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/dma-mapping.h>
  37 #include <linux/slab.h>
  38 #include <linux/moduleparam.h>
  39 #include <sound/core.h>
  40 #include <sound/initval.h>
  41 #include <sound/pcm.h>
  42 #include <sound/ac97_codec.h>
  43 #include <sound/info.h>
  44 #include <sound/rawmidi.h>
  45
  46 MODULE_AUTHOR("Francisco Moraes <fmoraes@nc.rr.com>");
  47 MODULE_DESCRIPTION("EMU10K1X");
  48 MODULE_LICENSE("GPL");
  49 MODULE_SUPPORTED_DEVICE("{{Dell Creative Labs,SB Live!}");
  50
  51 // module parameters (see "Module Parameters")
  52 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
  53 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
  54 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
  55
  56 module_param_array(index, int, NULL, 0444);
  57 MODULE_PARM_DESC(index, "Index value for the EMU10K1X soundcard.");
  58 module_param_array(id, charp, NULL, 0444);
  59 MODULE_PARM_DESC(id, "ID string for the EMU10K1X soundcard.");
  60 module_param_array(enable, bool, NULL, 0444);
  61 MODULE_PARM_DESC(enable, "Enable the EMU10K1X soundcard.");
  62
  63
  64 // some definitions were borrowed from emu10k1 driver as they seem to be the same
  65 /************************************************************************************************/
  66 /* PCI function 0 registers, address = <val> + PCIBASE0                                         */
  67 /************************************************************************************************/
  68
  69 #define PTR                     0x00            /* Indexed register set pointer register        */
  70                                                 /* NOTE: The CHANNELNUM and ADDRESS words can   */
  71                                                 /* be modified independently of each other.     */
  72
  73 #define DATA                    0x04            /* Indexed register set data register           */
  74
  75 #define IPR                     0x08            /* Global interrupt pending register            */
  76                                                 /* Clear pending interrupts by writing a 1 to   */
  77                                                 /* the relevant bits and zero to the other bits */
  78 #define IPR_MIDITRANSBUFEMPTY   0x00000001      /* MIDI UART transmit buffer empty              */
  79 #define IPR_MIDIRECVBUFEMPTY    0x00000002      /* MIDI UART receive buffer empty               */
  80 #define IPR_CH_0_LOOP           0x00000800      /* Channel 0 loop                               */
  81 #define IPR_CH_0_HALF_LOOP      0x00000100      /* Channel 0 half loop                          */
  82 #define IPR_CAP_0_LOOP          0x00080000      /* Channel capture loop                         */
  83 #define IPR_CAP_0_HALF_LOOP     0x00010000      /* Channel capture half loop                    */
  84
  85 #define INTE                    0x0c            /* Interrupt enable register                    */
  86 #define INTE_MIDITXENABLE       0x00000001      /* Enable MIDI transmit-buffer-empty interrupts */
  87 #define INTE_MIDIRXENABLE       0x00000002      /* Enable MIDI receive-buffer-empty interrupts  */
  88 #define INTE_CH_0_LOOP          0x00000800      /* Channel 0 loop                               */
  89 #define INTE_CH_0_HALF_LOOP     0x00000100      /* Channel 0 half loop                          */
  90 #define INTE_CAP_0_LOOP         0x00080000      /* Channel capture loop                         */
  91 #define INTE_CAP_0_HALF_LOOP    0x00010000      /* Channel capture half loop                    */
  92
  93 #define HCFG                    0x14            /* Hardware config register                     */
  94
  95 #define HCFG_LOCKSOUNDCACHE     0x00000008      /* 1 = Cancel bustmaster accesses to soundcache */
  96                                                 /* NOTE: This should generally never be used.   */
  97 #define HCFG_AUDIOENABLE        0x00000001      /* 0 = CODECs transmit zero-valued samples      */
  98                                                 /* Should be set to 1 when the EMU10K1 is       */
  99                                                 /* completely initialized.                      */
 100 #define GPIO                    0x18            /* Defaults: 00001080-Analog, 00001000-SPDIF.   */
 101
 102
 103 #define AC97DATA                0x1c            /* AC97 register set data register (16 bit)     */
 104
 105 #define AC97ADDRESS             0x1e            /* AC97 register set address register (8 bit)   */
 106
 107 /********************************************************************************************************/
 108 /* Emu10k1x pointer-offset register set, accessed through the PTR and DATA registers                    */
 109 /********************************************************************************************************/
 110 #define PLAYBACK_LIST_ADDR      0x00            /* Base DMA address of a list of pointers to each period/size */
 111                                                 /* One list entry: 4 bytes for DMA address,
 112                                                  * 4 bytes for period_size << 16.
 113                                                  * One list entry is 8 bytes long.
 114                                                  * One list entry for each period in the buffer.
 115                                                  */
 116 #define PLAYBACK_LIST_SIZE      0x01            /* Size of list in bytes << 16. E.g. 8 periods -> 0x00380000  */
 117 #define PLAYBACK_LIST_PTR       0x02            /* Pointer to the current period being played */
 118 #define PLAYBACK_DMA_ADDR       0x04            /* Playback DMA addresss */
 119 #define PLAYBACK_PERIOD_SIZE    0x05            /* Playback period size */
 120 #define PLAYBACK_POINTER        0x06            /* Playback period pointer. Sample currently in DAC */
 121 #define PLAYBACK_UNKNOWN1       0x07
 122 #define PLAYBACK_UNKNOWN2       0x08
 123
 124 /* Only one capture channel supported */
 125 #define CAPTURE_DMA_ADDR        0x10            /* Capture DMA address */
 126 #define CAPTURE_BUFFER_SIZE     0x11            /* Capture buffer size */
 127 #define CAPTURE_POINTER         0x12            /* Capture buffer pointer. Sample currently in ADC */
 128 #define CAPTURE_UNKNOWN         0x13
 129
 130 /* From 0x20 - 0x3f, last samples played on each channel */
 131
 132 #define TRIGGER_CHANNEL         0x40            /* Trigger channel playback                     */
 133 #define TRIGGER_CHANNEL_0       0x00000001      /* Trigger channel 0                            */
 134 #define TRIGGER_CHANNEL_1       0x00000002      /* Trigger channel 1                            */
 135 #define TRIGGER_CHANNEL_2       0x00000004      /* Trigger channel 2                            */
 136 #define TRIGGER_CAPTURE         0x00000100      /* Trigger capture channel                      */
 137
 138 #define ROUTING                 0x41            /* Setup sound routing ?                        */
 139 #define ROUTING_FRONT_LEFT      0x00000001
 140 #define ROUTING_FRONT_RIGHT     0x00000002
 141 #define ROUTING_REAR_LEFT       0x00000004
 142 #define ROUTING_REAR_RIGHT      0x00000008
 143 #define ROUTING_CENTER_LFE      0x00010000
 144
 145 #define SPCS0                   0x42            /* SPDIF output Channel Status 0 register       */
 146
 147 #define SPCS1                   0x43            /* SPDIF output Channel Status 1 register       */
 148
 149 #define SPCS2                   0x44            /* SPDIF output Channel Status 2 register       */
 150
 151 #define SPCS_CLKACCYMASK        0x30000000      /* Clock accuracy                               */
 152 #define SPCS_CLKACCY_1000PPM    0x00000000      /* 1000 parts per million                       */
 153 #define SPCS_CLKACCY_50PPM      0x10000000      /* 50 parts per million                         */
 154 #define SPCS_CLKACCY_VARIABLE   0x20000000      /* Variable accuracy                            */
 155 #define SPCS_SAMPLERATEMASK     0x0f000000      /* Sample rate                                  */
 156 #define SPCS_SAMPLERATE_44      0x00000000      /* 44.1kHz sample rate                          */
 157 #define SPCS_SAMPLERATE_48      0x02000000      /* 48kHz sample rate                            */
 158 #define SPCS_SAMPLERATE_32      0x03000000      /* 32kHz sample rate                            */
 159 #define SPCS_CHANNELNUMMASK     0x00f00000      /* Channel number                               */
 160 #define SPCS_CHANNELNUM_UNSPEC  0x00000000      /* Unspecified channel number                   */
 161 #define SPCS_CHANNELNUM_LEFT    0x00100000      /* Left channel                                 */
 162 #define SPCS_CHANNELNUM_RIGHT   0x00200000      /* Right channel                                */
 163 #define SPCS_SOURCENUMMASK      0x000f0000      /* Source number                                */
 164 #define SPCS_SOURCENUM_UNSPEC   0x00000000      /* Unspecified source number                    */
 165 #define SPCS_GENERATIONSTATUS   0x00008000      /* Originality flag (see IEC-958 spec)          */
 166 #define SPCS_CATEGORYCODEMASK   0x00007f00      /* Category code (see IEC-958 spec)             */
 167 #define SPCS_MODEMASK           0x000000c0      /* Mode (see IEC-958 spec)                      */
 168 #define SPCS_EMPHASISMASK       0x00000038      /* Emphasis                                     */
 169 #define SPCS_EMPHASIS_NONE      0x00000000      /* No emphasis                                  */
 170 #define SPCS_EMPHASIS_50_15     0x00000008      /* 50/15 usec 2 channel                         */
 171 #define SPCS_COPYRIGHT          0x00000004      /* Copyright asserted flag -- do not modify     */
 172 #define SPCS_NOTAUDIODATA       0x00000002      /* 0 = Digital audio, 1 = not audio             */
 173 #define SPCS_PROFESSIONAL       0x00000001      /* 0 = Consumer (IEC-958), 1 = pro (AES3-1992)  */
 174
 175 #define SPDIF_SELECT            0x45            /* Enables SPDIF or Analogue outputs 0-Analogue, 0x700-SPDIF */
 176
 177 /* This is the MPU port on the card                                                             */
 178 #define MUDATA          0x47
 179 #define MUCMD           0x48
 180 #define MUSTAT          MUCMD
 181
 182 /* From 0x50 - 0x5f, last samples captured */
 183
 184 /**
 185  * The hardware has 3 channels for playback and 1 for capture.
