sound/pci/ca0106/ca0106_main.c

   1 /*
   2  *  Copyright (c) 2004 James Courtier-Dutton <James@superbug.demon.co.uk>
   3  *  Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit
   4  *  Version: 0.0.25
   5  *
   6  *  FEATURES currently supported:
   7  *    Front, Rear and Center/LFE.
   8  *    Surround40 and Surround51.
   9  *    Capture from MIC an LINE IN input.
  10  *    SPDIF digital playback of PCM stereo and AC3/DTS works.
  11  *    (One can use a standard mono mini-jack to one RCA plugs cable.
  12  *     or one can use a standard stereo mini-jack to two RCA plugs cable.
  13  *     Plug one of the RCA plugs into the Coax input of the external decoder/receiver.)
  14  *    ( In theory one could output 3 different AC3 streams at once, to 3 different SPDIF outputs. )
  15  *    Notes on how to capture sound:
  16  *      The AC97 is used in the PLAYBACK direction.
  17  *      The output from the AC97 chip, instead of reaching the speakers, is fed into the Philips 1361T ADC.
  18  *      So, to record from the MIC, set the MIC Playback volume to max,
  19  *      unmute the MIC and turn up the MASTER Playback volume.
  20  *      So, to prevent feedback when capturing, minimise the "Capture feedback into Playback" volume.
  21  *
  22  *    The only playback controls that currently do anything are: -
  23  *    Analog Front
  24  *    Analog Rear
  25  *    Analog Center/LFE
  26  *    SPDIF Front
  27  *    SPDIF Rear
  28  *    SPDIF Center/LFE
  29  *
  30  *    For capture from Mic in or Line in.
  31  *    Digital/Analog ( switch must be in Analog mode for CAPTURE. )
  32  *
  33  *    CAPTURE feedback into PLAYBACK
  34  *
  35  *  Changelog:
  36  *    Support interrupts per period.
  37  *    Removed noise from Center/LFE channel when in Analog mode.
  38  *    Rename and remove mixer controls.
  39  *  0.0.6
  40  *    Use separate card based DMA buffer for periods table list.
  41  *  0.0.7
  42  *    Change remove and rename ctrls into lists.
  43  *  0.0.8
  44  *    Try to fix capture sources.
  45  *  0.0.9
  46  *    Fix AC3 output.
  47  *    Enable S32_LE format support.
  48  *  0.0.10
  49  *    Enable playback 48000 and 96000 rates. (Rates other that these do not work, even with "plug:front".)
  50  *  0.0.11
  51  *    Add Model name recognition.
  52  *  0.0.12
  53  *    Correct interrupt timing. interrupt at end of period, instead of in the middle of a playback period.
  54  *    Remove redundent "voice" handling.
  55  *  0.0.13
  56  *    Single trigger call for multi channels.
  57  *  0.0.14
  58  *    Set limits based on what the sound card hardware can do.
  59  *    playback periods_min=2, periods_max=8
  60  *    capture hw constraints require period_size = n * 64 bytes.
  61  *    playback hw constraints require period_size = n * 64 bytes.
  62  *  0.0.15
  63  *    Minor updates.
  64  *  0.0.16
  65  *    Implement 192000 sample rate.
  66  *  0.0.17
  67  *    Add support for SB0410 and SB0413.
  68  *  0.0.18
  69  *    Modified Copyright message.
  70  *  0.0.19
  71  *    Finally fix support for SB Live 24 bit. SB0410 and SB0413.
  72  *    The output codec needs resetting, otherwise all output is muted.
  73  *  0.0.20
  74  *    Merge "pci_disable_device(pci);" fixes.
  75  *  0.0.21
  76  *    Add 4 capture channels. (SPDIF only comes in on channel 0. )
  77  *    Add SPDIF capture using optional digital I/O module for SB Live 24bit. (Analog capture does not yet work.)
  78  *  0.0.22
  79  *    Add support for MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97. From kiksen, bug #901
  80  *  0.0.23
  81  *    Implement support for Line-in capture on SB Live 24bit.
  82  *  0.0.24
  83  *    Add support for mute control on SB Live 24bit (cards w/ SPI DAC)
  84  *  0.0.25
  85  *    Powerdown SPI DAC channels when not in use
  86  *
  87  *  BUGS:
  88  *    Some stability problems when unloading the snd-ca0106 kernel module.
  89  *    --
  90  *
  91  *  TODO:
  92  *    4 Capture channels, only one implemented so far.
  93  *    Other capture rates apart from 48khz not implemented.
  94  *    MIDI
  95  *    --
  96  *  GENERAL INFO:
  97  *    Model: SB0310
  98  *    P17 Chip: CA0106-DAT
  99  *    AC97 Codec: STAC 9721
 100  *    ADC: Philips 1361T (Stereo 24bit)
 101  *    DAC: WM8746EDS (6-channel, 24bit, 192Khz)
 102  *
 103  *  GENERAL INFO:
 104  *    Model: SB0410
 105  *    P17 Chip: CA0106-DAT
 106  *    AC97 Codec: None
 107  *    ADC: WM8775EDS (4 Channel)
 108  *    DAC: CS4382 (114 dB, 24-Bit, 192 kHz, 8-Channel D/A Converter with DSD Support)
 109  *    SPDIF Out control switches between Mic in and SPDIF out.
 110  *    No sound out or mic input working yet.
 111  *
 112  *  GENERAL INFO:
 113  *    Model: SB0413
 114  *    P17 Chip: CA0106-DAT
 115  *    AC97 Codec: None.
 116  *    ADC: Unknown
 117  *    DAC: Unknown
 118  *    Trying to handle it like the SB0410.
 119  *
 120  *  This code was initally based on code from ALSA's emu10k1x.c which is:
 121  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
 122  *
 123  *   This program is free software; you can redistribute it and/or modify
 124  *   it under the terms of the GNU General Public License as published by
 125  *   the Free Software Foundation; either version 2 of the License, or
 126  *   (at your option) any later version.
 127  *
 128  *   This program is distributed in the hope that it will be useful,
 129  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 130  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 131  *   GNU General Public License for more details.
 132  *
 133  *   You should have received a copy of the GNU General Public License
 134  *   along with this program; if not, write to the Free Software
 135  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 136  *
 137  */
 138 #include <linux/delay.h>
 139 #include <linux/init.h>
 140 #include <linux/interrupt.h>
 141 #include <linux/pci.h>
 142 #include <linux/slab.h>
 143 #include <linux/moduleparam.h>
 144 #include <linux/dma-mapping.h>
 145 #include <sound/core.h>
 146 #include <sound/initval.h>
 147 #include <sound/pcm.h>
 148 #include <sound/ac97_codec.h>
 149 #include <sound/info.h>
 150
 151 MODULE_AUTHOR("James Courtier-Dutton <James@superbug.demon.co.uk>");
 152 MODULE_DESCRIPTION("CA0106");
 153 MODULE_LICENSE("GPL");
 154 MODULE_SUPPORTED_DEVICE("{{Creative,SB CA0106 chip}}");
 155
 156 // module parameters (see "Module Parameters")
 157 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
 158 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
 159 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
 160 static uint subsystem[SNDRV_CARDS]; /* Force card subsystem model */
 161
 162 module_param_array(index, int, NULL, 0444);
 163 MODULE_PARM_DESC(index, "Index value for the CA0106 soundcard.");
 164 module_param_array(id, charp, NULL, 0444);
 165 MODULE_PARM_DESC(id, "ID string for the CA0106 soundcard.");
 166 module_param_array(enable, bool, NULL, 0444);
 167 MODULE_PARM_DESC(enable, "Enable the CA0106 soundcard.");
 168 module_param_array(subsystem, uint, NULL, 0444);
 169 MODULE_PARM_DESC(subsystem, "Force card subsystem model.");
 170
 171 #include "ca0106.h"
 172
 173 static struct snd_ca0106_details ca0106_chip_details[] = {
 174          /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
 175          /* It is really just a normal SB Live 24bit. */
 176          /* Tested:
 177           * See ALSA bug#3251
 178           */
 179          { .serial = 0x10131102,
 180            .name   = "X-Fi Extreme Audio [SBxxxx]",
 181            .gpio_type = 1,
 182            .i2c_adc = 1 } ,
 183          /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
 184          /* It is really just a normal SB Live 24bit. */
 185          /*
 186           * CTRL:CA0111-WTLF
 187           * ADC: WM8775SEDS
 188           * DAC: CS4382-KQZ
 189           */
 190          /* Tested:
 191           * Playback on front, rear, center/lfe speakers
 192           * Capture from Mic in.
 193           * Not-Tested:
 194           * Capture from Line in.
 195           * Playback to digital out.
