sound/pci/ca0106/ca0106

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This source file includes following definitions.
snd_ca0106_ptr_read
snd_ca0106_ptr_write
snd_ca0106_spi_write
snd_ca0106_i2c_write
snd_ca0106_intr_enable
snd_ca0106_intr_disable
snd_ca0106_pcm_free_substream
restore_spdif_bits
snd_ca0106_channel_dac
snd_ca0106_pcm_power_dac
snd_ca0106_pcm_open_playback_channel
snd_ca0106_pcm_close_playback
snd_ca0106_pcm_open_playback_front
snd_ca0106_pcm_open_playback_center_lfe
snd_ca0106_pcm_open_playback_unknown
snd_ca0106_pcm_open_playback_rear
snd_ca0106_pcm_open_capture_channel
snd_ca0106_pcm_close_capture
snd_ca0106_pcm_open_0_capture
snd_ca0106_pcm_open_1_capture
snd_ca0106_pcm_open_2_capture
snd_ca0106_pcm_open_3_capture
snd_ca0106_pcm_hw_params_playback
snd_ca0106_pcm_hw_free_playback
snd_ca0106_pcm_hw_params_capture
snd_ca0106_pcm_hw_free_capture
snd_ca0106_pcm_prepare_playback
snd_ca0106_pcm_prepare_capture
snd_ca0106_pcm_trigger_playback
snd_ca0106_pcm_trigger_capture
snd_ca0106_pcm_pointer_playback
snd_ca0106_pcm_pointer_capture
snd_ca0106_ac97_read
snd_ca0106_ac97_write
snd_ca0106_ac97
snd_ca0106_free
snd_ca0106_dev_free
snd_ca0106_interrupt
snd_ca0106_pcm
ca0106_init_chip
ca0106_stop_chip
snd_ca0106_create
ca0106_midi_interrupt_enable
ca0106_midi_interrupt_disable
ca0106_midi_read
ca0106_midi_write
ca0106_dev_id_card
ca0106_dev_id_port
snd_ca0106_midi
snd_ca0106_probe
snd_ca0106_remove
snd_ca0106_suspend
snd_ca0106_resume
   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  Copyright (c) 2004 James Courtier-Dutton <James@superbug.demon.co.uk>
   4  *  Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit
   5  *  Version: 0.0.25
   6  *
   7  *  FEATURES currently supported:
   8  *    Front, Rear and Center/LFE.
   9  *    Surround40 and Surround51.
  10  *    Capture from MIC an LINE IN input.
  11  *    SPDIF digital playback of PCM stereo and AC3/DTS works.
  12  *    (One can use a standard mono mini-jack to one RCA plugs cable.
  13  *     or one can use a standard stereo mini-jack to two RCA plugs cable.
  14  *     Plug one of the RCA plugs into the Coax input of the external decoder/receiver.)
  15  *    ( In theory one could output 3 different AC3 streams at once, to 3 different SPDIF outputs. )
  16  *    Notes on how to capture sound:
  17  *      The AC97 is used in the PLAYBACK direction.
  18  *      The output from the AC97 chip, instead of reaching the speakers, is fed into the Philips 1361T ADC.
  19  *      So, to record from the MIC, set the MIC Playback volume to max,
  20  *      unmute the MIC and turn up the MASTER Playback volume.
  21  *      So, to prevent feedback when capturing, minimise the "Capture feedback into Playback" volume.
  22  *   
  23  *    The only playback controls that currently do anything are: -
  24  *    Analog Front
  25  *    Analog Rear
  26  *    Analog Center/LFE
  27  *    SPDIF Front
  28  *    SPDIF Rear
  29  *    SPDIF Center/LFE
  30  *   
  31  *    For capture from Mic in or Line in.
  32  *    Digital/Analog ( switch must be in Analog mode for CAPTURE. )
  33  * 
  34  *    CAPTURE feedback into PLAYBACK
  35  * 
  36  *  Changelog:
  37  *    Support interrupts per period.
  38  *    Removed noise from Center/LFE channel when in Analog mode.
  39  *    Rename and remove mixer controls.
  40  *  0.0.6
  41  *    Use separate card based DMA buffer for periods table list.
  42  *  0.0.7
  43  *    Change remove and rename ctrls into lists.
  44  *  0.0.8
  45  *    Try to fix capture sources.
  46  *  0.0.9
  47  *    Fix AC3 output.
  48  *    Enable S32_LE format support.
  49  *  0.0.10
  50  *    Enable playback 48000 and 96000 rates. (Rates other that these do not work, even with "plug:front".)
  51  *  0.0.11
  52  *    Add Model name recognition.
  53  *  0.0.12
  54  *    Correct interrupt timing. interrupt at end of period, instead of in the middle of a playback period.
  55  *    Remove redundent "voice" handling.
  56  *  0.0.13
  57  *    Single trigger call for multi channels.
  58  *  0.0.14
  59  *    Set limits based on what the sound card hardware can do.
  60  *    playback periods_min=2, periods_max=8
  61  *    capture hw constraints require period_size = n * 64 bytes.
  62  *    playback hw constraints require period_size = n * 64 bytes.
  63  *  0.0.15
  64  *    Minor updates.
  65  *  0.0.16
  66  *    Implement 192000 sample rate.
  67  *  0.0.17
  68  *    Add support for SB0410 and SB0413.
  69  *  0.0.18
  70  *    Modified Copyright message.
  71  *  0.0.19
  72  *    Finally fix support for SB Live 24 bit. SB0410 and SB0413.
  73  *    The output codec needs resetting, otherwise all output is muted.
  74  *  0.0.20
  75  *    Merge "pci_disable_device(pci);" fixes.
  76  *  0.0.21
  77  *    Add 4 capture channels. (SPDIF only comes in on channel 0. )
  78  *    Add SPDIF capture using optional digital I/O module for SB Live 24bit. (Analog capture does not yet work.)
  79  *  0.0.22
  80  *    Add support for MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97. From kiksen, bug #901
  81  *  0.0.23
  82  *    Implement support for Line-in capture on SB Live 24bit.
  83  *  0.0.24
  84  *    Add support for mute control on SB Live 24bit (cards w/ SPI DAC)
  85  *  0.0.25
  86  *    Powerdown SPI DAC channels when not in use
  87  *
  88  *  BUGS:
  89  *    Some stability problems when unloading the snd-ca0106 kernel module.
  90  *    --
  91  *
  92  *  TODO:
  93  *    4 Capture channels, only one implemented so far.
  94  *    Other capture rates apart from 48khz not implemented.
  95  *    MIDI
  96  *    --
  97  *  GENERAL INFO:
  98  *    Model: SB0310
  99  *    P17 Chip: CA0106-DAT
 100  *    AC97 Codec: STAC 9721
 101  *    ADC: Philips 1361T (Stereo 24bit)
 102  *    DAC: WM8746EDS (6-channel, 24bit, 192Khz)
 103  *
 104  *  GENERAL INFO:
 105  *    Model: SB0410
 106  *    P17 Chip: CA0106-DAT
 107  *    AC97 Codec: None
 108  *    ADC: WM8775EDS (4 Channel)
 109  *    DAC: CS4382 (114 dB, 24-Bit, 192 kHz, 8-Channel D/A Converter with DSD Support)
 110  *    SPDIF Out control switches between Mic in and SPDIF out.
 111  *    No sound out or mic input working yet.
 112  * 
 113  *  GENERAL INFO:
 114  *    Model: SB0413
 115  *    P17 Chip: CA0106-DAT
 116  *    AC97 Codec: None.
 117  *    ADC: Unknown
 118  *    DAC: Unknown
 119  *    Trying to handle it like the SB0410.
 120  *
 121  *  This code was initially based on code from ALSA's emu10k1x.c which is:
 122  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
 123  */
 124 #include <linux/delay.h>
 125 #include <linux/init.h>
 126 #include <linux/interrupt.h>
 127 #include <linux/pci.h>
 128 #include <linux/slab.h>
 129 #include <linux/module.h>
 130 #include <linux/dma-mapping.h>
 131 #include <sound/core.h>
 132 #include <sound/initval.h>
 133 #include <sound/pcm.h>
 134 #include <sound/ac97_codec.h>
 135 #include <sound/info.h>
 136 
 137 MODULE_AUTHOR("James Courtier-Dutton <James@superbug.demon.co.uk>");
 138 MODULE_DESCRIPTION("CA0106");
 139 MODULE_LICENSE("GPL");
 140 MODULE_SUPPORTED_DEVICE("{{Creative,SB CA0106 chip}}");
 141 
 142 // module parameters (see "Module Parameters")
 143 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
 144 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
 145 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
 146 static uint subsystem[SNDRV_CARDS]; /* Force card subsystem model */
 147 
 148 module_param_array(index, int, NULL, 0444);
 149 MODULE_PARM_DESC(index, "Index value for the CA0106 soundcard.");
 150 module_param_array(id, charp, NULL, 0444);
 151 MODULE_PARM_DESC(id, "ID string for the CA0106 soundcard.");
 152 module_param_array(enable, bool, NULL, 0444);
 153 MODULE_PARM_DESC(enable, "Enable the CA0106 soundcard.");
 154 module_param_array(subsystem, uint, NULL, 0444);
 155 MODULE_PARM_DESC(subsystem, "Force card subsystem model.");
 156 
 157 #include "ca0106.h"
 158 
 159 static struct snd_ca0106_details ca0106_chip_details[] = {
 160          /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
 161          /* It is really just a normal SB Live 24bit. */
 162          /* Tested:
 163           * See ALSA bug#3251
 164           */
 165          { .serial = 0x10131102,
 166            .name   = "X-Fi Extreme Audio [SBxxxx]",
 167            .gpio_type = 1,
 168            .i2c_adc = 1 } ,
 169          /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
 170          /* It is really just a normal SB Live 24bit. */
 171          /*
 172           * CTRL:CA0111-WTLF
 173           * ADC: WM8775SEDS
 174           * DAC: CS4382-KQZ
 175           */
 176          /* Tested:
 177           * Playback on front, rear, center/lfe speakers
 178           * Capture from Mic in.
