LXR linux/include/uapi/sound/asound.h

   1/*
   2 *  Advanced Linux Sound Architecture - ALSA - Driver
   3 *  Copyright (c) 1994-2003 by Jaroslav Kysela <perex@perex.cz>,
   4 *                             Abramo Bagnara <abramo@alsa-project.org>
   5 *
   6 *
   7 *   This program is free software; you can redistribute it and/or modify
   8 *   it under the terms of the GNU General Public License as published by
   9 *   the Free Software Foundation; either version 2 of the License, or
  10 *   (at your option) any later version.
  11 *
  12 *   This program is distributed in the hope that it will be useful,
  13 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 *   GNU General Public License for more details.
  16 *
  17 *   You should have received a copy of the GNU General Public License
  18 *   along with this program; if not, write to the Free Software
  19 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  20 *
  21 */
  22
  23#ifndef _UAPI__SOUND_ASOUND_H
  24#define _UAPI__SOUND_ASOUND_H
  25
  26#include <linux/types.h>
  27
  28
  29/*
  30 *  protocol version
  31 */
  32
  33#define SNDRV_PROTOCOL_VERSION(major, minor, subminor) (((major)<<16)|((minor)<<8)|(subminor))
  34#define SNDRV_PROTOCOL_MAJOR(version) (((version)>>16)&0xffff)
  35#define SNDRV_PROTOCOL_MINOR(version) (((version)>>8)&0xff)
  36#define SNDRV_PROTOCOL_MICRO(version) ((version)&0xff)
  37#define SNDRV_PROTOCOL_INCOMPATIBLE(kversion, uversion) \
  38        (SNDRV_PROTOCOL_MAJOR(kversion) != SNDRV_PROTOCOL_MAJOR(uversion) || \
  39         (SNDRV_PROTOCOL_MAJOR(kversion) == SNDRV_PROTOCOL_MAJOR(uversion) && \
  40           SNDRV_PROTOCOL_MINOR(kversion) != SNDRV_PROTOCOL_MINOR(uversion)))
  41
  42/****************************************************************************
  43 *                                                                          *
  44 *        Digital audio interface                                           *
  45 *                                                                          *
  46 ****************************************************************************/
  47
  48struct snd_aes_iec958 {
  49        unsigned char status[24];       /* AES/IEC958 channel status bits */
  50        unsigned char subcode[147];     /* AES/IEC958 subcode bits */
  51        unsigned char pad;              /* nothing */
  52        unsigned char dig_subframe[4];  /* AES/IEC958 subframe bits */
  53};
  54
  55/****************************************************************************
  56 *                                                                          *
  57 *        CEA-861 Audio InfoFrame. Used in HDMI and DisplayPort             *
  58 *                                                                          *
  59 ****************************************************************************/
  60
  61struct snd_cea_861_aud_if {
  62        unsigned char db1_ct_cc; /* coding type and channel count */
  63        unsigned char db2_sf_ss; /* sample frequency and size */
  64        unsigned char db3; /* not used, all zeros */
  65        unsigned char db4_ca; /* channel allocation code */
  66        unsigned char db5_dminh_lsv; /* downmix inhibit & level-shit values */
  67};
  68
  69/****************************************************************************
  70 *                                                                          *
  71 *      Section for driver hardware dependent interface - /dev/snd/hw?      *
  72 *                                                                          *
  73 ****************************************************************************/
  74
  75#define SNDRV_HWDEP_VERSION             SNDRV_PROTOCOL_VERSION(1, 0, 1)
  76
  77enum {
  78        SNDRV_HWDEP_IFACE_OPL2 = 0,
  79        SNDRV_HWDEP_IFACE_OPL3,
  80        SNDRV_HWDEP_IFACE_OPL4,
  81        SNDRV_HWDEP_IFACE_SB16CSP,      /* Creative Signal Processor */
  82        SNDRV_HWDEP_IFACE_EMU10K1,      /* FX8010 processor in EMU10K1 chip */
  83        SNDRV_HWDEP_IFACE_YSS225,       /* Yamaha FX processor */
  84        SNDRV_HWDEP_IFACE_ICS2115,      /* Wavetable synth */
  85        SNDRV_HWDEP_IFACE_SSCAPE,       /* Ensoniq SoundScape ISA card (MC68EC000) */
  86        SNDRV_HWDEP_IFACE_VX,           /* Digigram VX cards */
  87        SNDRV_HWDEP_IFACE_MIXART,       /* Digigram miXart cards */
  88        SNDRV_HWDEP_IFACE_USX2Y,        /* Tascam US122, US224 & US428 usb */
  89        SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */  
  90        SNDRV_HWDEP_IFACE_BLUETOOTH,    /* Bluetooth audio */
  91        SNDRV_HWDEP_IFACE_USX2Y_PCM,    /* Tascam US122, US224 & US428 rawusb pcm */
  92        SNDRV_HWDEP_IFACE_PCXHR,        /* Digigram PCXHR */
  93        SNDRV_HWDEP_IFACE_SB_RC,        /* SB Extigy/Audigy2NX remote control */
  94        SNDRV_HWDEP_IFACE_HDA,          /* HD-audio */
  95        SNDRV_HWDEP_IFACE_USB_STREAM,   /* direct access to usb stream */
  96
  97        /* Don't forget to change the following: */
  98        SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_USB_STREAM
  99};
 100
 101struct snd_hwdep_info {
 102        unsigned int device;            /* WR: device number */
 103        int card;                       /* R: card number */
 104        unsigned char id[64];           /* ID (user selectable) */
 105        unsigned char name[80];         /* hwdep name */
 106        int iface;                      /* hwdep interface */
 107        unsigned char reserved[64];     /* reserved for future */
 108};
 109
 110/* generic DSP loader */
 111struct snd_hwdep_dsp_status {
 112        unsigned int version;           /* R: driver-specific version */
 113        unsigned char id[32];           /* R: driver-specific ID string */
 114        unsigned int num_dsps;          /* R: number of DSP images to transfer */
 115        unsigned int dsp_loaded;        /* R: bit flags indicating the loaded DSPs */
 116        unsigned int chip_ready;        /* R: 1 = initialization finished */
 117        unsigned char reserved[16];     /* reserved for future use */
 118};
 119
 120struct snd_hwdep_dsp_image {
 121        unsigned int index;             /* W: DSP index */
 122        unsigned char name[64];         /* W: ID (e.g. file name) */
 123        unsigned char __user *image;    /* W: binary image */
 124        size_t length;                  /* W: size of image in bytes */
