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 initially 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/module.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 = 0x4021 } ,
 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 = 0x4021 } ,
 242         /* Sound Blaster 5.1vx
 243          * Tested: Playback on front, rear, center/lfe speakers
 244          * Not-Tested: Capture
 245          */
 246         { .serial = 0x10041102,
 247           .name   = "Sound Blaster 5.1vx [SB1070]",
 248           .gpio_type = 1,
 249           .i2c_adc = 0,
 250           .spi_dac = 0x0124
 251          } ,
 252          /* MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97 */
 253          /* SB0438
 254           * CTRL:CA0106-DAT
 255           * ADC: WM8775SEDS
 256           * DAC: CS4382-KQZ
 257           */
 258          { .serial = 0x10091462,
 259            .name   = "MSI K8N Diamond MB [SB0438]",
 260            .gpio_type = 2,
 261            .i2c_adc = 1 } ,
 262          /* MSI K8N Diamond PLUS MB */
 263          { .serial = 0x10091102,
 264            .name   = "MSI K8N Diamond MB",
 265            .gpio_type = 2,
 266            .i2c_adc = 1,
 267            .spi_dac = 0x4021 } ,
 268         /* Giga-byte GA-G1975X mobo
 269          * Novell bnc#395807
 270          */
 271         /* FIXME: the GPIO and I2C setting aren't tested well */
 272         { .serial = 0x1458a006,
 273           .name = "Giga-byte GA-G1975X",
 274           .gpio_type = 1,
 275           .i2c_adc = 1 },
 276          /* Shuttle XPC SD31P which has an onboard Creative Labs
 277           * Sound Blaster Live! 24-bit EAX
 278           * high-definition 7.1 audio processor".
 279           * Added using info from andrewvegan in alsa bug #1298
 280           */
 281          { .serial = 0x30381297,
 282            .name   = "Shuttle XPC SD31P [SD31P]",
 283            .gpio_type = 1,
 284            .i2c_adc = 1 } ,
 285         /* Shuttle XPC SD11G5 which has an onboard Creative Labs
 286          * Sound Blaster Live! 24-bit EAX
 287          * high-definition 7.1 audio processor".
 288          * Fixes ALSA bug#1600
 289          */
 290         { .serial = 0x30411297,
 291           .name = "Shuttle XPC SD11G5 [SD11G5]",
 292           .gpio_type = 1,
 293           .i2c_adc = 1 } ,
 294          { .serial = 0,
 295            .name   = "AudigyLS [Unknown]" }
 296 };
 297
 298 /* hardware definition */
 299 static struct snd_pcm_hardware snd_ca0106_playback_hw = {
 300         .info =                 SNDRV_PCM_INFO_MMAP |
 301                                 SNDRV_PCM_INFO_INTERLEAVED |
 302                                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 303                                 SNDRV_PCM_INFO_MMAP_VALID |
 304                                 SNDRV_PCM_INFO_SYNC_START,
 305         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
 306         .rates =                (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |
 307                                  SNDRV_PCM_RATE_192000),
 308         .rate_min =             48000,
 309         .rate_max =             192000,
 310         .channels_min =         2,  //1,
 311         .channels_max =         2,  //6,
 312         .buffer_bytes_max =     ((65536 - 64) * 8),
 313         .period_bytes_min =     64,
 314         .period_bytes_max =     (65536 - 64),
 315         .periods_min =          2,
 316         .periods_max =          8,
 317         .fifo_size =            0,
 318 };
 319
 320 static struct snd_pcm_hardware snd_ca0106_capture_hw = {
 321         .info =                 (SNDRV_PCM_INFO_MMAP |
 322                                  SNDRV_PCM_INFO_INTERLEAVED |
 323                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 324                                  SNDRV_PCM_INFO_MMAP_VALID),
 325         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
 326 #if 0 /* FIXME: looks like 44.1kHz capture causes noisy output on 48kHz */
 327         .rates =                (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
 328                                  SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
 329         .rate_min =             44100,
 330 #else
 331         .rates =                (SNDRV_PCM_RATE_48000 |
 332                                  SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
 333         .rate_min =             48000,
 334 #endif /* FIXME */
 335         .rate_max =             192000,
 336         .channels_min =         2,
 337         .channels_max =         2,
 338         .buffer_bytes_max =     65536 - 128,
 339         .period_bytes_min =     64,
 340         .period_bytes_max =     32768 - 64,
 341         .periods_min =          2,
 342         .periods_max =          2,
 343         .fifo_size =            0,
 344 };
 345
 346 unsigned int snd_ca0106_ptr_read(struct snd_ca0106 * emu,
 347                                           unsigned int reg,
 348                                           unsigned int chn)
 349 {
 350         unsigned long flags;
 351         unsigned int regptr, val;
 352
 353         regptr = (reg << 16) | chn;
 354
 355         spin_lock_irqsave(&emu->emu_lock, flags);
 356         outl(regptr, emu->port + PTR);
 357         val = inl(emu->port + DATA);
 358         spin_unlock_irqrestore(&emu->emu_lock, flags);
 359         return val;
 360 }
 361
 362 void snd_ca0106_ptr_write(struct snd_ca0106 *emu,
 363                                    unsigned int reg,
 364                                    unsigned int chn,
 365                                    unsigned int data)
 366 {
 367         unsigned int regptr;
 368         unsigned long flags;
 369
 370         regptr = (reg << 16) | chn;
 371
 372         spin_lock_irqsave(&emu->emu_lock, flags);
 373         outl(regptr, emu->port + PTR);
 374         outl(data, emu->port + DATA);
 375         spin_unlock_irqrestore(&emu->emu_lock, flags);
 376 }
 377
 378 int snd_ca0106_spi_write(struct snd_ca0106 * emu,
 379                                    unsigned int data)
 380 {
 381         unsigned int reset, set;
 382         unsigned int reg, tmp;
 383         int n, result;
 384         reg = SPI;
 385         if (data > 0xffff) /* Only 16bit values allowed */
 386                 return 1;
 387         tmp = snd_ca0106_ptr_read(emu, reg, 0);
 388         reset = (tmp & ~0x3ffff) | 0x20000; /* Set xxx20000 */
 389         set = reset | 0x10000; /* Set xxx1xxxx */
 390         snd_ca0106_ptr_write(emu, reg, 0, reset | data);
 391         tmp = snd_ca0106_ptr_read(emu, reg, 0); /* write post */
 392         snd_ca0106_ptr_write(emu, reg, 0, set | data);
 393         result = 1;
 394         /* Wait for status bit to return to 0 */
 395         for (n = 0; n < 100; n++) {
 396                 udelay(10);
 397                 tmp = snd_ca0106_ptr_read(emu, reg, 0);
 398                 if (!(tmp & 0x10000)) {
 399                         result = 0;
 400                         break;
 401                 }
 402         }
 403         if (result) /* Timed out */
 404                 return 1;
 405         snd_ca0106_ptr_write(emu, reg, 0, reset | data);
 406         tmp = snd_ca0106_ptr_read(emu, reg, 0); /* Write post */
 407         return 0;
 408 }
 409
 410 /* The ADC does not support i2c read, so only write is implemented */
 411 int snd_ca0106_i2c_write(struct snd_ca0106 *emu,
 412                                 u32 reg,
 413                                 u32 value)
 414 {
 415         u32 tmp;
 416         int timeout = 0;
 417         int status;
 418         int retry;
 419         if ((reg > 0x7f) || (value > 0x1ff)) {
 420                 snd_printk(KERN_ERR "i2c_write: invalid values.\n");
 421                 return -EINVAL;
 422         }
 423
 424         tmp = reg << 25 | value << 16;
 425         /*
 426         snd_printk(KERN_DEBUG "I2C-write:reg=0x%x, value=0x%x\n", reg, value);
 427         */
 428         /* Not sure what this I2C channel controls. */
 429         /* snd_ca0106_ptr_write(emu, I2C_D0, 0, tmp); */
 430
 431         /* This controls the I2C connected to the WM8775 ADC Codec */
 432         snd_ca0106_ptr_write(emu, I2C_D1, 0, tmp);
 433
 434         for (retry = 0; retry < 10; retry++) {
 435                 /* Send the data to i2c */
 436                 //tmp = snd_ca0106_ptr_read(emu, I2C_A, 0);
 437                 //tmp = tmp & ~(I2C_A_ADC_READ|I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD_MASK);
 438                 tmp = 0;
 439                 tmp = tmp | (I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD);
 440                 snd_ca0106_ptr_write(emu, I2C_A, 0, tmp);
 441
 442                 /* Wait till the transaction ends */
 443                 while (1) {
 444                         status = snd_ca0106_ptr_read(emu, I2C_A, 0);
