sound/pci/emu10k1/emu10k1x.c

   1 /*
   2  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
   3  *  Driver EMU10K1X chips
   4  *
   5  *  Parts of this code were adapted from audigyls.c driver which is
   6  *  Copyright (c) by James Courtier-Dutton <James@superbug.demon.co.uk>
   7  *
   8  *  BUGS:
   9  *    --
  10  *
  11  *  TODO:
  12  *
  13  *  Chips (SB0200 model):
  14  *    - EMU10K1X-DBQ
  15  *    - STAC 9708T
  16  *
  17  *   This program is free software; you can redistribute it and/or modify
  18  *   it under the terms of the GNU General Public License as published by
  19  *   the Free Software Foundation; either version 2 of the License, or
  20  *   (at your option) any later version.
  21  *
  22  *   This program is distributed in the hope that it will be useful,
  23  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  24  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25  *   GNU General Public License for more details.
  26  *
  27  *   You should have received a copy of the GNU General Public License
  28  *   along with this program; if not, write to the Free Software
  29  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  30  *
  31  */
  32 #include <sound/driver.h>
  33 #include <linux/init.h>
  34 #include <linux/interrupt.h>
  35 #include <linux/pci.h>
  36 #include <linux/slab.h>
  37 #include <linux/moduleparam.h>
  38 #include <sound/core.h>
  39 #include <sound/initval.h>
  40 #include <sound/pcm.h>
  41 #include <sound/ac97_codec.h>
  42 #include <sound/info.h>
  43 #include <sound/rawmidi.h>
  44
  45 MODULE_AUTHOR("Francisco Moraes <fmoraes@nc.rr.com>");
  46 MODULE_DESCRIPTION("EMU10K1X");
  47 MODULE_LICENSE("GPL");
  48 MODULE_SUPPORTED_DEVICE("{{Dell Creative Labs,SB Live!}");
  49
  50 // module parameters (see "Module Parameters")
  51 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
  52 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
  53 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
  54
  55 module_param_array(index, int, NULL, 0444);
  56 MODULE_PARM_DESC(index, "Index value for the EMU10K1X soundcard.");
  57 module_param_array(id, charp, NULL, 0444);
  58 MODULE_PARM_DESC(id, "ID string for the EMU10K1X soundcard.");
  59 module_param_array(enable, bool, NULL, 0444);
  60 MODULE_PARM_DESC(enable, "Enable the EMU10K1X soundcard.");
  61
  62
  63 // some definitions were borrowed from emu10k1 driver as they seem to be the same
  64 /************************************************************************************************/
  65 /* PCI function 0 registers, address = <val> + PCIBASE0                                         */
  66 /************************************************************************************************/
  67
  68 #define PTR                     0x00            /* Indexed register set pointer register        */
  69                                                 /* NOTE: The CHANNELNUM and ADDRESS words can   */
  70                                                 /* be modified independently of each other.     */
  71
  72 #define DATA                    0x04            /* Indexed register set data register           */
  73
  74 #define IPR                     0x08            /* Global interrupt pending register            */
  75                                                 /* Clear pending interrupts by writing a 1 to   */
  76                                                 /* the relevant bits and zero to the other bits */
  77 #define IPR_MIDITRANSBUFEMPTY   0x00000001      /* MIDI UART transmit buffer empty              */
  78 #define IPR_MIDIRECVBUFEMPTY    0x00000002      /* MIDI UART receive buffer empty               */
  79 #define IPR_CH_0_LOOP           0x00000800      /* Channel 0 loop                               */
  80 #define IPR_CH_0_HALF_LOOP      0x00000100      /* Channel 0 half loop                          */
  81 #define IPR_CAP_0_LOOP          0x00080000      /* Channel capture loop                         */
  82 #define IPR_CAP_0_HALF_LOOP     0x00010000      /* Channel capture half loop                    */
  83
  84 #define INTE                    0x0c            /* Interrupt enable register                    */
  85 #define INTE_MIDITXENABLE       0x00000001      /* Enable MIDI transmit-buffer-empty interrupts */
  86 #define INTE_MIDIRXENABLE       0x00000002      /* Enable MIDI receive-buffer-empty interrupts  */
  87 #define INTE_CH_0_LOOP          0x00000800      /* Channel 0 loop                               */
  88 #define INTE_CH_0_HALF_LOOP     0x00000100      /* Channel 0 half loop                          */
  89 #define INTE_CAP_0_LOOP         0x00080000      /* Channel capture loop                         */
  90 #define INTE_CAP_0_HALF_LOOP    0x00010000      /* Channel capture half loop                    */
  91
  92 #define HCFG                    0x14            /* Hardware config register                     */
  93
  94 #define HCFG_LOCKSOUNDCACHE     0x00000008      /* 1 = Cancel bustmaster accesses to soundcache */
  95                                                 /* NOTE: This should generally never be used.   */
  96 #define HCFG_AUDIOENABLE        0x00000001      /* 0 = CODECs transmit zero-valued samples      */
  97                                                 /* Should be set to 1 when the EMU10K1 is       */
  98                                                 /* completely initialized.                      */
  99 #define GPIO                    0x18            /* Defaults: 00001080-Analog, 00001000-SPDIF.   */
 100
 101
 102 #define AC97DATA                0x1c            /* AC97 register set data register (16 bit)     */
 103
 104 #define AC97ADDRESS             0x1e            /* AC97 register set address register (8 bit)   */
 105
 106 /********************************************************************************************************/
 107 /* Emu10k1x pointer-offset register set, accessed through the PTR and DATA registers                    */
 108 /********************************************************************************************************/
 109 #define PLAYBACK_LIST_ADDR      0x00            /* Base DMA address of a list of pointers to each period/size */
 110                                                 /* One list entry: 4 bytes for DMA address,
 111                                                  * 4 bytes for period_size << 16.
 112                                                  * One list entry is 8 bytes long.
 113                                                  * One list entry for each period in the buffer.
 114                                                  */
 115 #define PLAYBACK_LIST_SIZE      0x01            /* Size of list in bytes << 16. E.g. 8 periods -> 0x00380000  */
 116 #define PLAYBACK_LIST_PTR       0x02            /* Pointer to the current period being played */
 117 #define PLAYBACK_DMA_ADDR       0x04            /* Playback DMA addresss */
 118 #define PLAYBACK_PERIOD_SIZE    0x05            /* Playback period size */
 119 #define PLAYBACK_POINTER        0x06            /* Playback period pointer. Sample currently in DAC */
 120 #define PLAYBACK_UNKNOWN1       0x07
 121 #define PLAYBACK_UNKNOWN2       0x08
 122
 123 /* Only one capture channel supported */
 124 #define CAPTURE_DMA_ADDR        0x10            /* Capture DMA address */
 125 #define CAPTURE_BUFFER_SIZE     0x11            /* Capture buffer size */
 126 #define CAPTURE_POINTER         0x12            /* Capture buffer pointer. Sample currently in ADC */
 127 #define CAPTURE_UNKNOWN         0x13
 128
 129 /* From 0x20 - 0x3f, last samples played on each channel */
 130
 131 #define TRIGGER_CHANNEL         0x40            /* Trigger channel playback                     */
 132 #define TRIGGER_CHANNEL_0       0x00000001      /* Trigger channel 0                            */
 133 #define TRIGGER_CHANNEL_1       0x00000002      /* Trigger channel 1                            */
 134 #define TRIGGER_CHANNEL_2       0x00000004      /* Trigger channel 2                            */
 135 #define TRIGGER_CAPTURE         0x00000100      /* Trigger capture channel                      */
 136
 137 #define ROUTING                 0x41            /* Setup sound routing ?                        */
 138 #define ROUTING_FRONT_LEFT      0x00000001
 139 #define ROUTING_FRONT_RIGHT     0x00000002
 140 #define ROUTING_REAR_LEFT       0x00000004
 141 #define ROUTING_REAR_RIGHT      0x00000008
 142 #define ROUTING_CENTER_LFE      0x00010000
 143
 144 #define SPCS0                   0x42            /* SPDIF output Channel Status 0 register       */
 145
 146 #define SPCS1                   0x43            /* SPDIF output Channel Status 1 register       */
 147
 148 #define SPCS2                   0x44            /* SPDIF output Channel Status 2 register       */
 149
 150 #define SPCS_CLKACCYMASK        0x30000000      /* Clock accuracy                               */
 151 #define SPCS_CLKACCY_1000PPM    0x00000000      /* 1000 parts per million                       */
 152 #define SPCS_CLKACCY_50PPM      0x10000000      /* 50 parts per million                         */
 153 #define SPCS_CLKACCY_VARIABLE   0x20000000      /* Variable accuracy                            */
 154 #define SPCS_SAMPLERATEMASK     0x0f000000      /* Sample rate                                  */
 155 #define SPCS_SAMPLERATE_44      0x00000000      /* 44.1kHz sample rate                          */
 156 #define SPCS_SAMPLERATE_48      0x02000000      /* 48kHz sample rate                            */
 157 #define SPCS_SAMPLERATE_32      0x03000000      /* 32kHz sample rate                            */
 158 #define SPCS_CHANNELNUMMASK     0x00f00000      /* Channel number                               */
 159 #define SPCS_CHANNELNUM_UNSPEC  0x00000000      /* Unspecified channel number                   */
 160 #define SPCS_CHANNELNUM_LEFT    0x00100000      /* Left channel                                 */
 161 #define SPCS_CHANNELNUM_RIGHT   0x00200000      /* Right channel                                */
 162 #define SPCS_SOURCENUMMASK      0x000f0000      /* Source number                                */
 163 #define SPCS_SOURCENUM_UNSPEC   0x00000000      /* Unspecified source number                    */
 164 #define SPCS_GENERATIONSTATUS   0x00008000      /* Originality flag (see IEC-958 spec)          */
 165 #define SPCS_CATEGORYCODEMASK   0x00007f00      /* Category code (see IEC-958 spec)             */
 166 #define SPCS_MODEMASK           0x000000c0      /* Mode (see IEC-958 spec)                      */
 167 #define SPCS_EMPHASISMASK       0x00000038      /* Emphasis                                     */
 168 #define SPCS_EMPHASIS_NONE      0x00000000      /* No emphasis                                  */
 169 #define SPCS_EMPHASIS_50_15     0x00000008      /* 50/15 usec 2 channel                         */
 170 #define SPCS_COPYRIGHT          0x00000004      /* Copyright asserted flag -- do not modify     */
 171 #define SPCS_NOTAUDIODATA       0x00000002      /* 0 = Digital audio, 1 = not audio             */
 172 #define SPCS_PROFESSIONAL       0x00000001      /* 0 = Consumer (IEC-958), 1 = pro (AES3-1992)  */
 173
 174 #define SPDIF_SELECT            0x45            /* Enables SPDIF or Analogue outputs 0-Analogue, 0x700-SPDIF */
 175
 176 /* This is the MPU port on the card                                                             */
 177 #define MUDATA          0x47
 178 #define MUCMD           0x48
 179 #define MUSTAT          MUCMD
 180
 181 /* From 0x50 - 0x5f, last samples captured */
 182
 183 /**
 184  * The hardware has 3 channels for playback and 1 for capture.
