1/* 2 * Advanced Linux Sound Architecture - ALSA - Driver 3 * Copyright (c) 1994-2003 by Jaroslav Kysela <perex@perex.cz>, 4 * Abramo Bagnara <abramo@alsa-project.org> 5 * 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 * 21 */ 22 23#ifndef _UAPI__SOUND_ASOUND_H 24#define _UAPI__SOUND_ASOUND_H 25 26#include <linux/types.h> 27 28 29/* 30 * protocol version 31 */ 32 33#define SNDRV_PROTOCOL_VERSION(major, minor, subminor) (((major)<<16)|((minor)<<8)|(subminor)) 34#define SNDRV_PROTOCOL_MAJOR(version) (((version)>>16)&0xffff) 35#define SNDRV_PROTOCOL_MINOR(version) (((version)>>8)&0xff) 36#define SNDRV_PROTOCOL_MICRO(version) ((version)&0xff) 37#define SNDRV_PROTOCOL_INCOMPATIBLE(kversion, uversion) \ 38 (SNDRV_PROTOCOL_MAJOR(kversion) != SNDRV_PROTOCOL_MAJOR(uversion) || \ 39 (SNDRV_PROTOCOL_MAJOR(kversion) == SNDRV_PROTOCOL_MAJOR(uversion) && \ 40 SNDRV_PROTOCOL_MINOR(kversion) != SNDRV_PROTOCOL_MINOR(uversion))) 41 42/**************************************************************************** 43 * * 44 * Digital audio interface * 45 * * 46 ****************************************************************************/ 47 48struct snd_aes_iec958 { 49 unsigned char status[24]; /* AES/IEC958 channel status bits */ 50 unsigned char subcode[147]; /* AES/IEC958 subcode bits */ 51 unsigned char pad; /* nothing */ 52 unsigned char dig_subframe[4]; /* AES/IEC958 subframe bits */ 53}; 54 55/**************************************************************************** 56 * * 57 * CEA-861 Audio InfoFrame. Used in HDMI and DisplayPort * 58 * * 59 ****************************************************************************/ 60 61struct snd_cea_861_aud_if { 62 unsigned char db1_ct_cc; /* coding type and channel count */ 63 unsigned char db2_sf_ss; /* sample frequency and size */ 64 unsigned char db3; /* not used, all zeros */ 65 unsigned char db4_ca; /* channel allocation code */ 66 unsigned char db5_dminh_lsv; /* downmix inhibit & level-shit values */ 67}; 68 69/**************************************************************************** 70 * * 71 * Section for driver hardware dependent interface - /dev/snd/hw? * 72 * * 73 ****************************************************************************/ 74 75#define SNDRV_HWDEP_VERSION SNDRV_PROTOCOL_VERSION(1, 0, 1) 76 77enum { 78 SNDRV_HWDEP_IFACE_OPL2 = 0, 79 SNDRV_HWDEP_IFACE_OPL3, 80 SNDRV_HWDEP_IFACE_OPL4, 81 SNDRV_HWDEP_IFACE_SB16CSP, /* Creative Signal Processor */ 82 SNDRV_HWDEP_IFACE_EMU10K1, /* FX8010 processor in EMU10K1 chip */ 83 SNDRV_HWDEP_IFACE_YSS225, /* Yamaha FX processor */ 84 SNDRV_HWDEP_IFACE_ICS2115, /* Wavetable synth */ 85 SNDRV_HWDEP_IFACE_SSCAPE, /* Ensoniq SoundScape ISA card (MC68EC000) */ 86 SNDRV_HWDEP_IFACE_VX, /* Digigram VX cards */ 87 SNDRV_HWDEP_IFACE_MIXART, /* Digigram miXart cards */ 88 SNDRV_HWDEP_IFACE_USX2Y, /* Tascam US122, US224 & US428 usb */ 89 SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */ 90 SNDRV_HWDEP_IFACE_BLUETOOTH, /* Bluetooth audio */ 91 SNDRV_HWDEP_IFACE_USX2Y_PCM, /* Tascam US122, US224 & US428 rawusb pcm */ 92 SNDRV_HWDEP_IFACE_PCXHR, /* Digigram PCXHR */ 93 SNDRV_HWDEP_IFACE_SB_RC, /* SB Extigy/Audigy2NX remote control */ 94 SNDRV_HWDEP_IFACE_HDA, /* HD-audio */ 95 SNDRV_HWDEP_IFACE_USB_STREAM, /* direct access to usb stream */ 96 SNDRV_HWDEP_IFACE_AUDIO_BE, /* Backend Audio Control */ 97 SNDRV_HWDEP_IFACE_AUDIO_CODEC, /* codec Audio Control */ 98 99 /* Don't forget to change the following: */ 100 SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_AUDIO_CODEC 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, 11) 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_DSD_U8 ((__force snd_pcm_format_t) 48) /* DSD, 1-byte samples DSD (x8) */ 220#define SNDRV_PCM_FORMAT_DSD_U16_LE ((__force snd_pcm_format_t) 49) /* DSD, 2-byte samples DSD (x16), little endian */ 221#define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_DSD_U16_LE 222 223#ifdef SNDRV_LITTLE_ENDIAN 224#define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE 225#define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE 226#define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE 227#define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE 228#define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE 229#define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE 230#define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE 231#define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE 232#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE 233#endif 234#ifdef SNDRV_BIG_ENDIAN 235#define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE 236#define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE 237#define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE 238#define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE 239#define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE 240#define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE 241#define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE 242#define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE 243#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE 244#endif 245 246typedef int __bitwise snd_pcm_subformat_t; 247#define SNDRV_PCM_SUBFORMAT_STD ((__force snd_pcm_subformat_t) 0) 248#define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_STD 249 250#define SNDRV_PCM_INFO_MMAP 0x00000001 /* hardware supports mmap */ 251#define SNDRV_PCM_INFO_MMAP_VALID 0x00000002 /* period data are valid during transfer */ 252#define SNDRV_PCM_INFO_DOUBLE 0x00000004 /* Double buffering needed for PCM start/stop */ 253#define SNDRV_PCM_INFO_BATCH 0x00000010 /* double buffering */ 254#define SNDRV_PCM_INFO_INTERLEAVED 0x00000100 /* channels are interleaved */ 255#define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200 /* channels are not interleaved */ 256#define SNDRV_PCM_INFO_COMPLEX 0x00000400 /* complex frame organization (mmap only) */ 257#define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000 /* hardware transfer block of samples */ 258#define SNDRV_PCM_INFO_OVERRANGE 0x00020000 /* hardware supports ADC (capture) overrange detection */ 259#define SNDRV_PCM_INFO_RESUME 0x00040000 /* hardware supports stream resume after suspend */ 260#define SNDRV_PCM_INFO_PAUSE 0x00080000 /* pause ioctl is supported */ 261#define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000 /* only half duplex */ 262#define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000 /* playback and capture stream are somewhat correlated */ 263#define SNDRV_PCM_INFO_SYNC_START 0x00400000 /* pcm support some kind of sync go */ 264#define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP 0x00800000 /* period wakeup can be disabled */ 265#define SNDRV_PCM_INFO_HAS_WALL_CLOCK 0x01000000 /* has audio wall clock for audio/system time sync */ 266#define SNDRV_PCM_INFO_FIFO_IN_FRAMES 0x80000000 /* internal kernel flag - FIFO size is in frames */ 267 268typedef int __bitwise snd_pcm_state_t; 269#define SNDRV_PCM_STATE_OPEN ((__force snd_pcm_state_t) 0) /* stream is open */ 270#define SNDRV_PCM_STATE_SETUP ((__force snd_pcm_state_t) 1) /* stream has a setup */ 271#define SNDRV_PCM_STATE_PREPARED ((__force snd_pcm_state_t) 2) /* stream is ready to start */ 272#define SNDRV_PCM_STATE_RUNNING ((__force snd_pcm_state_t) 3) /* stream is running */ 273#define SNDRV_PCM_STATE_XRUN ((__force snd_pcm_state_t) 4) /* stream reached an xrun */ 274#define SNDRV_PCM_STATE_DRAINING ((__force snd_pcm_state_t) 5) /* stream is draining */ 275#define SNDRV_PCM_STATE_PAUSED ((__force snd_pcm_state_t) 6) /* stream is paused */ 276#define SNDRV_PCM_STATE_SUSPENDED ((__force snd_pcm_state_t) 7) /* hardware is suspended */ 277#define SNDRV_PCM_STATE_DISCONNECTED ((__force snd_pcm_state_t) 8) /* hardware is disconnected */ 278#define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED 279 280enum { 281 SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000, 282 SNDRV_PCM_MMAP_OFFSET_STATUS = 0x80000000, 283 SNDRV_PCM_MMAP_OFFSET_CONTROL = 0x81000000, 284}; 285 286union snd_pcm_sync_id { 287 unsigned char id[16]; 288 unsigned short id16[8]; 289 unsigned int id32[4]; 290}; 291 292struct snd_pcm_info { 293 unsigned int device; /* RO/WR (control): device number */ 294 unsigned int subdevice; /* RO/WR (control): subdevice number */ 295 int stream; /* RO/WR (control): stream direction */ 296 int card; /* R: card number */ 297 unsigned char id[64]; /* ID (user selectable) */ 298 unsigned char name[80]; /* name of this device */ 299 unsigned char subname[32]; /* subdevice name */ 300 int dev_class; /* SNDRV_PCM_CLASS_* */ 301 int dev_subclass; /* SNDRV_PCM_SUBCLASS_* */ 302 unsigned int subdevices_count; 303 unsigned int subdevices_avail; 304 union snd_pcm_sync_id sync; /* hardware synchronization ID */ 305 unsigned char reserved[64]; /* reserved for future... */ 306}; 307 308typedef int snd_pcm_hw_param_t; 309#define SNDRV_PCM_HW_PARAM_ACCESS 0 /* Access type */ 310#define SNDRV_PCM_HW_PARAM_FORMAT 1 /* Format */ 311#define SNDRV_PCM_HW_PARAM_SUBFORMAT 2 /* Subformat */ 312#define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS 313#define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT 314 315#define SNDRV_PCM_HW_PARAM_SAMPLE_BITS 8 /* Bits per sample */ 316#define SNDRV_PCM_HW_PARAM_FRAME_BITS 9 /* Bits per frame */ 317#define SNDRV_PCM_HW_PARAM_CHANNELS 10 /* Channels */ 318#define SNDRV_PCM_HW_PARAM_RATE 11 /* Approx rate */ 319#define SNDRV_PCM_HW_PARAM_PERIOD_TIME 12 /* Approx distance between 320 * interrupts in us 321 */ 322#define SNDRV_PCM_HW_PARAM_PERIOD_SIZE 13 /* Approx frames between 323 * interrupts 324 */ 325#define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14 /* Approx bytes between 326 * interrupts 327 */ 328#define SNDRV_PCM_HW_PARAM_PERIODS 15 /* Approx interrupts per 329 * buffer 330 */ 331#define SNDRV_PCM_HW_PARAM_BUFFER_TIME 16 /* Approx duration of buffer 332 * in us 333 */ 334#define SNDRV_PCM_HW_PARAM_BUFFER_SIZE 17 /* Size of buffer in frames */ 335#define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18 /* Size of buffer in bytes */ 336#define SNDRV_PCM_HW_PARAM_TICK_TIME 19 /* Approx tick duration in us */ 337#define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS 338#define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME 339 340#define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0) /* avoid rate resampling */ 341#define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER (1<<1) /* export buffer */ 342#define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP (1<<2) /* disable period wakeups */ 343 344struct snd_interval { 345 unsigned int min, max; 346 unsigned int openmin:1, 347 openmax:1, 348 integer:1, 349 empty:1; 350}; 351 352#define SNDRV_MASK_MAX 256 353 354struct snd_mask { 355 __u32 bits[(SNDRV_MASK_MAX+31)/32]; 356}; 357 358struct snd_pcm_hw_params { 359 unsigned int flags; 360 struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - 361 SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; 362 struct snd_mask mres[5]; /* reserved masks */ 363 struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - 364 SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1]; 365 struct snd_interval ires[9]; /* reserved intervals */ 366 unsigned int rmask; /* W: requested masks */ 367 unsigned int cmask; /* R: changed masks */ 368 unsigned int info; /* R: Info flags for returned setup */ 369 unsigned int msbits; /* R: used most significant bits */ 370 unsigned int rate_num; /* R: rate numerator */ 371 unsigned int rate_den; /* R: rate denominator */ 372 snd_pcm_uframes_t fifo_size; /* R: chip FIFO size in frames */ 373 unsigned char reserved[64]; /* reserved for future */ 374}; 375 376enum { 377 SNDRV_PCM_TSTAMP_NONE = 0, 378 SNDRV_PCM_TSTAMP_ENABLE, 379 SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE, 380}; 381 382struct snd_pcm_sw_params { 383 int tstamp_mode; /* timestamp mode */ 384 unsigned int period_step; 385 unsigned int sleep_min; /* min ticks to sleep */ 386 snd_pcm_uframes_t avail_min; /* min avail frames for wakeup */ 387 snd_pcm_uframes_t xfer_align; /* obsolete: xfer size need to be a multiple */ 388 snd_pcm_uframes_t start_threshold; /* min hw_avail frames for automatic start */ 389 snd_pcm_uframes_t stop_threshold; /* min avail frames for automatic stop */ 390 snd_pcm_uframes_t silence_threshold; /* min distance from noise for silence filling */ 391 snd_pcm_uframes_t silence_size; /* silence block size */ 392 snd_pcm_uframes_t boundary; /* pointers wrap point */ 393 unsigned char reserved[64]; /* reserved for future */ 394}; 395 396struct snd_pcm_channel_info { 397 unsigned int channel; 398 __kernel_off_t offset; /* mmap offset */ 399 unsigned int first; /* offset to first sample in bits */ 400 unsigned int step; /* samples distance in bits */ 401}; 402 403struct snd_pcm_status { 404 snd_pcm_state_t state; /* stream state */ 405 struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */ 406 struct timespec tstamp; /* reference timestamp */ 407 snd_pcm_uframes_t appl_ptr; /* appl ptr */ 408 snd_pcm_uframes_t hw_ptr; /* hw ptr */ 409 snd_pcm_sframes_t delay; /* current delay in frames */ 410 snd_pcm_uframes_t avail; /* number of frames available */ 411 snd_pcm_uframes_t avail_max; /* max frames available on hw since last status */ 412 snd_pcm_uframes_t overrange; /* count of ADC (capture) overrange detections from last status */ 413 snd_pcm_state_t suspended_state; /* suspended stream state */ 414 __u32 reserved_alignment; /* must be filled with zero */ 415 struct timespec audio_tstamp; /* from sample counter or wall clock */ 416 unsigned char reserved[56-sizeof(struct timespec)]; /* must be filled with zero */ 417}; 418 419struct snd_pcm_mmap_status { 420 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */ 421 int pad1; /* Needed for 64 bit alignment */ 422 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */ 423 struct timespec tstamp; /* Timestamp */ 424 snd_pcm_state_t suspended_state; /* RO: suspended stream state */ 425 struct timespec audio_tstamp; /* from sample counter or wall clock */ 426}; 427 428struct snd_pcm_mmap_control { 429 