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Merge tag 'for-6.4-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
[linux-block.git] / include / uapi / sound / asound.h
CommitLineData
e2be04c7 1/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
674e95ca
DH		 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>
674e95ca
DH		 6 */
7
8#ifndef _UAPI__SOUND_ASOUND_H
9#define _UAPI__SOUND_ASOUND_H
10
59e42827 11#if defined(__KERNEL__) || defined(__linux__)
674e95ca 12#include <linux/types.h>
7fd7d6c5 13#include <asm/byteorder.h>
59e42827 14#else
7fd7d6c5 15#include <endian.h>
59e42827
TK		 16#include <sys/ioctl.h>
17#endif
674e95ca 18
4bebf709
MR		 19#ifndef __KERNEL__
20#include <stdlib.h>
b5bdbb6c 21#include <time.h>
4bebf709 22#endif
674e95ca
DH		 23
24/*
25 * protocol version
26 */
27
28#define SNDRV_PROTOCOL_VERSION(major, minor, subminor) (((major)<<16)|((minor)<<8)|(subminor))
29#define SNDRV_PROTOCOL_MAJOR(version) (((version)>>16)&0xffff)
30#define SNDRV_PROTOCOL_MINOR(version) (((version)>>8)&0xff)
31#define SNDRV_PROTOCOL_MICRO(version) ((version)&0xff)
32#define SNDRV_PROTOCOL_INCOMPATIBLE(kversion, uversion) \
33 (SNDRV_PROTOCOL_MAJOR(kversion) != SNDRV_PROTOCOL_MAJOR(uversion) || \
34 (SNDRV_PROTOCOL_MAJOR(kversion) == SNDRV_PROTOCOL_MAJOR(uversion) && \
35 SNDRV_PROTOCOL_MINOR(kversion) != SNDRV_PROTOCOL_MINOR(uversion)))
36
37/****************************************************************************
38 * *
39 * Digital audio interface *
40 * *
41 ****************************************************************************/
42
06feec60
DO		 43#define AES_IEC958_STATUS_SIZE 24
44
674e95ca 45struct snd_aes_iec958 {
06feec60 46 unsigned char status[AES_IEC958_STATUS_SIZE]; /* AES/IEC958 channel status bits */
674e95ca
DH		 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 */
fb7df12d 86 SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */
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DH		 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 */
82fbb4f7 93 SNDRV_HWDEP_IFACE_FW_DICE, /* TC DICE FireWire device */
594ddced 94 SNDRV_HWDEP_IFACE_FW_FIREWORKS, /* Echo Audio Fireworks based device */
618eabea 95 SNDRV_HWDEP_IFACE_FW_BEBOB, /* BridgeCo BeBoB based device */
8985f4ac 96 SNDRV_HWDEP_IFACE_FW_OXFW, /* Oxford OXFW970/971 based device */
660dd3d5 97 SNDRV_HWDEP_IFACE_FW_DIGI00X, /* Digidesign Digi 002/003 family */
e5e0c3dd 98 SNDRV_HWDEP_IFACE_FW_TASCAM, /* TASCAM FireWire series */
a16039cb 99 SNDRV_HWDEP_IFACE_LINE6, /* Line6 USB processors */
71c37977 100 SNDRV_HWDEP_IFACE_FW_MOTU, /* MOTU FireWire series */
f656edd5 101 SNDRV_HWDEP_IFACE_FW_FIREFACE, /* RME Fireface series */
674e95ca
DH		 102
103 /* Don't forget to change the following: */
f656edd5 104 SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_FW_FIREFACE
674e95ca
DH		 105};
106
107struct snd_hwdep_info {
108 unsigned int device; /* WR: device number */
109 int card; /* R: card number */
110 unsigned char id[64]; /* ID (user selectable) */
111 unsigned char name[80]; /* hwdep name */
112 int iface; /* hwdep interface */
113 unsigned char reserved[64]; /* reserved for future */
114};
115
116/* generic DSP loader */
117struct snd_hwdep_dsp_status {
118 unsigned int version; /* R: driver-specific version */
119 unsigned char id[32]; /* R: driver-specific ID string */
120 unsigned int num_dsps; /* R: number of DSP images to transfer */
121 unsigned int dsp_loaded; /* R: bit flags indicating the loaded DSPs */
122 unsigned int chip_ready; /* R: 1 = initialization finished */
123 unsigned char reserved[16]; /* reserved for future use */
124};
125
126struct snd_hwdep_dsp_image {
127 unsigned int index; /* W: DSP index */
128 unsigned char name[64]; /* W: ID (e.g. file name) */
129 unsigned char __user *image; /* W: binary image */
130 size_t length; /* W: size of image in bytes */
131 unsigned long driver_data; /* W: driver-specific data */
132};
133
134#define SNDRV_HWDEP_IOCTL_PVERSION _IOR ('H', 0x00, int)
135#define SNDRV_HWDEP_IOCTL_INFO _IOR ('H', 0x01, struct snd_hwdep_info)
136#define SNDRV_HWDEP_IOCTL_DSP_STATUS _IOR('H', 0x02, struct snd_hwdep_dsp_status)
137#define SNDRV_HWDEP_IOCTL_DSP_LOAD _IOW('H', 0x03, struct snd_hwdep_dsp_image)
138
139/*****************************************************************************
140 * *
141 * Digital Audio (PCM) interface - /dev/snd/pcm?? *
142 * *
143 *****************************************************************************/
144
1cfaef96 145#define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 15)
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DH		 146
147typedef unsigned long snd_pcm_uframes_t;
148typedef signed long snd_pcm_sframes_t;
149
150enum {
151 SNDRV_PCM_CLASS_GENERIC = 0, /* standard mono or stereo device */
152 SNDRV_PCM_CLASS_MULTI, /* multichannel device */
153 SNDRV_PCM_CLASS_MODEM, /* software modem class */
154 SNDRV_PCM_CLASS_DIGITIZER, /* digitizer class */
155 /* Don't forget to change the following: */
156 SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER,
157};
158
159enum {
160 SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, /* mono or stereo subdevices are mixed together */
161 SNDRV_PCM_SUBCLASS_MULTI_MIX, /* multichannel subdevices are mixed together */
162 /* Don't forget to change the following: */
163 SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX,
164};
165
166enum {
167 SNDRV_PCM_STREAM_PLAYBACK = 0,
168 SNDRV_PCM_STREAM_CAPTURE,
169 SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE,
170};
171
172typedef int __bitwise snd_pcm_access_t;
173#define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED ((__force snd_pcm_access_t) 0) /* interleaved mmap */
174#define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED ((__force snd_pcm_access_t) 1) /* noninterleaved mmap */
175#define SNDRV_PCM_ACCESS_MMAP_COMPLEX ((__force snd_pcm_access_t) 2) /* complex mmap */
176#define SNDRV_PCM_ACCESS_RW_INTERLEAVED ((__force snd_pcm_access_t) 3) /* readi/writei */
177#define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED ((__force snd_pcm_access_t) 4) /* readn/writen */
178#define SNDRV_PCM_ACCESS_LAST SNDRV_PCM_ACCESS_RW_NONINTERLEAVED
179
180typedef int __bitwise snd_pcm_format_t;
181#define SNDRV_PCM_FORMAT_S8 ((__force snd_pcm_format_t) 0)
182#define SNDRV_PCM_FORMAT_U8 ((__force snd_pcm_format_t) 1)
183#define SNDRV_PCM_FORMAT_S16_LE ((__force snd_pcm_format_t) 2)
184#define SNDRV_PCM_FORMAT_S16_BE ((__force snd_pcm_format_t) 3)
185#define SNDRV_PCM_FORMAT_U16_LE ((__force snd_pcm_format_t) 4)
186#define SNDRV_PCM_FORMAT_U16_BE ((__force snd_pcm_format_t) 5)
187#define SNDRV_PCM_FORMAT_S24_LE ((__force snd_pcm_format_t) 6) /* low three bytes */
188#define SNDRV_PCM_FORMAT_S24_BE ((__force snd_pcm_format_t) 7) /* low three bytes */
189#define SNDRV_PCM_FORMAT_U24_LE ((__force snd_pcm_format_t) 8) /* low three bytes */
190#define SNDRV_PCM_FORMAT_U24_BE ((__force snd_pcm_format_t) 9) /* low three bytes */
55b71f6c
TS		 191/*
192 * For S32/U32 formats, 'msbits' hardware parameter is often used to deliver information about the
193 * available bit count in most significant bit. It's for the case of so-called 'left-justified' or
194 * `right-padding` sample which has less width than 32 bit.