 179           * Not-Tested:
 180           * Capture from Line in.
 181           * Playback to digital out.
 182           */
 183          { .serial = 0x10121102,
 184            .name   = "X-Fi Extreme Audio [SB0790]",
 185            .gpio_type = 1,
 186            .i2c_adc = 1 } ,
 187          /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
 188          /* AudigyLS[SB0310] */
 189          { .serial = 0x10021102,
 190            .name   = "AudigyLS [SB0310]",
 191            .ac97   = 1 } , 
 192          /* Unknown AudigyLS that also says SB0310 on it */
 193          { .serial = 0x10051102,
 194            .name   = "AudigyLS [SB0310b]",
 195            .ac97   = 1 } ,
 196          /* New Sound Blaster Live! 7.1 24bit. This does not have an AC97. 53SB041000001 */
 197          { .serial = 0x10061102,
 198            .name   = "Live! 7.1 24bit [SB0410]",
 199            .gpio_type = 1,
 200            .i2c_adc = 1 } ,
 201          /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
 202          { .serial = 0x10071102,
 203            .name   = "Live! 7.1 24bit [SB0413]",
 204            .gpio_type = 1,
 205            .i2c_adc = 1 } ,
 206          /* New Audigy SE. Has a different DAC. */
 207          /* SB0570:
 208           * CTRL:CA0106-DAT
 209           * ADC: WM8775EDS
 210           * DAC: WM8768GEDS
 211           */
 212          { .serial = 0x100a1102,
 213            .name   = "Audigy SE [SB0570]",
 214            .gpio_type = 1,
 215            .i2c_adc = 1,
 216            .spi_dac = 0x4021 } ,
 217          /* New Audigy LS. Has a different DAC. */
 218          /* SB0570:
 219           * CTRL:CA0106-DAT
 220           * ADC: WM8775EDS
 221           * DAC: WM8768GEDS
 222           */
 223          { .serial = 0x10111102,
 224            .name   = "Audigy SE OEM [SB0570a]",
 225            .gpio_type = 1,
 226            .i2c_adc = 1,
 227            .spi_dac = 0x4021 } ,
 228         /* Sound Blaster 5.1vx
 229          * Tested: Playback on front, rear, center/lfe speakers
 230          * Not-Tested: Capture
 231          */
 232         { .serial = 0x10041102,
 233           .name   = "Sound Blaster 5.1vx [SB1070]",
 234           .gpio_type = 1,
 235           .i2c_adc = 0,
 236           .spi_dac = 0x0124
 237          } ,
 238          /* MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97 */
 239          /* SB0438
 240           * CTRL:CA0106-DAT
 241           * ADC: WM8775SEDS
 242           * DAC: CS4382-KQZ
 243           */
 244          { .serial = 0x10091462,
 245            .name   = "MSI K8N Diamond MB [SB0438]",
 246            .gpio_type = 2,
 247            .i2c_adc = 1 } ,
 248          /* MSI K8N Diamond PLUS MB */
 249          { .serial = 0x10091102,
 250            .name   = "MSI K8N Diamond MB",
 251            .gpio_type = 2,
 252            .i2c_adc = 1,
 253            .spi_dac = 0x4021 } ,
 254         /* Giga-byte GA-G1975X mobo
 255          * Novell bnc#395807
 256          */
 257         /* FIXME: the GPIO and I2C setting aren't tested well */
 258         { .serial = 0x1458a006,
 259           .name = "Giga-byte GA-G1975X",
 260           .gpio_type = 1,
 261           .i2c_adc = 1 },
 262          /* Shuttle XPC SD31P which has an onboard Creative Labs
 263           * Sound Blaster Live! 24-bit EAX
 264           * high-definition 7.1 audio processor".
 265           * Added using info from andrewvegan in alsa bug #1298
 266           */
 267          { .serial = 0x30381297,
 268            .name   = "Shuttle XPC SD31P [SD31P]",
 269            .gpio_type = 1,
 270            .i2c_adc = 1 } ,
 271         /* Shuttle XPC SD11G5 which has an onboard Creative Labs
 272          * Sound Blaster Live! 24-bit EAX
 273          * high-definition 7.1 audio processor".
 274          * Fixes ALSA bug#1600
 275          */
 276         { .serial = 0x30411297,
 277           .name = "Shuttle XPC SD11G5 [SD11G5]",
 278           .gpio_type = 1,
 279           .i2c_adc = 1 } ,
 280          { .serial = 0,
 281            .name   = "AudigyLS [Unknown]" }
 282 };
 283 
 284 /* hardware definition */
 285 static const struct snd_pcm_hardware snd_ca0106_playback_hw = {
 286         .info =                 SNDRV_PCM_INFO_MMAP | 
 287                                 SNDRV_PCM_INFO_INTERLEAVED |
 288                                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 289                                 SNDRV_PCM_INFO_MMAP_VALID |
 290                                 SNDRV_PCM_INFO_SYNC_START,
 291         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
 292         .rates =                (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |
 293                                  SNDRV_PCM_RATE_192000),
 294         .rate_min =             48000,
 295         .rate_max =             192000,
 296         .channels_min =         2,  //1,
 297         .channels_max =         2,  //6,
 298         .buffer_bytes_max =     ((65536 - 64) * 8),
 299         .period_bytes_min =     64,
 300         .period_bytes_max =     (65536 - 64),
 301         .periods_min =          2,
 302         .periods_max =          8,
 303         .fifo_size =            0,
 304 };
 305 
 306 static const struct snd_pcm_hardware snd_ca0106_capture_hw = {
 307         .info =                 (SNDRV_PCM_INFO_MMAP | 
 308                                  SNDRV_PCM_INFO_INTERLEAVED |
 309                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 310                                  SNDRV_PCM_INFO_MMAP_VALID),
 311         .formats =              SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
 312 #if 0 /* FIXME: looks like 44.1kHz capture causes noisy output on 48kHz */
 313         .rates =                (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
 314                                  SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
 315         .rate_min =             44100,
 316 #else
 317         .rates =                (SNDRV_PCM_RATE_48000 |
 318                                  SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
 319         .rate_min =             48000,
 320 #endif /* FIXME */
 321         .rate_max =             192000,
 322         .channels_min =         2,
 323         .channels_max =         2,
 324         .buffer_bytes_max =     65536 - 128,
 325         .period_bytes_min =     64,
 326         .period_bytes_max =     32768 - 64,
 327         .periods_min =          2,
 328         .periods_max =          2,
 329         .fifo_size =            0,
 330 };
 331 
 332 unsigned int snd_ca0106_ptr_read(struct snd_ca0106 * emu, 
 333                                           unsigned int reg, 
 334                                           unsigned int chn)
 335 {
 336         unsigned long flags;
 337         unsigned int regptr, val;
 338   
 339         regptr = (reg << 16) | chn;
 340 
 341         spin_lock_irqsave(&emu->emu_lock, flags);
 342         outl(regptr, emu->port + PTR);
 343         val = inl(emu->port + DATA);
 344         spin_unlock_irqrestore(&emu->emu_lock, flags);
 345         return val;
 346 }
 347 
 348 void snd_ca0106_ptr_write(struct snd_ca0106 *emu, 
 349                                    unsigned int reg, 
 350                                    unsigned int chn, 
 351                                    unsigned int data)
 352 {
 353         unsigned int regptr;
 354         unsigned long flags;
 355 
 356         regptr = (reg << 16) | chn;
 357 
 358         spin_lock_irqsave(&emu->emu_lock, flags);
 359         outl(regptr, emu->port + PTR);
 360         outl(data, emu->port + DATA);
 361         spin_unlock_irqrestore(&emu->emu_lock, flags);
 362 }
 363 
 364 int snd_ca0106_spi_write(struct snd_ca0106 * emu,
 365                                    unsigned int data)
 366 {
 367         unsigned int reset, set;
 368         unsigned int reg, tmp;
 369         int n, result;
 370         reg = SPI;
 371         if (data > 0xffff) /* Only 16bit values allowed */
 372                 return 1;
 373         tmp = snd_ca0106_ptr_read(emu, reg, 0);
 374         reset = (tmp & ~0x3ffff) | 0x20000; /* Set xxx20000 */
 375         set = reset | 0x10000; /* Set xxx1xxxx */
 376         snd_ca0106_ptr_write(emu, reg, 0, reset | data);
 377         tmp = snd_ca0106_ptr_read(emu, reg, 0); /* write post */
 378         snd_ca0106_ptr_write(emu, reg, 0, set | data);
 379         result = 1;
 380         /* Wait for status bit to return to 0 */
 381         for (n = 0; n < 100; n++) {
 382                 udelay(10);
 383                 tmp = snd_ca0106_ptr_read(emu, reg, 0);
 384                 if (!(tmp & 0x10000)) {
 385                         result = 0;
 386                         break;
 387                 }
 388         }
 389         if (result) /* Timed out */
 390                 return 1;
 391         snd_ca0106_ptr_write(emu, reg, 0, reset | data);
 392         tmp = snd_ca0106_ptr_read(emu, reg, 0); /* Write post */
 393         return 0;
 394 }
 395 
 396 /* The ADC does not support i2c read, so only write is implemented */
 397 int snd_ca0106_i2c_write(struct snd_ca0106 *emu,
 398                                 u32 reg,
 399                                 u32 value)
 400 {
 401         u32 tmp;
 402         int timeout = 0;
 403         int status;
 404         int retry;
 405         if ((reg > 0x7f) || (value > 0x1ff)) {
 406                 dev_err(emu->card->dev, "i2c_write: invalid values.\n");
 407                 return -EINVAL;
 408         }
 409 
 410         tmp = reg << 25 | value << 16;
 411         /*
 412         dev_dbg(emu->card->dev, "I2C-write:reg=0x%x, value=0x%x\n", reg, value);
 413         */
 414         /* Not sure what this I2C channel controls. */
 415         /* snd_ca0106_ptr_write(emu, I2C_D0, 0, tmp); */
 416 
 417         /* This controls the I2C connected to the WM8775 ADC Codec */
 418         snd_ca0106_ptr_write(emu, I2C_D1, 0, tmp);
 419 
 420         for (retry = 0; retry < 10; retry++) {
 421                 /* Send the data to i2c */
 422                 //tmp = snd_ca0106_ptr_read(emu, I2C_A, 0);
 423                 //tmp = tmp & ~(I2C_A_ADC_READ|I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD_MASK);
 424                 tmp = 0;
 425                 tmp = tmp | (I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD);
