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
  55 struct 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
  68 struct 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
  84 enum {
  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         SNDRV_HWDEP_IFACE_LINE6,        /* Line6 USB processors */
 110
 111         /* Don't forget to change the following: */
 112         SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_LINE6
 113 };
 114
 115 struct snd_hwdep_info {
 116         unsigned int device;            /* WR: device number */
 117         int card;                       /* R: card number */
 118         unsigned char id[64];           /* ID (user selectable) */
 119         unsigned char name[80];         /* hwdep name */
 120         int iface;                      /* hwdep interface */
 121         unsigned char reserved[64];     /* reserved for future */
 122 };
 123
 124 /* generic DSP loader */
 125 struct snd_hwdep_dsp_status {
 126         unsigned int version;           /* R: driver-specific version */
 127         unsigned char id[32];           /* R: driver-specific ID string */
 128         unsigned int num_dsps;          /* R: number of DSP images to transfer */
 129         unsigned int dsp_loaded;        /* R: bit flags indicating the loaded DSPs */
 130         unsigned int chip_ready;        /* R: 1 = initialization finished */
 131         unsigned char reserved[16];     /* reserved for future use */
 132 };
 133
 134 struct snd_hwdep_dsp_image {
 135         unsigned int index;             /* W: DSP index */
 136         unsigned char name[64];         /* W: ID (e.g. file name) */
 137         unsigned char __user *image;    /* W: binary image */
 138         size_t length;                  /* W: size of image in bytes */
 139         unsigned long driver_data;      /* W: driver-specific data */
 140 };
 141
 142 #define SNDRV_HWDEP_IOCTL_PVERSION      _IOR ('H', 0x00, int)
 143 #define SNDRV_HWDEP_IOCTL_INFO          _IOR ('H', 0x01, struct snd_hwdep_info)
 144 #define SNDRV_HWDEP_IOCTL_DSP_STATUS    _IOR('H', 0x02, struct snd_hwdep_dsp_status)
 145 #define SNDRV_HWDEP_IOCTL_DSP_LOAD      _IOW('H', 0x03, struct snd_hwdep_dsp_image)
 146
 147 /*****************************************************************************
 148  *                                                                           *
 149  *             Digital Audio (PCM) interface - /dev/snd/pcm??                *
 150  *                                                                           *
 151  *****************************************************************************/
 152
 153 #define SNDRV_PCM_VERSION               SNDRV_PROTOCOL_VERSION(2, 0, 13)
 154
 155 typedef unsigned long snd_pcm_uframes_t;
 156 typedef signed long snd_pcm_sframes_t;
 157
 158 enum {
 159         SNDRV_PCM_CLASS_GENERIC = 0,    /* standard mono or stereo device */
 160         SNDRV_PCM_CLASS_MULTI,          /* multichannel device */
 161         SNDRV_PCM_CLASS_MODEM,          /* software modem class */
 162         SNDRV_PCM_CLASS_DIGITIZER,      /* digitizer class */
 163         /* Don't forget to change the following: */
 164         SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER,
 165 };
 166
 167 enum {
 168         SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, /* mono or stereo subdevices are mixed together */
 169         SNDRV_PCM_SUBCLASS_MULTI_MIX,   /* multichannel subdevices are mixed together */
 170         /* Don't forget to change the following: */
 171         SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX,
 172 };
 173
 174 enum {
 175         SNDRV_PCM_STREAM_PLAYBACK = 0,
 176         SNDRV_PCM_STREAM_CAPTURE,
 177         SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE,
 178 };
 179
 180 typedef int __bitwise snd_pcm_access_t;
 181 #define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED       ((__force snd_pcm_access_t) 0) /* interleaved mmap */
 182 #define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED    ((__force snd_pcm_access_t) 1) /* noninterleaved mmap */
 183 #define SNDRV_PCM_ACCESS_MMAP_COMPLEX           ((__force snd_pcm_access_t) 2) /* complex mmap */
 184 #define SNDRV_PCM_ACCESS_RW_INTERLEAVED         ((__force snd_pcm_access_t) 3) /* readi/writei */
 185 #define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED      ((__force snd_pcm_access_t) 4) /* readn/writen */
 186 #define SNDRV_PCM_ACCESS_LAST           SNDRV_PCM_ACCESS_RW_NONINTERLEAVED
 187
 188 typedef int __bitwise snd_pcm_format_t;
 189 #define SNDRV_PCM_FORMAT_S8     ((__force snd_pcm_format_t) 0)
 190 #define SNDRV_PCM_FORMAT_U8     ((__force snd_pcm_format_t) 1)
 191 #define SNDRV_PCM_FORMAT_S16_LE ((__force snd_pcm_format_t) 2)
 192 #define SNDRV_PCM_FORMAT_S16_BE ((__force snd_pcm_format_t) 3)
 193 #define SNDRV_PCM_FORMAT_U16_LE ((__force snd_pcm_format_t) 4)
 194 #define SNDRV_PCM_FORMAT_U16_BE ((__force snd_pcm_format_t) 5)
 195 #define SNDRV_PCM_FORMAT_S24_LE ((__force snd_pcm_format_t) 6) /* low three bytes */
 196 #define SNDRV_PCM_FORMAT_S24_BE ((__force snd_pcm_format_t) 7) /* low three bytes */
 197 #define SNDRV_PCM_FORMAT_U24_LE ((__force snd_pcm_format_t) 8) /* low three bytes */
 198 #define SNDRV_PCM_FORMAT_U24_BE ((__force snd_pcm_format_t) 9) /* low three bytes */
 199 #define SNDRV_PCM_FORMAT_S32_LE ((__force snd_pcm_format_t) 10)
 200 #define SNDRV_PCM_FORMAT_S32_BE ((__force snd_pcm_format_t) 11)
 201 #define SNDRV_PCM_FORMAT_U32_LE ((__force snd_pcm_format_t) 12)
 202 #define SNDRV_PCM_FORMAT_U32_BE ((__force snd_pcm_format_t) 13)
 203 #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 */
 204 #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 */
 205 #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 */
 206 #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 */
 207 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((__force snd_pcm_format_t) 18) /* IEC-958 subframe, Little Endian */
 208 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((__force snd_pcm_format_t) 19) /* IEC-958 subframe, Big Endian */
 209 #define SNDRV_PCM_FORMAT_MU_LAW         ((__force snd_pcm_format_t) 20)
 210 #define SNDRV_PCM_FORMAT_A_LAW          ((__force snd_pcm_format_t) 21)
 211 #define SNDRV_PCM_FORMAT_IMA_ADPCM      ((__force snd_pcm_format_t) 22)
 212 #define SNDRV_PCM_FORMAT_MPEG           ((__force snd_pcm_format_t) 23)
 213 #define SNDRV_PCM_FORMAT_GSM            ((__force snd_pcm_format_t) 24)
 214 #define SNDRV_PCM_FORMAT_SPECIAL        ((__force snd_pcm_format_t) 31)
 215 #define SNDRV_PCM_FORMAT_S24_3LE        ((__force snd_pcm_format_t) 32) /* in three bytes */
