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1/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */2/*3 * Advanced Linux Sound Architecture - ALSA - Driver4 * Copyright (c) 1994-2003 by Jaroslav Kysela <perex@perex.cz>,5 * Abramo Bagnara <abramo@alsa-project.org>6 */7 8#ifndef _UAPI__SOUND_ASOUND_H9#define _UAPI__SOUND_ASOUND_H10 11#if defined(__KERNEL__) || defined(__linux__)12#include <linux/types.h>13#include <asm/byteorder.h>14#else15#include <endian.h>16#include <sys/ioctl.h>17#endif18 19#ifndef __KERNEL__20#include <stdlib.h>21#include <time.h>22#endif23 24/*25 * protocol version26 */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 2444 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-shit 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_FIREFACE105};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_NONINTERLEAVED179 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 the193 * available bit count in most significant bit. It's for the case of so-called 'left-justified' or194 * `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_BE239#define SNDRV_PCM_FORMAT_FIRST SNDRV_PCM_FORMAT_S8240 241#ifdef SNDRV_LITTLE_ENDIAN242#define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE243#define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE244#define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE245#define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE246#define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE247#define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE248#define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE249#define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE250#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE251#define SNDRV_PCM_FORMAT_S20 SNDRV_PCM_FORMAT_S20_LE252#define SNDRV_PCM_FORMAT_U20 SNDRV_PCM_FORMAT_U20_LE253#endif254#ifdef SNDRV_BIG_ENDIAN255#define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE256#define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE257#define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE258#define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE259#define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE260#define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE261#define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE262#define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE263#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE264#define SNDRV_PCM_FORMAT_S20 SNDRV_PCM_FORMAT_S20_BE265#define SNDRV_PCM_FORMAT_U20 SNDRV_PCM_FORMAT_U20_BE266#endif267 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_24274 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_TIME64304#endif305 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_DISCONNECTED317 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_TIME64325 SNDRV_PCM_MMAP_OFFSET_STATUS = SNDRV_PCM_MMAP_OFFSET_STATUS_NEW,326 SNDRV_PCM_MMAP_OFFSET_CONTROL = SNDRV_PCM_MMAP_OFFSET_CONTROL_NEW,327#else328 SNDRV_PCM_MMAP_OFFSET_STATUS = SNDRV_PCM_MMAP_OFFSET_STATUS_OLD,329 SNDRV_PCM_MMAP_OFFSET_CONTROL = SNDRV_PCM_MMAP_OFFSET_CONTROL_OLD,330#endif331};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_ACCESS360#define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT361 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 between367 * interrupts in us368 */369#define SNDRV_PCM_HW_PARAM_PERIOD_SIZE 13 /* Approx frames between370 * interrupts371 */372#define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14 /* Approx bytes between373 * interrupts374 */375#define SNDRV_PCM_HW_PARAM_PERIODS 