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1 #ifndef SOUNDCARD_H
2 #define SOUNDCARD_H
3 /*
4  * Copyright by Hannu Savolainen 1993-1997
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions are
8  * met: 1. Redistributions of source code must retain the above copyright
9  * notice, this list of conditions and the following disclaimer. 2.
10  * Redistributions in binary form must reproduce the above copyright notice,
11  * this list of conditions and the following disclaimer in the documentation
12  * and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
18  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
20  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
21  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  */
26 
27 
28 /*
29  * OSS interface version. With versions earlier than 3.6 this value is
30  * an integer with value less than 361. In versions 3.6 and later
31  * it's a six digit hexadecimal value. For example value
32  * of 0x030600 represents OSS version 3.6.0.
33  * Use ioctl(fd, OSS_GETVERSION, &int) to get the version number of
34  * the currently active driver.
35  */
36 #define SOUND_VERSION	0x030802
37 #define OPEN_SOUND_SYSTEM
38 
39 /* In Linux we need to be prepared for cross compiling */
40 #include <linux/ioctl.h>
41 
42 /* Endian macros. */
43 #ifdef __KERNEL__
44 #  include <asm/byteorder.h>
45 #else
46 #  include <endian.h>
47 #endif
48 
49 /*
50  *	Supported card ID numbers (Should be somewhere else?)
51  */
52 
53 #define SNDCARD_ADLIB		1
54 #define SNDCARD_SB		2
55 #define SNDCARD_PAS		3
56 #define SNDCARD_GUS		4
57 #define SNDCARD_MPU401		5
58 #define SNDCARD_SB16		6
59 #define SNDCARD_SB16MIDI	7
60 #define SNDCARD_UART6850	8
61 #define SNDCARD_GUS16		9
62 #define SNDCARD_MSS		10
63 #define SNDCARD_PSS     	11
64 #define SNDCARD_SSCAPE		12
65 #define SNDCARD_PSS_MPU     	13
66 #define SNDCARD_PSS_MSS     	14
67 #define SNDCARD_SSCAPE_MSS	15
68 #define SNDCARD_TRXPRO		16
69 #define SNDCARD_TRXPRO_SB	17
70 #define SNDCARD_TRXPRO_MPU	18
71 #define SNDCARD_MAD16		19
72 #define SNDCARD_MAD16_MPU	20
73 #define SNDCARD_CS4232		21
74 #define SNDCARD_CS4232_MPU	22
75 #define SNDCARD_MAUI		23
76 #define SNDCARD_PSEUDO_MSS	24
77 #define SNDCARD_GUSPNP		25
78 #define SNDCARD_UART401		26
79 /* Sound card numbers 27 to N are reserved. Don't add more numbers here. */
80 
81 /***********************************
82  * IOCTL Commands for /dev/sequencer
83  */
84 
85 #ifndef _SIOWR
86 #if defined(_IOWR) && (defined(_AIX) || (!defined(sun) && !defined(sparc) && !defined(__sparc__) && !defined(__INCioctlh) && !defined(__Lynx__)))
87 /* Use already defined ioctl defines if they exist (except with Sun or Sparc) */
88 #define	SIOCPARM_MASK	IOCPARM_MASK
89 #define	SIOC_VOID	IOC_VOID
90 #define	SIOC_OUT	IOC_OUT
91 #define	SIOC_IN		IOC_IN
92 #define	SIOC_INOUT	IOC_INOUT
93 #define _SIOC_SIZE	_IOC_SIZE
94 #define _SIOC_DIR	_IOC_DIR
95 #define _SIOC_NONE	_IOC_NONE
96 #define _SIOC_READ	_IOC_READ
97 #define _SIOC_WRITE	_IOC_WRITE
98 #define	_SIO		_IO
99 #define	_SIOR		_IOR
100 #define	_SIOW		_IOW
101 #define	_SIOWR		_IOWR
102 #else
103 
104 /* Ioctl's have the command encoded in the lower word,
105  * and the size of any in or out parameters in the upper
106  * word.  The high 2 bits of the upper word are used
107  * to encode the in/out status of the parameter; for now
108  * we restrict parameters to at most 8191 bytes.
109  */
110 /* #define	SIOCTYPE		(0xff<<8) */
111 #define	SIOCPARM_MASK	0x1fff		/* parameters must be < 8192 bytes */
112 #define	SIOC_VOID	0x00000000	/* no parameters */
113 #define	SIOC_OUT	0x20000000	/* copy out parameters */
114 #define	SIOC_IN		0x40000000	/* copy in parameters */
115 #define	SIOC_INOUT	(SIOC_IN|SIOC_OUT)
116 /* the 0x20000000 is so we can distinguish new ioctl's from old */
117 #define	_SIO(x,y)	((int)(SIOC_VOID|(x<<8)|y))
118 #define	_SIOR(x,y,t)	((int)(SIOC_OUT|((sizeof(t)&SIOCPARM_MASK)<<16)|(x<<8)|y))
119 #define	_SIOW(x,y,t)	((int)(SIOC_IN|((sizeof(t)&SIOCPARM_MASK)<<16)|(x<<8)|y))
120 /* this should be _SIORW, but stdio got there first */
121 #define	_SIOWR(x,y,t)	((int)(SIOC_INOUT|((sizeof(t)&SIOCPARM_MASK)<<16)|(x<<8)|y))
122 #define _SIOC_SIZE(x)	((x>>16)&SIOCPARM_MASK)
123 #define _SIOC_DIR(x)	(x & 0xf0000000)
124 #define _SIOC_NONE	SIOC_VOID
125 #define _SIOC_READ	SIOC_OUT
126 #define _SIOC_WRITE	SIOC_IN
127 #  endif /* _IOWR */
128 #endif  /* !_SIOWR */
129 
130 #define SNDCTL_SEQ_RESET		_SIO  ('Q', 0)
131 #define SNDCTL_SEQ_SYNC			_SIO  ('Q', 1)
132 #define SNDCTL_SYNTH_INFO		_SIOWR('Q', 2, struct synth_info)
133 #define SNDCTL_SEQ_CTRLRATE		_SIOWR('Q', 3, int)	/* Set/get timer resolution (HZ) */
134 #define SNDCTL_SEQ_GETOUTCOUNT		_SIOR ('Q', 4, int)
135 #define SNDCTL_SEQ_GETINCOUNT		_SIOR ('Q', 5, int)
136 #define SNDCTL_SEQ_PERCMODE		_SIOW ('Q', 6, int)
137 #define SNDCTL_FM_LOAD_INSTR		_SIOW ('Q', 7, struct sbi_instrument)	/* Obsolete. Don't use!!!!!! */
138 #define SNDCTL_SEQ_TESTMIDI		_SIOW ('Q', 8, int)
139 #define SNDCTL_SEQ_RESETSAMPLES		_SIOW ('Q', 9, int)
140 #define SNDCTL_SEQ_NRSYNTHS		_SIOR ('Q',10, int)
141 #define SNDCTL_SEQ_NRMIDIS		_SIOR ('Q',11, int)
142 #define SNDCTL_MIDI_INFO		_SIOWR('Q',12, struct midi_info)
143 #define SNDCTL_SEQ_THRESHOLD		_SIOW ('Q',13, int)
144 #define SNDCTL_SYNTH_MEMAVL		_SIOWR('Q',14, int)	/* in=dev#, out=memsize */
145 #define SNDCTL_FM_4OP_ENABLE		_SIOW ('Q',15, int)	/* in=dev# */
146 #define SNDCTL_SEQ_PANIC		_SIO  ('Q',17)
147 #define SNDCTL_SEQ_OUTOFBAND		_SIOW ('Q',18, struct seq_event_rec)
148 #define SNDCTL_SEQ_GETTIME		_SIOR ('Q',19, int)
149 #define SNDCTL_SYNTH_ID			_SIOWR('Q',20, struct synth_info)
150 #define SNDCTL_SYNTH_CONTROL		_SIOWR('Q',21, struct synth_control)
151 #define SNDCTL_SYNTH_REMOVESAMPLE	_SIOWR('Q',22, struct remove_sample)
152 
153 typedef struct synth_control
154 {
155 	int devno;	/* Synthesizer # */
156 	char data[4000]; /* Device spesific command/data record */
157 }synth_control;
158 
159 typedef struct remove_sample
160 {
161 	int devno;	/* Synthesizer # */
162 	int bankno;	/* MIDI bank # (0=General MIDI) */
163 	int instrno;	/* MIDI instrument number */
164 } remove_sample;
165 
166 typedef struct seq_event_rec {
167 		unsigned char arr[8];
168 } seq_event_rec;
169 
170 #define SNDCTL_TMR_TIMEBASE		_SIOWR('T', 1, int)
171 #define SNDCTL_TMR_START		_SIO  ('T', 2)
172 #define SNDCTL_TMR_STOP			_SIO  ('T', 3)
173 #define SNDCTL_TMR_CONTINUE		_SIO  ('T', 4)
174 #define SNDCTL_TMR_TEMPO		_SIOWR('T', 5, int)
175 #define SNDCTL_TMR_SOURCE		_SIOWR('T', 6, int)
176 #	define TMR_INTERNAL		0x00000001
177 #	define TMR_EXTERNAL		0x00000002
178 #		define TMR_MODE_MIDI	0x00000010
179 #		define TMR_MODE_FSK	0x00000020
180 #		define TMR_MODE_CLS	0x00000040
181 #		define TMR_MODE_SMPTE	0x00000080
182 #define SNDCTL_TMR_METRONOME		_SIOW ('T', 7, int)
183 #define SNDCTL_TMR_SELECT		_SIOW ('T', 8, int)
184 
185 /*
186  * Some big endian/little endian handling macros
187  */
188 
189 #define _LINUX_PATCHKEY_H_INDIRECT
190 #include <linux/patchkey.h>
191 #undef _LINUX_PATCHKEY_H_INDIRECT
192 
193 #if defined(__KERNEL__)
194 #  if defined(__BIG_ENDIAN)
195 #    define AFMT_S16_NE AFMT_S16_BE
196 #  elif defined(__LITTLE_ENDIAN)
197 #    define AFMT_S16_NE AFMT_S16_LE
198 #  else
199 #    error "could not determine byte order"
200 #  endif
201 #elif defined(__BYTE_ORDER)
202 #  if __BYTE_ORDER == __BIG_ENDIAN
203 #    define AFMT_S16_NE AFMT_S16_BE
204 #  elif __BYTE_ORDER == __LITTLE_ENDIAN
205 #    define AFMT_S16_NE AFMT_S16_LE
206 #  else
207 #    error "could not determine byte order"
208 #  endif
209 #endif
210 
211 /*
212  *	Sample loading mechanism for internal synthesizers (/dev/sequencer)
213  *	The following patch_info structure has been designed to support
214  *	Gravis UltraSound. It tries to be universal format for uploading
215  *	sample based patches but is probably too limited.
