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tones.c
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C/C++ Source or Header
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1990-01-10
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/* tones.c - play sine-wave tones on the speaker
**
** Copyright (C) 1989 by Jef Poskanzer.
**
** Permission to use, copy, modify, and distribute this software and its
** documentation for any purpose and without fee is hereby granted, provided
** that the above copyright notice appear in all copies and that both that
** copyright notice and this permission notice appear in supporting
** documentation. This software is provided "as is" without express or
** implied warranty.
*/
#include <stdio.h>
#include <fcntl.h>
#include "libsst.h"
main( argc, argv )
int argc;
char *argv[];
{
int sst_fd, dhz1, dhz2, thz, rhz;
if ( argc < 2 || argc > 5 )
{
fprintf( stderr, "usage: %s <dhz1> [<dhz2> [<thz> [<rhz>]]]\n", argv[0] );
exit( 1 );
}
dhz1 = atoi( argv[1] );
dhz2 = thz = rhz = 0;
if ( argc > 2 )
{
dhz2 = atoi( argv[2] );
if ( argc > 3 )
{
thz = atoi( argv[3] );
if ( argc > 4 )
{
rhz = atoi( argv[4] );
}
}
}
sst_fd = sst_open( );
sst_tones( sst_fd, dhz1, dhz2, thz, rhz, 1000000 );
sst_close( sst_fd );
exit( 0 );
}