 216 #define SNDRV_PCM_FORMAT_S24_3BE        ((__force snd_pcm_format_t) 33) /* in three bytes */
 217 #define SNDRV_PCM_FORMAT_U24_3LE        ((__force snd_pcm_format_t) 34) /* in three bytes */
 218 #define SNDRV_PCM_FORMAT_U24_3BE        ((__force snd_pcm_format_t) 35) /* in three bytes */
 219 #define SNDRV_PCM_FORMAT_S20_3LE        ((__force snd_pcm_format_t) 36) /* in three bytes */
 220 #define SNDRV_PCM_FORMAT_S20_3BE        ((__force snd_pcm_format_t) 37) /* in three bytes */
 221 #define SNDRV_PCM_FORMAT_U20_3LE        ((__force snd_pcm_format_t) 38) /* in three bytes */
 222 #define SNDRV_PCM_FORMAT_U20_3BE        ((__force snd_pcm_format_t) 39) /* in three bytes */
 223 #define SNDRV_PCM_FORMAT_S18_3LE        ((__force snd_pcm_format_t) 40) /* in three bytes */
 224 #define SNDRV_PCM_FORMAT_S18_3BE        ((__force snd_pcm_format_t) 41) /* in three bytes */
 225 #define SNDRV_PCM_FORMAT_U18_3LE        ((__force snd_pcm_format_t) 42) /* in three bytes */
 226 #define SNDRV_PCM_FORMAT_U18_3BE        ((__force snd_pcm_format_t) 43) /* in three bytes */
 227 #define SNDRV_PCM_FORMAT_G723_24        ((__force snd_pcm_format_t) 44) /* 8 samples in 3 bytes */
 228 #define SNDRV_PCM_FORMAT_G723_24_1B     ((__force snd_pcm_format_t) 45) /* 1 sample in 1 byte */
 229 #define SNDRV_PCM_FORMAT_G723_40        ((__force snd_pcm_format_t) 46) /* 8 Samples in 5 bytes */
 230 #define SNDRV_PCM_FORMAT_G723_40_1B     ((__force snd_pcm_format_t) 47) /* 1 sample in 1 byte */
 231 #define SNDRV_PCM_FORMAT_DSD_U8         ((__force snd_pcm_format_t) 48) /* DSD, 1-byte samples DSD (x8) */
 232 #define SNDRV_PCM_FORMAT_DSD_U16_LE     ((__force snd_pcm_format_t) 49) /* DSD, 2-byte samples DSD (x16), little endian */
 233 #define SNDRV_PCM_FORMAT_DSD_U32_LE     ((__force snd_pcm_format_t) 50) /* DSD, 4-byte samples DSD (x32), little endian */
 234 #define SNDRV_PCM_FORMAT_DSD_U16_BE     ((__force snd_pcm_format_t) 51) /* DSD, 2-byte samples DSD (x16), big endian */
 235 #define SNDRV_PCM_FORMAT_DSD_U32_BE     ((__force snd_pcm_format_t) 52) /* DSD, 4-byte samples DSD (x32), big endian */
 236 #define SNDRV_PCM_FORMAT_LAST           SNDRV_PCM_FORMAT_DSD_U32_BE
 237
 238 #ifdef SNDRV_LITTLE_ENDIAN
 239 #define SNDRV_PCM_FORMAT_S16            SNDRV_PCM_FORMAT_S16_LE
 240 #define SNDRV_PCM_FORMAT_U16            SNDRV_PCM_FORMAT_U16_LE
 241 #define SNDRV_PCM_FORMAT_S24            SNDRV_PCM_FORMAT_S24_LE
 242 #define SNDRV_PCM_FORMAT_U24            SNDRV_PCM_FORMAT_U24_LE
 243 #define SNDRV_PCM_FORMAT_S32            SNDRV_PCM_FORMAT_S32_LE
 244 #define SNDRV_PCM_FORMAT_U32            SNDRV_PCM_FORMAT_U32_LE
 245 #define SNDRV_PCM_FORMAT_FLOAT          SNDRV_PCM_FORMAT_FLOAT_LE
 246 #define SNDRV_PCM_FORMAT_FLOAT64        SNDRV_PCM_FORMAT_FLOAT64_LE
 247 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE
 248 #endif
 249 #ifdef SNDRV_BIG_ENDIAN
 250 #define SNDRV_PCM_FORMAT_S16            SNDRV_PCM_FORMAT_S16_BE
 251 #define SNDRV_PCM_FORMAT_U16            SNDRV_PCM_FORMAT_U16_BE
 252 #define SNDRV_PCM_FORMAT_S24            SNDRV_PCM_FORMAT_S24_BE
 253 #define SNDRV_PCM_FORMAT_U24            SNDRV_PCM_FORMAT_U24_BE
 254 #define SNDRV_PCM_FORMAT_S32            SNDRV_PCM_FORMAT_S32_BE
 255 #define SNDRV_PCM_FORMAT_U32            SNDRV_PCM_FORMAT_U32_BE
 256 #define SNDRV_PCM_FORMAT_FLOAT          SNDRV_PCM_FORMAT_FLOAT_BE
 257 #define SNDRV_PCM_FORMAT_FLOAT64        SNDRV_PCM_FORMAT_FLOAT64_BE
 258 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE
 259 #endif
 260
 261 typedef int __bitwise snd_pcm_subformat_t;
 262 #define SNDRV_PCM_SUBFORMAT_STD         ((__force snd_pcm_subformat_t) 0)
 263 #define SNDRV_PCM_SUBFORMAT_LAST        SNDRV_PCM_SUBFORMAT_STD
 264
 265 #define SNDRV_PCM_INFO_MMAP             0x00000001      /* hardware supports mmap */
 266 #define SNDRV_PCM_INFO_MMAP_VALID       0x00000002      /* period data are valid during transfer */
 267 #define SNDRV_PCM_INFO_DOUBLE           0x00000004      /* Double buffering needed for PCM start/stop */
 268 #define SNDRV_PCM_INFO_BATCH            0x00000010      /* double buffering */
 269 #define SNDRV_PCM_INFO_INTERLEAVED      0x00000100      /* channels are interleaved */
 270 #define SNDRV_PCM_INFO_NONINTERLEAVED   0x00000200      /* channels are not interleaved */
 271 #define SNDRV_PCM_INFO_COMPLEX          0x00000400      /* complex frame organization (mmap only) */
 272 #define SNDRV_PCM_INFO_BLOCK_TRANSFER   0x00010000      /* hardware transfer block of samples */
 273 #define SNDRV_PCM_INFO_OVERRANGE        0x00020000      /* hardware supports ADC (capture) overrange detection */
 274 #define SNDRV_PCM_INFO_RESUME           0x00040000      /* hardware supports stream resume after suspend */
 275 #define SNDRV_PCM_INFO_PAUSE            0x00080000      /* pause ioctl is supported */
 276 #define SNDRV_PCM_INFO_HALF_DUPLEX      0x00100000      /* only half duplex */
 277 #define SNDRV_PCM_INFO_JOINT_DUPLEX     0x00200000      /* playback and capture stream are somewhat correlated */
 278 #define SNDRV_PCM_INFO_SYNC_START       0x00400000      /* pcm support some kind of sync go */
 279 #define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP 0x00800000      /* period wakeup can be disabled */
 280 #define SNDRV_PCM_INFO_HAS_WALL_CLOCK   0x01000000      /* (Deprecated)has audio wall clock for audio/system time sync */
 281 #define SNDRV_PCM_INFO_HAS_LINK_ATIME              0x01000000  /* report hardware link audio time, reset on startup */
 282 #define SNDRV_PCM_INFO_HAS_LINK_ABSOLUTE_ATIME     0x02000000  /* report absolute hardware link audio time, not reset on startup */
 283 #define SNDRV_PCM_INFO_HAS_LINK_ESTIMATED_ATIME    0x04000000  /* report estimated link audio time */
 284 #define SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME 0x08000000  /* report synchronized audio/system time */
 285
 286 #define SNDRV_PCM_INFO_DRAIN_TRIGGER    0x40000000              /* internal kernel flag - trigger in drain */
 287 #define SNDRV_PCM_INFO_FIFO_IN_FRAMES   0x80000000      /* internal kernel flag - FIFO size is in frames */
 288
 289
 290
 291 typedef int __bitwise snd_pcm_state_t;
 292 #define SNDRV_PCM_STATE_OPEN            ((__force snd_pcm_state_t) 0) /* stream is open */
 293 #define SNDRV_PCM_STATE_SETUP           ((__force snd_pcm_state_t) 1) /* stream has a setup */
 294 #define SNDRV_PCM_STATE_PREPARED        ((__force snd_pcm_state_t) 2) /* stream is ready to start */
 295 #define SNDRV_PCM_STATE_RUNNING         ((__force snd_pcm_state_t) 3) /* stream is running */
 296 #define SNDRV_PCM_STATE_XRUN            ((__force snd_pcm_state_t) 4) /* stream reached an xrun */
 297 #define SNDRV_PCM_STATE_DRAINING        ((__force snd_pcm_state_t) 5) /* stream is draining */