15 /* Approx interrupts per376 * buffer377 */378#define SNDRV_PCM_HW_PARAM_BUFFER_TIME 16 /* Approx duration of buffer379 * in us380 */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_BITS385#define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME386 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 filling391 * of the silence samples392 */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 256403 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; when442 * 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 else465 */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_SYNCHRONIZED475};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#endif500 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 definitions504 * are identical, so we keep the traditional version.505 */506#ifdef __SND_STRUCT_TIME64507#define __snd_pcm_mmap_status64 snd_pcm_mmap_status508#define __snd_pcm_mmap_control64 snd_pcm_mmap_control509#define __snd_pcm_sync_ptr64 snd_pcm_sync_ptr510#ifdef __KERNEL__511#define __snd_timespec64 __kernel_timespec512#else513#define __snd_timespec64 timespec514#endif515struct __snd_timespec {516 __s32 tv_sec;517 __s32 tv_nsec;518};519#else520#define __snd_pcm_mmap_status snd_pcm_mmap_status521#define __snd_pcm_mmap_control snd_pcm_mmap_control522#define __snd_pcm_sync_ptr snd_pcm_sync_ptr523#define __snd_timespec timespec524struct __snd_timespec64 {525 __s64 tv_sec;526 __s64 tv_nsec;527};528 529#endif530 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#endif565 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#endif570 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 binary587 // 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 0xffff672#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, 4)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 0x00000001728#define SNDRV_RAWMIDI_INFO_INPUT 0x00000002729#define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004730#define SNDRV_RAWMIDI_INFO_UMP 0x00000008731 732struct snd_rawmidi_info {733 unsigned int device; /* RO/WR (control): device number */734 unsigned int subdevice; /* RO/WR (control): subdevice number */735 int stream; /* WR: stream */736 int card; /* R: card number */737 unsigned int flags; /* SNDRV_RAWMIDI_INFO_XXXX */738 unsigned char id[64]; /* ID (user selectable) */739 unsigned char name[80]; /* name of device */740 unsigned char subname[32]; /* name of active or selected subdevice */741 unsigned int subdevices_count;742 unsigned int subdevices_avail;743 unsigned char reserved[64]; /* reserved for future use */744};745 746#define SNDRV_RAWMIDI_MODE_FRAMING_MASK (7<<0)747#define SNDRV_RAWMIDI_MODE_FRAMING_SHIFT 0748#define SNDRV_RAWMIDI_MODE_FRAMING_NONE (0<<0)749#define SNDRV_RAWMIDI_MODE_FRAMING_TSTAMP (1<<0)750#define SNDRV_RAWMIDI_MODE_CLOCK_MASK (7<<3)751#define SNDRV_RAWMIDI_MODE_CLOCK_SHIFT 3752#define SNDRV_RAWMIDI_MODE_CLOCK_NONE (0<<3)753#define SNDRV_RAWMIDI_MODE_CLOCK_REALTIME (1<<3)754#define SNDRV_RAWMIDI_MODE_CLOCK_MONOTONIC (2<<3)755#define SNDRV_RAWMIDI_MODE_CLOCK_MONOTONIC_RAW (3<<3)756 757#define SNDRV_RAWMIDI_FRAMING_DATA_LENGTH 16758 759struct snd_rawmidi_framing_tstamp {760 /* For now, frame_type is always 0. Midi 2.0 is expected to add new761 * types here. Applications are expected to skip unknown frame types.762 */763 __u8 frame_type;764 __u8 length; /* number of valid bytes in data field */765 __u8 reserved[2];766 __u32 tv_nsec; /* nanoseconds */767 __u64 tv_sec; /* seconds */768 __u8 data[SNDRV_RAWMIDI_FRAMING_DATA_LENGTH];769} __packed;770 771struct snd_rawmidi_params {772 int