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         // snd_printk("I2C-write:reg=0x%x, value=0x%x\n", reg, value);
 416         /* Not sure what this I2C channel controls. */
 417         /* snd_ca0106_ptr_write(emu, I2C_D0, 0, tmp); */
 418
 419         /* This controls the I2C connected to the WM8775 ADC Codec */
 420         snd_ca0106_ptr_write(emu, I2C_D1, 0, tmp);
 421
 422         for (retry = 0; retry < 10; retry++) {
 423                 /* Send the data to i2c */
 424                 //tmp = snd_ca0106_ptr_read(emu, I2C_A, 0);
 425                 //tmp = tmp & ~(I2C_A_ADC_READ|I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD_MASK);
 426                 tmp = 0;
 427                 tmp = tmp | (I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD);
 428                 snd_ca0106_ptr_write(emu, I2C_A, 0, tmp);
 429
 430                 /* Wait till the transaction ends */
 431                 while (1) {
 432                         status = snd_ca0106_ptr_read(emu, I2C_A, 0);
 433                         //snd_printk("I2C:status=0x%x\n", status);
 434                         timeout++;
 435                         if ((status & I2C_A_ADC_START) == 0)
 436                                 break;
 437
 438                         if (timeout > 1000)
 439                                 break;
 440                 }
 441                 //Read back and see if the transaction is successful
 442                 if ((status & I2C_A_ADC_ABORT) == 0)
 443                         break;
 444         }
 445
 446         if (retry == 10) {
 447                 snd_printk(KERN_ERR "Writing to ADC failed!\n");
 448                 return -EINVAL;
 449         }
 450
 451         return 0;
 452 }
 453
 454
 455 static void snd_ca0106_intr_enable(struct snd_ca0106 *emu, unsigned int intrenb)
 456 {
 457         unsigned long flags;
 458         unsigned int intr_enable;
 459
 460         spin_lock_irqsave(&emu->emu_lock, flags);
 461         intr_enable = inl(emu->port + INTE) | intrenb;
 462         outl(intr_enable, emu->port + INTE);
 463         spin_unlock_irqrestore(&emu->emu_lock, flags);
 464 }
 465
 466 static void snd_ca0106_intr_disable(struct snd_ca0106 *emu, unsigned int intrenb)
 467 {
 468         unsigned long flags;
 469         unsigned int intr_enable;
 470
 471         spin_lock_irqsave(&emu->emu_lock, flags);
 472         intr_enable = inl(emu->port + INTE) & ~intrenb;
 473         outl(intr_enable, emu->port + INTE);
 474         spin_unlock_irqrestore(&emu->emu_lock, flags);
 475 }
 476
 477
 478 static void snd_ca0106_pcm_free_substream(struct snd_pcm_runtime *runtime)
 479 {
 480         kfree(runtime->private_data);
 481 }
 482
 483 static const int spi_dacd_reg[] = {
 484         [PCM_FRONT_CHANNEL]     = SPI_DACD4_REG,
 485         [PCM_REAR_CHANNEL]      = SPI_DACD0_REG,
 486         [PCM_CENTER_LFE_CHANNEL]= SPI_DACD2_REG,
 487         [PCM_UNKNOWN_CHANNEL]   = SPI_DACD1_REG,
 488 };
 489 static const int spi_dacd_bit[] = {
 490         [PCM_FRONT_CHANNEL]     = SPI_DACD4_BIT,
 491         [PCM_REAR_CHANNEL]      = SPI_DACD0_BIT,
 492         [PCM_CENTER_LFE_CHANNEL]= SPI_DACD2_BIT,
 493         [PCM_UNKNOWN_CHANNEL]   = SPI_DACD1_BIT,
 494 };
 495
 496 static void restore_spdif_bits(struct snd_ca0106 *chip, int idx)
 497 {
 498         if (chip->spdif_str_bits[idx] != chip->spdif_bits[idx]) {
 499                 chip->spdif_str_bits[idx] = chip->spdif_bits[idx];
 500                 snd_ca0106_ptr_write(chip, SPCS0 + idx, 0,
 501                                      chip->spdif_str_bits[idx]);
 502         }
 503 }
 504
 505 /* open_playback callback */
 506 static int snd_ca0106_pcm_open_playback_channel(struct snd_pcm_substream *substream,
 507                                                 int channel_id)
 508 {
 509         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 510         struct snd_ca0106_channel *channel = &(chip->playback_channels[channel_id]);
 511         struct snd_ca0106_pcm *epcm;
 512         struct snd_pcm_runtime *runtime = substream->runtime;
 513         int err;
 514
 515         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 516
 517         if (epcm == NULL)
 518                 return -ENOMEM;
 519         epcm->emu = chip;
 520         epcm->substream = substream;
 521         epcm->channel_id=channel_id;
 522
 523         runtime->private_data = epcm;
 524         runtime->private_free = snd_ca0106_pcm_free_substream;
 525
 526         runtime->hw = snd_ca0106_playback_hw;
 527
 528         channel->emu = chip;
 529         channel->number = channel_id;
 530
 531         channel->use = 1;
 532         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
 533         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 534         channel->epcm = epcm;
 535         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 536                 return err;
 537         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 538                 return err;
 539         snd_pcm_set_sync(substream);
 540
 541         if (chip->details->spi_dac && channel_id != PCM_FRONT_CHANNEL) {
 542                 const int reg = spi_dacd_reg[channel_id];
 543
 544                 /* Power up dac */
 545                 chip->spi_dac_reg[reg] &= ~spi_dacd_bit[channel_id];
 546                 err = snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
 547                 if (err < 0)
 548                         return err;
 549         }
 550
 551         restore_spdif_bits(chip, channel_id);
 552
 553         return 0;
 554 }
 555
 556 /* close callback */
 557 static int snd_ca0106_pcm_close_playback(struct snd_pcm_substream *substream)
 558 {
 559         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 560         struct snd_pcm_runtime *runtime = substream->runtime;
 561         struct snd_ca0106_pcm *epcm = runtime->private_data;
 562         chip->playback_channels[epcm->channel_id].use = 0;
 563
 564         restore_spdif_bits(chip, epcm->channel_id);
 565
 566         if (chip->details->spi_dac && epcm->channel_id != PCM_FRONT_CHANNEL) {
 567                 const int reg = spi_dacd_reg[epcm->channel_id];
 568
 569                 /* Power down DAC */
 570                 chip->spi_dac_reg[reg] |= spi_dacd_bit[epcm->channel_id];
 571                 snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
 572         }
 573         /* FIXME: maybe zero others */
 574         return 0;
 575 }
 576
 577 static int snd_ca0106_pcm_open_playback_front(struct snd_pcm_substream *substream)
 578 {
 579         return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
 580 }
 581
 582 static int snd_ca0106_pcm_open_playback_center_lfe(struct snd_pcm_substream *substream)
 583 {
 584         return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
 585 }
 586
 587 static int snd_ca0106_pcm_open_playback_unknown(struct snd_pcm_substream *substream)
 588 {
 589         return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
 590 }
 591
 592 static int snd_ca0106_pcm_open_playback_rear(struct snd_pcm_substream *substream)
 593 {
 594         return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
 595 }
 596
 597 /* open_capture callback */
 598 static int snd_ca0106_pcm_open_capture_channel(struct snd_pcm_substream *substream,
 599                                                int channel_id)
 600 {
