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: 0.0.25
   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  *  0.0.24
  83  *    Add support for mute control on SB Live 24bit (cards w/ SPI DAC)
  84  *  0.0.25
  85  *    Powerdown SPI DAC channels when not in use
  86  *
  87  *  BUGS:
  88  *    Some stability problems when unloading the snd-ca0106 kernel module.
  89  *    --
  90  *
  91  *  TODO:
  92  *    4 Capture channels, only one implemented so far.
  93  *    Other capture rates apart from 48khz not implemented.
  94  *    MIDI
  95  *    --
  96  *  GENERAL INFO:
  97  *    Model: SB0310
  98  *    P17 Chip: CA0106-DAT
  99  *    AC97 Codec: STAC 9721
 100  *    ADC: Philips 1361T (Stereo 24bit)
 101  *    DAC: WM8746EDS (6-channel, 24bit, 192Khz)
 102  *
 103  *  GENERAL INFO:
 104  *    Model: SB0410
 105  *    P17 Chip: CA0106-DAT
 106  *    AC97 Codec: None
 107  *    ADC: WM8775EDS (4 Channel)
 108  *    DAC: CS4382 (114 dB, 24-Bit, 192 kHz, 8-Channel D/A Converter with DSD Support)
 109  *    SPDIF Out control switches between Mic in and SPDIF out.
 110  *    No sound out or mic input working yet.
 111  *
 112  *  GENERAL INFO:
 113  *    Model: SB0413
 114  *    P17 Chip: CA0106-DAT
 115  *    AC97 Codec: None.
 116  *    ADC: Unknown
 117  *    DAC: Unknown
 118  *    Trying to handle it like the SB0410.
 119  *
 120  *  This code was initally based on code from ALSA's emu10k1x.c which is:
 121  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
 122  *
 123  *   This program is free software; you can redistribute it and/or modify
 124  *   it under the terms of the GNU General Public License as published by
 125  *   the Free Software Foundation; either version 2 of the License, or
 126  *   (at your option) any later version.
 127  *
 128  *   This program is distributed in the hope that it will be useful,
 129  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 130  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 131  *   GNU General Public License for more details.
 132  *
 133  *   You should have received a copy of the GNU General Public License
 134  *   along with this program; if not, write to the Free Software
 135  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 136  *
 137  */
 138 #include <linux/delay.h>
 139 #include <linux/init.h>
 140 #include <linux/interrupt.h>
 141 #include <linux/pci.h>
 142 #include <linux/slab.h>
 143 #include <linux/moduleparam.h>
 144 #include <linux/dma-mapping.h>
 145 #include <sound/core.h>
 146 #include <sound/initval.h>
 147 #include <sound/pcm.h>
 148 #include <sound/ac97_codec.h>
 149 #include <sound/info.h>
 150
 151 MODULE_AUTHOR("James Courtier-Dutton <James@superbug.demon.co.uk>");
 152 MODULE_DESCRIPTION("CA0106");
 153 MODULE_LICENSE("GPL");
 154 MODULE_SUPPORTED_DEVICE("{{Creative,SB CA0106 chip}}");
 155
 156 // module parameters (see "Module Parameters")
 157 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
 158 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
 159 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
 160 static uint subsystem[SNDRV_CARDS]; /* Force card subsystem model */
 161
 162 module_param_array(index, int, NULL, 0444);
 163 MODULE_PARM_DESC(index, "Index value for the CA0106 soundcard.");
 164 module_param_array(id, charp, NULL, 0444);
 165 MODULE_PARM_DESC(id, "ID string for the CA0106 soundcard.");
 166 module_param_array(enable, bool, NULL, 0444);
 167 MODULE_PARM_DESC(enable, "Enable the CA0106 soundcard.");
 168 module_param_array(subsystem, uint, NULL, 0444);
 169 MODULE_PARM_DESC(subsystem, "Force card subsystem model.");
 170
 171 #include "ca0106.h"
 172
 173 static struct snd_ca0106_details ca0106_chip_details[] = {
 174          /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
 175          /* It is really just a normal SB Live 24bit. */
 176          /* Tested:
 177           * See ALSA bug#3251
 178           */
 179          { .serial = 0x10131102,
 180            .name   = "X-Fi Extreme Audio [SBxxxx]",
 181            .gpio_type = 1,
 182            .i2c_adc = 1 } ,
 183          /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
 184          /* It is really just a normal SB Live 24bit. */
 185          /*
 186           * CTRL:CA0111-WTLF
 187           * ADC: WM8775SEDS
 188           * DAC: CS4382-KQZ
 189           */
 190          /* Tested:
 191           * Playback on front, rear, center/lfe speakers
 192           * Capture from Mic in.
 193           * Not-Tested:
 194           * Capture from Line in.
 195           * Playback to digital out.
 196           */
 197          { .serial = 0x10121102,
 198            .name   = "X-Fi Extreme Audio [SB0790]",
 199            .gpio_type = 1,
 200            .i2c_adc = 1 } ,
 201          /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
 202          /* AudigyLS[SB0310] */
 203          { .serial = 0x10021102,
 204            .name   = "AudigyLS [SB0310]",
 205            .ac97   = 1 } ,
 206          /* Unknown AudigyLS that also says SB0310 on it */
 207          { .serial = 0x10051102,
 208            .name   = "AudigyLS [SB0310b]",
 209            .ac97   = 1 } ,
 210          /* New Sound Blaster Live! 7.1 24bit. This does not have an AC97. 53SB041000001 */
 211          { .serial = 0x10061102,
 212            .name   = "Live! 7.1 24bit [SB0410]",
 213            .gpio_type = 1,
 214            .i2c_adc = 1 } ,
 215          /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
 216          { .serial = 0x10071102,
 217            .name   = "Live! 7.1 24bit [SB0413]",
 218            .gpio_type = 1,
 219            .i2c_adc = 1 } ,
 220          /* New Audigy SE. Has a different DAC. */
 221          /* SB0570:
 222           * CTRL:CA0106-DAT
 223           * ADC: WM8775EDS
 224           * DAC: WM8768GEDS
 225           */
 226          { .serial = 0x100a1102,
 227            .name   = "Audigy SE [SB0570]",
 228            .gpio_type = 1,
 229            .i2c_adc = 1,
 230            .spi_dac = 1 } ,
 231          /* New Audigy LS. Has a different DAC. */
 232          /* SB0570:
 233           * CTRL:CA0106-DAT
 234           * ADC: WM8775EDS
 235           * DAC: WM8768GEDS
 236           */
 237          { .serial = 0x10111102,
 238            .name   = "Audigy SE OEM [SB0570a]",
 239            .gpio_type = 1,
 240            .i2c_adc = 1,
 241            .spi_dac = 1 } ,
 242          /* MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97 */
 243          /* SB0438
 244           * CTRL:CA0106-DAT
 245           * ADC: WM8775SEDS
 246           * DAC: CS4382-KQZ
 247           */
 248          { .serial = 0x10091462,
 249            .name   = "MSI K8N Diamond MB [SB0438]",
 250            .gpio_type = 2,
 251            .i2c_adc = 1 } ,
 252          /* MSI K8N Diamond PLUS MB */
 253          { .serial = 0x10091102,
 254            .name   = "MSI K8N Diamond MB",
 255            .gpio_type = 2,
 256            .i2c_adc = 1,
 257            .spi_dac = 1 } ,
 258          /* Shuttle XPC SD31P which has an onboard Creative Labs
 259           * Sound Blaster Live! 24-bit EAX
 260           * high-definition 7.1 audio processor".
 261           * Added using info from andrewvegan in alsa bug #1298
 262           */
 263          { .serial = 0x30381297,
 264            .name   = "Shuttle XPC SD31P [SD31P]",
 265            .gpio_type = 1,
 266            .i2c_adc = 1 } ,
 267         /* Shuttle XPC SD11G5 which has an onboard Creative Labs
 268          * Sound Blaster Live! 24-bit EAX
 269          * high-definition 7.1 audio processor".