 445                         /*snd_printk(KERN_DEBUG "I2C:status=0x%x\n", status);*/
 446                         timeout++;
 447                         if ((status & I2C_A_ADC_START) == 0)
 448                                 break;
 449
 450                         if (timeout > 1000)
 451                                 break;
 452                 }
 453                 //Read back and see if the transaction is successful
 454                 if ((status & I2C_A_ADC_ABORT) == 0)
 455                         break;
 456         }
 457
 458         if (retry == 10) {
 459                 snd_printk(KERN_ERR "Writing to ADC failed!\n");
 460                 return -EINVAL;
 461         }
 462
 463         return 0;
 464 }
 465
 466
 467 static void snd_ca0106_intr_enable(struct snd_ca0106 *emu, unsigned int intrenb)
 468 {
 469         unsigned long flags;
 470         unsigned int intr_enable;
 471
 472         spin_lock_irqsave(&emu->emu_lock, flags);
 473         intr_enable = inl(emu->port + INTE) | intrenb;
 474         outl(intr_enable, emu->port + INTE);
 475         spin_unlock_irqrestore(&emu->emu_lock, flags);
 476 }
 477
 478 static void snd_ca0106_intr_disable(struct snd_ca0106 *emu, unsigned int intrenb)
 479 {
 480         unsigned long flags;
 481         unsigned int intr_enable;
 482
 483         spin_lock_irqsave(&emu->emu_lock, flags);
 484         intr_enable = inl(emu->port + INTE) & ~intrenb;
 485         outl(intr_enable, emu->port + INTE);
 486         spin_unlock_irqrestore(&emu->emu_lock, flags);
 487 }
 488
 489
 490 static void snd_ca0106_pcm_free_substream(struct snd_pcm_runtime *runtime)
 491 {
 492         kfree(runtime->private_data);
 493 }
 494
 495 static const int spi_dacd_reg[] = {
 496         SPI_DACD0_REG,
 497         SPI_DACD1_REG,
 498         SPI_DACD2_REG,
 499         0,
 500         SPI_DACD4_REG,
 501 };
 502 static const int spi_dacd_bit[] = {
 503         SPI_DACD0_BIT,
 504         SPI_DACD1_BIT,
 505         SPI_DACD2_BIT,
 506         0,
 507         SPI_DACD4_BIT,
 508 };
 509
 510 static void restore_spdif_bits(struct snd_ca0106 *chip, int idx)
 511 {
 512         if (chip->spdif_str_bits[idx] != chip->spdif_bits[idx]) {
 513                 chip->spdif_str_bits[idx] = chip->spdif_bits[idx];
 514                 snd_ca0106_ptr_write(chip, SPCS0 + idx, 0,
 515                                      chip->spdif_str_bits[idx]);
 516         }
 517 }
 518
 519 static int snd_ca0106_channel_dac(struct snd_ca0106_details *details,
 520                                   int channel_id)
 521 {
 522         switch (channel_id) {
 523         case PCM_FRONT_CHANNEL:
 524                 return (details->spi_dac & 0xf000) >> (4 * 3);
 525         case PCM_REAR_CHANNEL:
 526                 return (details->spi_dac & 0x0f00) >> (4 * 2);
 527         case PCM_CENTER_LFE_CHANNEL:
 528                 return (details->spi_dac & 0x00f0) >> (4 * 1);
 529         case PCM_UNKNOWN_CHANNEL:
 530                 return (details->spi_dac & 0x000f) >> (4 * 0);
 531         default:
 532                 snd_printk(KERN_DEBUG "ca0106: unknown channel_id %d\n",
 533                            channel_id);
 534         }
 535         return 0;
 536 }
 537
 538 static int snd_ca0106_pcm_power_dac(struct snd_ca0106 *chip, int channel_id,
 539                                     int power)
 540 {
 541         if (chip->details->spi_dac) {
 542                 const int dac = snd_ca0106_channel_dac(chip->details,
 543                                                        channel_id);
 544                 const int reg = spi_dacd_reg[dac];
 545                 const int bit = spi_dacd_bit[dac];
 546
 547                 if (power)
 548                         /* Power up */
 549                         chip->spi_dac_reg[reg] &= ~bit;
 550                 else
 551                         /* Power down */
 552                         chip->spi_dac_reg[reg] |= bit;
 553                 return snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
 554         }
 555         return 0;
 556 }
 557
 558 /* open_playback callback */
 559 static int snd_ca0106_pcm_open_playback_channel(struct snd_pcm_substream *substream,
 560                                                 int channel_id)
 561 {
 562         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 563         struct snd_ca0106_channel *channel = &(chip->playback_channels[channel_id]);
 564         struct snd_ca0106_pcm *epcm;
 565         struct snd_pcm_runtime *runtime = substream->runtime;
 566         int err;
 567
 568         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 569
 570         if (epcm == NULL)
 571                 return -ENOMEM;
 572         epcm->emu = chip;
 573         epcm->substream = substream;
 574         epcm->channel_id=channel_id;
 575
 576         runtime->private_data = epcm;
 577         runtime->private_free = snd_ca0106_pcm_free_substream;
 578
 579         runtime->hw = snd_ca0106_playback_hw;
 580
 581         channel->emu = chip;
 582         channel->number = channel_id;
 583
 584         channel->use = 1;
 585         /*
 586         printk(KERN_DEBUG "open:channel_id=%d, chip=%p, channel=%p\n",
 587                channel_id, chip, channel);
 588         */
 589         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 590         channel->epcm = epcm;
 591         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 592                 return err;
 593         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 594                 return err;
 595         snd_pcm_set_sync(substream);
 596
 597         /* Front channel dac should already be on */
 598         if (channel_id != PCM_FRONT_CHANNEL) {
 599                 err = snd_ca0106_pcm_power_dac(chip, channel_id, 1);
 600                 if (err < 0)
 601                         return err;
 602         }
 603
 604         restore_spdif_bits(chip, channel_id);
 605
 606         return 0;
 607 }
 608
 609 /* close callback */
 610 static int snd_ca0106_pcm_close_playback(struct snd_pcm_substream *substream)
 611 {
 612         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 613         struct snd_pcm_runtime *runtime = substream->runtime;
 614         struct snd_ca0106_pcm *epcm = runtime->private_data;
 615         chip->playback_channels[epcm->channel_id].use = 0;
 616
 617         restore_spdif_bits(chip, epcm->channel_id);
 618
 619         /* Front channel dac should stay on */
 620         if (epcm->channel_id != PCM_FRONT_CHANNEL) {
 621                 int err;
 622                 err = snd_ca0106_pcm_power_dac(chip, epcm->channel_id, 0);
 623                 if (err < 0)
 624                         return err;
 625         }
 626
 627         /* FIXME: maybe zero others */
 628         return 0;
 629 }
 630
 631 static int snd_ca0106_pcm_open_playback_front(struct snd_pcm_substream *substream)
 632 {
 633         return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
 634 }
 635
 636 static int snd_ca0106_pcm_open_playback_center_lfe(struct snd_pcm_substream *substream)
 637 {
 638         return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
 639 }
 640
 641 static int snd_ca0106_pcm_open_playback_unknown(struct snd_pcm_substream *substream)
 642 {
 643         return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
 644 }
 645
 646 static int snd_ca0106_pcm_open_playback_rear(struct snd_pcm_substream *substream)
 647 {
 648         return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
 649 }
 650
 651 /* open_capture callback */
 652 static int snd_ca0106_pcm_open_capture_channel(struct snd_pcm_substream *substream,
 653                                                int channel_id)
 654 {
 655         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 656         struct snd_ca0106_channel *channel = &(chip->capture_channels[channel_id]);
 657         struct snd_ca0106_pcm *epcm;
 658         struct snd_pcm_runtime *runtime = substream->runtime;
 659         int err;
 660
 661         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 662         if (epcm == NULL) {
 663                 snd_printk(KERN_ERR "open_capture_channel: failed epcm alloc\n");
 664                 return -ENOMEM;
 665         }
 666         epcm->emu = chip;
 667         epcm->substream = substream;
 668         epcm->channel_id=channel_id;
 669
 670         runtime->private_data = epcm;
 671         runtime->private_free = snd_ca0106_pcm_free_substream;
 672
 673         runtime->hw = snd_ca0106_capture_hw;
 674
 675         channel->emu = chip;
 676         channel->number = channel_id;
 677
 678         channel->use = 1;
 679         /*
 680         printk(KERN_DEBUG "open:channel_id=%d, chip=%p, channel=%p\n",
 681                channel_id, chip, channel);
 682         */
 683         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 684         channel->epcm = epcm;
