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 *   This program is free software; you can redistribute it and/or modify
   9 *   it under the terms of the GNU General Public License as published by
  10 *   the Free Software Foundation; either version 2 of the License, or
  11 *   (at your option) any later version.
  12 *
  13 *   This program is distributed in the hope that it will be useful,
  14 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 *   GNU General Public License for more details.
  17 *
  18 *   You should have received a copy of the GNU General Public License
  19 *   along with this program; if not, write to the Free Software
  20 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  21 *
  22 */
  23
  24#ifndef _UAPI__SOUND_ASOUND_H
  25#define _UAPI__SOUND_ASOUND_H
  26
  27#if defined(__KERNEL__) || defined(__linux__)
  28#include <linux/types.h>
  29#include <asm/byteorder.h>
  30#else
  31#include <endian.h>
  32#include <sys/ioctl.h>
  33#endif
  34
  35#ifndef __KERNEL__
  36#include <stdlib.h>
  37#include <time.h>
  38#endif
  39
  40/*
  41 *  protocol version
  42 */
  43
  44#define SNDRV_PROTOCOL_VERSION(major, minor, subminor) (((major)<<16)|((minor)<<8)|(subminor))
  45#define SNDRV_PROTOCOL_MAJOR(version) (((version)>>16)&0xffff)
  46#define SNDRV_PROTOCOL_MINOR(version) (((version)>>8)&0xff)
  47#define SNDRV_PROTOCOL_MICRO(version) ((version)&0xff)
  48#define SNDRV_PROTOCOL_INCOMPATIBLE(kversion, uversion) \
  49	(SNDRV_PROTOCOL_MAJOR(kversion) != SNDRV_PROTOCOL_MAJOR(uversion) || \
  50	 (SNDRV_PROTOCOL_MAJOR(kversion) == SNDRV_PROTOCOL_MAJOR(uversion) && \
  51	   SNDRV_PROTOCOL_MINOR(kversion) != SNDRV_PROTOCOL_MINOR(uversion)))
  52
  53/****************************************************************************
  54 *                                                                          *
  55 *        Digital audio interface					    *
  56 *                                                                          *
  57 ****************************************************************************/
  58
 
 
  59struct snd_aes_iec958 {
  60	unsigned char status[24];	/* AES/IEC958 channel status bits */
  61	unsigned char subcode[147];	/* AES/IEC958 subcode bits */
  62	unsigned char pad;		/* nothing */
  63	unsigned char dig_subframe[4];	/* AES/IEC958 subframe bits */
  64};
  65
  66/****************************************************************************
  67 *                                                                          *
  68 *        CEA-861 Audio InfoFrame. Used in HDMI and DisplayPort		    *
  69 *                                                                          *
  70 ****************************************************************************/
  71
  72struct snd_cea_861_aud_if {
  73	unsigned char db1_ct_cc; /* coding type and channel count */
  74	unsigned char db2_sf_ss; /* sample frequency and size */
  75	unsigned char db3; /* not used, all zeros */
  76	unsigned char db4_ca; /* channel allocation code */
  77	unsigned char db5_dminh_lsv; /* downmix inhibit & level-shit values */
  78};
  79
  80/****************************************************************************
  81 *                                                                          *
  82 *      Section for driver hardware dependent interface - /dev/snd/hw?      *
  83 *                                                                          *
  84 ****************************************************************************/
  85
  86#define SNDRV_HWDEP_VERSION		SNDRV_PROTOCOL_VERSION(1, 0, 1)
  87
  88enum {
  89	SNDRV_HWDEP_IFACE_OPL2 = 0,
  90	SNDRV_HWDEP_IFACE_OPL3,
  91	SNDRV_HWDEP_IFACE_OPL4,
  92	SNDRV_HWDEP_IFACE_SB16CSP,	/* Creative Signal Processor */
  93	SNDRV_HWDEP_IFACE_EMU10K1,	/* FX8010 processor in EMU10K1 chip */
  94	SNDRV_HWDEP_IFACE_YSS225,	/* Yamaha FX processor */
  95	SNDRV_HWDEP_IFACE_ICS2115,	/* Wavetable synth */
  96	SNDRV_HWDEP_IFACE_SSCAPE,	/* Ensoniq SoundScape ISA card (MC68EC000) */
  97	SNDRV_HWDEP_IFACE_VX,		/* Digigram VX cards */
  98	SNDRV_HWDEP_IFACE_MIXART,	/* Digigram miXart cards */
  99	SNDRV_HWDEP_IFACE_USX2Y,	/* Tascam US122, US224 & US428 usb */
 100	SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */
 101	SNDRV_HWDEP_IFACE_BLUETOOTH,	/* Bluetooth audio */
 102	SNDRV_HWDEP_IFACE_USX2Y_PCM,	/* Tascam US122, US224 & US428 rawusb pcm */
 103	SNDRV_HWDEP_IFACE_PCXHR,	/* Digigram PCXHR */
 104	SNDRV_HWDEP_IFACE_SB_RC,	/* SB Extigy/Audigy2NX remote control */
 105	SNDRV_HWDEP_IFACE_HDA,		/* HD-audio */
 106	SNDRV_HWDEP_IFACE_USB_STREAM,	/* direct access to usb stream */
 107	SNDRV_HWDEP_IFACE_FW_DICE,	/* TC DICE FireWire device */
 108	SNDRV_HWDEP_IFACE_FW_FIREWORKS,	/* Echo Audio Fireworks based device */
 109	SNDRV_HWDEP_IFACE_FW_BEBOB,	/* BridgeCo BeBoB based device */
 110	SNDRV_HWDEP_IFACE_FW_OXFW,	/* Oxford OXFW970/971 based device */
 111	SNDRV_HWDEP_IFACE_FW_DIGI00X,	/* Digidesign Digi 002/003 family */
 112	SNDRV_HWDEP_IFACE_FW_TASCAM,	/* TASCAM FireWire series */
 113	SNDRV_HWDEP_IFACE_LINE6,	/* Line6 USB processors */
 114	SNDRV_HWDEP_IFACE_FW_MOTU,	/* MOTU FireWire series */
 115	SNDRV_HWDEP_IFACE_FW_FIREFACE,	/* RME Fireface series */
 116
 117	/* Don't forget to change the following: */
 118	SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_FW_FIREFACE
 119};
 120
 121struct snd_hwdep_info {
 122	unsigned int device;		/* WR: device number */
 123	int card;			/* R: card number */
 124	unsigned char id[64];		/* ID (user selectable) */
 125	unsigned char name[80];		/* hwdep name */
 126	int iface;			/* hwdep interface */
 127	unsigned char reserved[64];	/* reserved for future */
 128};
 129
 130/* generic DSP loader */
 131struct snd_hwdep_dsp_status {
 132	unsigned int version;		/* R: driver-specific version */
 133	unsigned char id[32];		/* R: driver-specific ID string */
 134	unsigned int num_dsps;		/* R: number of DSP images to transfer */
 135	unsigned int dsp_loaded;	/* R: bit flags indicating the loaded DSPs */
 136	unsigned int chip_ready;	/* R: 1 = initialization finished */
 137	unsigned char reserved[16];	/* reserved for future use */
 138};
 139
 140struct snd_hwdep_dsp_image {
 141	unsigned int index;		/* W: DSP index */
 142	unsigned char name[64];		/* W: ID (e.g. file name) */
 143	unsigned char __user *image;	/* W: binary image */
 144	size_t length;			/* W: size of image in bytes */
 145	unsigned long driver_data;	/* W: driver-specific data */
 146};
 147
 148#define SNDRV_HWDEP_IOCTL_PVERSION	_IOR ('H', 0x00, int)
 149#define SNDRV_HWDEP_IOCTL_INFO		_IOR ('H', 0x01, struct snd_hwdep_info)
 150#define SNDRV_HWDEP_IOCTL_DSP_STATUS	_IOR('H', 0x02, struct snd_hwdep_dsp_status)
 151#define SNDRV_HWDEP_IOCTL_DSP_LOAD	_IOW('H', 0x03, struct snd_hwdep_dsp_image)
 152
 153/*****************************************************************************
 154 *                                                                           *
 155 *             Digital Audio (PCM) interface - /dev/snd/pcm??                *
 156 *                                                                           *
 157 *****************************************************************************/
 158
 159#define SNDRV_PCM_VERSION		SNDRV_PROTOCOL_VERSION(2, 0, 15)
 160
 161typedef unsigned long snd_pcm_uframes_t;
 162typedef signed long snd_pcm_sframes_t;
 163
 164enum {
 165	SNDRV_PCM_CLASS_GENERIC = 0,	/* standard mono or stereo device */
 166	SNDRV_PCM_CLASS_MULTI,		/* multichannel device */
 167	SNDRV_PCM_CLASS_MODEM,		/* software modem class */
 168	SNDRV_PCM_CLASS_DIGITIZER,	/* digitizer class */
 169	/* Don't forget to change the following: */
 170	SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER,
 171};
 172
 173enum {
 174	SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, /* mono or stereo subdevices are mixed together */
 175	SNDRV_PCM_SUBCLASS_MULTI_MIX,	/* multichannel subdevices are mixed together */
 176	/* Don't forget to change the following: */
 177	SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX,
 178};
 179
 180enum {
 181	SNDRV_PCM_STREAM_PLAYBACK = 0,
 182	SNDRV_PCM_STREAM_CAPTURE,
 183	SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE,
 184};
 185
 186typedef int __bitwise snd_pcm_access_t;
 187#define	SNDRV_PCM_ACCESS_MMAP_INTERLEAVED	((__force snd_pcm_access_t) 0) /* interleaved mmap */
 188#define	SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED	((__force snd_pcm_access_t) 1) /* noninterleaved mmap */
 189#define	SNDRV_PCM_ACCESS_MMAP_COMPLEX		((__force snd_pcm_access_t) 2) /* complex mmap */
 190#define	SNDRV_PCM_ACCESS_RW_INTERLEAVED		((__force snd_pcm_access_t) 3) /* readi/writei */
 191#define	SNDRV_PCM_ACCESS_RW_NONINTERLEAVED	((__force snd_pcm_access_t) 4) /* readn/writen */
 192#define	SNDRV_PCM_ACCESS_LAST		SNDRV_PCM_ACCESS_RW_NONINTERLEAVED
 193
 194typedef int __bitwise snd_pcm_format_t;
 195#define	SNDRV_PCM_FORMAT_S8	((__force snd_pcm_format_t) 0)
 196#define	SNDRV_PCM_FORMAT_U8	((__force snd_pcm_format_t) 1)
 197#define	SNDRV_PCM_FORMAT_S16_LE	((__force snd_pcm_format_t) 2)
 198#define	SNDRV_PCM_FORMAT_S16_BE	((__force snd_pcm_format_t) 3)
 199#define	SNDRV_PCM_FORMAT_U16_LE	((__force snd_pcm_format_t) 4)
 200#define	SNDRV_PCM_FORMAT_U16_BE	((__force snd_pcm_format_t) 5)
 201#define	SNDRV_PCM_FORMAT_S24_LE	((__force snd_pcm_format_t) 6) /* low three bytes */
 202#define	SNDRV_PCM_FORMAT_S24_BE	((__force snd_pcm_format_t) 7) /* low three bytes */
 203#define	SNDRV_PCM_FORMAT_U24_LE	((__force snd_pcm_format_t) 8) /* low three bytes */
 204#define	SNDRV_PCM_FORMAT_U24_BE	((__force snd_pcm_format_t) 9) /* low three bytes */
 