216  *
217  *      (PBD) As Hannu guessed, the GUS structure is too limited for
218  *      the WaveFront, but this is the right place for a constant definition.
219  */
220 
221 struct patch_info {
222 		unsigned short key;		/* Use WAVE_PATCH here */
223 #define WAVE_PATCH	   _PATCHKEY(0x04)
224 #define GUS_PATCH	   WAVE_PATCH
225 #define WAVEFRONT_PATCH    _PATCHKEY(0x06)
226 
227 		short device_no;	/* Synthesizer number */
228 		short instr_no;		/* Midi pgm# */
229 
230 		unsigned int mode;
231 /*
232  * The least significant byte has the same format than the GUS .PAT
233  * files
234  */
235 #define WAVE_16_BITS	0x01	/* bit 0 = 8 or 16 bit wave data. */
236 #define WAVE_UNSIGNED	0x02	/* bit 1 = Signed - Unsigned data. */
237 #define WAVE_LOOPING	0x04	/* bit 2 = looping enabled-1. */
238 #define WAVE_BIDIR_LOOP	0x08	/* bit 3 = Set is bidirectional looping. */
239 #define WAVE_LOOP_BACK	0x10	/* bit 4 = Set is looping backward. */
240 #define WAVE_SUSTAIN_ON	0x20	/* bit 5 = Turn sustaining on. (Env. pts. 3)*/
241 #define WAVE_ENVELOPES	0x40	/* bit 6 = Enable envelopes - 1 */
242 #define WAVE_FAST_RELEASE 0x80	/* bit 7 = Shut off immediately after note off */
243 				/* 	(use the env_rate/env_offs fields). */
244 /* Linux specific bits */
245 #define WAVE_VIBRATO	0x00010000	/* The vibrato info is valid */
246 #define WAVE_TREMOLO	0x00020000	/* The tremolo info is valid */
247 #define WAVE_SCALE	0x00040000	/* The scaling info is valid */
248 #define WAVE_FRACTIONS	0x00080000	/* Fraction information is valid */
249 /* Reserved bits */
250 #define WAVE_ROM	0x40000000	/* For future use */
251 #define WAVE_MULAW	0x20000000	/* For future use */
252 /* Other bits must be zeroed */
253 
254 		int len;	/* Size of the wave data in bytes */
255 		int loop_start, loop_end; /* Byte offsets from the beginning */
256 
257 /*
258  * The base_freq and base_note fields are used when computing the
259  * playback speed for a note. The base_note defines the tone frequency
260  * which is heard if the sample is played using the base_freq as the
261  * playback speed.
262  *
263  * The low_note and high_note fields define the minimum and maximum note
264  * frequencies for which this sample is valid. It is possible to define
265  * more than one samples for an instrument number at the same time. The
266  * low_note and high_note fields are used to select the most suitable one.
267  *
268  * The fields base_note, high_note and low_note should contain
269  * the note frequency multiplied by 1000. For example value for the
270  * middle A is 440*1000.
271  */
272 
273 		unsigned int base_freq;
274 		unsigned int base_note;
275 		unsigned int high_note;
276 		unsigned int low_note;
277 		int panning;	/* -128=left, 127=right */
278 		int detuning;
279 
280 /*	New fields introduced in version 1.99.5	*/
281 
282        /* Envelope. Enabled by mode bit WAVE_ENVELOPES	*/
283 		unsigned char	env_rate[ 6 ];	 /* GUS HW ramping rate */
284 		unsigned char	env_offset[ 6 ]; /* 255 == 100% */
285 
286 	/*
287 	 * The tremolo, vibrato and scale info are not supported yet.
288 	 * Enable by setting the mode bits WAVE_TREMOLO, WAVE_VIBRATO or
289 	 * WAVE_SCALE
290 	 */
291 
292 		unsigned char	tremolo_sweep;
293 		unsigned char	tremolo_rate;
294 		unsigned char	tremolo_depth;
295 
296 		unsigned char	vibrato_sweep;
297 		unsigned char	vibrato_rate;
298 		unsigned char	vibrato_depth;
299 
300 		int		scale_frequency;
301 		unsigned int	scale_factor;		/* from 0 to 2048 or 0 to 2 */
302 
303 	        int		volume;
304 		int		fractions;
305 		int		reserved1;
306 	        int		spare[2];
307 		char data[1];	/* The waveform data starts here */
308 	};
309 
310 struct sysex_info {
311 		short key;		/* Use SYSEX_PATCH or MAUI_PATCH here */
312 #define SYSEX_PATCH	_PATCHKEY(0x05)
313 #define MAUI_PATCH	_PATCHKEY(0x06)
314 		short device_no;	/* Synthesizer number */
315 		int len;	/* Size of the sysex data in bytes */
316 		unsigned char data[1];	/* Sysex data starts here */
317 	};
318 
319 /*
320  * /dev/sequencer input events.
321  *
322  * The data written to the /dev/sequencer is a stream of events. Events
323  * are records of 4 or 8 bytes. The first byte defines the size.
324  * Any number of events can be written with a write call. There
325  * is a set of macros for sending these events. Use these macros if you
326  * want to maximize portability of your program.
327  *
328  * Events SEQ_WAIT, SEQ_MIDIPUTC and SEQ_ECHO. Are also input events.
329  * (All input events are currently 4 bytes long. Be prepared to support
330  * 8 byte events also. If you receive any event having first byte >= 128,
331  * it's a 8 byte event.
332  *
333  * The events are documented at the end of this file.
334  *
335  * Normal events (4 bytes)
336  * There is also a 8 byte version of most of the 4 byte events. The
337  * 8 byte one is recommended.
338  */
339 #define SEQ_NOTEOFF		0
340 #define SEQ_FMNOTEOFF		SEQ_NOTEOFF	/* Just old name */
341 #define SEQ_NOTEON		1
342 #define	SEQ_FMNOTEON		SEQ_NOTEON
343 #define SEQ_WAIT		TMR_WAIT_ABS
344 #define SEQ_PGMCHANGE		3
345 #define SEQ_FMPGMCHANGE		SEQ_PGMCHANGE
346 #define SEQ_SYNCTIMER		TMR_START
347 #define SEQ_MIDIPUTC		5
348 #define SEQ_DRUMON		6	/*** OBSOLETE ***/
349 #define SEQ_DRUMOFF		7	/*** OBSOLETE ***/
350 #define SEQ_ECHO		TMR_ECHO	/* For synching programs with output */
351 #define SEQ_AFTERTOUCH		9
352 #define SEQ_CONTROLLER		10
353 
354 /*******************************************
355  *	Midi controller numbers
356  *******************************************
357  * Controllers 0 to 31 (0x00 to 0x1f) and
358  * 32 to 63 (0x20 to 0x3f) are continuous
359  * controllers.
360  * In the MIDI 1.0 these controllers are sent using
361  * two messages. Controller numbers 0 to 31 are used
362  * to send the MSB and the controller numbers 32 to 63
363  * are for the LSB. Note that just 7 bits are used in MIDI bytes.
