diff options
Diffstat (limited to '')
| -rw-r--r-- | spa/plugins/alsa/acp/alsa-mixer.c | 5398 |
1 files changed, 5398 insertions, 0 deletions
diff --git a/spa/plugins/alsa/acp/alsa-mixer.c b/spa/plugins/alsa/acp/alsa-mixer.c new file mode 100644 index 0000000..86425fd --- /dev/null +++ b/spa/plugins/alsa/acp/alsa-mixer.c @@ -0,0 +1,5398 @@ +/*** + 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, see <http://www.gnu.org/licenses/>. +***/ + +#include "config.h" + +#include <sys/types.h> +#include <alsa/asoundlib.h> +#include <math.h> + +#include <valgrind/memcheck.h> + +#include "conf-parser.h" +#include "alsa-mixer.h" +#include "alsa-util.h" + +static int setting_select(pa_alsa_setting *s, snd_mixer_t *m); + +struct description_map { + const char *key; + const char *description; +}; + +struct description2_map { + const char *key; + const char *description; + pa_device_port_type_t type; +}; + +char *pa_alsa_mixer_id_to_string(char *dst, size_t dst_len, pa_alsa_mixer_id *id) { + if (id->index > 0) { + snprintf(dst, dst_len, "'%s',%d", id->name, id->index); + } else { + snprintf(dst, dst_len, "'%s'", id->name); + } + return dst; +} + +static int alsa_id_decode(const char *src, char *name, int *index) { + char *idx, c; + int i; + + *index = 0; + c = src[0]; + /* Strip quotes in entries such as 'Speaker',1 or "Speaker",1 */ + if (c == '\'' || c == '"') { + strcpy(name, src + 1); + for (i = 0; name[i] != '\0' && name[i] != c; i++); + idx = NULL; + if (name[i]) { + name[i] = '\0'; + idx = strchr(name + i + 1, ','); + } + } else { + strcpy(name, src); + idx = strchr(name, ','); + } + if (idx == NULL) + return 0; + *idx = '\0'; + idx++; + if (*idx < '0' || *idx > '9') { + pa_log("Element %s: index value is invalid", src); + return 1; + } + *index = atoi(idx); + return 0; +} + +pa_alsa_jack *pa_alsa_jack_new(pa_alsa_path *path, const char *mixer_device_name, const char *name, int index) { + pa_alsa_jack *jack; + + pa_assert(name); + + jack = pa_xnew0(pa_alsa_jack, 1); + jack->path = path; + jack->mixer_device_name = pa_xstrdup(mixer_device_name); + jack->name = pa_xstrdup(name); + jack->alsa_id.name = pa_sprintf_malloc("%s Jack", name); + jack->alsa_id.index = index; + jack->state_unplugged = PA_AVAILABLE_NO; + jack->state_plugged = PA_AVAILABLE_YES; + jack->ucm_devices = pa_dynarray_new(NULL); + jack->ucm_hw_mute_devices = pa_dynarray_new(NULL); + + return jack; +} + +void pa_alsa_jack_free(pa_alsa_jack *jack) { + pa_assert(jack); + + pa_dynarray_free(jack->ucm_hw_mute_devices); + pa_dynarray_free(jack->ucm_devices); + + pa_xfree(jack->alsa_id.name); + pa_xfree(jack->name); + pa_xfree(jack->mixer_device_name); + pa_xfree(jack); +} + +void pa_alsa_jack_set_has_control(pa_alsa_jack *jack, bool has_control) { + pa_alsa_ucm_device *device; + unsigned idx; + + pa_assert(jack); + + if (has_control == jack->has_control) + return; + + jack->has_control = has_control; + + PA_DYNARRAY_FOREACH(device, jack->ucm_hw_mute_devices, idx) + pa_alsa_ucm_device_update_available(device); + + PA_DYNARRAY_FOREACH(device, jack->ucm_devices, idx) + pa_alsa_ucm_device_update_available(device); +} + +void pa_alsa_jack_set_plugged_in(pa_alsa_jack *jack, bool plugged_in) { + pa_alsa_ucm_device *device; + unsigned idx; + + pa_assert(jack); + + if (plugged_in == jack->plugged_in) + return; + + jack->plugged_in = plugged_in; + + /* XXX: If this is a headphone jack that mutes speakers when plugged in, + * and the headphones get unplugged, then the headphone device must be set + * to unavailable and the speaker device must be set to unknown. So far so + * good. But there's an ugly detail: we must first set the availability of + * the speakers and then the headphones. We shouldn't need to care about + * the order, but we have to, because module-switch-on-port-available gets + * separate events for the two devices, and the intermediate state between + * the two events is such that the second event doesn't trigger the desired + * port switch, if the event order is "wrong". + * + * These are the transitions when the event order is "right": + * + * speakers: 1) unavailable -> 2) unknown -> 3) unknown + * headphones: 1) available -> 2) available -> 3) unavailable + * + * In the 2 -> 3 transition, headphones become unavailable, and + * module-switch-on-port-available sees that speakers can be used, so the + * port gets changed as it should. + * + * These are the transitions when the event order is "wrong": + * + * speakers: 1) unavailable -> 2) unavailable -> 3) unknown + * headphones: 1) available -> 2) unavailable -> 3) unavailable + * + * In the 1 -> 2 transition, headphones become unavailable, and there are + * no available ports to use, so no port change happens. In the 2 -> 3 + * transition, speaker availability becomes unknown, but that's not + * a strong enough signal for module-switch-on-port-available, so it still + * doesn't do the port switch. + * + * We should somehow merge the two events so that + * module-switch-on-port-available would handle both transitions in one go. + * If module-switch-on-port-available used a defer event to delay + * the port availability processing, that would probably do the trick. */ + + PA_DYNARRAY_FOREACH(device, jack->ucm_hw_mute_devices, idx) + pa_alsa_ucm_device_update_available(device); + + PA_DYNARRAY_FOREACH(device, jack->ucm_devices, idx) + pa_alsa_ucm_device_update_available(device); +} + +void pa_alsa_jack_add_ucm_device(pa_alsa_jack *jack, pa_alsa_ucm_device *device) { + pa_alsa_ucm_device *idevice; + unsigned idx, prio, iprio; + + pa_assert(jack); + pa_assert(device); + + /* store the ucm device with the sequence of priority from low to high. this + * could guarantee when the jack state is changed, the device with highest + * priority will send to the module-switch-on-port-available last */ + prio = device->playback_priority ? device->playback_priority : device->capture_priority; + + PA_DYNARRAY_FOREACH(idevice, jack->ucm_devices, idx) { + iprio = idevice->playback_priority ? idevice->playback_priority : idevice->capture_priority; + if (iprio > prio) + break; + } + pa_dynarray_insert_by_index(jack->ucm_devices, device, idx); +} + +void pa_alsa_jack_add_ucm_hw_mute_device(pa_alsa_jack *jack, pa_alsa_ucm_device *device) { + pa_assert(jack); + pa_assert(device); + + pa_dynarray_append(jack->ucm_hw_mute_devices, device); +} + +static const char *lookup_description(const char *key, const struct description_map dm[], unsigned n) { + unsigned i; + + if (!key) + return NULL; + + for (i = 0; i < n; i++) + if (pa_streq(dm[i].key, key)) + return _(dm[i].description); + + return NULL; +} + +static const struct description2_map *lookup_description2(const char *key, const struct description2_map dm[], unsigned n) { + unsigned i; + + if (!key) + return NULL; + + for (i = 0; i < n; i++) + if (pa_streq(dm[i].key, key)) + return &dm[i]; + + return NULL; +} + +void pa_alsa_mixer_use_for_poll(pa_hashmap *mixers, snd_mixer_t *mixer_handle) +{ + pa_alsa_mixer *pm; + void *state; + + PA_HASHMAP_FOREACH(pm, mixers, state) { + if (pm->mixer_handle == mixer_handle) { + pm->used_for_probe_only = false; + pm->used_for_poll = true; + } + } +} + +#if 0 +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; + snd_hctl_t *hctl; + + pa_mainloop_api *m; + pa_defer_event *defer; + pa_io_event **ios; + + bool 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 || fdl->hctl); + 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 (fdl->hctl) + err = snd_hctl_poll_descriptors_revents(fdl->hctl, fdl->work_fds, fdl->num_fds, &revents); + else + err = snd_mixer_poll_descriptors_revents(fdl->mixer, fdl->work_fds, fdl->num_fds, &revents); + + if (err < 0) { + pa_log_error("Unable to get poll revent: %s", pa_alsa_strerror(err)); + return; + } + + a->defer_enable(fdl->defer, 1); + + if (revents) { + if (fdl->hctl) + snd_hctl_handle_events(fdl->hctl); + else + 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 || fdl->hctl); + + a->defer_enable(fdl->defer, 0); + + if (fdl->hctl) + n = snd_hctl_poll_descriptors_count(fdl->hctl); + else + n = snd_mixer_poll_descriptors_count(fdl->mixer); + + if (n < 0) { + pa_log("snd_mixer_poll_descriptors_count() failed: %s", pa_alsa_strerror(n)); + return; + } + else if (n == 0) { + pa_log_warn("Mixer has no poll descriptors. Please control mixer from PulseAudio only."); + 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 (fdl->hctl) + err = snd_hctl_poll_descriptors(fdl->hctl, fdl->work_fds, num_fds); + else + err = snd_mixer_poll_descriptors(fdl->mixer, fdl->work_fds, num_fds); + + if (err < 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); +} + +/* We can listen to either a snd_hctl_t or a snd_mixer_t, but not both */ +int pa_alsa_fdlist_set_handle(struct pa_alsa_fdlist *fdl, snd_mixer_t *mixer_handle, snd_hctl_t *hctl_handle, pa_mainloop_api *m) { + pa_assert(fdl); + pa_assert(hctl_handle || mixer_handle); + pa_assert(!(hctl_handle && mixer_handle)); + pa_assert(m); + pa_assert(!fdl->m); + + fdl->hctl = hctl_handle; + 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, ret = 0; + + pd = pa_rtpoll_item_get_work_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)); + ret = -1; + goto fail; + } + + if (revents) { + if (revents & (POLLNVAL | POLLERR)) { + pa_log_debug("Device disconnected, stopping poll on mixer"); + goto fail; + } else if (revents & POLLERR) { + /* This shouldn't happen. */ + pa_log_error("Got a POLLERR (revents = %04x), stopping poll on mixer", revents); + goto fail; + } + + err = snd_mixer_handle_events(pd->mixer); + + if (PA_LIKELY(err >= 0)) { + pa_rtpoll_item_free(i); + pa_alsa_set_mixer_rtpoll(pd, pd->mixer, pd->rtpoll); + } else { + pa_log_error("Error handling mixer event: %s", pa_alsa_strerror(err)); + ret = -1; + goto fail; + } + } + + return ret; + +fail: + pa_rtpoll_item_free(i); + + pd->poll_item = NULL; + pd->rtpoll = NULL; + pd->mixer = NULL; + + return ret; +} + +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; + } + else if (n == 0) { + pa_log_warn("Mixer has no poll descriptors. Please control mixer from PulseAudio only."); + return 0; + } + + 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_work_callback(i, rtpoll_work_cb, pd); + + return 0; +} +#endif + +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 snd_mixer_selem_channel_id_t alsa_channel_positions[POSITION_MASK_CHANNELS] = { + SND_MIXER_SCHN_FRONT_LEFT, + SND_MIXER_SCHN_FRONT_RIGHT, + SND_MIXER_SCHN_REAR_LEFT, + SND_MIXER_SCHN_REAR_RIGHT, + SND_MIXER_SCHN_FRONT_CENTER, + SND_MIXER_SCHN_WOOFER, + SND_MIXER_SCHN_SIDE_LEFT, + SND_MIXER_SCHN_SIDE_RIGHT, +#if POSITION_MASK_CHANNELS > 8 +#error "Extend alsa_channel_positions[] array (9+)" +#endif +}; + +static void setting_free(pa_alsa_setting *s) { + pa_assert(s); + + if (s->options) + pa_idxset_free(s->options, 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 decibel_fix_free(pa_alsa_decibel_fix *db_fix) { + pa_assert(db_fix); + + pa_xfree(db_fix->name); + pa_xfree(db_fix->db_values); + + pa_xfree(db_fix->key); + pa_xfree(db_fix); +} + +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); + } + + if (e->db_fix) + decibel_fix_free(e->db_fix); + + pa_xfree(e->alsa_id.name); + pa_xfree(e); +} + +void pa_alsa_path_free(pa_alsa_path *p) { + pa_alsa_jack *j; + pa_alsa_element *e; + pa_alsa_setting *s; + + pa_assert(p); + + while ((j = p->jacks)) { + PA_LLIST_REMOVE(pa_alsa_jack, p->jacks, j); + pa_alsa_jack_free(j); + } + + 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_proplist_free(p->proplist); + pa_xfree(p->availability_group); + pa_xfree(p->name); + pa_xfree(p->description); + pa_xfree(p->description_key); + pa_xfree(p); +} + +void pa_alsa_path_set_free(pa_alsa_path_set *ps) { + pa_assert(ps); + + if (ps->paths) + pa_hashmap_free(ps->paths); + + pa_xfree(ps); +} + +int pa_alsa_path_set_is_empty(pa_alsa_path_set *ps) { + if (ps && !pa_hashmap_isempty(ps->paths)) + return 0; + return 1; +} + +static long to_alsa_dB(pa_volume_t v) { + return lround(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, aid) \ + do { \ + snd_mixer_selem_id_alloca(&(sid)); \ + snd_mixer_selem_id_set_name((sid), (aid)->name); \ + snd_mixer_selem_id_set_index((sid), (aid)->index); \ + } 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; + char buf[64]; + unsigned k; + + pa_assert(m); + pa_assert(e); + pa_assert(cm); + pa_assert(v); + + SELEM_INIT(sid, &e->alsa_id); + if (!