kernel/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 <linux/init.h>
  33 #include <linux/interrupt.h>
  34 #include <linux/pci.h>
  35 #include <linux/dma-mapping.h>
  36 #include <linux/slab.h>
  37 #include <linux/module.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 bool 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 address */
 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 channel
 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 struct emu10k1x_voice {
 199         struct emu10k1x *emu;
 200         int number;
 201         int use;
 202
 203         struct emu10k1x_pcm *epcm;
 204 };
 205
 206 struct emu10k1x_pcm {
 207         struct emu10k1x *emu;
 208         struct snd_pcm_substream *substream;
 209         struct emu10k1x_voice *voice;
 210         unsigned short running;
 211 };
 212
 213 struct emu10k1x_midi {
 214         struct emu10k1x *emu;
 215         struct snd_rawmidi *rmidi;
 216         struct snd_rawmidi_substream *substream_input;
 217         struct snd_rawmidi_substream *substream_output;
 218         unsigned int midi_mode;
 219         spinlock_t input_lock;
 220         spinlock_t output_lock;
 221         spinlock_t open_lock;
 222         int tx_enable, rx_enable;
 223         int port;
 224         int ipr_tx, ipr_rx;
 225         void (*interrupt)(struct emu10k1x *emu, unsigned int status);
 226 };
 227
 228 // definition of the chip-specific record
 229 struct emu10k1x {
 230         struct snd_card *card;
 231         struct pci_dev *pci;
 232
 233         unsigned long port;
 234         struct resource *res_port;
 235         int irq;
 236
 237         unsigned char revision;         /* chip revision */
 238         unsigned int serial;            /* serial number */
 239         unsigned short model;           /* subsystem id */
 240
 241         spinlock_t emu_lock;
 242         spinlock_t voice_lock;
 243
 244         struct snd_ac97 *ac97;
 245         struct snd_pcm *pcm;
 246
 247         struct emu10k1x_voice voices[3];
 248         struct emu10k1x_voice capture_voice;
 249         u32 spdif_bits[3]; // SPDIF out setup
 250
 251         struct snd_dma_buffer dma_buffer;
 252
 253         struct emu10k1x_midi midi;
 254 };
 255
 256 /* hardware definition */
 257 static struct snd_pcm_hardware snd_emu10k1x_playback_hw = {
 258         .info =                 (SNDRV_PCM_INFO_MMAP |
 259                                  SNDRV_PCM_INFO_INTERLEAVED |
 260                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 261                                  SNDRV_PCM_INFO_MMAP_VALID),
 262         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
 263         .rates =                SNDRV_PCM_RATE_48000,
 264         .rate_min =             48000,
 265         .rate_max =             48000,
 266         .channels_min =         2,
 267         .channels_max =         2,
 268         .buffer_bytes_max =     (32*1024),
 269         .period_bytes_min =     64,
 270         .period_bytes_max =     (16*1024),
 271         .periods_min =          2,
 272         .periods_max =          8,
 273         .fifo_size =            0,
 274 };
 275
 276 static struct snd_pcm_hardware snd_emu10k1x_capture_hw = {
 277         .info =                 (SNDRV_PCM_INFO_MMAP |
 278                                  SNDRV_PCM_INFO_INTERLEAVED |
 279                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 280                                  SNDRV_PCM_INFO_MMAP_VALID),
 281         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
 282         .rates =                SNDRV_PCM_RATE_48000,
 283         .rate_min =             48000,
 284         .rate_max =             48000,
 285         .channels_min =         2,
 286         .channels_max =         2,
 287         .buffer_bytes_max =     (32*1024),
 288         .period_bytes_min =     64,
 289         .period_bytes_max =     (16*1024),
 290         .periods_min =          2,
 291         .periods_max =          2,
 292         .fifo_size =            0,
 293 };
 294
 295 static unsigned int snd_emu10k1x_ptr_read(struct emu10k1x * emu,
 296                                           unsigned int reg,
 297                                           unsigned int chn)
 298 {
 299         unsigned long flags;
 300         unsigned int regptr, val;
 301
 302         regptr = (reg << 16) | chn;
 303
 304         spin_lock_irqsave(&emu->emu_lock, flags);
 305         outl(regptr, emu->port + PTR);
 306         val = inl(emu->port + DATA);
 307         spin_unlock_irqrestore(&emu->emu_lock, flags);
 308         return val;
 309 }
 310
 311 static void snd_emu10k1x_ptr_write(struct emu10k1x *emu,
 312                                    unsigned int reg,
 313                                    unsigned int chn,
 314                                    unsigned int data)
 315 {
 316         unsigned int regptr;
 317         unsigned long flags;
 318
 319         regptr = (reg << 16) | chn;
 320
 321         spin_lock_irqsave(&emu->emu_lock, flags);
 322         outl(regptr, emu->port + PTR);
 323         outl(data, emu->port + DATA);
 324         spin_unlock_irqrestore(&emu->emu_lock, flags);
 325 }
 326
 327 static void snd_emu10k1x_intr_enable(struct emu10k1x *emu, unsigned int intrenb)
 328 {
 329         unsigned long flags;
 330         unsigned int intr_enable;
 331
 332         spin_lock_irqsave(&emu->emu_lock, flags);
 333         intr_enable = inl(emu->port + INTE) | intrenb;
 334         outl(intr_enable, emu->port + INTE);
 335         spin_unlock_irqrestore(&emu->emu_lock, flags);
 336 }
 337
 338 static void snd_emu10k1x_intr_disable(struct emu10k1x *emu, unsigned int intrenb)
 339 {
 340         unsigned long flags;
 341         unsigned int intr_enable;
 342
 343         spin_lock_irqsave(&emu->emu_lock, flags);
 344         intr_enable = inl(emu->port + INTE) & ~intrenb;
 345         outl(intr_enable, emu->port + INTE);
 346         spin_unlock_irqrestore(&emu->emu_lock, flags);
 347 }
 348
 349 static void snd_emu10k1x_gpio_write(struct emu10k1x *emu, unsigned int value)
 350 {
 351         unsigned long flags;
 352
 353         spin_lock_irqsave(&emu->emu_lock, flags);
 354         outl(value, emu->port + GPIO);
 355         spin_unlock_irqrestore(&emu->emu_lock, flags);
 356 }
 357
 358 static void snd_emu10k1x_pcm_free_substream(struct snd_pcm_runtime *runtime)
