/*** This file is part of PulseAudio. Copyright 2004-2009 Lennart Poettering Copyright 2006 Pierre Ossman for Cendio AB PulseAudio is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. PulseAudio is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with PulseAudio; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. ***/ #ifdef HAVE_CONFIG_H #include #endif #include #include #include #ifdef HAVE_VALGRIND_MEMCHECK_H #include #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "alsa-mixer.h" #include "alsa-util.h" struct description_map { const char *name; const char *description; }; static const char *lookup_description(const char *name, const struct description_map dm[], unsigned n) { unsigned i; for (i = 0; i < n; i++) if (pa_streq(dm[i].name, name)) return _(dm[i].description); return NULL; } struct pa_alsa_fdlist { unsigned num_fds; struct pollfd *fds; /* This is a temporary buffer used to avoid lots of mallocs */ struct pollfd *work_fds; snd_mixer_t *mixer; pa_mainloop_api *m; pa_defer_event *defer; pa_io_event **ios; pa_bool_t polled; void (*cb)(void *userdata); void *userdata; }; static void io_cb(pa_mainloop_api *a, pa_io_event *e, int fd, pa_io_event_flags_t events, void *userdata) { struct pa_alsa_fdlist *fdl = userdata; int err; unsigned i; unsigned short revents; pa_assert(a); pa_assert(fdl); pa_assert(fdl->mixer); pa_assert(fdl->fds); pa_assert(fdl->work_fds); if (fdl->polled) return; fdl->polled = TRUE; memcpy(fdl->work_fds, fdl->fds, sizeof(struct pollfd) * fdl->num_fds); for (i = 0; i < fdl->num_fds; i++) { if (e == fdl->ios[i]) { if (events & PA_IO_EVENT_INPUT) fdl->work_fds[i].revents |= POLLIN; if (events & PA_IO_EVENT_OUTPUT) fdl->work_fds[i].revents |= POLLOUT; if (events & PA_IO_EVENT_ERROR) fdl->work_fds[i].revents |= POLLERR; if (events & PA_IO_EVENT_HANGUP) fdl->work_fds[i].revents |= POLLHUP; break; } } pa_assert(i != fdl->num_fds); if ((err = snd_mixer_poll_descriptors_revents(fdl->mixer, fdl->work_fds, fdl->num_fds, &revents)) < 0) { pa_log_error("Unable to get poll revent: %s", pa_alsa_strerror(err)); return; } a->defer_enable(fdl->defer, 1); if (revents) snd_mixer_handle_events(fdl->mixer); } static void defer_cb(pa_mainloop_api *a, pa_defer_event *e, void *userdata) { struct pa_alsa_fdlist *fdl = userdata; unsigned num_fds, i; int err, n; struct pollfd *temp; pa_assert(a); pa_assert(fdl); pa_assert(fdl->mixer); a->defer_enable(fdl->defer, 0); if ((n = snd_mixer_poll_descriptors_count(fdl->mixer)) < 0) { pa_log("snd_mixer_poll_descriptors_count() failed: %s", pa_alsa_strerror(n)); return; } num_fds = (unsigned) n; if (num_fds != fdl->num_fds) { if (fdl->fds) pa_xfree(fdl->fds); if (fdl->work_fds) pa_xfree(fdl->work_fds); fdl->fds = pa_xnew0(struct pollfd, num_fds); fdl->work_fds = pa_xnew(struct pollfd, num_fds); } memset(fdl->work_fds, 0, sizeof(struct pollfd) * num_fds); if ((err = snd_mixer_poll_descriptors(fdl->mixer, fdl->work_fds, num_fds)) < 0) { pa_log_error("Unable to get poll descriptors: %s", pa_alsa_strerror(err)); return; } fdl->polled = FALSE; if (memcmp(fdl->fds, fdl->work_fds, sizeof(struct pollfd) * num_fds) == 0) return; if (fdl->ios) { for (i = 0; i < fdl->num_fds; i++) a->io_free(fdl->ios[i]); if (num_fds != fdl->num_fds) { pa_xfree(fdl->ios); fdl->ios = NULL; } } if (!fdl->ios) fdl->ios = pa_xnew(pa_io_event*, num_fds); /* Swap pointers */ temp = fdl->work_fds; fdl->work_fds = fdl->fds; fdl->fds = temp; fdl->num_fds = num_fds; for (i = 0;i < num_fds;i++) fdl->ios[i] = a->io_new(a, fdl->fds[i].fd, ((fdl->fds[i].events & POLLIN) ? PA_IO_EVENT_INPUT : 0) | ((fdl->fds[i].events & POLLOUT) ? PA_IO_EVENT_OUTPUT : 0), io_cb, fdl); } struct pa_alsa_fdlist *pa_alsa_fdlist_new(void) { struct pa_alsa_fdlist *fdl; fdl = pa_xnew0(struct pa_alsa_fdlist, 1); return fdl; } void pa_alsa_fdlist_free(struct pa_alsa_fdlist *fdl) { pa_assert(fdl); if (fdl->defer) { pa_assert(fdl->m); fdl->m->defer_free(fdl->defer); } if (fdl->ios) { unsigned i; pa_assert(fdl->m); for (i = 0; i < fdl->num_fds; i++) fdl->m->io_free(fdl->ios[i]); pa_xfree(fdl->ios); } if (fdl->fds) pa_xfree(fdl->fds); if (fdl->work_fds) pa_xfree(fdl->work_fds); pa_xfree(fdl); } int pa_alsa_fdlist_set_mixer(struct pa_alsa_fdlist *fdl, snd_mixer_t *mixer_handle, pa_mainloop_api *m) { pa_assert(fdl); pa_assert(mixer_handle); pa_assert(m); pa_assert(!fdl->m); fdl->mixer = mixer_handle; fdl->m = m; fdl->defer = m->defer_new(m, defer_cb, fdl); return 0; } struct pa_alsa_mixer_pdata { pa_rtpoll *rtpoll; pa_rtpoll_item *poll_item; snd_mixer_t *mixer; }; struct pa_alsa_mixer_pdata *pa_alsa_mixer_pdata_new(void) { struct pa_alsa_mixer_pdata *pd; pd = pa_xnew0(struct pa_alsa_mixer_pdata, 1); return pd; } void pa_alsa_mixer_pdata_free(struct pa_alsa_mixer_pdata *pd) { pa_assert(pd); if (pd->poll_item) { pa_rtpoll_item_free(pd->poll_item); } pa_xfree(pd); } static int rtpoll_work_cb(pa_rtpoll_item *i) { struct pa_alsa_mixer_pdata *pd; struct pollfd *p; unsigned n_fds; unsigned short revents = 0; int err; pd = pa_rtpoll_item_get_userdata(i); pa_assert_fp(pd); pa_assert_fp(i == pd->poll_item); p = pa_rtpoll_item_get_pollfd(i, &n_fds); if ((err = snd_mixer_poll_descriptors_revents(pd->mixer, p, n_fds, &revents)) < 0) { pa_log_error("Unable to get poll revent: %s", pa_alsa_strerror(err)); pa_rtpoll_item_free(i); return -1; } if (revents) { snd_mixer_handle_events(pd->mixer); pa_rtpoll_item_free(i); pa_alsa_set_mixer_rtpoll(pd, pd->mixer, pd->rtpoll); } return 0; } int pa_alsa_set_mixer_rtpoll(struct pa_alsa_mixer_pdata *pd, snd_mixer_t *mixer, pa_rtpoll *rtp) { pa_rtpoll_item *i; struct pollfd *p; int err, n; pa_assert(pd); pa_assert(mixer); pa_assert(rtp); if ((n = snd_mixer_poll_descriptors_count(mixer)) < 0) { pa_log("snd_mixer_poll_descriptors_count() failed: %s", pa_alsa_strerror(n)); return -1; } i = pa_rtpoll_item_new(rtp, PA_RTPOLL_LATE, (unsigned) n); p = pa_rtpoll_item_get_pollfd(i, NULL); memset(p, 0, sizeof(struct pollfd) * n); if ((err = snd_mixer_poll_descriptors(mixer, p, (unsigned) n)) < 0) { pa_log_error("Unable to get poll descriptors: %s", pa_alsa_strerror(err)); pa_rtpoll_item_free(i); return -1; } pd->rtpoll = rtp; pd->poll_item = i; pd->mixer = mixer; pa_rtpoll_item_set_userdata(i, pd); pa_rtpoll_item_set_work_callback(i, rtpoll_work_cb); return 0; } static int prepare_mixer(snd_mixer_t *mixer, const char *dev) { int err; pa_assert(mixer); pa_assert(dev); if ((err = snd_mixer_attach(mixer, dev)) < 0) { pa_log_info("Unable to attach to mixer %s: %s", dev, pa_alsa_strerror(err)); return -1; } if ((err = snd_mixer_selem_register(mixer, NULL, NULL)) < 0) { pa_log_warn("Unable to register mixer: %s", pa_alsa_strerror(err)); return -1; } if ((err = snd_mixer_load(mixer)) < 0) { pa_log_warn("Unable to load mixer: %s", pa_alsa_strerror(err)); return -1; } pa_log_info("Successfully attached to mixer '%s'", dev); return 0; } snd_mixer_t *pa_alsa_open_mixer_for_pcm(snd_pcm_t *pcm, char **ctl_device) { int err; snd_mixer_t *m; const char *dev; snd_pcm_info_t* info; snd_pcm_info_alloca(&info); pa_assert(pcm); if ((err = snd_mixer_open(&m, 0)) < 0) { pa_log("Error opening mixer: %s", pa_alsa_strerror(err)); return NULL; } /* First, try by name */ if ((dev = snd_pcm_name(pcm))) if (prepare_mixer(m, dev) >= 0) { if (ctl_device) *ctl_device = pa_xstrdup(dev); return m; } /* Then, try by card index */ if (snd_pcm_info(pcm, info) >= 0) { char *md; int card_idx; if ((card_idx = snd_pcm_info_get_card(info)) >= 0) { md = pa_sprintf_malloc("hw:%i", card_idx); if (!dev || !pa_streq(dev, md)) if (prepare_mixer(m, md) >= 0) { if (ctl_device) *ctl_device = md; else pa_xfree(md); return m; } pa_xfree(md); } } snd_mixer_close(m); return NULL; } static const snd_mixer_selem_channel_id_t alsa_channel_ids[PA_CHANNEL_POSITION_MAX] = { [PA_CHANNEL_POSITION_MONO] = SND_MIXER_SCHN_MONO, /* The ALSA name is just an alias! */ [PA_CHANNEL_POSITION_FRONT_CENTER] = SND_MIXER_SCHN_FRONT_CENTER, [PA_CHANNEL_POSITION_FRONT_LEFT] = SND_MIXER_SCHN_FRONT_LEFT, [PA_CHANNEL_POSITION_FRONT_RIGHT] = SND_MIXER_SCHN_FRONT_RIGHT, [PA_CHANNEL_POSITION_REAR_CENTER] = SND_MIXER_SCHN_REAR_CENTER, [PA_CHANNEL_POSITION_REAR_LEFT] = SND_MIXER_SCHN_REAR_LEFT, [PA_CHANNEL_POSITION_REAR_RIGHT] = SND_MIXER_SCHN_REAR_RIGHT, [PA_CHANNEL_POSITION_LFE] = SND_MIXER_SCHN_WOOFER, [PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_SIDE_LEFT] = SND_MIXER_SCHN_SIDE_LEFT, [PA_CHANNEL_POSITION_SIDE_RIGHT] = SND_MIXER_SCHN_SIDE_RIGHT, [PA_CHANNEL_POSITION_AUX0] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX1] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX2] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX3] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX4] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX5] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX6] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX7] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX8] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX9] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX10] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX11] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX12] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX13] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX14] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX15] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX16] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX17] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX18] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX19] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX20] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX21] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX22] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX23] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX24] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX25] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX26] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX27] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX28] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX29] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX30] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_AUX31] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_TOP_CENTER] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_TOP_FRONT_CENTER] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_TOP_FRONT_LEFT] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_TOP_FRONT_RIGHT] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_TOP_REAR_CENTER] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_TOP_REAR_LEFT] = SND_MIXER_SCHN_UNKNOWN, [PA_CHANNEL_POSITION_TOP_REAR_RIGHT] = SND_MIXER_SCHN_UNKNOWN }; static void setting_free(pa_alsa_setting *s) { pa_assert(s); if (s->options) pa_idxset_free(s->options, NULL, NULL); pa_xfree(s->name); pa_xfree(s->description); pa_xfree(s); } static void option_free(pa_alsa_option *o) { pa_assert(o); pa_xfree(o->alsa_name); pa_xfree(o->name); pa_xfree(o->description); pa_xfree(o); } static void 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); } 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_name); pa_xfree(e); } void pa_alsa_path_free(pa_alsa_path *p) { pa_alsa_element *e; pa_alsa_setting *s; pa_assert(p); while ((e = p->elements)) { PA_LLIST_REMOVE(pa_alsa_element, p->elements, e); element_free(e); } while ((s = p->settings)) { PA_LLIST_REMOVE(pa_alsa_setting, p->settings, s); setting_free(s); } pa_xfree(p->name); pa_xfree(p->description); pa_xfree(p); } void pa_alsa_path_set_free(pa_alsa_path_set *ps) { pa_alsa_path *p; pa_assert(ps); while ((p = ps->paths)) { PA_LLIST_REMOVE(pa_alsa_path, ps->paths, p); pa_alsa_path_free(p); } pa_xfree(ps); } static long to_alsa_dB(pa_volume_t v) { return (long) (pa_sw_volume_to_dB(v) * 100.0); } static pa_volume_t from_alsa_dB(long v) { return pa_sw_volume_from_dB((double) v / 100.0); } static long to_alsa_volume(pa_volume_t v, long min, long max) { long w; w = (long) round(((double) v * (double) (max - min)) / PA_VOLUME_NORM) + min; return PA_CLAMP_UNLIKELY(w, min, max); } static pa_volume_t from_alsa_volume(long v, long min, long max) { return (pa_volume_t) round(((double) (v - min) * PA_VOLUME_NORM) / (double) (max - min)); } #define SELEM_INIT(sid, name) \ do { \ snd_mixer_selem_id_alloca(&(sid)); \ snd_mixer_selem_id_set_name((sid), (name)); \ snd_mixer_selem_id_set_index((sid), 0); \ } while(FALSE) static int element_get_volume(pa_alsa_element *e, snd_mixer_t *m, const pa_channel_map *cm, pa_cvolume *v) { snd_mixer_selem_id_t *sid; snd_mixer_elem_t *me; snd_mixer_selem_channel_id_t c; pa_channel_position_mask_t mask = 0; unsigned k; pa_assert(m); pa_assert(e); pa_assert(cm); pa_assert(v); SELEM_INIT(sid, e->alsa_name); if (!(me = snd_mixer_find_selem(m, sid))) { pa_log_warn("Element %s seems to have disappeared.", e->alsa_name); return -1; } pa_cvolume_mute(v, cm->channels); /* We take the highest volume of all channels that match */ for (c = 0; c <= SND_MIXER_SCHN_LAST; c++) { int r; pa_volume_t f; if (e->has_dB) { long value = 0; if (e->direction == PA_ALSA_DIRECTION_OUTPUT) { if (snd_mixer_selem_has_playback_channel(me, c)) { 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_log_debug("Playback volume for element %s channel %i was below the dB fix limit. " "Volume reset to %0.2f dB.", e->alsa_name, 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_log_debug("Playback volume for element %s channel %i was over the dB fix limit. " "Volume reset to %0.2f dB.", e->alsa_name, 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_log_debug("Capture volume for element %s channel %i was below the dB fix limit. " "Volume reset to %0.2f dB.", e->alsa_name, 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_log_debug("Capture volume for element %s channel %i was over the dB fix limit. " "Volume reset to %0.2f dB.", e->alsa_name, 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; #ifdef HAVE_VALGRIND_MEMCHECK_H VALGRIND_MAKE_MEM_DEFINED(&value, sizeof(value)); #endif f = from_alsa_dB(value); } else { long value = 0; if (e->direction == PA_ALSA_DIRECTION_OUTPUT) { if (snd_mixer_selem_has_playback_channel(me, c)) r = snd_mixer_selem_get_playback_volume(me, c, &value); else r = -1; } else { if (snd_mixer_selem_has_capture_channel(me, c)) r = snd_mixer_selem_get_capture_volume(me, c, &value); else r = -1; } if (r < 0) continue; f = from_alsa_volume(value, e->min_volume, e->max_volume); } for (k = 0; k < cm->channels; k++) if (e->masks[c][e->n_channels-1] & PA_CHANNEL_POSITION_MASK(cm->map[k])) if (v->values[k] < f) v->values[k] = f; mask |= e->masks[c][e->n_channels-1]; } for (k = 0; k < cm->channels; k++) if (!(mask & PA_CHANNEL_POSITION_MASK(cm->map[k]))) v->values[k] = PA_VOLUME_NORM; return 0; } int pa_alsa_path_get_volume(pa_alsa_path *p, snd_mixer_t *m, const pa_channel_map *cm, pa_cvolume *v) { pa_alsa_element *e; pa_assert(m); pa_assert(p); pa_assert(cm); pa_assert(v); if (!p->has_volume) return -1; pa_cvolume_reset(v, cm->channels); PA_LLIST_FOREACH(e, p->elements) { pa_cvolume ev; if (e->volume_use != PA_ALSA_VOLUME_MERGE) continue; pa_assert(!p->has_dB || e->has_dB); if (element_get_volume(e, m, cm, &ev) < 0) return -1; /* If we have no dB information all we can do is take the first element and leave */ if (!p->has_dB) { *v = ev; return 0; } pa_sw_cvolume_multiply(v, v, &ev); } return 0; } static int element_get_switch(pa_alsa_element *e, snd_mixer_t *m, pa_bool_t *b) { snd_mixer_selem_id_t *sid; snd_mixer_elem_t *me; snd_mixer_selem_channel_id_t c; pa_assert(m); pa_assert(e); pa_assert(b); SELEM_INIT(sid, e->alsa_name); if (!(me = snd_mixer_find_selem(m, sid))) { pa_log_warn("Element %s seems to have disappeared.", e->alsa_name); return -1; } /* We return muted if at least one channel is muted */ for (c = 0; c <= SND_MIXER_SCHN_LAST; c++) { int r; int value = 0; if (e->direction == PA_ALSA_DIRECTION_OUTPUT) { if (snd_mixer_selem_has_playback_channel(me, c)) r = snd_mixer_selem_get_playback_switch(me, c, &value); else r = -1; } else { if (snd_mixer_selem_has_capture_channel(me, c)) r = snd_mixer_selem_get_capture_switch(me, c, &value); else r = -1; } if (r < 0) continue; if (!value) { *b = FALSE; return 0; } } *b = TRUE; return 0; } int pa_alsa_path_get_mute(pa_alsa_path *p, snd_mixer_t *m, pa_bool_t *muted) { pa_alsa_element *e; pa_assert(m); pa_assert(p); pa_assert(muted); if (!p->has_mute) return -1; PA_LLIST_FOREACH(e, p->elements) { pa_bool_t b; if (e->switch_use != PA_ALSA_SWITCH_MUTE) continue; if (element_get_switch(e, m, &b) < 0) return -1; if (!b) { *muted = TRUE; return 0; } } *muted = FALSE; return 0; } /* 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; } static int element_set_volume(pa_alsa_element *e, snd_mixer_t *m, const pa_channel_map *cm, pa_cvolume *v, pa_bool_t write_to_hw) { snd_mixer_selem_id_t *sid; pa_cvolume rv; snd_mixer_elem_t *me; snd_mixer_selem_channel_id_t c; pa_channel_position_mask_t mask = 0; unsigned k; pa_assert(m); pa_assert(e); pa_assert(cm); pa_assert(v); pa_assert(pa_cvolume_compatible_with_channel_map(v, cm)); SELEM_INIT(sid, e->alsa_name); if (!(me = snd_mixer_find_selem(m, sid))) { pa_log_warn("Element %s seems to have disappeared.", e->alsa_name); return -1; } pa_cvolume_mute(&rv, cm->channels); for (c = 0; c <= SND_MIXER_SCHN_LAST; c++) { int r; pa_volume_t f = PA_VOLUME_MUTED; pa_bool_t found = FALSE; for (k = 0; k < cm->channels; k++) if (e->masks[c][e->n_channels-1] & PA_CHANNEL_POSITION_MASK(cm->map[k])) { found = TRUE; if (v->values[k] > f) f = v->values[k]; } if (!found) { /* Hmm, so this channel does not exist in the volume * struct, so let's bind it to the overall max of the * volume. */ f = pa_cvolume_max(v); } if (e->has_dB) { long value = to_alsa_dB(f); int rounding = value > 0 ? -1 : +1; 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)) { 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 ((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)) { 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 ((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; #ifdef HAVE_VALGRIND_MEMCHECK_H VALGRIND_MAKE_MEM_DEFINED(&value, sizeof(value)); #endif f = from_alsa_dB(value); } else { long value; value = to_alsa_volume(f, e->min_volume, e->max_volume); if (e->direction == PA_ALSA_DIRECTION_OUTPUT) { if (snd_mixer_selem_has_playback_channel(me, c)) { if ((r = snd_mixer_selem_set_playback_volume(me, c, value)) >= 0) r = snd_mixer_selem_get_playback_volume(me, c, &value); } else r = -1; } else { if (snd_mixer_selem_has_capture_channel(me, c)) { if ((r = snd_mixer_selem_set_capture_volume(me, c, value)) >= 0) r = snd_mixer_selem_get_capture_volume(me, c, &value); } else r = -1; } if (r < 0) continue; f = from_alsa_volume(value, e->min_volume, e->max_volume); } for (k = 0; k < cm->channels; k++) if (e->masks[c][e->n_channels-1] & PA_CHANNEL_POSITION_MASK(cm->map[k])) if (rv.values[k] < f) rv.values[k] = f; mask |= e->masks[c][e->n_channels-1]; } for (k = 0; k < cm->channels; k++) if (!