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#if defined(__KERNEL__) || defined(__linux__)
  27#include <linux/types.h>
  28#else
  29#include <sys/ioctl.h>
  30#endif
  31
  32#ifndef __KERNEL__
  33#include <stdlib.h>
  34#endif
  35
  36/*
  37 *  protocol version
  38 */
  39
  40#define SNDRV_PROTOCOL_VERSION(major, minor, subminor) (((major)<<16)|((minor)<<8)|(subminor))
  41#define SNDRV_PROTOCOL_MAJOR(version) (((version)>>16)&0xffff)
  42#define SNDRV_PROTOCOL_MINOR(version) (((version)>>8)&0xff)
  43#define SNDRV_PROTOCOL_MICRO(version) ((version)&0xff)
  44#define SNDRV_PROTOCOL_INCOMPATIBLE(kversion, uversion) \
  45        (SNDRV_PROTOCOL_MAJOR(kversion) != SNDRV_PROTOCOL_MAJOR(uversion) || \
  46         (SNDRV_PROTOCOL_MAJOR(kversion) == SNDRV_PROTOCOL_MAJOR(uversion) && \
  47           SNDRV_PROTOCOL_MINOR(kversion) != SNDRV_PROTOCOL_MINOR(uversion)))
  48
  49/****************************************************************************
  50 *                                                                          *
  51 *        Digital audio interface                                           *
  52 *                                                                          *
  53 ****************************************************************************/
  54
  55struct snd_aes_iec958 {
  56        unsigned char status[24];       /* AES/IEC958 channel status bits */
  57        unsigned char subcode[147];     /* AES/IEC958 subcode bits */
  58        unsigned char pad;              /* nothing */
  59        unsigned char dig_subframe[4];  /* AES/IEC958 subframe bits */
  60};
  61
  62/****************************************************************************
  63 *                                                                          *
  64 *        CEA-861 Audio InfoFrame. Used in HDMI and DisplayPort             *
  65 *                                                                          *
  66 ****************************************************************************/
  67
  68struct snd_cea_861_aud_if {
  69        unsigned char db1_ct_cc; /* coding type and channel count */
  70        unsigned char db2_sf_ss; /* sample frequency and size */
  71        unsigned char db3; /* not used, all zeros */
  72        unsigned char db4_ca; /* channel allocation code */
  73        unsigned char db5_dminh_lsv; /* downmix inhibit & level-shit values */
  74};
  75
  76/****************************************************************************
  77 *                                                                          *
  78 *      Section for driver hardware dependent interface - /dev/snd/hw?      *
  79 *                                                                          *
  80 ****************************************************************************/
  81
  82#define SNDRV_HWDEP_VERSION             SNDRV_PROTOCOL_VERSION(1, 0, 1)
  83
  84enum {
  85        SNDRV_HWDEP_IFACE_OPL2 = 0,
  86        SNDRV_HWDEP_IFACE_OPL3,
  87        SNDRV_HWDEP_IFACE_OPL4,
  88        SNDRV_HWDEP_IFACE_SB16CSP,      /* Creative Signal Processor */
  89        SNDRV_HWDEP_IFACE_EMU10K1,      /* FX8010 processor in EMU10K1 chip */
  90        SNDRV_HWDEP_IFACE_YSS225,       /* Yamaha FX processor */
  91        SNDRV_HWDEP_IFACE_ICS2115,      /* Wavetable synth */
  92        SNDRV_HWDEP_IFACE_SSCAPE,       /* Ensoniq SoundScape ISA card (MC68EC000) */
  93        SNDRV_HWDEP_IFACE_VX,           /* Digigram VX cards */
  94        SNDRV_HWDEP_IFACE_MIXART,       /* Digigram miXart cards */
  95        SNDRV_HWDEP_IFACE_USX2Y,        /* Tascam US122, US224 & US428 usb */
  96        SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */  
  97        SNDRV_HWDEP_IFACE_BLUETOOTH,    /* Bluetooth audio */
  98        SNDRV_HWDEP_IFACE_USX2Y_PCM,    /* Tascam US122, US224 & US428 rawusb pcm */
  99        SNDRV_HWDEP_IFACE_PCXHR,        /* Digigram PCXHR */
 100        SNDRV_HWDEP_IFACE_SB_RC,        /* SB Extigy/Audigy2NX remote control */
 101        SNDRV_HWDEP_IFACE_HDA,          /* HD-audio */
 102        SNDRV_HWDEP_IFACE_USB_STREAM,   /* direct access to usb stream */
 103        SNDRV_HWDEP_IFACE_FW_DICE,      /* TC DICE FireWire device */
 104        SNDRV_HWDEP_IFACE_FW_FIREWORKS, /* Echo Audio Fireworks based device */
 105        SNDRV_HWDEP_IFACE_FW_BEBOB,     /* BridgeCo BeBoB based device */
 106        SNDRV_HWDEP_IFACE_FW_OXFW,      /* Oxford OXFW970/971 based device */
 107        SNDRV_HWDEP_IFACE_FW_DIGI00X,   /* Digidesign Digi 002/003 family */
 108        SNDRV_HWDEP_IFACE_FW_TASCAM,    /* TASCAM FireWire series */
 109
 110        /* Don't forget to change the following: */
 111        SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_FW_TASCAM
 112};
 113
 114struct snd_hwdep_info {
 115        unsigned int device;            /* WR: device number */
 116        int card;                       /* R: card number */
 117        unsigned char id[64];           /* ID (user selectable) */
 118        unsigned char name[80];         /* hwdep name */
 119        int iface;                      /* hwdep interface */
 120        unsigned char reserved[64];     /* reserved for future */
 121};
 122
 123/* generic DSP loader */
 124struct snd_hwdep_dsp_status {
 125        unsigned int version;           /* R: driver-specific version */
 126        unsigned char id[32];           /* R: driver-specific ID string */
 127        unsigned int num_dsps;          /* R: number of DSP images to transfer */
 128        unsigned int dsp_loaded;        /* R: bit flags indicating the loaded DSPs */
 129        unsigned int chip_ready;        /* R: 1 = initialization finished */
 130        unsigned char reserved[16];     /* reserved for future use */
 131};
 132
 133struct snd_hwdep_dsp_image {
 134        unsigned int index;             /* W: DSP index */
 135        unsigned char name[64];         /* W: ID (e.g. file name) */
 136        unsigned char __user *image;    /* W: binary image */
 137        size_t length;                  /* W: size of image in bytes */
 138        unsigned long driver_data;      /* W: driver-specific data */
 139};
 140
 141#define SNDRV_HWDEP_IOCTL_PVERSION      _IOR ('H', 0x00, int)
 142#define SNDRV_HWDEP_IOCTL_INFO          _IOR ('H', 0x01, struct snd_hwdep_info)
 143#define SNDRV_HWDEP_IOCTL_DSP_STATUS    _IOR('H', 0x02, struct snd_hwdep_dsp_status)
 144#define SNDRV_HWDEP_IOCTL_DSP_LOAD      _IOW('H', 0x03, struct snd_hwdep_dsp_image)
 145
 146/*****************************************************************************
 147 *                                                                           *
 148 *             Digital Audio (PCM) interface - /dev/snd/pcm??                *
 149 *                                                                           *
