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/module.h>
 144#include <linux/dma-mapping.h>
 145#include <sound/core.h>
 146#include <sound/initval.h>
 147#include <sound/pcm.h>
 148#include <sound/ac97_codec.h>
 149#include <sound/info.h>
 150
 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 bool 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 const 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 const 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                dev_err(emu->card->dev, "i2c_write: invalid values.\n");
 421                return -EINVAL;
 422        }
 423
 424        tmp = reg << 25 | value << 16;
 425        /*
 426        dev_dbg(emu->card->dev, "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                        /*dev_dbg(emu->card->dev, "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                dev_err(emu->card->dev, "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 *chip,
 520                                  struct snd_ca0106_details *details,
 521                                  int channel_id)
 522{
 523        switch (channel_id) {
 524        case PCM_FRONT_CHANNEL:
 525                return (details->spi_dac & 0xf000) >> (4 * 3);
 526        case PCM_REAR_CHANNEL:
 527                return (details->spi_dac & 0x0f00) >> (4 * 2);
 528        case PCM_CENTER_LFE_CHANNEL:
 529                return (details->spi_dac & 0x00f0) >> (4 * 1);
 530        case PCM_UNKNOWN_CHANNEL:
 531                return (details->spi_dac & 0x000f) >> (4 * 0);
 532        default:
 533                dev_dbg(chip->card->dev, "ca0106: unknown channel_id %d\n",
 534                           channel_id);
 535        }
 536        return 0;
 537}
 538
 539static int snd_ca0106_pcm_power_dac(struct snd_ca0106 *chip, int channel_id,
 540                                    int power)
 541{
 542        if (chip->details->spi_dac) {
 543                const int dac = snd_ca0106_channel_dac(chip, chip->details,
 544                                                       channel_id);
 545                const int reg = spi_dacd_reg[dac];
 546                const int bit = spi_dacd_bit[dac];
 547
 548                if (power)
 549                        /* Power up */
 550                        chip->spi_dac_reg[reg] &= ~bit;
 551                else
 552                        /* Power down */
 553                        chip->spi_dac_reg[reg] |= bit;
 554                return snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
 555        }
 556        return 0;
 557}
 558
 559/* open_playback callback */
 560static int snd_ca0106_pcm_open_playback_channel(struct snd_pcm_substream *substream,
 561                                                int channel_id)
 562{
 563        struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 564        struct snd_ca0106_channel *channel = &(chip->playback_channels[channel_id]);
 565        struct snd_ca0106_pcm *epcm;
 566        struct snd_pcm_runtime *runtime = substream->runtime;
 567        int err;
 568
 569        epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 570
 571        if (epcm == NULL)
 572                return -ENOMEM;
 573        epcm->emu = chip;
 574        epcm->substream = substream;
 575        epcm->channel_id=channel_id;
 576  
 577        runtime->private_data = epcm;
 578        runtime->private_free = snd_ca0106_pcm_free_substream;
 579  
 580        runtime->hw = snd_ca0106_playback_hw;
 581
 582        channel->emu = chip;
 583        channel->number = channel_id;
 584
 585        channel->use = 1;
 586        /*
 587        dev_dbg(chip->card->dev, "open:channel_id=%d, chip=%p, channel=%p\n",
 588               channel_id, chip, channel);
 589        */
 590        //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 591        channel->epcm = epcm;
 592        if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 593                return err;
 594        if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 595                return err;
 596        snd_pcm_set_sync(substream);
 597
 598        /* Front channel dac should already be on */
 599        if (channel_id != PCM_FRONT_CHANNEL) {
 600                err = snd_ca0106_pcm_power_dac(chip, channel_id, 1);
 601                if (err < 0)
 602                        return err;
 603        }
 604
 605        restore_spdif_bits(chip, channel_id);
 606
 607        return 0;
 608}
 609
 610/* close callback */
 611static int snd_ca0106_pcm_close_playback(struct snd_pcm_substream *substream)
 612{
 613        struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 614        struct snd_pcm_runtime *runtime = substream->runtime;
 615        struct snd_ca0106_pcm *epcm = runtime->private_data;
 616        chip->playback_channels[epcm->channel_id].use = 0;
 617
 618        restore_spdif_bits(chip, epcm->channel_id);
 619
 620        /* Front channel dac should stay on */
 621        if (epcm->channel_id != PCM_FRONT_CHANNEL) {
 622                int err;
 623                err = snd_ca0106_pcm_power_dac(chip, epcm->channel_id, 0);
 624                if (err < 0)
 625                        return err;
 626        }
 627
 628        /* FIXME: maybe zero others */
 629        return 0;
 630}
 631
 632static int snd_ca0106_pcm_open_playback_front(struct snd_pcm_substream *substream)
 633{
 634        return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
 635}
 636
 637static int snd_ca0106_pcm_open_playback_center_lfe(struct snd_pcm_substream *substream)
 638{
 639        return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
 640}
 641
 642static int snd_ca0106_pcm_open_playback_unknown(struct snd_pcm_substream *substream)
 643{
 644        return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
 645}
 646
 647static int snd_ca0106_pcm_open_playback_rear(struct snd_pcm_substream *substream)
 648{
 649        return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
 650}
 651
 652/* open_capture callback */
 653static int snd_ca0106_pcm_open_capture_channel(struct snd_pcm_substream *substream,
 654                                               int channel_id)
 655{
 656        struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 657        struct snd_ca0106_channel *channel = &(chip->capture_channels[channel_id]);
 658        struct snd_ca0106_pcm *epcm;
 659        struct snd_pcm_runtime *runtime = substream->runtime;
 660        int err;
 661
 662        epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 663        if (!epcm)
 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        dev_dbg(chip->card->dev, "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        dev_dbg(emu->card->dev,
 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        dev_dbg(emu->card->dev,
 783                "dma_addr=%x, dma_area=%p, table_base=%p\n",
 784                   runtime->dma_addr, runtime->dma_area, table_base);
 785        dev_dbg(emu->card->dev,