 270          * Fixes ALSA bug#1600
 271          */
 272         { .serial = 0x30411297,
 273           .name = "Shuttle XPC SD11G5 [SD11G5]",
 274           .gpio_type = 1,
 275           .i2c_adc = 1 } ,
 276          { .serial = 0,
 277            .name   = "AudigyLS [Unknown]" }
 278 };
 279
 280 /* hardware definition */
 281 static struct snd_pcm_hardware snd_ca0106_playback_hw = {
 282         .info =                 SNDRV_PCM_INFO_MMAP |
 283                                 SNDRV_PCM_INFO_INTERLEAVED |
 284                                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 285                                 SNDRV_PCM_INFO_MMAP_VALID |
 286                                 SNDRV_PCM_INFO_SYNC_START,
 287         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
 288         .rates =                (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |
 289                                  SNDRV_PCM_RATE_192000),
 290         .rate_min =             48000,
 291         .rate_max =             192000,
 292         .channels_min =         2,  //1,
 293         .channels_max =         2,  //6,
 294         .buffer_bytes_max =     ((65536 - 64) * 8),
 295         .period_bytes_min =     64,
 296         .period_bytes_max =     (65536 - 64),
 297         .periods_min =          2,
 298         .periods_max =          8,
 299         .fifo_size =            0,
 300 };
 301
 302 static struct snd_pcm_hardware snd_ca0106_capture_hw = {
 303         .info =                 (SNDRV_PCM_INFO_MMAP |
 304                                  SNDRV_PCM_INFO_INTERLEAVED |
 305                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 306                                  SNDRV_PCM_INFO_MMAP_VALID),
 307         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
 308 #if 0 /* FIXME: looks like 44.1kHz capture causes noisy output on 48kHz */
 309         .rates =                (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
 310                                  SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
 311         .rate_min =             44100,
 312 #else
 313         .rates =                (SNDRV_PCM_RATE_48000 |
 314                                  SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
 315         .rate_min =             48000,
 316 #endif /* FIXME */
 317         .rate_max =             192000,
 318         .channels_min =         2,
 319         .channels_max =         2,
 320         .buffer_bytes_max =     ((65536 - 64) * 8),
 321         .period_bytes_min =     64,
 322         .period_bytes_max =     (65536 - 64),
 323         .periods_min =          2,
 324         .periods_max =          2,
 325         .fifo_size =            0,
 326 };
 327
 328 unsigned int snd_ca0106_ptr_read(struct snd_ca0106 * emu,
 329                                           unsigned int reg,
 330                                           unsigned int chn)
 331 {
 332         unsigned long flags;
 333         unsigned int regptr, val;
 334
 335         regptr = (reg << 16) | chn;
 336
 337         spin_lock_irqsave(&emu->emu_lock, flags);
 338         outl(regptr, emu->port + PTR);
 339         val = inl(emu->port + DATA);
 340         spin_unlock_irqrestore(&emu->emu_lock, flags);
 341         return val;
 342 }
 343
 344 void snd_ca0106_ptr_write(struct snd_ca0106 *emu,
 345                                    unsigned int reg,
 346                                    unsigned int chn,
 347                                    unsigned int data)
 348 {
 349         unsigned int regptr;
 350         unsigned long flags;
 351
 352         regptr = (reg << 16) | chn;
 353
 354         spin_lock_irqsave(&emu->emu_lock, flags);
 355         outl(regptr, emu->port + PTR);
 356         outl(data, emu->port + DATA);
 357         spin_unlock_irqrestore(&emu->emu_lock, flags);
 358 }
 359
 360 int snd_ca0106_spi_write(struct snd_ca0106 * emu,
 361                                    unsigned int data)
 362 {
 363         unsigned int reset, set;
 364         unsigned int reg, tmp;
 365         int n, result;
 366         reg = SPI;
 367         if (data > 0xffff) /* Only 16bit values allowed */
 368                 return 1;
 369         tmp = snd_ca0106_ptr_read(emu, reg, 0);
 370         reset = (tmp & ~0x3ffff) | 0x20000; /* Set xxx20000 */
 371         set = reset | 0x10000; /* Set xxx1xxxx */
 372         snd_ca0106_ptr_write(emu, reg, 0, reset | data);
 373         tmp = snd_ca0106_ptr_read(emu, reg, 0); /* write post */
 374         snd_ca0106_ptr_write(emu, reg, 0, set | data);
 375         result = 1;
 376         /* Wait for status bit to return to 0 */
 377         for (n = 0; n < 100; n++) {
 378                 udelay(10);
 379                 tmp = snd_ca0106_ptr_read(emu, reg, 0);
 380                 if (!(tmp & 0x10000)) {
 381                         result = 0;
 382                         break;
 383                 }
 384         }
 385         if (result) /* Timed out */
 386                 return 1;
 387         snd_ca0106_ptr_write(emu, reg, 0, reset | data);
 388         tmp = snd_ca0106_ptr_read(emu, reg, 0); /* Write post */
 389         return 0;
 390 }
 391
 392 /* The ADC does not support i2c read, so only write is implemented */
 393 int snd_ca0106_i2c_write(struct snd_ca0106 *emu,
 394                                 u32 reg,
 395                                 u32 value)
 396 {
 397         u32 tmp;
 398         int timeout = 0;
 399         int status;
 400         int retry;
 401         if ((reg > 0x7f) || (value > 0x1ff)) {
 402                 snd_printk(KERN_ERR "i2c_write: invalid values.\n");
 403                 return -EINVAL;
 404         }
 405
 406         tmp = reg << 25 | value << 16;
 407         // snd_printk("I2C-write:reg=0x%x, value=0x%x\n", reg, value);
 408         /* Not sure what this I2C channel controls. */
 409         /* snd_ca0106_ptr_write(emu, I2C_D0, 0, tmp); */
 410
 411         /* This controls the I2C connected to the WM8775 ADC Codec */
 412         snd_ca0106_ptr_write(emu, I2C_D1, 0, tmp);
 413
 414         for (retry = 0; retry < 10; retry++) {
 415                 /* Send the data to i2c */
 416                 //tmp = snd_ca0106_ptr_read(emu, I2C_A, 0);
 417                 //tmp = tmp & ~(I2C_A_ADC_READ|I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD_MASK);
 418                 tmp = 0;
 419                 tmp = tmp | (I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD);
 420                 snd_ca0106_ptr_write(emu, I2C_A, 0, tmp);
 421
 422                 /* Wait till the transaction ends */
 423                 while (1) {
 424                         status = snd_ca0106_ptr_read(emu, I2C_A, 0);
 425                         //snd_printk("I2C:status=0x%x\n", status);
 426                         timeout++;
 427                         if ((status & I2C_A_ADC_START) == 0)
 428                                 break;
 429
 430                         if (timeout > 1000)
 431                                 break;
 432                 }
 433                 //Read back and see if the transaction is successful
 434                 if ((status & I2C_A_ADC_ABORT) == 0)
 435                         break;
 436         }
 437
 438         if (retry == 10) {
 439                 snd_printk(KERN_ERR "Writing to ADC failed!\n");
 440                 return -EINVAL;
 441         }
 442
 443         return 0;
 444 }
 445
 446
 447 static void snd_ca0106_intr_enable(struct snd_ca0106 *emu, unsigned int intrenb)
 448 {
 449         unsigned long flags;
 450         unsigned int intr_enable;
 451
 452         spin_lock_irqsave(&emu->emu_lock, flags);
 453         intr_enable = inl(emu->port + INTE) | intrenb;
 454         outl(intr_enable, emu->port + INTE);
 455         spin_unlock_irqrestore(&emu->emu_lock, flags);
 456 }
 457
 458 static void snd_ca0106_intr_disable(struct snd_ca0106 *emu, unsigned int intrenb)
 459 {
 460         unsigned long flags;
 461         unsigned int intr_enable;
 462
 463         spin_lock_irqsave(&emu->emu_lock, flags);
 464         intr_enable = inl(emu->port + INTE) & ~intrenb;
 465         outl(intr_enable, emu->port + INTE);
 466         spin_unlock_irqrestore(&emu->emu_lock, flags);
 467 }
 468
 469
 470 static void snd_ca0106_pcm_free_substream(struct snd_pcm_runtime *runtime)
 471 {
 472         kfree(runtime->private_data);
 473 }
 474
 475 static const int spi_dacd_reg[] = {
 476         [PCM_FRONT_CHANNEL]     = SPI_DACD4_REG,
 477         [PCM_REAR_CHANNEL]      = SPI_DACD0_REG,
 478         [PCM_CENTER_LFE_CHANNEL]= SPI_DACD2_REG,
 479         [PCM_UNKNOWN_CHANNEL]   = SPI_DACD1_REG,
 480 };
 481 static const int spi_dacd_bit[] = {
 482         [PCM_FRONT_CHANNEL]     = SPI_DACD4_BIT,
 483         [PCM_REAR_CHANNEL]      = SPI_DACD0_BIT,
 484         [PCM_CENTER_LFE_CHANNEL]= SPI_DACD2_BIT,
 485         [PCM_UNKNOWN_CHANNEL]   = SPI_DACD1_BIT,
 486 };
 487
 488 static void restore_spdif_bits(struct snd_ca0106 *chip, int idx)
 489 {
 490         if (chip->spdif_str_bits[idx] != chip->spdif_bits[idx]) {
 491                 chip->spdif_str_bits[idx] = chip->spdif_bits[idx];