 186  *  - channel 0 is the front channel
 187  *  - channel 1 is the rear channel
 188  *  - channel 2 is the center/lfe chanel
 189  * Volume is controlled by the AC97 for the front and rear channels by
 190  * the PCM Playback Volume, Sigmatel Surround Playback Volume and
 191  * Surround Playback Volume. The Sigmatel 4-Speaker Stereo switch affects
 192  * the front/rear channel mixing in the REAR OUT jack. When using the
 193  * 4-Speaker Stereo, both front and rear channels will be mixed in the
 194  * REAR OUT.
 195  * The center/lfe channel has no volume control and cannot be muted during
 196  * playback.
 197  */
 198
 199 struct emu10k1x_voice {
 200         struct emu10k1x *emu;
 201         int number;
 202         int use;
 203
 204         struct emu10k1x_pcm *epcm;
 205 };
 206
 207 struct emu10k1x_pcm {
 208         struct emu10k1x *emu;
 209         struct snd_pcm_substream *substream;
 210         struct emu10k1x_voice *voice;
 211         unsigned short running;
 212 };
 213
 214 struct emu10k1x_midi {
 215         struct emu10k1x *emu;
 216         struct snd_rawmidi *rmidi;
 217         struct snd_rawmidi_substream *substream_input;
 218         struct snd_rawmidi_substream *substream_output;
 219         unsigned int midi_mode;
 220         spinlock_t input_lock;
 221         spinlock_t output_lock;
 222         spinlock_t open_lock;
 223         int tx_enable, rx_enable;
 224         int port;
 225         int ipr_tx, ipr_rx;
 226         void (*interrupt)(struct emu10k1x *emu, unsigned int status);
 227 };
 228
 229 // definition of the chip-specific record
 230 struct emu10k1x {
 231         struct snd_card *card;
 232         struct pci_dev *pci;
 233
 234         unsigned long port;
 235         struct resource *res_port;
 236         int irq;
 237
 238         unsigned int revision;          /* chip revision */
 239         unsigned int serial;            /* serial number */
 240         unsigned short model;           /* subsystem id */
 241
 242         spinlock_t emu_lock;
 243         spinlock_t voice_lock;
 244
 245         struct snd_ac97 *ac97;
 246         struct snd_pcm *pcm;
 247
 248         struct emu10k1x_voice voices[3];
 249         struct emu10k1x_voice capture_voice;
 250         u32 spdif_bits[3]; // SPDIF out setup
 251
 252         struct snd_dma_buffer dma_buffer;
 253
 254         struct emu10k1x_midi midi;
 255 };
 256
 257 /* hardware definition */
 258 static struct snd_pcm_hardware snd_emu10k1x_playback_hw = {
 259         .info =                 (SNDRV_PCM_INFO_MMAP |
 260                                  SNDRV_PCM_INFO_INTERLEAVED |
 261                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 262                                  SNDRV_PCM_INFO_MMAP_VALID),
 263         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
 264         .rates =                SNDRV_PCM_RATE_48000,
 265         .rate_min =             48000,
 266         .rate_max =             48000,
 267         .channels_min =         2,
 268         .channels_max =         2,
 269         .buffer_bytes_max =     (32*1024),
 270         .period_bytes_min =     64,
 271         .period_bytes_max =     (16*1024),
 272         .periods_min =          2,
 273         .periods_max =          8,
 274         .fifo_size =            0,
 275 };
 276
 277 static struct snd_pcm_hardware snd_emu10k1x_capture_hw = {
 278         .info =                 (SNDRV_PCM_INFO_MMAP |
 279                                  SNDRV_PCM_INFO_INTERLEAVED |
 280                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 281                                  SNDRV_PCM_INFO_MMAP_VALID),
 282         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
 283         .rates =                SNDRV_PCM_RATE_48000,
 284         .rate_min =             48000,
 285         .rate_max =             48000,
 286         .channels_min =         2,
 287         .channels_max =         2,
 288         .buffer_bytes_max =     (32*1024),
 289         .period_bytes_min =     64,
 290         .period_bytes_max =     (16*1024),
 291         .periods_min =          2,
 292         .periods_max =          2,
 293         .fifo_size =            0,
 294 };
 295
 296 static unsigned int snd_emu10k1x_ptr_read(struct emu10k1x * emu,
 297                                           unsigned int reg,
 298                                           unsigned int chn)
 299 {
 300         unsigned long flags;
 301         unsigned int regptr, val;
 302
 303         regptr = (reg << 16) | chn;
 304
 305         spin_lock_irqsave(&emu->emu_lock, flags);
 306         outl(regptr, emu->port + PTR);
 307         val = inl(emu->port + DATA);
 308         spin_unlock_irqrestore(&emu->emu_lock, flags);
 309         return val;
 310 }
 311
 312 static void snd_emu10k1x_ptr_write(struct emu10k1x *emu,
 313                                    unsigned int reg,
 314                                    unsigned int chn,
 315                                    unsigned int data)
 316 {
 317         unsigned int regptr;
 318         unsigned long flags;
 319
 320         regptr = (reg << 16) | chn;
 321
 322         spin_lock_irqsave(&emu->emu_lock, flags);
 323         outl(regptr, emu->port + PTR);
 324         outl(data, emu->port + DATA);
 325         spin_unlock_irqrestore(&emu->emu_lock, flags);
 326 }
 327
 328 static void snd_emu10k1x_intr_enable(struct emu10k1x *emu, unsigned int intrenb)
 329 {
 330         unsigned long flags;
 331         unsigned int enable;
 332
 333         spin_lock_irqsave(&emu->emu_lock, flags);
 334         enable = inl(emu->port + INTE) | intrenb;
 335         outl(enable, emu->port + INTE);
 336         spin_unlock_irqrestore(&emu->emu_lock, flags);
 337 }
 338
 339 static void snd_emu10k1x_intr_disable(struct emu10k1x *emu, unsigned int intrenb)
 340 {
 341         unsigned long flags;
 342         unsigned int enable;
 343
 344         spin_lock_irqsave(&emu->emu_lock, flags);
 345         enable = inl(emu->port + INTE) & ~intrenb;
 346         outl(enable, emu->port + INTE);
 347         spin_unlock_irqrestore(&emu->emu_lock, flags);
 348 }
 349
 350 static void snd_emu10k1x_gpio_write(struct emu10k1x *emu, unsigned int value)
 351 {
 352         unsigned long flags;
 353
 354         spin_lock_irqsave(&emu->emu_lock, flags);
 355         outl(value, emu->port + GPIO);
 356         spin_unlock_irqrestore(&emu->emu_lock, flags);
 357 }
 358
 359 static void snd_emu10k1x_pcm_free_substream(struct snd_pcm_runtime *runtime)
 360 {
 361         kfree(runtime->private_data);
 362 }
 363
 364 static void snd_emu10k1x_pcm_interrupt(struct emu10k1x *emu, struct emu10k1x_voice *voice)
 365 {
 366         struct emu10k1x_pcm *epcm;
 367
 368         if ((epcm = voice->epcm) == NULL)
 369                 return;
 370         if (epcm->substream == NULL)
 371                 return;
 372 #if 0
 373         snd_printk(KERN_INFO "IRQ: position = 0x%x, period = 0x%x, size = 0x%x\n",
 374                    epcm->substream->ops->pointer(epcm->substream),
 375                    snd_pcm_lib_period_bytes(epcm->substream),
 376                    snd_pcm_lib_buffer_bytes(epcm->substream));
 377 #endif
 378         snd_pcm_period_elapsed(epcm->substream);
 379 }
 380
 381 /* open callback */
 382 static int snd_emu10k1x_playback_open(struct snd_pcm_substream *substream)
 383 {
 384         struct emu10k1x *chip = snd_pcm_substream_chip(substream);
 385         struct emu10k1x_pcm *epcm;
 386         struct snd_pcm_runtime *runtime = substream->runtime;
 387         int err;
 388
 389         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) {
 390                 return err;
 391         }
 392         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 393                 return err;
 394
 395         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 396         if (epcm == NULL)
 397                 return -ENOMEM;
 398         epcm->emu = chip;
 399         epcm->substream = substream;
 400
 401         runtime->private_data = epcm;
 402         runtime->private_free = snd_emu10k1x_pcm_free_substream;
 403
 404         runtime->hw = snd_emu10k1x_playback_hw;
