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         /* Giga-byte GA-G1975X mobo
 259          * Novell bnc#395807
 260          */
 261         /* FIXME: the GPIO and I2C setting aren't tested well */
 262         { .serial = 0x1458a006,
 263           .name = "Giga-byte GA-G1975X",
 264           .gpio_type = 1,
 265           .i2c_adc = 1 },
 266          /* Shuttle XPC SD31P which has an onboard Creative Labs
 267           * Sound Blaster Live! 24-bit EAX
 268           * high-definition 7.1 audio processor".
 269           * Added using info from andrewvegan in alsa bug #1298
 270           */
 271          { .serial = 0x30381297,
 272            .name   = "Shuttle XPC SD31P [SD31P]",
 273            .gpio_type = 1,
 274            .i2c_adc = 1 } ,
 275         /* Shuttle XPC SD11G5 which has an onboard Creative Labs
 276          * Sound Blaster Live! 24-bit EAX
 277          * high-definition 7.1 audio processor".
 278          * Fixes ALSA bug#1600
 279          */
 280         { .serial = 0x30411297,
 281           .name = "Shuttle XPC SD11G5 [SD11G5]",
 282           .gpio_type = 1,
 283           .i2c_adc = 1 } ,
 284          { .serial = 0,
 285            .name   = "AudigyLS [Unknown]" }
 286 };
 287
 288 /* hardware definition */
 289 static struct snd_pcm_hardware snd_ca0106_playback_hw = {
 290         .info =                 SNDRV_PCM_INFO_MMAP |
 291                                 SNDRV_PCM_INFO_INTERLEAVED |
 292                                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 293                                 SNDRV_PCM_INFO_MMAP_VALID |
 294                                 SNDRV_PCM_INFO_SYNC_START,
 295         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
 296         .rates =                (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |
 297                                  SNDRV_PCM_RATE_192000),
 298         .rate_min =             48000,
 299         .rate_max =             192000,
 300         .channels_min =         2,  //1,
 301         .channels_max =         2,  //6,
 302         .buffer_bytes_max =     ((65536 - 64) * 8),
 303         .period_bytes_min =     64,
 304         .period_bytes_max =     (65536 - 64),
 305         .periods_min =          2,
 306         .periods_max =          8,
 307         .fifo_size =            0,
 308 };
 309
 310 static struct snd_pcm_hardware snd_ca0106_capture_hw = {
 311         .info =                 (SNDRV_PCM_INFO_MMAP |
 312                                  SNDRV_PCM_INFO_INTERLEAVED |
 313                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 314                                  SNDRV_PCM_INFO_MMAP_VALID),
 315         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
 316 #if 0 /* FIXME: looks like 44.1kHz capture causes noisy output on 48kHz */
 317         .rates =                (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
 318                                  SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
 319         .rate_min =             44100,
 320 #else
 321         .rates =                (SNDRV_PCM_RATE_48000 |
 322                                  SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
 323         .rate_min =             48000,
 324 #endif /* FIXME */
 325         .rate_max =             192000,
 326         .channels_min =         2,
 327         .channels_max =         2,
 328         .buffer_bytes_max =     ((65536 - 64) * 8),
 329         .period_bytes_min =     64,
 330         .period_bytes_max =     (65536 - 64),
 331         .periods_min =          2,
 332         .periods_max =          2,
 333         .fifo_size =            0,
 334 };
 335
 336 unsigned int snd_ca0106_ptr_read(struct snd_ca0106 * emu,
 337                                           unsigned int reg,
 338                                           unsigned int chn)
 339 {
 340         unsigned long flags;
 341         unsigned int regptr, val;
 342
 343         regptr = (reg << 16) | chn;
 344
 345         spin_lock_irqsave(&emu->emu_lock, flags);
 346         outl(regptr, emu->port + PTR);
 347         val = inl(emu->port + DATA);
 348         spin_unlock_irqrestore(&emu->emu_lock, flags);
 349         return val;
 350 }
 351
 352 void snd_ca0106_ptr_write(struct snd_ca0106 *emu,
 353                                    unsigned int reg,
 354                                    unsigned int chn,
 355                                    unsigned int data)
 356 {
 357         unsigned int regptr;
 358         unsigned long flags;
 359
 360         regptr = (reg << 16) | chn;
 361
 362         spin_lock_irqsave(&emu->emu_lock, flags);
 363         outl(regptr, emu->port + PTR);
 364         outl(data, emu->port + DATA);
 365         spin_unlock_irqrestore(&emu->emu_lock, flags);
 366 }
 367
 368 int snd_ca0106_spi_write(struct snd_ca0106 * emu,
 369                                    unsigned int data)
 370 {
 371         unsigned int reset, set;
 372         unsigned int reg, tmp;
 373         int n, result;
 374         reg = SPI;
 375         if (data > 0xffff) /* Only 16bit values allowed */
 376                 return 1;
 377         tmp = snd_ca0106_ptr_read(emu, reg, 0);
 378         reset = (tmp & ~0x3ffff) | 0x20000; /* Set xxx20000 */
 379         set = reset | 0x10000; /* Set xxx1xxxx */
 380         snd_ca0106_ptr_write(emu, reg, 0, reset | data);
 381         tmp = snd_ca0106_ptr_read(emu, reg, 0); /* write post */
 382         snd_ca0106_ptr_write(emu, reg, 0, set | data);
 383         result = 1;
 384         /* Wait for status bit to return to 0 */
 385         for (n = 0; n < 100; n++) {
 386                 udelay(10);
 387                 tmp = snd_ca0106_ptr_read(emu, reg, 0);
 388                 if (!(tmp & 0x10000)) {
 389                         result = 0;
 390                         break;
 391                 }
 392         }
 393         if (result) /* Timed out */
 394                 return 1;
 395         snd_ca0106_ptr_write(emu, reg, 0, reset | data);
 396         tmp = snd_ca0106_ptr_read(emu, reg, 0); /* Write post */
 397         return 0;
 398 }
 399
 400 /* The ADC does not support i2c read, so only write is implemented */
 401 int snd_ca0106_i2c_write(struct snd_ca0106 *emu,
 402                                 u32 reg,
 403                                 u32 value)
 404 {
 405         u32 tmp;
 406         int timeout = 0;
 407         int status;
 408         int retry;
 409         if ((reg > 0x7f) || (value > 0x1ff)) {
 410                 snd_printk(KERN_ERR "i2c_write: invalid values.\n");
 411                 return -EINVAL;
 412         }
 413
 414         tmp = reg << 25 | value << 16;
 415         /*
 416         snd_printk(KERN_DEBUG "I2C-write:reg=0x%x, value=0x%x\n", reg, value);
 417         */
 418         /* Not sure what this I2C channel controls. */
 419         /* snd_ca0106_ptr_write(emu, I2C_D0, 0, tmp); */
 420
 421         /* This controls the I2C connected to the WM8775 ADC Codec */
 422         snd_ca0106_ptr_write(emu, I2C_D1, 0, tmp);
 423
 424         for (retry = 0; retry < 10; retry++) {
 425                 /* Send the data to i2c */
 426                 //tmp = snd_ca0106_ptr_read(emu, I2C_A, 0);
 427                 //tmp = tmp & ~(I2C_A_ADC_READ|I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD_MASK);
 428                 tmp = 0;
 429                 tmp = tmp | (I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD);
 430                 snd_ca0106_ptr_write(emu, I2C_A, 0, tmp);
 431
 432                 /* Wait till the transaction ends */
 433                 while (1) {
 434                         status = snd_ca0106_ptr_read(emu, I2C_A, 0);
 435                         /*snd_printk(KERN_DEBUG "I2C:status=0x%x\n", status);*/
 436                         timeout++;
 437                         if ((status & I2C_A_ADC_START) == 0)
 438                                 break;
 439
 440                         if (timeout > 1000)
 441                                 break;
 442                 }
 443                 //Read back and see if the transaction is successful
 444                 if ((status & I2C_A_ADC_ABORT) == 0)
 445                         break;
 446         }
 447
 448         if (retry == 10) {
 449                 snd_printk(KERN_ERR "Writing to ADC failed!\n");
 450                 return -EINVAL;
 451         }
 452
 453         return 0;
 454 }
 455
 456
