tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1/*
2 * Advanced Linux Sound Architecture - ALSA - Driver
3 * Copyright (c) 1994-2003 by Jaroslav Kysela <perex@perex.cz>,
4 * Abramo Bagnara <abramo@alsa-project.org>
5 *
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 */
22
23#ifndef _UAPI__SOUND_ASOUND_H
24#define _UAPI__SOUND_ASOUND_H
25
26#include <linux/types.h>
27
28
29/*
30 * protocol version
31 */
32
33#define SNDRV_PROTOCOL_VERSION(major, minor, subminor) (((major)<<16)|((minor)<<8)|(subminor))
34#define SNDRV_PROTOCOL_MAJOR(version) (((version)>>16)&0xffff)
35#define SNDRV_PROTOCOL_MINOR(version) (((version)>>8)&0xff)
36#define SNDRV_PROTOCOL_MICRO(version) ((version)&0xff)
37#define SNDRV_PROTOCOL_INCOMPATIBLE(kversion, uversion) \
38 (SNDRV_PROTOCOL_MAJOR(kversion) != SNDRV_PROTOCOL_MAJOR(uversion) || \
39 (SNDRV_PROTOCOL_MAJOR(kversion) == SNDRV_PROTOCOL_MAJOR(uversion) && \
40 SNDRV_PROTOCOL_MINOR(kversion) != SNDRV_PROTOCOL_MINOR(uversion)))
41
42/****************************************************************************
43 * *
44 * Digital audio interface *
45 * *
46 ****************************************************************************/
47
48struct snd_aes_iec958 {
49 unsigned char status[24]; /* AES/IEC958 channel status bits */
50 unsigned char subcode[147]; /* AES/IEC958 subcode bits */
51 unsigned char pad; /* nothing */
52 unsigned char dig_subframe[4]; /* AES/IEC958 subframe bits */
53};
54
55/****************************************************************************
56 * *
57 * CEA-861 Audio InfoFrame. Used in HDMI and DisplayPort *
58 * *
59 ****************************************************************************/
60
61struct snd_cea_861_aud_if {
62 unsigned char db1_ct_cc; /* coding type and channel count */
63 unsigned char db2_sf_ss; /* sample frequency and size */
64 unsigned char db3; /* not used, all zeros */
65 unsigned char db4_ca; /* channel allocation code */
66 unsigned char db5_dminh_lsv; /* downmix inhibit & level-shit values */
67};
68
69/****************************************************************************
70 * *
71 * Section for driver hardware dependent interface - /dev/snd/hw? *
72 * *
73 ****************************************************************************/
74
75#define SNDRV_HWDEP_VERSION SNDRV_PROTOCOL_VERSION(1, 0, 1)
76
77enum {
78 SNDRV_HWDEP_IFACE_OPL2 = 0,
79 SNDRV_HWDEP_IFACE_OPL3,
80 SNDRV_HWDEP_IFACE_OPL4,
81 SNDRV_HWDEP_IFACE_SB16CSP, /* Creative Signal Processor */
82 SNDRV_HWDEP_IFACE_EMU10K1, /* FX8010 processor in EMU10K1 chip */
83 SNDRV_HWDEP_IFACE_YSS225, /* Yamaha FX processor */
84 SNDRV_HWDEP_IFACE_ICS2115, /* Wavetable synth */
85 SNDRV_HWDEP_IFACE_SSCAPE, /* Ensoniq SoundScape ISA card (MC68EC000) */
86 SNDRV_HWDEP_IFACE_VX, /* Digigram VX cards */
87 SNDRV_HWDEP_IFACE_MIXART, /* Digigram miXart cards */
88 SNDRV_HWDEP_IFACE_USX2Y, /* Tascam US122, US224 & US428 usb */
89 SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */
90 SNDRV_HWDEP_IFACE_BLUETOOTH, /* Bluetooth audio */
91 SNDRV_HWDEP_IFACE_USX2Y_PCM, /* Tascam US122, US224 & US428 rawusb pcm */
92 SNDRV_HWDEP_IFACE_PCXHR, /* Digigram PCXHR */
93 SNDRV_HWDEP_IFACE_SB_RC, /* SB Extigy/Audigy2NX remote control */
94 SNDRV_HWDEP_IFACE_HDA, /* HD-audio */
95 SNDRV_HWDEP_IFACE_USB_STREAM, /* direct access to usb stream */
96
97 /* Don't forget to change the following: */
98 SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_USB_STREAM
99};
100
101struct snd_hwdep_info {
102 unsigned int device; /* WR: device number */
103 int card; /* R: card number */
104 unsigned char id[64]; /* ID (user selectable) */
105 unsigned char name[80]; /* hwdep name */
106 int iface; /* hwdep interface */
107 unsigned char reserved[64]; /* reserved for future */
108};
109
110/* generic DSP loader */
111struct snd_hwdep_dsp_status {
112 unsigned int version; /* R: driver-specific version */
113 unsigned char id[32]; /* R: driver-specific ID string */
114 unsigned int num_dsps; /* R: number of DSP images to transfer */
115 unsigned int dsp_loaded; /* R: bit flags indicating the loaded DSPs */
116 unsigned int chip_ready; /* R: 1 = initialization finished */
117 unsigned char reserved[16]; /* reserved for future use */
118};
119
120struct snd_hwdep_dsp_image {
121 unsigned int index; /* W: DSP index */
122 unsigned char name[64]; /* W: ID (e.g. file name) */
123 unsigned char __user *image; /* W: binary image */
124 size_t length; /* W: size of image in bytes */
125 unsigned long driver_data; /* W: driver-specific data */
126};
127
128#define SNDRV_HWDEP_IOCTL_PVERSION _IOR ('H', 0x00, int)
129#define SNDRV_HWDEP_IOCTL_INFO _IOR ('H', 0x01, struct snd_hwdep_info)
130#define SNDRV_HWDEP_IOCTL_DSP_STATUS _IOR('H', 0x02, struct snd_hwdep_dsp_status)
131#define SNDRV_HWDEP_IOCTL_DSP_LOAD _IOW('H', 0x03, struct snd_hwdep_dsp_image)
132
133/*****************************************************************************
134 * *
135 * Digital Audio (PCM) interface - /dev/snd/pcm?? *
136 * *
137 *****************************************************************************/
138
