FreeBSD/Linux Kernel Cross Reference
sys/sys/soundcard.h
1 /*
2 * soundcard.h
3 *
4 * Copyright by Hannu Savolainen 1993
5 * Modified for the new FreeBSD sound driver by Luigi Rizzo, 1997
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above
13 * copyright notice, this list of conditions and the following
14 * disclaimer in the documentation and/or other materials provided
15 * with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
20 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR
21 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
24 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
27 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 *
30 * $FreeBSD: releng/5.2/sys/sys/soundcard.h 122954 2003-11-22 03:27:09Z matk $
31 */
32
33 #ifndef _SYS_SOUNDCARD_H_
34 #define _SYS_SOUNDCARD_H_
35 /*
36 * If you make modifications to this file, please contact me before
37 * distributing the modified version. There is already enough
38 * diversity in the world.
39 *
40 * Regards,
41 * Hannu Savolainen
42 * hannu@voxware.pp.fi
43 *
44 **********************************************************************
45 * PS. The Hacker's Guide to VoxWare available from
46 * nic.funet.fi:pub/Linux/ALPHA/sound. The file is
47 * snd-sdk-doc-0.1.ps.gz (gzipped postscript). It contains
48 * some useful information about programming with VoxWare.
49 * (NOTE! The pub/Linux/ALPHA/ directories are hidden. You have
50 * to cd inside them before the files are accessible.)
51 **********************************************************************
52 */
53
54 /*
55 * SOUND_VERSION is only used by the voxware driver. Hopefully apps
56 * should not depend on it, but rather look at the capabilities
57 * of the driver in the kernel!
58 */
59 #define SOUND_VERSION 301
60 #define VOXWARE /* does this have any use ? */
61
62 /*
63 * Supported card ID numbers (Should be somewhere else? We keep
64 * them here just for compativility with the old driver, but these
65 * constants are of little or no use).
66 */
67
68 #define SNDCARD_ADLIB 1
69 #define SNDCARD_SB 2
70 #define SNDCARD_PAS 3
71 #define SNDCARD_GUS 4
72 #define SNDCARD_MPU401 5
73 #define SNDCARD_SB16 6
74 #define SNDCARD_SB16MIDI 7
75 #define SNDCARD_UART6850 8
76 #define SNDCARD_GUS16 9
77 #define SNDCARD_MSS 10
78 #define SNDCARD_PSS 11
79 #define SNDCARD_SSCAPE 12
80 #define SNDCARD_PSS_MPU 13
81 #define SNDCARD_PSS_MSS 14
82 #define SNDCARD_SSCAPE_MSS 15
83 #define SNDCARD_TRXPRO 16
84 #define SNDCARD_TRXPRO_SB 17
85 #define SNDCARD_TRXPRO_MPU 18
86 #define SNDCARD_MAD16 19
87 #define SNDCARD_MAD16_MPU 20
88 #define SNDCARD_CS4232 21
89 #define SNDCARD_CS4232_MPU 22
90 #define SNDCARD_MAUI 23
91 #define SNDCARD_PSEUDO_MSS 24
92 #define SNDCARD_AWE32 25
93 #define SNDCARD_NSS 26
94 #define SNDCARD_UART16550 27
95 #define SNDCARD_OPL 28
96
97 #include <sys/types.h>
98 #include <machine/endian.h>
99 #ifndef _IOWR
100 #include <sys/ioccom.h>
101 #endif /* !_IOWR */
102
103 /*
104 * The first part of this file contains the new FreeBSD sound ioctl
105 * interface. Tries to minimize the number of different ioctls, and
106 * to be reasonably general.
107 *
108 * 970821: some of the new calls have not been implemented yet.
109 */
110
111 /*
112 * the following three calls extend the generic file descriptor
113 * interface. AIONWRITE is the dual of FIONREAD, i.e. returns the max
114 * number of bytes for a write operation to be non-blocking.
115 *
116 * AIOGSIZE/AIOSSIZE are used to change the behaviour of the device,
117 * from a character device (default) to a block device. In block mode,
118 * (not to be confused with blocking mode) the main difference for the
119 * application is that select() will return only when a complete
120 * block can be read/written to the device, whereas in character mode
121 * select will return true when one byte can be exchanged. For audio
122 * devices, character mode makes select almost useless since one byte
123 * will always be ready by the next sample time (which is often only a
124 * handful of microseconds away).
125 * Use a size of 0 or 1 to return to character mode.
126 */
127 #define AIONWRITE _IOR('A', 10, int) /* get # bytes to write */
128 struct snd_size {
129 int play_size;
130 int rec_size;
131 };
132 #define AIOGSIZE _IOR('A', 11, struct snd_size)/* read current blocksize */
133 #define AIOSSIZE _IOWR('A', 11, struct snd_size) /* sets blocksize */
134
135 /*
136 * The following constants define supported audio formats. The
137 * encoding follows voxware conventions, i.e. 1 bit for each supported
138 * format. We extend it by using bit 31 (RO) to indicate full-duplex
139 * capability, and bit 29 (RO) to indicate that the card supports/
140 * needs different formats on capture & playback channels.
141 * Bit 29 (RW) is used to indicate/ask stereo.
142 *
143 * The number of bits required to store the sample is:
144 * o 4 bits for the IDA ADPCM format,
145 * o 8 bits for 8-bit formats, mu-law and A-law,
146 * o 16 bits for the 16-bit formats, and
147 * o 32 bits for the 24/32-bit formats.
148 * o undefined for the MPEG audio format.
149 */
150
151 #define AFMT_QUERY 0x00000000 /* Return current format */
152 #define AFMT_MU_LAW 0x00000001 /* Logarithmic mu-law */
153 #define AFMT_A_LAW 0x00000002 /* Logarithmic A-law */
154 #define AFMT_IMA_ADPCM 0x00000004 /* A 4:1 compressed format where 16-bit
155 * squence represented using the
156 * the average 4 bits per sample */
157 #define AFMT_U8 0x00000008 /* Unsigned 8-bit */
158 #define AFMT_S16_LE 0x00000010 /* Little endian signed 16-bit */
159 #define AFMT_S16_BE 0x00000020 /* Big endian signed 16-bit */
160 #define AFMT_S8 0x00000040 /* Signed 8-bit */
161 #define AFMT_U16_LE 0x00000080 /* Little endian unsigned 16-bit */
162 #define AFMT_U16_BE 0x00000100 /* Big endian unsigned 16-bit */
163 #define AFMT_MPEG 0x00000200 /* MPEG MP2/MP3 audio */
164 #define AFMT_AC3 0x00000400 /* Dolby Digital AC3 */
165
166 #if _BYTE_ORDER == _LITTLE_ENDIAN
167 #define AFMT_S16_NE AFMT_S16_LE /* native endian signed 16 */
168 #else
169 #define AFMT_S16_NE AFMT_S16_BE
170 #endif
171
172 /*
173 * 32-bit formats below used for 24-bit audio data where the data is stored
174 * in the 24 most significant bits and the least significant bits are not used
175 * (should be set to 0).
176 */
177 #define AFMT_S32_LE 0x00001000 /* Little endian signed 32-bit */
178 #define AFMT_S32_BE 0x00002000 /* Big endian signed 32-bit */
179 #define AFMT_U32_LE 0x00004000 /* Little endian unsigned 32-bit */
180 #define AFMT_U32_BE 0x00008000 /* Big endian unsigned 32-bit */
181
182 #define AFMT_STEREO 0x10000000 /* can do/want stereo */
183
184 /*
185 * the following are really capabilities
186 */
187 #define AFMT_WEIRD 0x20000000 /* weird hardware... */
188 /*
189 * AFMT_WEIRD reports that the hardware might need to operate
190 * with different formats in the playback and capture
191 * channels when operating in full duplex.
192 * As an example, SoundBlaster16 cards only support U8 in one
193 * direction and S16 in the other one, and applications should
194 * be aware of this limitation.
195 */
196 #define AFMT_FULLDUPLEX 0x80000000 /* can do full duplex */
197
198 /*
199 * The following structure is used to get/set format and sampling rate.
200 * While it would be better to have things such as stereo, bits per
201 * sample, endiannes, etc split in different variables, it turns out
202 * that formats are not that many, and not all combinations are possible.
203 * So we followed the Voxware approach of associating one bit to each
204 * format.
205 */
206
207 typedef struct _snd_chan_param {
208 u_long play_rate; /* sampling rate */
209 u_long rec_rate; /* sampling rate */
210 u_long play_format; /* everything describing the format */
211 u_long rec_format; /* everything describing the format */
212 } snd_chan_param;
213 #define AIOGFMT _IOR('f', 12, snd_chan_param) /* get format */
214 #define AIOSFMT _IOWR('f', 12, snd_chan_param) /* sets format */
215
216 /*
217 * The following structure is used to get/set the mixer setting.
218 * Up to 32 mixers are supported, each one with up to 32 channels.