 492                 snd_ca0106_ptr_write(chip, SPCS0 + idx, 0,
 493                                      chip->spdif_str_bits[idx]);
 494         }
 495 }
 496
 497 /* open_playback callback */
 498 static int snd_ca0106_pcm_open_playback_channel(struct snd_pcm_substream *substream,
 499                                                 int channel_id)
 500 {
 501         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 502         struct snd_ca0106_channel *channel = &(chip->playback_channels[channel_id]);
 503         struct snd_ca0106_pcm *epcm;
 504         struct snd_pcm_runtime *runtime = substream->runtime;
 505         int err;
 506
 507         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 508
 509         if (epcm == NULL)
 510                 return -ENOMEM;
 511         epcm->emu = chip;
 512         epcm->substream = substream;
 513         epcm->channel_id=channel_id;
 514
 515         runtime->private_data = epcm;
 516         runtime->private_free = snd_ca0106_pcm_free_substream;
 517
 518         runtime->hw = snd_ca0106_playback_hw;
 519
 520         channel->emu = chip;
 521         channel->number = channel_id;
 522
 523         channel->use = 1;
 524         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
 525         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 526         channel->epcm = epcm;
 527         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 528                 return err;
 529         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 530                 return err;
 531         snd_pcm_set_sync(substream);
 532
 533         if (chip->details->spi_dac && channel_id != PCM_FRONT_CHANNEL) {
 534                 const int reg = spi_dacd_reg[channel_id];
 535
 536                 /* Power up dac */
 537                 chip->spi_dac_reg[reg] &= ~spi_dacd_bit[channel_id];
 538                 err = snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
 539                 if (err < 0)
 540                         return err;
 541         }
 542
 543         restore_spdif_bits(chip, channel_id);
 544
 545         return 0;
 546 }
 547
 548 /* close callback */
 549 static int snd_ca0106_pcm_close_playback(struct snd_pcm_substream *substream)
 550 {
 551         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 552         struct snd_pcm_runtime *runtime = substream->runtime;
 553         struct snd_ca0106_pcm *epcm = runtime->private_data;
 554         chip->playback_channels[epcm->channel_id].use = 0;
 555
 556         restore_spdif_bits(chip, epcm->channel_id);
 557
 558         if (chip->details->spi_dac && epcm->channel_id != PCM_FRONT_CHANNEL) {
 559                 const int reg = spi_dacd_reg[epcm->channel_id];
 560
 561                 /* Power down DAC */
 562                 chip->spi_dac_reg[reg] |= spi_dacd_bit[epcm->channel_id];
 563                 snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
 564         }
 565         /* FIXME: maybe zero others */
 566         return 0;
 567 }
 568
 569 static int snd_ca0106_pcm_open_playback_front(struct snd_pcm_substream *substream)
 570 {
 571         return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
 572 }
 573
 574 static int snd_ca0106_pcm_open_playback_center_lfe(struct snd_pcm_substream *substream)
 575 {
 576         return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
 577 }
 578
 579 static int snd_ca0106_pcm_open_playback_unknown(struct snd_pcm_substream *substream)
 580 {
 581         return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
 582 }
 583
 584 static int snd_ca0106_pcm_open_playback_rear(struct snd_pcm_substream *substream)
 585 {
 586         return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
 587 }
 588
 589 /* open_capture callback */
 590 static int snd_ca0106_pcm_open_capture_channel(struct snd_pcm_substream *substream,
 591                                                int channel_id)
 592 {
 593         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 594         struct snd_ca0106_channel *channel = &(chip->capture_channels[channel_id]);
 595         struct snd_ca0106_pcm *epcm;
 596         struct snd_pcm_runtime *runtime = substream->runtime;
 597         int err;
 598
 599         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 600         if (epcm == NULL) {
 601                 snd_printk(KERN_ERR "open_capture_channel: failed epcm alloc\n");
 602                 return -ENOMEM;
 603         }
 604         epcm->emu = chip;
 605         epcm->substream = substream;
 606         epcm->channel_id=channel_id;
 607
 608         runtime->private_data = epcm;
 609         runtime->private_free = snd_ca0106_pcm_free_substream;
 610
 611         runtime->hw = snd_ca0106_capture_hw;
 612
 613         channel->emu = chip;
 614         channel->number = channel_id;
 615
 616         channel->use = 1;
 617         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
 618         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 619         channel->epcm = epcm;
 620         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 621                 return err;
 622         //snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
 623         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 624                 return err;
 625         return 0;
 626 }
 627
 628 /* close callback */
 629 static int snd_ca0106_pcm_close_capture(struct snd_pcm_substream *substream)
 630 {
 631         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 632         struct snd_pcm_runtime *runtime = substream->runtime;
 633         struct snd_ca0106_pcm *epcm = runtime->private_data;
 634         chip->capture_channels[epcm->channel_id].use = 0;
 635         /* FIXME: maybe zero others */
 636         return 0;
 637 }
 638
 639 static int snd_ca0106_pcm_open_0_capture(struct snd_pcm_substream *substream)
 640 {
 641         return snd_ca0106_pcm_open_capture_channel(substream, 0);
 642 }
 643
 644 static int snd_ca0106_pcm_open_1_capture(struct snd_pcm_substream *substream)
 645 {
 646         return snd_ca0106_pcm_open_capture_channel(substream, 1);
 647 }
 648
 649 static int snd_ca0106_pcm_open_2_capture(struct snd_pcm_substream *substream)
 650 {
 651         return snd_ca0106_pcm_open_capture_channel(substream, 2);
 652 }
 653
 654 static int snd_ca0106_pcm_open_3_capture(struct snd_pcm_substream *substream)
 655 {
 656         return snd_ca0106_pcm_open_capture_channel(substream, 3);
 657 }
 658
 659 /* hw_params callback */
 660 static int snd_ca0106_pcm_hw_params_playback(struct snd_pcm_substream *substream,
 661                                       struct snd_pcm_hw_params *hw_params)
 662 {
 663         return snd_pcm_lib_malloc_pages(substream,
 664                                         params_buffer_bytes(hw_params));
 665 }
 666
 667 /* hw_free callback */
 668 static int snd_ca0106_pcm_hw_free_playback(struct snd_pcm_substream *substream)
 669 {
 670         return snd_pcm_lib_free_pages(substream);
 671 }
 672
 673 /* hw_params callback */
 674 static int snd_ca0106_pcm_hw_params_capture(struct snd_pcm_substream *substream,
 675                                       struct snd_pcm_hw_params *hw_params)
 676 {
 677         return snd_pcm_lib_malloc_pages(substream,
 678                                         params_buffer_bytes(hw_params));
 679 }
 680
 681 /* hw_free callback */
 682 static int snd_ca0106_pcm_hw_free_capture(struct snd_pcm_substream *substream)
 683 {
 684         return snd_pcm_lib_free_pages(substream);
 685 }
 686
 687 /* prepare playback callback */
 688 static int snd_ca0106_pcm_prepare_playback(struct snd_pcm_substream *substream)
 689 {
 690         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 691         struct snd_pcm_runtime *runtime = substream->runtime;
 692         struct snd_ca0106_pcm *epcm = runtime->private_data;
 693         int channel = epcm->channel_id;
 694         u32 *table_base = (u32 *)(emu->buffer.area+(8*16*channel));
 695         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
 696         u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
 697         u32 hcfg_set = 0x00000000;
 698         u32 hcfg;
 699         u32 reg40_mask = 0x30000 << (channel<<1);
 700         u32 reg40_set = 0;
 701         u32 reg40;
 702         /* FIXME: Depending on mixer selection of SPDIF out or not, select the spdif rate or the DAC rate. */
 703         u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
 704         u32 reg71_set = 0;
 705         u32 reg71;
 706         int i;
 707
 708         //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));
 709         //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
 710         //snd_printk("dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 711         /* Rate can be set per channel. */
 712         /* reg40 control host to fifo */
 713         /* reg71 controls DAC rate. */
 714         switch (runtime->rate) {
 715         case 44100:
 716                 reg40_set = 0x10000 << (channel<<1);
 717                 reg71_set = 0x01010000;
 718                 break;
 719         case 48000:
 720                 reg40_set = 0;
 721                 reg71_set = 0;