 150 *****************************************************************************/
 151
 152#define SNDRV_PCM_VERSION               SNDRV_PROTOCOL_VERSION(2, 0, 13)
 153
 154typedef unsigned long snd_pcm_uframes_t;
 155typedef signed long snd_pcm_sframes_t;
 156
 157enum {
 158        SNDRV_PCM_CLASS_GENERIC = 0,    /* standard mono or stereo device */
 159        SNDRV_PCM_CLASS_MULTI,          /* multichannel device */
 160        SNDRV_PCM_CLASS_MODEM,          /* software modem class */
 161        SNDRV_PCM_CLASS_DIGITIZER,      /* digitizer class */
 162        /* Don't forget to change the following: */
 163        SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER,
 164};
 165
 166enum {
 167        SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, /* mono or stereo subdevices are mixed together */
 168        SNDRV_PCM_SUBCLASS_MULTI_MIX,   /* multichannel subdevices are mixed together */
 169        /* Don't forget to change the following: */
 170        SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX,
 171};
 172
 173enum {
 174        SNDRV_PCM_STREAM_PLAYBACK = 0,
 175        SNDRV_PCM_STREAM_CAPTURE,
 176        SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE,
 177};
 178
 179typedef int __bitwise snd_pcm_access_t;
 180#define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED       ((__force snd_pcm_access_t) 0) /* interleaved mmap */
 181#define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED    ((__force snd_pcm_access_t) 1) /* noninterleaved mmap */
 182#define SNDRV_PCM_ACCESS_MMAP_COMPLEX           ((__force snd_pcm_access_t) 2) /* complex mmap */
 183#define SNDRV_PCM_ACCESS_RW_INTERLEAVED         ((__force snd_pcm_access_t) 3) /* readi/writei */
 184#define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED      ((__force snd_pcm_access_t) 4) /* readn/writen */
 185#define SNDRV_PCM_ACCESS_LAST           SNDRV_PCM_ACCESS_RW_NONINTERLEAVED
 186
 187typedef int __bitwise snd_pcm_format_t;
 188#define SNDRV_PCM_FORMAT_S8     ((__force snd_pcm_format_t) 0)
 189#define SNDRV_PCM_FORMAT_U8     ((__force snd_pcm_format_t) 1)
 190#define SNDRV_PCM_FORMAT_S16_LE ((__force snd_pcm_format_t) 2)
 191#define SNDRV_PCM_FORMAT_S16_BE ((__force snd_pcm_format_t) 3)
 192#define SNDRV_PCM_FORMAT_U16_LE ((__force snd_pcm_format_t) 4)
 193#define SNDRV_PCM_FORMAT_U16_BE ((__force snd_pcm_format_t) 5)
 194#define SNDRV_PCM_FORMAT_S24_LE ((__force snd_pcm_format_t) 6) /* low three bytes */
 195#define SNDRV_PCM_FORMAT_S24_BE ((__force snd_pcm_format_t) 7) /* low three bytes */
 196#define SNDRV_PCM_FORMAT_U24_LE ((__force snd_pcm_format_t) 8) /* low three bytes */
 197#define SNDRV_PCM_FORMAT_U24_BE ((__force snd_pcm_format_t) 9) /* low three bytes */
 198#define SNDRV_PCM_FORMAT_S32_LE ((__force snd_pcm_format_t) 10)
 199#define SNDRV_PCM_FORMAT_S32_BE ((__force snd_pcm_format_t) 11)
 200#define SNDRV_PCM_FORMAT_U32_LE ((__force snd_pcm_format_t) 12)
 201#define SNDRV_PCM_FORMAT_U32_BE ((__force snd_pcm_format_t) 13)
 202#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 */
 203#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 */
 204#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 */
 205#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 */
 206#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((__force snd_pcm_format_t) 18) /* IEC-958 subframe, Little Endian */
 207#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((__force snd_pcm_format_t) 19) /* IEC-958 subframe, Big Endian */
 208#define SNDRV_PCM_FORMAT_MU_LAW         ((__force snd_pcm_format_t) 20)
 209#define SNDRV_PCM_FORMAT_A_LAW          ((__force snd_pcm_format_t) 21)
 210#define SNDRV_PCM_FORMAT_IMA_ADPCM      ((__force snd_pcm_format_t) 22)
 211#define SNDRV_PCM_FORMAT_MPEG           ((__force snd_pcm_format_t) 23)
 212#define SNDRV_PCM_FORMAT_GSM            ((__force snd_pcm_format_t) 24)
 213#define SNDRV_PCM_FORMAT_SPECIAL        ((__force snd_pcm_format_t) 31)
 214#define SNDRV_PCM_FORMAT_S24_3LE        ((__force snd_pcm_format_t) 32) /* in three bytes */
 215#define SNDRV_PCM_FORMAT_S24_3BE        ((__force snd_pcm_format_t) 33) /* in three bytes */
 216#define SNDRV_PCM_FORMAT_U24_3LE        ((__force snd_pcm_format_t) 34) /* in three bytes */
 217#define SNDRV_PCM_FORMAT_U24_3BE        ((__force snd_pcm_format_t) 35) /* in three bytes */
 218#define SNDRV_PCM_FORMAT_S20_3LE        ((__force snd_pcm_format_t) 36) /* in three bytes */
 219#define SNDRV_PCM_FORMAT_S20_3BE        ((__force snd_pcm_format_t) 37) /* in three bytes */
 220#define SNDRV_PCM_FORMAT_U20_3LE        ((__force snd_pcm_format_t) 38) /* in three bytes */
 221#define SNDRV_PCM_FORMAT_U20_3BE        ((__force snd_pcm_format_t) 39) /* in three bytes */
 222#define SNDRV_PCM_FORMAT_S18_3LE        ((__force snd_pcm_format_t) 40) /* in three bytes */
 223#define SNDRV_PCM_FORMAT_S18_3BE        ((__force snd_pcm_format_t) 41) /* in three bytes */
 224#define SNDRV_PCM_FORMAT_U18_3LE        ((__force snd_pcm_format_t) 42) /* in three bytes */
 225#define SNDRV_PCM_FORMAT_U18_3BE        ((__force snd_pcm_format_t) 43) /* in three bytes */
 226#define SNDRV_PCM_FORMAT_G723_24        ((__force snd_pcm_format_t) 44) /* 8 samples in 3 bytes */
 227#define SNDRV_PCM_FORMAT_G723_24_1B     ((__force snd_pcm_format_t) 45) /* 1 sample in 1 byte */
 228#define SNDRV_PCM_FORMAT_G723_40        ((__force snd_pcm_format_t) 46) /* 8 Samples in 5 bytes */
 229#define SNDRV_PCM_FORMAT_G723_40_1B     ((__force snd_pcm_format_t) 47) /* 1 sample in 1 byte */
 230#define SNDRV_PCM_FORMAT_DSD_U8         ((__force snd_pcm_format_t) 48) /* DSD, 1-byte samples DSD (x8) */
 231#define SNDRV_PCM_FORMAT_DSD_U16_LE     ((__force snd_pcm_format_t) 49) /* DSD, 2-byte samples DSD (x16), little endian */
 232#define SNDRV_PCM_FORMAT_DSD_U32_LE     ((__force snd_pcm_format_t) 50) /* DSD, 4-byte samples DSD (x32), little endian */
 233#define SNDRV_PCM_FORMAT_DSD_U16_BE     ((__force snd_pcm_format_t) 51) /* DSD, 2-byte samples DSD (x16), big endian */
 234#define SNDRV_PCM_FORMAT_DSD_U32_BE     ((__force snd_pcm_format_t) 52) /* DSD, 4-byte samples DSD (x32), big endian */
 235#define SNDRV_PCM_FORMAT_LAST           SNDRV_PCM_FORMAT_DSD_U32_BE
 236
 237#ifdef SNDRV_LITTLE_ENDIAN
 238#define SNDRV_PCM_FORMAT_S16            SNDRV_PCM_FORMAT_S16_LE
 239#define SNDRV_PCM_FORMAT_U16            SNDRV_PCM_FORMAT_U16_LE
 240#define SNDRV_PCM_FORMAT_S24            SNDRV_PCM_FORMAT_S24_LE
 241#define SNDRV_PCM_FORMAT_U24            SNDRV_PCM_FORMAT_U24_LE
 242#define SNDRV_PCM_FORMAT_S32            SNDRV_PCM_FORMAT_S32_LE
 243#define SNDRV_PCM_FORMAT_U32            SNDRV_PCM_FORMAT_U32_LE
 244#define SNDRV_PCM_FORMAT_FLOAT          SNDRV_PCM_FORMAT_FLOAT_LE
 245#define SNDRV_PCM_FORMAT_FLOAT64        SNDRV_PCM_FORMAT_FLOAT64_LE
 246#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE
 247#endif
 248#ifdef SNDRV_BIG_ENDIAN
 249#define SNDRV_PCM_FORMAT_S16            SNDRV_PCM_FORMAT_S16_BE
 250#define SNDRV_PCM_FORMAT_U16            SNDRV_PCM_FORMAT_U16_BE
 251#define SNDRV_PCM_FORMAT_S24            SNDRV_PCM_FORMAT_S24_BE
 252#define SNDRV_PCM_FORMAT_U24            SNDRV_PCM_FORMAT_U24_BE
 253#define SNDRV_PCM_FORMAT_S32            SNDRV_PCM_FORMAT_S32_BE
 254#define SNDRV_PCM_FORMAT_U32            SNDRV_PCM_FORMAT_U32_BE
 255#define SNDRV_PCM_FORMAT_FLOAT          SNDRV_PCM_FORMAT_FLOAT_BE
 256#define SNDRV_PCM_FORMAT_FLOAT64        SNDRV_PCM_FORMAT_FLOAT64_BE
 257#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE
 258#endif
 259
 260typedef int __bitwise snd_pcm_subformat_t;
 261#define SNDRV_PCM_SUBFORMAT_STD         ((__force snd_pcm_subformat_t) 0)
 262#define SNDRV_PCM_SUBFORMAT_LAST        SNDRV_PCM_SUBFORMAT_STD
 263
 264#define SNDRV_PCM_INFO_MMAP             0x00000001      /* hardware supports mmap */
 265#define SNDRV_PCM_INFO_MMAP_VALID       0x00000002      /* period data are valid during transfer */
 266#define SNDRV_PCM_INFO_DOUBLE           0x00000004      /* Double buffering needed for PCM start/stop */
 267#define SNDRV_PCM_INFO_BATCH            0x00000010      /* double buffering */
 268#define SNDRV_PCM_INFO_INTERLEAVED      0x00000100      /* channels are interleaved */
 269#define SNDRV_PCM_INFO_NONINTERLEAVED   0x00000200      /* channels are not interleaved */
 270#define SNDRV_PCM_INFO_COMPLEX          0x00000400      /* complex frame organization (mmap only) */
 271#define SNDRV_PCM_INFO_BLOCK_TRANSFER   0x00010000      /* hardware transfer block of samples */
 272#define SNDRV_PCM_INFO_OVERRANGE        0x00020000      /* hardware supports ADC (capture) overrange detection */
 273#define SNDRV_PCM_INFO_RESUME           0x00040000      /* hardware supports stream resume after suspend */
 274#define SNDRV_PCM_INFO_PAUSE            0x00080000      /* pause ioctl is supported */
 275#define SNDRV_PCM_INFO_HALF_DUPLEX      0x00100000      /* only half duplex */
 276#define SNDRV_PCM_INFO_JOINT_DUPLEX     0x00200000      /* playback and capture stream are somewhat correlated */
 277#define SNDRV_PCM_INFO_SYNC_START       0x00400000      /* pcm support some kind of sync go */
 278#define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP 0x00800000      /* period wakeup can be disabled */
 279#define SNDRV_PCM_INFO_HAS_WALL_CLOCK   0x01000000      /* (Deprecated)has audio wall clock for audio/system time sync */
 280#define SNDRV_PCM_INFO_HAS_LINK_ATIME              0x01000000  /* report hardware link audio time, reset on startup */
 281#define SNDRV_PCM_INFO_HAS_LINK_ABSOLUTE_ATIME     0x02000000  /* report absolute hardware link audio time, not reset on startup */
 282#define SNDRV_PCM_INFO_HAS_LINK_ESTIMATED_ATIME    0x04000000  /* report estimated link audio time */
 283#define SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME 0x08000000  /* report synchronized audio/system time */
 284
 285#define SNDRV_PCM_INFO_DRAIN_TRIGGER    0x40000000              /* internal kernel flag - trigger in drain */
 286#define SNDRV_PCM_INFO_FIFO_IN_FRAMES   0x80000000      /* internal kernel flag - FIFO size is in frames */
 287
 288
 289
 290typedef int __bitwise snd_pcm_state_t;
 291#define SNDRV_PCM_STATE_OPEN            ((__force snd_pcm_state_t) 0) /* stream is open */
 292#define SNDRV_PCM_STATE_SETUP           ((__force snd_pcm_state_t) 1) /* stream has a setup */
 293#define SNDRV_PCM_STATE_PREPARED        ((__force snd_pcm_state_t) 2) /* stream is ready to start */
 294#define SNDRV_PCM_STATE_RUNNING         ((__force snd_pcm_state_t) 3) /* stream is running */
 295#define SNDRV_PCM_STATE_XRUN            ((__force snd_pcm_state_t) 4) /* stream reached an xrun */
 296#define SNDRV_PCM_STATE_DRAINING        ((__force snd_pcm_state_t) 5) /* stream is draining */
 297#define SNDRV_PCM_STATE_PAUSED          ((__force snd_pcm_state_t) 6) /* stream is paused */
 298#define SNDRV_PCM_STATE_SUSPENDED       ((__force snd_pcm_state_t) 7) /* hardware is suspended */
 299#define SNDRV_PCM_STATE_DISCONNECTED    ((__force snd_pcm_state_t) 8) /* hardware is disconnected */
 300#define SNDRV_PCM_STATE_LAST            SNDRV_PCM_STATE_DISCONNECTED
 301
 302enum {
 303        SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000,
 304        SNDRV_PCM_MMAP_OFFSET_STATUS = 0x80000000,
 305        SNDRV_PCM_MMAP_OFFSET_CONTROL = 0x81000000,
 306};
 307
 308union snd_pcm_sync_id {
 309        unsigned char id[16];
 310        unsigned short id16[8];
 311        unsigned int id32[4];
 312};
 313
 314struct snd_pcm_info {
 315        unsigned int device;            /* RO/WR (control): device number */
 316        unsigned int subdevice;         /* RO/WR (control): subdevice number */
 317        int stream;                     /* RO/WR (control): stream direction */
 318        int card;                       /* R: card number */
 319        unsigned char id[64];           /* ID (user selectable) */
 320        unsigned char name[80];         /* name of this device */
 321        unsigned char subname[32];      /* subdevice name */
 322        int dev_class;                  /* SNDRV_PCM_CLASS_* */
 323        int dev_subclass;               /* SNDRV_PCM_SUBCLASS_* */
 324        unsigned int subdevices_count;
 325        unsigned int subdevices_avail;
 326        union snd_pcm_sync_id sync;     /* hardware synchronization ID */
 327        unsigned char reserved[64];     /* reserved for future... */
 328};
 329
 330typedef int snd_pcm_hw_param_t;
 331#define SNDRV_PCM_HW_PARAM_ACCESS       0       /* Access type */
 332#define SNDRV_PCM_HW_PARAM_FORMAT       1       /* Format */
 333#define SNDRV_PCM_HW_PARAM_SUBFORMAT    2       /* Subformat */
 334#define SNDRV_PCM_HW_PARAM_FIRST_MASK   SNDRV_PCM_HW_PARAM_ACCESS
 335#define SNDRV_PCM_HW_PARAM_LAST_MASK    SNDRV_PCM_HW_PARAM_SUBFORMAT
 336
 337#define SNDRV_PCM_HW_PARAM_SAMPLE_BITS  8       /* Bits per sample */
 338#define SNDRV_PCM_HW_PARAM_FRAME_BITS   9       /* Bits per frame */
 339#define SNDRV_PCM_HW_PARAM_CHANNELS     10      /* Channels */
 340#define SNDRV_PCM_HW_PARAM_RATE         11      /* Approx rate */
 341#define SNDRV_PCM_HW_PARAM_PERIOD_TIME  12      /* Approx distance between
 342                                                 * interrupts in us
 343                                                 */
 344#define SNDRV_PCM_HW_PARAM_PERIOD_SIZE  13      /* Approx frames between
 345                                                 * interrupts
 346                                                 */
 347#define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14      /* Approx bytes between
 348                                                 * interrupts
 349                                                 */