 196           */
 197          { .serial = 0x10121102,
 198            .name   = "X-Fi Extreme Audio [SB0790]",
 199            .gpio_type = 1,
 200            .i2c_adc = 1 } ,
 201          /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
 202          /* AudigyLS[SB0310] */
 203          { .serial = 0x10021102,
 204            .name   = "AudigyLS [SB0310]",
 205            .ac97   = 1 } ,
 206          /* Unknown AudigyLS that also says SB0310 on it */
 207          { .serial = 0x10051102,
 208            .name   = "AudigyLS [SB0310b]",
 209            .ac97   = 1 } ,
 210          /* New Sound Blaster Live! 7.1 24bit. This does not have an AC97. 53SB041000001 */
 211          { .serial = 0x10061102,
 212            .name   = "Live! 7.1 24bit [SB0410]",
 213            .gpio_type = 1,
 214            .i2c_adc = 1 } ,
 215          /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
 216          { .serial = 0x10071102,
 217            .name   = "Live! 7.1 24bit [SB0413]",
 218            .gpio_type = 1,
 219            .i2c_adc = 1 } ,
 220          /* New Audigy SE. Has a different DAC. */
 221          /* SB0570:
 222           * CTRL:CA0106-DAT
 223           * ADC: WM8775EDS
 224           * DAC: WM8768GEDS
 225           */
 226          { .serial = 0x100a1102,
 227            .name   = "Audigy SE [SB0570]",
 228            .gpio_type = 1,
 229            .i2c_adc = 1,
 230            .spi_dac = 1 } ,
 231          /* New Audigy LS. Has a different DAC. */
 232          /* SB0570:
 233           * CTRL:CA0106-DAT
 234           * ADC: WM8775EDS
 235           * DAC: WM8768GEDS
 236           */
 237          { .serial = 0x10111102,
 238            .name   = "Audigy SE OEM [SB0570a]",
 239            .gpio_type = 1,
 240            .i2c_adc = 1,
 241            .spi_dac = 1 } ,
 242         /* Sound Blaster 5.1vx
 243          * Tested: Playback on front, rear, center/lfe speakers
 244          * Not-Tested: Capture
 245          */
 246         { .serial = 0x10041102,
 247           .name   = "Sound Blaster 5.1vx [SB1070]",
 248           .gpio_type = 1,
 249           .i2c_adc = 0,
 250           .spi_dac = 1
 251          } ,
 252          /* MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97 */
 253          /* SB0438
 254           * CTRL:CA0106-DAT
 255           * ADC: WM8775SEDS
 256           * DAC: CS4382-KQZ
 257           */
 258          { .serial = 0x10091462,
 259            .name   = "MSI K8N Diamond MB [SB0438]",
 260            .gpio_type = 2,
 261            .i2c_adc = 1 } ,
 262          /* MSI K8N Diamond PLUS MB */
 263          { .serial = 0x10091102,
 264            .name   = "MSI K8N Diamond MB",
 265            .gpio_type = 2,
 266            .i2c_adc = 1,
 267            .spi_dac = 1 } ,
 268         /* Giga-byte GA-G1975X mobo
 269          * Novell bnc#395807
 270          */
 271         /* FIXME: the GPIO and I2C setting aren't tested well */
 272         { .serial = 0x1458a006,
 273           .name = "Giga-byte GA-G1975X",
 274           .gpio_type = 1,
 275           .i2c_adc = 1 },
 276          /* Shuttle XPC SD31P which has an onboard Creative Labs
 277           * Sound Blaster Live! 24-bit EAX
 278           * high-definition 7.1 audio processor".
 279           * Added using info from andrewvegan in alsa bug #1298
 280           */
 281          { .serial = 0x30381297,
 282            .name   = "Shuttle XPC SD31P [SD31P]",
 283            .gpio_type = 1,
 284            .i2c_adc = 1 } ,
 285         /* Shuttle XPC SD11G5 which has an onboard Creative Labs
 286          * Sound Blaster Live! 24-bit EAX
 287          * high-definition 7.1 audio processor".
 288          * Fixes ALSA bug#1600
 289          */
 290         { .serial = 0x30411297,
 291           .name = "Shuttle XPC SD11G5 [SD11G5]",
 292           .gpio_type = 1,
 293           .i2c_adc = 1 } ,
 294          { .serial = 0,
 295            .name   = "AudigyLS [Unknown]" }
 296 };
 297
 298 /* hardware definition */
 299 static struct snd_pcm_hardware snd_ca0106_playback_hw = {
 300         .info =                 SNDRV_PCM_INFO_MMAP |
 301                                 SNDRV_PCM_INFO_INTERLEAVED |
 302                                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 303                                 SNDRV_PCM_INFO_MMAP_VALID |
 304                                 SNDRV_PCM_INFO_SYNC_START,
 305         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
 306         .rates =                (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |
 307                                  SNDRV_PCM_RATE_192000),
 308         .rate_min =             48000,
 309         .rate_max =             192000,
 310         .channels_min =         2,  //1,
 311         .channels_max =         2,  //6,
 312         .buffer_bytes_max =     ((65536 - 64) * 8),
 313         .period_bytes_min =     64,
 314         .period_bytes_max =     (65536 - 64),
 315         .periods_min =          2,
 316         .periods_max =          8,
 317         .fifo_size =            0,
 318 };
 319
 320 static struct snd_pcm_hardware snd_ca0106_capture_hw = {
 321         .info =                 (SNDRV_PCM_INFO_MMAP |
 322                                  SNDRV_PCM_INFO_INTERLEAVED |
 323                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 324                                  SNDRV_PCM_INFO_MMAP_VALID),
 325         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
 326 #if 0 /* FIXME: looks like 44.1kHz capture causes noisy output on 48kHz */
 327         .rates =                (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
 328                                  SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
 329         .rate_min =             44100,
 330 #else
 331         .rates =                (SNDRV_PCM_RATE_48000 |
 332                                  SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
 333         .rate_min =             48000,
 334 #endif /* FIXME */
 335         .rate_max =             192000,
 336         .channels_min =         2,
 337         .channels_max =         2,
 338         .buffer_bytes_max =     65536 - 128,
 339         .period_bytes_min =     64,
 340         .period_bytes_max =     32768 - 64,
 341         .periods_min =          2,
 342         .periods_max =          2,
 343         .fifo_size =            0,
 344 };
 345
 346 unsigned int snd_ca0106_ptr_read(struct snd_ca0106 * emu,
 347                                           unsigned int reg,
 348                                           unsigned int chn)
 349 {
 350         unsigned long flags;
 351         unsigned int regptr, val;
 352
 353         regptr = (reg << 16) | chn;
 354
 355         spin_lock_irqsave(&emu->emu_lock, flags);
 356         outl(regptr, emu->port + PTR);
 357         val = inl(emu->port + DATA);
 358         spin_unlock_irqrestore(&emu->emu_lock, flags);
 359         return val;
 360 }
 361
 362 void snd_ca0106_ptr_write(struct snd_ca0106 *emu,
 363                                    unsigned int reg,
 364                                    unsigned int chn,
 365                                    unsigned int data)
 366 {
 367         unsigned int regptr;
 368         unsigned long flags;
 369
 370         regptr = (reg << 16) | chn;
 371
 372         spin_lock_irqsave(&emu->emu_lock, flags);
 373         outl(regptr, emu->port + PTR);
 374         outl(data, emu->port + DATA);
 375         spin_unlock_irqrestore(&emu->emu_lock, flags);
 376 }
 377
 378 int snd_ca0106_spi_write(struct snd_ca0106 * emu,
 379                                    unsigned int data)
 380 {
 381         unsigned int reset, set;
 382         unsigned int reg, tmp;
 383         int n, result;
 384         reg = SPI;
 385         if (data > 0xffff) /* Only 16bit values allowed */
 386                 return 1;
 387         tmp = snd_ca0106_ptr_read(emu, reg, 0);
 388         reset = (tmp & ~0x3ffff) | 0x20000; /* Set xxx20000 */
 389         set = reset | 0x10000; /* Set xxx1xxxx */
 390         snd_ca0106_ptr_write(emu, reg, 0, reset | data);
 391         tmp = snd_ca0106_ptr_read(emu, reg, 0); /* write post */
 392         snd_ca0106_ptr_write(emu, reg, 0, set | data);
 393         result = 1;
 394         /* Wait for status bit to return to 0 */
 395         for (n = 0; n < 100; n++) {
 396                 udelay(10);
 397                 tmp = snd_ca0106_ptr_read(emu, reg, 0);
 398                 if (!(tmp & 0x10000)) {
 399                         result = 0;
 400                         break;
 401                 }
 402         }
 403         if (result) /* Timed out */
 404                 return 1;
 405         snd_ca0106_ptr_write(emu, reg, 0, reset | data);
 406         tmp = snd_ca0106_ptr_read(emu, reg, 0); /* Write post */
 407         return 0;
 408 }
 409
 410 /* The ADC does not support i2c read, so only write is implemented */
 411 int snd_ca0106_i2c_write(struct snd_ca0106 *emu,
 412                                 u32 reg,
 413                                 u32 value)
 414 {
 415         u32 tmp;
 416         int timeout = 0;
 417         int status;
 418         int retry;
 419         if ((reg > 0x7f) || (value > 0x1ff)) {
 420                 snd_printk(KERN_ERR "i2c_write: invalid values.\n");
 421                 return -EINVAL;
 422         }
 423
 424         tmp = reg << 25 | value << 16;
 425         /*
 426         snd_printk(KERN_DEBUG "I2C-write:reg=0x%x, value=0x%x\n", reg, value);
 427         */
 428         /* Not sure what this I2C channel controls. */
 429         /* snd_ca0106_ptr_write(emu, I2C_D0, 0, tmp); */
 430
 431         /* This controls the I2C connected to the WM8775 ADC Codec */
 432         snd_ca0106_ptr_write(emu, I2C_D1, 0, tmp);
 433
 434         for (retry = 0; retry < 10; retry++) {
 435                 /* Send the data to i2c */
 436                 //tmp = snd_ca0106_ptr_read(emu, I2C_A, 0);
 437                 //tmp = tmp & ~(I2C_A_ADC_READ|I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD_MASK);
 438                 tmp = 0;
 439                 tmp = tmp | (I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD);
 440                 snd_ca0106_ptr_write(emu, I2C_A, 0, tmp);
 441
 442                 /* Wait till the transaction ends */
 443                 while (1) {
 444                         status = snd_ca0106_ptr_read(emu, I2C_A, 0);
 445                         /*snd_printk(KERN_DEBUG "I2C:status=0x%x\n", status);*/
 446                         timeout++;
 447                         if ((status & I2C_A_ADC_START) == 0)
 448                                 break;
 449
 450                         if (timeout > 1000)