 125        unsigned long driver_data;      /* W: driver-specific data */
 126};
 127
 128#define SNDRV_HWDEP_IOCTL_PVERSION      _IOR ('H', 0x00, int)
 129#define SNDRV_HWDEP_IOCTL_INFO          _IOR ('H', 0x01, struct snd_hwdep_info)
 130#define SNDRV_HWDEP_IOCTL_DSP_STATUS    _IOR('H', 0x02, struct snd_hwdep_dsp_status)
 131#define SNDRV_HWDEP_IOCTL_DSP_LOAD      _IOW('H', 0x03, struct snd_hwdep_dsp_image)
 132
 133/*****************************************************************************
 134 *                                                                           *
 135 *             Digital Audio (PCM) interface - /dev/snd/pcm??                *
 136 *                                                                           *
 137 *****************************************************************************/
 138
 139#define SNDRV_PCM_VERSION               SNDRV_PROTOCOL_VERSION(2, 0, 11)
 140
 141typedef unsigned long snd_pcm_uframes_t;
 142typedef signed long snd_pcm_sframes_t;
 143
 144enum {
 145        SNDRV_PCM_CLASS_GENERIC = 0,    /* standard mono or stereo device */
 146        SNDRV_PCM_CLASS_MULTI,          /* multichannel device */
 147        SNDRV_PCM_CLASS_MODEM,          /* software modem class */
 148        SNDRV_PCM_CLASS_DIGITIZER,      /* digitizer class */
 149        /* Don't forget to change the following: */
 150        SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER,
 151};
 152
 153enum {
 154        SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, /* mono or stereo subdevices are mixed together */
 155        SNDRV_PCM_SUBCLASS_MULTI_MIX,   /* multichannel subdevices are mixed together */
 156        /* Don't forget to change the following: */
 157        SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX,
 158};
 159
 160enum {
 161        SNDRV_PCM_STREAM_PLAYBACK = 0,
 162        SNDRV_PCM_STREAM_CAPTURE,
 163        SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE,
 164};
 165
 166typedef int __bitwise snd_pcm_access_t;
 167#define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED       ((__force snd_pcm_access_t) 0) /* interleaved mmap */
 168#define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED    ((__force snd_pcm_access_t) 1) /* noninterleaved mmap */
 169#define SNDRV_PCM_ACCESS_MMAP_COMPLEX           ((__force snd_pcm_access_t) 2) /* complex mmap */
 170#define SNDRV_PCM_ACCESS_RW_INTERLEAVED         ((__force snd_pcm_access_t) 3) /* readi/writei */
 171#define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED      ((__force snd_pcm_access_t) 4) /* readn/writen */
 172#define SNDRV_PCM_ACCESS_LAST           SNDRV_PCM_ACCESS_RW_NONINTERLEAVED
 173
 174typedef int __bitwise snd_pcm_format_t;
 175#define SNDRV_PCM_FORMAT_S8     ((__force snd_pcm_format_t) 0)
 176#define SNDRV_PCM_FORMAT_U8     ((__force snd_pcm_format_t) 1)
 177#define SNDRV_PCM_FORMAT_S16_LE ((__force snd_pcm_format_t) 2)
 178#define SNDRV_PCM_FORMAT_S16_BE ((__force snd_pcm_format_t) 3)
 179#define SNDRV_PCM_FORMAT_U16_LE ((__force snd_pcm_format_t) 4)
 180#define SNDRV_PCM_FORMAT_U16_BE ((__force snd_pcm_format_t) 5)
 181#define SNDRV_PCM_FORMAT_S24_LE ((__force snd_pcm_format_t) 6) /* low three bytes */
 182#define SNDRV_PCM_FORMAT_S24_BE ((__force snd_pcm_format_t) 7) /* low three bytes */
 183#define SNDRV_PCM_FORMAT_U24_LE ((__force snd_pcm_format_t) 8) /* low three bytes */
 184#define SNDRV_PCM_FORMAT_U24_BE ((__force snd_pcm_format_t) 9) /* low three bytes */
 185#define SNDRV_PCM_FORMAT_S32_LE ((__force snd_pcm_format_t) 10)
 186#define SNDRV_PCM_FORMAT_S32_BE ((__force snd_pcm_format_t) 11)
 187#define SNDRV_PCM_FORMAT_U32_LE ((__force snd_pcm_format_t) 12)
 188#define SNDRV_PCM_FORMAT_U32_BE ((__force snd_pcm_format_t) 13)
 189#define SNDRV_PCM_FORMAT_FLOAT_LE       ((__force snd_pcm_format_t) 14) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */
 190#define SNDRV_PCM_FORMAT_FLOAT_BE       ((__force snd_pcm_format_t) 15) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */
 191#define SNDRV_PCM_FORMAT_FLOAT64_LE     ((__force snd_pcm_format_t) 16) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */
 192#define SNDRV_PCM_FORMAT_FLOAT64_BE     ((__force snd_pcm_format_t) 17) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */
 193#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((__force snd_pcm_format_t) 18) /* IEC-958 subframe, Little Endian */
 194#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((__force snd_pcm_format_t) 19) /* IEC-958 subframe, Big Endian */
 195#define SNDRV_PCM_FORMAT_MU_LAW         ((__force snd_pcm_format_t) 20)
 196#define SNDRV_PCM_FORMAT_A_LAW          ((__force snd_pcm_format_t) 21)
 197#define SNDRV_PCM_FORMAT_IMA_ADPCM      ((__force snd_pcm_format_t) 22)
 198#define SNDRV_PCM_FORMAT_MPEG           ((__force snd_pcm_format_t) 23)
 199#define SNDRV_PCM_FORMAT_GSM            ((__force snd_pcm_format_t) 24)
 200#define SNDRV_PCM_FORMAT_SPECIAL        ((__force snd_pcm_format_t) 31)
 201#define SNDRV_PCM_FORMAT_S24_3LE        ((__force snd_pcm_format_t) 32) /* in three bytes */
 202#define SNDRV_PCM_FORMAT_S24_3BE        ((__force snd_pcm_format_t) 33) /* in three bytes */
 203#define SNDRV_PCM_FORMAT_U24_3LE        ((__force snd_pcm_format_t) 34) /* in three bytes */
 204#define SNDRV_PCM_FORMAT_U24_3BE        ((__force snd_pcm_format_t) 35) /* in three bytes */
 205#define SNDRV_PCM_FORMAT_S20_3LE        ((__force snd_pcm_format_t) 36) /* in three bytes */
 206#define SNDRV_PCM_FORMAT_S20_3BE        ((__force snd_pcm_format_t) 37) /* in three bytes */
 207#define SNDRV_PCM_FORMAT_U20_3LE        ((__force snd_pcm_format_t) 38) /* in three bytes */
 208#define SNDRV_PCM_FORMAT_U20_3BE        ((__force snd_pcm_format_t) 39) /* in three bytes */
 209#define SNDRV_PCM_FORMAT_S18_3LE        ((__force snd_pcm_format_t) 40) /* in three bytes */
 210#define SNDRV_PCM_FORMAT_S18_3BE        ((__force snd_pcm_format_t) 41) /* in three bytes */
 211#define SNDRV_PCM_FORMAT_U18_3LE        ((__force snd_pcm_format_t) 42) /* in three bytes */
 212#define SNDRV_PCM_FORMAT_U18_3BE        ((__force snd_pcm_format_t) 43) /* in three bytes */
 213#define SNDRV_PCM_FORMAT_G723_24        ((__force snd_pcm_format_t) 44) /* 8 samples in 3 bytes */
 214#define SNDRV_PCM_FORMAT_G723_24_1B     ((__force snd_pcm_format_t) 45) /* 1 sample in 1 byte */