 685         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 686                 return err;
 687         //snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
 688         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 689                 return err;
 690         return 0;
 691 }
 692
 693 /* close callback */
 694 static int snd_ca0106_pcm_close_capture(struct snd_pcm_substream *substream)
 695 {
 696         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 697         struct snd_pcm_runtime *runtime = substream->runtime;
 698         struct snd_ca0106_pcm *epcm = runtime->private_data;
 699         chip->capture_channels[epcm->channel_id].use = 0;
 700         /* FIXME: maybe zero others */
 701         return 0;
 702 }
 703
 704 static int snd_ca0106_pcm_open_0_capture(struct snd_pcm_substream *substream)
 705 {
 706         return snd_ca0106_pcm_open_capture_channel(substream, 0);
 707 }
 708
 709 static int snd_ca0106_pcm_open_1_capture(struct snd_pcm_substream *substream)
 710 {
 711         return snd_ca0106_pcm_open_capture_channel(substream, 1);
 712 }
 713
 714 static int snd_ca0106_pcm_open_2_capture(struct snd_pcm_substream *substream)
 715 {
 716         return snd_ca0106_pcm_open_capture_channel(substream, 2);
 717 }
 718
 719 static int snd_ca0106_pcm_open_3_capture(struct snd_pcm_substream *substream)
 720 {
 721         return snd_ca0106_pcm_open_capture_channel(substream, 3);
 722 }
 723
 724 /* hw_params callback */
 725 static int snd_ca0106_pcm_hw_params_playback(struct snd_pcm_substream *substream,
 726                                       struct snd_pcm_hw_params *hw_params)
 727 {
 728         return snd_pcm_lib_malloc_pages(substream,
 729                                         params_buffer_bytes(hw_params));
 730 }
 731
 732 /* hw_free callback */
 733 static int snd_ca0106_pcm_hw_free_playback(struct snd_pcm_substream *substream)
 734 {
 735         return snd_pcm_lib_free_pages(substream);
 736 }
 737
 738 /* hw_params callback */
 739 static int snd_ca0106_pcm_hw_params_capture(struct snd_pcm_substream *substream,
 740                                       struct snd_pcm_hw_params *hw_params)
 741 {
 742         return snd_pcm_lib_malloc_pages(substream,
 743                                         params_buffer_bytes(hw_params));
 744 }
 745
 746 /* hw_free callback */
 747 static int snd_ca0106_pcm_hw_free_capture(struct snd_pcm_substream *substream)
 748 {
 749         return snd_pcm_lib_free_pages(substream);
 750 }
 751
 752 /* prepare playback callback */
 753 static int snd_ca0106_pcm_prepare_playback(struct snd_pcm_substream *substream)
 754 {
 755         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 756         struct snd_pcm_runtime *runtime = substream->runtime;
 757         struct snd_ca0106_pcm *epcm = runtime->private_data;
 758         int channel = epcm->channel_id;
 759         u32 *table_base = (u32 *)(emu->buffer.area+(8*16*channel));
 760         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
 761         u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
 762         u32 hcfg_set = 0x00000000;
 763         u32 hcfg;
 764         u32 reg40_mask = 0x30000 << (channel<<1);
 765         u32 reg40_set = 0;
 766         u32 reg40;
 767         /* FIXME: Depending on mixer selection of SPDIF out or not, select the spdif rate or the DAC rate. */
 768         u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
 769         u32 reg71_set = 0;
 770         u32 reg71;
 771         int i;
 772
 773 #if 0 /* debug */
 774         snd_printk(KERN_DEBUG
 775                    "prepare:channel_number=%d, rate=%d, format=0x%x, "
 776                    "channels=%d, buffer_size=%ld, period_size=%ld, "
 777                    "periods=%u, frames_to_bytes=%d\n",
 778                    channel, runtime->rate, runtime->format,
 779                    runtime->channels, runtime->buffer_size,
 780                    runtime->period_size, runtime->periods,
 781                    frames_to_bytes(runtime, 1));
 782         snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, table_base=%p\n",
 783                    runtime->dma_addr, runtime->dma_area, table_base);
 784         snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
 785                    emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 786 #endif /* debug */
 787         /* Rate can be set per channel. */
 788         /* reg40 control host to fifo */
 789         /* reg71 controls DAC rate. */
 790         switch (runtime->rate) {
 791         case 44100:
 792                 reg40_set = 0x10000 << (channel<<1);
 793                 reg71_set = 0x01010000;
 794                 break;
 795         case 48000:
 796                 reg40_set = 0;
 797                 reg71_set = 0;
 798                 break;
 799         case 96000:
 800                 reg40_set = 0x20000 << (channel<<1);
 801                 reg71_set = 0x02020000;
 802                 break;
 803         case 192000:
 804                 reg40_set = 0x30000 << (channel<<1);
 805                 reg71_set = 0x03030000;
 806                 break;
 807         default:
 808                 reg40_set = 0;
 809                 reg71_set = 0;
 810                 break;
 811         }
 812         /* Format is a global setting */
 813         /* FIXME: Only let the first channel accessed set this. */
 814         switch (runtime->format) {
 815         case SNDRV_PCM_FORMAT_S16_LE:
 816                 hcfg_set = 0;
 817                 break;
 818         case SNDRV_PCM_FORMAT_S32_LE:
 819                 hcfg_set = HCFG_PLAYBACK_S32_LE;
 820                 break;
 821         default:
 822                 hcfg_set = 0;
 823                 break;
 824         }
 825         hcfg = inl(emu->port + HCFG) ;
 826         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 827         outl(hcfg, emu->port + HCFG);
 828         reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
 829         reg40 = (reg40 & ~reg40_mask) | reg40_set;
 830         snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
 831         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 832         reg71 = (reg71 & ~reg71_mask) | reg71_set;
 833         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 834
 835         /* FIXME: Check emu->buffer.size before actually writing to it. */
 836         for(i=0; i < runtime->periods; i++) {
 837                 table_base[i*2] = runtime->dma_addr + (i * period_size_bytes);
 838                 table_base[i*2+1] = period_size_bytes << 16;
 839         }
 840
 841         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
 842         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
 843         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
 844         snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
 845         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
 846         /* FIXME  test what 0 bytes does. */
 847         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
 848         snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
 849         snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
 850         snd_ca0106_ptr_write(emu, 0x08, channel, 0);
 851         snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
 852 #if 0
 853         snd_ca0106_ptr_write(emu, SPCS0, 0,
 854                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
 855                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
 856                                SPCS_GENERATIONSTATUS | 0x00001200 |
 857                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
 858 #endif
 859
 860         return 0;
 861 }
 862
 863 /* prepare capture callback */
 864 static int snd_ca0106_pcm_prepare_capture(struct snd_pcm_substream *substream)
 865 {
 866         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 867         struct snd_pcm_runtime *runtime = substream->runtime;
 868         struct snd_ca0106_pcm *epcm = runtime->private_data;
 869         int channel = epcm->channel_id;
 870         u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
 871         u32 hcfg_set = 0x00000000;
 872         u32 hcfg;
 873         u32 over_sampling=0x2;
 874         u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
 875         u32 reg71_set = 0;
 876         u32 reg71;
 877
 878 #if 0 /* debug */
 879         snd_printk(KERN_DEBUG
 880                    "prepare:channel_number=%d, rate=%d, format=0x%x, "
 881                    "channels=%d, buffer_size=%ld, period_size=%ld, "
 882                    "periods=%u, frames_to_bytes=%d\n",
 883                    channel, runtime->rate, runtime->format,
 884                    runtime->channels, runtime->buffer_size,
 885                    runtime->period_size, runtime->periods,
 886                    frames_to_bytes(runtime, 1));
