]> code.delx.au - pulseaudio/blob - src/modules/alsa/alsa-mixer.c
delx.au / code / pulseaudio / blob
summary | shortlog | log | commit | commitdiff | tree
history | raw | HEAD
Merge remote branch 'tanuk/master'
[pulseaudio] / src / modules / alsa / alsa-mixer.c
1 /***
2 This file is part of PulseAudio.
3
4 Copyright 2004-2009 Lennart Poettering
5 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
6
7 PulseAudio is free software; you can redistribute it and/or modify
8 it under the terms of the GNU Lesser General Public License as published
9 by the Free Software Foundation; either version 2.1 of the License,
10 or (at your option) any later version.
11
12 PulseAudio is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 General Public License for more details.
16
17 You should have received a copy of the GNU Lesser General Public License
18 along with PulseAudio; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20 USA.
21 ***/
22
23 #ifdef HAVE_CONFIG_H
24 #include <config.h>
25 #endif
26
27 #include <sys/types.h>
28 #include <limits.h>
29 #include <asoundlib.h>
30
31 #ifdef HAVE_VALGRIND_MEMCHECK_H
32 #include <valgrind/memcheck.h>
33 #endif
34
35 #include <pulse/sample.h>
36 #include <pulse/xmalloc.h>
37 #include <pulse/timeval.h>
38 #include <pulse/util.h>
39 #include <pulse/i18n.h>
40 #include <pulse/utf8.h>
41
42 #include <pulsecore/log.h>
43 #include <pulsecore/macro.h>
44 #include <pulsecore/core-util.h>
45 #include <pulsecore/atomic.h>
46 #include <pulsecore/core-error.h>
47 #include <pulsecore/once.h>
48 #include <pulsecore/thread.h>
49 #include <pulsecore/conf-parser.h>
50 #include <pulsecore/strbuf.h>
51
52 #include "alsa-mixer.h"
53 #include "alsa-util.h"
54
55 struct description_map {
56 const char *name;
57 const char *description;
58 };
59
60 static const char *lookup_description(const char *name, const struct description_map dm[], unsigned n) {
61 unsigned i;
62
63 for (i = 0; i < n; i++)
64 if (pa_streq(dm[i].name, name))
65 return dm[i].description;
66
67 return NULL;
68 }
69
70 struct pa_alsa_fdlist {
71 unsigned num_fds;
72 struct pollfd *fds;
73 /* This is a temporary buffer used to avoid lots of mallocs */
74 struct pollfd *work_fds;
75
76 snd_mixer_t *mixer;
77
78 pa_mainloop_api *m;
79 pa_defer_event *defer;
80 pa_io_event **ios;
81
82 pa_bool_t polled;
83
84 void (*cb)(void *userdata);
85 void *userdata;
86 };
87
88 static void io_cb(pa_mainloop_api*a, pa_io_event* e, int fd, pa_io_event_flags_t events, void *userdata) {
89
90 struct pa_alsa_fdlist *fdl = userdata;
91 int err;
92 unsigned i;
93 unsigned short revents;
94
95 pa_assert(a);
96 pa_assert(fdl);
97 pa_assert(fdl->mixer);
98 pa_assert(fdl->fds);
99 pa_assert(fdl->work_fds);
100
101 if (fdl->polled)
102 return;
103
104 fdl->polled = TRUE;
105
106 memcpy(fdl->work_fds, fdl->fds, sizeof(struct pollfd) * fdl->num_fds);
107
108 for (i = 0; i < fdl->num_fds; i++) {
109 if (e == fdl->ios[i]) {
110 if (events & PA_IO_EVENT_INPUT)
111 fdl->work_fds[i].revents |= POLLIN;
112 if (events & PA_IO_EVENT_OUTPUT)
113 fdl->work_fds[i].revents |= POLLOUT;
114 if (events & PA_IO_EVENT_ERROR)
115 fdl->work_fds[i].revents |= POLLERR;
116 if (events & PA_IO_EVENT_HANGUP)
117 fdl->work_fds[i].revents |= POLLHUP;
118 break;
119 }
120 }
121
122 pa_assert(i != fdl->num_fds);
123
124 if ((err = snd_mixer_poll_descriptors_revents(fdl->mixer, fdl->work_fds, fdl->num_fds, &revents)) < 0) {
125 pa_log_error("Unable to get poll revent: %s", pa_alsa_strerror(err));
126 return;
127 }
128
129 a->defer_enable(fdl->defer, 1);
130
131 if (revents)
132 snd_mixer_handle_events(fdl->mixer);
133 }
134
135 static void defer_cb(pa_mainloop_api*a, pa_defer_event* e, void *userdata) {
136 struct pa_alsa_fdlist *fdl = userdata;
137 unsigned num_fds, i;
138 int err, n;
139 struct pollfd *temp;
140
141 pa_assert(a);
142 pa_assert(fdl);
143 pa_assert(fdl->mixer);
144
145 a->defer_enable(fdl->defer, 0);
146
147 if ((n = snd_mixer_poll_descriptors_count(fdl->mixer)) < 0) {
148 pa_log("snd_mixer_poll_descriptors_count() failed: %s", pa_alsa_strerror(n));
149 return;
150 }
151 num_fds = (unsigned) n;
152
153 if (num_fds != fdl->num_fds) {
154 if (fdl->fds)
155 pa_xfree(fdl->fds);
156 if (fdl->work_fds)
157 pa_xfree(fdl->work_fds);
158 fdl->fds = pa_xnew0(struct pollfd, num_fds);
159 fdl->work_fds = pa_xnew(struct pollfd, num_fds);
160 }
161
162 memset(fdl->work_fds, 0, sizeof(struct pollfd) * num_fds);
163
164 if ((err = snd_mixer_poll_descriptors(fdl->mixer, fdl->work_fds, num_fds)) < 0) {
165 pa_log_error("Unable to get poll descriptors: %s", pa_alsa_strerror(err));
166 return;
167 }
168
169 fdl->polled = FALSE;
170
171 if (memcmp(fdl->fds, fdl->work_fds, sizeof(struct pollfd) * num_fds) == 0)
172 return;
173
174 if (fdl->ios) {
175 for (i = 0; i < fdl->num_fds; i++)
176 a->io_free(fdl->ios[i]);
177
178 if (num_fds != fdl->num_fds) {
179 pa_xfree(fdl->ios);
180 fdl->ios = NULL;
181 }
182 }
183
184 if (!fdl->ios)
185 fdl->ios = pa_xnew(pa_io_event*, num_fds);
186
187 /* Swap pointers */
188 temp = fdl->work_fds;
189 fdl->work_fds = fdl->fds;
190 fdl->fds = temp;
191
192 fdl->num_fds = num_fds;
193
194 for (i = 0;i < num_fds;i++)
195 fdl->ios[i] = a->io_new(a, fdl->fds[i].fd,
196 ((fdl->fds[i].events & POLLIN) ? PA_IO_EVENT_INPUT : 0) |
197 ((fdl->fds[i].events & POLLOUT) ? PA_IO_EVENT_OUTPUT : 0),
198 io_cb, fdl);
199 }
200
201 struct pa_alsa_fdlist *pa_alsa_fdlist_new(void) {
202 struct pa_alsa_fdlist *fdl;
203
204 fdl = pa_xnew0(struct pa_alsa_fdlist, 1);
205
206 return fdl;
207 }
208
209 void pa_alsa_fdlist_free(struct pa_alsa_fdlist *fdl) {
210 pa_assert(fdl);
211
212 if (fdl->defer) {
213 pa_assert(fdl->m);
214 fdl->m->defer_free(fdl->defer);
215 }
216
217 if (fdl->ios) {
218 unsigned i;
219 pa_assert(fdl->m);
220 for (i = 0; i < fdl->num_fds; i++)
221 fdl->m->io_free(fdl->ios[i]);
222 pa_xfree(fdl->ios);
223 }
224
225 if (fdl->fds)
226 pa_xfree(fdl->fds);
227 if (fdl->work_fds)
228 pa_xfree(fdl->work_fds);
229
230 pa_xfree(fdl);
231 }
232
233 int pa_alsa_fdlist_set_mixer(struct pa_alsa_fdlist *fdl, snd_mixer_t *mixer_handle, pa_mainloop_api* m) {
234 pa_assert(fdl);
235 pa_assert(mixer_handle);
236 pa_assert(m);
237 pa_assert(!fdl->m);
238
239 fdl->mixer = mixer_handle;
240 fdl->m = m;
241 fdl->defer = m->defer_new(m, defer_cb, fdl);
242
243 return 0;
244 }
245
246 static int prepare_mixer(snd_mixer_t *mixer, const char *dev) {
247 int err;
248
249 pa_assert(mixer);
250 pa_assert(dev);
251
252 if ((err = snd_mixer_attach(mixer, dev)) < 0) {
253 pa_log_info("Unable to attach to mixer %s: %s", dev, pa_alsa_strerror(err));
254 return -1;
255 }
256
257 if ((err = snd_mixer_selem_register(mixer, NULL, NULL)) < 0) {
258 pa_log_warn("Unable to register mixer: %s", pa_alsa_strerror(err));
259 return -1;
260 }
261
262 if ((err = snd_mixer_load(mixer)) < 0) {
263 pa_log_warn("Unable to load mixer: %s", pa_alsa_strerror(err));
264 return -1;
265 }
266
267 pa_log_info("Successfully attached to mixer '%s'", dev);
268 return 0;
269 }
270
271 snd_mixer_t *pa_alsa_open_mixer_for_pcm(snd_pcm_t *pcm, char **ctl_device) {
272 int err;
273 snd_mixer_t *m;
274 const char *dev;
275 snd_pcm_info_t* info;
276 snd_pcm_info_alloca(&info);
277
278 pa_assert(pcm);
279
280 if ((err = snd_mixer_open(&m, 0)) < 0) {
281 pa_log("Error opening mixer: %s", pa_alsa_strerror(err));
282 return NULL;
283 }
284
285 /* First, try by name */
286 if ((dev = snd_pcm_name(pcm)))
287 if (prepare_mixer(m, dev) >= 0) {
288 if (ctl_device)
289 *ctl_device = pa_xstrdup(dev);
290
291 return m;
292 }
293
294 /* Then, try by card index */
295 if (snd_pcm_info(pcm, info) >= 0) {
296 char *md;
297 int card_idx;
298
299 if ((card_idx = snd_pcm_info_get_card(info)) >= 0) {
300
301 md = pa_sprintf_malloc("hw:%i", card_idx);
302
303 if (!dev || !pa_streq(dev, md))
304 if (prepare_mixer(m, md) >= 0) {
305
306 if (ctl_device)
307 *ctl_device = md;
308 else
309 pa_xfree(md);
310
311 return m;
312 }
313
314 pa_xfree(md);
315 }
316 }
317
318 snd_mixer_close(m);
319 return NULL;
320 }
321
322 static const snd_mixer_selem_channel_id_t alsa_channel_ids[PA_CHANNEL_POSITION_MAX] = {
323 [PA_CHANNEL_POSITION_MONO] = SND_MIXER_SCHN_MONO, /* The ALSA name is just an alias! */
324
325 [PA_CHANNEL_POSITION_FRONT_CENTER] = SND_MIXER_SCHN_FRONT_CENTER,
326 [PA_CHANNEL_POSITION_FRONT_LEFT] = SND_MIXER_SCHN_FRONT_LEFT,
327 [PA_CHANNEL_POSITION_FRONT_RIGHT] = SND_MIXER_SCHN_FRONT_RIGHT,
328
329 [PA_CHANNEL_POSITION_REAR_CENTER] = SND_MIXER_SCHN_REAR_CENTER,
330 [PA_CHANNEL_POSITION_REAR_LEFT] = SND_MIXER_SCHN_REAR_LEFT,
331 [PA_CHANNEL_POSITION_REAR_RIGHT] = SND_MIXER_SCHN_REAR_RIGHT,
332
333 [PA_CHANNEL_POSITION_LFE] = SND_MIXER_SCHN_WOOFER,
334
335 [PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER] = SND_MIXER_SCHN_UNKNOWN,
336 [PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER] = SND_MIXER_SCHN_UNKNOWN,
337
338 [PA_CHANNEL_POSITION_SIDE_LEFT] = SND_MIXER_SCHN_SIDE_LEFT,
339 [PA_CHANNEL_POSITION_SIDE_RIGHT] = SND_MIXER_SCHN_SIDE_RIGHT,
340
341 [PA_CHANNEL_POSITION_AUX0] = SND_MIXER_SCHN_UNKNOWN,
342 [PA_CHANNEL_POSITION_AUX1] = SND_MIXER_SCHN_UNKNOWN,
343 [PA_CHANNEL_POSITION_AUX2] = SND_MIXER_SCHN_UNKNOWN,
344 [PA_CHANNEL_POSITION_AUX3] = SND_MIXER_SCHN_UNKNOWN,
345 [PA_CHANNEL_POSITION_AUX4] = SND_MIXER_SCHN_UNKNOWN,
346 [PA_CHANNEL_POSITION_AUX5] = SND_MIXER_SCHN_UNKNOWN,
347 [PA_CHANNEL_POSITION_AUX6] = SND_MIXER_SCHN_UNKNOWN,
348 [PA_CHANNEL_POSITION_AUX7] = SND_MIXER_SCHN_UNKNOWN,
349 [PA_CHANNEL_POSITION_AUX8] = SND_MIXER_SCHN_UNKNOWN,
350 [PA_CHANNEL_POSITION_AUX9] = SND_MIXER_SCHN_UNKNOWN,
351 [PA_CHANNEL_POSITION_AUX10] = SND_MIXER_SCHN_UNKNOWN,
352 [PA_CHANNEL_POSITION_AUX11] = SND_MIXER_SCHN_UNKNOWN,
353 [PA_CHANNEL_POSITION_AUX12] = SND_MIXER_SCHN_UNKNOWN,
354 [PA_CHANNEL_POSITION_AUX13] = SND_MIXER_SCHN_UNKNOWN,
355 [PA_CHANNEL_POSITION_AUX14] = SND_MIXER_SCHN_UNKNOWN,
356 [PA_CHANNEL_POSITION_AUX15] = SND_MIXER_SCHN_UNKNOWN,
357 [PA_CHANNEL_POSITION_AUX16] = SND_MIXER_SCHN_UNKNOWN,
358 [PA_CHANNEL_POSITION_AUX17] = SND_MIXER_SCHN_UNKNOWN,
359 [PA_CHANNEL_POSITION_AUX18] = SND_MIXER_SCHN_UNKNOWN,
360 [PA_CHANNEL_POSITION_AUX19] = SND_MIXER_SCHN_UNKNOWN,
361 [PA_CHANNEL_POSITION_AUX20] = SND_MIXER_SCHN_UNKNOWN,
362 [PA_CHANNEL_POSITION_AUX21] = SND_MIXER_SCHN_UNKNOWN,
363 [PA_CHANNEL_POSITION_AUX22] = SND_MIXER_SCHN_UNKNOWN,
364 [PA_CHANNEL_POSITION_AUX23] = SND_MIXER_SCHN_UNKNOWN,
365 [PA_CHANNEL_POSITION_AUX24] = SND_MIXER_SCHN_UNKNOWN,
366 [PA_CHANNEL_POSITION_AUX25] = SND_MIXER_SCHN_UNKNOWN,
367 [PA_CHANNEL_POSITION_AUX26] = SND_MIXER_SCHN_UNKNOWN,
368 [PA_CHANNEL_POSITION_AUX27] = SND_MIXER_SCHN_UNKNOWN,
369 [PA_CHANNEL_POSITION_AUX28] = SND_MIXER_SCHN_UNKNOWN,
370 [PA_CHANNEL_POSITION_AUX29] = SND_MIXER_SCHN_UNKNOWN,
371 [PA_CHANNEL_POSITION_AUX30] = SND_MIXER_SCHN_UNKNOWN,
372 [PA_CHANNEL_POSITION_AUX31] = SND_MIXER_SCHN_UNKNOWN,
373
374 [PA_CHANNEL_POSITION_TOP_CENTER] = SND_MIXER_SCHN_UNKNOWN,
375
376 [PA_CHANNEL_POSITION_TOP_FRONT_CENTER] = SND_MIXER_SCHN_UNKNOWN,
377 [PA_CHANNEL_POSITION_TOP_FRONT_LEFT] = SND_MIXER_SCHN_UNKNOWN,
378 [PA_CHANNEL_POSITION_TOP_FRONT_RIGHT] = SND_MIXER_SCHN_UNKNOWN,
379
380 [PA_CHANNEL_POSITION_TOP_REAR_CENTER] = SND_MIXER_SCHN_UNKNOWN,
381 [PA_CHANNEL_POSITION_TOP_REAR_LEFT] = SND_MIXER_SCHN_UNKNOWN,
382 [PA_CHANNEL_POSITION_TOP_REAR_RIGHT] = SND_MIXER_SCHN_UNKNOWN
383 };
384
385 static void setting_free(pa_alsa_setting *s) {
386 pa_assert(s);
387
388 if (s->options)
389 pa_idxset_free(s->options, NULL, NULL);
390
391 pa_xfree(s->name);
392 pa_xfree(s->description);
