ALSA project - the C library reference: /tmp/work/src/alsa-lib-1.2.8/include/rawmidi.h Source File

ALSA project - the C library reference

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rawmidi.h
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1
11/*
12 * This library is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU Lesser General Public License as
14 * published by the Free Software Foundation; either version 2.1 of
15 * the License, or (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU Lesser General Public License for more details.
21 *
22 * You should have received a copy of the GNU Lesser General Public
23 * License along with this library; if not, write to the Free Software
24 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 *
26 */
27
28#ifndef __ALSA_RAWMIDI_H
29#define __ALSA_RAWMIDI_H
30
31#ifdef __cplusplus
32extern "C" {
33#endif
34
42#define SND_RAWMIDI_DLSYM_VERSION _dlsym_rawmidi_001
43
45 typedef struct _snd_rawmidi_info snd_rawmidi_info_t;
47 typedef struct _snd_rawmidi_params snd_rawmidi_params_t;
49 typedef struct _snd_rawmidi_status snd_rawmidi_status_t;
50
52 typedef enum _snd_rawmidi_stream {
54 SND_RAWMIDI_STREAM_OUTPUT = 0,
56 SND_RAWMIDI_STREAM_INPUT,
57 SND_RAWMIDI_STREAM_LAST = SND_RAWMIDI_STREAM_INPUT
58} snd_rawmidi_stream_t;
59
61#define SND_RAWMIDI_APPEND 0x0001
63#define SND_RAWMIDI_NONBLOCK 0x0002
65#define SND_RAWMIDI_SYNC 0x0004
66
68 typedef struct _snd_rawmidi snd_rawmidi_t;
69
71 typedef enum _snd_rawmidi_type {
73 SND_RAWMIDI_TYPE_HW,
75 SND_RAWMIDI_TYPE_SHM,
77 SND_RAWMIDI_TYPE_INET,
79 SND_RAWMIDI_TYPE_VIRTUAL
80} snd_rawmidi_type_t;
81
83 typedef enum _snd_rawmidi_clock {
84 SND_RAWMIDI_CLOCK_NONE = 0,
85 SND_RAWMIDI_CLOCK_REALTIME = 1,
86 SND_RAWMIDI_CLOCK_MONOTONIC = 2,
87 SND_RAWMIDI_CLOCK_MONOTONIC_RAW = 3,
88} snd_rawmidi_clock_t;
89
91 typedef enum _snd_rawmidi_read_mode {
92 SND_RAWMIDI_READ_STANDARD = 0,
93 SND_RAWMIDI_READ_TSTAMP = 1,
94} snd_rawmidi_read_mode_t;
95
96int snd_rawmidi_open(snd_rawmidi_t **in_rmidi, snd_rawmidi_t **out_rmidi,
97 const char *name, int mode);
98int snd_rawmidi_open_lconf(snd_rawmidi_t **in_rmidi, snd_rawmidi_t **out_rmidi,
99 const char *name, int mode, snd_config_t *lconf);
100int snd_rawmidi_close(snd_rawmidi_t *rmidi);
101int snd_rawmidi_poll_descriptors_count(snd_rawmidi_t *rmidi);
102int snd_rawmidi_poll_descriptors(snd_rawmidi_t *rmidi, struct pollfd *pfds, unsigned int space);
103int snd_rawmidi_poll_descriptors_revents(snd_rawmidi_t *rawmidi, struct pollfd *pfds, unsigned int nfds, unsigned short *revent);
104int snd_rawmidi_nonblock(snd_rawmidi_t *rmidi, int nonblock);
105size_t snd_rawmidi_info_sizeof(void);
110#define snd_rawmidi_info_alloca(ptr) __snd_alloca(ptr, snd_rawmidi_info)
111int snd_rawmidi_info_malloc(snd_rawmidi_info_t **ptr);
112void snd_rawmidi_info_free(snd_rawmidi_info_t *obj);