364  */
365 
366 #define	   CTL_BANK_SELECT		0x00
367 #define	   CTL_MODWHEEL			0x01
368 #define    CTL_BREATH			0x02
369 /*		undefined		0x03 */
370 #define    CTL_FOOT			0x04
371 #define    CTL_PORTAMENTO_TIME		0x05
372 #define    CTL_DATA_ENTRY		0x06
373 #define    CTL_MAIN_VOLUME		0x07
374 #define    CTL_BALANCE			0x08
375 /*		undefined		0x09 */
376 #define    CTL_PAN			0x0a
377 #define    CTL_EXPRESSION		0x0b
378 /*		undefined		0x0c */
379 /*		undefined		0x0d */
380 /*		undefined		0x0e */
381 /*		undefined		0x0f */
382 #define    CTL_GENERAL_PURPOSE1	0x10
383 #define    CTL_GENERAL_PURPOSE2	0x11
384 #define    CTL_GENERAL_PURPOSE3	0x12
385 #define    CTL_GENERAL_PURPOSE4	0x13
386 /*		undefined		0x14 - 0x1f */
387 
388 /*		undefined		0x20 */
389 /* The controller numbers 0x21 to 0x3f are reserved for the */
390 /* least significant bytes of the controllers 0x00 to 0x1f. */
391 /* These controllers are not recognised by the driver. */
392 
393 /* Controllers 64 to 69 (0x40 to 0x45) are on/off switches. */
394 /* 0=OFF and 127=ON (intermediate values are possible) */
395 #define    CTL_DAMPER_PEDAL		0x40
396 #define    CTL_SUSTAIN			0x40	/* Alias */
397 #define    CTL_HOLD			0x40	/* Alias */
398 #define    CTL_PORTAMENTO		0x41
399 #define    CTL_SOSTENUTO		0x42
400 #define    CTL_SOFT_PEDAL		0x43
401 /*		undefined		0x44 */
402 #define    CTL_HOLD2			0x45
403 /*		undefined		0x46 - 0x4f */
404 
405 #define    CTL_GENERAL_PURPOSE5	0x50
406 #define    CTL_GENERAL_PURPOSE6	0x51
407 #define    CTL_GENERAL_PURPOSE7	0x52
408 #define    CTL_GENERAL_PURPOSE8	0x53
409 /*		undefined		0x54 - 0x5a */
410 #define    CTL_EXT_EFF_DEPTH		0x5b
411 #define    CTL_TREMOLO_DEPTH		0x5c
412 #define    CTL_CHORUS_DEPTH		0x5d
413 #define    CTL_DETUNE_DEPTH		0x5e
414 #define    CTL_CELESTE_DEPTH		0x5e	/* Alias for the above one */
415 #define    CTL_PHASER_DEPTH		0x5f
416 #define    CTL_DATA_INCREMENT		0x60
417 #define    CTL_DATA_DECREMENT		0x61
418 #define    CTL_NONREG_PARM_NUM_LSB	0x62
419 #define    CTL_NONREG_PARM_NUM_MSB	0x63
420 #define    CTL_REGIST_PARM_NUM_LSB	0x64
421 #define    CTL_REGIST_PARM_NUM_MSB	0x65
422 /*		undefined		0x66 - 0x78 */
423 /*		reserved		0x79 - 0x7f */
424 
425 /* Pseudo controllers (not midi compatible) */
426 #define    CTRL_PITCH_BENDER		255
427 #define    CTRL_PITCH_BENDER_RANGE	254
428 #define    CTRL_EXPRESSION		253	/* Obsolete */
429 #define    CTRL_MAIN_VOLUME		252	/* Obsolete */
430 #define SEQ_BALANCE		11
431 #define SEQ_VOLMODE             12
432 
433 /*
434  * Volume mode decides how volumes are used
435  */
436 
437 #define VOL_METHOD_ADAGIO	1
438 #define VOL_METHOD_LINEAR	2
439 
440 /*
441  * Note! SEQ_WAIT, SEQ_MIDIPUTC and SEQ_ECHO are used also as
442  *	 input events.
443  */
444 
445 /*
446  * Event codes 0xf0 to 0xfc are reserved for future extensions.
447  */
448 
449 #define SEQ_FULLSIZE		0xfd	/* Long events */
450 /*
451  *	SEQ_FULLSIZE events are used for loading patches/samples to the
452  *	synthesizer devices. These events are passed directly to the driver
453  *	of the associated synthesizer device. There is no limit to the size
454  *	of the extended events. These events are not queued but executed
455  *	immediately when the write() is called (execution can take several
456  *	seconds of time).
457  *
458  *	When a SEQ_FULLSIZE message is written to the device, it must
459  *	be written using exactly one write() call. Other events cannot
460  *	be mixed to the same write.
461  *
462  *	For FM synths (YM3812/OPL3) use struct sbi_instrument and write it to the
463  *	/dev/sequencer. Don't write other data together with the instrument structure
464  *	Set the key field of the structure to FM_PATCH. The device field is used to
465  *	route the patch to the corresponding device.
466  *
467  *	For wave table use struct patch_info. Initialize the key field
468  *      to WAVE_PATCH.
469  */
470 #define SEQ_PRIVATE		0xfe	/* Low level HW dependent events (8 bytes) */
471 #define SEQ_EXTENDED		0xff	/* Extended events (8 bytes) OBSOLETE */
472 
473 /*
474  * Record for FM patches
475  */
476 
477 typedef unsigned char sbi_instr_data[32];
478 
479 struct sbi_instrument {
480 		unsigned short	key;	/* FM_PATCH or OPL3_PATCH */
481 #define FM_PATCH	_PATCHKEY(0x01)
482 #define OPL3_PATCH	_PATCHKEY(0x03)
483 		short		device;		/*	Synth# (0-4)	*/
484 		int 		channel;	/*	Program# to be initialized 	*/
485 		sbi_instr_data	operators;	/*	Register settings for operator cells (.SBI format)	*/
486 	};
487 
488 struct synth_info {	/* Read only */
489 		char	name[30];
490 		int	device;		/* 0-N. INITIALIZE BEFORE CALLING */
491 		int	synth_type;
492 #define SYNTH_TYPE_FM			0
493 #define SYNTH_TYPE_SAMPLE		1
494 #define SYNTH_TYPE_MIDI			2	/* Midi interface */
495 
496 		int	synth_subtype;
497 #define FM_TYPE_ADLIB			0x00
498 #define FM_TYPE_OPL3			0x01
499 #define MIDI_TYPE_MPU401		0x401
500 
501 #define SAMPLE_TYPE_BASIC		0x10
502 #define SAMPLE_TYPE_GUS			SAMPLE_TYPE_BASIC
503 #define SAMPLE_TYPE_WAVEFRONT           0x11
504 
505 		int	perc_mode;	/* No longer supported */
506 		int	nr_voices;
507 		int	nr_drums;	/* Obsolete field */
508 		int	instr_bank_size;
509 		unsigned int	capabilities;
510 #define SYNTH_CAP_PERCMODE		0x00000001 /* No longer used */
511 #define SYNTH_CAP_OPL3			0x00000002 /* Set if OPL3 supported */
512 #define SYNTH_CAP_INPUT			0x00000004 /* Input (MIDI) device */
513 		int	dummies[19];	/* Reserve space */
514 	};
515 
516 struct sound_timer_info {
517 		char name[32];
518 		int caps;
519 	};
520 
521 #define MIDI_CAP_MPU401		1		/* MPU-401 intelligent mode */
522 
523 struct midi_info {
524 		char		name[30];
525 		int		device;		/* 0-N. INITIALIZE BEFORE CALLING */
526 		unsigned int	capabilities;	/* To be defined later */
527 		int		dev_type;
528 		int		dummies[18];	/* Reserve space */
529 	};
530 
531 /********************************************
532  * ioctl commands for the /dev/midi##
533  */
534 typedef struct {
535 		unsigned char cmd;
536 		char nr_args, nr_returns;
537 		unsigned char data[30];
538 	} mpu_command_rec;
539 
540 #define SNDCTL_MIDI_PRETIME		_SIOWR('m', 0, int)
541 #define SNDCTL_MIDI_MPUMODE		_SIOWR('m', 1, int)
542 #define SNDCTL_MIDI_MPUCMD		_SIOWR('m', 2, mpu_command_rec)
543 
544 /********************************************
545  * IOCTL commands for /dev/dsp and /dev/audio
546  */
547 
548 #define SNDCTL_DSP_RESET		_SIO  ('P', 0)
549 #define SNDCTL_DSP_SYNC			_SIO  ('P', 1)
550 #define SNDCTL_DSP_SPEED		_SIOWR('P', 2, int)
551 #define SNDCTL_DSP_STEREO		_SIOWR('P', 3, int)
552 #define SNDCTL_DSP_GETBLKSIZE		_SIOWR('P', 4, int)
553 #define SNDCTL_DSP_SAMPLESIZE		SNDCTL_DSP_SETFMT
554 #define SNDCTL_DSP_CHANNELS		_SIOWR('P', 6, int)
555 #define SOUND_PCM_WRITE_CHANNELS	SNDCTL_DSP_CHANNELS
556 #define SOUND_PCM_WRITE_FILTER		_SIOWR('P', 7, int)
557 #define SNDCTL_DSP_POST			_SIO  ('P', 8)
558 #define SNDCTL_DSP_SUBDIVIDE		_SIOWR('P', 9, int)
559 #define SNDCTL_DSP_SETFRAGMENT		_SIOWR('P',10, int)
560 
561 /*	Audio data formats (Note! U8=8 and S16_LE=16 for compatibility) */
562 #define SNDCTL_DSP_GETFMTS		_SIOR ('P',11, int) /* Returns a mask */
563 #define SNDCTL_DSP_SETFMT		_SIOWR('P',5, int) /* Selects ONE fmt*/
564 #	define AFMT_QUERY		0x00000000	/* Return current fmt */
565 #	define AFMT_MU_LAW		0x00000001
566 #	define AFMT_A_LAW		0x00000002
567 #	define AFMT_IMA_ADPCM		0x00000004
568 #	define AFMT_U8			0x00000008
569 #	define AFMT_S16_LE		0x00000010	/* Little endian signed 16*/
570 #	define AFMT_S16_BE		0x00000020	/* Big endian signed 16 */
571 #	define AFMT_S8			0x00000040
572 #	define AFMT_U16_LE		0x00000080	/* Little endian U16 */
573 #	define AFMT_U16_BE		0x00000100	/* Big endian U16 */
574 #	define AFMT_MPEG		0x00000200	/* MPEG (2) audio */
575 #	define AFMT_AC3		0x00000400	/* Dolby Digital AC3 */
576 
577 /*
578  * Buffer status queries.