(me = snd_mixer_find_selem(m, sid))) { + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_warn("Element %s seems to have disappeared.", buf); + 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)) { + if (e->db_fix) { + if ((r = snd_mixer_selem_get_playback_volume(me, c, &value)) >= 0) { + /* If the channel volume is outside the limits set + * by the dB fix, we clamp the hw volume to be + * within the limits. */ + if (value < e->db_fix->min_step) { + value = e->db_fix->min_step; + snd_mixer_selem_set_playback_volume(me, c, value); + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_debug("Playback volume for element %s channel %i was below the dB fix limit. " + "Volume reset to %0.2f dB.", buf, c, + e->db_fix->db_values[value - e->db_fix->min_step] / 100.0); + } else if (value > e->db_fix->max_step) { + value = e->db_fix->max_step; + snd_mixer_selem_set_playback_volume(me, c, value); + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_debug("Playback volume for element %s channel %i was over the dB fix limit. " + "Volume reset to %0.2f dB.", buf, c, + e->db_fix->db_values[value - e->db_fix->min_step] / 100.0); + } + + /* Volume step -> dB value conversion. */ + value = e->db_fix->db_values[value - e->db_fix->min_step]; + } + } else + r = snd_mixer_selem_get_playback_dB(me, c, &value); + } else + r = -1; + } else { + if (snd_mixer_selem_has_capture_channel(me, c)) { + if (e->db_fix) { + if ((r = snd_mixer_selem_get_capture_volume(me, c, &value)) >= 0) { + /* If the channel volume is outside the limits set + * by the dB fix, we clamp the hw volume to be + * within the limits. */ + if (value < e->db_fix->min_step) { + value = e->db_fix->min_step; + snd_mixer_selem_set_capture_volume(me, c, value); + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_debug("Capture volume for element %s channel %i was below the dB fix limit. " + "Volume reset to %0.2f dB.", buf, c, + e->db_fix->db_values[value - e->db_fix->min_step] / 100.0); + } else if (value > e->db_fix->max_step) { + value = e->db_fix->max_step; + snd_mixer_selem_set_capture_volume(me, c, value); + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_debug("Capture volume for element %s channel %i was over the dB fix limit. " + "Volume reset to %0.2f dB.", buf, c, + e->db_fix->db_values[value - e->db_fix->min_step] / 100.0); + } + + /* Volume step -> dB value conversion. */ + value = e->db_fix->db_values[value - e->db_fix->min_step]; + } + } else + r = snd_mixer_selem_get_capture_dB(me, c, &value); + } else + r = -1; + } + + if (r < 0) + continue; + + VALGRIND_MAKE_MEM_DEFINED(&value, sizeof(value)); + + 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, bool *b) { + snd_mixer_selem_id_t *sid; + snd_mixer_elem_t *me; + snd_mixer_selem_channel_id_t c; + char buf[64]; + + pa_assert(m); + pa_assert(e); + pa_assert(b); + + SELEM_INIT(sid, &e->alsa_id); + if (!(me = snd_mixer_find_selem(m, sid))) { + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_warn("Element %s seems to have disappeared.", buf); + 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, bool *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) { + bool 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; +} + +/* Finds the closest item in db_fix->db_values and returns the corresponding + * step. *db_value is replaced with the value from the db_values table. + * Rounding is done based on the rounding parameter: -1 means rounding down and + * +1 means rounding up. */ +static long decibel_fix_get_step(pa_alsa_decibel_fix *db_fix, long *db_value, int rounding) { + unsigned i = 0; + unsigned max_i = 0; + + pa_assert(db_fix); + pa_assert(db_value); + pa_assert(rounding != 0); + + max_i = db_fix->max_step - db_fix->min_step; + + if (rounding > 0) { + for (i = 0; i < max_i; i++) { + if (db_fix->db_values[i] >= *db_value) + break; + } + } else { + for (i = 0; i < max_i; i++) { + if (db_fix->db_values[i + 1] > *db_value) + break; + } + } + + *db_value = db_fix->db_values[i]; + + return i + db_fix->min_step; +} + +/* Alsa lib documentation says for snd_mixer_selem_set_playback_dB() direction argument, + * that "-1 = accurate or first below, 0 = accurate, 1 = accurate or first above". + * But even with accurate nearest dB volume step is not selected, so that is why we need + * this function. Returns 0 and nearest selectable volume in *value_dB on success or + * negative error code if fails. */ +static int element_get_nearest_alsa_dB(snd_mixer_elem_t *me, snd_mixer_selem_channel_id_t c, pa_alsa_direction_t d, long *value_dB) { + + long alsa_val; + long value_high; + long value_low; + int r = -1; + + pa_assert(me); + pa_assert(value_dB); + + if (d == PA_ALSA_DIRECTION_OUTPUT) { + if ((r = snd_mixer_selem_ask_playback_dB_vol(me, *value_dB, +1, &alsa_val)) >= 0) + r = snd_mixer_selem_ask_playback_vol_dB(me, alsa_val, &value_high); + + if (r < 0) + return r; + + if (value_high == *value_dB) + return r; + + if ((r = snd_mixer_selem_ask_playback_dB_vol(me, *value_dB, -1, &alsa_val)) >= 0) + r = snd_mixer_selem_ask_playback_vol_dB(me, alsa_val, &value_low); + } else { + if ((r = snd_mixer_selem_ask_capture_dB_vol(me, *value_dB, +1, &alsa_val)) >= 0) + r = snd_mixer_selem_ask_capture_vol_dB(me, alsa_val, &value_high); + + if (r < 0) + return r; + + if (value_high == *value_dB) + return r; + + if ((r = snd_mixer_selem_ask_capture_dB_vol(me, *value_dB, -1, &alsa_val)) >= 0) + r = snd_mixer_selem_ask_capture_vol_dB(me, alsa_val, &value_low); + } + + if (r < 0) + return r; + + if (labs(value_high - *value_dB) < labs(value_low - *value_dB)) + *value_dB = value_high; + else + *value_dB = value_low; + + return r; +} + +static int element_set_volume(pa_alsa_element *e, snd_mixer_t *m, const pa_channel_map *cm, pa_cvolume *v, bool deferred_volume, bool 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; + char buf[64]; + 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_id); + if (!(me = snd_mixer_find_selem(m, sid))) { + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_warn("Element %s seems to have disappeared.", buf); + 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; + bool 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); + int rounding; + + if (e->volume_limit >= 0 && value > (e->max_dB * 100)) + value = e->max_dB * 100; + + if (e->direction == PA_ALSA_DIRECTION_OUTPUT) { + /* If we call set_playback_volume() without checking first + * if the channel is available, ALSA behaves very + * strangely and doesn't fail the call */ + if (snd_mixer_selem_has_playback_channel(me, c)) { + rounding = +1; + if (e->db_fix) { + if (write_to_hw) + r = snd_mixer_selem_set_playback_volume(me, c, decibel_fix_get_step(e->db_fix, &value, rounding)); + else { + decibel_fix_get_step(e->db_fix, &value, rounding); + r = 0; + } + + } else { + if (write_to_hw) { + if (deferred_volume) { + if ((r = element_get_nearest_alsa_dB(me, c, PA_ALSA_DIRECTION_OUTPUT, &value)) >= 0) + r = snd_mixer_selem_set_playback_dB(me, c, value, 0); + } else { + if ((r = snd_mixer_selem_set_playback_dB(me, c, value, rounding)) >= 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, rounding, &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)) { + rounding = -1; + if (e->db_fix) { + if (write_to_hw) + r = snd_mixer_selem_set_capture_volume(me, c, decibel_fix_get_step(e->db_fix, &value, rounding)); + else { + decibel_fix_get_step(e->db_fix, &value, rounding); + r = 0; + } + + } else { + if (write_to_hw) { + if (deferred_volume) { + if ((r = element_get_nearest_alsa_dB(me, c, PA_ALSA_DIRECTION_INPUT, &value)) >= 0) + r = snd_mixer_selem_set_capture_dB(me, c, value, 0); + } else { + if ((r = snd_mixer_selem_set_capture_dB(me, c, value, rounding)) >= 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, rounding, &alsa_val)) >= 0) + r = snd_mixer_selem_ask_capture_vol_dB(me, alsa_val, &value); + } + } + } else + r = -1; + } + + if (r < 0) + continue; + + 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, bool deferred_volume, bool 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, deferred_volume, 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, bool b) { + snd_mixer_elem_t *me; + snd_mixer_selem_id_t *sid; + char buf[64]; + int r; + + pa_assert(m); + pa_assert(e); + + SELEM_INIT(sid, &e->alsa_id); + if (!(me = snd_mixer_find_selem(m, sid))) { + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_warn("Element %s seems to have disappeared.", buf); + 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_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_warn("Failed to set switch of %s: %s", buf, pa_alsa_strerror(errno)); + } + + return r; +} + +int pa_alsa_path_set_mute(pa_alsa_path *p, snd_mixer_t *m, bool 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; +} + +/* Depending on whether e->volume_use is _OFF, _ZERO or _CONSTANT, this + * function sets all channels of the volume element to e->min_volume, 0 dB or + * e->constant_volume. */ +static int element_set_constant_volume(pa_alsa_element *e, snd_mixer_t *m) { + snd_mixer_elem_t *me = NULL; + snd_mixer_selem_id_t *sid = NULL; + int r = 0; + long volume = -1; + bool volume_set = false; + char buf[64]; + + pa_assert(m); + pa_assert(e); + + SELEM_INIT(sid, &e->alsa_id); + if (!(me = snd_mixer_find_selem(m, sid))) { + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_warn("Element %s seems to have disappeared.", buf); + return -1; + } + + switch (e->volume_use) { + case PA_ALSA_VOLUME_OFF: + volume = e->min_volume; + volume_set = true; + break; + + case PA_ALSA_VOLUME_ZERO: + if (e->db_fix) { + long dB = 0; + + volume = decibel_fix_get_step(e->db_fix, &dB, (e->direction == PA_ALSA_DIRECTION_OUTPUT ? +1 : -1)); + volume_set = true; + } + break; + + case PA_ALSA_VOLUME_CONSTANT: + volume = e->constant_volume; + volume_set = true; + break; + + default: + pa_assert_not_reached(); + } + + if (volume_set) { + if (e->direction == PA_ALSA_DIRECTION_OUTPUT) + r = snd_mixer_selem_set_playback_volume_all(me, volume); + else + r = snd_mixer_selem_set_capture_volume_all(me, volume); + } else { + pa_assert(e->volume_use == PA_ALSA_VOLUME_ZERO); + pa_assert(!e->db_fix); + + 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_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_warn("Failed to set volume of %s: %s", buf, pa_alsa_strerror(errno)); + } + + return r; +} + +int pa_alsa_path_select(pa_alsa_path *p, pa_alsa_setting *s, snd_mixer_t *m, bool device_is_muted) { + pa_alsa_element *e; + int r = 0; + + pa_assert(m); + pa_assert(p); + + pa_log_info("Activating path %s", p->name); + pa_alsa_path_dump(p); + + /* First turn on hw mute if available, to avoid noise + * when setting the mixer controls. */ + if (p->mute_during_activation) { + PA_LLIST_FOREACH(e, p->elements) { + if (e->switch_use == PA_ALSA_SWITCH_MUTE) + /* If the muting fails here, that's not a critical problem for + * selecting a path, so we ignore the return value. + * element_set_switch() will print a warning anyway, so this + * won't be a silent failure either. */ + (void) element_set_switch(e, m, false); + } + } + + 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: + case PA_ALSA_VOLUME_ZERO: + case PA_ALSA_VOLUME_CONSTANT: + r = element_set_constant_volume(e, m); + break; + + case PA_ALSA_VOLUME_MERGE: + case PA_ALSA_VOLUME_IGNORE: + r = 0; + break; + } + + if (r < 0) + return -1; + } + + if (s) + setting_select(s, m); + + /* Finally restore hw mute to the device mute status. */ + if (p->mute_during_activation) { + PA_LLIST_FOREACH(e, p->elements) { + if (e->switch_use == PA_ALSA_SWITCH_MUTE) { + if (element_set_switch(e, m, !device_is_muted) < 0) + return -1; + } + } + } + + return 0; +} + +static int check_required(pa_alsa_element *e, snd_mixer_elem_t *me) { + bool has_switch; + bool has_enumeration; + bool 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; + + if (e->required_any != PA_ALSA_REQUIRED_IGNORE) { + switch (e->required_any) { + case PA_ALSA_REQUIRED_VOLUME: + e->path->req_any_present |= (e->volume_use != PA_ALSA_VOLUME_IGNORE); + break; + case PA_ALSA_REQUIRED_SWITCH: + e->path->req_any_present |= (e->switch_use != PA_ALSA_SWITCH_IGNORE); + break; + case PA_ALSA_REQUIRED_ENUMERATION: + e->path->req_any_present |= (e->enumeration_use != PA_ALSA_ENUMERATION_IGNORE); + break; + case PA_ALSA_REQUIRED_ANY: + e->path->req_any_present |= + (e->volume_use != PA_ALSA_VOLUME_IGNORE) || + (e->switch_use != PA_ALSA_SWITCH_IGNORE) || + (e->enumeration_use != PA_ALSA_ENUMERATION_IGNORE); + break; + default: + pa_assert_not_reached(); + } + } + + if (e->enumeration_use == PA_ALSA_ENUMERATION_SELECT) { + pa_alsa_option *o; + PA_LLIST_FOREACH(o, e->options) { + e->path->req_any_present |= (o->required_any != PA_ALSA_REQUIRED_IGNORE) && + (o->alsa_idx >= 0); + if (o->required != PA_ALSA_REQUIRED_IGNORE && o->alsa_idx < 0) + return -1; + if (o->required_absent != PA_ALSA_REQUIRED_IGNORE && o->alsa_idx >= 0) + return -1; + } + } + + return 0; +} + +static int element_ask_vol_dB(snd_mixer_elem_t *me, pa_alsa_direction_t dir, long value, long *dBvalue) { + if (dir == PA_ALSA_DIRECTION_OUTPUT) + return snd_mixer_selem_ask_playback_vol_dB(me, value, dBvalue); + else + return snd_mixer_selem_ask_capture_vol_dB(me, value, dBvalue); +} + +static bool element_probe_volume(pa_alsa_element *e, snd_mixer_elem_t *me) { + + long min_dB = 0, max_dB = 0; + int r; + bool is_mono; + pa_channel_position_t p; + char buf[64]; + + 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 + return false; + } + } 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 + return false; + } + } + + e->direction_try_other = 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_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_warn("Failed to get volume range of %s: %s", buf, pa_alsa_strerror(r)); + return false; + } + + if (e->min_volume >= e->max_volume) { + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_warn("Your kernel driver is broken for element %s: it reports a volume range from %li to %li which makes no sense.", + buf, e->min_volume, e->max_volume); + return false; + } + if (e->volume_use == PA_ALSA_VOLUME_CONSTANT && (e->min_volume > e->constant_volume || e->max_volume < e->constant_volume)) { + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_warn("Constant volume %li configured for element %s, but the available range is from %li to %li.", + e->constant_volume, buf, e->min_volume, e->max_volume); + return false; + } + + + if (e->db_fix && ((e->min_volume > e->db_fix->min_step) || (e->max_volume < e->db_fix->max_step))) { + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_warn("The step range of the decibel fix for element %s (%li-%li) doesn't fit to the " + "real hardware range (%li-%li). Disabling the decibel fix.", buf, + e->db_fix->min_step, e->db_fix->max_step, e->min_volume, e->max_volume); + + decibel_fix_free(e->db_fix); + e->db_fix = NULL; + } + + if (e->db_fix) { + e->has_dB = true; + e->min_volume = e->db_fix->min_step; + e->max_volume = e->db_fix->max_step; + min_dB = e->db_fix->db_values[0]; + max_dB = e->db_fix->db_values[e->db_fix->max_step - e->db_fix->min_step]; + } else 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; + + /* Assume decibel data to be incorrect if max_dB is