include/uapi/sound/asound.h

   1 /*
   2  *  Advanced Linux Sound Architecture - ALSA - Driver
   3  *  Copyright (c) 1994-2003 by Jaroslav Kysela <perex@perex.cz>,
   4  *                             Abramo Bagnara <abramo@alsa-project.org>
   5  *
   6  *
   7  *   This program is free software; you can redistribute it and/or modify
   8  *   it under the terms of the GNU General Public License as published by
   9  *   the Free Software Foundation; either version 2 of the License, or
  10  *   (at your option) any later version.
  11  *
  12  *   This program is distributed in the hope that it will be useful,
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *   GNU General Public License for more details.
  16  *
  17  *   You should have received a copy of the GNU General Public License
  18  *   along with this program; if not, write to the Free Software
  19  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  20  *
  21  */
  22
  23 #ifndef _UAPI__SOUND_ASOUND_H
  24 #define _UAPI__SOUND_ASOUND_H
  25
  26 #include <linux/types.h>
  27
  28 #ifndef __KERNEL__
  29 #include <stdlib.h>
  30 #endif
  31
  32 /*
  33  *  protocol version
  34  */
  35
  36 #define SNDRV_PROTOCOL_VERSION(major, minor, subminor) (((major)<<16)|((minor)<<8)|(subminor))
  37 #define SNDRV_PROTOCOL_MAJOR(version) (((version)>>16)&0xffff)
  38 #define SNDRV_PROTOCOL_MINOR(version) (((version)>>8)&0xff)
  39 #define SNDRV_PROTOCOL_MICRO(version) ((version)&0xff)
  40 #define SNDRV_PROTOCOL_INCOMPATIBLE(kversion, uversion) \
  41         (SNDRV_PROTOCOL_MAJOR(kversion) != SNDRV_PROTOCOL_MAJOR(uversion) || \
  42          (SNDRV_PROTOCOL_MAJOR(kversion) == SNDRV_PROTOCOL_MAJOR(uversion) && \
  43            SNDRV_PROTOCOL_MINOR(kversion) != SNDRV_PROTOCOL_MINOR(uversion)))
  44
  45 /****************************************************************************
  46  *                                                                          *
  47  *        Digital audio interface                                           *
  48  *                                                                          *
  49  ****************************************************************************/
  50
  51 struct snd_aes_iec958 {
  52         unsigned char status[24];       /* AES/IEC958 channel status bits */
  53         unsigned char subcode[147];     /* AES/IEC958 subcode bits */
  54         unsigned char pad;              /* nothing */
  55         unsigned char dig_subframe[4];  /* AES/IEC958 subframe bits */
  56 };
  57
  58 /****************************************************************************
  59  *                                                                          *
  60  *        CEA-861 Audio InfoFrame. Used in HDMI and DisplayPort             *
  61  *                                                                          *
  62  ****************************************************************************/
  63
  64 struct snd_cea_861_aud_if {
  65         unsigned char db1_ct_cc; /* coding type and channel count */
  66         unsigned char db2_sf_ss; /* sample frequency and size */
  67         unsigned char db3; /* not used, all zeros */
  68         unsigned char db4_ca; /* channel allocation code */
  69         unsigned char db5_dminh_lsv; /* downmix inhibit & level-shit values */
  70 };
  71
  72 /****************************************************************************
  73  *                                                                          *
  74  *      Section for driver hardware dependent interface - /dev/snd/hw?      *
  75  *                                                                          *
  76  ****************************************************************************/
  77
  78 #define SNDRV_HWDEP_VERSION             SNDRV_PROTOCOL_VERSION(1, 0, 1)
  79
  80 enum {
  81         SNDRV_HWDEP_IFACE_OPL2 = 0,
  82         SNDRV_HWDEP_IFACE_OPL3,
  83         SNDRV_HWDEP_IFACE_OPL4,
  84         SNDRV_HWDEP_IFACE_SB16CSP,      /* Creative Signal Processor */
  85         SNDRV_HWDEP_IFACE_EMU10K1,      /* FX8010 processor in EMU10K1 chip */
  86         SNDRV_HWDEP_IFACE_YSS225,       /* Yamaha FX processor */
  87         SNDRV_HWDEP_IFACE_ICS2115,      /* Wavetable synth */
  88         SNDRV_HWDEP_IFACE_SSCAPE,       /* Ensoniq SoundScape ISA card (MC68EC000) */
  89         SNDRV_HWDEP_IFACE_VX,           /* Digigram VX cards */
  90         SNDRV_HWDEP_IFACE_MIXART,       /* Digigram miXart cards */
  91         SNDRV_HWDEP_IFACE_USX2Y,        /* Tascam US122, US224 & US428 usb */
  92         SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */
  93         SNDRV_HWDEP_IFACE_BLUETOOTH,    /* Bluetooth audio */
  94         SNDRV_HWDEP_IFACE_USX2Y_PCM,    /* Tascam US122, US224 & US428 rawusb pcm */
  95         SNDRV_HWDEP_IFACE_PCXHR,        /* Digigram PCXHR */
  96         SNDRV_HWDEP_IFACE_SB_RC,        /* SB Extigy/Audigy2NX remote control */
  97         SNDRV_HWDEP_IFACE_HDA,          /* HD-audio */
  98         SNDRV_HWDEP_IFACE_USB_STREAM,   /* direct access to usb stream */
  99         SNDRV_HWDEP_IFACE_FW_DICE,      /* TC DICE FireWire device */
 100         SNDRV_HWDEP_IFACE_FW_FIREWORKS, /* Echo Audio Fireworks based device */
 101         SNDRV_HWDEP_IFACE_FW_BEBOB,     /* BridgeCo BeBoB based device */
 102         SNDRV_HWDEP_IFACE_FW_OXFW,      /* Oxford OXFW970/971 based device */
 103         SNDRV_HWDEP_IFACE_FW_DIGI00X,   /* Digidesign Digi 002/003 family */
 104         SNDRV_HWDEP_IFACE_FW_TASCAM,    /* TASCAM FireWire series */
 105
 106         /* Don't forget to change the following: */
 107         SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_FW_TASCAM
 108 };
 109
 110 struct snd_hwdep_info {
 111         unsigned int device;            /* WR: device number */
 112         int card;                       /* R: card number */
 113         unsigned char id[64];           /* ID (user selectable) */
 114         unsigned char name[80];         /* hwdep name */
 115         int iface;                      /* hwdep interface */
 116         unsigned char reserved[64];     /* reserved for future */
 117 };
 118
 119 /* generic DSP loader */
 120 struct snd_hwdep_dsp_status {
 121         unsigned int version;           /* R: driver-specific version */
 122         unsigned char id[32];           /* R: driver-specific ID string */
 123         unsigned int num_dsps;          /* R: number of DSP images to transfer */
 124         unsigned int dsp_loaded;        /* R: bit flags indicating the loaded DSPs */
 125         unsigned int chip_ready;        /* R: 1 = initialization finished */
 126         unsigned char reserved[16];     /* reserved for future use */
 127 };
 128
 129 struct snd_hwdep_dsp_image {
 130         unsigned int index;             /* W: DSP index */
 131         unsigned char name[64];         /* W: ID (e.g. file name) */
 132         unsigned char __user *image;    /* W: binary image */
 133         size_t length;                  /* W: size of image in bytes */
 134         unsigned long driver_data;      /* W: driver-specific data */
