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 list_head *pos;
 779         struct snd_pcm_substream *s;
 780         u32 basic = 0;
 781         u32 extended = 0;
 782         int running=0;
 783
 784         switch (cmd) {
 785         case SNDRV_PCM_TRIGGER_START:
 786                 running=1;
 787                 break;
 788         case SNDRV_PCM_TRIGGER_STOP:
 789         default:
 790                 running=0;
 791                 break;
 792         }
 793         snd_pcm_group_for_each(pos, substream) {
 794                 s = snd_pcm_group_substream_entry(pos);
 795                 runtime = s->runtime;
 796                 epcm = runtime->private_data;
 797                 channel = epcm->channel_id;
 798                 //snd_printk("channel=%d\n",channel);
 799                 epcm->running = running;
 800                 basic |= (0x1<<channel);
 801                 extended |= (0x10<<channel);
 802                 snd_pcm_trigger_done(s, substream);
 803         }
 804         //snd_printk("basic=0x%x, extended=0x%x\n",basic, extended);
 805
 806         switch (cmd) {
 807         case SNDRV_PCM_TRIGGER_START:
 808                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (extended));
 809                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(basic));
 810                 break;
 811         case SNDRV_PCM_TRIGGER_STOP:
 812                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(basic));
 813                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(extended));
 814                 break;
 815         default:
 816                 result = -EINVAL;
 817                 break;
 818         }
 819         return result;
 820 }
 821
 822 /* trigger_capture callback */
 823 static int snd_ca0106_pcm_trigger_capture(struct snd_pcm_substream *substream,
 824                                     int cmd)
 825 {
 826         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 827         struct snd_pcm_runtime *runtime = substream->runtime;
 828         struct snd_ca0106_pcm *epcm = runtime->private_data;
 829         int channel = epcm->channel_id;
 830         int result = 0;
 831
 832         switch (cmd) {
 833         case SNDRV_PCM_TRIGGER_START:
 834                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
 835                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
 836                 epcm->running = 1;
 837                 break;
 838         case SNDRV_PCM_TRIGGER_STOP:
 839                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
 840                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
 841                 epcm->running = 0;
 842                 break;
 843         default:
 844                 result = -EINVAL;
 845                 break;
 846         }
 847         return result;
 848 }
 849
 850 /* pointer_playback callback */
 851 static snd_pcm_uframes_t
 852 snd_ca0106_pcm_pointer_playback(struct snd_pcm_substream *substream)
 853 {
 854         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 855         struct snd_pcm_runtime *runtime = substream->runtime;
 856         struct snd_ca0106_pcm *epcm = runtime->private_data;
 857         snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
 858         int channel = epcm->channel_id;
 859
 860         if (!epcm->running)
 861                 return 0;
 862
 863         ptr3 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
 864         ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
 865         ptr4 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
 866         if (ptr3 != ptr4) ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
 867         ptr2 = bytes_to_frames(runtime, ptr1);
 868         ptr2+= (ptr4 >> 3) * runtime->period_size;
 869         ptr=ptr2;
 870         if (ptr >= runtime->buffer_size)
 871                 ptr -= runtime->buffer_size;