 405
 406         return 0;
 407 }
 408
 409 /* close callback */
 410 static int snd_emu10k1x_playback_close(struct snd_pcm_substream *substream)
 411 {
 412         return 0;
 413 }
 414
 415 /* hw_params callback */
 416 static int snd_emu10k1x_pcm_hw_params(struct snd_pcm_substream *substream,
 417                                       struct snd_pcm_hw_params *hw_params)
 418 {
 419         struct snd_pcm_runtime *runtime = substream->runtime;
 420         struct emu10k1x_pcm *epcm = runtime->private_data;
 421
 422         if (! epcm->voice) {
 423                 epcm->voice = &epcm->emu->voices[substream->pcm->device];
 424                 epcm->voice->use = 1;
 425                 epcm->voice->epcm = epcm;
 426         }
 427
 428         return snd_pcm_lib_malloc_pages(substream,
 429                                         params_buffer_bytes(hw_params));
 430 }
 431
 432 /* hw_free callback */
 433 static int snd_emu10k1x_pcm_hw_free(struct snd_pcm_substream *substream)
 434 {
 435         struct snd_pcm_runtime *runtime = substream->runtime;
 436         struct emu10k1x_pcm *epcm;
 437
 438         if (runtime->private_data == NULL)
 439                 return 0;
 440
 441         epcm = runtime->private_data;
 442
 443         if (epcm->voice) {
 444                 epcm->voice->use = 0;
 445                 epcm->voice->epcm = NULL;
 446                 epcm->voice = NULL;
 447         }
 448
 449         return snd_pcm_lib_free_pages(substream);
 450 }
 451
 452 /* prepare callback */
 453 static int snd_emu10k1x_pcm_prepare(struct snd_pcm_substream *substream)
 454 {
 455         struct emu10k1x *emu = snd_pcm_substream_chip(substream);
 456         struct snd_pcm_runtime *runtime = substream->runtime;
 457         struct emu10k1x_pcm *epcm = runtime->private_data;
 458         int voice = epcm->voice->number;
 459         u32 *table_base = (u32 *)(emu->dma_buffer.area+1024*voice);
 460         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
 461         int i;
 462
 463         for(i=0; i < runtime->periods; i++) {
 464                 *table_base++=runtime->dma_addr+(i*period_size_bytes);
 465                 *table_base++=period_size_bytes<<16;
 466         }
 467
 468         snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_ADDR, voice, emu->dma_buffer.addr+1024*voice);
 469         snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_SIZE, voice, (runtime->periods - 1) << 19);
 470         snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_PTR, voice, 0);
 471         snd_emu10k1x_ptr_write(emu, PLAYBACK_POINTER, voice, 0);
 472         snd_emu10k1x_ptr_write(emu, PLAYBACK_UNKNOWN1, voice, 0);
 473         snd_emu10k1x_ptr_write(emu, PLAYBACK_UNKNOWN2, voice, 0);
 474         snd_emu10k1x_ptr_write(emu, PLAYBACK_DMA_ADDR, voice, runtime->dma_addr);
 475
 476         snd_emu10k1x_ptr_write(emu, PLAYBACK_PERIOD_SIZE, voice, frames_to_bytes(runtime, runtime->period_size)<<16);
 477
 478         return 0;
 479 }
 480
 481 /* trigger callback */
 482 static int snd_emu10k1x_pcm_trigger(struct snd_pcm_substream *substream,
 483                                     int cmd)
 484 {
 485         struct emu10k1x *emu = snd_pcm_substream_chip(substream);
 486         struct snd_pcm_runtime *runtime = substream->runtime;
 487         struct emu10k1x_pcm *epcm = runtime->private_data;
 488         int channel = epcm->voice->number;
 489         int result = 0;
 490
 491 //      snd_printk(KERN_INFO "trigger - emu10k1x = 0x%x, cmd = %i, pointer = %d\n", (int)emu, cmd, (int)substream->ops->pointer(substream));
 492
 493         switch (cmd) {
 494         case SNDRV_PCM_TRIGGER_START:
 495                 if(runtime->periods == 2)
 496                         snd_emu10k1x_intr_enable(emu, (INTE_CH_0_LOOP | INTE_CH_0_HALF_LOOP) << channel);
 497                 else
 498                         snd_emu10k1x_intr_enable(emu, INTE_CH_0_LOOP << channel);
 499                 epcm->running = 1;
 500                 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0)|(TRIGGER_CHANNEL_0<<channel));
 501                 break;
 502         case SNDRV_PCM_TRIGGER_STOP:
 503                 epcm->running = 0;
 504                 snd_emu10k1x_intr_disable(emu, (INTE_CH_0_LOOP | INTE_CH_0_HALF_LOOP) << channel);
 505                 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0) & ~(TRIGGER_CHANNEL_0<<channel));
 506                 break;
 507         default:
 508                 result = -EINVAL;
 509                 break;
 510         }
 511         return result;
 512 }
 513
 514 /* pointer callback */
 515 static snd_pcm_uframes_t
 516 snd_emu10k1x_pcm_pointer(struct snd_pcm_substream *substream)
 517 {
 518         struct emu10k1x *emu = snd_pcm_substream_chip(substream);
 519         struct snd_pcm_runtime *runtime = substream->runtime;
 520         struct emu10k1x_pcm *epcm = runtime->private_data;
 521         int channel = epcm->voice->number;
 522         snd_pcm_uframes_t ptr = 0, ptr1 = 0, ptr2= 0,ptr3 = 0,ptr4 = 0;
 523
 524         if (!epcm->running)
 525                 return 0;
 526
 527         ptr3 = snd_emu10k1x_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
 528         ptr1 = snd_emu10k1x_ptr_read(emu, PLAYBACK_POINTER, channel);
 529         ptr4 = snd_emu10k1x_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
 530
 531         if(ptr4 == 0 && ptr1 == frames_to_bytes(runtime, runtime->buffer_size))
 532                 return 0;
 533
 534         if (ptr3 != ptr4)
 535                 ptr1 = snd_emu10k1x_ptr_read(emu, PLAYBACK_POINTER, channel);
 536         ptr2 = bytes_to_frames(runtime, ptr1);
 537         ptr2 += (ptr4 >> 3) * runtime->period_size;
 538         ptr = ptr2;
 539
 540         if (ptr >= runtime->buffer_size)
 541                 ptr -= runtime->buffer_size;
 542
 543         return ptr;
 544 }
 545
 546 /* operators */
 547 static struct snd_pcm_ops snd_emu10k1x_playback_ops = {
 548         .open =        snd_emu10k1x_playback_open,
 549         .close =       snd_emu10k1x_playback_close,
 550         .ioctl =       snd_pcm_lib_ioctl,
 551         .hw_params =   snd_emu10k1x_pcm_hw_params,
 552         .hw_free =     snd_emu10k1x_pcm_hw_free,
 553         .prepare =     snd_emu10k1x_pcm_prepare,
 554         .trigger =     snd_emu10k1x_pcm_trigger,
 555         .pointer =     snd_emu10k1x_pcm_pointer,
 556 };
 557
 558 /* open_capture callback */
 559 static int snd_emu10k1x_pcm_open_capture(struct snd_pcm_substream *substream)
 560 {
 561         struct emu10k1x *chip = snd_pcm_substream_chip(substream);
 562         struct emu10k1x_pcm *epcm;
 563         struct snd_pcm_runtime *runtime = substream->runtime;
 564         int err;
 565
 566         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 567                 return err;
 568         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 569                 return err;
 570
 571         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 572         if (epcm == NULL)
 573                 return -ENOMEM;
 574
 575         epcm->emu = chip;
 576         epcm->substream = substream;
 577
 578         runtime->private_data = epcm;
 579         runtime->private_free = snd_emu10k1x_pcm_free_substream;
 580
 581         runtime->hw = snd_emu10k1x_capture_hw;
 582
 583         return 0;
 584 }
 585
 586 /* close callback */
 587 static int snd_emu10k1x_pcm_close_capture(struct snd_pcm_substream *substream)
 588 {
 589         return 0;
 590 }
 591
 592 /* hw_params callback */
 593 static int snd_emu10k1x_pcm_hw_params_capture(struct snd_pcm_substream *substream,
 594                                               struct snd_pcm_hw_params *hw_params)
 595 {
 596         struct snd_pcm_runtime *runtime = substream->runtime;
 597         struct emu10k1x_pcm *epcm = runtime->private_data;
 598
 599         if (! epcm->voice) {
 600                 if (epcm->emu->capture_voice.use)
 601                         return -EBUSY;
 602                 epcm->voice = &epcm->emu->capture_voice;
 603                 epcm->voice->epcm = epcm;
 604                 epcm->voice->use = 1;
 605         }
 606