113void snd_rawmidi_info_copy(snd_rawmidi_info_t *dst, const snd_rawmidi_info_t *src);
114unsigned int snd_rawmidi_info_get_device(const snd_rawmidi_info_t *obj);
115unsigned int snd_rawmidi_info_get_subdevice(const snd_rawmidi_info_t *obj);
116 snd_rawmidi_stream_t snd_rawmidi_info_get_stream(const snd_rawmidi_info_t *obj);
117int snd_rawmidi_info_get_card(const snd_rawmidi_info_t *obj);
118unsigned int snd_rawmidi_info_get_flags(const snd_rawmidi_info_t *obj);
119const char *snd_rawmidi_info_get_id(const snd_rawmidi_info_t *obj);
120const char *snd_rawmidi_info_get_name(const snd_rawmidi_info_t *obj);
121const char *snd_rawmidi_info_get_subdevice_name(const snd_rawmidi_info_t *obj);
122unsigned int snd_rawmidi_info_get_subdevices_count(const snd_rawmidi_info_t *obj);
123unsigned int snd_rawmidi_info_get_subdevices_avail(const snd_rawmidi_info_t *obj);
124void snd_rawmidi_info_set_device(snd_rawmidi_info_t *obj, unsigned int val);
125void snd_rawmidi_info_set_subdevice(snd_rawmidi_info_t *obj, unsigned int val);
126void snd_rawmidi_info_set_stream(snd_rawmidi_info_t *obj, snd_rawmidi_stream_t val);
127int snd_rawmidi_info(snd_rawmidi_t *rmidi, snd_rawmidi_info_t * info);
128size_t snd_rawmidi_params_sizeof(void);
133#define snd_rawmidi_params_alloca(ptr) __snd_alloca(ptr, snd_rawmidi_params)
134int snd_rawmidi_params_malloc(snd_rawmidi_params_t **ptr);
135void snd_rawmidi_params_free(snd_rawmidi_params_t *obj);
136void snd_rawmidi_params_copy(snd_rawmidi_params_t *dst, const snd_rawmidi_params_t *src);
137int snd_rawmidi_params_set_buffer_size(snd_rawmidi_t *rmidi, snd_rawmidi_params_t *params, size_t val);
138size_t snd_rawmidi_params_get_buffer_size(const snd_rawmidi_params_t *params);
139int snd_rawmidi_params_set_avail_min(snd_rawmidi_t *rmidi, snd_rawmidi_params_t *params, size_t val);
140size_t snd_rawmidi_params_get_avail_min(const snd_rawmidi_params_t *params);
141int snd_rawmidi_params_set_no_active_sensing(snd_rawmidi_t *rmidi, snd_rawmidi_params_t *params, int val);
142int snd_rawmidi_params_get_no_active_sensing(const snd_rawmidi_params_t *params);
143int snd_rawmidi_params_set_read_mode(const snd_rawmidi_t *rawmidi, snd_rawmidi_params_t *params, snd_rawmidi_read_mode_t val);
144 snd_rawmidi_read_mode_t snd_rawmidi_params_get_read_mode(const snd_rawmidi_params_t *params);
145int snd_rawmidi_params_set_clock_type(const snd_rawmidi_t *rawmidi, snd_rawmidi_params_t *params, snd_rawmidi_clock_t val);
146 snd_rawmidi_clock_t snd_rawmidi_params_get_clock_type(const snd_rawmidi_params_t *params);
147
148int snd_rawmidi_params(snd_rawmidi_t *rmidi, snd_rawmidi_params_t * params);
149int snd_rawmidi_params_current(snd_rawmidi_t *rmidi, snd_rawmidi_params_t *params);
150size_t snd_rawmidi_status_sizeof(void);
155#define snd_rawmidi_status_alloca(ptr) __snd_alloca(ptr, snd_rawmidi_status)