 451                                 break;
 452                 }
 453                 //Read back and see if the transaction is successful
 454                 if ((status & I2C_A_ADC_ABORT) == 0)
 455                         break;
 456         }
 457
 458         if (retry == 10) {
 459                 snd_printk(KERN_ERR "Writing to ADC failed!\n");
 460                 return -EINVAL;
 461         }
 462
 463         return 0;
 464 }
 465
 466
 467 static void snd_ca0106_intr_enable(struct snd_ca0106 *emu, unsigned int intrenb)
 468 {
 469         unsigned long flags;
 470         unsigned int intr_enable;
 471
 472         spin_lock_irqsave(&emu->emu_lock, flags);
 473         intr_enable = inl(emu->port + INTE) | intrenb;
 474         outl(intr_enable, emu->port + INTE);
 475         spin_unlock_irqrestore(&emu->emu_lock, flags);
 476 }
 477
 478 static void snd_ca0106_intr_disable(struct snd_ca0106 *emu, unsigned int intrenb)
 479 {
 480         unsigned long flags;
 481         unsigned int intr_enable;
 482
 483         spin_lock_irqsave(&emu->emu_lock, flags);
 484         intr_enable = inl(emu->port + INTE) & ~intrenb;
 485         outl(intr_enable, emu->port + INTE);
 486         spin_unlock_irqrestore(&emu->emu_lock, flags);
 487 }
 488
 489
 490 static void snd_ca0106_pcm_free_substream(struct snd_pcm_runtime *runtime)
 491 {
 492         kfree(runtime->private_data);
 493 }
 494
 495 static const int spi_dacd_reg[] = {
 496         [PCM_FRONT_CHANNEL]     = SPI_DACD4_REG,
 497         [PCM_REAR_CHANNEL]      = SPI_DACD0_REG,
 498         [PCM_CENTER_LFE_CHANNEL]= SPI_DACD2_REG,
 499         [PCM_UNKNOWN_CHANNEL]   = SPI_DACD1_REG,
 500 };
 501 static const int spi_dacd_bit[] = {
 502         [PCM_FRONT_CHANNEL]     = SPI_DACD4_BIT,
 503         [PCM_REAR_CHANNEL]      = SPI_DACD0_BIT,
 504         [PCM_CENTER_LFE_CHANNEL]= SPI_DACD2_BIT,
 505         [PCM_UNKNOWN_CHANNEL]   = SPI_DACD1_BIT,
 506 };
 507
 508 static void restore_spdif_bits(struct snd_ca0106 *chip, int idx)
 509 {
 510         if (chip->spdif_str_bits[idx] != chip->spdif_bits[idx]) {
 511                 chip->spdif_str_bits[idx] = chip->spdif_bits[idx];
 512                 snd_ca0106_ptr_write(chip, SPCS0 + idx, 0,
 513                                      chip->spdif_str_bits[idx]);
 514         }
 515 }
 516
 517 static int snd_ca0106_pcm_power_dac(struct snd_ca0106 *chip, int channel_id,
 518                                     int power)
 519 {
 520         if (chip->details->spi_dac) {
 521                 const int reg = spi_dacd_reg[channel_id];
 522
 523                 if (power)
 524                         /* Power up */
 525                         chip->spi_dac_reg[reg] &= ~spi_dacd_bit[channel_id];
 526                 else
 527                         /* Power down */
 528                         chip->spi_dac_reg[reg] |= spi_dacd_bit[channel_id];
 529                 return snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
 530         }
 531         return 0;
 532 }
 533
 534 /* open_playback callback */
 535 static int snd_ca0106_pcm_open_playback_channel(struct snd_pcm_substream *substream,
 536                                                 int channel_id)
 537 {
 538         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 539         struct snd_ca0106_channel *channel = &(chip->playback_channels[channel_id]);
 540         struct snd_ca0106_pcm *epcm;
 541         struct snd_pcm_runtime *runtime = substream->runtime;
 542         int err;
 543
 544         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 545
 546         if (epcm == NULL)
 547                 return -ENOMEM;
 548         epcm->emu = chip;
 549         epcm->substream = substream;
 550         epcm->channel_id=channel_id;
 551
 552         runtime->private_data = epcm;
 553         runtime->private_free = snd_ca0106_pcm_free_substream;
 554
 555         runtime->hw = snd_ca0106_playback_hw;
 556
 557         channel->emu = chip;
 558         channel->number = channel_id;
 559
 560         channel->use = 1;
 561         /*
 562         printk(KERN_DEBUG "open:channel_id=%d, chip=%p, channel=%p\n",
 563                channel_id, chip, channel);
 564         */
 565         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 566         channel->epcm = epcm;
 567         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 568                 return err;
 569         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 570                 return err;
 571         snd_pcm_set_sync(substream);
 572
 573         /* Front channel dac should already be on */
 574         if (channel_id != PCM_FRONT_CHANNEL) {
 575                 err = snd_ca0106_pcm_power_dac(chip, channel_id, 1);
 576                 if (err < 0)
 577                         return err;
 578         }
 579
 580         restore_spdif_bits(chip, channel_id);
 581
 582         return 0;
 583 }
 584
 585 /* close callback */
 586 static int snd_ca0106_pcm_close_playback(struct snd_pcm_substream *substream)
 587 {
 588         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 589         struct snd_pcm_runtime *runtime = substream->runtime;
 590         struct snd_ca0106_pcm *epcm = runtime->private_data;
 591         chip->playback_channels[epcm->channel_id].use = 0;
 592
 593         restore_spdif_bits(chip, epcm->channel_id);
 594
 595         /* Front channel dac should stay on */
 596         if (epcm->channel_id != PCM_FRONT_CHANNEL) {
 597                 int err;
 598                 err = snd_ca0106_pcm_power_dac(chip, epcm->channel_id, 0);
 599                 if (err < 0)
 600                         return err;
 601         }
 602
 603         /* FIXME: maybe zero others */
 604         return 0;
 605 }
 606
 607 static int snd_ca0106_pcm_open_playback_front(struct snd_pcm_substream *substream)
 608 {
 609         return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
 610 }
 611
 612 static int snd_ca0106_pcm_open_playback_center_lfe(struct snd_pcm_substream *substream)
 613 {
 614         return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
 615 }
 616
 617 static int snd_ca0106_pcm_open_playback_unknown(struct snd_pcm_substream *substream)
 618 {
 619         return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
 620 }
 621
 622 static int snd_ca0106_pcm_open_playback_rear(struct snd_pcm_substream *substream)
 623 {
 624         return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
 625 }
 626
 627 /* open_capture callback */
 628 static int snd_ca0106_pcm_open_capture_channel(struct snd_pcm_substream *substream,
 629                                                int channel_id)
 630 {
 631         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 632         struct snd_ca0106_channel *channel = &(chip->capture_channels[channel_id]);
 633         struct snd_ca0106_pcm *epcm;
 634         struct snd_pcm_runtime *runtime = substream->runtime;
 635         int err;
 636
 637         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 638         if (epcm == NULL) {
 639                 snd_printk(KERN_ERR "open_capture_channel: failed epcm alloc\n");
 640                 return -ENOMEM;
 641         }
 642         epcm->emu = chip;
 643         epcm->substream = substream;
 644         epcm->channel_id=channel_id;
 645
 646         runtime->private_data = epcm;
 647         runtime->private_free = snd_ca0106_pcm_free_substream;
 648
 649         runtime->hw = snd_ca0106_capture_hw;
 650
 651         channel->emu = chip;
 652         channel->number = channel_id;
 653
 654         channel->use = 1;
 655         /*
 656         printk(KERN_DEBUG "open:channel_id=%d, chip=%p, channel=%p\n",
 657                channel_id, chip, channel);
 658         */
 659         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 660         channel->epcm = epcm;
 661         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 662                 return err;
 663         //snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
 664         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 665                 return err;
 666         return 0;
 667 }
 668
 669 /* close callback */
 670 static int snd_ca0106_pcm_close_capture(struct snd_pcm_substream *substream)
 671 {
 672         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 673         struct snd_pcm_runtime *runtime = substream->runtime;
 674         struct snd_ca0106_pcm *epcm = runtime->private_data;
 675         chip->capture_channels[epcm->channel_id].use = 0;
 676         /* FIXME: maybe zero others */
 677         return 0;
 678 }
 679
 680 static int snd_ca0106_pcm_open_0_capture(struct snd_pcm_substream *substream)
 681 {
 682         return snd_ca0106_pcm_open_capture_channel(substream, 0);
 683 }
 684
 685 static int snd_ca0106_pcm_open_1_capture(struct snd_pcm_substream *substream)
 686 {
 687         return snd_ca0106_pcm_open_capture_channel(substream, 1);
 688 }
 689
 690 static int snd_ca0106_pcm_open_2_capture(struct snd_pcm_substream *substream)
 691 {
 692         return snd_ca0106_pcm_open_capture_channel(substream, 2);
 693 }
 694
 695 static int snd_ca0106_pcm_open_3_capture(struct snd_pcm_substream *substream)
 696 {
 697         return snd_ca0106_pcm_open_capture_channel(substream, 3);
 698 }
 699
 700 /* hw_params callback */
 701 static int snd_ca0106_pcm_hw_params_playback(struct snd_pcm_substream *substream,
 702                                       struct snd_pcm_hw_params *hw_params)
 703 {
 704         return snd_pcm_lib_malloc_pages(substream,
 705                                         params_buffer_bytes(hw_params));
 706 }
 707
 708 /* hw_free callback */
 709 static int snd_ca0106_pcm_hw_free_playback(struct snd_pcm_substream *substream)
 710 {
 711         return snd_pcm_lib_free_pages(substream);
 712 }
 713
 714 /* hw_params callback */
 715 static int snd_ca0106_pcm_hw_params_capture(struct snd_pcm_substream *substream,
 716                                       struct snd_pcm_hw_params *hw_params)
 717 {
 718         return snd_pcm_lib_malloc_pages(substream,
 719                                         params_buffer_bytes(hw_params));
 720 }
 721
 722 /* hw_free callback */
 723 static int snd_ca0106_pcm_hw_free_capture(struct snd_pcm_substream *substream)
 724 {
 725         return snd_pcm_lib_free_pages(substream);
 726 }
 727
 728 /* prepare playback callback */
 729 static int snd_ca0106_pcm_prepare_playback(struct snd_pcm_substream *substream)
 730 {
 731         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 732         struct snd_pcm_runtime *runtime = substream->runtime;
 733         struct snd_ca0106_pcm *epcm = runtime->private_data;
