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alsa: Add a proplist to mappings
[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 <asoundlib.h>
29 #include <math.h>
30
31 #ifdef HAVE_VALGRIND_MEMCHECK_H
32 #include <valgrind/memcheck.h>
33 #endif
34
35 #include <pulse/mainloop-api.h>
36 #include <pulse/sample.h>
37 #include <pulse/timeval.h>
38 #include <pulse/util.h>
39 #include <pulse/volume.h>
40 #include <pulse/xmalloc.h>
41 #include <pulse/utf8.h>
42
43 #include <pulsecore/i18n.h>
44 #include <pulsecore/log.h>
45 #include <pulsecore/macro.h>
46 #include <pulsecore/core-util.h>
47 #include <pulsecore/conf-parser.h>
48 #include <pulsecore/strbuf.h>
49
50 #include "alsa-mixer.h"
51 #include "alsa-util.h"
52
53 static int setting_select(pa_alsa_setting *s, snd_mixer_t *m);
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 snd_hctl_t *hctl;
78
79 pa_mainloop_api *m;
80 pa_defer_event *defer;
81 pa_io_event **ios;
82
83 pa_bool_t polled;
84
85 void (*cb)(void *userdata);
86 void *userdata;
87 };
88
89 static void io_cb(pa_mainloop_api *a, pa_io_event *e, int fd, pa_io_event_flags_t events, void *userdata) {
90
91 struct pa_alsa_fdlist *fdl = userdata;
92 int err;
93 unsigned i;
94 unsigned short revents;
95
96 pa_assert(a);
97 pa_assert(fdl);
98 pa_assert(fdl->mixer || fdl->hctl);
99 pa_assert(fdl->fds);
100 pa_assert(fdl->work_fds);
101
102 if (fdl->polled)
103 return;
104
105 fdl->polled = TRUE;
106
107 memcpy(fdl->work_fds, fdl->fds, sizeof(struct pollfd) * fdl->num_fds);
108
109 for (i = 0; i < fdl->num_fds; i++) {
110 if (e == fdl->ios[i]) {
111 if (events & PA_IO_EVENT_INPUT)
112 fdl->work_fds[i].revents |= POLLIN;
113 if (events & PA_IO_EVENT_OUTPUT)
114 fdl->work_fds[i].revents |= POLLOUT;
115 if (events & PA_IO_EVENT_ERROR)
116 fdl->work_fds[i].revents |= POLLERR;
117 if (events & PA_IO_EVENT_HANGUP)
118 fdl->work_fds[i].revents |= POLLHUP;
119 break;
120 }
121 }
122
123 pa_assert(i != fdl->num_fds);
124
125 if (fdl->hctl)
126 err = snd_hctl_poll_descriptors_revents(fdl->hctl, fdl->work_fds, fdl->num_fds, &revents);
127 else
128 err = snd_mixer_poll_descriptors_revents(fdl->mixer, fdl->work_fds, fdl->num_fds, &revents);
129
130 if (err < 0) {
131 pa_log_error("Unable to get poll revent: %s", pa_alsa_strerror(err));
132 return;
133 }
134
135 a->defer_enable(fdl->defer, 1);
136
137 if (revents) {
138 if (fdl->hctl)
139 snd_hctl_handle_events(fdl->hctl);
140 else
141 snd_mixer_handle_events(fdl->mixer);
142 }
143 }
144
145 static void defer_cb(pa_mainloop_api *a, pa_defer_event *e, void *userdata) {
146 struct pa_alsa_fdlist *fdl = userdata;
147 unsigned num_fds, i;
148 int err, n;
149 struct pollfd *temp;
150
151 pa_assert(a);
152 pa_assert(fdl);
153 pa_assert(fdl->mixer || fdl->hctl);
154
155 a->defer_enable(fdl->defer, 0);
156
157 if (fdl->hctl)
158 n = snd_hctl_poll_descriptors_count(fdl->hctl);
159 else
160 n = snd_mixer_poll_descriptors_count(fdl->mixer);
161
162 if (n < 0) {
163 pa_log("snd_mixer_poll_descriptors_count() failed: %s", pa_alsa_strerror(n));
164 return;
165 }
166 num_fds = (unsigned) n;
167
168 if (num_fds != fdl->num_fds) {
169 if (fdl->fds)
170 pa_xfree(fdl->fds);
171 if (fdl->work_fds)
172 pa_xfree(fdl->work_fds);
173 fdl->fds = pa_xnew0(struct pollfd, num_fds);
174 fdl->work_fds = pa_xnew(struct pollfd, num_fds);
175 }
176
177 memset(fdl->work_fds, 0, sizeof(struct pollfd) * num_fds);
178
179 if (fdl->hctl)
180 err = snd_hctl_poll_descriptors(fdl->hctl, fdl->work_fds, num_fds);
181 else
182 err = snd_mixer_poll_descriptors(fdl->mixer, fdl->work_fds, num_fds);
183
184 if (err < 0) {
185 pa_log_error("Unable to get poll descriptors: %s", pa_alsa_strerror(err));
186 return;
187 }
188
189 fdl->polled = FALSE;
190
191 if (memcmp(fdl->fds, fdl->work_fds, sizeof(struct pollfd) * num_fds) == 0)
192 return;
193
194 if (fdl->ios) {
195 for (i = 0; i < fdl->num_fds; i++)
196 a->io_free(fdl->ios[i]);
197
198 if (num_fds != fdl->num_fds) {
199 pa_xfree(fdl->ios);
200 fdl->ios = NULL;
201 }
202 }
203
204 if (!fdl->ios)
205 fdl->ios = pa_xnew(pa_io_event*, num_fds);
206
207 /* Swap pointers */
208 temp = fdl->work_fds;
209 fdl->work_fds = fdl->fds;
210 fdl->fds = temp;
211
212 fdl->num_fds = num_fds;
213
214 for (i = 0;i < num_fds;i++)
215 fdl->ios[i] = a->io_new(a, fdl->fds[i].fd,
216 ((fdl->fds[i].events & POLLIN) ? PA_IO_EVENT_INPUT : 0) |
217 ((fdl->fds[i].events & POLLOUT) ? PA_IO_EVENT_OUTPUT : 0),
218 io_cb, fdl);
219 }
220
221 struct pa_alsa_fdlist *pa_alsa_fdlist_new(void) {
222 struct pa_alsa_fdlist *fdl;
223
224 fdl = pa_xnew0(struct pa_alsa_fdlist, 1);
225
226 return fdl;
227 }
228
229 void pa_alsa_fdlist_free(struct pa_alsa_fdlist *fdl) {
230 pa_assert(fdl);
231
232 if (fdl->defer) {
233 pa_assert(fdl->m);
234 fdl->m->defer_free(fdl->defer);
235 }
236
237 if (fdl->ios) {
238 unsigned i;
239 pa_assert(fdl->m);
240 for (i = 0; i < fdl->num_fds; i++)
241 fdl->m->io_free(fdl->ios[i]);
242 pa_xfree(fdl->ios);
243 }
244
245 if (fdl->fds)
246 pa_xfree(fdl->fds);
247 if (fdl->work_fds)
248 pa_xfree(fdl->work_fds);
249
250 pa_xfree(fdl);
251 }
252
253 /* We can listen to either a snd_hctl_t or a snd_mixer_t, but not both */
254 int pa_alsa_fdlist_set_handle(struct pa_alsa_fdlist *fdl, snd_mixer_t *mixer_handle, snd_hctl_t *hctl_handle, pa_mainloop_api *m) {
255 pa_assert(fdl);
256 pa_assert(hctl_handle || mixer_handle);
257 pa_assert(!(hctl_handle && mixer_handle));
258 pa_assert(m);
259 pa_assert(!fdl->m);
260
261 fdl->hctl = hctl_handle;
262 fdl->mixer = mixer_handle;
263 fdl->m = m;
264 fdl->defer = m->defer_new(m, defer_cb, fdl);
265
266 return 0;
267 }
268
269 struct pa_alsa_mixer_pdata {
270 pa_rtpoll *rtpoll;
271 pa_rtpoll_item *poll_item;
272 snd_mixer_t *mixer;
273 };
274
275
276 struct pa_alsa_mixer_pdata *pa_alsa_mixer_pdata_new(void) {
277 struct pa_alsa_mixer_pdata *pd;
278
279 pd = pa_xnew0(struct pa_alsa_mixer_pdata, 1);
280
281 return pd;
282 }
283
284 void pa_alsa_mixer_pdata_free(struct pa_alsa_mixer_pdata *pd) {
285 pa_assert(pd);
286
287 if (pd->poll_item) {
288 pa_rtpoll_item_free(pd->poll_item);
289 }
290
291 pa_xfree(pd);
292 }
293
294 static int rtpoll_work_cb(pa_rtpoll_item *i) {
295 struct pa_alsa_mixer_pdata *pd;
296 struct pollfd *p;
297 unsigned n_fds;
298 unsigned short revents = 0;
299 int err, ret = 0;
300
301 pd = pa_rtpoll_item_get_userdata(i);
302 pa_assert_fp(pd);
303 pa_assert_fp(i == pd->poll_item);
304
305 p = pa_rtpoll_item_get_pollfd(i, &n_fds);
306
307 if ((err = snd_mixer_poll_descriptors_revents(pd->mixer, p, n_fds, &revents)) < 0) {
308 pa_log_error("Unable to get poll revent: %s", pa_alsa_strerror(err));
309 ret = -1;
310 goto fail;
311 }
312
313 if (revents) {
314 if (revents & (POLLNVAL | POLLERR)) {
315 pa_log_debug("Device disconnected, stopping poll on mixer");
316 goto fail;
317 } else if (revents & POLLERR) {
318 /* This shouldn't happen. */
319 pa_log_error("Got a POLLERR (revents = %04x), stopping poll on mixer", revents);
320 goto fail;
321 }
322
323 err = snd_mixer_handle_events(pd->mixer);
324
325 if (PA_LIKELY(err >= 0)) {
326 pa_rtpoll_item_free(i);
327 pa_alsa_set_mixer_rtpoll(pd, pd->mixer, pd->rtpoll);
328 } else {
329 pa_log_error("Error handling mixer event: %s", pa_alsa_strerror(err));
330 ret = -1;
331 goto fail;
332 }
333 }
334
335 return ret;
336
337 fail:
338 pa_rtpoll_item_free(i);
339
340 pd->poll_item = NULL;
341 pd->rtpoll = NULL;
342 pd->mixer = NULL;
343
344 return ret;
345 }
346
347 int pa_alsa_set_mixer_rtpoll(struct pa_alsa_mixer_pdata *pd, snd_mixer_t *mixer, pa_rtpoll *rtp) {
348 pa_rtpoll_item *i;
349 struct pollfd *p;
350 int err, n;
351
352 pa_assert(pd);
353 pa_assert(mixer);
354 pa_assert(rtp);
355
356 if ((n = snd_mixer_poll_descriptors_count(mixer)) < 0) {
357 pa_log("snd_mixer_poll_descriptors_count() failed: %s", pa_alsa_strerror(n));
358 return -1;
359 }
360
361 i = pa_rtpoll_item_new(rtp, PA_RTPOLL_LATE, (unsigned) n);
362
363 p = pa_rtpoll_item_get_pollfd(i, NULL);
364
365 memset(p, 0, sizeof(struct pollfd) * n);
366
367 if ((err = snd_mixer_poll_descriptors(mixer, p, (unsigned) n)) < 0) {
368 pa_log_error("Unable to get poll descriptors: %s", pa_alsa_strerror(err));
369 pa_rtpoll_item_free(i);
370 return -1;
371 }
372
373 pd->rtpoll = rtp;
374 pd->poll_item = i;
375 pd->mixer = mixer;
376
377 pa_rtpoll_item_set_userdata(i, pd);
378 pa_rtpoll_item_set_work_callback(i, rtpoll_work_cb);
379
380 return 0;
381 }
382
383
384
385 static const snd_mixer_selem_channel_id_t alsa_channel_ids[PA_CHANNEL_POSITION_MAX] = {
386 [PA_CHANNEL_POSITION_MONO] = SND_MIXER_SCHN_MONO, /* The ALSA name is just an alias! */
387
388 [PA_CHANNEL_POSITION_FRONT_CENTER] = SND_MIXER_SCHN_FRONT_CENTER,
389 [PA_CHANNEL_POSITION_FRONT_LEFT] = SND_MIXER_SCHN_FRONT_LEFT,
390 [PA_CHANNEL_POSITION_FRONT_RIGHT] = SND_MIXER_SCHN_FRONT_RIGHT,
391
392 [PA_CHANNEL_POSITION_REAR_CENTER] = SND_MIXER_SCHN_REAR_CENTER,
393 [PA_CHANNEL_POSITION_REAR_LEFT] = SND_MIXER_SCHN_REAR_LEFT,
394 [PA_CHANNEL_POSITION_REAR_RIGHT] = SND_MIXER_SCHN_REAR_RIGHT,
395
396 [PA_CHANNEL_POSITION_LFE] = SND_MIXER_SCHN_WOOFER,
397
398 [PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER] = SND_MIXER_SCHN_UNKNOWN,
399 [PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER] = SND_MIXER_SCHN_UNKNOWN,
400
401 [PA_CHANNEL_POSITION_SIDE_LEFT] = SND_MIXER_SCHN_SIDE_LEFT,
402 [PA_CHANNEL_POSITION_SIDE_RIGHT] = SND_MIXER_SCHN_SIDE_RIGHT,
403
404 [PA_CHANNEL_POSITION_AUX0] = SND_MIXER_SCHN_UNKNOWN,
405 [PA_CHANNEL_POSITION_AUX1] = SND_MIXER_SCHN_UNKNOWN,
406 [PA_CHANNEL_POSITION_AUX2] = SND_MIXER_SCHN_UNKNOWN,
407 [PA_CHANNEL_POSITION_AUX3] = SND_MIXER_SCHN_UNKNOWN,
408 [PA_CHANNEL_POSITION_AUX4] = SND_MIXER_SCHN_UNKNOWN,
409 [PA_CHANNEL_POSITION_AUX5] = SND_MIXER_SCHN_UNKNOWN,
410 [PA_CHANNEL_POSITION_AUX6] = SND_MIXER_SCHN_UNKNOWN,
411 [PA_CHANNEL_POSITION_AUX7] = SND_MIXER_SCHN_UNKNOWN,
412 [PA_CHANNEL_POSITION_AUX8] = SND_MIXER_SCHN_UNKNOWN,
413 [PA_CHANNEL_POSITION_AUX9] = SND_MIXER_SCHN_UNKNOWN,
414 [PA_CHANNEL_POSITION_AUX10] = SND_MIXER_SCHN_UNKNOWN,
415 [PA_CHANNEL_POSITION_AUX11] = SND_MIXER_SCHN_UNKNOWN,
416 [PA_CHANNEL_POSITION_AUX12] = SND_MIXER_SCHN_UNKNOWN,
417 [PA_CHANNEL_POSITION_AUX13] = SND_MIXER_SCHN_UNKNOWN,
418 [PA_CHANNEL_POSITION_AUX14] = SND_MIXER_SCHN_UNKNOWN,
419 [PA_CHANNEL_POSITION_AUX15] = SND_MIXER_SCHN_UNKNOWN,
420 [PA_CHANNEL_POSITION_AUX16] = SND_MIXER_SCHN_UNKNOWN,
421 [PA_CHANNEL_POSITION_AUX17] = SND_MIXER_SCHN_UNKNOWN,
422 [PA_CHANNEL_POSITION_AUX18] = SND_MIXER_SCHN_UNKNOWN,
423 [PA_CHANNEL_POSITION_AUX19] = SND_MIXER_SCHN_UNKNOWN,
424 [PA_CHANNEL_POSITION_AUX20] = SND_MIXER_SCHN_UNKNOWN,
425 [PA_CHANNEL_POSITION_AUX21] = SND_MIXER_SCHN_UNKNOWN,
426 [PA_CHANNEL_POSITION_AUX22] = SND_MIXER_SCHN_UNKNOWN,
427 [PA_CHANNEL_POSITION_AUX23] = SND_MIXER_SCHN_UNKNOWN,
428 [PA_CHANNEL_POSITION_AUX24] = SND_MIXER_SCHN_UNKNOWN,
429 [PA_CHANNEL_POSITION_AUX25] = SND_MIXER_SCHN_UNKNOWN,
430 [PA_CHANNEL_POSITION_AUX26] = SND_MIXER_SCHN_UNKNOWN,
431 [PA_CHANNEL_POSITION_AUX27] = SND_MIXER_SCHN_UNKNOWN,
432 [PA_CHANNEL_POSITION_AUX28] = SND_MIXER_SCHN_UNKNOWN,
433 [PA_CHANNEL_POSITION_AUX29] = SND_MIXER_SCHN_UNKNOWN,
434 [PA_CHANNEL_POSITION_AUX30] = SND_MIXER_SCHN_UNKNOWN,
435 [PA_CHANNEL_POSITION_AUX31] = SND_MIXER_SCHN_UNKNOWN,
436
437 [PA_CHANNEL_POSITION_TOP_CENTER] = SND_MIXER_SCHN_UNKNOWN,
438
439 [PA_CHANNEL_POSITION_TOP_FRONT_CENTER] = SND_MIXER_SCHN_UNKNOWN,
440 [PA_CHANNEL_POSITION_TOP_FRONT_LEFT] = SND_MIXER_SCHN_UNKNOWN,
441 [PA_CHANNEL_POSITION_TOP_FRONT_RIGHT] = SND_MIXER_SCHN_UNKNOWN,
442
443 [PA_CHANNEL_POSITION_TOP_REAR_CENTER] = SND_MIXER_SCHN_UNKNOWN,
444 [PA_CHANNEL_POSITION_TOP_REAR_LEFT] = SND_MIXER_SCHN_UNKNOWN,
445 [PA_CHANNEL_POSITION_TOP_REAR_RIGHT] = SND_MIXER_SCHN_UNKNOWN
446 };
447
448 static void setting_free(pa_alsa_setting *s) {
449 pa_assert(s);
450
451 if (s->options)
452 pa_idxset_free(s->options, NULL, NULL);
453
454 pa_xfree(s->name);
455 pa_xfree(s->description);
456 pa_xfree(s);
457 }
458
459 static void option_free(pa_alsa_option *o) {
460 pa_assert(o);
461
462 pa_xfree(o->alsa_name);
463 pa_xfree(o->name);
464 pa_xfree(o->description);
465 pa_xfree(o);
466 }
467
468 static void decibel_fix_free(pa_alsa_decibel_fix *db_fix) {
469 pa_assert(db_fix);
470
471 pa_xfree(db_fix->name);
472 pa_xfree(db_fix->db_values);
473
474 pa_xfree(db_fix);
475 }
476
477 static void jack_free(pa_alsa_jack *j) {
478 pa_assert(j);
479
480 pa_xfree(j->alsa_name);
481 pa_xfree(j->name);
482 pa_xfree(j);
483 }
484
485 static void element_free(pa_alsa_element *e) {
486 pa_alsa_option *o;
487 pa_assert(e);
488
489 while ((o = e->options)) {
490 PA_LLIST_REMOVE(pa_alsa_option, e->options, o);
491 option_free(o);
492 }
493
494 if (e->db_fix)
495 decibel_fix_free(e->db_fix);
496
497 pa_xfree(e->alsa_name);
498 pa_xfree(e);
499 }
500
501 void pa_alsa_path_free(pa_alsa_path *p) {
502 pa_alsa_jack *j;
503 pa_alsa_element *e;
504 pa_alsa_setting *s;
505
506 pa_assert(p);
507
508 while ((j = p->jacks)) {
509 PA_LLIST_REMOVE(pa_alsa_jack, p->jacks, j);
510 jack_free(j);
511 }
512
513 while ((e = p->elements)) {
514 PA_LLIST_REMOVE(pa_alsa_element, p->elements, e);
515 element_free(e);
516 }
517
518 while ((s = p->settings)) {
519 PA_LLIST_REMOVE(pa_alsa_setting, p->settings, s);
520 setting_free(s);
521 }
522
523 pa_proplist_free(p->proplist);
524 pa_xfree(p->name);
525 pa_xfree(p->description);
526 pa_xfree(p);
527 }
528
529 void pa_alsa_path_set_free(pa_alsa_path_set *ps) {
530 pa_assert(ps);
531
532 if (ps->paths)
533 pa_hashmap_free(ps->paths, NULL, NULL);
534
535 pa_xfree(ps);
536 }
537
538 static long to_alsa_dB(pa_volume_t v) {
539 return (long) (pa_sw_volume_to_dB(v) * 100.0);
540 }
541
542 static pa_volume_t from_alsa_dB(long v) {
543 return pa_sw_volume_from_dB((double) v / 100.0);
544 }
545
546 static long to_alsa_volume(pa_volume_t v, long min, long max) {
547 long w;
548
549 w = (long) round(((double) v * (double) (max - min)) / PA_VOLUME_NORM) + min;
550 return PA_CLAMP_UNLIKELY(w, min, max);
551 }
552
553 static pa_volume_t from_alsa_volume(long v, long min, long max) {
554 return (pa_volume_t) round(((double) (v - min) * PA_VOLUME_NORM) / (double) (max - min));
555 }
556
557 #define SELEM_INIT(sid, name) \
558 do { \
559 snd_mixer_selem_id_alloca(&(sid)); \
560 snd_mixer_selem_id_set_name((sid), (name)); \
561 snd_mixer_selem_id_set_index((sid), 0); \
562 } while(FALSE)
563
564 static int element_get_volume(pa_alsa_element *e, snd_mixer_t *m, const pa_channel_map *cm, pa_cvolume *v) {
565 snd_mixer_selem_id_t *sid;
566 snd_mixer_elem_t *me;
567 snd_mixer_selem_channel_id_t c;
568 pa_channel_position_mask_t mask = 0;
569 unsigned k;
570
571 pa_assert(m);
572 pa_assert(e);
573 pa_assert(cm);
574 pa_assert(v);
575
576 SELEM_INIT(sid, e->alsa_name);
577 if (!(me = snd_mixer_find_selem(m, sid))) {
578 pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
579 return -1;
580 }
581
582 pa_cvolume_mute(v, cm->channels);
583
584 /* We take the highest volume of all channels that match */
585
586 for (c = 0; c <= SND_MIXER_SCHN_LAST; c++) {
587 int r;
588 pa_volume_t f;
589
590 if (e->has_dB) {
591 long value = 0;
592
593 if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
594 if (snd_mixer_selem_has_playback_channel(me, c)) {
595 if (e->db_fix) {
596 if ((r = snd_mixer_selem_get_playback_volume(me, c, &value)) >= 0) {
597 /* If the channel volume is outside the limits set
598 * by the dB fix, we clamp the hw volume to be
599 * within the limits. */
600 if (value < e->db_fix->min_step) {
601 value = e->db_fix->min_step;
602 snd_mixer_selem_set_playback_volume(me, c, value);
603 pa_log_debug("Playback volume for element %s channel %i was below the dB fix limit. "
604 "Volume reset to %0.2f dB.", e->alsa_name, c,
605 e->db_fix->db_values[value - e->db_fix->min_step] / 100.0);
606 } else if (value > e->db_fix->max_step) {
607 value = e->db_fix->max_step;
608 snd_mixer_selem_set_playback_volume(me, c, value);
609 pa_log_debug("Playback volume for element %s channel %i was over the dB fix limit. "
610 "Volume reset to %0.2f dB.", e->alsa_name, c,
611 e->db_fix->db_values[value - e->db_fix->min_step] / 100.0);
612 }
613
614 /* Volume step -> dB value conversion. */
615 value = e->db_fix->db_values[value - e->db_fix->min_step];
616 }
617 } else
618 r = snd_mixer_selem_get_playback_dB(me, c, &value);