 359 {
 360         kfree(runtime->private_data);
 361 }
 362
 363 static void snd_emu10k1x_pcm_interrupt(struct emu10k1x *emu, struct emu10k1x_voice *voice)
 364 {
 365         struct emu10k1x_pcm *epcm;
 366
 367         if ((epcm = voice->epcm) == NULL)
 368                 return;
 369         if (epcm->substream == NULL)
 370                 return;
 371 #if 0
 372         dev_info(emu->card->dev,
 373                  "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         /*
 492         dev_dbg(emu->card->dev,
 493                 "trigger - emu10k1x = 0x%x, cmd = %i, pointer = %d\n",
 494                 (int)emu, cmd, (int)substream->ops->pointer(substream));
 495         */
 496
 497         switch (cmd) {
 498         case SNDRV_PCM_TRIGGER_START:
 499                 if(runtime->periods == 2)
 500                         snd_emu10k1x_intr_enable(emu, (INTE_CH_0_LOOP | INTE_CH_0_HALF_LOOP) << channel);
 501                 else
 502                         snd_emu10k1x_intr_enable(emu, INTE_CH_0_LOOP << channel);
 503                 epcm->running = 1;
 504                 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0)|(TRIGGER_CHANNEL_0<<channel));
 505                 break;
 506         case SNDRV_PCM_TRIGGER_STOP:
 507                 epcm->running = 0;
 508                 snd_emu10k1x_intr_disable(emu, (INTE_CH_0_LOOP | INTE_CH_0_HALF_LOOP) << channel);
 509                 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0) & ~(TRIGGER_CHANNEL_0<<channel));
 510                 break;
 511         default:
 512                 result = -EINVAL;
 513                 break;
 514         }
 515         return result;
 516 }
 517
 518 /* pointer callback */
 519 static snd_pcm_uframes_t
 520 snd_emu10k1x_pcm_pointer(struct snd_pcm_substream *substream)
 521 {
 522         struct emu10k1x *emu = snd_pcm_substream_chip(substream);
 523         struct snd_pcm_runtime *runtime = substream->runtime;
 524         struct emu10k1x_pcm *epcm = runtime->private_data;
 525         int channel = epcm->voice->number;
 526         snd_pcm_uframes_t ptr = 0, ptr1 = 0, ptr2= 0,ptr3 = 0,ptr4 = 0;
 527
 528         if (!epcm->running)
 529                 return 0;
 530
 531         ptr3 = snd_emu10k1x_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
 532         ptr1 = snd_emu10k1x_ptr_read(emu, PLAYBACK_POINTER, channel);
 533         ptr4 = snd_emu10k1x_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
 534
 535         if(ptr4 == 0 && ptr1 == frames_to_bytes(runtime, runtime->buffer_size))
 536                 return 0;
 537
 538         if (ptr3 != ptr4)
 539                 ptr1 = snd_emu10k1x_ptr_read(emu, PLAYBACK_POINTER, channel);
 540         ptr2 = bytes_to_frames(runtime, ptr1);
 541         ptr2 += (ptr4 >> 3) * runtime->period_size;
 542         ptr = ptr2;
 543
 544         if (ptr >= runtime->buffer_size)
 545                 ptr -= runtime->buffer_size;
 546
 547         return ptr;
 548 }
 549
 550 /* operators */
 551 static struct snd_pcm_ops snd_emu10k1x_playback_ops = {
 552         .open =        snd_emu10k1x_playback_open,
 553         .close =       snd_emu10k1x_playback_close,
 554         .ioctl =       snd_pcm_lib_ioctl,
 555         .hw_params =   snd_emu10k1x_pcm_hw_params,
 556         .hw_free =     snd_emu10k1x_pcm_hw_free,
 557         .prepare =     snd_emu10k1x_pcm_prepare,
 558         .trigger =     snd_emu10k1x_pcm_trigger,
 559         .pointer =     snd_emu10k1x_pcm_pointer,
 560 };
 561
 562 /* open_capture callback */
 563 static int snd_emu10k1x_pcm_open_capture(struct snd_pcm_substream *substream)
 564 {
 565         struct emu10k1x *chip = snd_pcm_substream_chip(substream);
 566         struct emu10k1x_pcm *epcm;
 567         struct snd_pcm_runtime *runtime = substream->runtime;
 568         int err;
 569
 570         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 571                 return err;
 572         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 573                 return err;
 574
 575         epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
 576         if (epcm == NULL)
 577                 return -ENOMEM;
 578
 579         epcm->emu = chip;
 580         epcm->substream = substream;
 581
 582         runtime->private_data = epcm;
 583         runtime->private_free = snd_emu10k1x_pcm_free_substream;
 584
 585         runtime->hw = snd_emu10k1x_capture_hw;
 586
 587         return 0;
 588 }
 589
 590 /* close callback */
 591 static int snd_emu10k1x_pcm_close_capture(struct snd_pcm_substream *substream)
 592 {
 593         return 0;
 594 }
 595
 596 /* hw_params callback */
 597 static int snd_emu10k1x_pcm_hw_params_capture(struct snd_pcm_substream *substream,
 598                                               struct snd_pcm_hw_params *hw_params)
 599 {
 600         struct snd_pcm_runtime *runtime = substream->runtime;
 601         struct emu10k1x_pcm *epcm = runtime->private_data;
 602
 603         if (! epcm->voice) {
 604                 if (epcm->emu->capture_voice.use)
 605                         return -EBUSY;
 606                 epcm->voice = &epcm->emu->capture_voice;
 607                 epcm->voice->epcm = epcm;
 608                 epcm->voice->use = 1;
 609         }
 610
 611         return snd_pcm_lib_malloc_pages(substream,
 612                                         params_buffer_bytes(hw_params));
 613 }
 614
 615 /* hw_free callback */
 616 static int snd_emu10k1x_pcm_hw_free_capture(struct snd_pcm_substream *substream)
 617 {
 618         struct snd_pcm_runtime *runtime = substream->runtime;
 619
 620         struct emu10k1x_pcm *epcm;
 621
 622         if (runtime->private_data == NULL)
 623                 return 0;
 624         epcm = runtime->private_data;
 625
 626         if (epcm->voice) {
 627                 epcm->voice->use = 0;
 628                 epcm->voice->epcm = NULL;
 629                 epcm->voice = NULL;
 630         }
 631
 632         return snd_pcm_lib_free_pages(substream);
 633 }
 634
 635 /* prepare capture callback */
 636 static int snd_emu10k1x_pcm_prepare_capture(struct snd_pcm_substream *substream)
 637 {
 638         struct emu10k1x *emu = snd_pcm_substream_chip(substream);
 639         struct snd_pcm_runtime *runtime = substream->runtime;
 640
 641         snd_emu10k1x_ptr_write(emu, CAPTURE_DMA_ADDR, 0, runtime->dma_addr);