 135 };
 136
 137 #define SNDRV_HWDEP_IOCTL_PVERSION      _IOR ('H', 0x00, int)
 138 #define SNDRV_HWDEP_IOCTL_INFO          _IOR ('H', 0x01, struct snd_hwdep_info)
 139 #define SNDRV_HWDEP_IOCTL_DSP_STATUS    _IOR('H', 0x02, struct snd_hwdep_dsp_status)
 140 #define SNDRV_HWDEP_IOCTL_DSP_LOAD      _IOW('H', 0x03, struct snd_hwdep_dsp_image)
 141
 142 /*****************************************************************************
 143  *                                                                           *
 144  *             Digital Audio (PCM) interface - /dev/snd/pcm??                *
 145  *                                                                           *
 146  *****************************************************************************/
 147
 148 #define SNDRV_PCM_VERSION               SNDRV_PROTOCOL_VERSION(2, 0, 13)
 149
 150 typedef unsigned long snd_pcm_uframes_t;
 151 typedef signed long snd_pcm_sframes_t;
 152
 153 enum {
 154         SNDRV_PCM_CLASS_GENERIC = 0,    /* standard mono or stereo device */
 155         SNDRV_PCM_CLASS_MULTI,          /* multichannel device */
 156         SNDRV_PCM_CLASS_MODEM,          /* software modem class */
 157         SNDRV_PCM_CLASS_DIGITIZER,      /* digitizer class */
 158         /* Don't forget to change the following: */
 159         SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER,
 160 };
 161
 162 enum {
 163         SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, /* mono or stereo subdevices are mixed together */
 164         SNDRV_PCM_SUBCLASS_MULTI_MIX,   /* multichannel subdevices are mixed together */
 165         /* Don't forget to change the following: */
 166         SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX,
 167 };
 168
 169 enum {
 170         SNDRV_PCM_STREAM_PLAYBACK = 0,
 171         SNDRV_PCM_STREAM_CAPTURE,
 172         SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE,
 173 };
 174
 175 typedef int __bitwise snd_pcm_access_t;
 176 #define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED       ((__force snd_pcm_access_t) 0) /* interleaved mmap */
 177 #define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED    ((__force snd_pcm_access_t) 1) /* noninterleaved mmap */
 178 #define SNDRV_PCM_ACCESS_MMAP_COMPLEX           ((__force snd_pcm_access_t) 2) /* complex mmap */
 179 #define SNDRV_PCM_ACCESS_RW_INTERLEAVED         ((__force snd_pcm_access_t) 3) /* readi/writei */
 180 #define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED      ((__force snd_pcm_access_t) 4) /* readn/writen */
 181 #define SNDRV_PCM_ACCESS_LAST           SNDRV_PCM_ACCESS_RW_NONINTERLEAVED
 182
 183 typedef int __bitwise snd_pcm_format_t;
 184 #define SNDRV_PCM_FORMAT_S8     ((__force snd_pcm_format_t) 0)
 185 #define SNDRV_PCM_FORMAT_U8     ((__force snd_pcm_format_t) 1)
 186 #define SNDRV_PCM_FORMAT_S16_LE ((__force snd_pcm_format_t) 2)
 187 #define SNDRV_PCM_FORMAT_S16_BE ((__force snd_pcm_format_t) 3)
 188 #define SNDRV_PCM_FORMAT_U16_LE ((__force snd_pcm_format_t) 4)
 189 #define SNDRV_PCM_FORMAT_U16_BE ((__force snd_pcm_format_t) 5)
 190 #define SNDRV_PCM_FORMAT_S24_LE ((__force snd_pcm_format_t) 6) /* low three bytes */
 191 #define SNDRV_PCM_FORMAT_S24_BE ((__force snd_pcm_format_t) 7) /* low three bytes */
 192 #define SNDRV_PCM_FORMAT_U24_LE ((__force snd_pcm_format_t) 8) /* low three bytes */
 193 #define SNDRV_PCM_FORMAT_U24_BE ((__force snd_pcm_format_t) 9) /* low three bytes */
 194 #define SNDRV_PCM_FORMAT_S32_LE ((__force snd_pcm_format_t) 10)
 195 #define SNDRV_PCM_FORMAT_S32_BE ((__force snd_pcm_format_t) 11)
 196 #define SNDRV_PCM_FORMAT_U32_LE ((__force snd_pcm_format_t) 12)
 197 #define SNDRV_PCM_FORMAT_U32_BE ((__force snd_pcm_format_t) 13)
 198 #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 */
 199 #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 */
 200 #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 */
 201 #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 */
 202 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((__force snd_pcm_format_t) 18) /* IEC-958 subframe, Little Endian */
 203 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((__force snd_pcm_format_t) 19) /* IEC-958 subframe, Big Endian */
 204 #define SNDRV_PCM_FORMAT_MU_LAW         ((__force snd_pcm_format_t) 20)
 205 #define SNDRV_PCM_FORMAT_A_LAW          ((__force snd_pcm_format_t) 21)
 206 #define SNDRV_PCM_FORMAT_IMA_ADPCM      ((__force snd_pcm_format_t) 22)
 207 #define SNDRV_PCM_FORMAT_MPEG           ((__force snd_pcm_format_t) 23)
 208 #define SNDRV_PCM_FORMAT_GSM            ((__force snd_pcm_format_t) 24)
 209 #define SNDRV_PCM_FORMAT_SPECIAL        ((__force snd_pcm_format_t) 31)
 210 #define SNDRV_PCM_FORMAT_S24_3LE        ((__force snd_pcm_format_t) 32) /* in three bytes */
 211 #define SNDRV_PCM_FORMAT_S24_3BE        ((__force snd_pcm_format_t) 33) /* in three bytes */
 212 #define SNDRV_PCM_FORMAT_U24_3LE        ((__force snd_pcm_format_t) 34) /* in three bytes */
 213 #define SNDRV_PCM_FORMAT_U24_3BE        ((__force snd_pcm_format_t) 35) /* in three bytes */
 214 #define SNDRV_PCM_FORMAT_S20_3LE        ((__force snd_pcm_format_t) 36) /* in three bytes */
 215 #define SNDRV_PCM_FORMAT_S20_3BE        ((__force snd_pcm_format_t) 37) /* in three bytes */
 216 #define SNDRV_PCM_FORMAT_U20_3LE        ((__force snd_pcm_format_t) 38) /* in three bytes */
 217 #define SNDRV_PCM_FORMAT_U20_3BE        ((__force snd_pcm_format_t) 39) /* in three bytes */
 218 #define SNDRV_PCM_FORMAT_S18_3LE        ((__force snd_pcm_format_t) 40) /* in three bytes */
 219 #define SNDRV_PCM_FORMAT_S18_3BE        ((__force snd_pcm_format_t) 41) /* in three bytes */
 220 #define SNDRV_PCM_FORMAT_U18_3LE        ((__force snd_pcm_format_t) 42) /* in three bytes */
 221 #define SNDRV_PCM_FORMAT_U18_3BE        ((__force snd_pcm_format_t) 43) /* in three bytes */
 222 #define SNDRV_PCM_FORMAT_G723_24        ((__force snd_pcm_format_t) 44) /* 8 samples in 3 bytes */
 223 #define SNDRV_PCM_FORMAT_G723_24_1B     ((__force snd_pcm_format_t) 45) /* 1 sample in 1 byte */
 224 #define SNDRV_PCM_FORMAT_G723_40        ((__force snd_pcm_format_t) 46) /* 8 Samples in 5 bytes */
 225 #define SNDRV_PCM_FORMAT_G723_40_1B     ((__force snd_pcm_format_t) 47) /* 1 sample in 1 byte */
 226 #define SNDRV_PCM_FORMAT_DSD_U8         ((__force snd_pcm_format_t) 48) /* DSD, 1-byte samples DSD (x8) */
 227 #define SNDRV_PCM_FORMAT_DSD_U16_LE     ((__force snd_pcm_format_t) 49) /* DSD, 2-byte samples DSD (x16), little endian */
 228 #define SNDRV_PCM_FORMAT_DSD_U32_LE     ((__force snd_pcm_format_t) 50) /* DSD, 4-byte samples DSD (x32), little endian */
 229 #define SNDRV_PCM_FORMAT_DSD_U16_BE     ((__force snd_pcm_format_t) 51) /* DSD, 2-byte samples DSD (x16), big endian */
 230 #define SNDRV_PCM_FORMAT_DSD_U32_BE     ((__force snd_pcm_format_t) 52) /* DSD, 4-byte samples DSD (x32), big endian */
 231 #define SNDRV_PCM_FORMAT_LAST           SNDRV_PCM_FORMAT_DSD_U32_BE
 232
 233 #ifdef SNDRV_LITTLE_ENDIAN
 234 #define SNDRV_PCM_FORMAT_S16            SNDRV_PCM_FORMAT_S16_LE