negative. */ + if (e->has_dB && max_dB < 0 && !e->db_fix) { + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_warn("The decibel volume range for element %s (%li dB - %li dB) has negative maximum. " + "Disabling the decibel range.", buf, min_dB, max_dB); + e->has_dB = false; + } + + /* Check that the kernel driver returns consistent limits with + * both _get_*_dB_range() and _ask_*_vol_dB(). */ + if (e->has_dB && !e->db_fix) { + long min_dB_checked = 0; + long max_dB_checked = 0; + + if (element_ask_vol_dB(me, e->direction, e->min_volume, &min_dB_checked) < 0) { + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_warn("Failed to query the dB value for %s at volume level %li", buf, e->min_volume); + return false; + } + + if (element_ask_vol_dB(me, e->direction, e->max_volume, &max_dB_checked) < 0) { + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_warn("Failed to query the dB value for %s at volume level %li", buf, e->max_volume); + return false; + } + + if (min_dB != min_dB_checked || max_dB != max_dB_checked) { + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_warn("Your kernel driver is broken: the reported dB range for %s (from %0.2f dB to %0.2f dB) " + "doesn't match the dB values at minimum and maximum volume levels: %0.2f dB at level %li, " + "%0.2f dB at level %li.", buf, min_dB / 100.0, max_dB / 100.0, + min_dB_checked / 100.0, e->min_volume, max_dB_checked / 100.0, e->max_volume); + return false; + } + } + + if (e->has_dB) { + e->min_dB = ((double) min_dB) / 100.0; + e->max_dB = ((double) max_dB) / 100.0; + + if (min_dB >= max_dB) { + pa_assert(!e->db_fix); + 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->volume_limit >= 0) { + if (e->volume_limit <= e->min_volume || e->volume_limit > e->max_volume) { + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_warn("Volume limit for element %s of path %s is invalid: %li isn't within the valid range " + "%li-%li. The volume limit is ignored.", + buf, e->path->name, e->volume_limit, e->min_volume + 1, e->max_volume); + } else { + e->max_volume = e->volume_limit; + + if (e->has_dB) { + if (e->db_fix) { + e->db_fix->max_step = e->max_volume; + e->max_dB = ((double) e->db_fix->db_values[e->db_fix->max_step - e->db_fix->min_step]) / 100.0; + } else if (element_ask_vol_dB(me, e->direction, e->max_volume, &max_dB) < 0) { + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_warn("Failed to get dB value of %s: %s", buf, pa_alsa_strerror(r)); + e->has_dB = false; + } else + e->max_dB = ((double) max_dB) / 100.0; + } + } + } + + 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 & (1 << (e->n_channels-1))) && e->masks[SND_MIXER_SCHN_MONO][e->n_channels-1] == 0) { + pa_log_warn("Override map for mono element %s is invalid, ignoring override map", e->path->name); + e->override_map &= ~(1 << (e->n_channels-1)); + } + if (!(e->override_map & (1 << (e->n_channels-1)))) { + for (p = PA_CHANNEL_POSITION_FRONT_LEFT; p < PA_CHANNEL_POSITION_MAX; p++) { + if (alsa_channel_ids[p] == SND_MIXER_SCHN_UNKNOWN) + continue; + 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]; + return true; + } + + 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_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_warn("Volume element %s with no channels?", buf); + return false; + } else if (e->n_channels > POSITION_MASK_CHANNELS) { + /* FIXME: In some places code like this is used: + * + * e->masks[alsa_channel_ids[p]][e->n_channels-1] + * + * The definition of e->masks is + * + * pa_channel_position_mask_t masks[SND_MIXER_SCHN_LAST + 1][POSITION_MASK_CHANNELS]; + * + * Since the array size is fixed at POSITION_MASK_CHANNELS, we obviously + * don't support elements with more than POSITION_MASK_CHANNELS + * channels... */ + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_warn("Volume element %s has %u channels. That's too much! I can't handle that!", buf, e->n_channels); + return false; + } + +retry: + if (!(e->override_map & (1 << (e->n_channels-1)))) { + for (p = PA_CHANNEL_POSITION_FRONT_LEFT; p < PA_CHANNEL_POSITION_MAX; p++) { + bool 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++) { + if (alsa_channel_ids[p] == SND_MIXER_SCHN_UNKNOWN) + continue; + + e->merged_mask |= e->masks[alsa_channel_ids[p]][e->n_channels-1]; + } + + if (e->merged_mask == 0) { + if (!(e->override_map & (1 << (e->n_channels-1)))) { + pa_log_warn("Channel map for element %s is invalid", e->path->name); + return false; + } + pa_log_warn("Override map for element %s has empty result, ignoring override map", e->path->name); + e->override_map &= ~(1 << (e->n_channels-1)); + goto retry; + } + + return true; +} + +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); + pa_assert(e->path); + + SELEM_INIT(sid, &e->alsa_id); + + 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 (!element_probe_volume(e, me)) + e->volume_use = PA_ALSA_VOLUME_IGNORE; + + 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; + } + } + } + + if (check_required(e, me) < 0) + return -1; + + return 0; +} + +static int jack_probe(pa_alsa_jack *j, pa_alsa_mapping *mapping, snd_mixer_t *m) { + bool has_control; + + pa_assert(j); + pa_assert(j->path); + + if (j->append_pcm_to_name) { + char *new_name; + + if (!mapping) { + /* This could also be an assertion, because this should never + * happen. At the time of writing, mapping can only be NULL when + * module-alsa-sink/source synthesizes a path, and those + * synthesized paths never have any jacks, so jack_probe() should + * never be called with a NULL mapping. */ + pa_log("Jack %s: append_pcm_to_name is set, but mapping is NULL. Can't use this jack.", j->name); + return -1; + } + + new_name = pa_sprintf_malloc("%s,pcm=%i Jack", j->name, mapping->hw_device_index); + pa_xfree(j->alsa_id.name); + j->alsa_id.name = new_name; + j->append_pcm_to_name = false; + } + + has_control = pa_alsa_mixer_find_card(m, &j->alsa_id, 0) != NULL; + pa_alsa_jack_set_has_control(j, has_control); + + if (j->has_control) { + if (j->required_absent != PA_ALSA_REQUIRED_IGNORE) + return -1; + if (j->required_any != PA_ALSA_REQUIRED_IGNORE) + j->path->req_any_present = true; + } else { + if (j->required != PA_ALSA_REQUIRED_IGNORE) + return -1; + } + + return 0; +} + +pa_alsa_element * pa_alsa_element_get(pa_alsa_path *p, const char *section, bool prefixed) { + pa_alsa_element *e; + char *name; + int index; + + 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; + + name = alloca(strlen(section) + 1); + if (alsa_id_decode(section, name, &index)) + return NULL; + + if (p->last_element && pa_streq(p->last_element->alsa_id.name, name) && + p->last_element->alsa_id.index == index) + return p->last_element; + + PA_LLIST_FOREACH(e, p->elements) + if (pa_streq(e->alsa_id.name, name) && e->alsa_id.index == index) + goto finish; + + e = pa_xnew0(pa_alsa_element, 1); + e->path = p; + e->alsa_id.name = pa_xstrdup(name); + e->alsa_id.index = index; + e->direction = p->direction; + e->volume_limit = -1; + + PA_LLIST_INSERT_AFTER(pa_alsa_element, p->elements, p->last_element, e); + +finish: + p->last_element = e; + return e; +} + +static pa_alsa_jack* jack_get(pa_alsa_path *p, const char *section) { + pa_alsa_jack *j; + char *name; + int index; + + if (!pa_startswith(section, "Jack ")) + return NULL; + section += 5; + + name = alloca(strlen(section) + 1); + if (alsa_id_decode(section, name, &index)) + return NULL; + + if (p->last_jack && pa_streq(p->last_jack->name, name) && + p->last_jack->alsa_id.index == index) + return p->last_jack; + + PA_LLIST_FOREACH(j, p->jacks) + if (pa_streq(j->name, name) && j->alsa_id.index == index) + goto finish; + + j = pa_alsa_jack_new(p, NULL, name, index); + PA_LLIST_INSERT_AFTER(pa_alsa_jack, p->jacks, p->last_jack, j); + +finish: + p->last_jack = j; + return j; +} + +static pa_alsa_option* option_get(pa_alsa_path *p, const char *section) { + char *en, *name; + const char *on; + pa_alsa_option *o; + pa_alsa_element *e; + size_t len; + int index; + + 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; + + len = on - section; + en = alloca(len + 1); + strncpy(en, section, len); + en[len] = '\0'; + + name = alloca(strlen(en) + 1); + if (alsa_id_decode(en, name, &index)) + return NULL; + + on++; + + if (p->last_option && + pa_streq(p->last_option->element->alsa_id.name, name) && + p->last_option->element->alsa_id.index == index && + pa_streq(p->last_option->alsa_name, on)) { + return p->last_option; + } + + pa_assert_se(e = pa_alsa_element_get(p, en, false)); + + 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(pa_config_parser_state *state) { + pa_alsa_path *p; + pa_alsa_element *e; + + pa_assert(state); + + p = state->userdata; + + if (!(e = pa_alsa_element_get(p, state->section, true))) { + pa_log("[%s:%u] Switch makes no sense in '%s'", state->filename, state->lineno, state->section); + return -1; + } + + if (pa_streq(state->rvalue, "ignore")) + e->switch_use = PA_ALSA_SWITCH_IGNORE; + else if (pa_streq(state->rvalue, "mute")) + e->switch_use = PA_ALSA_SWITCH_MUTE; + else if (pa_streq(state->rvalue, "off")) + e->switch_use = PA_ALSA_SWITCH_OFF; + else if (pa_streq(state->rvalue, "on")) + e->switch_use = PA_ALSA_SWITCH_ON; + else if (pa_streq(state->rvalue, "select")) + e->switch_use = PA_ALSA_SWITCH_SELECT; + else { + pa_log("[%s:%u] Switch invalid of '%s'", state->filename, state->lineno, state->section); + return -1; + } + + return 0; +} + +static int element_parse_volume(pa_config_parser_state *state) { + pa_alsa_path *p; + pa_alsa_element *e; + + pa_assert(state); + + p = state->userdata; + + if (!(e = pa_alsa_element_get(p, state->section, true))) { + pa_log("[%s:%u] Volume makes no sense in '%s'", state->filename, state->lineno, state->section); + return -1; + } + + if (pa_streq(state->rvalue, "ignore")) + e->volume_use = PA_ALSA_VOLUME_IGNORE; + else if (pa_streq(state->rvalue, "merge")) + e->volume_use = PA_ALSA_VOLUME_MERGE; + else if (pa_streq(state->rvalue, "off")) + e->volume_use = PA_ALSA_VOLUME_OFF; + else if (pa_streq(state->rvalue, "zero")) + e->volume_use = PA_ALSA_VOLUME_ZERO; + else { + uint32_t constant; + + if (pa_atou(state->rvalue, &constant) >= 0) { + e->volume_use = PA_ALSA_VOLUME_CONSTANT; + e->constant_volume = constant; + } else { + pa_log("[%s:%u] Volume invalid of '%s'", state->filename, state->lineno, state->section); + return -1; + } + } + + return 0; +} + +static int element_parse_enumeration(pa_config_parser_state *state) { + pa_alsa_path *p; + pa_alsa_element *e; + + pa_assert(state); + + p = state->userdata; + + if (!(e = pa_alsa_element_get(p, state->section, true))) { + pa_log("[%s:%u] Enumeration makes no sense in '%s'", state->filename, state->lineno, state->section); + return -1; + } + + if (pa_streq(state->rvalue, "ignore")) + e->enumeration_use = PA_ALSA_ENUMERATION_IGNORE; + else if (pa_streq(state->rvalue, "select")) + e->enumeration_use = PA_ALSA_ENUMERATION_SELECT; + else { + pa_log("[%s:%u] Enumeration invalid of '%s'", state->filename, state->lineno, state->section); + return -1; + } + + return 0; +} + +static int parse_type(pa_config_parser_state *state) { + struct device_port_types { + const char *name; + pa_device_port_type_t type; + } device_port_types[] = { + { "unknown", PA_DEVICE_PORT_TYPE_UNKNOWN }, + { "aux", PA_DEVICE_PORT_TYPE_AUX }, + { "speaker", PA_DEVICE_PORT_TYPE_SPEAKER }, + { "headphones", PA_DEVICE_PORT_TYPE_HEADPHONES }, + { "line", PA_DEVICE_PORT_TYPE_LINE }, + { "mic", PA_DEVICE_PORT_TYPE_MIC }, + { "headset", PA_DEVICE_PORT_TYPE_HEADSET }, + { "handset", PA_DEVICE_PORT_TYPE_HANDSET }, + { "earpiece", PA_DEVICE_PORT_TYPE_EARPIECE }, + { "spdif", PA_DEVICE_PORT_TYPE_SPDIF }, + { "hdmi", PA_DEVICE_PORT_TYPE_HDMI }, + { "tv", PA_DEVICE_PORT_TYPE_TV }, + { "radio", PA_DEVICE_PORT_TYPE_RADIO }, + { "video", PA_DEVICE_PORT_TYPE_VIDEO }, + { "usb", PA_DEVICE_PORT_TYPE_USB }, + { "bluetooth", PA_DEVICE_PORT_TYPE_BLUETOOTH }, + { "portable", PA_DEVICE_PORT_TYPE_PORTABLE }, + { "handsfree", PA_DEVICE_PORT_TYPE_HANDSFREE }, + { "car", PA_DEVICE_PORT_TYPE_CAR }, + { "hifi", PA_DEVICE_PORT_TYPE_HIFI }, + { "phone", PA_DEVICE_PORT_TYPE_PHONE }, + { "network", PA_DEVICE_PORT_TYPE_NETWORK }, + { "analog", PA_DEVICE_PORT_TYPE_ANALOG }, + }; + pa_alsa_path *path; + unsigned int idx; + + path = state->userdata; + + for (idx = 0; idx < PA_ELEMENTSOF(device_port_types); idx++) + if (pa_streq(state->rvalue, device_port_types[idx].name)) { + path->device_port_type = device_port_types[idx].type; + return 0; + } + + pa_log("[%s:%u] Invalid value for option 'type': %s", state->filename, state->lineno, state->rvalue); + return -1; +} + +static int parse_eld_device(pa_config_parser_state *state) { + pa_alsa_path *path; + uint32_t eld_device; + + path = state->userdata; + + if (pa_atou(state->rvalue, &eld_device) >= 0) { + path->autodetect_eld_device = false; + path->eld_device = eld_device; + return 0; + } + + if (pa_streq(state->rvalue, "auto")) { + path->autodetect_eld_device = true; + path->eld_device = -1; + return 0; + } + + pa_log("[%s:%u] Invalid value for option 'eld-device': %s", state->filename, state->lineno, state->rvalue); + return -1; +} + +static int option_parse_priority(pa_config_parser_state *state) { + pa_alsa_path *p; + pa_alsa_option *o; + uint32_t prio; + + pa_assert(state); + + p = state->userdata; + + if (!(o = option_get(p, state->section))) { + pa_log("[%s:%u] Priority makes no sense in '%s'", state->filename, state->lineno, state->section); + return -1; + } + + if (pa_atou(state->rvalue, &prio) < 0) { + pa_log("[%s:%u] Priority invalid of '%s'", state->filename, state->lineno, state->section); + return -1; + } + + o->priority = prio; + return 0; +} + +static int option_parse_name(pa_config_parser_state *state) { + pa_alsa_path *p; + pa_alsa_option *o; + + pa_assert(state); + + p = state->userdata; + + if (!