 872         //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);
 873
 874         return ptr;
 875 }
 876
 877 /* pointer_capture callback */
 878 static snd_pcm_uframes_t
 879 snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream *substream)
 880 {
 881         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 882         struct snd_pcm_runtime *runtime = substream->runtime;
 883         struct snd_ca0106_pcm *epcm = runtime->private_data;
 884         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
 885         int channel = channel=epcm->channel_id;
 886
 887         if (!epcm->running)
 888                 return 0;
 889
 890         ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
 891         ptr2 = bytes_to_frames(runtime, ptr1);
 892         ptr=ptr2;
 893         if (ptr >= runtime->buffer_size)
 894                 ptr -= runtime->buffer_size;
 895         //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);
 896
 897         return ptr;
 898 }
 899
 900 /* operators */
 901 static struct snd_pcm_ops snd_ca0106_playback_front_ops = {
 902         .open =        snd_ca0106_pcm_open_playback_front,
 903         .close =       snd_ca0106_pcm_close_playback,
 904         .ioctl =       snd_pcm_lib_ioctl,
 905         .hw_params =   snd_ca0106_pcm_hw_params_playback,
 906         .hw_free =     snd_ca0106_pcm_hw_free_playback,
 907         .prepare =     snd_ca0106_pcm_prepare_playback,
 908         .trigger =     snd_ca0106_pcm_trigger_playback,
 909         .pointer =     snd_ca0106_pcm_pointer_playback,
 910 };
 911
 912 static struct snd_pcm_ops snd_ca0106_capture_0_ops = {
 913         .open =        snd_ca0106_pcm_open_0_capture,
 914         .close =       snd_ca0106_pcm_close_capture,
 915         .ioctl =       snd_pcm_lib_ioctl,
 916         .hw_params =   snd_ca0106_pcm_hw_params_capture,
 917         .hw_free =     snd_ca0106_pcm_hw_free_capture,
 918         .prepare =     snd_ca0106_pcm_prepare_capture,
 919         .trigger =     snd_ca0106_pcm_trigger_capture,
 920         .pointer =     snd_ca0106_pcm_pointer_capture,
 921 };
 922
 923 static struct snd_pcm_ops snd_ca0106_capture_1_ops = {
 924         .open =        snd_ca0106_pcm_open_1_capture,
 925         .close =       snd_ca0106_pcm_close_capture,
 926         .ioctl =       snd_pcm_lib_ioctl,
 927         .hw_params =   snd_ca0106_pcm_hw_params_capture,
 928         .hw_free =     snd_ca0106_pcm_hw_free_capture,
 929         .prepare =     snd_ca0106_pcm_prepare_capture,
 930         .trigger =     snd_ca0106_pcm_trigger_capture,
 931         .pointer =     snd_ca0106_pcm_pointer_capture,
 932 };
 933
 934 static struct snd_pcm_ops snd_ca0106_capture_2_ops = {
 935         .open =        snd_ca0106_pcm_open_2_capture,
 936         .close =       snd_ca0106_pcm_close_capture,
 937         .ioctl =       snd_pcm_lib_ioctl,
 938         .hw_params =   snd_ca0106_pcm_hw_params_capture,
 939         .hw_free =     snd_ca0106_pcm_hw_free_capture,
 940         .prepare =     snd_ca0106_pcm_prepare_capture,
 941         .trigger =     snd_ca0106_pcm_trigger_capture,
 942         .pointer =     snd_ca0106_pcm_pointer_capture,
 943 };
 944
 945 static struct snd_pcm_ops snd_ca0106_capture_3_ops = {
 946         .open =        snd_ca0106_pcm_open_3_capture,
 947         .close =       snd_ca0106_pcm_close_capture,
 948         .ioctl =       snd_pcm_lib_ioctl,
 949         .hw_params =   snd_ca0106_pcm_hw_params_capture,
 950         .hw_free =     snd_ca0106_pcm_hw_free_capture,
 951         .prepare =     snd_ca0106_pcm_prepare_capture,
 952         .trigger =     snd_ca0106_pcm_trigger_capture,
 953         .pointer =     snd_ca0106_pcm_pointer_capture,
 954 };
 955
 956 static struct snd_pcm_ops snd_ca0106_playback_center_lfe_ops = {
 957         .open =         snd_ca0106_pcm_open_playback_center_lfe,
 958         .close =        snd_ca0106_pcm_close_playback,
 959         .ioctl =        snd_pcm_lib_ioctl,