(mask & PA_CHANNEL_POSITION_MASK(cm->map[k]))) rv.values[k] = PA_VOLUME_NORM; *v = rv; return 0; } int pa_alsa_path_set_volume(pa_alsa_path *p, snd_mixer_t *m, const pa_channel_map *cm, pa_cvolume *v, pa_bool_t write_to_hw) { pa_alsa_element *e; pa_cvolume rv; pa_assert(m); pa_assert(p); pa_assert(cm); pa_assert(v); pa_assert(pa_cvolume_compatible_with_channel_map(v, cm)); if (!p->has_volume) return -1; rv = *v; /* Remaining adjustment */ pa_cvolume_reset(v, cm->channels); /* Adjustment done */ PA_LLIST_FOREACH(e, p->elements) { pa_cvolume ev; if (e->volume_use != PA_ALSA_VOLUME_MERGE) continue; pa_assert(!p->has_dB || e->has_dB); ev = rv; if (element_set_volume(e, m, cm, &ev, write_to_hw) < 0) return -1; if (!p->has_dB) { *v = ev; return 0; } pa_sw_cvolume_multiply(v, v, &ev); pa_sw_cvolume_divide(&rv, &rv, &ev); } return 0; } static int element_set_switch(pa_alsa_element *e, snd_mixer_t *m, pa_bool_t b) { snd_mixer_elem_t *me; snd_mixer_selem_id_t *sid; int r; pa_assert(m); pa_assert(e); SELEM_INIT(sid, e->alsa_name); if (!(me = snd_mixer_find_selem(m, sid))) { pa_log_warn("Element %s seems to have disappeared.", e->alsa_name); return -1; } if (e->direction == PA_ALSA_DIRECTION_OUTPUT) r = snd_mixer_selem_set_playback_switch_all(me, b); else r = snd_mixer_selem_set_capture_switch_all(me, b); if (r < 0) pa_log_warn("Failed to set switch of %s: %s", e->alsa_name, pa_alsa_strerror(errno)); return r; } int pa_alsa_path_set_mute(pa_alsa_path *p, snd_mixer_t *m, pa_bool_t muted) { pa_alsa_element *e; pa_assert(m); pa_assert(p); if (!p->has_mute) return -1; PA_LLIST_FOREACH(e, p->elements) { if (e->switch_use != PA_ALSA_SWITCH_MUTE) continue; if (element_set_switch(e, m, !muted) < 0) return -1; } return 0; } /* 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; pa_assert(m); pa_assert(e); SELEM_INIT(sid, e->alsa_name); if (!(me = snd_mixer_find_selem(m, sid))) { pa_log_warn("Element %s seems to have disappeared.", e->alsa_name); return -1; } switch (e->volume_use) { case PA_ALSA_VOLUME_OFF: volume = e->min_volume; break; case PA_ALSA_VOLUME_ZERO: if (e->db_fix) { long dB = 0; volume = decibel_fix_get_step(e->db_fix, &dB, +1); } break; case PA_ALSA_VOLUME_CONSTANT: volume = e->constant_volume; break; default: pa_assert_not_reached(); } if (volume >= 0) { 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_log_warn("Failed to set volume of %s: %s", e->alsa_name, pa_alsa_strerror(errno)); return r; } int pa_alsa_path_select(pa_alsa_path *p, snd_mixer_t *m) { pa_alsa_element *e; int r = 0; pa_assert(m); pa_assert(p); pa_log_debug("Activating path %s", p->name); pa_alsa_path_dump(p); PA_LLIST_FOREACH(e, p->elements) { switch (e->switch_use) { case PA_ALSA_SWITCH_OFF: r = element_set_switch(e, m, FALSE); break; case PA_ALSA_SWITCH_ON: r = element_set_switch(e, m, TRUE); break; case PA_ALSA_SWITCH_MUTE: case PA_ALSA_SWITCH_IGNORE: case PA_ALSA_SWITCH_SELECT: r = 0; break; } if (r < 0) return -1; switch (e->volume_use) { case PA_ALSA_VOLUME_OFF: 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; } return 0; } static int check_required(pa_alsa_element *e, snd_mixer_elem_t *me) { pa_bool_t has_switch; pa_bool_t has_enumeration; pa_bool_t has_volume; pa_assert(e); pa_assert(me); if (e->direction == PA_ALSA_DIRECTION_OUTPUT) { has_switch = snd_mixer_selem_has_playback_switch(me) || (e->direction_try_other && snd_mixer_selem_has_capture_switch(me)); } else { has_switch = snd_mixer_selem_has_capture_switch(me) || (e->direction_try_other && snd_mixer_selem_has_playback_switch(me)); } if (e->direction == PA_ALSA_DIRECTION_OUTPUT) { has_volume = snd_mixer_selem_has_playback_volume(me) || (e->direction_try_other && snd_mixer_selem_has_capture_volume(me)); } else { has_volume = snd_mixer_selem_has_capture_volume(me) || (e->direction_try_other && snd_mixer_selem_has_playback_volume(me)); } has_enumeration = snd_mixer_selem_is_enumerated(me); if ((e->required == PA_ALSA_REQUIRED_SWITCH && !has_switch) || (e->required == PA_ALSA_REQUIRED_VOLUME && !has_volume) || (e->required == PA_ALSA_REQUIRED_ENUMERATION && !has_enumeration)) return -1; if (e->required == PA_ALSA_REQUIRED_ANY && !(has_switch || has_volume || has_enumeration)) return -1; if ((e->required_absent == PA_ALSA_REQUIRED_SWITCH && has_switch) || (e->required_absent == PA_ALSA_REQUIRED_VOLUME && has_volume) || (e->required_absent == PA_ALSA_REQUIRED_ENUMERATION && has_enumeration)) return -1; if (e->required_absent == PA_ALSA_REQUIRED_ANY && (has_switch || has_volume || has_enumeration)) return -1; 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_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_name); if (!(me = snd_mixer_find_selem(m, sid))) { if (e->required != PA_ALSA_REQUIRED_IGNORE) return -1; e->switch_use = PA_ALSA_SWITCH_IGNORE; e->volume_use = PA_ALSA_VOLUME_IGNORE; e->enumeration_use = PA_ALSA_ENUMERATION_IGNORE; return 0; } if (e->switch_use != PA_ALSA_SWITCH_IGNORE) { if (e->direction == PA_ALSA_DIRECTION_OUTPUT) { if (!snd_mixer_selem_has_playback_switch(me)) { if (e->direction_try_other && snd_mixer_selem_has_capture_switch(me)) e->direction = PA_ALSA_DIRECTION_INPUT; else e->switch_use = PA_ALSA_SWITCH_IGNORE; } } else { if (!snd_mixer_selem_has_capture_switch(me)) { if (e->direction_try_other && snd_mixer_selem_has_playback_switch(me)) e->direction = PA_ALSA_DIRECTION_OUTPUT; else e->switch_use = PA_ALSA_SWITCH_IGNORE; } } if (e->switch_use != PA_ALSA_SWITCH_IGNORE) e->direction_try_other = FALSE; } if (e->volume_use != PA_ALSA_VOLUME_IGNORE) { if (e->direction == PA_ALSA_DIRECTION_OUTPUT) { if (!snd_mixer_selem_has_playback_volume(me)) { if (e->direction_try_other && snd_mixer_selem_has_capture_volume(me)) e->direction = PA_ALSA_DIRECTION_INPUT; else e->volume_use = PA_ALSA_VOLUME_IGNORE; } } else { if (!snd_mixer_selem_has_capture_volume(me)) { if (e->direction_try_other && snd_mixer_selem_has_playback_volume(me)) e->direction = PA_ALSA_DIRECTION_OUTPUT; else e->volume_use = PA_ALSA_VOLUME_IGNORE; } } if (e->volume_use != PA_ALSA_VOLUME_IGNORE) { long min_dB = 0, max_dB = 0; int r; e->direction_try_other = FALSE; if (e->direction == PA_ALSA_DIRECTION_OUTPUT) r = snd_mixer_selem_get_playback_volume_range(me, &e->min_volume, &e->max_volume); else r = snd_mixer_selem_get_capture_volume_range(me, &e->min_volume, &e->max_volume); if (r < 0) { pa_log_warn("Failed to get volume range of %s: %s", e->alsa_name, pa_alsa_strerror(r)); return -1; } if (e->min_volume >= e->max_volume) { pa_log_warn("Your kernel driver is broken: it reports a volume range from %li to %li which makes no sense.", e->min_volume, e->max_volume); e->volume_use = PA_ALSA_VOLUME_IGNORE; } else if (e->volume_use == PA_ALSA_VOLUME_CONSTANT && (e->min_volume > e->constant_volume || e->max_volume < e->constant_volume)) { pa_log_warn("Constant volume %li configured for element %s, but the available range is from %li to %li.", e->constant_volume, e->alsa_name, e->min_volume, e->max_volume); e->volume_use = PA_ALSA_VOLUME_IGNORE; } else { pa_bool_t is_mono; pa_channel_position_t p; if (e->db_fix && ((e->min_volume > e->db_fix->min_step) || (e->max_volume < e->db_fix->max_step))) { 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.", e->alsa_name, 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; if (e->has_dB) { #ifdef HAVE_VALGRIND_MEMCHECK_H VALGRIND_MAKE_MEM_DEFINED(&min_dB, sizeof(min_dB)); VALGRIND_MAKE_MEM_DEFINED(&max_dB, sizeof(max_dB)); #endif e->min_dB = ((double) min_dB) / 100.0; e->max_dB = ((double) max_dB) / 100.0; if (min_dB >= max_dB) { pa_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_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.", e->alsa_name, 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 (e->direction == PA_ALSA_DIRECTION_OUTPUT) r = snd_mixer_selem_ask_playback_vol_dB(me, e->max_volume, &max_dB); else r = snd_mixer_selem_ask_capture_vol_dB(me, e->max_volume, &max_dB); if (r < 0) { pa_log_warn("Failed to get dB value of %s: %s", e->alsa_name, 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) { 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]; } else { e->n_channels = 0; for (p = PA_CHANNEL_POSITION_FRONT_LEFT; p < PA_CHANNEL_POSITION_MAX; p++) { if (alsa_channel_ids[p] == SND_MIXER_SCHN_UNKNOWN) continue; if (e->direction == PA_ALSA_DIRECTION_OUTPUT) e->n_channels += snd_mixer_selem_has_playback_channel(me, alsa_channel_ids[p]) > 0; else e->n_channels += snd_mixer_selem_has_capture_channel(me, alsa_channel_ids[p]) > 0; } if (e->n_channels <= 0) { pa_log_warn("Volume element %s with no channels?", e->alsa_name); return -1; } if (e->n_channels > 2) { /* 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][2]; * * Since the array size is fixed at 2, we obviously * don't support elements with more than two * channels... */ pa_log_warn("Volume element %s has %u channels. That's too much! I can't handle that!", e->alsa_name, e->n_channels); return -1; } if (!e->override_map) { for (p = PA_CHANNEL_POSITION_FRONT_LEFT; p < PA_CHANNEL_POSITION_MAX; p++) { pa_bool_t has_channel; if (alsa_channel_ids[p] == SND_MIXER_SCHN_UNKNOWN) continue; if (e->direction == PA_ALSA_DIRECTION_OUTPUT) has_channel = snd_mixer_selem_has_playback_channel(me, alsa_channel_ids[p]) > 0; else has_channel = snd_mixer_selem_has_capture_channel(me, alsa_channel_ids[p]) > 0; e->masks[alsa_channel_ids[p]][e->n_channels-1] = has_channel ? PA_CHANNEL_POSITION_MASK(p) : 0; } } e->merged_mask = 0; for (p = PA_CHANNEL_POSITION_FRONT_LEFT; p < PA_CHANNEL_POSITION_MAX; p++) { 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->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 pa_alsa_element* element_get(pa_alsa_path *p, const char *section, pa_bool_t prefixed) { pa_alsa_element *e; pa_assert(p); pa_assert(section); if (prefixed) { if (!pa_startswith(section, "Element ")) return NULL; section += 8; } /* This is not an element section, but an enum section? */ if (strchr(section, ':')) return NULL; if (p->last_element && pa_streq(p->last_element->alsa_name, section)) return p->last_element; PA_LLIST_FOREACH(e, p->elements) if (pa_streq(e->alsa_name, section)) goto finish; e = pa_xnew0(pa_alsa_element, 1); e->path = p; e->alsa_name = pa_xstrdup(section); e->direction = p->direction; 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_option* option_get(pa_alsa_path *p, const char *section) { char *en; const char *on; pa_alsa_option *o; pa_alsa_element *e; if (!pa_startswith(section, "Option ")) return NULL; section += 7; /* This is not an enum section, but an element section? */ if (!