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, 18)
146
147typedef unsigned long snd_pcm_uframes_t;
148typedef signed long snd_pcm_sframes_t;
149
150enum {
151 SNDRV_PCM_CLASS_GENERIC = 0, /* standard mono or stereo device */
152 SNDRV_PCM_CLASS_MULTI, /* multichannel device */
153 SNDRV_PCM_CLASS_MODEM, /* software modem class */
154 SNDRV_PCM_CLASS_DIGITIZER, /* digitizer class */
155 /* Don't forget to change the following: */
156 SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER,
157};
158
159enum {
160 SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, /* mono or stereo subdevices are mixed together */
161 SNDRV_PCM_SUBCLASS_MULTI_MIX, /* multichannel subdevices are mixed together */
162 /* Don't forget to change the following: */
163 SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX,
164};
165
166enum {
167 SNDRV_PCM_STREAM_PLAYBACK = 0,
168 SNDRV_PCM_STREAM_CAPTURE,
169 SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE,
170};
171
172typedef int __bitwise snd_pcm_access_t;
173#define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED ((__force snd_pcm_access_t) 0) /* interleaved mmap */
174#define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED ((__force snd_pcm_access_t) 1) /* noninterleaved mmap */
175#define SNDRV_PCM_ACCESS_MMAP_COMPLEX ((__force snd_pcm_access_t) 2) /* complex mmap */
176#define SNDRV_PCM_ACCESS_RW_INTERLEAVED ((__force snd_pcm_access_t) 3) /* readi/writei */
177#define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED ((__force snd_pcm_access_t) 4) /* readn/writen */
178#define SNDRV_PCM_ACCESS_LAST SNDRV_PCM_ACCESS_RW_NONINTERLEAVED
179
180typedef int __bitwise snd_pcm_format_t;
181#define SNDRV_PCM_FORMAT_S8 ((__force snd_pcm_format_t) 0)
182#define SNDRV_PCM_FORMAT_U8 ((__force snd_pcm_format_t) 1)
183#define SNDRV_PCM_FORMAT_S16_LE ((__force snd_pcm_format_t) 2)
184#define SNDRV_PCM_FORMAT_S16_BE ((__force snd_pcm_format_t) 3)
185#define SNDRV_PCM_FORMAT_U16_LE ((__force snd_pcm_format_t) 4)
186#define SNDRV_PCM_FORMAT_U16_BE ((__force snd_pcm_format_t) 5)
187#define SNDRV_PCM_FORMAT_S24_LE ((__force snd_pcm_format_t) 6) /* low three bytes */
188#define SNDRV_PCM_FORMAT_S24_BE ((__force snd_pcm_format_t) 7) /* low three bytes */
189#define SNDRV_PCM_FORMAT_U24_LE ((__force snd_pcm_format_t) 8) /* low three bytes */
190#define SNDRV_PCM_FORMAT_U24_BE ((__force snd_pcm_format_t) 9) /* low three bytes */
191/*
192 * For S32/U32 formats, 'msbits' hardware parameter is often used to deliver information about the
193 * available bit count in most significant bit. It's for the case of so-called 'left-justified' or
194 * `right-padding` sample which has less width than 32 bit.
195 */
196#define SNDRV_PCM_FORMAT_S32_LE ((__force snd_pcm_format_t) 10)
197#define SNDRV_PCM_FORMAT_S32_BE ((__force snd_pcm_format_t) 11)
198#define SNDRV_PCM_FORMAT_U32_LE ((__force snd_pcm_format_t) 12)
199#define SNDRV_PCM_FORMAT_U32_BE ((__force snd_pcm_format_t) 13)
200#define SNDRV_PCM_FORMAT_FLOAT_LE ((__force snd_pcm_format_t) 14) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */
201#define SNDRV_PCM_FORMAT_FLOAT_BE ((__force snd_pcm_format_t) 15) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */
202#define SNDRV_PCM_FORMAT_FLOAT64_LE ((__force snd_pcm_format_t) 16) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */
203#define SNDRV_PCM_FORMAT_FLOAT64_BE ((__force snd_pcm_format_t) 17) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */
204#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((__force snd_pcm_format_t) 18) /* IEC-958 subframe, Little Endian */
205#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((__force snd_pcm_format_t) 19) /* IEC-958 subframe, Big Endian */
206#define SNDRV_PCM_FORMAT_MU_LAW ((__force snd_pcm_format_t) 20)
207#define SNDRV_PCM_FORMAT_A_LAW ((__force snd_pcm_format_t) 21)
208#define SNDRV_PCM_FORMAT_IMA_ADPCM ((__force snd_pcm_format_t) 22)
209#define SNDRV_PCM_FORMAT_MPEG ((__force snd_pcm_format_t) 23)
210#define SNDRV_PCM_FORMAT_GSM ((__force snd_pcm_format_t) 24)
211#define SNDRV_PCM_FORMAT_S20_LE ((__force snd_pcm_format_t) 25) /* in four bytes, LSB justified */
212#define SNDRV_PCM_FORMAT_S20_BE ((__force snd_pcm_format_t) 26) /* in four bytes, LSB justified */
213#define SNDRV_PCM_FORMAT_U20_LE ((__force snd_pcm_format_t) 27) /* in four bytes, LSB justified */
214#define SNDRV_PCM_FORMAT_U20_BE ((__force snd_pcm_format_t) 28) /* in four bytes, LSB justified */
215/* gap in the numbering for a future standard linear format */
216#define SNDRV_PCM_FORMAT_SPECIAL ((__force snd_pcm_format_t) 31)
217#define SNDRV_PCM_FORMAT_S24_3LE ((__force snd_pcm_format_t) 32) /* in three bytes */
218#define SNDRV_PCM_FORMAT_S24_3BE ((__force snd_pcm_format_t) 33) /* in three bytes */
219#define SNDRV_PCM_FORMAT_U24_3LE ((__force snd_pcm_format_t) 34) /* in three bytes */
220#define SNDRV_PCM_FORMAT_U24_3BE ((__force snd_pcm_format_t) 35) /* in three bytes */
221#define SNDRV_PCM_FORMAT_S20_3LE ((__force snd_pcm_format_t) 36) /* in three bytes */
222#define SNDRV_PCM_FORMAT_S20_3BE ((__force snd_pcm_format_t) 37) /* in three bytes */
223#define SNDRV_PCM_FORMAT_U20_3LE ((__force snd_pcm_format_t) 38) /* in three bytes */
224#define SNDRV_PCM_FORMAT_U20_3BE ((__force snd_pcm_format_t) 39) /* in three bytes */
225#define SNDRV_PCM_FORMAT_S18_3LE ((__force snd_pcm_format_t) 40) /* in three bytes */
226#define SNDRV_PCM_FORMAT_S18_3BE ((__force snd_pcm_format_t) 41) /* in three bytes */
227#define SNDRV_PCM_FORMAT_U18_3LE ((__force snd_pcm_format_t) 42) /* in three bytes */
228#define SNDRV_PCM_FORMAT_U18_3BE ((__force snd_pcm_format_t) 43) /* in three bytes */
229#define SNDRV_PCM_FORMAT_G723_24 ((__force snd_pcm_format_t) 44) /* 8 samples in 3 bytes */
230#define SNDRV_PCM_FORMAT_G723_24_1B ((__force snd_pcm_format_t) 45) /* 1 sample in 1 byte */
231#define SNDRV_PCM_FORMAT_G723_40 ((__force snd_pcm_format_t) 46) /* 8 Samples in 5 bytes */
232#define SNDRV_PCM_FORMAT_G723_40_1B ((__force snd_pcm_format_t) 47) /* 1 sample in 1 byte */
233#define SNDRV_PCM_FORMAT_DSD_U8 ((__force snd_pcm_format_t) 48) /* DSD, 1-byte samples DSD (x8) */
234#define SNDRV_PCM_FORMAT_DSD_U16_LE ((__force snd_pcm_format_t) 49) /* DSD, 2-byte samples DSD (x16), little endian */
235#define SNDRV_PCM_FORMAT_DSD_U32_LE ((__force snd_pcm_format_t) 50) /* DSD, 4-byte samples DSD (x32), little endian */
236#define SNDRV_PCM_FORMAT_DSD_U16_BE ((__force snd_pcm_format_t) 51) /* DSD, 2-byte samples DSD (x16), big endian */
237#define SNDRV_PCM_FORMAT_DSD_U32_BE ((__force snd_pcm_format_t) 52) /* DSD, 4-byte samples DSD (x32), big endian */
238#define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_DSD_U32_BE
239#define SNDRV_PCM_FORMAT_FIRST SNDRV_PCM_FORMAT_S8
240
241#ifdef SNDRV_LITTLE_ENDIAN
242#define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE
243#define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE
244#define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE
