xref: /freebsd-10.0-release/sys/sys/soundcard.h

#ifndef SOUNDCARD_H
#define SOUNDCARD_H
/*
 * Copyright by Hannu Savolainen 1993
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *
 */

 /*
  * If you make modifications to this file, please contact me before
  * distributing the modified version. There is already enough
  * divercity in the world.
  *
  * Regards,
  * Hannu Savolainen
  * hannu@voxware.pp.fi
  */

#define SOUND_VERSION	301
#define VOXWARE

#include <sys/ioctl.h>

/*
 *	Supported card ID numbers (Should be somewhere else?)
 */

#define SNDCARD_ADLIB		1
#define SNDCARD_SB		2
#define SNDCARD_PAS		3
#define SNDCARD_GUS		4
#define SNDCARD_MPU401		5
#define SNDCARD_SB16		6
#define SNDCARD_SB16MIDI	7
#define SNDCARD_UART6850	8
#define SNDCARD_GUS16		9
#define SNDCARD_MSS		10
#define SNDCARD_PSS     	11
#define SNDCARD_SSCAPE		12
#define SNDCARD_PSS_MPU     	13
#define SNDCARD_PSS_MSS     	14
#define SNDCARD_SSCAPE_MSS	15
#define SNDCARD_TRXPRO		16
#define SNDCARD_TRXPRO_SB	17
#define SNDCARD_TRXPRO_MPU	18

/***********************************
 * IOCTL Commands for /dev/sequencer
 */

#ifndef _IOWR
/*	@(#)ioctlp.h */

/* Ioctl's have the command encoded in the lower word,
 * and the size of any in or out parameters in the upper
 * word.  The high 2 bits of the upper word are used
 * to encode the in/out status of the parameter; for now
 * we restrict parameters to at most 128 bytes.
 */
/* #define	IOCTYPE		(0xff<<8) */
#define	IOCPARM_MASK	0x7f		/* parameters must be < 128 bytes */
#define	IOC_VOID	0x00000000	/* no parameters */
#define	IOC_OUT		0x20000000	/* copy out parameters */
#define	IOC_IN		0x40000000	/* copy in parameters */
#define	IOC_INOUT	(IOC_IN|IOC_OUT)
/* the 0x20000000 is so we can distinguish new ioctl's from old */
#define	_IO(x,y)	((int)(IOC_VOID|(x<<8)|y))
#define	_IOR(x,y,t)	((int)(IOC_OUT|((sizeof(t)&IOCPARM_MASK)<<16)|(x<<8)|y))
#define	_IOW(x,y,t)	((int)(IOC_IN|((sizeof(t)&IOCPARM_MASK)<<16)|(x<<8)|y))
/* this should be _IORW, but stdio got there first */
#define	_IOWR(x,y,t)	((int)(IOC_INOUT|((sizeof(t)&IOCPARM_MASK)<<16)|(x<<8)|y))
#endif  /* !_IOWR */

#define SNDCTL_SEQ_RESET		_IO  ('Q', 0)
#define SNDCTL_SEQ_SYNC			_IO  ('Q', 1)
#define SNDCTL_SYNTH_INFO		_IOWR('Q', 2, struct synth_info)
#define SNDCTL_SEQ_CTRLRATE		_IOWR('Q', 3, int)	/* Set/get timer resolution (HZ) */
#define SNDCTL_SEQ_GETOUTCOUNT		_IOR ('Q', 4, int)
#define SNDCTL_SEQ_GETINCOUNT		_IOR ('Q', 5, int)
#define SNDCTL_SEQ_PERCMODE		_IOW ('Q', 6, int)
#define SNDCTL_FM_LOAD_INSTR		_IOW ('Q', 7, struct sbi_instrument)	/* Valid for FM only */
#define SNDCTL_SEQ_TESTMIDI		_IOW ('Q', 8, int)
#define SNDCTL_SEQ_RESETSAMPLES		_IOW ('Q', 9, int)
#define SNDCTL_SEQ_NRSYNTHS		_IOR ('Q',10, int)
#define SNDCTL_SEQ_NRMIDIS		_IOR ('Q',11, int)
#define SNDCTL_MIDI_INFO		_IOWR('Q',12, struct midi_info)
#define SNDCTL_SEQ_TRESHOLD		_IOW ('Q',13, int)
#define SNDCTL_SYNTH_MEMAVL		_IOWR('Q',14, int)	/* in=dev#, out=memsize */
#define SNDCTL_FM_4OP_ENABLE		_IOW ('Q',15, int)	/* in=dev# */
#define SNDCTL_PMGR_ACCESS		_IOWR('Q',16, struct patmgr_info)
#define SNDCTL_SEQ_PANIC		_IO  ('Q',17)
#define SNDCTL_SEQ_OUTOFBAND		_IOW ('Q',18, struct seq_event_rec)

	struct seq_event_rec {
			unsigned char arr[8];
		};

#define SNDCTL_TMR_TIMEBASE		_IOWR('T', 1, int)
#define SNDCTL_TMR_START		_IO  ('T', 2)
#define SNDCTL_TMR_STOP			_IO  ('T', 3)
#define SNDCTL_TMR_CONTINUE		_IO  ('T', 4)
#define SNDCTL_TMR_TEMPO		_IOWR('T', 5, int)
#define SNDCTL_TMR_SOURCE		_IOWR('T', 6, int)
#	define TMR_INTERNAL		0x00000001
#	define TMR_EXTERNAL		0x00000002
#		define TMR_MODE_MIDI	0x00000010
#		define TMR_MODE_FSK	0x00000020
#		define TMR_MODE_CLS	0x00000040
#		define TMR_MODE_SMPTE	0x00000080
#define SNDCTL_TMR_METRONOME		_IOW ('T', 7, int)
#define SNDCTL_TMR_SELECT		_IOW ('T', 8, int)