156int snd_rawmidi_status_malloc(snd_rawmidi_status_t **ptr);
157void snd_rawmidi_status_free(snd_rawmidi_status_t *obj);
158void snd_rawmidi_status_copy(snd_rawmidi_status_t *dst, const snd_rawmidi_status_t *src);
159void snd_rawmidi_status_get_tstamp(const snd_rawmidi_status_t *obj, snd_htimestamp_t *ptr);
160size_t snd_rawmidi_status_get_avail(const snd_rawmidi_status_t *obj);
161size_t snd_rawmidi_status_get_xruns(const snd_rawmidi_status_t *obj);
162int snd_rawmidi_status(snd_rawmidi_t *rmidi, snd_rawmidi_status_t * status);
163int snd_rawmidi_drain(snd_rawmidi_t *rmidi);
164int snd_rawmidi_drop(snd_rawmidi_t *rmidi);
165ssize_t snd_rawmidi_write(snd_rawmidi_t *rmidi, const void *buffer, size_t size);
166ssize_t snd_rawmidi_read(snd_rawmidi_t *rmidi, void *buffer, size_t size);
167ssize_t snd_rawmidi_tread(snd_rawmidi_t *rmidi, struct timespec *tstamp, void *buffer, size_t size);
168const char *snd_rawmidi_name(snd_rawmidi_t *rmidi);
169 snd_rawmidi_type_t snd_rawmidi_type(snd_rawmidi_t *rmidi);
170 snd_rawmidi_stream_t snd_rawmidi_stream(snd_rawmidi_t *rawmidi);
171
174#ifdef __cplusplus
175}
176#endif
177
178#endif /* __RAWMIDI_H */
179
snd_config_t
struct _snd_config snd_config_t
Internal structure for a configuration node object.
Definition: conf.h:69
snd_htimestamp_t
struct timespec snd_htimestamp_t
Definition: global.h:154
snd_rawmidi_drop
int snd_rawmidi_drop(snd_rawmidi_t *rmidi)
drop all bytes in the rawmidi I/O ring buffer immediately
Definition: rawmidi.c:1053
snd_rawmidi_write
ssize_t snd_rawmidi_write(snd_rawmidi_t *rmidi, const void *buffer, size_t size)
write MIDI bytes to MIDI stream
Definition: rawmidi.c:1079
snd_rawmidi_params_get_buffer_size
size_t snd_rawmidi_params_get_buffer_size(const snd_rawmidi_params_t *params)
get rawmidi I/O ring buffer size
Definition: rawmidi.c:761
snd_rawmidi_status_t
struct _snd_rawmidi_status snd_rawmidi_status_t
Definition: rawmidi.h:49
snd_rawmidi_info_malloc
int snd_rawmidi_info_malloc(snd_rawmidi_info_t **ptr)
allocate a new snd_rawmidi_info_t structure
Definition: rawmidi.c:498
snd_rawmidi_clock_t
snd_rawmidi_clock_t
Definition: rawmidi.h:83
snd_rawmidi_info_get_id
const char * snd_rawmidi_info_get_id(const snd_rawmidi_info_t *obj)
get rawmidi hardware driver identifier
Definition: rawmidi.c:591
snd_rawmidi_poll_descriptors
int snd_rawmidi_poll_descriptors(snd_rawmidi_t *rmidi, struct pollfd *pfds, unsigned int space)
get poll descriptors
Definition: rawmidi.c:429
snd_rawmidi_type_t
snd_rawmidi_type_t
Definition: rawmidi.h:71
snd_rawmidi_stream
snd_rawmidi_stream_t snd_rawmidi_stream(snd_rawmidi_t *rawmidi)
get stream (direction) of RawMidi handle
Definition: rawmidi.c:405
snd_rawmidi_open
int snd_rawmidi_open(snd_rawmidi_t **in_rmidi, snd_rawmidi_t **out_rmidi, const char *name, int mode)
Opens a new connection to the RawMidi interface.
