97, 0, sizeof(ac97));
1029         ac97.private_data = chip;
1030         ac97.scaps = AC97_SCAP_NO_SPDIF;
1031         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1032 }
1033
1034 static int snd_ca0106_free(struct snd_ca0106 *chip)
1035 {
1036         if (chip->res_port != NULL) {    /* avoid access to already used hardware */
1037                 // disable interrupts
1038                 snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
1039                 outl(0, chip->port + INTE);
1040                 snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
1041                 udelay(1000);
1042                 // disable audio
1043                 //outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG);
1044                 outl(0, chip->port + HCFG);
1045                 /* FIXME: We need to stop and DMA transfers here.
1046                  *        But as I am not sure how yet, we cannot from the dma pages.
1047                  * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
1048                  */
1049         }
1050         // release the data
1051 #if 1
1052         if (chip->buffer.area)
1053                 snd_dma_free_pages(&chip->buffer);
1054 #endif
1055
1056         // release the i/o port
1057         release_and_free_resource(chip->res_port);
1058
1059         // release the irq
1060         if (chip->irq >= 0)
1061                 free_irq(chip->irq, chip);
1062         pci_disable_device(chip->pci);
1063         kfree(chip);
1064         return 0;
1065 }
1066
1067 static int snd_ca0106_dev_free(struct snd_device *device)
1068 {
1069         struct snd_ca0106 *chip = device->device_data;
1070         return snd_ca0106_free(chip);
1071 }
1072
1073 static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
1074 {
1075         unsigned int status;
1076
1077         struct snd_ca0106 *chip = dev_id;
1078         int i;
1079         int mask;
1080         unsigned int stat76;
1081         struct snd_ca0106_channel *pchannel;
1082
1083         status = inl(chip->port + IPR);
1084         if (! status)
1085                 return IRQ_NONE;
1086
1087         stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1088         //snd_printk("interrupt status = 0x%08x, stat76=0x%08x\n", status, stat76);
1089         //snd_printk("ptr=0x%08x\n",snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1090         mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1091         for(i = 0; i < 4; i++) {
1092                 pchannel = &(chip->playback_channels[i]);
1093                 if (stat76 & mask) {
1094 /* FIXME: Select the correct substream for period elapsed */
1095                         if(pchannel->use) {
1096                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1097                                 //printk(KERN_INFO "interrupt [%d] used\n", i);
1098                         }
1099                 }
1100                 //printk(KERN_INFO "channel=%p\n",pchannel);
1101                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1102                 mask <<= 1;
1103         }
1104         mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1105         for(i = 0; i < 4; i++) {
1106                 pchannel = &(chip->capture_channels[i]);
1107                 if (stat76 & mask) {
1108 /* FIXME: Select the correct substream for period elapsed */
1109                         if(pchannel->use) {
1110                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1111                                 //printk(KERN_INFO "interrupt [%d] used\n", i);
1112                         }
1113                 }
1114                 //printk(KERN_INFO "channel=%p\n",pchannel);
1115                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1116                 mask <<= 1;
1117         }
1118
1119         snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1120
1121         if (chip->midi.dev_id &&
1122             (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1123                 if (chip->midi.interrupt)
1124                         chip->midi.interrupt(&chip->midi, status);
1125                 else
1126                         chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1127         }
1128
1129         // acknowledge the interrupt if necessary
1130         outl(status, chip->port+IPR);
1131
1132         return IRQ_HANDLED;
1133 }
1134
1135 static int __devinit snd_ca0106_pcm(struct snd_ca0106 *emu, int device, struct snd_pcm **rpcm)
