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asound.h
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linux-6.19.14/include/uapi/sound/asound.h
1/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ 2/* 3 * Advanced Linux Sound Architecture - ALSA - Driver 4 * Copyright (c) 1994-2003 by Jaroslav Kysela <perex@perex.cz>, 5 * Abramo Bagnara <abramo@alsa-project.org> 6 */ 7 8#ifndef _UAPI__SOUND_ASOUND_H 9#define _UAPI__SOUND_ASOUND_H 10 11#if defined(__KERNEL__) || defined(__linux__) 12#include <linux/types.h> 13#include <asm/byteorder.h> 14#else 15#include <endian.h> 16#include <sys/ioctl.h> 17#endif 18 19#ifndef __KERNEL__ 20#include <stdlib.h> 21#include <time.h> 22#endif 23 24/* 25 * protocol version 26 */ 27 28#define SNDRV_PROTOCOL_VERSION(major, minor, subminor) (((major)<<16)|((minor)<<8)|(subminor)) 29#define SNDRV_PROTOCOL_MAJOR(version) (((version)>>16)&0xffff) 30#define SNDRV_PROTOCOL_MINOR(version) (((version)>>8)&0xff) 31#define SNDRV_PROTOCOL_MICRO(version) ((version)&0xff) 32#define SNDRV_PROTOCOL_INCOMPATIBLE(kversion, uversion) \ 33 (SNDRV_PROTOCOL_MAJOR(kversion) != SNDRV_PROTOCOL_MAJOR(uversion) || \ 34 (SNDRV_PROTOCOL_MAJOR(kversion) == SNDRV_PROTOCOL_MAJOR(uversion) && \ 35 SNDRV_PROTOCOL_MINOR(kversion) != SNDRV_PROTOCOL_MINOR(uversion))) 36 37/**************************************************************************** 38 * * 39 * Digital audio interface * 40 * * 41 ****************************************************************************/ 42 43#define AES_IEC958_STATUS_SIZE 24 44 45struct snd_aes_iec958 { 46 unsigned char status[AES_IEC958_STATUS_SIZE]; /* AES/IEC958 channel status bits */ 47 unsigned char subcode[147]; /* AES/IEC958 subcode bits */ 48 unsigned char pad; /* nothing */ 49 unsigned char dig_subframe[4]; /* AES/IEC958 subframe bits */ 50}; 51 52/**************************************************************************** 53 * * 54 * CEA-861 Audio InfoFrame. Used in HDMI and DisplayPort * 55 * * 56 ****************************************************************************/ 57 58struct snd_cea_861_aud_if { 59 unsigned char db1_ct_cc; /* coding type and channel count */ 60 unsigned char db2_sf_ss; /* sample frequency and size */ 61 unsigned char db3; /* not used, all zeros */ 62 unsigned char db4_ca; /* channel allocation code */ 63 unsigned char db5_dminh_lsv; /* downmix inhibit & level-shift values */ 64}; 65 66/**************************************************************************** 67 * * 68 * Section for driver hardware dependent interface - /dev/snd/hw? * 69 * * 70 ****************************************************************************/ 71 72#define SNDRV_HWDEP_VERSION SNDRV_PROTOCOL_VERSION(1, 0, 1) 73 74enum { 75 SNDRV_HWDEP_IFACE_OPL2 = 0, 76 SNDRV_HWDEP_IFACE_OPL3, 77 SNDRV_HWDEP_IFACE_OPL4, 78 SNDRV_HWDEP_IFACE_SB16CSP, /* Creative Signal Processor */ 79 SNDRV_HWDEP_IFACE_EMU10K1, /* FX8010 processor in EMU10K1 chip */ 80 SNDRV_HWDEP_IFACE_YSS225, /* Yamaha FX processor */ 81 SNDRV_HWDEP_IFACE_ICS2115, /* Wavetable synth */ 82 SNDRV_HWDEP_IFACE_SSCAPE, /* Ensoniq SoundScape ISA card (MC68EC000) */ 83 SNDRV_HWDEP_IFACE_VX, /* Digigram VX cards */ 84 SNDRV_HWDEP_IFACE_MIXART, /* Digigram miXart cards */ 85 SNDRV_HWDEP_IFACE_USX2Y, /* Tascam US122, US224 & US428 usb */ 86 SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */ 87 SNDRV_HWDEP_IFACE_BLUETOOTH, /* Bluetooth audio */ 88 SNDRV_HWDEP_IFACE_USX2Y_PCM, /* Tascam US122, US224 & US428 rawusb pcm */ 89 SNDRV_HWDEP_IFACE_PCXHR, /* Digigram PCXHR */ 90 SNDRV_HWDEP_IFACE_SB_RC, /* SB Extigy/Audigy2NX remote control */ 91 SNDRV_HWDEP_IFACE_HDA, /* HD-audio */ 92 SNDRV_HWDEP_IFACE_USB_STREAM, /* direct access to usb stream */ 93 SNDRV_HWDEP_IFACE_FW_DICE, /* TC DICE FireWire device */ 94 SNDRV_HWDEP_IFACE_FW_FIREWORKS, /* Echo Audio Fireworks based device */ 95 SNDRV_HWDEP_IFACE_FW_BEBOB, /* BridgeCo BeBoB based device */ 96 SNDRV_HWDEP_IFACE_FW_OXFW, /* Oxford OXFW970/971 based device */ 97 SNDRV_HWDEP_IFACE_FW_DIGI00X, /* Digidesign Digi 002/003 family */ 98 SNDRV_HWDEP_IFACE_FW_TASCAM, /* TASCAM FireWire series */ 99 SNDRV_HWDEP_IFACE_LINE6, /* Line6 USB processors */ 100 SNDRV_HWDEP_IFACE_FW_MOTU, /* MOTU FireWire series */ 101 SNDRV_HWDEP_IFACE_FW_FIREFACE, /* RME Fireface series */ 102 103 /* Don't forget to change the following: */ 104 SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_FW_FIREFACE 105}; 106 107struct snd_hwdep_info { 108 unsigned int device; /* WR: device number */ 109 int card; /* R: card number */ 110 unsigned char id[64]; /* ID (user selectable) */ 111 unsigned char name[80]; /* hwdep name */ 112 int iface; /* hwdep interface */ 113 unsigned char reserved[64]; /* reserved for future */ 114}; 115 116/* generic DSP loader */ 117struct snd_hwdep_dsp_status { 118 unsigned int version; /* R: driver-specific version */ 119 unsigned char id[32]; /* R: driver-specific ID string */ 120 unsigned int num_dsps; /* R: number of DSP images to transfer */ 121 unsigned int dsp_loaded; /* R: bit flags indicating the loaded DSPs */ 122 unsigned int chip_ready; /* R: 1 = initialization finished */ 123 unsigned char reserved[16]; /* reserved for future use */ 124}; 125 126struct snd_hwdep_dsp_image { 127 unsigned int index; /* W: DSP index */ 128 unsigned char name[64]; /* W: ID (e.g. file name) */ 129 unsigned char __user *image; /* W: binary image */ 130 size_t length; /* W: size of image in bytes */ 131 unsigned long driver_data; /* W: driver-specific data */ 132}; 133 134#define SNDRV_HWDEP_IOCTL_PVERSION _IOR ('H', 0x00, int) 135#define SNDRV_HWDEP_IOCTL_INFO _IOR ('H', 0x01, struct snd_hwdep_info) 136#define SNDRV_HWDEP_IOCTL_DSP_STATUS _IOR('H', 0x02, struct snd_hwdep_dsp_status) 137#define SNDRV_HWDEP_IOCTL_DSP_LOAD _IOW('H', 0x03, struct snd_hwdep_dsp_image) 138 139/***************************************************************************** 140 * * 141 * Digital Audio (PCM) interface - /dev/snd/pcm?? * 142 * * 143 *****************************************************************************/ 144 145#define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 18) 146 147typedef unsigned long snd_pcm_uframes_t; 148typedef signed long snd_pcm_sframes_t; 149 150enum { 151 SNDRV_PCM_CLASS_GENERIC = 0, /* standard mono or stereo device */ 152 SNDRV_PCM_CLASS_MULTI, /* multichannel device */ 153 SNDRV_PCM_CLASS_MODEM, /* software modem class */ 154 SNDRV_PCM_CLASS_DIGITIZER, /* digitizer class */ 155 /* Don't forget to change the following: */ 156 SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER, 157}; 158 159enum { 160 SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, /* mono or stereo subdevices are mixed together */ 161 SNDRV_PCM_SUBCLASS_MULTI_MIX, /* multichannel subdevices are mixed together */ 162 /* Don't forget to change the following: */ 163 SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX, 164}; 165 166enum { 167 SNDRV_PCM_STREAM_PLAYBACK = 0, 168 SNDRV_PCM_STREAM_CAPTURE, 169 SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE, 170}; 171 172typedef int __bitwise snd_pcm_access_t; 173#define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED ((__force snd_pcm_access_t) 0) /* interleaved mmap */ 174#define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED ((__force snd_pcm_access_t) 1) /* noninterleaved mmap */ 175#define SNDRV_PCM_ACCESS_MMAP_COMPLEX ((__force snd_pcm_access_t) 2) /* complex