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pulseaudio/src/modules/alsa/alsa-mixer.c
Jyri Sarha 1bea955829 alsa: Take syncronized HW volume infra into use for alsa-sink 
Signed-off-by: Jyri Sarha <jyri.sarha@nokia.com>
Reviewed-by: Tanu Kaskinen <tanu.kaskinen@digia.com>
Reviewd-by: Colin Guthrie <cguthrie@mandriva.org>
2010-10-16 11:53:39 +01:00

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/***
This file is part of PulseAudio.
Copyright 2004-2009 Lennart Poettering
Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <sys/types.h>
#include <limits.h>
#include <asoundlib.h>
#ifdef HAVE_VALGRIND_MEMCHECK_H
#include <valgrind/memcheck.h>
#endif
#include <pulse/sample.h>
#include <pulse/xmalloc.h>
#include <pulse/timeval.h>
#include <pulse/util.h>
#include <pulse/i18n.h>
#include <pulse/utf8.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>
#include "alsa-mixer.h"
#include "alsa-util.h"
struct description_map {
const char *name;
const char *description;
};
static const char *lookup_description(const char *name, const struct description_map dm[], unsigned n) {
unsigned i;
for (i = 0; i < n; i++)
if (pa_streq(dm[i].name, name))
return dm[i].description;
return NULL;
}
struct pa_alsa_fdlist {
unsigned num_fds;
struct pollfd *fds;
/* This is a temporary buffer used to avoid lots of mallocs */
struct pollfd *work_fds;
snd_mixer_t *mixer;
pa_mainloop_api *m;
pa_defer_event *defer;
pa_io_event **ios;
pa_bool_t polled;
void (*cb)(void *userdata);
void *userdata;
};
static void io_cb(pa_mainloop_api*a, pa_io_event* e, int fd, pa_io_event_flags_t events, void *userdata) {
struct pa_alsa_fdlist *fdl = userdata;
int err;
unsigned i;
unsigned short revents;
pa_assert(a);
pa_assert(fdl);
pa_assert(fdl->mixer);
pa_assert(fdl->fds);
pa_assert(fdl->work_fds);
if (fdl->polled)
return;
fdl->polled = TRUE;
memcpy(fdl->work_fds, fdl->fds, sizeof(struct pollfd) * fdl->num_fds);
for (i = 0; i < fdl->num_fds; i++) {
if (e == fdl->ios[i]) {
if (events & PA_IO_EVENT_INPUT)
fdl->work_fds[i].revents |= POLLIN;
if (events & PA_IO_EVENT_OUTPUT)
fdl->work_fds[i].revents |= POLLOUT;
if (events & PA_IO_EVENT_ERROR)
fdl->work_fds[i].revents |= POLLERR;
if (events & PA_IO_EVENT_HANGUP)
fdl->work_fds[i].revents |= POLLHUP;
break;
}
}
pa_assert(i != fdl->num_fds);
if ((err = snd_mixer_poll_descriptors_revents(fdl->mixer, fdl->work_fds, fdl->num_fds, &revents)) < 0) {
pa_log_error("Unable to get poll revent: %s", pa_alsa_strerror(err));
return;
}
a->defer_enable(fdl->defer, 1);
if (revents)
snd_mixer_handle_events(fdl->mixer);
}
static void defer_cb(pa_mainloop_api*a, pa_defer_event* e, void *userdata) {
struct pa_alsa_fdlist *fdl = userdata;
unsigned num_fds, i;
int err, n;
struct pollfd *temp;
pa_assert(a);
pa_assert(fdl);
pa_assert(fdl->mixer);
a->defer_enable(fdl->defer, 0);
if ((n = snd_mixer_poll_descriptors_count(fdl->mixer)) < 0) {
pa_log("snd_mixer_poll_descriptors_count() failed: %s", pa_alsa_strerror(n));
return;
}
num_fds = (unsigned) n;
if (num_fds != fdl->num_fds) {
if (fdl->fds)
pa_xfree(fdl->fds);
if (fdl->work_fds)
pa_xfree(fdl->work_fds);
fdl->fds = pa_xnew0(struct pollfd, num_fds);
fdl->work_fds = pa_xnew(struct pollfd, num_fds);
}
memset(fdl->work_fds, 0, sizeof(struct pollfd) * num_fds);
if ((err = snd_mixer_poll_descriptors(fdl->mixer, fdl->work_fds, num_fds)) < 0) {
pa_log_error("Unable to get poll descriptors: %s", pa_alsa_strerror(err));
return;
}
fdl->polled = FALSE;
if (memcmp(fdl->fds, fdl->work_fds, sizeof(struct pollfd) * num_fds) == 0)
return;
if (fdl->ios) {
for (i = 0; i < fdl->num_fds; i++)
a->io_free(fdl->ios[i]);
if (num_fds != fdl->num_fds) {
pa_xfree(fdl->ios);
fdl->ios = NULL;
}
}
if (!fdl->ios)
fdl->ios = pa_xnew(pa_io_event*, num_fds);
/* Swap pointers */
temp = fdl->work_fds;
fdl->work_fds = fdl->fds;
fdl->fds = temp;
fdl->num_fds = num_fds;
for (i = 0;i < num_fds;i++)
fdl->ios[i] = a->io_new(a, fdl->fds[i].fd,
((fdl->fds[i].events & POLLIN) ? PA_IO_EVENT_INPUT : 0) |
((fdl->fds[i].events & POLLOUT) ? PA_IO_EVENT_OUTPUT : 0),
io_cb, fdl);
}
struct pa_alsa_fdlist *pa_alsa_fdlist_new(void) {
struct pa_alsa_fdlist *fdl;
fdl = pa_xnew0(struct pa_alsa_fdlist, 1);
return fdl;
}
void pa_alsa_fdlist_free(struct pa_alsa_fdlist *fdl) {
pa_assert(fdl);
if (fdl->defer) {
pa_assert(fdl->m);
fdl->m->defer_free(fdl->defer);
}
if (fdl->ios) {
unsigned i;
pa_assert(fdl->m);
for (i = 0; i < fdl->num_fds; i++)
fdl->m->io_free(fdl->ios[i]);
pa_xfree(fdl->ios);
}
if (fdl->fds)
pa_xfree(fdl->fds);
if (fdl->work_fds)
pa_xfree(fdl->work_fds);
pa_xfree(fdl);
}
int pa_alsa_fdlist_set_mixer(struct pa_alsa_fdlist *fdl, snd_mixer_t *mixer_handle, pa_mainloop_api* m) {
pa_assert(fdl);
pa_assert(mixer_handle);
pa_assert(m);
pa_assert(!fdl->m);
fdl->mixer = mixer_handle;
fdl->m = m;
fdl->defer = m->defer_new(m, defer_cb, fdl);
return 0;
}
struct pa_alsa_mixer_pdata {
pa_rtpoll *rtpoll;
pa_rtpoll_item *poll_item;
snd_mixer_t *mixer;
};
struct pa_alsa_mixer_pdata *pa_alsa_mixer_pdata_new(void) {
struct pa_alsa_mixer_pdata *pd;
pd = pa_xnew0(struct pa_alsa_mixer_pdata, 1);
return pd;
}
void pa_alsa_mixer_pdata_free(struct pa_alsa_mixer_pdata *pd) {
pa_assert(pd);
if (pd->poll_item) {
pa_rtpoll_item_free(pd->poll_item);
}
pa_xfree(pd);
}
static int rtpoll_work_cb(pa_rtpoll_item *i) {
struct pa_alsa_mixer_pdata *pd;
struct pollfd *p;
unsigned n_fds;
unsigned short revents = 0;
int err;
pd = pa_rtpoll_item_get_userdata(i);
pa_assert_fp(pd);
pa_assert_fp(i == pd->poll_item);
p = pa_rtpoll_item_get_pollfd(i, &n_fds);
if ((err = snd_mixer_poll_descriptors_revents(pd->mixer, p, n_fds, &revents)) < 0) {
pa_log_error("Unable to get poll revent: %s", pa_alsa_strerror(err));
pa_rtpoll_item_free(i);
return -1;
}
if (revents) {
snd_mixer_handle_events(pd->mixer);
pa_rtpoll_item_free(i);
pa_alsa_set_mixer_rtpoll(pd, pd->mixer, pd->rtpoll);
}
return 0;
}
int pa_alsa_set_mixer_rtpoll(struct pa_alsa_mixer_pdata *pd, snd_mixer_t *mixer, pa_rtpoll *rtp) {
pa_rtpoll_item *i;
struct pollfd *p;
int err, n;
pa_assert(pd);
pa_assert(mixer);
pa_assert(rtp);
if ((n = snd_mixer_poll_descriptors_count(mixer)) < 0) {
pa_log("snd_mixer_poll_descriptors_count() failed: %s", pa_alsa_strerror(n));
return -1;
}
i = pa_rtpoll_item_new(rtp, PA_RTPOLL_LATE, (unsigned) n);
p = pa_rtpoll_item_get_pollfd(i, NULL);
memset(p, 0, sizeof(struct pollfd) * n);
if ((err = snd_mixer_poll_descriptors(mixer, p, (unsigned) n)) < 0) {
pa_log_error("Unable to get poll descriptors: %s", pa_alsa_strerror(err));
pa_rtpoll_item_free(i);
return -1;
}
pd->rtpoll = rtp;
pd->poll_item = i;
pd->mixer = mixer;
pa_rtpoll_item_set_userdata(i, pd);
pa_rtpoll_item_set_work_callback(i, rtpoll_work_cb);
return 0;
}
static int prepare_mixer(snd_mixer_t *mixer, const char *dev) {
int err;
pa_assert(mixer);
pa_assert(dev);
if ((err = snd_mixer_attach(mixer, dev)) < 0) {
pa_log_info("Unable to attach to mixer %s: %s", dev, pa_alsa_strerror(err));
return -1;
}
if ((err = snd_mixer_selem_register(mixer, NULL, NULL)) < 0) {
pa_log_warn("Unable to register mixer: %s", pa_alsa_strerror(err));
return -1;
}
if ((err = snd_mixer_load(mixer)) < 0) {
pa_log_warn("Unable to load mixer: %s", pa_alsa_strerror(err));
return -1;
}
pa_log_info("Successfully attached to mixer '%s'", dev);
return 0;
}
snd_mixer_t *pa_alsa_open_mixer_for_pcm(snd_pcm_t *pcm, char **ctl_device) {
int err;
snd_mixer_t *m;
const char *dev;
snd_pcm_info_t* info;
snd_pcm_info_alloca(&info);
pa_assert(pcm);
if ((err = snd_mixer_open(&m, 0)) < 0) {
pa_log("Error opening mixer: %s", pa_alsa_strerror(err));
return NULL;
}
/* First, try by name */
if ((dev = snd_pcm_name(pcm)))
if (prepare_mixer(m, dev) >= 0) {
if (ctl_device)
*ctl_device = pa_xstrdup(dev);
return m;
}
/* Then, try by card index */
if (snd_pcm_info(pcm, info) >= 0) {
char *md;
int card_idx;
if ((card_idx = snd_pcm_info_get_card(info)) >= 0) {
md = pa_sprintf_malloc("hw:%i", card_idx);
if (!dev || !pa_streq(dev, md))
if (prepare_mixer(m, md) >= 0) {
if (ctl_device)
*ctl_device = md;
else
pa_xfree(md);
return m;
}
pa_xfree(md);
}
}
snd_mixer_close(m);
return NULL;
}
static const snd_mixer_selem_channel_id_t alsa_channel_ids[PA_CHANNEL_POSITION_MAX] = {
[PA_CHANNEL_POSITION_MONO] = SND_MIXER_SCHN_MONO, /* The ALSA name is just an alias! */
[PA_CHANNEL_POSITION_FRONT_CENTER] = SND_MIXER_SCHN_FRONT_CENTER,
[PA_CHANNEL_POSITION_FRONT_LEFT] = SND_MIXER_SCHN_FRONT_LEFT,
[PA_CHANNEL_POSITION_FRONT_RIGHT] = SND_MIXER_SCHN_FRONT_RIGHT,
[PA_CHANNEL_POSITION_REAR_CENTER] = SND_MIXER_SCHN_REAR_CENTER,
[PA_CHANNEL_POSITION_REAR_LEFT] = SND_MIXER_SCHN_REAR_LEFT,
[PA_CHANNEL_POSITION_REAR_RIGHT] = SND_MIXER_SCHN_REAR_RIGHT,
[PA_CHANNEL_POSITION_LFE] = SND_MIXER_SCHN_WOOFER,
[PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_SIDE_LEFT] = SND_MIXER_SCHN_SIDE_LEFT,
[PA_CHANNEL_POSITION_SIDE_RIGHT] = SND_MIXER_SCHN_SIDE_RIGHT,