195 */
674e95ca
DH		 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)
823dbb6e
MS		 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 */
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DH		 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 */
ef7a4f97
DM		 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 */
d4288d3f 235#define SNDRV_PCM_FORMAT_DSD_U32_LE ((__force snd_pcm_format_t) 50) /* DSD, 4-byte samples DSD (x32), little endian */
d42472ec
JL		 236#define SNDRV_PCM_FORMAT_DSD_U16_BE ((__force snd_pcm_format_t) 51) /* DSD, 2-byte samples DSD (x16), big endian */
237#define SNDRV_PCM_FORMAT_DSD_U32_BE ((__force snd_pcm_format_t) 52) /* DSD, 4-byte samples DSD (x32), big endian */
238#define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_DSD_U32_BE
7ed310bd 239#define SNDRV_PCM_FORMAT_FIRST SNDRV_PCM_FORMAT_S8
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DH		 240
241#ifdef SNDRV_LITTLE_ENDIAN
242#define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE
243#define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE
244#define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE
245#define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE
246#define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE
247#define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE
248#define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE
249#define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE
250#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE
823dbb6e
MS		 251#define SNDRV_PCM_FORMAT_S20 SNDRV_PCM_FORMAT_S20_LE
252#define SNDRV_PCM_FORMAT_U20 SNDRV_PCM_FORMAT_U20_LE
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DH		 253#endif
254#ifdef SNDRV_BIG_ENDIAN
255#define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE
256#define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE
257#define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE
258#define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE
259#define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE
260#define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE
261#define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE
262#define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE
263#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE
823dbb6e
MS		 264#define SNDRV_PCM_FORMAT_S20 SNDRV_PCM_FORMAT_S20_BE
265#define SNDRV_PCM_FORMAT_U20 SNDRV_PCM_FORMAT_U20_BE
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DH		 266#endif
267
268typedef int __bitwise snd_pcm_subformat_t;
269#define SNDRV_PCM_SUBFORMAT_STD ((__force snd_pcm_subformat_t) 0)
270#define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_STD
271
272#define SNDRV_PCM_INFO_MMAP 0x00000001 /* hardware supports mmap */
273#define SNDRV_PCM_INFO_MMAP_VALID 0x00000002 /* period data are valid during transfer */
274#define SNDRV_PCM_INFO_DOUBLE 0x00000004 /* Double buffering needed for PCM start/stop */
275#define SNDRV_PCM_INFO_BATCH 0x00000010 /* double buffering */
42f94597 276#define SNDRV_PCM_INFO_SYNC_APPLPTR 0x00000020 /* need the explicit sync of appl_ptr update */
674e95ca
DH		 277#define SNDRV_PCM_INFO_INTERLEAVED 0x00000100 /* channels are interleaved */
278#define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200 /* channels are not interleaved */
279#define SNDRV_PCM_INFO_COMPLEX 0x00000400 /* complex frame organization (mmap only) */
280#define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000 /* hardware transfer block of samples */
281#define SNDRV_PCM_INFO_OVERRANGE 0x00020000 /* hardware supports ADC (capture) overrange detection */
282#define SNDRV_PCM_INFO_RESUME 0x00040000 /* hardware supports stream resume after suspend */
283#define SNDRV_PCM_INFO_PAUSE 0x00080000 /* pause ioctl is supported */
284#define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000 /* only half duplex */
285#define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000 /* playback and capture stream are somewhat correlated */
286#define SNDRV_PCM_INFO_SYNC_START 0x00400000 /* pcm support some kind of sync go */
287#define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP 0x00800000 /* period wakeup can be disabled */
229d0430
PLB		 288#define SNDRV_PCM_INFO_HAS_WALL_CLOCK 0x01000000 /* (Deprecated)has audio wall clock for audio/system time sync */
289#define SNDRV_PCM_INFO_HAS_LINK_ATIME 0x01000000 /* report hardware link audio time, reset on startup */
290#define SNDRV_PCM_INFO_HAS_LINK_ABSOLUTE_ATIME 0x02000000 /* report absolute hardware link audio time, not reset on startup */
291#define SNDRV_PCM_INFO_HAS_LINK_ESTIMATED_ATIME 0x04000000 /* report estimated link audio time */
292#define SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME 0x08000000 /* report synchronized audio/system time */
81be1093 293#define SNDRV_PCM_INFO_EXPLICIT_SYNC 0x10000000 /* needs explicit sync of pointers and data */
b456abe6 294#define SNDRV_PCM_INFO_NO_REWINDS 0x20000000 /* hardware can only support monotonic changes of appl_ptr */
48d88297 295#define SNDRV_PCM_INFO_DRAIN_TRIGGER 0x40000000 /* internal kernel flag - trigger in drain */
674e95ca
DH		 296#define SNDRV_PCM_INFO_FIFO_IN_FRAMES 0x80000000 /* internal kernel flag - FIFO size is in frames */
297
80fe7430
AB		 298#if (__BITS_PER_LONG == 32 && defined(__USE_TIME_BITS64)) || defined __KERNEL__
299#define __SND_STRUCT_TIME64
300#endif
229d0430 301
674e95ca
DH		 302typedef int __bitwise snd_pcm_state_t;
303#define SNDRV_PCM_STATE_OPEN ((__force snd_pcm_state_t) 0) /* stream is open */
304#define SNDRV_PCM_STATE_SETUP ((__force snd_pcm_state_t) 1) /* stream has a setup */
305#define SNDRV_PCM_STATE_PREPARED ((__force snd_pcm_state_t) 2) /* stream is ready to start */
306#define SNDRV_PCM_STATE_RUNNING ((__force snd_pcm_state_t) 3) /* stream is running */
307#define SNDRV_PCM_STATE_XRUN ((__force snd_pcm_state_t) 4) /* stream reached an xrun */
308#define SNDRV_PCM_STATE_DRAINING ((__force snd_pcm_state_t) 5) /* stream is draining */
309#define SNDRV_PCM_STATE_PAUSED ((__force snd_pcm_state_t) 6) /* stream is paused */
310#define SNDRV_PCM_STATE_SUSPENDED ((__force snd_pcm_state_t) 7) /* hardware is suspended */
311#define SNDRV_PCM_STATE_DISCONNECTED ((__force snd_pcm_state_t) 8) /* hardware is disconnected */
312#define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED
313
314enum {
315 SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000,
80fe7430
AB		 316 SNDRV_PCM_MMAP_OFFSET_STATUS_OLD = 0x80000000,
317 SNDRV_PCM_MMAP_OFFSET_CONTROL_OLD = 0x81000000,
318 SNDRV_PCM_MMAP_OFFSET_STATUS_NEW = 0x82000000,
319 SNDRV_PCM_MMAP_OFFSET_CONTROL_NEW = 0x83000000,
320#ifdef __SND_STRUCT_TIME64
321 SNDRV_PCM_MMAP_OFFSET_STATUS = SNDRV_PCM_MMAP_OFFSET_STATUS_NEW,
322 SNDRV_PCM_MMAP_OFFSET_CONTROL = SNDRV_PCM_MMAP_OFFSET_CONTROL_NEW,
323#else
324 SNDRV_PCM_MMAP_OFFSET_STATUS = SNDRV_PCM_MMAP_OFFSET_STATUS_OLD,
325 SNDRV_PCM_MMAP_OFFSET_CONTROL = SNDRV_PCM_MMAP_OFFSET_CONTROL_OLD,
326#endif
674e95ca
DH		 327};
328
329union snd_pcm_sync_id {
330 unsigned char id[16];
331 unsigned short id16[8];
332 unsigned int id32[4];
333};
334
335struct snd_pcm_info {
336 unsigned int device; /* RO/WR (control): device number */
337 unsigned int subdevice; /* RO/WR (control): subdevice number */
338 int stream; /* RO/WR (control): stream direction */
339 int card; /* R: card number */
340 unsigned char id[64]; /* ID (user selectable) */
341 unsigned char name[80]; /* name of this device */