 722                 break;
 723         case 96000:
 724                 reg40_set = 0x20000 << (channel<<1);
 725                 reg71_set = 0x02020000;
 726                 break;
 727         case 192000:
 728                 reg40_set = 0x30000 << (channel<<1);
 729                 reg71_set = 0x03030000;
 730                 break;
 731         default:
 732                 reg40_set = 0;
 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_PLAYBACK_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         reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
 753         reg40 = (reg40 & ~reg40_mask) | reg40_set;
 754         snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
 755         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 756         reg71 = (reg71 & ~reg71_mask) | reg71_set;
 757         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 758
 759         /* FIXME: Check emu->buffer.size before actually writing to it. */
 760         for(i=0; i < runtime->periods; i++) {
 761                 table_base[i*2] = runtime->dma_addr + (i * period_size_bytes);
 762                 table_base[i*2+1] = period_size_bytes << 16;
 763         }
 764
 765         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
 766         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
 767         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
 768         snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
 769         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
 770         /* FIXME  test what 0 bytes does. */
 771         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
 772         snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
 773         snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
 774         snd_ca0106_ptr_write(emu, 0x08, channel, 0);
 775         snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
 776 #if 0
 777         snd_ca0106_ptr_write(emu, SPCS0, 0,
 778                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
 779                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
 780                                SPCS_GENERATIONSTATUS | 0x00001200 |
 781                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
 782 #endif
 783
 784         return 0;
 785 }
 786
 787 /* prepare capture callback */
 788 static int snd_ca0106_pcm_prepare_capture(struct snd_pcm_substream *substream)
 789 {
 790         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 791         struct snd_pcm_runtime *runtime = substream->runtime;
 792         struct snd_ca0106_pcm *epcm = runtime->private_data;
 793         int channel = epcm->channel_id;
 794         u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
 795         u32 hcfg_set = 0x00000000;
 796         u32 hcfg;
 797         u32 over_sampling=0x2;
 798         u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
 799         u32 reg71_set = 0;
 800         u32 reg71;
 801
 802         //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));
 803         //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
 804         //snd_printk("dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 805         /* reg71 controls ADC rate. */
 806         switch (runtime->rate) {
 807         case 44100:
 808                 reg71_set = 0x00004000;
 809                 break;
 810         case 48000:
 811                 reg71_set = 0;
 812                 break;
 813         case 96000:
 814                 reg71_set = 0x00008000;
 815                 over_sampling=0xa;
 816                 break;
 817         case 192000:
 818                 reg71_set = 0x0000c000;
 819                 over_sampling=0xa;
 820                 break;
 821         default:
 822                 reg71_set = 0;
 823                 break;
 824         }
 825         /* Format is a global setting */
 826         /* FIXME: Only let the first channel accessed set this. */
 827         switch (runtime->format) {
 828         case SNDRV_PCM_FORMAT_S16_LE:
 829                 hcfg_set = 0;
 830                 break;
 831         case SNDRV_PCM_FORMAT_S32_LE:
 832                 hcfg_set = HCFG_CAPTURE_S32_LE;
 833                 break;
 834         default:
 835                 hcfg_set = 0;
 836                 break;
 837         }
 838         hcfg = inl(emu->port + HCFG) ;
 839         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 840         outl(hcfg, emu->port + HCFG);
 841         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 842         reg71 = (reg71 & ~reg71_mask) | reg71_set;
 843         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 844         if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
 845                 snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
 846         }
 847
 848
 849         //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));
 850         snd_ca0106_ptr_write(emu, 0x13, channel, 0);
 851         snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
 852         snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
 853         snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
 854
 855         return 0;
 856 }
 857
 858 /* trigger_playback callback */
 859 static int snd_ca0106_pcm_trigger_playback(struct snd_pcm_substream *substream,
 860                                     int cmd)
 861 {
 862         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 863         struct snd_pcm_runtime *runtime;
 864         struct snd_ca0106_pcm *epcm;
 865         int channel;
 866         int result = 0;
 867         struct snd_pcm_substream *s;
 868         u32 basic = 0;
 869         u32 extended = 0;
 870         u32 bits;
 871         int running = 0;
 872
 873         switch (cmd) {
 874         case SNDRV_PCM_TRIGGER_START:
 875         case SNDRV_PCM_TRIGGER_RESUME:
 876                 running = 1;
 877                 break;
 878         case SNDRV_PCM_TRIGGER_STOP:
 879         case SNDRV_PCM_TRIGGER_SUSPEND:
 880         default:
 881                 running = 0;
 882                 break;
 883         }
 884         snd_pcm_group_for_each_entry(s, substream) {
 885                 if (snd_pcm_substream_chip(s) != emu ||
 886                     s->stream != SNDRV_PCM_STREAM_PLAYBACK)
 887                         continue;
 888                 runtime = s->runtime;
 889                 epcm = runtime->private_data;
 890                 channel = epcm->channel_id;
 891                 /* snd_printk("channel=%d\n",channel); */
 892                 epcm->running = running;
 893                 basic |= (0x1 << channel);
 894                 extended |= (0x10 << channel);
 895                 snd_pcm_trigger_done(s, substream);
 896         }
 897         /* snd_printk("basic=0x%x, extended=0x%x\n",basic, extended); */
 898
 899         switch (cmd) {
 900         case SNDRV_PCM_TRIGGER_START:
 901         case SNDRV_PCM_TRIGGER_RESUME:
 902                 bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
 903                 bits |= extended;
 904                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
 905                 bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
 906                 bits |= basic;
 907                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
 908                 break;
 909         case SNDRV_PCM_TRIGGER_STOP:
 910         case SNDRV_PCM_TRIGGER_SUSPEND:
 911                 bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
 912                 bits &= ~basic;
 913                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
 914                 bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
 915                 bits &= ~extended;
 916                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
 917                 break;
 918         default:
 919                 result = -EINVAL;
 920                 break;
 921         }
 922         return result;
 923 }
 924
 925 /* trigger_capture callback */
 926 static int snd_ca0106_pcm_trigger_capture(struct snd_pcm_substream *substream,
 927                                     int cmd)
 928 {
 929         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 930         struct snd_pcm_runtime *runtime = substream->runtime;
 931         struct snd_ca0106_pcm *epcm = runtime->private_data;
 932         int channel = epcm->channel_id;
 933         int result = 0;
 934
 935         switch (cmd) {
 936         case SNDRV_PCM_TRIGGER_START:
 937                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
 938                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
 939                 epcm->running = 1;
 940                 break;
 941         case SNDRV_PCM_TRIGGER_STOP:
 942                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
 943                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
 944                 epcm->running = 0;
 945                 break;
 946         default:
 947                 result = -EINVAL;
 948                 break;
 949         }
 950         return result;
 951 }
 952
 953 /* pointer_playback callback */
 954 static snd_pcm_uframes_t