219 */
220 typedef struct _snd_mix_param {
221 u_char subdev; /* which output */
222 u_char line; /* which input */
223 u_char left,right; /* volumes, 0..255, 0 = mute */
224 } snd_mix_param ;
225
226 /* XXX AIOGMIX, AIOSMIX not implemented yet */
227 #define AIOGMIX _IOWR('A', 13, snd_mix_param) /* return mixer status */
228 #define AIOSMIX _IOWR('A', 14, snd_mix_param) /* sets mixer status */
229
230 /*
231 * channel specifiers used in AIOSTOP and AIOSYNC
232 */
233 #define AIOSYNC_PLAY 0x1 /* play chan */
234 #define AIOSYNC_CAPTURE 0x2 /* capture chan */
235 /* AIOSTOP stop & flush a channel, returns the residual count */
236 #define AIOSTOP _IOWR ('A', 15, int)
237
238 /* alternate method used to notify the sync condition */
239 #define AIOSYNC_SIGNAL 0x100
240 #define AIOSYNC_SELECT 0x200
241
242 /* what the 'pos' field refers to */
243 #define AIOSYNC_READY 0x400
244 #define AIOSYNC_FREE 0x800
245
246 typedef struct _snd_sync_parm {
247 long chan ; /* play or capture channel, plus modifier */
248 long pos;
249 } snd_sync_parm;
250 #define AIOSYNC _IOWR ('A', 15, snd_sync_parm) /* misc. synchronization */
251
252 /*
253 * The following is used to return device capabilities. If the structure
254 * passed to the ioctl is zeroed, default values are returned for rate
255 * and formats, a bitmap of available mixers is returned, and values
256 * (inputs, different levels) for the first one are returned.
257 *
258 * If formats, mixers, inputs are instantiated, then detailed info
259 * are returned depending on the call.
260 */
261 typedef struct _snd_capabilities {
262 u_long rate_min, rate_max; /* min-max sampling rate */
263 u_long formats;
264 u_long bufsize; /* DMA buffer size */
265 u_long mixers; /* bitmap of available mixers */
266 u_long inputs; /* bitmap of available inputs (per mixer) */
267 u_short left, right; /* how many levels are supported */
268 } snd_capabilities;
269 #define AIOGCAP _IOWR('A', 15, snd_capabilities) /* get capabilities */
270
271 /*
272 * here is the old (Voxware) ioctl interface
273 */
274
275 /*
276 * IOCTL Commands for /dev/sequencer
277 */
278
279 #define SNDCTL_SEQ_RESET _IO ('Q', 0)
280 #define SNDCTL_SEQ_SYNC _IO ('Q', 1)
281 #define SNDCTL_SYNTH_INFO _IOWR('Q', 2, struct synth_info)
282 #define SNDCTL_SEQ_CTRLRATE _IOWR('Q', 3, int) /* Set/get timer res.(hz) */
283 #define SNDCTL_SEQ_GETOUTCOUNT _IOR ('Q', 4, int)
284 #define SNDCTL_SEQ_GETINCOUNT _IOR ('Q', 5, int)
285 #define SNDCTL_SEQ_PERCMODE _IOW ('Q', 6, int)
286 #define SNDCTL_FM_LOAD_INSTR _IOW ('Q', 7, struct sbi_instrument) /* Valid for FM only */
287 #define SNDCTL_SEQ_TESTMIDI _IOW ('Q', 8, int)
288 #define SNDCTL_SEQ_RESETSAMPLES _IOW ('Q', 9, int)
289 #define SNDCTL_SEQ_NRSYNTHS _IOR ('Q',10, int)
290 #define SNDCTL_SEQ_NRMIDIS _IOR ('Q',11, int)
291 #define SNDCTL_MIDI_INFO _IOWR('Q',12, struct midi_info)
292 #define SNDCTL_SEQ_THRESHOLD _IOW ('Q',13, int)
293 #define SNDCTL_SEQ_TRESHOLD SNDCTL_SEQ_THRESHOLD /* there was once a typo */
294 #define SNDCTL_SYNTH_MEMAVL _IOWR('Q',14, int) /* in=dev#, out=memsize */
295 #define SNDCTL_FM_4OP_ENABLE _IOW ('Q',15, int) /* in=dev# */
296 #define SNDCTL_PMGR_ACCESS _IOWR('Q',16, struct patmgr_info)
297 #define SNDCTL_SEQ_PANIC _IO ('Q',17)
298 #define SNDCTL_SEQ_OUTOFBAND _IOW ('Q',18, struct seq_event_rec)
299 #define SNDCTL_SEQ_GETTIME _IOR ('Q',19, int)
300
301 struct seq_event_rec {
302 u_char arr[8];
303 };
304
305 #define SNDCTL_TMR_TIMEBASE _IOWR('T', 1, int)
306 #define SNDCTL_TMR_START _IO ('T', 2)
307 #define SNDCTL_TMR_STOP _IO ('T', 3)
308 #define SNDCTL_TMR_CONTINUE _IO ('T', 4)
309 #define SNDCTL_TMR_TEMPO _IOWR('T', 5, int)
310 #define SNDCTL_TMR_SOURCE _IOWR('T', 6, int)
311 # define TMR_INTERNAL 0x00000001
312 # define TMR_EXTERNAL 0x00000002
313 # define TMR_MODE_MIDI 0x00000010
314 # define TMR_MODE_FSK 0x00000020
315 # define TMR_MODE_CLS 0x00000040
316 # define TMR_MODE_SMPTE 0x00000080
317 #define SNDCTL_TMR_METRONOME _IOW ('T', 7, int)
318 #define SNDCTL_TMR_SELECT _IOW ('T', 8, int)
319
320 /*
321 * Endian aware patch key generation algorithm.
322 */
323
324 #if defined(_AIX) || defined(AIX)
325 # define _PATCHKEY(id) (0xfd00|id)
326 #else
327 # define _PATCHKEY(id) ((id<<8)|0xfd)
328 #endif
329
330 /*
331 * Sample loading mechanism for internal synthesizers (/dev/sequencer)
332 * The following patch_info structure has been designed to support
333 * Gravis UltraSound. It tries to be universal format for uploading
334 * sample based patches but is probably too limited.
335 */
336
337 struct patch_info {
338 /* u_short key; Use GUS_PATCH here */
339 short key; /* Use GUS_PATCH here */
340 #define GUS_PATCH _PATCHKEY(0x04)
341 #define OBSOLETE_GUS_PATCH _PATCHKEY(0x02)
342
343 short device_no; /* Synthesizer number */
344 short instr_no; /* Midi pgm# */
345
346 u_long mode;
347 /*
348 * The least significant byte has the same format than the GUS .PAT
349 * files
350 */
351 #define WAVE_16_BITS 0x01 /* bit 0 = 8 or 16 bit wave data. */
352 #define WAVE_UNSIGNED 0x02 /* bit 1 = Signed - Unsigned data. */
353 #define WAVE_LOOPING 0x04 /* bit 2 = looping enabled-1. */
354 #define WAVE_BIDIR_LOOP 0x08 /* bit 3 = Set is bidirectional looping. */
355 #define WAVE_LOOP_BACK 0x10 /* bit 4 = Set is looping backward. */
356 #define WAVE_SUSTAIN_ON 0x20 /* bit 5 = Turn sustaining on. (Env. pts. 3)*/
357 #define WAVE_ENVELOPES 0x40 /* bit 6 = Enable envelopes - 1 */
358 /* (use the env_rate/env_offs fields). */
359 /* Linux specific bits */
360 #define WAVE_VIBRATO 0x00010000 /* The vibrato info is valid */
361 #define WAVE_TREMOLO 0x00020000 /* The tremolo info is valid */
362 #define WAVE_SCALE 0x00040000 /* The scaling info is valid */
363 /* Other bits must be zeroed */
364
365 long len; /* Size of the wave data in bytes */
366 long loop_start, loop_end; /* Byte offsets from the beginning */
367
368 /*
369 * The base_freq and base_note fields are used when computing the
370 * playback speed for a note. The base_note defines the tone frequency
371 * which is heard if the sample is played using the base_freq as the
372 * playback speed.
373 *
374 * The low_note and high_note fields define the minimum and maximum note
375 * frequencies for which this sample is valid. It is possible to define
376 * more than one samples for an instrument number at the same time. The
377 * low_note and high_note fields are used to select the most suitable one.
378 *
379 * The fields base_note, high_note and low_note should contain
380 * the note frequency multiplied by 1000. For example value for the
381 * middle A is 440*1000.
382 */
383
384 u_int base_freq;
385 u_long base_note;
386 u_long high_note;
387 u_long low_note;
388 int panning; /* -128=left, 127=right */
389 int detuning;
390
391 /* New fields introduced in version 1.99.5 */
392
393 /* Envelope. Enabled by mode bit WAVE_ENVELOPES */
394 u_char env_rate[ 6 ]; /* GUS HW ramping rate */
395 u_char env_offset[ 6 ]; /* 255 == 100% */
396
397 /*
398 * The tremolo, vibrato and scale info are not supported yet.
399 * Enable by setting the mode bits WAVE_TREMOLO, WAVE_VIBRATO or
400 * WAVE_SCALE
401 */
402
403 u_char tremolo_sweep;
404 u_char tremolo_rate;
405 u_char tremolo_depth;
406
407 u_char vibrato_sweep;
408 u_char vibrato_rate;
409 u_char vibrato_depth;
410
411 int scale_frequency;
412 u_int scale_factor; /* from 0 to 2048 or 0 to 2 */
413
414 int volume;
415 int spare[4];
416 char data[1]; /* The waveform data starts here */
417 };
418
419 struct sysex_info {
420 short key; /* Use GUS_PATCH here */
421 #define SYSEX_PATCH _PATCHKEY(0x05)
422 #define MAUI_PATCH _PATCHKEY(0x06)
423 short device_no; /* Synthesizer number */
424 long len; /* Size of the sysex data in bytes */
425 u_char data[1]; /* Sysex data starts here */
426 };
427
428 /*
429 * Patch management interface (/dev/sequencer, /dev/patmgr#)
430 * Don't use these calls if you want to maintain compatibility with
431 * the future versions of the driver.
