projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 2c4842d3 TS |
1 | /* |
| 2 | * pcm_local.h - a local header file for snd-pcm module. | |
| 3 | * | |
| 4 | * Copyright (c) Takashi Sakamoto <[email protected]> | |
| 5 | * | |
| 6 | * Licensed under the terms of the GNU General Public License, version 2. | |
| 7 | */ | |
| 8 | ||
| 9 | #ifndef __SOUND_CORE_PCM_LOCAL_H | |
| 10 | #define __SOUND_CORE_PCM_LOCAL_H | |
| 11 | ||
| 12 | extern const struct snd_pcm_hw_constraint_list snd_pcm_known_rates; | |
| 13 | ||
| 14 | void snd_interval_mul(const struct snd_interval *a, | |
| 15 | const struct snd_interval *b, struct snd_interval *c); | |
| 16 | void snd_interval_div(const struct snd_interval *a, | |
| 17 | const struct snd_interval *b, struct snd_interval *c); | |
| 18 | void snd_interval_muldivk(const struct snd_interval *a, | |
| 19 | const struct snd_interval *b, | |
| 20 | unsigned int k, struct snd_interval *c); | |
| 21 | void snd_interval_mulkdiv(const struct snd_interval *a, unsigned int k, | |
| 22 | const struct snd_interval *b, struct snd_interval *c); | |
| 23 | ||
| 24 | int snd_pcm_hw_constraints_init(struct snd_pcm_substream *substream); | |
| 25 | int snd_pcm_hw_constraints_complete(struct snd_pcm_substream *substream); | |
| 26 | ||
| 2c4842d3 TS |
27 | int snd_pcm_hw_constraint_mask(struct snd_pcm_runtime *runtime, |
| 28 | snd_pcm_hw_param_t var, u_int32_t mask); | |
| 29 | ||
| 66e01a5c TS |
30 | int pcm_lib_apply_appl_ptr(struct snd_pcm_substream *substream, |
| 31 | snd_pcm_uframes_t appl_ptr); | |
| 2c4842d3 TS |
32 | int snd_pcm_update_state(struct snd_pcm_substream *substream, |
| 33 | struct snd_pcm_runtime *runtime); | |
| 34 | int snd_pcm_update_hw_ptr(struct snd_pcm_substream *substream); | |
| 35 | ||
| 36 | void snd_pcm_playback_silence(struct snd_pcm_substream *substream, | |
| 37 | snd_pcm_uframes_t new_hw_ptr); | |
| 38 | ||
| 39 | #ifdef CONFIG_SND_PCM_TIMER | |
| 40 | void snd_pcm_timer_resolution_change(struct snd_pcm_substream *substream); | |
| 41 | void snd_pcm_timer_init(struct snd_pcm_substream *substream); | |
| 42 | void snd_pcm_timer_done(struct snd_pcm_substream *substream); | |
| 43 | #else | |
| 44 | static inline void | |
| 45 | snd_pcm_timer_resolution_change(struct snd_pcm_substream *substream) {} | |
| 46 | static inline void snd_pcm_timer_init(struct snd_pcm_substream *substream) {} | |
| 47 | static inline void snd_pcm_timer_done(struct snd_pcm_substream *substream) {} | |
| 48 | #endif | |
| 49 | ||
| 50 | #endif /* __SOUND_CORE_PCM_LOCAL_H */ |