sound/pci/ca0106/ca0106_main.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  Copyright (c) 2004 James Courtier-Dutton <James@superbug.demon.co.uk>
   4  *  Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit
   5  *  Version: 0.0.25
   6  *
   7  *  FEATURES currently supported:
   8  *    Front, Rear and Center/LFE.
   9  *    Surround40 and Surround51.
  10  *    Capture from MIC an LINE IN input.
  11  *    SPDIF digital playback of PCM stereo and AC3/DTS works.
  12  *    (One can use a standard mono mini-jack to one RCA plugs cable.
  13  *     or one can use a standard stereo mini-jack to two RCA plugs cable.
  14  *     Plug one of the RCA plugs into the Coax input of the external decoder/receiver.)
  15  *    ( In theory one could output 3 different AC3 streams at once, to 3 different SPDIF outputs. )
  16  *    Notes on how to capture sound:
  17  *      The AC97 is used in the PLAYBACK direction.
  18  *      The output from the AC97 chip, instead of reaching the speakers, is fed into the Philips 1361T ADC.
  19  *      So, to record from the MIC, set the MIC Playback volume to max,
  20  *      unmute the MIC and turn up the MASTER Playback volume.
  21  *      So, to prevent feedback when capturing, minimise the "Capture feedback into Playback" volume.
  22  *
  23  *    The only playback controls that currently do anything are: -
  24  *    Analog Front
  25  *    Analog Rear
  26  *    Analog Center/LFE
  27  *    SPDIF Front
  28  *    SPDIF Rear
  29  *    SPDIF Center/LFE
  30  *
  31  *    For capture from Mic in or Line in.
  32  *    Digital/Analog ( switch must be in Analog mode for CAPTURE. )
  33  *
  34  *    CAPTURE feedback into PLAYBACK
  35  *
  36  *  Changelog:
  37  *    Support interrupts per period.
  38  *    Removed noise from Center/LFE channel when in Analog mode.
  39  *    Rename and remove mixer controls.
  40  *  0.0.6
  41  *    Use separate card based DMA buffer for periods table list.
  42  *  0.0.7
  43  *    Change remove and rename ctrls into lists.
  44  *  0.0.8
  45  *    Try to fix capture sources.
  46  *  0.0.9
  47  *    Fix AC3 output.
  48  *    Enable S32_LE format support.
  49  *  0.0.10
  50  *    Enable playback 48000 and 96000 rates. (Rates other that these do not work, even with "plug:front".)
  51  *  0.0.11
  52  *    Add Model name recognition.
  53  *  0.0.12
  54  *    Correct interrupt timing. interrupt at end of period, instead of in the middle of a playback period.
  55  *    Remove redundent "voice" handling.
  56  *  0.0.13
  57  *    Single trigger call for multi channels.
  58  *  0.0.14
  59  *    Set limits based on what the sound card hardware can do.
  60  *    playback periods_min=2, periods_max=8
  61  *    capture hw constraints require period_size = n * 64 bytes.
  62  *    playback hw constraints require period_size = n * 64 bytes.
  63  *  0.0.15
  64  *    Minor updates.
  65  *  0.0.16
  66  *    Implement 192000 sample rate.
  67  *  0.0.17
  68  *    Add support for SB0410 and SB0413.
  69  *  0.0.18
  70  *    Modified Copyright message.
  71  *  0.0.19
  72  *    Finally fix support for SB Live 24 bit. SB0410 and SB0413.
  73  *    The output codec needs resetting, otherwise all output is muted.
  74  *  0.0.20
  75  *    Merge "pci_disable_device(pci);" fixes.
  76  *  0.0.21
  77  *    Add 4 capture channels. (SPDIF only comes in on channel 0. )
  78  *    Add SPDIF capture using optional digital I/O module for SB Live 24bit. (Analog capture does not yet work.)
  79  *  0.0.22
  80  *    Add support for MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97. From kiksen, bug #901
  81  *  0.0.23
  82  *    Implement support for Line-in capture on SB Live 24bit.
  83  *  0.0.24
  84  *    Add support for mute control on SB Live 24bit (cards w/ SPI DAC)
  85  *  0.0.25
  86  *    Powerdown SPI DAC channels when not in use
  87  *
  88  *  BUGS:
  89  *    Some stability problems when unloading the snd-ca0106 kernel module.
  90  *    --
  91  *
  92  *  TODO:
  93  *    4 Capture channels, only one implemented so far.
  94  *    Other capture rates apart from 48khz not implemented.
  95  *    MIDI
  96  *    --
  97  *  GENERAL INFO:
  98  *    Model: SB0310
  99  *    P17 Chip: CA0106-DAT
 100  *    AC97 Codec: STAC 9721
 101  *    ADC: Philips 1361T (Stereo 24bit)
 102  *    DAC: WM8746EDS (6-channel, 24bit, 192Khz)
 103  *
 104  *  GENERAL INFO:
 105  *    Model: SB0410
 106  *    P17 Chip: CA0106-DAT
 107  *    AC97 Codec: None
 108  *    ADC: WM8775EDS (4 Channel)
 109  *    DAC: CS4382 (114 dB, 24-Bit, 192 kHz, 8-Channel D/A Converter with DSD Support)
 110  *    SPDIF Out control switches between Mic in and SPDIF out.
 111  *    No sound out or mic input working yet.
 112  *
 113  *  GENERAL INFO:
 114  *    Model: SB0413
 115  *    P17 Chip: CA0106-DAT
 116  *    AC97 Codec: None.
 117  *    ADC: Unknown
 118  *    DAC: Unknown
 119  *    Trying to handle it like the SB0410.
 120  *
 121  *  This code was initially based on code from ALSA's emu10k1x.c which is:
 122  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
 123  */
 124 #include <linux/delay.h>
 125 #include <linux/init.h>
 126 #include <linux/interrupt.h>
 127 #include <linux/pci.h>
 128 #include <linux/slab.h>
 129 #include <linux/module.h>
 130 #include <linux/dma-mapping.h>
 131 #include <sound/core.h>
 132 #include <sound/initval.h>
 133 #include <sound/pcm.h>
 134 #include <sound/ac97_codec.h>
 135 #include <sound/info.h>
 136
 137 MODULE_AUTHOR("James Courtier-Dutton <James@superbug.demon.co.uk>");
 138 MODULE_DESCRIPTION("CA0106");
 139 MODULE_LICENSE("GPL");
 140
 141 // module parameters (see "Module Parameters")
 142 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
 143 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
 144 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
 145 static uint subsystem[SNDRV_CARDS]; /* Force card subsystem model */
 146
 147 module_param_array(index, int, NULL, 0444);
 148 MODULE_PARM_DESC(index, "Index value for the CA0106 soundcard.");
 149 module_param_array(id, charp, NULL, 0444);
 150 MODULE_PARM_DESC(id, "ID string for the CA0106 soundcard.");
 151 module_param_array(enable, bool, NULL, 0444);
 152 MODULE_PARM_DESC(enable, "Enable the CA0106 soundcard.");
 153 module_param_array(subsystem, uint, NULL, 0444);
 154 MODULE_PARM_DESC(subsystem, "Force card subsystem model.");
 155
 156 #include "ca0106.h"
 157
 158 static const struct snd_ca0106_details ca0106_chip_details[] = {
 159          /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
 160          /* It is really just a normal SB Live 24bit. */
 161          /* Tested:
 162           * See ALSA bug#3251
 163           */
 164          { .serial = 0x10131102,
 165            .name   = "X-Fi Extreme Audio [SBxxxx]",
 166            .gpio_type = 1,
 167            .i2c_adc = 1 } ,
 168          /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
 169          /* It is really just a normal SB Live 24bit. */
 170          /*
 171           * CTRL:CA0111-WTLF
 172           * ADC: WM8775SEDS
 173           * DAC: CS4382-KQZ
 174           */
 175          /* Tested:
 176           * Playback on front, rear, center/lfe speakers
 177           * Capture from Mic in.
 178           * Not-Tested:
 179           * Capture from Line in.
 180           * Playback to digital out.