432 */
433
434 #define PS_NO_PATCHES 0 /* No patch support on device */
435 #define PS_MGR_NOT_OK 1 /* Plain patch support (no mgr) */
436 #define PS_MGR_OK 2 /* Patch manager supported */
437 #define PS_MANAGED 3 /* Patch manager running */
438
439 #define SNDCTL_PMGR_IFACE _IOWR('P', 1, struct patmgr_info)
440
441 /*
442 * The patmgr_info is a fixed size structure which is used for two
443 * different purposes. The intended use is for communication between
444 * the application using /dev/sequencer and the patch manager daemon
445 * associated with a synthesizer device (ioctl(SNDCTL_PMGR_ACCESS)).
446 *
447 * This structure is also used with ioctl(SNDCTL_PGMR_IFACE) which allows
448 * a patch manager daemon to read and write device parameters. This
449 * ioctl available through /dev/sequencer also. Avoid using it since it's
450 * extremely hardware dependent. In addition access trough /dev/sequencer
451 * may confuse the patch manager daemon.
452 */
453
454 struct patmgr_info { /* Note! size must be < 4k since kmalloc() is used */
455 u_long key; /* Don't worry. Reserved for communication
456 between the patch manager and the driver. */
457 #define PM_K_EVENT 1 /* Event from the /dev/sequencer driver */
458 #define PM_K_COMMAND 2 /* Request from an application */
459 #define PM_K_RESPONSE 3 /* From patmgr to application */
460 #define PM_ERROR 4 /* Error returned by the patmgr */
461 int device;
462 int command;
463
464 /*
465 * Commands 0x000 to 0xfff reserved for patch manager programs
466 */
467 #define PM_GET_DEVTYPE 1 /* Returns type of the patch mgr interface of dev */
468 #define PMTYPE_FM2 1 /* 2 OP fm */
469 #define PMTYPE_FM4 2 /* Mixed 4 or 2 op FM (OPL-3) */
470 #define PMTYPE_WAVE 3 /* Wave table synthesizer (GUS) */
471 #define PM_GET_NRPGM 2 /* Returns max # of midi programs in parm1 */
472 #define PM_GET_PGMMAP 3 /* Returns map of loaded midi programs in data8 */
473 #define PM_GET_PGM_PATCHES 4 /* Return list of patches of a program (parm1) */
474 #define PM_GET_PATCH 5 /* Return patch header of patch parm1 */
475 #define PM_SET_PATCH 6 /* Set patch header of patch parm1 */
476 #define PM_READ_PATCH 7 /* Read patch (wave) data */
477 #define PM_WRITE_PATCH 8 /* Write patch (wave) data */
478
479 /*
480 * Commands 0x1000 to 0xffff are for communication between the patch manager
481 * and the client
482 */
483 #define _PM_LOAD_PATCH 0x100
484
485 /*
486 * Commands above 0xffff reserved for device specific use
487 */
488
489 long parm1;
490 long parm2;
491 long parm3;
492
493 union {
494 u_char data8[4000];
495 u_short data16[2000];
496 u_long data32[1000];
497 struct patch_info patch;
498 } data;
499 };
500
501 /*
502 * When a patch manager daemon is present, it will be informed by the
503 * driver when something important happens. For example when the
504 * /dev/sequencer is opened or closed. A record with key == PM_K_EVENT is
505 * returned. The command field contains the event type:
506 */
507 #define PM_E_OPENED 1 /* /dev/sequencer opened */
508 #define PM_E_CLOSED 2 /* /dev/sequencer closed */
509 #define PM_E_PATCH_RESET 3 /* SNDCTL_RESETSAMPLES called */
510 #define PM_E_PATCH_LOADED 4 /* A patch has been loaded by appl */
511
512 /*
513 * /dev/sequencer input events.
514 *
515 * The data written to the /dev/sequencer is a stream of events. Events
516 * are records of 4 or 8 bytes. The first byte defines the size.
517 * Any number of events can be written with a write call. There
518 * is a set of macros for sending these events. Use these macros if you
519 * want to maximize portability of your program.
520 *
521 * Events SEQ_WAIT, SEQ_MIDIPUTC and SEQ_ECHO. Are also input events.
522 * (All input events are currently 4 bytes long. Be prepared to support
523 * 8 byte events also. If you receive any event having first byte >= 128,
524 * it's a 8 byte event.
525 *
526 * The events are documented at the end of this file.
527 *
528 * Normal events (4 bytes)
529 * There is also a 8 byte version of most of the 4 byte events. The
530 * 8 byte one is recommended.
531 */
532 #define SEQ_NOTEOFF 0
533 #define SEQ_FMNOTEOFF SEQ_NOTEOFF /* Just old name */
534 #define SEQ_NOTEON 1
535 #define SEQ_FMNOTEON SEQ_NOTEON
536 #define SEQ_WAIT TMR_WAIT_ABS
537 #define SEQ_PGMCHANGE 3
538 #define SEQ_FMPGMCHANGE SEQ_PGMCHANGE
539 #define SEQ_SYNCTIMER TMR_START
540 #define SEQ_MIDIPUTC 5
541 #define SEQ_DRUMON 6 /*** OBSOLETE ***/
542 #define SEQ_DRUMOFF 7 /*** OBSOLETE ***/
543 #define SEQ_ECHO TMR_ECHO /* For synching programs with output */
544 #define SEQ_AFTERTOUCH 9
545 #define SEQ_CONTROLLER 10
546
547 /*
548 * Midi controller numbers
549 *
550 * Controllers 0 to 31 (0x00 to 0x1f) and 32 to 63 (0x20 to 0x3f)
551 * are continuous controllers.
552 * In the MIDI 1.0 these controllers are sent using two messages.
553 * Controller numbers 0 to 31 are used to send the MSB and the
554 * controller numbers 32 to 63 are for the LSB. Note that just 7 bits
555 * are used in MIDI bytes.
556 */
557
558 #define CTL_BANK_SELECT 0x00
559 #define CTL_MODWHEEL 0x01
560 #define CTL_BREATH 0x02
561 /* undefined 0x03 */
562 #define CTL_FOOT 0x04
563 #define CTL_PORTAMENTO_TIME 0x05
564 #define CTL_DATA_ENTRY 0x06
565 #define CTL_MAIN_VOLUME 0x07
566 #define CTL_BALANCE 0x08
567 /* undefined 0x09 */
568 #define CTL_PAN 0x0a
569 #define CTL_EXPRESSION 0x0b
570 /* undefined 0x0c - 0x0f */
571 #define CTL_GENERAL_PURPOSE1 0x10
572 #define CTL_GENERAL_PURPOSE2 0x11
573 #define CTL_GENERAL_PURPOSE3 0x12
574 #define CTL_GENERAL_PURPOSE4 0x13
575 /* undefined 0x14 - 0x1f */
576
577 /* undefined 0x20 */
578
579 /*
580 * The controller numbers 0x21 to 0x3f are reserved for the
581 * least significant bytes of the controllers 0x00 to 0x1f.
582 * These controllers are not recognised by the driver.
583 *
584 * Controllers 64 to 69 (0x40 to 0x45) are on/off switches.
585 * 0=OFF and 127=ON (intermediate values are possible)
586 */
587 #define CTL_DAMPER_PEDAL 0x40
588 #define CTL_SUSTAIN CTL_DAMPER_PEDAL /* Alias */
589 #define CTL_HOLD CTL_DAMPER_PEDAL /* Alias */
590 #define CTL_PORTAMENTO 0x41
591 #define CTL_SOSTENUTO 0x42
592 #define CTL_SOFT_PEDAL 0x43
593 /* undefined 0x44 */
594 #define CTL_HOLD2 0x45
595 /* undefined 0x46 - 0x4f */
596
597 #define CTL_GENERAL_PURPOSE5 0x50
598 #define CTL_GENERAL_PURPOSE6 0x51
599 #define CTL_GENERAL_PURPOSE7 0x52
600 #define CTL_GENERAL_PURPOSE8 0x53
601 /* undefined 0x54 - 0x5a */
602 #define CTL_EXT_EFF_DEPTH 0x5b
603 #define CTL_TREMOLO_DEPTH 0x5c
604 #define CTL_CHORUS_DEPTH 0x5d
605 #define CTL_DETUNE_DEPTH 0x5e
606 #define CTL_CELESTE_DEPTH CTL_DETUNE_DEPTH /* Alias for the above one */
607 #define CTL_PHASER_DEPTH 0x5f
608 #define CTL_DATA_INCREMENT 0x60
609 #define CTL_DATA_DECREMENT 0x61
610 #define CTL_NONREG_PARM_NUM_LSB 0x62
611 #define CTL_NONREG_PARM_NUM_MSB 0x63
612 #define CTL_REGIST_PARM_NUM_LSB 0x64
613 #define CTL_REGIST_PARM_NUM_MSB 0x65
614 /* undefined 0x66 - 0x78 */
615 /* reserved 0x79 - 0x7f */
616
617 /* Pseudo controllers (not midi compatible) */
618 #define CTRL_PITCH_BENDER 255
619 #define CTRL_PITCH_BENDER_RANGE 254
620 #define CTRL_EXPRESSION 253 /* Obsolete */
621 #define CTRL_MAIN_VOLUME 252 /* Obsolete */
622
623 #define SEQ_BALANCE 11
624 #define SEQ_VOLMODE 12
625
626 /*
627 * Volume mode decides how volumes are used
628 */
629
630 #define VOL_METHOD_ADAGIO 1
631 #define VOL_METHOD_LINEAR 2
632
633 /*
634 * Note! SEQ_WAIT, SEQ_MIDIPUTC and SEQ_ECHO are used also as
635 * input events.