 960         .hw_params =    snd_ca0106_pcm_hw_params_playback,
 961         .hw_free =      snd_ca0106_pcm_hw_free_playback,
 962         .prepare =      snd_ca0106_pcm_prepare_playback,
 963         .trigger =      snd_ca0106_pcm_trigger_playback,
 964         .pointer =      snd_ca0106_pcm_pointer_playback,
 965 };
 966
 967 static struct snd_pcm_ops snd_ca0106_playback_unknown_ops = {
 968         .open =         snd_ca0106_pcm_open_playback_unknown,
 969         .close =        snd_ca0106_pcm_close_playback,
 970         .ioctl =        snd_pcm_lib_ioctl,
 971         .hw_params =    snd_ca0106_pcm_hw_params_playback,
 972         .hw_free =      snd_ca0106_pcm_hw_free_playback,
 973         .prepare =      snd_ca0106_pcm_prepare_playback,
 974         .trigger =      snd_ca0106_pcm_trigger_playback,
 975         .pointer =      snd_ca0106_pcm_pointer_playback,
 976 };
 977
 978 static struct snd_pcm_ops snd_ca0106_playback_rear_ops = {
 979         .open =         snd_ca0106_pcm_open_playback_rear,
 980         .close =        snd_ca0106_pcm_close_playback,
 981         .ioctl =        snd_pcm_lib_ioctl,
 982         .hw_params =    snd_ca0106_pcm_hw_params_playback,
 983                 .hw_free =      snd_ca0106_pcm_hw_free_playback,
 984         .prepare =      snd_ca0106_pcm_prepare_playback,
 985         .trigger =      snd_ca0106_pcm_trigger_playback,
 986         .pointer =      snd_ca0106_pcm_pointer_playback,
 987 };
 988
 989
 990 static unsigned short snd_ca0106_ac97_read(struct snd_ac97 *ac97,
 991                                              unsigned short reg)
 992 {
 993         struct snd_ca0106 *emu = ac97->private_data;
 994         unsigned long flags;
 995         unsigned short val;
 996
 997         spin_lock_irqsave(&emu->emu_lock, flags);
 998         outb(reg, emu->port + AC97ADDRESS);
 999         val = inw(emu->port + AC97DATA);
1000         spin_unlock_irqrestore(&emu->emu_lock, flags);
1001         return val;
1002 }
1003
1004 static void snd_ca0106_ac97_write(struct snd_ac97 *ac97,
1005                                     unsigned short reg, unsigned short val)
1006 {
1007         struct snd_ca0106 *emu = ac97->private_data;
1008         unsigned long flags;
1009
1010         spin_lock_irqsave(&emu->emu_lock, flags);
1011         outb(reg, emu->port + AC97ADDRESS);
1012         outw(val, emu->port + AC97DATA);
1013         spin_unlock_irqrestore(&emu->emu_lock, flags);
1014 }
1015
1016 static int snd_ca0106_ac97(struct snd_ca0106 *chip)
1017 {
1018         struct snd_ac97_bus *pbus;
1019         struct snd_ac97_template ac97;
1020         int err;
1021         static struct snd_ac97_bus_ops ops = {
1022                 .write = snd_ca0106_ac97_write,
1023                 .read = snd_ca0106_ac97_read,
1024         };
1025
1026         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
1027                 return err;
1028         pbus->no_vra = 1; /* we don't need VRA */
1029
1030         memset(&ac97, 0, sizeof(ac97));
1031         ac97.private_data = chip;
1032         ac97.scaps = AC97_SCAP_NO_SPDIF;
1033         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1034 }
1035
1036 static int snd_ca0106_free(struct snd_ca0106 *chip)
1037 {
1038         if (chip->res_port != NULL) {    /* avoid access to already used hardware */
1039                 // disable interrupts
1040                 snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
1041                 outl(0, chip->port + INTE);
1042                 snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
1043                 udelay(1000);
1044                 // disable audio
1045                 //outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG);
1046                 outl(0, chip->port + HCFG);
1047                 /* FIXME: We need to stop and DMA transfers here.
1048                  *        But as I am not sure how yet, we cannot from the dma pages.
