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1 /****************************************************************************
2  ****************************************************************************
3  ***
4  ***   This header was automatically generated from a Linux kernel header
5  ***   of the same name, to make information necessary for userspace to
6  ***   call into the kernel available to libc.  It contains only constants,
7  ***   structures, and macros generated from the original header, and thus,
8  ***   contains no copyrightable information.
9  ***
10  ***   To edit the content of this header, modify the corresponding
11  ***   source file (e.g. under external/kernel-headers/original/) then
12  ***   run bionic/libc/kernel/tools/update_all.py
13  ***
14  ***   Any manual change here will be lost the next time this script will
15  ***   be run. You've been warned!
16  ***
17  ****************************************************************************
18  ****************************************************************************/
19 #ifndef _UAPI__SOUND_ASOUND_H
20 #define _UAPI__SOUND_ASOUND_H
21 #ifdef __linux__
22 #include <linux/types.h>
23 #else
24 #include <sys/ioctl.h>
25 #endif
26 #include <stdlib.h>
27 #define SNDRV_PROTOCOL_VERSION(major,minor,subminor) (((major) << 16) | ((minor) << 8) | (subminor))
28 #define SNDRV_PROTOCOL_MAJOR(version) (((version) >> 16) & 0xffff)
29 #define SNDRV_PROTOCOL_MINOR(version) (((version) >> 8) & 0xff)
30 #define SNDRV_PROTOCOL_MICRO(version) ((version) & 0xff)
31 #define SNDRV_PROTOCOL_INCOMPATIBLE(kversion,uversion) (SNDRV_PROTOCOL_MAJOR(kversion) != SNDRV_PROTOCOL_MAJOR(uversion) || (SNDRV_PROTOCOL_MAJOR(kversion) == SNDRV_PROTOCOL_MAJOR(uversion) && SNDRV_PROTOCOL_MINOR(kversion) != SNDRV_PROTOCOL_MINOR(uversion)))
32 struct snd_aes_iec958 {
33   unsigned char status[24];
34   unsigned char subcode[147];
35   unsigned char pad;
36   unsigned char dig_subframe[4];
37 };
38 struct snd_cea_861_aud_if {
39   unsigned char db1_ct_cc;
40   unsigned char db2_sf_ss;
41   unsigned char db3;
42   unsigned char db4_ca;
43   unsigned char db5_dminh_lsv;
44 };
45 #define SNDRV_HWDEP_VERSION SNDRV_PROTOCOL_VERSION(1, 0, 1)
46 enum {
47   SNDRV_HWDEP_IFACE_OPL2 = 0,
48   SNDRV_HWDEP_IFACE_OPL3,
49   SNDRV_HWDEP_IFACE_OPL4,
50   SNDRV_HWDEP_IFACE_SB16CSP,
51   SNDRV_HWDEP_IFACE_EMU10K1,
52   SNDRV_HWDEP_IFACE_YSS225,
53   SNDRV_HWDEP_IFACE_ICS2115,
54   SNDRV_HWDEP_IFACE_SSCAPE,
55   SNDRV_HWDEP_IFACE_VX,
56   SNDRV_HWDEP_IFACE_MIXART,
57   SNDRV_HWDEP_IFACE_USX2Y,
58   SNDRV_HWDEP_IFACE_EMUX_WAVETABLE,
59   SNDRV_HWDEP_IFACE_BLUETOOTH,
60   SNDRV_HWDEP_IFACE_USX2Y_PCM,
61   SNDRV_HWDEP_IFACE_PCXHR,
62   SNDRV_HWDEP_IFACE_SB_RC,
63   SNDRV_HWDEP_IFACE_HDA,
64   SNDRV_HWDEP_IFACE_USB_STREAM,
65   SNDRV_HWDEP_IFACE_FW_DICE,
66   SNDRV_HWDEP_IFACE_FW_FIREWORKS,
67   SNDRV_HWDEP_IFACE_FW_BEBOB,
68   SNDRV_HWDEP_IFACE_FW_OXFW,
69   SNDRV_HWDEP_IFACE_FW_DIGI00X,
70   SNDRV_HWDEP_IFACE_FW_TASCAM,
71   SNDRV_HWDEP_IFACE_LINE6,
72   SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_LINE6
73 };
74 struct snd_hwdep_info {
75   unsigned int device;
76   int card;
77   unsigned char id[64];
78   unsigned char name[80];
79   int iface;
80   unsigned char reserved[64];
81 };
82 struct snd_hwdep_dsp_status {
83   unsigned int version;
84   unsigned char id[32];
85   unsigned int num_dsps;
86   unsigned int dsp_loaded;
87   unsigned int chip_ready;
88   unsigned char reserved[16];
89 };
90 struct snd_hwdep_dsp_image {
91   unsigned int index;
92   unsigned char name[64];
93   unsigned char __user * image;
94   size_t length;
95   unsigned long driver_data;
96 };
97 #define SNDRV_HWDEP_IOCTL_PVERSION _IOR('H', 0x00, int)
98 #define SNDRV_HWDEP_IOCTL_INFO _IOR('H', 0x01, struct snd_hwdep_info)
99 #define SNDRV_HWDEP_IOCTL_DSP_STATUS _IOR('H', 0x02, struct snd_hwdep_dsp_status)
100 #define SNDRV_HWDEP_IOCTL_DSP_LOAD _IOW('H', 0x03, struct snd_hwdep_dsp_image)
101 #define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 13)
102 typedef unsigned long snd_pcm_uframes_t;
103 typedef signed long snd_pcm_sframes_t;
104 enum {
105   SNDRV_PCM_CLASS_GENERIC = 0,
106   SNDRV_PCM_CLASS_MULTI,
107   SNDRV_PCM_CLASS_MODEM,
108   SNDRV_PCM_CLASS_DIGITIZER,
109   SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER,
