include/sound/vx_core.h

   1 /*
   2  * Driver for Digigram VX soundcards
   3  *
   4  * Hardware core part
   5  *
   6  * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
   7  *
   8  *   This program is free software; you can redistribute it and/or modify
   9  *   it under the terms of the GNU General Public License as published by
  10  *   the Free Software Foundation; either version 2 of the License, or
  11  *   (at your option) any later version.
  12  *
  13  *   This program is distributed in the hope that it will be useful,
  14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *   GNU General Public License for more details.
  17  *
  18  *   You should have received a copy of the GNU General Public License
  19  *   along with this program; if not, write to the Free Software
  20  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  21  */
  22
  23 #ifndef __SOUND_VX_COMMON_H
  24 #define __SOUND_VX_COMMON_H
  25
  26 #include <sound/pcm.h>
  27 #include <sound/hwdep.h>
  28 #include <linux/interrupt.h>
  29
  30 #if defined(CONFIG_FW_LOADER) || defined(CONFIG_FW_LOADER_MODULE)
  31 #if !defined(CONFIG_USE_VXLOADER) && !defined(CONFIG_SND_VX_LIB) /* built-in kernel */
  32 #define SND_VX_FW_LOADER        /* use the standard firmware loader */
  33 #endif
  34 #endif
  35
  36 struct firmware;
  37 struct device;
  38
  39 #define VX_DRIVER_VERSION       0x010000        /* 1.0.0 */
  40
  41 /*
  42  */
  43 #define SIZE_MAX_CMD    0x10
  44 #define SIZE_MAX_STATUS 0x10
  45
  46 struct vx_rmh {
  47         u16     LgCmd;          /* length of the command to send (WORDs) */
  48         u16     LgStat;         /* length of the status received (WORDs) */
  49         u32     Cmd[SIZE_MAX_CMD];
  50         u32     Stat[SIZE_MAX_STATUS];
  51         u16     DspStat;        /* status type, RMP_SSIZE_XXX */
  52 };
  53
  54 typedef u64 pcx_time_t;
  55
  56 #define VX_MAX_PIPES    16
  57 #define VX_MAX_PERIODS  32
  58 #define VX_MAX_CODECS   2
  59
  60 struct vx_ibl_info {
  61         int size;       /* the current IBL size (0 = query) in bytes */
  62         int max_size;   /* max. IBL size in bytes */
  63         int min_size;   /* min. IBL size in bytes */
  64         int granularity;        /* granularity */
  65 };
  66
  67 struct vx_pipe {
  68         int number;
  69         unsigned int is_capture: 1;
  70         unsigned int data_mode: 1;
  71         unsigned int running: 1;
  72         unsigned int prepared: 1;
  73         int channels;
  74         unsigned int differed_type;
  75         pcx_time_t pcx_time;
  76         struct snd_pcm_substream *substream;
  77
  78         int hbuf_size;          /* H-buffer size in bytes */
  79         int buffer_bytes;       /* the ALSA pcm buffer size in bytes */
  80         int period_bytes;       /* the ALSA pcm period size in bytes */
  81         int hw_ptr;             /* the current hardware pointer in bytes */
  82         int position;           /* the current position in frames (playback only) */
  83         int transferred;        /* the transferred size (per period) in frames */
  84         int align;              /* size of alignment */
  85         u64 cur_count;          /* current sample position (for playback) */
  86
  87         unsigned int references;     /* an output pipe may be used for monitoring and/or playback */
  88         struct vx_pipe *monitoring_pipe;  /* pointer to the monitoring pipe (capture pipe only)*/
  89
  90         struct tasklet_struct start_tq;
  91 };
  92
  93 struct vx_core;
  94
  95 struct snd_vx_ops {
  96         /* low-level i/o */
  97         unsigned char (*in8)(struct vx_core *chip, int reg);
  98         unsigned int (*in32)(struct vx_core *chip, int reg);
  99         void (*out8)(struct vx_core *chip, int reg, unsigned char val);