[PA_CHANNEL_POSITION_AUX0] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX1] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX2] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX3] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX4] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX5] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX6] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX7] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX8] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX9] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX10] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX11] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX12] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX13] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX14] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX15] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX16] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX17] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX18] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX19] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX20] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX21] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX22] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX23] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX24] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX25] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX26] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX27] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX28] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX29] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX30] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX31] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_TOP_CENTER] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_TOP_FRONT_CENTER] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_TOP_FRONT_LEFT] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_TOP_FRONT_RIGHT] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_TOP_REAR_CENTER] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_TOP_REAR_LEFT] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_TOP_REAR_RIGHT] = SND_MIXER_SCHN_UNKNOWN
};
static void setting_free(pa_alsa_setting *s) {
pa_assert(s);
if (s->options)
pa_idxset_free(s->options, NULL, NULL);
pa_xfree(s->name);
pa_xfree(s->description);
pa_xfree(s);
}
static void option_free(pa_alsa_option *o) {
pa_assert(o);
pa_xfree(o->alsa_name);
pa_xfree(o->name);
pa_xfree(o->description);
pa_xfree(o);
}
static void element_free(pa_alsa_element *e) {
pa_alsa_option *o;
pa_assert(e);
while ((o = e->options)) {
PA_LLIST_REMOVE(pa_alsa_option, e->options, o);
option_free(o);
}
pa_xfree(e->alsa_name);
pa_xfree(e);
}
void pa_alsa_path_free(pa_alsa_path *p) {
pa_alsa_element *e;
pa_alsa_setting *s;
pa_assert(p);
while ((e = p->elements)) {
PA_LLIST_REMOVE(pa_alsa_element, p->elements, e);
element_free(e);
}
while ((s = p->settings)) {
PA_LLIST_REMOVE(pa_alsa_setting, p->settings, s);
setting_free(s);
}
pa_xfree(p->name);
pa_xfree(p->description);
pa_xfree(p);
}
void pa_alsa_path_set_free(pa_alsa_path_set *ps) {
pa_alsa_path *p;
pa_assert(ps);
while ((p = ps->paths)) {
PA_LLIST_REMOVE(pa_alsa_path, ps->paths, p);
pa_alsa_path_free(p);
}
pa_xfree(ps);
}
static long to_alsa_dB(pa_volume_t v) {
return (long) (pa_sw_volume_to_dB(v) * 100.0);
}
static pa_volume_t from_alsa_dB(long v) {
return pa_sw_volume_from_dB((double) v / 100.0);
}
static long to_alsa_volume(pa_volume_t v, long min, long max) {
long w;
w = (long) round(((double) v * (double) (max - min)) / PA_VOLUME_NORM) + min;
return PA_CLAMP_UNLIKELY(w, min, max);
}
static pa_volume_t from_alsa_volume(long v, long min, long max) {
return (pa_volume_t) round(((double) (v - min) * PA_VOLUME_NORM) / (double) (max - min));
}
#define SELEM_INIT(sid, name) \
do { \
snd_mixer_selem_id_alloca(&(sid)); \
snd_mixer_selem_id_set_name((sid), (name)); \
snd_mixer_selem_id_set_index((sid), 0); \
} while(FALSE)
static int element_get_volume(pa_alsa_element *e, snd_mixer_t *m, const pa_channel_map *cm, pa_cvolume *v) {
snd_mixer_selem_id_t *sid;
snd_mixer_elem_t *me;
snd_mixer_selem_channel_id_t c;
pa_channel_position_mask_t mask = 0;
unsigned k;
pa_assert(m);
pa_assert(e);
pa_assert(cm);
pa_assert(v);
SELEM_INIT(sid, e->alsa_name);
if (!(me = snd_mixer_find_selem(m, sid))) {
pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
return -1;
}
pa_cvolume_mute(v, cm->channels);
/* We take the highest volume of all channels that match */
for (c = 0; c <= SND_MIXER_SCHN_LAST; c++) {
int r;
pa_volume_t f;
if (e->has_dB) {
long value = 0;
if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
if (snd_mixer_selem_has_playback_channel(me, c))
r = snd_mixer_selem_get_playback_dB(me, c, &value);
else
r = -1;
} else {
if (snd_mixer_selem_has_capture_channel(me, c))
r = snd_mixer_selem_get_capture_dB(me, c, &value);
else
r = -1;
}
if (r < 0)
continue;
#ifdef HAVE_VALGRIND_MEMCHECK_H
VALGRIND_MAKE_MEM_DEFINED(&value, sizeof(value));
#endif
f = from_alsa_dB(value);
} else {
long value = 0;
if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
if (snd_mixer_selem_has_playback_channel(me, c))
r = snd_mixer_selem_get_playback_volume(me, c, &value);
else
r = -1;
} else {
if (snd_mixer_selem_has_capture_channel(me, c))
r = snd_mixer_selem_get_capture_volume(me, c, &value);
else
r = -1;
}
if (r < 0)
continue;
f = from_alsa_volume(value, e->min_volume, e->max_volume);
}
for (k = 0; k < cm->channels; k++)
if (e->masks[c][e->n_channels-1] & PA_CHANNEL_POSITION_MASK(cm->map[k]))
if (v->values[k] < f)
v->values[k] = f;
mask |= e->masks[c][e->n_channels-1];
}
for (k = 0; k < cm->channels; k++)
if (!(mask & PA_CHANNEL_POSITION_MASK(cm->map[k])))
v->values[k] = PA_VOLUME_NORM;
return 0;
}
int pa_alsa_path_get_volume(pa_alsa_path *p, snd_mixer_t *m, const pa_channel_map *cm, pa_cvolume *v) {
pa_alsa_element *e;
pa_assert(m);
pa_assert(p);
pa_assert(cm);
pa_assert(v);
if (!p->has_volume)
return -1;
pa_cvolume_reset(v, cm->channels);
PA_LLIST_FOREACH(e, p->elements) {
pa_cvolume ev;
if (e->volume_use != PA_ALSA_VOLUME_MERGE)
continue;
pa_assert(!p->has_dB || e->has_dB);
if (element_get_volume(e, m, cm, &ev) < 0)
return -1;
/* If we have no dB information all we can do is take the first element and leave */
if (!p->has_dB) {
*v = ev;
return 0;
}
pa_sw_cvolume_multiply(v, v, &ev);
}
return 0;
}
static int element_get_switch(pa_alsa_element *e, snd_mixer_t *m, pa_bool_t *b) {
snd_mixer_selem_id_t *sid;
snd_mixer_elem_t *me;
snd_mixer_selem_channel_id_t c;
pa_assert(m);
pa_assert(e);
pa_assert(b);
SELEM_INIT(sid, e->alsa_name);
if (!(me = snd_mixer_find_selem(m, sid))) {
pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
return -1;
}
/* We return muted if at least one channel is muted */
for (c = 0; c <= SND_MIXER_SCHN_LAST; c++) {
int r;
int value = 0;
if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
if (snd_mixer_selem_has_playback_channel(me, c))
r = snd_mixer_selem_get_playback_switch(me, c, &value);
else
r = -1;
} else {
if (snd_mixer_selem_has_capture_channel(me, c))
r = snd_mixer_selem_get_capture_switch(me, c, &value);
else
r = -1;
}
if (r < 0)
continue;
if (!value) {
*b = FALSE;
return 0;
}
}
*b = TRUE;
return 0;
}
int pa_alsa_path_get_mute(pa_alsa_path *p, snd_mixer_t *m, pa_bool_t *muted) {
pa_alsa_element *e;
pa_assert(m);
pa_assert(p);
pa_assert(muted);
if (!p->has_mute)
return -1;
PA_LLIST_FOREACH(e, p->elements) {
pa_bool_t b;
if (e->switch_use != PA_ALSA_SWITCH_MUTE)
continue;
if (element_get_switch(e, m, &b) < 0)
return -1;
if (!b) {
*muted = TRUE;
return 0;
}
}
*muted = FALSE;
return 0;
}
static int element_set_volume(pa_alsa_element *e, snd_mixer_t *m, const pa_channel_map *cm, pa_cvolume *v, pa_bool_t write_to_hw) {
snd_mixer_selem_id_t *sid;
pa_cvolume rv;
snd_mixer_elem_t *me;
snd_mixer_selem_channel_id_t c;
pa_channel_position_mask_t mask = 0;
unsigned k;
pa_assert(m);
pa_assert(e);
pa_assert(cm);
pa_assert(v);
pa_assert(pa_cvolume_compatible_with_channel_map(v, cm));
SELEM_INIT(sid, e->alsa_name);
if (!(me = snd_mixer_find_selem(m, sid))) {
pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
return -1;
}
pa_cvolume_mute(&rv, cm->channels);
for (c = 0; c <= SND_MIXER_SCHN_LAST; c++) {
int r;
pa_volume_t f = PA_VOLUME_MUTED;
pa_bool_t found = FALSE;
for (k = 0; k < cm->channels; k++)
if (e->masks[c][e->n_channels-1] & PA_CHANNEL_POSITION_MASK(cm->map[k])) {
found = TRUE;
if (v->values[k] > f)
f = v->values[k];
}
if (!found) {
/* Hmm, so this channel does not exist in the volume
* struct, so let's bind it to the overall max of the
* volume. */
f = pa_cvolume_max(v);
}
if (e->has_dB) {
long value = to_alsa_dB(f);
if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
/* If we call set_play_volume() without checking first
* if the channel is available, ALSA behaves ver
* strangely and doesn't fail the call */
if (snd_mixer_selem_has_playback_channel(me, c)) {
if (write_to_hw) {
if ((r = snd_mixer_selem_set_playback_dB(me, c, value, +1)) >= 0)
r = snd_mixer_selem_get_playback_dB(me, c, &value);
} else {
long alsa_val;
if ((r = snd_mixer_selem_ask_playback_dB_vol(me, value, +1, &alsa_val)) >= 0)
r = snd_mixer_selem_ask_playback_vol_dB(me, alsa_val, &value);
}
} else
r = -1;
} else {
if (snd_mixer_selem_has_capture_channel(me, c)) {
if (write_to_hw) {
if ((r = snd_mixer_selem_set_capture_dB(me, c, value, +1)) >= 0)
r = snd_mixer_selem_get_capture_dB(me, c, &value);
} else {
long alsa_val;
if ((r = snd_mixer_selem_ask_capture_dB_vol(me, value, +1, &alsa_val)) >= 0)
r = snd_mixer_selem_ask_capture_vol_dB(me, alsa_val, &value);
}
} else
r = -1;
}
if (r < 0)
continue;
#ifdef HAVE_VALGRIND_MEMCHECK_H
VALGRIND_MAKE_MEM_DEFINED(&value, sizeof(value));
#endif
f = from_alsa_dB(value);
} else {
long value;
value = to_alsa_volume(f, e->min_volume, e->max_volume);
if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
if (snd_mixer_selem_has_playback_channel(me, c)) {
if ((r = snd_mixer_selem_set_playback_volume(me, c, value)) >= 0)
r = snd_mixer_selem_get_playback_volume(me, c, &value);
} else
r = -1;
} else {
if (snd_mixer_selem_has_capture_channel(me, c)) {
if ((r = snd_mixer_selem_set_capture_volume(me, c, value)) >= 0)
r = snd_mixer_selem_get_capture_volume(me, c, &value);
} else
r = -1;
}
if (r < 0)
continue;