 786                "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
 787                   emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 788#endif /* debug */
 789        /* Rate can be set per channel. */
 790        /* reg40 control host to fifo */
 791        /* reg71 controls DAC rate. */
 792        switch (runtime->rate) {
 793        case 44100:
 794                reg40_set = 0x10000 << (channel<<1);
 795                reg71_set = 0x01010000; 
 796                break;
 797        case 48000:
 798                reg40_set = 0;
 799                reg71_set = 0; 
 800                break;
 801        case 96000:
 802                reg40_set = 0x20000 << (channel<<1);
 803                reg71_set = 0x02020000; 
 804                break;
 805        case 192000:
 806                reg40_set = 0x30000 << (channel<<1);
 807                reg71_set = 0x03030000; 
 808                break;
 809        default:
 810                reg40_set = 0;
 811                reg71_set = 0; 
 812                break;
 813        }
 814        /* Format is a global setting */
 815        /* FIXME: Only let the first channel accessed set this. */
 816        switch (runtime->format) {
 817        case SNDRV_PCM_FORMAT_S16_LE:
 818                hcfg_set = 0;
 819                break;
 820        case SNDRV_PCM_FORMAT_S32_LE:
 821                hcfg_set = HCFG_PLAYBACK_S32_LE;
 822                break;
 823        default:
 824                hcfg_set = 0;
 825                break;
 826        }
 827        hcfg = inl(emu->port + HCFG) ;
 828        hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 829        outl(hcfg, emu->port + HCFG);
 830        reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
 831        reg40 = (reg40 & ~reg40_mask) | reg40_set;
 832        snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
 833        reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 834        reg71 = (reg71 & ~reg71_mask) | reg71_set;
 835        snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 836
 837        /* FIXME: Check emu->buffer.size before actually writing to it. */
 838        for(i=0; i < runtime->periods; i++) {
 839                table_base[i*2] = runtime->dma_addr + (i * period_size_bytes);
 840                table_base[i*2+1] = period_size_bytes << 16;
 841        }
 842 
 843        snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
 844        snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
 845        snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
 846        snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
 847        snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
 848        /* FIXME  test what 0 bytes does. */
 849        snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
 850        snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
 851        snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
 852        snd_ca0106_ptr_write(emu, 0x08, channel, 0);
 853        snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
 854#if 0
 855        snd_ca0106_ptr_write(emu, SPCS0, 0,
 856                               SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
 857                               SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
 858                               SPCS_GENERATIONSTATUS | 0x00001200 |
 859                               0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
 860#endif
 861
 862        return 0;
 863}
 864
 865/* prepare capture callback */
 866static int snd_ca0106_pcm_prepare_capture(struct snd_pcm_substream *substream)
 867{
 868        struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 869        struct snd_pcm_runtime *runtime = substream->runtime;
 870        struct snd_ca0106_pcm *epcm = runtime->private_data;
 871        int channel = epcm->channel_id;
 872        u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
 873        u32 hcfg_set = 0x00000000;
 874        u32 hcfg;
 875        u32 over_sampling=0x2;
 876        u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
 877        u32 reg71_set = 0;
 878        u32 reg71;
 879        
 880#if 0 /* debug */
 881        dev_dbg(emu->card->dev,
 882                   "prepare:channel_number=%d, rate=%d, format=0x%x, "
 883                   "channels=%d, buffer_size=%ld, period_size=%ld, "
 884                   "periods=%u, frames_to_bytes=%d\n",
 885                   channel, runtime->rate, runtime->format,
 886                   runtime->channels, runtime->buffer_size,
 887                   runtime->period_size, runtime->periods,
 888                   frames_to_bytes(runtime, 1));
 889        dev_dbg(emu->card->dev,
 890                "dma_addr=%x, dma_area=%p, table_base=%p\n",
 891                   runtime->dma_addr, runtime->dma_area, table_base);
 892        dev_dbg(emu->card->dev,
 893                "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
 894                   emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 895#endif /* debug */
 896        /* reg71 controls ADC rate. */
 897        switch (runtime->rate) {
 898        case 44100:
 899                reg71_set = 0x00004000;
 900                break;
 901        case 48000:
 902                reg71_set = 0; 
 903                break;
 904        case 96000:
 905                reg71_set = 0x00008000;
 906                over_sampling=0xa;
 907                break;
 908        case 192000:
 909                reg71_set = 0x0000c000; 
 910                over_sampling=0xa;
 911                break;
 912        default:
 913                reg71_set = 0; 
 914                break;
 915        }
 916        /* Format is a global setting */
 917        /* FIXME: Only let the first channel accessed set this. */
 918        switch (runtime->format) {
 919        case SNDRV_PCM_FORMAT_S16_LE:
 920                hcfg_set = 0;
 921                break;
 922        case SNDRV_PCM_FORMAT_S32_LE:
 923                hcfg_set = HCFG_CAPTURE_S32_LE;
 924                break;
 925        default:
 926                hcfg_set = 0;
 927                break;
 928        }
 929        hcfg = inl(emu->port + HCFG) ;
 930        hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 931        outl(hcfg, emu->port + HCFG);
 932        reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 933        reg71 = (reg71 & ~reg71_mask) | reg71_set;
 934        snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 935        if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
 936                snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
 937        }
 938
 939
 940        /*
 941        dev_dbg(emu->card->dev,
 942               "prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, "
 943               "buffer_size=%ld, period_size=%ld, frames_to_bytes=%d\n",
 944               channel, runtime->rate, runtime->format, runtime->channels,
 945               runtime->buffer_size, runtime->period_size,