 426                 snd_ca0106_ptr_write(emu, I2C_A, 0, tmp);
 427 
 428                 /* Wait till the transaction ends */
 429                 while (1) {
 430                         status = snd_ca0106_ptr_read(emu, I2C_A, 0);
 431                         /*dev_dbg(emu->card->dev, "I2C:status=0x%x\n", status);*/
 432                         timeout++;
 433                         if ((status & I2C_A_ADC_START) == 0)
 434                                 break;
 435 
 436                         if (timeout > 1000)
 437                                 break;
 438                 }
 439                 //Read back and see if the transaction is successful
 440                 if ((status & I2C_A_ADC_ABORT) == 0)
 441                         break;
 442         }
 443 
 444         if (retry == 10) {
 445                 dev_err(emu->card->dev, "Writing to ADC failed!\n");
 446                 return -EINVAL;
 447         }
 448     
 449         return 0;
 450 }
 451 
 452 
 453 static void snd_ca0106_intr_enable(struct snd_ca0106 *emu, unsigned int intrenb)
 454 {
 455         unsigned long flags;
 456         unsigned int intr_enable;
 457 
 458         spin_lock_irqsave(&emu->emu_lock, flags);
 459         intr_enable = inl(emu->port + INTE) | intrenb;
 460         outl(intr_enable, emu->port + INTE);
 461         spin_unlock_irqrestore(&emu->emu_lock, flags);
 462 }
 463 
 464 static void snd_ca0106_intr_disable(struct snd_ca0106 *emu, unsigned int intrenb)
 465 {
 466         unsigned long flags;
 467         unsigned int intr_enable;
 468 
 469         spin_lock_irqsave(&emu->emu_lock, flags);
 470         intr_enable = inl(emu->port + INTE) & ~intrenb;
 471         outl(intr_enable, emu->port + INTE);
 472         spin_unlock_irqrestore(&emu->emu_lock, flags);
 473 }
 474 
 475 
 476 static void snd_ca0106_pcm_free_substream(struct snd_pcm_runtime *runtime)
 477 {
 478         kfree(runtime->private_data);
 479 }
 480 
 481 static const int spi_dacd_reg[] = {
 482         SPI_DACD0_REG,
 483         SPI_DACD1_REG,
 484         SPI_DACD2_REG,
 485         0,
 486         SPI_DACD4_REG,
 487 };
 488 static const int spi_dacd_bit[] = {
 489         SPI_DACD0_BIT,
 490         SPI_DACD1_BIT,
 491         SPI_DACD2_BIT,
 492         0,
 493         SPI_DACD4_BIT,
 494 };
 495 
 496 static void restore_spdif_bits(struct snd_ca0106 *chip, int idx)
 497 {
 498         if (chip->spdif_str_bits[idx] != chip->spdif_bits[idx]) {
 499                 chip->spdif_str_bits[idx] = chip->spdif_bits[idx];
 500                 snd_ca0106_ptr_write(chip, SPCS0 + idx, 0,
 501                                      chip->spdif_str_bits[idx]);
 502         }
 503 }
 504 
 505 static int snd_ca0106_channel_dac(struct snd_ca0106 *chip,
 506                                   struct snd_ca0106_details *details,
 507                                   int channel_id)
 508 {
 509         switch (channel_id) {
 510         case PCM_FRONT_CHANNEL:
 511                 return (details->spi_dac & 0xf000) >> (4 * 3);
 512         case PCM_REAR_CHANNEL:
 513                 return (details->spi_dac & 0x0f00) >> (4 * 2);
 514         case PCM_CENTER_LFE_CHANNEL:
 515                 return (details->spi_dac & 0x00f0) >> (4 * 1);
 516         case PCM_UNKNOWN_CHANNEL:
 517                 return (details->spi_dac & 0x000f) >> (4 * 0);
 518         default:
 519                 dev_dbg(chip->card->dev, "ca0106: unknown channel_id %d\n",
 520                            channel_id);
 521         }
 522         return 0;
 523 }
 524 
 525 static int snd_ca0106_pcm_power_dac(struct snd_ca0106 *chip, int channel_id,
 526                                     int power)
 527 {
 528         if (chip->details->spi_dac) {
 529                 const int dac = snd_ca0106_channel_dac(chip, chip->details,
 530                                                        channel_id);
 531                 const int reg = spi_dacd_reg[dac];
 532                 const int bit = spi_dacd_bit[dac];
 533 
 534                 if (power)
 535                         /* Power up */
 536                         chip->spi_dac_reg[reg] &= ~bit;
 537                 else
 538                         /* Power down */
 539                         chip->spi_dac_reg[reg] |= bit;
 540                 return snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
 541         }
 542         return 0;
 543 }
 544 
 545 /* open_playback callback */
 546 static int snd_ca0106_pcm_open_playback_channel(struct snd_pcm_substream *substream,
 547                                                 int channel_id)
 548 {
 549         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 550         struct snd_ca0106_channel *channel = &(chip->playback_channels[channel_id]);
 551         struct snd_ca0106_pcm *epcm;
 552         struct snd_pcm_runtime *runtime = substream->runtime;
 553         int err;
 554 
 555         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 556 
 557         if (epcm == NULL)
 558                 return -ENOMEM;
 559         epcm->emu = chip;
 560         epcm->substream = substream;
 561         epcm->channel_id=channel_id;
 562   
 563         runtime->private_data = epcm;
 564         runtime->private_free = snd_ca0106_pcm_free_substream;
 565   
 566         runtime->hw = snd_ca0106_playback_hw;
 567 
 568         channel->emu = chip;
 569         channel->number = channel_id;
 570 
 571         channel->use = 1;
 572         /*
 573         dev_dbg(chip->card->dev, "open:channel_id=%d, chip=%p, channel=%p\n",
 574                channel_id, chip, channel);
 575         */
 576         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 577         channel->epcm = epcm;
 578         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 579                 return err;
 580         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 581                 return err;
 582         snd_pcm_set_sync(substream);
 583 
 584         /* Front channel dac should already be on */
 585         if (channel_id != PCM_FRONT_CHANNEL) {
 586                 err = snd_ca0106_pcm_power_dac(chip, channel_id, 1);
 587                 if (err < 0)
 588                         return err;
 589         }
 590 
 591         restore_spdif_bits(chip, channel_id);
 592 
 593         return 0;
 594 }
 595 
 596 /* close callback */
 597 static int snd_ca0106_pcm_close_playback(struct snd_pcm_substream *substream)
 598 {
 599         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 600         struct snd_pcm_runtime *runtime = substream->runtime;
 601         struct snd_ca0106_pcm *epcm = runtime->private_data;
 602         chip->playback_channels[epcm->channel_id].use = 0;
 603 
 604         restore_spdif_bits(chip, epcm->channel_id);
 605 
 606         /* Front channel dac should stay on */
 607         if (epcm->channel_id != PCM_FRONT_CHANNEL) {
 608                 int err;
 609                 err = snd_ca0106_pcm_power_dac(chip, epcm->channel_id, 0);
 610                 if (err < 0)
 611                         return err;
 612         }
 613 
 614         /* FIXME: maybe zero others */
 615         return 0;
 616 }
 617 
 618 static int snd_ca0106_pcm_open_playback_front(struct snd_pcm_substream *substream)
 619 {
 620         return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
 621 }
 622 
 623 static int snd_ca0106_pcm_open_playback_center_lfe(struct snd_pcm_substream *substream)
 624 {
 625         return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
 626 }
 627 
 628 static int snd_ca0106_pcm_open_playback_unknown(struct snd_pcm_substream *substream)
 629 {
 630         return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
 631 }
 632 
 633 static int snd_ca0106_pcm_open_playback_rear(struct snd_pcm_substream *substream)
 634 {
 635         return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
 636 }
 637 
 638 /* open_capture callback */
 639 static int snd_ca0106_pcm_open_capture_channel(struct snd_pcm_substream *substream,
 640                                                int channel_id)
 641 {
 642         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 643         struct snd_ca0106_channel *channel = &(chip->capture_channels[channel_id]);
 644         struct snd_ca0106_pcm *epcm;
 645         struct snd_pcm_runtime *runtime = substream->runtime;
 646         int err;
 647 
 648         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 649         if (!epcm)
 650                 return -ENOMEM;
 651 
 652         epcm->emu = chip;
 653         epcm->substream = substream;
 654         epcm->channel_id=channel_id;
 655   
 656         runtime->private_data = epcm;
 657         runtime->private_free = snd_ca0106_pcm_free_substream;
 658   
 659         runtime->hw = snd_ca0106_capture_hw;
 660 
 661         channel->emu = chip;
 662         channel->number = channel_id;
 663 
 664         channel->use = 1;
 665         /*
 666         dev_dbg(chip->card->dev, "open:channel_id=%d, chip=%p, channel=%p\n",
 667                channel_id, chip, channel);
 668         */
 669         //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
 670         channel->epcm = epcm;
 671         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 672                 return err;
 673         //snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
 674         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 675                 return err;
 676         return 0;
 677 }
 678 
 679 /* close callback */
 680 static int snd_ca0106_pcm_close_capture(struct snd_pcm_substream *substream)
 681 {
 682         struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
 683         struct snd_pcm_runtime *runtime = substream->runtime;
 684         struct snd_ca0106_pcm *epcm = runtime->private_data;
 685         chip->capture_channels[epcm->channel_id].use = 0;
 686         /* FIXME: maybe zero others */
 687         return 0;
 688 }
 689 
 690 static int snd_ca0106_pcm_open_0_capture(struct snd_pcm_substream *substream)
 691 {
 692         return snd_ca0106_pcm_open_capture_channel(substream, 0);
 693 }
 694 
 695 static int snd_ca0106_pcm_open_1_capture(struct snd_pcm_substream *substream)
 696 {
 697         return snd_ca0106_pcm_open_capture_channel(substream, 1);
 698 }
 699 
 700 static int snd_ca0106_pcm_open_2_capture(struct snd_pcm_substream *substream)
