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seq_event.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_SEQ_EVENT_H
29 #define __ALSA_SEQ_EVENT_H
30 
41 typedef unsigned char snd_seq_event_type_t;
42 
44 enum snd_seq_event_type {
46  SND_SEQ_EVENT_SYSTEM = 0,
48  SND_SEQ_EVENT_RESULT,
49 
51  SND_SEQ_EVENT_NOTE = 5,
53  SND_SEQ_EVENT_NOTEON,
55  SND_SEQ_EVENT_NOTEOFF,
57  SND_SEQ_EVENT_KEYPRESS,
58 
60  SND_SEQ_EVENT_CONTROLLER = 10,
62  SND_SEQ_EVENT_PGMCHANGE,
64  SND_SEQ_EVENT_CHANPRESS,
66  SND_SEQ_EVENT_PITCHBEND,
68  SND_SEQ_EVENT_CONTROL14,
70  SND_SEQ_EVENT_NONREGPARAM,
72  SND_SEQ_EVENT_REGPARAM,
73 
75  SND_SEQ_EVENT_SONGPOS = 20,
77  SND_SEQ_EVENT_SONGSEL,
79  SND_SEQ_EVENT_QFRAME,
81  SND_SEQ_EVENT_TIMESIGN,
83  SND_SEQ_EVENT_KEYSIGN,
84 
86  SND_SEQ_EVENT_START = 30,
88  SND_SEQ_EVENT_CONTINUE,
90  SND_SEQ_EVENT_STOP,
92  SND_SEQ_EVENT_SETPOS_TICK,
94  SND_SEQ_EVENT_SETPOS_TIME,
96  SND_SEQ_EVENT_TEMPO,
98  SND_SEQ_EVENT_CLOCK,
100  SND_SEQ_EVENT_TICK,
102  SND_SEQ_EVENT_QUEUE_SKEW,
104  SND_SEQ_EVENT_SYNC_POS,
105 
107  SND_SEQ_EVENT_TUNE_REQUEST = 40,
109  SND_SEQ_EVENT_RESET,
111  SND_SEQ_EVENT_SENSING,
112 
114  SND_SEQ_EVENT_ECHO = 50,
116  SND_SEQ_EVENT_OSS,
117 
119  SND_SEQ_EVENT_CLIENT_START = 60,
121  SND_SEQ_EVENT_CLIENT_EXIT,
123  SND_SEQ_EVENT_CLIENT_CHANGE,
125  SND_SEQ_EVENT_PORT_START,
127  SND_SEQ_EVENT_PORT_EXIT,
129  SND_SEQ_EVENT_PORT_CHANGE,
130 
132  SND_SEQ_EVENT_PORT_SUBSCRIBED,
134  SND_SEQ_EVENT_PORT_UNSUBSCRIBED,
135 
137  SND_SEQ_EVENT_USR0 = 90,
139  SND_SEQ_EVENT_USR1,
141  SND_SEQ_EVENT_USR2,
143  SND_SEQ_EVENT_USR3,
145  SND_SEQ_EVENT_USR4,
147  SND_SEQ_EVENT_USR5,
149  SND_SEQ_EVENT_USR6,
151  SND_SEQ_EVENT_USR7,
153  SND_SEQ_EVENT_USR8,
155  SND_SEQ_EVENT_USR9,
156 
158  SND_SEQ_EVENT_SYSEX = 130,
160  SND_SEQ_EVENT_BOUNCE,
162  SND_SEQ_EVENT_USR_VAR0 = 135,
164  SND_SEQ_EVENT_USR_VAR1,
166  SND_SEQ_EVENT_USR_VAR2,
168  SND_SEQ_EVENT_USR_VAR3,
170  SND_SEQ_EVENT_USR_VAR4,
171 
173  SND_SEQ_EVENT_NONE = 255
174 };
175 
176 
178 typedef struct snd_seq_addr {
179  unsigned char client;
180  unsigned char port;
181 } snd_seq_addr_t;
182 
184 typedef struct snd_seq_connect {
185  snd_seq_addr_t sender;
186  snd_seq_addr_t dest;
187 } snd_seq_connect_t;
188 
189 
191 typedef struct snd_seq_real_time {
192  unsigned int tv_sec;
193  unsigned int tv_nsec;
194 } snd_seq_real_time_t;
195 
197 typedef unsigned int snd_seq_tick_time_t;
198 
200 typedef union snd_seq_timestamp {
201  snd_seq_tick_time_t tick;
202  struct snd_seq_real_time time;
203 } snd_seq_timestamp_t;
204 
205 
211 #define SND_SEQ_TIME_STAMP_TICK (0<<0)