 181           */
 182          { .serial = 0x10121102,
 183            .name   = "X-Fi Extreme Audio [SB0790]",
 184            .gpio_type = 1,
 185            .i2c_adc = 1 } ,
 186          /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
 187          /* AudigyLS[SB0310] */
 188          { .serial = 0x10021102,
 189            .name   = "AudigyLS [SB0310]",
 190            .ac97   = 1 } ,
 191          /* Unknown AudigyLS that also says SB0310 on it */
 192          { .serial = 0x10051102,
 193            .name   = "AudigyLS [SB0310b]",
 194            .ac97   = 1 } ,
 195          /* New Sound Blaster Live! 7.1 24bit. This does not have an AC97. 53SB041000001 */
 196          { .serial = 0x10061102,
 197            .name   = "Live! 7.1 24bit [SB0410]",
 198            .gpio_type = 1,
 199            .i2c_adc = 1 } ,
 200          /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
 201          { .serial = 0x10071102,
 202            .name   = "Live! 7.1 24bit [SB0413]",
 203            .gpio_type = 1,
 204            .i2c_adc = 1 } ,
 205          /* New Audigy SE. Has a different DAC. */
 206          /* SB0570:
 207           * CTRL:CA0106-DAT
 208           * ADC: WM8775EDS
 209           * DAC: WM8768GEDS
 210           */
 211          { .serial = 0x100a1102,
 212            .name   = "Audigy SE [SB0570]",
 213            .gpio_type = 1,
 214            .i2c_adc = 1,
 215            .spi_dac = 0x4021 } ,
 216          /* New Audigy LS. Has a different DAC. */
 217          /* SB0570:
 218           * CTRL:CA0106-DAT
 219           * ADC: WM8775EDS
 220           * DAC: WM8768GEDS
 221           */
 222          { .serial = 0x10111102,
 223            .name   = "Audigy SE OEM [SB0570a]",
 224            .gpio_type = 1,
 225            .i2c_adc = 1,
 226            .spi_dac = 0x4021 } ,
 227         /* Sound Blaster 5.1vx
 228          * Tested: Playback on front, rear, center/lfe speakers
 229          * Not-Tested: Capture
 230          */
 231         { .serial = 0x10041102,
 232           .name   = "Sound Blaster 5.1vx [SB1070]",
 233           .gpio_type = 1,
 234           .i2c_adc = 0,
 235           .spi_dac = 0x0124
 236          } ,
 237          /* MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97 */
 238          /* SB0438
 239           * CTRL:CA0106-DAT
 240           * ADC: WM8775SEDS
 241           * DAC: CS4382-KQZ
 242           */
 243          { .serial = 0x10091462,
 244            .name   = "MSI K8N Diamond MB [SB0438]",
 245            .gpio_type = 2,
 246            .i2c_adc = 1 } ,
 247          /* MSI K8N Diamond PLUS MB */
 248          { .serial = 0x10091102,
 249            .name   = "MSI K8N Diamond MB",
 250            .gpio_type = 2,
 251            .i2c_adc = 1,
 252            .spi_dac = 0x4021 } ,
 253         /* Giga-byte GA-G1975X mobo
 254          * Novell bnc#395807
 255          */
 256         /* FIXME: the GPIO and I2C setting aren't tested well */
 257         { .serial = 0x1458a006,
 258           .name = "Giga-byte GA-G1975X",
 259           .gpio_type = 1,
 260           .i2c_adc = 1 },
 261          /* Shuttle XPC SD31P which has an onboard Creative Labs
 262           * Sound Blaster Live! 24-bit EAX
 263           * high-definition 7.1 audio processor".
 264           * Added using info from andrewvegan in alsa bug #1298
 265           */
 266          { .serial = 0x30381297,
 267            .name   = "Shuttle XPC SD31P [SD31P]",
 268            .gpio_type = 1,
 269            .i2c_adc = 1 } ,
 270         /* Shuttle XPC SD11G5 which has an onboard Creative Labs
 271          * Sound Blaster Live! 24-bit EAX
 272          * high-definition 7.1 audio processor".
 273          * Fixes ALSA bug#1600
 274          */
 275         { .serial = 0x30411297,
 276           .name = "Shuttle XPC SD11G5 [SD11G5]",
 277           .gpio_type = 1,
 278           .i2c_adc = 1 } ,
 279          { .serial = 0,
 280            .name   = "AudigyLS [Unknown]" }
 281 };
 282
 283 /* hardware definition */
 284 static const struct snd_pcm_hardware snd_ca0106_playback_hw = {
 285         .info =                 SNDRV_PCM_INFO_MMAP |
 286                                 SNDRV_PCM_INFO_INTERLEAVED |
 287                                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 288                                 SNDRV_PCM_INFO_MMAP_VALID |
 289                                 SNDRV_PCM_INFO_SYNC_START,
 290         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
 291         .rates =                (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |
 292                                  SNDRV_PCM_RATE_192000),
 293         .rate_min =             48000,
 294         .rate_max =             192000,
 295         .channels_min =         2,  //1,
 296         .channels_max =         2,  //6,
 297         .buffer_bytes_max =     ((65536 - 64) * 8),
 298         .period_bytes_min =     64,
 299         .period_bytes_max =     (65536 - 64),
 300         .periods_min =          2,
 301         .periods_max =          8,
 302         .fifo_size =            0,
 303 };
 304
 305 static const struct snd_pcm_hardware snd_ca0106_capture_hw = {
 306         .info =                 (SNDRV_PCM_INFO_MMAP |
 307                                  SNDRV_PCM_INFO_INTERLEAVED |
 308                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 309                                  SNDRV_PCM_INFO_MMAP_VALID),
 310         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
 311 #if 0 /* FIXME: looks like 44.1kHz capture causes noisy output on 48kHz */
 312         .rates =                (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
 313                                  SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
 314         .rate_min =             44100,
 315 #else
 316         .rates =                (SNDRV_PCM_RATE_48000 |
 317                                  SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
 318         .rate_min =             48000,
 319 #endif /* FIXME */
 320         .rate_max =             192000,
 321         .channels_min =         2,
 322         .channels_max =         2,
 323         .buffer_bytes_max =     65536 - 128,
 324         .period_bytes_min =     64,
 325         .period_bytes_max =     32768 - 64,
 326         .periods_min =          2,
 327         .periods_max =          2,
 328         .fifo_size =            0,
 329 };
 330
 331 unsigned int snd_ca0106_ptr_read(struct snd_ca0106 * emu,
 332                                           unsigned int reg,
 333                                           unsigned int chn)
 334 {
 335         unsigned long flags;
 336         unsigned int regptr, val;
 337
 338         regptr = (reg << 16) | chn;
 339
 340         spin_lock_irqsave(&emu->emu_lock, flags);
 341         outl(regptr, emu->port + PTR);
 342         val = inl(emu->port + DATA);
 343         spin_unlock_irqrestore(&emu->emu_lock, flags);
 344         return val;
 345 }
 346
 347 void snd_ca0106_ptr_write(struct snd_ca0106 *emu,
 348                                    unsigned int reg,
 349                                    unsigned int chn,
 350                                    unsigned int data)
 351 {
 352         unsigned int regptr;
 353         unsigned long flags;
 354
 355         regptr = (reg << 16) | chn;
 356
 357         spin_lock_irqsave(&emu->emu_lock, flags);
 358         outl(regptr, emu->port + PTR);
 359         outl(data, emu->port + DATA);
 360         spin_unlock_irqrestore(&emu->emu_lock, flags);
 361 }
 362
 363 int snd_ca0106_spi_write(struct snd_ca0106 * emu,
 364                                    unsigned int data)
 365 {
 366         unsigned int reset, set;
 367         unsigned int reg, tmp;
 368         int n, result;
 369         reg = SPI;
 370         if (data > 0xffff) /* Only 16bit values allowed */
 371                 return 1;
 372         tmp = snd_ca0106_ptr_read(emu, reg, 0);
 373         reset = (tmp & ~0x3ffff) | 0x20000; /* Set xxx20000 */
 374         set = reset | 0x10000; /* Set xxx1xxxx */
 375         snd_ca0106_ptr_write(emu, reg, 0, reset | data);
 376         tmp = snd_ca0106_ptr_read(emu, reg, 0); /* write post */
 377         snd_ca0106_ptr_write(emu, reg, 0, set | data);
 378         result = 1;
 379         /* Wait for status bit to return to 0 */
 380         for (n = 0; n < 100; n++) {
 381                 udelay(10);
 382                 tmp = snd_ca0106_ptr_read(emu, reg, 0);
 383                 if (!(tmp & 0x10000)) {
 384                         result = 0;
 385                         break;
 386                 }
 387         }
 388         if (result) /* Timed out */
 389                 return 1;
 390         snd_ca0106_ptr_write(emu, reg, 0, reset | data);
 391         tmp = snd_ca0106_ptr_read(emu, reg, 0); /* Write post */
 392         return 0;
 393 }
 394
 395 /* The ADC does not support i2c read, so only write is implemented */
 396 int snd_ca0106_i2c_write(struct snd_ca0106 *emu,
 397                                 u32 reg,
 398                                 u32 value)
 399 {
 400         u32 tmp;
 401         int timeout = 0;
 402         int status;
 403         int retry;
 404         if ((reg > 0x7f) || (value > 0x1ff)) {
 405                 dev_err(emu->card->dev, "i2c_write: invalid values.\n");
 406                 return -EINVAL;
 407         }
 408
 409         tmp = reg << 25 | value << 16;
 410         /*
 411         dev_dbg(emu->card->dev, "I2C-write:reg=0x%x, value=0x%x\n", reg, value);
 412         */
 413         /* Not sure what this I2C channel controls. */
 414         /* snd_ca0106_ptr_write(emu, I2C_D0, 0, tmp); */
 415
 416         /* This controls the I2C connected to the WM8775 ADC Codec */
 417         snd_ca0106_ptr_write(emu, I2C_D1, 0, tmp);
 418
 419         for (retry = 0; retry < 10; retry++) {
 420                 /* Send the data to i2c */
 421                 //tmp = snd_ca0106_ptr_read(emu, I2C_A, 0);
 422                 //tmp = tmp & ~(I2C_A_ADC_READ|I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD_MASK);
 423                 tmp = 0;
 424                 tmp = tmp | (I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD);
 425                 snd_ca0106_ptr_write(emu, I2C_A, 0, tmp);
 426
 427                 /* Wait till the transaction ends */
 428                 while (1) {
 429                         status = snd_ca0106_ptr_read(emu, I2C_A, 0);
 430                         /*dev_dbg(emu->card->dev, "I2C:status=0x%x\n", status);*/