139#define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 11)
140
141typedef unsigned long snd_pcm_uframes_t;
142typedef signed long snd_pcm_sframes_t;
143
144enum {
145 SNDRV_PCM_CLASS_GENERIC = 0, /* standard mono or stereo device */
146 SNDRV_PCM_CLASS_MULTI, /* multichannel device */
147 SNDRV_PCM_CLASS_MODEM, /* software modem class */
148 SNDRV_PCM_CLASS_DIGITIZER, /* digitizer class */
149 /* Don't forget to change the following: */
150 SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER,
151};
152
153enum {
154 SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, /* mono or stereo subdevices are mixed together */
155 SNDRV_PCM_SUBCLASS_MULTI_MIX, /* multichannel subdevices are mixed together */
156 /* Don't forget to change the following: */
157 SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX,
158};
159
160enum {
161 SNDRV_PCM_STREAM_PLAYBACK = 0,
162 SNDRV_PCM_STREAM_CAPTURE,
163 SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE,
164};
165
166typedef int __bitwise snd_pcm_access_t;
167#define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED ((__force snd_pcm_access_t) 0) /* interleaved mmap */
168#define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED ((__force snd_pcm_access_t) 1) /* noninterleaved mmap */
169#define SNDRV_PCM_ACCESS_MMAP_COMPLEX ((__force snd_pcm_access_t) 2) /* complex mmap */
170#define SNDRV_PCM_ACCESS_RW_INTERLEAVED ((__force snd_pcm_access_t) 3) /* readi/writei */
171#define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED ((__force snd_pcm_access_t) 4) /* readn/writen */
172#define SNDRV_PCM_ACCESS_LAST SNDRV_PCM_ACCESS_RW_NONINTERLEAVED
173
174typedef int __bitwise snd_pcm_format_t;
175#define SNDRV_PCM_FORMAT_S8 ((__force snd_pcm_format_t) 0)
176#define SNDRV_PCM_FORMAT_U8 ((__force snd_pcm_format_t) 1)
177#define SNDRV_PCM_FORMAT_S16_LE ((__force snd_pcm_format_t) 2)
178#define SNDRV_PCM_FORMAT_S16_BE ((__force snd_pcm_format_t) 3)
179#define SNDRV_PCM_FORMAT_U16_LE ((__force snd_pcm_format_t) 4)
180#define SNDRV_PCM_FORMAT_U16_BE ((__force snd_pcm_format_t) 5)
181#define SNDRV_PCM_FORMAT_S24_LE ((__force snd_pcm_format_t) 6) /* low three bytes */
182#define SNDRV_PCM_FORMAT_S24_BE ((__force snd_pcm_format_t) 7) /* low three bytes */
183#define SNDRV_PCM_FORMAT_U24_LE ((__force snd_pcm_format_t) 8) /* low three bytes */
184#define SNDRV_PCM_FORMAT_U24_BE ((__force snd_pcm_format_t) 9) /* low three bytes */
185#define SNDRV_PCM_FORMAT_S32_LE ((__force snd_pcm_format_t) 10)
186#define SNDRV_PCM_FORMAT_S32_BE ((__force snd_pcm_format_t) 11)
187#define SNDRV_PCM_FORMAT_U32_LE ((__force snd_pcm_format_t) 12)
188#define SNDRV_PCM_FORMAT_U32_BE ((__force snd_pcm_format_t) 13)
189#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 */
190#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 */
191#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 */
192#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 */
193#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((__force snd_pcm_format_t) 18) /* IEC-958 subframe, Little Endian */
194#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((__force snd_pcm_format_t) 19) /* IEC-958 subframe, Big Endian */
195#define SNDRV_PCM_FORMAT_MU_LAW ((__force snd_pcm_format_t) 20)
196#define SNDRV_PCM_FORMAT_A_LAW ((__force snd_pcm_format_t) 21)
197#define SNDRV_PCM_FORMAT_IMA_ADPCM ((__force snd_pcm_format_t) 22)
198#define SNDRV_PCM_FORMAT_MPEG ((__force snd_pcm_format_t) 23)
199#define SNDRV_PCM_FORMAT_GSM ((__force snd_pcm_format_t) 24)
200#define SNDRV_PCM_FORMAT_SPECIAL ((__force snd_pcm_format_t) 31)
201#define SNDRV_PCM_FORMAT_S24_3LE ((__force snd_pcm_format_t) 32) /* in three bytes */
202#define SNDRV_PCM_FORMAT_S24_3BE ((__force snd_pcm_format_t) 33) /* in three bytes */
203#define SNDRV_PCM_FORMAT_U24_3LE ((__force snd_pcm_format_t) 34) /* in three bytes */
204#define SNDRV_PCM_FORMAT_U24_3BE ((__force snd_pcm_format_t) 35) /* in three bytes */
205#define SNDRV_PCM_FORMAT_S20_3LE ((__force snd_pcm_format_t) 36) /* in three bytes */
206#define SNDRV_PCM_FORMAT_S20_3BE ((__force snd_pcm_format_t) 37) /* in three bytes */
207#define SNDRV_PCM_FORMAT_U20_3LE ((__force snd_pcm_format_t) 38) /* in three bytes */
208#define SNDRV_PCM_FORMAT_U20_3BE ((__force snd_pcm_format_t) 39) /* in three bytes */
209#define SNDRV_PCM_FORMAT_S18_3LE ((__force snd_pcm_format_t) 40) /* in three bytes */
210#define SNDRV_PCM_FORMAT_S18_3BE ((__force snd_pcm_format_t) 41) /* in three bytes */
211#define SNDRV_PCM_FORMAT_U18_3LE ((__force snd_pcm_format_t) 42) /* in three bytes */
212#define SNDRV_PCM_FORMAT_U18_3BE ((__force snd_pcm_format_t) 43) /* in three bytes */
213#define SNDRV_PCM_FORMAT_G723_24 ((__force snd_pcm_format_t) 44) /* 8 samples in 3 bytes */
214#define SNDRV_PCM_FORMAT_G723_24_1B ((__force snd_pcm_format_t) 45) /* 1 sample in 1 byte */
215#define SNDRV_PCM_FORMAT_G723_40 ((__force snd_pcm_format_t) 46) /* 8 Samples in 5 bytes */
216#define SNDRV_PCM_FORMAT_G723_40_1B ((__force snd_pcm_format_t) 47) /* 1 sample in 1 byte */
217#define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_G723_40_1B