 298 #define SNDRV_PCM_STATE_PAUSED          ((__force snd_pcm_state_t) 6) /* stream is paused */
 299 #define SNDRV_PCM_STATE_SUSPENDED       ((__force snd_pcm_state_t) 7) /* hardware is suspended */
 300 #define SNDRV_PCM_STATE_DISCONNECTED    ((__force snd_pcm_state_t) 8) /* hardware is disconnected */
 301 #define SNDRV_PCM_STATE_LAST            SNDRV_PCM_STATE_DISCONNECTED
 302
 303 enum {
 304         SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000,
 305         SNDRV_PCM_MMAP_OFFSET_STATUS = 0x80000000,
 306         SNDRV_PCM_MMAP_OFFSET_CONTROL = 0x81000000,
 307 };
 308
 309 union snd_pcm_sync_id {
 310         unsigned char id[16];
 311         unsigned short id16[8];
 312         unsigned int id32[4];
 313 };
 314
 315 struct snd_pcm_info {
 316         unsigned int device;            /* RO/WR (control): device number */
 317         unsigned int subdevice;         /* RO/WR (control): subdevice number */
 318         int stream;                     /* RO/WR (control): stream direction */
 319         int card;                       /* R: card number */
 320         unsigned char id[64];           /* ID (user selectable) */
 321         unsigned char name[80];         /* name of this device */
 322         unsigned char subname[32];      /* subdevice name */
 323         int dev_class;                  /* SNDRV_PCM_CLASS_* */
 324         int dev_subclass;               /* SNDRV_PCM_SUBCLASS_* */
 325         unsigned int subdevices_count;
 326         unsigned int subdevices_avail;
 327         union snd_pcm_sync_id sync;     /* hardware synchronization ID */
 328         unsigned char reserved[64];     /* reserved for future... */
 329 };
 330
 331 typedef int snd_pcm_hw_param_t;
 332 #define SNDRV_PCM_HW_PARAM_ACCESS       0       /* Access type */
 333 #define SNDRV_PCM_HW_PARAM_FORMAT       1       /* Format */
 334 #define SNDRV_PCM_HW_PARAM_SUBFORMAT    2       /* Subformat */
 335 #define SNDRV_PCM_HW_PARAM_FIRST_MASK   SNDRV_PCM_HW_PARAM_ACCESS
 336 #define SNDRV_PCM_HW_PARAM_LAST_MASK    SNDRV_PCM_HW_PARAM_SUBFORMAT
 337
 338 #define SNDRV_PCM_HW_PARAM_SAMPLE_BITS  8       /* Bits per sample */
 339 #define SNDRV_PCM_HW_PARAM_FRAME_BITS   9       /* Bits per frame */
 340 #define SNDRV_PCM_HW_PARAM_CHANNELS     10      /* Channels */
 341 #define SNDRV_PCM_HW_PARAM_RATE         11      /* Approx rate */
 342 #define SNDRV_PCM_HW_PARAM_PERIOD_TIME  12      /* Approx distance between
 343                                                  * interrupts in us
 344                                                  */
 345 #define SNDRV_PCM_HW_PARAM_PERIOD_SIZE  13      /* Approx frames between
 346                                                  * interrupts
 347                                                  */
 348 #define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14      /* Approx bytes between
 349                                                  * interrupts
 350                                                  */
 351 #define SNDRV_PCM_HW_PARAM_PERIODS      15      /* Approx interrupts per
 352                                                  * buffer
 353                                                  */
 354 #define SNDRV_PCM_HW_PARAM_BUFFER_TIME  16      /* Approx duration of buffer
 355                                                  * in us
 356                                                  */
 357 #define SNDRV_PCM_HW_PARAM_BUFFER_SIZE  17      /* Size of buffer in frames */
 358 #define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18      /* Size of buffer in bytes */
 359 #define SNDRV_PCM_HW_PARAM_TICK_TIME    19      /* Approx tick duration in us */
 360 #define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL       SNDRV_PCM_HW_PARAM_SAMPLE_BITS
 361 #define SNDRV_PCM_HW_PARAM_LAST_INTERVAL        SNDRV_PCM_HW_PARAM_TICK_TIME
 362
 363 #define SNDRV_PCM_HW_PARAMS_NORESAMPLE  (1<<0)  /* avoid rate resampling */
 364 #define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER       (1<<1)  /* export buffer */
 365 #define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP    (1<<2)  /* disable period wakeups */
 366
 367 struct snd_interval {
 368         unsigned int min, max;
 369         unsigned int openmin:1,
 370                      openmax:1,
 371                      integer:1,
 372                      empty:1;
 373 };
 374
 375 #define SNDRV_MASK_MAX  256
 376
 377 struct snd_mask {
 378         __u32 bits[(SNDRV_MASK_MAX+31)/32];
 379 };
 380
 381 struct snd_pcm_hw_params {
 382         unsigned int flags;
 383         struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK -
 384                                SNDRV_PCM_HW_PARAM_FIRST_MASK + 1];
 385         struct snd_mask mres[5];        /* reserved masks */
 386         struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL -
 387                                         SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1];
 388         struct snd_interval ires[9];    /* reserved intervals */
 389         unsigned int rmask;             /* W: requested masks */
 390         unsigned int cmask;             /* R: changed masks */
 391         unsigned int info;              /* R: Info flags for returned setup */
 392         unsigned int msbits;            /* R: used most significant bits */
 393         unsigned int rate_num;          /* R: rate numerator */
 394         unsigned int rate_den;          /* R: rate denominator */
 395         snd_pcm_uframes_t fifo_size;    /* R: chip FIFO size in frames */
 396         unsigned char reserved[64];     /* reserved for future */
 397 };
 398
 399 enum {
 400         SNDRV_PCM_TSTAMP_NONE = 0,
 401         SNDRV_PCM_TSTAMP_ENABLE,
 402         SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE,
 403 };
 404
 405 struct snd_pcm_sw_params {
 406         int tstamp_mode;                        /* timestamp mode */
 407         unsigned int period_step;
 408         unsigned int sleep_min;                 /* min ticks to sleep */
 409         snd_pcm_uframes_t avail_min;            /* min avail frames for wakeup */
 410         snd_pcm_uframes_t xfer_align;           /* obsolete: xfer size need to be a multiple */
 411         snd_pcm_uframes_t start_threshold;      /* min hw_avail frames for automatic start */
 412         snd_pcm_uframes_t stop_threshold;       /* min avail frames for automatic stop */
 413         snd_pcm_uframes_t silence_threshold;    /* min distance from noise for silence filling */
 414         snd_pcm_uframes_t silence_size;         /* silence block size */
 415         snd_pcm_uframes_t boundary;             /* pointers wrap point */