 185  *  - channel 0 is the front channel
 186  *  - channel 1 is the rear channel
 187  *  - channel 2 is the center/lfe chanel
 188  * Volume is controlled by the AC97 for the front and rear channels by
 189  * the PCM Playback Volume, Sigmatel Surround Playback Volume and
 190  * Surround Playback Volume. The Sigmatel 4-Speaker Stereo switch affects
 191  * the front/rear channel mixing in the REAR OUT jack. When using the
 192  * 4-Speaker Stereo, both front and rear channels will be mixed in the
 193  * REAR OUT.
 194  * The center/lfe channel has no volume control and cannot be muted during
 195  * playback.
 196  */
 197
 198 typedef struct snd_emu10k1x_voice emu10k1x_voice_t;
 199 typedef struct snd_emu10k1x emu10k1x_t;
 200 typedef struct snd_emu10k1x_pcm emu10k1x_pcm_t;
 201
 202 struct snd_emu10k1x_voice {
 203         emu10k1x_t *emu;
 204         int number;
 205         int use;
 206
 207         emu10k1x_pcm_t *epcm;
 208 };
 209
 210 struct snd_emu10k1x_pcm {
 211         emu10k1x_t *emu;
 212         snd_pcm_substream_t *substream;
 213         emu10k1x_voice_t *voice;
 214         unsigned short running;
 215 };
 216
 217 typedef struct {
 218         struct snd_emu10k1x *emu;
 219         snd_rawmidi_t *rmidi;
 220         snd_rawmidi_substream_t *substream_input;
 221         snd_rawmidi_substream_t *substream_output;
 222         unsigned int midi_mode;
 223         spinlock_t input_lock;
 224         spinlock_t output_lock;
 225         spinlock_t open_lock;
 226         int tx_enable, rx_enable;
 227         int port;
 228         int ipr_tx, ipr_rx;
 229         void (*interrupt)(emu10k1x_t *emu, unsigned int status);
 230 } emu10k1x_midi_t;
 231
 232 // definition of the chip-specific record
 233 struct snd_emu10k1x {
 234         snd_card_t *card;
 235         struct pci_dev *pci;
 236
 237         unsigned long port;
 238         struct resource *res_port;
 239         int irq;
 240
 241         unsigned int revision;          /* chip revision */
 242         unsigned int serial;            /* serial number */
 243         unsigned short model;           /* subsystem id */
 244
 245         spinlock_t emu_lock;
 246         spinlock_t voice_lock;
 247
 248         ac97_t *ac97;
 249         snd_pcm_t *pcm;
 250
 251         emu10k1x_voice_t voices[3];
 252         emu10k1x_voice_t capture_voice;
 253         u32 spdif_bits[3]; // SPDIF out setup
 254
 255         struct snd_dma_buffer dma_buffer;
 256
 257         emu10k1x_midi_t midi;
 258 };
 259
 260 /* hardware definition */
 261 static snd_pcm_hardware_t snd_emu10k1x_playback_hw = {
 262         .info =                 (SNDRV_PCM_INFO_MMAP |
 263                                  SNDRV_PCM_INFO_INTERLEAVED |
 264                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 265                                  SNDRV_PCM_INFO_MMAP_VALID),
 266         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
 267         .rates =                SNDRV_PCM_RATE_48000,
 268         .rate_min =             48000,
 269         .rate_max =             48000,
 270         .channels_min =         2,
 271         .channels_max =         2,
 272         .buffer_bytes_max =     (32*1024),
 273         .period_bytes_min =     64,
 274         .period_bytes_max =     (16*1024),
 275         .periods_min =          2,
 276         .periods_max =          8,
 277         .fifo_size =            0,
 278 };
 279
 280 static snd_pcm_hardware_t snd_emu10k1x_capture_hw = {
 281         .info =                 (SNDRV_PCM_INFO_MMAP |
 282                                  SNDRV_PCM_INFO_INTERLEAVED |
 283                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 284                                  SNDRV_PCM_INFO_MMAP_VALID),
 285         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
 286         .rates =                SNDRV_PCM_RATE_48000,
 287         .rate_min =             48000,
 288         .rate_max =             48000,
 289         .channels_min =         2,
 290         .channels_max =         2,
 291         .buffer_bytes_max =     (32*1024),
 292         .period_bytes_min =     64,
 293         .period_bytes_max =     (16*1024),
 294         .periods_min =          2,
 295         .periods_max =          2,
 296         .fifo_size =            0,
 297 };
 298
 299 static unsigned int snd_emu10k1x_ptr_read(emu10k1x_t * emu,
 300                                           unsigned int reg,
 301                                           unsigned int chn)
 302 {
 303         unsigned long flags;
 304         unsigned int regptr, val;
 305
 306         regptr = (reg << 16) | chn;
 307
 308         spin_lock_irqsave(&emu->emu_lock, flags);
 309         outl(regptr, emu->port + PTR);
 310         val = inl(emu->port + DATA);
 311         spin_unlock_irqrestore(&emu->emu_lock, flags);
 312         return val;
 313 }
 314
 315 static void snd_emu10k1x_ptr_write(emu10k1x_t *emu,
 316                                    unsigned int reg,
 317                                    unsigned int chn,
 318                                    unsigned int data)
 319 {
 320         unsigned int regptr;
 321         unsigned long flags;
 322
 323         regptr = (reg << 16) | chn;
 324
 325         spin_lock_irqsave(&emu->emu_lock, flags);
 326         outl(regptr, emu->port + PTR);
 327         outl(data, emu->port + DATA);
 328         spin_unlock_irqrestore(&emu->emu_lock, flags);
 329 }
 330
 331 static void snd_emu10k1x_intr_enable(emu10k1x_t *emu, unsigned int intrenb)
 332 {
 333         unsigned long flags;
 334         unsigned int enable;
 335
 336         spin_lock_irqsave(&emu->emu_lock, flags);
 337         enable = inl(emu->port + INTE) | intrenb;
 338         outl(enable, emu->port + INTE);
 339         spin_unlock_irqrestore(&emu->emu_lock, flags);
 340 }
 341
 342 static void snd_emu10k1x_intr_disable(emu10k1x_t *emu, unsigned int intrenb)
 343 {
 344         unsigned long flags;
 345         unsigned int enable;
 346
 347         spin_lock_irqsave(&emu->emu_lock, flags);
 348         enable = inl(emu->port + INTE) & ~intrenb;
 349         outl(enable, emu->port + INTE);
 350         spin_unlock_irqrestore(&emu->emu_lock, flags);
 351 }
 352
 353 static void snd_emu10k1x_gpio_write(emu10k1x_t *emu, unsigned int value)
 354 {
 355         unsigned long flags;
 356
 357         spin_lock_irqsave(&emu->emu_lock, flags);
 358         outl(value, emu->port + GPIO);
 359         spin_unlock_irqrestore(&emu->emu_lock, flags);
 360 }
 361
 362 static void snd_emu10k1x_pcm_free_substream(snd_pcm_runtime_t *runtime)
 363 {
 364         kfree(runtime->private_data);
 365 }
 366
 367 static void snd_emu10k1x_pcm_interrupt(emu10k1x_t *emu, emu10k1x_voice_t *voice)
 368 {
 369         emu10k1x_pcm_t *epcm;
 370
 371         if ((epcm = voice->epcm) == NULL)
 372                 return;
 373         if (epcm->substream == NULL)
 374                 return;
 375 #if 0
 376         snd_printk(KERN_INFO "IRQ: position = 0x%x, period = 0x%x, size = 0x%x\n",
 377                    epcm->substream->ops->pointer(epcm->substream),
 378                    snd_pcm_lib_period_bytes(epcm->substream),
 379                    snd_pcm_lib_buffer_bytes(epcm->substream));
 380 #endif
 381         snd_pcm_period_elapsed(epcm->substream);
 382 }
 383
 384 /* open callback */
 385 static int snd_emu10k1x_playback_open(snd_pcm_substream_t *substream)
 386 {
 387         emu10k1x_t *chip = snd_pcm_substream_chip(substream);
 388         emu10k1x_pcm_t *epcm;
 389         snd_pcm_runtime_t *runtime = substream->runtime;
 390         int err;
 391
 392         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) {
 393                 return err;
 394         }
 395         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 396                 return err;
 397
 398         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 399         if (epcm == NULL)
 400                 return -ENOMEM;
 401         epcm->emu = chip;
 402         epcm->substream = substream;
 403