393 pa_xfree(s);
394 }
395
396 static void option_free(pa_alsa_option *o) {
397 pa_assert(o);
398
399 pa_xfree(o->alsa_name);
400 pa_xfree(o->name);
401 pa_xfree(o->description);
402 pa_xfree(o);
403 }
404
405 static void element_free(pa_alsa_element *e) {
406 pa_alsa_option *o;
407 pa_assert(e);
408
409 while ((o = e->options)) {
410 PA_LLIST_REMOVE(pa_alsa_option, e->options, o);
411 option_free(o);
412 }
413
414 pa_xfree(e->alsa_name);
415 pa_xfree(e);
416 }
417
418 void pa_alsa_path_free(pa_alsa_path *p) {
419 pa_alsa_element *e;
420 pa_alsa_setting *s;
421
422 pa_assert(p);
423
424 while ((e = p->elements)) {
425 PA_LLIST_REMOVE(pa_alsa_element, p->elements, e);
426 element_free(e);
427 }
428
429 while ((s = p->settings)) {
430 PA_LLIST_REMOVE(pa_alsa_setting, p->settings, s);
431 setting_free(s);
432 }
433
434 pa_xfree(p->name);
435 pa_xfree(p->description);
436 pa_xfree(p);
437 }
438
439 void pa_alsa_path_set_free(pa_alsa_path_set *ps) {
440 pa_alsa_path *p;
441 pa_assert(ps);
442
443 while ((p = ps->paths)) {
444 PA_LLIST_REMOVE(pa_alsa_path, ps->paths, p);
445 pa_alsa_path_free(p);
446 }
447
448 pa_xfree(ps);
449 }
450
451 static long to_alsa_dB(pa_volume_t v) {
452 return (long) (pa_sw_volume_to_dB(v) * 100.0);
453 }
454
455 static pa_volume_t from_alsa_dB(long v) {
456 return pa_sw_volume_from_dB((double) v / 100.0);
457 }
458
459 static long to_alsa_volume(pa_volume_t v, long min, long max) {
460 long w;
461
462 w = (long) round(((double) v * (double) (max - min)) / PA_VOLUME_NORM) + min;
463 return PA_CLAMP_UNLIKELY(w, min, max);
464 }
465
466 static pa_volume_t from_alsa_volume(long v, long min, long max) {
467 return (pa_volume_t) round(((double) (v - min) * PA_VOLUME_NORM) / (double) (max - min));
468 }
469
470 #define SELEM_INIT(sid, name) \
471 do { \
472 snd_mixer_selem_id_alloca(&(sid)); \
473 snd_mixer_selem_id_set_name((sid), (name)); \
474 snd_mixer_selem_id_set_index((sid), 0); \
475 } while(FALSE)
476
477 static int element_get_volume(pa_alsa_element *e, snd_mixer_t *m, const pa_channel_map *cm, pa_cvolume *v) {
478 snd_mixer_selem_id_t *sid;
479 snd_mixer_elem_t *me;
480 snd_mixer_selem_channel_id_t c;
481 pa_channel_position_mask_t mask = 0;
482 unsigned k;
483
484 pa_assert(m);
485 pa_assert(e);
486 pa_assert(cm);
487 pa_assert(v);
488
489 SELEM_INIT(sid, e->alsa_name);
490 if (!(me = snd_mixer_find_selem(m, sid))) {
491 pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
492 return -1;
493 }
494
495 pa_cvolume_mute(v, cm->channels);
496
497 /* We take the highest volume of all channels that match */
498
499 for (c = 0; c <= SND_MIXER_SCHN_LAST; c++) {
500 int r;
501 pa_volume_t f;
502
503 if (e->has_dB) {
504 long value = 0;
505
506 if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
507 if (snd_mixer_selem_has_playback_channel(me, c))
508 r = snd_mixer_selem_get_playback_dB(me, c, &value);
509 else
510 r = -1;
511 } else {
512 if (snd_mixer_selem_has_capture_channel(me, c))
513 r = snd_mixer_selem_get_capture_dB(me, c, &value);
514 else
515 r = -1;
516 }
517
518 if (r < 0)
519 continue;
520
521 #ifdef HAVE_VALGRIND_MEMCHECK_H
522 VALGRIND_MAKE_MEM_DEFINED(&value, sizeof(value));
523 #endif
524
525 f = from_alsa_dB(value);
526
527 } else {
528 long value = 0;
529
530 if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
531 if (snd_mixer_selem_has_playback_channel(me, c))
532 r = snd_mixer_selem_get_playback_volume(me, c, &value);
533 else
534 r = -1;
535 } else {
536 if (snd_mixer_selem_has_capture_channel(me, c))
537 r = snd_mixer_selem_get_capture_volume(me, c, &value);
538 else
539 r = -1;
540 }
541
542 if (r < 0)
543 continue;
544
545 f = from_alsa_volume(value, e->min_volume, e->max_volume);
546 }
547
548 for (k = 0; k < cm->channels; k++)
549 if (e->masks[c][e->n_channels-1] & PA_CHANNEL_POSITION_MASK(cm->map[k]))
550 if (v->values[k] < f)
551 v->values[k] = f;
552
553 mask |= e->masks[c][e->n_channels-1];
554 }
555
556 for (k = 0; k < cm->channels; k++)
557 if (!(mask & PA_CHANNEL_POSITION_MASK(cm->map[k])))
558 v->values[k] = PA_VOLUME_NORM;
559
560 return 0;
561 }
562
563 int pa_alsa_path_get_volume(pa_alsa_path *p, snd_mixer_t *m, const pa_channel_map *cm, pa_cvolume *v) {
564 pa_alsa_element *e;
565
566 pa_assert(m);
567 pa_assert(p);
568 pa_assert(cm);
569 pa_assert(v);
570
571 if (!p->has_volume)
572 return -1;
573
574 pa_cvolume_reset(v, cm->channels);
575
576 PA_LLIST_FOREACH(e, p->elements) {
577 pa_cvolume ev;
578
579 if (e->volume_use != PA_ALSA_VOLUME_MERGE)
580 continue;
581
582 pa_assert(!p->has_dB || e->has_dB);
583
584 if (element_get_volume(e, m, cm, &ev) < 0)
585 return -1;
586
587 /* If we have no dB information all we can do is take the first element and leave */
588 if (!p->has_dB) {
589 *v = ev;
590 return 0;
591 }
592
593 pa_sw_cvolume_multiply(v, v, &ev);
594 }
595
596 return 0;
597 }
598
599 static int element_get_switch(pa_alsa_element *e, snd_mixer_t *m, pa_bool_t *b) {
600 snd_mixer_selem_id_t *sid;
601 snd_mixer_elem_t *me;
602 snd_mixer_selem_channel_id_t c;
603
604 pa_assert(m);
605 pa_assert(e);
606 pa_assert(b);
607
608 SELEM_INIT(sid, e->alsa_name);
609 if (!(me = snd_mixer_find_selem(m, sid))) {
610 pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
611 return -1;
612 }
613
614 /* We return muted if at least one channel is muted */
615
616 for (c = 0; c <= SND_MIXER_SCHN_LAST; c++) {
617 int r;
618 int value = 0;
619
620 if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
621 if (snd_mixer_selem_has_playback_channel(me, c))
622 r = snd_mixer_selem_get_playback_switch(me, c, &value);
623 else
624 r = -1;
625 } else {
626 if (snd_mixer_selem_has_capture_channel(me, c))
627 r = snd_mixer_selem_get_capture_switch(me, c, &value);
628 else
629 r = -1;
630 }
631
632 if (r < 0)
633 continue;
634
635 if (!value) {
636 *b = FALSE;
637 return 0;
638 }
639 }
640
641 *b = TRUE;
642 return 0;
643 }
644
645 int pa_alsa_path_get_mute(pa_alsa_path *p, snd_mixer_t *m, pa_bool_t *muted) {
646 pa_alsa_element *e;
647
648 pa_assert(m);
649 pa_assert(p);
650 pa_assert(muted);
651
652 if (!p->has_mute)
653 return -1;
654
655 PA_LLIST_FOREACH(e, p->elements) {
656 pa_bool_t b;
657
658 if (e->switch_use != PA_ALSA_SWITCH_MUTE)
659 continue;
660
661 if (element_get_switch(e, m, &b) < 0)
662 return -1;
663
664 if (!b) {
665 *muted = TRUE;
666 return 0;
667 }
668 }
669
670 *muted = FALSE;
671 return 0;
672 }
673
674 static int element_set_volume(pa_alsa_element *e, snd_mixer_t *m, const pa_channel_map *cm, pa_cvolume *v) {
675 snd_mixer_selem_id_t *sid;
676 pa_cvolume rv;
677 snd_mixer_elem_t *me;
678 snd_mixer_selem_channel_id_t c;
679 pa_channel_position_mask_t mask = 0;
680 unsigned k;
681
682 pa_assert(m);
683 pa_assert(e);
684 pa_assert(cm);
685 pa_assert(v);
686 pa_assert(pa_cvolume_compatible_with_channel_map(v, cm));
687
688 SELEM_INIT(sid, e->alsa_name);
689 if (!(me = snd_mixer_find_selem(m, sid))) {
690 pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
691 return -1;
692 }
693
694 pa_cvolume_mute(&rv, cm->channels);
695
696 for (c = 0; c <= SND_MIXER_SCHN_LAST; c++) {
697 int r;
698 pa_volume_t f = PA_VOLUME_MUTED;
699 pa_bool_t found = FALSE;
700
701 for (k = 0; k < cm->channels; k++)
702 if (e->masks[c][e->n_channels-1] & PA_CHANNEL_POSITION_MASK(cm->map[k])) {
703 found = TRUE;
704 if (v->values[k] > f)
705 f = v->values[k];
706 }
707
708 if (!found) {
709 /* Hmm, so this channel does not exist in the volume
710 * struct, so let's bind it to the overall max of the
711 * volume. */
712 f = pa_cvolume_max(v);
713 }
714
715 if (e->has_dB) {
716 long value = to_alsa_dB(f);
717
718 if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
719 /* If we call set_play_volume() without checking first
720 * if the channel is available, ALSA behaves ver
721 * strangely and doesn't fail the call */
722 if (snd_mixer_selem_has_playback_channel(me, c)) {
723 if ((r = snd_mixer_selem_set_playback_dB(me, c, value, +1)) >= 0)
724 r = snd_mixer_selem_get_playback_dB(me, c, &value);
725 } else
726 r = -1;
727 } else {
728 if (snd_mixer_selem_has_capture_channel(me, c)) {
729 if ((r = snd_mixer_selem_set_capture_dB(me, c, value, +1)) >= 0)
730 r = snd_mixer_selem_get_capture_dB(me, c, &value);
731 } else
732 r = -1;
733 }
734
735 if (r < 0)
736 continue;
737
738 #ifdef HAVE_VALGRIND_MEMCHECK_H
739 VALGRIND_MAKE_MEM_DEFINED(&value, sizeof(value));
740 #endif
741
742 f = from_alsa_dB(value);
743
744 } else {
745 long value;
746
747 value = to_alsa_volume(f, e->min_volume, e->max_volume);
748
749 if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
750 if (snd_mixer_selem_has_playback_channel(me, c)) {
751 if ((r = snd_mixer_selem_set_playback_volume(me, c, value)) >= 0)
752 r = snd_mixer_selem_get_playback_volume(me, c, &value);
753 } else
754 r = -1;
755 } else {
756 if (snd_mixer_selem_has_capture_channel(me, c)) {
757 if ((r = snd_mixer_selem_set_capture_volume(me, c, value)) >= 0)
758 r = snd_mixer_selem_get_capture_volume(me, c, &value);
759 } else
760 r = -1;
761 }
762
763 if (r < 0)
764 continue;
765
766 f = from_alsa_volume(value, e->min_volume, e->max_volume);
767 }
768
769 for (k = 0; k < cm->channels; k++)
770 if (e->masks[c][e->n_channels-1] & PA_CHANNEL_POSITION_MASK(cm->map[k]))
771 if (rv.values[k] < f)
772 rv.values[k] = f;
773
774 mask |= e->masks[c][e->n_channels-1];
775 }
776
777 for (k = 0; k < cm->channels; k++)
778 if (!(mask & PA_CHANNEL_POSITION_MASK(cm->map[k])))
779 rv.values[k] = PA_VOLUME_NORM;
780
781 *v = rv;
782 return 0;
783 }
784
785 int pa_alsa_path_set_volume(pa_alsa_path *p, snd_mixer_t *m, const pa_channel_map *cm, pa_cvolume *v) {
786 pa_alsa_element *e;
787 pa_cvolume rv;
788
789 pa_assert(m);
790 pa_assert(p);
791 pa_assert(cm);
792 pa_assert(v);
793 pa_assert(pa_cvolume_compatible_with_channel_map(v, cm));
794
795 if (!p->has_volume)
796 return -1;
797
798 rv = *v; /* Remaining adjustment */
799 pa_cvolume_reset(v, cm->channels); /* Adjustment done */
800
801 PA_LLIST_FOREACH(e, p->elements) {
802 pa_cvolume ev;
803
804 if (e->volume_use != PA_ALSA_VOLUME_MERGE)
805 continue;
806
807 pa_assert(!p->has_dB || e->has_dB);
808
809 ev = rv;
810 if (element_set_volume(e, m, cm, &ev) < 0)
811 return -1;
812
813 if (!p->has_dB) {
814 *v = ev;
815 return 0;
816 }
817
818 pa_sw_cvolume_multiply(v, v, &ev);
819 pa_sw_cvolume_divide(&rv, &rv, &ev);
820 }
821
822 return 0;
823 }
824
825 static int element_set_switch(pa_alsa_element *e, snd_mixer_t *m, pa_bool_t b) {
826 snd_mixer_elem_t *me;
827 snd_mixer_selem_id_t *sid;
828 int r;
829
830 pa_assert(m);
831 pa_assert(e);
832
833 SELEM_INIT(sid, e->alsa_name);
834 if (!(me = snd_mixer_find_selem(m, sid))) {
835 pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
836 return -1;
837 }
838
839 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
840 r = snd_mixer_selem_set_playback_switch_all(me, b);
841 else
842 r = snd_mixer_selem_set_capture_switch_all(me, b);
843
844 if (r < 0)
845 pa_log_warn("Failed to set switch of %s: %s", e->alsa_name, pa_alsa_strerror(errno));
846
847 return r;
848 }
849
850 int pa_alsa_path_set_mute(pa_alsa_path *p, snd_mixer_t *m, pa_bool_t muted) {
851 pa_alsa_element *e;
852
853 pa_assert(m);
854 pa_assert(p);
855
856 if (!p->has_mute)
857 return -1;
858
859 PA_LLIST_FOREACH(e, p->elements) {
860
861 if (e->switch_use != PA_ALSA_SWITCH_MUTE)
862 continue;
863
864 if (element_set_switch(e, m, !muted) < 0)
865 return -1;
866 }
867
868 return 0;
869 }
870
871 static int element_mute_volume(pa_alsa_element *e, snd_mixer_t *m) {
