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