 350#define SNDRV_PCM_HW_PARAM_PERIODS      15      /* Approx interrupts per
 351                                                 * buffer
 352                                                 */
 353#define SNDRV_PCM_HW_PARAM_BUFFER_TIME  16      /* Approx duration of buffer
 354                                                 * in us
 355                                                 */
 356#define SNDRV_PCM_HW_PARAM_BUFFER_SIZE  17      /* Size of buffer in frames */
 357#define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18      /* Size of buffer in bytes */
 358#define SNDRV_PCM_HW_PARAM_TICK_TIME    19      /* Approx tick duration in us */
 359#define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL       SNDRV_PCM_HW_PARAM_SAMPLE_BITS
 360#define SNDRV_PCM_HW_PARAM_LAST_INTERVAL        SNDRV_PCM_HW_PARAM_TICK_TIME
 361
 362#define SNDRV_PCM_HW_PARAMS_NORESAMPLE  (1<<0)  /* avoid rate resampling */
 363#define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER       (1<<1)  /* export buffer */
 364#define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP    (1<<2)  /* disable period wakeups */
 365
 366struct snd_interval {
 367        unsigned int min, max;
 368        unsigned int openmin:1,
 369                     openmax:1,
 370                     integer:1,
 371                     empty:1;
 372};
 373
 374#define SNDRV_MASK_MAX  256
 375
 376struct snd_mask {
 377        __u32 bits[(SNDRV_MASK_MAX+31)/32];
 378};
 379
 380struct snd_pcm_hw_params {
 381        unsigned int flags;
 382        struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - 
 383                               SNDRV_PCM_HW_PARAM_FIRST_MASK + 1];
 384        struct snd_mask mres[5];        /* reserved masks */
 385        struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL -
 386                                        SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1];
 387        struct snd_interval ires[9];    /* reserved intervals */
 388        unsigned int rmask;             /* W: requested masks */
 389        unsigned int cmask;             /* R: changed masks */
 390        unsigned int info;              /* R: Info flags for returned setup */
 391        unsigned int msbits;            /* R: used most significant bits */
 392        unsigned int rate_num;          /* R: rate numerator */
 393        unsigned int rate_den;          /* R: rate denominator */
 394        snd_pcm_uframes_t fifo_size;    /* R: chip FIFO size in frames */
 395        unsigned char reserved[64];     /* reserved for future */
 396};
 397
 398enum {
 399        SNDRV_PCM_TSTAMP_NONE = 0,
 400        SNDRV_PCM_TSTAMP_ENABLE,
 401        SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE,
 402};
 403
 404struct snd_pcm_sw_params {
 405        int tstamp_mode;                        /* timestamp mode */
 406        unsigned int period_step;
 407        unsigned int sleep_min;                 /* min ticks to sleep */
 408        snd_pcm_uframes_t avail_min;            /* min avail frames for wakeup */
 409        snd_pcm_uframes_t xfer_align;           /* obsolete: xfer size need to be a multiple */
 410        snd_pcm_uframes_t start_threshold;      /* min hw_avail frames for automatic start */
 411        snd_pcm_uframes_t stop_threshold;       /* min avail frames for automatic stop */
 412        snd_pcm_uframes_t silence_threshold;    /* min distance from noise for silence filling */
 413        snd_pcm_uframes_t silence_size;         /* silence block size */
 414        snd_pcm_uframes_t boundary;             /* pointers wrap point */
 415        unsigned int proto;                     /* protocol version */
 416        unsigned int tstamp_type;               /* timestamp type (req. proto >= 2.0.12) */
 417        unsigned char reserved[56];             /* reserved for future */
 418};
 419
 420struct snd_pcm_channel_info {
 421        unsigned int channel;
 422        __kernel_off_t offset;          /* mmap offset */
 423        unsigned int first;             /* offset to first sample in bits */
 424        unsigned int step;              /* samples distance in bits */
 425};
 426
 427enum {
 428        /*
 429         *  first definition for backwards compatibility only,
 430         *  maps to wallclock/link time for HDAudio playback and DEFAULT/DMA time for everything else
 431         */
 432        SNDRV_PCM_AUDIO_TSTAMP_TYPE_COMPAT = 0,
 433
 434        /* timestamp definitions */
 435        SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT = 1,           /* DMA time, reported as per hw_ptr */
 436        SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK = 2,              /* link time reported by sample or wallclock counter, reset on startup */
 437        SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE = 3,     /* link time reported by sample or wallclock counter, not reset on startup */
 438        SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED = 4,    /* link time estimated indirectly */
 439        SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED = 5, /* link time synchronized with system time */
 440        SNDRV_PCM_AUDIO_TSTAMP_TYPE_LAST = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED
 441};
 442
 443struct snd_pcm_status {
 444        snd_pcm_state_t state;          /* stream state */
 445        struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */
 446        struct timespec tstamp;         /* reference timestamp */
 447        snd_pcm_uframes_t appl_ptr;     /* appl ptr */
 448        snd_pcm_uframes_t hw_ptr;       /* hw ptr */
 449        snd_pcm_sframes_t delay;        /* current delay in frames */
 450        snd_pcm_uframes_t avail;        /* number of frames available */
 451        snd_pcm_uframes_t avail_max;    /* max frames available on hw since last status */
 452        snd_pcm_uframes_t overrange;    /* count of ADC (capture) overrange detections from last status */
 453        snd_pcm_state_t suspended_state; /* suspended stream state */
 454        __u32 audio_tstamp_data;         /* needed for 64-bit alignment, used for configs/report to/from userspace */
 455        struct timespec audio_tstamp;   /* sample counter, wall clock, PHC or on-demand sync'ed */
 456        struct timespec driver_tstamp;  /* useful in case reference system tstamp is reported with delay */
 457        __u32 audio_tstamp_accuracy;    /* in ns units, only valid if indicated in audio_tstamp_data */
 458        unsigned char reserved[52-2*sizeof(struct timespec)]; /* must be filled with zero */
 459};
 460
 461struct snd_pcm_mmap_status {
 462        snd_pcm_state_t state;          /* RO: state - SNDRV_PCM_STATE_XXXX */
 463        int pad1;                       /* Needed for 64 bit alignment */
 464        snd_pcm_uframes_t hw_ptr;       /* RO: hw ptr (0...boundary-1) */
