sound/pci/emu10k1/emu10k1x.c

   1 /*
   2  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
   3  *  Driver EMU10K1X chips
   4  *
   5  *  Parts of this code were adapted from audigyls.c driver which is
   6  *  Copyright (c) by James Courtier-Dutton <James@superbug.demon.co.uk>
   7  *
   8  *  BUGS:
   9  *    --
  10  *
  11  *  TODO:
  12  *
  13  *  Chips (SB0200 model):
  14  *    - EMU10K1X-DBQ
  15  *    - STAC 9708T
  16  *
  17  *   This program is free software; you can redistribute it and/or modify
  18  *   it under the terms of the GNU General Public License as published by
  19  *   the Free Software Foundation; either version 2 of the License, or
  20  *   (at your option) any later version.
  21  *
  22  *   This program is distributed in the hope that it will be useful,
  23  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  24  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25  *   GNU General Public License for more details.
  26  *
  27  *   You should have received a copy of the GNU General Public License
  28  *   along with this program; if not, write to the Free Software
  29  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  30  *
  31  */
  32 #include <sound/driver.h>
  33 #include <linux/init.h>
  34 #include <linux/interrupt.h>
  35 #include <linux/pci.h>
  36 #include <linux/slab.h>
  37 #include <linux/moduleparam.h>
  38 #include <sound/core.h>
  39 #include <sound/initval.h>
  40 #include <sound/pcm.h>
  41 #include <sound/ac97_codec.h>
  42 #include <sound/info.h>
  43 #include <sound/rawmidi.h>
  44
  45 MODULE_AUTHOR("Francisco Moraes <fmoraes@nc.rr.com>");
  46 MODULE_DESCRIPTION("EMU10K1X");
  47 MODULE_LICENSE("GPL");
  48 MODULE_SUPPORTED_DEVICE("{{Dell Creative Labs,SB Live!}");
  49
  50 // module parameters (see "Module Parameters")
  51 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
  52 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
  53 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
  54
  55 module_param_array(index, int, NULL, 0444);
  56 MODULE_PARM_DESC(index, "Index value for the EMU10K1X soundcard.");
  57 module_param_array(id, charp, NULL, 0444);
  58 MODULE_PARM_DESC(id, "ID string for the EMU10K1X soundcard.");
  59 module_param_array(enable, bool, NULL, 0444);
  60 MODULE_PARM_DESC(enable, "Enable the EMU10K1X soundcard.");
  61
  62
  63 // some definitions were borrowed from emu10k1 driver as they seem to be the same
  64 /************************************************************************************************/
  65 /* PCI function 0 registers, address = <val> + PCIBASE0                                         */
  66 /************************************************************************************************/
  67
  68 #define PTR                     0x00            /* Indexed register set pointer register        */
  69                                                 /* NOTE: The CHANNELNUM and ADDRESS words can   */
  70                                                 /* be modified independently of each other.     */
  71
  72 #define DATA                    0x04            /* Indexed register set data register           */
  73
  74 #define IPR                     0x08            /* Global interrupt pending register            */
  75                                                 /* Clear pending interrupts by writing a 1 to   */
  76                                                 /* the relevant bits and zero to the other bits */
  77 #define IPR_MIDITRANSBUFEMPTY   0x00000001      /* MIDI UART transmit buffer empty              */
  78 #define IPR_MIDIRECVBUFEMPTY    0x00000002      /* MIDI UART receive buffer empty               */
  79 #define IPR_CH_0_LOOP           0x00000800      /* Channel 0 loop                               */
  80 #define IPR_CH_0_HALF_LOOP      0x00000100      /* Channel 0 half loop                          */
  81 #define IPR_CAP_0_LOOP          0x00080000      /* Channel capture loop                         */
  82 #define IPR_CAP_0_HALF_LOOP     0x00010000      /* Channel capture half loop                    */
  83
  84 #define INTE                    0x0c            /* Interrupt enable register                    */
  85 #define INTE_MIDITXENABLE       0x00000001      /* Enable MIDI transmit-buffer-empty interrupts */
  86 #define INTE_MIDIRXENABLE       0x00000002      /* Enable MIDI receive-buffer-empty interrupts  */
  87 #define INTE_CH_0_LOOP          0x00000800      /* Channel 0 loop                               */
  88 #define INTE_CH_0_HALF_LOOP     0x00000100      /* Channel 0 half loop                          */
  89 #define INTE_CAP_0_LOOP         0x00080000      /* Channel capture loop                         */
  90 #define INTE_CAP_0_HALF_LOOP    0x00010000      /* Channel capture half loop                    */
  91
  92 #define HCFG                    0x14            /* Hardware config register                     */
  93
  94 #define HCFG_LOCKSOUNDCACHE     0x00000008      /* 1 = Cancel bustmaster accesses to soundcache */
  95                                                 /* NOTE: This should generally never be used.   */
  96 #define HCFG_AUDIOENABLE        0x00000001      /* 0 = CODECs transmit zero-valued samples      */
  97                                                 /* Should be set to 1 when the EMU10K1 is       */
  98                                                 /* completely initialized.                      */
  99 #define GPIO                    0x18            /* Defaults: 00001080-Analog, 00001000-SPDIF.   */
 100
 101
 102 #define AC97DATA                0x1c            /* AC97 register set data register (16 bit)     */
 103
 104 #define AC97ADDRESS             0x1e            /* AC97 register set address register (8 bit)   */
 105
 106 /********************************************************************************************************/
 107 /* Emu10k1x pointer-offset register set, accessed through the PTR and DATA registers                    */
 108 /********************************************************************************************************/
 109 #define PLAYBACK_LIST_ADDR      0x00            /* Base DMA address of a list of pointers to each period/size */
 110                                                 /* One list entry: 4 bytes for DMA address,
 111                                                  * 4 bytes for period_size << 16.
 112                                                  * One list entry is 8 bytes long.
 113                                                  * One list entry for each period in the buffer.
 114                                                  */
 115 #define PLAYBACK_LIST_SIZE      0x01            /* Size of list in bytes << 16. E.g. 8 periods -> 0x00380000  */
 116 #define PLAYBACK_LIST_PTR       0x02            /* Pointer to the current period being played */
 117 #define PLAYBACK_DMA_ADDR       0x04            /* Playback DMA addresss */
 118 #define PLAYBACK_PERIOD_SIZE    0x05            /* Playback period size */
 119 #define PLAYBACK_POINTER        0x06            /* Playback period pointer. Sample currently in DAC */
 120 #define PLAYBACK_UNKNOWN1       0x07
 121 #define PLAYBACK_UNKNOWN2       0x08
 122
 123 /* Only one capture channel supported */
 124 #define CAPTURE_DMA_ADDR        0x10            /* Capture DMA address */
 125 #define CAPTURE_BUFFER_SIZE     0x11            /* Capture buffer size */
 126 #define CAPTURE_POINTER         0x12            /* Capture buffer pointer. Sample currently in ADC */
 127 #define CAPTURE_UNKNOWN         0x13
 128
 129 /* From 0x20 - 0x3f, last samples played on each channel */
 130
 131 #define TRIGGER_CHANNEL         0x40            /* Trigger channel playback                     */
 132 #define TRIGGER_CHANNEL_0       0x00000001      /* Trigger channel 0                            */
 133 #define TRIGGER_CHANNEL_1       0x00000002      /* Trigger channel 1                            */
 134 #define TRIGGER_CHANNEL_2       0x00000004      /* Trigger channel 2                            */
 135 #define TRIGGER_CAPTURE         0x00000100      /* Trigger capture channel                      */
 136
 137 #define ROUTING                 0x41            /* Setup sound routing ?                        */