 215#define SNDRV_PCM_FORMAT_G723_40        ((__force snd_pcm_format_t) 46) /* 8 Samples in 5 bytes */
 216#define SNDRV_PCM_FORMAT_G723_40_1B     ((__force snd_pcm_format_t) 47) /* 1 sample in 1 byte */
 217#define SNDRV_PCM_FORMAT_DSD_U8         ((__force snd_pcm_format_t) 48) /* DSD, 1-byte samples DSD (x8) */
 218#define SNDRV_PCM_FORMAT_DSD_U16_LE     ((__force snd_pcm_format_t) 49) /* DSD, 2-byte samples DSD (x16), little endian */
 219#define SNDRV_PCM_FORMAT_LAST           SNDRV_PCM_FORMAT_DSD_U16_LE
 220
 221#ifdef SNDRV_LITTLE_ENDIAN
 222#define SNDRV_PCM_FORMAT_S16            SNDRV_PCM_FORMAT_S16_LE
 223#define SNDRV_PCM_FORMAT_U16            SNDRV_PCM_FORMAT_U16_LE
 224#define SNDRV_PCM_FORMAT_S24            SNDRV_PCM_FORMAT_S24_LE
 225#define SNDRV_PCM_FORMAT_U24            SNDRV_PCM_FORMAT_U24_LE
 226#define SNDRV_PCM_FORMAT_S32            SNDRV_PCM_FORMAT_S32_LE
 227#define SNDRV_PCM_FORMAT_U32            SNDRV_PCM_FORMAT_U32_LE
 228#define SNDRV_PCM_FORMAT_FLOAT          SNDRV_PCM_FORMAT_FLOAT_LE
 229#define SNDRV_PCM_FORMAT_FLOAT64        SNDRV_PCM_FORMAT_FLOAT64_LE
 230#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE
 231#endif
 232#ifdef SNDRV_BIG_ENDIAN
 233#define SNDRV_PCM_FORMAT_S16            SNDRV_PCM_FORMAT_S16_BE
 234#define SNDRV_PCM_FORMAT_U16            SNDRV_PCM_FORMAT_U16_BE
 235#define SNDRV_PCM_FORMAT_S24            SNDRV_PCM_FORMAT_S24_BE
 236#define SNDRV_PCM_FORMAT_U24            SNDRV_PCM_FORMAT_U24_BE
 237#define SNDRV_PCM_FORMAT_S32            SNDRV_PCM_FORMAT_S32_BE
 238#define SNDRV_PCM_FORMAT_U32            SNDRV_PCM_FORMAT_U32_BE
 239#define SNDRV_PCM_FORMAT_FLOAT          SNDRV_PCM_FORMAT_FLOAT_BE
 240#define SNDRV_PCM_FORMAT_FLOAT64        SNDRV_PCM_FORMAT_FLOAT64_BE
 241#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE
 242#endif
 243
 244typedef int __bitwise snd_pcm_subformat_t;
 245#define SNDRV_PCM_SUBFORMAT_STD         ((__force snd_pcm_subformat_t) 0)
 246#define SNDRV_PCM_SUBFORMAT_LAST        SNDRV_PCM_SUBFORMAT_STD
 247
 248#define SNDRV_PCM_INFO_MMAP             0x00000001      /* hardware supports mmap */
 249#define SNDRV_PCM_INFO_MMAP_VALID       0x00000002      /* period data are valid during transfer */
 250#define SNDRV_PCM_INFO_DOUBLE           0x00000004      /* Double buffering needed for PCM start/stop */
 251#define SNDRV_PCM_INFO_BATCH            0x00000010      /* double buffering */
 252#define SNDRV_PCM_INFO_INTERLEAVED      0x00000100      /* channels are interleaved */
 253#define SNDRV_PCM_INFO_NONINTERLEAVED   0x00000200      /* channels are not interleaved */
 254#define SNDRV_PCM_INFO_COMPLEX          0x00000400      /* complex frame organization (mmap only) */
 255#define SNDRV_PCM_INFO_BLOCK_TRANSFER   0x00010000      /* hardware transfer block of samples */
 256#define SNDRV_PCM_INFO_OVERRANGE        0x00020000      /* hardware supports ADC (capture) overrange detection */
 257#define SNDRV_PCM_INFO_RESUME           0x00040000      /* hardware supports stream resume after suspend */
 258#define SNDRV_PCM_INFO_PAUSE            0x00080000      /* pause ioctl is supported */
 259#define SNDRV_PCM_INFO_HALF_DUPLEX      0x00100000      /* only half duplex */
 260#define SNDRV_PCM_INFO_JOINT_DUPLEX     0x00200000      /* playback and capture stream are somewhat correlated */
 261#define SNDRV_PCM_INFO_SYNC_START       0x00400000      /* pcm support some kind of sync go */
 262#define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP 0x00800000      /* period wakeup can be disabled */
 263#define SNDRV_PCM_INFO_HAS_WALL_CLOCK   0x01000000      /* has audio wall clock for audio/system time sync */
 264#define SNDRV_PCM_INFO_FIFO_IN_FRAMES   0x80000000      /* internal kernel flag - FIFO size is in frames */
 265
 266typedef int __bitwise snd_pcm_state_t;
 267#define SNDRV_PCM_STATE_OPEN            ((__force snd_pcm_state_t) 0) /* stream is open */
 268#define SNDRV_PCM_STATE_SETUP           ((__force snd_pcm_state_t) 1) /* stream has a setup */
 269#define SNDRV_PCM_STATE_PREPARED        ((__force snd_pcm_state_t) 2) /* stream is ready to start */
 270#define SNDRV_PCM_STATE_RUNNING         ((__force snd_pcm_state_t) 3) /* stream is running */
 271#define SNDRV_PCM_STATE_XRUN            ((__force snd_pcm_state_t) 4) /* stream reached an xrun */
 272#define SNDRV_PCM_STATE_DRAINING        ((__force snd_pcm_state_t) 5) /* stream is draining */
 273#define SNDRV_PCM_STATE_PAUSED          ((__force snd_pcm_state_t) 6) /* stream is paused */
 274#define SNDRV_PCM_STATE_SUSPENDED       ((__force snd_pcm_state_t) 7) /* hardware is suspended */
 275#define SNDRV_PCM_STATE_DISCONNECTED    ((__force snd_pcm_state_t) 8) /* hardware is disconnected */
 276#define SNDRV_PCM_STATE_LAST            SNDRV_PCM_STATE_DISCONNECTED
 277
 278enum {
 279        SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000,
 280        SNDRV_PCM_MMAP_OFFSET_STATUS = 0x80000000,
 281        SNDRV_PCM_MMAP_OFFSET_CONTROL = 0x81000000,
 282};
 283
 284union snd_pcm_sync_id {
 285        unsigned char id[16];
 286        unsigned short id16[8];
 287        unsigned int id32[4];
 288};
 289
 290struct snd_pcm_info {
 291        unsigned int device;            /* RO/WR (control): device number */
 292        unsigned int subdevice;         /* RO/WR (control): subdevice number */
 293        int stream;                     /* RO/WR (control): stream direction */
 294        int card;                       /* R: card number */
 295        unsigned char id[64];           /* ID (user selectable) */
 296        unsigned char name[80];         /* name of this device */
 297        unsigned char subname[32];      /* subdevice name */
 298        int dev_class;                  /* SNDRV_PCM_CLASS_* */
 299        int dev_subclass;               /* SNDRV_PCM_SUBCLASS_* */
 300        unsigned int subdevices_count;
 301        unsigned int subdevices_avail;
 302        union snd_pcm_sync_id sync;     /* hardware synchronization ID */
 303        unsigned char reserved[64];     /* reserved for future... */
 304};
 305
 306typedef int snd_pcm_hw_param_t;
 307#define SNDRV_PCM_HW_PARAM_ACCESS       0       /* Access type */
 308#define SNDRV_PCM_HW_PARAM_FORMAT       1       /* Format */
 309#define SNDRV_PCM_HW_PARAM_SUBFORMAT    2       /* Subformat */
 310#define SNDRV_PCM_HW_PARAM_FIRST_MASK   SNDRV_PCM_HW_PARAM_ACCESS
 311#define SNDRV_PCM_HW_PARAM_LAST_MASK    SNDRV_PCM_HW_PARAM_SUBFORMAT
 312