 887         snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, table_base=%p\n",
 888                    runtime->dma_addr, runtime->dma_area, table_base);
 889         snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
 890                    emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 891 #endif /* debug */
 892         /* reg71 controls ADC rate. */
 893         switch (runtime->rate) {
 894         case 44100:
 895                 reg71_set = 0x00004000;
 896                 break;
 897         case 48000:
 898                 reg71_set = 0;
 899                 break;
 900         case 96000:
 901                 reg71_set = 0x00008000;
 902                 over_sampling=0xa;
 903                 break;
 904         case 192000:
 905                 reg71_set = 0x0000c000;
 906                 over_sampling=0xa;
 907                 break;
 908         default:
 909                 reg71_set = 0;
 910                 break;
 911         }
 912         /* Format is a global setting */
 913         /* FIXME: Only let the first channel accessed set this. */
 914         switch (runtime->format) {
 915         case SNDRV_PCM_FORMAT_S16_LE:
 916                 hcfg_set = 0;
 917                 break;
 918         case SNDRV_PCM_FORMAT_S32_LE:
 919                 hcfg_set = HCFG_CAPTURE_S32_LE;
 920                 break;
 921         default:
 922                 hcfg_set = 0;
 923                 break;
 924         }
 925         hcfg = inl(emu->port + HCFG) ;
 926         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 927         outl(hcfg, emu->port + HCFG);
 928         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 929         reg71 = (reg71 & ~reg71_mask) | reg71_set;
 930         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 931         if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
 932                 snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
 933         }
 934
 935
 936         /*
 937         printk(KERN_DEBUG
 938                "prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, "
 939                "buffer_size=%ld, period_size=%ld, frames_to_bytes=%d\n",
 940                channel, runtime->rate, runtime->format, runtime->channels,
 941                runtime->buffer_size, runtime->period_size,
 942                frames_to_bytes(runtime, 1));
 943         */
 944         snd_ca0106_ptr_write(emu, 0x13, channel, 0);
 945         snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
 946         snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
 947         snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
 948
 949         return 0;
 950 }
 951
 952 /* trigger_playback callback */
 953 static int snd_ca0106_pcm_trigger_playback(struct snd_pcm_substream *substream,
 954                                     int cmd)
 955 {
 956         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 957         struct snd_pcm_runtime *runtime;
 958         struct snd_ca0106_pcm *epcm;
 959         int channel;
 960         int result = 0;
 961         struct snd_pcm_substream *s;
 962         u32 basic = 0;
 963         u32 extended = 0;
 964         u32 bits;
 965         int running = 0;
 966
 967         switch (cmd) {
 968         case SNDRV_PCM_TRIGGER_START:
 969         case SNDRV_PCM_TRIGGER_RESUME:
 970                 running = 1;
 971                 break;
 972         case SNDRV_PCM_TRIGGER_STOP:
 973         case SNDRV_PCM_TRIGGER_SUSPEND:
 974         default:
 975                 running = 0;
 976                 break;
 977         }
 978         snd_pcm_group_for_each_entry(s, substream) {
 979                 if (snd_pcm_substream_chip(s) != emu ||
 980                     s->stream != SNDRV_PCM_STREAM_PLAYBACK)
 981                         continue;
 982                 runtime = s->runtime;
 983                 epcm = runtime->private_data;
 984                 channel = epcm->channel_id;
 985                 /* snd_printk(KERN_DEBUG "channel=%d\n", channel); */
 986                 epcm->running = running;
 987                 basic |= (0x1 << channel);
 988                 extended |= (0x10 << channel);
 989                 snd_pcm_trigger_done(s, substream);
 990         }
 991         /* snd_printk(KERN_DEBUG "basic=0x%x, extended=0x%x\n",basic, extended); */
 992
 993         switch (cmd) {
 994         case SNDRV_PCM_TRIGGER_START:
 995         case SNDRV_PCM_TRIGGER_RESUME:
 996                 bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
 997                 bits |= extended;
 998                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
 999                 bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
1000                 bits |= basic;
1001                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
1002                 break;
1003         case SNDRV_PCM_TRIGGER_STOP:
1004         case SNDRV_PCM_TRIGGER_SUSPEND:
1005                 bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
1006                 bits &= ~basic;
1007                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
1008                 bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
1009                 bits &= ~extended;
1010                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
1011                 break;
1012         default:
1013                 result = -EINVAL;
1014                 break;
1015         }
1016         return result;
1017 }
1018
1019 /* trigger_capture callback */
1020 static int snd_ca0106_pcm_trigger_capture(struct snd_pcm_substream *substream,
1021                                     int cmd)
1022 {
1023         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1024         struct snd_pcm_runtime *runtime = substream->runtime;
1025         struct snd_ca0106_pcm *epcm = runtime->private_data;
1026         int channel = epcm->channel_id;
1027         int result = 0;
1028
1029         switch (cmd) {
1030         case SNDRV_PCM_TRIGGER_START:
1031                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
1032                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
1033                 epcm->running = 1;
1034                 break;
1035         case SNDRV_PCM_TRIGGER_STOP:
1036                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
1037                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
1038                 epcm->running = 0;
1039                 break;
1040         default:
1041                 result = -EINVAL;
1042                 break;
1043         }
1044         return result;
1045 }
1046
1047 /* pointer_playback callback */
1048 static snd_pcm_uframes_t
1049 snd_ca0106_pcm_pointer_playback(struct snd_pcm_substream *substream)
1050 {
1051         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1052         struct snd_pcm_runtime *runtime = substream->runtime;
1053         struct snd_ca0106_pcm *epcm = runtime->private_data;
1054         unsigned int ptr, prev_ptr;
1055         int channel = epcm->channel_id;
1056         int timeout = 10;
1057
1058         if (!epcm->running)
1059                 return 0;
1060
1061         prev_ptr = -1;
1062         do {
1063                 ptr = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
1064                 ptr = (ptr >> 3) * runtime->period_size;
1065                 ptr += bytes_to_frames(runtime,
1066                         snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel));
1067                 if (ptr >= runtime->buffer_size)
1068                         ptr -= runtime->buffer_size;
1069                 if (prev_ptr == ptr)
1070                         return ptr;
1071                 prev_ptr = ptr;
1072         } while (--timeout);
1073         snd_printk(KERN_WARNING "ca0106: unstable DMA pointer!\n");
1074         return 0;
1075 }
1076
1077 /* pointer_capture callback */
1078 static snd_pcm_uframes_t
1079 snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream *substream)
1080 {
1081         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1082         struct snd_pcm_runtime *runtime = substream->runtime;
1083         struct snd_ca0106_pcm *epcm = runtime->private_data;
1084         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
1085         int channel = epcm->channel_id;
1086
1087         if (!epcm->running)
1088                 return 0;
1089
1090         ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
1091         ptr2 = bytes_to_frames(runtime, ptr1);
1092         ptr=ptr2;
1093         if (ptr >= runtime->buffer_size)
1094                 ptr -= runtime->buffer_size;
1095         /*
1096         printk(KERN_DEBUG "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
1097                "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
1098                ptr1, ptr2, ptr, (int)runtime->buffer_size,