 235 #define SNDRV_PCM_FORMAT_U16            SNDRV_PCM_FORMAT_U16_LE
 236 #define SNDRV_PCM_FORMAT_S24            SNDRV_PCM_FORMAT_S24_LE
 237 #define SNDRV_PCM_FORMAT_U24            SNDRV_PCM_FORMAT_U24_LE
 238 #define SNDRV_PCM_FORMAT_S32            SNDRV_PCM_FORMAT_S32_LE
 239 #define SNDRV_PCM_FORMAT_U32            SNDRV_PCM_FORMAT_U32_LE
 240 #define SNDRV_PCM_FORMAT_FLOAT          SNDRV_PCM_FORMAT_FLOAT_LE
 241 #define SNDRV_PCM_FORMAT_FLOAT64        SNDRV_PCM_FORMAT_FLOAT64_LE
 242 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE
 243 #endif
 244 #ifdef SNDRV_BIG_ENDIAN
 245 #define SNDRV_PCM_FORMAT_S16            SNDRV_PCM_FORMAT_S16_BE
 246 #define SNDRV_PCM_FORMAT_U16            SNDRV_PCM_FORMAT_U16_BE
 247 #define SNDRV_PCM_FORMAT_S24            SNDRV_PCM_FORMAT_S24_BE
 248 #define SNDRV_PCM_FORMAT_U24            SNDRV_PCM_FORMAT_U24_BE
 249 #define SNDRV_PCM_FORMAT_S32            SNDRV_PCM_FORMAT_S32_BE
 250 #define SNDRV_PCM_FORMAT_U32            SNDRV_PCM_FORMAT_U32_BE
 251 #define SNDRV_PCM_FORMAT_FLOAT          SNDRV_PCM_FORMAT_FLOAT_BE
 252 #define SNDRV_PCM_FORMAT_FLOAT64        SNDRV_PCM_FORMAT_FLOAT64_BE
 253 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE
 254 #endif
 255
 256 typedef int __bitwise snd_pcm_subformat_t;
 257 #define SNDRV_PCM_SUBFORMAT_STD         ((__force snd_pcm_subformat_t) 0)
 258 #define SNDRV_PCM_SUBFORMAT_LAST        SNDRV_PCM_SUBFORMAT_STD
 259
 260 #define SNDRV_PCM_INFO_MMAP             0x00000001      /* hardware supports mmap */
 261 #define SNDRV_PCM_INFO_MMAP_VALID       0x00000002      /* period data are valid during transfer */
 262 #define SNDRV_PCM_INFO_DOUBLE           0x00000004      /* Double buffering needed for PCM start/stop */
 263 #define SNDRV_PCM_INFO_BATCH            0x00000010      /* double buffering */
 264 #define SNDRV_PCM_INFO_INTERLEAVED      0x00000100      /* channels are interleaved */
 265 #define SNDRV_PCM_INFO_NONINTERLEAVED   0x00000200      /* channels are not interleaved */
 266 #define SNDRV_PCM_INFO_COMPLEX          0x00000400      /* complex frame organization (mmap only) */
 267 #define SNDRV_PCM_INFO_BLOCK_TRANSFER   0x00010000      /* hardware transfer block of samples */
 268 #define SNDRV_PCM_INFO_OVERRANGE        0x00020000      /* hardware supports ADC (capture) overrange detection */
 269 #define SNDRV_PCM_INFO_RESUME           0x00040000      /* hardware supports stream resume after suspend */
 270 #define SNDRV_PCM_INFO_PAUSE            0x00080000      /* pause ioctl is supported */
 271 #define SNDRV_PCM_INFO_HALF_DUPLEX      0x00100000      /* only half duplex */
 272 #define SNDRV_PCM_INFO_JOINT_DUPLEX     0x00200000      /* playback and capture stream are somewhat correlated */
 273 #define SNDRV_PCM_INFO_SYNC_START       0x00400000      /* pcm support some kind of sync go */
 274 #define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP 0x00800000      /* period wakeup can be disabled */
 275 #define SNDRV_PCM_INFO_HAS_WALL_CLOCK   0x01000000      /* (Deprecated)has audio wall clock for audio/system time sync */
 276 #define SNDRV_PCM_INFO_HAS_LINK_ATIME              0x01000000  /* report hardware link audio time, reset on startup */
 277 #define SNDRV_PCM_INFO_HAS_LINK_ABSOLUTE_ATIME     0x02000000  /* report absolute hardware link audio time, not reset on startup */
 278 #define SNDRV_PCM_INFO_HAS_LINK_ESTIMATED_ATIME    0x04000000  /* report estimated link audio time */
 279 #define SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME 0x08000000  /* report synchronized audio/system time */
 280
 281 #define SNDRV_PCM_INFO_DRAIN_TRIGGER    0x40000000              /* internal kernel flag - trigger in drain */
 282 #define SNDRV_PCM_INFO_FIFO_IN_FRAMES   0x80000000      /* internal kernel flag - FIFO size is in frames */
 283
 284
 285
 286 typedef int __bitwise snd_pcm_state_t;
 287 #define SNDRV_PCM_STATE_OPEN            ((__force snd_pcm_state_t) 0) /* stream is open */
 288 #define SNDRV_PCM_STATE_SETUP           ((__force snd_pcm_state_t) 1) /* stream has a setup */
 289 #define SNDRV_PCM_STATE_PREPARED        ((__force snd_pcm_state_t) 2) /* stream is ready to start */
 290 #define SNDRV_PCM_STATE_RUNNING         ((__force snd_pcm_state_t) 3) /* stream is running */
 291 #define SNDRV_PCM_STATE_XRUN            ((__force snd_pcm_state_t) 4) /* stream reached an xrun */
 292 #define SNDRV_PCM_STATE_DRAINING        ((__force snd_pcm_state_t) 5) /* stream is draining */
 293 #define SNDRV_PCM_STATE_PAUSED          ((__force snd_pcm_state_t) 6) /* stream is paused */
 294 #define SNDRV_PCM_STATE_SUSPENDED       ((__force snd_pcm_state_t) 7) /* hardware is suspended */
 295 #define SNDRV_PCM_STATE_DISCONNECTED    ((__force snd_pcm_state_t) 8) /* hardware is disconnected */
 296 #define SNDRV_PCM_STATE_LAST            SNDRV_PCM_STATE_DISCONNECTED
 297
 298 enum {
 299         SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000,
 300         SNDRV_PCM_MMAP_OFFSET_STATUS = 0x80000000,
 301         SNDRV_PCM_MMAP_OFFSET_CONTROL = 0x81000000,
 302 };
 303
 304 union snd_pcm_sync_id {
 305         unsigned char id[16];
 306         unsigned short id16[8];
 307         unsigned int id32[4];
 308 };
 309
 310 struct snd_pcm_info {
 311         unsigned int device;            /* RO/WR (control): device number */
 312         unsigned int subdevice;         /* RO/WR (control): subdevice number */
 313         int stream;                     /* RO/WR (control): stream direction */
 314         int card;                       /* R: card number */
 315         unsigned char id[64];           /* ID (user selectable) */
 316         unsigned char name[80];         /* name of this device */
 317         unsigned char subname[32];      /* subdevice name */
 318         int dev_class;                  /* SNDRV_PCM_CLASS_* */
 319         int dev_subclass;               /* SNDRV_PCM_SUBCLASS_* */
 320         unsigned int subdevices_count;
 321         unsigned int subdevices_avail;
 322         union snd_pcm_sync_id sync;     /* hardware synchronization ID */
 323         unsigned char reserved[64];     /* reserved for future... */
 324 };
 325
 326 typedef int snd_pcm_hw_param_t;
 327 #define SNDRV_PCM_HW_PARAM_ACCESS       0       /* Access type */
 328 #define SNDRV_PCM_HW_PARAM_FORMAT       1       /* Format */
 329 #define SNDRV_PCM_HW_PARAM_SUBFORMAT    2       /* Subformat */
 330 #define SNDRV_PCM_HW_PARAM_FIRST_MASK   SNDRV_PCM_HW_PARAM_ACCESS
 331 #define SNDRV_PCM_HW_PARAM_LAST_MASK    SNDRV_PCM_HW_PARAM_SUBFORMAT
 332
 333 #define SNDRV_PCM_HW_PARAM_SAMPLE_BITS  8       /* Bits per sample */
 334 #define SNDRV_PCM_HW_PARAM_FRAME_BITS   9       /* Bits per frame */
 335 #define SNDRV_PCM_HW_PARAM_CHANNELS     10      /* Channels */
 336 #define SNDRV_PCM_HW_PARAM_RATE         11      /* Approx rate */
 337 #define SNDRV_PCM_HW_PARAM_PERIOD_TIME  12      /* Approx distance between
 338                                                  * interrupts in us
 339                                                  */
 340 #define SNDRV_PCM_HW_PARAM_PERIOD_SIZE  13      /* Approx frames between