/*
 *	Sample loading mechanism for internal synthesizers (/dev/sequencer)
 *	The following patch_info structure has been designed to support
 *	Gravis UltraSound. It tries to be universal format for uploading
 *	sample based patches but is propably too limited.
 */

struct patch_info {
		short key;		/* Use GUS_PATCH here */
#define GUS_PATCH	0x04fd
#define OBSOLETE_GUS_PATCH	0x02fd
		short device_no;	/* Synthesizer number */
		short instr_no;		/* Midi pgm# */

		unsigned long mode;
/*
 * The least significant byte has the same format than the GUS .PAT
 * files
 */
#define WAVE_16_BITS	0x01	/* bit 0 = 8 or 16 bit wave data. */
#define WAVE_UNSIGNED	0x02	/* bit 1 = Signed - Unsigned data. */
#define WAVE_LOOPING	0x04	/* bit 2 = looping enabled-1. */
#define WAVE_BIDIR_LOOP	0x08	/* bit 3 = Set is bidirectional looping. */
#define WAVE_LOOP_BACK	0x10	/* bit 4 = Set is looping backward. */
#define WAVE_SUSTAIN_ON	0x20	/* bit 5 = Turn sustaining on. (Env. pts. 3)*/
#define WAVE_ENVELOPES	0x40	/* bit 6 = Enable envelopes - 1 */
				/* 	(use the env_rate/env_offs fields). */
/* Linux specific bits */
#define WAVE_VIBRATO	0x00010000	/* The vibrato info is valid */
#define WAVE_TREMOLO	0x00020000	/* The tremolo info is valid */
#define WAVE_SCALE	0x00040000	/* The scaling info is valid */
/* Other bits must be zeroed */

		long len;	/* Size of the wave data in bytes */
		long loop_start, loop_end; /* Byte offsets from the beginning */

/*
 * The base_freq and base_note fields are used when computing the
 * playback speed for a note. The base_note defines the tone frequency
 * which is heard if the sample is played using the base_freq as the
 * playback speed.
 *
 * The low_note and high_note fields define the minimum and maximum note
 * frequencies for which this sample is valid. It is possible to define
 * more than one samples for a instrument number at the same time. The
 * low_note and high_note fields are used to select the most suitable one.
 *
 * The fields base_note, high_note and low_note should contain
 * the note frequency multiplied by 1000. For example value for the
 * middle A is 440*1000.
 */

		unsigned int base_freq;
		unsigned long base_note;
		unsigned long high_note;
		unsigned long low_note;
		int panning;	/* -128=left, 127=right */
		int detuning;

/*	New fields introduced in version 1.99.5	*/

       /* Envelope. Enabled by mode bit WAVE_ENVELOPES	*/
		unsigned char	env_rate[ 6 ];	 /* GUS HW ramping rate */
		unsigned char	env_offset[ 6 ]; /* 255 == 100% */

	/*
	 * The tremolo, vibrato and scale info are not supported yet.
	 * Enable by setting the mode bits WAVE_TREMOLO, WAVE_VIBRATO or
	 * WAVE_SCALE
	 */

		unsigned char	tremolo_sweep;
		unsigned char	tremolo_rate;
		unsigned char	tremolo_depth;

		unsigned char	vibrato_sweep;
		unsigned char	vibrato_rate;
		unsigned char	vibrato_depth;

		int		scale_frequency;
		unsigned int	scale_factor;		/* from 0 to 2048 or 0 to 2 */

	        int		volume;
	        int		spare[4];
		char data[1];	/* The waveform data starts here */
	};


struct sysex_info {
		short key;		/* Use GUS_PATCH here */
#define SYSEX_PATCH	0x05fd
		short device_no;	/* Synthesizer number */
		long len;	/* Size of the sysex data in bytes */
		unsigned char data[1];	/* Sysex data starts here */
	};

/*
 * Patch management interface (/dev/sequencer, /dev/patmgr#)
 * Don't use these calls if you want to maintain compatibility with
 * the future versions of the driver.
 */

#define 	PS_NO_PATCHES		0	/* No patch support on device */
#define		PS_MGR_NOT_OK		1	/* Plain patch support (no mgr) */
#define		PS_MGR_OK		2	/* Patch manager supported */
#define		PS_MANAGED		3	/* Patch manager running */

#define SNDCTL_PMGR_IFACE		_IOWR('P', 1, struct patmgr_info)

/*
 * The patmgr_info is a fixed size structure which is used for two
 * different purposes. The intended use is for communication between
 * the application using /dev/sequencer and the patch manager daemon
 * associated with a synthesizer device (ioctl(SNDCTL_PMGR_ACCESS)).
 *
 * This structure is also used with ioctl(SNDCTL_PGMR_IFACE) which allows
 * a patch manager daemon to read and write device parameters. This
 * ioctl available through /dev/sequencer also. Avoid using it since it's
 * extremely hardware dependent. In addition access trough /dev/sequencer
 * may confuse the patch manager daemon.
 */

struct patmgr_info {	/* Note! size must be < 4k since kmalloc() is used */
	  unsigned long key;	/* Don't worry. Reserved for communication
	  			   between the patch manager and the driver. */
#define PM_K_EVENT		1 /* Event from the /dev/sequencer driver */
#define PM_K_COMMAND		2 /* Request from a application */
#define PM_K_RESPONSE		3 /* From patmgr to application */
#define PM_ERROR		4 /* Error returned by the patmgr */
	  int device;
	  int command;

/*
 * Commands 0x000 to 0xfff reserved for patch manager programs
 */
#define PM_GET_DEVTYPE	1	/* Returns type of the patch mgr interface of dev */
#define		PMTYPE_FM2	1	/* 2 OP fm */
#define		PMTYPE_FM4	2	/* Mixed 4 or 2 op FM (OPL-3) */
#define		PMTYPE_WAVE	3	/* Wave table synthesizer (GUS) */
#define PM_GET_NRPGM	2	/* Returns max # of midi programs in parm1 */
#define PM_GET_PGMMAP	3	/* Returns map of loaded midi programs in data8 */
#define PM_GET_PGM_PATCHES 4	/* Return list of patches of a program (parm1) */
#define PM_GET_PATCH	5	/* Return patch header of patch parm1 */
#define PM_SET_PATCH	6	/* Set patch header of patch parm1 */
#define PM_READ_PATCH	7	/* Read patch (wave) data */
#define PM_WRITE_PATCH	8	/* Write patch (wave) data */

/*
 * Commands 0x1000 to 0xffff are for communication between the patch manager
 * and the client
 */
#define _PM_LOAD_PATCH	0x100

/*
 * Commands above 0xffff reserved for device specific use
 */

	  long parm1;
	  long parm2;
	  long parm3;

	  union {
		unsigned char data8[4000];
		unsigned short data16[2000];
		unsigned long data32[1000];
		struct patch_info patch;
	  } data;
	};

/*
 * When a patch manager daemon is present, it will be informed by the
 * driver when something important happens. For example when the
 * /dev/sequencer is opened or closed. A record with key == PM_K_EVENT is
 * returned. The command field contains the event type:
 */
#define PM_E_OPENED		1	/* /dev/sequencer opened */
#define PM_E_CLOSED		2	/* /dev/sequencer closed */
#define PM_E_PATCH_RESET	3	/* SNDCTL_RESETSAMPLES called */
#define PM_E_PATCH_LOADED	4	/* A patch has been loaded by appl */

