1 | /** |
2 | * \file include/rawmidi.h |
3 | * \brief Application interface library for the ALSA driver |
4 | * \author Jaroslav Kysela <perex@perex.cz> |
5 | * \author Abramo Bagnara <abramo@alsa-project.org> |
6 | * \author Takashi Iwai <tiwai@suse.de> |
7 | * \date 1998-2001 |
8 | * |
9 | * Application interface library for the ALSA driver |
10 | */ |
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 |
32 | extern "C" { |
33 | #endif |
34 | |
35 | /** |
36 | * \defgroup RawMidi RawMidi Interface |
37 | * The RawMidi Interface. See \ref rawmidi page for more details. |
38 | * \{ |
39 | */ |
40 | |
41 | /** dlsym version for interface entry callback */ |
42 | #define SND_RAWMIDI_DLSYM_VERSION _dlsym_rawmidi_001 |
43 | |
44 | /** RawMidi information container */ |
45 | typedef struct _snd_rawmidi_info snd_rawmidi_info_t; |
46 | /** RawMidi settings container */ |
47 | typedef struct _snd_rawmidi_params snd_rawmidi_params_t; |
48 | /** RawMidi status container */ |
49 | typedef struct _snd_rawmidi_status snd_rawmidi_status_t; |
50 | |
51 | /** RawMidi stream (direction) */ |
52 | typedef enum _snd_rawmidi_stream { |
53 | /** Output stream */ |
54 | SND_RAWMIDI_STREAM_OUTPUT = 0, |
55 | /** Input stream */ |
56 | SND_RAWMIDI_STREAM_INPUT, |
57 | SND_RAWMIDI_STREAM_LAST = SND_RAWMIDI_STREAM_INPUT |
58 | } snd_rawmidi_stream_t; |
59 | |
60 | /** Append (flag to open mode) \hideinitializer */ |
61 | #define SND_RAWMIDI_APPEND 0x0001 |
62 | /** Non blocking mode (flag to open mode) \hideinitializer */ |
63 | #define SND_RAWMIDI_NONBLOCK 0x0002 |
64 | /** Write sync mode (Flag to open mode) \hideinitializer */ |
65 | #define SND_RAWMIDI_SYNC 0x0004 |
66 | |
67 | /** RawMidi handle */ |
68 | typedef struct _snd_rawmidi snd_rawmidi_t; |
69 | |
70 | /** RawMidi type */ |
71 | typedef enum _snd_rawmidi_type { |
72 | /** Kernel level RawMidi */ |
73 | SND_RAWMIDI_TYPE_HW, |
74 | /** Shared memory client RawMidi (not yet implemented) */ |
75 | SND_RAWMIDI_TYPE_SHM, |
76 | /** INET client RawMidi (not yet implemented) */ |
77 | SND_RAWMIDI_TYPE_INET, |
78 | /** Virtual (sequencer) RawMidi */ |
79 | SND_RAWMIDI_TYPE_VIRTUAL |
80 | } snd_rawmidi_type_t; |
81 | |
82 | /** Type of clock used with rawmidi timestamp */ |
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 | |
90 | /** Select the read mode (standard or with timestamps) */ |
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 | |
96 | int snd_rawmidi_open(snd_rawmidi_t **in_rmidi, snd_rawmidi_t **out_rmidi, |
97 | const char *name, int mode); |
98 | int snd_rawmidi_open_lconf(snd_rawmidi_t **in_rmidi, snd_rawmidi_t **out_rmidi, |
99 | const char *name, int mode, snd_config_t *lconf); |
100 | int snd_rawmidi_close(snd_rawmidi_t *rmidi); |
101 | int snd_rawmidi_poll_descriptors_count(snd_rawmidi_t *rmidi); |
102 | int snd_rawmidi_poll_descriptors(snd_rawmidi_t *rmidi, struct pollfd *pfds, unsigned int space); |
103 | int snd_rawmidi_poll_descriptors_revents(snd_rawmidi_t *rawmidi, struct pollfd *pfds, unsigned int nfds, unsigned short *revent); |
104 | int snd_rawmidi_nonblock(snd_rawmidi_t *rmidi, int nonblock); |
105 | size_t snd_rawmidi_info_sizeof(void); |
106 | /** \hideinitializer |
107 | * \brief allocate an invalid #snd_rawmidi_info_t using standard alloca |
108 | * \param ptr returned pointer |
109 | */ |
110 | #define snd_rawmidi_info_alloca(ptr) __snd_alloca(ptr, snd_rawmidi_info) |
111 | int snd_rawmidi_info_malloc(snd_rawmidi_info_t **ptr); |
112 | void snd_rawmidi_info_free(snd_rawmidi_info_t *obj); |
113 | void snd_rawmidi_info_copy(snd_rawmidi_info_t *dst, const snd_rawmidi_info_t *src); |
114 | unsigned int snd_rawmidi_info_get_device(const snd_rawmidi_info_t *obj); |
115 | unsigned 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); |