stream;773 size_t buffer_size; /* queue size in bytes */774 size_t avail_min; /* minimum avail bytes for wakeup */775 unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */776 unsigned int mode; /* For input data only, frame incoming data */777 unsigned char reserved[12]; /* reserved for future use */778};779 780#ifndef __KERNEL__781struct snd_rawmidi_status {782 int stream;783 __time_pad pad1;784 struct timespec tstamp; /* Timestamp */785 size_t avail; /* available bytes */786 size_t xruns; /* count of overruns since last status (in bytes) */787 unsigned char reserved[16]; /* reserved for future use */788};789#endif790 791/* UMP EP info flags */792#define SNDRV_UMP_EP_INFO_STATIC_BLOCKS 0x01793 794/* UMP EP Protocol / JRTS capability bits */795#define SNDRV_UMP_EP_INFO_PROTO_MIDI_MASK 0x0300796#define SNDRV_UMP_EP_INFO_PROTO_MIDI1 0x0100 /* MIDI 1.0 */797#define SNDRV_UMP_EP_INFO_PROTO_MIDI2 0x0200 /* MIDI 2.0 */798#define SNDRV_UMP_EP_INFO_PROTO_JRTS_MASK 0x0003799#define SNDRV_UMP_EP_INFO_PROTO_JRTS_TX 0x0001 /* JRTS Transmit */800#define SNDRV_UMP_EP_INFO_PROTO_JRTS_RX 0x0002 /* JRTS Receive */801 802/* UMP Endpoint information */803struct snd_ump_endpoint_info {804 int card; /* card number */805 int device; /* device number */806 unsigned int flags; /* additional info */807 unsigned int protocol_caps; /* protocol capabilities */808 unsigned int protocol; /* current protocol */809 unsigned int num_blocks; /* # of function blocks */810 unsigned short version; /* UMP major/minor version */811 unsigned short family_id; /* MIDI device family ID */812 unsigned short model_id; /* MIDI family model ID */813 unsigned int manufacturer_id; /* MIDI manufacturer ID */814 unsigned char sw_revision[4]; /* software revision */815 unsigned short padding;816 unsigned char name[128]; /* endpoint name string */817 unsigned char product_id[128]; /* unique product id string */818 unsigned char reserved[32];819} __packed;820 821/* UMP direction */822#define SNDRV_UMP_DIR_INPUT 0x01823#define SNDRV_UMP_DIR_OUTPUT 0x02824#define SNDRV_UMP_DIR_BIDIRECTION 0x03825 826/* UMP block info flags */827#define SNDRV_UMP_BLOCK_IS_MIDI1 (1U << 0) /* MIDI 1.0 port w/o restrict */828#define SNDRV_UMP_BLOCK_IS_LOWSPEED (1U << 1) /* 31.25Kbps B/W MIDI1 port */829 830/* UMP block user-interface hint */831#define SNDRV_UMP_BLOCK_UI_HINT_UNKNOWN 0x00832#define SNDRV_UMP_BLOCK_UI_HINT_RECEIVER 0x01833#define SNDRV_UMP_BLOCK_UI_HINT_SENDER 0x02834#define SNDRV_UMP_BLOCK_UI_HINT_BOTH 0x03835 836/* UMP groups and blocks */837#define SNDRV_UMP_MAX_GROUPS 16838#define SNDRV_UMP_MAX_BLOCKS 32839 840/* UMP Block information */841struct snd_ump_block_info {842 int card; /* card number */843 int device; /* device number */844 unsigned char block_id; /* block ID (R/W) */845 unsigned char direction; /* UMP direction */846 unsigned char active; /* Activeness */847 unsigned char first_group; /* first group ID */848 unsigned char num_groups; /* number of groups */849 unsigned char midi_ci_version; /* MIDI-CI support version */850 unsigned char sysex8_streams; /* max number of sysex8 streams */851 unsigned char ui_hint; /* user interface hint */852 unsigned int flags; /* various info flags */853 unsigned char name[128]; /* block name string */854 unsigned char reserved[32];855} __packed;856 857#define SNDRV_RAWMIDI_IOCTL_PVERSION _IOR('W', 0x00, int)858#define SNDRV_RAWMIDI_IOCTL_INFO _IOR('W', 0x01, struct snd_rawmidi_info)859#define SNDRV_RAWMIDI_IOCTL_USER_PVERSION _IOW('W', 0x02, int)860#define SNDRV_RAWMIDI_IOCTL_PARAMS _IOWR('W', 0x10, struct snd_rawmidi_params)861#define