218
219#ifdef SNDRV_LITTLE_ENDIAN
220#define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE
221#define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE
222#define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE
223#define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE
224#define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE
225#define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE
226#define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE
227#define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE
228#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE
229#endif
230#ifdef SNDRV_BIG_ENDIAN
231#define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE
232#define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE
233#define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE
234#define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE
235#define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE
236#define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE
237#define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE
238#define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE
239#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE
240#endif
241
242typedef int __bitwise snd_pcm_subformat_t;
243#define SNDRV_PCM_SUBFORMAT_STD ((__force snd_pcm_subformat_t) 0)
244#define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_STD
245
246#define SNDRV_PCM_INFO_MMAP 0x00000001 /* hardware supports mmap */
247#define SNDRV_PCM_INFO_MMAP_VALID 0x00000002 /* period data are valid during transfer */
248#define SNDRV_PCM_INFO_DOUBLE 0x00000004 /* Double buffering needed for PCM start/stop */
249#define SNDRV_PCM_INFO_BATCH 0x00000010 /* double buffering */
250#define SNDRV_PCM_INFO_INTERLEAVED 0x00000100 /* channels are interleaved */
251#define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200 /* channels are not interleaved */
252#define SNDRV_PCM_INFO_COMPLEX 0x00000400 /* complex frame organization (mmap only) */
253#define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000 /* hardware transfer block of samples */
254#define SNDRV_PCM_INFO_OVERRANGE 0x00020000 /* hardware supports ADC (capture) overrange detection */
255#define SNDRV_PCM_INFO_RESUME 0x00040000 /* hardware supports stream resume after suspend */
256#define SNDRV_PCM_INFO_PAUSE 0x00080000 /* pause ioctl is supported */
257#define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000 /* only half duplex */
258#define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000 /* playback and capture stream are somewhat correlated */
259#define SNDRV_PCM_INFO_SYNC_START 0x00400000 /* pcm support some kind of sync go */
260#define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP 0x00800000 /* period wakeup can be disabled */
261#define SNDRV_PCM_INFO_HAS_WALL_CLOCK 0x01000000 /* has audio wall clock for audio/system time sync */
262#define SNDRV_PCM_INFO_FIFO_IN_FRAMES 0x80000000 /* internal kernel flag - FIFO size is in frames */
263
264typedef int __bitwise snd_pcm_state_t;
265#define SNDRV_PCM_STATE_OPEN ((__force snd_pcm_state_t) 0) /* stream is open */
266#define SNDRV_PCM_STATE_SETUP ((__force snd_pcm_state_t) 1) /* stream has a setup */
267#define SNDRV_PCM_STATE_PREPARED ((__force snd_pcm_state_t) 2) /* stream is ready to start */
268#define SNDRV_PCM_STATE_RUNNING ((__force snd_pcm_state_t) 3) /* stream is running */
269#define SNDRV_PCM_STATE_XRUN ((__force snd_pcm_state_t) 4) /* stream reached an xrun */
270#define SNDRV_PCM_STATE_DRAINING ((__force snd_pcm_state_t) 5) /* stream is draining */
271#define SNDRV_PCM_STATE_PAUSED ((__force snd_pcm_state_t) 6) /* stream is paused */
272#define SNDRV_PCM_STATE_SUSPENDED ((__force snd_pcm_state_t) 7) /* hardware is suspended */
273#define SNDRV_PCM_STATE_DISCONNECTED ((__force snd_pcm_state_t) 8) /* hardware is disconnected */
274#define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED
275
276enum {
277 SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000,
278 SNDRV_PCM_MMAP_OFFSET_STATUS = 0x80000000,
279 SNDRV_PCM_MMAP_OFFSET_CONTROL = 0x81000000,
280};
281
282union snd_pcm_sync_id {
283 unsigned char id[16];
284 unsigned short id16[8];
285 unsigned int id32[4];
286};
287
288struct snd_pcm_info {
289 unsigned int device; /* RO/WR (control): device number */
290 unsigned int subdevice; /* RO/WR (control): subdevice number */
291 int stream; /* RO/WR (control): stream direction */
292 int card; /* R: card number */
293 unsigned char id[64]; /* ID (user selectable) */
294 unsigned char name[80]; /* name of this device */
295 unsigned char subname[32]; /* subdevice name */
296 int dev_class; /* SNDRV_PCM_CLASS_* */
297 int dev_subclass; /* SNDRV_PCM_SUBCLASS_* */
298 unsigned int subdevices_count;
299 unsigned int subdevices_avail;
300 union snd_pcm_sync_id sync; /* hardware synchronization ID */
301 unsigned char reserved[64]; /* reserved for future... */
302};
303
304typedef int snd_pcm_hw_param_t;
305#define SNDRV_PCM_HW_PARAM_ACCESS 0 /* Access type */
306#define SNDRV_PCM_HW_PARAM_FORMAT 1 /* Format */