(on = strchr(section, ':'))) return NULL; en = pa_xstrndup(section, on - section); on++; if (p->last_option && pa_streq(p->last_option->element->alsa_name, en) && pa_streq(p->last_option->alsa_name, on)) { pa_xfree(en); return p->last_option; } pa_assert_se(e = element_get(p, en, FALSE)); pa_xfree(en); PA_LLIST_FOREACH(o, e->options) if (pa_streq(o->alsa_name, on)) goto finish; o = pa_xnew0(pa_alsa_option, 1); o->element = e; o->alsa_name = pa_xstrdup(on); o->alsa_idx = -1; if (p->last_option && p->last_option->element == e) PA_LLIST_INSERT_AFTER(pa_alsa_option, e->options, p->last_option, o); else PA_LLIST_PREPEND(pa_alsa_option, e->options, o); finish: p->last_option = o; return o; } static int element_parse_switch( const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata) { pa_alsa_path *p = userdata; pa_alsa_element *e; pa_assert(p); if (!(e = element_get(p, section, TRUE))) { pa_log("[%s:%u] Switch makes no sense in '%s'", filename, line, section); return -1; } if (pa_streq(rvalue, "ignore")) e->switch_use = PA_ALSA_SWITCH_IGNORE; else if (pa_streq(rvalue, "mute")) e->switch_use = PA_ALSA_SWITCH_MUTE; else if (pa_streq(rvalue, "off")) e->switch_use = PA_ALSA_SWITCH_OFF; else if (pa_streq(rvalue, "on")) e->switch_use = PA_ALSA_SWITCH_ON; else if (pa_streq(rvalue, "select")) e->switch_use = PA_ALSA_SWITCH_SELECT; else { pa_log("[%s:%u] Switch invalid of '%s'", filename, line, section); return -1; } return 0; } static int element_parse_volume( const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata) { pa_alsa_path *p = userdata; pa_alsa_element *e; pa_assert(p); if (!(e = element_get(p, section, TRUE))) { pa_log("[%s:%u] Volume makes no sense in '%s'", filename, line, section); return -1; } if (pa_streq(rvalue, "ignore")) e->volume_use = PA_ALSA_VOLUME_IGNORE; else if (pa_streq(rvalue, "merge")) e->volume_use = PA_ALSA_VOLUME_MERGE; else if (pa_streq(rvalue, "off")) e->volume_use = PA_ALSA_VOLUME_OFF; else if (pa_streq(rvalue, "zero")) e->volume_use = PA_ALSA_VOLUME_ZERO; else { uint32_t constant; if (pa_atou(rvalue, &constant) >= 0) { e->volume_use = PA_ALSA_VOLUME_CONSTANT; e->constant_volume = constant; } else { pa_log("[%s:%u] Volume invalid of '%s'", filename, line, section); return -1; } } return 0; } static int element_parse_enumeration( const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata) { pa_alsa_path *p = userdata; pa_alsa_element *e; pa_assert(p); if (!(e = element_get(p, section, TRUE))) { pa_log("[%s:%u] Enumeration makes no sense in '%s'", filename, line, section); return -1; } if (pa_streq(rvalue, "ignore")) e->enumeration_use = PA_ALSA_ENUMERATION_IGNORE; else if (pa_streq(rvalue, "select")) e->enumeration_use = PA_ALSA_ENUMERATION_SELECT; else { pa_log("[%s:%u] Enumeration invalid of '%s'", filename, line, section); return -1; } return 0; } static int option_parse_priority( const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata) { pa_alsa_path *p = userdata; pa_alsa_option *o; uint32_t prio; pa_assert(p); if (!(o = option_get(p, section))) { pa_log("[%s:%u] Priority makes no sense in '%s'", filename, line, section); return -1; } if (pa_atou(rvalue, &prio) < 0) { pa_log("[%s:%u] Priority invalid of '%s'", filename, line, section); return -1; } o->priority = prio; return 0; } static int option_parse_name( const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata) { pa_alsa_path *p = userdata; pa_alsa_option *o; pa_assert(p); if (!(o = option_get(p, section))) { pa_log("[%s:%u] Name makes no sense in '%s'", filename, line, section); return -1; } pa_xfree(o->name); o->name = pa_xstrdup(rvalue); return 0; } static int element_parse_required( const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata) { pa_alsa_path *p = userdata; pa_alsa_element *e; pa_alsa_option *o; pa_alsa_required_t req; pa_assert(p); e = element_get(p, section, TRUE); o = option_get(p, section); if (!e && !o) { pa_log("[%s:%u] Required makes no sense in '%s'", filename, line, section); return -1; } if (pa_streq(rvalue, "ignore")) req = PA_ALSA_REQUIRED_IGNORE; else if (pa_streq(rvalue, "switch") && e) req = PA_ALSA_REQUIRED_SWITCH; else if (pa_streq(rvalue, "volume") && e) req = PA_ALSA_REQUIRED_VOLUME; else if (pa_streq(rvalue, "enumeration")) req = PA_ALSA_REQUIRED_ENUMERATION; else if (pa_streq(rvalue, "any")) req = PA_ALSA_REQUIRED_ANY; else { pa_log("[%s:%u] Required invalid of '%s'", filename, line, section); return -1; } if (pa_streq(lvalue, "required-absent")) { if (e) e->required_absent = req; if (o) o->required_absent = req; } else if (pa_streq(lvalue, "required-any")) { if (e) { e->required_any = req; e->path->has_req_any = TRUE; } if (o) { o->required_any = req; o->element->path->has_req_any = TRUE; } } else { if (e) e->required = req; if (o) o->required = req; } return 0; } static int element_parse_direction( const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata) { pa_alsa_path *p = userdata; pa_alsa_element *e; pa_assert(p); if (!(e = element_get(p, section, TRUE))) { pa_log("[%s:%u] Direction makes no sense in '%s'", filename, line, section); return -1; } if (pa_streq(rvalue, "playback")) e->direction = PA_ALSA_DIRECTION_OUTPUT; else if (pa_streq(rvalue, "capture")) e->direction = PA_ALSA_DIRECTION_INPUT; else { pa_log("[%s:%u] Direction invalid of '%s'", filename, line, section); return -1; } return 0; } static int element_parse_direction_try_other( const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata) { pa_alsa_path *p = userdata; pa_alsa_element *e; int yes; if (!(e = element_get(p, section, TRUE))) { pa_log("[%s:%u] Direction makes no sense in '%s'", filename, line, section); return -1; } if ((yes = pa_parse_boolean(rvalue)) < 0) { pa_log("[%s:%u] Direction invalid of '%s'", filename, line, section); return -1; } e->direction_try_other = !!yes; return 0; } static int element_parse_volume_limit( const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata) { pa_alsa_path *p = userdata; pa_alsa_element *e; long volume_limit; if (!(e = element_get(p, section, TRUE))) { pa_log("[%s:%u] volume-limit makes no sense in '%s'", filename, line, section); return -1; } if (pa_atol(rvalue, &volume_limit) < 0 || volume_limit < 0) { pa_log("[%s:%u] Invalid value for volume-limit", filename, line); return -1; } e->volume_limit = volume_limit; return 0; } static pa_channel_position_mask_t parse_mask(const char *m) { pa_channel_position_mask_t v; if (pa_streq(m, "all-left")) v = PA_CHANNEL_POSITION_MASK_LEFT; else if (pa_streq(m, "all-right")) v = PA_CHANNEL_POSITION_MASK_RIGHT; else if (pa_streq(m, "all-center")) v = PA_CHANNEL_POSITION_MASK_CENTER; else if (pa_streq(m, "all-front")) v = PA_CHANNEL_POSITION_MASK_FRONT; else if (pa_streq(m, "all-rear")) v = PA_CHANNEL_POSITION_MASK_REAR; else if (pa_streq(m, "all-side")) v = PA_CHANNEL_POSITION_MASK_SIDE_OR_TOP_CENTER; else if (pa_streq(m, "all-top")) v = PA_CHANNEL_POSITION_MASK_TOP; else if (pa_streq(m, "all-no-lfe")) v = PA_CHANNEL_POSITION_MASK_ALL ^ PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_LFE); else if (pa_streq(m, "all")) v = PA_CHANNEL_POSITION_MASK_ALL; else { pa_channel_position_t p; if ((p = pa_channel_position_from_string(m)) == PA_CHANNEL_POSITION_INVALID) return 0; v = PA_CHANNEL_POSITION_MASK(p); } return v; } static int element_parse_override_map( const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata) { pa_alsa_path *p = userdata; pa_alsa_element *e; const char *state = NULL; unsigned i = 0; char *n; if (!(e = element_get(p, section, TRUE))) { pa_log("[%s:%u] Override map makes no sense in '%s'", filename, line, section); return -1; } while ((n = pa_split(rvalue, ",", &state))) { pa_channel_position_mask_t m; if (!*n) m = 0; else { if ((m = parse_mask(n)) == 0) { pa_log("[%s:%u] Override map '%s' invalid in '%s'", filename, line, n, section); pa_xfree(n); return -1; } } if (pa_streq(lvalue, "override-map.1")) e->masks[i++][0] = m; else e->masks[i++][1] = m; /* Later on we might add override-map.3 and so on here ... */ pa_xfree(n); } e->override_map = TRUE; return 0; } static int element_set_option(pa_alsa_element *e, snd_mixer_t *m, int alsa_idx) { snd_mixer_selem_id_t *sid; snd_mixer_elem_t *me; int r; pa_assert(e); pa_assert(m); SELEM_INIT(sid, e->alsa_name); if (!