 946               frames_to_bytes(runtime, 1));
 947        */
 948        snd_ca0106_ptr_write(emu, 0x13, channel, 0);
 949        snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
 950        snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
 951        snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
 952
 953        return 0;
 954}
 955
 956/* trigger_playback callback */
 957static int snd_ca0106_pcm_trigger_playback(struct snd_pcm_substream *substream,
 958                                    int cmd)
 959{
 960        struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 961        struct snd_pcm_runtime *runtime;
 962        struct snd_ca0106_pcm *epcm;
 963        int channel;
 964        int result = 0;
 965        struct snd_pcm_substream *s;
 966        u32 basic = 0;
 967        u32 extended = 0;
 968        u32 bits;
 969        int running = 0;
 970
 971        switch (cmd) {
 972        case SNDRV_PCM_TRIGGER_START:
 973        case SNDRV_PCM_TRIGGER_RESUME:
 974                running = 1;
 975                break;
 976        case SNDRV_PCM_TRIGGER_STOP:
 977        case SNDRV_PCM_TRIGGER_SUSPEND:
 978        default:
 979                running = 0;
 980                break;
 981        }
 982        snd_pcm_group_for_each_entry(s, substream) {
 983                if (snd_pcm_substream_chip(s) != emu ||
 984                    s->stream != SNDRV_PCM_STREAM_PLAYBACK)
 985                        continue;
 986                runtime = s->runtime;
 987                epcm = runtime->private_data;
 988                channel = epcm->channel_id;
 989                /* dev_dbg(emu->card->dev, "channel=%d\n", channel); */
 990                epcm->running = running;
 991                basic |= (0x1 << channel);
 992                extended |= (0x10 << channel);
 993                snd_pcm_trigger_done(s, substream);
 994        }
 995        /* dev_dbg(emu->card->dev, "basic=0x%x, extended=0x%x\n",basic, extended); */
 996
 997        switch (cmd) {
 998        case SNDRV_PCM_TRIGGER_START:
 999        case SNDRV_PCM_TRIGGER_RESUME:
1000                bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
1001                bits |= extended;
1002                snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
1003                bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
1004                bits |= basic;
1005                snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
1006                break;
1007        case SNDRV_PCM_TRIGGER_STOP:
1008        case SNDRV_PCM_TRIGGER_SUSPEND:
1009                bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
1010                bits &= ~basic;
1011                snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
1012                bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
1013                bits &= ~extended;
1014                snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
1015                break;
1016        default:
1017                result = -EINVAL;
1018                break;
1019        }
1020        return result;
1021}
1022
1023/* trigger_capture callback */
1024static int snd_ca0106_pcm_trigger_capture(struct snd_pcm_substream *substream,
1025                                    int cmd)
1026{
1027        struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1028        struct snd_pcm_runtime *runtime = substream->runtime;
1029        struct snd_ca0106_pcm *epcm = runtime->private_data;
1030        int channel = epcm->channel_id;
1031        int result = 0;
1032
1033        switch (cmd) {
1034        case SNDRV_PCM_TRIGGER_START:
1035                snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
1036                snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
1037                epcm->running = 1;
1038                break;
1039        case SNDRV_PCM_TRIGGER_STOP:
1040                snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
1041                snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
1042                epcm->running = 0;
1043                break;
1044        default:
1045                result = -EINVAL;
1046                break;
1047        }
1048        return result;
1049}
1050
1051/* pointer_playback callback */
1052static snd_pcm_uframes_t
1053snd_ca0106_pcm_pointer_playback(struct snd_pcm_substream *substream)
1054{
1055        struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1056        struct snd_pcm_runtime *runtime = substream->runtime;
1057        struct snd_ca0106_pcm *epcm = runtime->private_data;
1058        unsigned int ptr, prev_ptr;
1059        int channel = epcm->channel_id;
1060        int timeout = 10;
1061
1062        if (!epcm->running)
1063                return 0;
1064
1065        prev_ptr = -1;
1066        do {
1067                ptr = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
1068                ptr = (ptr >> 3) * runtime->period_size;
1069                ptr += bytes_to_frames(runtime,
1070                        snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel));
1071                if (ptr >= runtime->buffer_size)
1072                        ptr -= runtime->buffer_size;
1073                if (prev_ptr == ptr)
1074                        return ptr;
1075                prev_ptr = ptr;
1076        } while (--timeout);
1077        dev_warn(emu->card->dev, "ca0106: unstable DMA pointer!\n");
1078        return 0;
1079}
1080
1081/* pointer_capture callback */
1082static snd_pcm_uframes_t
1083snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream *substream)
1084{
1085        struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1086        struct snd_pcm_runtime *runtime = substream->runtime;
1087        struct snd_ca0106_pcm *epcm = runtime->private_data;
1088        snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
1089        int channel = epcm->channel_id;
1090
1091        if (!epcm->running)
1092                return 0;
1093
1094        ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
1095        ptr2 = bytes_to_frames(runtime, ptr1);
1096        ptr=ptr2;
1097        if (ptr >= runtime->buffer_size)
1098                ptr -= runtime->buffer_size;
1099        /*
1100        dev_dbg(emu->card->dev, "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
1101               "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
1102               ptr1, ptr2, ptr, (int)runtime->buffer_size,
1103               (int)runtime->period_size, (int)runtime->frame_bits,
1104               (int)runtime->rate);
1105        */
1106        return ptr;
1107}
1108
1109/* operators */
1110static const struct snd_pcm_ops snd_ca0106_playback_front_ops = {
1111        .open =        snd_ca0106_pcm_open_playback_front,
1112        .close =       snd_ca0106_pcm_close_playback,
1113        .ioctl =       snd_pcm_lib_ioctl,
1114        .hw_params =   snd_ca0106_pcm_hw_params_playback,
1115        .hw_free =     snd_ca0106_pcm_hw_free_playback,