 642         snd_emu10k1x_ptr_write(emu, CAPTURE_BUFFER_SIZE, 0, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
 643         snd_emu10k1x_ptr_write(emu, CAPTURE_POINTER, 0, 0);
 644         snd_emu10k1x_ptr_write(emu, CAPTURE_UNKNOWN, 0, 0);
 645
 646         return 0;
 647 }
 648
 649 /* trigger_capture callback */
 650 static int snd_emu10k1x_pcm_trigger_capture(struct snd_pcm_substream *substream,
 651                                             int cmd)
 652 {
 653         struct emu10k1x *emu = snd_pcm_substream_chip(substream);
 654         struct snd_pcm_runtime *runtime = substream->runtime;
 655         struct emu10k1x_pcm *epcm = runtime->private_data;
 656         int result = 0;
 657
 658         switch (cmd) {
 659         case SNDRV_PCM_TRIGGER_START:
 660                 snd_emu10k1x_intr_enable(emu, INTE_CAP_0_LOOP |
 661                                          INTE_CAP_0_HALF_LOOP);
 662                 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0)|TRIGGER_CAPTURE);
 663                 epcm->running = 1;
 664                 break;
 665         case SNDRV_PCM_TRIGGER_STOP:
 666                 epcm->running = 0;
 667                 snd_emu10k1x_intr_disable(emu, INTE_CAP_0_LOOP |
 668                                           INTE_CAP_0_HALF_LOOP);
 669                 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0) & ~(TRIGGER_CAPTURE));
 670                 break;
 671         default:
 672                 result = -EINVAL;
 673                 break;
 674         }
 675         return result;
 676 }
 677
 678 /* pointer_capture callback */
 679 static snd_pcm_uframes_t
 680 snd_emu10k1x_pcm_pointer_capture(struct snd_pcm_substream *substream)
 681 {
 682         struct emu10k1x *emu = snd_pcm_substream_chip(substream);
 683         struct snd_pcm_runtime *runtime = substream->runtime;
 684         struct emu10k1x_pcm *epcm = runtime->private_data;
 685         snd_pcm_uframes_t ptr;
 686
 687         if (!epcm->running)
 688                 return 0;
 689
 690         ptr = bytes_to_frames(runtime, snd_emu10k1x_ptr_read(emu, CAPTURE_POINTER, 0));
 691         if (ptr >= runtime->buffer_size)
 692                 ptr -= runtime->buffer_size;
 693
 694         return ptr;
 695 }
 696
 697 static struct snd_pcm_ops snd_emu10k1x_capture_ops = {
 698         .open =        snd_emu10k1x_pcm_open_capture,
 699         .close =       snd_emu10k1x_pcm_close_capture,
 700         .ioctl =       snd_pcm_lib_ioctl,
 701         .hw_params =   snd_emu10k1x_pcm_hw_params_capture,
 702         .hw_free =     snd_emu10k1x_pcm_hw_free_capture,
 703         .prepare =     snd_emu10k1x_pcm_prepare_capture,
 704         .trigger =     snd_emu10k1x_pcm_trigger_capture,
 705         .pointer =     snd_emu10k1x_pcm_pointer_capture,
 706 };
 707
 708 static unsigned short snd_emu10k1x_ac97_read(struct snd_ac97 *ac97,
 709                                              unsigned short reg)
 710 {
 711         struct emu10k1x *emu = ac97->private_data;
 712         unsigned long flags;
 713         unsigned short val;
 714
 715         spin_lock_irqsave(&emu->emu_lock, flags);
 716         outb(reg, emu->port + AC97ADDRESS);
 717         val = inw(emu->port + AC97DATA);
 718         spin_unlock_irqrestore(&emu->emu_lock, flags);
 719         return val;
 720 }
 721
 722 static void snd_emu10k1x_ac97_write(struct snd_ac97 *ac97,
 723                                     unsigned short reg, unsigned short val)
 724 {
 725         struct emu10k1x *emu = ac97->private_data;
 726         unsigned long flags;
 727
 728         spin_lock_irqsave(&emu->emu_lock, flags);
 729         outb(reg, emu->port + AC97ADDRESS);
 730         outw(val, emu->port + AC97DATA);
 731         spin_unlock_irqrestore(&emu->emu_lock, flags);
 732 }
 733
 734 static int snd_emu10k1x_ac97(struct emu10k1x *chip)
 735 {
 736         struct snd_ac97_bus *pbus;
 737         struct snd_ac97_template ac97;
 738         int err;
 739         static struct snd_ac97_bus_ops ops = {
 740                 .write = snd_emu10k1x_ac97_write,
 741                 .read = snd_emu10k1x_ac97_read,
 742         };
 743
 744         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
 745                 return err;
 746         pbus->no_vra = 1; /* we don't need VRA */
 747
 748         memset(&ac97, 0, sizeof(ac97));
 749         ac97.private_data = chip;
 750         ac97.scaps = AC97_SCAP_NO_SPDIF;
 751         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
 752 }
 753
 754 static int snd_emu10k1x_free(struct emu10k1x *chip)
 755 {
 756         snd_emu10k1x_ptr_write(chip, TRIGGER_CHANNEL, 0, 0);
 757         // disable interrupts
 758         outl(0, chip->port + INTE);
 759         // disable audio
 760         outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG);
 761
 762         /* release the irq */
 763         if (chip->irq >= 0)
 764                 free_irq(chip->irq, chip);
 765
 766         // release the i/o port
 767         release_and_free_resource(chip->res_port);
 768
 769         // release the DMA
 770         if (chip->dma_buffer.area) {
 771                 snd_dma_free_pages(&chip->dma_buffer);
 772         }
 773
 774         pci_disable_device(chip->pci);
 775
 776         // release the data
 777         kfree(chip);
 778         return 0;
 779 }
 780
 781 static int snd_emu10k1x_dev_free(struct snd_device *device)
 782 {
 783         struct emu10k1x *chip = device->device_data;
 784         return snd_emu10k1x_free(chip);
 785 }
 786
 787 static irqreturn_t snd_emu10k1x_interrupt(int irq, void *dev_id)
 788 {
 789         unsigned int status;
 790
 791         struct emu10k1x *chip = dev_id;
 792         struct emu10k1x_voice *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                 struct emu10k1x_voice *cap_voice = &chip->capture_voice;
 804                 if (cap_voice->use)
 805                         snd_emu10k1x_pcm_interrupt(chip, cap_voice);
 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         /* dev_dbg(chip->card->dev, "interrupt %08x\n", status); */
 835         return IRQ_HANDLED;
 836 }
 837
 838 static const struct snd_pcm_chmap_elem surround_map[] = {
 839         { .channels = 2,
 840           .map = { SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
 841         { }
 842 };
 843