 955 snd_ca0106_pcm_pointer_playback(struct snd_pcm_substream *substream)
 956 {
 957         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 958         struct snd_pcm_runtime *runtime = substream->runtime;
 959         struct snd_ca0106_pcm *epcm = runtime->private_data;
 960         snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
 961         int channel = epcm->channel_id;
 962
 963         if (!epcm->running)
 964                 return 0;
 965
 966         ptr3 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
 967         ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
 968         ptr4 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
 969         if (ptr3 != ptr4) ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
 970         ptr2 = bytes_to_frames(runtime, ptr1);
 971         ptr2+= (ptr4 >> 3) * runtime->period_size;
 972         ptr=ptr2;
 973         if (ptr >= runtime->buffer_size)
 974                 ptr -= runtime->buffer_size;
 975         //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);
 976
 977         return ptr;
 978 }
 979
 980 /* pointer_capture callback */
 981 static snd_pcm_uframes_t
 982 snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream *substream)
 983 {
 984         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 985         struct snd_pcm_runtime *runtime = substream->runtime;
 986         struct snd_ca0106_pcm *epcm = runtime->private_data;
 987         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
 988         int channel = channel=epcm->channel_id;
 989
 990         if (!epcm->running)
 991                 return 0;
 992
 993         ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
 994         ptr2 = bytes_to_frames(runtime, ptr1);
 995         ptr=ptr2;
 996         if (ptr >= runtime->buffer_size)
 997                 ptr -= runtime->buffer_size;
 998         //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);
 999
1000         return ptr;
1001 }
1002
1003 /* operators */
1004 static struct snd_pcm_ops snd_ca0106_playback_front_ops = {
1005         .open =        snd_ca0106_pcm_open_playback_front,
1006         .close =       snd_ca0106_pcm_close_playback,
1007         .ioctl =       snd_pcm_lib_ioctl,
1008         .hw_params =   snd_ca0106_pcm_hw_params_playback,
1009         .hw_free =     snd_ca0106_pcm_hw_free_playback,
1010         .prepare =     snd_ca0106_pcm_prepare_playback,
1011         .trigger =     snd_ca0106_pcm_trigger_playback,
1012         .pointer =     snd_ca0106_pcm_pointer_playback,
1013 };
1014
1015 static struct snd_pcm_ops snd_ca0106_capture_0_ops = {
1016         .open =        snd_ca0106_pcm_open_0_capture,
1017         .close =       snd_ca0106_pcm_close_capture,
1018         .ioctl =       snd_pcm_lib_ioctl,
1019         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1020         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1021         .prepare =     snd_ca0106_pcm_prepare_capture,
1022         .trigger =     snd_ca0106_pcm_trigger_capture,
1023         .pointer =     snd_ca0106_pcm_pointer_capture,
1024 };
1025
1026 static struct snd_pcm_ops snd_ca0106_capture_1_ops = {
1027         .open =        snd_ca0106_pcm_open_1_capture,
1028         .close =       snd_ca0106_pcm_close_capture,
1029         .ioctl =       snd_pcm_lib_ioctl,
1030         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1031         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1032         .prepare =     snd_ca0106_pcm_prepare_capture,
1033         .trigger =     snd_ca0106_pcm_trigger_capture,
1034         .pointer =     snd_ca0106_pcm_pointer_capture,
1035 };
1036
1037 static struct snd_pcm_ops snd_ca0106_capture_2_ops = {
1038         .open =        snd_ca0106_pcm_open_2_capture,
1039         .close =       snd_ca0106_pcm_close_capture,
1040         .ioctl =       snd_pcm_lib_ioctl,
1041         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1042         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1043         .prepare =     snd_ca0106_pcm_prepare_capture,
1044         .trigger =     snd_ca0106_pcm_trigger_capture,
1045         .pointer =     snd_ca0106_pcm_pointer_capture,
1046 };
1047
1048 static struct snd_pcm_ops snd_ca0106_capture_3_ops = {
1049         .open =        snd_ca0106_pcm_open_3_capture,
1050         .close =       snd_ca0106_pcm_close_capture,
1051         .ioctl =       snd_pcm_lib_ioctl,
1052         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1053         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1054         .prepare =     snd_ca0106_pcm_prepare_capture,
1055         .trigger =     snd_ca0106_pcm_trigger_capture,
1056         .pointer =     snd_ca0106_pcm_pointer_capture,
1057 };
1058
1059 static struct snd_pcm_ops snd_ca0106_playback_center_lfe_ops = {
1060         .open =         snd_ca0106_pcm_open_playback_center_lfe,
1061         .close =        snd_ca0106_pcm_close_playback,
1062         .ioctl =        snd_pcm_lib_ioctl,
1063         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1064         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1065         .prepare =      snd_ca0106_pcm_prepare_playback,
1066         .trigger =      snd_ca0106_pcm_trigger_playback,
1067         .pointer =      snd_ca0106_pcm_pointer_playback,
1068 };
1069
1070 static struct snd_pcm_ops snd_ca0106_playback_unknown_ops = {
1071         .open =         snd_ca0106_pcm_open_playback_unknown,
1072         .close =        snd_ca0106_pcm_close_playback,
1073         .ioctl =        snd_pcm_lib_ioctl,
1074         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1075         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1076         .prepare =      snd_ca0106_pcm_prepare_playback,
1077         .trigger =      snd_ca0106_pcm_trigger_playback,
1078         .pointer =      snd_ca0106_pcm_pointer_playback,
1079 };
1080
1081 static struct snd_pcm_ops snd_ca0106_playback_rear_ops = {
1082         .open =         snd_ca0106_pcm_open_playback_rear,
1083         .close =        snd_ca0106_pcm_close_playback,
1084         .ioctl =        snd_pcm_lib_ioctl,
1085         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1086                 .hw_free =      snd_ca0106_pcm_hw_free_playback,
1087         .prepare =      snd_ca0106_pcm_prepare_playback,
1088         .trigger =      snd_ca0106_pcm_trigger_playback,
1089         .pointer =      snd_ca0106_pcm_pointer_playback,
1090 };
1091
1092
1093 static unsigned short snd_ca0106_ac97_read(struct snd_ac97 *ac97,
1094                                              unsigned short reg)
1095 {
1096         struct snd_ca0106 *emu = ac97->private_data;
1097         unsigned long flags;
1098         unsigned short val;
1099
1100         spin_lock_irqsave(&emu->emu_lock, flags);
1101         outb(reg, emu->port + AC97ADDRESS);
1102         val = inw(emu->port + AC97DATA);
1103         spin_unlock_irqrestore(&emu->emu_lock, flags);
1104         return val;
1105 }
1106
1107 static void snd_ca0106_ac97_write(struct snd_ac97 *ac97,
1108                                     unsigned short reg, unsigned short val)
1109 {
1110         struct snd_ca0106 *emu = ac97->private_data;
1111         unsigned long flags;
1112
1113         spin_lock_irqsave(&emu->emu_lock, flags);
1114         outb(reg, emu->port + AC97ADDRESS);
1115         outw(val, emu->port + AC97DATA);
1116         spin_unlock_irqrestore(&emu->emu_lock, flags);
1117 }
1118
1119 static int snd_ca0106_ac97(struct snd_ca0106 *chip)
1120 {
1121         struct snd_ac97_bus *pbus;
1122         struct snd_ac97_template ac97;
1123         int err;
1124         static struct snd_ac97_bus_ops ops = {
1125                 .write = snd_ca0106_ac97_write,
1126                 .read = snd_ca0106_ac97_read,
1127         };
1128
1129         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
1130                 return err;
1131         pbus->no_vra = 1; /* we don't need VRA */
1132
1133         memset(&ac97, 0, sizeof(ac97));
1134         ac97.private_data = chip;
1135         ac97.scaps = AC97_SCAP_NO_SPDIF;
1136         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1137 }
1138
1139 static void ca0106_stop_chip(struct snd_ca0106 *chip);
1140
1141 static int snd_ca0106_free(struct snd_ca0106 *chip)
1142 {
1143         if (chip->res_port != NULL) {
1144                 /* avoid access to already used hardware */
1145                 ca0106_stop_chip(chip);
1146         }
1147         if (chip->irq >= 0)
1148                 free_irq(chip->irq, chip);
1149         // release the data
1150 #if 1
1151         if (chip->buffer.area)
1152                 snd_dma_free_pages(&chip->buffer);
1153 #endif
1154
1155         // release the i/o port
1156         release_and_free_resource(chip->res_port);
1157
1158         pci_disable_device(chip->pci);
1159         kfree(chip);
1160         return 0;
1161 }
1162
1163 static int snd_ca0106_dev_free(struct snd_device *device)
1164 {
1165         struct snd_ca0106 *chip = device->device_data;
1166         return snd_ca0106_free(chip);
1167 }
1168
1169 static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
1170 {
1171         unsigned int status;
