/* *	$Header: bsd_audioirig.h,v 1.0 93/08/02 12:42:00 */#ifndef _BSD_AUDIOIRIG_H_#define _BSD_AUDIOIRIG_H_#include <sys/time.h>/********************************************************************//* user interface *//* * irig ioctls */#if defined(__STDC__) || (!defined(sun) && !defined(ibm032) && !defined(__GNUC))#define AUDIO_IRIG_OPEN         _IO('A', 50)#define AUDIO_IRIG_CLOSE        _IO('A', 51)#define AUDIO_IRIG_SETFORMAT    _IOWR('A', 52, int)#else#define AUDIO_IRIG_OPEN         _IO(A, 50)#define AUDIO_IRIG_CLOSE        _IO(A, 51)#define AUDIO_IRIG_SETFORMAT    _IOWR(A, 52, int)#endif/* * irig error codes */#define AUDIO_IRIG_BADSIGNAL	0x01#define AUDIO_IRIG_BADDATA	0x02#define AUDIO_IRIG_BADSYNC	0x04#define AUDIO_IRIG_BADCLOCK	0x08#define AUDIO_IRIG_OLDDATA	0x10/********************************************************************//* * auib definitions */#define AUIB_SIZE	(0x0040)#define AUIB_INC	(0x0008)#define AUIB_MOD(k)	((k) & 0x0038)#define AUIB_INIT(ib)	((ib)->ib_head = (ib)->ib_tail = (ib)->ib_lock = \			 (ib)->phase = (ib)->shi = (ib)->slo = (ib)->high = \			 (ib)->level0 = (ib)->level1 = \			 (ib)->shift[0] = (ib)->shift[1] = (ib)->shift[2] = \			 (ib)->shift[3] = (ib)->sdata[0] = (ib)->sdata[1] = \			 (ib)->sdata[2] = (ib)->sdata[3] = (ib)->err = 0)#define AUIB_EMPTY(ib)	((ib)->ib_head == (ib)->ib_tail)#define AUIB_LEN(ib)	(AUIB_MOD((ib)->ib_tail - (ib)->ib_head))#define AUIB_LEFT(ib)	(AUIB_MOD((ib)->ib_head - (ib)->ib_tail - 1))#define IRIGDELAY 3#define IRIGLEVEL 1355#ifndef LOCORE/* * irig_time holds IRIG data for one second */struct irig_time {        struct timeval  stamp;          /* timestamp */        u_char  bits[13];               /* 100 irig data bits */	u_char	status;			/* status byte */        char    time[14];               /* time string */};/* * auib's are used for IRIG data communication between the trap * handler and the software interrupt. */struct auib {	/* driver variables */	u_short	active;			/* 0=inactive, else=active */	u_short	format;			/* time output format */	struct	irig_time timestr;	/* time structure */	char	buffer[14];		/* output formation buffer */	/* hardware interrupt variables */	struct	timeval tv1,tv2,tv3;	/* time stamps (median filter) */	int	level0,level1;		/* lo/hi input levels */	int	level;			/* decision level */	int	high;			/* recent largest sample */	int	sl0,sl1;		/* recent sample levels */	int	lasts;			/* last sample value */	u_short	scount;			/* sample count */	u_long	eacc;			/* 10-bit element accumulator */	u_long	ebit;			/* current bit in element */	u_char	r_level,mmr1;		/* recording level 0-255 */	int	shi,slo,phase;		/* AGC variables */	u_long	err;			/* error status bits */	int	ecount;			/* count of elements this second */	long	shift[4];		/* shift register of pos ident */	long	sdata[4];		/* shift register of symbols */	int	ib_head;		/* queue head */	int	ib_tail;		/* queue tail */	u_short	ib_lock;		/* queue head lock */	u_long	ib_data[AUIB_SIZE];	/* data buffer */};#endif#endif /* _BSD_AUDIOIRIG_H_ */