 313#define SNDRV_PCM_HW_PARAM_SAMPLE_BITS  8       /* Bits per sample */
 314#define SNDRV_PCM_HW_PARAM_FRAME_BITS   9       /* Bits per frame */
 315#define SNDRV_PCM_HW_PARAM_CHANNELS     10      /* Channels */
 316#define SNDRV_PCM_HW_PARAM_RATE         11      /* Approx rate */
 317#define SNDRV_PCM_HW_PARAM_PERIOD_TIME  12      /* Approx distance between
 318                                                 * interrupts in us
 319                                                 */
 320#define SNDRV_PCM_HW_PARAM_PERIOD_SIZE  13      /* Approx frames between
 321                                                 * interrupts
 322                                                 */
 323#define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14      /* Approx bytes between
 324                                                 * interrupts
 325                                                 */
 326#define SNDRV_PCM_HW_PARAM_PERIODS      15      /* Approx interrupts per
 327                                                 * buffer
 328                                                 */
 329#define SNDRV_PCM_HW_PARAM_BUFFER_TIME  16      /* Approx duration of buffer
 330                                                 * in us
 331                                                 */
 332#define SNDRV_PCM_HW_PARAM_BUFFER_SIZE  17      /* Size of buffer in frames */
 333#define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18      /* Size of buffer in bytes */
 334#define SNDRV_PCM_HW_PARAM_TICK_TIME    19      /* Approx tick duration in us */
 335#define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL       SNDRV_PCM_HW_PARAM_SAMPLE_BITS
 336#define SNDRV_PCM_HW_PARAM_LAST_INTERVAL        SNDRV_PCM_HW_PARAM_TICK_TIME
 337
 338#define SNDRV_PCM_HW_PARAMS_NORESAMPLE  (1<<0)  /* avoid rate resampling */
 339#define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER       (1<<1)  /* export buffer */
 340#define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP    (1<<2)  /* disable period wakeups */
 341
 342struct snd_interval {
 343        unsigned int min, max;
 344        unsigned int openmin:1,
 345                     openmax:1,
 346                     integer:1,
 347                     empty:1;
 348};
 349
 350#define SNDRV_MASK_MAX  256
 351
 352struct snd_mask {
 353        __u32 bits[(SNDRV_MASK_MAX+31)/32];
 354};
 355
 356struct snd_pcm_hw_params {
 357        unsigned int flags;
 358        struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - 
 359                               SNDRV_PCM_HW_PARAM_FIRST_MASK + 1];
 360        struct snd_mask mres[5];        /* reserved masks */
 361        struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL -
 362                                        SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1];
 363        struct snd_interval ires[9];    /* reserved intervals */
 364        unsigned int rmask;             /* W: requested masks */
 365        unsigned int cmask;             /* R: changed masks */
 366        unsigned int info;              /* R: Info flags for returned setup */
 367        unsigned int msbits;            /* R: used most significant bits */
 368        unsigned int rate_num;          /* R: rate numerator */
 369        unsigned int rate_den;          /* R: rate denominator */
 370        snd_pcm_uframes_t fifo_size;    /* R: chip FIFO size in frames */
 371        unsigned char reserved[64];     /* reserved for future */
 372};
 373
 374enum {
 375        SNDRV_PCM_TSTAMP_NONE = 0,
 376        SNDRV_PCM_TSTAMP_ENABLE,
 377        SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE,
 378};
 379
 380struct snd_pcm_sw_params {
 381        int tstamp_mode;                        /* timestamp mode */
 382        unsigned int period_step;
 383        unsigned int sleep_min;                 /* min ticks to sleep */
 384        snd_pcm_uframes_t avail_min;            /* min avail frames for wakeup */
 385        snd_pcm_uframes_t xfer_align;           /* obsolete: xfer size need to be a multiple */
 386        snd_pcm_uframes_t start_threshold;      /* min hw_avail frames for automatic start */
 387        snd_pcm_uframes_t stop_threshold;       /* min avail frames for automatic stop */
 388        snd_pcm_uframes_t silence_threshold;    /* min distance from noise for silence filling */
 389        snd_pcm_uframes_t silence_size;         /* silence block size */
 390        snd_pcm_uframes_t boundary;             /* pointers wrap point */
 391        unsigned char reserved[64];             /* reserved for future */
 392};
 393
 394struct snd_pcm_channel_info {
 395        unsigned int channel;
 396        __kernel_off_t offset;          /* mmap offset */
 397        unsigned int first;             /* offset to first sample in bits */
 398        unsigned int step;              /* samples distance in bits */
 399};
 400
 401struct snd_pcm_status {
 402        snd_pcm_state_t state;          /* stream state */
 403        struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */
 404        struct timespec tstamp;         /* reference timestamp */
 405        snd_pcm_uframes_t appl_ptr;     /* appl ptr */
 406        snd_pcm_uframes_t hw_ptr;       /* hw ptr */
 407        snd_pcm_sframes_t delay;        /* current delay in frames */
 408        snd_pcm_uframes_t avail;        /* number of frames available */
 409        snd_pcm_uframes_t avail_max;    /* max frames available on hw since last status */
 410        snd_pcm_uframes_t overrange;    /* count of ADC (capture) overrange detections from last status */
 411        snd_pcm_state_t suspended_state; /* suspended stream state */
 412        __u32 reserved_alignment;       /* must be filled with zero */
 413        struct timespec audio_tstamp;   /* from sample counter or wall clock */
 414        unsigned char reserved[56-sizeof(struct timespec)]; /* must be filled with zero */
 415};
 416
 417struct snd_pcm_mmap_status {
 418        snd_pcm_state_t state;          /* RO: state - SNDRV_PCM_STATE_XXXX */
 419        int pad1;                       /* Needed for 64 bit alignment */
 420        snd_pcm_uframes_t hw_ptr;       /* RO: hw ptr (0...boundary-1) */
 421        struct timespec tstamp;         /* Timestamp */
 422        snd_pcm_state_t suspended_state; /* RO: suspended stream state */
 423        struct timespec audio_tstamp;   /* from sample counter or wall clock */