/*
 * /dev/sequencer input events.
 *
 * The data written to the /dev/sequencer is a stream of events. Events
 * are records of 4 or 8 bytes. The first byte defines the size.
 * Any number of events can be written with a write call. There
 * is a set of macros for sending these events. Use these macros if you
 * want to maximize portability of your program.
 *
 * Events SEQ_WAIT, SEQ_MIDIPUTC and SEQ_ECHO. Are also input events.
 * (All input events are currently 4 bytes long. Be prepared to support
 * 8 byte events also. If you receive any event having first byte >= 128,
 * it's a 8 byte event.
 *
 * The events are documented at the end of this file.
 *
 * Normal events (4 bytes)
 * There is also a 8 byte version of most of the 4 byte events. The
 * 8 byte one is recommended.
 */
#define SEQ_NOTEOFF		0
#define SEQ_FMNOTEOFF		SEQ_NOTEOFF	/* Just old name */
#define SEQ_NOTEON		1
#define	SEQ_FMNOTEON		SEQ_NOTEON
#define SEQ_WAIT		TMR_WAIT_ABS
#define SEQ_PGMCHANGE		3
#define SEQ_FMPGMCHANGE		SEQ_PGMCHANGE
#define SEQ_SYNCTIMER		TMR_START
#define SEQ_MIDIPUTC		5
#define SEQ_DRUMON		6	/*** OBSOLETE ***/
#define SEQ_DRUMOFF		7	/*** OBSOLETE ***/
#define SEQ_ECHO		TMR_ECHO	/* For synching programs with output */
#define SEQ_AFTERTOUCH		9
#define SEQ_CONTROLLER		10

/*******************************************
 *	Midi controller numbers
 *******************************************
 * Controllers 0 to 31 (0x00 to 0x1f) and
 * 32 to 63 (0x20 to 0x3f) are continuous
 * controllers.
 * In the MIDI 1.0 these controllers are sent using
 * two messages. Controller numbers 0 to 31 are used
 * to send the MSB and the controller numbers 32 to 63
 * are for the LSB. Note that just 7 bits are used in MIDI bytes.
 */

#define	   CTL_BANK_SELECT		0x00
#define	   CTL_MODWHEEL			0x01
#define    CTL_BREATH			0x02
/*		undefined		0x03 */
#define    CTL_FOOT			0x04
#define    CTL_PORTAMENTO_TIME		0x05
#define    CTL_DATA_ENTRY		0x06
#define    CTL_MAIN_VOLUME		0x07
#define    CTL_BALANCE			0x08
/*		undefined		0x09 */
#define    CTL_PAN			0x0a
#define    CTL_EXPRESSION		0x0b
/*		undefined		0x0c */
/*		undefined		0x0d */
/*		undefined		0x0e */
/*		undefined		0x0f */
#define    CTL_GENERAL_PURPOSE1	0x10
#define    CTL_GENERAL_PURPOSE2	0x11
#define    CTL_GENERAL_PURPOSE3	0x12
#define    CTL_GENERAL_PURPOSE4	0x13
/*		undefined		0x14 - 0x1f */

/*		undefined		0x20 */
/* The controller numbers 0x21 to 0x3f are reserved for the */
/* least significant bytes of the controllers 0x00 to 0x1f. */
/* These controllers are not recognised by the driver. */

/* Controllers 64 to 69 (0x40 to 0x45) are on/off switches. */
/* 0=OFF and 127=ON (intermediate values are possible) */
#define    CTL_DAMPER_PEDAL		0x40
#define    CTL_SUSTAIN			0x40	/* Alias */
#define    CTL_HOLD			0x40	/* Alias */
#define    CTL_PORTAMENTO		0x41
#define    CTL_SOSTENUTO		0x42
#define    CTL_SOFT_PEDAL		0x43
/*		undefined		0x44 */
#define    CTL_HOLD2			0x45
/*		undefined		0x46 - 0x4f */

#define    CTL_GENERAL_PURPOSE5	0x50
#define    CTL_GENERAL_PURPOSE6	0x51
#define    CTL_GENERAL_PURPOSE7	0x52
#define    CTL_GENERAL_PURPOSE8	0x53
/*		undefined		0x54 - 0x5a */
#define    CTL_EXT_EFF_DEPTH		0x5b
#define    CTL_TREMOLO_DEPTH		0x5c
#define    CTL_CHORUS_DEPTH		0x5d
#define    CTL_DETUNE_DEPTH		0x5e
#define    CTL_CELESTE_DEPTH		0x5e	/* Alias for the above one */
#define    CTL_PHASER_DEPTH		0x5f
#define    CTL_DATA_INCREMENT		0x60
#define    CTL_DATA_DECREMENT		0x61
#define    CTL_NONREG_PARM_NUM_LSB	0x62
#define    CTL_NONREG_PARM_NUM_MSB	0x63
#define    CTL_REGIST_PARM_NUM_LSB	0x64
#define    CTL_REGIST_PARM_NUM_MSB	0x65
/*		undefined		0x66 - 0x78 */
/*		reserved		0x79 - 0x7f */

/* Pseudo controllers (not midi compatible) */
#define    CTRL_PITCH_BENDER		255
#define    CTRL_PITCH_BENDER_RANGE	254
#define    CTRL_EXPRESSION		253	/* Obsolete */
#define    CTRL_MAIN_VOLUME		252	/* Obsolete */
#define SEQ_BALANCE		11
#define SEQ_VOLMODE             12

/*
 * Volume mode decides how volumes are used
 */

#define VOL_METHOD_ADAGIO	1
#define VOL_METHOD_LINEAR	2

/*
 * Note! SEQ_WAIT, SEQ_MIDIPUTC and SEQ_ECHO are used also as
 *	 input events.
 */

/*
 * Event codes 0xf0 to 0xfc are reserved for future extensions.
 */

#define SEQ_FULLSIZE		0xfd	/* Long events */
/*
 *	SEQ_FULLSIZE events are used for loading patches/samples to the
 *	synthesizer devices. These events are passed directly to the driver
 *	of the associated synthesizer device. There is no limit to the size
 *	of the extended events. These events are not queued but executed
 *	immediately when the write() is called (execution can take several
 *	seconds of time).
 *
 *	When a SEQ_FULLSIZE message is written to the device, it must
 *	be written using exactly one write() call. Other events cannot
 *	be mixed to the same write.
 *
 *	For FM synths (YM3812/OPL3) use struct sbi_instrument and write it to the
 *	/dev/sequencer. Don't write other data together with the instrument structure
 *	Set the key field of the structure to FM_PATCH. The device field is used to
 *	route the patch to the corresponding device.
 *
 *	For Gravis UltraSound use struct patch_info. Initialize the key field
 *      to GUS_PATCH.
 */
#define SEQ_PRIVATE		0xfe	/* Low level HW dependent events (8 bytes) */
#define SEQ_EXTENDED		0xff	/* Extended events (8 bytes) OBSOLETE */