 601         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 602         struct snd_ca0106_channel *channel = &(chip->capture_channels[channel_id]);
 603         struct snd_ca0106_pcm *epcm;
 604         struct snd_pcm_runtime *runtime = substream->runtime;
 605         int err;
 606
 607         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 608         if (epcm == NULL) {
 609                 snd_printk(KERN_ERR "open_capture_channel: failed epcm alloc\n");
 610                 return -ENOMEM;
 611         }
 612         epcm->emu = chip;
 613         epcm->substream = substream;
 614         epcm->channel_id=channel_id;
 615
 616         runtime->private_data = epcm;
 617         runtime->private_free = snd_ca0106_pcm_free_substream;
 618
 619         runtime->hw = snd_ca0106_capture_hw;
 620
 621         channel->emu = chip;
 622         channel->number = channel_id;
 623
 624         channel->use = 1;
 625         //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
 626         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 627         channel->epcm = epcm;
 628         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 629                 return err;
 630         //snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
 631         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 632                 return err;
 633         return 0;
 634 }
 635
 636 /* close callback */
 637 static int snd_ca0106_pcm_close_capture(struct snd_pcm_substream *substream)
 638 {
 639         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 640         struct snd_pcm_runtime *runtime = substream->runtime;
 641         struct snd_ca0106_pcm *epcm = runtime->private_data;
 642         chip->capture_channels[epcm->channel_id].use = 0;
 643         /* FIXME: maybe zero others */
 644         return 0;
 645 }
 646
 647 static int snd_ca0106_pcm_open_0_capture(struct snd_pcm_substream *substream)
 648 {
 649         return snd_ca0106_pcm_open_capture_channel(substream, 0);
 650 }
 651
 652 static int snd_ca0106_pcm_open_1_capture(struct snd_pcm_substream *substream)
 653 {
 654         return snd_ca0106_pcm_open_capture_channel(substream, 1);
 655 }
 656
 657 static int snd_ca0106_pcm_open_2_capture(struct snd_pcm_substream *substream)
 658 {
 659         return snd_ca0106_pcm_open_capture_channel(substream, 2);
 660 }
 661
 662 static int snd_ca0106_pcm_open_3_capture(struct snd_pcm_substream *substream)
 663 {
 664         return snd_ca0106_pcm_open_capture_channel(substream, 3);
 665 }
 666
 667 /* hw_params callback */
 668 static int snd_ca0106_pcm_hw_params_playback(struct snd_pcm_substream *substream,
 669                                       struct snd_pcm_hw_params *hw_params)
 670 {
 671         return snd_pcm_lib_malloc_pages(substream,
 672                                         params_buffer_bytes(hw_params));
 673 }
 674
 675 /* hw_free callback */
 676 static int snd_ca0106_pcm_hw_free_playback(struct snd_pcm_substream *substream)
 677 {
 678         return snd_pcm_lib_free_pages(substream);
 679 }
 680
 681 /* hw_params callback */
 682 static int snd_ca0106_pcm_hw_params_capture(struct snd_pcm_substream *substream,
 683                                       struct snd_pcm_hw_params *hw_params)
 684 {
 685         return snd_pcm_lib_malloc_pages(substream,
 686                                         params_buffer_bytes(hw_params));
 687 }
 688
 689 /* hw_free callback */
 690 static int snd_ca0106_pcm_hw_free_capture(struct snd_pcm_substream *substream)
 691 {
 692         return snd_pcm_lib_free_pages(substream);
 693 }
 694
 695 /* prepare playback callback */
 696 static int snd_ca0106_pcm_prepare_playback(struct snd_pcm_substream *substream)
 697 {
 698         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 699         struct snd_pcm_runtime *runtime = substream->runtime;
 700         struct snd_ca0106_pcm *epcm = runtime->private_data;
 701         int channel = epcm->channel_id;
 702         u32 *table_base = (u32 *)(emu->buffer.area+(8*16*channel));
 703         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
 704         u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
 705         u32 hcfg_set = 0x00000000;
 706         u32 hcfg;
 707         u32 reg40_mask = 0x30000 << (channel<<1);
 708         u32 reg40_set = 0;
 709         u32 reg40;
 710         /* FIXME: Depending on mixer selection of SPDIF out or not, select the spdif rate or the DAC rate. */
 711         u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
 712         u32 reg71_set = 0;
 713         u32 reg71;
 714         int i;
 715
 716         //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));
 717         //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
 718         //snd_printk("dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 719         /* Rate can be set per channel. */
 720         /* reg40 control host to fifo */
 721         /* reg71 controls DAC rate. */
 722         switch (runtime->rate) {
 723         case 44100:
 724                 reg40_set = 0x10000 << (channel<<1);
 725                 reg71_set = 0x01010000;
 726                 break;
 727         case 48000:
 728                 reg40_set = 0;
 729                 reg71_set = 0;
 730                 break;
 731         case 96000:
 732                 reg40_set = 0x20000 << (channel<<1);
 733                 reg71_set = 0x02020000;
 734                 break;
 735         case 192000:
 736                 reg40_set = 0x30000 << (channel<<1);
 737                 reg71_set = 0x03030000;
 738                 break;
 739         default:
 740                 reg40_set = 0;
 741                 reg71_set = 0;
 742                 break;
 743         }
 744         /* Format is a global setting */
 745         /* FIXME: Only let the first channel accessed set this. */
 746         switch (runtime->format) {
 747         case SNDRV_PCM_FORMAT_S16_LE:
 748                 hcfg_set = 0;
 749                 break;
 750         case SNDRV_PCM_FORMAT_S32_LE:
 751                 hcfg_set = HCFG_PLAYBACK_S32_LE;
 752                 break;
 753         default:
 754                 hcfg_set = 0;
 755                 break;
 756         }
 757         hcfg = inl(emu->port + HCFG) ;
 758         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 759         outl(hcfg, emu->port + HCFG);
 760         reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
 761         reg40 = (reg40 & ~reg40_mask) | reg40_set;
 762         snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
 763         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 764         reg71 = (reg71 & ~reg71_mask) | reg71_set;
 765         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 766
 767         /* FIXME: Check emu->buffer.size before actually writing to it. */
 768         for(i=0; i < runtime->periods; i++) {
 769                 table_base[i*2] = runtime->dma_addr + (i * period_size_bytes);
 770                 table_base[i*2+1] = period_size_bytes << 16;
 771         }
 772
 773         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
 774         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
 775         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
 776         snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
 777         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
 778         /* FIXME  test what 0 bytes does. */