mmap */ 176#define SNDRV_PCM_ACCESS_RW_INTERLEAVED ((__force snd_pcm_access_t) 3) /* readi/writei */ 177#define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED ((__force snd_pcm_access_t) 4) /* readn/writen */ 178#define SNDRV_PCM_ACCESS_LAST SNDRV_PCM_ACCESS_RW_NONINTERLEAVED 179 180typedef int __bitwise snd_pcm_format_t; 181#define SNDRV_PCM_FORMAT_S8 ((__force snd_pcm_format_t) 0) 182#define SNDRV_PCM_FORMAT_U8 ((__force snd_pcm_format_t) 1) 183#define SNDRV_PCM_FORMAT_S16_LE ((__force snd_pcm_format_t) 2) 184#define SNDRV_PCM_FORMAT_S16_BE ((__force snd_pcm_format_t) 3) 185#define SNDRV_PCM_FORMAT_U16_LE ((__force snd_pcm_format_t) 4) 186#define SNDRV_PCM_FORMAT_U16_BE ((__force snd_pcm_format_t) 5) 187#define SNDRV_PCM_FORMAT_S24_LE ((__force snd_pcm_format_t) 6) /* low three bytes */ 188#define SNDRV_PCM_FORMAT_S24_BE ((__force snd_pcm_format_t) 7) /* low three bytes */ 189#define SNDRV_PCM_FORMAT_U24_LE ((__force snd_pcm_format_t) 8) /* low three bytes */ 190#define SNDRV_PCM_FORMAT_U24_BE ((__force snd_pcm_format_t) 9) /* low three bytes */ 191/* 192 * For S32/U32 formats, 'msbits' hardware parameter is often used to deliver information about the 193 * available bit count in most significant bit. It's for the case of so-called 'left-justified' or 194 * `right-padding` sample which has less width than 32 bit. 195 */ 196#define SNDRV_PCM_FORMAT_S32_LE ((__force snd_pcm_format_t) 10) 197#define SNDRV_PCM_FORMAT_S32_BE ((__force snd_pcm_format_t) 11) 198#define SNDRV_PCM_FORMAT_U32_LE ((__force snd_pcm_format_t) 12) 199#define SNDRV_PCM_FORMAT_U32_BE ((__force snd_pcm_format_t) 13) 200#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 */ 201#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 */ 202#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 */ 203#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 */ 204#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((__force snd_pcm_format_t) 18) /* IEC-958 subframe, Little Endian */ 205#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((__force snd_pcm_format_t) 19) /* IEC-958 subframe, Big Endian */ 206#define SNDRV_PCM_FORMAT_MU_LAW ((__force snd_pcm_format_t) 20) 207#define SNDRV_PCM_FORMAT_A_LAW ((__force snd_pcm_format_t) 21) 208#define SNDRV_PCM_FORMAT_IMA_ADPCM ((__force snd_pcm_format_t) 22) 209#define SNDRV_PCM_FORMAT_MPEG ((__force snd_pcm_format_t) 23) 210#define SNDRV_PCM_FORMAT_GSM ((__force snd_pcm_format_t) 24) 211#define SNDRV_PCM_FORMAT_S20_LE ((__force snd_pcm_format_t) 25) /* in four bytes, LSB justified */ 212#define SNDRV_PCM_FORMAT_S20_BE ((__force snd_pcm_format_t) 26) /* in four bytes, LSB justified */ 213#define SNDRV_PCM_FORMAT_U20_LE ((__force snd_pcm_format_t) 27) /* in four bytes, LSB justified */ 214#define SNDRV_PCM_FORMAT_U20_BE ((__force snd_pcm_format_t) 28) /* in four bytes, LSB justified */ 215/* gap in the numbering for a future standard linear format */ 216#define SNDRV_PCM_FORMAT_SPECIAL ((__force snd_pcm_format_t) 31) 217#define SNDRV_PCM_FORMAT_S24_3LE ((__force snd_pcm_format_t) 32) /* in three bytes */ 218#define SNDRV_PCM_FORMAT_S24_3BE ((__force snd_pcm_format_t) 33) /* in three bytes */ 219#define SNDRV_PCM_FORMAT_U24_3LE ((__force snd_pcm_format_t) 34) /* in three bytes */ 220#define SNDRV_PCM_FORMAT_U24_3BE ((__force snd_pcm_format_t) 35) /* in three bytes */ 221#define SNDRV_PCM_FORMAT_S20_3LE ((__force snd_pcm_format_t) 36) /* in three bytes */ 222#define SNDRV_PCM_FORMAT_S20_3BE ((__force snd_pcm_format_t) 37) /* in three bytes */ 223#define SNDRV_PCM_FORMAT_U20_3LE ((__force snd_pcm_format_t) 38) /* in three bytes */ 224#define SNDRV_PCM_FORMAT_U20_3BE ((__force snd_pcm_format_t) 39) /* in three bytes */ 225#define SNDRV_PCM_FORMAT_S18_3LE ((__force snd_pcm_format_t) 40) /* in three bytes */ 226#define SNDRV_PCM_FORMAT_S18_3BE ((__force snd_pcm_format_t) 41) /* in three bytes */ 227#define SNDRV_PCM_FORMAT_U18_3LE ((__force snd_pcm_format_t) 42) /* in three bytes */ 228#define SNDRV_PCM_FORMAT_U18_3BE ((__force snd_pcm_format_t) 43) /* in three bytes */ 229#define SNDRV_PCM_FORMAT_G723_24 ((__force snd_pcm_format_t) 44) /* 8 samples in 3 bytes */ 230#define SNDRV_PCM_FORMAT_G723_24_1B ((__force snd_pcm_format_t) 45) /* 1 sample in 1 byte */ 231#define SNDRV_PCM_FORMAT_G723_40 ((__force snd_pcm_format_t) 46) /* 8 Samples in 5 bytes */ 232#define SNDRV_PCM_FORMAT_G723_40_1B ((__force snd_pcm_format_t) 47) /* 1 sample in 1 byte */ 233#define SNDRV_PCM_FORMAT_DSD_U8 ((__force snd_pcm_format_t) 48) /* DSD, 1-byte samples DSD (x8) */ 234#define SNDRV_PCM_FORMAT_DSD_U16_LE ((__force snd_pcm_format_t) 49) /* DSD, 2-byte samples DSD (x16), little endian */ 235#define SNDRV_PCM_FORMAT_DSD_U32_LE ((__force snd_pcm_format_t) 50) /* DSD, 4-byte samples DSD (x32), little endian */ 236#define SNDRV_PCM_FORMAT_DSD_U16_BE ((__force snd_pcm_format_t) 51) /* DSD, 2-byte samples DSD (x16), big endian */ 237#define SNDRV_PCM_FORMAT_DSD_U32_BE ((__force snd_pcm_format_t) 52) /* DSD, 4-byte samples DSD (x32), big endian */ 238#define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_DSD_U32_BE 239#define SNDRV_PCM_FORMAT_FIRST SNDRV_PCM_FORMAT_S8 240 241#ifdef SNDRV_LITTLE_ENDIAN 242#define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE 243#define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE 244#define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE 245#define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE 246#define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE 247#define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE 248#define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE 249#define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE 250#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE 251#define SNDRV_PCM_FORMAT_S20 SNDRV_PCM_FORMAT_S20_LE 252#define SNDRV_PCM_FORMAT_U20 SNDRV_PCM_FORMAT_U20_LE 253#endif 254#ifdef SNDRV_BIG_ENDIAN 255#define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE 256#define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE 257#define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE 258#define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE 259#define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE 260#define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE 261#define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE 262#define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE 263#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE 264#define SNDRV_PCM_FORMAT_S20 SNDRV_PCM_FORMAT_S20_BE 265#define SNDRV_PCM_FORMAT_U20 SNDRV_PCM_FORMAT_U20_BE 266#endif 267 268typedef int __bitwise snd_pcm_subformat_t; 269#define SNDRV_PCM_SUBFORMAT_STD ((__force snd_pcm_subformat_t) 0) 270#define SNDRV_PCM_SUBFORMAT_MSBITS_MAX ((__force snd_pcm_subformat_t) 1) 271#define SNDRV_PCM_SUBFORMAT_MSBITS_20 ((__force snd_pcm_subformat_t) 2) 272#define SNDRV_PCM_SUBFORMAT_MSBITS_24 ((__force snd_pcm_subformat_t) 3) 273#define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_MSBITS_24 274 275#define SNDRV_PCM_INFO_MMAP 0x00000001 /* hardware supports mmap */ 276#define SNDRV_PCM_INFO_MMAP_VALID 0x00000002 /* period data are valid during transfer */ 277#define SNDRV_PCM_INFO_DOUBLE 0x00000004 /* Double buffering needed for PCM start/stop */ 278#define SNDRV_PCM_INFO_BATCH 0x00000010 /* double buffering */ 279#define SNDRV_PCM_INFO_SYNC_APPLPTR 