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */ 430 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */ 431}; 432 433#define SNDRV_PCM_SYNC_PTR_HWSYNC (1<<0) /* execute hwsync */ 434#define SNDRV_PCM_SYNC_PTR_APPL (1<<1) /* get appl_ptr from driver (r/w op) */ 435#define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1<<2) /* get avail_min from driver */ 436 437struct snd_pcm_sync_ptr { 438 unsigned int flags; 439 union { 440 struct snd_pcm_mmap_status status; 441 unsigned char reserved[64]; 442 } s; 443 union { 444 struct snd_pcm_mmap_control control; 445 unsigned char reserved[64]; 446 } c; 447}; 448 449struct snd_xferi { 450 snd_pcm_sframes_t result; 451 void __user *buf; 452 snd_pcm_uframes_t frames; 453}; 454 455struct snd_xfern { 456 snd_pcm_sframes_t result; 457 void __user * __user *bufs; 458 snd_pcm_uframes_t frames; 459}; 460 461enum { 462 SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0, /* gettimeofday equivalent */ 463 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, /* posix_clock_monotonic equivalent */ 464 SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, 465}; 466 467/* channel positions */ 468enum { 469 SNDRV_CHMAP_UNKNOWN = 0, 470 SNDRV_CHMAP_NA, /* N/A, silent */ 471 SNDRV_CHMAP_MONO, /* mono stream */ 472 /* this follows the alsa-lib mixer channel value + 3 */ 473 SNDRV_CHMAP_FL, /* front left */ 474 SNDRV_CHMAP_FR, /* front right */ 475 SNDRV_CHMAP_RL, /* rear left */ 476 SNDRV_CHMAP_RR, /* rear right */ 477 SNDRV_CHMAP_FC, /* front center */ 478 SNDRV_CHMAP_LFE, /* LFE */ 479 SNDRV_CHMAP_SL, /* side left */ 480 SNDRV_CHMAP_SR, /* side right */ 481 SNDRV_CHMAP_RC, /* rear center */ 482 /* new definitions */ 483 SNDRV_CHMAP_FLC, /* front left center */ 484 SNDRV_CHMAP_FRC, /* front right center */ 485 SNDRV_CHMAP_RLC, /* rear left center */ 486 SNDRV_CHMAP_RRC, /* rear right center */ 487 SNDRV_CHMAP_FLW, /* front left wide */ 488 SNDRV_CHMAP_FRW, /* front right wide */ 489 SNDRV_CHMAP_FLH, /* front left high */ 490 SNDRV_CHMAP_FCH, /* front center high */ 491 SNDRV_CHMAP_FRH, /* front right high */ 492 SNDRV_CHMAP_TC, /* top center */ 493 SNDRV_CHMAP_TFL, /* top front left */ 494 SNDRV_CHMAP_TFR, /* top front right */ 495 SNDRV_CHMAP_TFC, /* top front center */ 496 SNDRV_CHMAP_TRL, /* top rear left */ 497 SNDRV_CHMAP_TRR, /* top rear right */ 498 SNDRV_CHMAP_TRC, /* top rear center */ 499 /* new definitions for UAC2 */ 500 SNDRV_CHMAP_TFLC, /* top front left center */ 501 SNDRV_CHMAP_TFRC, /* top front right center */ 502 SNDRV_CHMAP_TSL, /* top side left */ 503 SNDRV_CHMAP_TSR, /* top side right */ 504 SNDRV_CHMAP_LLFE, /* left LFE */ 505 SNDRV_CHMAP_RLFE, /* right LFE */ 506 SNDRV_CHMAP_BC, /* bottom center */ 507 SNDRV_CHMAP_BLC, /* bottom left center */ 508 SNDRV_CHMAP_BRC, /* bottom right center */ 509 SNDRV_CHMAP_LAST = SNDRV_CHMAP_BRC, 510}; 511 512#define SNDRV_CHMAP_POSITION_MASK 0xffff 513#define SNDRV_CHMAP_PHASE_INVERSE (0x01 << 16) 514#define SNDRV_CHMAP_DRIVER_SPEC (0x02 << 16) 515 516#define SNDRV_PCM_IOCTL_PVERSION _IOR('A', 0x00, int) 517#define SNDRV_PCM_IOCTL_INFO _IOR('A', 0x01, struct snd_pcm_info) 518#define SNDRV_PCM_IOCTL_TSTAMP _IOW('A', 0x02, int) 519#define SNDRV_PCM_IOCTL_TTSTAMP _IOW('A', 0x03, int) 520#define SNDRV_PCM_IOCTL_HW_REFINE _IOWR('A', 0x10, struct snd_pcm_hw_params) 521#define SNDRV_PCM_IOCTL_HW_PARAMS _IOWR('A', 0x11, struct snd_pcm_hw_params) 522#define SNDRV_PCM_IOCTL_HW_FREE _IO('A', 0x12) 523#define SNDRV_PCM_IOCTL_SW_PARAMS _IOWR('A', 0x13, struct snd_pcm_sw_params) 524#define SNDRV_PCM_IOCTL_STATUS _IOR('A', 0x20, struct snd_pcm_status) 525#define SNDRV_PCM_IOCTL_DELAY _IOR('A', 0x21, snd_pcm_sframes_t) 526#define SNDRV_PCM_IOCTL_HWSYNC _IO('A', 0x22) 527#define SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct snd_pcm_sync_ptr) 528#define SNDRV_PCM_IOCTL_CHANNEL_INFO _IOR('A', 0x32, struct snd_pcm_channel_info) 529#define SNDRV_PCM_IOCTL_PREPARE _IO('A', 0x40) 530#define SNDRV_PCM_IOCTL_RESET _IO('A', 0x41) 531#define SNDRV_PCM_IOCTL_START _IO('A', 0x42) 532#define SNDRV_PCM_IOCTL_DROP _IO('A', 0x43) 533#define SNDRV_PCM_IOCTL_DRAIN _IO('A', 0x44) 534#define SNDRV_PCM_IOCTL_PAUSE _IOW('A', 0x45, int) 535#define SNDRV_PCM_IOCTL_REWIND _IOW('A', 0x46, snd_pcm_uframes_t) 536#define SNDRV_PCM_IOCTL_RESUME _IO('A', 0x47) 537#define SNDRV_PCM_IOCTL_XRUN _IO('A', 0x48) 538#define SNDRV_PCM_IOCTL_FORWARD _IOW('A', 0x49, snd_pcm_uframes_t) 539#define SNDRV_PCM_IOCTL_WRITEI_FRAMES _IOW('A', 0x50, struct snd_xferi) 540#define SNDRV_PCM_IOCTL_READI_FRAMES _IOR('A', 0x51, struct snd_xferi) 541#define SNDRV_PCM_IOCTL_WRITEN_FRAMES _IOW('A', 0x52, struct snd_xfern) 542#define SNDRV_PCM_IOCTL_READN_FRAMES _IOR('A', 0x53, struct snd_xfern) 