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/* libsst.c - SPARC sound tools library
**
** 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.
** Hacked on by jwz for emacs.
*/
/* Synched up with: Not in FSF. */
#ifdef emacs
#include <config.h>
#include "lisp.h"
#else
#if __STDC__ || defined(STDC_HEADERS)
#include <stdlib.h>
#include <unistd.h>
#endif
#include <stdio.h>
#endif
#include <fcntl.h>
#include "libsst.h"
#define AUDBUF 1024
extern void usleep();
int
sst_open(play_level, record_level)
int play_level, record_level;
{
int fd, i, gr, ger, gx;
struct audio_ioctl ai;
char *getenv(), *ep;
fd = open( "/dev/audio", O_RDWR );
if ( fd < 0 )
{
perror( "sst_open: open /dev/audio" );
return( fd );
}
#ifdef AUDIOSETQSIZE /* This no longer exists as of 4.1.2. */
/* Shrink audio device's queue size, to cut down time delay. */
i = AUDBUF;
if ( ioctl( fd, AUDIOSETQSIZE, &i ) < 0 )
{
perror( "sst_open: SETQSIZE" );
return( fd );
}
#endif /* AUDIOSETQSIZE */
/* Set gains. -10 <= ger <= 18, -18 <= gr <= 12, -18 <= gx <= 12. */
if (!play_level)
{
play_level = 75;
if ( (ep = getenv( "SST_PLAY" )) != NULL )
{
play_level = atoi( ep );
if ( play_level < 0 || play_level > 99 )
{
warn( "sst_open: SST_PLAY must be between 0 and 99" );
return( -1 );
}
}
}
if (!record_level)
{
record_level = 75;
if ( (ep = getenv( "SST_RECORD" )) != NULL )
{
record_level = atoi( ep );
if ( record_level < 0 || record_level > 99 )
{
warn( "sst_open: SST_RECORD must be between 0 and 99" );
return( -1 );
}
}
}
play_level = play_level * 59 / 100 - 28;
ger = play_level / 2;
gr = play_level - ger;
if ( ger < -10 )
{
ger = -10;
gr = play_level - ger;
}
if ( gr > 12 )
{
gr = 12;
ger = play_level - gr;
}
gx = record_level * 31 / 100 - 18;
sst_set_gr( fd, gr );
sst_set_ger( fd, ger );
sst_set_gx( fd, gx );
/* Initialize the MMR2 register to send the output to either
** the speaker or the earphone jack, depending on SST_EARPHONES.
*/
ai.control = AUDIO_MAP_MMR2;
if ( ioctl( fd, AUDIOGETREG, &ai ) < 0 )
{
perror( "sst_open: GETREG MMR2" );
return( -1 );
}
if ( (ep = getenv( "SST_EARPHONES" )) != NULL )
ai.data[0] &= ~AUDIO_MMR2_BITS_LS;
else
ai.data[0] |= AUDIO_MMR2_BITS_LS;
if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
{
perror( "sst_open: SETREG MMR2" );
return( fd );
}
return fd;
}
void
sst_close( fd )
int fd;
{
struct audio_ioctl ai;
ai.control = AUDIO_MAP_MMR1;
ai.data[0] = 0;
if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
{
perror( "sst_close: SETREG MMR1" );
}
ai.control = AUDIO_MAP_MMR2;
ai.data[0] = 0;
if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
{
perror( "sst_close: SETREG MMR2" );
}
close( fd );
}
/* These are tables of values to be loaded into various gain registers.