0x00000020 /* need the explicit sync of appl_ptr update */ 280#define SNDRV_PCM_INFO_PERFECT_DRAIN 0x00000040 /* silencing at the end of stream is not required */ 281#define SNDRV_PCM_INFO_INTERLEAVED 0x00000100 /* channels are interleaved */ 282#define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200 /* channels are not interleaved */ 283#define SNDRV_PCM_INFO_COMPLEX 0x00000400 /* complex frame organization (mmap only) */ 284#define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000 /* hardware transfer block of samples */ 285#define SNDRV_PCM_INFO_OVERRANGE 0x00020000 /* hardware supports ADC (capture) overrange detection */ 286#define SNDRV_PCM_INFO_RESUME 0x00040000 /* hardware supports stream resume after suspend */ 287#define SNDRV_PCM_INFO_PAUSE 0x00080000 /* pause ioctl is supported */ 288#define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000 /* only half duplex */ 289#define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000 /* playback and capture stream are somewhat correlated */ 290#define SNDRV_PCM_INFO_SYNC_START 0x00400000 /* pcm support some kind of sync go */ 291#define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP 0x00800000 /* period wakeup can be disabled */ 292#define SNDRV_PCM_INFO_HAS_WALL_CLOCK 0x01000000 /* (Deprecated)has audio wall clock for audio/system time sync */ 293#define SNDRV_PCM_INFO_HAS_LINK_ATIME 0x01000000 /* report hardware link audio time, reset on startup */ 294#define SNDRV_PCM_INFO_HAS_LINK_ABSOLUTE_ATIME 0x02000000 /* report absolute hardware link audio time, not reset on startup */ 295#define SNDRV_PCM_INFO_HAS_LINK_ESTIMATED_ATIME 0x04000000 /* report estimated link audio time */ 296#define SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME 0x08000000 /* report synchronized audio/system time */ 297#define SNDRV_PCM_INFO_EXPLICIT_SYNC 0x10000000 /* needs explicit sync of pointers and data */ 298#define SNDRV_PCM_INFO_NO_REWINDS 0x20000000 /* hardware can only support monotonic changes of appl_ptr */ 299#define SNDRV_PCM_INFO_DRAIN_TRIGGER 0x40000000 /* internal kernel flag - trigger in drain */ 300#define SNDRV_PCM_INFO_FIFO_IN_FRAMES 0x80000000 /* internal kernel flag - FIFO size is in frames */ 301 302#if (__BITS_PER_LONG == 32 && defined(__USE_TIME_BITS64)) || defined __KERNEL__ 303#define __SND_STRUCT_TIME64 304#endif 305 306typedef int __bitwise snd_pcm_state_t; 307#define SNDRV_PCM_STATE_OPEN ((__force snd_pcm_state_t) 0) /* stream is open */ 308#define SNDRV_PCM_STATE_SETUP ((__force snd_pcm_state_t) 1) /* stream has a setup */ 309#define SNDRV_PCM_STATE_PREPARED ((__force snd_pcm_state_t) 2) /* stream is ready to start */ 310#define SNDRV_PCM_STATE_RUNNING ((__force snd_pcm_state_t) 3) /* stream is running */ 311#define SNDRV_PCM_STATE_XRUN ((__force snd_pcm_state_t) 4) /* stream reached an xrun */ 312#define SNDRV_PCM_STATE_DRAINING ((__force snd_pcm_state_t) 5) /* stream is draining */ 313#define SNDRV_PCM_STATE_PAUSED ((__force snd_pcm_state_t) 6) /* stream is paused */ 314#define SNDRV_PCM_STATE_SUSPENDED ((__force snd_pcm_state_t) 7) /* hardware is suspended */ 315#define SNDRV_PCM_STATE_DISCONNECTED ((__force snd_pcm_state_t) 8) /* hardware is disconnected */ 316#define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED 317 318enum { 319 SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000, 320 SNDRV_PCM_MMAP_OFFSET_STATUS_OLD = 0x80000000, 321 SNDRV_PCM_MMAP_OFFSET_CONTROL_OLD = 0x81000000, 322 SNDRV_PCM_MMAP_OFFSET_STATUS_NEW = 0x82000000, 323 SNDRV_PCM_MMAP_OFFSET_CONTROL_NEW = 0x83000000, 324#ifdef __SND_STRUCT_TIME64 325 SNDRV_PCM_MMAP_OFFSET_STATUS = SNDRV_PCM_MMAP_OFFSET_STATUS_NEW, 326 SNDRV_PCM_MMAP_OFFSET_CONTROL = SNDRV_PCM_MMAP_OFFSET_CONTROL_NEW, 327#else 328 SNDRV_PCM_MMAP_OFFSET_STATUS = SNDRV_PCM_MMAP_OFFSET_STATUS_OLD, 329 SNDRV_PCM_MMAP_OFFSET_CONTROL = SNDRV_PCM_MMAP_OFFSET_CONTROL_OLD, 330#endif 331}; 332 333union snd_pcm_sync_id { 334 unsigned char id[16]; 335 unsigned short id16[8]; 336 unsigned int id32[4]; 337} __attribute__((deprecated)); 338 339struct snd_pcm_info { 340 unsigned int device; /* RO/WR (control): device number */ 341 unsigned int subdevice; /* RO/WR (control): subdevice number */ 342 int stream; /* RO/WR (control): stream direction */ 343 int card; /* R: card number */ 344 unsigned char id[64]; /* ID (user selectable) */ 345 unsigned char name[80]; /* name of this device */ 346 unsigned char subname[32]; /* subdevice name */ 347 int dev_class; /* SNDRV_PCM_CLASS_* */ 348 int dev_subclass; /* SNDRV_PCM_SUBCLASS_* */ 349 unsigned int subdevices_count; 350 unsigned int subdevices_avail; 351 unsigned char pad1[16]; /* was: hardware synchronization ID */ 352 unsigned char reserved[64]; /* reserved for future... */ 353}; 354 355typedef int snd_pcm_hw_param_t; 356#define SNDRV_PCM_HW_PARAM_ACCESS 0 /* Access type */ 357#define SNDRV_PCM_HW_PARAM_FORMAT 1 /* Format */ 358#define SNDRV_PCM_HW_PARAM_SUBFORMAT 2 /* Subformat */ 359#define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS 360#define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT 361 362#define SNDRV_PCM_HW_PARAM_SAMPLE_BITS 8 /* Bits per sample */ 363#define SNDRV_PCM_HW_PARAM_FRAME_BITS 9 /* Bits per frame */ 364#define SNDRV_PCM_HW_PARAM_CHANNELS 10 /* Channels */ 365#define SNDRV_PCM_HW_PARAM_RATE 11 /* Approx rate */ 366#define SNDRV_PCM_HW_PARAM_PERIOD_TIME 12 /* Approx distance between 367 * interrupts in us 368 */ 369#define SNDRV_PCM_HW_PARAM_PERIOD_SIZE 13 /* Approx frames between 370 * interrupts 371 */ 372#define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14 /* Approx bytes between 373 * interrupts 374 */ 375#define SNDRV_PCM_HW_PARAM_PERIODS 15 /* Approx interrupts per 376 * buffer 377 */ 378#define SNDRV_PCM_HW_PARAM_BUFFER_TIME 16 /* Approx duration of buffer 379 * in us 380 */ 381#define SNDRV_PCM_HW_PARAM_BUFFER_SIZE 17 /* Size of buffer in frames */ 382#define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18 /* Size of buffer in bytes */ 383#define SNDRV_PCM_HW_PARAM_TICK_TIME 19 /* Approx tick duration in us */ 384#define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS 385#define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME 386 387#define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0) /* avoid rate resampling */ 388#define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER (1<<1) /* export buffer */ 389#define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP (1<<2) /* disable period wakeups */ 390#define SNDRV_PCM_HW_PARAMS_NO_DRAIN_SILENCE (1<<3) /* suppress drain with the filling 391 * of the silence samples 392 */ 393 394struct snd_interval { 395 unsigned int min, max; 396 unsigned int openmin:1, 397 openmax:1, 398 integer:1, 399 empty:1; 400}; 401 402#define SNDRV_MASK_MAX 256 403 404struct snd_mask { 405 __u32 bits[(SNDRV_MASK_MAX+31)/32]; 406}; 407 408struct snd_pcm_hw_params { 409 unsigned int flags; 410 struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - 411 SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; 412 struct snd_mask mres[5]; /* reserved masks */ 413 struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - 414 SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1]; 415 struct snd_interval ires[9]; /* reserved intervals */ 416 unsigned int rmask; /* W: requested masks */ 417 unsigned int cmask; /* R: changed masks */ 418 unsigned int info; /* R: Info flags