307#define SNDRV_PCM_HW_PARAM_SUBFORMAT 2 /* Subformat */
308#define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS
309#define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT
310
311#define SNDRV_PCM_HW_PARAM_SAMPLE_BITS 8 /* Bits per sample */
312#define SNDRV_PCM_HW_PARAM_FRAME_BITS 9 /* Bits per frame */
313#define SNDRV_PCM_HW_PARAM_CHANNELS 10 /* Channels */
314#define SNDRV_PCM_HW_PARAM_RATE 11 /* Approx rate */
315#define SNDRV_PCM_HW_PARAM_PERIOD_TIME 12 /* Approx distance between
316 * interrupts in us
317 */
318#define SNDRV_PCM_HW_PARAM_PERIOD_SIZE 13 /* Approx frames between
319 * interrupts
320 */
321#define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14 /* Approx bytes between
322 * interrupts
323 */
324#define SNDRV_PCM_HW_PARAM_PERIODS 15 /* Approx interrupts per
325 * buffer
326 */
327#define SNDRV_PCM_HW_PARAM_BUFFER_TIME 16 /* Approx duration of buffer
328 * in us
329 */
330#define SNDRV_PCM_HW_PARAM_BUFFER_SIZE 17 /* Size of buffer in frames */
331#define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18 /* Size of buffer in bytes */
332#define SNDRV_PCM_HW_PARAM_TICK_TIME 19 /* Approx tick duration in us */
333#define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS
334#define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME
335
336#define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0) /* avoid rate resampling */
337#define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER (1<<1) /* export buffer */
338#define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP (1<<2) /* disable period wakeups */
339
340struct snd_interval {
341 unsigned int min, max;
342 unsigned int openmin:1,
343 openmax:1,
344 integer:1,
345 empty:1;
346};
347
348#define SNDRV_MASK_MAX 256
349
350struct snd_mask {
351 __u32 bits[(SNDRV_MASK_MAX+31)/32];
352};
353
354struct snd_pcm_hw_params {
355 unsigned int flags;
356 struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK -
357 SNDRV_PCM_HW_PARAM_FIRST_MASK + 1];
358 struct snd_mask mres[5]; /* reserved masks */
359 struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL -
360 SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1];
361 struct snd_interval ires[9]; /* reserved intervals */
362 unsigned int rmask; /* W: requested masks */
363 unsigned int cmask; /* R: changed masks */
364 unsigned int info; /* R: Info flags for returned setup */
365 unsigned int msbits; /* R: used most significant bits */
366 unsigned int rate_num; /* R: rate numerator */
367 unsigned int rate_den; /* R: rate denominator */
368 snd_pcm_uframes_t fifo_size; /* R: chip FIFO size in frames */
369 unsigned char reserved[64]; /* reserved for future */
370};
371
372enum {
373 SNDRV_PCM_TSTAMP_NONE = 0,
374 SNDRV_PCM_TSTAMP_ENABLE,
375 SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE,
376};
377
378struct snd_pcm_sw_params {
379 int tstamp_mode; /* timestamp mode */
380 unsigned int period_step;
381 unsigned int sleep_min; /* min ticks to sleep */
382 snd_pcm_uframes_t avail_min; /* min avail frames for wakeup */
383 snd_pcm_uframes_t xfer_align; /* obsolete: xfer size need to be a multiple */
384 snd_pcm_uframes_t start_threshold; /* min hw_avail frames for automatic start */
385 snd_pcm_uframes_t stop_threshold; /* min avail frames for automatic stop */
386 snd_pcm_uframes_t silence_threshold; /* min distance from noise for silence filling */
387 snd_pcm_uframes_t silence_size; /* silence block size */
388 snd_pcm_uframes_t boundary; /* pointers wrap point */
389 unsigned char reserved[64]; /* reserved for future */
390};
391
392struct snd_pcm_channel_info {
393 unsigned int channel;
394 __kernel_off_t offset; /* mmap offset */
395 unsigned int first; /* offset to first sample in bits */
396 unsigned int step; /* samples distance in bits */
397};
398
399struct snd_pcm_status {
400 snd_pcm_state_t state; /* stream state */
401 struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */
402 struct timespec tstamp; /* reference timestamp */
403 snd_pcm_uframes_t appl_ptr; /* appl ptr */
404 snd_pcm_uframes_t hw_ptr; /* hw ptr */
405 snd_pcm_sframes_t delay; /* current delay in frames */
406 snd_pcm_uframes_t avail; /* number of frames available */
407 snd_pcm_uframes_t avail_max; /* max frames available on hw since last status */
408 snd_pcm_uframes_t overrange; /* count of ADC (capture) overrange detections from last status */
409 snd_pcm_state_t suspended_state; /* suspended stream state */
410 __u32 reserved_alignment; /* must be filled with zero */
411 struct timespec audio_tstamp; /* from sample counter or wall clock */
412 unsigned char reserved[56-sizeof(struct timespec)]; /* must be filled with zero */
413};
414
415struct snd_pcm_mmap_status {
416 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */
417 int pad1; /* Needed for 64 bit alignment */
418 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */
419 struct timespec tstamp; /* Timestamp */
420 snd_pcm_state_t suspended_state; /* RO: suspended stream state */
421 struct timespec audio_tstamp; /* from sample counter or wall clock */
422};
423
424struct snd_pcm_mmap_control {