*/
static unsigned char ger_table[][2] = {
0xaa, 0xaa, /* -10db */
0x79, 0xac,
0x41, 0x99,
0x9c, 0xde,
0x74, 0x9c, /* -6db */
0x6a, 0xae,
0xab, 0xdf,
0x64, 0xab,
0x2a, 0xbd,
0x5c, 0xce,
0x00, 0x99, /* 0db */
0x43, 0xdd,
0x52, 0xef,
0x55, 0x42,
0x31, 0xdd,
0x43, 0x1f,
0x40, 0xdd, /* 6db */
0x44, 0x0f,
0x31, 0x1f,
0x10, 0xdd,
0x41, 0x0f,
0x60, 0x0b,
0x42, 0x10, /* 12db */
0x11, 0x0f,
0x72, 0x00,
0x21, 0x10,
0x22, 0x00,
0x00, 0x0b,
0x00, 0x0f, /* 18db */
};
static unsigned char gr_gx_table[][2] = {
0x8b, 0x7c, /* -18db */
0x8b, 0x35,
0x8b, 0x24,
0x91, 0x23,
0x91, 0x2a,
0x91, 0x3b,
0x91, 0xf9, /* -12db */
0x91, 0xb6,
0x91, 0xa4,
0x92, 0x32,
0x92, 0xaa,
0x93, 0xb3,
0x9f, 0x91, /* -6db */
0x9b, 0xf9,
0x9a, 0x4a,
0xa2, 0xa2,
0xaa, 0xa3,
0xbb, 0x52,
0x08, 0x08, /* 0db */
0x3d, 0xac,
0x25, 0x33,
0x21, 0x22,
0x12, 0xa2,
0x11, 0x3b,
0x10, 0xf2, /* 6db */
0x02, 0xca,
0x01, 0x5a,
0x01, 0x12,
0x00, 0x32,
0x00, 0x13,
0x00, 0x0e, /* 12db */
};
void
sst_set_ger( fd, value )
int fd, value;
{
struct audio_ioctl ai;
if ( ( value < -10 ) || ( value > 18 ) )
{
char buf [255];
sprintf (buf, "sst_set_ger: GER %d out of range", value);
warn(buf);
return;
}
/* Add 10 to the value to get the index into the table. */
ai.control = AUDIO_MAP_GER;
ai.data[0] = ger_table[value + 10][1];
ai.data[1] = ger_table[value + 10][0];
if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
{
perror( "sst_set_ger: SETREG GER" );
}
ai.control = AUDIO_MAP_MMR1;
if ( ioctl( fd, AUDIOGETREG, &ai ) < 0 )
{
perror( "sst_set_ger: GETREG MMR1" );
}
ai.data[0] |= AUDIO_MMR1_BITS_LOAD_GER;
if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
{
perror( "sst_set_ger: SETREG MMR1" );
}
}
void
sst_set_gr( fd, value )
int fd, value;
{
struct audio_ioctl ai;
if ( ( value < -18 ) || ( value > 12 ) )
{
char buf [255];
sprintf (buf, "sst_set_gr: GR %d out of range", value);
warn (buf);
return;
}
ai.control = AUDIO_MAP_GR;
ai.data[0] = gr_gx_table[value + 18][1];
ai.data[1] = gr_gx_table[value + 18][0];
if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
{
perror( "sst_set_gr: SETREG GR" );
}
ai.control = AUDIO_MAP_MMR1;
if ( ioctl( fd, AUDIOGETREG, &ai ) < 0 )
{
perror( "sst_set_gr: GETREG MMR1" );
}
ai.data[0] |= AUDIO_MMR1_BITS_LOAD_GR;
if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
{
perror( "sst_set_gr: SETREG MMR1" );
}
}
void
sst_set_gx( fd, value )
int fd, value;
{
struct audio_ioctl ai;
char buf [255];
if ( ( value < -18 ) || ( value > 12 ) )
{
sprintf (buf, "sst_set_gx: GX %d out of range", value);
warn (buf);
return;
}
/* We add 18 to get the index into the table, since entry 0 represents
* -18db.
*/
ai.control = AUDIO_MAP_GX;
ai.data[0] = gr_gx_table[value + 18][1];
ai.data[1] = gr_gx_table[value + 18][0];
if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
{
perror( "sst_set_gx: SETREG GX" );
}
ai.control = AUDIO_MAP_MMR1;
if ( ioctl( fd, AUDIOGETREG, &ai ) < 0 )
{
perror( "sst_set_gx: GETREG MMR1" );
}
ai.data[0] |= AUDIO_MMR1_BITS_LOAD_GX;
if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
{
perror( "sst_set_gx: SETREG MMR1" );
}
}
void
sst_tones( fd, dhz1, dhz2, thz, rhz, usec )
int fd, dhz1, dhz2, thz, rhz, usec;
{
char buf [255];
struct audio_ioctl ai;
int dval1, dval2, tval, rval;
unsigned char oldmmr2, newmmr2;
if ( dhz1 == 0 )
dval1 = 0;
else
{
dval1 = ( dhz1 * 128 + 63 ) / 1000;
if ( ( dval1 < 1 ) || ( dval1 > 255 ) )
{
sprintf(buf, "sst_tones: dhz1 %d out of range", dhz1 );