for returned setup */ 419 unsigned int msbits; /* R: used most significant bits (in sample bit-width) */ 420 unsigned int rate_num; /* R: rate numerator */ 421 unsigned int rate_den; /* R: rate denominator */ 422 snd_pcm_uframes_t fifo_size; /* R: chip FIFO size in frames */ 423 unsigned char sync[16]; /* R: synchronization ID (perfect sync - one clock source) */ 424 unsigned char reserved[48]; /* reserved for future */ 425}; 426 427enum { 428 SNDRV_PCM_TSTAMP_NONE = 0, 429 SNDRV_PCM_TSTAMP_ENABLE, 430 SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE, 431}; 432 433struct snd_pcm_sw_params { 434 int tstamp_mode; /* timestamp mode */ 435 unsigned int period_step; 436 unsigned int sleep_min; /* min ticks to sleep */ 437 snd_pcm_uframes_t avail_min; /* min avail frames for wakeup */ 438 snd_pcm_uframes_t xfer_align; /* obsolete: xfer size need to be a multiple */ 439 snd_pcm_uframes_t start_threshold; /* min hw_avail frames for automatic start */ 440 /* 441 * The following two thresholds alleviate playback buffer underruns; when 442 * hw_avail drops below the threshold, the respective action is triggered: 443 */ 444 snd_pcm_uframes_t stop_threshold; /* - stop playback */ 445 snd_pcm_uframes_t silence_threshold; /* - pre-fill buffer with silence */ 446 snd_pcm_uframes_t silence_size; /* max size of silence pre-fill; when >= boundary, 447 * fill played area with silence immediately */ 448 snd_pcm_uframes_t boundary; /* pointers wrap point */ 449 unsigned int proto; /* protocol version */ 450 unsigned int tstamp_type; /* timestamp type (req. proto >= 2.0.12) */ 451 unsigned char reserved[56]; /* reserved for future */ 452}; 453 454struct snd_pcm_channel_info { 455 unsigned int channel; 456 __kernel_off_t offset; /* mmap offset */ 457 unsigned int first; /* offset to first sample in bits */ 458 unsigned int step; /* samples distance in bits */ 459}; 460 461enum { 462 /* 463 * first definition for backwards compatibility only, 464 * maps to wallclock/link time for HDAudio playback and DEFAULT/DMA time for everything else 465 */ 466 SNDRV_PCM_AUDIO_TSTAMP_TYPE_COMPAT = 0, 467 468 /* timestamp definitions */ 469 SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT = 1, /* DMA time, reported as per hw_ptr */ 470 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK = 2, /* link time reported by sample or wallclock counter, reset on startup */ 471 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE = 3, /* link time reported by sample or wallclock counter, not reset on startup */ 472 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED = 4, /* link time estimated indirectly */ 473 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED = 5, /* link time synchronized with system time */ 474 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LAST = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED 475}; 476 477#ifndef __KERNEL__ 478/* explicit padding avoids incompatibility between i386 and x86-64 */ 479typedef struct { unsigned char pad[sizeof(time_t) - sizeof(int)]; } __time_pad; 480 481struct snd_pcm_status { 482 snd_pcm_state_t state; /* stream state */ 483 __time_pad pad1; /* align to timespec */ 484 struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */ 485 struct timespec tstamp; /* reference timestamp */ 486 snd_pcm_uframes_t appl_ptr; /* appl ptr */ 487 snd_pcm_uframes_t hw_ptr; /* hw ptr */ 488 snd_pcm_sframes_t delay; /* current delay in frames */ 489 snd_pcm_uframes_t avail; /* number of frames available */ 490 snd_pcm_uframes_t avail_max; /* max frames available on hw since last status */ 491 snd_pcm_uframes_t overrange; /* count of ADC (capture) overrange detections from last status */ 492 snd_pcm_state_t suspended_state; /* suspended stream state */ 493 __u32 audio_tstamp_data; /* needed for 64-bit alignment, used for configs/report to/from userspace */ 494 struct timespec audio_tstamp; /* sample counter, wall clock, PHC or on-demand sync'ed */ 495 struct timespec driver_tstamp; /* useful in case reference system tstamp is reported with delay */ 496 __u32 audio_tstamp_accuracy; /* in ns units, only valid if indicated in audio_tstamp_data */ 497 unsigned char reserved[52-2*sizeof(struct timespec)]; /* must be filled with zero */ 498}; 499#endif 500 501/* 502 * For mmap operations, we need the 64-bit layout, both for compat mode, 503 * and for y2038 compatibility. For 64-bit applications, the two definitions 504 * are identical, so we keep the traditional version. 505 */ 506#ifdef __SND_STRUCT_TIME64 507#define __snd_pcm_mmap_status64 snd_pcm_mmap_status 508#define __snd_pcm_mmap_control64 snd_pcm_mmap_control 509#define __snd_pcm_sync_ptr64 snd_pcm_sync_ptr 510#ifdef __KERNEL__ 511#define __snd_timespec64 __kernel_timespec 512#else 513#define __snd_timespec64 timespec 514#endif 515struct __snd_timespec { 516 __s32 tv_sec; 517 __s32 tv_nsec; 518}; 519#else 520#define __snd_pcm_mmap_status snd_pcm_mmap_status 521#define __snd_pcm_mmap_control snd_pcm_mmap_control 522#define __snd_pcm_sync_ptr snd_pcm_sync_ptr 523#define __snd_timespec timespec 524struct __snd_timespec64 { 525 __s64 tv_sec; 526 __s64 tv_nsec; 527}; 528 529#endif 530 531struct __snd_pcm_mmap_status { 532 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */ 533 int pad1; /* Needed for 64 bit alignment */ 534 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */ 535 struct __snd_timespec tstamp; /* Timestamp */ 536 snd_pcm_state_t suspended_state; /* RO: suspended stream state */ 537 struct __snd_timespec audio_tstamp; /* from sample counter or wall clock */ 538}; 539 540struct __snd_pcm_mmap_control { 541 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */ 542 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */ 543}; 544 545#define SNDRV_PCM_SYNC_PTR_HWSYNC (1<<0) /* execute hwsync */ 546#define SNDRV_PCM_SYNC_PTR_APPL (1<<1) /* get appl_ptr from driver (r/w op) */ 547#define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1<<2) /* get avail_min from driver */ 548 549struct __snd_pcm_sync_ptr { 550 unsigned int flags; 551 union { 552 struct __snd_pcm_mmap_status status; 553 unsigned char reserved[64]; 554 } s; 555 union { 556 struct __snd_pcm_mmap_control control; 557 unsigned char reserved[64]; 558 } c; 559}; 560 561#if defined(__BYTE_ORDER) ? __BYTE_ORDER == __BIG_ENDIAN : defined(__BIG_ENDIAN) 562typedef char __pad_before_uframe[sizeof(__u64) - sizeof(snd_pcm_uframes_t)]; 563typedef char __pad_after_uframe[0]; 564#endif 565 566#if defined(__BYTE_ORDER) ? __BYTE_ORDER == __LITTLE_ENDIAN : defined(__LITTLE_ENDIAN) 567typedef char __pad_before_uframe[0]; 568typedef char __pad_after_uframe[sizeof(__u64) - sizeof(snd_pcm_uframes_t)]; 569#endif 570 571struct __snd_pcm_mmap_status64 { 572 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */ 573 __u32 pad1; /* Needed for 64 bit alignment */ 574 __pad_before_uframe __pad1; 575 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */ 576 __pad_after_uframe __pad2; 577 struct __snd_timespec64 tstamp; /* Timestamp */ 578 snd_pcm_state_t suspended_state;/* RO: suspended stream state */ 579 __u32 pad3; /* Needed for 64 bit alignment */ 580 struct __snd_timespec64 audio_tstamp; /* sample counter or wall clock */ 581}; 582 583struct __snd_pcm_mmap_control64 { 584 __pad_before_uframe __pad1; 585 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */ 586 __pad_before_uframe __pad2; // This should be __pad_after_uframe, but