 701 {
 702         return snd_ca0106_pcm_open_capture_channel(substream, 2);
 703 }
 704 
 705 static int snd_ca0106_pcm_open_3_capture(struct snd_pcm_substream *substream)
 706 {
 707         return snd_ca0106_pcm_open_capture_channel(substream, 3);
 708 }
 709 
 710 /* hw_params callback */
 711 static int snd_ca0106_pcm_hw_params_playback(struct snd_pcm_substream *substream,
 712                                       struct snd_pcm_hw_params *hw_params)
 713 {
 714         return snd_pcm_lib_malloc_pages(substream,
 715                                         params_buffer_bytes(hw_params));
 716 }
 717 
 718 /* hw_free callback */
 719 static int snd_ca0106_pcm_hw_free_playback(struct snd_pcm_substream *substream)
 720 {
 721         return snd_pcm_lib_free_pages(substream);
 722 }
 723 
 724 /* hw_params callback */
 725 static int snd_ca0106_pcm_hw_params_capture(struct snd_pcm_substream *substream,
 726                                       struct snd_pcm_hw_params *hw_params)
 727 {
 728         return snd_pcm_lib_malloc_pages(substream,
 729                                         params_buffer_bytes(hw_params));
 730 }
 731 
 732 /* hw_free callback */
 733 static int snd_ca0106_pcm_hw_free_capture(struct snd_pcm_substream *substream)
 734 {
 735         return snd_pcm_lib_free_pages(substream);
 736 }
 737 
 738 /* prepare playback callback */
 739 static int snd_ca0106_pcm_prepare_playback(struct snd_pcm_substream *substream)
 740 {
 741         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 742         struct snd_pcm_runtime *runtime = substream->runtime;
 743         struct snd_ca0106_pcm *epcm = runtime->private_data;
 744         int channel = epcm->channel_id;
 745         u32 *table_base = (u32 *)(emu->buffer.area+(8*16*channel));
 746         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
 747         u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
 748         u32 hcfg_set = 0x00000000;
 749         u32 hcfg;
 750         u32 reg40_mask = 0x30000 << (channel<<1);
 751         u32 reg40_set = 0;
 752         u32 reg40;
 753         /* FIXME: Depending on mixer selection of SPDIF out or not, select the spdif rate or the DAC rate. */
 754         u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
 755         u32 reg71_set = 0;
 756         u32 reg71;
 757         int i;
 758         
 759 #if 0 /* debug */
 760         dev_dbg(emu->card->dev,
 761                    "prepare:channel_number=%d, rate=%d, format=0x%x, "
 762                    "channels=%d, buffer_size=%ld, period_size=%ld, "
 763                    "periods=%u, frames_to_bytes=%d\n",
 764                    channel, runtime->rate, runtime->format,
 765                    runtime->channels, runtime->buffer_size,
 766                    runtime->period_size, runtime->periods,
 767                    frames_to_bytes(runtime, 1));
 768         dev_dbg(emu->card->dev,
 769                 "dma_addr=%x, dma_area=%p, table_base=%p\n",
 770                    runtime->dma_addr, runtime->dma_area, table_base);
 771         dev_dbg(emu->card->dev,
 772                 "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
 773                    emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 774 #endif /* debug */
 775         /* Rate can be set per channel. */
 776         /* reg40 control host to fifo */
 777         /* reg71 controls DAC rate. */
 778         switch (runtime->rate) {
 779         case 44100:
 780                 reg40_set = 0x10000 << (channel<<1);
 781                 reg71_set = 0x01010000; 
 782                 break;
 783         case 48000:
 784                 reg40_set = 0;
 785                 reg71_set = 0; 
 786                 break;
 787         case 96000:
 788                 reg40_set = 0x20000 << (channel<<1);
 789                 reg71_set = 0x02020000; 
 790                 break;
 791         case 192000:
 792                 reg40_set = 0x30000 << (channel<<1);
 793                 reg71_set = 0x03030000; 
 794                 break;
 795         default:
 796                 reg40_set = 0;
 797                 reg71_set = 0; 
 798                 break;
 799         }
 800         /* Format is a global setting */
 801         /* FIXME: Only let the first channel accessed set this. */
 802         switch (runtime->format) {
 803         case SNDRV_PCM_FORMAT_S16_LE:
 804                 hcfg_set = 0;
 805                 break;
 806         case SNDRV_PCM_FORMAT_S32_LE:
 807                 hcfg_set = HCFG_PLAYBACK_S32_LE;
 808                 break;
 809         default:
 810                 hcfg_set = 0;
 811                 break;
 812         }
 813         hcfg = inl(emu->port + HCFG) ;
 814         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 815         outl(hcfg, emu->port + HCFG);
 816         reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
 817         reg40 = (reg40 & ~reg40_mask) | reg40_set;
 818         snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
 819         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 820         reg71 = (reg71 & ~reg71_mask) | reg71_set;
 821         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 822 
 823         /* FIXME: Check emu->buffer.size before actually writing to it. */
 824         for(i=0; i < runtime->periods; i++) {
 825                 table_base[i*2] = runtime->dma_addr + (i * period_size_bytes);
 826                 table_base[i*2+1] = period_size_bytes << 16;
 827         }
 828  
 829         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
 830         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
 831         snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
 832         snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
 833         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
 834         /* FIXME  test what 0 bytes does. */
 835         snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
 836         snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
 837         snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
 838         snd_ca0106_ptr_write(emu, 0x08, channel, 0);
 839         snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
 840 #if 0
 841         snd_ca0106_ptr_write(emu, SPCS0, 0,
 842                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
 843                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
 844                                SPCS_GENERATIONSTATUS | 0x00001200 |
 845                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
 846 #endif
 847 
 848         return 0;
 849 }
 850 
 851 /* prepare capture callback */
 852 static int snd_ca0106_pcm_prepare_capture(struct snd_pcm_substream *substream)
 853 {
 854         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 855         struct snd_pcm_runtime *runtime = substream->runtime;
 856         struct snd_ca0106_pcm *epcm = runtime->private_data;
 857         int channel = epcm->channel_id;
 858         u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
 859         u32 hcfg_set = 0x00000000;
 860         u32 hcfg;
 861         u32 over_sampling=0x2;
 862         u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
 863         u32 reg71_set = 0;
 864         u32 reg71;
 865         
 866 #if 0 /* debug */
 867         dev_dbg(emu->card->dev,
 868                    "prepare:channel_number=%d, rate=%d, format=0x%x, "
 869                    "channels=%d, buffer_size=%ld, period_size=%ld, "
 870                    "periods=%u, frames_to_bytes=%d\n",
 871                    channel, runtime->rate, runtime->format,
 872                    runtime->channels, runtime->buffer_size,
 873                    runtime->period_size, runtime->periods,
 874                    frames_to_bytes(runtime, 1));
 875         dev_dbg(emu->card->dev,
 876                 "dma_addr=%x, dma_area=%p, table_base=%p\n",
 877                    runtime->dma_addr, runtime->dma_area, table_base);
 878         dev_dbg(emu->card->dev,
 879                 "dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
 880                    emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
 881 #endif /* debug */
 882         /* reg71 controls ADC rate. */
 883         switch (runtime->rate) {
 884         case 44100:
 885                 reg71_set = 0x00004000;
 886                 break;
 887         case 48000:
 888                 reg71_set = 0; 
 889                 break;
 890         case 96000:
 891                 reg71_set = 0x00008000;
 892                 over_sampling=0xa;
 893                 break;
 894         case 192000:
 895                 reg71_set = 0x0000c000; 
 896                 over_sampling=0xa;
 897                 break;
 898         default:
 899                 reg71_set = 0; 
 900                 break;
 901         }
 902         /* Format is a global setting */
 903         /* FIXME: Only let the first channel accessed set this. */
 904         switch (runtime->format) {
 905         case SNDRV_PCM_FORMAT_S16_LE:
 906                 hcfg_set = 0;
 907                 break;
 908         case SNDRV_PCM_FORMAT_S32_LE:
 909                 hcfg_set = HCFG_CAPTURE_S32_LE;
 910                 break;
 911         default:
 912                 hcfg_set = 0;
 913                 break;
 914         }
 915         hcfg = inl(emu->port + HCFG) ;
 916         hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
 917         outl(hcfg, emu->port + HCFG);
 918         reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
 919         reg71 = (reg71 & ~reg71_mask) | reg71_set;
 920         snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
 921         if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
 922                 snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
 923         }
 924 
 925 
 926         /*
 927         dev_dbg(emu->card->dev,
 928                "prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, "
 929                "buffer_size=%ld, period_size=%ld, frames_to_bytes=%d\n",
 930                channel, runtime->rate, runtime->format, runtime->channels,
 931                runtime->buffer_size, runtime->period_size,
 932                frames_to_bytes(runtime, 1));
 933         */
 934         snd_ca0106_ptr_write(emu, 0x13, channel, 0);
