26 #ifndef __ALSA_CONTROL_EXTERNAL_H
27 #define __ALSA_CONTROL_EXTERNAL_H
43 #define SND_CTL_PLUGIN_ENTRY(name) _snd_ctl_##name##_open
48 #define SND_CTL_PLUGIN_SYMBOL(name) SND_DLSYM_BUILD_VERSION(SND_CTL_PLUGIN_ENTRY(name), SND_CONTROL_DLSYM_VERSION);
53 #define SND_CTL_PLUGIN_DEFINE_FUNC(plugin) \
54 int SND_CTL_PLUGIN_ENTRY(plugin) (snd_ctl_t **handlep, const char *name,\
55 snd_config_t *root, snd_config_t *conf, int mode)
69 typedef int (
snd_ctl_ext_tlv_rw_t)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key,
int op_flag,
unsigned int numid,
70 unsigned int *tlv,
unsigned int tlv_size);
75 #define SND_CTL_EXT_VERSION_MAJOR 1
76 #define SND_CTL_EXT_VERSION_MINOR 0
77 #define SND_CTL_EXT_VERSION_TINY 1
81 #define SND_CTL_EXT_VERSION ((SND_CTL_EXT_VERSION_MAJOR<<16) |\
82 (SND_CTL_EXT_VERSION_MINOR<<8) |\
83 (SND_CTL_EXT_VERSION_TINY))
142 const unsigned int *p;
167 void (*
free_key)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key);
172 int *type,
unsigned int *acc,
unsigned int *count);
177 long *imin,
long *imax,
long *istep);
182 int64_t *imin, int64_t *imax, int64_t *istep);
191 char *name,
size_t name_max_len);
195 int (*
read_integer)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key,
long *value);
199 int (*
read_integer64)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, int64_t *value);
203 int (*
read_enumerated)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key,
unsigned int *items);
207 int (*
read_bytes)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key,
unsigned char *data,
216 int (*
write_integer)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key,
long *value);
228 int (*
write_bytes)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key,
unsigned char *data,
253 int (*
poll_revents)(snd_ctl_ext_t *ext,
struct pollfd *pfds,
unsigned int nfds,
unsigned short *revents);
259 typedef enum snd_ctl_ext_access {
260 SND_CTL_EXT_ACCESS_READ = (1<<0),
261 SND_CTL_EXT_ACCESS_WRITE = (1<<1),
262 SND_CTL_EXT_ACCESS_READWRITE = (3<<0),
263 SND_CTL_EXT_ACCESS_VOLATILE = (1<<2),
264 SND_CTL_EXT_ACCESS_TLV_READ = (1<<4),
265 SND_CTL_EXT_ACCESS_TLV_WRITE = (1<<5),
266 SND_CTL_EXT_ACCESS_TLV_READWRITE = (3<<4),
267 SND_CTL_EXT_ACCESS_TLV_COMMAND = (1<<6),
268 SND_CTL_EXT_ACCESS_INACTIVE = (1<<8),
269 SND_CTL_EXT_ACCESS_TLV_CALLBACK = (1<<28),
275 #define SND_CTL_EXT_KEY_NOT_FOUND (snd_ctl_ext_key_t)(-1)
int poll_fd
Definition: control_external.h:119
int(* write_integer64)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, int64_t *value)
Definition: control_external.h:220
snd_ctl_t * handle
Definition: control_external.h:132
int subscribed
Definition: control_external.h:135
void(* free_key)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key)
Definition: control_external.h:167
int(* get_enumerated_name)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, unsigned int item, char *name, size_t name_max_len)
Definition: control_external.h:190
int(* read_integer64)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, int64_t *value)
Definition: control_external.h:199
int snd_ctl_ext_delete(snd_ctl_ext_t *ext)
Delete the external control plugin.
Definition: control_ext.c:739
int(* get_attribute)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, int *type, unsigned int *acc, unsigned int *count)
Definition: control_external.h:171
int(* write_enumerated)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, unsigned int *items)
Definition: control_external.h:224
int(* read_enumerated)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, unsigned int *items)
Definition: control_external.h:203
int(* poll_revents)(snd_ctl_ext_t *ext, struct pollfd *pfds, unsigned int nfds, unsigned short *revents)
Definition: control_external.h:253
int(* read_bytes)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, unsigned char *data, size_t max_bytes)
Definition: control_external.h:207
int(* poll_descriptors_count)(snd_ctl_ext_t *ext)
Definition: control_external.h:245
snd_ctl_ext_key_t(* find_elem)(snd_ctl_ext_t *ext, const snd_ctl_elem_id_t *id)
Definition: control_external.h:163
const snd_ctl_ext_callback_t * callback
Definition: control_external.h:124
char mixername[80]
Definition: control_external.h:115
struct _snd_ctl snd_ctl_t
Definition: control.h:214
snd_ctl_ext snd_ctl_ext_t
Definition: control_external.h:65
int(* poll_descriptors)(snd_ctl_ext_t *ext, struct pollfd *pfds, unsigned int space)
Definition: control_external.h:249
int(* get_integer_info)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, long *imin, long *imax, long *istep)
Definition: control_external.h:176
int( snd_ctl_ext_tlv_rw_t)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, int op_flag, unsigned int numid, unsigned int *tlv, unsigned int tlv_size)
Definition: control_external.h:69
struct _snd_ctl_elem_id snd_ctl_elem_id_t
Definition: control.h:57
int(* write_bytes)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, unsigned char *data, size_t max_bytes)
Definition: control_external.h:228
Definition: control_external.h:147
unsigned long snd_ctl_ext_key_t
Definition: control_external.h:62
void(* subscribe_events)(snd_ctl_ext_t *ext, int subscribe)
Definition: control_external.h:237
int(* read_event)(snd_ctl_ext_t *ext, snd_ctl_elem_id_t *id, unsigned int *event_mask)
Definition: control_external.h:241
int(* elem_list)(snd_ctl_ext_t *ext, unsigned int offset, snd_ctl_elem_id_t *id)
Definition: control_external.h:159
int(* read_integer)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, long *value)
Definition: control_external.h:195
unsigned int version
Definition: control_external.h:91
Definition: control_external.h:86
int nonblock
Definition: control_external.h:134
int(* get_enumerated_info)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, unsigned int *items)
Definition: control_external.h:186
snd_ctl_ext_access_t
Definition: control_external.h:259
union snd_ctl_ext::@7 tlv
snd_ctl_ext_callback snd_ctl_ext_callback_t
Definition: control_external.h:66
int(* get_integer64_info)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, int64_t *imin, int64_t *imax, int64_t *istep)
Definition: control_external.h:181
int(* elem_count)(snd_ctl_ext_t *ext)
Definition: control_external.h:155
int snd_ctl_ext_create(snd_ctl_ext_t *ext, const char *name, int mode)
Create an external control plugin instance.
Definition: control_ext.c:708
char name[32]
Definition: control_external.h:107
Application interface library for the ALSA driver.
int(* read_iec958)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, snd_aes_iec958_t *iec958)
Definition: control_external.h:212
int(* write_iec958)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, snd_aes_iec958_t *iec958)
Definition: control_external.h:233
char longname[80]
Definition: control_external.h:111
void(* close)(snd_ctl_ext_t *ext)
Definition: control_external.h:151
void * private_data
Definition: control_external.h:128
int card_idx
Definition: control_external.h:95
int(* write_integer)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, long *value)
Definition: control_external.h:216
char driver[16]
Definition: control_external.h:103