 341                                                  * interrupts
 342                                                  */
 343 #define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14      /* Approx bytes between
 344                                                  * interrupts
 345                                                  */
 346 #define SNDRV_PCM_HW_PARAM_PERIODS      15      /* Approx interrupts per
 347                                                  * buffer
 348                                                  */
 349 #define SNDRV_PCM_HW_PARAM_BUFFER_TIME  16      /* Approx duration of buffer
 350                                                  * in us
 351                                                  */
 352 #define SNDRV_PCM_HW_PARAM_BUFFER_SIZE  17      /* Size of buffer in frames */
 353 #define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18      /* Size of buffer in bytes */
 354 #define SNDRV_PCM_HW_PARAM_TICK_TIME    19      /* Approx tick duration in us */
 355 #define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL       SNDRV_PCM_HW_PARAM_SAMPLE_BITS
 356 #define SNDRV_PCM_HW_PARAM_LAST_INTERVAL        SNDRV_PCM_HW_PARAM_TICK_TIME
 357
 358 #define SNDRV_PCM_HW_PARAMS_NORESAMPLE  (1<<0)  /* avoid rate resampling */
 359 #define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER       (1<<1)  /* export buffer */
 360 #define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP    (1<<2)  /* disable period wakeups */
 361
 362 struct snd_interval {
 363         unsigned int min, max;
 364         unsigned int openmin:1,
 365                      openmax:1,
 366                      integer:1,
 367                      empty:1;
 368 };
 369
 370 #define SNDRV_MASK_MAX  256
 371
 372 struct snd_mask {
 373         __u32 bits[(SNDRV_MASK_MAX+31)/32];
 374 };
 375
 376 struct snd_pcm_hw_params {
 377         unsigned int flags;
 378         struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK -
 379                                SNDRV_PCM_HW_PARAM_FIRST_MASK + 1];
 380         struct snd_mask mres[5];        /* reserved masks */
 381         struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL -
 382                                         SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1];
 383         struct snd_interval ires[9];    /* reserved intervals */
 384         unsigned int rmask;             /* W: requested masks */
 385         unsigned int cmask;             /* R: changed masks */
 386         unsigned int info;              /* R: Info flags for returned setup */
 387         unsigned int msbits;            /* R: used most significant bits */
 388         unsigned int rate_num;          /* R: rate numerator */
 389         unsigned int rate_den;          /* R: rate denominator */
 390         snd_pcm_uframes_t fifo_size;    /* R: chip FIFO size in frames */
 391         unsigned char reserved[64];     /* reserved for future */
 392 };
 393
 394 enum {
 395         SNDRV_PCM_TSTAMP_NONE = 0,
 396         SNDRV_PCM_TSTAMP_ENABLE,
 397         SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE,
 398 };
 399
 400 struct snd_pcm_sw_params {
 401         int tstamp_mode;                        /* timestamp mode */
 402         unsigned int period_step;
 403         unsigned int sleep_min;                 /* min ticks to sleep */
 404         snd_pcm_uframes_t avail_min;            /* min avail frames for wakeup */
 405         snd_pcm_uframes_t xfer_align;           /* obsolete: xfer size need to be a multiple */
 406         snd_pcm_uframes_t start_threshold;      /* min hw_avail frames for automatic start */
 407         snd_pcm_uframes_t stop_threshold;       /* min avail frames for automatic stop */
 408         snd_pcm_uframes_t silence_threshold;    /* min distance from noise for silence filling */
 409         snd_pcm_uframes_t silence_size;         /* silence block size */
 410         snd_pcm_uframes_t boundary;             /* pointers wrap point */
 411         unsigned int proto;                     /* protocol version */
 412         unsigned int tstamp_type;               /* timestamp type (req. proto >= 2.0.12) */
 413         unsigned char reserved[56];             /* reserved for future */
 414 };
 415
 416 struct snd_pcm_channel_info {
 417         unsigned int channel;
 418         __kernel_off_t offset;          /* mmap offset */
 419         unsigned int first;             /* offset to first sample in bits */
 420         unsigned int step;              /* samples distance in bits */
 421 };
 422
 423 enum {
 424         /*
 425          *  first definition for backwards compatibility only,
 426          *  maps to wallclock/link time for HDAudio playback and DEFAULT/DMA time for everything else
 427          */
 428         SNDRV_PCM_AUDIO_TSTAMP_TYPE_COMPAT = 0,
 429
 430         /* timestamp definitions */
 431         SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT = 1,           /* DMA time, reported as per hw_ptr */
 432         SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK = 2,              /* link time reported by sample or wallclock counter, reset on startup */
 433         SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE = 3,     /* link time reported by sample or wallclock counter, not reset on startup */
 434         SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED = 4,    /* link time estimated indirectly */
 435         SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED = 5, /* link time synchronized with system time */
 436         SNDRV_PCM_AUDIO_TSTAMP_TYPE_LAST = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED
 437 };
 438
 439 struct snd_pcm_status {
 440         snd_pcm_state_t state;          /* stream state */
 441         struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */
 442         struct timespec tstamp;         /* reference timestamp */
 443         snd_pcm_uframes_t appl_ptr;     /* appl ptr */
 444         snd_pcm_uframes_t hw_ptr;       /* hw ptr */
 445         snd_pcm_sframes_t delay;        /* current delay in frames */
 446         snd_pcm_uframes_t avail;        /* number of frames available */
 447         snd_pcm_uframes_t avail_max;    /* max frames available on hw since last status */
 448         snd_pcm_uframes_t overrange;    /* count of ADC (capture) overrange detections from last status */
 449         snd_pcm_state_t suspended_state; /* suspended stream state */
 450         __u32 audio_tstamp_data;         /* needed for 64-bit alignment, used for configs/report to/from userspace */
 451         struct timespec audio_tstamp;   /* sample counter, wall clock, PHC or on-demand sync'ed */
 452         struct timespec driver_tstamp;  /* useful in case reference system tstamp is reported with delay */
 453         __u32 audio_tstamp_accuracy;    /* in ns units, only valid if indicated in audio_tstamp_data */
 454         unsigned char reserved[52-2*sizeof(struct timespec)]; /* must be filled with zero */
 455 };
 456
 457 struct snd_pcm_mmap_status {
 458         snd_pcm_state_t state;          /* RO: state - SNDRV_PCM_STATE_XXXX */