 424};
 425
 426struct snd_pcm_mmap_control {
 427        snd_pcm_uframes_t appl_ptr;     /* RW: appl ptr (0...boundary-1) */
 428        snd_pcm_uframes_t avail_min;    /* RW: min available frames for wakeup */
 429};
 430
 431#define SNDRV_PCM_SYNC_PTR_HWSYNC       (1<<0)  /* execute hwsync */
 432#define SNDRV_PCM_SYNC_PTR_APPL         (1<<1)  /* get appl_ptr from driver (r/w op) */
 433#define SNDRV_PCM_SYNC_PTR_AVAIL_MIN    (1<<2)  /* get avail_min from driver */
 434
 435struct snd_pcm_sync_ptr {
 436        unsigned int flags;
 437        union {
 438                struct snd_pcm_mmap_status status;
 439                unsigned char reserved[64];
 440        } s;
 441        union {
 442                struct snd_pcm_mmap_control control;
 443                unsigned char reserved[64];
 444        } c;
 445};
 446
 447struct snd_xferi {
 448        snd_pcm_sframes_t result;
 449        void __user *buf;
 450        snd_pcm_uframes_t frames;
 451};
 452
 453struct snd_xfern {
 454        snd_pcm_sframes_t result;
 455        void __user * __user *bufs;
 456        snd_pcm_uframes_t frames;
 457};
 458
 459enum {
 460        SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0, /* gettimeofday equivalent */
 461        SNDRV_PCM_TSTAMP_TYPE_MONOTONIC,        /* posix_clock_monotonic equivalent */
 462        SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC,
 463};
 464
 465/* channel positions */
 466enum {
 467        SNDRV_CHMAP_UNKNOWN = 0,
 468        SNDRV_CHMAP_NA,         /* N/A, silent */
 469        SNDRV_CHMAP_MONO,       /* mono stream */
 470        /* this follows the alsa-lib mixer channel value + 3 */
 471        SNDRV_CHMAP_FL,         /* front left */
 472        SNDRV_CHMAP_FR,         /* front right */
 473        SNDRV_CHMAP_RL,         /* rear left */
 474        SNDRV_CHMAP_RR,         /* rear right */
 475        SNDRV_CHMAP_FC,         /* front center */
 476        SNDRV_CHMAP_LFE,        /* LFE */
 477        SNDRV_CHMAP_SL,         /* side left */
 478        SNDRV_CHMAP_SR,         /* side right */
 479        SNDRV_CHMAP_RC,         /* rear center */
 480        /* new definitions */
 481        SNDRV_CHMAP_FLC,        /* front left center */
 482        SNDRV_CHMAP_FRC,        /* front right center */
 483        SNDRV_CHMAP_RLC,        /* rear left center */
 484        SNDRV_CHMAP_RRC,        /* rear right center */
 485        SNDRV_CHMAP_FLW,        /* front left wide */
 486        SNDRV_CHMAP_FRW,        /* front right wide */
 487        SNDRV_CHMAP_FLH,        /* front left high */
 488        SNDRV_CHMAP_FCH,        /* front center high */
 489        SNDRV_CHMAP_FRH,        /* front right high */
 490        SNDRV_CHMAP_TC,         /* top center */
 491        SNDRV_CHMAP_TFL,        /* top front left */
 492        SNDRV_CHMAP_TFR,        /* top front right */
 493        SNDRV_CHMAP_TFC,        /* top front center */
 494        SNDRV_CHMAP_TRL,        /* top rear left */
 495        SNDRV_CHMAP_TRR,        /* top rear right */
 496        SNDRV_CHMAP_TRC,        /* top rear center */
 497        /* new definitions for UAC2 */
 498        SNDRV_CHMAP_TFLC,       /* top front left center */
 499        SNDRV_CHMAP_TFRC,       /* top front right center */
 500        SNDRV_CHMAP_TSL,        /* top side left */
 501        SNDRV_CHMAP_TSR,        /* top side right */
 502        SNDRV_CHMAP_LLFE,       /* left LFE */
 503        SNDRV_CHMAP_RLFE,       /* right LFE */
 504        SNDRV_CHMAP_BC,         /* bottom center */
 505        SNDRV_CHMAP_BLC,        /* bottom left center */
 506        SNDRV_CHMAP_BRC,        /* bottom right center */
 507        SNDRV_CHMAP_LAST = SNDRV_CHMAP_BRC,
 508};
 509
 510#define SNDRV_CHMAP_POSITION_MASK       0xffff
 511#define SNDRV_CHMAP_PHASE_INVERSE       (0x01 << 16)
 512#define SNDRV_CHMAP_DRIVER_SPEC         (0x02 << 16)
 513
 514#define SNDRV_PCM_IOCTL_PVERSION        _IOR('A', 0x00, int)
 515#define SNDRV_PCM_IOCTL_INFO            _IOR('A', 0x01, struct snd_pcm_info)
 516#define SNDRV_PCM_IOCTL_TSTAMP          _IOW('A', 0x02, int)
 517#define SNDRV_PCM_IOCTL_TTSTAMP         _IOW('A', 0x03, int)
 518#define SNDRV_PCM_IOCTL_HW_REFINE       _IOWR('A', 0x10, struct snd_pcm_hw_params)
 519#define SNDRV_PCM_IOCTL_HW_PARAMS       _IOWR('A', 0x11, struct snd_pcm_hw_params)
 520#define SNDRV_PCM_IOCTL_HW_FREE         _IO('A', 0x12)
 521#define SNDRV_PCM_IOCTL_SW_PARAMS       _IOWR('A', 0x13, struct snd_pcm_sw_params)
 522#define SNDRV_PCM_IOCTL_STATUS          _IOR('A', 0x20, struct snd_pcm_status)
 523#define SNDRV_PCM_IOCTL_DELAY           _IOR('A', 0x21, snd_pcm_sframes_t)
 524#define SNDRV_PCM_IOCTL_HWSYNC          _IO('A', 0x22)
 525#define SNDRV_PCM_IOCTL_SYNC_PTR        _IOWR('A', 0x23, struct snd_pcm_sync_ptr)
 526#define SNDRV_PCM_IOCTL_CHANNEL_INFO    _IOR('A', 0x32, struct snd_pcm_channel_info)
 527#define SNDRV_PCM_IOCTL_PREPARE         _IO('A', 0x40)
 528#define SNDRV_PCM_IOCTL_RESET           _IO('A', 0x41)
 529#define SNDRV_PCM_IOCTL_START           _IO('A', 0x42)
 530#define SNDRV_PCM_IOCTL_DROP            _IO('A', 0x43)
 531#define SNDRV_PCM_IOCTL_DRAIN           _IO('A', 0x44)
 532#define SNDRV_PCM_IOCTL_PAUSE           _IOW('A', 0x45, int)
 533#define SNDRV_PCM_IOCTL_REWIND          _IOW('A', 0x46, snd_pcm_uframes_t)
 534#define SNDRV_PCM_IOCTL_RESUME          _IO('A', 0x47)
 535#define SNDRV_PCM_IOCTL_XRUN            _IO('A', 0x48)
 536#define SNDRV_PCM_IOCTL_FORWARD         _IOW('A', 0x49, snd_pcm_uframes_t)
 537#define SNDRV_PCM_IOCTL_WRITEI_FRAMES   _IOW('A', 0x50, struct snd_xferi)
 538#define SNDRV_PCM_IOCTL_READI_FRAMES    _IOR('A', 0x51, struct snd_xferi)
 539#define SNDRV_PCM_IOCTL_WRITEN_FRAMES   _IOW('A', 0x52, struct snd_xfern)
 540#define SNDRV_PCM_IOCTL_READN_FRAMES    _IOR('A', 0x53, struct snd_xfern)
 541#define SNDRV_PCM_IOCTL_LINK            _IOW('A', 0x60, int)
 542#define SNDRV_PCM_IOCTL_UNLINK          _IO('A', 0x61)
 543
 544/*****************************************************************************
 545 *                                                                           *
 546 *                            MIDI v1.0 interface                            *
 547 *                                                                           *
 548 *****************************************************************************/
 549
 550/*
 551 *  Raw MIDI section - /dev/snd/midi??