636 */
637
638 /*
639 * Event codes 0xf0 to 0xfc are reserved for future extensions.
640 */
641
642 #define SEQ_FULLSIZE 0xfd /* Long events */
643 /*
644 * SEQ_FULLSIZE events are used for loading patches/samples to the
645 * synthesizer devices. These events are passed directly to the driver
646 * of the associated synthesizer device. There is no limit to the size
647 * of the extended events. These events are not queued but executed
648 * immediately when the write() is called (execution can take several
649 * seconds of time).
650 *
651 * When a SEQ_FULLSIZE message is written to the device, it must
652 * be written using exactly one write() call. Other events cannot
653 * be mixed to the same write.
654 *
655 * For FM synths (YM3812/OPL3) use struct sbi_instrument and write
656 * it to the /dev/sequencer. Don't write other data together with
657 * the instrument structure Set the key field of the structure to
658 * FM_PATCH. The device field is used to route the patch to the
659 * corresponding device.
660 *
661 * For Gravis UltraSound use struct patch_info. Initialize the key field
662 * to GUS_PATCH.
663 */
664 #define SEQ_PRIVATE 0xfe /* Low level HW dependent events (8 bytes) */
665 #define SEQ_EXTENDED 0xff /* Extended events (8 bytes) OBSOLETE */
666
667 /*
668 * Record for FM patches
669 */
670
671 typedef u_char sbi_instr_data[32];
672
673 struct sbi_instrument {
674 u_short key; /* FM_PATCH or OPL3_PATCH */
675 #define FM_PATCH _PATCHKEY(0x01)
676 #define OPL3_PATCH _PATCHKEY(0x03)
677 short device; /* Synth# (0-4) */
678 int channel; /* Program# to be initialized */
679 sbi_instr_data operators; /* Reg. settings for operator cells
680 * (.SBI format) */
681 };
682
683 struct synth_info { /* Read only */
684 char name[30];
685 int device; /* 0-N. INITIALIZE BEFORE CALLING */
686 int synth_type;
687 #define SYNTH_TYPE_FM 0
688 #define SYNTH_TYPE_SAMPLE 1
689 #define SYNTH_TYPE_MIDI 2 /* Midi interface */
690
691 int synth_subtype;
692 #define FM_TYPE_ADLIB 0x00
693 #define FM_TYPE_OPL3 0x01
694 #define MIDI_TYPE_MPU401 0x401
695
696 #define SAMPLE_TYPE_BASIC 0x10
697 #define SAMPLE_TYPE_GUS SAMPLE_TYPE_BASIC
698 #define SAMPLE_TYPE_AWE32 0x20
699
700 int perc_mode; /* No longer supported */
701 int nr_voices;
702 int nr_drums; /* Obsolete field */
703 int instr_bank_size;
704 u_long capabilities;
705 #define SYNTH_CAP_PERCMODE 0x00000001 /* No longer used */
706 #define SYNTH_CAP_OPL3 0x00000002 /* Set if OPL3 supported */
707 #define SYNTH_CAP_INPUT 0x00000004 /* Input (MIDI) device */
708 int dummies[19]; /* Reserve space */
709 };
710
711 struct sound_timer_info {
712 char name[32];
713 int caps;
714 };
715
716 #define MIDI_CAP_MPU401 1 /* MPU-401 intelligent mode */
717
718 struct midi_info {
719 char name[30];
720 int device; /* 0-N. INITIALIZE BEFORE CALLING */
721 u_long capabilities; /* To be defined later */
722 int dev_type;
723 int dummies[18]; /* Reserve space */
724 };
725
726 /*
727 * ioctl commands for the /dev/midi##
728 */
729 typedef struct {
730 u_char cmd;
731 char nr_args, nr_returns;
732 u_char data[30];
733 } mpu_command_rec;
734
735 #define SNDCTL_MIDI_PRETIME _IOWR('m', 0, int)
736 #define SNDCTL_MIDI_MPUMODE _IOWR('m', 1, int)
737 #define SNDCTL_MIDI_MPUCMD _IOWR('m', 2, mpu_command_rec)
738 #define MIOSPASSTHRU _IOWR('m', 3, int)
739 #define MIOGPASSTHRU _IOWR('m', 4, int)
740
741 /*
742 * IOCTL commands for /dev/dsp and /dev/audio
743 */
744
745 #define SNDCTL_DSP_RESET _IO ('P', 0)
746 #define SNDCTL_DSP_SYNC _IO ('P', 1)
747 #define SNDCTL_DSP_SPEED _IOWR('P', 2, int)
748 #define SNDCTL_DSP_STEREO _IOWR('P', 3, int)
749 #define SNDCTL_DSP_GETBLKSIZE _IOR('P', 4, int)
750 #define SNDCTL_DSP_SETBLKSIZE _IOW('P', 4, int)
751 #define SNDCTL_DSP_SETFMT _IOWR('P',5, int) /* Selects ONE fmt*/
752
753 /*
754 * SOUND_PCM_WRITE_CHANNELS is not that different
755 * from SNDCTL_DSP_STEREO
756 */
757 #define SOUND_PCM_WRITE_CHANNELS _IOWR('P', 6, int)
758 #define SNDCTL_DSP_CHANNELS SOUND_PCM_WRITE_CHANNELS
759 #define SOUND_PCM_WRITE_FILTER _IOWR('P', 7, int)
760 #define SNDCTL_DSP_POST _IO ('P', 8)
761
762 /*
763 * SNDCTL_DSP_SETBLKSIZE and the following two calls mostly do
764 * the same thing, i.e. set the block size used in DMA transfers.
765 */
766 #define SNDCTL_DSP_SUBDIVIDE _IOWR('P', 9, int)
767 #define SNDCTL_DSP_SETFRAGMENT _IOWR('P',10, int)
768
769
770 #define SNDCTL_DSP_GETFMTS _IOR ('P',11, int) /* Returns a mask */
771 /*
772 * Buffer status queries.
773 */
774 typedef struct audio_buf_info {
775 int fragments; /* # of avail. frags (partly used ones not counted) */
776 int fragstotal; /* Total # of fragments allocated */
777 int fragsize; /* Size of a fragment in bytes */
778
779 int bytes; /* Avail. space in bytes (includes partly used fragments) */
780 /* Note! 'bytes' could be more than fragments*fragsize */
781 } audio_buf_info;
782
783 #define SNDCTL_DSP_GETOSPACE _IOR ('P',12, audio_buf_info)
784 #define SNDCTL_DSP_GETISPACE _IOR ('P',13, audio_buf_info)
785
786 /*
787 * SNDCTL_DSP_NONBLOCK is the same (but less powerful, since the
788 * action cannot be undone) of FIONBIO. The same can be achieved
789 * by opening the device with O_NDELAY
790 */
791 #define SNDCTL_DSP_NONBLOCK _IO ('P',14)
792
793 #define SNDCTL_DSP_GETCAPS _IOR ('P',15, int)
794 #define DSP_CAP_REVISION 0x000000ff /* revision level (0 to 255) */
795 #define DSP_CAP_DUPLEX 0x00000100 /* Full duplex record/playback */
796 #define DSP_CAP_REALTIME 0x00000200 /* Real time capability */
797 #define DSP_CAP_BATCH 0x00000400
798 /*
799 * Device has some kind of internal buffers which may
800 * cause some delays and decrease precision of timing
801 */
802 #define DSP_CAP_COPROC 0x00000800
803 /* Has a coprocessor, sometimes it's a DSP but usually not */
804 #define DSP_CAP_TRIGGER 0x00001000 /* Supports SETTRIGGER */
805 #define DSP_CAP_MMAP 0x00002000 /* Supports mmap() */
806
807 /*
808 * What do these function do ?
809 */
810 #define SNDCTL_DSP_GETTRIGGER _IOR ('P',16, int)
811 #define SNDCTL_DSP_SETTRIGGER _IOW ('P',16, int)
812 #define PCM_ENABLE_INPUT 0x00000001
813 #define PCM_ENABLE_OUTPUT 0x00000002
814
815 typedef struct count_info {
816 int bytes; /* Total # of bytes processed */
817 int blocks; /* # of fragment transitions since last time */
818 int ptr; /* Current DMA pointer value */
819 } count_info;
820
821 /*
822 * GETIPTR and GETISPACE are not that different... same for out.