425 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */
426 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */
427};
428
429#define SNDRV_PCM_SYNC_PTR_HWSYNC (1<<0) /* execute hwsync */
430#define SNDRV_PCM_SYNC_PTR_APPL (1<<1) /* get appl_ptr from driver (r/w op) */
431#define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1<<2) /* get avail_min from driver */
432
433struct snd_pcm_sync_ptr {
434 unsigned int flags;
435 union {
436 struct snd_pcm_mmap_status status;
437 unsigned char reserved[64];
438 } s;
439 union {
440 struct snd_pcm_mmap_control control;
441 unsigned char reserved[64];
442 } c;
443};
444
445struct snd_xferi {
446 snd_pcm_sframes_t result;
447 void __user *buf;
448 snd_pcm_uframes_t frames;
449};
450
451struct snd_xfern {
452 snd_pcm_sframes_t result;
453 void __user * __user *bufs;
454 snd_pcm_uframes_t frames;
455};
456
457enum {
458 SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0, /* gettimeofday equivalent */
459 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, /* posix_clock_monotonic equivalent */
460 SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC,
461};
462
463/* channel positions */
464enum {
465 SNDRV_CHMAP_UNKNOWN = 0,
466 SNDRV_CHMAP_NA, /* N/A, silent */
467 SNDRV_CHMAP_MONO, /* mono stream */
468 /* this follows the alsa-lib mixer channel value + 3 */
469 SNDRV_CHMAP_FL, /* front left */
470 SNDRV_CHMAP_FR, /* front right */
471 SNDRV_CHMAP_RL, /* rear left */
472 SNDRV_CHMAP_RR, /* rear right */
473 SNDRV_CHMAP_FC, /* front center */
474 SNDRV_CHMAP_LFE, /* LFE */
475 SNDRV_CHMAP_SL, /* side left */
476 SNDRV_CHMAP_SR, /* side right */
477 SNDRV_CHMAP_RC, /* rear center */
478 /* new definitions */
479 SNDRV_CHMAP_FLC, /* front left center */
480 SNDRV_CHMAP_FRC, /* front right center */
481 SNDRV_CHMAP_RLC, /* rear left center */
482 SNDRV_CHMAP_RRC, /* rear right center */
483 SNDRV_CHMAP_FLW, /* front left wide */
484 SNDRV_CHMAP_FRW, /* front right wide */
485 SNDRV_CHMAP_FLH, /* front left high */
486 SNDRV_CHMAP_FCH, /* front center high */
487 SNDRV_CHMAP_FRH, /* front right high */
488 SNDRV_CHMAP_TC, /* top center */
489 SNDRV_CHMAP_TFL, /* top front left */
490 SNDRV_CHMAP_TFR, /* top front right */
491 SNDRV_CHMAP_TFC, /* top front center */
492 SNDRV_CHMAP_TRL, /* top rear left */
493 SNDRV_CHMAP_TRR, /* top rear right */
494 SNDRV_CHMAP_TRC, /* top rear center */
495 /* new definitions for UAC2 */
496 SNDRV_CHMAP_TFLC, /* top front left center */
497 SNDRV_CHMAP_TFRC, /* top front right center */
498 SNDRV_CHMAP_TSL, /* top side left */
499 SNDRV_CHMAP_TSR, /* top side right */
500 SNDRV_CHMAP_LLFE, /* left LFE */
501 SNDRV_CHMAP_RLFE, /* right LFE */
502 SNDRV_CHMAP_BC, /* bottom center */
503 SNDRV_CHMAP_BLC, /* bottom left center */
504 SNDRV_CHMAP_BRC, /* bottom right center */
505 SNDRV_CHMAP_LAST = SNDRV_CHMAP_BRC,
506};
507
508#define SNDRV_CHMAP_POSITION_MASK 0xffff
509#define SNDRV_CHMAP_PHASE_INVERSE (0x01 << 16)
510#define SNDRV_CHMAP_DRIVER_SPEC (0x02 << 16)
511
512#define SNDRV_PCM_IOCTL_PVERSION _IOR('A', 0x00, int)
513#define SNDRV_PCM_IOCTL_INFO _IOR('A', 0x01, struct snd_pcm_info)
514#define SNDRV_PCM_IOCTL_TSTAMP _IOW('A', 0x02, int)
515#define SNDRV_PCM_IOCTL_TTSTAMP _IOW('A', 0x03, int)
516#define SNDRV_PCM_IOCTL_HW_REFINE _IOWR('A', 0x10, struct snd_pcm_hw_params)
517#define SNDRV_PCM_IOCTL_HW_PARAMS _IOWR('A', 0x11, struct snd_pcm_hw_params)
518#define SNDRV_PCM_IOCTL_HW_FREE _IO('A', 0x12)
519#define SNDRV_PCM_IOCTL_SW_PARAMS _IOWR('A', 0x13, struct snd_pcm_sw_params)
520#define SNDRV_PCM_IOCTL_STATUS _IOR('A', 0x20, struct snd_pcm_status)
521#define SNDRV_PCM_IOCTL_DELAY _IOR('A', 0x21, snd_pcm_sframes_t)
522#define SNDRV_PCM_IOCTL_HWSYNC _IO('A', 0x22)
523#define SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct snd_pcm_sync_ptr)
524#define SNDRV_PCM_IOCTL_CHANNEL_INFO _IOR('A', 0x32, struct snd_pcm_channel_info)
525#define SNDRV_PCM_IOCTL_PREPARE _IO('A', 0x40)
526#define SNDRV_PCM_IOCTL_RESET _IO('A', 0x41)
527#define SNDRV_PCM_IOCTL_START _IO('A', 0x42)
528#define SNDRV_PCM_IOCTL_DROP _IO('A', 0x43)
529#define SNDRV_PCM_IOCTL_DRAIN _IO('A', 0x44)
530#define SNDRV_PCM_IOCTL_PAUSE _IOW('A', 0x45, int)
531#define SNDRV_PCM_IOCTL_REWIND _IOW('A', 0x46, snd_pcm_uframes_t)
532#define SNDRV_PCM_IOCTL_RESUME _IO('A', 0x47)
533#define SNDRV_PCM_IOCTL_XRUN _IO('A', 0x48)
534#define SNDRV_PCM_IOCTL_FORWARD _IOW('A', 0x49, snd_pcm_uframes_t)
535#define SNDRV_PCM_IOCTL_WRITEI_FRAMES _IOW('A', 0x50, struct snd_xferi)
536#define SNDRV_PCM_IOCTL_READI_FRAMES _IOR('A', 0x51, struct snd_xferi)
537#define SNDRV_PCM_IOCTL_WRITEN_FRAMES _IOW('A', 0x52, struct snd_xfern)
538#define SNDRV_PCM_IOCTL_READN_FRAMES _IOR('A', 0x53, struct snd_xfern)
539#define SNDRV_PCM_IOCTL_LINK _IOW('A', 0x60, int)
540#define SNDRV_PCM_IOCTL_UNLINK _IO('A', 0x61)
541
542/*****************************************************************************
543 * *
544 * MIDI v1.0 interface *
545 * *
546 *****************************************************************************/
547
548/*
549 * Raw MIDI section - /dev/snd/midi??