110 };
111 enum {
112   SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0,
113   SNDRV_PCM_SUBCLASS_MULTI_MIX,
114   SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX,
115 };
116 enum {
117   SNDRV_PCM_STREAM_PLAYBACK = 0,
118   SNDRV_PCM_STREAM_CAPTURE,
119   SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE,
120 };
121 typedef int __bitwise snd_pcm_access_t;
122 #define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED ((__force snd_pcm_access_t) 0)
123 #define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED ((__force snd_pcm_access_t) 1)
124 #define SNDRV_PCM_ACCESS_MMAP_COMPLEX ((__force snd_pcm_access_t) 2)
125 #define SNDRV_PCM_ACCESS_RW_INTERLEAVED ((__force snd_pcm_access_t) 3)
126 #define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED ((__force snd_pcm_access_t) 4)
127 #define SNDRV_PCM_ACCESS_LAST SNDRV_PCM_ACCESS_RW_NONINTERLEAVED
128 typedef int __bitwise snd_pcm_format_t;
129 #define SNDRV_PCM_FORMAT_S8 ((__force snd_pcm_format_t) 0)
130 #define SNDRV_PCM_FORMAT_U8 ((__force snd_pcm_format_t) 1)
131 #define SNDRV_PCM_FORMAT_S16_LE ((__force snd_pcm_format_t) 2)
132 #define SNDRV_PCM_FORMAT_S16_BE ((__force snd_pcm_format_t) 3)
133 #define SNDRV_PCM_FORMAT_U16_LE ((__force snd_pcm_format_t) 4)
134 #define SNDRV_PCM_FORMAT_U16_BE ((__force snd_pcm_format_t) 5)
135 #define SNDRV_PCM_FORMAT_S24_LE ((__force snd_pcm_format_t) 6)
136 #define SNDRV_PCM_FORMAT_S24_BE ((__force snd_pcm_format_t) 7)
137 #define SNDRV_PCM_FORMAT_U24_LE ((__force snd_pcm_format_t) 8)
138 #define SNDRV_PCM_FORMAT_U24_BE ((__force snd_pcm_format_t) 9)
139 #define SNDRV_PCM_FORMAT_S32_LE ((__force snd_pcm_format_t) 10)
140 #define SNDRV_PCM_FORMAT_S32_BE ((__force snd_pcm_format_t) 11)
141 #define SNDRV_PCM_FORMAT_U32_LE ((__force snd_pcm_format_t) 12)
142 #define SNDRV_PCM_FORMAT_U32_BE ((__force snd_pcm_format_t) 13)
143 #define SNDRV_PCM_FORMAT_FLOAT_LE ((__force snd_pcm_format_t) 14)
144 #define SNDRV_PCM_FORMAT_FLOAT_BE ((__force snd_pcm_format_t) 15)
145 #define SNDRV_PCM_FORMAT_FLOAT64_LE ((__force snd_pcm_format_t) 16)
146 #define SNDRV_PCM_FORMAT_FLOAT64_BE ((__force snd_pcm_format_t) 17)
147 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((__force snd_pcm_format_t) 18)
148 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((__force snd_pcm_format_t) 19)
149 #define SNDRV_PCM_FORMAT_MU_LAW ((__force snd_pcm_format_t) 20)
150 #define SNDRV_PCM_FORMAT_A_LAW ((__force snd_pcm_format_t) 21)
151 #define SNDRV_PCM_FORMAT_IMA_ADPCM ((__force snd_pcm_format_t) 22)
152 #define SNDRV_PCM_FORMAT_MPEG ((__force snd_pcm_format_t) 23)
153 #define SNDRV_PCM_FORMAT_GSM ((__force snd_pcm_format_t) 24)
154 #define SNDRV_PCM_FORMAT_SPECIAL ((__force snd_pcm_format_t) 31)
155 #define SNDRV_PCM_FORMAT_S24_3LE ((__force snd_pcm_format_t) 32)
156 #define SNDRV_PCM_FORMAT_S24_3BE ((__force snd_pcm_format_t) 33)
157 #define SNDRV_PCM_FORMAT_U24_3LE ((__force snd_pcm_format_t) 34)
158 #define SNDRV_PCM_FORMAT_U24_3BE ((__force snd_pcm_format_t) 35)
159 #define SNDRV_PCM_FORMAT_S20_3LE ((__force snd_pcm_format_t) 36)
160 #define SNDRV_PCM_FORMAT_S20_3BE ((__force snd_pcm_format_t) 37)
161 #define SNDRV_PCM_FORMAT_U20_3LE ((__force snd_pcm_format_t) 38)
162 #define SNDRV_PCM_FORMAT_U20_3BE ((__force snd_pcm_format_t) 39)
163 #define SNDRV_PCM_FORMAT_S18_3LE ((__force snd_pcm_format_t) 40)
164 #define SNDRV_PCM_FORMAT_S18_3BE ((__force snd_pcm_format_t) 41)
165 #define SNDRV_PCM_FORMAT_U18_3LE ((__force snd_pcm_format_t) 42)
166 #define SNDRV_PCM_FORMAT_U18_3BE ((__force snd_pcm_format_t) 43)
167 #define SNDRV_PCM_FORMAT_G723_24 ((__force snd_pcm_format_t) 44)
168 #define SNDRV_PCM_FORMAT_G723_24_1B ((__force snd_pcm_format_t) 45)
169 #define SNDRV_PCM_FORMAT_G723_40 ((__force snd_pcm_format_t) 46)
170 #define SNDRV_PCM_FORMAT_G723_40_1B ((__force snd_pcm_format_t) 47)
171 #define SNDRV_PCM_FORMAT_DSD_U8 ((__force snd_pcm_format_t) 48)
172 #define SNDRV_PCM_FORMAT_DSD_U16_LE ((__force snd_pcm_format_t) 49)
173 #define SNDRV_PCM_FORMAT_DSD_U32_LE ((__force snd_pcm_format_t) 50)
174 #define SNDRV_PCM_FORMAT_DSD_U16_BE ((__force snd_pcm_format_t) 51)
175 #define SNDRV_PCM_FORMAT_DSD_U32_BE ((__force snd_pcm_format_t) 52)
176 #define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_DSD_U32_BE
177 #ifdef SNDRV_LITTLE_ENDIAN