(o = option_get(p, state->section))) { + pa_log("[%s:%u] Name makes no sense in '%s'", state->filename, state->lineno, state->section); + return -1; + } + + pa_xfree(o->name); + o->name = pa_xstrdup(state->rvalue); + + return 0; +} + +static int element_parse_required(pa_config_parser_state *state) { + pa_alsa_path *p; + pa_alsa_element *e; + pa_alsa_option *o; + pa_alsa_jack *j; + pa_alsa_required_t req; + + pa_assert(state); + + p = state->userdata; + + e = pa_alsa_element_get(p, state->section, true); + o = option_get(p, state->section); + j = jack_get(p, state->section); + if (!e && !o && !j) { + pa_log("[%s:%u] Required makes no sense in '%s'", state->filename, state->lineno, state->section); + return -1; + } + + if (pa_streq(state->rvalue, "ignore")) + req = PA_ALSA_REQUIRED_IGNORE; + else if (pa_streq(state->rvalue, "switch") && e) + req = PA_ALSA_REQUIRED_SWITCH; + else if (pa_streq(state->rvalue, "volume") && e) + req = PA_ALSA_REQUIRED_VOLUME; + else if (pa_streq(state->rvalue, "enumeration")) + req = PA_ALSA_REQUIRED_ENUMERATION; + else if (pa_streq(state->rvalue, "any")) + req = PA_ALSA_REQUIRED_ANY; + else { + pa_log("[%s:%u] Required invalid of '%s'", state->filename, state->lineno, state->section); + return -1; + } + + if (pa_streq(state->lvalue, "required-absent")) { + if (e) + e->required_absent = req; + if (o) + o->required_absent = req; + if (j) + j->required_absent = req; + } + else if (pa_streq(state->lvalue, "required-any")) { + if (e) { + e->required_any = req; + e->path->has_req_any |= (req != PA_ALSA_REQUIRED_IGNORE); + } + if (o) { + o->required_any = req; + o->element->path->has_req_any |= (req != PA_ALSA_REQUIRED_IGNORE); + } + if (j) { + j->required_any = req; + j->path->has_req_any |= (req != PA_ALSA_REQUIRED_IGNORE); + } + + } + else { + if (e) + e->required = req; + if (o) + o->required = req; + if (j) + j->required = req; + } + + return 0; +} + +static int element_parse_direction(pa_config_parser_state *state) { + pa_alsa_path *p; + pa_alsa_element *e; + + pa_assert(state); + + p = state->userdata; + + if (!(e = pa_alsa_element_get(p, state->section, true))) { + pa_log("[%s:%u] Direction makes no sense in '%s'", state->filename, state->lineno, state->section); + return -1; + } + + if (pa_streq(state->rvalue, "playback")) + e->direction = PA_ALSA_DIRECTION_OUTPUT; + else if (pa_streq(state->rvalue, "capture")) + e->direction = PA_ALSA_DIRECTION_INPUT; + else { + pa_log("[%s:%u] Direction invalid of '%s'", state->filename, state->lineno, state->section); + return -1; + } + + return 0; +} + +static int element_parse_direction_try_other(pa_config_parser_state *state) { + pa_alsa_path *p; + pa_alsa_element *e; + int yes; + + pa_assert(state); + + p = state->userdata; + + if (!(e = pa_alsa_element_get(p, state->section, true))) { + pa_log("[%s:%u] Direction makes no sense in '%s'", state->filename, state->lineno, state->section); + return -1; + } + + if ((yes = pa_parse_boolean(state->rvalue)) < 0) { + pa_log("[%s:%u] Direction invalid of '%s'", state->filename, state->lineno, state->section); + return -1; + } + + e->direction_try_other = !!yes; + return 0; +} + +static int element_parse_volume_limit(pa_config_parser_state *state) { + pa_alsa_path *p; + pa_alsa_element *e; + long volume_limit; + + pa_assert(state); + + p = state->userdata; + + if (!(e = pa_alsa_element_get(p, state->section, true))) { + pa_log("[%s:%u] volume-limit makes no sense in '%s'", state->filename, state->lineno, state->section); + return -1; + } + + if (pa_atol(state->rvalue, &volume_limit) < 0 || volume_limit < 0) { + pa_log("[%s:%u] Invalid value for volume-limit", state->filename, state->lineno); + return -1; + } + + e->volume_limit = volume_limit; + return 0; +} + +static unsigned int parse_channel_position(const char *m) +{ + pa_channel_position_t p; + + if ((p = pa_channel_position_from_string(m)) == PA_CHANNEL_POSITION_INVALID) + return SND_MIXER_SCHN_UNKNOWN; + + return alsa_channel_ids[p]; +} + +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(pa_config_parser_state *state) { + pa_alsa_path *p; + pa_alsa_element *e; + const char *split_state = NULL; + char *s; + unsigned i = 0; + int channel_count = 0; + char *n; + + pa_assert(state); + + p = state->userdata; + + if (!(e = pa_alsa_element_get(p, state->section, true))) { + pa_log("[%s:%u] Override map makes no sense in '%s'", state->filename, state->lineno, state->section); + return -1; + } + + s = strstr(state->lvalue, "."); + if (s) { + pa_atoi(s + 1, &channel_count); + if (channel_count < 1 || channel_count > POSITION_MASK_CHANNELS) { + pa_log("[%s:%u] Override map index '%s' invalid in '%s'", state->filename, state->lineno, state->lvalue, state->section); + return 0; + } + } else { + pa_log("[%s:%u] Invalid override map syntax '%s' in '%s'", state->filename, state->lineno, state->lvalue, state->section); + return -1; + } + + while ((n = pa_split(state->rvalue, ",", &split_state))) { + pa_channel_position_mask_t m; + snd_mixer_selem_channel_id_t channel_position; + + if (i >= (unsigned)channel_count) { + pa_log("[%s:%u] Invalid override map size (>%d) in '%s'", state->filename, state->lineno, channel_count, state->section); + pa_xfree(n); + return -1; + } + channel_position = alsa_channel_positions[i]; + + if (!*n) + m = 0; + else { + s = strstr(n, ":"); + if (s) { + *s = '\0'; + s++; + channel_position = parse_channel_position(n); + if (channel_position == SND_MIXER_SCHN_UNKNOWN) { + pa_log("[%s:%u] Override map position '%s' invalid in '%s'", state->filename, state->lineno, n, state->section); + pa_xfree(n); + return -1; + } + } + if ((m = parse_mask(s ? s : n)) == 0) { + pa_log("[%s:%u] Override map '%s' invalid in '%s'", state->filename, state->lineno, s ? s : n, state->section); + pa_xfree(n); + return -1; + } + } + + if (e->masks[channel_position][channel_count-1]) { + pa_log("[%s:%u] Override map '%s' duplicate position '%s' in '%s'", state->filename, state->lineno, s ? s : n, snd_mixer_selem_channel_name(channel_position), state->section); + pa_xfree(n); + return -1; + } + e->override_map |= (1 << (channel_count - 1)); + e->masks[channel_position][channel_count-1] = m; + pa_xfree(n); + i++; + } + + return 0; +} + +static int jack_parse_state(pa_config_parser_state *state) { + pa_alsa_path *p; + pa_alsa_jack *j; + pa_available_t pa; + + pa_assert(state); + + p = state->userdata; + + if (!(j = jack_get(p, state->section))) { + pa_log("[%s:%u] state makes no sense in '%s'", state->filename, state->lineno, state->section); + return -1; + } + + if (pa_streq(state->rvalue, "yes")) + pa = PA_AVAILABLE_YES; + else if (pa_streq(state->rvalue, "no")) + pa = PA_AVAILABLE_NO; + else if (pa_streq(state->rvalue, "unknown")) + pa = PA_AVAILABLE_UNKNOWN; + else { + pa_log("[%s:%u] state must be 'yes', 'no' or 'unknown' in '%s'", state->filename, state->lineno, state->section); + return -1; + } + + if (pa_streq(state->lvalue, "state.unplugged")) + j->state_unplugged = pa; + else { + j->state_plugged = pa; + pa_assert(pa_streq(state->lvalue, "state.plugged")); + } + + return 0; +} + +static int jack_parse_append_pcm_to_name(pa_config_parser_state *state) { + pa_alsa_path *path; + pa_alsa_jack *jack; + int b; + + pa_assert(state); + + path = state->userdata; + if (!(jack = jack_get(path, state->section))) { + pa_log("[%s:%u] Option 'append_pcm_to_name' not expected in section '%s'", + state->filename, state->lineno, state->section); + return -1; + } + + b = pa_parse_boolean(state->rvalue); + if (b < 0) { + pa_log("[%s:%u] Invalid value for 'append_pcm_to_name': %s", state->filename, state->lineno, state->rvalue); + return -1; + } + + jack->append_pcm_to_name = b; + 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; + char buf[64]; + int r; + + pa_assert(e); + pa_assert(m); + + SELEM_INIT(sid, &e->alsa_id); + if (!(me = snd_mixer_find_selem(m, sid))) { + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_warn("Element %s seems to have disappeared.", buf); + 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_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_warn("Failed to set switch of %s: %s", buf, 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_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_warn("Failed to set enumeration of %s: %s", buf, pa_alsa_strerror(errno)); + } + } + + return r; +} + +static int 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-docking-linein", N_("Docking Station Line In") }, + { "input-linein", N_("Line In") }, + { "input-microphone", N_("Microphone") }, + { "input-microphone-front", N_("Front Microphone") }, + { "input-microphone-rear", N_("Rear 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") } + }; + char buf[64]; + + 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_alsa_mixer_id_to_string(buf, sizeof(buf), &o->element->alsa_id); + pa_log("Element %s of option %s not set for select.", buf, 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_alsa_mixer_id_to_string(buf, sizeof(buf), &o->element->alsa_id); + pa_log("Switch %s options need be named off or on ", buf); + 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; + char buf[64]; + + pa_assert(e); + +// pa_log_debug("Element %s, path %s: r=%d, r-any=%d, r-abs=%d", e->alsa_name, e->path->name, e->required, e->required_any, e->required_absent); + if ((e->required != PA_ALSA_REQUIRED_IGNORE && e->required == e->required_absent) || + (e->required_any != PA_ALSA_REQUIRED_IGNORE && e->required_any == e->required_absent) || + (e->required_absent == PA_ALSA_REQUIRED_ANY && e->required_any != PA_ALSA_REQUIRED_IGNORE) || + (e->required_absent == PA_ALSA_REQUIRED_ANY && e->required != PA_ALSA_REQUIRED_IGNORE)) { + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log("Element %s cannot be required and absent at the same time.", buf); + return -1; + } + + if (e->switch_use == PA_ALSA_SWITCH_SELECT && e->enumeration_use == PA_ALSA_ENUMERATION_SELECT) { + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log("Element %s cannot set select for both switch and enumeration.", buf); + 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 description2_map well_known_descriptions[] = { + { "analog-input", N_("Analog Input"), PA_DEVICE_PORT_TYPE_ANALOG }, + { "analog-input-microphone", N_("Microphone"), PA_DEVICE_PORT_TYPE_MIC }, + { "analog-input-microphone-front", N_("Front Microphone"), PA_DEVICE_PORT_TYPE_MIC }, + { "analog-input-microphone-rear", N_("Rear Microphone"), PA_DEVICE_PORT_TYPE_MIC }, + { "analog-input-microphone-dock", N_("Dock Microphone"), PA_DEVICE_PORT_TYPE_MIC }, + { "analog-input-microphone-internal", N_("Internal Microphone"), PA_DEVICE_PORT_TYPE_MIC }, + { "analog-input-microphone-headset", N_("Headset Microphone"), PA_DEVICE_PORT_TYPE_HEADSET }, + { "analog-input-linein", N_("Line In"), PA_DEVICE_PORT_TYPE_LINE }, + { "analog-input-radio", N_("Radio"), PA_DEVICE_PORT_TYPE_RADIO }, + { "analog-input-video", N_("Video"), PA_DEVICE_PORT_TYPE_VIDEO }, + { "analog-output", N_("Analog Output"), PA_DEVICE_PORT_TYPE_ANALOG }, + { "analog-output-headphones", N_("Headphones"), PA_DEVICE_PORT_TYPE_HEADPHONES }, + { "analog-output-headphones-2", N_("Headphones 2"), PA_DEVICE_PORT_TYPE_HEADPHONES }, + { "analog-output-headphones-mono", N_("Headphones Mono Output"), PA_DEVICE_PORT_TYPE_HEADPHONES }, + { "analog-output-lineout", N_("Line Out"), PA_DEVICE_PORT_TYPE_LINE }, + { "analog-output-mono", N_("Analog Mono Output"), PA_DEVICE_PORT_TYPE_ANALOG }, + { "analog-output-speaker", N_("Speakers"), PA_DEVICE_PORT_TYPE_SPEAKER }, + { "hdmi-output", N_("HDMI / DisplayPort"), PA_DEVICE_PORT_TYPE_HDMI }, + { "iec958-stereo-output", N_("Digital Output (S/PDIF)"), PA_DEVICE_PORT_TYPE_SPDIF }, + { "iec958-stereo-input", N_("Digital Input (S/PDIF)"), PA_DEVICE_PORT_TYPE_SPDIF }, + { "multichannel-input", N_("Multichannel Input"), PA_DEVICE_PORT_TYPE_LINE }, + { "multichannel-output", N_("Multichannel Output"), PA_DEVICE_PORT_TYPE_LINE }, + { "steelseries-arctis-output-game-common", N_("Game Output"), PA_DEVICE_PORT_TYPE_HEADSET }, + { "steelseries-arctis-output-chat-common", N_("Chat Output"), PA_DEVICE_PORT_TYPE_HEADSET }, + { "analog-chat-output", N_("Chat Output"), PA_DEVICE_PORT_TYPE_HEADSET }, + { "analog-chat-input", N_("Chat Input"), PA_DEVICE_PORT_TYPE_HEADSET }, + { "virtual-surround-7.1", N_("Virtual Surround 7.1"), PA_DEVICE_PORT_TYPE_HEADPHONES }, + }; + + pa_alsa_element *e; + const char *key = p->description_key ? p->description_key : p->name; + const struct description2_map *map = lookup_description2(key, + well_known_descriptions, + PA_ELEMENTSOF(well_known_descriptions)); + + pa_assert(p); + + PA_LLIST_FOREACH(e, p->elements) + if (element_verify(e) < 0) + return -1; + + if (map) { + if (p->device_port_type == PA_DEVICE_PORT_TYPE_UNKNOWN) + p->device_port_type = map->type; + if (!p->description) + p->description = pa_xstrdup(_(map->description)); + } + + if (!p->description) { + if (p->description_key) + pa_log_warn("Path %s: Unrecognized description key: %s", p->name, p->description_key); + + p->description = pa_xstrdup(p->name); + } + + return 0; +} + +static const char *get_default_paths_dir(void) { + const char *str; +#ifdef HAVE_RUNNING_FROM_BUILD_TREE + if (pa_run_from_build_tree()) + return PA_SRCDIR "mixer/paths"; + else +#endif + if (getenv("ACP_BUILDDIR") != NULL) + return "mixer/paths"; + if ((str = getenv("ACP_PATHS_DIR")) != NULL) + return str; + return PA_ALSA_PATHS_DIR; +} + +pa_alsa_path* pa_alsa_path_new(const char *paths_dir, const char *fname, pa_alsa_direction_t direction) { + pa_alsa_path *p; + char *fn; + int r; + const char *n; + bool mute_during_activation = false; + + pa_config_item items[] = { + /* [General] */ + { "priority", pa_config_parse_unsigned, NULL, "General" }, + { "description-key", pa_config_parse_string, NULL, "General" }, + { "description", pa_config_parse_string, NULL, "General" }, + { "mute-during-activation", pa_config_parse_bool, NULL, "General" }, + { "type", parse_type, NULL, "General" }, + { "eld-device", parse_eld_device, NULL, "General" }, + + /* [Option ...] */ + { "priority", option_parse_priority, NULL, NULL }, + { "name", option_parse_name, NULL, NULL }, + + /* [Jack ...] */ + { "state.plugged", jack_parse_state, NULL, NULL }, + { "state.unplugged", jack_parse_state, NULL, NULL }, + { "append-pcm-to-name", jack_parse_append_pcm_to_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 }, + { "override-map.3", element_parse_override_map, NULL, NULL }, + { "override-map.4", element_parse_override_map, NULL, NULL }, + { "override-map.5", element_parse_override_map, NULL, NULL }, + { "override-map.6", element_parse_override_map, NULL, NULL }, + { "override-map.7", element_parse_override_map, NULL, NULL }, + { "override-map.8", element_parse_override_map, NULL, NULL }, +#if POSITION_MASK_CHANNELS > 8 +#error "Add override-map.9+ definitions" +#endif + /* ... later on we might add override-map.3 and so on here ... */ + { "required", element_parse_required, NULL, NULL }, + { "required-any", 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 }, + { "volume-limit", element_parse_volume_limit, 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->proplist = pa_proplist_new(); + p->direction = direction; + p->eld_device = -1; + + items[0].data = &p->priority; + items[1].data = &p->description_key; + items[2].data = &p->description; + items[3].data = &mute_during_activation; + + if (!paths_dir) + paths_dir = get_default_paths_dir(); + + fn = pa_maybe_prefix_path(fname, paths_dir); + + r = pa_config_parse(fn, NULL, items, p->proplist, false, p); + pa_xfree(fn); + + if (r < 0) + goto fail; + + p->mute_during_activation = mute_during_activation; + + if (path_verify(p) < 0) + goto fail; + + if (p->description) { + char *tmp = p->description; + p->description = pa_xstrdup(_(tmp)); + free(tmp); + } + + 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; + char *name; + int index; + + pa_assert(element); + + name = alloca(strlen(element) + 1); + if (alsa_id_decode(element, name, &index)) + return NULL; + + p = pa_xnew0(pa_alsa_path, 1); + p->name = pa_xstrdup(element); + p->direction = direction; + p->proplist = pa_proplist_new(); + + e = pa_xnew0(pa_alsa_element, 1); + e->path = p; + e->alsa_id.name = pa_xstrdup(name); + e->alsa_id.index = index; + e->direction = direction; + e->volume_limit = -1; + + e->switch_use = PA_ALSA_SWITCH_MUTE; + e->volume_use = PA_ALSA_VOLUME_MERGE; + + PA_LLIST_PREPEND(pa_alsa_element, p->elements, e); + p->last_element = e; + return p; +} + +static bool 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 bool 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, NULL); + 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, pa_alsa_mapping *mapping, snd_mixer_t *m, bool ignore_dB) { + pa_alsa_element *e; + pa_alsa_jack *j; + double min_dB[PA_CHANNEL_POSITION_MAX], max_dB[PA_CHANNEL_POSITION_MAX]; + pa_channel_position_t t; + pa_channel_position_mask_t path_volume_channels = 0; + bool min_dB_set, max_dB_set; + char buf[64]; + + pa_assert(p); + pa_assert(m); + + if (p->probed) + return p->supported ? 0 : -1; + p->probed = true; + + pa_zero(min_dB); + pa_zero(max_dB); + + pa_log_debug("Probing path '%s'", p->name); + + PA_LLIST_FOREACH(j, p->jacks) { + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &j->alsa_id); + if (jack_probe(j, mapping, m) < 0) { + p->supported = false; + pa_log_debug("Probe of jack %s failed.", buf); + return -1; + } + pa_log_debug("Probe of jack %s succeeded (%s)", buf, j->has_control ? "found!" : "not found"); + } + + PA_LLIST_FOREACH(e, p->elements) { + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + if (element_probe(e, m) < 0) { + p->supported = false; + pa_log_debug("Probe of element %s failed.", buf); + return -1; + } + pa_log_debug("Probe of element %s succeeded (volume=%d, switch=%d, enumeration=%d, has_dB=%d).", buf, e->volume_use, e->switch_use, e->enumeration_use, e->has_dB); + + 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; + path_volume_channels |= PA_CHANNEL_POSITION_MASK(t); + } + + 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; + path_volume_channels |= PA_CHANNEL_POSITION_MASK(t); + } + } 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; + pa_log_info("Zeroing volume of %s on path '%s'", buf, p->name); + } + } + } else if (p->has_volume) { + /* We can't use this volume, so let's ignore it */ + e->volume_use = PA_ALSA_VOLUME_IGNORE; + pa_log_info("Ignoring volume of %s on path '%s' (missing dB info)", buf, p->name); + } + p->has_volume = true; + } + + if (e->switch_use == PA_ALSA_SWITCH_MUTE) + p->has_mute = true; + } + + if (p->has_req_any && !p->req_any_present) { + p->supported = false; + pa_log_debug("Skipping path '%s', none of required-any elements preset.", p->name); + return -1; + } + + path_drop_unsupported(p); + path_make_options_unique(p); + path_create_settings(p); + + p->supported = true; + + p->min_dB = INFINITY; + min_dB_set = false; + p->max_dB = -INFINITY; + max_dB_set = false; + + for (t = 0; t < PA_CHANNEL_POSITION_MAX; t++) { + if (path_volume_channels & PA_CHANNEL_POSITION_MASK(t)) { + if (p->min_dB > min_dB[t]) { + p->min_dB = min_dB[t]; + min_dB_set = true; + } + + if (p->max_dB < max_dB[t]) { + p->max_dB = max_dB[t]; + max_dB_set = true; + } + } + } + + /* this is probably a wrong prediction, but it should be safe */ + if (!min_dB_set) + p->min_dB = -INFINITY; + if (!max_dB_set) + p->max_dB = 0; + + 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_jack_dump(pa_alsa_jack *j) { + pa_assert(j); + + pa_log_debug("Jack %s, alsa_name='%s', index='%d', detection %s", j->name, j->alsa_id.name, j->alsa_id.index, j->has_control ? "possible" : "unavailable"); +} + +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) { + char buf[64]; + + pa_alsa_option *o; + pa_assert(e); + + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_debug("Element %s, direction=%i, switch=%i, volume=%i, volume_limit=%li, enumeration=%i, required=%i, required_any=%i, required_absent=%i, mask=0x%llx, n_channels=%u, override_map=%02x", + buf, + e->direction, + e->switch_use, + e->volume_use, + e->volume_limit, + e->enumeration_use, + e->required, + e->required_any, + e->required_absent, + (long long unsigned) e->merged_mask, + e->n_channels, + 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_jack *j; + 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(j, p->jacks) + pa_alsa_jack_dump(j); + + 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; + char buf[64]; + + pa_assert(e); + pa_assert(m); + pa_assert(cb); + + SELEM_INIT(sid, &e->alsa_id); + if (!(me = snd_mixer_find_selem(m, sid))) { + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &e->alsa_id); + pa_log_warn("Element %s seems to have disappeared.", buf); + 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; + void *state; + + pa_assert(ps); + pa_assert(m); + pa_assert(cb); + + PA_HASHMAP_FOREACH(p, ps->paths, state) + pa_alsa_path_set_callback(p, m, cb, userdata); +} + +static pa_alsa_path *profile_set_get_path(pa_alsa_profile_set *ps, const char *path_name) { + pa_alsa_path *path; + + pa_assert(ps); + pa_assert(path_name); + + if ((path = pa_hashmap_get(ps->output_paths, path_name))) + return path; + + return pa_hashmap_get(ps->input_paths, path_name); +} + +static void profile_set_add_path(pa_alsa_profile_set *ps, pa_alsa_path *path) { + pa_assert(ps); + pa_assert(path); + + switch (path->direction) { + case PA_ALSA_DIRECTION_OUTPUT: + pa_assert_se(pa_hashmap_put(ps->output_paths, path->name, path) >= 0); + break; + + case PA_ALSA_DIRECTION_INPUT: + pa_assert_se(pa_hashmap_put(ps->input_paths, path->name, path) >= 0); + break; + + default: + pa_assert_not_reached(); + } +} + +pa_alsa_path_set *pa_alsa_path_set_new(pa_alsa_mapping *m, pa_alsa_direction_t direction, const char *paths_dir) { + pa_alsa_path_set *ps; + char **pn = NULL, **en = NULL, **ie; + pa_alsa_decibel_fix *db_fix; + void *state, *state2; + char name[64]; + int index; + + pa_assert(m); + pa_assert(m->profile_set); + pa_assert(m->profile_set->decibel_fixes); + 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; + ps->paths = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func); + + if (direction == PA_ALSA_DIRECTION_OUTPUT) + pn = m->output_path_names; + else + pn = m->input_path_names; + + if (pn) { + char **in; + + for (in = pn; *in; in++) { + pa_alsa_path *p = NULL; + bool duplicate = false; + char **kn; + + for (kn = pn; kn < in; kn++) + if (pa_streq(*kn, *in)) { + duplicate = true; + break; + } + + if (duplicate) + continue; + + p = profile_set_get_path(m->profile_set, *in); + + if (p && p->direction != direction) { + pa_log("Configuration error: Path %s is used both as an input and as an output path.", p->name); + goto fail; + } + + if (!p) { + char *fn = pa_sprintf_malloc("%s.conf", *in); + p = pa_alsa_path_new(paths_dir, fn, direction); + pa_xfree(fn); + if (p) + profile_set_add_path(m->profile_set, p); + } + + if (p) + pa_hashmap_put(ps->paths, p, p); + + } + + goto finish; + } + + if (direction == PA_ALSA_DIRECTION_OUTPUT) + en = m->output_element; + else + en = m->input_element; + + if (!en) + goto fail; + + for (ie = en; *ie; ie++) { + char **je; + pa_alsa_path *p; + + p = pa_alsa_path_synthesize(*ie, direction); + + /* Mark all other passed elements for require-absent */ + for (je = en; *je; je++) { + pa_alsa_element *e; + + if (je == ie) + continue; + + if (strlen(*je) + 1 >= sizeof(name)) { + pa_log("Element identifier %s is too long!", *je); + continue; + } + + if (alsa_id_decode(*je, name, &index)) + continue; + + e = pa_xnew0(pa_alsa_element, 1); + e->path = p; + e->alsa_id.name = pa_xstrdup(name); + e->alsa_id.index = index; + e->direction = direction; + e->required_absent = PA_ALSA_REQUIRED_ANY; + e->volume_limit = -1; + + PA_LLIST_INSERT_AFTER(pa_alsa_element, p->elements, p->last_element, e); + p->last_element = e; + } + + pa_hashmap_put(ps->paths, *ie, p); + } + +finish: + /* Assign decibel fixes to elements. */ + PA_HASHMAP_FOREACH(db_fix, m->profile_set->decibel_fixes, state) { + pa_alsa_path *p; + + PA_HASHMAP_FOREACH(p, ps->paths, state2) { + pa_alsa_element *e; + + PA_LLIST_FOREACH(e, p->elements) { + if (e->volume_use != PA_ALSA_VOLUME_IGNORE && pa_streq(db_fix->name, e->alsa_id.name) && + db_fix->index == e->alsa_id.index) { + /* The profile set that contains the dB fix may be freed + * before the element, so we have to copy the dB fix + * object. */ + e->db_fix = pa_xnewdup(pa_alsa_decibel_fix, db_fix, 1); + e->db_fix->profile_set = NULL; + e->db_fix->key = pa_xstrdup(db_fix->key); + e->db_fix->name = pa_xstrdup(db_fix->name); + e->db_fix->db_values = pa_xmemdup(db_fix->db_values, (db_fix->max_step - db_fix->min_step + 1) * sizeof(long)); + } + } + } + } + + return ps; + +fail: + if (ps) + pa_alsa_path_set_free(ps); + + return NULL; +} + +void pa_alsa_path_set_dump(pa_alsa_path_set *ps) { + pa_alsa_path *p; + void *state; + pa_assert(ps); + + pa_log_debug("Path Set %p, direction=%i", + (void*) ps, + ps->direction); + + PA_HASHMAP_FOREACH(p, ps->paths, state) + pa_alsa_path_dump(p); +} + +static bool options_have_option(pa_alsa_option *options, const char *alsa_name) { + pa_alsa_option *o; + + pa_assert(options); + pa_assert(alsa_name); + + PA_LLIST_FOREACH(o, options) { + if (pa_streq(o->alsa_name, alsa_name)) + return true; + } + return false; +} + +static bool enumeration_is_subset(pa_alsa_option *a_options, pa_alsa_option *b_options) { + pa_alsa_option *oa, *ob; + + if (!a_options) return true; + if (!b_options) return false; + + /* If there is an option A offers that B does not, then A is not a subset of B. */ + PA_LLIST_FOREACH(oa, a_options) { + bool found = false; + PA_LLIST_FOREACH(ob, b_options) { + if (pa_streq(oa->alsa_name, ob->alsa_name)) { + found = true; + break; + } + } + if (!found) + return false; + } + return true; +} + +/** + * Compares two elements to see if a is a subset of b + */ +static bool element_is_subset(pa_alsa_element *a, pa_alsa_element *b, snd_mixer_t *m) { + char buf[64]; + + pa_assert(a); + pa_assert(b); + pa_assert(m); + + /* General rules: + * Every state is a subset of itself (with caveats for volume_limits and options) + * IGNORE is a subset of every other state */ + + /* Check the volume_use */ + if (a->volume_use != PA_ALSA_VOLUME_IGNORE) { + + /* "Constant" is subset of "Constant" only when their constant values are equal */ + if (a->volume_use == PA_ALSA_VOLUME_CONSTANT && b->volume_use == PA_ALSA_VOLUME_CONSTANT && a->constant_volume != b->constant_volume) + return false; + + /* Different volume uses when b is not "Merge" means we are definitely not a subset */ + if (a->volume_use != b->volume_use && b->volume_use != PA_ALSA_VOLUME_MERGE) + return false; + + /* "Constant" is a subset of "Merge", if there is not a "volume-limit" in "Merge" below the actual constant. + * "Zero" and "Off" are just special cases of "Constant" when comparing to "Merge" + * "Merge" with a "volume-limit" is a subset of "Merge" without a "volume-limit" or with a higher "volume-limit" */ + if (b->volume_use == PA_ALSA_VOLUME_MERGE && b->volume_limit >= 0) { + long a_limit; + + if (a->volume_use == PA_ALSA_VOLUME_CONSTANT) + a_limit = a->constant_volume; + else if (a->volume_use == PA_ALSA_VOLUME_ZERO) { + long dB = 0; + + if (a->db_fix) { + int rounding = (a->direction == PA_ALSA_DIRECTION_OUTPUT ? +1 : -1); + a_limit = decibel_fix_get_step(a->db_fix, &dB, rounding); + } else { + snd_mixer_selem_id_t *sid; + snd_mixer_elem_t *me; + + SELEM_INIT(sid, &a->alsa_id); + if (!