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185 lines
7.5 KiB
C
185 lines
7.5 KiB
C
#ifndef fooalsautilhfoo
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#define fooalsautilhfoo
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/***
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This file is part of PulseAudio.
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Copyright 2004-2006 Lennart Poettering
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Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
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PulseAudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2.1 of the License,
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or (at your option) any later version.
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PulseAudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
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***/
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#include <stdbool.h>
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#include <alsa/asoundlib.h>
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#include "compat.h"
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#include "alsa-mixer.h"
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enum {
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PA_ALSA_ERR_UNSPECIFIED = 1,
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PA_ALSA_ERR_UCM_OPEN = 1000,
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PA_ALSA_ERR_UCM_NO_VERB = 1001,
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PA_ALSA_ERR_UCM_LINKED = 1002
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};
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int pa_alsa_set_hw_params(
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snd_pcm_t *pcm_handle,
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pa_sample_spec *ss, /* modified at return */
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snd_pcm_uframes_t *period_size, /* modified at return */
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snd_pcm_uframes_t *buffer_size, /* modified at return */
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snd_pcm_uframes_t tsched_size,
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bool *use_mmap, /* modified at return */
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bool *use_tsched, /* modified at return */
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bool require_exact_channel_number);
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int pa_alsa_set_sw_params(
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snd_pcm_t *pcm,
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snd_pcm_uframes_t avail_min,
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bool period_event);
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#if 0
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/* Picks a working mapping from the profile set based on the specified ss/map */
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snd_pcm_t *pa_alsa_open_by_device_id_auto(
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const char *dev_id,
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char **dev, /* modified at return */
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pa_sample_spec *ss, /* modified at return */
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pa_channel_map* map, /* modified at return */
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int mode,
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snd_pcm_uframes_t *period_size, /* modified at return */
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snd_pcm_uframes_t *buffer_size, /* modified at return */
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snd_pcm_uframes_t tsched_size,
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bool *use_mmap, /* modified at return */
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bool *use_tsched, /* modified at return */
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pa_sample_format_t **query_supported_formats, /* modified at return */
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unsigned int **query_supported_rates, /* modified at return */
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pa_alsa_profile_set *ps,
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pa_alsa_mapping **mapping); /* modified at return */
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#endif
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/* Uses the specified mapping */
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snd_pcm_t *pa_alsa_open_by_device_id_mapping(
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const char *dev_id,
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char **dev, /* modified at return */
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pa_sample_spec *ss, /* modified at return */
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pa_channel_map* map, /* modified at return */
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int mode,
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snd_pcm_uframes_t *period_size, /* modified at return */
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snd_pcm_uframes_t *buffer_size, /* modified at return */
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snd_pcm_uframes_t tsched_size,
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bool *use_mmap, /* modified at return */
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bool *use_tsched, /* modified at return */
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pa_sample_format_t **query_supported_formats, /* modified at return */
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unsigned int **query_supported_rates, /* modified at return */
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pa_alsa_mapping *mapping);
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/* Opens the explicit ALSA device */
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snd_pcm_t *pa_alsa_open_by_device_string(
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const char *dir,
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char **dev, /* modified at return */
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pa_sample_spec *ss, /* modified at return */
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pa_channel_map* map, /* modified at return */
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int mode,
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snd_pcm_uframes_t *period_size, /* modified at return */
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snd_pcm_uframes_t *buffer_size, /* modified at return */
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snd_pcm_uframes_t tsched_size,
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bool *use_mmap, /* modified at return */
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bool *use_tsched, /* modified at return */