619 } else
620 r = -1;
621 } else {
622 if (snd_mixer_selem_has_capture_channel(me, c)) {
623 if (e->db_fix) {
624 if ((r = snd_mixer_selem_get_capture_volume(me, c, &value)) >= 0) {
625 /* If the channel volume is outside the limits set
626 * by the dB fix, we clamp the hw volume to be
627 * within the limits. */
628 if (value < e->db_fix->min_step) {
629 value = e->db_fix->min_step;
630 snd_mixer_selem_set_capture_volume(me, c, value);
631 pa_log_debug("Capture volume for element %s channel %i was below the dB fix limit. "
632 "Volume reset to %0.2f dB.", e->alsa_name, c,
633 e->db_fix->db_values[value - e->db_fix->min_step] / 100.0);
634 } else if (value > e->db_fix->max_step) {
635 value = e->db_fix->max_step;
636 snd_mixer_selem_set_capture_volume(me, c, value);
637 pa_log_debug("Capture volume for element %s channel %i was over the dB fix limit. "
638 "Volume reset to %0.2f dB.", e->alsa_name, c,
639 e->db_fix->db_values[value - e->db_fix->min_step] / 100.0);
640 }
641
642 /* Volume step -> dB value conversion. */
643 value = e->db_fix->db_values[value - e->db_fix->min_step];
644 }
645 } else
646 r = snd_mixer_selem_get_capture_dB(me, c, &value);
647 } else
648 r = -1;
649 }
650
651 if (r < 0)
652 continue;
653
654 #ifdef HAVE_VALGRIND_MEMCHECK_H
655 VALGRIND_MAKE_MEM_DEFINED(&value, sizeof(value));
656 #endif
657
658 f = from_alsa_dB(value);
659
660 } else {
661 long value = 0;
662
663 if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
664 if (snd_mixer_selem_has_playback_channel(me, c))
665 r = snd_mixer_selem_get_playback_volume(me, c, &value);
666 else
667 r = -1;
668 } else {
669 if (snd_mixer_selem_has_capture_channel(me, c))
670 r = snd_mixer_selem_get_capture_volume(me, c, &value);
671 else
672 r = -1;
673 }
674
675 if (r < 0)
676 continue;
677
678 f = from_alsa_volume(value, e->min_volume, e->max_volume);
679 }
680
681 for (k = 0; k < cm->channels; k++)
682 if (e->masks[c][e->n_channels-1] & PA_CHANNEL_POSITION_MASK(cm->map[k]))
683 if (v->values[k] < f)
684 v->values[k] = f;
685
686 mask |= e->masks[c][e->n_channels-1];
687 }
688
689 for (k = 0; k < cm->channels; k++)
690 if (!(mask & PA_CHANNEL_POSITION_MASK(cm->map[k])))
691 v->values[k] = PA_VOLUME_NORM;
692
693 return 0;
694 }
695
696 int pa_alsa_path_get_volume(pa_alsa_path *p, snd_mixer_t *m, const pa_channel_map *cm, pa_cvolume *v) {
697 pa_alsa_element *e;
698
699 pa_assert(m);
700 pa_assert(p);
701 pa_assert(cm);
702 pa_assert(v);
703
704 if (!p->has_volume)
705 return -1;
706
707 pa_cvolume_reset(v, cm->channels);
708
709 PA_LLIST_FOREACH(e, p->elements) {
710 pa_cvolume ev;
711
712 if (e->volume_use != PA_ALSA_VOLUME_MERGE)
713 continue;
714
715 pa_assert(!p->has_dB || e->has_dB);
716
717 if (element_get_volume(e, m, cm, &ev) < 0)
718 return -1;
719
720 /* If we have no dB information all we can do is take the first element and leave */
721 if (!p->has_dB) {
722 *v = ev;
723 return 0;
724 }
725
726 pa_sw_cvolume_multiply(v, v, &ev);
727 }
728
729 return 0;
730 }
731
732 static int element_get_switch(pa_alsa_element *e, snd_mixer_t *m, pa_bool_t *b) {
733 snd_mixer_selem_id_t *sid;
734 snd_mixer_elem_t *me;
735 snd_mixer_selem_channel_id_t c;
736
737 pa_assert(m);
738 pa_assert(e);
739 pa_assert(b);
740
741 SELEM_INIT(sid, e->alsa_name);
742 if (!(me = snd_mixer_find_selem(m, sid))) {
743 pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
744 return -1;
745 }
746
747 /* We return muted if at least one channel is muted */
748
749 for (c = 0; c <= SND_MIXER_SCHN_LAST; c++) {
750 int r;
751 int value = 0;
752
753 if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
754 if (snd_mixer_selem_has_playback_channel(me, c))
755 r = snd_mixer_selem_get_playback_switch(me, c, &value);
756 else
757 r = -1;
758 } else {
759 if (snd_mixer_selem_has_capture_channel(me, c))
760 r = snd_mixer_selem_get_capture_switch(me, c, &value);
761 else
762 r = -1;
763 }
764
765 if (r < 0)
766 continue;
767
768 if (!value) {
769 *b = FALSE;
770 return 0;
771 }
772 }
773
774 *b = TRUE;
775 return 0;
776 }
777
778 int pa_alsa_path_get_mute(pa_alsa_path *p, snd_mixer_t *m, pa_bool_t *muted) {
779 pa_alsa_element *e;
780
781 pa_assert(m);
782 pa_assert(p);
783 pa_assert(muted);
784
785 if (!p->has_mute)
786 return -1;
787
788 PA_LLIST_FOREACH(e, p->elements) {
789 pa_bool_t b;
790
791 if (e->switch_use != PA_ALSA_SWITCH_MUTE)
792 continue;
793
794 if (element_get_switch(e, m, &b) < 0)
795 return -1;
796
797 if (!b) {
798 *muted = TRUE;
799 return 0;
800 }
801 }
802
803 *muted = FALSE;
804 return 0;
805 }
806
807 /* Finds the closest item in db_fix->db_values and returns the corresponding
808 * step. *db_value is replaced with the value from the db_values table.
809 * Rounding is done based on the rounding parameter: -1 means rounding down and
810 * +1 means rounding up. */
811 static long decibel_fix_get_step(pa_alsa_decibel_fix *db_fix, long *db_value, int rounding) {
812 unsigned i = 0;
813 unsigned max_i = 0;
814
815 pa_assert(db_fix);
816 pa_assert(db_value);
817 pa_assert(rounding != 0);
818
819 max_i = db_fix->max_step - db_fix->min_step;
820
821 if (rounding > 0) {
822 for (i = 0; i < max_i; i++) {
823 if (db_fix->db_values[i] >= *db_value)
824 break;
825 }
826 } else {
827 for (i = 0; i < max_i; i++) {
828 if (db_fix->db_values[i + 1] > *db_value)
829 break;
830 }
831 }
832
833 *db_value = db_fix->db_values[i];
834
835 return i + db_fix->min_step;
836 }
837
838 /* Alsa lib documentation says for snd_mixer_selem_set_playback_dB() direction argument,
839 * that "-1 = accurate or first below, 0 = accurate, 1 = accurate or first above".
840 * But even with accurate nearest dB volume step is not selected, so that is why we need
841 * this function. Returns 0 and nearest selectable volume in *value_dB on success or
842 * negative error code if fails. */
843 static int element_get_nearest_alsa_dB(snd_mixer_elem_t *me, snd_mixer_selem_channel_id_t c, pa_alsa_direction_t d, long *value_dB) {
844
845 long alsa_val;
846 long value_high;
847 long value_low;
848 int r = -1;
849
850 pa_assert(me);
851 pa_assert(value_dB);
852
853 if (d == PA_ALSA_DIRECTION_OUTPUT) {
854 if ((r = snd_mixer_selem_ask_playback_dB_vol(me, *value_dB, +1, &alsa_val)) >= 0)
855 r = snd_mixer_selem_ask_playback_vol_dB(me, alsa_val, &value_high);
856
857 if (r < 0)
858 return r;
859
860 if (value_high == *value_dB)
861 return r;
862
863 if ((r = snd_mixer_selem_ask_playback_dB_vol(me, *value_dB, -1, &alsa_val)) >= 0)
864 r = snd_mixer_selem_ask_playback_vol_dB(me, alsa_val, &value_low);
865 } else {
866 if ((r = snd_mixer_selem_ask_capture_dB_vol(me, *value_dB, +1, &alsa_val)) >= 0)
867 r = snd_mixer_selem_ask_capture_vol_dB(me, alsa_val, &value_high);
868
869 if (r < 0)
870 return r;
871
872 if (value_high == *value_dB)
873 return r;
874
875 if ((r = snd_mixer_selem_ask_capture_dB_vol(me, *value_dB, -1, &alsa_val)) >= 0)
876 r = snd_mixer_selem_ask_capture_vol_dB(me, alsa_val, &value_low);
877 }
878
879 if (r < 0)
880 return r;
881
882 if (labs(value_high - *value_dB) < labs(value_low - *value_dB))
883 *value_dB = value_high;
884 else
885 *value_dB = value_low;
886
887 return r;
888 }
889
890 static int element_set_volume(pa_alsa_element *e, snd_mixer_t *m, const pa_channel_map *cm, pa_cvolume *v, pa_bool_t deferred_volume, pa_bool_t write_to_hw) {
891
892 snd_mixer_selem_id_t *sid;
893 pa_cvolume rv;
894 snd_mixer_elem_t *me;
895 snd_mixer_selem_channel_id_t c;
896 pa_channel_position_mask_t mask = 0;
897 unsigned k;
898
899 pa_assert(m);
900 pa_assert(e);
901 pa_assert(cm);
902 pa_assert(v);
903 pa_assert(pa_cvolume_compatible_with_channel_map(v, cm));
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 pa_cvolume_mute(&rv, cm->channels);
912
913 for (c = 0; c <= SND_MIXER_SCHN_LAST; c++) {
914 int r;
915 pa_volume_t f = PA_VOLUME_MUTED;
916 pa_bool_t found = FALSE;
917
918 for (k = 0; k < cm->channels; k++)
919 if (e->masks[c][e->n_channels-1] & PA_CHANNEL_POSITION_MASK(cm->map[k])) {
920 found = TRUE;
921 if (v->values[k] > f)
922 f = v->values[k];
923 }
924
925 if (!found) {
926 /* Hmm, so this channel does not exist in the volume
927 * struct, so let's bind it to the overall max of the
928 * volume. */
929 f = pa_cvolume_max(v);
930 }
931
932 if (e->has_dB) {
933 long value = to_alsa_dB(f);
934 int rounding;
935
936 if (e->volume_limit >= 0 && value > (e->max_dB * 100))
937 value = e->max_dB * 100;
938
939 if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
940 /* If we call set_playback_volume() without checking first
941 * if the channel is available, ALSA behaves very
942 * strangely and doesn't fail the call */
943 if (snd_mixer_selem_has_playback_channel(me, c)) {
944 rounding = +1;
945 if (e->db_fix) {
946 if (write_to_hw)
947 r = snd_mixer_selem_set_playback_volume(me, c, decibel_fix_get_step(e->db_fix, &value, rounding));
948 else {
949 decibel_fix_get_step(e->db_fix, &value, rounding);
950 r = 0;
951 }
952
953 } else {
954 if (write_to_hw) {
955 if (deferred_volume) {
956 if ((r = element_get_nearest_alsa_dB(me, c, PA_ALSA_DIRECTION_OUTPUT, &value)) >= 0)
957 r = snd_mixer_selem_set_playback_dB(me, c, value, 0);
958 } else {
959 if ((r = snd_mixer_selem_set_playback_dB(me, c, value, rounding)) >= 0)
960 r = snd_mixer_selem_get_playback_dB(me, c, &value);
961 }
962 } else {
963 long alsa_val;
964 if ((r = snd_mixer_selem_ask_playback_dB_vol(me, value, rounding, &alsa_val)) >= 0)
965 r = snd_mixer_selem_ask_playback_vol_dB(me, alsa_val, &value);
966 }
967 }
968 } else
969 r = -1;
970 } else {
971 if (snd_mixer_selem_has_capture_channel(me, c)) {
972 rounding = -1;
973 if (e->db_fix) {
974 if (write_to_hw)
975 r = snd_mixer_selem_set_capture_volume(me, c, decibel_fix_get_step(e->db_fix, &value, rounding));
976 else {
977 decibel_fix_get_step(e->db_fix, &value, rounding);
978 r = 0;
979 }
980
981 } else {
982 if (write_to_hw) {
983 if (deferred_volume) {
984 if ((r = element_get_nearest_alsa_dB(me, c, PA_ALSA_DIRECTION_INPUT, &value)) >= 0)
985 r = snd_mixer_selem_set_capture_dB(me, c, value, 0);
986 } else {
987 if ((r = snd_mixer_selem_set_capture_dB(me, c, value, rounding)) >= 0)
988 r = snd_mixer_selem_get_capture_dB(me, c, &value);
989 }
990 } else {
991 long alsa_val;
992 if ((r = snd_mixer_selem_ask_capture_dB_vol(me, value, rounding, &alsa_val)) >= 0)
993 r = snd_mixer_selem_ask_capture_vol_dB(me, alsa_val, &value);
994 }
995 }
996 } else
997 r = -1;
998 }
999
1000 if (r < 0)
1001 continue;
1002
1003 #ifdef HAVE_VALGRIND_MEMCHECK_H
1004 VALGRIND_MAKE_MEM_DEFINED(&value, sizeof(value));
1005 #endif
1006
1007 f = from_alsa_dB(value);
1008
1009 } else {
1010 long value;
1011
1012 value = to_alsa_volume(f, e->min_volume, e->max_volume);
1013
1014 if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
1015 if (snd_mixer_selem_has_playback_channel(me, c)) {
1016 if ((r = snd_mixer_selem_set_playback_volume(me, c, value)) >= 0)
1017 r = snd_mixer_selem_get_playback_volume(me, c, &value);
1018 } else
1019 r = -1;
1020 } else {
1021 if (snd_mixer_selem_has_capture_channel(me, c)) {
1022 if ((r = snd_mixer_selem_set_capture_volume(me, c, value)) >= 0)
1023 r = snd_mixer_selem_get_capture_volume(me, c, &value);
1024 } else
1025 r = -1;
1026 }
1027
1028 if (r < 0)
1029 continue;
1030
1031 f = from_alsa_volume(value, e->min_volume, e->max_volume);
1032 }
1033
1034 for (k = 0; k < cm->channels; k++)
1035 if (e->masks[c][e->n_channels-1] & PA_CHANNEL_POSITION_MASK(cm->map[k]))
1036 if (rv.values[k] < f)
1037 rv.values[k] = f;
1038
1039 mask |= e->masks[c][e->n_channels-1];
1040 }
1041
1042 for (k = 0; k < cm->channels; k++)
1043 if (!(mask & PA_CHANNEL_POSITION_MASK(cm->map[k])))
1044 rv.values[k] = PA_VOLUME_NORM;
1045
1046 *v = rv;
1047 return 0;
1048 }
1049
1050 int pa_alsa_path_set_volume(pa_alsa_path *p, snd_mixer_t *m, const pa_channel_map *cm, pa_cvolume *v, pa_bool_t deferred_volume, pa_bool_t write_to_hw) {
1051
1052 pa_alsa_element *e;
1053 pa_cvolume rv;
1054
1055 pa_assert(m);
1056 pa_assert(p);
1057 pa_assert(cm);
1058 pa_assert(v);
1059 pa_assert(pa_cvolume_compatible_with_channel_map(v, cm));
1060
1061 if (!p->has_volume)
1062 return -1;
1063
1064 rv = *v; /* Remaining adjustment */
1065 pa_cvolume_reset(v, cm->channels); /* Adjustment done */
1066
1067 PA_LLIST_FOREACH(e, p->elements) {
1068 pa_cvolume ev;
1069
1070 if (e->volume_use != PA_ALSA_VOLUME_MERGE)
1071 continue;
1072
1073 pa_assert(!p->has_dB || e->has_dB);
1074
1075 ev = rv;
1076 if (element_set_volume(e, m, cm, &ev, deferred_volume, write_to_hw) < 0)
1077 return -1;
1078
1079 if (!p->has_dB) {
1080 *v = ev;
1081 return 0;
1082 }
1083
1084 pa_sw_cvolume_multiply(v, v, &ev);
1085 pa_sw_cvolume_divide(&rv, &rv, &ev);
1086 }
1087
1088 return 0;
1089 }
1090
1091 static int element_set_switch(pa_alsa_element *e, snd_mixer_t *m, pa_bool_t b) {
1092 snd_mixer_elem_t *me;
1093 snd_mixer_selem_id_t *sid;
1094 int r;
1095
1096 pa_assert(m);
1097 pa_assert(e);
1098
1099 SELEM_INIT(sid, e->alsa_name);
1100 if (!(me = snd_mixer_find_selem(m, sid))) {
1101 pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
1102 return -1;
1103 }
1104
1105 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1106 r = snd_mixer_selem_set_playback_switch_all(me, b);
1107 else
1108 r = snd_mixer_selem_set_capture_switch_all(me, b);
1109
1110 if (r < 0)
1111 pa_log_warn("Failed to set switch of %s: %s", e->alsa_name, pa_alsa_strerror(errno));
1112
1113 return r;
1114 }
1115
1116 int pa_alsa_path_set_mute(pa_alsa_path *p, snd_mixer_t *m, pa_bool_t muted) {
1117 pa_alsa_element *e;
1118
1119 pa_assert(m);
1120 pa_assert(p);
1121
1122 if (!p->has_mute)
1123 return -1;
1124
1125 PA_LLIST_FOREACH(e, p->elements) {
1126
1127 if (e->switch_use != PA_ALSA_SWITCH_MUTE)
1128 continue;
1129
1130 if (element_set_switch(e, m, !muted) < 0)
1131 return -1;
1132 }
1133
1134 return 0;
1135 }
1136
1137 /* Depending on whether e->volume_use is _OFF, _ZERO or _CONSTANT, this
1138 * function sets all channels of the volume element to e->min_volume, 0 dB or
1139 * e->constant_volume. */
1140 static int element_set_constant_volume(pa_alsa_element *e, snd_mixer_t *m) {
1141 snd_mixer_elem_t *me = NULL;
1142 snd_mixer_selem_id_t *sid = NULL;
1143 int r = 0;
1144 long volume = -1;
1145 pa_bool_t volume_set = FALSE;
1146
1147 pa_assert(m);
1148 pa_assert(e);
1149
1150 SELEM_INIT(sid, e->alsa_name);
1151 if (!(me = snd_mixer_find_selem(m, sid))) {
1152 pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
1153 return -1;
1154 }
1155
1156 switch (e->volume_use) {
1157 case PA_ALSA_VOLUME_OFF:
1158 volume = e->min_volume;
1159 volume_set = TRUE;
1160 break;
1161
1162 case PA_ALSA_VOLUME_ZERO:
1163 if (e->db_fix) {
1164 long dB = 0;
1165
1166 volume = decibel_fix_get_step(e->db_fix, &dB, (e->direction == PA_ALSA_DIRECTION_OUTPUT ? +1 : -1));
1167 volume_set = TRUE;
1168 }
1169 break;
1170
1171 case PA_ALSA_VOLUME_CONSTANT:
1172 volume = e->constant_volume;
1173 volume_set = TRUE;
1174 break;
1175
1176 default:
1177 pa_assert_not_reached();
1178 }
1179
1180 if (volume_set) {
1181 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1182 r = snd_mixer_selem_set_playback_volume_all(me, volume);
1183 else
1184 r = snd_mixer_selem_set_capture_volume_all(me, volume);
1185 } else {
1186 pa_assert(e->volume_use == PA_ALSA_VOLUME_ZERO);
1187 pa_assert(!e->db_fix);
1188
1189 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1190 r = snd_mixer_selem_set_playback_dB_all(me, 0, +1);
1191 else
1192 r = snd_mixer_selem_set_capture_dB_all(me, 0, -1);
1193 }
1194
1195 if (r < 0)
1196 pa_log_warn("Failed to set volume of %s: %s", e->alsa_name, pa_alsa_strerror(errno));
1197
1198 return r;
1199 }
1200
1201 int pa_alsa_path_select(pa_alsa_path *p, pa_alsa_setting *s, snd_mixer_t *m, bool device_is_muted) {
1202 pa_alsa_element *e;
1203 int r = 0;
1204
1205 pa_assert(m);
1206 pa_assert(p);
1207
1208 pa_log_debug("Activating path %s", p->name);
1209 pa_alsa_path_dump(p);
1210
1211 /* First turn on hw mute if available, to avoid noise
1212 * when setting the mixer controls. */
1213 if (p->mute_during_activation) {
1214 PA_LLIST_FOREACH(e, p->elements) {
1215 if (e->switch_use == PA_ALSA_SWITCH_MUTE)
1216 /* If the muting fails here, that's not a critical problem for
1217 * selecting a path, so we ignore the return value.