872 snd_mixer_elem_t *me;
873 snd_mixer_selem_id_t *sid;
874 int r;
875
876 pa_assert(m);
877 pa_assert(e);
878
879 SELEM_INIT(sid, e->alsa_name);
880 if (!(me = snd_mixer_find_selem(m, sid))) {
881 pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
882 return -1;
883 }
884
885 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
886 r = snd_mixer_selem_set_playback_volume_all(me, e->min_volume);
887 else
888 r = snd_mixer_selem_set_capture_volume_all(me, e->min_volume);
889
890 if (r < 0)
891 pa_log_warn("Faile to set volume to muted of %s: %s", e->alsa_name, pa_alsa_strerror(errno));
892
893 return r;
894 }
895
896 /* The volume to 0dB */
897 static int element_zero_volume(pa_alsa_element *e, snd_mixer_t *m) {
898 snd_mixer_elem_t *me;
899 snd_mixer_selem_id_t *sid;
900 int r;
901
902 pa_assert(m);
903 pa_assert(e);
904
905 SELEM_INIT(sid, e->alsa_name);
906 if (!(me = snd_mixer_find_selem(m, sid))) {
907 pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
908 return -1;
909 }
910
911 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
912 r = snd_mixer_selem_set_playback_dB_all(me, 0, +1);
913 else
914 r = snd_mixer_selem_set_capture_dB_all(me, 0, +1);
915
916 if (r < 0)
917 pa_log_warn("Faile to set volume to 0dB of %s: %s", e->alsa_name, pa_alsa_strerror(errno));
918
919 return r;
920 }
921
922 int pa_alsa_path_select(pa_alsa_path *p, snd_mixer_t *m) {
923 pa_alsa_element *e;
924 int r = 0;
925
926 pa_assert(m);
927 pa_assert(p);
928
929 pa_log_debug("Activating path %s", p->name);
930 pa_alsa_path_dump(p);
931
932 PA_LLIST_FOREACH(e, p->elements) {
933
934 switch (e->switch_use) {
935 case PA_ALSA_SWITCH_OFF:
936 r = element_set_switch(e, m, FALSE);
937 break;
938
939 case PA_ALSA_SWITCH_ON:
940 r = element_set_switch(e, m, TRUE);
941 break;
942
943 case PA_ALSA_SWITCH_MUTE:
944 case PA_ALSA_SWITCH_IGNORE:
945 case PA_ALSA_SWITCH_SELECT:
946 r = 0;
947 break;
948 }
949
950 if (r < 0)
951 return -1;
952
953 switch (e->volume_use) {
954 case PA_ALSA_VOLUME_OFF:
955 r = element_mute_volume(e, m);
956 break;
957
958 case PA_ALSA_VOLUME_ZERO:
959 r = element_zero_volume(e, m);
960 break;
961
962 case PA_ALSA_VOLUME_MERGE:
963 case PA_ALSA_VOLUME_IGNORE:
964 r = 0;
965 break;
966 }
967
968 if (r < 0)
969 return -1;
970 }
971
972 return 0;
973 }
974
975 static int check_required(pa_alsa_element *e, snd_mixer_elem_t *me) {
976 pa_bool_t has_switch;
977 pa_bool_t has_enumeration;
978 pa_bool_t has_volume;
979
980 pa_assert(e);
981 pa_assert(me);
982
983 if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
984 has_switch =
985 snd_mixer_selem_has_playback_switch(me) ||
986 (e->direction_try_other && snd_mixer_selem_has_capture_switch(me));
987 } else {
988 has_switch =
989 snd_mixer_selem_has_capture_switch(me) ||
990 (e->direction_try_other && snd_mixer_selem_has_playback_switch(me));
991 }
992
993 if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
994 has_volume =
995 snd_mixer_selem_has_playback_volume(me) ||
996 (e->direction_try_other && snd_mixer_selem_has_capture_volume(me));
997 } else {
998 has_volume =
999 snd_mixer_selem_has_capture_volume(me) ||
1000 (e->direction_try_other && snd_mixer_selem_has_playback_volume(me));
1001 }
1002
1003 has_enumeration = snd_mixer_selem_is_enumerated(me);
1004
1005 if ((e->required == PA_ALSA_REQUIRED_SWITCH && !has_switch) ||
1006 (e->required == PA_ALSA_REQUIRED_VOLUME && !has_volume) ||
1007 (e->required == PA_ALSA_REQUIRED_ENUMERATION && !has_enumeration))
1008 return -1;
1009
1010 if (e->required == PA_ALSA_REQUIRED_ANY && !(has_switch || has_volume || has_enumeration))
1011 return -1;
1012
1013 if ((e->required_absent == PA_ALSA_REQUIRED_SWITCH && has_switch) ||
1014 (e->required_absent == PA_ALSA_REQUIRED_VOLUME && has_volume) ||
1015 (e->required_absent == PA_ALSA_REQUIRED_ENUMERATION && has_enumeration))
1016 return -1;
1017
1018 if (e->required_absent == PA_ALSA_REQUIRED_ANY && (has_switch || has_volume || has_enumeration))
1019 return -1;
1020
1021 return 0;
1022 }
1023
1024 static int element_probe(pa_alsa_element *e, snd_mixer_t *m) {
1025 snd_mixer_selem_id_t *sid;
1026 snd_mixer_elem_t *me;
1027
1028 pa_assert(m);
1029 pa_assert(e);
1030
1031 SELEM_INIT(sid, e->alsa_name);
1032
1033 if (!(me = snd_mixer_find_selem(m, sid))) {
1034
1035 if (e->required != PA_ALSA_REQUIRED_IGNORE)
1036 return -1;
1037
1038 e->switch_use = PA_ALSA_SWITCH_IGNORE;
1039 e->volume_use = PA_ALSA_VOLUME_IGNORE;
1040 e->enumeration_use = PA_ALSA_VOLUME_IGNORE;
1041
1042 return 0;
1043 }
1044
1045 if (e->switch_use != PA_ALSA_SWITCH_IGNORE) {
1046 if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
1047
1048 if (!snd_mixer_selem_has_playback_switch(me)) {
1049 if (e->direction_try_other && snd_mixer_selem_has_capture_switch(me))
1050 e->direction = PA_ALSA_DIRECTION_INPUT;
1051 else
1052 e->switch_use = PA_ALSA_SWITCH_IGNORE;
1053 }
1054
1055 } else {
1056
1057 if (!snd_mixer_selem_has_capture_switch(me)) {
1058 if (e->direction_try_other && snd_mixer_selem_has_playback_switch(me))
1059 e->direction = PA_ALSA_DIRECTION_OUTPUT;
1060 else
1061 e->switch_use = PA_ALSA_SWITCH_IGNORE;
1062 }
1063 }
1064
1065 if (e->switch_use != PA_ALSA_SWITCH_IGNORE)
1066 e->direction_try_other = FALSE;
1067 }
1068
1069 if (e->volume_use != PA_ALSA_VOLUME_IGNORE) {
1070
1071 if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
1072
1073 if (!snd_mixer_selem_has_playback_volume(me)) {
1074 if (e->direction_try_other && snd_mixer_selem_has_capture_volume(me))
1075 e->direction = PA_ALSA_DIRECTION_INPUT;
1076 else
1077 e->volume_use = PA_ALSA_VOLUME_IGNORE;
1078 }
1079
1080 } else {
1081
1082 if (!snd_mixer_selem_has_capture_volume(me)) {
1083 if (e->direction_try_other && snd_mixer_selem_has_playback_volume(me))
1084 e->direction = PA_ALSA_DIRECTION_OUTPUT;
1085 else
1086 e->volume_use = PA_ALSA_VOLUME_IGNORE;
1087 }
1088 }
1089
1090 if (e->volume_use != PA_ALSA_VOLUME_IGNORE) {
1091 long min_dB = 0, max_dB = 0;
1092 int r;
1093
1094 e->direction_try_other = FALSE;
1095
1096 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1097 e->has_dB = snd_mixer_selem_get_playback_dB_range(me, &min_dB, &max_dB) >= 0;
1098 else
1099 e->has_dB = snd_mixer_selem_get_capture_dB_range(me, &min_dB, &max_dB) >= 0;
1100
1101 if (e->has_dB) {
1102 #ifdef HAVE_VALGRIND_MEMCHECK_H
1103 VALGRIND_MAKE_MEM_DEFINED(&min_dB, sizeof(min_dB));
1104 VALGRIND_MAKE_MEM_DEFINED(&max_dB, sizeof(max_dB));
1105 #endif
1106
1107 e->min_dB = ((double) min_dB) / 100.0;
1108 e->max_dB = ((double) max_dB) / 100.0;
1109
1110 if (min_dB >= max_dB) {
1111 pa_log_warn("Your kernel driver is broken: it reports a volume range from %0.2f dB to %0.2f dB which makes no sense.", e->min_dB, e->max_dB);
1112 e->has_dB = FALSE;
1113 }
1114 }
1115
1116 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1117 r = snd_mixer_selem_get_playback_volume_range(me, &e->min_volume, &e->max_volume);
1118 else
1119 r = snd_mixer_selem_get_capture_volume_range(me, &e->min_volume, &e->max_volume);
1120
1121 if (r < 0) {
1122 pa_log_warn("Failed to get volume range of %s: %s", e->alsa_name, pa_alsa_strerror(r));
1123 return -1;
1124 }
1125
1126
1127 if (e->min_volume >= e->max_volume) {
1128 pa_log_warn("Your kernel driver is broken: it reports a volume range from %li to %li which makes no sense.", e->min_volume, e->max_volume);
1129 e->volume_use = PA_ALSA_VOLUME_IGNORE;
1130
1131 } else {
1132 pa_bool_t is_mono;
1133 pa_channel_position_t p;
1134
1135 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1136 is_mono = snd_mixer_selem_is_playback_mono(me) > 0;
1137 else
1138 is_mono = snd_mixer_selem_is_capture_mono(me) > 0;
1139
1140 if (is_mono) {
1141 e->n_channels = 1;
1142
1143 if (!e->override_map) {
1144 for (p = PA_CHANNEL_POSITION_FRONT_LEFT; p < PA_CHANNEL_POSITION_MAX; p++)
1145 e->masks[alsa_channel_ids[p]][e->n_channels-1] = 0;
1146 e->masks[SND_MIXER_SCHN_MONO][e->n_channels-1] = PA_CHANNEL_POSITION_MASK_ALL;
1147 }
1148
1149 e->merged_mask = e->masks[SND_MIXER_SCHN_MONO][e->n_channels-1];
1150 } else {
1151 e->n_channels = 0;
1152 for (p = PA_CHANNEL_POSITION_FRONT_LEFT; p < PA_CHANNEL_POSITION_MAX; p++) {
1153
1154 if (alsa_channel_ids[p] == SND_MIXER_SCHN_UNKNOWN)
1155 continue;
1156
1157 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1158 e->n_channels += snd_mixer_selem_has_playback_channel(me, alsa_channel_ids[p]) > 0;
1159 else
1160 e->n_channels += snd_mixer_selem_has_capture_channel(me, alsa_channel_ids[p]) > 0;
1161 }
1162
1163 if (e->n_channels <= 0) {
1164 pa_log_warn("Volume element %s with no channels?", e->alsa_name);
1165 return -1;
1166 }
1167
1168 if (!e->override_map) {
1169 for (p = PA_CHANNEL_POSITION_FRONT_LEFT; p < PA_CHANNEL_POSITION_MAX; p++) {
1170 pa_bool_t has_channel;
1171
1172 if (alsa_channel_ids[p] == SND_MIXER_SCHN_UNKNOWN)
1173 continue;
1174
1175 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1176 has_channel = snd_mixer_selem_has_playback_channel(me, alsa_channel_ids[p]) > 0;
1177 else
1178 has_channel = snd_mixer_selem_has_capture_channel(me, alsa_channel_ids[p]) > 0;
1179
1180 e->masks[alsa_channel_ids[p]][e->n_channels-1] = has_channel ? PA_CHANNEL_POSITION_MASK(p) : 0;
1181 }
1182 }
1183
1184 e->merged_mask = 0;
1185 for (p = PA_CHANNEL_POSITION_FRONT_LEFT; p < PA_CHANNEL_POSITION_MAX; p++)
1186 e->merged_mask |= e->masks[alsa_channel_ids[p]][e->n_channels-1];
1187 }
1188 }
1189 }
1190
1191 }
1192
1193 if (check_required(e, me) < 0)
1194 return -1;
1195
1196 if (e->switch_use == PA_ALSA_SWITCH_SELECT) {
1197 pa_alsa_option *o;
1198
1199 PA_LLIST_FOREACH(o, e->options)
1200 o->alsa_idx = pa_streq(o->alsa_name, "on") ? 1 : 0;
1201 } else if (e->enumeration_use == PA_ALSA_ENUMERATION_SELECT) {
1202 int n;
1203 pa_alsa_option *o;
1204
1205 if ((n = snd_mixer_selem_get_enum_items(me)) < 0) {
1206 pa_log("snd_mixer_selem_get_enum_items() failed: %s", pa_alsa_strerror(n));
1207 return -1;
1208 }
1209
1210 PA_LLIST_FOREACH(o, e->options) {
1211 int i;
1212
1213 for (i = 0; i < n; i++) {
1214 char buf[128];
1215
1216 if (snd_mixer_selem_get_enum_item_name(me, i, sizeof(buf), buf) < 0)
1217 continue;
1218
1219 if (!pa_streq(buf, o->alsa_name))
1220 continue;
1221
1222 o->alsa_idx = i;
1223 }
1224 }
1225 }
1226
1227 return 0;
1228 }
1229
1230 static pa_alsa_element* element_get(pa_alsa_path *p, const char *section, pa_bool_t prefixed) {
1231 pa_alsa_element *e;
1232
1233 pa_assert(p);
1234 pa_assert(section);
1235
1236 if (prefixed) {
1237 if (!pa_startswith(section, "Element "))
1238 return NULL;
1239
1240 section += 8;
1241 }
1242
1243 /* This is not an element section, but an enum section? */
1244 if (strchr(section, ':'))
1245 return NULL;
1246
1247 if (p->last_element && pa_streq(p->last_element->alsa_name, section))
1248 return p->last_element;
1249
1250 PA_LLIST_FOREACH(e, p->elements)
1251 if (pa_streq(e->alsa_name, section))
1252 goto finish;
1253
1254 e = pa_xnew0(pa_alsa_element, 1);
1255 e->path = p;
1256 e->alsa_name = pa_xstrdup(section);
1257 e->direction = p->direction;
1258
1259 PA_LLIST_INSERT_AFTER(pa_alsa_element, p->elements, p->last_element, e);
1260
1261 finish:
1262 p->last_element = e;
1263 return e;
1264 }
1265
1266 static pa_alsa_option* option_get(pa_alsa_path *p, const char *section) {
1267 char *en;
1268 const char *on;
1269 pa_alsa_option *o;
1270 pa_alsa_element *e;
1271
1272 if (!pa_startswith(section, "Option "))
1273 return NULL;
1274
1275 section += 7;
1276
1277 /* This is not an enum section, but an element section? */
1278 if (!(on = strchr(section, ':')))