 
 
 
 
 205#define	SNDRV_PCM_FORMAT_S32_LE	((__force snd_pcm_format_t) 10)
 206#define	SNDRV_PCM_FORMAT_S32_BE	((__force snd_pcm_format_t) 11)
 207#define	SNDRV_PCM_FORMAT_U32_LE	((__force snd_pcm_format_t) 12)
 208#define	SNDRV_PCM_FORMAT_U32_BE	((__force snd_pcm_format_t) 13)
 209#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 */
 210#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 */
 211#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 */
 212#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 */
 213#define	SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((__force snd_pcm_format_t) 18) /* IEC-958 subframe, Little Endian */
 214#define	SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((__force snd_pcm_format_t) 19) /* IEC-958 subframe, Big Endian */
 215#define	SNDRV_PCM_FORMAT_MU_LAW		((__force snd_pcm_format_t) 20)
 216#define	SNDRV_PCM_FORMAT_A_LAW		((__force snd_pcm_format_t) 21)
 217#define	SNDRV_PCM_FORMAT_IMA_ADPCM	((__force snd_pcm_format_t) 22)
 218#define	SNDRV_PCM_FORMAT_MPEG		((__force snd_pcm_format_t) 23)
 219#define	SNDRV_PCM_FORMAT_GSM		((__force snd_pcm_format_t) 24)
 220#define	SNDRV_PCM_FORMAT_S20_LE	((__force snd_pcm_format_t) 25) /* in four bytes, LSB justified */
 221#define	SNDRV_PCM_FORMAT_S20_BE	((__force snd_pcm_format_t) 26) /* in four bytes, LSB justified */
 222#define	SNDRV_PCM_FORMAT_U20_LE	((__force snd_pcm_format_t) 27) /* in four bytes, LSB justified */
 223#define	SNDRV_PCM_FORMAT_U20_BE	((__force snd_pcm_format_t) 28) /* in four bytes, LSB justified */
 224/* gap in the numbering for a future standard linear format */
 225#define	SNDRV_PCM_FORMAT_SPECIAL	((__force snd_pcm_format_t) 31)
 226#define	SNDRV_PCM_FORMAT_S24_3LE	((__force snd_pcm_format_t) 32)	/* in three bytes */
 227#define	SNDRV_PCM_FORMAT_S24_3BE	((__force snd_pcm_format_t) 33)	/* in three bytes */
 228#define	SNDRV_PCM_FORMAT_U24_3LE	((__force snd_pcm_format_t) 34)	/* in three bytes */
 229#define	SNDRV_PCM_FORMAT_U24_3BE	((__force snd_pcm_format_t) 35)	/* in three bytes */
 230#define	SNDRV_PCM_FORMAT_S20_3LE	((__force snd_pcm_format_t) 36)	/* in three bytes */
 231#define	SNDRV_PCM_FORMAT_S20_3BE	((__force snd_pcm_format_t) 37)	/* in three bytes */
 232#define	SNDRV_PCM_FORMAT_U20_3LE	((__force snd_pcm_format_t) 38)	/* in three bytes */
 233#define	SNDRV_PCM_FORMAT_U20_3BE	((__force snd_pcm_format_t) 39)	/* in three bytes */
 234#define	SNDRV_PCM_FORMAT_S18_3LE	((__force snd_pcm_format_t) 40)	/* in three bytes */
 235#define	SNDRV_PCM_FORMAT_S18_3BE	((__force snd_pcm_format_t) 41)	/* in three bytes */
 236#define	SNDRV_PCM_FORMAT_U18_3LE	((__force snd_pcm_format_t) 42)	/* in three bytes */
 237#define	SNDRV_PCM_FORMAT_U18_3BE	((__force snd_pcm_format_t) 43)	/* in three bytes */
 238#define	SNDRV_PCM_FORMAT_G723_24	((__force snd_pcm_format_t) 44) /* 8 samples in 3 bytes */
 239#define	SNDRV_PCM_FORMAT_G723_24_1B	((__force snd_pcm_format_t) 45) /* 1 sample in 1 byte */
 240#define	SNDRV_PCM_FORMAT_G723_40	((__force snd_pcm_format_t) 46) /* 8 Samples in 5 bytes */
 241#define	SNDRV_PCM_FORMAT_G723_40_1B	((__force snd_pcm_format_t) 47) /* 1 sample in 1 byte */
 242#define	SNDRV_PCM_FORMAT_DSD_U8		((__force snd_pcm_format_t) 48) /* DSD, 1-byte samples DSD (x8) */
 243#define	SNDRV_PCM_FORMAT_DSD_U16_LE	((__force snd_pcm_format_t) 49) /* DSD, 2-byte samples DSD (x16), little endian */
 244#define	SNDRV_PCM_FORMAT_DSD_U32_LE	((__force snd_pcm_format_t) 50) /* DSD, 4-byte samples DSD (x32), little endian */
 245#define	SNDRV_PCM_FORMAT_DSD_U16_BE	((__force snd_pcm_format_t) 51) /* DSD, 2-byte samples DSD (x16), big endian */
 246#define	SNDRV_PCM_FORMAT_DSD_U32_BE	((__force snd_pcm_format_t) 52) /* DSD, 4-byte samples DSD (x32), big endian */
 247#define	SNDRV_PCM_FORMAT_LAST		SNDRV_PCM_FORMAT_DSD_U32_BE
 248#define	SNDRV_PCM_FORMAT_FIRST		SNDRV_PCM_FORMAT_S8
 249
 250#ifdef SNDRV_LITTLE_ENDIAN
 251#define	SNDRV_PCM_FORMAT_S16		SNDRV_PCM_FORMAT_S16_LE
 252#define	SNDRV_PCM_FORMAT_U16		SNDRV_PCM_FORMAT_U16_LE
 253#define	SNDRV_PCM_FORMAT_S24		SNDRV_PCM_FORMAT_S24_LE
 254#define	SNDRV_PCM_FORMAT_U24		SNDRV_PCM_FORMAT_U24_LE
 255#define	SNDRV_PCM_FORMAT_S32		SNDRV_PCM_FORMAT_S32_LE
 256#define	SNDRV_PCM_FORMAT_U32		SNDRV_PCM_FORMAT_U32_LE
 257#define	SNDRV_PCM_FORMAT_FLOAT		SNDRV_PCM_FORMAT_FLOAT_LE
 258#define	SNDRV_PCM_FORMAT_FLOAT64	SNDRV_PCM_FORMAT_FLOAT64_LE
 259#define	SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE
 260#define	SNDRV_PCM_FORMAT_S20		SNDRV_PCM_FORMAT_S20_LE
 261#define	SNDRV_PCM_FORMAT_U20		SNDRV_PCM_FORMAT_U20_LE
 262#endif
 263#ifdef SNDRV_BIG_ENDIAN
 264#define	SNDRV_PCM_FORMAT_S16		SNDRV_PCM_FORMAT_S16_BE
 265#define	SNDRV_PCM_FORMAT_U16		SNDRV_PCM_FORMAT_U16_BE
 266#define	SNDRV_PCM_FORMAT_S24		SNDRV_PCM_FORMAT_S24_BE
 267#define	SNDRV_PCM_FORMAT_U24		SNDRV_PCM_FORMAT_U24_BE
 268#define	SNDRV_PCM_FORMAT_S32		SNDRV_PCM_FORMAT_S32_BE
 269#define	SNDRV_PCM_FORMAT_U32		SNDRV_PCM_FORMAT_U32_BE
 270#define	SNDRV_PCM_FORMAT_FLOAT		SNDRV_PCM_FORMAT_FLOAT_BE
 271#define	SNDRV_PCM_FORMAT_FLOAT64	SNDRV_PCM_FORMAT_FLOAT64_BE
 272#define	SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE
 273#define	SNDRV_PCM_FORMAT_S20		SNDRV_PCM_FORMAT_S20_BE
 274#define	SNDRV_PCM_FORMAT_U20		SNDRV_PCM_FORMAT_U20_BE
 275#endif
 276
 277typedef int __bitwise snd_pcm_subformat_t;
 278#define	SNDRV_PCM_SUBFORMAT_STD		((__force snd_pcm_subformat_t) 0)
 279#define	SNDRV_PCM_SUBFORMAT_LAST	SNDRV_PCM_SUBFORMAT_STD
 