1218 * element_set_switch() will print a warning anyway, so this
1219 * won't be a silent failure either. */
1220 (void) element_set_switch(e, m, FALSE);
1221 }
1222 }
1223
1224 PA_LLIST_FOREACH(e, p->elements) {
1225
1226 switch (e->switch_use) {
1227 case PA_ALSA_SWITCH_OFF:
1228 r = element_set_switch(e, m, FALSE);
1229 break;
1230
1231 case PA_ALSA_SWITCH_ON:
1232 r = element_set_switch(e, m, TRUE);
1233 break;
1234
1235 case PA_ALSA_SWITCH_MUTE:
1236 case PA_ALSA_SWITCH_IGNORE:
1237 case PA_ALSA_SWITCH_SELECT:
1238 r = 0;
1239 break;
1240 }
1241
1242 if (r < 0)
1243 return -1;
1244
1245 switch (e->volume_use) {
1246 case PA_ALSA_VOLUME_OFF:
1247 case PA_ALSA_VOLUME_ZERO:
1248 case PA_ALSA_VOLUME_CONSTANT:
1249 r = element_set_constant_volume(e, m);
1250 break;
1251
1252 case PA_ALSA_VOLUME_MERGE:
1253 case PA_ALSA_VOLUME_IGNORE:
1254 r = 0;
1255 break;
1256 }
1257
1258 if (r < 0)
1259 return -1;
1260 }
1261
1262 if (s)
1263 setting_select(s, m);
1264
1265 /* Finally restore hw mute to the device mute status. */
1266 if (p->mute_during_activation) {
1267 PA_LLIST_FOREACH(e, p->elements) {
1268 if (e->switch_use == PA_ALSA_SWITCH_MUTE) {
1269 if (element_set_switch(e, m, !device_is_muted) < 0)
1270 return -1;
1271 }
1272 }
1273 }
1274
1275 return 0;
1276 }
1277
1278 static int check_required(pa_alsa_element *e, snd_mixer_elem_t *me) {
1279 pa_bool_t has_switch;
1280 pa_bool_t has_enumeration;
1281 pa_bool_t has_volume;
1282
1283 pa_assert(e);
1284 pa_assert(me);
1285
1286 if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
1287 has_switch =
1288 snd_mixer_selem_has_playback_switch(me) ||
1289 (e->direction_try_other && snd_mixer_selem_has_capture_switch(me));
1290 } else {
1291 has_switch =
1292 snd_mixer_selem_has_capture_switch(me) ||
1293 (e->direction_try_other && snd_mixer_selem_has_playback_switch(me));
1294 }
1295
1296 if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
1297 has_volume =
1298 snd_mixer_selem_has_playback_volume(me) ||
1299 (e->direction_try_other && snd_mixer_selem_has_capture_volume(me));
1300 } else {
1301 has_volume =
1302 snd_mixer_selem_has_capture_volume(me) ||
1303 (e->direction_try_other && snd_mixer_selem_has_playback_volume(me));
1304 }
1305
1306 has_enumeration = snd_mixer_selem_is_enumerated(me);
1307
1308 if ((e->required == PA_ALSA_REQUIRED_SWITCH && !has_switch) ||
1309 (e->required == PA_ALSA_REQUIRED_VOLUME && !has_volume) ||
1310 (e->required == PA_ALSA_REQUIRED_ENUMERATION && !has_enumeration))
1311 return -1;
1312
1313 if (e->required == PA_ALSA_REQUIRED_ANY && !(has_switch || has_volume || has_enumeration))
1314 return -1;
1315
1316 if ((e->required_absent == PA_ALSA_REQUIRED_SWITCH && has_switch) ||
1317 (e->required_absent == PA_ALSA_REQUIRED_VOLUME && has_volume) ||
1318 (e->required_absent == PA_ALSA_REQUIRED_ENUMERATION && has_enumeration))
1319 return -1;
1320
1321 if (e->required_absent == PA_ALSA_REQUIRED_ANY && (has_switch || has_volume || has_enumeration))
1322 return -1;
1323
1324 if (e->required_any != PA_ALSA_REQUIRED_IGNORE) {
1325 switch (e->required_any) {
1326 case PA_ALSA_REQUIRED_VOLUME:
1327 e->path->req_any_present |= (e->volume_use != PA_ALSA_VOLUME_IGNORE);
1328 break;
1329 case PA_ALSA_REQUIRED_SWITCH:
1330 e->path->req_any_present |= (e->switch_use != PA_ALSA_SWITCH_IGNORE);
1331 break;
1332 case PA_ALSA_REQUIRED_ENUMERATION:
1333 e->path->req_any_present |= (e->enumeration_use != PA_ALSA_ENUMERATION_IGNORE);
1334 break;
1335 case PA_ALSA_REQUIRED_ANY:
1336 e->path->req_any_present |=
1337 (e->volume_use != PA_ALSA_VOLUME_IGNORE) ||
1338 (e->switch_use != PA_ALSA_SWITCH_IGNORE) ||
1339 (e->enumeration_use != PA_ALSA_ENUMERATION_IGNORE);
1340 break;
1341 default:
1342 pa_assert_not_reached();
1343 }
1344 }
1345
1346 if (e->enumeration_use == PA_ALSA_ENUMERATION_SELECT) {
1347 pa_alsa_option *o;
1348 PA_LLIST_FOREACH(o, e->options) {
1349 e->path->req_any_present |= (o->required_any != PA_ALSA_REQUIRED_IGNORE) &&
1350 (o->alsa_idx >= 0);
1351 if (o->required != PA_ALSA_REQUIRED_IGNORE && o->alsa_idx < 0)
1352 return -1;
1353 if (o->required_absent != PA_ALSA_REQUIRED_IGNORE && o->alsa_idx >= 0)
1354 return -1;
1355 }
1356 }
1357
1358 return 0;
1359 }
1360
1361 static int element_probe(pa_alsa_element *e, snd_mixer_t *m) {
1362 snd_mixer_selem_id_t *sid;
1363 snd_mixer_elem_t *me;
1364
1365 pa_assert(m);
1366 pa_assert(e);
1367 pa_assert(e->path);
1368
1369 SELEM_INIT(sid, e->alsa_name);
1370
1371 if (!(me = snd_mixer_find_selem(m, sid))) {
1372
1373 if (e->required != PA_ALSA_REQUIRED_IGNORE)
1374 return -1;
1375
1376 e->switch_use = PA_ALSA_SWITCH_IGNORE;
1377 e->volume_use = PA_ALSA_VOLUME_IGNORE;
1378 e->enumeration_use = PA_ALSA_ENUMERATION_IGNORE;
1379
1380 return 0;
1381 }
1382
1383 if (e->switch_use != PA_ALSA_SWITCH_IGNORE) {
1384 if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
1385
1386 if (!snd_mixer_selem_has_playback_switch(me)) {
1387 if (e->direction_try_other && snd_mixer_selem_has_capture_switch(me))
1388 e->direction = PA_ALSA_DIRECTION_INPUT;
1389 else
1390 e->switch_use = PA_ALSA_SWITCH_IGNORE;
1391 }
1392
1393 } else {
1394
1395 if (!snd_mixer_selem_has_capture_switch(me)) {
1396 if (e->direction_try_other && snd_mixer_selem_has_playback_switch(me))
1397 e->direction = PA_ALSA_DIRECTION_OUTPUT;
1398 else
1399 e->switch_use = PA_ALSA_SWITCH_IGNORE;
1400 }
1401 }
1402
1403 if (e->switch_use != PA_ALSA_SWITCH_IGNORE)
1404 e->direction_try_other = FALSE;
1405 }
1406
1407 if (e->volume_use != PA_ALSA_VOLUME_IGNORE) {
1408
1409 if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
1410
1411 if (!snd_mixer_selem_has_playback_volume(me)) {
1412 if (e->direction_try_other && snd_mixer_selem_has_capture_volume(me))
1413 e->direction = PA_ALSA_DIRECTION_INPUT;
1414 else
1415 e->volume_use = PA_ALSA_VOLUME_IGNORE;
1416 }
1417
1418 } else {
1419
1420 if (!snd_mixer_selem_has_capture_volume(me)) {
1421 if (e->direction_try_other && snd_mixer_selem_has_playback_volume(me))
1422 e->direction = PA_ALSA_DIRECTION_OUTPUT;
1423 else
1424 e->volume_use = PA_ALSA_VOLUME_IGNORE;
1425 }
1426 }
1427
1428 if (e->volume_use != PA_ALSA_VOLUME_IGNORE) {
1429 long min_dB = 0, max_dB = 0;
1430 int r;
1431
1432 e->direction_try_other = FALSE;
1433
1434 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1435 r = snd_mixer_selem_get_playback_volume_range(me, &e->min_volume, &e->max_volume);
1436 else
1437 r = snd_mixer_selem_get_capture_volume_range(me, &e->min_volume, &e->max_volume);
1438
1439 if (r < 0) {
1440 pa_log_warn("Failed to get volume range of %s: %s", e->alsa_name, pa_alsa_strerror(r));
1441 return -1;
1442 }
1443
1444 if (e->min_volume >= e->max_volume) {
1445 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);
1446 e->volume_use = PA_ALSA_VOLUME_IGNORE;
1447
1448 } else if (e->volume_use == PA_ALSA_VOLUME_CONSTANT &&
1449 (e->min_volume > e->constant_volume || e->max_volume < e->constant_volume)) {
1450 pa_log_warn("Constant volume %li configured for element %s, but the available range is from %li to %li.",
1451 e->constant_volume, e->alsa_name, e->min_volume, e->max_volume);
1452 e->volume_use = PA_ALSA_VOLUME_IGNORE;
1453
1454 } else {
1455 pa_bool_t is_mono;
1456 pa_channel_position_t p;
1457
1458 if (e->db_fix &&
1459 ((e->min_volume > e->db_fix->min_step) ||
1460 (e->max_volume < e->db_fix->max_step))) {
1461 pa_log_warn("The step range of the decibel fix for element %s (%li-%li) doesn't fit to the "
1462 "real hardware range (%li-%li). Disabling the decibel fix.", e->alsa_name,
1463 e->db_fix->min_step, e->db_fix->max_step,
1464 e->min_volume, e->max_volume);
1465
1466 decibel_fix_free(e->db_fix);
1467 e->db_fix = NULL;
1468 }
1469
1470 if (e->db_fix) {
1471 e->has_dB = TRUE;
1472 e->min_volume = e->db_fix->min_step;
1473 e->max_volume = e->db_fix->max_step;
1474 min_dB = e->db_fix->db_values[0];
1475 max_dB = e->db_fix->db_values[e->db_fix->max_step - e->db_fix->min_step];
1476 } else if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1477 e->has_dB = snd_mixer_selem_get_playback_dB_range(me, &min_dB, &max_dB) >= 0;
1478 else
1479 e->has_dB = snd_mixer_selem_get_capture_dB_range(me, &min_dB, &max_dB) >= 0;
1480
1481 /* Check that the kernel driver returns consistent limits with
1482 * both _get_*_dB_range() and _ask_*_vol_dB(). */
1483 if (e->has_dB && !e->db_fix) {
1484 long min_dB_checked = 0;
1485 long max_dB_checked = 0;
1486
1487 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1488 r = snd_mixer_selem_ask_playback_vol_dB(me, e->min_volume, &min_dB_checked);
1489 else
1490 r = snd_mixer_selem_ask_capture_vol_dB(me, e->min_volume, &min_dB_checked);
1491
1492 if (r < 0) {
1493 pa_log_warn("Failed to query the dB value for %s at volume level %li", e->alsa_name, e->min_volume);
1494 return -1;
1495 }
1496
1497 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1498 r = snd_mixer_selem_ask_playback_vol_dB(me, e->max_volume, &max_dB_checked);
1499 else
1500 r = snd_mixer_selem_ask_capture_vol_dB(me, e->max_volume, &max_dB_checked);
1501
1502 if (r < 0) {
1503 pa_log_warn("Failed to query the dB value for %s at volume level %li", e->alsa_name, e->max_volume);
1504 return -1;
1505 }
1506
1507 if (min_dB != min_dB_checked || max_dB != max_dB_checked) {
1508 pa_log_warn("Your kernel driver is broken: the reported dB range for %s (from %0.2f dB to %0.2f dB) "
1509 "doesn't match the dB values at minimum and maximum volume levels: %0.2f dB at level %li, "
1510 "%0.2f dB at level %li.",
1511 e->alsa_name,
1512 min_dB / 100.0, max_dB / 100.0,
1513 min_dB_checked / 100.0, e->min_volume, max_dB_checked / 100.0, e->max_volume);
1514 return -1;
1515 }
1516 }
1517
1518 if (e->has_dB) {
1519 #ifdef HAVE_VALGRIND_MEMCHECK_H
1520 VALGRIND_MAKE_MEM_DEFINED(&min_dB, sizeof(min_dB));
1521 VALGRIND_MAKE_MEM_DEFINED(&max_dB, sizeof(max_dB));
1522 #endif
1523
1524 e->min_dB = ((double) min_dB) / 100.0;
1525 e->max_dB = ((double) max_dB) / 100.0;
1526
1527 if (min_dB >= max_dB) {
1528 pa_assert(!e->db_fix);
1529 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);
1530 e->has_dB = FALSE;
1531 }
1532 }
1533
1534 if (e->volume_limit >= 0) {
1535 if (e->volume_limit <= e->min_volume || e->volume_limit > e->max_volume)
1536 pa_log_warn("Volume limit for element %s of path %s is invalid: %li isn't within the valid range "
1537 "%li-%li. The volume limit is ignored.",
1538 e->alsa_name, e->path->name, e->volume_limit, e->min_volume + 1, e->max_volume);
1539
1540 else {
1541 e->max_volume = e->volume_limit;
1542
1543 if (e->has_dB) {
1544 if (e->db_fix) {
1545 e->db_fix->max_step = e->max_volume;
1546 e->max_dB = ((double) e->db_fix->db_values[e->db_fix->max_step - e->db_fix->min_step]) / 100.0;
1547
1548 } else {
1549 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1550 r = snd_mixer_selem_ask_playback_vol_dB(me, e->max_volume, &max_dB);
1551 else
1552 r = snd_mixer_selem_ask_capture_vol_dB(me, e->max_volume, &max_dB);
1553
1554 if (r < 0) {
1555 pa_log_warn("Failed to get dB value of %s: %s", e->alsa_name, pa_alsa_strerror(r));
1556 e->has_dB = FALSE;
1557 } else
1558 e->max_dB = ((double) max_dB) / 100.0;
1559 }
1560 }
1561 }
1562 }
1563
1564 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1565 is_mono = snd_mixer_selem_is_playback_mono(me) > 0;
1566 else
1567 is_mono = snd_mixer_selem_is_capture_mono(me) > 0;
1568
1569 if (is_mono) {
1570 e->n_channels = 1;
1571
1572 if (!e->override_map) {
1573 for (p = PA_CHANNEL_POSITION_FRONT_LEFT; p < PA_CHANNEL_POSITION_MAX; p++) {
1574 if (alsa_channel_ids[p] == SND_MIXER_SCHN_UNKNOWN)
1575 continue;
1576
1577 e->masks[alsa_channel_ids[p]][e->n_channels-1] = 0;
1578 }
1579
1580 e->masks[SND_MIXER_SCHN_MONO][e->n_channels-1] = PA_CHANNEL_POSITION_MASK_ALL;
1581 }
1582
1583 e->merged_mask = e->masks[SND_MIXER_SCHN_MONO][e->n_channels-1];
1584 } else {
1585 e->n_channels = 0;
1586 for (p = PA_CHANNEL_POSITION_FRONT_LEFT; p < PA_CHANNEL_POSITION_MAX; p++) {
1587
1588 if (alsa_channel_ids[p] == SND_MIXER_SCHN_UNKNOWN)
1589 continue;
1590
1591 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1592 e->n_channels += snd_mixer_selem_has_playback_channel(me, alsa_channel_ids[p]) > 0;
1593 else
1594 e->n_channels += snd_mixer_selem_has_capture_channel(me, alsa_channel_ids[p]) > 0;
1595 }
1596
1597 if (e->n_channels <= 0) {
1598 pa_log_warn("Volume element %s with no channels?", e->alsa_name);
1599 return -1;
1600 }
1601
1602 if (e->n_channels > 2) {
1603 /* FIXME: In some places code like this is used:
1604 *
1605 * e->masks[alsa_channel_ids[p]][e->n_channels-1]
1606 *
1607 * The definition of e->masks is
1608 *
1609 * pa_channel_position_mask_t masks[SND_MIXER_SCHN_LAST + 1][2];
1610 *
1611 * Since the array size is fixed at 2, we obviously
1612 * don't support elements with more than two
1613 * channels... */
1614 pa_log_warn("Volume element %s has %u channels. That's too much! I can't handle that!", e->alsa_name, e->n_channels);
1615 return -1;
1616 }
1617
1618 if (!e->override_map) {
1619 for (p = PA_CHANNEL_POSITION_FRONT_LEFT; p < PA_CHANNEL_POSITION_MAX; p++) {
1620 pa_bool_t has_channel;
1621
1622 if (alsa_channel_ids[p] == SND_MIXER_SCHN_UNKNOWN)
1623 continue;
1624
1625 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1626 has_channel = snd_mixer_selem_has_playback_channel(me, alsa_channel_ids[p]) > 0;
1627 else
1628 has_channel = snd_mixer_selem_has_capture_channel(me, alsa_channel_ids[p]) > 0;
1629
1630 e->masks[alsa_channel_ids[p]][e->n_channels-1] = has_channel ? PA_CHANNEL_POSITION_MASK(p) : 0;
1631 }
1632 }
1633
1634 e->merged_mask = 0;
1635 for (p = PA_CHANNEL_POSITION_FRONT_LEFT; p < PA_CHANNEL_POSITION_MAX; p++) {
1636 if (alsa_channel_ids[p] == SND_MIXER_SCHN_UNKNOWN)
1637 continue;
1638
1639 e->merged_mask |= e->masks[alsa_channel_ids[p]][e->n_channels-1];
1640 }
1641 }
1642 }
1643 }
1644
1645 }
1646
1647 if (e->switch_use == PA_ALSA_SWITCH_SELECT) {
1648 pa_alsa_option *o;
1649
1650 PA_LLIST_FOREACH(o, e->options)
1651 o->alsa_idx = pa_streq(o->alsa_name, "on") ? 1 : 0;
1652 } else if (e->enumeration_use == PA_ALSA_ENUMERATION_SELECT) {
1653 int n;
1654 pa_alsa_option *o;
1655
1656 if ((n = snd_mixer_selem_get_enum_items(me)) < 0) {
1657 pa_log("snd_mixer_selem_get_enum_items() failed: %s", pa_alsa_strerror(n));
1658 return -1;
1659 }
1660
1661 PA_LLIST_FOREACH(o, e->options) {
1662 int i;
1663
1664 for (i = 0; i < n; i++) {
1665 char buf[128];
1666
1667 if (snd_mixer_selem_get_enum_item_name(me, i, sizeof(buf), buf) < 0)
1668 continue;
1669
1670 if (!pa_streq(buf, o->alsa_name))
1671 continue;
1672
1673 o->alsa_idx = i;
1674 }
1675 }
1676 }
1677
1678 if (check_required(e, me) < 0)
1679 return -1;
1680
1681 return 0;
1682 }
1683
1684 static int jack_probe(pa_alsa_jack *j, snd_hctl_t *h) {
1685 pa_assert(h);
1686 pa_assert(j);
1687 pa_assert(j->path);
1688
1689 j->has_control = pa_alsa_find_jack(h, j->alsa_name) != NULL;
1690
1691 if (j->has_control) {
1692 if (j->required_absent != PA_ALSA_REQUIRED_IGNORE)
1693 return -1;
1694 if (j->required_any != PA_ALSA_REQUIRED_IGNORE)
1695 j->path->req_any_present = TRUE;
1696 } else {
1697 if (j->required != PA_ALSA_REQUIRED_IGNORE)
1698 return -1;
1699 }
1700
1701 return 0;
1702 }
1703
1704 static pa_alsa_element* element_get(pa_alsa_path *p, const char *section, pa_bool_t prefixed) {
1705 pa_alsa_element *e;
1706
1707 pa_assert(p);
1708 pa_assert(section);
1709
1710 if (prefixed) {
1711 if (!pa_startswith(section, "Element "))
1712 return NULL;
1713
1714 section += 8;
1715 }
1716
1717 /* This is not an element section, but an enum section? */
1718 if (strchr(section, ':'))
1719 return NULL;
1720
1721 if (p->last_element && pa_streq(p->last_element->alsa_name, section))
1722 return p->last_element;
1723
1724 PA_LLIST_FOREACH(e, p->elements)
1725 if (pa_streq(e->alsa_name, section))
1726 goto finish;
1727
1728 e = pa_xnew0(pa_alsa_element, 1);
1729 e->path = p;
1730 e->alsa_name = pa_xstrdup(section);
1731 e->direction = p->direction;
1732 e->volume_limit = -1;
1733
1734 PA_LLIST_INSERT_AFTER(pa_alsa_element, p->elements, p->last_element, e);
1735
1736 finish:
1737 p->last_element = e;