1099                (int)runtime->period_size, (int)runtime->frame_bits,
1100                (int)runtime->rate);
1101         */
1102         return ptr;
1103 }
1104
1105 /* operators */
1106 static struct snd_pcm_ops snd_ca0106_playback_front_ops = {
1107         .open =        snd_ca0106_pcm_open_playback_front,
1108         .close =       snd_ca0106_pcm_close_playback,
1109         .ioctl =       snd_pcm_lib_ioctl,
1110         .hw_params =   snd_ca0106_pcm_hw_params_playback,
1111         .hw_free =     snd_ca0106_pcm_hw_free_playback,
1112         .prepare =     snd_ca0106_pcm_prepare_playback,
1113         .trigger =     snd_ca0106_pcm_trigger_playback,
1114         .pointer =     snd_ca0106_pcm_pointer_playback,
1115 };
1116
1117 static struct snd_pcm_ops snd_ca0106_capture_0_ops = {
1118         .open =        snd_ca0106_pcm_open_0_capture,
1119         .close =       snd_ca0106_pcm_close_capture,
1120         .ioctl =       snd_pcm_lib_ioctl,
1121         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1122         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1123         .prepare =     snd_ca0106_pcm_prepare_capture,
1124         .trigger =     snd_ca0106_pcm_trigger_capture,
1125         .pointer =     snd_ca0106_pcm_pointer_capture,
1126 };
1127
1128 static struct snd_pcm_ops snd_ca0106_capture_1_ops = {
1129         .open =        snd_ca0106_pcm_open_1_capture,
1130         .close =       snd_ca0106_pcm_close_capture,
1131         .ioctl =       snd_pcm_lib_ioctl,
1132         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1133         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1134         .prepare =     snd_ca0106_pcm_prepare_capture,
1135         .trigger =     snd_ca0106_pcm_trigger_capture,
1136         .pointer =     snd_ca0106_pcm_pointer_capture,
1137 };
1138
1139 static struct snd_pcm_ops snd_ca0106_capture_2_ops = {
1140         .open =        snd_ca0106_pcm_open_2_capture,
1141         .close =       snd_ca0106_pcm_close_capture,
1142         .ioctl =       snd_pcm_lib_ioctl,
1143         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1144         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1145         .prepare =     snd_ca0106_pcm_prepare_capture,
1146         .trigger =     snd_ca0106_pcm_trigger_capture,
1147         .pointer =     snd_ca0106_pcm_pointer_capture,
1148 };
1149
1150 static struct snd_pcm_ops snd_ca0106_capture_3_ops = {
1151         .open =        snd_ca0106_pcm_open_3_capture,
1152         .close =       snd_ca0106_pcm_close_capture,
1153         .ioctl =       snd_pcm_lib_ioctl,
1154         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1155         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1156         .prepare =     snd_ca0106_pcm_prepare_capture,
1157         .trigger =     snd_ca0106_pcm_trigger_capture,
1158         .pointer =     snd_ca0106_pcm_pointer_capture,
1159 };
1160
1161 static struct snd_pcm_ops snd_ca0106_playback_center_lfe_ops = {
1162         .open =         snd_ca0106_pcm_open_playback_center_lfe,
1163         .close =        snd_ca0106_pcm_close_playback,
1164         .ioctl =        snd_pcm_lib_ioctl,
1165         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1166         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1167         .prepare =      snd_ca0106_pcm_prepare_playback,
1168         .trigger =      snd_ca0106_pcm_trigger_playback,
1169         .pointer =      snd_ca0106_pcm_pointer_playback,
1170 };
1171
1172 static struct snd_pcm_ops snd_ca0106_playback_unknown_ops = {
1173         .open =         snd_ca0106_pcm_open_playback_unknown,
1174         .close =        snd_ca0106_pcm_close_playback,
1175         .ioctl =        snd_pcm_lib_ioctl,
1176         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1177         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1178         .prepare =      snd_ca0106_pcm_prepare_playback,
1179         .trigger =      snd_ca0106_pcm_trigger_playback,
1180         .pointer =      snd_ca0106_pcm_pointer_playback,
1181 };
1182
1183 static struct snd_pcm_ops snd_ca0106_playback_rear_ops = {
1184         .open =         snd_ca0106_pcm_open_playback_rear,
1185         .close =        snd_ca0106_pcm_close_playback,
1186         .ioctl =        snd_pcm_lib_ioctl,
1187         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1188                 .hw_free =      snd_ca0106_pcm_hw_free_playback,
1189         .prepare =      snd_ca0106_pcm_prepare_playback,
1190         .trigger =      snd_ca0106_pcm_trigger_playback,
1191         .pointer =      snd_ca0106_pcm_pointer_playback,
1192 };
1193
1194
1195 static unsigned short snd_ca0106_ac97_read(struct snd_ac97 *ac97,
1196                                              unsigned short reg)
1197 {
1198         struct snd_ca0106 *emu = ac97->private_data;
1199         unsigned long flags;
1200         unsigned short val;
1201
1202         spin_lock_irqsave(&emu->emu_lock, flags);
1203         outb(reg, emu->port + AC97ADDRESS);
1204         val = inw(emu->port + AC97DATA);
1205         spin_unlock_irqrestore(&emu->emu_lock, flags);
1206         return val;
1207 }
1208
1209 static void snd_ca0106_ac97_write(struct snd_ac97 *ac97,
1210                                     unsigned short reg, unsigned short val)
1211 {
1212         struct snd_ca0106 *emu = ac97->private_data;
1213         unsigned long flags;
1214
1215         spin_lock_irqsave(&emu->emu_lock, flags);
1216         outb(reg, emu->port + AC97ADDRESS);
1217         outw(val, emu->port + AC97DATA);
1218         spin_unlock_irqrestore(&emu->emu_lock, flags);
1219 }
1220
1221 static int snd_ca0106_ac97(struct snd_ca0106 *chip)
1222 {
1223         struct snd_ac97_bus *pbus;
1224         struct snd_ac97_template ac97;
1225         int err;
1226         static struct snd_ac97_bus_ops ops = {
1227                 .write = snd_ca0106_ac97_write,
1228                 .read = snd_ca0106_ac97_read,
1229         };
1230
1231         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
1232                 return err;
1233         pbus->no_vra = 1; /* we don't need VRA */
1234
1235         memset(&ac97, 0, sizeof(ac97));
1236         ac97.private_data = chip;
1237         ac97.scaps = AC97_SCAP_NO_SPDIF;
1238         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1239 }
1240
1241 static void ca0106_stop_chip(struct snd_ca0106 *chip);
1242
1243 static int snd_ca0106_free(struct snd_ca0106 *chip)
1244 {
1245         if (chip->res_port != NULL) {
1246                 /* avoid access to already used hardware */
1247                 ca0106_stop_chip(chip);
1248         }
1249         if (chip->irq >= 0)
1250                 free_irq(chip->irq, chip);
1251         // release the data
1252 #if 1
1253         if (chip->buffer.area)
1254                 snd_dma_free_pages(&chip->buffer);
1255 #endif
1256
1257         // release the i/o port
1258         release_and_free_resource(chip->res_port);
1259
1260         pci_disable_device(chip->pci);
1261         kfree(chip);
1262         return 0;
1263 }
1264
1265 static int snd_ca0106_dev_free(struct snd_device *device)
1266 {
1267         struct snd_ca0106 *chip = device->device_data;
1268         return snd_ca0106_free(chip);
1269 }
1270
1271 static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
1272 {
1273         unsigned int status;
1274
1275         struct snd_ca0106 *chip = dev_id;
1276         int i;
1277         int mask;
1278         unsigned int stat76;
1279         struct snd_ca0106_channel *pchannel;
1280
1281         status = inl(chip->port + IPR);
1282         if (! status)
1283                 return IRQ_NONE;
1284
1285         stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1286         /*
1287         snd_printk(KERN_DEBUG "interrupt status = 0x%08x, stat76=0x%08x\n",
1288                    status, stat76);
1289         snd_printk(KERN_DEBUG "ptr=0x%08x\n",
1290                    snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1291         */
1292         mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1293         for(i = 0; i < 4; i++) {
1294                 pchannel = &(chip->playback_channels[i]);
1295                 if (stat76 & mask) {
1296 /* FIXME: Select the correct substream for period elapsed */
1297                         if(pchannel->use) {
1298                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1299                                 //printk(KERN_INFO "interrupt [%d] used\n", i);
1300                         }
1301                 }
1302                 //printk(KERN_INFO "channel=%p\n",pchannel);
1303                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1304                 mask <<= 1;
1305         }
1306         mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1307         for(i = 0; i < 4; i++) {
