48 struct snd_pcm_substream;
54 	int (*open)(struct snd_pcm_substream *substream);
55 	int (*close)(struct snd_pcm_substream *substream);
56 	int (*ioctl)(struct snd_pcm_substream * substream,
58 	int (*hw_params)(struct snd_pcm_substream *substream,
60 	int (*hw_free)(struct snd_pcm_substream *substream);
61 	int (*prepare)(struct snd_pcm_substream *substream);
62 	int (*trigger)(struct snd_pcm_substream *substream, int cmd);
63 	int (*sync_stop)(struct snd_pcm_substream *substream);
64 	snd_pcm_uframes_t (*pointer)(struct snd_pcm_substream *substream);
65 	int (*get_time_info)(struct snd_pcm_substream *substream,
69 	int (*fill_silence)(struct snd_pcm_substream *substream, int channel,
71 	int (*copy_user)(struct snd_pcm_substream *substream, int channel,
74 	int (*copy_kernel)(struct snd_pcm_substream *substream, int channel,
76 	struct page *(*page)(struct snd_pcm_substream *substream,
78 	int (*mmap)(struct snd_pcm_substream *substream, struct vm_area_struct *vma);
79 	int (*ack)(struct snd_pcm_substream *substream);
220 	struct snd_pcm_substream *substream;
346 	struct snd_pcm_substream *trigger_master;
442 struct snd_pcm_substream {  struct
462 	struct snd_pcm_substream *next;  argument
471 	void (*pcm_release)(struct snd_pcm_substream *);  argument
494 	struct snd_pcm_substream *substream;  argument
559 int snd_pcm_info(struct snd_pcm_substream *substream, struct snd_pcm_info *info);
560 int snd_pcm_info_user(struct snd_pcm_substream *substream,
562 int snd_pcm_status64(struct snd_pcm_substream *substream,
564 int snd_pcm_start(struct snd_pcm_substream *substream);
565 int snd_pcm_stop(struct snd_pcm_substream *substream, snd_pcm_state_t status);
566 int snd_pcm_drain_done(struct snd_pcm_substream *substream);
567 int snd_pcm_stop_xrun(struct snd_pcm_substream *substream);
576 int snd_pcm_kernel_ioctl(struct snd_pcm_substream *substream, unsigned int cmd, void *arg);
578 			   struct snd_pcm_substream **rsubstream);
579 void snd_pcm_release_substream(struct snd_pcm_substream *substream);
581 			     struct snd_pcm_substream **rsubstream);
582 void snd_pcm_detach_substream(struct snd_pcm_substream *substream);
583 int snd_pcm_mmap_data(struct snd_pcm_substream *substream, struct file *file, struct vm_area_struct…
587 void snd_pcm_debug_name(struct snd_pcm_substream *substream,
591 snd_pcm_debug_name(struct snd_pcm_substream *substream, char *buf, size_t size)  in snd_pcm_debug_name()
607 static inline int snd_pcm_stream_linked(struct snd_pcm_substream *substream)  in snd_pcm_stream_linked()
612 void snd_pcm_stream_lock(struct snd_pcm_substream *substream);
613 void snd_pcm_stream_unlock(struct snd_pcm_substream *substream);
614 void snd_pcm_stream_lock_irq(struct snd_pcm_substream *substream);
615 void snd_pcm_stream_unlock_irq(struct snd_pcm_substream *substream);
616 unsigned long _snd_pcm_stream_lock_irqsave(struct snd_pcm_substream *substream);
632 void snd_pcm_stream_unlock_irqrestore(struct snd_pcm_substream *substream,
659 static inline int snd_pcm_running(struct snd_pcm_substream *substream)  in snd_pcm_running()
720 static inline size_t snd_pcm_lib_buffer_bytes(struct snd_pcm_substream *substream)  in snd_pcm_lib_buffer_bytes()
730 static inline size_t snd_pcm_lib_period_bytes(struct snd_pcm_substream *substream)  in snd_pcm_lib_period_bytes()
792 static inline int snd_pcm_playback_ready(struct snd_pcm_substream *substream)  in snd_pcm_playback_ready()
806 static inline int snd_pcm_capture_ready(struct snd_pcm_substream *substream)  in snd_pcm_capture_ready()