1049                  * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
1050                  */
1051         }
1052         // release the data
1053 #if 1
1054         if (chip->buffer.area)
1055                 snd_dma_free_pages(&chip->buffer);
1056 #endif
1057
1058         // release the i/o port
1059         release_and_free_resource(chip->res_port);
1060
1061         // release the irq
1062         if (chip->irq >= 0)
1063                 free_irq(chip->irq, chip);
1064         pci_disable_device(chip->pci);
1065         kfree(chip);
1066         return 0;
1067 }
1068
1069 static int snd_ca0106_dev_free(struct snd_device *device)
1070 {
1071         struct snd_ca0106 *chip = device->device_data;
1072         return snd_ca0106_free(chip);
1073 }
1074
1075 static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
1076 {
1077         unsigned int status;
1078
1079         struct snd_ca0106 *chip = dev_id;
1080         int i;
1081         int mask;
1082         unsigned int stat76;
1083         struct snd_ca0106_channel *pchannel;
1084
1085         status = inl(chip->port + IPR);
1086         if (! status)
1087                 return IRQ_NONE;
1088
1089         stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1090         //snd_printk("interrupt status = 0x%08x, stat76=0x%08x\n", status, stat76);
1091         //snd_printk("ptr=0x%08x\n",snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1092         mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1093         for(i = 0; i < 4; i++) {
1094                 pchannel = &(chip->playback_channels[i]);
1095                 if (stat76 & mask) {
1096 /* FIXME: Select the correct substream for period elapsed */
1097                         if(pchannel->use) {
1098                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1099                                 //printk(KERN_INFO "interrupt [%d] used\n", i);
1100                         }
1101                 }
1102                 //printk(KERN_INFO "channel=%p\n",pchannel);
1103                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1104                 mask <<= 1;
1105         }
1106         mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1107         for(i = 0; i < 4; i++) {
1108                 pchannel = &(chip->capture_channels[i]);
1109                 if (stat76 & mask) {
1110 /* FIXME: Select the correct substream for period elapsed */
1111                         if(pchannel->use) {
1112                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1113                                 //printk(KERN_INFO "interrupt [%d] used\n", i);
1114                         }
1115                 }
1116                 //printk(KERN_INFO "channel=%p\n",pchannel);
1117                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1118                 mask <<= 1;
1119         }
1120
1121         snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1122
1123         if (chip->midi.dev_id &&
1124             (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1125                 if (chip->midi.interrupt)
1126                         chip->midi.interrupt(&chip->midi, status);
1127                 else
1128                         chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1129         }
1130
1131         // acknowledge the interrupt if necessary
1132         outl(status, chip->port+IPR);
1133
1134         return IRQ_HANDLED;
1135 }
1136
1137 static int __devinit snd_ca0106_pcm(struct snd_ca0106 *emu, int device, struct snd_pcm **rpcm)
1138 {
1139         struct snd_pcm *pcm;
1140         struct snd_pcm_substream *substream;
1141         int err;
1142
1143         if (rpcm)
1144                 *rpcm = NULL;
1145         if ((err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm)) < 0)
1146                 return err;
1147
1148         pcm->private_data = emu;
1149
1150         switch (device) {
1151         case 0:
1152           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1153           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1154           break;
1155         case 1:
1156           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1157           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1158           break;
1159         case 2:
1160           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1161           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1162           break;
1163         case 3:
1164           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1165           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1166           break;
1167         }
1168
1169         pcm->info_flags = 0;
1170         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1171         strcpy(pcm->name, "CA0106");
1172         emu->pcm = pcm;
1173
1174         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
1175             substream;
1176             substream = substream->next) {
1177                 if ((err = snd_pcm_lib_preallocate_pages(substream,
1178                                                          SNDRV_DMA_TYPE_DEV,