1308                 pchannel = &(chip->capture_channels[i]);
1309                 if (stat76 & mask) {
1310 /* FIXME: Select the correct substream for period elapsed */
1311                         if(pchannel->use) {
1312                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1313                                 //printk(KERN_INFO "interrupt [%d] used\n", i);
1314                         }
1315                 }
1316                 //printk(KERN_INFO "channel=%p\n",pchannel);
1317                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1318                 mask <<= 1;
1319         }
1320
1321         snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1322
1323         if (chip->midi.dev_id &&
1324             (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1325                 if (chip->midi.interrupt)
1326                         chip->midi.interrupt(&chip->midi, status);
1327                 else
1328                         chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1329         }
1330
1331         // acknowledge the interrupt if necessary
1332         outl(status, chip->port+IPR);
1333
1334         return IRQ_HANDLED;
1335 }
1336
1337 static int __devinit snd_ca0106_pcm(struct snd_ca0106 *emu, int device)
1338 {
1339         struct snd_pcm *pcm;
1340         struct snd_pcm_substream *substream;
1341         int err;
1342
1343         err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm);
1344         if (err < 0)
1345                 return err;
1346
1347         pcm->private_data = emu;
1348
1349         switch (device) {
1350         case 0:
1351           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1352           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1353           break;
1354         case 1:
1355           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1356           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1357           break;
1358         case 2:
1359           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1360           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1361           break;
1362         case 3:
1363           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1364           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1365           break;
1366         }
1367
1368         pcm->info_flags = 0;
1369         strcpy(pcm->name, "CA0106");
1370
1371         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
1372             substream;
1373             substream = substream->next) {
1374                 if ((err = snd_pcm_lib_preallocate_pages(substream,
1375                                                          SNDRV_DMA_TYPE_DEV,
1376                                                          snd_dma_pci_data(emu->pci),
1377                                                          64*1024, 64*1024)) < 0) /* FIXME: 32*1024 for sound buffer, between 32and64 for Periods table. */
1378                         return err;
1379         }
1380
1381         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
1382               substream;
1383               substream = substream->next) {
1384                 if ((err = snd_pcm_lib_preallocate_pages(substream,
1385                                                    SNDRV_DMA_TYPE_DEV,
1386                                                    snd_dma_pci_data(emu->pci),
1387                                                    64*1024, 64*1024)) < 0)
1388                         return err;
1389         }
1390
1391         emu->pcm[device] = pcm;
1392
1393         return 0;
1394 }
1395
1396 #define SPI_REG(reg, value)     (((reg) << SPI_REG_SHIFT) | (value))
1397 static unsigned int spi_dac_init[] = {
1398         SPI_REG(SPI_LDA1_REG,   SPI_DA_BIT_0dB), /* 0dB dig. attenuation */
1399         SPI_REG(SPI_RDA1_REG,   SPI_DA_BIT_0dB),
1400         SPI_REG(SPI_PL_REG,     SPI_PL_BIT_L_L | SPI_PL_BIT_R_R | SPI_IZD_BIT),
1401         SPI_REG(SPI_FMT_REG,    SPI_FMT_BIT_I2S | SPI_IWL_BIT_24),
1402         SPI_REG(SPI_LDA2_REG,   SPI_DA_BIT_0dB),
1403         SPI_REG(SPI_RDA2_REG,   SPI_DA_BIT_0dB),
1404         SPI_REG(SPI_LDA3_REG,   SPI_DA_BIT_0dB),
1405         SPI_REG(SPI_RDA3_REG,   SPI_DA_BIT_0dB),
1406         SPI_REG(SPI_MASTDA_REG, SPI_DA_BIT_0dB),
1407         SPI_REG(9,              0x00),
1408         SPI_REG(SPI_MS_REG,     SPI_DACD0_BIT | SPI_DACD1_BIT | SPI_DACD2_BIT),
1409         SPI_REG(12,             0x00),
1410         SPI_REG(SPI_LDA4_REG,   SPI_DA_BIT_0dB),
1411         SPI_REG(SPI_RDA4_REG,   SPI_DA_BIT_0dB | SPI_DA_BIT_UPDATE),
1412         SPI_REG(SPI_DACD4_REG,  SPI_DACD4_BIT),
1413 };
1414
1415 static unsigned int i2c_adc_init[][2] = {
1416         { 0x17, 0x00 }, /* Reset */
1417         { 0x07, 0x00 }, /* Timeout */
1418         { 0x0b, 0x22 },  /* Interface control */
1419         { 0x0c, 0x22 },  /* Master mode control */
1420         { 0x0d, 0x08 },  /* Powerdown control */
1421         { 0x0e, 0xcf },  /* Attenuation Left  0x01 = -103dB, 0xff = 24dB */
1422         { 0x0f, 0xcf },  /* Attenuation Right 0.5dB steps */
1423         { 0x10, 0x7b },  /* ALC Control 1 */
1424         { 0x11, 0x00 },  /* ALC Control 2 */
1425         { 0x12, 0x32 },  /* ALC Control 3 */
1426         { 0x13, 0x00 },  /* Noise gate control */
1427         { 0x14, 0xa6 },  /* Limiter control */
1428         { 0x15, ADC_MUX_LINEIN },  /* ADC Mixer control */
1429 };
1430
1431 static void ca0106_init_chip(struct snd_ca0106 *chip, int resume)
1432 {
1433         int ch;
1434         unsigned int def_bits;
1435
1436         outl(0, chip->port + INTE);
1437
1438         /*
1439          *  Init to 0x02109204 :
1440          *  Clock accuracy    = 0     (1000ppm)
1441          *  Sample Rate       = 2     (48kHz)
1442          *  Audio Channel     = 1     (Left of 2)
1443          *  Source Number     = 0     (Unspecified)
1444          *  Generation Status = 1     (Original for Cat Code 12)
1445          *  Cat Code          = 12    (Digital Signal Mixer)
1446          *  Mode              = 0     (Mode 0)
1447          *  Emphasis          = 0     (None)
1448          *  CP                = 1     (Copyright unasserted)
1449          *  AN                = 0     (Audio data)
1450          *  P                 = 0     (Consumer)
1451          */
1452         def_bits =
1453                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1454                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1455                 SPCS_GENERATIONSTATUS | 0x00001200 |
1456                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT;
1457         if (!resume) {
1458                 chip->spdif_str_bits[0] = chip->spdif_bits[0] = def_bits;
1459                 chip->spdif_str_bits[1] = chip->spdif_bits[1] = def_bits;
1460                 chip->spdif_str_bits[2] = chip->spdif_bits[2] = def_bits;
1461                 chip->spdif_str_bits[3] = chip->spdif_bits[3] = def_bits;
1462         }
1463         /* Only SPCS1 has been tested */
1464         snd_ca0106_ptr_write(chip, SPCS1, 0, chip->spdif_str_bits[1]);
1465         snd_ca0106_ptr_write(chip, SPCS0, 0, chip->spdif_str_bits[0]);
1466         snd_ca0106_ptr_write(chip, SPCS2, 0, chip->spdif_str_bits[2]);
1467         snd_ca0106_ptr_write(chip, SPCS3, 0, chip->spdif_str_bits[3]);
1468
1469         snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1470         snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1471
1472         /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1473         outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
1474         outw(0x8000, chip->port + AC97DATA);
1475 #if 0 /* FIXME: what are these? */
1476         snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1477         snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1478         snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1479         snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1480 #endif
1481
1482         /* OSS drivers set this. */
1483         /* snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); */
1484
1485         /* Analog or Digital output */
1486         snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1487         /* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers.
1488          * Use 0x000f0000 for surround71
1489          */
1490         snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000);
1491
1492         chip->spdif_enable = 0; /* Set digital SPDIF output off */
1493         /*snd_ca0106_ptr_write(chip, 0x45, 0, 0);*/ /* Analogue out */
1494         /*snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00);*/ /* Digital out */
1495
1496         /* goes to 0x40c80000 when doing SPDIF IN/OUT */
1497         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000);
1498         /* (Mute) CAPTURE feedback into PLAYBACK volume.
1499          * Only lower 16 bits matter.
