61 struct snd_pcm_substream;
67 	int (*open)(struct snd_pcm_substream *substream);
68 	int (*close)(struct snd_pcm_substream *substream);
69 	int (*ioctl)(struct snd_pcm_substream * substream,
71 	int (*hw_params)(struct snd_pcm_substream *substream,
73 	int (*hw_free)(struct snd_pcm_substream *substream);
74 	int (*prepare)(struct snd_pcm_substream *substream);
75 	int (*trigger)(struct snd_pcm_substream *substream, int cmd);
76 	snd_pcm_uframes_t (*pointer)(struct snd_pcm_substream *substream);
77 	int (*get_time_info)(struct snd_pcm_substream *substream,
81 	int (*copy)(struct snd_pcm_substream *substream, int channel,
84 	int (*silence)(struct snd_pcm_substream *substream, int channel, 
86 	struct page *(*page)(struct snd_pcm_substream *substream,
88 	int (*mmap)(struct snd_pcm_substream *substream, struct vm_area_struct *vma);
89 	int (*ack)(struct snd_pcm_substream *substream);
217 	struct snd_pcm_substream *substream;
342 	struct snd_pcm_substream *trigger_master;
436 struct snd_pcm_substream {  struct
455 	struct snd_pcm_substream *next;  argument
465 	void (*pcm_release)(struct snd_pcm_substream *);  argument
496 	struct snd_pcm_substream *substream;  argument
561 int snd_pcm_info(struct snd_pcm_substream *substream, struct snd_pcm_info *info);
562 int snd_pcm_info_user(struct snd_pcm_substream *substream,
564 int snd_pcm_status(struct snd_pcm_substream *substream,
566 int snd_pcm_start(struct snd_pcm_substream *substream);
567 int snd_pcm_stop(struct snd_pcm_substream *substream, snd_pcm_state_t status);
568 int snd_pcm_drain_done(struct snd_pcm_substream *substream);
569 int snd_pcm_stop_xrun(struct snd_pcm_substream *substream);
571 int snd_pcm_suspend(struct snd_pcm_substream *substream);
574 int snd_pcm_kernel_ioctl(struct snd_pcm_substream *substream, unsigned int cmd, void *arg);
576 			   struct snd_pcm_substream **rsubstream);
577 void snd_pcm_release_substream(struct snd_pcm_substream *substream);
579 			     struct snd_pcm_substream **rsubstream);
580 void snd_pcm_detach_substream(struct snd_pcm_substream *substream);
581 int snd_pcm_mmap_data(struct snd_pcm_substream *substream, struct file *file, struct vm_area_struct…
585 void snd_pcm_debug_name(struct snd_pcm_substream *substream,
589 snd_pcm_debug_name(struct snd_pcm_substream *substream, char *buf, size_t size)  in snd_pcm_debug_name()
605 static inline int snd_pcm_stream_linked(struct snd_pcm_substream *substream)  in snd_pcm_stream_linked()
610 void snd_pcm_stream_lock(struct snd_pcm_substream *substream);
611 void snd_pcm_stream_unlock(struct snd_pcm_substream *substream);
612 void snd_pcm_stream_lock_irq(struct snd_pcm_substream *substream);
613 void snd_pcm_stream_unlock_irq(struct snd_pcm_substream *substream);
614 unsigned long _snd_pcm_stream_lock_irqsave(struct snd_pcm_substream *substream);
630 void snd_pcm_stream_unlock_irqrestore(struct snd_pcm_substream *substream,
652 static inline int snd_pcm_running(struct snd_pcm_substream *substream)  in snd_pcm_running()
713 static inline size_t snd_pcm_lib_buffer_bytes(struct snd_pcm_substream *substream)  in snd_pcm_lib_buffer_bytes()
723 static inline size_t snd_pcm_lib_period_bytes(struct snd_pcm_substream *substream)  in snd_pcm_lib_period_bytes()
785 static inline int snd_pcm_playback_ready(struct snd_pcm_substream *substream)  in snd_pcm_playback_ready()
799 static inline int snd_pcm_capture_ready(struct snd_pcm_substream *substream)  in snd_pcm_capture_ready()
814 static inline int snd_pcm_playback_data(struct snd_pcm_substream *substream)  in snd_pcm_playback_data()
831 static inline int snd_pcm_playback_empty(struct snd_pcm_substream *substream)  in snd_pcm_playback_empty()
845 static inline int snd_pcm_capture_empty(struct snd_pcm_substream *substream)  in snd_pcm_capture_empty()