178 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE
179 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE
180 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE
181 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE
182 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE
183 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE
184 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE
185 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE
186 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE
187 #endif
188 #ifdef SNDRV_BIG_ENDIAN
189 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE
190 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE
191 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE
192 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE
193 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE
194 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE
195 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE
196 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE
197 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE
198 #endif
199 typedef int __bitwise snd_pcm_subformat_t;
200 #define SNDRV_PCM_SUBFORMAT_STD ((__force snd_pcm_subformat_t) 0)
201 #define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_STD
202 #define SNDRV_PCM_INFO_MMAP 0x00000001
203 #define SNDRV_PCM_INFO_MMAP_VALID 0x00000002
204 #define SNDRV_PCM_INFO_DOUBLE 0x00000004
205 #define SNDRV_PCM_INFO_BATCH 0x00000010
206 #define SNDRV_PCM_INFO_INTERLEAVED 0x00000100
207 #define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200
208 #define SNDRV_PCM_INFO_COMPLEX 0x00000400
209 #define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000
210 #define SNDRV_PCM_INFO_OVERRANGE 0x00020000
211 #define SNDRV_PCM_INFO_RESUME 0x00040000
212 #define SNDRV_PCM_INFO_PAUSE 0x00080000
213 #define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000
214 #define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000
215 #define SNDRV_PCM_INFO_SYNC_START 0x00400000
216 #define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP 0x00800000
217 #define SNDRV_PCM_INFO_HAS_WALL_CLOCK 0x01000000
218 #define SNDRV_PCM_INFO_HAS_LINK_ATIME 0x01000000
219 #define SNDRV_PCM_INFO_HAS_LINK_ABSOLUTE_ATIME 0x02000000
220 #define SNDRV_PCM_INFO_HAS_LINK_ESTIMATED_ATIME 0x04000000
221 #define SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME 0x08000000
222 #define SNDRV_PCM_INFO_DRAIN_TRIGGER 0x40000000
223 #define SNDRV_PCM_INFO_FIFO_IN_FRAMES 0x80000000
224 typedef int __bitwise snd_pcm_state_t;
225 #define SNDRV_PCM_STATE_OPEN ((__force snd_pcm_state_t) 0)
226 #define SNDRV_PCM_STATE_SETUP ((__force snd_pcm_state_t) 1)
227 #define SNDRV_PCM_STATE_PREPARED ((__force snd_pcm_state_t) 2)
228 #define SNDRV_PCM_STATE_RUNNING ((__force snd_pcm_state_t) 3)
229 #define SNDRV_PCM_STATE_XRUN ((__force snd_pcm_state_t) 4)
230 #define SNDRV_PCM_STATE_DRAINING ((__force snd_pcm_state_t) 5)
231 #define SNDRV_PCM_STATE_PAUSED ((__force snd_pcm_state_t) 6)
232 #define SNDRV_PCM_STATE_SUSPENDED ((__force snd_pcm_state_t) 7)
233 #define SNDRV_PCM_STATE_DISCONNECTED ((__force snd_pcm_state_t) 8)
234 #define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED
235 enum {
236   SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000,
237   SNDRV_PCM_MMAP_OFFSET_STATUS = 0x80000000,
238   SNDRV_PCM_MMAP_OFFSET_CONTROL = 0x81000000,
239 };
240 union snd_pcm_sync_id {
241   unsigned char id[16];
242   unsigned short id16[8];
243   unsigned int id32[4];
244 };
245 struct snd_pcm_info {
246   unsigned int device;
247   unsigned int subdevice;
248   int stream;
249   int card;
250   unsigned char id[64];
251   unsigned char name[80];
252   unsigned char subname[32];
253   int dev_class;
254   int dev_subclass;
255   unsigned int subdevices_count;
256   unsigned int subdevices_avail;
257   union snd_pcm_sync_id sync;
258   unsigned char reserved[64];
259 };
260 typedef int snd_pcm_hw_param_t;
261 #define SNDRV_PCM_HW_PARAM_ACCESS 0
262 #define SNDRV_PCM_HW_PARAM_FORMAT 1
263 #define SNDRV_PCM_HW_PARAM_SUBFORMAT 2
264 #define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS
265 #define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT
266 #define SNDRV_PCM_HW_PARAM_SAMPLE_BITS 8
267 #define SNDRV_PCM_HW_PARAM_FRAME_BITS 9
268 #define SNDRV_PCM_HW_PARAM_CHANNELS 10