1136 {
1137         struct snd_pcm *pcm;
1138         struct snd_pcm_substream *substream;
1139         int err;
1140
1141         if (rpcm)
1142                 *rpcm = NULL;
1143         if ((err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm)) < 0)
1144                 return err;
1145
1146         pcm->private_data = emu;
1147
1148         switch (device) {
1149         case 0:
1150           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1151           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1152           break;
1153         case 1:
1154           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1155           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1156           break;
1157         case 2:
1158           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1159           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1160           break;
1161         case 3:
1162           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1163           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1164           break;
1165         }
1166
1167         pcm->info_flags = 0;
1168         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1169         strcpy(pcm->name, "CA0106");
1170         emu->pcm = pcm;
1171
1172         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
1173             substream;
1174             substream = substream->next) {
1175                 if ((err = snd_pcm_lib_preallocate_pages(substream,
1176                                                          SNDRV_DMA_TYPE_DEV,
1177                                                          snd_dma_pci_data(emu->pci),
1178                                                          64*1024, 64*1024)) < 0) /* FIXME: 32*1024 for sound buffer, between 32and64 for Periods table. */
1179                         return err;
1180         }
1181
1182         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
1183               substream;
1184               substream = substream->next) {
1185                 if ((err = snd_pcm_lib_preallocate_pages(substream,
1186                                                    SNDRV_DMA_TYPE_DEV,
1187                                                    snd_dma_pci_data(emu->pci),
1188                                                    64*1024, 64*1024)) < 0)
1189                         return err;
1190         }
1191
1192         if (rpcm)
1193                 *rpcm = pcm;
1194
1195         return 0;
1196 }
1197
1198 static unsigned int spi_dac_init[] = {
1199         0x00ff,
1200         0x02ff,
1201         0x0400,
1202         0x0520,
1203         0x0620, /* Set 24 bit. Was 0x0600 */
1204         0x08ff,
1205         0x0aff,
1206         0x0cff,
1207         0x0eff,
1208         0x10ff,
1209         0x1200,
1210         0x1400,
1211         0x1480,
1212         0x1800,
1213         0x1aff,
1214         0x1cff,
1215         0x1e00,
1216         0x0530,
1217         0x0602,
1218         0x0622,
1219         0x1400,
1220 };
1221
1222 static unsigned int i2c_adc_init[][2] = {
1223         { 0x17, 0x00 }, /* Reset */
1224         { 0x07, 0x00 }, /* Timeout */
1225         { 0x0b, 0x22 },  /* Interface control */
1226         { 0x0c, 0x22 },  /* Master mode control */
1227         { 0x0d, 0x08 },  /* Powerdown control */
1228         { 0x0e, 0xcf },  /* Attenuation Left  0x01 = -103dB, 0xff = 24dB */
1229         { 0x0f, 0xcf },  /* Attenuation Right 0.5dB steps */
1230         { 0x10, 0x7b },  /* ALC Control 1 */
1231         { 0x11, 0x00 },  /* ALC Control 2 */
1232         { 0x12, 0x32 },  /* ALC Control 3 */
1233         { 0x13, 0x00 },  /* Noise gate control */
1234         { 0x14, 0xa6 },  /* Limiter control */
1235         { 0x15, ADC_MUX_LINEIN },  /* ADC Mixer control */
1236 };
1237
1238 static int __devinit snd_ca0106_create(int dev, struct snd_card *card,
1239                                          struct pci_dev *pci,
1240                                          struct snd_ca0106 **rchip)
1241 {
1242         struct snd_ca0106 *chip;
1243         struct snd_ca0106_details *c;
1244         int err;
1245         int ch;
1246         static struct snd_device_ops ops = {
1247                 .dev_free = snd_ca0106_dev_free,
1248         };
1249
1250         *rchip = NULL;
1251
1252         if ((err = pci_enable_device(pci)) < 0)
1253                 return err;
1254         if (pci_set_dma_mask(pci, DMA_32BIT_MASK) < 0 ||
1255             pci_set_consistent_dma_mask(pci, DMA_32BIT_MASK) < 0) {
