git.oblomov.eu Git - linux-2.6/blob - sound/pci/ca0106/ca0106_main.c

   1 /*
   2  *  Copyright (c) 2004 James Courtier-Dutton <James@superbug.demon.co.uk>
   3  *  Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit
   4  *  Version: 0.0.25
   5  *
   6  *  FEATURES currently supported:
   7  *    Front, Rear and Center/LFE.
   8  *    Surround40 and Surround51.
   9  *    Capture from MIC an LINE IN input.
  10  *    SPDIF digital playback of PCM stereo and AC3/DTS works.
  11  *    (One can use a standard mono mini-jack to one RCA plugs cable.
  12  *     or one can use a standard stereo mini-jack to two RCA plugs cable.
  13  *     Plug one of the RCA plugs into the Coax input of the external decoder/receiver.)
  14  *    ( In theory one could output 3 different AC3 streams at once, to 3 different SPDIF outputs. )
  15  *    Notes on how to capture sound:
  16  *      The AC97 is used in the PLAYBACK direction.
  17  *      The output from the AC97 chip, instead of reaching the speakers, is fed into the Philips 1361T ADC.
  18  *      So, to record from the MIC, set the MIC Playback volume to max,
  19  *      unmute the MIC and turn up the MASTER Playback volume.
  20  *      So, to prevent feedback when capturing, minimise the "Capture feedback into Playback" volume.
  21  *
  22  *    The only playback controls that currently do anything are: -
  23  *    Analog Front
  24  *    Analog Rear
  25  *    Analog Center/LFE
  26  *    SPDIF Front
  27  *    SPDIF Rear
  28  *    SPDIF Center/LFE
  29  *
  30  *    For capture from Mic in or Line in.
  31  *    Digital/Analog ( switch must be in Analog mode for CAPTURE. )
  32  *
  33  *    CAPTURE feedback into PLAYBACK
  34  *
  35  *  Changelog:
  36  *    Support interrupts per period.
  37  *    Removed noise from Center/LFE channel when in Analog mode.
  38  *    Rename and remove mixer controls.
  39  *  0.0.6
  40  *    Use separate card based DMA buffer for periods table list.
  41  *  0.0.7
  42  *    Change remove and rename ctrls into lists.
  43  *  0.0.8
  44  *    Try to fix capture sources.
  45  *  0.0.9
  46  *    Fix AC3 output.
  47  *    Enable S32_LE format support.
  48  *  0.0.10
  49  *    Enable playback 48000 and 96000 rates. (Rates other that these do not work, even with "plug:front".)
  50  *  0.0.11
  51  *    Add Model name recognition.
  52  *  0.0.12
  53  *    Correct interrupt timing. interrupt at end of period, instead of in the middle of a playback period.
  54  *    Remove redundent "voice" handling.
  55  *  0.0.13
  56  *    Single trigger call for multi channels.
  57  *  0.0.14
  58  *    Set limits based on what the sound card hardware can do.
  59  *    playback periods_min=2, periods_max=8
  60  *    capture hw constraints require period_size = n * 64 bytes.
  61  *    playback hw constraints require period_size = n * 64 bytes.
  62  *  0.0.15
  63  *    Minor updates.
  64  *  0.0.16
  65  *    Implement 192000 sample rate.
  66  *  0.0.17
  67  *    Add support for SB0410 and SB0413.
  68  *  0.0.18
  69  *    Modified Copyright message.
  70  *  0.0.19
  71  *    Finally fix support for SB Live 24 bit. SB0410 and SB0413.
  72  *    The output codec needs resetting, otherwise all output is muted.
  73  *  0.0.20
  74  *    Merge "pci_disable_device(pci);" fixes.
  75  *  0.0.21
  76  *    Add 4 capture channels. (SPDIF only comes in on channel 0. )
  77  *    Add SPDIF capture using optional digital I/O module for SB Live 24bit. (Analog capture does not yet work.)
  78  *  0.0.22
  79  *    Add support for MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97. From kiksen, bug #901
  80  *  0.0.23
  81  *    Implement support for Line-in capture on SB Live 24bit.
  82  *  0.0.24
  83  *    Add support for mute control on SB Live 24bit (cards w/ SPI DAC)
  84  *  0.0.25
  85  *    Powerdown SPI DAC channels when not in use
  86  *
  87  *  BUGS:
  88  *    Some stability problems when unloading the snd-ca0106 kernel module.
  89  *    --
  90  *
  91  *  TODO:
  92  *    4 Capture channels, only one implemented so far.
  93  *    Other capture rates apart from 48khz not implemented.
  94  *    MIDI
  95  *    --
  96  *  GENERAL INFO:
  97  *    Model: SB0310
  98  *    P17 Chip: CA0106-DAT
  99  *    AC97 Codec: STAC 9721
 100  *    ADC: Philips 1361T (Stereo 24bit)
 101  *    DAC: WM8746EDS (6-channel, 24bit, 192Khz)
 102  *
 103  *  GENERAL INFO:
 104  *    Model: SB0410
 105  *    P17 Chip: CA0106-DAT
 106  *    AC97 Codec: None
 107  *    ADC: WM8775EDS (4 Channel)
 108  *    DAC: CS4382 (114 dB, 24-Bit, 192 kHz, 8-Channel D/A Converter with DSD Support)
 109  *    SPDIF Out control switches between Mic in and SPDIF out.
 110  *    No sound out or mic input working yet.
 111  *
 112  *  GENERAL INFO:
 113  *    Model: SB0413
 114  *    P17 Chip: CA0106-DAT
 115  *    AC97 Codec: None.
 116  *    ADC: Unknown
 117  *    DAC: Unknown
 118  *    Trying to handle it like the SB0410.
 119  *
 120  *  This code was initally based on code from ALSA's emu10k1x.c which is:
 121  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
 122  *
 123  *   This program is free software; you can redistribute it and/or modify
 124  *   it under the terms of the GNU General Public License as published by
 125  *   the Free Software Foundation; either version 2 of the License, or
 126  *   (at your option) any later version.
 127  *
 128  *   This program is distributed in the hope that it will be useful,
 129  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 130  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 131  *   GNU General Public License for more details.
 132  *
 133  *   You should have received a copy of the GNU General Public License
 134  *   along with this program; if not, write to the Free Software
 135  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 136  *
 137  */
 138 #include <linux/delay.h>
 139 #include <linux/init.h>
 140 #include <linux/interrupt.h>
 141 #include <linux/pci.h>
 142 #include <linux/slab.h>
 143 #include <linux/moduleparam.h>
 144 #include <linux/dma-mapping.h>
 145 #include <sound/core.h>
 146 #include <sound/initval.h>
 147 #include <sound/pcm.h>
 148 #include <sound/ac97_codec.h>
 149 #include <sound/info.h>
 150
 151 MODULE_AUTHOR("James Courtier-Dutton <James@superbug.demon.co.uk>");
 152 MODULE_DESCRIPTION("CA0106");
 153 MODULE_LICENSE("GPL");
 154 MODULE_SUPPORTED_DEVICE("{{Creative,SB CA0106 chip}}");
 155
 156 // module parameters (see "Module Parameters")
 157 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
 158 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
 159 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
 160 static uint subsystem[SNDRV_CARDS]; /* Force card subsystem model */
 161
 162 module_param_array(index, int, NULL, 0444);
 163 MODULE_PARM_DESC(index, "Index value for the CA0106 soundcard.");
 164 module_param_array(id, charp, NULL, 0444);
 165 MODULE_PARM_DESC(id, "ID string for the CA0106 soundcard.");
 166 module_param_array(enable, bool, NULL, 0444);
 167 MODULE_PARM_DESC(enable, "Enable the CA0106 soundcard.");
 168 module_param_array(subsystem, uint, NULL, 0444);
 169 MODULE_PARM_DESC(subsystem, "Force card subsystem model.");
 170
 171 #include "ca0106.h"
 172
 173 static struct snd_ca0106_details ca0106_chip_details[] = {
 174          /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
 175          /* It is really just a normal SB Live 24bit. */
 176          /* Tested:
 177           * See ALSA bug#3251
 178           */
 179          { .serial = 0x10131102,
 180            .name   = "X-Fi Extreme Audio [SBxxxx]",
 181            .gpio_type = 1,
 182            .i2c_adc = 1 } ,
 183          /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
 184          /* It is really just a normal SB Live 24bit. */
 185          /*
 186           * CTRL:CA0111-WTLF
 187           * ADC: WM8775SEDS
 188           * DAC: CS4382-KQZ
 189           */
 190          /* Tested:
 191           * Playback on front, rear, center/lfe speakers
 192           * Capture from Mic in.
 193           * Not-Tested:
 194           * Capture from Line in.
 195           * Playback to digital out.