823 */
824 #define SNDCTL_DSP_GETIPTR _IOR ('P',17, count_info)
825 #define SNDCTL_DSP_GETOPTR _IOR ('P',18, count_info)
826
827 typedef struct buffmem_desc {
828 caddr_t buffer;
829 int size;
830 } buffmem_desc;
831
832 #define SNDCTL_DSP_MAPINBUF _IOR ('P', 19, buffmem_desc)
833 #define SNDCTL_DSP_MAPOUTBUF _IOR ('P', 20, buffmem_desc)
834 #define SNDCTL_DSP_SETSYNCRO _IO ('P', 21)
835 #define SNDCTL_DSP_SETDUPLEX _IO ('P', 22)
836 #define SNDCTL_DSP_GETODELAY _IOR ('P', 23, int)
837
838 /*
839 * I guess these are the readonly version of the same
840 * functions that exist above as SNDCTL_DSP_...
841 */
842 #define SOUND_PCM_READ_RATE _IOR ('P', 2, int)
843 #define SOUND_PCM_READ_CHANNELS _IOR ('P', 6, int)
844 #define SOUND_PCM_READ_BITS _IOR ('P', 5, int)
845 #define SOUND_PCM_READ_FILTER _IOR ('P', 7, int)
846
847 /*
848 * ioctl calls to be used in communication with coprocessors and
849 * DSP chips.
850 */
851
852 typedef struct copr_buffer {
853 int command; /* Set to 0 if not used */
854 int flags;
855 #define CPF_NONE 0x0000
856 #define CPF_FIRST 0x0001 /* First block */
857 #define CPF_LAST 0x0002 /* Last block */
858 int len;
859 int offs; /* If required by the device (0 if not used) */
860
861 u_char data[4000]; /* NOTE! 4000 is not 4k */
862 } copr_buffer;
863
864 typedef struct copr_debug_buf {
865 int command; /* Used internally. Set to 0 */
866 int parm1;
867 int parm2;
868 int flags;
869 int len; /* Length of data in bytes */
870 } copr_debug_buf;
871
872 typedef struct copr_msg {
873 int len;
874 u_char data[4000];
875 } copr_msg;
876
877 #define SNDCTL_COPR_RESET _IO ('C', 0)
878 #define SNDCTL_COPR_LOAD _IOWR('C', 1, copr_buffer)
879 #define SNDCTL_COPR_RDATA _IOWR('C', 2, copr_debug_buf)
880 #define SNDCTL_COPR_RCODE _IOWR('C', 3, copr_debug_buf)
881 #define SNDCTL_COPR_WDATA _IOW ('C', 4, copr_debug_buf)
882 #define SNDCTL_COPR_WCODE _IOW ('C', 5, copr_debug_buf)
883 #define SNDCTL_COPR_RUN _IOWR('C', 6, copr_debug_buf)
884 #define SNDCTL_COPR_HALT _IOWR('C', 7, copr_debug_buf)
885 #define SNDCTL_COPR_SENDMSG _IOW ('C', 8, copr_msg)
886 #define SNDCTL_COPR_RCVMSG _IOR ('C', 9, copr_msg)
887
888 /*
889 * IOCTL commands for /dev/mixer
890 */
891
892 /*
893 * Mixer devices
894 *
895 * There can be up to 20 different analog mixer channels. The
896 * SOUND_MIXER_NRDEVICES gives the currently supported maximum.
897 * The SOUND_MIXER_READ_DEVMASK returns a bitmask which tells
898 * the devices supported by the particular mixer.
899 */
900
901 #define SOUND_MIXER_NRDEVICES 25
902 #define SOUND_MIXER_VOLUME 0 /* Master output level */
903 #define SOUND_MIXER_BASS 1 /* Treble level of all output channels */
904 #define SOUND_MIXER_TREBLE 2 /* Bass level of all output channels */
905 #define SOUND_MIXER_SYNTH 3 /* Volume of synthesier input */
906 #define SOUND_MIXER_PCM 4 /* Output level for the audio device */
907 #define SOUND_MIXER_SPEAKER 5 /* Output level for the PC speaker
908 * signals */
909 #define SOUND_MIXER_LINE 6 /* Volume level for the line in jack */
910 #define SOUND_MIXER_MIC 7 /* Volume for the signal coming from
911 * the microphone jack */
912 #define SOUND_MIXER_CD 8 /* Volume level for the input signal
913 * connected to the CD audio input */
914 #define SOUND_MIXER_IMIX 9 /* Recording monitor. It controls the
915 * output volume of the selected
916 * recording sources while recording */
917 #define SOUND_MIXER_ALTPCM 10 /* Volume of the alternative codec
918 * device */
919 #define SOUND_MIXER_RECLEV 11 /* Global recording level */
920 #define SOUND_MIXER_IGAIN 12 /* Input gain */
921 #define SOUND_MIXER_OGAIN 13 /* Output gain */
922 /*
923 * The AD1848 codec and compatibles have three line level inputs
924 * (line, aux1 and aux2). Since each card manufacturer have assigned
925 * different meanings to these inputs, it's inpractical to assign
926 * specific meanings (line, cd, synth etc.) to them.
927 */
928 #define SOUND_MIXER_LINE1 14 /* Input source 1 (aux1) */
929 #define SOUND_MIXER_LINE2 15 /* Input source 2 (aux2) */
930 #define SOUND_MIXER_LINE3 16 /* Input source 3 (line) */
931 #define SOUND_MIXER_DIGITAL1 17 /* Digital (input) 1 */
932 #define SOUND_MIXER_DIGITAL2 18 /* Digital (input) 2 */
933 #define SOUND_MIXER_DIGITAL3 19 /* Digital (input) 3 */
934 #define SOUND_MIXER_PHONEIN 20 /* Phone input */
935 #define SOUND_MIXER_PHONEOUT 21 /* Phone output */
936 #define SOUND_MIXER_VIDEO 22 /* Video/TV (audio) in */
937 #define SOUND_MIXER_RADIO 23 /* Radio in */
938 #define SOUND_MIXER_MONITOR 24 /* Monitor (usually mic) volume */
939
940
941 /*
942 * Some on/off settings (SOUND_SPECIAL_MIN - SOUND_SPECIAL_MAX)
943 * Not counted to SOUND_MIXER_NRDEVICES, but use the same number space
944 */
945 #define SOUND_ONOFF_MIN 28
946 #define SOUND_ONOFF_MAX 30
947 #define SOUND_MIXER_MUTE 28 /* 0 or 1 */
948 #define SOUND_MIXER_ENHANCE 29 /* Enhanced stereo (0, 40, 60 or 80) */
949 #define SOUND_MIXER_LOUD 30 /* 0 or 1 */
950
951 /* Note! Number 31 cannot be used since the sign bit is reserved */
952 #define SOUND_MIXER_NONE 31
953
954 #define SOUND_DEVICE_LABELS { \
955 "Vol ", "Bass ", "Trebl", "Synth", "Pcm ", "Spkr ", "Line ", \
956 "Mic ", "CD ", "Mix ", "Pcm2 ", "Rec ", "IGain", "OGain", \
957 "Line1", "Line2", "Line3", "Digital1", "Digital2", "Digital3", \
958 "PhoneIn", "PhoneOut", "Video", "Radio", "Monitor"}
959
960 #define SOUND_DEVICE_NAMES { \
961 "vol", "bass", "treble", "synth", "pcm", "speaker", "line", \
962 "mic", "cd", "mix", "pcm2", "rec", "igain", "ogain", \
963 "line1", "line2", "line3", "dig1", "dig2", "dig3", \
964 "phin", "phout", "video", "radio", "monitor"}
965
966 /* Device bitmask identifiers */
967
968 #define SOUND_MIXER_RECSRC 0xff /* 1 bit per recording source */
969 #define SOUND_MIXER_DEVMASK 0xfe /* 1 bit per supported device */
970 #define SOUND_MIXER_RECMASK 0xfd /* 1 bit per supp. recording source */
971 #define SOUND_MIXER_CAPS 0xfc
972 #define SOUND_CAP_EXCL_INPUT 0x00000001 /* Only 1 rec. src at a time */
973 #define SOUND_MIXER_STEREODEVS 0xfb /* Mixer channels supporting stereo */
974
975 /* Device mask bits */
976
977 #define SOUND_MASK_VOLUME (1 << SOUND_MIXER_VOLUME)
978 #define SOUND_MASK_BASS (1 << SOUND_MIXER_BASS)
979 #define SOUND_MASK_TREBLE (1 << SOUND_MIXER_TREBLE)
980 #define SOUND_MASK_SYNTH (1 << SOUND_MIXER_SYNTH)
