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GUI: Fix Tomato RAF theme for all builds. Compilation typo.
[tomato.git] / release / src-rt-6.x.4708 / toolchains / hndtools-arm-linux-2.6.36-uclibc-4.5.3 / arm-brcm-linux-uclibcgnueabi / sysroot / usr / include / sound / asound.h
blob82ce3f9c31e129c61c8622f9d3fc2d8120743d97
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 __SOUND_ASOUND_H
24 #define __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
48 struct 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 * Section for driver hardware dependent interface - /dev/snd/hw? *
58 * *
59 ****************************************************************************/
60
61 #define SNDRV_HWDEP_VERSION SNDRV_PROTOCOL_VERSION(1, 0, 1)
62
63 enum {
64 SNDRV_HWDEP_IFACE_OPL2 = 0,
65 SNDRV_HWDEP_IFACE_OPL3,
66 SNDRV_HWDEP_IFACE_OPL4,
67 SNDRV_HWDEP_IFACE_SB16CSP, /* Creative Signal Processor */
68 SNDRV_HWDEP_IFACE_EMU10K1, /* FX8010 processor in EMU10K1 chip */
69 SNDRV_HWDEP_IFACE_YSS225, /* Yamaha FX processor */
70 SNDRV_HWDEP_IFACE_ICS2115, /* Wavetable synth */
71 SNDRV_HWDEP_IFACE_SSCAPE, /* Ensoniq SoundScape ISA card (MC68EC000) */
72 SNDRV_HWDEP_IFACE_VX, /* Digigram VX cards */
73 SNDRV_HWDEP_IFACE_MIXART, /* Digigram miXart cards */
74 SNDRV_HWDEP_IFACE_USX2Y, /* Tascam US122, US224 & US428 usb */
75 SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */
76 SNDRV_HWDEP_IFACE_BLUETOOTH, /* Bluetooth audio */
77 SNDRV_HWDEP_IFACE_USX2Y_PCM, /* Tascam US122, US224 & US428 rawusb pcm */
78 SNDRV_HWDEP_IFACE_PCXHR, /* Digigram PCXHR */
79 SNDRV_HWDEP_IFACE_SB_RC, /* SB Extigy/Audigy2NX remote control */
80 SNDRV_HWDEP_IFACE_HDA, /* HD-audio */
81 SNDRV_HWDEP_IFACE_USB_STREAM, /* direct access to usb stream */
82
83 /* Don't forget to change the following: */
84 SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_USB_STREAM
85 };
86
87 struct snd_hwdep_info {
88 unsigned int device; /* WR: device number */
89 int card; /* R: card number */
90 unsigned char id[64]; /* ID (user selectable) */
91 unsigned char name[80]; /* hwdep name */
92 int iface; /* hwdep interface */
93 unsigned char reserved[64]; /* reserved for future */
94 };
95
96 /* generic DSP loader */
97 struct snd_hwdep_dsp_status {
98 unsigned int version; /* R: driver-specific version */
99 unsigned char id[32]; /* R: driver-specific ID string */
100 unsigned int num_dsps; /* R: number of DSP images to transfer */
101 unsigned int dsp_loaded; /* R: bit flags indicating the loaded DSPs */
102 unsigned int chip_ready; /* R: 1 = initialization finished */
103 unsigned char reserved[16]; /* reserved for future use */
104 };
105
106 struct snd_hwdep_dsp_image {
107 unsigned int index; /* W: DSP index */
108 unsigned char name[64]; /* W: ID (e.g. file name) */
109 unsigned char *image; /* W: binary image */
110 size_t length; /* W: size of image in bytes */
111 unsigned long driver_data; /* W: driver-specific data */
112 };
113
114 #define SNDRV_HWDEP_IOCTL_PVERSION _IOR ('H', 0x00, int)
115 #define SNDRV_HWDEP_IOCTL_INFO _IOR ('H', 0x01, struct snd_hwdep_info)
116 #define SNDRV_HWDEP_IOCTL_DSP_STATUS _IOR('H', 0x02, struct snd_hwdep_dsp_status)
117 #define SNDRV_HWDEP_IOCTL_DSP_LOAD _IOW('H', 0x03, struct snd_hwdep_dsp_image)
118
119 /*****************************************************************************
120 * *
121 * Digital Audio (PCM) interface - /dev/snd/pcm?? *
122 * *
123 *****************************************************************************/
124
125 #define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 10)
126
127 typedef unsigned long snd_pcm_uframes_t;
128 typedef signed long snd_pcm_sframes_t;
129
130 enum {
131 SNDRV_PCM_CLASS_GENERIC = 0, /* standard mono or stereo device */
132 SNDRV_PCM_CLASS_MULTI, /* multichannel device */
133 SNDRV_PCM_CLASS_MODEM, /* software modem class */
134 SNDRV_PCM_CLASS_DIGITIZER, /* digitizer class */
135 /* Don't forget to change the following: */
136 SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER,
137 };
138
139 enum {
140 SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, /* mono or stereo subdevices are mixed together */
141 SNDRV_PCM_SUBCLASS_MULTI_MIX, /* multichannel subdevices are mixed together */
142 /* Don't forget to change the following: */
143 SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX,
144 };
145
146 enum {
147 SNDRV_PCM_STREAM_PLAYBACK = 0,
148 SNDRV_PCM_STREAM_CAPTURE,
149 SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE,
150 };
151
152 typedef int __bitwise snd_pcm_access_t;
153 #define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED ((snd_pcm_access_t) 0) /* interleaved mmap */
154 #define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED ((snd_pcm_access_t) 1) /* noninterleaved mmap */
155 #define SNDRV_PCM_ACCESS_MMAP_COMPLEX ((snd_pcm_access_t) 2) /* complex mmap */
156 #define SNDRV_PCM_ACCESS_RW_INTERLEAVED ((snd_pcm_access_t) 3) /* readi/writei */