f = from_alsa_volume(value, e->min_volume, e->max_volume);
}
for (k = 0; k < cm->channels; k++)
if (e->masks[c][e->n_channels-1] & PA_CHANNEL_POSITION_MASK(cm->map[k]))
if (rv.values[k] < f)
rv.values[k] = f;
mask |= e->masks[c][e->n_channels-1];
}
for (k = 0; k < cm->channels; k++)
if (!(mask & PA_CHANNEL_POSITION_MASK(cm->map[k])))
rv.values[k] = PA_VOLUME_NORM;
*v = rv;
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 write_to_hw) {
pa_alsa_element *e;
pa_cvolume rv;
pa_assert(m);
pa_assert(p);
pa_assert(cm);
pa_assert(v);
pa_assert(pa_cvolume_compatible_with_channel_map(v, cm));
if (!p->has_volume)
return -1;
rv = *v; /* Remaining adjustment */
pa_cvolume_reset(v, cm->channels); /* Adjustment done */
PA_LLIST_FOREACH(e, p->elements) {
pa_cvolume ev;
if (e->volume_use != PA_ALSA_VOLUME_MERGE)
continue;
pa_assert(!p->has_dB || e->has_dB);
ev = rv;
if (element_set_volume(e, m, cm, &ev, write_to_hw) < 0)
return -1;
if (!p->has_dB) {
*v = ev;
return 0;
}
pa_sw_cvolume_multiply(v, v, &ev);
pa_sw_cvolume_divide(&rv, &rv, &ev);
}
return 0;
}
static int element_set_switch(pa_alsa_element *e, snd_mixer_t *m, pa_bool_t b) {
snd_mixer_elem_t *me;
snd_mixer_selem_id_t *sid;
int r;
pa_assert(m);
pa_assert(e);
SELEM_INIT(sid, e->alsa_name);
if (!(me = snd_mixer_find_selem(m, sid))) {
pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
return -1;
}
if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
r = snd_mixer_selem_set_playback_switch_all(me, b);
else
r = snd_mixer_selem_set_capture_switch_all(me, b);
if (r < 0)
pa_log_warn("Failed to set switch of %s: %s", e->alsa_name, pa_alsa_strerror(errno));
return r;
}
int pa_alsa_path_set_mute(pa_alsa_path *p, snd_mixer_t *m, pa_bool_t muted) {
pa_alsa_element *e;
pa_assert(m);
pa_assert(p);
if (!p->has_mute)
return -1;
PA_LLIST_FOREACH(e, p->elements) {
if (e->switch_use != PA_ALSA_SWITCH_MUTE)
continue;
if (element_set_switch(e, m, !muted) < 0)
return -1;
}
return 0;
}
static int element_mute_volume(pa_alsa_element *e, snd_mixer_t *m) {
snd_mixer_elem_t *me;
snd_mixer_selem_id_t *sid;
int r;
pa_assert(m);
pa_assert(e);
SELEM_INIT(sid, e->alsa_name);
if (!(me = snd_mixer_find_selem(m, sid))) {
pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
return -1;
}
if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
r = snd_mixer_selem_set_playback_volume_all(me, e->min_volume);
else
r = snd_mixer_selem_set_capture_volume_all(me, e->min_volume);
if (r < 0)
pa_log_warn("Faile to set volume to muted of %s: %s", e->alsa_name, pa_alsa_strerror(errno));
return r;
}
/* The volume to 0dB */
static int element_zero_volume(pa_alsa_element *e, snd_mixer_t *m) {
snd_mixer_elem_t *me;
snd_mixer_selem_id_t *sid;
int r;
pa_assert(m);
pa_assert(e);
SELEM_INIT(sid, e->alsa_name);
if (!(me = snd_mixer_find_selem(m, sid))) {
pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
return -1;
}
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);
if (r < 0)
pa_log_warn("Faile to set volume to 0dB of %s: %s", e->alsa_name, pa_alsa_strerror(errno));
return r;
}
int pa_alsa_path_select(pa_alsa_path *p, snd_mixer_t *m) {
pa_alsa_element *e;
int r = 0;
pa_assert(m);
pa_assert(p);
pa_log_debug("Activating path %s", p->name);
pa_alsa_path_dump(p);
PA_LLIST_FOREACH(e, p->elements) {
switch (e->switch_use) {
case PA_ALSA_SWITCH_OFF:
r = element_set_switch(e, m, FALSE);
break;
case PA_ALSA_SWITCH_ON:
r = element_set_switch(e, m, TRUE);
break;
case PA_ALSA_SWITCH_MUTE:
case PA_ALSA_SWITCH_IGNORE:
case PA_ALSA_SWITCH_SELECT:
r = 0;
break;
}
if (r < 0)
return -1;
switch (e->volume_use) {
case PA_ALSA_VOLUME_OFF:
r = element_mute_volume(e, m);
break;
case PA_ALSA_VOLUME_ZERO:
r = element_zero_volume(e, m);
break;
case PA_ALSA_VOLUME_MERGE:
case PA_ALSA_VOLUME_IGNORE:
r = 0;
break;
}
if (r < 0)
return -1;
}
return 0;
}
static int check_required(pa_alsa_element *e, snd_mixer_elem_t *me) {
pa_bool_t has_switch;
pa_bool_t has_enumeration;
pa_bool_t has_volume;
pa_assert(e);
pa_assert(me);
if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
has_switch =
snd_mixer_selem_has_playback_switch(me) ||
(e->direction_try_other && snd_mixer_selem_has_capture_switch(me));
} else {
has_switch =
snd_mixer_selem_has_capture_switch(me) ||
(e->direction_try_other && snd_mixer_selem_has_playback_switch(me));
}
if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
has_volume =
snd_mixer_selem_has_playback_volume(me) ||
(e->direction_try_other && snd_mixer_selem_has_capture_volume(me));
} else {
has_volume =
snd_mixer_selem_has_capture_volume(me) ||
(e->direction_try_other && snd_mixer_selem_has_playback_volume(me));
}
has_enumeration = snd_mixer_selem_is_enumerated(me);
if ((e->required == PA_ALSA_REQUIRED_SWITCH && !has_switch) ||
(e->required == PA_ALSA_REQUIRED_VOLUME && !has_volume) ||
(e->required == PA_ALSA_REQUIRED_ENUMERATION && !has_enumeration))
return -1;
if (e->required == PA_ALSA_REQUIRED_ANY && !(has_switch || has_volume || has_enumeration))
return -1;
if ((e->required_absent == PA_ALSA_REQUIRED_SWITCH && has_switch) ||
(e->required_absent == PA_ALSA_REQUIRED_VOLUME && has_volume) ||
(e->required_absent == PA_ALSA_REQUIRED_ENUMERATION && has_enumeration))
return -1;
if (e->required_absent == PA_ALSA_REQUIRED_ANY && (has_switch || has_volume || has_enumeration))
return -1;
return 0;
}
static int element_probe(pa_alsa_element *e, snd_mixer_t *m) {
snd_mixer_selem_id_t *sid;
snd_mixer_elem_t *me;
pa_assert(m);
pa_assert(e);
SELEM_INIT(sid, e->alsa_name);
if (!(me = snd_mixer_find_selem(m, sid))) {
if (e->required != PA_ALSA_REQUIRED_IGNORE)
return -1;
e->switch_use = PA_ALSA_SWITCH_IGNORE;
e->volume_use = PA_ALSA_VOLUME_IGNORE;
e->enumeration_use = PA_ALSA_ENUMERATION_IGNORE;
return 0;
}
if (e->switch_use != PA_ALSA_SWITCH_IGNORE) {
if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
if (!snd_mixer_selem_has_playback_switch(me)) {
if (e->direction_try_other && snd_mixer_selem_has_capture_switch(me))
e->direction = PA_ALSA_DIRECTION_INPUT;
else
e->switch_use = PA_ALSA_SWITCH_IGNORE;
}
} else {
if (!snd_mixer_selem_has_capture_switch(me)) {
if (e->direction_try_other && snd_mixer_selem_has_playback_switch(me))
e->direction = PA_ALSA_DIRECTION_OUTPUT;
else
e->switch_use = PA_ALSA_SWITCH_IGNORE;
}
}
if (e->switch_use != PA_ALSA_SWITCH_IGNORE)
e->direction_try_other = FALSE;
}
if (e->volume_use != PA_ALSA_VOLUME_IGNORE) {
if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
if (!snd_mixer_selem_has_playback_volume(me)) {
if (e->direction_try_other && snd_mixer_selem_has_capture_volume(me))
e->direction = PA_ALSA_DIRECTION_INPUT;
else
e->volume_use = PA_ALSA_VOLUME_IGNORE;
}
} else {
if (!snd_mixer_selem_has_capture_volume(me)) {
if (e->direction_try_other && snd_mixer_selem_has_playback_volume(me))
e->direction = PA_ALSA_DIRECTION_OUTPUT;
else
e->volume_use = PA_ALSA_VOLUME_IGNORE;
}
}
if (e->volume_use != PA_ALSA_VOLUME_IGNORE) {
long min_dB = 0, max_dB = 0;
int r;
e->direction_try_other = FALSE;
if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
e->has_dB = snd_mixer_selem_get_playback_dB_range(me, &min_dB, &max_dB) >= 0;
else
e->has_dB = snd_mixer_selem_get_capture_dB_range(me, &min_dB, &max_dB) >= 0;
if (e->has_dB) {
#ifdef HAVE_VALGRIND_MEMCHECK_H
VALGRIND_MAKE_MEM_DEFINED(&min_dB, sizeof(min_dB));
VALGRIND_MAKE_MEM_DEFINED(&max_dB, sizeof(max_dB));
#endif
e->min_dB = ((double) min_dB) / 100.0;
e->max_dB = ((double) max_dB) / 100.0;
if (min_dB >= max_dB) {
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);
e->has_dB = FALSE;
}
}
if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
r = snd_mixer_selem_get_playback_volume_range(me, &e->min_volume, &e->max_volume);
else
r = snd_mixer_selem_get_capture_volume_range(me, &e->min_volume, &e->max_volume);
if (r < 0) {
pa_log_warn("Failed to get volume range of %s: %s", e->alsa_name, pa_alsa_strerror(r));
return -1;
}
if (e->min_volume >= e->max_volume) {
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);
e->volume_use = PA_ALSA_VOLUME_IGNORE;
} else {
pa_bool_t is_mono;
pa_channel_position_t p;
if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
is_mono = snd_mixer_selem_is_playback_mono(me) > 0;
else
is_mono = snd_mixer_selem_is_capture_mono(me) > 0;
if (is_mono) {
e->n_channels = 1;
if (!e->override_map) {
for (p = PA_CHANNEL_POSITION_FRONT_LEFT; p < PA_CHANNEL_POSITION_MAX; p++)
e->masks[alsa_channel_ids[p]][e->n_channels-1] = 0;
e->masks[SND_MIXER_SCHN_MONO][e->n_channels-1] = PA_CHANNEL_POSITION_MASK_ALL;
}
e->merged_mask = e->masks[SND_MIXER_SCHN_MONO][e->n_channels-1];
} else {
e->n_channels = 0;
for (p = PA_CHANNEL_POSITION_FRONT_LEFT; p < PA_CHANNEL_POSITION_MAX; p++) {
if (alsa_channel_ids[p] == SND_MIXER_SCHN_UNKNOWN)
continue;
if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
e->n_channels += snd_mixer_selem_has_playback_channel(me, alsa_channel_ids[p]) > 0;
else
e->n_channels += snd_mixer_selem_has_capture_channel(me, alsa_channel_ids[p]) > 0;
}
if (e->n_channels <= 0) {
pa_log_warn("Volume element %s with no channels?", e->alsa_name);
return -1;
}
if (!e->override_map) {
for (p = PA_CHANNEL_POSITION_FRONT_LEFT; p < PA_CHANNEL_POSITION_MAX; p++) {
pa_bool_t has_channel;
if (alsa_channel_ids[p] == SND_MIXER_SCHN_UNKNOWN)
continue;
if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
has_channel = snd_mixer_selem_has_playback_channel(me, alsa_channel_ids[p]) > 0;
else
has_channel = snd_mixer_selem_has_capture_channel(me, alsa_channel_ids[p]) > 0;
e->masks[alsa_channel_ids[p]][e->n_channels-1] = has_channel ? PA_CHANNEL_POSITION_MASK(p) : 0;
}
}
e->merged_mask = 0;
for (p = PA_CHANNEL_POSITION_FRONT_LEFT; p < PA_CHANNEL_POSITION_MAX; p++)