(me = snd_mixer_find_selem(m, sid))) { pa_log_warn("Element %s seems to have disappeared.", e->alsa_name); return -1; } if (e->switch_use == PA_ALSA_SWITCH_SELECT) { if (e->direction == PA_ALSA_DIRECTION_OUTPUT) r = snd_mixer_selem_set_playback_switch_all(me, alsa_idx); else r = snd_mixer_selem_set_capture_switch_all(me, alsa_idx); if (r < 0) pa_log_warn("Failed to set switch of %s: %s", e->alsa_name, pa_alsa_strerror(errno)); } else { pa_assert(e->enumeration_use == PA_ALSA_ENUMERATION_SELECT); if ((r = snd_mixer_selem_set_enum_item(me, 0, alsa_idx)) < 0) pa_log_warn("Failed to set enumeration of %s: %s", e->alsa_name, pa_alsa_strerror(errno)); } return r; } int pa_alsa_setting_select(pa_alsa_setting *s, snd_mixer_t *m) { pa_alsa_option *o; uint32_t idx; pa_assert(s); pa_assert(m); PA_IDXSET_FOREACH(o, s->options, idx) element_set_option(o->element, m, o->alsa_idx); return 0; } static int option_verify(pa_alsa_option *o) { static const struct description_map well_known_descriptions[] = { { "input", N_("Input") }, { "input-docking", N_("Docking Station Input") }, { "input-docking-microphone", N_("Docking Station Microphone") }, { "input-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") } }; pa_assert(o); if (!o->name) { pa_log("No name set for option %s", o->alsa_name); return -1; } if (o->element->enumeration_use != PA_ALSA_ENUMERATION_SELECT && o->element->switch_use != PA_ALSA_SWITCH_SELECT) { pa_log("Element %s of option %s not set for select.", o->element->alsa_name, o->name); return -1; } if (o->element->switch_use == PA_ALSA_SWITCH_SELECT && !pa_streq(o->alsa_name, "on") && !pa_streq(o->alsa_name, "off")) { pa_log("Switch %s options need be named off or on ", o->element->alsa_name); return -1; } if (!o->description) o->description = pa_xstrdup(lookup_description(o->name, well_known_descriptions, PA_ELEMENTSOF(well_known_descriptions))); if (!o->description) o->description = pa_xstrdup(o->name); return 0; } static int element_verify(pa_alsa_element *e) { pa_alsa_option *o; pa_assert(e); // 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_log("Element %s cannot be required and absent at the same time.", e->alsa_name); return -1; } if (e->switch_use == PA_ALSA_SWITCH_SELECT && e->enumeration_use == PA_ALSA_ENUMERATION_SELECT) { pa_log("Element %s cannot set select for both switch and enumeration.", e->alsa_name); return -1; } PA_LLIST_FOREACH(o, e->options) if (option_verify(o) < 0) return -1; return 0; } static int path_verify(pa_alsa_path *p) { static const struct description_map well_known_descriptions[] = { { "analog-input", N_("Analog Input") }, { "analog-input-microphone", N_("Analog Microphone") }, { "analog-input-microphone-front", N_("Front Microphone") }, { "analog-input-microphone-rear", N_("Rear Microphone") }, { "analog-input-microphone-dock", N_("Docking Station Microphone") }, { "analog-input-microphone-internal", N_("Internal Microphone") }, { "analog-input-linein", N_("Analog Line-In") }, { "analog-input-radio", N_("Analog Radio") }, { "analog-input-video", N_("Analog Video") }, { "analog-output", N_("Analog Output") }, { "analog-output-headphones", N_("Analog Headphones") }, { "analog-output-lfe-on-mono", N_("Analog Output (LFE)") }, { "analog-output-mono", N_("Analog Mono Output") }, { "analog-output-speaker", N_("Analog Speakers") }, { "iec958-stereo-output", N_("Digital Output (IEC958)") }, { "iec958-passthrough-output", N_("Digital Passthrough (IEC958)") } }; pa_alsa_element *e; pa_assert(p); PA_LLIST_FOREACH(e, p->elements) if (element_verify(e) < 0) return -1; if (!p->description) p->description = pa_xstrdup(lookup_description(p->name, well_known_descriptions, PA_ELEMENTSOF(well_known_descriptions))); if (!p->description) p->description = pa_xstrdup(p->name); return 0; } pa_alsa_path* pa_alsa_path_new(const char *fname, pa_alsa_direction_t direction) { pa_alsa_path *p; char *fn; int r; const char *n; pa_config_item items[] = { /* [General] */ { "priority", pa_config_parse_unsigned, NULL, "General" }, { "description", pa_config_parse_string, NULL, "General" }, { "name", pa_config_parse_string, NULL, "General" }, /* [Option ...] */ { "priority", option_parse_priority, NULL, NULL }, { "name", option_parse_name, NULL, NULL }, /* [Element ...] */ { "switch", element_parse_switch, NULL, NULL }, { "volume", element_parse_volume, NULL, NULL }, { "enumeration", element_parse_enumeration, NULL, NULL }, { "override-map.1", element_parse_override_map, NULL, NULL }, { "override-map.2", element_parse_override_map, NULL, NULL }, /* ... later on we might add override-map.3 and so on here ... */ { "required", element_parse_required, NULL, NULL }, { "required-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->direction = direction; items[0].data = &p->priority; items[1].data = &p->description; items[2].data = &p->name; fn = pa_maybe_prefix_path(fname, pa_run_from_build_tree() ? PA_BUILDDIR "/modules/alsa/mixer/paths/" : PA_ALSA_PATHS_DIR); r = pa_config_parse(fn, NULL, items, p); pa_xfree(fn); if (r < 0) goto fail; if (path_verify(p) < 0) goto fail; return p; fail: pa_alsa_path_free(p); return NULL; } pa_alsa_path *pa_alsa_path_synthesize(const char *element, pa_alsa_direction_t direction) { pa_alsa_path *p; pa_alsa_element *e; pa_assert(element); p = pa_xnew0(pa_alsa_path, 1); p->name = pa_xstrdup(element); p->direction = direction; e = pa_xnew0(pa_alsa_element, 1); e->path = p; e->alsa_name = pa_xstrdup(element); e->direction = direction; e->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 pa_bool_t element_drop_unsupported(pa_alsa_element *e) { pa_alsa_option *o, *n; pa_assert(e); for (o = e->options; o; o = n) { n = o->next; if (o->alsa_idx < 0) { PA_LLIST_REMOVE(pa_alsa_option, e->options, o); option_free(o); } } return e->switch_use != PA_ALSA_SWITCH_IGNORE || e->volume_use != PA_ALSA_VOLUME_IGNORE || e->enumeration_use != PA_ALSA_ENUMERATION_IGNORE; } static void path_drop_unsupported(pa_alsa_path *p) { pa_alsa_element *e, *n; pa_assert(p); for (e = p->elements; e; e = n) { n = e->next; if (!element_drop_unsupported(e)) { PA_LLIST_REMOVE(pa_alsa_element, p->elements, e); element_free(e); } } } static void path_make_options_unique(pa_alsa_path *p) { pa_alsa_element *e; pa_alsa_option *o, *u; PA_LLIST_FOREACH(e, p->elements) { PA_LLIST_FOREACH(o, e->options) { unsigned i; char *m; for (u = o->next; u; u = u->next) if (pa_streq(u->name, o->name)) break; if (!u) continue; m = pa_xstrdup(o->name); /* OK, this name is not unique, hence let's rename */ for (i = 1, u = o; u; u = u->next) { char *nn, *nd; if (!pa_streq(u->name, m)) continue; nn = pa_sprintf_malloc("%s-%u", m, i); pa_xfree(u->name); u->name = nn; nd = pa_sprintf_malloc("%s %u", u->description, i); pa_xfree(u->description); u->description = nd; i++; } pa_xfree(m); } } } static pa_bool_t element_create_settings(pa_alsa_element *e, pa_alsa_setting *template) { pa_alsa_option *o; for (; e; e = e->next) if (e->switch_use == PA_ALSA_SWITCH_SELECT || e->enumeration_use == PA_ALSA_ENUMERATION_SELECT) break; if (!e) return FALSE; for (o = e->options; o; o = o->next) { pa_alsa_setting *s; if (template) { s = pa_xnewdup(pa_alsa_setting, template, 1); s->options = pa_idxset_copy(template->options); s->name = pa_sprintf_malloc(_("%s+%s"), template->name, o->name); s->description = (template->description[0] && o->description[0]) ? pa_sprintf_malloc(_("%s / %s"), template->description, o->description) : (template->description[0] ? pa_xstrdup(template->description) : pa_xstrdup(o->description)); s->priority = PA_MAX(template->priority, o->priority); } else { s = pa_xnew0(pa_alsa_setting, 1); s->options = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func); s->name = pa_xstrdup(o->name); s->description = pa_xstrdup(o->description); s->priority = o->priority; } pa_idxset_put(s->options, o, NULL); if (element_create_settings(e->next, s)) /* This is not a leaf, so let's get rid of it */ setting_free(s); else { /* This is a leaf, so let's add it */ PA_LLIST_INSERT_AFTER(pa_alsa_setting, e->path->settings, e->path->last_setting, s); e->path->last_setting = s; } } return TRUE; } static void path_create_settings(pa_alsa_path *p) { pa_assert(p); element_create_settings(p->elements, NULL); } int pa_alsa_path_probe(pa_alsa_path *p, snd_mixer_t *m, pa_bool_t ignore_dB) { pa_alsa_element *e; double min_dB[PA_CHANNEL_POSITION_MAX], max_dB[PA_CHANNEL_POSITION_MAX]; pa_channel_position_t t; pa_channel_position_mask_t path_volume_channels = 0; pa_assert(p); pa_assert(m); if (p->probed) return 0; pa_zero(min_dB); pa_zero(max_dB); pa_log_debug("Probing path '%s'", p->name); PA_LLIST_FOREACH(e, p->elements) { if (element_probe(e, m) < 0) { p->supported = FALSE; pa_log_debug("Probe of element '%s' failed.", e->alsa_name); return -1; } pa_log_debug("Probe of element '%s' succeeded (volume=%d, switch=%d, enumeration=%d).", e->alsa_name, e->volume_use, e->switch_use, e->enumeration_use); 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'", e->alsa_name, 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)", e->alsa_name, 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->probed = TRUE; p->min_dB = INFINITY; p->max_dB = -INFINITY; 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]; if (p->max_dB < max_dB[t]) p->max_dB = max_dB[t]; } } return 0; } void pa_alsa_setting_dump(pa_alsa_setting *s) { pa_assert(s); pa_log_debug("Setting %s (%s) priority=%u", s->name, pa_strnull(s->description), s->priority); } void pa_alsa_option_dump(pa_alsa_option *o) { pa_assert(o); pa_log_debug("Option %s (%s/%s) index=%i, priority=%u", o->alsa_name, pa_strnull(o->name), pa_strnull(o->description), o->alsa_idx, o->priority); } void pa_alsa_element_dump(pa_alsa_element *e) { pa_alsa_option *o; pa_assert(e); pa_log_debug("Element %s, direction=%i, switch=%i, volume=%i, volume_limit=%li, enumeration=%i, required=%i, required_any=%i, required_absent=%i, mask=0x%llx, n_channels=%u, override_map=%s", e->alsa_name, e->direction, e->switch_use, e->volume_use, e->volume_limit, e->enumeration_use, e->required, e->required_any, e->required_absent, (long long unsigned) e->merged_mask, e->n_channels, pa_yes_no(e->override_map)); PA_LLIST_FOREACH(o, e->options) pa_alsa_option_dump(o); } void pa_alsa_path_dump(pa_alsa_path *p) { pa_alsa_element *e; pa_alsa_setting *s; pa_assert(p); pa_log_debug("Path %s (%s), direction=%i, priority=%u, probed=%s, supported=%s, has_mute=%s, has_volume=%s, " "has_dB=%s, min_volume=%li, max_volume=%li, min_dB=%g, max_dB=%g", p->name, pa_strnull(p->description), p->direction, p->priority, pa_yes_no(p->probed), pa_yes_no(p->supported), pa_yes_no(p->has_mute), pa_yes_no(p->has_volume), pa_yes_no(p->has_dB), p->min_volume, p->max_volume, p->min_dB, p->max_dB); PA_LLIST_FOREACH(e, p->elements) pa_alsa_element_dump(e); PA_LLIST_FOREACH(s, p->settings) pa_alsa_setting_dump(s); } static void element_set_callback(pa_alsa_element *e, snd_mixer_t *m, snd_mixer_elem_callback_t cb, void *userdata) { snd_mixer_selem_id_t *sid; snd_mixer_elem_t *me; pa_assert(e); pa_assert(m); pa_assert(cb); SELEM_INIT(sid, e->alsa_name); if (!