579  */
580 typedef struct audio_buf_info {
581 			int fragments;	/* # of available fragments (partially usend ones not counted) */
582 			int fragstotal;	/* Total # of fragments allocated */
583 			int fragsize;	/* Size of a fragment in bytes */
584 
585 			int bytes;	/* Available space in bytes (includes partially used fragments) */
586 			/* Note! 'bytes' could be more than fragments*fragsize */
587 		} audio_buf_info;
588 
589 #define SNDCTL_DSP_GETOSPACE		_SIOR ('P',12, audio_buf_info)
590 #define SNDCTL_DSP_GETISPACE		_SIOR ('P',13, audio_buf_info)
591 #define SNDCTL_DSP_NONBLOCK		_SIO  ('P',14)
592 #define SNDCTL_DSP_GETCAPS		_SIOR ('P',15, int)
593 #	define DSP_CAP_REVISION		0x000000ff	/* Bits for revision level (0 to 255) */
594 #	define DSP_CAP_DUPLEX		0x00000100	/* Full duplex record/playback */
595 #	define DSP_CAP_REALTIME		0x00000200	/* Real time capability */
596 #	define DSP_CAP_BATCH		0x00000400	/* Device has some kind of */
597 							/* internal buffers which may */
598 							/* cause some delays and */
599 							/* decrease precision of timing */
600 #	define DSP_CAP_COPROC		0x00000800	/* Has a coprocessor */
601 							/* Sometimes it's a DSP */
602 							/* but usually not */
603 #	define DSP_CAP_TRIGGER		0x00001000	/* Supports SETTRIGGER */
604 #	define DSP_CAP_MMAP		0x00002000	/* Supports mmap() */
605 #	define DSP_CAP_MULTI		0x00004000	/* support multiple open */
606 #	define DSP_CAP_BIND		0x00008000	/* channel binding to front/rear/cneter/lfe */
607 
608 
609 #define SNDCTL_DSP_GETTRIGGER		_SIOR ('P',16, int)
610 #define SNDCTL_DSP_SETTRIGGER		_SIOW ('P',16, int)
611 #	define PCM_ENABLE_INPUT		0x00000001
612 #	define PCM_ENABLE_OUTPUT		0x00000002
613 
614 typedef struct count_info {
615 		int bytes;	/* Total # of bytes processed */
616 		int blocks;	/* # of fragment transitions since last time */
617 		int ptr;	/* Current DMA pointer value */
618 	} count_info;
619 
620 #define SNDCTL_DSP_GETIPTR		_SIOR ('P',17, count_info)
621 #define SNDCTL_DSP_GETOPTR		_SIOR ('P',18, count_info)
622 
623 typedef struct buffmem_desc {
624 		unsigned *buffer;
625 		int size;
626 	} buffmem_desc;
627 #define SNDCTL_DSP_MAPINBUF		_SIOR ('P', 19, buffmem_desc)
628 #define SNDCTL_DSP_MAPOUTBUF		_SIOR ('P', 20, buffmem_desc)
629 #define SNDCTL_DSP_SETSYNCRO		_SIO  ('P', 21)
630 #define SNDCTL_DSP_SETDUPLEX		_SIO  ('P', 22)
631 #define SNDCTL_DSP_GETODELAY		_SIOR ('P', 23, int)
632 
633 #define SNDCTL_DSP_GETCHANNELMASK		_SIOWR('P', 64, int)
634 #define SNDCTL_DSP_BIND_CHANNEL		_SIOWR('P', 65, int)
635 #	define DSP_BIND_QUERY		0x00000000
636 #	define DSP_BIND_FRONT		0x00000001
637 #	define DSP_BIND_SURR		0x00000002
638 #	define DSP_BIND_CENTER_LFE	0x00000004
639 #	define DSP_BIND_HANDSET		0x00000008
640 #	define DSP_BIND_MIC		0x00000010
641 #	define DSP_BIND_MODEM1		0x00000020
642 #	define DSP_BIND_MODEM2		0x00000040
643 #	define DSP_BIND_I2S		0x00000080
644 #	define DSP_BIND_SPDIF		0x00000100
645 
646 #define SNDCTL_DSP_SETSPDIF		_SIOW ('P', 66, int)
647 #define SNDCTL_DSP_GETSPDIF		_SIOR ('P', 67, int)
648 #	define SPDIF_PRO	0x0001
649 #	define SPDIF_N_AUD	0x0002
650 #	define SPDIF_COPY	0x0004
651 #	define SPDIF_PRE	0x0008
652 #	define SPDIF_CC		0x07f0
653 #	define SPDIF_L		0x0800
654 #	define SPDIF_DRS	0x4000
655 #	define SPDIF_V		0x8000
656 
657 /*
658  * Application's profile defines the way how playback underrun situations should be handled.
659  *
660  *	APF_NORMAL (the default) and APF_NETWORK make the driver to cleanup the
661  *	playback buffer whenever an underrun occurs. This consumes some time
662  *	prevents looping the existing buffer.
663  *	APF_CPUINTENS is intended to be set by CPU intensive applications which
664  *	are likely to run out of time occasionally. In this mode the buffer cleanup is
665  *	disabled which saves CPU time but also let's the previous buffer content to
666  *	be played during the "pause" after the underrun.
667  */
668 #define SNDCTL_DSP_PROFILE		_SIOW ('P', 23, int)
669 #define	  APF_NORMAL	0	/* Normal applications */
670 #define	  APF_NETWORK	1	/* Underruns probably caused by an "external" delay */
671 #define   APF_CPUINTENS 2	/* Underruns probably caused by "overheating" the CPU */
672 
673 #define SOUND_PCM_READ_RATE		_SIOR ('P', 2, int)
674 #define SOUND_PCM_READ_CHANNELS		_SIOR ('P', 6, int)
675 #define SOUND_PCM_READ_BITS		_SIOR ('P', 5, int)
676 #define SOUND_PCM_READ_FILTER		_SIOR ('P', 7, int)
677 
678 /* Some alias names */
679 #define SOUND_PCM_WRITE_BITS		SNDCTL_DSP_SETFMT
680 #define SOUND_PCM_WRITE_RATE		SNDCTL_DSP_SPEED
681 #define SOUND_PCM_POST			SNDCTL_DSP_POST
682 #define SOUND_PCM_RESET			SNDCTL_DSP_RESET
683 #define SOUND_PCM_SYNC			SNDCTL_DSP_SYNC
684 #define SOUND_PCM_SUBDIVIDE		SNDCTL_DSP_SUBDIVIDE
685 #define SOUND_PCM_SETFRAGMENT		SNDCTL_DSP_SETFRAGMENT
686 #define SOUND_PCM_GETFMTS		SNDCTL_DSP_GETFMTS
687 #define SOUND_PCM_SETFMT		SNDCTL_DSP_SETFMT
688 #define SOUND_PCM_GETOSPACE		SNDCTL_DSP_GETOSPACE
689 #define SOUND_PCM_GETISPACE		SNDCTL_DSP_GETISPACE
690 #define SOUND_PCM_NONBLOCK		SNDCTL_DSP_NONBLOCK
691 #define SOUND_PCM_GETCAPS		SNDCTL_DSP_GETCAPS
692 #define SOUND_PCM_GETTRIGGER		SNDCTL_DSP_GETTRIGGER
693 #define SOUND_PCM_SETTRIGGER		SNDCTL_DSP_SETTRIGGER
694 #define SOUND_PCM_SETSYNCRO		SNDCTL_DSP_SETSYNCRO
695 #define SOUND_PCM_GETIPTR		SNDCTL_DSP_GETIPTR
696 #define SOUND_PCM_GETOPTR		SNDCTL_DSP_GETOPTR
697 #define SOUND_PCM_MAPINBUF		SNDCTL_DSP_MAPINBUF
698 #define SOUND_PCM_MAPOUTBUF		SNDCTL_DSP_MAPOUTBUF
699 
700 /*
701  * ioctl calls to be used in communication with coprocessors and
702  * DSP chips.