 607         return snd_pcm_lib_malloc_pages(substream,
 608                                         params_buffer_bytes(hw_params));
 609 }
 610
 611 /* hw_free callback */
 612 static int snd_emu10k1x_pcm_hw_free_capture(struct snd_pcm_substream *substream)
 613 {
 614         struct snd_pcm_runtime *runtime = substream->runtime;
 615
 616         struct emu10k1x_pcm *epcm;
 617
 618         if (runtime->private_data == NULL)
 619                 return 0;
 620         epcm = runtime->private_data;
 621
 622         if (epcm->voice) {
 623                 epcm->voice->use = 0;
 624                 epcm->voice->epcm = NULL;
 625                 epcm->voice = NULL;
 626         }
 627
 628         return snd_pcm_lib_free_pages(substream);
 629 }
 630
 631 /* prepare capture callback */
 632 static int snd_emu10k1x_pcm_prepare_capture(struct snd_pcm_substream *substream)
 633 {
 634         struct emu10k1x *emu = snd_pcm_substream_chip(substream);
 635         struct snd_pcm_runtime *runtime = substream->runtime;
 636
 637         snd_emu10k1x_ptr_write(emu, CAPTURE_DMA_ADDR, 0, runtime->dma_addr);
 638         snd_emu10k1x_ptr_write(emu, CAPTURE_BUFFER_SIZE, 0, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
 639         snd_emu10k1x_ptr_write(emu, CAPTURE_POINTER, 0, 0);
 640         snd_emu10k1x_ptr_write(emu, CAPTURE_UNKNOWN, 0, 0);
 641
 642         return 0;
 643 }
 644
 645 /* trigger_capture callback */
 646 static int snd_emu10k1x_pcm_trigger_capture(struct snd_pcm_substream *substream,
 647                                             int cmd)
 648 {
 649         struct emu10k1x *emu = snd_pcm_substream_chip(substream);
 650         struct snd_pcm_runtime *runtime = substream->runtime;
 651         struct emu10k1x_pcm *epcm = runtime->private_data;
 652         int result = 0;
 653
 654         switch (cmd) {
 655         case SNDRV_PCM_TRIGGER_START:
 656                 snd_emu10k1x_intr_enable(emu, INTE_CAP_0_LOOP |
 657                                          INTE_CAP_0_HALF_LOOP);
 658                 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0)|TRIGGER_CAPTURE);
 659                 epcm->running = 1;
 660                 break;
 661         case SNDRV_PCM_TRIGGER_STOP:
 662                 epcm->running = 0;
 663                 snd_emu10k1x_intr_disable(emu, INTE_CAP_0_LOOP |
 664                                           INTE_CAP_0_HALF_LOOP);
 665                 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0) & ~(TRIGGER_CAPTURE));
 666                 break;
 667         default:
 668                 result = -EINVAL;
 669                 break;
 670         }
 671         return result;
 672 }
 673
 674 /* pointer_capture callback */
 675 static snd_pcm_uframes_t
 676 snd_emu10k1x_pcm_pointer_capture(struct snd_pcm_substream *substream)
 677 {
 678         struct emu10k1x *emu = snd_pcm_substream_chip(substream);
 679         struct snd_pcm_runtime *runtime = substream->runtime;
 680         struct emu10k1x_pcm *epcm = runtime->private_data;
 681         snd_pcm_uframes_t ptr;
 682
 683         if (!epcm->running)
 684                 return 0;
 685
 686         ptr = bytes_to_frames(runtime, snd_emu10k1x_ptr_read(emu, CAPTURE_POINTER, 0));
 687         if (ptr >= runtime->buffer_size)
 688                 ptr -= runtime->buffer_size;
 689
 690         return ptr;
 691 }
 692
 693 static struct snd_pcm_ops snd_emu10k1x_capture_ops = {
 694         .open =        snd_emu10k1x_pcm_open_capture,
 695         .close =       snd_emu10k1x_pcm_close_capture,
 696         .ioctl =       snd_pcm_lib_ioctl,
 697         .hw_params =   snd_emu10k1x_pcm_hw_params_capture,
 698         .hw_free =     snd_emu10k1x_pcm_hw_free_capture,
 699         .prepare =     snd_emu10k1x_pcm_prepare_capture,
 700         .trigger =     snd_emu10k1x_pcm_trigger_capture,
 701         .pointer =     snd_emu10k1x_pcm_pointer_capture,
 702 };
 703
 704 static unsigned short snd_emu10k1x_ac97_read(struct snd_ac97 *ac97,
 705                                              unsigned short reg)
 706 {
 707         struct emu10k1x *emu = ac97->private_data;
 708         unsigned long flags;
 709         unsigned short val;
 710
 711         spin_lock_irqsave(&emu->emu_lock, flags);
 712         outb(reg, emu->port + AC97ADDRESS);
 713         val = inw(emu->port + AC97DATA);
 714         spin_unlock_irqrestore(&emu->emu_lock, flags);
 715         return val;
 716 }
 717
 718 static void snd_emu10k1x_ac97_write(struct snd_ac97 *ac97,
 719                                     unsigned short reg, unsigned short val)
 720 {
 721         struct emu10k1x *emu = ac97->private_data;
 722         unsigned long flags;
 723
 724         spin_lock_irqsave(&emu->emu_lock, flags);
 725         outb(reg, emu->port + AC97ADDRESS);
 726         outw(val, emu->port + AC97DATA);
 727         spin_unlock_irqrestore(&emu->emu_lock, flags);
 728 }
 729
 730 static int snd_emu10k1x_ac97(struct emu10k1x *chip)
 731 {
 732         struct snd_ac97_bus *pbus;
 733         struct snd_ac97_template ac97;
 734         int err;
 735         static struct snd_ac97_bus_ops ops = {
 736                 .write = snd_emu10k1x_ac97_write,
 737                 .read = snd_emu10k1x_ac97_read,
 738         };
 739
 740         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
 741                 return err;
 742         pbus->no_vra = 1; /* we don't need VRA */
 743
 744         memset(&ac97, 0, sizeof(ac97));
 745         ac97.private_data = chip;
 746         ac97.scaps = AC97_SCAP_NO_SPDIF;
 747         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
 748 }
 749
 750 static int snd_emu10k1x_free(struct emu10k1x *chip)
 751 {
 752         snd_emu10k1x_ptr_write(chip, TRIGGER_CHANNEL, 0, 0);
 753         // disable interrupts
 754         outl(0, chip->port + INTE);
 755         // disable audio
 756         outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG);
 757
 758         // release the i/o port
 759         release_and_free_resource(chip->res_port);
 760
 761         // release the irq
 762         if (chip->irq >= 0)
 763                 free_irq(chip->irq, (void *)chip);
 764
 765         // release the DMA
 766         if (chip->dma_buffer.area) {
 767                 snd_dma_free_pages(&chip->dma_buffer);
 768         }
 769
 770         pci_disable_device(chip->pci);
 771
 772         // release the data
 773         kfree(chip);
 774         return 0;
 775 }
 776
 777 static int snd_emu10k1x_dev_free(struct snd_device *device)
 778 {
 779         struct emu10k1x *chip = device->device_data;
 780         return snd_emu10k1x_free(chip);
 781 }
 782
 783 static irqreturn_t snd_emu10k1x_interrupt(int irq, void *dev_id,
 784                                           struct pt_regs *regs)
 785 {
 786         unsigned int status;
 787
 788         struct emu10k1x *chip = dev_id;
 789         struct emu10k1x_voice *pvoice = chip->voices;
 790         int i;
 791         int mask;
 792
 793         status = inl(chip->port + IPR);
 794
 795         if (! status)
 796                 return IRQ_NONE;
 797
 798         // capture interrupt
 799         if (status & (IPR_CAP_0_LOOP | IPR_CAP_0_HALF_LOOP)) {
 800                 struct emu10k1x_voice *pvoice = &chip->capture_voice;
 801                 if (pvoice->use)
 802                         snd_emu10k1x_pcm_interrupt(chip, pvoice);
 803                 else
 804                         snd_emu10k1x_intr_disable(chip,
 805                                                   INTE_CAP_0_LOOP |
 806                                                   INTE_CAP_0_HALF_LOOP);
 807         }
 808
 809         mask = IPR_CH_0_LOOP|IPR_CH_0_HALF_LOOP;
 810         for (i = 0; i < 3; i++) {
 811                 if (status & mask) {
 812                         if (pvoice->use)
 813                                 snd_emu10k1x_pcm_interrupt(chip, pvoice);
 814                         else
 815                                 snd_emu10k1x_intr_disable(chip, mask);
 816                 }
 817                 pvoice++;
 818                 mask <<= 1;
 819         }
 820
 821         if (status & (IPR_MIDITRANSBUFEMPTY|IPR_MIDIRECVBUFEMPTY)) {