 404         runtime->private_data = epcm;
 405         runtime->private_free = snd_emu10k1x_pcm_free_substream;
 406
 407         runtime->hw = snd_emu10k1x_playback_hw;
 408
 409         return 0;
 410 }
 411
 412 /* close callback */
 413 static int snd_emu10k1x_playback_close(snd_pcm_substream_t *substream)
 414 {
 415         return 0;
 416 }
 417
 418 /* hw_params callback */
 419 static int snd_emu10k1x_pcm_hw_params(snd_pcm_substream_t *substream,
 420                                       snd_pcm_hw_params_t * hw_params)
 421 {
 422         snd_pcm_runtime_t *runtime = substream->runtime;
 423         emu10k1x_pcm_t *epcm = runtime->private_data;
 424
 425         if (! epcm->voice) {
 426                 epcm->voice = &epcm->emu->voices[substream->pcm->device];
 427                 epcm->voice->use = 1;
 428                 epcm->voice->epcm = epcm;
 429         }
 430
 431         return snd_pcm_lib_malloc_pages(substream,
 432                                         params_buffer_bytes(hw_params));
 433 }
 434
 435 /* hw_free callback */
 436 static int snd_emu10k1x_pcm_hw_free(snd_pcm_substream_t *substream)
 437 {
 438         snd_pcm_runtime_t *runtime = substream->runtime;
 439         emu10k1x_pcm_t *epcm;
 440
 441         if (runtime->private_data == NULL)
 442                 return 0;
 443
 444         epcm = runtime->private_data;
 445
 446         if (epcm->voice) {
 447                 epcm->voice->use = 0;
 448                 epcm->voice->epcm = NULL;
 449                 epcm->voice = NULL;
 450         }
 451
 452         return snd_pcm_lib_free_pages(substream);
 453 }
 454
 455 /* prepare callback */
 456 static int snd_emu10k1x_pcm_prepare(snd_pcm_substream_t *substream)
 457 {
 458         emu10k1x_t *emu = snd_pcm_substream_chip(substream);
 459         snd_pcm_runtime_t *runtime = substream->runtime;
 460         emu10k1x_pcm_t *epcm = runtime->private_data;
 461         int voice = epcm->voice->number;
 462         u32 *table_base = (u32 *)(emu->dma_buffer.area+1024*voice);
 463         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
 464         int i;
 465
 466         for(i=0; i < runtime->periods; i++) {
 467                 *table_base++=runtime->dma_addr+(i*period_size_bytes);
 468                 *table_base++=period_size_bytes<<16;
 469         }
 470
 471         snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_ADDR, voice, emu->dma_buffer.addr+1024*voice);
 472         snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_SIZE, voice, (runtime->periods - 1) << 19);
 473         snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_PTR, voice, 0);
 474         snd_emu10k1x_ptr_write(emu, PLAYBACK_POINTER, voice, 0);
 475         snd_emu10k1x_ptr_write(emu, PLAYBACK_UNKNOWN1, voice, 0);
 476         snd_emu10k1x_ptr_write(emu, PLAYBACK_UNKNOWN2, voice, 0);
 477         snd_emu10k1x_ptr_write(emu, PLAYBACK_DMA_ADDR, voice, runtime->dma_addr);
 478
 479         snd_emu10k1x_ptr_write(emu, PLAYBACK_PERIOD_SIZE, voice, frames_to_bytes(runtime, runtime->period_size)<<16);
 480
 481         return 0;
 482 }
 483
 484 /* trigger callback */
 485 static int snd_emu10k1x_pcm_trigger(snd_pcm_substream_t *substream,
 486                                     int cmd)
 487 {
 488         emu10k1x_t *emu = snd_pcm_substream_chip(substream);
 489         snd_pcm_runtime_t *runtime = substream->runtime;
 490         emu10k1x_pcm_t *epcm = runtime->private_data;
 491         int channel = epcm->voice->number;
 492         int result = 0;
 493
 494 //      snd_printk(KERN_INFO "trigger - emu10k1x = 0x%x, cmd = %i, pointer = %d\n", (int)emu, cmd, (int)substream->ops->pointer(substream));
 495
 496         switch (cmd) {
 497         case SNDRV_PCM_TRIGGER_START:
 498                 if(runtime->periods == 2)
 499                         snd_emu10k1x_intr_enable(emu, (INTE_CH_0_LOOP | INTE_CH_0_HALF_LOOP) << channel);
 500                 else
 501                         snd_emu10k1x_intr_enable(emu, INTE_CH_0_LOOP << channel);
 502                 epcm->running = 1;
 503                 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0)|(TRIGGER_CHANNEL_0<<channel));
 504                 break;
 505         case SNDRV_PCM_TRIGGER_STOP:
 506                 epcm->running = 0;
 507                 snd_emu10k1x_intr_disable(emu, (INTE_CH_0_LOOP | INTE_CH_0_HALF_LOOP) << channel);
 508                 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0) & ~(TRIGGER_CHANNEL_0<<channel));
 509                 break;
 510         default:
 511                 result = -EINVAL;
 512                 break;
 513         }
 514         return result;
 515 }
 516
 517 /* pointer callback */
 518 static snd_pcm_uframes_t
 519 snd_emu10k1x_pcm_pointer(snd_pcm_substream_t *substream)
 520 {
 521         emu10k1x_t *emu = snd_pcm_substream_chip(substream);
 522         snd_pcm_runtime_t *runtime = substream->runtime;
 523         emu10k1x_pcm_t *epcm = runtime->private_data;
 524         int channel = epcm->voice->number;
 525         snd_pcm_uframes_t ptr = 0, ptr1 = 0, ptr2= 0,ptr3 = 0,ptr4 = 0;
 526
 527         if (!epcm->running)
 528                 return 0;
 529
 530         ptr3 = snd_emu10k1x_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
 531         ptr1 = snd_emu10k1x_ptr_read(emu, PLAYBACK_POINTER, channel);
 532         ptr4 = snd_emu10k1x_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
 533
 534         if(ptr4 == 0 && ptr1 == frames_to_bytes(runtime, runtime->buffer_size))
 535                 return 0;
 536
 537         if (ptr3 != ptr4)
 538                 ptr1 = snd_emu10k1x_ptr_read(emu, PLAYBACK_POINTER, channel);
 539         ptr2 = bytes_to_frames(runtime, ptr1);
 540         ptr2 += (ptr4 >> 3) * runtime->period_size;
 541         ptr = ptr2;
 542
 543         if (ptr >= runtime->buffer_size)
 544                 ptr -= runtime->buffer_size;
 545
 546         return ptr;
 547 }
 548
 549 /* operators */
 550 static snd_pcm_ops_t snd_emu10k1x_playback_ops = {
 551         .open =        snd_emu10k1x_playback_open,
 552         .close =       snd_emu10k1x_playback_close,
 553         .ioctl =       snd_pcm_lib_ioctl,
 554         .hw_params =   snd_emu10k1x_pcm_hw_params,
 555         .hw_free =     snd_emu10k1x_pcm_hw_free,
 556         .prepare =     snd_emu10k1x_pcm_prepare,
 557         .trigger =     snd_emu10k1x_pcm_trigger,
 558         .pointer =     snd_emu10k1x_pcm_pointer,
 559 };
 560
 561 /* open_capture callback */
 562 static int snd_emu10k1x_pcm_open_capture(snd_pcm_substream_t *substream)
 563 {
 564         emu10k1x_t *chip = snd_pcm_substream_chip(substream);
 565         emu10k1x_pcm_t *epcm;
 566         snd_pcm_runtime_t *runtime = substream->runtime;
 567         int err;
 568
 569         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 570                 return err;
 571         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 572                 return err;
 573
 574         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 575         if (epcm == NULL)
 576                 return -ENOMEM;
 577
 578         epcm->emu = chip;
 579         epcm->substream = substream;
 580
 581         runtime->private_data = epcm;
 582         runtime->private_free = snd_emu10k1x_pcm_free_substream;
 583
 584         runtime->hw = snd_emu10k1x_capture_hw;
 585
 586         return 0;
 587 }
 588
 589 /* close callback */
 590 static int snd_emu10k1x_pcm_close_capture(snd_pcm_substream_t *substream)
 591 {
 592         return 0;
 593 }
 594
 595 /* hw_params callback */
 596 static int snd_emu10k1x_pcm_hw_params_capture(snd_pcm_substream_t *substream,
 597                                               snd_pcm_hw_params_t * hw_params)
 598 {
 599         snd_pcm_runtime_t *runtime = substream->runtime;
 600         emu10k1x_pcm_t *epcm = runtime->private_data;
 601
 602         if (! epcm->voice) {
 603                 if (epcm->emu->capture_voice.use)
 604                         return -EBUSY;
 605                 epcm->voice = &epcm->emu->capture_voice;