157 #define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED ((snd_pcm_access_t) 4) /* readn/writen */
158 #define SNDRV_PCM_ACCESS_LAST SNDRV_PCM_ACCESS_RW_NONINTERLEAVED
159
160 typedef int __bitwise snd_pcm_format_t;
161 #define SNDRV_PCM_FORMAT_S8 ((snd_pcm_format_t) 0)
162 #define SNDRV_PCM_FORMAT_U8 ((snd_pcm_format_t) 1)
163 #define SNDRV_PCM_FORMAT_S16_LE ((snd_pcm_format_t) 2)
164 #define SNDRV_PCM_FORMAT_S16_BE ((snd_pcm_format_t) 3)
165 #define SNDRV_PCM_FORMAT_U16_LE ((snd_pcm_format_t) 4)
166 #define SNDRV_PCM_FORMAT_U16_BE ((snd_pcm_format_t) 5)
167 #define SNDRV_PCM_FORMAT_S24_LE ((snd_pcm_format_t) 6) /* low three bytes */
168 #define SNDRV_PCM_FORMAT_S24_BE ((snd_pcm_format_t) 7) /* low three bytes */
169 #define SNDRV_PCM_FORMAT_U24_LE ((snd_pcm_format_t) 8) /* low three bytes */
170 #define SNDRV_PCM_FORMAT_U24_BE ((snd_pcm_format_t) 9) /* low three bytes */
171 #define SNDRV_PCM_FORMAT_S32_LE ((snd_pcm_format_t) 10)
172 #define SNDRV_PCM_FORMAT_S32_BE ((snd_pcm_format_t) 11)
173 #define SNDRV_PCM_FORMAT_U32_LE ((snd_pcm_format_t) 12)
174 #define SNDRV_PCM_FORMAT_U32_BE ((snd_pcm_format_t) 13)
175 #define SNDRV_PCM_FORMAT_FLOAT_LE ((snd_pcm_format_t) 14) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */
176 #define SNDRV_PCM_FORMAT_FLOAT_BE ((snd_pcm_format_t) 15) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */
177 #define SNDRV_PCM_FORMAT_FLOAT64_LE ((snd_pcm_format_t) 16) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */
178 #define SNDRV_PCM_FORMAT_FLOAT64_BE ((snd_pcm_format_t) 17) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */
179 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((snd_pcm_format_t) 18) /* IEC-958 subframe, Little Endian */
180 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((snd_pcm_format_t) 19) /* IEC-958 subframe, Big Endian */
181 #define SNDRV_PCM_FORMAT_MU_LAW ((snd_pcm_format_t) 20)
182 #define SNDRV_PCM_FORMAT_A_LAW ((snd_pcm_format_t) 21)
183 #define SNDRV_PCM_FORMAT_IMA_ADPCM ((snd_pcm_format_t) 22)
184 #define SNDRV_PCM_FORMAT_MPEG ((snd_pcm_format_t) 23)
185 #define SNDRV_PCM_FORMAT_GSM ((snd_pcm_format_t) 24)
186 #define SNDRV_PCM_FORMAT_SPECIAL ((snd_pcm_format_t) 31)
187 #define SNDRV_PCM_FORMAT_S24_3LE ((snd_pcm_format_t) 32) /* in three bytes */
188 #define SNDRV_PCM_FORMAT_S24_3BE ((snd_pcm_format_t) 33) /* in three bytes */
189 #define SNDRV_PCM_FORMAT_U24_3LE ((snd_pcm_format_t) 34) /* in three bytes */
190 #define SNDRV_PCM_FORMAT_U24_3BE ((snd_pcm_format_t) 35) /* in three bytes */
191 #define SNDRV_PCM_FORMAT_S20_3LE ((snd_pcm_format_t) 36) /* in three bytes */
192 #define SNDRV_PCM_FORMAT_S20_3BE ((snd_pcm_format_t) 37) /* in three bytes */
193 #define SNDRV_PCM_FORMAT_U20_3LE ((snd_pcm_format_t) 38) /* in three bytes */
194 #define SNDRV_PCM_FORMAT_U20_3BE ((snd_pcm_format_t) 39) /* in three bytes */
195 #define SNDRV_PCM_FORMAT_S18_3LE ((snd_pcm_format_t) 40) /* in three bytes */
196 #define SNDRV_PCM_FORMAT_S18_3BE ((snd_pcm_format_t) 41) /* in three bytes */
197 #define SNDRV_PCM_FORMAT_U18_3LE ((snd_pcm_format_t) 42) /* in three bytes */
198 #define SNDRV_PCM_FORMAT_U18_3BE ((snd_pcm_format_t) 43) /* in three bytes */
199 #define SNDRV_PCM_FORMAT_G723_24 ((snd_pcm_format_t) 44) /* 8 samples in 3 bytes */
200 #define SNDRV_PCM_FORMAT_G723_24_1B ((snd_pcm_format_t) 45) /* 1 sample in 1 byte */
201 #define SNDRV_PCM_FORMAT_G723_40 ((snd_pcm_format_t) 46) /* 8 Samples in 5 bytes */
202 #define SNDRV_PCM_FORMAT_G723_40_1B ((snd_pcm_format_t) 47) /* 1 sample in 1 byte */
203 #define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_G723_40_1B
204
205 #ifdef SNDRV_LITTLE_ENDIAN
206 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE
207 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE
208 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE
209 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE
210 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE
211 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE
212 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE
213 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE
214 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE
215 #endif
216 #ifdef SNDRV_BIG_ENDIAN
217 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE
218 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE
219 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE
220 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE
221 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE
222 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE
223 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE
224 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE
225 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE
226 #endif
227
228 typedef int __bitwise snd_pcm_subformat_t;
229 #define SNDRV_PCM_SUBFORMAT_STD ((snd_pcm_subformat_t) 0)
230 #define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_STD
231
232 #define SNDRV_PCM_INFO_MMAP 0x00000001 /* hardware supports mmap */