1179                                                          snd_dma_pci_data(emu->pci),
1180                                                          64*1024, 64*1024)) < 0) /* FIXME: 32*1024 for sound buffer, between 32and64 for Periods table. */
1181                         return err;
1182         }
1183
1184         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
1185               substream;
1186               substream = substream->next) {
1187                 if ((err = snd_pcm_lib_preallocate_pages(substream,
1188                                                    SNDRV_DMA_TYPE_DEV,
1189                                                    snd_dma_pci_data(emu->pci),
1190                                                    64*1024, 64*1024)) < 0)
1191                         return err;
1192         }
1193
1194         if (rpcm)
1195                 *rpcm = pcm;
1196
1197         return 0;
1198 }
1199
1200 static unsigned int spi_dac_init[] = {
1201         0x00ff,
1202         0x02ff,
1203         0x0400,
1204         0x0520,
1205         0x0620, /* Set 24 bit. Was 0x0600 */
1206         0x08ff,
1207         0x0aff,
1208         0x0cff,
1209         0x0eff,
1210         0x10ff,
1211         0x1200,
1212         0x1400,
1213         0x1480,
1214         0x1800,
1215         0x1aff,
1216         0x1cff,
1217         0x1e00,
1218         0x0530,
1219         0x0602,
1220         0x0622,
1221         0x1400,
1222 };
1223
1224 static unsigned int i2c_adc_init[][2] = {
1225         { 0x17, 0x00 }, /* Reset */
1226         { 0x07, 0x00 }, /* Timeout */
1227         { 0x0b, 0x22 },  /* Interface control */
1228         { 0x0c, 0x22 },  /* Master mode control */
1229         { 0x0d, 0x08 },  /* Powerdown control */
1230         { 0x0e, 0xcf },  /* Attenuation Left  0x01 = -103dB, 0xff = 24dB */
1231         { 0x0f, 0xcf },  /* Attenuation Right 0.5dB steps */
1232         { 0x10, 0x7b },  /* ALC Control 1 */
1233         { 0x11, 0x00 },  /* ALC Control 2 */
1234         { 0x12, 0x32 },  /* ALC Control 3 */
1235         { 0x13, 0x00 },  /* Noise gate control */
1236         { 0x14, 0xa6 },  /* Limiter control */
1237         { 0x15, ADC_MUX_LINEIN },  /* ADC Mixer control */
1238 };
1239
1240 static int __devinit snd_ca0106_create(int dev, struct snd_card *card,
1241                                          struct pci_dev *pci,
1242                                          struct snd_ca0106 **rchip)
1243 {
1244         struct snd_ca0106 *chip;
1245         struct snd_ca0106_details *c;
1246         int err;
1247         int ch;
1248         static struct snd_device_ops ops = {
1249                 .dev_free = snd_ca0106_dev_free,
1250         };
1251
1252         *rchip = NULL;
1253
1254         if ((err = pci_enable_device(pci)) < 0)
1255                 return err;
1256         if (pci_set_dma_mask(pci, DMA_32BIT_MASK) < 0 ||
1257             pci_set_consistent_dma_mask(pci, DMA_32BIT_MASK) < 0) {
1258                 printk(KERN_ERR "error to set 32bit mask DMA\n");
1259                 pci_disable_device(pci);
1260                 return -ENXIO;
1261         }
1262
1263         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1264         if (chip == NULL) {
1265                 pci_disable_device(pci);
1266                 return -ENOMEM;
1267         }
1268
1269         chip->card = card;
1270         chip->pci = pci;
1271         chip->irq = -1;
1272
1273         spin_lock_init(&chip->emu_lock);
1274
1275         chip->port = pci_resource_start(pci, 0);
1276         if ((chip->res_port = request_region(chip->port, 0x20,
1277                                              "snd_ca0106")) == NULL) {
1278                 snd_ca0106_free(chip);
1279                 printk(KERN_ERR "cannot allocate the port\n");
1280                 return -EBUSY;
1281         }
1282
1283         if (request_irq(pci->irq, snd_ca0106_interrupt,
1284                         IRQF_SHARED, "snd_ca0106", chip)) {
1285                 snd_ca0106_free(chip);
1286                 printk(KERN_ERR "cannot grab irq\n");
1287                 return -EBUSY;
1288         }
1289         chip->irq = pci->irq;
1290
1291         /* This stores the periods table. */
1292         if(snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci), 1024, &chip->buffer) < 0) {
1293                 snd_ca0106_free(chip);
1294                 return -ENOMEM;
1295         }
1296
1297         pci_set_master(pci);
1298         /* read revision & serial */
1299         pci_read_config_byte(pci, PCI_REVISION_ID, &chip->revision);
1300         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1301         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1302 #if 1
1303         printk(KERN_INFO "snd-ca0106: Model %04x Rev %08x Serial %08x\n", chip->model,
1304                chip->revision, chip->serial);
1305 #endif
1306         strcpy(card->driver, "CA0106");
1307         strcpy(card->shortname, "CA0106");
1308
1309         for (c = ca0106_chip_details; c->serial; c++) {
1310                 if (subsystem[dev]) {