 935         snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
 936         snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
 937         snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
 938 
 939         return 0;
 940 }
 941 
 942 /* trigger_playback callback */
 943 static int snd_ca0106_pcm_trigger_playback(struct snd_pcm_substream *substream,
 944                                     int cmd)
 945 {
 946         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
 947         struct snd_pcm_runtime *runtime;
 948         struct snd_ca0106_pcm *epcm;
 949         int channel;
 950         int result = 0;
 951         struct snd_pcm_substream *s;
 952         u32 basic = 0;
 953         u32 extended = 0;
 954         u32 bits;
 955         int running = 0;
 956 
 957         switch (cmd) {
 958         case SNDRV_PCM_TRIGGER_START:
 959         case SNDRV_PCM_TRIGGER_RESUME:
 960                 running = 1;
 961                 break;
 962         case SNDRV_PCM_TRIGGER_STOP:
 963         case SNDRV_PCM_TRIGGER_SUSPEND:
 964         default:
 965                 running = 0;
 966                 break;
 967         }
 968         snd_pcm_group_for_each_entry(s, substream) {
 969                 if (snd_pcm_substream_chip(s) != emu ||
 970                     s->stream != SNDRV_PCM_STREAM_PLAYBACK)
 971                         continue;
 972                 runtime = s->runtime;
 973                 epcm = runtime->private_data;
 974                 channel = epcm->channel_id;
 975                 /* dev_dbg(emu->card->dev, "channel=%d\n", channel); */
 976                 epcm->running = running;
 977                 basic |= (0x1 << channel);
 978                 extended |= (0x10 << channel);
 979                 snd_pcm_trigger_done(s, substream);
 980         }
 981         /* dev_dbg(emu->card->dev, "basic=0x%x, extended=0x%x\n",basic, extended); */
 982 
 983         switch (cmd) {
 984         case SNDRV_PCM_TRIGGER_START:
 985         case SNDRV_PCM_TRIGGER_RESUME:
 986                 bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
 987                 bits |= extended;
 988                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
 989                 bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
 990                 bits |= basic;
 991                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
 992                 break;
 993         case SNDRV_PCM_TRIGGER_STOP:
 994         case SNDRV_PCM_TRIGGER_SUSPEND:
 995                 bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
 996                 bits &= ~basic;
 997                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
 998                 bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
 999                 bits &= ~extended;
1000                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
1001                 break;
1002         default:
1003                 result = -EINVAL;
1004                 break;
1005         }
1006         return result;
1007 }
1008 
1009 /* trigger_capture callback */
1010 static int snd_ca0106_pcm_trigger_capture(struct snd_pcm_substream *substream,
1011                                     int cmd)
1012 {
1013         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1014         struct snd_pcm_runtime *runtime = substream->runtime;
1015         struct snd_ca0106_pcm *epcm = runtime->private_data;
1016         int channel = epcm->channel_id;
1017         int result = 0;
1018 
1019         switch (cmd) {
1020         case SNDRV_PCM_TRIGGER_START:
1021                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
1022                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
1023                 epcm->running = 1;
1024                 break;
1025         case SNDRV_PCM_TRIGGER_STOP:
1026                 snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
1027                 snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
1028                 epcm->running = 0;
1029                 break;
1030         default:
1031                 result = -EINVAL;
1032                 break;
1033         }
1034         return result;
1035 }
1036 
1037 /* pointer_playback callback */
1038 static snd_pcm_uframes_t
1039 snd_ca0106_pcm_pointer_playback(struct snd_pcm_substream *substream)
1040 {
1041         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1042         struct snd_pcm_runtime *runtime = substream->runtime;
1043         struct snd_ca0106_pcm *epcm = runtime->private_data;
1044         unsigned int ptr, prev_ptr;
1045         int channel = epcm->channel_id;
1046         int timeout = 10;
1047 
1048         if (!epcm->running)
1049                 return 0;
1050 
1051         prev_ptr = -1;
1052         do {
1053                 ptr = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
1054                 ptr = (ptr >> 3) * runtime->period_size;
1055                 ptr += bytes_to_frames(runtime,
1056                         snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel));
1057                 if (ptr >= runtime->buffer_size)
1058                         ptr -= runtime->buffer_size;
1059                 if (prev_ptr == ptr)
1060                         return ptr;
1061                 prev_ptr = ptr;
1062         } while (--timeout);
1063         dev_warn(emu->card->dev, "ca0106: unstable DMA pointer!\n");
1064         return 0;
1065 }
1066 
1067 /* pointer_capture callback */
1068 static snd_pcm_uframes_t
1069 snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream *substream)
1070 {
1071         struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1072         struct snd_pcm_runtime *runtime = substream->runtime;
1073         struct snd_ca0106_pcm *epcm = runtime->private_data;
1074         snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
1075         int channel = epcm->channel_id;
1076 
1077         if (!epcm->running)
1078                 return 0;
1079 
1080         ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
1081         ptr2 = bytes_to_frames(runtime, ptr1);
1082         ptr=ptr2;
1083         if (ptr >= runtime->buffer_size)
1084                 ptr -= runtime->buffer_size;
1085         /*
1086         dev_dbg(emu->card->dev, "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
1087                "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
1088                ptr1, ptr2, ptr, (int)runtime->buffer_size,
1089                (int)runtime->period_size, (int)runtime->frame_bits,
1090                (int)runtime->rate);
1091         */
1092         return ptr;
1093 }
1094 
1095 /* operators */
1096 static const struct snd_pcm_ops snd_ca0106_playback_front_ops = {
1097         .open =        snd_ca0106_pcm_open_playback_front,
1098         .close =       snd_ca0106_pcm_close_playback,
1099         .ioctl =       snd_pcm_lib_ioctl,
1100         .hw_params =   snd_ca0106_pcm_hw_params_playback,
1101         .hw_free =     snd_ca0106_pcm_hw_free_playback,
1102         .prepare =     snd_ca0106_pcm_prepare_playback,
1103         .trigger =     snd_ca0106_pcm_trigger_playback,
1104         .pointer =     snd_ca0106_pcm_pointer_playback,
1105 };
1106 
1107 static const struct snd_pcm_ops snd_ca0106_capture_0_ops = {
1108         .open =        snd_ca0106_pcm_open_0_capture,
1109         .close =       snd_ca0106_pcm_close_capture,
1110         .ioctl =       snd_pcm_lib_ioctl,
1111         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1112         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1113         .prepare =     snd_ca0106_pcm_prepare_capture,
1114         .trigger =     snd_ca0106_pcm_trigger_capture,
1115         .pointer =     snd_ca0106_pcm_pointer_capture,
1116 };
1117 
1118 static const struct snd_pcm_ops snd_ca0106_capture_1_ops = {
1119         .open =        snd_ca0106_pcm_open_1_capture,
1120         .close =       snd_ca0106_pcm_close_capture,
1121         .ioctl =       snd_pcm_lib_ioctl,
1122         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1123         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1124         .prepare =     snd_ca0106_pcm_prepare_capture,
1125         .trigger =     snd_ca0106_pcm_trigger_capture,
1126         .pointer =     snd_ca0106_pcm_pointer_capture,
1127 };
1128 
1129 static const struct snd_pcm_ops snd_ca0106_capture_2_ops = {
1130         .open =        snd_ca0106_pcm_open_2_capture,
1131         .close =       snd_ca0106_pcm_close_capture,
1132         .ioctl =       snd_pcm_lib_ioctl,
1133         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1134         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1135         .prepare =     snd_ca0106_pcm_prepare_capture,
1136         .trigger =     snd_ca0106_pcm_trigger_capture,
1137         .pointer =     snd_ca0106_pcm_pointer_capture,
1138 };
1139 
1140 static const struct snd_pcm_ops snd_ca0106_capture_3_ops = {
1141         .open =        snd_ca0106_pcm_open_3_capture,
1142         .close =       snd_ca0106_pcm_close_capture,
1143         .ioctl =       snd_pcm_lib_ioctl,
1144         .hw_params =   snd_ca0106_pcm_hw_params_capture,
1145         .hw_free =     snd_ca0106_pcm_hw_free_capture,
1146         .prepare =     snd_ca0106_pcm_prepare_capture,
1147         .trigger =     snd_ca0106_pcm_trigger_capture,
1148         .pointer =     snd_ca0106_pcm_pointer_capture,
1149 };
1150 
1151 static const struct snd_pcm_ops snd_ca0106_playback_center_lfe_ops = {
1152         .open =         snd_ca0106_pcm_open_playback_center_lfe,
1153         .close =        snd_ca0106_pcm_close_playback,
1154         .ioctl =        snd_pcm_lib_ioctl,
1155         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1156         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1157         .prepare =      snd_ca0106_pcm_prepare_playback,     
1158         .trigger =      snd_ca0106_pcm_trigger_playback,  
1159         .pointer =      snd_ca0106_pcm_pointer_playback, 
1160 };
1161 
1162 static const struct snd_pcm_ops snd_ca0106_playback_unknown_ops = {
1163         .open =         snd_ca0106_pcm_open_playback_unknown,
1164         .close =        snd_ca0106_pcm_close_playback,
1165         .ioctl =        snd_pcm_lib_ioctl,
1166         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1167         .hw_free =      snd_ca0106_pcm_hw_free_playback,