269 #define SNDRV_PCM_HW_PARAM_RATE 11
270 #define SNDRV_PCM_HW_PARAM_PERIOD_TIME 12
271 #define SNDRV_PCM_HW_PARAM_PERIOD_SIZE 13
272 #define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14
273 #define SNDRV_PCM_HW_PARAM_PERIODS 15
274 #define SNDRV_PCM_HW_PARAM_BUFFER_TIME 16
275 #define SNDRV_PCM_HW_PARAM_BUFFER_SIZE 17
276 #define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18
277 #define SNDRV_PCM_HW_PARAM_TICK_TIME 19
278 #define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS
279 #define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME
280 #define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1 << 0)
281 #define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER (1 << 1)
282 #define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP (1 << 2)
283 struct snd_interval {
284   unsigned int min, max;
285   unsigned int openmin : 1, openmax : 1, integer : 1, empty : 1;
286 };
287 #define SNDRV_MASK_MAX 256
288 struct snd_mask {
289   __u32 bits[(SNDRV_MASK_MAX + 31) / 32];
290 };
291 struct snd_pcm_hw_params {
292   unsigned int flags;
293   struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - SNDRV_PCM_HW_PARAM_FIRST_MASK + 1];
294   struct snd_mask mres[5];
295   struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1];
296   struct snd_interval ires[9];
297   unsigned int rmask;
298   unsigned int cmask;
299   unsigned int info;
300   unsigned int msbits;
301   unsigned int rate_num;
302   unsigned int rate_den;
303   snd_pcm_uframes_t fifo_size;
304   unsigned char reserved[64];
305 };
306 enum {
307   SNDRV_PCM_TSTAMP_NONE = 0,
308   SNDRV_PCM_TSTAMP_ENABLE,
309   SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE,
310 };
311 struct snd_pcm_sw_params {
312   int tstamp_mode;
313   unsigned int period_step;
314   unsigned int sleep_min;
315   snd_pcm_uframes_t avail_min;
316   snd_pcm_uframes_t xfer_align;
317   snd_pcm_uframes_t start_threshold;
318   snd_pcm_uframes_t stop_threshold;
319   snd_pcm_uframes_t silence_threshold;
320   snd_pcm_uframes_t silence_size;
321   snd_pcm_uframes_t boundary;
322   unsigned int proto;
323   unsigned int tstamp_type;
324   unsigned char reserved[56];
325 };
326 struct snd_pcm_channel_info {
327   unsigned int channel;
328   __kernel_off_t offset;
329   unsigned int first;
330   unsigned int step;
331 };
332 enum {
333   SNDRV_PCM_AUDIO_TSTAMP_TYPE_COMPAT = 0,
334   SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT = 1,
335   SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK = 2,
336   SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE = 3,
337   SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED = 4,
338   SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED = 5,
339   SNDRV_PCM_AUDIO_TSTAMP_TYPE_LAST = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED
340 };
341 struct snd_pcm_status {
342   snd_pcm_state_t state;
343   struct timespec trigger_tstamp;
344   struct timespec tstamp;
345   snd_pcm_uframes_t appl_ptr;
346   snd_pcm_uframes_t hw_ptr;
347   snd_pcm_sframes_t delay;
348   snd_pcm_uframes_t avail;
349   snd_pcm_uframes_t avail_max;
350   snd_pcm_uframes_t overrange;
351   snd_pcm_state_t suspended_state;
352   __u32 audio_tstamp_data;
353   struct timespec audio_tstamp;
354   struct timespec driver_tstamp;
355   __u32 audio_tstamp_accuracy;
356   unsigned char reserved[52 - 2 * sizeof(struct timespec)];
357 };
358 struct snd_pcm_mmap_status {
359   snd_pcm_state_t state;
360   int pad1;
361   snd_pcm_uframes_t hw_ptr;
362   struct timespec tstamp;
363   snd_pcm_state_t suspended_state;
364   struct timespec audio_tstamp;
365 };
366 struct snd_pcm_mmap_control {
367   snd_pcm_uframes_t appl_ptr;
368   snd_pcm_uframes_t avail_min;
369 };
370 #define SNDRV_PCM_SYNC_PTR_HWSYNC (1 << 0)
371 #define SNDRV_PCM_SYNC_PTR_APPL (1 << 1)
372 #define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1 << 2)
373 struct snd_pcm_sync_ptr {
374   unsigned int flags;
375   union {
376     struct snd_pcm_mmap_status status;
377     unsigned char reserved[64];
378   } s;
379   union {
380     struct snd_pcm_mmap_control control;
381     unsigned char reserved[64];
382   } c;
383 };
384 struct snd_xferi {
385   snd_pcm_sframes_t result;
386   void __user * buf;
387   snd_pcm_uframes_t frames;
388 };
389 struct snd_xfern {