 734         int channel = epcm->channel_id;
 735         u32 *table_base = (u32 *)(emu->buffer.area+(8*16*channel));
 736         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
 737         u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
 738         u32 hcfg_set = 0x00000000;
 739         u32 hcfg;
 740         u32 reg40_mask = 0x30000 << (channel<<1);
 741         u32 reg40_set = 0;
 742         u32 reg40;
 743         /* FIXME: Depending on mixer selection of SPDIF out or not, select the spdif rate or the DAC rate. */
 744         u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
 745         u32 reg71_set = 0;
 746         u32 reg71;
 747         int i;
 748
 749 #if 0 /* debug */
 750         snd_printk(KERN_DEBUG
 751                    "prepare:channel_number=%d, rate=%d, format=0x%x, "
 752                    "channels=%d, buffer_size=%ld, period_size=%ld, "
 753                    "periods=%u, frames_to_bytes=%d\n",
 754                    channel, runtime->rate, runtime->format,
 755                    runtime->channels, runtime->buffer_size,
 756                    runtime->period_size, runtime->periods,
 757                    frames_to_bytes(runtime, 1));
 758         snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, table_base=%p\n",
 759                    runtime->dma_addr, runtime->dma_area, table_base);
 760         snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
 761                    emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 762 #endif /* debug */
 763         /* Rate can be set per channel. */
 764         /* reg40 control host to fifo */
 765         /* reg71 controls DAC rate. */
 766         switch (runtime->rate) {
 767         case 44100:
 768                 reg40_set = 0x10000 << (channel<<1);
 769                 reg71_set = 0x01010000;
 770                 break;
 771         case 48000:
 772                 reg40_set = 0;
 773                 reg71_set = 0;
 774                 break;
 775         case 96000:
 776                 reg40_set = 0x20000 << (channel<<1);
 777                 reg71_set = 0x02020000;
 778                 break;
 779         case 192000:
 780                 reg40_set = 0x30000 << (channel<<1);
 781                 reg71_set = 0x03030000;
 782                 break;
 783         default:
 784                 reg40_set = 0;
 785                 reg71_set = 0;
 786                 break;
 787         }
 788         /* Format is a global setting */
 789         /* FIXME: Only let the first channel accessed set this. */
 790         switch (runtime->format) {
 791         case SNDRV_PCM_FORMAT_S16_LE:
 792                 hcfg_set = 0;
 793                 break;
 794         case SNDRV_PCM_FORMAT_S32_LE:
 795                 hcfg_set = HCFG_PLAYBACK_S32_LE;
 796                 break;
 797         default:
 798                 hcfg_set = 0;
 799                 break;
 800         }
 801         hcfg = inl(emu->port + HCFG) ;
 802         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 803         outl(hcfg, emu->port + HCFG);
 804         reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
 805         reg40 = (reg40 & ~reg40_mask) | reg40_set;
 806         snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
 807         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 808         reg71 = (reg71 & ~reg71_mask) | reg71_set;
 809         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 810
 811         /* FIXME: Check emu->buffer.size before actually writing to it. */
 812         for(i=0; i < runtime->periods; i++) {
 813                 table_base[i*2] = runtime->dma_addr + (i * period_size_bytes);
 814                 table_base[i*2+1] = period_size_bytes << 16;
 815         }
 816
 817         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
 818         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
 819         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
 820         snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
 821         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
 822         /* FIXME  test what 0 bytes does. */
 823         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
 824         snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
 825         snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
 826         snd_ca0106_ptr_write(emu, 0x08, channel, 0);
 827         snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
 828 #if 0
 829         snd_ca0106_ptr_write(emu, SPCS0, 0,
 830                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
 831                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
 832                                SPCS_GENERATIONSTATUS | 0x00001200 |
 833                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
 834 #endif
 835
 836         return 0;
 837 }
 838
 839 /* prepare capture callback */
 840 static int snd_ca0106_pcm_prepare_capture(struct snd_pcm_substream *substream)
 841 {
 842         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 843         struct snd_pcm_runtime *runtime = substream->runtime;
 844         struct snd_ca0106_pcm *epcm = runtime->private_data;
 845         int channel = epcm->channel_id;
 846         u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
 847         u32 hcfg_set = 0x00000000;
 848         u32 hcfg;
 849         u32 over_sampling=0x2;
 850         u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
 851         u32 reg71_set = 0;
 852         u32 reg71;
 853
 854 #if 0 /* debug */
 855         snd_printk(KERN_DEBUG
 856                    "prepare:channel_number=%d, rate=%d, format=0x%x, "
 857                    "channels=%d, buffer_size=%ld, period_size=%ld, "
 858                    "periods=%u, frames_to_bytes=%d\n",
 859                    channel, runtime->rate, runtime->format,
 860                    runtime->channels, runtime->buffer_size,
 861                    runtime->period_size, runtime->periods,
 862                    frames_to_bytes(runtime, 1));
 863         snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, table_base=%p\n",
 864                    runtime->dma_addr, runtime->dma_area, table_base);
 865         snd_printk(KERN_DEBUG "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
 866                    emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 867 #endif /* debug */
 868         /* reg71 controls ADC rate. */
 869         switch (runtime->rate) {
 870         case 44100:
 871                 reg71_set = 0x00004000;
 872                 break;
 873         case 48000:
 874                 reg71_set = 0;
 875                 break;
 876         case 96000:
 877                 reg71_set = 0x00008000;
 878                 over_sampling=0xa;
 879                 break;
 880         case 192000:
 881                 reg71_set = 0x0000c000;
 882                 over_sampling=0xa;
 883                 break;
 884         default:
 885                 reg71_set = 0;
 886                 break;
 887         }
 888         /* Format is a global setting */
 889         /* FIXME: Only let the first channel accessed set this. */
 890         switch (runtime->format) {
 891         case SNDRV_PCM_FORMAT_S16_LE:
 892                 hcfg_set = 0;
 893                 break;
 894         case SNDRV_PCM_FORMAT_S32_LE:
 895                 hcfg_set = HCFG_CAPTURE_S32_LE;
 896                 break;
 897         default:
 898                 hcfg_set = 0;
 899                 break;
 900         }
 901         hcfg = inl(emu->port + HCFG) ;
 902         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 903         outl(hcfg, emu->port + HCFG);
 904         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 905         reg71 = (reg71 & ~reg71_mask) | reg71_set;
 906         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 907         if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
 908                 snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
 909         }
 910
 911
 912         /*
 913         printk(KERN_DEBUG
 914                "prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, "
 915                "buffer_size=%ld, period_size=%ld, frames_to_bytes=%d\n",
 916                channel, runtime->rate, runtime->format, runtime->channels,
 917                runtime->buffer_size, runtime->period_size,
 918                frames_to_bytes(runtime, 1));
 919         */
 920         snd_ca0106_ptr_write(emu, 0x13, channel, 0);
 921         snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
 922         snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
 923         snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
 924
 925         return 0;
 926 }
 927
 928 /* trigger_playback callback */
 929 static int snd_ca0106_pcm_trigger_playback(struct snd_pcm_substream *substream,
 930                                     int cmd)
 931 {
 932         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 933         struct snd_pcm_runtime *runtime;
 934         struct snd_ca0106_pcm *epcm;
 935         int channel;
 936         int result = 0;
 937         struct snd_pcm_substream *s;
 938         u32 basic = 0;
 939         u32 extended = 0;
 940         u32 bits;
 941         int running = 0;
 942
 943         switch (cmd) {
 944         case SNDRV_PCM_TRIGGER_START:
 945         case SNDRV_PCM_TRIGGER_RESUME:
 946                 running = 1;
 947                 break;
 948         case SNDRV_PCM_TRIGGER_STOP:
 949         case SNDRV_PCM_TRIGGER_SUSPEND:
 950         default:
 951                 running = 0;
 952                 break;
 953         }
 954         snd_pcm_group_for_each_entry(s, substream) {
 955                 if (snd_pcm_substream_chip(s) != emu ||
 956                     s->stream != SNDRV_PCM_STREAM_PLAYBACK)
 957                         continue;
 958                 runtime = s->runtime;
 959                 epcm = runtime->private_data;
 960                 channel = epcm->channel_id;
 961                 /* snd_printk(KERN_DEBUG "channel=%d\n", channel); */
 962                 epcm->running = running;
 963                 basic |= (0x1 << channel);
 964                 extended |= (0x10 << channel);
 965                 snd_pcm_trigger_done(s, substream);
 966         }
 967         /* snd_printk(KERN_DEBUG "basic=0x%x, extended=0x%x\n",basic, extended); */
 968
 969         switch (cmd) {
 970         case SNDRV_PCM_TRIGGER_START:
 971         case SNDRV_PCM_TRIGGER_RESUME:
 972                 bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
 973                 bits |= extended;
 974                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
