2 This file is part of PulseAudio.
4 Copyright 2004-2009 Lennart Poettering
5 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
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.
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.
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
27 #include <sys/types.h>
28 #include <asoundlib.h>
31 #ifdef HAVE_VALGRIND_MEMCHECK_H
32 #include <valgrind/memcheck.h>
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>
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>
50 #include "alsa-mixer.h"
51 #include "alsa-util.h"
53 static int setting_select(pa_alsa_setting *s, snd_mixer_t *m);
55 struct description_map {
57 const char *description;
60 static const char *lookup_description(const char *name, const struct description_map dm[], unsigned n) {
63 for (i = 0; i < n; i++)
64 if (pa_streq(dm[i].name, name))
65 return _(dm[i].description);
70 struct pa_alsa_fdlist {
73 /* This is a temporary buffer used to avoid lots of mallocs */
74 struct pollfd *work_fds;
80 pa_defer_event *defer;
85 void (*cb)(void *userdata);
89 static void io_cb(pa_mainloop_api *a, pa_io_event *e, int fd, pa_io_event_flags_t events, void *userdata) {
91 struct pa_alsa_fdlist *fdl = userdata;
94 unsigned short revents;
98 pa_assert(fdl->mixer || fdl->hctl);
100 pa_assert(fdl->work_fds);
107 memcpy(fdl->work_fds, fdl->fds, sizeof(struct pollfd) * fdl->num_fds);
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;
123 pa_assert(i != fdl->num_fds);
126 err = snd_hctl_poll_descriptors_revents(fdl->hctl, fdl->work_fds, fdl->num_fds, &revents);
128 err = snd_mixer_poll_descriptors_revents(fdl->mixer, fdl->work_fds, fdl->num_fds, &revents);
131 pa_log_error("Unable to get poll revent: %s", pa_alsa_strerror(err));
135 a->defer_enable(fdl->defer, 1);
139 snd_hctl_handle_events(fdl->hctl);
141 snd_mixer_handle_events(fdl->mixer);
145 static void defer_cb(pa_mainloop_api *a, pa_defer_event *e, void *userdata) {
146 struct pa_alsa_fdlist *fdl = userdata;
153 pa_assert(fdl->mixer || fdl->hctl);
155 a->defer_enable(fdl->defer, 0);
158 n = snd_hctl_poll_descriptors_count(fdl->hctl);
160 n = snd_mixer_poll_descriptors_count(fdl->mixer);
163 pa_log("snd_mixer_poll_descriptors_count() failed: %s", pa_alsa_strerror(n));
166 num_fds = (unsigned) n;
168 if (num_fds != fdl->num_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);
177 memset(fdl->work_fds, 0, sizeof(struct pollfd) * num_fds);
180 err = snd_hctl_poll_descriptors(fdl->hctl, fdl->work_fds, num_fds);
182 err = snd_mixer_poll_descriptors(fdl->mixer, fdl->work_fds, num_fds);
185 pa_log_error("Unable to get poll descriptors: %s", pa_alsa_strerror(err));
191 if (memcmp(fdl->fds, fdl->work_fds, sizeof(struct pollfd) * num_fds) == 0)
195 for (i = 0; i < fdl->num_fds; i++)
196 a->io_free(fdl->ios[i]);
198 if (num_fds != fdl->num_fds) {
205 fdl->ios = pa_xnew(pa_io_event*, num_fds);
208 temp = fdl->work_fds;
209 fdl->work_fds = fdl->fds;
212 fdl->num_fds = num_fds;
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),
221 struct pa_alsa_fdlist *pa_alsa_fdlist_new(void) {
222 struct pa_alsa_fdlist *fdl;
224 fdl = pa_xnew0(struct pa_alsa_fdlist, 1);
229 void pa_alsa_fdlist_free(struct pa_alsa_fdlist *fdl) {
234 fdl->m->defer_free(fdl->defer);
240 for (i = 0; i < fdl->num_fds; i++)
241 fdl->m->io_free(fdl->ios[i]);
248 pa_xfree(fdl->work_fds);
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) {
256 pa_assert(hctl_handle || mixer_handle);
257 pa_assert(!(hctl_handle && mixer_handle));
261 fdl->hctl = hctl_handle;
262 fdl->mixer = mixer_handle;
264 fdl->defer = m->defer_new(m, defer_cb, fdl);
269 struct pa_alsa_mixer_pdata {
271 pa_rtpoll_item *poll_item;
276 struct pa_alsa_mixer_pdata *pa_alsa_mixer_pdata_new(void) {
277 struct pa_alsa_mixer_pdata *pd;
279 pd = pa_xnew0(struct pa_alsa_mixer_pdata, 1);
284 void pa_alsa_mixer_pdata_free(struct pa_alsa_mixer_pdata *pd) {
288 pa_rtpoll_item_free(pd->poll_item);
294 static int rtpoll_work_cb(pa_rtpoll_item *i) {
295 struct pa_alsa_mixer_pdata *pd;
298 unsigned short revents = 0;
301 pd = pa_rtpoll_item_get_userdata(i);
303 pa_assert_fp(i == pd->poll_item);
305 p = pa_rtpoll_item_get_pollfd(i, &n_fds);
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));
314 if (revents & (POLLNVAL | POLLERR)) {
315 pa_log_debug("Device disconnected, stopping poll on mixer");
317 } else if (revents & POLLERR) {
318 /* This shouldn't happen. */
319 pa_log_error("Got a POLLERR (revents = %04x), stopping poll on mixer", revents);
323 err = snd_mixer_handle_events(pd->mixer);
325 if (PA_LIKELY(err >= 0)) {
326 pa_rtpoll_item_free(i);
327 pa_alsa_set_mixer_rtpoll(pd, pd->mixer, pd->rtpoll);
329 pa_log_error("Error handling mixer event: %s", pa_alsa_strerror(err));
338 pa_rtpoll_item_free(i);
340 pd->poll_item = NULL;
347 int pa_alsa_set_mixer_rtpoll(struct pa_alsa_mixer_pdata *pd, snd_mixer_t *mixer, pa_rtpoll *rtp) {
356 if ((n = snd_mixer_poll_descriptors_count(mixer)) < 0) {
357 pa_log("snd_mixer_poll_descriptors_count() failed: %s", pa_alsa_strerror(n));
361 i = pa_rtpoll_item_new(rtp, PA_RTPOLL_LATE, (unsigned) n);
363 p = pa_rtpoll_item_get_pollfd(i, NULL);
365 memset(p, 0, sizeof(struct pollfd) * n);
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);
377 pa_rtpoll_item_set_userdata(i, pd);
378 pa_rtpoll_item_set_work_callback(i, rtpoll_work_cb);
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! */
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,
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,
396 [PA_CHANNEL_POSITION_LFE] = SND_MIXER_SCHN_WOOFER,
398 [PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER] = SND_MIXER_SCHN_UNKNOWN,
399 [PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER] = SND_MIXER_SCHN_UNKNOWN,
401 [PA_CHANNEL_POSITION_SIDE_LEFT] = SND_MIXER_SCHN_SIDE_LEFT,
402 [PA_CHANNEL_POSITION_SIDE_RIGHT] = SND_MIXER_SCHN_SIDE_RIGHT,
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,
437 [PA_CHANNEL_POSITION_TOP_CENTER] = SND_MIXER_SCHN_UNKNOWN,
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,
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
448 static void setting_free(pa_alsa_setting *s) {
452 pa_idxset_free(s->options, NULL, NULL);
455 pa_xfree(s->description);
459 static void option_free(pa_alsa_option *o) {
462 pa_xfree(o->alsa_name);
464 pa_xfree(o->description);
468 static void decibel_fix_free(pa_alsa_decibel_fix *db_fix) {
471 pa_xfree(db_fix->name);
472 pa_xfree(db_fix->db_values);
477 static void jack_free(pa_alsa_jack *j) {
480 pa_xfree(j->alsa_name);
485 static void element_free(pa_alsa_element *e) {
489 while ((o = e->options)) {
490 PA_LLIST_REMOVE(pa_alsa_option, e->options, o);
495 decibel_fix_free(e->db_fix);
497 pa_xfree(e->alsa_name);
501 void pa_alsa_path_free(pa_alsa_path *p) {
508 while ((j = p->jacks)) {
509 PA_LLIST_REMOVE(pa_alsa_jack, p->jacks, j);
513 while ((e = p->elements)) {
514 PA_LLIST_REMOVE(pa_alsa_element, p->elements, e);
518 while ((s = p->settings)) {
519 PA_LLIST_REMOVE(pa_alsa_setting, p->settings, s);
523 pa_proplist_free(p->proplist);
525 pa_xfree(p->description);
529 void pa_alsa_path_set_free(pa_alsa_path_set *ps) {
533 pa_hashmap_free(ps->paths, NULL, NULL);
538 static long to_alsa_dB(pa_volume_t v) {
539 return (long) (pa_sw_volume_to_dB(v) * 100.0);
542 static pa_volume_t from_alsa_dB(long v) {
543 return pa_sw_volume_from_dB((double) v / 100.0);
546 static long to_alsa_volume(pa_volume_t v, long min, long max) {
549 w = (long) round(((double) v * (double) (max - min)) / PA_VOLUME_NORM) + min;
550 return PA_CLAMP_UNLIKELY(w, min, max);
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));
557 #define SELEM_INIT(sid, name) \
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); \
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;
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);
582 pa_cvolume_mute(v, cm->channels);
584 /* We take the highest volume of all channels that match */
586 for (c = 0; c <= SND_MIXER_SCHN_LAST; c++) {
593 if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
594 if (snd_mixer_selem_has_playback_channel(me, c)) {
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);
614 /* Volume step -> dB value conversion. */
615 value = e->db_fix->db_values[value - e->db_fix->min_step];
618 r = snd_mixer_selem_get_playback_dB(me, c, &value);
622 if (snd_mixer_selem_has_capture_channel(me, c)) {
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);
642 /* Volume step -> dB value conversion. */
643 value = e->db_fix->db_values[value - e->db_fix->min_step];
646 r = snd_mixer_selem_get_capture_dB(me, c, &value);
654 #ifdef HAVE_VALGRIND_MEMCHECK_H
655 VALGRIND_MAKE_MEM_DEFINED(&value, sizeof(value));
658 f = from_alsa_dB(value);
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);
669 if (snd_mixer_selem_has_capture_channel(me, c))
670 r = snd_mixer_selem_get_capture_volume(me, c, &value);
678 f = from_alsa_volume(value, e->min_volume, e->max_volume);
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)
686 mask |= e->masks[c][e->n_channels-1];
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;
696 int pa_alsa_path_get_volume(pa_alsa_path *p, snd_mixer_t *m, const pa_channel_map *cm, pa_cvolume *v) {
707 pa_cvolume_reset(v, cm->channels);
709 PA_LLIST_FOREACH(e, p->elements) {
712 if (e->volume_use != PA_ALSA_VOLUME_MERGE)
715 pa_assert(!p->has_dB || e->has_dB);
717 if (element_get_volume(e, m, cm, &ev) < 0)
720 /* If we have no dB information all we can do is take the first element and leave */
726 pa_sw_cvolume_multiply(v, v, &ev);
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;
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);
747 /* We return muted if at least one channel is muted */
749 for (c = 0; c <= SND_MIXER_SCHN_LAST; c++) {
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);
759 if (snd_mixer_selem_has_capture_channel(me, c))
760 r = snd_mixer_selem_get_capture_switch(me, c, &value);
778 int pa_alsa_path_get_mute(pa_alsa_path *p, snd_mixer_t *m, pa_bool_t *muted) {
788 PA_LLIST_FOREACH(e, p->elements) {
791 if (e->switch_use != PA_ALSA_SWITCH_MUTE)
794 if (element_get_switch(e, m, &b) < 0)