 606                 epcm->voice->epcm = epcm;
 607                 epcm->voice->use = 1;
 608         }
 609
 610         return snd_pcm_lib_malloc_pages(substream,
 611                                         params_buffer_bytes(hw_params));
 612 }
 613
 614 /* hw_free callback */
 615 static int snd_emu10k1x_pcm_hw_free_capture(snd_pcm_substream_t *substream)
 616 {
 617         snd_pcm_runtime_t *runtime = substream->runtime;
 618
 619         emu10k1x_pcm_t *epcm;
 620
 621         if (runtime->private_data == NULL)
 622                 return 0;
 623         epcm = runtime->private_data;
 624
 625         if (epcm->voice) {
 626                 epcm->voice->use = 0;
 627                 epcm->voice->epcm = NULL;
 628                 epcm->voice = NULL;
 629         }
 630
 631         return snd_pcm_lib_free_pages(substream);
 632 }
 633
 634 /* prepare capture callback */
 635 static int snd_emu10k1x_pcm_prepare_capture(snd_pcm_substream_t *substream)
 636 {
 637         emu10k1x_t *emu = snd_pcm_substream_chip(substream);
 638         snd_pcm_runtime_t *runtime = substream->runtime;
 639
 640         snd_emu10k1x_ptr_write(emu, CAPTURE_DMA_ADDR, 0, runtime->dma_addr);
 641         snd_emu10k1x_ptr_write(emu, CAPTURE_BUFFER_SIZE, 0, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
 642         snd_emu10k1x_ptr_write(emu, CAPTURE_POINTER, 0, 0);
 643         snd_emu10k1x_ptr_write(emu, CAPTURE_UNKNOWN, 0, 0);
 644
 645         return 0;
 646 }
 647
 648 /* trigger_capture callback */
 649 static int snd_emu10k1x_pcm_trigger_capture(snd_pcm_substream_t *substream,
 650                                             int cmd)
 651 {
 652         emu10k1x_t *emu = snd_pcm_substream_chip(substream);
 653         snd_pcm_runtime_t *runtime = substream->runtime;
 654         emu10k1x_pcm_t *epcm = runtime->private_data;
 655         int result = 0;
 656
 657         switch (cmd) {
 658         case SNDRV_PCM_TRIGGER_START:
 659                 snd_emu10k1x_intr_enable(emu, INTE_CAP_0_LOOP |
 660                                          INTE_CAP_0_HALF_LOOP);
 661                 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0)|TRIGGER_CAPTURE);
 662                 epcm->running = 1;
 663                 break;
 664         case SNDRV_PCM_TRIGGER_STOP:
 665                 epcm->running = 0;
 666                 snd_emu10k1x_intr_disable(emu, INTE_CAP_0_LOOP |
 667                                           INTE_CAP_0_HALF_LOOP);
 668                 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0) & ~(TRIGGER_CAPTURE));
 669                 break;
 670         default:
 671                 result = -EINVAL;
 672                 break;
 673         }
 674         return result;
 675 }
 676
 677 /* pointer_capture callback */
 678 static snd_pcm_uframes_t
 679 snd_emu10k1x_pcm_pointer_capture(snd_pcm_substream_t *substream)
 680 {
 681         emu10k1x_t *emu = snd_pcm_substream_chip(substream);
 682         snd_pcm_runtime_t *runtime = substream->runtime;
 683         emu10k1x_pcm_t *epcm = runtime->private_data;
 684         snd_pcm_uframes_t ptr;
 685
 686         if (!epcm->running)
 687                 return 0;
 688
 689         ptr = bytes_to_frames(runtime, snd_emu10k1x_ptr_read(emu, CAPTURE_POINTER, 0));
 690         if (ptr >= runtime->buffer_size)
 691                 ptr -= runtime->buffer_size;
 692
 693         return ptr;
 694 }
 695
 696 static snd_pcm_ops_t snd_emu10k1x_capture_ops = {
 697         .open =        snd_emu10k1x_pcm_open_capture,
 698         .close =       snd_emu10k1x_pcm_close_capture,
 699         .ioctl =       snd_pcm_lib_ioctl,
 700         .hw_params =   snd_emu10k1x_pcm_hw_params_capture,
 701         .hw_free =     snd_emu10k1x_pcm_hw_free_capture,
 702         .prepare =     snd_emu10k1x_pcm_prepare_capture,
 703         .trigger =     snd_emu10k1x_pcm_trigger_capture,
 704         .pointer =     snd_emu10k1x_pcm_pointer_capture,
 705 };
 706
 707 static unsigned short snd_emu10k1x_ac97_read(ac97_t *ac97,
 708                                              unsigned short reg)
 709 {
 710         emu10k1x_t *emu = ac97->private_data;
 711         unsigned long flags;
 712         unsigned short val;
 713
 714         spin_lock_irqsave(&emu->emu_lock, flags);
 715         outb(reg, emu->port + AC97ADDRESS);
 716         val = inw(emu->port + AC97DATA);
 717         spin_unlock_irqrestore(&emu->emu_lock, flags);
 718         return val;
 719 }
 720
 721 static void snd_emu10k1x_ac97_write(ac97_t *ac97,
 722                                     unsigned short reg, unsigned short val)
 723 {
 724         emu10k1x_t *emu = ac97->private_data;
 725         unsigned long flags;
 726
 727         spin_lock_irqsave(&emu->emu_lock, flags);
 728         outb(reg, emu->port + AC97ADDRESS);
 729         outw(val, emu->port + AC97DATA);
 730         spin_unlock_irqrestore(&emu->emu_lock, flags);
 731 }
 732
 733 static int snd_emu10k1x_ac97(emu10k1x_t *chip)
 734 {
 735         ac97_bus_t *pbus;
 736         ac97_template_t ac97;
 737         int err;
 738         static ac97_bus_ops_t ops = {
 739                 .write = snd_emu10k1x_ac97_write,
 740                 .read = snd_emu10k1x_ac97_read,
 741         };
 742
 743         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
 744                 return err;
 745         pbus->no_vra = 1; /* we don't need VRA */
 746
 747         memset(&ac97, 0, sizeof(ac97));
 748         ac97.private_data = chip;
 749         ac97.scaps = AC97_SCAP_NO_SPDIF;
 750         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
 751 }
 752
 753 static int snd_emu10k1x_free(emu10k1x_t *chip)
 754 {
 755         snd_emu10k1x_ptr_write(chip, TRIGGER_CHANNEL, 0, 0);
 756         // disable interrupts
 757         outl(0, chip->port + INTE);
 758         // disable audio
 759         outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG);
 760
 761         // release the i/o port
 762         release_and_free_resource(chip->res_port);
 763
 764         // release the irq
 765         if (chip->irq >= 0)
 766                 free_irq(chip->irq, (void *)chip);
 767
 768         // release the DMA
 769         if (chip->dma_buffer.area) {
 770                 snd_dma_free_pages(&chip->dma_buffer);
 771         }
 772
 773         pci_disable_device(chip->pci);
 774
 775         // release the data
 776         kfree(chip);
 777         return 0;
 778 }
 779
 780 static int snd_emu10k1x_dev_free(snd_device_t *device)
 781 {
 782         emu10k1x_t *chip = device->device_data;
 783         return snd_emu10k1x_free(chip);
 784 }
 785
 786 static irqreturn_t snd_emu10k1x_interrupt(int irq, void *dev_id,
 787                                           struct pt_regs *regs)
 788 {
 789         unsigned int status;
 790
 791         emu10k1x_t *chip = dev_id;
 792         emu10k1x_voice_t *pvoice = chip->voices;
 793         int i;
 794         int mask;
 795
 796         status = inl(chip->port + IPR);
 797
 798         if (! status)
 799                 return IRQ_NONE;
 800
 801         // capture interrupt
 802         if (status & (IPR_CAP_0_LOOP | IPR_CAP_0_HALF_LOOP)) {
 803                 emu10k1x_voice_t *pvoice = &chip->capture_voice;
 804                 if(pvoice->use)
 805                         snd_emu10k1x_pcm_interrupt(chip, pvoice);
 806                 else
 807                         snd_emu10k1x_intr_disable(chip,
 808                                                   INTE_CAP_0_LOOP |
 809                                                   INTE_CAP_0_HALF_LOOP);
 810         }
 811
 812         mask = IPR_CH_0_LOOP|IPR_CH_0_HALF_LOOP;
 813         for (i = 0; i < 3; i++) {
 814                 if (status & mask) {
 815                         if (pvoice->use)
 816                                 snd_emu10k1x_pcm_interrupt(chip, pvoice);
 817                         else
 818                                 snd_emu10k1x_intr_disable(chip, mask);
 819                 }
 820                 pvoice++;
 821                 mask <<= 1;