 138 #define ROUTING_FRONT_LEFT      0x00000001
 139 #define ROUTING_FRONT_RIGHT     0x00000002
 140 #define ROUTING_REAR_LEFT       0x00000004
 141 #define ROUTING_REAR_RIGHT      0x00000008
 142 #define ROUTING_CENTER_LFE      0x00010000
 143
 144 #define SPCS0                   0x42            /* SPDIF output Channel Status 0 register       */
 145
 146 #define SPCS1                   0x43            /* SPDIF output Channel Status 1 register       */
 147
 148 #define SPCS2                   0x44            /* SPDIF output Channel Status 2 register       */
 149
 150 #define SPCS_CLKACCYMASK        0x30000000      /* Clock accuracy                               */
 151 #define SPCS_CLKACCY_1000PPM    0x00000000      /* 1000 parts per million                       */
 152 #define SPCS_CLKACCY_50PPM      0x10000000      /* 50 parts per million                         */
 153 #define SPCS_CLKACCY_VARIABLE   0x20000000      /* Variable accuracy                            */
 154 #define SPCS_SAMPLERATEMASK     0x0f000000      /* Sample rate                                  */
 155 #define SPCS_SAMPLERATE_44      0x00000000      /* 44.1kHz sample rate                          */
 156 #define SPCS_SAMPLERATE_48      0x02000000      /* 48kHz sample rate                            */
 157 #define SPCS_SAMPLERATE_32      0x03000000      /* 32kHz sample rate                            */
 158 #define SPCS_CHANNELNUMMASK     0x00f00000      /* Channel number                               */
 159 #define SPCS_CHANNELNUM_UNSPEC  0x00000000      /* Unspecified channel number                   */
 160 #define SPCS_CHANNELNUM_LEFT    0x00100000      /* Left channel                                 */
 161 #define SPCS_CHANNELNUM_RIGHT   0x00200000      /* Right channel                                */
 162 #define SPCS_SOURCENUMMASK      0x000f0000      /* Source number                                */
 163 #define SPCS_SOURCENUM_UNSPEC   0x00000000      /* Unspecified source number                    */
 164 #define SPCS_GENERATIONSTATUS   0x00008000      /* Originality flag (see IEC-958 spec)          */
 165 #define SPCS_CATEGORYCODEMASK   0x00007f00      /* Category code (see IEC-958 spec)             */
 166 #define SPCS_MODEMASK           0x000000c0      /* Mode (see IEC-958 spec)                      */
 167 #define SPCS_EMPHASISMASK       0x00000038      /* Emphasis                                     */
 168 #define SPCS_EMPHASIS_NONE      0x00000000      /* No emphasis                                  */
 169 #define SPCS_EMPHASIS_50_15     0x00000008      /* 50/15 usec 2 channel                         */
 170 #define SPCS_COPYRIGHT          0x00000004      /* Copyright asserted flag -- do not modify     */
 171 #define SPCS_NOTAUDIODATA       0x00000002      /* 0 = Digital audio, 1 = not audio             */
 172 #define SPCS_PROFESSIONAL       0x00000001      /* 0 = Consumer (IEC-958), 1 = pro (AES3-1992)  */
 173
 174 #define SPDIF_SELECT            0x45            /* Enables SPDIF or Analogue outputs 0-Analogue, 0x700-SPDIF */
 175
 176 /* This is the MPU port on the card                                                             */
 177 #define MUDATA          0x47
 178 #define MUCMD           0x48
 179 #define MUSTAT          MUCMD
 180
 181 /* From 0x50 - 0x5f, last samples captured */
 182
 183 /**
 184  * The hardware has 3 channels for playback and 1 for capture.
 185  *  - channel 0 is the front channel
 186  *  - channel 1 is the rear channel
 187  *  - channel 2 is the center/lfe chanel
 188  * Volume is controlled by the AC97 for the front and rear channels by
 189  * the PCM Playback Volume, Sigmatel Surround Playback Volume and
 190  * Surround Playback Volume. The Sigmatel 4-Speaker Stereo switch affects
 191  * the front/rear channel mixing in the REAR OUT jack. When using the
 192  * 4-Speaker Stereo, both front and rear channels will be mixed in the
 193  * REAR OUT.
 194  * The center/lfe channel has no volume control and cannot be muted during
 195  * playback.
 196  */
 197
 198 typedef struct snd_emu10k1x_voice emu10k1x_voice_t;
 199 typedef struct snd_emu10k1x emu10k1x_t;
 200 typedef struct snd_emu10k1x_pcm emu10k1x_pcm_t;
 201
 202 struct snd_emu10k1x_voice {
 203         emu10k1x_t *emu;
 204         int number;
 205         int use;
 206
 207         emu10k1x_pcm_t *epcm;
 208 };
 209
 210 struct snd_emu10k1x_pcm {
 211         emu10k1x_t *emu;
 212         snd_pcm_substream_t *substream;
 213         emu10k1x_voice_t *voice;
 214         unsigned short running;
 215 };
 216
 217 typedef struct {
 218         struct snd_emu10k1x *emu;
 219         snd_rawmidi_t *rmidi;
 220         snd_rawmidi_substream_t *substream_input;
 221         snd_rawmidi_substream_t *substream_output;
 222         unsigned int midi_mode;
 223         spinlock_t input_lock;
 224         spinlock_t output_lock;
 225         spinlock_t open_lock;
 226         int tx_enable, rx_enable;
 227         int port;
 228         int ipr_tx, ipr_rx;
 229         void (*interrupt)(emu10k1x_t *emu, unsigned int status);
 230 } emu10k1x_midi_t;
 231
 232 // definition of the chip-specific record
 233 struct snd_emu10k1x {
 234         snd_card_t *card;
 235         struct pci_dev *pci;
 236
 237         unsigned long port;
 238         struct resource *res_port;
 239         int irq;
 240
 241         unsigned int revision;          /* chip revision */
 242         unsigned int serial;            /* serial number */
 243         unsigned short model;           /* subsystem id */
 244
 245         spinlock_t emu_lock;
 246         spinlock_t voice_lock;
 247
 248         ac97_t *ac97;
 249         snd_pcm_t *pcm;
 250
 251         emu10k1x_voice_t voices[3];
 252         emu10k1x_voice_t capture_voice;
 253         u32 spdif_bits[3]; // SPDIF out setup
 254
 255         struct snd_dma_buffer dma_buffer;
 256
 257         emu10k1x_midi_t midi;
 258 };
 259
 260 /* hardware definition */
 261 static snd_pcm_hardware_t snd_emu10k1x_playback_hw = {
 262         .info =                 (SNDRV_PCM_INFO_MMAP |
 263                                  SNDRV_PCM_INFO_INTERLEAVED |
 264                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 265                                  SNDRV_PCM_INFO_MMAP_VALID),
 266         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
 267         .rates =                SNDRV_PCM_RATE_48000,
 268         .rate_min =             48000,
 269         .rate_max =             48000,
 270         .channels_min =         2,
 271         .channels_max =         2,
 272         .buffer_bytes_max =     (32*1024),
 273         .period_bytes_min =     64,
 274         .period_bytes_max =     (16*1024),
 275         .periods_min =          2,
 276         .periods_max =          8,
 277         .fifo_size =            0,
 278 };
 279
 280 static snd_pcm_hardware_t snd_emu10k1x_capture_hw = {
 281         .info =                 (SNDRV_PCM_INFO_MMAP |
 282                                  SNDRV_PCM_INFO_INTERLEAVED |
 283                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 284                                  SNDRV_PCM_INFO_MMAP_VALID),
 285         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
 286         .rates =                SNDRV_PCM_RATE_48000,
 287         .rate_min =             48000,
 288         .rate_max =             48000,
 289         .channels_min =         2,
 290         .channels_max =         2,
 291         .buffer_bytes_max =     (32*1024),
 292         .period_bytes_min =     64,
 293         .period_bytes_max =     (16*1024),
 294         .periods_min =          2,
 295         .periods_max =          2,
 296         .fifo_size =            0,
 297 };
 298
 299 static unsigned int snd_emu10k1x_ptr_read(emu10k1x_t * emu,
 300                                           unsigned int reg,
 301                                           unsigned int chn)
 302 {
 303         unsigned long flags;
 304         unsigned int regptr, val;
 305
 306         regptr = (reg << 16) | chn;
 307
 308         spin_lock_irqsave(&emu->emu_lock, flags);
 309         outl(regptr, emu->port + PTR);
 310         val = inl(emu->port + DATA);
 311         spin_unlock_irqrestore(&emu->emu_lock, flags);