 459         int pad1;                       /* Needed for 64 bit alignment */
 460         snd_pcm_uframes_t hw_ptr;       /* RO: hw ptr (0...boundary-1) */
 461         struct timespec tstamp;         /* Timestamp */
 462         snd_pcm_state_t suspended_state; /* RO: suspended stream state */
 463         struct timespec audio_tstamp;   /* from sample counter or wall clock */
 464 };
 465
 466 struct snd_pcm_mmap_control {
 467         snd_pcm_uframes_t appl_ptr;     /* RW: appl ptr (0...boundary-1) */
 468         snd_pcm_uframes_t avail_min;    /* RW: min available frames for wakeup */
 469 };
 470
 471 #define SNDRV_PCM_SYNC_PTR_HWSYNC       (1<<0)  /* execute hwsync */
 472 #define SNDRV_PCM_SYNC_PTR_APPL         (1<<1)  /* get appl_ptr from driver (r/w op) */
 473 #define SNDRV_PCM_SYNC_PTR_AVAIL_MIN    (1<<2)  /* get avail_min from driver */
 474
 475 struct snd_pcm_sync_ptr {
 476         unsigned int flags;
 477         union {
 478                 struct snd_pcm_mmap_status status;
 479                 unsigned char reserved[64];
 480         } s;
 481         union {
 482                 struct snd_pcm_mmap_control control;
 483                 unsigned char reserved[64];
 484         } c;
 485 };
 486
 487 struct snd_xferi {
 488         snd_pcm_sframes_t result;
 489         void __user *buf;
 490         snd_pcm_uframes_t frames;
 491 };
 492
 493 struct snd_xfern {
 494         snd_pcm_sframes_t result;
 495         void __user * __user *bufs;
 496         snd_pcm_uframes_t frames;
 497 };
 498
 499 enum {
 500         SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0, /* gettimeofday equivalent */
 501         SNDRV_PCM_TSTAMP_TYPE_MONOTONIC,        /* posix_clock_monotonic equivalent */
 502         SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW,    /* monotonic_raw (no NTP) */
 503         SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW,
 504 };
 505
 506 /* channel positions */
 507 enum {
 508         SNDRV_CHMAP_UNKNOWN = 0,
 509         SNDRV_CHMAP_NA,         /* N/A, silent */
 510         SNDRV_CHMAP_MONO,       /* mono stream */
 511         /* this follows the alsa-lib mixer channel value + 3 */
 512         SNDRV_CHMAP_FL,         /* front left */
 513         SNDRV_CHMAP_FR,         /* front right */
 514         SNDRV_CHMAP_RL,         /* rear left */
 515         SNDRV_CHMAP_RR,         /* rear right */
 516         SNDRV_CHMAP_FC,         /* front center */
 517         SNDRV_CHMAP_LFE,        /* LFE */
 518         SNDRV_CHMAP_SL,         /* side left */
 519         SNDRV_CHMAP_SR,         /* side right */
 520         SNDRV_CHMAP_RC,         /* rear center */
 521         /* new definitions */
 522         SNDRV_CHMAP_FLC,        /* front left center */
 523         SNDRV_CHMAP_FRC,        /* front right center */
 524         SNDRV_CHMAP_RLC,        /* rear left center */
 525         SNDRV_CHMAP_RRC,        /* rear right center */
 526         SNDRV_CHMAP_FLW,        /* front left wide */
 527         SNDRV_CHMAP_FRW,        /* front right wide */
 528         SNDRV_CHMAP_FLH,        /* front left high */
 529         SNDRV_CHMAP_FCH,        /* front center high */
 530         SNDRV_CHMAP_FRH,        /* front right high */
 531         SNDRV_CHMAP_TC,         /* top center */
 532         SNDRV_CHMAP_TFL,        /* top front left */
 533         SNDRV_CHMAP_TFR,        /* top front right */
 534         SNDRV_CHMAP_TFC,        /* top front center */
 535         SNDRV_CHMAP_TRL,        /* top rear left */
 536         SNDRV_CHMAP_TRR,        /* top rear right */
 537         SNDRV_CHMAP_TRC,        /* top rear center */
 538         /* new definitions for UAC2 */
 539         SNDRV_CHMAP_TFLC,       /* top front left center */
 540         SNDRV_CHMAP_TFRC,       /* top front right center */
 541         SNDRV_CHMAP_TSL,        /* top side left */
 542         SNDRV_CHMAP_TSR,        /* top side right */
 543         SNDRV_CHMAP_LLFE,       /* left LFE */
 544         SNDRV_CHMAP_RLFE,       /* right LFE */
 545         SNDRV_CHMAP_BC,         /* bottom center */
 546         SNDRV_CHMAP_BLC,        /* bottom left center */
 547         SNDRV_CHMAP_BRC,        /* bottom right center */
 548         SNDRV_CHMAP_LAST = SNDRV_CHMAP_BRC,
 549 };
 550
 551 #define SNDRV_CHMAP_POSITION_MASK       0xffff
 552 #define SNDRV_CHMAP_PHASE_INVERSE       (0x01 << 16)
 553 #define SNDRV_CHMAP_DRIVER_SPEC         (0x02 << 16)
 554
 555 #define SNDRV_PCM_IOCTL_PVERSION        _IOR('A', 0x00, int)
 556 #define SNDRV_PCM_IOCTL_INFO            _IOR('A', 0x01, struct snd_pcm_info)
 557 #define SNDRV_PCM_IOCTL_TSTAMP          _IOW('A', 0x02, int)
 558 #define SNDRV_PCM_IOCTL_TTSTAMP         _IOW('A', 0x03, int)
 559 #define SNDRV_PCM_IOCTL_HW_REFINE       _IOWR('A', 0x10, struct snd_pcm_hw_params)
 560 #define SNDRV_PCM_IOCTL_HW_PARAMS       _IOWR('A', 0x11, struct snd_pcm_hw_params)
 561 #define SNDRV_PCM_IOCTL_HW_FREE         _IO('A', 0x12)
 562 #define SNDRV_PCM_IOCTL_SW_PARAMS       _IOWR('A', 0x13, struct snd_pcm_sw_params)
 563 #define SNDRV_PCM_IOCTL_STATUS          _IOR('A', 0x20, struct snd_pcm_status)
 564 #define SNDRV_PCM_IOCTL_DELAY           _IOR('A', 0x21, snd_pcm_sframes_t)
 565 #define SNDRV_PCM_IOCTL_HWSYNC          _IO('A', 0x22)
 566 #define SNDRV_PCM_IOCTL_SYNC_PTR        _IOWR('A', 0x23, struct snd_pcm_sync_ptr)
 567 #define SNDRV_PCM_IOCTL_STATUS_EXT      _IOWR('A', 0x24, struct snd_pcm_status)
 568 #define SNDRV_PCM_IOCTL_CHANNEL_INFO    _IOR('A', 0x32, struct snd_pcm_channel_info)
 569 #define SNDRV_PCM_IOCTL_PREPARE         _IO('A', 0x40)
 570 #define SNDRV_PCM_IOCTL_RESET           _IO('A', 0x41)
 571 #define SNDRV_PCM_IOCTL_START           _IO('A', 0x42)
 572 #define SNDRV_PCM_IOCTL_DROP            _IO('A', 0x43)
 573 #define SNDRV_PCM_IOCTL_DRAIN           _IO('A', 0x44)
 574 #define SNDRV_PCM_IOCTL_PAUSE           _IOW('A', 0x45, int)
 575 #define SNDRV_PCM_IOCTL_REWIND          _IOW('A', 0x46, snd_pcm_uframes_t)
 576 #define SNDRV_PCM_IOCTL_RESUME          _IO('A', 0x47)
 577 #define SNDRV_PCM_IOCTL_XRUN            _IO('A', 0x48)
 578 #define SNDRV_PCM_IOCTL_FORWARD         _IOW('A', 0x49, snd_pcm_uframes_t)
 579 #define SNDRV_PCM_IOCTL_WRITEI_FRAMES   _IOW('A', 0x50, struct snd_xferi)
 580 #define SNDRV_PCM_IOCTL_READI_FRAMES    _IOR('A', 0x51, struct snd_xferi)
 581 #define SNDRV_PCM_IOCTL_WRITEN_FRAMES   _IOW('A', 0x52, struct snd_xfern)
 582 #define SNDRV_PCM_IOCTL_READN_FRAMES    _IOR('A', 0x53, struct snd_xfern)
 583 #define SNDRV_PCM_IOCTL_LINK            _IOW('A', 0x60, int)
 584 #define SNDRV_PCM_IOCTL_UNLINK          _IO('A', 0x61)
 585
 586 /*****************************************************************************
 587  *                                                                           *
 588  *                            MIDI v1.0 interface                            *
 589  *                                                                           *
 590  *****************************************************************************/
 591
 592 /*
 593  *  Raw MIDI section - /dev/snd/midi??