 
 
 280
 281#define SNDRV_PCM_INFO_MMAP		0x00000001	/* hardware supports mmap */
 282#define SNDRV_PCM_INFO_MMAP_VALID	0x00000002	/* period data are valid during transfer */
 283#define SNDRV_PCM_INFO_DOUBLE		0x00000004	/* Double buffering needed for PCM start/stop */
 284#define SNDRV_PCM_INFO_BATCH		0x00000010	/* double buffering */
 285#define SNDRV_PCM_INFO_SYNC_APPLPTR	0x00000020	/* need the explicit sync of appl_ptr update */
 
 286#define SNDRV_PCM_INFO_INTERLEAVED	0x00000100	/* channels are interleaved */
 287#define SNDRV_PCM_INFO_NONINTERLEAVED	0x00000200	/* channels are not interleaved */
 288#define SNDRV_PCM_INFO_COMPLEX		0x00000400	/* complex frame organization (mmap only) */
 289#define SNDRV_PCM_INFO_BLOCK_TRANSFER	0x00010000	/* hardware transfer block of samples */
 290#define SNDRV_PCM_INFO_OVERRANGE	0x00020000	/* hardware supports ADC (capture) overrange detection */
 291#define SNDRV_PCM_INFO_RESUME		0x00040000	/* hardware supports stream resume after suspend */
 292#define SNDRV_PCM_INFO_PAUSE		0x00080000	/* pause ioctl is supported */
 293#define SNDRV_PCM_INFO_HALF_DUPLEX	0x00100000	/* only half duplex */
 294#define SNDRV_PCM_INFO_JOINT_DUPLEX	0x00200000	/* playback and capture stream are somewhat correlated */
 295#define SNDRV_PCM_INFO_SYNC_START	0x00400000	/* pcm support some kind of sync go */
 296#define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP	0x00800000	/* period wakeup can be disabled */
 297#define SNDRV_PCM_INFO_HAS_WALL_CLOCK   0x01000000      /* (Deprecated)has audio wall clock for audio/system time sync */
 298#define SNDRV_PCM_INFO_HAS_LINK_ATIME              0x01000000  /* report hardware link audio time, reset on startup */
 299#define SNDRV_PCM_INFO_HAS_LINK_ABSOLUTE_ATIME     0x02000000  /* report absolute hardware link audio time, not reset on startup */
 300#define SNDRV_PCM_INFO_HAS_LINK_ESTIMATED_ATIME    0x04000000  /* report estimated link audio time */
 301#define SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME 0x08000000  /* report synchronized audio/system time */
 302
 
 303#define SNDRV_PCM_INFO_DRAIN_TRIGGER	0x40000000		/* internal kernel flag - trigger in drain */
 304#define SNDRV_PCM_INFO_FIFO_IN_FRAMES	0x80000000	/* internal kernel flag - FIFO size is in frames */
 305
 306#if (__BITS_PER_LONG == 32 && defined(__USE_TIME_BITS64)) || defined __KERNEL__
 307#define __SND_STRUCT_TIME64
 308#endif
 309
 310typedef int __bitwise snd_pcm_state_t;
 311#define	SNDRV_PCM_STATE_OPEN		((__force snd_pcm_state_t) 0) /* stream is open */
 312#define	SNDRV_PCM_STATE_SETUP		((__force snd_pcm_state_t) 1) /* stream has a setup */
 313#define	SNDRV_PCM_STATE_PREPARED	((__force snd_pcm_state_t) 2) /* stream is ready to start */
 314#define	SNDRV_PCM_STATE_RUNNING		((__force snd_pcm_state_t) 3) /* stream is running */
 315#define	SNDRV_PCM_STATE_XRUN		((__force snd_pcm_state_t) 4) /* stream reached an xrun */
 316#define	SNDRV_PCM_STATE_DRAINING	((__force snd_pcm_state_t) 5) /* stream is draining */
 317#define	SNDRV_PCM_STATE_PAUSED		((__force snd_pcm_state_t) 6) /* stream is paused */
 318#define	SNDRV_PCM_STATE_SUSPENDED	((__force snd_pcm_state_t) 7) /* hardware is suspended */
 319#define	SNDRV_PCM_STATE_DISCONNECTED	((__force snd_pcm_state_t) 8) /* hardware is disconnected */
 320#define	SNDRV_PCM_STATE_LAST		SNDRV_PCM_STATE_DISCONNECTED
 321
 322enum {
 323	SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000,
 324	SNDRV_PCM_MMAP_OFFSET_STATUS_OLD = 0x80000000,
 325	SNDRV_PCM_MMAP_OFFSET_CONTROL_OLD = 0x81000000,
 326	SNDRV_PCM_MMAP_OFFSET_STATUS_NEW = 0x82000000,
 327	SNDRV_PCM_MMAP_OFFSET_CONTROL_NEW = 0x83000000,
 328#ifdef __SND_STRUCT_TIME64
 329	SNDRV_PCM_MMAP_OFFSET_STATUS = SNDRV_PCM_MMAP_OFFSET_STATUS_NEW,
 330	SNDRV_PCM_MMAP_OFFSET_CONTROL = SNDRV_PCM_MMAP_OFFSET_CONTROL_NEW,
 331#else
 332	SNDRV_PCM_MMAP_OFFSET_STATUS = SNDRV_PCM_MMAP_OFFSET_STATUS_OLD,
 333	SNDRV_PCM_MMAP_OFFSET_CONTROL = SNDRV_PCM_MMAP_OFFSET_CONTROL_OLD,
 334#endif
 335};
 336
 337union snd_pcm_sync_id {
 338	unsigned char id[16];
 339	unsigned short id16[8];
 340	unsigned int id32[4];
 341};
 342
 343struct snd_pcm_info {
 344	unsigned int device;		/* RO/WR (control): device number */
 345	unsigned int subdevice;		/* RO/WR (control): subdevice number */
 346	int stream;			/* RO/WR (control): stream direction */
 347	int card;			/* R: card number */
 348	unsigned char id[64];		/* ID (user selectable) */
 349	unsigned char name[80];		/* name of this device */
 350	unsigned char subname[32];	/* subdevice name */
 351	int dev_class;			/* SNDRV_PCM_CLASS_* */
 352	int dev_subclass;		/* SNDRV_PCM_SUBCLASS_* */
 353	unsigned int subdevices_count;
 354	unsigned int subdevices_avail;
 355	union snd_pcm_sync_id sync;	/* hardware synchronization ID */
 356	unsigned char reserved[64];	/* reserved for future... */
 357};
 358
 359typedef int snd_pcm_hw_param_t;
 360#define	SNDRV_PCM_HW_PARAM_ACCESS	0	/* Access type */
 361#define	SNDRV_PCM_HW_PARAM_FORMAT	1	/* Format */
 362#define	SNDRV_PCM_HW_PARAM_SUBFORMAT	2	/* Subformat */
 363#define	SNDRV_PCM_HW_PARAM_FIRST_MASK	SNDRV_PCM_HW_PARAM_ACCESS
 364#define	SNDRV_PCM_HW_PARAM_LAST_MASK	SNDRV_PCM_HW_PARAM_SUBFORMAT
 365
 366#define	SNDRV_PCM_HW_PARAM_SAMPLE_BITS	8	/* Bits per sample */
 367#define	SNDRV_PCM_HW_PARAM_FRAME_BITS	9	/* Bits per frame */
 368#define	SNDRV_PCM_HW_PARAM_CHANNELS	10	/* Channels */
 369#define	SNDRV_PCM_HW_PARAM_RATE		11	/* Approx rate */
 370#define	SNDRV_PCM_HW_PARAM_PERIOD_TIME	12	/* Approx distance between
 371						 * interrupts in us
 372						 */
 373#define	SNDRV_PCM_HW_PARAM_PERIOD_SIZE	13	/* Approx frames between
 374						 * interrupts
 375						 */
 376#define	SNDRV_PCM_HW_PARAM_PERIOD_BYTES	14	/* Approx bytes between
 377						 * interrupts
 378						 */
 379#define	SNDRV_PCM_HW_PARAM_PERIODS	15	/* Approx interrupts per
 380						 * buffer
 381						 */
 382#define	SNDRV_PCM_HW_PARAM_BUFFER_TIME	16	/* Approx duration of buffer
 383						 * in us
 384						 */
 385#define	SNDRV_PCM_HW_PARAM_BUFFER_SIZE	17	/* Size of buffer in frames */
 386#define	SNDRV_PCM_HW_PARAM_BUFFER_BYTES	18	/* Size of buffer in bytes */
 387#define	SNDRV_PCM_HW_PARAM_TICK_TIME	19	/* Approx tick duration in us */
 388#define	SNDRV_PCM_HW_PARAM_FIRST_INTERVAL	SNDRV_PCM_HW_PARAM_SAMPLE_BITS
 389#define	SNDRV_PCM_HW_PARAM_LAST_INTERVAL	SNDRV_PCM_HW_PARAM_TICK_TIME
 390
 391#define SNDRV_PCM_HW_PARAMS_NORESAMPLE	(1<<0)	/* avoid rate resampling */
 392#define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER	(1<<1)	/* export buffer */
 393#define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP	(1<<2)	/* disable period wakeups */
 