981 #define SOUND_MASK_PCM (1 << SOUND_MIXER_PCM)
982 #define SOUND_MASK_SPEAKER (1 << SOUND_MIXER_SPEAKER)
983 #define SOUND_MASK_LINE (1 << SOUND_MIXER_LINE)
984 #define SOUND_MASK_MIC (1 << SOUND_MIXER_MIC)
985 #define SOUND_MASK_CD (1 << SOUND_MIXER_CD)
986 #define SOUND_MASK_IMIX (1 << SOUND_MIXER_IMIX)
987 #define SOUND_MASK_ALTPCM (1 << SOUND_MIXER_ALTPCM)
988 #define SOUND_MASK_RECLEV (1 << SOUND_MIXER_RECLEV)
989 #define SOUND_MASK_IGAIN (1 << SOUND_MIXER_IGAIN)
990 #define SOUND_MASK_OGAIN (1 << SOUND_MIXER_OGAIN)
991 #define SOUND_MASK_LINE1 (1 << SOUND_MIXER_LINE1)
992 #define SOUND_MASK_LINE2 (1 << SOUND_MIXER_LINE2)
993 #define SOUND_MASK_LINE3 (1 << SOUND_MIXER_LINE3)
994 #define SOUND_MASK_DIGITAL1 (1 << SOUND_MIXER_DIGITAL1)
995 #define SOUND_MASK_DIGITAL2 (1 << SOUND_MIXER_DIGITAL2)
996 #define SOUND_MASK_DIGITAL3 (1 << SOUND_MIXER_DIGITAL3)
997 #define SOUND_MASK_PHONEIN (1 << SOUND_MIXER_PHONEIN)
998 #define SOUND_MASK_PHONEOUT (1 << SOUND_MIXER_PHONEOUT)
999 #define SOUND_MASK_RADIO (1 << SOUND_MIXER_RADIO)
1000 #define SOUND_MASK_VIDEO (1 << SOUND_MIXER_VIDEO)
1001 #define SOUND_MASK_MONITOR (1 << SOUND_MIXER_MONITOR)
1002
1003 /* Obsolete macros */
1004 #define SOUND_MASK_MUTE (1 << SOUND_MIXER_MUTE)
1005 #define SOUND_MASK_ENHANCE (1 << SOUND_MIXER_ENHANCE)
1006 #define SOUND_MASK_LOUD (1 << SOUND_MIXER_LOUD)
1007
1008 #define MIXER_READ(dev) _IOR('M', dev, int)
1009 #define SOUND_MIXER_READ_VOLUME MIXER_READ(SOUND_MIXER_VOLUME)
1010 #define SOUND_MIXER_READ_BASS MIXER_READ(SOUND_MIXER_BASS)
1011 #define SOUND_MIXER_READ_TREBLE MIXER_READ(SOUND_MIXER_TREBLE)
1012 #define SOUND_MIXER_READ_SYNTH MIXER_READ(SOUND_MIXER_SYNTH)
1013 #define SOUND_MIXER_READ_PCM MIXER_READ(SOUND_MIXER_PCM)
1014 #define SOUND_MIXER_READ_SPEAKER MIXER_READ(SOUND_MIXER_SPEAKER)
1015 #define SOUND_MIXER_READ_LINE MIXER_READ(SOUND_MIXER_LINE)
1016 #define SOUND_MIXER_READ_MIC MIXER_READ(SOUND_MIXER_MIC)
1017 #define SOUND_MIXER_READ_CD MIXER_READ(SOUND_MIXER_CD)
1018 #define SOUND_MIXER_READ_IMIX MIXER_READ(SOUND_MIXER_IMIX)
1019 #define SOUND_MIXER_READ_ALTPCM MIXER_READ(SOUND_MIXER_ALTPCM)
1020 #define SOUND_MIXER_READ_RECLEV MIXER_READ(SOUND_MIXER_RECLEV)
1021 #define SOUND_MIXER_READ_IGAIN MIXER_READ(SOUND_MIXER_IGAIN)
1022 #define SOUND_MIXER_READ_OGAIN MIXER_READ(SOUND_MIXER_OGAIN)
1023 #define SOUND_MIXER_READ_LINE1 MIXER_READ(SOUND_MIXER_LINE1)
1024 #define SOUND_MIXER_READ_LINE2 MIXER_READ(SOUND_MIXER_LINE2)
1025 #define SOUND_MIXER_READ_LINE3 MIXER_READ(SOUND_MIXER_LINE3)
1026 #define SOUND_MIXER_READ_DIGITAL1 MIXER_READ(SOUND_MIXER_DIGITAL1)
1027 #define SOUND_MIXER_READ_DIGITAL2 MIXER_READ(SOUND_MIXER_DIGITAL2)
1028 #define SOUND_MIXER_READ_DIGITAL3 MIXER_READ(SOUND_MIXER_DIGITAL3)
1029 #define SOUND_MIXER_READ_PHONEIN MIXER_READ(SOUND_MIXER_PHONEIN)
1030 #define SOUND_MIXER_READ_PHONEOUT MIXER_READ(SOUND_MIXER_PHONEOUT)
1031 #define SOUND_MIXER_READ_RADIO MIXER_READ(SOUND_MIXER_RADIO)
1032 #define SOUND_MIXER_READ_VIDEO MIXER_READ(SOUND_MIXER_VIDEO)
1033 #define SOUND_MIXER_READ_MONITOR MIXER_READ(SOUND_MIXER_MONITOR)
1034
1035 /* Obsolete macros */
1036 #define SOUND_MIXER_READ_MUTE MIXER_READ(SOUND_MIXER_MUTE)
1037 #define SOUND_MIXER_READ_ENHANCE MIXER_READ(SOUND_MIXER_ENHANCE)
1038 #define SOUND_MIXER_READ_LOUD MIXER_READ(SOUND_MIXER_LOUD)
1039
1040 #define SOUND_MIXER_READ_RECSRC MIXER_READ(SOUND_MIXER_RECSRC)
1041 #define SOUND_MIXER_READ_DEVMASK MIXER_READ(SOUND_MIXER_DEVMASK)
1042 #define SOUND_MIXER_READ_RECMASK MIXER_READ(SOUND_MIXER_RECMASK)
1043 #define SOUND_MIXER_READ_STEREODEVS MIXER_READ(SOUND_MIXER_STEREODEVS)
1044 #define SOUND_MIXER_READ_CAPS MIXER_READ(SOUND_MIXER_CAPS)
1045
1046 #define MIXER_WRITE(dev) _IOWR('M', dev, int)
1047 #define SOUND_MIXER_WRITE_VOLUME MIXER_WRITE(SOUND_MIXER_VOLUME)
1048 #define SOUND_MIXER_WRITE_BASS MIXER_WRITE(SOUND_MIXER_BASS)
1049 #define SOUND_MIXER_WRITE_TREBLE MIXER_WRITE(SOUND_MIXER_TREBLE)
1050 #define SOUND_MIXER_WRITE_SYNTH MIXER_WRITE(SOUND_MIXER_SYNTH)
1051 #define SOUND_MIXER_WRITE_PCM MIXER_WRITE(SOUND_MIXER_PCM)
1052 #define SOUND_MIXER_WRITE_SPEAKER MIXER_WRITE(SOUND_MIXER_SPEAKER)
1053 #define SOUND_MIXER_WRITE_LINE MIXER_WRITE(SOUND_MIXER_LINE)
1054 #define SOUND_MIXER_WRITE_MIC MIXER_WRITE(SOUND_MIXER_MIC)
1055 #define SOUND_MIXER_WRITE_CD MIXER_WRITE(SOUND_MIXER_CD)
1056 #define SOUND_MIXER_WRITE_IMIX MIXER_WRITE(SOUND_MIXER_IMIX)
1057 #define SOUND_MIXER_WRITE_ALTPCM MIXER_WRITE(SOUND_MIXER_ALTPCM)
1058 #define SOUND_MIXER_WRITE_RECLEV MIXER_WRITE(SOUND_MIXER_RECLEV)
1059 #define SOUND_MIXER_WRITE_IGAIN MIXER_WRITE(SOUND_MIXER_IGAIN)
1060 #define SOUND_MIXER_WRITE_OGAIN MIXER_WRITE(SOUND_MIXER_OGAIN)
1061 #define SOUND_MIXER_WRITE_LINE1 MIXER_WRITE(SOUND_MIXER_LINE1)
1062 #define SOUND_MIXER_WRITE_LINE2 MIXER_WRITE(SOUND_MIXER_LINE2)
1063 #define SOUND_MIXER_WRITE_LINE3 MIXER_WRITE(SOUND_MIXER_LINE3)
1064 #define SOUND_MIXER_WRITE_DIGITAL1 MIXER_WRITE(SOUND_MIXER_DIGITAL1)
1065 #define SOUND_MIXER_WRITE_DIGITAL2 MIXER_WRITE(SOUND_MIXER_DIGITAL2)
1066 #define SOUND_MIXER_WRITE_DIGITAL3 MIXER_WRITE(SOUND_MIXER_DIGITAL3)
1067 #define SOUND_MIXER_WRITE_PHONEIN MIXER_WRITE(SOUND_MIXER_PHONEIN)
1068 #define SOUND_MIXER_WRITE_PHONEOUT MIXER_WRITE(SOUND_MIXER_PHONEOUT)
1069 #define SOUND_MIXER_WRITE_RADIO MIXER_WRITE(SOUND_MIXER_RADIO)
1070 #define SOUND_MIXER_WRITE_VIDEO MIXER_WRITE(SOUND_MIXER_VIDEO)
1071 #define SOUND_MIXER_WRITE_MONITOR MIXER_WRITE(SOUND_MIXER_MONITOR)
1072
1073 #define SOUND_MIXER_WRITE_MUTE MIXER_WRITE(SOUND_MIXER_MUTE)
1074 #define SOUND_MIXER_WRITE_ENHANCE MIXER_WRITE(SOUND_MIXER_ENHANCE)
1075 #define SOUND_MIXER_WRITE_LOUD MIXER_WRITE(SOUND_MIXER_LOUD)
1076
1077 #define SOUND_MIXER_WRITE_RECSRC MIXER_WRITE(SOUND_MIXER_RECSRC)
1078
1079 typedef struct mixer_info {
1080 char id[16];
1081 char name[32];
1082 int modify_counter;
1083 int fillers[10];
1084 } mixer_info;
1085
1086 #define SOUND_MIXER_INFO _IOR('M', 101, mixer_info)
1087
1088 #define LEFT_CHN 0
1089 #define RIGHT_CHN 1
1090
1091 /*
1092 * Level 2 event types for /dev/sequencer
1093 */
1094
1095 /*
1096 * The 4 most significant bits of byte 0 specify the class of
1097 * the event:
1098 *
1099 * 0x8X = system level events,
1100 * 0x9X = device/port specific events, event[1] = device/port,
1101 * The last 4 bits give the subtype:
1102 * 0x02 = Channel event (event[3] = chn).
