#endif
#include <sys/types.h>
-#include <limits.h>
#include <asoundlib.h>
+#include <math.h>
#ifdef HAVE_VALGRIND_MEMCHECK_H
#include <valgrind/memcheck.h>
#endif
+#include <pulse/mainloop-api.h>
#include <pulse/sample.h>
-#include <pulse/xmalloc.h>
#include <pulse/timeval.h>
#include <pulse/util.h>
-#include <pulse/i18n.h>
+#include <pulse/volume.h>
+#include <pulse/xmalloc.h>
#include <pulse/utf8.h>
+#include <pulsecore/i18n.h>
#include <pulsecore/log.h>
#include <pulsecore/macro.h>
#include <pulsecore/core-util.h>
-#include <pulsecore/atomic.h>
-#include <pulsecore/core-error.h>
-#include <pulsecore/once.h>
-#include <pulsecore/thread.h>
#include <pulsecore/conf-parser.h>
#include <pulsecore/strbuf.h>
return r;
}
-static int element_set_volume(pa_alsa_element *e, snd_mixer_t *m, const pa_channel_map *cm, pa_cvolume *v, pa_bool_t sync_volume, pa_bool_t write_to_hw) {
+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) {
snd_mixer_selem_id_t *sid;
pa_cvolume rv;
} else {
if (write_to_hw) {
- if (sync_volume) {
+ if (deferred_volume) {
if ((r = element_get_nearest_alsa_dB(me, c, PA_ALSA_DIRECTION_OUTPUT, &value)) >= 0)
r = snd_mixer_selem_set_playback_dB(me, c, value, 0);
} else {
} else {
if (write_to_hw) {
- if (sync_volume) {
+ if (deferred_volume) {
if ((r = element_get_nearest_alsa_dB(me, c, PA_ALSA_DIRECTION_INPUT, &value)) >= 0)
r = snd_mixer_selem_set_capture_dB(me, c, value, 0);
} else {
return 0;
}
-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 sync_volume, pa_bool_t write_to_hw) {
+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) {
pa_alsa_element *e;
pa_cvolume rv;
pa_assert(!p->has_dB || e->has_dB);
ev = rv;
- if (element_set_volume(e, m, cm, &ev, sync_volume, write_to_hw) < 0)
+ if (element_set_volume(e, m, cm, &ev, deferred_volume, write_to_hw) < 0)
return -1;
if (!p->has_dB) {
if (e->db_fix) {
long dB = 0;
- volume = decibel_fix_get_step(e->db_fix, &dB, +1);
+ volume = decibel_fix_get_step(e->db_fix, &dB, (e->direction == PA_ALSA_DIRECTION_OUTPUT ? +1 : -1));
volume_set = TRUE;
}
break;
if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
r = snd_mixer_selem_set_playback_dB_all(me, 0, +1);
else
- r = snd_mixer_selem_set_capture_dB_all(me, 0, +1);
+ r = snd_mixer_selem_set_capture_dB_all(me, 0, -1);
}
if (r < 0)
pa_alsa_path_dump(p);
}
-static void path_set_unify(pa_alsa_path_set *ps) {
- pa_alsa_path *p;
- pa_bool_t has_dB = TRUE, has_volume = TRUE, has_mute = TRUE;
- pa_assert(ps);
- /* We have issues dealing with paths that vary too wildly. That
- * means for now we have to have all paths support volume/mute/dB
- * or none. */
+static pa_bool_t options_have_option(pa_alsa_option *options, const char *alsa_name) {
+ pa_alsa_option *o;
- PA_LLIST_FOREACH(p, ps->paths) {
- pa_assert(p->probed);
+ pa_assert(options);
+ pa_assert(alsa_name);
+
+ PA_LLIST_FOREACH(o, options) {
+ if (pa_streq(o->alsa_name, alsa_name))
+ return TRUE;
+ }
+ return FALSE;
+}
- if (!p->has_volume)
- has_volume = FALSE;
- else if (!p->has_dB)
- has_dB = FALSE;
+static pa_bool_t enumeration_is_subset(pa_alsa_option *a_options, pa_alsa_option *b_options) {
+ pa_alsa_option *oa, *ob;
- if (!p->has_mute)
- has_mute = FALSE;
+ if (!a_options) return TRUE;
+ if (!b_options) return FALSE;
+