 844 static const struct snd_pcm_chmap_elem clfe_map[] = {
 845         { .channels = 2,
 846           .map = { SNDRV_CHMAP_FC, SNDRV_CHMAP_LFE } },
 847         { }
 848 };
 849
 850 static int snd_emu10k1x_pcm(struct emu10k1x *emu, int device)
 851 {
 852         struct snd_pcm *pcm;
 853         const struct snd_pcm_chmap_elem *map = NULL;
 854         int err;
 855         int capture = 0;
 856
 857         if (device == 0)
 858                 capture = 1;
 859
 860         if ((err = snd_pcm_new(emu->card, "emu10k1x", device, 1, capture, &pcm)) < 0)
 861                 return err;
 862
 863         pcm->private_data = emu;
 864
 865         switch(device) {
 866         case 0:
 867                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1x_playback_ops);
 868                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1x_capture_ops);
 869                 break;
 870         case 1:
 871         case 2:
 872                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1x_playback_ops);
 873                 break;
 874         }
 875
 876         pcm->info_flags = 0;
 877         switch(device) {
 878         case 0:
 879                 strcpy(pcm->name, "EMU10K1X Front");
 880                 map = snd_pcm_std_chmaps;
 881                 break;
 882         case 1:
 883                 strcpy(pcm->name, "EMU10K1X Rear");
 884                 map = surround_map;
 885                 break;
 886         case 2:
 887                 strcpy(pcm->name, "EMU10K1X Center/LFE");
 888                 map = clfe_map;
 889                 break;
 890         }
 891         emu->pcm = pcm;
 892
 893         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
 894                                               snd_dma_pci_data(emu->pci),
 895                                               32*1024, 32*1024);
 896
 897         return snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK, map, 2,
 898                                      1 << 2, NULL);
 899 }
 900
 901 static int snd_emu10k1x_create(struct snd_card *card,
 902                                struct pci_dev *pci,
 903                                struct emu10k1x **rchip)
 904 {
 905         struct emu10k1x *chip;
 906         int err;
 907         int ch;
 908         static struct snd_device_ops ops = {
 909                 .dev_free = snd_emu10k1x_dev_free,
 910         };
 911
 912         *rchip = NULL;
 913
 914         if ((err = pci_enable_device(pci)) < 0)
 915                 return err;
 916         if (pci_set_dma_mask(pci, DMA_BIT_MASK(28)) < 0 ||
 917             pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(28)) < 0) {
 918                 dev_err(card->dev, "error to set 28bit mask DMA\n");
 919                 pci_disable_device(pci);
 920                 return -ENXIO;
 921         }
 922
 923         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
 924         if (chip == NULL) {
 925                 pci_disable_device(pci);
 926                 return -ENOMEM;
 927         }
 928
 929         chip->card = card;
 930         chip->pci = pci;
 931         chip->irq = -1;
 932
 933         spin_lock_init(&chip->emu_lock);
 934         spin_lock_init(&chip->voice_lock);
 935
 936         chip->port = pci_resource_start(pci, 0);
 937         if ((chip->res_port = request_region(chip->port, 8,
 938                                              "EMU10K1X")) == NULL) {
 939                 dev_err(card->dev, "cannot allocate the port 0x%lx\n",
 940                         chip->port);
 941                 snd_emu10k1x_free(chip);
 942                 return -EBUSY;
 943         }
 944
 945         if (request_irq(pci->irq, snd_emu10k1x_interrupt,
 946                         IRQF_SHARED, KBUILD_MODNAME, chip)) {
 947                 dev_err(card->dev, "cannot grab irq %d\n", pci->irq);
 948                 snd_emu10k1x_free(chip);
 949                 return -EBUSY;
 950         }
 951         chip->irq = pci->irq;
 952
 953         if(snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
 954                                4 * 1024, &chip->dma_buffer) < 0) {
 955                 snd_emu10k1x_free(chip);
 956                 return -ENOMEM;
 957         }
 958
 959         pci_set_master(pci);
 960         /* read revision & serial */
 961         chip->revision = pci->revision;
 962         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
 963         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
 964         dev_info(card->dev, "Model %04x Rev %08x Serial %08x\n", chip->model,
 965                    chip->revision, chip->serial);
 966
 967         outl(0, chip->port + INTE);
 968
 969         for(ch = 0; ch < 3; ch++) {
 970                 chip->voices[ch].emu = chip;
 971                 chip->voices[ch].number = ch;
 972         }
 973
 974         /*
 975          *  Init to 0x02109204 :
 976          *  Clock accuracy    = 0     (1000ppm)
 977          *  Sample Rate       = 2     (48kHz)
 978          *  Audio Channel     = 1     (Left of 2)
 979          *  Source Number     = 0     (Unspecified)
 980          *  Generation Status = 1     (Original for Cat Code 12)
 981          *  Cat Code          = 12    (Digital Signal Mixer)
 982          *  Mode              = 0     (Mode 0)
 983          *  Emphasis          = 0     (None)
 984          *  CP                = 1     (Copyright unasserted)
 985          *  AN                = 0     (Audio data)
 986          *  P                 = 0     (Consumer)
 987          */
 988         snd_emu10k1x_ptr_write(chip, SPCS0, 0,
 989                                chip->spdif_bits[0] =
 990                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
 991                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
 992                                SPCS_GENERATIONSTATUS | 0x00001200 |
 993                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
 994         snd_emu10k1x_ptr_write(chip, SPCS1, 0,
 995                                chip->spdif_bits[1] =
 996                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
 997                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
 998                                SPCS_GENERATIONSTATUS | 0x00001200 |
 999                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1000         snd_emu10k1x_ptr_write(chip, SPCS2, 0,