 822                 if (chip->midi.interrupt)
 823                         chip->midi.interrupt(chip, status);
 824                 else
 825                         snd_emu10k1x_intr_disable(chip, INTE_MIDITXENABLE|INTE_MIDIRXENABLE);
 826         }
 827
 828         // acknowledge the interrupt if necessary
 829         outl(status, chip->port + IPR);
 830
 831         // snd_printk(KERN_INFO "interrupt %08x\n", status);
 832         return IRQ_HANDLED;
 833 }
 834
 835 static int __devinit snd_emu10k1x_pcm(struct emu10k1x *emu, int device, struct snd_pcm **rpcm)
 836 {
 837         struct snd_pcm *pcm;
 838         int err;
 839         int capture = 0;
 840
 841         if (rpcm)
 842                 *rpcm = NULL;
 843         if (device == 0)
 844                 capture = 1;
 845
 846         if ((err = snd_pcm_new(emu->card, "emu10k1x", device, 1, capture, &pcm)) < 0)
 847                 return err;
 848
 849         pcm->private_data = emu;
 850
 851         switch(device) {
 852         case 0:
 853                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1x_playback_ops);
 854                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1x_capture_ops);
 855                 break;
 856         case 1:
 857         case 2:
 858                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1x_playback_ops);
 859                 break;
 860         }
 861
 862         pcm->info_flags = 0;
 863         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
 864         switch(device) {
 865         case 0:
 866                 strcpy(pcm->name, "EMU10K1X Front");
 867                 break;
 868         case 1:
 869                 strcpy(pcm->name, "EMU10K1X Rear");
 870                 break;
 871         case 2:
 872                 strcpy(pcm->name, "EMU10K1X Center/LFE");
 873                 break;
 874         }
 875         emu->pcm = pcm;
 876
 877         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
 878                                               snd_dma_pci_data(emu->pci),
 879                                               32*1024, 32*1024);
 880
 881         if (rpcm)
 882                 *rpcm = pcm;
 883
 884         return 0;
 885 }
 886
 887 static int __devinit snd_emu10k1x_create(struct snd_card *card,
 888                                          struct pci_dev *pci,
 889                                          struct emu10k1x **rchip)
 890 {
 891         struct emu10k1x *chip;
 892         int err;
 893         int ch;
 894         static struct snd_device_ops ops = {
 895                 .dev_free = snd_emu10k1x_dev_free,
 896         };
 897
 898         *rchip = NULL;
 899
 900         if ((err = pci_enable_device(pci)) < 0)
 901                 return err;
 902         if (pci_set_dma_mask(pci, DMA_28BIT_MASK) < 0 ||
 903             pci_set_consistent_dma_mask(pci, DMA_28BIT_MASK) < 0) {
 904                 snd_printk(KERN_ERR "error to set 28bit mask DMA\n");
 905                 pci_disable_device(pci);
 906                 return -ENXIO;
 907         }
 908
 909         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
 910         if (chip == NULL) {
 911                 pci_disable_device(pci);
 912                 return -ENOMEM;
 913         }
 914
 915         chip->card = card;
 916         chip->pci = pci;
 917         chip->irq = -1;
 918
 919         spin_lock_init(&chip->emu_lock);
 920         spin_lock_init(&chip->voice_lock);
 921
 922         chip->port = pci_resource_start(pci, 0);
 923         if ((chip->res_port = request_region(chip->port, 8,
 924                                              "EMU10K1X")) == NULL) {
 925                 snd_printk(KERN_ERR "emu10k1x: cannot allocate the port 0x%lx\n", chip->port);
 926                 snd_emu10k1x_free(chip);
 927                 return -EBUSY;
 928         }
 929
 930         if (request_irq(pci->irq, snd_emu10k1x_interrupt,
 931                         IRQF_DISABLED|IRQF_SHARED, "EMU10K1X",
 932                         (void *)chip)) {
 933                 snd_printk(KERN_ERR "emu10k1x: cannot grab irq %d\n", pci->irq);
 934                 snd_emu10k1x_free(chip);
 935                 return -EBUSY;
 936         }
 937         chip->irq = pci->irq;
 938
 939         if(snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
 940                                4 * 1024, &chip->dma_buffer) < 0) {
 941                 snd_emu10k1x_free(chip);
 942                 return -ENOMEM;
 943         }
 944
 945         pci_set_master(pci);
 946         /* read revision & serial */
 947         pci_read_config_byte(pci, PCI_REVISION_ID, (char *)&chip->revision);
 948         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
 949         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
 950         snd_printk(KERN_INFO "Model %04x Rev %08x Serial %08x\n", chip->model,
 951                    chip->revision, chip->serial);
 952
 953         outl(0, chip->port + INTE);
 954
 955         for(ch = 0; ch < 3; ch++) {
 956                 chip->voices[ch].emu = chip;
 957                 chip->voices[ch].number = ch;
 958         }
 959
 960         /*
 961          *  Init to 0x02109204 :
 962          *  Clock accuracy    = 0     (1000ppm)
 963          *  Sample Rate       = 2     (48kHz)
 964          *  Audio Channel     = 1     (Left of 2)
 965          *  Source Number     = 0     (Unspecified)
 966          *  Generation Status = 1     (Original for Cat Code 12)
 967          *  Cat Code          = 12    (Digital Signal Mixer)
 968          *  Mode              = 0     (Mode 0)
 969          *  Emphasis          = 0     (None)
 970          *  CP                = 1     (Copyright unasserted)
 971          *  AN                = 0     (Audio data)
 972          *  P                 = 0     (Consumer)
 973          */
 974         snd_emu10k1x_ptr_write(chip, SPCS0, 0,
 975                                chip->spdif_bits[0] =
 976                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
 977                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
 978                                SPCS_GENERATIONSTATUS | 0x00001200 |
 979                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
 980         snd_emu10k1x_ptr_write(chip, SPCS1, 0,
 981                                chip->spdif_bits[1] =
 982                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
 983                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
 984                                SPCS_GENERATIONSTATUS | 0x00001200 |
 985                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
 986         snd_emu10k1x_ptr_write(chip, SPCS2, 0,
 987                                chip->spdif_bits[2] =
 988                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
 989                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
 990                                SPCS_GENERATIONSTATUS | 0x00001200 |
 991                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
 992
 993         snd_emu10k1x_ptr_write(chip, SPDIF_SELECT, 0, 0x700); // disable SPDIF
 994         snd_emu10k1x_ptr_write(chip, ROUTING, 0, 0x1003F); // routing
 995         snd_emu10k1x_gpio_write(chip, 0x1080); // analog mode
 996
 997         outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG);
 998
 999         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
1000                                   chip, &ops)) < 0) {
1001                 snd_emu10k1x_free(chip);
1002                 return err;
1003         }
1004         *rchip = chip;
1005         return 0;
1006 }
1007
1008 static void snd_emu10k1x_proc_reg_read(struct snd_info_entry *entry,
1009                                        struct snd_info_buffer *buffer)
1010 {
1011         struct emu10k1x *emu = entry->private_data;
1012         unsigned long value,value1,value2;
1013         unsigned long flags;
1014         int i;
1015
1016         snd_iprintf(buffer, "Registers:\n\n");
1017         for(i = 0; i < 0x20; i+=4) {
1018                 spin_lock_irqsave(&emu->emu_lock, flags);
1019                 value = inl(emu->port + i);