550 */
551
552#define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 0)
553
554enum {
555 SNDRV_RAWMIDI_STREAM_OUTPUT = 0,
556 SNDRV_RAWMIDI_STREAM_INPUT,
557 SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT,
558};
559
560#define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001
561#define SNDRV_RAWMIDI_INFO_INPUT 0x00000002
562#define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004
563
564struct snd_rawmidi_info {
565 unsigned int device; /* RO/WR (control): device number */
566 unsigned int subdevice; /* RO/WR (control): subdevice number */
567 int stream; /* WR: stream */
568 int card; /* R: card number */
569 unsigned int flags; /* SNDRV_RAWMIDI_INFO_XXXX */
570 unsigned char id[64]; /* ID (user selectable) */
571 unsigned char name[80]; /* name of device */
572 unsigned char subname[32]; /* name of active or selected subdevice */
573 unsigned int subdevices_count;
574 unsigned int subdevices_avail;
575 unsigned char reserved[64]; /* reserved for future use */
576};
577
578struct snd_rawmidi_params {
579 int stream;
580 size_t buffer_size; /* queue size in bytes */
581 size_t avail_min; /* minimum avail bytes for wakeup */
582 unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */
583 unsigned char reserved[16]; /* reserved for future use */
584};
585
586struct snd_rawmidi_status {
587 int stream;
588 struct timespec tstamp; /* Timestamp */
589 size_t avail; /* available bytes */
590 size_t xruns; /* count of overruns since last status (in bytes) */
591 unsigned char reserved[16]; /* reserved for future use */
592};
593
594#define SNDRV_RAWMIDI_IOCTL_PVERSION _IOR('W', 0x00, int)
595#define SNDRV_RAWMIDI_IOCTL_INFO _IOR('W', 0x01, struct snd_rawmidi_info)
596#define SNDRV_RAWMIDI_IOCTL_PARAMS _IOWR('W', 0x10, struct snd_rawmidi_params)
597#define SNDRV_RAWMIDI_IOCTL_STATUS _IOWR('W', 0x20, struct snd_rawmidi_status)
598#define SNDRV_RAWMIDI_IOCTL_DROP _IOW('W', 0x30, int)
599#define SNDRV_RAWMIDI_IOCTL_DRAIN _IOW('W', 0x31, int)
600
601/*
602 * Timer section - /dev/snd/timer
603 */
604
605#define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 6)
606
607enum {
608 SNDRV_TIMER_CLASS_NONE = -1,
609 SNDRV_TIMER_CLASS_SLAVE = 0,
610 SNDRV_TIMER_CLASS_GLOBAL,
611 SNDRV_TIMER_CLASS_CARD,
612 SNDRV_TIMER_CLASS_PCM,
613 SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM,
614};
615
616/* slave timer classes */
617enum {
618 SNDRV_TIMER_SCLASS_NONE = 0,
619 SNDRV_TIMER_SCLASS_APPLICATION,
620 SNDRV_TIMER_SCLASS_SEQUENCER, /* alias */
621 SNDRV_TIMER_SCLASS_OSS_SEQUENCER, /* alias */
622 SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER,
623};
624
625/* global timers (device member) */
626#define SNDRV_TIMER_GLOBAL_SYSTEM 0
627#define SNDRV_TIMER_GLOBAL_RTC 1
628#define SNDRV_TIMER_GLOBAL_HPET 2
629#define SNDRV_TIMER_GLOBAL_HRTIMER 3
630
631/* info flags */
632#define SNDRV_TIMER_FLG_SLAVE (1<<0) /* cannot be controlled */
633
634struct snd_timer_id {
635 int dev_class;
636 int dev_sclass;
637 int card;
638 int device;
639 int subdevice;
640};
641
642struct snd_timer_ginfo {
643 struct snd_timer_id tid; /* requested timer ID */
644 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */
645 int card; /* card number */
646 unsigned char id[64]; /* timer identification */
647 unsigned char name[80]; /* timer name */
648 unsigned long reserved0; /* reserved for future use */
649 unsigned long resolution; /* average period resolution in ns */
650 unsigned long resolution_min; /* minimal period resolution in ns */
651 unsigned long resolution_max; /* maximal period resolution in ns */
652 unsigned int clients; /* active timer clients */
653 unsigned char reserved[32];
654};
655
656struct snd_timer_gparams {
657 struct snd_timer_id tid; /* requested timer ID */
658 unsigned long period_num; /* requested precise period duration (in seconds) - numerator */
659 unsigned long period_den; /* requested precise period duration (in seconds) - denominator */
660 unsigned char reserved[32];
661};
662
663struct snd_timer_gstatus {
664 struct snd_timer_id tid; /* requested timer ID */
665 unsigned long resolution; /* current period resolution in ns */
666 unsigned long resolution_num; /* precise current period resolution (in seconds) - numerator */
667 unsigned long resolution_den; /* precise current period resolution (in seconds) - denominator */
668 unsigned char reserved[32];
669};
670
671struct snd_timer_select {
672 struct snd_timer_id id; /* bind to timer ID */
673 unsigned char reserved[32]; /* reserved */
674};
675
676struct snd_timer_info {
677 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */
678 int card; /* card number */
679 unsigned char id[64]; /* timer identificator */
680 unsigned char name[80]; /* timer name */
681 unsigned long reserved0; /* reserved for future use */
682 unsigned long resolution; /* average period resolution in ns */
683 unsigned char reserved[64]; /* reserved */
684};
685
686#define SNDRV_TIMER_PSFLG_AUTO (1<<0) /* auto start, otherwise one-shot */
687#define SNDRV_TIMER_PSFLG_EXCLUSIVE (1<<1) /* exclusive use, precise start/stop/pause/continue */
688#define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2) /* write early event to the poll queue */
689
690struct snd_timer_params {
691 unsigned int flags; /* flags - SNDRV_MIXER_PSFLG_* */
692 unsigned int ticks; /* requested resolution in ticks */
693 unsigned int queue_size; /* total size of queue (32-1024) */
694 unsigned int reserved0; /* reserved, was: failure locations */
695 unsigned int filter; /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */
696 unsigned char reserved[60]; /* reserved */
697};
698
699struct snd_timer_status {
700 struct timespec tstamp; /* Timestamp - last update */
701 unsigned int resolution; /* current period resolution in ns */
702 unsigned int lost; /* counter of master tick lost */
703 unsigned int overrun; /* count of read queue overruns */
704 unsigned int queue; /* used queue size */
705 unsigned char reserved[64]; /* reserved */
706};
707
708#define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int)
709#define SNDRV_TIMER_IOCTL_NEXT_DEVICE _IOWR('T', 0x01, struct snd_timer_id)