+ /* If there is an option A offers that B does not, then A is not a subset of B. */
+ PA_LLIST_FOREACH(oa, a_options) {
+ pa_bool_t found = FALSE;
+ PA_LLIST_FOREACH(ob, b_options) {
+ if (pa_streq(oa->alsa_name, ob->alsa_name)) {
+ found = TRUE;
+ break;
+ }
+ }
+ if (!found)
+ return FALSE;
}
+ return TRUE;
+}
- if (!has_volume || !has_dB || !has_mute) {
+/**
+ * Compares two elements to see if a is a subset of b
+ */
+static pa_bool_t element_is_subset(pa_alsa_element *a, pa_alsa_element *b, snd_mixer_t *m) {
+ pa_assert(a);
+ pa_assert(b);
+ pa_assert(m);
- if (!has_volume)
- pa_log_debug("Some paths of the device lack hardware volume control, disabling hardware control altogether.");
- else if (!has_dB)
- pa_log_debug("Some paths of the device lack dB information, disabling dB logic altogether.");
+ /* General rules:
+ * Every state is a subset of itself (with caveats for volume_limits and options)
+ * IGNORE is a subset of every other state */
- if (!has_mute)
- pa_log_debug("Some paths of the device lack hardware mute control, disabling hardware control altogether.");
+ /* Check the volume_use */
+ if (a->volume_use != PA_ALSA_VOLUME_IGNORE) {
- PA_LLIST_FOREACH(p, ps->paths) {
- if (!has_volume)
- p->has_volume = FALSE;
- else if (!has_dB)
- p->has_dB = FALSE;
+ /* "Constant" is subset of "Constant" only when their constant values are equal */
+ if (a->volume_use == PA_ALSA_VOLUME_CONSTANT && b->volume_use == PA_ALSA_VOLUME_CONSTANT && a->constant_volume != b->constant_volume)
+ return FALSE;
+
+ /* Different volume uses when b is not "Merge" means we are definitely not a subset */
+ if (a->volume_use != b->volume_use && b->volume_use != PA_ALSA_VOLUME_MERGE)
+ return FALSE;
+
+ /* "Constant" is a subset of "Merge", if there is not a "volume-limit" in "Merge" below the actual constant.
+ * "Zero" and "Off" are just special cases of "Constant" when comparing to "Merge"
+ * "Merge" with a "volume-limit" is a subset of "Merge" without a "volume-limit" or with a higher "volume-limit" */
+ if (b->volume_use == PA_ALSA_VOLUME_MERGE && b->volume_limit >= 0) {
+ long a_limit;
+
+ if (a->volume_use == PA_ALSA_VOLUME_CONSTANT)
+ a_limit = a->constant_volume;
+ else if (a->volume_use == PA_ALSA_VOLUME_ZERO) {
+ long dB = 0;
+
+ if (a->db_fix) {
+ int rounding = (a->direction == PA_ALSA_DIRECTION_OUTPUT ? +1 : -1);
+ a_limit = decibel_fix_get_step(a->db_fix, &dB, rounding);
+ } else {
+ snd_mixer_selem_id_t *sid;
+ snd_mixer_elem_t *me;
- if (!has_mute)
- p->has_mute = FALSE;
+ SELEM_INIT(sid, a->alsa_name);
+ if (!(me = snd_mixer_find_selem(m, sid))) {
+ pa_log_warn("Element %s seems to have disappeared.", a->alsa_name);
+ return FALSE;
+ }
+
+ if (a->direction == PA_ALSA_DIRECTION_OUTPUT) {
+ if (snd_mixer_selem_ask_playback_dB_vol(me, dB, +1, &a_limit) < 0)
+ return FALSE;
+ } else {
+ if (snd_mixer_selem_ask_capture_dB_vol(me, dB, -1, &a_limit) < 0)
+ return FALSE;
+ }
+ }
+ } else if (a->volume_use == PA_ALSA_VOLUME_OFF)
+ a_limit = a->min_volume;
+ else if (a->volume_use == PA_ALSA_VOLUME_MERGE)
+ a_limit = a->volume_limit;
+ else
+ /* This should never be reached */
+ pa_assert(FALSE);
+
+ if (a_limit > b->volume_limit)
+ return FALSE;
+ }
+ }
+
+ if (a->switch_use != PA_ALSA_SWITCH_IGNORE) {
+ /* "On" is a subset of "Mute".