1279 return NULL;
1280
1281 en = pa_xstrndup(section, on - section);
1282 on++;
1283
1284 if (p->last_option &&
1285 pa_streq(p->last_option->element->alsa_name, en) &&
1286 pa_streq(p->last_option->alsa_name, on)) {
1287 pa_xfree(en);
1288 return p->last_option;
1289 }
1290
1291 pa_assert_se(e = element_get(p, en, FALSE));
1292 pa_xfree(en);
1293
1294 PA_LLIST_FOREACH(o, e->options)
1295 if (pa_streq(o->alsa_name, on))
1296 goto finish;
1297
1298 o = pa_xnew0(pa_alsa_option, 1);
1299 o->element = e;
1300 o->alsa_name = pa_xstrdup(on);
1301 o->alsa_idx = -1;
1302
1303 if (p->last_option && p->last_option->element == e)
1304 PA_LLIST_INSERT_AFTER(pa_alsa_option, e->options, p->last_option, o);
1305 else
1306 PA_LLIST_PREPEND(pa_alsa_option, e->options, o);
1307
1308 finish:
1309 p->last_option = o;
1310 return o;
1311 }
1312
1313 static int element_parse_switch(
1314 const char *filename,
1315 unsigned line,
1316 const char *section,
1317 const char *lvalue,
1318 const char *rvalue,
1319 void *data,
1320 void *userdata) {
1321
1322 pa_alsa_path *p = userdata;
1323 pa_alsa_element *e;
1324
1325 pa_assert(p);
1326
1327 if (!(e = element_get(p, section, TRUE))) {
1328 pa_log("[%s:%u] Switch makes no sense in '%s'", filename, line, section);
1329 return -1;
1330 }
1331
1332 if (pa_streq(rvalue, "ignore"))
1333 e->switch_use = PA_ALSA_SWITCH_IGNORE;
1334 else if (pa_streq(rvalue, "mute"))
1335 e->switch_use = PA_ALSA_SWITCH_MUTE;
1336 else if (pa_streq(rvalue, "off"))
1337 e->switch_use = PA_ALSA_SWITCH_OFF;
1338 else if (pa_streq(rvalue, "on"))
1339 e->switch_use = PA_ALSA_SWITCH_ON;
1340 else if (pa_streq(rvalue, "select"))
1341 e->switch_use = PA_ALSA_SWITCH_SELECT;
1342 else {
1343 pa_log("[%s:%u] Switch invalid of '%s'", filename, line, section);
1344 return -1;
1345 }
1346
1347 return 0;
1348 }
1349
1350 static int element_parse_volume(
1351 const char *filename,
1352 unsigned line,
1353 const char *section,
1354 const char *lvalue,
1355 const char *rvalue,
1356 void *data,
1357 void *userdata) {
1358
1359 pa_alsa_path *p = userdata;
1360 pa_alsa_element *e;
1361
1362 pa_assert(p);
1363
1364 if (!(e = element_get(p, section, TRUE))) {
1365 pa_log("[%s:%u] Volume makes no sense in '%s'", filename, line, section);
1366 return -1;
1367 }
1368
1369 if (pa_streq(rvalue, "ignore"))
1370 e->volume_use = PA_ALSA_VOLUME_IGNORE;
1371 else if (pa_streq(rvalue, "merge"))
1372 e->volume_use = PA_ALSA_VOLUME_MERGE;
1373 else if (pa_streq(rvalue, "off"))
1374 e->volume_use = PA_ALSA_VOLUME_OFF;
1375 else if (pa_streq(rvalue, "zero"))
1376 e->volume_use = PA_ALSA_VOLUME_ZERO;
1377 else {
1378 pa_log("[%s:%u] Volume invalid of '%s'", filename, line, section);
1379 return -1;
1380 }
1381
1382 return 0;
1383 }
1384
1385 static int element_parse_enumeration(
1386 const char *filename,
1387 unsigned line,
1388 const char *section,
1389 const char *lvalue,
1390 const char *rvalue,
1391 void *data,
1392 void *userdata) {
1393
1394 pa_alsa_path *p = userdata;
1395 pa_alsa_element *e;
1396
1397 pa_assert(p);
1398
1399 if (!(e = element_get(p, section, TRUE))) {
1400 pa_log("[%s:%u] Enumeration makes no sense in '%s'", filename, line, section);
1401 return -1;
1402 }
1403
1404 if (pa_streq(rvalue, "ignore"))
1405 e->enumeration_use = PA_ALSA_ENUMERATION_IGNORE;
1406 else if (pa_streq(rvalue, "select"))
1407 e->enumeration_use = PA_ALSA_ENUMERATION_SELECT;
1408 else {
1409 pa_log("[%s:%u] Enumeration invalid of '%s'", filename, line, section);
1410 return -1;
1411 }
1412
1413 return 0;
1414 }
1415
1416 static int option_parse_priority(
1417 const char *filename,
1418 unsigned line,
1419 const char *section,
1420 const char *lvalue,
1421 const char *rvalue,
1422 void *data,
1423 void *userdata) {
1424
1425 pa_alsa_path *p = userdata;
1426 pa_alsa_option *o;
1427 uint32_t prio;
1428
1429 pa_assert(p);
1430
1431 if (!(o = option_get(p, section))) {
1432 pa_log("[%s:%u] Priority makes no sense in '%s'", filename, line, section);
1433 return -1;
1434 }
1435
1436 if (pa_atou(rvalue, &prio) < 0) {
1437 pa_log("[%s:%u] Priority invalid of '%s'", filename, line, section);
1438 return -1;
1439 }
1440
1441 o->priority = prio;
1442 return 0;
1443 }
1444
1445 static int option_parse_name(
1446 const char *filename,
1447 unsigned line,
1448 const char *section,
1449 const char *lvalue,
1450 const char *rvalue,
1451 void *data,
1452 void *userdata) {
1453
1454 pa_alsa_path *p = userdata;
1455 pa_alsa_option *o;
1456
1457 pa_assert(p);
1458
1459 if (!(o = option_get(p, section))) {
1460 pa_log("[%s:%u] Name makes no sense in '%s'", filename, line, section);
1461 return -1;
1462 }
1463
1464 pa_xfree(o->name);
1465 o->name = pa_xstrdup(rvalue);
1466
1467 return 0;
1468 }
1469
1470 static int element_parse_required(
1471 const char *filename,
1472 unsigned line,
1473 const char *section,
1474 const char *lvalue,
1475 const char *rvalue,
1476 void *data,
1477 void *userdata) {
1478
1479 pa_alsa_path *p = userdata;
1480 pa_alsa_element *e;
1481 pa_alsa_required_t req;
1482
1483 pa_assert(p);
1484
1485 if (!(e = element_get(p, section, TRUE))) {
1486 pa_log("[%s:%u] Required makes no sense in '%s'", filename, line, section);
1487 return -1;
1488 }
1489
1490 if (pa_streq(rvalue, "ignore"))
1491 req = PA_ALSA_REQUIRED_IGNORE;
1492 else if (pa_streq(rvalue, "switch"))
1493 req = PA_ALSA_REQUIRED_SWITCH;
1494 else if (pa_streq(rvalue, "volume"))
1495 req = PA_ALSA_REQUIRED_VOLUME;
1496 else if (pa_streq(rvalue, "enumeration"))
1497 req = PA_ALSA_REQUIRED_ENUMERATION;
1498 else if (pa_streq(rvalue, "any"))
1499 req = PA_ALSA_REQUIRED_ANY;
1500 else {
1501 pa_log("[%s:%u] Required invalid of '%s'", filename, line, section);
1502 return -1;
1503 }
1504
1505 if (pa_streq(lvalue, "required-absent"))
1506 e->required_absent = req;
1507 else
1508 e->required = req;
1509
1510 return 0;
1511 }
1512
1513 static int element_parse_direction(
1514 const char *filename,
1515 unsigned line,
1516 const char *section,
1517 const char *lvalue,
1518 const char *rvalue,
1519 void *data,
1520 void *userdata) {
1521
1522 pa_alsa_path *p = userdata;
1523 pa_alsa_element *e;
1524
1525 pa_assert(p);
1526
1527 if (!(e = element_get(p, section, TRUE))) {
1528 pa_log("[%s:%u] Direction makes no sense in '%s'", filename, line, section);
1529 return -1;
1530 }
1531
1532 if (pa_streq(rvalue, "playback"))
1533 e->direction = PA_ALSA_DIRECTION_OUTPUT;
1534 else if (pa_streq(rvalue, "capture"))
1535 e->direction = PA_ALSA_DIRECTION_INPUT;
1536 else {
1537 pa_log("[%s:%u] Direction invalid of '%s'", filename, line, section);
1538 return -1;
1539 }
1540
1541 return 0;
1542 }
1543
1544 static int element_parse_direction_try_other(
1545 const char *filename,
1546 unsigned line,
1547 const char *section,
1548 const char *lvalue,
1549 const char *rvalue,
1550 void *data,
1551 void *userdata) {
1552
1553 pa_alsa_path *p = userdata;
1554 pa_alsa_element *e;
1555 int yes;
1556
1557 if (!(e = element_get(p, section, TRUE))) {
1558 pa_log("[%s:%u] Direction makes no sense in '%s'", filename, line, section);
1559 return -1;
1560 }
1561
1562 if ((yes = pa_parse_boolean(rvalue)) < 0) {
1563 pa_log("[%s:%u] Direction invalid of '%s'", filename, line, section);
1564 return -1;
1565 }
1566
1567 e->direction_try_other = !!yes;
1568 return 0;
1569 }
1570
1571 static pa_channel_position_mask_t parse_mask(const char *m) {
1572 pa_channel_position_mask_t v;
1573
1574 if (pa_streq(m, "all-left"))
1575 v = PA_CHANNEL_POSITION_MASK_LEFT;
1576 else if (pa_streq(m, "all-right"))
1577 v = PA_CHANNEL_POSITION_MASK_RIGHT;
1578 else if (pa_streq(m, "all-center"))
1579 v = PA_CHANNEL_POSITION_MASK_CENTER;
1580 else if (pa_streq(m, "all-front"))
1581 v = PA_CHANNEL_POSITION_MASK_FRONT;
1582 else if (pa_streq(m, "all-rear"))
1583 v = PA_CHANNEL_POSITION_MASK_REAR;
1584 else if (pa_streq(m, "all-side"))
1585 v = PA_CHANNEL_POSITION_MASK_SIDE_OR_TOP_CENTER;
1586 else if (pa_streq(m, "all-top"))
1587 v = PA_CHANNEL_POSITION_MASK_TOP;
1588 else if (pa_streq(m, "all-no-lfe"))
1589 v = PA_CHANNEL_POSITION_MASK_ALL ^ PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_LFE);
1590 else if (pa_streq(m, "all"))
1591 v = PA_CHANNEL_POSITION_MASK_ALL;
1592 else {
1593 pa_channel_position_t p;
1594
1595 if ((p = pa_channel_position_from_string(m)) == PA_CHANNEL_POSITION_INVALID)
1596 return 0;
1597
1598 v = PA_CHANNEL_POSITION_MASK(p);
1599 }
1600
1601 return v;
1602 }
1603
1604 static int element_parse_override_map(
1605 const char *filename,
1606 unsigned line,
1607 const char *section,
1608 const char *lvalue,
1609 const char *rvalue,
1610 void *data,
1611 void *userdata) {
1612
1613 pa_alsa_path *p = userdata;
1614 pa_alsa_element *e;
1615 const char *state = NULL;
1616 unsigned i = 0;
1617 char *n;
1618
1619 if (!(e = element_get(p, section, TRUE))) {
1620 pa_log("[%s:%u] Override map makes no sense in '%s'", filename, line, section);
1621 return -1;
1622 }
1623
1624 while ((n = pa_split(rvalue, ",", &state))) {
1625 pa_channel_position_mask_t m;
1626
1627 if (!*n)
1628 m = 0;
1629 else {
1630 if ((m = parse_mask(n)) == 0) {
1631 pa_log("[%s:%u] Override map '%s' invalid in '%s'", filename, line, n, section);
1632 pa_xfree(n);
1633 return -1;
1634 }
1635 }
1636
1637 if (pa_streq(lvalue, "override-map.1"))
1638 e->masks[i++][0] = m;
1639 else
1640 e->masks[i++][1] = m;
1641
1642 /* Later on we might add override-map.3 and so on here ... */
1643
1644 pa_xfree(n);
1645 }
1646
1647 e->override_map = TRUE;
1648
1649 return 0;
1650 }
1651
1652 static int element_set_option(pa_alsa_element *e, snd_mixer_t *m, int alsa_idx) {
1653 snd_mixer_selem_id_t *sid;
1654 snd_mixer_elem_t *me;
1655 int r;
1656
1657 pa_assert(e);
1658 pa_assert(m);
1659
1660 SELEM_INIT(sid, e->alsa_name);
1661 if (!(me = snd_mixer_find_selem(m, sid))) {
1662 pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
1663 return -1;
1664 }
1665
1666 if (e->switch_use == PA_ALSA_SWITCH_SELECT) {
1667
1668 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1669 r = snd_mixer_selem_set_playback_switch_all(me, alsa_idx);
1670 else
1671 r = snd_mixer_selem_set_capture_switch_all(me, alsa_idx);
1672
1673 if (r < 0)
1674 pa_log_warn("Faile to set switch of %s: %s", e->alsa_name, pa_alsa_strerror(errno));
1675
1676 } else {
1677 pa_assert(e->enumeration_use == PA_ALSA_ENUMERATION_SELECT);
1678
1679 if ((r = snd_mixer_selem_set_enum_item(me, 0, alsa_idx)) < 0)
1680 pa_log_warn("Faile to set enumeration of %s: %s", e->alsa_name, pa_alsa_strerror(errno));
1681 }
1682
1683 return r;
1684 }
1685
1686 int pa_alsa_setting_select(pa_alsa_setting *s, snd_mixer_t *m) {
1687 pa_alsa_option *o;
1688 uint32_t idx;
1689
1690 pa_assert(s);
1691 pa_assert(m);
1692
1693 PA_IDXSET_FOREACH(o, s->options, idx)
1694 element_set_option(o->element, m, o->alsa_idx);
1695
1696 return 0;
1697 }
1698
1699 static int option_verify(pa_alsa_option *o) {
1700 static const struct description_map well_known_descriptions[] = {
1701 { "input", N_("Input") },
1702 { "input-docking", N_("Docking Station Input") },
1703 { "input-docking-microphone", N_("Docking Station Microphone") },
1704 { "input-linein", N_("Line-In") },
1705 { "input-microphone", N_("Microphone") },
1706 { "input-microphone-external", N_("External Microphone") },
1707 { "input-microphone-internal", N_("Internal Microphone") },
1708 { "input-radio", N_("Radio") },
1709 { "input-video", N_("Video") },
1710 { "input-agc-on", N_("Automatic Gain Control") },
1711 { "input-agc-off", N_("No Automatic Gain Control") },