342 unsigned char subname[32]; /* subdevice name */
343 int dev_class; /* SNDRV_PCM_CLASS_* */
344 int dev_subclass; /* SNDRV_PCM_SUBCLASS_* */
345 unsigned int subdevices_count;
346 unsigned int subdevices_avail;
347 union snd_pcm_sync_id sync; /* hardware synchronization ID */
348 unsigned char reserved[64]; /* reserved for future... */
349};
350
351typedef int snd_pcm_hw_param_t;
352#define SNDRV_PCM_HW_PARAM_ACCESS 0 /* Access type */
353#define SNDRV_PCM_HW_PARAM_FORMAT 1 /* Format */
354#define SNDRV_PCM_HW_PARAM_SUBFORMAT 2 /* Subformat */
355#define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS
356#define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT
357
358#define SNDRV_PCM_HW_PARAM_SAMPLE_BITS 8 /* Bits per sample */
359#define SNDRV_PCM_HW_PARAM_FRAME_BITS 9 /* Bits per frame */
360#define SNDRV_PCM_HW_PARAM_CHANNELS 10 /* Channels */
361#define SNDRV_PCM_HW_PARAM_RATE 11 /* Approx rate */
362#define SNDRV_PCM_HW_PARAM_PERIOD_TIME 12 /* Approx distance between
363 * interrupts in us
364 */
365#define SNDRV_PCM_HW_PARAM_PERIOD_SIZE 13 /* Approx frames between
366 * interrupts
367 */
368#define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14 /* Approx bytes between
369 * interrupts
370 */
371#define SNDRV_PCM_HW_PARAM_PERIODS 15 /* Approx interrupts per
372 * buffer
373 */
374#define SNDRV_PCM_HW_PARAM_BUFFER_TIME 16 /* Approx duration of buffer
375 * in us
376 */
377#define SNDRV_PCM_HW_PARAM_BUFFER_SIZE 17 /* Size of buffer in frames */
378#define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18 /* Size of buffer in bytes */
379#define SNDRV_PCM_HW_PARAM_TICK_TIME 19 /* Approx tick duration in us */
380#define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS
381#define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME
382
383#define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0) /* avoid rate resampling */
384#define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER (1<<1) /* export buffer */
385#define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP (1<<2) /* disable period wakeups */
386
387struct snd_interval {
388 unsigned int min, max;
389 unsigned int openmin:1,
390 openmax:1,
391 integer:1,
392 empty:1;
393};
394
395#define SNDRV_MASK_MAX 256
396
397struct snd_mask {
398 __u32 bits[(SNDRV_MASK_MAX+31)/32];
399};
400
401struct snd_pcm_hw_params {
402 unsigned int flags;
fb7df12d 403 struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK -
674e95ca
DH		 404 SNDRV_PCM_HW_PARAM_FIRST_MASK + 1];
405 struct snd_mask mres[5]; /* reserved masks */
406 struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL -
407 SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1];
408 struct snd_interval ires[9]; /* reserved intervals */
409 unsigned int rmask; /* W: requested masks */
410 unsigned int cmask; /* R: changed masks */
411 unsigned int info; /* R: Info flags for returned setup */
412 unsigned int msbits; /* R: used most significant bits */
413 unsigned int rate_num; /* R: rate numerator */
414 unsigned int rate_den; /* R: rate denominator */
415 snd_pcm_uframes_t fifo_size; /* R: chip FIFO size in frames */
416 unsigned char reserved[64]; /* reserved for future */
417};
418
419enum {
420 SNDRV_PCM_TSTAMP_NONE = 0,
421 SNDRV_PCM_TSTAMP_ENABLE,
422 SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE,
423};
424
425struct snd_pcm_sw_params {
426 int tstamp_mode; /* timestamp mode */
427 unsigned int period_step;
428 unsigned int sleep_min; /* min ticks to sleep */
429 snd_pcm_uframes_t avail_min; /* min avail frames for wakeup */
430 snd_pcm_uframes_t xfer_align; /* obsolete: xfer size need to be a multiple */
431 snd_pcm_uframes_t start_threshold; /* min hw_avail frames for automatic start */
9f656705
OB		 432 /*
433 * The following two thresholds alleviate playback buffer underruns; when
434 * hw_avail drops below the threshold, the respective action is triggered:
435 */
436 snd_pcm_uframes_t stop_threshold; /* - stop playback */
437 snd_pcm_uframes_t silence_threshold; /* - pre-fill buffer with silence */
438 snd_pcm_uframes_t silence_size; /* max size of silence pre-fill; when >= boundary,
439 * fill played area with silence immediately */
674e95ca 440 snd_pcm_uframes_t boundary; /* pointers wrap point */
58900810
TI		 441 unsigned int proto; /* protocol version */
442 unsigned int tstamp_type; /* timestamp type (req. proto >= 2.0.12) */
5646eda5 443 unsigned char reserved[56]; /* reserved for future */
674e95ca
DH		 444};
445
446struct snd_pcm_channel_info {
447 unsigned int channel;
448 __kernel_off_t offset; /* mmap offset */
449 unsigned int first; /* offset to first sample in bits */
450 unsigned int step; /* samples distance in bits */
451};
452
229d0430
PLB		 453enum {
454 /*
455 * first definition for backwards compatibility only,
456 * maps to wallclock/link time for HDAudio playback and DEFAULT/DMA time for everything else
457 */
458 SNDRV_PCM_AUDIO_TSTAMP_TYPE_COMPAT = 0,
459
460 /* timestamp definitions */
461 SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT = 1, /* DMA time, reported as per hw_ptr */
462 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK = 2, /* link time reported by sample or wallclock counter, reset on startup */
463 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE = 3, /* link time reported by sample or wallclock counter, not reset on startup */
464 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED = 4, /* link time estimated indirectly */
465 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED = 5, /* link time synchronized with system time */
466 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LAST = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED
467};
468
3ddee7f8
BW		 469#ifndef __KERNEL__
470/* explicit padding avoids incompatibility between i386 and x86-64 */
7fd7d6c5 471typedef struct { unsigned char pad[sizeof(time_t) - sizeof(int)]; } __time_pad;
3ddee7f8 472
674e95ca
DH		 473struct snd_pcm_status {
474 snd_pcm_state_t state; /* stream state */
3ddee7f8 475 __time_pad pad1; /* align to timespec */
674e95ca
DH		 476 struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */
477 struct timespec tstamp; /* reference timestamp */
478 snd_pcm_uframes_t appl_ptr; /* appl ptr */
479 snd_pcm_uframes_t hw_ptr; /* hw ptr */
480 snd_pcm_sframes_t delay; /* current delay in frames */
481 snd_pcm_uframes_t avail; /* number of frames available */
482 snd_pcm_uframes_t avail_max; /* max frames available on hw since last status */
483 snd_pcm_uframes_t overrange; /* count of ADC (capture) overrange detections from last status */
484 snd_pcm_state_t suspended_state; /* suspended stream state */
229d0430
PLB		 485 __u32 audio_tstamp_data; /* needed for 64-bit alignment, used for configs/report to/from userspace */
486 struct timespec audio_tstamp; /* sample counter, wall clock, PHC or on-demand sync'ed */
487 struct timespec driver_tstamp; /* useful in case reference system tstamp is reported with delay */
488 __u32 audio_tstamp_accuracy; /* in ns units, only valid if indicated in audio_tstamp_data */
489 unsigned char reserved[52-2*sizeof(struct timespec)]; /* must be filled with zero */
674e95ca 490};
3ddee7f8 491#endif
674e95ca 492
80fe7430
AB		 493/*
494 * For mmap operations, we need the 64-bit layout, both for compat mode,
495 * and for y2038 compatibility. For 64-bit applications, the two definitions
496 * are identical, so we keep the traditional version.