 196           */
 197          { .serial = 0x10121102,
 198            .name   = "X-Fi Extreme Audio [SB0790]",
 199            .gpio_type = 1,
 200            .i2c_adc = 1 } ,
 201          /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
 202          /* AudigyLS[SB0310] */
 203          { .serial = 0x10021102,
 204            .name   = "AudigyLS [SB0310]",
 205            .ac97   = 1 } ,
 206          /* Unknown AudigyLS that also says SB0310 on it */
 207          { .serial = 0x10051102,
 208            .name   = "AudigyLS [SB0310b]",
 209            .ac97   = 1 } ,
 210          /* New Sound Blaster Live! 7.1 24bit. This does not have an AC97. 53SB041000001 */
 211          { .serial = 0x10061102,
 212            .name   = "Live! 7.1 24bit [SB0410]",
 213            .gpio_type = 1,
 214            .i2c_adc = 1 } ,
 215          /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
 216          { .serial = 0x10071102,
 217            .name   = "Live! 7.1 24bit [SB0413]",
 218            .gpio_type = 1,
 219            .i2c_adc = 1 } ,
 220          /* New Audigy SE. Has a different DAC. */
 221          /* SB0570:
 222           * CTRL:CA0106-DAT
 223           * ADC: WM8775EDS
 224           * DAC: WM8768GEDS
 225           */
 226          { .serial = 0x100a1102,
 227            .name   = "Audigy SE [SB0570]",
 228            .gpio_type = 1,
 229            .i2c_adc = 1,
 230            .spi_dac = 1 } ,
 231          /* New Audigy LS. Has a different DAC. */
 232          /* SB0570:
 233           * CTRL:CA0106-DAT
 234           * ADC: WM8775EDS
 235           * DAC: WM8768GEDS
 236           */
 237          { .serial = 0x10111102,
 238            .name   = "Audigy SE OEM [SB0570a]",
 239            .gpio_type = 1,
 240            .i2c_adc = 1,
 241            .spi_dac = 1 } ,
 242          /* MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97 */
 243          /* SB0438
 244           * CTRL:CA0106-DAT
 245           * ADC: WM8775SEDS
 246           * DAC: CS4382-KQZ
 247           */
 248          { .serial = 0x10091462,
 249            .name   = "MSI K8N Diamond MB [SB0438]",
 250            .gpio_type = 2,
 251            .i2c_adc = 1 } ,
 252          /* MSI K8N Diamond PLUS MB */
 253          { .serial = 0x10091102,
 254            .name   = "MSI K8N Diamond MB",
 255            .gpio_type = 2,
 256            .i2c_adc = 1,
 257            .spi_dac = 1 } ,
 258          /* Shuttle XPC SD31P which has an onboard Creative Labs
 259           * Sound Blaster Live! 24-bit EAX
 260           * high-definition 7.1 audio processor".
 261           * Added using info from andrewvegan in alsa bug #1298
 262           */
 263          { .serial = 0x30381297,
 264            .name   = "Shuttle XPC SD31P [SD31P]",
 265            .gpio_type = 1,
 266            .i2c_adc = 1 } ,
 267         /* Shuttle XPC SD11G5 which has an onboard Creative Labs
 268          * Sound Blaster Live! 24-bit EAX
 269          * high-definition 7.1 audio processor".
 270          * Fixes ALSA bug#1600
 271          */
 272         { .serial = 0x30411297,
 273           .name = "Shuttle XPC SD11G5 [SD11G5]",
 274           .gpio_type = 1,
 275           .i2c_adc = 1 } ,
 276          { .serial = 0,
 277            .name   = "AudigyLS [Unknown]" }
 278 };
 279
 280 /* hardware definition */
 281 static struct snd_pcm_hardware snd_ca0106_playback_hw = {
 282         .info =                 SNDRV_PCM_INFO_MMAP |
 283                                 SNDRV_PCM_INFO_INTERLEAVED |
 284                                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 285                                 SNDRV_PCM_INFO_MMAP_VALID |
 286                                 SNDRV_PCM_INFO_SYNC_START,
 287         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
 288         .rates =                (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |
 289                                  SNDRV_PCM_RATE_192000),
 290         .rate_min =             48000,
 291         .rate_max =             192000,
 292         .channels_min =         2,  //1,
 293         .channels_max =         2,  //6,
 294         .buffer_bytes_max =     ((65536 - 64) * 8),
 295         .period_bytes_min =     64,
 296         .period_bytes_max =     (65536 - 64),
 297         .periods_min =          2,
 298         .periods_max =          8,
 299         .fifo_size =            0,
 300 };
 301
 302 static struct snd_pcm_hardware snd_ca0106_capture_hw = {
 303         .info =                 (SNDRV_PCM_INFO_MMAP |
 304                                  SNDRV_PCM_INFO_INTERLEAVED |
 305                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 306                                  SNDRV_PCM_INFO_MMAP_VALID),
 307         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
 308 #if 0 /* FIXME: looks like 44.1kHz capture causes noisy output on 48kHz */
 309         .rates =                (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
 310                                  SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
 311         .rate_min =             44100,
 312 #else
 313         .rates =                (SNDRV_PCM_RATE_48000 |
 314                                  SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
 315         .rate_min =             48000,
 316 #endif /* FIXME */
 317         .rate_max =             192000,
 318         .channels_min =         2,
 319         .channels_max =         2,
 320         .buffer_bytes_max =     ((65536 - 64) * 8),
 321         .period_bytes_min =     64,
 322         .period_bytes_max =     (65536 - 64),
 323         .periods_min =          2,
 324         .periods_max =          2,
 325         .fifo_size =            0,
 326 };
 327
 328 unsigned int snd_ca0106_ptr_read(struct snd_ca0106 * emu,
 329                                           unsigned int reg,
 330                                           unsigned int chn)
 331 {
 332         unsigned long flags;
 333         unsigned int regptr, val;
 334
 335         regptr = (reg << 16) | chn;
 336
 337         spin_lock_irqsave(&emu->emu_lock, flags);
 338         outl(regptr, emu->port + PTR);
 339         val = inl(emu->port + DATA);
 340         spin_unlock_irqrestore(&emu->emu_lock, flags);
 341         return val;
 342 }
 343
 344 void snd_ca0106_ptr_write(struct snd_ca0106 *emu,
 345                                    unsigned int reg,
 346                                    unsigned int chn,
 347                                    unsigned int data)
 348 {
 349         unsigned int regptr;
 350         unsigned long flags;
 351
 352         regptr = (reg << 16) | chn;
 353
 354         spin_lock_irqsave(&emu->emu_lock, flags);
 355         outl(regptr, emu->port + PTR);
 356         outl(data, emu->port + DATA);
 357         spin_unlock_irqrestore(&emu->emu_lock, flags);
 358 }
 359
 360 int snd_ca0106_spi_write(struct snd_ca0106 * emu,
 361                                    unsigned int data)
 362 {
 363         unsigned int reset, set;
 364         unsigned int reg, tmp;
 365         int n, result;
 366         reg = SPI;
 367         if (data > 0xffff) /* Only 16bit values allowed */
 368                 return 1;
 369         tmp = snd_ca0106_ptr_read(emu, reg, 0);
 370         reset = (tmp & ~0x3ffff) | 0x20000; /* Set xxx20000 */
 371         set = reset | 0x10000; /* Set xxx1xxxx */
 372         snd_ca0106_ptr_write(emu, reg, 0, reset | data);
 373         tmp = snd_ca0106_ptr_read(emu, reg, 0); /* write post */
 374         snd_ca0106_ptr_write(emu, reg, 0, set | data);
 375         result = 1;
 376         /* Wait for status bit to return to 0 */
 377         for (n = 0; n < 100; n++) {
 378                 udelay(10);
 379                 tmp = snd_ca0106_ptr_read(emu, reg, 0);
 380                 if (!(tmp & 0x10000)) {
 381                         result = 0;
 382                         break;
 383                 }
 384         }
 385         if (result) /* Timed out */
 386                 return 1;
 387         snd_ca0106_ptr_write(emu, reg, 0, reset | data);
 388         tmp = snd_ca0106_ptr_read(emu, reg, 0); /* Write post */
 389         return 0;
 390 }
 391
 392 /* The ADC does not support i2c read, so only write is implemented */
 393 int snd_ca0106_i2c_write(struct snd_ca0106 *emu,
 394                                 u32 reg,
 395                                 u32 value)
 396 {
 397         u32 tmp;
 398         int timeout = 0;
 399         int status;
 400         int retry;
 401         if ((reg > 0x7f) || (value > 0x1ff)) {
 402                 snd_printk(KERN_ERR "i2c_write: invalid values.\n");
 403                 return -EINVAL;
 404         }
 405
 406         tmp = reg << 25 | value << 16;
 407         /*
 408         snd_printk(KERN_DEBUG "I2C-write:reg=0x%x, value=0x%x\n", reg, value);
 409         */
 410         /* Not sure what this I2C channel controls. */
 411         /* snd_ca0106_ptr_write(emu, I2C_D0, 0, tmp); */
 412
 413         /* This controls the I2C connected to the WM8775 ADC Codec */
 414         snd_ca0106_ptr_write(emu, I2C_D1, 0, tmp);
 415
 416         for (retry = 0; retry < 10; retry++) {
 417                 /* Send the data to i2c */
 418                 //tmp = snd_ca0106_ptr_read(emu, I2C_A, 0);
 419                 //tmp = tmp & ~(I2C_A_ADC_READ|I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD_MASK);
 420                 tmp = 0;
 421                 tmp = tmp | (I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD);
 422                 snd_ca0106_ptr_write(emu, I2C_A, 0, tmp);
 423
 424                 /* Wait till the transaction ends */
 425                 while (1) {
 426                         status = snd_ca0106_ptr_read(emu, I2C_A, 0);
 427                         /*snd_printk(KERN_DEBUG "I2C:status=0x%x\n", status);*/
 428                         timeout++;
 429                         if ((status & I2C_A_ADC_START) == 0)
 430                                 break;
 431
 432                         if (timeout > 1000)
 433                                 break;
 434                 }
 435                 //Read back and see if the transaction is successful
 436                 if ((status & I2C_A_ADC_ABORT) == 0)
 437                         break;
 438         }
 439
 440         if (retry == 10) {
 441                 snd_printk(KERN_ERR "Writing to ADC failed!\n");
 442                 return -EINVAL;
 443         }
 444
 445         return 0;
 446 }