710#define SNDRV_TIMER_IOCTL_TREAD _IOW('T', 0x02, int)
711#define SNDRV_TIMER_IOCTL_GINFO _IOWR('T', 0x03, struct snd_timer_ginfo)
712#define SNDRV_TIMER_IOCTL_GPARAMS _IOW('T', 0x04, struct snd_timer_gparams)
713#define SNDRV_TIMER_IOCTL_GSTATUS _IOWR('T', 0x05, struct snd_timer_gstatus)
714#define SNDRV_TIMER_IOCTL_SELECT _IOW('T', 0x10, struct snd_timer_select)
715#define SNDRV_TIMER_IOCTL_INFO _IOR('T', 0x11, struct snd_timer_info)
716#define SNDRV_TIMER_IOCTL_PARAMS _IOW('T', 0x12, struct snd_timer_params)
717#define SNDRV_TIMER_IOCTL_STATUS _IOR('T', 0x14, struct snd_timer_status)
718/* The following four ioctls are changed since 1.0.9 due to confliction */
719#define SNDRV_TIMER_IOCTL_START _IO('T', 0xa0)
720#define SNDRV_TIMER_IOCTL_STOP _IO('T', 0xa1)
721#define SNDRV_TIMER_IOCTL_CONTINUE _IO('T', 0xa2)
722#define SNDRV_TIMER_IOCTL_PAUSE _IO('T', 0xa3)
723
724struct snd_timer_read {
725 unsigned int resolution;
726 unsigned int ticks;
727};
728
729enum {
730 SNDRV_TIMER_EVENT_RESOLUTION = 0, /* val = resolution in ns */
731 SNDRV_TIMER_EVENT_TICK, /* val = ticks */
732 SNDRV_TIMER_EVENT_START, /* val = resolution in ns */
733 SNDRV_TIMER_EVENT_STOP, /* val = 0 */
734 SNDRV_TIMER_EVENT_CONTINUE, /* val = resolution in ns */
735 SNDRV_TIMER_EVENT_PAUSE, /* val = 0 */
736 SNDRV_TIMER_EVENT_EARLY, /* val = 0, early event */
737 SNDRV_TIMER_EVENT_SUSPEND, /* val = 0 */
738 SNDRV_TIMER_EVENT_RESUME, /* val = resolution in ns */
739 /* master timer events for slave timer instances */
740 SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10,
741 SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10,
742 SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10,
743 SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10,
744 SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10,
745 SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10,
746};
747
748struct snd_timer_tread {
749 int event;
750 struct timespec tstamp;
751 unsigned int val;
752};
753
754/****************************************************************************
755 * *
756 * Section for driver control interface - /dev/snd/control? *
757 * *
758 ****************************************************************************/
759
760#define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 7)
761
762struct snd_ctl_card_info {
763 int card; /* card number */
764 int pad; /* reserved for future (was type) */
765 unsigned char id[16]; /* ID of card (user selectable) */
766 unsigned char driver[16]; /* Driver name */
767 unsigned char name[32]; /* Short name of soundcard */
768 unsigned char longname[80]; /* name + info text about soundcard */
769 unsigned char reserved_[16]; /* reserved for future (was ID of mixer) */
770 unsigned char mixername[80]; /* visual mixer identification */
771 unsigned char components[128]; /* card components / fine identification, delimited with one space (AC97 etc..) */
772};
773
774typedef int __bitwise snd_ctl_elem_type_t;
775#define SNDRV_CTL_ELEM_TYPE_NONE ((__force snd_ctl_elem_type_t) 0) /* invalid */
776#define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1) /* boolean type */
777#define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2) /* integer type */
778#define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((__force snd_ctl_elem_type_t) 3) /* enumerated type */
779#define SNDRV_CTL_ELEM_TYPE_BYTES ((__force snd_ctl_elem_type_t) 4) /* byte array */
780#define SNDRV_CTL_ELEM_TYPE_IEC958 ((__force snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */
781#define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((__force snd_ctl_elem_type_t) 6) /* 64-bit integer type */
782#define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64
783
784typedef int __bitwise snd_ctl_elem_iface_t;
785#define SNDRV_CTL_ELEM_IFACE_CARD ((__force snd_ctl_elem_iface_t) 0) /* global control */
786#define SNDRV_CTL_ELEM_IFACE_HWDEP ((__force snd_ctl_elem_iface_t) 1) /* hardware dependent device */
787#define SNDRV_CTL_ELEM_IFACE_MIXER ((__force snd_ctl_elem_iface_t) 2) /* virtual mixer device */
788#define SNDRV_CTL_ELEM_IFACE_PCM ((__force snd_ctl_elem_iface_t) 3) /* PCM device */
789#define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((__force snd_ctl_elem_iface_t) 4) /* RawMidi device */
790#define SNDRV_CTL_ELEM_IFACE_TIMER ((__force snd_ctl_elem_iface_t) 5) /* timer device */
791#define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((__force snd_ctl_elem_iface_t) 6) /* sequencer client */
792#define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER
793
794#define SNDRV_CTL_ELEM_ACCESS_READ (1<<0)
795#define SNDRV_CTL_ELEM_ACCESS_WRITE (1<<1)
796#define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE)
797#define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1<<2) /* control value may be changed without a notification */
798#define SNDRV_CTL_ELEM_ACCESS_TIMESTAMP (1<<3) /* when was control changed */
799#define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1<<4) /* TLV read is possible */
800#define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1<<5) /* TLV write is possible */
801#define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE)
802#define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1<<6) /* TLV command is possible */
803#define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) /* control does actually nothing, but may be updated */
804#define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) /* write lock */
805#define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) /* write lock owner */
806#define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1<<28) /* kernel use a TLV callback */
807#define SNDRV_CTL_ELEM_ACCESS_USER (1<<29) /* user space element */
808/* bits 30 and 31 are obsoleted (for indirect access) */
809
810/* for further details see the ACPI and PCI power management specification */
811#define SNDRV_CTL_POWER_D0 0x0000 /* full On */
812#define SNDRV_CTL_POWER_D1 0x0100 /* partial On */
813#define SNDRV_CTL_POWER_D2 0x0200 /* partial On */
814#define SNDRV_CTL_POWER_D3 0x0300 /* Off */
815#define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) /* Off, with power */