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) {
817 pa_assert(rounding != 0);
819 max_i = db_fix->max_step - db_fix->min_step;
822 for (i = 0; i < max_i; i++) {
823 if (db_fix->db_values[i] >= *db_value)
827 for (i = 0; i < max_i; i++) {
828 if (db_fix->db_values[i + 1] > *db_value)
833 *db_value = db_fix->db_values[i];
835 return i + db_fix->min_step;
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) {
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);
860 if (value_high == *value_dB)
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);
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);
872 if (value_high == *value_dB)
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);
882 if (labs(value_high - *value_dB) < labs(value_low - *value_dB))
883 *value_dB = value_high;
885 *value_dB = value_low;
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) {
892 snd_mixer_selem_id_t *sid;
894 snd_mixer_elem_t *me;
895 snd_mixer_selem_channel_id_t c;
896 pa_channel_position_mask_t mask = 0;
903 pa_assert(pa_cvolume_compatible_with_channel_map(v, cm));
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);
911 pa_cvolume_mute(&rv, cm->channels);
913 for (c = 0; c <= SND_MIXER_SCHN_LAST; c++) {
915 pa_volume_t f = PA_VOLUME_MUTED;
916 pa_bool_t found = FALSE;
918 for (k = 0; k < cm->channels; k++)
919 if (e->masks[c][e->n_channels-1] & PA_CHANNEL_POSITION_MASK(cm->map[k])) {
921 if (v->values[k] > f)
926 /* Hmm, so this channel does not exist in the volume
927 * struct, so let's bind it to the overall max of the
929 f = pa_cvolume_max(v);
933 long value = to_alsa_dB(f);
936 if (e->volume_limit >= 0 && value > (e->max_dB * 100))
937 value = e->max_dB * 100;
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)) {
947 r = snd_mixer_selem_set_playback_volume(me, c, decibel_fix_get_step(e->db_fix, &value, rounding));
949 decibel_fix_get_step(e->db_fix, &value, rounding);
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);
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);
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);
971 if (snd_mixer_selem_has_capture_channel(me, c)) {
975 r = snd_mixer_selem_set_capture_volume(me, c, decibel_fix_get_step(e->db_fix, &value, rounding));
977 decibel_fix_get_step(e->db_fix, &value, rounding);
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);
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);
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);
1003 #ifdef HAVE_VALGRIND_MEMCHECK_H
1004 VALGRIND_MAKE_MEM_DEFINED(&value, sizeof(value));
1007 f = from_alsa_dB(value);
1012 value = to_alsa_volume(f, e->min_volume, e->max_volume);
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);
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);
1031 f = from_alsa_volume(value, e->min_volume, e->max_volume);
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)
1039 mask |= e->masks[c][e->n_channels-1];
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;
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) {
1059 pa_assert(pa_cvolume_compatible_with_channel_map(v, cm));
1064 rv = *v; /* Remaining adjustment */
1065 pa_cvolume_reset(v, cm->channels); /* Adjustment done */
1067 PA_LLIST_FOREACH(e, p->elements) {
1070 if (e->volume_use != PA_ALSA_VOLUME_MERGE)
1073 pa_assert(!p->has_dB || e->has_dB);
1076 if (element_set_volume(e, m, cm, &ev, deferred_volume, write_to_hw) < 0)
1084 pa_sw_cvolume_multiply(v, v, &ev);
1085 pa_sw_cvolume_divide(&rv, &rv, &ev);
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;
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);
1105 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1106 r = snd_mixer_selem_set_playback_switch_all(me, b);
1108 r = snd_mixer_selem_set_capture_switch_all(me, b);
1111 pa_log_warn("Failed to set switch of %s: %s", e->alsa_name, pa_alsa_strerror(errno));
1116 int pa_alsa_path_set_mute(pa_alsa_path *p, snd_mixer_t *m, pa_bool_t muted) {
1125 PA_LLIST_FOREACH(e, p->elements) {
1127 if (e->switch_use != PA_ALSA_SWITCH_MUTE)
1130 if (element_set_switch(e, m, !muted) < 0)
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;
1145 pa_bool_t volume_set = FALSE;
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);
1156 switch (e->volume_use) {
1157 case PA_ALSA_VOLUME_OFF:
1158 volume = e->min_volume;
1162 case PA_ALSA_VOLUME_ZERO:
1166 volume = decibel_fix_get_step(e->db_fix, &dB, (e->direction == PA_ALSA_DIRECTION_OUTPUT ? +1 : -1));
1171 case PA_ALSA_VOLUME_CONSTANT:
1172 volume = e->constant_volume;
1177 pa_assert_not_reached();
1181 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1182 r = snd_mixer_selem_set_playback_volume_all(me, volume);
1184 r = snd_mixer_selem_set_capture_volume_all(me, volume);
1186 pa_assert(e->volume_use == PA_ALSA_VOLUME_ZERO);
1187 pa_assert(!e->db_fix);
1189 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1190 r = snd_mixer_selem_set_playback_dB_all(me, 0, +1);
1192 r = snd_mixer_selem_set_capture_dB_all(me, 0, -1);
1196 pa_log_warn("Failed to set volume of %s: %s", e->alsa_name, pa_alsa_strerror(errno));
1201 int pa_alsa_path_select(pa_alsa_path *p, pa_alsa_setting *s, snd_mixer_t *m, bool device_is_muted) {
1208 pa_log_debug("Activating path %s", p->name);
1209 pa_alsa_path_dump(p);
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);
1224 PA_LLIST_FOREACH(e, p->elements) {
1226 switch (e->switch_use) {
1227 case PA_ALSA_SWITCH_OFF:
1228 r = element_set_switch(e, m, FALSE);
1231 case PA_ALSA_SWITCH_ON:
1232 r = element_set_switch(e, m, TRUE);
1235 case PA_ALSA_SWITCH_MUTE:
1236 case PA_ALSA_SWITCH_IGNORE:
1237 case PA_ALSA_SWITCH_SELECT:
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);
1252 case PA_ALSA_VOLUME_MERGE:
1253 case PA_ALSA_VOLUME_IGNORE:
1263 setting_select(s, m);
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)
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;
1286 if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
1288 snd_mixer_selem_has_playback_switch(me) ||
1289 (e->direction_try_other && snd_mixer_selem_has_capture_switch(me));
1292 snd_mixer_selem_has_capture_switch(me) ||
1293 (e->direction_try_other && snd_mixer_selem_has_playback_switch(me));
1296 if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
1298 snd_mixer_selem_has_playback_volume(me) ||
1299 (e->direction_try_other && snd_mixer_selem_has_capture_volume(me));
1302 snd_mixer_selem_has_capture_volume(me) ||
1303 (e->direction_try_other && snd_mixer_selem_has_playback_volume(me));
1306 has_enumeration = snd_mixer_selem_is_enumerated(me);
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))
1313 if (e->required == PA_ALSA_REQUIRED_ANY && !(has_switch || has_volume || has_enumeration))
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))
1321 if (e->required_absent == PA_ALSA_REQUIRED_ANY && (has_switch || has_volume || has_enumeration))
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);
1329 case PA_ALSA_REQUIRED_SWITCH:
1330 e->path->req_any_present |= (e->switch_use != PA_ALSA_SWITCH_IGNORE);
1332 case PA_ALSA_REQUIRED_ENUMERATION:
1333 e->path->req_any_present |= (e->enumeration_use != PA_ALSA_ENUMERATION_IGNORE);
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);
1342 pa_assert_not_reached();
1346 if (e->enumeration_use == PA_ALSA_ENUMERATION_SELECT) {
1348 PA_LLIST_FOREACH(o, e->options) {
1349 e->path->req_any_present |= (o->required_any != PA_ALSA_REQUIRED_IGNORE) &&
1351 if (o->required != PA_ALSA_REQUIRED_IGNORE && o->alsa_idx < 0)
1353 if (o->required_absent != PA_ALSA_REQUIRED_IGNORE && o->alsa_idx >= 0)
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;
1369 SELEM_INIT(sid, e->alsa_name);
1371 if (!(me = snd_mixer_find_selem(m, sid))) {
1373 if (e->required != PA_ALSA_REQUIRED_IGNORE)
1376 e->switch_use = PA_ALSA_SWITCH_IGNORE;
1377 e->volume_use = PA_ALSA_VOLUME_IGNORE;
1378 e->enumeration_use = PA_ALSA_ENUMERATION_IGNORE;
1383 if (e->switch_use != PA_ALSA_SWITCH_IGNORE) {
1384 if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
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;
1390 e->switch_use = PA_ALSA_SWITCH_IGNORE;
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;
1399 e->switch_use = PA_ALSA_SWITCH_IGNORE;
1403 if (e->switch_use != PA_ALSA_SWITCH_IGNORE)
1404 e->direction_try_other = FALSE;
1407 if (e->volume_use != PA_ALSA_VOLUME_IGNORE) {
1409 if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
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;
1415 e->volume_use = PA_ALSA_VOLUME_IGNORE;
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;
1424 e->volume_use = PA_ALSA_VOLUME_IGNORE;
1428 if (e->volume_use != PA_ALSA_VOLUME_IGNORE) {
1429 long min_dB = 0, max_dB = 0;
1432 e->direction_try_other = FALSE;
1434 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1435 r = snd_mixer_selem_get_playback_volume_range(me, &e->min_volume, &e->max_volume);
1437 r = snd_mixer_selem_get_capture_volume_range(me, &e->min_volume, &e->max_volume);
1440 pa_log_warn("Failed to get volume range of %s: %s", e->alsa_name, pa_alsa_strerror(r));
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;
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;
1456 pa_channel_position_t p;
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);
1466 decibel_fix_free(e->db_fix);
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;
1479 e->has_dB = snd_mixer_selem_get_capture_dB_range(me, &min_dB, &max_dB) >= 0;
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;
1487 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1488 r = snd_mixer_selem_ask_playback_vol_dB(me, e->min_volume, &min_dB_checked);
1490 r = snd_mixer_selem_ask_capture_vol_dB(me, e->min_volume, &min_dB_checked);
1493 pa_log_warn("Failed to query the dB value for %s at volume level %li", e->alsa_name, e->min_volume);
1497 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1498 r = snd_mixer_selem_ask_playback_vol_dB(me, e->max_volume, &max_dB_checked);
1500 r = snd_mixer_selem_ask_capture_vol_dB(me, e->max_volume, &max_dB_checked);
1503 pa_log_warn("Failed to query the dB value for %s at volume level %li", e->alsa_name, e->max_volume);
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.",