1712 { "input-boost-on", N_("Boost") },
1713 { "input-boost-off", N_("No Boost") },
1714 { "output-amplifier-on", N_("Amplifier") },
1715 { "output-amplifier-off", N_("No Amplifier") },
1716 { "output-speaker", N_("Speaker") },
1717 { "output-headphones", N_("Headphones") }
1718 };
1719
1720 pa_assert(o);
1721
1722 if (!o->name) {
1723 pa_log("No name set for option %s", o->alsa_name);
1724 return -1;
1725 }
1726
1727 if (o->element->enumeration_use != PA_ALSA_ENUMERATION_SELECT &&
1728 o->element->switch_use != PA_ALSA_SWITCH_SELECT) {
1729 pa_log("Element %s of option %s not set for select.", o->element->alsa_name, o->name);
1730 return -1;
1731 }
1732
1733 if (o->element->switch_use == PA_ALSA_SWITCH_SELECT &&
1734 !pa_streq(o->alsa_name, "on") &&
1735 !pa_streq(o->alsa_name, "off")) {
1736 pa_log("Switch %s options need be named off or on ", o->element->alsa_name);
1737 return -1;
1738 }
1739
1740 if (!o->description)
1741 o->description = pa_xstrdup(lookup_description(o->name,
1742 well_known_descriptions,
1743 PA_ELEMENTSOF(well_known_descriptions)));
1744 if (!o->description)
1745 o->description = pa_xstrdup(o->name);
1746
1747 return 0;
1748 }
1749
1750 static int element_verify(pa_alsa_element *e) {
1751 pa_alsa_option *o;
1752
1753 pa_assert(e);
1754
1755 if ((e->required != PA_ALSA_REQUIRED_IGNORE && e->required == e->required_absent) ||
1756 (e->required_absent == PA_ALSA_REQUIRED_ANY && e->required != PA_ALSA_REQUIRED_IGNORE)) {
1757 pa_log("Element %s cannot be required and absent at the same time.", e->alsa_name);
1758 return -1;
1759 }
1760
1761 if (e->switch_use == PA_ALSA_SWITCH_SELECT && e->enumeration_use == PA_ALSA_ENUMERATION_SELECT) {
1762 pa_log("Element %s cannot set select for both switch and enumeration.", e->alsa_name);
1763 return -1;
1764 }
1765
1766 PA_LLIST_FOREACH(o, e->options)
1767 if (option_verify(o) < 0)
1768 return -1;
1769
1770 return 0;
1771 }
1772
1773 static int path_verify(pa_alsa_path *p) {
1774 static const struct description_map well_known_descriptions[] = {
1775 { "analog-input", N_("Analog Input") },
1776 { "analog-input-microphone", N_("Analog Microphone") },
1777 { "analog-input-linein", N_("Analog Line-In") },
1778 { "analog-input-radio", N_("Analog Radio") },
1779 { "analog-input-video", N_("Analog Video") },
1780 { "analog-output", N_("Analog Output") },
1781 { "analog-output-headphones", N_("Analog Headphones") },
1782 { "analog-output-lfe-on-mono", N_("Analog Output (LFE)") },
1783 { "analog-output-mono", N_("Analog Mono Output") },
1784 { "analog-output-headphones-2", N_("Analog Headphones 2") },
1785 { "analog-output-speaker", N_("Analog Speaker") }
1786 };
1787
1788 pa_alsa_element *e;
1789
1790 pa_assert(p);
1791
1792 PA_LLIST_FOREACH(e, p->elements)
1793 if (element_verify(e) < 0)
1794 return -1;
1795
1796 if (!p->description)
1797 p->description = pa_xstrdup(lookup_description(p->name,
1798 well_known_descriptions,
1799 PA_ELEMENTSOF(well_known_descriptions)));
1800
1801 if (!p->description)
1802 p->description = pa_xstrdup(p->name);
1803
1804 return 0;
1805 }
1806
1807 pa_alsa_path* pa_alsa_path_new(const char *fname, pa_alsa_direction_t direction) {
1808 pa_alsa_path *p;
1809 char *fn;
1810 int r;
1811 const char *n;
1812
1813 pa_config_item items[] = {
1814 /* [General] */
1815 { "priority", pa_config_parse_unsigned, NULL, "General" },
1816 { "description", pa_config_parse_string, NULL, "General" },
1817 { "name", pa_config_parse_string, NULL, "General" },
1818
1819 /* [Option ...] */
1820 { "priority", option_parse_priority, NULL, NULL },
1821 { "name", option_parse_name, NULL, NULL },
1822
1823 /* [Element ...] */
1824 { "switch", element_parse_switch, NULL, NULL },
1825 { "volume", element_parse_volume, NULL, NULL },
1826 { "enumeration", element_parse_enumeration, NULL, NULL },
1827 { "override-map.1", element_parse_override_map, NULL, NULL },
1828 { "override-map.2", element_parse_override_map, NULL, NULL },
1829 /* ... later on we might add override-map.3 and so on here ... */
1830 { "required", element_parse_required, NULL, NULL },
1831 { "required-absent", element_parse_required, NULL, NULL },
1832 { "direction", element_parse_direction, NULL, NULL },
1833 { "direction-try-other", element_parse_direction_try_other, NULL, NULL },
1834 { NULL, NULL, NULL, NULL }
1835 };
1836
1837 pa_assert(fname);
1838
1839 p = pa_xnew0(pa_alsa_path, 1);
1840 n = pa_path_get_filename(fname);
1841 p->name = pa_xstrndup(n, strcspn(n, "."));
1842 p->direction = direction;
1843
1844 items[0].data = &p->priority;
1845 items[1].data = &p->description;
1846 items[2].data = &p->name;
1847
1848 fn = pa_maybe_prefix_path(fname,
1849 #if defined(__linux__) && !defined(__OPTIMIZE__)
1850 pa_run_from_build_tree() ? PA_BUILDDIR "/modules/alsa/mixer/paths/" :
1851 #endif
1852 PA_ALSA_PATHS_DIR);
1853
1854 r = pa_config_parse(fn, NULL, items, p);
1855 pa_xfree(fn);
1856
1857 if (r < 0)
1858 goto fail;
1859
1860 if (path_verify(p) < 0)
1861 goto fail;
1862
1863 return p;
1864
1865 fail:
1866 pa_alsa_path_free(p);
1867 return NULL;
1868 }
1869
1870 pa_alsa_path* pa_alsa_path_synthesize(const char*element, pa_alsa_direction_t direction) {
1871 pa_alsa_path *p;
1872 pa_alsa_element *e;
1873
1874 pa_assert(element);
1875
1876 p = pa_xnew0(pa_alsa_path, 1);
1877 p->name = pa_xstrdup(element);
1878 p->direction = direction;
1879
1880 e = pa_xnew0(pa_alsa_element, 1);
1881 e->path = p;
1882 e->alsa_name = pa_xstrdup(element);
1883 e->direction = direction;
1884
1885 e->switch_use = PA_ALSA_SWITCH_MUTE;
1886 e->volume_use = PA_ALSA_VOLUME_MERGE;
1887
1888 PA_LLIST_PREPEND(pa_alsa_element, p->elements, e);
1889 return p;
1890 }
1891
1892 static pa_bool_t element_drop_unsupported(pa_alsa_element *e) {
1893 pa_alsa_option *o, *n;
1894
1895 pa_assert(e);
1896
1897 for (o = e->options; o; o = n) {
1898 n = o->next;
1899
1900 if (o->alsa_idx < 0) {
1901 PA_LLIST_REMOVE(pa_alsa_option, e->options, o);
1902 option_free(o);
1903 }
1904 }
1905
1906 return
1907 e->switch_use != PA_ALSA_SWITCH_IGNORE ||
1908 e->volume_use != PA_ALSA_VOLUME_IGNORE ||
1909 e->enumeration_use != PA_ALSA_ENUMERATION_IGNORE;
1910 }
1911
1912 static void path_drop_unsupported(pa_alsa_path *p) {
1913 pa_alsa_element *e, *n;
1914
1915 pa_assert(p);
1916
1917 for (e = p->elements; e; e = n) {
1918 n = e->next;
1919
1920 if (!element_drop_unsupported(e)) {
1921 PA_LLIST_REMOVE(pa_alsa_element, p->elements, e);
1922 element_free(e);
1923 }
1924 }
1925 }
1926
1927 static void path_make_options_unique(pa_alsa_path *p) {
1928 pa_alsa_element *e;
1929 pa_alsa_option *o, *u;
1930
1931 PA_LLIST_FOREACH(e, p->elements) {
1932 PA_LLIST_FOREACH(o, e->options) {
1933 unsigned i;
1934 char *m;
1935
1936 for (u = o->next; u; u = u->next)
1937 if (pa_streq(u->name, o->name))
1938 break;
1939
1940 if (!u)
1941 continue;
1942
1943 m = pa_xstrdup(o->name);
1944
1945 /* OK, this name is not unique, hence let's rename */
1946 for (i = 1, u = o; u; u = u->next) {
1947 char *nn, *nd;
1948
1949 if (!pa_streq(u->name, m))
1950 continue;
1951
1952 nn = pa_sprintf_malloc("%s-%u", m, i);
1953 pa_xfree(u->name);
1954 u->name = nn;
1955
1956 nd = pa_sprintf_malloc("%s %u", u->description, i);
1957 pa_xfree(u->description);
1958 u->description = nd;
1959
1960 i++;
1961 }
1962
1963 pa_xfree(m);
1964 }
1965 }
1966 }
1967
1968 static pa_bool_t element_create_settings(pa_alsa_element *e, pa_alsa_setting *template) {
1969 pa_alsa_option *o;
1970
1971 for (; e; e = e->next)
1972 if (e->switch_use == PA_ALSA_SWITCH_SELECT ||
1973 e->enumeration_use == PA_ALSA_ENUMERATION_SELECT)
1974 break;
1975
1976 if (!e)
1977 return FALSE;
1978
1979 for (o = e->options; o; o = o->next) {
1980 pa_alsa_setting *s;
1981
1982 if (template) {
1983 s = pa_xnewdup(pa_alsa_setting, template, 1);
1984 s->options = pa_idxset_copy(template->options);
1985 s->name = pa_sprintf_malloc(_("%s+%s"), template->name, o->name);
1986 s->description =
1987 (template->description[0] && o->description[0])
1988 ? pa_sprintf_malloc(_("%s / %s"), template->description, o->description)
1989 : (template->description[0]
1990 ? pa_xstrdup(template->description)
1991 : pa_xstrdup(o->description));
1992
1993 s->priority = PA_MAX(template->priority, o->priority);
1994 } else {
1995 s = pa_xnew0(pa_alsa_setting, 1);
1996 s->options = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
1997 s->name = pa_xstrdup(o->name);
1998 s->description = pa_xstrdup(o->description);
1999 s->priority = o->priority;
2000 }
2001
2002 pa_idxset_put(s->options, o, NULL);
2003
2004 if (element_create_settings(e->next, s))
2005 /* This is not a leaf, so let's get rid of it */
2006 setting_free(s);
2007 else {
2008 /* This is a leaf, so let's add it */
2009 PA_LLIST_INSERT_AFTER(pa_alsa_setting, e->path->settings, e->path->last_setting, s);
2010
2011 e->path->last_setting = s;
2012 }
2013 }
2014
2015 return TRUE;
2016 }
2017
2018 static void path_create_settings(pa_alsa_path *p) {
2019 pa_assert(p);
2020
2021 element_create_settings(p->elements, NULL);
2022 }
2023
2024 int pa_alsa_path_probe(pa_alsa_path *p, snd_mixer_t *m, pa_bool_t ignore_dB) {
2025 pa_alsa_element *e;
2026 double min_dB[PA_CHANNEL_POSITION_MAX], max_dB[PA_CHANNEL_POSITION_MAX];
2027 pa_channel_position_t t;
2028
2029 pa_assert(p);
2030 pa_assert(m);
2031
2032 if (p->probed)
2033 return 0;
2034
2035 pa_zero(min_dB);
2036 pa_zero(max_dB);
2037
2038 pa_log_debug("Probing path '%s'", p->name);
2039
2040 PA_LLIST_FOREACH(e, p->elements) {
2041 if (element_probe(e, m) < 0) {
2042 p->supported = FALSE;
2043 pa_log_debug("Probe of element '%s' failed.", e->alsa_name);
2044 return -1;
2045 }
2046
2047 if (ignore_dB)
2048 e->has_dB = FALSE;
2049
2050 if (e->volume_use == PA_ALSA_VOLUME_MERGE) {
2051
2052 if (!p->has_volume) {
2053 p->min_volume = e->min_volume;
2054 p->max_volume = e->max_volume;
2055 }
2056
2057 if (e->has_dB) {
2058 if (!p->has_volume) {
2059 for (t = 0; t < PA_CHANNEL_POSITION_MAX; t++)
2060 if (PA_CHANNEL_POSITION_MASK(t) & e->merged_mask) {
2061 min_dB[t] = e->min_dB;
2062 max_dB[t] = e->max_dB;
2063 }
2064
2065 p->has_dB = TRUE;
2066 } else {
2067
2068 if (p->has_dB) {
2069 for (t = 0; t < PA_CHANNEL_POSITION_MAX; t++)
2070 if (PA_CHANNEL_POSITION_MASK(t) & e->merged_mask) {
2071 min_dB[t] += e->min_dB;
2072 max_dB[t] += e->max_dB;
2073 }
2074 } else
2075 /* Hmm, there's another element before us
2076 * which cannot do dB volumes, so we we need
2077 * to 'neutralize' this slider */
2078 e->volume_use = PA_ALSA_VOLUME_ZERO;
2079 }
2080 } else if (p->has_volume)
2081 /* We can't use this volume, so let's ignore it */
2082 e->volume_use = PA_ALSA_VOLUME_IGNORE;
2083
2084 p->has_volume = TRUE;
2085 }
2086
2087 if (e->switch_use == PA_ALSA_SWITCH_MUTE)
2088 p->has_mute = TRUE;
2089 }
2090
2091 path_drop_unsupported(p);
2092 path_make_options_unique(p);
2093 path_create_settings(p);
2094
2095 p->supported = TRUE;
2096 p->probed = TRUE;
2097
2098 p->min_dB = INFINITY;
2099 p->max_dB = -INFINITY;
2100
2101 for (t = 0; t < PA_CHANNEL_POSITION_MAX; t++) {
2102 if (p->min_dB > min_dB[t])
2103 p->min_dB = min_dB[t];
2104
2105 if (p->max_dB < max_dB[t])
2106 p->max_dB = max_dB[t];
2107 }
2108
2109 return 0;
2110 }
2111
2112 void pa_alsa_setting_dump(pa_alsa_setting *s) {
2113 pa_assert(s);
2114
2115 pa_log_debug("Setting %s (%s) priority=%u",
2116 s->name,
2117 pa_strnull(s->description),
2118 s->priority);
2119 }
2120
2121 void pa_alsa_option_dump(pa_alsa_option *o) {
2122 pa_assert(o);
2123
2124 pa_log_debug("Option %s (%s/%s) index=%i, priority=%u",