 431                         timeout++;
 432                         if ((status & I2C_A_ADC_START) == 0)
 433                                 break;
 434
 435                         if (timeout > 1000)
 436                                 break;
 437                 }
 438                 //Read back and see if the transaction is successful
 439                 if ((status & I2C_A_ADC_ABORT) == 0)
 440                         break;
 441         }
 442
 443         if (retry == 10) {
 444                 dev_err(emu->card->dev, "Writing to ADC failed!\n");
 445                 return -EINVAL;
 446         }
 447
 448         return 0;
 449 }
 450
 451
 452 static void snd_ca0106_intr_enable(struct snd_ca0106 *emu, unsigned int intrenb)
 453 {
 454         unsigned long flags;
 455         unsigned int intr_enable;
 456
 457         spin_lock_irqsave(&emu->emu_lock, flags);
 458         intr_enable = inl(emu->port + INTE) | intrenb;
 459         outl(intr_enable, emu->port + INTE);
 460         spin_unlock_irqrestore(&emu->emu_lock, flags);
 461 }
 462
 463 static void snd_ca0106_intr_disable(struct snd_ca0106 *emu, unsigned int intrenb)
 464 {
 465         unsigned long flags;
 466         unsigned int intr_enable;
 467
 468         spin_lock_irqsave(&emu->emu_lock, flags);
 469         intr_enable = inl(emu->port + INTE) & ~intrenb;
 470         outl(intr_enable, emu->port + INTE);
 471         spin_unlock_irqrestore(&emu->emu_lock, flags);
 472 }
 473
 474
 475 static void snd_ca0106_pcm_free_substream(struct snd_pcm_runtime *runtime)
 476 {
 477         kfree(runtime->private_data);
 478 }
 479
 480 static const int spi_dacd_reg[] = {
 481         SPI_DACD0_REG,
 482         SPI_DACD1_REG,
 483         SPI_DACD2_REG,
 484         0,
 485         SPI_DACD4_REG,
 486 };
 487 static const int spi_dacd_bit[] = {
 488         SPI_DACD0_BIT,
 489         SPI_DACD1_BIT,
 490         SPI_DACD2_BIT,
 491         0,
 492         SPI_DACD4_BIT,
 493 };
 494
 495 static void restore_spdif_bits(struct snd_ca0106 *chip, int idx)
 496 {
 497         if (chip->spdif_str_bits[idx] != chip->spdif_bits[idx]) {
 498                 chip->spdif_str_bits[idx] = chip->spdif_bits[idx];
 499                 snd_ca0106_ptr_write(chip, SPCS0 + idx, 0,
 500                                      chip->spdif_str_bits[idx]);
 501         }
 502 }
 503
 504 static int snd_ca0106_channel_dac(struct snd_ca0106 *chip,
 505                                   const struct snd_ca0106_details *details,
 506                                   int channel_id)
 507 {
 508         switch (channel_id) {
 509         case PCM_FRONT_CHANNEL:
 510                 return (details->spi_dac & 0xf000) >> (4 * 3);
 511         case PCM_REAR_CHANNEL:
 512                 return (details->spi_dac & 0x0f00) >> (4 * 2);
 513         case PCM_CENTER_LFE_CHANNEL:
 514                 return (details->spi_dac & 0x00f0) >> (4 * 1);
 515         case PCM_UNKNOWN_CHANNEL:
 516                 return (details->spi_dac & 0x000f) >> (4 * 0);
 517         default:
 518                 dev_dbg(chip->card->dev, "ca0106: unknown channel_id %d\n",
 519                            channel_id);
 520         }
 521         return 0;
 522 }
 523
 524 static int snd_ca0106_pcm_power_dac(struct snd_ca0106 *chip, int channel_id,
 525                                     int power)
 526 {
 527         if (chip->details->spi_dac) {
 528                 const int dac = snd_ca0106_channel_dac(chip, chip->details,
 529                                                        channel_id);
 530                 const int reg = spi_dacd_reg[dac];
 531                 const int bit = spi_dacd_bit[dac];
 532
 533                 if (power)
 534                         /* Power up */
 535                         chip->spi_dac_reg[reg] &= ~bit;
 536                 else
 537                         /* Power down */
 538                         chip->spi_dac_reg[reg] |= bit;
 539                 if (snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]) != 0)
 540                         return -ENXIO;
 541         }
 542         return 0;
 543 }
 544
 545 /* open_playback callback */
 546 static int snd_ca0106_pcm_open_playback_channel(struct snd_pcm_substream *substream,
 547                                                 int channel_id)
 548 {
 549         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 550         struct snd_ca0106_channel *channel = &(chip->playback_channels[channel_id]);
 551         struct snd_ca0106_pcm *epcm;
 552         struct snd_pcm_runtime *runtime = substream->runtime;
 553         int err;
 554
 555         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 556
 557         if (epcm == NULL)
 558                 return -ENOMEM;
 559         epcm->emu = chip;
 560         epcm->substream = substream;
 561         epcm->channel_id=channel_id;
 562
 563         runtime->private_data = epcm;
 564         runtime->private_free = snd_ca0106_pcm_free_substream;
 565
 566         runtime->hw = snd_ca0106_playback_hw;
 567
 568         channel->emu = chip;
 569         channel->number = channel_id;
 570
 571         channel->use = 1;
 572         /*
 573         dev_dbg(chip->card->dev, "open:channel_id=%d, chip=%p, channel=%p\n",
 574                channel_id, chip, channel);
 575         */
 576         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 577         channel->epcm = epcm;
 578         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 579                 return err;
 580         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 581                 return err;
 582         snd_pcm_set_sync(substream);
 583
 584         /* Front channel dac should already be on */
 585         if (channel_id != PCM_FRONT_CHANNEL) {
 586                 err = snd_ca0106_pcm_power_dac(chip, channel_id, 1);
 587                 if (err < 0)
 588                         return err;
 589         }
 590
 591         restore_spdif_bits(chip, channel_id);
 592
 593         return 0;
 594 }
 595
 596 /* close callback */
 597 static int snd_ca0106_pcm_close_playback(struct snd_pcm_substream *substream)
 598 {
 599         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 600         struct snd_pcm_runtime *runtime = substream->runtime;
 601         struct snd_ca0106_pcm *epcm = runtime->private_data;
 602         chip->playback_channels[epcm->channel_id].use = 0;
 603
 604         restore_spdif_bits(chip, epcm->channel_id);
 605
 606         /* Front channel dac should stay on */
 607         if (epcm->channel_id != PCM_FRONT_CHANNEL) {
 608                 int err;
 609                 err = snd_ca0106_pcm_power_dac(chip, epcm->channel_id, 0);
 610                 if (err < 0)
 611                         return err;
 612         }
 613
 614         /* FIXME: maybe zero others */
 615         return 0;
 616 }
 617
 618 static int snd_ca0106_pcm_open_playback_front(struct snd_pcm_substream *substream)
 619 {
 620         return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
 621 }
 622
 623 static int snd_ca0106_pcm_open_playback_center_lfe(struct snd_pcm_substream *substream)
 624 {
 625         return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
 626 }
 627
 628 static int snd_ca0106_pcm_open_playback_unknown(struct snd_pcm_substream *substream)
 629 {
 630         return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
 631 }
 632
 633 static int snd_ca0106_pcm_open_playback_rear(struct snd_pcm_substream *substream)
 634 {
 635         return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
 636 }
 637
 638 /* open_capture callback */
 639 static int snd_ca0106_pcm_open_capture_channel(struct snd_pcm_substream *substream,
 640                                                int channel_id)
 641 {
 642         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 643         struct snd_ca0106_channel *channel = &(chip->capture_channels[channel_id]);
 644         struct snd_ca0106_pcm *epcm;
 645         struct snd_pcm_runtime *runtime = substream->runtime;
 646         int err;
 647
 648         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 649         if (!epcm)
 650                 return -ENOMEM;
 651
 652         epcm->emu = chip;
 653         epcm->substream = substream;
 654         epcm->channel_id=channel_id;
 655
 656         runtime->private_data = epcm;
 657         runtime->private_free = snd_ca0106_pcm_free_substream;
 658
 659         runtime->hw = snd_ca0106_capture_hw;
 660
 661         channel->emu = chip;
 662         channel->number = channel_id;
 663
 664         channel->use = 1;
 665         /*
 666         dev_dbg(chip->card->dev, "open:channel_id=%d, chip=%p, channel=%p\n",
 667                channel_id, chip, channel);
 668         */
 669         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 670         channel->epcm = epcm;
 671         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 672                 return err;
 673         //snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
 674         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 675                 return err;
 676         return 0;
 677 }
 678
 679 /* close callback */
 680 static int snd_ca0106_pcm_close_capture(struct snd_pcm_substream *substream)
 681 {
 682         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 683         struct snd_pcm_runtime *runtime = substream->runtime;
 684         struct snd_ca0106_pcm *epcm = runtime->private_data;
 685         chip->capture_channels[epcm->channel_id].use = 0;
 686         /* FIXME: maybe zero others */
 687         return 0;
 688 }
 689
 690 static int snd_ca0106_pcm_open_0_capture(struct snd_pcm_substream *substream)
 691 {
 692         return snd_ca0106_pcm_open_capture_channel(substream, 0);
 693 }
 694
 695 static int snd_ca0106_pcm_open_1_capture(struct snd_pcm_substream *substream)
 696 {
 697         return snd_ca0106_pcm_open_capture_channel(substream, 1);
 698 }
 699
 700 static int snd_ca0106_pcm_open_2_capture(struct snd_pcm_substream *substream)
 701 {
 702         return snd_ca0106_pcm_open_capture_channel(substream, 2);
 703 }
 704
 705 static int snd_ca0106_pcm_open_3_capture(struct snd_pcm_substream *substream)
 706 {
 707         return snd_ca0106_pcm_open_capture_channel(substream, 3);
 708 }
 709
 710 /* prepare playback callback */
 711 static int snd_ca0106_pcm_prepare_playback(struct snd_pcm_substream *substream)
 712 {
 713         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 714         struct snd_pcm_runtime *runtime = substream->runtime;