245#define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE
246#define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE
247#define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE
248#define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE
249#define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE
250#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE
251#define SNDRV_PCM_FORMAT_S20 SNDRV_PCM_FORMAT_S20_LE
252#define SNDRV_PCM_FORMAT_U20 SNDRV_PCM_FORMAT_U20_LE
253#endif
254#ifdef SNDRV_BIG_ENDIAN
255#define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE
256#define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE
257#define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE
258#define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE
259#define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE
260#define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE
261#define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE
262#define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE
263#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE
264#define SNDRV_PCM_FORMAT_S20 SNDRV_PCM_FORMAT_S20_BE
265#define SNDRV_PCM_FORMAT_U20 SNDRV_PCM_FORMAT_U20_BE
266#endif
267
268typedef int __bitwise snd_pcm_subformat_t;
269#define SNDRV_PCM_SUBFORMAT_STD ((__force snd_pcm_subformat_t) 0)
270#define SNDRV_PCM_SUBFORMAT_MSBITS_MAX ((__force snd_pcm_subformat_t) 1)
271#define SNDRV_PCM_SUBFORMAT_MSBITS_20 ((__force snd_pcm_subformat_t) 2)
272#define SNDRV_PCM_SUBFORMAT_MSBITS_24 ((__force snd_pcm_subformat_t) 3)
273#define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_MSBITS_24
274
275#define SNDRV_PCM_INFO_MMAP 0x00000001 /* hardware supports mmap */
276#define SNDRV_PCM_INFO_MMAP_VALID 0x00000002 /* period data are valid during transfer */
277#define SNDRV_PCM_INFO_DOUBLE 0x00000004 /* Double buffering needed for PCM start/stop */
278#define SNDRV_PCM_INFO_BATCH 0x00000010 /* double buffering */
279#define SNDRV_PCM_INFO_SYNC_APPLPTR 0x00000020 /* need the explicit sync of appl_ptr update */
280#define SNDRV_PCM_INFO_PERFECT_DRAIN 0x00000040 /* silencing at the end of stream is not required */
281#define SNDRV_PCM_INFO_INTERLEAVED 0x00000100 /* channels are interleaved */
282#define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200 /* channels are not interleaved */
283#define SNDRV_PCM_INFO_COMPLEX 0x00000400 /* complex frame organization (mmap only) */
284#define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000 /* hardware transfer block of samples */
285#define SNDRV_PCM_INFO_OVERRANGE 0x00020000 /* hardware supports ADC (capture) overrange detection */
286#define SNDRV_PCM_INFO_RESUME 0x00040000 /* hardware supports stream resume after suspend */
287#define SNDRV_PCM_INFO_PAUSE 0x00080000 /* pause ioctl is supported */
288#define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000 /* only half duplex */
289#define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000 /* playback and capture stream are somewhat correlated */
290#define SNDRV_PCM_INFO_SYNC_START 0x00400000 /* pcm support some kind of sync go */
291#define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP 0x00800000 /* period wakeup can be disabled */
292#define SNDRV_PCM_INFO_HAS_WALL_CLOCK 0x01000000 /* (Deprecated)has audio wall clock for audio/system time sync */
293#define SNDRV_PCM_INFO_HAS_LINK_ATIME 0x01000000 /* report hardware link audio time, reset on startup */
294#define SNDRV_PCM_INFO_HAS_LINK_ABSOLUTE_ATIME 0x02000000 /* report absolute hardware link audio time, not reset on startup */
295#define SNDRV_PCM_INFO_HAS_LINK_ESTIMATED_ATIME 0x04000000 /* report estimated link audio time */
296#define SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME 0x08000000 /* report synchronized audio/system time */
297#define SNDRV_PCM_INFO_EXPLICIT_SYNC 0x10000000 /* needs explicit sync of pointers and data */
298#define SNDRV_PCM_INFO_NO_REWINDS 0x20000000 /* hardware can only support monotonic changes of appl_ptr */
299#define SNDRV_PCM_INFO_DRAIN_TRIGGER 0x40000000 /* internal kernel flag - trigger in drain */
300#define SNDRV_PCM_INFO_FIFO_IN_FRAMES 0x80000000 /* internal kernel flag - FIFO size is in frames */
301
302#if (__BITS_PER_LONG == 32 && defined(__USE_TIME_BITS64)) || defined __KERNEL__
303#define __SND_STRUCT_TIME64
304#endif
305
306typedef int __bitwise snd_pcm_state_t;
307#define SNDRV_PCM_STATE_OPEN ((__force snd_pcm_state_t) 0) /* stream is open */
308#define SNDRV_PCM_STATE_SETUP ((__force snd_pcm_state_t) 1) /* stream has a setup */
309#define SNDRV_PCM_STATE_PREPARED ((__force snd_pcm_state_t) 2) /* stream is ready to start */
310#define SNDRV_PCM_STATE_RUNNING ((__force snd_pcm_state_t) 3) /* stream is running */
311#define SNDRV_PCM_STATE_XRUN ((__force snd_pcm_state_t) 4) /* stream reached an xrun */
312#define SNDRV_PCM_STATE_DRAINING ((__force snd_pcm_state_t) 5) /* stream is draining */
313#define SNDRV_PCM_STATE_PAUSED ((__force snd_pcm_state_t) 6) /* stream is paused */
314#define SNDRV_PCM_STATE_SUSPENDED ((__force snd_pcm_state_t) 7) /* hardware is suspended */
315#define SNDRV_PCM_STATE_DISCONNECTED ((__force snd_pcm_state_t) 8) /* hardware is disconnected */
316#define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED
317
318enum {
319 SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000,
320 SNDRV_PCM_MMAP_OFFSET_STATUS_OLD = 0x80000000,
321 SNDRV_PCM_MMAP_OFFSET_CONTROL_OLD = 0x81000000,
322 SNDRV_PCM_MMAP_OFFSET_STATUS_NEW = 0x82000000,
323 SNDRV_PCM_MMAP_OFFSET_CONTROL_NEW = 0x83000000,
324#ifdef __SND_STRUCT_TIME64
325 SNDRV_PCM_MMAP_OFFSET_STATUS = SNDRV_PCM_MMAP_OFFSET_STATUS_NEW,
326 SNDRV_PCM_MMAP_OFFSET_CONTROL = SNDRV_PCM_MMAP_OFFSET_CONTROL_NEW,
327#else
328 SNDRV_PCM_MMAP_OFFSET_STATUS = SNDRV_PCM_MMAP_OFFSET_STATUS_OLD,
329 SNDRV_PCM_MMAP_OFFSET_CONTROL = SNDRV_PCM_MMAP_OFFSET_CONTROL_OLD,
330#endif
331};
332
333union snd_pcm_sync_id {
334 unsigned char id[16];
335 unsigned short id16[8];
336 unsigned int id32[4];
337} __attribute__((deprecated));
338
339struct snd_pcm_info {
340 unsigned int device; /* RO/WR (control): device number */
341 unsigned int subdevice; /* RO/WR (control): subdevice number */
342 int stream; /* RO/WR (control): stream direction */
343 int card; /* R: card number */
344 unsigned char id[64]; /* ID (user selectable) */
345 unsigned char name[80]; /* name of this device */
346 unsigned char subname[32]; /* subdevice name */
347 int dev_class; /* SNDRV_PCM_CLASS_* */
348 int dev_subclass; /* SNDRV_PCM_SUBCLASS_* */
349 unsigned int subdevices_count;
350 unsigned int subdevices_avail;
351 unsigned char pad1[16]; /* was: hardware synchronization ID */
352 unsigned char reserved[64]; /* reserved for future... */
353};
354
355typedef int snd_pcm_hw_param_t;
356#define SNDRV_PCM_HW_PARAM_ACCESS 0 /* Access type */
357#define SNDRV_PCM_HW_PARAM_FORMAT 1 /* Format */