 779         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
 780         snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
 781         snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
 782         snd_ca0106_ptr_write(emu, 0x08, channel, 0);
 783         snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
 784 #if 0
 785         snd_ca0106_ptr_write(emu, SPCS0, 0,
 786                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
 787                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
 788                                SPCS_GENERATIONSTATUS | 0x00001200 |
 789                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
 790 #endif
 791
 792         return 0;
 793 }
 794
 795 /* prepare capture callback */
 796 static int snd_ca0106_pcm_prepare_capture(struct snd_pcm_substream *substream)
 797 {
 798         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 799         struct snd_pcm_runtime *runtime = substream->runtime;
 800         struct snd_ca0106_pcm *epcm = runtime->private_data;
 801         int channel = epcm->channel_id;
 802         u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
 803         u32 hcfg_set = 0x00000000;
 804         u32 hcfg;
 805         u32 over_sampling=0x2;
 806         u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
 807         u32 reg71_set = 0;
 808         u32 reg71;
 809
 810         //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));
 811         //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
 812         //snd_printk("dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 813         /* reg71 controls ADC rate. */
 814         switch (runtime->rate) {
 815         case 44100:
 816                 reg71_set = 0x00004000;
 817                 break;
 818         case 48000:
 819                 reg71_set = 0;
 820                 break;
 821         case 96000:
 822                 reg71_set = 0x00008000;
 823                 over_sampling=0xa;
 824                 break;
 825         case 192000:
 826                 reg71_set = 0x0000c000;
 827                 over_sampling=0xa;
 828                 break;
 829         default:
 830                 reg71_set = 0;
 831                 break;
 832         }
 833         /* Format is a global setting */
 834         /* FIXME: Only let the first channel accessed set this. */
 835         switch (runtime->format) {
 836         case SNDRV_PCM_FORMAT_S16_LE:
 837                 hcfg_set = 0;
 838                 break;
 839         case SNDRV_PCM_FORMAT_S32_LE:
 840                 hcfg_set = HCFG_CAPTURE_S32_LE;
 841                 break;
 842         default:
 843                 hcfg_set = 0;
 844                 break;
 845         }
 846         hcfg = inl(emu->port + HCFG) ;
 847         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 848         outl(hcfg, emu->port + HCFG);
 849         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 850         reg71 = (reg71 & ~reg71_mask) | reg71_set;
 851         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 852         if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
 853                 snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
 854         }
 855
 856
 857         //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));
 858         snd_ca0106_ptr_write(emu, 0x13, channel, 0);
 859         snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
 860         snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
 861         snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
 862
 863         return 0;
 864 }
 865
 866 /* trigger_playback callback */
 867 static int snd_ca0106_pcm_trigger_playback(struct snd_pcm_substream *substream,
 868                                     int cmd)
 869 {
 870         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 871         struct snd_pcm_runtime *runtime;
 872         struct snd_ca0106_pcm *epcm;
 873         int channel;
 874         int result = 0;
 875         struct snd_pcm_substream *s;
 876         u32 basic = 0;
 877         u32 extended = 0;
 878         u32 bits;
 879         int running = 0;
 880
 881         switch (cmd) {
 882         case SNDRV_PCM_TRIGGER_START:
 883         case SNDRV_PCM_TRIGGER_RESUME:
 884                 running = 1;
 885                 break;
 886         case SNDRV_PCM_TRIGGER_STOP:
 887         case SNDRV_PCM_TRIGGER_SUSPEND:
 888         default:
 889                 running = 0;
 890                 break;
 891         }
 892         snd_pcm_group_for_each_entry(s, substream) {
 893                 if (snd_pcm_substream_chip(s) != emu ||
 894                     s->stream != SNDRV_PCM_STREAM_PLAYBACK)
 895                         continue;
 896                 runtime = s->runtime;
 897                 epcm = runtime->private_data;
 898                 channel = epcm->channel_id;
 899                 /* snd_printk("channel=%d\n",channel); */
 900                 epcm->running = running;
 901                 basic |= (0x1 << channel);
 902                 extended |= (0x10 << channel);
 903                 snd_pcm_trigger_done(s, substream);
 904         }
 905         /* snd_printk("basic=0x%x, extended=0x%x\n",basic, extended); */
 906
 907         switch (cmd) {
 908         case SNDRV_PCM_TRIGGER_START:
 909         case SNDRV_PCM_TRIGGER_RESUME:
 910                 bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
 911                 bits |= extended;
 912                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
 913                 bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
 914                 bits |= basic;
 915                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
 916                 break;
 917         case SNDRV_PCM_TRIGGER_STOP:
 918         case SNDRV_PCM_TRIGGER_SUSPEND:
 919                 bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
 920                 bits &= ~basic;
 921                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
 922                 bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
 923                 bits &= ~extended;
 924                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
 925                 break;
 926         default:
 927                 result = -EINVAL;
 928                 break;
 929         }
 930         return result;
 931 }
 932
 933 /* trigger_capture callback */
 934 static int snd_ca0106_pcm_trigger_capture(struct snd_pcm_substream *substream,
 935                                     int cmd)
 936 {
 937         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 938         struct snd_pcm_runtime *runtime = substream->runtime;
 939         struct snd_ca0106_pcm *epcm = runtime->private_data;
 940         int channel = epcm->channel_id;
 941         int result = 0;
 942
 943         switch (cmd) {
 944         case SNDRV_PCM_TRIGGER_START:
 945                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
 946                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
 947                 epcm->running = 1;
 948                 break;
 949         case SNDRV_PCM_TRIGGER_STOP:
 950                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
 951                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
 952                 epcm->running = 0;
 953                 break;
 954         default:
