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 __SOUND_ASOUND_H
9#define __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#include <stdlib.h>
20#include <time.h>
21
22/*
23 * protocol version
24 */
25
26#define SNDRV_PROTOCOL_VERSION(major, minor, subminor) (((major)<<16)|((minor)<<8)|(subminor))
27#define SNDRV_PROTOCOL_MAJOR(version) (((version)>>16)&0xffff)
28#define SNDRV_PROTOCOL_MINOR(version) (((version)>>8)&0xff)
29#define SNDRV_PROTOCOL_MICRO(version) ((version)&0xff)
30#define SNDRV_PROTOCOL_INCOMPATIBLE(kversion, uversion) \
31 (SNDRV_PROTOCOL_MAJOR(kversion) != SNDRV_PROTOCOL_MAJOR(uversion) || \
32 (SNDRV_PROTOCOL_MAJOR(kversion) == SNDRV_PROTOCOL_MAJOR(uversion) && \
33 SNDRV_PROTOCOL_MINOR(kversion) != SNDRV_PROTOCOL_MINOR(uversion)))
34
35/****************************************************************************
36 * *
37 * Digital audio interface *
38 * *
39 ****************************************************************************/
40
41#define AES_IEC958_STATUS_SIZE 24
42
43struct snd_aes_iec958 {
44 unsigned char status[AES_IEC958_STATUS_SIZE]; /* AES/IEC958 channel status bits */
45 unsigned char subcode[147]; /* AES/IEC958 subcode bits */
46 unsigned char pad; /* nothing */
47 unsigned char dig_subframe[4]; /* AES/IEC958 subframe bits */
48};
49
50/****************************************************************************
51 * *
52 * CEA-861 Audio InfoFrame. Used in HDMI and DisplayPort *
53 * *
54 ****************************************************************************/
55
56struct snd_cea_861_aud_if {
57 unsigned char db1_ct_cc; /* coding type and channel count */
58 unsigned char db2_sf_ss; /* sample frequency and size */
59 unsigned char db3; /* not used, all zeros */
60 unsigned char db4_ca; /* channel allocation code */
61 unsigned char db5_dminh_lsv; /* downmix inhibit & level-shift values */
62};
63
64/****************************************************************************
65 * *
66 * Section for driver hardware dependent interface - /dev/snd/hw? *
67 * *
68 ****************************************************************************/
69
70#define SNDRV_HWDEP_VERSION SNDRV_PROTOCOL_VERSION(1, 0, 1)
71
72enum {
73 SNDRV_HWDEP_IFACE_OPL2 = 0,
74 SNDRV_HWDEP_IFACE_OPL3,
75 SNDRV_HWDEP_IFACE_OPL4,
76 SNDRV_HWDEP_IFACE_SB16CSP, /* Creative Signal Processor */
77 SNDRV_HWDEP_IFACE_EMU10K1, /* FX8010 processor in EMU10K1 chip */
78 SNDRV_HWDEP_IFACE_YSS225, /* Yamaha FX processor */
79 SNDRV_HWDEP_IFACE_ICS2115, /* Wavetable synth */
80 SNDRV_HWDEP_IFACE_SSCAPE, /* Ensoniq SoundScape ISA card (MC68EC000) */
81 SNDRV_HWDEP_IFACE_VX, /* Digigram VX cards */
82 SNDRV_HWDEP_IFACE_MIXART, /* Digigram miXart cards */
83 SNDRV_HWDEP_IFACE_USX2Y, /* Tascam US122, US224 & US428 usb */
84 SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */
85 SNDRV_HWDEP_IFACE_BLUETOOTH, /* Bluetooth audio */
86 SNDRV_HWDEP_IFACE_USX2Y_PCM, /* Tascam US122, US224 & US428 rawusb pcm */
87 SNDRV_HWDEP_IFACE_PCXHR, /* Digigram PCXHR */
88 SNDRV_HWDEP_IFACE_SB_RC, /* SB Extigy/Audigy2NX remote control */
89 SNDRV_HWDEP_IFACE_HDA, /* HD-audio */
90 SNDRV_HWDEP_IFACE_USB_STREAM, /* direct access to usb stream */
91 SNDRV_HWDEP_IFACE_FW_DICE, /* TC DICE FireWire device */
92 SNDRV_HWDEP_IFACE_FW_FIREWORKS, /* Echo Audio Fireworks based device */
93 SNDRV_HWDEP_IFACE_FW_BEBOB, /* BridgeCo BeBoB based device */
94 SNDRV_HWDEP_IFACE_FW_OXFW, /* Oxford OXFW970/971 based device */
95 SNDRV_HWDEP_IFACE_FW_DIGI00X, /* Digidesign Digi 002/003 family */
96 SNDRV_HWDEP_IFACE_FW_TASCAM, /* TASCAM FireWire series */
97 SNDRV_HWDEP_IFACE_LINE6, /* Line6 USB processors */
98 SNDRV_HWDEP_IFACE_FW_MOTU, /* MOTU FireWire series */
99 SNDRV_HWDEP_IFACE_FW_FIREFACE, /* RME Fireface series */
100
101 /* Don't forget to change the following: */
102 SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_FW_FIREFACE
103};
104
105struct snd_hwdep_info {
106 unsigned int device; /* WR: device number */
107 int card; /* R: card number */
108 unsigned char id[64]; /* ID (user selectable) */
109 unsigned char name[80]; /* hwdep name */
110 int iface; /* hwdep interface */
111 unsigned char reserved[64]; /* reserved for future */
112};
113
114/* generic DSP loader */
115struct snd_hwdep_dsp_status {
116 unsigned int version; /* R: driver-specific version */
117 unsigned char id[32]; /* R: driver-specific ID string */
118 unsigned int num_dsps; /* R: number of DSP images to transfer */
119 unsigned int dsp_loaded; /* R: bit flags indicating the loaded DSPs */
120 unsigned int chip_ready; /* R: 1 = initialization finished */
121 unsigned char reserved[16]; /* reserved for future use */
122};
123
124struct snd_hwdep_dsp_image {
125 unsigned int index; /* W: DSP index */
126 unsigned char name[64]; /* W: ID (e.g. file name) */
127 unsigned char *image; /* W: binary image */
128 size_t length; /* W: size of image in bytes */
129 unsigned long driver_data; /* W: driver-specific data */
130};
131
132#define SNDRV_HWDEP_IOCTL_PVERSION _IOR ('H', 0x00, int)
133#define SNDRV_HWDEP_IOCTL_INFO _IOR ('H', 0x01, struct snd_hwdep_info)
134#define SNDRV_HWDEP_IOCTL_DSP_STATUS _IOR('H', 0x02, struct snd_hwdep_dsp_status)
135#define SNDRV_HWDEP_IOCTL_DSP_LOAD _IOW('H', 0x03, struct snd_hwdep_dsp_image)
136
137/*****************************************************************************
138 * *
139 * Digital Audio (PCM) interface - /dev/snd/pcm?? *
140 * *
141 *****************************************************************************/
142
143#define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 18)
144
145typedef unsigned long snd_pcm_uframes_t;
146typedef signed long snd_pcm_sframes_t;
147
148enum {
149 SNDRV_PCM_CLASS_GENERIC = 0, /* standard mono or stereo device */
150 SNDRV_PCM_CLASS_MULTI, /* multichannel device */
151 SNDRV_PCM_CLASS_MODEM, /* software modem class */
152 SNDRV_PCM_CLASS_DIGITIZER, /* digitizer class */
153 /* Don't forget to change the following: */
154 SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER,
155};
156
157enum {
158 SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, /* mono or stereo subdevices are mixed together */
159 SNDRV_PCM_SUBCLASS_MULTI_MIX, /* multichannel subdevices are mixed together */
160 /* Don't forget to change the following: */
161 SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX,
162};
163
164enum {
165 SNDRV_PCM_STREAM_PLAYBACK = 0,
166 SNDRV_PCM_STREAM_CAPTURE,
167 SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE,
168};
169
170typedef int __bitwise snd_pcm_access_t;
171#define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED ((snd_pcm_access_t) 0) /* interleaved mmap */
172#define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED ((snd_pcm_access_t) 1) /* noninterleaved mmap */
173#define SNDRV_PCM_ACCESS_MMAP_COMPLEX ((snd_pcm_access_t) 2) /* complex mmap */
174#define SNDRV_PCM_ACCESS_RW_INTERLEAVED ((snd_pcm_access_t) 3) /* readi/writei */
175#define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED ((snd_pcm_access_t) 4) /* readn/writen */
176#define SNDRV_PCM_ACCESS_LAST SNDRV_PCM_ACCESS_RW_NONINTERLEAVED
177
178typedef int __bitwise snd_pcm_format_t;
179#define SNDRV_PCM_FORMAT_S8 ((snd_pcm_format_t) 0)
180#define SNDRV_PCM_FORMAT_U8 ((snd_pcm_format_t) 1)
181#define SNDRV_PCM_FORMAT_S16_LE ((snd_pcm_format_t) 2)
182#define SNDRV_PCM_FORMAT_S16_BE ((snd_pcm_format_t) 3)
183#define SNDRV_PCM_FORMAT_U16_LE ((snd_pcm_format_t) 4)
184#define SNDRV_PCM_FORMAT_U16_BE ((snd_pcm_format_t) 5)
185#define SNDRV_PCM_FORMAT_S24_LE ((snd_pcm_format_t) 6) /* low three bytes */
186#define SNDRV_PCM_FORMAT_S24_BE ((snd_pcm_format_t) 7) /* low three bytes */
187#define SNDRV_PCM_FORMAT_U24_LE ((snd_pcm_format_t) 8) /* low three bytes */
188#define SNDRV_PCM_FORMAT_U24_BE ((snd_pcm_format_t) 9) /* low three bytes */
189/*
190 * For S32/U32 formats, 'msbits' hardware parameter is often used to deliver information about the
191 * available bit count in most significant bit. It's for the case of so-called 'left-justified' or
192 * `right-padding` sample which has less width than 32 bit.