1256                 printk(KERN_ERR "error to set 32bit mask DMA\n");
1257                 pci_disable_device(pci);
1258                 return -ENXIO;
1259         }
1260
1261         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1262         if (chip == NULL) {
1263                 pci_disable_device(pci);
1264                 return -ENOMEM;
1265         }
1266
1267         chip->card = card;
1268         chip->pci = pci;
1269         chip->irq = -1;
1270
1271         spin_lock_init(&chip->emu_lock);
1272
1273         chip->port = pci_resource_start(pci, 0);
1274         if ((chip->res_port = request_region(chip->port, 0x20,
1275                                              "snd_ca0106")) == NULL) {
1276                 snd_ca0106_free(chip);
1277                 printk(KERN_ERR "cannot allocate the port\n");
1278                 return -EBUSY;
1279         }
1280
1281         if (request_irq(pci->irq, snd_ca0106_interrupt,
1282                         IRQF_SHARED, "snd_ca0106", chip)) {
1283                 snd_ca0106_free(chip);
1284                 printk(KERN_ERR "cannot grab irq\n");
1285                 return -EBUSY;
1286         }
1287         chip->irq = pci->irq;
1288
1289         /* This stores the periods table. */
1290         if(snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci), 1024, &chip->buffer) < 0) {
1291                 snd_ca0106_free(chip);
1292                 return -ENOMEM;
1293         }
1294
1295         pci_set_master(pci);
1296         /* read serial */
1297         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1298         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1299 #if 1
1300         printk(KERN_INFO "snd-ca0106: Model %04x Rev %08x Serial %08x\n", chip->model,
1301                pci->revision, chip->serial);
1302 #endif
1303         strcpy(card->driver, "CA0106");
1304         strcpy(card->shortname, "CA0106");
1305
1306         for (c = ca0106_chip_details; c->serial; c++) {
1307                 if (subsystem[dev]) {
1308                         if (c->serial == subsystem[dev])
1309                                 break;
1310                 } else if (c->serial == chip->serial)
1311                         break;
1312         }
1313         chip->details = c;
1314         if (subsystem[dev]) {
1315                 printk(KERN_INFO "snd-ca0106: Sound card name=%s, subsystem=0x%x. Forced to subsystem=0x%x\n",
1316                         c->name, chip->serial, subsystem[dev]);
1317         }
1318
1319         sprintf(card->longname, "%s at 0x%lx irq %i",
1320                 c->name, chip->port, chip->irq);
1321
1322         outl(0, chip->port + INTE);
1323
1324         /*
1325          *  Init to 0x02109204 :
1326          *  Clock accuracy    = 0     (1000ppm)
1327          *  Sample Rate       = 2     (48kHz)
1328          *  Audio Channel     = 1     (Left of 2)
1329          *  Source Number     = 0     (Unspecified)
1330          *  Generation Status = 1     (Original for Cat Code 12)
1331          *  Cat Code          = 12    (Digital Signal Mixer)
1332          *  Mode              = 0     (Mode 0)
1333          *  Emphasis          = 0     (None)
1334          *  CP                = 1     (Copyright unasserted)
1335          *  AN                = 0     (Audio data)
1336          *  P                 = 0     (Consumer)
1337          */
1338         snd_ca0106_ptr_write(chip, SPCS0, 0,
1339                                 chip->spdif_bits[0] =
1340                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1341                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1342                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1343                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1344         /* Only SPCS1 has been tested */
1345         snd_ca0106_ptr_write(chip, SPCS1, 0,
1346                                 chip->spdif_bits[1] =
1347                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1348                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1349                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1350                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1351         snd_ca0106_ptr_write(chip, SPCS2, 0,
1352                                 chip->spdif_bits[2] =