 955                 result = -EINVAL;
 956                 break;
 957         }
 958         return result;
 959 }
 960
 961 /* pointer_playback callback */
 962 static snd_pcm_uframes_t
 963 snd_ca0106_pcm_pointer_playback(struct snd_pcm_substream *substream)
 964 {
 965         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 966         struct snd_pcm_runtime *runtime = substream->runtime;
 967         struct snd_ca0106_pcm *epcm = runtime->private_data;
 968         snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
 969         int channel = epcm->channel_id;
 970
 971         if (!epcm->running)
 972                 return 0;
 973
 974         ptr3 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
 975         ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
 976         ptr4 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
 977         if (ptr3 != ptr4) ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
 978         ptr2 = bytes_to_frames(runtime, ptr1);
 979         ptr2+= (ptr4 >> 3) * runtime->period_size;
 980         ptr=ptr2;
 981         if (ptr >= runtime->buffer_size)
 982                 ptr -= runtime->buffer_size;
 983         //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);
 984
 985         return ptr;
 986 }
 987
 988 /* pointer_capture callback */
 989 static snd_pcm_uframes_t
 990 snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream *substream)
 991 {
 992         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 993         struct snd_pcm_runtime *runtime = substream->runtime;
 994         struct snd_ca0106_pcm *epcm = runtime->private_data;
 995         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
 996         int channel = channel=epcm->channel_id;
 997
 998         if (!epcm->running)
 999                 return 0;
1000
1001         ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
1002         ptr2 = bytes_to_frames(runtime, ptr1);
1003         ptr=ptr2;
1004         if (ptr >= runtime->buffer_size)
1005                 ptr -= runtime->buffer_size;
1006         //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);
1007
1008         return ptr;
1009 }
1010
1011 /* operators */
1012 static struct snd_pcm_ops snd_ca0106_playback_front_ops = {
1013         .open =        snd_ca0106_pcm_open_playback_front,
1014         .close =       snd_ca0106_pcm_close_playback,
1015         .ioctl =       snd_pcm_lib_ioctl,
1016         .hw_params =   snd_ca0106_pcm_hw_params_playback,
1017         .hw_free =     snd_ca0106_pcm_hw_free_playback,
1018         .prepare =     snd_ca0106_pcm_prepare_playback,
1019         .trigger =     snd_ca0106_pcm_trigger_playback,
1020         .pointer =     snd_ca0106_pcm_pointer_playback,
1021 };
1022
1023 static struct snd_pcm_ops snd_ca0106_capture_0_ops = {
1024         .open =        snd_ca0106_pcm_open_0_capture,
1025         .close =       snd_ca0106_pcm_close_capture,
1026         .ioctl =       snd_pcm_lib_ioctl,
1027         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1028         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1029         .prepare =     snd_ca0106_pcm_prepare_capture,
1030         .trigger =     snd_ca0106_pcm_trigger_capture,
1031         .pointer =     snd_ca0106_pcm_pointer_capture,
1032 };
1033
1034 static struct snd_pcm_ops snd_ca0106_capture_1_ops = {
1035         .open =        snd_ca0106_pcm_open_1_capture,
1036         .close =       snd_ca0106_pcm_close_capture,
1037         .ioctl =       snd_pcm_lib_ioctl,
1038         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1039         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1040         .prepare =     snd_ca0106_pcm_prepare_capture,
1041         .trigger =     snd_ca0106_pcm_trigger_capture,
1042         .pointer =     snd_ca0106_pcm_pointer_capture,
1043 };
1044
1045 static struct snd_pcm_ops snd_ca0106_capture_2_ops = {
1046         .open =        snd_ca0106_pcm_open_2_capture,
1047         .close =       snd_ca0106_pcm_close_capture,
1048         .ioctl =       snd_pcm_lib_ioctl,
1049         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1050         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1051         .prepare =     snd_ca0106_pcm_prepare_capture,
1052         .trigger =     snd_ca0106_pcm_trigger_capture,
1053         .pointer =     snd_ca0106_pcm_pointer_capture,
1054 };
1055
1056 static struct snd_pcm_ops snd_ca0106_capture_3_ops = {
1057         .open =        snd_ca0106_pcm_open_3_capture,
1058         .close =       snd_ca0106_pcm_close_capture,
1059         .ioctl =       snd_pcm_lib_ioctl,
1060         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1061         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1062         .prepare =     snd_ca0106_pcm_prepare_capture,
1063         .trigger =     snd_ca0106_pcm_trigger_capture,
1064         .pointer =     snd_ca0106_pcm_pointer_capture,
1065 };
1066
1067 static struct snd_pcm_ops snd_ca0106_playback_center_lfe_ops = {
1068         .open =         snd_ca0106_pcm_open_playback_center_lfe,
1069         .close =        snd_ca0106_pcm_close_playback,
1070         .ioctl =        snd_pcm_lib_ioctl,
1071         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1072         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1073         .prepare =      snd_ca0106_pcm_prepare_playback,
1074         .trigger =      snd_ca0106_pcm_trigger_playback,
1075         .pointer =      snd_ca0106_pcm_pointer_playback,
1076 };
1077
1078 static struct snd_pcm_ops snd_ca0106_playback_unknown_ops = {
1079         .open =         snd_ca0106_pcm_open_playback_unknown,
1080         .close =        snd_ca0106_pcm_close_playback,
1081         .ioctl =        snd_pcm_lib_ioctl,
1082         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1083         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1084         .prepare =      snd_ca0106_pcm_prepare_playback,
1085         .trigger =      snd_ca0106_pcm_trigger_playback,
1086         .pointer =      snd_ca0106_pcm_pointer_playback,
1087 };
1088
1089 static struct snd_pcm_ops snd_ca0106_playback_rear_ops = {
1090         .open =         snd_ca0106_pcm_open_playback_rear,
1091         .close =        snd_ca0106_pcm_close_playback,
1092         .ioctl =        snd_pcm_lib_ioctl,
1093         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1094                 .hw_free =      snd_ca0106_pcm_hw_free_playback,
1095         .prepare =      snd_ca0106_pcm_prepare_playback,
1096         .trigger =      snd_ca0106_pcm_trigger_playback,
1097         .pointer =      snd_ca0106_pcm_pointer_playback,
1098 };
1099
1100
1101 static unsigned short snd_ca0106_ac97_read(struct snd_ac97 *ac97,
1102                                              unsigned short reg)
1103 {
1104         struct snd_ca0106 *emu = ac97->private_data;
1105         unsigned long flags;
1106         unsigned short val;
1107
1108         spin_lock_irqsave(&emu->emu_lock, flags);
1109         outb(reg, emu->port + AC97ADDRESS);
1110         val = inw(emu->port + AC97DATA);
1111         spin_unlock_irqrestore(&emu->emu_lock, flags);
1112         return val;
1113 }
1114
1115 static void snd_ca0106_ac97_write(struct snd_ac97 *ac97,
1116                                     unsigned short reg, unsigned short val)
1117 {
1118         struct snd_ca0106 *emu = ac97->private_data;
1119         unsigned long flags;
1120