 447
 448
 449 static void snd_ca0106_intr_enable(struct snd_ca0106 *emu, unsigned int intrenb)
 450 {
 451         unsigned long flags;
 452         unsigned int intr_enable;
 453
 454         spin_lock_irqsave(&emu->emu_lock, flags);
 455         intr_enable = inl(emu->port + INTE) | intrenb;
 456         outl(intr_enable, emu->port + INTE);
 457         spin_unlock_irqrestore(&emu->emu_lock, flags);
 458 }
 459
 460 static void snd_ca0106_intr_disable(struct snd_ca0106 *emu, unsigned int intrenb)
 461 {
 462         unsigned long flags;
 463         unsigned int intr_enable;
 464
 465         spin_lock_irqsave(&emu->emu_lock, flags);
 466         intr_enable = inl(emu->port + INTE) & ~intrenb;
 467         outl(intr_enable, emu->port + INTE);
 468         spin_unlock_irqrestore(&emu->emu_lock, flags);
 469 }
 470
 471
 472 static void snd_ca0106_pcm_free_substream(struct snd_pcm_runtime *runtime)
 473 {
 474         kfree(runtime->private_data);
 475 }
 476
 477 static const int spi_dacd_reg[] = {
 478         [PCM_FRONT_CHANNEL]     = SPI_DACD4_REG,
 479         [PCM_REAR_CHANNEL]      = SPI_DACD0_REG,
 480         [PCM_CENTER_LFE_CHANNEL]= SPI_DACD2_REG,
 481         [PCM_UNKNOWN_CHANNEL]   = SPI_DACD1_REG,
 482 };
 483 static const int spi_dacd_bit[] = {
 484         [PCM_FRONT_CHANNEL]     = SPI_DACD4_BIT,
 485         [PCM_REAR_CHANNEL]      = SPI_DACD0_BIT,
 486         [PCM_CENTER_LFE_CHANNEL]= SPI_DACD2_BIT,
 487         [PCM_UNKNOWN_CHANNEL]   = SPI_DACD1_BIT,
 488 };
 489
 490 static void restore_spdif_bits(struct snd_ca0106 *chip, int idx)
 491 {
 492         if (chip->spdif_str_bits[idx] != chip->spdif_bits[idx]) {
 493                 chip->spdif_str_bits[idx] = chip->spdif_bits[idx];
 494                 snd_ca0106_ptr_write(chip, SPCS0 + idx, 0,
 495                                      chip->spdif_str_bits[idx]);
 496         }
 497 }
 498
 499 /* open_playback callback */
 500 static int snd_ca0106_pcm_open_playback_channel(struct snd_pcm_substream *substream,
 501                                                 int channel_id)
 502 {
 503         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 504         struct snd_ca0106_channel *channel = &(chip->playback_channels[channel_id]);
 505         struct snd_ca0106_pcm *epcm;
 506         struct snd_pcm_runtime *runtime = substream->runtime;
 507         int err;
 508
 509         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 510
 511         if (epcm == NULL)
 512                 return -ENOMEM;
 513         epcm->emu = chip;
 514         epcm->substream = substream;
 515         epcm->channel_id=channel_id;
 516
 517         runtime->private_data = epcm;
 518         runtime->private_free = snd_ca0106_pcm_free_substream;
 519
 520         runtime->hw = snd_ca0106_playback_hw;
 521
 522         channel->emu = chip;
 523         channel->number = channel_id;
 524
 525         channel->use = 1;
 526         /*
 527         printk(KERN_DEBUG "open:channel_id=%d, chip=%p, channel=%p\n",
 528                channel_id, chip, channel);
 529         */
 530         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 531         channel->epcm = epcm;
 532         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 533                 return err;
 534         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 535                 return err;
 536         snd_pcm_set_sync(substream);
 537
 538         if (chip->details->spi_dac && channel_id != PCM_FRONT_CHANNEL) {
 539                 const int reg = spi_dacd_reg[channel_id];
 540
 541                 /* Power up dac */
 542                 chip->spi_dac_reg[reg] &= ~spi_dacd_bit[channel_id];
 543                 err = snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
 544                 if (err < 0)
 545                         return err;
 546         }
 547
 548         restore_spdif_bits(chip, channel_id);
 549
 550         return 0;
 551 }
 552
 553 /* close callback */
 554 static int snd_ca0106_pcm_close_playback(struct snd_pcm_substream *substream)
 555 {
 556         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 557         struct snd_pcm_runtime *runtime = substream->runtime;
 558         struct snd_ca0106_pcm *epcm = runtime->private_data;
 559         chip->playback_channels[epcm->channel_id].use = 0;
 560
 561         restore_spdif_bits(chip, epcm->channel_id);
 562
 563         if (chip->details->spi_dac && epcm->channel_id != PCM_FRONT_CHANNEL) {
 564                 const int reg = spi_dacd_reg[epcm->channel_id];
 565
 566                 /* Power down DAC */
 567                 chip->spi_dac_reg[reg] |= spi_dacd_bit[epcm->channel_id];
 568                 snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
 569         }
 570         /* FIXME: maybe zero others */
 571         return 0;
 572 }
 573
 574 static int snd_ca0106_pcm_open_playback_front(struct snd_pcm_substream *substream)
 575 {
 576         return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
 577 }
 578
 579 static int snd_ca0106_pcm_open_playback_center_lfe(struct snd_pcm_substream *substream)
 580 {
 581         return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
 582 }
 583
 584 static int snd_ca0106_pcm_open_playback_unknown(struct snd_pcm_substream *substream)
 585 {
 586         return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
 587 }
 588
 589 static int snd_ca0106_pcm_open_playback_rear(struct snd_pcm_substream *substream)
 590 {
 591         return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
 592 }
 593
 594 /* open_capture callback */
 595 static int snd_ca0106_pcm_open_capture_channel(struct snd_pcm_substream *substream,
 596                                                int channel_id)
 597 {
 598         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 599         struct snd_ca0106_channel *channel = &(chip->capture_channels[channel_id]);
 600         struct snd_ca0106_pcm *epcm;
 601         struct snd_pcm_runtime *runtime = substream->runtime;
 602         int err;
 603
 604         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 605         if (epcm == NULL) {
 606                 snd_printk(KERN_ERR "open_capture_channel: failed epcm alloc\n");
 607                 return -ENOMEM;
 608         }
 609         epcm->emu = chip;
 610         epcm->substream = substream;
 611         epcm->channel_id=channel_id;
 612
 613         runtime->private_data = epcm;
 614         runtime->private_free = snd_ca0106_pcm_free_substream;
 615
 616         runtime->hw = snd_ca0106_capture_hw;
 617
 618         channel->emu = chip;
 619         channel->number = channel_id;
 620
 621         channel->use = 1;
 622         /*
 623         printk(KERN_DEBUG "open:channel_id=%d, chip=%p, channel=%p\n",
 624                channel_id, chip, channel);
 625         */
 626         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 627         channel->epcm = epcm;
 628         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 629                 return err;
 630         //snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
 631         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 632                 return err;
 633         return 0;
 634 }
 635
 636 /* close callback */
 637 static int snd_ca0106_pcm_close_capture(struct snd_pcm_substream *substream)
 638 {
 639         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 640         struct snd_pcm_runtime *runtime = substream->runtime;
 641         struct snd_ca0106_pcm *epcm = runtime->private_data;
 642         chip->capture_channels[epcm->channel_id].use = 0;
 643         /* FIXME: maybe zero others */
 644         return 0;
 645 }
 646
 647 static int snd_ca0106_pcm_open_0_capture(struct snd_pcm_substream *substream)
 648 {
 649         return snd_ca0106_pcm_open_capture_channel(substream, 0);
 650 }
 651
 652 static int snd_ca0106_pcm_open_1_capture(struct snd_pcm_substream *substream)
 653 {
 654         return snd_ca0106_pcm_open_capture_channel(substream, 1);
 655 }
 656
 657 static int snd_ca0106_pcm_open_2_capture(struct snd_pcm_substream *substream)
 658 {
 659         return snd_ca0106_pcm_open_capture_channel(substream, 2);
 660 }
 661
 662 static int snd_ca0106_pcm_open_3_capture(struct snd_pcm_substream *substream)
 663 {
 664         return snd_ca0106_pcm_open_capture_channel(substream, 3);
 665 }
 666
 667 /* hw_params callback */
 668 static int snd_ca0106_pcm_hw_params_playback(struct snd_pcm_substream *substream,
 669                                       struct snd_pcm_hw_params *hw_params)
 670 {
 671         return snd_pcm_lib_malloc_pages(substream,
 672                                         params_buffer_bytes(hw_params));
 673 }
 674
 675 /* hw_free callback */
 676 static int snd_ca0106_pcm_hw_free_playback(struct snd_pcm_substream *substream)
 677 {
 678         return snd_pcm_lib_free_pages(substream);
 679 }
 680
 681 /* hw_params callback */
 682 static int snd_ca0106_pcm_hw_params_capture(struct snd_pcm_substream *substream,
 683                                       struct snd_pcm_hw_params *hw_params)
 684 {
 685         return snd_pcm_lib_malloc_pages(substream,
 686                                         params_buffer_bytes(hw_params));
 687 }
 688
 689 /* hw_free callback */
 690 static int snd_ca0106_pcm_hw_free_capture(struct snd_pcm_substream *substream)
 691 {
 692         return snd_pcm_lib_free_pages(substream);
 693 }
 694
 695 /* prepare playback callback */
 696 static int snd_ca0106_pcm_prepare_playback(struct snd_pcm_substream *substream)
 697 {
 698         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 699         struct snd_pcm_runtime *runtime = substream->runtime;
 700         struct snd_ca0106_pcm *epcm = runtime->private_data;
 701         int channel = epcm->channel_id;
 702         u32 *table_base = (u32 *)(emu->buffer.area+(8*16*channel));
 703         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
 704         u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
 705         u32 hcfg_set = 0x00000000;
 706         u32 hcfg;
 707         u32 reg40_mask = 0x30000 << (channel<<1);
 708         u32 reg40_set = 0;
 709         u32 reg40;
 710         /* FIXME: Depending on mixer selection of SPDIF out or not, select the spdif rate or the DAC rate. */
 711         u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
 712         u32 reg71_set = 0;
 713         u32 reg71;
 714         int i;
 715
 716 #if 0 /* debug */
