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comparison src/libsst.c @ 0:376386a54a3c r19-14

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Import from CVS: tag r19-14
author cvs
date Mon, 13 Aug 2007 08:45:50 +0200
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-1:000000000000 0:376386a54a3c
1 /* libsst.c - SPARC sound tools library
2 **
3 ** Copyright (C) 1989 by Jef Poskanzer.
4 **
5 ** Permission to use, copy, modify, and distribute this software and its
6 ** documentation for any purpose and without fee is hereby granted, provided
7 ** that the above copyright notice appear in all copies and that both that
8 ** copyright notice and this permission notice appear in supporting
9 ** documentation. This software is provided "as is" without express or
10 ** implied warranty.
11
12 ** Hacked on by jwz for emacs.
13
14 */
15
16 /* Synched up with: Not in FSF. */
17
18 #ifdef emacs
19 #include <config.h>
20 #include "lisp.h"
21 #else
22 #if __STDC__ || defined(STDC_HEADERS)
23 #include <stdlib.h>
24 #include <unistd.h>
25 #endif
26 #include <stdio.h>
27 #endif
28 #include <fcntl.h>
29 #include "libsst.h"
30
31 #define AUDBUF 1024
32
33 extern void usleep();
34
35 int
36 sst_open(play_level, record_level)
37 int play_level, record_level;
38 {
39 int fd, i, gr, ger, gx;
40 struct audio_ioctl ai;
41 char *getenv(), *ep;
42
43 fd = open( "/dev/audio", O_RDWR );
44 if ( fd < 0 )
45 {
46 perror( "sst_open: open /dev/audio" );
47 return( fd );
48 }
49
50 #ifdef AUDIOSETQSIZE /* This no longer exists as of 4.1.2. */
51
52 /* Shrink audio device's queue size, to cut down time delay. */
53 i = AUDBUF;
54 if ( ioctl( fd, AUDIOSETQSIZE, &i ) < 0 )
55 {
56 perror( "sst_open: SETQSIZE" );
57 return( fd );
58 }
59 #endif /* AUDIOSETQSIZE */
60
61 /* Set gains. -10 <= ger <= 18, -18 <= gr <= 12, -18 <= gx <= 12. */
62 if (!play_level)
63 {
64 play_level = 75;
65 if ( (ep = getenv( "SST_PLAY" )) != NULL )
66 {
67 play_level = atoi( ep );
68 if ( play_level < 0 || play_level > 99 )
69 {
70 warn( "sst_open: SST_PLAY must be between 0 and 99" );
71 return( -1 );
72 }
73 }
74 }
75 if (!record_level)
76 {
77 record_level = 75;
78 if ( (ep = getenv( "SST_RECORD" )) != NULL )
79 {
80 record_level = atoi( ep );
81 if ( record_level < 0 || record_level > 99 )
82 {
83 warn( "sst_open: SST_RECORD must be between 0 and 99" );
84 return( -1 );
85 }
86 }
87 }
88
89 play_level = play_level * 59 / 100 - 28;
90 ger = play_level / 2;
91 gr = play_level - ger;
92 if ( ger < -10 )
93 {
94 ger = -10;
95 gr = play_level - ger;
96 }
97 if ( gr > 12 )
98 {
99 gr = 12;
100 ger = play_level - gr;
101 }
102 gx = record_level * 31 / 100 - 18;
103 sst_set_gr( fd, gr );
104 sst_set_ger( fd, ger );
105 sst_set_gx( fd, gx );
106
107 /* Initialize the MMR2 register to send the output to either
108 ** the speaker or the earphone jack, depending on SST_EARPHONES.