233 #define SNDRV_PCM_INFO_MMAP_VALID 0x00000002 /* period data are valid during transfer */
234 #define SNDRV_PCM_INFO_DOUBLE 0x00000004 /* Double buffering needed for PCM start/stop */
235 #define SNDRV_PCM_INFO_BATCH 0x00000010 /* double buffering */
236 #define SNDRV_PCM_INFO_INTERLEAVED 0x00000100 /* channels are interleaved */
237 #define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200 /* channels are not interleaved */
238 #define SNDRV_PCM_INFO_COMPLEX 0x00000400 /* complex frame organization (mmap only) */
239 #define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000 /* hardware transfer block of samples */
240 #define SNDRV_PCM_INFO_OVERRANGE 0x00020000 /* hardware supports ADC (capture) overrange detection */
241 #define SNDRV_PCM_INFO_RESUME 0x00040000 /* hardware supports stream resume after suspend */
242 #define SNDRV_PCM_INFO_PAUSE 0x00080000 /* pause ioctl is supported */
243 #define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000 /* only half duplex */
244 #define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000 /* playback and capture stream are somewhat correlated */
245 #define SNDRV_PCM_INFO_SYNC_START 0x00400000 /* pcm support some kind of sync go */
246 #define SNDRV_PCM_INFO_FIFO_IN_FRAMES 0x80000000 /* internal kernel flag - FIFO size is in frames */
247
248 typedef int __bitwise snd_pcm_state_t;
249 #define SNDRV_PCM_STATE_OPEN ((snd_pcm_state_t) 0) /* stream is open */
250 #define SNDRV_PCM_STATE_SETUP ((snd_pcm_state_t) 1) /* stream has a setup */
251 #define SNDRV_PCM_STATE_PREPARED ((snd_pcm_state_t) 2) /* stream is ready to start */
252 #define SNDRV_PCM_STATE_RUNNING ((snd_pcm_state_t) 3) /* stream is running */
253 #define SNDRV_PCM_STATE_XRUN ((snd_pcm_state_t) 4) /* stream reached an xrun */
254 #define SNDRV_PCM_STATE_DRAINING ((snd_pcm_state_t) 5) /* stream is draining */
255 #define SNDRV_PCM_STATE_PAUSED ((snd_pcm_state_t) 6) /* stream is paused */
256 #define SNDRV_PCM_STATE_SUSPENDED ((snd_pcm_state_t) 7) /* hardware is suspended */
257 #define SNDRV_PCM_STATE_DISCONNECTED ((snd_pcm_state_t) 8) /* hardware is disconnected */
258 #define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED
259
260 enum {
261 SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000,
262 SNDRV_PCM_MMAP_OFFSET_STATUS = 0x80000000,
263 SNDRV_PCM_MMAP_OFFSET_CONTROL = 0x81000000,
264 };
265
266 union snd_pcm_sync_id {
267 unsigned char id[16];
268 unsigned short id16[8];
269 unsigned int id32[4];
270 };
271
272 struct snd_pcm_info {
273 unsigned int device; /* RO/WR (control): device number */
274 unsigned int subdevice; /* RO/WR (control): subdevice number */
275 int stream; /* RO/WR (control): stream direction */
276 int card; /* R: card number */
277 unsigned char id[64]; /* ID (user selectable) */
278 unsigned char name[80]; /* name of this device */
279 unsigned char subname[32]; /* subdevice name */
280 int dev_class; /* SNDRV_PCM_CLASS_* */
281 int dev_subclass; /* SNDRV_PCM_SUBCLASS_* */
282 unsigned int subdevices_count;
283 unsigned int subdevices_avail;
284 union snd_pcm_sync_id sync; /* hardware synchronization ID */
285 unsigned char reserved[64]; /* reserved for future... */
286 };
287
288 typedef int snd_pcm_hw_param_t;
289 #define SNDRV_PCM_HW_PARAM_ACCESS 0 /* Access type */
290 #define SNDRV_PCM_HW_PARAM_FORMAT 1 /* Format */
291 #define SNDRV_PCM_HW_PARAM_SUBFORMAT 2 /* Subformat */
292 #define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS
293 #define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT
294
295 #define SNDRV_PCM_HW_PARAM_SAMPLE_BITS 8 /* Bits per sample */
296 #define SNDRV_PCM_HW_PARAM_FRAME_BITS 9 /* Bits per frame */
297 #define SNDRV_PCM_HW_PARAM_CHANNELS 10 /* Channels */
298 #define SNDRV_PCM_HW_PARAM_RATE 11 /* Approx rate */
299 #define SNDRV_PCM_HW_PARAM_PERIOD_TIME 12 /* Approx distance between
300 * interrupts in us
301 */
302 #define SNDRV_PCM_HW_PARAM_PERIOD_SIZE 13 /* Approx frames between
303 * interrupts
304 */
305 #define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14 /* Approx bytes between
306 * interrupts
307 */
308 #define SNDRV_PCM_HW_PARAM_PERIODS 15 /* Approx interrupts per
309 * buffer
310 */
311 #define SNDRV_PCM_HW_PARAM_BUFFER_TIME 16 /* Approx duration of buffer
312 * in us
313 */
314 #define SNDRV_PCM_HW_PARAM_BUFFER_SIZE 17 /* Size of buffer in frames */
315 #define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18 /* Size of buffer in bytes */
316 #define SNDRV_PCM_HW_PARAM_TICK_TIME 19 /* Approx tick duration in us */
317 #define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS
318 #define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME
319
320 #define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0) /* avoid rate resampling */
321
322 struct snd_interval {
323 unsigned int min, max;
324 unsigned int openmin:1,
325 openmax:1,
326 integer:1,
327 empty:1;
328 };
329
330 #define SNDRV_MASK_MAX 256
331
332 struct snd_mask {