1116        .prepare =     snd_ca0106_pcm_prepare_playback,
1117        .trigger =     snd_ca0106_pcm_trigger_playback,
1118        .pointer =     snd_ca0106_pcm_pointer_playback,
1119};
1120
1121static const struct snd_pcm_ops snd_ca0106_capture_0_ops = {
1122        .open =        snd_ca0106_pcm_open_0_capture,
1123        .close =       snd_ca0106_pcm_close_capture,
1124        .ioctl =       snd_pcm_lib_ioctl,
1125        .hw_params =   snd_ca0106_pcm_hw_params_capture,
1126        .hw_free =     snd_ca0106_pcm_hw_free_capture,
1127        .prepare =     snd_ca0106_pcm_prepare_capture,
1128        .trigger =     snd_ca0106_pcm_trigger_capture,
1129        .pointer =     snd_ca0106_pcm_pointer_capture,
1130};
1131
1132static const struct snd_pcm_ops snd_ca0106_capture_1_ops = {
1133        .open =        snd_ca0106_pcm_open_1_capture,
1134        .close =       snd_ca0106_pcm_close_capture,
1135        .ioctl =       snd_pcm_lib_ioctl,
1136        .hw_params =   snd_ca0106_pcm_hw_params_capture,
1137        .hw_free =     snd_ca0106_pcm_hw_free_capture,
1138        .prepare =     snd_ca0106_pcm_prepare_capture,
1139        .trigger =     snd_ca0106_pcm_trigger_capture,
1140        .pointer =     snd_ca0106_pcm_pointer_capture,
1141};
1142
1143static const struct snd_pcm_ops snd_ca0106_capture_2_ops = {
1144        .open =        snd_ca0106_pcm_open_2_capture,
1145        .close =       snd_ca0106_pcm_close_capture,
1146        .ioctl =       snd_pcm_lib_ioctl,
1147        .hw_params =   snd_ca0106_pcm_hw_params_capture,
1148        .hw_free =     snd_ca0106_pcm_hw_free_capture,
1149        .prepare =     snd_ca0106_pcm_prepare_capture,
1150        .trigger =     snd_ca0106_pcm_trigger_capture,
1151        .pointer =     snd_ca0106_pcm_pointer_capture,
1152};
1153
1154static const struct snd_pcm_ops snd_ca0106_capture_3_ops = {
1155        .open =        snd_ca0106_pcm_open_3_capture,
1156        .close =       snd_ca0106_pcm_close_capture,
1157        .ioctl =       snd_pcm_lib_ioctl,
1158        .hw_params =   snd_ca0106_pcm_hw_params_capture,
1159        .hw_free =     snd_ca0106_pcm_hw_free_capture,
1160        .prepare =     snd_ca0106_pcm_prepare_capture,
1161        .trigger =     snd_ca0106_pcm_trigger_capture,
1162        .pointer =     snd_ca0106_pcm_pointer_capture,
1163};
1164
1165static const struct snd_pcm_ops snd_ca0106_playback_center_lfe_ops = {
1166        .open =         snd_ca0106_pcm_open_playback_center_lfe,
1167        .close =        snd_ca0106_pcm_close_playback,
1168        .ioctl =        snd_pcm_lib_ioctl,
1169        .hw_params =    snd_ca0106_pcm_hw_params_playback,
1170        .hw_free =      snd_ca0106_pcm_hw_free_playback,
1171        .prepare =      snd_ca0106_pcm_prepare_playback,     
1172        .trigger =      snd_ca0106_pcm_trigger_playback,  
1173        .pointer =      snd_ca0106_pcm_pointer_playback, 
1174};
1175
1176static const struct snd_pcm_ops snd_ca0106_playback_unknown_ops = {
1177        .open =         snd_ca0106_pcm_open_playback_unknown,
1178        .close =        snd_ca0106_pcm_close_playback,
1179        .ioctl =        snd_pcm_lib_ioctl,
1180        .hw_params =    snd_ca0106_pcm_hw_params_playback,
1181        .hw_free =      snd_ca0106_pcm_hw_free_playback,
1182        .prepare =      snd_ca0106_pcm_prepare_playback,     
1183        .trigger =      snd_ca0106_pcm_trigger_playback,  
1184        .pointer =      snd_ca0106_pcm_pointer_playback, 
1185};
1186
1187static const struct snd_pcm_ops snd_ca0106_playback_rear_ops = {
1188        .open =         snd_ca0106_pcm_open_playback_rear,
1189        .close =        snd_ca0106_pcm_close_playback,
1190        .ioctl =        snd_pcm_lib_ioctl,
1191        .hw_params =    snd_ca0106_pcm_hw_params_playback,
1192                .hw_free =      snd_ca0106_pcm_hw_free_playback,
1193        .prepare =      snd_ca0106_pcm_prepare_playback,     
1194        .trigger =      snd_ca0106_pcm_trigger_playback,  
1195        .pointer =      snd_ca0106_pcm_pointer_playback, 
1196};
1197
1198
1199static unsigned short snd_ca0106_ac97_read(struct snd_ac97 *ac97,
1200                                             unsigned short reg)
1201{
1202        struct snd_ca0106 *emu = ac97->private_data;
1203        unsigned long flags;
1204        unsigned short val;
1205
1206        spin_lock_irqsave(&emu->emu_lock, flags);
1207        outb(reg, emu->port + AC97ADDRESS);
1208        val = inw(emu->port + AC97DATA);
1209        spin_unlock_irqrestore(&emu->emu_lock, flags);
1210        return val;
1211}
1212
1213static void snd_ca0106_ac97_write(struct snd_ac97 *ac97,
1214                                    unsigned short reg, unsigned short val)
1215{
1216        struct snd_ca0106 *emu = ac97->private_data;
1217        unsigned long flags;
1218  
1219        spin_lock_irqsave(&emu->emu_lock, flags);
1220        outb(reg, emu->port + AC97ADDRESS);
1221        outw(val, emu->port + AC97DATA);
1222        spin_unlock_irqrestore(&emu->emu_lock, flags);
1223}
1224
1225static int snd_ca0106_ac97(struct snd_ca0106 *chip)
1226{
1227        struct snd_ac97_bus *pbus;
1228        struct snd_ac97_template ac97;
1229        int err;
1230        static struct snd_ac97_bus_ops ops = {
1231                .write = snd_ca0106_ac97_write,
1232                .read = snd_ca0106_ac97_read,
1233        };
1234  
1235        if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
1236                return err;
1237        pbus->no_vra = 1; /* we don't need VRA */
1238
1239        memset(&ac97, 0, sizeof(ac97));
1240        ac97.private_data = chip;
1241        ac97.scaps = AC97_SCAP_NO_SPDIF;
1242        return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1243}
1244
1245static void ca0106_stop_chip(struct snd_ca0106 *chip);
1246
1247static int snd_ca0106_free(struct snd_ca0106 *chip)
1248{
1249        if (chip->res_port != NULL) {
1250                /* avoid access to already used hardware */
1251                ca0106_stop_chip(chip);
1252        }
1253        if (chip->irq >= 0)
1254                free_irq(chip->irq, chip);
1255        // release the data
1256#if 1
1257        if (chip->buffer.area)
1258                snd_dma_free_pages(&chip->buffer);
1259#endif
1260
1261        // release the i/o port
1262        release_and_free_resource(chip->res_port);
1263
1264        pci_disable_device(chip->pci);
1265        kfree(chip);
1266        return 0;
1267}
1268
1269static int snd_ca0106_dev_free(struct snd_device *device)
1270{
1271        struct snd_ca0106 *chip = device->device_data;
1272        return snd_ca0106_free(chip);
1273}
1274
1275static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
1276{
1277        unsigned int status;
1278
1279        struct snd_ca0106 *chip = dev_id;
1280        int i;
1281        int mask;
1282        unsigned int stat76;
1283        struct snd_ca0106_channel *pchannel;
1284
1285        status = inl(chip->port + IPR);
1286        if (! status)
1287                return IRQ_NONE;