1020                 spin_unlock_irqrestore(&emu->emu_lock, flags);
1021                 snd_iprintf(buffer, "Register %02X: %08lX\n", i, value);
1022         }
1023         snd_iprintf(buffer, "\nRegisters\n\n");
1024         for(i = 0; i <= 0x48; i++) {
1025                 value = snd_emu10k1x_ptr_read(emu, i, 0);
1026                 if(i < 0x10 || (i >= 0x20 && i < 0x40)) {
1027                         value1 = snd_emu10k1x_ptr_read(emu, i, 1);
1028                         value2 = snd_emu10k1x_ptr_read(emu, i, 2);
1029                         snd_iprintf(buffer, "%02X: %08lX %08lX %08lX\n", i, value, value1, value2);
1030                 } else {
1031                         snd_iprintf(buffer, "%02X: %08lX\n", i, value);
1032                 }
1033         }
1034 }
1035
1036 static void snd_emu10k1x_proc_reg_write(struct snd_info_entry *entry,
1037                                         struct snd_info_buffer *buffer)
1038 {
1039         struct emu10k1x *emu = entry->private_data;
1040         char line[64];
1041         unsigned int reg, channel_id , val;
1042
1043         while (!snd_info_get_line(buffer, line, sizeof(line))) {
1044                 if (sscanf(line, "%x %x %x", &reg, &channel_id, &val) != 3)
1045                         continue;
1046
1047                 if ((reg < 0x49) && (reg >=0) && (val <= 0xffffffff)
1048                     && (channel_id >=0) && (channel_id <= 2) )
1049                         snd_emu10k1x_ptr_write(emu, reg, channel_id, val);
1050         }
1051 }
1052
1053 static int __devinit snd_emu10k1x_proc_init(struct emu10k1x * emu)
1054 {
1055         struct snd_info_entry *entry;
1056
1057         if(! snd_card_proc_new(emu->card, "emu10k1x_regs", &entry)) {
1058                 snd_info_set_text_ops(entry, emu, snd_emu10k1x_proc_reg_read);
1059                 entry->c.text.write = snd_emu10k1x_proc_reg_write;
1060                 entry->mode |= S_IWUSR;
1061                 entry->private_data = emu;
1062         }
1063
1064         return 0;
1065 }
1066
1067 static int snd_emu10k1x_shared_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1068 {
1069         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1070         uinfo->count = 1;
1071         uinfo->value.integer.min = 0;
1072         uinfo->value.integer.max = 1;
1073         return 0;
1074 }
1075
1076 static int snd_emu10k1x_shared_spdif_get(struct snd_kcontrol *kcontrol,
1077                                          struct snd_ctl_elem_value *ucontrol)
1078 {
1079         struct emu10k1x *emu = snd_kcontrol_chip(kcontrol);
1080
1081         ucontrol->value.integer.value[0] = (snd_emu10k1x_ptr_read(emu, SPDIF_SELECT, 0) == 0x700) ? 0 : 1;
1082
1083         return 0;
1084 }
1085
1086 static int snd_emu10k1x_shared_spdif_put(struct snd_kcontrol *kcontrol,
1087                                          struct snd_ctl_elem_value *ucontrol)
1088 {
1089         struct emu10k1x *emu = snd_kcontrol_chip(kcontrol);
1090         unsigned int val;
1091         int change = 0;
1092
1093         val = ucontrol->value.integer.value[0] ;
1094
1095         if (val) {
1096                 // enable spdif output
1097                 snd_emu10k1x_ptr_write(emu, SPDIF_SELECT, 0, 0x000);
1098                 snd_emu10k1x_ptr_write(emu, ROUTING, 0, 0x700);
1099                 snd_emu10k1x_gpio_write(emu, 0x1000);
1100         } else {
1101                 // disable spdif output
1102                 snd_emu10k1x_ptr_write(emu, SPDIF_SELECT, 0, 0x700);
1103                 snd_emu10k1x_ptr_write(emu, ROUTING, 0, 0x1003F);
1104                 snd_emu10k1x_gpio_write(emu, 0x1080);
1105         }
1106         return change;
1107 }
1108
1109 static struct snd_kcontrol_new snd_emu10k1x_shared_spdif __devinitdata =
1110 {
1111         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
1112         .name =         "Analog/Digital Output Jack",
1113         .info =         snd_emu10k1x_shared_spdif_info,
1114         .get =          snd_emu10k1x_shared_spdif_get,
1115         .put =          snd_emu10k1x_shared_spdif_put
1116 };
1117
1118 static int snd_emu10k1x_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1119 {
1120         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1121         uinfo->count = 1;
1122         return 0;
1123 }
1124
1125 static int snd_emu10k1x_spdif_get(struct snd_kcontrol *kcontrol,
1126                                   struct snd_ctl_elem_value *ucontrol)
1127 {
1128         struct emu10k1x *emu = snd_kcontrol_chip(kcontrol);
1129         unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
1130
1131         ucontrol->value.iec958.status[0] = (emu->spdif_bits[idx] >> 0) & 0xff;
1132         ucontrol->value.iec958.status[1] = (emu->spdif_bits[idx] >> 8) & 0xff;
1133         ucontrol->value.iec958.status[2] = (emu->spdif_bits[idx] >> 16) & 0xff;
1134         ucontrol->value.iec958.status[3] = (emu->spdif_bits[idx] >> 24) & 0xff;
1135         return 0;
1136 }
1137
1138 static int snd_emu10k1x_spdif_get_mask(struct snd_kcontrol *kcontrol,
1139                                        struct snd_ctl_elem_value *ucontrol)
1140 {
1141         ucontrol->value.iec958.status[0] = 0xff;
1142         ucontrol->value.iec958.status[1] = 0xff;
1143         ucontrol->value.iec958.status[2] = 0xff;
1144         ucontrol->value.iec958.status[3] = 0xff;
1145         return 0;
1146 }
1147
1148 static int snd_emu10k1x_spdif_put(struct snd_kcontrol *kcontrol,
1149                                   struct snd_ctl_elem_value *ucontrol)
1150 {
1151         struct emu10k1x *emu = snd_kcontrol_chip(kcontrol);
1152         unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
1153         int change;
1154         unsigned int val;
1155
1156         val = (ucontrol->value.iec958.status[0] << 0) |
1157                 (ucontrol->value.iec958.status[1] << 8) |
1158                 (ucontrol->value.iec958.status[2] << 16) |
1159                 (ucontrol->value.iec958.status[3] << 24);
1160         change = val != emu->spdif_bits[idx];
1161         if (change) {
1162                 snd_emu10k1x_ptr_write(emu, SPCS0 + idx, 0, val);
1163                 emu->spdif_bits[idx] = val;
1164         }
1165         return change;
1166 }
1167
1168 static struct snd_kcontrol_new snd_emu10k1x_spdif_mask_control =
1169 {
1170         .access =       SNDRV_CTL_ELEM_ACCESS_READ,
1171         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
1172         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
1173         .count =        3,
1174         .info =         snd_emu10k1x_spdif_info,
1175         .get =          snd_emu10k1x_spdif_get_mask
1176 };
1177
1178 static struct snd_kcontrol_new snd_emu10k1x_spdif_control =
1179 {
1180         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
1181         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
1182         .count =        3,
1183         .info =         snd_emu10k1x_spdif_info,
1184         .get =          snd_emu10k1x_spdif_get,
1185         .put =          snd_emu10k1x_spdif_put
1186 };
1187
1188 static int __devinit snd_emu10k1x_mixer(struct emu10k1x *emu)
1189 {
1190         int err;
1191         struct snd_kcontrol *kctl;
1192         struct snd_card *card = emu->card;
1193
1194         if ((kctl = snd_ctl_new1(&snd_emu10k1x_spdif_mask_control, emu)) == NULL)
1195                 return -ENOMEM;
1196         if ((err = snd_ctl_add(card, kctl)))
1197                 return err;
1198         if ((kctl = snd_ctl_new1(&snd_emu10k1x_shared_spdif, emu)) == NULL)
1199                 return -ENOMEM;
1200         if ((err = snd_ctl_add(card, kctl)))
1201                 return err;
1202         if ((kctl = snd_ctl_new1(&snd_emu10k1x_spdif_control, emu)) == NULL)
1203                 return -ENOMEM;
1204         if ((err = snd_ctl_add(card, kctl)))
1205                 return err;
1206
1207         return 0;
1208 }
1209
1210 #define EMU10K1X_MIDI_MODE_INPUT        (1<<0)
1211 #define EMU10K1X_MIDI_MODE_OUTPUT       (1<<1)
1212
1213 static inline unsigned char mpu401_read(struct emu10k1x *emu, struct emu10k1x_midi *mpu, int idx)
1214 {
1215         return (unsigned char)snd_emu10k1x_ptr_read(emu, mpu->port + idx, 0);