 717         snd_printk(KERN_DEBUG
 718                    "prepare:channel_number=%d, rate=%d, format=0x%x, "
 719                    "channels=%d, buffer_size=%ld, period_size=%ld, "
 720                    "periods=%u, frames_to_bytes=%d\n",
 721                    channel, runtime->rate, runtime->format,
 722                    runtime->channels, runtime->buffer_size,
 723                    runtime->period_size, runtime->periods,
 724                    frames_to_bytes(runtime, 1));
 725         snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, table_base=%p\n",
 726                    runtime->dma_addr, runtime->dma_area, table_base);
 727         snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
 728                    emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 729 #endif /* debug */
 730         /* Rate can be set per channel. */
 731         /* reg40 control host to fifo */
 732         /* reg71 controls DAC rate. */
 733         switch (runtime->rate) {
 734         case 44100:
 735                 reg40_set = 0x10000 << (channel<<1);
 736                 reg71_set = 0x01010000;
 737                 break;
 738         case 48000:
 739                 reg40_set = 0;
 740                 reg71_set = 0;
 741                 break;
 742         case 96000:
 743                 reg40_set = 0x20000 << (channel<<1);
 744                 reg71_set = 0x02020000;
 745                 break;
 746         case 192000:
 747                 reg40_set = 0x30000 << (channel<<1);
 748                 reg71_set = 0x03030000;
 749                 break;
 750         default:
 751                 reg40_set = 0;
 752                 reg71_set = 0;
 753                 break;
 754         }
 755         /* Format is a global setting */
 756         /* FIXME: Only let the first channel accessed set this. */
 757         switch (runtime->format) {
 758         case SNDRV_PCM_FORMAT_S16_LE:
 759                 hcfg_set = 0;
 760                 break;
 761         case SNDRV_PCM_FORMAT_S32_LE:
 762                 hcfg_set = HCFG_PLAYBACK_S32_LE;
 763                 break;
 764         default:
 765                 hcfg_set = 0;
 766                 break;
 767         }
 768         hcfg = inl(emu->port + HCFG) ;
 769         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 770         outl(hcfg, emu->port + HCFG);
 771         reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
 772         reg40 = (reg40 & ~reg40_mask) | reg40_set;
 773         snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
 774         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 775         reg71 = (reg71 & ~reg71_mask) | reg71_set;
 776         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 777
 778         /* FIXME: Check emu->buffer.size before actually writing to it. */
 779         for(i=0; i < runtime->periods; i++) {
 780                 table_base[i*2] = runtime->dma_addr + (i * period_size_bytes);
 781                 table_base[i*2+1] = period_size_bytes << 16;
 782         }
 783
 784         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
 785         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
 786         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
 787         snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
 788         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
 789         /* FIXME  test what 0 bytes does. */
 790         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
 791         snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
 792         snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
 793         snd_ca0106_ptr_write(emu, 0x08, channel, 0);
 794         snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
 795 #if 0
 796         snd_ca0106_ptr_write(emu, SPCS0, 0,
 797                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
 798                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
 799                                SPCS_GENERATIONSTATUS | 0x00001200 |
 800                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
 801 #endif
 802
 803         return 0;
 804 }
 805
 806 /* prepare capture callback */
 807 static int snd_ca0106_pcm_prepare_capture(struct snd_pcm_substream *substream)
 808 {
 809         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 810         struct snd_pcm_runtime *runtime = substream->runtime;
 811         struct snd_ca0106_pcm *epcm = runtime->private_data;
 812         int channel = epcm->channel_id;
 813         u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
 814         u32 hcfg_set = 0x00000000;
 815         u32 hcfg;
 816         u32 over_sampling=0x2;
 817         u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
 818         u32 reg71_set = 0;
 819         u32 reg71;
 820
 821 #if 0 /* debug */
 822         snd_printk(KERN_DEBUG
 823                    "prepare:channel_number=%d, rate=%d, format=0x%x, "
 824                    "channels=%d, buffer_size=%ld, period_size=%ld, "
 825                    "periods=%u, frames_to_bytes=%d\n",
 826                    channel, runtime->rate, runtime->format,
 827                    runtime->channels, runtime->buffer_size,
 828                    runtime->period_size, runtime->periods,
 829                    frames_to_bytes(runtime, 1));
 830         snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, table_base=%p\n",
 831                    runtime->dma_addr, runtime->dma_area, table_base);
 832         snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
 833                    emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 834 #endif /* debug */
 835         /* reg71 controls ADC rate. */
 836         switch (runtime->rate) {
 837         case 44100:
 838                 reg71_set = 0x00004000;
 839                 break;
 840         case 48000:
 841                 reg71_set = 0;
 842                 break;
 843         case 96000:
 844                 reg71_set = 0x00008000;
 845                 over_sampling=0xa;
 846                 break;
 847         case 192000:
 848                 reg71_set = 0x0000c000;
 849                 over_sampling=0xa;
 850                 break;
 851         default:
 852                 reg71_set = 0;
 853                 break;
 854         }
 855         /* Format is a global setting */
 856         /* FIXME: Only let the first channel accessed set this. */
 857         switch (runtime->format) {
 858         case SNDRV_PCM_FORMAT_S16_LE:
 859                 hcfg_set = 0;
 860                 break;
 861         case SNDRV_PCM_FORMAT_S32_LE:
 862                 hcfg_set = HCFG_CAPTURE_S32_LE;
 863                 break;
 864         default:
 865                 hcfg_set = 0;
 866                 break;
 867         }
 868         hcfg = inl(emu->port + HCFG) ;
 869         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 870         outl(hcfg, emu->port + HCFG);
 871         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 872         reg71 = (reg71 & ~reg71_mask) | reg71_set;
 873         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 874         if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
 875                 snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
 876         }
 877
 878
 879         /*
 880         printk(KERN_DEBUG
 881                "prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, "
 882                "buffer_size=%ld, period_size=%ld, frames_to_bytes=%d\n",
 883                channel, runtime->rate, runtime->format, runtime->channels,
 884                runtime->buffer_size, runtime->period_size,
 885                frames_to_bytes(runtime, 1));
 886         */
 887         snd_ca0106_ptr_write(emu, 0x13, channel, 0);
 888         snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
 889         snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
 890         snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
 891
 892         return 0;
 893 }
 894
 895 /* trigger_playback callback */
 896 static int snd_ca0106_pcm_trigger_playback(struct snd_pcm_substream *substream,
 897                                     int cmd)
 898 {
 899         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 900         struct snd_pcm_runtime *runtime;
 901         struct snd_ca0106_pcm *epcm;
 902         int channel;
 903         int result = 0;
 904         struct snd_pcm_substream *s;
 905         u32 basic = 0;
 906         u32 extended = 0;
 907         u32 bits;
 908         int running = 0;
 909
 910         switch (cmd) {
 911         case SNDRV_PCM_TRIGGER_START:
 912         case SNDRV_PCM_TRIGGER_RESUME:
 913                 running = 1;
 914                 break;
 915         case SNDRV_PCM_TRIGGER_STOP:
 916         case SNDRV_PCM_TRIGGER_SUSPEND:
 917         default:
 918                 running = 0;
 919                 break;
 920         }
 921         snd_pcm_group_for_each_entry(s, substream) {
 922                 if (snd_pcm_substream_chip(s) != emu ||
 923                     s->stream != SNDRV_PCM_STREAM_PLAYBACK)
 924                         continue;
 925                 runtime = s->runtime;
 926                 epcm = runtime->private_data;
 927                 channel = epcm->channel_id;
 928                 /* snd_printk(KERN_DEBUG "channel=%d\n", channel); */
 929                 epcm->running = running;
 930                 basic |= (0x1 << channel);
 931                 extended |= (0x10 << channel);
 932                 snd_pcm_trigger_done(s, substream);
 933         }
 934         /* snd_printk(KERN_DEBUG "basic=0x%x, extended=0x%x\n",basic, extended); */
 935
 936         switch (cmd) {
 937         case SNDRV_PCM_TRIGGER_START:
 938         case SNDRV_PCM_TRIGGER_RESUME:
 939                 bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
 940                 bits |= extended;
 941                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
 942                 bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
 943                 bits |= basic;
 944                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
 945                 break;
 946         case SNDRV_PCM_TRIGGER_STOP:
 947         case SNDRV_PCM_TRIGGER_SUSPEND:
 948                 bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
 949                 bits &= ~basic;
 950                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
