6  *  Digital Audio (PCM) abstract layer
21 #define snd_pcm_chip(pcm) ((pcm)->private_data)  argument
443 	struct snd_pcm *pcm;  member
445 	void *private_data;		/* copied from pcm->private_data */
490 	struct snd_pcm *pcm;  member
522 	void (*private_free) (struct snd_pcm *pcm);
523 	bool internal; /* pcm is for internal use only */
524 	bool nonatomic; /* whole PCM operations are in non-atomic context */
543 int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count);
547 	int (*n_register) (struct snd_pcm * pcm);
548 	int (*n_disconnect) (struct snd_pcm * pcm);
549 	int (*n_unregister) (struct snd_pcm * pcm);
569 int snd_pcm_suspend_all(struct snd_pcm *pcm);
571 static inline int snd_pcm_suspend_all(struct snd_pcm *pcm)  in snd_pcm_suspend_all()  argument
577 int snd_pcm_open_substream(struct snd_pcm *pcm, int stream, struct file *file,
580 int snd_pcm_attach_substream(struct snd_pcm *pcm, int stream, struct file *file,
598  *  PCM library
619  * snd_pcm_stream_lock_irqsave - Lock the PCM stream
620  * @substream: PCM substream
623  * This locks the PCM stream like snd_pcm_stream_lock() but with the local
668  * @runtime: PCM runtime instance
678  * @runtime: PCM runtime instance
688  * @runtime: PCM runtime instance
698  * @runtime: PCM runtime instance
708  * @runtime: PCM runtime instance
717  * snd_pcm_lib_buffer_bytes - Get the buffer size of the current PCM in bytes
718  * @substream: PCM substream
727  * snd_pcm_lib_period_bytes - Get the period size of the current PCM in bytes
728  * @substream: PCM substream
738  * @runtime: PCM runtime instance
754  * @runtime: PCM runtime instance
768  * @runtime: PCM runtime instance
777  * @runtime: PCM runtime instance
786  * @substream: the pcm substream instance
800  * @substream: the pcm substream instance
814  * @substream: the pcm substream instance
832  * @substream: the pcm substream instance
846  * @substream: the pcm substream instance
860  * @substream: the pcm substream instance
1024  * @runtime: PCM runtime instance
1045  * snd_pcm_format_cpu_endian - Check the PCM format is CPU-endian
1048  * Return: 1 if the given PCM format is CPU-endian, 0 if
1064 void snd_pcm_set_ops(struct snd_pcm * pcm, int direction,
1147  * snd_pcm_set_runtime_buffer - Set the PCM runtime buffer
1148  * @substream: PCM substream to set
1173  * @runtime: PCM runtime instance
1197 void snd_pcm_lib_preallocate_free_for_all(struct snd_pcm *pcm);
1201 void snd_pcm_lib_preallocate_pages_for_all(struct snd_pcm *pcm,
1209 int snd_pcm_set_managed_buffer_all(struct snd_pcm *pcm, int type,
1214  * snd_pcm_set_fixed_buffer - Preallocate and set up the fixed size PCM buffer
1215  * @substream: the pcm substream instance
1233  * snd_pcm_set_fixed_buffer_all - Preallocate and set up the fixed size PCM buffer
1234  * @pcm: the pcm instance
1244 snd_pcm_set_fixed_buffer_all(struct snd_pcm *pcm, int type,  in snd_pcm_set_fixed_buffer_all()  argument
1247 	return snd_pcm_set_managed_buffer_all(pcm, type, data, size, 0);  in snd_pcm_set_fixed_buffer_all()
1260  * Allocates the PCM substream buffer using vmalloc(), i.e., the memory is
1296  * @substream: PCM substream
1308  * @substream: PCM substream
1323  * PCM mmap callback should handle this counter properly
1335  * PCM mmap callback should handle this counter properly
1377  * @substream: the pcm substream instance
1390  * PCM channel-mapping control API
1400 	struct snd_pcm *pcm;	/* assigned PCM instance */  member
1410  * snd_pcm_chmap_substream - get the PCM substream assigned to the given chmap info
1418 	for (s = info->pcm->streams[info->stream].substream; s; s = s->next)  in snd_pcm_chmap_substream()
1434 int snd_pcm_add_chmap_ctls(struct snd_pcm *pcm, int stream,
1442  * @pcm_format: PCM format
1459 #define pcm_err(pcm, fmt, args...) \  argument
1460 	dev_err((pcm)->card->dev, fmt, ##args)
1461 #define pcm_warn(pcm, fmt, args...) \  argument
1462 	dev_warn((pcm)->card->dev, fmt, ##args)
1463 #define pcm_dbg(pcm, fmt, args...) \  argument
1464 	dev_dbg((pcm)->card->dev, fmt, ##args)