358#define SNDRV_PCM_HW_PARAM_SUBFORMAT 2 /* Subformat */
359#define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS
360#define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT
361
362#define SNDRV_PCM_HW_PARAM_SAMPLE_BITS 8 /* Bits per sample */
363#define SNDRV_PCM_HW_PARAM_FRAME_BITS 9 /* Bits per frame */
364#define SNDRV_PCM_HW_PARAM_CHANNELS 10 /* Channels */
365#define SNDRV_PCM_HW_PARAM_RATE 11 /* Approx rate */
366#define SNDRV_PCM_HW_PARAM_PERIOD_TIME 12 /* Approx distance between
367 * interrupts in us
368 */
369#define SNDRV_PCM_HW_PARAM_PERIOD_SIZE 13 /* Approx frames between
370 * interrupts
371 */
372#define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14 /* Approx bytes between
373 * interrupts
374 */
375#define SNDRV_PCM_HW_PARAM_PERIODS 15 /* Approx interrupts per
376 * buffer
377 */
378#define SNDRV_PCM_HW_PARAM_BUFFER_TIME 16 /* Approx duration of buffer
379 * in us
380 */
381#define SNDRV_PCM_HW_PARAM_BUFFER_SIZE 17 /* Size of buffer in frames */
382#define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18 /* Size of buffer in bytes */
383#define SNDRV_PCM_HW_PARAM_TICK_TIME 19 /* Approx tick duration in us */
384#define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS
385#define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME
386
387#define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0) /* avoid rate resampling */
388#define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER (1<<1) /* export buffer */
389#define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP (1<<2) /* disable period wakeups */
390#define SNDRV_PCM_HW_PARAMS_NO_DRAIN_SILENCE (1<<3) /* suppress drain with the filling
391 * of the silence samples
392 */
393
394struct snd_interval {
395 unsigned int min, max;
396 unsigned int openmin:1,
397 openmax:1,
398 integer:1,
399 empty:1;
400};
401
402#define SNDRV_MASK_MAX 256
403
404struct snd_mask {
405 __u32 bits[(SNDRV_MASK_MAX+31)/32];
406};
407
408struct snd_pcm_hw_params {
409 unsigned int flags;
410 struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK -
411 SNDRV_PCM_HW_PARAM_FIRST_MASK + 1];
412 struct snd_mask mres[5]; /* reserved masks */
413 struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL -
414 SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1];
415 struct snd_interval ires[9]; /* reserved intervals */
416 unsigned int rmask; /* W: requested masks */
417 unsigned int cmask; /* R: changed masks */
418 unsigned int info; /* R: Info flags for returned setup */
419 unsigned int msbits; /* R: used most significant bits (in sample bit-width) */
420 unsigned int rate_num; /* R: rate numerator */
421 unsigned int rate_den; /* R: rate denominator */
422 snd_pcm_uframes_t fifo_size; /* R: chip FIFO size in frames */
423 unsigned char sync[16]; /* R: synchronization ID (perfect sync - one clock source) */
424 unsigned char reserved[48]; /* reserved for future */
425};
426
427enum {
428 SNDRV_PCM_TSTAMP_NONE = 0,
429 SNDRV_PCM_TSTAMP_ENABLE,
430 SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE,
431};
432
433struct snd_pcm_sw_params {
434 int tstamp_mode; /* timestamp mode */
435 unsigned int period_step;
436 unsigned int sleep_min; /* min ticks to sleep */
437 snd_pcm_uframes_t avail_min; /* min avail frames for wakeup */
438 snd_pcm_uframes_t xfer_align; /* obsolete: xfer size need to be a multiple */
439 snd_pcm_uframes_t start_threshold; /* min hw_avail frames for automatic start */
440 /*
441 * The following two thresholds alleviate playback buffer underruns; when
442 * hw_avail drops below the threshold, the respective action is triggered:
443 */
444 snd_pcm_uframes_t stop_threshold; /* - stop playback */
445 snd_pcm_uframes_t silence_threshold; /* - pre-fill buffer with silence */
446 snd_pcm_uframes_t silence_size; /* max size of silence pre-fill; when >= boundary,
447 * fill played area with silence immediately */
448 snd_pcm_uframes_t boundary; /* pointers wrap point */
449 unsigned int proto; /* protocol version */
450 unsigned int tstamp_type; /* timestamp type (req. proto >= 2.0.12) */
451 unsigned char reserved[56]; /* reserved for future */
452};
453
454struct snd_pcm_channel_info {
455 unsigned int channel;
456 __kernel_off_t offset; /* mmap offset */
457 unsigned int first; /* offset to first sample in bits */
458 unsigned int step; /* samples distance in bits */
459};
460
461enum {
462 /*
463 * first definition for backwards compatibility only,
464 * maps to wallclock/link time for HDAudio playback and DEFAULT/DMA time for everything else
465 */
466 SNDRV_PCM_AUDIO_TSTAMP_TYPE_COMPAT = 0,
467
468 /* timestamp definitions */
469 SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT = 1, /* DMA time, reported as per hw_ptr */
470 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK = 2, /* link time reported by sample or wallclock counter, reset on startup */
471 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE = 3, /* link time reported by sample or wallclock counter, not reset on startup */
472 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED = 4, /* link time estimated indirectly */
473 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED = 5, /* link time synchronized with system time */
474 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LAST = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED
475};
476
477#ifndef __KERNEL__
478/* explicit padding avoids incompatibility between i386 and x86-64 */
479typedef struct { unsigned char pad[sizeof(time_t) - sizeof(int)]; } __time_pad;
480
481struct snd_pcm_status {
482 snd_pcm_state_t state; /* stream state */
483 __time_pad pad1; /* align to timespec */
484 struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */
485 struct timespec tstamp; /* reference timestamp */
486 snd_pcm_uframes_t appl_ptr; /* appl ptr */
487 snd_pcm_uframes_t hw_ptr; /* hw ptr */
488 snd_pcm_sframes_t delay; /* current delay in frames */
489 snd_pcm_uframes_t avail; /* number of frames available */
490 snd_pcm_uframes_t avail_max; /* max frames available on hw since last status */
491 snd_pcm_uframes_t overrange; /* count of ADC (capture) overrange detections from last status */
492 snd_pcm_state_t suspended_state; /* suspended stream state */
493 __u32 audio_tstamp_data; /* needed for 64-bit alignment, used for configs/report to/from userspace */
494 struct timespec audio_tstamp; /* sample counter, wall clock, PHC or on-demand sync'ed */
495 struct timespec driver_tstamp; /* useful in case reference system tstamp is reported with delay */
496 __u32 audio_tstamp_accuracy; /* in ns units, only valid if indicated in audio_tstamp_data */
497 unsigned char reserved[52-2*sizeof(struct timespec)]; /* must be filled with zero */
498};
499#endif
500
501/*
502 * For mmap operations, we need the 64-bit layout, both for compat mode,
503 * and for y2038 compatibility. For 64-bit applications, the two definitions
504 * are identical, so we keep the traditional version.