 594  */
 595
 596 #define SNDRV_RAWMIDI_VERSION           SNDRV_PROTOCOL_VERSION(2, 0, 0)
 597
 598 enum {
 599         SNDRV_RAWMIDI_STREAM_OUTPUT = 0,
 600         SNDRV_RAWMIDI_STREAM_INPUT,
 601         SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT,
 602 };
 603
 604 #define SNDRV_RAWMIDI_INFO_OUTPUT               0x00000001
 605 #define SNDRV_RAWMIDI_INFO_INPUT                0x00000002
 606 #define SNDRV_RAWMIDI_INFO_DUPLEX               0x00000004
 607
 608 struct snd_rawmidi_info {
 609         unsigned int device;            /* RO/WR (control): device number */
 610         unsigned int subdevice;         /* RO/WR (control): subdevice number */
 611         int stream;                     /* WR: stream */
 612         int card;                       /* R: card number */
 613         unsigned int flags;             /* SNDRV_RAWMIDI_INFO_XXXX */
 614         unsigned char id[64];           /* ID (user selectable) */
 615         unsigned char name[80];         /* name of device */
 616         unsigned char subname[32];      /* name of active or selected subdevice */
 617         unsigned int subdevices_count;
 618         unsigned int subdevices_avail;
 619         unsigned char reserved[64];     /* reserved for future use */
 620 };
 621
 622 struct snd_rawmidi_params {
 623         int stream;
 624         size_t buffer_size;             /* queue size in bytes */
 625         size_t avail_min;               /* minimum avail bytes for wakeup */
 626         unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */
 627         unsigned char reserved[16];     /* reserved for future use */
 628 };
 629
 630 struct snd_rawmidi_status {
 631         int stream;
 632         struct timespec tstamp;         /* Timestamp */
 633         size_t avail;                   /* available bytes */
 634         size_t xruns;                   /* count of overruns since last status (in bytes) */
 635         unsigned char reserved[16];     /* reserved for future use */
 636 };
 637
 638 #define SNDRV_RAWMIDI_IOCTL_PVERSION    _IOR('W', 0x00, int)
 639 #define SNDRV_RAWMIDI_IOCTL_INFO        _IOR('W', 0x01, struct snd_rawmidi_info)
 640 #define SNDRV_RAWMIDI_IOCTL_PARAMS      _IOWR('W', 0x10, struct snd_rawmidi_params)
 641 #define SNDRV_RAWMIDI_IOCTL_STATUS      _IOWR('W', 0x20, struct snd_rawmidi_status)
 642 #define SNDRV_RAWMIDI_IOCTL_DROP        _IOW('W', 0x30, int)
 643 #define SNDRV_RAWMIDI_IOCTL_DRAIN       _IOW('W', 0x31, int)
 644
 645 /*
 646  *  Timer section - /dev/snd/timer
 647  */
 648
 649 #define SNDRV_TIMER_VERSION             SNDRV_PROTOCOL_VERSION(2, 0, 6)
 650
 651 enum {
 652         SNDRV_TIMER_CLASS_NONE = -1,
 653         SNDRV_TIMER_CLASS_SLAVE = 0,
 654         SNDRV_TIMER_CLASS_GLOBAL,
 655         SNDRV_TIMER_CLASS_CARD,
 656         SNDRV_TIMER_CLASS_PCM,
 657         SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM,
 658 };
 659
 660 /* slave timer classes */
 661 enum {
 662         SNDRV_TIMER_SCLASS_NONE = 0,
 663         SNDRV_TIMER_SCLASS_APPLICATION,
 664         SNDRV_TIMER_SCLASS_SEQUENCER,           /* alias */
 665         SNDRV_TIMER_SCLASS_OSS_SEQUENCER,       /* alias */
 666         SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER,
 667 };
 668
 669 /* global timers (device member) */
 670 #define SNDRV_TIMER_GLOBAL_SYSTEM       0
 671 #define SNDRV_TIMER_GLOBAL_RTC          1
 672 #define SNDRV_TIMER_GLOBAL_HPET         2
 673 #define SNDRV_TIMER_GLOBAL_HRTIMER      3
 674
 675 /* info flags */
 676 #define SNDRV_TIMER_FLG_SLAVE           (1<<0)  /* cannot be controlled */
 677
 678 struct snd_timer_id {
 679         int dev_class;
 680         int dev_sclass;
 681         int card;
 682         int device;
 683         int subdevice;
 684 };
 685
 686 struct snd_timer_ginfo {
 687         struct snd_timer_id tid;        /* requested timer ID */
 688         unsigned int flags;             /* timer flags - SNDRV_TIMER_FLG_* */
 689         int card;                       /* card number */
 690         unsigned char id[64];           /* timer identification */
 691         unsigned char name[80];         /* timer name */
 692         unsigned long reserved0;        /* reserved for future use */
 693         unsigned long resolution;       /* average period resolution in ns */
 694         unsigned long resolution_min;   /* minimal period resolution in ns */
 695         unsigned long resolution_max;   /* maximal period resolution in ns */
 696         unsigned int clients;           /* active timer clients */
 697         unsigned char reserved[32];
 698 };
 699
 700 struct snd_timer_gparams {
 701         struct snd_timer_id tid;        /* requested timer ID */
 702         unsigned long period_num;       /* requested precise period duration (in seconds) - numerator */
 703         unsigned long period_den;       /* requested precise period duration (in seconds) - denominator */
 704         unsigned char reserved[32];
 705 };
 706
 707 struct snd_timer_gstatus {
 708         struct snd_timer_id tid;        /* requested timer ID */
 709         unsigned long resolution;       /* current period resolution in ns */
 710         unsigned long resolution_num;   /* precise current period resolution (in seconds) - numerator */
 711         unsigned long resolution_den;   /* precise current period resolution (in seconds) - denominator */
 712         unsigned char reserved[32];
 713 };
 714
 715 struct snd_timer_select {
 716         struct snd_timer_id id; /* bind to timer ID */
 717         unsigned char reserved[32];     /* reserved */
 718 };
 719
 720 struct snd_timer_info {
 721         unsigned int flags;             /* timer flags - SNDRV_TIMER_FLG_* */
 722         int card;                       /* card number */
 723         unsigned char id[64];           /* timer identificator */
 724         unsigned char name[80];         /* timer name */
 725         unsigned long reserved0;        /* reserved for future use */
 726         unsigned long resolution;       /* average period resolution in ns */
 727         unsigned char reserved[64];     /* reserved */
 728 };
 729
 730 #define SNDRV_TIMER_PSFLG_AUTO          (1<<0)  /* auto start, otherwise one-shot */
 731 #define SNDRV_TIMER_PSFLG_EXCLUSIVE     (1<<1)  /* exclusive use, precise start/stop/pause/continue */
 732 #define SNDRV_TIMER_PSFLG_EARLY_EVENT   (1<<2)  /* write early event to the poll queue */
 733
 734 struct snd_timer_params {
 735         unsigned int flags;             /* flags - SNDRV_MIXER_PSFLG_* */
 736         unsigned int ticks;             /* requested resolution in ticks */
 737         unsigned int queue_size;        /* total size of queue (32-1024) */
 738         unsigned int reserved0;         /* reserved, was: failure locations */
 739         unsigned int filter;            /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */
 740         unsigned char reserved[60];     /* reserved */
 741 };
 742
 743 struct snd_timer_status {
 744         struct timespec tstamp;         /* Timestamp - last update */
 745         unsigned int resolution;        /* current period resolution in ns */
 746         unsigned int lost;              /* counter of master tick lost */
 747         unsigned int overrun;           /* count of read queue overruns */
 748         unsigned int queue;             /* used queue size */
 749         unsigned char reserved[64];     /* reserved */
 750 };
 751
 752 #define SNDRV_TIMER_IOCTL_PVERSION      _IOR('T', 0x00, int)
 753 #define SNDRV_TIMER_IOCTL_NEXT_DEVICE   _IOWR('T', 0x01, struct snd_timer_id)
 754 #define SNDRV_TIMER_IOCTL_TREAD         _IOW('T', 0x02, int)
 755 #define SNDRV_TIMER_IOCTL_GINFO         _IOWR('T', 0x03, struct snd_timer_ginfo)