333 __u32 bits[(SNDRV_MASK_MAX+31)/32];
334 };
335
336 struct snd_pcm_hw_params {
337 unsigned int flags;
338 struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK -
339 SNDRV_PCM_HW_PARAM_FIRST_MASK + 1];
340 struct snd_mask mres[5]; /* reserved masks */
341 struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL -
342 SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1];
343 struct snd_interval ires[9]; /* reserved intervals */
344 unsigned int rmask; /* W: requested masks */
345 unsigned int cmask; /* R: changed masks */
346 unsigned int info; /* R: Info flags for returned setup */
347 unsigned int msbits; /* R: used most significant bits */
348 unsigned int rate_num; /* R: rate numerator */
349 unsigned int rate_den; /* R: rate denominator */
350 snd_pcm_uframes_t fifo_size; /* R: chip FIFO size in frames */
351 unsigned char reserved[64]; /* reserved for future */
352 };
353
354 enum {
355 SNDRV_PCM_TSTAMP_NONE = 0,
356 SNDRV_PCM_TSTAMP_ENABLE,
357 SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE,
358 };
359
360 struct snd_pcm_sw_params {
361 int tstamp_mode; /* timestamp mode */
362 unsigned int period_step;
363 unsigned int sleep_min; /* min ticks to sleep */
364 snd_pcm_uframes_t avail_min; /* min avail frames for wakeup */
365 snd_pcm_uframes_t xfer_align; /* obsolete: xfer size need to be a multiple */
366 snd_pcm_uframes_t start_threshold; /* min hw_avail frames for automatic start */
367 snd_pcm_uframes_t stop_threshold; /* min avail frames for automatic stop */
368 snd_pcm_uframes_t silence_threshold; /* min distance from noise for silence filling */
369 snd_pcm_uframes_t silence_size; /* silence block size */
370 snd_pcm_uframes_t boundary; /* pointers wrap point */
371 unsigned char reserved[64]; /* reserved for future */
372 };
373
374 struct snd_pcm_channel_info {
375 unsigned int channel;
376 __kernel_off_t offset; /* mmap offset */
377 unsigned int first; /* offset to first sample in bits */
378 unsigned int step; /* samples distance in bits */
379 };
380
381 struct snd_pcm_status {
382 snd_pcm_state_t state; /* stream state */
383 struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */
384 struct timespec tstamp; /* reference timestamp */
385 snd_pcm_uframes_t appl_ptr; /* appl ptr */
386 snd_pcm_uframes_t hw_ptr; /* hw ptr */
387 snd_pcm_sframes_t delay; /* current delay in frames */
388 snd_pcm_uframes_t avail; /* number of frames available */
389 snd_pcm_uframes_t avail_max; /* max frames available on hw since last status */
390 snd_pcm_uframes_t overrange; /* count of ADC (capture) overrange detections from last status */
391 snd_pcm_state_t suspended_state; /* suspended stream state */
392 unsigned char reserved[60]; /* must be filled with zero */
393 };
394
395 struct snd_pcm_mmap_status {
396 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */
397 int pad1; /* Needed for 64 bit alignment */
398 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */
399 struct timespec tstamp; /* Timestamp */
400 snd_pcm_state_t suspended_state; /* RO: suspended stream state */
401 };
402
403 struct snd_pcm_mmap_control {
404 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */
405 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */
406 };
407
408 #define SNDRV_PCM_SYNC_PTR_HWSYNC (1<<0) /* execute hwsync */
409 #define SNDRV_PCM_SYNC_PTR_APPL (1<<1) /* get appl_ptr from driver (r/w op) */
410 #define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1<<2) /* get avail_min from driver */
411
412 struct snd_pcm_sync_ptr {
413 unsigned int flags;
414 union {
415 struct snd_pcm_mmap_status status;
416 unsigned char reserved[64];
417 } s;
418 union {
419 struct snd_pcm_mmap_control control;
420 unsigned char reserved[64];
421 } c;
422 };
423
424 struct snd_xferi {
425 snd_pcm_sframes_t result;
426 void *buf;
427 snd_pcm_uframes_t frames;
428 };
429
430 struct snd_xfern {
431 snd_pcm_sframes_t result;
432 void * *bufs;
433 snd_pcm_uframes_t frames;
434 };
435
436 enum {
437 SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0, /* gettimeofday equivalent */
438 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, /* posix_clock_monotonic equivalent */
439 SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC,
440 };
441
442 #define SNDRV_PCM_IOCTL_PVERSION _IOR('A', 0x00, int)
443 #define SNDRV_PCM_IOCTL_INFO _IOR('A', 0x01, struct snd_pcm_info)
444 #define SNDRV_PCM_IOCTL_TSTAMP _IOW('A', 0x02, int)
445 #define SNDRV_PCM_IOCTL_TTSTAMP _IOW('A', 0x03, int)
446 #define SNDRV_PCM_IOCTL_HW_REFINE _IOWR('A', 0x10, struct snd_pcm_hw_params)
447 #define SNDRV_PCM_IOCTL_HW_PARAMS _IOWR('A', 0x11, struct snd_pcm_hw_params)
448 #define SNDRV_PCM_IOCTL_HW_FREE _IO('A', 0x12)
449 #define SNDRV_PCM_IOCTL_SW_PARAMS _IOWR('A', 0x13, struct snd_pcm_sw_params)
450 #define SNDRV_PCM_IOCTL_STATUS _IOR('A', 0x20, struct snd_pcm_status)
451 #define SNDRV_PCM_IOCTL_DELAY _IOR('A', 0x21, snd_pcm_sframes_t)
452 #define SNDRV_PCM_IOCTL_HWSYNC _IO('A', 0x22)