 100         void (*out32)(struct vx_core *chip, int reg, unsigned int val);
 101         /* irq */
 102         int (*test_and_ack)(struct vx_core *chip);
 103         void (*validate_irq)(struct vx_core *chip, int enable);
 104         /* codec */
 105         void (*write_codec)(struct vx_core *chip, int codec, unsigned int data);
 106         void (*akm_write)(struct vx_core *chip, int reg, unsigned int data);
 107         void (*reset_codec)(struct vx_core *chip);
 108         void (*change_audio_source)(struct vx_core *chip, int src);
 109         void (*set_clock_source)(struct vx_core *chp, int src);
 110         /* chip init */
 111         int (*load_dsp)(struct vx_core *chip, int idx, const struct firmware *fw);
 112         void (*reset_dsp)(struct vx_core *chip);
 113         void (*reset_board)(struct vx_core *chip, int cold_reset);
 114         int (*add_controls)(struct vx_core *chip);
 115         /* pcm */
 116         void (*dma_write)(struct vx_core *chip, struct snd_pcm_runtime *runtime,
 117                           struct vx_pipe *pipe, int count);
 118         void (*dma_read)(struct vx_core *chip, struct snd_pcm_runtime *runtime,
 119                           struct vx_pipe *pipe, int count);
 120 };
 121
 122 struct snd_vx_hardware {
 123         const char *name;
 124         int type;       /* VX_TYPE_XXX */
 125
 126         /* hardware specs */
 127         unsigned int num_codecs;
 128         unsigned int num_ins;
 129         unsigned int num_outs;
 130         unsigned int output_level_max;
 131 };
 132
 133 /* hwdep id string */
 134 #define SND_VX_HWDEP_ID         "VX Loader"
 135
 136 /* hardware type */
 137 enum {
 138         /* VX222 PCI */
 139         VX_TYPE_BOARD,          /* old VX222 PCI */
 140         VX_TYPE_V2,             /* VX222 V2 PCI */
 141         VX_TYPE_MIC,            /* VX222 Mic PCI */
 142         /* VX-pocket */
 143         VX_TYPE_VXPOCKET,       /* VXpocket V2 */
 144         VX_TYPE_VXP440,         /* VXpocket 440 */
 145         VX_TYPE_NUMS
 146 };
 147
 148 /* chip status */
 149 enum {
 150         VX_STAT_XILINX_LOADED   = (1 << 0),     /* devices are registered */
 151         VX_STAT_DEVICE_INIT     = (1 << 1),     /* devices are registered */
 152         VX_STAT_CHIP_INIT       = (1 << 2),     /* all operational */
 153         VX_STAT_IN_SUSPEND      = (1 << 10),    /* in suspend phase */
 154         VX_STAT_IS_STALE        = (1 << 15)     /* device is stale */
 155 };
 156
 157 /* min/max values for analog output for old codecs */
 158 #define VX_ANALOG_OUT_LEVEL_MAX         0xe3
 159
 160 struct vx_core {
 161         /* ALSA stuff */
 162         struct snd_card *card;
 163         struct snd_pcm *pcm[VX_MAX_CODECS];
 164         int type;       /* VX_TYPE_XXX */
 165
 166         int irq;
 167         /* ports are defined externally */
 168
 169         /* low-level functions */
 170         struct snd_vx_hardware *hw;
 171         struct snd_vx_ops *ops;
 172
 173         spinlock_t lock;
 174         spinlock_t irq_lock;
 175         struct tasklet_struct tq;
 176
 177         unsigned int chip_status;
 178         unsigned int pcm_running;
 179
 180         struct device *dev;
 181         struct snd_hwdep *hwdep;
 182
 183         struct vx_rmh irq_rmh;  /* RMH used in interrupts */
 184
 185         unsigned int audio_info; /* see VX_AUDIO_INFO */
 186         unsigned int audio_ins;
 187         unsigned int audio_outs;
 188         struct vx_pipe **playback_pipes;
 189         struct vx_pipe **capture_pipes;
 190
 191         /* clock and audio sources */
 192         unsigned int audio_source;      /* current audio input source */
 193         unsigned int audio_source_target;
 194         unsigned int clock_mode;        /* clock mode (VX_CLOCK_MODE_XXX) */