497 */
498#ifdef __SND_STRUCT_TIME64
499#define __snd_pcm_mmap_status64 snd_pcm_mmap_status
500#define __snd_pcm_mmap_control64 snd_pcm_mmap_control
501#define __snd_pcm_sync_ptr64 snd_pcm_sync_ptr
502#ifdef __KERNEL__
503#define __snd_timespec64 __kernel_timespec
504#else
505#define __snd_timespec64 timespec
506#endif
507struct __snd_timespec {
508 __s32 tv_sec;
509 __s32 tv_nsec;
510};
511#else
512#define __snd_pcm_mmap_status snd_pcm_mmap_status
513#define __snd_pcm_mmap_control snd_pcm_mmap_control
514#define __snd_pcm_sync_ptr snd_pcm_sync_ptr
515#define __snd_timespec timespec
516struct __snd_timespec64 {
517 __s64 tv_sec;
518 __s64 tv_nsec;
519};
520
521#endif
522
523struct __snd_pcm_mmap_status {
674e95ca
DH		 524 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */
525 int pad1; /* Needed for 64 bit alignment */
526 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */
80fe7430 527 struct __snd_timespec tstamp; /* Timestamp */
674e95ca 528 snd_pcm_state_t suspended_state; /* RO: suspended stream state */
80fe7430 529 struct __snd_timespec audio_tstamp; /* from sample counter or wall clock */
674e95ca
DH		 530};
531
80fe7430 532struct __snd_pcm_mmap_control {
674e95ca
DH		 533 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */
534 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */
535};
536
537#define SNDRV_PCM_SYNC_PTR_HWSYNC (1<<0) /* execute hwsync */
538#define SNDRV_PCM_SYNC_PTR_APPL (1<<1) /* get appl_ptr from driver (r/w op) */
539#define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1<<2) /* get avail_min from driver */
540
80fe7430 541struct __snd_pcm_sync_ptr {
674e95ca
DH		 542 unsigned int flags;
543 union {
80fe7430
AB		 544 struct __snd_pcm_mmap_status status;
545 unsigned char reserved[64];
546 } s;
547 union {
548 struct __snd_pcm_mmap_control control;
549 unsigned char reserved[64];
550 } c;
551};
552
553#if defined(__BYTE_ORDER) ? __BYTE_ORDER == __BIG_ENDIAN : defined(__BIG_ENDIAN)
554typedef char __pad_before_uframe[sizeof(__u64) - sizeof(snd_pcm_uframes_t)];
555typedef char __pad_after_uframe[0];
556#endif
557
558#if defined(__BYTE_ORDER) ? __BYTE_ORDER == __LITTLE_ENDIAN : defined(__LITTLE_ENDIAN)
559typedef char __pad_before_uframe[0];
560typedef char __pad_after_uframe[sizeof(__u64) - sizeof(snd_pcm_uframes_t)];
561#endif
562
563struct __snd_pcm_mmap_status64 {
46b770f7 564 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */
80fe7430
AB		 565 __u32 pad1; /* Needed for 64 bit alignment */
566 __pad_before_uframe __pad1;
567 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */
568 __pad_after_uframe __pad2;
569 struct __snd_timespec64 tstamp; /* Timestamp */
46b770f7 570 snd_pcm_state_t suspended_state;/* RO: suspended stream state */
80fe7430
AB		 571 __u32 pad3; /* Needed for 64 bit alignment */
572 struct __snd_timespec64 audio_tstamp; /* sample counter or wall clock */
573};
574
575struct __snd_pcm_mmap_control64 {
576 __pad_before_uframe __pad1;
577 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */
102882b5
OB		 578 __pad_before_uframe __pad2; // This should be __pad_after_uframe, but binary
579 // backwards compatibility constraints prevent a fix.
