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