 465        struct timespec tstamp;         /* Timestamp */
 466        snd_pcm_state_t suspended_state; /* RO: suspended stream state */
 467        struct timespec audio_tstamp;   /* from sample counter or wall clock */
 468};
 469
 470struct snd_pcm_mmap_control {
 471        snd_pcm_uframes_t appl_ptr;     /* RW: appl ptr (0...boundary-1) */
 472        snd_pcm_uframes_t avail_min;    /* RW: min available frames for wakeup */
 473};
 474
 475#define SNDRV_PCM_SYNC_PTR_HWSYNC       (1<<0)  /* execute hwsync */
 476#define SNDRV_PCM_SYNC_PTR_APPL         (1<<1)  /* get appl_ptr from driver (r/w op) */
 477#define SNDRV_PCM_SYNC_PTR_AVAIL_MIN    (1<<2)  /* get avail_min from driver */
 478
 479struct snd_pcm_sync_ptr {
 480        unsigned int flags;
 481        union {
 482                struct snd_pcm_mmap_status status;
 483                unsigned char reserved[64];
 484        } s;
 485        union {
 486                struct snd_pcm_mmap_control control;
 487                unsigned char reserved[64];
 488        } c;
 489};
 490
 491struct snd_xferi {
 492        snd_pcm_sframes_t result;
 493        void __user *buf;
 494        snd_pcm_uframes_t frames;
 495};
 496
 497struct snd_xfern {
 498        snd_pcm_sframes_t result;
 499        void __user * __user *bufs;
 500        snd_pcm_uframes_t frames;
 501};
 502
 503enum {
 504        SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0, /* gettimeofday equivalent */
 505        SNDRV_PCM_TSTAMP_TYPE_MONOTONIC,        /* posix_clock_monotonic equivalent */
 506        SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW,    /* monotonic_raw (no NTP) */
 507        SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW,
 508};
 509
 510/* channel positions */
 511enum {
 512        SNDRV_CHMAP_UNKNOWN = 0,
 513        SNDRV_CHMAP_NA,         /* N/A, silent */
 514        SNDRV_CHMAP_MONO,       /* mono stream */
 515        /* this follows the alsa-lib mixer channel value + 3 */
 516        SNDRV_CHMAP_FL,         /* front left */
 517        SNDRV_CHMAP_FR,         /* front right */
 518        SNDRV_CHMAP_RL,         /* rear left */
 519        SNDRV_CHMAP_RR,         /* rear right */
 520        SNDRV_CHMAP_FC,         /* front center */
 521        SNDRV_CHMAP_LFE,        /* LFE */
 522        SNDRV_CHMAP_SL,         /* side left */
 523        SNDRV_CHMAP_SR,         /* side right */
 524        SNDRV_CHMAP_RC,         /* rear center */
 525        /* new definitions */
 526        SNDRV_CHMAP_FLC,        /* front left center */
 527        SNDRV_CHMAP_FRC,        /* front right center */
 528        SNDRV_CHMAP_RLC,        /* rear left center */
 529        SNDRV_CHMAP_RRC,        /* rear right center */
 530        SNDRV_CHMAP_FLW,        /* front left wide */
 531        SNDRV_CHMAP_FRW,        /* front right wide */
 532        SNDRV_CHMAP_FLH,        /* front left high */
 533        SNDRV_CHMAP_FCH,        /* front center high */
 534        SNDRV_CHMAP_FRH,        /* front right high */
 535        SNDRV_CHMAP_TC,         /* top center */
 536        SNDRV_CHMAP_TFL,        /* top front left */
 537        SNDRV_CHMAP_TFR,        /* top front right */
 538        SNDRV_CHMAP_TFC,        /* top front center */
 539        SNDRV_CHMAP_TRL,        /* top rear left */
 540        SNDRV_CHMAP_TRR,        /* top rear right */
 541        SNDRV_CHMAP_TRC,        /* top rear center */
 542        /* new definitions for UAC2 */
 543        SNDRV_CHMAP_TFLC,       /* top front left center */
 544        SNDRV_CHMAP_TFRC,       /* top front right center */
 545        SNDRV_CHMAP_TSL,        /* top side left */
 546        SNDRV_CHMAP_TSR,        /* top side right */
 547        SNDRV_CHMAP_LLFE,       /* left LFE */
 548        SNDRV_CHMAP_RLFE,       /* right LFE */
 549        SNDRV_CHMAP_BC,         /* bottom center */
 550        SNDRV_CHMAP_BLC,        /* bottom left center */
 551        SNDRV_CHMAP_BRC,        /* bottom right center */
 552        SNDRV_CHMAP_LAST = SNDRV_CHMAP_BRC,
 553};
 554
 555#define SNDRV_CHMAP_POSITION_MASK       0xffff
 556#define SNDRV_CHMAP_PHASE_INVERSE       (0x01 << 16)
 557#define SNDRV_CHMAP_DRIVER_SPEC         (0x02 << 16)
 558
 559#define SNDRV_PCM_IOCTL_PVERSION        _IOR('A', 0x00, int)
 560#define SNDRV_PCM_IOCTL_INFO            _IOR('A', 0x01, struct snd_pcm_info)
 561#define SNDRV_PCM_IOCTL_TSTAMP          _IOW('A', 0x02, int)
 562#define SNDRV_PCM_IOCTL_TTSTAMP         _IOW('A', 0x03, int)
 563#define SNDRV_PCM_IOCTL_HW_REFINE       _IOWR('A', 0x10, struct snd_pcm_hw_params)
 564#define SNDRV_PCM_IOCTL_HW_PARAMS       _IOWR('A', 0x11, struct snd_pcm_hw_params)
 565#define SNDRV_PCM_IOCTL_HW_FREE         _IO('A', 0x12)
 566#define SNDRV_PCM_IOCTL_SW_PARAMS       _IOWR('A', 0x13, struct snd_pcm_sw_params)
 567#define SNDRV_PCM_IOCTL_STATUS          _IOR('A', 0x20, struct snd_pcm_status)
 568#define SNDRV_PCM_IOCTL_DELAY           _IOR('A', 0x21, snd_pcm_sframes_t)
 569#define SNDRV_PCM_IOCTL_HWSYNC          _IO('A', 0x22)
 570#define SNDRV_PCM_IOCTL_SYNC_PTR        _IOWR('A', 0x23, struct snd_pcm_sync_ptr)
 571#define SNDRV_PCM_IOCTL_STATUS_EXT      _IOWR('A', 0x24, struct snd_pcm_status)
 572#define SNDRV_PCM_IOCTL_CHANNEL_INFO    _IOR('A', 0x32, struct snd_pcm_channel_info)
 573#define SNDRV_PCM_IOCTL_PREPARE         _IO('A', 0x40)
 574#define SNDRV_PCM_IOCTL_RESET           _IO('A', 0x41)
 575#define SNDRV_PCM_IOCTL_START           _IO('A', 0x42)
 576#define SNDRV_PCM_IOCTL_DROP            _IO('A', 0x43)
 577#define SNDRV_PCM_IOCTL_DRAIN           _IO('A', 0x44)
 578#define SNDRV_PCM_IOCTL_PAUSE           _IOW('A', 0x45, int)
 579#define SNDRV_PCM_IOCTL_REWIND          _IOW('A', 0x46, snd_pcm_uframes_t)
 580#define SNDRV_PCM_IOCTL_RESUME          _IO('A', 0x47)
 581#define SNDRV_PCM_IOCTL_XRUN            _IO('A', 0x48)
 582#define SNDRV_PCM_IOCTL_FORWARD         _IOW('A', 0x49, snd_pcm_uframes_t)
 583#define SNDRV_PCM_IOCTL_WRITEI_FRAMES   _IOW('A', 0x50, struct snd_xferi)
 584#define SNDRV_PCM_IOCTL_READI_FRAMES    _IOR('A', 0x51, struct snd_xferi)
 585#define SNDRV_PCM_IOCTL_WRITEN_FRAMES   _IOW('A', 0x52, struct snd_xfern)
 586#define SNDRV_PCM_IOCTL_READN_FRAMES    _IOR('A', 0x53, struct snd_xfern)
 587#define SNDRV_PCM_IOCTL_LINK            _IOW('A', 0x60, int)
 588#define SNDRV_PCM_IOCTL_UNLINK          _IO('A', 0x61)
 589
 590/*****************************************************************************
 591 *                                                                           *
 592 *                            MIDI v1.0 interface                            *
 593 *                                                                           *
 594 *****************************************************************************/
 595
 596/*
 597 *  Raw MIDI section - /dev/snd/midi??