 416         unsigned int proto;                     /* protocol version */
 417         unsigned int tstamp_type;               /* timestamp type (req. proto >= 2.0.12) */
 418         unsigned char reserved[56];             /* reserved for future */
 419 };
 420
 421 struct snd_pcm_channel_info {
 422         unsigned int channel;
 423         __kernel_off_t offset;          /* mmap offset */
 424         unsigned int first;             /* offset to first sample in bits */
 425         unsigned int step;              /* samples distance in bits */
 426 };
 427
 428 enum {
 429         /*
 430          *  first definition for backwards compatibility only,
 431          *  maps to wallclock/link time for HDAudio playback and DEFAULT/DMA time for everything else
 432          */
 433         SNDRV_PCM_AUDIO_TSTAMP_TYPE_COMPAT = 0,
 434
 435         /* timestamp definitions */
 436         SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT = 1,           /* DMA time, reported as per hw_ptr */
 437         SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK = 2,              /* link time reported by sample or wallclock counter, reset on startup */
 438         SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE = 3,     /* link time reported by sample or wallclock counter, not reset on startup */
 439         SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED = 4,    /* link time estimated indirectly */
 440         SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED = 5, /* link time synchronized with system time */
 441         SNDRV_PCM_AUDIO_TSTAMP_TYPE_LAST = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED
 442 };
 443
 444 struct snd_pcm_status {
 445         snd_pcm_state_t state;          /* stream state */
 446         struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */
 447         struct timespec tstamp;         /* reference timestamp */
 448         snd_pcm_uframes_t appl_ptr;     /* appl ptr */
 449         snd_pcm_uframes_t hw_ptr;       /* hw ptr */
 450         snd_pcm_sframes_t delay;        /* current delay in frames */
 451         snd_pcm_uframes_t avail;        /* number of frames available */
 452         snd_pcm_uframes_t avail_max;    /* max frames available on hw since last status */
 453         snd_pcm_uframes_t overrange;    /* count of ADC (capture) overrange detections from last status */
 454         snd_pcm_state_t suspended_state; /* suspended stream state */
 455         __u32 audio_tstamp_data;         /* needed for 64-bit alignment, used for configs/report to/from userspace */
 456         struct timespec audio_tstamp;   /* sample counter, wall clock, PHC or on-demand sync'ed */
 457         struct timespec driver_tstamp;  /* useful in case reference system tstamp is reported with delay */
 458         __u32 audio_tstamp_accuracy;    /* in ns units, only valid if indicated in audio_tstamp_data */
 459         unsigned char reserved[52-2*sizeof(struct timespec)]; /* must be filled with zero */
 460 };
 461
 462 struct snd_pcm_mmap_status {
 463         snd_pcm_state_t state;          /* RO: state - SNDRV_PCM_STATE_XXXX */
 464         int pad1;                       /* Needed for 64 bit alignment */
 465         snd_pcm_uframes_t hw_ptr;       /* RO: hw ptr (0...boundary-1) */
 466         struct timespec tstamp;         /* Timestamp */
 467         snd_pcm_state_t suspended_state; /* RO: suspended stream state */
 468         struct timespec audio_tstamp;   /* from sample counter or wall clock */
 469 };
 470
 471 struct snd_pcm_mmap_control {
 472         snd_pcm_uframes_t appl_ptr;     /* RW: appl ptr (0...boundary-1) */
 473         snd_pcm_uframes_t avail_min;    /* RW: min available frames for wakeup */
 474 };
 475
 476 #define SNDRV_PCM_SYNC_PTR_HWSYNC       (1<<0)  /* execute hwsync */
 477 #define SNDRV_PCM_SYNC_PTR_APPL         (1<<1)  /* get appl_ptr from driver (r/w op) */
 478 #define SNDRV_PCM_SYNC_PTR_AVAIL_MIN    (1<<2)  /* get avail_min from driver */
 479
 480 struct snd_pcm_sync_ptr {
 481         unsigned int flags;
 482         union {
 483                 struct snd_pcm_mmap_status status;
 484                 unsigned char reserved[64];
 485         } s;
 486         union {
 487                 struct snd_pcm_mmap_control control;
 488                 unsigned char reserved[64];
 489         } c;
 490 };
 491
 492 struct snd_xferi {
 493         snd_pcm_sframes_t result;
 494         void __user *buf;
 495         snd_pcm_uframes_t frames;
 496 };
 497
 498 struct snd_xfern {
 499         snd_pcm_sframes_t result;
 500         void __user * __user *bufs;
 501         snd_pcm_uframes_t frames;
 502 };
 503
 504 enum {
 505         SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0, /* gettimeofday equivalent */
 506         SNDRV_PCM_TSTAMP_TYPE_MONOTONIC,        /* posix_clock_monotonic equivalent */
 507         SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW,    /* monotonic_raw (no NTP) */
 508         SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW,
 509 };
 510
 511 /* channel positions */
 512 enum {
 513         SNDRV_CHMAP_UNKNOWN = 0,
 514         SNDRV_CHMAP_NA,         /* N/A, silent */
 515         SNDRV_CHMAP_MONO,       /* mono stream */
 516         /* this follows the alsa-lib mixer channel value + 3 */
 517         SNDRV_CHMAP_FL,         /* front left */
 518         SNDRV_CHMAP_FR,         /* front right */
 519         SNDRV_CHMAP_RL,         /* rear left */
 520         SNDRV_CHMAP_RR,         /* rear right */
 521         SNDRV_CHMAP_FC,         /* front center */
 522         SNDRV_CHMAP_LFE,        /* LFE */
 523         SNDRV_CHMAP_SL,         /* side left */
 524         SNDRV_CHMAP_SR,         /* side right */
 525         SNDRV_CHMAP_RC,         /* rear center */
 526         /* new definitions */
 527         SNDRV_CHMAP_FLC,        /* front left center */
 528         SNDRV_CHMAP_FRC,        /* front right center */
 529         SNDRV_CHMAP_RLC,        /* rear left center */
 530         SNDRV_CHMAP_RRC,        /* rear right center */
 531         SNDRV_CHMAP_FLW,        /* front left wide */
 532         SNDRV_CHMAP_FRW,        /* front right wide */
 533         SNDRV_CHMAP_FLH,        /* front left high */
 534         SNDRV_CHMAP_FCH,        /* front center high */
 535         SNDRV_CHMAP_FRH,        /* front right high */
 536         SNDRV_CHMAP_TC,         /* top center */
 537         SNDRV_CHMAP_TFL,        /* top front left */
 538         SNDRV_CHMAP_TFR,        /* top front right */
 539         SNDRV_CHMAP_TFC,        /* top front center */
 540         SNDRV_CHMAP_TRL,        /* top rear left */