 715         struct snd_ca0106_pcm *epcm = runtime->private_data;
 716         int channel = epcm->channel_id;
 717         u32 *table_base = (u32 *)(emu->buffer.area+(8*16*channel));
 718         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
 719         u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
 720         u32 hcfg_set = 0x00000000;
 721         u32 hcfg;
 722         u32 reg40_mask = 0x30000 << (channel<<1);
 723         u32 reg40_set = 0;
 724         u32 reg40;
 725         /* FIXME: Depending on mixer selection of SPDIF out or not, select the spdif rate or the DAC rate. */
 726         u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
 727         u32 reg71_set = 0;
 728         u32 reg71;
 729         int i;
 730
 731 #if 0 /* debug */
 732         dev_dbg(emu->card->dev,
 733                    "prepare:channel_number=%d, rate=%d, format=0x%x, "
 734                    "channels=%d, buffer_size=%ld, period_size=%ld, "
 735                    "periods=%u, frames_to_bytes=%d\n",
 736                    channel, runtime->rate, runtime->format,
 737                    runtime->channels, runtime->buffer_size,
 738                    runtime->period_size, runtime->periods,
 739                    frames_to_bytes(runtime, 1));
 740         dev_dbg(emu->card->dev,
 741                 "dma_addr=%x, dma_area=%p, table_base=%p\n",
 742                    runtime->dma_addr, runtime->dma_area, table_base);
 743         dev_dbg(emu->card->dev,
 744                 "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
 745                    emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 746 #endif /* debug */
 747         /* Rate can be set per channel. */
 748         /* reg40 control host to fifo */
 749         /* reg71 controls DAC rate. */
 750         switch (runtime->rate) {
 751         case 44100:
 752                 reg40_set = 0x10000 << (channel<<1);
 753                 reg71_set = 0x01010000;
 754                 break;
 755         case 48000:
 756                 reg40_set = 0;
 757                 reg71_set = 0;
 758                 break;
 759         case 96000:
 760                 reg40_set = 0x20000 << (channel<<1);
 761                 reg71_set = 0x02020000;
 762                 break;
 763         case 192000:
 764                 reg40_set = 0x30000 << (channel<<1);
 765                 reg71_set = 0x03030000;
 766                 break;
 767         default:
 768                 reg40_set = 0;
 769                 reg71_set = 0;
 770                 break;
 771         }
 772         /* Format is a global setting */
 773         /* FIXME: Only let the first channel accessed set this. */
 774         switch (runtime->format) {
 775         case SNDRV_PCM_FORMAT_S16_LE:
 776                 hcfg_set = 0;
 777                 break;
 778         case SNDRV_PCM_FORMAT_S32_LE:
 779                 hcfg_set = HCFG_PLAYBACK_S32_LE;
 780                 break;
 781         default:
 782                 hcfg_set = 0;
 783                 break;
 784         }
 785         hcfg = inl(emu->port + HCFG) ;
 786         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 787         outl(hcfg, emu->port + HCFG);
 788         reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
 789         reg40 = (reg40 & ~reg40_mask) | reg40_set;
 790         snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
 791         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 792         reg71 = (reg71 & ~reg71_mask) | reg71_set;
 793         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 794
 795         /* FIXME: Check emu->buffer.size before actually writing to it. */
 796         for(i=0; i < runtime->periods; i++) {
 797                 table_base[i*2] = runtime->dma_addr + (i * period_size_bytes);
 798                 table_base[i*2+1] = period_size_bytes << 16;
 799         }
 800
 801         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
 802         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
 803         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
 804         snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
 805         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
 806         /* FIXME  test what 0 bytes does. */
 807         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
 808         snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
 809         snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
 810         snd_ca0106_ptr_write(emu, 0x08, channel, 0);
 811         snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
 812 #if 0
 813         snd_ca0106_ptr_write(emu, SPCS0, 0,
 814                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
 815                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
 816                                SPCS_GENERATIONSTATUS | 0x00001200 |
 817                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
 818 #endif
 819
 820         return 0;
 821 }
 822
 823 /* prepare capture callback */
 824 static int snd_ca0106_pcm_prepare_capture(struct snd_pcm_substream *substream)
 825 {
 826         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 827         struct snd_pcm_runtime *runtime = substream->runtime;
 828         struct snd_ca0106_pcm *epcm = runtime->private_data;
 829         int channel = epcm->channel_id;
 830         u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
 831         u32 hcfg_set = 0x00000000;
 832         u32 hcfg;
 833         u32 over_sampling=0x2;
 834         u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
 835         u32 reg71_set = 0;
 836         u32 reg71;
 837
 838 #if 0 /* debug */
 839         dev_dbg(emu->card->dev,
 840                    "prepare:channel_number=%d, rate=%d, format=0x%x, "
 841                    "channels=%d, buffer_size=%ld, period_size=%ld, "
 842                    "periods=%u, frames_to_bytes=%d\n",
 843                    channel, runtime->rate, runtime->format,
 844                    runtime->channels, runtime->buffer_size,
 845                    runtime->period_size, runtime->periods,
 846                    frames_to_bytes(runtime, 1));
 847         dev_dbg(emu->card->dev,
 848                 "dma_addr=%x, dma_area=%p, table_base=%p\n",
 849                    runtime->dma_addr, runtime->dma_area, table_base);
 850         dev_dbg(emu->card->dev,
 851                 "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
 852                    emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 853 #endif /* debug */
 854         /* reg71 controls ADC rate. */
 855         switch (runtime->rate) {
 856         case 44100:
 857                 reg71_set = 0x00004000;
 858                 break;
 859         case 48000:
 860                 reg71_set = 0;
 861                 break;
 862         case 96000:
 863                 reg71_set = 0x00008000;
 864                 over_sampling=0xa;
 865                 break;
 866         case 192000:
 867                 reg71_set = 0x0000c000;
 868                 over_sampling=0xa;
 869                 break;
 870         default:
 871                 reg71_set = 0;
 872                 break;
 873         }
 874         /* Format is a global setting */
 875         /* FIXME: Only let the first channel accessed set this. */
 876         switch (runtime->format) {
 877         case SNDRV_PCM_FORMAT_S16_LE:
 878                 hcfg_set = 0;
 879                 break;
 880         case SNDRV_PCM_FORMAT_S32_LE:
 881                 hcfg_set = HCFG_CAPTURE_S32_LE;
 882                 break;
 883         default:
 884                 hcfg_set = 0;
 885                 break;
 886         }
 887         hcfg = inl(emu->port + HCFG) ;
 888         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 889         outl(hcfg, emu->port + HCFG);
 890         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 891         reg71 = (reg71 & ~reg71_mask) | reg71_set;
 892         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 893         if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
 894                 snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
 895         }
 896
 897
 898         /*
 899         dev_dbg(emu->card->dev,
 900                "prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, "
 901                "buffer_size=%ld, period_size=%ld, frames_to_bytes=%d\n",
 902                channel, runtime->rate, runtime->format, runtime->channels,
 903                runtime->buffer_size, runtime->period_size,
 904                frames_to_bytes(runtime, 1));
 905         */
 906         snd_ca0106_ptr_write(emu, 0x13, channel, 0);
 907         snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
 908         snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
 909         snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
 910
 911         return 0;
 912 }
 913
 914 /* trigger_playback callback */
 915 static int snd_ca0106_pcm_trigger_playback(struct snd_pcm_substream *substream,
 916                                     int cmd)
 917 {
 918         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 919         struct snd_pcm_runtime *runtime;
 920         struct snd_ca0106_pcm *epcm;
 921         int channel;
 922         int result = 0;
 923         struct snd_pcm_substream *s;
 924         u32 basic = 0;
 925         u32 extended = 0;
 926         u32 bits;
 927         int running = 0;
 928
 929         switch (cmd) {
 930         case SNDRV_PCM_TRIGGER_START:
 931         case SNDRV_PCM_TRIGGER_RESUME:
 932                 running = 1;
 933                 break;
 934         case SNDRV_PCM_TRIGGER_STOP:
 935         case SNDRV_PCM_TRIGGER_SUSPEND:
 936         default:
 937                 running = 0;
 938                 break;
 939         }
 940         snd_pcm_group_for_each_entry(s, substream) {
 941                 if (snd_pcm_substream_chip(s) != emu ||
 942                     s->stream != SNDRV_PCM_STREAM_PLAYBACK)
 943                         continue;
 944                 runtime = s->runtime;
 945                 epcm = runtime->private_data;
 946                 channel = epcm->channel_id;
 947                 /* dev_dbg(emu->card->dev, "channel=%d\n", channel); */
 948                 epcm->running = running;
 949                 basic |= (0x1 << channel);
 950                 extended |= (0x10 << channel);
 951                 snd_pcm_trigger_done(s, substream);
 952         }