80fe7430
AB		 580
581 __pad_before_uframe __pad3;
582 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */
583 __pad_after_uframe __pad4;
584};
585
586struct __snd_pcm_sync_ptr64 {
587 __u32 flags;
588 __u32 pad1;
589 union {
590 struct __snd_pcm_mmap_status64 status;
674e95ca
DH		 591 unsigned char reserved[64];
592 } s;
593 union {
80fe7430 594 struct __snd_pcm_mmap_control64 control;
674e95ca
DH		 595 unsigned char reserved[64];
596 } c;
597};
598
599struct snd_xferi {
600 snd_pcm_sframes_t result;
601 void __user *buf;
602 snd_pcm_uframes_t frames;
603};
604
605struct snd_xfern {
606 snd_pcm_sframes_t result;
607 void __user * __user *bufs;
608 snd_pcm_uframes_t frames;
609};
610
611enum {
612 SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0, /* gettimeofday equivalent */
613 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, /* posix_clock_monotonic equivalent */
0ac8a52d
MB		 614 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW, /* monotonic_raw (no NTP) */
615 SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW,
674e95ca
DH		 616};
617
618/* channel positions */
619enum {
620 SNDRV_CHMAP_UNKNOWN = 0,
621 SNDRV_CHMAP_NA, /* N/A, silent */
622 SNDRV_CHMAP_MONO, /* mono stream */
623 /* this follows the alsa-lib mixer channel value + 3 */
624 SNDRV_CHMAP_FL, /* front left */
625 SNDRV_CHMAP_FR, /* front right */
626 SNDRV_CHMAP_RL, /* rear left */
627 SNDRV_CHMAP_RR, /* rear right */
628 SNDRV_CHMAP_FC, /* front center */
629 SNDRV_CHMAP_LFE, /* LFE */
630 SNDRV_CHMAP_SL, /* side left */
631 SNDRV_CHMAP_SR, /* side right */
632 SNDRV_CHMAP_RC, /* rear center */
633 /* new definitions */
634 SNDRV_CHMAP_FLC, /* front left center */
635 SNDRV_CHMAP_FRC, /* front right center */
636 SNDRV_CHMAP_RLC, /* rear left center */
637 SNDRV_CHMAP_RRC, /* rear right center */
638 SNDRV_CHMAP_FLW, /* front left wide */
639 SNDRV_CHMAP_FRW, /* front right wide */
640 SNDRV_CHMAP_FLH, /* front left high */
641 SNDRV_CHMAP_FCH, /* front center high */
642 SNDRV_CHMAP_FRH, /* front right high */
643 SNDRV_CHMAP_TC, /* top center */
644 SNDRV_CHMAP_TFL, /* top front left */
645 SNDRV_CHMAP_TFR, /* top front right */
646 SNDRV_CHMAP_TFC, /* top front center */
647 SNDRV_CHMAP_TRL, /* top rear left */
648 SNDRV_CHMAP_TRR, /* top rear right */
649 SNDRV_CHMAP_TRC, /* top rear center */
7cc17a31
TI		 650 /* new definitions for UAC2 */
651 SNDRV_CHMAP_TFLC, /* top front left center */
652 SNDRV_CHMAP_TFRC, /* top front right center */
653 SNDRV_CHMAP_TSL, /* top side left */
654 SNDRV_CHMAP_TSR, /* top side right */
655 SNDRV_CHMAP_LLFE, /* left LFE */
656 SNDRV_CHMAP_RLFE, /* right LFE */
657 SNDRV_CHMAP_BC, /* bottom center */
658 SNDRV_CHMAP_BLC, /* bottom left center */
659 SNDRV_CHMAP_BRC, /* bottom right center */
660 SNDRV_CHMAP_LAST = SNDRV_CHMAP_BRC,
674e95ca
DH		 661};
662
663#define SNDRV_CHMAP_POSITION_MASK 0xffff
664#define SNDRV_CHMAP_PHASE_INVERSE (0x01 << 16)
665#define SNDRV_CHMAP_DRIVER_SPEC (0x02 << 16)
666
667#define SNDRV_PCM_IOCTL_PVERSION _IOR('A', 0x00, int)
668#define SNDRV_PCM_IOCTL_INFO _IOR('A', 0x01, struct snd_pcm_info)
669#define SNDRV_PCM_IOCTL_TSTAMP _IOW('A', 0x02, int)
670#define SNDRV_PCM_IOCTL_TTSTAMP _IOW('A', 0x03, int)
4b671f57 671#define SNDRV_PCM_IOCTL_USER_PVERSION _IOW('A', 0x04, int)
674e95ca
DH		 672#define SNDRV_PCM_IOCTL_HW_REFINE _IOWR('A', 0x10, struct snd_pcm_hw_params)
673#define SNDRV_PCM_IOCTL_HW_PARAMS _IOWR('A', 0x11, struct snd_pcm_hw_params)
674#define SNDRV_PCM_IOCTL_HW_FREE _IO('A', 0x12)
675#define SNDRV_PCM_IOCTL_SW_PARAMS _IOWR('A', 0x13, struct snd_pcm_sw_params)
676#define SNDRV_PCM_IOCTL_STATUS _IOR('A', 0x20, struct snd_pcm_status)
677#define SNDRV_PCM_IOCTL_DELAY _IOR('A', 0x21, snd_pcm_sframes_t)
678#define SNDRV_PCM_IOCTL_HWSYNC _IO('A', 0x22)
80fe7430
AB		 679#define __SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct __snd_pcm_sync_ptr)
680#define __SNDRV_PCM_IOCTL_SYNC_PTR64 _IOWR('A', 0x23, struct __snd_pcm_sync_ptr64)
674e95ca 681#define SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct snd_pcm_sync_ptr)
229d0430 682#define SNDRV_PCM_IOCTL_STATUS_EXT _IOWR('A', 0x24, struct snd_pcm_status)
674e95ca
DH		 683#define SNDRV_PCM_IOCTL_CHANNEL_INFO _IOR('A', 0x32, struct snd_pcm_channel_info)
684#define SNDRV_PCM_IOCTL_PREPARE _IO('A', 0x40)
685#define SNDRV_PCM_IOCTL_RESET _IO('A', 0x41)
686#define SNDRV_PCM_IOCTL_START _IO('A', 0x42)
687#define SNDRV_PCM_IOCTL_DROP _IO('A', 0x43)
688#define SNDRV_PCM_IOCTL_DRAIN _IO('A', 0x44)
689#define SNDRV_PCM_IOCTL_PAUSE _IOW('A', 0x45, int)
690#define SNDRV_PCM_IOCTL_REWIND _IOW('A', 0x46, snd_pcm_uframes_t)
691#define SNDRV_PCM_IOCTL_RESUME _IO('A', 0x47)
692#define SNDRV_PCM_IOCTL_XRUN _IO('A', 0x48)
693#define SNDRV_PCM_IOCTL_FORWARD _IOW('A', 0x49, snd_pcm_uframes_t)
694#define SNDRV_PCM_IOCTL_WRITEI_FRAMES _IOW('A', 0x50, struct snd_xferi)
695#define SNDRV_PCM_IOCTL_READI_FRAMES _IOR('A', 0x51, struct snd_xferi)
696#define SNDRV_PCM_IOCTL_WRITEN_FRAMES _IOW('A', 0x52, struct snd_xfern)
697#define SNDRV_PCM_IOCTL_READN_FRAMES _IOR('A', 0x53, struct snd_xfern)
698#define SNDRV_PCM_IOCTL_LINK _IOW('A', 0x60, int)
699#define SNDRV_PCM_IOCTL_UNLINK _IO('A', 0x61)
700
701/*****************************************************************************
702 * *
703 * MIDI v1.0 interface *
704 * *
705 *****************************************************************************/
706
707/*
708 * Raw MIDI section - /dev/snd/midi??
709 */
710
08fdced6 711#define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 2)
674e95ca
DH		 712
713enum {
714 SNDRV_RAWMIDI_STREAM_OUTPUT = 0,
715 SNDRV_RAWMIDI_STREAM_INPUT,
716 SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT,
717};
718
719#define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001
720#define SNDRV_RAWMIDI_INFO_INPUT 0x00000002
721#define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004
722
723struct snd_rawmidi_info {
724 unsigned int device; /* RO/WR (control): device number */
725 unsigned int subdevice; /* RO/WR (control): subdevice number */
726 int stream; /* WR: stream */
727 int card; /* R: card number */
728 unsigned int flags; /* SNDRV_RAWMIDI_INFO_XXXX */
729 unsigned char id[64]; /* ID (user selectable) */
730 unsigned char name[80]; /* name of device */
731 unsigned char subname[32]; /* name of active or selected subdevice */
732 unsigned int subdevices_count;
733 unsigned int subdevices_avail;
734 unsigned char reserved[64]; /* reserved for future use */
735};
736
08fdced6
DH		 737#define SNDRV_RAWMIDI_MODE_FRAMING_MASK (7<<0)
738#define SNDRV_RAWMIDI_MODE_FRAMING_SHIFT 0
739#define SNDRV_RAWMIDI_MODE_FRAMING_NONE (0<<0)
740#define SNDRV_RAWMIDI_MODE_FRAMING_TSTAMP (1<<0)
741#define SNDRV_RAWMIDI_MODE_CLOCK_MASK (7<<3)
742#define SNDRV_RAWMIDI_MODE_CLOCK_SHIFT 3
743#define SNDRV_RAWMIDI_MODE_CLOCK_NONE (0<<3)
744#define SNDRV_RAWMIDI_MODE_CLOCK_REALTIME (1<<3)
745#define SNDRV_RAWMIDI_MODE_CLOCK_MONOTONIC (2<<3)
746#define SNDRV_RAWMIDI_MODE_CLOCK_MONOTONIC_RAW (3<<3)
747
748#define SNDRV_RAWMIDI_FRAMING_DATA_LENGTH 16
749
750struct snd_rawmidi_framing_tstamp {
751 /* For now, frame_type is always 0. Midi 2.0 is expected to add new
752 * types here. Applications are expected to skip unknown frame types.