109 */
110 ai.control = AUDIO_MAP_MMR2;
111 if ( ioctl( fd, AUDIOGETREG, &ai ) < 0 )
112 {
113 perror( "sst_open: GETREG MMR2" );
114 return( -1 );
115 }
116 if ( (ep = getenv( "SST_EARPHONES" )) != NULL )
117 ai.data[0] &= ~AUDIO_MMR2_BITS_LS;
118 else
119 ai.data[0] |= AUDIO_MMR2_BITS_LS;
120 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
121 {
122 perror( "sst_open: SETREG MMR2" );
123 return( fd );
124 }
125
126 return fd;
127 }
128
129 void
130 sst_close( fd )
131 int fd;
132 {
133 struct audio_ioctl ai;
134
135 ai.control = AUDIO_MAP_MMR1;
136 ai.data[0] = 0;
137 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
138 {
139 perror( "sst_close: SETREG MMR1" );
140 }
141 ai.control = AUDIO_MAP_MMR2;
142 ai.data[0] = 0;
143 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
144 {
145 perror( "sst_close: SETREG MMR2" );
146 }
147 close( fd );
148 }
149
150 /* These are tables of values to be loaded into various gain registers.
151 */
152
153 static unsigned char ger_table[][2] = {
154 0xaa, 0xaa, /* -10db */
155 0x79, 0xac,
156 0x41, 0x99,
157 0x9c, 0xde,
158 0x74, 0x9c, /* -6db */
159 0x6a, 0xae,
160 0xab, 0xdf,
161 0x64, 0xab,
162 0x2a, 0xbd,
163 0x5c, 0xce,
164 0x00, 0x99, /* 0db */
165 0x43, 0xdd,
166 0x52, 0xef,
167 0x55, 0x42,
168 0x31, 0xdd,
169 0x43, 0x1f,
170 0x40, 0xdd, /* 6db */
171 0x44, 0x0f,
172 0x31, 0x1f,
173 0x10, 0xdd,
174 0x41, 0x0f,
175 0x60, 0x0b,
176 0x42, 0x10, /* 12db */
177 0x11, 0x0f,
178 0x72, 0x00,
179 0x21, 0x10,
180 0x22, 0x00,
181 0x00, 0x0b,
182 0x00, 0x0f, /* 18db */
183 };
184
185
186 static unsigned char gr_gx_table[][2] = {
187 0x8b, 0x7c, /* -18db */
188 0x8b, 0x35,
189 0x8b, 0x24,
190 0x91, 0x23,
191 0x91, 0x2a,
192 0x91, 0x3b,
193 0x91, 0xf9, /* -12db */
194 0x91, 0xb6,
195 0x91, 0xa4,
196 0x92, 0x32,
197 0x92, 0xaa,
198 0x93, 0xb3,
199 0x9f, 0x91, /* -6db */
200 0x9b, 0xf9,
201 0x9a, 0x4a,
202 0xa2, 0xa2,
203 0xaa, 0xa3,
204 0xbb, 0x52,
205 0x08, 0x08, /* 0db */
206 0x3d, 0xac,
207 0x25, 0x33,
208 0x21, 0x22,
209 0x12, 0xa2,
210 0x11, 0x3b,
211 0x10, 0xf2, /* 6db */
212 0x02, 0xca,
213 0x01, 0x5a,
214 0x01, 0x12,
215 0x00, 0x32,
216 0x00, 0x13,
217 0x00, 0x0e, /* 12db */
218 };
219
220 void
221 sst_set_ger( fd, value )
222 int fd, value;
223 {
224 struct audio_ioctl ai;
225
226 if ( ( value < -10 ) || ( value > 18 ) )
227 {
228 char buf [255];
229 sprintf (buf, "sst_set_ger: GER %d out of range", value);
230 warn(buf);
231 return;
232 }
233
234 /* Add 10 to the value to get the index into the table. */
235 ai.control = AUDIO_MAP_GER;
236 ai.data[0] = ger_table[value + 10][1];
237 ai.data[1] = ger_table[value + 10][0];
238
239 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
240 {
241 perror( "sst_set_ger: SETREG GER" );
242 }
243
244 ai.control = AUDIO_MAP_MMR1;
245 if ( ioctl( fd, AUDIOGETREG, &ai ) < 0 )
246 {
247 perror( "sst_set_ger: GETREG MMR1" );
248 }
249 ai.data[0] |= AUDIO_MMR1_BITS_LOAD_GER;
250 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
251 {
252 perror( "sst_set_ger: SETREG MMR1" );
253 }
254 }
255