1288
1289        stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1290        /*
1291        dev_dbg(emu->card->dev, "interrupt status = 0x%08x, stat76=0x%08x\n",
1292                   status, stat76);
1293        dev_dbg(emu->card->dev, "ptr=0x%08x\n",
1294                   snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1295        */
1296        mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1297        for(i = 0; i < 4; i++) {
1298                pchannel = &(chip->playback_channels[i]);
1299                if (stat76 & mask) {
1300/* FIXME: Select the correct substream for period elapsed */
1301                        if(pchannel->use) {
1302                                snd_pcm_period_elapsed(pchannel->epcm->substream);
1303                                /* dev_dbg(emu->card->dev, "interrupt [%d] used\n", i); */
1304                        }
1305                }
1306                /*
1307                dev_dbg(emu->card->dev, "channel=%p\n", pchannel);
1308                dev_dbg(emu->card->dev, "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1309                */
1310                mask <<= 1;
1311        }
1312        mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1313        for(i = 0; i < 4; i++) {
1314                pchannel = &(chip->capture_channels[i]);
1315                if (stat76 & mask) {
1316/* FIXME: Select the correct substream for period elapsed */
1317                        if(pchannel->use) {
1318                                snd_pcm_period_elapsed(pchannel->epcm->substream);
1319                                /* dev_dbg(emu->card->dev, "interrupt [%d] used\n", i); */
1320                        }
1321                }
1322                /*
1323                dev_dbg(emu->card->dev, "channel=%p\n", pchannel);
1324                dev_dbg(emu->card->dev, "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1325                */
1326                mask <<= 1;
1327        }
1328
1329        snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1330
1331        if (chip->midi.dev_id &&
1332            (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1333                if (chip->midi.interrupt)
1334                        chip->midi.interrupt(&chip->midi, status);
1335                else
1336                        chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1337        }
1338
1339        // acknowledge the interrupt if necessary
1340        outl(status, chip->port+IPR);
1341
1342        return IRQ_HANDLED;
1343}
1344
1345static const struct snd_pcm_chmap_elem surround_map[] = {
1346        { .channels = 2,
1347          .map = { SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
1348        { }
1349};
1350
1351static const struct snd_pcm_chmap_elem clfe_map[] = {
1352        { .channels = 2,
1353          .map = { SNDRV_CHMAP_FC, SNDRV_CHMAP_LFE } },
1354        { }
1355};
1356
1357static const struct snd_pcm_chmap_elem side_map[] = {
1358        { .channels = 2,
1359          .map = { SNDRV_CHMAP_SL, SNDRV_CHMAP_SR } },
1360        { }
1361};
1362
1363static int snd_ca0106_pcm(struct snd_ca0106 *emu, int device)
1364{
1365        struct snd_pcm *pcm;
1366        struct snd_pcm_substream *substream;
1367        const struct snd_pcm_chmap_elem *map = NULL;
1368        int err;
1369  
1370        err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm);
1371        if (err < 0)
1372                return err;
1373  
1374        pcm->private_data = emu;
1375
1376        switch (device) {
1377        case 0:
1378          snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1379          snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1380          map = snd_pcm_std_chmaps;
1381          break;
1382        case 1:
1383          snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1384          snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1385          map = surround_map;
1386          break;
1387        case 2:
1388          snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1389          snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1390          map = clfe_map;
1391          break;
1392        case 3:
1393          snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1394          snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1395          map = side_map;
1396          break;
1397        }
1398
1399        pcm->info_flags = 0;
1400        strcpy(pcm->name, "CA0106");
1401
1402        for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; 
1403            substream; 
1404            substream = substream->next) {
1405                if ((err = snd_pcm_lib_preallocate_pages(substream, 
1406                                                         SNDRV_DMA_TYPE_DEV, 
1407                                                         snd_dma_pci_data(emu->pci), 
1408                                                         64*1024, 64*1024)) < 0) /* FIXME: 32*1024 for sound buffer, between 32and64 for Periods table. */
1409                        return err;
1410        }
1411
1412        for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; 
1413              substream; 
1414              substream = substream->next) {
1415                if ((err = snd_pcm_lib_preallocate_pages(substream, 
1416                                                   SNDRV_DMA_TYPE_DEV, 
1417                                                   snd_dma_pci_data(emu->pci), 
1418                                                   64*1024, 64*1024)) < 0)
1419                        return err;
1420        }
1421  
1422        err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK, map, 2,
1423                                     1 << 2, NULL);
1424        if (err < 0)
1425                return err;
1426
1427        emu->pcm[device] = pcm;
1428  
1429        return 0;
1430}
1431
1432#define SPI_REG(reg, value)     (((reg) << SPI_REG_SHIFT) | (value))
1433static unsigned int spi_dac_init[] = {
1434        SPI_REG(SPI_LDA1_REG,   SPI_DA_BIT_0dB), /* 0dB dig. attenuation */
1435        SPI_REG(SPI_RDA1_REG,   SPI_DA_BIT_0dB),
1436        SPI_REG(SPI_PL_REG,     SPI_PL_BIT_L_L | SPI_PL_BIT_R_R | SPI_IZD_BIT),
1437        SPI_REG(SPI_FMT_REG,    SPI_FMT_BIT_I2S | SPI_IWL_BIT_24),
1438        SPI_REG(SPI_LDA2_REG,   SPI_DA_BIT_0dB),
1439        SPI_REG(SPI_RDA2_REG,   SPI_DA_BIT_0dB),
1440        SPI_REG(SPI_LDA3_REG,   SPI_DA_BIT_0dB),
1441        SPI_REG(SPI_RDA3_REG,   SPI_DA_BIT_0dB),
1442        SPI_REG(SPI_MASTDA_REG, SPI_DA_BIT_0dB),
1443        SPI_REG(9,              0x00),
1444        SPI_REG(SPI_MS_REG,     SPI_DACD0_BIT | SPI_DACD1_BIT | SPI_DACD2_BIT),
1445        SPI_REG(12,             0x00),
1446        SPI_REG(SPI_LDA4_REG,   SPI_DA_BIT_0dB),
1447        SPI_REG(SPI_RDA4_REG,   SPI_DA_BIT_0dB | SPI_DA_BIT_UPDATE),
1448        SPI_REG(SPI_DACD4_REG,  SPI_DACD4_BIT),
1449};
1450
1451static unsigned int i2c_adc_init[][2] = {
1452        { 0x17, 0x00 }, /* Reset */
1453        { 0x07, 0x00 }, /* Timeout */