1001                                chip->spdif_bits[2] =
1002                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1003                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1004                                SPCS_GENERATIONSTATUS | 0x00001200 |
1005                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1006
1007         snd_emu10k1x_ptr_write(chip, SPDIF_SELECT, 0, 0x700); // disable SPDIF
1008         snd_emu10k1x_ptr_write(chip, ROUTING, 0, 0x1003F); // routing
1009         snd_emu10k1x_gpio_write(chip, 0x1080); // analog mode
1010
1011         outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG);
1012
1013         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
1014                                   chip, &ops)) < 0) {
1015                 snd_emu10k1x_free(chip);
1016                 return err;
1017         }
1018         *rchip = chip;
1019         return 0;
1020 }
1021
1022 static void snd_emu10k1x_proc_reg_read(struct snd_info_entry *entry,
1023                                        struct snd_info_buffer *buffer)
1024 {
1025         struct emu10k1x *emu = entry->private_data;
1026         unsigned long value,value1,value2;
1027         unsigned long flags;
1028         int i;
1029
1030         snd_iprintf(buffer, "Registers:\n\n");
1031         for(i = 0; i < 0x20; i+=4) {
1032                 spin_lock_irqsave(&emu->emu_lock, flags);
1033                 value = inl(emu->port + i);
1034                 spin_unlock_irqrestore(&emu->emu_lock, flags);
1035                 snd_iprintf(buffer, "Register %02X: %08lX\n", i, value);
1036         }
1037         snd_iprintf(buffer, "\nRegisters\n\n");
1038         for(i = 0; i <= 0x48; i++) {
1039                 value = snd_emu10k1x_ptr_read(emu, i, 0);
1040                 if(i < 0x10 || (i >= 0x20 && i < 0x40)) {
1041                         value1 = snd_emu10k1x_ptr_read(emu, i, 1);
1042                         value2 = snd_emu10k1x_ptr_read(emu, i, 2);
1043                         snd_iprintf(buffer, "%02X: %08lX %08lX %08lX\n", i, value, value1, value2);
1044                 } else {
1045                         snd_iprintf(buffer, "%02X: %08lX\n", i, value);
1046                 }
1047         }
1048 }
1049
1050 static void snd_emu10k1x_proc_reg_write(struct snd_info_entry *entry,
1051                                         struct snd_info_buffer *buffer)
1052 {
1053         struct emu10k1x *emu = entry->private_data;
1054         char line[64];
1055         unsigned int reg, channel_id , val;
1056
1057         while (!snd_info_get_line(buffer, line, sizeof(line))) {
1058                 if (sscanf(line, "%x %x %x", &reg, &channel_id, &val) != 3)
1059                         continue;
1060
1061                 if (reg < 0x49 && val <= 0xffffffff && channel_id <= 2)
1062                         snd_emu10k1x_ptr_write(emu, reg, channel_id, val);
1063         }
1064 }
1065
1066 static int snd_emu10k1x_proc_init(struct emu10k1x *emu)
1067 {
1068         struct snd_info_entry *entry;
1069
1070         if(! snd_card_proc_new(emu->card, "emu10k1x_regs", &entry)) {
1071                 snd_info_set_text_ops(entry, emu, snd_emu10k1x_proc_reg_read);
1072                 entry->c.text.write = snd_emu10k1x_proc_reg_write;
1073                 entry->mode |= S_IWUSR;
1074                 entry->private_data = emu;
1075         }
1076
1077         return 0;
1078 }
1079
1080 #define snd_emu10k1x_shared_spdif_info  snd_ctl_boolean_mono_info
1081
1082 static int snd_emu10k1x_shared_spdif_get(struct snd_kcontrol *kcontrol,
1083                                          struct snd_ctl_elem_value *ucontrol)
1084 {
1085         struct emu10k1x *emu = snd_kcontrol_chip(kcontrol);
1086
1087         ucontrol->value.integer.value[0] = (snd_emu10k1x_ptr_read(emu, SPDIF_SELECT, 0) == 0x700) ? 0 : 1;
1088
1089         return 0;
1090 }
1091
1092 static int snd_emu10k1x_shared_spdif_put(struct snd_kcontrol *kcontrol,
1093                                          struct snd_ctl_elem_value *ucontrol)
1094 {
1095         struct emu10k1x *emu = snd_kcontrol_chip(kcontrol);
1096         unsigned int val;
1097         int change = 0;
1098
1099         val = ucontrol->value.integer.value[0] ;
1100
1101         if (val) {
1102                 // enable spdif output
1103                 snd_emu10k1x_ptr_write(emu, SPDIF_SELECT, 0, 0x000);
1104                 snd_emu10k1x_ptr_write(emu, ROUTING, 0, 0x700);
1105                 snd_emu10k1x_gpio_write(emu, 0x1000);
1106         } else {
1107                 // disable spdif output
1108                 snd_emu10k1x_ptr_write(emu, SPDIF_SELECT, 0, 0x700);
1109                 snd_emu10k1x_ptr_write(emu, ROUTING, 0, 0x1003F);
1110                 snd_emu10k1x_gpio_write(emu, 0x1080);
1111         }
1112         return change;
1113 }
1114
1115 static struct snd_kcontrol_new snd_emu10k1x_shared_spdif =
1116 {
1117         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
1118         .name =         "Analog/Digital Output Jack",
1119         .info =         snd_emu10k1x_shared_spdif_info,
1120         .get =          snd_emu10k1x_shared_spdif_get,
1121         .put =          snd_emu10k1x_shared_spdif_put
1122 };
1123
1124 static int snd_emu10k1x_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1125 {
1126         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1127         uinfo->count = 1;
1128         return 0;
1129 }
1130
1131 static int snd_emu10k1x_spdif_get(struct snd_kcontrol *kcontrol,
1132                                   struct snd_ctl_elem_value *ucontrol)
1133 {
1134         struct emu10k1x *emu = snd_kcontrol_chip(kcontrol);
1135         unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
1136
1137         ucontrol->value.iec958.status[0] = (emu->spdif_bits[idx] >> 0) & 0xff;
1138         ucontrol->value.iec958.status[1] = (emu->spdif_bits[idx] >> 8) & 0xff;
1139         ucontrol->value.iec958.status[2] = (emu->spdif_bits[idx] >> 16) & 0xff;
1140         ucontrol->value.iec958.status[3] = (emu->spdif_bits[idx] >> 24) & 0xff;
1141         return 0;
1142 }
1143
1144 static int snd_emu10k1x_spdif_get_mask(struct snd_kcontrol *kcontrol,
1145                                        struct snd_ctl_elem_value *ucontrol)
1146 {
1147         ucontrol->value.iec958.status[0] = 0xff;
1148         ucontrol->value.iec958.status[1] = 0xff;