1738 return e;
1739 }
1740
1741 static pa_alsa_jack* jack_get(pa_alsa_path *p, const char *section) {
1742 pa_alsa_jack *j;
1743
1744 if (!pa_startswith(section, "Jack "))
1745 return NULL;
1746 section += 5;
1747
1748 if (p->last_jack && pa_streq(p->last_jack->name, section))
1749 return p->last_jack;
1750
1751 PA_LLIST_FOREACH(j, p->jacks)
1752 if (pa_streq(j->name, section))
1753 goto finish;
1754
1755 j = pa_xnew0(pa_alsa_jack, 1);
1756 j->state_unplugged = PA_PORT_AVAILABLE_NO;
1757 j->state_plugged = PA_PORT_AVAILABLE_YES;
1758 j->path = p;
1759 j->name = pa_xstrdup(section);
1760 j->alsa_name = pa_sprintf_malloc("%s Jack", section);
1761 PA_LLIST_INSERT_AFTER(pa_alsa_jack, p->jacks, p->last_jack, j);
1762
1763 finish:
1764 p->last_jack = j;
1765 return j;
1766 }
1767
1768
1769 static pa_alsa_option* option_get(pa_alsa_path *p, const char *section) {
1770 char *en;
1771 const char *on;
1772 pa_alsa_option *o;
1773 pa_alsa_element *e;
1774
1775 if (!pa_startswith(section, "Option "))
1776 return NULL;
1777
1778 section += 7;
1779
1780 /* This is not an enum section, but an element section? */
1781 if (!(on = strchr(section, ':')))
1782 return NULL;
1783
1784 en = pa_xstrndup(section, on - section);
1785 on++;
1786
1787 if (p->last_option &&
1788 pa_streq(p->last_option->element->alsa_name, en) &&
1789 pa_streq(p->last_option->alsa_name, on)) {
1790 pa_xfree(en);
1791 return p->last_option;
1792 }
1793
1794 pa_assert_se(e = element_get(p, en, FALSE));
1795 pa_xfree(en);
1796
1797 PA_LLIST_FOREACH(o, e->options)
1798 if (pa_streq(o->alsa_name, on))
1799 goto finish;
1800
1801 o = pa_xnew0(pa_alsa_option, 1);
1802 o->element = e;
1803 o->alsa_name = pa_xstrdup(on);
1804 o->alsa_idx = -1;
1805
1806 if (p->last_option && p->last_option->element == e)
1807 PA_LLIST_INSERT_AFTER(pa_alsa_option, e->options, p->last_option, o);
1808 else
1809 PA_LLIST_PREPEND(pa_alsa_option, e->options, o);
1810
1811 finish:
1812 p->last_option = o;
1813 return o;
1814 }
1815
1816 static int element_parse_switch(pa_config_parser_state *state) {
1817 pa_alsa_path *p;
1818 pa_alsa_element *e;
1819
1820 pa_assert(state);
1821
1822 p = state->userdata;
1823
1824 if (!(e = element_get(p, state->section, TRUE))) {
1825 pa_log("[%s:%u] Switch makes no sense in '%s'", state->filename, state->lineno, state->section);
1826 return -1;
1827 }
1828
1829 if (pa_streq(state->rvalue, "ignore"))
1830 e->switch_use = PA_ALSA_SWITCH_IGNORE;
1831 else if (pa_streq(state->rvalue, "mute"))
1832 e->switch_use = PA_ALSA_SWITCH_MUTE;
1833 else if (pa_streq(state->rvalue, "off"))
1834 e->switch_use = PA_ALSA_SWITCH_OFF;
1835 else if (pa_streq(state->rvalue, "on"))
1836 e->switch_use = PA_ALSA_SWITCH_ON;
1837 else if (pa_streq(state->rvalue, "select"))
1838 e->switch_use = PA_ALSA_SWITCH_SELECT;
1839 else {
1840 pa_log("[%s:%u] Switch invalid of '%s'", state->filename, state->lineno, state->section);
1841 return -1;
1842 }
1843
1844 return 0;
1845 }
1846
1847 static int element_parse_volume(pa_config_parser_state *state) {
1848 pa_alsa_path *p;
1849 pa_alsa_element *e;
1850
1851 pa_assert(state);
1852
1853 p = state->userdata;
1854
1855 if (!(e = element_get(p, state->section, TRUE))) {
1856 pa_log("[%s:%u] Volume makes no sense in '%s'", state->filename, state->lineno, state->section);
1857 return -1;
1858 }
1859
1860 if (pa_streq(state->rvalue, "ignore"))
1861 e->volume_use = PA_ALSA_VOLUME_IGNORE;
1862 else if (pa_streq(state->rvalue, "merge"))
1863 e->volume_use = PA_ALSA_VOLUME_MERGE;
1864 else if (pa_streq(state->rvalue, "off"))
1865 e->volume_use = PA_ALSA_VOLUME_OFF;
1866 else if (pa_streq(state->rvalue, "zero"))
1867 e->volume_use = PA_ALSA_VOLUME_ZERO;
1868 else {
1869 uint32_t constant;
1870
1871 if (pa_atou(state->rvalue, &constant) >= 0) {
1872 e->volume_use = PA_ALSA_VOLUME_CONSTANT;
1873 e->constant_volume = constant;
1874 } else {
1875 pa_log("[%s:%u] Volume invalid of '%s'", state->filename, state->lineno, state->section);
1876 return -1;
1877 }
1878 }
1879
1880 return 0;
1881 }
1882
1883 static int element_parse_enumeration(pa_config_parser_state *state) {
1884 pa_alsa_path *p;
1885 pa_alsa_element *e;
1886
1887 pa_assert(state);
1888
1889 p = state->userdata;
1890
1891 if (!(e = element_get(p, state->section, TRUE))) {
1892 pa_log("[%s:%u] Enumeration makes no sense in '%s'", state->filename, state->lineno, state->section);
1893 return -1;
1894 }
1895
1896 if (pa_streq(state->rvalue, "ignore"))
1897 e->enumeration_use = PA_ALSA_ENUMERATION_IGNORE;
1898 else if (pa_streq(state->rvalue, "select"))
1899 e->enumeration_use = PA_ALSA_ENUMERATION_SELECT;
1900 else {
1901 pa_log("[%s:%u] Enumeration invalid of '%s'", state->filename, state->lineno, state->section);
1902 return -1;
1903 }
1904
1905 return 0;
1906 }
1907
1908 static int option_parse_priority(pa_config_parser_state *state) {
1909 pa_alsa_path *p;
1910 pa_alsa_option *o;
1911 uint32_t prio;
1912
1913 pa_assert(state);
1914
1915 p = state->userdata;
1916
1917 if (!(o = option_get(p, state->section))) {
1918 pa_log("[%s:%u] Priority makes no sense in '%s'", state->filename, state->lineno, state->section);
1919 return -1;
1920 }
1921
1922 if (pa_atou(state->rvalue, &prio) < 0) {
1923 pa_log("[%s:%u] Priority invalid of '%s'", state->filename, state->lineno, state->section);
1924 return -1;
1925 }
1926
1927 o->priority = prio;
1928 return 0;
1929 }
1930
1931 static int option_parse_name(pa_config_parser_state *state) {
1932 pa_alsa_path *p;
1933 pa_alsa_option *o;
1934
1935 pa_assert(state);
1936
1937 p = state->userdata;
1938
1939 if (!(o = option_get(p, state->section))) {
1940 pa_log("[%s:%u] Name makes no sense in '%s'", state->filename, state->lineno, state->section);
1941 return -1;
1942 }
1943
1944 pa_xfree(o->name);
1945 o->name = pa_xstrdup(state->rvalue);
1946
1947 return 0;
1948 }
1949
1950 static int element_parse_required(pa_config_parser_state *state) {
1951 pa_alsa_path *p;
1952 pa_alsa_element *e;
1953 pa_alsa_option *o;
1954 pa_alsa_jack *j;
1955 pa_alsa_required_t req;
1956
1957 pa_assert(state);
1958
1959 p = state->userdata;
1960
1961 e = element_get(p, state->section, TRUE);
1962 o = option_get(p, state->section);
1963 j = jack_get(p, state->section);
1964 if (!e && !o && !j) {
1965 pa_log("[%s:%u] Required makes no sense in '%s'", state->filename, state->lineno, state->section);
1966 return -1;
1967 }
1968
1969 if (pa_streq(state->rvalue, "ignore"))
1970 req = PA_ALSA_REQUIRED_IGNORE;
1971 else if (pa_streq(state->rvalue, "switch") && e)
1972 req = PA_ALSA_REQUIRED_SWITCH;
1973 else if (pa_streq(state->rvalue, "volume") && e)
1974 req = PA_ALSA_REQUIRED_VOLUME;
1975 else if (pa_streq(state->rvalue, "enumeration"))
1976 req = PA_ALSA_REQUIRED_ENUMERATION;
1977 else if (pa_streq(state->rvalue, "any"))
1978 req = PA_ALSA_REQUIRED_ANY;
1979 else {
1980 pa_log("[%s:%u] Required invalid of '%s'", state->filename, state->lineno, state->section);
1981 return -1;
1982 }
1983
1984 if (pa_streq(state->lvalue, "required-absent")) {
1985 if (e)
1986 e->required_absent = req;
1987 if (o)
1988 o->required_absent = req;
1989 if (j)
1990 j->required_absent = req;
1991 }
1992 else if (pa_streq(state->lvalue, "required-any")) {
1993 if (e) {
1994 e->required_any = req;
1995 e->path->has_req_any |= (req != PA_ALSA_REQUIRED_IGNORE);
1996 }
1997 if (o) {
1998 o->required_any = req;
1999 o->element->path->has_req_any |= (req != PA_ALSA_REQUIRED_IGNORE);
2000 }
2001 if (j) {
2002 j->required_any = req;
2003 j->path->has_req_any |= (req != PA_ALSA_REQUIRED_IGNORE);
2004 }
2005
2006 }
2007 else {
2008 if (e)
2009 e->required = req;
2010 if (o)
2011 o->required = req;
2012 if (j)
2013 j->required = req;
2014 }
2015
2016 return 0;
2017 }
2018
2019 static int element_parse_direction(pa_config_parser_state *state) {
2020 pa_alsa_path *p;
2021 pa_alsa_element *e;
2022
2023 pa_assert(state);
2024
2025 p = state->userdata;
2026
2027 if (!(e = element_get(p, state->section, TRUE))) {
2028 pa_log("[%s:%u] Direction makes no sense in '%s'", state->filename, state->lineno, state->section);
2029 return -1;
2030 }
2031
2032 if (pa_streq(state->rvalue, "playback"))
2033 e->direction = PA_ALSA_DIRECTION_OUTPUT;
2034 else if (pa_streq(state->rvalue, "capture"))
2035 e->direction = PA_ALSA_DIRECTION_INPUT;
2036 else {
2037 pa_log("[%s:%u] Direction invalid of '%s'", state->filename, state->lineno, state->section);
2038 return -1;
2039 }
2040
2041 return 0;
2042 }
2043
2044 static int element_parse_direction_try_other(pa_config_parser_state *state) {
2045 pa_alsa_path *p;
2046 pa_alsa_element *e;
2047 int yes;
2048
2049 pa_assert(state);
2050
2051 p = state->userdata;
2052
2053 if (!(e = element_get(p, state->section, TRUE))) {
2054 pa_log("[%s:%u] Direction makes no sense in '%s'", state->filename, state->lineno, state->section);
2055 return -1;
2056 }
2057
2058 if ((yes = pa_parse_boolean(state->rvalue)) < 0) {
2059 pa_log("[%s:%u] Direction invalid of '%s'", state->filename, state->lineno, state->section);
2060 return -1;
2061 }
2062
2063 e->direction_try_other = !!yes;
2064 return 0;
2065 }
2066
2067 static int element_parse_volume_limit(pa_config_parser_state *state) {
2068 pa_alsa_path *p;
2069 pa_alsa_element *e;
2070 long volume_limit;
2071
2072 pa_assert(state);
2073
2074 p = state->userdata;
2075
2076 if (!(e = element_get(p, state->section, TRUE))) {
2077 pa_log("[%s:%u] volume-limit makes no sense in '%s'", state->filename, state->lineno, state->section);
2078 return -1;
2079 }
2080
2081 if (pa_atol(state->rvalue, &volume_limit) < 0 || volume_limit < 0) {
2082 pa_log("[%s:%u] Invalid value for volume-limit", state->filename, state->lineno);
2083 return -1;
2084 }
2085
2086 e->volume_limit = volume_limit;
2087 return 0;
2088 }
2089
2090 static pa_channel_position_mask_t parse_mask(const char *m) {
2091 pa_channel_position_mask_t v;
2092
2093 if (pa_streq(m, "all-left"))
2094 v = PA_CHANNEL_POSITION_MASK_LEFT;
2095 else if (pa_streq(m, "all-right"))
2096 v = PA_CHANNEL_POSITION_MASK_RIGHT;
2097 else if (pa_streq(m, "all-center"))
2098 v = PA_CHANNEL_POSITION_MASK_CENTER;
2099 else if (pa_streq(m, "all-front"))
2100 v = PA_CHANNEL_POSITION_MASK_FRONT;
2101 else if (pa_streq(m, "all-rear"))
2102 v = PA_CHANNEL_POSITION_MASK_REAR;
2103 else if (pa_streq(m, "all-side"))
2104 v = PA_CHANNEL_POSITION_MASK_SIDE_OR_TOP_CENTER;
2105 else if (pa_streq(m, "all-top"))
2106 v = PA_CHANNEL_POSITION_MASK_TOP;
2107 else if (pa_streq(m, "all-no-lfe"))
2108 v = PA_CHANNEL_POSITION_MASK_ALL ^ PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_LFE);
2109 else if (pa_streq(m, "all"))
2110 v = PA_CHANNEL_POSITION_MASK_ALL;
2111 else {
2112 pa_channel_position_t p;
2113
2114 if ((p = pa_channel_position_from_string(m)) == PA_CHANNEL_POSITION_INVALID)
2115 return 0;
2116
2117 v = PA_CHANNEL_POSITION_MASK(p);
2118 }
2119
2120 return v;
2121 }
2122
2123 static int element_parse_override_map(pa_config_parser_state *state) {
2124 pa_alsa_path *p;
2125 pa_alsa_element *e;
2126 const char *split_state = NULL;
2127 unsigned i = 0;
2128 char *n;
2129
2130 pa_assert(state);
2131
2132 p = state->userdata;
2133
2134 if (!(e = element_get(p, state->section, TRUE))) {
2135 pa_log("[%s:%u] Override map makes no sense in '%s'", state->filename, state->lineno, state->section);
2136 return -1;
2137 }
2138
2139 while ((n = pa_split(state->rvalue, ",", &split_state))) {
2140 pa_channel_position_mask_t m;
2141
2142 if (!*n)
2143 m = 0;
2144 else {
2145 if ((m = parse_mask(n)) == 0) {
2146 pa_log("[%s:%u] Override map '%s' invalid in '%s'", state->filename, state->lineno, n, state->section);
2147 pa_xfree(n);
2148 return -1;
2149 }
2150 }
2151
2152 if (pa_streq(state->lvalue, "override-map.1"))
2153 e->masks[i++][0] = m;
2154 else
2155 e->masks[i++][1] = m;
2156
2157 /* Later on we might add override-map.3 and so on here ... */
2158
2159 pa_xfree(n);
2160 }
2161
2162 e->override_map = TRUE;
2163
2164 return 0;
2165 }
2166
2167 static int jack_parse_state(pa_config_parser_state *state) {
2168 pa_alsa_path *p;
2169 pa_alsa_jack *j;
2170 pa_port_available_t pa;
2171
2172 pa_assert(state);
2173
2174 p = state->userdata;
2175
2176 if (!(j = jack_get(p, state->section))) {
2177 pa_log("[%s:%u] state makes no sense in '%s'", state->filename, state->lineno, state->section);
2178 return -1;
2179 }
2180
2181 if (pa_streq(state->rvalue, "yes"))
2182 pa = PA_PORT_AVAILABLE_YES;
2183 else if (pa_streq(state->rvalue, "no"))
2184 pa = PA_PORT_AVAILABLE_NO;
2185 else if (pa_streq(state->rvalue, "unknown"))
2186 pa = PA_PORT_AVAILABLE_UNKNOWN;
2187 else {
2188 pa_log("[%s:%u] state must be 'yes', 'no' or 'unknown' in '%s'", state->filename, state->lineno, state->section);
2189 return -1;
2190 }
2191
2192 if (pa_streq(state->lvalue, "state.unplugged"))
2193 j->state_unplugged = pa;
2194 else {
2195 j->state_plugged = pa;
2196 pa_assert(pa_streq(state->lvalue, "state.plugged"));
2197 }
2198
2199 return 0;
2200 }
2201
2202 static int element_set_option(pa_alsa_element *e, snd_mixer_t *m, int alsa_idx) {
2203 snd_mixer_selem_id_t *sid;
2204 snd_mixer_elem_t *me;
2205 int r;
2206
2207 pa_assert(e);
2208 pa_assert(m);
2209
2210 SELEM_INIT(sid, e->alsa_name);
2211 if (!(me = snd_mixer_find_selem(m, sid))) {
2212 pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
2213 return -1;
2214 }
2215
2216 if (e->switch_use == PA_ALSA_SWITCH_SELECT) {
2217
2218 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
2219 r = snd_mixer_selem_set_playback_switch_all(me, alsa_idx);
2220 else
2221 r = snd_mixer_selem_set_capture_switch_all(me, alsa_idx);
2222
2223 if (r < 0)
2224 pa_log_warn("Failed to set switch of %s: %s", e->alsa_name, pa_alsa_strerror(errno));
2225
2226 } else {
2227 pa_assert(e->enumeration_use == PA_ALSA_ENUMERATION_SELECT);
2228
2229 if ((r = snd_mixer_selem_set_enum_item(me, 0, alsa_idx)) < 0)
2230 pa_log_warn("Failed to set enumeration of %s: %s", e->alsa_name, pa_alsa_strerror(errno));
2231 }
2232
2233 return r;
2234 }
2235
2236 static int setting_select(pa_alsa_setting *s, snd_mixer_t *m) {
2237 pa_alsa_option *o;
2238 uint32_t idx;
2239
2240 pa_assert(s);
2241 pa_assert(m);
2242
2243 PA_IDXSET_FOREACH(o, s->options, idx)
2244 element_set_option(o->element, m, o->alsa_idx);
2245
2246 return 0;
2247 }
2248
2249 static int option_verify(pa_alsa_option *o) {
2250 static const struct description_map well_known_descriptions[] = {
2251 { "input", N_("Input") },
2252 { "input-docking", N_("Docking Station Input") },
2253 { "input-docking-microphone", N_("Docking Station Microphone") },
2254 { "input-docking-linein", N_("Docking Station Line In") },
2255 { "input-linein", N_("Line In") },
2256 { "input-microphone", N_("Microphone") },
2257 { "input-microphone-front", N_("Front Microphone") },
2258 { "input-microphone-rear", N_("Rear Microphone") },
2259 { "input-microphone-external", N_("External Microphone") },
2260 { "input-microphone-internal", N_("Internal Microphone") },
2261 { "input-radio", N_("Radio") },
2262 { "input-video", N_("Video") },
2263 { "input-agc-on", N_("Automatic Gain Control") },
2264 { "input-agc-off", N_("No Automatic Gain Control") },
2265 { "input-boost-on", N_("Boost") },
2266 { "input-boost-off", N_("No Boost") },
2267 { "output-amplifier-on", N_("Amplifier") },
2268 { "output-amplifier-off", N_("No Amplifier") },
2269 { "output-bass-boost-on", N_("Bass Boost") },
2270 { "output-bass-boost-off", N_("No Bass Boost") },
2271 { "output-speaker", N_("Speaker") },
2272 { "output-headphones", N_("Headphones") }
2273 };
2274
2275 pa_assert(o);
2276
2277 if (!o->name) {
2278 pa_log("No name set for option %s", o->alsa_name);
2279 return -1;
2280 }
2281
2282 if (o->element->enumeration_use != PA_ALSA_ENUMERATION_SELECT &&
2283 o->element->switch_use != PA_ALSA_SWITCH_SELECT) {
2284 pa_log("Element %s of option %s not set for select.", o->element->alsa_name, o->name);
2285 return -1;
2286 }
2287
2288 if (o->element->switch_use == PA_ALSA_SWITCH_SELECT &&
2289 !pa_streq(o->alsa_name, "on") &&
2290 !pa_streq(o->alsa_name, "off")) {
2291 pa_log("Switch %s options need be named off or on ", o->element->alsa_name);