256 void
257 sst_set_gr( fd, value )
258 int fd, value;
259 {
260 struct audio_ioctl ai;
261
262 if ( ( value < -18 ) || ( value > 12 ) )
263 {
264 char buf [255];
265 sprintf (buf, "sst_set_gr: GR %d out of range", value);
266 warn (buf);
267 return;
268 }
269
270 ai.control = AUDIO_MAP_GR;
271 ai.data[0] = gr_gx_table[value + 18][1];
272 ai.data[1] = gr_gx_table[value + 18][0];
273
274 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
275 {
276 perror( "sst_set_gr: SETREG GR" );
277 }
278
279 ai.control = AUDIO_MAP_MMR1;
280 if ( ioctl( fd, AUDIOGETREG, &ai ) < 0 )
281 {
282 perror( "sst_set_gr: GETREG MMR1" );
283 }
284 ai.data[0] |= AUDIO_MMR1_BITS_LOAD_GR;
285 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
286 {
287 perror( "sst_set_gr: SETREG MMR1" );
288 }
289 }
290
291 void
292 sst_set_gx( fd, value )
293 int fd, value;
294 {
295 struct audio_ioctl ai;
296 char buf [255];
297
298 if ( ( value < -18 ) || ( value > 12 ) )
299 {
300 sprintf (buf, "sst_set_gx: GX %d out of range", value);
301 warn (buf);
302 return;
303 }
304
305 /* We add 18 to get the index into the table, since entry 0 represents
306 * -18db.
307 */
308 ai.control = AUDIO_MAP_GX;
309 ai.data[0] = gr_gx_table[value + 18][1];
310 ai.data[1] = gr_gx_table[value + 18][0];
311
312 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
313 {
314 perror( "sst_set_gx: SETREG GX" );
315 }
316
317 ai.control = AUDIO_MAP_MMR1;
318 if ( ioctl( fd, AUDIOGETREG, &ai ) < 0 )
319 {
320 perror( "sst_set_gx: GETREG MMR1" );
321 }
322 ai.data[0] |= AUDIO_MMR1_BITS_LOAD_GX;
323 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
324 {
325 perror( "sst_set_gx: SETREG MMR1" );
326 }
327 }
328
329 void
330 sst_tones( fd, dhz1, dhz2, thz, rhz, usec )
331 int fd, dhz1, dhz2, thz, rhz, usec;
332 {
333 char buf [255];
334 struct audio_ioctl ai;
335 int dval1, dval2, tval, rval;
336 unsigned char oldmmr2, newmmr2;
337
338 if ( dhz1 == 0 )
339 dval1 = 0;
340 else
341 {
342 dval1 = ( dhz1 * 128 + 63 ) / 1000;
343 if ( ( dval1 < 1 ) || ( dval1 > 255 ) )
344 {
345 sprintf(buf, "sst_tones: dhz1 %d out of range", dhz1 );
346 warn (buf);
347 return;
348 }
349 }
350
351 if ( dhz2 == 0 )
352 dval2 = 0;
353 else
354 {
355 dval2 = ( dhz2 * 128 + 63 ) / 1000;
356 if ( ( dval2 < 1 ) || ( dval2 > 255 ) )
357 {
358 sprintf(buf, "sst_tones: dhz2 %d out of range", dhz2 );
359 warn (buf);
360 return;
361 }
362 }
363
364 if ( thz == 0 )
365 tval = 0;
366 else
367 {
368 tval = ( thz * 128 + 63 ) / 2000;
369 if ( ( tval < 1 ) || ( tval > 255 ) )
370 {
371 sprintf(buf, "sst_tones: thz %d out of range", thz );
372 warn (buf);
373 return;
374 }
375 }
376
377 if ( rhz == 0 )
378 rval = 0;
379 else
380 {
381 rval = ( rhz * 128 + 63 ) / 2000;
382 if ( ( rval < 1 ) || ( rval > 255 ) )
383 {
384 sprintf(buf, "sst_tones: rhz %d out of range", dhz2 );
385 warn (buf);
386 return;
387 }
388 }
389
390 if ( ( dval1 != 0 || dval2 != 0 ) && ( tval != 0 || rval != 0 ) )
391 {
392 sprintf(buf, "sst_tones: cannot use DTMF and TONE or RINGER at the same time", dhz2 );
