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Diffstat (limited to 'src/modules/alsa/alsa-mixer.c')
| -rw-r--r-- | src/modules/alsa/alsa-mixer.c | 3406 |
1 files changed, 3406 insertions, 0 deletions
diff --git a/src/modules/alsa/alsa-mixer.c b/src/modules/alsa/alsa-mixer.c new file mode 100644 index 00000000..a5515e1b --- /dev/null +++ b/src/modules/alsa/alsa-mixer.c @@ -0,0 +1,3406 @@ +/*** + 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; +} + +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; + pa_volume_t max_channel_volume = PA_VOLUME_MUTED; + 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); + } + + if (f > max_channel_volume) + max_channel_volume = f; + + 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] = max_channel_volume; + + 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) { + 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; + pa_volume_t max_channel_volume = PA_VOLUME_MUTED; + 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 ((r = snd_mixer_selem_set_playback_dB(me, c, value, +1)) >= 0) + r = snd_mixer_selem_get_playback_dB(me, c, &value); + } else + r = -1; + } else { + if (snd_mixer_selem_has_capture_channel(me, c)) { + if ((r = snd_mixer_selem_set_capture_dB(me, c, value, +1)) >= 0) + 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; + + 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); + } + + if (f > max_channel_volume) + max_channel_volume = f; + + 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] = max_channel_volume; + + *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_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) < 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; + + 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_MUTE: + 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_IGNORE: + case PA_ALSA_SWITCH_SELECT: + r = 0; + break; + } + + if (r < 0) + return -1; + + switch (e->volume_use) { + case PA_ALSA_VOLUME_OFF: + case PA_ALSA_VOLUME_MERGE: + r = element_mute_volume(e, m); + break; + + case PA_ALSA_VOLUME_ZERO: + r = element_zero_volume(e, m); + break; + + 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_VOLUME_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", "" }, + { "input-boost-on", N_("Boost") }, + { "input-boost-off", "" }, + { "output-amplifier-on", N_("Amplifier") }, + { "output-amplifier-off", "" } + }; + + 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") } + }; + + 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, 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_xstrdup(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-surround-40", N_("Digital Surround 4.0 (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 += 5000; + else if (m->channel_map.channels == bonus->channels) + m->priority += 4000; + } + + 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 ((p = 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", 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, 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) { + 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; + 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; + + if (!(m ->output_pcm = pa_alsa_open_by_template( + m->device_strings, + dev_id, + NULL, + &try_ss, &try_map, + SND_PCM_STREAM_PLAYBACK, + NULL, NULL, 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; + + if (!(m ->input_pcm = pa_alsa_open_by_template( + m->device_strings, + dev_id, + NULL, + &try_ss, &try_map, + SND_PCM_STREAM_CAPTURE, + NULL, NULL, 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)); +} |