193 */
194#define SNDRV_PCM_FORMAT_S32_LE ((snd_pcm_format_t) 10)
195#define SNDRV_PCM_FORMAT_S32_BE ((snd_pcm_format_t) 11)
196#define SNDRV_PCM_FORMAT_U32_LE ((snd_pcm_format_t) 12)
197#define SNDRV_PCM_FORMAT_U32_BE ((snd_pcm_format_t) 13)
198#define SNDRV_PCM_FORMAT_FLOAT_LE ((snd_pcm_format_t) 14) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */
199#define SNDRV_PCM_FORMAT_FLOAT_BE ((snd_pcm_format_t) 15) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */
200#define SNDRV_PCM_FORMAT_FLOAT64_LE ((snd_pcm_format_t) 16) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */
201#define SNDRV_PCM_FORMAT_FLOAT64_BE ((snd_pcm_format_t) 17) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */
202#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((snd_pcm_format_t) 18) /* IEC-958 subframe, Little Endian */
203#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((snd_pcm_format_t) 19) /* IEC-958 subframe, Big Endian */
204#define SNDRV_PCM_FORMAT_MU_LAW ((snd_pcm_format_t) 20)
205#define SNDRV_PCM_FORMAT_A_LAW ((snd_pcm_format_t) 21)
206#define SNDRV_PCM_FORMAT_IMA_ADPCM ((snd_pcm_format_t) 22)
207#define SNDRV_PCM_FORMAT_MPEG ((snd_pcm_format_t) 23)
208#define SNDRV_PCM_FORMAT_GSM ((snd_pcm_format_t) 24)
209#define SNDRV_PCM_FORMAT_S20_LE ((snd_pcm_format_t) 25) /* in four bytes, LSB justified */
210#define SNDRV_PCM_FORMAT_S20_BE ((snd_pcm_format_t) 26) /* in four bytes, LSB justified */
211#define SNDRV_PCM_FORMAT_U20_LE ((snd_pcm_format_t) 27) /* in four bytes, LSB justified */
212#define SNDRV_PCM_FORMAT_U20_BE ((snd_pcm_format_t) 28) /* in four bytes, LSB justified */
213/* gap in the numbering for a future standard linear format */
214#define SNDRV_PCM_FORMAT_SPECIAL ((snd_pcm_format_t) 31)
215#define SNDRV_PCM_FORMAT_S24_3LE ((snd_pcm_format_t) 32) /* in three bytes */
216#define SNDRV_PCM_FORMAT_S24_3BE ((snd_pcm_format_t) 33) /* in three bytes */
217#define SNDRV_PCM_FORMAT_U24_3LE ((snd_pcm_format_t) 34) /* in three bytes */
218#define SNDRV_PCM_FORMAT_U24_3BE ((snd_pcm_format_t) 35) /* in three bytes */
219#define SNDRV_PCM_FORMAT_S20_3LE ((snd_pcm_format_t) 36) /* in three bytes */
220#define SNDRV_PCM_FORMAT_S20_3BE ((snd_pcm_format_t) 37) /* in three bytes */
221#define SNDRV_PCM_FORMAT_U20_3LE ((snd_pcm_format_t) 38) /* in three bytes */
222#define SNDRV_PCM_FORMAT_U20_3BE ((snd_pcm_format_t) 39) /* in three bytes */
223#define SNDRV_PCM_FORMAT_S18_3LE ((snd_pcm_format_t) 40) /* in three bytes */
224#define SNDRV_PCM_FORMAT_S18_3BE ((snd_pcm_format_t) 41) /* in three bytes */
225#define SNDRV_PCM_FORMAT_U18_3LE ((snd_pcm_format_t) 42) /* in three bytes */
226#define SNDRV_PCM_FORMAT_U18_3BE ((snd_pcm_format_t) 43) /* in three bytes */
227#define SNDRV_PCM_FORMAT_G723_24 ((snd_pcm_format_t) 44) /* 8 samples in 3 bytes */
228#define SNDRV_PCM_FORMAT_G723_24_1B ((snd_pcm_format_t) 45) /* 1 sample in 1 byte */
229#define SNDRV_PCM_FORMAT_G723_40 ((snd_pcm_format_t) 46) /* 8 Samples in 5 bytes */
230#define SNDRV_PCM_FORMAT_G723_40_1B ((snd_pcm_format_t) 47) /* 1 sample in 1 byte */
231#define SNDRV_PCM_FORMAT_DSD_U8 ((snd_pcm_format_t) 48) /* DSD, 1-byte samples DSD (x8) */
232#define SNDRV_PCM_FORMAT_DSD_U16_LE ((snd_pcm_format_t) 49) /* DSD, 2-byte samples DSD (x16), little endian */
233#define SNDRV_PCM_FORMAT_DSD_U32_LE ((snd_pcm_format_t) 50) /* DSD, 4-byte samples DSD (x32), little endian */
234#define SNDRV_PCM_FORMAT_DSD_U16_BE ((snd_pcm_format_t) 51) /* DSD, 2-byte samples DSD (x16), big endian */
235#define SNDRV_PCM_FORMAT_DSD_U32_BE ((snd_pcm_format_t) 52) /* DSD, 4-byte samples DSD (x32), big endian */
236#define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_DSD_U32_BE
237#define SNDRV_PCM_FORMAT_FIRST SNDRV_PCM_FORMAT_S8
238
239#ifdef SNDRV_LITTLE_ENDIAN
240#define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE
241#define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE
242#define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE
243#define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE
244#define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE
245#define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE
246#define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE
247#define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE
248#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE
249#define SNDRV_PCM_FORMAT_S20 SNDRV_PCM_FORMAT_S20_LE
250#define SNDRV_PCM_FORMAT_U20 SNDRV_PCM_FORMAT_U20_LE
251#endif
252#ifdef SNDRV_BIG_ENDIAN
253#define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE
254#define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE
255#define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE
256#define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE
257#define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE
258#define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE
259#define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE
260#define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE
261#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE
262#define SNDRV_PCM_FORMAT_S20 SNDRV_PCM_FORMAT_S20_BE
263#define SNDRV_PCM_FORMAT_U20 SNDRV_PCM_FORMAT_U20_BE
264#endif
265
266typedef int __bitwise snd_pcm_subformat_t;
267#define SNDRV_PCM_SUBFORMAT_STD ((snd_pcm_subformat_t) 0)
268#define SNDRV_PCM_SUBFORMAT_MSBITS_MAX ((snd_pcm_subformat_t) 1)
269#define SNDRV_PCM_SUBFORMAT_MSBITS_20 ((snd_pcm_subformat_t) 2)
270#define SNDRV_PCM_SUBFORMAT_MSBITS_24 ((snd_pcm_subformat_t) 3)
271#define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_MSBITS_24
272
273#define SNDRV_PCM_INFO_MMAP 0x00000001 /* hardware supports mmap */
274#define SNDRV_PCM_INFO_MMAP_VALID 0x00000002 /* period data are valid during transfer */
275#define SNDRV_PCM_INFO_DOUBLE 0x00000004 /* Double buffering needed for PCM start/stop */
276#define SNDRV_PCM_INFO_BATCH 0x00000010 /* double buffering */
277#define SNDRV_PCM_INFO_SYNC_APPLPTR 0x00000020 /* need the explicit sync of appl_ptr update */
278#define SNDRV_PCM_INFO_PERFECT_DRAIN 0x00000040 /* silencing at the end of stream is not required */
279#define SNDRV_PCM_INFO_INTERLEAVED 0x00000100 /* channels are interleaved */
280#define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200 /* channels are not interleaved */
281#define SNDRV_PCM_INFO_COMPLEX 0x00000400 /* complex frame organization (mmap only) */
282#define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000 /* hardware transfer block of samples */
283#define SNDRV_PCM_INFO_OVERRANGE 0x00020000 /* hardware supports ADC (capture) overrange detection */
284#define SNDRV_PCM_INFO_RESUME 0x00040000 /* hardware supports stream resume after suspend */
285#define SNDRV_PCM_INFO_PAUSE 0x00080000 /* pause ioctl is supported */