390   snd_pcm_sframes_t result;
391   void __user * __user * bufs;
392   snd_pcm_uframes_t frames;
393 };
394 enum {
395   SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0,
396   SNDRV_PCM_TSTAMP_TYPE_MONOTONIC,
397   SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW,
398   SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW,
399 };
400 enum {
401   SNDRV_CHMAP_UNKNOWN = 0,
402   SNDRV_CHMAP_NA,
403   SNDRV_CHMAP_MONO,
404   SNDRV_CHMAP_FL,
405   SNDRV_CHMAP_FR,
406   SNDRV_CHMAP_RL,
407   SNDRV_CHMAP_RR,
408   SNDRV_CHMAP_FC,
409   SNDRV_CHMAP_LFE,
410   SNDRV_CHMAP_SL,
411   SNDRV_CHMAP_SR,
412   SNDRV_CHMAP_RC,
413   SNDRV_CHMAP_FLC,
414   SNDRV_CHMAP_FRC,
415   SNDRV_CHMAP_RLC,
416   SNDRV_CHMAP_RRC,
417   SNDRV_CHMAP_FLW,
418   SNDRV_CHMAP_FRW,
419   SNDRV_CHMAP_FLH,
420   SNDRV_CHMAP_FCH,
421   SNDRV_CHMAP_FRH,
422   SNDRV_CHMAP_TC,
423   SNDRV_CHMAP_TFL,
424   SNDRV_CHMAP_TFR,
425   SNDRV_CHMAP_TFC,
426   SNDRV_CHMAP_TRL,
427   SNDRV_CHMAP_TRR,
428   SNDRV_CHMAP_TRC,
429   SNDRV_CHMAP_TFLC,
430   SNDRV_CHMAP_TFRC,
431   SNDRV_CHMAP_TSL,
432   SNDRV_CHMAP_TSR,
433   SNDRV_CHMAP_LLFE,
434   SNDRV_CHMAP_RLFE,
435   SNDRV_CHMAP_BC,
436   SNDRV_CHMAP_BLC,
437   SNDRV_CHMAP_BRC,
438   SNDRV_CHMAP_LAST = SNDRV_CHMAP_BRC,
439 };
440 #define SNDRV_CHMAP_POSITION_MASK 0xffff
441 #define SNDRV_CHMAP_PHASE_INVERSE (0x01 << 16)
442 #define SNDRV_CHMAP_DRIVER_SPEC (0x02 << 16)
443 #define SNDRV_PCM_IOCTL_PVERSION _IOR('A', 0x00, int)
444 #define SNDRV_PCM_IOCTL_INFO _IOR('A', 0x01, struct snd_pcm_info)
445 #define SNDRV_PCM_IOCTL_TSTAMP _IOW('A', 0x02, int)
446 #define SNDRV_PCM_IOCTL_TTSTAMP _IOW('A', 0x03, int)
447 #define SNDRV_PCM_IOCTL_HW_REFINE _IOWR('A', 0x10, struct snd_pcm_hw_params)
448 #define SNDRV_PCM_IOCTL_HW_PARAMS _IOWR('A', 0x11, struct snd_pcm_hw_params)
449 #define SNDRV_PCM_IOCTL_HW_FREE _IO('A', 0x12)
450 #define SNDRV_PCM_IOCTL_SW_PARAMS _IOWR('A', 0x13, struct snd_pcm_sw_params)
451 #define SNDRV_PCM_IOCTL_STATUS _IOR('A', 0x20, struct snd_pcm_status)
452 #define SNDRV_PCM_IOCTL_DELAY _IOR('A', 0x21, snd_pcm_sframes_t)
453 #define SNDRV_PCM_IOCTL_HWSYNC _IO('A', 0x22)
454 #define SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct snd_pcm_sync_ptr)
455 #define SNDRV_PCM_IOCTL_STATUS_EXT _IOWR('A', 0x24, struct snd_pcm_status)
456 #define SNDRV_PCM_IOCTL_CHANNEL_INFO _IOR('A', 0x32, struct snd_pcm_channel_info)
457 #define SNDRV_PCM_IOCTL_PREPARE _IO('A', 0x40)
458 #define SNDRV_PCM_IOCTL_RESET _IO('A', 0x41)
459 #define SNDRV_PCM_IOCTL_START _IO('A', 0x42)
460 #define SNDRV_PCM_IOCTL_DROP _IO('A', 0x43)
461 #define SNDRV_PCM_IOCTL_DRAIN _IO('A', 0x44)
462 #define SNDRV_PCM_IOCTL_PAUSE _IOW('A', 0x45, int)
463 #define SNDRV_PCM_IOCTL_REWIND _IOW('A', 0x46, snd_pcm_uframes_t)
464 #define SNDRV_PCM_IOCTL_RESUME _IO('A', 0x47)
465 #define SNDRV_PCM_IOCTL_XRUN _IO('A', 0x48)
466 #define SNDRV_PCM_IOCTL_FORWARD _IOW('A', 0x49, snd_pcm_uframes_t)
467 #define SNDRV_PCM_IOCTL_WRITEI_FRAMES _IOW('A', 0x50, struct snd_xferi)
468 #define SNDRV_PCM_IOCTL_READI_FRAMES _IOR('A', 0x51, struct snd_xferi)
469 #define SNDRV_PCM_IOCTL_WRITEN_FRAMES _IOW('A', 0x52, struct snd_xfern)
470 #define SNDRV_PCM_IOCTL_READN_FRAMES _IOR('A', 0x53, struct snd_xfern)
471 #define SNDRV_PCM_IOCTL_LINK _IOW('A', 0x60, int)
472 #define SNDRV_PCM_IOCTL_UNLINK _IO('A', 0x61)
473 #define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 0)
474 enum {
475   SNDRV_RAWMIDI_STREAM_OUTPUT = 0,
476   SNDRV_RAWMIDI_STREAM_INPUT,
477   SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT,
478 };
479 #define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001
480 #define SNDRV_RAWMIDI_INFO_INPUT 0x00000002
481 #define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004
482 struct snd_rawmidi_info {
483   unsigned int device;
484   unsigned int subdevice;
485   int stream;
486   int card;
487   unsigned int flags;
488   unsigned char id[64];
489   unsigned char name[80];
490   unsigned char subname[32];
491   unsigned int subdevices_count;
492   unsigned int subdevices_avail;
493   unsigned char reserved[64];
494 };
495 struct snd_rawmidi_params {
496   int stream;
497   size_t buffer_size;
498   size_t avail_min;
499   unsigned int no_active_sensing : 1;
500   unsigned char reserved[16];
501 };
502 struct snd_rawmidi_status {
503   int stream;