 822         }
 823
 824         if (status & (IPR_MIDITRANSBUFEMPTY|IPR_MIDIRECVBUFEMPTY)) {
 825                 if (chip->midi.interrupt)
 826                         chip->midi.interrupt(chip, status);
 827                 else
 828                         snd_emu10k1x_intr_disable(chip, INTE_MIDITXENABLE|INTE_MIDIRXENABLE);
 829         }
 830
 831         // acknowledge the interrupt if necessary
 832         outl(status, chip->port + IPR);
 833
 834         // snd_printk(KERN_INFO "interrupt %08x\n", status);
 835         return IRQ_HANDLED;
 836 }
 837
 838 static int __devinit snd_emu10k1x_pcm(emu10k1x_t *emu, int device, snd_pcm_t **rpcm)
 839 {
 840         snd_pcm_t *pcm;
 841         int err;
 842         int capture = 0;
 843
 844         if (rpcm)
 845                 *rpcm = NULL;
 846         if (device == 0)
 847                 capture = 1;
 848
 849         if ((err = snd_pcm_new(emu->card, "emu10k1x", device, 1, capture, &pcm)) < 0)
 850                 return err;
 851
 852         pcm->private_data = emu;
 853
 854         switch(device) {
 855         case 0:
 856                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1x_playback_ops);
 857                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1x_capture_ops);
 858                 break;
 859         case 1:
 860         case 2:
 861                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1x_playback_ops);
 862                 break;
 863         }
 864
 865         pcm->info_flags = 0;
 866         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
 867         switch(device) {
 868         case 0:
 869                 strcpy(pcm->name, "EMU10K1X Front");
 870                 break;
 871         case 1:
 872                 strcpy(pcm->name, "EMU10K1X Rear");
 873                 break;
 874         case 2:
 875                 strcpy(pcm->name, "EMU10K1X Center/LFE");
 876                 break;
 877         }
 878         emu->pcm = pcm;
 879
 880         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
 881                                               snd_dma_pci_data(emu->pci),
 882                                               32*1024, 32*1024);
 883
 884         if (rpcm)
 885                 *rpcm = pcm;
 886
 887         return 0;
 888 }
 889
 890 static int __devinit snd_emu10k1x_create(snd_card_t *card,
 891                                          struct pci_dev *pci,
 892                                          emu10k1x_t **rchip)
 893 {
 894         emu10k1x_t *chip;
 895         int err;
 896         int ch;
 897         static snd_device_ops_t ops = {
 898                 .dev_free = snd_emu10k1x_dev_free,
 899         };
 900
 901         *rchip = NULL;
 902
 903         if ((err = pci_enable_device(pci)) < 0)
 904                 return err;
 905         if (pci_set_dma_mask(pci, 0x0fffffff) < 0 ||
 906             pci_set_consistent_dma_mask(pci, 0x0fffffff) < 0) {
 907                 snd_printk(KERN_ERR "error to set 28bit mask DMA\n");
 908                 pci_disable_device(pci);
 909                 return -ENXIO;
 910         }
 911
 912         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
 913         if (chip == NULL) {
 914                 pci_disable_device(pci);
 915                 return -ENOMEM;
 916         }
 917
 918         chip->card = card;
 919         chip->pci = pci;
 920         chip->irq = -1;
 921
 922         spin_lock_init(&chip->emu_lock);
 923         spin_lock_init(&chip->voice_lock);
 924
 925         chip->port = pci_resource_start(pci, 0);
 926         if ((chip->res_port = request_region(chip->port, 8,
 927                                              "EMU10K1X")) == NULL) {
 928                 snd_printk(KERN_ERR "emu10k1x: cannot allocate the port 0x%lx\n", chip->port);
 929                 snd_emu10k1x_free(chip);
 930                 return -EBUSY;
 931         }
 932
 933         if (request_irq(pci->irq, snd_emu10k1x_interrupt,
 934                         SA_INTERRUPT|SA_SHIRQ, "EMU10K1X",
 935                         (void *)chip)) {
 936                 snd_printk(KERN_ERR "emu10k1x: cannot grab irq %d\n", pci->irq);
 937                 snd_emu10k1x_free(chip);
 938                 return -EBUSY;
 939         }
 940         chip->irq = pci->irq;
 941
 942         if(snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
 943                                4 * 1024, &chip->dma_buffer) < 0) {
 944                 snd_emu10k1x_free(chip);
 945                 return -ENOMEM;
 946         }
 947
 948         pci_set_master(pci);
 949         /* read revision & serial */
 950         pci_read_config_byte(pci, PCI_REVISION_ID, (char *)&chip->revision);
 951         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
 952         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
 953         snd_printk(KERN_INFO "Model %04x Rev %08x Serial %08x\n", chip->model,
 954                    chip->revision, chip->serial);
 955
 956         outl(0, chip->port + INTE);
 957
 958         for(ch = 0; ch < 3; ch++) {
 959                 chip->voices[ch].emu = chip;
 960                 chip->voices[ch].number = ch;
 961         }
 962
 963         /*
 964          *  Init to 0x02109204 :
 965          *  Clock accuracy    = 0     (1000ppm)
 966          *  Sample Rate       = 2     (48kHz)
 967          *  Audio Channel     = 1     (Left of 2)
 968          *  Source Number     = 0     (Unspecified)
 969          *  Generation Status = 1     (Original for Cat Code 12)
 970          *  Cat Code          = 12    (Digital Signal Mixer)
 971          *  Mode              = 0     (Mode 0)
 972          *  Emphasis          = 0     (None)
 973          *  CP                = 1     (Copyright unasserted)
 974          *  AN                = 0     (Audio data)
 975          *  P                 = 0     (Consumer)
 976          */
 977         snd_emu10k1x_ptr_write(chip, SPCS0, 0,
 978                                chip->spdif_bits[0] =
 979                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
 980                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
 981                                SPCS_GENERATIONSTATUS | 0x00001200 |
 982                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
 983         snd_emu10k1x_ptr_write(chip, SPCS1, 0,
 984                                chip->spdif_bits[1] =
 985                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
 986                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
 987                                SPCS_GENERATIONSTATUS | 0x00001200 |
 988                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
 989         snd_emu10k1x_ptr_write(chip, SPCS2, 0,
 990                                chip->spdif_bits[2] =
 991                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
 992                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
 993                                SPCS_GENERATIONSTATUS | 0x00001200 |
 994                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
 995
 996         snd_emu10k1x_ptr_write(chip, SPDIF_SELECT, 0, 0x700); // disable SPDIF
 997         snd_emu10k1x_ptr_write(chip, ROUTING, 0, 0x1003F); // routing
 998         snd_emu10k1x_gpio_write(chip, 0x1080); // analog mode
 999
1000         outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG);
1001
1002         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
1003                                   chip, &ops)) < 0) {
1004                 snd_emu10k1x_free(chip);
1005                 return err;
1006         }
1007         *rchip = chip;
1008         return 0;
1009 }
1010
1011 static void snd_emu10k1x_proc_reg_read(snd_info_entry_t *entry,
1012                                        snd_info_buffer_t * buffer)
1013 {
1014         emu10k1x_t *emu = entry->private_data;
1015         unsigned long value,value1,value2;
1016         unsigned long flags;
1017         int i;
1018
1019         snd_iprintf(buffer, "Registers:\n\n");