393 warn (buf);
394 return;
395 }
396
397 if ( tval != 0 && rval != 0 )
398 {
399 sprintf(buf, "sst_tones: cannot use TONE and RINGER at the same time", dhz2 );
400 warn (buf);
401 return;
402 }
403
404 ai.control = AUDIO_MAP_MMR2;
405 if ( ioctl( fd, AUDIOGETREG, &ai ) < 0 )
406 {
407 perror( "sst_tones: GETREG MMR2" );
408 }
409 oldmmr2 = newmmr2 = ai.data[0];
410
411 if ( dval1 != 0 || dval2 != 0 )
412 {
413 newmmr2 |= AUDIO_MMR2_BITS_DTMF;
414 ai.control = AUDIO_MAP_FTGR;
415 ai.data[0] = dval1;
416 ai.data[1] = dval2;
417 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
418 {
419 perror( "sst_tones: SETREG FTGR" );
420 }
421 }
422
423 if ( tval != 0 )
424 {
425 newmmr2 |= AUDIO_MMR2_BITS_TONE;
426 ai.control = AUDIO_MAP_FTGR;
427 ai.data[0] = tval;
428 ai.data[1] = 0;
429 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
430 {
431 perror( "sst_tones: SETREG FTGR" );
432 }
433 }
434
435 if ( rval != 0 )
436 {
437 newmmr2 |= AUDIO_MMR2_BITS_RINGER;
438 ai.control = AUDIO_MAP_FTGR;
439 ai.data[0] = rval;
440 ai.data[1] = 0;
441 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
442 {
443 perror( "sst_tones: SETREG FTGR" );
444 }
445 }
446
447 ai.control = AUDIO_MAP_MMR2;
448 ai.data[0] = newmmr2;
449 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
450 {
451 perror( "sst_tones: SETREG MMR2" );
452 }
453
454 usleep( usec );
455
456 ai.data[0] = oldmmr2;
457 if ( ioctl( fd, AUDIOSETREG, &ai ) < 0 )
458 {
459 perror( "sst_tones: SETREG MMR2" );
460 }
461 }
462
463 void
464 sst_dtmf( fd, dial, usecper, usecpause )
465 int fd, usecper, usecpause;
466 char *dial;
467 {
468 char *cp;
469
470 for ( cp = dial; *cp != '\0'; cp++ )
471 {
472 switch ( *cp )
473 {
474 case '1': sst_tones( fd, 703, 1211, 0, 0, usecper ); break;
475 case '2': sst_tones( fd, 703, 1336, 0, 0, usecper ); break;
476 case '3': sst_tones( fd, 703, 1492, 0, 0, usecper ); break;
477 case 'A': sst_tones( fd, 703, 1648, 0, 0, usecper ); break;
478 case '4': sst_tones( fd, 773, 1211, 0, 0, usecper ); break;
479 case '5': sst_tones( fd, 773, 1336, 0, 0, usecper ); break;
480 case '6': sst_tones( fd, 773, 1492, 0, 0, usecper ); break;
481 case 'B': sst_tones( fd, 773, 1648, 0, 0, usecper ); break;
482 case '7': sst_tones( fd, 859, 1211, 0, 0, usecper ); break;
483 case '8': sst_tones( fd, 859, 1336, 0, 0, usecper ); break;
484 case '9': sst_tones( fd, 859, 1492, 0, 0, usecper ); break;
485 case 'C': sst_tones( fd, 859, 1648, 0, 0, usecper ); break;
486 case '*': sst_tones( fd, 945, 1211, 0, 0, usecper ); break;
487 case '0': sst_tones( fd, 945, 1336, 0, 0, usecper ); break;
488 case '#': sst_tones( fd, 945, 1492, 0, 0, usecper ); break;
489 case 'D': sst_tones( fd, 945, 1648, 0, 0, usecper ); break;
490
491 case ' ': case '-': case '(': case ')': case '+':
492 continue; /* ignore */
493
494 case ',': usleep( usecper ); break; /* big pause */
495
496 default:
497 {
498 char buf [255];
499 sprintf( buf, "sst_dtmf: unknown dialing code '%c'", *cp );
500 warn (buf);
501 }
502 }
503 usleep( usecpause );
504 }
505 }