 457 static void snd_ca0106_intr_enable(struct snd_ca0106 *emu, unsigned int intrenb)
 458 {
 459         unsigned long flags;
 460         unsigned int intr_enable;
 461
 462         spin_lock_irqsave(&emu->emu_lock, flags);
 463         intr_enable = inl(emu->port + INTE) | intrenb;
 464         outl(intr_enable, emu->port + INTE);
 465         spin_unlock_irqrestore(&emu->emu_lock, flags);
 466 }
 467
 468 static void snd_ca0106_intr_disable(struct snd_ca0106 *emu, unsigned int intrenb)
 469 {
 470         unsigned long flags;
 471         unsigned int intr_enable;
 472
 473         spin_lock_irqsave(&emu->emu_lock, flags);
 474         intr_enable = inl(emu->port + INTE) & ~intrenb;
 475         outl(intr_enable, emu->port + INTE);
 476         spin_unlock_irqrestore(&emu->emu_lock, flags);
 477 }
 478
 479
 480 static void snd_ca0106_pcm_free_substream(struct snd_pcm_runtime *runtime)
 481 {
 482         kfree(runtime->private_data);
 483 }
 484
 485 static const int spi_dacd_reg[] = {
 486         [PCM_FRONT_CHANNEL]     = SPI_DACD4_REG,
 487         [PCM_REAR_CHANNEL]      = SPI_DACD0_REG,
 488         [PCM_CENTER_LFE_CHANNEL]= SPI_DACD2_REG,
 489         [PCM_UNKNOWN_CHANNEL]   = SPI_DACD1_REG,
 490 };
 491 static const int spi_dacd_bit[] = {
 492         [PCM_FRONT_CHANNEL]     = SPI_DACD4_BIT,
 493         [PCM_REAR_CHANNEL]      = SPI_DACD0_BIT,
 494         [PCM_CENTER_LFE_CHANNEL]= SPI_DACD2_BIT,
 495         [PCM_UNKNOWN_CHANNEL]   = SPI_DACD1_BIT,
 496 };
 497
 498 static void restore_spdif_bits(struct snd_ca0106 *chip, int idx)
 499 {
 500         if (chip->spdif_str_bits[idx] != chip->spdif_bits[idx]) {
 501                 chip->spdif_str_bits[idx] = chip->spdif_bits[idx];
 502                 snd_ca0106_ptr_write(chip, SPCS0 + idx, 0,
 503                                      chip->spdif_str_bits[idx]);
 504         }
 505 }
 506
 507 /* open_playback callback */
 508 static int snd_ca0106_pcm_open_playback_channel(struct snd_pcm_substream *substream,
 509                                                 int channel_id)
 510 {
 511         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 512         struct snd_ca0106_channel *channel = &(chip->playback_channels[channel_id]);
 513         struct snd_ca0106_pcm *epcm;
 514         struct snd_pcm_runtime *runtime = substream->runtime;
 515         int err;
 516
 517         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 518
 519         if (epcm == NULL)
 520                 return -ENOMEM;
 521         epcm->emu = chip;
 522         epcm->substream = substream;
 523         epcm->channel_id=channel_id;
 524
 525         runtime->private_data = epcm;
 526         runtime->private_free = snd_ca0106_pcm_free_substream;
 527
 528         runtime->hw = snd_ca0106_playback_hw;
 529
 530         channel->emu = chip;
 531         channel->number = channel_id;
 532
 533         channel->use = 1;
 534         /*
 535         printk(KERN_DEBUG "open:channel_id=%d, chip=%p, channel=%p\n",
 536                channel_id, chip, channel);
 537         */
 538         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 539         channel->epcm = epcm;
 540         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 541                 return err;
 542         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 543                 return err;
 544         snd_pcm_set_sync(substream);
 545
 546         if (chip->details->spi_dac && channel_id != PCM_FRONT_CHANNEL) {
 547                 const int reg = spi_dacd_reg[channel_id];
 548
 549                 /* Power up dac */
 550                 chip->spi_dac_reg[reg] &= ~spi_dacd_bit[channel_id];
 551                 err = snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
 552                 if (err < 0)
 553                         return err;
 554         }
 555
 556         restore_spdif_bits(chip, channel_id);
 557
 558         return 0;
 559 }
 560
 561 /* close callback */
 562 static int snd_ca0106_pcm_close_playback(struct snd_pcm_substream *substream)
 563 {
 564         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 565         struct snd_pcm_runtime *runtime = substream->runtime;
 566         struct snd_ca0106_pcm *epcm = runtime->private_data;
 567         chip->playback_channels[epcm->channel_id].use = 0;
 568
 569         restore_spdif_bits(chip, epcm->channel_id);
 570
 571         if (chip->details->spi_dac && epcm->channel_id != PCM_FRONT_CHANNEL) {
 572                 const int reg = spi_dacd_reg[epcm->channel_id];
 573
 574                 /* Power down DAC */
 575                 chip->spi_dac_reg[reg] |= spi_dacd_bit[epcm->channel_id];
 576                 snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
 577         }
 578         /* FIXME: maybe zero others */
 579         return 0;
 580 }
 581
 582 static int snd_ca0106_pcm_open_playback_front(struct snd_pcm_substream *substream)
 583 {
 584         return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
 585 }
 586
 587 static int snd_ca0106_pcm_open_playback_center_lfe(struct snd_pcm_substream *substream)
 588 {
 589         return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
 590 }
 591
 592 static int snd_ca0106_pcm_open_playback_unknown(struct snd_pcm_substream *substream)
 593 {
 594         return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
 595 }
 596
 597 static int snd_ca0106_pcm_open_playback_rear(struct snd_pcm_substream *substream)
 598 {
 599         return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
 600 }
 601
 602 /* open_capture callback */
 603 static int snd_ca0106_pcm_open_capture_channel(struct snd_pcm_substream *substream,
 604                                                int channel_id)
 605 {
 606         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 607         struct snd_ca0106_channel *channel = &(chip->capture_channels[channel_id]);
 608         struct snd_ca0106_pcm *epcm;
 609         struct snd_pcm_runtime *runtime = substream->runtime;
 610         int err;
 611
 612         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 613         if (epcm == NULL) {
 614                 snd_printk(KERN_ERR "open_capture_channel: failed epcm alloc\n");
 615                 return -ENOMEM;
 616         }
 617         epcm->emu = chip;
 618         epcm->substream = substream;
 619         epcm->channel_id=channel_id;
 620
 621         runtime->private_data = epcm;
 622         runtime->private_free = snd_ca0106_pcm_free_substream;
 623
 624         runtime->hw = snd_ca0106_capture_hw;
 625
 626         channel->emu = chip;
 627         channel->number = channel_id;
 628
 629         channel->use = 1;
 630         /*
 631         printk(KERN_DEBUG "open:channel_id=%d, chip=%p, channel=%p\n",
 632                channel_id, chip, channel);
 633         */
 634         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 635         channel->epcm = epcm;
 636         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 637                 return err;
 638         //snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
 639         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 640                 return err;
 641         return 0;
 642 }
 643
 644 /* close callback */
 645 static int snd_ca0106_pcm_close_capture(struct snd_pcm_substream *substream)
 646 {
 647         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 648         struct snd_pcm_runtime *runtime = substream->runtime;
 649         struct snd_ca0106_pcm *epcm = runtime->private_data;
 650         chip->capture_channels[epcm->channel_id].use = 0;
 651         /* FIXME: maybe zero others */
 652         return 0;
 653 }
 654
 655 static int snd_ca0106_pcm_open_0_capture(struct snd_pcm_substream *substream)
 656 {
 657         return snd_ca0106_pcm_open_capture_channel(substream, 0);
 658 }
 659
 660 static int snd_ca0106_pcm_open_1_capture(struct snd_pcm_substream *substream)
 661 {
 662         return snd_ca0106_pcm_open_capture_channel(substream, 1);
 663 }
 664
 665 static int snd_ca0106_pcm_open_2_capture(struct snd_pcm_substream *substream)
 666 {
 667         return snd_ca0106_pcm_open_capture_channel(substream, 2);
 668 }
 669
 670 static int snd_ca0106_pcm_open_3_capture(struct snd_pcm_substream *substream)
 671 {
 672         return snd_ca0106_pcm_open_capture_channel(substream, 3);
 673 }
 674
 675 /* hw_params callback */
 676 static int snd_ca0106_pcm_hw_params_playback(struct snd_pcm_substream *substream,