117 | int snd_rawmidi_info_get_card(const snd_rawmidi_info_t *obj); |
118 | unsigned int snd_rawmidi_info_get_flags(const snd_rawmidi_info_t *obj); |
119 | const char *snd_rawmidi_info_get_id(const snd_rawmidi_info_t *obj); |
120 | const char *snd_rawmidi_info_get_name(const snd_rawmidi_info_t *obj); |
121 | const char *snd_rawmidi_info_get_subdevice_name(const snd_rawmidi_info_t *obj); |
122 | unsigned int snd_rawmidi_info_get_subdevices_count(const snd_rawmidi_info_t *obj); |
123 | unsigned int snd_rawmidi_info_get_subdevices_avail(const snd_rawmidi_info_t *obj); |
124 | void snd_rawmidi_info_set_device(snd_rawmidi_info_t *obj, unsigned int val); |
125 | void snd_rawmidi_info_set_subdevice(snd_rawmidi_info_t *obj, unsigned int val); |
126 | void snd_rawmidi_info_set_stream(snd_rawmidi_info_t *obj, snd_rawmidi_stream_t val); |
127 | int snd_rawmidi_info(snd_rawmidi_t *rmidi, snd_rawmidi_info_t * info); |
128 | size_t snd_rawmidi_params_sizeof(void); |
129 | /** \hideinitializer |
130 | * \brief allocate an invalid #snd_rawmidi_params_t using standard alloca |
131 | * \param ptr returned pointer |
132 | */ |
133 | #define snd_rawmidi_params_alloca(ptr) __snd_alloca(ptr, snd_rawmidi_params) |
134 | int snd_rawmidi_params_malloc(snd_rawmidi_params_t **ptr); |
135 | void snd_rawmidi_params_free(snd_rawmidi_params_t *obj); |
136 | void snd_rawmidi_params_copy(snd_rawmidi_params_t *dst, const snd_rawmidi_params_t *src); |
137 | int snd_rawmidi_params_set_buffer_size(snd_rawmidi_t *rmidi, snd_rawmidi_params_t *params, size_t val); |
138 | size_t snd_rawmidi_params_get_buffer_size(const snd_rawmidi_params_t *params); |
139 | int snd_rawmidi_params_set_avail_min(snd_rawmidi_t *rmidi, snd_rawmidi_params_t *params, size_t val); |
140 | size_t snd_rawmidi_params_get_avail_min(const snd_rawmidi_params_t *params); |
141 | int snd_rawmidi_params_set_no_active_sensing(snd_rawmidi_t *rmidi, snd_rawmidi_params_t *params, int val); |
142 | int snd_rawmidi_params_get_no_active_sensing(const snd_rawmidi_params_t *params); |
143 | int 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); |
145 | int 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 | |
148 | int snd_rawmidi_params(snd_rawmidi_t *rmidi, snd_rawmidi_params_t * params); |
149 | int snd_rawmidi_params_current(snd_rawmidi_t *rmidi, snd_rawmidi_params_t *params); |
150 | size_t snd_rawmidi_status_sizeof(void); |
151 | /** \hideinitializer |
152 | * \brief allocate an invalid #snd_rawmidi_status_t using standard alloca |
153 | * \param ptr returned pointer |
154 | */ |
155 | #define snd_rawmidi_status_alloca(ptr) __snd_alloca(ptr, snd_rawmidi_status) |
156 | int snd_rawmidi_status_malloc(snd_rawmidi_status_t **ptr); |
157 | void snd_rawmidi_status_free(snd_rawmidi_status_t *obj); |
158 | void snd_rawmidi_status_copy(snd_rawmidi_status_t *dst, const snd_rawmidi_status_t *src); |
159 | void snd_rawmidi_status_get_tstamp(const snd_rawmidi_status_t *obj, snd_htimestamp_t *ptr); |
160 | size_t snd_rawmidi_status_get_avail(const snd_rawmidi_status_t *obj); |
161 | size_t snd_rawmidi_status_get_xruns(const snd_rawmidi_status_t *obj); |
162 | int snd_rawmidi_status(snd_rawmidi_t *rmidi, snd_rawmidi_status_t * status); |
163 | int snd_rawmidi_drain(snd_rawmidi_t *rmidi); |
164 | int snd_rawmidi_drop(snd_rawmidi_t *rmidi); |
165 | ssize_t snd_rawmidi_write(snd_rawmidi_t *rmidi, const void *buffer, size_t size); |
166 | ssize_t snd_rawmidi_read(snd_rawmidi_t *rmidi, void *buffer, size_t size); |
167 | ssize_t snd_rawmidi_tread(snd_rawmidi_t *rmidi, struct timespec *tstamp, void *buffer, size_t size); |
168 | const 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 | |
172 | /** \} */ |
173 | |
174 | #ifdef __cplusplus |
175 | } |
176 | #endif |
177 | |
178 | #endif /* __RAWMIDI_H */ |
179 | |
180 | |