(me = snd_mixer_find_selem(m, sid))) { + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &a->alsa_id); + pa_log_warn("Element %s seems to have disappeared.", buf); + return false; + } + + if (a->direction == PA_ALSA_DIRECTION_OUTPUT) { + if (snd_mixer_selem_ask_playback_dB_vol(me, dB, +1, &a_limit) < 0) + return false; + } else { + if (snd_mixer_selem_ask_capture_dB_vol(me, dB, -1, &a_limit) < 0) + return false; + } + } + } else if (a->volume_use == PA_ALSA_VOLUME_OFF) + a_limit = a->min_volume; + else if (a->volume_use == PA_ALSA_VOLUME_MERGE) + a_limit = a->volume_limit; + else + pa_assert_not_reached(); + + if (a_limit > b->volume_limit) + return false; + } + + if (a->volume_use == PA_ALSA_VOLUME_MERGE) { + int s; + /* If override-maps are different, they're not subsets */ + if (a->n_channels != b->n_channels) + return false; + for (s = 0; s <= SND_MIXER_SCHN_LAST; s++) + if (a->masks[s][a->n_channels-1] != b->masks[s][b->n_channels-1]) { + pa_alsa_mixer_id_to_string(buf, sizeof(buf), &a->alsa_id); + pa_log_debug("Element %s is not a subset - mask a: 0x%" PRIx64 ", mask b: 0x%" PRIx64 ", at channel %d", + buf, a->masks[s][a->n_channels-1], b->masks[s][b->n_channels-1], s); + return false; + } + } + } + + if (a->switch_use != PA_ALSA_SWITCH_IGNORE) { + /* "On" is a subset of "Mute". + * "Off" is a subset of "Mute". + * "On" is a subset of "Select", if there is an "Option:On" in B. + * "Off" is a subset of "Select", if there is an "Option:Off" in B. + * "Select" is a subset of "Select", if they have the same options (is this always true?). */ + + if (a->switch_use != b->switch_use) { + + if (a->switch_use == PA_ALSA_SWITCH_SELECT || a->switch_use == PA_ALSA_SWITCH_MUTE + || b->switch_use == PA_ALSA_SWITCH_OFF || b->switch_use == PA_ALSA_SWITCH_ON) + return false; + + if (b->switch_use == PA_ALSA_SWITCH_SELECT) { + if (a->switch_use == PA_ALSA_SWITCH_ON) { + if (!options_have_option(b->options, "on")) + return false; + } else if (a->switch_use == PA_ALSA_SWITCH_OFF) { + if (!options_have_option(b->options, "off")) + return false; + } + } + } else if (a->switch_use == PA_ALSA_SWITCH_SELECT) { + if (!enumeration_is_subset(a->options, b->options)) + return false; + } + } + + if (a->enumeration_use != PA_ALSA_ENUMERATION_IGNORE) { + if (b->enumeration_use == PA_ALSA_ENUMERATION_IGNORE) + return false; + if (!enumeration_is_subset(a->options, b->options)) + return false; + } + + return true; +} + +static void path_set_condense(pa_alsa_path_set *ps, snd_mixer_t *m) { + pa_alsa_path *p; + void *state; + + pa_assert(ps); + pa_assert(m); + + /* If we only have one path, then don't bother */ + if (pa_hashmap_size(ps->paths) < 2) + return; + + PA_HASHMAP_FOREACH(p, ps->paths, state) { + pa_alsa_path *p2; + void *state2; + + PA_HASHMAP_FOREACH(p2, ps->paths, state2) { + pa_alsa_element *ea, *eb; + pa_alsa_jack *ja, *jb; + bool is_subset = true; + + if (p == p2) + continue; + + /* If a has a jack that b does not have, a is not a subset */ + PA_LLIST_FOREACH(ja, p->jacks) { + bool exists = false; + + if (!ja->has_control) + continue; + + PA_LLIST_FOREACH(jb, p2->jacks) { + if (jb->has_control && pa_streq(ja->alsa_id.name, jb->alsa_id.name) && + (ja->alsa_id.index == jb->alsa_id.index) && + (ja->state_plugged == jb->state_plugged) && + (ja->state_unplugged == jb->state_unplugged)) { + exists = true; + break; + } + } + + if (!exists) { + is_subset = false; + break; + } + } + + /* Compare the elements of each set... */ + PA_LLIST_FOREACH(ea, p->elements) { + bool found_matching_element = false; + + if (!is_subset) + break; + + PA_LLIST_FOREACH(eb, p2->elements) { + if (pa_streq(ea->alsa_id.name, eb->alsa_id.name) && + ea->alsa_id.index == eb->alsa_id.index) { + found_matching_element = true; + is_subset = element_is_subset(ea, eb, m); + break; + } + } + + if (!found_matching_element) + is_subset = false; + } + + if (is_subset) { + pa_log_debug("Removing path '%s' as it is a subset of '%s'.", p->name, p2->name); + pa_hashmap_remove(ps->paths, p); + break; + } + } + } +} + +static pa_alsa_path* path_set_find_path_by_description(pa_alsa_path_set *ps, const char* description, pa_alsa_path *ignore) { + pa_alsa_path* p; + void *state; + + PA_HASHMAP_FOREACH(p, ps->paths, state) + if (p != ignore && pa_streq(p->description, description)) + return p; + + return NULL; +} + +static void path_set_make_path_descriptions_unique(pa_alsa_path_set *ps) { + pa_alsa_path *p, *q; + void *state, *state2; + + PA_HASHMAP_FOREACH(p, ps->paths, state) { + unsigned i; + char *old_description; + + q = path_set_find_path_by_description(ps, p->description, p); + + if (!q) + continue; + + old_description = pa_xstrdup(p->description); + + /* OK, this description is not unique, hence let's rename */ + i = 1; + PA_HASHMAP_FOREACH(q, ps->paths, state2) { + char *new_description; + + if (!pa_streq(q->description, old_description)) + continue; + + new_description = pa_sprintf_malloc("%s %u", q->description, i); + pa_xfree(q->description); + q->description = new_description; + + i++; + } + + pa_xfree(old_description); + } +} + +void pa_alsa_mapping_free(pa_alsa_mapping *m) { + pa_assert(m); + + pa_xfree(m->name); + pa_xfree(m->description); + pa_xfree(m->description_key); + + pa_proplist_free(m->proplist); + + 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); + if (m->input_path_set) + pa_alsa_path_set_free(m->input_path_set); + if (m->output_path_set) + pa_alsa_path_set_free(m->output_path_set); + + pa_proplist_free(m->input_proplist); + pa_proplist_free(m->output_proplist); + + pa_assert(!m->input_pcm); + pa_assert(!m->output_pcm); + + pa_alsa_ucm_mapping_context_free(&m->ucm_context); + + pa_xfree(m); +} + +void pa_alsa_profile_free(pa_alsa_profile *p) { + pa_assert(p); + + pa_xfree(p->name); + pa_xfree(p->description); + pa_xfree(p->description_key); + pa_xfree(p->input_name); + pa_xfree(p->output_name); + + pa_xstrfreev(p->input_mapping_names); + pa_xstrfreev(p->output_mapping_names); + + if (p->input_mappings) + pa_idxset_free(p->input_mappings, NULL); + + if (p->output_mappings) + pa_idxset_free(p->output_mappings, NULL); + + pa_xfree(p); +} + +void pa_alsa_profile_set_free(pa_alsa_profile_set *ps) { + pa_assert(ps); + + if (ps->input_paths) + pa_hashmap_free(ps->input_paths); + + if (ps->output_paths) + pa_hashmap_free(ps->output_paths); + + if (ps->profiles) + pa_hashmap_free(ps->profiles); + + if (ps->mappings) + pa_hashmap_free(ps->mappings); + + if (ps->decibel_fixes) + pa_hashmap_free(ps->decibel_fixes); + + pa_xfree(ps); +} + +pa_alsa_mapping *pa_alsa_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->exact_channels = true; + m->name = pa_xstrdup(name); + pa_sample_spec_init(&m->sample_spec); + pa_channel_map_init(&m->channel_map); + m->proplist = pa_proplist_new(); + m->hw_device_index = -1; + m->input_proplist = pa_proplist_new(); + m->output_proplist = pa_proplist_new(); + + 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 pa_alsa_decibel_fix *decibel_fix_get(pa_alsa_profile_set *ps, const char *alsa_id) { + pa_alsa_decibel_fix *db_fix; + char *name; + int index; + + if (!pa_startswith(alsa_id, "DecibelFix ")) + return NULL; + + alsa_id += 11; + + if ((db_fix = pa_hashmap_get(ps->decibel_fixes, alsa_id))) + return db_fix; + + name = alloca(strlen(alsa_id) + 1); + if (alsa_id_decode(alsa_id, name, &index)) + return NULL; + + db_fix = pa_xnew0(pa_alsa_decibel_fix, 1); + db_fix->profile_set = ps; + db_fix->name = pa_xstrdup(name); + db_fix->index = index; + db_fix->key = pa_xstrdup(alsa_id); + + pa_hashmap_put(ps->decibel_fixes, db_fix->key, db_fix); + + return db_fix; +} + +static int mapping_parse_device_strings(pa_config_parser_state *state) { + pa_alsa_profile_set *ps; + pa_alsa_mapping *m; + + pa_assert(state); + + ps = state->userdata; + + if (!(m = pa_alsa_mapping_get(ps, state->section))) { + pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section); + return -1; + } + + pa_xstrfreev(m->device_strings); + if (!(m->device_strings = pa_split_spaces_strv(state->rvalue))) { + pa_log("[%s:%u] Device string list empty of '%s'", state->filename, state->lineno, state->section); + return -1; + } + + return 0; +} + +static int mapping_parse_channel_map(pa_config_parser_state *state) { + pa_alsa_profile_set *ps; + pa_alsa_mapping *m; + + pa_assert(state); + + ps = state->userdata; + + if (!(m = pa_alsa_mapping_get(ps, state->section))) { + pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section); + return -1; + } + + if (!(pa_channel_map_parse(&m->channel_map, state->rvalue))) { + pa_log("[%s:%u] Channel map invalid of '%s'", state->filename, state->lineno, state->section); + return -1; + } + + return 0; +} + +static int mapping_parse_paths(pa_config_parser_state *state) { + pa_alsa_profile_set *ps; + pa_alsa_mapping *m; + + pa_assert(state); + + ps = state->userdata; + + if (!(m = pa_alsa_mapping_get(ps, state->section))) { + pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section); + return -1; + } + + if (pa_streq(state->lvalue, "paths-input")) { + pa_xstrfreev(m->input_path_names); + m->input_path_names = pa_split_spaces_strv(state->rvalue); + } else { + pa_xstrfreev(m->output_path_names); + m->output_path_names = pa_split_spaces_strv(state->rvalue); + } + + return 0; +} + +static int mapping_parse_exact_channels(pa_config_parser_state *state) { + pa_alsa_profile_set *ps; + pa_alsa_mapping *m; + int b; + + pa_assert(state); + + ps = state->userdata; + + if (!(m = pa_alsa_mapping_get(ps, state->section))) { + pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section); + return -1; + } + + if ((b = pa_parse_boolean(state->rvalue)) < 0) { + pa_log("[%s:%u] %s has invalid value '%s'", state->filename, state->lineno, state->lvalue, state->section); + return -1; + } + + m->exact_channels = b; + + return 0; +} + +static int mapping_parse_element(pa_config_parser_state *state) { + pa_alsa_profile_set *ps; + pa_alsa_mapping *m; + + pa_assert(state); + + ps = state->userdata; + + if (!(m = pa_alsa_mapping_get(ps, state->section))) { + pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section); + return -1; + } + + if (pa_streq(state->lvalue, "element-input")) { + pa_xstrfreev(m->input_element); + m->input_element = pa_split_spaces_strv(state->rvalue); + } else { + pa_xstrfreev(m->output_element); + m->output_element = pa_split_spaces_strv(state->rvalue); + } + + return 0; +} + +static int mapping_parse_direction(pa_config_parser_state *state) { + pa_alsa_profile_set *ps; + pa_alsa_mapping *m; + + pa_assert(state); + + ps = state->userdata; + + if (!(m = pa_alsa_mapping_get(ps, state->section))) { + pa_log("[%s:%u] Section name %s invalid.", state->filename, state->lineno, state->section); + return -1; + } + + if (pa_streq(state->rvalue, "input")) + m->direction = PA_ALSA_DIRECTION_INPUT; + else if (pa_streq(state->rvalue, "output")) + m->direction = PA_ALSA_DIRECTION_OUTPUT; + else if (pa_streq(state->rvalue, "any")) + m->direction = PA_ALSA_DIRECTION_ANY; + else { + pa_log("[%s:%u] Direction %s invalid.", state->filename, state->lineno, state->rvalue); + return -1; + } + + return 0; +} + +static int mapping_parse_description(pa_config_parser_state *state) { + pa_alsa_profile_set *ps; + pa_alsa_profile *p; + pa_alsa_mapping *m; + + pa_assert(state); + + ps = state->userdata; + + if ((m = pa_alsa_mapping_get(ps, state->section))) { + pa_xfree(m->description); + m->description = pa_xstrdup(_(state->rvalue)); + } else if ((p = profile_get(ps, state->section))) { + pa_xfree(p->description); + p->description = pa_xstrdup(_(state->rvalue)); + } else { + pa_log("[%s:%u] Section name %s invalid.", state->filename, state->lineno, state->section); + return -1; + } + + return 0; +} + +static int mapping_parse_description_key(pa_config_parser_state *state) { + pa_alsa_profile_set *ps; + pa_alsa_profile *p; + pa_alsa_mapping *m; + + pa_assert(state); + + ps = state->userdata; + + if ((m = pa_alsa_mapping_get(ps, state->section))) { + pa_xfree(m->description_key); + m->description_key = pa_xstrdup(state->rvalue); + } else if ((p = profile_get(ps, state->section))) { + pa_xfree(p->description_key); + p->description_key = pa_xstrdup(state->rvalue); + } else { + pa_log("[%s:%u] Section name %s invalid.", state->filename, state->lineno, state->section); + return -1; + } + + return 0; +} + + +static int mapping_parse_priority(pa_config_parser_state *state) { + pa_alsa_profile_set *ps; + pa_alsa_profile *p; + pa_alsa_mapping *m; + uint32_t prio; + + pa_assert(state); + + ps = state->userdata; + + if (pa_atou(state->rvalue, &prio) < 0) { + pa_log("[%s:%u] Priority invalid of '%s'", state->filename, state->lineno, state->section); + return -1; + } + + if ((m = pa_alsa_mapping_get(ps, state->section))) + m->priority = prio; + else if ((p = profile_get(ps, state->section))) + p->priority = prio; + else { + pa_log("[%s:%u] Section name %s invalid.", state->filename, state->lineno, state->section); + return -1; + } + + return 0; +} + +static int mapping_parse_fallback(pa_config_parser_state *state) { + pa_alsa_profile_set *ps; + pa_alsa_profile *p; + pa_alsa_mapping *m; + int k; + + pa_assert(state); + + ps = state->userdata; + + if ((k = pa_parse_boolean(state->rvalue)) < 0) { + pa_log("[%s:%u] Fallback invalid of '%s'", state->filename, state->lineno, state->section); + return -1; + } + + if ((m = pa_alsa_mapping_get(ps, state->section))) + m->fallback = k; + else if ((p = profile_get(ps, state->section))) + p->fallback_input = p->fallback_output = k; + else { + pa_log("[%s:%u] Section name %s invalid.", state->filename, state->lineno, state->section); + return -1; + } + + return 0; +} + +static int mapping_parse_intended_roles(pa_config_parser_state *state) { + pa_alsa_profile_set *ps; + pa_alsa_mapping *m; + + pa_assert(state); + + ps = state->userdata; + + if (!