 975                 bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
 976                 bits |= basic;
 977                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
 978                 break;
 979         case SNDRV_PCM_TRIGGER_STOP:
 980         case SNDRV_PCM_TRIGGER_SUSPEND:
 981                 bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
 982                 bits &= ~basic;
 983                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
 984                 bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
 985                 bits &= ~extended;
 986                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
 987                 break;
 988         default:
 989                 result = -EINVAL;
 990                 break;
 991         }
 992         return result;
 993 }
 994
 995 /* trigger_capture callback */
 996 static int snd_ca0106_pcm_trigger_capture(struct snd_pcm_substream *substream,
 997                                     int cmd)
 998 {
 999         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1000         struct snd_pcm_runtime *runtime = substream->runtime;
1001         struct snd_ca0106_pcm *epcm = runtime->private_data;
1002         int channel = epcm->channel_id;
1003         int result = 0;
1004
1005         switch (cmd) {
1006         case SNDRV_PCM_TRIGGER_START:
1007                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
1008                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
1009                 epcm->running = 1;
1010                 break;
1011         case SNDRV_PCM_TRIGGER_STOP:
1012                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
1013                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
1014                 epcm->running = 0;
1015                 break;
1016         default:
1017                 result = -EINVAL;
1018                 break;
1019         }
1020         return result;
1021 }
1022
1023 /* pointer_playback callback */
1024 static snd_pcm_uframes_t
1025 snd_ca0106_pcm_pointer_playback(struct snd_pcm_substream *substream)
1026 {
1027         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1028         struct snd_pcm_runtime *runtime = substream->runtime;
1029         struct snd_ca0106_pcm *epcm = runtime->private_data;
1030         unsigned int ptr, prev_ptr;
1031         int channel = epcm->channel_id;
1032         int timeout = 10;
1033
1034         if (!epcm->running)
1035                 return 0;
1036
1037         prev_ptr = -1;
1038         do {
1039                 ptr = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
1040                 ptr = (ptr >> 3) * runtime->period_size;
1041                 ptr += bytes_to_frames(runtime,
1042                         snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel));
1043                 if (ptr >= runtime->buffer_size)
1044                         ptr -= runtime->buffer_size;
1045                 if (prev_ptr == ptr)
1046                         return ptr;
1047                 prev_ptr = ptr;
1048         } while (--timeout);
1049         snd_printk(KERN_WARNING "ca0106: unstable DMA pointer!\n");
1050         return 0;
1051 }
1052
1053 /* pointer_capture callback */
1054 static snd_pcm_uframes_t
1055 snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream *substream)
1056 {
1057         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1058         struct snd_pcm_runtime *runtime = substream->runtime;
1059         struct snd_ca0106_pcm *epcm = runtime->private_data;
1060         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
1061         int channel = channel=epcm->channel_id;
1062
1063         if (!epcm->running)
1064                 return 0;
1065
1066         ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
1067         ptr2 = bytes_to_frames(runtime, ptr1);
1068         ptr=ptr2;
1069         if (ptr >= runtime->buffer_size)
1070                 ptr -= runtime->buffer_size;
1071         /*
1072         printk(KERN_DEBUG "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
1073                "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
1074                ptr1, ptr2, ptr, (int)runtime->buffer_size,
1075                (int)runtime->period_size, (int)runtime->frame_bits,
1076                (int)runtime->rate);
1077         */
1078         return ptr;
1079 }
1080
1081 /* operators */
1082 static struct snd_pcm_ops snd_ca0106_playback_front_ops = {
1083         .open =        snd_ca0106_pcm_open_playback_front,
1084         .close =       snd_ca0106_pcm_close_playback,
1085         .ioctl =       snd_pcm_lib_ioctl,
1086         .hw_params =   snd_ca0106_pcm_hw_params_playback,
1087         .hw_free =     snd_ca0106_pcm_hw_free_playback,
1088         .prepare =     snd_ca0106_pcm_prepare_playback,
1089         .trigger =     snd_ca0106_pcm_trigger_playback,
1090         .pointer =     snd_ca0106_pcm_pointer_playback,
1091 };
1092
1093 static struct snd_pcm_ops snd_ca0106_capture_0_ops = {
1094         .open =        snd_ca0106_pcm_open_0_capture,
1095         .close =       snd_ca0106_pcm_close_capture,
1096         .ioctl =       snd_pcm_lib_ioctl,
1097         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1098         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1099         .prepare =     snd_ca0106_pcm_prepare_capture,
1100         .trigger =     snd_ca0106_pcm_trigger_capture,
1101         .pointer =     snd_ca0106_pcm_pointer_capture,
1102 };
1103
1104 static struct snd_pcm_ops snd_ca0106_capture_1_ops = {
1105         .open =        snd_ca0106_pcm_open_1_capture,
1106         .close =       snd_ca0106_pcm_close_capture,
1107         .ioctl =       snd_pcm_lib_ioctl,
1108         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1109         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1110         .prepare =     snd_ca0106_pcm_prepare_capture,
1111         .trigger =     snd_ca0106_pcm_trigger_capture,
1112         .pointer =     snd_ca0106_pcm_pointer_capture,
1113 };
1114
1115 static struct snd_pcm_ops snd_ca0106_capture_2_ops = {
1116         .open =        snd_ca0106_pcm_open_2_capture,
1117         .close =       snd_ca0106_pcm_close_capture,
1118         .ioctl =       snd_pcm_lib_ioctl,
1119         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1120         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1121         .prepare =     snd_ca0106_pcm_prepare_capture,
1122         .trigger =     snd_ca0106_pcm_trigger_capture,
1123         .pointer =     snd_ca0106_pcm_pointer_capture,
1124 };
1125
1126 static struct snd_pcm_ops snd_ca0106_capture_3_ops = {
1127         .open =        snd_ca0106_pcm_open_3_capture,
1128         .close =       snd_ca0106_pcm_close_capture,
1129         .ioctl =       snd_pcm_lib_ioctl,
1130         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1131         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1132         .prepare =     snd_ca0106_pcm_prepare_capture,
1133         .trigger =     snd_ca0106_pcm_trigger_capture,
1134         .pointer =     snd_ca0106_pcm_pointer_capture,
1135 };
1136
1137 static struct snd_pcm_ops snd_ca0106_playback_center_lfe_ops = {
1138         .open =         snd_ca0106_pcm_open_playback_center_lfe,
1139         .close =        snd_ca0106_pcm_close_playback,
1140         .ioctl =        snd_pcm_lib_ioctl,
1141         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1142         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1143         .prepare =      snd_ca0106_pcm_prepare_playback,
1144         .trigger =      snd_ca0106_pcm_trigger_playback,
1145         .pointer =      snd_ca0106_pcm_pointer_playback,
1146 };
1147
1148 static struct snd_pcm_ops snd_ca0106_playback_unknown_ops = {
1149         .open =         snd_ca0106_pcm_open_playback_unknown,
1150         .close =        snd_ca0106_pcm_close_playback,
1151         .ioctl =        snd_pcm_lib_ioctl,
1152         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1153         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1154         .prepare =      snd_ca0106_pcm_prepare_playback,
1155         .trigger =      snd_ca0106_pcm_trigger_playback,
1156         .pointer =      snd_ca0106_pcm_pointer_playback,
1157 };
1158
1159 static struct snd_pcm_ops snd_ca0106_playback_rear_ops = {
1160         .open =         snd_ca0106_pcm_open_playback_rear,
1161         .close =        snd_ca0106_pcm_close_playback,
1162         .ioctl =        snd_pcm_lib_ioctl,
1163         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1164                 .hw_free =      snd_ca0106_pcm_hw_free_playback,
1165         .prepare =      snd_ca0106_pcm_prepare_playback,
1166         .trigger =      snd_ca0106_pcm_trigger_playback,
1167         .pointer =      snd_ca0106_pcm_pointer_playback,
1168 };
1169
1170
1171 static unsigned short snd_ca0106_ac97_read(struct snd_ac97 *ac97,
1172                                              unsigned short reg)
1173 {
1174         struct snd_ca0106 *emu = ac97->private_data;
1175         unsigned long flags;
1176         unsigned short val;
1177
1178         spin_lock_irqsave(&emu->emu_lock, flags);
1179         outb(reg, emu->port + AC97ADDRESS);
1180         val = inw(emu->port + AC97DATA);
1181         spin_unlock_irqrestore(&emu->emu_lock, flags);
1182         return val;
1183 }
1184
1185 static void snd_ca0106_ac97_write(struct snd_ac97 *ac97,
1186                                     unsigned short reg, unsigned short val)
1187 {
1188         struct snd_ca0106 *emu = ac97->private_data;
1189         unsigned long flags;
1190
1191         spin_lock_irqsave(&emu->emu_lock, flags);
1192         outb(reg, emu->port + AC97ADDRESS);
1193         outw(val, emu->port + AC97DATA);
1194         spin_unlock_irqrestore(&emu->emu_lock, flags);
1195 }
1196
1197 static int snd_ca0106_ac97(struct snd_ca0106 *chip)
1198 {
1199         struct snd_ac97_bus *pbus;
1200         struct snd_ac97_template ac97;
1201         int err;
1202         static struct snd_ac97_bus_ops ops = {
1203                 .write = snd_ca0106_ac97_write,
1204                 .read = snd_ca0106_ac97_read,
1205         };
1206
1207         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
1208                 return err;
1209         pbus->no_vra = 1; /* we don't need VRA */
1210
1211         memset(&ac97, 0, sizeof(ac97));
1212         ac97.private_data = chip;
1213         ac97.scaps = AC97_SCAP_NO_SPDIF;
1214         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1215 }
1216
1217 static void ca0106_stop_chip(struct snd_ca0106 *chip);
1218