505 */
506#ifdef __SND_STRUCT_TIME64
507#define __snd_pcm_mmap_status64 snd_pcm_mmap_status
508#define __snd_pcm_mmap_control64 snd_pcm_mmap_control
509#define __snd_pcm_sync_ptr64 snd_pcm_sync_ptr
510#ifdef __KERNEL__
511#define __snd_timespec64 __kernel_timespec
512#else
513#define __snd_timespec64 timespec
514#endif
515struct __snd_timespec {
516 __s32 tv_sec;
517 __s32 tv_nsec;
518};
519#else
520#define __snd_pcm_mmap_status snd_pcm_mmap_status
521#define __snd_pcm_mmap_control snd_pcm_mmap_control
522#define __snd_pcm_sync_ptr snd_pcm_sync_ptr
523#define __snd_timespec timespec
524struct __snd_timespec64 {
525 __s64 tv_sec;
526 __s64 tv_nsec;
527};
528
529#endif
530
531struct __snd_pcm_mmap_status {
532 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */
533 int pad1; /* Needed for 64 bit alignment */
534 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */
535 struct __snd_timespec tstamp; /* Timestamp */
536 snd_pcm_state_t suspended_state; /* RO: suspended stream state */
537 struct __snd_timespec audio_tstamp; /* from sample counter or wall clock */
538};
539
540struct __snd_pcm_mmap_control {
541 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */
542 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */
543};
544
545#define SNDRV_PCM_SYNC_PTR_HWSYNC (1<<0) /* execute hwsync */
546#define SNDRV_PCM_SYNC_PTR_APPL (1<<1) /* get appl_ptr from driver (r/w op) */
547#define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1<<2) /* get avail_min from driver */
548
549struct __snd_pcm_sync_ptr {
550 unsigned int flags;
551 union {
552 struct __snd_pcm_mmap_status status;
553 unsigned char reserved[64];
554 } s;
555 union {
556 struct __snd_pcm_mmap_control control;
557 unsigned char reserved[64];
558 } c;
559};
560
561#if defined(__BYTE_ORDER) ? __BYTE_ORDER == __BIG_ENDIAN : defined(__BIG_ENDIAN)
562typedef char __pad_before_uframe[sizeof(__u64) - sizeof(snd_pcm_uframes_t)];
563typedef char __pad_after_uframe[0];
564#endif
565
566#if defined(__BYTE_ORDER) ? __BYTE_ORDER == __LITTLE_ENDIAN : defined(__LITTLE_ENDIAN)
567typedef char __pad_before_uframe[0];
568typedef char __pad_after_uframe[sizeof(__u64) - sizeof(snd_pcm_uframes_t)];
569#endif
570
571struct __snd_pcm_mmap_status64 {
572 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */
573 __u32 pad1; /* Needed for 64 bit alignment */
574 __pad_before_uframe __pad1;
575 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */
576 __pad_after_uframe __pad2;
577 struct __snd_timespec64 tstamp; /* Timestamp */
578 snd_pcm_state_t suspended_state;/* RO: suspended stream state */
579 __u32 pad3; /* Needed for 64 bit alignment */
580 struct __snd_timespec64 audio_tstamp; /* sample counter or wall clock */
581};
582
583struct __snd_pcm_mmap_control64 {
584 __pad_before_uframe __pad1;
585 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */
586 __pad_before_uframe __pad2; // This should be __pad_after_uframe, but binary
587 // backwards compatibility constraints prevent a fix.
588
589 __pad_before_uframe __pad3;
590 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */
591 __pad_after_uframe __pad4;
592};
593
594struct __snd_pcm_sync_ptr64 {
595 __u32 flags;
596 __u32 pad1;
597 union {
598 struct __snd_pcm_mmap_status64 status;
599 unsigned char reserved[64];
600 } s;
601 union {
602 struct __snd_pcm_mmap_control64 control;
603 unsigned char reserved[64];
604 } c;
605};
606
607struct snd_xferi {
608 snd_pcm_sframes_t result;
609 void __user *buf;
610 snd_pcm_uframes_t frames;
611};
612
613struct snd_xfern {
614 snd_pcm_sframes_t result;
615 void __user * __user *bufs;
616 snd_pcm_uframes_t frames;
617};
618
619enum {
620 SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0, /* gettimeofday equivalent */
621 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, /* posix_clock_monotonic equivalent */
622 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW, /* monotonic_raw (no NTP) */
623 SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW,
624};
625
626/* channel positions */
627enum {
628 SNDRV_CHMAP_UNKNOWN = 0,
629 SNDRV_CHMAP_NA, /* N/A, silent */
630 SNDRV_CHMAP_MONO, /* mono stream */
631 /* this follows the alsa-lib mixer channel value + 3 */
632 SNDRV_CHMAP_FL, /* front left */
633 SNDRV_CHMAP_FR, /* front right */
634 SNDRV_CHMAP_RL, /* rear left */
635 SNDRV_CHMAP_RR, /* rear right */
636 SNDRV_CHMAP_FC, /* front center */
637 SNDRV_CHMAP_LFE, /* LFE */
638 SNDRV_CHMAP_SL, /* side left */
639 SNDRV_CHMAP_SR, /* side right */
640 SNDRV_CHMAP_RC, /* rear center */
641 /* new definitions */
642 SNDRV_CHMAP_FLC, /* front left center */
643 SNDRV_CHMAP_FRC, /* front right center */
644 SNDRV_CHMAP_RLC, /* rear left center */
645 SNDRV_CHMAP_RRC, /* rear right center */
646 SNDRV_CHMAP_FLW, /* front left wide */
647 SNDRV_CHMAP_FRW, /* front right wide */
648 SNDRV_CHMAP_FLH, /* front left high */
649 SNDRV_CHMAP_FCH, /* front center high */
650 SNDRV_CHMAP_FRH, /* front right high */
651 SNDRV_CHMAP_TC, /* top center */
652 SNDRV_CHMAP_TFL, /* top front left */
653 SNDRV_CHMAP_TFR, /* top front right */
654 SNDRV_CHMAP_TFC, /* top front center */