753 */
754 __u8 frame_type;
755 __u8 length; /* number of valid bytes in data field */
756 __u8 reserved[2];
757 __u32 tv_nsec; /* nanoseconds */
758 __u64 tv_sec; /* seconds */
759 __u8 data[SNDRV_RAWMIDI_FRAMING_DATA_LENGTH];
760} __packed;
761
674e95ca
DH		 762struct snd_rawmidi_params {
763 int stream;
764 size_t buffer_size; /* queue size in bytes */
765 size_t avail_min; /* minimum avail bytes for wakeup */
766 unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */
08fdced6
DH		 767 unsigned int mode; /* For input data only, frame incoming data */
768 unsigned char reserved[12]; /* reserved for future use */
674e95ca
DH		 769};
770
d9e5582c 771#ifndef __KERNEL__
674e95ca
DH		 772struct snd_rawmidi_status {
773 int stream;
d9e5582c 774 __time_pad pad1;
674e95ca
DH		 775 struct timespec tstamp; /* Timestamp */
776 size_t avail; /* available bytes */
777 size_t xruns; /* count of overruns since last status (in bytes) */
778 unsigned char reserved[16]; /* reserved for future use */
779};
d9e5582c 780#endif
674e95ca
DH		 781
782#define SNDRV_RAWMIDI_IOCTL_PVERSION _IOR('W', 0x00, int)
783#define SNDRV_RAWMIDI_IOCTL_INFO _IOR('W', 0x01, struct snd_rawmidi_info)
09d23174 784#define SNDRV_RAWMIDI_IOCTL_USER_PVERSION _IOW('W', 0x02, int)
674e95ca
DH		 785#define SNDRV_RAWMIDI_IOCTL_PARAMS _IOWR('W', 0x10, struct snd_rawmidi_params)
786#define SNDRV_RAWMIDI_IOCTL_STATUS _IOWR('W', 0x20, struct snd_rawmidi_status)
787#define SNDRV_RAWMIDI_IOCTL_DROP _IOW('W', 0x30, int)
788#define SNDRV_RAWMIDI_IOCTL_DRAIN _IOW('W', 0x31, int)
789
790/*
791 * Timer section - /dev/snd/timer
792 */
793
1cfaef96 794#define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 7)
674e95ca
DH		 795
796enum {
797 SNDRV_TIMER_CLASS_NONE = -1,
798 SNDRV_TIMER_CLASS_SLAVE = 0,
799 SNDRV_TIMER_CLASS_GLOBAL,
800 SNDRV_TIMER_CLASS_CARD,
801 SNDRV_TIMER_CLASS_PCM,
802 SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM,
803};
804
805/* slave timer classes */
806enum {
807 SNDRV_TIMER_SCLASS_NONE = 0,
808 SNDRV_TIMER_SCLASS_APPLICATION,
809 SNDRV_TIMER_SCLASS_SEQUENCER, /* alias */
810 SNDRV_TIMER_SCLASS_OSS_SEQUENCER, /* alias */
811 SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER,
812};
813
814/* global timers (device member) */
815#define SNDRV_TIMER_GLOBAL_SYSTEM 0
34ce71a9 816#define SNDRV_TIMER_GLOBAL_RTC 1 /* unused */
674e95ca
DH		 817#define SNDRV_TIMER_GLOBAL_HPET 2
818#define SNDRV_TIMER_GLOBAL_HRTIMER 3
819
820/* info flags */
821#define SNDRV_TIMER_FLG_SLAVE (1<<0) /* cannot be controlled */
822
823struct snd_timer_id {
824 int dev_class;
825 int dev_sclass;
826 int card;
827 int device;
828 int subdevice;
829};
830
831struct snd_timer_ginfo {
832 struct snd_timer_id tid; /* requested timer ID */
833 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */
834 int card; /* card number */
835 unsigned char id[64]; /* timer identification */
836 unsigned char name[80]; /* timer name */
837 unsigned long reserved0; /* reserved for future use */
838 unsigned long resolution; /* average period resolution in ns */
839 unsigned long resolution_min; /* minimal period resolution in ns */
840 unsigned long resolution_max; /* maximal period resolution in ns */
841 unsigned int clients; /* active timer clients */
842 unsigned char reserved[32];
843};
844
845struct snd_timer_gparams {
846 struct snd_timer_id tid; /* requested timer ID */
847 unsigned long period_num; /* requested precise period duration (in seconds) - numerator */
848 unsigned long period_den; /* requested precise period duration (in seconds) - denominator */
849 unsigned char reserved[32];
850};
851
852struct snd_timer_gstatus {
853 struct snd_timer_id tid; /* requested timer ID */
854 unsigned long resolution; /* current period resolution in ns */
855 unsigned long resolution_num; /* precise current period resolution (in seconds) - numerator */
856 unsigned long resolution_den; /* precise current period resolution (in seconds) - denominator */
857 unsigned char reserved[32];
858};
859
860struct snd_timer_select {
861 struct snd_timer_id id; /* bind to timer ID */
862 unsigned char reserved[32]; /* reserved */
863};
864
865struct snd_timer_info {
866 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */
867 int card; /* card number */
868 unsigned char id[64]; /* timer identificator */
869 unsigned char name[80]; /* timer name */
870 unsigned long reserved0; /* reserved for future use */
871 unsigned long resolution; /* average period resolution in ns */
872 unsigned char reserved[64]; /* reserved */
873};
874
875#define SNDRV_TIMER_PSFLG_AUTO (1<<0) /* auto start, otherwise one-shot */
876#define SNDRV_TIMER_PSFLG_EXCLUSIVE (1<<1) /* exclusive use, precise start/stop/pause/continue */
877#define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2) /* write early event to the poll queue */
878
879struct snd_timer_params {
a9840151 880 unsigned int flags; /* flags - SNDRV_TIMER_PSFLG_* */
674e95ca
DH		 881 unsigned int ticks; /* requested resolution in ticks */
882 unsigned int queue_size; /* total size of queue (32-1024) */
883 unsigned int reserved0; /* reserved, was: failure locations */
884 unsigned int filter; /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */
885 unsigned char reserved[60]; /* reserved */
886};
887
a07804cc 888#ifndef __KERNEL__
674e95ca
DH		 889struct snd_timer_status {
890 struct timespec tstamp; /* Timestamp - last update */
891 unsigned int resolution; /* current period resolution in ns */
892 unsigned int lost; /* counter of master tick lost */
893 unsigned int overrun; /* count of read queue overruns */
894 unsigned int queue; /* used queue size */
895 unsigned char reserved[64]; /* reserved */
896};
a07804cc 897#endif
674e95ca
DH		 898
899#define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int)
900#define SNDRV_TIMER_IOCTL_NEXT_DEVICE _IOWR('T', 0x01, struct snd_timer_id)
07094ae6 901#define SNDRV_TIMER_IOCTL_TREAD_OLD _IOW('T', 0x02, int)
674e95ca
DH		 902#define SNDRV_TIMER_IOCTL_GINFO _IOWR('T', 0x03, struct snd_timer_ginfo)
903#define SNDRV_TIMER_IOCTL_GPARAMS _IOW('T', 0x04, struct snd_timer_gparams)
904#define SNDRV_TIMER_IOCTL_GSTATUS _IOWR('T', 0x05, struct snd_timer_gstatus)
905#define SNDRV_TIMER_IOCTL_SELECT _IOW('T', 0x10, struct snd_timer_select)
906#define SNDRV_TIMER_IOCTL_INFO _IOR('T', 0x11, struct snd_timer_info)
