6  *  Digital Audio (PCM) abstract layer
21 #define snd_pcm_chip(pcm) ((pcm)->private_data)  argument
450 	struct snd_pcm *pcm;  member
452 	void *private_data;		/* copied from pcm->private_data */
497 	struct snd_pcm *pcm;  member
529 	void (*private_free) (struct snd_pcm *pcm);
530 	bool internal; /* pcm is for internal use only */
531 	bool nonatomic; /* whole PCM operations are in non-atomic context */
550 int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count);
554 	int (*n_register) (struct snd_pcm * pcm);
555 	int (*n_disconnect) (struct snd_pcm * pcm);
556 	int (*n_unregister) (struct snd_pcm * pcm);
576 int snd_pcm_suspend_all(struct snd_pcm *pcm);
578 static inline int snd_pcm_suspend_all(struct snd_pcm *pcm)  in snd_pcm_suspend_all()  argument
584 int snd_pcm_open_substream(struct snd_pcm *pcm, int stream, struct file *file,
587 int snd_pcm_attach_substream(struct snd_pcm *pcm, int stream, struct file *file,
605  *  PCM library
627  * snd_pcm_stream_lock_irqsave - Lock the PCM stream
628  * @substream: PCM substream
631  * This locks the PCM stream like snd_pcm_stream_lock() but with the local
644  * snd_pcm_stream_lock_irqsave_nested - Single-nested PCM stream locking
645  * @substream: PCM substream
648  * This locks the PCM stream like snd_pcm_stream_lock_irqsave() but with
689  * __snd_pcm_set_state - Change the current PCM state
690  * @runtime: PCM runtime to set
704  * @runtime: PCM runtime instance
716  * @runtime: PCM runtime instance
728  * @runtime: PCM runtime instance
740  * @runtime: PCM runtime instance
752  * @runtime: PCM runtime instance
763  * snd_pcm_lib_buffer_bytes - Get the buffer size of the current PCM in bytes
764  * @substream: PCM substream
775  * snd_pcm_lib_period_bytes - Get the period size of the current PCM in bytes
776  * @substream: PCM substream
788  * @runtime: PCM runtime instance
806  * @runtime: PCM runtime instance
822  * @runtime: PCM runtime instance
833  * @runtime: PCM runtime instance
844  * @substream: the pcm substream instance
858  * @substream: the pcm substream instance
872  * @substream: the pcm substream instance
890  * @substream: the pcm substream instance
904  * @substream: the pcm substream instance
918  * @substream: the pcm substream instance
1094  * @runtime: PCM runtime instance
1115  * snd_pcm_format_cpu_endian - Check the PCM format is CPU-endian
1118  * Return: 1 if the given PCM format is CPU-endian, 0 if
1134 void snd_pcm_set_ops(struct snd_pcm * pcm, int direction,
1217  * snd_pcm_set_runtime_buffer - Set the PCM runtime buffer
1218  * @substream: PCM substream to set
1243  * @runtime: PCM runtime instance
1267 void snd_pcm_lib_preallocate_free_for_all(struct snd_pcm *pcm);
1271 void snd_pcm_lib_preallocate_pages_for_all(struct snd_pcm *pcm,
1279 int snd_pcm_set_managed_buffer_all(struct snd_pcm *pcm, int type,
1284  * snd_pcm_set_fixed_buffer - Preallocate and set up the fixed size PCM buffer
1285  * @substream: the pcm substream instance
1305  * snd_pcm_set_fixed_buffer_all - Preallocate and set up the fixed size PCM buffer
1306  * @pcm: the pcm instance
1318 snd_pcm_set_fixed_buffer_all(struct snd_pcm *pcm, int type,  in snd_pcm_set_fixed_buffer_all()  argument
1321 	return snd_pcm_set_managed_buffer_all(pcm, type, data, size, 0);  in snd_pcm_set_fixed_buffer_all()
1334  * Allocates the PCM substream buffer using vmalloc(), i.e., the memory is
1370  * @substream: PCM substream
1384  * @substream: PCM substream
1401  * PCM mmap callback should handle this counter properly
1413  * PCM mmap callback should handle this counter properly
1469  * @substream: the pcm substream instance
1479  * PCM channel-mapping control API
1489 	struct snd_pcm *pcm;	/* assigned PCM instance */  member
1499  * snd_pcm_chmap_substream - get the PCM substream assigned to the given chmap info
1503  * Return: the matched PCM substream, or NULL if not found
1509 	for (s = info->pcm->streams[info->stream].substream; s; s = s->next)  in snd_pcm_chmap_substream()
1525 int snd_pcm_add_chmap_ctls(struct snd_pcm *pcm, int stream,
1533  * @pcm_format: PCM format
1535  * Return: 64bit mask corresponding to the given PCM format
1552 #define pcm_err(pcm, fmt, args...) \  argument
1553 	dev_err((pcm)->card->dev, fmt, ##args)
1554 #define pcm_warn(pcm, fmt, args...) \  argument
1555 	dev_warn((pcm)->card->dev, fmt, ##args)
1556 #define pcm_dbg(pcm, fmt, args...) \  argument
1557 	dev_dbg((pcm)->card->dev, fmt, ##args)