+ * "Off" is a subset of "Mute".
+ * "On" is a subset of "Select", if there is an "Option:On" in B.
+ * "Off" is a subset of "Select", if there is an "Option:Off" in B.
+ * "Select" is a subset of "Select", if they have the same options (is this always true?). */
+
+ if (a->switch_use != b->switch_use) {
+
+ if (a->switch_use == PA_ALSA_SWITCH_SELECT || a->switch_use == PA_ALSA_SWITCH_MUTE
+ || b->switch_use == PA_ALSA_SWITCH_OFF || b->switch_use == PA_ALSA_SWITCH_ON)
+ return FALSE;
+
+ if (b->switch_use == PA_ALSA_SWITCH_SELECT) {
+ if (a->switch_use == PA_ALSA_SWITCH_ON) {
+ if (!options_have_option(b->options, "on"))
+ return FALSE;
+ } else if (a->switch_use == PA_ALSA_SWITCH_OFF) {
+ if (!options_have_option(b->options, "off"))
+ return FALSE;
+ }
+ }
+ } else if (a->switch_use == PA_ALSA_SWITCH_SELECT) {
+ if (!enumeration_is_subset(a->options, b->options))
+ return FALSE;
+ }
+ }
+
+ if (a->enumeration_use != PA_ALSA_ENUMERATION_IGNORE) {
+ if (b->enumeration_use == PA_ALSA_ENUMERATION_IGNORE)
+ return FALSE;
+ if (!enumeration_is_subset(a->options, b->options))
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static void path_set_condense(pa_alsa_path_set *ps, snd_mixer_t *m) {
+ pa_alsa_path *p, *np;
+
+ pa_assert(ps);
+ pa_assert(m);
+
+ /* If we only have one path, then don't bother */
+ if (!ps->paths || !ps->paths->next)
+ return;
+
+ for (p = ps->paths; p; p = np) {
+ pa_alsa_path *p2;
+ np = p->next;
+
+ PA_LLIST_FOREACH(p2, ps->paths) {
+ pa_alsa_element *ea, *eb;
+ pa_bool_t is_subset = TRUE;
+
+ if (p == p2)
+ continue;
+
+ /* Compare the elements of each set... */
+ pa_assert_se(ea = p->elements);
+ pa_assert_se(eb = p2->elements);
+
+ while (is_subset) {
+ if (pa_streq(ea->alsa_name, eb->alsa_name)) {
+ if (element_is_subset(ea, eb, m)) {
+ ea = ea->next;
+ eb = eb->next;
+ if ((ea && !eb) || (!ea && eb))
+ is_subset = FALSE;
+ else if (!ea && !eb)
+ break;
+ } else
+ is_subset = FALSE;
+
+ } else
+ is_subset = FALSE;
+ }
+
+ if (is_subset) {
+ pa_log_debug("Removing path '%s' as it is a subset of '%s'.", p->name, p2->name);
+ PA_LLIST_REMOVE(pa_alsa_path, ps->paths, p);
+ pa_alsa_path_free(p);
+ break;
+ }
}
}
}
}
}
- path_set_unify(ps);
+ pa_log_debug("Found mixer paths (before tidying):");
+ pa_alsa_path_set_dump(ps);
+
+ path_set_condense(ps, m);
path_set_make_paths_unique(ps);
ps->probed = TRUE;
+
+ pa_log_debug("Available mixer paths (after tidying):");
+ pa_alsa_path_set_dump(ps);
}
static void mapping_free(pa_alsa_mapping *m) {
continue;
if (!(m = pa_hashmap_get(p->profile_set->mappings, *name)) || m->direction == PA_ALSA_DIRECTION_INPUT) {
- pa_log("Profile '%s' refers to unexistant mapping '%s'.", p->name, *name);
+ pa_log("Profile '%s' refers to nonexistent mapping '%s'.", p->name, *name);
return -1;
}
continue;
if (!(m = pa_hashmap_get(p->profile_set->mappings, *name)) || m->direction == PA_ALSA_DIRECTION_OUTPUT) {
- pa_log("Profile '%s' refers to unexistant mapping '%s'.", p->name, *name);
+ pa_log("Profile '%s' refers to nonexistent mapping '%s'.", p->name, *name);
return -1;
}