1454        { 0x0b, 0x22 },  /* Interface control */
1455        { 0x0c, 0x22 },  /* Master mode control */
1456        { 0x0d, 0x08 },  /* Powerdown control */
1457        { 0x0e, 0xcf },  /* Attenuation Left  0x01 = -103dB, 0xff = 24dB */
1458        { 0x0f, 0xcf },  /* Attenuation Right 0.5dB steps */
1459        { 0x10, 0x7b },  /* ALC Control 1 */
1460        { 0x11, 0x00 },  /* ALC Control 2 */
1461        { 0x12, 0x32 },  /* ALC Control 3 */
1462        { 0x13, 0x00 },  /* Noise gate control */
1463        { 0x14, 0xa6 },  /* Limiter control */
1464        { 0x15, ADC_MUX_LINEIN },  /* ADC Mixer control */
1465};
1466
1467static void ca0106_init_chip(struct snd_ca0106 *chip, int resume)
1468{
1469        int ch;
1470        unsigned int def_bits;
1471
1472        outl(0, chip->port + INTE);
1473
1474        /*
1475         *  Init to 0x02109204 :
1476         *  Clock accuracy    = 0     (1000ppm)
1477         *  Sample Rate       = 2     (48kHz)
1478         *  Audio Channel     = 1     (Left of 2)
1479         *  Source Number     = 0     (Unspecified)
1480         *  Generation Status = 1     (Original for Cat Code 12)
1481         *  Cat Code          = 12    (Digital Signal Mixer)
1482         *  Mode              = 0     (Mode 0)
1483         *  Emphasis          = 0     (None)
1484         *  CP                = 1     (Copyright unasserted)
1485         *  AN                = 0     (Audio data)
1486         *  P                 = 0     (Consumer)
1487         */
1488        def_bits =
1489                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1490                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1491                SPCS_GENERATIONSTATUS | 0x00001200 |
1492                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT;
1493        if (!resume) {
1494                chip->spdif_str_bits[0] = chip->spdif_bits[0] = def_bits;
1495                chip->spdif_str_bits[1] = chip->spdif_bits[1] = def_bits;
1496                chip->spdif_str_bits[2] = chip->spdif_bits[2] = def_bits;
1497                chip->spdif_str_bits[3] = chip->spdif_bits[3] = def_bits;
1498        }
1499        /* Only SPCS1 has been tested */
1500        snd_ca0106_ptr_write(chip, SPCS1, 0, chip->spdif_str_bits[1]);
1501        snd_ca0106_ptr_write(chip, SPCS0, 0, chip->spdif_str_bits[0]);
1502        snd_ca0106_ptr_write(chip, SPCS2, 0, chip->spdif_str_bits[2]);
1503        snd_ca0106_ptr_write(chip, SPCS3, 0, chip->spdif_str_bits[3]);
1504
1505        snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1506        snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1507
1508        /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1509        outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
1510        outw(0x8000, chip->port + AC97DATA);
1511#if 0 /* FIXME: what are these? */
1512        snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1513        snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1514        snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1515        snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1516#endif
1517
1518        /* OSS drivers set this. */
1519        /* snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); */
1520
1521        /* Analog or Digital output */
1522        snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1523        /* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers.
1524         * Use 0x000f0000 for surround71
1525         */
1526        snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000);
1527
1528        chip->spdif_enable = 0; /* Set digital SPDIF output off */
1529        /*snd_ca0106_ptr_write(chip, 0x45, 0, 0);*/ /* Analogue out */
1530        /*snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00);*/ /* Digital out */
1531
1532        /* goes to 0x40c80000 when doing SPDIF IN/OUT */
1533        snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000);
1534        /* (Mute) CAPTURE feedback into PLAYBACK volume.
1535         * Only lower 16 bits matter.
1536         */
1537        snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff);
1538        /* SPDIF IN Volume */
1539        snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000);
1540        /* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1541        snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000);
1542
1543        snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1544        snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1545        snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1546        snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1547
1548        for (ch = 0; ch < 4; ch++) {
1549                /* Only high 16 bits matter */
1550                snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030);
1551                snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1552#if 0 /* Mute */
1553                snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040);
1554                snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040);
1555                snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff);
1556                snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff);
1557#endif
1558        }
1559        if (chip->details->i2c_adc == 1) {
1560                /* Select MIC, Line in, TAD in, AUX in */
1561                snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1562                /* Default to CAPTURE_SOURCE to i2s in */
1563                if (!resume)
1564                        chip->capture_source = 3;
1565        } else if (chip->details->ac97 == 1) {
1566                /* Default to AC97 in */
1567                snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x444400e4);
1568                /* Default to CAPTURE_SOURCE to AC97 in */
1569                if (!resume)
1570                        chip->capture_source = 4;
1571        } else {
1572                /* Select MIC, Line in, TAD in, AUX in */
1573                snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1574                /* Default to Set CAPTURE_SOURCE to i2s in */
1575                if (!resume)
1576                        chip->capture_source = 3;
1577        }
1578
1579        if (chip->details->gpio_type == 2) {
1580                /* The SB0438 use GPIO differently. */
1581                /* FIXME: Still need to find out what the other GPIO bits do.
1582                 * E.g. For digital spdif out.
1583                 */
1584                outl(0x0, chip->port+GPIO);
1585                /* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1586                outl(0x005f5301, chip->port+GPIO); /* Analog */
1587        } else if (chip->details->gpio_type == 1) {
1588                /* The SB0410 and SB0413 use GPIO differently. */
1589                /* FIXME: Still need to find out what the other GPIO bits do.
1590                 * E.g. For digital spdif out.
