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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 );
- }
- }
-