1500          */
1501         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff);
1502         /* SPDIF IN Volume */
1503         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000);
1504         /* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1505         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000);
1506
1507         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1508         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1509         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1510         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1511
1512         for (ch = 0; ch < 4; ch++) {
1513                 /* Only high 16 bits matter */
1514                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030);
1515                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1516 #if 0 /* Mute */
1517                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040);
1518                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040);
1519                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff);
1520                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff);
1521 #endif
1522         }
1523         if (chip->details->i2c_adc == 1) {
1524                 /* Select MIC, Line in, TAD in, AUX in */
1525                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1526                 /* Default to CAPTURE_SOURCE to i2s in */
1527                 if (!resume)
1528                         chip->capture_source = 3;
1529         } else if (chip->details->ac97 == 1) {
1530                 /* Default to AC97 in */
1531                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x444400e4);
1532                 /* Default to CAPTURE_SOURCE to AC97 in */
1533                 if (!resume)
1534                         chip->capture_source = 4;
1535         } else {
1536                 /* Select MIC, Line in, TAD in, AUX in */
1537                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1538                 /* Default to Set CAPTURE_SOURCE to i2s in */
1539                 if (!resume)
1540                         chip->capture_source = 3;
1541         }
1542
1543         if (chip->details->gpio_type == 2) {
1544                 /* The SB0438 use GPIO differently. */
1545                 /* FIXME: Still need to find out what the other GPIO bits do.
1546                  * E.g. For digital spdif out.
1547                  */
1548                 outl(0x0, chip->port+GPIO);
1549                 /* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1550                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1551         } else if (chip->details->gpio_type == 1) {
1552                 /* The SB0410 and SB0413 use GPIO differently. */
1553                 /* FIXME: Still need to find out what the other GPIO bits do.
1554                  * E.g. For digital spdif out.
1555                  */
1556                 outl(0x0, chip->port+GPIO);
1557                 /* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1558                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1559         } else {
1560                 outl(0x0, chip->port+GPIO);
1561                 outl(0x005f03a3, chip->port+GPIO); /* Analog */
1562                 /* outl(0x005f02a2, chip->port+GPIO); */ /* SPDIF */
1563         }
1564         snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1565
1566         /* outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG); */
1567         /* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1568         /* outl(0x00001409, chip->port+HCFG); */
1569         /* outl(0x00000009, chip->port+HCFG); */
1570         /* AC97 2.0, Enable outputs. */
1571         outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG);
1572
1573         if (chip->details->i2c_adc == 1) {
1574                 /* The SB0410 and SB0413 use I2C to control ADC. */
1575                 int size, n;
1576
1577                 size = ARRAY_SIZE(i2c_adc_init);
1578                 /* snd_printk(KERN_DEBUG "I2C:array size=0x%x\n", size); */
1579                 for (n = 0; n < size; n++)
1580                         snd_ca0106_i2c_write(chip, i2c_adc_init[n][0],
1581                                              i2c_adc_init[n][1]);
1582                 for (n = 0; n < 4; n++) {
1583                         chip->i2c_capture_volume[n][0] = 0xcf;
1584                         chip->i2c_capture_volume[n][1] = 0xcf;
1585                 }
1586                 chip->i2c_capture_source = 2; /* Line in */
1587                 /* Enable Line-in capture. MIC in currently untested. */
1588                 /* snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); */
1589         }
1590
1591         if (chip->details->spi_dac) {
1592                 /* The SB0570 use SPI to control DAC. */
1593                 int size, n;
1594
1595                 size = ARRAY_SIZE(spi_dac_init);
1596                 for (n = 0; n < size; n++) {
1597                         int reg = spi_dac_init[n] >> SPI_REG_SHIFT;
1598
1599                         snd_ca0106_spi_write(chip, spi_dac_init[n]);
1600                         if (reg < ARRAY_SIZE(chip->spi_dac_reg))
1601                                 chip->spi_dac_reg[reg] = spi_dac_init[n];
1602                 }
1603
1604                 /* Enable front dac only */
1605                 snd_ca0106_pcm_power_dac(chip, PCM_FRONT_CHANNEL, 1);
1606         }
1607 }
1608
1609 static void ca0106_stop_chip(struct snd_ca0106 *chip)
1610 {
1611         /* disable interrupts */
1612         snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
1613         outl(0, chip->port + INTE);
1614         snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
1615         udelay(1000);
1616         /* disable audio */
1617         /* outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG); */
1618         outl(0, chip->port + HCFG);
1619         /* FIXME: We need to stop and DMA transfers here.
1620          *        But as I am not sure how yet, we cannot from the dma pages.
1621          * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
1622          */
1623 }
1624
1625 static int __devinit snd_ca0106_create(int dev, struct snd_card *card,
1626                                          struct pci_dev *pci,
1627                                          struct snd_ca0106 **rchip)
1628 {
1629         struct snd_ca0106 *chip;
1630         struct snd_ca0106_details *c;
1631         int err;
1632         static struct snd_device_ops ops = {
1633                 .dev_free = snd_ca0106_dev_free,
1634         };
1635
1636         *rchip = NULL;
1637
1638         err = pci_enable_device(pci);
1639         if (err < 0)
1640                 return err;
1641         if (pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0 ||
1642             pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32)) < 0) {
1643                 printk(KERN_ERR "error to set 32bit mask DMA\n");
1644                 pci_disable_device(pci);
1645                 return -ENXIO;
1646         }
1647
1648         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1649         if (chip == NULL) {
1650                 pci_disable_device(pci);
1651                 return -ENOMEM;
1652         }
1653
1654         chip->card = card;
1655         chip->pci = pci;
1656         chip->irq = -1;
1657
1658         spin_lock_init(&chip->emu_lock);
1659
1660         chip->port = pci_resource_start(pci, 0);
1661         chip->res_port = request_region(chip->port, 0x20, "snd_ca0106");
1662         if (!chip->res_port) {
1663                 snd_ca0106_free(chip);
1664                 printk(KERN_ERR "cannot allocate the port\n");
1665                 return -EBUSY;
1666         }
1667
1668         if (request_irq(pci->irq, snd_ca0106_interrupt,
1669                         IRQF_SHARED, KBUILD_MODNAME, chip)) {
1670                 snd_ca0106_free(chip);
1671                 printk(KERN_ERR "cannot grab irq\n");
1672                 return -EBUSY;
1673         }
1674         chip->irq = pci->irq;
1675
1676         /* This stores the periods table. */
1677         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1678                                 1024, &chip->buffer) < 0) {
1679                 snd_ca0106_free(chip);
1680                 return -ENOMEM;
1681         }
1682
1683         pci_set_master(pci);
1684         /* read serial */
1685         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1686         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1687         printk(KERN_INFO "snd-ca0106: Model %04x Rev %08x Serial %08x\n",
1688                chip->model, pci->revision, chip->serial);
1689         strcpy(card->driver, "CA0106");
1690         strcpy(card->shortname, "CA0106");
1691