 312         return val;
 313 }
 314
 315 static void snd_emu10k1x_ptr_write(emu10k1x_t *emu,
 316                                    unsigned int reg,
 317                                    unsigned int chn,
 318                                    unsigned int data)
 319 {
 320         unsigned int regptr;
 321         unsigned long flags;
 322
 323         regptr = (reg << 16) | chn;
 324
 325         spin_lock_irqsave(&emu->emu_lock, flags);
 326         outl(regptr, emu->port + PTR);
 327         outl(data, emu->port + DATA);
 328         spin_unlock_irqrestore(&emu->emu_lock, flags);
 329 }
 330
 331 static void snd_emu10k1x_intr_enable(emu10k1x_t *emu, unsigned int intrenb)
 332 {
 333         unsigned long flags;
 334         unsigned int enable;
 335
 336         spin_lock_irqsave(&emu->emu_lock, flags);
 337         enable = inl(emu->port + INTE) | intrenb;
 338         outl(enable, emu->port + INTE);
 339         spin_unlock_irqrestore(&emu->emu_lock, flags);
 340 }
 341
 342 static void snd_emu10k1x_intr_disable(emu10k1x_t *emu, unsigned int intrenb)
 343 {
 344         unsigned long flags;
 345         unsigned int enable;
 346
 347         spin_lock_irqsave(&emu->emu_lock, flags);
 348         enable = inl(emu->port + INTE) & ~intrenb;
 349         outl(enable, emu->port + INTE);
 350         spin_unlock_irqrestore(&emu->emu_lock, flags);
 351 }
 352
 353 static void snd_emu10k1x_gpio_write(emu10k1x_t *emu, unsigned int value)
 354 {
 355         unsigned long flags;
 356
 357         spin_lock_irqsave(&emu->emu_lock, flags);
 358         outl(value, emu->port + GPIO);
 359         spin_unlock_irqrestore(&emu->emu_lock, flags);
 360 }
 361
 362 static void snd_emu10k1x_pcm_free_substream(snd_pcm_runtime_t *runtime)
 363 {
 364         emu10k1x_pcm_t *epcm = runtime->private_data;
 365
 366         if (epcm)
 367                 kfree(epcm);
 368 }
 369
 370 static void snd_emu10k1x_pcm_interrupt(emu10k1x_t *emu, emu10k1x_voice_t *voice)
 371 {
 372         emu10k1x_pcm_t *epcm;
 373
 374         if ((epcm = voice->epcm) == NULL)
 375                 return;
 376         if (epcm->substream == NULL)
 377                 return;
 378 #if 0
 379         snd_printk(KERN_INFO "IRQ: position = 0x%x, period = 0x%x, size = 0x%x\n",
 380                    epcm->substream->ops->pointer(epcm->substream),
 381                    snd_pcm_lib_period_bytes(epcm->substream),
 382                    snd_pcm_lib_buffer_bytes(epcm->substream));
 383 #endif
 384         snd_pcm_period_elapsed(epcm->substream);
 385 }
 386
 387 /* open callback */
 388 static int snd_emu10k1x_playback_open(snd_pcm_substream_t *substream)
 389 {
 390         emu10k1x_t *chip = snd_pcm_substream_chip(substream);
 391         emu10k1x_pcm_t *epcm;
 392         snd_pcm_runtime_t *runtime = substream->runtime;
 393         int err;
 394
 395         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) {
 396                 return err;
 397         }
 398         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 399                 return err;
 400
 401         epcm = kcalloc(1, sizeof(*epcm), GFP_KERNEL);
 402         if (epcm == NULL)
 403                 return -ENOMEM;
 404         epcm->emu = chip;
 405         epcm->substream = substream;
 406
 407         runtime->private_data = epcm;
 408         runtime->private_free = snd_emu10k1x_pcm_free_substream;
 409
 410         runtime->hw = snd_emu10k1x_playback_hw;
 411
 412         return 0;
 413 }
 414
 415 /* close callback */
 416 static int snd_emu10k1x_playback_close(snd_pcm_substream_t *substream)
 417 {
 418         return 0;
 419 }
 420
 421 /* hw_params callback */
 422 static int snd_emu10k1x_pcm_hw_params(snd_pcm_substream_t *substream,
 423                                       snd_pcm_hw_params_t * hw_params)
 424 {
 425         snd_pcm_runtime_t *runtime = substream->runtime;
 426         emu10k1x_pcm_t *epcm = runtime->private_data;
 427
 428         if (! epcm->voice) {
 429                 epcm->voice = &epcm->emu->voices[substream->pcm->device];
 430                 epcm->voice->use = 1;
 431                 epcm->voice->epcm = epcm;
 432         }
 433
 434         return snd_pcm_lib_malloc_pages(substream,
 435                                         params_buffer_bytes(hw_params));
 436 }
 437
 438 /* hw_free callback */
 439 static int snd_emu10k1x_pcm_hw_free(snd_pcm_substream_t *substream)
 440 {
 441         snd_pcm_runtime_t *runtime = substream->runtime;
 442         emu10k1x_pcm_t *epcm;
 443
 444         if (runtime->private_data == NULL)
 445                 return 0;
 446
 447         epcm = runtime->private_data;
 448
 449         if (epcm->voice) {
 450                 epcm->voice->use = 0;
 451                 epcm->voice->epcm = NULL;
 452                 epcm->voice = NULL;
 453         }
 454
 455         return snd_pcm_lib_free_pages(substream);
 456 }
 457
 458 /* prepare callback */
 459 static int snd_emu10k1x_pcm_prepare(snd_pcm_substream_t *substream)
 460 {
 461         emu10k1x_t *emu = snd_pcm_substream_chip(substream);
 462         snd_pcm_runtime_t *runtime = substream->runtime;
 463         emu10k1x_pcm_t *epcm = runtime->private_data;
 464         int voice = epcm->voice->number;
 465         u32 *table_base = (u32 *)(emu->dma_buffer.area+1024*voice);
 466         u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
 467         int i;
 468
 469         for(i=0; i < runtime->periods; i++) {
 470                 *table_base++=runtime->dma_addr+(i*period_size_bytes);
 471                 *table_base++=period_size_bytes<<16;
 472         }
 473
 474         snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_ADDR, voice, emu->dma_buffer.addr+1024*voice);
 475         snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_SIZE, voice, (runtime->periods - 1) << 19);
 476         snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_PTR, voice, 0);
 477         snd_emu10k1x_ptr_write(emu, PLAYBACK_POINTER, voice, 0);
 478         snd_emu10k1x_ptr_write(emu, PLAYBACK_UNKNOWN1, voice, 0);
 479         snd_emu10k1x_ptr_write(emu, PLAYBACK_UNKNOWN2, voice, 0);
 480         snd_emu10k1x_ptr_write(emu, PLAYBACK_DMA_ADDR, voice, runtime->dma_addr);
 481
 482         snd_emu10k1x_ptr_write(emu, PLAYBACK_PERIOD_SIZE, voice, frames_to_bytes(runtime, runtime->period_size)<<16);
 483
 484         return 0;
 485 }
 486
 487 /* trigger callback */
 488 static int snd_emu10k1x_pcm_trigger(snd_pcm_substream_t *substream,
 489                                     int cmd)
 490 {
 491         emu10k1x_t *emu = snd_pcm_substream_chip(substream);
 492         snd_pcm_runtime_t *runtime = substream->runtime;
 493         emu10k1x_pcm_t *epcm = runtime->private_data;
 494         int channel = epcm->voice->number;
 495         int result = 0;
 496
 497 //      snd_printk(KERN_INFO "trigger - emu10k1x = 0x%x, cmd = %i, pointer = %d\n", (int)emu, cmd, (int)substream->ops->pointer(substream));
 498
 499         switch (cmd) {
 500         case SNDRV_PCM_TRIGGER_START:
 501                 if(runtime->periods == 2)
 502                         snd_emu10k1x_intr_enable(emu, (INTE_CH_0_LOOP | INTE_CH_0_HALF_LOOP) << channel);
 503                 else
 504                         snd_emu10k1x_intr_enable(emu, INTE_CH_0_LOOP << channel);
 505                 epcm->running = 1;
 506                 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0)|(TRIGGER_CHANNEL_0<<channel));
 507                 break;
 508         case SNDRV_PCM_TRIGGER_STOP:
 509                 epcm->running = 0;
 510                 snd_emu10k1x_intr_disable(emu, (INTE_CH_0_LOOP | INTE_CH_0_HALF_LOOP) << channel);
 511                 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0) & ~(TRIGGER_CHANNEL_0<<channel));
 512                 break;
 513         default:
 514                 result = -EINVAL;
 515                 break;
 516         }
 517         return result;
 518 }
 519
 520 /* pointer callback */
 521 static snd_pcm_uframes_t
 522 snd_emu10k1x_pcm_pointer(snd_pcm_substream_t *substream)
 523 {
 524         emu10k1x_t *emu = snd_pcm_substream_chip(substream);
 525         snd_pcm_runtime_t *runtime = substream->runtime;
 526         emu10k1x_pcm_t *epcm = runtime->private_data;