 756 #define SNDRV_TIMER_IOCTL_GPARAMS       _IOW('T', 0x04, struct snd_timer_gparams)
 757 #define SNDRV_TIMER_IOCTL_GSTATUS       _IOWR('T', 0x05, struct snd_timer_gstatus)
 758 #define SNDRV_TIMER_IOCTL_SELECT        _IOW('T', 0x10, struct snd_timer_select)
 759 #define SNDRV_TIMER_IOCTL_INFO          _IOR('T', 0x11, struct snd_timer_info)
 760 #define SNDRV_TIMER_IOCTL_PARAMS        _IOW('T', 0x12, struct snd_timer_params)
 761 #define SNDRV_TIMER_IOCTL_STATUS        _IOR('T', 0x14, struct snd_timer_status)
 762 /* The following four ioctls are changed since 1.0.9 due to confliction */
 763 #define SNDRV_TIMER_IOCTL_START         _IO('T', 0xa0)
 764 #define SNDRV_TIMER_IOCTL_STOP          _IO('T', 0xa1)
 765 #define SNDRV_TIMER_IOCTL_CONTINUE      _IO('T', 0xa2)
 766 #define SNDRV_TIMER_IOCTL_PAUSE         _IO('T', 0xa3)
 767
 768 struct snd_timer_read {
 769         unsigned int resolution;
 770         unsigned int ticks;
 771 };
 772
 773 enum {
 774         SNDRV_TIMER_EVENT_RESOLUTION = 0,       /* val = resolution in ns */
 775         SNDRV_TIMER_EVENT_TICK,                 /* val = ticks */
 776         SNDRV_TIMER_EVENT_START,                /* val = resolution in ns */
 777         SNDRV_TIMER_EVENT_STOP,                 /* val = 0 */
 778         SNDRV_TIMER_EVENT_CONTINUE,             /* val = resolution in ns */
 779         SNDRV_TIMER_EVENT_PAUSE,                /* val = 0 */
 780         SNDRV_TIMER_EVENT_EARLY,                /* val = 0, early event */
 781         SNDRV_TIMER_EVENT_SUSPEND,              /* val = 0 */
 782         SNDRV_TIMER_EVENT_RESUME,               /* val = resolution in ns */
 783         /* master timer events for slave timer instances */
 784         SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10,
 785         SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10,
 786         SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10,
 787         SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10,
 788         SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10,
 789         SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10,
 790 };
 791
 792 struct snd_timer_tread {
 793         int event;
 794         struct timespec tstamp;
 795         unsigned int val;
 796 };
 797
 798 /****************************************************************************
 799  *                                                                          *
 800  *        Section for driver control interface - /dev/snd/control?          *
 801  *                                                                          *
 802  ****************************************************************************/
 803
 804 #define SNDRV_CTL_VERSION               SNDRV_PROTOCOL_VERSION(2, 0, 7)
 805
 806 struct snd_ctl_card_info {
 807         int card;                       /* card number */
 808         int pad;                        /* reserved for future (was type) */
 809         unsigned char id[16];           /* ID of card (user selectable) */
 810         unsigned char driver[16];       /* Driver name */
 811         unsigned char name[32];         /* Short name of soundcard */
 812         unsigned char longname[80];     /* name + info text about soundcard */
 813         unsigned char reserved_[16];    /* reserved for future (was ID of mixer) */
 814         unsigned char mixername[80];    /* visual mixer identification */
 815         unsigned char components[128];  /* card components / fine identification, delimited with one space (AC97 etc..) */
 816 };
 817
 818 typedef int __bitwise snd_ctl_elem_type_t;
 819 #define SNDRV_CTL_ELEM_TYPE_NONE        ((__force snd_ctl_elem_type_t) 0) /* invalid */
 820 #define SNDRV_CTL_ELEM_TYPE_BOOLEAN     ((__force snd_ctl_elem_type_t) 1) /* boolean type */
 821 #define SNDRV_CTL_ELEM_TYPE_INTEGER     ((__force snd_ctl_elem_type_t) 2) /* integer type */
 822 #define SNDRV_CTL_ELEM_TYPE_ENUMERATED  ((__force snd_ctl_elem_type_t) 3) /* enumerated type */
 823 #define SNDRV_CTL_ELEM_TYPE_BYTES       ((__force snd_ctl_elem_type_t) 4) /* byte array */
 824 #define SNDRV_CTL_ELEM_TYPE_IEC958      ((__force snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */
 825 #define SNDRV_CTL_ELEM_TYPE_INTEGER64   ((__force snd_ctl_elem_type_t) 6) /* 64-bit integer type */
 826 #define SNDRV_CTL_ELEM_TYPE_LAST        SNDRV_CTL_ELEM_TYPE_INTEGER64
 827
 828 typedef int __bitwise snd_ctl_elem_iface_t;
 829 #define SNDRV_CTL_ELEM_IFACE_CARD       ((__force snd_ctl_elem_iface_t) 0) /* global control */
 830 #define SNDRV_CTL_ELEM_IFACE_HWDEP      ((__force snd_ctl_elem_iface_t) 1) /* hardware dependent device */
 831 #define SNDRV_CTL_ELEM_IFACE_MIXER      ((__force snd_ctl_elem_iface_t) 2) /* virtual mixer device */
 832 #define SNDRV_CTL_ELEM_IFACE_PCM        ((__force snd_ctl_elem_iface_t) 3) /* PCM device */
 833 #define SNDRV_CTL_ELEM_IFACE_RAWMIDI    ((__force snd_ctl_elem_iface_t) 4) /* RawMidi device */
 834 #define SNDRV_CTL_ELEM_IFACE_TIMER      ((__force snd_ctl_elem_iface_t) 5) /* timer device */
 835 #define SNDRV_CTL_ELEM_IFACE_SEQUENCER  ((__force snd_ctl_elem_iface_t) 6) /* sequencer client */
 836 #define SNDRV_CTL_ELEM_IFACE_LAST       SNDRV_CTL_ELEM_IFACE_SEQUENCER
 837
 838 #define SNDRV_CTL_ELEM_ACCESS_READ              (1<<0)
 839 #define SNDRV_CTL_ELEM_ACCESS_WRITE             (1<<1)
 840 #define SNDRV_CTL_ELEM_ACCESS_READWRITE         (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE)
 841 #define SNDRV_CTL_ELEM_ACCESS_VOLATILE          (1<<2)  /* control value may be changed without a notification */
 842 #define SNDRV_CTL_ELEM_ACCESS_TIMESTAMP         (1<<3)  /* when was control changed */
 843 #define SNDRV_CTL_ELEM_ACCESS_TLV_READ          (1<<4)  /* TLV read is possible */
 844 #define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE         (1<<5)  /* TLV write is possible */
 845 #define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE     (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE)
 846 #define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND       (1<<6)  /* TLV command is possible */
 847 #define SNDRV_CTL_ELEM_ACCESS_INACTIVE          (1<<8)  /* control does actually nothing, but may be updated */
 848 #define SNDRV_CTL_ELEM_ACCESS_LOCK              (1<<9)  /* write lock */
 849 #define SNDRV_CTL_ELEM_ACCESS_OWNER             (1<<10) /* write lock owner */
 850 #define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK      (1<<28) /* kernel use a TLV callback */
 851 #define SNDRV_CTL_ELEM_ACCESS_USER              (1<<29) /* user space element */
 852 /* bits 30 and 31 are obsoleted (for indirect access) */
 853
 854 /* for further details see the ACPI and PCI power management specification */
 855 #define SNDRV_CTL_POWER_D0              0x0000  /* full On */
 856 #define SNDRV_CTL_POWER_D1              0x0100  /* partial On */
 857 #define SNDRV_CTL_POWER_D2              0x0200  /* partial On */
 858 #define SNDRV_CTL_POWER_D3              0x0300  /* Off */
 859 #define SNDRV_CTL_POWER_D3hot           (SNDRV_CTL_POWER_D3|0x0000)     /* Off, with power */
 860 #define SNDRV_CTL_POWER_D3cold          (SNDRV_CTL_POWER_D3|0x0001)     /* Off, without power */
 861
 862 #define SNDRV_CTL_ELEM_ID_NAME_MAXLEN   44
 863
 864 struct snd_ctl_elem_id {
 865         unsigned int numid;             /* numeric identifier, zero = invalid */
 866         snd_ctl_elem_iface_t iface;     /* interface identifier */
 867         unsigned int device;            /* device/client number */
 868         unsigned int subdevice;         /* subdevice (substream) number */
 869         unsigned char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];              /* ASCII name of item */