1216 }
1217
1218 static inline void mpu401_write(struct emu10k1x *emu, struct emu10k1x_midi *mpu, int data, int idx)
1219 {
1220         snd_emu10k1x_ptr_write(emu, mpu->port + idx, 0, data);
1221 }
1222
1223 #define mpu401_write_data(emu, mpu, data)       mpu401_write(emu, mpu, data, 0)
1224 #define mpu401_write_cmd(emu, mpu, data)        mpu401_write(emu, mpu, data, 1)
1225 #define mpu401_read_data(emu, mpu)              mpu401_read(emu, mpu, 0)
1226 #define mpu401_read_stat(emu, mpu)              mpu401_read(emu, mpu, 1)
1227
1228 #define mpu401_input_avail(emu,mpu)     (!(mpu401_read_stat(emu,mpu) & 0x80))
1229 #define mpu401_output_ready(emu,mpu)    (!(mpu401_read_stat(emu,mpu) & 0x40))
1230
1231 #define MPU401_RESET            0xff
1232 #define MPU401_ENTER_UART       0x3f
1233 #define MPU401_ACK              0xfe
1234
1235 static void mpu401_clear_rx(struct emu10k1x *emu, struct emu10k1x_midi *mpu)
1236 {
1237         int timeout = 100000;
1238         for (; timeout > 0 && mpu401_input_avail(emu, mpu); timeout--)
1239                 mpu401_read_data(emu, mpu);
1240 #ifdef CONFIG_SND_DEBUG
1241         if (timeout <= 0)
1242                 snd_printk(KERN_ERR "cmd: clear rx timeout (status = 0x%x)\n", mpu401_read_stat(emu, mpu));
1243 #endif
1244 }
1245
1246 /*
1247
1248  */
1249
1250 static void do_emu10k1x_midi_interrupt(struct emu10k1x *emu,
1251                                        struct emu10k1x_midi *midi, unsigned int status)
1252 {
1253         unsigned char byte;
1254
1255         if (midi->rmidi == NULL) {
1256                 snd_emu10k1x_intr_disable(emu, midi->tx_enable | midi->rx_enable);
1257                 return;
1258         }
1259
1260         spin_lock(&midi->input_lock);
1261         if ((status & midi->ipr_rx) && mpu401_input_avail(emu, midi)) {
1262                 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
1263                         mpu401_clear_rx(emu, midi);
1264                 } else {
1265                         byte = mpu401_read_data(emu, midi);
1266                         if (midi->substream_input)
1267                                 snd_rawmidi_receive(midi->substream_input, &byte, 1);
1268                 }
1269         }
1270         spin_unlock(&midi->input_lock);
1271
1272         spin_lock(&midi->output_lock);
1273         if ((status & midi->ipr_tx) && mpu401_output_ready(emu, midi)) {
1274                 if (midi->substream_output &&
1275                     snd_rawmidi_transmit(midi->substream_output, &byte, 1) == 1) {
1276                         mpu401_write_data(emu, midi, byte);
1277                 } else {
1278                         snd_emu10k1x_intr_disable(emu, midi->tx_enable);
1279                 }
1280         }
1281         spin_unlock(&midi->output_lock);
1282 }
1283
1284 static void snd_emu10k1x_midi_interrupt(struct emu10k1x *emu, unsigned int status)
1285 {
1286         do_emu10k1x_midi_interrupt(emu, &emu->midi, status);
1287 }
1288
1289 static int snd_emu10k1x_midi_cmd(struct emu10k1x * emu,
1290                                   struct emu10k1x_midi *midi, unsigned char cmd, int ack)
1291 {
1292         unsigned long flags;
1293         int timeout, ok;
1294
1295         spin_lock_irqsave(&midi->input_lock, flags);
1296         mpu401_write_data(emu, midi, 0x00);
1297         /* mpu401_clear_rx(emu, midi); */
1298
1299         mpu401_write_cmd(emu, midi, cmd);
1300         if (ack) {
1301                 ok = 0;
1302                 timeout = 10000;
1303                 while (!ok && timeout-- > 0) {
1304                         if (mpu401_input_avail(emu, midi)) {
1305                                 if (mpu401_read_data(emu, midi) == MPU401_ACK)
1306                                         ok = 1;
1307                         }
1308                 }
1309                 if (!ok && mpu401_read_data(emu, midi) == MPU401_ACK)
1310                         ok = 1;
1311         } else {
1312                 ok = 1;
1313         }
1314         spin_unlock_irqrestore(&midi->input_lock, flags);
1315         if (!ok) {
1316                 snd_printk(KERN_ERR "midi_cmd: 0x%x failed at 0x%lx (status = 0x%x, data = 0x%x)!!!\n",
1317                            cmd, emu->port,
1318                            mpu401_read_stat(emu, midi),
1319                            mpu401_read_data(emu, midi));
1320                 return 1;
1321         }
1322         return 0;
1323 }
1324
1325 static int snd_emu10k1x_midi_input_open(struct snd_rawmidi_substream *substream)
1326 {
1327         struct emu10k1x *emu;
1328         struct emu10k1x_midi *midi = substream->rmidi->private_data;
1329         unsigned long flags;
1330
1331         emu = midi->emu;
1332         snd_assert(emu, return -ENXIO);
1333         spin_lock_irqsave(&midi->open_lock, flags);
1334         midi->midi_mode |= EMU10K1X_MIDI_MODE_INPUT;
1335         midi->substream_input = substream;
1336         if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT)) {
1337                 spin_unlock_irqrestore(&midi->open_lock, flags);
1338                 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 1))
1339                         goto error_out;
1340                 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_ENTER_UART, 1))
1341                         goto error_out;
1342         } else {
1343                 spin_unlock_irqrestore(&midi->open_lock, flags);
1344         }
1345         return 0;
1346
1347 error_out:
1348         return -EIO;
1349 }
1350
1351 static int snd_emu10k1x_midi_output_open(struct snd_rawmidi_substream *substream)
1352 {
1353         struct emu10k1x *emu;
1354         struct emu10k1x_midi *midi = substream->rmidi->private_data;
1355         unsigned long flags;
1356
1357         emu = midi->emu;
1358         snd_assert(emu, return -ENXIO);
1359         spin_lock_irqsave(&midi->open_lock, flags);
1360         midi->midi_mode |= EMU10K1X_MIDI_MODE_OUTPUT;
1361         midi->substream_output = substream;
1362         if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
1363                 spin_unlock_irqrestore(&midi->open_lock, flags);
1364                 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 1))
1365                         goto error_out;
1366                 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_ENTER_UART, 1))
1367                         goto error_out;
1368         } else {
1369                 spin_unlock_irqrestore(&midi->open_lock, flags);
1370         }
1371         return 0;
1372
1373 error_out:
1374         return -EIO;
1375 }
1376
1377 static int snd_emu10k1x_midi_input_close(struct snd_rawmidi_substream *substream)
1378 {
1379         struct emu10k1x *emu;
1380         struct emu10k1x_midi *midi = substream->rmidi->private_data;
1381         unsigned long flags;
1382         int err = 0;
1383
1384         emu = midi->emu;
1385         snd_assert(emu, return -ENXIO);
1386         spin_lock_irqsave(&midi->open_lock, flags);
1387         snd_emu10k1x_intr_disable(emu, midi->rx_enable);
1388         midi->midi_mode &= ~EMU10K1X_MIDI_MODE_INPUT;
1389         midi->substream_input = NULL;
1390         if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT)) {
1391                 spin_unlock_irqrestore(&midi->open_lock, flags);
1392                 err = snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 0);
1393         } else {
1394                 spin_unlock_irqrestore(&midi->open_lock, flags);
1395         }
1396         return err;
1397 }
1398
1399 static int snd_emu10k1x_midi_output_close(struct snd_rawmidi_substream *substream)
1400 {
1401         struct emu10k1x *emu;
1402         struct emu10k1x_midi *midi = substream->rmidi->private_data;
1403         unsigned long flags;
1404         int err = 0;
1405
1406         emu = midi->emu;
1407         snd_assert(emu, return -ENXIO);
1408         spin_lock_irqsave(&midi->open_lock, flags);
1409         snd_emu10k1x_intr_disable(emu, midi->tx_enable);
1410         midi->midi_mode &= ~EMU10K1X_MIDI_MODE_OUTPUT;
1411         midi->substream_output = NULL;
1412         if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