2125 o->alsa_name,
2126 pa_strnull(o->name),
2127 pa_strnull(o->description),
2128 o->alsa_idx,
2129 o->priority);
2130 }
2131
2132 void pa_alsa_element_dump(pa_alsa_element *e) {
2133 pa_alsa_option *o;
2134 pa_assert(e);
2135
2136 pa_log_debug("Element %s, direction=%i, switch=%i, volume=%i, enumeration=%i, required=%i, required_absent=%i, mask=0x%llx, n_channels=%u, override_map=%s",
2137 e->alsa_name,
2138 e->direction,
2139 e->switch_use,
2140 e->volume_use,
2141 e->enumeration_use,
2142 e->required,
2143 e->required_absent,
2144 (long long unsigned) e->merged_mask,
2145 e->n_channels,
2146 pa_yes_no(e->override_map));
2147
2148 PA_LLIST_FOREACH(o, e->options)
2149 pa_alsa_option_dump(o);
2150 }
2151
2152 void pa_alsa_path_dump(pa_alsa_path *p) {
2153 pa_alsa_element *e;
2154 pa_alsa_setting *s;
2155 pa_assert(p);
2156
2157 pa_log_debug("Path %s (%s), direction=%i, priority=%u, probed=%s, supported=%s, has_mute=%s, has_volume=%s, "
2158 "has_dB=%s, min_volume=%li, max_volume=%li, min_dB=%g, max_dB=%g",
2159 p->name,
2160 pa_strnull(p->description),
2161 p->direction,
2162 p->priority,
2163 pa_yes_no(p->probed),
2164 pa_yes_no(p->supported),
2165 pa_yes_no(p->has_mute),
2166 pa_yes_no(p->has_volume),
2167 pa_yes_no(p->has_dB),
2168 p->min_volume, p->max_volume,
2169 p->min_dB, p->max_dB);
2170
2171 PA_LLIST_FOREACH(e, p->elements)
2172 pa_alsa_element_dump(e);
2173
2174 PA_LLIST_FOREACH(s, p->settings)
2175 pa_alsa_setting_dump(s);
2176 }
2177
2178 static void element_set_callback(pa_alsa_element *e, snd_mixer_t *m, snd_mixer_elem_callback_t cb, void *userdata) {
2179 snd_mixer_selem_id_t *sid;
2180 snd_mixer_elem_t *me;
2181
2182 pa_assert(e);
2183 pa_assert(m);
2184 pa_assert(cb);
2185
2186 SELEM_INIT(sid, e->alsa_name);
2187 if (!(me = snd_mixer_find_selem(m, sid))) {
2188 pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
2189 return;
2190 }
2191
2192 snd_mixer_elem_set_callback(me, cb);
2193 snd_mixer_elem_set_callback_private(me, userdata);
2194 }
2195
2196 void pa_alsa_path_set_callback(pa_alsa_path *p, snd_mixer_t *m, snd_mixer_elem_callback_t cb, void *userdata) {
2197 pa_alsa_element *e;
2198
2199 pa_assert(p);
2200 pa_assert(m);
2201 pa_assert(cb);
2202
2203 PA_LLIST_FOREACH(e, p->elements)
2204 element_set_callback(e, m, cb, userdata);
2205 }
2206
2207 void pa_alsa_path_set_set_callback(pa_alsa_path_set *ps, snd_mixer_t *m, snd_mixer_elem_callback_t cb, void *userdata) {
2208 pa_alsa_path *p;
2209
2210 pa_assert(ps);
2211 pa_assert(m);
2212 pa_assert(cb);
2213
2214 PA_LLIST_FOREACH(p, ps->paths)
2215 pa_alsa_path_set_callback(p, m, cb, userdata);
2216 }
2217
2218 pa_alsa_path_set *pa_alsa_path_set_new(pa_alsa_mapping *m, pa_alsa_direction_t direction) {
2219 pa_alsa_path_set *ps;
2220 char **pn = NULL, **en = NULL, **ie;
2221
2222 pa_assert(m);
2223 pa_assert(direction == PA_ALSA_DIRECTION_OUTPUT || direction == PA_ALSA_DIRECTION_INPUT);
2224
2225 if (m->direction != PA_ALSA_DIRECTION_ANY && m->direction != direction)
2226 return NULL;
2227
2228 ps = pa_xnew0(pa_alsa_path_set, 1);
2229 ps->direction = direction;
2230
2231 if (direction == PA_ALSA_DIRECTION_OUTPUT)
2232 pn = m->output_path_names;
2233 else if (direction == PA_ALSA_DIRECTION_INPUT)
2234 pn = m->input_path_names;
2235
2236 if (pn) {
2237 char **in;
2238
2239 for (in = pn; *in; in++) {
2240 pa_alsa_path *p;
2241 pa_bool_t duplicate = FALSE;
2242 char **kn, *fn;
2243
2244 for (kn = pn; kn != in; kn++)
2245 if (pa_streq(*kn, *in)) {
2246 duplicate = TRUE;
2247 break;
2248 }
2249
2250 if (duplicate)
2251 continue;
2252
2253 fn = pa_sprintf_malloc("%s.conf", *in);
2254
2255 if ((p = pa_alsa_path_new(fn, direction))) {
2256 p->path_set = ps;
2257 PA_LLIST_INSERT_AFTER(pa_alsa_path, ps->paths, ps->last_path, p);
2258 ps->last_path = p;
2259 }
2260
2261 pa_xfree(fn);
2262 }
2263
2264 return ps;
2265 }
2266
2267 if (direction == PA_ALSA_DIRECTION_OUTPUT)
2268 en = m->output_element;
2269 else if (direction == PA_ALSA_DIRECTION_INPUT)
2270 en = m->input_element;
2271
2272 if (!en) {
2273 pa_alsa_path_set_free(ps);
2274 return NULL;
2275 }
2276
2277 for (ie = en; *ie; ie++) {
2278 char **je;
2279 pa_alsa_path *p;
2280
2281 p = pa_alsa_path_synthesize(*ie, direction);
2282 p->path_set = ps;
2283
2284 /* Mark all other passed elements for require-absent */
2285 for (je = en; *je; je++) {
2286 pa_alsa_element *e;
2287 e = pa_xnew0(pa_alsa_element, 1);
2288 e->path = p;
2289 e->alsa_name = pa_xstrdup(*je);
2290 e->direction = direction;
2291 e->required_absent = PA_ALSA_REQUIRED_ANY;
2292
2293 PA_LLIST_INSERT_AFTER(pa_alsa_element, p->elements, p->last_element, e);
2294 p->last_element = e;
2295 }
2296
2297 PA_LLIST_INSERT_AFTER(pa_alsa_path, ps->paths, ps->last_path, p);
2298 ps->last_path = p;
2299 }
2300
2301 return ps;
2302 }
2303
2304 void pa_alsa_path_set_dump(pa_alsa_path_set *ps) {
2305 pa_alsa_path *p;
2306 pa_assert(ps);
2307
2308 pa_log_debug("Path Set %p, direction=%i, probed=%s",
2309 (void*) ps,
2310 ps->direction,
2311 pa_yes_no(ps->probed));
2312
2313 PA_LLIST_FOREACH(p, ps->paths)
2314 pa_alsa_path_dump(p);
2315 }
2316
2317 static void path_set_unify(pa_alsa_path_set *ps) {
2318 pa_alsa_path *p;
2319 pa_bool_t has_dB = TRUE, has_volume = TRUE, has_mute = TRUE;
2320 pa_assert(ps);
2321
2322 /* We have issues dealing with paths that vary too wildly. That
2323 * means for now we have to have all paths support volume/mute/dB
2324 * or none. */
2325
2326 PA_LLIST_FOREACH(p, ps->paths) {
2327 pa_assert(p->probed);
2328
2329 if (!p->has_volume)
2330 has_volume = FALSE;
2331 else if (!p->has_dB)
2332 has_dB = FALSE;
2333
2334 if (!p->has_mute)
2335 has_mute = FALSE;
2336 }
2337
2338 if (!has_volume || !has_dB || !has_mute) {
2339
2340 if (!has_volume)
2341 pa_log_debug("Some paths of the device lack hardware volume control, disabling hardware control altogether.");
2342 else if (!has_dB)
2343 pa_log_debug("Some paths of the device lack dB information, disabling dB logic altogether.");
2344
2345 if (!has_mute)
2346 pa_log_debug("Some paths of the device lack hardware mute control, disabling hardware control altogether.");
2347
2348 PA_LLIST_FOREACH(p, ps->paths) {
2349 if (!has_volume)
2350 p->has_volume = FALSE;
2351 else if (!has_dB)
2352 p->has_dB = FALSE;
2353
2354 if (!has_mute)
2355 p->has_mute = FALSE;
2356 }
2357 }
2358 }
2359
2360 static void path_set_make_paths_unique(pa_alsa_path_set *ps) {
2361 pa_alsa_path *p, *q;
2362
2363 PA_LLIST_FOREACH(p, ps->paths) {
2364 unsigned i;
2365 char *m;
2366
2367 for (q = p->next; q; q = q->next)
2368 if (pa_streq(q->name, p->name))
2369 break;
2370
2371 if (!q)
2372 continue;
2373
2374 m = pa_xstrdup(p->name);
2375
2376 /* OK, this name is not unique, hence let's rename */
2377 for (i = 1, q = p; q; q = q->next) {
2378 char *nn, *nd;
2379
2380 if (!pa_streq(q->name, m))
2381 continue;
2382
2383 nn = pa_sprintf_malloc("%s-%u", m, i);
2384 pa_xfree(q->name);
2385 q->name = nn;
2386
2387 nd = pa_sprintf_malloc("%s %u", q->description, i);
2388 pa_xfree(q->description);
2389 q->description = nd;
2390
2391 i++;
2392 }
2393
2394 pa_xfree(m);
2395 }
2396 }
2397
2398 void pa_alsa_path_set_probe(pa_alsa_path_set *ps, snd_mixer_t *m, pa_bool_t ignore_dB) {
2399 pa_alsa_path *p, *n;
2400
2401 pa_assert(ps);
2402
2403 if (ps->probed)
2404 return;
2405
2406 for (p = ps->paths; p; p = n) {
2407 n = p->next;
2408
2409 if (pa_alsa_path_probe(p, m, ignore_dB) < 0) {
2410 PA_LLIST_REMOVE(pa_alsa_path, ps->paths, p);
2411 pa_alsa_path_free(p);
2412 }
2413 }
2414
2415 path_set_unify(ps);
2416 path_set_make_paths_unique(ps);
2417 ps->probed = TRUE;
2418 }
2419
2420 static void mapping_free(pa_alsa_mapping *m) {
2421 pa_assert(m);
2422
2423 pa_xfree(m->name);
2424 pa_xfree(m->description);
2425
2426 pa_xstrfreev(m->device_strings);
2427 pa_xstrfreev(m->input_path_names);
2428 pa_xstrfreev(m->output_path_names);
2429 pa_xstrfreev(m->input_element);
2430 pa_xstrfreev(m->output_element);
2431
2432 pa_assert(!m->input_pcm);
2433 pa_assert(!m->output_pcm);
2434
2435 pa_xfree(m);
2436 }
2437
2438 static void profile_free(pa_alsa_profile *p) {
2439 pa_assert(p);
2440
2441 pa_xfree(p->name);
2442 pa_xfree(p->description);
2443
2444 pa_xstrfreev(p->input_mapping_names);
2445 pa_xstrfreev(p->output_mapping_names);
2446
2447 if (p->input_mappings)
2448 pa_idxset_free(p->input_mappings, NULL, NULL);
2449
2450 if (p->output_mappings)
2451 pa_idxset_free(p->output_mappings, NULL, NULL);
2452
2453 pa_xfree(p);
2454 }
2455
2456 void pa_alsa_profile_set_free(pa_alsa_profile_set *ps) {
2457 pa_assert(ps);
2458
2459 if (ps->profiles) {
2460 pa_alsa_profile *p;
2461
2462 while ((p = pa_hashmap_steal_first(ps->profiles)))
2463 profile_free(p);
2464
2465 pa_hashmap_free(ps->profiles, NULL, NULL);
2466 }
2467
2468 if (ps->mappings) {
2469 pa_alsa_mapping *m;
2470
2471 while ((m = pa_hashmap_steal_first(ps->mappings)))
2472 mapping_free(m);
2473
2474 pa_hashmap_free(ps->mappings, NULL, NULL);
2475 }
2476
2477 pa_xfree(ps);
2478 }
2479
2480 static pa_alsa_mapping *mapping_get(pa_alsa_profile_set *ps, const char *name) {
2481 pa_alsa_mapping *m;
2482
2483 if (!pa_startswith(name, "Mapping "))
2484 return NULL;
2485
2486 name += 8;
2487
2488 if ((m = pa_hashmap_get(ps->mappings, name)))
2489 return m;
2490
2491 m = pa_xnew0(pa_alsa_mapping, 1);
2492 m->profile_set = ps;
2493 m->name = pa_xstrdup(name);
2494 pa_channel_map_init(&m->channel_map);
2495
2496 pa_hashmap_put(ps->mappings, m->name, m);
2497
2498 return m;
2499 }
2500
2501 static pa_alsa_profile *profile_get(pa_alsa_profile_set *ps, const char *name) {
2502 pa_alsa_profile *p;
2503
2504 if (!pa_startswith(name, "Profile "))
2505 return NULL;
2506
2507 name += 8;
2508
2509 if ((p = pa_hashmap_get(ps->profiles, name)))
2510 return p;
2511
2512 p = pa_xnew0(pa_alsa_profile, 1);
2513 p->profile_set = ps;
2514 p->name = pa_xstrdup(name);
2515
2516 pa_hashmap_put(ps->profiles, p->name, p);
2517
2518 return p;
2519 }
2520
2521 static int mapping_parse_device_strings(
2522 const char *filename,
2523 unsigned line,
2524 const char *section,
2525 const char *lvalue,
2526 const char *rvalue,
2527 void *data,
2528 void *userdata) {
2529
2530 pa_alsa_profile_set *ps = userdata;
2531 pa_alsa_mapping *m;
2532
2533 pa_assert(ps);
2534
2535 if (!(m = mapping_get(ps, section))) {
2536 pa_log("[%s:%u] %s invalid in section %s", filename, line, lvalue, section);
2537 return -1;
2538 }
2539
2540 pa_xstrfreev(m->device_strings);
2541 if (!(m->device_strings = pa_split_spaces_strv(rvalue))) {
2542 pa_log("[%s:%u] Device string list empty of '%s'", filename, line, section);
2543 return -1;
2544 }
2545
2546 return 0;
2547 }
2548
2549 static int mapping_parse_channel_map(
2550 const char *filename,
2551 unsigned line,
2552 const char *section,
2553 const char *lvalue,
2554 const char *rvalue,
2555 void *data,
2556 void *userdata) {
2557
2558 pa_alsa_profile_set *ps = userdata;
2559 pa_alsa_mapping *m;
2560
2561 pa_assert(ps);
2562
2563 if (!(m = mapping_get(ps, section))) {
2564 pa_log("[%s:%u] %s invalid in section %s", filename, line, lvalue, section);
2565 return -1;
2566 }
2567
2568 if (!(pa_channel_map_parse(&m->channel_map, rvalue))) {
2569 pa_log("[%s:%u] Channel map invalid of '%s'", filename, line, section);
2570 return -1;
2571 }
2572
2573 return 0;
2574 }
2575
2576 static int mapping_parse_paths(
2577 const char *filename,
2578 unsigned line,
2579 const char *section,
2580 const char *lvalue,
2581 const char *rvalue,
2582 void *data,
2583 void *userdata) {
2584