Definition: rawmidi.c:311
snd_rawmidi_info_sizeof
size_t snd_rawmidi_info_sizeof(void)
get size of the snd_rawmidi_info_t structure in bytes
Definition: rawmidi.c:485
snd_rawmidi_poll_descriptors_revents
int snd_rawmidi_poll_descriptors_revents(snd_rawmidi_t *rawmidi, struct pollfd *pfds, unsigned int nfds, unsigned short *revent)
get returned events from poll descriptors
Definition: rawmidi.c:448
snd_rawmidi_poll_descriptors_count
int snd_rawmidi_poll_descriptors_count(snd_rawmidi_t *rmidi)
get count of poll descriptors for RawMidi handle
Definition: rawmidi.c:416
snd_rawmidi_info
int snd_rawmidi_info(snd_rawmidi_t *rmidi, snd_rawmidi_info_t *info)
get information about RawMidi handle
Definition: rawmidi.c:680
snd_rawmidi_info_get_subdevice
unsigned int snd_rawmidi_info_get_subdevice(const snd_rawmidi_info_t *obj)
get rawmidi subdevice number
Definition: rawmidi.c:547
snd_rawmidi_params
int snd_rawmidi_params(snd_rawmidi_t *rmidi, snd_rawmidi_params_t *params)
set parameters about rawmidi stream
Definition: rawmidi.c:920
snd_rawmidi_info_get_card
int snd_rawmidi_info_get_card(const snd_rawmidi_info_t *obj)
get rawmidi card number
Definition: rawmidi.c:569
snd_rawmidi_info_set_subdevice
void snd_rawmidi_info_set_subdevice(snd_rawmidi_info_t *obj, unsigned int val)
set rawmidi subdevice number
Definition: rawmidi.c:657
snd_rawmidi_params_get_read_mode
snd_rawmidi_read_mode_t snd_rawmidi_params_get_read_mode(const snd_rawmidi_params_t *params)
get current read mode
Definition: rawmidi.c:867
snd_rawmidi_params_copy
void snd_rawmidi_params_copy(snd_rawmidi_params_t *dst, const snd_rawmidi_params_t *src)
copy one snd_rawmidi_params_t structure to another
Definition: rawmidi.c:731
snd_rawmidi_tread
ssize_t snd_rawmidi_tread(snd_rawmidi_t *rmidi, struct timespec *tstamp, void *buffer, size_t size)
read MIDI bytes from MIDI stream with timestamp
Definition: rawmidi.c:1112
snd_rawmidi_params_set_read_mode
int snd_rawmidi_params_set_read_mode(const snd_rawmidi_t *rawmidi, snd_rawmidi_params_t *params, snd_rawmidi_read_mode_t val)
set read mode
Definition: rawmidi.c:837
snd_rawmidi_type
snd_rawmidi_type_t snd_rawmidi_type(snd_rawmidi_t *rmidi)
get type of RawMidi handle
Definition: rawmidi.c:392
snd_rawmidi_params_set_buffer_size
int snd_rawmidi_params_set_buffer_size(snd_rawmidi_t *rmidi, snd_rawmidi_params_t *params, size_t val)
set rawmidi I/O ring buffer size
Definition: rawmidi.c:747
snd_rawmidi_params_get_no_active_sensing
int snd_rawmidi_params_get_no_active_sensing(const snd_rawmidi_params_t *params)
get no-active-sensing action status
Definition: rawmidi.c:819
snd_rawmidi_info_get_name
const char * snd_rawmidi_info_get_name(const snd_rawmidi_info_t *obj)
get rawmidi hardware driver name
Definition: rawmidi.c:602
snd_rawmidi_info_get_subdevices_avail
unsigned int snd_rawmidi_info_get_subdevices_avail(const snd_rawmidi_info_t *obj)
get rawmidi available count of subdevices
Definition: rawmidi.c:635
snd_rawmidi_info_get_stream
snd_rawmidi_stream_t snd_rawmidi_info_get_stream(const snd_rawmidi_info_t *obj)