binary 587 // backwards compatibility constraints prevent a fix. 588 589 __pad_before_uframe __pad3; 590 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */ 591 __pad_after_uframe __pad4; 592}; 593 594struct __snd_pcm_sync_ptr64 { 595 __u32 flags; 596 __u32 pad1; 597 union { 598 struct __snd_pcm_mmap_status64 status; 599 unsigned char reserved[64]; 600 } s; 601 union { 602 struct __snd_pcm_mmap_control64 control; 603 unsigned char reserved[64]; 604 } c; 605}; 606 607struct snd_xferi { 608 snd_pcm_sframes_t result; 609 void __user *buf; 610 snd_pcm_uframes_t frames; 611}; 612 613struct snd_xfern { 614 snd_pcm_sframes_t result; 615 void __user * __user *bufs; 616 snd_pcm_uframes_t frames; 617}; 618 619enum { 620 SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0, /* gettimeofday equivalent */ 621 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, /* posix_clock_monotonic equivalent */ 622 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW, /* monotonic_raw (no NTP) */ 623 SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW, 624}; 625 626/* channel positions */ 627enum { 628 SNDRV_CHMAP_UNKNOWN = 0, 629 SNDRV_CHMAP_NA, /* N/A, silent */ 630 SNDRV_CHMAP_MONO, /* mono stream */ 631 /* this follows the alsa-lib mixer channel value + 3 */ 632 SNDRV_CHMAP_FL, /* front left */ 633 SNDRV_CHMAP_FR, /* front right */ 634 SNDRV_CHMAP_RL, /* rear left */ 635 SNDRV_CHMAP_RR, /* rear right */ 636 SNDRV_CHMAP_FC, /* front center */ 637 SNDRV_CHMAP_LFE, /* LFE */ 638 SNDRV_CHMAP_SL, /* side left */ 639 SNDRV_CHMAP_SR, /* side right */ 640 SNDRV_CHMAP_RC, /* rear center */ 641 /* new definitions */ 642 SNDRV_CHMAP_FLC, /* front left center */ 643 SNDRV_CHMAP_FRC, /* front right center */ 644 SNDRV_CHMAP_RLC, /* rear left center */ 645 SNDRV_CHMAP_RRC, /* rear right center */ 646 SNDRV_CHMAP_FLW, /* front left wide */ 647 SNDRV_CHMAP_FRW, /* front right wide */ 648 SNDRV_CHMAP_FLH, /* front left high */ 649 SNDRV_CHMAP_FCH, /* front center high */ 650 SNDRV_CHMAP_FRH, /* front right high */ 651 SNDRV_CHMAP_TC, /* top center */ 652 SNDRV_CHMAP_TFL, /* top front left */ 653 SNDRV_CHMAP_TFR, /* top front right */ 654 SNDRV_CHMAP_TFC, /* top front center */ 655 SNDRV_CHMAP_TRL, /* top rear left */ 656 SNDRV_CHMAP_TRR, /* top rear right */ 657 SNDRV_CHMAP_TRC, /* top rear center */ 658 /* new definitions for UAC2 */ 659 SNDRV_CHMAP_TFLC, /* top front left center */ 660 SNDRV_CHMAP_TFRC, /* top front right center */ 661 SNDRV_CHMAP_TSL, /* top side left */ 662 SNDRV_CHMAP_TSR, /* top side right */ 663 SNDRV_CHMAP_LLFE, /* left LFE */ 664 SNDRV_CHMAP_RLFE, /* right LFE */ 665 SNDRV_CHMAP_BC, /* bottom center */ 666 SNDRV_CHMAP_BLC, /* bottom left center */ 667 SNDRV_CHMAP_BRC, /* bottom right center */ 668 SNDRV_CHMAP_LAST = SNDRV_CHMAP_BRC, 669}; 670 671#define SNDRV_CHMAP_POSITION_MASK 0xffff 672#define SNDRV_CHMAP_PHASE_INVERSE (0x01 << 16) 673#define SNDRV_CHMAP_DRIVER_SPEC (0x02 << 16) 674 675#define SNDRV_PCM_IOCTL_PVERSION _IOR('A', 0x00, int) 676#define SNDRV_PCM_IOCTL_INFO _IOR('A', 0x01, struct snd_pcm_info) 677#define SNDRV_PCM_IOCTL_TSTAMP _IOW('A', 0x02, int) 678#define SNDRV_PCM_IOCTL_TTSTAMP _IOW('A', 0x03, int) 679#define SNDRV_PCM_IOCTL_USER_PVERSION _IOW('A', 0x04, int) 680#define SNDRV_PCM_IOCTL_HW_REFINE _IOWR('A', 0x10, struct snd_pcm_hw_params) 681#define SNDRV_PCM_IOCTL_HW_PARAMS _IOWR('A', 0x11, struct snd_pcm_hw_params) 682#define SNDRV_PCM_IOCTL_HW_FREE _IO('A', 0x12) 683#define SNDRV_PCM_IOCTL_SW_PARAMS _IOWR('A', 0x13, struct snd_pcm_sw_params) 684#define SNDRV_PCM_IOCTL_STATUS _IOR('A', 0x20, struct snd_pcm_status) 685#define SNDRV_PCM_IOCTL_DELAY _IOR('A', 0x21, snd_pcm_sframes_t) 686#define SNDRV_PCM_IOCTL_HWSYNC _IO('A', 0x22) 687#define __SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct __snd_pcm_sync_ptr) 688#define __SNDRV_PCM_IOCTL_SYNC_PTR64 _IOWR('A', 0x23, struct __snd_pcm_sync_ptr64) 689#define SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct snd_pcm_sync_ptr) 690#define SNDRV_PCM_IOCTL_STATUS_EXT _IOWR('A', 0x24, struct snd_pcm_status) 691#define SNDRV_PCM_IOCTL_CHANNEL_INFO _IOR('A', 0x32, struct snd_pcm_channel_info) 692#define SNDRV_PCM_IOCTL_PREPARE _IO('A', 0x40) 693#define SNDRV_PCM_IOCTL_RESET _IO('A', 0x41) 694#define SNDRV_PCM_IOCTL_START _IO('A', 0x42) 695#define SNDRV_PCM_IOCTL_DROP _IO('A', 0x43) 696#define SNDRV_PCM_IOCTL_DRAIN _IO('A', 0x44) 697#define SNDRV_PCM_IOCTL_PAUSE _IOW('A', 0x45, int) 698#define SNDRV_PCM_IOCTL_REWIND _IOW('A', 0x46, snd_pcm_uframes_t) 699#define SNDRV_PCM_IOCTL_RESUME _IO('A', 0x47) 700#define SNDRV_PCM_IOCTL_XRUN _IO('A', 0x48) 701#define SNDRV_PCM_IOCTL_FORWARD _IOW('A', 0x49, snd_pcm_uframes_t) 702#define SNDRV_PCM_IOCTL_WRITEI_FRAMES _IOW('A', 0x50, struct snd_xferi) 703#define SNDRV_PCM_IOCTL_READI_FRAMES _IOR('A', 0x51, struct snd_xferi) 704#define SNDRV_PCM_IOCTL_WRITEN_FRAMES _IOW('A', 0x52, struct snd_xfern) 705#define SNDRV_PCM_IOCTL_READN_FRAMES _IOR('A', 0x53, struct snd_xfern) 706#define SNDRV_PCM_IOCTL_LINK _IOW('A', 0x60, int) 707#define SNDRV_PCM_IOCTL_UNLINK _IO('A', 0x61) 708 709/***************************************************************************** 710 * * 711 * MIDI v1.0 interface * 712 * * 713 *****************************************************************************/ 714 715/* 716 * Raw MIDI section - /dev/snd/midi?? 717 */ 718 719#define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 5) 720 721enum { 722 SNDRV_RAWMIDI_STREAM_OUTPUT = 0, 723 SNDRV_RAWMIDI_STREAM_INPUT, 724 SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT, 725}; 726 727#define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001 728#define SNDRV_RAWMIDI_INFO_INPUT 0x00000002 729#define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004 730#define SNDRV_RAWMIDI_INFO_UMP 0x00000008 731#define SNDRV_RAWMIDI_INFO_STREAM_INACTIVE 0x00000010 732 733#define SNDRV_RAWMIDI_DEVICE_UNKNOWN 0 734 735struct snd_rawmidi_info { 736 unsigned int device; /* RO/WR (control): device number */ 737 unsigned int subdevice; /* RO/WR (control): subdevice number */ 738 int stream; /* WR: stream */ 739 int card; /* R: card number */ 740 unsigned int flags; /* SNDRV_RAWMIDI_INFO_XXXX */ 741 unsigned char id[64]; /* ID (user selectable) */ 742 unsigned char name[80]; /* name of device */ 743 unsigned char subname[32]; /* name of active or selected subdevice */ 744 unsigned int subdevices_count; 745 unsigned int subdevices_avail; 746 int tied_device; /* R: tied rawmidi device (UMP/legacy) */ 747 unsigned char reserved[60]; /* reserved for future use */ 748}; 749 750#define SNDRV_RAWMIDI_MODE_FRAMING_MASK (7<<0) 751#define SNDRV_RAWMIDI_MODE_FRAMING_SHIFT 0 752#define SNDRV_RAWMIDI_MODE_FRAMING_NONE (0<<0) 753#define SNDRV_RAWMIDI_MODE_FRAMING_TSTAMP (1<<0) 754#define SNDRV_RAWMIDI_MODE_CLOCK_MASK (7<<3) 755#define SNDRV_RAWMIDI_MODE_CLOCK_SHIFT 3 756#define SNDRV_RAWMIDI_MODE_CLOCK_NONE (0<<3) 757#define SNDRV_RAWMIDI_MODE_CLOCK_REALTIME (1<<3) 758#define SNDRV_RAWMIDI_MODE_CLOCK_MONOTONIC (2<<3) 759#define SNDRV_RAWMIDI_MODE_CLOCK_MONOTONIC_RAW (3<<3) 760 761#define SNDRV_RAWMIDI_FRAMING_DATA_LENGTH 16 762 763struct snd_rawmidi_framing_tstamp { 764 /* For now, frame_type is always 0. Midi 2.0 is expected to add new 765 * types here. Applications are expected to skip unknown frame types. 