 541         SNDRV_CHMAP_TRR,        /* top rear right */
 542         SNDRV_CHMAP_TRC,        /* top rear center */
 543         /* new definitions for UAC2 */
 544         SNDRV_CHMAP_TFLC,       /* top front left center */
 545         SNDRV_CHMAP_TFRC,       /* top front right center */
 546         SNDRV_CHMAP_TSL,        /* top side left */
 547         SNDRV_CHMAP_TSR,        /* top side right */
 548         SNDRV_CHMAP_LLFE,       /* left LFE */
 549         SNDRV_CHMAP_RLFE,       /* right LFE */
 550         SNDRV_CHMAP_BC,         /* bottom center */
 551         SNDRV_CHMAP_BLC,        /* bottom left center */
 552         SNDRV_CHMAP_BRC,        /* bottom right center */
 553         SNDRV_CHMAP_LAST = SNDRV_CHMAP_BRC,
 554 };
 555
 556 #define SNDRV_CHMAP_POSITION_MASK       0xffff
 557 #define SNDRV_CHMAP_PHASE_INVERSE       (0x01 << 16)
 558 #define SNDRV_CHMAP_DRIVER_SPEC         (0x02 << 16)
 559
 560 #define SNDRV_PCM_IOCTL_PVERSION        _IOR('A', 0x00, int)
 561 #define SNDRV_PCM_IOCTL_INFO            _IOR('A', 0x01, struct snd_pcm_info)
 562 #define SNDRV_PCM_IOCTL_TSTAMP          _IOW('A', 0x02, int)
 563 #define SNDRV_PCM_IOCTL_TTSTAMP         _IOW('A', 0x03, int)
 564 #define SNDRV_PCM_IOCTL_HW_REFINE       _IOWR('A', 0x10, struct snd_pcm_hw_params)
 565 #define SNDRV_PCM_IOCTL_HW_PARAMS       _IOWR('A', 0x11, struct snd_pcm_hw_params)
 566 #define SNDRV_PCM_IOCTL_HW_FREE         _IO('A', 0x12)
 567 #define SNDRV_PCM_IOCTL_SW_PARAMS       _IOWR('A', 0x13, struct snd_pcm_sw_params)
 568 #define SNDRV_PCM_IOCTL_STATUS          _IOR('A', 0x20, struct snd_pcm_status)
 569 #define SNDRV_PCM_IOCTL_DELAY           _IOR('A', 0x21, snd_pcm_sframes_t)
 570 #define SNDRV_PCM_IOCTL_HWSYNC          _IO('A', 0x22)
 571 #define SNDRV_PCM_IOCTL_SYNC_PTR        _IOWR('A', 0x23, struct snd_pcm_sync_ptr)
 572 #define SNDRV_PCM_IOCTL_STATUS_EXT      _IOWR('A', 0x24, struct snd_pcm_status)
 573 #define SNDRV_PCM_IOCTL_CHANNEL_INFO    _IOR('A', 0x32, struct snd_pcm_channel_info)
 574 #define SNDRV_PCM_IOCTL_PREPARE         _IO('A', 0x40)
 575 #define SNDRV_PCM_IOCTL_RESET           _IO('A', 0x41)
 576 #define SNDRV_PCM_IOCTL_START           _IO('A', 0x42)
 577 #define SNDRV_PCM_IOCTL_DROP            _IO('A', 0x43)
 578 #define SNDRV_PCM_IOCTL_DRAIN           _IO('A', 0x44)
 579 #define SNDRV_PCM_IOCTL_PAUSE           _IOW('A', 0x45, int)
 580 #define SNDRV_PCM_IOCTL_REWIND          _IOW('A', 0x46, snd_pcm_uframes_t)
 581 #define SNDRV_PCM_IOCTL_RESUME          _IO('A', 0x47)
 582 #define SNDRV_PCM_IOCTL_XRUN            _IO('A', 0x48)
 583 #define SNDRV_PCM_IOCTL_FORWARD         _IOW('A', 0x49, snd_pcm_uframes_t)
 584 #define SNDRV_PCM_IOCTL_WRITEI_FRAMES   _IOW('A', 0x50, struct snd_xferi)
 585 #define SNDRV_PCM_IOCTL_READI_FRAMES    _IOR('A', 0x51, struct snd_xferi)
 586 #define SNDRV_PCM_IOCTL_WRITEN_FRAMES   _IOW('A', 0x52, struct snd_xfern)
 587 #define SNDRV_PCM_IOCTL_READN_FRAMES    _IOR('A', 0x53, struct snd_xfern)
 588 #define SNDRV_PCM_IOCTL_LINK            _IOW('A', 0x60, int)
 589 #define SNDRV_PCM_IOCTL_UNLINK          _IO('A', 0x61)
 590
 591 /*****************************************************************************
 592  *                                                                           *
 593  *                            MIDI v1.0 interface                            *
 594  *                                                                           *
 595  *****************************************************************************/
 596
 597 /*
 598  *  Raw MIDI section - /dev/snd/midi??
 599  */
 600
 601 #define SNDRV_RAWMIDI_VERSION           SNDRV_PROTOCOL_VERSION(2, 0, 0)
 602
 603 enum {
 604         SNDRV_RAWMIDI_STREAM_OUTPUT = 0,
 605         SNDRV_RAWMIDI_STREAM_INPUT,
 606         SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT,
 607 };
 608
 609 #define SNDRV_RAWMIDI_INFO_OUTPUT               0x00000001
 610 #define SNDRV_RAWMIDI_INFO_INPUT                0x00000002
 611 #define SNDRV_RAWMIDI_INFO_DUPLEX               0x00000004
 612
 613 struct snd_rawmidi_info {
 614         unsigned int device;            /* RO/WR (control): device number */
 615         unsigned int subdevice;         /* RO/WR (control): subdevice number */
 616         int stream;                     /* WR: stream */
 617         int card;                       /* R: card number */
 618         unsigned int flags;             /* SNDRV_RAWMIDI_INFO_XXXX */
 619         unsigned char id[64];           /* ID (user selectable) */
 620         unsigned char name[80];         /* name of device */
 621         unsigned char subname[32];      /* name of active or selected subdevice */
 622         unsigned int subdevices_count;
 623         unsigned int subdevices_avail;
 624         unsigned char reserved[64];     /* reserved for future use */
 625 };
 626
 627 struct snd_rawmidi_params {
 628         int stream;
 629         size_t buffer_size;             /* queue size in bytes */
 630         size_t avail_min;               /* minimum avail bytes for wakeup */
 631         unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */
 632         unsigned char reserved[16];     /* reserved for future use */
 633 };
 634
 635 struct snd_rawmidi_status {
 636         int stream;
 637         struct timespec tstamp;         /* Timestamp */
 638         size_t avail;                   /* available bytes */
 639         size_t xruns;                   /* count of overruns since last status (in bytes) */
 640         unsigned char reserved[16];     /* reserved for future use */
 641 };
 642
 643 #define SNDRV_RAWMIDI_IOCTL_PVERSION    _IOR('W', 0x00, int)
 644 #define SNDRV_RAWMIDI_IOCTL_INFO        _IOR('W', 0x01, struct snd_rawmidi_info)
 645 #define SNDRV_RAWMIDI_IOCTL_PARAMS      _IOWR('W', 0x10, struct snd_rawmidi_params)
 646 #define SNDRV_RAWMIDI_IOCTL_STATUS      _IOWR('W', 0x20, struct snd_rawmidi_status)
 647 #define SNDRV_RAWMIDI_IOCTL_DROP        _IOW('W', 0x30, int)
 648 #define SNDRV_RAWMIDI_IOCTL_DRAIN       _IOW('W', 0x31, int)
 649
 650 /*
 651  *  Timer section - /dev/snd/timer
 652  */
 653
 654 #define SNDRV_TIMER_VERSION             SNDRV_PROTOCOL_VERSION(2, 0, 6)
 655
 656 enum {
 657         SNDRV_TIMER_CLASS_NONE = -1,
 658         SNDRV_TIMER_CLASS_SLAVE = 0,
 659         SNDRV_TIMER_CLASS_GLOBAL,
 660         SNDRV_TIMER_CLASS_CARD,
 661         SNDRV_TIMER_CLASS_PCM,
 662         SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM,
 663 };
 664
 665 /* slave timer classes */
 666 enum {
 667         SNDRV_TIMER_SCLASS_NONE = 0,
 668         SNDRV_TIMER_SCLASS_APPLICATION,
 669         SNDRV_TIMER_SCLASS_SEQUENCER,           /* alias */