1172
1173         struct snd_ca0106 *chip = dev_id;
1174         int i;
1175         int mask;
1176         unsigned int stat76;
1177         struct snd_ca0106_channel *pchannel;
1178
1179         status = inl(chip->port + IPR);
1180         if (! status)
1181                 return IRQ_NONE;
1182
1183         stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1184         //snd_printk("interrupt status = 0x%08x, stat76=0x%08x\n", status, stat76);
1185         //snd_printk("ptr=0x%08x\n",snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1186         mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1187         for(i = 0; i < 4; i++) {
1188                 pchannel = &(chip->playback_channels[i]);
1189                 if (stat76 & mask) {
1190 /* FIXME: Select the correct substream for period elapsed */
1191                         if(pchannel->use) {
1192                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1193                                 //printk(KERN_INFO "interrupt [%d] used\n", i);
1194                         }
1195                 }
1196                 //printk(KERN_INFO "channel=%p\n",pchannel);
1197                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1198                 mask <<= 1;
1199         }
1200         mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1201         for(i = 0; i < 4; i++) {
1202                 pchannel = &(chip->capture_channels[i]);
1203                 if (stat76 & mask) {
1204 /* FIXME: Select the correct substream for period elapsed */
1205                         if(pchannel->use) {
1206                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1207                                 //printk(KERN_INFO "interrupt [%d] used\n", i);
1208                         }
1209                 }
1210                 //printk(KERN_INFO "channel=%p\n",pchannel);
1211                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1212                 mask <<= 1;
1213         }
1214
1215         snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1216
1217         if (chip->midi.dev_id &&
1218             (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1219                 if (chip->midi.interrupt)
1220                         chip->midi.interrupt(&chip->midi, status);
1221                 else
1222                         chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1223         }
1224
1225         // acknowledge the interrupt if necessary
1226         outl(status, chip->port+IPR);
1227
1228         return IRQ_HANDLED;
1229 }
1230
1231 static int __devinit snd_ca0106_pcm(struct snd_ca0106 *emu, int device)
1232 {
1233         struct snd_pcm *pcm;
1234         struct snd_pcm_substream *substream;
1235         int err;
1236
1237         err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm);
1238         if (err < 0)
1239                 return err;
1240
1241         pcm->private_data = emu;
1242
1243         switch (device) {
1244         case 0:
1245           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1246           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1247           break;
1248         case 1:
1249           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1250           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1251           break;
1252         case 2:
1253           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1254           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1255           break;
1256         case 3:
1257           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1258           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1259           break;
1260         }
1261
1262         pcm->info_flags = 0;
1263         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1264         strcpy(pcm->name, "CA0106");
1265
1266         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
1267             substream;
1268             substream = substream->next) {
1269                 if ((err = snd_pcm_lib_preallocate_pages(substream,
1270                                                          SNDRV_DMA_TYPE_DEV,
1271                                                          snd_dma_pci_data(emu->pci),
1272                                                          64*1024, 64*1024)) < 0) /* FIXME: 32*1024 for sound buffer, between 32and64 for Periods table. */
1273                         return err;
1274         }
1275
1276         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
1277               substream;
1278               substream = substream->next) {
1279                 if ((err = snd_pcm_lib_preallocate_pages(substream,
1280                                                    SNDRV_DMA_TYPE_DEV,
1281                                                    snd_dma_pci_data(emu->pci),
1282                                                    64*1024, 64*1024)) < 0)
1283                         return err;
1284         }
1285
1286         emu->pcm[device] = pcm;
1287
1288         return 0;
1289 }
1290
1291 #define SPI_REG(reg, value)     (((reg) << SPI_REG_SHIFT) | (value))
1292 static unsigned int spi_dac_init[] = {
1293         SPI_REG(SPI_LDA1_REG,   SPI_DA_BIT_0dB), /* 0dB dig. attenuation */
1294         SPI_REG(SPI_RDA1_REG,   SPI_DA_BIT_0dB),
1295         SPI_REG(SPI_PL_REG,     SPI_PL_BIT_L_L | SPI_PL_BIT_R_R | SPI_IZD_BIT),
1296         SPI_REG(SPI_FMT_REG,    SPI_FMT_BIT_I2S | SPI_IWL_BIT_24),
1297         SPI_REG(SPI_LDA2_REG,   SPI_DA_BIT_0dB),
1298         SPI_REG(SPI_RDA2_REG,   SPI_DA_BIT_0dB),
1299         SPI_REG(SPI_LDA3_REG,   SPI_DA_BIT_0dB),
1300         SPI_REG(SPI_RDA3_REG,   SPI_DA_BIT_0dB),
1301         SPI_REG(SPI_MASTDA_REG, SPI_DA_BIT_0dB),
1302         SPI_REG(9,              0x00),
1303         SPI_REG(SPI_MS_REG,     SPI_DACD0_BIT | SPI_DACD1_BIT | SPI_DACD2_BIT),
1304         SPI_REG(12,             0x00),
1305         SPI_REG(SPI_LDA4_REG,   SPI_DA_BIT_0dB),
1306         SPI_REG(SPI_RDA4_REG,   SPI_DA_BIT_0dB | SPI_DA_BIT_UPDATE),
1307         SPI_REG(SPI_DACD4_REG,  0x00),
1308 };
1309
1310 static unsigned int i2c_adc_init[][2] = {
1311         { 0x17, 0x00 }, /* Reset */
1312         { 0x07, 0x00 }, /* Timeout */
1313         { 0x0b, 0x22 },  /* Interface control */
1314         { 0x0c, 0x22 },  /* Master mode control */
1315         { 0x0d, 0x08 },  /* Powerdown control */
1316         { 0x0e, 0xcf },  /* Attenuation Left  0x01 = -103dB, 0xff = 24dB */
1317         { 0x0f, 0xcf },  /* Attenuation Right 0.5dB steps */
1318         { 0x10, 0x7b },  /* ALC Control 1 */
1319         { 0x11, 0x00 },  /* ALC Control 2 */
1320         { 0x12, 0x32 },  /* ALC Control 3 */
1321         { 0x13, 0x00 },  /* Noise gate control */
1322         { 0x14, 0xa6 },  /* Limiter control */
1323         { 0x15, ADC_MUX_LINEIN },  /* ADC Mixer control */
1324 };
1325
1326 static void ca0106_init_chip(struct snd_ca0106 *chip, int resume)
1327 {
1328         int ch;
1329         unsigned int def_bits;
1330
1331         outl(0, chip->port + INTE);
1332
1333         /*
1334          *  Init to 0x02109204 :
1335          *  Clock accuracy    = 0     (1000ppm)
1336          *  Sample Rate       = 2     (48kHz)
1337          *  Audio Channel     = 1     (Left of 2)
1338          *  Source Number     = 0     (Unspecified)
1339          *  Generation Status = 1     (Original for Cat Code 12)
1340          *  Cat Code          = 12    (Digital Signal Mixer)
1341          *  Mode              = 0     (Mode 0)
1342          *  Emphasis          = 0     (None)
1343          *  CP                = 1     (Copyright unasserted)
1344          *  AN                = 0     (Audio data)
1345          *  P                 = 0     (Consumer)
1346          */
1347         def_bits =
1348                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1349                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1350                 SPCS_GENERATIONSTATUS | 0x00001200 |
1351                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT;
1352         if (!resume) {
1353                 chip->spdif_str_bits[0] = chip->spdif_bits[0] = def_bits;
1354                 chip->spdif_str_bits[1] = chip->spdif_bits[1] = def_bits;
1355                 chip->spdif_str_bits[2] = chip->spdif_bits[2] = def_bits;
1356                 chip->spdif_str_bits[3] = chip->spdif_bits[3] = def_bits;
1357         }
1358         /* Only SPCS1 has been tested */
1359         snd_ca0106_ptr_write(chip, SPCS1, 0, chip->spdif_str_bits[1]);
1360         snd_ca0106_ptr_write(chip, SPCS0, 0, chip->spdif_str_bits[0]);
1361         snd_ca0106_ptr_write(chip, SPCS2, 0, chip->spdif_str_bits[2]);
1362         snd_ca0106_ptr_write(chip, SPCS3, 0, chip->spdif_str_bits[3]);
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 /* FIXME: what are these? */
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         /* OSS drivers set this. */
1378         /* snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); */
1379
1380         /* Analog or Digital output */
1381         snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1382         /* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers.