655 SNDRV_CHMAP_TRL, /* top rear left */
656 SNDRV_CHMAP_TRR, /* top rear right */
657 SNDRV_CHMAP_TRC, /* top rear center */
658 /* new definitions for UAC2 */
659 SNDRV_CHMAP_TFLC, /* top front left center */
660 SNDRV_CHMAP_TFRC, /* top front right center */
661 SNDRV_CHMAP_TSL, /* top side left */
662 SNDRV_CHMAP_TSR, /* top side right */
663 SNDRV_CHMAP_LLFE, /* left LFE */
664 SNDRV_CHMAP_RLFE, /* right LFE */
665 SNDRV_CHMAP_BC, /* bottom center */
666 SNDRV_CHMAP_BLC, /* bottom left center */
667 SNDRV_CHMAP_BRC, /* bottom right center */
668 SNDRV_CHMAP_LAST = SNDRV_CHMAP_BRC,
669};
670
671#define SNDRV_CHMAP_POSITION_MASK 0xffff
672#define SNDRV_CHMAP_PHASE_INVERSE (0x01 << 16)
673#define SNDRV_CHMAP_DRIVER_SPEC (0x02 << 16)
674
675#define SNDRV_PCM_IOCTL_PVERSION _IOR('A', 0x00, int)
676#define SNDRV_PCM_IOCTL_INFO _IOR('A', 0x01, struct snd_pcm_info)
677#define SNDRV_PCM_IOCTL_TSTAMP _IOW('A', 0x02, int)
678#define SNDRV_PCM_IOCTL_TTSTAMP _IOW('A', 0x03, int)
679#define SNDRV_PCM_IOCTL_USER_PVERSION _IOW('A', 0x04, int)
680#define SNDRV_PCM_IOCTL_HW_REFINE _IOWR('A', 0x10, struct snd_pcm_hw_params)
681#define SNDRV_PCM_IOCTL_HW_PARAMS _IOWR('A', 0x11, struct snd_pcm_hw_params)
682#define SNDRV_PCM_IOCTL_HW_FREE _IO('A', 0x12)
683#define SNDRV_PCM_IOCTL_SW_PARAMS _IOWR('A', 0x13, struct snd_pcm_sw_params)
684#define SNDRV_PCM_IOCTL_STATUS _IOR('A', 0x20, struct snd_pcm_status)
685#define SNDRV_PCM_IOCTL_DELAY _IOR('A', 0x21, snd_pcm_sframes_t)
686#define SNDRV_PCM_IOCTL_HWSYNC _IO('A', 0x22)
687#define __SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct __snd_pcm_sync_ptr)
688#define __SNDRV_PCM_IOCTL_SYNC_PTR64 _IOWR('A', 0x23, struct __snd_pcm_sync_ptr64)
689#define SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct snd_pcm_sync_ptr)
690#define SNDRV_PCM_IOCTL_STATUS_EXT _IOWR('A', 0x24, struct snd_pcm_status)
691#define SNDRV_PCM_IOCTL_CHANNEL_INFO _IOR('A', 0x32, struct snd_pcm_channel_info)
692#define SNDRV_PCM_IOCTL_PREPARE _IO('A', 0x40)
693#define SNDRV_PCM_IOCTL_RESET _IO('A', 0x41)
694#define SNDRV_PCM_IOCTL_START _IO('A', 0x42)
695#define SNDRV_PCM_IOCTL_DROP _IO('A', 0x43)
696#define SNDRV_PCM_IOCTL_DRAIN _IO('A', 0x44)
697#define SNDRV_PCM_IOCTL_PAUSE _IOW('A', 0x45, int)
698#define SNDRV_PCM_IOCTL_REWIND _IOW('A', 0x46, snd_pcm_uframes_t)
699#define SNDRV_PCM_IOCTL_RESUME _IO('A', 0x47)
700#define SNDRV_PCM_IOCTL_XRUN _IO('A', 0x48)
701#define SNDRV_PCM_IOCTL_FORWARD _IOW('A', 0x49, snd_pcm_uframes_t)
702#define SNDRV_PCM_IOCTL_WRITEI_FRAMES _IOW('A', 0x50, struct snd_xferi)
703#define SNDRV_PCM_IOCTL_READI_FRAMES _IOR('A', 0x51, struct snd_xferi)
704#define SNDRV_PCM_IOCTL_WRITEN_FRAMES _IOW('A', 0x52, struct snd_xfern)
705#define SNDRV_PCM_IOCTL_READN_FRAMES _IOR('A', 0x53, struct snd_xfern)
706#define SNDRV_PCM_IOCTL_LINK _IOW('A', 0x60, int)
707#define SNDRV_PCM_IOCTL_UNLINK _IO('A', 0x61)
708
709/*****************************************************************************
710 * *
711 * MIDI v1.0 interface *
712 * *
713 *****************************************************************************/
714
715/*
716 * Raw MIDI section - /dev/snd/midi??
717 */
718
719#define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 5)
720
721enum {
722 SNDRV_RAWMIDI_STREAM_OUTPUT = 0,
723 SNDRV_RAWMIDI_STREAM_INPUT,
724 SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT,
725};
726
727#define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001
728#define SNDRV_RAWMIDI_INFO_INPUT 0x00000002
729#define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004
730#define SNDRV_RAWMIDI_INFO_UMP 0x00000008
731#define SNDRV_RAWMIDI_INFO_STREAM_INACTIVE 0x00000010
732
733#define SNDRV_RAWMIDI_DEVICE_UNKNOWN 0
734
735struct snd_rawmidi_info {
736 unsigned int device; /* RO/WR (control): device number */
737 unsigned int subdevice; /* RO/WR (control): subdevice number */
738 int stream; /* WR: stream */
739 int card; /* R: card number */
740 unsigned int flags; /* SNDRV_RAWMIDI_INFO_XXXX */
741 unsigned char id[64]; /* ID (user selectable) */
742 unsigned char name[80]; /* name of device */
743 unsigned char subname[32]; /* name of active or selected subdevice */
744 unsigned int subdevices_count;
745 unsigned int subdevices_avail;
746 int tied_device; /* R: tied rawmidi device (UMP/legacy) */
747 unsigned char reserved[60]; /* reserved for future use */
748};
749
750#define SNDRV_RAWMIDI_MODE_FRAMING_MASK (7<<0)
751#define SNDRV_RAWMIDI_MODE_FRAMING_SHIFT 0
752#define SNDRV_RAWMIDI_MODE_FRAMING_NONE (0<<0)
753#define SNDRV_RAWMIDI_MODE_FRAMING_TSTAMP (1<<0)
754#define SNDRV_RAWMIDI_MODE_CLOCK_MASK (7<<3)
755#define SNDRV_RAWMIDI_MODE_CLOCK_SHIFT 3
756#define SNDRV_RAWMIDI_MODE_CLOCK_NONE (0<<3)
757#define SNDRV_RAWMIDI_MODE_CLOCK_REALTIME (1<<3)
758#define SNDRV_RAWMIDI_MODE_CLOCK_MONOTONIC (2<<3)
759#define SNDRV_RAWMIDI_MODE_CLOCK_MONOTONIC_RAW (3<<3)
760
761#define SNDRV_RAWMIDI_FRAMING_DATA_LENGTH 16
762
763struct snd_rawmidi_framing_tstamp {
764 /* For now, frame_type is always 0. Midi 2.0 is expected to add new
765 * types here. Applications are expected to skip unknown frame types.