453 #define SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct snd_pcm_sync_ptr)
454 #define SNDRV_PCM_IOCTL_CHANNEL_INFO _IOR('A', 0x32, struct snd_pcm_channel_info)
455 #define SNDRV_PCM_IOCTL_PREPARE _IO('A', 0x40)
456 #define SNDRV_PCM_IOCTL_RESET _IO('A', 0x41)
457 #define SNDRV_PCM_IOCTL_START _IO('A', 0x42)
458 #define SNDRV_PCM_IOCTL_DROP _IO('A', 0x43)
459 #define SNDRV_PCM_IOCTL_DRAIN _IO('A', 0x44)
460 #define SNDRV_PCM_IOCTL_PAUSE _IOW('A', 0x45, int)
461 #define SNDRV_PCM_IOCTL_REWIND _IOW('A', 0x46, snd_pcm_uframes_t)
462 #define SNDRV_PCM_IOCTL_RESUME _IO('A', 0x47)
463 #define SNDRV_PCM_IOCTL_XRUN _IO('A', 0x48)
464 #define SNDRV_PCM_IOCTL_FORWARD _IOW('A', 0x49, snd_pcm_uframes_t)
465 #define SNDRV_PCM_IOCTL_WRITEI_FRAMES _IOW('A', 0x50, struct snd_xferi)
466 #define SNDRV_PCM_IOCTL_READI_FRAMES _IOR('A', 0x51, struct snd_xferi)
467 #define SNDRV_PCM_IOCTL_WRITEN_FRAMES _IOW('A', 0x52, struct snd_xfern)
468 #define SNDRV_PCM_IOCTL_READN_FRAMES _IOR('A', 0x53, struct snd_xfern)
469 #define SNDRV_PCM_IOCTL_LINK _IOW('A', 0x60, int)
470 #define SNDRV_PCM_IOCTL_UNLINK _IO('A', 0x61)
471
472 /*****************************************************************************
473 * *
474 * MIDI v1.0 interface *
475 * *
476 *****************************************************************************/
477
478 /*
479 * Raw MIDI section - /dev/snd/midi??
480 */
481
482 #define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 0)
483
484 enum {
485 SNDRV_RAWMIDI_STREAM_OUTPUT = 0,
486 SNDRV_RAWMIDI_STREAM_INPUT,
487 SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT,
488 };
489
490 #define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001
491 #define SNDRV_RAWMIDI_INFO_INPUT 0x00000002
492 #define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004
493
494 struct snd_rawmidi_info {
495 unsigned int device; /* RO/WR (control): device number */
496 unsigned int subdevice; /* RO/WR (control): subdevice number */
497 int stream; /* WR: stream */
498 int card; /* R: card number */
499 unsigned int flags; /* SNDRV_RAWMIDI_INFO_XXXX */
500 unsigned char id[64]; /* ID (user selectable) */
501 unsigned char name[80]; /* name of device */
502 unsigned char subname[32]; /* name of active or selected subdevice */
503 unsigned int subdevices_count;
504 unsigned int subdevices_avail;
505 unsigned char reserved[64]; /* reserved for future use */
506 };
507
508 struct snd_rawmidi_params {
509 int stream;
510 size_t buffer_size; /* queue size in bytes */
511 size_t avail_min; /* minimum avail bytes for wakeup */
512 unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */
513 unsigned char reserved[16]; /* reserved for future use */
514 };
515
516 struct snd_rawmidi_status {
517 int stream;
518 struct timespec tstamp; /* Timestamp */
519 size_t avail; /* available bytes */
520 size_t xruns; /* count of overruns since last status (in bytes) */
521 unsigned char reserved[16]; /* reserved for future use */
522 };
523
524 #define SNDRV_RAWMIDI_IOCTL_PVERSION _IOR('W', 0x00, int)
525 #define SNDRV_RAWMIDI_IOCTL_INFO _IOR('W', 0x01, struct snd_rawmidi_info)
526 #define SNDRV_RAWMIDI_IOCTL_PARAMS _IOWR('W', 0x10, struct snd_rawmidi_params)
527 #define SNDRV_RAWMIDI_IOCTL_STATUS _IOWR('W', 0x20, struct snd_rawmidi_status)
528 #define SNDRV_RAWMIDI_IOCTL_DROP _IOW('W', 0x30, int)
529 #define SNDRV_RAWMIDI_IOCTL_DRAIN _IOW('W', 0x31, int)
530
531 /*
532 * Timer section - /dev/snd/timer
533 */
534
535 #define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 6)
536
537 enum {
538 SNDRV_TIMER_CLASS_NONE = -1,
539 SNDRV_TIMER_CLASS_SLAVE = 0,
540 SNDRV_TIMER_CLASS_GLOBAL,
541 SNDRV_TIMER_CLASS_CARD,
542 SNDRV_TIMER_CLASS_PCM,
543 SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM,
544 };
545
546 /* slave timer classes */
547 enum {
548 SNDRV_TIMER_SCLASS_NONE = 0,
549 SNDRV_TIMER_SCLASS_APPLICATION,
550 SNDRV_TIMER_SCLASS_SEQUENCER, /* alias */
551 SNDRV_TIMER_SCLASS_OSS_SEQUENCER, /* alias */
552 SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER,
553 };
554
555 /* global timers (device member) */
556 #define SNDRV_TIMER_GLOBAL_SYSTEM 0
557 #define SNDRV_TIMER_GLOBAL_RTC 1
558 #define SNDRV_TIMER_GLOBAL_HPET 2
559 #define SNDRV_TIMER_GLOBAL_HRTIMER 3
560
561 /* info flags */
562 #define SNDRV_TIMER_FLG_SLAVE (1<<0) /* cannot be controlled */
563
564 struct snd_timer_id {
565 int dev_class;
566 int dev_sclass;
567 int card;
568 int device;
569 int subdevice;
570 };
571
572 struct snd_timer_ginfo {
573 struct snd_timer_id tid; /* requested timer ID */
574 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */
575 int card; /* card number */
576 unsigned char id[64]; /* timer identification */
577 unsigned char name[80]; /* timer name */
578 unsigned long reserved0; /* reserved for future use */
579 unsigned long resolution; /* average period resolution in ns */
580 unsigned long resolution_min; /* minimal period resolution in ns */
581 unsigned long resolution_max; /* maximal period resolution in ns */