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);
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));
1524 e->min_dB = ((double) min_dB) / 100.0;
1525 e->max_dB = ((double) max_dB) / 100.0;
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);
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);
1541 e->max_volume = e->volume_limit;
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;
1549 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1550 r = snd_mixer_selem_ask_playback_vol_dB(me, e->max_volume, &max_dB);
1552 r = snd_mixer_selem_ask_capture_vol_dB(me, e->max_volume, &max_dB);
1555 pa_log_warn("Failed to get dB value of %s: %s", e->alsa_name, pa_alsa_strerror(r));
1558 e->max_dB = ((double) max_dB) / 100.0;
1564 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1565 is_mono = snd_mixer_selem_is_playback_mono(me) > 0;
1567 is_mono = snd_mixer_selem_is_capture_mono(me) > 0;
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)
1577 e->masks[alsa_channel_ids[p]][e->n_channels-1] = 0;
1580 e->masks[SND_MIXER_SCHN_MONO][e->n_channels-1] = PA_CHANNEL_POSITION_MASK_ALL;
1583 e->merged_mask = e->masks[SND_MIXER_SCHN_MONO][e->n_channels-1];
1586 for (p = PA_CHANNEL_POSITION_FRONT_LEFT; p < PA_CHANNEL_POSITION_MAX; p++) {
1588 if (alsa_channel_ids[p] == SND_MIXER_SCHN_UNKNOWN)
1591 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1592 e->n_channels += snd_mixer_selem_has_playback_channel(me, alsa_channel_ids[p]) > 0;
1594 e->n_channels += snd_mixer_selem_has_capture_channel(me, alsa_channel_ids[p]) > 0;
1597 if (e->n_channels <= 0) {
1598 pa_log_warn("Volume element %s with no channels?", e->alsa_name);
1602 if (e->n_channels > 2) {
1603 /* FIXME: In some places code like this is used:
1605 * e->masks[alsa_channel_ids[p]][e->n_channels-1]
1607 * The definition of e->masks is
1609 * pa_channel_position_mask_t masks[SND_MIXER_SCHN_LAST + 1][2];
1611 * Since the array size is fixed at 2, we obviously
1612 * don't support elements with more than two
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);
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;
1622 if (alsa_channel_ids[p] == SND_MIXER_SCHN_UNKNOWN)
1625 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
1626 has_channel = snd_mixer_selem_has_playback_channel(me, alsa_channel_ids[p]) > 0;
1628 has_channel = snd_mixer_selem_has_capture_channel(me, alsa_channel_ids[p]) > 0;
1630 e->masks[alsa_channel_ids[p]][e->n_channels-1] = has_channel ? PA_CHANNEL_POSITION_MASK(p) : 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)
1639 e->merged_mask |= e->masks[alsa_channel_ids[p]][e->n_channels-1];
1647 if (e->switch_use == PA_ALSA_SWITCH_SELECT) {
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) {
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));
1661 PA_LLIST_FOREACH(o, e->options) {
1664 for (i = 0; i < n; i++) {
1667 if (snd_mixer_selem_get_enum_item_name(me, i, sizeof(buf), buf) < 0)
1670 if (!pa_streq(buf, o->alsa_name))
1678 if (check_required(e, me) < 0)
1684 static int jack_probe(pa_alsa_jack *j, snd_hctl_t *h) {
1689 j->has_control = pa_alsa_find_jack(h, j->alsa_name) != NULL;
1691 if (j->has_control) {
1692 if (j->required_absent != PA_ALSA_REQUIRED_IGNORE)
1694 if (j->required_any != PA_ALSA_REQUIRED_IGNORE)
1695 j->path->req_any_present = TRUE;
1697 if (j->required != PA_ALSA_REQUIRED_IGNORE)
1704 static pa_alsa_element* element_get(pa_alsa_path *p, const char *section, pa_bool_t prefixed) {
1711 if (!pa_startswith(section, "Element "))
1717 /* This is not an element section, but an enum section? */
1718 if (strchr(section, ':'))
1721 if (p->last_element && pa_streq(p->last_element->alsa_name, section))
1722 return p->last_element;
1724 PA_LLIST_FOREACH(e, p->elements)
1725 if (pa_streq(e->alsa_name, section))
1728 e = pa_xnew0(pa_alsa_element, 1);
1730 e->alsa_name = pa_xstrdup(section);
1731 e->direction = p->direction;
1732 e->volume_limit = -1;
1734 PA_LLIST_INSERT_AFTER(pa_alsa_element, p->elements, p->last_element, e);
1737 p->last_element = e;
1741 static pa_alsa_jack* jack_get(pa_alsa_path *p, const char *section) {
1744 if (!pa_startswith(section, "Jack "))
1748 if (p->last_jack && pa_streq(p->last_jack->name, section))
1749 return p->last_jack;
1751 PA_LLIST_FOREACH(j, p->jacks)
1752 if (pa_streq(j->name, section))
1755 j = pa_xnew0(pa_alsa_jack, 1);
1756 j->state_unplugged = PA_PORT_AVAILABLE_NO;
1757 j->state_plugged = PA_PORT_AVAILABLE_YES;
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);
1769 static pa_alsa_option* option_get(pa_alsa_path *p, const char *section) {
1775 if (!pa_startswith(section, "Option "))
1780 /* This is not an enum section, but an element section? */
1781 if (!(on = strchr(section, ':')))
1784 en = pa_xstrndup(section, on - section);
1787 if (p->last_option &&
1788 pa_streq(p->last_option->element->alsa_name, en) &&
1789 pa_streq(p->last_option->alsa_name, on)) {
1791 return p->last_option;
1794 pa_assert_se(e = element_get(p, en, FALSE));
1797 PA_LLIST_FOREACH(o, e->options)
1798 if (pa_streq(o->alsa_name, on))
1801 o = pa_xnew0(pa_alsa_option, 1);
1803 o->alsa_name = pa_xstrdup(on);
1806 if (p->last_option && p->last_option->element == e)
1807 PA_LLIST_INSERT_AFTER(pa_alsa_option, e->options, p->last_option, o);
1809 PA_LLIST_PREPEND(pa_alsa_option, e->options, o);
1816 static int element_parse_switch(pa_config_parser_state *state) {
1822 p = state->userdata;
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);
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;
1840 pa_log("[%s:%u] Switch invalid of '%s'", state->filename, state->lineno, state->section);
1847 static int element_parse_volume(pa_config_parser_state *state) {
1853 p = state->userdata;
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);
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;
1871 if (pa_atou(state->rvalue, &constant) >= 0) {
1872 e->volume_use = PA_ALSA_VOLUME_CONSTANT;
1873 e->constant_volume = constant;
1875 pa_log("[%s:%u] Volume invalid of '%s'", state->filename, state->lineno, state->section);
1883 static int element_parse_enumeration(pa_config_parser_state *state) {
1889 p = state->userdata;
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);
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;
1901 pa_log("[%s:%u] Enumeration invalid of '%s'", state->filename, state->lineno, state->section);
1908 static int option_parse_priority(pa_config_parser_state *state) {
1915 p = state->userdata;
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);
1922 if (pa_atou(state->rvalue, &prio) < 0) {
1923 pa_log("[%s:%u] Priority invalid of '%s'", state->filename, state->lineno, state->section);
1931 static int option_parse_name(pa_config_parser_state *state) {
1937 p = state->userdata;
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);
1945 o->name = pa_xstrdup(state->rvalue);
1950 static int element_parse_required(pa_config_parser_state *state) {
1955 pa_alsa_required_t req;
1959 p = state->userdata;
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);
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;
1980 pa_log("[%s:%u] Required invalid of '%s'", state->filename, state->lineno, state->section);
1984 if (pa_streq(state->lvalue, "required-absent")) {
1986 e->required_absent = req;
1988 o->required_absent = req;
1990 j->required_absent = req;
1992 else if (pa_streq(state->lvalue, "required-any")) {
1994 e->required_any = req;
1995 e->path->has_req_any |= (req != PA_ALSA_REQUIRED_IGNORE);
1998 o->required_any = req;
1999 o->element->path->has_req_any |= (req != PA_ALSA_REQUIRED_IGNORE);
2002 j->required_any = req;
2003 j->path->has_req_any |= (req != PA_ALSA_REQUIRED_IGNORE);
2019 static int element_parse_direction(pa_config_parser_state *state) {
2025 p = state->userdata;
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);
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;
2037 pa_log("[%s:%u] Direction invalid of '%s'", state->filename, state->lineno, state->section);
2044 static int element_parse_direction_try_other(pa_config_parser_state *state) {
2051 p = state->userdata;
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);
2058 if ((yes = pa_parse_boolean(state->rvalue)) < 0) {
2059 pa_log("[%s:%u] Direction invalid of '%s'", state->filename, state->lineno, state->section);
2063 e->direction_try_other = !!yes;
2067 static int element_parse_volume_limit(pa_config_parser_state *state) {
2074 p = state->userdata;
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);
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);
2086 e->volume_limit = volume_limit;
2090 static pa_channel_position_mask_t parse_mask(const char *m) {
2091 pa_channel_position_mask_t v;
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;
2112 pa_channel_position_t p;
2114 if ((p = pa_channel_position_from_string(m)) == PA_CHANNEL_POSITION_INVALID)
2117 v = PA_CHANNEL_POSITION_MASK(p);
2123 static int element_parse_override_map(pa_config_parser_state *state) {
2126 const char *split_state = NULL;
2132 p = state->userdata;
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);
2139 while ((n = pa_split(state->rvalue, ",", &split_state))) {
2140 pa_channel_position_mask_t m;
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);
2152 if (pa_streq(state->lvalue, "override-map.1"))
2153 e->masks[i++][0] = m;
2155 e->masks[i++][1] = m;
2157 /* Later on we might add override-map.3 and so on here ... */
2162 e->override_map = TRUE;
2167 static int jack_parse_state(pa_config_parser_state *state) {
2170 pa_port_available_t pa;
2174 p = state->userdata;
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);
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;
2188 pa_log("[%s:%u] state must be 'yes', 'no' or 'unknown' in '%s'", state->filename, state->lineno, state->section);
2192 if (pa_streq(state->lvalue, "state.unplugged"))
2193 j->state_unplugged = pa;
2195 j->state_plugged = pa;
2196 pa_assert(pa_streq(state->lvalue, "state.plugged"));
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;
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);
2216 if (e->switch_use == PA_ALSA_SWITCH_SELECT) {