 195         unsigned int clock_source;      /* current clock source (INTERNAL_QUARTZ or UER_SYNC) */
 196         unsigned int freq;              /* current frequency */
 197         unsigned int freq_detected;     /* detected frequency from digital in */
 198         unsigned int uer_detected;      /* VX_UER_MODE_XXX */
 199         unsigned int uer_bits;  /* IEC958 status bits */
 200         struct vx_ibl_info ibl; /* IBL information */
 201
 202         /* mixer setting */
 203         int output_level[VX_MAX_CODECS][2];     /* analog output level */
 204         int audio_gain[2][4];                   /* digital audio level (playback/capture) */
 205         unsigned char audio_active[4];          /* mute/unmute on digital playback */
 206         int audio_monitor[4];                   /* playback hw-monitor level */
 207         unsigned char audio_monitor_active[4];  /* playback hw-monitor mute/unmute */
 208
 209         struct semaphore mixer_mutex;
 210
 211         const struct firmware *firmware[4]; /* loaded firmware data */
 212 };
 213
 214
 215 /*
 216  * constructor
 217  */
 218 struct vx_core *snd_vx_create(struct snd_card *card, struct snd_vx_hardware *hw,
 219                               struct snd_vx_ops *ops, int extra_size);
 220 int snd_vx_setup_firmware(struct vx_core *chip);
 221 int snd_vx_load_boot_image(struct vx_core *chip, const struct firmware *dsp);
 222 int snd_vx_dsp_boot(struct vx_core *chip, const struct firmware *dsp);
 223 int snd_vx_dsp_load(struct vx_core *chip, const struct firmware *dsp);
 224
 225 void snd_vx_free_firmware(struct vx_core *chip);
 226
 227 /*
 228  * interrupt handler; exported for pcmcia
 229  */
 230 irqreturn_t snd_vx_irq_handler(int irq, void *dev, struct pt_regs *regs);
 231
 232 /*
 233  * lowlevel functions
 234  */
 235 static inline int vx_test_and_ack(struct vx_core *chip)
 236 {
 237         snd_assert(chip->ops->test_and_ack, return -ENXIO);
 238         return chip->ops->test_and_ack(chip);
 239 }
 240
 241 static inline void vx_validate_irq(struct vx_core *chip, int enable)
 242 {
 243         snd_assert(chip->ops->validate_irq, return);
 244         chip->ops->validate_irq(chip, enable);
 245 }
 246
 247 static inline unsigned char snd_vx_inb(struct vx_core *chip, int reg)
 248 {
 249         snd_assert(chip->ops->in8, return 0);
 250         return chip->ops->in8(chip, reg);
 251 }
 252
 253 static inline unsigned int snd_vx_inl(struct vx_core *chip, int reg)
 254 {
 255         snd_assert(chip->ops->in32, return 0);
 256         return chip->ops->in32(chip, reg);
 257 }
 258
 259 static inline void snd_vx_outb(struct vx_core *chip, int reg, unsigned char val)
 260 {
 261         snd_assert(chip->ops->out8, return);
 262         chip->ops->out8(chip, reg, val);
 263 }
 264
 265 static inline void snd_vx_outl(struct vx_core *chip, int reg, unsigned int val)
 266 {
 267         snd_assert(chip->ops->out32, return);
 268         chip->ops->out32(chip, reg, val);
 269 }
 270
 271 #define vx_inb(chip,reg)        snd_vx_inb(chip, VX_##reg)
 272 #define vx_outb(chip,reg,val)   snd_vx_outb(chip, VX_##reg,val)
 273 #define vx_inl(chip,reg)        snd_vx_inl(chip, VX_##reg)
 274 #define vx_outl(chip,reg,val)   snd_vx_outl(chip, VX_##reg,val)
 275
 276 static inline void vx_reset_dsp(struct vx_core *chip)
 277 {
 278         snd_assert(chip->ops->reset_dsp, return);
 279         chip->ops->reset_dsp(chip);
 280 }
 281
 282 int vx_send_msg(struct vx_core *chip, struct vx_rmh *rmh);
 283 int vx_send_msg_nolock(struct vx_core *chip, struct vx_rmh *rmh);
 284 int vx_send_rih(struct vx_core *chip, int cmd);
 285 int vx_send_rih_nolock(struct vx_core *chip, int cmd);
 286
 287 void vx_reset_codec(struct vx_core *chip, int cold_reset);
 288
 289 /*
 290  * check the bit on the specified register
 291  * returns zero if a bit matches, or a negative error code.