821 static inline int snd_pcm_playback_data(struct snd_pcm_substream *substream)  in snd_pcm_playback_data()
838 static inline int snd_pcm_playback_empty(struct snd_pcm_substream *substream)  in snd_pcm_playback_empty()
852 static inline int snd_pcm_capture_empty(struct snd_pcm_substream *substream)  in snd_pcm_capture_empty()
872 static inline void snd_pcm_trigger_done(struct snd_pcm_substream *substream,   in snd_pcm_trigger_done()
873 					struct snd_pcm_substream *master)  in snd_pcm_trigger_done()
980 int snd_pcm_hw_refine(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params);
1066 void snd_pcm_set_sync(struct snd_pcm_substream *substream);
1067 int snd_pcm_lib_ioctl(struct snd_pcm_substream *substream,
1069 void snd_pcm_period_elapsed(struct snd_pcm_substream *substream);
1070 snd_pcm_sframes_t __snd_pcm_lib_xfer(struct snd_pcm_substream *substream,
1075 snd_pcm_lib_write(struct snd_pcm_substream *substream,  in snd_pcm_lib_write()
1082 snd_pcm_lib_read(struct snd_pcm_substream *substream,  in snd_pcm_lib_read()
1089 snd_pcm_lib_writev(struct snd_pcm_substream *substream,  in snd_pcm_lib_writev()
1096 snd_pcm_lib_readv(struct snd_pcm_substream *substream,  in snd_pcm_lib_readv()
1103 snd_pcm_kernel_write(struct snd_pcm_substream *substream,  in snd_pcm_kernel_write()
1110 snd_pcm_kernel_read(struct snd_pcm_substream *substream,  in snd_pcm_kernel_read()
1117 snd_pcm_kernel_writev(struct snd_pcm_substream *substream,  in snd_pcm_kernel_writev()
1124 snd_pcm_kernel_readv(struct snd_pcm_substream *substream,  in snd_pcm_kernel_readv()
1153 static inline void snd_pcm_set_runtime_buffer(struct snd_pcm_substream *substream,  in snd_pcm_set_runtime_buffer()
1195 void snd_pcm_lib_preallocate_free(struct snd_pcm_substream *substream);
1197 void snd_pcm_lib_preallocate_pages(struct snd_pcm_substream *substream,
1203 int snd_pcm_lib_malloc_pages(struct snd_pcm_substream *substream, size_t size);
1204 int snd_pcm_lib_free_pages(struct snd_pcm_substream *substream);
1206 void snd_pcm_set_managed_buffer(struct snd_pcm_substream *substream, int type,
1212 int _snd_pcm_lib_alloc_vmalloc_buffer(struct snd_pcm_substream *substream,
1214 int snd_pcm_lib_free_vmalloc_buffer(struct snd_pcm_substream *substream);
1215 struct page *snd_pcm_lib_get_vmalloc_page(struct snd_pcm_substream *substream,
1230 			(struct snd_pcm_substream *substream, size_t size)  in snd_pcm_lib_alloc_vmalloc_buffer()
1248 			(struct snd_pcm_substream *substream, size_t size)  in snd_pcm_lib_alloc_vmalloc_32_buffer()
1270 snd_pcm_sgbuf_get_addr(struct snd_pcm_substream *substream, unsigned int ofs)  in snd_pcm_sgbuf_get_addr()
1281 snd_pcm_sgbuf_get_ptr(struct snd_pcm_substream *substream, unsigned int ofs)  in snd_pcm_sgbuf_get_ptr()
1294 snd_pcm_sgbuf_get_chunk_size(struct snd_pcm_substream *substream,  in snd_pcm_sgbuf_get_chunk_size()
1308 	struct snd_pcm_substream *substream = (struct snd_pcm_substream *)area->vm_private_data;  in snd_pcm_mmap_data_open()
1320 	struct snd_pcm_substream *substream = (struct snd_pcm_substream *)area->vm_private_data;  in snd_pcm_mmap_data_close()
1324 int snd_pcm_lib_default_mmap(struct snd_pcm_substream *substream,
1329 int snd_pcm_lib_mmap_iomem(struct snd_pcm_substream *substream, struct vm_area_struct *area);
1362 static inline const char *snd_pcm_stream_str(struct snd_pcm_substream *substream)  in snd_pcm_stream_str()
1395 static inline struct snd_pcm_substream *
1398 	struct snd_pcm_substream *s;  in snd_pcm_chmap_substream()