766 */ 767 __u8 frame_type; 768 __u8 length; /* number of valid bytes in data field */ 769 __u8 reserved[2]; 770 __u32 tv_nsec; /* nanoseconds */ 771 __u64 tv_sec; /* seconds */ 772 __u8 data[SNDRV_RAWMIDI_FRAMING_DATA_LENGTH]; 773} __packed; 774 775struct snd_rawmidi_params { 776 int stream; 777 size_t buffer_size; /* queue size in bytes */ 778 size_t avail_min; /* minimum avail bytes for wakeup */ 779 unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */ 780 unsigned int mode; /* For input data only, frame incoming data */ 781 unsigned char reserved[12]; /* reserved for future use */ 782}; 783 784#ifndef __KERNEL__ 785struct snd_rawmidi_status { 786 int stream; 787 __time_pad pad1; 788 struct timespec tstamp; /* Timestamp */ 789 size_t avail; /* available bytes */ 790 size_t xruns; /* count of overruns since last status (in bytes) */ 791 unsigned char reserved[16]; /* reserved for future use */ 792}; 793#endif 794 795/* UMP EP info flags */ 796#define SNDRV_UMP_EP_INFO_STATIC_BLOCKS 0x01 797 798/* UMP EP Protocol / JRTS capability bits */ 799#define SNDRV_UMP_EP_INFO_PROTO_MIDI_MASK 0x0300 800#define SNDRV_UMP_EP_INFO_PROTO_MIDI1 0x0100 /* MIDI 1.0 */ 801#define SNDRV_UMP_EP_INFO_PROTO_MIDI2 0x0200 /* MIDI 2.0 */ 802#define SNDRV_UMP_EP_INFO_PROTO_JRTS_MASK 0x0003 803#define SNDRV_UMP_EP_INFO_PROTO_JRTS_TX 0x0001 /* JRTS Transmit */ 804#define SNDRV_UMP_EP_INFO_PROTO_JRTS_RX 0x0002 /* JRTS Receive */ 805 806/* UMP Endpoint information */ 807struct snd_ump_endpoint_info { 808 int card; /* card number */ 809 int device; /* device number */ 810 unsigned int flags; /* additional info */ 811 unsigned int protocol_caps; /* protocol capabilities */ 812 unsigned int protocol; /* current protocol */ 813 unsigned int num_blocks; /* # of function blocks */ 814 unsigned short version; /* UMP major/minor version */ 815 unsigned short family_id; /* MIDI device family ID */ 816 unsigned short model_id; /* MIDI family model ID */ 817 unsigned int manufacturer_id; /* MIDI manufacturer ID */ 818 unsigned char sw_revision[4]; /* software revision */ 819 unsigned short padding; 820 unsigned char name[128]; /* endpoint name string */ 821 unsigned char product_id[128]; /* unique product id string */ 822 unsigned char reserved[32]; 823} __packed; 824 825/* UMP direction */ 826#define SNDRV_UMP_DIR_INPUT 0x01 827#define SNDRV_UMP_DIR_OUTPUT 0x02 828#define SNDRV_UMP_DIR_BIDIRECTION 0x03 829 830/* UMP block info flags */ 831#define SNDRV_UMP_BLOCK_IS_MIDI1 (1U << 0) /* MIDI 1.0 port w/o restrict */ 832#define SNDRV_UMP_BLOCK_IS_LOWSPEED (1U << 1) /* 31.25Kbps B/W MIDI1 port */ 833 834/* UMP block user-interface hint */ 835#define SNDRV_UMP_BLOCK_UI_HINT_UNKNOWN 0x00 836#define SNDRV_UMP_BLOCK_UI_HINT_RECEIVER 0x01 837#define SNDRV_UMP_BLOCK_UI_HINT_SENDER 0x02 838#define SNDRV_UMP_BLOCK_UI_HINT_BOTH 0x03 839 840/* UMP groups and blocks */ 841#define SNDRV_UMP_MAX_GROUPS 16 842#define SNDRV_UMP_MAX_BLOCKS 32 843 844/* UMP Block information */ 845struct snd_ump_block_info { 846 int card; /* card number */ 847 int device; /* device number */ 848 unsigned char block_id; /* block ID (R/W) */ 849 unsigned char direction; /* UMP direction */ 850 unsigned char active; /* Activeness */ 851 unsigned char first_group; /* first group ID */ 852 unsigned char num_groups; /* number of groups */ 853 unsigned char midi_ci_version; /* MIDI-CI support version */ 854 unsigned char sysex8_streams; /* max number of sysex8 streams */ 855 unsigned char ui_hint; /* user interface hint */ 856 unsigned int flags; /* various info flags */ 857 unsigned char name[128]; /* block name string */ 858 unsigned char reserved[32]; 859} __packed; 860 861#define SNDRV_RAWMIDI_IOCTL_PVERSION _IOR('W', 0x00, int) 862#define SNDRV_RAWMIDI_IOCTL_INFO _IOR('W', 0x01, struct snd_rawmidi_info) 863#define SNDRV_RAWMIDI_IOCTL_USER_PVERSION _IOW('W', 0x02, int) 864#define SNDRV_RAWMIDI_IOCTL_PARAMS _IOWR('W', 0x10, struct snd_rawmidi_params) 865#define SNDRV_RAWMIDI_IOCTL_STATUS _IOWR('W', 0x20, struct snd_rawmidi_status) 866#define SNDRV_RAWMIDI_IOCTL_DROP _IOW('W', 0x30, int) 867#define SNDRV_RAWMIDI_IOCTL_DRAIN _IOW('W', 0x31, int) 868/* Additional ioctls for UMP rawmidi devices */ 869#define SNDRV_UMP_IOCTL_ENDPOINT_INFO _IOR('W', 0x40, struct snd_ump_endpoint_info) 870#define SNDRV_UMP_IOCTL_BLOCK_INFO _IOR('W', 0x41, struct snd_ump_block_info) 871 872/* 873 * Timer section - /dev/snd/timer 874 */ 875 876#define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 8) 877 878enum { 879 SNDRV_TIMER_CLASS_NONE = -1, 880 SNDRV_TIMER_CLASS_SLAVE = 0, 881 SNDRV_TIMER_CLASS_GLOBAL, 882 SNDRV_TIMER_CLASS_CARD, 883 SNDRV_TIMER_CLASS_PCM, 884 SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM, 885}; 886 887/* slave timer classes */ 888enum { 889 SNDRV_TIMER_SCLASS_NONE = 0, 890 SNDRV_TIMER_SCLASS_APPLICATION, 891 SNDRV_TIMER_SCLASS_SEQUENCER, /* alias */ 892 SNDRV_TIMER_SCLASS_OSS_SEQUENCER, /* alias */ 893 SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER, 894}; 895 896/* global timers (device member) */ 897#define SNDRV_TIMER_GLOBAL_SYSTEM 0 898#define SNDRV_TIMER_GLOBAL_RTC 1 /* unused */ 899#define SNDRV_TIMER_GLOBAL_HPET 2 900#define SNDRV_TIMER_GLOBAL_HRTIMER 3 901#define SNDRV_TIMER_GLOBAL_UDRIVEN 4 902 903/* info flags */ 904#define SNDRV_TIMER_FLG_SLAVE (1<<0) /* cannot be controlled */ 905 906struct snd_timer_id { 907 int dev_class; 908 int dev_sclass; 909 int card; 910 int device; 911 int subdevice; 912}; 913 914struct snd_timer_ginfo { 915 struct snd_timer_id tid; /* requested timer ID */ 916 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 917 int card; /* card number */ 918 unsigned char id[64]; /* timer identification */ 919 unsigned char name[80]; /* timer name */ 920 unsigned long reserved0; /* reserved for future use */ 921 unsigned long resolution; /* average period resolution in ns */ 922 unsigned long resolution_min; /* minimal period resolution in ns */ 923 unsigned long resolution_max; /* maximal period resolution in ns */ 924 unsigned int clients; /* active timer clients */ 925 unsigned char reserved[32]; 926}; 927 928struct snd_timer_gparams { 929 struct snd_timer_id tid; /* requested timer ID */ 930 unsigned long period_num; /* requested precise period duration (in seconds) - numerator */ 931 unsigned long period_den; /* requested precise period duration (in seconds) - denominator */ 932 unsigned char reserved[32]; 933}; 934 935struct snd_timer_gstatus { 936 struct snd_timer_id tid; /* requested timer ID */ 937 unsigned long resolution; /* current period resolution in ns */ 938 unsigned long resolution_num; /* precise current period resolution (in seconds) - numerator */ 939 unsigned long resolution_den; /* precise current period resolution (in seconds) - denominator */ 940 unsigned char reserved[32]; 941}; 942 943struct snd_timer_select { 944 struct snd_timer_id id; /* bind to timer ID */ 945 unsigned char reserved[32]; /* reserved */ 946}; 947 948struct snd_timer_info { 949 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 950 int card; /* card number */ 951 unsigned char id[64]; /* timer identificator */ 952 unsigned char name[80]; /* timer name */ 953 unsigned long reserved0; /* reserved for future use */ 954 unsigned long resolution; /* average period resolution in ns */ 955 unsigned char reserved[64]; /* reserved */ 956}; 957 958#define SNDRV_TIMER_PSFLG_AUTO (1<<0) /* auto start, otherwise one-shot */ 959#define SNDRV_TIMER_PSFLG_EXCLUSIVE (1<<1) /* exclusive use, precise