 292  * exported for vxpocket driver
 293  */
 294 int snd_vx_check_reg_bit(struct vx_core *chip, int reg, int mask, int bit, int time);
 295 #define vx_check_isr(chip,mask,bit,time) snd_vx_check_reg_bit(chip, VX_ISR, mask, bit, time)
 296 #define vx_wait_isr_bit(chip,bit) vx_check_isr(chip, bit, bit, 200)
 297 #define vx_wait_for_rx_full(chip) vx_wait_isr_bit(chip, ISR_RX_FULL)
 298
 299
 300 /*
 301  * pseudo-DMA transfer
 302  */
 303 static inline void vx_pseudo_dma_write(struct vx_core *chip, struct snd_pcm_runtime *runtime,
 304                                        struct vx_pipe *pipe, int count)
 305 {
 306         snd_assert(chip->ops->dma_write, return);
 307         chip->ops->dma_write(chip, runtime, pipe, count);
 308 }
 309
 310 static inline void vx_pseudo_dma_read(struct vx_core *chip, struct snd_pcm_runtime *runtime,
 311                                       struct vx_pipe *pipe, int count)
 312 {
 313         snd_assert(chip->ops->dma_read, return);
 314         chip->ops->dma_read(chip, runtime, pipe, count);
 315 }
 316
 317
 318
 319 /* error with hardware code,
 320  * the return value is -(VX_ERR_MASK | actual-hw-error-code)
 321  */
 322 #define VX_ERR_MASK     0x1000000
 323 #define vx_get_error(err)       (-(err) & ~VX_ERR_MASK)
 324
 325
 326 /*
 327  * pcm stuff
 328  */
 329 int snd_vx_pcm_new(struct vx_core *chip);
 330 void vx_pcm_update_intr(struct vx_core *chip, unsigned int events);
 331
 332 /*
 333  * mixer stuff
 334  */
 335 int snd_vx_mixer_new(struct vx_core *chip);
 336 void vx_toggle_dac_mute(struct vx_core *chip, int mute);
 337 int vx_sync_audio_source(struct vx_core *chip);
 338 int vx_set_monitor_level(struct vx_core *chip, int audio, int level, int active);
 339
 340 /*
 341  * IEC958 & clock stuff
 342  */
 343 void vx_set_iec958_status(struct vx_core *chip, unsigned int bits);
 344 int vx_set_clock(struct vx_core *chip, unsigned int freq);
 345 void vx_set_internal_clock(struct vx_core *chip, unsigned int freq);
 346 int vx_change_frequency(struct vx_core *chip);
 347
 348
 349 /*
 350  * PM
 351  */
 352 int snd_vx_suspend(struct vx_core *card, pm_message_t state);
 353 int snd_vx_resume(struct vx_core *card);
 354
 355 /*
 356  * hardware constants
 357  */
 358
 359 #define vx_has_new_dsp(chip)    ((chip)->type != VX_TYPE_BOARD)
 360 #define vx_is_pcmcia(chip)      ((chip)->type >= VX_TYPE_VXPOCKET)
 361
 362 /* audio input source */
 363 enum {
 364         VX_AUDIO_SRC_DIGITAL,
 365         VX_AUDIO_SRC_LINE,
 366         VX_AUDIO_SRC_MIC
 367 };
 368
 369 /* clock source */
 370 enum {
 371         INTERNAL_QUARTZ,
 372         UER_SYNC
 373 };
 374
 375 /* clock mode */
 376 enum {
 377         VX_CLOCK_MODE_AUTO,     /* depending on the current audio source */
 378         VX_CLOCK_MODE_INTERNAL, /* fixed to internal quartz */
 379         VX_CLOCK_MODE_EXTERNAL  /* fixed to UER sync */
 380 };
 381
 382 /* SPDIF/UER type */
 383 enum {
 384         VX_UER_MODE_CONSUMER,
 385         VX_UER_MODE_PROFESSIONAL,
 386         VX_UER_MODE_NOT_PRESENT,
 387 };
 388
 389 /* register indices */
 390 enum {
 391         VX_ICR,
 392         VX_CVR,
 393         VX_ISR,
 394         VX_IVR,
 395         VX_RXH,
 396         VX_TXH = VX_RXH,