1692         for (c = ca0106_chip_details; c->serial; c++) {
1693                 if (subsystem[dev]) {
1694                         if (c->serial == subsystem[dev])
1695                                 break;
1696                 } else if (c->serial == chip->serial)
1697                         break;
1698         }
1699         chip->details = c;
1700         if (subsystem[dev]) {
1701                 printk(KERN_INFO "snd-ca0106: Sound card name=%s, "
1702                        "subsystem=0x%x. Forced to subsystem=0x%x\n",
1703                        c->name, chip->serial, subsystem[dev]);
1704         }
1705
1706         sprintf(card->longname, "%s at 0x%lx irq %i",
1707                 c->name, chip->port, chip->irq);
1708
1709         ca0106_init_chip(chip, 0);
1710
1711         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1712         if (err < 0) {
1713                 snd_ca0106_free(chip);
1714                 return err;
1715         }
1716         *rchip = chip;
1717         return 0;
1718 }
1719
1720
1721 static void ca0106_midi_interrupt_enable(struct snd_ca_midi *midi, int intr)
1722 {
1723         snd_ca0106_intr_enable((struct snd_ca0106 *)(midi->dev_id), intr);
1724 }
1725
1726 static void ca0106_midi_interrupt_disable(struct snd_ca_midi *midi, int intr)
1727 {
1728         snd_ca0106_intr_disable((struct snd_ca0106 *)(midi->dev_id), intr);
1729 }
1730
1731 static unsigned char ca0106_midi_read(struct snd_ca_midi *midi, int idx)
1732 {
1733         return (unsigned char)snd_ca0106_ptr_read((struct snd_ca0106 *)(midi->dev_id),
1734                                                   midi->port + idx, 0);
1735 }
1736
1737 static void ca0106_midi_write(struct snd_ca_midi *midi, int data, int idx)
1738 {
1739         snd_ca0106_ptr_write((struct snd_ca0106 *)(midi->dev_id), midi->port + idx, 0, data);
1740 }
1741
1742 static struct snd_card *ca0106_dev_id_card(void *dev_id)
1743 {
1744         return ((struct snd_ca0106 *)dev_id)->card;
1745 }
1746
1747 static int ca0106_dev_id_port(void *dev_id)
1748 {
1749         return ((struct snd_ca0106 *)dev_id)->port;
1750 }
1751
1752 static int __devinit snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
1753 {
1754         struct snd_ca_midi *midi;
1755         char *name;
1756         int err;
1757
1758         if (channel == CA0106_MIDI_CHAN_B) {
1759                 name = "CA0106 MPU-401 (UART) B";
1760                 midi =  &chip->midi2;
1761                 midi->tx_enable = INTE_MIDI_TX_B;
1762                 midi->rx_enable = INTE_MIDI_RX_B;
1763                 midi->ipr_tx = IPR_MIDI_TX_B;
1764                 midi->ipr_rx = IPR_MIDI_RX_B;
1765                 midi->port = MIDI_UART_B_DATA;
1766         } else {
1767                 name = "CA0106 MPU-401 (UART)";
1768                 midi =  &chip->midi;
1769                 midi->tx_enable = INTE_MIDI_TX_A;
1770                 midi->rx_enable = INTE_MIDI_TX_B;
1771                 midi->ipr_tx = IPR_MIDI_TX_A;
1772                 midi->ipr_rx = IPR_MIDI_RX_A;
1773                 midi->port = MIDI_UART_A_DATA;
1774         }
1775
1776         midi->reset = CA0106_MPU401_RESET;
1777         midi->enter_uart = CA0106_MPU401_ENTER_UART;
1778         midi->ack = CA0106_MPU401_ACK;
1779
1780         midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1781         midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1782
1783         midi->channel = channel;
1784
1785         midi->interrupt_enable = ca0106_midi_interrupt_enable;
1786         midi->interrupt_disable = ca0106_midi_interrupt_disable;
1787
1788         midi->read = ca0106_midi_read;
1789         midi->write = ca0106_midi_write;
1790
1791         midi->get_dev_id_card = ca0106_dev_id_card;
1792         midi->get_dev_id_port = ca0106_dev_id_port;
1793
1794         midi->dev_id = chip;
1795
1796         if ((err = ca_midi_init(chip, midi, 0, name)) < 0)
1797                 return err;
1798
1799         return 0;
1800 }
1801
1802
1803 static int __devinit snd_ca0106_probe(struct pci_dev *pci,
1804                                         const struct pci_device_id *pci_id)
1805 {
1806         static int dev;
1807         struct snd_card *card;
1808         struct snd_ca0106 *chip;
1809         int i, err;
1810
1811         if (dev >= SNDRV_CARDS)
1812                 return -ENODEV;
1813         if (!enable[dev]) {
1814                 dev++;
1815                 return -ENOENT;
1816         }
1817
1818         err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
1819         if (err < 0)
1820                 return err;
1821
1822         err = snd_ca0106_create(dev, card, pci, &chip);
1823         if (err < 0)
1824                 goto error;
1825         card->private_data = chip;
1826
1827         for (i = 0; i < 4; i++) {
1828                 err = snd_ca0106_pcm(chip, i);
1829                 if (err < 0)
1830                         goto error;
1831         }
1832
1833         if (chip->details->ac97 == 1) {
1834                 /* The SB0410 and SB0413 do not have an AC97 chip. */
1835                 err = snd_ca0106_ac97(chip);
1836                 if (err < 0)
1837                         goto error;
1838         }
1839         err = snd_ca0106_mixer(chip);
1840         if (err < 0)
1841                 goto error;
1842
1843         snd_printdd("ca0106: probe for MIDI channel A ...");
1844         err = snd_ca0106_midi(chip, CA0106_MIDI_CHAN_A);
1845         if (err < 0)
1846                 goto error;
1847         snd_printdd(" done.\n");
1848
1849 #ifdef CONFIG_PROC_FS
1850         snd_ca0106_proc_init(chip);
1851 #endif
1852
1853         snd_card_set_dev(card, &pci->dev);
1854
1855         err = snd_card_register(card);
1856         if (err < 0)
1857                 goto error;
1858
1859         pci_set_drvdata(pci, card);
1860         dev++;
1861         return 0;
1862
1863  error:
1864         snd_card_free(card);
1865         return err;
1866 }
1867
1868 static void __devexit snd_ca0106_remove(struct pci_dev *pci)
1869 {
1870         snd_card_free(pci_get_drvdata(pci));
1871         pci_set_drvdata(pci, NULL);
1872 }
1873
1874 #ifdef CONFIG_PM
1875 static int snd_ca0106_suspend(struct pci_dev *pci, pm_message_t state)
1876 {
1877         struct snd_card *card = pci_get_drvdata(pci);
1878         struct snd_ca0106 *chip = card->private_data;
1879         int i;
1880
1881         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1882         for (i = 0; i < 4; i++)
1883                 snd_pcm_suspend_all(chip->pcm[i]);
1884         if (chip->details->ac97)
1885                 snd_ac97_suspend(chip->ac97);
1886         snd_ca0106_mixer_suspend(chip);
1887
1888         ca0106_stop_chip(chip);
1889
1890         pci_disable_device(pci);
1891         pci_save_state(pci);
1892         pci_set_power_state(pci, pci_choose_state(pci, state));
1893         return 0;
1894 }
1895
1896 static int snd_ca0106_resume(struct pci_dev *pci)
1897 {
1898         struct snd_card *card = pci_get_drvdata(pci);
1899         struct snd_ca0106 *chip = card->private_data;
1900         int i;
1901
1902         pci_set_power_state(pci, PCI_D0);
1903         pci_restore_state(pci);
1904
1905         if (pci_enable_device(pci) < 0) {
1906                 snd_card_disconnect(card);
1907                 return -EIO;
1908         }
1909
1910         pci_set_master(pci);
1911
1912         ca0106_init_chip(chip, 1);
1913
1914         if (chip->details->ac97)
1915                 snd_ac97_resume(chip->ac97);
1916         snd_ca0106_mixer_resume(chip);
1917         if (chip->details->spi_dac) {
1918                 for (i = 0; i < ARRAY_SIZE(chip->spi_dac_reg); i++)
1919                         snd_ca0106_spi_write(chip, chip->spi_dac_reg[i]);
1920         }
1921
1922         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1923         return 0;
1924 }
1925 #endif
1926
1927 // PCI IDs
1928 static DEFINE_PCI_DEVICE_TABLE(snd_ca0106_ids) = {
1929         { PCI_VDEVICE(CREATIVE, 0x0007), 0 },   /* Audigy LS or Live 24bit */
1930         { 0, }
1931 };
1932 MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1933
1934 // pci_driver definition
1935 static struct pci_driver driver = {
1936         .name = KBUILD_MODNAME,
1937         .id_table = snd_ca0106_ids,
1938         .probe = snd_ca0106_probe,
1939         .remove = __devexit_p(snd_ca0106_remove),
1940 #ifdef CONFIG_PM
1941         .suspend = snd_ca0106_suspend,
1942         .resume = snd_ca0106_resume,
1943 #endif
1944 };
1945
1946 // initialization of the module
1947 static int __init alsa_card_ca0106_init(void)
1948 {
1949         return pci_register_driver(&driver);
1950 }
1951
1952 // clean up the module
1953 static void __exit alsa_card_ca0106_exit(void)
1954 {
1955         pci_unregister_driver(&driver);
1956 }
1957
1958 module_init(alsa_card_ca0106_init)
1959 module_exit(alsa_card_ca0106_exit)