SNDRV_RAWMIDI_IOCTL_STATUS _IOWR('W', 0x20, struct snd_rawmidi_status)862#define SNDRV_RAWMIDI_IOCTL_DROP _IOW('W', 0x30, int)863#define SNDRV_RAWMIDI_IOCTL_DRAIN _IOW('W', 0x31, int)864/* Additional ioctls for UMP rawmidi devices */865#define SNDRV_UMP_IOCTL_ENDPOINT_INFO _IOR('W', 0x40, struct snd_ump_endpoint_info)866#define SNDRV_UMP_IOCTL_BLOCK_INFO _IOR('W', 0x41, struct snd_ump_block_info)867 868/*869 * Timer section - /dev/snd/timer870 */871 872#define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 8)873 874enum {875 SNDRV_TIMER_CLASS_NONE = -1,876 SNDRV_TIMER_CLASS_SLAVE = 0,877 SNDRV_TIMER_CLASS_GLOBAL,878 SNDRV_TIMER_CLASS_CARD,879 SNDRV_TIMER_CLASS_PCM,880 SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM,881};882 883/* slave timer classes */884enum {885 SNDRV_TIMER_SCLASS_NONE = 0,886 SNDRV_TIMER_SCLASS_APPLICATION,887 SNDRV_TIMER_SCLASS_SEQUENCER, /* alias */888 SNDRV_TIMER_SCLASS_OSS_SEQUENCER, /* alias */889 SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER,890};891 892/* global timers (device member) */893#define SNDRV_TIMER_GLOBAL_SYSTEM 0894#define SNDRV_TIMER_GLOBAL_RTC 1 /* unused */895#define SNDRV_TIMER_GLOBAL_HPET 2896#define SNDRV_TIMER_GLOBAL_HRTIMER 3897#define SNDRV_TIMER_GLOBAL_UDRIVEN 4898 899/* info flags */900#define SNDRV_TIMER_FLG_SLAVE (1<<0) /* cannot be controlled */901 902struct snd_timer_id {903 int dev_class;904 int dev_sclass;905 int card;906 int device;907 int subdevice;908};909 910struct snd_timer_ginfo {911 struct snd_timer_id tid; /* requested timer ID */912 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */913 int card; /* card number */914 unsigned char id[64]; /* timer identification */915 unsigned char name[80]; /* timer name */916 unsigned long reserved0; /* reserved for future use */917 unsigned long resolution; /* average period resolution in ns */918 unsigned long resolution_min; /* minimal period resolution in ns */919 unsigned long resolution_max; /* maximal period resolution in ns */920 unsigned int clients; /* active timer clients */921 unsigned char reserved[32];922};923 924struct snd_timer_gparams {925 struct snd_timer_id tid; /* requested timer ID */926 unsigned long period_num; /* requested precise period duration (in seconds) - numerator */927 unsigned long period_den; /* requested precise period duration (in seconds) - denominator */928 unsigned char reserved[32];929};930 931struct snd_timer_gstatus {932 struct snd_timer_id tid; /* requested timer ID */933 unsigned long resolution; /* current period resolution in ns */934 unsigned long resolution_num; /* precise current period resolution (in seconds) - numerator */935 unsigned long resolution_den; /* precise current period resolution (in seconds) - denominator */936 unsigned char reserved[32];937};938 939struct snd_timer_select {940 struct snd_timer_id id; /* bind to timer ID */941 unsigned char reserved[32]; /* reserved */942};943 944struct snd_timer_info {945 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */946 int card; /* card number */947 unsigned char id[64]; /* timer identificator */948 unsigned char name[80]; /* timer name */949 unsigned long reserved0; /* reserved for future use */950 unsigned long resolution; /* average period resolution in ns */951 unsigned char reserved[64]; /* reserved */952};953 954#define SNDRV_TIMER_PSFLG_AUTO (1<<0) /* auto start, otherwise one-shot */955#define SNDRV_TIMER_PSFLG_EXCLUSIVE (1<<1) /* exclusive use, precise start/stop/pause/continue */956#define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2) /* write early event to the poll