1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * pcm_local.h - a local header file for snd-pcm module.
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright (c) Takashi Sakamoto <o-takashi@sakamocchi.jp>
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #ifndef __SOUND_CORE_PCM_LOCAL_H
9*4882a593Smuzhiyun #define __SOUND_CORE_PCM_LOCAL_H
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun extern const struct snd_pcm_hw_constraint_list snd_pcm_known_rates;
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun void snd_interval_mul(const struct snd_interval *a,
14*4882a593Smuzhiyun const struct snd_interval *b, struct snd_interval *c);
15*4882a593Smuzhiyun void snd_interval_div(const struct snd_interval *a,
16*4882a593Smuzhiyun const struct snd_interval *b, struct snd_interval *c);
17*4882a593Smuzhiyun void snd_interval_muldivk(const struct snd_interval *a,
18*4882a593Smuzhiyun const struct snd_interval *b,
19*4882a593Smuzhiyun unsigned int k, struct snd_interval *c);
20*4882a593Smuzhiyun void snd_interval_mulkdiv(const struct snd_interval *a, unsigned int k,
21*4882a593Smuzhiyun const struct snd_interval *b, struct snd_interval *c);
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun int snd_pcm_hw_constraint_mask(struct snd_pcm_runtime *runtime,
24*4882a593Smuzhiyun snd_pcm_hw_param_t var, u_int32_t mask);
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun int pcm_lib_apply_appl_ptr(struct snd_pcm_substream *substream,
27*4882a593Smuzhiyun snd_pcm_uframes_t appl_ptr);
28*4882a593Smuzhiyun int snd_pcm_update_state(struct snd_pcm_substream *substream,
29*4882a593Smuzhiyun struct snd_pcm_runtime *runtime);
30*4882a593Smuzhiyun int snd_pcm_update_hw_ptr(struct snd_pcm_substream *substream);
31*4882a593Smuzhiyun
32*4882a593Smuzhiyun void snd_pcm_playback_silence(struct snd_pcm_substream *substream,
33*4882a593Smuzhiyun snd_pcm_uframes_t new_hw_ptr);
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun static inline snd_pcm_uframes_t
snd_pcm_avail(struct snd_pcm_substream * substream)36*4882a593Smuzhiyun snd_pcm_avail(struct snd_pcm_substream *substream)
37*4882a593Smuzhiyun {
38*4882a593Smuzhiyun if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
39*4882a593Smuzhiyun return snd_pcm_playback_avail(substream->runtime);
40*4882a593Smuzhiyun else
41*4882a593Smuzhiyun return snd_pcm_capture_avail(substream->runtime);
42*4882a593Smuzhiyun }
43*4882a593Smuzhiyun
44*4882a593Smuzhiyun static inline snd_pcm_uframes_t
snd_pcm_hw_avail(struct snd_pcm_substream * substream)45*4882a593Smuzhiyun snd_pcm_hw_avail(struct snd_pcm_substream *substream)
46*4882a593Smuzhiyun {
47*4882a593Smuzhiyun if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
48*4882a593Smuzhiyun return snd_pcm_playback_hw_avail(substream->runtime);
49*4882a593Smuzhiyun else
50*4882a593Smuzhiyun return snd_pcm_capture_hw_avail(substream->runtime);
51*4882a593Smuzhiyun }
52*4882a593Smuzhiyun
53*4882a593Smuzhiyun #ifdef CONFIG_SND_PCM_TIMER
54*4882a593Smuzhiyun void snd_pcm_timer_resolution_change(struct snd_pcm_substream *substream);
55*4882a593Smuzhiyun void snd_pcm_timer_init(struct snd_pcm_substream *substream);
56*4882a593Smuzhiyun void snd_pcm_timer_done(struct snd_pcm_substream *substream);
57*4882a593Smuzhiyun #else
58*4882a593Smuzhiyun static inline void
snd_pcm_timer_resolution_change(struct snd_pcm_substream * substream)59*4882a593Smuzhiyun snd_pcm_timer_resolution_change(struct snd_pcm_substream *substream) {}
snd_pcm_timer_init(struct snd_pcm_substream * substream)60*4882a593Smuzhiyun static inline void snd_pcm_timer_init(struct snd_pcm_substream *substream) {}
snd_pcm_timer_done(struct snd_pcm_substream * substream)61*4882a593Smuzhiyun static inline void snd_pcm_timer_done(struct snd_pcm_substream *substream) {}
62*4882a593Smuzhiyun #endif
63*4882a593Smuzhiyun
64*4882a593Smuzhiyun void __snd_pcm_xrun(struct snd_pcm_substream *substream);
65*4882a593Smuzhiyun void snd_pcm_group_init(struct snd_pcm_group *group);
66*4882a593Smuzhiyun void snd_pcm_sync_stop(struct snd_pcm_substream *substream, bool sync_irq);
67*4882a593Smuzhiyun
68*4882a593Smuzhiyun #ifdef CONFIG_SND_DMA_SGBUF
69*4882a593Smuzhiyun struct page *snd_pcm_sgbuf_ops_page(struct snd_pcm_substream *substream,
70*4882a593Smuzhiyun unsigned long offset);
71*4882a593Smuzhiyun #endif
72*4882a593Smuzhiyun
73*4882a593Smuzhiyun #define PCM_RUNTIME_CHECK(sub) snd_BUG_ON(!(sub) || !(sub)->runtime)
74*4882a593Smuzhiyun
75*4882a593Smuzhiyun #endif /* __SOUND_CORE_PCM_LOCAL_H */
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