582 unsigned int clients; /* active timer clients */
583 unsigned char reserved[32];
584 };
585
586 struct snd_timer_gparams {
587 struct snd_timer_id tid; /* requested timer ID */
588 unsigned long period_num; /* requested precise period duration (in seconds) - numerator */
589 unsigned long period_den; /* requested precise period duration (in seconds) - denominator */
590 unsigned char reserved[32];
591 };
592
593 struct snd_timer_gstatus {
594 struct snd_timer_id tid; /* requested timer ID */
595 unsigned long resolution; /* current period resolution in ns */
596 unsigned long resolution_num; /* precise current period resolution (in seconds) - numerator */
597 unsigned long resolution_den; /* precise current period resolution (in seconds) - denominator */
598 unsigned char reserved[32];
599 };
600
601 struct snd_timer_select {
602 struct snd_timer_id id; /* bind to timer ID */
603 unsigned char reserved[32]; /* reserved */
604 };
605
606 struct snd_timer_info {
607 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */
608 int card; /* card number */
609 unsigned char id[64]; /* timer identificator */
610 unsigned char name[80]; /* timer name */
611 unsigned long reserved0; /* reserved for future use */
612 unsigned long resolution; /* average period resolution in ns */
613 unsigned char reserved[64]; /* reserved */
614 };
615
616 #define SNDRV_TIMER_PSFLG_AUTO (1<<0) /* auto start, otherwise one-shot */
617 #define SNDRV_TIMER_PSFLG_EXCLUSIVE (1<<1) /* exclusive use, precise start/stop/pause/continue */
618 #define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2) /* write early event to the poll queue */
619
620 struct snd_timer_params {
621 unsigned int flags; /* flags - SNDRV_MIXER_PSFLG_* */
622 unsigned int ticks; /* requested resolution in ticks */
623 unsigned int queue_size; /* total size of queue (32-1024) */
624 unsigned int reserved0; /* reserved, was: failure locations */
625 unsigned int filter; /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */
626 unsigned char reserved[60]; /* reserved */
627 };
628
629 struct snd_timer_status {
630 struct timespec tstamp; /* Timestamp - last update */
631 unsigned int resolution; /* current period resolution in ns */
632 unsigned int lost; /* counter of master tick lost */
633 unsigned int overrun; /* count of read queue overruns */
634 unsigned int queue; /* used queue size */
635 unsigned char reserved[64]; /* reserved */
636 };
637
638 #define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int)
639 #define SNDRV_TIMER_IOCTL_NEXT_DEVICE _IOWR('T', 0x01, struct snd_timer_id)
640 #define SNDRV_TIMER_IOCTL_TREAD _IOW('T', 0x02, int)
641 #define SNDRV_TIMER_IOCTL_GINFO _IOWR('T', 0x03, struct snd_timer_ginfo)
642 #define SNDRV_TIMER_IOCTL_GPARAMS _IOW('T', 0x04, struct snd_timer_gparams)
643 #define SNDRV_TIMER_IOCTL_GSTATUS _IOWR('T', 0x05, struct snd_timer_gstatus)
644 #define SNDRV_TIMER_IOCTL_SELECT _IOW('T', 0x10, struct snd_timer_select)
645 #define SNDRV_TIMER_IOCTL_INFO _IOR('T', 0x11, struct snd_timer_info)
646 #define SNDRV_TIMER_IOCTL_PARAMS _IOW('T', 0x12, struct snd_timer_params)
647 #define SNDRV_TIMER_IOCTL_STATUS _IOR('T', 0x14, struct snd_timer_status)
648 /* The following four ioctls are changed since 1.0.9 due to confliction */
649 #define SNDRV_TIMER_IOCTL_START _IO('T', 0xa0)
650 #define SNDRV_TIMER_IOCTL_STOP _IO('T', 0xa1)
651 #define SNDRV_TIMER_IOCTL_CONTINUE _IO('T', 0xa2)
652 #define SNDRV_TIMER_IOCTL_PAUSE _IO('T', 0xa3)
653
654 struct snd_timer_read {
655 unsigned int resolution;
656 unsigned int ticks;
657 };
658
659 enum {
660 SNDRV_TIMER_EVENT_RESOLUTION = 0, /* val = resolution in ns */
661 SNDRV_TIMER_EVENT_TICK, /* val = ticks */
662 SNDRV_TIMER_EVENT_START, /* val = resolution in ns */
663 SNDRV_TIMER_EVENT_STOP, /* val = 0 */
664 SNDRV_TIMER_EVENT_CONTINUE, /* val = resolution in ns */
665 SNDRV_TIMER_EVENT_PAUSE, /* val = 0 */
666 SNDRV_TIMER_EVENT_EARLY, /* val = 0, early event */
667 SNDRV_TIMER_EVENT_SUSPEND, /* val = 0 */
668 SNDRV_TIMER_EVENT_RESUME, /* val = resolution in ns */
669 /* master timer events for slave timer instances */
670 SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10,
671 SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10,
672 SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10,
673 SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10,
674 SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10,
675 SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10,
676 };
677
678 struct snd_timer_tread {
679 int event;
680 struct timespec tstamp;
681 unsigned int val;
682 };
683
684 /****************************************************************************
685 * *
686 * Section for driver control interface - /dev/snd/control? *
687 * *
688 ****************************************************************************/
689
690 #define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 6)
691
692 struct snd_ctl_card_info {
693 int card; /* card number */