286#define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000 /* only half duplex */
287#define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000 /* playback and capture stream are somewhat correlated */
288#define SNDRV_PCM_INFO_SYNC_START 0x00400000 /* pcm support some kind of sync go */
289#define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP 0x00800000 /* period wakeup can be disabled */
290#define SNDRV_PCM_INFO_HAS_WALL_CLOCK 0x01000000 /* (Deprecated)has audio wall clock for audio/system time sync */
291#define SNDRV_PCM_INFO_HAS_LINK_ATIME 0x01000000 /* report hardware link audio time, reset on startup */
292#define SNDRV_PCM_INFO_HAS_LINK_ABSOLUTE_ATIME 0x02000000 /* report absolute hardware link audio time, not reset on startup */
293#define SNDRV_PCM_INFO_HAS_LINK_ESTIMATED_ATIME 0x04000000 /* report estimated link audio time */
294#define SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME 0x08000000 /* report synchronized audio/system time */
295#define SNDRV_PCM_INFO_EXPLICIT_SYNC 0x10000000 /* needs explicit sync of pointers and data */
296#define SNDRV_PCM_INFO_NO_REWINDS 0x20000000 /* hardware can only support monotonic changes of appl_ptr */
297#define SNDRV_PCM_INFO_DRAIN_TRIGGER 0x40000000 /* internal kernel flag - trigger in drain */
298#define SNDRV_PCM_INFO_FIFO_IN_FRAMES 0x80000000 /* internal kernel flag - FIFO size is in frames */
299
300#if (__BITS_PER_LONG == 32 && defined(__USE_TIME_BITS64)) || defined __KERNEL__
301#define __SND_STRUCT_TIME64
302#endif
303
304typedef int __bitwise snd_pcm_state_t;
305#define SNDRV_PCM_STATE_OPEN ((snd_pcm_state_t) 0) /* stream is open */
306#define SNDRV_PCM_STATE_SETUP ((snd_pcm_state_t) 1) /* stream has a setup */
307#define SNDRV_PCM_STATE_PREPARED ((snd_pcm_state_t) 2) /* stream is ready to start */
308#define SNDRV_PCM_STATE_RUNNING ((snd_pcm_state_t) 3) /* stream is running */
309#define SNDRV_PCM_STATE_XRUN ((snd_pcm_state_t) 4) /* stream reached an xrun */
310#define SNDRV_PCM_STATE_DRAINING ((snd_pcm_state_t) 5) /* stream is draining */
311#define SNDRV_PCM_STATE_PAUSED ((snd_pcm_state_t) 6) /* stream is paused */
312#define SNDRV_PCM_STATE_SUSPENDED ((snd_pcm_state_t) 7) /* hardware is suspended */
313#define SNDRV_PCM_STATE_DISCONNECTED ((snd_pcm_state_t) 8) /* hardware is disconnected */
314#define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED
315
316enum {
317 SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000,
318 SNDRV_PCM_MMAP_OFFSET_STATUS_OLD = 0x80000000,
319 SNDRV_PCM_MMAP_OFFSET_CONTROL_OLD = 0x81000000,
320 SNDRV_PCM_MMAP_OFFSET_STATUS_NEW = 0x82000000,
321 SNDRV_PCM_MMAP_OFFSET_CONTROL_NEW = 0x83000000,
322#ifdef __SND_STRUCT_TIME64
323 SNDRV_PCM_MMAP_OFFSET_STATUS = SNDRV_PCM_MMAP_OFFSET_STATUS_NEW,
324 SNDRV_PCM_MMAP_OFFSET_CONTROL = SNDRV_PCM_MMAP_OFFSET_CONTROL_NEW,
325#else
326 SNDRV_PCM_MMAP_OFFSET_STATUS = SNDRV_PCM_MMAP_OFFSET_STATUS_OLD,
327 SNDRV_PCM_MMAP_OFFSET_CONTROL = SNDRV_PCM_MMAP_OFFSET_CONTROL_OLD,
328#endif
329};
330
331union snd_pcm_sync_id {
332 unsigned char id[16];
333 unsigned short id16[8];
334 unsigned int id32[4];
335} __attribute__((deprecated));
336
337struct snd_pcm_info {
338 unsigned int device; /* RO/WR (control): device number */
339 unsigned int subdevice; /* RO/WR (control): subdevice number */
340 int stream; /* RO/WR (control): stream direction */
341 int card; /* R: card number */
342 unsigned char id[64]; /* ID (user selectable) */
343 unsigned char name[80]; /* name of this device */
344 unsigned char subname[32]; /* subdevice name */
345 int dev_class; /* SNDRV_PCM_CLASS_* */
346 int dev_subclass; /* SNDRV_PCM_SUBCLASS_* */
347 unsigned int subdevices_count;
348 unsigned int subdevices_avail;
349 unsigned char pad1[16]; /* was: hardware synchronization ID */
350 unsigned char reserved[64]; /* reserved for future... */
351};
352
353typedef int snd_pcm_hw_param_t;
354#define SNDRV_PCM_HW_PARAM_ACCESS 0 /* Access type */
355#define SNDRV_PCM_HW_PARAM_FORMAT 1 /* Format */
356#define SNDRV_PCM_HW_PARAM_SUBFORMAT 2 /* Subformat */
357#define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS
358#define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT
359
360#define SNDRV_PCM_HW_PARAM_SAMPLE_BITS 8 /* Bits per sample */
361#define SNDRV_PCM_HW_PARAM_FRAME_BITS 9 /* Bits per frame */
362#define SNDRV_PCM_HW_PARAM_CHANNELS 10 /* Channels */
363#define SNDRV_PCM_HW_PARAM_RATE 11 /* Approx rate */
364#define SNDRV_PCM_HW_PARAM_PERIOD_TIME 12 /* Approx distance between
365 * interrupts in us
366 */
367#define SNDRV_PCM_HW_PARAM_PERIOD_SIZE 13 /* Approx frames between
368 * interrupts
369 */
370#define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14 /* Approx bytes between
371 * interrupts
372 */
373#define SNDRV_PCM_HW_PARAM_PERIODS 15 /* Approx interrupts per
374 * buffer
375 */
376#define SNDRV_PCM_HW_PARAM_BUFFER_TIME 16 /* Approx duration of buffer
377 * in us
378 */
379#define SNDRV_PCM_HW_PARAM_BUFFER_SIZE 17 /* Size of buffer in frames */
380#define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18 /* Size of buffer in bytes */
381#define SNDRV_PCM_HW_PARAM_TICK_TIME 19 /* Approx tick duration in us */
382#define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS
383#define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME
384
385#define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0) /* avoid rate resampling */
386#define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER (1<<1) /* export buffer */
387#define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP (1<<2) /* disable period wakeups */
388#define SNDRV_PCM_HW_PARAMS_NO_DRAIN_SILENCE (1<<3) /* suppress drain with the filling
389 * of the silence samples
390 */
391
392struct snd_interval {
393 unsigned int min, max;
394 unsigned int openmin:1,
395 openmax:1,
396 integer:1,
397 empty:1;
398};
399
400#define SNDRV_MASK_MAX 256
401
402struct snd_mask {
403 __u32 bits[(SNDRV_MASK_MAX+31)/32];
404};
405
406struct snd_pcm_hw_params {
407 unsigned int flags;
408 struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK -
409 SNDRV_PCM_HW_PARAM_FIRST_MASK + 1];
410 struct snd_mask mres[5]; /* reserved masks */
411 struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL -
412 SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1];
413 struct snd_interval ires[9]; /* reserved intervals */
414 unsigned int rmask; /* W: requested masks */
415 unsigned int cmask; /* R: changed masks */
416 unsigned int info; /* R: Info flags for returned setup */
417 unsigned int msbits; /* R: used most significant bits (in sample bit-width) */
418 unsigned int rate_num; /* R: rate numerator */
419 unsigned int rate_den; /* R: rate denominator */