 397         VX_RXM,
 398         VX_TXM = VX_RXM,
 399         VX_RXL,
 400         VX_TXL = VX_RXL,
 401         VX_DMA,
 402         VX_CDSP,
 403         VX_RFREQ,
 404         VX_RUER_V2,
 405         VX_GAIN,
 406         VX_DATA = VX_GAIN,
 407         VX_MEMIRQ,
 408         VX_ACQ,
 409         VX_BIT0,
 410         VX_BIT1,
 411         VX_MIC0,
 412         VX_MIC1,
 413         VX_MIC2,
 414         VX_MIC3,
 415         VX_PLX0,
 416         VX_PLX1,
 417         VX_PLX2,
 418
 419         VX_LOFREQ,  // V2: ACQ, VP: RFREQ
 420         VX_HIFREQ,  // V2: BIT0, VP: RUER_V2
 421         VX_CSUER,   // V2: BIT1, VP: BIT0
 422         VX_RUER,    // V2: RUER_V2, VP: BIT1
 423
 424         VX_REG_MAX,
 425
 426         /* aliases for VX board */
 427         VX_RESET_DMA = VX_ISR,
 428         VX_CFG = VX_RFREQ,
 429         VX_STATUS = VX_MEMIRQ,
 430         VX_SELMIC = VX_MIC0,
 431         VX_COMPOT = VX_MIC1,
 432         VX_SCOMPR = VX_MIC2,
 433         VX_GLIMIT = VX_MIC3,
 434         VX_INTCSR = VX_PLX0,
 435         VX_CNTRL = VX_PLX1,
 436         VX_GPIOC = VX_PLX2,
 437
 438         /* aliases for VXPOCKET board */
 439         VX_MICRO = VX_MEMIRQ,
 440         VX_CODEC2 = VX_MEMIRQ,
 441         VX_DIALOG = VX_ACQ,
 442
 443 };
 444
 445 /* RMH status type */
 446 enum {
 447         RMH_SSIZE_FIXED = 0,    /* status size given by the driver (in LgStat) */
 448         RMH_SSIZE_ARG = 1,      /* status size given in the LSB byte */
 449         RMH_SSIZE_MASK = 2,     /* status size given in bitmask */
 450 };
 451
 452
 453 /* bits for ICR register */
 454 #define ICR_HF1         0x10
 455 #define ICR_HF0         0x08
 456 #define ICR_TREQ        0x02    /* Interrupt mode + HREQ set on for transfer (->DSP) request */
 457 #define ICR_RREQ        0x01    /* Interrupt mode + RREQ set on for transfer (->PC) request */
 458
 459 /* bits for CVR register */
 460 #define CVR_HC          0x80
 461
 462 /* bits for ISR register */
 463 #define ISR_HF3         0x10
 464 #define ISR_HF2         0x08
 465 #define ISR_CHK         0x10
 466 #define ISR_ERR         0x08
 467 #define ISR_TX_READY    0x04
 468 #define ISR_TX_EMPTY    0x02
 469 #define ISR_RX_FULL     0x01
 470
 471 /* Constants used to access the DATA register */
 472 #define VX_DATA_CODEC_MASK      0x80
 473 #define VX_DATA_XICOR_MASK      0x80
 474
 475 /* Constants used to access the CSUER register (both for VX2 and VXP) */
 476 #define VX_SUER_FREQ_MASK               0x0c
 477 #define VX_SUER_FREQ_32KHz_MASK         0x0c
 478 #define VX_SUER_FREQ_44KHz_MASK         0x00
 479 #define VX_SUER_FREQ_48KHz_MASK         0x04
 480 #define VX_SUER_DATA_PRESENT_MASK       0x02
 481 #define VX_SUER_CLOCK_PRESENT_MASK      0x01
 482
 483 #define VX_CUER_HH_BITC_SEL_MASK        0x08
 484 #define VX_CUER_MH_BITC_SEL_MASK        0x04
 485 #define VX_CUER_ML_BITC_SEL_MASK        0x02
 486 #define VX_CUER_LL_BITC_SEL_MASK        0x01
 487
 488 #define XX_UER_CBITS_OFFSET_MASK        0x1f
 489
 490
 491 /* bits for audio_info */
 492 #define VX_AUDIO_INFO_REAL_TIME (1<<0)  /* real-time processing available */
 493 #define VX_AUDIO_INFO_OFFLINE   (1<<1)  /* offline processing available */
 494 #define VX_AUDIO_INFO_MPEG1     (1<<5)