queue */957 958struct snd_timer_params {959 unsigned int flags; /* flags - SNDRV_TIMER_PSFLG_* */960 unsigned int ticks; /* requested resolution in ticks */961 unsigned int queue_size; /* total size of queue (32-1024) */962 unsigned int reserved0; /* reserved, was: failure locations */963 unsigned int filter; /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */964 unsigned char reserved[60]; /* reserved */965};966 967#ifndef __KERNEL__968struct snd_timer_status {969 struct timespec tstamp; /* Timestamp - last update */970 unsigned int resolution; /* current period resolution in ns */971 unsigned int lost; /* counter of master tick lost */972 unsigned int overrun; /* count of read queue overruns */973 unsigned int queue; /* used queue size */974 unsigned char reserved[64]; /* reserved */975};976#endif977 978/*979 * This structure describes the userspace-driven timer. Such timers are purely virtual,980 * and can only be triggered from software (for instance, by userspace application).981 */982struct snd_timer_uinfo {983 /* To pretend being a normal timer, we need to know the resolution in ns. */984 __u64 resolution;985 int fd;986 unsigned int id;987 unsigned char reserved[16];988};989 990#define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int)991#define SNDRV_TIMER_IOCTL_NEXT_DEVICE _IOWR('T', 0x01, struct snd_timer_id)992#define SNDRV_TIMER_IOCTL_TREAD_OLD _IOW('T', 0x02, int)993#define SNDRV_TIMER_IOCTL_GINFO _IOWR('T', 0x03, struct snd_timer_ginfo)994#define SNDRV_TIMER_IOCTL_GPARAMS _IOW('T', 0x04, struct snd_timer_gparams)995#define SNDRV_TIMER_IOCTL_GSTATUS _IOWR('T', 0x05, struct snd_timer_gstatus)996#define SNDRV_TIMER_IOCTL_SELECT _IOW('T', 0x10, struct snd_timer_select)997#define SNDRV_TIMER_IOCTL_INFO _IOR('T', 0x11, struct snd_timer_info)998#define SNDRV_TIMER_IOCTL_PARAMS _IOW('T', 0x12, struct snd_timer_params)999#define SNDRV_TIMER_IOCTL_STATUS _IOR('T', 0x14, struct snd_timer_status)1000/* The following four ioctls are changed since 1.0.9 due to confliction */1001#define SNDRV_TIMER_IOCTL_START _IO('T', 0xa0)1002#define SNDRV_TIMER_IOCTL_STOP _IO('T', 0xa1)1003#define SNDRV_TIMER_IOCTL_CONTINUE _IO('T', 0xa2)1004#define SNDRV_TIMER_IOCTL_PAUSE _IO('T', 0xa3)1005#define SNDRV_TIMER_IOCTL_TREAD64 _IOW('T', 0xa4, int)1006#define SNDRV_TIMER_IOCTL_CREATE _IOWR('T', 0xa5, struct snd_timer_uinfo)1007#define SNDRV_TIMER_IOCTL_TRIGGER _IO('T', 0xa6)1008 1009#if __BITS_PER_LONG == 641010#define SNDRV_TIMER_IOCTL_TREAD SNDRV_TIMER_IOCTL_TREAD_OLD1011#else1012#define SNDRV_TIMER_IOCTL_TREAD ((sizeof(__kernel_long_t) >= sizeof(time_t)) ? \1013 SNDRV_TIMER_IOCTL_TREAD_OLD : \1014 SNDRV_TIMER_IOCTL_TREAD64)1015#endif1016 1017struct snd_timer_read {1018 unsigned int resolution;1019 unsigned int ticks;1020};1021 1022enum {1023 SNDRV_TIMER_EVENT_RESOLUTION = 0, /* val = resolution in ns */1024 SNDRV_TIMER_EVENT_TICK, /* val = ticks */1025 SNDRV_TIMER_EVENT_START, /* val = resolution in ns */1026 SNDRV_TIMER_EVENT_STOP, /* val = 0 */1027 SNDRV_TIMER_EVENT_CONTINUE, /* val = resolution in ns */1028 SNDRV_TIMER_EVENT_PAUSE, /* val = 0 */1029 SNDRV_TIMER_EVENT_EARLY, /* val = 0, early event */1030 SNDRV_TIMER_EVENT_SUSPEND, /* val = 0 */1031 SNDRV_TIMER_EVENT_RESUME, /* val = resolution in ns */1032 /* master timer events for slave timer instances */1033 SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10,1034 SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10,1035 SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10,1036 SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10,1037 SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10,1038 SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10,1039};1040 1041#ifndef __KERNEL__1042struct snd_timer_tread {1043 int event;1044 __time_pad pad1;1045 struct timespec tstamp;1046 unsigned int val;1047 __time_pad pad2;1048};1049#endif1050 1051/****************************************************************************1052 * *1053 * Section for driver control interface - /dev/snd/control? *1054 * *1055 ****************************************************************************/1056 1057#define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 9)1058 1059struct snd_ctl_card_info {1060 int card; /* card number */1061 int pad; /* reserved for future (was type) */1062 unsigned char id[16]; /* ID of card (user selectable) */1063 unsigned char driver[16]; /* Driver name */1064 unsigned char name[32]; /* Short name of soundcard */1065 unsigned char longname[80]; /* name + info text about soundcard */1066 unsigned char reserved_[16]; /* reserved for future (was ID of mixer) */1067 unsigned char mixername[80]; /* visual mixer identification */1068 unsigned char components[128]; /* card components / fine identification, delimited with one space (AC97 etc..) */1069};1070 1071typedef int __bitwise snd_ctl_elem_type_t;1072#define SNDRV_CTL_ELEM_TYPE_NONE ((__force snd_ctl_elem_type_t) 0) /* invalid */1073#define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1) /* boolean type */1074#define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2) /* integer type */1075#define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((__force snd_ctl_elem_type_t) 3) /* enumerated type */1076#define SNDRV_CTL_ELEM_TYPE_BYTES ((__force snd_ctl_elem_type_t) 4) /* byte array */1077#define SNDRV_CTL_ELEM_TYPE_IEC958 ((__force snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */1078#define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((__force snd_ctl_elem_type_t) 6) /* 64-bit integer type */1079#define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER641080 1081typedef int __bitwise snd_ctl_elem_iface_t;1082#define SNDRV_CTL_ELEM_IFACE_CARD ((__force snd_ctl_elem_iface_t) 0) /* global control */1083#define SNDRV_CTL_ELEM_IFACE_HWDEP ((__force snd_ctl_elem_iface_t) 1) /* hardware dependent device */1084#define SNDRV_CTL_ELEM_IFACE_MIXER ((__force snd_ctl_elem_iface_t) 2) /* virtual mixer device */1085#define SNDRV_CTL_ELEM_IFACE_PCM ((__force snd_ctl_elem_iface_t) 3) /* PCM device */1086#define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((__force snd_ctl_elem_iface_t) 4) /* RawMidi device */1087#define SNDRV_CTL_ELEM_IFACE_TIMER ((__force snd_ctl_elem_iface_t) 5) /* timer device */1088#define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((__force snd_ctl_elem_iface_t) 6) /* sequencer client */1089#define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER1090 1091#define SNDRV_CTL_ELEM_ACCESS_READ (1<<0)1092#define SNDRV_CTL_ELEM_ACCESS_WRITE (1<<1)1093#define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE)1094#define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1<<2) /* control value may be changed without a notification */1095/* (1 << 3) is unused. */1096#define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1<<4) /* TLV read is possible */1097#define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1<<5) /* TLV write is possible */1098#define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE)1099#define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1<<6) /* TLV command is possible */1100#define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) /* control