1168         .prepare =      snd_ca0106_pcm_prepare_playback,     
1169         .trigger =      snd_ca0106_pcm_trigger_playback,  
1170         .pointer =      snd_ca0106_pcm_pointer_playback, 
1171 };
1172 
1173 static const struct snd_pcm_ops snd_ca0106_playback_rear_ops = {
1174         .open =         snd_ca0106_pcm_open_playback_rear,
1175         .close =        snd_ca0106_pcm_close_playback,
1176         .ioctl =        snd_pcm_lib_ioctl,
1177         .hw_params =    snd_ca0106_pcm_hw_params_playback,
1178                 .hw_free =      snd_ca0106_pcm_hw_free_playback,
1179         .prepare =      snd_ca0106_pcm_prepare_playback,     
1180         .trigger =      snd_ca0106_pcm_trigger_playback,  
1181         .pointer =      snd_ca0106_pcm_pointer_playback, 
1182 };
1183 
1184 
1185 static unsigned short snd_ca0106_ac97_read(struct snd_ac97 *ac97,
1186                                              unsigned short reg)
1187 {
1188         struct snd_ca0106 *emu = ac97->private_data;
1189         unsigned long flags;
1190         unsigned short val;
1191 
1192         spin_lock_irqsave(&emu->emu_lock, flags);
1193         outb(reg, emu->port + AC97ADDRESS);
1194         val = inw(emu->port + AC97DATA);
1195         spin_unlock_irqrestore(&emu->emu_lock, flags);
1196         return val;
1197 }
1198 
1199 static void snd_ca0106_ac97_write(struct snd_ac97 *ac97,
1200                                     unsigned short reg, unsigned short val)
1201 {
1202         struct snd_ca0106 *emu = ac97->private_data;
1203         unsigned long flags;
1204   
1205         spin_lock_irqsave(&emu->emu_lock, flags);
1206         outb(reg, emu->port + AC97ADDRESS);
1207         outw(val, emu->port + AC97DATA);
1208         spin_unlock_irqrestore(&emu->emu_lock, flags);
1209 }
1210 
1211 static int snd_ca0106_ac97(struct snd_ca0106 *chip)
1212 {
1213         struct snd_ac97_bus *pbus;
1214         struct snd_ac97_template ac97;
1215         int err;
1216         static struct snd_ac97_bus_ops ops = {
1217                 .write = snd_ca0106_ac97_write,
1218                 .read = snd_ca0106_ac97_read,
1219         };
1220   
1221         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
1222                 return err;
1223         pbus->no_vra = 1; /* we don't need VRA */
1224 
1225         memset(&ac97, 0, sizeof(ac97));
1226         ac97.private_data = chip;
1227         ac97.scaps = AC97_SCAP_NO_SPDIF;
1228         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1229 }
1230 
1231 static void ca0106_stop_chip(struct snd_ca0106 *chip);
1232 
1233 static int snd_ca0106_free(struct snd_ca0106 *chip)
1234 {
1235         if (chip->res_port != NULL) {
1236                 /* avoid access to already used hardware */
1237                 ca0106_stop_chip(chip);
1238         }
1239         if (chip->irq >= 0)
1240                 free_irq(chip->irq, chip);
1241         // release the data
1242 #if 1
1243         if (chip->buffer.area)
1244                 snd_dma_free_pages(&chip->buffer);
1245 #endif
1246 
1247         // release the i/o port
1248         release_and_free_resource(chip->res_port);
1249 
1250         pci_disable_device(chip->pci);
1251         kfree(chip);
1252         return 0;
1253 }
1254 
1255 static int snd_ca0106_dev_free(struct snd_device *device)
1256 {
1257         struct snd_ca0106 *chip = device->device_data;
1258         return snd_ca0106_free(chip);
1259 }
1260 
1261 static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
1262 {
1263         unsigned int status;
1264 
1265         struct snd_ca0106 *chip = dev_id;
1266         int i;
1267         int mask;
1268         unsigned int stat76;
1269         struct snd_ca0106_channel *pchannel;
1270 
1271         status = inl(chip->port + IPR);
1272         if (! status)
1273                 return IRQ_NONE;
1274 
1275         stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1276         /*
1277         dev_dbg(emu->card->dev, "interrupt status = 0x%08x, stat76=0x%08x\n",
1278                    status, stat76);
1279         dev_dbg(emu->card->dev, "ptr=0x%08x\n",
1280                    snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1281         */
1282         mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1283         for(i = 0; i < 4; i++) {
1284                 pchannel = &(chip->playback_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                                 /* dev_dbg(emu->card->dev, "interrupt [%d] used\n", i); */
1290                         }
1291                 }
1292                 /*
1293                 dev_dbg(emu->card->dev, "channel=%p\n", pchannel);
1294                 dev_dbg(emu->card->dev, "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1295                 */
1296                 mask <<= 1;
1297         }
1298         mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1299         for(i = 0; i < 4; i++) {
1300                 pchannel = &(chip->capture_channels[i]);
1301                 if (stat76 & mask) {
1302 /* FIXME: Select the correct substream for period elapsed */
1303                         if(pchannel->use) {
1304                                 snd_pcm_period_elapsed(pchannel->epcm->substream);
1305                                 /* dev_dbg(emu->card->dev, "interrupt [%d] used\n", i); */
1306                         }
1307                 }
1308                 /*
1309                 dev_dbg(emu->card->dev, "channel=%p\n", pchannel);
1310                 dev_dbg(emu->card->dev, "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1311                 */
1312                 mask <<= 1;
1313         }
1314 
1315         snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1316 
1317         if (chip->midi.dev_id &&
1318             (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1319                 if (chip->midi.interrupt)
1320                         chip->midi.interrupt(&chip->midi, status);
1321                 else
1322                         chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1323         }
1324 
1325         // acknowledge the interrupt if necessary
1326         outl(status, chip->port+IPR);
1327 
1328         return IRQ_HANDLED;
1329 }
1330 
1331 static const struct snd_pcm_chmap_elem surround_map[] = {
1332         { .channels = 2,
1333           .map = { SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
1334         { }
1335 };
1336 
1337 static const struct snd_pcm_chmap_elem clfe_map[] = {
1338         { .channels = 2,
1339           .map = { SNDRV_CHMAP_FC, SNDRV_CHMAP_LFE } },
1340         { }
1341 };
1342 
1343 static const struct snd_pcm_chmap_elem side_map[] = {
1344         { .channels = 2,
1345           .map = { SNDRV_CHMAP_SL, SNDRV_CHMAP_SR } },
1346         { }
1347 };
1348 
1349 static int snd_ca0106_pcm(struct snd_ca0106 *emu, int device)
1350 {
1351         struct snd_pcm *pcm;
1352         struct snd_pcm_substream *substream;
1353         const struct snd_pcm_chmap_elem *map = NULL;
1354         int err;
1355   
1356         err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm);
1357         if (err < 0)
1358                 return err;
1359   
1360         pcm->private_data = emu;
1361 
1362         switch (device) {
1363         case 0:
1364           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1365           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1366           map = snd_pcm_std_chmaps;
1367           break;
1368         case 1:
1369           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1370           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1371           map = surround_map;
1372           break;
1373         case 2:
1374           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1375           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1376           map = clfe_map;
1377           break;
1378         case 3:
1379           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1380           snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1381           map = side_map;
1382           break;
1383         }
1384 
1385         pcm->info_flags = 0;
1386         strcpy(pcm->name, "CA0106");
1387 
1388         for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; 
1389             substream; 
1390             substream = substream->next) {
1391                 snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV,
1392                                               snd_dma_pci_data(emu->pci),
1393                                               64*1024, 64*1024);
1394         }
1395 
1396         for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; 
1397               substream; 
1398               substream = substream->next) {
1399                 snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV,
1400                                               snd_dma_pci_data(emu->pci),
1401                                               64*1024, 64*1024);
1402         }
1403   
1404         err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK, map, 2,
1405                                      1 << 2, NULL);
1406         if (err < 0)
1407                 return err;
1408 
1409         emu->pcm[device] = pcm;
1410   
1411         return 0;
1412 }
1413 
1414 #define SPI_REG(reg, value)     (((reg) << SPI_REG_SHIFT) | (value))
1415 static unsigned int spi_dac_init[] = {
1416         SPI_REG(SPI_LDA1_REG,   SPI_DA_BIT_0dB), /* 0dB dig. attenuation */
1417         SPI_REG(SPI_RDA1_REG,   SPI_DA_BIT_0dB),
1418         SPI_REG(SPI_PL_REG,     SPI_PL_BIT_L_L | SPI_PL_BIT_R_R | SPI_IZD_BIT),
1419         SPI_REG(SPI_FMT_REG,    SPI_FMT_BIT_I2S | SPI_IWL_BIT_24),
1420         SPI_REG(SPI_LDA2_REG,   SPI_DA_BIT_0dB),
1421         SPI_REG(SPI_RDA2_REG,   SPI_DA_BIT_0dB),
1422         SPI_REG(SPI_LDA3_REG,   SPI_DA_BIT_0dB),
1423         SPI_REG(SPI_RDA3_REG,   SPI_DA_BIT_0dB),
1424         SPI_REG(SPI_MASTDA_REG, SPI_DA_BIT_0dB),
1425         SPI_REG(9,              0x00),
1426         SPI_REG(SPI_MS_REG,     SPI_DACD0_BIT | SPI_DACD1_BIT | SPI_DACD2_BIT),
1427         SPI_REG(12,             0x00),
1428         SPI_REG(SPI_LDA4_REG,   SPI_DA_BIT_0dB),
1429         SPI_REG(SPI_RDA4_REG,   SPI_DA_BIT_0dB | SPI_DA_BIT_UPDATE),
1430         SPI_REG(SPI_DACD4_REG,  SPI_DACD4_BIT),
1431 };
1432 
1433 static unsigned int i2c_adc_init[][2] = {