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pa_sample_format_t **query_supported_formats, /* modified at return */
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unsigned int **query_supported_rates, /* modified at return */
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bool require_exact_channel_number);
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/* Opens the explicit ALSA device with a fallback list */
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snd_pcm_t *pa_alsa_open_by_template(
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char **template,
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const char *dev_id,
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char **dev, /* modified at return */
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pa_sample_spec *ss, /* modified at return */
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pa_channel_map* map, /* modified at return */
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int mode,
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snd_pcm_uframes_t *period_size, /* modified at return */
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snd_pcm_uframes_t *buffer_size, /* modified at return */
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snd_pcm_uframes_t tsched_size,
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bool *use_mmap, /* modified at return */
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bool *use_tsched, /* modified at return */
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pa_sample_format_t **query_supported_formats, /* modified at return */
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unsigned int **query_supported_rates, /* modified at return */
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bool require_exact_channel_number);
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#if 0
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void pa_alsa_dump(pa_log_level_t level, snd_pcm_t *pcm);
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void pa_alsa_dump_status(snd_pcm_t *pcm);
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#endif
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int pa_alsa_close(snd_pcm_t **pcm);
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void pa_alsa_refcnt_inc(void);
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void pa_alsa_refcnt_dec(void);
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void pa_alsa_init_proplist_pcm_info(pa_core *c, pa_proplist *p, snd_pcm_info_t *pcm_info);
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void pa_alsa_init_proplist_card(pa_core *c, pa_proplist *p, int card);
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void pa_alsa_init_proplist_pcm(pa_core *c, pa_proplist *p, snd_pcm_t *pcm);
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void pa_alsa_init_proplist_ctl(pa_proplist *p, const char *name);
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bool pa_alsa_init_description(pa_proplist *p, pa_card *card);
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#if 0
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int pa_alsa_recover_from_poll(snd_pcm_t *pcm, int revents);
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pa_rtpoll_item* pa_alsa_build_pollfd(snd_pcm_t *pcm, pa_rtpoll *rtpoll);
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snd_pcm_sframes_t pa_alsa_safe_avail(snd_pcm_t *pcm, size_t hwbuf_size, const pa_sample_spec *ss);
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int pa_alsa_safe_delay(snd_pcm_t *pcm, snd_pcm_status_t *status, snd_pcm_sframes_t *delay, size_t hwbuf_size, const pa_sample_spec *ss, bool capture);
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int pa_alsa_safe_mmap_begin(snd_pcm_t *pcm, const snd_pcm_channel_area_t **areas, snd_pcm_uframes_t *offset, snd_pcm_uframes_t *frames, size_t hwbuf_size, const pa_sample_spec *ss);
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#endif
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char *pa_alsa_get_driver_name(int card);
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char *pa_alsa_get_driver_name_by_pcm(snd_pcm_t *pcm);
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char *pa_alsa_get_reserve_name(const char *device);
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unsigned int *pa_alsa_get_supported_rates(snd_pcm_t *pcm, unsigned int fallback_rate);
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pa_sample_format_t *pa_alsa_get_supported_formats(snd_pcm_t *pcm, pa_sample_format_t fallback_format);
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bool pa_alsa_pcm_is_hw(snd_pcm_t *pcm);
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bool pa_alsa_pcm_is_modem(snd_pcm_t *pcm);
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const char* pa_alsa_strerror(int errnum);
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#if 0
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bool pa_alsa_may_tsched(bool want);
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#endif
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snd_mixer_elem_t *pa_alsa_mixer_find_card(snd_mixer_t *mixer, struct pa_alsa_mixer_id *alsa_id, unsigned int device);
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snd_mixer_elem_t *pa_alsa_mixer_find_pcm(snd_mixer_t *mixer, const char *name, unsigned int device);
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snd_mixer_t *pa_alsa_open_mixer(pa_hashmap *mixers, int alsa_card_index, bool probe);
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snd_mixer_t *pa_alsa_open_mixer_by_name(pa_hashmap *mixers, const char *dev, bool probe);
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snd_mixer_t *pa_alsa_open_mixer_for_pcm(pa_hashmap *mixers, snd_pcm_t *pcm, bool probe);
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#if 0
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void pa_alsa_mixer_set_fdlist(pa_hashmap *mixers, snd_mixer_t *mixer, pa_mainloop_api *ml);
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#endif
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void pa_alsa_mixer_free(pa_alsa_mixer *mixer);
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typedef struct pa_hdmi_eld pa_hdmi_eld;
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struct pa_hdmi_eld {
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char monitor_name[17];
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uint8_t speakers;
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uint64_t iec958_codecs;
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uint8_t lpcm_channels;
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};
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int pa_alsa_get_hdmi_eld(snd_hctl_elem_t *elem, pa_hdmi_eld *eld);
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#endif
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