 670         SNDRV_TIMER_SCLASS_OSS_SEQUENCER,       /* alias */
 671         SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER,
 672 };
 673
 674 /* global timers (device member) */
 675 #define SNDRV_TIMER_GLOBAL_SYSTEM       0
 676 #define SNDRV_TIMER_GLOBAL_RTC          1       /* unused */
 677 #define SNDRV_TIMER_GLOBAL_HPET         2
 678 #define SNDRV_TIMER_GLOBAL_HRTIMER      3
 679
 680 /* info flags */
 681 #define SNDRV_TIMER_FLG_SLAVE           (1<<0)  /* cannot be controlled */
 682
 683 struct snd_timer_id {
 684         int dev_class;
 685         int dev_sclass;
 686         int card;
 687         int device;
 688         int subdevice;
 689 };
 690
 691 struct snd_timer_ginfo {
 692         struct snd_timer_id tid;        /* requested timer ID */
 693         unsigned int flags;             /* timer flags - SNDRV_TIMER_FLG_* */
 694         int card;                       /* card number */
 695         unsigned char id[64];           /* timer identification */
 696         unsigned char name[80];         /* timer name */
 697         unsigned long reserved0;        /* reserved for future use */
 698         unsigned long resolution;       /* average period resolution in ns */
 699         unsigned long resolution_min;   /* minimal period resolution in ns */
 700         unsigned long resolution_max;   /* maximal period resolution in ns */
 701         unsigned int clients;           /* active timer clients */
 702         unsigned char reserved[32];
 703 };
 704
 705 struct snd_timer_gparams {
 706         struct snd_timer_id tid;        /* requested timer ID */
 707         unsigned long period_num;       /* requested precise period duration (in seconds) - numerator */
 708         unsigned long period_den;       /* requested precise period duration (in seconds) - denominator */
 709         unsigned char reserved[32];
 710 };
 711
 712 struct snd_timer_gstatus {
 713         struct snd_timer_id tid;        /* requested timer ID */
 714         unsigned long resolution;       /* current period resolution in ns */
 715         unsigned long resolution_num;   /* precise current period resolution (in seconds) - numerator */
 716         unsigned long resolution_den;   /* precise current period resolution (in seconds) - denominator */
 717         unsigned char reserved[32];
 718 };
 719
 720 struct snd_timer_select {
 721         struct snd_timer_id id; /* bind to timer ID */
 722         unsigned char reserved[32];     /* reserved */
 723 };
 724
 725 struct snd_timer_info {
 726         unsigned int flags;             /* timer flags - SNDRV_TIMER_FLG_* */
 727         int card;                       /* card number */
 728         unsigned char id[64];           /* timer identificator */
 729         unsigned char name[80];         /* timer name */
 730         unsigned long reserved0;        /* reserved for future use */
 731         unsigned long resolution;       /* average period resolution in ns */
 732         unsigned char reserved[64];     /* reserved */
 733 };
 734
 735 #define SNDRV_TIMER_PSFLG_AUTO          (1<<0)  /* auto start, otherwise one-shot */
 736 #define SNDRV_TIMER_PSFLG_EXCLUSIVE     (1<<1)  /* exclusive use, precise start/stop/pause/continue */
 737 #define SNDRV_TIMER_PSFLG_EARLY_EVENT   (1<<2)  /* write early event to the poll queue */
 738
 739 struct snd_timer_params {
 740         unsigned int flags;             /* flags - SNDRV_MIXER_PSFLG_* */
 741         unsigned int ticks;             /* requested resolution in ticks */
 742         unsigned int queue_size;        /* total size of queue (32-1024) */
 743         unsigned int reserved0;         /* reserved, was: failure locations */
 744         unsigned int filter;            /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */
 745         unsigned char reserved[60];     /* reserved */
 746 };
 747
 748 struct snd_timer_status {
 749         struct timespec tstamp;         /* Timestamp - last update */
 750         unsigned int resolution;        /* current period resolution in ns */
 751         unsigned int lost;              /* counter of master tick lost */
 752         unsigned int overrun;           /* count of read queue overruns */
 753         unsigned int queue;             /* used queue size */
 754         unsigned char reserved[64];     /* reserved */
 755 };
 756
 757 #define SNDRV_TIMER_IOCTL_PVERSION      _IOR('T', 0x00, int)
 758 #define SNDRV_TIMER_IOCTL_NEXT_DEVICE   _IOWR('T', 0x01, struct snd_timer_id)
 759 #define SNDRV_TIMER_IOCTL_TREAD         _IOW('T', 0x02, int)
 760 #define SNDRV_TIMER_IOCTL_GINFO         _IOWR('T', 0x03, struct snd_timer_ginfo)
 761 #define SNDRV_TIMER_IOCTL_GPARAMS       _IOW('T', 0x04, struct snd_timer_gparams)
 762 #define SNDRV_TIMER_IOCTL_GSTATUS       _IOWR('T', 0x05, struct snd_timer_gstatus)
 763 #define SNDRV_TIMER_IOCTL_SELECT        _IOW('T', 0x10, struct snd_timer_select)
 764 #define SNDRV_TIMER_IOCTL_INFO          _IOR('T', 0x11, struct snd_timer_info)
 765 #define SNDRV_TIMER_IOCTL_PARAMS        _IOW('T', 0x12, struct snd_timer_params)
 766 #define SNDRV_TIMER_IOCTL_STATUS        _IOR('T', 0x14, struct snd_timer_status)
 767 /* The following four ioctls are changed since 1.0.9 due to confliction */
 768 #define SNDRV_TIMER_IOCTL_START         _IO('T', 0xa0)
 769 #define SNDRV_TIMER_IOCTL_STOP          _IO('T', 0xa1)
 770 #define SNDRV_TIMER_IOCTL_CONTINUE      _IO('T', 0xa2)
 771 #define SNDRV_TIMER_IOCTL_PAUSE         _IO('T', 0xa3)
 772
 773 struct snd_timer_read {
 774         unsigned int resolution;
 775         unsigned int ticks;
 776 };
 777
 778 enum {
 779         SNDRV_TIMER_EVENT_RESOLUTION = 0,       /* val = resolution in ns */
 780         SNDRV_TIMER_EVENT_TICK,                 /* val = ticks */
 781         SNDRV_TIMER_EVENT_START,                /* val = resolution in ns */
 782         SNDRV_TIMER_EVENT_STOP,                 /* val = 0 */
 783         SNDRV_TIMER_EVENT_CONTINUE,             /* val = resolution in ns */
 784         SNDRV_TIMER_EVENT_PAUSE,                /* val = 0 */
 785         SNDRV_TIMER_EVENT_EARLY,                /* val = 0, early event */
 786         SNDRV_TIMER_EVENT_SUSPEND,              /* val = 0 */
 787         SNDRV_TIMER_EVENT_RESUME,               /* val = resolution in ns */
 788         /* master timer events for slave timer instances */
 789         SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10,
 790         SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10,
 791         SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10,
 792         SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10,
 793         SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10,