1591                 */
1592                outl(0x0, chip->port+GPIO);
1593                /* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1594                outl(0x005f5301, chip->port+GPIO); /* Analog */
1595        } else {
1596                outl(0x0, chip->port+GPIO);
1597                outl(0x005f03a3, chip->port+GPIO); /* Analog */
1598                /* outl(0x005f02a2, chip->port+GPIO); */ /* SPDIF */
1599        }
1600        snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1601
1602        /* outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG); */
1603        /* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1604        /* outl(0x00001409, chip->port+HCFG); */
1605        /* outl(0x00000009, chip->port+HCFG); */
1606        /* AC97 2.0, Enable outputs. */
1607        outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG);
1608
1609        if (chip->details->i2c_adc == 1) {
1610                /* The SB0410 and SB0413 use I2C to control ADC. */
1611                int size, n;
1612
1613                size = ARRAY_SIZE(i2c_adc_init);
1614                /* dev_dbg(emu->card->dev, "I2C:array size=0x%x\n", size); */
1615                for (n = 0; n < size; n++)
1616                        snd_ca0106_i2c_write(chip, i2c_adc_init[n][0],
1617                                             i2c_adc_init[n][1]);
1618                for (n = 0; n < 4; n++) {
1619                        chip->i2c_capture_volume[n][0] = 0xcf;
1620                        chip->i2c_capture_volume[n][1] = 0xcf;
1621                }
1622                chip->i2c_capture_source = 2; /* Line in */
1623                /* Enable Line-in capture. MIC in currently untested. */
1624                /* snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); */
1625        }
1626
1627        if (chip->details->spi_dac) {
1628                /* The SB0570 use SPI to control DAC. */
1629                int size, n;
1630
1631                size = ARRAY_SIZE(spi_dac_init);
1632                for (n = 0; n < size; n++) {
1633                        int reg = spi_dac_init[n] >> SPI_REG_SHIFT;
1634
1635                        snd_ca0106_spi_write(chip, spi_dac_init[n]);
1636                        if (reg < ARRAY_SIZE(chip->spi_dac_reg))
1637                                chip->spi_dac_reg[reg] = spi_dac_init[n];
1638                }
1639
1640                /* Enable front dac only */
1641                snd_ca0106_pcm_power_dac(chip, PCM_FRONT_CHANNEL, 1);
1642        }
1643}
1644
1645static void ca0106_stop_chip(struct snd_ca0106 *chip)
1646{
1647        /* disable interrupts */
1648        snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
1649        outl(0, chip->port + INTE);
1650        snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
1651        udelay(1000);
1652        /* disable audio */
1653        /* outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG); */
1654        outl(0, chip->port + HCFG);
1655        /* FIXME: We need to stop and DMA transfers here.
1656         *        But as I am not sure how yet, we cannot from the dma pages.
1657         * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
1658         */
1659}
1660
1661static int snd_ca0106_create(int dev, struct snd_card *card,
1662                                         struct pci_dev *pci,
1663                                         struct snd_ca0106 **rchip)
1664{
1665        struct snd_ca0106 *chip;
1666        struct snd_ca0106_details *c;
1667        int err;
1668        static struct snd_device_ops ops = {
1669                .dev_free = snd_ca0106_dev_free,
1670        };
1671
1672        *rchip = NULL;
1673
1674        err = pci_enable_device(pci);
1675        if (err < 0)
1676                return err;
1677        if (dma_set_mask(&pci->dev, DMA_BIT_MASK(32)) < 0 ||
1678            dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32)) < 0) {
1679                dev_err(card->dev, "error to set 32bit mask DMA\n");
1680                pci_disable_device(pci);
1681                return -ENXIO;
1682        }
1683
1684        chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1685        if (chip == NULL) {
1686                pci_disable_device(pci);
1687                return -ENOMEM;
1688        }
1689
1690        chip->card = card;
1691        chip->pci = pci;
1692        chip->irq = -1;
1693
1694        spin_lock_init(&chip->emu_lock);
1695
1696        chip->port = pci_resource_start(pci, 0);
1697        chip->res_port = request_region(chip->port, 0x20, "snd_ca0106");
1698        if (!chip->res_port) {
1699                snd_ca0106_free(chip);
1700                dev_err(card->dev, "cannot allocate the port\n");
1701                return -EBUSY;
1702        }
1703
1704        if (request_irq(pci->irq, snd_ca0106_interrupt,
1705                        IRQF_SHARED, KBUILD_MODNAME, chip)) {
1706                snd_ca0106_free(chip);
1707                dev_err(card->dev, "cannot grab irq\n");
1708                return -EBUSY;
1709        }
1710        chip->irq = pci->irq;
1711
1712        /* This stores the periods table. */
1713        if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1714                                1024, &chip->buffer) < 0) {
1715                snd_ca0106_free(chip);
1716                return -ENOMEM;
1717        }
1718
1719        pci_set_master(pci);
1720        /* read serial */
1721        pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1722        pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1723        dev_info(card->dev, "Model %04x Rev %08x Serial %08x\n",
1724               chip->model, pci->revision, chip->serial);
1725        strcpy(card->driver, "CA0106");
1726        strcpy(card->shortname, "CA0106");
1727
1728        for (c = ca0106_chip_details; c->serial; c++) {
1729                if (subsystem[dev]) {
1730                        if (c->serial == subsystem[dev])
1731                                break;
1732                } else if (c->serial == chip->serial)
1733                        break;
1734        }
1735        chip->details = c;
1736        if (subsystem[dev]) {
1737                dev_info(card->dev, "Sound card name=%s, "
1738                       "subsystem=0x%x. Forced to subsystem=0x%x\n",
1739                       c->name, chip->serial, subsystem[dev]);
1740        }
1741
1742        sprintf(card->longname, "%s at 0x%lx irq %i",
1743                c->name, chip->port, chip->irq);
1744
1745        ca0106_init_chip(chip, 0);
1746
1747        err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1748        if (err < 0) {
1749                snd_ca0106_free(chip);
1750                return err;
1751        }
1752        *rchip = chip;
1753        return 0;
1754}
1755
1756
1757static void ca0106_midi_interrupt_enable(struct snd_ca_midi *midi, int intr)
1758{
