diff options
Diffstat (limited to 'sound/core/pcm_local.h')
| -rw-r--r-- | sound/core/pcm_local.h | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/sound/core/pcm_local.h b/sound/core/pcm_local.h index c515612969a4..ecb21697ae3a 100644 --- a/sound/core/pcm_local.h +++ b/sound/core/pcm_local.h @@ -1,9 +1,8 @@ +/* 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> - * - * Licensed under the terms of the GNU General Public License, version 2. */ #ifndef __SOUND_CORE_PCM_LOCAL_H @@ -21,9 +20,6 @@ void snd_interval_muldivk(const struct snd_interval *a, 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); @@ -66,5 +62,22 @@ 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 */ |