(m = pa_alsa_mapping_get(ps, state->section))) { + pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section); + return -1; + } + + pa_proplist_sets(m->proplist, PA_PROP_DEVICE_INTENDED_ROLES, state->rvalue); + + return 0; +} + + +static int profile_parse_mappings(pa_config_parser_state *state) { + pa_alsa_profile_set *ps; + pa_alsa_profile *p; + + pa_assert(state); + + ps = state->userdata; + + if (!(p = profile_get(ps, state->section))) { + pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section); + return -1; + } + + if (pa_streq(state->lvalue, "input-mappings")) { + pa_xstrfreev(p->input_mapping_names); + p->input_mapping_names = pa_split_spaces_strv(state->rvalue); + } else { + pa_xstrfreev(p->output_mapping_names); + p->output_mapping_names = pa_split_spaces_strv(state->rvalue); + } + + return 0; +} + +static int profile_parse_skip_probe(pa_config_parser_state *state) { + pa_alsa_profile_set *ps; + pa_alsa_profile *p; + int b; + + pa_assert(state); + + ps = state->userdata; + + if (!(p = profile_get(ps, state->section))) { + pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section); + return -1; + } + + if ((b = pa_parse_boolean(state->rvalue)) < 0) { + pa_log("[%s:%u] Skip probe invalid of '%s'", state->filename, state->lineno, state->section); + return -1; + } + + p->supported = b; + + return 0; +} + +static int decibel_fix_parse_db_values(pa_config_parser_state *state) { + pa_alsa_profile_set *ps; + pa_alsa_decibel_fix *db_fix; + char **items; + char *item; + long *db_values; + unsigned n = 8; /* Current size of the db_values table. */ + unsigned min_step = 0; + unsigned max_step = 0; + unsigned i = 0; /* Index to the items table. */ + unsigned prev_step = 0; + double prev_db = 0; + + pa_assert(state); + + ps = state->userdata; + + if (!(db_fix = decibel_fix_get(ps, state->section))) { + pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section); + return -1; + } + + if (!(items = pa_split_spaces_strv(state->rvalue))) { + pa_log("[%s:%u] Value missing", state->filename, state->lineno); + return -1; + } + + db_values = pa_xnew(long, n); + + while ((item = items[i++])) { + char *s = item; /* Step value string. */ + char *d = item; /* dB value string. */ + uint32_t step; + double db; + + /* Move d forward until it points to a colon or to the end of the item. */ + for (; *d && *d != ':'; ++d); + + if (d == s) { + /* item started with colon. */ + pa_log("[%s:%u] No step value found in %s", state->filename, state->lineno, item); + goto fail; + } + + if (!*d || !*(d + 1)) { + /* No colon found, or it was the last character in item. */ + pa_log("[%s:%u] No dB value found in %s", state->filename, state->lineno, item); + goto fail; + } + + /* pa_atou() needs a null-terminating string. Let's replace the colon + * with a zero byte. */ + *d++ = '\0'; + + if (pa_atou(s, &step) < 0) { + pa_log("[%s:%u] Invalid step value: %s", state->filename, state->lineno, s); + goto fail; + } + + if (pa_atod(d, &db) < 0) { + pa_log("[%s:%u] Invalid dB value: %s", state->filename, state->lineno, d); + goto fail; + } + + if (step <= prev_step && i != 1) { + pa_log("[%s:%u] Step value %u not greater than the previous value %u", state->filename, state->lineno, step, prev_step); + goto fail; + } + + if (db < prev_db && i != 1) { + pa_log("[%s:%u] Decibel value %0.2f less than the previous value %0.2f", state->filename, state->lineno, db, prev_db); + goto fail; + } + + if (i == 1) { + min_step = step; + db_values[0] = (long) (db * 100.0); + prev_step = step; + prev_db = db; + } else { + /* Interpolate linearly. */ + double db_increment = (db - prev_db) / (step - prev_step); + + for (; prev_step < step; ++prev_step, prev_db += db_increment) { + + /* Reallocate the db_values table if it's about to overflow. */ + if (prev_step + 1 - min_step == n) { + n *= 2; + db_values = pa_xrenew(long, db_values, n); + } + + db_values[prev_step + 1 - min_step] = (long) ((prev_db + db_increment) * 100.0); + } + } + + max_step = step; + } + + db_fix->min_step = min_step; + db_fix->max_step = max_step; + pa_xfree(db_fix->db_values); + db_fix->db_values = db_values; + + pa_xstrfreev(items); + + return 0; + +fail: + pa_xstrfreev(items); + pa_xfree(db_values); + + return -1; +} + +/* the logic is simple: if we see the jack in multiple paths */ +/* assign all those paths to one availability_group */ +static void profile_set_set_availability_groups(pa_alsa_profile_set *ps) { + pa_dynarray *paths; + pa_alsa_path *p; + void *state; + unsigned idx1; + uint32_t num = 1; + + /* Merge ps->input_paths and ps->output_paths into one dynarray. */ + paths = pa_dynarray_new(NULL); + PA_HASHMAP_FOREACH(p, ps->input_paths, state) + pa_dynarray_append(paths, p); + PA_HASHMAP_FOREACH(p, ps->output_paths, state) + pa_dynarray_append(paths, p); + + PA_DYNARRAY_FOREACH(p, paths, idx1) { + pa_alsa_jack *j; + const char *found = NULL; + bool has_control = false; + + PA_LLIST_FOREACH(j, p->jacks) { + pa_alsa_path *p2; + unsigned idx2; + + if (!j->has_control || j->state_plugged == PA_AVAILABLE_NO) + continue; + has_control = true; + PA_DYNARRAY_FOREACH(p2, paths, idx2) { + pa_alsa_jack *j2; + + if (p2 == p) + break; + PA_LLIST_FOREACH(j2, p2->jacks) { + if (!j2->has_control || j2->state_plugged == PA_AVAILABLE_NO) + continue; + if (pa_streq(j->alsa_id.name, j2->alsa_id.name) && + j->alsa_id.index == j2->alsa_id.index) { + j->state_plugged = PA_AVAILABLE_UNKNOWN; + j2->state_plugged = PA_AVAILABLE_UNKNOWN; + found = p2->availability_group; + break; + } + } + } + if (found) + break; + } + if (!has_control) + continue; + if (!found) { + p->availability_group = pa_sprintf_malloc("Legacy %d", num); + } else { + p->availability_group = pa_xstrdup(found); + } + if (!found) + num++; + } + + pa_dynarray_free(paths); +} + +static void mapping_paths_probe(pa_alsa_mapping *m, pa_alsa_profile *profile, + pa_alsa_direction_t direction, pa_hashmap *used_paths, + pa_hashmap *mixers) { + + pa_alsa_path *p; + void *state; + snd_pcm_t *pcm_handle; + pa_alsa_path_set *ps; + snd_mixer_t *mixer_handle; + + if (direction == PA_ALSA_DIRECTION_OUTPUT) { + if (m->output_path_set) + return; /* Already probed */ + m->output_path_set = ps = pa_alsa_path_set_new(m, direction, NULL); /* FIXME: Handle paths_dir */ + pcm_handle = m->output_pcm; + } else { + if (m->input_path_set) + return; /* Already probed */ + m->input_path_set = ps = pa_alsa_path_set_new(m, direction, NULL); /* FIXME: Handle paths_dir */ + pcm_handle = m->input_pcm; + } + + if (!ps) + return; /* No paths */ + + pa_assert(pcm_handle); + + mixer_handle = pa_alsa_open_mixer_for_pcm(mixers, pcm_handle, true); + if (!mixer_handle) { + /* Cannot open mixer, remove all entries */ + pa_hashmap_remove_all(ps->paths); + return; + } + + PA_HASHMAP_FOREACH(p, ps->paths, state) { + if (p->autodetect_eld_device) + p->eld_device = m->hw_device_index; + + if (pa_alsa_path_probe(p, m, mixer_handle, m->profile_set->ignore_dB) < 0) + pa_hashmap_remove(ps->paths, p); + } + + path_set_condense(ps, mixer_handle); + path_set_make_path_descriptions_unique(ps); + + PA_HASHMAP_FOREACH(p, ps->paths, state) + pa_hashmap_put(used_paths, p, p); + + pa_log_debug("Available mixer paths (after tidying):"); + pa_alsa_path_set_dump(ps); +} + +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-mono-left", N_("Analog Mono (Left)") }, + { "analog-mono-right", N_("Analog Mono (Right)") }, + { "analog-stereo", N_("Analog Stereo") }, + { "mono-fallback", N_("Mono") }, + { "stereo-fallback", N_("Stereo") }, + /* Note: Not translated to "Analog Stereo Input", because the source + * name gets "Input" appended to it automatically, so adding "Input" + * here would lead to the source name to become "Analog Stereo Input + * Input". The same logic applies to analog-stereo-output, + * multichannel-input and multichannel-output. */ + { "analog-stereo-input", N_("Analog Stereo") }, + { "analog-stereo-output", N_("Analog Stereo") }, + { "analog-stereo-headset", N_("Headset") }, + { "analog-stereo-speakerphone", N_("Speakerphone") }, + { "multichannel-input", N_("Multichannel") }, + { "multichannel-output", N_("Multichannel") }, + { "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-ac3-surround-40", N_("Digital Surround 4.0 (IEC958/AC3)") }, + { "iec958-ac3-surround-51", N_("Digital Surround 5.1 (IEC958/AC3)") }, + { "iec958-dts-surround-51", N_("Digital Surround 5.1 (IEC958/DTS)") }, + { "hdmi-stereo", N_("Digital Stereo (HDMI)") }, + { "hdmi-surround-51", N_("Digital Surround 5.1 (HDMI)") }, + { "gaming-headset-chat", N_("Chat") }, + { "gaming-headset-game", N_("Game") }, + }; + const char *description_key = m->description_key ? m->description_key : m->name; + + 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 element, not both.", m->name); + return -1; + } + + if (!m->description) + m->description = pa_xstrdup(lookup_description(description_key, + 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_name = pa_xstrdup(m->name); + 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; + p->fallback_output = m->fallback; + } + + if (n) { + p->input_name = pa_xstrdup(n->name); + 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; + p->fallback_input = n->fallback; + } + + 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); + + /* The order is important here: + 1) try single inputs and outputs before trying their + combination, because if the half-duplex test failed, we don't have + to try full duplex. + 2) try the output right before the input combinations with + that output, because then the output_pcm is not closed between tests. + */ + PA_HASHMAP_FOREACH(n, ps->mappings, n_state) + profile_set_add_auto_pair(ps, NULL, n); + + 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); + } + +} + +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:analog-stereo-headset+input:analog-stereo-headset", N_("Headset") }, + { "output:analog-stereo-speakerphone+input:analog-stereo-speakerphone", N_("Speakerphone") }, + { "output:iec958-stereo+input:iec958-stereo", N_("Digital Stereo Duplex (IEC958)") }, + { "output:multichannel-output+input:multichannel-input", N_("Multichannel Duplex") }, + { "output:unknown-stereo+input:unknown-stereo", N_("Stereo Duplex") }, + { "output:analog-output-surround71+output:analog-output-chat+input:analog-input", N_("Mono Chat + 7.1 Surround") }, + { "off", N_("Off") } + }; + const char *description_key = p->description_key ? p->description_key : p->name; + + 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; + bool 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 nonexistent 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; + bool 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 nonexistent 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(description_key, + well_known_descriptions, + PA_ELEMENTSOF(well_known_descriptions))); + + if (!p->description) { + uint32_t idx; + pa_alsa_mapping *m; + char *ptr; + size_t size; + FILE *f; + int count = 0; + + f = open_memstream(&ptr, &size); + if (f == NULL) { + pa_log("failed to open memstream: %m"); + return -1; + } + + if (p->output_mappings) + PA_IDXSET_FOREACH(m, p->output_mappings, idx) { + if (count++ > 0) + fprintf(f, " + "); + fprintf(f, _("%s Output"), m->description); + } + + if (p->input_mappings) + PA_IDXSET_FOREACH(m, p->input_mappings, idx) { + if (count++ > 0) + fprintf(f, " + "); + fprintf(f, _("%s Input"), m->description); + } + + fclose(f); + p->description = ptr; + } + + 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), input=%s, output=%s priority=%u, supported=%s n_input_mappings=%u, n_output_mappings=%u", + p->name, + pa_strnull(p->description), + pa_strnull(p->input_name), + pa_strnull(p->output_name), + 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); +} + +static int decibel_fix_verify(pa_alsa_decibel_fix *db_fix) { + pa_assert(db_fix); + + /* Check that the dB mapping has been configured. Since "db-values" is + * currently the only option in the DecibelFix section, and decibel fix + * objects don't get created if a DecibelFix section is empty, this is + * actually a redundant check. Having this may prevent future bugs, + * however. */ + if (!db_fix->db_values) { + pa_log("Decibel fix for element %s lacks the dB values.", db_fix->name); + return -1; + } + + return 0; +} + +void pa_alsa_decibel_fix_dump(pa_alsa_decibel_fix *db_fix) { + char *db_values = NULL; + + pa_assert(db_fix); + + if (db_fix->db_values) { + unsigned long i, nsteps; + FILE *f; + char *ptr; + size_t size; + + f = open_memstream(&ptr, &size); + if (f == NULL) + return; + + pa_assert(db_fix->min_step <= db_fix->max_step); + nsteps = db_fix->max_step - db_fix->min_step + 1; + + for (i = 0; i < nsteps; ++i) + fprintf(f, "[%li]:%0.2f ", i + db_fix->min_step, db_fix->db_values[i] / 100.0); + + fclose(f); + db_values = ptr; + } + + pa_log_debug("Decibel fix %s, min_step=%li, max_step=%li, db_values=%s", + db_fix->name, db_fix->min_step, db_fix->max_step, pa_strnull(db_values)); + + pa_xfree(db_values); +} + +static const char *get_default_profile_dir(void) { + const char *str; +#ifdef HAVE_RUNNING_FROM_BUILD_TREE + if (pa_run_from_build_tree()) + return PA_SRCDIR "mixer/profile-sets"; + else +#endif + if (getenv("ACP_BUILDDIR") != NULL) + return "mixer/profile-sets"; + if ((str = getenv("ACP_PROFILES_DIR")) != NULL) + return str; + return PA_ALSA_PROFILE_SETS_DIR; +} + +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; + pa_alsa_decibel_fix *db_fix; + 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 }, + { "exact-channels", mapping_parse_exact_channels, NULL, NULL }, + { "intended-roles", mapping_parse_intended_roles, NULL, NULL }, + + /* Shared by [Mapping ...] and [Profile ...] */ + { "description", mapping_parse_description, NULL, NULL }, + { "description-key", mapping_parse_description_key,NULL, NULL }, + { "priority", mapping_parse_priority, NULL, NULL }, + { "fallback", mapping_parse_fallback, 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 }, + + /* [DecibelFix ...] */ + { "db-values", decibel_fix_parse_db_values, NULL, NULL }, + { NULL, NULL, NULL, NULL } + }; + + ps = pa_xnew0(pa_alsa_profile_set, 1); + ps->mappings = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL, (pa_free_cb_t) pa_alsa_mapping_free); + ps->profiles = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL, (pa_free_cb_t) pa_alsa_profile_free); + ps->decibel_fixes = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL, (pa_free_cb_t) decibel_fix_free); + ps->input_paths = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL, (pa_free_cb_t) pa_alsa_path_free); + ps->output_paths = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL, (pa_free_cb_t) pa_alsa_path_free); + + items[0].data = &ps->auto_profiles; + + fn = pa_maybe_prefix_path(fname ? fname : "default.conf", + get_default_profile_dir()); + if ((r = access(fn, R_OK)) != 0) { + if (fname != NULL) { + pa_log_warn("profile-set '%s' can't be accessed: %m", fn); + fn = pa_maybe_prefix_path("default.conf", + get_default_profile_dir()); + r = access(fn, R_OK); + } + if (r != 0) { + pa_log_warn("profile-set '%s' can't be accessed: %m", fn); + } + } + r = pa_config_parse(fn, NULL, items, NULL, false, 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; + + PA_HASHMAP_FOREACH(db_fix, ps->decibel_fixes, state) + if (decibel_fix_verify(db_fix) < 0) + goto fail; + + return ps; + +fail: + pa_alsa_profile_set_free(ps); + return NULL; +} + +static void profile_finalize_probing(pa_alsa_profile *to_be_finalized, pa_alsa_profile *next) { + pa_alsa_mapping *m; + uint32_t idx; + + if (!to_be_finalized) + return; + + if (to_be_finalized->output_mappings) + PA_IDXSET_FOREACH(m, to_be_finalized->output_mappings, idx) { + + if (!m->output_pcm) + continue; + + if (to_be_finalized->supported) + m->supported++; + + /* If this mapping is also in the next profile, we won't close the + * pcm handle here, because it would get immediately reopened + * anyway. */ + if (next && next->output_mappings && pa_idxset_get_by_data(next->output_mappings, m, NULL)) + continue; + + pa_alsa_init_proplist_pcm(NULL, m->output_proplist, m->output_pcm); + pa_alsa_close(&m->output_pcm); + } + + if (to_be_finalized->input_mappings) + PA_IDXSET_FOREACH(m, to_be_finalized->input_mappings, idx) { + + if (!m->input_pcm) + continue; + + if (to_be_finalized->supported) + m->supported++; + + /* If this mapping is also in the next profile, we won't close the + * pcm handle here, because it would get immediately reopened + * anyway. */ + if (next && next->input_mappings && pa_idxset_get_by_data(next->input_mappings, m, NULL)) + continue; + + pa_alsa_init_proplist_pcm(NULL, m->input_proplist, m->input_pcm); + pa_alsa_close(&m->input_pcm); + } +} + +static snd_pcm_t* mapping_open_pcm(pa_alsa_mapping *m, + const pa_sample_spec *ss, + const char *dev_id, + bool exact_channels, + int mode, + unsigned default_n_fragments, + unsigned default_fragment_size_msec) { + + snd_pcm_t* handle; + pa_sample_spec try_ss = *ss; + pa_channel_map try_map = m->channel_map; + snd_pcm_uframes_t try_period_size, try_buffer_size; + + 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; + + handle = pa_alsa_open_by_template( + m->device_strings, dev_id, NULL, &try_ss, + &try_map, mode, &try_period_size, + &try_buffer_size, 0, NULL, NULL, exact_channels); + if (handle && !exact_channels && m->channel_map.channels != try_map.channels) { + char buf[PA_CHANNEL_MAP_SNPRINT_MAX]; + pa_log_debug("Channel map for mapping '%s' permanently changed to '%s'", m->name, + pa_channel_map_snprint(buf, sizeof(buf), &try_map)); + m->channel_map = try_map; + } + return handle; +} + +static void paths_drop_unused(pa_hashmap* h, pa_hashmap *keep) { + + void* state = NULL; + const void* key; + pa_alsa_path* p; + + pa_assert(h); + pa_assert(keep); + + p = pa_hashmap_iterate(h, &state, &key); + while (p) { + if (pa_hashmap_get(keep, p) == NULL) + pa_hashmap_remove_and_free(h, key); + p = pa_hashmap_iterate(h, &state, &key); + } +} + +static int add_profiles_to_probe( + pa_alsa_profile **list, + pa_hashmap *profiles, + bool fallback_output, + bool fallback_input) { + + int i = 0; + void *state; + pa_alsa_profile *p; + PA_HASHMAP_FOREACH(p, profiles, state) + if (p->fallback_input == fallback_input && p->fallback_output == fallback_output) { + *list = p; + list++; + i++; + } + return i; +} + +static void mapping_query_hw_device(pa_alsa_mapping *mapping, snd_pcm_t *pcm) { + int r; + snd_pcm_info_t* pcm_info; + snd_pcm_info_alloca(&pcm_info); + + r = snd_pcm_info(pcm, pcm_info); + if (r < 0) { + pa_log("Mapping %s: snd_pcm_info() failed %s: ", mapping->name, pa_alsa_strerror(r)); + return; + } + + /* XXX: It's not clear what snd_pcm_info_get_device() does if the device is + * not backed by a hw device or if it's backed by multiple hw devices. We + * only use hw_device_index for HDMI devices, however, and for those the + * return value is expected to be always valid, so this shouldn't be a + * significant problem. */ + mapping->hw_device_index = snd_pcm_info_get_device(pcm_info); +} + +void pa_alsa_profile_set_probe( + pa_alsa_profile_set *ps, + pa_hashmap *mixers, + const char *dev_id, + const pa_sample_spec *ss, + unsigned default_n_fragments, + unsigned default_fragment_size_msec) { + + bool found_output = false, found_input = false; + + pa_alsa_profile *p, *last = NULL; + pa_alsa_profile **pp, **probe_order; + pa_alsa_mapping *m; + pa_hashmap *broken_inputs, *broken_outputs, *used_paths; + pa_alsa_mapping *selected_fallback_input = NULL, *selected_fallback_output = NULL; + + pa_assert(ps); + pa_assert(dev_id); + pa_assert(ss); + + if (ps->probed) + return; + + broken_inputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func); + broken_outputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func); + used_paths = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func); + pp = probe_order = pa_xnew0(pa_alsa_profile *, pa_hashmap_size(ps->profiles) + 1); + + pp += add_profiles_to_probe(pp, ps->profiles, false, false); + pp += add_profiles_to_probe(pp, ps->profiles, false, true); + pp += add_profiles_to_probe(pp, ps->profiles, true, false); + pp += add_profiles_to_probe(pp, ps->profiles, true, true); + + for (pp = probe_order; *pp; pp++) { + uint32_t idx; + p = *pp; + + /* Skip if fallback and already found something, but still probe already selected fallbacks. + * If UCM is used then both fallback_input and fallback_output flags are false. + * If UCM is not used then there will be only a single entry in mappings. + */ + if (found_input && p->fallback_input) + if (selected_fallback_input == NULL || pa_idxset_get_by_index(p->input_mappings, 0) != selected_fallback_input) + continue; + if (found_output && p->fallback_output) + if (selected_fallback_output == NULL || pa_idxset_get_by_index(p->output_mappings, 0) != selected_fallback_output) + continue; + + /* Skip if this is already marked that it is supported (i.e. from the config file) */ + if (!p->supported) { + + profile_finalize_probing(last, p); + p->supported = true; + + if (p->output_mappings) { + PA_IDXSET_FOREACH(m, p->output_mappings, idx) { + if (pa_hashmap_get(broken_outputs, m) == m) { + pa_log_debug("Skipping profile %s - will not be able to open output:%s", p->name, m->name); + p->supported = false; + break; + } + } + } + + if (p->input_mappings && p->supported) { + PA_IDXSET_FOREACH(m, p->input_mappings, idx) { + if (pa_hashmap_get(broken_inputs, m) == m) { + pa_log_debug("Skipping profile %s - will not be able to open input:%s", p->name, m->name); + p->supported = false; + break; + } + } + } + + if (p->supported) + pa_log_debug("Looking at profile %s", p->name); + + /* Check if we can open all new ones */ + if (p->output_mappings && p->supported) + 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); + if (!(m->output_pcm = mapping_open_pcm(m, ss, dev_id, m->exact_channels, + SND_PCM_STREAM_PLAYBACK, + default_n_fragments, + default_fragment_size_msec))) { + p->supported = false; + if (pa_idxset_size(p->output_mappings) == 1 && + ((!p->input_mappings) || pa_idxset_size(p->input_mappings) == 0)) { + pa_log_debug("Caching failure to open output:%s", m->name); + pa_hashmap_put(broken_outputs, m, m); + } + break; + } + + if (m->hw_device_index < 0) + mapping_query_hw_device(m, m->output_pcm); + } + + 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); + if (!(m->input_pcm = mapping_open_pcm(m, ss, dev_id, m->exact_channels, + SND_PCM_STREAM_CAPTURE, + default_n_fragments, + default_fragment_size_msec))) { + p->supported = false; + if (pa_idxset_size(p->input_mappings) == 1 && + ((!p->output_mappings) || pa_idxset_size(p->output_mappings) == 0)) { + pa_log_debug("Caching failure to open input:%s", m->name); + pa_hashmap_put(broken_inputs, m, m); + } + break; + } + + if (m->hw_device_index < 0) + mapping_query_hw_device(m, m->input_pcm); + } + + last = p; + + if (!p->supported) + continue; + } + + pa_log_debug("Profile %s supported.", p->name); + + if (p->output_mappings) + PA_IDXSET_FOREACH(m, p->output_mappings, idx) + if (m->output_pcm) { + found_output = true; + if (p->fallback_output && selected_fallback_output == NULL) { + selected_fallback_output = m; + } + mapping_paths_probe(m, p, PA_ALSA_DIRECTION_OUTPUT, used_paths, mixers); + } + + if (p->input_mappings) + PA_IDXSET_FOREACH(m, p->input_mappings, idx) + if (m->input_pcm) { + found_input = true; + if (p->fallback_input && selected_fallback_input == NULL) { + selected_fallback_input = m; + } + mapping_paths_probe(m, p, PA_ALSA_DIRECTION_INPUT, used_paths, mixers); + } + } + + /* Clean up */ + profile_finalize_probing(last, NULL); + + pa_alsa_profile_set_drop_unsupported(ps); + + paths_drop_unused(ps->input_paths, used_paths); + paths_drop_unused(ps->output_paths, used_paths); + pa_hashmap_free(broken_inputs); + pa_hashmap_free(broken_outputs); + pa_hashmap_free(used_paths); + pa_xfree(probe_order); + + profile_set_set_availability_groups(ps); + + ps->probed = true; +} + +void pa_alsa_profile_set_dump(pa_alsa_profile_set *ps) { + pa_alsa_profile *p; + pa_alsa_mapping *m; + pa_alsa_decibel_fix *db_fix; + void *state; + + pa_assert(ps); + + pa_log_debug("Profile set %p, auto_profiles=%s, probed=%s, n_mappings=%u, n_profiles=%u, n_decibel_fixes=%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_size(ps->decibel_fixes)); + + PA_HASHMAP_FOREACH(m, ps->mappings, state) + pa_alsa_mapping_dump(m); + + PA_HASHMAP_FOREACH(p, ps->profiles, state) + pa_alsa_profile_dump(p); + + PA_HASHMAP_FOREACH(db_fix, ps->decibel_fixes, state) + pa_alsa_decibel_fix_dump(db_fix); +} + +void pa_alsa_profile_set_drop_unsupported(pa_alsa_profile_set *ps) { + pa_alsa_profile *p; + pa_alsa_mapping *m; + void *state; + + PA_HASHMAP_FOREACH(p, ps->profiles, state) { + if (!p->supported) + pa_hashmap_remove_and_free(ps->profiles, p->name); + } + + PA_HASHMAP_FOREACH(m, ps->mappings, state) { + if (m->supported <= 0) + pa_hashmap_remove_and_free(ps->mappings, m->name); + } +} + +static pa_device_port* device_port_alsa_init(pa_hashmap *ports, /* card ports */ + const char* name, + const char* description, + pa_alsa_path *path, + pa_alsa_setting *setting, + pa_card_profile *cp, + pa_hashmap *extra, /* sink/source ports */ + pa_core *core) { + + pa_device_port *p; + + pa_assert(path); + + p = pa_hashmap_get(ports, name); + + if (!p) { + pa_alsa_port_data *data; + pa_device_port_new_data port_data; + + pa_device_port_new_data_init(&port_data); + pa_device_port_new_data_set_name(&port_data, name); + pa_device_port_new_data_set_description(&port_data, description); + pa_device_port_new_data_set_direction(&port_data, path->direction == PA_ALSA_DIRECTION_OUTPUT ? PA_DIRECTION_OUTPUT : PA_DIRECTION_INPUT); + pa_device_port_new_data_set_type(&port_data, path->device_port_type); + pa_device_port_new_data_set_availability_group(&port_data, path->availability_group); + + p = pa_device_port_new(core, &port_data, sizeof(pa_alsa_port_data)); + pa_device_port_new_data_done(&port_data); + pa_assert(p); + pa_hashmap_put(ports, p->name, p); + pa_proplist_update(p->proplist, PA_UPDATE_REPLACE, path->proplist); + + data = PA_DEVICE_PORT_DATA(p); + /* Ownership of the path and setting is not transferred to the port data, so we don't deal with freeing them */ + data->path = path; + data->setting = setting; + path->port = p; + } + + if (cp) + pa_hashmap_put(p->profiles, cp->name, cp); + + if (extra) { + pa_hashmap_put(extra, p->name, p); + } + + return p; +} + +void pa_alsa_path_set_add_ports( + pa_alsa_path_set *ps, + pa_card_profile *cp, + pa_hashmap *ports, /* card ports */ + pa_hashmap *extra, /* sink/source ports */ + pa_core *core) { + + pa_alsa_path *path; + void *state; + + pa_assert(ports); + + if (!ps) + return; + + PA_HASHMAP_FOREACH(path, ps->paths, state) { + if (!path->settings || !path->settings->next) { + /* If there is no or just one setting we only need a + * single entry */ + pa_device_port *port = device_port_alsa_init(ports, path->name, + path->description, path, path->settings, cp, extra, core); + port->priority = path->priority * 100; + + } else { + pa_alsa_setting *s; + PA_LLIST_FOREACH(s, path->settings) { + pa_device_port *port; + 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 = device_port_alsa_init(ports, n, d, path, s, cp, extra, core); + port->priority = path->priority * 100 + s->priority; + + pa_xfree(n); + pa_xfree(d); + } + } + } +} + +void pa_alsa_add_ports(pa_hashmap *ports, pa_alsa_path_set *ps, pa_card *card) { + pa_assert(ps); + + if (ps->paths && pa_hashmap_size(ps->paths) > 0) { + pa_assert(card); + pa_alsa_path_set_add_ports(ps, NULL, card->ports, ports, card->core); + } + + pa_log_debug("Added %u ports", pa_hashmap_size(ports)); +} |