 527         int channel = epcm->voice->number;
 528         snd_pcm_uframes_t ptr = 0, ptr1 = 0, ptr2= 0,ptr3 = 0,ptr4 = 0;
 529
 530         if (!epcm->running)
 531                 return 0;
 532
 533         ptr3 = snd_emu10k1x_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
 534         ptr1 = snd_emu10k1x_ptr_read(emu, PLAYBACK_POINTER, channel);
 535         ptr4 = snd_emu10k1x_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
 536
 537         if(ptr4 == 0 && ptr1 == frames_to_bytes(runtime, runtime->buffer_size))
 538                 return 0;
 539
 540         if (ptr3 != ptr4)
 541                 ptr1 = snd_emu10k1x_ptr_read(emu, PLAYBACK_POINTER, channel);
 542         ptr2 = bytes_to_frames(runtime, ptr1);
 543         ptr2 += (ptr4 >> 3) * runtime->period_size;
 544         ptr = ptr2;
 545
 546         if (ptr >= runtime->buffer_size)
 547                 ptr -= runtime->buffer_size;
 548
 549         return ptr;
 550 }
 551
 552 /* operators */
 553 static snd_pcm_ops_t snd_emu10k1x_playback_ops = {
 554         .open =        snd_emu10k1x_playback_open,
 555         .close =       snd_emu10k1x_playback_close,
 556         .ioctl =       snd_pcm_lib_ioctl,
 557         .hw_params =   snd_emu10k1x_pcm_hw_params,
 558         .hw_free =     snd_emu10k1x_pcm_hw_free,
 559         .prepare =     snd_emu10k1x_pcm_prepare,
 560         .trigger =     snd_emu10k1x_pcm_trigger,
 561         .pointer =     snd_emu10k1x_pcm_pointer,
 562 };
 563
 564 /* open_capture callback */
 565 static int snd_emu10k1x_pcm_open_capture(snd_pcm_substream_t *substream)
 566 {
 567         emu10k1x_t *chip = snd_pcm_substream_chip(substream);
 568         emu10k1x_pcm_t *epcm;
 569         snd_pcm_runtime_t *runtime = substream->runtime;
 570         int err;
 571
 572         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 573                 return err;
 574         if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
 575                 return err;
 576
 577         epcm = kcalloc(1, sizeof(*epcm), GFP_KERNEL);
 578         if (epcm == NULL)
 579                 return -ENOMEM;
 580
 581         epcm->emu = chip;
 582         epcm->substream = substream;
 583
 584         runtime->private_data = epcm;
 585         runtime->private_free = snd_emu10k1x_pcm_free_substream;
 586
 587         runtime->hw = snd_emu10k1x_capture_hw;
 588
 589         return 0;
 590 }
 591
 592 /* close callback */
 593 static int snd_emu10k1x_pcm_close_capture(snd_pcm_substream_t *substream)
 594 {
 595         return 0;
 596 }
 597
 598 /* hw_params callback */
 599 static int snd_emu10k1x_pcm_hw_params_capture(snd_pcm_substream_t *substream,
 600                                               snd_pcm_hw_params_t * hw_params)
 601 {
 602         snd_pcm_runtime_t *runtime = substream->runtime;
 603         emu10k1x_pcm_t *epcm = runtime->private_data;
 604
 605         if (! epcm->voice) {
 606                 if (epcm->emu->capture_voice.use)
 607                         return -EBUSY;
 608                 epcm->voice = &epcm->emu->capture_voice;
 609                 epcm->voice->epcm = epcm;
 610                 epcm->voice->use = 1;
 611         }
 612
 613         return snd_pcm_lib_malloc_pages(substream,
 614                                         params_buffer_bytes(hw_params));
 615 }
 616
 617 /* hw_free callback */
 618 static int snd_emu10k1x_pcm_hw_free_capture(snd_pcm_substream_t *substream)
 619 {
 620         snd_pcm_runtime_t *runtime = substream->runtime;
 621
 622         emu10k1x_pcm_t *epcm;
 623
 624         if (runtime->private_data == NULL)
 625                 return 0;
 626         epcm = runtime->private_data;
 627
 628         if (epcm->voice) {
 629                 epcm->voice->use = 0;
 630                 epcm->voice->epcm = NULL;
 631                 epcm->voice = NULL;
 632         }
 633
 634         return snd_pcm_lib_free_pages(substream);
 635 }
 636
 637 /* prepare capture callback */
 638 static int snd_emu10k1x_pcm_prepare_capture(snd_pcm_substream_t *substream)
 639 {
 640         emu10k1x_t *emu = snd_pcm_substream_chip(substream);
 641         snd_pcm_runtime_t *runtime = substream->runtime;
 642
 643         snd_emu10k1x_ptr_write(emu, CAPTURE_DMA_ADDR, 0, runtime->dma_addr);
 644         snd_emu10k1x_ptr_write(emu, CAPTURE_BUFFER_SIZE, 0, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
 645         snd_emu10k1x_ptr_write(emu, CAPTURE_POINTER, 0, 0);
 646         snd_emu10k1x_ptr_write(emu, CAPTURE_UNKNOWN, 0, 0);
 647
 648         return 0;
 649 }
 650
 651 /* trigger_capture callback */
 652 static int snd_emu10k1x_pcm_trigger_capture(snd_pcm_substream_t *substream,
 653                                             int cmd)
 654 {
 655         emu10k1x_t *emu = snd_pcm_substream_chip(substream);
 656         snd_pcm_runtime_t *runtime = substream->runtime;
 657         emu10k1x_pcm_t *epcm = runtime->private_data;
 658         int result = 0;
 659
 660         switch (cmd) {
 661         case SNDRV_PCM_TRIGGER_START:
 662                 snd_emu10k1x_intr_enable(emu, INTE_CAP_0_LOOP |
 663                                          INTE_CAP_0_HALF_LOOP);
 664                 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0)|TRIGGER_CAPTURE);
 665                 epcm->running = 1;
 666                 break;
 667         case SNDRV_PCM_TRIGGER_STOP:
 668                 epcm->running = 0;
 669                 snd_emu10k1x_intr_disable(emu, INTE_CAP_0_LOOP |
 670                                           INTE_CAP_0_HALF_LOOP);
 671                 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0) & ~(TRIGGER_CAPTURE));
 672                 break;
 673         default:
 674                 result = -EINVAL;
 675                 break;
 676         }
 677         return result;
 678 }
 679
 680 /* pointer_capture callback */
 681 static snd_pcm_uframes_t
 682 snd_emu10k1x_pcm_pointer_capture(snd_pcm_substream_t *substream)
 683 {
 684         emu10k1x_t *emu = snd_pcm_substream_chip(substream);
 685         snd_pcm_runtime_t *runtime = substream->runtime;
 686         emu10k1x_pcm_t *epcm = runtime->private_data;
 687         snd_pcm_uframes_t ptr;
 688
 689         if (!epcm->running)
 690                 return 0;
 691
 692         ptr = bytes_to_frames(runtime, snd_emu10k1x_ptr_read(emu, CAPTURE_POINTER, 0));
 693         if (ptr >= runtime->buffer_size)
 694                 ptr -= runtime->buffer_size;
 695
 696         return ptr;
 697 }
 698
 699 static snd_pcm_ops_t snd_emu10k1x_capture_ops = {
 700         .open =        snd_emu10k1x_pcm_open_capture,
 701         .close =       snd_emu10k1x_pcm_close_capture,
 702         .ioctl =       snd_pcm_lib_ioctl,
 703         .hw_params =   snd_emu10k1x_pcm_hw_params_capture,
 704         .hw_free =     snd_emu10k1x_pcm_hw_free_capture,
 705         .prepare =     snd_emu10k1x_pcm_prepare_capture,
 706         .trigger =     snd_emu10k1x_pcm_trigger_capture,
 707         .pointer =     snd_emu10k1x_pcm_pointer_capture,
 708 };
 709
 710 static unsigned short snd_emu10k1x_ac97_read(ac97_t *ac97,
 711                                              unsigned short reg)
 712 {
 713         emu10k1x_t *emu = ac97->private_data;
 714         unsigned long flags;
 715         unsigned short val;
 716
 717         spin_lock_irqsave(&emu->emu_lock, flags);
 718         outb(reg, emu->port + AC97ADDRESS);
 719         val = inw(emu->port + AC97DATA);
 720         spin_unlock_irqrestore(&emu->emu_lock, flags);
 721         return val;
 722 }
 723
 724 static void snd_emu10k1x_ac97_write(ac97_t *ac97,
 725                                     unsigned short reg, unsigned short val)
 726 {
 727         emu10k1x_t *emu = ac97->private_data;
 728         unsigned long flags;
 729
 730         spin_lock_irqsave(&emu->emu_lock, flags);
 731         outb(reg, emu->port + AC97ADDRESS);
 732         outw(val, emu->port + AC97DATA);
 733         spin_unlock_irqrestore(&emu->emu_lock, flags);
 734 }
 735
 736 static int snd_emu10k1x_ac97(emu10k1x_t *chip)
 737 {
 738         ac97_bus_t *pbus;
 739         ac97_template_t ac97;
 740         int err;
 741         static ac97_bus_ops_t ops = {
 742                 .write = snd_emu10k1x_ac97_write,
 743                 .read = snd_emu10k1x_ac97_read,