 951                 bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
 952                 bits &= ~extended;
 953                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
 954                 break;
 955         default:
 956                 result = -EINVAL;
 957                 break;
 958         }
 959         return result;
 960 }
 961
 962 /* trigger_capture callback */
 963 static int snd_ca0106_pcm_trigger_capture(struct snd_pcm_substream *substream,
 964                                     int cmd)
 965 {
 966         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 967         struct snd_pcm_runtime *runtime = substream->runtime;
 968         struct snd_ca0106_pcm *epcm = runtime->private_data;
 969         int channel = epcm->channel_id;
 970         int result = 0;
 971
 972         switch (cmd) {
 973         case SNDRV_PCM_TRIGGER_START:
 974                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
 975                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
 976                 epcm->running = 1;
 977                 break;
 978         case SNDRV_PCM_TRIGGER_STOP:
 979                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
 980                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
 981                 epcm->running = 0;
 982                 break;
 983         default:
 984                 result = -EINVAL;
 985                 break;
 986         }
 987         return result;
 988 }
 989
 990 /* pointer_playback callback */
 991 static snd_pcm_uframes_t
 992 snd_ca0106_pcm_pointer_playback(struct snd_pcm_substream *substream)
 993 {
 994         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 995         struct snd_pcm_runtime *runtime = substream->runtime;
 996         struct snd_ca0106_pcm *epcm = runtime->private_data;
 997         snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
 998         int channel = epcm->channel_id;
 999
1000         if (!epcm->running)
1001                 return 0;
1002
1003         ptr3 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
1004         ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
1005         ptr4 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
1006         if (ptr3 != ptr4) ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
1007         ptr2 = bytes_to_frames(runtime, ptr1);
1008         ptr2+= (ptr4 >> 3) * runtime->period_size;
1009         ptr=ptr2;
1010         if (ptr >= runtime->buffer_size)
1011                 ptr -= runtime->buffer_size;
1012         /*
1013         printk(KERN_DEBUG "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
1014                "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
1015                ptr1, ptr2, ptr, (int)runtime->buffer_size,
1016                (int)runtime->period_size, (int)runtime->frame_bits,
1017                (int)runtime->rate);
1018         */
1019         return ptr;
1020 }
1021
1022 /* pointer_capture callback */
1023 static snd_pcm_uframes_t
1024 snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream *substream)
1025 {
1026         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1027         struct snd_pcm_runtime *runtime = substream->runtime;
1028         struct snd_ca0106_pcm *epcm = runtime->private_data;
1029         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
1030         int channel = channel=epcm->channel_id;
1031
1032         if (!epcm->running)
1033                 return 0;
1034
1035         ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
1036         ptr2 = bytes_to_frames(runtime, ptr1);
1037         ptr=ptr2;
1038         if (ptr >= runtime->buffer_size)
1039                 ptr -= runtime->buffer_size;
1040         /*
1041         printk(KERN_DEBUG "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
1042                "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
1043                ptr1, ptr2, ptr, (int)runtime->buffer_size,
1044                (int)runtime->period_size, (int)runtime->frame_bits,
1045                (int)runtime->rate);
1046         */
1047         return ptr;
1048 }
1049
1050 /* operators */
1051 static struct snd_pcm_ops snd_ca0106_playback_front_ops = {
1052         .open =        snd_ca0106_pcm_open_playback_front,
1053         .close =       snd_ca0106_pcm_close_playback,
1054         .ioctl =       snd_pcm_lib_ioctl,
1055         .hw_params =   snd_ca0106_pcm_hw_params_playback,
1056         .hw_free =     snd_ca0106_pcm_hw_free_playback,
1057         .prepare =     snd_ca0106_pcm_prepare_playback,
1058         .trigger =     snd_ca0106_pcm_trigger_playback,
1059         .pointer =     snd_ca0106_pcm_pointer_playback,
1060 };
1061
1062 static struct snd_pcm_ops snd_ca0106_capture_0_ops = {
1063         .open =        snd_ca0106_pcm_open_0_capture,
1064         .close =       snd_ca0106_pcm_close_capture,
1065         .ioctl =       snd_pcm_lib_ioctl,
1066         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1067         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1068         .prepare =     snd_ca0106_pcm_prepare_capture,
1069         .trigger =     snd_ca0106_pcm_trigger_capture,
1070         .pointer =     snd_ca0106_pcm_pointer_capture,
1071 };
1072
1073 static struct snd_pcm_ops snd_ca0106_capture_1_ops = {
1074         .open =        snd_ca0106_pcm_open_1_capture,
1075         .close =       snd_ca0106_pcm_close_capture,
1076         .ioctl =       snd_pcm_lib_ioctl,
1077         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1078         .hw_free =     snd_ca0106_pcm_hw_free_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 struct snd_pcm_ops snd_ca0106_capture_2_ops = {
1085         .open =        snd_ca0106_pcm_open_2_capture,
1086         .close =       snd_ca0106_pcm_close_capture,
1087         .ioctl =       snd_pcm_lib_ioctl,
1088         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1089         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1090         .prepare =     snd_ca0106_pcm_prepare_capture,
1091         .trigger =     snd_ca0106_pcm_trigger_capture,
1092         .pointer =     snd_ca0106_pcm_pointer_capture,
1093 };
1094
1095 static struct snd_pcm_ops snd_ca0106_capture_3_ops = {
1096         .open =        snd_ca0106_pcm_open_3_capture,
1097         .close =       snd_ca0106_pcm_close_capture,
1098         .ioctl =       snd_pcm_lib_ioctl,
1099         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1100         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1101         .prepare =     snd_ca0106_pcm_prepare_capture,
1102         .trigger =     snd_ca0106_pcm_trigger_capture,
1103         .pointer =     snd_ca0106_pcm_pointer_capture,
1104 };
1105
1106 static struct snd_pcm_ops snd_ca0106_playback_center_lfe_ops = {
1107         .open =         snd_ca0106_pcm_open_playback_center_lfe,
1108         .close =        snd_ca0106_pcm_close_playback,
1109         .ioctl =        snd_pcm_lib_ioctl,
1110         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1111         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1112         .prepare =      snd_ca0106_pcm_prepare_playback,
1113         .trigger =      snd_ca0106_pcm_trigger_playback,
1114         .pointer =      snd_ca0106_pcm_pointer_playback,
1115 };
1116
1117 static struct snd_pcm_ops snd_ca0106_playback_unknown_ops = {
1118         .open =         snd_ca0106_pcm_open_playback_unknown,
1119         .close =        snd_ca0106_pcm_close_playback,
1120         .ioctl =        snd_pcm_lib_ioctl,
1121         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1122         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1123         .prepare =      snd_ca0106_pcm_prepare_playback,
1124         .trigger =      snd_ca0106_pcm_trigger_playback,
1125         .pointer =      snd_ca0106_pcm_pointer_playback,
1126 };
1127
1128 static struct snd_pcm_ops snd_ca0106_playback_rear_ops = {
1129         .open =         snd_ca0106_pcm_open_playback_rear,
1130         .close =        snd_ca0106_pcm_close_playback,
1131         .ioctl =        snd_pcm_lib_ioctl,
1132         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1133                 .hw_free =      snd_ca0106_pcm_hw_free_playback,
1134         .prepare =      snd_ca0106_pcm_prepare_playback,
1135         .trigger =      snd_ca0106_pcm_trigger_playback,
1136         .pointer =      snd_ca0106_pcm_pointer_playback,
1137 };
1138
1139
1140 static unsigned short snd_ca0106_ac97_read(struct snd_ac97 *ac97,
1141                                              unsigned short reg)
1142 {
1143         struct snd_ca0106 *emu = ac97->private_data;
1144         unsigned long flags;
1145         unsigned short val;
1146
1147         spin_lock_irqsave(&emu->emu_lock, flags);
1148         outb(reg, emu->port + AC97ADDRESS);
1149         val = inw(emu->port + AC97DATA);
1150         spin_unlock_irqrestore(&emu->emu_lock, flags);
1151         return val;
1152 }
1153
1154 static void snd_ca0106_ac97_write(struct snd_ac97 *ac97,
1155                                     unsigned short reg, unsigned short val)
1156 {
1157         struct snd_ca0106 *emu = ac97->private_data;
1158         unsigned long flags;
1159
1160         spin_lock_irqsave(&emu->emu_lock, flags);
1161         outb(reg, emu->port + AC97ADDRESS);
1162         outw(val, emu->port + AC97DATA);
1163         spin_unlock_irqrestore(&emu->emu_lock, flags);
1164 }
1165
1166 static int snd_ca0106_ac97(struct snd_ca0106 *chip)
1167 {
1168         struct snd_ac97_bus *pbus;
1169         struct snd_ac97_template ac97;
1170         int err;
1171         static struct snd_ac97_bus_ops ops = {
1172                 .write = snd_ca0106_ac97_write,
1173                 .read = snd_ca0106_ac97_read,
1174         };
1175
1176         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
1177                 return err;
1178         pbus->no_vra = 1; /* we don't need VRA */
1179
1180         memset(&ac97, 0, sizeof(ac97));
1181         ac97.private_data = chip;
1182         ac97.scaps = AC97_SCAP_NO_SPDIF;
1183         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1184 }
1185
1186 static void ca0106_stop_chip(struct snd_ca0106 *chip);
1187
1188 static int snd_ca0106_free(struct snd_ca0106 *chip)
1189 {
1190         if (chip->res_port != NULL) {
1191                 /* avoid access to already used hardware */
1192                 ca0106_stop_chip(chip);
1193         }
1194         if (chip->irq >= 0)