1149         ucontrol->value.iec958.status[2] = 0xff;
1150         ucontrol->value.iec958.status[3] = 0xff;
1151         return 0;
1152 }
1153
1154 static int snd_emu10k1x_spdif_put(struct snd_kcontrol *kcontrol,
1155                                   struct snd_ctl_elem_value *ucontrol)
1156 {
1157         struct emu10k1x *emu = snd_kcontrol_chip(kcontrol);
1158         unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
1159         int change;
1160         unsigned int val;
1161
1162         val = (ucontrol->value.iec958.status[0] << 0) |
1163                 (ucontrol->value.iec958.status[1] << 8) |
1164                 (ucontrol->value.iec958.status[2] << 16) |
1165                 (ucontrol->value.iec958.status[3] << 24);
1166         change = val != emu->spdif_bits[idx];
1167         if (change) {
1168                 snd_emu10k1x_ptr_write(emu, SPCS0 + idx, 0, val);
1169                 emu->spdif_bits[idx] = val;
1170         }
1171         return change;
1172 }
1173
1174 static struct snd_kcontrol_new snd_emu10k1x_spdif_mask_control =
1175 {
1176         .access =       SNDRV_CTL_ELEM_ACCESS_READ,
1177         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
1178         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
1179         .count =        3,
1180         .info =         snd_emu10k1x_spdif_info,
1181         .get =          snd_emu10k1x_spdif_get_mask
1182 };
1183
1184 static struct snd_kcontrol_new snd_emu10k1x_spdif_control =
1185 {
1186         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
1187         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
1188         .count =        3,
1189         .info =         snd_emu10k1x_spdif_info,
1190         .get =          snd_emu10k1x_spdif_get,
1191         .put =          snd_emu10k1x_spdif_put
1192 };
1193
1194 static int snd_emu10k1x_mixer(struct emu10k1x *emu)
1195 {
1196         int err;
1197         struct snd_kcontrol *kctl;
1198         struct snd_card *card = emu->card;
1199
1200         if ((kctl = snd_ctl_new1(&snd_emu10k1x_spdif_mask_control, emu)) == NULL)
1201                 return -ENOMEM;
1202         if ((err = snd_ctl_add(card, kctl)))
1203                 return err;
1204         if ((kctl = snd_ctl_new1(&snd_emu10k1x_shared_spdif, emu)) == NULL)
1205                 return -ENOMEM;
1206         if ((err = snd_ctl_add(card, kctl)))
1207                 return err;
1208         if ((kctl = snd_ctl_new1(&snd_emu10k1x_spdif_control, emu)) == NULL)
1209                 return -ENOMEM;
1210         if ((err = snd_ctl_add(card, kctl)))
1211                 return err;
1212
1213         return 0;
1214 }
1215
1216 #define EMU10K1X_MIDI_MODE_INPUT        (1<<0)
1217 #define EMU10K1X_MIDI_MODE_OUTPUT       (1<<1)
1218
1219 static inline unsigned char mpu401_read(struct emu10k1x *emu, struct emu10k1x_midi *mpu, int idx)
1220 {
1221         return (unsigned char)snd_emu10k1x_ptr_read(emu, mpu->port + idx, 0);
1222 }
1223
1224 static inline void mpu401_write(struct emu10k1x *emu, struct emu10k1x_midi *mpu, int data, int idx)
1225 {
1226         snd_emu10k1x_ptr_write(emu, mpu->port + idx, 0, data);
1227 }
1228
1229 #define mpu401_write_data(emu, mpu, data)       mpu401_write(emu, mpu, data, 0)
1230 #define mpu401_write_cmd(emu, mpu, data)        mpu401_write(emu, mpu, data, 1)
1231 #define mpu401_read_data(emu, mpu)              mpu401_read(emu, mpu, 0)
1232 #define mpu401_read_stat(emu, mpu)              mpu401_read(emu, mpu, 1)
1233
1234 #define mpu401_input_avail(emu,mpu)     (!(mpu401_read_stat(emu,mpu) & 0x80))
1235 #define mpu401_output_ready(emu,mpu)    (!(mpu401_read_stat(emu,mpu) & 0x40))
1236
1237 #define MPU401_RESET            0xff
1238 #define MPU401_ENTER_UART       0x3f
1239 #define MPU401_ACK              0xfe
1240
1241 static void mpu401_clear_rx(struct emu10k1x *emu, struct emu10k1x_midi *mpu)
1242 {
1243         int timeout = 100000;
1244         for (; timeout > 0 && mpu401_input_avail(emu, mpu); timeout--)
1245                 mpu401_read_data(emu, mpu);
1246 #ifdef CONFIG_SND_DEBUG
1247         if (timeout <= 0)
1248                 dev_err(emu->card->dev,
1249                         "cmd: clear rx timeout (status = 0x%x)\n",
1250                         mpu401_read_stat(emu, mpu));
1251 #endif
1252 }
1253
1254 /*
1255
1256  */
1257
1258 static void do_emu10k1x_midi_interrupt(struct emu10k1x *emu,
1259                                        struct emu10k1x_midi *midi, unsigned int status)
1260 {
1261         unsigned char byte;
1262
1263         if (midi->rmidi == NULL) {
1264                 snd_emu10k1x_intr_disable(emu, midi->tx_enable | midi->rx_enable);
1265                 return;
1266         }
1267
1268         spin_lock(&midi->input_lock);
1269         if ((status & midi->ipr_rx) && mpu401_input_avail(emu, midi)) {
1270                 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
1271                         mpu401_clear_rx(emu, midi);
1272                 } else {
1273                         byte = mpu401_read_data(emu, midi);
1274                         if (midi->substream_input)
1275                                 snd_rawmidi_receive(midi->substream_input, &byte, 1);
1276                 }
1277         }
1278         spin_unlock(&midi->input_lock);
1279
1280         spin_lock(&midi->output_lock);
1281         if ((status & midi->ipr_tx) && mpu401_output_ready(emu, midi)) {
1282                 if (midi->substream_output &&
1283                     snd_rawmidi_transmit(midi->substream_output, &byte, 1) == 1) {
1284                         mpu401_write_data(emu, midi, byte);
1285                 } else {
1286                         snd_emu10k1x_intr_disable(emu, midi->tx_enable);
1287                 }
1288         }
1289         spin_unlock(&midi->output_lock);
1290 }
1291
1292 static void snd_emu10k1x_midi_interrupt(struct emu10k1x *emu, unsigned int status)
1293 {
1294         do_emu10k1x_midi_interrupt(emu, &emu->midi, status);
1295 }
1296
1297 static int snd_emu10k1x_midi_cmd(struct emu10k1x * emu,
1298                                   struct emu10k1x_midi *midi, unsigned char cmd, int ack)
1299 {
1300         unsigned long flags;
1301         int timeout, ok;
1302
1303         spin_lock_irqsave(&midi->input_lock, flags);
1304         mpu401_write_data(emu, midi, 0x00);
1305         /* mpu401_clear_rx(emu, midi); */