1311                         if (c->serial == subsystem[dev])
1312                                 break;
1313                 } else if (c->serial == chip->serial)
1314                         break;
1315         }
1316         chip->details = c;
1317         if (subsystem[dev]) {
1318                 printk(KERN_INFO "snd-ca0106: Sound card name=%s, subsystem=0x%x. Forced to subsystem=0x%x\n",
1319                         c->name, chip->serial, subsystem[dev]);
1320         }
1321
1322         sprintf(card->longname, "%s at 0x%lx irq %i",
1323                 c->name, chip->port, chip->irq);
1324
1325         outl(0, chip->port + INTE);
1326
1327         /*
1328          *  Init to 0x02109204 :
1329          *  Clock accuracy    = 0     (1000ppm)
1330          *  Sample Rate       = 2     (48kHz)
1331          *  Audio Channel     = 1     (Left of 2)
1332          *  Source Number     = 0     (Unspecified)
1333          *  Generation Status = 1     (Original for Cat Code 12)
1334          *  Cat Code          = 12    (Digital Signal Mixer)
1335          *  Mode              = 0     (Mode 0)
1336          *  Emphasis          = 0     (None)
1337          *  CP                = 1     (Copyright unasserted)
1338          *  AN                = 0     (Audio data)
1339          *  P                 = 0     (Consumer)
1340          */
1341         snd_ca0106_ptr_write(chip, SPCS0, 0,
1342                                 chip->spdif_bits[0] =
1343                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1344                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1345                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1346                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1347         /* Only SPCS1 has been tested */
1348         snd_ca0106_ptr_write(chip, SPCS1, 0,
1349                                 chip->spdif_bits[1] =
1350                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1351                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1352                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1353                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1354         snd_ca0106_ptr_write(chip, SPCS2, 0,
1355                                 chip->spdif_bits[2] =
1356                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1357                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1358                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1359                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1360         snd_ca0106_ptr_write(chip, SPCS3, 0,
1361                                 chip->spdif_bits[3] =
1362                                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1363                                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1364                                 SPCS_GENERATIONSTATUS | 0x00001200 |
1365                                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1366
1367         snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1368         snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1369
1370         /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1371         outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
1372         outw(0x8000, chip->port + AC97DATA);
1373 #if 0
1374         snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1375         snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1376         snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1377         snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1378 #endif
1379
1380         //snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); /* OSS drivers set this. */
1381         /* Analog or Digital output */
1382         snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1383         snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000); /* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers. Use 0x000f0000 for surround71 */
1384         chip->spdif_enable = 0; /* Set digital SPDIF output off */
1385         chip->capture_source = 3; /* Set CAPTURE_SOURCE */
1386         //snd_ca0106_ptr_write(chip, 0x45, 0, 0); /* Analogue out */
1387         //snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00); /* Digital out */
1388
1389         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000); /* goes to 0x40c80000 when doing SPDIF IN/OUT */
1390         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff); /* (Mute) CAPTURE feedback into PLAYBACK volume. Only lower 16 bits matter. */
1391         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000); /* SPDIF IN Volume */
1392         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000); /* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1393         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1394         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1395         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1396         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1397         for(ch = 0; ch < 4; ch++) {