/*
 * Record for FM patches
 */

typedef unsigned char sbi_instr_data[32];

struct sbi_instrument {
		unsigned short	key;		/* 	Initialize to FM_PATCH or OPL3_PATCH */
#define FM_PATCH	0x01fd
#define OPL3_PATCH	0x03fd
		short		device;		/*	Synth# (0-4)	*/
		int 		channel;	/*	Program# to be initialized 	*/
		sbi_instr_data	operators;	/*	Register settings for operator cells (.SBI format)	*/
	};

struct synth_info {	/* Read only */
		char	name[30];
		int	device;		/* 0-N. INITIALIZE BEFORE CALLING */
		int	synth_type;
#define SYNTH_TYPE_FM			0
#define SYNTH_TYPE_SAMPLE		1
#define SYNTH_TYPE_MIDI			2	/* Midi interface */

		int	synth_subtype;
#define FM_TYPE_ADLIB			0x00
#define FM_TYPE_OPL3			0x01

#define SAMPLE_TYPE_GUS			0x10

		int	perc_mode;	/* No longer supported */
		int	nr_voices;
		int	nr_drums;	/* Obsolete field */
		int	instr_bank_size;
		unsigned long	capabilities;
#define SYNTH_CAP_PERCMODE		0x00000001 /* No longer used */
#define SYNTH_CAP_OPL3			0x00000002 /* Set if OPL3 supported */
#define SYNTH_CAP_INPUT			0x00000004 /* Input (MIDI) device */
		int	dummies[19];	/* Reserve space */
	};

struct sound_timer_info {
		char name[30];
		int caps;
	};

#define MIDI_CAP_MPU401		1		/* MPU-401 intelligent mode */

struct midi_info {
		char		name[30];
		int		device;		/* 0-N. INITIALIZE BEFORE CALLING */
		unsigned long	capabilities;	/* To be defined later */
		int		dev_type;
		int		dummies[18];	/* Reserve space */
	};

/********************************************
 * ioctl commands for the /dev/midi##
 */
typedef struct {
		unsigned char cmd;
		char nr_args, nr_returns;
		unsigned char data[30];
	} mpu_command_rec;

#define SNDCTL_MIDI_PRETIME		_IOWR('m', 0, int)
#define SNDCTL_MIDI_MPUMODE		_IOWR('m', 1, int)
#define SNDCTL_MIDI_MPUCMD		_IOWR('m', 2, mpu_command_rec)

/********************************************
 * IOCTL commands for /dev/dsp and /dev/audio
 */

#define SNDCTL_DSP_RESET		_IO  ('P', 0)
#define SNDCTL_DSP_SYNC			_IO  ('P', 1)
#define SNDCTL_DSP_SPEED		_IOWR('P', 2, int)
#define SNDCTL_DSP_STEREO		_IOWR('P', 3, int)
#define SNDCTL_DSP_GETBLKSIZE		_IOR('P', 4, int)
#define SNDCTL_DSP_SETBLKSIZE		_IOW('P', 4, int)
#define SNDCTL_DSP_SAMPLESIZE		SNDCTL_DSP_SETFMT
#define SOUND_PCM_WRITE_CHANNELS	_IOWR('P', 6, int)
#define SOUND_PCM_WRITE_FILTER		_IOWR('P', 7, int)
#define SNDCTL_DSP_POST			_IO  ('P', 8)
#define SNDCTL_DSP_SUBDIVIDE		_IOWR('P', 9, int)
#define SNDCTL_DSP_SETFRAGMENT		_IOWR('P',10, int)

/*	Audio data formats (Note! U8=8 and S16_LE=16 for compatibility) */
#define SNDCTL_DSP_GETFMTS		_IOR ('P',11, int) /* Returns a mask */
#define SNDCTL_DSP_SETFMT		_IOWR('P',5, int) /* Selects ONE fmt*/
#	define AFMT_QUERY		0x00000000	/* Return current fmt */
#	define AFMT_MU_LAW		0x00000001
#	define AFMT_A_LAW		0x00000002
#	define AFMT_IMA_ADPCM		0x00000004
#	define AFMT_U8			0x00000008
#	define AFMT_S16_LE		0x00000010	/* Little endian signed 16*/
#	define AFMT_S16_BE		0x00000020	/* Big endian signed 16 */
#	define AFMT_S8			0x00000040
#	define AFMT_U16_LE		0x00000080	/* Little endian U16 */
#	define AFMT_U16_BE		0x00000100	/* Big endian U16 */
#	define AFMT_MPEG		0x00000200	/* MPEG (2) audio */

/*
 * Buffer status queries.
 */
typedef struct audio_buf_info {
			int fragments;	/* # of available fragments (partially usend ones not counted) */
			int fragsize;	/* Size of a fragment in bytes */

			int bytes;	/* Available space in bytes (includes partially used fragments) */
			/* Note! 'bytes' could be more than fragments*fragsize */
		} audio_buf_info;

#define SNDCTL_DSP_GETOSPACE		_IOR ('P',12, audio_buf_info)
#define SNDCTL_DSP_GETISPACE		_IOR ('P',13, audio_buf_info)
#define SNDCTL_DSP_NONBLOCK		_IO  ('P',14)

#define SOUND_PCM_READ_RATE		_IOR ('P', 2, int)
#define SOUND_PCM_READ_CHANNELS		_IOR ('P', 6, int)
#define SOUND_PCM_READ_BITS		_IOR ('P', 5, int)
#define SOUND_PCM_READ_FILTER		_IOR ('P', 7, int)