816#define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) /* Off, without power */
817
818struct snd_ctl_elem_id {
819 unsigned int numid; /* numeric identifier, zero = invalid */
820 snd_ctl_elem_iface_t iface; /* interface identifier */
821 unsigned int device; /* device/client number */
822 unsigned int subdevice; /* subdevice (substream) number */
823 unsigned char name[44]; /* ASCII name of item */
824 unsigned int index; /* index of item */
825};
826
827struct snd_ctl_elem_list {
828 unsigned int offset; /* W: first element ID to get */
829 unsigned int space; /* W: count of element IDs to get */
830 unsigned int used; /* R: count of element IDs set */
831 unsigned int count; /* R: count of all elements */
832 struct snd_ctl_elem_id __user *pids; /* R: IDs */
833 unsigned char reserved[50];
834};
835
836struct snd_ctl_elem_info {
837 struct snd_ctl_elem_id id; /* W: element ID */
838 snd_ctl_elem_type_t type; /* R: value type - SNDRV_CTL_ELEM_TYPE_* */
839 unsigned int access; /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */
840 unsigned int count; /* count of values */
841 __kernel_pid_t owner; /* owner's PID of this control */
842 union {
843 struct {
844 long min; /* R: minimum value */
845 long max; /* R: maximum value */
846 long step; /* R: step (0 variable) */
847 } integer;
848 struct {
849 long long min; /* R: minimum value */
850 long long max; /* R: maximum value */
851 long long step; /* R: step (0 variable) */
852 } integer64;
853 struct {
854 unsigned int items; /* R: number of items */
855 unsigned int item; /* W: item number */
856 char name[64]; /* R: value name */
857 __u64 names_ptr; /* W: names list (ELEM_ADD only) */
858 unsigned int names_length;
859 } enumerated;
860 unsigned char reserved[128];
861 } value;
862 union {
863 unsigned short d[4]; /* dimensions */
864 unsigned short *d_ptr; /* indirect - obsoleted */
865 } dimen;
866 unsigned char reserved[64-4*sizeof(unsigned short)];
867};
868
869struct snd_ctl_elem_value {
870 struct snd_ctl_elem_id id; /* W: element ID */
871 unsigned int indirect: 1; /* W: indirect access - obsoleted */
872 union {
873 union {
874 long value[128];
875 long *value_ptr; /* obsoleted */
876 } integer;
877 union {
878 long long value[64];
879 long long *value_ptr; /* obsoleted */
880 } integer64;
881 union {
882 unsigned int item[128];
883 unsigned int *item_ptr; /* obsoleted */
884 } enumerated;
885 union {
886 unsigned char data[512];
887 unsigned char *data_ptr; /* obsoleted */
888 } bytes;
889 struct snd_aes_iec958 iec958;
890 } value; /* RO */
891 struct timespec tstamp;
892 unsigned char reserved[128-sizeof(struct timespec)];
893};
894
895struct snd_ctl_tlv {
896 unsigned int numid; /* control element numeric identification */
897 unsigned int length; /* in bytes aligned to 4 */
898 unsigned int tlv[0]; /* first TLV */
899};
900
901#define SNDRV_CTL_IOCTL_PVERSION _IOR('U', 0x00, int)
902#define SNDRV_CTL_IOCTL_CARD_INFO _IOR('U', 0x01, struct snd_ctl_card_info)
903#define SNDRV_CTL_IOCTL_ELEM_LIST _IOWR('U', 0x10, struct snd_ctl_elem_list)
904#define SNDRV_CTL_IOCTL_ELEM_INFO _IOWR('U', 0x11, struct snd_ctl_elem_info)
905#define SNDRV_CTL_IOCTL_ELEM_READ _IOWR('U', 0x12, struct snd_ctl_elem_value)
906#define SNDRV_CTL_IOCTL_ELEM_WRITE _IOWR('U', 0x13, struct snd_ctl_elem_value)
907#define SNDRV_CTL_IOCTL_ELEM_LOCK _IOW('U', 0x14, struct snd_ctl_elem_id)
908#define SNDRV_CTL_IOCTL_ELEM_UNLOCK _IOW('U', 0x15, struct snd_ctl_elem_id)
909#define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int)
910#define SNDRV_CTL_IOCTL_ELEM_ADD _IOWR('U', 0x17, struct snd_ctl_elem_info)
911#define SNDRV_CTL_IOCTL_ELEM_REPLACE _IOWR('U', 0x18, struct snd_ctl_elem_info)
912#define SNDRV_CTL_IOCTL_ELEM_REMOVE _IOWR('U', 0x19, struct snd_ctl_elem_id)
913#define SNDRV_CTL_IOCTL_TLV_READ _IOWR('U', 0x1a, struct snd_ctl_tlv)
914#define SNDRV_CTL_IOCTL_TLV_WRITE _IOWR('U', 0x1b, struct snd_ctl_tlv)
915#define SNDRV_CTL_IOCTL_TLV_COMMAND _IOWR('U', 0x1c, struct snd_ctl_tlv)
916#define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int)
917#define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info)
918#define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int)
919#define SNDRV_CTL_IOCTL_PCM_INFO _IOWR('U', 0x31, struct snd_pcm_info)
920#define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int)
921#define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int)
922#define SNDRV_CTL_IOCTL_RAWMIDI_INFO _IOWR('U', 0x41, struct snd_rawmidi_info)
923#define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int)
924#define SNDRV_CTL_IOCTL_POWER _IOWR('U', 0xd0, int)
925#define SNDRV_CTL_IOCTL_POWER_STATE _IOR('U', 0xd1, int)
926
927/*
928 * Read interface.
929 */
930
931enum sndrv_ctl_event_type {
932 SNDRV_CTL_EVENT_ELEM = 0,
933 SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM,
934};
935
936#define SNDRV_CTL_EVENT_MASK_VALUE (1<<0) /* element value was changed */
937#define SNDRV_CTL_EVENT_MASK_INFO (1<<1) /* element info was changed */
938#define SNDRV_CTL_EVENT_MASK_ADD (1<<2) /* element was added */
939#define SNDRV_CTL_EVENT_MASK_TLV (1<<3) /* element TLV tree was changed */
940#define SNDRV_CTL_EVENT_MASK_REMOVE (~0U) /* element was removed */
941
942struct snd_ctl_event {
943 int type; /* event type - SNDRV_CTL_EVENT_* */
944 union {
945 struct {
946 unsigned int mask;
947 struct snd_ctl_elem_id id;
948 } elem;
949 unsigned char data8[60];
950 } data;
951};
952
953/*
954 * Control names
955 */
956
957#define SNDRV_CTL_NAME_NONE ""
958#define SNDRV_CTL_NAME_PLAYBACK "Playback "
959#define SNDRV_CTL_NAME_CAPTURE "Capture "
960
961#define SNDRV_CTL_NAME_IEC958_NONE ""
962#define SNDRV_CTL_NAME_IEC958_SWITCH "Switch"
963#define SNDRV_CTL_NAME_IEC958_VOLUME "Volume"
964#define SNDRV_CTL_NAME_IEC958_DEFAULT "Default"
965#define SNDRV_CTL_NAME_IEC958_MASK "Mask"
966#define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask"
967#define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask"
968#define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream"
969#define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what
970
971#endif /* _UAPI__SOUND_ASOUND_H */