1398                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030); /* Only high 16 bits matter */
1399                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1400                 //snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040); /* Mute */
1401                 //snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040); /* Mute */
1402                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff); /* Mute */
1403                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff); /* Mute */
1404         }
1405         snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4); /* Select MIC, Line in, TAD in, AUX in */
1406         chip->capture_source = 3; /* Set CAPTURE_SOURCE */
1407
1408         if (chip->details->gpio_type == 2) { /* The SB0438 use GPIO differently. */
1409                 /* FIXME: Still need to find out what the other GPIO bits do. E.g. For digital spdif out. */
1410                 outl(0x0, chip->port+GPIO);
1411                 //outl(0x00f0e000, chip->port+GPIO); /* Analog */
1412                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1413         } else if (chip->details->gpio_type == 1) { /* The SB0410 and SB0413 use GPIO differently. */
1414                 /* FIXME: Still need to find out what the other GPIO bits do. E.g. For digital spdif out. */
1415                 outl(0x0, chip->port+GPIO);
1416                 //outl(0x00f0e000, chip->port+GPIO); /* Analog */
1417                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1418         } else {
1419                 outl(0x0, chip->port+GPIO);
1420                 outl(0x005f03a3, chip->port+GPIO); /* Analog */
1421                 //outl(0x005f02a2, chip->port+GPIO);   /* SPDIF */
1422         }
1423         snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1424
1425         //outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG);
1426         //outl(0x00001409, chip->port+HCFG); /* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1427         //outl(0x00000009, chip->port+HCFG);
1428         outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG); /* AC97 2.0, Enable outputs. */
1429
1430         if (chip->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
1431                 int size, n;
1432
1433                 size = ARRAY_SIZE(i2c_adc_init);
1434                 //snd_printk("I2C:array size=0x%x\n", size);
1435                 for (n=0; n < size; n++) {
1436                         snd_ca0106_i2c_write(chip, i2c_adc_init[n][0], i2c_adc_init[n][1]);
1437                 }
1438                 for (n=0; n < 4; n++) {
1439                         chip->i2c_capture_volume[n][0]= 0xcf;
1440                         chip->i2c_capture_volume[n][1]= 0xcf;
1441                 }
1442                 chip->i2c_capture_source=2; /* Line in */
1443                 //snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); /* Enable Line-in capture. MIC in currently untested. */
1444         }
1445         if (chip->details->spi_dac == 1) { /* The SB0570 use SPI to control DAC. */
1446                 int size, n;
1447
1448                 size = ARRAY_SIZE(spi_dac_init);
1449                 for (n=0; n < size; n++)
1450                         snd_ca0106_spi_write(chip, spi_dac_init[n]);
1451         }
1452
1453         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
1454                                   chip, &ops)) < 0) {
1455                 snd_ca0106_free(chip);
1456                 return err;
1457         }
1458         *rchip = chip;
1459         return 0;
1460 }
1461
1462
1463 static void ca0106_midi_interrupt_enable(struct snd_ca_midi *midi, int intr)
1464 {
1465         snd_ca0106_intr_enable((struct snd_ca0106 *)(midi->dev_id), intr);
1466 }
1467
1468 static void ca0106_midi_interrupt_disable(struct snd_ca_midi *midi, int intr)
1469 {
1470         snd_ca0106_intr_disable((struct snd_ca0106 *)(midi->dev_id), intr);
1471 }
1472
1473 static unsigned char ca0106_midi_read(struct snd_ca_midi *midi, int idx)
1474 {
1475         return (unsigned char)snd_ca0106_ptr_read((struct snd_ca0106 *)(midi->dev_id),
1476                                                   midi->port + idx, 0);
1477 }
1478
1479 static void ca0106_midi_write(struct snd_ca_midi *midi, int data, int idx)
1480 {
1481         snd_ca0106_ptr_write((struct snd_ca0106 *)(midi->dev_id), midi->port + idx, 0, data);
1482 }
1483
1484 static struct snd_card *ca0106_dev_id_card(void *dev_id)
1485 {
1486         return ((struct snd_ca0106 *)dev_id)->card;
1487 }
1488
1489 static int ca0106_dev_id_port(void *dev_id)
1490 {
1491         return ((struct snd_ca0106 *)dev_id)->port;
1492 }
1493
1494 static int __devinit snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
1495 {
1496         struct snd_ca_midi *midi;
1497         char *name;
1498         int err;
1499
1500         if (channel == CA0106_MIDI_CHAN_B) {
1501                 name = "CA0106 MPU-401 (UART) B";
1502                 midi =  &chip->midi2;