694 int pad; /* reserved for future (was type) */
695 unsigned char id[16]; /* ID of card (user selectable) */
696 unsigned char driver[16]; /* Driver name */
697 unsigned char name[32]; /* Short name of soundcard */
698 unsigned char longname[80]; /* name + info text about soundcard */
699 unsigned char reserved_[16]; /* reserved for future (was ID of mixer) */
700 unsigned char mixername[80]; /* visual mixer identification */
701 unsigned char components[128]; /* card components / fine identification, delimited with one space (AC97 etc..) */
702 };
703
704 typedef int __bitwise snd_ctl_elem_type_t;
705 #define SNDRV_CTL_ELEM_TYPE_NONE ((snd_ctl_elem_type_t) 0) /* invalid */
706 #define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((snd_ctl_elem_type_t) 1) /* boolean type */
707 #define SNDRV_CTL_ELEM_TYPE_INTEGER ((snd_ctl_elem_type_t) 2) /* integer type */
708 #define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((snd_ctl_elem_type_t) 3) /* enumerated type */
709 #define SNDRV_CTL_ELEM_TYPE_BYTES ((snd_ctl_elem_type_t) 4) /* byte array */
710 #define SNDRV_CTL_ELEM_TYPE_IEC958 ((snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */
711 #define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((snd_ctl_elem_type_t) 6) /* 64-bit integer type */
712 #define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64
713
714 typedef int __bitwise snd_ctl_elem_iface_t;
715 #define SNDRV_CTL_ELEM_IFACE_CARD ((snd_ctl_elem_iface_t) 0) /* global control */
716 #define SNDRV_CTL_ELEM_IFACE_HWDEP ((snd_ctl_elem_iface_t) 1) /* hardware dependent device */
717 #define SNDRV_CTL_ELEM_IFACE_MIXER ((snd_ctl_elem_iface_t) 2) /* virtual mixer device */
718 #define SNDRV_CTL_ELEM_IFACE_PCM ((snd_ctl_elem_iface_t) 3) /* PCM device */
719 #define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((snd_ctl_elem_iface_t) 4) /* RawMidi device */
720 #define SNDRV_CTL_ELEM_IFACE_TIMER ((snd_ctl_elem_iface_t) 5) /* timer device */
721 #define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((snd_ctl_elem_iface_t) 6) /* sequencer client */
722 #define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER
723
724 #define SNDRV_CTL_ELEM_ACCESS_READ (1<<0)
725 #define SNDRV_CTL_ELEM_ACCESS_WRITE (1<<1)
726 #define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE)
727 #define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1<<2) /* control value may be changed without a notification */
728 #define SNDRV_CTL_ELEM_ACCESS_TIMESTAMP (1<<3) /* when was control changed */
729 #define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1<<4) /* TLV read is possible */
730 #define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1<<5) /* TLV write is possible */
731 #define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE)
732 #define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1<<6) /* TLV command is possible */
733 #define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) /* control does actually nothing, but may be updated */
734 #define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) /* write lock */
735 #define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) /* write lock owner */
736 #define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1<<28) /* kernel use a TLV callback */
737 #define SNDRV_CTL_ELEM_ACCESS_USER (1<<29) /* user space element */
738 /* bits 30 and 31 are obsoleted (for indirect access) */
739
740 /* for further details see the ACPI and PCI power management specification */
741 #define SNDRV_CTL_POWER_D0 0x0000 /* full On */
742 #define SNDRV_CTL_POWER_D1 0x0100 /* partial On */
743 #define SNDRV_CTL_POWER_D2 0x0200 /* partial On */
744 #define SNDRV_CTL_POWER_D3 0x0300 /* Off */
745 #define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) /* Off, with power */
746 #define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) /* Off, without power */
747
748 struct snd_ctl_elem_id {
749 unsigned int numid; /* numeric identifier, zero = invalid */
750 snd_ctl_elem_iface_t iface; /* interface identifier */
751 unsigned int device; /* device/client number */
752 unsigned int subdevice; /* subdevice (substream) number */
753 unsigned char name[44]; /* ASCII name of item */
754 unsigned int index; /* index of item */
755 };
756
757 struct snd_ctl_elem_list {
758 unsigned int offset; /* W: first element ID to get */
759 unsigned int space; /* W: count of element IDs to get */
760 unsigned int used; /* R: count of element IDs set */
761 unsigned int count; /* R: count of all elements */
762 struct snd_ctl_elem_id *pids; /* R: IDs */
763 unsigned char reserved[50];
764 };
765
766 struct snd_ctl_elem_info {
767 struct snd_ctl_elem_id id; /* W: element ID */
768 snd_ctl_elem_type_t type; /* R: value type - SNDRV_CTL_ELEM_TYPE_* */
769 unsigned int access; /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */
770 unsigned int count; /* count of values */
771 __kernel_pid_t owner; /* owner's PID of this control */
772 union {