 552 */
 553
 554#define SNDRV_RAWMIDI_VERSION           SNDRV_PROTOCOL_VERSION(2, 0, 0)
 555
 556enum {
 557        SNDRV_RAWMIDI_STREAM_OUTPUT = 0,
 558        SNDRV_RAWMIDI_STREAM_INPUT,
 559        SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT,
 560};
 561
 562#define SNDRV_RAWMIDI_INFO_OUTPUT               0x00000001
 563#define SNDRV_RAWMIDI_INFO_INPUT                0x00000002
 564#define SNDRV_RAWMIDI_INFO_DUPLEX               0x00000004
 565
 566struct snd_rawmidi_info {
 567        unsigned int device;            /* RO/WR (control): device number */
 568        unsigned int subdevice;         /* RO/WR (control): subdevice number */
 569        int stream;                     /* WR: stream */
 570        int card;                       /* R: card number */
 571        unsigned int flags;             /* SNDRV_RAWMIDI_INFO_XXXX */
 572        unsigned char id[64];           /* ID (user selectable) */
 573        unsigned char name[80];         /* name of device */
 574        unsigned char subname[32];      /* name of active or selected subdevice */
 575        unsigned int subdevices_count;
 576        unsigned int subdevices_avail;
 577        unsigned char reserved[64];     /* reserved for future use */
 578};
 579
 580struct snd_rawmidi_params {
 581        int stream;
 582        size_t buffer_size;             /* queue size in bytes */
 583        size_t avail_min;               /* minimum avail bytes for wakeup */
 584        unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */
 585        unsigned char reserved[16];     /* reserved for future use */
 586};
 587
 588struct snd_rawmidi_status {
 589        int stream;
 590        struct timespec tstamp;         /* Timestamp */
 591        size_t avail;                   /* available bytes */
 592        size_t xruns;                   /* count of overruns since last status (in bytes) */
 593        unsigned char reserved[16];     /* reserved for future use */
 594};
 595
 596#define SNDRV_RAWMIDI_IOCTL_PVERSION    _IOR('W', 0x00, int)
 597#define SNDRV_RAWMIDI_IOCTL_INFO        _IOR('W', 0x01, struct snd_rawmidi_info)
 598#define SNDRV_RAWMIDI_IOCTL_PARAMS      _IOWR('W', 0x10, struct snd_rawmidi_params)
 599#define SNDRV_RAWMIDI_IOCTL_STATUS      _IOWR('W', 0x20, struct snd_rawmidi_status)
 600#define SNDRV_RAWMIDI_IOCTL_DROP        _IOW('W', 0x30, int)
 601#define SNDRV_RAWMIDI_IOCTL_DRAIN       _IOW('W', 0x31, int)
 602
 603/*
 604 *  Timer section - /dev/snd/timer
 605 */
 606
 607#define SNDRV_TIMER_VERSION             SNDRV_PROTOCOL_VERSION(2, 0, 6)
 608
 609enum {
 610        SNDRV_TIMER_CLASS_NONE = -1,
 611        SNDRV_TIMER_CLASS_SLAVE = 0,
 612        SNDRV_TIMER_CLASS_GLOBAL,
 613        SNDRV_TIMER_CLASS_CARD,
 614        SNDRV_TIMER_CLASS_PCM,
 615        SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM,
 616};
 617
 618/* slave timer classes */
 619enum {
 620        SNDRV_TIMER_SCLASS_NONE = 0,
 621        SNDRV_TIMER_SCLASS_APPLICATION,
 622        SNDRV_TIMER_SCLASS_SEQUENCER,           /* alias */
 623        SNDRV_TIMER_SCLASS_OSS_SEQUENCER,       /* alias */
 624        SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER,
 625};
 626
 627/* global timers (device member) */
 628#define SNDRV_TIMER_GLOBAL_SYSTEM       0
 629#define SNDRV_TIMER_GLOBAL_RTC          1
 630#define SNDRV_TIMER_GLOBAL_HPET         2
 631#define SNDRV_TIMER_GLOBAL_HRTIMER      3
 632
 633/* info flags */
 634#define SNDRV_TIMER_FLG_SLAVE           (1<<0)  /* cannot be controlled */
 635
 636struct snd_timer_id {
 637        int dev_class;
 638        int dev_sclass;
 639        int card;
 640        int device;
 641        int subdevice;
 642};
 643
 644struct snd_timer_ginfo {
 645        struct snd_timer_id tid;        /* requested timer ID */
 646        unsigned int flags;             /* timer flags - SNDRV_TIMER_FLG_* */
 647        int card;                       /* card number */
 648        unsigned char id[64];           /* timer identification */
 649        unsigned char name[80];         /* timer name */
 650        unsigned long reserved0;        /* reserved for future use */
 651        unsigned long resolution;       /* average period resolution in ns */
 652        unsigned long resolution_min;   /* minimal period resolution in ns */
 653        unsigned long resolution_max;   /* maximal period resolution in ns */
 654        unsigned int clients;           /* active timer clients */
 655        unsigned char reserved[32];
 656};
 657
 658struct snd_timer_gparams {
 659        struct snd_timer_id tid;        /* requested timer ID */
 660        unsigned long period_num;       /* requested precise period duration (in seconds) - numerator */
 661        unsigned long period_den;       /* requested precise period duration (in seconds) - denominator */
 662        unsigned char reserved[32];
 663};
 664
 665struct snd_timer_gstatus {
 666        struct snd_timer_id tid;        /* requested timer ID */
 667        unsigned long resolution;       /* current period resolution in ns */
 668        unsigned long resolution_num;   /* precise current period resolution (in seconds) - numerator */
 669        unsigned long resolution_den;   /* precise current period resolution (in seconds) - denominator */
 670        unsigned char reserved[32];
 671};
 672
 673struct snd_timer_select {
 674        struct snd_timer_id id; /* bind to timer ID */
 675        unsigned char reserved[32];     /* reserved */
 676};
 677
 678struct snd_timer_info {
 679        unsigned int flags;             /* timer flags - SNDRV_TIMER_FLG_* */
 680        int card;                       /* card number */
 681        unsigned char id[64];           /* timer identificator */
 682        unsigned char name[80];         /* timer name */
 683        unsigned long reserved0;        /* reserved for future use */
 684        unsigned long resolution;       /* average period resolution in ns */
 685        unsigned char reserved[64];     /* reserved */
 686};
 687
 688#define SNDRV_TIMER_PSFLG_AUTO          (1<<0)  /* auto start, otherwise one-shot */
 689#define SNDRV_TIMER_PSFLG_EXCLUSIVE     (1<<1)  /* exclusive use, precise start/stop/pause/continue */
 690#define SNDRV_TIMER_PSFLG_EARLY_EVENT   (1<<2)  /* write early event to the poll queue */
 691
 692struct snd_timer_params {
 693        unsigned int flags;             /* flags - SNDRV_MIXER_PSFLG_* */
 694        unsigned int ticks;             /* requested resolution in ticks */
 695        unsigned int queue_size;        /* total size of queue (32-1024) */
 696        unsigned int reserved0;         /* reserved, was: failure locations */
 697        unsigned int filter;            /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */
 698        unsigned char reserved[60];     /* reserved */
 699};
 700
 701struct snd_timer_status {
 702        struct timespec tstamp;         /* Timestamp - last update */
 703        unsigned int resolution;        /* current period resolution in ns */
 704        unsigned int lost;              /* counter of master tick lost */
 705        unsigned int overrun;           /* count of read queue overruns */
 706        unsigned int queue;             /* used queue size */
 707        unsigned char reserved[64];     /* reserved */
 708};
 709
 710#define SNDRV_TIMER_IOCTL_PVERSION      _IOR('T', 0x00, int)
 711#define SNDRV_TIMER_IOCTL_NEXT_DEVICE   _IOWR('T', 0x01, struct snd_timer_id)
 712#define SNDRV_TIMER_IOCTL_TREAD         _IOW('T', 0x02, int)
 713#define SNDRV_TIMER_IOCTL_GINFO         _IOWR('T', 0x03, struct snd_timer_ginfo)