 744         };
 745
 746         if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
 747                 return err;
 748         pbus->no_vra = 1; /* we don't need VRA */
 749
 750         memset(&ac97, 0, sizeof(ac97));
 751         ac97.private_data = chip;
 752         ac97.scaps = AC97_SCAP_NO_SPDIF;
 753         return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
 754 }
 755
 756 static int snd_emu10k1x_free(emu10k1x_t *chip)
 757 {
 758         snd_emu10k1x_ptr_write(chip, TRIGGER_CHANNEL, 0, 0);
 759         // disable interrupts
 760         outl(0, chip->port + INTE);
 761         // disable audio
 762         outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG);
 763
 764         // release the i/o port
 765         if (chip->res_port) {
 766                 release_resource(chip->res_port);
 767                 kfree_nocheck(chip->res_port);
 768         }
 769         // release the irq
 770         if (chip->irq >= 0)
 771                 free_irq(chip->irq, (void *)chip);
 772
 773         // release the DMA
 774         if (chip->dma_buffer.area) {
 775                 snd_dma_free_pages(&chip->dma_buffer);
 776         }
 777
 778         pci_disable_device(chip->pci);
 779
 780         // release the data
 781         kfree(chip);
 782         return 0;
 783 }
 784
 785 static int snd_emu10k1x_dev_free(snd_device_t *device)
 786 {
 787         emu10k1x_t *chip = device->device_data;
 788         return snd_emu10k1x_free(chip);
 789 }
 790
 791 static irqreturn_t snd_emu10k1x_interrupt(int irq, void *dev_id,
 792                                           struct pt_regs *regs)
 793 {
 794         unsigned int status;
 795
 796         emu10k1x_t *chip = dev_id;
 797         emu10k1x_voice_t *pvoice = chip->voices;
 798         int i;
 799         int mask;
 800
 801         status = inl(chip->port + IPR);
 802
 803         if(status) {
 804                 // capture interrupt
 805                 if(status & (IPR_CAP_0_LOOP | IPR_CAP_0_HALF_LOOP)) {
 806                         emu10k1x_voice_t *pvoice = &chip->capture_voice;
 807                         if(pvoice->use)
 808                                 snd_emu10k1x_pcm_interrupt(chip, pvoice);
 809                         else
 810                                 snd_emu10k1x_intr_disable(chip,
 811                                                           INTE_CAP_0_LOOP |
 812                                                           INTE_CAP_0_HALF_LOOP);
 813                 }
 814
 815                 mask = IPR_CH_0_LOOP|IPR_CH_0_HALF_LOOP;
 816                 for(i = 0; i < 3; i++) {
 817                         if(status & mask) {
 818                                 if(pvoice->use)
 819                                         snd_emu10k1x_pcm_interrupt(chip, pvoice);
 820                                 else
 821                                         snd_emu10k1x_intr_disable(chip, mask);
 822                         }
 823                         pvoice++;
 824                         mask <<= 1;
 825                 }
 826
 827                 if (status & (IPR_MIDITRANSBUFEMPTY|IPR_MIDIRECVBUFEMPTY)) {
 828                         if (chip->midi.interrupt)
 829                                 chip->midi.interrupt(chip, status);
 830                         else
 831                                 snd_emu10k1x_intr_disable(chip, INTE_MIDITXENABLE|INTE_MIDIRXENABLE);
 832                 }
 833
 834                 // acknowledge the interrupt if necessary
 835                 if(status)
 836                         outl(status, chip->port+IPR);
 837
 838 //              snd_printk(KERN_INFO "interrupt %08x\n", status);
 839         }
 840
 841         return IRQ_HANDLED;
 842 }
 843
 844 static void snd_emu10k1x_pcm_free(snd_pcm_t *pcm)
 845 {
 846         emu10k1x_t *emu = pcm->private_data;
 847         emu->pcm = NULL;
 848         snd_pcm_lib_preallocate_free_for_all(pcm);
 849 }
 850
 851 static int __devinit snd_emu10k1x_pcm(emu10k1x_t *emu, int device, snd_pcm_t **rpcm)
 852 {
 853         snd_pcm_t *pcm;
 854         int err;
 855         int capture = 0;
 856
 857         if (rpcm)
 858                 *rpcm = NULL;
 859         if (device == 0)
 860                 capture = 1;
 861
 862         if ((err = snd_pcm_new(emu->card, "emu10k1x", device, 1, capture, &pcm)) < 0)
 863                 return err;
 864
 865         pcm->private_data = emu;
 866         pcm->private_free = snd_emu10k1x_pcm_free;
 867
 868         switch(device) {
 869         case 0:
 870                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1x_playback_ops);
 871                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1x_capture_ops);
 872                 break;
 873         case 1:
 874         case 2:
 875                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1x_playback_ops);
 876                 break;
 877         }
 878
 879         pcm->info_flags = 0;
 880         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
 881         switch(device) {
 882         case 0:
 883                 strcpy(pcm->name, "EMU10K1X Front");
 884                 break;
 885         case 1:
 886                 strcpy(pcm->name, "EMU10K1X Rear");
 887                 break;
 888         case 2:
 889                 strcpy(pcm->name, "EMU10K1X Center/LFE");
 890                 break;
 891         }
 892         emu->pcm = pcm;
 893
 894         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
 895                                               snd_dma_pci_data(emu->pci),
 896                                               32*1024, 32*1024);
 897
 898         if (rpcm)
 899                 *rpcm = pcm;
 900
 901         return 0;
 902 }
 903
 904 static int __devinit snd_emu10k1x_create(snd_card_t *card,
 905                                          struct pci_dev *pci,
 906                                          emu10k1x_t **rchip)
 907 {
 908         emu10k1x_t *chip;
 909         int err;
 910         int ch;
 911         static snd_device_ops_t ops = {
 912                 .dev_free = snd_emu10k1x_dev_free,
 913         };
 914
 915         *rchip = NULL;
 916
 917         if ((err = pci_enable_device(pci)) < 0)
 918                 return err;
 919         if (pci_set_dma_mask(pci, 0x0fffffff) < 0 ||
 920             pci_set_consistent_dma_mask(pci, 0x0fffffff) < 0) {
 921                 snd_printk(KERN_ERR "error to set 28bit mask DMA\n");
 922                 pci_disable_device(pci);
 923                 return -ENXIO;
 924         }
 925
 926         chip = kcalloc(1, sizeof(*chip), GFP_KERNEL);
 927         if (chip == NULL) {
 928                 pci_disable_device(pci);
 929                 return -ENOMEM;
 930         }
 931
 932         chip->card = card;
 933         chip->pci = pci;
 934         chip->irq = -1;
 935
 936         spin_lock_init(&chip->emu_lock);
 937         spin_lock_init(&chip->voice_lock);
 938
 939         chip->port = pci_resource_start(pci, 0);
 940         if ((chip->res_port = request_region(chip->port, 8,
 941                                              "EMU10K1X")) == NULL) {
 942                 snd_printk(KERN_ERR "emu10k1x: cannot allocate the port 0x%lx\n", chip->port);
 943                 snd_emu10k1x_free(chip);
 944                 return -EBUSY;
 945         }
 946
 947         if (request_irq(pci->irq, snd_emu10k1x_interrupt,
 948                         SA_INTERRUPT|SA_SHIRQ, "EMU10K1X",
 949                         (void *)chip)) {
 950                 snd_printk(KERN_ERR "emu10k1x: cannot grab irq %d\n", pci->irq);
 951                 snd_emu10k1x_free(chip);
 952                 return -EBUSY;
 953         }
 954         chip->irq = pci->irq;
 955
 956         if(snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
 957                                4 * 1024, &chip->dma_buffer) < 0) {
 958                 snd_emu10k1x_free(chip);
 959                 return -ENOMEM;
 960         }
 961
 962         pci_set_master(pci);
 963         /* read revision & serial */
 964         pci_read_config_byte(pci, PCI_REVISION_ID, (char *)&chip->revision);
 965         pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
 966         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