e->merged_mask |= e->masks[alsa_channel_ids[p]][e->n_channels-1];
}
}
}
}
if (check_required(e, me) < 0)
return -1;
if (e->switch_use == PA_ALSA_SWITCH_SELECT) {
pa_alsa_option *o;
PA_LLIST_FOREACH(o, e->options)
o->alsa_idx = pa_streq(o->alsa_name, "on") ? 1 : 0;
} else if (e->enumeration_use == PA_ALSA_ENUMERATION_SELECT) {
int n;
pa_alsa_option *o;
if ((n = snd_mixer_selem_get_enum_items(me)) < 0) {
pa_log("snd_mixer_selem_get_enum_items() failed: %s", pa_alsa_strerror(n));
return -1;
}
PA_LLIST_FOREACH(o, e->options) {
int i;
for (i = 0; i < n; i++) {
char buf[128];
if (snd_mixer_selem_get_enum_item_name(me, i, sizeof(buf), buf) < 0)
continue;
if (!pa_streq(buf, o->alsa_name))
continue;
o->alsa_idx = i;
}
}
}
return 0;
}
static pa_alsa_element* element_get(pa_alsa_path *p, const char *section, pa_bool_t prefixed) {
pa_alsa_element *e;
pa_assert(p);
pa_assert(section);
if (prefixed) {
if (!pa_startswith(section, "Element "))
return NULL;
section += 8;
}
/* This is not an element section, but an enum section? */
if (strchr(section, ':'))
return NULL;
if (p->last_element && pa_streq(p->last_element->alsa_name, section))
return p->last_element;
PA_LLIST_FOREACH(e, p->elements)
if (pa_streq(e->alsa_name, section))
goto finish;
e = pa_xnew0(pa_alsa_element, 1);
e->path = p;
e->alsa_name = pa_xstrdup(section);
e->direction = p->direction;
PA_LLIST_INSERT_AFTER(pa_alsa_element, p->elements, p->last_element, e);
finish:
p->last_element = e;
return e;
}
static pa_alsa_option* option_get(pa_alsa_path *p, const char *section) {
char *en;
const char *on;
pa_alsa_option *o;
pa_alsa_element *e;
if (!pa_startswith(section, "Option "))
return NULL;
section += 7;
/* This is not an enum section, but an element section? */
if (!(on = strchr(section, ':')))
return NULL;
en = pa_xstrndup(section, on - section);
on++;
if (p->last_option &&
pa_streq(p->last_option->element->alsa_name, en) &&
pa_streq(p->last_option->alsa_name, on)) {
pa_xfree(en);
return p->last_option;
}
pa_assert_se(e = element_get(p, en, FALSE));
pa_xfree(en);
PA_LLIST_FOREACH(o, e->options)
if (pa_streq(o->alsa_name, on))
goto finish;
o = pa_xnew0(pa_alsa_option, 1);
o->element = e;
o->alsa_name = pa_xstrdup(on);
o->alsa_idx = -1;
if (p->last_option && p->last_option->element == e)
PA_LLIST_INSERT_AFTER(pa_alsa_option, e->options, p->last_option, o);
else
PA_LLIST_PREPEND(pa_alsa_option, e->options, o);
finish:
p->last_option = o;
return o;
}
static int element_parse_switch(
const char *filename,
unsigned line,
const char *section,
const char *lvalue,
const char *rvalue,
void *data,
void *userdata) {
pa_alsa_path *p = userdata;
pa_alsa_element *e;
pa_assert(p);
if (!(e = element_get(p, section, TRUE))) {
pa_log("[%s:%u] Switch makes no sense in '%s'", filename, line, section);
return -1;
}
if (pa_streq(rvalue, "ignore"))
e->switch_use = PA_ALSA_SWITCH_IGNORE;
else if (pa_streq(rvalue, "mute"))
e->switch_use = PA_ALSA_SWITCH_MUTE;
else if (pa_streq(rvalue, "off"))
e->switch_use = PA_ALSA_SWITCH_OFF;
else if (pa_streq(rvalue, "on"))
e->switch_use = PA_ALSA_SWITCH_ON;
else if (pa_streq(rvalue, "select"))
e->switch_use = PA_ALSA_SWITCH_SELECT;
else {
pa_log("[%s:%u] Switch invalid of '%s'", filename, line, section);
return -1;
}
return 0;
}
static int element_parse_volume(
const char *filename,
unsigned line,
const char *section,
const char *lvalue,
const char *rvalue,
void *data,
void *userdata) {
pa_alsa_path *p = userdata;
pa_alsa_element *e;
pa_assert(p);
if (!(e = element_get(p, section, TRUE))) {
pa_log("[%s:%u] Volume makes no sense in '%s'", filename, line, section);
return -1;
}
if (pa_streq(rvalue, "ignore"))
e->volume_use = PA_ALSA_VOLUME_IGNORE;
else if (pa_streq(rvalue, "merge"))
e->volume_use = PA_ALSA_VOLUME_MERGE;
else if (pa_streq(rvalue, "off"))
e->volume_use = PA_ALSA_VOLUME_OFF;
else if (pa_streq(rvalue, "zero"))
e->volume_use = PA_ALSA_VOLUME_ZERO;
else {
pa_log("[%s:%u] Volume invalid of '%s'", filename, line, section);
return -1;
}
return 0;
}
static int element_parse_enumeration(
const char *filename,
unsigned line,
const char *section,
const char *lvalue,
const char *rvalue,
void *data,
void *userdata) {
pa_alsa_path *p = userdata;
pa_alsa_element *e;
pa_assert(p);
if (!(e = element_get(p, section, TRUE))) {
pa_log("[%s:%u] Enumeration makes no sense in '%s'", filename, line, section);
return -1;
}
if (pa_streq(rvalue, "ignore"))
e->enumeration_use = PA_ALSA_ENUMERATION_IGNORE;
else if (pa_streq(rvalue, "select"))
e->enumeration_use = PA_ALSA_ENUMERATION_SELECT;
else {
pa_log("[%s:%u] Enumeration invalid of '%s'", filename, line, section);
return -1;
}
return 0;
}
static int option_parse_priority(
const char *filename,
unsigned line,
const char *section,
const char *lvalue,
const char *rvalue,
void *data,
void *userdata) {
pa_alsa_path *p = userdata;
pa_alsa_option *o;
uint32_t prio;
pa_assert(p);
if (!(o = option_get(p, section))) {
pa_log("[%s:%u] Priority makes no sense in '%s'", filename, line, section);
return -1;
}
if (pa_atou(rvalue, &prio) < 0) {
pa_log("[%s:%u] Priority invalid of '%s'", filename, line, section);
return -1;
}
o->priority = prio;
return 0;
}
static int option_parse_name(
const char *filename,
unsigned line,
const char *section,
const char *lvalue,
const char *rvalue,
void *data,
void *userdata) {
pa_alsa_path *p = userdata;
pa_alsa_option *o;
pa_assert(p);
if (!(o = option_get(p, section))) {
pa_log("[%s:%u] Name makes no sense in '%s'", filename, line, section);
return -1;
}
pa_xfree(o->name);
o->name = pa_xstrdup(rvalue);
return 0;
}
static int element_parse_required(
const char *filename,
unsigned line,
const char *section,
const char *lvalue,
const char *rvalue,
void *data,
void *userdata) {
pa_alsa_path *p = userdata;
pa_alsa_element *e;
pa_alsa_required_t req;
pa_assert(p);
if (!(e = element_get(p, section, TRUE))) {
pa_log("[%s:%u] Required makes no sense in '%s'", filename, line, section);
return -1;
}
if (pa_streq(rvalue, "ignore"))
req = PA_ALSA_REQUIRED_IGNORE;
else if (pa_streq(rvalue, "switch"))
req = PA_ALSA_REQUIRED_SWITCH;
else if (pa_streq(rvalue, "volume"))
req = PA_ALSA_REQUIRED_VOLUME;
else if (pa_streq(rvalue, "enumeration"))
req = PA_ALSA_REQUIRED_ENUMERATION;
else if (pa_streq(rvalue, "any"))
req = PA_ALSA_REQUIRED_ANY;
else {
pa_log("[%s:%u] Required invalid of '%s'", filename, line, section);
return -1;
}
if (pa_streq(lvalue, "required-absent"))
e->required_absent = req;
else
e->required = req;
return 0;
}
static int element_parse_direction(
const char *filename,
unsigned line,
const char *section,
const char *lvalue,
const char *rvalue,
void *data,
void *userdata) {
pa_alsa_path *p = userdata;
pa_alsa_element *e;
pa_assert(p);
if (!(e = element_get(p, section, TRUE))) {
pa_log("[%s:%u] Direction makes no sense in '%s'", filename, line, section);
return -1;
}
if (pa_streq(rvalue, "playback"))
e->direction = PA_ALSA_DIRECTION_OUTPUT;
else if (pa_streq(rvalue, "capture"))
e->direction = PA_ALSA_DIRECTION_INPUT;
else {
pa_log("[%s:%u] Direction invalid of '%s'", filename, line, section);
return -1;
}
return 0;
}
static int element_parse_direction_try_other(
const char *filename,
unsigned line,
const char *section,
const char *lvalue,
const char *rvalue,
void *data,
void *userdata) {
pa_alsa_path *p = userdata;
pa_alsa_element *e;
int yes;
if (!(e = element_get(p, section, TRUE))) {
pa_log("[%s:%u] Direction makes no sense in '%s'", filename, line, section);
return -1;
}
if ((yes = pa_parse_boolean(rvalue)) < 0) {
pa_log("[%s:%u] Direction invalid of '%s'", filename, line, section);
return -1;
}
e->direction_try_other = !!yes;
return 0;
}
static pa_channel_position_mask_t parse_mask(const char *m) {
pa_channel_position_mask_t v;
if (pa_streq(m, "all-left"))
v = PA_CHANNEL_POSITION_MASK_LEFT;
else if (pa_streq(m, "all-right"))
v = PA_CHANNEL_POSITION_MASK_RIGHT;
else if (pa_streq(m, "all-center"))
v = PA_CHANNEL_POSITION_MASK_CENTER;
else if (pa_streq(m, "all-front"))
v = PA_CHANNEL_POSITION_MASK_FRONT;
else if (pa_streq(m, "all-rear"))
v = PA_CHANNEL_POSITION_MASK_REAR;
else if (pa_streq(m, "all-side"))
v = PA_CHANNEL_POSITION_MASK_SIDE_OR_TOP_CENTER;
else if (pa_streq(m, "all-top"))
v = PA_CHANNEL_POSITION_MASK_TOP;
else if (pa_streq(m, "all-no-lfe"))
v = PA_CHANNEL_POSITION_MASK_ALL ^ PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_LFE);
else if (pa_streq(m, "all"))
v = PA_CHANNEL_POSITION_MASK_ALL;
else {
pa_channel_position_t p;
if ((p = pa_channel_position_from_string(m)) == PA_CHANNEL_POSITION_INVALID)
return 0;
v = PA_CHANNEL_POSITION_MASK(p);
}
return v;
}
static int element_parse_override_map(
const char *filename,
unsigned line,
const char *section,
const char *lvalue,
const char *rvalue,
void *data,
void *userdata) {
pa_alsa_path *p = userdata;
pa_alsa_element *e;
const char *state = NULL;
unsigned i = 0;
char *n;
if (!(e = element_get(p, section, TRUE))) {
pa_log("[%s:%u] Override map makes no sense in '%s'", filename, line, section);
return -1;
}
while ((n = pa_split(rvalue, ",", &state))) {
pa_channel_position_mask_t m;
if (!*n)
m = 0;
else {
if ((m = parse_mask(n)) == 0) {
pa_log("[%s:%u] Override map '%s' invalid in '%s'", filename, line, n, section);
pa_xfree(n);
return -1;
}
}
if (pa_streq(lvalue, "override-map.1"))
e->masks[i++][0] = m;
else
e->masks[i++][1] = m;
/* Later on we might add override-map.3 and so on here ... */
pa_xfree(n);
}
e->override_map = TRUE;
return 0;
}
static int element_set_option(pa_alsa_element *e, snd_mixer_t *m, int alsa_idx) {
snd_mixer_selem_id_t *sid;
snd_mixer_elem_t *me;
int r;
pa_assert(e);
pa_assert(m);
SELEM_INIT(sid, e->alsa_name);
if (!(me = snd_mixer_find_selem(m, sid))) {
pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
return -1;
}
if (e->switch_use == PA_ALSA_SWITCH_SELECT) {
if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
r = snd_mixer_selem_set_playback_switch_all(me, alsa_idx);
else
r = snd_mixer_selem_set_capture_switch_all(me, alsa_idx);
if (r < 0)
pa_log_warn("Faile to set switch of %s: %s", e->alsa_name, pa_alsa_strerror(errno));
} else {
pa_assert(e->enumeration_use == PA_ALSA_ENUMERATION_SELECT);
if ((r = snd_mixer_selem_set_enum_item(me, 0, alsa_idx)) < 0)
pa_log_warn("Faile to set enumeration of %s: %s", e->alsa_name, pa_alsa_strerror(errno));
}
return r;
}
int pa_alsa_setting_select(pa_alsa_setting *s, snd_mixer_t *m) {
pa_alsa_option *o;
uint32_t idx;
pa_assert(s);
pa_assert(m);
PA_IDXSET_FOREACH(o, s->options, idx)
element_set_option(o->element, m, o->alsa_idx);
return 0;
}
static int option_verify(pa_alsa_option *o) {
static const struct description_map well_known_descriptions[] = {
{ "input", N_("Input") },
{ "input-docking", N_("Docking Station Input") },
{ "input-docking-microphone", N_("Docking Station Microphone") },
{ "input-linein", N_("Line-In") },
{ "input-microphone", N_("Microphone") },
{ "input-microphone-external", N_("External Microphone") },
{ "input-microphone-internal", N_("Internal Microphone") },
{ "input-radio", N_("Radio") },
{ "input-video", N_("Video") },
{ "input-agc-on", N_("Automatic Gain Control") },
{ "input-agc-off", N_("No Automatic Gain Control") },
{ "input-boost-on", N_("Boost") },
{ "input-boost-off", N_("No Boost") },
{ "output-amplifier-on", N_("Amplifier") },
{ "output-amplifier-off", N_("No Amplifier") },
{ "output-bass-boost-on", N_("Bass Boost") },
{ "output-bass-boost-off", N_("No Bass Boost") },
{ "output-speaker", N_("Speaker") },
{ "output-headphones", N_("Headphones") }
};
pa_assert(o);
if (!o->name) {
pa_log("No name set for option %s", o->alsa_name);
return -1;
}
if (o->element->enumeration_use != PA_ALSA_ENUMERATION_SELECT &&
o->element->switch_use != PA_ALSA_SWITCH_SELECT) {
pa_log("Element %s of option %s not set for select.", o->element->alsa_name, o->name);
return -1;
}
if (o->element->switch_use == PA_ALSA_SWITCH_SELECT &&
!pa_streq(o->alsa_name, "on") &&
!pa_streq(o->alsa_name, "off")) {
pa_log("Switch %s options need be named off or on ", o->element->alsa_name);
return -1;
}
if (!o->description)
o->description = pa_xstrdup(lookup_description(o->name,
well_known_descriptions,
PA_ELEMENTSOF(well_known_descriptions)));
if (!o->description)
o->description = pa_xstrdup(o->name);
return 0;
}
static int element_verify(pa_alsa_element *e) {
pa_alsa_option *o;
pa_assert(e);
if ((e->required != PA_ALSA_REQUIRED_IGNORE && e->required == e->required_absent) ||
(e->required_absent == PA_ALSA_REQUIRED_ANY && e->required != PA_ALSA_REQUIRED_IGNORE)) {
pa_log("Element %s cannot be required and absent at the same time.", e->alsa_name);
return -1;
}
if (e->switch_use == PA_ALSA_SWITCH_SELECT && e->enumeration_use == PA_ALSA_ENUMERATION_SELECT) {
pa_log("Element %s cannot set select for both switch and enumeration.", e->alsa_name);
return -1;
}
PA_LLIST_FOREACH(o, e->options)
if (option_verify(o) < 0)
return -1;
return 0;
}
static int path_verify(pa_alsa_path *p) {
static const struct description_map well_known_descriptions[] = {
{ "analog-input", N_("Analog Input") },
{ "analog-input-microphone", N_("Analog Microphone") },
{ "analog-input-linein", N_("Analog Line-In") },
{ "analog-input-radio", N_("Analog Radio") },
{ "analog-input-video", N_("Analog Video") },
{ "analog-output", N_("Analog Output") },
{ "analog-output-headphones", N_("Analog Headphones") },
{ "analog-output-lfe-on-mono", N_("Analog Output (LFE)") },
{ "analog-output-mono", N_("Analog Mono Output") },
{ "analog-output-speaker", N_("Analog Speakers") },
{ "iec958-stereo-output", N_("Digital Output (IEC958)") },
{ "iec958-passthrough-output", N_("Digital Passthrough (IEC958)") }
};
pa_alsa_element *e;
pa_assert(p);
PA_LLIST_FOREACH(e, p->elements)
if (element_verify(e) < 0)
return -1;
if (!p->description)
p->description = pa_xstrdup(lookup_description(p->name,
well_known_descriptions,
PA_ELEMENTSOF(well_known_descriptions)));
if (!p->description)
p->description = pa_xstrdup(p->name);
return 0;
}
pa_alsa_path* pa_alsa_path_new(const char *fname, pa_alsa_direction_t direction) {
pa_alsa_path *p;
char *fn;
int r;
const char *n;
pa_config_item items[] = {
/* [General] */
{ "priority", pa_config_parse_unsigned, NULL, "General" },
{ "description", pa_config_parse_string, NULL, "General" },
{ "name", pa_config_parse_string, NULL, "General" },
/* [Option ...] */
{ "priority", option_parse_priority, NULL, NULL },
{ "name", option_parse_name, NULL, NULL },
/* [Element ...] */
{ "switch", element_parse_switch, NULL, NULL },
{ "volume", element_parse_volume, NULL, NULL },
{ "enumeration", element_parse_enumeration, NULL, NULL },
{ "override-map.1", element_parse_override_map, NULL, NULL },
{ "override-map.2", element_parse_override_map, NULL, NULL },
/* ... later on we might add override-map.3 and so on here ... */
{ "required", element_parse_required, NULL, NULL },
{ "required-absent", element_parse_required, NULL, NULL },
{ "direction", element_parse_direction, NULL, NULL },
{ "direction-try-other", element_parse_direction_try_other, NULL, NULL },
{ NULL, NULL, NULL, NULL }
};
pa_assert(fname);
p = pa_xnew0(pa_alsa_path, 1);
n = pa_path_get_filename(fname);
p->name = pa_xstrndup(n, strcspn(n, "."));
p->direction = direction;
items[0].data = &p->priority;
items[1].data = &p->description;
items[2].data = &p->name;
fn = pa_maybe_prefix_path(fname,
#if defined(__linux__) && !defined(__OPTIMIZE__)
pa_run_from_build_tree() ? PA_BUILDDIR "/modules/alsa/mixer/paths/" :
#endif
PA_ALSA_PATHS_DIR);
r = pa_config_parse(fn, NULL, items, p);
pa_xfree(fn);
if (r < 0)
goto fail;
if (path_verify(p) < 0)
goto fail;
return p;
fail:
pa_alsa_path_free(p);
return NULL;
}
pa_alsa_path* pa_alsa_path_synthesize(const char*element, pa_alsa_direction_t direction) {
pa_alsa_path *p;
pa_alsa_element *e;
pa_assert(element);
p = pa_xnew0(pa_alsa_path, 1);
p->name = pa_xstrdup(element);
p->direction = direction;
e = pa_xnew0(pa_alsa_element, 1);
e->path = p;
e->alsa_name = pa_xstrdup(element);
e->direction = direction;
e->switch_use = PA_ALSA_SWITCH_MUTE;
e->volume_use = PA_ALSA_VOLUME_MERGE;
PA_LLIST_PREPEND(pa_alsa_element, p->elements, e);
return p;
}
static pa_bool_t element_drop_unsupported(pa_alsa_element *e) {
pa_alsa_option *o, *n;
pa_assert(e);
for (o = e->options; o; o = n) {
n = o->next;
if (o->alsa_idx < 0) {
PA_LLIST_REMOVE(pa_alsa_option, e->options, o);
option_free(o);
}
}
return
e->switch_use != PA_ALSA_SWITCH_IGNORE ||
e->volume_use != PA_ALSA_VOLUME_IGNORE ||
e->enumeration_use != PA_ALSA_ENUMERATION_IGNORE;
}
static void path_drop_unsupported(pa_alsa_path *p) {
pa_alsa_element *e, *n;
pa_assert(p);
for (e = p->elements; e; e = n) {
n = e->next;
if (!element_drop_unsupported(e)) {
PA_LLIST_REMOVE(pa_alsa_element, p->elements, e);
element_free(e);
}
}
}
static void path_make_options_unique(pa_alsa_path *p) {
pa_alsa_element *e;
pa_alsa_option *o, *u;
PA_LLIST_FOREACH(e, p->elements) {
PA_LLIST_FOREACH(o, e->options) {
unsigned i;
char *m;
for (u = o->next; u; u = u->next)
if (pa_streq(u->name, o->name))
break;
if (!u)
continue;
m = pa_xstrdup(o->name);
/* OK, this name is not unique, hence let's rename */
for (i = 1, u = o; u; u = u->next) {
char *nn, *nd;
if (!pa_streq(u->name, m))
continue;
nn = pa_sprintf_malloc("%s-%u", m, i);
pa_xfree(u->name);
u->name = nn;
nd = pa_sprintf_malloc("%s %u", u->description, i);
pa_xfree(u->description);
u->description = nd;
i++;
}
pa_xfree(m);
}
}
}
static pa_bool_t element_create_settings(pa_alsa_element *e, pa_alsa_setting *template) {
pa_alsa_option *o;
for (; e; e = e->next)
if (e->switch_use == PA_ALSA_SWITCH_SELECT ||
e->enumeration_use == PA_ALSA_ENUMERATION_SELECT)
break;
if (!e)
return FALSE;
for (o = e->options; o; o = o->next) {
pa_alsa_setting *s;
if (template) {
s = pa_xnewdup(pa_alsa_setting, template, 1);
s->options = pa_idxset_copy(template->options);
s->name = pa_sprintf_malloc(_("%s+%s"), template->name, o->name);
s->description =
(template->description[0] && o->description[0])
? pa_sprintf_malloc(_("%s / %s"), template->description, o->description)
: (template->description[0]
? pa_xstrdup(template->description)
: pa_xstrdup(o->description));
s->priority = PA_MAX(template->priority, o->priority);
} else {
s = pa_xnew0(pa_alsa_setting, 1);
s->options = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
s->name = pa_xstrdup(o->name);
s->description = pa_xstrdup(o->description);
s->priority = o->priority;
}
pa_idxset_put(s->options, o, NULL);
if (element_create_settings(e->next, s))
/* This is not a leaf, so let's get rid of it */
setting_free(s);
else {
/* This is a leaf, so let's add it */
PA_LLIST_INSERT_AFTER(pa_alsa_setting, e->path->settings, e->path->last_setting, s);
e->path->last_setting = s;
}
}
return TRUE;
}
static void path_create_settings(pa_alsa_path *p) {
pa_assert(p);
element_create_settings(p->elements, NULL);
}
int pa_alsa_path_probe(pa_alsa_path *p, snd_mixer_t *m, pa_bool_t ignore_dB) {
pa_alsa_element *e;
double min_dB[PA_CHANNEL_POSITION_MAX], max_dB[PA_CHANNEL_POSITION_MAX];
pa_channel_position_t t;
pa_assert(p);
pa_assert(m);
if (p->probed)
return 0;
pa_zero(min_dB);
pa_zero(max_dB);
pa_log_debug("Probing path '%s'", p->name);
PA_LLIST_FOREACH(e, p->elements) {
if (element_probe(e, m) < 0) {
p->supported = FALSE;
pa_log_debug("Probe of element '%s' failed.", e->alsa_name);
return -1;
}
if (ignore_dB)
e->has_dB = FALSE;