 953         /* dev_dbg(emu->card->dev, "basic=0x%x, extended=0x%x\n",basic, extended); */
 954
 955         switch (cmd) {
 956         case SNDRV_PCM_TRIGGER_START:
 957         case SNDRV_PCM_TRIGGER_RESUME:
 958                 bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
 959                 bits |= extended;
 960                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
 961                 bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
 962                 bits |= basic;
 963                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
 964                 break;
 965         case SNDRV_PCM_TRIGGER_STOP:
 966         case SNDRV_PCM_TRIGGER_SUSPEND:
 967                 bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
 968                 bits &= ~basic;
 969                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
 970                 bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
 971                 bits &= ~extended;
 972                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
 973                 break;
 974         default:
 975                 result = -EINVAL;
 976                 break;
 977         }
 978         return result;
 979 }
 980
 981 /* trigger_capture callback */
 982 static int snd_ca0106_pcm_trigger_capture(struct snd_pcm_substream *substream,
 983                                     int cmd)
 984 {
 985         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 986         struct snd_pcm_runtime *runtime = substream->runtime;
 987         struct snd_ca0106_pcm *epcm = runtime->private_data;
 988         int channel = epcm->channel_id;
 989         int result = 0;
 990
 991         switch (cmd) {
 992         case SNDRV_PCM_TRIGGER_START:
 993                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
 994                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
 995                 epcm->running = 1;
 996                 break;
 997         case SNDRV_PCM_TRIGGER_STOP:
 998                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
 999                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
1000                 epcm->running = 0;
1001                 break;
1002         default:
1003                 result = -EINVAL;
1004                 break;
1005         }
1006         return result;
1007 }
1008
1009 /* pointer_playback callback */
1010 static snd_pcm_uframes_t
1011 snd_ca0106_pcm_pointer_playback(struct snd_pcm_substream *substream)
1012 {
1013         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1014         struct snd_pcm_runtime *runtime = substream->runtime;
1015         struct snd_ca0106_pcm *epcm = runtime->private_data;
1016         unsigned int ptr, prev_ptr;
1017         int channel = epcm->channel_id;
1018         int timeout = 10;
1019
1020         if (!epcm->running)
1021                 return 0;
1022
1023         prev_ptr = -1;
1024         do {
1025                 ptr = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
1026                 ptr = (ptr >> 3) * runtime->period_size;
1027                 ptr += bytes_to_frames(runtime,
1028                         snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel));
1029                 if (ptr >= runtime->buffer_size)
1030                         ptr -= runtime->buffer_size;
1031                 if (prev_ptr == ptr)
1032                         return ptr;
1033                 prev_ptr = ptr;
1034         } while (--timeout);
1035         dev_warn(emu->card->dev, "ca0106: unstable DMA pointer!\n");
1036         return 0;
1037 }
1038
1039 /* pointer_capture callback */
1040 static snd_pcm_uframes_t
1041 snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream *substream)
1042 {
1043         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1044         struct snd_pcm_runtime *runtime = substream->runtime;
1045         struct snd_ca0106_pcm *epcm = runtime->private_data;
1046         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
1047         int channel = epcm->channel_id;
1048
1049         if (!epcm->running)
1050                 return 0;
1051
1052         ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
1053         ptr2 = bytes_to_frames(runtime, ptr1);
1054         ptr=ptr2;
1055         if (ptr >= runtime->buffer_size)
1056                 ptr -= runtime->buffer_size;
1057         /*
1058         dev_dbg(emu->card->dev, "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
1059                "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
1060                ptr1, ptr2, ptr, (int)runtime->buffer_size,
1061                (int)runtime->period_size, (int)runtime->frame_bits,
1062                (int)runtime->rate);
1063         */
1064         return ptr;
1065 }
1066
1067 /* operators */
1068 static const struct snd_pcm_ops snd_ca0106_playback_front_ops = {
1069         .open =        snd_ca0106_pcm_open_playback_front,
1070         .close =       snd_ca0106_pcm_close_playback,
1071         .prepare =     snd_ca0106_pcm_prepare_playback,
1072         .trigger =     snd_ca0106_pcm_trigger_playback,
1073         .pointer =     snd_ca0106_pcm_pointer_playback,
1074 };
1075
1076 static const struct snd_pcm_ops snd_ca0106_capture_0_ops = {
1077         .open =        snd_ca0106_pcm_open_0_capture,
1078         .close =       snd_ca0106_pcm_close_capture,
1079         .prepare =     snd_ca0106_pcm_prepare_capture,
1080         .trigger =     snd_ca0106_pcm_trigger_capture,
1081         .pointer =     snd_ca0106_pcm_pointer_capture,
1082 };
1083
1084 static const struct snd_pcm_ops snd_ca0106_capture_1_ops = {
1085         .open =        snd_ca0106_pcm_open_1_capture,
1086         .close =       snd_ca0106_pcm_close_capture,
1087         .prepare =     snd_ca0106_pcm_prepare_capture,
1088         .trigger =     snd_ca0106_pcm_trigger_capture,
1089         .pointer =     snd_ca0106_pcm_pointer_capture,
1090 };
1091
1092 static const struct snd_pcm_ops snd_ca0106_capture_2_ops = {
1093         .open =        snd_ca0106_pcm_open_2_capture,
1094         .close =       snd_ca0106_pcm_close_capture,
1095         .prepare =     snd_ca0106_pcm_prepare_capture,
1096         .trigger =     snd_ca0106_pcm_trigger_capture,
1097         .pointer =     snd_ca0106_pcm_pointer_capture,
1098 };
1099
1100 static const struct snd_pcm_ops snd_ca0106_capture_3_ops = {
1101         .open =        snd_ca0106_pcm_open_3_capture,
1102         .close =       snd_ca0106_pcm_close_capture,
1103         .prepare =     snd_ca0106_pcm_prepare_capture,
1104         .trigger =     snd_ca0106_pcm_trigger_capture,
1105         .pointer =     snd_ca0106_pcm_pointer_capture,
1106 };
1107
1108 static const struct snd_pcm_ops snd_ca0106_playback_center_lfe_ops = {
1109         .open =         snd_ca0106_pcm_open_playback_center_lfe,
1110         .close =        snd_ca0106_pcm_close_playback,
1111         .prepare =      snd_ca0106_pcm_prepare_playback,
1112         .trigger =      snd_ca0106_pcm_trigger_playback,
1113         .pointer =      snd_ca0106_pcm_pointer_playback,
1114 };
1115
1116 static const struct snd_pcm_ops snd_ca0106_playback_unknown_ops = {
1117         .open =         snd_ca0106_pcm_open_playback_unknown,
1118         .close =        snd_ca0106_pcm_close_playback,
1119         .prepare =      snd_ca0106_pcm_prepare_playback,
1120         .trigger =      snd_ca0106_pcm_trigger_playback,
1121         .pointer =      snd_ca0106_pcm_pointer_playback,
1122 };
1123
1124 static const struct snd_pcm_ops snd_ca0106_playback_rear_ops = {
1125         .open =         snd_ca0106_pcm_open_playback_rear,
1126         .close =        snd_ca0106_pcm_close_playback,
1127         .prepare =      snd_ca0106_pcm_prepare_playback,
1128         .trigger =      snd_ca0106_pcm_trigger_playback,
1129         .pointer =      snd_ca0106_pcm_pointer_playback,
1130 };
1131
1132
1133 static unsigned short snd_ca0106_ac97_read(struct snd_ac97 *ac97,
1134                                              unsigned short reg)
1135 {
1136         struct snd_ca0106 *emu = ac97->private_data;
1137         unsigned long flags;
1138         unsigned short val;
1139
1140         spin_lock_irqsave(&emu->emu_lock, flags);
1141         outb(reg, emu->port + AC97ADDRESS);
1142         val = inw(emu->port + AC97DATA);
1143         spin_unlock_irqrestore(&emu->emu_lock, flags);
1144         return val;
1145 }
1146
1147 static void snd_ca0106_ac97_write(struct snd_ac97 *ac97,
1148                                     unsigned short reg, unsigned short val)
1149 {
1150         struct snd_ca0106 *emu = ac97->private_data;
1151         unsigned long flags;
1152
1153         spin_lock_irqsave(&emu->emu_lock, flags);
1154         outb(reg, emu->port + AC97ADDRESS);
1155         outw(val, emu->port + AC97DATA);
1156         spin_unlock_irqrestore(&emu->emu_lock, flags);
1157 }
1158
1159 static int snd_ca0106_ac97(struct snd_ca0106 *chip)
1160 {
1161         struct snd_ac97_bus *pbus;
1162         struct snd_ac97_template ac97;
1163         int err;
1164         static const struct snd_ac97_bus_ops ops = {
1165                 .write = snd_ca0106_ac97_write,
1166                 .read = snd_ca0106_ac97_read,
1167         };
1168
1169         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
1170                 return err;
1171         pbus->no_vra = 1; /* we don't need VRA */
1172
1173         memset(&ac97, 0, sizeof(ac97));
1174         ac97.private_data = chip;
1175         ac97.scaps = AC97_SCAP_NO_SPDIF;
1176         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1177 }
1178
1179 static void ca0106_stop_chip(struct snd_ca0106 *chip);
1180
1181 static int snd_ca0106_free(struct snd_ca0106 *chip)
1182 {
1183         if (chip->res_port != NULL) {
1184                 /* avoid access to already used hardware */
1185                 ca0106_stop_chip(chip);
1186         }
1187         if (chip->irq >= 0)
1188                 free_irq(chip->irq, chip);
1189         // release the data
1190 #if 1
1191         if (chip->buffer.area)
1192                 snd_dma_free_pages(&chip->buffer);
1193 #endif
1194
1195         // release the i/o port
1196         release_and_free_resource(chip->res_port);
1197
1198         pci_disable_device(chip->pci);
1199         kfree(chip);
1200         return 0;
1201 }
1202
1203 static int snd_ca0106_dev_free(struct snd_device *device)
1204 {
1205         struct snd_ca0106 *chip = device->device_data;
1206         return snd_ca0106_free(chip);
1207 }
1208
1209 static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
1210 {