start/stop/pause/continue */ 960#define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2) /* write early event to the poll queue */ 961 962struct snd_timer_params { 963 unsigned int flags; /* flags - SNDRV_TIMER_PSFLG_* */ 964 unsigned int ticks; /* requested resolution in ticks */ 965 unsigned int queue_size; /* total size of queue (32-1024) */ 966 unsigned int reserved0; /* reserved, was: failure locations */ 967 unsigned int filter; /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */ 968 unsigned char reserved[60]; /* reserved */ 969}; 970 971#ifndef __KERNEL__ 972struct snd_timer_status { 973 struct timespec tstamp; /* Timestamp - last update */ 974 unsigned int resolution; /* current period resolution in ns */ 975 unsigned int lost; /* counter of master tick lost */ 976 unsigned int overrun; /* count of read queue overruns */ 977 unsigned int queue; /* used queue size */ 978 unsigned char reserved[64]; /* reserved */ 979}; 980#endif 981 982/* 983 * This structure describes the userspace-driven timer. Such timers are purely virtual, 984 * and can only be triggered from software (for instance, by userspace application). 985 */ 986struct snd_timer_uinfo { 987 /* To pretend being a normal timer, we need to know the resolution in ns. */ 988 __u64 resolution; 989 int fd; 990 unsigned int id; 991 unsigned char reserved[16]; 992}; 993 994#define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int) 995#define SNDRV_TIMER_IOCTL_NEXT_DEVICE _IOWR('T', 0x01, struct snd_timer_id) 996#define SNDRV_TIMER_IOCTL_TREAD_OLD _IOW('T', 0x02, int) 997#define SNDRV_TIMER_IOCTL_GINFO _IOWR('T', 0x03, struct snd_timer_ginfo) 998#define SNDRV_TIMER_IOCTL_GPARAMS _IOW('T', 0x04, struct snd_timer_gparams) 999#define SNDRV_TIMER_IOCTL_GSTATUS _IOWR('T', 0x05, struct snd_timer_gstatus) 1000#define SNDRV_TIMER_IOCTL_SELECT _IOW('T', 0x10, struct snd_timer_select) 1001#define SNDRV_TIMER_IOCTL_INFO _IOR('T', 0x11, struct snd_timer_info) 1002#define SNDRV_TIMER_IOCTL_PARAMS _IOW('T', 0x12, struct snd_timer_params) 1003#define SNDRV_TIMER_IOCTL_STATUS _IOR('T', 0x14, struct snd_timer_status) 1004/* The following four ioctls are changed since 1.0.9 due to confliction */ 1005#define SNDRV_TIMER_IOCTL_START _IO('T', 0xa0) 1006#define SNDRV_TIMER_IOCTL_STOP _IO('T', 0xa1) 1007#define SNDRV_TIMER_IOCTL_CONTINUE _IO('T', 0xa2) 1008#define SNDRV_TIMER_IOCTL_PAUSE _IO('T', 0xa3) 1009#define SNDRV_TIMER_IOCTL_TREAD64 _IOW('T', 0xa4, int) 1010#define SNDRV_TIMER_IOCTL_CREATE _IOWR('T', 0xa5, struct snd_timer_uinfo) 1011#define SNDRV_TIMER_IOCTL_TRIGGER _IO('T', 0xa6) 1012 1013#if __BITS_PER_LONG == 64 1014#define SNDRV_TIMER_IOCTL_TREAD SNDRV_TIMER_IOCTL_TREAD_OLD 1015#else 1016#define SNDRV_TIMER_IOCTL_TREAD ((sizeof(__kernel_long_t) >= sizeof(time_t)) ? \ 1017 SNDRV_TIMER_IOCTL_TREAD_OLD : \ 1018 SNDRV_TIMER_IOCTL_TREAD64) 1019#endif 1020 1021struct snd_timer_read { 1022 unsigned int resolution; 1023 unsigned int ticks; 1024}; 1025 1026enum { 1027 SNDRV_TIMER_EVENT_RESOLUTION = 0, /* val = resolution in ns */ 1028 SNDRV_TIMER_EVENT_TICK, /* val = ticks */ 1029 SNDRV_TIMER_EVENT_START, /* val = resolution in ns */ 1030 SNDRV_TIMER_EVENT_STOP, /* val = 0 */ 1031 SNDRV_TIMER_EVENT_CONTINUE, /* val = resolution in ns */ 1032 SNDRV_TIMER_EVENT_PAUSE, /* val = 0 */ 1033 SNDRV_TIMER_EVENT_EARLY, /* val = 0, early event */ 1034 SNDRV_TIMER_EVENT_SUSPEND, /* val = 0 */ 1035 SNDRV_TIMER_EVENT_RESUME, /* val = resolution in ns */ 1036 /* master timer events for slave timer instances */ 1037 SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10, 1038 SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10, 1039 SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10, 1040 SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10, 1041 SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10, 1042 SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10, 1043}; 1044 1045#ifndef __KERNEL__ 1046struct snd_timer_tread { 1047 int event; 1048 __time_pad pad1; 1049 struct timespec tstamp; 1050 unsigned int val; 1051 __time_pad pad2; 1052}; 1053#endif 1054 1055/**************************************************************************** 1056 * * 1057 * Section for driver control interface - /dev/snd/control? * 1058 * * 1059 ****************************************************************************/ 1060 1061#define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 9) 1062 1063struct snd_ctl_card_info { 1064 int card; /* card number */ 1065 int pad; /* reserved for future (was type) */ 1066 unsigned char id[16]; /* ID of card (user selectable) */ 1067 unsigned char driver[16]; /* Driver name */ 1068 unsigned char name[32]; /* Short name of soundcard */ 1069 unsigned char longname[80]; /* name + info text about soundcard */ 1070 unsigned char reserved_[16]; /* reserved for future (was ID of mixer) */ 1071 unsigned char mixername[80]; /* visual mixer identification */ 1072 unsigned char components[128]; /* card components / fine identification, delimited with one space (AC97 etc..) */ 1073}; 1074 1075typedef int __bitwise snd_ctl_elem_type_t; 1076#define SNDRV_CTL_ELEM_TYPE_NONE ((__force snd_ctl_elem_type_t) 0) /* invalid */ 1077#define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1) /* boolean type */ 1078#define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2) /* integer type */ 1079#define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((__force snd_ctl_elem_type_t) 3) /* enumerated type */ 1080#define SNDRV_CTL_ELEM_TYPE_BYTES ((__force snd_ctl_elem_type_t) 4) /* byte array */ 1081#define SNDRV_CTL_ELEM_TYPE_IEC958 ((__force snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */ 1082#define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((__force snd_ctl_elem_type_t) 6) /* 64-bit integer type */ 1083#define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64 1084 1085typedef int __bitwise snd_ctl_elem_iface_t; 1086#define SNDRV_CTL_ELEM_IFACE_CARD ((__force snd_ctl_elem_iface_t) 0) /* global control */ 1087#define SNDRV_CTL_ELEM_IFACE_HWDEP ((__force snd_ctl_elem_iface_t) 1) /* hardware dependent device */ 1088#define SNDRV_CTL_ELEM_IFACE_MIXER ((__force snd_ctl_elem_iface_t) 2) /* virtual mixer device */ 1089#define SNDRV_CTL_ELEM_IFACE_PCM ((__force snd_ctl_elem_iface_t) 3) /* PCM device */ 1090#define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((__force snd_ctl_elem_iface_t) 4) /* RawMidi device */ 1091#define SNDRV_CTL_ELEM_IFACE_TIMER ((__force snd_ctl_elem_iface_t) 5) /* timer device */ 1092#define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((__force snd_ctl_elem_iface_t) 6) /* sequencer client */ 1093#define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER 1094 1095#define SNDRV_CTL_ELEM_ACCESS_READ (1<<0) 1096#define SNDRV_CTL_ELEM_ACCESS_WRITE (1<<1) 1097#define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE) 1098#define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1<<2) /* control value may be changed without a notification */ 1099/* (1 << 3) is unused. */ 1100#define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1<<4) /* TLV read is possible */ 1101#define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1<<5) /* TLV write is possible */ 1102#define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) 1103#define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1<<6) /* TLV command is possible */ 