1434         { 0x17, 0x00 }, /* Reset */
1435         { 0x07, 0x00 }, /* Timeout */
1436         { 0x0b, 0x22 },  /* Interface control */
1437         { 0x0c, 0x22 },  /* Master mode control */
1438         { 0x0d, 0x08 },  /* Powerdown control */
1439         { 0x0e, 0xcf },  /* Attenuation Left  0x01 = -103dB, 0xff = 24dB */
1440         { 0x0f, 0xcf },  /* Attenuation Right 0.5dB steps */
1441         { 0x10, 0x7b },  /* ALC Control 1 */
1442         { 0x11, 0x00 },  /* ALC Control 2 */
1443         { 0x12, 0x32 },  /* ALC Control 3 */
1444         { 0x13, 0x00 },  /* Noise gate control */
1445         { 0x14, 0xa6 },  /* Limiter control */
1446         { 0x15, ADC_MUX_LINEIN },  /* ADC Mixer control */
1447 };
1448 
1449 static void ca0106_init_chip(struct snd_ca0106 *chip, int resume)
1450 {
1451         int ch;
1452         unsigned int def_bits;
1453 
1454         outl(0, chip->port + INTE);
1455 
1456         /*
1457          *  Init to 0x02109204 :
1458          *  Clock accuracy    = 0     (1000ppm)
1459          *  Sample Rate       = 2     (48kHz)
1460          *  Audio Channel     = 1     (Left of 2)
1461          *  Source Number     = 0     (Unspecified)
1462          *  Generation Status = 1     (Original for Cat Code 12)
1463          *  Cat Code          = 12    (Digital Signal Mixer)
1464          *  Mode              = 0     (Mode 0)
1465          *  Emphasis          = 0     (None)
1466          *  CP                = 1     (Copyright unasserted)
1467          *  AN                = 0     (Audio data)
1468          *  P                 = 0     (Consumer)
1469          */
1470         def_bits =
1471                 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1472                 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1473                 SPCS_GENERATIONSTATUS | 0x00001200 |
1474                 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT;
1475         if (!resume) {
1476                 chip->spdif_str_bits[0] = chip->spdif_bits[0] = def_bits;
1477                 chip->spdif_str_bits[1] = chip->spdif_bits[1] = def_bits;
1478                 chip->spdif_str_bits[2] = chip->spdif_bits[2] = def_bits;
1479                 chip->spdif_str_bits[3] = chip->spdif_bits[3] = def_bits;
1480         }
1481         /* Only SPCS1 has been tested */
1482         snd_ca0106_ptr_write(chip, SPCS1, 0, chip->spdif_str_bits[1]);
1483         snd_ca0106_ptr_write(chip, SPCS0, 0, chip->spdif_str_bits[0]);
1484         snd_ca0106_ptr_write(chip, SPCS2, 0, chip->spdif_str_bits[2]);
1485         snd_ca0106_ptr_write(chip, SPCS3, 0, chip->spdif_str_bits[3]);
1486 
1487         snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1488         snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1489 
1490         /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1491         outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
1492         outw(0x8000, chip->port + AC97DATA);
1493 #if 0 /* FIXME: what are these? */
1494         snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1495         snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1496         snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1497         snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1498 #endif
1499 
1500         /* OSS drivers set this. */
1501         /* snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); */
1502 
1503         /* Analog or Digital output */
1504         snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1505         /* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers.
1506          * Use 0x000f0000 for surround71
1507          */
1508         snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000);
1509 
1510         chip->spdif_enable = 0; /* Set digital SPDIF output off */
1511         /*snd_ca0106_ptr_write(chip, 0x45, 0, 0);*/ /* Analogue out */
1512         /*snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00);*/ /* Digital out */
1513 
1514         /* goes to 0x40c80000 when doing SPDIF IN/OUT */
1515         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000);
1516         /* (Mute) CAPTURE feedback into PLAYBACK volume.
1517          * Only lower 16 bits matter.
1518          */
1519         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff);
1520         /* SPDIF IN Volume */
1521         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000);
1522         /* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1523         snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000);
1524 
1525         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1526         snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1527         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1528         snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1529 
1530         for (ch = 0; ch < 4; ch++) {
1531                 /* Only high 16 bits matter */
1532                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030);
1533                 snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1534 #if 0 /* Mute */
1535                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040);
1536                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040);
1537                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff);
1538                 snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff);
1539 #endif
1540         }
1541         if (chip->details->i2c_adc == 1) {
1542                 /* Select MIC, Line in, TAD in, AUX in */
1543                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1544                 /* Default to CAPTURE_SOURCE to i2s in */
1545                 if (!resume)
1546                         chip->capture_source = 3;
1547         } else if (chip->details->ac97 == 1) {
1548                 /* Default to AC97 in */
1549                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x444400e4);
1550                 /* Default to CAPTURE_SOURCE to AC97 in */
1551                 if (!resume)
1552                         chip->capture_source = 4;
1553         } else {
1554                 /* Select MIC, Line in, TAD in, AUX in */
1555                 snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1556                 /* Default to Set CAPTURE_SOURCE to i2s in */
1557                 if (!resume)
1558                         chip->capture_source = 3;
1559         }
1560 
1561         if (chip->details->gpio_type == 2) {
1562                 /* The SB0438 use GPIO differently. */
1563                 /* FIXME: Still need to find out what the other GPIO bits do.
1564                  * E.g. For digital spdif out.
1565                  */
1566                 outl(0x0, chip->port+GPIO);
1567                 /* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1568                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1569         } else if (chip->details->gpio_type == 1) {
1570                 /* The SB0410 and SB0413 use GPIO differently. */
1571                 /* FIXME: Still need to find out what the other GPIO bits do.
1572                  * E.g. For digital spdif out.
1573                  */
1574                 outl(0x0, chip->port+GPIO);
1575                 /* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1576                 outl(0x005f5301, chip->port+GPIO); /* Analog */
1577         } else {
1578                 outl(0x0, chip->port+GPIO);
1579                 outl(0x005f03a3, chip->port+GPIO); /* Analog */
1580                 /* outl(0x005f02a2, chip->port+GPIO); */ /* SPDIF */
1581         }
1582         snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1583 
1584         /* outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG); */
1585         /* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1586         /* outl(0x00001409, chip->port+HCFG); */
1587         /* outl(0x00000009, chip->port+HCFG); */
1588         /* AC97 2.0, Enable outputs. */
1589         outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG);
1590 
1591         if (chip->details->i2c_adc == 1) {
1592                 /* The SB0410 and SB0413 use I2C to control ADC. */
1593                 int size, n;
1594 
1595                 size = ARRAY_SIZE(i2c_adc_init);
1596                 /* dev_dbg(emu->card->dev, "I2C:array size=0x%x\n", size); */
1597                 for (n = 0; n < size; n++)
1598                         snd_ca0106_i2c_write(chip, i2c_adc_init[n][0],
1599                                              i2c_adc_init[n][1]);
1600                 for (n = 0; n < 4; n++) {
1601                         chip->i2c_capture_volume[n][0] = 0xcf;
1602                         chip->i2c_capture_volume[n][1] = 0xcf;
1603                 }
1604                 chip->i2c_capture_source = 2; /* Line in */
1605                 /* Enable Line-in capture. MIC in currently untested. */
1606                 /* snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); */
1607         }
1608 
1609         if (chip->details->spi_dac) {
1610                 /* The SB0570 use SPI to control DAC. */
1611                 int size, n;
1612 
1613                 size = ARRAY_SIZE(spi_dac_init);
1614                 for (n = 0; n < size; n++) {
1615                         int reg = spi_dac_init[n] >> SPI_REG_SHIFT;
1616 
1617                         snd_ca0106_spi_write(chip, spi_dac_init[n]);
1618                         if (reg < ARRAY_SIZE(chip->spi_dac_reg))
1619                                 chip->spi_dac_reg[reg] = spi_dac_init[n];
1620                 }
1621 
1622                 /* Enable front dac only */
1623                 snd_ca0106_pcm_power_dac(chip, PCM_FRONT_CHANNEL, 1);
1624         }
1625 }
1626 
1627 static void ca0106_stop_chip(struct snd_ca0106 *chip)
1628 {
1629         /* disable interrupts */
1630         snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
1631         outl(0, chip->port + INTE);
1632         snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
1633         udelay(1000);
1634         /* disable audio */
1635         /* outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG); */
1636         outl(0, chip->port + HCFG);
1637         /* FIXME: We need to stop and DMA transfers here.
1638          *        But as I am not sure how yet, we cannot from the dma pages.