766 */
767 __u8 frame_type;
768 __u8 length; /* number of valid bytes in data field */
769 __u8 reserved[2];
770 __u32 tv_nsec; /* nanoseconds */
771 __u64 tv_sec; /* seconds */
772 __u8 data[SNDRV_RAWMIDI_FRAMING_DATA_LENGTH];
773} __packed;
774
775struct snd_rawmidi_params {
776 int stream;
777 size_t buffer_size; /* queue size in bytes */
778 size_t avail_min; /* minimum avail bytes for wakeup */
779 unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */
780 unsigned int mode; /* For input data only, frame incoming data */
781 unsigned char reserved[12]; /* reserved for future use */
782};
783
784#ifndef __KERNEL__
785struct snd_rawmidi_status {
786 int stream;
787 __time_pad pad1;
788 struct timespec tstamp; /* Timestamp */
789 size_t avail; /* available bytes */
790 size_t xruns; /* count of overruns since last status (in bytes) */
791 unsigned char reserved[16]; /* reserved for future use */
792};
793#endif
794
795/* UMP EP info flags */
796#define SNDRV_UMP_EP_INFO_STATIC_BLOCKS 0x01
797
798/* UMP EP Protocol / JRTS capability bits */
799#define SNDRV_UMP_EP_INFO_PROTO_MIDI_MASK 0x0300
800#define SNDRV_UMP_EP_INFO_PROTO_MIDI1 0x0100 /* MIDI 1.0 */
801#define SNDRV_UMP_EP_INFO_PROTO_MIDI2 0x0200 /* MIDI 2.0 */
802#define SNDRV_UMP_EP_INFO_PROTO_JRTS_MASK 0x0003
803#define SNDRV_UMP_EP_INFO_PROTO_JRTS_TX 0x0001 /* JRTS Transmit */
804#define SNDRV_UMP_EP_INFO_PROTO_JRTS_RX 0x0002 /* JRTS Receive */
805
806/* UMP Endpoint information */
807struct snd_ump_endpoint_info {
808 int card; /* card number */
809 int device; /* device number */
810 unsigned int flags; /* additional info */
811 unsigned int protocol_caps; /* protocol capabilities */
812 unsigned int protocol; /* current protocol */
813 unsigned int num_blocks; /* # of function blocks */
814 unsigned short version; /* UMP major/minor version */
815 unsigned short family_id; /* MIDI device family ID */
816 unsigned short model_id; /* MIDI family model ID */
817 unsigned int manufacturer_id; /* MIDI manufacturer ID */
818 unsigned char sw_revision[4]; /* software revision */
819 unsigned short padding;
820 unsigned char name[128]; /* endpoint name string */
821 unsigned char product_id[128]; /* unique product id string */
822 unsigned char reserved[32];
823} __packed;
824
825/* UMP direction */
826#define SNDRV_UMP_DIR_INPUT 0x01
827#define SNDRV_UMP_DIR_OUTPUT 0x02
828#define SNDRV_UMP_DIR_BIDIRECTION 0x03
829
830/* UMP block info flags */
831#define SNDRV_UMP_BLOCK_IS_MIDI1 (1U << 0) /* MIDI 1.0 port w/o restrict */
832#define SNDRV_UMP_BLOCK_IS_LOWSPEED (1U << 1) /* 31.25Kbps B/W MIDI1 port */
833
834/* UMP block user-interface hint */
835#define SNDRV_UMP_BLOCK_UI_HINT_UNKNOWN 0x00
836#define SNDRV_UMP_BLOCK_UI_HINT_RECEIVER 0x01
837#define SNDRV_UMP_BLOCK_UI_HINT_SENDER 0x02
838#define SNDRV_UMP_BLOCK_UI_HINT_BOTH 0x03
839
840/* UMP groups and blocks */
841#define SNDRV_UMP_MAX_GROUPS 16
842#define SNDRV_UMP_MAX_BLOCKS 32
843
844/* UMP Block information */
845struct snd_ump_block_info {
846 int card; /* card number */
847 int device; /* device number */
848 unsigned char block_id; /* block ID (R/W) */
849 unsigned char direction; /* UMP direction */
850 unsigned char active; /* Activeness */
851 unsigned char first_group; /* first group ID */
852 unsigned char num_groups; /* number of groups */
853 unsigned char midi_ci_version; /* MIDI-CI support version */
854 unsigned char sysex8_streams; /* max number of sysex8 streams */
855 unsigned char ui_hint; /* user interface hint */
856 unsigned int flags; /* various info flags */
857 unsigned char name[128]; /* block name string */
858 unsigned char reserved[32];
859} __packed;
860
861#define SNDRV_RAWMIDI_IOCTL_PVERSION _IOR('W', 0x00, int)
862#define SNDRV_RAWMIDI_IOCTL_INFO _IOR('W', 0x01, struct snd_rawmidi_info)
863#define SNDRV_RAWMIDI_IOCTL_USER_PVERSION _IOW('W', 0x02, int)
864#define SNDRV_RAWMIDI_IOCTL_PARAMS _IOWR('W', 0x10, struct snd_rawmidi_params)
865#define SNDRV_RAWMIDI_IOCTL_STATUS _IOWR('W', 0x20, struct snd_rawmidi_status)
866#define SNDRV_RAWMIDI_IOCTL_DROP _IOW('W', 0x30, int)
867#define SNDRV_RAWMIDI_IOCTL_DRAIN _IOW('W', 0x31, int)
868/* Additional ioctls for UMP rawmidi devices */
869#define SNDRV_UMP_IOCTL_ENDPOINT_INFO _IOR('W', 0x40, struct snd_ump_endpoint_info)
870#define SNDRV_UMP_IOCTL_BLOCK_INFO _IOR('W', 0x41, struct snd_ump_block_info)
871
872/*
873 * Timer section - /dev/snd/timer
874 */
875
876#define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 8)
877
878enum {
879 SNDRV_TIMER_CLASS_NONE = -1,
880 SNDRV_TIMER_CLASS_SLAVE = 0,
881 SNDRV_TIMER_CLASS_GLOBAL,
882 SNDRV_TIMER_CLASS_CARD,
883 SNDRV_TIMER_CLASS_PCM,
884 SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM,
885};
886
887/* slave timer classes */
888enum {
889 SNDRV_TIMER_SCLASS_NONE = 0,
890 SNDRV_TIMER_SCLASS_APPLICATION,
891 SNDRV_TIMER_SCLASS_SEQUENCER, /* alias */
892 SNDRV_TIMER_SCLASS_OSS_SEQUENCER, /* alias */
893 SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER,
894};
895
896/* global timers (device member) */
897#define SNDRV_TIMER_GLOBAL_SYSTEM 0
898#define SNDRV_TIMER_GLOBAL_RTC 1 /* unused */
899#define SNDRV_TIMER_GLOBAL_HPET 2
900#define SNDRV_TIMER_GLOBAL_HRTIMER 3
901#define SNDRV_TIMER_GLOBAL_UDRIVEN 4
902
903/* info flags */
904#define SNDRV_TIMER_FLG_SLAVE (1<<0) /* cannot be controlled */
905
906struct snd_timer_id {
907 int dev_class;
908 int dev_sclass;
909 int card;
910 int device;
911 int subdevice;
912};
913
914struct snd_timer_ginfo {
915 struct snd_timer_id tid; /* requested timer ID */
916 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */
917 int card; /* card number */
918 unsigned char id[64]; /* timer identification */
919 unsigned char name[80]; /* timer name */
920 unsigned long reserved0; /* reserved for future use */
921 unsigned long resolution; /* average period resolution in ns */
922 unsigned long resolution_min; /* minimal period resolution in ns */
923 unsigned long resolution_max; /* maximal period resolution in ns */
924 unsigned int clients; /* active timer clients */
925 unsigned char reserved[32];
926};
927
928struct snd_timer_gparams {
929 struct snd_timer_id tid; /* requested timer ID */
930 unsigned long period_num; /* requested precise period duration (in seconds) - numerator */
931 unsigned long period_den; /* requested precise period duration (in seconds) - denominator */
932 unsigned char reserved[32];
933};
934
935struct snd_timer_gstatus {
936 struct snd_timer_id tid; /* requested timer ID */
937 unsigned long resolution; /* current period resolution in ns */
938 unsigned long resolution_num; /* precise current period resolution (in seconds) - numerator */
939 unsigned long resolution_den; /* precise current period resolution (in seconds) - denominator */
940 unsigned char reserved[32];
941};
942
943struct snd_timer_select {
944 struct snd_timer_id id; /* bind to timer ID */
945 unsigned char reserved[32]; /* reserved */
946};
947
948struct snd_timer_info {
949 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */
950 int card; /* card number */
951 unsigned char id[64]; /* timer identificator */
952 unsigned char name[80]; /* timer name */
953 unsigned long reserved0; /* reserved for future use */
954 unsigned long resolution; /* average period resolution in ns */
955 unsigned char reserved[64]; /* reserved */
956};
957
958#define SNDRV_TIMER_PSFLG_AUTO (1<<0) /* auto start, otherwise one-shot */
959#define SNDRV_TIMER_PSFLG_EXCLUSIVE (1<<1) /* exclusive use, precise start/stop/pause/continue */
960#define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2) /* write early event to the poll queue */
961
962struct snd_timer_params {
963 unsigned int flags; /* flags - SNDRV_TIMER_PSFLG_* */
964 unsigned int ticks; /* requested resolution in ticks */
965 unsigned int queue_size; /* total size of queue (32-1024) */
966 unsigned int reserved0; /* reserved, was: failure locations */
967 unsigned int filter; /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */
968 unsigned char reserved[60]; /* reserved */
969};
970
971#ifndef __KERNEL__
972struct snd_timer_status {
973 struct timespec tstamp; /* Timestamp - last update */
974 unsigned int resolution; /* current period resolution in ns */
975 unsigned int lost; /* counter of master tick lost */
976 unsigned int overrun; /* count of read queue overruns */
977 unsigned int queue; /* used queue size */
978 unsigned char reserved[64]; /* reserved */
979};
980#endif
981
982/*
983 * This structure describes the userspace-driven timer. Such timers are purely virtual,
984 * and can only be triggered from software (for instance, by userspace application).