 967         snd_printk(KERN_INFO "Model %04x Rev %08x Serial %08x\n", chip->model,
 968                    chip->revision, chip->serial);
 969
 970         outl(0, chip->port + INTE);
 971
 972         for(ch = 0; ch < 3; ch++) {
 973                 chip->voices[ch].emu = chip;
 974                 chip->voices[ch].number = ch;
 975         }
 976
 977         /*
 978          *  Init to 0x02109204 :
 979          *  Clock accuracy    = 0     (1000ppm)
 980          *  Sample Rate       = 2     (48kHz)
 981          *  Audio Channel     = 1     (Left of 2)
 982          *  Source Number     = 0     (Unspecified)
 983          *  Generation Status = 1     (Original for Cat Code 12)
 984          *  Cat Code          = 12    (Digital Signal Mixer)
 985          *  Mode              = 0     (Mode 0)
 986          *  Emphasis          = 0     (None)
 987          *  CP                = 1     (Copyright unasserted)
 988          *  AN                = 0     (Audio data)
 989          *  P                 = 0     (Consumer)
 990          */
 991         snd_emu10k1x_ptr_write(chip, SPCS0, 0,
 992                                chip->spdif_bits[0] =
 993                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
 994                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
 995                                SPCS_GENERATIONSTATUS | 0x00001200 |
 996                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
 997         snd_emu10k1x_ptr_write(chip, SPCS1, 0,
 998                                chip->spdif_bits[1] =
 999                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1000                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1001                                SPCS_GENERATIONSTATUS | 0x00001200 |
1002                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1003         snd_emu10k1x_ptr_write(chip, SPCS2, 0,
1004                                chip->spdif_bits[2] =
1005                                SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1006                                SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1007                                SPCS_GENERATIONSTATUS | 0x00001200 |
1008                                0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1009
1010         snd_emu10k1x_ptr_write(chip, SPDIF_SELECT, 0, 0x700); // disable SPDIF
1011         snd_emu10k1x_ptr_write(chip, ROUTING, 0, 0x1003F); // routing
1012         snd_emu10k1x_gpio_write(chip, 0x1080); // analog mode
1013
1014         outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG);
1015
1016         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
1017                                   chip, &ops)) < 0) {
1018                 snd_emu10k1x_free(chip);
1019                 return err;
1020         }
1021         *rchip = chip;
1022         return 0;
1023 }
1024
1025 static void snd_emu10k1x_proc_reg_read(snd_info_entry_t *entry,
1026                                        snd_info_buffer_t * buffer)
1027 {
1028         emu10k1x_t *emu = entry->private_data;
1029         unsigned long value,value1,value2;
1030         unsigned long flags;
1031         int i;
1032
1033         snd_iprintf(buffer, "Registers:\n\n");
1034         for(i = 0; i < 0x20; i+=4) {
1035                 spin_lock_irqsave(&emu->emu_lock, flags);
1036                 value = inl(emu->port + i);
1037                 spin_unlock_irqrestore(&emu->emu_lock, flags);
1038                 snd_iprintf(buffer, "Register %02X: %08lX\n", i, value);
1039         }
1040         snd_iprintf(buffer, "\nRegisters\n\n");
1041         for(i = 0; i <= 0x48; i++) {
1042                 value = snd_emu10k1x_ptr_read(emu, i, 0);
1043                 if(i < 0x10 || (i >= 0x20 && i < 0x40)) {
1044                         value1 = snd_emu10k1x_ptr_read(emu, i, 1);
1045                         value2 = snd_emu10k1x_ptr_read(emu, i, 2);
1046                         snd_iprintf(buffer, "%02X: %08lX %08lX %08lX\n", i, value, value1, value2);
1047                 } else {
1048                         snd_iprintf(buffer, "%02X: %08lX\n", i, value);
1049                 }
1050         }
1051 }
1052
1053 static void snd_emu10k1x_proc_reg_write(snd_info_entry_t *entry,
1054                                         snd_info_buffer_t *buffer)
1055 {
1056         emu10k1x_t *emu = entry->private_data;
1057         char line[64];
1058         unsigned int reg, channel_id , val;
1059
1060         while (!snd_info_get_line(buffer, line, sizeof(line))) {
1061                 if (sscanf(line, "%x %x %x", &reg, &channel_id, &val) != 3)
1062                         continue;
1063
1064                 if ((reg < 0x49) && (reg >=0) && (val <= 0xffffffff)
1065                     && (channel_id >=0) && (channel_id <= 2) )
1066                         snd_emu10k1x_ptr_write(emu, reg, channel_id, val);
1067         }
1068 }
1069
1070 static int __devinit snd_emu10k1x_proc_init(emu10k1x_t * emu)
1071 {
1072         snd_info_entry_t *entry;
1073
1074         if(! snd_card_proc_new(emu->card, "emu10k1x_regs", &entry)) {
1075                 snd_info_set_text_ops(entry, emu, 1024, snd_emu10k1x_proc_reg_read);
1076                 entry->c.text.write_size = 64;
1077                 entry->c.text.write = snd_emu10k1x_proc_reg_write;
1078                 entry->private_data = emu;
1079         }
1080
1081         return 0;
1082 }
1083
1084 static int snd_emu10k1x_shared_spdif_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
1085 {
1086         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1087         uinfo->count = 1;
1088         uinfo->value.integer.min = 0;
1089         uinfo->value.integer.max = 1;
1090         return 0;
1091 }
1092
1093 static int snd_emu10k1x_shared_spdif_get(snd_kcontrol_t * kcontrol,
1094                                          snd_ctl_elem_value_t * ucontrol)
1095 {
1096         emu10k1x_t *emu = snd_kcontrol_chip(kcontrol);
1097
1098         ucontrol->value.integer.value[0] = (snd_emu10k1x_ptr_read(emu, SPDIF_SELECT, 0) == 0x700) ? 0 : 1;
1099
1100         return 0;
1101 }
1102
1103 static int snd_emu10k1x_shared_spdif_put(snd_kcontrol_t * kcontrol,
1104                                          snd_ctl_elem_value_t * ucontrol)
1105 {
1106         emu10k1x_t *emu = snd_kcontrol_chip(kcontrol);
1107         unsigned int val;
1108         int change = 0;
1109
1110         val = ucontrol->value.integer.value[0] ;
1111
1112         if (val) {
1113                 // enable spdif output
1114                 snd_emu10k1x_ptr_write(emu, SPDIF_SELECT, 0, 0x000);
1115                 snd_emu10k1x_ptr_write(emu, ROUTING, 0, 0x700);
1116                 snd_emu10k1x_gpio_write(emu, 0x1000);
1117         } else {
1118                 // disable spdif output
1119                 snd_emu10k1x_ptr_write(emu, SPDIF_SELECT, 0, 0x700);
1120                 snd_emu10k1x_ptr_write(emu, ROUTING, 0, 0x1003F);
1121                 snd_emu10k1x_gpio_write(emu, 0x1080);
1122         }
1123         return change;
1124 }
1125
1126 static snd_kcontrol_new_t snd_emu10k1x_shared_spdif __devinitdata =
1127 {
1128         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
1129         .name =         "Analog/Digital Output Jack",
1130         .info =         snd_emu10k1x_shared_spdif_info,
1131         .get =          snd_emu10k1x_shared_spdif_get,
1132         .put =          snd_emu10k1x_shared_spdif_put
1133 };
1134
1135 static int snd_emu10k1x_spdif_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
1136 {
1137         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1138         uinfo->count = 1;
1139         return 0;
1140 }
1141
1142 static int snd_emu10k1x_spdif_get(snd_kcontrol_t * kcontrol,
1143                                   snd_ctl_elem_value_t * ucontrol)
1144 {
1145         emu10k1x_t *emu = snd_kcontrol_chip(kcontrol);
1146         unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
1147
1148         ucontrol->value.iec958.status[0] = (emu->spdif_bits[idx] >> 0) & 0xff;
1149         ucontrol->value.iec958.status[1] = (emu->spdif_bits[idx] >> 8) & 0xff;
1150         ucontrol->value.iec958.status[2] = (emu->spdif_bits[idx] >> 16) & 0xff;
1151         ucontrol->value.iec958.status[3] = (emu->spdif_bits[idx] >> 24) & 0xff;