if (e->volume_use == PA_ALSA_VOLUME_MERGE) {
if (!p->has_volume) {
p->min_volume = e->min_volume;
p->max_volume = e->max_volume;
}
if (e->has_dB) {
if (!p->has_volume) {
for (t = 0; t < PA_CHANNEL_POSITION_MAX; t++)
if (PA_CHANNEL_POSITION_MASK(t) & e->merged_mask) {
min_dB[t] = e->min_dB;
max_dB[t] = e->max_dB;
}
p->has_dB = TRUE;
} else {
if (p->has_dB) {
for (t = 0; t < PA_CHANNEL_POSITION_MAX; t++)
if (PA_CHANNEL_POSITION_MASK(t) & e->merged_mask) {
min_dB[t] += e->min_dB;
max_dB[t] += e->max_dB;
}
} else
/* Hmm, there's another element before us
* which cannot do dB volumes, so we we need
* to 'neutralize' this slider */
e->volume_use = PA_ALSA_VOLUME_ZERO;
}
} else if (p->has_volume)
/* We can't use this volume, so let's ignore it */
e->volume_use = PA_ALSA_VOLUME_IGNORE;
p->has_volume = TRUE;
}
if (e->switch_use == PA_ALSA_SWITCH_MUTE)
p->has_mute = TRUE;
}
path_drop_unsupported(p);
path_make_options_unique(p);
path_create_settings(p);
p->supported = TRUE;
p->probed = TRUE;
p->min_dB = INFINITY;
p->max_dB = -INFINITY;
for (t = 0; t < PA_CHANNEL_POSITION_MAX; t++) {
if (p->min_dB > min_dB[t])
p->min_dB = min_dB[t];
if (p->max_dB < max_dB[t])
p->max_dB = max_dB[t];
}
return 0;
}
void pa_alsa_setting_dump(pa_alsa_setting *s) {
pa_assert(s);
pa_log_debug("Setting %s (%s) priority=%u",
s->name,
pa_strnull(s->description),
s->priority);
}
void pa_alsa_option_dump(pa_alsa_option *o) {
pa_assert(o);
pa_log_debug("Option %s (%s/%s) index=%i, priority=%u",
o->alsa_name,
pa_strnull(o->name),
pa_strnull(o->description),
o->alsa_idx,
o->priority);
}
void pa_alsa_element_dump(pa_alsa_element *e) {
pa_alsa_option *o;
pa_assert(e);
pa_log_debug("Element %s, direction=%i, switch=%i, volume=%i, enumeration=%i, required=%i, required_absent=%i, mask=0x%llx, n_channels=%u, override_map=%s",
e->alsa_name,
e->direction,
e->switch_use,
e->volume_use,
e->enumeration_use,
e->required,
e->required_absent,
(long long unsigned) e->merged_mask,
e->n_channels,
pa_yes_no(e->override_map));
PA_LLIST_FOREACH(o, e->options)
pa_alsa_option_dump(o);
}
void pa_alsa_path_dump(pa_alsa_path *p) {
pa_alsa_element *e;
pa_alsa_setting *s;
pa_assert(p);
pa_log_debug("Path %s (%s), direction=%i, priority=%u, probed=%s, supported=%s, has_mute=%s, has_volume=%s, "
"has_dB=%s, min_volume=%li, max_volume=%li, min_dB=%g, max_dB=%g",
p->name,
pa_strnull(p->description),
p->direction,
p->priority,
pa_yes_no(p->probed),
pa_yes_no(p->supported),
pa_yes_no(p->has_mute),
pa_yes_no(p->has_volume),
pa_yes_no(p->has_dB),
p->min_volume, p->max_volume,
p->min_dB, p->max_dB);
PA_LLIST_FOREACH(e, p->elements)
pa_alsa_element_dump(e);
PA_LLIST_FOREACH(s, p->settings)
pa_alsa_setting_dump(s);
}
static void element_set_callback(pa_alsa_element *e, snd_mixer_t *m, snd_mixer_elem_callback_t cb, void *userdata) {
snd_mixer_selem_id_t *sid;
snd_mixer_elem_t *me;
pa_assert(e);
pa_assert(m);
pa_assert(cb);
SELEM_INIT(sid, e->alsa_name);
if (!(me = snd_mixer_find_selem(m, sid))) {
pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
return;
}
snd_mixer_elem_set_callback(me, cb);
snd_mixer_elem_set_callback_private(me, userdata);
}
void pa_alsa_path_set_callback(pa_alsa_path *p, snd_mixer_t *m, snd_mixer_elem_callback_t cb, void *userdata) {
pa_alsa_element *e;
pa_assert(p);
pa_assert(m);
pa_assert(cb);
PA_LLIST_FOREACH(e, p->elements)
element_set_callback(e, m, cb, userdata);
}
void pa_alsa_path_set_set_callback(pa_alsa_path_set *ps, snd_mixer_t *m, snd_mixer_elem_callback_t cb, void *userdata) {
pa_alsa_path *p;
pa_assert(ps);
pa_assert(m);
pa_assert(cb);
PA_LLIST_FOREACH(p, ps->paths)
pa_alsa_path_set_callback(p, m, cb, userdata);
}
pa_alsa_path_set *pa_alsa_path_set_new(pa_alsa_mapping *m, pa_alsa_direction_t direction) {
pa_alsa_path_set *ps;
char **pn = NULL, **en = NULL, **ie;
pa_assert(m);
pa_assert(direction == PA_ALSA_DIRECTION_OUTPUT || direction == PA_ALSA_DIRECTION_INPUT);
if (m->direction != PA_ALSA_DIRECTION_ANY && m->direction != direction)
return NULL;
ps = pa_xnew0(pa_alsa_path_set, 1);
ps->direction = direction;
if (direction == PA_ALSA_DIRECTION_OUTPUT)
pn = m->output_path_names;
else if (direction == PA_ALSA_DIRECTION_INPUT)
pn = m->input_path_names;
if (pn) {
char **in;
for (in = pn; *in; in++) {
pa_alsa_path *p;
pa_bool_t duplicate = FALSE;
char **kn, *fn;
for (kn = pn; kn != in; kn++)
if (pa_streq(*kn, *in)) {
duplicate = TRUE;
break;
}
if (duplicate)
continue;
fn = pa_sprintf_malloc("%s.conf", *in);
if ((p = pa_alsa_path_new(fn, direction))) {
p->path_set = ps;
PA_LLIST_INSERT_AFTER(pa_alsa_path, ps->paths, ps->last_path, p);
ps->last_path = p;
}
pa_xfree(fn);
}
return ps;
}
if (direction == PA_ALSA_DIRECTION_OUTPUT)
en = m->output_element;
else if (direction == PA_ALSA_DIRECTION_INPUT)
en = m->input_element;
if (!en) {
pa_alsa_path_set_free(ps);
return NULL;
}
for (ie = en; *ie; ie++) {
char **je;
pa_alsa_path *p;
p = pa_alsa_path_synthesize(*ie, direction);
p->path_set = ps;
/* Mark all other passed elements for require-absent */
for (je = en; *je; je++) {
pa_alsa_element *e;
e = pa_xnew0(pa_alsa_element, 1);
e->path = p;
e->alsa_name = pa_xstrdup(*je);
e->direction = direction;
e->required_absent = PA_ALSA_REQUIRED_ANY;
PA_LLIST_INSERT_AFTER(pa_alsa_element, p->elements, p->last_element, e);
p->last_element = e;
}
PA_LLIST_INSERT_AFTER(pa_alsa_path, ps->paths, ps->last_path, p);
ps->last_path = p;
}
return ps;
}
void pa_alsa_path_set_dump(pa_alsa_path_set *ps) {
pa_alsa_path *p;
pa_assert(ps);
pa_log_debug("Path Set %p, direction=%i, probed=%s",
(void*) ps,
ps->direction,
pa_yes_no(ps->probed));
PA_LLIST_FOREACH(p, ps->paths)
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. */
PA_LLIST_FOREACH(p, ps->paths) {
pa_assert(p->probed);
if (!p->has_volume)
has_volume = FALSE;
else if (!p->has_dB)
has_dB = FALSE;
if (!p->has_mute)
has_mute = FALSE;
}
if (!has_volume || !has_dB || !has_mute) {
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.");
if (!has_mute)
pa_log_debug("Some paths of the device lack hardware mute control, disabling hardware control altogether.");
PA_LLIST_FOREACH(p, ps->paths) {
if (!has_volume)
p->has_volume = FALSE;
else if (!has_dB)
p->has_dB = FALSE;
if (!has_mute)
p->has_mute = FALSE;
}
}
}
static void path_set_make_paths_unique(pa_alsa_path_set *ps) {
pa_alsa_path *p, *q;
PA_LLIST_FOREACH(p, ps->paths) {
unsigned i;
char *m;
for (q = p->next; q; q = q->next)
if (pa_streq(q->name, p->name))
break;
if (!q)
continue;
m = pa_xstrdup(p->name);
/* OK, this name is not unique, hence let's rename */
for (i = 1, q = p; q; q = q->next) {
char *nn, *nd;
if (!pa_streq(q->name, m))
continue;
nn = pa_sprintf_malloc("%s-%u", m, i);
pa_xfree(q->name);
q->name = nn;
nd = pa_sprintf_malloc("%s %u", q->description, i);
pa_xfree(q->description);
q->description = nd;
i++;
}
pa_xfree(m);
}
}
void pa_alsa_path_set_probe(pa_alsa_path_set *ps, snd_mixer_t *m, pa_bool_t ignore_dB) {
pa_alsa_path *p, *n;
pa_assert(ps);
if (ps->probed)
return;
for (p = ps->paths; p; p = n) {
n = p->next;
if (pa_alsa_path_probe(p, m, ignore_dB) < 0) {
PA_LLIST_REMOVE(pa_alsa_path, ps->paths, p);
pa_alsa_path_free(p);
}
}
path_set_unify(ps);
path_set_make_paths_unique(ps);
ps->probed = TRUE;
}
static void mapping_free(pa_alsa_mapping *m) {
pa_assert(m);
pa_xfree(m->name);
pa_xfree(m->description);
pa_xstrfreev(m->device_strings);
pa_xstrfreev(m->input_path_names);
pa_xstrfreev(m->output_path_names);
pa_xstrfreev(m->input_element);
pa_xstrfreev(m->output_element);
pa_assert(!m->input_pcm);
pa_assert(!m->output_pcm);
pa_xfree(m);
}
static void profile_free(pa_alsa_profile *p) {
pa_assert(p);
pa_xfree(p->name);
pa_xfree(p->description);
pa_xstrfreev(p->input_mapping_names);
pa_xstrfreev(p->output_mapping_names);
if (p->input_mappings)
pa_idxset_free(p->input_mappings, NULL, NULL);
if (p->output_mappings)
pa_idxset_free(p->output_mappings, NULL, NULL);
pa_xfree(p);
}
void pa_alsa_profile_set_free(pa_alsa_profile_set *ps) {
pa_assert(ps);
if (ps->profiles) {
pa_alsa_profile *p;
while ((p = pa_hashmap_steal_first(ps->profiles)))
profile_free(p);
pa_hashmap_free(ps->profiles, NULL, NULL);
}
if (ps->mappings) {
pa_alsa_mapping *m;
while ((m = pa_hashmap_steal_first(ps->mappings)))
mapping_free(m);
pa_hashmap_free(ps->mappings, NULL, NULL);
}
pa_xfree(ps);
}
static pa_alsa_mapping *mapping_get(pa_alsa_profile_set *ps, const char *name) {
pa_alsa_mapping *m;
if (!pa_startswith(name, "Mapping "))
return NULL;
name += 8;
if ((m = pa_hashmap_get(ps->mappings, name)))
return m;
m = pa_xnew0(pa_alsa_mapping, 1);
m->profile_set = ps;
m->name = pa_xstrdup(name);
pa_channel_map_init(&m->channel_map);
pa_hashmap_put(ps->mappings, m->name, m);
return m;
}
static pa_alsa_profile *profile_get(pa_alsa_profile_set *ps, const char *name) {
pa_alsa_profile *p;
if (!pa_startswith(name, "Profile "))
return NULL;
name += 8;
if ((p = pa_hashmap_get(ps->profiles, name)))
return p;
p = pa_xnew0(pa_alsa_profile, 1);
p->profile_set = ps;
p->name = pa_xstrdup(name);
pa_hashmap_put(ps->profiles, p->name, p);
return p;
}
static int mapping_parse_device_strings(
const char *filename,
unsigned line,
const char *section,
const char *lvalue,
const char *rvalue,
void *data,
void *userdata) {
pa_alsa_profile_set *ps = userdata;
pa_alsa_mapping *m;
pa_assert(ps);
if (!(m = mapping_get(ps, section))) {
pa_log("[%s:%u] %s invalid in section %s", filename, line, lvalue, section);
return -1;
}
pa_xstrfreev(m->device_strings);
if (!(m->device_strings = pa_split_spaces_strv(rvalue))) {
pa_log("[%s:%u] Device string list empty of '%s'", filename, line, section);
return -1;
}
return 0;
}
static int mapping_parse_channel_map(
const char *filename,