/* Some alias names */
#define SOUND_PCM_WRITE_BITS		SNDCTL_DSP_SETFMT
#define SOUND_PCM_WRITE_RATE		SNDCTL_DSP_SPEED
#define SOUND_PCM_POST			SNDCTL_DSP_POST
#define SOUND_PCM_RESET			SNDCTL_DSP_RESET
#define SOUND_PCM_SYNC			SNDCTL_DSP_SYNC
#define SOUND_PCM_SUBDIVIDE		SNDCTL_DSP_SUBDIVIDE
#define SOUND_PCM_SETFRAGMENT		SNDCTL_DSP_SETFRAGMENT
#define SOUND_PCM_GETFMTS		SNDCTL_DSP_GETFMTS
#define SOUND_PCM_SETFMT		SNDCTL_DSP_SETFMT
#define SOUND_PCM_GETOSPACE		SNDCTL_DSP_GETOSPACE
#define SOUND_PCM_GETISPACE		SNDCTL_DSP_GETISPACE
#define SOUND_PCM_NONBLOCK		SNDCTL_DSP_NONBLOCK

/*
 * ioctl calls to be used in communication with coprocessors and
 * DSP chips.
 */

typedef struct copr_buffer {
		int command;	/* Set to 0 if not used */
		int flags;
#define CPF_NONE		0x0000
#define CPF_FIRST		0x0001	/* First block */
#define CPF_LAST		0x0002	/* Last block */
		int len;
		int offs;	/* If required by the device (0 if not used) */

		unsigned char data[4000]; /* NOTE! 4000 is not 4k */
	} copr_buffer;

typedef struct copr_debug_buf {
		int command;	/* Used internally. Set to 0 */
		int parm1;
		int parm2;
		int flags;
		int len;	/* Length of data in bytes */
	} copr_debug_buf;

typedef struct copr_msg {
		int len;
		unsigned char data[4000];
	} copr_msg;

#define SNDCTL_COPR_RESET             _IO  ('C',  0)
#define SNDCTL_COPR_LOAD	      _IOWR('C',  1, copr_buffer)
#define SNDCTL_COPR_RDATA	      _IOWR('C',  2, copr_debug_buf)
#define SNDCTL_COPR_RCODE	      _IOWR('C',  3, copr_debug_buf)
#define SNDCTL_COPR_WDATA	      _IOW ('C',  4, copr_debug_buf)
#define SNDCTL_COPR_WCODE	      _IOW ('C',  5, copr_debug_buf)
#define SNDCTL_COPR_RUN		      _IOWR('C',  6, copr_debug_buf)
#define SNDCTL_COPR_HALT	      _IOWR('C',  7, copr_debug_buf)
#define SNDCTL_COPR_SENDMSG	      _IOW ('C',  8, copr_msg)
#define SNDCTL_COPR_RCVMSG	      _IOR ('C',  9, copr_msg)

/*********************************************
 * IOCTL commands for /dev/mixer
 */

/*
 * Mixer devices
 *
 * There can be up to 20 different analog mixer channels. The
 * SOUND_MIXER_NRDEVICES gives the currently supported maximum.
 * The SOUND_MIXER_READ_DEVMASK returns a bitmask which tells
 * the devices supported by the particular mixer.
 */

#define SOUND_MIXER_NRDEVICES	17
#define SOUND_MIXER_VOLUME	0
#define SOUND_MIXER_BASS	1
#define SOUND_MIXER_TREBLE	2
#define SOUND_MIXER_SYNTH	3
#define SOUND_MIXER_PCM		4
#define SOUND_MIXER_SPEAKER	5
#define SOUND_MIXER_LINE	6
#define SOUND_MIXER_MIC		7
#define SOUND_MIXER_CD		8
#define SOUND_MIXER_IMIX	9	/*  Recording monitor  */
#define SOUND_MIXER_ALTPCM	10
#define SOUND_MIXER_RECLEV	11	/* Recording level */
#define SOUND_MIXER_IGAIN	12	/* Input gain */
#define SOUND_MIXER_OGAIN	13	/* Output gain */
/*
 * The AD1848 codec and compatibles have three line level inputs
 * (line, aux1 and aux2). Since each card manufacturer have assigned
 * different meanings to these inputs, it's inpractical to assign
 * specific meanings (line, cd, synth etc.) to them.
 */
#define SOUND_MIXER_LINE1	14	/* Input source 1  (aux1) */
#define SOUND_MIXER_LINE2	15	/* Input source 2  (aux2) */
#define SOUND_MIXER_LINE3	16	/* Input source 3  (line) */

/* Some on/off settings (SOUND_SPECIAL_MIN - SOUND_SPECIAL_MAX) */
/* Not counted to SOUND_MIXER_NRDEVICES, but use the same number space */
#define SOUND_ONOFF_MIN		28
#define SOUND_ONOFF_MAX		30
#define SOUND_MIXER_MUTE	28	/* 0 or 1 */
#define SOUND_MIXER_ENHANCE	29	/* Enhanced stereo (0, 40, 60 or 80) */
#define SOUND_MIXER_LOUD	30	/* 0 or 1 */

/* Note!	Number 31 cannot be used since the sign bit is reserved */

#define SOUND_DEVICE_LABELS	{"Vol  ", "Bass ", "Trebl", "Synth", "Pcm  ", "Spkr ", "Line ", \
				 "Mic  ", "CD   ", "Mix  ", "Pcm2 ", "Rec  ", "IGain", "OGain", \
				 "Line1", "Line2", "Line3"}

#define SOUND_DEVICE_NAMES	{"vol", "bass", "treble", "synth", "pcm", "speaker", "line", \
				 "mic", "cd", "mix", "pcm2", "rec", "igain", "ogain", \
				 "line1", "line2", "line3"}

/*	Device bitmask identifiers	*/

#define SOUND_MIXER_RECSRC	0xff	/* Arg contains a bit for each recording source */
#define SOUND_MIXER_DEVMASK	0xfe	/* Arg contains a bit for each supported device */
#define SOUND_MIXER_RECMASK	0xfd	/* Arg contains a bit for each supported recording source */
#define SOUND_MIXER_CAPS	0xfc
	#define SOUND_CAP_EXCL_INPUT	0x00000001	/* Only one recording source at a time */
#define SOUND_MIXER_STEREODEVS	0xfb	/* Mixer channels supporting stereo */