1353                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1354                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1355                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1356                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1357         snd_ca0106_ptr_write(chip, SPCS3, 0,
1358                                 chip->spdif_bits[3] =
1359                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1360                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1361                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1362                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1363
1364         snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1365         snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1366
1367         /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1368         outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
1369         outw(0x8000, chip->port + AC97DATA);
1370 #if 0
1371         snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1372         snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1373         snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1374         snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1375 #endif
1376
1377         //snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); /* OSS drivers set this. */
1378         /* Analog or Digital output */
1379         snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1380         snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000); /* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers. Use 0x000f0000 for surround71 */
1381         chip->spdif_enable = 0; /* Set digital SPDIF output off */
1382         //snd_ca0106_ptr_write(chip, 0x45, 0, 0); /* Analogue out */
1383         //snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00); /* Digital out */
1384
1385         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000); /* goes to 0x40c80000 when doing SPDIF IN/OUT */
1386         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff); /* (Mute) CAPTURE feedback into PLAYBACK volume. Only lower 16 bits matter. */
1387         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000); /* SPDIF IN Volume */
1388         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000); /* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1389         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1390         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1391         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1392         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1393         for(ch = 0; ch < 4; ch++) {
1394                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030); /* Only high 16 bits matter */
1395                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1396                 //snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040); /* Mute */
1397                 //snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040); /* Mute */
1398                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff); /* Mute */
1399                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff); /* Mute */
1400         }
1401         if (chip->details->i2c_adc == 1) {
1402                 /* Select MIC, Line in, TAD in, AUX in */
1403                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1404                 /* Default to CAPTURE_SOURCE to i2s in */
1405                 chip->capture_source = 3;
1406         } else if (chip->details->ac97 == 1) {
1407                 /* Default to AC97 in */
1408                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x444400e4);
1409                 /* Default to CAPTURE_SOURCE to AC97 in */
1410                 chip->capture_source = 4;
1411         } else {
1412                 /* Select MIC, Line in, TAD in, AUX in */
1413                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1414                 /* Default to Set CAPTURE_SOURCE to i2s in */
1415                 chip->capture_source = 3;
1416         }
1417
1418         if (chip->details->gpio_type == 2) { /* The SB0438 use GPIO differently. */
1419                 /* FIXME: Still need to find out what the other GPIO bits do. E.g. For digital spdif out. */
1420                 outl(0x0, chip->port+GPIO);
1421                 //outl(0x00f0e000, chip->port+GPIO); /* Analog */
1422                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1423         } else if (chip->details->gpio_type == 1) { /* The SB0410 and SB0413 use GPIO differently. */