2585 pa_alsa_profile_set *ps = userdata;
2586 pa_alsa_mapping *m;
2587
2588 pa_assert(ps);
2589
2590 if (!(m = mapping_get(ps, section))) {
2591 pa_log("[%s:%u] %s invalid in section %s", filename, line, lvalue, section);
2592 return -1;
2593 }
2594
2595 if (pa_streq(lvalue, "paths-input")) {
2596 pa_xstrfreev(m->input_path_names);
2597 m->input_path_names = pa_split_spaces_strv(rvalue);
2598 } else {
2599 pa_xstrfreev(m->output_path_names);
2600 m->output_path_names = pa_split_spaces_strv(rvalue);
2601 }
2602
2603 return 0;
2604 }
2605
2606 static int mapping_parse_element(
2607 const char *filename,
2608 unsigned line,
2609 const char *section,
2610 const char *lvalue,
2611 const char *rvalue,
2612 void *data,
2613 void *userdata) {
2614
2615 pa_alsa_profile_set *ps = userdata;
2616 pa_alsa_mapping *m;
2617
2618 pa_assert(ps);
2619
2620 if (!(m = mapping_get(ps, section))) {
2621 pa_log("[%s:%u] %s invalid in section %s", filename, line, lvalue, section);
2622 return -1;
2623 }
2624
2625 if (pa_streq(lvalue, "element-input")) {
2626 pa_xstrfreev(m->input_element);
2627 m->input_element = pa_split_spaces_strv(rvalue);
2628 } else {
2629 pa_xstrfreev(m->output_element);
2630 m->output_element = pa_split_spaces_strv(rvalue);
2631 }
2632
2633 return 0;
2634 }
2635
2636 static int mapping_parse_direction(
2637 const char *filename,
2638 unsigned line,
2639 const char *section,
2640 const char *lvalue,
2641 const char *rvalue,
2642 void *data,
2643 void *userdata) {
2644
2645 pa_alsa_profile_set *ps = userdata;
2646 pa_alsa_mapping *m;
2647
2648 pa_assert(ps);
2649
2650 if (!(m = mapping_get(ps, section))) {
2651 pa_log("[%s:%u] Section name %s invalid.", filename, line, section);
2652 return -1;
2653 }
2654
2655 if (pa_streq(rvalue, "input"))
2656 m->direction = PA_ALSA_DIRECTION_INPUT;
2657 else if (pa_streq(rvalue, "output"))
2658 m->direction = PA_ALSA_DIRECTION_OUTPUT;
2659 else if (pa_streq(rvalue, "any"))
2660 m->direction = PA_ALSA_DIRECTION_ANY;
2661 else {
2662 pa_log("[%s:%u] Direction %s invalid.", filename, line, rvalue);
2663 return -1;
2664 }
2665
2666 return 0;
2667 }
2668
2669 static int mapping_parse_description(
2670 const char *filename,
2671 unsigned line,
2672 const char *section,
2673 const char *lvalue,
2674 const char *rvalue,
2675 void *data,
2676 void *userdata) {
2677
2678 pa_alsa_profile_set *ps = userdata;
2679 pa_alsa_profile *p;
2680 pa_alsa_mapping *m;
2681
2682 pa_assert(ps);
2683
2684 if ((m = mapping_get(ps, section))) {
2685 pa_xstrdup(m->description);
2686 m->description = pa_xstrdup(rvalue);
2687 } else if ((p = profile_get(ps, section))) {
2688 pa_xfree(p->description);
2689 p->description = pa_xstrdup(rvalue);
2690 } else {
2691 pa_log("[%s:%u] Section name %s invalid.", filename, line, section);
2692 return -1;
2693 }
2694
2695 return 0;
2696 }
2697
2698 static int mapping_parse_priority(
2699 const char *filename,
2700 unsigned line,
2701 const char *section,
2702 const char *lvalue,
2703 const char *rvalue,
2704 void *data,
2705 void *userdata) {
2706
2707 pa_alsa_profile_set *ps = userdata;
2708 pa_alsa_profile *p;
2709 pa_alsa_mapping *m;
2710 uint32_t prio;
2711
2712 pa_assert(ps);
2713
2714 if (pa_atou(rvalue, &prio) < 0) {
2715 pa_log("[%s:%u] Priority invalid of '%s'", filename, line, section);
2716 return -1;
2717 }
2718
2719 if ((m = mapping_get(ps, section)))
2720 m->priority = prio;
2721 else if ((p = profile_get(ps, section)))
2722 p->priority = prio;
2723 else {
2724 pa_log("[%s:%u] Section name %s invalid.", filename, line, section);
2725 return -1;
2726 }
2727
2728 return 0;
2729 }
2730
2731 static int profile_parse_mappings(
2732 const char *filename,
2733 unsigned line,
2734 const char *section,
2735 const char *lvalue,
2736 const char *rvalue,
2737 void *data,
2738 void *userdata) {
2739
2740 pa_alsa_profile_set *ps = userdata;
2741 pa_alsa_profile *p;
2742
2743 pa_assert(ps);
2744
2745 if (!(p = profile_get(ps, section))) {
2746 pa_log("[%s:%u] %s invalid in section %s", filename, line, lvalue, section);
2747 return -1;
2748 }
2749
2750 if (pa_streq(lvalue, "input-mappings")) {
2751 pa_xstrfreev(p->input_mapping_names);
2752 p->input_mapping_names = pa_split_spaces_strv(rvalue);
2753 } else {
2754 pa_xstrfreev(p->output_mapping_names);
2755 p->output_mapping_names = pa_split_spaces_strv(rvalue);
2756 }
2757
2758 return 0;
2759 }
2760
2761 static int profile_parse_skip_probe(
2762 const char *filename,
2763 unsigned line,
2764 const char *section,
2765 const char *lvalue,
2766 const char *rvalue,
2767 void *data,
2768 void *userdata) {
2769
2770 pa_alsa_profile_set *ps = userdata;
2771 pa_alsa_profile *p;
2772 int b;
2773
2774 pa_assert(ps);
2775
2776 if (!(p = profile_get(ps, section))) {
2777 pa_log("[%s:%u] %s invalid in section %s", filename, line, lvalue, section);
2778 return -1;
2779 }
2780
2781 if ((b = pa_parse_boolean(rvalue)) < 0) {
2782 pa_log("[%s:%u] Skip probe invalid of '%s'", filename, line, section);
2783 return -1;
2784 }
2785
2786 p->supported = b;
2787
2788 return 0;
2789 }
2790
2791 static int mapping_verify(pa_alsa_mapping *m, const pa_channel_map *bonus) {
2792
2793 static const struct description_map well_known_descriptions[] = {
2794 { "analog-mono", N_("Analog Mono") },
2795 { "analog-stereo", N_("Analog Stereo") },
2796 { "analog-surround-21", N_("Analog Surround 2.1") },
2797 { "analog-surround-30", N_("Analog Surround 3.0") },
2798 { "analog-surround-31", N_("Analog Surround 3.1") },
2799 { "analog-surround-40", N_("Analog Surround 4.0") },
2800 { "analog-surround-41", N_("Analog Surround 4.1") },
2801 { "analog-surround-50", N_("Analog Surround 5.0") },
2802 { "analog-surround-51", N_("Analog Surround 5.1") },
2803 { "analog-surround-61", N_("Analog Surround 6.0") },
2804 { "analog-surround-61", N_("Analog Surround 6.1") },
2805 { "analog-surround-70", N_("Analog Surround 7.0") },
2806 { "analog-surround-71", N_("Analog Surround 7.1") },
2807 { "iec958-stereo", N_("Digital Stereo (IEC958)") },
2808 { "iec958-surround-40", N_("Digital Surround 4.0 (IEC958)") },
2809 { "iec958-ac3-surround-40", N_("Digital Surround 4.0 (IEC958/AC3)") },
2810 { "iec958-ac3-surround-51", N_("Digital Surround 5.1 (IEC958/AC3)") },
2811 { "hdmi-stereo", N_("Digital Stereo (HDMI)") }
2812 };
2813
2814 pa_assert(m);
2815
2816 if (!pa_channel_map_valid(&m->channel_map)) {
2817 pa_log("Mapping %s is missing channel map.", m->name);
2818 return -1;
2819 }
2820
2821 if (!m->device_strings) {
2822 pa_log("Mapping %s is missing device strings.", m->name);
2823 return -1;
2824 }
2825
2826 if ((m->input_path_names && m->input_element) ||
2827 (m->output_path_names && m->output_element)) {
2828 pa_log("Mapping %s must have either mixer path or mixer elment, not both.", m->name);
2829 return -1;
2830 }
2831
2832 if (!m->description)
2833 m->description = pa_xstrdup(lookup_description(m->name,
2834 well_known_descriptions,
2835 PA_ELEMENTSOF(well_known_descriptions)));
2836
2837 if (!m->description)
2838 m->description = pa_xstrdup(m->name);
2839
2840 if (bonus) {
2841 if (pa_channel_map_equal(&m->channel_map, bonus))
2842 m->priority += 50;
2843 else if (m->channel_map.channels == bonus->channels)
2844 m->priority += 30;
2845 }
2846
2847 return 0;
2848 }
2849
2850 void pa_alsa_mapping_dump(pa_alsa_mapping *m) {
2851 char cm[PA_CHANNEL_MAP_SNPRINT_MAX];
2852
2853 pa_assert(m);
2854
2855 pa_log_debug("Mapping %s (%s), priority=%u, channel_map=%s, supported=%s, direction=%i",
2856 m->name,
2857 pa_strnull(m->description),
2858 m->priority,
2859 pa_channel_map_snprint(cm, sizeof(cm), &m->channel_map),
2860 pa_yes_no(m->supported),
2861 m->direction);
2862 }
2863
2864 static void profile_set_add_auto_pair(
2865 pa_alsa_profile_set *ps,
2866 pa_alsa_mapping *m, /* output */
2867 pa_alsa_mapping *n /* input */) {
2868
2869 char *name;
2870 pa_alsa_profile *p;
2871
2872 pa_assert(ps);
2873 pa_assert(m || n);
2874
2875 if (m && m->direction == PA_ALSA_DIRECTION_INPUT)
2876 return;
2877
2878 if (n && n->direction == PA_ALSA_DIRECTION_OUTPUT)
2879 return;
2880
2881 if (m && n)
2882 name = pa_sprintf_malloc("output:%s+input:%s", m->name, n->name);
2883 else if (m)
2884 name = pa_sprintf_malloc("output:%s", m->name);
2885 else
2886 name = pa_sprintf_malloc("input:%s", n->name);
2887
2888 if (pa_hashmap_get(ps->profiles, name)) {
2889 pa_xfree(name);
2890 return;
2891 }
2892
2893 p = pa_xnew0(pa_alsa_profile, 1);
2894 p->profile_set = ps;
2895 p->name = name;
2896
2897 if (m) {
2898 p->output_mappings = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
2899 pa_idxset_put(p->output_mappings, m, NULL);
2900 p->priority += m->priority * 100;
2901 }
2902
2903 if (n) {
2904 p->input_mappings = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
2905 pa_idxset_put(p->input_mappings, n, NULL);
2906 p->priority += n->priority;
2907 }
2908
2909 pa_hashmap_put(ps->profiles, p->name, p);
2910 }
2911
2912 static void profile_set_add_auto(pa_alsa_profile_set *ps) {
2913 pa_alsa_mapping *m, *n;
2914 void *m_state, *n_state;
2915
2916 pa_assert(ps);
2917
2918 PA_HASHMAP_FOREACH(m, ps->mappings, m_state) {
2919 profile_set_add_auto_pair(ps, m, NULL);
2920
2921 PA_HASHMAP_FOREACH(n, ps->mappings, n_state)
2922 profile_set_add_auto_pair(ps, m, n);
2923 }
2924
2925 PA_HASHMAP_FOREACH(n, ps->mappings, n_state)
2926 profile_set_add_auto_pair(ps, NULL, n);
2927 }
2928
2929 static int profile_verify(pa_alsa_profile *p) {
2930
2931 static const struct description_map well_known_descriptions[] = {
2932 { "output:analog-mono+input:analog-mono", N_("Analog Mono Duplex") },
2933 { "output:analog-stereo+input:analog-stereo", N_("Analog Stereo Duplex") },
2934 { "output:iec958-stereo", N_("Digital Stereo Duplex (IEC958)") },
2935 { "off", N_("Off") }
2936 };
2937
2938 pa_assert(p);
2939
2940 /* Replace the output mapping names by the actual mappings */
2941 if (p->output_mapping_names) {
2942 char **name;
2943
2944 pa_assert(!p->output_mappings);
2945 p->output_mappings = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
2946
2947 for (name = p->output_mapping_names; *name; name++) {
2948 pa_alsa_mapping *m;
2949 char **in;
2950 pa_bool_t duplicate = FALSE;
2951
2952 for (in = name + 1; *in; in++)
2953 if (pa_streq(*name, *in)) {
2954 duplicate = TRUE;
2955 break;
2956 }
2957
2958 if (duplicate)
2959 continue;
2960
2961 if (!(m = pa_hashmap_get(p->profile_set->mappings, *name)) || m->direction == PA_ALSA_DIRECTION_INPUT) {
2962 pa_log("Profile '%s' refers to unexistant mapping '%s'.", p->name, *name);
2963 return -1;
2964 }
2965
2966 pa_idxset_put(p->output_mappings, m, NULL);
2967
2968 if (p->supported)
2969 m->supported++;
2970 }
2971
2972 pa_xstrfreev(p->output_mapping_names);
2973 p->output_mapping_names = NULL;
2974 }
2975
2976 /* Replace the input mapping names by the actual mappings */
2977 if (p->input_mapping_names) {
2978 char **name;
2979
2980 pa_assert(!p->input_mappings);
2981 p->input_mappings = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
2982
2983 for (name = p->input_mapping_names; *name; name++) {
2984 pa_alsa_mapping *m;
2985 char **in;
2986 pa_bool_t duplicate = FALSE;
2987
2988 for (in = name + 1; *in; in++)
2989 if (pa_streq(*name, *in)) {
2990 duplicate = TRUE;
2991 break;
2992 }
2993
2994 if (duplicate)
2995 continue;
2996
2997 if (!(m = pa_hashmap_get(p->profile_set->mappings, *name)) || m->direction == PA_ALSA_DIRECTION_OUTPUT) {
2998 pa_log("Profile '%s' refers to unexistant mapping '%s'.", p->name, *name);
2999 return -1;
3000 }
3001
3002 pa_idxset_put(p->input_mappings, m, NULL);