865 static inline void snd_pcm_trigger_done(struct snd_pcm_substream *substream,   in snd_pcm_trigger_done()
866 					struct snd_pcm_substream *master)  in snd_pcm_trigger_done()
978 int snd_pcm_hw_params_choose(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params);
980 int snd_pcm_hw_refine(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params);
982 int snd_pcm_hw_constraints_init(struct snd_pcm_substream *substream);
983 int snd_pcm_hw_constraints_complete(struct snd_pcm_substream *substream);
1071 void snd_pcm_set_sync(struct snd_pcm_substream *substream);
1072 int snd_pcm_lib_ioctl(struct snd_pcm_substream *substream,
1074 int snd_pcm_update_state(struct snd_pcm_substream *substream,
1076 int snd_pcm_update_hw_ptr(struct snd_pcm_substream *substream);
1077 void snd_pcm_playback_silence(struct snd_pcm_substream *substream, snd_pcm_uframes_t new_hw_ptr);
1078 void snd_pcm_period_elapsed(struct snd_pcm_substream *substream);
1079 snd_pcm_sframes_t snd_pcm_lib_write(struct snd_pcm_substream *substream,
1082 snd_pcm_sframes_t snd_pcm_lib_read(struct snd_pcm_substream *substream,
1084 snd_pcm_sframes_t snd_pcm_lib_writev(struct snd_pcm_substream *substream,
1086 snd_pcm_sframes_t snd_pcm_lib_readv(struct snd_pcm_substream *substream,
1105 static inline void snd_pcm_set_runtime_buffer(struct snd_pcm_substream *substream,  in snd_pcm_set_runtime_buffer()
1127 void snd_pcm_timer_resolution_change(struct snd_pcm_substream *substream);
1128 void snd_pcm_timer_init(struct snd_pcm_substream *substream);
1129 void snd_pcm_timer_done(struct snd_pcm_substream *substream);
1132 snd_pcm_timer_resolution_change(struct snd_pcm_substream *substream) {}  in snd_pcm_timer_resolution_change()
1133 static inline void snd_pcm_timer_init(struct snd_pcm_substream *substream) {}  in snd_pcm_timer_init()
1134 static inline void snd_pcm_timer_done(struct snd_pcm_substream *substream) {}  in snd_pcm_timer_done()
1161 int snd_pcm_lib_preallocate_free(struct snd_pcm_substream *substream);
1163 int snd_pcm_lib_preallocate_pages(struct snd_pcm_substream *substream,
1169 int snd_pcm_lib_malloc_pages(struct snd_pcm_substream *substream, size_t size);
1170 int snd_pcm_lib_free_pages(struct snd_pcm_substream *substream);
1172 int _snd_pcm_lib_alloc_vmalloc_buffer(struct snd_pcm_substream *substream,
1174 int snd_pcm_lib_free_vmalloc_buffer(struct snd_pcm_substream *substream);
1175 struct page *snd_pcm_lib_get_vmalloc_page(struct snd_pcm_substream *substream,
1190 			(struct snd_pcm_substream *substream, size_t size)  in snd_pcm_lib_alloc_vmalloc_buffer()
1208 			(struct snd_pcm_substream *substream, size_t size)  in snd_pcm_lib_alloc_vmalloc_32_buffer()
1223 struct page *snd_pcm_sgbuf_ops_page(struct snd_pcm_substream *substream,
1238 snd_pcm_sgbuf_get_addr(struct snd_pcm_substream *substream, unsigned int ofs)  in snd_pcm_sgbuf_get_addr()
1249 snd_pcm_sgbuf_get_ptr(struct snd_pcm_substream *substream, unsigned int ofs)  in snd_pcm_sgbuf_get_ptr()
1262 snd_pcm_sgbuf_get_chunk_size(struct snd_pcm_substream *substream,  in snd_pcm_sgbuf_get_chunk_size()
1276 	struct snd_pcm_substream *substream = (struct snd_pcm_substream *)area->vm_private_data;  in snd_pcm_mmap_data_open()
1288 	struct snd_pcm_substream *substream = (struct snd_pcm_substream *)area->vm_private_data;  in snd_pcm_mmap_data_close()
1292 int snd_pcm_lib_default_mmap(struct snd_pcm_substream *substream,
1297 int snd_pcm_lib_mmap_iomem(struct snd_pcm_substream *substream, struct vm_area_struct *area);
1334 static inline const char *snd_pcm_stream_str(struct snd_pcm_substream *substream)  in snd_pcm_stream_str()
1367 static inline struct snd_pcm_substream *
1370 	struct snd_pcm_substream *s;  in snd_pcm_chmap_substream()