1195                 free_irq(chip->irq, chip);
1196         // release the data
1197 #if 1
1198         if (chip->buffer.area)
1199                 snd_dma_free_pages(&chip->buffer);
1200 #endif
1201
1202         // release the i/o port
1203         release_and_free_resource(chip->res_port);
1204
1205         pci_disable_device(chip->pci);
1206         kfree(chip);
1207         return 0;
1208 }
1209
1210 static int snd_ca0106_dev_free(struct snd_device *device)
1211 {
1212         struct snd_ca0106 *chip = device->device_data;
1213         return snd_ca0106_free(chip);
1214 }
1215
1216 static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
1217 {
1218         unsigned int status;
1219
1220         struct snd_ca0106 *chip = dev_id;
1221         int i;
1222         int mask;
1223         unsigned int stat76;
1224         struct snd_ca0106_channel *pchannel;
1225
1226         status = inl(chip->port + IPR);
1227         if (! status)
1228                 return IRQ_NONE;
1229
1230         stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1231         /*
1232         snd_printk(KERN_DEBUG "interrupt status = 0x%08x, stat76=0x%08x\n",
1233                    status, stat76);
1234         snd_printk(KERN_DEBUG "ptr=0x%08x\n",
1235                    snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1236         */
1237         mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1238         for(i = 0; i < 4; i++) {
1239                 pchannel = &(chip->playback_channels[i]);
1240                 if (stat76 & mask) {
1241 /* FIXME: Select the correct substream for period elapsed */
1242                         if(pchannel->use) {
1243                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1244                                 //printk(KERN_INFO "interrupt [%d] used\n", i);
1245                         }
1246                 }
1247                 //printk(KERN_INFO "channel=%p\n",pchannel);
1248                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1249                 mask <<= 1;
1250         }
1251         mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1252         for(i = 0; i < 4; i++) {
1253                 pchannel = &(chip->capture_channels[i]);
1254                 if (stat76 & mask) {
1255 /* FIXME: Select the correct substream for period elapsed */
1256                         if(pchannel->use) {
1257                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1258                                 //printk(KERN_INFO "interrupt [%d] used\n", i);
1259                         }
1260                 }
1261                 //printk(KERN_INFO "channel=%p\n",pchannel);
1262                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1263                 mask <<= 1;
1264         }
1265
1266         snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1267
1268         if (chip->midi.dev_id &&
1269             (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1270                 if (chip->midi.interrupt)
1271                         chip->midi.interrupt(&chip->midi, status);
1272                 else
1273                         chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1274         }
1275
1276         // acknowledge the interrupt if necessary
1277         outl(status, chip->port+IPR);
1278
1279         return IRQ_HANDLED;
1280 }
1281
1282 static int __devinit snd_ca0106_pcm(struct snd_ca0106 *emu, int device)
1283 {
1284         struct snd_pcm *pcm;
1285         struct snd_pcm_substream *substream;
1286         int err;
1287
1288         err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm);
1289         if (err < 0)
1290                 return err;
1291
1292         pcm->private_data = emu;
1293
1294         switch (device) {
1295         case 0:
1296           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1297           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1298           break;
1299         case 1:
1300           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1301           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1302           break;
1303         case 2:
1304           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1305           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1306           break;
1307         case 3:
1308           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1309           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1310           break;
1311         }
1312
1313         pcm->info_flags = 0;
1314         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1315         strcpy(pcm->name, "CA0106");
1316
1317         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
1318             substream;
1319             substream = substream->next) {
1320                 if ((err = snd_pcm_lib_preallocate_pages(substream,
1321                                                          SNDRV_DMA_TYPE_DEV,
1322                                                          snd_dma_pci_data(emu->pci),
1323                                                          64*1024, 64*1024)) < 0) /* FIXME: 32*1024 for sound buffer, between 32and64 for Periods table. */
1324                         return err;
1325         }
1326
1327         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
1328               substream;
1329               substream = substream->next) {
1330                 if ((err = snd_pcm_lib_preallocate_pages(substream,
1331                                                    SNDRV_DMA_TYPE_DEV,
1332                                                    snd_dma_pci_data(emu->pci),
1333                                                    64*1024, 64*1024)) < 0)
1334                         return err;
1335         }
1336
1337         emu->pcm[device] = pcm;
1338
1339         return 0;
1340 }
1341
1342 #define SPI_REG(reg, value)     (((reg) << SPI_REG_SHIFT) | (value))
1343 static unsigned int spi_dac_init[] = {
1344         SPI_REG(SPI_LDA1_REG,   SPI_DA_BIT_0dB), /* 0dB dig. attenuation */
1345         SPI_REG(SPI_RDA1_REG,   SPI_DA_BIT_0dB),
1346         SPI_REG(SPI_PL_REG,     SPI_PL_BIT_L_L | SPI_PL_BIT_R_R | SPI_IZD_BIT),
1347         SPI_REG(SPI_FMT_REG,    SPI_FMT_BIT_I2S | SPI_IWL_BIT_24),
1348         SPI_REG(SPI_LDA2_REG,   SPI_DA_BIT_0dB),
1349         SPI_REG(SPI_RDA2_REG,   SPI_DA_BIT_0dB),
1350         SPI_REG(SPI_LDA3_REG,   SPI_DA_BIT_0dB),
1351         SPI_REG(SPI_RDA3_REG,   SPI_DA_BIT_0dB),
1352         SPI_REG(SPI_MASTDA_REG, SPI_DA_BIT_0dB),
1353         SPI_REG(9,              0x00),
1354         SPI_REG(SPI_MS_REG,     SPI_DACD0_BIT | SPI_DACD1_BIT | SPI_DACD2_BIT),
1355         SPI_REG(12,             0x00),
1356         SPI_REG(SPI_LDA4_REG,   SPI_DA_BIT_0dB),
1357         SPI_REG(SPI_RDA4_REG,   SPI_DA_BIT_0dB | SPI_DA_BIT_UPDATE),
1358         SPI_REG(SPI_DACD4_REG,  0x00),
1359 };
1360
1361 static unsigned int i2c_adc_init[][2] = {
1362         { 0x17, 0x00 }, /* Reset */
1363         { 0x07, 0x00 }, /* Timeout */
1364         { 0x0b, 0x22 },  /* Interface control */
1365         { 0x0c, 0x22 },  /* Master mode control */
1366         { 0x0d, 0x08 },  /* Powerdown control */
1367         { 0x0e, 0xcf },  /* Attenuation Left  0x01 = -103dB, 0xff = 24dB */
1368         { 0x0f, 0xcf },  /* Attenuation Right 0.5dB steps */
1369         { 0x10, 0x7b },  /* ALC Control 1 */
1370         { 0x11, 0x00 },  /* ALC Control 2 */
1371         { 0x12, 0x32 },  /* ALC Control 3 */
1372         { 0x13, 0x00 },  /* Noise gate control */
1373         { 0x14, 0xa6 },  /* Limiter control */
1374         { 0x15, ADC_MUX_LINEIN },  /* ADC Mixer control */
1375 };
1376
1377 static void ca0106_init_chip(struct snd_ca0106 *chip, int resume)
1378 {
1379         int ch;
1380         unsigned int def_bits;
1381
1382         outl(0, chip->port + INTE);
1383
1384         /*
1385          *  Init to 0x02109204 :
1386          *  Clock accuracy    = 0     (1000ppm)
1387          *  Sample Rate       = 2     (48kHz)
1388          *  Audio Channel     = 1     (Left of 2)
1389          *  Source Number     = 0     (Unspecified)
1390          *  Generation Status = 1     (Original for Cat Code 12)
1391          *  Cat Code          = 12    (Digital Signal Mixer)
1392          *  Mode              = 0     (Mode 0)
1393          *  Emphasis          = 0     (None)
1394          *  CP                = 1     (Copyright unasserted)
1395          *  AN                = 0     (Audio data)
1396          *  P                 = 0     (Consumer)
1397          */
1398         def_bits =
1399                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1400                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1401                 SPCS_GENERATIONSTATUS | 0x00001200 |
1402                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT;
1403         if (!resume) {
1404                 chip->spdif_str_bits[0] = chip->spdif_bits[0] = def_bits;
1405                 chip->spdif_str_bits[1] = chip->spdif_bits[1] = def_bits;
1406                 chip->spdif_str_bits[2] = chip->spdif_bits[2] = def_bits;
1407                 chip->spdif_str_bits[3] = chip->spdif_bits[3] = def_bits;
1408         }
1409         /* Only SPCS1 has been tested */
1410         snd_ca0106_ptr_write(chip, SPCS1, 0, chip->spdif_str_bits[1]);
1411         snd_ca0106_ptr_write(chip, SPCS0, 0, chip->spdif_str_bits[0]);
1412         snd_ca0106_ptr_write(chip, SPCS2, 0, chip->spdif_str_bits[2]);
1413         snd_ca0106_ptr_write(chip, SPCS3, 0, chip->spdif_str_bits[3]);
1414
1415         snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1416         snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1417
1418         /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1419         outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
1420         outw(0x8000, chip->port + AC97DATA);
1421 #if 0 /* FIXME: what are these? */
1422         snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1423         snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1424         snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1425         snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1426 #endif
1427
1428         /* OSS drivers set this. */
1429         /* snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); */
1430
1431         /* Analog or Digital output */
1432         snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1433         /* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers.