1211         unsigned int status;
1212
1213         struct snd_ca0106 *chip = dev_id;
1214         int i;
1215         int mask;
1216         unsigned int stat76;
1217         struct snd_ca0106_channel *pchannel;
1218
1219         status = inl(chip->port + IPR);
1220         if (! status)
1221                 return IRQ_NONE;
1222
1223         stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1224         /*
1225         dev_dbg(emu->card->dev, "interrupt status = 0x%08x, stat76=0x%08x\n",
1226                    status, stat76);
1227         dev_dbg(emu->card->dev, "ptr=0x%08x\n",
1228                    snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1229         */
1230         mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1231         for(i = 0; i < 4; i++) {
1232                 pchannel = &(chip->playback_channels[i]);
1233                 if (stat76 & mask) {
1234 /* FIXME: Select the correct substream for period elapsed */
1235                         if(pchannel->use) {
1236                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1237                                 /* dev_dbg(emu->card->dev, "interrupt [%d] used\n", i); */
1238                         }
1239                 }
1240                 /*
1241                 dev_dbg(emu->card->dev, "channel=%p\n", pchannel);
1242                 dev_dbg(emu->card->dev, "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1243                 */
1244                 mask <<= 1;
1245         }
1246         mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1247         for(i = 0; i < 4; i++) {
1248                 pchannel = &(chip->capture_channels[i]);
1249                 if (stat76 & mask) {
1250 /* FIXME: Select the correct substream for period elapsed */
1251                         if(pchannel->use) {
1252                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1253                                 /* dev_dbg(emu->card->dev, "interrupt [%d] used\n", i); */
1254                         }
1255                 }
1256                 /*
1257                 dev_dbg(emu->card->dev, "channel=%p\n", pchannel);
1258                 dev_dbg(emu->card->dev, "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1259                 */
1260                 mask <<= 1;
1261         }
1262
1263         snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1264
1265         if (chip->midi.dev_id &&
1266             (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1267                 if (chip->midi.interrupt)
1268                         chip->midi.interrupt(&chip->midi, status);
1269                 else
1270                         chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1271         }
1272
1273         // acknowledge the interrupt if necessary
1274         outl(status, chip->port+IPR);
1275
1276         return IRQ_HANDLED;
1277 }
1278
1279 static const struct snd_pcm_chmap_elem surround_map[] = {
1280         { .channels = 2,
1281           .map = { SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
1282         { }
1283 };
1284
1285 static const struct snd_pcm_chmap_elem clfe_map[] = {
1286         { .channels = 2,
1287           .map = { SNDRV_CHMAP_FC, SNDRV_CHMAP_LFE } },
1288         { }
1289 };
1290
1291 static const struct snd_pcm_chmap_elem side_map[] = {
1292         { .channels = 2,
1293           .map = { SNDRV_CHMAP_SL, SNDRV_CHMAP_SR } },
1294         { }
1295 };
1296
1297 static int snd_ca0106_pcm(struct snd_ca0106 *emu, int device)
1298 {
1299         struct snd_pcm *pcm;
1300         struct snd_pcm_substream *substream;
1301         const struct snd_pcm_chmap_elem *map = NULL;
1302         int err;
1303
1304         err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm);
1305         if (err < 0)
1306                 return err;
1307
1308         pcm->private_data = emu;
1309
1310         switch (device) {
1311         case 0:
1312           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1313           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1314           map = snd_pcm_std_chmaps;
1315           break;
1316         case 1:
1317           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1318           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1319           map = surround_map;
1320           break;
1321         case 2:
1322           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1323           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1324           map = clfe_map;
1325           break;
1326         case 3:
1327           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1328           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1329           map = side_map;
1330           break;
1331         }
1332
1333         pcm->info_flags = 0;
1334         strcpy(pcm->name, "CA0106");
1335
1336         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
1337             substream;
1338             substream = substream->next) {
1339                 snd_pcm_set_managed_buffer(substream, SNDRV_DMA_TYPE_DEV,
1340                                            &emu->pci->dev,
1341                                            64*1024, 64*1024);
1342         }
1343
1344         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
1345               substream;
1346               substream = substream->next) {
1347                 snd_pcm_set_managed_buffer(substream, SNDRV_DMA_TYPE_DEV,
1348                                            &emu->pci->dev,
1349                                            64*1024, 64*1024);
1350         }
1351
1352         err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK, map, 2,
1353                                      1 << 2, NULL);
1354         if (err < 0)
1355                 return err;
1356
1357         emu->pcm[device] = pcm;
1358
1359         return 0;
1360 }
1361
1362 #define SPI_REG(reg, value)     (((reg) << SPI_REG_SHIFT) | (value))
1363 static const unsigned int spi_dac_init[] = {
1364         SPI_REG(SPI_LDA1_REG,   SPI_DA_BIT_0dB), /* 0dB dig. attenuation */
1365         SPI_REG(SPI_RDA1_REG,   SPI_DA_BIT_0dB),
1366         SPI_REG(SPI_PL_REG,     SPI_PL_BIT_L_L | SPI_PL_BIT_R_R | SPI_IZD_BIT),
1367         SPI_REG(SPI_FMT_REG,    SPI_FMT_BIT_I2S | SPI_IWL_BIT_24),
1368         SPI_REG(SPI_LDA2_REG,   SPI_DA_BIT_0dB),
1369         SPI_REG(SPI_RDA2_REG,   SPI_DA_BIT_0dB),
1370         SPI_REG(SPI_LDA3_REG,   SPI_DA_BIT_0dB),
1371         SPI_REG(SPI_RDA3_REG,   SPI_DA_BIT_0dB),
1372         SPI_REG(SPI_MASTDA_REG, SPI_DA_BIT_0dB),
1373         SPI_REG(9,              0x00),
1374         SPI_REG(SPI_MS_REG,     SPI_DACD0_BIT | SPI_DACD1_BIT | SPI_DACD2_BIT),
1375         SPI_REG(12,             0x00),
1376         SPI_REG(SPI_LDA4_REG,   SPI_DA_BIT_0dB),
1377         SPI_REG(SPI_RDA4_REG,   SPI_DA_BIT_0dB | SPI_DA_BIT_UPDATE),
1378         SPI_REG(SPI_DACD4_REG,  SPI_DACD4_BIT),
1379 };
1380
1381 static const unsigned int i2c_adc_init[][2] = {
1382         { 0x17, 0x00 }, /* Reset */
1383         { 0x07, 0x00 }, /* Timeout */
1384         { 0x0b, 0x22 },  /* Interface control */
1385         { 0x0c, 0x22 },  /* Master mode control */
1386         { 0x0d, 0x08 },  /* Powerdown control */
1387         { 0x0e, 0xcf },  /* Attenuation Left  0x01 = -103dB, 0xff = 24dB */
1388         { 0x0f, 0xcf },  /* Attenuation Right 0.5dB steps */
1389         { 0x10, 0x7b },  /* ALC Control 1 */
1390         { 0x11, 0x00 },  /* ALC Control 2 */
1391         { 0x12, 0x32 },  /* ALC Control 3 */
1392         { 0x13, 0x00 },  /* Noise gate control */
1393         { 0x14, 0xa6 },  /* Limiter control */
1394         { 0x15, ADC_MUX_LINEIN },  /* ADC Mixer control */
1395 };
1396
1397 static void ca0106_init_chip(struct snd_ca0106 *chip, int resume)
1398 {
1399         int ch;
1400         unsigned int def_bits;
1401
1402         outl(0, chip->port + INTE);
1403
1404         /*
1405          *  Init to 0x02109204 :
1406          *  Clock accuracy    = 0     (1000ppm)
1407          *  Sample Rate       = 2     (48kHz)
1408          *  Audio Channel     = 1     (Left of 2)
1409          *  Source Number     = 0     (Unspecified)
1410          *  Generation Status = 1     (Original for Cat Code 12)
1411          *  Cat Code          = 12    (Digital Signal Mixer)
1412          *  Mode              = 0     (Mode 0)
1413          *  Emphasis          = 0     (None)
1414          *  CP                = 1     (Copyright unasserted)
1415          *  AN                = 0     (Audio data)
1416          *  P                 = 0     (Consumer)
1417          */
1418         def_bits =
1419                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1420                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1421                 SPCS_GENERATIONSTATUS | 0x00001200 |
1422                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT;
1423         if (!resume) {
1424                 chip->spdif_str_bits[0] = chip->spdif_bits[0] = def_bits;
1425                 chip->spdif_str_bits[1] = chip->spdif_bits[1] = def_bits;
1426                 chip->spdif_str_bits[2] = chip->spdif_bits[2] = def_bits;
1427                 chip->spdif_str_bits[3] = chip->spdif_bits[3] = def_bits;
1428         }
1429         /* Only SPCS1 has been tested */
1430         snd_ca0106_ptr_write(chip, SPCS1, 0, chip->spdif_str_bits[1]);
1431         snd_ca0106_ptr_write(chip, SPCS0, 0, chip->spdif_str_bits[0]);
1432         snd_ca0106_ptr_write(chip, SPCS2, 0, chip->spdif_str_bits[2]);
1433         snd_ca0106_ptr_write(chip, SPCS3, 0, chip->spdif_str_bits[3]);
1434
1435         snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1436         snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1437
1438         /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1439         outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
1440         outw(0x8000, chip->port + AC97DATA);
1441 #if 0 /* FIXME: what are these? */
1442         snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1443         snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1444         snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1445         snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1446 #endif
1447
1448         /* OSS drivers set this. */
1449         /* snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); */
1450
1451         /* Analog or Digital output */
1452         snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1453         /* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers.