420 snd_pcm_uframes_t fifo_size; /* R: chip FIFO size in frames */
421 unsigned char sync[16]; /* R: synchronization ID (perfect sync - one clock source) */
422 unsigned char reserved[48]; /* reserved for future */
423};
424
425enum {
426 SNDRV_PCM_TSTAMP_NONE = 0,
427 SNDRV_PCM_TSTAMP_ENABLE,
428 SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE,
429};
430
431struct snd_pcm_sw_params {
432 int tstamp_mode; /* timestamp mode */
433 unsigned int period_step;
434 unsigned int sleep_min; /* min ticks to sleep */
435 snd_pcm_uframes_t avail_min; /* min avail frames for wakeup */
436 snd_pcm_uframes_t xfer_align; /* obsolete: xfer size need to be a multiple */
437 snd_pcm_uframes_t start_threshold; /* min hw_avail frames for automatic start */
438 /*
439 * The following two thresholds alleviate playback buffer underruns; when
440 * hw_avail drops below the threshold, the respective action is triggered:
441 */
442 snd_pcm_uframes_t stop_threshold; /* - stop playback */
443 snd_pcm_uframes_t silence_threshold; /* - pre-fill buffer with silence */
444 snd_pcm_uframes_t silence_size; /* max size of silence pre-fill; when >= boundary,
445 * fill played area with silence immediately */
446 snd_pcm_uframes_t boundary; /* pointers wrap point */
447 unsigned int proto; /* protocol version */
448 unsigned int tstamp_type; /* timestamp type (req. proto >= 2.0.12) */
449 unsigned char reserved[56]; /* reserved for future */
450};
451
452struct snd_pcm_channel_info {
453 unsigned int channel;
454 __kernel_off_t offset; /* mmap offset */
455 unsigned int first; /* offset to first sample in bits */
456 unsigned int step; /* samples distance in bits */
457};
458
459enum {
460 /*
461 * first definition for backwards compatibility only,
462 * maps to wallclock/link time for HDAudio playback and DEFAULT/DMA time for everything else
463 */
464 SNDRV_PCM_AUDIO_TSTAMP_TYPE_COMPAT = 0,
465
466 /* timestamp definitions */
467 SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT = 1, /* DMA time, reported as per hw_ptr */
468 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK = 2, /* link time reported by sample or wallclock counter, reset on startup */
469 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE = 3, /* link time reported by sample or wallclock counter, not reset on startup */
470 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED = 4, /* link time estimated indirectly */
471 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED = 5, /* link time synchronized with system time */
472 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LAST = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED
473};
474
475/* explicit padding avoids incompatibility between i386 and x86-64 */
476typedef struct { unsigned char pad[sizeof(time_t) - sizeof(int)]; } __time_pad;
477
478struct snd_pcm_status {
479 snd_pcm_state_t state; /* stream state */
480 __time_pad pad1; /* align to timespec */
481 struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */
482 struct timespec tstamp; /* reference timestamp */
483 snd_pcm_uframes_t appl_ptr; /* appl ptr */
484 snd_pcm_uframes_t hw_ptr; /* hw ptr */
485 snd_pcm_sframes_t delay; /* current delay in frames */
486 snd_pcm_uframes_t avail; /* number of frames available */
487 snd_pcm_uframes_t avail_max; /* max frames available on hw since last status */
488 snd_pcm_uframes_t overrange; /* count of ADC (capture) overrange detections from last status */
489 snd_pcm_state_t suspended_state; /* suspended stream state */
490 __u32 audio_tstamp_data; /* needed for 64-bit alignment, used for configs/report to/from userspace */
491 struct timespec audio_tstamp; /* sample counter, wall clock, PHC or on-demand sync'ed */
492 struct timespec driver_tstamp; /* useful in case reference system tstamp is reported with delay */
493 __u32 audio_tstamp_accuracy; /* in ns units, only valid if indicated in audio_tstamp_data */
494 unsigned char reserved[52-2*sizeof(struct timespec)]; /* must be filled with zero */
495};
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#define __snd_timespec64 timespec
507struct __snd_timespec {
508 __s32 tv_sec;
509 __s32 tv_nsec;
510};
511#else
512#define __snd_pcm_mmap_status snd_pcm_mmap_status
513#define __snd_pcm_mmap_control snd_pcm_mmap_control
514#define __snd_pcm_sync_ptr snd_pcm_sync_ptr
515#define __snd_timespec timespec
516struct __snd_timespec64 {
517 __s64 tv_sec;
518 __s64 tv_nsec;
519};
520
521#endif
522
523struct __snd_pcm_mmap_status {
524 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */
525 int pad1; /* Needed for 64 bit alignment */
526 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */
527 struct __snd_timespec tstamp; /* Timestamp */
528 snd_pcm_state_t suspended_state; /* RO: suspended stream state */
529 struct __snd_timespec audio_tstamp; /* from sample counter or wall clock */
530};
531
532struct __snd_pcm_mmap_control {
533 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */
534 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */
535};
536
537#define SNDRV_PCM_SYNC_PTR_HWSYNC (1<<0) /* execute hwsync */
538#define SNDRV_PCM_SYNC_PTR_APPL (1<<1) /* get appl_ptr from driver (r/w op) */
539#define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1<<2) /* get avail_min from driver */
540
541struct __snd_pcm_sync_ptr {
542 unsigned int flags;
543 union {
544 struct __snd_pcm_mmap_status status;
545 unsigned char reserved[64];
546 } s;
547 union {
548 struct __snd_pcm_mmap_control control;
549 unsigned char reserved[64];
550 } c;
551};
552
553#if defined(__BYTE_ORDER) ? __BYTE_ORDER == __BIG_ENDIAN : defined(__BIG_ENDIAN)
554typedef char __pad_before_uframe[sizeof(__u64) - sizeof(snd_pcm_uframes_t)];
555typedef char __pad_after_uframe[0];
556#endif
557
558#if defined(__BYTE_ORDER) ? __BYTE_ORDER == __LITTLE_ENDIAN : defined(__LITTLE_ENDIAN)
559typedef char __pad_before_uframe[0];
560typedef char __pad_after_uframe[sizeof(__u64) - sizeof(snd_pcm_uframes_t)];
561#endif
562
563struct __snd_pcm_mmap_status64 {
564 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */
565 __u32 pad1; /* Needed for 64 bit alignment */
566 __pad_before_uframe __pad1;
567 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */
568 __pad_after_uframe __pad2;
569 struct __snd_timespec64 tstamp; /* Timestamp */
570 snd_pcm_state_t suspended_state;/* RO: suspended stream state */
571 __u32 pad3; /* Needed for 64 bit alignment */
572 struct __snd_timespec64 audio_tstamp; /* sample counter or wall clock */
573};
574
575struct __snd_pcm_mmap_control64 {
576 __pad_before_uframe __pad1;
577 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */
578 __pad_before_uframe __pad2; // This should be __pad_after_uframe, but binary
579 // backwards compatibility constraints prevent a fix.
