71 строка
2.5 KiB
C
71 строка
2.5 KiB
C
/*
|
|
* pcm_local.h - a local header file for snd-pcm module.
|
|
*
|
|
* Copyright (c) Takashi Sakamoto <o-takashi@sakamocchi.jp>
|
|
*
|
|
* Licensed under the terms of the GNU General Public License, version 2.
|
|
*/
|
|
|
|
#ifndef __SOUND_CORE_PCM_LOCAL_H
|
|
#define __SOUND_CORE_PCM_LOCAL_H
|
|
|
|
extern const struct snd_pcm_hw_constraint_list snd_pcm_known_rates;
|
|
|
|
void snd_interval_mul(const struct snd_interval *a,
|
|
const struct snd_interval *b, struct snd_interval *c);
|
|
void snd_interval_div(const struct snd_interval *a,
|
|
const struct snd_interval *b, struct snd_interval *c);
|
|
void snd_interval_muldivk(const struct snd_interval *a,
|
|
const struct snd_interval *b,
|
|
unsigned int k, struct snd_interval *c);
|
|
void snd_interval_mulkdiv(const struct snd_interval *a, unsigned int k,
|
|
const struct snd_interval *b, struct snd_interval *c);
|
|
|
|
int snd_pcm_hw_constraints_init(struct snd_pcm_substream *substream);
|
|
int snd_pcm_hw_constraints_complete(struct snd_pcm_substream *substream);
|
|
|
|
int snd_pcm_hw_constraint_mask(struct snd_pcm_runtime *runtime,
|
|
snd_pcm_hw_param_t var, u_int32_t mask);
|
|
|
|
int pcm_lib_apply_appl_ptr(struct snd_pcm_substream *substream,
|
|
snd_pcm_uframes_t appl_ptr);
|
|
int snd_pcm_update_state(struct snd_pcm_substream *substream,
|
|
struct snd_pcm_runtime *runtime);
|
|
int snd_pcm_update_hw_ptr(struct snd_pcm_substream *substream);
|
|
|
|
void snd_pcm_playback_silence(struct snd_pcm_substream *substream,
|
|
snd_pcm_uframes_t new_hw_ptr);
|
|
|
|
static inline snd_pcm_uframes_t
|
|
snd_pcm_avail(struct snd_pcm_substream *substream)
|
|
{
|
|
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
|
|
return snd_pcm_playback_avail(substream->runtime);
|
|
else
|
|
return snd_pcm_capture_avail(substream->runtime);
|
|
}
|
|
|
|
static inline snd_pcm_uframes_t
|
|
snd_pcm_hw_avail(struct snd_pcm_substream *substream)
|
|
{
|
|
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
|
|
return snd_pcm_playback_hw_avail(substream->runtime);
|
|
else
|
|
return snd_pcm_capture_hw_avail(substream->runtime);
|
|
}
|
|
|
|
#ifdef CONFIG_SND_PCM_TIMER
|
|
void snd_pcm_timer_resolution_change(struct snd_pcm_substream *substream);
|
|
void snd_pcm_timer_init(struct snd_pcm_substream *substream);
|
|
void snd_pcm_timer_done(struct snd_pcm_substream *substream);
|
|
#else
|
|
static inline void
|
|
snd_pcm_timer_resolution_change(struct snd_pcm_substream *substream) {}
|
|
static inline void snd_pcm_timer_init(struct snd_pcm_substream *substream) {}
|
|
static inline void snd_pcm_timer_done(struct snd_pcm_substream *substream) {}
|
|
#endif
|
|
|
|
void __snd_pcm_xrun(struct snd_pcm_substream *substream);
|
|
|
|
#endif /* __SOUND_CORE_PCM_LOCAL_H */
|