unsigned line,
const char *section,
const char *lvalue,
const char *rvalue,
void *data,
void *userdata) {
pa_alsa_profile_set *ps = userdata;
pa_alsa_mapping *m;
pa_assert(ps);
if (!(m = mapping_get(ps, section))) {
pa_log("[%s:%u] %s invalid in section %s", filename, line, lvalue, section);
return -1;
}
if (!(pa_channel_map_parse(&m->channel_map, rvalue))) {
pa_log("[%s:%u] Channel map invalid of '%s'", filename, line, section);
return -1;
}
return 0;
}
static int mapping_parse_paths(
const char *filename,
unsigned line,
const char *section,
const char *lvalue,
const char *rvalue,
void *data,
void *userdata) {
pa_alsa_profile_set *ps = userdata;
pa_alsa_mapping *m;
pa_assert(ps);
if (!(m = mapping_get(ps, section))) {
pa_log("[%s:%u] %s invalid in section %s", filename, line, lvalue, section);
return -1;
}
if (pa_streq(lvalue, "paths-input")) {
pa_xstrfreev(m->input_path_names);
m->input_path_names = pa_split_spaces_strv(rvalue);
} else {
pa_xstrfreev(m->output_path_names);
m->output_path_names = pa_split_spaces_strv(rvalue);
}
return 0;
}
static int mapping_parse_element(
const char *filename,
unsigned line,
const char *section,
const char *lvalue,
const char *rvalue,
void *data,
void *userdata) {
pa_alsa_profile_set *ps = userdata;
pa_alsa_mapping *m;
pa_assert(ps);
if (!(m = mapping_get(ps, section))) {
pa_log("[%s:%u] %s invalid in section %s", filename, line, lvalue, section);
return -1;
}
if (pa_streq(lvalue, "element-input")) {
pa_xstrfreev(m->input_element);
m->input_element = pa_split_spaces_strv(rvalue);
} else {
pa_xstrfreev(m->output_element);
m->output_element = pa_split_spaces_strv(rvalue);
}
return 0;
}
static int mapping_parse_direction(
const char *filename,
unsigned line,
const char *section,
const char *lvalue,
const char *rvalue,
void *data,
void *userdata) {
pa_alsa_profile_set *ps = userdata;
pa_alsa_mapping *m;
pa_assert(ps);
if (!(m = mapping_get(ps, section))) {
pa_log("[%s:%u] Section name %s invalid.", filename, line, section);
return -1;
}
if (pa_streq(rvalue, "input"))
m->direction = PA_ALSA_DIRECTION_INPUT;
else if (pa_streq(rvalue, "output"))
m->direction = PA_ALSA_DIRECTION_OUTPUT;
else if (pa_streq(rvalue, "any"))
m->direction = PA_ALSA_DIRECTION_ANY;
else {
pa_log("[%s:%u] Direction %s invalid.", filename, line, rvalue);
return -1;
}
return 0;
}
static int mapping_parse_description(
const char *filename,
unsigned line,
const char *section,
const char *lvalue,
const char *rvalue,
void *data,
void *userdata) {
pa_alsa_profile_set *ps = userdata;
pa_alsa_profile *p;
pa_alsa_mapping *m;
pa_assert(ps);
if ((m = mapping_get(ps, section))) {
pa_xfree(m->description);
m->description = pa_xstrdup(rvalue);
} else if ((p = profile_get(ps, section))) {
pa_xfree(p->description);
p->description = pa_xstrdup(rvalue);
} else {
pa_log("[%s:%u] Section name %s invalid.", filename, line, section);
return -1;
}
return 0;
}
static int mapping_parse_priority(
const char *filename,
unsigned line,
const char *section,
const char *lvalue,
const char *rvalue,
void *data,
void *userdata) {
pa_alsa_profile_set *ps = userdata;
pa_alsa_profile *p;
pa_alsa_mapping *m;
uint32_t prio;
pa_assert(ps);
if (pa_atou(rvalue, &prio) < 0) {
pa_log("[%s:%u] Priority invalid of '%s'", filename, line, section);
return -1;
}
if ((m = mapping_get(ps, section)))
m->priority = prio;
else if ((p = profile_get(ps, section)))
p->priority = prio;
else {
pa_log("[%s:%u] Section name %s invalid.", filename, line, section);
return -1;
}
return 0;
}
static int profile_parse_mappings(
const char *filename,
unsigned line,
const char *section,
const char *lvalue,
const char *rvalue,
void *data,
void *userdata) {
pa_alsa_profile_set *ps = userdata;
pa_alsa_profile *p;
pa_assert(ps);
if (!(p = profile_get(ps, section))) {
pa_log("[%s:%u] %s invalid in section %s", filename, line, lvalue, section);
return -1;
}
if (pa_streq(lvalue, "input-mappings")) {
pa_xstrfreev(p->input_mapping_names);
p->input_mapping_names = pa_split_spaces_strv(rvalue);
} else {
pa_xstrfreev(p->output_mapping_names);
p->output_mapping_names = pa_split_spaces_strv(rvalue);
}
return 0;
}
static int profile_parse_skip_probe(
const char *filename,
unsigned line,
const char *section,
const char *lvalue,
const char *rvalue,
void *data,
void *userdata) {
pa_alsa_profile_set *ps = userdata;
pa_alsa_profile *p;
int b;
pa_assert(ps);
if (!(p = profile_get(ps, section))) {
pa_log("[%s:%u] %s invalid in section %s", filename, line, lvalue, section);
return -1;
}
if ((b = pa_parse_boolean(rvalue)) < 0) {
pa_log("[%s:%u] Skip probe invalid of '%s'", filename, line, section);
return -1;
}
p->supported = b;
return 0;
}
static int mapping_verify(pa_alsa_mapping *m, const pa_channel_map *bonus) {
static const struct description_map well_known_descriptions[] = {
{ "analog-mono", N_("Analog Mono") },
{ "analog-stereo", N_("Analog Stereo") },
{ "analog-surround-21", N_("Analog Surround 2.1") },
{ "analog-surround-30", N_("Analog Surround 3.0") },
{ "analog-surround-31", N_("Analog Surround 3.1") },
{ "analog-surround-40", N_("Analog Surround 4.0") },
{ "analog-surround-41", N_("Analog Surround 4.1") },
{ "analog-surround-50", N_("Analog Surround 5.0") },
{ "analog-surround-51", N_("Analog Surround 5.1") },
{ "analog-surround-61", N_("Analog Surround 6.0") },
{ "analog-surround-61", N_("Analog Surround 6.1") },
{ "analog-surround-70", N_("Analog Surround 7.0") },
{ "analog-surround-71", N_("Analog Surround 7.1") },
{ "iec958-stereo", N_("Digital Stereo (IEC958)") },
{ "iec958-passthrough", N_("Digital Passthrough (IEC958)") },
{ "iec958-ac3-surround-40", N_("Digital Surround 4.0 (IEC958/AC3)") },
{ "iec958-ac3-surround-51", N_("Digital Surround 5.1 (IEC958/AC3)") },
{ "hdmi-stereo", N_("Digital Stereo (HDMI)") }
};
pa_assert(m);
if (!pa_channel_map_valid(&m->channel_map)) {
pa_log("Mapping %s is missing channel map.", m->name);
return -1;
}
if (!m->device_strings) {
pa_log("Mapping %s is missing device strings.", m->name);
return -1;
}
if ((m->input_path_names && m->input_element) ||
(m->output_path_names && m->output_element)) {
pa_log("Mapping %s must have either mixer path or mixer elment, not both.", m->name);
return -1;
}
if (!m->description)
m->description = pa_xstrdup(lookup_description(m->name,
well_known_descriptions,
PA_ELEMENTSOF(well_known_descriptions)));
if (!m->description)
m->description = pa_xstrdup(m->name);
if (bonus) {
if (pa_channel_map_equal(&m->channel_map, bonus))
m->priority += 50;
else if (m->channel_map.channels == bonus->channels)
m->priority += 30;
}
return 0;
}
void pa_alsa_mapping_dump(pa_alsa_mapping *m) {
char cm[PA_CHANNEL_MAP_SNPRINT_MAX];
pa_assert(m);
pa_log_debug("Mapping %s (%s), priority=%u, channel_map=%s, supported=%s, direction=%i",
m->name,
pa_strnull(m->description),
m->priority,
pa_channel_map_snprint(cm, sizeof(cm), &m->channel_map),
pa_yes_no(m->supported),
m->direction);
}
static void profile_set_add_auto_pair(
pa_alsa_profile_set *ps,
pa_alsa_mapping *m, /* output */
pa_alsa_mapping *n /* input */) {
char *name;
pa_alsa_profile *p;
pa_assert(ps);
pa_assert(m || n);
if (m && m->direction == PA_ALSA_DIRECTION_INPUT)
return;
if (n && n->direction == PA_ALSA_DIRECTION_OUTPUT)
return;
if (m && n)
name = pa_sprintf_malloc("output:%s+input:%s", m->name, n->name);
else if (m)
name = pa_sprintf_malloc("output:%s", m->name);
else
name = pa_sprintf_malloc("input:%s", n->name);
if (pa_hashmap_get(ps->profiles, name)) {
pa_xfree(name);
return;
}
p = pa_xnew0(pa_alsa_profile, 1);
p->profile_set = ps;
p->name = name;
if (m) {
p->output_mappings = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
pa_idxset_put(p->output_mappings, m, NULL);
p->priority += m->priority * 100;
}
if (n) {
p->input_mappings = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
pa_idxset_put(p->input_mappings, n, NULL);
p->priority += n->priority;
}
pa_hashmap_put(ps->profiles, p->name, p);
}
static void profile_set_add_auto(pa_alsa_profile_set *ps) {
pa_alsa_mapping *m, *n;
void *m_state, *n_state;
pa_assert(ps);
PA_HASHMAP_FOREACH(m, ps->mappings, m_state) {
profile_set_add_auto_pair(ps, m, NULL);
PA_HASHMAP_FOREACH(n, ps->mappings, n_state)
profile_set_add_auto_pair(ps, m, n);
}
PA_HASHMAP_FOREACH(n, ps->mappings, n_state)
profile_set_add_auto_pair(ps, NULL, n);
}
static int profile_verify(pa_alsa_profile *p) {
static const struct description_map well_known_descriptions[] = {
{ "output:analog-mono+input:analog-mono", N_("Analog Mono Duplex") },
{ "output:analog-stereo+input:analog-stereo", N_("Analog Stereo Duplex") },
{ "output:iec958-stereo+input:iec958-stereo", N_("Digital Stereo Duplex (IEC958)") },
{ "off", N_("Off") }
};
pa_assert(p);
/* Replace the output mapping names by the actual mappings */
if (p->output_mapping_names) {
char **name;
pa_assert(!p->output_mappings);
p->output_mappings = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
for (name = p->output_mapping_names; *name; name++) {
pa_alsa_mapping *m;
char **in;
pa_bool_t duplicate = FALSE;
for (in = name + 1; *in; in++)
if (pa_streq(*name, *in)) {
duplicate = TRUE;
break;
}
if (duplicate)
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);
return -1;
}
pa_idxset_put(p->output_mappings, m, NULL);
if (p->supported)
m->supported++;
}
pa_xstrfreev(p->output_mapping_names);
p->output_mapping_names = NULL;
}
/* Replace the input mapping names by the actual mappings */
if (p->input_mapping_names) {
char **name;
pa_assert(!p->input_mappings);
p->input_mappings = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
for (name = p->input_mapping_names; *name; name++) {
pa_alsa_mapping *m;
char **in;
pa_bool_t duplicate = FALSE;