703  */
704 
705 typedef struct copr_buffer {
706 		int command;	/* Set to 0 if not used */
707 		int flags;
708 #define CPF_NONE		0x0000
709 #define CPF_FIRST		0x0001	/* First block */
710 #define CPF_LAST		0x0002	/* Last block */
711 		int len;
712 		int offs;	/* If required by the device (0 if not used) */
713 
714 		unsigned char data[4000]; /* NOTE! 4000 is not 4k */
715 	} copr_buffer;
716 
717 typedef struct copr_debug_buf {
718 		int command;	/* Used internally. Set to 0 */
719 		int parm1;
720 		int parm2;
721 		int flags;
722 		int len;	/* Length of data in bytes */
723 	} copr_debug_buf;
724 
725 typedef struct copr_msg {
726 		int len;
727 		unsigned char data[4000];
728 	} copr_msg;
729 
730 #define SNDCTL_COPR_RESET             _SIO  ('C',  0)
731 #define SNDCTL_COPR_LOAD	      _SIOWR('C',  1, copr_buffer)
732 #define SNDCTL_COPR_RDATA	      _SIOWR('C',  2, copr_debug_buf)
733 #define SNDCTL_COPR_RCODE	      _SIOWR('C',  3, copr_debug_buf)
734 #define SNDCTL_COPR_WDATA	      _SIOW ('C',  4, copr_debug_buf)
735 #define SNDCTL_COPR_WCODE	      _SIOW ('C',  5, copr_debug_buf)
736 #define SNDCTL_COPR_RUN		      _SIOWR('C',  6, copr_debug_buf)
737 #define SNDCTL_COPR_HALT	      _SIOWR('C',  7, copr_debug_buf)
738 #define SNDCTL_COPR_SENDMSG	      _SIOWR('C',  8, copr_msg)
739 #define SNDCTL_COPR_RCVMSG	      _SIOR ('C',  9, copr_msg)
740 
741 /*********************************************
742  * IOCTL commands for /dev/mixer
743  */
744 
745 /*
746  * Mixer devices
747  *
748  * There can be up to 20 different analog mixer channels. The
749  * SOUND_MIXER_NRDEVICES gives the currently supported maximum.
750  * The SOUND_MIXER_READ_DEVMASK returns a bitmask which tells
751  * the devices supported by the particular mixer.
752  */
753 
754 #define SOUND_MIXER_NRDEVICES	25
755 #define SOUND_MIXER_VOLUME	0
756 #define SOUND_MIXER_BASS	1
757 #define SOUND_MIXER_TREBLE	2
758 #define SOUND_MIXER_SYNTH	3
759 #define SOUND_MIXER_PCM		4
760 #define SOUND_MIXER_SPEAKER	5
761 #define SOUND_MIXER_LINE	6
762 #define SOUND_MIXER_MIC		7
763 #define SOUND_MIXER_CD		8
764 #define SOUND_MIXER_IMIX	9	/*  Recording monitor  */
765 #define SOUND_MIXER_ALTPCM	10
766 #define SOUND_MIXER_RECLEV	11	/* Recording level */
767 #define SOUND_MIXER_IGAIN	12	/* Input gain */
768 #define SOUND_MIXER_OGAIN	13	/* Output gain */
769 /*
770  * The AD1848 codec and compatibles have three line level inputs
771  * (line, aux1 and aux2). Since each card manufacturer have assigned
772  * different meanings to these inputs, it's inpractical to assign
773  * specific meanings (line, cd, synth etc.) to them.
774  */
775 #define SOUND_MIXER_LINE1	14	/* Input source 1  (aux1) */
776 #define SOUND_MIXER_LINE2	15	/* Input source 2  (aux2) */
777 #define SOUND_MIXER_LINE3	16	/* Input source 3  (line) */
778 #define SOUND_MIXER_DIGITAL1	17	/* Digital (input) 1 */
779 #define SOUND_MIXER_DIGITAL2	18	/* Digital (input) 2 */
780 #define SOUND_MIXER_DIGITAL3	19	/* Digital (input) 3 */
781 #define SOUND_MIXER_PHONEIN	20	/* Phone input */
782 #define SOUND_MIXER_PHONEOUT	21	/* Phone output */
783 #define SOUND_MIXER_VIDEO	22	/* Video/TV (audio) in */
784 #define SOUND_MIXER_RADIO	23	/* Radio in */
785 #define SOUND_MIXER_MONITOR	24	/* Monitor (usually mic) volume */
786 
787 /* Some on/off settings (SOUND_SPECIAL_MIN - SOUND_SPECIAL_MAX) */
788 /* Not counted to SOUND_MIXER_NRDEVICES, but use the same number space */
789 #define SOUND_ONOFF_MIN		28
790 #define SOUND_ONOFF_MAX		30
791 
792 /* Note!	Number 31 cannot be used since the sign bit is reserved */
793 #define SOUND_MIXER_NONE	31
794 
795 /*
796  * The following unsupported macros are no longer functional.
797  * Use SOUND_MIXER_PRIVATE# macros in future.
798  */
799 #define SOUND_MIXER_ENHANCE	SOUND_MIXER_NONE
800 #define SOUND_MIXER_MUTE	SOUND_MIXER_NONE
801 #define SOUND_MIXER_LOUD	SOUND_MIXER_NONE
802 
803 
804 #define SOUND_DEVICE_LABELS	{"Vol  ", "Bass ", "Trebl", "Synth", "Pcm  ", "Spkr ", "Line ", \
805 				 "Mic  ", "CD   ", "Mix  ", "Pcm2 ", "Rec  ", "IGain", "OGain", \
806 				 "Line1", "Line2", "Line3", "Digital1", "Digital2", "Digital3", \
807 				 "PhoneIn", "PhoneOut", "Video", "Radio", "Monitor"}
808 
809 #define SOUND_DEVICE_NAMES	{"vol", "bass", "treble", "synth", "pcm", "speaker", "line", \
810 				 "mic", "cd", "mix", "pcm2", "rec", "igain", "ogain", \
811 				 "line1", "line2", "line3", "dig1", "dig2", "dig3", \
812 				 "phin", "phout", "video", "radio", "monitor"}
813 
814 /*	Device bitmask identifiers	*/
815 
816 #define SOUND_MIXER_RECSRC	0xff	/* Arg contains a bit for each recording source */
817 #define SOUND_MIXER_DEVMASK	0xfe	/* Arg contains a bit for each supported device */
818 #define SOUND_MIXER_RECMASK	0xfd	/* Arg contains a bit for each supported recording source */
819 #define SOUND_MIXER_CAPS	0xfc
820 #	define SOUND_CAP_EXCL_INPUT	0x00000001	/* Only one recording source at a time */
821 #define SOUND_MIXER_STEREODEVS	0xfb	/* Mixer channels supporting stereo */
822 #define SOUND_MIXER_OUTSRC	0xfa	/* Arg contains a bit for each input source to output */
823 #define SOUND_MIXER_OUTMASK	0xf9	/* Arg contains a bit for each supported input source to output */
824 
825 /*	Device mask bits	*/
826 
827 #define SOUND_MASK_VOLUME	(1 << SOUND_MIXER_VOLUME)
828 #define SOUND_MASK_BASS		(1 << SOUND_MIXER_BASS)
829 #define SOUND_MASK_TREBLE	(1 << SOUND_MIXER_TREBLE)
830 #define SOUND_MASK_SYNTH	(1 << SOUND_MIXER_SYNTH)
831 #define SOUND_MASK_PCM		(1 << SOUND_MIXER_PCM)
832 #define SOUND_MASK_SPEAKER	(1 << SOUND_MIXER_SPEAKER)
833 #define SOUND_MASK_LINE		(1 << SOUND_MIXER_LINE)
834 #define SOUND_MASK_MIC		(1 << SOUND_MIXER_MIC)
835 #define SOUND_MASK_CD		(1 << SOUND_MIXER_CD)
836 #define SOUND_MASK_IMIX		(1 << SOUND_MIXER_IMIX)
837 #define SOUND_MASK_ALTPCM	(1 << SOUND_MIXER_ALTPCM)
838 #define SOUND_MASK_RECLEV	(1 << SOUND_MIXER_RECLEV)
839 #define SOUND_MASK_IGAIN	(1 << SOUND_MIXER_IGAIN)
840 #define SOUND_MASK_OGAIN	(1 << SOUND_MIXER_OGAIN)
841 #define SOUND_MASK_LINE1	(1 << SOUND_MIXER_LINE1)
842 #define SOUND_MASK_LINE2	(1 << SOUND_MIXER_LINE2)
843 #define SOUND_MASK_LINE3	(1 << SOUND_MIXER_LINE3)
844 #define SOUND_MASK_DIGITAL1	(1 << SOUND_MIXER_DIGITAL1)
845 #define SOUND_MASK_DIGITAL2	(1 << SOUND_MIXER_DIGITAL2)
846 #define SOUND_MASK_DIGITAL3	(1 << SOUND_MIXER_DIGITAL3)
847 #define SOUND_MASK_PHONEIN	(1 << SOUND_MIXER_PHONEIN)