504   struct timespec tstamp;
505   size_t avail;
506   size_t xruns;
507   unsigned char reserved[16];
508 };
509 #define SNDRV_RAWMIDI_IOCTL_PVERSION _IOR('W', 0x00, int)
510 #define SNDRV_RAWMIDI_IOCTL_INFO _IOR('W', 0x01, struct snd_rawmidi_info)
511 #define SNDRV_RAWMIDI_IOCTL_PARAMS _IOWR('W', 0x10, struct snd_rawmidi_params)
512 #define SNDRV_RAWMIDI_IOCTL_STATUS _IOWR('W', 0x20, struct snd_rawmidi_status)
513 #define SNDRV_RAWMIDI_IOCTL_DROP _IOW('W', 0x30, int)
514 #define SNDRV_RAWMIDI_IOCTL_DRAIN _IOW('W', 0x31, int)
515 #define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 6)
516 enum {
517   SNDRV_TIMER_CLASS_NONE = - 1,
518   SNDRV_TIMER_CLASS_SLAVE = 0,
519   SNDRV_TIMER_CLASS_GLOBAL,
520   SNDRV_TIMER_CLASS_CARD,
521   SNDRV_TIMER_CLASS_PCM,
522   SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM,
523 };
524 enum {
525   SNDRV_TIMER_SCLASS_NONE = 0,
526   SNDRV_TIMER_SCLASS_APPLICATION,
527   SNDRV_TIMER_SCLASS_SEQUENCER,
528   SNDRV_TIMER_SCLASS_OSS_SEQUENCER,
529   SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER,
530 };
531 #define SNDRV_TIMER_GLOBAL_SYSTEM 0
532 #define SNDRV_TIMER_GLOBAL_RTC 1
533 #define SNDRV_TIMER_GLOBAL_HPET 2
534 #define SNDRV_TIMER_GLOBAL_HRTIMER 3
535 #define SNDRV_TIMER_FLG_SLAVE (1 << 0)
536 struct snd_timer_id {
537   int dev_class;
538   int dev_sclass;
539   int card;
540   int device;
541   int subdevice;
542 };
543 struct snd_timer_ginfo {
544   struct snd_timer_id tid;
545   unsigned int flags;
546   int card;
547   unsigned char id[64];
548   unsigned char name[80];
549   unsigned long reserved0;
550   unsigned long resolution;
551   unsigned long resolution_min;
552   unsigned long resolution_max;
553   unsigned int clients;
554   unsigned char reserved[32];
555 };
556 struct snd_timer_gparams {
557   struct snd_timer_id tid;
558   unsigned long period_num;
559   unsigned long period_den;
560   unsigned char reserved[32];
561 };
562 struct snd_timer_gstatus {
563   struct snd_timer_id tid;
564   unsigned long resolution;
565   unsigned long resolution_num;
566   unsigned long resolution_den;
567   unsigned char reserved[32];
568 };
569 struct snd_timer_select {
570   struct snd_timer_id id;
571   unsigned char reserved[32];
572 };
573 struct snd_timer_info {
574   unsigned int flags;
575   int card;
576   unsigned char id[64];
577   unsigned char name[80];
578   unsigned long reserved0;
579   unsigned long resolution;
580   unsigned char reserved[64];
581 };
582 #define SNDRV_TIMER_PSFLG_AUTO (1 << 0)
583 #define SNDRV_TIMER_PSFLG_EXCLUSIVE (1 << 1)
584 #define SNDRV_TIMER_PSFLG_EARLY_EVENT (1 << 2)
585 struct snd_timer_params {
586   unsigned int flags;
587   unsigned int ticks;
588   unsigned int queue_size;
589   unsigned int reserved0;
590   unsigned int filter;
591   unsigned char reserved[60];
592 };
593 struct snd_timer_status {
594   struct timespec tstamp;
595   unsigned int resolution;
596   unsigned int lost;
597   unsigned int overrun;
598   unsigned int queue;
599   unsigned char reserved[64];
600 };
601 #define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int)
602 #define SNDRV_TIMER_IOCTL_NEXT_DEVICE _IOWR('T', 0x01, struct snd_timer_id)
603 #define SNDRV_TIMER_IOCTL_TREAD _IOW('T', 0x02, int)
604 #define SNDRV_TIMER_IOCTL_GINFO _IOWR('T', 0x03, struct snd_timer_ginfo)
605 #define SNDRV_TIMER_IOCTL_GPARAMS _IOW('T', 0x04, struct snd_timer_gparams)
606 #define SNDRV_TIMER_IOCTL_GSTATUS _IOWR('T', 0x05, struct snd_timer_gstatus)
607 #define SNDRV_TIMER_IOCTL_SELECT _IOW('T', 0x10, struct snd_timer_select)
608 #define SNDRV_TIMER_IOCTL_INFO _IOR('T', 0x11, struct snd_timer_info)
609 #define SNDRV_TIMER_IOCTL_PARAMS _IOW('T', 0x12, struct snd_timer_params)
610 #define SNDRV_TIMER_IOCTL_STATUS _IOR('T', 0x14, struct snd_timer_status)
611 #define SNDRV_TIMER_IOCTL_START _IO('T', 0xa0)
612 #define SNDRV_TIMER_IOCTL_STOP _IO('T', 0xa1)
613 #define SNDRV_TIMER_IOCTL_CONTINUE _IO('T', 0xa2)
614 #define SNDRV_TIMER_IOCTL_PAUSE _IO('T', 0xa3)
615 struct snd_timer_read {
616   unsigned int resolution;
617   unsigned int ticks;
618 };
619 enum {
620   SNDRV_TIMER_EVENT_RESOLUTION = 0,
621   SNDRV_TIMER_EVENT_TICK,
622   SNDRV_TIMER_EVENT_START,
623   SNDRV_TIMER_EVENT_STOP,
624   SNDRV_TIMER_EVENT_CONTINUE,
625   SNDRV_TIMER_EVENT_PAUSE,
626   SNDRV_TIMER_EVENT_EARLY,