1383          * Use 0x000f0000 for surround71
1384          */
1385         snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000);
1386
1387         chip->spdif_enable = 0; /* Set digital SPDIF output off */
1388         /*snd_ca0106_ptr_write(chip, 0x45, 0, 0);*/ /* Analogue out */
1389         /*snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00);*/ /* Digital out */
1390
1391         /* goes to 0x40c80000 when doing SPDIF IN/OUT */
1392         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000);
1393         /* (Mute) CAPTURE feedback into PLAYBACK volume.
1394          * Only lower 16 bits matter.
1395          */
1396         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff);
1397         /* SPDIF IN Volume */
1398         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000);
1399         /* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1400         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000);
1401
1402         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1403         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1404         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1405         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1406
1407         for (ch = 0; ch < 4; ch++) {
1408                 /* Only high 16 bits matter */
1409                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030);
1410                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1411 #if 0 /* Mute */
1412                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040);
1413                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040);
1414                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff);
1415                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff);
1416 #endif
1417         }
1418         if (chip->details->i2c_adc == 1) {
1419                 /* Select MIC, Line in, TAD in, AUX in */
1420                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1421                 /* Default to CAPTURE_SOURCE to i2s in */
1422                 if (!resume)
1423                         chip->capture_source = 3;
1424         } else if (chip->details->ac97 == 1) {
1425                 /* Default to AC97 in */
1426                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x444400e4);
1427                 /* Default to CAPTURE_SOURCE to AC97 in */
1428                 if (!resume)
1429                         chip->capture_source = 4;
1430         } else {
1431                 /* Select MIC, Line in, TAD in, AUX in */
1432                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1433                 /* Default to Set CAPTURE_SOURCE to i2s in */
1434                 if (!resume)
1435                         chip->capture_source = 3;
1436         }
1437
1438         if (chip->details->gpio_type == 2) {
1439                 /* The SB0438 use GPIO differently. */
1440                 /* FIXME: Still need to find out what the other GPIO bits do.
1441                  * E.g. For digital spdif out.
1442                  */
1443                 outl(0x0, chip->port+GPIO);
1444                 /* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1445                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1446         } else if (chip->details->gpio_type == 1) {
1447                 /* The SB0410 and SB0413 use GPIO differently. */
1448                 /* FIXME: Still need to find out what the other GPIO bits do.
1449                  * E.g. For digital spdif out.
1450                  */
1451                 outl(0x0, chip->port+GPIO);
1452                 /* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1453                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1454         } else {
1455                 outl(0x0, chip->port+GPIO);
1456                 outl(0x005f03a3, chip->port+GPIO); /* Analog */
1457                 /* outl(0x005f02a2, chip->port+GPIO); */ /* SPDIF */
1458         }
1459         snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1460
1461         /* outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG); */
1462         /* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1463         /* outl(0x00001409, chip->port+HCFG); */
1464         /* outl(0x00000009, chip->port+HCFG); */
1465         /* AC97 2.0, Enable outputs. */
1466         outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG);
1467
1468         if (chip->details->i2c_adc == 1) {
1469                 /* The SB0410 and SB0413 use I2C to control ADC. */
1470                 int size, n;
1471
1472                 size = ARRAY_SIZE(i2c_adc_init);
1473                 /* snd_printk("I2C:array size=0x%x\n", size); */
1474                 for (n = 0; n < size; n++)
1475                         snd_ca0106_i2c_write(chip, i2c_adc_init[n][0],
1476                                              i2c_adc_init[n][1]);
1477                 for (n = 0; n < 4; n++) {
1478                         chip->i2c_capture_volume[n][0] = 0xcf;
1479                         chip->i2c_capture_volume[n][1] = 0xcf;
1480                 }
1481                 chip->i2c_capture_source = 2; /* Line in */
1482                 /* Enable Line-in capture. MIC in currently untested. */
1483                 /* snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); */
1484         }
1485
1486         if (chip->details->spi_dac == 1) {
1487                 /* The SB0570 use SPI to control DAC. */
1488                 int size, n;
1489
1490                 size = ARRAY_SIZE(spi_dac_init);
1491                 for (n = 0; n < size; n++) {
1492                         int reg = spi_dac_init[n] >> SPI_REG_SHIFT;
1493
1494                         snd_ca0106_spi_write(chip, spi_dac_init[n]);
1495                         if (reg < ARRAY_SIZE(chip->spi_dac_reg))
1496                                 chip->spi_dac_reg[reg] = spi_dac_init[n];
1497                 }
1498         }
1499 }
1500
1501 static void ca0106_stop_chip(struct snd_ca0106 *chip)
1502 {
1503         /* disable interrupts */
1504         snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
1505         outl(0, chip->port + INTE);
1506         snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
1507         udelay(1000);
1508         /* disable audio */
1509         /* outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG); */
1510         outl(0, chip->port + HCFG);
1511         /* FIXME: We need to stop and DMA transfers here.
1512          *        But as I am not sure how yet, we cannot from the dma pages.
1513          * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
1514          */
1515 }
1516
1517 static int __devinit snd_ca0106_create(int dev, struct snd_card *card,
1518                                          struct pci_dev *pci,
1519                                          struct snd_ca0106 **rchip)
1520 {
1521         struct snd_ca0106 *chip;
1522         struct snd_ca0106_details *c;
1523         int err;
1524         static struct snd_device_ops ops = {
1525                 .dev_free = snd_ca0106_dev_free,
1526         };
1527
1528         *rchip = NULL;
1529
1530         err = pci_enable_device(pci);
1531         if (err < 0)
1532                 return err;
1533         if (pci_set_dma_mask(pci, DMA_32BIT_MASK) < 0 ||
1534             pci_set_consistent_dma_mask(pci, DMA_32BIT_MASK) < 0) {
1535                 printk(KERN_ERR "error to set 32bit mask DMA\n");
1536                 pci_disable_device(pci);
1537                 return -ENXIO;
1538         }
1539
1540         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1541         if (chip == NULL) {
1542                 pci_disable_device(pci);
1543                 return -ENOMEM;
1544         }
1545
1546         chip->card = card;
1547         chip->pci = pci;
1548         chip->irq = -1;
1549
1550         spin_lock_init(&chip->emu_lock);
1551
1552         chip->port = pci_resource_start(pci, 0);
1553         chip->res_port = request_region(chip->port, 0x20, "snd_ca0106");
1554         if (!chip->res_port) {
1555                 snd_ca0106_free(chip);
1556                 printk(KERN_ERR "cannot allocate the port\n");
1557                 return -EBUSY;
1558         }
1559
1560         if (request_irq(pci->irq, snd_ca0106_interrupt,
1561                         IRQF_SHARED, "snd_ca0106", chip)) {
1562                 snd_ca0106_free(chip);
1563                 printk(KERN_ERR "cannot grab irq\n");
1564                 return -EBUSY;
1565         }
1566         chip->irq = pci->irq;
1567
1568         /* This stores the periods table. */
1569         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1570                                 1024, &chip->buffer) < 0) {
1571                 snd_ca0106_free(chip);
1572                 return -ENOMEM;
1573         }
1574
1575         pci_set_master(pci);
1576         /* read serial */
1577         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1578         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1579         printk(KERN_INFO "snd-ca0106: Model %04x Rev %08x Serial %08x\n",