1219 static int snd_ca0106_free(struct snd_ca0106 *chip)
1220 {
1221         if (chip->res_port != NULL) {
1222                 /* avoid access to already used hardware */
1223                 ca0106_stop_chip(chip);
1224         }
1225         if (chip->irq >= 0)
1226                 free_irq(chip->irq, chip);
1227         // release the data
1228 #if 1
1229         if (chip->buffer.area)
1230                 snd_dma_free_pages(&chip->buffer);
1231 #endif
1232
1233         // release the i/o port
1234         release_and_free_resource(chip->res_port);
1235
1236         pci_disable_device(chip->pci);
1237         kfree(chip);
1238         return 0;
1239 }
1240
1241 static int snd_ca0106_dev_free(struct snd_device *device)
1242 {
1243         struct snd_ca0106 *chip = device->device_data;
1244         return snd_ca0106_free(chip);
1245 }
1246
1247 static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
1248 {
1249         unsigned int status;
1250
1251         struct snd_ca0106 *chip = dev_id;
1252         int i;
1253         int mask;
1254         unsigned int stat76;
1255         struct snd_ca0106_channel *pchannel;
1256
1257         status = inl(chip->port + IPR);
1258         if (! status)
1259                 return IRQ_NONE;
1260
1261         stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1262         /*
1263         snd_printk(KERN_DEBUG "interrupt status = 0x%08x, stat76=0x%08x\n",
1264                    status, stat76);
1265         snd_printk(KERN_DEBUG "ptr=0x%08x\n",
1266                    snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1267         */
1268         mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1269         for(i = 0; i < 4; i++) {
1270                 pchannel = &(chip->playback_channels[i]);
1271                 if (stat76 & mask) {
1272 /* FIXME: Select the correct substream for period elapsed */
1273                         if(pchannel->use) {
1274                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1275                                 //printk(KERN_INFO "interrupt [%d] used\n", i);
1276                         }
1277                 }
1278                 //printk(KERN_INFO "channel=%p\n",pchannel);
1279                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1280                 mask <<= 1;
1281         }
1282         mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1283         for(i = 0; i < 4; i++) {
1284                 pchannel = &(chip->capture_channels[i]);
1285                 if (stat76 & mask) {
1286 /* FIXME: Select the correct substream for period elapsed */
1287                         if(pchannel->use) {
1288                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1289                                 //printk(KERN_INFO "interrupt [%d] used\n", i);
1290                         }
1291                 }
1292                 //printk(KERN_INFO "channel=%p\n",pchannel);
1293                 //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1294                 mask <<= 1;
1295         }
1296
1297         snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1298
1299         if (chip->midi.dev_id &&
1300             (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1301                 if (chip->midi.interrupt)
1302                         chip->midi.interrupt(&chip->midi, status);
1303                 else
1304                         chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1305         }
1306
1307         // acknowledge the interrupt if necessary
1308         outl(status, chip->port+IPR);
1309
1310         return IRQ_HANDLED;
1311 }
1312
1313 static int __devinit snd_ca0106_pcm(struct snd_ca0106 *emu, int device)
1314 {
1315         struct snd_pcm *pcm;
1316         struct snd_pcm_substream *substream;
1317         int err;
1318
1319         err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm);
1320         if (err < 0)
1321                 return err;
1322
1323         pcm->private_data = emu;
1324
1325         switch (device) {
1326         case 0:
1327           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1328           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1329           break;
1330         case 1:
1331           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1332           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1333           break;
1334         case 2:
1335           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1336           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1337           break;
1338         case 3:
1339           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1340           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1341           break;
1342         }
1343
1344         pcm->info_flags = 0;
1345         strcpy(pcm->name, "CA0106");
1346
1347         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
1348             substream;
1349             substream = substream->next) {
1350                 if ((err = snd_pcm_lib_preallocate_pages(substream,
1351                                                          SNDRV_DMA_TYPE_DEV,
1352                                                          snd_dma_pci_data(emu->pci),
1353                                                          64*1024, 64*1024)) < 0) /* FIXME: 32*1024 for sound buffer, between 32and64 for Periods table. */
1354                         return err;
1355         }
1356
1357         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
1358               substream;
1359               substream = substream->next) {
1360                 if ((err = snd_pcm_lib_preallocate_pages(substream,
1361                                                    SNDRV_DMA_TYPE_DEV,
1362                                                    snd_dma_pci_data(emu->pci),
1363                                                    64*1024, 64*1024)) < 0)
1364                         return err;
1365         }
1366
1367         emu->pcm[device] = pcm;
1368
1369         return 0;
1370 }
1371
1372 #define SPI_REG(reg, value)     (((reg) << SPI_REG_SHIFT) | (value))
1373 static unsigned int spi_dac_init[] = {
1374         SPI_REG(SPI_LDA1_REG,   SPI_DA_BIT_0dB), /* 0dB dig. attenuation */
1375         SPI_REG(SPI_RDA1_REG,   SPI_DA_BIT_0dB),
1376         SPI_REG(SPI_PL_REG,     SPI_PL_BIT_L_L | SPI_PL_BIT_R_R | SPI_IZD_BIT),
1377         SPI_REG(SPI_FMT_REG,    SPI_FMT_BIT_I2S | SPI_IWL_BIT_24),
1378         SPI_REG(SPI_LDA2_REG,   SPI_DA_BIT_0dB),
1379         SPI_REG(SPI_RDA2_REG,   SPI_DA_BIT_0dB),
1380         SPI_REG(SPI_LDA3_REG,   SPI_DA_BIT_0dB),
1381         SPI_REG(SPI_RDA3_REG,   SPI_DA_BIT_0dB),
1382         SPI_REG(SPI_MASTDA_REG, SPI_DA_BIT_0dB),
1383         SPI_REG(9,              0x00),
1384         SPI_REG(SPI_MS_REG,     SPI_DACD0_BIT | SPI_DACD1_BIT | SPI_DACD2_BIT),
1385         SPI_REG(12,             0x00),
1386         SPI_REG(SPI_LDA4_REG,   SPI_DA_BIT_0dB),
1387         SPI_REG(SPI_RDA4_REG,   SPI_DA_BIT_0dB | SPI_DA_BIT_UPDATE),
1388         SPI_REG(SPI_DACD4_REG,  SPI_DACD4_BIT),
1389 };
1390
1391 static unsigned int i2c_adc_init[][2] = {
1392         { 0x17, 0x00 }, /* Reset */
1393         { 0x07, 0x00 }, /* Timeout */
1394         { 0x0b, 0x22 },  /* Interface control */
1395         { 0x0c, 0x22 },  /* Master mode control */
1396         { 0x0d, 0x08 },  /* Powerdown control */
1397         { 0x0e, 0xcf },  /* Attenuation Left  0x01 = -103dB, 0xff = 24dB */
1398         { 0x0f, 0xcf },  /* Attenuation Right 0.5dB steps */
1399         { 0x10, 0x7b },  /* ALC Control 1 */
1400         { 0x11, 0x00 },  /* ALC Control 2 */
1401         { 0x12, 0x32 },  /* ALC Control 3 */
1402         { 0x13, 0x00 },  /* Noise gate control */
1403         { 0x14, 0xa6 },  /* Limiter control */
1404         { 0x15, ADC_MUX_LINEIN },  /* ADC Mixer control */
1405 };
1406
1407 static void ca0106_init_chip(struct snd_ca0106 *chip, int resume)
1408 {
1409         int ch;
1410         unsigned int def_bits;
1411
1412         outl(0, chip->port + INTE);
1413
1414         /*
1415          *  Init to 0x02109204 :
1416          *  Clock accuracy    = 0     (1000ppm)
1417          *  Sample Rate       = 2     (48kHz)
1418          *  Audio Channel     = 1     (Left of 2)
1419          *  Source Number     = 0     (Unspecified)
1420          *  Generation Status = 1     (Original for Cat Code 12)
1421          *  Cat Code          = 12    (Digital Signal Mixer)
1422          *  Mode              = 0     (Mode 0)
1423          *  Emphasis          = 0     (None)
1424          *  CP                = 1     (Copyright unasserted)
1425          *  AN                = 0     (Audio data)
1426          *  P                 = 0     (Consumer)
1427          */
1428         def_bits =
1429                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1430                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1431                 SPCS_GENERATIONSTATUS | 0x00001200 |
1432                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT;
1433         if (!resume) {
1434                 chip->spdif_str_bits[0] = chip->spdif_bits[0] = def_bits;
1435                 chip->spdif_str_bits[1] = chip->spdif_bits[1] = def_bits;
1436                 chip->spdif_str_bits[2] = chip->spdif_bits[2] = def_bits;
1437                 chip->spdif_str_bits[3] = chip->spdif_bits[3] = def_bits;
1438         }
1439         /* Only SPCS1 has been tested */
1440         snd_ca0106_ptr_write(chip, SPCS1, 0, chip->spdif_str_bits[1]);
1441         snd_ca0106_ptr_write(chip, SPCS0, 0, chip->spdif_str_bits[0]);
1442         snd_ca0106_ptr_write(chip, SPCS2, 0, chip->spdif_str_bits[2]);
1443         snd_ca0106_ptr_write(chip, SPCS3, 0, chip->spdif_str_bits[3]);
1444
1445         snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1446         snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1447
1448         /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1449         outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
1450         outw(0x8000, chip->port + AC97DATA);
1451 #if 0 /* FIXME: what are these? */
1452         snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1453         snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1454         snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1455         snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1456 #endif
1457
1458         /* OSS drivers set this. */
1459         /* snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); */
1460
1461         /* Analog or Digital output */
1462         snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1463         /* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers.