 714#define SNDRV_TIMER_IOCTL_GPARAMS       _IOW('T', 0x04, struct snd_timer_gparams)
 715#define SNDRV_TIMER_IOCTL_GSTATUS       _IOWR('T', 0x05, struct snd_timer_gstatus)
 716#define SNDRV_TIMER_IOCTL_SELECT        _IOW('T', 0x10, struct snd_timer_select)
 717#define SNDRV_TIMER_IOCTL_INFO          _IOR('T', 0x11, struct snd_timer_info)
 718#define SNDRV_TIMER_IOCTL_PARAMS        _IOW('T', 0x12, struct snd_timer_params)
 719#define SNDRV_TIMER_IOCTL_STATUS        _IOR('T', 0x14, struct snd_timer_status)
 720/* The following four ioctls are changed since 1.0.9 due to confliction */
 721#define SNDRV_TIMER_IOCTL_START         _IO('T', 0xa0)
 722#define SNDRV_TIMER_IOCTL_STOP          _IO('T', 0xa1)
 723#define SNDRV_TIMER_IOCTL_CONTINUE      _IO('T', 0xa2)
 724#define SNDRV_TIMER_IOCTL_PAUSE         _IO('T', 0xa3)
 725
 726struct snd_timer_read {
 727        unsigned int resolution;
 728        unsigned int ticks;
 729};
 730
 731enum {
 732        SNDRV_TIMER_EVENT_RESOLUTION = 0,       /* val = resolution in ns */
 733        SNDRV_TIMER_EVENT_TICK,                 /* val = ticks */
 734        SNDRV_TIMER_EVENT_START,                /* val = resolution in ns */
 735        SNDRV_TIMER_EVENT_STOP,                 /* val = 0 */
 736        SNDRV_TIMER_EVENT_CONTINUE,             /* val = resolution in ns */
 737        SNDRV_TIMER_EVENT_PAUSE,                /* val = 0 */
 738        SNDRV_TIMER_EVENT_EARLY,                /* val = 0, early event */
 739        SNDRV_TIMER_EVENT_SUSPEND,              /* val = 0 */
 740        SNDRV_TIMER_EVENT_RESUME,               /* val = resolution in ns */
 741        /* master timer events for slave timer instances */
 742        SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10,
 743        SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10,
 744        SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10,
 745        SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10,
 746        SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10,
 747        SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10,
 748};
 749
 750struct snd_timer_tread {
 751        int event;
 752        struct timespec tstamp;
 753        unsigned int val;
 754};
 755
 756/****************************************************************************
 757 *                                                                          *
 758 *        Section for driver control interface - /dev/snd/control?          *
 759 *                                                                          *
 760 ****************************************************************************/
 761
 762#define SNDRV_CTL_VERSION               SNDRV_PROTOCOL_VERSION(2, 0, 7)
 763
 764struct snd_ctl_card_info {
 765        int card;                       /* card number */
 766        int pad;                        /* reserved for future (was type) */
 767        unsigned char id[16];           /* ID of card (user selectable) */
 768        unsigned char driver[16];       /* Driver name */
 769        unsigned char name[32];         /* Short name of soundcard */
 770        unsigned char longname[80];     /* name + info text about soundcard */
 771        unsigned char reserved_[16];    /* reserved for future (was ID of mixer) */
 772        unsigned char mixername[80];    /* visual mixer identification */
 773        unsigned char components[128];  /* card components / fine identification, delimited with one space (AC97 etc..) */
 774};
 775
 776typedef int __bitwise snd_ctl_elem_type_t;
 777#define SNDRV_CTL_ELEM_TYPE_NONE        ((__force snd_ctl_elem_type_t) 0) /* invalid */
 778#define SNDRV_CTL_ELEM_TYPE_BOOLEAN     ((__force snd_ctl_elem_type_t) 1) /* boolean type */
 779#define SNDRV_CTL_ELEM_TYPE_INTEGER     ((__force snd_ctl_elem_type_t) 2) /* integer type */
 780#define SNDRV_CTL_ELEM_TYPE_ENUMERATED  ((__force snd_ctl_elem_type_t) 3) /* enumerated type */
 781#define SNDRV_CTL_ELEM_TYPE_BYTES       ((__force snd_ctl_elem_type_t) 4) /* byte array */
 782#define SNDRV_CTL_ELEM_TYPE_IEC958      ((__force snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */
 783#define SNDRV_CTL_ELEM_TYPE_INTEGER64   ((__force snd_ctl_elem_type_t) 6) /* 64-bit integer type */
 784#define SNDRV_CTL_ELEM_TYPE_LAST        SNDRV_CTL_ELEM_TYPE_INTEGER64
 785
 786typedef int __bitwise snd_ctl_elem_iface_t;
 787#define SNDRV_CTL_ELEM_IFACE_CARD       ((__force snd_ctl_elem_iface_t) 0) /* global control */
 788#define SNDRV_CTL_ELEM_IFACE_HWDEP      ((__force snd_ctl_elem_iface_t) 1) /* hardware dependent device */
 789#define SNDRV_CTL_ELEM_IFACE_MIXER      ((__force snd_ctl_elem_iface_t) 2) /* virtual mixer device */
 790#define SNDRV_CTL_ELEM_IFACE_PCM        ((__force snd_ctl_elem_iface_t) 3) /* PCM device */
 791#define SNDRV_CTL_ELEM_IFACE_RAWMIDI    ((__force snd_ctl_elem_iface_t) 4) /* RawMidi device */
 792#define SNDRV_CTL_ELEM_IFACE_TIMER      ((__force snd_ctl_elem_iface_t) 5) /* timer device */
 793#define SNDRV_CTL_ELEM_IFACE_SEQUENCER  ((__force snd_ctl_elem_iface_t) 6) /* sequencer client */
 794#define SNDRV_CTL_ELEM_IFACE_LAST       SNDRV_CTL_ELEM_IFACE_SEQUENCER
 795
 796#define SNDRV_CTL_ELEM_ACCESS_READ              (1<<0)
 797#define SNDRV_CTL_ELEM_ACCESS_WRITE             (1<<1)
 798#define SNDRV_CTL_ELEM_ACCESS_READWRITE         (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE)
 799#define SNDRV_CTL_ELEM_ACCESS_VOLATILE          (1<<2)  /* control value may be changed without a notification */
 800#define SNDRV_CTL_ELEM_ACCESS_TIMESTAMP         (1<<3)  /* when was control changed */
 801#define SNDRV_CTL_ELEM_ACCESS_TLV_READ          (1<<4)  /* TLV read is possible */
 802#define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE         (1<<5)  /* TLV write is possible */
 803#define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE     (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE)
 804#define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND       (1<<6)  /* TLV command is possible */
 805#define SNDRV_CTL_ELEM_ACCESS_INACTIVE          (1<<8)  /* control does actually nothing, but may be updated */
 806#define SNDRV_CTL_ELEM_ACCESS_LOCK              (1<<9)  /* write lock */
 807#define SNDRV_CTL_ELEM_ACCESS_OWNER             (1<<10) /* write lock owner */
 808#define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK      (1<<28) /* kernel use a TLV callback */ 
 809#define SNDRV_CTL_ELEM_ACCESS_USER              (1<<29) /* user space element */
 810/* bits 30 and 31 are obsoleted (for indirect access) */
 811
 812/* for further details see the ACPI and PCI power management specification */
 813#define SNDRV_CTL_POWER_D0              0x0000  /* full On */
 814#define SNDRV_CTL_POWER_D1              0x0100  /* partial On */
 815#define SNDRV_CTL_POWER_D2              0x0200  /* partial On */
 816#define SNDRV_CTL_POWER_D3              0x0300  /* Off */
 817#define SNDRV_CTL_POWER_D3hot           (SNDRV_CTL_POWER_D3|0x0000)     /* Off, with power */
 818#define SNDRV_CTL_POWER_D3cold          (SNDRV_CTL_POWER_D3|0x0001)     /* Off, without power */
 819
 820#define SNDRV_CTL_ELEM_ID_NAME_MAXLEN   44
 821
 822struct snd_ctl_elem_id {
 823        unsigned int numid;             /* numeric identifier, zero = invalid */
 824        snd_ctl_elem_iface_t iface;     /* interface identifier */
 825        unsigned int device;            /* device/client number */
 826        unsigned int subdevice;         /* subdevice (substream) number */
 827        unsigned char name[44];         /* ASCII name of item */
