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31 #ifndef __ALSA_PCM_IOPLUG_H
32 #define __ALSA_PCM_IOPLUG_H
66 #define SND_PCM_IOPLUG_FLAG_LISTED (1<<0)
67 #define SND_PCM_IOPLUG_FLAG_MONOTONIC (1<<1)
69 #define SND_PCM_IOPLUG_FLAG_BOUNDARY_WA (1<<2)
74 #define SND_PCM_IOPLUG_VERSION_MAJOR 1
75 #define SND_PCM_IOPLUG_VERSION_MINOR 0
76 #define SND_PCM_IOPLUG_VERSION_TINY 2
80 #define SND_PCM_IOPLUG_VERSION ((SND_PCM_IOPLUG_VERSION_MAJOR<<16) |\
81 (SND_PCM_IOPLUG_VERSION_MINOR<<8) |\
82 (SND_PCM_IOPLUG_VERSION_TINY))
147 const snd_pcm_channel_area_t *areas,
218 snd_pcm_stream_t stream,
int mode);
@ SND_PCM_IOPLUG_HW_PERIODS
Definition: pcm_ioplug.h:49
unsigned int mmap_rw
Definition: pcm_ioplug.h:98
long snd_pcm_sframes_t
Definition: pcm.h:376
@ SND_PCM_IOPLUG_HW_BUFFER_BYTES
Definition: pcm_ioplug.h:48
snd_pcm_uframes_t snd_pcm_ioplug_avail(const snd_pcm_ioplug_t *const ioplug, const snd_pcm_uframes_t hw_ptr, const snd_pcm_uframes_t appl_ptr)
Get the available frames. This function can be used to calculate the the available frames before call...
Definition: pcm_ioplug.c:1240
int(* poll_descriptors)(snd_pcm_ioplug_t *io, struct pollfd *pfd, unsigned int space)
Definition: pcm_ioplug.h:189
@ SND_PCM_IOPLUG_HW_PARAMS
Definition: pcm_ioplug.h:50
int snd_pcm_ioplug_set_param_minmax(snd_pcm_ioplug_t *io, int type, unsigned int min, unsigned int max)
Set parameter as the min/max values.
Definition: pcm_ioplug.c:1164
struct _snd_pcm snd_pcm_t
Definition: pcm.h:394
Definition: pcm_ioplug.h:85
const snd_pcm_ioplug_callback_t * callback
Definition: pcm_ioplug.h:102
unsigned int poll_events
Definition: pcm_ioplug.h:97
int(* hw_free)(snd_pcm_ioplug_t *io)
Definition: pcm_ioplug.h:161
int(* poll_descriptors_count)(snd_pcm_ioplug_t *io)
Definition: pcm_ioplug.h:185
int nonblock
Definition: pcm_ioplug.h:116
struct _snd_output snd_output_t
Internal structure for an output object.
Definition: output.h:54
int poll_fd
Definition: pcm_ioplug.h:96
int snd_pcm_ioplug_create(snd_pcm_ioplug_t *io, const char *name, snd_pcm_stream_t stream, int mode)
Create an ioplug instance.
Definition: pcm_ioplug.c:1059
struct _snd_pcm_hw_params snd_pcm_hw_params_t
Definition: pcm.h:64
Definition: pcm_ioplug.h:127
int(* set_chmap)(snd_pcm_ioplug_t *io, const snd_pcm_chmap_t *map)
Definition: pcm_ioplug.h:213
void * private_data
Definition: pcm_ioplug.h:106
unsigned int version
Definition: pcm_ioplug.h:90
int(* sw_params)(snd_pcm_ioplug_t *io, snd_pcm_sw_params_t *params)
Definition: pcm_ioplug.h:165
snd_pcm_uframes_t buffer_size
Definition: pcm_ioplug.h:123
unsigned long snd_pcm_uframes_t
Definition: pcm.h:374
@ SND_PCM_IOPLUG_HW_CHANNELS
Definition: pcm_ioplug.h:45
snd_pcm_ioplug_callback snd_pcm_ioplug_callback_t
Definition: pcm_ioplug.h:60
int snd_pcm_ioplug_set_state(snd_pcm_ioplug_t *ioplug, snd_pcm_state_t state)
Change the ioplug PCM status.
Definition: pcm_ioplug.c:1226
int snd_pcm_ioplug_delete(snd_pcm_ioplug_t *io)
Delete the ioplug instance.