 
 
 394
 395struct snd_interval {
 396	unsigned int min, max;
 397	unsigned int openmin:1,
 398		     openmax:1,
 399		     integer:1,
 400		     empty:1;
 401};
 402
 403#define SNDRV_MASK_MAX	256
 404
 405struct snd_mask {
 406	__u32 bits[(SNDRV_MASK_MAX+31)/32];
 407};
 408
 409struct snd_pcm_hw_params {
 410	unsigned int flags;
 411	struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK -
 412			       SNDRV_PCM_HW_PARAM_FIRST_MASK + 1];
 413	struct snd_mask mres[5];	/* reserved masks */
 414	struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL -
 415				        SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1];
 416	struct snd_interval ires[9];	/* reserved intervals */
 417	unsigned int rmask;		/* W: requested masks */
 418	unsigned int cmask;		/* R: changed masks */
 419	unsigned int info;		/* R: Info flags for returned setup */
 420	unsigned int msbits;		/* R: used most significant bits */
 421	unsigned int rate_num;		/* R: rate numerator */
 422	unsigned int rate_den;		/* R: rate denominator */
 423	snd_pcm_uframes_t fifo_size;	/* R: chip FIFO size in frames */
 424	unsigned char reserved[64];	/* 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	snd_pcm_uframes_t stop_threshold;	/* min avail frames for automatic stop */
 441	snd_pcm_uframes_t silence_threshold;	/* min distance from noise for silence filling */
 442	snd_pcm_uframes_t silence_size;		/* silence block size */
 
 
 
 
 
 443	snd_pcm_uframes_t boundary;		/* pointers wrap point */
 444	unsigned int proto;			/* protocol version */
 445	unsigned int tstamp_type;		/* timestamp type (req. proto >= 2.0.12) */
 446	unsigned char reserved[56];		/* reserved for future */
 447};
 448
 449struct snd_pcm_channel_info {
 450	unsigned int channel;
 451	__kernel_off_t offset;		/* mmap offset */
 452	unsigned int first;		/* offset to first sample in bits */
 453	unsigned int step;		/* samples distance in bits */
 454};
 455
 456enum {
 457	/*
 458	 *  first definition for backwards compatibility only,
 459	 *  maps to wallclock/link time for HDAudio playback and DEFAULT/DMA time for everything else
 460	 */
 461	SNDRV_PCM_AUDIO_TSTAMP_TYPE_COMPAT = 0,
 462
 463	/* timestamp definitions */
 464	SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT = 1,           /* DMA time, reported as per hw_ptr */
 465	SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK = 2,	           /* link time reported by sample or wallclock counter, reset on startup */
 466	SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE = 3,	   /* link time reported by sample or wallclock counter, not reset on startup */
 467	SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED = 4,    /* link time estimated indirectly */
 468	SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED = 5, /* link time synchronized with system time */
 469	SNDRV_PCM_AUDIO_TSTAMP_TYPE_LAST = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED
 470};
 471
 472#ifndef __KERNEL__
 473/* explicit padding avoids incompatibility between i386 and x86-64 */
 474typedef struct { unsigned char pad[sizeof(time_t) - sizeof(int)]; } __time_pad;
 475
 476struct snd_pcm_status {
 477	snd_pcm_state_t state;		/* stream state */
 478	__time_pad pad1;		/* align to timespec */
 479	struct timespec trigger_tstamp;	/* time when stream was started/stopped/paused */
 480	struct timespec tstamp;		/* reference timestamp */
 481	snd_pcm_uframes_t appl_ptr;	/* appl ptr */
 482	snd_pcm_uframes_t hw_ptr;	/* hw ptr */
 483	snd_pcm_sframes_t delay;	/* current delay in frames */
 484	snd_pcm_uframes_t avail;	/* number of frames available */
 485	snd_pcm_uframes_t avail_max;	/* max frames available on hw since last status */
 486	snd_pcm_uframes_t overrange;	/* count of ADC (capture) overrange detections from last status */
 487	snd_pcm_state_t suspended_state; /* suspended stream state */
 488	__u32 audio_tstamp_data;	 /* needed for 64-bit alignment, used for configs/report to/from userspace */
 489	struct timespec audio_tstamp;	/* sample counter, wall clock, PHC or on-demand sync'ed */
 490	struct timespec driver_tstamp;	/* useful in case reference system tstamp is reported with delay */
 491	__u32 audio_tstamp_accuracy;	/* in ns units, only valid if indicated in audio_tstamp_data */
 492	unsigned char reserved[52-2*sizeof(struct timespec)]; /* must be filled with zero */
 493};
 494#endif
 495
 496/*
 497 * For mmap operations, we need the 64-bit layout, both for compat mode,
 498 * and for y2038 compatibility. For 64-bit applications, the two definitions
 499 * are identical, so we keep the traditional version.
 500 */
 501#ifdef __SND_STRUCT_TIME64
 502#define __snd_pcm_mmap_status64		snd_pcm_mmap_status
 503#define __snd_pcm_mmap_control64	snd_pcm_mmap_control
 504#define __snd_pcm_sync_ptr64		snd_pcm_sync_ptr
 505#ifdef __KERNEL__
 506#define __snd_timespec64		__kernel_timespec
 507#else
 508#define __snd_timespec64		timespec
 509#endif
 510struct __snd_timespec {
 511	__s32 tv_sec;
 512	__s32 tv_nsec;
 513};
 514#else
 515#define __snd_pcm_mmap_status		snd_pcm_mmap_status
 516#define __snd_pcm_mmap_control		snd_pcm_mmap_control
 517#define __snd_pcm_sync_ptr		snd_pcm_sync_ptr
 518#define __snd_timespec			timespec
 519struct __snd_timespec64 {
 520	__s64 tv_sec;
 521	__s64 tv_nsec;
 522};
 523
 524#endif
 525
 526struct __snd_pcm_mmap_status {
 527	snd_pcm_state_t state;		/* RO: state - SNDRV_PCM_STATE_XXXX */
 528	int pad1;			/* Needed for 64 bit alignment */
 529	snd_pcm_uframes_t hw_ptr;	/* RO: hw ptr (0...boundary-1) */
 530	struct __snd_timespec tstamp;	/* Timestamp */
 531	snd_pcm_state_t suspended_state; /* RO: suspended stream state */
 532	struct __snd_timespec audio_tstamp; /* from sample counter or wall clock */
 533};
 534
 535struct __snd_pcm_mmap_control {
 536	snd_pcm_uframes_t appl_ptr;	/* RW: appl ptr (0...boundary-1) */
 537	snd_pcm_uframes_t avail_min;	/* RW: min available frames for wakeup */
 538};
 539
 540#define SNDRV_PCM_SYNC_PTR_HWSYNC	(1<<0)	/* execute hwsync */
 541#define SNDRV_PCM_SYNC_PTR_APPL		(1<<1)	/* get appl_ptr from driver (r/w op) */
 542#define SNDRV_PCM_SYNC_PTR_AVAIL_MIN	(1<<2)	/* get avail_min from driver */
 543
 544struct __snd_pcm_sync_ptr {
 545	unsigned int flags;
 546	union {
 547		struct __snd_pcm_mmap_status status;
 548		unsigned char reserved[64];
 549	} s;
 550	union {
 551		struct __snd_pcm_mmap_control control;
 552		unsigned char reserved[64];
 553	} c;
 554};
 555
 556#if defined(__BYTE_ORDER) ? __BYTE_ORDER == __BIG_ENDIAN : defined(__BIG_ENDIAN)
 557typedef char __pad_before_uframe[sizeof(__u64) - sizeof(snd_pcm_uframes_t)];
 558typedef char __pad_after_uframe[0];
 559#endif
 560
 561#if defined(__BYTE_ORDER) ? __BYTE_ORDER == __LITTLE_ENDIAN : defined(__LITTLE_ENDIAN)
 562typedef char __pad_before_uframe[0];
 563typedef char __pad_after_uframe[sizeof(__u64) - sizeof(snd_pcm_uframes_t)];
 564#endif
 565
 566struct __snd_pcm_mmap_status64 {
 567	snd_pcm_state_t state;		/* RO: state - SNDRV_PCM_STATE_XXXX */
 568	__u32 pad1;			/* Needed for 64 bit alignment */
 569	__pad_before_uframe __pad1;
 570	snd_pcm_uframes_t hw_ptr;	/* RO: hw ptr (0...boundary-1) */
 571	__pad_after_uframe __pad2;
 572	struct __snd_timespec64 tstamp;	/* Timestamp */
 573	snd_pcm_state_t suspended_state;/* RO: suspended stream state */
 574	__u32 pad3;			/* Needed for 64 bit alignment */
 575	struct __snd_timespec64 audio_tstamp; /* sample counter or wall clock */
 576};
 577
 578struct __snd_pcm_mmap_control64 {
 579	__pad_before_uframe __pad1;
 580	snd_pcm_uframes_t appl_ptr;	 /* RW: appl ptr (0...boundary-1) */
 581	__pad_before_uframe __pad2;
 