848 #define SOUND_MASK_PHONEOUT	(1 << SOUND_MIXER_PHONEOUT)
849 #define SOUND_MASK_RADIO	(1 << SOUND_MIXER_RADIO)
850 #define SOUND_MASK_VIDEO	(1 << SOUND_MIXER_VIDEO)
851 #define SOUND_MASK_MONITOR	(1 << SOUND_MIXER_MONITOR)
852 
853 /* Obsolete macros */
854 #define SOUND_MASK_MUTE		(1 << SOUND_MIXER_MUTE)
855 #define SOUND_MASK_ENHANCE	(1 << SOUND_MIXER_ENHANCE)
856 #define SOUND_MASK_LOUD		(1 << SOUND_MIXER_LOUD)
857 
858 #define MIXER_READ(dev)		_SIOR('M', dev, int)
859 #define SOUND_MIXER_READ_VOLUME		MIXER_READ(SOUND_MIXER_VOLUME)
860 #define SOUND_MIXER_READ_BASS		MIXER_READ(SOUND_MIXER_BASS)
861 #define SOUND_MIXER_READ_TREBLE		MIXER_READ(SOUND_MIXER_TREBLE)
862 #define SOUND_MIXER_READ_SYNTH		MIXER_READ(SOUND_MIXER_SYNTH)
863 #define SOUND_MIXER_READ_PCM		MIXER_READ(SOUND_MIXER_PCM)
864 #define SOUND_MIXER_READ_SPEAKER	MIXER_READ(SOUND_MIXER_SPEAKER)
865 #define SOUND_MIXER_READ_LINE		MIXER_READ(SOUND_MIXER_LINE)
866 #define SOUND_MIXER_READ_MIC		MIXER_READ(SOUND_MIXER_MIC)
867 #define SOUND_MIXER_READ_CD		MIXER_READ(SOUND_MIXER_CD)
868 #define SOUND_MIXER_READ_IMIX		MIXER_READ(SOUND_MIXER_IMIX)
869 #define SOUND_MIXER_READ_ALTPCM		MIXER_READ(SOUND_MIXER_ALTPCM)
870 #define SOUND_MIXER_READ_RECLEV		MIXER_READ(SOUND_MIXER_RECLEV)
871 #define SOUND_MIXER_READ_IGAIN		MIXER_READ(SOUND_MIXER_IGAIN)
872 #define SOUND_MIXER_READ_OGAIN		MIXER_READ(SOUND_MIXER_OGAIN)
873 #define SOUND_MIXER_READ_LINE1		MIXER_READ(SOUND_MIXER_LINE1)
874 #define SOUND_MIXER_READ_LINE2		MIXER_READ(SOUND_MIXER_LINE2)
875 #define SOUND_MIXER_READ_LINE3		MIXER_READ(SOUND_MIXER_LINE3)
876 
877 /* Obsolete macros */
878 #define SOUND_MIXER_READ_MUTE		MIXER_READ(SOUND_MIXER_MUTE)
879 #define SOUND_MIXER_READ_ENHANCE	MIXER_READ(SOUND_MIXER_ENHANCE)
880 #define SOUND_MIXER_READ_LOUD		MIXER_READ(SOUND_MIXER_LOUD)
881 
882 #define SOUND_MIXER_READ_RECSRC		MIXER_READ(SOUND_MIXER_RECSRC)
883 #define SOUND_MIXER_READ_DEVMASK	MIXER_READ(SOUND_MIXER_DEVMASK)
884 #define SOUND_MIXER_READ_RECMASK	MIXER_READ(SOUND_MIXER_RECMASK)
885 #define SOUND_MIXER_READ_STEREODEVS	MIXER_READ(SOUND_MIXER_STEREODEVS)
886 #define SOUND_MIXER_READ_CAPS		MIXER_READ(SOUND_MIXER_CAPS)
887 
888 #define MIXER_WRITE(dev)		_SIOWR('M', dev, int)
889 #define SOUND_MIXER_WRITE_VOLUME	MIXER_WRITE(SOUND_MIXER_VOLUME)
890 #define SOUND_MIXER_WRITE_BASS		MIXER_WRITE(SOUND_MIXER_BASS)
891 #define SOUND_MIXER_WRITE_TREBLE	MIXER_WRITE(SOUND_MIXER_TREBLE)
892 #define SOUND_MIXER_WRITE_SYNTH		MIXER_WRITE(SOUND_MIXER_SYNTH)
893 #define SOUND_MIXER_WRITE_PCM		MIXER_WRITE(SOUND_MIXER_PCM)
894 #define SOUND_MIXER_WRITE_SPEAKER	MIXER_WRITE(SOUND_MIXER_SPEAKER)
895 #define SOUND_MIXER_WRITE_LINE		MIXER_WRITE(SOUND_MIXER_LINE)
896 #define SOUND_MIXER_WRITE_MIC		MIXER_WRITE(SOUND_MIXER_MIC)
897 #define SOUND_MIXER_WRITE_CD		MIXER_WRITE(SOUND_MIXER_CD)
898 #define SOUND_MIXER_WRITE_IMIX		MIXER_WRITE(SOUND_MIXER_IMIX)
899 #define SOUND_MIXER_WRITE_ALTPCM	MIXER_WRITE(SOUND_MIXER_ALTPCM)
900 #define SOUND_MIXER_WRITE_RECLEV	MIXER_WRITE(SOUND_MIXER_RECLEV)
901 #define SOUND_MIXER_WRITE_IGAIN		MIXER_WRITE(SOUND_MIXER_IGAIN)
902 #define SOUND_MIXER_WRITE_OGAIN		MIXER_WRITE(SOUND_MIXER_OGAIN)
903 #define SOUND_MIXER_WRITE_LINE1		MIXER_WRITE(SOUND_MIXER_LINE1)
904 #define SOUND_MIXER_WRITE_LINE2		MIXER_WRITE(SOUND_MIXER_LINE2)
905 #define SOUND_MIXER_WRITE_LINE3		MIXER_WRITE(SOUND_MIXER_LINE3)
906 
907 /* Obsolete macros */
908 #define SOUND_MIXER_WRITE_MUTE		MIXER_WRITE(SOUND_MIXER_MUTE)
909 #define SOUND_MIXER_WRITE_ENHANCE	MIXER_WRITE(SOUND_MIXER_ENHANCE)
910 #define SOUND_MIXER_WRITE_LOUD		MIXER_WRITE(SOUND_MIXER_LOUD)
911 
912 #define SOUND_MIXER_WRITE_RECSRC	MIXER_WRITE(SOUND_MIXER_RECSRC)
913 
914 typedef struct mixer_info
915 {
916   char id[16];
917   char name[32];
918   int  modify_counter;
919   int fillers[10];
920 } mixer_info;
921 
922 typedef struct _old_mixer_info /* Obsolete */
923 {
924   char id[16];
925   char name[32];
926 } _old_mixer_info;
927 
928 #define SOUND_MIXER_INFO		_SIOR ('M', 101, mixer_info)
929 #define SOUND_OLD_MIXER_INFO		_SIOR ('M', 101, _old_mixer_info)
930 
931 /*
932  * A mechanism for accessing "proprietary" mixer features. This method
933  * permits passing 128 bytes of arbitrary data between a mixer application
934  * and the mixer driver. Interpretation of the record is defined by
935  * the particular mixer driver.
936  */
937 typedef unsigned char mixer_record[128];
938 
939 #define SOUND_MIXER_ACCESS		_SIOWR('M', 102, mixer_record)
940 
941 /*
942  * Two ioctls for special souncard function
943  */
944 #define SOUND_MIXER_AGC  _SIOWR('M', 103, int)
945 #define SOUND_MIXER_3DSE  _SIOWR('M', 104, int)
946 
947 /*
948  * The SOUND_MIXER_PRIVATE# commands can be redefined by low level drivers.
949  * These features can be used when accessing device specific features.
950  */
951 #define SOUND_MIXER_PRIVATE1		_SIOWR('M', 111, int)
952 #define SOUND_MIXER_PRIVATE2		_SIOWR('M', 112, int)
953 #define SOUND_MIXER_PRIVATE3		_SIOWR('M', 113, int)
954 #define SOUND_MIXER_PRIVATE4		_SIOWR('M', 114, int)
955 #define SOUND_MIXER_PRIVATE5		_SIOWR('M', 115, int)
956 
957 /*
958  * SOUND_MIXER_GETLEVELS and SOUND_MIXER_SETLEVELS calls can be used
959  * for querying current mixer settings from the driver and for loading
960  * default volume settings _prior_ activating the mixer (loading
961  * doesn't affect current state of the mixer hardware). These calls
962  * are for internal use only.
963  */
964 
965 typedef struct mixer_vol_table {
966   int num;	/* Index to volume table */
967   char name[32];
968   int levels[32];
969 } mixer_vol_table;
970 
971 #define SOUND_MIXER_GETLEVELS		_SIOWR('M', 116, mixer_vol_table)
972 #define SOUND_MIXER_SETLEVELS		_SIOWR('M', 117, mixer_vol_table)
973 
974 /*
975  * An ioctl for identifying the driver version. It will return value
976  * of the SOUND_VERSION macro used when compiling the driver.
977  * This call was introduced in OSS version 3.6 and it will not work
978  * with earlier versions (returns EINVAL).
979  */
980 #define OSS_GETVERSION			_SIOR ('M', 118, int)
981 
982 /*
983  * Level 2 event types for /dev/sequencer
984  */
985 
986 /*
987  * The 4 most significant bits of byte 0 specify the class of
988  * the event:
989  *
990  *	0x8X = system level events,
991  *	0x9X = device/port specific events, event[1] = device/port,
992  *		The last 4 bits give the subtype:
993  *			0x02	= Channel event (event[3] = chn).