1306
1307         mpu401_write_cmd(emu, midi, cmd);
1308         if (ack) {
1309                 ok = 0;
1310                 timeout = 10000;
1311                 while (!ok && timeout-- > 0) {
1312                         if (mpu401_input_avail(emu, midi)) {
1313                                 if (mpu401_read_data(emu, midi) == MPU401_ACK)
1314                                         ok = 1;
1315                         }
1316                 }
1317                 if (!ok && mpu401_read_data(emu, midi) == MPU401_ACK)
1318                         ok = 1;
1319         } else {
1320                 ok = 1;
1321         }
1322         spin_unlock_irqrestore(&midi->input_lock, flags);
1323         if (!ok) {
1324                 dev_err(emu->card->dev,
1325                         "midi_cmd: 0x%x failed at 0x%lx (status = 0x%x, data = 0x%x)!!!\n",
1326                            cmd, emu->port,
1327                            mpu401_read_stat(emu, midi),
1328                            mpu401_read_data(emu, midi));
1329                 return 1;
1330         }
1331         return 0;
1332 }
1333
1334 static int snd_emu10k1x_midi_input_open(struct snd_rawmidi_substream *substream)
1335 {
1336         struct emu10k1x *emu;
1337         struct emu10k1x_midi *midi = substream->rmidi->private_data;
1338         unsigned long flags;
1339
1340         emu = midi->emu;
1341         if (snd_BUG_ON(!emu))
1342                 return -ENXIO;
1343         spin_lock_irqsave(&midi->open_lock, flags);
1344         midi->midi_mode |= EMU10K1X_MIDI_MODE_INPUT;
1345         midi->substream_input = substream;
1346         if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT)) {
1347                 spin_unlock_irqrestore(&midi->open_lock, flags);
1348                 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 1))
1349                         goto error_out;
1350                 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_ENTER_UART, 1))
1351                         goto error_out;
1352         } else {
1353                 spin_unlock_irqrestore(&midi->open_lock, flags);
1354         }
1355         return 0;
1356
1357 error_out:
1358         return -EIO;
1359 }
1360
1361 static int snd_emu10k1x_midi_output_open(struct snd_rawmidi_substream *substream)
1362 {
1363         struct emu10k1x *emu;
1364         struct emu10k1x_midi *midi = substream->rmidi->private_data;
1365         unsigned long flags;
1366
1367         emu = midi->emu;
1368         if (snd_BUG_ON(!emu))
1369                 return -ENXIO;
1370         spin_lock_irqsave(&midi->open_lock, flags);
1371         midi->midi_mode |= EMU10K1X_MIDI_MODE_OUTPUT;
1372         midi->substream_output = substream;
1373         if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
1374                 spin_unlock_irqrestore(&midi->open_lock, flags);
1375                 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 1))
1376                         goto error_out;
1377                 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_ENTER_UART, 1))
1378                         goto error_out;
1379         } else {
1380                 spin_unlock_irqrestore(&midi->open_lock, flags);
1381         }
1382         return 0;
1383
1384 error_out:
1385         return -EIO;
1386 }
1387
1388 static int snd_emu10k1x_midi_input_close(struct snd_rawmidi_substream *substream)
1389 {
1390         struct emu10k1x *emu;
1391         struct emu10k1x_midi *midi = substream->rmidi->private_data;
1392         unsigned long flags;
1393         int err = 0;
1394
1395         emu = midi->emu;
1396         if (snd_BUG_ON(!emu))
1397                 return -ENXIO;
1398         spin_lock_irqsave(&midi->open_lock, flags);
1399         snd_emu10k1x_intr_disable(emu, midi->rx_enable);
1400         midi->midi_mode &= ~EMU10K1X_MIDI_MODE_INPUT;
1401         midi->substream_input = NULL;
1402         if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT)) {
1403                 spin_unlock_irqrestore(&midi->open_lock, flags);
1404                 err = snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 0);
1405         } else {
1406                 spin_unlock_irqrestore(&midi->open_lock, flags);
1407         }
1408         return err;
1409 }
1410
1411 static int snd_emu10k1x_midi_output_close(struct snd_rawmidi_substream *substream)
1412 {
1413         struct emu10k1x *emu;
1414         struct emu10k1x_midi *midi = substream->rmidi->private_data;
1415         unsigned long flags;
1416         int err = 0;
1417
1418         emu = midi->emu;
1419         if (snd_BUG_ON(!emu))
1420                 return -ENXIO;
1421         spin_lock_irqsave(&midi->open_lock, flags);
1422         snd_emu10k1x_intr_disable(emu, midi->tx_enable);
1423         midi->midi_mode &= ~EMU10K1X_MIDI_MODE_OUTPUT;
1424         midi->substream_output = NULL;
1425         if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
1426                 spin_unlock_irqrestore(&midi->open_lock, flags);
1427                 err = snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 0);
1428         } else {
1429                 spin_unlock_irqrestore(&midi->open_lock, flags);
1430         }
1431         return err;
1432 }
1433
1434 static void snd_emu10k1x_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
1435 {
1436         struct emu10k1x *emu;
1437         struct emu10k1x_midi *midi = substream->rmidi->private_data;
1438         emu = midi->emu;
1439         if (snd_BUG_ON(!emu))
1440                 return;
1441
1442         if (up)
1443                 snd_emu10k1x_intr_enable(emu, midi->rx_enable);
1444         else
1445                 snd_emu10k1x_intr_disable(emu, midi->rx_enable);
1446 }
1447
1448 static void snd_emu10k1x_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
1449 {
1450         struct emu10k1x *emu;
1451         struct emu10k1x_midi *midi = substream->rmidi->private_data;
1452         unsigned long flags;
1453
1454         emu = midi->emu;
1455         if (snd_BUG_ON(!emu))
1456                 return;
1457
1458         if (up) {
1459                 int max = 4;
1460                 unsigned char byte;
1461
1462                 /* try to send some amount of bytes here before interrupts */
1463                 spin_lock_irqsave(&midi->output_lock, flags);
1464                 while (max > 0) {
1465                         if (mpu401_output_ready(emu, midi)) {