543#define SNDRV_PCM_IOCTL_LINK _IOW('A', 0x60, int) 544#define SNDRV_PCM_IOCTL_UNLINK _IO('A', 0x61) 545 546/***************************************************************************** 547 * * 548 * MIDI v1.0 interface * 549 * * 550 *****************************************************************************/ 551 552/* 553 * Raw MIDI section - /dev/snd/midi?? 554 */ 555 556#define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 0) 557 558enum { 559 SNDRV_RAWMIDI_STREAM_OUTPUT = 0, 560 SNDRV_RAWMIDI_STREAM_INPUT, 561 SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT, 562}; 563 564#define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001 565#define SNDRV_RAWMIDI_INFO_INPUT 0x00000002 566#define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004 567 568struct snd_rawmidi_info { 569 unsigned int device; /* RO/WR (control): device number */ 570 unsigned int subdevice; /* RO/WR (control): subdevice number */ 571 int stream; /* WR: stream */ 572 int card; /* R: card number */ 573 unsigned int flags; /* SNDRV_RAWMIDI_INFO_XXXX */ 574 unsigned char id[64]; /* ID (user selectable) */ 575 unsigned char name[80]; /* name of device */ 576 unsigned char subname[32]; /* name of active or selected subdevice */ 577 unsigned int subdevices_count; 578 unsigned int subdevices_avail; 579 unsigned char reserved[64]; /* reserved for future use */ 580}; 581 582struct snd_rawmidi_params { 583 int stream; 584 size_t buffer_size; /* queue size in bytes */ 585 size_t avail_min; /* minimum avail bytes for wakeup */ 586 unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */ 587 unsigned char reserved[16]; /* reserved for future use */ 588}; 589 590struct snd_rawmidi_status { 591 int stream; 592 struct timespec tstamp; /* Timestamp */ 593 size_t avail; /* available bytes */ 594 size_t xruns; /* count of overruns since last status (in bytes) */ 595 unsigned char reserved[16]; /* reserved for future use */ 596}; 597 598#define SNDRV_RAWMIDI_IOCTL_PVERSION _IOR('W', 0x00, int) 599#define SNDRV_RAWMIDI_IOCTL_INFO _IOR('W', 0x01, struct snd_rawmidi_info) 600#define SNDRV_RAWMIDI_IOCTL_PARAMS _IOWR('W', 0x10, struct snd_rawmidi_params) 601#define SNDRV_RAWMIDI_IOCTL_STATUS _IOWR('W', 0x20, struct snd_rawmidi_status) 602#define SNDRV_RAWMIDI_IOCTL_DROP _IOW('W', 0x30, int) 603#define SNDRV_RAWMIDI_IOCTL_DRAIN _IOW('W', 0x31, int) 604 605/* 606 * Timer section - /dev/snd/timer 607 */ 608 609#define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 6) 610 611enum { 612 SNDRV_TIMER_CLASS_NONE = -1, 613 SNDRV_TIMER_CLASS_SLAVE = 0, 614 SNDRV_TIMER_CLASS_GLOBAL, 615 SNDRV_TIMER_CLASS_CARD, 616 SNDRV_TIMER_CLASS_PCM, 617 SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM, 618}; 619 620/* slave timer classes */ 621enum { 622 SNDRV_TIMER_SCLASS_NONE = 0, 623 SNDRV_TIMER_SCLASS_APPLICATION, 624 SNDRV_TIMER_SCLASS_SEQUENCER, /* alias */ 625 SNDRV_TIMER_SCLASS_OSS_SEQUENCER, /* alias */ 626 SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER, 627}; 628 629/* global timers (device member) */ 630#define SNDRV_TIMER_GLOBAL_SYSTEM 0 631#define SNDRV_TIMER_GLOBAL_RTC 1 632#define SNDRV_TIMER_GLOBAL_HPET 2 633#define SNDRV_TIMER_GLOBAL_HRTIMER 3 634 635/* info flags */ 636#define SNDRV_TIMER_FLG_SLAVE (1<<0) /* cannot be controlled */ 637 638struct snd_timer_id { 639 int dev_class; 640 int dev_sclass; 641 int card; 642 int device; 643 int subdevice; 644}; 645 646struct snd_timer_ginfo { 647 struct snd_timer_id tid; /* requested timer ID */ 648 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 649 int card; /* card number */ 650 unsigned char id[64]; /* timer identification */ 651 unsigned char name[80]; /* timer name */ 652 unsigned long reserved0; /* reserved for future use */ 653 unsigned long resolution; /* average period resolution in ns */ 654 unsigned long resolution_min; /* minimal period resolution in ns */ 655 unsigned long resolution_max; /* maximal period resolution in ns */ 656 unsigned int clients; /* active timer clients */ 657 unsigned char reserved[32]; 658}; 659 660struct snd_timer_gparams { 661 struct snd_timer_id tid; /* requested timer ID */ 662 unsigned long period_num; /* requested precise period duration (in seconds) - numerator */ 663 unsigned long period_den; /* requested precise period duration (in seconds) - denominator */ 664 unsigned char reserved[32]; 665}; 666 667struct snd_timer_gstatus { 668 struct snd_timer_id tid; /* requested timer ID */ 669 unsigned long resolution; /* current period resolution in ns */ 670 unsigned long resolution_num; /* precise current period resolution (in seconds) - numerator */ 671 unsigned long resolution_den; /* precise current period resolution (in seconds) - denominator */ 672 unsigned