/*********************************************************************
 *  file:	h/sys/beep.h
 *  part #:
 *  internal sequence #:
 *
 *	************************************************************
 *	*     "(c) Copyright Hewlett-Packard Company, 1984.   All  *
 *	*     rights are reserved.  Copying or other reproduction  *
 *	*     of this program except for archival purposes is      *
 *	*     prohibited without the prior written consent of      *
 *	*     Hewlett-Packard Company."				   *
 *	************************************************************
 *
 *
 *	This file contains definitions for the cops 452 
 *      beeper driver.
 *
 *		Pisces Q-DOS project
 *		Jon Brewster PCD
 *		----------------------------------------------------
 *		initial				1/3/84  jb
 *
 ********************************************************************/

#define SPEAKER		0x0670001	/* address of 452 */
#define RESET		0x03F		/* reset */
#define LOADA		0x021		/* load register A */
#define LOADB		0x020		/* load register B */
#define TRANA		0x025		/* transfer reg A to counter A */
#define TRANB		0x024		/* transfer reg B to counter B */
#define FMODE		0x030		/* frequency mode */
#define PMODE		0x032		/* pulse mode */
#define NMODE		0x038		/* white noise mode */
#define GNMODE		0x039		/* gated white noise mode */

#define BEEP 		(('B'<<8)|0)	/* ioctl commands for beeper */
#define BEEP_NOW    	(('B'<<8)|1)
#define BEEP_READ	(('B'<<8)|2)
#define BEEP_ON		(('B'<<8)|3)
#define BEEP_OFF	(('B'<<8)|4)

#define BEEPMAJOR	5		/* beeper major dev num */

struct freqdur
	{
	unsigned short frequency;	/* in hertz */
	unsigned short duration;	/* 1/100 seconds */
	};