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/*
* From: jmorriso@bogomips.ee.ubc.ca (John Paul Morrison)
* Subject: beepLinux.c
* To: joe@montebello.soest.hawaii.edu
* Date: Fri, 18 Nov 1994 15:32:33 -0800 (PST)
* X-Linux: watch for it: Linux 94 aka "Helsinki"
*
* beepLinux.c for morse (lightly tested, seems to work fine)
*/
/*
* beep for the Linux console (PC Speaker)
*
* (beepSun.c might work if you have a sound card installed and /dev/audio)
*
* by John Paul Morrison <jmorriso@ve7jpm.ampr.org>
*
*/
/* beepLinux.c -- 11/94 */
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/kd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include "alarm.h"
#include "beep.h"
static int fd;
int BeepInit()
{
if ((fd = open("/dev/console",O_WRONLY)) == -1)
{
fprintf(stderr,"You have no permissions to use /dev/console (chmod a+w).\n");
return 1;
}
return 0;
}
int Beep(time, volume, pitch)
int time, volume, pitch;
{
int count;
AlarmWait();
if (volume == 0)
count = 0;
else
count = (1193180 / pitch) & 0xffff;
ioctl(fd, KDMKTONE, (time << 16) | count);
AlarmSet(time);
return 0;
}
int BeepWait()
{
AlarmWait();
return 0;
}
int BeepCleanup()
{
close(fd);
return 0;
}
int BeepResume()
{
return 0;
}
/*
* ---------------------------------------------------------------------------
* BogoMIPS Research Labs -- bogosity research & simulation -- VE7JPM --
* jmorriso@bogomips.ee.ubc.ca ve7jpm@ve7jpm.ampr.org jmorriso@ve7ubc.ampr.org
* ---------------------------------------------------------------------------
*/
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