1580                chip->model, pci->revision, chip->serial);
1581         strcpy(card->driver, "CA0106");
1582         strcpy(card->shortname, "CA0106");
1583
1584         for (c = ca0106_chip_details; c->serial; c++) {
1585                 if (subsystem[dev]) {
1586                         if (c->serial == subsystem[dev])
1587                                 break;
1588                 } else if (c->serial == chip->serial)
1589                         break;
1590         }
1591         chip->details = c;
1592         if (subsystem[dev]) {
1593                 printk(KERN_INFO "snd-ca0106: Sound card name=%s, "
1594                        "subsystem=0x%x. Forced to subsystem=0x%x\n",
1595                        c->name, chip->serial, subsystem[dev]);
1596         }
1597
1598         sprintf(card->longname, "%s at 0x%lx irq %i",
1599                 c->name, chip->port, chip->irq);
1600
1601         ca0106_init_chip(chip, 0);
1602
1603         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1604         if (err < 0) {
1605                 snd_ca0106_free(chip);
1606                 return err;
1607         }
1608         *rchip = chip;
1609         return 0;
1610 }
1611
1612
1613 static void ca0106_midi_interrupt_enable(struct snd_ca_midi *midi, int intr)
1614 {
1615         snd_ca0106_intr_enable((struct snd_ca0106 *)(midi->dev_id), intr);
1616 }
1617
1618 static void ca0106_midi_interrupt_disable(struct snd_ca_midi *midi, int intr)
1619 {
1620         snd_ca0106_intr_disable((struct snd_ca0106 *)(midi->dev_id), intr);
1621 }
1622
1623 static unsigned char ca0106_midi_read(struct snd_ca_midi *midi, int idx)
1624 {
1625         return (unsigned char)snd_ca0106_ptr_read((struct snd_ca0106 *)(midi->dev_id),
1626                                                   midi->port + idx, 0);
1627 }
1628
1629 static void ca0106_midi_write(struct snd_ca_midi *midi, int data, int idx)
1630 {
1631         snd_ca0106_ptr_write((struct snd_ca0106 *)(midi->dev_id), midi->port + idx, 0, data);
1632 }
1633
1634 static struct snd_card *ca0106_dev_id_card(void *dev_id)
1635 {
1636         return ((struct snd_ca0106 *)dev_id)->card;
1637 }
1638
1639 static int ca0106_dev_id_port(void *dev_id)
1640 {
1641         return ((struct snd_ca0106 *)dev_id)->port;
1642 }
1643
1644 static int __devinit snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
1645 {
1646         struct snd_ca_midi *midi;
1647         char *name;
1648         int err;
1649
1650         if (channel == CA0106_MIDI_CHAN_B) {
1651                 name = "CA0106 MPU-401 (UART) B";
1652                 midi =  &chip->midi2;
1653                 midi->tx_enable = INTE_MIDI_TX_B;
1654                 midi->rx_enable = INTE_MIDI_RX_B;
1655                 midi->ipr_tx = IPR_MIDI_TX_B;
1656                 midi->ipr_rx = IPR_MIDI_RX_B;
1657                 midi->port = MIDI_UART_B_DATA;
1658         } else {
1659                 name = "CA0106 MPU-401 (UART)";
1660                 midi =  &chip->midi;
1661                 midi->tx_enable = INTE_MIDI_TX_A;
1662                 midi->rx_enable = INTE_MIDI_TX_B;
1663                 midi->ipr_tx = IPR_MIDI_TX_A;
1664                 midi->ipr_rx = IPR_MIDI_RX_A;
1665                 midi->port = MIDI_UART_A_DATA;
1666         }
1667
1668         midi->reset = CA0106_MPU401_RESET;
1669         midi->enter_uart = CA0106_MPU401_ENTER_UART;
1670         midi->ack = CA0106_MPU401_ACK;
1671
1672         midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1673         midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1674
1675         midi->channel = channel;
1676
1677         midi->interrupt_enable = ca0106_midi_interrupt_enable;
1678         midi->interrupt_disable = ca0106_midi_interrupt_disable;
1679
1680         midi->read = ca0106_midi_read;
1681         midi->write = ca0106_midi_write;
1682
1683         midi->get_dev_id_card = ca0106_dev_id_card;
1684         midi->get_dev_id_port = ca0106_dev_id_port;
1685
1686         midi->dev_id = chip;
1687
1688         if ((err = ca_midi_init(chip, midi, 0, name)) < 0)
1689                 return err;
1690
1691         return 0;
1692 }
1693
1694
1695 static int __devinit snd_ca0106_probe(struct pci_dev *pci,
1696                                         const struct pci_device_id *pci_id)
1697 {
1698         static int dev;
1699         struct snd_card *card;
1700         struct snd_ca0106 *chip;
1701         int i, err;
1702
1703         if (dev >= SNDRV_CARDS)
1704                 return -ENODEV;
1705         if (!enable[dev]) {
1706                 dev++;
1707                 return -ENOENT;
1708         }
1709
1710         err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
1711         if (err < 0)
1712                 return err;
1713
1714         err = snd_ca0106_create(dev, card, pci, &chip);
1715         if (err < 0)
1716                 goto error;
1717         card->private_data = chip;
1718
1719         for (i = 0; i < 4; i++) {
1720                 err = snd_ca0106_pcm(chip, i);
1721                 if (err < 0)
1722                         goto error;
1723         }
1724
1725         if (chip->details->ac97 == 1) {
1726                 /* The SB0410 and SB0413 do not have an AC97 chip. */
1727                 err = snd_ca0106_ac97(chip);
1728                 if (err < 0)
1729                         goto error;
1730         }
1731         err = snd_ca0106_mixer(chip);
1732         if (err < 0)
1733                 goto error;
1734
1735         snd_printdd("ca0106: probe for MIDI channel A ...");
1736         err = snd_ca0106_midi(chip, CA0106_MIDI_CHAN_A);
1737         if (err < 0)
1738                 goto error;
1739         snd_printdd(" done.\n");
1740
1741 #ifdef CONFIG_PROC_FS
1742         snd_ca0106_proc_init(chip);
1743 #endif
1744
1745         snd_card_set_dev(card, &pci->dev);
1746
1747         err = snd_card_register(card);
1748         if (err < 0)
1749                 goto error;
1750
1751         pci_set_drvdata(pci, card);
1752         dev++;
1753         return 0;
1754
1755  error:
1756         snd_card_free(card);
1757         return err;
1758 }
1759
1760 static void __devexit snd_ca0106_remove(struct pci_dev *pci)
1761 {
1762         snd_card_free(pci_get_drvdata(pci));
1763         pci_set_drvdata(pci, NULL);
1764 }
1765
1766 #ifdef CONFIG_PM
1767 static int snd_ca0106_suspend(struct pci_dev *pci, pm_message_t state)
1768 {
1769         struct snd_card *card = pci_get_drvdata(pci);
1770         struct snd_ca0106 *chip = card->private_data;
1771         int i;
1772
1773         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1774         for (i = 0; i < 4; i++)
1775                 snd_pcm_suspend_all(chip->pcm[i]);
1776         if (chip->details->ac97)
1777                 snd_ac97_suspend(chip->ac97);
1778         snd_ca0106_mixer_suspend(chip);
1779
1780         ca0106_stop_chip(chip);
1781
1782         pci_disable_device(pci);
1783         pci_save_state(pci);
1784         pci_set_power_state(pci, pci_choose_state(pci, state));
1785         return 0;
1786 }
1787
1788 static int snd_ca0106_resume(struct pci_dev *pci)
1789 {
1790         struct snd_card *card = pci_get_drvdata(pci);
1791         struct snd_ca0106 *chip = card->private_data;
1792         int i;
1793
1794         pci_set_power_state(pci, PCI_D0);
1795         pci_restore_state(pci);
1796
1797         if (pci_enable_device(pci) < 0) {
1798                 snd_card_disconnect(card);
1799                 return -EIO;
1800         }
1801
1802         pci_set_master(pci);
1803
1804         ca0106_init_chip(chip, 1);
1805
1806         if (chip->details->ac97)
1807                 snd_ac97_resume(chip->ac97);
1808         snd_ca0106_mixer_resume(chip);
1809         if (chip->details->spi_dac) {
1810                 for (i = 0; i < ARRAY_SIZE(chip->spi_dac_reg); i++)
1811                         snd_ca0106_spi_write(chip, chip->spi_dac_reg[i]);
1812         }
1813
1814         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1815         return 0;
1816 }
1817 #endif
1818
1819 // PCI IDs
1820 static struct pci_device_id snd_ca0106_ids[] = {
1821         { 0x1102, 0x0007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },    /* Audigy LS or Live 24bit */
1822         { 0, }
1823 };
1824 MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1825
1826 // pci_driver definition
1827 static struct pci_driver driver = {
1828         .name = "CA0106",
1829         .id_table = snd_ca0106_ids,
1830         .probe = snd_ca0106_probe,
1831         .remove = __devexit_p(snd_ca0106_remove),
1832 #ifdef CONFIG_PM
1833         .suspend = snd_ca0106_suspend,
1834         .resume = snd_ca0106_resume,
1835 #endif
1836 };
1837
1838 // initialization of the module
1839 static int __init alsa_card_ca0106_init(void)
1840 {
1841         return pci_register_driver(&driver);
1842 }
1843
1844 // clean up the module
1845 static void __exit alsa_card_ca0106_exit(void)
1846 {
1847         pci_unregister_driver(&driver);
1848 }
1849
1850 module_init(alsa_card_ca0106_init)
1851 module_exit(alsa_card_ca0106_exit)