get rawmidi stream identification
Definition: rawmidi.c:558
snd_rawmidi_status_sizeof
size_t snd_rawmidi_status_sizeof(void)
get size of the snd_rawmidi_status_t structure in bytes
Definition: rawmidi.c:956
snd_rawmidi_status_get_avail
size_t snd_rawmidi_status_get_avail(const snd_rawmidi_status_t *obj)
get current available bytes in the rawmidi I/O ring buffer
Definition: rawmidi.c:1018
snd_rawmidi_params_current
int snd_rawmidi_params_current(snd_rawmidi_t *rmidi, snd_rawmidi_params_t *params)
get current parameters about rawmidi stream
Definition: rawmidi.c:941
snd_rawmidi_params_set_avail_min
int snd_rawmidi_params_set_avail_min(snd_rawmidi_t *rmidi, snd_rawmidi_params_t *params, size_t val)
set minimum available bytes in rawmidi I/O ring buffer for wakeup
Definition: rawmidi.c:776
snd_rawmidi_params_set_clock_type
int snd_rawmidi_params_set_clock_type(const snd_rawmidi_t *rawmidi, snd_rawmidi_params_t *params, snd_rawmidi_clock_t val)
sets clock type for tstamp type framing
Definition: rawmidi.c:890
snd_rawmidi_params_t
struct _snd_rawmidi_params snd_rawmidi_params_t
Definition: rawmidi.h:47
snd_rawmidi_info_set_device
void snd_rawmidi_info_set_device(snd_rawmidi_info_t *obj, unsigned int val)
set rawmidi device number
Definition: rawmidi.c:646
snd_rawmidi_read
ssize_t snd_rawmidi_read(snd_rawmidi_t *rmidi, void *buffer, size_t size)
read MIDI bytes from MIDI stream
Definition: rawmidi.c:1094
snd_rawmidi_t
struct _snd_rawmidi snd_rawmidi_t
Definition: rawmidi.h:68
snd_rawmidi_open_lconf
int snd_rawmidi_open_lconf(snd_rawmidi_t **in_rmidi, snd_rawmidi_t **out_rmidi, const char *name, int mode, snd_config_t *lconf)
Opens a new connection to the RawMidi interface using local configuration.
Definition: rawmidi.c:344
snd_rawmidi_info_free
void snd_rawmidi_info_free(snd_rawmidi_info_t *obj)
frees the snd_rawmidi_info_t structure
Definition: rawmidi.c:514
snd_rawmidi_info_t
struct _snd_rawmidi_info snd_rawmidi_info_t
Definition: rawmidi.h:45
snd_rawmidi_status_copy
void snd_rawmidi_status_copy(snd_rawmidi_status_t *dst, const snd_rawmidi_status_t *src)
copy one snd_rawmidi_status_t structure to another
Definition: rawmidi.c:996
snd_rawmidi_params_set_no_active_sensing
int snd_rawmidi_params_set_no_active_sensing(snd_rawmidi_t *rmidi, snd_rawmidi_params_t *params, int val)
set no-active-sensing action on snd_rawmidi_close()
Definition: rawmidi.c:806
snd_rawmidi_status
int snd_rawmidi_status(snd_rawmidi_t *rmidi, snd_rawmidi_status_t *status)
get status of rawmidi stream
Definition: rawmidi.c:1041
snd_rawmidi_close
int snd_rawmidi_close(snd_rawmidi_t *rmidi)
close RawMidi handle
Definition: rawmidi.c:359
snd_rawmidi_info_copy
void snd_rawmidi_info_copy(snd_rawmidi_info_t *dst, const snd_rawmidi_info_t *src)
copy one snd_rawmidi_info_t structure to another
Definition: rawmidi.c:525
snd_rawmidi_drain
int snd_rawmidi_drain(snd_rawmidi_t *rmidi)
drain all bytes in the rawmidi I/O ring buffer
Definition: rawmidi.c:1067
snd_rawmidi_info_get_subdevices_count
unsigned int snd_rawmidi_info_get_subdevices_count(const snd_rawmidi_info_t *obj)