1121         spin_lock_irqsave(&emu->emu_lock, flags);
1122         outb(reg, emu->port + AC97ADDRESS);
1123         outw(val, emu->port + AC97DATA);
1124         spin_unlock_irqrestore(&emu->emu_lock, flags);
1125 }
1126
1127 static int snd_ca0106_ac97(struct snd_ca0106 *chip)
1128 {
1129         struct snd_ac97_bus *pbus;
1130         struct snd_ac97_template ac97;
1131         int err;
1132         static struct snd_ac97_bus_ops ops = {
1133                 .write = snd_ca0106_ac97_write,
1134                 .read = snd_ca0106_ac97_read,
1135         };
1136
1137         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
1138                 return err;
1139         pbus->no_vra = 1; /* we don't need VRA */
1140
1141         memset(&ac97, 0, sizeof(ac97));
1142         ac97.private_data = chip;
1143         ac97.scaps = AC97_SCAP_NO_SPDIF;
1144         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1145 }
1146
1147 static void ca0106_stop_chip(struct snd_ca0106 *chip);
1148
1149 static int snd_ca0106_free(struct snd_ca0106 *chip)
1150 {
1151         if (chip->res_port != NULL) {
1152                 /* avoid access to already used hardware */
1153                 ca0106_stop_chip(chip);
1154         }
1155         if (chip->irq >= 0)
1156                 free_irq(chip->irq, chip);
1157         // release the data
1158 #if 1
1159         if (chip->buffer.area)
1160                 snd_dma_free_pages(&chip->buffer);
1161 #endif
1162
1163         // release the i/o port
1164         release_and_free_resource(chip->res_port);
1165
1166         pci_disable_device(chip->pci);
1167         kfree(chip);
1168         return 0;
1169 }
1170
1171 static int snd_ca0106_dev_free(struct snd_device *device)
1172 {
1173         struct snd_ca0106 *chip = device->device_data;
1174         return snd_ca0106_free(chip);
1175 }
1176
1177 static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
1178 {
1179         unsigned int status;
1180
1181         struct snd_ca0106 *chip = dev_id;
1182         int i;
1183         int mask;
1184         unsigned int stat76;
1185         struct snd_ca0106_channel *pchannel;
1186
1187         status = inl(chip->port + IPR);
1188         if (! status)
1189                 return IRQ_NONE;
1190
1191         stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1192         //snd_printk("interrupt status = 0x%08x, stat76=0x%08x\n", status, stat76);
1193         //snd_printk("ptr=0x%08x\n",snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1194         mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1195         for(i = 0; i < 4; i++) {
1196                 pchannel = &(chip->playback_channels[i]);
1197                 if (stat76 & mask) {
1198 /* FIXME: Select the correct substream for period elapsed */
1199                         if(pchannel->use) {
1200                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1201                                 //printk(KERN_INFO "interrupt [%d] used\n", i);
1202                         }
1203                 }
1204                 //printk(KERN_INFO "channel=%p\n",pchannel);
1205                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1206                 mask <<= 1;
1207         }
1208         mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1209         for(i = 0; i < 4; i++) {
1210                 pchannel = &(chip->capture_channels[i]);
1211                 if (stat76 & mask) {
1212 /* FIXME: Select the correct substream for period elapsed */
1213                         if(pchannel->use) {
1214                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1215                                 //printk(KERN_INFO "interrupt [%d] used\n", i);
1216                         }
1217                 }
1218                 //printk(KERN_INFO "channel=%p\n",pchannel);
1219                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1220                 mask <<= 1;
1221         }
1222
1223         snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1224
1225         if (chip->midi.dev_id &&
1226             (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1227                 if (chip->midi.interrupt)
1228                         chip->midi.interrupt(&chip->midi, status);
1229                 else
1230                         chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1231         }
1232
1233         // acknowledge the interrupt if necessary
1234         outl(status, chip->port+IPR);
1235
1236         return IRQ_HANDLED;
1237 }
1238
1239 static int __devinit snd_ca0106_pcm(struct snd_ca0106 *emu, int device)
1240 {
1241         struct snd_pcm *pcm;
1242         struct snd_pcm_substream *substream;
1243         int err;
1244
1245         err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm);
1246         if (err < 0)
1247                 return err;
1248
1249         pcm->private_data = emu;
1250
1251         switch (device) {
1252         case 0:
1253           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1254           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1255           break;
1256         case 1:
1257           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1258           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1259           break;
1260         case 2:
1261           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1262           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1263           break;
1264         case 3:
1265           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1266           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1267           break;
1268         }
1269
1270         pcm->info_flags = 0;
1271         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1272         strcpy(pcm->name, "CA0106");
1273
1274         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
1275             substream;
1276             substream = substream->next) {
1277                 if ((err = snd_pcm_lib_preallocate_pages(substream,
1278                                                          SNDRV_DMA_TYPE_DEV,
1279                                                          snd_dma_pci_data(emu->pci),
1280                                                          64*1024, 64*1024)) < 0) /* FIXME: 32*1024 for sound buffer, between 32and64 for Periods table. */
1281                         return err;
1282         }
1283
1284         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
1285               substream;
1286               substream = substream->next) {
1287                 if ((err = snd_pcm_lib_preallocate_pages(substream,
1288                                                    SNDRV_DMA_TYPE_DEV,
1289                                                    snd_dma_pci_data(emu->pci),
1290                                                    64*1024, 64*1024)) < 0)
1291                         return err;
1292         }
1293
1294         emu->pcm[device] = pcm;
1295
1296         return 0;
1297 }
1298
1299 #define SPI_REG(reg, value)     (((reg) << SPI_REG_SHIFT) | (value))
1300 static unsigned int spi_dac_init[] = {
1301         SPI_REG(SPI_LDA1_REG,   SPI_DA_BIT_0dB), /* 0dB dig. attenuation */
1302         SPI_REG(SPI_RDA1_REG,   SPI_DA_BIT_0dB),
1303         SPI_REG(SPI_PL_REG,     SPI_PL_BIT_L_L | SPI_PL_BIT_R_R | SPI_IZD_BIT),
1304         SPI_REG(SPI_FMT_REG,    SPI_FMT_BIT_I2S | SPI_IWL_BIT_24),
1305         SPI_REG(SPI_LDA2_REG,   SPI_DA_BIT_0dB),