1454          * Use 0x000f0000 for surround71
1455          */
1456         snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000);
1457
1458         chip->spdif_enable = 0; /* Set digital SPDIF output off */
1459         /*snd_ca0106_ptr_write(chip, 0x45, 0, 0);*/ /* Analogue out */
1460         /*snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00);*/ /* Digital out */
1461
1462         /* goes to 0x40c80000 when doing SPDIF IN/OUT */
1463         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000);
1464         /* (Mute) CAPTURE feedback into PLAYBACK volume.
1465          * Only lower 16 bits matter.
1466          */
1467         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff);
1468         /* SPDIF IN Volume */
1469         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000);
1470         /* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1471         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000);
1472
1473         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1474         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1475         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1476         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1477
1478         for (ch = 0; ch < 4; ch++) {
1479                 /* Only high 16 bits matter */
1480                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030);
1481                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1482 #if 0 /* Mute */
1483                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040);
1484                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040);
1485                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff);
1486                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff);
1487 #endif
1488         }
1489         if (chip->details->i2c_adc == 1) {
1490                 /* Select MIC, Line in, TAD in, AUX in */
1491                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1492                 /* Default to CAPTURE_SOURCE to i2s in */
1493                 if (!resume)
1494                         chip->capture_source = 3;
1495         } else if (chip->details->ac97 == 1) {
1496                 /* Default to AC97 in */
1497                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x444400e4);
1498                 /* Default to CAPTURE_SOURCE to AC97 in */
1499                 if (!resume)
1500                         chip->capture_source = 4;
1501         } else {
1502                 /* Select MIC, Line in, TAD in, AUX in */
1503                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1504                 /* Default to Set CAPTURE_SOURCE to i2s in */
1505                 if (!resume)
1506                         chip->capture_source = 3;
1507         }
1508
1509         if (chip->details->gpio_type == 2) {
1510                 /* The SB0438 use GPIO differently. */
1511                 /* FIXME: Still need to find out what the other GPIO bits do.
1512                  * E.g. For digital spdif out.
1513                  */
1514                 outl(0x0, chip->port+GPIO);
1515                 /* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1516                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1517         } else if (chip->details->gpio_type == 1) {
1518                 /* The SB0410 and SB0413 use GPIO differently. */
1519                 /* FIXME: Still need to find out what the other GPIO bits do.
1520                  * E.g. For digital spdif out.
1521                  */
1522                 outl(0x0, chip->port+GPIO);
1523                 /* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1524                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1525         } else {
1526                 outl(0x0, chip->port+GPIO);
1527                 outl(0x005f03a3, chip->port+GPIO); /* Analog */
1528                 /* outl(0x005f02a2, chip->port+GPIO); */ /* SPDIF */
1529         }
1530         snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1531
1532         /* outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG); */
1533         /* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1534         /* outl(0x00001409, chip->port+HCFG); */
1535         /* outl(0x00000009, chip->port+HCFG); */
1536         /* AC97 2.0, Enable outputs. */
1537         outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG);
1538
1539         if (chip->details->i2c_adc == 1) {
1540                 /* The SB0410 and SB0413 use I2C to control ADC. */
1541                 int size, n;
1542
1543                 size = ARRAY_SIZE(i2c_adc_init);
1544                 /* dev_dbg(emu->card->dev, "I2C:array size=0x%x\n", size); */
1545                 for (n = 0; n < size; n++)
1546                         snd_ca0106_i2c_write(chip, i2c_adc_init[n][0],
1547                                              i2c_adc_init[n][1]);
1548                 for (n = 0; n < 4; n++) {
1549                         chip->i2c_capture_volume[n][0] = 0xcf;
1550                         chip->i2c_capture_volume[n][1] = 0xcf;
1551                 }
1552                 chip->i2c_capture_source = 2; /* Line in */
1553                 /* Enable Line-in capture. MIC in currently untested. */
1554                 /* snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); */
1555         }
1556
1557         if (chip->details->spi_dac) {
1558                 /* The SB0570 use SPI to control DAC. */
1559                 int size, n;
1560
1561                 size = ARRAY_SIZE(spi_dac_init);
1562                 for (n = 0; n < size; n++) {
1563                         int reg = spi_dac_init[n] >> SPI_REG_SHIFT;
1564
1565                         snd_ca0106_spi_write(chip, spi_dac_init[n]);
1566                         if (reg < ARRAY_SIZE(chip->spi_dac_reg))
1567                                 chip->spi_dac_reg[reg] = spi_dac_init[n];
1568                 }
1569
1570                 /* Enable front dac only */
1571                 snd_ca0106_pcm_power_dac(chip, PCM_FRONT_CHANNEL, 1);
1572         }
1573 }
1574
1575 static void ca0106_stop_chip(struct snd_ca0106 *chip)
1576 {
1577         /* disable interrupts */
1578         snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
1579         outl(0, chip->port + INTE);
1580         snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
1581         udelay(1000);
1582         /* disable audio */
1583         /* outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG); */
1584         outl(0, chip->port + HCFG);
1585         /* FIXME: We need to stop and DMA transfers here.
1586          *        But as I am not sure how yet, we cannot from the dma pages.