1103 * 0x01 = note event (event[4] = note).
1104 * (0x01 is not used alone but always with bit 0x02).
1105 * event[2] = MIDI message code (0x80=note off etc.)
1106 *
1107 */
1108
1109 #define EV_SEQ_LOCAL 0x80
1110 #define EV_TIMING 0x81
1111 #define EV_CHN_COMMON 0x92
1112 #define EV_CHN_VOICE 0x93
1113 #define EV_SYSEX 0x94
1114 /*
1115 * Event types 200 to 220 are reserved for application use.
1116 * These numbers will not be used by the driver.
1117 */
1118
1119 /*
1120 * Events for event type EV_CHN_VOICE
1121 */
1122
1123 #define MIDI_NOTEOFF 0x80
1124 #define MIDI_NOTEON 0x90
1125 #define MIDI_KEY_PRESSURE 0xA0
1126
1127 /*
1128 * Events for event type EV_CHN_COMMON
1129 */
1130
1131 #define MIDI_CTL_CHANGE 0xB0
1132 #define MIDI_PGM_CHANGE 0xC0
1133 #define MIDI_CHN_PRESSURE 0xD0
1134 #define MIDI_PITCH_BEND 0xE0
1135
1136 #define MIDI_SYSTEM_PREFIX 0xF0
1137
1138 /*
1139 * Timer event types
1140 */
1141 #define TMR_WAIT_REL 1 /* Time relative to the prev time */
1142 #define TMR_WAIT_ABS 2 /* Absolute time since TMR_START */
1143 #define TMR_STOP 3
1144 #define TMR_START 4
1145 #define TMR_CONTINUE 5
1146 #define TMR_TEMPO 6
1147 #define TMR_ECHO 8
1148 #define TMR_CLOCK 9 /* MIDI clock */
1149 #define TMR_SPP 10 /* Song position pointer */
1150 #define TMR_TIMESIG 11 /* Time signature */
1151
1152 /*
1153 * Local event types
1154 */
1155 #define LOCL_STARTAUDIO 1
1156
1157 #if (!defined(_KERNEL) && !defined(INKERNEL)) || defined(USE_SEQ_MACROS)
1158 /*
1159 * Some convenience macros to simplify programming of the
1160 * /dev/sequencer interface
1161 *
1162 * These macros define the API which should be used when possible.
1163 */
1164
1165 #ifndef USE_SIMPLE_MACROS
1166 void seqbuf_dump(void); /* This function must be provided by programs */
1167
1168 /* Sample seqbuf_dump() implementation:
1169 *
1170 * SEQ_DEFINEBUF (2048); -- Defines a buffer for 2048 bytes
1171 *
1172 * int seqfd; -- The file descriptor for /dev/sequencer.
1173 *
1174 * void
1175 * seqbuf_dump ()
1176 * {
1177 * if (_seqbufptr)
1178 * if (write (seqfd, _seqbuf, _seqbufptr) == -1)
1179 * {
1180 * perror ("write /dev/sequencer");
1181 * exit (-1);
1182 * }
1183 * _seqbufptr = 0;
1184 * }
1185 */
1186
1187 #define SEQ_DEFINEBUF(len) \
1188 u_char _seqbuf[len]; int _seqbuflen = len;int _seqbufptr = 0
1189 #define SEQ_USE_EXTBUF() \
1190 extern u_char _seqbuf[]; \
1191 extern int _seqbuflen;extern int _seqbufptr
1192 #define SEQ_DECLAREBUF() SEQ_USE_EXTBUF()
1193 #define SEQ_PM_DEFINES struct patmgr_info _pm_info
1194 #define _SEQ_NEEDBUF(len) \
1195 if ((_seqbufptr+(len)) > _seqbuflen) \
1196 seqbuf_dump()
1197 #define _SEQ_ADVBUF(len) _seqbufptr += len
1198 #define SEQ_DUMPBUF seqbuf_dump
1199 #else
1200 /*
1201 * This variation of the sequencer macros is used just to format one event
1202 * using fixed buffer.
1203 *
1204 * The program using the macro library must define the following macros before
1205 * using this library.
1206 *
1207 * #define _seqbuf name of the buffer (u_char[])
1208 * #define _SEQ_ADVBUF(len) If the applic needs to know the exact
1209 * size of the event, this macro can be used.
1210 * Otherwise this must be defined as empty.
1211 * #define _seqbufptr Define the name of index variable or 0 if
1212 * not required.
1213 */
1214 #define _SEQ_NEEDBUF(len) /* empty */
1215 #endif
1216
1217 #define PM_LOAD_PATCH(dev, bank, pgm) \
1218 (SEQ_DUMPBUF(), _pm_info.command = _PM_LOAD_PATCH, \
1219 _pm_info.device=dev, _pm_info.data.data8[0]=pgm, \
1220 _pm_info.parm1 = bank, _pm_info.parm2 = 1, \
1221 ioctl(seqfd, SNDCTL_PMGR_ACCESS, &_pm_info))
1222 #define PM_LOAD_PATCHES(dev, bank, pgm) \
1223 (SEQ_DUMPBUF(), _pm_info.command = _PM_LOAD_PATCH, \
1224 _pm_info.device=dev, bcopy( pgm, _pm_info.data.data8, 128), \
1225 _pm_info.parm1 = bank, _pm_info.parm2 = 128, \
1226 ioctl(seqfd, SNDCTL_PMGR_ACCESS, &_pm_info))
1227
1228 #define SEQ_VOLUME_MODE(dev, mode) { \
1229 _SEQ_NEEDBUF(8);\
1230 _seqbuf[_seqbufptr] = SEQ_EXTENDED;\
1231 _seqbuf[_seqbufptr+1] = SEQ_VOLMODE;\
1232 _seqbuf[_seqbufptr+2] = (dev);\
1233 _seqbuf[_seqbufptr+3] = (mode);\
1234 _seqbuf[_seqbufptr+4] = 0;\
1235 _seqbuf[_seqbufptr+5] = 0;\
1236 _seqbuf[_seqbufptr+6] = 0;\
1237 _seqbuf[_seqbufptr+7] = 0;\
1238 _SEQ_ADVBUF(8);}
1239
1240 /*
1241 * Midi voice messages
1242 */
1243
1244 #define _CHN_VOICE(dev, event, chn, note, parm) { \
1245 _SEQ_NEEDBUF(8);\
1246 _seqbuf[_seqbufptr] = EV_CHN_VOICE;\
1247 _seqbuf[_seqbufptr+1] = (dev);\
1248 _seqbuf[_seqbufptr+2] = (event);\
1249 _seqbuf[_seqbufptr+3] = (chn);\
1250 _seqbuf[_seqbufptr+4] = (note);\
1251 _seqbuf[_seqbufptr+5] = (parm);\
1252 _seqbuf[_seqbufptr+6] = (0);\
1253 _seqbuf[_seqbufptr+7] = 0;\
1254 _SEQ_ADVBUF(8);}
1255
1256 #define SEQ_START_NOTE(dev, chn, note, vol) \
1257 _CHN_VOICE(dev, MIDI_NOTEON, chn, note, vol)
1258
1259 #define SEQ_STOP_NOTE(dev, chn, note, vol) \
1260 _CHN_VOICE(dev, MIDI_NOTEOFF, chn, note, vol)
1261
1262 #define SEQ_KEY_PRESSURE(dev, chn, note, pressure) \
1263 _CHN_VOICE(dev, MIDI_KEY_PRESSURE, chn, note, pressure)
1264
1265 /*
1266 * Midi channel messages
1267 */
1268
1269 #define _CHN_COMMON(dev, event, chn, p1, p2, w14) { \
1270 _SEQ_NEEDBUF(8);\
1271 _seqbuf[_seqbufptr] = EV_CHN_COMMON;\
1272 _seqbuf[_seqbufptr+1] = (dev);\
1273 _seqbuf[_seqbufptr+2] = (event);\
1274 _seqbuf[_seqbufptr+3] = (chn);\
1275 _seqbuf[_seqbufptr+4] = (p1);\
1276 _seqbuf[_seqbufptr+5] = (p2);\
1277 *(short *)&_seqbuf[_seqbufptr+6] = (w14);\
1278 _SEQ_ADVBUF(8);}
1279 /*
1280 * SEQ_SYSEX permits sending of sysex messages. (It may look that it permits
1281 * sending any MIDI bytes but it's absolutely not possible. Trying to do
1282 * so _will_ cause problems with MPU401 intelligent mode).