char reserved[32]; 673}; 674 675struct snd_timer_select { 676 struct snd_timer_id id; /* bind to timer ID */ 677 unsigned char reserved[32]; /* reserved */ 678}; 679 680struct snd_timer_info { 681 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 682 int card; /* card number */ 683 unsigned char id[64]; /* timer identificator */ 684 unsigned char name[80]; /* timer name */ 685 unsigned long reserved0; /* reserved for future use */ 686 unsigned long resolution; /* average period resolution in ns */ 687 unsigned char reserved[64]; /* reserved */ 688}; 689 690#define SNDRV_TIMER_PSFLG_AUTO (1<<0) /* auto start, otherwise one-shot */ 691#define SNDRV_TIMER_PSFLG_EXCLUSIVE (1<<1) /* exclusive use, precise start/stop/pause/continue */ 692#define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2) /* write early event to the poll queue */ 693 694struct snd_timer_params { 695 unsigned int flags; /* flags - SNDRV_MIXER_PSFLG_* */ 696 unsigned int ticks; /* requested resolution in ticks */ 697 unsigned int queue_size; /* total size of queue (32-1024) */ 698 unsigned int reserved0; /* reserved, was: failure locations */ 699 unsigned int filter; /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */ 700 unsigned char reserved[60]; /* reserved */ 701}; 702 703struct snd_timer_status { 704 struct timespec tstamp; /* Timestamp - last update */ 705 unsigned int resolution; /* current period resolution in ns */ 706 unsigned int lost; /* counter of master tick lost */ 707 unsigned int overrun; /* count of read queue overruns */ 708 unsigned int queue; /* used queue size */ 709 unsigned char reserved[64]; /* reserved */ 710}; 711 712#define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int) 713#define SNDRV_TIMER_IOCTL_NEXT_DEVICE _IOWR('T', 0x01, struct snd_timer_id) 714#define SNDRV_TIMER_IOCTL_TREAD _IOW('T', 0x02, int) 715#define SNDRV_TIMER_IOCTL_GINFO _IOWR('T', 0x03, struct snd_timer_ginfo) 716#define SNDRV_TIMER_IOCTL_GPARAMS _IOW('T', 0x04, struct snd_timer_gparams) 717#define SNDRV_TIMER_IOCTL_GSTATUS _IOWR('T', 0x05, struct snd_timer_gstatus) 718#define SNDRV_TIMER_IOCTL_SELECT _IOW('T', 0x10, struct snd_timer_select) 719#define SNDRV_TIMER_IOCTL_INFO _IOR('T', 0x11, struct snd_timer_info) 720#define SNDRV_TIMER_IOCTL_PARAMS _IOW('T', 0x12, struct snd_timer_params) 721#define SNDRV_TIMER_IOCTL_STATUS _IOR('T', 0x14, struct snd_timer_status) 722/* The following four ioctls are changed since 1.0.9 due to confliction */ 723#define SNDRV_TIMER_IOCTL_START _IO('T', 0xa0) 724#define SNDRV_TIMER_IOCTL_STOP _IO('T', 0xa1) 725#define SNDRV_TIMER_IOCTL_CONTINUE _IO('T', 0xa2) 726#define SNDRV_TIMER_IOCTL_PAUSE _IO('T', 0xa3) 727 728struct snd_timer_read { 729 unsigned int resolution; 730 unsigned int ticks; 731}; 732 733enum { 734 SNDRV_TIMER_EVENT_RESOLUTION = 0, /* val = resolution in ns */ 735 SNDRV_TIMER_EVENT_TICK, /* val = ticks */ 736 SNDRV_TIMER_EVENT_START, /* val = resolution in ns */ 737 SNDRV_TIMER_EVENT_STOP, /* val = 0 */ 738 SNDRV_TIMER_EVENT_CONTINUE, /* val = resolution in ns */ 739 SNDRV_TIMER_EVENT_PAUSE, /* val = 0 */ 740 SNDRV_TIMER_EVENT_EARLY, /* val = 0, early event */ 741 SNDRV_TIMER_EVENT_SUSPEND, /* val = 0 */ 742 SNDRV_TIMER_EVENT_RESUME, /* val = resolution in ns */ 743 /* master timer events for slave timer instances */ 744 SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10, 745 SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10, 746 SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10, 747 SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10, 748 SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10, 749 SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10, 750}; 751 752struct snd_timer_tread { 753 int event; 754 struct timespec tstamp; 755 unsigned int val; 756}; 757 758/**************************************************************************** 759 * * 760 * Section for driver control interface - /dev/snd/control? * 761 * * 762 ****************************************************************************/ 763 764#define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 7) 765 766struct snd_ctl_card_info { 767 int card; /* card number */ 768 int pad; /* reserved for future (was type) */ 769 unsigned char id[16]; /* ID of card (user selectable) */ 770 unsigned char driver[16]; /* Driver name */ 771 unsigned char name[32]; /* Short name of soundcard */ 772 unsigned char longname[80]; /* name + info text about soundcard */ 773 unsigned char reserved_[16]; /* reserved for future (was ID of mixer) */ 774 unsigned char mixername[80]; /* visual mixer identification */ 775 unsigned char components[128]; /* card components / fine identification, delimited with one space (AC97 etc..) */ 