2218 if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
2219 r = snd_mixer_selem_set_playback_switch_all(me, alsa_idx);
2221 r = snd_mixer_selem_set_capture_switch_all(me, alsa_idx);
2224 pa_log_warn("Failed to set switch of %s: %s", e->alsa_name, pa_alsa_strerror(errno));
2227 pa_assert(e->enumeration_use == PA_ALSA_ENUMERATION_SELECT);
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));
2236 static int setting_select(pa_alsa_setting *s, snd_mixer_t *m) {
2243 PA_IDXSET_FOREACH(o, s->options, idx)
2244 element_set_option(o->element, m, o->alsa_idx);
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") }
2278 pa_log("No name set for option %s", o->alsa_name);
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);
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);
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);
2305 static int element_verify(pa_alsa_element *e) {
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);
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);
2324 PA_LLIST_FOREACH(o, e->options)
2325 if (option_verify(o) < 0)
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-stereo-input", N_("Digital Input (S/PDIF)") },
2351 { "iec958-passthrough-output", N_("Digital Passthrough (S/PDIF)") }
2358 PA_LLIST_FOREACH(e, p->elements)
2359 if (element_verify(e) < 0)
2362 if (!p->description)
2363 p->description = pa_xstrdup(lookup_description(p->name,
2364 well_known_descriptions,
2365 PA_ELEMENTSOF(well_known_descriptions)));
2367 if (!p->description)
2368 p->description = pa_xstrdup(p->name);
2373 static const char *get_default_paths_dir(void) {
2374 if (pa_run_from_build_tree())
2375 return PA_BUILDDIR "/modules/alsa/mixer/paths/";
2377 return PA_ALSA_PATHS_DIR;
2380 pa_alsa_path* pa_alsa_path_new(const char *paths_dir, const char *fname, pa_alsa_direction_t direction) {
2385 bool mute_during_activation = false;
2387 pa_config_item items[] = {
2389 { "priority", pa_config_parse_unsigned, NULL, "General" },
2390 { "description", pa_config_parse_string, NULL, "General" },
2391 { "name", pa_config_parse_string, NULL, "General" },
2392 { "mute-during-activation", pa_config_parse_bool, NULL, "General" },
2395 { "priority", option_parse_priority, NULL, NULL },
2396 { "name", option_parse_name, NULL, NULL },
2399 { "state.plugged", jack_parse_state, NULL, NULL },
2400 { "state.unplugged", jack_parse_state, NULL, NULL },
2403 { "switch", element_parse_switch, NULL, NULL },
2404 { "volume", element_parse_volume, NULL, NULL },
2405 { "enumeration", element_parse_enumeration, NULL, NULL },
2406 { "override-map.1", element_parse_override_map, NULL, NULL },
2407 { "override-map.2", element_parse_override_map, NULL, NULL },
2408 /* ... later on we might add override-map.3 and so on here ... */
2409 { "required", element_parse_required, NULL, NULL },
2410 { "required-any", element_parse_required, NULL, NULL },
2411 { "required-absent", element_parse_required, NULL, NULL },
2412 { "direction", element_parse_direction, NULL, NULL },
2413 { "direction-try-other", element_parse_direction_try_other, NULL, NULL },
2414 { "volume-limit", element_parse_volume_limit, NULL, NULL },
2415 { NULL, NULL, NULL, NULL }
2420 p = pa_xnew0(pa_alsa_path, 1);
2421 n = pa_path_get_filename(fname);
2422 p->name = pa_xstrndup(n, strcspn(n, "."));
2423 p->proplist = pa_proplist_new();
2424 p->direction = direction;
2426 items[0].data = &p->priority;
2427 items[1].data = &p->description;
2428 items[2].data = &p->name;
2429 items[3].data = &mute_during_activation;
2432 paths_dir = get_default_paths_dir();
2434 fn = pa_maybe_prefix_path(fname, paths_dir);
2436 r = pa_config_parse(fn, NULL, items, p->proplist, p);
2442 p->mute_during_activation = mute_during_activation;
2444 if (path_verify(p) < 0)
2450 pa_alsa_path_free(p);
2454 pa_alsa_path *pa_alsa_path_synthesize(const char *element, pa_alsa_direction_t direction) {
2460 p = pa_xnew0(pa_alsa_path, 1);
2461 p->name = pa_xstrdup(element);
2462 p->direction = direction;
2464 e = pa_xnew0(pa_alsa_element, 1);
2466 e->alsa_name = pa_xstrdup(element);
2467 e->direction = direction;
2468 e->volume_limit = -1;
2470 e->switch_use = PA_ALSA_SWITCH_MUTE;
2471 e->volume_use = PA_ALSA_VOLUME_MERGE;
2473 PA_LLIST_PREPEND(pa_alsa_element, p->elements, e);
2474 p->last_element = e;
2478 static pa_bool_t element_drop_unsupported(pa_alsa_element *e) {
2479 pa_alsa_option *o, *n;
2483 for (o = e->options; o; o = n) {
2486 if (o->alsa_idx < 0) {
2487 PA_LLIST_REMOVE(pa_alsa_option, e->options, o);
2493 e->switch_use != PA_ALSA_SWITCH_IGNORE ||
2494 e->volume_use != PA_ALSA_VOLUME_IGNORE ||
2495 e->enumeration_use != PA_ALSA_ENUMERATION_IGNORE;
2498 static void path_drop_unsupported(pa_alsa_path *p) {
2499 pa_alsa_element *e, *n;
2503 for (e = p->elements; e; e = n) {
2506 if (!element_drop_unsupported(e)) {
2507 PA_LLIST_REMOVE(pa_alsa_element, p->elements, e);
2513 static void path_make_options_unique(pa_alsa_path *p) {
2515 pa_alsa_option *o, *u;
2517 PA_LLIST_FOREACH(e, p->elements) {
2518 PA_LLIST_FOREACH(o, e->options) {
2522 for (u = o->next; u; u = u->next)
2523 if (pa_streq(u->name, o->name))
2529 m = pa_xstrdup(o->name);
2531 /* OK, this name is not unique, hence let's rename */
2532 for (i = 1, u = o; u; u = u->next) {
2535 if (!pa_streq(u->name, m))
2538 nn = pa_sprintf_malloc("%s-%u", m, i);
2542 nd = pa_sprintf_malloc("%s %u", u->description, i);
2543 pa_xfree(u->description);
2544 u->description = nd;
2554 static pa_bool_t element_create_settings(pa_alsa_element *e, pa_alsa_setting *template) {
2557 for (; e; e = e->next)
2558 if (e->switch_use == PA_ALSA_SWITCH_SELECT ||
2559 e->enumeration_use == PA_ALSA_ENUMERATION_SELECT)
2565 for (o = e->options; o; o = o->next) {
2569 s = pa_xnewdup(pa_alsa_setting, template, 1);
2570 s->options = pa_idxset_copy(template->options);
2571 s->name = pa_sprintf_malloc("%s+%s", template->name, o->name);
2573 (template->description[0] && o->description[0])
2574 ? pa_sprintf_malloc("%s / %s", template->description, o->description)
2575 : (template->description[0]
2576 ? pa_xstrdup(template->description)
2577 : pa_xstrdup(o->description));
2579 s->priority = PA_MAX(template->priority, o->priority);
2581 s = pa_xnew0(pa_alsa_setting, 1);
2582 s->options = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
2583 s->name = pa_xstrdup(o->name);
2584 s->description = pa_xstrdup(o->description);
2585 s->priority = o->priority;
2588 pa_idxset_put(s->options, o, NULL);
2590 if (element_create_settings(e->next, s))
2591 /* This is not a leaf, so let's get rid of it */
2594 /* This is a leaf, so let's add it */
2595 PA_LLIST_INSERT_AFTER(pa_alsa_setting, e->path->settings, e->path->last_setting, s);
2597 e->path->last_setting = s;
2604 static void path_create_settings(pa_alsa_path *p) {
2607 element_create_settings(p->elements, NULL);
2610 int pa_alsa_path_probe(pa_alsa_path *p, snd_mixer_t *m, snd_hctl_t *hctl, pa_bool_t ignore_dB) {
2613 double min_dB[PA_CHANNEL_POSITION_MAX], max_dB[PA_CHANNEL_POSITION_MAX];
2614 pa_channel_position_t t;
2615 pa_channel_position_mask_t path_volume_channels = 0;
2621 return p->supported ? 0 : -1;
2627 pa_log_debug("Probing path '%s'", p->name);
2629 PA_LLIST_FOREACH(j, p->jacks) {
2630 if (jack_probe(j, hctl) < 0) {
2631 p->supported = FALSE;
2632 pa_log_debug("Probe of jack '%s' failed.", j->alsa_name);
2635 pa_log_debug("Probe of jack '%s' succeeded (%s)", j->alsa_name, j->has_control ? "found!" : "not found");
2638 PA_LLIST_FOREACH(e, p->elements) {
2639 if (element_probe(e, m) < 0) {
2640 p->supported = FALSE;
2641 pa_log_debug("Probe of element '%s' failed.", e->alsa_name);
2644 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);
2649 if (e->volume_use == PA_ALSA_VOLUME_MERGE) {
2651 if (!p->has_volume) {
2652 p->min_volume = e->min_volume;
2653 p->max_volume = e->max_volume;
2657 if (!p->has_volume) {
2658 for (t = 0; t < PA_CHANNEL_POSITION_MAX; t++)
2659 if (PA_CHANNEL_POSITION_MASK(t) & e->merged_mask) {
2660 min_dB[t] = e->min_dB;
2661 max_dB[t] = e->max_dB;
2662 path_volume_channels |= PA_CHANNEL_POSITION_MASK(t);
2669 for (t = 0; t < PA_CHANNEL_POSITION_MAX; t++)
2670 if (PA_CHANNEL_POSITION_MASK(t) & e->merged_mask) {
2671 min_dB[t] += e->min_dB;
2672 max_dB[t] += e->max_dB;
2673 path_volume_channels |= PA_CHANNEL_POSITION_MASK(t);
2676 /* Hmm, there's another element before us
2677 * which cannot do dB volumes, so we we need
2678 * to 'neutralize' this slider */
2679 e->volume_use = PA_ALSA_VOLUME_ZERO;
2680 pa_log_info("Zeroing volume of '%s' on path '%s'", e->alsa_name, p->name);
2683 } else if (p->has_volume) {
2684 /* We can't use this volume, so let's ignore it */
2685 e->volume_use = PA_ALSA_VOLUME_IGNORE;
2686 pa_log_info("Ignoring volume of '%s' on path '%s' (missing dB info)", e->alsa_name, p->name);
2688 p->has_volume = TRUE;
2691 if (e->switch_use == PA_ALSA_SWITCH_MUTE)
2695 if (p->has_req_any && !p->req_any_present) {
2696 p->supported = FALSE;
2697 pa_log_debug("Skipping path '%s', none of required-any elements preset.", p->name);
2701 path_drop_unsupported(p);
2702 path_make_options_unique(p);
2703 path_create_settings(p);
2705 p->supported = TRUE;
2707 p->min_dB = INFINITY;
2708 p->max_dB = -INFINITY;
2710 for (t = 0; t < PA_CHANNEL_POSITION_MAX; t++) {
2711 if (path_volume_channels & PA_CHANNEL_POSITION_MASK(t)) {
2712 if (p->min_dB > min_dB[t])
2713 p->min_dB = min_dB[t];
2715 if (p->max_dB < max_dB[t])
2716 p->max_dB = max_dB[t];
2723 void pa_alsa_setting_dump(pa_alsa_setting *s) {
2726 pa_log_debug("Setting %s (%s) priority=%u",
2728 pa_strnull(s->description),
2732 void pa_alsa_jack_dump(pa_alsa_jack *j) {
2735 pa_log_debug("Jack %s, alsa_name='%s', detection %s", j->name, j->alsa_name, j->has_control ? "possible" : "unavailable");
2738 void pa_alsa_option_dump(pa_alsa_option *o) {
2741 pa_log_debug("Option %s (%s/%s) index=%i, priority=%u",
2743 pa_strnull(o->name),
2744 pa_strnull(o->description),
2749 void pa_alsa_element_dump(pa_alsa_element *e) {
2753 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",
2763 (long long unsigned) e->merged_mask,
2765 pa_yes_no(e->override_map));
2767 PA_LLIST_FOREACH(o, e->options)
2768 pa_alsa_option_dump(o);
