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https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
synced 2025-11-05 13:29:57 -05:00
alsa: rework mixer logic
Completely rework mixer logic. This now allows controlling a full set of elements from a single sink's volume slider/mute button. This also introduces sink and source "ports" that can be used to choose different input or output ports with the UI. (i.e. "mic"/"line-in" or "speaker"/"headphones". The mixer paths and device maps are now configered in external configuration files and can be tweaked as necessary.
This commit is contained in:
Lennart Poettering
parent
e9c70ac41b
commit
31575f7766
54 changed files with 7029 additions and 1694 deletions
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@ -30,95 +30,86 @@
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#include <pulse/mainloop-api.h>
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#include <pulse/channelmap.h>
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#include <pulse/proplist.h>
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#include <pulse/volume.h>
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#include <pulsecore/llist.h>
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#include <pulsecore/rtpoll.h>
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#include <pulsecore/core.h>
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#include <pulsecore/log.h>
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typedef struct pa_alsa_fdlist pa_alsa_fdlist;
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struct pa_alsa_fdlist *pa_alsa_fdlist_new(void);
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void pa_alsa_fdlist_free(struct pa_alsa_fdlist *fdl);
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int pa_alsa_fdlist_set_mixer(struct pa_alsa_fdlist *fdl, snd_mixer_t *mixer_handle, pa_mainloop_api* m);
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#include "alsa-mixer.h"
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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,
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uint32_t *periods,
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snd_pcm_uframes_t *period_size,
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pa_sample_spec *ss, /* modified at return */
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uint32_t *periods, /* modified at return */
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snd_pcm_uframes_t *period_size, /* modified at return */
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snd_pcm_uframes_t tsched_size,
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pa_bool_t *use_mmap,
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pa_bool_t *use_tsched,
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pa_bool_t *use_mmap, /* modified at return */
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pa_bool_t *use_tsched, /* modified at return */
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pa_bool_t require_exact_channel_number);
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int pa_alsa_set_sw_params(snd_pcm_t *pcm, snd_pcm_uframes_t avail_min);
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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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typedef struct pa_alsa_profile_info {
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pa_channel_map map;
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const char *alsa_name;
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const char *alsa_name_fallback;
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const char *description; /* internationalized */
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const char *name;
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unsigned priority;
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const char *playback_control_name, *playback_control_fallback;
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const char *record_control_name, *record_control_fallback;
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} pa_alsa_profile_info;
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int pa_alsa_prepare_mixer(snd_mixer_t *mixer, const char *dev);
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snd_mixer_elem_t *pa_alsa_find_elem(snd_mixer_t *mixer, const char *name, const char *fallback, pa_bool_t playback);
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int pa_alsa_find_mixer_and_elem(snd_pcm_t *pcm, char **ctl_device, snd_mixer_t **_m, snd_mixer_elem_t **_e, const char *control_name, const pa_alsa_profile_info*profile);
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void pa_alsa_init_proplist_ctl(pa_proplist *p, const char *name);
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/* Picks a working profile based on the specified ss/map */
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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,
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pa_sample_spec *ss,
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pa_channel_map* map,
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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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uint32_t *nfrags,
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snd_pcm_uframes_t *period_size,
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uint32_t *nfrags, /* modified at return */
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snd_pcm_uframes_t *period_size, /* modified at return */
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snd_pcm_uframes_t tsched_size,
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pa_bool_t *use_mmap,
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pa_bool_t *use_tsched,
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const pa_alsa_profile_info **profile);
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pa_bool_t *use_mmap, /* modified at return */
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pa_bool_t *use_tsched, /* 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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/* Uses the specified profile */
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snd_pcm_t *pa_alsa_open_by_device_id_profile(
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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,
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pa_sample_spec *ss,
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pa_channel_map* map,
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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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uint32_t *nfrags,
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snd_pcm_uframes_t *period_size,
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uint32_t *nfrags, /* modified at return */
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snd_pcm_uframes_t *period_size, /* modified at return */
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snd_pcm_uframes_t tsched_size,
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pa_bool_t *use_mmap,
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pa_bool_t *use_tsched,
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const pa_alsa_profile_info *profile);
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pa_bool_t *use_mmap, /* modified at return */
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pa_bool_t *use_tsched, /* 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 *device,
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char **dev,
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pa_sample_spec *ss,
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pa_channel_map* map,
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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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uint32_t *nfrags,
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snd_pcm_uframes_t *period_size,
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uint32_t *nfrags, /* modified at return */
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snd_pcm_uframes_t *period_size, /* modified at return */
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snd_pcm_uframes_t tsched_size,
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pa_bool_t *use_mmap,
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pa_bool_t *use_tsched,
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pa_bool_t *use_mmap, /* modified at return */
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pa_bool_t *use_tsched, /* modified at return */
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pa_bool_t require_exact_channel_number);
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int pa_alsa_probe_profiles(
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/* Opens the explicit ALSA device with a fallback list */
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snd_pcm_t *pa_alsa_open_by_device_string_strv(
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char **device,
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const char *dev_id,
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const pa_sample_spec *ss,
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void (*cb)(const pa_alsa_profile_info *sink, const pa_alsa_profile_info *source, void *userdata),
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void *userdata);
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int pa_alsa_calc_mixer_map(snd_mixer_elem_t *elem, const pa_channel_map *channel_map, snd_mixer_selem_channel_id_t mixer_map[], pa_bool_t playback);
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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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uint32_t *nfrags, /* modified at return */
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snd_pcm_uframes_t *period_size, /* modified at return */
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snd_pcm_uframes_t tsched_size,
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pa_bool_t *use_mmap, /* modified at return */
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pa_bool_t *use_tsched, /* modified at return */
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pa_bool_t require_exact_channel_number);
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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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@ -128,7 +119,8 @@ void pa_alsa_redirect_errors_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, snd_mixer_elem_t *elem);
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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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pa_bool_t pa_alsa_init_description(pa_proplist *p);
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int pa_alsa_recover_from_poll(snd_pcm_t *pcm, int revents);
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@ -140,13 +132,11 @@ int pa_alsa_safe_delay(snd_pcm_t *pcm, snd_pcm_sframes_t *delay, size_t hwbuf_si
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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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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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pa_bool_t pa_alsa_pcm_is_hw(snd_pcm_t *pcm);
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pa_bool_t pa_alsa_pcm_is_modem(snd_pcm_t *pcm);
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const char* pa_alsa_strerror(int errnum);
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