 495 #define VX_AUDIO_INFO_MPEG2     (1<<6)
 496 #define VX_AUDIO_INFO_LINEAR_8  (1<<7)
 497 #define VX_AUDIO_INFO_LINEAR_16 (1<<8)
 498 #define VX_AUDIO_INFO_LINEAR_24 (1<<9)
 499
 500 /* DSP Interrupt Request values */
 501 #define VXP_IRQ_OFFSET          0x40 /* add 0x40 offset for vxpocket and vx222/v2 */
 502 /* call with vx_send_irq_dsp() */
 503 #define IRQ_MESS_WRITE_END          0x30
 504 #define IRQ_MESS_WRITE_NEXT         0x32
 505 #define IRQ_MESS_READ_NEXT          0x34
 506 #define IRQ_MESS_READ_END           0x36
 507 #define IRQ_MESSAGE                 0x38
 508 #define IRQ_RESET_CHK               0x3A
 509 #define IRQ_CONNECT_STREAM_NEXT     0x26
 510 #define IRQ_CONNECT_STREAM_END      0x28
 511 #define IRQ_PAUSE_START_CONNECT     0x2A
 512 #define IRQ_END_CONNECTION          0x2C
 513
 514 /* Is there async. events pending ( IT Source Test ) */
 515 #define ASYNC_EVENTS_PENDING            0x008000
 516 #define HBUFFER_EVENTS_PENDING          0x004000   // Not always accurate
 517 #define NOTIF_EVENTS_PENDING            0x002000
 518 #define TIME_CODE_EVENT_PENDING         0x001000
 519 #define FREQUENCY_CHANGE_EVENT_PENDING  0x000800
 520 #define END_OF_BUFFER_EVENTS_PENDING    0x000400
 521 #define FATAL_DSP_ERROR                 0xff0000
 522
 523 /* Stream Format Header Defines */
 524 #define HEADER_FMT_BASE                 0xFED00000
 525 #define HEADER_FMT_MONO                 0x000000C0
 526 #define HEADER_FMT_INTEL                0x00008000
 527 #define HEADER_FMT_16BITS               0x00002000
 528 #define HEADER_FMT_24BITS               0x00004000
 529 #define HEADER_FMT_UPTO11               0x00000200      /* frequency is less or equ. to 11k.*/
 530 #define HEADER_FMT_UPTO32               0x00000100      /* frequency is over 11k and less then 32k.*/
 531
 532 /* Constants used to access the Codec */
 533 #define XX_CODEC_SELECTOR               0x20
 534 /* codec commands */
 535 #define XX_CODEC_ADC_CONTROL_REGISTER   0x01
 536 #define XX_CODEC_DAC_CONTROL_REGISTER   0x02
 537 #define XX_CODEC_LEVEL_LEFT_REGISTER    0x03
 538 #define XX_CODEC_LEVEL_RIGHT_REGISTER   0x04
 539 #define XX_CODEC_PORT_MODE_REGISTER     0x05
 540 #define XX_CODEC_STATUS_REPORT_REGISTER 0x06
 541 #define XX_CODEC_CLOCK_CONTROL_REGISTER 0x07
 542
 543 /*
 544  * Audio-level control values
 545  */
 546 #define CVAL_M110DB             0x000   /* -110dB */
 547 #define CVAL_M99DB              0x02C
 548 #define CVAL_M21DB              0x163
 549 #define CVAL_M18DB              0x16F
 550 #define CVAL_M10DB              0x18F
 551 #define CVAL_0DB                0x1B7
 552 #define CVAL_18DB               0x1FF   /* +18dB */
 553 #define CVAL_MAX                0x1FF
 554
 555 #define AUDIO_IO_HAS_MUTE_LEVEL                 0x400000
 556 #define AUDIO_IO_HAS_MUTE_MONITORING_1          0x200000
 557 #define AUDIO_IO_HAS_MUTE_MONITORING_2          0x100000
 558 #define VALID_AUDIO_IO_DIGITAL_LEVEL            0x01
 559 #define VALID_AUDIO_IO_MONITORING_LEVEL         0x02
 560 #define VALID_AUDIO_IO_MUTE_LEVEL               0x04
 561 #define VALID_AUDIO_IO_MUTE_MONITORING_1        0x08
 562 #define VALID_AUDIO_IO_MUTE_MONITORING_2        0x10
 563
 564
 565 #endif /* __SOUND_VX_COMMON_H */