27 #ifndef __ALSA_CONTROL_EXTERNAL_H
28 #define __ALSA_CONTROL_EXTERNAL_H
30 #ifndef __ASOUNDLIB_LOCAL
31 #include <alsa/asoundlib.h>
46 #define SND_CTL_PLUGIN_ENTRY(name) _snd_ctl_##name##_open
51 #define SND_CTL_PLUGIN_SYMBOL(name) SND_DLSYM_BUILD_VERSION(SND_CTL_PLUGIN_ENTRY(name), SND_CONTROL_DLSYM_VERSION);
56 #define SND_CTL_PLUGIN_DEFINE_FUNC(plugin) \
57 int SND_CTL_PLUGIN_ENTRY(plugin) (snd_ctl_t **handlep, const char *name,\
58 snd_config_t *root, snd_config_t *conf, int mode)
72 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,
73 unsigned int *tlv,
unsigned int tlv_size);
78 #define SND_CTL_EXT_VERSION_MAJOR 1
79 #define SND_CTL_EXT_VERSION_MINOR 0
80 #define SND_CTL_EXT_VERSION_TINY 1
84 #define SND_CTL_EXT_VERSION ((SND_CTL_EXT_VERSION_MAJOR<<16) |\
85 (SND_CTL_EXT_VERSION_MINOR<<8) |\
86 (SND_CTL_EXT_VERSION_TINY))
145 const unsigned int *p;
170 void (*
free_key)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key);
175 int *
type,
unsigned int *acc,
unsigned int *count);
180 long *imin,
long *imax,
long *istep);
185 int64_t *imin, int64_t *imax, int64_t *istep);
194 char *name,
size_t name_max_len);
198 int (*
read_integer)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key,
long *value);
202 int (*
read_integer64)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, int64_t *value);
206 int (*
read_enumerated)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key,
unsigned int *items);
210 int (*
read_bytes)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key,
unsigned char *
data,
219 int (*
write_integer)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key,
long *value);
256 int (*
poll_revents)(snd_ctl_ext_t *ext,
struct pollfd *pfds,
unsigned int nfds,
unsigned short *revents);
262 typedef enum snd_ctl_ext_access {
263 SND_CTL_EXT_ACCESS_READ = (1<<0),
264 SND_CTL_EXT_ACCESS_WRITE = (1<<1),
265 SND_CTL_EXT_ACCESS_READWRITE = (3<<0),
266 SND_CTL_EXT_ACCESS_VOLATILE = (1<<2),
267 SND_CTL_EXT_ACCESS_TLV_READ = (1<<4),
268 SND_CTL_EXT_ACCESS_TLV_WRITE = (1<<5),
269 SND_CTL_EXT_ACCESS_TLV_READWRITE = (3<<4),
270 SND_CTL_EXT_ACCESS_TLV_COMMAND = (1<<6),
271 SND_CTL_EXT_ACCESS_INACTIVE = (1<<8),
272 SND_CTL_EXT_ACCESS_TLV_CALLBACK = (1<<28),
278 #define SND_CTL_EXT_KEY_NOT_FOUND (snd_ctl_ext_key_t)(-1)
int poll_fd
Definition: control_external.h:122
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:210
uint8_t data
Definition: ump_msg.h:188
snd_ctl_t * handle
Definition: control_external.h:135
int subscribed
Definition: control_external.h:138
int(* write_iec958)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, snd_aes_iec958_t *iec958)
Definition: control_external.h:236
int(* read_integer64)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, int64_t *value)
Definition: control_external.h:202
int snd_ctl_ext_delete(snd_ctl_ext_t *ext)
Delete the external control plugin.
Definition: control_ext.c:739
int(* write_integer)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, long *value)
Definition: control_external.h:219
int(* read_event)(snd_ctl_ext_t *ext, snd_ctl_elem_id_t *id, unsigned int *event_mask)
Definition: control_external.h:244
int(* read_enumerated)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, unsigned int *items)
Definition: control_external.h:206
uint8_t type
Definition: ump_msg.h:183
const snd_ctl_ext_callback_t * callback
Definition: control_external.h:127
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:179
int(* elem_count)(snd_ctl_ext_t *ext)
Definition: control_external.h:158
int(* poll_descriptors)(snd_ctl_ext_t *ext, struct pollfd *pfds, unsigned int space)
Definition: control_external.h:252
int(* write_enumerated)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, unsigned int *items)
Definition: control_external.h:227
char mixername[80]
Definition: control_external.h:118
struct _snd_ctl snd_ctl_t
Definition: control.h:369
snd_ctl_ext snd_ctl_ext_t
Definition: control_external.h:68
int(* poll_revents)(snd_ctl_ext_t *ext, struct pollfd *pfds, unsigned int nfds, unsigned short *revents)
Definition: control_external.h:256
int(* get_enumerated_info)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, unsigned int *items)
Definition: control_external.h:189
void(* close)(snd_ctl_ext_t *ext)
Definition: control_external.h:154
struct _snd_ctl_elem_id snd_ctl_elem_id_t
Definition: control.h:88
Definition: control_external.h:150
int(* read_integer)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, long *value)
Definition: control_external.h:198
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:184
unsigned long snd_ctl_ext_key_t
Definition: control_external.h:65
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:193
unsigned int version
Definition: control_external.h:94
void(* free_key)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key)
Definition: control_external.h:170
int(* read_iec958)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, snd_aes_iec958_t *iec958)
Definition: control_external.h:215
Definition: control_external.h:89
snd_ctl_ext_key_t(* find_elem)(snd_ctl_ext_t *ext, const snd_ctl_elem_id_t *id)
Definition: control_external.h:166
int nonblock
Definition: control_external.h:137
union snd_ctl_ext::@27 tlv
int(* write_integer64)(snd_ctl_ext_t *ext, snd_ctl_ext_key_t key, int64_t *value)
Definition: control_external.h:223
snd_ctl_ext_access_t
Definition: control_external.h:262
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:231
snd_ctl_ext_callback snd_ctl_ext_callback_t
Definition: control_external.h:69
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:174
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
void(* subscribe_events)(snd_ctl_ext_t *ext, int subscribe)
Definition: control_external.h:240
char name[32]
Definition: control_external.h:110
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:72
char longname[80]
Definition: control_external.h:114
void * private_data
Definition: control_external.h:131
int(* poll_descriptors_count)(snd_ctl_ext_t *ext)
Definition: control_external.h:248
int card_idx
Definition: control_external.h:98
char driver[16]
Definition: control_external.h:106
int(* elem_list)(snd_ctl_ext_t *ext, unsigned int offset, snd_ctl_elem_id_t *id)
Definition: control_external.h:162