1424                 /* FIXME: Still need to find out what the other GPIO bits do. E.g. For digital spdif out. */
1425                 outl(0x0, chip->port+GPIO);
1426                 //outl(0x00f0e000, chip->port+GPIO); /* Analog */
1427                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1428         } else {
1429                 outl(0x0, chip->port+GPIO);
1430                 outl(0x005f03a3, chip->port+GPIO); /* Analog */
1431                 //outl(0x005f02a2, chip->port+GPIO);   /* SPDIF */
1432         }
1433         snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1434
1435         //outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG);
1436         //outl(0x00001409, chip->port+HCFG); /* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1437         //outl(0x00000009, chip->port+HCFG);
1438         outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG); /* AC97 2.0, Enable outputs. */
1439
1440         if (chip->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
1441                 int size, n;
1442
1443                 size = ARRAY_SIZE(i2c_adc_init);
1444                 //snd_printk("I2C:array size=0x%x\n", size);
1445                 for (n=0; n < size; n++) {
1446                         snd_ca0106_i2c_write(chip, i2c_adc_init[n][0], i2c_adc_init[n][1]);
1447                 }
1448                 for (n=0; n < 4; n++) {
1449                         chip->i2c_capture_volume[n][0]= 0xcf;
1450                         chip->i2c_capture_volume[n][1]= 0xcf;
1451                 }
1452                 chip->i2c_capture_source=2; /* Line in */
1453                 //snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); /* Enable Line-in capture. MIC in currently untested. */
1454         }
1455         if (chip->details->spi_dac == 1) { /* The SB0570 use SPI to control DAC. */
1456                 int size, n;
1457
1458                 size = ARRAY_SIZE(spi_dac_init);
1459                 for (n=0; n < size; n++)
1460                         snd_ca0106_spi_write(chip, spi_dac_init[n]);
1461         }
1462
1463         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
1464                                   chip, &ops)) < 0) {
1465                 snd_ca0106_free(chip);
1466                 return err;
1467         }
1468         *rchip = chip;
1469         return 0;
1470 }
1471
1472
1473 static void ca0106_midi_interrupt_enable(struct snd_ca_midi *midi, int intr)
1474 {
1475         snd_ca0106_intr_enable((struct snd_ca0106 *)(midi->dev_id), intr);
1476 }
1477
1478 static void ca0106_midi_interrupt_disable(struct snd_ca_midi *midi, int intr)
1479 {
1480         snd_ca0106_intr_disable((struct snd_ca0106 *)(midi->dev_id), intr);
1481 }
1482
1483 static unsigned char ca0106_midi_read(struct snd_ca_midi *midi, int idx)
1484 {
1485         return (unsigned char)snd_ca0106_ptr_read((struct snd_ca0106 *)(midi->dev_id),
1486                                                   midi->port + idx, 0);
1487 }
1488
1489 static void ca0106_midi_write(struct snd_ca_midi *midi, int data, int idx)
1490 {
1491         snd_ca0106_ptr_write((struct snd_ca0106 *)(midi->dev_id), midi->port + idx, 0, data);
1492 }
1493
1494 static struct snd_card *ca0106_dev_id_card(void *dev_id)
1495 {
1496         return ((struct snd_ca0106 *)dev_id)->card;
1497 }
1498
1499 static int ca0106_dev_id_port(void *dev_id)
1500 {
1501         return ((struct snd_ca0106 *)dev_id)->port;
1502 }
1503
1504 static int __devinit snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
1505 {
1506         struct snd_ca_midi *midi;
1507         char *name;
1508         int err;
1509
1510         if (channel == CA0106_MIDI_CHAN_B) {
1511                 name = "CA0106 MPU-401 (UART) B";
1512                 midi =  &chip->midi2;
1513                 midi->tx_enable = INTE_MIDI_TX_B;
1514                 midi->rx_enable = INTE_MIDI_RX_B;
1515                 midi->ipr_tx = IPR_MIDI_TX_B;
1516                 midi->ipr_rx = IPR_MIDI_RX_B;
1517                 midi->port = MIDI_UART_B_DATA;
1518         } else {
1519                 name = "CA0106 MPU-401 (UART)";
1520                 midi =  &chip->midi;
1521                 midi->tx_enable = INTE_MIDI_TX_A;
1522                 midi->rx_enable = INTE_MIDI_TX_B;
1523                 midi->ipr_tx = IPR_MIDI_TX_A;
1524                 midi->ipr_rx = IPR_MIDI_RX_A;
1525                 midi->port = MIDI_UART_A_DATA;
1526         }
1527