1434          * Use 0x000f0000 for surround71
1435          */
1436         snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000);
1437
1438         chip->spdif_enable = 0; /* Set digital SPDIF output off */
1439         /*snd_ca0106_ptr_write(chip, 0x45, 0, 0);*/ /* Analogue out */
1440         /*snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00);*/ /* Digital out */
1441
1442         /* goes to 0x40c80000 when doing SPDIF IN/OUT */
1443         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000);
1444         /* (Mute) CAPTURE feedback into PLAYBACK volume.
1445          * Only lower 16 bits matter.
1446          */
1447         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff);
1448         /* SPDIF IN Volume */
1449         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000);
1450         /* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1451         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000);
1452
1453         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1454         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1455         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1456         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1457
1458         for (ch = 0; ch < 4; ch++) {
1459                 /* Only high 16 bits matter */
1460                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030);
1461                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1462 #if 0 /* Mute */
1463                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040);
1464                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040);
1465                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff);
1466                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff);
1467 #endif
1468         }
1469         if (chip->details->i2c_adc == 1) {
1470                 /* Select MIC, Line in, TAD in, AUX in */
1471                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1472                 /* Default to CAPTURE_SOURCE to i2s in */
1473                 if (!resume)
1474                         chip->capture_source = 3;
1475         } else if (chip->details->ac97 == 1) {
1476                 /* Default to AC97 in */
1477                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x444400e4);
1478                 /* Default to CAPTURE_SOURCE to AC97 in */
1479                 if (!resume)
1480                         chip->capture_source = 4;
1481         } else {
1482                 /* Select MIC, Line in, TAD in, AUX in */
1483                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1484                 /* Default to Set CAPTURE_SOURCE to i2s in */
1485                 if (!resume)
1486                         chip->capture_source = 3;
1487         }
1488
1489         if (chip->details->gpio_type == 2) {
1490                 /* The SB0438 use GPIO differently. */
1491                 /* FIXME: Still need to find out what the other GPIO bits do.
1492                  * E.g. For digital spdif out.
1493                  */
1494                 outl(0x0, chip->port+GPIO);
1495                 /* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1496                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1497         } else if (chip->details->gpio_type == 1) {
1498                 /* The SB0410 and SB0413 use GPIO differently. */
1499                 /* FIXME: Still need to find out what the other GPIO bits do.
1500                  * E.g. For digital spdif out.
1501                  */
1502                 outl(0x0, chip->port+GPIO);
1503                 /* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1504                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1505         } else {
1506                 outl(0x0, chip->port+GPIO);
1507                 outl(0x005f03a3, chip->port+GPIO); /* Analog */
1508                 /* outl(0x005f02a2, chip->port+GPIO); */ /* SPDIF */
1509         }
1510         snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1511
1512         /* outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG); */
1513         /* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1514         /* outl(0x00001409, chip->port+HCFG); */
1515         /* outl(0x00000009, chip->port+HCFG); */
1516         /* AC97 2.0, Enable outputs. */
1517         outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG);
1518
1519         if (chip->details->i2c_adc == 1) {
1520                 /* The SB0410 and SB0413 use I2C to control ADC. */
1521                 int size, n;
1522
1523                 size = ARRAY_SIZE(i2c_adc_init);
1524                 /* snd_printk(KERN_DEBUG "I2C:array size=0x%x\n", size); */
1525                 for (n = 0; n < size; n++)
1526                         snd_ca0106_i2c_write(chip, i2c_adc_init[n][0],
1527                                              i2c_adc_init[n][1]);
1528                 for (n = 0; n < 4; n++) {
1529                         chip->i2c_capture_volume[n][0] = 0xcf;
1530                         chip->i2c_capture_volume[n][1] = 0xcf;
1531                 }
1532                 chip->i2c_capture_source = 2; /* Line in */
1533                 /* Enable Line-in capture. MIC in currently untested. */
1534                 /* snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); */
1535         }
1536
1537         if (chip->details->spi_dac == 1) {
1538                 /* The SB0570 use SPI to control DAC. */
1539                 int size, n;
1540
1541                 size = ARRAY_SIZE(spi_dac_init);
1542                 for (n = 0; n < size; n++) {
1543                         int reg = spi_dac_init[n] >> SPI_REG_SHIFT;
1544
1545                         snd_ca0106_spi_write(chip, spi_dac_init[n]);
1546                         if (reg < ARRAY_SIZE(chip->spi_dac_reg))
1547                                 chip->spi_dac_reg[reg] = spi_dac_init[n];
1548                 }
1549         }
1550 }
1551
1552 static void ca0106_stop_chip(struct snd_ca0106 *chip)
1553 {
1554         /* disable interrupts */
1555         snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
1556         outl(0, chip->port + INTE);
1557         snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
1558         udelay(1000);
1559         /* disable audio */
1560         /* outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG); */
1561         outl(0, chip->port + HCFG);
1562         /* FIXME: We need to stop and DMA transfers here.
1563          *        But as I am not sure how yet, we cannot from the dma pages.