Definition: pcm_ioplug.c:1111
snd_pcm_uframes_t period_size
Definition: pcm_ioplug.h:122
int snd_pcm_ioplug_set_param_list(snd_pcm_ioplug_t *io, int type, unsigned int num_list, const unsigned int *list)
Set parameter as the list.
Definition: pcm_ioplug.c:1140
snd_pcm_state_t state
Definition: pcm_ioplug.h:113
unsigned int rate
Definition: pcm_ioplug.h:121
const char * name
Definition: pcm_ioplug.h:94
int(* poll_revents)(snd_pcm_ioplug_t *io, struct pollfd *pfd, unsigned int nfds, unsigned short *revents)
Definition: pcm_ioplug.h:193
snd_pcm_sframes_t(* pointer)(snd_pcm_ioplug_t *io)
Definition: pcm_ioplug.h:142
snd_pcm_format_t format
Definition: pcm_ioplug.h:119
@ SND_PCM_IOPLUG_HW_RATE
Definition: pcm_ioplug.h:46
int(* delay)(snd_pcm_ioplug_t *io, snd_pcm_sframes_t *delayp)
Definition: pcm_ioplug.h:201
int(* resume)(snd_pcm_ioplug_t *io)
Definition: pcm_ioplug.h:181
snd_pcm_ioplug snd_pcm_ioplug_t
Definition: pcm_ioplug.h:59
struct _snd_pcm_sw_params snd_pcm_sw_params_t
Definition: pcm.h:67
@ SND_PCM_IOPLUG_HW_ACCESS
Definition: pcm_ioplug.h:43
int(* stop)(snd_pcm_ioplug_t *io)
Definition: pcm_ioplug.h:135
@ SND_PCM_IOPLUG_HW_FORMAT
Definition: pcm_ioplug.h:44
int(* start)(snd_pcm_ioplug_t *io)
Definition: pcm_ioplug.h:131
snd_pcm_access_t access
Definition: pcm_ioplug.h:118
unsigned int flags
Definition: pcm_ioplug.h:95
void snd_pcm_ioplug_params_reset(snd_pcm_ioplug_t *io)
Reset ioplug parameters.
Definition: pcm_ioplug.c:1123
snd_pcm_sframes_t(* transfer)(snd_pcm_ioplug_t *io, const snd_pcm_channel_area_t *areas, snd_pcm_uframes_t offset, snd_pcm_uframes_t size)
Definition: pcm_ioplug.h:146
snd_pcm_stream_t stream
Definition: pcm_ioplug.h:112
void(* dump)(snd_pcm_ioplug_t *io, snd_output_t *out)
Definition: pcm_ioplug.h:197
int(* pause)(snd_pcm_ioplug_t *io, int enable)
Definition: pcm_ioplug.h:177
int(* prepare)(snd_pcm_ioplug_t *io)
Definition: pcm_ioplug.h:169
int snd_pcm_ioplug_reinit_status(snd_pcm_ioplug_t *ioplug)
Reinitialize the poll and mmap status.
Definition: pcm_ioplug.c:1189
unsigned int channels
Definition: pcm_ioplug.h:120
int(* drain)(snd_pcm_ioplug_t *io)
Definition: pcm_ioplug.h:173
snd_pcm_uframes_t snd_pcm_ioplug_hw_avail(const snd_pcm_ioplug_t *const ioplug, const snd_pcm_uframes_t hw_ptr, const snd_pcm_uframes_t appl_ptr)
Get the available frames. This function can be used to calculate the the available frames before call...
Definition: pcm_ioplug.c:1255
int(* close)(snd_pcm_ioplug_t *io)
Definition: pcm_ioplug.h:153
volatile snd_pcm_uframes_t hw_ptr
Definition: pcm_ioplug.h:115
@ SND_PCM_IOPLUG_HW_PERIOD_BYTES
Definition: pcm_ioplug.h:47
volatile snd_pcm_uframes_t appl_ptr
Definition: pcm_ioplug.h:114
int(* hw_params)(snd_pcm_ioplug_t *io, snd_pcm_hw_params_t *params)
Definition: pcm_ioplug.h:157
const snd_pcm_channel_area_t * snd_pcm_ioplug_mmap_areas(snd_pcm_ioplug_t *ioplug)
Get mmap area of ioplug.
Definition: pcm_ioplug.c:1209
snd_pcm_t * pcm
Definition: pcm_ioplug.h:110