776}; 777 778typedef int __bitwise snd_ctl_elem_type_t; 779#define SNDRV_CTL_ELEM_TYPE_NONE ((__force snd_ctl_elem_type_t) 0) /* invalid */ 780#define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1) /* boolean type */ 781#define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2) /* integer type */ 782#define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((__force snd_ctl_elem_type_t) 3) /* enumerated type */ 783#define SNDRV_CTL_ELEM_TYPE_BYTES ((__force snd_ctl_elem_type_t) 4) /* byte array */ 784#define SNDRV_CTL_ELEM_TYPE_IEC958 ((__force snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */ 785#define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((__force snd_ctl_elem_type_t) 6) /* 64-bit integer type */ 786#define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64 787 788typedef int __bitwise snd_ctl_elem_iface_t; 789#define SNDRV_CTL_ELEM_IFACE_CARD ((__force snd_ctl_elem_iface_t) 0) /* global control */ 790#define SNDRV_CTL_ELEM_IFACE_HWDEP ((__force snd_ctl_elem_iface_t) 1) /* hardware dependent device */ 791#define SNDRV_CTL_ELEM_IFACE_MIXER ((__force snd_ctl_elem_iface_t) 2) /* virtual mixer device */ 792#define SNDRV_CTL_ELEM_IFACE_PCM ((__force snd_ctl_elem_iface_t) 3) /* PCM device */ 793#define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((__force snd_ctl_elem_iface_t) 4) /* RawMidi device */ 794#define SNDRV_CTL_ELEM_IFACE_TIMER ((__force snd_ctl_elem_iface_t) 5) /* timer device */ 795#define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((__force snd_ctl_elem_iface_t) 6) /* sequencer client */ 796#define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER 797 798#define SNDRV_CTL_ELEM_ACCESS_READ (1<<0) 799#define SNDRV_CTL_ELEM_ACCESS_WRITE (1<<1) 800#define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE) 801#define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1<<2) /* control value may be changed without a notification */ 802#define SNDRV_CTL_ELEM_ACCESS_TIMESTAMP (1<<3) /* when was control changed */ 803#define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1<<4) /* TLV read is possible */ 804#define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1<<5) /* TLV write is possible */ 805#define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) 806#define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1<<6) /* TLV command is possible */ 807#define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) /* control does actually nothing, but may be updated */ 808#define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) /* write lock */ 809#define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) /* write lock owner */ 810#define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1<<28) /* kernel use a TLV callback */ 811#define SNDRV_CTL_ELEM_ACCESS_USER (1<<29) /* user space element */ 812/* bits 30 and 31 are obsoleted (for indirect access) */ 813 814/* for further details see the ACPI and PCI power management specification */ 815#define SNDRV_CTL_POWER_D0 0x0000 /* full On */ 816#define SNDRV_CTL_POWER_D1 0x0100 /* partial On */ 817#define SNDRV_CTL_POWER_D2 0x0200 /* partial On */ 818#define SNDRV_CTL_POWER_D3 0x0300 /* Off */ 819#define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) /* Off, with power */ 820#define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) /* Off, without power */ 821 822struct snd_ctl_elem_id { 823 unsigned int numid; /* numeric identifier, zero = invalid */ 824 snd_ctl_elem_iface_t iface; /* interface identifier */ 825 unsigned int device; /* device/client number */ 826 unsigned int subdevice; /* subdevice (substream) number */ 827 unsigned char name[44]; /* ASCII name of item */ 828 unsigned int index; /* index of item */ 829}; 830 831struct snd_ctl_elem_list { 832 unsigned int offset; /* W: first element ID to get */ 833 unsigned int space; /* W: count of element IDs to get */ 834 unsigned int used; /* R: count of element IDs set */ 835 unsigned int count; /* R: count of all elements */ 836 struct snd_ctl_elem_id __user *pids; /* R: IDs */ 837 unsigned char reserved[50]; 838}; 839 840struct snd_ctl_elem_info { 841 struct snd_ctl_elem_id id; /* W: element ID */ 842 snd_ctl_elem_type_t type; /* R: value type - SNDRV_CTL_ELEM_TYPE_* */ 843 unsigned int access; /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */ 844 unsigned int count; /* count of values */ 845 __kernel_pid_t owner; /* owner's PID of this control */ 846 union { 847 struct { 848 long min; /* R: minimum value */ 849 long max; /* R: maximum value */ 850 long step; /* R: step (0 variable) */ 851 } integer; 852 struct { 853 long long min; /* R: minimum value */ 854 long long max; /* R: maximum value */ 855 long long step; /* R: step (0 variable) */ 856 } integer64; 857 struct { 858 unsigned int items; /* R: number of items */ 859 unsigned int item; /* W: item number */ 860 char name[64]; /* R: value name */ 861 __u64 names_ptr; /* W: names list (ELEM_ADD only) */ 862 unsigned int names_length; 863 } enumerated; 864 unsigned char reserved[128]; 865 } value; 866 union { 867 unsigned short d[4]; /* dimensions */ 868 unsigned short *d_ptr; /* indirect - obsoleted */ 869 } dimen; 870 unsigned char reserved[64-4*sizeof(unsigned short)]; 871}; 872 873struct snd_ctl_elem_value { 874 struct snd_ctl_elem_id id; /* W: element ID */ 875 unsigned int indirect: 1; /* W: indirect access - obsoleted */ 876 union { 877 union { 878 long value[128]; 879 long *value_ptr; /* obsoleted */ 880 } integer; 881 union { 882 long long value[64]; 883 long long *value_ptr; /* obsoleted */ 884 } integer64; 885 union { 886 unsigned int item[128]; 887 unsigned int *item_ptr; /* obsoleted */ 888 } enumerated; 889 union { 890 unsigned char data[512]; 891 unsigned char *data_ptr; /* obsoleted */ 892 } bytes; 893 struct snd_aes_iec958 iec958; 894 } value; /* RO */ 895 struct timespec tstamp; 896 unsigned char reserved[128-sizeof(struct timespec)]; 897}; 898 899struct snd_ctl_tlv { 900 unsigned int numid; /* control element numeric identification */ 901 unsigned int length; /* in bytes aligned to 4 */ 902 unsigned int tlv[0]; /* first TLV */ 903}; 904 905#define SNDRV_CTL_IOCTL_PVERSION _IOR('U', 0x00, int) 906#define SNDRV_CTL_IOCTL_CARD_INFO _IOR('U', 0x01, struct snd_ctl_card_info) 907#define SNDRV_CTL_IOCTL_ELEM_LIST _IOWR('U', 0x10, struct snd_ctl_elem_list) 908#define SNDRV_CTL_IOCTL_ELEM_INFO _IOWR('U', 0x11, struct snd_ctl_elem_info) 909#define SNDRV_CTL_IOCTL_ELEM_READ _IOWR('U', 0x12, struct snd_ctl_elem_value) 910#define SNDRV_CTL_IOCTL_ELEM_WRITE _IOWR('U', 0x13, struct snd_ctl_elem_value) 911#define SNDRV_CTL_IOCTL_ELEM_LOCK _IOW('U', 0x14, struct snd_ctl_elem_id) 912#define SNDRV_CTL_IOCTL_ELEM_UNLOCK _IOW('U', 0x15, struct snd_ctl_elem_id) 913#define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int) 914#define SNDRV_CTL_IOCTL_ELEM_ADD _IOWR('U', 0x17, struct snd_ctl_elem_info) 915#define SNDRV_CTL_IOCTL_ELEM_REPLACE _IOWR('U', 0x18, struct snd_ctl_elem_info) 916#define SNDRV_CTL_IOCTL_ELEM_REMOVE _IOWR('U', 0x19, struct snd_ctl_elem_id) 917#define SNDRV_CTL_IOCTL_TLV_READ _IOWR('U', 0x1a, struct snd_ctl_tlv) 918#define SNDRV_CTL_IOCTL_TLV_WRITE _IOWR('U', 0x1b, struct snd_ctl_tlv) 919#define SNDRV_CTL_IOCTL_TLV_COMMAND _IOWR('U', 0x1c, struct snd_ctl_tlv) 920#define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int) 921#define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info) 922#define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int) 923#define SNDRV_CTL_IOCTL_PCM_INFO _IOWR('U', 0x31, struct snd_pcm_info) 924#define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int) 925#define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int) 926#define SNDRV_CTL_IOCTL_RAWMIDI_INFO _IOWR('U', 0x41, struct snd_rawmidi_info) 927#define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int) 928#define SNDRV_CTL_IOCTL_POWER _IOWR('U', 0xd0, int) 929#define SNDRV_CTL_IOCTL_POWER_STATE _IOR('U', 0xd1, int) 930 931/* 932 * Read interface. 933 */ 934 935enum sndrv_ctl_event_type { 936 SNDRV_CTL_EVENT_ELEM = 0, 937 SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM, 938}; 939 940#define SNDRV_CTL_EVENT_MASK_VALUE (1<<0) /* element value was changed */ 941#define SNDRV_CTL_EVENT_MASK_INFO (1<<1) /* element info was changed */ 942#define SNDRV_CTL_EVENT_MASK_ADD (1<<2) /* element was added */ 943#define SNDRV_CTL_EVENT_MASK_TLV (1<<3) /* element TLV tree was changed */ 944#define SNDRV_CTL_EVENT_MASK_REMOVE (~0U) /* element was removed */ 945 946struct snd_ctl_event { 947 int type; /* event type - SNDRV_CTL_EVENT_* */ 948 union { 949 struct { 950 unsigned int mask; 951 struct snd_ctl_elem_id id; 952 } elem; 953 unsigned char data8[60]; 954 } data; 955}; 956 957/* 958 * Control names 959 */ 960 961#define SNDRV_CTL_NAME_NONE "" 962#define SNDRV_CTL_NAME_PLAYBACK "Playback " 963#define SNDRV_CTL_NAME_CAPTURE "Capture " 964 965#define SNDRV_CTL_NAME_IEC958_NONE "" 966#define SNDRV_CTL_NAME_IEC958_SWITCH "Switch" 967#define SNDRV_CTL_NAME_IEC958_VOLUME "Volume" 968#define SNDRV_CTL_NAME_IEC958_DEFAULT "Default" 969#define SNDRV_CTL_NAME_IEC958_MASK "Mask" 970#define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask" 971#define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask" 972#define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream" 973#define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what 974 975#endif /* _UAPI__SOUND_ASOUND_H */ 976