1564          * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
1565          */
1566 }
1567
1568 static int __devinit snd_ca0106_create(int dev, struct snd_card *card,
1569                                          struct pci_dev *pci,
1570                                          struct snd_ca0106 **rchip)
1571 {
1572         struct snd_ca0106 *chip;
1573         struct snd_ca0106_details *c;
1574         int err;
1575         static struct snd_device_ops ops = {
1576                 .dev_free = snd_ca0106_dev_free,
1577         };
1578
1579         *rchip = NULL;
1580
1581         err = pci_enable_device(pci);
1582         if (err < 0)
1583                 return err;
1584         if (pci_set_dma_mask(pci, DMA_32BIT_MASK) < 0 ||
1585             pci_set_consistent_dma_mask(pci, DMA_32BIT_MASK) < 0) {
1586                 printk(KERN_ERR "error to set 32bit mask DMA\n");
1587                 pci_disable_device(pci);
1588                 return -ENXIO;
1589         }
1590
1591         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1592         if (chip == NULL) {
1593                 pci_disable_device(pci);
1594                 return -ENOMEM;
1595         }
1596
1597         chip->card = card;
1598         chip->pci = pci;
1599         chip->irq = -1;
1600
1601         spin_lock_init(&chip->emu_lock);
1602
1603         chip->port = pci_resource_start(pci, 0);
1604         chip->res_port = request_region(chip->port, 0x20, "snd_ca0106");
1605         if (!chip->res_port) {
1606                 snd_ca0106_free(chip);
1607                 printk(KERN_ERR "cannot allocate the port\n");
1608                 return -EBUSY;
1609         }
1610
1611         if (request_irq(pci->irq, snd_ca0106_interrupt,
1612                         IRQF_SHARED, "snd_ca0106", chip)) {
1613                 snd_ca0106_free(chip);
1614                 printk(KERN_ERR "cannot grab irq\n");
1615                 return -EBUSY;
1616         }
1617         chip->irq = pci->irq;
1618
1619         /* This stores the periods table. */
1620         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1621                                 1024, &chip->buffer) < 0) {
1622                 snd_ca0106_free(chip);
1623                 return -ENOMEM;
1624         }
1625
1626         pci_set_master(pci);
1627         /* read serial */
1628         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1629         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1630         printk(KERN_INFO "snd-ca0106: Model %04x Rev %08x Serial %08x\n",
1631                chip->model, pci->revision, chip->serial);
1632         strcpy(card->driver, "CA0106");
1633         strcpy(card->shortname, "CA0106");
1634
1635         for (c = ca0106_chip_details; c->serial; c++) {
1636                 if (subsystem[dev]) {
1637                         if (c->serial == subsystem[dev])
1638                                 break;
1639                 } else if (c->serial == chip->serial)
1640                         break;
1641         }
1642         chip->details = c;
1643         if (subsystem[dev]) {
1644                 printk(KERN_INFO "snd-ca0106: Sound card name=%s, "
1645                        "subsystem=0x%x. Forced to subsystem=0x%x\n",
1646                        c->name, chip->serial, subsystem[dev]);
1647         }
1648
1649         sprintf(card->longname, "%s at 0x%lx irq %i",
1650                 c->name, chip->port, chip->irq);
1651
1652         ca0106_init_chip(chip, 0);
1653
1654         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1655         if (err < 0) {
1656                 snd_ca0106_free(chip);
1657                 return err;
1658         }
1659         *rchip = chip;
1660         return 0;
1661 }
1662
1663
1664 static void ca0106_midi_interrupt_enable(struct snd_ca_midi *midi, int intr)
1665 {
1666         snd_ca0106_intr_enable((struct snd_ca0106 *)(midi->dev_id), intr);
1667 }
1668
1669 static void ca0106_midi_interrupt_disable(struct snd_ca_midi *midi, int intr)
1670 {
1671         snd_ca0106_intr_disable((struct snd_ca0106 *)(midi->dev_id), intr);
1672 }
1673
1674 static unsigned char ca0106_midi_read(struct snd_ca_midi *midi, int idx)
1675 {
1676         return (unsigned char)snd_ca0106_ptr_read((struct snd_ca0106 *)(midi->dev_id),
1677                                                   midi->port + idx, 0);
1678 }
1679
1680 static void ca0106_midi_write(struct snd_ca_midi *midi, int data, int idx)
1681 {
1682         snd_ca0106_ptr_write((struct snd_ca0106 *)(midi->dev_id), midi->port + idx, 0, data);
1683 }
1684
1685 static struct snd_card *ca0106_dev_id_card(void *dev_id)
1686 {
1687         return ((struct snd_ca0106 *)dev_id)->card;
1688 }
1689
1690 static int ca0106_dev_id_port(void *dev_id)
1691 {
1692         return ((struct snd_ca0106 *)dev_id)->port;
1693 }
1694
1695 static int __devinit snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
1696 {
1697         struct snd_ca_midi *midi;
1698         char *name;
1699         int err;
1700
1701         if (channel == CA0106_MIDI_CHAN_B) {
1702                 name = "CA0106 MPU-401 (UART) B";
1703                 midi =  &chip->midi2;
1704                 midi->tx_enable = INTE_MIDI_TX_B;
1705                 midi->rx_enable = INTE_MIDI_RX_B;
1706                 midi->ipr_tx = IPR_MIDI_TX_B;
1707                 midi->ipr_rx = IPR_MIDI_RX_B;
1708                 midi->port = MIDI_UART_B_DATA;
1709         } else {
1710                 name = "CA0106 MPU-401 (UART)";
1711                 midi =  &chip->midi;
1712                 midi->tx_enable = INTE_MIDI_TX_A;
1713                 midi->rx_enable = INTE_MIDI_TX_B;
1714                 midi->ipr_tx = IPR_MIDI_TX_A;
1715                 midi->ipr_rx = IPR_MIDI_RX_A;
1716                 midi->port = MIDI_UART_A_DATA;
1717         }
1718
1719         midi->reset = CA0106_MPU401_RESET;
1720         midi->enter_uart = CA0106_MPU401_ENTER_UART;
1721         midi->ack = CA0106_MPU401_ACK;
1722
1723         midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1724         midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1725
1726         midi->channel = channel;
1727
1728         midi->interrupt_enable = ca0106_midi_interrupt_enable;
1729         midi->interrupt_disable = ca0106_midi_interrupt_disable;
1730
1731         midi->read = ca0106_midi_read;
1732         midi->write = ca0106_midi_write;
1733
1734         midi->get_dev_id_card = ca0106_dev_id_card;
1735         midi->get_dev_id_port = ca0106_dev_id_port;
1736
1737         midi->dev_id = chip;
1738
1739         if ((err = ca_midi_init(chip, midi, 0, name)) < 0)
1740                 return err;
1741
1742         return 0;
1743 }
1744
1745
1746 static int __devinit snd_ca0106_probe(struct pci_dev *pci,
1747                                         const struct pci_device_id *pci_id)
1748 {
1749         static int dev;
1750         struct snd_card *card;
1751         struct snd_ca0106 *chip;
1752         int i, err;
1753
1754         if (dev >= SNDRV_CARDS)
1755                 return -ENODEV;
1756         if (!enable[dev]) {
1757                 dev++;
1758                 return -ENOENT;
1759         }
1760
1761         err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
1762         if (err < 0)
1763                 return err;
1764
1765         err = snd_ca0106_create(dev, card, pci, &chip);
1766         if (err < 0)
1767                 goto error;
1768         card->private_data = chip;
1769
1770         for (i = 0; i < 4; i++) {
1771                 err = snd_ca0106_pcm(chip, i);
1772                 if (err < 0)
1773                         goto error;
1774         }
1775
1776         if (chip->details->ac97 == 1) {
1777                 /* The SB0410 and SB0413 do not have an AC97 chip. */
1778                 err = snd_ca0106_ac97(chip);
1779                 if (err < 0)
1780                         goto error;
1781         }
1782         err = snd_ca0106_mixer(chip);
1783         if (err < 0)
1784                 goto error;
1785
1786         snd_printdd("ca0106: probe for MIDI channel A ...");
1787         err = snd_ca0106_midi(chip, CA0106_MIDI_CHAN_A);
1788         if (err < 0)
1789                 goto error;
1790         snd_printdd(" done.\n");
1791
1792 #ifdef CONFIG_PROC_FS
1793         snd_ca0106_proc_init(chip);
1794 #endif
1795
1796         snd_card_set_dev(card, &pci->dev);
1797
1798         err = snd_card_register(card);
1799         if (err < 0)
1800                 goto error;
1801
1802         pci_set_drvdata(pci, card);
1803         dev++;
1804         return 0;
1805
1806  error:
1807         snd_card_free(card);
1808         return err;
1809 }
1810
1811 static void __devexit snd_ca0106_remove(struct pci_dev *pci)
1812 {
1813         snd_card_free(pci_get_drvdata(pci));
1814         pci_set_drvdata(pci, NULL);
1815 }
1816
1817 #ifdef CONFIG_PM
1818 static int snd_ca0106_suspend(struct pci_dev *pci, pm_message_t state)
1819 {
1820         struct snd_card *card = pci_get_drvdata(pci);
1821         struct snd_ca0106 *chip = card->private_data;
1822         int i;
1823
1824         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1825         for (i = 0; i < 4; i++)
1826                 snd_pcm_suspend_all(chip->pcm[i]);
1827         if (chip->details->ac97)
1828                 snd_ac97_suspend(chip->ac97);
1829         snd_ca0106_mixer_suspend(chip);
1830
1831         ca0106_stop_chip(chip);
1832
1833         pci_disable_device(pci);
1834         pci_save_state(pci);
1835         pci_set_power_state(pci, pci_choose_state(pci, state));
1836         return 0;
1837 }
1838
1839 static int snd_ca0106_resume(struct pci_dev *pci)
1840 {
1841         struct snd_card *card = pci_get_drvdata(pci);
1842         struct snd_ca0106 *chip = card->private_data;
1843         int i;
1844
1845         pci_set_power_state(pci, PCI_D0);
1846         pci_restore_state(pci);
1847
1848         if (pci_enable_device(pci) < 0) {
1849                 snd_card_disconnect(card);
1850                 return -EIO;
1851         }
1852
1853         pci_set_master(pci);
1854
1855         ca0106_init_chip(chip, 1);
1856
1857         if (chip->details->ac97)
1858                 snd_ac97_resume(chip->ac97);
1859         snd_ca0106_mixer_resume(chip);
1860         if (chip->details->spi_dac) {
1861                 for (i = 0; i < ARRAY_SIZE(chip->spi_dac_reg); i++)
1862                         snd_ca0106_spi_write(chip, chip->spi_dac_reg[i]);
1863         }
1864
1865         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1866         return 0;
1867 }
1868 #endif
1869
1870 // PCI IDs
1871 static struct pci_device_id snd_ca0106_ids[] = {
1872         { 0x1102, 0x0007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },    /* Audigy LS or Live 24bit */
1873         { 0, }
1874 };
1875 MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1876
1877 // pci_driver definition
1878 static struct pci_driver driver = {
1879         .name = "CA0106",
1880         .id_table = snd_ca0106_ids,
1881         .probe = snd_ca0106_probe,
1882         .remove = __devexit_p(snd_ca0106_remove),
1883 #ifdef CONFIG_PM
1884         .suspend = snd_ca0106_suspend,
1885         .resume = snd_ca0106_resume,
1886 #endif
1887 };
1888
1889 // initialization of the module
1890 static int __init alsa_card_ca0106_init(void)
1891 {
1892         return pci_register_driver(&driver);
1893 }
1894
1895 // clean up the module
1896 static void __exit alsa_card_ca0106_exit(void)
1897 {
1898         pci_unregister_driver(&driver);
1899 }
1900
1901 module_init(alsa_card_ca0106_init)
1902 module_exit(alsa_card_ca0106_exit)