994  *			0x01	= note event (event[4] = note).
995  *			(0x01 is not used alone but always with bit 0x02).
996  *	       event[2] = MIDI message code (0x80=note off etc.)
997  *
998  */
999 
1000 #define EV_SEQ_LOCAL		0x80
1001 #define EV_TIMING		0x81
1002 #define EV_CHN_COMMON		0x92
1003 #define EV_CHN_VOICE		0x93
1004 #define EV_SYSEX		0x94
1005 /*
1006  * Event types 200 to 220 are reserved for application use.
1007  * These numbers will not be used by the driver.
1008  */
1009 
1010 /*
1011  * Events for event type EV_CHN_VOICE
1012  */
1013 
1014 #define MIDI_NOTEOFF		0x80
1015 #define MIDI_NOTEON		0x90
1016 #define MIDI_KEY_PRESSURE	0xA0
1017 
1018 /*
1019  * Events for event type EV_CHN_COMMON
1020  */
1021 
1022 #define MIDI_CTL_CHANGE		0xB0
1023 #define MIDI_PGM_CHANGE		0xC0
1024 #define MIDI_CHN_PRESSURE	0xD0
1025 #define MIDI_PITCH_BEND		0xE0
1026 
1027 #define MIDI_SYSTEM_PREFIX	0xF0
1028 
1029 /*
1030  * Timer event types
1031  */
1032 #define TMR_WAIT_REL		1	/* Time relative to the prev time */
1033 #define TMR_WAIT_ABS		2	/* Absolute time since TMR_START */
1034 #define TMR_STOP		3
1035 #define TMR_START		4
1036 #define TMR_CONTINUE		5
1037 #define TMR_TEMPO		6
1038 #define TMR_ECHO		8
1039 #define TMR_CLOCK		9	/* MIDI clock */
1040 #define TMR_SPP			10	/* Song position pointer */
1041 #define TMR_TIMESIG		11	/* Time signature */
1042 
1043 /*
1044  *	Local event types
1045  */
1046 #define LOCL_STARTAUDIO		1
1047 
1048 #if (!defined(__KERNEL__) && !defined(KERNEL) && !defined(INKERNEL) && !defined(_KERNEL)) || defined(USE_SEQ_MACROS)
1049 /*
1050  *	Some convenience macros to simplify programming of the
1051  *	/dev/sequencer interface
1052  *
1053  *	These macros define the API which should be used when possible.
1054  */
1055 #define SEQ_DECLAREBUF()		SEQ_USE_EXTBUF()
1056 
1057 void seqbuf_dump(void);	/* This function must be provided by programs */
1058 
1059 extern int OSS_init(int seqfd, int buflen);
1060 extern void OSS_seqbuf_dump(int fd, unsigned char *buf, int buflen);
1061 extern void OSS_seq_advbuf(int len, int fd, unsigned char *buf, int buflen);
1062 extern void OSS_seq_needbuf(int len, int fd, unsigned char *buf, int buflen);
1063 extern void OSS_patch_caching(int dev, int chn, int patch,
1064 			      int fd, unsigned char *buf, int buflen);
1065 extern void OSS_drum_caching(int dev, int chn, int patch,
1066 			      int fd, unsigned char *buf, int buflen);
1067 extern void OSS_write_patch(int fd, unsigned char *buf, int len);
1068 extern int OSS_write_patch2(int fd, unsigned char *buf, int len);
1069 
1070 #define SEQ_PM_DEFINES int __foo_bar___
1071 #ifdef OSSLIB
1072 #  define SEQ_USE_EXTBUF() \
1073 		extern unsigned char *_seqbuf; \
1074 		extern int _seqbuflen;extern int _seqbufptr
1075 #  define SEQ_DEFINEBUF(len) SEQ_USE_EXTBUF();static int _requested_seqbuflen=len
1076 #  define _SEQ_ADVBUF(len) OSS_seq_advbuf(len, seqfd, _seqbuf, _seqbuflen)
1077 #  define _SEQ_NEEDBUF(len) OSS_seq_needbuf(len, seqfd, _seqbuf, _seqbuflen)
1078 #  define SEQ_DUMPBUF() OSS_seqbuf_dump(seqfd, _seqbuf, _seqbuflen)
1079 
1080 #  define SEQ_LOAD_GMINSTR(dev, instr) \
1081 		OSS_patch_caching(dev, -1, instr, seqfd, _seqbuf, _seqbuflen)
1082 #  define SEQ_LOAD_GMDRUM(dev, drum) \
1083 		OSS_drum_caching(dev, -1, drum, seqfd, _seqbuf, _seqbuflen)
1084 #else /* !OSSLIB */
1085 
1086 #  define SEQ_LOAD_GMINSTR(dev, instr)
1087 #  define SEQ_LOAD_GMDRUM(dev, drum)
1088 
1089 #  define SEQ_USE_EXTBUF() \
1090 		extern unsigned char _seqbuf[]; \
1091 		extern int _seqbuflen;extern int _seqbufptr
1092 
1093 #ifndef USE_SIMPLE_MACROS
1094 /* Sample seqbuf_dump() implementation:
1095  *
1096  *	SEQ_DEFINEBUF (2048);	-- Defines a buffer for 2048 bytes
1097  *
1098  *	int seqfd;		-- The file descriptor for /dev/sequencer.
1099  *
1100  *	void
1101  *	seqbuf_dump ()
1102  *	{
1103  *	  if (_seqbufptr)
1104  *	    if (write (seqfd, _seqbuf, _seqbufptr) == -1)
1105  *	      {
1106  *		perror ("write /dev/sequencer");
1107  *		exit (-1);
1108  *	      }
1109  *	  _seqbufptr = 0;
1110  *	}
1111  */
1112 
1113 #define SEQ_DEFINEBUF(len)		unsigned char _seqbuf[len]; int _seqbuflen = len;int _seqbufptr = 0
1114 #define _SEQ_NEEDBUF(len)		if ((_seqbufptr+(len)) > _seqbuflen) seqbuf_dump()
1115 #define _SEQ_ADVBUF(len)		_seqbufptr += len
1116 #define SEQ_DUMPBUF			seqbuf_dump
1117 #else
1118 /*
1119  * This variation of the sequencer macros is used just to format one event
1120  * using fixed buffer.
1121  *
1122  * The program using the macro library must define the following macros before
1123  * using this library.
1124  *
1125  * #define _seqbuf 		 name of the buffer (unsigned char[])
1126  * #define _SEQ_ADVBUF(len)	 If the applic needs to know the exact
1127  *				 size of the event, this macro can be used.
1128  *				 Otherwise this must be defined as empty.
1129  * #define _seqbufptr		 Define the name of index variable or 0 if
1130  *				 not required.
1131  */
1132 #define _SEQ_NEEDBUF(len)	/* empty */
1133 #endif
1134 #endif /* !OSSLIB */
1135 
1136 #define SEQ_VOLUME_MODE(dev, mode)	{_SEQ_NEEDBUF(8);\
1137 					_seqbuf[_seqbufptr] = SEQ_EXTENDED;\
1138 					_seqbuf[_seqbufptr+1] = SEQ_VOLMODE;\
1139 					_seqbuf[_seqbufptr+2] = (dev);\
1140 					_seqbuf[_seqbufptr+3] = (mode);\
1141 					_seqbuf[_seqbufptr+4] = 0;\
1142 					_seqbuf[_seqbufptr+5] = 0;\
1143 					_seqbuf[_seqbufptr+6] = 0;\
1144 					_seqbuf[_seqbufptr+7] = 0;\
1145 					_SEQ_ADVBUF(8);}
1146 
1147 /*
1148  * Midi voice messages
1149  */
1150 
1151 #define _CHN_VOICE(dev, event, chn, note, parm) \
1152 					{_SEQ_NEEDBUF(8);\
1153 					_seqbuf[_seqbufptr] = EV_CHN_VOICE;\
1154 					_seqbuf[_seqbufptr+1] = (dev);\
1155 					_seqbuf[_seqbufptr+2] = (event);\
1156 					_seqbuf[_seqbufptr+3] = (chn);\
1157 					_seqbuf[_seqbufptr+4] = (note);\
1158 					_seqbuf[_seqbufptr+5] = (parm);\
1159 					_seqbuf[_seqbufptr+6] = (0);\
1160 					_seqbuf[_seqbufptr+7] = 0;\
1161 					_SEQ_ADVBUF(8);}
1162 
1163 #define SEQ_START_NOTE(dev, chn, note, vol) \
1164 		_CHN_VOICE(dev, MIDI_NOTEON, chn, note, vol)
1165 
1166 #define SEQ_STOP_NOTE(dev, chn, note, vol) \
1167 		_CHN_VOICE(dev, MIDI_NOTEOFF, chn, note, vol)
1168 
1169 #define SEQ_KEY_PRESSURE(dev, chn, note, pressure) \
1170 		_CHN_VOICE(dev, MIDI_KEY_PRESSURE, chn, note, pressure)
1171 
1172 /*
1173  * Midi channel messages
1174  */
1175 
1176 #define _CHN_COMMON(dev, event, chn, p1, p2, w14) \
1177 					{_SEQ_NEEDBUF(8);\
1178 					_seqbuf[_seqbufptr] = EV_CHN_COMMON;\
1179 					_seqbuf[_seqbufptr+1] = (dev);\
1180 					_seqbuf[_seqbufptr+2] = (event);\
1181 					_seqbuf[_seqbufptr+3] = (chn);\
1182 					_seqbuf[_seqbufptr+4] = (p1);\
1183 					_seqbuf[_seqbufptr+5] = (p2);\
1184 					*(short *)&_seqbuf[_seqbufptr+6] = (w14);\
1185 					_SEQ_ADVBUF(8);}
1186 /*
1187  * SEQ_SYSEX permits sending of sysex messages. (It may look that it permits
1188  * sending any MIDI bytes but it's absolutely not possible. Trying to do
1189  * so _will_ cause problems with MPU401 intelligent mode).