(me = snd_mixer_find_selem(m, sid))) { pa_log_warn("Element %s seems to have disappeared.", e->alsa_name); return; } snd_mixer_elem_set_callback(me, cb); snd_mixer_elem_set_callback_private(me, userdata); } void pa_alsa_path_set_callback(pa_alsa_path *p, snd_mixer_t *m, snd_mixer_elem_callback_t cb, void *userdata) { pa_alsa_element *e; pa_assert(p); pa_assert(m); pa_assert(cb); PA_LLIST_FOREACH(e, p->elements) element_set_callback(e, m, cb, userdata); } void pa_alsa_path_set_set_callback(pa_alsa_path_set *ps, snd_mixer_t *m, snd_mixer_elem_callback_t cb, void *userdata) { pa_alsa_path *p; pa_assert(ps); pa_assert(m); pa_assert(cb); PA_LLIST_FOREACH(p, ps->paths) pa_alsa_path_set_callback(p, m, cb, userdata); } pa_alsa_path_set *pa_alsa_path_set_new(pa_alsa_mapping *m, pa_alsa_direction_t direction) { pa_alsa_path_set *ps; char **pn = NULL, **en = NULL, **ie; pa_alsa_decibel_fix *db_fix; void *state; 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; if (direction == PA_ALSA_DIRECTION_OUTPUT) pn = m->output_path_names; else if (direction == PA_ALSA_DIRECTION_INPUT) pn = m->input_path_names; if (pn) { char **in; for (in = pn; *in; in++) { pa_alsa_path *p; pa_bool_t duplicate = FALSE; char **kn, *fn; for (kn = pn; kn < in; kn++) if (pa_streq(*kn, *in)) { duplicate = TRUE; break; } if (duplicate) continue; fn = pa_sprintf_malloc("%s.conf", *in); if ((p = pa_alsa_path_new(fn, direction))) { p->path_set = ps; PA_LLIST_INSERT_AFTER(pa_alsa_path, ps->paths, ps->last_path, p); ps->last_path = p; } pa_xfree(fn); } goto finish; } if (direction == PA_ALSA_DIRECTION_OUTPUT) en = m->output_element; else if (direction == PA_ALSA_DIRECTION_INPUT) en = m->input_element; if (!en) { pa_alsa_path_set_free(ps); return NULL; } for (ie = en; *ie; ie++) { char **je; pa_alsa_path *p; p = pa_alsa_path_synthesize(*ie, direction); p->path_set = ps; /* Mark all other passed elements for require-absent */ for (je = en; *je; je++) { pa_alsa_element *e; if (je == ie) continue; e = pa_xnew0(pa_alsa_element, 1); e->path = p; e->alsa_name = pa_xstrdup(*je); e->direction = direction; e->required_absent = PA_ALSA_REQUIRED_ANY; e->volume_limit = -1; PA_LLIST_INSERT_AFTER(pa_alsa_element, p->elements, p->last_element, e); p->last_element = e; } PA_LLIST_INSERT_AFTER(pa_alsa_path, ps->paths, ps->last_path, p); ps->last_path = p; } finish: /* Assign decibel fixes to elements. */ PA_HASHMAP_FOREACH(db_fix, m->profile_set->decibel_fixes, state) { pa_alsa_path *p; PA_LLIST_FOREACH(p, ps->paths) { 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_name)) { /* 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->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; } void pa_alsa_path_set_dump(pa_alsa_path_set *ps) { pa_alsa_path *p; pa_assert(ps); pa_log_debug("Path Set %p, direction=%i, probed=%s", (void*) ps, ps->direction, pa_yes_no(ps->probed)); PA_LLIST_FOREACH(p, ps->paths) pa_alsa_path_dump(p); } static void path_set_unify(pa_alsa_path_set *ps) { pa_alsa_path *p; pa_bool_t has_dB = TRUE, has_volume = TRUE, has_mute = TRUE; pa_assert(ps); /* We have issues dealing with paths that vary too wildly. That * means for now we have to have all paths support volume/mute/dB * or none. */ PA_LLIST_FOREACH(p, ps->paths) { pa_assert(p->probed); if (!p->has_volume) has_volume = FALSE; else if (!p->has_dB) has_dB = FALSE; if (!p->has_mute) has_mute = FALSE; } if (!has_volume || !has_dB || !has_mute) { if (!has_volume) pa_log_debug("Some paths of the device lack hardware volume control, disabling hardware control altogether."); else if (!has_dB) pa_log_debug("Some paths of the device lack dB information, disabling dB logic altogether."); if (!has_mute) pa_log_debug("Some paths of the device lack hardware mute control, disabling hardware control altogether."); PA_LLIST_FOREACH(p, ps->paths) { if (!has_volume) p->has_volume = FALSE; else if (!has_dB) p->has_dB = FALSE; if (!has_mute) p->has_mute = FALSE; } } } static void path_set_make_paths_unique(pa_alsa_path_set *ps) { pa_alsa_path *p, *q; PA_LLIST_FOREACH(p, ps->paths) { unsigned i; char *m; for (q = p->next; q; q = q->next) if (pa_streq(q->name, p->name)) break; if (!q) continue; m = pa_xstrdup(p->name); /* OK, this name is not unique, hence let's rename */ for (i = 1, q = p; q; q = q->next) { char *nn, *nd; if (!pa_streq(q->name, m)) continue; nn = pa_sprintf_malloc("%s-%u", m, i); pa_xfree(q->name); q->name = nn; nd = pa_sprintf_malloc("%s %u", q->description, i); pa_xfree(q->description); q->description = nd; i++; } pa_xfree(m); } } void pa_alsa_path_set_probe(pa_alsa_path_set *ps, snd_mixer_t *m, pa_bool_t ignore_dB) { pa_alsa_path *p, *n; pa_assert(ps); if (ps->probed) return; for (p = ps->paths; p; p = n) { n = p->next; if (pa_alsa_path_probe(p, m, ignore_dB) < 0) { PA_LLIST_REMOVE(pa_alsa_path, ps->paths, p); pa_alsa_path_free(p); } } path_set_unify(ps); path_set_make_paths_unique(ps); ps->probed = TRUE; } static void mapping_free(pa_alsa_mapping *m) { pa_assert(m); pa_xfree(m->name); pa_xfree(m->description); pa_xstrfreev(m->device_strings); pa_xstrfreev(m->input_path_names); pa_xstrfreev(m->output_path_names); pa_xstrfreev(m->input_element); pa_xstrfreev(m->output_element); pa_assert(!m->input_pcm); pa_assert(!m->output_pcm); pa_xfree(m); } static void profile_free(pa_alsa_profile *p) { pa_assert(p); pa_xfree(p->name); pa_xfree(p->description); pa_xstrfreev(p->input_mapping_names); pa_xstrfreev(p->output_mapping_names); if (p->input_mappings) pa_idxset_free(p->input_mappings, NULL, NULL); if (p->output_mappings) pa_idxset_free(p->output_mappings, NULL, NULL); pa_xfree(p); } void pa_alsa_profile_set_free(pa_alsa_profile_set *ps) { pa_assert(ps); if (ps->profiles) { pa_alsa_profile *p; while ((p = pa_hashmap_steal_first(ps->profiles))) profile_free(p); pa_hashmap_free(ps->profiles, NULL, NULL); } if (ps->mappings) { pa_alsa_mapping *m; while ((m = pa_hashmap_steal_first(ps->mappings))) mapping_free(m); pa_hashmap_free(ps->mappings, NULL, NULL); } if (ps->decibel_fixes) { pa_alsa_decibel_fix *db_fix; while ((db_fix = pa_hashmap_steal_first(ps->decibel_fixes))) decibel_fix_free(db_fix); pa_hashmap_free(ps->decibel_fixes, NULL, NULL); } pa_xfree(ps); } static pa_alsa_mapping *mapping_get(pa_alsa_profile_set *ps, const char *name) { pa_alsa_mapping *m; if (!pa_startswith(name, "Mapping ")) return NULL; name += 8; if ((m = pa_hashmap_get(ps->mappings, name))) return m; m = pa_xnew0(pa_alsa_mapping, 1); m->profile_set = ps; m->name = pa_xstrdup(name); pa_channel_map_init(&m->channel_map); pa_hashmap_put(ps->mappings, m->name, m); return m; } static pa_alsa_profile *profile_get(pa_alsa_profile_set *ps, const char *name) { pa_alsa_profile *p; if (!pa_startswith(name, "Profile ")) return NULL; name += 8; if ((p = pa_hashmap_get(ps->profiles, name))) return p; p = pa_xnew0(pa_alsa_profile, 1); p->profile_set = ps; p->name = pa_xstrdup(name); pa_hashmap_put(ps->profiles, p->name, p); return p; } static pa_alsa_decibel_fix *decibel_fix_get(pa_alsa_profile_set *ps, const char *name) { pa_alsa_decibel_fix *db_fix; if (!pa_startswith(name, "DecibelFix ")) return NULL; name += 11; if ((db_fix = pa_hashmap_get(ps->decibel_fixes, name))) return db_fix; db_fix = pa_xnew0(pa_alsa_decibel_fix, 1); db_fix->profile_set = ps; db_fix->name = pa_xstrdup(name); pa_hashmap_put(ps->decibel_fixes, db_fix->name, db_fix); return db_fix; } static int mapping_parse_device_strings( const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata) { pa_alsa_profile_set *ps = userdata; pa_alsa_mapping *m; pa_assert(ps); if (!(m = mapping_get(ps, section))) { pa_log("[%s:%u] %s invalid in section %s", filename, line, lvalue, section); return -1; } pa_xstrfreev(m->device_strings); if (!(m->device_strings = pa_split_spaces_strv(rvalue))) { pa_log("[%s:%u] Device string list empty of '%s'", filename, line, section); return -1; } return 0; } static int mapping_parse_channel_map( const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata) { pa_alsa_profile_set *ps = userdata; pa_alsa_mapping *m; pa_assert(ps); if (!(m = mapping_get(ps, section))) { pa_log("[%s:%u] %s invalid in section %s", filename, line, lvalue, section); return -1; } if (!(pa_channel_map_parse(&m->channel_map, rvalue))) { pa_log("[%s:%u] Channel map invalid of '%s'", filename, line, section); return -1; } return 0; } static int mapping_parse_paths( const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata) { pa_alsa_profile_set *ps = userdata; pa_alsa_mapping *m; pa_assert(ps); if (!