2771 void pa_alsa_path_dump(pa_alsa_path *p) {
2777 pa_log_debug("Path %s (%s), direction=%i, priority=%u, probed=%s, supported=%s, has_mute=%s, has_volume=%s, "
2778 "has_dB=%s, min_volume=%li, max_volume=%li, min_dB=%g, max_dB=%g",
2780 pa_strnull(p->description),
2783 pa_yes_no(p->probed),
2784 pa_yes_no(p->supported),
2785 pa_yes_no(p->has_mute),
2786 pa_yes_no(p->has_volume),
2787 pa_yes_no(p->has_dB),
2788 p->min_volume, p->max_volume,
2789 p->min_dB, p->max_dB);
2791 PA_LLIST_FOREACH(e, p->elements)
2792 pa_alsa_element_dump(e);
2794 PA_LLIST_FOREACH(j, p->jacks)
2795 pa_alsa_jack_dump(j);
2797 PA_LLIST_FOREACH(s, p->settings)
2798 pa_alsa_setting_dump(s);
2801 static void element_set_callback(pa_alsa_element *e, snd_mixer_t *m, snd_mixer_elem_callback_t cb, void *userdata) {
2802 snd_mixer_selem_id_t *sid;
2803 snd_mixer_elem_t *me;
2809 SELEM_INIT(sid, e->alsa_name);
2810 if (!(me = snd_mixer_find_selem(m, sid))) {
2811 pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
2815 snd_mixer_elem_set_callback(me, cb);
2816 snd_mixer_elem_set_callback_private(me, userdata);
2819 void pa_alsa_path_set_callback(pa_alsa_path *p, snd_mixer_t *m, snd_mixer_elem_callback_t cb, void *userdata) {
2826 PA_LLIST_FOREACH(e, p->elements)
2827 element_set_callback(e, m, cb, userdata);
2830 void pa_alsa_path_set_set_callback(pa_alsa_path_set *ps, snd_mixer_t *m, snd_mixer_elem_callback_t cb, void *userdata) {
2838 PA_HASHMAP_FOREACH(p, ps->paths, state)
2839 pa_alsa_path_set_callback(p, m, cb, userdata);
2842 pa_alsa_path_set *pa_alsa_path_set_new(pa_alsa_mapping *m, pa_alsa_direction_t direction, const char *paths_dir) {
2843 pa_alsa_path_set *ps;
2844 char **pn = NULL, **en = NULL, **ie;
2845 pa_alsa_decibel_fix *db_fix;
2846 void *state, *state2;
2850 pa_assert(m->profile_set);
2851 pa_assert(m->profile_set->decibel_fixes);
2852 pa_assert(direction == PA_ALSA_DIRECTION_OUTPUT || direction == PA_ALSA_DIRECTION_INPUT);
2854 if (m->direction != PA_ALSA_DIRECTION_ANY && m->direction != direction)
2857 ps = pa_xnew0(pa_alsa_path_set, 1);
2858 ps->direction = direction;
2859 ps->paths = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
2861 if (direction == PA_ALSA_DIRECTION_OUTPUT) {
2862 pn = m->output_path_names;
2863 cache = m->profile_set->output_paths;
2865 else if (direction == PA_ALSA_DIRECTION_INPUT) {
2866 pn = m->input_path_names;
2867 cache = m->profile_set->input_paths;
2873 for (in = pn; *in; in++) {
2874 pa_alsa_path *p = NULL;
2875 pa_bool_t duplicate = FALSE;
2878 for (kn = pn; kn < in; kn++)
2879 if (pa_streq(*kn, *in)) {
2887 p = pa_hashmap_get(cache, *in);
2889 char *fn = pa_sprintf_malloc("%s.conf", *in);
2890 p = pa_alsa_path_new(paths_dir, fn, direction);
2893 pa_hashmap_put(cache, *in, p);
2895 pa_assert(pa_hashmap_get(cache, *in) == p);
2897 pa_hashmap_put(ps->paths, p, p);
2904 if (direction == PA_ALSA_DIRECTION_OUTPUT)
2905 en = m->output_element;
2906 else if (direction == PA_ALSA_DIRECTION_INPUT)
2907 en = m->input_element;
2910 pa_alsa_path_set_free(ps);
2914 for (ie = en; *ie; ie++) {
2918 p = pa_alsa_path_synthesize(*ie, direction);
2920 /* Mark all other passed elements for require-absent */
2921 for (je = en; *je; je++) {
2927 e = pa_xnew0(pa_alsa_element, 1);
2929 e->alsa_name = pa_xstrdup(*je);
2930 e->direction = direction;
2931 e->required_absent = PA_ALSA_REQUIRED_ANY;
2932 e->volume_limit = -1;
2934 PA_LLIST_INSERT_AFTER(pa_alsa_element, p->elements, p->last_element, e);
2935 p->last_element = e;
2938 pa_hashmap_put(ps->paths, *ie, p);
2942 /* Assign decibel fixes to elements. */
2943 PA_HASHMAP_FOREACH(db_fix, m->profile_set->decibel_fixes, state) {
2946 PA_HASHMAP_FOREACH(p, ps->paths, state2) {
2949 PA_LLIST_FOREACH(e, p->elements) {
2950 if (e->volume_use != PA_ALSA_VOLUME_IGNORE && pa_streq(db_fix->name, e->alsa_name)) {
2951 /* The profile set that contains the dB fix may be freed
2952 * before the element, so we have to copy the dB fix
2954 e->db_fix = pa_xnewdup(pa_alsa_decibel_fix, db_fix, 1);
2955 e->db_fix->profile_set = NULL;
2956 e->db_fix->name = pa_xstrdup(db_fix->name);
2957 e->db_fix->db_values = pa_xmemdup(db_fix->db_values, (db_fix->max_step - db_fix->min_step + 1) * sizeof(long));
2966 void pa_alsa_path_set_dump(pa_alsa_path_set *ps) {
2971 pa_log_debug("Path Set %p, direction=%i",
2975 PA_HASHMAP_FOREACH(p, ps->paths, state)
2976 pa_alsa_path_dump(p);
2980 static pa_bool_t options_have_option(pa_alsa_option *options, const char *alsa_name) {
2984 pa_assert(alsa_name);
2986 PA_LLIST_FOREACH(o, options) {
2987 if (pa_streq(o->alsa_name, alsa_name))
2993 static pa_bool_t enumeration_is_subset(pa_alsa_option *a_options, pa_alsa_option *b_options) {
2994 pa_alsa_option *oa, *ob;
2996 if (!a_options) return TRUE;
2997 if (!b_options) return FALSE;
2999 /* If there is an option A offers that B does not, then A is not a subset of B. */
3000 PA_LLIST_FOREACH(oa, a_options) {
3001 pa_bool_t found = FALSE;
3002 PA_LLIST_FOREACH(ob, b_options) {
3003 if (pa_streq(oa->alsa_name, ob->alsa_name)) {
3015 * Compares two elements to see if a is a subset of b
3017 static pa_bool_t element_is_subset(pa_alsa_element *a, pa_alsa_element *b, snd_mixer_t *m) {
3023 * Every state is a subset of itself (with caveats for volume_limits and options)
3024 * IGNORE is a subset of every other state */
3026 /* Check the volume_use */
3027 if (a->volume_use != PA_ALSA_VOLUME_IGNORE) {
3029 /* "Constant" is subset of "Constant" only when their constant values are equal */
3030 if (a->volume_use == PA_ALSA_VOLUME_CONSTANT && b->volume_use == PA_ALSA_VOLUME_CONSTANT && a->constant_volume != b->constant_volume)
3033 /* Different volume uses when b is not "Merge" means we are definitely not a subset */
3034 if (a->volume_use != b->volume_use && b->volume_use != PA_ALSA_VOLUME_MERGE)
3037 /* "Constant" is a subset of "Merge", if there is not a "volume-limit" in "Merge" below the actual constant.
3038 * "Zero" and "Off" are just special cases of "Constant" when comparing to "Merge"
3039 * "Merge" with a "volume-limit" is a subset of "Merge" without a "volume-limit" or with a higher "volume-limit" */
3040 if (b->volume_use == PA_ALSA_VOLUME_MERGE && b->volume_limit >= 0) {
3043 if (a->volume_use == PA_ALSA_VOLUME_CONSTANT)
3044 a_limit = a->constant_volume;
3045 else if (a->volume_use == PA_ALSA_VOLUME_ZERO) {
3049 int rounding = (a->direction == PA_ALSA_DIRECTION_OUTPUT ? +1 : -1);
3050 a_limit = decibel_fix_get_step(a->db_fix, &dB, rounding);
3052 snd_mixer_selem_id_t *sid;
3053 snd_mixer_elem_t *me;
3055 SELEM_INIT(sid, a->alsa_name);
3056 if (!(me = snd_mixer_find_selem(m, sid))) {
3057 pa_log_warn("Element %s seems to have disappeared.", a->alsa_name);
3061 if (a->direction == PA_ALSA_DIRECTION_OUTPUT) {
3062 if (snd_mixer_selem_ask_playback_dB_vol(me, dB, +1, &a_limit) < 0)
3065 if (snd_mixer_selem_ask_capture_dB_vol(me, dB, -1, &a_limit) < 0)
3069 } else if (a->volume_use == PA_ALSA_VOLUME_OFF)
3070 a_limit = a->min_volume;
3071 else if (a->volume_use == PA_ALSA_VOLUME_MERGE)
3072 a_limit = a->volume_limit;
3074 /* This should never be reached */
3077 if (a_limit > b->volume_limit)
3081 if (a->volume_use == PA_ALSA_VOLUME_MERGE) {
3083 /* If override-maps are different, they're not subsets */
3084 if (a->n_channels != b->n_channels)
3086 for (s = 0; s <= SND_MIXER_SCHN_LAST; s++)
3087 if (a->masks[s][a->n_channels-1] != b->masks[s][b->n_channels-1]) {
3088 pa_log_debug("Element %s is not a subset - mask a: 0x%" PRIx64 ", mask b: 0x%" PRIx64 ", at channel %d",
3089 a->alsa_name, a->masks[s][a->n_channels-1], b->masks[s][b->n_channels-1], s);
3095 if (a->switch_use != PA_ALSA_SWITCH_IGNORE) {
3096 /* "On" is a subset of "Mute".
3097 * "Off" is a subset of "Mute".
3098 * "On" is a subset of "Select", if there is an "Option:On" in B.
3099 * "Off" is a subset of "Select", if there is an "Option:Off" in B.
3100 * "Select" is a subset of "Select", if they have the same options (is this always true?). */
3102 if (a->switch_use != b->switch_use) {
3104 if (a->switch_use == PA_ALSA_SWITCH_SELECT || a->switch_use == PA_ALSA_SWITCH_MUTE
3105 || b->switch_use == PA_ALSA_SWITCH_OFF || b->switch_use == PA_ALSA_SWITCH_ON)
3108 if (b->switch_use == PA_ALSA_SWITCH_SELECT) {
3109 if (a->switch_use == PA_ALSA_SWITCH_ON) {
3110 if (!options_have_option(b->options, "on"))
3112 } else if (a->switch_use == PA_ALSA_SWITCH_OFF) {
3113 if (!options_have_option(b->options, "off"))
3117 } else if (a->switch_use == PA_ALSA_SWITCH_SELECT) {
3118 if (!enumeration_is_subset(a->options, b->options))
3123 if (a->enumeration_use != PA_ALSA_ENUMERATION_IGNORE) {
3124 if (b->enumeration_use == PA_ALSA_ENUMERATION_IGNORE)
3126 if (!enumeration_is_subset(a->options, b->options))
3133 static void path_set_condense(pa_alsa_path_set *ps, snd_mixer_t *m) {
3140 /* If we only have one path, then don't bother */
3141 if (pa_hashmap_size(ps->paths) < 2)
3144 PA_HASHMAP_FOREACH(p, ps->paths, state) {
3148 PA_HASHMAP_FOREACH(p2, ps->paths, state2) {
3149 pa_alsa_element *ea, *eb;
3150 pa_alsa_jack *ja, *jb;
3151 pa_bool_t is_subset = TRUE;
3156 /* If a has a jack that b does not have, a is not a subset */
3157 PA_LLIST_FOREACH(ja, p->jacks) {
3158 pa_bool_t exists = FALSE;
3160 if (!ja->has_control)
3163 PA_LLIST_FOREACH(jb, p2->jacks) {
3164 if (jb->has_control && pa_streq(jb->alsa_name, ja->alsa_name) &&
3165 (ja->state_plugged == jb->state_plugged) &&
3166 (ja->state_unplugged == jb->state_unplugged)) {
3178 /* Compare the elements of each set... */
3179 pa_assert_se(ea = p->elements);
3180 pa_assert_se(eb = p2->elements);
3183 if (pa_streq(ea->alsa_name, eb->alsa_name)) {
3184 if (element_is_subset(ea, eb, m)) {
3187 if ((ea && !eb) || (!ea && eb))
3189 else if (!ea && !eb)
3199 pa_log_debug("Removing path '%s' as it is a subset of '%s'.", p->name, p2->name);
3200 pa_hashmap_remove(ps->paths, p);
3207 static pa_alsa_path* path_set_find_path_by_name(pa_alsa_path_set *ps, const char* name, pa_alsa_path *ignore)
3212 PA_HASHMAP_FOREACH(p, ps->paths, state)
3213 if (p != ignore && pa_streq(p->name, name))
3218 static void path_set_make_paths_unique(pa_alsa_path_set *ps) {
3219 pa_alsa_path *p, *q;