1152         return 0;
1153 }
1154
1155 static int snd_emu10k1x_spdif_get_mask(snd_kcontrol_t * kcontrol,
1156                                        snd_ctl_elem_value_t * ucontrol)
1157 {
1158         ucontrol->value.iec958.status[0] = 0xff;
1159         ucontrol->value.iec958.status[1] = 0xff;
1160         ucontrol->value.iec958.status[2] = 0xff;
1161         ucontrol->value.iec958.status[3] = 0xff;
1162         return 0;
1163 }
1164
1165 static int snd_emu10k1x_spdif_put(snd_kcontrol_t * kcontrol,
1166                                   snd_ctl_elem_value_t * ucontrol)
1167 {
1168         emu10k1x_t *emu = snd_kcontrol_chip(kcontrol);
1169         unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
1170         int change;
1171         unsigned int val;
1172
1173         val = (ucontrol->value.iec958.status[0] << 0) |
1174                 (ucontrol->value.iec958.status[1] << 8) |
1175                 (ucontrol->value.iec958.status[2] << 16) |
1176                 (ucontrol->value.iec958.status[3] << 24);
1177         change = val != emu->spdif_bits[idx];
1178         if (change) {
1179                 snd_emu10k1x_ptr_write(emu, SPCS0 + idx, 0, val);
1180                 emu->spdif_bits[idx] = val;
1181         }
1182         return change;
1183 }
1184
1185 static snd_kcontrol_new_t snd_emu10k1x_spdif_mask_control =
1186 {
1187         .access =       SNDRV_CTL_ELEM_ACCESS_READ,
1188         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
1189         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
1190         .count =        3,
1191         .info =         snd_emu10k1x_spdif_info,
1192         .get =          snd_emu10k1x_spdif_get_mask
1193 };
1194
1195 static snd_kcontrol_new_t snd_emu10k1x_spdif_control =
1196 {
1197         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
1198         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
1199         .count =        3,
1200         .info =         snd_emu10k1x_spdif_info,
1201         .get =          snd_emu10k1x_spdif_get,
1202         .put =          snd_emu10k1x_spdif_put
1203 };
1204
1205 static int __devinit snd_emu10k1x_mixer(emu10k1x_t *emu)
1206 {
1207         int err;
1208         snd_kcontrol_t *kctl;
1209         snd_card_t *card = emu->card;
1210
1211         if ((kctl = snd_ctl_new1(&snd_emu10k1x_spdif_mask_control, emu)) == NULL)
1212                 return -ENOMEM;
1213         if ((err = snd_ctl_add(card, kctl)))
1214                 return err;
1215         if ((kctl = snd_ctl_new1(&snd_emu10k1x_shared_spdif, emu)) == NULL)
1216                 return -ENOMEM;
1217         if ((err = snd_ctl_add(card, kctl)))
1218                 return err;
1219         if ((kctl = snd_ctl_new1(&snd_emu10k1x_spdif_control, emu)) == NULL)
1220                 return -ENOMEM;
1221         if ((err = snd_ctl_add(card, kctl)))
1222                 return err;
1223
1224         return 0;
1225 }
1226
1227 #define EMU10K1X_MIDI_MODE_INPUT        (1<<0)
1228 #define EMU10K1X_MIDI_MODE_OUTPUT       (1<<1)
1229
1230 static inline unsigned char mpu401_read(emu10k1x_t *emu, emu10k1x_midi_t *mpu, int idx)
1231 {
1232         return (unsigned char)snd_emu10k1x_ptr_read(emu, mpu->port + idx, 0);
1233 }
1234
1235 static inline void mpu401_write(emu10k1x_t *emu, emu10k1x_midi_t *mpu, int data, int idx)
1236 {
1237         snd_emu10k1x_ptr_write(emu, mpu->port + idx, 0, data);
1238 }
1239
1240 #define mpu401_write_data(emu, mpu, data)       mpu401_write(emu, mpu, data, 0)
1241 #define mpu401_write_cmd(emu, mpu, data)        mpu401_write(emu, mpu, data, 1)
1242 #define mpu401_read_data(emu, mpu)              mpu401_read(emu, mpu, 0)
1243 #define mpu401_read_stat(emu, mpu)              mpu401_read(emu, mpu, 1)
1244
1245 #define mpu401_input_avail(emu,mpu)     (!(mpu401_read_stat(emu,mpu) & 0x80))
1246 #define mpu401_output_ready(emu,mpu)    (!(mpu401_read_stat(emu,mpu) & 0x40))
1247
1248 #define MPU401_RESET            0xff
1249 #define MPU401_ENTER_UART       0x3f
1250 #define MPU401_ACK              0xfe
1251
1252 static void mpu401_clear_rx(emu10k1x_t *emu, emu10k1x_midi_t *mpu)
1253 {
1254         int timeout = 100000;
1255         for (; timeout > 0 && mpu401_input_avail(emu, mpu); timeout--)
1256                 mpu401_read_data(emu, mpu);
1257 #ifdef CONFIG_SND_DEBUG
1258         if (timeout <= 0)
1259                 snd_printk(KERN_ERR "cmd: clear rx timeout (status = 0x%x)\n", mpu401_read_stat(emu, mpu));
1260 #endif
1261 }
1262
1263 /*
1264
1265  */
1266
1267 static void do_emu10k1x_midi_interrupt(emu10k1x_t *emu, emu10k1x_midi_t *midi, unsigned int status)
1268 {
1269         unsigned char byte;
1270
1271         if (midi->rmidi == NULL) {
1272                 snd_emu10k1x_intr_disable(emu, midi->tx_enable | midi->rx_enable);
1273                 return;
1274         }
1275
1276         spin_lock(&midi->input_lock);
1277         if ((status & midi->ipr_rx) && mpu401_input_avail(emu, midi)) {
1278                 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
1279                         mpu401_clear_rx(emu, midi);
1280                 } else {
1281                         byte = mpu401_read_data(emu, midi);
1282                         if (midi->substream_input)
1283                                 snd_rawmidi_receive(midi->substream_input, &byte, 1);
1284                 }
1285         }
1286         spin_unlock(&midi->input_lock);
1287
1288         spin_lock(&midi->output_lock);
1289         if ((status & midi->ipr_tx) && mpu401_output_ready(emu, midi)) {
1290                 if (midi->substream_output &&
1291                     snd_rawmidi_transmit(midi->substream_output, &byte, 1) == 1) {
1292                         mpu401_write_data(emu, midi, byte);
1293                 } else {
1294                         snd_emu10k1x_intr_disable(emu, midi->tx_enable);
1295                 }
1296         }
1297         spin_unlock(&midi->output_lock);
1298 }
1299
1300 static void snd_emu10k1x_midi_interrupt(emu10k1x_t *emu, unsigned int status)
1301 {
1302         do_emu10k1x_midi_interrupt(emu, &emu->midi, status);
1303 }
1304
1305 static void snd_emu10k1x_midi_cmd(emu10k1x_t * emu, emu10k1x_midi_t *midi, unsigned char cmd, int ack)
1306 {
1307         unsigned long flags;
1308         int timeout, ok;
1309
1310         spin_lock_irqsave(&midi->input_lock, flags);
1311         mpu401_write_data(emu, midi, 0x00);
1312         /* mpu401_clear_rx(emu, midi); */
1313
1314         mpu401_write_cmd(emu, midi, cmd);
1315         if (ack) {
1316                 ok = 0;
1317                 timeout = 10000;
1318                 while (!ok && timeout-- > 0) {
1319                         if (mpu401_input_avail(emu, midi)) {
1320                                 if (mpu401_read_data(emu, midi) == MPU401_ACK)
1321                                         ok = 1;
1322                         }
1323                 }
1324                 if (!ok && mpu401_read_data(emu, midi) == MPU401_ACK)
1325                         ok = 1;
1326         } else {
1327                 ok = 1;
1328         }
1329         spin_unlock_irqrestore(&midi->input_lock, flags);
1330         if (!ok)
1331                 snd_printk(KERN_ERR "midi_cmd: 0x%x failed at 0x%lx (status = 0x%x, data = 0x%x)!!!\n",
1332                            cmd, emu->port,
1333                            mpu401_read_stat(emu, midi),
1334                            mpu401_read_data(emu, midi));
1335 }
1336
1337 static int snd_emu10k1x_midi_input_open(snd_rawmidi_substream_t * substream)
1338 {
1339         emu10k1x_t *emu;
1340         emu10k1x_midi_t *midi = (emu10k1x_midi_t *)substream->rmidi->private_data;
1341         unsigned long flags;
1342
1343         emu = midi->emu;
1344         snd_assert(emu, return -ENXIO);
1345         spin_lock_irqsave(&midi->open_lock, flags);
1346         midi->midi_mode |= EMU10K1X_MIDI_MODE_INPUT;
1347         midi->substream_input = substream;
1348         if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT)) {
1349                 spin_unlock_irqrestore(&midi->open_lock, flags);
1350                 snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 1);
1351                 snd_emu10k1x_midi_cmd(emu, midi, MPU401_ENTER_UART, 1);
1352         } else {
1353                 spin_unlock_irqrestore(&midi->open_lock, flags);