 794         SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10,
 795 };
 796
 797 struct snd_timer_tread {
 798         int event;
 799         struct timespec tstamp;
 800         unsigned int val;
 801 };
 802
 803 /****************************************************************************
 804  *                                                                          *
 805  *        Section for driver control interface - /dev/snd/control?          *
 806  *                                                                          *
 807  ****************************************************************************/
 808
 809 #define SNDRV_CTL_VERSION               SNDRV_PROTOCOL_VERSION(2, 0, 7)
 810
 811 struct snd_ctl_card_info {
 812         int card;                       /* card number */
 813         int pad;                        /* reserved for future (was type) */
 814         unsigned char id[16];           /* ID of card (user selectable) */
 815         unsigned char driver[16];       /* Driver name */
 816         unsigned char name[32];         /* Short name of soundcard */
 817         unsigned char longname[80];     /* name + info text about soundcard */
 818         unsigned char reserved_[16];    /* reserved for future (was ID of mixer) */
 819         unsigned char mixername[80];    /* visual mixer identification */
 820         unsigned char components[128];  /* card components / fine identification, delimited with one space (AC97 etc..) */
 821 };
 822
 823 typedef int __bitwise snd_ctl_elem_type_t;
 824 #define SNDRV_CTL_ELEM_TYPE_NONE        ((__force snd_ctl_elem_type_t) 0) /* invalid */
 825 #define SNDRV_CTL_ELEM_TYPE_BOOLEAN     ((__force snd_ctl_elem_type_t) 1) /* boolean type */
 826 #define SNDRV_CTL_ELEM_TYPE_INTEGER     ((__force snd_ctl_elem_type_t) 2) /* integer type */
 827 #define SNDRV_CTL_ELEM_TYPE_ENUMERATED  ((__force snd_ctl_elem_type_t) 3) /* enumerated type */
 828 #define SNDRV_CTL_ELEM_TYPE_BYTES       ((__force snd_ctl_elem_type_t) 4) /* byte array */
 829 #define SNDRV_CTL_ELEM_TYPE_IEC958      ((__force snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */
 830 #define SNDRV_CTL_ELEM_TYPE_INTEGER64   ((__force snd_ctl_elem_type_t) 6) /* 64-bit integer type */
 831 #define SNDRV_CTL_ELEM_TYPE_LAST        SNDRV_CTL_ELEM_TYPE_INTEGER64
 832
 833 typedef int __bitwise snd_ctl_elem_iface_t;
 834 #define SNDRV_CTL_ELEM_IFACE_CARD       ((__force snd_ctl_elem_iface_t) 0) /* global control */
 835 #define SNDRV_CTL_ELEM_IFACE_HWDEP      ((__force snd_ctl_elem_iface_t) 1) /* hardware dependent device */
 836 #define SNDRV_CTL_ELEM_IFACE_MIXER      ((__force snd_ctl_elem_iface_t) 2) /* virtual mixer device */
 837 #define SNDRV_CTL_ELEM_IFACE_PCM        ((__force snd_ctl_elem_iface_t) 3) /* PCM device */
 838 #define SNDRV_CTL_ELEM_IFACE_RAWMIDI    ((__force snd_ctl_elem_iface_t) 4) /* RawMidi device */
 839 #define SNDRV_CTL_ELEM_IFACE_TIMER      ((__force snd_ctl_elem_iface_t) 5) /* timer device */
 840 #define SNDRV_CTL_ELEM_IFACE_SEQUENCER  ((__force snd_ctl_elem_iface_t) 6) /* sequencer client */
 841 #define SNDRV_CTL_ELEM_IFACE_LAST       SNDRV_CTL_ELEM_IFACE_SEQUENCER
 842
 843 #define SNDRV_CTL_ELEM_ACCESS_READ              (1<<0)
 844 #define SNDRV_CTL_ELEM_ACCESS_WRITE             (1<<1)
 845 #define SNDRV_CTL_ELEM_ACCESS_READWRITE         (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE)
 846 #define SNDRV_CTL_ELEM_ACCESS_VOLATILE          (1<<2)  /* control value may be changed without a notification */
 847 #define SNDRV_CTL_ELEM_ACCESS_TIMESTAMP         (1<<3)  /* when was control changed */
 848 #define SNDRV_CTL_ELEM_ACCESS_TLV_READ          (1<<4)  /* TLV read is possible */
 849 #define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE         (1<<5)  /* TLV write is possible */
 850 #define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE     (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE)
 851 #define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND       (1<<6)  /* TLV command is possible */
 852 #define SNDRV_CTL_ELEM_ACCESS_INACTIVE          (1<<8)  /* control does actually nothing, but may be updated */
 853 #define SNDRV_CTL_ELEM_ACCESS_LOCK              (1<<9)  /* write lock */
 854 #define SNDRV_CTL_ELEM_ACCESS_OWNER             (1<<10) /* write lock owner */
 855 #define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK      (1<<28) /* kernel use a TLV callback */
 856 #define SNDRV_CTL_ELEM_ACCESS_USER              (1<<29) /* user space element */
 857 /* bits 30 and 31 are obsoleted (for indirect access) */
 858
 859 /* for further details see the ACPI and PCI power management specification */
 860 #define SNDRV_CTL_POWER_D0              0x0000  /* full On */
 861 #define SNDRV_CTL_POWER_D1              0x0100  /* partial On */
 862 #define SNDRV_CTL_POWER_D2              0x0200  /* partial On */
 863 #define SNDRV_CTL_POWER_D3              0x0300  /* Off */
 864 #define SNDRV_CTL_POWER_D3hot           (SNDRV_CTL_POWER_D3|0x0000)     /* Off, with power */
 865 #define SNDRV_CTL_POWER_D3cold          (SNDRV_CTL_POWER_D3|0x0001)     /* Off, without power */
 866
 867 #define SNDRV_CTL_ELEM_ID_NAME_MAXLEN   44
 868
 869 struct snd_ctl_elem_id {
 870         unsigned int numid;             /* numeric identifier, zero = invalid */
 871         snd_ctl_elem_iface_t iface;     /* interface identifier */
 872         unsigned int device;            /* device/client number */
 873         unsigned int subdevice;         /* subdevice (substream) number */
 874         unsigned char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];              /* ASCII name of item */
 875         unsigned int index;             /* index of item */
 876 };
 877
 878 struct snd_ctl_elem_list {
 879         unsigned int offset;            /* W: first element ID to get */
 880         unsigned int space;             /* W: count of element IDs to get */
 881         unsigned int used;              /* R: count of element IDs set */
 882         unsigned int count;             /* R: count of all elements */
 883         struct snd_ctl_elem_id __user *pids; /* R: IDs */
 884         unsigned char reserved[50];
 885 };
 886
 887 struct snd_ctl_elem_info {
 888         struct snd_ctl_elem_id id;      /* W: element ID */
 889         snd_ctl_elem_type_t type;       /* R: value type - SNDRV_CTL_ELEM_TYPE_* */
 890         unsigned int access;            /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */
 891         unsigned int count;             /* count of values */
 892         __kernel_pid_t owner;           /* owner's PID of this control */
 893         union {