 598 */
 599
 600#define SNDRV_RAWMIDI_VERSION           SNDRV_PROTOCOL_VERSION(2, 0, 0)
 601
 602enum {
 603        SNDRV_RAWMIDI_STREAM_OUTPUT = 0,
 604        SNDRV_RAWMIDI_STREAM_INPUT,
 605        SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT,
 606};
 607
 608#define SNDRV_RAWMIDI_INFO_OUTPUT               0x00000001
 609#define SNDRV_RAWMIDI_INFO_INPUT                0x00000002
 610#define SNDRV_RAWMIDI_INFO_DUPLEX               0x00000004
 611
 612struct snd_rawmidi_info {
 613        unsigned int device;            /* RO/WR (control): device number */
 614        unsigned int subdevice;         /* RO/WR (control): subdevice number */
 615        int stream;                     /* WR: stream */
 616        int card;                       /* R: card number */
 617        unsigned int flags;             /* SNDRV_RAWMIDI_INFO_XXXX */
 618        unsigned char id[64];           /* ID (user selectable) */
 619        unsigned char name[80];         /* name of device */
 620        unsigned char subname[32];      /* name of active or selected subdevice */
 621        unsigned int subdevices_count;
 622        unsigned int subdevices_avail;
 623        unsigned char reserved[64];     /* reserved for future use */
 624};
 625
 626struct snd_rawmidi_params {
 627        int stream;
 628        size_t buffer_size;             /* queue size in bytes */
 629        size_t avail_min;               /* minimum avail bytes for wakeup */
 630        unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */
 631        unsigned char reserved[16];     /* reserved for future use */
 632};
 633
 634struct snd_rawmidi_status {
 635        int stream;
 636        struct timespec tstamp;         /* Timestamp */
 637        size_t avail;                   /* available bytes */
 638        size_t xruns;                   /* count of overruns since last status (in bytes) */
 639        unsigned char reserved[16];     /* reserved for future use */
 640};
 641
 642#define SNDRV_RAWMIDI_IOCTL_PVERSION    _IOR('W', 0x00, int)
 643#define SNDRV_RAWMIDI_IOCTL_INFO        _IOR('W', 0x01, struct snd_rawmidi_info)
 644#define SNDRV_RAWMIDI_IOCTL_PARAMS      _IOWR('W', 0x10, struct snd_rawmidi_params)
 645#define SNDRV_RAWMIDI_IOCTL_STATUS      _IOWR('W', 0x20, struct snd_rawmidi_status)
 646#define SNDRV_RAWMIDI_IOCTL_DROP        _IOW('W', 0x30, int)
 647#define SNDRV_RAWMIDI_IOCTL_DRAIN       _IOW('W', 0x31, int)
 648
 649/*
 650 *  Timer section - /dev/snd/timer
 651 */
 652
 653#define SNDRV_TIMER_VERSION             SNDRV_PROTOCOL_VERSION(2, 0, 6)
 654
 655enum {
 656        SNDRV_TIMER_CLASS_NONE = -1,
 657        SNDRV_TIMER_CLASS_SLAVE = 0,
 658        SNDRV_TIMER_CLASS_GLOBAL,
 659        SNDRV_TIMER_CLASS_CARD,
 660        SNDRV_TIMER_CLASS_PCM,
 661        SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM,
 662};
 663
 664/* slave timer classes */
 665enum {
 666        SNDRV_TIMER_SCLASS_NONE = 0,
 667        SNDRV_TIMER_SCLASS_APPLICATION,
 668        SNDRV_TIMER_SCLASS_SEQUENCER,           /* alias */
 669        SNDRV_TIMER_SCLASS_OSS_SEQUENCER,       /* alias */
 670        SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER,
 671};
 672
 673/* global timers (device member) */
 674#define SNDRV_TIMER_GLOBAL_SYSTEM       0
 675#define SNDRV_TIMER_GLOBAL_RTC          1
 676#define SNDRV_TIMER_GLOBAL_HPET         2
 677#define SNDRV_TIMER_GLOBAL_HRTIMER      3
 678
 679/* info flags */
 680#define SNDRV_TIMER_FLG_SLAVE           (1<<0)  /* cannot be controlled */
 681
 682struct snd_timer_id {
 683        int dev_class;
 684        int dev_sclass;
 685        int card;
 686        int device;
 687        int subdevice;
 688};
 689
 690struct snd_timer_ginfo {
 691        struct snd_timer_id tid;        /* requested timer ID */
 692        unsigned int flags;             /* timer flags - SNDRV_TIMER_FLG_* */
 693        int card;                       /* card number */
 694        unsigned char id[64];           /* timer identification */
 695        unsigned char name[80];         /* timer name */
 696        unsigned long reserved0;        /* reserved for future use */
 697        unsigned long resolution;       /* average period resolution in ns */
 698        unsigned long resolution_min;   /* minimal period resolution in ns */
 699        unsigned long resolution_max;   /* maximal period resolution in ns */
 700        unsigned int clients;           /* active timer clients */
 701        unsigned char reserved[32];
 702};
 703
 704struct snd_timer_gparams {
 705        struct snd_timer_id tid;        /* requested timer ID */
 706        unsigned long period_num;       /* requested precise period duration (in seconds) - numerator */
 707        unsigned long period_den;       /* requested precise period duration (in seconds) - denominator */
 708        unsigned char reserved[32];
 709};
 710
 711struct snd_timer_gstatus {
 712        struct snd_timer_id tid;        /* requested timer ID */
 713        unsigned long resolution;       /* current period resolution in ns */
 714        unsigned long resolution_num;   /* precise current period resolution (in seconds) - numerator */
 715        unsigned long resolution_den;   /* precise current period resolution (in seconds) - denominator */
 716        unsigned char reserved[32];
 717};
 718
 719struct snd_timer_select {
 720        struct snd_timer_id id; /* bind to timer ID */
 721        unsigned char reserved[32];     /* reserved */
 722};
 723
 724struct snd_timer_info {
 725        unsigned int flags;             /* timer flags - SNDRV_TIMER_FLG_* */
 726        int card;                       /* card number */
 727        unsigned char id[64];           /* timer identificator */
 728        unsigned char name[80];         /* timer name */
 729        unsigned long reserved0;        /* reserved for future use */
 730        unsigned long resolution;       /* average period resolution in ns */
 731        unsigned char reserved[64];     /* reserved */
 732};
 733
 734#define SNDRV_TIMER_PSFLG_AUTO          (1<<0)  /* auto start, otherwise one-shot */
 735#define SNDRV_TIMER_PSFLG_EXCLUSIVE     (1<<1)  /* exclusive use, precise start/stop/pause/continue */
 736#define SNDRV_TIMER_PSFLG_EARLY_EVENT   (1<<2)  /* write early event to the poll queue */
 737
 738struct snd_timer_params {
 739        unsigned int flags;             /* flags - SNDRV_MIXER_PSFLG_* */
 740        unsigned int ticks;             /* requested resolution in ticks */
 741        unsigned int queue_size;        /* total size of queue (32-1024) */
 742        unsigned int reserved0;         /* reserved, was: failure locations */
 743        unsigned int filter;            /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */
 744        unsigned char reserved[60];     /* reserved */
 745};
 746
 747struct snd_timer_status {
 748        struct timespec tstamp;         /* Timestamp - last update */
 749        unsigned int resolution;        /* current period resolution in ns */
 750        unsigned int lost;              /* counter of master tick lost */
 751        unsigned int overrun;           /* count of read queue overruns */
 752        unsigned int queue;             /* used queue size */
 753        unsigned char reserved[64];     /* reserved */
 754};
 755
 756#define SNDRV_TIMER_IOCTL_PVERSION      _IOR('T', 0x00, int)
 757#define SNDRV_TIMER_IOCTL_NEXT_DEVICE   _IOWR('T', 0x01, struct snd_timer_id)
 758#define SNDRV_TIMER_IOCTL_TREAD         _IOW('T', 0x02, int)
 759#define SNDRV_TIMER_IOCTL_GINFO         _IOWR('T', 0x03, struct snd_timer_ginfo)