1306         SPI_REG(SPI_RDA2_REG,   SPI_DA_BIT_0dB),
1307         SPI_REG(SPI_LDA3_REG,   SPI_DA_BIT_0dB),
1308         SPI_REG(SPI_RDA3_REG,   SPI_DA_BIT_0dB),
1309         SPI_REG(SPI_MASTDA_REG, SPI_DA_BIT_0dB),
1310         SPI_REG(9,              0x00),
1311         SPI_REG(SPI_MS_REG,     SPI_DACD0_BIT | SPI_DACD1_BIT | SPI_DACD2_BIT),
1312         SPI_REG(12,             0x00),
1313         SPI_REG(SPI_LDA4_REG,   SPI_DA_BIT_0dB),
1314         SPI_REG(SPI_RDA4_REG,   SPI_DA_BIT_0dB | SPI_DA_BIT_UPDATE),
1315         SPI_REG(SPI_DACD4_REG,  0x00),
1316 };
1317
1318 static unsigned int i2c_adc_init[][2] = {
1319         { 0x17, 0x00 }, /* Reset */
1320         { 0x07, 0x00 }, /* Timeout */
1321         { 0x0b, 0x22 },  /* Interface control */
1322         { 0x0c, 0x22 },  /* Master mode control */
1323         { 0x0d, 0x08 },  /* Powerdown control */
1324         { 0x0e, 0xcf },  /* Attenuation Left  0x01 = -103dB, 0xff = 24dB */
1325         { 0x0f, 0xcf },  /* Attenuation Right 0.5dB steps */
1326         { 0x10, 0x7b },  /* ALC Control 1 */
1327         { 0x11, 0x00 },  /* ALC Control 2 */
1328         { 0x12, 0x32 },  /* ALC Control 3 */
1329         { 0x13, 0x00 },  /* Noise gate control */
1330         { 0x14, 0xa6 },  /* Limiter control */
1331         { 0x15, ADC_MUX_LINEIN },  /* ADC Mixer control */
1332 };
1333
1334 static void ca0106_init_chip(struct snd_ca0106 *chip, int resume)
1335 {
1336         int ch;
1337         unsigned int def_bits;
1338
1339         outl(0, chip->port + INTE);
1340
1341         /*
1342          *  Init to 0x02109204 :
1343          *  Clock accuracy    = 0     (1000ppm)
1344          *  Sample Rate       = 2     (48kHz)
1345          *  Audio Channel     = 1     (Left of 2)
1346          *  Source Number     = 0     (Unspecified)
1347          *  Generation Status = 1     (Original for Cat Code 12)
1348          *  Cat Code          = 12    (Digital Signal Mixer)
1349          *  Mode              = 0     (Mode 0)
1350          *  Emphasis          = 0     (None)
1351          *  CP                = 1     (Copyright unasserted)
1352          *  AN                = 0     (Audio data)
1353          *  P                 = 0     (Consumer)
1354          */
1355         def_bits =
1356                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1357                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1358                 SPCS_GENERATIONSTATUS | 0x00001200 |
1359                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT;
1360         if (!resume) {
1361                 chip->spdif_str_bits[0] = chip->spdif_bits[0] = def_bits;
1362                 chip->spdif_str_bits[1] = chip->spdif_bits[1] = def_bits;
1363                 chip->spdif_str_bits[2] = chip->spdif_bits[2] = def_bits;
1364                 chip->spdif_str_bits[3] = chip->spdif_bits[3] = def_bits;
1365         }
1366         /* Only SPCS1 has been tested */
1367         snd_ca0106_ptr_write(chip, SPCS1, 0, chip->spdif_str_bits[1]);
1368         snd_ca0106_ptr_write(chip, SPCS0, 0, chip->spdif_str_bits[0]);
1369         snd_ca0106_ptr_write(chip, SPCS2, 0, chip->spdif_str_bits[2]);
1370         snd_ca0106_ptr_write(chip, SPCS3, 0, chip->spdif_str_bits[3]);
1371
1372         snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1373         snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1374
1375         /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1376         outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
1377         outw(0x8000, chip->port + AC97DATA);
1378 #if 0 /* FIXME: what are these? */
1379         snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1380         snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1381         snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1382         snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1383 #endif
1384
1385         /* OSS drivers set this. */
1386         /* snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); */
1387
1388         /* Analog or Digital output */
1389         snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1390         /* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers.
1391          * Use 0x000f0000 for surround71
1392          */
1393         snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000);
1394
1395         chip->spdif_enable = 0; /* Set digital SPDIF output off */
1396         /*snd_ca0106_ptr_write(chip, 0x45, 0, 0);*/ /* Analogue out */
1397         /*snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00);*/ /* Digital out */
1398
1399         /* goes to 0x40c80000 when doing SPDIF IN/OUT */
1400         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000);
1401         /* (Mute) CAPTURE feedback into PLAYBACK volume.
1402          * Only lower 16 bits matter.
1403          */
1404         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff);
1405         /* SPDIF IN Volume */
1406         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000);
1407         /* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1408         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000);
1409
1410         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1411         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1412         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1413         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1414
1415         for (ch = 0; ch < 4; ch++) {
1416                 /* Only high 16 bits matter */
1417                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030);
1418                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1419 #if 0 /* Mute */
1420                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040);
1421                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040);
1422                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff);
1423                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff);
1424 #endif
1425         }
1426         if (chip->details->i2c_adc == 1) {
1427                 /* Select MIC, Line in, TAD in, AUX in */
1428                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1429                 /* Default to CAPTURE_SOURCE to i2s in */
1430                 if (!resume)
1431                         chip->capture_source = 3;
1432         } else if (chip->details->ac97 == 1) {
1433                 /* Default to AC97 in */
1434                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x444400e4);
1435                 /* Default to CAPTURE_SOURCE to AC97 in */
1436                 if (!resume)
1437                         chip->capture_source = 4;
1438         } else {
1439                 /* Select MIC, Line in, TAD in, AUX in */
1440                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1441                 /* Default to Set CAPTURE_SOURCE to i2s in */
1442                 if (!resume)
1443                         chip->capture_source = 3;
1444         }
1445
1446         if (chip->details->gpio_type == 2) {
1447                 /* The SB0438 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 if (chip->details->gpio_type == 1) {
1455                 /* The SB0410 and SB0413 use GPIO differently. */
1456                 /* FIXME: Still need to find out what the other GPIO bits do.
1457                  * E.g. For digital spdif out.