/*	Device mask bits	*/

#define SOUND_MASK_VOLUME	(1 << SOUND_MIXER_VOLUME)
#define SOUND_MASK_BASS		(1 << SOUND_MIXER_BASS)
#define SOUND_MASK_TREBLE	(1 << SOUND_MIXER_TREBLE)
#define SOUND_MASK_SYNTH	(1 << SOUND_MIXER_SYNTH)
#define SOUND_MASK_PCM		(1 << SOUND_MIXER_PCM)
#define SOUND_MASK_SPEAKER	(1 << SOUND_MIXER_SPEAKER)
#define SOUND_MASK_LINE		(1 << SOUND_MIXER_LINE)
#define SOUND_MASK_MIC		(1 << SOUND_MIXER_MIC)
#define SOUND_MASK_CD		(1 << SOUND_MIXER_CD)
#define SOUND_MASK_IMIX		(1 << SOUND_MIXER_IMIX)
#define SOUND_MASK_ALTPCM	(1 << SOUND_MIXER_ALTPCM)
#define SOUND_MASK_RECLEV	(1 << SOUND_MIXER_RECLEV)
#define SOUND_MASK_IGAIN	(1 << SOUND_MIXER_IGAIN)
#define SOUND_MASK_OGAIN	(1 << SOUND_MIXER_OGAIN)
#define SOUND_MASK_LINE1	(1 << SOUND_MIXER_LINE1)
#define SOUND_MASK_LINE2	(1 << SOUND_MIXER_LINE2)
#define SOUND_MASK_LINE3	(1 << SOUND_MIXER_LINE3)

#define SOUND_MASK_MUTE		(1 << SOUND_MIXER_MUTE)
#define SOUND_MASK_ENHANCE	(1 << SOUND_MIXER_ENHANCE)
#define SOUND_MASK_LOUD		(1 << SOUND_MIXER_LOUD)

#define MIXER_READ(dev)		_IOR('M', dev, int)
#define SOUND_MIXER_READ_VOLUME		MIXER_READ(SOUND_MIXER_VOLUME)
#define SOUND_MIXER_READ_BASS		MIXER_READ(SOUND_MIXER_BASS)
#define SOUND_MIXER_READ_TREBLE		MIXER_READ(SOUND_MIXER_TREBLE)
#define SOUND_MIXER_READ_SYNTH		MIXER_READ(SOUND_MIXER_SYNTH)
#define SOUND_MIXER_READ_PCM		MIXER_READ(SOUND_MIXER_PCM)
#define SOUND_MIXER_READ_SPEAKER	MIXER_READ(SOUND_MIXER_SPEAKER)
#define SOUND_MIXER_READ_LINE		MIXER_READ(SOUND_MIXER_LINE)
#define SOUND_MIXER_READ_MIC		MIXER_READ(SOUND_MIXER_MIC)
#define SOUND_MIXER_READ_CD		MIXER_READ(SOUND_MIXER_CD)
#define SOUND_MIXER_READ_IMIX		MIXER_READ(SOUND_MIXER_IMIX)
#define SOUND_MIXER_READ_ALTPCM		MIXER_READ(SOUND_MIXER_ALTPCM)
#define SOUND_MIXER_READ_RECLEV		MIXER_READ(SOUND_MIXER_RECLEV)
#define SOUND_MIXER_READ_IGAIN		MIXER_READ(SOUND_MIXER_IGAIN)
#define SOUND_MIXER_READ_OGAIN		MIXER_READ(SOUND_MIXER_OGAIN)
#define SOUND_MIXER_READ_LINE1		MIXER_READ(SOUND_MIXER_LINE1)
#define SOUND_MIXER_READ_LINE2		MIXER_READ(SOUND_MIXER_LINE2)
#define SOUND_MIXER_READ_LINE3		MIXER_READ(SOUND_MIXER_LINE3)
#define SOUND_MIXER_READ_MUTE		MIXER_READ(SOUND_MIXER_MUTE)
#define SOUND_MIXER_READ_ENHANCE	MIXER_READ(SOUND_MIXER_ENHANCE)
#define SOUND_MIXER_READ_LOUD		MIXER_READ(SOUND_MIXER_LOUD)

#define SOUND_MIXER_READ_RECSRC		MIXER_READ(SOUND_MIXER_RECSRC)
#define SOUND_MIXER_READ_DEVMASK	MIXER_READ(SOUND_MIXER_DEVMASK)
#define SOUND_MIXER_READ_RECMASK	MIXER_READ(SOUND_MIXER_RECMASK)
#define SOUND_MIXER_READ_STEREODEVS	MIXER_READ(SOUND_MIXER_STEREODEVS)
#define SOUND_MIXER_READ_CAPS		MIXER_READ(SOUND_MIXER_CAPS)

#define MIXER_WRITE(dev)		_IOWR('M', dev, int)
#define SOUND_MIXER_WRITE_VOLUME	MIXER_WRITE(SOUND_MIXER_VOLUME)
#define SOUND_MIXER_WRITE_BASS		MIXER_WRITE(SOUND_MIXER_BASS)
#define SOUND_MIXER_WRITE_TREBLE	MIXER_WRITE(SOUND_MIXER_TREBLE)
#define SOUND_MIXER_WRITE_SYNTH		MIXER_WRITE(SOUND_MIXER_SYNTH)
#define SOUND_MIXER_WRITE_PCM		MIXER_WRITE(SOUND_MIXER_PCM)
#define SOUND_MIXER_WRITE_SPEAKER	MIXER_WRITE(SOUND_MIXER_SPEAKER)
#define SOUND_MIXER_WRITE_LINE		MIXER_WRITE(SOUND_MIXER_LINE)
#define SOUND_MIXER_WRITE_MIC		MIXER_WRITE(SOUND_MIXER_MIC)
#define SOUND_MIXER_WRITE_CD		MIXER_WRITE(SOUND_MIXER_CD)
#define SOUND_MIXER_WRITE_IMIX		MIXER_WRITE(SOUND_MIXER_IMIX)
#define SOUND_MIXER_WRITE_ALTPCM	MIXER_WRITE(SOUND_MIXER_ALTPCM)
#define SOUND_MIXER_WRITE_RECLEV	MIXER_WRITE(SOUND_MIXER_RECLEV)
#define SOUND_MIXER_WRITE_IGAIN		MIXER_WRITE(SOUND_MIXER_IGAIN)
#define SOUND_MIXER_WRITE_OGAIN		MIXER_WRITE(SOUND_MIXER_OGAIN)
#define SOUND_MIXER_WRITE_LINE1		MIXER_WRITE(SOUND_MIXER_LINE1)
#define SOUND_MIXER_WRITE_LINE2		MIXER_WRITE(SOUND_MIXER_LINE2)
#define SOUND_MIXER_WRITE_LINE3		MIXER_WRITE(SOUND_MIXER_LINE3)
#define SOUND_MIXER_WRITE_MUTE		MIXER_WRITE(SOUND_MIXER_MUTE)
#define SOUND_MIXER_WRITE_ENHANCE	MIXER_WRITE(SOUND_MIXER_ENHANCE)
#define SOUND_MIXER_WRITE_LOUD		MIXER_WRITE(SOUND_MIXER_LOUD)