627   SNDRV_TIMER_EVENT_SUSPEND,
628   SNDRV_TIMER_EVENT_RESUME,
629   SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10,
630   SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10,
631   SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10,
632   SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10,
633   SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10,
634   SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10,
635 };
636 struct snd_timer_tread {
637   int event;
638   struct timespec tstamp;
639   unsigned int val;
640 };
641 #define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 7)
642 struct snd_ctl_card_info {
643   int card;
644   int pad;
645   unsigned char id[16];
646   unsigned char driver[16];
647   unsigned char name[32];
648   unsigned char longname[80];
649   unsigned char reserved_[16];
650   unsigned char mixername[80];
651   unsigned char components[128];
652 };
653 typedef int __bitwise snd_ctl_elem_type_t;
654 #define SNDRV_CTL_ELEM_TYPE_NONE ((__force snd_ctl_elem_type_t) 0)
655 #define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1)
656 #define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2)
657 #define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((__force snd_ctl_elem_type_t) 3)
658 #define SNDRV_CTL_ELEM_TYPE_BYTES ((__force snd_ctl_elem_type_t) 4)
659 #define SNDRV_CTL_ELEM_TYPE_IEC958 ((__force snd_ctl_elem_type_t) 5)
660 #define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((__force snd_ctl_elem_type_t) 6)
661 #define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64
662 typedef int __bitwise snd_ctl_elem_iface_t;
663 #define SNDRV_CTL_ELEM_IFACE_CARD ((__force snd_ctl_elem_iface_t) 0)
664 #define SNDRV_CTL_ELEM_IFACE_HWDEP ((__force snd_ctl_elem_iface_t) 1)
665 #define SNDRV_CTL_ELEM_IFACE_MIXER ((__force snd_ctl_elem_iface_t) 2)
666 #define SNDRV_CTL_ELEM_IFACE_PCM ((__force snd_ctl_elem_iface_t) 3)
667 #define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((__force snd_ctl_elem_iface_t) 4)
668 #define SNDRV_CTL_ELEM_IFACE_TIMER ((__force snd_ctl_elem_iface_t) 5)
669 #define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((__force snd_ctl_elem_iface_t) 6)
670 #define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER
671 #define SNDRV_CTL_ELEM_ACCESS_READ (1 << 0)
672 #define SNDRV_CTL_ELEM_ACCESS_WRITE (1 << 1)
673 #define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE)
674 #define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1 << 2)
675 #define SNDRV_CTL_ELEM_ACCESS_TIMESTAMP (1 << 3)
676 #define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1 << 4)
677 #define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1 << 5)
678 #define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_TLV_WRITE)
679 #define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1 << 6)
680 #define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1 << 8)
681 #define SNDRV_CTL_ELEM_ACCESS_LOCK (1 << 9)
682 #define SNDRV_CTL_ELEM_ACCESS_OWNER (1 << 10)
683 #define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1 << 28)
684 #define SNDRV_CTL_ELEM_ACCESS_USER (1 << 29)
685 #define SNDRV_CTL_POWER_D0 0x0000
686 #define SNDRV_CTL_POWER_D1 0x0100
687 #define SNDRV_CTL_POWER_D2 0x0200
688 #define SNDRV_CTL_POWER_D3 0x0300
689 #define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3 | 0x0000)
690 #define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3 | 0x0001)
691 #define SNDRV_CTL_ELEM_ID_NAME_MAXLEN 44
692 struct snd_ctl_elem_id {
693   unsigned int numid;
694   snd_ctl_elem_iface_t iface;
695   unsigned int device;
696   unsigned int subdevice;
697   unsigned char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
698   unsigned int index;
699 };
700 struct snd_ctl_elem_list {
701   unsigned int offset;
702   unsigned int space;
703   unsigned int used;
704   unsigned int count;
705   struct snd_ctl_elem_id __user * pids;
706   unsigned char reserved[50];
707 };
708 struct snd_ctl_elem_info {
709   struct snd_ctl_elem_id id;
710   snd_ctl_elem_type_t type;
711   unsigned int access;
712   unsigned int count;
713   __kernel_pid_t owner;
714   union {
715     struct {
716       long min;
717       long max;
718       long step;
719     } integer;
720     struct {
721       long long min;
722       long long max;
723       long long step;
