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

source code of linux/include/uapi/sound/asound.h