1413                 spin_unlock_irqrestore(&midi->open_lock, flags);
1414                 err = snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 0);
1415         } else {
1416                 spin_unlock_irqrestore(&midi->open_lock, flags);
1417         }
1418         return err;
1419 }
1420
1421 static void snd_emu10k1x_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
1422 {
1423         struct emu10k1x *emu;
1424         struct emu10k1x_midi *midi = substream->rmidi->private_data;
1425         emu = midi->emu;
1426         snd_assert(emu, return);
1427
1428         if (up)
1429                 snd_emu10k1x_intr_enable(emu, midi->rx_enable);
1430         else
1431                 snd_emu10k1x_intr_disable(emu, midi->rx_enable);
1432 }
1433
1434 static void snd_emu10k1x_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
1435 {
1436         struct emu10k1x *emu;
1437         struct emu10k1x_midi *midi = substream->rmidi->private_data;
1438         unsigned long flags;
1439
1440         emu = midi->emu;
1441         snd_assert(emu, return);
1442
1443         if (up) {
1444                 int max = 4;
1445                 unsigned char byte;
1446
1447                 /* try to send some amount of bytes here before interrupts */
1448                 spin_lock_irqsave(&midi->output_lock, flags);
1449                 while (max > 0) {
1450                         if (mpu401_output_ready(emu, midi)) {
1451                                 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT) ||
1452                                     snd_rawmidi_transmit(substream, &byte, 1) != 1) {
1453                                         /* no more data */
1454                                         spin_unlock_irqrestore(&midi->output_lock, flags);
1455                                         return;
1456                                 }
1457                                 mpu401_write_data(emu, midi, byte);
1458                                 max--;
1459                         } else {
1460                                 break;
1461                         }
1462                 }
1463                 spin_unlock_irqrestore(&midi->output_lock, flags);
1464                 snd_emu10k1x_intr_enable(emu, midi->tx_enable);
1465         } else {
1466                 snd_emu10k1x_intr_disable(emu, midi->tx_enable);
1467         }
1468 }
1469
1470 /*
1471
1472  */
1473
1474 static struct snd_rawmidi_ops snd_emu10k1x_midi_output =
1475 {
1476         .open =         snd_emu10k1x_midi_output_open,
1477         .close =        snd_emu10k1x_midi_output_close,
1478         .trigger =      snd_emu10k1x_midi_output_trigger,
1479 };
1480
1481 static struct snd_rawmidi_ops snd_emu10k1x_midi_input =
1482 {
1483         .open =         snd_emu10k1x_midi_input_open,
1484         .close =        snd_emu10k1x_midi_input_close,
1485         .trigger =      snd_emu10k1x_midi_input_trigger,
1486 };
1487
1488 static void snd_emu10k1x_midi_free(struct snd_rawmidi *rmidi)
1489 {
1490         struct emu10k1x_midi *midi = rmidi->private_data;
1491         midi->interrupt = NULL;
1492         midi->rmidi = NULL;
1493 }
1494
1495 static int __devinit emu10k1x_midi_init(struct emu10k1x *emu,
1496                                         struct emu10k1x_midi *midi, int device, char *name)
1497 {
1498         struct snd_rawmidi *rmidi;
1499         int err;
1500
1501         if ((err = snd_rawmidi_new(emu->card, name, device, 1, 1, &rmidi)) < 0)
1502                 return err;
1503         midi->emu = emu;
1504         spin_lock_init(&midi->open_lock);
1505         spin_lock_init(&midi->input_lock);
1506         spin_lock_init(&midi->output_lock);
1507         strcpy(rmidi->name, name);
1508         snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_emu10k1x_midi_output);
1509         snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_emu10k1x_midi_input);
1510         rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT |
1511                              SNDRV_RAWMIDI_INFO_INPUT |
1512                              SNDRV_RAWMIDI_INFO_DUPLEX;
1513         rmidi->private_data = midi;
1514         rmidi->private_free = snd_emu10k1x_midi_free;
1515         midi->rmidi = rmidi;
1516         return 0;
1517 }
1518
1519 static int __devinit snd_emu10k1x_midi(struct emu10k1x *emu)
1520 {
1521         struct emu10k1x_midi *midi = &emu->midi;
1522         int err;
1523
1524         if ((err = emu10k1x_midi_init(emu, midi, 0, "EMU10K1X MPU-401 (UART)")) < 0)
1525                 return err;
1526
1527         midi->tx_enable = INTE_MIDITXENABLE;
1528         midi->rx_enable = INTE_MIDIRXENABLE;
1529         midi->port = MUDATA;
1530         midi->ipr_tx = IPR_MIDITRANSBUFEMPTY;
1531         midi->ipr_rx = IPR_MIDIRECVBUFEMPTY;
1532         midi->interrupt = snd_emu10k1x_midi_interrupt;
1533         return 0;
1534 }
1535
1536 static int __devinit snd_emu10k1x_probe(struct pci_dev *pci,
1537                                         const struct pci_device_id *pci_id)
1538 {
1539         static int dev;
1540         struct snd_card *card;
1541         struct emu10k1x *chip;
1542         int err;
1543
1544         if (dev >= SNDRV_CARDS)
1545                 return -ENODEV;
1546         if (!enable[dev]) {
1547                 dev++;
1548                 return -ENOENT;
1549         }
1550
1551         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
1552         if (card == NULL)
1553                 return -ENOMEM;
1554
1555         if ((err = snd_emu10k1x_create(card, pci, &chip)) < 0) {
1556                 snd_card_free(card);
1557                 return err;
1558         }
1559
1560         if ((err = snd_emu10k1x_pcm(chip, 0, NULL)) < 0) {
1561                 snd_card_free(card);
1562                 return err;
1563         }
1564         if ((err = snd_emu10k1x_pcm(chip, 1, NULL)) < 0) {
1565                 snd_card_free(card);
1566                 return err;
1567         }
1568         if ((err = snd_emu10k1x_pcm(chip, 2, NULL)) < 0) {
1569                 snd_card_free(card);
1570                 return err;
1571         }
1572
1573         if ((err = snd_emu10k1x_ac97(chip)) < 0) {
1574                 snd_card_free(card);
1575                 return err;
1576         }
1577
1578         if ((err = snd_emu10k1x_mixer(chip)) < 0) {
1579                 snd_card_free(card);
1580                 return err;
1581         }
1582
1583         if ((err = snd_emu10k1x_midi(chip)) < 0) {
1584                 snd_card_free(card);
1585                 return err;
1586         }
1587
1588         snd_emu10k1x_proc_init(chip);
1589
1590         strcpy(card->driver, "EMU10K1X");
1591         strcpy(card->shortname, "Dell Sound Blaster Live!");
1592         sprintf(card->longname, "%s at 0x%lx irq %i",
1593                 card->shortname, chip->port, chip->irq);
1594
1595         if ((err = snd_card_register(card)) < 0) {
1596                 snd_card_free(card);
1597                 return err;
1598         }
1599
1600         pci_set_drvdata(pci, card);
1601         dev++;
1602         return 0;
1603 }
1604
1605 static void __devexit snd_emu10k1x_remove(struct pci_dev *pci)
1606 {
1607         snd_card_free(pci_get_drvdata(pci));
1608         pci_set_drvdata(pci, NULL);
1609 }
1610
1611 // PCI IDs
1612 static struct pci_device_id snd_emu10k1x_ids[] = {
1613         { 0x1102, 0x0006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },    /* Dell OEM version (EMU10K1) */
1614         { 0, }
1615 };
1616 MODULE_DEVICE_TABLE(pci, snd_emu10k1x_ids);
1617
1618 // pci_driver definition
1619 static struct pci_driver driver = {
1620         .name = "EMU10K1X",
1621         .id_table = snd_emu10k1x_ids,
1622         .probe = snd_emu10k1x_probe,
1623         .remove = __devexit_p(snd_emu10k1x_remove),
1624 };
1625
1626 // initialization of the module
1627 static int __init alsa_card_emu10k1x_init(void)
1628 {
1629         return pci_register_driver(&driver);
1630 }
1631
1632 // clean up the module
1633 static void __exit alsa_card_emu10k1x_exit(void)
1634 {
1635         pci_unregister_driver(&driver);
1636 }
1637
1638 module_init(alsa_card_emu10k1x_init)
1639 module_exit(alsa_card_emu10k1x_exit)