for (in = name + 1; *in; in++)
if (pa_streq(*name, *in)) {
duplicate = TRUE;
break;
}
if (duplicate)
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);
return -1;
}
pa_idxset_put(p->input_mappings, m, NULL);
if (p->supported)
m->supported++;
}
pa_xstrfreev(p->input_mapping_names);
p->input_mapping_names = NULL;
}
if (!p->input_mappings && !p->output_mappings) {
pa_log("Profile '%s' lacks mappings.", p->name);
return -1;
}
if (!p->description)
p->description = pa_xstrdup(lookup_description(p->name,
well_known_descriptions,
PA_ELEMENTSOF(well_known_descriptions)));
if (!p->description) {
pa_strbuf *sb;
uint32_t idx;
pa_alsa_mapping *m;
sb = pa_strbuf_new();
if (p->output_mappings)
PA_IDXSET_FOREACH(m, p->output_mappings, idx) {
if (!pa_strbuf_isempty(sb))
pa_strbuf_puts(sb, " + ");
pa_strbuf_printf(sb, "%s Output", m->description);
}
if (p->input_mappings)
PA_IDXSET_FOREACH(m, p->input_mappings, idx) {
if (!pa_strbuf_isempty(sb))
pa_strbuf_puts(sb, " + ");
pa_strbuf_printf(sb, "%s Input", m->description);
}
p->description = pa_strbuf_tostring_free(sb);
}
return 0;
}
void pa_alsa_profile_dump(pa_alsa_profile *p) {
uint32_t idx;
pa_alsa_mapping *m;
pa_assert(p);
pa_log_debug("Profile %s (%s), priority=%u, supported=%s n_input_mappings=%u, n_output_mappings=%u",
p->name,
pa_strnull(p->description),
p->priority,
pa_yes_no(p->supported),
p->input_mappings ? pa_idxset_size(p->input_mappings) : 0,
p->output_mappings ? pa_idxset_size(p->output_mappings) : 0);
if (p->input_mappings)
PA_IDXSET_FOREACH(m, p->input_mappings, idx)
pa_log_debug("Input %s", m->name);
if (p->output_mappings)
PA_IDXSET_FOREACH(m, p->output_mappings, idx)
pa_log_debug("Output %s", m->name);
}
pa_alsa_profile_set* pa_alsa_profile_set_new(const char *fname, const pa_channel_map *bonus) {
pa_alsa_profile_set *ps;
pa_alsa_profile *p;
pa_alsa_mapping *m;
char *fn;
int r;
void *state;
static pa_config_item items[] = {
/* [General] */
{ "auto-profiles", pa_config_parse_bool, NULL, "General" },
/* [Mapping ...] */
{ "device-strings", mapping_parse_device_strings, NULL, NULL },
{ "channel-map", mapping_parse_channel_map, NULL, NULL },
{ "paths-input", mapping_parse_paths, NULL, NULL },
{ "paths-output", mapping_parse_paths, NULL, NULL },
{ "element-input", mapping_parse_element, NULL, NULL },
{ "element-output", mapping_parse_element, NULL, NULL },
{ "direction", mapping_parse_direction, NULL, NULL },
/* Shared by [Mapping ...] and [Profile ...] */
{ "description", mapping_parse_description, NULL, NULL },
{ "priority", mapping_parse_priority, NULL, NULL },
/* [Profile ...] */
{ "input-mappings", profile_parse_mappings, NULL, NULL },
{ "output-mappings", profile_parse_mappings, NULL, NULL },
{ "skip-probe", profile_parse_skip_probe, NULL, NULL },
{ NULL, NULL, NULL, NULL }
};
ps = pa_xnew0(pa_alsa_profile_set, 1);
ps->mappings = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
ps->profiles = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
items[0].data = &ps->auto_profiles;
if (!fname)
fname = "default.conf";
fn = pa_maybe_prefix_path(fname,
#if defined(__linux__) && !defined(__OPTIMIZE__)
pa_run_from_build_tree() ? PA_BUILDDIR "/modules/alsa/mixer/profile-sets/" :
#endif
PA_ALSA_PROFILE_SETS_DIR);
r = pa_config_parse(fn, NULL, items, ps);
pa_xfree(fn);
if (r < 0)
goto fail;
PA_HASHMAP_FOREACH(m, ps->mappings, state)
if (mapping_verify(m, bonus) < 0)
goto fail;
if (ps->auto_profiles)
profile_set_add_auto(ps);
PA_HASHMAP_FOREACH(p, ps->profiles, state)
if (profile_verify(p) < 0)
goto fail;
return ps;
fail:
pa_alsa_profile_set_free(ps);
return NULL;
}
void pa_alsa_profile_set_probe(
pa_alsa_profile_set *ps,
const char *dev_id,
const pa_sample_spec *ss,
unsigned default_n_fragments,
unsigned default_fragment_size_msec) {
void *state;
pa_alsa_profile *p, *last = NULL;
pa_alsa_mapping *m;
pa_assert(ps);
pa_assert(dev_id);
pa_assert(ss);
if (ps->probed)
return;
PA_HASHMAP_FOREACH(p, ps->profiles, state) {
pa_sample_spec try_ss;
pa_channel_map try_map;
snd_pcm_uframes_t try_period_size, try_buffer_size;
uint32_t idx;
/* Is this already marked that it is supported? (i.e. from the config file) */
if (p->supported)
continue;
pa_log_debug("Looking at profile %s", p->name);
/* Close PCMs from the last iteration we don't need anymore */
if (last && last->output_mappings)
PA_IDXSET_FOREACH(m, last->output_mappings, idx) {
if (!m->output_pcm)
break;
if (last->supported)
m->supported++;
if (!p->output_mappings || !pa_idxset_get_by_data(p->output_mappings, m, NULL)) {
snd_pcm_close(m->output_pcm);
m->output_pcm = NULL;
}
}
if (last && last->input_mappings)
PA_IDXSET_FOREACH(m, last->input_mappings, idx) {
if (!m->input_pcm)
break;
if (last->supported)
m->supported++;
if (!p->input_mappings || !pa_idxset_get_by_data(p->input_mappings, m, NULL)) {
snd_pcm_close(m->input_pcm);
m->input_pcm = NULL;
}
}
p->supported = TRUE;
/* Check if we can open all new ones */
if (p->output_mappings)
PA_IDXSET_FOREACH(m, p->output_mappings, idx) {
if (m->output_pcm)
continue;
pa_log_debug("Checking for playback on %s (%s)", m->description, m->name);
try_map = m->channel_map;
try_ss = *ss;
try_ss.channels = try_map.channels;
try_period_size =
pa_usec_to_bytes(default_fragment_size_msec * PA_USEC_PER_MSEC, &try_ss) /
pa_frame_size(&try_ss);
try_buffer_size = default_n_fragments * try_period_size;
if (!(m ->output_pcm = pa_alsa_open_by_template(
m->device_strings,
dev_id,
NULL,
&try_ss, &try_map,
SND_PCM_STREAM_PLAYBACK,
&try_period_size, &try_buffer_size, 0, NULL, NULL,
TRUE))) {
p->supported = FALSE;
break;
}
}
if (p->input_mappings && p->supported)
PA_IDXSET_FOREACH(m, p->input_mappings, idx) {
if (m->input_pcm)
continue;
pa_log_debug("Checking for recording on %s (%s)", m->description, m->name);
try_map = m->channel_map;
try_ss = *ss;
try_ss.channels = try_map.channels;
try_period_size =
pa_usec_to_bytes(default_fragment_size_msec*PA_USEC_PER_MSEC, &try_ss) /
pa_frame_size(&try_ss);
try_buffer_size = default_n_fragments * try_period_size;
if (!(m ->input_pcm = pa_alsa_open_by_template(
m->device_strings,
dev_id,
NULL,
&try_ss, &try_map,
SND_PCM_STREAM_CAPTURE,
&try_period_size, &try_buffer_size, 0, NULL, NULL,
TRUE))) {
p->supported = FALSE;
break;
}
}
last = p;
if (p->supported)
pa_log_debug("Profile %s supported.", p->name);
}
/* Clean up */
if (last) {
uint32_t idx;
if (last->output_mappings)
PA_IDXSET_FOREACH(m, last->output_mappings, idx)
if (m->output_pcm) {
if (last->supported)
m->supported++;
snd_pcm_close(m->output_pcm);
m->output_pcm = NULL;
}
if (last->input_mappings)
PA_IDXSET_FOREACH(m, last->input_mappings, idx)
if (m->input_pcm) {
if (last->supported)
m->supported++;
snd_pcm_close(m->input_pcm);
m->input_pcm = NULL;
}
}
PA_HASHMAP_FOREACH(p, ps->profiles, state)
if (!p->supported) {
pa_hashmap_remove(ps->profiles, p->name);
profile_free(p);
}
PA_HASHMAP_FOREACH(m, ps->mappings, state)
if (m->supported <= 0) {
pa_hashmap_remove(ps->mappings, m->name);
mapping_free(m);
}
ps->probed = TRUE;
}
void pa_alsa_profile_set_dump(pa_alsa_profile_set *ps) {
pa_alsa_profile *p;
pa_alsa_mapping *m;
void *state;
pa_assert(ps);
pa_log_debug("Profile set %p, auto_profiles=%s, probed=%s, n_mappings=%u, n_profiles=%u",
(void*)
ps,
pa_yes_no(ps->auto_profiles),
pa_yes_no(ps->probed),
pa_hashmap_size(ps->mappings),
pa_hashmap_size(ps->profiles));
PA_HASHMAP_FOREACH(m, ps->mappings, state)
pa_alsa_mapping_dump(m);
PA_HASHMAP_FOREACH(p, ps->profiles, state)
pa_alsa_profile_dump(p);
}
void pa_alsa_add_ports(pa_hashmap **p, pa_alsa_path_set *ps) {
pa_alsa_path *path;
pa_assert(p);
pa_assert(!*p);
pa_assert(ps);
/* if there is no path, we don't want a port list */
if (!ps->paths)
return;
if (!ps->paths->next){
pa_alsa_setting *s;
/* If there is only one path, but no or only one setting, then
* we want a port list either */
if (!ps->paths->settings || !ps->paths->settings->next)
return;
/* Ok, there is only one path, however with multiple settings,
* so let's create a port for each setting */
*p = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
PA_LLIST_FOREACH(s, ps->paths->settings) {
pa_device_port *port;
pa_alsa_port_data *data;
port = pa_device_port_new(s->name, s->description, sizeof(pa_alsa_port_data));
port->priority = s->priority;
data = PA_DEVICE_PORT_DATA(port);
data->path = ps->paths;
data->setting = s;
pa_hashmap_put(*p, port->name, port);
}
} else {
/* We have multiple paths, so let's create a port for each
* one, and each of each settings */
*p = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
PA_LLIST_FOREACH(path, ps->paths) {
if (!path->settings || !path->settings->next) {
pa_device_port *port;
pa_alsa_port_data *data;
/* If there is no or just one setting we only need a
* single entry */
port = pa_device_port_new(path->name, path->description, sizeof(pa_alsa_port_data));
port->priority = path->priority * 100;
data = PA_DEVICE_PORT_DATA(port);
data->path = path;
data->setting = path->settings;
pa_hashmap_put(*p, port->name, port);
} else {
pa_alsa_setting *s;
PA_LLIST_FOREACH(s, path->settings) {
pa_device_port *port;
pa_alsa_port_data *data;
char *n, *d;
n = pa_sprintf_malloc("%s;%s", path->name, s->name);
if (s->description[0])
d = pa_sprintf_malloc(_("%s / %s"), path->description, s->description);
else
d = pa_xstrdup(path->description);
port = pa_device_port_new(n, d, sizeof(pa_alsa_port_data));
port->priority = path->priority * 100 + s->priority;
pa_xfree(n);
pa_xfree(d);
data = PA_DEVICE_PORT_DATA(port);
data->path = path;
data->setting = s;
pa_hashmap_put(*p, port->name, port);
}
}
}
}
pa_log_debug("Added %u ports", pa_hashmap_size(*p));
}
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