 870         unsigned int index;             /* index of item */
 871 };
 872
 873 struct snd_ctl_elem_list {
 874         unsigned int offset;            /* W: first element ID to get */
 875         unsigned int space;             /* W: count of element IDs to get */
 876         unsigned int used;              /* R: count of element IDs set */
 877         unsigned int count;             /* R: count of all elements */
 878         struct snd_ctl_elem_id __user *pids; /* R: IDs */
 879         unsigned char reserved[50];
 880 };
 881
 882 struct snd_ctl_elem_info {
 883         struct snd_ctl_elem_id id;      /* W: element ID */
 884         snd_ctl_elem_type_t type;       /* R: value type - SNDRV_CTL_ELEM_TYPE_* */
 885         unsigned int access;            /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */
 886         unsigned int count;             /* count of values */
 887         __kernel_pid_t owner;           /* owner's PID of this control */
 888         union {
 889                 struct {
 890                         long min;               /* R: minimum value */
 891                         long max;               /* R: maximum value */
 892                         long step;              /* R: step (0 variable) */
 893                 } integer;
 894                 struct {
 895                         long long min;          /* R: minimum value */
 896                         long long max;          /* R: maximum value */
 897                         long long step;         /* R: step (0 variable) */
 898                 } integer64;
 899                 struct {
 900                         unsigned int items;     /* R: number of items */
 901                         unsigned int item;      /* W: item number */
 902                         char name[64];          /* R: value name */
 903                         __u64 names_ptr;        /* W: names list (ELEM_ADD only) */
 904                         unsigned int names_length;
 905                 } enumerated;
 906                 unsigned char reserved[128];
 907         } value;
 908         union {
 909                 unsigned short d[4];            /* dimensions */
 910                 unsigned short *d_ptr;          /* indirect - obsoleted */
 911         } dimen;
 912         unsigned char reserved[64-4*sizeof(unsigned short)];
 913 };
 914
 915 struct snd_ctl_elem_value {
 916         struct snd_ctl_elem_id id;      /* W: element ID */
 917         unsigned int indirect: 1;       /* W: indirect access - obsoleted */
 918         union {
 919                 union {
 920                         long value[128];
 921                         long *value_ptr;        /* obsoleted */
 922                 } integer;
 923                 union {
 924                         long long value[64];
 925                         long long *value_ptr;   /* obsoleted */
 926                 } integer64;
 927                 union {
 928                         unsigned int item[128];
 929                         unsigned int *item_ptr; /* obsoleted */
 930                 } enumerated;
 931                 union {
 932                         unsigned char data[512];
 933                         unsigned char *data_ptr;        /* obsoleted */
 934                 } bytes;
 935                 struct snd_aes_iec958 iec958;
 936         } value;                /* RO */
 937         struct timespec tstamp;
 938         unsigned char reserved[128-sizeof(struct timespec)];
 939 };
 940
 941 struct snd_ctl_tlv {
 942         unsigned int numid;     /* control element numeric identification */
 943         unsigned int length;    /* in bytes aligned to 4 */
 944         unsigned int tlv[0];    /* first TLV */
 945 };
 946
 947 #define SNDRV_CTL_IOCTL_PVERSION        _IOR('U', 0x00, int)
 948 #define SNDRV_CTL_IOCTL_CARD_INFO       _IOR('U', 0x01, struct snd_ctl_card_info)
 949 #define SNDRV_CTL_IOCTL_ELEM_LIST       _IOWR('U', 0x10, struct snd_ctl_elem_list)
 950 #define SNDRV_CTL_IOCTL_ELEM_INFO       _IOWR('U', 0x11, struct snd_ctl_elem_info)
 951 #define SNDRV_CTL_IOCTL_ELEM_READ       _IOWR('U', 0x12, struct snd_ctl_elem_value)
 952 #define SNDRV_CTL_IOCTL_ELEM_WRITE      _IOWR('U', 0x13, struct snd_ctl_elem_value)
 953 #define SNDRV_CTL_IOCTL_ELEM_LOCK       _IOW('U', 0x14, struct snd_ctl_elem_id)
 954 #define SNDRV_CTL_IOCTL_ELEM_UNLOCK     _IOW('U', 0x15, struct snd_ctl_elem_id)
 955 #define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int)
 956 #define SNDRV_CTL_IOCTL_ELEM_ADD        _IOWR('U', 0x17, struct snd_ctl_elem_info)
 957 #define SNDRV_CTL_IOCTL_ELEM_REPLACE    _IOWR('U', 0x18, struct snd_ctl_elem_info)
 958 #define SNDRV_CTL_IOCTL_ELEM_REMOVE     _IOWR('U', 0x19, struct snd_ctl_elem_id)
 959 #define SNDRV_CTL_IOCTL_TLV_READ        _IOWR('U', 0x1a, struct snd_ctl_tlv)
 960 #define SNDRV_CTL_IOCTL_TLV_WRITE       _IOWR('U', 0x1b, struct snd_ctl_tlv)
 961 #define SNDRV_CTL_IOCTL_TLV_COMMAND     _IOWR('U', 0x1c, struct snd_ctl_tlv)
 962 #define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int)
 963 #define SNDRV_CTL_IOCTL_HWDEP_INFO      _IOR('U', 0x21, struct snd_hwdep_info)
 964 #define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int)
 965 #define SNDRV_CTL_IOCTL_PCM_INFO        _IOWR('U', 0x31, struct snd_pcm_info)
 966 #define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int)
 967 #define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int)
 968 #define SNDRV_CTL_IOCTL_RAWMIDI_INFO    _IOWR('U', 0x41, struct snd_rawmidi_info)
 969 #define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int)
 970 #define SNDRV_CTL_IOCTL_POWER           _IOWR('U', 0xd0, int)
 971 #define SNDRV_CTL_IOCTL_POWER_STATE     _IOR('U', 0xd1, int)
 972
 973 /*
 974  *  Read interface.
 975  */
 976
 977 enum sndrv_ctl_event_type {
 978         SNDRV_CTL_EVENT_ELEM = 0,
 979         SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM,
 980 };
 981
 982 #define SNDRV_CTL_EVENT_MASK_VALUE      (1<<0)  /* element value was changed */
 983 #define SNDRV_CTL_EVENT_MASK_INFO       (1<<1)  /* element info was changed */
 984 #define SNDRV_CTL_EVENT_MASK_ADD        (1<<2)  /* element was added */
 985 #define SNDRV_CTL_EVENT_MASK_TLV        (1<<3)  /* element TLV tree was changed */
 986 #define SNDRV_CTL_EVENT_MASK_REMOVE     (~0U)   /* element was removed */
 987
 988 struct snd_ctl_event {
 989         int type;       /* event type - SNDRV_CTL_EVENT_* */
 990         union {
 991                 struct {
 992                         unsigned int mask;
 993                         struct snd_ctl_elem_id id;
 994                 } elem;
 995                 unsigned char data8[60];
 996         } data;
 997 };
 998
 999 /*
1000  *  Control names
1001  */
1002
1003 #define SNDRV_CTL_NAME_NONE                             ""
1004 #define SNDRV_CTL_NAME_PLAYBACK                         "Playback "
1005 #define SNDRV_CTL_NAME_CAPTURE                          "Capture "
1006
1007 #define SNDRV_CTL_NAME_IEC958_NONE                      ""
1008 #define SNDRV_CTL_NAME_IEC958_SWITCH                    "Switch"
1009 #define SNDRV_CTL_NAME_IEC958_VOLUME                    "Volume"
1010 #define SNDRV_CTL_NAME_IEC958_DEFAULT                   "Default"
1011 #define SNDRV_CTL_NAME_IEC958_MASK                      "Mask"
1012 #define SNDRV_CTL_NAME_IEC958_CON_MASK                  "Con Mask"
1013 #define SNDRV_CTL_NAME_IEC958_PRO_MASK                  "Pro Mask"
1014 #define SNDRV_CTL_NAME_IEC958_PCM_STREAM                "PCM Stream"
1015 #define SNDRV_CTL_NAME_IEC958(expl,direction,what)      "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what
1016
1017 #endif /* _UAPI__SOUND_ASOUND_H */