 677                                       struct snd_pcm_hw_params *hw_params)
 678 {
 679         return snd_pcm_lib_malloc_pages(substream,
 680                                         params_buffer_bytes(hw_params));
 681 }
 682
 683 /* hw_free callback */
 684 static int snd_ca0106_pcm_hw_free_playback(struct snd_pcm_substream *substream)
 685 {
 686         return snd_pcm_lib_free_pages(substream);
 687 }
 688
 689 /* hw_params callback */
 690 static int snd_ca0106_pcm_hw_params_capture(struct snd_pcm_substream *substream,
 691                                       struct snd_pcm_hw_params *hw_params)
 692 {
 693         return snd_pcm_lib_malloc_pages(substream,
 694                                         params_buffer_bytes(hw_params));
 695 }
 696
 697 /* hw_free callback */
 698 static int snd_ca0106_pcm_hw_free_capture(struct snd_pcm_substream *substream)
 699 {
 700         return snd_pcm_lib_free_pages(substream);
 701 }
 702
 703 /* prepare playback callback */
 704 static int snd_ca0106_pcm_prepare_playback(struct snd_pcm_substream *substream)
 705 {
 706         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 707         struct snd_pcm_runtime *runtime = substream->runtime;
 708         struct snd_ca0106_pcm *epcm = runtime->private_data;
 709         int channel = epcm->channel_id;
 710         u32 *table_base = (u32 *)(emu->buffer.area+(8*16*channel));
 711         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
 712         u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
 713         u32 hcfg_set = 0x00000000;
 714         u32 hcfg;
 715         u32 reg40_mask = 0x30000 << (channel<<1);
 716         u32 reg40_set = 0;
 717         u32 reg40;
 718         /* FIXME: Depending on mixer selection of SPDIF out or not, select the spdif rate or the DAC rate. */
 719         u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
 720         u32 reg71_set = 0;
 721         u32 reg71;
 722         int i;
 723
 724 #if 0 /* debug */
 725         snd_printk(KERN_DEBUG
 726                    "prepare:channel_number=%d, rate=%d, format=0x%x, "
 727                    "channels=%d, buffer_size=%ld, period_size=%ld, "
 728                    "periods=%u, frames_to_bytes=%d\n",
 729                    channel, runtime->rate, runtime->format,
 730                    runtime->channels, runtime->buffer_size,
 731                    runtime->period_size, runtime->periods,
 732                    frames_to_bytes(runtime, 1));
 733         snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, table_base=%p\n",
 734                    runtime->dma_addr, runtime->dma_area, table_base);
 735         snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
 736                    emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 737 #endif /* debug */
 738         /* Rate can be set per channel. */
 739         /* reg40 control host to fifo */
 740         /* reg71 controls DAC rate. */
 741         switch (runtime->rate) {
 742         case 44100:
 743                 reg40_set = 0x10000 << (channel<<1);
 744                 reg71_set = 0x01010000;
 745                 break;
 746         case 48000:
 747                 reg40_set = 0;
 748                 reg71_set = 0;
 749                 break;
 750         case 96000:
 751                 reg40_set = 0x20000 << (channel<<1);
 752                 reg71_set = 0x02020000;
 753                 break;
 754         case 192000:
 755                 reg40_set = 0x30000 << (channel<<1);
 756                 reg71_set = 0x03030000;
 757                 break;
 758         default:
 759                 reg40_set = 0;
 760                 reg71_set = 0;
 761                 break;
 762         }
 763         /* Format is a global setting */
 764         /* FIXME: Only let the first channel accessed set this. */
 765         switch (runtime->format) {
 766         case SNDRV_PCM_FORMAT_S16_LE:
 767                 hcfg_set = 0;
 768                 break;
 769         case SNDRV_PCM_FORMAT_S32_LE:
 770                 hcfg_set = HCFG_PLAYBACK_S32_LE;
 771                 break;
 772         default:
 773                 hcfg_set = 0;
 774                 break;
 775         }
 776         hcfg = inl(emu->port + HCFG) ;
 777         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 778         outl(hcfg, emu->port + HCFG);
 779         reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
 780         reg40 = (reg40 & ~reg40_mask) | reg40_set;
 781         snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
 782         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 783         reg71 = (reg71 & ~reg71_mask) | reg71_set;
 784         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 785
 786         /* FIXME: Check emu->buffer.size before actually writing to it. */
 787         for(i=0; i < runtime->periods; i++) {
 788                 table_base[i*2] = runtime->dma_addr + (i * period_size_bytes);
 789                 table_base[i*2+1] = period_size_bytes << 16;
 790         }
 791
 792         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
 793         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
 794         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
 795         snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
 796         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
 797         /* FIXME  test what 0 bytes does. */
 798         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
 799         snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
 800         snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
 801         snd_ca0106_ptr_write(emu, 0x08, channel, 0);
 802         snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
 803 #if 0
 804         snd_ca0106_ptr_write(emu, SPCS0, 0,
 805                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
 806                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
 807                                SPCS_GENERATIONSTATUS | 0x00001200 |
 808                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
 809 #endif
 810
 811         return 0;
 812 }
 813
 814 /* prepare capture callback */
 815 static int snd_ca0106_pcm_prepare_capture(struct snd_pcm_substream *substream)
 816 {
 817         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 818         struct snd_pcm_runtime *runtime = substream->runtime;
 819         struct snd_ca0106_pcm *epcm = runtime->private_data;
 820         int channel = epcm->channel_id;
 821         u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
 822         u32 hcfg_set = 0x00000000;
 823         u32 hcfg;
 824         u32 over_sampling=0x2;
 825         u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
 826         u32 reg71_set = 0;
 827         u32 reg71;
 828
 829 #if 0 /* debug */
 830         snd_printk(KERN_DEBUG
 831                    "prepare:channel_number=%d, rate=%d, format=0x%x, "
 832                    "channels=%d, buffer_size=%ld, period_size=%ld, "
 833                    "periods=%u, frames_to_bytes=%d\n",
 834                    channel, runtime->rate, runtime->format,
 835                    runtime->channels, runtime->buffer_size,
 836                    runtime->period_size, runtime->periods,
 837                    frames_to_bytes(runtime, 1));
 838         snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, table_base=%p\n",
 839                    runtime->dma_addr, runtime->dma_area, table_base);
 840         snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
 841                    emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 842 #endif /* debug */
 843         /* reg71 controls ADC rate. */
 844         switch (runtime->rate) {
 845         case 44100:
 846                 reg71_set = 0x00004000;
 847                 break;
 848         case 48000:
 849                 reg71_set = 0;
 850                 break;
 851         case 96000:
 852                 reg71_set = 0x00008000;
 853                 over_sampling=0xa;
 854                 break;
 855         case 192000:
 856                 reg71_set = 0x0000c000;
 857                 over_sampling=0xa;
 858                 break;
 859         default:
 860                 reg71_set = 0;
 861                 break;
 862         }
 863         /* Format is a global setting */
 864         /* FIXME: Only let the first channel accessed set this. */