3220 void *state, *state2;
3222 PA_HASHMAP_FOREACH(p, ps->paths, state) {
3226 q = path_set_find_path_by_name(ps, p->name, p);
3231 m = pa_xstrdup(p->name);
3233 /* OK, this name is not unique, hence let's rename */
3235 PA_HASHMAP_FOREACH(q, ps->paths, state2) {
3238 if (!pa_streq(q->name, m))
3241 nn = pa_sprintf_malloc("%s-%u", m, i);
3245 nd = pa_sprintf_malloc("%s %u", q->description, i);
3246 pa_xfree(q->description);
3247 q->description = nd;
3256 static void mapping_free(pa_alsa_mapping *m) {
3260 pa_xfree(m->description);
3262 pa_proplist_free(m->proplist);
3264 pa_xstrfreev(m->device_strings);
3265 pa_xstrfreev(m->input_path_names);
3266 pa_xstrfreev(m->output_path_names);
3267 pa_xstrfreev(m->input_element);
3268 pa_xstrfreev(m->output_element);
3269 if (m->input_path_set)
3270 pa_alsa_path_set_free(m->input_path_set);
3271 if (m->output_path_set)
3272 pa_alsa_path_set_free(m->output_path_set);
3274 pa_assert(!m->input_pcm);
3275 pa_assert(!m->output_pcm);
3277 pa_alsa_ucm_mapping_context_free(&m->ucm_context);
3282 static void profile_free(pa_alsa_profile *p) {
3286 pa_xfree(p->description);
3288 pa_xstrfreev(p->input_mapping_names);
3289 pa_xstrfreev(p->output_mapping_names);
3291 if (p->input_mappings)
3292 pa_idxset_free(p->input_mappings, NULL, NULL);
3294 if (p->output_mappings)
3295 pa_idxset_free(p->output_mappings, NULL, NULL);
3300 void pa_alsa_profile_set_free(pa_alsa_profile_set *ps) {
3303 if (ps->input_paths) {
3306 while ((p = pa_hashmap_steal_first(ps->input_paths)))
3307 pa_alsa_path_free(p);
3309 pa_hashmap_free(ps->input_paths, NULL, NULL);
3312 if (ps->output_paths) {
3315 while ((p = pa_hashmap_steal_first(ps->output_paths)))
3316 pa_alsa_path_free(p);
3318 pa_hashmap_free(ps->output_paths, NULL, NULL);
3324 while ((p = pa_hashmap_steal_first(ps->profiles)))
3327 pa_hashmap_free(ps->profiles, NULL, NULL);
3333 while ((m = pa_hashmap_steal_first(ps->mappings)))
3336 pa_hashmap_free(ps->mappings, NULL, NULL);
3339 if (ps->decibel_fixes) {
3340 pa_alsa_decibel_fix *db_fix;
3342 while ((db_fix = pa_hashmap_steal_first(ps->decibel_fixes)))
3343 decibel_fix_free(db_fix);
3345 pa_hashmap_free(ps->decibel_fixes, NULL, NULL);
3351 pa_alsa_mapping *pa_alsa_mapping_get(pa_alsa_profile_set *ps, const char *name) {
3354 if (!pa_startswith(name, "Mapping "))
3359 if ((m = pa_hashmap_get(ps->mappings, name)))
3362 m = pa_xnew0(pa_alsa_mapping, 1);
3363 m->profile_set = ps;
3364 m->name = pa_xstrdup(name);
3365 pa_channel_map_init(&m->channel_map);
3366 m->proplist = pa_proplist_new();
3368 pa_hashmap_put(ps->mappings, m->name, m);
3373 static pa_alsa_profile *profile_get(pa_alsa_profile_set *ps, const char *name) {
3376 if (!pa_startswith(name, "Profile "))
3381 if ((p = pa_hashmap_get(ps->profiles, name)))
3384 p = pa_xnew0(pa_alsa_profile, 1);
3385 p->profile_set = ps;
3386 p->name = pa_xstrdup(name);
3388 pa_hashmap_put(ps->profiles, p->name, p);
3393 static pa_alsa_decibel_fix *decibel_fix_get(pa_alsa_profile_set *ps, const char *name) {
3394 pa_alsa_decibel_fix *db_fix;
3396 if (!pa_startswith(name, "DecibelFix "))
3401 if ((db_fix = pa_hashmap_get(ps->decibel_fixes, name)))
3404 db_fix = pa_xnew0(pa_alsa_decibel_fix, 1);
3405 db_fix->profile_set = ps;
3406 db_fix->name = pa_xstrdup(name);
3408 pa_hashmap_put(ps->decibel_fixes, db_fix->name, db_fix);
3413 static int mapping_parse_device_strings(pa_config_parser_state *state) {
3414 pa_alsa_profile_set *ps;
3419 ps = state->userdata;
3421 if (!(m = pa_alsa_mapping_get(ps, state->section))) {
3422 pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section);
3426 pa_xstrfreev(m->device_strings);
3427 if (!(m->device_strings = pa_split_spaces_strv(state->rvalue))) {
3428 pa_log("[%s:%u] Device string list empty of '%s'", state->filename, state->lineno, state->section);
3435 static int mapping_parse_channel_map(pa_config_parser_state *state) {
3436 pa_alsa_profile_set *ps;
3441 ps = state->userdata;
3443 if (!(m = pa_alsa_mapping_get(ps, state->section))) {
3444 pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section);
3448 if (!(pa_channel_map_parse(&m->channel_map, state->rvalue))) {
3449 pa_log("[%s:%u] Channel map invalid of '%s'", state->filename, state->lineno, state->section);
3456 static int mapping_parse_paths(pa_config_parser_state *state) {
3457 pa_alsa_profile_set *ps;
3462 ps = state->userdata;
3464 if (!(m = pa_alsa_mapping_get(ps, state->section))) {
3465 pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section);
3469 if (pa_streq(state->lvalue, "paths-input")) {
3470 pa_xstrfreev(m->input_path_names);
3471 m->input_path_names = pa_split_spaces_strv(state->rvalue);
3473 pa_xstrfreev(m->output_path_names);
3474 m->output_path_names = pa_split_spaces_strv(state->rvalue);
3480 static int mapping_parse_element(pa_config_parser_state *state) {
3481 pa_alsa_profile_set *ps;
3486 ps = state->userdata;
3488 if (!(m = pa_alsa_mapping_get(ps, state->section))) {
3489 pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section);
3493 if (pa_streq(state->lvalue, "element-input")) {
3494 pa_xstrfreev(m->input_element);
3495 m->input_element = pa_split_spaces_strv(state->rvalue);
3497 pa_xstrfreev(m->output_element);
3498 m->output_element = pa_split_spaces_strv(state->rvalue);
3504 static int mapping_parse_direction(pa_config_parser_state *state) {
3505 pa_alsa_profile_set *ps;
3510 ps = state->userdata;
3512 if (!(m = pa_alsa_mapping_get(ps, state->section))) {
3513 pa_log("[%s:%u] Section name %s invalid.", state->filename, state->lineno, state->section);
3517 if (pa_streq(state->rvalue, "input"))
3518 m->direction = PA_ALSA_DIRECTION_INPUT;
3519 else if (pa_streq(state->rvalue, "output"))
3520 m->direction = PA_ALSA_DIRECTION_OUTPUT;
3521 else if (pa_streq(state->rvalue, "any"))
3522 m->direction = PA_ALSA_DIRECTION_ANY;
3524 pa_log("[%s:%u] Direction %s invalid.", state->filename, state->lineno, state->rvalue);
3531 static int mapping_parse_description(pa_config_parser_state *state) {
3532 pa_alsa_profile_set *ps;
3538 ps = state->userdata;
3540 if ((m = pa_alsa_mapping_get(ps, state->section))) {
3541 pa_xfree(m->description);
3542 m->description = pa_xstrdup(state->rvalue);
3543 } else if ((p = profile_get(ps, state->section))) {
3544 pa_xfree(p->description);
3545 p->description = pa_xstrdup(state->rvalue);
3547 pa_log("[%s:%u] Section name %s invalid.", state->filename, state->lineno, state->section);
3554 static int mapping_parse_priority(pa_config_parser_state *state) {
3555 pa_alsa_profile_set *ps;
3562 ps = state->userdata;
3564 if (pa_atou(state->rvalue, &prio) < 0) {
3565 pa_log("[%s:%u] Priority invalid of '%s'", state->filename, state->lineno, state->section);
3569 if ((m = pa_alsa_mapping_get(ps, state->section)))
3571 else if ((p = profile_get(ps, state->section)))
3574 pa_log("[%s:%u] Section name %s invalid.", state->filename, state->lineno, state->section);
3581 static int profile_parse_mappings(pa_config_parser_state *state) {
3582 pa_alsa_profile_set *ps;
3587 ps = state->userdata;
3589 if (!(p = profile_get(ps, state->section))) {
3590 pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section);
3594 if (pa_streq(state->lvalue, "input-mappings")) {
3595 pa_xstrfreev(p->input_mapping_names);
3596 p->input_mapping_names = pa_split_spaces_strv(state->rvalue);
3598 pa_xstrfreev(p->output_mapping_names);
3599 p->output_mapping_names = pa_split_spaces_strv(state->rvalue);
3605 static int profile_parse_skip_probe(pa_config_parser_state *state) {
3606 pa_alsa_profile_set *ps;
3612 ps = state->userdata;
3614 if (!(p = profile_get(ps, state->section))) {
3615 pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section);
3619 if ((b = pa_parse_boolean(state->rvalue)) < 0) {
3620 pa_log("[%s:%u] Skip probe invalid of '%s'", state->filename, state->lineno, state->section);
3629 static int decibel_fix_parse_db_values(pa_config_parser_state *state) {
3630 pa_alsa_profile_set *ps;
3631 pa_alsa_decibel_fix *db_fix;
3635 unsigned n = 8; /* Current size of the db_values table. */
3636 unsigned min_step = 0;
3637 unsigned max_step = 0;
3638 unsigned i = 0; /* Index to the items table. */
3639 unsigned prev_step = 0;
3644 ps = state->userdata;
3646 if (!(db_fix = decibel_fix_get(ps, state->section))) {
3647 pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section);
3651 if (!(items = pa_split_spaces_strv(state->rvalue))) {
3652 pa_log("[%s:%u] Value missing", state->filename, state->lineno);
3656 db_values = pa_xnew(long, n);
3658 while ((item = items[i++])) {
3659 char *s = item; /* Step value string. */
3660 char *d = item; /* dB value string. */
3664 /* Move d forward until it points to a colon or to the end of the item. */
3665 for (; *d && *d != ':'; ++d);
3668 /* item started with colon. */
3669 pa_log("[%s:%u] No step value found in %s", state->filename, state->lineno, item);
3673 if (!*d || !*(d + 1)) {
3674 /* No colon found, or it was the last character in item. */
3675 pa_log("[%s:%u] No dB value found in %s", state->filename, state->lineno, item);
3679 /* pa_atou() needs a null-terminating string. Let's replace the colon
3680 * with a zero byte. */
3683 if (pa_atou(s, &step) < 0) {
3684 pa_log("[%s:%u] Invalid step value: %s", state->filename, state->lineno, s);
3688 if (pa_atod(d, &db) < 0) {
3689 pa_log("[%s:%u] Invalid dB value: %s", state->filename, state->lineno, d);
3693 if (step <= prev_step && i != 1) {
3694 pa_log("[%s:%u] Step value %u not greater than the previous value %u", state->filename, state->lineno, step, prev_step);
3698 if (db < prev_db && i != 1) {
3699 pa_log("[%s:%u] Decibel value %0.2f less than the previous value %0.2f", state->filename, state->lineno, db, prev_db);
3705 db_values[0] = (long) (db * 100.0);
3709 /* Interpolate linearly. */
3710 double db_increment = (db - prev_db) / (step - prev_step);
3712 for (; prev_step < step; ++prev_step, prev_db += db_increment) {
3714 /* Reallocate the db_values table if it's about to overflow. */
3715 if (prev_step + 1 - min_step == n) {
3717 db_values = pa_xrenew(long, db_values, n);
3720 db_values[prev_step + 1 - min_step] = (long) ((prev_db + db_increment) * 100.0);