(m = mapping_get(ps, section))) { pa_log("[%s:%u] %s invalid in section %s", filename, line, lvalue, section); return -1; } if (pa_streq(lvalue, "paths-input")) { pa_xstrfreev(m->input_path_names); m->input_path_names = pa_split_spaces_strv(rvalue); } else { pa_xstrfreev(m->output_path_names); m->output_path_names = pa_split_spaces_strv(rvalue); } return 0; } static int mapping_parse_element( const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata) { pa_alsa_profile_set *ps = userdata; pa_alsa_mapping *m; pa_assert(ps); if (!(m = mapping_get(ps, section))) { pa_log("[%s:%u] %s invalid in section %s", filename, line, lvalue, section); return -1; } if (pa_streq(lvalue, "element-input")) { pa_xstrfreev(m->input_element); m->input_element = pa_split_spaces_strv(rvalue); } else { pa_xstrfreev(m->output_element); m->output_element = pa_split_spaces_strv(rvalue); } return 0; } static int mapping_parse_direction( const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata) { pa_alsa_profile_set *ps = userdata; pa_alsa_mapping *m; pa_assert(ps); if (!(m = mapping_get(ps, section))) { pa_log("[%s:%u] Section name %s invalid.", filename, line, section); return -1; } if (pa_streq(rvalue, "input")) m->direction = PA_ALSA_DIRECTION_INPUT; else if (pa_streq(rvalue, "output")) m->direction = PA_ALSA_DIRECTION_OUTPUT; else if (pa_streq(rvalue, "any")) m->direction = PA_ALSA_DIRECTION_ANY; else { pa_log("[%s:%u] Direction %s invalid.", filename, line, rvalue); return -1; } return 0; } static int mapping_parse_description( const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata) { pa_alsa_profile_set *ps = userdata; pa_alsa_profile *p; pa_alsa_mapping *m; pa_assert(ps); if ((m = mapping_get(ps, section))) { pa_xfree(m->description); m->description = pa_xstrdup(rvalue); } else if ((p = profile_get(ps, section))) { pa_xfree(p->description); p->description = pa_xstrdup(rvalue); } else { pa_log("[%s:%u] Section name %s invalid.", filename, line, section); return -1; } return 0; } static int mapping_parse_priority( const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata) { pa_alsa_profile_set *ps = userdata; pa_alsa_profile *p; pa_alsa_mapping *m; uint32_t prio; pa_assert(ps); if (pa_atou(rvalue, &prio) < 0) { pa_log("[%s:%u] Priority invalid of '%s'", filename, line, section); return -1; } if ((m = mapping_get(ps, section))) m->priority = prio; else if ((p = profile_get(ps, section))) p->priority = prio; else { pa_log("[%s:%u] Section name %s invalid.", filename, line, section); return -1; } return 0; } static int profile_parse_mappings( const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata) { pa_alsa_profile_set *ps = userdata; pa_alsa_profile *p; pa_assert(ps); if (!(p = profile_get(ps, section))) { pa_log("[%s:%u] %s invalid in section %s", filename, line, lvalue, section); return -1; } if (pa_streq(lvalue, "input-mappings")) { pa_xstrfreev(p->input_mapping_names); p->input_mapping_names = pa_split_spaces_strv(rvalue); } else { pa_xstrfreev(p->output_mapping_names); p->output_mapping_names = pa_split_spaces_strv(rvalue); } return 0; } static int profile_parse_skip_probe( const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata) { pa_alsa_profile_set *ps = userdata; pa_alsa_profile *p; int b; pa_assert(ps); if (!(p = profile_get(ps, section))) { pa_log("[%s:%u] %s invalid in section %s", filename, line, lvalue, section); return -1; } if ((b = pa_parse_boolean(rvalue)) < 0) { pa_log("[%s:%u] Skip probe invalid of '%s'", filename, line, section); return -1; } p->supported = b; return 0; } static int decibel_fix_parse_db_values( const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata) { pa_alsa_profile_set *ps = userdata; pa_alsa_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(filename); pa_assert(section); pa_assert(lvalue); pa_assert(rvalue); pa_assert(ps); if (!(db_fix = decibel_fix_get(ps, section))) { pa_log("[%s:%u] %s invalid in section %s", filename, line, lvalue, section); return -1; } if (!(items = pa_split_spaces_strv(rvalue))) { pa_log("[%s:%u] Value missing", pa_strnull(filename), line); 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", filename, line, 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", filename, line, 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", filename, line, s); goto fail; } if (pa_atod(d, &db) < 0) { pa_log("[%s:%u] Invalid dB value: %s", filename, line, d); goto fail; } if (step <= prev_step && i != 1) { pa_log("[%s:%u] Step value %u not greater than the previous value %u", filename, line, 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", filename, line, 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; } static int mapping_verify(pa_alsa_mapping *m, const pa_channel_map *bonus) { static const struct description_map well_known_descriptions[] = { { "analog-mono", N_("Analog Mono") }, { "analog-stereo", N_("Analog Stereo") }, { "analog-surround-21", N_("Analog Surround 2.1") }, { "analog-surround-30", N_("Analog Surround 3.0") }, { "analog-surround-31", N_("Analog Surround 3.1") }, { "analog-surround-40", N_("Analog Surround 4.0") }, { "analog-surround-41", N_("Analog Surround 4.1") }, { "analog-surround-50", N_("Analog Surround 5.0") }, { "analog-surround-51", N_("Analog Surround 5.1") }, { "analog-surround-61", N_("Analog Surround 6.0") }, { "analog-surround-61", N_("Analog Surround 6.1") }, { "analog-surround-70", N_("Analog Surround 7.0") }, { "analog-surround-71", N_("Analog Surround 7.1") }, { "iec958-stereo", N_("Digital Stereo (IEC958)") }, { "iec958-passthrough", N_("Digital Passthrough (IEC958)") }, { "iec958-ac3-surround-40", N_("Digital Surround 4.0 (IEC958/AC3)") }, { "iec958-ac3-surround-51", N_("Digital Surround 5.1 (IEC958/AC3)") }, { "hdmi-stereo", N_("Digital Stereo (HDMI)") } }; pa_assert(m); if (!pa_channel_map_valid(&m->channel_map)) { pa_log("Mapping %s is missing channel map.", m->name); return -1; } if (!m->device_strings) { pa_log("Mapping %s is missing device strings.", m->name); return -1; } if ((m->input_path_names && m->input_element) || (m->output_path_names && m->output_element)) { pa_log("Mapping %s must have either mixer path or mixer element, not both.", m->name); return -1; } if (!m->description) m->description = pa_xstrdup(lookup_description(m->name, well_known_descriptions, PA_ELEMENTSOF(well_known_descriptions))); if (!m->description) m->description = pa_xstrdup(m->name); if (bonus) { if (pa_channel_map_equal(&m->channel_map, bonus)) m->priority += 50; else if (m->channel_map.channels == bonus->channels) m->priority += 30; } return 0; } void pa_alsa_mapping_dump(pa_alsa_mapping *m) { char cm[PA_CHANNEL_MAP_SNPRINT_MAX]; pa_assert(m); pa_log_debug("Mapping %s (%s), priority=%u, channel_map=%s, supported=%s, direction=%i", m->name, pa_strnull(m->description), m->priority, pa_channel_map_snprint(cm, sizeof(cm), &m->channel_map), pa_yes_no(m->supported), m->direction); } static void profile_set_add_auto_pair( pa_alsa_profile_set *ps, pa_alsa_mapping *m, /* output */ pa_alsa_mapping *n /* input */) { char *name; pa_alsa_profile *p; pa_assert(ps); pa_assert(m || n); if (m && m->direction == PA_ALSA_DIRECTION_INPUT) return; if (n && n->direction == PA_ALSA_DIRECTION_OUTPUT) return; if (m && n) name = pa_sprintf_malloc("output:%s+input:%s", m->name, n->name); else if (m) name = pa_sprintf_malloc("output:%s", m->name); else name = pa_sprintf_malloc("input:%s", n->name); if (pa_hashmap_get(ps->profiles, name)) { pa_xfree(name); return; } p = pa_xnew0(pa_alsa_profile, 1); p->profile_set = ps; p->name = name; if (m) { p->output_mappings = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func); pa_idxset_put(p->output_mappings, m, NULL); p->priority += m->priority * 100; } if (n) { p->input_mappings = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func); pa_idxset_put(p->input_mappings, n, NULL); p->priority += n->priority; } pa_hashmap_put(ps->profiles, p->name, p); } static void profile_set_add_auto(pa_alsa_profile_set *ps) { pa_alsa_mapping *m, *n; void *m_state, *n_state; pa_assert(ps); PA_HASHMAP_FOREACH(m, ps->mappings, m_state) { profile_set_add_auto_pair(ps, m, NULL); PA_HASHMAP_FOREACH(n, ps->mappings, n_state) profile_set_add_auto_pair(ps, m, n); } PA_HASHMAP_FOREACH(n, ps->mappings, n_state) profile_set_add_auto_pair(ps, NULL, n); } static int profile_verify(pa_alsa_profile *p) { static const struct description_map well_known_descriptions[] = { { "output:analog-mono+input:analog-mono", N_("Analog Mono Duplex") }, { "output:analog-stereo+input:analog-stereo", N_("Analog Stereo Duplex") }, { "output:iec958-stereo+input:iec958-stereo", N_("Digital Stereo Duplex (IEC958)") }, { "off", N_("Off") } }; pa_assert(p); /* Replace the output mapping names by the actual mappings */ if (p->output_mapping_names) { char **name; pa_assert(!p->output_mappings); p->output_mappings = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func); for (name = p->output_mapping_names; *name; name++) { pa_alsa_mapping *m; char **in; pa_bool_t duplicate = FALSE; for (in = name + 1; *in; in++) if (pa_streq(*name, *in)) { duplicate = TRUE; break; } if (duplicate) continue; if (!