907#define SNDRV_TIMER_IOCTL_PARAMS _IOW('T', 0x12, struct snd_timer_params)
908#define SNDRV_TIMER_IOCTL_STATUS _IOR('T', 0x14, struct snd_timer_status)
909/* The following four ioctls are changed since 1.0.9 due to confliction */
910#define SNDRV_TIMER_IOCTL_START _IO('T', 0xa0)
911#define SNDRV_TIMER_IOCTL_STOP _IO('T', 0xa1)
912#define SNDRV_TIMER_IOCTL_CONTINUE _IO('T', 0xa2)
913#define SNDRV_TIMER_IOCTL_PAUSE _IO('T', 0xa3)
07094ae6
BW		 914#define SNDRV_TIMER_IOCTL_TREAD64 _IOW('T', 0xa4, int)
915
916#if __BITS_PER_LONG == 64
917#define SNDRV_TIMER_IOCTL_TREAD SNDRV_TIMER_IOCTL_TREAD_OLD
918#else
919#define SNDRV_TIMER_IOCTL_TREAD ((sizeof(__kernel_long_t) >= sizeof(time_t)) ? \
920 SNDRV_TIMER_IOCTL_TREAD_OLD : \
921 SNDRV_TIMER_IOCTL_TREAD64)
922#endif
674e95ca
DH		 923
924struct snd_timer_read {
925 unsigned int resolution;
926 unsigned int ticks;
927};
928
929enum {
930 SNDRV_TIMER_EVENT_RESOLUTION = 0, /* val = resolution in ns */
931 SNDRV_TIMER_EVENT_TICK, /* val = ticks */
932 SNDRV_TIMER_EVENT_START, /* val = resolution in ns */
933 SNDRV_TIMER_EVENT_STOP, /* val = 0 */
934 SNDRV_TIMER_EVENT_CONTINUE, /* val = resolution in ns */
935 SNDRV_TIMER_EVENT_PAUSE, /* val = 0 */
936 SNDRV_TIMER_EVENT_EARLY, /* val = 0, early event */
937 SNDRV_TIMER_EVENT_SUSPEND, /* val = 0 */
938 SNDRV_TIMER_EVENT_RESUME, /* val = resolution in ns */
939 /* master timer events for slave timer instances */
940 SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10,
941 SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10,
942 SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10,
943 SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10,
944 SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10,
945 SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10,
946};
947
07094ae6 948#ifndef __KERNEL__
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DH		 949struct snd_timer_tread {
950 int event;
07094ae6 951 __time_pad pad1;
674e95ca
DH		 952 struct timespec tstamp;
953 unsigned int val;
07094ae6 954 __time_pad pad2;
674e95ca 955};
07094ae6 956#endif
674e95ca
DH		 957
958/****************************************************************************
959 * *
960 * Section for driver control interface - /dev/snd/control? *
961 * *
962 ****************************************************************************/
963
a103a398 964#define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 8)
674e95ca
DH		 965
966struct snd_ctl_card_info {
967 int card; /* card number */
968 int pad; /* reserved for future (was type) */
969 unsigned char id[16]; /* ID of card (user selectable) */
970 unsigned char driver[16]; /* Driver name */
971 unsigned char name[32]; /* Short name of soundcard */
972 unsigned char longname[80]; /* name + info text about soundcard */
973 unsigned char reserved_[16]; /* reserved for future (was ID of mixer) */
974 unsigned char mixername[80]; /* visual mixer identification */
975 unsigned char components[128]; /* card components / fine identification, delimited with one space (AC97 etc..) */
976};
977
978typedef int __bitwise snd_ctl_elem_type_t;
979#define SNDRV_CTL_ELEM_TYPE_NONE ((__force snd_ctl_elem_type_t) 0) /* invalid */
980#define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1) /* boolean type */
981#define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2) /* integer type */
982#define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((__force snd_ctl_elem_type_t) 3) /* enumerated type */
983#define SNDRV_CTL_ELEM_TYPE_BYTES ((__force snd_ctl_elem_type_t) 4) /* byte array */
984#define SNDRV_CTL_ELEM_TYPE_IEC958 ((__force snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */
985#define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((__force snd_ctl_elem_type_t) 6) /* 64-bit integer type */
986#define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64
987
988typedef int __bitwise snd_ctl_elem_iface_t;
989#define SNDRV_CTL_ELEM_IFACE_CARD ((__force snd_ctl_elem_iface_t) 0) /* global control */
990#define SNDRV_CTL_ELEM_IFACE_HWDEP ((__force snd_ctl_elem_iface_t) 1) /* hardware dependent device */
991#define SNDRV_CTL_ELEM_IFACE_MIXER ((__force snd_ctl_elem_iface_t) 2) /* virtual mixer device */
992#define SNDRV_CTL_ELEM_IFACE_PCM ((__force snd_ctl_elem_iface_t) 3) /* PCM device */
993#define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((__force snd_ctl_elem_iface_t) 4) /* RawMidi device */
994#define SNDRV_CTL_ELEM_IFACE_TIMER ((__force snd_ctl_elem_iface_t) 5) /* timer device */
995#define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((__force snd_ctl_elem_iface_t) 6) /* sequencer client */
996#define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER
997
998#define SNDRV_CTL_ELEM_ACCESS_READ (1<<0)
999#define SNDRV_CTL_ELEM_ACCESS_WRITE (1<<1)
1000#define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE)
1001#define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1<<2) /* control value may be changed without a notification */
5aec579e 1002/* (1 << 3) is unused. */
674e95ca
DH		 1003#define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1<<4) /* TLV read is possible */
1004#define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1<<5) /* TLV write is possible */
1005#define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE)
1006#define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1<<6) /* TLV command is possible */
1007#define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) /* control does actually nothing, but may be updated */
1008#define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) /* write lock */
1009#define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) /* write lock owner */
fb7df12d 1010#define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1<<28) /* kernel use a TLV callback */
674e95ca
DH		 1011#define SNDRV_CTL_ELEM_ACCESS_USER (1<<29) /* user space element */
1012/* bits 30 and 31 are obsoleted (for indirect access) */
1013
1014/* for further details see the ACPI and PCI power management specification */
1015#define SNDRV_CTL_POWER_D0 0x0000 /* full On */
1016#define SNDRV_CTL_POWER_D1 0x0100 /* partial On */
1017#define SNDRV_CTL_POWER_D2 0x0200 /* partial On */
1018#define SNDRV_CTL_POWER_D3 0x0300 /* Off */
1019#define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) /* Off, with power */