 828        unsigned int index;             /* index of item */
 829};
 830
 831struct snd_ctl_elem_list {
 832        unsigned int offset;            /* W: first element ID to get */
 833        unsigned int space;             /* W: count of element IDs to get */
 834        unsigned int used;              /* R: count of element IDs set */
 835        unsigned int count;             /* R: count of all elements */
 836        struct snd_ctl_elem_id __user *pids; /* R: IDs */
 837        unsigned char reserved[50];
 838};
 839
 840struct snd_ctl_elem_info {
 841        struct snd_ctl_elem_id id;      /* W: element ID */
 842        snd_ctl_elem_type_t type;       /* R: value type - SNDRV_CTL_ELEM_TYPE_* */
 843        unsigned int access;            /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */
 844        unsigned int count;             /* count of values */
 845        __kernel_pid_t owner;           /* owner's PID of this control */
 846        union {
 847                struct {
 848                        long min;               /* R: minimum value */
 849                        long max;               /* R: maximum value */
 850                        long step;              /* R: step (0 variable) */
 851                } integer;
 852                struct {
 853                        long long min;          /* R: minimum value */
 854                        long long max;          /* R: maximum value */
 855                        long long step;         /* R: step (0 variable) */
 856                } integer64;
 857                struct {
 858                        unsigned int items;     /* R: number of items */
 859                        unsigned int item;      /* W: item number */
 860                        char name[64];          /* R: value name */
 861                        __u64 names_ptr;        /* W: names list (ELEM_ADD only) */
 862                        unsigned int names_length;
 863                } enumerated;
 864                unsigned char reserved[128];
 865        } value;
 866        union {
 867                unsigned short d[4];            /* dimensions */
 868                unsigned short *d_ptr;          /* indirect - obsoleted */
 869        } dimen;
 870        unsigned char reserved[64-4*sizeof(unsigned short)];
 871};
 872
 873struct snd_ctl_elem_value {
 874        struct snd_ctl_elem_id id;      /* W: element ID */
 875        unsigned int indirect: 1;       /* W: indirect access - obsoleted */
 876        union {
 877                union {
 878                        long value[128];
 879                        long *value_ptr;        /* obsoleted */
 880                } integer;
 881                union {
 882                        long long value[64];
 883                        long long *value_ptr;   /* obsoleted */
 884                } integer64;
 885                union {
 886                        unsigned int item[128];
 887                        unsigned int *item_ptr; /* obsoleted */
 888                } enumerated;
 889                union {
 890                        unsigned char data[512];
 891                        unsigned char *data_ptr;        /* obsoleted */
 892                } bytes;
 893                struct snd_aes_iec958 iec958;
 894        } value;                /* RO */
 895        struct timespec tstamp;
 896        unsigned char reserved[128-sizeof(struct timespec)];
 897};
 898
 899struct snd_ctl_tlv {
 900        unsigned int numid;     /* control element numeric identification */
 901        unsigned int length;    /* in bytes aligned to 4 */
 902        unsigned int tlv[0];    /* first TLV */
 903};
 904
 905#define SNDRV_CTL_IOCTL_PVERSION        _IOR('U', 0x00, int)
 906#define SNDRV_CTL_IOCTL_CARD_INFO       _IOR('U', 0x01, struct snd_ctl_card_info)
 907#define SNDRV_CTL_IOCTL_ELEM_LIST       _IOWR('U', 0x10, struct snd_ctl_elem_list)
 908#define SNDRV_CTL_IOCTL_ELEM_INFO       _IOWR('U', 0x11, struct snd_ctl_elem_info)
 909#define SNDRV_CTL_IOCTL_ELEM_READ       _IOWR('U', 0x12, struct snd_ctl_elem_value)
 910#define SNDRV_CTL_IOCTL_ELEM_WRITE      _IOWR('U', 0x13, struct snd_ctl_elem_value)
 911#define SNDRV_CTL_IOCTL_ELEM_LOCK       _IOW('U', 0x14, struct snd_ctl_elem_id)
 912#define SNDRV_CTL_IOCTL_ELEM_UNLOCK     _IOW('U', 0x15, struct snd_ctl_elem_id)
 913#define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int)
 914#define SNDRV_CTL_IOCTL_ELEM_ADD        _IOWR('U', 0x17, struct snd_ctl_elem_info)
 915#define SNDRV_CTL_IOCTL_ELEM_REPLACE    _IOWR('U', 0x18, struct snd_ctl_elem_info)
 916#define SNDRV_CTL_IOCTL_ELEM_REMOVE     _IOWR('U', 0x19, struct snd_ctl_elem_id)
 917#define SNDRV_CTL_IOCTL_TLV_READ        _IOWR('U', 0x1a, struct snd_ctl_tlv)
 918#define SNDRV_CTL_IOCTL_TLV_WRITE       _IOWR('U', 0x1b, struct snd_ctl_tlv)
 919#define SNDRV_CTL_IOCTL_TLV_COMMAND     _IOWR('U', 0x1c, struct snd_ctl_tlv)
 920#define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int)
 921#define SNDRV_CTL_IOCTL_HWDEP_INFO      _IOR('U', 0x21, struct snd_hwdep_info)
 922#define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int)
 923#define SNDRV_CTL_IOCTL_PCM_INFO        _IOWR('U', 0x31, struct snd_pcm_info)
 924#define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int)
 925#define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int)
 926#define SNDRV_CTL_IOCTL_RAWMIDI_INFO    _IOWR('U', 0x41, struct snd_rawmidi_info)
 927#define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int)
 928#define SNDRV_CTL_IOCTL_POWER           _IOWR('U', 0xd0, int)
 929#define SNDRV_CTL_IOCTL_POWER_STATE     _IOR('U', 0xd1, int)
 930
 931/*
 932 *  Read interface.
 933 */
 934
 935enum sndrv_ctl_event_type {
 936        SNDRV_CTL_EVENT_ELEM = 0,
 937        SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM,
 938};
 939
 940#define SNDRV_CTL_EVENT_MASK_VALUE      (1<<0)  /* element value was changed */
 941#define SNDRV_CTL_EVENT_MASK_INFO       (1<<1)  /* element info was changed */
 942#define SNDRV_CTL_EVENT_MASK_ADD        (1<<2)  /* element was added */
 943#define SNDRV_CTL_EVENT_MASK_TLV        (1<<3)  /* element TLV tree was changed */
 944#define SNDRV_CTL_EVENT_MASK_REMOVE     (~0U)   /* element was removed */
 945
 946struct snd_ctl_event {
 947        int type;       /* event type - SNDRV_CTL_EVENT_* */
 948        union {
 949                struct {
 950                        unsigned int mask;
 951                        struct snd_ctl_elem_id id;
 952                } elem;
 953                unsigned char data8[60];
 954        } data;
 955};
 956
 957/*
 958 *  Control names
 959 */
 960
 961#define SNDRV_CTL_NAME_NONE                             ""
 962#define SNDRV_CTL_NAME_PLAYBACK                         "Playback "
 963#define SNDRV_CTL_NAME_CAPTURE                          "Capture "
 964
 965#define SNDRV_CTL_NAME_IEC958_NONE                      ""
 966#define SNDRV_CTL_NAME_IEC958_SWITCH                    "Switch"
 967#define SNDRV_CTL_NAME_IEC958_VOLUME                    "Volume"
 968#define SNDRV_CTL_NAME_IEC958_DEFAULT                   "Default"
 969#define SNDRV_CTL_NAME_IEC958_MASK                      "Mask"
 970#define SNDRV_CTL_NAME_IEC958_CON_MASK                  "Con Mask"
 971#define SNDRV_CTL_NAME_IEC958_PRO_MASK                  "Pro Mask"
 972#define SNDRV_CTL_NAME_IEC958_PCM_STREAM                "PCM Stream"
 973#define SNDRV_CTL_NAME_IEC958(expl,direction,what)      "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what
 974
 975#endif /* _UAPI__SOUND_ASOUND_H */
 976