1 #ifndef fooalsautilhfoo
2 #define fooalsautilhfoo
5 This file is part of PulseAudio.
7 Copyright 2004-2006 Lennart Poettering
8 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
10 PulseAudio is free software; you can redistribute it and/or modify
11 it under the terms of the GNU Lesser General Public License as published
12 by the Free Software Foundation; either version 2 of the License,
13 or (at your option) any later version.
15 PulseAudio is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 General Public License for more details.
20 You should have received a copy of the GNU Lesser General Public License
21 along with PulseAudio; if not, write to the Free Software
22 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
26 #include <asoundlib.h>
28 #include <pulse/sample.h>
29 #include <pulse/volume.h>
30 #include <pulse/mainloop-api.h>
31 #include <pulse/channelmap.h>
32 #include <pulse/proplist.h>
34 #include <pulsecore/rtpoll.h>
36 typedef struct pa_alsa_fdlist pa_alsa_fdlist
;
38 struct pa_alsa_fdlist
*pa_alsa_fdlist_new(void);
39 void pa_alsa_fdlist_free(struct pa_alsa_fdlist
*fdl
);
40 int pa_alsa_fdlist_set_mixer(struct pa_alsa_fdlist
*fdl
, snd_mixer_t
*mixer_handle
, pa_mainloop_api
* m
);
42 int pa_alsa_set_hw_params(
43 snd_pcm_t
*pcm_handle
,
46 snd_pcm_uframes_t
*period_size
,
47 snd_pcm_uframes_t tsched_size
,
49 pa_bool_t
*use_tsched
,
50 pa_bool_t require_exact_channel_number
);
52 int pa_alsa_set_sw_params(snd_pcm_t
*pcm
, snd_pcm_uframes_t avail_min
);
54 int pa_alsa_prepare_mixer(snd_mixer_t
*mixer
, const char *dev
);
55 snd_mixer_elem_t
*pa_alsa_find_elem(snd_mixer_t
*mixer
, const char *name
, const char *fallback
, pa_bool_t playback
);
57 snd_pcm_t
*pa_alsa_open_by_device_id(
64 snd_pcm_uframes_t
*period_size
,
65 snd_pcm_uframes_t tsched_size
,
67 pa_bool_t
*use_tsched
,
68 const char **config_name
,
69 const char **config_description
);
71 snd_pcm_t
*pa_alsa_open_by_device_string(
78 snd_pcm_uframes_t
*period_size
,
79 snd_pcm_uframes_t tsched_size
,
81 pa_bool_t
*use_tsched
,
82 pa_bool_t require_exact_channel_number
);
84 typedef struct pa_alsa_profile_info
{
86 const char *alsa_name
;
87 const char *description
;
90 } pa_alsa_profile_info
;
92 int pa_alsa_probe_profiles(
94 const pa_sample_spec
*ss
,
95 void (*cb
)(const pa_alsa_profile_info
*sink
, const pa_alsa_profile_info
*source
, void *userdata
),
98 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
);
100 void pa_alsa_dump(snd_pcm_t
*pcm
);
101 void pa_alsa_dump_status(snd_pcm_t
*pcm
);
103 void pa_alsa_redirect_errors_inc(void);
104 void pa_alsa_redirect_errors_dec(void);
106 void pa_alsa_init_proplist_pcm(pa_proplist
*p
, snd_pcm_info_t
*pcm_info
);
107 void pa_alsa_init_proplist_card(pa_proplist
*p
, int card
);
109 int pa_alsa_recover_from_poll(snd_pcm_t
*pcm
, int revents
);
111 pa_rtpoll_item
* pa_alsa_build_pollfd(snd_pcm_t
*pcm
, pa_rtpoll
*rtpoll
);
113 snd_pcm_sframes_t
pa_alsa_safe_avail_update(snd_pcm_t
*pcm
, size_t hwbuf_size
, const pa_sample_spec
*ss
);
114 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
);