3727 db_fix->min_step = min_step;
3728 db_fix->max_step = max_step;
3729 pa_xfree(db_fix->db_values);
3730 db_fix->db_values = db_values;
3732 pa_xstrfreev(items);
3737 pa_xstrfreev(items);
3738 pa_xfree(db_values);
3743 static void mapping_paths_probe(pa_alsa_mapping *m, pa_alsa_profile *profile,
3744 pa_alsa_direction_t direction) {
3748 snd_pcm_t *pcm_handle;
3749 pa_alsa_path_set *ps;
3750 snd_mixer_t *mixer_handle;
3751 snd_hctl_t *hctl_handle;
3753 if (direction == PA_ALSA_DIRECTION_OUTPUT) {
3754 if (m->output_path_set)
3755 return; /* Already probed */
3756 m->output_path_set = ps = pa_alsa_path_set_new(m, direction, NULL); /* FIXME: Handle paths_dir */
3757 pcm_handle = m->output_pcm;
3759 if (m->input_path_set)
3760 return; /* Already probed */
3761 m->input_path_set = ps = pa_alsa_path_set_new(m, direction, NULL); /* FIXME: Handle paths_dir */
3762 pcm_handle = m->input_pcm;
3766 return; /* No paths */
3768 pa_assert(pcm_handle);
3770 mixer_handle = pa_alsa_open_mixer_for_pcm(pcm_handle, NULL, &hctl_handle);
3771 if (!mixer_handle || !hctl_handle) {
3772 /* Cannot open mixer, remove all entries */
3773 while (pa_hashmap_steal_first(ps->paths));
3778 PA_HASHMAP_FOREACH(p, ps->paths, state) {
3779 if (pa_alsa_path_probe(p, mixer_handle, hctl_handle, m->profile_set->ignore_dB) < 0) {
3780 pa_hashmap_remove(ps->paths, p);
3784 path_set_condense(ps, mixer_handle);
3785 path_set_make_paths_unique(ps);
3788 snd_mixer_close(mixer_handle);
3790 pa_log_debug("Available mixer paths (after tidying):");
3791 pa_alsa_path_set_dump(ps);
3794 static int mapping_verify(pa_alsa_mapping *m, const pa_channel_map *bonus) {
3796 static const struct description_map well_known_descriptions[] = {
3797 { "analog-mono", N_("Analog Mono") },
3798 { "analog-stereo", N_("Analog Stereo") },
3799 { "analog-surround-21", N_("Analog Surround 2.1") },
3800 { "analog-surround-30", N_("Analog Surround 3.0") },
3801 { "analog-surround-31", N_("Analog Surround 3.1") },
3802 { "analog-surround-40", N_("Analog Surround 4.0") },
3803 { "analog-surround-41", N_("Analog Surround 4.1") },
3804 { "analog-surround-50", N_("Analog Surround 5.0") },
3805 { "analog-surround-51", N_("Analog Surround 5.1") },
3806 { "analog-surround-61", N_("Analog Surround 6.0") },
3807 { "analog-surround-61", N_("Analog Surround 6.1") },
3808 { "analog-surround-70", N_("Analog Surround 7.0") },
3809 { "analog-surround-71", N_("Analog Surround 7.1") },
3810 { "analog-4-channel-input", N_("Analog 4-channel Input") },
3811 { "iec958-stereo", N_("Digital Stereo (IEC958)") },
3812 { "iec958-passthrough", N_("Digital Passthrough (IEC958)") },
3813 { "iec958-ac3-surround-40", N_("Digital Surround 4.0 (IEC958/AC3)") },
3814 { "iec958-ac3-surround-51", N_("Digital Surround 5.1 (IEC958/AC3)") },
3815 { "iec958-dts-surround-51", N_("Digital Surround 5.1 (IEC958/DTS)") },
3816 { "hdmi-stereo", N_("Digital Stereo (HDMI)") },
3817 { "hdmi-surround-51", N_("Digital Surround 5.1 (HDMI)") }
3822 if (!pa_channel_map_valid(&m->channel_map)) {
3823 pa_log("Mapping %s is missing channel map.", m->name);
3827 if (!m->device_strings) {
3828 pa_log("Mapping %s is missing device strings.", m->name);
3832 if ((m->input_path_names && m->input_element) ||
3833 (m->output_path_names && m->output_element)) {
3834 pa_log("Mapping %s must have either mixer path or mixer element, not both.", m->name);
3838 if (!m->description)
3839 m->description = pa_xstrdup(lookup_description(m->name,
3840 well_known_descriptions,
3841 PA_ELEMENTSOF(well_known_descriptions)));
3843 if (!m->description)
3844 m->description = pa_xstrdup(m->name);
3847 if (pa_channel_map_equal(&m->channel_map, bonus))
3849 else if (m->channel_map.channels == bonus->channels)
3856 void pa_alsa_mapping_dump(pa_alsa_mapping *m) {
3857 char cm[PA_CHANNEL_MAP_SNPRINT_MAX];
3861 pa_log_debug("Mapping %s (%s), priority=%u, channel_map=%s, supported=%s, direction=%i",
3863 pa_strnull(m->description),
3865 pa_channel_map_snprint(cm, sizeof(cm), &m->channel_map),
3866 pa_yes_no(m->supported),
3870 static void profile_set_add_auto_pair(
3871 pa_alsa_profile_set *ps,
3872 pa_alsa_mapping *m, /* output */
3873 pa_alsa_mapping *n /* input */) {
3881 if (m && m->direction == PA_ALSA_DIRECTION_INPUT)
3884 if (n && n->direction == PA_ALSA_DIRECTION_OUTPUT)
3888 name = pa_sprintf_malloc("output:%s+input:%s", m->name, n->name);
3890 name = pa_sprintf_malloc("output:%s", m->name);
3892 name = pa_sprintf_malloc("input:%s", n->name);
3894 if (pa_hashmap_get(ps->profiles, name)) {
3899 p = pa_xnew0(pa_alsa_profile, 1);
3900 p->profile_set = ps;
3904 p->output_mappings = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
3905 pa_idxset_put(p->output_mappings, m, NULL);
3906 p->priority += m->priority * 100;
3910 p->input_mappings = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
3911 pa_idxset_put(p->input_mappings, n, NULL);
3912 p->priority += n->priority;
3915 pa_hashmap_put(ps->profiles, p->name, p);
3918 static void profile_set_add_auto(pa_alsa_profile_set *ps) {
3919 pa_alsa_mapping *m, *n;
3920 void *m_state, *n_state;
3924 /* The order is important here:
3925 1) try single inputs and outputs before trying their
3926 combination, because if the half-duplex test failed, we don't have
3928 2) try the output right before the input combinations with
3929 that output, because then the output_pcm is not closed between tests.
3931 PA_HASHMAP_FOREACH(n, ps->mappings, n_state)
3932 profile_set_add_auto_pair(ps, NULL, n);
3934 PA_HASHMAP_FOREACH(m, ps->mappings, m_state) {
3935 profile_set_add_auto_pair(ps, m, NULL);
3937 PA_HASHMAP_FOREACH(n, ps->mappings, n_state)
3938 profile_set_add_auto_pair(ps, m, n);
3943 static int profile_verify(pa_alsa_profile *p) {
3945 static const struct description_map well_known_descriptions[] = {
3946 { "output:analog-mono+input:analog-mono", N_("Analog Mono Duplex") },
3947 { "output:analog-stereo+input:analog-stereo", N_("Analog Stereo Duplex") },
3948 { "output:iec958-stereo+input:iec958-stereo", N_("Digital Stereo Duplex (IEC958)") },
3949 { "off", N_("Off") }
3954 /* Replace the output mapping names by the actual mappings */
3955 if (p->output_mapping_names) {
3958 pa_assert(!p->output_mappings);
3959 p->output_mappings = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
3961 for (name = p->output_mapping_names; *name; name++) {
3964 pa_bool_t duplicate = FALSE;
3966 for (in = name + 1; *in; in++)
3967 if (pa_streq(*name, *in)) {
3975 if (!(m = pa_hashmap_get(p->profile_set->mappings, *name)) || m->direction == PA_ALSA_DIRECTION_INPUT) {
3976 pa_log("Profile '%s' refers to nonexistent mapping '%s'.", p->name, *name);
3980 pa_idxset_put(p->output_mappings, m, NULL);
3986 pa_xstrfreev(p->output_mapping_names);
3987 p->output_mapping_names = NULL;
3990 /* Replace the input mapping names by the actual mappings */
3991 if (p->input_mapping_names) {
3994 pa_assert(!p->input_mappings);
3995 p->input_mappings = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
3997 for (name = p->input_mapping_names; *name; name++) {
4000 pa_bool_t duplicate = FALSE;
4002 for (in = name + 1; *in; in++)
4003 if (pa_streq(*name, *in)) {
4011 if (!(m = pa_hashmap_get(p->profile_set->mappings, *name)) || m->direction == PA_ALSA_DIRECTION_OUTPUT) {
4012 pa_log("Profile '%s' refers to nonexistent mapping '%s'.", p->name, *name);
4016 pa_idxset_put(p->input_mappings, m, NULL);
4022 pa_xstrfreev(p->input_mapping_names);
4023 p->input_mapping_names = NULL;
4026 if (!p->input_mappings && !p->output_mappings) {
4027 pa_log("Profile '%s' lacks mappings.", p->name);
4031 if (!p->description)
4032 p->description = pa_xstrdup(lookup_description(p->name,
4033 well_known_descriptions,
4034 PA_ELEMENTSOF(well_known_descriptions)));
4036 if (!p->description) {
4041 sb = pa_strbuf_new();
4043 if (p->output_mappings)
4044 PA_IDXSET_FOREACH(m, p->output_mappings, idx) {
4045 if (!pa_strbuf_isempty(sb))
4046 pa_strbuf_puts(sb, " + ");
4048 pa_strbuf_printf(sb, _("%s Output"), m->description);
4051 if (p->input_mappings)
4052 PA_IDXSET_FOREACH(m, p->input_mappings, idx) {
4053 if (!pa_strbuf_isempty(sb))
4054 pa_strbuf_puts(sb, " + ");
4056 pa_strbuf_printf(sb, _("%s Input"), m->description);
4059 p->description = pa_strbuf_tostring_free(sb);
4065 void pa_alsa_profile_dump(pa_alsa_profile *p) {
4070 pa_log_debug("Profile %s (%s), priority=%u, supported=%s n_input_mappings=%u, n_output_mappings=%u",
4072 pa_strnull(p->description),
4074 pa_yes_no(p->supported),
4075 p->input_mappings ? pa_idxset_size(p->input_mappings) : 0,
4076 p->output_mappings ? pa_idxset_size(p->output_mappings) : 0);
4078 if (p->input_mappings)
4079 PA_IDXSET_FOREACH(m, p->input_mappings, idx)
4080 pa_log_debug("Input %s", m->name);
4082 if (p->output_mappings)
4083 PA_IDXSET_FOREACH(m, p->output_mappings, idx)
4084 pa_log_debug("Output %s", m->name);
4087 static int decibel_fix_verify(pa_alsa_decibel_fix *db_fix) {
4090 /* Check that the dB mapping has been configured. Since "db-values" is
4091 * currently the only option in the DecibelFix section, and decibel fix
4092 * objects don't get created if a DecibelFix section is empty, this is
4093 * actually a redundant check. Having this may prevent future bugs,
4095 if (!db_fix->db_values) {
4096 pa_log("Decibel fix for element %s lacks the dB values.", db_fix->name);
4103 void pa_alsa_decibel_fix_dump(pa_alsa_decibel_fix *db_fix) {
4104 char *db_values = NULL;
4108 if (db_fix->db_values) {
4110 unsigned long i, nsteps;
4112 pa_assert(db_fix->min_step <= db_fix->max_step);
4113 nsteps = db_fix->max_step - db_fix->min_step + 1;
4115 buf = pa_strbuf_new();
4116 for (i = 0; i < nsteps; ++i)
4117 pa_strbuf_printf(buf, "[%li]:%0.2f ", i + db_fix->min_step, db_fix->db_values[i] / 100.0);
4119 db_values = pa_strbuf_tostring_free(buf);
4122 pa_log_debug("Decibel fix %s, min_step=%li, max_step=%li, db_values=%s",
4123 db_fix->name, db_fix->min_step, db_fix->max_step, pa_strnull(db_values));
4125 pa_xfree(db_values);
4128 pa_alsa_profile_set* pa_alsa_profile_set_new(const char *fname, const pa_channel_map *bonus) {
4129 pa_alsa_profile_set *ps;
4132 pa_alsa_decibel_fix *db_fix;
4137 static pa_config_item items[] = {