get rawmidi count of subdevices
Definition: rawmidi.c:624
snd_rawmidi_status_malloc
int snd_rawmidi_status_malloc(snd_rawmidi_status_t **ptr)
allocate the snd_rawmidi_status_t structure
Definition: rawmidi.c:969
snd_rawmidi_stream_t
snd_rawmidi_stream_t
Definition: rawmidi.h:52
snd_rawmidi_status_free
void snd_rawmidi_status_free(snd_rawmidi_status_t *obj)
frees the snd_rawmidi_status_t structure
Definition: rawmidi.c:985
snd_rawmidi_params_get_clock_type
snd_rawmidi_clock_t snd_rawmidi_params_get_clock_type(const snd_rawmidi_params_t *params)
get current clock type (for tstamp type framing)
Definition: rawmidi.c:907
snd_rawmidi_info_get_device
unsigned int snd_rawmidi_info_get_device(const snd_rawmidi_info_t *obj)
get rawmidi device number
Definition: rawmidi.c:536
snd_rawmidi_info_set_stream
void snd_rawmidi_info_set_stream(snd_rawmidi_info_t *obj, snd_rawmidi_stream_t val)
set rawmidi stream identifier
Definition: rawmidi.c:668
snd_rawmidi_params_free
void snd_rawmidi_params_free(snd_rawmidi_params_t *obj)
frees the snd_rawmidi_params_t structure
Definition: rawmidi.c:720
snd_rawmidi_status_get_xruns
size_t snd_rawmidi_status_get_xruns(const snd_rawmidi_status_t *obj)
get count of xruns
Definition: rawmidi.c:1029
snd_rawmidi_params_get_avail_min
size_t snd_rawmidi_params_get_avail_min(const snd_rawmidi_params_t *params)
get minimum available bytes in rawmidi I/O ring buffer for wakeup
Definition: rawmidi.c:790
snd_rawmidi_info_get_subdevice_name
const char * snd_rawmidi_info_get_subdevice_name(const snd_rawmidi_info_t *obj)
get rawmidi subdevice name
Definition: rawmidi.c:613
snd_rawmidi_params_sizeof
size_t snd_rawmidi_params_sizeof(void)
get size of the snd_rawmidi_params_t structure in bytes
Definition: rawmidi.c:691
snd_rawmidi_status_get_tstamp
void snd_rawmidi_status_get_tstamp(const snd_rawmidi_status_t *obj, snd_htimestamp_t *ptr)
get the start timestamp
Definition: rawmidi.c:1007
snd_rawmidi_params_malloc
int snd_rawmidi_params_malloc(snd_rawmidi_params_t **ptr)
allocate the snd_rawmidi_params_t structure
Definition: rawmidi.c:704
snd_rawmidi_name
const char * snd_rawmidi_name(snd_rawmidi_t *rmidi)
get identifier of RawMidi handle
Definition: rawmidi.c:379
snd_rawmidi_info_get_flags
unsigned int snd_rawmidi_info_get_flags(const snd_rawmidi_info_t *obj)
get rawmidi flags
Definition: rawmidi.c:580
snd_rawmidi_read_mode_t
snd_rawmidi_read_mode_t
Definition: rawmidi.h:91
snd_rawmidi_nonblock
int snd_rawmidi_nonblock(snd_rawmidi_t *rmidi, int nonblock)
set nonblock mode
Definition: rawmidi.c:467
SND_RAWMIDI_TYPE_SHM
@ SND_RAWMIDI_TYPE_SHM
Definition: rawmidi.h:75
SND_RAWMIDI_TYPE_HW
@ SND_RAWMIDI_TYPE_HW
Definition: rawmidi.h:73
SND_RAWMIDI_TYPE_INET
@ SND_RAWMIDI_TYPE_INET
Definition: rawmidi.h:77
SND_RAWMIDI_TYPE_VIRTUAL
@ SND_RAWMIDI_TYPE_VIRTUAL
Definition: rawmidi.h:79
SND_RAWMIDI_STREAM_INPUT
@ SND_RAWMIDI_STREAM_INPUT
Definition: rawmidi.h:56
SND_RAWMIDI_STREAM_OUTPUT
@ SND_RAWMIDI_STREAM_OUTPUT
Definition: rawmidi.h:54
ptr
void * ptr
Definition: seq_event.h:1