580
581 __pad_before_uframe __pad3;
582 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */
583 __pad_after_uframe __pad4;
584};
585
586struct __snd_pcm_sync_ptr64 {
587 __u32 flags;
588 __u32 pad1;
589 union {
590 struct __snd_pcm_mmap_status64 status;
591 unsigned char reserved[64];
592 } s;
593 union {
594 struct __snd_pcm_mmap_control64 control;
595 unsigned char reserved[64];
596 } c;
597};
598
599struct snd_xferi {
600 snd_pcm_sframes_t result;
601 void *buf;
602 snd_pcm_uframes_t frames;
603};
604
605struct snd_xfern {
606 snd_pcm_sframes_t result;
607 void * *bufs;
608 snd_pcm_uframes_t frames;
609};
610
611enum {
612 SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0, /* gettimeofday equivalent */
613 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, /* posix_clock_monotonic equivalent */
614 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW, /* monotonic_raw (no NTP) */
615 SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW,
616};
617
618/* channel positions */
619enum {
620 SNDRV_CHMAP_UNKNOWN = 0,
621 SNDRV_CHMAP_NA, /* N/A, silent */
622 SNDRV_CHMAP_MONO, /* mono stream */
623 /* this follows the alsa-lib mixer channel value + 3 */
624 SNDRV_CHMAP_FL, /* front left */
625 SNDRV_CHMAP_FR, /* front right */
626 SNDRV_CHMAP_RL, /* rear left */
627 SNDRV_CHMAP_RR, /* rear right */
628 SNDRV_CHMAP_FC, /* front center */
629 SNDRV_CHMAP_LFE, /* LFE */
630 SNDRV_CHMAP_SL, /* side left */
631 SNDRV_CHMAP_SR, /* side right */
632 SNDRV_CHMAP_RC, /* rear center */
633 /* new definitions */
634 SNDRV_CHMAP_FLC, /* front left center */
635 SNDRV_CHMAP_FRC, /* front right center */
636 SNDRV_CHMAP_RLC, /* rear left center */
637 SNDRV_CHMAP_RRC, /* rear right center */
638 SNDRV_CHMAP_FLW, /* front left wide */
639 SNDRV_CHMAP_FRW, /* front right wide */
640 SNDRV_CHMAP_FLH, /* front left high */
641 SNDRV_CHMAP_FCH, /* front center high */
642 SNDRV_CHMAP_FRH, /* front right high */
643 SNDRV_CHMAP_TC, /* top center */
644 SNDRV_CHMAP_TFL, /* top front left */
645 SNDRV_CHMAP_TFR, /* top front right */
646 SNDRV_CHMAP_TFC, /* top front center */
647 SNDRV_CHMAP_TRL, /* top rear left */
648 SNDRV_CHMAP_TRR, /* top rear right */
649 SNDRV_CHMAP_TRC, /* top rear center */
650 /* new definitions for UAC2 */
651 SNDRV_CHMAP_TFLC, /* top front left center */
652 SNDRV_CHMAP_TFRC, /* top front right center */
653 SNDRV_CHMAP_TSL, /* top side left */
654 SNDRV_CHMAP_TSR, /* top side right */
655 SNDRV_CHMAP_LLFE, /* left LFE */
656 SNDRV_CHMAP_RLFE, /* right LFE */
657 SNDRV_CHMAP_BC, /* bottom center */
658 SNDRV_CHMAP_BLC, /* bottom left center */
659 SNDRV_CHMAP_BRC, /* bottom right center */
660 SNDRV_CHMAP_LAST = SNDRV_CHMAP_BRC,
661};
662
663#define SNDRV_CHMAP_POSITION_MASK 0xffff
664#define SNDRV_CHMAP_PHASE_INVERSE (0x01 << 16)
665#define SNDRV_CHMAP_DRIVER_SPEC (0x02 << 16)
666
667#define SNDRV_PCM_IOCTL_PVERSION _IOR('A', 0x00, int)
668#define SNDRV_PCM_IOCTL_INFO _IOR('A', 0x01, struct snd_pcm_info)
669#define SNDRV_PCM_IOCTL_TSTAMP _IOW('A', 0x02, int)
670#define SNDRV_PCM_IOCTL_TTSTAMP _IOW('A', 0x03, int)
671#define SNDRV_PCM_IOCTL_USER_PVERSION _IOW('A', 0x04, int)
672#define SNDRV_PCM_IOCTL_HW_REFINE _IOWR('A', 0x10, struct snd_pcm_hw_params)
673#define SNDRV_PCM_IOCTL_HW_PARAMS _IOWR('A', 0x11, struct snd_pcm_hw_params)
674#define SNDRV_PCM_IOCTL_HW_FREE _IO('A', 0x12)
675#define SNDRV_PCM_IOCTL_SW_PARAMS _IOWR('A', 0x13, struct snd_pcm_sw_params)
676#define SNDRV_PCM_IOCTL_STATUS _IOR('A', 0x20, struct snd_pcm_status)
677#define SNDRV_PCM_IOCTL_DELAY _IOR('A', 0x21, snd_pcm_sframes_t)
678#define SNDRV_PCM_IOCTL_HWSYNC _IO('A', 0x22)
679#define __SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct __snd_pcm_sync_ptr)
680#define __SNDRV_PCM_IOCTL_SYNC_PTR64 _IOWR('A', 0x23, struct __snd_pcm_sync_ptr64)
681#define SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct snd_pcm_sync_ptr)
682#define SNDRV_PCM_IOCTL_STATUS_EXT _IOWR('A', 0x24, struct snd_pcm_status)
683#define SNDRV_PCM_IOCTL_CHANNEL_INFO _IOR('A', 0x32, struct snd_pcm_channel_info)
684#define SNDRV_PCM_IOCTL_PREPARE _IO('A', 0x40)
685#define SNDRV_PCM_IOCTL_RESET _IO('A', 0x41)
686#define SNDRV_PCM_IOCTL_START _IO('A', 0x42)
687#define SNDRV_PCM_IOCTL_DROP _IO('A', 0x43)
688#define SNDRV_PCM_IOCTL_DRAIN _IO('A', 0x44)
689#define SNDRV_PCM_IOCTL_PAUSE _IOW('A', 0x45, int)
690#define SNDRV_PCM_IOCTL_REWIND _IOW('A', 0x46, snd_pcm_uframes_t)
691#define SNDRV_PCM_IOCTL_RESUME _IO('A', 0x47)
692#define SNDRV_PCM_IOCTL_XRUN _IO('A', 0x48)
693#define SNDRV_PCM_IOCTL_FORWARD _IOW('A', 0x49, snd_pcm_uframes_t)
694#define SNDRV_PCM_IOCTL_WRITEI_FRAMES _IOW('A', 0x50, struct snd_xferi)
695#define SNDRV_PCM_IOCTL_READI_FRAMES _IOR('A', 0x51, struct snd_xferi)
696#define SNDRV_PCM_IOCTL_WRITEN_FRAMES _IOW('A', 0x52, struct snd_xfern)
697#define SNDRV_PCM_IOCTL_READN_FRAMES _IOR('A', 0x53, struct snd_xfern)
698#define SNDRV_PCM_IOCTL_LINK _IOW('A', 0x60, int)
699#define SNDRV_PCM_IOCTL_UNLINK _IO('A', 0x61)
700
701/*****************************************************************************
702 * *
703 * MIDI v1.0 interface *
704 * *
705 *****************************************************************************/
706
707/*
708 * Raw MIDI section - /dev/snd/midi??