 865         switch (runtime->format) {
 866         case SNDRV_PCM_FORMAT_S16_LE:
 867                 hcfg_set = 0;
 868                 break;
 869         case SNDRV_PCM_FORMAT_S32_LE:
 870                 hcfg_set = HCFG_CAPTURE_S32_LE;
 871                 break;
 872         default:
 873                 hcfg_set = 0;
 874                 break;
 875         }
 876         hcfg = inl(emu->port + HCFG) ;
 877         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 878         outl(hcfg, emu->port + HCFG);
 879         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 880         reg71 = (reg71 & ~reg71_mask) | reg71_set;
 881         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 882         if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
 883                 snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
 884         }
 885
 886
 887         /*
 888         printk(KERN_DEBUG
 889                "prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, "
 890                "buffer_size=%ld, period_size=%ld, frames_to_bytes=%d\n",
 891                channel, runtime->rate, runtime->format, runtime->channels,
 892                runtime->buffer_size, runtime->period_size,
 893                frames_to_bytes(runtime, 1));
 894         */
 895         snd_ca0106_ptr_write(emu, 0x13, channel, 0);
 896         snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
 897         snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
 898         snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
 899
 900         return 0;
 901 }
 902
 903 /* trigger_playback callback */
 904 static int snd_ca0106_pcm_trigger_playback(struct snd_pcm_substream *substream,
 905                                     int cmd)
 906 {
 907         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 908         struct snd_pcm_runtime *runtime;
 909         struct snd_ca0106_pcm *epcm;
 910         int channel;
 911         int result = 0;
 912         struct snd_pcm_substream *s;
 913         u32 basic = 0;
 914         u32 extended = 0;
 915         u32 bits;
 916         int running = 0;
 917
 918         switch (cmd) {
 919         case SNDRV_PCM_TRIGGER_START:
 920         case SNDRV_PCM_TRIGGER_RESUME:
 921                 running = 1;
 922                 break;
 923         case SNDRV_PCM_TRIGGER_STOP:
 924         case SNDRV_PCM_TRIGGER_SUSPEND:
 925         default:
 926                 running = 0;
 927                 break;
 928         }
 929         snd_pcm_group_for_each_entry(s, substream) {
 930                 if (snd_pcm_substream_chip(s) != emu ||
 931                     s->stream != SNDRV_PCM_STREAM_PLAYBACK)
 932                         continue;
 933                 runtime = s->runtime;
 934                 epcm = runtime->private_data;
 935                 channel = epcm->channel_id;
 936                 /* snd_printk(KERN_DEBUG "channel=%d\n", channel); */
 937                 epcm->running = running;
 938                 basic |= (0x1 << channel);
 939                 extended |= (0x10 << channel);
 940                 snd_pcm_trigger_done(s, substream);
 941         }
 942         /* snd_printk(KERN_DEBUG "basic=0x%x, extended=0x%x\n",basic, extended); */
 943
 944         switch (cmd) {
 945         case SNDRV_PCM_TRIGGER_START:
 946         case SNDRV_PCM_TRIGGER_RESUME:
 947                 bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
 948                 bits |= extended;
 949                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
 950                 bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
 951                 bits |= basic;
 952                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
 953                 break;
 954         case SNDRV_PCM_TRIGGER_STOP:
 955         case SNDRV_PCM_TRIGGER_SUSPEND:
 956                 bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
 957                 bits &= ~basic;
 958                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
 959                 bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
 960                 bits &= ~extended;
 961                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
 962                 break;
 963         default:
 964                 result = -EINVAL;
 965                 break;
 966         }
 967         return result;
 968 }
 969
 970 /* trigger_capture callback */
 971 static int snd_ca0106_pcm_trigger_capture(struct snd_pcm_substream *substream,
 972                                     int cmd)
 973 {
 974         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 975         struct snd_pcm_runtime *runtime = substream->runtime;
 976         struct snd_ca0106_pcm *epcm = runtime->private_data;
 977         int channel = epcm->channel_id;
 978         int result = 0;
 979
 980         switch (cmd) {
 981         case SNDRV_PCM_TRIGGER_START:
 982                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
 983                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
 984                 epcm->running = 1;
 985                 break;
 986         case SNDRV_PCM_TRIGGER_STOP:
 987                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
 988                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
 989                 epcm->running = 0;
 990                 break;
 991         default:
 992                 result = -EINVAL;
 993                 break;
 994         }
 995         return result;
 996 }
 997
 998 /* pointer_playback callback */
 999 static snd_pcm_uframes_t
1000 snd_ca0106_pcm_pointer_playback(struct snd_pcm_substream *substream)
1001 {
1002         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1003         struct snd_pcm_runtime *runtime = substream->runtime;
1004         struct snd_ca0106_pcm *epcm = runtime->private_data;
1005         snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
1006         int channel = epcm->channel_id;
1007
1008         if (!epcm->running)
1009                 return 0;
1010
1011         ptr3 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
1012         ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
1013         ptr4 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
1014         if (ptr3 != ptr4) ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
1015         ptr2 = bytes_to_frames(runtime, ptr1);
1016         ptr2+= (ptr4 >> 3) * runtime->period_size;
1017         ptr=ptr2;
1018         if (ptr >= runtime->buffer_size)
1019                 ptr -= runtime->buffer_size;
1020         /*
1021         printk(KERN_DEBUG "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
1022                "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
1023                ptr1, ptr2, ptr, (int)runtime->buffer_size,
1024                (int)runtime->period_size, (int)runtime->frame_bits,
1025                (int)runtime->rate);
1026         */
1027         return ptr;
1028 }
1029
1030 /* pointer_capture callback */
1031 static snd_pcm_uframes_t
1032 snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream *substream)
1033 {
1034         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1035         struct snd_pcm_runtime *runtime = substream->runtime;
1036         struct snd_ca0106_pcm *epcm = runtime->private_data;
1037         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
1038         int channel = channel=epcm->channel_id;
1039
1040         if (!epcm->running)
1041                 return 0;
1042
1043         ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
1044         ptr2 = bytes_to_frames(runtime, ptr1);
1045         ptr=ptr2;
1046         if (ptr >= runtime->buffer_size)
1047                 ptr -= runtime->buffer_size;
1048         /*
1049         printk(KERN_DEBUG "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
1050                "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
1051                ptr1, ptr2, ptr, (int)runtime->buffer_size,
1052                (int)runtime->period_size, (int)runtime->frame_bits,
1053                (int)runtime->rate);
1054         */
1055         return ptr;
1056 }
1057
1058 /* operators */
1059 static struct snd_pcm_ops snd_ca0106_playback_front_ops = {
1060         .open =        snd_ca0106_pcm_open_playback_front,
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_capture_0_ops = {
1071         .open =        snd_ca0106_pcm_open_0_capture,