724     } integer64;
725     struct {
726       unsigned int items;
727       unsigned int item;
728       char name[64];
729       __u64 names_ptr;
730       unsigned int names_length;
731     } enumerated;
732     unsigned char reserved[128];
733   } value;
734   union {
735     unsigned short d[4];
736     unsigned short * d_ptr;
737   } dimen;
738   unsigned char reserved[64 - 4 * sizeof(unsigned short)];
739 };
740 struct snd_ctl_elem_value {
741   struct snd_ctl_elem_id id;
742   unsigned int indirect : 1;
743   union {
744     union {
745       long value[128];
746       long * value_ptr;
747     } integer;
748     union {
749       long long value[64];
750       long long * value_ptr;
751     } integer64;
752     union {
753       unsigned int item[128];
754       unsigned int * item_ptr;
755     } enumerated;
756     union {
757       unsigned char data[512];
758       unsigned char * data_ptr;
759     } bytes;
760     struct snd_aes_iec958 iec958;
761   } value;
762   struct timespec tstamp;
763   unsigned char reserved[128 - sizeof(struct timespec)];
764 };
765 struct snd_ctl_tlv {
766   unsigned int numid;
767   unsigned int length;
768   unsigned int tlv[0];
769 };
770 #define SNDRV_CTL_IOCTL_PVERSION _IOR('U', 0x00, int)
771 #define SNDRV_CTL_IOCTL_CARD_INFO _IOR('U', 0x01, struct snd_ctl_card_info)
772 #define SNDRV_CTL_IOCTL_ELEM_LIST _IOWR('U', 0x10, struct snd_ctl_elem_list)
773 #define SNDRV_CTL_IOCTL_ELEM_INFO _IOWR('U', 0x11, struct snd_ctl_elem_info)
774 #define SNDRV_CTL_IOCTL_ELEM_READ _IOWR('U', 0x12, struct snd_ctl_elem_value)
775 #define SNDRV_CTL_IOCTL_ELEM_WRITE _IOWR('U', 0x13, struct snd_ctl_elem_value)
776 #define SNDRV_CTL_IOCTL_ELEM_LOCK _IOW('U', 0x14, struct snd_ctl_elem_id)
777 #define SNDRV_CTL_IOCTL_ELEM_UNLOCK _IOW('U', 0x15, struct snd_ctl_elem_id)
778 #define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int)
779 #define SNDRV_CTL_IOCTL_ELEM_ADD _IOWR('U', 0x17, struct snd_ctl_elem_info)
780 #define SNDRV_CTL_IOCTL_ELEM_REPLACE _IOWR('U', 0x18, struct snd_ctl_elem_info)
781 #define SNDRV_CTL_IOCTL_ELEM_REMOVE _IOWR('U', 0x19, struct snd_ctl_elem_id)
782 #define SNDRV_CTL_IOCTL_TLV_READ _IOWR('U', 0x1a, struct snd_ctl_tlv)
783 #define SNDRV_CTL_IOCTL_TLV_WRITE _IOWR('U', 0x1b, struct snd_ctl_tlv)
784 #define SNDRV_CTL_IOCTL_TLV_COMMAND _IOWR('U', 0x1c, struct snd_ctl_tlv)
785 #define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int)
786 #define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info)
787 #define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int)
788 #define SNDRV_CTL_IOCTL_PCM_INFO _IOWR('U', 0x31, struct snd_pcm_info)
789 #define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int)
790 #define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int)
791 #define SNDRV_CTL_IOCTL_RAWMIDI_INFO _IOWR('U', 0x41, struct snd_rawmidi_info)
792 #define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int)
793 #define SNDRV_CTL_IOCTL_POWER _IOWR('U', 0xd0, int)
794 #define SNDRV_CTL_IOCTL_POWER_STATE _IOR('U', 0xd1, int)
795 enum sndrv_ctl_event_type {
796   SNDRV_CTL_EVENT_ELEM = 0,
797   SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM,
798 };
799 #define SNDRV_CTL_EVENT_MASK_VALUE (1 << 0)
800 #define SNDRV_CTL_EVENT_MASK_INFO (1 << 1)
801 #define SNDRV_CTL_EVENT_MASK_ADD (1 << 2)
802 #define SNDRV_CTL_EVENT_MASK_TLV (1 << 3)
803 #define SNDRV_CTL_EVENT_MASK_REMOVE (~0U)
804 struct snd_ctl_event {
805   int type;
806   union {
807     struct {
808       unsigned int mask;
809       struct snd_ctl_elem_id id;
810     } elem;
811     unsigned char data8[60];
812   } data;
813 };
814 #define SNDRV_CTL_NAME_NONE ""
815 #define SNDRV_CTL_NAME_PLAYBACK "Playback "
816 #define SNDRV_CTL_NAME_CAPTURE "Capture "
817 #define SNDRV_CTL_NAME_IEC958_NONE ""
818 #define SNDRV_CTL_NAME_IEC958_SWITCH "Switch"
819 #define SNDRV_CTL_NAME_IEC958_VOLUME "Volume"
820 #define SNDRV_CTL_NAME_IEC958_DEFAULT "Default"
821 #define SNDRV_CTL_NAME_IEC958_MASK "Mask"
822 #define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask"
823 #define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask"
824 #define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream"
825 #define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_ ##direction SNDRV_CTL_NAME_IEC958_ ##what
826 #endif
827