1 #ifndef fooalsautilhfoo
2 #define fooalsautilhfoo
7 This file is part of PulseAudio.
9 Copyright 2004-2006 Lennart Poettering
10 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
12 PulseAudio is free software; you can redistribute it and/or modify
13 it under the terms of the GNU Lesser General Public License as published
14 by the Free Software Foundation; either version 2 of the License,
15 or (at your option) any later version.
17 PulseAudio is distributed in the hope that it will be useful, but
18 WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 General Public License for more details.
22 You should have received a copy of the GNU Lesser General Public License
23 along with PulseAudio; if not, write to the Free Software
24 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
28 #include <asoundlib.h>
30 #include <pulse/sample.h>
31 #include <pulse/mainloop-api.h>
32 #include <pulse/channelmap.h>
33 #include <pulse/proplist.h>
35 #include <pulsecore/rtpoll.h>
37 typedef struct pa_alsa_fdlist pa_alsa_fdlist;
39 struct pa_alsa_fdlist *pa_alsa_fdlist_new(void);
40 void pa_alsa_fdlist_free(struct pa_alsa_fdlist *fdl);
41 int pa_alsa_fdlist_set_mixer(struct pa_alsa_fdlist *fdl, snd_mixer_t *mixer_handle, pa_mainloop_api* m);
43 int pa_alsa_set_hw_params(
44 snd_pcm_t *pcm_handle,
47 snd_pcm_uframes_t *period_size,
48 snd_pcm_uframes_t tsched_size,
50 pa_bool_t *use_tsched,
51 pa_bool_t require_exact_channel_number);
53 int pa_alsa_set_sw_params(snd_pcm_t *pcm, snd_pcm_uframes_t avail_min);
55 int pa_alsa_prepare_mixer(snd_mixer_t *mixer, const char *dev);
56 snd_mixer_elem_t *pa_alsa_find_elem(snd_mixer_t *mixer, const char *name, const char *fallback);
58 snd_pcm_t *pa_alsa_open_by_device_id(
65 snd_pcm_uframes_t *period_size,
66 snd_pcm_uframes_t tsched_size,
68 pa_bool_t *use_tsched);
70 snd_pcm_t *pa_alsa_open_by_device_string(
77 snd_pcm_uframes_t *period_size,
78 snd_pcm_uframes_t tsched_size,
80 pa_bool_t *use_tsched);
82 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);
84 void pa_alsa_0dB_playback(snd_mixer_elem_t *elem);
85 void pa_alsa_0dB_capture(snd_mixer_elem_t *elem);
87 void pa_alsa_dump(snd_pcm_t *pcm);
88 void pa_alsa_dump_status(snd_pcm_t *pcm);
90 void pa_alsa_redirect_errors_inc(void);
91 void pa_alsa_redirect_errors_dec(void);
93 void pa_alsa_init_proplist(pa_proplist *p, snd_pcm_info_t *pcm_info);
95 int pa_alsa_recover_from_poll(snd_pcm_t *pcm, int revents);
97 pa_rtpoll_item* pa_alsa_build_pollfd(snd_pcm_t *pcm, pa_rtpoll *rtpoll);