2292 return -1;
2293 }
2294
2295 if (!o->description)
2296 o->description = pa_xstrdup(lookup_description(o->name,
2297 well_known_descriptions,
2298 PA_ELEMENTSOF(well_known_descriptions)));
2299 if (!o->description)
2300 o->description = pa_xstrdup(o->name);
2301
2302 return 0;
2303 }
2304
2305 static int element_verify(pa_alsa_element *e) {
2306 pa_alsa_option *o;
2307
2308 pa_assert(e);
2309
2310 // pa_log_debug("Element %s, path %s: r=%d, r-any=%d, r-abs=%d", e->alsa_name, e->path->name, e->required, e->required_any, e->required_absent);
2311 if ((e->required != PA_ALSA_REQUIRED_IGNORE && e->required == e->required_absent) ||
2312 (e->required_any != PA_ALSA_REQUIRED_IGNORE && e->required_any == e->required_absent) ||
2313 (e->required_absent == PA_ALSA_REQUIRED_ANY && e->required_any != PA_ALSA_REQUIRED_IGNORE) ||
2314 (e->required_absent == PA_ALSA_REQUIRED_ANY && e->required != PA_ALSA_REQUIRED_IGNORE)) {
2315 pa_log("Element %s cannot be required and absent at the same time.", e->alsa_name);
2316 return -1;
2317 }
2318
2319 if (e->switch_use == PA_ALSA_SWITCH_SELECT && e->enumeration_use == PA_ALSA_ENUMERATION_SELECT) {
2320 pa_log("Element %s cannot set select for both switch and enumeration.", e->alsa_name);
2321 return -1;
2322 }
2323
2324 PA_LLIST_FOREACH(o, e->options)
2325 if (option_verify(o) < 0)
2326 return -1;
2327
2328 return 0;
2329 }
2330
2331 static int path_verify(pa_alsa_path *p) {
2332 static const struct description_map well_known_descriptions[] = {
2333 { "analog-input", N_("Analog Input") },
2334 { "analog-input-microphone", N_("Microphone") },
2335 { "analog-input-microphone-front", N_("Front Microphone") },
2336 { "analog-input-microphone-rear", N_("Rear Microphone") },
2337 { "analog-input-microphone-dock", N_("Dock Microphone") },
2338 { "analog-input-microphone-internal", N_("Internal Microphone") },
2339 { "analog-input-linein", N_("Line In") },
2340 { "analog-input-radio", N_("Radio") },
2341 { "analog-input-video", N_("Video") },
2342 { "analog-output", N_("Analog Output") },
2343 { "analog-output-headphones", N_("Headphones") },
2344 { "analog-output-lfe-on-mono", N_("LFE on Separate Mono Output") },
2345 { "analog-output-lineout", N_("Line Out") },
2346 { "analog-output-mono", N_("Analog Mono Output") },
2347 { "analog-output-speaker", N_("Speakers") },
2348 { "hdmi-output", N_("HDMI / DisplayPort") },
2349 { "iec958-stereo-output", N_("Digital Output (S/PDIF)") },
2350 { "iec958-passthrough-output", N_("Digital Passthrough (S/PDIF)") }
2351 };
2352
2353 pa_alsa_element *e;
2354
2355 pa_assert(p);
2356
2357 PA_LLIST_FOREACH(e, p->elements)
2358 if (element_verify(e) < 0)
2359 return -1;
2360
2361 if (!p->description)
2362 p->description = pa_xstrdup(lookup_description(p->name,
2363 well_known_descriptions,
2364 PA_ELEMENTSOF(well_known_descriptions)));
2365
2366 if (!p->description)
2367 p->description = pa_xstrdup(p->name);
2368
2369 return 0;
2370 }
2371
2372 static const char *get_default_paths_dir(void) {
2373 if (pa_run_from_build_tree())
2374 return PA_BUILDDIR "/modules/alsa/mixer/paths/";
2375 else
2376 return PA_ALSA_PATHS_DIR;
2377 }
2378
2379 pa_alsa_path* pa_alsa_path_new(const char *paths_dir, const char *fname, pa_alsa_direction_t direction) {
2380 pa_alsa_path *p;
2381 char *fn;
2382 int r;
2383 const char *n;
2384 bool mute_during_activation = false;
2385
2386 pa_config_item items[] = {
2387 /* [General] */
2388 { "priority", pa_config_parse_unsigned, NULL, "General" },
2389 { "description", pa_config_parse_string, NULL, "General" },
2390 { "name", pa_config_parse_string, NULL, "General" },
2391 { "mute-during-activation", pa_config_parse_bool, NULL, "General" },
2392
2393 /* [Option ...] */
2394 { "priority", option_parse_priority, NULL, NULL },
2395 { "name", option_parse_name, NULL, NULL },
2396
2397 /* [Jack ...] */
2398 { "state.plugged", jack_parse_state, NULL, NULL },
2399 { "state.unplugged", jack_parse_state, NULL, NULL },
2400
2401 /* [Element ...] */
2402 { "switch", element_parse_switch, NULL, NULL },
2403 { "volume", element_parse_volume, NULL, NULL },
2404 { "enumeration", element_parse_enumeration, NULL, NULL },
2405 { "override-map.1", element_parse_override_map, NULL, NULL },
2406 { "override-map.2", element_parse_override_map, NULL, NULL },
2407 /* ... later on we might add override-map.3 and so on here ... */
2408 { "required", element_parse_required, NULL, NULL },
2409 { "required-any", element_parse_required, NULL, NULL },
2410 { "required-absent", element_parse_required, NULL, NULL },
2411 { "direction", element_parse_direction, NULL, NULL },
2412 { "direction-try-other", element_parse_direction_try_other, NULL, NULL },
2413 { "volume-limit", element_parse_volume_limit, NULL, NULL },
2414 { NULL, NULL, NULL, NULL }
2415 };
2416
2417 pa_assert(fname);
2418
2419 p = pa_xnew0(pa_alsa_path, 1);
2420 n = pa_path_get_filename(fname);
2421 p->name = pa_xstrndup(n, strcspn(n, "."));
2422 p->proplist = pa_proplist_new();
2423 p->direction = direction;
2424
2425 items[0].data = &p->priority;
2426 items[1].data = &p->description;
2427 items[2].data = &p->name;
2428 items[3].data = &mute_during_activation;
2429
2430 if (!paths_dir)
2431 paths_dir = get_default_paths_dir();
2432
2433 fn = pa_maybe_prefix_path(fname, paths_dir);
2434
2435 r = pa_config_parse(fn, NULL, items, p->proplist, p);
2436 pa_xfree(fn);
2437
2438 if (r < 0)
2439 goto fail;
2440
2441 p->mute_during_activation = mute_during_activation;
2442
2443 if (path_verify(p) < 0)
2444 goto fail;
2445
2446 return p;
2447
2448 fail:
2449 pa_alsa_path_free(p);
2450 return NULL;
2451 }
2452
2453 pa_alsa_path *pa_alsa_path_synthesize(const char *element, pa_alsa_direction_t direction) {
2454 pa_alsa_path *p;
2455 pa_alsa_element *e;
2456
2457 pa_assert(element);
2458
2459 p = pa_xnew0(pa_alsa_path, 1);
2460 p->name = pa_xstrdup(element);
2461 p->direction = direction;
2462
2463 e = pa_xnew0(pa_alsa_element, 1);
2464 e->path = p;
2465 e->alsa_name = pa_xstrdup(element);
2466 e->direction = direction;
2467 e->volume_limit = -1;
2468
2469 e->switch_use = PA_ALSA_SWITCH_MUTE;
2470 e->volume_use = PA_ALSA_VOLUME_MERGE;
2471
2472 PA_LLIST_PREPEND(pa_alsa_element, p->elements, e);
2473 p->last_element = e;
2474 return p;
2475 }
2476
2477 static pa_bool_t element_drop_unsupported(pa_alsa_element *e) {
2478 pa_alsa_option *o, *n;
2479
2480 pa_assert(e);
2481
2482 for (o = e->options; o; o = n) {
2483 n = o->next;
2484
2485 if (o->alsa_idx < 0) {
2486 PA_LLIST_REMOVE(pa_alsa_option, e->options, o);
2487 option_free(o);
2488 }
2489 }
2490
2491 return
2492 e->switch_use != PA_ALSA_SWITCH_IGNORE ||
2493 e->volume_use != PA_ALSA_VOLUME_IGNORE ||
2494 e->enumeration_use != PA_ALSA_ENUMERATION_IGNORE;
2495 }
2496
2497 static void path_drop_unsupported(pa_alsa_path *p) {
2498 pa_alsa_element *e, *n;
2499
2500 pa_assert(p);
2501
2502 for (e = p->elements; e; e = n) {
2503 n = e->next;
2504
2505 if (!element_drop_unsupported(e)) {
2506 PA_LLIST_REMOVE(pa_alsa_element, p->elements, e);
2507 element_free(e);
2508 }
2509 }
2510 }
2511
2512 static void path_make_options_unique(pa_alsa_path *p) {
2513 pa_alsa_element *e;
2514 pa_alsa_option *o, *u;
2515
2516 PA_LLIST_FOREACH(e, p->elements) {
2517 PA_LLIST_FOREACH(o, e->options) {
2518 unsigned i;
2519 char *m;
2520
2521 for (u = o->next; u; u = u->next)
2522 if (pa_streq(u->name, o->name))
2523 break;
2524
2525 if (!u)
2526 continue;
2527
2528 m = pa_xstrdup(o->name);
2529
2530 /* OK, this name is not unique, hence let's rename */
2531 for (i = 1, u = o; u; u = u->next) {
2532 char *nn, *nd;
2533
2534 if (!pa_streq(u->name, m))
2535 continue;
2536
2537 nn = pa_sprintf_malloc("%s-%u", m, i);
2538 pa_xfree(u->name);
2539 u->name = nn;
2540
2541 nd = pa_sprintf_malloc("%s %u", u->description, i);
2542 pa_xfree(u->description);
2543 u->description = nd;
2544
2545 i++;
2546 }
2547
2548 pa_xfree(m);
2549 }
2550 }
2551 }
2552
2553 static pa_bool_t element_create_settings(pa_alsa_element *e, pa_alsa_setting *template) {
2554 pa_alsa_option *o;
2555
2556 for (; e; e = e->next)
2557 if (e->switch_use == PA_ALSA_SWITCH_SELECT ||
2558 e->enumeration_use == PA_ALSA_ENUMERATION_SELECT)
2559 break;
2560
2561 if (!e)
2562 return FALSE;
2563
2564 for (o = e->options; o; o = o->next) {
2565 pa_alsa_setting *s;
2566
2567 if (template) {
2568 s = pa_xnewdup(pa_alsa_setting, template, 1);
2569 s->options = pa_idxset_copy(template->options);
2570 s->name = pa_sprintf_malloc("%s+%s", template->name, o->name);
2571 s->description =
2572 (template->description[0] && o->description[0])
2573 ? pa_sprintf_malloc("%s / %s", template->description, o->description)
2574 : (template->description[0]
2575 ? pa_xstrdup(template->description)
2576 : pa_xstrdup(o->description));
2577
2578 s->priority = PA_MAX(template->priority, o->priority);
2579 } else {
2580 s = pa_xnew0(pa_alsa_setting, 1);
2581 s->options = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
2582 s->name = pa_xstrdup(o->name);
2583 s->description = pa_xstrdup(o->description);
2584 s->priority = o->priority;
2585 }
2586
2587 pa_idxset_put(s->options, o, NULL);
2588
2589 if (element_create_settings(e->next, s))
2590 /* This is not a leaf, so let's get rid of it */
2591 setting_free(s);
2592 else {
2593 /* This is a leaf, so let's add it */
2594 PA_LLIST_INSERT_AFTER(pa_alsa_setting, e->path->settings, e->path->last_setting, s);
2595
2596 e->path->last_setting = s;
2597 }
2598 }
2599
2600 return TRUE;
2601 }
2602
2603 static void path_create_settings(pa_alsa_path *p) {
2604 pa_assert(p);
2605
2606 element_create_settings(p->elements, NULL);
2607 }
2608
2609 int pa_alsa_path_probe(pa_alsa_path *p, snd_mixer_t *m, snd_hctl_t *hctl, pa_bool_t ignore_dB) {
2610 pa_alsa_element *e;
2611 pa_alsa_jack *j;
2612 double min_dB[PA_CHANNEL_POSITION_MAX], max_dB[PA_CHANNEL_POSITION_MAX];
2613 pa_channel_position_t t;
2614 pa_channel_position_mask_t path_volume_channels = 0;
2615
2616 pa_assert(p);
2617 pa_assert(m);
2618
2619 if (p->probed)
2620 return p->supported ? 0 : -1;
2621 p->probed = TRUE;
2622
2623 pa_zero(min_dB);
2624 pa_zero(max_dB);
2625
2626 pa_log_debug("Probing path '%s'", p->name);
2627
2628 PA_LLIST_FOREACH(j, p->jacks) {
2629 if (jack_probe(j, hctl) < 0) {
2630 p->supported = FALSE;
2631 pa_log_debug("Probe of jack '%s' failed.", j->alsa_name);
2632 return -1;
2633 }
2634 pa_log_debug("Probe of jack '%s' succeeded (%s)", j->alsa_name, j->has_control ? "found!" : "not found");
2635 }
2636
2637 PA_LLIST_FOREACH(e, p->elements) {
2638 if (element_probe(e, m) < 0) {
2639 p->supported = FALSE;
2640 pa_log_debug("Probe of element '%s' failed.", e->alsa_name);
2641 return -1;
2642 }
2643 pa_log_debug("Probe of element '%s' succeeded (volume=%d, switch=%d, enumeration=%d).", e->alsa_name, e->volume_use, e->switch_use, e->enumeration_use);
2644
2645 if (ignore_dB)
2646 e->has_dB = FALSE;
2647
2648 if (e->volume_use == PA_ALSA_VOLUME_MERGE) {
2649
2650 if (!p->has_volume) {
2651 p->min_volume = e->min_volume;
2652 p->max_volume = e->max_volume;
2653 }
2654
2655 if (e->has_dB) {
2656 if (!p->has_volume) {
2657 for (t = 0; t < PA_CHANNEL_POSITION_MAX; t++)
2658 if (PA_CHANNEL_POSITION_MASK(t) & e->merged_mask) {
2659 min_dB[t] = e->min_dB;
2660 max_dB[t] = e->max_dB;
2661 path_volume_channels |= PA_CHANNEL_POSITION_MASK(t);
2662 }
2663
2664 p->has_dB = TRUE;
2665 } else {
2666
2667 if (p->has_dB) {
2668 for (t = 0; t < PA_CHANNEL_POSITION_MAX; t++)
2669 if (PA_CHANNEL_POSITION_MASK(t) & e->merged_mask) {
2670 min_dB[t] += e->min_dB;
2671 max_dB[t] += e->max_dB;
2672 path_volume_channels |= PA_CHANNEL_POSITION_MASK(t);
2673 }
2674 } else {
2675 /* Hmm, there's another element before us
2676 * which cannot do dB volumes, so we we need
2677 * to 'neutralize' this slider */
2678 e->volume_use = PA_ALSA_VOLUME_ZERO;
2679 pa_log_info("Zeroing volume of '%s' on path '%s'", e->alsa_name, p->name);
2680 }
2681 }
2682 } else if (p->has_volume) {
2683 /* We can't use this volume, so let's ignore it */
2684 e->volume_use = PA_ALSA_VOLUME_IGNORE;
2685 pa_log_info("Ignoring volume of '%s' on path '%s' (missing dB info)", e->alsa_name, p->name);
2686 }
2687 p->has_volume = TRUE;
2688 }
2689
2690 if (e->switch_use == PA_ALSA_SWITCH_MUTE)
2691 p->has_mute = TRUE;
2692 }
2693
2694 if (p->has_req_any && !p->req_any_present) {
2695 p->supported = FALSE;
2696 pa_log_debug("Skipping path '%s', none of required-any elements preset.", p->name);
2697 return -1;
2698 }
2699
2700 path_drop_unsupported(p);
2701 path_make_options_unique(p);
2702 path_create_settings(p);
2703
2704 p->supported = TRUE;
2705
2706 p->min_dB = INFINITY;
2707 p->max_dB = -INFINITY;
2708
2709 for (t = 0; t < PA_CHANNEL_POSITION_MAX; t++) {
2710 if (path_volume_channels & PA_CHANNEL_POSITION_MASK(t)) {
2711 if (p->min_dB > min_dB[t])
2712 p->min_dB = min_dB[t];
2713
2714 if (p->max_dB < max_dB[t])
2715 p->max_dB = max_dB[t];
2716 }
2717 }
2718
2719 return 0;
2720 }
2721
2722 void pa_alsa_setting_dump(pa_alsa_setting *s) {
2723 pa_assert(s);
2724
2725 pa_log_debug("Setting %s (%s) priority=%u",
2726 s->name,
2727 pa_strnull(s->description),
2728 s->priority);
2729 }
2730
2731 void pa_alsa_jack_dump(pa_alsa_jack *j) {
2732 pa_assert(j);
2733
2734 pa_log_debug("Jack %s, alsa_name='%s', detection %s", j->name, j->alsa_name, j->has_control ? "possible" : "unavailable");
2735 }
2736
2737 void pa_alsa_option_dump(pa_alsa_option *o) {
2738 pa_assert(o);
2739
2740 pa_log_debug("Option %s (%s/%s) index=%i, priority=%u",
2741 o->alsa_name,
2742 pa_strnull(o->name),
2743 pa_strnull(o->description),
2744 o->alsa_idx,
2745 o->priority);
2746 }
2747
2748 void pa_alsa_element_dump(pa_alsa_element *e) {
2749 pa_alsa_option *o;
2750 pa_assert(e);
2751
2752 pa_log_debug("Element %s, direction=%i, switch=%i, volume=%i, volume_limit=%li, enumeration=%i, required=%i, required_any=%i, required_absent=%i, mask=0x%llx, n_channels=%u, override_map=%s",
2753 e->alsa_name,
2754 e->direction,
2755 e->switch_use,
2756 e->volume_use,
2757 e->volume_limit,
2758 e->enumeration_use,
2759 e->required,
2760 e->required_any,
2761 e->required_absent,
2762 (long long unsigned) e->merged_mask,
2763 e->n_channels,
2764 pa_yes_no(e->override_map));
2765
2766 PA_LLIST_FOREACH(o, e->options)
2767 pa_alsa_option_dump(o);
2768 }
2769
2770 void pa_alsa_path_dump(pa_alsa_path *p) {
2771 pa_alsa_element *e;
2772 pa_alsa_jack *j;
2773 pa_alsa_setting *s;
2774 pa_assert(p);
2775
2776 pa_log_debug("Path %s (%s), direction=%i, priority=%u, probed=%s, supported=%s, has_mute=%s, has_volume=%s, "
2777 "has_dB=%s, min_volume=%li, max_volume=%li, min_dB=%g, max_dB=%g",
2778 p->name,
2779 pa_strnull(p->description),
2780 p->direction,
2781 p->priority,
2782 pa_yes_no(p->probed),
2783 pa_yes_no(p->supported),
2784 pa_yes_no(p->has_mute),
2785 pa_yes_no(p->has_volume),
2786 pa_yes_no(p->has_dB),
2787 p->min_volume, p->max_volume,
2788 p->min_dB, p->max_dB);
2789
2790 PA_LLIST_FOREACH(e, p->elements)
2791 pa_alsa_element_dump(e);
2792
2793 PA_LLIST_FOREACH(j, p->jacks)
2794 pa_alsa_jack_dump(j);
2795
2796 PA_LLIST_FOREACH(s, p->settings)
2797 pa_alsa_setting_dump(s);
2798 }
2799
2800 static void element_set_callback(pa_alsa_element *e, snd_mixer_t *m, snd_mixer_elem_callback_t cb, void *userdata) {
2801 snd_mixer_selem_id_t *sid;
2802 snd_mixer_elem_t *me;
2803
2804 pa_assert(e);
2805 pa_assert(m);
2806 pa_assert(cb);
2807
2808 SELEM_INIT(sid, e->alsa_name);
2809 if (!(me = snd_mixer_find_selem(m, sid))) {
2810 pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
2811 return;
2812 }
2813
2814 snd_mixer_elem_set_callback(me, cb);
2815 snd_mixer_elem_set_callback_private(me, userdata);
2816 }
2817
2818 void pa_alsa_path_set_callback(pa_alsa_path *p, snd_mixer_t *m, snd_mixer_elem_callback_t cb, void *userdata) {
2819 pa_alsa_element *e;
2820
2821 pa_assert(p);
2822 pa_assert(m);
2823 pa_assert(cb);
2824
2825 PA_LLIST_FOREACH(e, p->elements)
2826 element_set_callback(e, m, cb, userdata);
2827 }
2828
2829 void pa_alsa_path_set_set_callback(pa_alsa_path_set *ps, snd_mixer_t *m, snd_mixer_elem_callback_t cb, void *userdata) {