709 */
710
711#define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 5)
712
713enum {
714 SNDRV_RAWMIDI_STREAM_OUTPUT = 0,
715 SNDRV_RAWMIDI_STREAM_INPUT,
716 SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT,
717};
718
719#define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001
720#define SNDRV_RAWMIDI_INFO_INPUT 0x00000002
721#define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004
722#define SNDRV_RAWMIDI_INFO_UMP 0x00000008
723#define SNDRV_RAWMIDI_INFO_STREAM_INACTIVE 0x00000010
724
725#define SNDRV_RAWMIDI_DEVICE_UNKNOWN 0
726
727struct snd_rawmidi_info {
728 unsigned int device; /* RO/WR (control): device number */
729 unsigned int subdevice; /* RO/WR (control): subdevice number */
730 int stream; /* WR: stream */
731 int card; /* R: card number */
732 unsigned int flags; /* SNDRV_RAWMIDI_INFO_XXXX */
733 unsigned char id[64]; /* ID (user selectable) */
734 unsigned char name[80]; /* name of device */
735 unsigned char subname[32]; /* name of active or selected subdevice */
736 unsigned int subdevices_count;
737 unsigned int subdevices_avail;
738 int tied_device; /* R: tied rawmidi device (UMP/legacy) */
739 unsigned char reserved[60]; /* 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} __attribute__((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
776struct snd_rawmidi_status {
777 int stream;
778 __time_pad pad1;
779 struct timespec tstamp; /* Timestamp */
780 size_t avail; /* available bytes */
781 size_t xruns; /* count of overruns since last status (in bytes) */
782 unsigned char reserved[16]; /* reserved for future use */
783};
784
785/* UMP EP info flags */
786#define SNDRV_UMP_EP_INFO_STATIC_BLOCKS 0x01
787
788/* UMP EP Protocol / JRTS capability bits */
789#define SNDRV_UMP_EP_INFO_PROTO_MIDI_MASK 0x0300
790#define SNDRV_UMP_EP_INFO_PROTO_MIDI1 0x0100 /* MIDI 1.0 */
791#define SNDRV_UMP_EP_INFO_PROTO_MIDI2 0x0200 /* MIDI 2.0 */
792#define SNDRV_UMP_EP_INFO_PROTO_JRTS_MASK 0x0003
793#define SNDRV_UMP_EP_INFO_PROTO_JRTS_TX 0x0001 /* JRTS Transmit */
794#define SNDRV_UMP_EP_INFO_PROTO_JRTS_RX 0x0002 /* JRTS Receive */
795
796/* UMP Endpoint information */
797struct snd_ump_endpoint_info {
798 int card; /* card number */
799 int device; /* device number */
800 unsigned int flags; /* additional info */
801 unsigned int protocol_caps; /* protocol capabilities */
802 unsigned int protocol; /* current protocol */
803 unsigned int num_blocks; /* # of function blocks */
804 unsigned short version; /* UMP major/minor version */
805 unsigned short family_id; /* MIDI device family ID */
806 unsigned short model_id; /* MIDI family model ID */
807 unsigned int manufacturer_id; /* MIDI manufacturer ID */
808 unsigned char sw_revision[4]; /* software revision */
809 unsigned short padding;
810 unsigned char name[128]; /* endpoint name string */
811 unsigned char product_id[128]; /* unique product id string */
812 unsigned char reserved[32];
813} __attribute__((packed));
814
815/* UMP direction */
816#define SNDRV_UMP_DIR_INPUT 0x01
817#define SNDRV_UMP_DIR_OUTPUT 0x02
818#define SNDRV_UMP_DIR_BIDIRECTION 0x03
819
820/* UMP block info flags */
821#define SNDRV_UMP_BLOCK_IS_MIDI1 (1U << 0) /* MIDI 1.0 port w/o restrict */
822#define SNDRV_UMP_BLOCK_IS_LOWSPEED (1U << 1) /* 31.25Kbps B/W MIDI1 port */
823
824/* UMP block user-interface hint */
825#define SNDRV_UMP_BLOCK_UI_HINT_UNKNOWN 0x00
826#define SNDRV_UMP_BLOCK_UI_HINT_RECEIVER 0x01
827#define SNDRV_UMP_BLOCK_UI_HINT_SENDER 0x02
828#define SNDRV_UMP_BLOCK_UI_HINT_BOTH 0x03
829
830/* UMP groups and blocks */
831#define SNDRV_UMP_MAX_GROUPS 16
832#define SNDRV_UMP_MAX_BLOCKS 32
833
834/* UMP Block information */
835struct snd_ump_block_info {
836 int card; /* card number */
837 int device; /* device number */
838 unsigned char block_id; /* block ID (R/W) */
839 unsigned char direction; /* UMP direction */
840 unsigned char active; /* Activeness */
841 unsigned char first_group; /* first group ID */
842 unsigned char num_groups; /* number of groups */
843 unsigned char midi_ci_version; /* MIDI-CI support version */
844 unsigned char sysex8_streams; /* max number of sysex8 streams */
845 unsigned char ui_hint; /* user interface hint */
846 unsigned int flags; /* various info flags */
847 unsigned char name[128]; /* block name string */
848 unsigned char reserved[32];
849} __attribute__((packed));
850
851#define SNDRV_RAWMIDI_IOCTL_PVERSION _IOR('W', 0x00, int)
852#define SNDRV_RAWMIDI_IOCTL_INFO _IOR('W', 0x01, struct snd_rawmidi_info)
853#define SNDRV_RAWMIDI_IOCTL_USER_PVERSION _IOW('W', 0x02, int)
854#define SNDRV_RAWMIDI_IOCTL_PARAMS _IOWR('W', 0x10, struct snd_rawmidi_params)
855#define SNDRV_RAWMIDI_IOCTL_STATUS _IOWR('W', 0x20, struct snd_rawmidi_status)
856#define SNDRV_RAWMIDI_IOCTL_DROP _IOW('W', 0x30, int)
857#define SNDRV_RAWMIDI_IOCTL_DRAIN _IOW('W', 0x31, int)
858/* Additional ioctls for UMP rawmidi devices */
859#define SNDRV_UMP_IOCTL_ENDPOINT_INFO _IOR('W', 0x40, struct snd_ump_endpoint_info)
860#define SNDRV_UMP_IOCTL_BLOCK_INFO _IOR('W', 0x41, struct snd_ump_block_info)
861
862/*
863 * Timer section - /dev/snd/timer
864 */
865
866#define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 8)
867
868enum {
869 SNDRV_TIMER_CLASS_NONE = -1,
870 SNDRV_TIMER_CLASS_SLAVE = 0,
871 SNDRV_TIMER_CLASS_GLOBAL,
872 SNDRV_TIMER_CLASS_CARD,
873 SNDRV_TIMER_CLASS_PCM,
874 SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM,
875};
876
877/* slave timer classes */
878enum {
879 SNDRV_TIMER_SCLASS_NONE = 0,
880 SNDRV_TIMER_SCLASS_APPLICATION,
881 SNDRV_TIMER_SCLASS_SEQUENCER, /* alias */
882 SNDRV_TIMER_SCLASS_OSS_SEQUENCER, /* alias */
883 SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER,
884};
885
886/* global timers (device member) */
887#define SNDRV_TIMER_GLOBAL_SYSTEM 0
888#define SNDRV_TIMER_GLOBAL_RTC 1 /* unused */
889#define SNDRV_TIMER_GLOBAL_HPET 2
890#define SNDRV_TIMER_GLOBAL_HRTIMER 3
891#define SNDRV_TIMER_GLOBAL_UDRIVEN 4
892
893/* info flags */
894#define SNDRV_TIMER_FLG_SLAVE (1<<0) /* cannot be controlled */
895
896struct snd_timer_id {
897 int dev_class;
898 int dev_sclass;
899 int card;
900 int device;
901 int subdevice;
902};
903
904struct snd_timer_ginfo {
905 struct snd_timer_id tid; /* requested timer ID */
906 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */
907 int card; /* card number */
908 unsigned char id[64]; /* timer identification */
909 unsigned char name[80]; /* timer name */
910 unsigned long reserved0; /* reserved for future use */
911 unsigned long resolution; /* average period resolution in ns */
912 unsigned long resolution_min; /* minimal period resolution in ns */
913 unsigned long resolution_max; /* maximal period resolution in ns */
914 unsigned int clients; /* active timer clients */
915 unsigned char reserved[32];
916};
917
918struct snd_timer_gparams {
919 struct snd_timer_id tid; /* requested timer ID */
920 unsigned long period_num; /* requested precise period duration (in seconds) - numerator */
921 unsigned long period_den; /* requested precise period duration (in seconds) - denominator */
922 unsigned char reserved[32];
923};
924
925struct snd_timer_gstatus {
926 struct snd_timer_id tid; /* requested timer ID */
927 unsigned long resolution; /* current period resolution in ns */
928 unsigned long resolution_num; /* precise current period resolution (in seconds) - numerator */
929 unsigned long resolution_den; /* precise current period resolution (in seconds) - denominator */
930 unsigned char reserved[32];
931};
932
933struct snd_timer_select {
934 struct snd_timer_id id; /* bind to timer ID */
935 unsigned char reserved[32]; /* reserved */
936};
937
938struct snd_timer_info {
939 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */
940 int card; /* card number */
941 unsigned char id[64]; /* timer identificator */
942 unsigned char name[80]; /* timer name */
943 unsigned long reserved0; /* reserved for future use */
944 unsigned long resolution; /* average period resolution in ns */
945 unsigned char reserved[64]; /* reserved */
946};
947
948#define SNDRV_TIMER_PSFLG_AUTO (1<<0) /* auto start, otherwise one-shot */
949#define SNDRV_TIMER_PSFLG_EXCLUSIVE (1<<1) /* exclusive use, precise start/stop/pause/continue */
950#define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2) /* write early event to the poll queue */
951
952struct snd_timer_params {
953 unsigned int flags; /* flags - SNDRV_TIMER_PSFLG_* */
954 unsigned int ticks; /* requested resolution in ticks */
955 unsigned int queue_size; /* total size of queue (32-1024) */
956 unsigned int reserved0; /* reserved, was: failure locations */
957 unsigned int filter; /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */
958 unsigned char reserved[60]; /* reserved */
959};
960
961struct snd_timer_status {
962 struct timespec tstamp; /* Timestamp - last update */
963 unsigned int resolution; /* current period resolution in ns */
964 unsigned int lost; /* counter of master tick lost */
965 unsigned int overrun; /* count of read queue overruns */
966 unsigned int queue; /* used queue size */
967 unsigned char reserved[64]; /* reserved */
968};
969
970/*
971 * This structure describes the userspace-driven timer. Such timers are purely virtual,
972 * and can only be triggered from software (for instance, by userspace application).