(m = pa_hashmap_get(p->profile_set->mappings, *name)) || m->direction == PA_ALSA_DIRECTION_INPUT) { pa_log("Profile '%s' refers to unexistant mapping '%s'.", p->name, *name); return -1; } pa_idxset_put(p->output_mappings, m, NULL); if (p->supported) m->supported++; } pa_xstrfreev(p->output_mapping_names); p->output_mapping_names = NULL; } /* Replace the input mapping names by the actual mappings */ if (p->input_mapping_names) { char **name; pa_assert(!p->input_mappings); p->input_mappings = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func); for (name = p->input_mapping_names; *name; name++) { pa_alsa_mapping *m; char **in; pa_bool_t duplicate = FALSE; for (in = name + 1; *in; in++) if (pa_streq(*name, *in)) { duplicate = TRUE; break; } if (duplicate) continue; if (!(m = pa_hashmap_get(p->profile_set->mappings, *name)) || m->direction == PA_ALSA_DIRECTION_OUTPUT) { pa_log("Profile '%s' refers to unexistant mapping '%s'.", p->name, *name); return -1; } pa_idxset_put(p->input_mappings, m, NULL); if (p->supported) m->supported++; } pa_xstrfreev(p->input_mapping_names); p->input_mapping_names = NULL; } if (!p->input_mappings && !p->output_mappings) { pa_log("Profile '%s' lacks mappings.", p->name); return -1; } if (!p->description) p->description = pa_xstrdup(lookup_description(p->name, well_known_descriptions, PA_ELEMENTSOF(well_known_descriptions))); if (!p->description) { pa_strbuf *sb; uint32_t idx; pa_alsa_mapping *m; sb = pa_strbuf_new(); if (p->output_mappings) PA_IDXSET_FOREACH(m, p->output_mappings, idx) { if (!pa_strbuf_isempty(sb)) pa_strbuf_puts(sb, " + "); pa_strbuf_printf(sb, _("%s Output"), m->description); } if (p->input_mappings) PA_IDXSET_FOREACH(m, p->input_mappings, idx) { if (!pa_strbuf_isempty(sb)) pa_strbuf_puts(sb, " + "); pa_strbuf_printf(sb, _("%s Input"), m->description); } p->description = pa_strbuf_tostring_free(sb); } return 0; } void pa_alsa_profile_dump(pa_alsa_profile *p) { uint32_t idx; pa_alsa_mapping *m; pa_assert(p); pa_log_debug("Profile %s (%s), priority=%u, supported=%s n_input_mappings=%u, n_output_mappings=%u", p->name, pa_strnull(p->description), p->priority, pa_yes_no(p->supported), p->input_mappings ? pa_idxset_size(p->input_mappings) : 0, p->output_mappings ? pa_idxset_size(p->output_mappings) : 0); if (p->input_mappings) PA_IDXSET_FOREACH(m, p->input_mappings, idx) pa_log_debug("Input %s", m->name); if (p->output_mappings) PA_IDXSET_FOREACH(m, p->output_mappings, idx) pa_log_debug("Output %s", m->name); } 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) { pa_strbuf *buf; unsigned long i, nsteps; pa_assert(db_fix->min_step <= db_fix->max_step); nsteps = db_fix->max_step - db_fix->min_step + 1; buf = pa_strbuf_new(); for (i = 0; i < nsteps; ++i) pa_strbuf_printf(buf, "[%li]:%0.2f ", i + db_fix->min_step, db_fix->db_values[i] / 100.0); db_values = pa_strbuf_tostring_free(buf); } 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); } 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 }, /* Shared by [Mapping ...] and [Profile ...] */ { "description", mapping_parse_description, NULL, NULL }, { "priority", mapping_parse_priority, NULL, NULL }, /* [Profile ...] */ { "input-mappings", profile_parse_mappings, NULL, NULL }, { "output-mappings", profile_parse_mappings, NULL, NULL }, { "skip-probe", profile_parse_skip_probe, NULL, NULL }, /* [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(pa_idxset_string_hash_func, pa_idxset_string_compare_func); ps->profiles = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func); ps->decibel_fixes = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func); items[0].data = &ps->auto_profiles; if (!fname) fname = "default.conf"; fn = pa_maybe_prefix_path(fname, pa_run_from_build_tree() ? PA_BUILDDIR "/modules/alsa/mixer/profile-sets/" : PA_ALSA_PROFILE_SETS_DIR); r = pa_config_parse(fn, NULL, items, ps); pa_xfree(fn); if (r < 0) goto fail; PA_HASHMAP_FOREACH(m, ps->mappings, state) if (mapping_verify(m, bonus) < 0) goto fail; if (ps->auto_profiles) profile_set_add_auto(ps); PA_HASHMAP_FOREACH(p, ps->profiles, state) if (profile_verify(p) < 0) goto fail; 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; } void pa_alsa_profile_set_probe( pa_alsa_profile_set *ps, const char *dev_id, const pa_sample_spec *ss, unsigned default_n_fragments, unsigned default_fragment_size_msec) { void *state; pa_alsa_profile *p, *last = NULL; pa_alsa_mapping *m; pa_assert(ps); pa_assert(dev_id); pa_assert(ss); if (ps->probed) return; PA_HASHMAP_FOREACH(p, ps->profiles, state) { pa_sample_spec try_ss; pa_channel_map try_map; snd_pcm_uframes_t try_period_size, try_buffer_size; uint32_t idx; /* Is this already marked that it is supported? (i.e. from the config file) */ if (p->supported) continue; pa_log_debug("Looking at profile %s", p->name); /* Close PCMs from the last iteration we don't need anymore */ if (last && last->output_mappings) PA_IDXSET_FOREACH(m, last->output_mappings, idx) { if (!m->output_pcm) break; if (last->supported) m->supported++; if (!p->output_mappings || !pa_idxset_get_by_data(p->output_mappings, m, NULL)) { snd_pcm_close(m->output_pcm); m->output_pcm = NULL; } } if (last && last->input_mappings) PA_IDXSET_FOREACH(m, last->input_mappings, idx) { if (!m->input_pcm) break; if (last->supported) m->supported++; if (!p->input_mappings || !pa_idxset_get_by_data(p->input_mappings, m, NULL)) { snd_pcm_close(m->input_pcm); m->input_pcm = NULL; } } p->supported = TRUE; /* Check if we can open all new ones */ if (p->output_mappings) PA_IDXSET_FOREACH(m, p->output_mappings, idx) { if (m->output_pcm) continue; pa_log_debug("Checking for playback on %s (%s)", m->description, m->name); try_map = m->channel_map; try_ss = *ss; try_ss.channels = try_map.channels; try_period_size = pa_usec_to_bytes(default_fragment_size_msec * PA_USEC_PER_MSEC, &try_ss) / pa_frame_size(&try_ss); try_buffer_size = default_n_fragments * try_period_size; if (!(m ->output_pcm = pa_alsa_open_by_template( m->device_strings, dev_id, NULL, &try_ss, &try_map, SND_PCM_STREAM_PLAYBACK, &try_period_size, &try_buffer_size, 0, NULL, NULL, TRUE))) { p->supported = FALSE; break; } } if (p->input_mappings && p->supported) PA_IDXSET_FOREACH(m, p->input_mappings, idx) { if (m->input_pcm) continue; pa_log_debug("Checking for recording on %s (%s)", m->description, m->name); try_map = m->channel_map; try_ss = *ss; try_ss.channels = try_map.channels; try_period_size = pa_usec_to_bytes(default_fragment_size_msec*PA_USEC_PER_MSEC, &try_ss) / pa_frame_size(&try_ss); try_buffer_size = default_n_fragments * try_period_size; if (!(m ->input_pcm = pa_alsa_open_by_template( m->device_strings, dev_id, NULL, &try_ss, &try_map, SND_PCM_STREAM_CAPTURE, &try_period_size, &try_buffer_size, 0, NULL, NULL, TRUE))) { p->supported = FALSE; break; } } last = p; if (p->supported) pa_log_debug("Profile %s supported.", p->name); } /* Clean up */ if (last) { uint32_t idx; if (last->output_mappings) PA_IDXSET_FOREACH(m, last->output_mappings, idx) if (m->output_pcm) { if (last->supported) m->supported++; snd_pcm_close(m->output_pcm); m->output_pcm = NULL; } if (last->input_mappings) PA_IDXSET_FOREACH(m, last->input_mappings, idx) if (m->input_pcm) { if (last->supported) m->supported++; snd_pcm_close(m->input_pcm); m->input_pcm = NULL; } } PA_HASHMAP_FOREACH(p, ps->profiles, state) if (!p->supported) { pa_hashmap_remove(ps->profiles, p->name); profile_free(p); } PA_HASHMAP_FOREACH(m, ps->mappings, state) if (m->supported <= 0) { pa_hashmap_remove(ps->mappings, m->name); mapping_free(m); } ps->probed = TRUE; } void pa_alsa_profile_set_dump(pa_alsa_profile_set *ps) { pa_alsa_profile *p; pa_alsa_mapping *m; 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_add_ports(pa_hashmap **p, pa_alsa_path_set *ps) { pa_alsa_path *path; pa_assert(p); pa_assert(!*p); pa_assert(ps); /* if there is no path, we don't want a port list */ if (!ps->paths) return; if (!ps->paths->next){ pa_alsa_setting *s; /* If there is only one path, but no or only one setting, then * we want a port list either */ if (!ps->paths->settings || !ps->paths->settings->next) return; /* Ok, there is only one path, however with multiple settings, * so let's create a port for each setting */ *p = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func); PA_LLIST_FOREACH(s, ps->paths->settings) { pa_device_port *port; pa_alsa_port_data *data; port = pa_device_port_new(s->name, s->description, sizeof(pa_alsa_port_data)); port->priority = s->priority; data = PA_DEVICE_PORT_DATA(port); data->path = ps->paths; data->setting = s; pa_hashmap_put(*p, port->name, port); } } else { /* We have multiple paths, so let's create a port for each * one, and each of each settings */ *p = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func); PA_LLIST_FOREACH(path, ps->paths) { if (!path->settings || !path->settings->next) { pa_device_port *port; pa_alsa_port_data *data; /* If there is no or just one setting we only need a * single entry */ port = pa_device_port_new(path->name, path->description, sizeof(pa_alsa_port_data)); port->priority = path->priority * 100; data = PA_DEVICE_PORT_DATA(port); data->path = path; data->setting = path->settings; pa_hashmap_put(*p, port->name, port); } else { pa_alsa_setting *s; PA_LLIST_FOREACH(s, path->settings) { pa_device_port *port; pa_alsa_port_data *data; char *n, *d; n = pa_sprintf_malloc("%s;%s", path->name, s->name); if (s->description[0]) d = pa_sprintf_malloc(_("%s / %s"), path->description, s->description); else d = pa_xstrdup(path->description); port = pa_device_port_new(n, d, sizeof(pa_alsa_port_data)); port->priority = path->priority * 100 + s->priority; pa_xfree(n); pa_xfree(d); data = PA_DEVICE_PORT_DATA(port); data->path = path; data->setting = s; pa_hashmap_put(*p, port->name, port); } } } } pa_log_debug("Added %u ports", pa_hashmap_size(*p)); }