 894                 struct {
 895                         long min;               /* R: minimum value */
 896                         long max;               /* R: maximum value */
 897                         long step;              /* R: step (0 variable) */
 898                 } integer;
 899                 struct {
 900                         long long min;          /* R: minimum value */
 901                         long long max;          /* R: maximum value */
 902                         long long step;         /* R: step (0 variable) */
 903                 } integer64;
 904                 struct {
 905                         unsigned int items;     /* R: number of items */
 906                         unsigned int item;      /* W: item number */
 907                         char name[64];          /* R: value name */
 908                         __u64 names_ptr;        /* W: names list (ELEM_ADD only) */
 909                         unsigned int names_length;
 910                 } enumerated;
 911                 unsigned char reserved[128];
 912         } value;
 913         union {
 914                 unsigned short d[4];            /* dimensions */
 915                 unsigned short *d_ptr;          /* indirect - obsoleted */
 916         } dimen;
 917         unsigned char reserved[64-4*sizeof(unsigned short)];
 918 };
 919
 920 struct snd_ctl_elem_value {
 921         struct snd_ctl_elem_id id;      /* W: element ID */
 922         unsigned int indirect: 1;       /* W: indirect access - obsoleted */
 923         union {
 924                 union {
 925                         long value[128];
 926                         long *value_ptr;        /* obsoleted */
 927                 } integer;
 928                 union {
 929                         long long value[64];
 930                         long long *value_ptr;   /* obsoleted */
 931                 } integer64;
 932                 union {
 933                         unsigned int item[128];
 934                         unsigned int *item_ptr; /* obsoleted */
 935                 } enumerated;
 936                 union {
 937                         unsigned char data[512];
 938                         unsigned char *data_ptr;        /* obsoleted */
 939                 } bytes;
 940                 struct snd_aes_iec958 iec958;
 941         } value;                /* RO */
 942         struct timespec tstamp;
 943         unsigned char reserved[128-sizeof(struct timespec)];
 944 };
 945
 946 struct snd_ctl_tlv {
 947         unsigned int numid;     /* control element numeric identification */
 948         unsigned int length;    /* in bytes aligned to 4 */
 949         unsigned int tlv[0];    /* first TLV */
 950 };
 951
 952 #define SNDRV_CTL_IOCTL_PVERSION        _IOR('U', 0x00, int)
 953 #define SNDRV_CTL_IOCTL_CARD_INFO       _IOR('U', 0x01, struct snd_ctl_card_info)
 954 #define SNDRV_CTL_IOCTL_ELEM_LIST       _IOWR('U', 0x10, struct snd_ctl_elem_list)
 955 #define SNDRV_CTL_IOCTL_ELEM_INFO       _IOWR('U', 0x11, struct snd_ctl_elem_info)
 956 #define SNDRV_CTL_IOCTL_ELEM_READ       _IOWR('U', 0x12, struct snd_ctl_elem_value)
 957 #define SNDRV_CTL_IOCTL_ELEM_WRITE      _IOWR('U', 0x13, struct snd_ctl_elem_value)
 958 #define SNDRV_CTL_IOCTL_ELEM_LOCK       _IOW('U', 0x14, struct snd_ctl_elem_id)
 959 #define SNDRV_CTL_IOCTL_ELEM_UNLOCK     _IOW('U', 0x15, struct snd_ctl_elem_id)
 960 #define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int)
 961 #define SNDRV_CTL_IOCTL_ELEM_ADD        _IOWR('U', 0x17, struct snd_ctl_elem_info)
 962 #define SNDRV_CTL_IOCTL_ELEM_REPLACE    _IOWR('U', 0x18, struct snd_ctl_elem_info)
 963 #define SNDRV_CTL_IOCTL_ELEM_REMOVE     _IOWR('U', 0x19, struct snd_ctl_elem_id)
 964 #define SNDRV_CTL_IOCTL_TLV_READ        _IOWR('U', 0x1a, struct snd_ctl_tlv)
 965 #define SNDRV_CTL_IOCTL_TLV_WRITE       _IOWR('U', 0x1b, struct snd_ctl_tlv)
 966 #define SNDRV_CTL_IOCTL_TLV_COMMAND     _IOWR('U', 0x1c, struct snd_ctl_tlv)
 967 #define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int)
 968 #define SNDRV_CTL_IOCTL_HWDEP_INFO      _IOR('U', 0x21, struct snd_hwdep_info)
 969 #define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int)
 970 #define SNDRV_CTL_IOCTL_PCM_INFO        _IOWR('U', 0x31, struct snd_pcm_info)
 971 #define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int)
 972 #define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int)
 973 #define SNDRV_CTL_IOCTL_RAWMIDI_INFO    _IOWR('U', 0x41, struct snd_rawmidi_info)
 974 #define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int)
 975 #define SNDRV_CTL_IOCTL_POWER           _IOWR('U', 0xd0, int)
 976 #define SNDRV_CTL_IOCTL_POWER_STATE     _IOR('U', 0xd1, int)
 977
 978 /*
 979  *  Read interface.
 980  */
 981
 982 enum sndrv_ctl_event_type {
 983         SNDRV_CTL_EVENT_ELEM = 0,
 984         SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM,
 985 };
 986
 987 #define SNDRV_CTL_EVENT_MASK_VALUE      (1<<0)  /* element value was changed */
 988 #define SNDRV_CTL_EVENT_MASK_INFO       (1<<1)  /* element info was changed */
 989 #define SNDRV_CTL_EVENT_MASK_ADD        (1<<2)  /* element was added */
 990 #define SNDRV_CTL_EVENT_MASK_TLV        (1<<3)  /* element TLV tree was changed */
 991 #define SNDRV_CTL_EVENT_MASK_REMOVE     (~0U)   /* element was removed */
 992
 993 struct snd_ctl_event {
 994         int type;       /* event type - SNDRV_CTL_EVENT_* */
 995         union {
 996                 struct {
 997                         unsigned int mask;
 998                         struct snd_ctl_elem_id id;
 999                 } elem;
1000                 unsigned char data8[60];
1001         } data;
1002 };
1003
1004 /*
1005  *  Control names
1006  */
1007
1008 #define SNDRV_CTL_NAME_NONE                             ""
1009 #define SNDRV_CTL_NAME_PLAYBACK                         "Playback "
1010 #define SNDRV_CTL_NAME_CAPTURE                          "Capture "
1011
1012 #define SNDRV_CTL_NAME_IEC958_NONE                      ""
1013 #define SNDRV_CTL_NAME_IEC958_SWITCH                    "Switch"
1014 #define SNDRV_CTL_NAME_IEC958_VOLUME                    "Volume"
1015 #define SNDRV_CTL_NAME_IEC958_DEFAULT                   "Default"
1016 #define SNDRV_CTL_NAME_IEC958_MASK                      "Mask"
1017 #define SNDRV_CTL_NAME_IEC958_CON_MASK                  "Con Mask"
1018 #define SNDRV_CTL_NAME_IEC958_PRO_MASK                  "Pro Mask"
1019 #define SNDRV_CTL_NAME_IEC958_PCM_STREAM                "PCM Stream"
1020 #define SNDRV_CTL_NAME_IEC958(expl,direction,what)      "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what
1021
1022 #endif /* _UAPI__SOUND_ASOUND_H */