1072         .close =       snd_ca0106_pcm_close_capture,
1073         .ioctl =       snd_pcm_lib_ioctl,
1074         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1075         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1076         .prepare =     snd_ca0106_pcm_prepare_capture,
1077         .trigger =     snd_ca0106_pcm_trigger_capture,
1078         .pointer =     snd_ca0106_pcm_pointer_capture,
1079 };
1080
1081 static struct snd_pcm_ops snd_ca0106_capture_1_ops = {
1082         .open =        snd_ca0106_pcm_open_1_capture,
1083         .close =       snd_ca0106_pcm_close_capture,
1084         .ioctl =       snd_pcm_lib_ioctl,
1085         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1086         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1087         .prepare =     snd_ca0106_pcm_prepare_capture,
1088         .trigger =     snd_ca0106_pcm_trigger_capture,
1089         .pointer =     snd_ca0106_pcm_pointer_capture,
1090 };
1091
1092 static struct snd_pcm_ops snd_ca0106_capture_2_ops = {
1093         .open =        snd_ca0106_pcm_open_2_capture,
1094         .close =       snd_ca0106_pcm_close_capture,
1095         .ioctl =       snd_pcm_lib_ioctl,
1096         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1097         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1098         .prepare =     snd_ca0106_pcm_prepare_capture,
1099         .trigger =     snd_ca0106_pcm_trigger_capture,
1100         .pointer =     snd_ca0106_pcm_pointer_capture,
1101 };
1102
1103 static struct snd_pcm_ops snd_ca0106_capture_3_ops = {
1104         .open =        snd_ca0106_pcm_open_3_capture,
1105         .close =       snd_ca0106_pcm_close_capture,
1106         .ioctl =       snd_pcm_lib_ioctl,
1107         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1108         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1109         .prepare =     snd_ca0106_pcm_prepare_capture,
1110         .trigger =     snd_ca0106_pcm_trigger_capture,
1111         .pointer =     snd_ca0106_pcm_pointer_capture,
1112 };
1113
1114 static struct snd_pcm_ops snd_ca0106_playback_center_lfe_ops = {
1115         .open =         snd_ca0106_pcm_open_playback_center_lfe,
1116         .close =        snd_ca0106_pcm_close_playback,
1117         .ioctl =        snd_pcm_lib_ioctl,
1118         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1119         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1120         .prepare =      snd_ca0106_pcm_prepare_playback,
1121         .trigger =      snd_ca0106_pcm_trigger_playback,
1122         .pointer =      snd_ca0106_pcm_pointer_playback,
1123 };
1124
1125 static struct snd_pcm_ops snd_ca0106_playback_unknown_ops = {
1126         .open =         snd_ca0106_pcm_open_playback_unknown,
1127         .close =        snd_ca0106_pcm_close_playback,
1128         .ioctl =        snd_pcm_lib_ioctl,
1129         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1130         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1131         .prepare =      snd_ca0106_pcm_prepare_playback,
1132         .trigger =      snd_ca0106_pcm_trigger_playback,
1133         .pointer =      snd_ca0106_pcm_pointer_playback,
1134 };
1135
1136 static struct snd_pcm_ops snd_ca0106_playback_rear_ops = {
1137         .open =         snd_ca0106_pcm_open_playback_rear,
1138         .close =        snd_ca0106_pcm_close_playback,
1139         .ioctl =        snd_pcm_lib_ioctl,
1140         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1141                 .hw_free =      snd_ca0106_pcm_hw_free_playback,
1142         .prepare =      snd_ca0106_pcm_prepare_playback,
1143         .trigger =      snd_ca0106_pcm_trigger_playback,
1144         .pointer =      snd_ca0106_pcm_pointer_playback,
1145 };
1146
1147
1148 static unsigned short snd_ca0106_ac97_read(struct snd_ac97 *ac97,
1149                                              unsigned short reg)
1150 {
1151         struct snd_ca0106 *emu = ac97->private_data;
1152         unsigned long flags;
1153         unsigned short val;
1154
1155         spin_lock_irqsave(&emu->emu_lock, flags);
1156         outb(reg, emu->port + AC97ADDRESS);
1157         val = inw(emu->port + AC97DATA);
1158         spin_unlock_irqrestore(&emu->emu_lock, flags);
1159         return val;
1160 }
1161
1162 static void snd_ca0106_ac97_write(struct snd_ac97 *ac97,
1163                                     unsigned short reg, unsigned short val)
1164 {
1165         struct snd_ca0106 *emu = ac97->private_data;
1166         unsigned long flags;
1167
1168         spin_lock_irqsave(&emu->emu_lock, flags);
1169         outb(reg, emu->port + AC97ADDRESS);
1170         outw(val, emu->port + AC97DATA);
1171         spin_unlock_irqrestore(&emu->emu_lock, flags);
1172 }
1173
1174 static int snd_ca0106_ac97(struct snd_ca0106 *chip)
1175 {
1176         struct snd_ac97_bus *pbus;
1177         struct snd_ac97_template ac97;
1178         int err;
1179         static struct snd_ac97_bus_ops ops = {
1180                 .write = snd_ca0106_ac97_write,
1181                 .read = snd_ca0106_ac97_read,
1182         };
1183
1184         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
1185                 return err;
1186         pbus->no_vra = 1; /* we don't need VRA */
1187
1188         memset(&ac97, 0, sizeof(ac97));
1189         ac97.private_data = chip;
1190         ac97.scaps = AC97_SCAP_NO_SPDIF;
1191         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1192 }
1193
1194 static void ca0106_stop_chip(struct snd_ca0106 *chip);
1195
1196 static int snd_ca0106_free(struct snd_ca0106 *chip)
1197 {
1198         if (chip->res_port != NULL) {
1199                 /* avoid access to already used hardware */
1200                 ca0106_stop_chip(chip);
1201         }
1202         if (chip->irq >= 0)
1203                 free_irq(chip->irq, chip);
1204         // release the data
1205 #if 1
1206         if (chip->buffer.area)
1207                 snd_dma_free_pages(&chip->buffer);
1208 #endif
1209
1210         // release the i/o port
1211         release_and_free_resource(chip->res_port);
1212
1213         pci_disable_device(chip->pci);
1214         kfree(chip);
1215         return 0;
1216 }
1217
1218 static int snd_ca0106_dev_free(struct snd_device *device)
1219 {
1220         struct snd_ca0106 *chip = device->device_data;
1221         return snd_ca0106_free(chip);
1222 }
1223
1224 static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
1225 {
1226         unsigned int status;
1227
1228         struct snd_ca0106 *chip = dev_id;
1229         int i;
1230         int mask;
1231         unsigned int stat76;
1232         struct snd_ca0106_channel *pchannel;
1233
1234         status = inl(chip->port + IPR);
1235         if (! status)
1236                 return IRQ_NONE;
1237
1238         stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1239         /*
1240         snd_printk(KERN_DEBUG "interrupt status = 0x%08x, stat76=0x%08x\n",
1241                    status, stat76);
1242         snd_printk(KERN_DEBUG "ptr=0x%08x\n",
1243                    snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1244         */
1245         mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1246         for(i = 0; i < 4; i++) {
1247                 pchannel = &(chip->playback_channels[i]);
1248                 if (stat76 & mask) {
1249 /* FIXME: Select the correct substream for period elapsed */
1250                         if(pchannel->use) {
1251                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1252                                 //printk(KERN_INFO "interrupt [%d] used\n", i);
1253                         }
1254                 }
1255                 //printk(KERN_INFO "channel=%p\n",pchannel);
1256                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1257                 mask <<= 1;
1258         }
1259         mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1260         for(i = 0; i < 4; i++) {
1261                 pchannel = &(chip->capture_channels[i]);
1262                 if (stat76 & mask) {
1263 /* FIXME: Select the correct substream for period elapsed */
1264                         if(pchannel->use) {
1265                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1266                                 //printk(KERN_INFO "interrupt [%d] used\n", i);
1267                         }
1268                 }