973 */
974struct snd_timer_uinfo {
975 /* To pretend being a normal timer, we need to know the resolution in ns. */
976 __u64 resolution;
977 int fd;
978 unsigned int id;
979 unsigned char reserved[16];
980};
981
982#define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int)
983#define SNDRV_TIMER_IOCTL_NEXT_DEVICE _IOWR('T', 0x01, struct snd_timer_id)
984#define SNDRV_TIMER_IOCTL_TREAD_OLD _IOW('T', 0x02, int)
985#define SNDRV_TIMER_IOCTL_GINFO _IOWR('T', 0x03, struct snd_timer_ginfo)
986#define SNDRV_TIMER_IOCTL_GPARAMS _IOW('T', 0x04, struct snd_timer_gparams)
987#define SNDRV_TIMER_IOCTL_GSTATUS _IOWR('T', 0x05, struct snd_timer_gstatus)
988#define SNDRV_TIMER_IOCTL_SELECT _IOW('T', 0x10, struct snd_timer_select)
989#define SNDRV_TIMER_IOCTL_INFO _IOR('T', 0x11, struct snd_timer_info)
990#define SNDRV_TIMER_IOCTL_PARAMS _IOW('T', 0x12, struct snd_timer_params)
991#define SNDRV_TIMER_IOCTL_STATUS _IOR('T', 0x14, struct snd_timer_status)
992/* The following four ioctls are changed since 1.0.9 due to confliction */
993#define SNDRV_TIMER_IOCTL_START _IO('T', 0xa0)
994#define SNDRV_TIMER_IOCTL_STOP _IO('T', 0xa1)
995#define SNDRV_TIMER_IOCTL_CONTINUE _IO('T', 0xa2)
996#define SNDRV_TIMER_IOCTL_PAUSE _IO('T', 0xa3)
997#define SNDRV_TIMER_IOCTL_TREAD64 _IOW('T', 0xa4, int)
998#define SNDRV_TIMER_IOCTL_CREATE _IOWR('T', 0xa5, struct snd_timer_uinfo)
999#define SNDRV_TIMER_IOCTL_TRIGGER _IO('T', 0xa6)
1000
1001#if __BITS_PER_LONG == 64
1002#define SNDRV_TIMER_IOCTL_TREAD SNDRV_TIMER_IOCTL_TREAD_OLD
1003#else
1004#define SNDRV_TIMER_IOCTL_TREAD ((sizeof(__kernel_long_t) >= sizeof(time_t)) ? \
1005 SNDRV_TIMER_IOCTL_TREAD_OLD : \
1006 SNDRV_TIMER_IOCTL_TREAD64)
1007#endif
1008
1009struct snd_timer_read {
1010 unsigned int resolution;
1011 unsigned int ticks;
1012};
1013
1014enum {
1015 SNDRV_TIMER_EVENT_RESOLUTION = 0, /* val = resolution in ns */
1016 SNDRV_TIMER_EVENT_TICK, /* val = ticks */
1017 SNDRV_TIMER_EVENT_START, /* val = resolution in ns */
1018 SNDRV_TIMER_EVENT_STOP, /* val = 0 */
1019 SNDRV_TIMER_EVENT_CONTINUE, /* val = resolution in ns */
1020 SNDRV_TIMER_EVENT_PAUSE, /* val = 0 */
1021 SNDRV_TIMER_EVENT_EARLY, /* val = 0, early event */
1022 SNDRV_TIMER_EVENT_SUSPEND, /* val = 0 */
1023 SNDRV_TIMER_EVENT_RESUME, /* val = resolution in ns */
1024 /* master timer events for slave timer instances */
1025 SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10,
1026 SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10,
1027 SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10,
1028 SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10,
1029 SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10,
1030 SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10,
1031};
1032
1033struct snd_timer_tread {
1034 int event;
1035 __time_pad pad1;
1036 struct timespec tstamp;
1037 unsigned int val;
1038 __time_pad pad2;
1039};
1040
1041/****************************************************************************
1042 * *
1043 * Section for driver control interface - /dev/snd/control? *
1044 * *
1045 ****************************************************************************/
1046
1047#define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 9)
1048
1049struct snd_ctl_card_info {
1050 int card; /* card number */
1051 int pad; /* reserved for future (was type) */
1052 unsigned char id[16]; /* ID of card (user selectable) */
1053 unsigned char driver[16]; /* Driver name */
1054 unsigned char name[32]; /* Short name of soundcard */
1055 unsigned char longname[80]; /* name + info text about soundcard */
1056 unsigned char reserved_[16]; /* reserved for future (was ID of mixer) */
1057 unsigned char mixername[80]; /* visual mixer identification */
1058 unsigned char components[128]; /* card components / fine identification, delimited with one space (AC97 etc..) */
1059};
1060
1061typedef int __bitwise snd_ctl_elem_type_t;
1062#define SNDRV_CTL_ELEM_TYPE_NONE ((snd_ctl_elem_type_t) 0) /* invalid */
1063#define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((snd_ctl_elem_type_t) 1) /* boolean type */
1064#define SNDRV_CTL_ELEM_TYPE_INTEGER ((snd_ctl_elem_type_t) 2) /* integer type */
1065#define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((snd_ctl_elem_type_t) 3) /* enumerated type */
1066#define SNDRV_CTL_ELEM_TYPE_BYTES ((snd_ctl_elem_type_t) 4) /* byte array */
1067#define SNDRV_CTL_ELEM_TYPE_IEC958 ((snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */
1068#define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((snd_ctl_elem_type_t) 6) /* 64-bit integer type */
1069#define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64
1070
1071typedef int __bitwise snd_ctl_elem_iface_t;
1072#define SNDRV_CTL_ELEM_IFACE_CARD ((snd_ctl_elem_iface_t) 0) /* global control */
1073#define SNDRV_CTL_ELEM_IFACE_HWDEP ((snd_ctl_elem_iface_t) 1) /* hardware dependent device */
1074#define SNDRV_CTL_ELEM_IFACE_MIXER ((snd_ctl_elem_iface_t) 2) /* virtual mixer device */
1075#define SNDRV_CTL_ELEM_IFACE_PCM ((snd_ctl_elem_iface_t) 3) /* PCM device */
1076#define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((snd_ctl_elem_iface_t) 4) /* RawMidi device */
1077#define SNDRV_CTL_ELEM_IFACE_TIMER ((snd_ctl_elem_iface_t) 5) /* timer device */
1078#define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((snd_ctl_elem_iface_t) 6) /* sequencer client */
1079#define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER
1080
1081#define SNDRV_CTL_ELEM_ACCESS_READ (1<<0)
1082#define SNDRV_CTL_ELEM_ACCESS_WRITE (1<<1)
1083#define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE)
1084#define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1<<2) /* control value may be changed without a notification */
1085/* (1 << 3) is unused. */
1086#define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1<<4) /* TLV read is possible */
1087#define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1<<5) /* TLV write is possible */
1088#define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE)
1089#define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1<<6) /* TLV command is possible */
1090#define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) /* control does actually nothing, but may be updated */
1091#define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) /* write lock */
1092#define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) /* write lock owner */
1093#define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1<<28) /* kernel use a TLV callback */
1094#define SNDRV_CTL_ELEM_ACCESS_USER (1<<29) /* user space element */
1095/* bits 30 and 31 are obsoleted (for indirect access) */
1096
1097/* for further details see the ACPI and PCI power management specification */