2830 pa_alsa_path *p;
2831 void *state;
2832
2833 pa_assert(ps);
2834 pa_assert(m);
2835 pa_assert(cb);
2836
2837 PA_HASHMAP_FOREACH(p, ps->paths, state)
2838 pa_alsa_path_set_callback(p, m, cb, userdata);
2839 }
2840
2841 pa_alsa_path_set *pa_alsa_path_set_new(pa_alsa_mapping *m, pa_alsa_direction_t direction, const char *paths_dir) {
2842 pa_alsa_path_set *ps;
2843 char **pn = NULL, **en = NULL, **ie;
2844 pa_alsa_decibel_fix *db_fix;
2845 void *state, *state2;
2846 pa_hashmap *cache;
2847
2848 pa_assert(m);
2849 pa_assert(m->profile_set);
2850 pa_assert(m->profile_set->decibel_fixes);
2851 pa_assert(direction == PA_ALSA_DIRECTION_OUTPUT || direction == PA_ALSA_DIRECTION_INPUT);
2852
2853 if (m->direction != PA_ALSA_DIRECTION_ANY && m->direction != direction)
2854 return NULL;
2855
2856 ps = pa_xnew0(pa_alsa_path_set, 1);
2857 ps->direction = direction;
2858 ps->paths = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
2859
2860 if (direction == PA_ALSA_DIRECTION_OUTPUT) {
2861 pn = m->output_path_names;
2862 cache = m->profile_set->output_paths;
2863 }
2864 else if (direction == PA_ALSA_DIRECTION_INPUT) {
2865 pn = m->input_path_names;
2866 cache = m->profile_set->input_paths;
2867 }
2868
2869 if (pn) {
2870 char **in;
2871
2872 for (in = pn; *in; in++) {
2873 pa_alsa_path *p = NULL;
2874 pa_bool_t duplicate = FALSE;
2875 char **kn;
2876
2877 for (kn = pn; kn < in; kn++)
2878 if (pa_streq(*kn, *in)) {
2879 duplicate = TRUE;
2880 break;
2881 }
2882
2883 if (duplicate)
2884 continue;
2885
2886 p = pa_hashmap_get(cache, *in);
2887 if (!p) {
2888 char *fn = pa_sprintf_malloc("%s.conf", *in);
2889 p = pa_alsa_path_new(paths_dir, fn, direction);
2890 pa_xfree(fn);
2891 if (p)
2892 pa_hashmap_put(cache, *in, p);
2893 }
2894 pa_assert(pa_hashmap_get(cache, *in) == p);
2895 if (p)
2896 pa_hashmap_put(ps->paths, p, p);
2897
2898 }
2899
2900 goto finish;
2901 }
2902
2903 if (direction == PA_ALSA_DIRECTION_OUTPUT)
2904 en = m->output_element;
2905 else if (direction == PA_ALSA_DIRECTION_INPUT)
2906 en = m->input_element;
2907
2908 if (!en) {
2909 pa_alsa_path_set_free(ps);
2910 return NULL;
2911 }
2912
2913 for (ie = en; *ie; ie++) {
2914 char **je;
2915 pa_alsa_path *p;
2916
2917 p = pa_alsa_path_synthesize(*ie, direction);
2918
2919 /* Mark all other passed elements for require-absent */
2920 for (je = en; *je; je++) {
2921 pa_alsa_element *e;
2922
2923 if (je == ie)
2924 continue;
2925
2926 e = pa_xnew0(pa_alsa_element, 1);
2927 e->path = p;
2928 e->alsa_name = pa_xstrdup(*je);
2929 e->direction = direction;
2930 e->required_absent = PA_ALSA_REQUIRED_ANY;
2931 e->volume_limit = -1;
2932
2933 PA_LLIST_INSERT_AFTER(pa_alsa_element, p->elements, p->last_element, e);
2934 p->last_element = e;
2935 }
2936
2937 pa_hashmap_put(ps->paths, *ie, p);
2938 }
2939
2940 finish:
2941 /* Assign decibel fixes to elements. */
2942 PA_HASHMAP_FOREACH(db_fix, m->profile_set->decibel_fixes, state) {
2943 pa_alsa_path *p;
2944
2945 PA_HASHMAP_FOREACH(p, ps->paths, state2) {
2946 pa_alsa_element *e;
2947
2948 PA_LLIST_FOREACH(e, p->elements) {
2949 if (e->volume_use != PA_ALSA_VOLUME_IGNORE && pa_streq(db_fix->name, e->alsa_name)) {
2950 /* The profile set that contains the dB fix may be freed
2951 * before the element, so we have to copy the dB fix
2952 * object. */
2953 e->db_fix = pa_xnewdup(pa_alsa_decibel_fix, db_fix, 1);
2954 e->db_fix->profile_set = NULL;
2955 e->db_fix->name = pa_xstrdup(db_fix->name);
2956 e->db_fix->db_values = pa_xmemdup(db_fix->db_values, (db_fix->max_step - db_fix->min_step + 1) * sizeof(long));
2957 }
2958 }
2959 }
2960 }
2961
2962 return ps;
2963 }
2964
2965 void pa_alsa_path_set_dump(pa_alsa_path_set *ps) {
2966 pa_alsa_path *p;
2967 void *state;
2968 pa_assert(ps);
2969
2970 pa_log_debug("Path Set %p, direction=%i",
2971 (void*) ps,
2972 ps->direction);
2973
2974 PA_HASHMAP_FOREACH(p, ps->paths, state)
2975 pa_alsa_path_dump(p);
2976 }
2977
2978
2979 static pa_bool_t options_have_option(pa_alsa_option *options, const char *alsa_name) {
2980 pa_alsa_option *o;
2981
2982 pa_assert(options);
2983 pa_assert(alsa_name);
2984
2985 PA_LLIST_FOREACH(o, options) {
2986 if (pa_streq(o->alsa_name, alsa_name))
2987 return TRUE;
2988 }
2989 return FALSE;
2990 }
2991
2992 static pa_bool_t enumeration_is_subset(pa_alsa_option *a_options, pa_alsa_option *b_options) {
2993 pa_alsa_option *oa, *ob;
2994
2995 if (!a_options) return TRUE;
2996 if (!b_options) return FALSE;
2997
2998 /* If there is an option A offers that B does not, then A is not a subset of B. */
2999 PA_LLIST_FOREACH(oa, a_options) {
3000 pa_bool_t found = FALSE;
3001 PA_LLIST_FOREACH(ob, b_options) {
3002 if (pa_streq(oa->alsa_name, ob->alsa_name)) {
3003 found = TRUE;
3004 break;
3005 }
3006 }
3007 if (!found)
3008 return FALSE;
3009 }
3010 return TRUE;
3011 }
3012
3013 /**
3014 * Compares two elements to see if a is a subset of b
3015 */
3016 static pa_bool_t element_is_subset(pa_alsa_element *a, pa_alsa_element *b, snd_mixer_t *m) {
3017 pa_assert(a);
3018 pa_assert(b);
3019 pa_assert(m);
3020
3021 /* General rules:
3022 * Every state is a subset of itself (with caveats for volume_limits and options)
3023 * IGNORE is a subset of every other state */
3024
3025 /* Check the volume_use */
3026 if (a->volume_use != PA_ALSA_VOLUME_IGNORE) {
3027
3028 /* "Constant" is subset of "Constant" only when their constant values are equal */
3029 if (a->volume_use == PA_ALSA_VOLUME_CONSTANT && b->volume_use == PA_ALSA_VOLUME_CONSTANT && a->constant_volume != b->constant_volume)
3030 return FALSE;
3031
3032 /* Different volume uses when b is not "Merge" means we are definitely not a subset */
3033 if (a->volume_use != b->volume_use && b->volume_use != PA_ALSA_VOLUME_MERGE)
3034 return FALSE;
3035
3036 /* "Constant" is a subset of "Merge", if there is not a "volume-limit" in "Merge" below the actual constant.
3037 * "Zero" and "Off" are just special cases of "Constant" when comparing to "Merge"
3038 * "Merge" with a "volume-limit" is a subset of "Merge" without a "volume-limit" or with a higher "volume-limit" */
3039 if (b->volume_use == PA_ALSA_VOLUME_MERGE && b->volume_limit >= 0) {
3040 long a_limit;
3041
3042 if (a->volume_use == PA_ALSA_VOLUME_CONSTANT)
3043 a_limit = a->constant_volume;
3044 else if (a->volume_use == PA_ALSA_VOLUME_ZERO) {
3045 long dB = 0;
3046
3047 if (a->db_fix) {
3048 int rounding = (a->direction == PA_ALSA_DIRECTION_OUTPUT ? +1 : -1);
3049 a_limit = decibel_fix_get_step(a->db_fix, &dB, rounding);
3050 } else {
3051 snd_mixer_selem_id_t *sid;
3052 snd_mixer_elem_t *me;
3053
3054 SELEM_INIT(sid, a->alsa_name);
3055 if (!(me = snd_mixer_find_selem(m, sid))) {
3056 pa_log_warn("Element %s seems to have disappeared.", a->alsa_name);
3057 return FALSE;
3058 }
3059
3060 if (a->direction == PA_ALSA_DIRECTION_OUTPUT) {
3061 if (snd_mixer_selem_ask_playback_dB_vol(me, dB, +1, &a_limit) < 0)
3062 return FALSE;
3063 } else {
3064 if (snd_mixer_selem_ask_capture_dB_vol(me, dB, -1, &a_limit) < 0)
3065 return FALSE;
3066 }
3067 }
3068 } else if (a->volume_use == PA_ALSA_VOLUME_OFF)
3069 a_limit = a->min_volume;
3070 else if (a->volume_use == PA_ALSA_VOLUME_MERGE)
3071 a_limit = a->volume_limit;
3072 else
3073 /* This should never be reached */
3074 pa_assert(FALSE);
3075
3076 if (a_limit > b->volume_limit)
3077 return FALSE;
3078 }
3079
3080 if (a->volume_use == PA_ALSA_VOLUME_MERGE) {
3081 int s;
3082 /* If override-maps are different, they're not subsets */
3083 if (a->n_channels != b->n_channels)
3084 return FALSE;
3085 for (s = 0; s <= SND_MIXER_SCHN_LAST; s++)
3086 if (a->masks[s][a->n_channels-1] != b->masks[s][b->n_channels-1]) {
3087 pa_log_debug("Element %s is not a subset - mask a: 0x%" PRIx64 ", mask b: 0x%" PRIx64 ", at channel %d",
3088 a->alsa_name, a->masks[s][a->n_channels-1], b->masks[s][b->n_channels-1], s);
3089 return FALSE;
3090 }
3091 }
3092 }
3093
3094 if (a->switch_use != PA_ALSA_SWITCH_IGNORE) {
3095 /* "On" is a subset of "Mute".
3096 * "Off" is a subset of "Mute".
3097 * "On" is a subset of "Select", if there is an "Option:On" in B.
3098 * "Off" is a subset of "Select", if there is an "Option:Off" in B.
3099 * "Select" is a subset of "Select", if they have the same options (is this always true?). */
3100
3101 if (a->switch_use != b->switch_use) {
3102
3103 if (a->switch_use == PA_ALSA_SWITCH_SELECT || a->switch_use == PA_ALSA_SWITCH_MUTE
3104 || b->switch_use == PA_ALSA_SWITCH_OFF || b->switch_use == PA_ALSA_SWITCH_ON)
3105 return FALSE;
3106
3107 if (b->switch_use == PA_ALSA_SWITCH_SELECT) {
3108 if (a->switch_use == PA_ALSA_SWITCH_ON) {
3109 if (!options_have_option(b->options, "on"))
3110 return FALSE;
3111 } else if (a->switch_use == PA_ALSA_SWITCH_OFF) {
3112 if (!options_have_option(b->options, "off"))
3113 return FALSE;
3114 }
3115 }
3116 } else if (a->switch_use == PA_ALSA_SWITCH_SELECT) {
3117 if (!enumeration_is_subset(a->options, b->options))
3118 return FALSE;
3119 }
3120 }
3121
3122 if (a->enumeration_use != PA_ALSA_ENUMERATION_IGNORE) {
3123 if (b->enumeration_use == PA_ALSA_ENUMERATION_IGNORE)
3124 return FALSE;
3125 if (!enumeration_is_subset(a->options, b->options))
3126 return FALSE;
3127 }
3128
3129 return TRUE;
3130 }
3131
3132 static void path_set_condense(pa_alsa_path_set *ps, snd_mixer_t *m) {
3133 pa_alsa_path *p;
3134 void *state;
3135
3136 pa_assert(ps);
3137 pa_assert(m);
3138
3139 /* If we only have one path, then don't bother */
3140 if (pa_hashmap_size(ps->paths) < 2)
3141 return;
3142
3143 PA_HASHMAP_FOREACH(p, ps->paths, state) {
3144 pa_alsa_path *p2;
3145 void *state2;
3146
3147 PA_HASHMAP_FOREACH(p2, ps->paths, state2) {
3148 pa_alsa_element *ea, *eb;
3149 pa_alsa_jack *ja, *jb;
3150 pa_bool_t is_subset = TRUE;
3151
3152 if (p == p2)
3153 continue;
3154
3155 /* If a has a jack that b does not have, a is not a subset */
3156 PA_LLIST_FOREACH(ja, p->jacks) {
3157 pa_bool_t exists = FALSE;
3158
3159 if (!ja->has_control)
3160 continue;
3161
3162 PA_LLIST_FOREACH(jb, p2->jacks) {
3163 if (jb->has_control && pa_streq(jb->alsa_name, ja->alsa_name) &&
3164 (ja->state_plugged == jb->state_plugged) &&
3165 (ja->state_unplugged == jb->state_unplugged)) {
3166 exists = TRUE;
3167 break;
3168 }
3169 }
3170
3171 if (!exists) {
3172 is_subset = FALSE;
3173 break;
3174 }
3175 }
3176
3177 /* Compare the elements of each set... */
3178 pa_assert_se(ea = p->elements);
3179 pa_assert_se(eb = p2->elements);
3180
3181 while (is_subset) {
3182 if (pa_streq(ea->alsa_name, eb->alsa_name)) {
3183 if (element_is_subset(ea, eb, m)) {
3184 ea = ea->next;
3185 eb = eb->next;
3186 if ((ea && !eb) || (!ea && eb))
3187 is_subset = FALSE;
3188 else if (!ea && !eb)
3189 break;
3190 } else
3191 is_subset = FALSE;
3192
3193 } else
3194 is_subset = FALSE;
3195 }
3196
3197 if (is_subset) {
3198 pa_log_debug("Removing path '%s' as it is a subset of '%s'.", p->name, p2->name);
3199 pa_hashmap_remove(ps->paths, p);
3200 break;
3201 }
3202 }
3203 }
3204 }
3205
3206 static pa_alsa_path* path_set_find_path_by_name(pa_alsa_path_set *ps, const char* name, pa_alsa_path *ignore)
3207 {
3208 pa_alsa_path* p;
3209 void *state;
3210
3211 PA_HASHMAP_FOREACH(p, ps->paths, state)
3212 if (p != ignore && pa_streq(p->name, name))
3213 return p;
3214 return NULL;
3215 }
3216
3217 static void path_set_make_paths_unique(pa_alsa_path_set *ps) {
3218 pa_alsa_path *p, *q;
3219 void *state, *state2;
3220
3221 PA_HASHMAP_FOREACH(p, ps->paths, state) {
3222 unsigned i;
3223 char *m;
3224
3225 q = path_set_find_path_by_name(ps, p->name, p);
3226
3227 if (!q)
3228 continue;
3229
3230 m = pa_xstrdup(p->name);
3231
3232 /* OK, this name is not unique, hence let's rename */
3233 i = 1;
3234 PA_HASHMAP_FOREACH(q, ps->paths, state2) {
3235 char *nn, *nd;
3236
3237 if (!pa_streq(q->name, m))
3238 continue;
3239
3240 nn = pa_sprintf_malloc("%s-%u", m, i);
3241 pa_xfree(q->name);
3242 q->name = nn;
3243
3244 nd = pa_sprintf_malloc("%s %u", q->description, i);
3245 pa_xfree(q->description);
3246 q->description = nd;
3247
3248 i++;
3249 }
3250
3251 pa_xfree(m);
3252 }
3253 }
3254
3255 static void mapping_free(pa_alsa_mapping *m) {
3256 pa_assert(m);
3257
3258 pa_xfree(m->name);
3259 pa_xfree(m->description);
3260
3261 pa_proplist_free(m->proplist);
3262
3263 pa_xstrfreev(m->device_strings);
3264 pa_xstrfreev(m->input_path_names);
3265 pa_xstrfreev(m->output_path_names);
3266 pa_xstrfreev(m->input_element);
3267 pa_xstrfreev(m->output_element);
3268 if (m->input_path_set)
3269 pa_alsa_path_set_free(m->input_path_set);
3270 if (m->output_path_set)
3271 pa_alsa_path_set_free(m->output_path_set);
3272
3273 pa_assert(!m->input_pcm);
3274 pa_assert(!m->output_pcm);
3275
3276 pa_alsa_ucm_mapping_context_free(&m->ucm_context);
3277
3278 pa_xfree(m);
3279 }
3280
3281 static void profile_free(pa_alsa_profile *p) {
3282 pa_assert(p);
3283
3284 pa_xfree(p->name);
3285 pa_xfree(p->description);
3286
3287 pa_xstrfreev(p->input_mapping_names);
3288 pa_xstrfreev(p->output_mapping_names);
3289
3290 if (p->input_mappings)
3291 pa_idxset_free(p->input_mappings, NULL, NULL);
3292
3293 if (p->output_mappings)
3294 pa_idxset_free(p->output_mappings, NULL, NULL);
3295
3296 pa_xfree(p);
3297 }
3298
3299 void pa_alsa_profile_set_free(pa_alsa_profile_set *ps) {
3300 pa_assert(ps);
3301
3302 if (ps->input_paths) {
3303 pa_alsa_path *p;
3304
3305 while ((p = pa_hashmap_steal_first(ps->input_paths)))
3306 pa_alsa_path_free(p);
3307
3308 pa_hashmap_free(ps->input_paths, NULL, NULL);
3309 }
3310
3311 if (ps->output_paths) {
3312 pa_alsa_path *p;
3313
3314 while ((p = pa_hashmap_steal_first(ps->output_paths)))
3315 pa_alsa_path_free(p);
3316
3317 pa_hashmap_free(ps->output_paths, NULL, NULL);
3318 }
3319
3320 if (ps->profiles) {
3321 pa_alsa_profile *p;
3322
3323 while ((p = pa_hashmap_steal_first(ps->profiles)))
3324 profile_free(p);
3325
3326 pa_hashmap_free(ps->profiles, NULL, NULL);
3327 }
3328
3329 if (ps->mappings) {
3330 pa_alsa_mapping *m;
3331
3332 while ((m = pa_hashmap_steal_first(ps->mappings)))
3333 mapping_free(m);
3334
3335 pa_hashmap_free(ps->mappings, NULL, NULL);
3336 }
3337
3338 if (ps->decibel_fixes) {
3339 pa_alsa_decibel_fix *db_fix;
3340
3341 while ((db_fix = pa_hashmap_steal_first(ps->decibel_fixes)))
3342 decibel_fix_free(db_fix);
3343
3344 pa_hashmap_free(ps->decibel_fixes, NULL, NULL);
3345 }
3346
3347 pa_xfree(ps);
3348 }
3349
3350 pa_alsa_mapping *pa_alsa_mapping_get(pa_alsa_profile_set *ps, const char *name) {
3351 pa_alsa_mapping *m;
3352
3353 if (!pa_startswith(name, "Mapping "))
3354 return NULL;
3355
3356 name += 8;
3357
3358 if ((m = pa_hashmap_get(ps->mappings, name)))
3359 return m;
3360
3361 m = pa_xnew0(pa_alsa_mapping, 1);
3362 m->profile_set = ps;
3363 m->name = pa_xstrdup(name);
3364 pa_channel_map_init(&m->channel_map);
3365 m->proplist = pa_proplist_new();
3366
3367 pa_hashmap_put(ps->mappings, m->name, m);
3368
3369 return m;
3370 }
3371
3372 static pa_alsa_profile *profile_get(pa_alsa_profile_set *ps, const char *name) {
3373 pa_alsa_profile *p;
3374
3375 if (!pa_startswith(name, "Profile "))
3376 return NULL;
3377
3378 name += 8;
3379
3380 if ((p = pa_hashmap_get(ps->profiles, name)))
3381 return p;
3382
3383 p = pa_xnew0(pa_alsa_profile, 1);
3384 p->profile_set = ps;
3385 p->name = pa_xstrdup(name);
3386
3387 pa_hashmap_put(ps->profiles, p->name, p);
3388
3389 return p;
3390 }
3391
3392 static pa_alsa_decibel_fix *decibel_fix_get(pa_alsa_profile_set *ps, const char *name) {
3393 pa_alsa_decibel_fix *db_fix;
3394
3395 if (!pa_startswith(name, "DecibelFix "))
3396 return NULL;
3397
3398 name += 11;
3399
3400 if ((db_fix = pa_hashmap_get(ps->decibel_fixes, name)))
3401 return db_fix;
3402
3403 db_fix = pa_xnew0(pa_alsa_decibel_fix, 1);
3404 db_fix->profile_set = ps;
3405 db_fix->name = pa_xstrdup(name);
3406
3407 pa_hashmap_put(ps->decibel_fixes, db_fix->name, db_fix);
3408
3409 return db_fix;
3410 }
3411
3412 static int mapping_parse_device_strings(pa_config_parser_state *state) {
3413 pa_alsa_profile_set *ps;
3414 pa_alsa_mapping *m;
3415
3416 pa_assert(state);
3417
3418 ps = state->userdata;
3419