 582
 583	__pad_before_uframe __pad3;
 584	snd_pcm_uframes_t  avail_min;	 /* RW: min available frames for wakeup */
 585	__pad_after_uframe __pad4;
 586};
 587
 588struct __snd_pcm_sync_ptr64 {
 589	__u32 flags;
 590	__u32 pad1;
 591	union {
 592		struct __snd_pcm_mmap_status64 status;
 593		unsigned char reserved[64];
 594	} s;
 595	union {
 596		struct __snd_pcm_mmap_control64 control;
 597		unsigned char reserved[64];
 598	} c;
 599};
 600
 601struct snd_xferi {
 602	snd_pcm_sframes_t result;
 603	void __user *buf;
 604	snd_pcm_uframes_t frames;
 605};
 606
 607struct snd_xfern {
 608	snd_pcm_sframes_t result;
 609	void __user * __user *bufs;
 610	snd_pcm_uframes_t frames;
 611};
 612
 613enum {
 614	SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0,	/* gettimeofday equivalent */
 615	SNDRV_PCM_TSTAMP_TYPE_MONOTONIC,	/* posix_clock_monotonic equivalent */
 616	SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW,    /* monotonic_raw (no NTP) */
 617	SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW,
 618};
 619
 620/* channel positions */
 621enum {
 622	SNDRV_CHMAP_UNKNOWN = 0,
 623	SNDRV_CHMAP_NA,		/* N/A, silent */
 624	SNDRV_CHMAP_MONO,	/* mono stream */
 625	/* this follows the alsa-lib mixer channel value + 3 */
 626	SNDRV_CHMAP_FL,		/* front left */
 627	SNDRV_CHMAP_FR,		/* front right */
 628	SNDRV_CHMAP_RL,		/* rear left */
 629	SNDRV_CHMAP_RR,		/* rear right */
 630	SNDRV_CHMAP_FC,		/* front center */
 631	SNDRV_CHMAP_LFE,	/* LFE */
 632	SNDRV_CHMAP_SL,		/* side left */
 633	SNDRV_CHMAP_SR,		/* side right */
 634	SNDRV_CHMAP_RC,		/* rear center */
 635	/* new definitions */
 636	SNDRV_CHMAP_FLC,	/* front left center */
 637	SNDRV_CHMAP_FRC,	/* front right center */
 638	SNDRV_CHMAP_RLC,	/* rear left center */
 639	SNDRV_CHMAP_RRC,	/* rear right center */
 640	SNDRV_CHMAP_FLW,	/* front left wide */
 641	SNDRV_CHMAP_FRW,	/* front right wide */
 642	SNDRV_CHMAP_FLH,	/* front left high */
 643	SNDRV_CHMAP_FCH,	/* front center high */
 644	SNDRV_CHMAP_FRH,	/* front right high */
 645	SNDRV_CHMAP_TC,		/* top center */
 646	SNDRV_CHMAP_TFL,	/* top front left */
 647	SNDRV_CHMAP_TFR,	/* top front right */
 648	SNDRV_CHMAP_TFC,	/* top front center */
 649	SNDRV_CHMAP_TRL,	/* top rear left */
 650	SNDRV_CHMAP_TRR,	/* top rear right */
 651	SNDRV_CHMAP_TRC,	/* top rear center */
 652	/* new definitions for UAC2 */
 653	SNDRV_CHMAP_TFLC,	/* top front left center */
 654	SNDRV_CHMAP_TFRC,	/* top front right center */
 655	SNDRV_CHMAP_TSL,	/* top side left */
 656	SNDRV_CHMAP_TSR,	/* top side right */
 657	SNDRV_CHMAP_LLFE,	/* left LFE */
 658	SNDRV_CHMAP_RLFE,	/* right LFE */
 659	SNDRV_CHMAP_BC,		/* bottom center */
 660	SNDRV_CHMAP_BLC,	/* bottom left center */
 661	SNDRV_CHMAP_BRC,	/* bottom right center */
 662	SNDRV_CHMAP_LAST = SNDRV_CHMAP_BRC,
 663};
 664
 665#define SNDRV_CHMAP_POSITION_MASK	0xffff
 666#define SNDRV_CHMAP_PHASE_INVERSE	(0x01 << 16)
 667#define SNDRV_CHMAP_DRIVER_SPEC		(0x02 << 16)
 668
 669#define SNDRV_PCM_IOCTL_PVERSION	_IOR('A', 0x00, int)
 670#define SNDRV_PCM_IOCTL_INFO		_IOR('A', 0x01, struct snd_pcm_info)
 671#define SNDRV_PCM_IOCTL_TSTAMP		_IOW('A', 0x02, int)
 672#define SNDRV_PCM_IOCTL_TTSTAMP		_IOW('A', 0x03, int)
 673#define SNDRV_PCM_IOCTL_USER_PVERSION	_IOW('A', 0x04, int)
 674#define SNDRV_PCM_IOCTL_HW_REFINE	_IOWR('A', 0x10, struct snd_pcm_hw_params)
 675#define SNDRV_PCM_IOCTL_HW_PARAMS	_IOWR('A', 0x11, struct snd_pcm_hw_params)
 676#define SNDRV_PCM_IOCTL_HW_FREE		_IO('A', 0x12)
 677#define SNDRV_PCM_IOCTL_SW_PARAMS	_IOWR('A', 0x13, struct snd_pcm_sw_params)
 678#define SNDRV_PCM_IOCTL_STATUS		_IOR('A', 0x20, struct snd_pcm_status)
 679#define SNDRV_PCM_IOCTL_DELAY		_IOR('A', 0x21, snd_pcm_sframes_t)
 680#define SNDRV_PCM_IOCTL_HWSYNC		_IO('A', 0x22)
 681#define __SNDRV_PCM_IOCTL_SYNC_PTR	_IOWR('A', 0x23, struct __snd_pcm_sync_ptr)
 682#define __SNDRV_PCM_IOCTL_SYNC_PTR64	_IOWR('A', 0x23, struct __snd_pcm_sync_ptr64)
 683#define SNDRV_PCM_IOCTL_SYNC_PTR	_IOWR('A', 0x23, struct snd_pcm_sync_ptr)
 684#define SNDRV_PCM_IOCTL_STATUS_EXT	_IOWR('A', 0x24, struct snd_pcm_status)
 685#define SNDRV_PCM_IOCTL_CHANNEL_INFO	_IOR('A', 0x32, struct snd_pcm_channel_info)
 686#define SNDRV_PCM_IOCTL_PREPARE		_IO('A', 0x40)
 687#define SNDRV_PCM_IOCTL_RESET		_IO('A', 0x41)
 688#define SNDRV_PCM_IOCTL_START		_IO('A', 0x42)
 689#define SNDRV_PCM_IOCTL_DROP		_IO('A', 0x43)
 690#define SNDRV_PCM_IOCTL_DRAIN		_IO('A', 0x44)
 691#define SNDRV_PCM_IOCTL_PAUSE		_IOW('A', 0x45, int)
 692#define SNDRV_PCM_IOCTL_REWIND		_IOW('A', 0x46, snd_pcm_uframes_t)
 693#define SNDRV_PCM_IOCTL_RESUME		_IO('A', 0x47)
 694#define SNDRV_PCM_IOCTL_XRUN		_IO('A', 0x48)
 695#define SNDRV_PCM_IOCTL_FORWARD		_IOW('A', 0x49, snd_pcm_uframes_t)
 696#define SNDRV_PCM_IOCTL_WRITEI_FRAMES	_IOW('A', 0x50, struct snd_xferi)
 697#define SNDRV_PCM_IOCTL_READI_FRAMES	_IOR('A', 0x51, struct snd_xferi)
 698#define SNDRV_PCM_IOCTL_WRITEN_FRAMES	_IOW('A', 0x52, struct snd_xfern)
 699#define SNDRV_PCM_IOCTL_READN_FRAMES	_IOR('A', 0x53, struct snd_xfern)
 700#define SNDRV_PCM_IOCTL_LINK		_IOW('A', 0x60, int)
 701#define SNDRV_PCM_IOCTL_UNLINK		_IO('A', 0x61)
 702
 703/*****************************************************************************
 704 *                                                                           *
 705 *                            MIDI v1.0 interface                            *
 706 *                                                                           *
 707 *****************************************************************************/
 708
 709/*
 710 *  Raw MIDI section - /dev/snd/midi??
 711 */
 712
 713#define SNDRV_RAWMIDI_VERSION		SNDRV_PROTOCOL_VERSION(2, 0, 1)
 714
 715enum {
 716	SNDRV_RAWMIDI_STREAM_OUTPUT = 0,
 717	SNDRV_RAWMIDI_STREAM_INPUT,
 718	SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT,
 719};
 720
 721#define SNDRV_RAWMIDI_INFO_OUTPUT		0x00000001
 722#define SNDRV_RAWMIDI_INFO_INPUT		0x00000002
 723#define SNDRV_RAWMIDI_INFO_DUPLEX		0x00000004
 