 760#define SNDRV_TIMER_IOCTL_GPARAMS       _IOW('T', 0x04, struct snd_timer_gparams)
 761#define SNDRV_TIMER_IOCTL_GSTATUS       _IOWR('T', 0x05, struct snd_timer_gstatus)
 762#define SNDRV_TIMER_IOCTL_SELECT        _IOW('T', 0x10, struct snd_timer_select)
 763#define SNDRV_TIMER_IOCTL_INFO          _IOR('T', 0x11, struct snd_timer_info)
 764#define SNDRV_TIMER_IOCTL_PARAMS        _IOW('T', 0x12, struct snd_timer_params)
 765#define SNDRV_TIMER_IOCTL_STATUS        _IOR('T', 0x14, struct snd_timer_status)
 766/* The following four ioctls are changed since 1.0.9 due to confliction */
 767#define SNDRV_TIMER_IOCTL_START         _IO('T', 0xa0)
 768#define SNDRV_TIMER_IOCTL_STOP          _IO('T', 0xa1)
 769#define SNDRV_TIMER_IOCTL_CONTINUE      _IO('T', 0xa2)
 770#define SNDRV_TIMER_IOCTL_PAUSE         _IO('T', 0xa3)
 771
 772struct snd_timer_read {
 773        unsigned int resolution;
 774        unsigned int ticks;
 775};
 776
 777enum {
 778        SNDRV_TIMER_EVENT_RESOLUTION = 0,       /* val = resolution in ns */
 779        SNDRV_TIMER_EVENT_TICK,                 /* val = ticks */
 780        SNDRV_TIMER_EVENT_START,                /* val = resolution in ns */
 781        SNDRV_TIMER_EVENT_STOP,                 /* val = 0 */
 782        SNDRV_TIMER_EVENT_CONTINUE,             /* val = resolution in ns */
 783        SNDRV_TIMER_EVENT_PAUSE,                /* val = 0 */
 784        SNDRV_TIMER_EVENT_EARLY,                /* val = 0, early event */
 785        SNDRV_TIMER_EVENT_SUSPEND,              /* val = 0 */
 786        SNDRV_TIMER_EVENT_RESUME,               /* val = resolution in ns */
 787        /* master timer events for slave timer instances */
 788        SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10,
 789        SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10,
 790        SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10,
 791        SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10,
 792        SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10,
 793        SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10,
 794};
 795
 796struct snd_timer_tread {
 797        int event;
 798        struct timespec tstamp;
 799        unsigned int val;
 800};
 801
 802/****************************************************************************
 803 *                                                                          *
 804 *        Section for driver control interface - /dev/snd/control?          *
 805 *                                                                          *
 806 ****************************************************************************/
 807
 808#define SNDRV_CTL_VERSION               SNDRV_PROTOCOL_VERSION(2, 0, 7)
 809
 810struct snd_ctl_card_info {
 811        int card;                       /* card number */
 812        int pad;                        /* reserved for future (was type) */
 813        unsigned char id[16];           /* ID of card (user selectable) */
 814        unsigned char driver[16];       /* Driver name */
 815        unsigned char name[32];         /* Short name of soundcard */
 816        unsigned char longname[80];     /* name + info text about soundcard */
 817        unsigned char reserved_[16];    /* reserved for future (was ID of mixer) */
 818        unsigned char mixername[80];    /* visual mixer identification */
 819        unsigned char components[128];  /* card components / fine identification, delimited with one space (AC97 etc..) */
 820};
 821
 822typedef int __bitwise snd_ctl_elem_type_t;
 823#define SNDRV_CTL_ELEM_TYPE_NONE        ((__force snd_ctl_elem_type_t) 0) /* invalid */
 824#define SNDRV_CTL_ELEM_TYPE_BOOLEAN     ((__force snd_ctl_elem_type_t) 1) /* boolean type */
 825#define SNDRV_CTL_ELEM_TYPE_INTEGER     ((__force snd_ctl_elem_type_t) 2) /* integer type */
 826#define SNDRV_CTL_ELEM_TYPE_ENUMERATED  ((__force snd_ctl_elem_type_t) 3) /* enumerated type */
 827#define SNDRV_CTL_ELEM_TYPE_BYTES       ((__force snd_ctl_elem_type_t) 4) /* byte array */
 828#define SNDRV_CTL_ELEM_TYPE_IEC958      ((__force snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */
 829#define SNDRV_CTL_ELEM_TYPE_INTEGER64   ((__force snd_ctl_elem_type_t) 6) /* 64-bit integer type */
 830#define SNDRV_CTL_ELEM_TYPE_LAST        SNDRV_CTL_ELEM_TYPE_INTEGER64
 831
 832typedef int __bitwise snd_ctl_elem_iface_t;
 833#define SNDRV_CTL_ELEM_IFACE_CARD       ((__force snd_ctl_elem_iface_t) 0) /* global control */
 834#define SNDRV_CTL_ELEM_IFACE_HWDEP      ((__force snd_ctl_elem_iface_t) 1) /* hardware dependent device */
 835#define SNDRV_CTL_ELEM_IFACE_MIXER      ((__force snd_ctl_elem_iface_t) 2) /* virtual mixer device */
 836#define SNDRV_CTL_ELEM_IFACE_PCM        ((__force snd_ctl_elem_iface_t) 3) /* PCM device */
 837#define SNDRV_CTL_ELEM_IFACE_RAWMIDI    ((__force snd_ctl_elem_iface_t) 4) /* RawMidi device */
 838#define SNDRV_CTL_ELEM_IFACE_TIMER      ((__force snd_ctl_elem_iface_t) 5) /* timer device */
 839#define SNDRV_CTL_ELEM_IFACE_SEQUENCER  ((__force snd_ctl_elem_iface_t) 6) /* sequencer client */
 840#define SNDRV_CTL_ELEM_IFACE_LAST       SNDRV_CTL_ELEM_IFACE_SEQUENCER
 841
 842#define SNDRV_CTL_ELEM_ACCESS_READ              (1<<0)
 843#define SNDRV_CTL_ELEM_ACCESS_WRITE             (1<<1)
 844#define SNDRV_CTL_ELEM_ACCESS_READWRITE         (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE)
 845#define SNDRV_CTL_ELEM_ACCESS_VOLATILE          (1<<2)  /* control value may be changed without a notification */
 846#define SNDRV_CTL_ELEM_ACCESS_TIMESTAMP         (1<<3)  /* when was control changed */
 847#define SNDRV_CTL_ELEM_ACCESS_TLV_READ          (1<<4)  /* TLV read is possible */
 848#define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE         (1<<5)  /* TLV write is possible */
 849#define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE     (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE)
 850#define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND       (1<<6)  /* TLV command is possible */
 851#define SNDRV_CTL_ELEM_ACCESS_INACTIVE          (1<<8)  /* control does actually nothing, but may be updated */
 852#define SNDRV_CTL_ELEM_ACCESS_LOCK              (1<<9)  /* write lock */
 853#define SNDRV_CTL_ELEM_ACCESS_OWNER             (1<<10) /* write lock owner */
 854#define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK      (1<<28) /* kernel use a TLV callback */ 
 855#define SNDRV_CTL_ELEM_ACCESS_USER              (1<<29) /* user space element */
 856/* bits 30 and 31 are obsoleted (for indirect access) */
 857
 858/* for further details see the ACPI and PCI power management specification */
 859#define SNDRV_CTL_POWER_D0              0x0000  /* full On */
 860#define SNDRV_CTL_POWER_D1              0x0100  /* partial On */
 861#define SNDRV_CTL_POWER_D2              0x0200  /* partial On */
 862#define SNDRV_CTL_POWER_D3              0x0300  /* Off */
 863#define SNDRV_CTL_POWER_D3hot           (SNDRV_CTL_POWER_D3|0x0000)     /* Off, with power */
 864#define SNDRV_CTL_POWER_D3cold          (SNDRV_CTL_POWER_D3|0x0001)     /* Off, without power */
 865
 866#define SNDRV_CTL_ELEM_ID_NAME_MAXLEN   44
 867
 868struct snd_ctl_elem_id {
 869        unsigned int numid;             /* numeric identifier, zero = invalid */
 870        snd_ctl_elem_iface_t iface;     /* interface identifier */
 871        unsigned int device;            /* device/client number */
 872        unsigned int subdevice;         /* subdevice (substream) number */
 873        unsigned char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];              /* ASCII name of item */