3420 if (!(m = pa_alsa_mapping_get(ps, state->section))) {
3421 pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section);
3422 return -1;
3423 }
3424
3425 pa_xstrfreev(m->device_strings);
3426 if (!(m->device_strings = pa_split_spaces_strv(state->rvalue))) {
3427 pa_log("[%s:%u] Device string list empty of '%s'", state->filename, state->lineno, state->section);
3428 return -1;
3429 }
3430
3431 return 0;
3432 }
3433
3434 static int mapping_parse_channel_map(pa_config_parser_state *state) {
3435 pa_alsa_profile_set *ps;
3436 pa_alsa_mapping *m;
3437
3438 pa_assert(state);
3439
3440 ps = state->userdata;
3441
3442 if (!(m = pa_alsa_mapping_get(ps, state->section))) {
3443 pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section);
3444 return -1;
3445 }
3446
3447 if (!(pa_channel_map_parse(&m->channel_map, state->rvalue))) {
3448 pa_log("[%s:%u] Channel map invalid of '%s'", state->filename, state->lineno, state->section);
3449 return -1;
3450 }
3451
3452 return 0;
3453 }
3454
3455 static int mapping_parse_paths(pa_config_parser_state *state) {
3456 pa_alsa_profile_set *ps;
3457 pa_alsa_mapping *m;
3458
3459 pa_assert(state);
3460
3461 ps = state->userdata;
3462
3463 if (!(m = pa_alsa_mapping_get(ps, state->section))) {
3464 pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section);
3465 return -1;
3466 }
3467
3468 if (pa_streq(state->lvalue, "paths-input")) {
3469 pa_xstrfreev(m->input_path_names);
3470 m->input_path_names = pa_split_spaces_strv(state->rvalue);
3471 } else {
3472 pa_xstrfreev(m->output_path_names);
3473 m->output_path_names = pa_split_spaces_strv(state->rvalue);
3474 }
3475
3476 return 0;
3477 }
3478
3479 static int mapping_parse_element(pa_config_parser_state *state) {
3480 pa_alsa_profile_set *ps;
3481 pa_alsa_mapping *m;
3482
3483 pa_assert(state);
3484
3485 ps = state->userdata;
3486
3487 if (!(m = pa_alsa_mapping_get(ps, state->section))) {
3488 pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section);
3489 return -1;
3490 }
3491
3492 if (pa_streq(state->lvalue, "element-input")) {
3493 pa_xstrfreev(m->input_element);
3494 m->input_element = pa_split_spaces_strv(state->rvalue);
3495 } else {
3496 pa_xstrfreev(m->output_element);
3497 m->output_element = pa_split_spaces_strv(state->rvalue);
3498 }
3499
3500 return 0;
3501 }
3502
3503 static int mapping_parse_direction(pa_config_parser_state *state) {
3504 pa_alsa_profile_set *ps;
3505 pa_alsa_mapping *m;
3506
3507 pa_assert(state);
3508
3509 ps = state->userdata;
3510
3511 if (!(m = pa_alsa_mapping_get(ps, state->section))) {
3512 pa_log("[%s:%u] Section name %s invalid.", state->filename, state->lineno, state->section);
3513 return -1;
3514 }
3515
3516 if (pa_streq(state->rvalue, "input"))
3517 m->direction = PA_ALSA_DIRECTION_INPUT;
3518 else if (pa_streq(state->rvalue, "output"))
3519 m->direction = PA_ALSA_DIRECTION_OUTPUT;
3520 else if (pa_streq(state->rvalue, "any"))
3521 m->direction = PA_ALSA_DIRECTION_ANY;
3522 else {
3523 pa_log("[%s:%u] Direction %s invalid.", state->filename, state->lineno, state->rvalue);
3524 return -1;
3525 }
3526
3527 return 0;
3528 }
3529
3530 static int mapping_parse_description(pa_config_parser_state *state) {
3531 pa_alsa_profile_set *ps;
3532 pa_alsa_profile *p;
3533 pa_alsa_mapping *m;
3534
3535 pa_assert(state);
3536
3537 ps = state->userdata;
3538
3539 if ((m = pa_alsa_mapping_get(ps, state->section))) {
3540 pa_xfree(m->description);
3541 m->description = pa_xstrdup(state->rvalue);
3542 } else if ((p = profile_get(ps, state->section))) {
3543 pa_xfree(p->description);
3544 p->description = pa_xstrdup(state->rvalue);
3545 } else {
3546 pa_log("[%s:%u] Section name %s invalid.", state->filename, state->lineno, state->section);
3547 return -1;
3548 }
3549
3550 return 0;
3551 }
3552
3553 static int mapping_parse_priority(pa_config_parser_state *state) {
3554 pa_alsa_profile_set *ps;
3555 pa_alsa_profile *p;
3556 pa_alsa_mapping *m;
3557 uint32_t prio;
3558
3559 pa_assert(state);
3560
3561 ps = state->userdata;
3562
3563 if (pa_atou(state->rvalue, &prio) < 0) {
3564 pa_log("[%s:%u] Priority invalid of '%s'", state->filename, state->lineno, state->section);
3565 return -1;
3566 }
3567
3568 if ((m = pa_alsa_mapping_get(ps, state->section)))
3569 m->priority = prio;
3570 else if ((p = profile_get(ps, state->section)))
3571 p->priority = prio;
3572 else {
3573 pa_log("[%s:%u] Section name %s invalid.", state->filename, state->lineno, state->section);
3574 return -1;
3575 }
3576
3577 return 0;
3578 }
3579
3580 static int profile_parse_mappings(pa_config_parser_state *state) {
3581 pa_alsa_profile_set *ps;
3582 pa_alsa_profile *p;
3583
3584 pa_assert(state);
3585
3586 ps = state->userdata;
3587
3588 if (!(p = profile_get(ps, state->section))) {
3589 pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section);
3590 return -1;
3591 }
3592
3593 if (pa_streq(state->lvalue, "input-mappings")) {
3594 pa_xstrfreev(p->input_mapping_names);
3595 p->input_mapping_names = pa_split_spaces_strv(state->rvalue);
3596 } else {
3597 pa_xstrfreev(p->output_mapping_names);
3598 p->output_mapping_names = pa_split_spaces_strv(state->rvalue);
3599 }
3600
3601 return 0;
3602 }
3603
3604 static int profile_parse_skip_probe(pa_config_parser_state *state) {
3605 pa_alsa_profile_set *ps;
3606 pa_alsa_profile *p;
3607 int b;
3608
3609 pa_assert(state);
3610
3611 ps = state->userdata;
3612
3613 if (!(p = profile_get(ps, state->section))) {
3614 pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section);
3615 return -1;
3616 }
3617
3618 if ((b = pa_parse_boolean(state->rvalue)) < 0) {
3619 pa_log("[%s:%u] Skip probe invalid of '%s'", state->filename, state->lineno, state->section);
3620 return -1;
3621 }
3622
3623 p->supported = b;
3624
3625 return 0;
3626 }
3627
3628 static int decibel_fix_parse_db_values(pa_config_parser_state *state) {
3629 pa_alsa_profile_set *ps;
3630 pa_alsa_decibel_fix *db_fix;
3631 char **items;
3632 char *item;
3633 long *db_values;
3634 unsigned n = 8; /* Current size of the db_values table. */
3635 unsigned min_step = 0;
3636 unsigned max_step = 0;
3637 unsigned i = 0; /* Index to the items table. */
3638 unsigned prev_step = 0;
3639 double prev_db = 0;
3640
3641 pa_assert(state);
3642
3643 ps = state->userdata;
3644
3645 if (!(db_fix = decibel_fix_get(ps, state->section))) {
3646 pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section);
3647 return -1;
3648 }
3649
3650 if (!(items = pa_split_spaces_strv(state->rvalue))) {
3651 pa_log("[%s:%u] Value missing", state->filename, state->lineno);
3652 return -1;
3653 }
3654
3655 db_values = pa_xnew(long, n);
3656
3657 while ((item = items[i++])) {
3658 char *s = item; /* Step value string. */
3659 char *d = item; /* dB value string. */
3660 uint32_t step;
3661 double db;
3662
3663 /* Move d forward until it points to a colon or to the end of the item. */
3664 for (; *d && *d != ':'; ++d);
3665
3666 if (d == s) {
3667 /* item started with colon. */
3668 pa_log("[%s:%u] No step value found in %s", state->filename, state->lineno, item);
3669 goto fail;
3670 }
3671
3672 if (!*d || !*(d + 1)) {
3673 /* No colon found, or it was the last character in item. */
3674 pa_log("[%s:%u] No dB value found in %s", state->filename, state->lineno, item);
3675 goto fail;
3676 }
3677
3678 /* pa_atou() needs a null-terminating string. Let's replace the colon
3679 * with a zero byte. */
3680 *d++ = '\0';
3681
3682 if (pa_atou(s, &step) < 0) {
3683 pa_log("[%s:%u] Invalid step value: %s", state->filename, state->lineno, s);
3684 goto fail;
3685 }
3686
3687 if (pa_atod(d, &db) < 0) {
3688 pa_log("[%s:%u] Invalid dB value: %s", state->filename, state->lineno, d);
3689 goto fail;
3690 }
3691
3692 if (step <= prev_step && i != 1) {
3693 pa_log("[%s:%u] Step value %u not greater than the previous value %u", state->filename, state->lineno, step, prev_step);
3694 goto fail;
3695 }
3696
3697 if (db < prev_db && i != 1) {
3698 pa_log("[%s:%u] Decibel value %0.2f less than the previous value %0.2f", state->filename, state->lineno, db, prev_db);
3699 goto fail;
3700 }
3701
3702 if (i == 1) {
3703 min_step = step;
3704 db_values[0] = (long) (db * 100.0);
3705 prev_step = step;
3706 prev_db = db;
3707 } else {
3708 /* Interpolate linearly. */
3709 double db_increment = (db - prev_db) / (step - prev_step);
3710
3711 for (; prev_step < step; ++prev_step, prev_db += db_increment) {
3712
3713 /* Reallocate the db_values table if it's about to overflow. */
3714 if (prev_step + 1 - min_step == n) {
3715 n *= 2;
3716 db_values = pa_xrenew(long, db_values, n);
3717 }
3718
3719 db_values[prev_step + 1 - min_step] = (long) ((prev_db + db_increment) * 100.0);
3720 }
3721 }
3722
3723 max_step = step;
3724 }
3725
3726 db_fix->min_step = min_step;
3727 db_fix->max_step = max_step;
3728 pa_xfree(db_fix->db_values);
3729 db_fix->db_values = db_values;
3730
3731 pa_xstrfreev(items);
3732
3733 return 0;
3734
3735 fail:
3736 pa_xstrfreev(items);
3737 pa_xfree(db_values);
3738
3739 return -1;
3740 }
3741
3742 static void mapping_paths_probe(pa_alsa_mapping *m, pa_alsa_profile *profile,
3743 pa_alsa_direction_t direction) {
3744
3745 pa_alsa_path *p;
3746 void *state;
3747 snd_pcm_t *pcm_handle;
3748 pa_alsa_path_set *ps;
3749 snd_mixer_t *mixer_handle;
3750 snd_hctl_t *hctl_handle;
3751
3752 if (direction == PA_ALSA_DIRECTION_OUTPUT) {
3753 if (m->output_path_set)
3754 return; /* Already probed */
3755 m->output_path_set = ps = pa_alsa_path_set_new(m, direction, NULL); /* FIXME: Handle paths_dir */
3756 pcm_handle = m->output_pcm;
3757 } else {
3758 if (m->input_path_set)
3759 return; /* Already probed */
3760 m->input_path_set = ps = pa_alsa_path_set_new(m, direction, NULL); /* FIXME: Handle paths_dir */
3761 pcm_handle = m->input_pcm;
3762 }
3763
3764 if (!ps)
3765 return; /* No paths */
3766
3767 pa_assert(pcm_handle);
3768
3769 mixer_handle = pa_alsa_open_mixer_for_pcm(pcm_handle, NULL, &hctl_handle);
3770 if (!mixer_handle || !hctl_handle) {
3771 /* Cannot open mixer, remove all entries */
3772 while (pa_hashmap_steal_first(ps->paths));
3773 return;
3774 }
3775
3776
3777 PA_HASHMAP_FOREACH(p, ps->paths, state) {
3778 if (pa_alsa_path_probe(p, mixer_handle, hctl_handle, m->profile_set->ignore_dB) < 0) {
3779 pa_hashmap_remove(ps->paths, p);
3780 }
3781 }
3782
3783 path_set_condense(ps, mixer_handle);
3784 path_set_make_paths_unique(ps);
3785
3786 if (mixer_handle)
3787 snd_mixer_close(mixer_handle);
3788
3789 pa_log_debug("Available mixer paths (after tidying):");
3790 pa_alsa_path_set_dump(ps);
3791 }
3792
3793 static int mapping_verify(pa_alsa_mapping *m, const pa_channel_map *bonus) {
3794
3795 static const struct description_map well_known_descriptions[] = {
3796 { "analog-mono", N_("Analog Mono") },
3797 { "analog-stereo", N_("Analog Stereo") },
3798 { "analog-surround-21", N_("Analog Surround 2.1") },
3799 { "analog-surround-30", N_("Analog Surround 3.0") },
3800 { "analog-surround-31", N_("Analog Surround 3.1") },
3801 { "analog-surround-40", N_("Analog Surround 4.0") },
3802 { "analog-surround-41", N_("Analog Surround 4.1") },
3803 { "analog-surround-50", N_("Analog Surround 5.0") },
3804 { "analog-surround-51", N_("Analog Surround 5.1") },
3805 { "analog-surround-61", N_("Analog Surround 6.0") },
3806 { "analog-surround-61", N_("Analog Surround 6.1") },
3807 { "analog-surround-70", N_("Analog Surround 7.0") },
3808 { "analog-surround-71", N_("Analog Surround 7.1") },
3809 { "analog-4-channel-input", N_("Analog 4-channel Input") },
3810 { "iec958-stereo", N_("Digital Stereo (IEC958)") },
3811 { "iec958-passthrough", N_("Digital Passthrough (IEC958)") },
3812 { "iec958-ac3-surround-40", N_("Digital Surround 4.0 (IEC958/AC3)") },
3813 { "iec958-ac3-surround-51", N_("Digital Surround 5.1 (IEC958/AC3)") },
3814 { "iec958-dts-surround-51", N_("Digital Surround 5.1 (IEC958/DTS)") },
3815 { "hdmi-stereo", N_("Digital Stereo (HDMI)") },
3816 { "hdmi-surround-51", N_("Digital Surround 5.1 (HDMI)") }
3817 };
3818
3819 pa_assert(m);
3820
3821 if (!pa_channel_map_valid(&m->channel_map)) {
3822 pa_log("Mapping %s is missing channel map.", m->name);
3823 return -1;
3824 }
3825
3826 if (!m->device_strings) {
3827 pa_log("Mapping %s is missing device strings.", m->name);
3828 return -1;
3829 }
3830
3831 if ((m->input_path_names && m->input_element) ||
3832 (m->output_path_names && m->output_element)) {
3833 pa_log("Mapping %s must have either mixer path or mixer element, not both.", m->name);
3834 return -1;
3835 }
3836
3837 if (!m->description)
3838 m->description = pa_xstrdup(lookup_description(m->name,
3839 well_known_descriptions,
3840 PA_ELEMENTSOF(well_known_descriptions)));
3841
3842 if (!m->description)
3843 m->description = pa_xstrdup(m->name);
3844
3845 if (bonus) {
3846 if (pa_channel_map_equal(&m->channel_map, bonus))
3847 m->priority += 50;
3848 else if (m->channel_map.channels == bonus->channels)
3849 m->priority += 30;
3850 }
3851
3852 return 0;
3853 }
3854
3855 void pa_alsa_mapping_dump(pa_alsa_mapping *m) {
3856 char cm[PA_CHANNEL_MAP_SNPRINT_MAX];
3857
3858 pa_assert(m);
3859
3860 pa_log_debug("Mapping %s (%s), priority=%u, channel_map=%s, supported=%s, direction=%i",
3861 m->name,
3862 pa_strnull(m->description),
3863 m->priority,
3864 pa_channel_map_snprint(cm, sizeof(cm), &m->channel_map),
3865 pa_yes_no(m->supported),
3866 m->direction);
3867 }
3868
3869 static void profile_set_add_auto_pair(
3870 pa_alsa_profile_set *ps,
3871 pa_alsa_mapping *m, /* output */
3872 pa_alsa_mapping *n /* input */) {
3873
3874 char *name;
3875 pa_alsa_profile *p;
3876
3877 pa_assert(ps);
3878 pa_assert(m || n);
3879
3880 if (m && m->direction == PA_ALSA_DIRECTION_INPUT)
3881 return;
3882
3883 if (n && n->direction == PA_ALSA_DIRECTION_OUTPUT)
3884 return;
3885
3886 if (m && n)
3887 name = pa_sprintf_malloc("output:%s+input:%s", m->name, n->name);
3888 else if (m)
3889 name = pa_sprintf_malloc("output:%s", m->name);
3890 else
3891 name = pa_sprintf_malloc("input:%s", n->name);
3892
3893 if (pa_hashmap_get(ps->profiles, name)) {
3894 pa_xfree(name);
3895 return;
3896 }
3897
3898 p = pa_xnew0(pa_alsa_profile, 1);
3899 p->profile_set = ps;
3900 p->name = name;
3901
3902 if (m) {
3903 p->output_mappings = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
3904 pa_idxset_put(p->output_mappings, m, NULL);
3905 p->priority += m->priority * 100;
3906 }
3907
3908 if (n) {
3909 p->input_mappings = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
3910 pa_idxset_put(p->input_mappings, n, NULL);
3911 p->priority += n->priority;
3912 }
3913
3914 pa_hashmap_put(ps->profiles, p->name, p);
3915 }
3916
3917 static void profile_set_add_auto(pa_alsa_profile_set *ps) {
3918 pa_alsa_mapping *m, *n;
3919 void *m_state, *n_state;
3920
3921 pa_assert(ps);
3922
3923 PA_HASHMAP_FOREACH(m, ps->mappings, m_state) {
3924 profile_set_add_auto_pair(ps, m, NULL);
3925
3926 PA_HASHMAP_FOREACH(n, ps->mappings, n_state)
3927 profile_set_add_auto_pair(ps, m, n);
3928 }
3929
3930 PA_HASHMAP_FOREACH(n, ps->mappings, n_state)
3931 profile_set_add_auto_pair(ps, NULL, n);
3932 }
3933
3934 static int profile_verify(pa_alsa_profile *p) {
3935
3936 static const struct description_map well_known_descriptions[] = {
3937 { "output:analog-mono+input:analog-mono", N_("Analog Mono Duplex") },
3938 { "output:analog-stereo+input:analog-stereo", N_("Analog Stereo Duplex") },
3939 { "output:iec958-stereo+input:iec958-stereo", N_("Digital Stereo Duplex (IEC958)") },
3940 { "off", N_("Off") }
3941 };
3942
3943 pa_assert(p);
3944
3945 /* Replace the output mapping names by the actual mappings */
3946 if (p->output_mapping_names) {
3947 char **name;
3948
3949 pa_assert(!p->output_mappings);
3950 p->output_mappings = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
3951
3952 for (name = p->output_mapping_names; *name; name++) {
3953 pa_alsa_mapping *m;
3954 char **in;
3955 pa_bool_t duplicate = FALSE;
3956
3957 for (in = name + 1; *in; in++)
3958 if (pa_streq(*name, *in)) {
3959 duplicate = TRUE;
3960 break;
3961 }
3962
3963 if (duplicate)
3964 continue;
3965
3966 if (!(m = pa_hashmap_get(p->profile_set->mappings, *name)) || m->direction == PA_ALSA_DIRECTION_INPUT) {
