mirror of
https://github.com/torvalds/linux.git
synced 2024-11-25 05:32:00 +00:00
d7f5dd9790
This reverts commit 9f656705c5.
There was a regression (in the top-up mode). Unfortunately, the patch
provided from the author of this commit is not easy to review.
Keep the updated and new comments in headers.
Also add a new comment that documents the missed API constraint which
led to the regression.
Reported-by: Jeff Chua <jeff.chua.linux@gmail.com>
Link: https://lore.kernel.org/r/CAAJw_ZsbTVd3Es373x_wTNDF7RknGhCD0r+NKUSwAO7HpLAkYA@mail.gmail.com
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230505155244.2312199-1-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
84 lines
3.0 KiB
C
84 lines
3.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* pcm_local.h - a local header file for snd-pcm module.
|
|
*
|
|
* Copyright (c) Takashi Sakamoto <o-takashi@sakamocchi.jp>
|
|
*/
|
|
|
|
#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_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);
|
|
void snd_pcm_group_init(struct snd_pcm_group *group);
|
|
void snd_pcm_sync_stop(struct snd_pcm_substream *substream, bool sync_irq);
|
|
|
|
#define PCM_RUNTIME_CHECK(sub) snd_BUG_ON(!(sub) || !(sub)->runtime)
|
|
|
|
/* loop over all PCM substreams */
|
|
#define for_each_pcm_substream(pcm, str, subs) \
|
|
for ((str) = 0; (str) < 2; (str)++) \
|
|
for ((subs) = (pcm)->streams[str].substream; (subs); \
|
|
(subs) = (subs)->next)
|
|
|
|
static inline void snd_pcm_dma_buffer_sync(struct snd_pcm_substream *substream,
|
|
enum snd_dma_sync_mode mode)
|
|
{
|
|
if (substream->runtime->info & SNDRV_PCM_INFO_EXPLICIT_SYNC)
|
|
snd_dma_buffer_sync(snd_pcm_get_dma_buf(substream), mode);
|
|
}
|
|
|
|
#endif /* __SOUND_CORE_PCM_LOCAL_H */
|