 724
 725struct snd_rawmidi_info {
 726	unsigned int device;		/* RO/WR (control): device number */
 727	unsigned int subdevice;		/* RO/WR (control): subdevice number */
 728	int stream;			/* WR: stream */
 729	int card;			/* R: card number */
 730	unsigned int flags;		/* SNDRV_RAWMIDI_INFO_XXXX */
 731	unsigned char id[64];		/* ID (user selectable) */
 732	unsigned char name[80];		/* name of device */
 733	unsigned char subname[32];	/* name of active or selected subdevice */
 734	unsigned int subdevices_count;
 735	unsigned int subdevices_avail;
 736	unsigned char reserved[64];	/* reserved for future use */
 737};
 738
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 739struct snd_rawmidi_params {
 740	int stream;
 741	size_t buffer_size;		/* queue size in bytes */
 742	size_t avail_min;		/* minimum avail bytes for wakeup */
 743	unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */
 744	unsigned char reserved[16];	/* reserved for future use */
 
 745};
 746
 747#ifndef __KERNEL__
 748struct snd_rawmidi_status {
 749	int stream;
 750	__time_pad pad1;
 751	struct timespec tstamp;		/* Timestamp */
 752	size_t avail;			/* available bytes */
 753	size_t xruns;			/* count of overruns since last status (in bytes) */
 754	unsigned char reserved[16];	/* reserved for future use */
 755};
 756#endif
 757
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 758#define SNDRV_RAWMIDI_IOCTL_PVERSION	_IOR('W', 0x00, int)
 759#define SNDRV_RAWMIDI_IOCTL_INFO	_IOR('W', 0x01, struct snd_rawmidi_info)
 
 760#define SNDRV_RAWMIDI_IOCTL_PARAMS	_IOWR('W', 0x10, struct snd_rawmidi_params)
 761#define SNDRV_RAWMIDI_IOCTL_STATUS	_IOWR('W', 0x20, struct snd_rawmidi_status)
 762#define SNDRV_RAWMIDI_IOCTL_DROP	_IOW('W', 0x30, int)
 763#define SNDRV_RAWMIDI_IOCTL_DRAIN	_IOW('W', 0x31, int)
 
 
 