1190  *
1191  * Sysex messages are sent in blocks of 1 to 6 bytes. Longer messages must be
1192  * sent by calling SEQ_SYSEX() several times (there must be no other events
1193  * between them). First sysex fragment must have 0xf0 in the first byte
1194  * and the last byte (buf[len-1] of the last fragment must be 0xf7. No byte
1195  * between these sysex start and end markers cannot be larger than 0x7f. Also
1196  * lengths of each fragments (except the last one) must be 6.
1197  *
1198  * Breaking the above rules may work with some MIDI ports but is likely to
1199  * cause fatal problems with some other devices (such as MPU401).
1200  */
1201 #define SEQ_SYSEX(dev, buf, len) \
1202 					{int ii, ll=(len); \
1203 					 unsigned char *bufp=buf;\
1204 					 if (ll>6)ll=6;\
1205 					_SEQ_NEEDBUF(8);\
1206 					_seqbuf[_seqbufptr] = EV_SYSEX;\
1207 					_seqbuf[_seqbufptr+1] = (dev);\
1208 					for(ii=0;ii<ll;ii++)\
1209 					   _seqbuf[_seqbufptr+ii+2] = bufp[ii];\
1210 					for(ii=ll;ii<6;ii++)\
1211 					   _seqbuf[_seqbufptr+ii+2] = 0xff;\
1212 					_SEQ_ADVBUF(8);}
1213 
1214 #define SEQ_CHN_PRESSURE(dev, chn, pressure) \
1215 		_CHN_COMMON(dev, MIDI_CHN_PRESSURE, chn, pressure, 0, 0)
1216 
1217 #define SEQ_SET_PATCH SEQ_PGM_CHANGE
1218 #ifdef OSSLIB
1219 #   define SEQ_PGM_CHANGE(dev, chn, patch) \
1220 		{OSS_patch_caching(dev, chn, patch, seqfd, _seqbuf, _seqbuflen); \
1221 		 _CHN_COMMON(dev, MIDI_PGM_CHANGE, chn, patch, 0, 0);}
1222 #else
1223 #   define SEQ_PGM_CHANGE(dev, chn, patch) \
1224 		_CHN_COMMON(dev, MIDI_PGM_CHANGE, chn, patch, 0, 0)
1225 #endif
1226 
1227 #define SEQ_CONTROL(dev, chn, controller, value) \
1228 		_CHN_COMMON(dev, MIDI_CTL_CHANGE, chn, controller, 0, value)
1229 
1230 #define SEQ_BENDER(dev, chn, value) \
1231 		_CHN_COMMON(dev, MIDI_PITCH_BEND, chn, 0, 0, value)
1232 
1233 
1234 #define SEQ_V2_X_CONTROL(dev, voice, controller, value)	{_SEQ_NEEDBUF(8);\
1235 					_seqbuf[_seqbufptr] = SEQ_EXTENDED;\
1236 					_seqbuf[_seqbufptr+1] = SEQ_CONTROLLER;\
1237 					_seqbuf[_seqbufptr+2] = (dev);\
1238 					_seqbuf[_seqbufptr+3] = (voice);\
1239 					_seqbuf[_seqbufptr+4] = (controller);\
1240 					_seqbuf[_seqbufptr+5] = ((value)&0xff);\
1241 					_seqbuf[_seqbufptr+6] = ((value>>8)&0xff);\
1242 					_seqbuf[_seqbufptr+7] = 0;\
1243 					_SEQ_ADVBUF(8);}
1244 /*
1245  * The following 5 macros are incorrectly implemented and obsolete.
1246  * Use SEQ_BENDER and SEQ_CONTROL (with proper controller) instead.
1247  */
1248 #define SEQ_PITCHBEND(dev, voice, value) SEQ_V2_X_CONTROL(dev, voice, CTRL_PITCH_BENDER, value)
1249 #define SEQ_BENDER_RANGE(dev, voice, value) SEQ_V2_X_CONTROL(dev, voice, CTRL_PITCH_BENDER_RANGE, value)
1250 #define SEQ_EXPRESSION(dev, voice, value) SEQ_CONTROL(dev, voice, CTL_EXPRESSION, value*128)
1251 #define SEQ_MAIN_VOLUME(dev, voice, value) SEQ_CONTROL(dev, voice, CTL_MAIN_VOLUME, (value*16383)/100)
1252 #define SEQ_PANNING(dev, voice, pos) SEQ_CONTROL(dev, voice, CTL_PAN, (pos+128) / 2)
1253 
1254 /*
1255  * Timing and syncronization macros
1256  */
1257 
1258 #define _TIMER_EVENT(ev, parm)		{_SEQ_NEEDBUF(8);\
1259 				 	_seqbuf[_seqbufptr+0] = EV_TIMING; \
1260 				 	_seqbuf[_seqbufptr+1] = (ev); \
1261 					_seqbuf[_seqbufptr+2] = 0;\
1262 					_seqbuf[_seqbufptr+3] = 0;\
1263 				 	*(unsigned int *)&_seqbuf[_seqbufptr+4] = (parm); \
1264 					_SEQ_ADVBUF(8);}
1265 
1266 #define SEQ_START_TIMER()		_TIMER_EVENT(TMR_START, 0)
1267 #define SEQ_STOP_TIMER()		_TIMER_EVENT(TMR_STOP, 0)
1268 #define SEQ_CONTINUE_TIMER()		_TIMER_EVENT(TMR_CONTINUE, 0)
1269 #define SEQ_WAIT_TIME(ticks)		_TIMER_EVENT(TMR_WAIT_ABS, ticks)
1270 #define SEQ_DELTA_TIME(ticks)		_TIMER_EVENT(TMR_WAIT_REL, ticks)
1271 #define SEQ_ECHO_BACK(key)		_TIMER_EVENT(TMR_ECHO, key)
1272 #define SEQ_SET_TEMPO(value)		_TIMER_EVENT(TMR_TEMPO, value)
1273 #define SEQ_SONGPOS(pos)		_TIMER_EVENT(TMR_SPP, pos)
1274 #define SEQ_TIME_SIGNATURE(sig)		_TIMER_EVENT(TMR_TIMESIG, sig)
1275 
1276 /*
1277  * Local control events
1278  */
1279 
1280 #define _LOCAL_EVENT(ev, parm)		{_SEQ_NEEDBUF(8);\
1281 				 	_seqbuf[_seqbufptr+0] = EV_SEQ_LOCAL; \
1282 				 	_seqbuf[_seqbufptr+1] = (ev); \
1283 					_seqbuf[_seqbufptr+2] = 0;\
1284 					_seqbuf[_seqbufptr+3] = 0;\
1285 				 	*(unsigned int *)&_seqbuf[_seqbufptr+4] = (parm); \
1286 					_SEQ_ADVBUF(8);}
1287 
1288 #define SEQ_PLAYAUDIO(devmask)		_LOCAL_EVENT(LOCL_STARTAUDIO, devmask)
1289 /*
1290  * Events for the level 1 interface only
1291  */
1292 
1293 #define SEQ_MIDIOUT(device, byte)	{_SEQ_NEEDBUF(4);\
1294 					_seqbuf[_seqbufptr] = SEQ_MIDIPUTC;\
1295 					_seqbuf[_seqbufptr+1] = (byte);\
1296 					_seqbuf[_seqbufptr+2] = (device);\
1297 					_seqbuf[_seqbufptr+3] = 0;\
1298 					_SEQ_ADVBUF(4);}
1299 
1300 /*
1301  * Patch loading.
1302  */
1303 #ifdef OSSLIB
1304 #   define SEQ_WRPATCH(patchx, len) \
1305 		OSS_write_patch(seqfd, (char*)(patchx), len)
1306 #   define SEQ_WRPATCH2(patchx, len) \
1307 		OSS_write_patch2(seqfd, (char*)(patchx), len)
1308 #else
1309 #   define SEQ_WRPATCH(patchx, len) \
1310 		{if (_seqbufptr) SEQ_DUMPBUF();\
1311 		 if (write(seqfd, (char*)(patchx), len)==-1) \
1312 		    perror("Write patch: /dev/sequencer");}
1313 #   define SEQ_WRPATCH2(patchx, len) \
1314 		(SEQ_DUMPBUF(), write(seqfd, (char*)(patchx), len))
1315 #endif
1316 
1317 #endif
1318 #endif
1319