does actually nothing, but may be updated */1101#define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) /* write lock */1102#define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) /* write lock owner */1103#define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1<<28) /* kernel use a TLV callback */1104#define SNDRV_CTL_ELEM_ACCESS_USER (1<<29) /* user space element */1105/* bits 30 and 31 are obsoleted (for indirect access) */1106 1107/* for further details see the ACPI and PCI power management specification */1108#define SNDRV_CTL_POWER_D0 0x0000 /* full On */1109#define SNDRV_CTL_POWER_D1 0x0100 /* partial On */1110#define SNDRV_CTL_POWER_D2 0x0200 /* partial On */1111#define SNDRV_CTL_POWER_D3 0x0300 /* Off */1112#define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) /* Off, with power */1113#define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) /* Off, without power */1114 1115#define SNDRV_CTL_ELEM_ID_NAME_MAXLEN 441116 1117struct snd_ctl_elem_id {1118 unsigned int numid; /* numeric identifier, zero = invalid */1119 snd_ctl_elem_iface_t iface; /* interface identifier */1120 unsigned int device; /* device/client number */1121 unsigned int subdevice; /* subdevice (substream) number */1122 unsigned char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* ASCII name of item */1123 unsigned int index; /* index of item */1124};1125 1126struct snd_ctl_elem_list {1127 unsigned int offset; /* W: first element ID to get */1128 unsigned int space; /* W: count of element IDs to get */1129 unsigned int used; /* R: count of element IDs set */1130 unsigned int count; /* R: count of all elements */1131 struct snd_ctl_elem_id __user *pids; /* R: IDs */1132 unsigned char reserved[50];1133};1134 1135struct snd_ctl_elem_info {1136 struct snd_ctl_elem_id id; /* W: element ID */1137 snd_ctl_elem_type_t type; /* R: value type - SNDRV_CTL_ELEM_TYPE_* */1138 unsigned int access; /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */1139 unsigned int count; /* count of values */1140 __kernel_pid_t owner; /* owner's PID of this control */1141 union {1142 struct {1143 long min; /* R: minimum value */1144 long max; /* R: maximum value */1145 long step; /* R: step (0 variable) */1146 } integer;1147 struct {1148 long long min; /* R: minimum value */1149 long long max; /* R: maximum value */1150 long long step; /* R: step (0 variable) */1151 } integer64;1152 struct {1153 unsigned int items; /* R: number of items */1154 unsigned int item; /* W: item number */1155 char name[64]; /* R: value name */1156 __u64 names_ptr; /* W: names list (ELEM_ADD only) */1157 unsigned int names_length;1158 } enumerated;1159 unsigned char reserved[128];1160 } value;1161 unsigned char reserved[64];1162};1163 1164struct snd_ctl_elem_value {1165 struct snd_ctl_elem_id id; /* W: element ID */1166 unsigned int indirect: 1; /* W: indirect access - obsoleted */1167 union {1168 union {1169 long value[128];1170 long *value_ptr; /* obsoleted */1171 } integer;1172 union {1173 long long value[64];1174 long long *value_ptr; /* obsoleted */1175 } integer64;1176 union {1177 unsigned int item[128];1178 unsigned int *item_ptr; /* obsoleted */1179 } enumerated;1180 union {1181 unsigned char data[512];1182 unsigned char *data_ptr; /* obsoleted */1183 } bytes;1184 struct snd_aes_iec958 iec958;1185 } value; /* RO */1186 unsigned char reserved[128];1187};1188 1189struct snd_ctl_tlv {1190 unsigned int numid; /* control element numeric identification */1191 unsigned int length; /* in bytes aligned to 4 */1192 unsigned int tlv[]; /* first