 764
 765/*
 766 *  Timer section - /dev/snd/timer
 767 */
 768
 769#define SNDRV_TIMER_VERSION		SNDRV_PROTOCOL_VERSION(2, 0, 7)
 770
 771enum {
 772	SNDRV_TIMER_CLASS_NONE = -1,
 773	SNDRV_TIMER_CLASS_SLAVE = 0,
 774	SNDRV_TIMER_CLASS_GLOBAL,
 775	SNDRV_TIMER_CLASS_CARD,
 776	SNDRV_TIMER_CLASS_PCM,
 777	SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM,
 778};
 779
 780/* slave timer classes */
 781enum {
 782	SNDRV_TIMER_SCLASS_NONE = 0,
 783	SNDRV_TIMER_SCLASS_APPLICATION,
 784	SNDRV_TIMER_SCLASS_SEQUENCER,		/* alias */
 785	SNDRV_TIMER_SCLASS_OSS_SEQUENCER,	/* alias */
 786	SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER,
 787};
 788
 789/* global timers (device member) */
 790#define SNDRV_TIMER_GLOBAL_SYSTEM	0
 791#define SNDRV_TIMER_GLOBAL_RTC		1	/* unused */
 792#define SNDRV_TIMER_GLOBAL_HPET		2
 793#define SNDRV_TIMER_GLOBAL_HRTIMER	3
 794
 795/* info flags */
 796#define SNDRV_TIMER_FLG_SLAVE		(1<<0)	/* cannot be controlled */
 797
 798struct snd_timer_id {
 799	int dev_class;
 800	int dev_sclass;
 801	int card;
 802	int device;
 803	int subdevice;
 804};
 805
 806struct snd_timer_ginfo {
 807	struct snd_timer_id tid;	/* requested timer ID */
 808	unsigned int flags;		/* timer flags - SNDRV_TIMER_FLG_* */
 809	int card;			/* card number */
 810	unsigned char id[64];		/* timer identification */
 811	unsigned char name[80];		/* timer name */
 812	unsigned long reserved0;	/* reserved for future use */
 813	unsigned long resolution;	/* average period resolution in ns */
 814	unsigned long resolution_min;	/* minimal period resolution in ns */
 815	unsigned long resolution_max;	/* maximal period resolution in ns */
 816	unsigned int clients;		/* active timer clients */
 817	unsigned char reserved[32];
 818};
 819
 820struct snd_timer_gparams {
 821	struct snd_timer_id tid;	/* requested timer ID */
 822	unsigned long period_num;	/* requested precise period duration (in seconds) - numerator */
 823	unsigned long period_den;	/* requested precise period duration (in seconds) - denominator */
 824	unsigned char reserved[32];
 825};
 826
 827struct snd_timer_gstatus {
 828	struct snd_timer_id tid;	/* requested timer ID */
 829	unsigned long resolution;	/* current period resolution in ns */
 830	unsigned long resolution_num;	/* precise current period resolution (in seconds) - numerator */
 831	unsigned long resolution_den;	/* precise current period resolution (in seconds) - denominator */
 832	unsigned char reserved[32];
 833};
 834
 835struct snd_timer_select {
 836	struct snd_timer_id id;	/* bind to timer ID */
 837	unsigned char reserved[32];	/* reserved */
 838};
 839
 840struct snd_timer_info {
 841	unsigned int flags;		/* timer flags - SNDRV_TIMER_FLG_* */
 842	int card;			/* card number */
 843	unsigned char id[64];		/* timer identificator */
 844	unsigned char name[80];		/* timer name */
 845	unsigned long reserved0;	/* reserved for future use */
 846	unsigned long resolution;	/* average period resolution in ns */
 847	unsigned char reserved[64];	/* reserved */
 848};
 849
 850#define SNDRV_TIMER_PSFLG_AUTO		(1<<0)	/* auto start, otherwise one-shot */
 851#define SNDRV_TIMER_PSFLG_EXCLUSIVE	(1<<1)	/* exclusive use, precise start/stop/pause/continue */
 852#define SNDRV_TIMER_PSFLG_EARLY_EVENT	(1<<2)	/* write early event to the poll queue */
 853
 854struct snd_timer_params {
 855	unsigned int flags;		/* flags - SNDRV_TIMER_PSFLG_* */
 856	unsigned int ticks;		/* requested resolution in ticks */
 857	unsigned int queue_size;	/* total size of queue (32-1024) */
 858	unsigned int reserved0;		/* reserved, was: failure locations */
 859	unsigned int filter;		/* event filter (bitmask of SNDRV_TIMER_EVENT_*) */
 860	unsigned char reserved[60];	/* reserved */
 861};
 862
 863#ifndef __KERNEL__
 864struct snd_timer_status {
 865	struct timespec tstamp;		/* Timestamp - last update */
 866	unsigned int resolution;	/* current period resolution in ns */
 867	unsigned int lost;		/* counter of master tick lost */
 868	unsigned int overrun;		/* count of read queue overruns */
 869	unsigned int queue;		/* used queue size */
 870	unsigned char reserved[64];	/* reserved */
 871};
 872#endif
 873
 874#define SNDRV_TIMER_IOCTL_PVERSION	_IOR('T', 0x00, int)
 875#define SNDRV_TIMER_IOCTL_NEXT_DEVICE	_IOWR('T', 0x01, struct snd_timer_id)
 876#define SNDRV_TIMER_IOCTL_TREAD_OLD	_IOW('T', 0x02, int)
 877#define SNDRV_TIMER_IOCTL_GINFO		_IOWR('T', 0x03, struct snd_timer_ginfo)
 878#define SNDRV_TIMER_IOCTL_GPARAMS	_IOW('T', 0x04, struct snd_timer_gparams)
 879#define SNDRV_TIMER_IOCTL_GSTATUS	_IOWR('T', 0x05, struct snd_timer_gstatus)
 880#define SNDRV_TIMER_IOCTL_SELECT	_IOW('T', 0x10, struct snd_timer_select)
 881#define SNDRV_TIMER_IOCTL_INFO		_IOR('T', 0x11, struct snd_timer_info)
 882#define SNDRV_TIMER_IOCTL_PARAMS	_IOW('T', 0x12, struct snd_timer_params)
 883#define SNDRV_TIMER_IOCTL_STATUS	_IOR('T', 0x14, struct snd_timer_status)
 884/* The following four ioctls are changed since 1.0.9 due to confliction */
 885#define SNDRV_TIMER_IOCTL_START		_IO('T', 0xa0)
 886#define SNDRV_TIMER_IOCTL_STOP		_IO('T', 0xa1)
 887#define SNDRV_TIMER_IOCTL_CONTINUE	_IO('T', 0xa2)
 888#define SNDRV_TIMER_IOCTL_PAUSE		_IO('T', 0xa3)
 889#define SNDRV_TIMER_IOCTL_TREAD64	_IOW('T', 0xa4, int)
 890
 891#if __BITS_PER_LONG == 64
 892#define SNDRV_TIMER_IOCTL_TREAD SNDRV_TIMER_IOCTL_TREAD_OLD
 893#else
 894#define SNDRV_TIMER_IOCTL_TREAD ((sizeof(__kernel_long_t) >= sizeof(time_t)) ? \
 895				 SNDRV_TIMER_IOCTL_TREAD_OLD : \
 896				 SNDRV_TIMER_IOCTL_TREAD64)
 897#endif
 898
 899struct snd_timer_read {
 900	unsigned int resolution;
 901	unsigned int ticks;
 902};
 903
 904enum {
 905	SNDRV_TIMER_EVENT_RESOLUTION = 0,	/* val = resolution in ns */
 906	SNDRV_TIMER_EVENT_TICK,			/* val = ticks */
 907	SNDRV_TIMER_EVENT_START,		/* val = resolution in ns */
 908	SNDRV_TIMER_EVENT_STOP,			/* val = 0 */
 909	SNDRV_TIMER_EVENT_CONTINUE,		/* val = resolution in ns */
 910	SNDRV_TIMER_EVENT_PAUSE,		/* val = 0 */
 911	SNDRV_TIMER_EVENT_EARLY,		/* val = 0, early event */
 912	SNDRV_TIMER_EVENT_SUSPEND,		/* val = 0 */
 913	SNDRV_TIMER_EVENT_RESUME,		/* val = resolution in ns */
 914	/* master timer events for slave timer instances */
 915	SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10,
 916	SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10,
 917	SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10,
 918	SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10,
 919	SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10,
 920	SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10,
 921};
 922
 923#ifndef __KERNEL__
 924struct snd_timer_tread {
 925	int event;
 926	__time_pad pad1;
 927	struct timespec tstamp;
 928	unsigned int val;
 929	__time_pad pad2;
 930};
 931#endif
 932
 933/****************************************************************************
 934 *                                                                          *
 935 *        Section for driver control interface - /dev/snd/control?          *
 936 *                                                                          *
 937 ****************************************************************************/
 938
 939#define SNDRV_CTL_VERSION		SNDRV_PROTOCOL_VERSION(2, 0, 8)
 940
 941struct snd_ctl_card_info {
 942	int card;			/* card number */
 943	int pad;			/* reserved for future (was type) */
 944	unsigned char id[16];		/* ID of card (user selectable) */
 945	unsigned char driver[16];	/* Driver name */
 946	unsigned char name[32];		/* Short name of soundcard */
 947	unsigned char longname[80];	/* name + info text about soundcard */
 948	unsigned char reserved_[16];	/* reserved for future (was ID of mixer) */
 949	unsigned char mixername[80];	/* visual mixer identification */
 950	unsigned char components[128];	/* card components / fine identification, delimited with one space (AC97 etc..) */
 951};
 952
 953typedef int __bitwise snd_ctl_elem_type_t;
 954#define	SNDRV_CTL_ELEM_TYPE_NONE	((__force snd_ctl_elem_type_t) 0) /* invalid */
 955#define	SNDRV_CTL_ELEM_TYPE_BOOLEAN	((__force snd_ctl_elem_type_t) 1) /* boolean type */
 956#define	SNDRV_CTL_ELEM_TYPE_INTEGER	((__force snd_ctl_elem_type_t) 2) /* integer type */
 957#define	SNDRV_CTL_ELEM_TYPE_ENUMERATED	((__force snd_ctl_elem_type_t) 3) /* enumerated type */
 958#define	SNDRV_CTL_ELEM_TYPE_BYTES	((__force snd_ctl_elem_type_t) 4) /* byte array */
 959#define	SNDRV_CTL_ELEM_TYPE_IEC958	((__force snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */
 960#define	SNDRV_CTL_ELEM_TYPE_INTEGER64	((__force snd_ctl_elem_type_t) 6) /* 64-bit integer type */
 961#define	SNDRV_CTL_ELEM_TYPE_LAST	SNDRV_CTL_ELEM_TYPE_INTEGER64
 962
 963typedef int __bitwise snd_ctl_elem_iface_t;
 964#define	SNDRV_CTL_ELEM_IFACE_CARD	((__force snd_ctl_elem_iface_t) 0) /* global control */
 965#define	SNDRV_CTL_ELEM_IFACE_HWDEP	((__force snd_ctl_elem_iface_t) 1) /* hardware dependent device */
 966#define	SNDRV_CTL_ELEM_IFACE_MIXER	((__force snd_ctl_elem_iface_t) 2) /* virtual mixer device */
 967#define	SNDRV_CTL_ELEM_IFACE_PCM	((__force snd_ctl_elem_iface_t) 3) /* PCM device */
 968#define	SNDRV_CTL_ELEM_IFACE_RAWMIDI	((__force snd_ctl_elem_iface_t) 4) /* RawMidi device */
 969#define	SNDRV_CTL_ELEM_IFACE_TIMER	((__force snd_ctl_elem_iface_t) 5) /* timer device */
 970#define	SNDRV_CTL_ELEM_IFACE_SEQUENCER	((__force snd_ctl_elem_iface_t) 6) /* sequencer client */
 971#define	SNDRV_CTL_ELEM_IFACE_LAST	SNDRV_CTL_ELEM_IFACE_SEQUENCER
 972
 973#define SNDRV_CTL_ELEM_ACCESS_READ		(1<<0)
 974#define SNDRV_CTL_ELEM_ACCESS_WRITE		(1<<1)
 975#define SNDRV_CTL_ELEM_ACCESS_READWRITE		(SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE)
 976#define SNDRV_CTL_ELEM_ACCESS_VOLATILE		(1<<2)	/* control value may be changed without a notification */
 977// (1 << 3) is unused.
 978#define SNDRV_CTL_ELEM_ACCESS_TLV_READ		(1<<4)	/* TLV read is possible */
 979#define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE		(1<<5)	/* TLV write is possible */
 980#define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE	(SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE)
 981#define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND	(1<<6)	/* TLV command is possible */
 982#define SNDRV_CTL_ELEM_ACCESS_INACTIVE		(1<<8)	/* control does actually nothing, but may be updated */
 983#define SNDRV_CTL_ELEM_ACCESS_LOCK		(1<<9)	/* write lock */
 984#define SNDRV_CTL_ELEM_ACCESS_OWNER		(1<<10)	/* write lock owner */
 985#define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK	(1<<28)	/* kernel use a TLV callback */
 986#define SNDRV_CTL_ELEM_ACCESS_USER		(1<<29) /* user space element */
 987/* bits 30 and 31 are obsoleted (for indirect access) */
 988
 989/* for further details see the ACPI and PCI power management specification */
 990#define SNDRV_CTL_POWER_D0		0x0000	/* full On */
 991#define SNDRV_CTL_POWER_D1		0x0100	/* partial On */
 992#define SNDRV_CTL_POWER_D2		0x0200	/* partial On */
 993#define SNDRV_CTL_POWER_D3		0x0300	/* Off */
 994#define SNDRV_CTL_POWER_D3hot		(SNDRV_CTL_POWER_D3|0x0000)	/* Off, with power */
 995#define SNDRV_CTL_POWER_D3cold		(SNDRV_CTL_POWER_D3|0x0001)	/* Off, without power */
 996
 997#define SNDRV_CTL_ELEM_ID_NAME_MAXLEN	44
 998
 999struct snd_ctl_elem_id {
1000	unsigned int numid;		/* numeric identifier, zero = invalid */
1001	snd_ctl_elem_iface_t iface;	/* interface identifier */
1002	unsigned int device;		/* device/client number */
1003	unsigned int subdevice;		/* subdevice (substream) number */
1004	unsigned char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];		/* ASCII name of item */
1005	unsigned int index;		/* index of item */
1006};
1007
1008struct snd_ctl_elem_list {
1009	unsigned int offset;		/* W: first element ID to get */
1010	unsigned int space;		/* W: count of element IDs to get */
1011	unsigned int used;		/* R: count of element IDs set */
1012	unsigned int count;		/* R: count of all elements */
1013	struct snd_ctl_elem_id __user *pids; /* R: IDs */
1014	unsigned char reserved[50];
1015};
1016
1017struct snd_ctl_elem_info {
1018	struct snd_ctl_elem_id id;	/* W: element ID */
1019	snd_ctl_elem_type_t type;	/* R: value type - SNDRV_CTL_ELEM_TYPE_* */
1020	unsigned int access;		/* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */
1021	unsigned int count;		/* count of values */
1022	__kernel_pid_t owner;		/* owner's PID of this control */
1023	union {
1024		struct {
1025			long min;		/* R: minimum value */
1026			long max;		/* R: maximum value */
1027			long step;		/* R: step (0 variable) */
1028		} integer;
1029		struct {
1030			long long min;		/* R: minimum value */
1031			long long max;		/* R: maximum value */
1032			long long step;		/* R: step (0 variable) */
1033		} integer64;
1034		struct {
1035			unsigned int items;	/* R: number of items */
1036			unsigned int item;	/* W: item number */
1037			char name[64];		/* R: value name */
1038			__u64 names_ptr;	/* W: names list (ELEM_ADD only) */
1039			unsigned int names_length;
1040		} enumerated;
1041		unsigned char reserved[128];
1042	} value;
1043	unsigned char reserved[64];
1044};
1045
1046struct snd_ctl_elem_value {
1047	struct snd_ctl_elem_id id;	/* W: element ID */
1048	unsigned int indirect: 1;	/* W: indirect access - obsoleted */
1049	union {
1050		union {
1051			long value[128];
1052			long *value_ptr;	/* obsoleted */
1053		} integer;
1054		union {
1055			long long value[64];
1056			long long *value_ptr;	/* obsoleted */
1057		} integer64;
1058		union {
1059			unsigned int item[128];
1060			unsigned int *item_ptr;	/* obsoleted */
1061		} enumerated;
1062		union {
1063			unsigned char data[512];
1064			unsigned char *data_ptr;	/* obsoleted */
1065		} bytes;
1066		struct snd_aes_iec958 iec958;
1067	} value;		/* RO */
1068	unsigned char reserved[128];
1069};
1070
1071struct snd_ctl_tlv {
1072	unsigned int numid;	/* control element numeric identification */
1073	unsigned int length;	/* in bytes aligned to 4 */
1074	unsigned int tlv[0];	/* first TLV */
1075};
1076
1077#define SNDRV_CTL_IOCTL_PVERSION	_IOR('U', 0x00, int)
1078#define SNDRV_CTL_IOCTL_CARD_INFO	_IOR('U', 0x01, struct snd_ctl_card_info)
1079#define SNDRV_CTL_IOCTL_ELEM_LIST	_IOWR('U', 0x10, struct snd_ctl_elem_list)
1080#define SNDRV_CTL_IOCTL_ELEM_INFO	_IOWR('U', 0x11, struct snd_ctl_elem_info)
1081#define SNDRV_CTL_IOCTL_ELEM_READ	_IOWR('U', 0x12, struct snd_ctl_elem_value)
1082#define SNDRV_CTL_IOCTL_ELEM_WRITE	_IOWR('U', 0x13, struct snd_ctl_elem_value)
1083#define SNDRV_CTL_IOCTL_ELEM_LOCK	_IOW('U', 0x14, struct snd_ctl_elem_id)
1084#define SNDRV_CTL_IOCTL_ELEM_UNLOCK	_IOW('U', 0x15, struct snd_ctl_elem_id)
1085#define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int)
1086#define SNDRV_CTL_IOCTL_ELEM_ADD	_IOWR('U', 0x17, struct snd_ctl_elem_info)
1087#define SNDRV_CTL_IOCTL_ELEM_REPLACE	_IOWR('U', 0x18, struct snd_ctl_elem_info)
1088#define SNDRV_CTL_IOCTL_ELEM_REMOVE	_IOWR('U', 0x19, struct snd_ctl_elem_id)
1089#define SNDRV_CTL_IOCTL_TLV_READ	_IOWR('U', 0x1a, struct snd_ctl_tlv)
1090#define SNDRV_CTL_IOCTL_TLV_WRITE	_IOWR('U', 0x1b, struct snd_ctl_tlv)
1091#define SNDRV_CTL_IOCTL_TLV_COMMAND	_IOWR('U', 0x1c, struct snd_ctl_tlv)
1092#define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int)
1093#define SNDRV_CTL_IOCTL_HWDEP_INFO	_IOR('U', 0x21, struct snd_hwdep_info)
1094#define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE	_IOR('U', 0x30, int)
1095#define SNDRV_CTL_IOCTL_PCM_INFO	_IOWR('U', 0x31, struct snd_pcm_info)
1096#define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int)
1097#define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int)
1098#define SNDRV_CTL_IOCTL_RAWMIDI_INFO	_IOWR('U', 0x41, struct snd_rawmidi_info)
1099#define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int)
 