warn (buf);
return;
}
}
if ( dhz2 == 0 )
dval2 = 0;
else
{
dval2 = ( dhz2 * 128 + 63 ) / 1000;
if ( ( dval2 < 1 ) || ( dval2 > 255 ) )
{
sprintf(buf, "sst_tones: dhz2 %d out of range", dhz2 );
warn (buf);
return;
}
}
if ( thz == 0 )
tval = 0;
else
{
tval = ( thz * 128 + 63 ) / 2000;
if ( ( tval < 1 ) || ( tval > 255 ) )
{
sprintf(buf, "sst_tones: thz %d out of range", thz );
warn (buf);
return;
}
}
if ( rhz == 0 )
rval = 0;
else
{
rval = ( rhz * 128 + 63 ) / 2000;
if ( ( rval < 1 ) || ( rval > 255 ) )
{
sprintf(buf, "sst_tones: rhz %d out of range", dhz2 );
warn (buf);
return;
}
}
if ( ( dval1 != 0 || dval2 != 0 ) && ( tval != 0 || rval != 0 ) )
{
sprintf(buf, "sst_tones: cannot use DTMF and TONE or RINGER at the same time", dhz2 );
warn (buf);
return;
}
if ( tval != 0 && rval != 0 )
{
sprintf(buf, "sst_tones: cannot use TONE and RINGER at the same time", dhz2 );
warn (buf);
return;
}
ai.control = AUDIO_MAP_MMR2;
if ( ioctl( fd, AUDIOGETREG, &ai ) < 0 )
{
perror( "sst_tones: GETREG MMR2" );
}
oldmmr2 = newmmr2 = ai.data[0];
if ( dval1 != 0 || dval2 != 0 )
{
newmmr2 |= AUDIO_MMR2_BITS_DTMF;
ai.control = AUDIO_MAP_FTGR;
ai.data[0] = dval1;
ai.data[1] = dval2;
if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
{
perror( "sst_tones: SETREG FTGR" );
}
}
if ( tval != 0 )
{
newmmr2 |= AUDIO_MMR2_BITS_TONE;
ai.control = AUDIO_MAP_FTGR;
ai.data[0] = tval;
ai.data[1] = 0;
if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
{
perror( "sst_tones: SETREG FTGR" );
}
}
if ( rval != 0 )
{
newmmr2 |= AUDIO_MMR2_BITS_RINGER;
ai.control = AUDIO_MAP_FTGR;
ai.data[0] = rval;
ai.data[1] = 0;
if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
{
perror( "sst_tones: SETREG FTGR" );
}
}
ai.control = AUDIO_MAP_MMR2;
ai.data[0] = newmmr2;
if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
{
perror( "sst_tones: SETREG MMR2" );
}
usleep( usec );
ai.data[0] = oldmmr2;
if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
{
perror( "sst_tones: SETREG MMR2" );
}
}
void
sst_dtmf( fd, dial, usecper, usecpause )
int fd, usecper, usecpause;
char *dial;
{
char *cp;
for ( cp = dial; *cp != '\0'; cp++ )
{
switch ( *cp )
{
case '1': sst_tones( fd, 703, 1211, 0, 0, usecper ); break;
case '2': sst_tones( fd, 703, 1336, 0, 0, usecper ); break;
case '3': sst_tones( fd, 703, 1492, 0, 0, usecper ); break;
case 'A': sst_tones( fd, 703, 1648, 0, 0, usecper ); break;
case '4': sst_tones( fd, 773, 1211, 0, 0, usecper ); break;
case '5': sst_tones( fd, 773, 1336, 0, 0, usecper ); break;
case '6': sst_tones( fd, 773, 1492, 0, 0, usecper ); break;
case 'B': sst_tones( fd, 773, 1648, 0, 0, usecper ); break;
case '7': sst_tones( fd, 859, 1211, 0, 0, usecper ); break;
case '8': sst_tones( fd, 859, 1336, 0, 0, usecper ); break;
case '9': sst_tones( fd, 859, 1492, 0, 0, usecper ); break;
case 'C': sst_tones( fd, 859, 1648, 0, 0, usecper ); break;
case '*': sst_tones( fd, 945, 1211, 0, 0, usecper ); break;
case '0': sst_tones( fd, 945, 1336, 0, 0, usecper ); break;
case '#': sst_tones( fd, 945, 1492, 0, 0, usecper ); break;
case 'D': sst_tones( fd, 945, 1648, 0, 0, usecper ); break;
case ' ': case '-': case '(': case ')': case '+':
continue; /* ignore */
case ',': usleep( usecper ); break; /* big pause */
default:
{
char buf [255];
sprintf( buf, "sst_dtmf: unknown dialing code '%c'", *cp );
warn (buf);
}
}
usleep( usecpause );
}
}
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.