1587          * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
1588          */
1589 }
1590
1591 static int snd_ca0106_create(int dev, struct snd_card *card,
1592                                          struct pci_dev *pci,
1593                                          struct snd_ca0106 **rchip)
1594 {
1595         struct snd_ca0106 *chip;
1596         const struct snd_ca0106_details *c;
1597         int err;
1598         static const struct snd_device_ops ops = {
1599                 .dev_free = snd_ca0106_dev_free,
1600         };
1601
1602         *rchip = NULL;
1603
1604         err = pci_enable_device(pci);
1605         if (err < 0)
1606                 return err;
1607         if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32))) {
1608                 dev_err(card->dev, "error to set 32bit mask DMA\n");
1609                 pci_disable_device(pci);
1610                 return -ENXIO;
1611         }
1612
1613         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1614         if (chip == NULL) {
1615                 pci_disable_device(pci);
1616                 return -ENOMEM;
1617         }
1618
1619         chip->card = card;
1620         chip->pci = pci;
1621         chip->irq = -1;
1622
1623         spin_lock_init(&chip->emu_lock);
1624
1625         chip->port = pci_resource_start(pci, 0);
1626         chip->res_port = request_region(chip->port, 0x20, "snd_ca0106");
1627         if (!chip->res_port) {
1628                 snd_ca0106_free(chip);
1629                 dev_err(card->dev, "cannot allocate the port\n");
1630                 return -EBUSY;
1631         }
1632
1633         if (request_irq(pci->irq, snd_ca0106_interrupt,
1634                         IRQF_SHARED, KBUILD_MODNAME, chip)) {
1635                 snd_ca0106_free(chip);
1636                 dev_err(card->dev, "cannot grab irq\n");
1637                 return -EBUSY;
1638         }
1639         chip->irq = pci->irq;
1640         card->sync_irq = chip->irq;
1641
1642         /* This stores the periods table. */
1643         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &pci->dev,
1644                                 1024, &chip->buffer) < 0) {
1645                 snd_ca0106_free(chip);
1646                 return -ENOMEM;
1647         }
1648
1649         pci_set_master(pci);
1650         /* read serial */
1651         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1652         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1653         dev_info(card->dev, "Model %04x Rev %08x Serial %08x\n",
1654                chip->model, pci->revision, chip->serial);
1655         strcpy(card->driver, "CA0106");
1656         strcpy(card->shortname, "CA0106");
1657
1658         for (c = ca0106_chip_details; c->serial; c++) {
1659                 if (subsystem[dev]) {
1660                         if (c->serial == subsystem[dev])
1661                                 break;
1662                 } else if (c->serial == chip->serial)
1663                         break;
1664         }
1665         chip->details = c;
1666         if (subsystem[dev]) {
1667                 dev_info(card->dev, "Sound card name=%s, "
1668                        "subsystem=0x%x. Forced to subsystem=0x%x\n",
1669                        c->name, chip->serial, subsystem[dev]);
1670         }
1671
1672         sprintf(card->longname, "%s at 0x%lx irq %i",
1673                 c->name, chip->port, chip->irq);
1674
1675         ca0106_init_chip(chip, 0);
1676
1677         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1678         if (err < 0) {
1679                 snd_ca0106_free(chip);
1680                 return err;
1681         }
1682         *rchip = chip;
1683         return 0;
1684 }
1685
1686
1687 static void ca0106_midi_interrupt_enable(struct snd_ca_midi *midi, int intr)
1688 {
1689         snd_ca0106_intr_enable((struct snd_ca0106 *)(midi->dev_id), intr);
1690 }
1691
1692 static void ca0106_midi_interrupt_disable(struct snd_ca_midi *midi, int intr)
1693 {
1694         snd_ca0106_intr_disable((struct snd_ca0106 *)(midi->dev_id), intr);
1695 }
1696
1697 static unsigned char ca0106_midi_read(struct snd_ca_midi *midi, int idx)
1698 {
1699         return (unsigned char)snd_ca0106_ptr_read((struct snd_ca0106 *)(midi->dev_id),
1700                                                   midi->port + idx, 0);
1701 }
1702
1703 static void ca0106_midi_write(struct snd_ca_midi *midi, int data, int idx)
1704 {
1705         snd_ca0106_ptr_write((struct snd_ca0106 *)(midi->dev_id), midi->port + idx, 0, data);
1706 }
1707
1708 static struct snd_card *ca0106_dev_id_card(void *dev_id)
1709 {
1710         return ((struct snd_ca0106 *)dev_id)->card;
1711 }
1712
1713 static int ca0106_dev_id_port(void *dev_id)
1714 {
1715         return ((struct snd_ca0106 *)dev_id)->port;
1716 }
1717
1718 static int snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
1719 {
1720         struct snd_ca_midi *midi;
1721         char *name;
1722         int err;
1723
1724         if (channel == CA0106_MIDI_CHAN_B) {
1725                 name = "CA0106 MPU-401 (UART) B";
1726                 midi =  &chip->midi2;
1727                 midi->tx_enable = INTE_MIDI_TX_B;
1728                 midi->rx_enable = INTE_MIDI_RX_B;
1729                 midi->ipr_tx = IPR_MIDI_TX_B;
1730                 midi->ipr_rx = IPR_MIDI_RX_B;
1731                 midi->port = MIDI_UART_B_DATA;
1732         } else {
1733                 name = "CA0106 MPU-401 (UART)";
1734                 midi =  &chip->midi;
1735                 midi->tx_enable = INTE_MIDI_TX_A;
1736                 midi->rx_enable = INTE_MIDI_TX_B;
1737                 midi->ipr_tx = IPR_MIDI_TX_A;
1738                 midi->ipr_rx = IPR_MIDI_RX_A;
1739                 midi->port = MIDI_UART_A_DATA;
1740         }
1741
1742         midi->reset = CA0106_MPU401_RESET;
1743         midi->enter_uart = CA0106_MPU401_ENTER_UART;
1744         midi->ack = CA0106_MPU401_ACK;
1745
1746         midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1747         midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1748
1749         midi->channel = channel;
1750
1751         midi->interrupt_enable = ca0106_midi_interrupt_enable;
1752         midi->interrupt_disable = ca0106_midi_interrupt_disable;
1753
1754         midi->read = ca0106_midi_read;
1755         midi->write = ca0106_midi_write;
1756
1757         midi->get_dev_id_card = ca0106_dev_id_card;
1758         midi->get_dev_id_port = ca0106_dev_id_port;
1759
1760         midi->dev_id = chip;
1761
1762         if ((err = ca_midi_init(chip, midi, 0, name)) < 0)
1763                 return err;
1764
1765         return 0;
1766 }
1767
1768
1769 static int snd_ca0106_probe(struct pci_dev *pci,
1770                                         const struct pci_device_id *pci_id)
1771 {
1772         static int dev;
1773         struct snd_card *card;
1774         struct snd_ca0106 *chip;
1775         int i, err;
1776
1777         if (dev >= SNDRV_CARDS)
1778                 return -ENODEV;
1779         if (!enable[dev]) {
1780                 dev++;
1781                 return -ENOENT;
1782         }
1783
1784         err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1785                            0, &card);
1786         if (err < 0)
1787                 return err;
1788
1789         err = snd_ca0106_create(dev, card, pci, &chip);
1790         if (err < 0)
1791                 goto error;
1792         card->private_data = chip;
1793
1794         for (i = 0; i < 4; i++) {
1795                 err = snd_ca0106_pcm(chip, i);
1796                 if (err < 0)
1797                         goto error;
1798         }
1799
1800         if (chip->details->ac97 == 1) {
1801                 /* The SB0410 and SB0413 do not have an AC97 chip. */
1802                 err = snd_ca0106_ac97(chip);
1803                 if (err < 0)
1804                         goto error;
1805         }
1806         err = snd_ca0106_mixer(chip);
1807         if (err < 0)
1808                 goto error;
1809
1810         dev_dbg(card->dev, "probe for MIDI channel A ...");
1811         err = snd_ca0106_midi(chip, CA0106_MIDI_CHAN_A);
1812         if (err < 0)
1813                 goto error;
1814         dev_dbg(card->dev, " done.\n");
1815
1816 #ifdef CONFIG_SND_PROC_FS
1817         snd_ca0106_proc_init(chip);
1818 #endif
1819
1820         err = snd_card_register(card);
1821         if (err < 0)
1822                 goto error;
1823
1824         pci_set_drvdata(pci, card);
1825         dev++;
1826         return 0;
1827
1828  error:
1829         snd_card_free(card);
1830         return err;
1831 }
1832
1833 static void snd_ca0106_remove(struct pci_dev *pci)
1834 {
1835         snd_card_free(pci_get_drvdata(pci));
1836 }
1837
1838 #ifdef CONFIG_PM_SLEEP
1839 static int snd_ca0106_suspend(struct device *dev)
1840 {
1841         struct snd_card *card = dev_get_drvdata(dev);
1842         struct snd_ca0106 *chip = card->private_data;
1843
1844         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1845         if (chip->details->ac97)
1846                 snd_ac97_suspend(chip->ac97);
1847         snd_ca0106_mixer_suspend(chip);
1848
1849         ca0106_stop_chip(chip);
1850         return 0;
1851 }
1852
1853 static int snd_ca0106_resume(struct device *dev)
1854 {
1855         struct snd_card *card = dev_get_drvdata(dev);
1856         struct snd_ca0106 *chip = card->private_data;
1857         int i;
1858
1859         ca0106_init_chip(chip, 1);
1860
1861         if (chip->details->ac97)
1862                 snd_ac97_resume(chip->ac97);
1863         snd_ca0106_mixer_resume(chip);
1864         if (chip->details->spi_dac) {
1865                 for (i = 0; i < ARRAY_SIZE(chip->spi_dac_reg); i++)
1866                         snd_ca0106_spi_write(chip, chip->spi_dac_reg[i]);
1867         }
1868
1869         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1870         return 0;
1871 }
1872
1873 static SIMPLE_DEV_PM_OPS(snd_ca0106_pm, snd_ca0106_suspend, snd_ca0106_resume);
1874 #define SND_CA0106_PM_OPS       &snd_ca0106_pm
1875 #else
1876 #define SND_CA0106_PM_OPS       NULL
1877 #endif
1878
1879 // PCI IDs
1880 static const struct pci_device_id snd_ca0106_ids[] = {
1881         { PCI_VDEVICE(CREATIVE, 0x0007), 0 },   /* Audigy LS or Live 24bit */
1882         { 0, }
1883 };
1884 MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1885
1886 // pci_driver definition
1887 static struct pci_driver ca0106_driver = {
1888         .name = KBUILD_MODNAME,
1889         .id_table = snd_ca0106_ids,
1890         .probe = snd_ca0106_probe,
1891         .remove = snd_ca0106_remove,
1892         .driver = {
1893                 .pm = SND_CA0106_PM_OPS,
1894         },
1895 };
1896
1897 module_pci_driver(ca0106_driver);