TLV */1193};1194 1195#define SNDRV_CTL_IOCTL_PVERSION _IOR('U', 0x00, int)1196#define SNDRV_CTL_IOCTL_CARD_INFO _IOR('U', 0x01, struct snd_ctl_card_info)1197#define SNDRV_CTL_IOCTL_ELEM_LIST _IOWR('U', 0x10, struct snd_ctl_elem_list)1198#define SNDRV_CTL_IOCTL_ELEM_INFO _IOWR('U', 0x11, struct snd_ctl_elem_info)1199#define SNDRV_CTL_IOCTL_ELEM_READ _IOWR('U', 0x12, struct snd_ctl_elem_value)1200#define SNDRV_CTL_IOCTL_ELEM_WRITE _IOWR('U', 0x13, struct snd_ctl_elem_value)1201#define SNDRV_CTL_IOCTL_ELEM_LOCK _IOW('U', 0x14, struct snd_ctl_elem_id)1202#define SNDRV_CTL_IOCTL_ELEM_UNLOCK _IOW('U', 0x15, struct snd_ctl_elem_id)1203#define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int)1204#define SNDRV_CTL_IOCTL_ELEM_ADD _IOWR('U', 0x17, struct snd_ctl_elem_info)1205#define SNDRV_CTL_IOCTL_ELEM_REPLACE _IOWR('U', 0x18, struct snd_ctl_elem_info)1206#define SNDRV_CTL_IOCTL_ELEM_REMOVE _IOWR('U', 0x19, struct snd_ctl_elem_id)1207#define SNDRV_CTL_IOCTL_TLV_READ _IOWR('U', 0x1a, struct snd_ctl_tlv)1208#define SNDRV_CTL_IOCTL_TLV_WRITE _IOWR('U', 0x1b, struct snd_ctl_tlv)1209#define SNDRV_CTL_IOCTL_TLV_COMMAND _IOWR('U', 0x1c, struct snd_ctl_tlv)1210#define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int)1211#define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info)1212#define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int)1213#define SNDRV_CTL_IOCTL_PCM_INFO _IOWR('U', 0x31, struct snd_pcm_info)1214#define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int)1215#define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int)1216#define SNDRV_CTL_IOCTL_RAWMIDI_INFO _IOWR('U', 0x41, struct snd_rawmidi_info)1217#define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int)1218#define SNDRV_CTL_IOCTL_UMP_NEXT_DEVICE _IOWR('U', 0x43, int)1219#define SNDRV_CTL_IOCTL_UMP_ENDPOINT_INFO _IOWR('U', 0x44, struct snd_ump_endpoint_info)1220#define SNDRV_CTL_IOCTL_UMP_BLOCK_INFO _IOWR('U', 0x45, struct snd_ump_block_info)1221#define SNDRV_CTL_IOCTL_POWER _IOWR('U', 0xd0, int)1222#define SNDRV_CTL_IOCTL_POWER_STATE _IOR('U', 0xd1, int)1223 1224/*1225 * Read interface.1226 */1227 1228enum sndrv_ctl_event_type {1229 SNDRV_CTL_EVENT_ELEM = 0,1230 SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM,1231};1232 1233#define SNDRV_CTL_EVENT_MASK_VALUE (1<<0) /* element value was changed */1234#define SNDRV_CTL_EVENT_MASK_INFO (1<<1) /* element info was changed */1235#define SNDRV_CTL_EVENT_MASK_ADD (1<<2) /* element was added */1236#define SNDRV_CTL_EVENT_MASK_TLV (1<<3) /* element TLV tree was changed */1237#define SNDRV_CTL_EVENT_MASK_REMOVE (~0U) /* element was removed */1238 1239struct snd_ctl_event {1240 int type; /* event type - SNDRV_CTL_EVENT_* */1241 union {1242 struct {1243 unsigned int mask;1244 struct snd_ctl_elem_id id;1245 } elem;1246 unsigned char data8[60];1247 } data;1248};1249 1250/*1251 * Control names1252 */1253 1254#define SNDRV_CTL_NAME_NONE ""1255#define SNDRV_CTL_NAME_PLAYBACK "Playback "1256#define SNDRV_CTL_NAME_CAPTURE "Capture "1257 1258#define SNDRV_CTL_NAME_IEC958_NONE ""1259#define SNDRV_CTL_NAME_IEC958_SWITCH "Switch"1260#define SNDRV_CTL_NAME_IEC958_VOLUME "Volume"1261#define SNDRV_CTL_NAME_IEC958_DEFAULT "Default"1262#define SNDRV_CTL_NAME_IEC958_MASK "Mask"1263#define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask"1264#define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask"1265#define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream"1266#define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what1267 1268#endif /* _UAPI__SOUND_ASOUND_H */1269