985 */
986struct snd_timer_uinfo {
987 /* To pretend being a normal timer, we need to know the resolution in ns. */
988 __u64 resolution;
989 int fd;
990 unsigned int id;
991 unsigned char reserved[16];
992};
993
994#define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int)
995#define SNDRV_TIMER_IOCTL_NEXT_DEVICE _IOWR('T', 0x01, struct snd_timer_id)
996#define SNDRV_TIMER_IOCTL_TREAD_OLD _IOW('T', 0x02, int)
997#define SNDRV_TIMER_IOCTL_GINFO _IOWR('T', 0x03, struct snd_timer_ginfo)
998#define SNDRV_TIMER_IOCTL_GPARAMS _IOW('T', 0x04, struct snd_timer_gparams)
999#define SNDRV_TIMER_IOCTL_GSTATUS _IOWR('T', 0x05, struct snd_timer_gstatus)
1000#define SNDRV_TIMER_IOCTL_SELECT _IOW('T', 0x10, struct snd_timer_select)
1001#define SNDRV_TIMER_IOCTL_INFO _IOR('T', 0x11, struct snd_timer_info)
1002#define SNDRV_TIMER_IOCTL_PARAMS _IOW('T', 0x12, struct snd_timer_params)
1003#define SNDRV_TIMER_IOCTL_STATUS _IOR('T', 0x14, struct snd_timer_status)
1004/* The following four ioctls are changed since 1.0.9 due to confliction */
1005#define SNDRV_TIMER_IOCTL_START _IO('T', 0xa0)
1006#define SNDRV_TIMER_IOCTL_STOP _IO('T', 0xa1)
1007#define SNDRV_TIMER_IOCTL_CONTINUE _IO('T', 0xa2)
1008#define SNDRV_TIMER_IOCTL_PAUSE _IO('T', 0xa3)
1009#define SNDRV_TIMER_IOCTL_TREAD64 _IOW('T', 0xa4, int)
1010#define SNDRV_TIMER_IOCTL_CREATE _IOWR('T', 0xa5, struct snd_timer_uinfo)
1011#define SNDRV_TIMER_IOCTL_TRIGGER _IO('T', 0xa6)
1012
1013#if __BITS_PER_LONG == 64
1014#define SNDRV_TIMER_IOCTL_TREAD SNDRV_TIMER_IOCTL_TREAD_OLD
1015#else
1016#define SNDRV_TIMER_IOCTL_TREAD ((sizeof(__kernel_long_t) >= sizeof(time_t)) ? \
1017 SNDRV_TIMER_IOCTL_TREAD_OLD : \
1018 SNDRV_TIMER_IOCTL_TREAD64)
1019#endif
1020
1021struct snd_timer_read {
1022 unsigned int resolution;
1023 unsigned int ticks;
1024};
1025
1026enum {
1027 SNDRV_TIMER_EVENT_RESOLUTION = 0, /* val = resolution in ns */
1028 SNDRV_TIMER_EVENT_TICK, /* val = ticks */
1029 SNDRV_TIMER_EVENT_START, /* val = resolution in ns */
1030 SNDRV_TIMER_EVENT_STOP, /* val = 0 */
1031 SNDRV_TIMER_EVENT_CONTINUE, /* val = resolution in ns */
1032 SNDRV_TIMER_EVENT_PAUSE, /* val = 0 */
1033 SNDRV_TIMER_EVENT_EARLY, /* val = 0, early event */
1034 SNDRV_TIMER_EVENT_SUSPEND, /* val = 0 */
1035 SNDRV_TIMER_EVENT_RESUME, /* val = resolution in ns */
1036 /* master timer events for slave timer instances */
1037 SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10,
1038 SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10,
1039 SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10,
1040 SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10,
1041 SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10,
1042 SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10,
1043};
1044
1045#ifndef __KERNEL__
1046struct snd_timer_tread {
1047 int event;
1048 __time_pad pad1;
1049 struct timespec tstamp;
1050 unsigned int val;
1051 __time_pad pad2;
1052};
1053#endif
1054
1055/****************************************************************************
1056 * *
1057 * Section for driver control interface - /dev/snd/control? *
1058 * *
1059 ****************************************************************************/
1060
1061#define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 9)
1062
1063struct snd_ctl_card_info {
1064 int card; /* card number */
1065 int pad; /* reserved for future (was type) */
1066 unsigned char id[16]; /* ID of card (user selectable) */
1067 unsigned char driver[16]; /* Driver name */
1068 unsigned char name[32]; /* Short name of soundcard */
1069 unsigned char longname[80]; /* name + info text about soundcard */
1070 unsigned char reserved_[16]; /* reserved for future (was ID of mixer) */
1071 unsigned char mixername[80]; /* visual mixer identification */
1072 unsigned char components[128]; /* card components / fine identification, delimited with one space (AC97 etc..) */
1073};
1074
1075typedef int __bitwise snd_ctl_elem_type_t;
1076#define SNDRV_CTL_ELEM_TYPE_NONE ((__force snd_ctl_elem_type_t) 0) /* invalid */
1077#define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1) /* boolean type */
1078#define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2) /* integer type */
1079#define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((__force snd_ctl_elem_type_t) 3) /* enumerated type */
1080#define SNDRV_CTL_ELEM_TYPE_BYTES ((__force snd_ctl_elem_type_t) 4) /* byte array */
1081#define SNDRV_CTL_ELEM_TYPE_IEC958 ((__force snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */
1082#define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((__force snd_ctl_elem_type_t) 6) /* 64-bit integer type */
1083#define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64
1084
1085typedef int __bitwise snd_ctl_elem_iface_t;
1086#define SNDRV_CTL_ELEM_IFACE_CARD ((__force snd_ctl_elem_iface_t) 0) /* global control */
1087#define SNDRV_CTL_ELEM_IFACE_HWDEP ((__force snd_ctl_elem_iface_t) 1) /* hardware dependent device */
1088#define SNDRV_CTL_ELEM_IFACE_MIXER ((__force snd_ctl_elem_iface_t) 2) /* virtual mixer device */
1089#define SNDRV_CTL_ELEM_IFACE_PCM ((__force snd_ctl_elem_iface_t) 3) /* PCM device */
1090#define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((__force snd_ctl_elem_iface_t) 4) /* RawMidi device */
1091#define SNDRV_CTL_ELEM_IFACE_TIMER ((__force snd_ctl_elem_iface_t) 5) /* timer device */
1092#define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((__force snd_ctl_elem_iface_t) 6) /* sequencer client */
1093#define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER
1094
1095#define SNDRV_CTL_ELEM_ACCESS_READ (1<<0)
1096#define SNDRV_CTL_ELEM_ACCESS_WRITE (1<<1)
1097#define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE)
1098#define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1<<2) /* control value may be changed without a notification */
1099/* (1 << 3) is unused. */
1100#define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1<<4) /* TLV read is possible */
1101#define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1<<5) /* TLV write is possible */
1102#define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE)
1103#define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1<<6) /* TLV command is possible */
1104#define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) /* control does actually nothing, but may be updated */
1105#define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) /* write lock */
1106#define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) /* write lock owner */
1107#define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1<<28) /* kernel use a TLV callback */
1108#define SNDRV_CTL_ELEM_ACCESS_USER (1<<29) /* user space element */
1109/* bits 30 and 31 are obsoleted (for indirect access) */
1110