3967 pa_log("Profile '%s' refers to nonexistent mapping '%s'.", p->name, *name);
3968 return -1;
3969 }
3970
3971 pa_idxset_put(p->output_mappings, m, NULL);
3972
3973 if (p->supported)
3974 m->supported++;
3975 }
3976
3977 pa_xstrfreev(p->output_mapping_names);
3978 p->output_mapping_names = NULL;
3979 }
3980
3981 /* Replace the input mapping names by the actual mappings */
3982 if (p->input_mapping_names) {
3983 char **name;
3984
3985 pa_assert(!p->input_mappings);
3986 p->input_mappings = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
3987
3988 for (name = p->input_mapping_names; *name; name++) {
3989 pa_alsa_mapping *m;
3990 char **in;
3991 pa_bool_t duplicate = FALSE;
3992
3993 for (in = name + 1; *in; in++)
3994 if (pa_streq(*name, *in)) {
3995 duplicate = TRUE;
3996 break;
3997 }
3998
3999 if (duplicate)
4000 continue;
4001
4002 if (!(m = pa_hashmap_get(p->profile_set->mappings, *name)) || m->direction == PA_ALSA_DIRECTION_OUTPUT) {
4003 pa_log("Profile '%s' refers to nonexistent mapping '%s'.", p->name, *name);
4004 return -1;
4005 }
4006
4007 pa_idxset_put(p->input_mappings, m, NULL);
4008
4009 if (p->supported)
4010 m->supported++;
4011 }
4012
4013 pa_xstrfreev(p->input_mapping_names);
4014 p->input_mapping_names = NULL;
4015 }
4016
4017 if (!p->input_mappings && !p->output_mappings) {
4018 pa_log("Profile '%s' lacks mappings.", p->name);
4019 return -1;
4020 }
4021
4022 if (!p->description)
4023 p->description = pa_xstrdup(lookup_description(p->name,
4024 well_known_descriptions,
4025 PA_ELEMENTSOF(well_known_descriptions)));
4026
4027 if (!p->description) {
4028 pa_strbuf *sb;
4029 uint32_t idx;
4030 pa_alsa_mapping *m;
4031
4032 sb = pa_strbuf_new();
4033
4034 if (p->output_mappings)
4035 PA_IDXSET_FOREACH(m, p->output_mappings, idx) {
4036 if (!pa_strbuf_isempty(sb))
4037 pa_strbuf_puts(sb, " + ");
4038
4039 pa_strbuf_printf(sb, _("%s Output"), m->description);
4040 }
4041
4042 if (p->input_mappings)
4043 PA_IDXSET_FOREACH(m, p->input_mappings, idx) {
4044 if (!pa_strbuf_isempty(sb))
4045 pa_strbuf_puts(sb, " + ");
4046
4047 pa_strbuf_printf(sb, _("%s Input"), m->description);
4048 }
4049
4050 p->description = pa_strbuf_tostring_free(sb);
4051 }
4052
4053 return 0;
4054 }
4055
4056 void pa_alsa_profile_dump(pa_alsa_profile *p) {
4057 uint32_t idx;
4058 pa_alsa_mapping *m;
4059 pa_assert(p);
4060
4061 pa_log_debug("Profile %s (%s), priority=%u, supported=%s n_input_mappings=%u, n_output_mappings=%u",
4062 p->name,
4063 pa_strnull(p->description),
4064 p->priority,
4065 pa_yes_no(p->supported),
4066 p->input_mappings ? pa_idxset_size(p->input_mappings) : 0,
4067 p->output_mappings ? pa_idxset_size(p->output_mappings) : 0);
4068
4069 if (p->input_mappings)
4070 PA_IDXSET_FOREACH(m, p->input_mappings, idx)
4071 pa_log_debug("Input %s", m->name);
4072
4073 if (p->output_mappings)
4074 PA_IDXSET_FOREACH(m, p->output_mappings, idx)
4075 pa_log_debug("Output %s", m->name);
4076 }
4077
4078 static int decibel_fix_verify(pa_alsa_decibel_fix *db_fix) {
4079 pa_assert(db_fix);
4080
4081 /* Check that the dB mapping has been configured. Since "db-values" is
4082 * currently the only option in the DecibelFix section, and decibel fix
4083 * objects don't get created if a DecibelFix section is empty, this is
4084 * actually a redundant check. Having this may prevent future bugs,
4085 * however. */
4086 if (!db_fix->db_values) {
4087 pa_log("Decibel fix for element %s lacks the dB values.", db_fix->name);
4088 return -1;
4089 }
4090
4091 return 0;
4092 }
4093
4094 void pa_alsa_decibel_fix_dump(pa_alsa_decibel_fix *db_fix) {
4095 char *db_values = NULL;
4096
4097 pa_assert(db_fix);
4098
4099 if (db_fix->db_values) {
4100 pa_strbuf *buf;
4101 unsigned long i, nsteps;
4102
4103 pa_assert(db_fix->min_step <= db_fix->max_step);
4104 nsteps = db_fix->max_step - db_fix->min_step + 1;
4105
4106 buf = pa_strbuf_new();
4107 for (i = 0; i < nsteps; ++i)
4108 pa_strbuf_printf(buf, "[%li]:%0.2f ", i + db_fix->min_step, db_fix->db_values[i] / 100.0);
4109
4110 db_values = pa_strbuf_tostring_free(buf);
4111 }
4112
4113 pa_log_debug("Decibel fix %s, min_step=%li, max_step=%li, db_values=%s",
4114 db_fix->name, db_fix->min_step, db_fix->max_step, pa_strnull(db_values));
4115
4116 pa_xfree(db_values);
4117 }
4118
4119 pa_alsa_profile_set* pa_alsa_profile_set_new(const char *fname, const pa_channel_map *bonus) {
4120 pa_alsa_profile_set *ps;
4121 pa_alsa_profile *p;
4122 pa_alsa_mapping *m;
4123 pa_alsa_decibel_fix *db_fix;
4124 char *fn;
4125 int r;
4126 void *state;
4127
4128 static pa_config_item items[] = {
4129 /* [General] */
4130 { "auto-profiles", pa_config_parse_bool, NULL, "General" },
4131
4132 /* [Mapping ...] */
4133 { "device-strings", mapping_parse_device_strings, NULL, NULL },
4134 { "channel-map", mapping_parse_channel_map, NULL, NULL },
4135 { "paths-input", mapping_parse_paths, NULL, NULL },
4136 { "paths-output", mapping_parse_paths, NULL, NULL },
4137 { "element-input", mapping_parse_element, NULL, NULL },
4138 { "element-output", mapping_parse_element, NULL, NULL },
4139 { "direction", mapping_parse_direction, NULL, NULL },
4140
4141 /* Shared by [Mapping ...] and [Profile ...] */
4142 { "description", mapping_parse_description, NULL, NULL },
4143 { "priority", mapping_parse_priority, NULL, NULL },
4144
4145 /* [Profile ...] */
4146 { "input-mappings", profile_parse_mappings, NULL, NULL },
4147 { "output-mappings", profile_parse_mappings, NULL, NULL },
4148 { "skip-probe", profile_parse_skip_probe, NULL, NULL },
4149
4150 /* [DecibelFix ...] */
4151 { "db-values", decibel_fix_parse_db_values, NULL, NULL },
4152 { NULL, NULL, NULL, NULL }
4153 };
4154
4155 ps = pa_xnew0(pa_alsa_profile_set, 1);
4156 ps->mappings = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
4157 ps->profiles = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
4158 ps->decibel_fixes = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
4159 ps->input_paths = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
4160 ps->output_paths = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
4161
4162 items[0].data = &ps->auto_profiles;
4163
4164 if (!fname)
4165 fname = "default.conf";
4166
4167 fn = pa_maybe_prefix_path(fname,
4168 pa_run_from_build_tree() ? PA_BUILDDIR "/modules/alsa/mixer/profile-sets/" :
4169 PA_ALSA_PROFILE_SETS_DIR);
4170
4171 r = pa_config_parse(fn, NULL, items, NULL, ps);
4172 pa_xfree(fn);
4173
4174 if (r < 0)
4175 goto fail;
4176
4177 PA_HASHMAP_FOREACH(m, ps->mappings, state)
4178 if (mapping_verify(m, bonus) < 0)
4179 goto fail;
4180
4181 if (ps->auto_profiles)
4182 profile_set_add_auto(ps);
4183
4184 PA_HASHMAP_FOREACH(p, ps->profiles, state)
4185 if (profile_verify(p) < 0)
4186 goto fail;
4187
4188 PA_HASHMAP_FOREACH(db_fix, ps->decibel_fixes, state)
4189 if (decibel_fix_verify(db_fix) < 0)
4190 goto fail;
4191
4192 return ps;
4193
4194 fail:
4195 pa_alsa_profile_set_free(ps);
4196 return NULL;
4197 }
4198
4199 static void profile_finalize_probing(pa_alsa_profile *to_be_finalized, pa_alsa_profile *next) {
4200 pa_alsa_mapping *m;
4201 uint32_t idx;
4202
4203 if (!to_be_finalized)
4204 return;
4205
4206 if (to_be_finalized->output_mappings)
4207 PA_IDXSET_FOREACH(m, to_be_finalized->output_mappings, idx) {
4208
4209 if (!m->output_pcm)
4210 continue;
4211
4212 if (to_be_finalized->supported)
4213 m->supported++;
4214
4215 /* If this mapping is also in the next profile, we won't close the
4216 * pcm handle here, because it would get immediately reopened
4217 * anyway. */
4218 if (next && next->output_mappings && pa_idxset_get_by_data(next->output_mappings, m, NULL))
4219 continue;
4220
4221 snd_pcm_close(m->output_pcm);
4222 m->output_pcm = NULL;
4223 }
4224
4225 if (to_be_finalized->input_mappings)
4226 PA_IDXSET_FOREACH(m, to_be_finalized->input_mappings, idx) {
4227
4228 if (!m->input_pcm)
4229 continue;
4230
4231 if (to_be_finalized->supported)
4232 m->supported++;
4233
4234 /* If this mapping is also in the next profile, we won't close the
4235 * pcm handle here, because it would get immediately reopened
4236 * anyway. */
4237 if (next && next->input_mappings && pa_idxset_get_by_data(next->input_mappings, m, NULL))
4238 continue;
4239
4240 snd_pcm_close(m->input_pcm);
4241 m->input_pcm = NULL;
4242 }
4243 }
4244
4245 static snd_pcm_t* mapping_open_pcm(pa_alsa_mapping *m,
4246 const pa_sample_spec *ss,
4247 const char *dev_id,
4248 int mode,
4249 unsigned default_n_fragments,
4250 unsigned default_fragment_size_msec) {
4251
4252 pa_sample_spec try_ss = *ss;
4253 pa_channel_map try_map = m->channel_map;
4254 snd_pcm_uframes_t try_period_size, try_buffer_size;
4255
4256 try_ss.channels = try_map.channels;
4257
4258 try_period_size =
4259 pa_usec_to_bytes(default_fragment_size_msec * PA_USEC_PER_MSEC, &try_ss) /
4260 pa_frame_size(&try_ss);
4261 try_buffer_size = default_n_fragments * try_period_size;
4262
4263 return pa_alsa_open_by_template(
4264 m->device_strings, dev_id, NULL, &try_ss,
4265 &try_map, mode, &try_period_size,
4266 &try_buffer_size, 0, NULL, NULL, TRUE);
4267 }
4268
4269 static void paths_drop_unsupported(pa_hashmap* h) {
4270
4271 void* state = NULL;
4272 const void* key;
4273 pa_alsa_path* p;
4274
4275 pa_assert(h);
4276 p = pa_hashmap_iterate(h, &state, &key);
4277 while (p) {
4278 if (p->supported <= 0) {
4279 pa_hashmap_remove(h, key);
4280 pa_alsa_path_free(p);
4281 }
4282 p = pa_hashmap_iterate(h, &state, &key);
4283 }
4284 }
4285
4286 void pa_alsa_profile_set_probe(
4287 pa_alsa_profile_set *ps,
4288 const char *dev_id,
4289 const pa_sample_spec *ss,
4290 unsigned default_n_fragments,
4291 unsigned default_fragment_size_msec) {
4292
4293 void *state;
4294 pa_alsa_profile *p, *last = NULL;
4295 pa_alsa_mapping *m;
4296
4297 pa_assert(ps);
4298 pa_assert(dev_id);
4299 pa_assert(ss);
4300
4301 if (ps->probed)
4302 return;
4303
4304 PA_HASHMAP_FOREACH(p, ps->profiles, state) {
4305 uint32_t idx;
4306
4307 /* Skip if this is already marked that it is supported (i.e. from the config file) */
4308 if (!p->supported) {
4309
4310 pa_log_debug("Looking at profile %s", p->name);
4311 profile_finalize_probing(last, p);
4312 p->supported = TRUE;
4313
4314 /* Check if we can open all new ones */
4315 if (p->output_mappings)
4316 PA_IDXSET_FOREACH(m, p->output_mappings, idx) {
4317
4318 if (m->output_pcm)
4319 continue;
4320
4321 pa_log_debug("Checking for playback on %s (%s)", m->description, m->name);
4322 if (!(m->output_pcm = mapping_open_pcm(m, ss, dev_id,
4323 SND_PCM_STREAM_PLAYBACK,
4324 default_n_fragments,
4325 default_fragment_size_msec))) {
4326 p->supported = FALSE;
4327 break;
4328 }
4329 }
4330
4331 if (p->input_mappings && p->supported)
4332 PA_IDXSET_FOREACH(m, p->input_mappings, idx) {
4333
4334 if (m->input_pcm)
4335 continue;
4336
4337 pa_log_debug("Checking for recording on %s (%s)", m->description, m->name);
4338 if (!(m->input_pcm = mapping_open_pcm(m, ss, dev_id,
4339 SND_PCM_STREAM_CAPTURE,
4340 default_n_fragments,
4341 default_fragment_size_msec))) {
4342 p->supported = FALSE;
4343 break;
4344 }
4345 }
4346
4347 last = p;
4348
4349 if (!p->supported)
4350 continue;
4351 }
4352
4353 pa_log_debug("Profile %s supported.", p->name);
4354
4355 if (p->output_mappings)
4356 PA_IDXSET_FOREACH(m, p->output_mappings, idx)
4357 if (m->output_pcm)
4358 mapping_paths_probe(m, p, PA_ALSA_DIRECTION_OUTPUT);
4359
4360 if (p->input_mappings)
4361 PA_IDXSET_FOREACH(m, p->input_mappings, idx)
4362 if (m->input_pcm)
4363 mapping_paths_probe(m, p, PA_ALSA_DIRECTION_INPUT);
4364 }
4365
4366 /* Clean up */
4367 profile_finalize_probing(last, NULL);
4368
4369 pa_alsa_profile_set_drop_unsupported(ps);
4370
4371 paths_drop_unsupported(ps->input_paths);
4372 paths_drop_unsupported(ps->output_paths);
4373
4374 ps->probed = TRUE;
4375 }
4376
4377 void pa_alsa_profile_set_dump(pa_alsa_profile_set *ps) {
4378 pa_alsa_profile *p;
4379 pa_alsa_mapping *m;
4380 pa_alsa_decibel_fix *db_fix;
4381 void *state;
4382
4383 pa_assert(ps);
4384
4385 pa_log_debug("Profile set %p, auto_profiles=%s, probed=%s, n_mappings=%u, n_profiles=%u, n_decibel_fixes=%u",
4386 (void*)
4387 ps,
4388 pa_yes_no(ps->auto_profiles),
4389 pa_yes_no(ps->probed),
4390 pa_hashmap_size(ps->mappings),
4391 pa_hashmap_size(ps->profiles),
4392 pa_hashmap_size(ps->decibel_fixes));
4393
4394 PA_HASHMAP_FOREACH(m, ps->mappings, state)
4395 pa_alsa_mapping_dump(m);
4396
4397 PA_HASHMAP_FOREACH(p, ps->profiles, state)
4398 pa_alsa_profile_dump(p);
4399
4400 PA_HASHMAP_FOREACH(db_fix, ps->decibel_fixes, state)
4401 pa_alsa_decibel_fix_dump(db_fix);
4402 }
4403
4404 void pa_alsa_profile_set_drop_unsupported(pa_alsa_profile_set *ps) {
4405 pa_alsa_profile *p;
4406 pa_alsa_mapping *m;
4407 void *state;
4408
4409 PA_HASHMAP_FOREACH(p, ps->profiles, state) {
4410 if (!p->supported) {
4411 pa_hashmap_remove(ps->profiles, p->name);
4412 profile_free(p);
4413 }
4414 }
4415
4416 PA_HASHMAP_FOREACH(m, ps->mappings, state) {
4417 if (m->supported <= 0) {
4418 pa_hashmap_remove(ps->mappings, m->name);
4419 mapping_free(m);
4420 }
4421 }
4422 }
4423
4424 static pa_device_port* device_port_alsa_init(pa_hashmap *ports,
4425 const char* name,
4426 const char* description,
4427 pa_alsa_path *path,
4428 pa_alsa_setting *setting,
4429 pa_card_profile *cp,
4430 pa_hashmap *extra,
4431 pa_core *core) {
4432
4433 pa_device_port *p;
4434
4435 pa_assert(path);
4436
4437 p = pa_hashmap_get(ports, name);
4438
4439 if (!p) {
4440 pa_alsa_port_data *data;
4441
4442 p = pa_device_port_new(core, name, description, sizeof(pa_alsa_port_data));
4443 pa_assert(p);
4444 pa_hashmap_put(ports, p->name, p);
4445 pa_proplist_update(p->proplist, PA_UPDATE_REPLACE, path->proplist);
4446
4447 data = PA_DEVICE_PORT_DATA(p);
4448 data->path = path;
4449 data->setting = setting;
4450 path->port = p;
4451 }
4452
4453 p->is_input |= path->direction == PA_ALSA_DIRECTION_ANY || path->direction == PA_ALSA_DIRECTION_INPUT;
4454 p->is_output |= path->direction == PA_ALSA_DIRECTION_ANY || path->direction == PA_ALSA_DIRECTION_OUTPUT;
4455
4456 if (cp)
4457 pa_hashmap_put(p->profiles, cp->name, cp);
4458
4459 if (extra) {
4460 pa_hashmap_put(extra, p->name, p);
4461 pa_device_port_ref(p);
4462 }
4463
4464 return p;
4465 }
4466
4467 void pa_alsa_path_set_add_ports(
4468 pa_alsa_path_set *ps,
4469 pa_card_profile *cp,
4470 pa_hashmap *ports,
4471 pa_hashmap *extra,
4472 pa_core *core) {
4473
4474 pa_alsa_path *path;
4475 void *state;
4476
4477 pa_assert(ports);
4478
4479 if (!ps)
4480 return;
4481
4482 PA_HASHMAP_FOREACH(path, ps->paths, state) {
4483 if (!path->settings || !path->settings->next) {
4484 /* If there is no or just one setting we only need a
4485 * single entry */
4486 pa_device_port *port = device_port_alsa_init(ports, path->name,
4487 path->description, path, path->settings, cp, extra, core);
4488 port->priority = path->priority * 100;
4489
4490 } else {
4491 pa_alsa_setting *s;
4492 PA_LLIST_FOREACH(s, path->settings) {
4493 pa_device_port *port;
4494 char *n, *d;
4495
4496 n = pa_sprintf_malloc("%s;%s", path->name, s->name);
4497
4498 if (s->description[0])
4499 d = pa_sprintf_malloc("%s / %s", path->description, s->description);
4500 else
4501 d = pa_xstrdup(path->description);
4502
4503 port = device_port_alsa_init(ports, n, d, path, s, cp, extra, core);
4504 port->priority = path->priority * 100 + s->priority;
4505
4506 pa_xfree(n);
4507 pa_xfree(d);
4508 }
4509 }
4510 }
4511 }
4512
4513 void pa_alsa_add_ports(void *sink_or_source_new_data, pa_alsa_path_set *ps, pa_card *card) {
4514 pa_hashmap *ports;
4515
4516 pa_assert(sink_or_source_new_data);
4517 pa_assert(ps);
4518
4519 if (ps->direction == PA_ALSA_DIRECTION_OUTPUT)
4520 ports = ((pa_sink_new_data *) sink_or_source_new_data)->ports;
4521 else
4522 ports = ((pa_source_new_data *) sink_or_source_new_data)->ports;
4523
4524 if (ps->paths && pa_hashmap_size(ps->paths) > 0) {
4525 pa_assert(card);
4526 pa_alsa_path_set_add_ports(ps, NULL, card->ports, ports, card->core);
4527 }
4528
4529 pa_log_debug("Added %u ports", pa_hashmap_size(ports));
4530 }