1020         for(i = 0; i < 0x20; i+=4) {
1021                 spin_lock_irqsave(&emu->emu_lock, flags);
1022                 value = inl(emu->port + i);
1023                 spin_unlock_irqrestore(&emu->emu_lock, flags);
1024                 snd_iprintf(buffer, "Register %02X: %08lX\n", i, value);
1025         }
1026         snd_iprintf(buffer, "\nRegisters\n\n");
1027         for(i = 0; i <= 0x48; i++) {
1028                 value = snd_emu10k1x_ptr_read(emu, i, 0);
1029                 if(i < 0x10 || (i >= 0x20 && i < 0x40)) {
1030                         value1 = snd_emu10k1x_ptr_read(emu, i, 1);
1031                         value2 = snd_emu10k1x_ptr_read(emu, i, 2);
1032                         snd_iprintf(buffer, "%02X: %08lX %08lX %08lX\n", i, value, value1, value2);
1033                 } else {
1034                         snd_iprintf(buffer, "%02X: %08lX\n", i, value);
1035                 }
1036         }
1037 }
1038
1039 static void snd_emu10k1x_proc_reg_write(snd_info_entry_t *entry,
1040                                         snd_info_buffer_t *buffer)
1041 {
1042         emu10k1x_t *emu = entry->private_data;
1043         char line[64];
1044         unsigned int reg, channel_id , val;
1045
1046         while (!snd_info_get_line(buffer, line, sizeof(line))) {
1047                 if (sscanf(line, "%x %x %x", &reg, &channel_id, &val) != 3)
1048                         continue;
1049
1050                 if ((reg < 0x49) && (reg >=0) && (val <= 0xffffffff)
1051                     && (channel_id >=0) && (channel_id <= 2) )
1052                         snd_emu10k1x_ptr_write(emu, reg, channel_id, val);
1053         }
1054 }
1055
1056 static int __devinit snd_emu10k1x_proc_init(emu10k1x_t * emu)
1057 {
1058         snd_info_entry_t *entry;
1059
1060         if(! snd_card_proc_new(emu->card, "emu10k1x_regs", &entry)) {
1061                 snd_info_set_text_ops(entry, emu, 1024, snd_emu10k1x_proc_reg_read);
1062                 entry->c.text.write_size = 64;
1063                 entry->c.text.write = snd_emu10k1x_proc_reg_write;
1064                 entry->mode |= S_IWUSR;
1065                 entry->private_data = emu;
1066         }
1067
1068         return 0;
1069 }
1070
1071 static int snd_emu10k1x_shared_spdif_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
1072 {
1073         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1074         uinfo->count = 1;
1075         uinfo->value.integer.min = 0;
1076         uinfo->value.integer.max = 1;
1077         return 0;
1078 }
1079
1080 static int snd_emu10k1x_shared_spdif_get(snd_kcontrol_t * kcontrol,
1081                                          snd_ctl_elem_value_t * ucontrol)
1082 {
1083         emu10k1x_t *emu = snd_kcontrol_chip(kcontrol);
1084
1085         ucontrol->value.integer.value[0] = (snd_emu10k1x_ptr_read(emu, SPDIF_SELECT, 0) == 0x700) ? 0 : 1;
1086
1087         return 0;
1088 }
1089
1090 static int snd_emu10k1x_shared_spdif_put(snd_kcontrol_t * kcontrol,
1091                                          snd_ctl_elem_value_t * ucontrol)
1092 {
1093         emu10k1x_t *emu = snd_kcontrol_chip(kcontrol);
1094         unsigned int val;
1095         int change = 0;
1096
1097         val = ucontrol->value.integer.value[0] ;
1098
1099         if (val) {
1100                 // enable spdif output
1101                 snd_emu10k1x_ptr_write(emu, SPDIF_SELECT, 0, 0x000);
1102                 snd_emu10k1x_ptr_write(emu, ROUTING, 0, 0x700);
1103                 snd_emu10k1x_gpio_write(emu, 0x1000);
1104         } else {
1105                 // disable spdif output
1106                 snd_emu10k1x_ptr_write(emu, SPDIF_SELECT, 0, 0x700);
1107                 snd_emu10k1x_ptr_write(emu, ROUTING, 0, 0x1003F);
1108                 snd_emu10k1x_gpio_write(emu, 0x1080);
1109         }
1110         return change;
1111 }
1112
1113 static snd_kcontrol_new_t snd_emu10k1x_shared_spdif __devinitdata =
1114 {
1115         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
1116         .name =         "Analog/Digital Output Jack",
1117         .info =         snd_emu10k1x_shared_spdif_info,
1118         .get =          snd_emu10k1x_shared_spdif_get,
1119         .put =          snd_emu10k1x_shared_spdif_put
1120 };
1121
1122 static int snd_emu10k1x_spdif_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
1123 {
1124         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1125         uinfo->count = 1;
1126         return 0;
1127 }
1128
1129 static int snd_emu10k1x_spdif_get(snd_kcontrol_t * kcontrol,
1130                                   snd_ctl_elem_value_t * ucontrol)
1131 {
1132         emu10k1x_t *emu = snd_kcontrol_chip(kcontrol);
1133         unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
1134
1135         ucontrol->value.iec958.status[0] = (emu->spdif_bits[idx] >> 0) & 0xff;
1136         ucontrol->value.iec958.status[1] = (emu->spdif_bits[idx] >> 8) & 0xff;
1137         ucontrol->value.iec958.status[2] = (emu->spdif_bits[idx] >> 16) & 0xff;
1138         ucontrol->value.iec958.status[3] = (emu->spdif_bits[idx] >> 24) & 0xff;
1139         return 0;
1140 }
1141
1142 static int snd_emu10k1x_spdif_get_mask(snd_kcontrol_t * kcontrol,
1143                                        snd_ctl_elem_value_t * ucontrol)
1144 {
1145         ucontrol->value.iec958.status[0] = 0xff;
1146         ucontrol->value.iec958.status[1] = 0xff;
1147         ucontrol->value.iec958.status[2] = 0xff;
1148         ucontrol->value.iec958.status[3] = 0xff;
1149         return 0;
1150 }
1151
1152 static int snd_emu10k1x_spdif_put(snd_kcontrol_t * kcontrol,
1153                                   snd_ctl_elem_value_t * ucontrol)
1154 {
1155         emu10k1x_t *emu = snd_kcontrol_chip(kcontrol);
1156         unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
1157         int change;
1158         unsigned int val;
1159
1160         val = (ucontrol->value.iec958.status[0] << 0) |
1161                 (ucontrol->value.iec958.status[1] << 8) |
1162                 (ucontrol->value.iec958.status[2] << 16) |
1163                 (ucontrol->value.iec958.status[3] << 24);
1164         change = val != emu->spdif_bits[idx];
1165         if (change) {
1166                 snd_emu10k1x_ptr_write(emu, SPCS0 + idx, 0, val);
1167                 emu->spdif_bits[idx] = val;
1168         }
1169         return change;
1170 }
1171
1172 static snd_kcontrol_new_t snd_emu10k1x_spdif_mask_control =
1173 {
1174         .access =       SNDRV_CTL_ELEM_ACCESS_READ,
1175         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
1176         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
1177         .count =        3,
1178         .info =         snd_emu10k1x_spdif_info,
1179         .get =          snd_emu10k1x_spdif_get_mask
1180 };
1181
1182 static snd_kcontrol_new_t snd_emu10k1x_spdif_control =
1183 {
1184         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
1185         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
1186         .count =        3,
1187         .info =         snd_emu10k1x_spdif_info,
1188         .get =          snd_emu10k1x_spdif_get,
1189         .put =          snd_emu10k1x_spdif_put
1190 };
1191
1192 static int __devinit snd_emu10k1x_mixer(emu10k1x_t *emu)
1193 {
1194         int err;
1195         snd_kcontrol_t *kctl;
1196         snd_card_t *card = emu->card;
1197
1198         if ((kctl = snd_ctl_new1(&snd_emu10k1x_spdif_mask_control, emu)) == NULL)
1199                 return -ENOMEM;
1200         if ((err = snd_ctl_add(card, kctl)))
1201                 return err;
1202         if ((kctl = snd_ctl_new1(&snd_emu10k1x_shared_spdif, emu)) == NULL)
1203                 return -ENOMEM;
1204         if ((err = snd_ctl_add(card, kctl)))
1205                 return err;
1206         if ((kctl = snd_ctl_new1(&snd_emu10k1x_spdif_control, emu)) == NULL)
1207                 return -ENOMEM;
1208         if ((err = snd_ctl_add(card, kctl)))
1209                 return err;
1210
1211         return 0;
1212 }
1213