1283 *
1284 * Sysex messages are sent in blocks of 1 to 6 bytes. Longer messages must be
1285 * sent by calling SEQ_SYSEX() several times (there must be no other events
1286 * between them). First sysex fragment must have 0xf0 in the first byte
1287 * and the last byte (buf[len-1] of the last fragment must be 0xf7. No byte
1288 * between these sysex start and end markers cannot be larger than 0x7f. Also
1289 * lengths of each fragments (except the last one) must be 6.
1290 *
1291 * Breaking the above rules may work with some MIDI ports but is likely to
1292 * cause fatal problems with some other devices (such as MPU401).
1293 */
1294 #define SEQ_SYSEX(dev, buf, len) { \
1295 int i, l=(len); if (l>6)l=6;\
1296 _SEQ_NEEDBUF(8);\
1297 _seqbuf[_seqbufptr] = EV_SYSEX;\
1298 for(i=0;i<l;i++)_seqbuf[_seqbufptr+i+1] = (buf)[i];\
1299 for(i=l;i<6;i++)_seqbuf[_seqbufptr+i+1] = 0xff;\
1300 _SEQ_ADVBUF(8);}
1301
1302 #define SEQ_CHN_PRESSURE(dev, chn, pressure) \
1303 _CHN_COMMON(dev, MIDI_CHN_PRESSURE, chn, pressure, 0, 0)
1304
1305 #define SEQ_SET_PATCH(dev, chn, patch) \
1306 _CHN_COMMON(dev, MIDI_PGM_CHANGE, chn, patch, 0, 0)
1307
1308 #define SEQ_CONTROL(dev, chn, controller, value) \
1309 _CHN_COMMON(dev, MIDI_CTL_CHANGE, chn, controller, 0, value)
1310
1311 #define SEQ_BENDER(dev, chn, value) \
1312 _CHN_COMMON(dev, MIDI_PITCH_BEND, chn, 0, 0, value)
1313
1314
1315 #define SEQ_V2_X_CONTROL(dev, voice, controller, value) { \
1316 _SEQ_NEEDBUF(8);\
1317 _seqbuf[_seqbufptr] = SEQ_EXTENDED;\
1318 _seqbuf[_seqbufptr+1] = SEQ_CONTROLLER;\
1319 _seqbuf[_seqbufptr+2] = (dev);\
1320 _seqbuf[_seqbufptr+3] = (voice);\
1321 _seqbuf[_seqbufptr+4] = (controller);\
1322 *(short *)&_seqbuf[_seqbufptr+5] = (value);\
1323 _seqbuf[_seqbufptr+7] = 0;\
1324 _SEQ_ADVBUF(8);}
1325
1326 /*
1327 * The following 5 macros are incorrectly implemented and obsolete.
1328 * Use SEQ_BENDER and SEQ_CONTROL (with proper controller) instead.
1329 */
1330
1331 #define SEQ_PITCHBEND(dev, voice, value) \
1332 SEQ_V2_X_CONTROL(dev, voice, CTRL_PITCH_BENDER, value)
1333 #define SEQ_BENDER_RANGE(dev, voice, value) \
1334 SEQ_V2_X_CONTROL(dev, voice, CTRL_PITCH_BENDER_RANGE, value)
1335 #define SEQ_EXPRESSION(dev, voice, value) \
1336 SEQ_CONTROL(dev, voice, CTL_EXPRESSION, value*128)
1337 #define SEQ_MAIN_VOLUME(dev, voice, value) \
1338 SEQ_CONTROL(dev, voice, CTL_MAIN_VOLUME, (value*16383)/100)
1339 #define SEQ_PANNING(dev, voice, pos) \
1340 SEQ_CONTROL(dev, voice, CTL_PAN, (pos+128) / 2)
1341
1342 /*
1343 * Timing and syncronization macros
1344 */
1345
1346 #define _TIMER_EVENT(ev, parm) { \
1347 _SEQ_NEEDBUF(8);\
1348 _seqbuf[_seqbufptr+0] = EV_TIMING; \
1349 _seqbuf[_seqbufptr+1] = (ev); \
1350 _seqbuf[_seqbufptr+2] = 0;\
1351 _seqbuf[_seqbufptr+3] = 0;\
1352 *(u_int *)&_seqbuf[_seqbufptr+4] = (parm); \
1353 _SEQ_ADVBUF(8); \
1354 }
1355
1356 #define SEQ_START_TIMER() _TIMER_EVENT(TMR_START, 0)
1357 #define SEQ_STOP_TIMER() _TIMER_EVENT(TMR_STOP, 0)
1358 #define SEQ_CONTINUE_TIMER() _TIMER_EVENT(TMR_CONTINUE, 0)
1359 #define SEQ_WAIT_TIME(ticks) _TIMER_EVENT(TMR_WAIT_ABS, ticks)
1360 #define SEQ_DELTA_TIME(ticks) _TIMER_EVENT(TMR_WAIT_REL, ticks)
1361 #define SEQ_ECHO_BACK(key) _TIMER_EVENT(TMR_ECHO, key)
1362 #define SEQ_SET_TEMPO(value) _TIMER_EVENT(TMR_TEMPO, value)
1363 #define SEQ_SONGPOS(pos) _TIMER_EVENT(TMR_SPP, pos)
1364 #define SEQ_TIME_SIGNATURE(sig) _TIMER_EVENT(TMR_TIMESIG, sig)
1365
1366 /*
1367 * Local control events
1368 */
1369
1370 #define _LOCAL_EVENT(ev, parm) { \
1371 _SEQ_NEEDBUF(8);\
1372 _seqbuf[_seqbufptr+0] = EV_SEQ_LOCAL; \
1373 _seqbuf[_seqbufptr+1] = (ev); \
1374 _seqbuf[_seqbufptr+2] = 0;\
1375 _seqbuf[_seqbufptr+3] = 0;\
1376 *(u_int *)&_seqbuf[_seqbufptr+4] = (parm); \
1377 _SEQ_ADVBUF(8); \
1378 }
1379
1380 #define SEQ_PLAYAUDIO(devmask) _LOCAL_EVENT(LOCL_STARTAUDIO, devmask)
1381 /*
1382 * Events for the level 1 interface only
1383 */
1384
1385 #define SEQ_MIDIOUT(device, byte) { \
1386 _SEQ_NEEDBUF(4);\
1387 _seqbuf[_seqbufptr] = SEQ_MIDIPUTC;\
1388 _seqbuf[_seqbufptr+1] = (byte);\
1389 _seqbuf[_seqbufptr+2] = (device);\
1390 _seqbuf[_seqbufptr+3] = 0;\
1391 _SEQ_ADVBUF(4);}
1392
1393 /*
1394 * Patch loading.
1395 */
1396 #define SEQ_WRPATCH(patchx, len) { \
1397 if (_seqbufptr) seqbuf_dump(); \
1398 if (write(seqfd, (char*)(patchx), len)==-1) \
1399 perror("Write patch: /dev/sequencer"); \
1400 }
1401
1402 #define SEQ_WRPATCH2(patchx, len) \
1403 ( seqbuf_dump(), write(seqfd, (char*)(patchx), len) )
1404
1405 #endif
1406
1407 /*
1408 * Here I have moved all the aliases for ioctl names.
1409 */
1410
1411 #define SNDCTL_DSP_SAMPLESIZE SNDCTL_DSP_SETFMT
1412 #define SOUND_PCM_WRITE_BITS SNDCTL_DSP_SETFMT
1413 #define SOUND_PCM_SETFMT SNDCTL_DSP_SETFMT
1414
1415 #define SOUND_PCM_WRITE_RATE SNDCTL_DSP_SPEED
1416 #define SOUND_PCM_POST SNDCTL_DSP_POST
1417 #define SOUND_PCM_RESET SNDCTL_DSP_RESET
1418 #define SOUND_PCM_SYNC SNDCTL_DSP_SYNC
1419 #define SOUND_PCM_SUBDIVIDE SNDCTL_DSP_SUBDIVIDE
1420 #define SOUND_PCM_SETFRAGMENT SNDCTL_DSP_SETFRAGMENT
1421 #define SOUND_PCM_GETFMTS SNDCTL_DSP_GETFMTS
1422 #define SOUND_PCM_GETOSPACE SNDCTL_DSP_GETOSPACE
1423 #define SOUND_PCM_GETISPACE SNDCTL_DSP_GETISPACE
1424 #define SOUND_PCM_NONBLOCK SNDCTL_DSP_NONBLOCK
1425 #define SOUND_PCM_GETCAPS SNDCTL_DSP_GETCAPS
1426 #define SOUND_PCM_GETTRIGGER SNDCTL_DSP_GETTRIGGER
1427 #define SOUND_PCM_SETTRIGGER SNDCTL_DSP_SETTRIGGER
1428 #define SOUND_PCM_SETSYNCRO SNDCTL_DSP_SETSYNCRO
1429 #define SOUND_PCM_GETIPTR SNDCTL_DSP_GETIPTR
1430 #define SOUND_PCM_GETOPTR SNDCTL_DSP_GETOPTR
1431 #define SOUND_PCM_MAPINBUF SNDCTL_DSP_MAPINBUF
1432 #define SOUND_PCM_MAPOUTBUF SNDCTL_DSP_MAPOUTBUF
1433
1434 #endif /* !_SYS_SOUNDCARD_H_ */
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