4139 { "auto-profiles", pa_config_parse_bool, NULL, "General" },
4142 { "device-strings", mapping_parse_device_strings, NULL, NULL },
4143 { "channel-map", mapping_parse_channel_map, NULL, NULL },
4144 { "paths-input", mapping_parse_paths, NULL, NULL },
4145 { "paths-output", mapping_parse_paths, NULL, NULL },
4146 { "element-input", mapping_parse_element, NULL, NULL },
4147 { "element-output", mapping_parse_element, NULL, NULL },
4148 { "direction", mapping_parse_direction, NULL, NULL },
4150 /* Shared by [Mapping ...] and [Profile ...] */
4151 { "description", mapping_parse_description, NULL, NULL },
4152 { "priority", mapping_parse_priority, NULL, NULL },
4155 { "input-mappings", profile_parse_mappings, NULL, NULL },
4156 { "output-mappings", profile_parse_mappings, NULL, NULL },
4157 { "skip-probe", profile_parse_skip_probe, NULL, NULL },
4159 /* [DecibelFix ...] */
4160 { "db-values", decibel_fix_parse_db_values, NULL, NULL },
4161 { NULL, NULL, NULL, NULL }
4164 ps = pa_xnew0(pa_alsa_profile_set, 1);
4165 ps->mappings = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
4166 ps->profiles = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
4167 ps->decibel_fixes = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
4168 ps->input_paths = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
4169 ps->output_paths = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
4171 items[0].data = &ps->auto_profiles;
4174 fname = "default.conf";
4176 fn = pa_maybe_prefix_path(fname,
4177 pa_run_from_build_tree() ? PA_BUILDDIR "/modules/alsa/mixer/profile-sets/" :
4178 PA_ALSA_PROFILE_SETS_DIR);
4180 r = pa_config_parse(fn, NULL, items, NULL, ps);
4186 PA_HASHMAP_FOREACH(m, ps->mappings, state)
4187 if (mapping_verify(m, bonus) < 0)
4190 if (ps->auto_profiles)
4191 profile_set_add_auto(ps);
4193 PA_HASHMAP_FOREACH(p, ps->profiles, state)
4194 if (profile_verify(p) < 0)
4197 PA_HASHMAP_FOREACH(db_fix, ps->decibel_fixes, state)
4198 if (decibel_fix_verify(db_fix) < 0)
4204 pa_alsa_profile_set_free(ps);
4208 static void profile_finalize_probing(pa_alsa_profile *to_be_finalized, pa_alsa_profile *next) {
4212 if (!to_be_finalized)
4215 if (to_be_finalized->output_mappings)
4216 PA_IDXSET_FOREACH(m, to_be_finalized->output_mappings, idx) {
4221 if (to_be_finalized->supported)
4224 /* If this mapping is also in the next profile, we won't close the
4225 * pcm handle here, because it would get immediately reopened
4227 if (next && next->output_mappings && pa_idxset_get_by_data(next->output_mappings, m, NULL))
4230 snd_pcm_close(m->output_pcm);
4231 m->output_pcm = NULL;
4234 if (to_be_finalized->input_mappings)
4235 PA_IDXSET_FOREACH(m, to_be_finalized->input_mappings, idx) {
4240 if (to_be_finalized->supported)
4243 /* If this mapping is also in the next profile, we won't close the
4244 * pcm handle here, because it would get immediately reopened
4246 if (next && next->input_mappings && pa_idxset_get_by_data(next->input_mappings, m, NULL))
4249 snd_pcm_close(m->input_pcm);
4250 m->input_pcm = NULL;
4254 static snd_pcm_t* mapping_open_pcm(pa_alsa_mapping *m,
4255 const pa_sample_spec *ss,
4258 unsigned default_n_fragments,
4259 unsigned default_fragment_size_msec) {
4261 pa_sample_spec try_ss = *ss;
4262 pa_channel_map try_map = m->channel_map;
4263 snd_pcm_uframes_t try_period_size, try_buffer_size;
4265 try_ss.channels = try_map.channels;
4268 pa_usec_to_bytes(default_fragment_size_msec * PA_USEC_PER_MSEC, &try_ss) /
4269 pa_frame_size(&try_ss);
4270 try_buffer_size = default_n_fragments * try_period_size;
4272 return pa_alsa_open_by_template(
4273 m->device_strings, dev_id, NULL, &try_ss,
4274 &try_map, mode, &try_period_size,
4275 &try_buffer_size, 0, NULL, NULL, TRUE);
4278 static void paths_drop_unsupported(pa_hashmap* h) {
4285 p = pa_hashmap_iterate(h, &state, &key);
4287 if (p->supported <= 0) {
4288 pa_hashmap_remove(h, key);
4289 pa_alsa_path_free(p);
4291 p = pa_hashmap_iterate(h, &state, &key);
4295 void pa_alsa_profile_set_probe(
4296 pa_alsa_profile_set *ps,
4298 const pa_sample_spec *ss,
4299 unsigned default_n_fragments,
4300 unsigned default_fragment_size_msec) {
4303 pa_alsa_profile *p, *last = NULL;
4305 pa_hashmap *broken_inputs, *broken_outputs;
4314 broken_inputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
4315 broken_outputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
4317 PA_HASHMAP_FOREACH(p, ps->profiles, state) {
4320 /* Skip if this is already marked that it is supported (i.e. from the config file) */
4321 if (!p->supported) {
4323 profile_finalize_probing(last, p);
4324 p->supported = TRUE;
4326 if (p->output_mappings) {
4327 PA_IDXSET_FOREACH(m, p->output_mappings, idx) {
4328 if (pa_hashmap_get(broken_outputs, m) == m) {
4329 pa_log_debug("Skipping profile %s - will not be able to open output:%s", p->name, m->name);
4330 p->supported = FALSE;
4336 if (p->input_mappings && p->supported) {
4337 PA_IDXSET_FOREACH(m, p->input_mappings, idx) {
4338 if (pa_hashmap_get(broken_inputs, m) == m) {
4339 pa_log_debug("Skipping profile %s - will not be able to open input:%s", p->name, m->name);
4340 p->supported = FALSE;
4347 pa_log_debug("Looking at profile %s", p->name);
4349 /* Check if we can open all new ones */
4350 if (p->output_mappings && p->supported)
4351 PA_IDXSET_FOREACH(m, p->output_mappings, idx) {
4356 pa_log_debug("Checking for playback on %s (%s)", m->description, m->name);
4357 if (!(m->output_pcm = mapping_open_pcm(m, ss, dev_id,
4358 SND_PCM_STREAM_PLAYBACK,
4359 default_n_fragments,
4360 default_fragment_size_msec))) {
4361 p->supported = FALSE;
4362 if (pa_idxset_size(p->output_mappings) == 1 &&
4363 ((!p->input_mappings) || pa_idxset_size(p->input_mappings) == 0)) {
4364 pa_log_debug("Caching failure to open output:%s", m->name);
4365 pa_hashmap_put(broken_outputs, m, m);
4371 if (p->input_mappings && p->supported)
4372 PA_IDXSET_FOREACH(m, p->input_mappings, idx) {
4377 pa_log_debug("Checking for recording on %s (%s)", m->description, m->name);
4378 if (!(m->input_pcm = mapping_open_pcm(m, ss, dev_id,
4379 SND_PCM_STREAM_CAPTURE,
4380 default_n_fragments,
4381 default_fragment_size_msec))) {
4382 p->supported = FALSE;
4383 if (pa_idxset_size(p->input_mappings) == 1 &&
4384 ((!p->output_mappings) || pa_idxset_size(p->output_mappings) == 0)) {
4385 pa_log_debug("Caching failure to open input:%s", m->name);
4386 pa_hashmap_put(broken_inputs, m, m);
4398 pa_log_debug("Profile %s supported.", p->name);
4400 if (p->output_mappings)
4401 PA_IDXSET_FOREACH(m, p->output_mappings, idx)
4403 mapping_paths_probe(m, p, PA_ALSA_DIRECTION_OUTPUT);
4405 if (p->input_mappings)
4406 PA_IDXSET_FOREACH(m, p->input_mappings, idx)
4408 mapping_paths_probe(m, p, PA_ALSA_DIRECTION_INPUT);
4412 profile_finalize_probing(last, NULL);
4414 pa_alsa_profile_set_drop_unsupported(ps);
4416 paths_drop_unsupported(ps->input_paths);
4417 paths_drop_unsupported(ps->output_paths);
4418 pa_hashmap_free(broken_inputs, NULL, NULL);
4419 pa_hashmap_free(broken_outputs, NULL, NULL);
4424 void pa_alsa_profile_set_dump(pa_alsa_profile_set *ps) {
4427 pa_alsa_decibel_fix *db_fix;
4432 pa_log_debug("Profile set %p, auto_profiles=%s, probed=%s, n_mappings=%u, n_profiles=%u, n_decibel_fixes=%u",
4435 pa_yes_no(ps->auto_profiles),
4436 pa_yes_no(ps->probed),
4437 pa_hashmap_size(ps->mappings),
4438 pa_hashmap_size(ps->profiles),
4439 pa_hashmap_size(ps->decibel_fixes));
4441 PA_HASHMAP_FOREACH(m, ps->mappings, state)
4442 pa_alsa_mapping_dump(m);
4444 PA_HASHMAP_FOREACH(p, ps->profiles, state)
4445 pa_alsa_profile_dump(p);
4447 PA_HASHMAP_FOREACH(db_fix, ps->decibel_fixes, state)
4448 pa_alsa_decibel_fix_dump(db_fix);
4451 void pa_alsa_profile_set_drop_unsupported(pa_alsa_profile_set *ps) {
4456 PA_HASHMAP_FOREACH(p, ps->profiles, state) {
4457 if (!p->supported) {
4458 pa_hashmap_remove(ps->profiles, p->name);
4463 PA_HASHMAP_FOREACH(m, ps->mappings, state) {
4464 if (m->supported <= 0) {
4465 pa_hashmap_remove(ps->mappings, m->name);
4471 static pa_device_port* device_port_alsa_init(pa_hashmap *ports,
4473 const char* description,
4475 pa_alsa_setting *setting,
4476 pa_card_profile *cp,
4484 p = pa_hashmap_get(ports, name);
4487 pa_alsa_port_data *data;
4489 p = pa_device_port_new(core, name, description, sizeof(pa_alsa_port_data));
4491 pa_hashmap_put(ports, p->name, p);
4492 pa_proplist_update(p->proplist, PA_UPDATE_REPLACE, path->proplist);
4494 data = PA_DEVICE_PORT_DATA(p);
4496 data->setting = setting;
4500 p->is_input |= path->direction == PA_ALSA_DIRECTION_ANY || path->direction == PA_ALSA_DIRECTION_INPUT;
4501 p->is_output |= path->direction == PA_ALSA_DIRECTION_ANY || path->direction == PA_ALSA_DIRECTION_OUTPUT;
4504 pa_hashmap_put(p->profiles, cp->name, cp);
4507 pa_hashmap_put(extra, p->name, p);
4508 pa_device_port_ref(p);
4514 void pa_alsa_path_set_add_ports(
4515 pa_alsa_path_set *ps,
4516 pa_card_profile *cp,
4529 PA_HASHMAP_FOREACH(path, ps->paths, state) {
4530 if (!path->settings || !path->settings->next) {
4531 /* If there is no or just one setting we only need a
4533 pa_device_port *port = device_port_alsa_init(ports, path->name,
4534 path->description, path, path->settings, cp, extra, core);
4535 port->priority = path->priority * 100;
4539 PA_LLIST_FOREACH(s, path->settings) {
4540 pa_device_port *port;
4543 n = pa_sprintf_malloc("%s;%s", path->name, s->name);
4545 if (s->description[0])
4546 d = pa_sprintf_malloc("%s / %s", path->description, s->description);
4548 d = pa_xstrdup(path->description);
4550 port = device_port_alsa_init(ports, n, d, path, s, cp, extra, core);
4551 port->priority = path->priority * 100 + s->priority;
4560 void pa_alsa_add_ports(void *sink_or_source_new_data, pa_alsa_path_set *ps, pa_card *card) {
4563 pa_assert(sink_or_source_new_data);
4566 if (ps->direction == PA_ALSA_DIRECTION_OUTPUT)
4567 ports = ((pa_sink_new_data *) sink_or_source_new_data)->ports;
4569 ports = ((pa_source_new_data *) sink_or_source_new_data)->ports;
4571 if (ps->paths && pa_hashmap_size(ps->paths) > 0) {
4573 pa_alsa_path_set_add_ports(ps, NULL, card->ports, ports, card->core);
4576 pa_log_debug("Added %u ports", pa_hashmap_size(ports));