1466                                 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT) ||
1467                                     snd_rawmidi_transmit(substream, &byte, 1) != 1) {
1468                                         /* no more data */
1469                                         spin_unlock_irqrestore(&midi->output_lock, flags);
1470                                         return;
1471                                 }
1472                                 mpu401_write_data(emu, midi, byte);
1473                                 max--;
1474                         } else {
1475                                 break;
1476                         }
1477                 }
1478                 spin_unlock_irqrestore(&midi->output_lock, flags);
1479                 snd_emu10k1x_intr_enable(emu, midi->tx_enable);
1480         } else {
1481                 snd_emu10k1x_intr_disable(emu, midi->tx_enable);
1482         }
1483 }
1484
1485 /*
1486
1487  */
1488
1489 static struct snd_rawmidi_ops snd_emu10k1x_midi_output =
1490 {
1491         .open =         snd_emu10k1x_midi_output_open,
1492         .close =        snd_emu10k1x_midi_output_close,
1493         .trigger =      snd_emu10k1x_midi_output_trigger,
1494 };
1495
1496 static struct snd_rawmidi_ops snd_emu10k1x_midi_input =
1497 {
1498         .open =         snd_emu10k1x_midi_input_open,
1499         .close =        snd_emu10k1x_midi_input_close,
1500         .trigger =      snd_emu10k1x_midi_input_trigger,
1501 };
1502
1503 static void snd_emu10k1x_midi_free(struct snd_rawmidi *rmidi)
1504 {
1505         struct emu10k1x_midi *midi = rmidi->private_data;
1506         midi->interrupt = NULL;
1507         midi->rmidi = NULL;
1508 }
1509
1510 static int emu10k1x_midi_init(struct emu10k1x *emu,
1511                               struct emu10k1x_midi *midi, int device,
1512                               char *name)
1513 {
1514         struct snd_rawmidi *rmidi;
1515         int err;
1516
1517         if ((err = snd_rawmidi_new(emu->card, name, device, 1, 1, &rmidi)) < 0)
1518                 return err;
1519         midi->emu = emu;
1520         spin_lock_init(&midi->open_lock);
1521         spin_lock_init(&midi->input_lock);
1522         spin_lock_init(&midi->output_lock);
1523         strcpy(rmidi->name, name);
1524         snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_emu10k1x_midi_output);
1525         snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_emu10k1x_midi_input);
1526         rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT |
1527                              SNDRV_RAWMIDI_INFO_INPUT |
1528                              SNDRV_RAWMIDI_INFO_DUPLEX;
1529         rmidi->private_data = midi;
1530         rmidi->private_free = snd_emu10k1x_midi_free;
1531         midi->rmidi = rmidi;
1532         return 0;
1533 }
1534
1535 static int snd_emu10k1x_midi(struct emu10k1x *emu)
1536 {
1537         struct emu10k1x_midi *midi = &emu->midi;
1538         int err;
1539
1540         if ((err = emu10k1x_midi_init(emu, midi, 0, "EMU10K1X MPU-401 (UART)")) < 0)
1541                 return err;
1542
1543         midi->tx_enable = INTE_MIDITXENABLE;
1544         midi->rx_enable = INTE_MIDIRXENABLE;
1545         midi->port = MUDATA;
1546         midi->ipr_tx = IPR_MIDITRANSBUFEMPTY;
1547         midi->ipr_rx = IPR_MIDIRECVBUFEMPTY;
1548         midi->interrupt = snd_emu10k1x_midi_interrupt;
1549         return 0;
1550 }
1551
1552 static int snd_emu10k1x_probe(struct pci_dev *pci,
1553                               const struct pci_device_id *pci_id)
1554 {
1555         static int dev;
1556         struct snd_card *card;
1557         struct emu10k1x *chip;
1558         int err;
1559
1560         if (dev >= SNDRV_CARDS)
1561                 return -ENODEV;
1562         if (!enable[dev]) {
1563                 dev++;
1564                 return -ENOENT;
1565         }
1566
1567         err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1568                            0, &card);
1569         if (err < 0)
1570                 return err;
1571
1572         if ((err = snd_emu10k1x_create(card, pci, &chip)) < 0) {
1573                 snd_card_free(card);
1574                 return err;
1575         }
1576
1577         if ((err = snd_emu10k1x_pcm(chip, 0)) < 0) {
1578                 snd_card_free(card);
1579                 return err;
1580         }
1581         if ((err = snd_emu10k1x_pcm(chip, 1)) < 0) {
1582                 snd_card_free(card);
1583                 return err;
1584         }
1585         if ((err = snd_emu10k1x_pcm(chip, 2)) < 0) {
1586                 snd_card_free(card);
1587                 return err;
1588         }
1589
1590         if ((err = snd_emu10k1x_ac97(chip)) < 0) {
1591                 snd_card_free(card);
1592                 return err;
1593         }
1594
1595         if ((err = snd_emu10k1x_mixer(chip)) < 0) {
1596                 snd_card_free(card);
1597                 return err;
1598         }
1599
1600         if ((err = snd_emu10k1x_midi(chip)) < 0) {
1601                 snd_card_free(card);
1602                 return err;
1603         }
1604
1605         snd_emu10k1x_proc_init(chip);
1606
1607         strcpy(card->driver, "EMU10K1X");
1608         strcpy(card->shortname, "Dell Sound Blaster Live!");
1609         sprintf(card->longname, "%s at 0x%lx irq %i",
1610                 card->shortname, chip->port, chip->irq);
1611
1612         if ((err = snd_card_register(card)) < 0) {
1613                 snd_card_free(card);
1614                 return err;
1615         }
1616
1617         pci_set_drvdata(pci, card);
1618         dev++;
1619         return 0;
1620 }
1621
1622 static void snd_emu10k1x_remove(struct pci_dev *pci)
1623 {
1624         snd_card_free(pci_get_drvdata(pci));
1625 }
1626
1627 // PCI IDs
1628 static const struct pci_device_id snd_emu10k1x_ids[] = {
1629         { PCI_VDEVICE(CREATIVE, 0x0006), 0 },   /* Dell OEM version (EMU10K1) */
1630         { 0, }
1631 };
1632 MODULE_DEVICE_TABLE(pci, snd_emu10k1x_ids);
1633
1634 // pci_driver definition
1635 static struct pci_driver emu10k1x_driver = {
1636         .name = KBUILD_MODNAME,
1637         .id_table = snd_emu10k1x_ids,
1638         .probe = snd_emu10k1x_probe,
1639         .remove = snd_emu10k1x_remove,
1640 };
1641
1642 module_pci_driver(emu10k1x_driver);