1458                  */
1459                 outl(0x0, chip->port+GPIO);
1460                 /* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1461                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1462         } else {
1463                 outl(0x0, chip->port+GPIO);
1464                 outl(0x005f03a3, chip->port+GPIO); /* Analog */
1465                 /* outl(0x005f02a2, chip->port+GPIO); */ /* SPDIF */
1466         }
1467         snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1468
1469         /* outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG); */
1470         /* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1471         /* outl(0x00001409, chip->port+HCFG); */
1472         /* outl(0x00000009, chip->port+HCFG); */
1473         /* AC97 2.0, Enable outputs. */
1474         outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG);
1475
1476         if (chip->details->i2c_adc == 1) {
1477                 /* The SB0410 and SB0413 use I2C to control ADC. */
1478                 int size, n;
1479
1480                 size = ARRAY_SIZE(i2c_adc_init);
1481                 /* snd_printk("I2C:array size=0x%x\n", size); */
1482                 for (n = 0; n < size; n++)
1483                         snd_ca0106_i2c_write(chip, i2c_adc_init[n][0],
1484                                              i2c_adc_init[n][1]);
1485                 for (n = 0; n < 4; n++) {
1486                         chip->i2c_capture_volume[n][0] = 0xcf;
1487                         chip->i2c_capture_volume[n][1] = 0xcf;
1488                 }
1489                 chip->i2c_capture_source = 2; /* Line in */
1490                 /* Enable Line-in capture. MIC in currently untested. */
1491                 /* snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); */
1492         }
1493
1494         if (chip->details->spi_dac == 1) {
1495                 /* The SB0570 use SPI to control DAC. */
1496                 int size, n;
1497
1498                 size = ARRAY_SIZE(spi_dac_init);
1499                 for (n = 0; n < size; n++) {
1500                         int reg = spi_dac_init[n] >> SPI_REG_SHIFT;
1501
1502                         snd_ca0106_spi_write(chip, spi_dac_init[n]);
1503                         if (reg < ARRAY_SIZE(chip->spi_dac_reg))
1504                                 chip->spi_dac_reg[reg] = spi_dac_init[n];
1505                 }
1506         }
1507 }
1508
1509 static void ca0106_stop_chip(struct snd_ca0106 *chip)
1510 {
1511         /* disable interrupts */
1512         snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
1513         outl(0, chip->port + INTE);
1514         snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
1515         udelay(1000);
1516         /* disable audio */
1517         /* outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG); */
1518         outl(0, chip->port + HCFG);
1519         /* FIXME: We need to stop and DMA transfers here.
1520          *        But as I am not sure how yet, we cannot from the dma pages.
1521          * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
1522          */
1523 }
1524
1525 static int __devinit snd_ca0106_create(int dev, struct snd_card *card,
1526                                          struct pci_dev *pci,
1527                                          struct snd_ca0106 **rchip)
1528 {
1529         struct snd_ca0106 *chip;
1530         struct snd_ca0106_details *c;
1531         int err;
1532         static struct snd_device_ops ops = {
1533                 .dev_free = snd_ca0106_dev_free,
1534         };
1535
1536         *rchip = NULL;
1537
1538         err = pci_enable_device(pci);
1539         if (err < 0)
1540                 return err;
1541         if (pci_set_dma_mask(pci, DMA_32BIT_MASK) < 0 ||
1542             pci_set_consistent_dma_mask(pci, DMA_32BIT_MASK) < 0) {
1543                 printk(KERN_ERR "error to set 32bit mask DMA\n");
1544                 pci_disable_device(pci);
1545                 return -ENXIO;
1546         }
1547
1548         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1549         if (chip == NULL) {
1550                 pci_disable_device(pci);
1551                 return -ENOMEM;
1552         }
1553
1554         chip->card = card;
1555         chip->pci = pci;
1556         chip->irq = -1;
1557
1558         spin_lock_init(&chip->emu_lock);
1559
1560         chip->port = pci_resource_start(pci, 0);
1561         chip->res_port = request_region(chip->port, 0x20, "snd_ca0106");
1562         if (!chip->res_port) {
1563                 snd_ca0106_free(chip);
1564                 printk(KERN_ERR "cannot allocate the port\n");
1565                 return -EBUSY;
1566         }
1567
1568         if (request_irq(pci->irq, snd_ca0106_interrupt,
1569                         IRQF_SHARED, "snd_ca0106", chip)) {
1570                 snd_ca0106_free(chip);
1571                 printk(KERN_ERR "cannot grab irq\n");
1572                 return -EBUSY;
1573         }
1574         chip->irq = pci->irq;
1575
1576         /* This stores the periods table. */
1577         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1578                                 1024, &chip->buffer) < 0) {
1579                 snd_ca0106_free(chip);
1580                 return -ENOMEM;
1581         }
1582
1583         pci_set_master(pci);
1584         /* read serial */
1585         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1586         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1587         printk(KERN_INFO "snd-ca0106: Model %04x Rev %08x Serial %08x\n",
1588                chip->model, pci->revision, chip->serial);
1589         strcpy(card->driver, "CA0106");
1590         strcpy(card->shortname, "CA0106");
1591
1592         for (c = ca0106_chip_details; c->serial; c++) {
1593                 if (subsystem[dev]) {
1594                         if (c->serial == subsystem[dev])
1595                                 break;
1596                 } else if (c->serial == chip->serial)
1597                         break;
1598         }
1599         chip->details = c;
1600         if (subsystem[dev]) {
1601                 printk(KERN_INFO "snd-ca0106: Sound card name=%s, "
1602                        "subsystem=0x%x. Forced to subsystem=0x%x\n",
1603                        c->name, chip->serial, subsystem[dev]);
1604         }
1605
1606         sprintf(card->longname, "%s at 0x%lx irq %i",
1607                 c->name, chip->port, chip->irq);
1608
1609         ca0106_init_chip(chip, 0);
1610
1611         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1612         if (err < 0) {
1613                 snd_ca0106_free(chip);
1614                 return err;
1615         }
1616         *rchip = chip;
1617         return 0;
1618 }
1619
1620
1621 static void ca0106_midi_interrupt_enable(struct snd_ca_midi *midi, int intr)
1622 {
1623         snd_ca0106_intr_enable((struct snd_ca0106 *)(midi->dev_id), intr);
1624 }
1625
1626 static void ca0106_midi_interrupt_disable(struct snd_ca_midi *midi, int intr)
1627 {
1628         snd_ca0106_intr_disable((struct snd_ca0106 *)(midi->dev_id), intr);
1629 }
1630
1631 static unsigned char ca0106_midi_read(struct snd_ca_midi *midi, int idx)
1632 {
1633         return (unsigned char)snd_ca0106_ptr_read((struct snd_ca0106 *)(midi->dev_id),
