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