3003
3004 if (p->supported)
3005 m->supported++;
3006 }
3007
3008 pa_xstrfreev(p->input_mapping_names);
3009 p->input_mapping_names = NULL;
3010 }
3011
3012 if (!p->input_mappings && !p->output_mappings) {
3013 pa_log("Profile '%s' lacks mappings.", p->name);
3014 return -1;
3015 }
3016
3017 if (!p->description)
3018 p->description = pa_xstrdup(lookup_description(p->name,
3019 well_known_descriptions,
3020 PA_ELEMENTSOF(well_known_descriptions)));
3021
3022 if (!p->description) {
3023 pa_strbuf *sb;
3024 uint32_t idx;
3025 pa_alsa_mapping *m;
3026
3027 sb = pa_strbuf_new();
3028
3029 if (p->output_mappings)
3030 PA_IDXSET_FOREACH(m, p->output_mappings, idx) {
3031 if (!pa_strbuf_isempty(sb))
3032 pa_strbuf_puts(sb, " + ");
3033
3034 pa_strbuf_printf(sb, "%s Output", m->description);
3035 }
3036
3037 if (p->input_mappings)
3038 PA_IDXSET_FOREACH(m, p->input_mappings, idx) {
3039 if (!pa_strbuf_isempty(sb))
3040 pa_strbuf_puts(sb, " + ");
3041
3042 pa_strbuf_printf(sb, "%s Input", m->description);
3043 }
3044
3045 p->description = pa_strbuf_tostring_free(sb);
3046 }
3047
3048 return 0;
3049 }
3050
3051 void pa_alsa_profile_dump(pa_alsa_profile *p) {
3052 uint32_t idx;
3053 pa_alsa_mapping *m;
3054 pa_assert(p);
3055
3056 pa_log_debug("Profile %s (%s), priority=%u, supported=%s n_input_mappings=%u, n_output_mappings=%u",
3057 p->name,
3058 pa_strnull(p->description),
3059 p->priority,
3060 pa_yes_no(p->supported),
3061 p->input_mappings ? pa_idxset_size(p->input_mappings) : 0,
3062 p->output_mappings ? pa_idxset_size(p->output_mappings) : 0);
3063
3064 if (p->input_mappings)
3065 PA_IDXSET_FOREACH(m, p->input_mappings, idx)
3066 pa_log_debug("Input %s", m->name);
3067
3068 if (p->output_mappings)
3069 PA_IDXSET_FOREACH(m, p->output_mappings, idx)
3070 pa_log_debug("Output %s", m->name);
3071 }
3072
3073 pa_alsa_profile_set* pa_alsa_profile_set_new(const char *fname, const pa_channel_map *bonus) {
3074 pa_alsa_profile_set *ps;
3075 pa_alsa_profile *p;
3076 pa_alsa_mapping *m;
3077 char *fn;
3078 int r;
3079 void *state;
3080
3081 static pa_config_item items[] = {
3082 /* [General] */
3083 { "auto-profiles", pa_config_parse_bool, NULL, "General" },
3084
3085 /* [Mapping ...] */
3086 { "device-strings", mapping_parse_device_strings, NULL, NULL },
3087 { "channel-map", mapping_parse_channel_map, NULL, NULL },
3088 { "paths-input", mapping_parse_paths, NULL, NULL },
3089 { "paths-output", mapping_parse_paths, NULL, NULL },
3090 { "element-input", mapping_parse_element, NULL, NULL },
3091 { "element-output", mapping_parse_element, NULL, NULL },
3092 { "direction", mapping_parse_direction, NULL, NULL },
3093
3094 /* Shared by [Mapping ...] and [Profile ...] */
3095 { "description", mapping_parse_description, NULL, NULL },
3096 { "priority", mapping_parse_priority, NULL, NULL },
3097
3098 /* [Profile ...] */
3099 { "input-mappings", profile_parse_mappings, NULL, NULL },
3100 { "output-mappings", profile_parse_mappings, NULL, NULL },
3101 { "skip-probe", profile_parse_skip_probe, NULL, NULL },
3102 { NULL, NULL, NULL, NULL }
3103 };
3104
3105 ps = pa_xnew0(pa_alsa_profile_set, 1);
3106 ps->mappings = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
3107 ps->profiles = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
3108
3109 items[0].data = &ps->auto_profiles;
3110
3111 if (!fname)
3112 fname = "default.conf";
3113
3114 fn = pa_maybe_prefix_path(fname,
3115 #if defined(__linux__) && !defined(__OPTIMIZE__)
3116 pa_run_from_build_tree() ? PA_BUILDDIR "/modules/alsa/mixer/profile-sets/" :
3117 #endif
3118 PA_ALSA_PROFILE_SETS_DIR);
3119
3120 r = pa_config_parse(fn, NULL, items, ps);
3121 pa_xfree(fn);
3122
3123 if (r < 0)
3124 goto fail;
3125
3126 PA_HASHMAP_FOREACH(m, ps->mappings, state)
3127 if (mapping_verify(m, bonus) < 0)
3128 goto fail;
3129
3130 if (ps->auto_profiles)
3131 profile_set_add_auto(ps);
3132
3133 PA_HASHMAP_FOREACH(p, ps->profiles, state)
3134 if (profile_verify(p) < 0)
3135 goto fail;
3136
3137 return ps;
3138
3139 fail:
3140 pa_alsa_profile_set_free(ps);
3141 return NULL;
3142 }
3143
3144 void pa_alsa_profile_set_probe(
3145 pa_alsa_profile_set *ps,
3146 const char *dev_id,
3147 const pa_sample_spec *ss,
3148 unsigned default_n_fragments,
3149 unsigned default_fragment_size_msec) {
3150
3151 void *state;
3152 pa_alsa_profile *p, *last = NULL;
3153 pa_alsa_mapping *m;
3154
3155 pa_assert(ps);
3156 pa_assert(dev_id);
3157 pa_assert(ss);
3158
3159 if (ps->probed)
3160 return;
3161
3162 PA_HASHMAP_FOREACH(p, ps->profiles, state) {
3163 pa_sample_spec try_ss;
3164 pa_channel_map try_map;
3165 snd_pcm_uframes_t try_period_size, try_buffer_size;
3166 uint32_t idx;
3167
3168 /* Is this already marked that it is supported? (i.e. from the config file) */
3169 if (p->supported)
3170 continue;
3171
3172 pa_log_debug("Looking at profile %s", p->name);
3173
3174 /* Close PCMs from the last iteration we don't need anymore */
3175 if (last && last->output_mappings)
3176 PA_IDXSET_FOREACH(m, last->output_mappings, idx) {
3177
3178 if (!m->output_pcm)
3179 break;
3180
3181 if (last->supported)
3182 m->supported++;
3183
3184 if (!p->output_mappings || !pa_idxset_get_by_data(p->output_mappings, m, NULL)) {
3185 snd_pcm_close(m->output_pcm);
3186 m->output_pcm = NULL;
3187 }
3188 }
3189
3190 if (last && last->input_mappings)
3191 PA_IDXSET_FOREACH(m, last->input_mappings, idx) {
3192
3193 if (!m->input_pcm)
3194 break;
3195
3196 if (last->supported)
3197 m->supported++;
3198
3199 if (!p->input_mappings || !pa_idxset_get_by_data(p->input_mappings, m, NULL)) {
3200 snd_pcm_close(m->input_pcm);
3201 m->input_pcm = NULL;
3202 }
3203 }
3204
3205 p->supported = TRUE;
3206
3207 /* Check if we can open all new ones */
3208 if (p->output_mappings)
3209 PA_IDXSET_FOREACH(m, p->output_mappings, idx) {
3210
3211 if (m->output_pcm)
3212 continue;
3213
3214 pa_log_debug("Checking for playback on %s (%s)", m->description, m->name);
3215 try_map = m->channel_map;
3216 try_ss = *ss;
3217 try_ss.channels = try_map.channels;
3218
3219 try_period_size =
3220 pa_usec_to_bytes(default_fragment_size_msec * PA_USEC_PER_MSEC, &try_ss) /
3221 pa_frame_size(&try_ss);
3222 try_buffer_size = default_n_fragments * try_period_size;
3223
3224 if (!(m ->output_pcm = pa_alsa_open_by_template(
3225 m->device_strings,
3226 dev_id,
3227 NULL,
3228 &try_ss, &try_map,
3229 SND_PCM_STREAM_PLAYBACK,
3230 &try_period_size, &try_buffer_size, 0, NULL, NULL,
3231 TRUE))) {
3232 p->supported = FALSE;
3233 break;
3234 }
3235 }
3236
3237 if (p->input_mappings && p->supported)
3238 PA_IDXSET_FOREACH(m, p->input_mappings, idx) {
3239
3240 if (m->input_pcm)
3241 continue;
3242
3243 pa_log_debug("Checking for recording on %s (%s)", m->description, m->name);
3244 try_map = m->channel_map;
3245 try_ss = *ss;
3246 try_ss.channels = try_map.channels;
3247
3248 try_period_size =
3249 pa_usec_to_bytes(default_fragment_size_msec*PA_USEC_PER_MSEC, &try_ss) /
3250 pa_frame_size(&try_ss);
3251 try_buffer_size = default_n_fragments * try_period_size;
3252
3253 if (!(m ->input_pcm = pa_alsa_open_by_template(
3254 m->device_strings,
3255 dev_id,
3256 NULL,
3257 &try_ss, &try_map,
3258 SND_PCM_STREAM_CAPTURE,
3259 &try_period_size, &try_buffer_size, 0, NULL, NULL,
3260 TRUE))) {
3261 p->supported = FALSE;
3262 break;
3263 }
3264 }
3265
3266 last = p;
3267
3268 if (p->supported)
3269 pa_log_debug("Profile %s supported.", p->name);
3270 }
3271
3272 /* Clean up */
3273 if (last) {
3274 uint32_t idx;
3275
3276 if (last->output_mappings)
3277 PA_IDXSET_FOREACH(m, last->output_mappings, idx)
3278 if (m->output_pcm) {
3279
3280 if (last->supported)
3281 m->supported++;
3282
3283 snd_pcm_close(m->output_pcm);
3284 m->output_pcm = NULL;
3285 }
3286
3287 if (last->input_mappings)
3288 PA_IDXSET_FOREACH(m, last->input_mappings, idx)
3289 if (m->input_pcm) {
3290
3291 if (last->supported)
3292 m->supported++;
3293
3294 snd_pcm_close(m->input_pcm);
3295 m->input_pcm = NULL;
3296 }
3297 }
3298
3299 PA_HASHMAP_FOREACH(p, ps->profiles, state)
3300 if (!p->supported) {
3301 pa_hashmap_remove(ps->profiles, p->name);
3302 profile_free(p);
3303 }
3304
3305 PA_HASHMAP_FOREACH(m, ps->mappings, state)
3306 if (m->supported <= 0) {
3307 pa_hashmap_remove(ps->mappings, m->name);
3308 mapping_free(m);
3309 }
3310
3311 ps->probed = TRUE;
3312 }
3313
3314 void pa_alsa_profile_set_dump(pa_alsa_profile_set *ps) {
3315 pa_alsa_profile *p;
3316 pa_alsa_mapping *m;
3317 void *state;
3318
3319 pa_assert(ps);
3320
3321 pa_log_debug("Profile set %p, auto_profiles=%s, probed=%s, n_mappings=%u, n_profiles=%u",
3322 (void*)
3323 ps,
3324 pa_yes_no(ps->auto_profiles),
3325 pa_yes_no(ps->probed),
3326 pa_hashmap_size(ps->mappings),
3327 pa_hashmap_size(ps->profiles));
3328
3329 PA_HASHMAP_FOREACH(m, ps->mappings, state)
3330 pa_alsa_mapping_dump(m);
3331
3332 PA_HASHMAP_FOREACH(p, ps->profiles, state)
3333 pa_alsa_profile_dump(p);
3334 }
3335
3336 void pa_alsa_add_ports(pa_hashmap **p, pa_alsa_path_set *ps) {
3337 pa_alsa_path *path;
3338
3339 pa_assert(p);
3340 pa_assert(!*p);
3341 pa_assert(ps);
3342
3343 /* if there is no path, we don't want a port list */
3344 if (!ps->paths)
3345 return;
3346
3347 if (!ps->paths->next){
3348 pa_alsa_setting *s;
3349
3350 /* If there is only one path, but no or only one setting, then
3351 * we want a port list either */
3352 if (!ps->paths->settings || !ps->paths->settings->next)
3353 return;
3354
3355 /* Ok, there is only one path, however with multiple settings,
3356 * so let's create a port for each setting */
3357 *p = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
3358
3359 PA_LLIST_FOREACH(s, ps->paths->settings) {
3360 pa_device_port *port;
3361 pa_alsa_port_data *data;
3362
3363 port = pa_device_port_new(s->name, s->description, sizeof(pa_alsa_port_data));
3364 port->priority = s->priority;
3365
3366 data = PA_DEVICE_PORT_DATA(port);
3367 data->path = ps->paths;
3368 data->setting = s;
3369
3370 pa_hashmap_put(*p, port->name, port);
3371 }
3372
3373 } else {
3374
3375 /* We have multiple paths, so let's create a port for each
3376 * one, and each of each settings */
3377 *p = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
3378
3379 PA_LLIST_FOREACH(path, ps->paths) {
3380
3381 if (!path->settings || !path->settings->next) {
3382 pa_device_port *port;
3383 pa_alsa_port_data *data;
3384
3385 /* If there is no or just one setting we only need a
3386 * single entry */
3387
3388 port = pa_device_port_new(path->name, path->description, sizeof(pa_alsa_port_data));
3389 port->priority = path->priority * 100;
3390
3391
3392 data = PA_DEVICE_PORT_DATA(port);
3393 data->path = path;
3394 data->setting = path->settings;
3395
3396 pa_hashmap_put(*p, port->name, port);
3397 } else {
3398 pa_alsa_setting *s;
3399
3400 PA_LLIST_FOREACH(s, path->settings) {
3401 pa_device_port *port;
3402 pa_alsa_port_data *data;
3403 char *n, *d;
3404
3405 n = pa_sprintf_malloc("%s;%s", path->name, s->name);
3406
3407 if (s->description[0])
3408 d = pa_sprintf_malloc(_("%s / %s"), path->description, s->description);
3409 else
3410 d = pa_xstrdup(path->description);
3411
3412 port = pa_device_port_new(n, d, sizeof(pa_alsa_port_data));
3413 port->priority = path->priority * 100 + s->priority;
3414
3415 pa_xfree(n);
3416 pa_xfree(d);
3417
3418 data = PA_DEVICE_PORT_DATA(port);
3419 data->path = path;
3420 data->setting = s;
3421
3422 pa_hashmap_put(*p, port->name, port);
3423 }
3424 }
3425 }
3426 }
3427
3428 pa_log_debug("Added %u ports", pa_hashmap_size(*p));
3429 }