#define SOUND_MIXER_WRITE_RECSRC	MIXER_WRITE(SOUND_MIXER_RECSRC)

/*
 * Level 2 event types for /dev/sequencer
 */

/*
 * The 4 most significant bits of byte 0 specify the class of
 * the event:
 *
 *	0x8X = system level events,
 *	0x9X = device/port specific events, event[1] = device/port,
 *		The last 4 bits give the subtype:
 *			0x02	= Channel event (event[3] = chn).
 *			0x01	= note event (event[4] = note).
 *			(0x01 is not used alone but always with bit 0x02).
 *	       event[2] = MIDI message code (0x80=note off etc.)
 *
 */

#define EV_SEQ_LOCAL		0x80
#define EV_TIMING		0x81
#define EV_CHN_COMMON		0x92
#define EV_CHN_VOICE		0x93
/*
 * Event types 200 to 220 are reserved for application use.
 * These numbers will not be used by the driver.
 */

/*
 * Events for event type EV_CHN_VOICE
 */

#define MIDI_NOTEOFF		0x80
#define MIDI_NOTEON		0x90
#define MIDI_KEY_PRESSURE	0xA0

/*
 * Events for event type EV_CHN_COMMON
 */

#define MIDI_CTL_CHANGE		0xB0
#define MIDI_PGM_CHANGE		0xC0
#define MIDI_CHN_PRESSURE	0xD0
#define MIDI_PITCH_BEND		0xE0

#define MIDI_SYSTEM_PREFIX	0xF0

/*
 * Timer event types
 */
#define TMR_WAIT_REL		1	/* Time relative to the prev time */
#define TMR_WAIT_ABS		2	/* Absolute time since TMR_START */
#define TMR_STOP		3
#define TMR_START		4
#define TMR_CONTINUE		5
#define TMR_TEMPO		6
#define TMR_ECHO		8
#define TMR_CLOCK		9	/* MIDI clock */
#define TMR_SPP			10	/* Song position pointer */
#define TMR_TIMESIG		11	/* Time signature */

#if (!defined(__KERNEL__) && !defined(KERNEL) && !defined(INKERNEL) && !defined(_KERNEL)) || defined(USE_SEQ_MACROS)
/*
 *	Some convenience macros to simplify programming of the
 *	/dev/sequencer interface
 *
 *	These macros define the API which should be used when possible.
 */

#ifndef USE_SIMPLE_MACROS
void seqbuf_dump(void);	/* This function must be provided by programs */

/* Sample seqbuf_dump() implementation:
 *
 *	SEQ_DEFINEBUF (2048);	-- Defines a buffer for 2048 bytes
 *
 *	int seqfd;		-- The file descriptor for /dev/sequencer.
 *
 *	void
 *	seqbuf_dump ()
 *	{
 *	  if (_seqbufptr)
 *	    if (write (seqfd, _seqbuf, _seqbufptr) == -1)
 *	      {
 *		perror ("write /dev/sequencer");
 *		exit (-1);
 *	      }
 *	  _seqbufptr = 0;
 *	}
 */

#define SEQ_DEFINEBUF(len)		unsigned char _seqbuf[len]; int _seqbuflen = len;int _seqbufptr = 0
#define SEQ_USE_EXTBUF()		extern unsigned char _seqbuf[]; extern int _seqbuflen;extern int _seqbufptr
#define SEQ_DECLAREBUF()		SEQ_USE_EXTBUF()
#define SEQ_PM_DEFINES			struct patmgr_info _pm_info
#define _SEQ_NEEDBUF(len)		if ((_seqbufptr+(len)) > _seqbuflen) seqbuf_dump()
#define _SEQ_ADVBUF(len)		_seqbufptr += len
#define SEQ_DUMPBUF			seqbuf_dump
#else
/*
 * This variation of the sequencer macros is used just to format one event
 * using fixed buffer.
 *
 * The program using the macro library must define the following macros before
 * using this library.
 *
 * #define _seqbuf 		 name of the buffer (unsigned char[])
 * #define _SEQ_ADVBUF(len)	 If the applic needs to know the exact
 *				 size of the event, this macro can be used.
 *				 Otherwise this must be defined as empty.
 * #define _seqbufptr		 Define the name of index variable or 0 if
 *				 not required.
 */
#define _SEQ_NEEDBUF(len)	/* empty */
#endif

#define PM_LOAD_PATCH(dev, bank, pgm)	(SEQ_DUMPBUF(), _pm_info.command = _PM_LOAD_PATCH, \
					_pm_info.device=dev, _pm_info.data.data8[0]=pgm, \
					_pm_info.parm1 = bank, _pm_info.parm2 = 1, \
					ioctl(seqfd, SNDCTL_PMGR_ACCESS, &_pm_info))
#define PM_LOAD_PATCHES(dev, bank, pgm) (SEQ_DUMPBUF(), _pm_info.command = _PM_LOAD_PATCH, \
					_pm_info.device=dev, memcpy(_pm_info.data.data8, pgm, 128), \
					_pm_info.parm1 = bank, _pm_info.parm2 = 128, \
					ioctl(seqfd, SNDCTL_PMGR_ACCESS, &_pm_info))

#define SEQ_VOLUME_MODE(dev, mode)	{_SEQ_NEEDBUF(8);\
					_seqbuf[_seqbufptr] = SEQ_EXTENDED;\
					_seqbuf[_seqbufptr+1] = SEQ_VOLMODE;\
					_seqbuf[_seqbufptr+2] = (dev);\
					_seqbuf[_seqbufptr+3] = (mode);\
					_seqbuf[_seqbufptr+4] = 0;\
					_seqbuf[_seqbufptr+5] = 0;\
					_seqbuf[_seqbufptr+6] = 0;\
					_seqbuf[_seqbufptr+7] = 0;\
					_SEQ_ADVBUF(8);}

/*
 * Midi voice messages
 */

#define _CHN_VOICE(dev, event, chn, note, parm) \
					{_SEQ_NEEDBUF(8);\
					_seqbuf[_seqbufptr] = EV_CHN_VOICE;\
					_seqbuf[_seqbufptr+1] = (dev);\
					_seqbuf[_seqbufptr+2] = (event);\
					_seqbuf[_seqbufptr+3] = (chn);\
					_seqbuf[_seqbufptr+4] = (note);\
					_seqbuf[_seqbufptr+5] = (parm);\
					_seqbuf[_seqbufptr+6] = (0);\
					_seqbuf[_seqbufptr+7] = 0;\
					_SEQ_ADVBUF(8);}