1503                 midi->tx_enable = INTE_MIDI_TX_B;
1504                 midi->rx_enable = INTE_MIDI_RX_B;
1505                 midi->ipr_tx = IPR_MIDI_TX_B;
1506                 midi->ipr_rx = IPR_MIDI_RX_B;
1507                 midi->port = MIDI_UART_B_DATA;
1508         } else {
1509                 name = "CA0106 MPU-401 (UART)";
1510                 midi =  &chip->midi;
1511                 midi->tx_enable = INTE_MIDI_TX_A;
1512                 midi->rx_enable = INTE_MIDI_TX_B;
1513                 midi->ipr_tx = IPR_MIDI_TX_A;
1514                 midi->ipr_rx = IPR_MIDI_RX_A;
1515                 midi->port = MIDI_UART_A_DATA;
1516         }
1517
1518         midi->reset = CA0106_MPU401_RESET;
1519         midi->enter_uart = CA0106_MPU401_ENTER_UART;
1520         midi->ack = CA0106_MPU401_ACK;
1521
1522         midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1523         midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1524
1525         midi->channel = channel;
1526
1527         midi->interrupt_enable = ca0106_midi_interrupt_enable;
1528         midi->interrupt_disable = ca0106_midi_interrupt_disable;
1529
1530         midi->read = ca0106_midi_read;
1531         midi->write = ca0106_midi_write;
1532
1533         midi->get_dev_id_card = ca0106_dev_id_card;
1534         midi->get_dev_id_port = ca0106_dev_id_port;
1535
1536         midi->dev_id = chip;
1537
1538         if ((err = ca_midi_init(chip, midi, 0, name)) < 0)
1539                 return err;
1540
1541         return 0;
1542 }
1543
1544
1545 static int __devinit snd_ca0106_probe(struct pci_dev *pci,
1546                                         const struct pci_device_id *pci_id)
1547 {
1548         static int dev;
1549         struct snd_card *card;
1550         struct snd_ca0106 *chip;
1551         int err;
1552
1553         if (dev >= SNDRV_CARDS)
1554                 return -ENODEV;
1555         if (!enable[dev]) {
1556                 dev++;
1557                 return -ENOENT;
1558         }
1559
1560         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
1561         if (card == NULL)
1562                 return -ENOMEM;
1563
1564         if ((err = snd_ca0106_create(dev, card, pci, &chip)) < 0) {
1565                 snd_card_free(card);
1566                 return err;
1567         }
1568
1569         if ((err = snd_ca0106_pcm(chip, 0, NULL)) < 0) {
1570                 snd_card_free(card);
1571                 return err;
1572         }
1573         if ((err = snd_ca0106_pcm(chip, 1, NULL)) < 0) {
1574                 snd_card_free(card);
1575                 return err;
1576         }
1577         if ((err = snd_ca0106_pcm(chip, 2, NULL)) < 0) {
1578                 snd_card_free(card);
1579                 return err;
1580         }
1581         if ((err = snd_ca0106_pcm(chip, 3, NULL)) < 0) {
1582                 snd_card_free(card);
1583                 return err;
1584         }
1585         if (chip->details->ac97 == 1) { /* The SB0410 and SB0413 do not have an AC97 chip. */
1586                 if ((err = snd_ca0106_ac97(chip)) < 0) {
1587                         snd_card_free(card);
1588                         return err;
1589                 }
1590         }
1591         if ((err = snd_ca0106_mixer(chip)) < 0) {
1592                 snd_card_free(card);
1593                 return err;
1594         }
1595
1596         snd_printdd("ca0106: probe for MIDI channel A ...");
1597         if ((err = snd_ca0106_midi(chip,CA0106_MIDI_CHAN_A)) < 0) {
1598                 snd_card_free(card);
1599                 snd_printdd(" failed, err=0x%x\n",err);
1600                 return err;
1601         }
1602         snd_printdd(" done.\n");
1603
1604 #ifdef CONFIG_PROC_FS
1605         snd_ca0106_proc_init(chip);
1606 #endif
1607
1608         if ((err = snd_card_register(card)) < 0) {
1609                 snd_card_free(card);
1610                 return err;
1611         }
1612
1613         pci_set_drvdata(pci, card);
1614         dev++;
1615         return 0;
1616 }
1617
1618 static void __devexit snd_ca0106_remove(struct pci_dev *pci)
1619 {
1620         snd_card_free(pci_get_drvdata(pci));
1621         pci_set_drvdata(pci, NULL);
1622 }
1623
1624 // PCI IDs
1625 static struct pci_device_id snd_ca0106_ids[] = {
1626         { 0x1102, 0x0007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },    /* Audigy LS or Live 24bit */
1627         { 0, }
1628 };
1629 MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1630
1631 // pci_driver definition
1632 static struct pci_driver driver = {
1633         .name = "CA0106",
1634         .id_table = snd_ca0106_ids,
1635         .probe = snd_ca0106_probe,
1636         .remove = __devexit_p(snd_ca0106_remove),
1637 };
1638
1639 // initialization of the module
1640 static int __init alsa_card_ca0106_init(void)
1641 {
1642         return pci_register_driver(&driver);
1643 }
1644
1645 // clean up the module
1646 static void __exit alsa_card_ca0106_exit(void)
1647 {
1648         pci_unregister_driver(&driver);
1649 }
1650
1651 module_init(alsa_card_ca0106_init)
1652 module_exit(alsa_card_ca0106_exit)