1111/* for further details see the ACPI and PCI power management specification */
1112#define SNDRV_CTL_POWER_D0 0x0000 /* full On */
1113#define SNDRV_CTL_POWER_D1 0x0100 /* partial On */
1114#define SNDRV_CTL_POWER_D2 0x0200 /* partial On */
1115#define SNDRV_CTL_POWER_D3 0x0300 /* Off */
1116#define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) /* Off, with power */
1117#define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) /* Off, without power */
1118
1119#define SNDRV_CTL_ELEM_ID_NAME_MAXLEN 44
1120
1121struct snd_ctl_elem_id {
1122 unsigned int numid; /* numeric identifier, zero = invalid */
1123 snd_ctl_elem_iface_t iface; /* interface identifier */
1124 unsigned int device; /* device/client number */
1125 unsigned int subdevice; /* subdevice (substream) number */
1126 unsigned char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* ASCII name of item */
1127 unsigned int index; /* index of item */
1128};
1129
1130struct snd_ctl_elem_list {
1131 unsigned int offset; /* W: first element ID to get */
1132 unsigned int space; /* W: count of element IDs to get */
1133 unsigned int used; /* R: count of element IDs set */
1134 unsigned int count; /* R: count of all elements */
1135 struct snd_ctl_elem_id __user *pids; /* R: IDs */
1136 unsigned char reserved[50];
1137};
1138
1139struct snd_ctl_elem_info {
1140 struct snd_ctl_elem_id id; /* W: element ID */
1141 snd_ctl_elem_type_t type; /* R: value type - SNDRV_CTL_ELEM_TYPE_* */
1142 unsigned int access; /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */
1143 unsigned int count; /* count of values */
1144 __kernel_pid_t owner; /* owner's PID of this control */
1145 union {
1146 struct {
1147 long min; /* R: minimum value */
1148 long max; /* R: maximum value */
1149 long step; /* R: step (0 variable) */
1150 } integer;
1151 struct {
1152 long long min; /* R: minimum value */
1153 long long max; /* R: maximum value */
1154 long long step; /* R: step (0 variable) */
1155 } integer64;
1156 struct {
1157 unsigned int items; /* R: number of items */
1158 unsigned int item; /* W: item number */
1159 char name[64]; /* R: value name */
1160 __u64 names_ptr; /* W: names list (ELEM_ADD only) */
1161 unsigned int names_length;
1162 } enumerated;
1163 unsigned char reserved[128];
1164 } value;
1165 unsigned char reserved[64];
1166};
1167
1168struct snd_ctl_elem_value {
1169 struct snd_ctl_elem_id id; /* W: element ID */
1170 unsigned int indirect: 1; /* W: indirect access - obsoleted */
1171 union {
1172 union {
1173 long value[128];
1174 long *value_ptr; /* obsoleted */
1175 } integer;
1176 union {
1177 long long value[64];
1178 long long *value_ptr; /* obsoleted */
1179 } integer64;
1180 union {
1181 unsigned int item[128];
1182 unsigned int *item_ptr; /* obsoleted */
1183 } enumerated;
1184 union {
1185 unsigned char data[512];
1186 unsigned char *data_ptr; /* obsoleted */
1187 } bytes;
1188 struct snd_aes_iec958 iec958;
1189 } value; /* RO */
1190 unsigned char reserved[128];
1191};
1192
1193struct snd_ctl_tlv {
1194 unsigned int numid; /* control element numeric identification */
1195 unsigned int length; /* in bytes aligned to 4 */
1196 unsigned int tlv[]; /* first TLV */
1197};
1198
1199#define SNDRV_CTL_IOCTL_PVERSION _IOR('U', 0x00, int)
1200#define SNDRV_CTL_IOCTL_CARD_INFO _IOR('U', 0x01, struct snd_ctl_card_info)
1201#define SNDRV_CTL_IOCTL_ELEM_LIST _IOWR('U', 0x10, struct snd_ctl_elem_list)
1202#define SNDRV_CTL_IOCTL_ELEM_INFO _IOWR('U', 0x11, struct snd_ctl_elem_info)
1203#define SNDRV_CTL_IOCTL_ELEM_READ _IOWR('U', 0x12, struct snd_ctl_elem_value)
1204#define SNDRV_CTL_IOCTL_ELEM_WRITE _IOWR('U', 0x13, struct snd_ctl_elem_value)
1205#define SNDRV_CTL_IOCTL_ELEM_LOCK _IOW('U', 0x14, struct snd_ctl_elem_id)
1206#define SNDRV_CTL_IOCTL_ELEM_UNLOCK _IOW('U', 0x15, struct snd_ctl_elem_id)
1207#define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int)
1208#define SNDRV_CTL_IOCTL_ELEM_ADD _IOWR('U', 0x17, struct snd_ctl_elem_info)
1209#define SNDRV_CTL_IOCTL_ELEM_REPLACE _IOWR('U', 0x18, struct snd_ctl_elem_info)
1210#define SNDRV_CTL_IOCTL_ELEM_REMOVE _IOWR('U', 0x19, struct snd_ctl_elem_id)
1211#define SNDRV_CTL_IOCTL_TLV_READ _IOWR('U', 0x1a, struct snd_ctl_tlv)
1212#define SNDRV_CTL_IOCTL_TLV_WRITE _IOWR('U', 0x1b, struct snd_ctl_tlv)
1213#define SNDRV_CTL_IOCTL_TLV_COMMAND _IOWR('U', 0x1c, struct snd_ctl_tlv)
1214#define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int)
1215#define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info)
1216#define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int)
1217#define SNDRV_CTL_IOCTL_PCM_INFO _IOWR('U', 0x31, struct snd_pcm_info)
1218#define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int)
1219#define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int)
1220#define SNDRV_CTL_IOCTL_RAWMIDI_INFO _IOWR('U', 0x41, struct snd_rawmidi_info)
1221#define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int)
1222#define SNDRV_CTL_IOCTL_UMP_NEXT_DEVICE _IOWR('U', 0x43, int)
1223#define SNDRV_CTL_IOCTL_UMP_ENDPOINT_INFO _IOWR('U', 0x44, struct snd_ump_endpoint_info)
1224#define SNDRV_CTL_IOCTL_UMP_BLOCK_INFO _IOWR('U', 0x45, struct snd_ump_block_info)
1225#define SNDRV_CTL_IOCTL_POWER _IOWR('U', 0xd0, int)
1226#define SNDRV_CTL_IOCTL_POWER_STATE _IOR('U', 0xd1, int)
1227
1228/*
1229 * Read interface.
1230 */
1231
1232enum sndrv_ctl_event_type {
1233 SNDRV_CTL_EVENT_ELEM = 0,
1234 SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM,
1235};
1236
1237#define SNDRV_CTL_EVENT_MASK_VALUE (1<<0) /* element value was changed */
1238#define SNDRV_CTL_EVENT_MASK_INFO (1<<1) /* element info was changed */
1239#define SNDRV_CTL_EVENT_MASK_ADD (1<<2) /* element was added */
1240#define SNDRV_CTL_EVENT_MASK_TLV (1<<3) /* element TLV tree was changed */
1241#define SNDRV_CTL_EVENT_MASK_REMOVE (~0U) /* element was removed */
1242
1243struct snd_ctl_event {
1244 int type; /* event type - SNDRV_CTL_EVENT_* */
1245 union {
1246 struct {
1247 unsigned int mask;
1248 struct snd_ctl_elem_id id;
1249 } elem;
1250 unsigned char data8[60];
1251 } data;
1252};
1253
1254/*
1255 * Control names
1256 */
1257
1258#define SNDRV_CTL_NAME_NONE ""
1259#define SNDRV_CTL_NAME_PLAYBACK "Playback "
1260#define SNDRV_CTL_NAME_CAPTURE "Capture "
1261
1262#define SNDRV_CTL_NAME_IEC958_NONE ""
1263#define SNDRV_CTL_NAME_IEC958_SWITCH "Switch"
1264#define SNDRV_CTL_NAME_IEC958_VOLUME "Volume"
1265#define SNDRV_CTL_NAME_IEC958_DEFAULT "Default"
1266#define SNDRV_CTL_NAME_IEC958_MASK "Mask"
1267#define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask"
1268#define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask"
1269#define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream"
1270#define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what
1271
1272#endif /* _UAPI__SOUND_ASOUND_H */
1273