1020#define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) /* Off, without power */
1021
975cc02a
TI		 1022#define SNDRV_CTL_ELEM_ID_NAME_MAXLEN 44
1023
674e95ca
DH		 1024struct snd_ctl_elem_id {
1025 unsigned int numid; /* numeric identifier, zero = invalid */
1026 snd_ctl_elem_iface_t iface; /* interface identifier */
1027 unsigned int device; /* device/client number */
1028 unsigned int subdevice; /* subdevice (substream) number */
43c499dc 1029 unsigned char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* ASCII name of item */
674e95ca
DH		 1030 unsigned int index; /* index of item */
1031};
1032
1033struct snd_ctl_elem_list {
1034 unsigned int offset; /* W: first element ID to get */
1035 unsigned int space; /* W: count of element IDs to get */
1036 unsigned int used; /* R: count of element IDs set */
1037 unsigned int count; /* R: count of all elements */
1038 struct snd_ctl_elem_id __user *pids; /* R: IDs */
1039 unsigned char reserved[50];
1040};
1041
1042struct snd_ctl_elem_info {
1043 struct snd_ctl_elem_id id; /* W: element ID */
1044 snd_ctl_elem_type_t type; /* R: value type - SNDRV_CTL_ELEM_TYPE_* */
1045 unsigned int access; /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */
1046 unsigned int count; /* count of values */
1047 __kernel_pid_t owner; /* owner's PID of this control */
1048 union {
1049 struct {
1050 long min; /* R: minimum value */
1051 long max; /* R: maximum value */
1052 long step; /* R: step (0 variable) */
1053 } integer;
1054 struct {
1055 long long min; /* R: minimum value */
1056 long long max; /* R: maximum value */
1057 long long step; /* R: step (0 variable) */
1058 } integer64;
1059 struct {
1060 unsigned int items; /* R: number of items */
1061 unsigned int item; /* W: item number */
1062 char name[64]; /* R: value name */
1063 __u64 names_ptr; /* W: names list (ELEM_ADD only) */
1064 unsigned int names_length;
1065 } enumerated;
1066 unsigned char reserved[128];
1067 } value;
ff16351e 1068 unsigned char reserved[64];
674e95ca
DH		 1069};
1070
1071struct snd_ctl_elem_value {
1072 struct snd_ctl_elem_id id; /* W: element ID */
1073 unsigned int indirect: 1; /* W: indirect access - obsoleted */
1074 union {
1075 union {
1076 long value[128];
1077 long *value_ptr; /* obsoleted */
1078 } integer;
1079 union {
1080 long long value[64];
1081 long long *value_ptr; /* obsoleted */
1082 } integer64;
1083 union {
1084 unsigned int item[128];
1085 unsigned int *item_ptr; /* obsoleted */
1086 } enumerated;
1087 union {
1088 unsigned char data[512];
1089 unsigned char *data_ptr; /* obsoleted */
1090 } bytes;
1091 struct snd_aes_iec958 iec958;
1092 } value; /* RO */
a4e7dd35 1093 unsigned char reserved[128];
674e95ca
DH		 1094};
1095
1096struct snd_ctl_tlv {
1097 unsigned int numid; /* control element numeric identification */
1098 unsigned int length; /* in bytes aligned to 4 */
94dfc73e 1099 unsigned int tlv[]; /* first TLV */
674e95ca
DH		 1100};
1101
1102#define SNDRV_CTL_IOCTL_PVERSION _IOR('U', 0x00, int)
1103#define SNDRV_CTL_IOCTL_CARD_INFO _IOR('U', 0x01, struct snd_ctl_card_info)
1104#define SNDRV_CTL_IOCTL_ELEM_LIST _IOWR('U', 0x10, struct snd_ctl_elem_list)
1105#define SNDRV_CTL_IOCTL_ELEM_INFO _IOWR('U', 0x11, struct snd_ctl_elem_info)
1106#define SNDRV_CTL_IOCTL_ELEM_READ _IOWR('U', 0x12, struct snd_ctl_elem_value)
1107#define SNDRV_CTL_IOCTL_ELEM_WRITE _IOWR('U', 0x13, struct snd_ctl_elem_value)
1108#define SNDRV_CTL_IOCTL_ELEM_LOCK _IOW('U', 0x14, struct snd_ctl_elem_id)
1109#define SNDRV_CTL_IOCTL_ELEM_UNLOCK _IOW('U', 0x15, struct snd_ctl_elem_id)
1110#define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int)
1111#define SNDRV_CTL_IOCTL_ELEM_ADD _IOWR('U', 0x17, struct snd_ctl_elem_info)
1112#define SNDRV_CTL_IOCTL_ELEM_REPLACE _IOWR('U', 0x18, struct snd_ctl_elem_info)
1113#define SNDRV_CTL_IOCTL_ELEM_REMOVE _IOWR('U', 0x19, struct snd_ctl_elem_id)
1114#define SNDRV_CTL_IOCTL_TLV_READ _IOWR('U', 0x1a, struct snd_ctl_tlv)
1115#define SNDRV_CTL_IOCTL_TLV_WRITE _IOWR('U', 0x1b, struct snd_ctl_tlv)
1116#define SNDRV_CTL_IOCTL_TLV_COMMAND _IOWR('U', 0x1c, struct snd_ctl_tlv)
1117#define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int)
1118#define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info)
1119#define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int)
1120#define SNDRV_CTL_IOCTL_PCM_INFO _IOWR('U', 0x31, struct snd_pcm_info)
1121#define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int)
1122#define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int)
1123#define SNDRV_CTL_IOCTL_RAWMIDI_INFO _IOWR('U', 0x41, struct snd_rawmidi_info)
1124#define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int)
1125#define SNDRV_CTL_IOCTL_POWER _IOWR('U', 0xd0, int)
1126#define SNDRV_CTL_IOCTL_POWER_STATE _IOR('U', 0xd1, int)
1127
1128/*
1129 * Read interface.
1130 */
1131
1132enum sndrv_ctl_event_type {
1133 SNDRV_CTL_EVENT_ELEM = 0,
1134 SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM,
1135};
1136
1137#define SNDRV_CTL_EVENT_MASK_VALUE (1<<0) /* element value was changed */
1138#define SNDRV_CTL_EVENT_MASK_INFO (1<<1) /* element info was changed */
1139#define SNDRV_CTL_EVENT_MASK_ADD (1<<2) /* element was added */
1140#define SNDRV_CTL_EVENT_MASK_TLV (1<<3) /* element TLV tree was changed */
1141#define SNDRV_CTL_EVENT_MASK_REMOVE (~0U) /* element was removed */
1142
1143struct snd_ctl_event {
1144 int type; /* event type - SNDRV_CTL_EVENT_* */
1145 union {
1146 struct {
1147 unsigned int mask;
1148 struct snd_ctl_elem_id id;
1149 } elem;
1150 unsigned char data8[60];
1151 } data;
1152};
1153
1154/*
1155 * Control names
1156 */
1157
1158#define SNDRV_CTL_NAME_NONE ""
1159#define SNDRV_CTL_NAME_PLAYBACK "Playback "
1160#define SNDRV_CTL_NAME_CAPTURE "Capture "
1161
1162#define SNDRV_CTL_NAME_IEC958_NONE ""
1163#define SNDRV_CTL_NAME_IEC958_SWITCH "Switch"
1164#define SNDRV_CTL_NAME_IEC958_VOLUME "Volume"
1165#define SNDRV_CTL_NAME_IEC958_DEFAULT "Default"
1166#define SNDRV_CTL_NAME_IEC958_MASK "Mask"
1167#define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask"
1168#define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask"
1169#define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream"
1170#define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what
1171
1172#endif /* _UAPI__SOUND_ASOUND_H */
Linux 6.x block layer and io_uring tree(s)