1269                 //printk(KERN_INFO "channel=%p\n",pchannel);
1270                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1271                 mask <<= 1;
1272         }
1273
1274         snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1275
1276         if (chip->midi.dev_id &&
1277             (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1278                 if (chip->midi.interrupt)
1279                         chip->midi.interrupt(&chip->midi, status);
1280                 else
1281                         chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1282         }
1283
1284         // acknowledge the interrupt if necessary
1285         outl(status, chip->port+IPR);
1286
1287         return IRQ_HANDLED;
1288 }
1289
1290 static int __devinit snd_ca0106_pcm(struct snd_ca0106 *emu, int device)
1291 {
1292         struct snd_pcm *pcm;
1293         struct snd_pcm_substream *substream;
1294         int err;
1295
1296         err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm);
1297         if (err < 0)
1298                 return err;
1299
1300         pcm->private_data = emu;
1301
1302         switch (device) {
1303         case 0:
1304           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1305           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1306           break;
1307         case 1:
1308           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1309           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1310           break;
1311         case 2:
1312           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1313           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1314           break;
1315         case 3:
1316           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1317           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1318           break;
1319         }
1320
1321         pcm->info_flags = 0;
1322         strcpy(pcm->name, "CA0106");
1323
1324         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
1325             substream;
1326             substream = substream->next) {
1327                 if ((err = snd_pcm_lib_preallocate_pages(substream,
1328                                                          SNDRV_DMA_TYPE_DEV,
1329                                                          snd_dma_pci_data(emu->pci),
1330                                                          64*1024, 64*1024)) < 0) /* FIXME: 32*1024 for sound buffer, between 32and64 for Periods table. */
1331                         return err;
1332         }
1333
1334         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
1335               substream;
1336               substream = substream->next) {
1337                 if ((err = snd_pcm_lib_preallocate_pages(substream,
1338                                                    SNDRV_DMA_TYPE_DEV,
1339                                                    snd_dma_pci_data(emu->pci),
1340                                                    64*1024, 64*1024)) < 0)
1341                         return err;
1342         }
1343
1344         emu->pcm[device] = pcm;
1345
1346         return 0;
1347 }
1348
1349 #define SPI_REG(reg, value)     (((reg) << SPI_REG_SHIFT) | (value))
1350 static unsigned int spi_dac_init[] = {
1351         SPI_REG(SPI_LDA1_REG,   SPI_DA_BIT_0dB), /* 0dB dig. attenuation */
1352         SPI_REG(SPI_RDA1_REG,   SPI_DA_BIT_0dB),
1353         SPI_REG(SPI_PL_REG,     SPI_PL_BIT_L_L | SPI_PL_BIT_R_R | SPI_IZD_BIT),
1354         SPI_REG(SPI_FMT_REG,    SPI_FMT_BIT_I2S | SPI_IWL_BIT_24),
1355         SPI_REG(SPI_LDA2_REG,   SPI_DA_BIT_0dB),
1356         SPI_REG(SPI_RDA2_REG,   SPI_DA_BIT_0dB),
1357         SPI_REG(SPI_LDA3_REG,   SPI_DA_BIT_0dB),
1358         SPI_REG(SPI_RDA3_REG,   SPI_DA_BIT_0dB),
1359         SPI_REG(SPI_MASTDA_REG, SPI_DA_BIT_0dB),
1360         SPI_REG(9,              0x00),
1361         SPI_REG(SPI_MS_REG,     SPI_DACD0_BIT | SPI_DACD1_BIT | SPI_DACD2_BIT),
1362         SPI_REG(12,             0x00),
1363         SPI_REG(SPI_LDA4_REG,   SPI_DA_BIT_0dB),
1364         SPI_REG(SPI_RDA4_REG,   SPI_DA_BIT_0dB | SPI_DA_BIT_UPDATE),
1365         SPI_REG(SPI_DACD4_REG,  0x00),
1366 };
1367
1368 static unsigned int i2c_adc_init[][2] = {
1369         { 0x17, 0x00 }, /* Reset */
1370         { 0x07, 0x00 }, /* Timeout */
1371         { 0x0b, 0x22 },  /* Interface control */
1372         { 0x0c, 0x22 },  /* Master mode control */
1373         { 0x0d, 0x08 },  /* Powerdown control */
1374         { 0x0e, 0xcf },  /* Attenuation Left  0x01 = -103dB, 0xff = 24dB */
1375         { 0x0f, 0xcf },  /* Attenuation Right 0.5dB steps */
1376         { 0x10, 0x7b },  /* ALC Control 1 */
1377         { 0x11, 0x00 },  /* ALC Control 2 */
1378         { 0x12, 0x32 },  /* ALC Control 3 */
1379         { 0x13, 0x00 },  /* Noise gate control */
1380         { 0x14, 0xa6 },  /* Limiter control */
1381         { 0x15, ADC_MUX_LINEIN },  /* ADC Mixer control */
1382 };
1383
1384 static void ca0106_init_chip(struct snd_ca0106 *chip, int resume)
1385 {
1386         int ch;
1387         unsigned int def_bits;
1388
1389         outl(0, chip->port + INTE);
1390
1391         /*
1392          *  Init to 0x02109204 :
1393          *  Clock accuracy    = 0     (1000ppm)
1394          *  Sample Rate       = 2     (48kHz)
1395          *  Audio Channel     = 1     (Left of 2)
1396          *  Source Number     = 0     (Unspecified)
1397          *  Generation Status = 1     (Original for Cat Code 12)
1398          *  Cat Code          = 12    (Digital Signal Mixer)
1399          *  Mode              = 0     (Mode 0)
1400          *  Emphasis          = 0     (None)
1401          *  CP                = 1     (Copyright unasserted)
1402          *  AN                = 0     (Audio data)
1403          *  P                 = 0     (Consumer)
1404          */
1405         def_bits =
1406                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1407                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1408                 SPCS_GENERATIONSTATUS | 0x00001200 |
1409                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT;
1410         if (!resume) {
1411                 chip->spdif_str_bits[0] = chip->spdif_bits[0] = def_bits;
1412                 chip->spdif_str_bits[1] = chip->spdif_bits[1] = def_bits;
1413                 chip->spdif_str_bits[2] = chip->spdif_bits[2] = def_bits;
1414                 chip->spdif_str_bits[3] = chip->spdif_bits[3] = def_bits;
1415         }
1416         /* Only SPCS1 has been tested */
1417         snd_ca0106_ptr_write(chip, SPCS1, 0, chip->spdif_str_bits[1]);
1418         snd_ca0106_ptr_write(chip, SPCS0, 0, chip->spdif_str_bits[0]);
1419         snd_ca0106_ptr_write(chip, SPCS2, 0, chip->spdif_str_bits[2]);
1420         snd_ca0106_ptr_write(chip, SPCS3, 0, chip->spdif_str_bits[3]);
1421
1422         snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1423         snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1424
1425         /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1426         outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
1427         outw(0x8000, chip->port + AC97DATA);
1428 #if 0 /* FIXME: what are these? */
1429         snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1430         snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1431         snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1432         snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1433 #endif
1434
1435         /* OSS drivers set this. */
1436         /* snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); */
1437
1438         /* Analog or Digital output */
1439         snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1440         /* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers.
1441          * Use 0x000f0000 for surround71
1442          */
1443         snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000);
1444
1445         chip->spdif_enable = 0; /* Set digital SPDIF output off */
1446         /*snd_ca0106_ptr_write(chip, 0x45, 0, 0);*/ /* Analogue out */
1447         /*snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00);*/ /* Digital out */
1448
1449         /* goes to 0x40c80000 when doing SPDIF IN/OUT */
1450         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000);
1451         /* (Mute) CAPTURE feedback into PLAYBACK volume.
1452          * Only lower 16 bits matter.