1528         midi->reset = CA0106_MPU401_RESET;
1529         midi->enter_uart = CA0106_MPU401_ENTER_UART;
1530         midi->ack = CA0106_MPU401_ACK;
1531
1532         midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1533         midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1534
1535         midi->channel = channel;
1536
1537         midi->interrupt_enable = ca0106_midi_interrupt_enable;
1538         midi->interrupt_disable = ca0106_midi_interrupt_disable;
1539
1540         midi->read = ca0106_midi_read;
1541         midi->write = ca0106_midi_write;
1542
1543         midi->get_dev_id_card = ca0106_dev_id_card;
1544         midi->get_dev_id_port = ca0106_dev_id_port;
1545
1546         midi->dev_id = chip;
1547
1548         if ((err = ca_midi_init(chip, midi, 0, name)) < 0)
1549                 return err;
1550
1551         return 0;
1552 }
1553
1554
1555 static int __devinit snd_ca0106_probe(struct pci_dev *pci,
1556                                         const struct pci_device_id *pci_id)
1557 {
1558         static int dev;
1559         struct snd_card *card;
1560         struct snd_ca0106 *chip;
1561         int err;
1562
1563         if (dev >= SNDRV_CARDS)
1564                 return -ENODEV;
1565         if (!enable[dev]) {
1566                 dev++;
1567                 return -ENOENT;
1568         }
1569
1570         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
1571         if (card == NULL)
1572                 return -ENOMEM;
1573
1574         if ((err = snd_ca0106_create(dev, card, pci, &chip)) < 0) {
1575                 snd_card_free(card);
1576                 return err;
1577         }
1578
1579         if ((err = snd_ca0106_pcm(chip, 0, NULL)) < 0) {
1580                 snd_card_free(card);
1581                 return err;
1582         }
1583         if ((err = snd_ca0106_pcm(chip, 1, NULL)) < 0) {
1584                 snd_card_free(card);
1585                 return err;
1586         }
1587         if ((err = snd_ca0106_pcm(chip, 2, NULL)) < 0) {
1588                 snd_card_free(card);
1589                 return err;
1590         }
1591         if ((err = snd_ca0106_pcm(chip, 3, NULL)) < 0) {
1592                 snd_card_free(card);
1593                 return err;
1594         }
1595         if (chip->details->ac97 == 1) { /* The SB0410 and SB0413 do not have an AC97 chip. */
1596                 if ((err = snd_ca0106_ac97(chip)) < 0) {
1597                         snd_card_free(card);
1598                         return err;
1599                 }
1600         }
1601         if ((err = snd_ca0106_mixer(chip)) < 0) {
1602                 snd_card_free(card);
1603                 return err;
1604         }
1605
1606         snd_printdd("ca0106: probe for MIDI channel A ...");
1607         if ((err = snd_ca0106_midi(chip,CA0106_MIDI_CHAN_A)) < 0) {
1608                 snd_card_free(card);
1609                 snd_printdd(" failed, err=0x%x\n",err);
1610                 return err;
1611         }
1612         snd_printdd(" done.\n");
1613
1614 #ifdef CONFIG_PROC_FS
1615         snd_ca0106_proc_init(chip);
1616 #endif
1617
1618         snd_card_set_dev(card, &pci->dev);
1619
1620         if ((err = snd_card_register(card)) < 0) {
1621                 snd_card_free(card);
1622                 return err;
1623         }
1624
1625         pci_set_drvdata(pci, card);
1626         dev++;
1627         return 0;
1628 }
1629
1630 static void __devexit snd_ca0106_remove(struct pci_dev *pci)
1631 {
1632         snd_card_free(pci_get_drvdata(pci));
1633         pci_set_drvdata(pci, NULL);
1634 }
1635
1636 // PCI IDs
1637 static struct pci_device_id snd_ca0106_ids[] = {
1638         { 0x1102, 0x0007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },    /* Audigy LS or Live 24bit */
1639         { 0, }
1640 };
1641 MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1642
1643 // pci_driver definition
1644 static struct pci_driver driver = {
1645         .name = "CA0106",
1646         .id_table = snd_ca0106_ids,
1647         .probe = snd_ca0106_probe,
1648         .remove = __devexit_p(snd_ca0106_remove),
1649 };
1650
1651 // initialization of the module
1652 static int __init alsa_card_ca0106_init(void)
1653 {
1654         return pci_register_driver(&driver);
1655 }
1656
1657 // clean up the module
1658 static void __exit alsa_card_ca0106_exit(void)
1659 {
1660         pci_unregister_driver(&driver);
1661 }
1662
1663 module_init(alsa_card_ca0106_init)
1664 module_exit(alsa_card_ca0106_exit)