1464          * Use 0x000f0000 for surround71
1465          */
1466         snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000);
1467
1468         chip->spdif_enable = 0; /* Set digital SPDIF output off */
1469         /*snd_ca0106_ptr_write(chip, 0x45, 0, 0);*/ /* Analogue out */
1470         /*snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00);*/ /* Digital out */
1471
1472         /* goes to 0x40c80000 when doing SPDIF IN/OUT */
1473         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000);
1474         /* (Mute) CAPTURE feedback into PLAYBACK volume.
1475          * Only lower 16 bits matter.
1476          */
1477         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff);
1478         /* SPDIF IN Volume */
1479         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000);
1480         /* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1481         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000);
1482
1483         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1484         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1485         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1486         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1487
1488         for (ch = 0; ch < 4; ch++) {
1489                 /* Only high 16 bits matter */
1490                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030);
1491                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1492 #if 0 /* Mute */
1493                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040);
1494                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040);
1495                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff);
1496                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff);
1497 #endif
1498         }
1499         if (chip->details->i2c_adc == 1) {
1500                 /* Select MIC, Line in, TAD in, AUX in */
1501                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1502                 /* Default to CAPTURE_SOURCE to i2s in */
1503                 if (!resume)
1504                         chip->capture_source = 3;
1505         } else if (chip->details->ac97 == 1) {
1506                 /* Default to AC97 in */
1507                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x444400e4);
1508                 /* Default to CAPTURE_SOURCE to AC97 in */
1509                 if (!resume)
1510                         chip->capture_source = 4;
1511         } else {
1512                 /* Select MIC, Line in, TAD in, AUX in */
1513                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1514                 /* Default to Set CAPTURE_SOURCE to i2s in */
1515                 if (!resume)
1516                         chip->capture_source = 3;
1517         }
1518
1519         if (chip->details->gpio_type == 2) {
1520                 /* The SB0438 use GPIO differently. */
1521                 /* FIXME: Still need to find out what the other GPIO bits do.
1522                  * E.g. For digital spdif out.
1523                  */
1524                 outl(0x0, chip->port+GPIO);
1525                 /* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1526                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1527         } else if (chip->details->gpio_type == 1) {
1528                 /* The SB0410 and SB0413 use GPIO differently. */
1529                 /* FIXME: Still need to find out what the other GPIO bits do.
1530                  * E.g. For digital spdif out.
1531                  */
1532                 outl(0x0, chip->port+GPIO);
1533                 /* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1534                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1535         } else {
1536                 outl(0x0, chip->port+GPIO);
1537                 outl(0x005f03a3, chip->port+GPIO); /* Analog */
1538                 /* outl(0x005f02a2, chip->port+GPIO); */ /* SPDIF */
1539         }
1540         snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1541
1542         /* outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG); */
1543         /* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1544         /* outl(0x00001409, chip->port+HCFG); */
1545         /* outl(0x00000009, chip->port+HCFG); */
1546         /* AC97 2.0, Enable outputs. */
1547         outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG);
1548
1549         if (chip->details->i2c_adc == 1) {
1550                 /* The SB0410 and SB0413 use I2C to control ADC. */
1551                 int size, n;
1552
1553                 size = ARRAY_SIZE(i2c_adc_init);
1554                 /* snd_printk(KERN_DEBUG "I2C:array size=0x%x\n", size); */
1555                 for (n = 0; n < size; n++)
1556                         snd_ca0106_i2c_write(chip, i2c_adc_init[n][0],
1557                                              i2c_adc_init[n][1]);
1558                 for (n = 0; n < 4; n++) {
1559                         chip->i2c_capture_volume[n][0] = 0xcf;
1560                         chip->i2c_capture_volume[n][1] = 0xcf;
1561                 }
1562                 chip->i2c_capture_source = 2; /* Line in */
1563                 /* Enable Line-in capture. MIC in currently untested. */
1564                 /* snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); */
1565         }
1566
1567         if (chip->details->spi_dac == 1) {
1568                 /* The SB0570 use SPI to control DAC. */
1569                 int size, n;
1570
1571                 size = ARRAY_SIZE(spi_dac_init);
1572                 for (n = 0; n < size; n++) {
1573                         int reg = spi_dac_init[n] >> SPI_REG_SHIFT;
1574
1575                         snd_ca0106_spi_write(chip, spi_dac_init[n]);
1576                         if (reg < ARRAY_SIZE(chip->spi_dac_reg))
1577                                 chip->spi_dac_reg[reg] = spi_dac_init[n];
1578                 }
1579
1580                 /* Enable front dac only */
1581                 snd_ca0106_pcm_power_dac(chip, PCM_FRONT_CHANNEL, 1);
1582         }
1583 }
1584
1585 static void ca0106_stop_chip(struct snd_ca0106 *chip)
1586 {
1587         /* disable interrupts */
1588         snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
1589         outl(0, chip->port + INTE);
1590         snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
1591         udelay(1000);
1592         /* disable audio */
1593         /* outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG); */
1594         outl(0, chip->port + HCFG);
1595         /* FIXME: We need to stop and DMA transfers here.
1596          *        But as I am not sure how yet, we cannot from the dma pages.