1453          */
1454         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff);
1455         /* SPDIF IN Volume */
1456         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000);
1457         /* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1458         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000);
1459
1460         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1461         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1462         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1463         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1464
1465         for (ch = 0; ch < 4; ch++) {
1466                 /* Only high 16 bits matter */
1467                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030);
1468                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1469 #if 0 /* Mute */
1470                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040);
1471                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040);
1472                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff);
1473                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff);
1474 #endif
1475         }
1476         if (chip->details->i2c_adc == 1) {
1477                 /* Select MIC, Line in, TAD in, AUX in */
1478                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1479                 /* Default to CAPTURE_SOURCE to i2s in */
1480                 if (!resume)
1481                         chip->capture_source = 3;
1482         } else if (chip->details->ac97 == 1) {
1483                 /* Default to AC97 in */
1484                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x444400e4);
1485                 /* Default to CAPTURE_SOURCE to AC97 in */
1486                 if (!resume)
1487                         chip->capture_source = 4;
1488         } else {
1489                 /* Select MIC, Line in, TAD in, AUX in */
1490                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1491                 /* Default to Set CAPTURE_SOURCE to i2s in */
1492                 if (!resume)
1493                         chip->capture_source = 3;
1494         }
1495
1496         if (chip->details->gpio_type == 2) {
1497                 /* The SB0438 use GPIO differently. */
1498                 /* FIXME: Still need to find out what the other GPIO bits do.
1499                  * E.g. For digital spdif out.
1500                  */
1501                 outl(0x0, chip->port+GPIO);
1502                 /* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1503                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1504         } else if (chip->details->gpio_type == 1) {
1505                 /* The SB0410 and SB0413 use GPIO differently. */
1506                 /* FIXME: Still need to find out what the other GPIO bits do.
1507                  * E.g. For digital spdif out.
1508                  */
1509                 outl(0x0, chip->port+GPIO);
1510                 /* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1511                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1512         } else {
1513                 outl(0x0, chip->port+GPIO);
1514                 outl(0x005f03a3, chip->port+GPIO); /* Analog */
1515                 /* outl(0x005f02a2, chip->port+GPIO); */ /* SPDIF */
1516         }
1517         snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1518
1519         /* outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG); */
1520         /* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1521         /* outl(0x00001409, chip->port+HCFG); */
1522         /* outl(0x00000009, chip->port+HCFG); */
1523         /* AC97 2.0, Enable outputs. */
1524         outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG);
1525
1526         if (chip->details->i2c_adc == 1) {
1527                 /* The SB0410 and SB0413 use I2C to control ADC. */
1528                 int size, n;
1529
1530                 size = ARRAY_SIZE(i2c_adc_init);
1531                 /* snd_printk(KERN_DEBUG "I2C:array size=0x%x\n", size); */
1532                 for (n = 0; n < size; n++)
1533                         snd_ca0106_i2c_write(chip, i2c_adc_init[n][0],
1534                                              i2c_adc_init[n][1]);
1535                 for (n = 0; n < 4; n++) {
1536                         chip->i2c_capture_volume[n][0] = 0xcf;
1537                         chip->i2c_capture_volume[n][1] = 0xcf;
1538                 }
1539                 chip->i2c_capture_source = 2; /* Line in */
1540                 /* Enable Line-in capture. MIC in currently untested. */
1541                 /* snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); */
1542         }
1543
1544         if (chip->details->spi_dac == 1) {
1545                 /* The SB0570 use SPI to control DAC. */
1546                 int size, n;
1547
1548                 size = ARRAY_SIZE(spi_dac_init);
1549                 for (n = 0; n < size; n++) {
1550                         int reg = spi_dac_init[n] >> SPI_REG_SHIFT;
1551
1552                         snd_ca0106_spi_write(chip, spi_dac_init[n]);
1553                         if (reg < ARRAY_SIZE(chip->spi_dac_reg))
1554                                 chip->spi_dac_reg[reg] = spi_dac_init[n];
1555                 }
1556         }
1557 }
1558
1559 static void ca0106_stop_chip(struct snd_ca0106 *chip)
1560 {
1561         /* disable interrupts */
1562         snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
1563         outl(0, chip->port + INTE);
1564         snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
1565         udelay(1000);
1566         /* disable audio */
1567         /* outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG); */
1568         outl(0, chip->port + HCFG);
1569         /* FIXME: We need to stop and DMA transfers here.
1570          *        But as I am not sure how yet, we cannot from the dma pages.
1571          * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
1572          */
1573 }
1574
1575 static int __devinit snd_ca0106_create(int dev, struct snd_card *card,
1576                                          struct pci_dev *pci,
1577                                          struct snd_ca0106 **rchip)
1578 {
1579         struct snd_ca0106 *chip;
1580         struct snd_ca0106_details *c;
1581         int err;
1582         static struct snd_device_ops ops = {
1583                 .dev_free = snd_ca0106_dev_free,
1584         };
1585
1586         *rchip = NULL;
1587
1588         err = pci_enable_device(pci);
1589         if (err < 0)
1590                 return err;
1591         if (pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0 ||
1592             pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32)) < 0) {
1593                 printk(KERN_ERR "error to set 32bit mask DMA\n");
1594                 pci_disable_device(pci);
1595                 return -ENXIO;
1596         }
1597
1598         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1599         if (chip == NULL) {
1600                 pci_disable_device(pci);
1601                 return -ENOMEM;
1602         }
1603
1604         chip->card = card;
1605         chip->pci = pci;
1606         chip->irq = -1;
1607
1608         spin_lock_init(&chip->emu_lock);
1609
1610         chip->port = pci_resource_start(pci, 0);
1611         chip->res_port = request_region(chip->port, 0x20, "snd_ca0106");
1612         if (!chip->res_port) {
1613                 snd_ca0106_free(chip);
1614                 printk(KERN_ERR "cannot allocate the port\n");
1615                 return -EBUSY;
1616         }
1617
1618         if (request_irq(pci->irq, snd_ca0106_interrupt,
1619                         IRQF_SHARED, "snd_ca0106", chip)) {
1620                 snd_ca0106_free(chip);
1621                 printk(KERN_ERR "cannot grab irq\n");
1622                 return -EBUSY;
1623         }
1624         chip->irq = pci->irq;
1625
1626         /* This stores the periods table. */
1627         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1628                                 1024, &chip->buffer) < 0) {
1629                 snd_ca0106_free(chip);
1630                 return -ENOMEM;
1631         }
1632
1633         pci_set_master(pci);
1634         /* read serial */
1635         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1636         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1637         printk(KERN_INFO "snd-ca0106: Model %04x Rev %08x Serial %08x\n",
1638                chip->model, pci->revision, chip->serial);
1639         strcpy(card->driver, "CA0106");
1640         strcpy(card->shortname, "CA0106");
1641
1642         for (c = ca0106_chip_details; c->serial; c++) {