773 struct {
774 long min; /* R: minimum value */
775 long max; /* R: maximum value */
776 long step; /* R: step (0 variable) */
777 } integer;
778 struct {
779 long long min; /* R: minimum value */
780 long long max; /* R: maximum value */
781 long long step; /* R: step (0 variable) */
782 } integer64;
783 struct {
784 unsigned int items; /* R: number of items */
785 unsigned int item; /* W: item number */
786 char name[64]; /* R: value name */
787 } enumerated;
788 unsigned char reserved[128];
789 } value;
790 union {
791 unsigned short d[4]; /* dimensions */
792 unsigned short *d_ptr; /* indirect - obsoleted */
793 } dimen;
794 unsigned char reserved[64-4*sizeof(unsigned short)];
795 };
796
797 struct snd_ctl_elem_value {
798 struct snd_ctl_elem_id id; /* W: element ID */
799 unsigned int indirect: 1; /* W: indirect access - obsoleted */
800 union {
801 union {
802 long value[128];
803 long *value_ptr; /* obsoleted */
804 } integer;
805 union {
806 long long value[64];
807 long long *value_ptr; /* obsoleted */
808 } integer64;
809 union {
810 unsigned int item[128];
811 unsigned int *item_ptr; /* obsoleted */
812 } enumerated;
813 union {
814 unsigned char data[512];
815 unsigned char *data_ptr; /* obsoleted */
816 } bytes;
817 struct snd_aes_iec958 iec958;
818 } value; /* RO */
819 struct timespec tstamp;
820 unsigned char reserved[128-sizeof(struct timespec)];
821 };
822
823 struct snd_ctl_tlv {
824 unsigned int numid; /* control element numeric identification */
825 unsigned int length; /* in bytes aligned to 4 */
826 unsigned int tlv[0]; /* first TLV */
827 };
828
829 #define SNDRV_CTL_IOCTL_PVERSION _IOR('U', 0x00, int)
830 #define SNDRV_CTL_IOCTL_CARD_INFO _IOR('U', 0x01, struct snd_ctl_card_info)
831 #define SNDRV_CTL_IOCTL_ELEM_LIST _IOWR('U', 0x10, struct snd_ctl_elem_list)
832 #define SNDRV_CTL_IOCTL_ELEM_INFO _IOWR('U', 0x11, struct snd_ctl_elem_info)
833 #define SNDRV_CTL_IOCTL_ELEM_READ _IOWR('U', 0x12, struct snd_ctl_elem_value)
834 #define SNDRV_CTL_IOCTL_ELEM_WRITE _IOWR('U', 0x13, struct snd_ctl_elem_value)
835 #define SNDRV_CTL_IOCTL_ELEM_LOCK _IOW('U', 0x14, struct snd_ctl_elem_id)
836 #define SNDRV_CTL_IOCTL_ELEM_UNLOCK _IOW('U', 0x15, struct snd_ctl_elem_id)
837 #define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int)
838 #define SNDRV_CTL_IOCTL_ELEM_ADD _IOWR('U', 0x17, struct snd_ctl_elem_info)
839 #define SNDRV_CTL_IOCTL_ELEM_REPLACE _IOWR('U', 0x18, struct snd_ctl_elem_info)
840 #define SNDRV_CTL_IOCTL_ELEM_REMOVE _IOWR('U', 0x19, struct snd_ctl_elem_id)
841 #define SNDRV_CTL_IOCTL_TLV_READ _IOWR('U', 0x1a, struct snd_ctl_tlv)
842 #define SNDRV_CTL_IOCTL_TLV_WRITE _IOWR('U', 0x1b, struct snd_ctl_tlv)
843 #define SNDRV_CTL_IOCTL_TLV_COMMAND _IOWR('U', 0x1c, struct snd_ctl_tlv)
844 #define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int)
845 #define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info)
846 #define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int)
847 #define SNDRV_CTL_IOCTL_PCM_INFO _IOWR('U', 0x31, struct snd_pcm_info)
848 #define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int)
849 #define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int)
850 #define SNDRV_CTL_IOCTL_RAWMIDI_INFO _IOWR('U', 0x41, struct snd_rawmidi_info)
851 #define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int)
852 #define SNDRV_CTL_IOCTL_POWER _IOWR('U', 0xd0, int)
853 #define SNDRV_CTL_IOCTL_POWER_STATE _IOR('U', 0xd1, int)
854
855 /*
856 * Read interface.
857 */
858
859 enum sndrv_ctl_event_type {
860 SNDRV_CTL_EVENT_ELEM = 0,
861 SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM,
862 };
863
864 #define SNDRV_CTL_EVENT_MASK_VALUE (1<<0) /* element value was changed */
865 #define SNDRV_CTL_EVENT_MASK_INFO (1<<1) /* element info was changed */
866 #define SNDRV_CTL_EVENT_MASK_ADD (1<<2) /* element was added */
867 #define SNDRV_CTL_EVENT_MASK_TLV (1<<3) /* element TLV tree was changed */
868 #define SNDRV_CTL_EVENT_MASK_REMOVE (~0U) /* element was removed */
869
870 struct snd_ctl_event {
871 int type; /* event type - SNDRV_CTL_EVENT_* */
872 union {
873 struct {
874 unsigned int mask;
875 struct snd_ctl_elem_id id;
876 } elem;
877 unsigned char data8[60];
878 } data;
879 };
880
881 /*
882 * Control names
883 */
884
885 #define SNDRV_CTL_NAME_NONE ""
886 #define SNDRV_CTL_NAME_PLAYBACK "Playback "
887 #define SNDRV_CTL_NAME_CAPTURE "Capture "
888
889 #define SNDRV_CTL_NAME_IEC958_NONE ""
890 #define SNDRV_CTL_NAME_IEC958_SWITCH "Switch"
891 #define SNDRV_CTL_NAME_IEC958_VOLUME "Volume"
892 #define SNDRV_CTL_NAME_IEC958_DEFAULT "Default"
893 #define SNDRV_CTL_NAME_IEC958_MASK "Mask"
894 #define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask"
895 #define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask"
896 #define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream"
897 #define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what
898
899 #endif /* __SOUND_ASOUND_H */
Tomato firmware and modifications.