1597          * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
1598          */
1599 }
1600
1601 static int __devinit snd_ca0106_create(int dev, struct snd_card *card,
1602                                          struct pci_dev *pci,
1603                                          struct snd_ca0106 **rchip)
1604 {
1605         struct snd_ca0106 *chip;
1606         struct snd_ca0106_details *c;
1607         int err;
1608         static struct snd_device_ops ops = {
1609                 .dev_free = snd_ca0106_dev_free,
1610         };
1611
1612         *rchip = NULL;
1613
1614         err = pci_enable_device(pci);
1615         if (err < 0)
1616                 return err;
1617         if (pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0 ||
1618             pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32)) < 0) {
1619                 printk(KERN_ERR "error to set 32bit mask DMA\n");
1620                 pci_disable_device(pci);
1621                 return -ENXIO;
1622         }
1623
1624         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1625         if (chip == NULL) {
1626                 pci_disable_device(pci);
1627                 return -ENOMEM;
1628         }
1629
1630         chip->card = card;
1631         chip->pci = pci;
1632         chip->irq = -1;
1633
1634         spin_lock_init(&chip->emu_lock);
1635
1636         chip->port = pci_resource_start(pci, 0);
1637         chip->res_port = request_region(chip->port, 0x20, "snd_ca0106");
1638         if (!chip->res_port) {
1639                 snd_ca0106_free(chip);
1640                 printk(KERN_ERR "cannot allocate the port\n");
1641                 return -EBUSY;
1642         }
1643
1644         if (request_irq(pci->irq, snd_ca0106_interrupt,
1645                         IRQF_SHARED, "snd_ca0106", chip)) {
1646                 snd_ca0106_free(chip);
1647                 printk(KERN_ERR "cannot grab irq\n");
1648                 return -EBUSY;
1649         }
1650         chip->irq = pci->irq;
1651
1652         /* This stores the periods table. */
1653         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1654                                 1024, &chip->buffer) < 0) {
1655                 snd_ca0106_free(chip);
1656                 return -ENOMEM;
1657         }
1658
1659         pci_set_master(pci);
1660         /* read serial */
1661         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1662         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1663         printk(KERN_INFO "snd-ca0106: Model %04x Rev %08x Serial %08x\n",
1664                chip->model, pci->revision, chip->serial);
1665         strcpy(card->driver, "CA0106");
1666         strcpy(card->shortname, "CA0106");
1667
1668         for (c = ca0106_chip_details; c->serial; c++) {
1669                 if (subsystem[dev]) {
1670                         if (c->serial == subsystem[dev])
1671                                 break;
1672                 } else if (c->serial == chip->serial)
1673                         break;
1674         }
1675         chip->details = c;
1676         if (subsystem[dev]) {
1677                 printk(KERN_INFO "snd-ca0106: Sound card name=%s, "
1678                        "subsystem=0x%x. Forced to subsystem=0x%x\n",
1679                        c->name, chip->serial, subsystem[dev]);
1680         }
1681
1682         sprintf(card->longname, "%s at 0x%lx irq %i",
1683                 c->name, chip->port, chip->irq);
1684
1685         ca0106_init_chip(chip, 0);
1686
1687         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1688         if (err < 0) {
1689                 snd_ca0106_free(chip);
1690                 return err;
1691         }
1692         *rchip = chip;
1693         return 0;
1694 }
1695
1696
1697 static void ca0106_midi_interrupt_enable(struct snd_ca_midi *midi, int intr)
1698 {
1699         snd_ca0106_intr_enable((struct snd_ca0106 *)(midi->dev_id), intr);
1700 }
1701
1702 static void ca0106_midi_interrupt_disable(struct snd_ca_midi *midi, int intr)
1703 {
1704         snd_ca0106_intr_disable((struct snd_ca0106 *)(midi->dev_id), intr);
1705 }
1706
1707 static unsigned char ca0106_midi_read(struct snd_ca_midi *midi, int idx)
1708 {
1709         return (unsigned char)snd_ca0106_ptr_read((struct snd_ca0106 *)(midi->dev_id),
1710                                                   midi->port + idx, 0);
1711 }
1712
1713 static void ca0106_midi_write(struct snd_ca_midi *midi, int data, int idx)
1714 {
1715         snd_ca0106_ptr_write((struct snd_ca0106 *)(midi->dev_id), midi->port + idx, 0, data);
1716 }
1717
1718 static struct snd_card *ca0106_dev_id_card(void *dev_id)
1719 {
1720         return ((struct snd_ca0106 *)dev_id)->card;
1721 }
1722
1723 static int ca0106_dev_id_port(void *dev_id)
1724 {
1725         return ((struct snd_ca0106 *)dev_id)->port;
1726 }
1727
1728 static int __devinit snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
1729 {
1730         struct snd_ca_midi *midi;
1731         char *name;
1732         int err;
1733
1734         if (channel == CA0106_MIDI_CHAN_B) {
1735                 name = "CA0106 MPU-401 (UART) B";
1736                 midi =  &chip->midi2;
1737                 midi->tx_enable = INTE_MIDI_TX_B;
1738                 midi->rx_enable = INTE_MIDI_RX_B;
1739                 midi->ipr_tx = IPR_MIDI_TX_B;
1740                 midi->ipr_rx = IPR_MIDI_RX_B;
1741                 midi->port = MIDI_UART_B_DATA;
1742         } else {
1743                 name = "CA0106 MPU-401 (UART)";
1744                 midi =  &chip->midi;
1745                 midi->tx_enable = INTE_MIDI_TX_A;
1746                 midi->rx_enable = INTE_MIDI_TX_B;
1747                 midi->ipr_tx = IPR_MIDI_TX_A;
1748                 midi->ipr_rx = IPR_MIDI_RX_A;
1749                 midi->port = MIDI_UART_A_DATA;
1750         }
1751
1752         midi->reset = CA0106_MPU401_RESET;
1753         midi->enter_uart = CA0106_MPU401_ENTER_UART;
1754         midi->ack = CA0106_MPU401_ACK;
1755
1756         midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1757         midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1758
1759         midi->channel = channel;
1760
1761         midi->interrupt_enable = ca0106_midi_interrupt_enable;
1762         midi->interrupt_disable = ca0106_midi_interrupt_disable;
1763
1764         midi->read = ca0106_midi_read;
1765         midi->write = ca0106_midi_write;
1766
1767         midi->get_dev_id_card = ca0106_dev_id_card;
1768         midi->get_dev_id_port = ca0106_dev_id_port;
1769
1770         midi->dev_id = chip;
1771
1772         if ((err = ca_midi_init(chip, midi, 0, name)) < 0)
1773                 return err;
1774
1775         return 0;
1776 }
1777
1778
1779 static int __devinit snd_ca0106_probe(struct pci_dev *pci,
1780                                         const struct pci_device_id *pci_id)
1781 {
1782         static int dev;
1783         struct snd_card *card;
1784         struct snd_ca0106 *chip;
1785         int i, err;
1786
1787         if (dev >= SNDRV_CARDS)
1788                 return -ENODEV;
1789         if (!enable[dev]) {
1790                 dev++;
1791                 return -ENOENT;
1792         }
1793
1794         err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
1795         if (err < 0)
1796                 return err;
1797
1798         err = snd_ca0106_create(dev, card, pci, &chip);
1799         if (err < 0)
1800                 goto error;
1801         card->private_data = chip;
1802
1803         for (i = 0; i < 4; i++) {
1804                 err = snd_ca0106_pcm(chip, i);
1805                 if (err < 0)
1806                         goto error;
1807         }
1808
1809         if (chip->details->ac97 == 1) {
1810                 /* The SB0410 and SB0413 do not have an AC97 chip. */
1811                 err = snd_ca0106_ac97(chip);
1812                 if (err < 0)
1813                         goto error;
1814         }
1815         err = snd_ca0106_mixer(chip);
1816         if (err < 0)
1817                 goto error;
1818
1819         snd_printdd("ca0106: probe for MIDI channel A ...");
1820         err = snd_ca0106_midi(chip, CA0106_MIDI_CHAN_A);
1821         if (err < 0)
1822                 goto error;
1823         snd_printdd(" done.\n");
1824
1825 #ifdef CONFIG_PROC_FS
1826         snd_ca0106_proc_init(chip);
1827 #endif
1828
1829         snd_card_set_dev(card, &pci->dev);
1830
1831         err = snd_card_register(card);
1832         if (err < 0)
1833                 goto error;
1834
1835         pci_set_drvdata(pci, card);
1836         dev++;
1837         return 0;
1838
1839  error:
1840         snd_card_free(card);
1841         return err;
1842 }
1843
1844 static void __devexit snd_ca0106_remove(struct pci_dev *pci)
1845 {
1846         snd_card_free(pci_get_drvdata(pci));
1847         pci_set_drvdata(pci, NULL);
1848 }
1849
1850 #ifdef CONFIG_PM
1851 static int snd_ca0106_suspend(struct pci_dev *pci, pm_message_t state)
1852 {
1853         struct snd_card *card = pci_get_drvdata(pci);
1854         struct snd_ca0106 *chip = card->private_data;
1855         int i;
1856
1857         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1858         for (i = 0; i < 4; i++)
1859                 snd_pcm_suspend_all(chip->pcm[i]);
1860         if (chip->details->ac97)
1861                 snd_ac97_suspend(chip->ac97);
1862         snd_ca0106_mixer_suspend(chip);
1863
1864         ca0106_stop_chip(chip);
1865
1866         pci_disable_device(pci);
1867         pci_save_state(pci);
1868         pci_set_power_state(pci, pci_choose_state(pci, state));
1869         return 0;
1870 }
1871
1872 static int snd_ca0106_resume(struct pci_dev *pci)
1873 {
1874         struct snd_card *card = pci_get_drvdata(pci);
1875         struct snd_ca0106 *chip = card->private_data;
1876         int i;
1877
1878         pci_set_power_state(pci, PCI_D0);
1879         pci_restore_state(pci);
1880
1881         if (pci_enable_device(pci) < 0) {
1882                 snd_card_disconnect(card);
1883                 return -EIO;
1884         }
1885
1886         pci_set_master(pci);
1887
1888         ca0106_init_chip(chip, 1);
1889
1890         if (chip->details->ac97)
1891                 snd_ac97_resume(chip->ac97);
1892         snd_ca0106_mixer_resume(chip);
1893         if (chip->details->spi_dac) {
1894                 for (i = 0; i < ARRAY_SIZE(chip->spi_dac_reg); i++)
1895                         snd_ca0106_spi_write(chip, chip->spi_dac_reg[i]);
1896         }
1897
1898         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1899         return 0;
1900 }
1901 #endif
1902
1903 // PCI IDs
1904 static DEFINE_PCI_DEVICE_TABLE(snd_ca0106_ids) = {
1905         { PCI_VDEVICE(CREATIVE, 0x0007), 0 },   /* Audigy LS or Live 24bit */
1906         { 0, }
1907 };
1908 MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1909
1910 // pci_driver definition
1911 static struct pci_driver driver = {
1912         .name = "CA0106",
1913         .id_table = snd_ca0106_ids,
1914         .probe = snd_ca0106_probe,
1915         .remove = __devexit_p(snd_ca0106_remove),
1916 #ifdef CONFIG_PM
1917         .suspend = snd_ca0106_suspend,
1918         .resume = snd_ca0106_resume,
1919 #endif
1920 };
1921
1922 // initialization of the module
1923 static int __init alsa_card_ca0106_init(void)
1924 {
1925         return pci_register_driver(&driver);
1926 }
1927
1928 // clean up the module
1929 static void __exit alsa_card_ca0106_exit(void)
1930 {
1931         pci_unregister_driver(&driver);
1932 }
1933
1934 module_init(alsa_card_ca0106_init)
1935 module_exit(alsa_card_ca0106_exit)