1354         }
1355         return 0;
1356 }
1357
1358 static int snd_emu10k1x_midi_output_open(snd_rawmidi_substream_t * substream)
1359 {
1360         emu10k1x_t *emu;
1361         emu10k1x_midi_t *midi = (emu10k1x_midi_t *)substream->rmidi->private_data;
1362         unsigned long flags;
1363
1364         emu = midi->emu;
1365         snd_assert(emu, return -ENXIO);
1366         spin_lock_irqsave(&midi->open_lock, flags);
1367         midi->midi_mode |= EMU10K1X_MIDI_MODE_OUTPUT;
1368         midi->substream_output = substream;
1369         if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
1370                 spin_unlock_irqrestore(&midi->open_lock, flags);
1371                 snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 1);
1372                 snd_emu10k1x_midi_cmd(emu, midi, MPU401_ENTER_UART, 1);
1373         } else {
1374                 spin_unlock_irqrestore(&midi->open_lock, flags);
1375         }
1376         return 0;
1377 }
1378
1379 static int snd_emu10k1x_midi_input_close(snd_rawmidi_substream_t * substream)
1380 {
1381         emu10k1x_t *emu;
1382         emu10k1x_midi_t *midi = (emu10k1x_midi_t *)substream->rmidi->private_data;
1383         unsigned long flags;
1384
1385         emu = midi->emu;
1386         snd_assert(emu, return -ENXIO);
1387         spin_lock_irqsave(&midi->open_lock, flags);
1388         snd_emu10k1x_intr_disable(emu, midi->rx_enable);
1389         midi->midi_mode &= ~EMU10K1X_MIDI_MODE_INPUT;
1390         midi->substream_input = NULL;
1391         if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT)) {
1392                 spin_unlock_irqrestore(&midi->open_lock, flags);
1393                 snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 0);
1394         } else {
1395                 spin_unlock_irqrestore(&midi->open_lock, flags);
1396         }
1397         return 0;
1398 }
1399
1400 static int snd_emu10k1x_midi_output_close(snd_rawmidi_substream_t * substream)
1401 {
1402         emu10k1x_t *emu;
1403         emu10k1x_midi_t *midi = (emu10k1x_midi_t *)substream->rmidi->private_data;
1404         unsigned long flags;
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                 snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 0);
1415         } else {
1416                 spin_unlock_irqrestore(&midi->open_lock, flags);
1417         }
1418         return 0;
1419 }
1420
1421 static void snd_emu10k1x_midi_input_trigger(snd_rawmidi_substream_t * substream, int up)
1422 {
1423         emu10k1x_t *emu;
1424         emu10k1x_midi_t *midi = (emu10k1x_midi_t *)substream->rmidi->private_data;
1425         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(snd_rawmidi_substream_t * substream, int up)
1435 {
1436         emu10k1x_t *emu;
1437         emu10k1x_midi_t *midi = (emu10k1x_midi_t *)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 snd_rawmidi_ops_t 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 snd_rawmidi_ops_t 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(snd_rawmidi_t *rmidi)
1489 {
1490         emu10k1x_midi_t *midi = (emu10k1x_midi_t *)rmidi->private_data;
1491         midi->interrupt = NULL;
1492         midi->rmidi = NULL;
1493 }
1494
1495 static int __devinit emu10k1x_midi_init(emu10k1x_t *emu, emu10k1x_midi_t *midi, int device, char *name)
1496 {
1497         snd_rawmidi_t *rmidi;
1498         int err;
1499
1500         if ((err = snd_rawmidi_new(emu->card, name, device, 1, 1, &rmidi)) < 0)
1501                 return err;
1502         midi->emu = emu;
1503         spin_lock_init(&midi->open_lock);
1504         spin_lock_init(&midi->input_lock);
1505         spin_lock_init(&midi->output_lock);
1506         strcpy(rmidi->name, name);
1507         snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_emu10k1x_midi_output);
1508         snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_emu10k1x_midi_input);
1509         rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT |
1510                              SNDRV_RAWMIDI_INFO_INPUT |
1511                              SNDRV_RAWMIDI_INFO_DUPLEX;
1512         rmidi->private_data = midi;
1513         rmidi->private_free = snd_emu10k1x_midi_free;
1514         midi->rmidi = rmidi;
1515         return 0;
1516 }
1517
1518 static int __devinit snd_emu10k1x_midi(emu10k1x_t *emu)
1519 {
1520         emu10k1x_midi_t *midi = &emu->midi;
1521         int err;
1522
1523         if ((err = emu10k1x_midi_init(emu, midi, 0, "EMU10K1X MPU-401 (UART)")) < 0)
1524                 return err;
1525
1526         midi->tx_enable = INTE_MIDITXENABLE;
1527         midi->rx_enable = INTE_MIDIRXENABLE;
1528         midi->port = MUDATA;
1529         midi->ipr_tx = IPR_MIDITRANSBUFEMPTY;
1530         midi->ipr_rx = IPR_MIDIRECVBUFEMPTY;
1531         midi->interrupt = snd_emu10k1x_midi_interrupt;
1532         return 0;
1533 }
1534
1535 static int __devinit snd_emu10k1x_probe(struct pci_dev *pci,
1536                                         const struct pci_device_id *pci_id)
1537 {
1538         static int dev;
1539         snd_card_t *card;
1540         emu10k1x_t *chip;
1541         int err;
1542
1543         if (dev >= SNDRV_CARDS)
1544                 return -ENODEV;
1545         if (!enable[dev]) {
1546                 dev++;
1547                 return -ENOENT;
1548         }
1549
1550         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
1551         if (card == NULL)
1552                 return -ENOMEM;
1553
1554         if ((err = snd_emu10k1x_create(card, pci, &chip)) < 0) {
1555                 snd_card_free(card);
1556                 return err;
1557         }
1558
1559         if ((err = snd_emu10k1x_pcm(chip, 0, NULL)) < 0) {
1560                 snd_card_free(card);
1561                 return err;
1562         }
1563         if ((err = snd_emu10k1x_pcm(chip, 1, NULL)) < 0) {
1564                 snd_card_free(card);
1565                 return err;
1566         }
1567         if ((err = snd_emu10k1x_pcm(chip, 2, NULL)) < 0) {
1568                 snd_card_free(card);
1569                 return err;
1570         }
1571
1572         if ((err = snd_emu10k1x_ac97(chip)) < 0) {
1573                 snd_card_free(card);
1574                 return err;
1575         }
1576
1577         if ((err = snd_emu10k1x_mixer(chip)) < 0) {
1578                 snd_card_free(card);
1579                 return err;
1580         }
1581
1582         if ((err = snd_emu10k1x_midi(chip)) < 0) {
1583                 snd_card_free(card);
1584                 return err;
1585         }
1586
1587         snd_emu10k1x_proc_init(chip);
1588
1589         strcpy(card->driver, "EMU10K1X");
1590         strcpy(card->shortname, "Dell Sound Blaster Live!");
1591         sprintf(card->longname, "%s at 0x%lx irq %i",
1592                 card->shortname, chip->port, chip->irq);
1593
1594         if ((err = snd_card_register(card)) < 0) {
1595                 snd_card_free(card);
1596                 return err;
1597         }
1598
1599         pci_set_drvdata(pci, card);
1600         dev++;
1601         return 0;
1602 }
1603
1604 static void __devexit snd_emu10k1x_remove(struct pci_dev *pci)
1605 {
1606         snd_card_free(pci_get_drvdata(pci));
1607         pci_set_drvdata(pci, NULL);
1608 }
1609
1610 // PCI IDs
1611 static struct pci_device_id snd_emu10k1x_ids[] = {
1612         { 0x1102, 0x0006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },    /* Dell OEM version (EMU10K1) */
1613         { 0, }
1614 };
1615 MODULE_DEVICE_TABLE(pci, snd_emu10k1x_ids);
1616
1617 // pci_driver definition
1618 static struct pci_driver driver = {
1619         .name = "EMU10K1X",
1620         .id_table = snd_emu10k1x_ids,
1621         .probe = snd_emu10k1x_probe,
1622         .remove = __devexit_p(snd_emu10k1x_remove),
1623 };
1624
1625 // initialization of the module
1626 static int __init alsa_card_emu10k1x_init(void)
1627 {
1628         int err;
1629
1630         if ((err = pci_module_init(&driver)) > 0)
1631                 return err;
1632
1633         return 0;
1634 }
1635
1636 // clean up the module
1637 static void __exit alsa_card_emu10k1x_exit(void)
1638 {
1639         pci_unregister_driver(&driver);
1640 }
1641
1642 module_init(alsa_card_emu10k1x_init)
1643 module_exit(alsa_card_emu10k1x_exit)