1634                                                   midi->port + idx, 0);
1635 }
1636
1637 static void ca0106_midi_write(struct snd_ca_midi *midi, int data, int idx)
1638 {
1639         snd_ca0106_ptr_write((struct snd_ca0106 *)(midi->dev_id), midi->port + idx, 0, data);
1640 }
1641
1642 static struct snd_card *ca0106_dev_id_card(void *dev_id)
1643 {
1644         return ((struct snd_ca0106 *)dev_id)->card;
1645 }
1646
1647 static int ca0106_dev_id_port(void *dev_id)
1648 {
1649         return ((struct snd_ca0106 *)dev_id)->port;
1650 }
1651
1652 static int __devinit snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
1653 {
1654         struct snd_ca_midi *midi;
1655         char *name;
1656         int err;
1657
1658         if (channel == CA0106_MIDI_CHAN_B) {
1659                 name = "CA0106 MPU-401 (UART) B";
1660                 midi =  &chip->midi2;
1661                 midi->tx_enable = INTE_MIDI_TX_B;
1662                 midi->rx_enable = INTE_MIDI_RX_B;
1663                 midi->ipr_tx = IPR_MIDI_TX_B;
1664                 midi->ipr_rx = IPR_MIDI_RX_B;
1665                 midi->port = MIDI_UART_B_DATA;
1666         } else {
1667                 name = "CA0106 MPU-401 (UART)";
1668                 midi =  &chip->midi;
1669                 midi->tx_enable = INTE_MIDI_TX_A;
1670                 midi->rx_enable = INTE_MIDI_TX_B;
1671                 midi->ipr_tx = IPR_MIDI_TX_A;
1672                 midi->ipr_rx = IPR_MIDI_RX_A;
1673                 midi->port = MIDI_UART_A_DATA;
1674         }
1675
1676         midi->reset = CA0106_MPU401_RESET;
1677         midi->enter_uart = CA0106_MPU401_ENTER_UART;
1678         midi->ack = CA0106_MPU401_ACK;
1679
1680         midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1681         midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1682
1683         midi->channel = channel;
1684
1685         midi->interrupt_enable = ca0106_midi_interrupt_enable;
1686         midi->interrupt_disable = ca0106_midi_interrupt_disable;
1687
1688         midi->read = ca0106_midi_read;
1689         midi->write = ca0106_midi_write;
1690
1691         midi->get_dev_id_card = ca0106_dev_id_card;
1692         midi->get_dev_id_port = ca0106_dev_id_port;
1693
1694         midi->dev_id = chip;
1695
1696         if ((err = ca_midi_init(chip, midi, 0, name)) < 0)
1697                 return err;
1698
1699         return 0;
1700 }
1701
1702
1703 static int __devinit snd_ca0106_probe(struct pci_dev *pci,
1704                                         const struct pci_device_id *pci_id)
1705 {
1706         static int dev;
1707         struct snd_card *card;
1708         struct snd_ca0106 *chip;
1709         int i, err;
1710
1711         if (dev >= SNDRV_CARDS)
1712                 return -ENODEV;
1713         if (!enable[dev]) {
1714                 dev++;
1715                 return -ENOENT;
1716         }
1717
1718         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
1719         if (card == NULL)
1720                 return -ENOMEM;
1721
1722         err = snd_ca0106_create(dev, card, pci, &chip);
1723         if (err < 0)
1724                 goto error;
1725         card->private_data = chip;
1726
1727         for (i = 0; i < 4; i++) {
1728                 err = snd_ca0106_pcm(chip, i);
1729                 if (err < 0)
1730                         goto error;
1731         }
1732
1733         if (chip->details->ac97 == 1) {
1734                 /* The SB0410 and SB0413 do not have an AC97 chip. */
1735                 err = snd_ca0106_ac97(chip);
1736                 if (err < 0)
1737                         goto error;
1738         }
1739         err = snd_ca0106_mixer(chip);
1740         if (err < 0)
1741                 goto error;
1742
1743         snd_printdd("ca0106: probe for MIDI channel A ...");
1744         err = snd_ca0106_midi(chip, CA0106_MIDI_CHAN_A);
1745         if (err < 0)
1746                 goto error;
1747         snd_printdd(" done.\n");
1748
1749 #ifdef CONFIG_PROC_FS
1750         snd_ca0106_proc_init(chip);
1751 #endif
1752
1753         snd_card_set_dev(card, &pci->dev);
1754
1755         err = snd_card_register(card);
1756         if (err < 0)
1757                 goto error;
1758
1759         pci_set_drvdata(pci, card);
1760         dev++;
1761         return 0;
1762
1763  error:
1764         snd_card_free(card);
1765         return err;
1766 }
1767
1768 static void __devexit snd_ca0106_remove(struct pci_dev *pci)
1769 {
1770         snd_card_free(pci_get_drvdata(pci));
1771         pci_set_drvdata(pci, NULL);
1772 }
1773
1774 #ifdef CONFIG_PM
1775 static int snd_ca0106_suspend(struct pci_dev *pci, pm_message_t state)
1776 {
1777         struct snd_card *card = pci_get_drvdata(pci);
1778         struct snd_ca0106 *chip = card->private_data;
1779         int i;
1780
1781         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1782         for (i = 0; i < 4; i++)
1783                 snd_pcm_suspend_all(chip->pcm[i]);
1784         if (chip->details->ac97)
1785                 snd_ac97_suspend(chip->ac97);
1786         snd_ca0106_mixer_suspend(chip);
1787
1788         ca0106_stop_chip(chip);
1789
1790         pci_disable_device(pci);
1791         pci_save_state(pci);
1792         pci_set_power_state(pci, pci_choose_state(pci, state));
1793         return 0;
1794 }
1795
1796 static int snd_ca0106_resume(struct pci_dev *pci)
1797 {
1798         struct snd_card *card = pci_get_drvdata(pci);
1799         struct snd_ca0106 *chip = card->private_data;
1800         int i;
1801
1802         pci_set_power_state(pci, PCI_D0);
1803         pci_restore_state(pci);
1804
1805         if (pci_enable_device(pci) < 0) {
1806                 snd_card_disconnect(card);
1807                 return -EIO;
1808         }
1809
1810         pci_set_master(pci);
1811
1812         ca0106_init_chip(chip, 1);
1813
1814         if (chip->details->ac97)
1815                 snd_ac97_resume(chip->ac97);
1816         snd_ca0106_mixer_resume(chip);
1817         if (chip->details->spi_dac) {
1818                 for (i = 0; i < ARRAY_SIZE(chip->spi_dac_reg); i++)
1819                         snd_ca0106_spi_write(chip, chip->spi_dac_reg[i]);
1820         }
1821
1822         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1823         return 0;
1824 }
1825 #endif
1826
1827 // PCI IDs
1828 static struct pci_device_id snd_ca0106_ids[] = {
1829         { 0x1102, 0x0007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },    /* Audigy LS or Live 24bit */
1830         { 0, }
1831 };
1832 MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1833
1834 // pci_driver definition
1835 static struct pci_driver driver = {
1836         .name = "CA0106",
1837         .id_table = snd_ca0106_ids,
1838         .probe = snd_ca0106_probe,
1839         .remove = __devexit_p(snd_ca0106_remove),
1840 #ifdef CONFIG_PM
1841         .suspend = snd_ca0106_suspend,
1842         .resume = snd_ca0106_resume,
1843 #endif
1844 };
1845
1846 // initialization of the module
1847 static int __init alsa_card_ca0106_init(void)
1848 {
1849         return pci_register_driver(&driver);
1850 }
1851
1852 // clean up the module
1853 static void __exit alsa_card_ca0106_exit(void)
1854 {
1855         pci_unregister_driver(&driver);
1856 }
1857
1858 module_init(alsa_card_ca0106_init)
1859 module_exit(alsa_card_ca0106_exit)