1104#define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) /* control does actually nothing, but may be updated */ 1105#define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) /* write lock */ 1106#define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) /* write lock owner */ 1107#define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1<<28) /* kernel use a TLV callback */ 1108#define SNDRV_CTL_ELEM_ACCESS_USER (1<<29) /* user space element */ 1109/* bits 30 and 31 are obsoleted (for indirect access) */ 1110 1111/* for further details see the ACPI and PCI power management specification */ 1112#define SNDRV_CTL_POWER_D0 0x0000 /* full On */ 1113#define SNDRV_CTL_POWER_D1 0x0100 /* partial On */ 1114#define SNDRV_CTL_POWER_D2 0x0200 /* partial On */ 1115#define SNDRV_CTL_POWER_D3 0x0300 /* Off */ 1116#define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) /* Off, with power */ 1117#define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) /* Off, without power */ 1118 1119#define SNDRV_CTL_ELEM_ID_NAME_MAXLEN 44 1120 1121struct snd_ctl_elem_id { 1122 unsigned int numid; /* numeric identifier, zero = invalid */ 1123 snd_ctl_elem_iface_t iface; /* interface identifier */ 1124 unsigned int device; /* device/client number */ 1125 unsigned int subdevice; /* subdevice (substream) number */ 1126 unsigned char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* ASCII name of item */ 1127 unsigned int index; /* index of item */ 1128}; 1129 1130struct snd_ctl_elem_list { 1131 unsigned int offset; /* W: first element ID to get */ 1132 unsigned int space; /* W: count of element IDs to get */ 1133 unsigned int used; /* R: count of element IDs set */ 1134 unsigned int count; /* R: count of all elements */ 1135 struct snd_ctl_elem_id __user *pids; /* R: IDs */ 1136 unsigned char reserved[50]; 1137}; 1138 1139struct snd_ctl_elem_info { 1140 struct snd_ctl_elem_id id; /* W: element ID */ 1141 snd_ctl_elem_type_t type; /* R: value type - SNDRV_CTL_ELEM_TYPE_* */ 1142 unsigned int access; /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */ 1143 unsigned int count; /* count of values */ 1144 __kernel_pid_t owner; /* owner's PID of this control */ 1145 union { 1146 struct { 1147 long min; /* R: minimum value */ 1148 long max; /* R: maximum value */ 1149 long step; /* R: step (0 variable) */ 1150 } integer; 1151 struct { 1152 long long min; /* R: minimum value */ 1153 long long max; /* R: maximum value */ 1154 long long step; /* R: step (0 variable) */ 1155 } integer64; 1156 struct { 1157 unsigned int items; /* R: number of items */ 1158 unsigned int item; /* W: item number */ 1159 char name[64]; /* R: value name */ 1160 __u64 names_ptr; /* W: names list (ELEM_ADD only) */ 1161 unsigned int names_length; 1162 } enumerated; 1163 unsigned char reserved[128]; 1164 } value; 1165 unsigned char reserved[64]; 1166}; 1167 1168struct snd_ctl_elem_value { 1169 struct snd_ctl_elem_id id; /* W: element ID */ 1170 unsigned int indirect: 1; /* W: indirect access - obsoleted */ 1171 union { 1172 union { 1173 long value[128]; 1174 long *value_ptr; /* obsoleted */ 1175 } integer; 1176 union { 1177 long long value[64]; 1178 long long *value_ptr; /* obsoleted */ 1179 } integer64; 1180 union { 1181 unsigned int item[128]; 1182 unsigned int *item_ptr; /* obsoleted */ 1183 } enumerated; 1184 union { 1185 unsigned char data[512]; 1186 unsigned char *data_ptr; /* obsoleted */ 1187 } bytes; 1188 struct snd_aes_iec958 iec958; 1189 } value; /* RO */ 1190 unsigned char reserved[128]; 1191}; 1192 1193struct snd_ctl_tlv { 1194 unsigned int numid; /* control element numeric identification */ 1195 unsigned int length; /* in bytes aligned to 4 */ 1196 unsigned int tlv[]; /* first TLV */ 1197}; 1198 1199#define SNDRV_CTL_IOCTL_PVERSION _IOR('U', 0x00, int) 1200#define SNDRV_CTL_IOCTL_CARD_INFO _IOR('U', 0x01, struct snd_ctl_card_info) 1201#define SNDRV_CTL_IOCTL_ELEM_LIST _IOWR('U', 0x10, struct snd_ctl_elem_list) 1202#define SNDRV_CTL_IOCTL_ELEM_INFO _IOWR('U', 0x11, struct snd_ctl_elem_info) 1203#define SNDRV_CTL_IOCTL_ELEM_READ _IOWR('U', 0x12, struct snd_ctl_elem_value) 1204#define SNDRV_CTL_IOCTL_ELEM_WRITE _IOWR('U', 0x13, struct snd_ctl_elem_value) 1205#define SNDRV_CTL_IOCTL_ELEM_LOCK _IOW('U', 0x14, struct snd_ctl_elem_id) 1206#define SNDRV_CTL_IOCTL_ELEM_UNLOCK _IOW('U', 0x15, struct snd_ctl_elem_id) 1207#define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int) 1208#define SNDRV_CTL_IOCTL_ELEM_ADD _IOWR('U', 0x17, struct snd_ctl_elem_info) 1209#define SNDRV_CTL_IOCTL_ELEM_REPLACE _IOWR('U', 0x18, struct snd_ctl_elem_info) 1210#define SNDRV_CTL_IOCTL_ELEM_REMOVE _IOWR('U', 0x19, struct snd_ctl_elem_id) 1211#define SNDRV_CTL_IOCTL_TLV_READ _IOWR('U', 0x1a, struct snd_ctl_tlv) 1212#define SNDRV_CTL_IOCTL_TLV_WRITE _IOWR('U', 0x1b, struct snd_ctl_tlv) 1213#define SNDRV_CTL_IOCTL_TLV_COMMAND _IOWR('U', 0x1c, struct snd_ctl_tlv) 1214#define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int) 1215#define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info) 1216#define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int) 1217#define SNDRV_CTL_IOCTL_PCM_INFO _IOWR('U', 0x31, struct snd_pcm_info) 1218#define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int) 1219#define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int) 1220#define SNDRV_CTL_IOCTL_RAWMIDI_INFO _IOWR('U', 0x41, struct snd_rawmidi_info) 1221#define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int) 1222#define SNDRV_CTL_IOCTL_UMP_NEXT_DEVICE _IOWR('U', 0x43, int) 1223#define SNDRV_CTL_IOCTL_UMP_ENDPOINT_INFO _IOWR('U', 0x44, struct snd_ump_endpoint_info) 1224#define SNDRV_CTL_IOCTL_UMP_BLOCK_INFO _IOWR('U', 0x45, struct snd_ump_block_info) 1225#define SNDRV_CTL_IOCTL_POWER _IOWR('U', 0xd0, int) 1226#define SNDRV_CTL_IOCTL_POWER_STATE _IOR('U', 0xd1, int) 1227 1228/* 1229 * Read interface. 1230 */ 1231 1232enum sndrv_ctl_event_type { 1233 SNDRV_CTL_EVENT_ELEM = 0, 1234 SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM, 1235}; 1236 1237#define SNDRV_CTL_EVENT_MASK_VALUE (1<<0) /* element value was changed */ 1238#define SNDRV_CTL_EVENT_MASK_INFO (1<<1) /* element info was changed */ 1239#define SNDRV_CTL_EVENT_MASK_ADD (1<<2) /* element was added */ 1240#define SNDRV_CTL_EVENT_MASK_TLV (1<<3) /* element TLV tree was changed */ 1241#define SNDRV_CTL_EVENT_MASK_REMOVE (~0U) /* element was removed */ 1242 1243struct snd_ctl_event { 1244 int type; /* event type - SNDRV_CTL_EVENT_* */ 1245 union { 1246 struct { 1247 unsigned int mask; 1248 struct snd_ctl_elem_id id; 1249 } elem; 1250 unsigned char data8[60]; 1251 } data; 1252}; 1253 1254/* 1255 * Control names 1256 */ 1257 1258#define SNDRV_CTL_NAME_NONE "" 1259#define SNDRV_CTL_NAME_PLAYBACK "Playback " 1260#define SNDRV_CTL_NAME_CAPTURE "Capture " 1261 1262#define SNDRV_CTL_NAME_IEC958_NONE "" 1263#define SNDRV_CTL_NAME_IEC958_SWITCH "Switch" 1264#define SNDRV_CTL_NAME_IEC958_VOLUME "Volume" 1265#define SNDRV_CTL_NAME_IEC958_DEFAULT "Default" 1266#define SNDRV_CTL_NAME_IEC958_MASK "Mask" 1267#define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask" 1268#define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask" 1269#define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream" 1270#define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what 1271 1272#endif /* _UAPI__SOUND_ASOUND_H */
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