#define SEQ_START_NOTE(dev, chn, note, vol) \
		_CHN_VOICE(dev, MIDI_NOTEON, chn, note, vol)

#define SEQ_STOP_NOTE(dev, chn, note, vol) \
		_CHN_VOICE(dev, MIDI_NOTEOFF, chn, note, vol)

#define SEQ_KEY_PRESSURE(dev, chn, note, pressure) \
		_CHN_VOICE(dev, MIDI_KEY_PRESSURE, chn, note, pressure)

/*
 * Midi channel messages
 */

#define _CHN_COMMON(dev, event, chn, p1, p2, w14) \
					{_SEQ_NEEDBUF(8);\
					_seqbuf[_seqbufptr] = EV_CHN_COMMON;\
					_seqbuf[_seqbufptr+1] = (dev);\
					_seqbuf[_seqbufptr+2] = (event);\
					_seqbuf[_seqbufptr+3] = (chn);\
					_seqbuf[_seqbufptr+4] = (p1);\
					_seqbuf[_seqbufptr+5] = (p2);\
					*(short *)&_seqbuf[_seqbufptr+6] = (w14);\
					_SEQ_ADVBUF(8);}

#define SEQ_CHN_PRESSURE(dev, chn, pressure) \
		_CHN_COMMON(dev, MIDI_CHN_PRESSURE, chn, pressure, 0, 0)

#define SEQ_SET_PATCH(dev, chn, patch) \
		_CHN_COMMON(dev, MIDI_PGM_CHANGE, chn, patch, 0, 0)

#define SEQ_CONTROL(dev, chn, controller, value) \
		_CHN_COMMON(dev, MIDI_CTL_CHANGE, chn, controller, 0, value)

#define SEQ_BENDER(dev, chn, value) \
		_CHN_COMMON(dev, MIDI_PITCH_BEND, chn, 0, 0, value)


#define SEQ_V2_X_CONTROL(dev, voice, controller, value)	{_SEQ_NEEDBUF(8);\
					_seqbuf[_seqbufptr] = SEQ_EXTENDED;\
					_seqbuf[_seqbufptr+1] = SEQ_CONTROLLER;\
					_seqbuf[_seqbufptr+2] = (dev);\
					_seqbuf[_seqbufptr+3] = (voice);\
					_seqbuf[_seqbufptr+4] = (controller);\
					*(short *)&_seqbuf[_seqbufptr+5] = (value);\
					_seqbuf[_seqbufptr+7] = 0;\
					_SEQ_ADVBUF(8);}
/*
 * The following 5 macros are incorrectly implemented and obsolete.
 * Use SEQ_BENDER and SEQ_CONTROL (with proper controller) instead.
 */
#define SEQ_PITCHBEND(dev, voice, value) SEQ_V2_X_CONTROL(dev, voice, CTRL_PITCH_BENDER, value)
#define SEQ_BENDER_RANGE(dev, voice, value) SEQ_V2_X_CONTROL(dev, voice, CTRL_PITCH_BENDER_RANGE, value)
#define SEQ_EXPRESSION(dev, voice, value) SEQ_CONTROL(dev, voice, CTL_EXPRESSION, value*128)
#define SEQ_MAIN_VOLUME(dev, voice, value) SEQ_CONTROL(dev, voice, CTL_MAIN_VOLUME, (value*16383)/100)
#define SEQ_PANNING(dev, voice, pos) SEQ_CONTROL(dev, voice, CTL_PAN, (pos+128) / 2)
#if 0
#define SEQ_PANNING(dev, voice, pos)	{_SEQ_NEEDBUF(8);\
					_seqbuf[_seqbufptr] = SEQ_EXTENDED;\
					_seqbuf[_seqbufptr+1] = SEQ_BALANCE;\
					_seqbuf[_seqbufptr+2] = (dev);\
					_seqbuf[_seqbufptr+3] = (voice);\
					(char)_seqbuf[_seqbufptr+4] = (pos);\
					_seqbuf[_seqbufptr+5] = 0;\
					_seqbuf[_seqbufptr+6] = 0;\
					_seqbuf[_seqbufptr+7] = 1;\
					_SEQ_ADVBUF(8);}
#endif

/*
 * Timing and syncronization macros
 */

#define _TIMER_EVENT(ev, parm)		{_SEQ_NEEDBUF(8);\
				 	_seqbuf[_seqbufptr+0] = EV_TIMING; \
				 	_seqbuf[_seqbufptr+1] = (ev); \
					_seqbuf[_seqbufptr+2] = 0;\
					_seqbuf[_seqbufptr+3] = 0;\
				 	*(unsigned int *)&_seqbuf[_seqbufptr+4] = (parm); \
					_SEQ_ADVBUF(8);}

#define SEQ_START_TIMER()		_TIMER_EVENT(TMR_START, 0)
#define SEQ_STOP_TIMER()		_TIMER_EVENT(TMR_STOP, 0)
#define SEQ_CONTINUE_TIMER()		_TIMER_EVENT(TMR_CONTINUE, 0)
#define SEQ_WAIT_TIME(ticks)		_TIMER_EVENT(TMR_WAIT_ABS, ticks)
#define SEQ_DELTA_TIME(ticks)		_TIMER_EVENT(TMR_WAIT_REL, ticks)
#define SEQ_ECHO_BACK(key)		_TIMER_EVENT(TMR_ECHO, key)
#define SEQ_SET_TEMPO(value)		_TIMER_EVENT(TMR_TEMPO, value)
#define SEQ_SONGPOS(pos)		_TIMER_EVENT(TMR_SPP, pos)
#define SEQ_TIME_SIGNATURE(sig)		_TIMER_EVENT(TMR_TIMESIG, sig)

/*
 * Events for the level 1 interface only
 */

#define SEQ_MIDIOUT(device, byte)	{_SEQ_NEEDBUF(4);\
					_seqbuf[_seqbufptr] = SEQ_MIDIPUTC;\
					_seqbuf[_seqbufptr+1] = (byte);\
					_seqbuf[_seqbufptr+2] = (device);\
					_seqbuf[_seqbufptr+3] = 0;\
					_SEQ_ADVBUF(4);}

/*
 * Patch loading.
 */
#define SEQ_WRPATCH(patchx, len)		{if (_seqbufptr) seqbuf_dump();\
					if (write(seqfd, (char*)(patchx), len)==-1) \
					   perror("Write patch: /dev/sequencer");}
#define SEQ_WRPATCH2(patchx, len)	(seqbuf_dump(), write(seqfd, (char*)(patchx), len))

#endif
#endif