212 #define SND_SEQ_TIME_STAMP_REAL (1<<0)
213 #define SND_SEQ_TIME_STAMP_MASK (1<<0)
215 #define SND_SEQ_TIME_MODE_ABS (0<<1)
216 #define SND_SEQ_TIME_MODE_REL (1<<1)
217 #define SND_SEQ_TIME_MODE_MASK (1<<1)
219 #define SND_SEQ_EVENT_LENGTH_FIXED (0<<2)
220 #define SND_SEQ_EVENT_LENGTH_VARIABLE (1<<2)
221 #define SND_SEQ_EVENT_LENGTH_VARUSR (2<<2)
222 #define SND_SEQ_EVENT_LENGTH_MASK (3<<2)
224 #define SND_SEQ_PRIORITY_NORMAL (0<<4)
225 #define SND_SEQ_PRIORITY_HIGH (1<<4)
226 #define SND_SEQ_PRIORITY_MASK (1<<4)
230 typedef struct snd_seq_ev_note {
231  unsigned char channel;
232  unsigned char note;
233  unsigned char velocity;
234  unsigned char off_velocity;
235  unsigned int duration;
236 } snd_seq_ev_note_t;
237 
239 typedef struct snd_seq_ev_ctrl {
240  unsigned char channel;
241  unsigned char unused[3];
242  unsigned int param;
243  signed int value;
244 } snd_seq_ev_ctrl_t;
245 
247 typedef struct snd_seq_ev_raw8 {
248  unsigned char d[12];
249 } snd_seq_ev_raw8_t;
250 
252 typedef struct snd_seq_ev_raw32 {
253  unsigned int d[3];
254 } snd_seq_ev_raw32_t;
255 
257 struct snd_seq_ev_ext {
258  unsigned int len;
259  void *ptr;
260 } __attribute__((packed));
262 typedef struct snd_seq_ev_ext snd_seq_ev_ext_t;
263 #ifdef DOC_HIDDEN
264 /* redefine typedef for stupid doxygen */
265 typedef snd_seq_ev_ext snd_seq_ev_ext_t;
266 #endif
267 
269 typedef struct snd_seq_result {
270  int event;
271  int result;
272 } snd_seq_result_t;
273 
275 typedef struct snd_seq_queue_skew {
276  unsigned int value;
277  unsigned int base;
278 } snd_seq_queue_skew_t;
279 
281 typedef struct snd_seq_ev_queue_control {
282  unsigned char queue;
283  unsigned char unused[3];
284  union {
285  signed int value;
286  snd_seq_timestamp_t time;
287  unsigned int position;
288  snd_seq_queue_skew_t skew;
289  unsigned int d32[2];
290  unsigned char d8[8];
291  } param;
292 } snd_seq_ev_queue_control_t;
293 
294 
296 typedef struct snd_seq_event {
297  snd_seq_event_type_t type;
298  unsigned char flags;
299  unsigned char tag;
301  unsigned char queue;
302  snd_seq_timestamp_t time;
304  snd_seq_addr_t source;
305  snd_seq_addr_t dest;
307  union {
308  snd_seq_ev_note_t note;
309  snd_seq_ev_ctrl_t control;
310  snd_seq_ev_raw8_t raw8;
311  snd_seq_ev_raw32_t raw32;
312  snd_seq_ev_ext_t ext;
313  snd_seq_ev_queue_control_t queue;
314  snd_seq_timestamp_t time;
315  snd_seq_addr_t addr;
316  snd_seq_connect_t connect;
317  snd_seq_result_t result;
318  } data;
319 } snd_seq_event_t;
320 
321 
324 #endif /* __ALSA_SEQ_EVENT_H */
325 
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