1643                 if (subsystem[dev]) {
1644                         if (c->serial == subsystem[dev])
1645                                 break;
1646                 } else if (c->serial == chip->serial)
1647                         break;
1648         }
1649         chip->details = c;
1650         if (subsystem[dev]) {
1651                 printk(KERN_INFO "snd-ca0106: Sound card name=%s, "
1652                        "subsystem=0x%x. Forced to subsystem=0x%x\n",
1653                        c->name, chip->serial, subsystem[dev]);
1654         }
1655
1656         sprintf(card->longname, "%s at 0x%lx irq %i",
1657                 c->name, chip->port, chip->irq);
1658
1659         ca0106_init_chip(chip, 0);
1660
1661         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1662         if (err < 0) {
1663                 snd_ca0106_free(chip);
1664                 return err;
1665         }
1666         *rchip = chip;
1667         return 0;
1668 }
1669
1670
1671 static void ca0106_midi_interrupt_enable(struct snd_ca_midi *midi, int intr)
1672 {
1673         snd_ca0106_intr_enable((struct snd_ca0106 *)(midi->dev_id), intr);
1674 }
1675
1676 static void ca0106_midi_interrupt_disable(struct snd_ca_midi *midi, int intr)
1677 {
1678         snd_ca0106_intr_disable((struct snd_ca0106 *)(midi->dev_id), intr);
1679 }
1680
1681 static unsigned char ca0106_midi_read(struct snd_ca_midi *midi, int idx)
1682 {
1683         return (unsigned char)snd_ca0106_ptr_read((struct snd_ca0106 *)(midi->dev_id),
1684                                                   midi->port + idx, 0);
1685 }
1686
1687 static void ca0106_midi_write(struct snd_ca_midi *midi, int data, int idx)
1688 {
1689         snd_ca0106_ptr_write((struct snd_ca0106 *)(midi->dev_id), midi->port + idx, 0, data);
1690 }
1691
1692 static struct snd_card *ca0106_dev_id_card(void *dev_id)
1693 {
1694         return ((struct snd_ca0106 *)dev_id)->card;
1695 }
1696
1697 static int ca0106_dev_id_port(void *dev_id)
1698 {
1699         return ((struct snd_ca0106 *)dev_id)->port;
1700 }
1701
1702 static int __devinit snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
1703 {
1704         struct snd_ca_midi *midi;
1705         char *name;
1706         int err;
1707
1708         if (channel == CA0106_MIDI_CHAN_B) {
1709                 name = "CA0106 MPU-401 (UART) B";
1710                 midi =  &chip->midi2;
1711                 midi->tx_enable = INTE_MIDI_TX_B;
1712                 midi->rx_enable = INTE_MIDI_RX_B;
1713                 midi->ipr_tx = IPR_MIDI_TX_B;
1714                 midi->ipr_rx = IPR_MIDI_RX_B;
1715                 midi->port = MIDI_UART_B_DATA;
1716         } else {
1717                 name = "CA0106 MPU-401 (UART)";
1718                 midi =  &chip->midi;
1719                 midi->tx_enable = INTE_MIDI_TX_A;
1720                 midi->rx_enable = INTE_MIDI_TX_B;
1721                 midi->ipr_tx = IPR_MIDI_TX_A;
1722                 midi->ipr_rx = IPR_MIDI_RX_A;
1723                 midi->port = MIDI_UART_A_DATA;
1724         }
1725
1726         midi->reset = CA0106_MPU401_RESET;
1727         midi->enter_uart = CA0106_MPU401_ENTER_UART;
1728         midi->ack = CA0106_MPU401_ACK;
1729
1730         midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1731         midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1732
1733         midi->channel = channel;
1734
1735         midi->interrupt_enable = ca0106_midi_interrupt_enable;
1736         midi->interrupt_disable = ca0106_midi_interrupt_disable;
1737
1738         midi->read = ca0106_midi_read;
1739         midi->write = ca0106_midi_write;
1740
1741         midi->get_dev_id_card = ca0106_dev_id_card;
1742         midi->get_dev_id_port = ca0106_dev_id_port;
1743
1744         midi->dev_id = chip;
1745
1746         if ((err = ca_midi_init(chip, midi, 0, name)) < 0)
1747                 return err;
1748
1749         return 0;
1750 }
1751
1752
1753 static int __devinit snd_ca0106_probe(struct pci_dev *pci,
1754                                         const struct pci_device_id *pci_id)
1755 {
1756         static int dev;
1757         struct snd_card *card;
1758         struct snd_ca0106 *chip;
1759         int i, err;
1760
1761         if (dev >= SNDRV_CARDS)
1762                 return -ENODEV;
1763         if (!enable[dev]) {
1764                 dev++;
1765                 return -ENOENT;
1766         }
1767
1768         err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
1769         if (err < 0)
1770                 return err;
1771
1772         err = snd_ca0106_create(dev, card, pci, &chip);
1773         if (err < 0)
1774                 goto error;
1775         card->private_data = chip;
1776
1777         for (i = 0; i < 4; i++) {
1778                 err = snd_ca0106_pcm(chip, i);
1779                 if (err < 0)
1780                         goto error;
1781         }
1782
1783         if (chip->details->ac97 == 1) {
1784                 /* The SB0410 and SB0413 do not have an AC97 chip. */
1785                 err = snd_ca0106_ac97(chip);
1786                 if (err < 0)
1787                         goto error;
1788         }
1789         err = snd_ca0106_mixer(chip);
1790         if (err < 0)
1791                 goto error;
1792
1793         snd_printdd("ca0106: probe for MIDI channel A ...");
1794         err = snd_ca0106_midi(chip, CA0106_MIDI_CHAN_A);
1795         if (err < 0)
1796                 goto error;
1797         snd_printdd(" done.\n");
1798
1799 #ifdef CONFIG_PROC_FS
1800         snd_ca0106_proc_init(chip);
1801 #endif
1802
1803         snd_card_set_dev(card, &pci->dev);
1804
1805         err = snd_card_register(card);
1806         if (err < 0)
1807                 goto error;
1808
1809         pci_set_drvdata(pci, card);
1810         dev++;
1811         return 0;
1812
1813  error:
1814         snd_card_free(card);
1815         return err;
1816 }
1817
1818 static void __devexit snd_ca0106_remove(struct pci_dev *pci)
1819 {
1820         snd_card_free(pci_get_drvdata(pci));
1821         pci_set_drvdata(pci, NULL);
1822 }
1823
1824 #ifdef CONFIG_PM
1825 static int snd_ca0106_suspend(struct pci_dev *pci, pm_message_t state)
1826 {
1827         struct snd_card *card = pci_get_drvdata(pci);
1828         struct snd_ca0106 *chip = card->private_data;
1829         int i;
1830
1831         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1832         for (i = 0; i < 4; i++)
1833                 snd_pcm_suspend_all(chip->pcm[i]);
1834         if (chip->details->ac97)
1835                 snd_ac97_suspend(chip->ac97);
1836         snd_ca0106_mixer_suspend(chip);
1837
1838         ca0106_stop_chip(chip);
1839
1840         pci_disable_device(pci);
1841         pci_save_state(pci);
1842         pci_set_power_state(pci, pci_choose_state(pci, state));
1843         return 0;
1844 }
1845
1846 static int snd_ca0106_resume(struct pci_dev *pci)
1847 {
1848         struct snd_card *card = pci_get_drvdata(pci);
1849         struct snd_ca0106 *chip = card->private_data;
1850         int i;
1851
1852         pci_set_power_state(pci, PCI_D0);
1853         pci_restore_state(pci);
1854
1855         if (pci_enable_device(pci) < 0) {
1856                 snd_card_disconnect(card);
1857                 return -EIO;
1858         }
1859
1860         pci_set_master(pci);
1861
1862         ca0106_init_chip(chip, 1);
1863
1864         if (chip->details->ac97)
1865                 snd_ac97_resume(chip->ac97);
1866         snd_ca0106_mixer_resume(chip);
1867         if (chip->details->spi_dac) {
1868                 for (i = 0; i < ARRAY_SIZE(chip->spi_dac_reg); i++)
1869                         snd_ca0106_spi_write(chip, chip->spi_dac_reg[i]);
1870         }
1871
1872         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1873         return 0;
1874 }
1875 #endif
1876
1877 // PCI IDs
1878 static struct pci_device_id snd_ca0106_ids[] = {
1879         { PCI_VDEVICE(CREATIVE, 0x0007), 0 },   /* Audigy LS or Live 24bit */
1880         { 0, }
1881 };
1882 MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1883
1884 // pci_driver definition
1885 static struct pci_driver driver = {
1886         .name = "CA0106",
1887         .id_table = snd_ca0106_ids,
1888         .probe = snd_ca0106_probe,
1889         .remove = __devexit_p(snd_ca0106_remove),
1890 #ifdef CONFIG_PM
1891         .suspend = snd_ca0106_suspend,
1892         .resume = snd_ca0106_resume,
1893 #endif
1894 };
1895
1896 // initialization of the module
1897 static int __init alsa_card_ca0106_init(void)
1898 {
1899         return pci_register_driver(&driver);
1900 }
1901
1902 // clean up the module
1903 static void __exit alsa_card_ca0106_exit(void)
1904 {
1905         pci_unregister_driver(&driver);
1906 }
1907
1908 module_init(alsa_card_ca0106_init)
1909 module_exit(alsa_card_ca0106_exit)