1214 #define EMU10K1X_MIDI_MODE_INPUT        (1<<0)
1215 #define EMU10K1X_MIDI_MODE_OUTPUT       (1<<1)
1216
1217 static inline unsigned char mpu401_read(emu10k1x_t *emu, emu10k1x_midi_t *mpu, int idx)
1218 {
1219         return (unsigned char)snd_emu10k1x_ptr_read(emu, mpu->port + idx, 0);
1220 }
1221
1222 static inline void mpu401_write(emu10k1x_t *emu, emu10k1x_midi_t *mpu, int data, int idx)
1223 {
1224         snd_emu10k1x_ptr_write(emu, mpu->port + idx, 0, data);
1225 }
1226
1227 #define mpu401_write_data(emu, mpu, data)       mpu401_write(emu, mpu, data, 0)
1228 #define mpu401_write_cmd(emu, mpu, data)        mpu401_write(emu, mpu, data, 1)
1229 #define mpu401_read_data(emu, mpu)              mpu401_read(emu, mpu, 0)
1230 #define mpu401_read_stat(emu, mpu)              mpu401_read(emu, mpu, 1)
1231
1232 #define mpu401_input_avail(emu,mpu)     (!(mpu401_read_stat(emu,mpu) & 0x80))
1233 #define mpu401_output_ready(emu,mpu)    (!(mpu401_read_stat(emu,mpu) & 0x40))
1234
1235 #define MPU401_RESET            0xff
1236 #define MPU401_ENTER_UART       0x3f
1237 #define MPU401_ACK              0xfe
1238
1239 static void mpu401_clear_rx(emu10k1x_t *emu, emu10k1x_midi_t *mpu)
1240 {
1241         int timeout = 100000;
1242         for (; timeout > 0 && mpu401_input_avail(emu, mpu); timeout--)
1243                 mpu401_read_data(emu, mpu);
1244 #ifdef CONFIG_SND_DEBUG
1245         if (timeout <= 0)
1246                 snd_printk(KERN_ERR "cmd: clear rx timeout (status = 0x%x)\n", mpu401_read_stat(emu, mpu));
1247 #endif
1248 }
1249
1250 /*
1251
1252  */
1253
1254 static void do_emu10k1x_midi_interrupt(emu10k1x_t *emu, emu10k1x_midi_t *midi, unsigned int status)
1255 {
1256         unsigned char byte;
1257
1258         if (midi->rmidi == NULL) {
1259                 snd_emu10k1x_intr_disable(emu, midi->tx_enable | midi->rx_enable);
1260                 return;
1261         }
1262
1263         spin_lock(&midi->input_lock);
1264         if ((status & midi->ipr_rx) && mpu401_input_avail(emu, midi)) {
1265                 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
1266                         mpu401_clear_rx(emu, midi);
1267                 } else {
1268                         byte = mpu401_read_data(emu, midi);
1269                         if (midi->substream_input)
1270                                 snd_rawmidi_receive(midi->substream_input, &byte, 1);
1271                 }
1272         }
1273         spin_unlock(&midi->input_lock);
1274
1275         spin_lock(&midi->output_lock);
1276         if ((status & midi->ipr_tx) && mpu401_output_ready(emu, midi)) {
1277                 if (midi->substream_output &&
1278                     snd_rawmidi_transmit(midi->substream_output, &byte, 1) == 1) {
1279                         mpu401_write_data(emu, midi, byte);
1280                 } else {
1281                         snd_emu10k1x_intr_disable(emu, midi->tx_enable);
1282                 }
1283         }
1284         spin_unlock(&midi->output_lock);
1285 }
1286
1287 static void snd_emu10k1x_midi_interrupt(emu10k1x_t *emu, unsigned int status)
1288 {
1289         do_emu10k1x_midi_interrupt(emu, &emu->midi, status);
1290 }
1291
1292 static void snd_emu10k1x_midi_cmd(emu10k1x_t * emu, emu10k1x_midi_t *midi, unsigned char cmd, int ack)
1293 {
1294         unsigned long flags;
1295         int timeout, ok;
1296
1297         spin_lock_irqsave(&midi->input_lock, flags);
1298         mpu401_write_data(emu, midi, 0x00);
1299         /* mpu401_clear_rx(emu, midi); */
1300
1301         mpu401_write_cmd(emu, midi, cmd);
1302         if (ack) {
1303                 ok = 0;
1304                 timeout = 10000;
1305                 while (!ok && timeout-- > 0) {
1306                         if (mpu401_input_avail(emu, midi)) {
1307                                 if (mpu401_read_data(emu, midi) == MPU401_ACK)
1308                                         ok = 1;
1309                         }
1310                 }
1311                 if (!ok && mpu401_read_data(emu, midi) == MPU401_ACK)
1312                         ok = 1;
1313         } else {
1314                 ok = 1;
1315         }
1316         spin_unlock_irqrestore(&midi->input_lock, flags);
1317         if (!ok)
1318                 snd_printk(KERN_ERR "midi_cmd: 0x%x failed at 0x%lx (status = 0x%x, data = 0x%x)!!!\n",
1319                            cmd, emu->port,
1320                            mpu401_read_stat(emu, midi),
1321                            mpu401_read_data(emu, midi));
1322 }
1323
1324 static int snd_emu10k1x_midi_input_open(snd_rawmidi_substream_t * substream)
1325 {
1326         emu10k1x_t *emu;
1327         emu10k1x_midi_t *midi = (emu10k1x_midi_t *)substream->rmidi->private_data;
1328         unsigned long flags;
1329
1330         emu = midi->emu;
1331         snd_assert(emu, return -ENXIO);
1332         spin_lock_irqsave(&midi->open_lock, flags);
1333         midi->midi_mode |= EMU10K1X_MIDI_MODE_INPUT;
1334         midi->substream_input = substream;
1335         if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT)) {
1336                 spin_unlock_irqrestore(&midi->open_lock, flags);
1337                 snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 1);
1338                 snd_emu10k1x_midi_cmd(emu, midi, MPU401_ENTER_UART, 1);
1339         } else {
1340                 spin_unlock_irqrestore(&midi->open_lock, flags);
1341         }
1342         return 0;
1343 }
1344
1345 static int snd_emu10k1x_midi_output_open(snd_rawmidi_substream_t * substream)
1346 {
1347         emu10k1x_t *emu;
1348         emu10k1x_midi_t *midi = (emu10k1x_midi_t *)substream->rmidi->private_data;
1349         unsigned long flags;
1350
1351         emu = midi->emu;
1352         snd_assert(emu, return -ENXIO);
1353         spin_lock_irqsave(&midi->open_lock, flags);
1354         midi->midi_mode |= EMU10K1X_MIDI_MODE_OUTPUT;
1355         midi->substream_output = substream;
1356         if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
1357                 spin_unlock_irqrestore(&midi->open_lock, flags);
1358                 snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 1);
1359                 snd_emu10k1x_midi_cmd(emu, midi, MPU401_ENTER_UART, 1);
1360         } else {
1361                 spin_unlock_irqrestore(&midi->open_lock, flags);
1362         }
1363         return 0;
1364 }
1365
1366 static int snd_emu10k1x_midi_input_close(snd_rawmidi_substream_t * substream)
1367 {
1368         emu10k1x_t *emu;
1369         emu10k1x_midi_t *midi = (emu10k1x_midi_t *)substream->rmidi->private_data;
1370         unsigned long flags;
1371
1372         emu = midi->emu;
1373         snd_assert(emu, return -ENXIO);
1374         spin_lock_irqsave(&midi->open_lock, flags);
1375         snd_emu10k1x_intr_disable(emu, midi->rx_enable);
1376         midi->midi_mode &= ~EMU10K1X_MIDI_MODE_INPUT;
1377         midi->substream_input = NULL;
1378         if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT)) {
1379                 spin_unlock_irqrestore(&midi->open_lock, flags);
1380                 snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 0);
1381         } else {
1382                 spin_unlock_irqrestore(&midi->open_lock, flags);
1383         }
1384         return 0;
1385 }
1386
1387 static int snd_emu10k1x_midi_output_close(snd_rawmidi_substream_t * substream)
1388 {
1389         emu10k1x_t *emu;
1390         emu10k1x_midi_t *midi = (emu10k1x_midi_t *)substream->rmidi->private_data;
1391         unsigned long flags;
1392
1393         emu = midi->emu;
1394         snd_assert(emu, return -ENXIO);
1395         spin_lock_irqsave(&midi->open_lock, flags);
1396         snd_emu10k1x_intr_disable(emu, midi->tx_enable);
1397         midi->midi_mode &= ~EMU10K1X_MIDI_MODE_OUTPUT;
1398         midi->substream_output = NULL;
1399         if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
1400                 spin_unlock_irqrestore(&midi->open_lock, flags);
1401                 snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 0);
1402         } else {