 874        unsigned int index;             /* index of item */
 875};
 876
 877struct snd_ctl_elem_list {
 878        unsigned int offset;            /* W: first element ID to get */
 879        unsigned int space;             /* W: count of element IDs to get */
 880        unsigned int used;              /* R: count of element IDs set */
 881        unsigned int count;             /* R: count of all elements */
 882        struct snd_ctl_elem_id __user *pids; /* R: IDs */
 883        unsigned char reserved[50];
 884};
 885
 886struct snd_ctl_elem_info {
 887        struct snd_ctl_elem_id id;      /* W: element ID */
 888        snd_ctl_elem_type_t type;       /* R: value type - SNDRV_CTL_ELEM_TYPE_* */
 889        unsigned int access;            /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */
 890        unsigned int count;             /* count of values */
 891        __kernel_pid_t owner;           /* owner's PID of this control */
 892        union {
 893                struct {
 894                        long min;               /* R: minimum value */
 895                        long max;               /* R: maximum value */
 896                        long step;              /* R: step (0 variable) */
 897                } integer;
 898                struct {
 899                        long long min;          /* R: minimum value */
 900                        long long max;          /* R: maximum value */
 901                        long long step;         /* R: step (0 variable) */
 902                } integer64;
 903                struct {
 904                        unsigned int items;     /* R: number of items */
 905                        unsigned int item;      /* W: item number */
 906                        char name[64];          /* R: value name */
 907                        __u64 names_ptr;        /* W: names list (ELEM_ADD only) */
 908                        unsigned int names_length;
 909                } enumerated;
 910                unsigned char reserved[128];
 911        } value;
 912        union {
 913                unsigned short d[4];            /* dimensions */
 914                unsigned short *d_ptr;          /* indirect - obsoleted */
 915        } dimen;
 916        unsigned char reserved[64-4*sizeof(unsigned short)];
 917};
 918
 919struct snd_ctl_elem_value {
 920        struct snd_ctl_elem_id id;      /* W: element ID */
 921        unsigned int indirect: 1;       /* W: indirect access - obsoleted */
 922        union {
 923                union {
 924                        long value[128];
 925                        long *value_ptr;        /* obsoleted */
 926                } integer;
 927                union {
 928                        long long value[64];
 929                        long long *value_ptr;   /* obsoleted */
 930                } integer64;
 931                union {
 932                        unsigned int item[128];
 933                        unsigned int *item_ptr; /* obsoleted */
 934                } enumerated;
 935                union {
 936                        unsigned char data[512];
 937                        unsigned char *data_ptr;        /* obsoleted */
 938                } bytes;
 939                struct snd_aes_iec958 iec958;
 940        } value;                /* RO */
 941        struct timespec tstamp;
 942        unsigned char reserved[128-sizeof(struct timespec)];
 943};
 944
 945struct snd_ctl_tlv {
 946        unsigned int numid;     /* control element numeric identification */
 947        unsigned int length;    /* in bytes aligned to 4 */
 948        unsigned int tlv[0];    /* first TLV */
 949};
 950
 951#define SNDRV_CTL_IOCTL_PVERSION        _IOR('U', 0x00, int)
 952#define SNDRV_CTL_IOCTL_CARD_INFO       _IOR('U', 0x01, struct snd_ctl_card_info)
 953#define SNDRV_CTL_IOCTL_ELEM_LIST       _IOWR('U', 0x10, struct snd_ctl_elem_list)
 954#define SNDRV_CTL_IOCTL_ELEM_INFO       _IOWR('U', 0x11, struct snd_ctl_elem_info)
 955#define SNDRV_CTL_IOCTL_ELEM_READ       _IOWR('U', 0x12, struct snd_ctl_elem_value)
 956#define SNDRV_CTL_IOCTL_ELEM_WRITE      _IOWR('U', 0x13, struct snd_ctl_elem_value)
 957#define SNDRV_CTL_IOCTL_ELEM_LOCK       _IOW('U', 0x14, struct snd_ctl_elem_id)
 958#define SNDRV_CTL_IOCTL_ELEM_UNLOCK     _IOW('U', 0x15, struct snd_ctl_elem_id)
 959#define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int)
 960#define SNDRV_CTL_IOCTL_ELEM_ADD        _IOWR('U', 0x17, struct snd_ctl_elem_info)
 961#define SNDRV_CTL_IOCTL_ELEM_REPLACE    _IOWR('U', 0x18, struct snd_ctl_elem_info)
 962#define SNDRV_CTL_IOCTL_ELEM_REMOVE     _IOWR('U', 0x19, struct snd_ctl_elem_id)
 963#define SNDRV_CTL_IOCTL_TLV_READ        _IOWR('U', 0x1a, struct snd_ctl_tlv)
 964#define SNDRV_CTL_IOCTL_TLV_WRITE       _IOWR('U', 0x1b, struct snd_ctl_tlv)
 965#define SNDRV_CTL_IOCTL_TLV_COMMAND     _IOWR('U', 0x1c, struct snd_ctl_tlv)
 966#define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int)
 967#define SNDRV_CTL_IOCTL_HWDEP_INFO      _IOR('U', 0x21, struct snd_hwdep_info)
 968#define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int)
 969#define SNDRV_CTL_IOCTL_PCM_INFO        _IOWR('U', 0x31, struct snd_pcm_info)
 970#define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int)
 971#define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int)
 972#define SNDRV_CTL_IOCTL_RAWMIDI_INFO    _IOWR('U', 0x41, struct snd_rawmidi_info)
 973#define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int)
 974#define SNDRV_CTL_IOCTL_POWER           _IOWR('U', 0xd0, int)
 975#define SNDRV_CTL_IOCTL_POWER_STATE     _IOR('U', 0xd1, int)
 976
 977/*
 978 *  Read interface.
 979 */
 980
 981enum sndrv_ctl_event_type {
 982        SNDRV_CTL_EVENT_ELEM = 0,
 983        SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM,
 984};
 985
 986#define SNDRV_CTL_EVENT_MASK_VALUE      (1<<0)  /* element value was changed */
 987#define SNDRV_CTL_EVENT_MASK_INFO       (1<<1)  /* element info was changed */
 988#define SNDRV_CTL_EVENT_MASK_ADD        (1<<2)  /* element was added */
 989#define SNDRV_CTL_EVENT_MASK_TLV        (1<<3)  /* element TLV tree was changed */
 990#define SNDRV_CTL_EVENT_MASK_REMOVE     (~0U)   /* element was removed */
 991
 992struct snd_ctl_event {
 993        int type;       /* event type - SNDRV_CTL_EVENT_* */
 994        union {
 995                struct {
 996                        unsigned int mask;
 997                        struct snd_ctl_elem_id id;
 998                } elem;
 999                unsigned char data8[60];
1000        } data;

1001};
1002
1003/*
1004 *  Control names
1005 */
1006
1007#define SNDRV_CTL_NAME_NONE                             ""
1008#define SNDRV_CTL_NAME_PLAYBACK                         "Playback "
1009#define SNDRV_CTL_NAME_CAPTURE                          "Capture "
1010
1011#define SNDRV_CTL_NAME_IEC958_NONE                      ""
1012#define SNDRV_CTL_NAME_IEC958_SWITCH                    "Switch"
1013#define SNDRV_CTL_NAME_IEC958_VOLUME                    "Volume"
1014#define SNDRV_CTL_NAME_IEC958_DEFAULT                   "Default"
1015#define SNDRV_CTL_NAME_IEC958_MASK                      "Mask"
1016#define SNDRV_CTL_NAME_IEC958_CON_MASK                  "Con Mask"
1017#define SNDRV_CTL_NAME_IEC958_PRO_MASK                  "Pro Mask"
1018#define SNDRV_CTL_NAME_IEC958_PCM_STREAM                "PCM Stream"
1019#define SNDRV_CTL_NAME_IEC958(expl,direction,what)      "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what
1020
1021#endif /* _UAPI__SOUND_ASOUND_H */
1022