1098#define SNDRV_CTL_POWER_D0 0x0000 /* full On */
1099#define SNDRV_CTL_POWER_D1 0x0100 /* partial On */
1100#define SNDRV_CTL_POWER_D2 0x0200 /* partial On */
1101#define SNDRV_CTL_POWER_D3 0x0300 /* Off */
1102#define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) /* Off, with power */
1103#define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) /* Off, without power */
1104
1105#define SNDRV_CTL_ELEM_ID_NAME_MAXLEN 44
1106
1107struct snd_ctl_elem_id {
1108 unsigned int numid; /* numeric identifier, zero = invalid */
1109 snd_ctl_elem_iface_t iface; /* interface identifier */
1110 unsigned int device; /* device/client number */
1111 unsigned int subdevice; /* subdevice (substream) number */
1112 unsigned char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* ASCII name of item */
1113 unsigned int index; /* index of item */
1114};
1115
1116struct snd_ctl_elem_list {
1117 unsigned int offset; /* W: first element ID to get */
1118 unsigned int space; /* W: count of element IDs to get */
1119 unsigned int used; /* R: count of element IDs set */
1120 unsigned int count; /* R: count of all elements */
1121 struct snd_ctl_elem_id *pids; /* R: IDs */
1122 unsigned char reserved[50];
1123};
1124
1125struct snd_ctl_elem_info {
1126 struct snd_ctl_elem_id id; /* W: element ID */
1127 snd_ctl_elem_type_t type; /* R: value type - SNDRV_CTL_ELEM_TYPE_* */
1128 unsigned int access; /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */
1129 unsigned int count; /* count of values */
1130 __kernel_pid_t owner; /* owner's PID of this control */
1131 union {
1132 struct {
1133 long min; /* R: minimum value */
1134 long max; /* R: maximum value */
1135 long step; /* R: step (0 variable) */
1136 } integer;
1137 struct {
1138 long long min; /* R: minimum value */
1139 long long max; /* R: maximum value */
1140 long long step; /* R: step (0 variable) */
1141 } integer64;
1142 struct {
1143 unsigned int items; /* R: number of items */
1144 unsigned int item; /* W: item number */
1145 char name[64]; /* R: value name */
1146 __u64 names_ptr; /* W: names list (ELEM_ADD only) */
1147 unsigned int names_length;
1148 } enumerated;
1149 unsigned char reserved[128];
1150 } value;
1151 unsigned char reserved[64];
1152};
1153
1154struct snd_ctl_elem_value {
1155 struct snd_ctl_elem_id id; /* W: element ID */
1156 unsigned int indirect: 1; /* W: indirect access - obsoleted */
1157 union {
1158 union {
1159 long value[128];
1160 long *value_ptr; /* obsoleted */
1161 } integer;
1162 union {
1163 long long value[64];
1164 long long *value_ptr; /* obsoleted */
1165 } integer64;
1166 union {
1167 unsigned int item[128];
1168 unsigned int *item_ptr; /* obsoleted */
1169 } enumerated;
1170 union {
1171 unsigned char data[512];
1172 unsigned char *data_ptr; /* obsoleted */
1173 } bytes;
1174 struct snd_aes_iec958 iec958;
1175 } value; /* RO */
1176 unsigned char reserved[128];
1177};
1178
1179struct snd_ctl_tlv {
1180 unsigned int numid; /* control element numeric identification */
1181 unsigned int length; /* in bytes aligned to 4 */
1182 unsigned int tlv[]; /* first TLV */
1183};
1184
1185#define SNDRV_CTL_IOCTL_PVERSION _IOR('U', 0x00, int)
1186#define SNDRV_CTL_IOCTL_CARD_INFO _IOR('U', 0x01, struct snd_ctl_card_info)
1187#define SNDRV_CTL_IOCTL_ELEM_LIST _IOWR('U', 0x10, struct snd_ctl_elem_list)
1188#define SNDRV_CTL_IOCTL_ELEM_INFO _IOWR('U', 0x11, struct snd_ctl_elem_info)
1189#define SNDRV_CTL_IOCTL_ELEM_READ _IOWR('U', 0x12, struct snd_ctl_elem_value)
1190#define SNDRV_CTL_IOCTL_ELEM_WRITE _IOWR('U', 0x13, struct snd_ctl_elem_value)
1191#define SNDRV_CTL_IOCTL_ELEM_LOCK _IOW('U', 0x14, struct snd_ctl_elem_id)
1192#define SNDRV_CTL_IOCTL_ELEM_UNLOCK _IOW('U', 0x15, struct snd_ctl_elem_id)
1193#define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int)
1194#define SNDRV_CTL_IOCTL_ELEM_ADD _IOWR('U', 0x17, struct snd_ctl_elem_info)
1195#define SNDRV_CTL_IOCTL_ELEM_REPLACE _IOWR('U', 0x18, struct snd_ctl_elem_info)
1196#define SNDRV_CTL_IOCTL_ELEM_REMOVE _IOWR('U', 0x19, struct snd_ctl_elem_id)
1197#define SNDRV_CTL_IOCTL_TLV_READ _IOWR('U', 0x1a, struct snd_ctl_tlv)
1198#define SNDRV_CTL_IOCTL_TLV_WRITE _IOWR('U', 0x1b, struct snd_ctl_tlv)
1199#define SNDRV_CTL_IOCTL_TLV_COMMAND _IOWR('U', 0x1c, struct snd_ctl_tlv)
1200#define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int)
1201#define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info)
1202#define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int)
1203#define SNDRV_CTL_IOCTL_PCM_INFO _IOWR('U', 0x31, struct snd_pcm_info)
1204#define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int)
1205#define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int)
1206#define SNDRV_CTL_IOCTL_RAWMIDI_INFO _IOWR('U', 0x41, struct snd_rawmidi_info)
1207#define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int)
1208#define SNDRV_CTL_IOCTL_UMP_NEXT_DEVICE _IOWR('U', 0x43, int)
1209#define SNDRV_CTL_IOCTL_UMP_ENDPOINT_INFO _IOWR('U', 0x44, struct snd_ump_endpoint_info)
1210#define SNDRV_CTL_IOCTL_UMP_BLOCK_INFO _IOWR('U', 0x45, struct snd_ump_block_info)
1211#define SNDRV_CTL_IOCTL_POWER _IOWR('U', 0xd0, int)
1212#define SNDRV_CTL_IOCTL_POWER_STATE _IOR('U', 0xd1, int)
1213
1214/*
1215 * Read interface.
1216 */
1217
1218enum sndrv_ctl_event_type {
1219 SNDRV_CTL_EVENT_ELEM = 0,
1220 SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM,
1221};
1222
1223#define SNDRV_CTL_EVENT_MASK_VALUE (1<<0) /* element value was changed */
1224#define SNDRV_CTL_EVENT_MASK_INFO (1<<1) /* element info was changed */
1225#define SNDRV_CTL_EVENT_MASK_ADD (1<<2) /* element was added */
1226#define SNDRV_CTL_EVENT_MASK_TLV (1<<3) /* element TLV tree was changed */
1227#define SNDRV_CTL_EVENT_MASK_REMOVE (~0U) /* element was removed */
1228
1229struct snd_ctl_event {
1230 int type; /* event type - SNDRV_CTL_EVENT_* */
1231 union {
1232 struct {
1233 unsigned int mask;
1234 struct snd_ctl_elem_id id;
1235 } elem;
1236 unsigned char data8[60];
1237 } data;
1238};
1239
1240/*
1241 * Control names
1242 */
1243
1244#define SNDRV_CTL_NAME_NONE ""
1245#define SNDRV_CTL_NAME_PLAYBACK "Playback "
1246#define SNDRV_CTL_NAME_CAPTURE "Capture "
1247
1248#define SNDRV_CTL_NAME_IEC958_NONE ""
1249#define SNDRV_CTL_NAME_IEC958_SWITCH "Switch"
1250#define SNDRV_CTL_NAME_IEC958_VOLUME "Volume"
1251#define SNDRV_CTL_NAME_IEC958_DEFAULT "Default"
1252#define SNDRV_CTL_NAME_IEC958_MASK "Mask"
1253#define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask"
1254#define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask"
1255#define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream"
1256#define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what
1257
1258#endif /* __SOUND_ASOUND_H */