1639          * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
1640          */
1641 }
1642 
1643 static int snd_ca0106_create(int dev, struct snd_card *card,
1644                                          struct pci_dev *pci,
1645                                          struct snd_ca0106 **rchip)
1646 {
1647         struct snd_ca0106 *chip;
1648         struct snd_ca0106_details *c;
1649         int err;
1650         static struct snd_device_ops ops = {
1651                 .dev_free = snd_ca0106_dev_free,
1652         };
1653 
1654         *rchip = NULL;
1655 
1656         err = pci_enable_device(pci);
1657         if (err < 0)
1658                 return err;
1659         if (dma_set_mask(&pci->dev, DMA_BIT_MASK(32)) < 0 ||
1660             dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32)) < 0) {
1661                 dev_err(card->dev, "error to set 32bit mask DMA\n");
1662                 pci_disable_device(pci);
1663                 return -ENXIO;
1664         }
1665 
1666         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1667         if (chip == NULL) {
1668                 pci_disable_device(pci);
1669                 return -ENOMEM;
1670         }
1671 
1672         chip->card = card;
1673         chip->pci = pci;
1674         chip->irq = -1;
1675 
1676         spin_lock_init(&chip->emu_lock);
1677 
1678         chip->port = pci_resource_start(pci, 0);
1679         chip->res_port = request_region(chip->port, 0x20, "snd_ca0106");
1680         if (!chip->res_port) {
1681                 snd_ca0106_free(chip);
1682                 dev_err(card->dev, "cannot allocate the port\n");
1683                 return -EBUSY;
1684         }
1685 
1686         if (request_irq(pci->irq, snd_ca0106_interrupt,
1687                         IRQF_SHARED, KBUILD_MODNAME, chip)) {
1688                 snd_ca0106_free(chip);
1689                 dev_err(card->dev, "cannot grab irq\n");
1690                 return -EBUSY;
1691         }
1692         chip->irq = pci->irq;
1693 
1694         /* This stores the periods table. */
1695         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1696                                 1024, &chip->buffer) < 0) {
1697                 snd_ca0106_free(chip);
1698                 return -ENOMEM;
1699         }
1700 
1701         pci_set_master(pci);
1702         /* read serial */
1703         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1704         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1705         dev_info(card->dev, "Model %04x Rev %08x Serial %08x\n",
1706                chip->model, pci->revision, chip->serial);
1707         strcpy(card->driver, "CA0106");
1708         strcpy(card->shortname, "CA0106");
1709 
1710         for (c = ca0106_chip_details; c->serial; c++) {
1711                 if (subsystem[dev]) {
1712                         if (c->serial == subsystem[dev])
1713                                 break;
1714                 } else if (c->serial == chip->serial)
1715                         break;
1716         }
1717         chip->details = c;
1718         if (subsystem[dev]) {
1719                 dev_info(card->dev, "Sound card name=%s, "
1720                        "subsystem=0x%x. Forced to subsystem=0x%x\n",
1721                        c->name, chip->serial, subsystem[dev]);
1722         }
1723 
1724         sprintf(card->longname, "%s at 0x%lx irq %i",
1725                 c->name, chip->port, chip->irq);
1726 
1727         ca0106_init_chip(chip, 0);
1728 
1729         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1730         if (err < 0) {
1731                 snd_ca0106_free(chip);
1732                 return err;
1733         }
1734         *rchip = chip;
1735         return 0;
1736 }
1737 
1738 
1739 static void ca0106_midi_interrupt_enable(struct snd_ca_midi *midi, int intr)
1740 {
1741         snd_ca0106_intr_enable((struct snd_ca0106 *)(midi->dev_id), intr);
1742 }
1743 
1744 static void ca0106_midi_interrupt_disable(struct snd_ca_midi *midi, int intr)
1745 {
1746         snd_ca0106_intr_disable((struct snd_ca0106 *)(midi->dev_id), intr);
1747 }
1748 
1749 static unsigned char ca0106_midi_read(struct snd_ca_midi *midi, int idx)
1750 {
1751         return (unsigned char)snd_ca0106_ptr_read((struct snd_ca0106 *)(midi->dev_id),
1752                                                   midi->port + idx, 0);
1753 }
1754 
1755 static void ca0106_midi_write(struct snd_ca_midi *midi, int data, int idx)
1756 {
1757         snd_ca0106_ptr_write((struct snd_ca0106 *)(midi->dev_id), midi->port + idx, 0, data);
1758 }
1759 
1760 static struct snd_card *ca0106_dev_id_card(void *dev_id)
1761 {
1762         return ((struct snd_ca0106 *)dev_id)->card;
1763 }
1764 
1765 static int ca0106_dev_id_port(void *dev_id)
1766 {
1767         return ((struct snd_ca0106 *)dev_id)->port;
1768 }
1769 
1770 static int snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
1771 {
1772         struct snd_ca_midi *midi;
1773         char *name;
1774         int err;
1775 
1776         if (channel == CA0106_MIDI_CHAN_B) {
1777                 name = "CA0106 MPU-401 (UART) B";
1778                 midi =  &chip->midi2;
1779                 midi->tx_enable = INTE_MIDI_TX_B;
1780                 midi->rx_enable = INTE_MIDI_RX_B;
1781                 midi->ipr_tx = IPR_MIDI_TX_B;
1782                 midi->ipr_rx = IPR_MIDI_RX_B;
1783                 midi->port = MIDI_UART_B_DATA;
1784         } else {
1785                 name = "CA0106 MPU-401 (UART)";
1786                 midi =  &chip->midi;
1787                 midi->tx_enable = INTE_MIDI_TX_A;
1788                 midi->rx_enable = INTE_MIDI_TX_B;
1789                 midi->ipr_tx = IPR_MIDI_TX_A;
1790                 midi->ipr_rx = IPR_MIDI_RX_A;
1791                 midi->port = MIDI_UART_A_DATA;
1792         }
1793 
1794         midi->reset = CA0106_MPU401_RESET;
1795         midi->enter_uart = CA0106_MPU401_ENTER_UART;
1796         midi->ack = CA0106_MPU401_ACK;
1797 
1798         midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1799         midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1800 
1801         midi->channel = channel;
1802 
1803         midi->interrupt_enable = ca0106_midi_interrupt_enable;
1804         midi->interrupt_disable = ca0106_midi_interrupt_disable;
1805 
1806         midi->read = ca0106_midi_read;
1807         midi->write = ca0106_midi_write;
1808 
1809         midi->get_dev_id_card = ca0106_dev_id_card;
1810         midi->get_dev_id_port = ca0106_dev_id_port;
1811 
1812         midi->dev_id = chip;
1813         
1814         if ((err = ca_midi_init(chip, midi, 0, name)) < 0)
1815                 return err;
1816 
1817         return 0;
1818 }
1819 
1820 
1821 static int snd_ca0106_probe(struct pci_dev *pci,
1822                                         const struct pci_device_id *pci_id)
1823 {
1824         static int dev;
1825         struct snd_card *card;
1826         struct snd_ca0106 *chip;
1827         int i, err;
1828 
1829         if (dev >= SNDRV_CARDS)
1830                 return -ENODEV;
1831         if (!enable[dev]) {
1832                 dev++;
1833                 return -ENOENT;
1834         }
1835 
1836         err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1837                            0, &card);
1838         if (err < 0)
1839                 return err;
1840 
1841         err = snd_ca0106_create(dev, card, pci, &chip);
1842         if (err < 0)
1843                 goto error;
1844         card->private_data = chip;
1845 
1846         for (i = 0; i < 4; i++) {
1847                 err = snd_ca0106_pcm(chip, i);
1848                 if (err < 0)
1849                         goto error;
1850         }
1851 
1852         if (chip->details->ac97 == 1) {
1853                 /* The SB0410 and SB0413 do not have an AC97 chip. */
1854                 err = snd_ca0106_ac97(chip);
1855                 if (err < 0)
1856                         goto error;
1857         }
1858         err = snd_ca0106_mixer(chip);
1859         if (err < 0)
1860                 goto error;
1861 
1862         dev_dbg(card->dev, "probe for MIDI channel A ...");
1863         err = snd_ca0106_midi(chip, CA0106_MIDI_CHAN_A);
1864         if (err < 0)
1865                 goto error;
1866         dev_dbg(card->dev, " done.\n");
1867 
1868 #ifdef CONFIG_SND_PROC_FS
1869         snd_ca0106_proc_init(chip);
1870 #endif
1871 
1872         err = snd_card_register(card);
1873         if (err < 0)
1874                 goto error;
1875 
1876         pci_set_drvdata(pci, card);
1877         dev++;
1878         return 0;
1879 
1880  error:
1881         snd_card_free(card);
1882         return err;
1883 }
1884 
1885 static void snd_ca0106_remove(struct pci_dev *pci)
1886 {
1887         snd_card_free(pci_get_drvdata(pci));
1888 }
1889 
1890 #ifdef CONFIG_PM_SLEEP
1891 static int snd_ca0106_suspend(struct device *dev)
1892 {
1893         struct snd_card *card = dev_get_drvdata(dev);
1894         struct snd_ca0106 *chip = card->private_data;
1895 
1896         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1897         if (chip->details->ac97)
1898                 snd_ac97_suspend(chip->ac97);
1899         snd_ca0106_mixer_suspend(chip);
1900 
1901         ca0106_stop_chip(chip);
1902         return 0;
1903 }
1904 
1905 static int snd_ca0106_resume(struct device *dev)
1906 {
1907         struct snd_card *card = dev_get_drvdata(dev);
1908         struct snd_ca0106 *chip = card->private_data;
1909         int i;
1910 
1911         ca0106_init_chip(chip, 1);
1912 
1913         if (chip->details->ac97)
1914                 snd_ac97_resume(chip->ac97);
1915         snd_ca0106_mixer_resume(chip);
1916         if (chip->details->spi_dac) {
1917                 for (i = 0; i < ARRAY_SIZE(chip->spi_dac_reg); i++)
1918                         snd_ca0106_spi_write(chip, chip->spi_dac_reg[i]);
1919         }
1920 
1921         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1922         return 0;
1923 }
1924 
1925 static SIMPLE_DEV_PM_OPS(snd_ca0106_pm, snd_ca0106_suspend, snd_ca0106_resume);
1926 #define SND_CA0106_PM_OPS       &snd_ca0106_pm
1927 #else
1928 #define SND_CA0106_PM_OPS       NULL
1929 #endif
1930 
1931 // PCI IDs
1932 static const struct pci_device_id snd_ca0106_ids[] = {
1933         { PCI_VDEVICE(CREATIVE, 0x0007), 0 },   /* Audigy LS or Live 24bit */
1934         { 0, }
1935 };
1936 MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1937 
1938 // pci_driver definition
1939 static struct pci_driver ca0106_driver = {
1940         .name = KBUILD_MODNAME,
1941         .id_table = snd_ca0106_ids,
1942         .probe = snd_ca0106_probe,
1943         .remove = snd_ca0106_remove,
1944         .driver = {
1945                 .pm = SND_CA0106_PM_OPS,
1946         },
1947 };
1948 
1949 module_pci_driver(ca0106_driver);
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root/sound/pci/ca0106/ca0106_main.c

DEFINITIONS