1759        snd_ca0106_intr_enable((struct snd_ca0106 *)(midi->dev_id), intr);
1760}
1761
1762static void ca0106_midi_interrupt_disable(struct snd_ca_midi *midi, int intr)
1763{
1764        snd_ca0106_intr_disable((struct snd_ca0106 *)(midi->dev_id), intr);
1765}
1766
1767static unsigned char ca0106_midi_read(struct snd_ca_midi *midi, int idx)
1768{
1769        return (unsigned char)snd_ca0106_ptr_read((struct snd_ca0106 *)(midi->dev_id),
1770                                                  midi->port + idx, 0);
1771}
1772
1773static void ca0106_midi_write(struct snd_ca_midi *midi, int data, int idx)
1774{
1775        snd_ca0106_ptr_write((struct snd_ca0106 *)(midi->dev_id), midi->port + idx, 0, data);
1776}
1777
1778static struct snd_card *ca0106_dev_id_card(void *dev_id)
1779{
1780        return ((struct snd_ca0106 *)dev_id)->card;
1781}
1782
1783static int ca0106_dev_id_port(void *dev_id)
1784{
1785        return ((struct snd_ca0106 *)dev_id)->port;
1786}
1787
1788static int snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
1789{
1790        struct snd_ca_midi *midi;
1791        char *name;
1792        int err;
1793
1794        if (channel == CA0106_MIDI_CHAN_B) {
1795                name = "CA0106 MPU-401 (UART) B";
1796                midi =  &chip->midi2;
1797                midi->tx_enable = INTE_MIDI_TX_B;
1798                midi->rx_enable = INTE_MIDI_RX_B;
1799                midi->ipr_tx = IPR_MIDI_TX_B;
1800                midi->ipr_rx = IPR_MIDI_RX_B;
1801                midi->port = MIDI_UART_B_DATA;
1802        } else {
1803                name = "CA0106 MPU-401 (UART)";
1804                midi =  &chip->midi;
1805                midi->tx_enable = INTE_MIDI_TX_A;
1806                midi->rx_enable = INTE_MIDI_TX_B;
1807                midi->ipr_tx = IPR_MIDI_TX_A;
1808                midi->ipr_rx = IPR_MIDI_RX_A;
1809                midi->port = MIDI_UART_A_DATA;
1810        }
1811
1812        midi->reset = CA0106_MPU401_RESET;
1813        midi->enter_uart = CA0106_MPU401_ENTER_UART;
1814        midi->ack = CA0106_MPU401_ACK;
1815
1816        midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1817        midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1818
1819        midi->channel = channel;
1820
1821        midi->interrupt_enable = ca0106_midi_interrupt_enable;
1822        midi->interrupt_disable = ca0106_midi_interrupt_disable;
1823
1824        midi->read = ca0106_midi_read;
1825        midi->write = ca0106_midi_write;
1826
1827        midi->get_dev_id_card = ca0106_dev_id_card;
1828        midi->get_dev_id_port = ca0106_dev_id_port;
1829
1830        midi->dev_id = chip;
1831        
1832        if ((err = ca_midi_init(chip, midi, 0, name)) < 0)
1833                return err;
1834
1835        return 0;
1836}
1837
1838
1839static int snd_ca0106_probe(struct pci_dev *pci,
1840                                        const struct pci_device_id *pci_id)
1841{
1842        static int dev;
1843        struct snd_card *card;
1844        struct snd_ca0106 *chip;
1845        int i, err;
1846
1847        if (dev >= SNDRV_CARDS)
1848                return -ENODEV;
1849        if (!enable[dev]) {
1850                dev++;
1851                return -ENOENT;
1852        }
1853
1854        err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1855                           0, &card);
1856        if (err < 0)
1857                return err;
1858
1859        err = snd_ca0106_create(dev, card, pci, &chip);
1860        if (err < 0)
1861                goto error;
1862        card->private_data = chip;
1863
1864        for (i = 0; i < 4; i++) {
1865                err = snd_ca0106_pcm(chip, i);
1866                if (err < 0)
1867                        goto error;
1868        }
1869
1870        if (chip->details->ac97 == 1) {
1871                /* The SB0410 and SB0413 do not have an AC97 chip. */
1872                err = snd_ca0106_ac97(chip);
1873                if (err < 0)
1874                        goto error;
1875        }
1876        err = snd_ca0106_mixer(chip);
1877        if (err < 0)
1878                goto error;
1879
1880        dev_dbg(card->dev, "probe for MIDI channel A ...");
1881        err = snd_ca0106_midi(chip, CA0106_MIDI_CHAN_A);
1882        if (err < 0)
1883                goto error;
1884        dev_dbg(card->dev, " done.\n");
1885
1886#ifdef CONFIG_SND_PROC_FS
1887        snd_ca0106_proc_init(chip);
1888#endif
1889
1890        err = snd_card_register(card);
1891        if (err < 0)
1892                goto error;
1893
1894        pci_set_drvdata(pci, card);
1895        dev++;
1896        return 0;
1897
1898 error:
1899        snd_card_free(card);
1900        return err;
1901}
1902
1903static void snd_ca0106_remove(struct pci_dev *pci)
1904{
1905        snd_card_free(pci_get_drvdata(pci));
1906}
1907
1908#ifdef CONFIG_PM_SLEEP
1909static int snd_ca0106_suspend(struct device *dev)
1910{
1911        struct snd_card *card = dev_get_drvdata(dev);
1912        struct snd_ca0106 *chip = card->private_data;
1913        int i;
1914
1915        snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1916        for (i = 0; i < 4; i++)
1917                snd_pcm_suspend_all(chip->pcm[i]);
1918        if (chip->details->ac97)
1919                snd_ac97_suspend(chip->ac97);
1920        snd_ca0106_mixer_suspend(chip);
1921
1922        ca0106_stop_chip(chip);
1923        return 0;
1924}
1925
1926static int snd_ca0106_resume(struct device *dev)
1927{
1928        struct snd_card *card = dev_get_drvdata(dev);
1929        struct snd_ca0106 *chip = card->private_data;
1930        int i;
1931
1932        ca0106_init_chip(chip, 1);
1933
1934        if (chip->details->ac97)
1935                snd_ac97_resume(chip->ac97);
1936        snd_ca0106_mixer_resume(chip);
1937        if (chip->details->spi_dac) {
1938                for (i = 0; i < ARRAY_SIZE(chip->spi_dac_reg); i++)
1939                        snd_ca0106_spi_write(chip, chip->spi_dac_reg[i]);
1940        }
1941
1942        snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1943        return 0;
1944}
1945
1946static SIMPLE_DEV_PM_OPS(snd_ca0106_pm, snd_ca0106_suspend, snd_ca0106_resume);
1947#define SND_CA0106_PM_OPS       &snd_ca0106_pm
1948#else
1949#define SND_CA0106_PM_OPS       NULL
1950#endif
1951
1952// PCI IDs
1953static const struct pci_device_id snd_ca0106_ids[] = {
1954        { PCI_VDEVICE(CREATIVE, 0x0007), 0 },   /* Audigy LS or Live 24bit */
1955        { 0, }
1956};
1957MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1958
1959// pci_driver definition
1960static struct pci_driver ca0106_driver = {
1961        .name = KBUILD_MODNAME,
1962        .id_table = snd_ca0106_ids,
1963        .probe = snd_ca0106_probe,
1964        .remove = snd_ca0106_remove,
1965        .driver = {
1966                .pm = SND_CA0106_PM_OPS,
1967        },
1968};
1969
1970module_pci_driver(ca0106_driver);
1971