1403                 spin_unlock_irqrestore(&midi->open_lock, flags);
1404         }
1405         return 0;
1406 }
1407
1408 static void snd_emu10k1x_midi_input_trigger(snd_rawmidi_substream_t * substream, int up)
1409 {
1410         emu10k1x_t *emu;
1411         emu10k1x_midi_t *midi = (emu10k1x_midi_t *)substream->rmidi->private_data;
1412         emu = midi->emu;
1413         snd_assert(emu, return);
1414
1415         if (up)
1416                 snd_emu10k1x_intr_enable(emu, midi->rx_enable);
1417         else
1418                 snd_emu10k1x_intr_disable(emu, midi->rx_enable);
1419 }
1420
1421 static void snd_emu10k1x_midi_output_trigger(snd_rawmidi_substream_t * substream, int up)
1422 {
1423         emu10k1x_t *emu;
1424         emu10k1x_midi_t *midi = (emu10k1x_midi_t *)substream->rmidi->private_data;
1425         unsigned long flags;
1426
1427         emu = midi->emu;
1428         snd_assert(emu, return);
1429
1430         if (up) {
1431                 int max = 4;
1432                 unsigned char byte;
1433
1434                 /* try to send some amount of bytes here before interrupts */
1435                 spin_lock_irqsave(&midi->output_lock, flags);
1436                 while (max > 0) {
1437                         if (mpu401_output_ready(emu, midi)) {
1438                                 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT) ||
1439                                     snd_rawmidi_transmit(substream, &byte, 1) != 1) {
1440                                         /* no more data */
1441                                         spin_unlock_irqrestore(&midi->output_lock, flags);
1442                                         return;
1443                                 }
1444                                 mpu401_write_data(emu, midi, byte);
1445                                 max--;
1446                         } else {
1447                                 break;
1448                         }
1449                 }
1450                 spin_unlock_irqrestore(&midi->output_lock, flags);
1451                 snd_emu10k1x_intr_enable(emu, midi->tx_enable);
1452         } else {
1453                 snd_emu10k1x_intr_disable(emu, midi->tx_enable);
1454         }
1455 }
1456
1457 /*
1458
1459  */
1460
1461 static snd_rawmidi_ops_t snd_emu10k1x_midi_output =
1462 {
1463         .open =         snd_emu10k1x_midi_output_open,
1464         .close =        snd_emu10k1x_midi_output_close,
1465         .trigger =      snd_emu10k1x_midi_output_trigger,
1466 };
1467
1468 static snd_rawmidi_ops_t snd_emu10k1x_midi_input =
1469 {
1470         .open =         snd_emu10k1x_midi_input_open,
1471         .close =        snd_emu10k1x_midi_input_close,
1472         .trigger =      snd_emu10k1x_midi_input_trigger,
1473 };
1474
1475 static void snd_emu10k1x_midi_free(snd_rawmidi_t *rmidi)
1476 {
1477         emu10k1x_midi_t *midi = (emu10k1x_midi_t *)rmidi->private_data;
1478         midi->interrupt = NULL;
1479         midi->rmidi = NULL;
1480 }
1481
1482 static int __devinit emu10k1x_midi_init(emu10k1x_t *emu, emu10k1x_midi_t *midi, int device, char *name)
1483 {
1484         snd_rawmidi_t *rmidi;
1485         int err;
1486
1487         if ((err = snd_rawmidi_new(emu->card, name, device, 1, 1, &rmidi)) < 0)
1488                 return err;
1489         midi->emu = emu;
1490         spin_lock_init(&midi->open_lock);
1491         spin_lock_init(&midi->input_lock);
1492         spin_lock_init(&midi->output_lock);
1493         strcpy(rmidi->name, name);
1494         snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_emu10k1x_midi_output);
1495         snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_emu10k1x_midi_input);
1496         rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT |
1497                              SNDRV_RAWMIDI_INFO_INPUT |
1498                              SNDRV_RAWMIDI_INFO_DUPLEX;
1499         rmidi->private_data = midi;
1500         rmidi->private_free = snd_emu10k1x_midi_free;
1501         midi->rmidi = rmidi;
1502         return 0;
1503 }
1504
1505 static int __devinit snd_emu10k1x_midi(emu10k1x_t *emu)
1506 {
1507         emu10k1x_midi_t *midi = &emu->midi;
1508         int err;
1509
1510         if ((err = emu10k1x_midi_init(emu, midi, 0, "EMU10K1X MPU-401 (UART)")) < 0)
1511                 return err;
1512
1513         midi->tx_enable = INTE_MIDITXENABLE;
1514         midi->rx_enable = INTE_MIDIRXENABLE;
1515         midi->port = MUDATA;
1516         midi->ipr_tx = IPR_MIDITRANSBUFEMPTY;
1517         midi->ipr_rx = IPR_MIDIRECVBUFEMPTY;
1518         midi->interrupt = snd_emu10k1x_midi_interrupt;
1519         return 0;
1520 }
1521
1522 static int __devinit snd_emu10k1x_probe(struct pci_dev *pci,
1523                                         const struct pci_device_id *pci_id)
1524 {
1525         static int dev;
1526         snd_card_t *card;
1527         emu10k1x_t *chip;
1528         int err;
1529
1530         if (dev >= SNDRV_CARDS)
1531                 return -ENODEV;
1532         if (!enable[dev]) {
1533                 dev++;
1534                 return -ENOENT;
1535         }
1536
1537         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
1538         if (card == NULL)
1539                 return -ENOMEM;
1540
1541         if ((err = snd_emu10k1x_create(card, pci, &chip)) < 0) {
1542                 snd_card_free(card);
1543                 return err;
1544         }
1545
1546         if ((err = snd_emu10k1x_pcm(chip, 0, NULL)) < 0) {
1547                 snd_card_free(card);
1548                 return err;
1549         }
1550         if ((err = snd_emu10k1x_pcm(chip, 1, NULL)) < 0) {
1551                 snd_card_free(card);
1552                 return err;
1553         }
1554         if ((err = snd_emu10k1x_pcm(chip, 2, NULL)) < 0) {
1555                 snd_card_free(card);
1556                 return err;
1557         }
1558
1559         if ((err = snd_emu10k1x_ac97(chip)) < 0) {
1560                 snd_card_free(card);
1561                 return err;
1562         }
1563
1564         if ((err = snd_emu10k1x_mixer(chip)) < 0) {
1565                 snd_card_free(card);
1566                 return err;
1567         }
1568
1569         if ((err = snd_emu10k1x_midi(chip)) < 0) {
1570                 snd_card_free(card);
1571                 return err;
1572         }
1573
1574         snd_emu10k1x_proc_init(chip);
1575
1576         strcpy(card->driver, "EMU10K1X");
1577         strcpy(card->shortname, "Dell Sound Blaster Live!");
1578         sprintf(card->longname, "%s at 0x%lx irq %i",
1579                 card->shortname, chip->port, chip->irq);
1580
1581         if ((err = snd_card_register(card)) < 0) {
1582                 snd_card_free(card);
1583                 return err;
1584         }
1585
1586         pci_set_drvdata(pci, card);
1587         dev++;
1588         return 0;
1589 }
1590
1591 static void __devexit snd_emu10k1x_remove(struct pci_dev *pci)
1592 {
1593         snd_card_free(pci_get_drvdata(pci));
1594         pci_set_drvdata(pci, NULL);
1595 }
1596
1597 // PCI IDs
1598 static struct pci_device_id snd_emu10k1x_ids[] = {
1599         { 0x1102, 0x0006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },    /* Dell OEM version (EMU10K1) */
1600         { 0, }
1601 };
1602 MODULE_DEVICE_TABLE(pci, snd_emu10k1x_ids);
1603
1604 // pci_driver definition
1605 static struct pci_driver driver = {
1606         .name = "EMU10K1X",
1607         .id_table = snd_emu10k1x_ids,
1608         .probe = snd_emu10k1x_probe,
1609         .remove = __devexit_p(snd_emu10k1x_remove),
1610 };
1611
1612 // initialization of the module
1613 static int __init alsa_card_emu10k1x_init(void)
1614 {
1615         int err;
1616
1617         if ((err = pci_register_driver(&driver)) > 0)
1618                 return err;
1619
1620         return 0;
1621 }
1622
1623 // clean up the module
1624 static void __exit alsa_card_emu10k1x_exit(void)
1625 {
1626         pci_unregister_driver(&driver);
1627 }
1628
1629 module_init(alsa_card_emu10k1x_init)
1630 module_exit(alsa_card_emu10k1x_exit)