 
 
1100#define SNDRV_CTL_IOCTL_POWER		_IOWR('U', 0xd0, int)
1101#define SNDRV_CTL_IOCTL_POWER_STATE	_IOR('U', 0xd1, int)
1102
1103/*
1104 *  Read interface.
1105 */
1106
1107enum sndrv_ctl_event_type {
1108	SNDRV_CTL_EVENT_ELEM = 0,
1109	SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM,
1110};
1111
1112#define SNDRV_CTL_EVENT_MASK_VALUE	(1<<0)	/* element value was changed */
1113#define SNDRV_CTL_EVENT_MASK_INFO	(1<<1)	/* element info was changed */
1114#define SNDRV_CTL_EVENT_MASK_ADD	(1<<2)	/* element was added */
1115#define SNDRV_CTL_EVENT_MASK_TLV	(1<<3)	/* element TLV tree was changed */
1116#define SNDRV_CTL_EVENT_MASK_REMOVE	(~0U)	/* element was removed */
1117
1118struct snd_ctl_event {
1119	int type;	/* event type - SNDRV_CTL_EVENT_* */
1120	union {
1121		struct {
1122			unsigned int mask;
1123			struct snd_ctl_elem_id id;
1124		} elem;
1125		unsigned char data8[60];
1126	} data;
1127};
1128
1129/*
1130 *  Control names
1131 */
1132
1133#define SNDRV_CTL_NAME_NONE				""
1134#define SNDRV_CTL_NAME_PLAYBACK				"Playback "
1135#define SNDRV_CTL_NAME_CAPTURE				"Capture "
1136
1137#define SNDRV_CTL_NAME_IEC958_NONE			""
1138#define SNDRV_CTL_NAME_IEC958_SWITCH			"Switch"
1139#define SNDRV_CTL_NAME_IEC958_VOLUME			"Volume"
1140#define SNDRV_CTL_NAME_IEC958_DEFAULT			"Default"
1141#define SNDRV_CTL_NAME_IEC958_MASK			"Mask"
1142#define SNDRV_CTL_NAME_IEC958_CON_MASK			"Con Mask"
1143#define SNDRV_CTL_NAME_IEC958_PRO_MASK			"Pro Mask"
1144#define SNDRV_CTL_NAME_IEC958_PCM_STREAM		"PCM Stream"
1145#define SNDRV_CTL_NAME_IEC958(expl,direction,what)	"IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what
1146
1147#endif /* _UAPI__SOUND_ASOUND_H */