linux/sound/pci/ca0106/ca0106_main.c
<<
>>
Prefs
   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/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
 151MODULE_AUTHOR("James Courtier-Dutton <James@superbug.demon.co.uk>");
 152MODULE_DESCRIPTION("CA0106");
 153MODULE_LICENSE("GPL");
 154MODULE_SUPPORTED_DEVICE("{{Creative,SB CA0106 chip}}");
 155
 156// module parameters (see "Module Parameters")
 157static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
 158static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
 159static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
 160static uint subsystem[SNDRV_CARDS]; /* Force card subsystem model */
 161
 162module_param_array(index, int, NULL, 0444);
 163MODULE_PARM_DESC(index, "Index value for the CA0106 soundcard.");
 164module_param_array(id, charp, NULL, 0444);
 165MODULE_PARM_DESC(id, "ID string for the CA0106 soundcard.");
 166module_param_array(enable, bool, NULL, 0444);
 167MODULE_PARM_DESC(enable, "Enable the CA0106 soundcard.");
 168module_param_array(subsystem, uint, NULL, 0444);
 169MODULE_PARM_DESC(subsystem, "Force card subsystem model.");
 170
 171#include "ca0106.h"
 172
 173static 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 */
 299static 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
 320static 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
 346unsigned 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
 362void 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
 378int 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 */
 411int 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
 467static 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
 478static 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
 490static void snd_ca0106_pcm_free_substream(struct snd_pcm_runtime *runtime)
 491{
 492        kfree(runtime->private_data);
 493}
 494
 495static const int spi_dacd_reg[] = {
 496        SPI_DACD0_REG,
 497        SPI_DACD1_REG,
 498        SPI_DACD2_REG,
 499        0,
 500        SPI_DACD4_REG,
 501};
 502static 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
 510static 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
 519static 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
 538static 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 */
 559static 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 */
 610static 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
 631static 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
 636static 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
 641static 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
 646static 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 */
 652static 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 */
 694static 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
 704static 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
 709static 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
 714static 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
 719static 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 */
 725static 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 */
 733static 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 */
 739static 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 */
 747static 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 */
 753static 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 */
 864static 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 */
 953static 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 */
1020static 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 */
1048static snd_pcm_uframes_t
1049snd_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 */
1078static snd_pcm_uframes_t
1079snd_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 */
1106static 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
1117static 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
1128static 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
1139static 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
1150static 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
1161static 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
1172static 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
1183static 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
1195static 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
1209static 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
1221static 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
1241static void ca0106_stop_chip(struct snd_ca0106 *chip);
1242
1243static 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
1265static 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
1271static 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
1337static 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))
1397static 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
1415static 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
1431static 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
1609static 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
1625static 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, "snd_ca0106", 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
1721static 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
1726static 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
1731static 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
1737static 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
1742static struct snd_card *ca0106_dev_id_card(void *dev_id)
1743{
1744        return ((struct snd_ca0106 *)dev_id)->card;
1745}
1746
1747static int ca0106_dev_id_port(void *dev_id)
1748{
1749        return ((struct snd_ca0106 *)dev_id)->port;
1750}
1751
1752static 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
1803static 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
1868static 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
1875static 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
1896static 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
1928static DEFINE_PCI_DEVICE_TABLE(snd_ca0106_ids) = {
1929        { PCI_VDEVICE(CREATIVE, 0x0007), 0 },   /* Audigy LS or Live 24bit */
1930        { 0, }
1931};
1932MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1933
1934// pci_driver definition
1935static struct pci_driver driver = {
1936        .name = "CA0106",
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
1947static int __init alsa_card_ca0106_init(void)
1948{
1949        return pci_register_driver(&driver);
1950}
1951
1952// clean up the module
1953static void __exit alsa_card_ca0106_exit(void)
1954{
1955        pci_unregister_driver(&driver);
1956}
1957
1958module_init(alsa_card_ca0106_init)
1959module_exit(alsa_card_ca0106_exit)
1960