1 /*
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2022 Goran Mekić
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 #include <unistd.h>
29
30 #include "ossmidi.h"
31
32 int
main()33 main()
34 {
35 midi_event_t event;
36 midi_config_t midi_config;
37 int l = -1;
38 unsigned char raw;
39
40 midi_config.device = "/dev/umidi1.0";
41 oss_midi_init(&midi_config);
42
43 while ((l = read(midi_config.fd, &raw, sizeof(raw))) != -1) {
44 if (!(raw & 0x80)) {
45 continue;
46 }
47 event.type = raw & CMD_MASK;
48 event.channel = raw & CHANNEL_MASK;
49 switch (event.type) {
50 case NOTE_ON:
51 case NOTE_OFF:
52 case CONTROLER_ON:
53 if ((l = read(midi_config.fd, &(event.note), sizeof(event.note))) == -1) {
54 perror("Error reading MIDI note");
55 exit(1);
56 }
57 if ((l = read(midi_config.fd, &(event.velocity), sizeof(event.velocity))) == -1) {
58 perror("Error reading MIDI velocity");
59 exit(1);
60 }
61 break;
62 }
63 switch (event.type) {
64 case NOTE_ON:
65 case NOTE_OFF:
66 printf("Channel %d, note %d, velocity %d\n", event.channel, event.note, event.velocity);
67 break;
68 case CONTROLER_ON:
69 printf("Channel %d, controller %d, value %d\n", event.channel, event.controller, event.value);
70 break;
71 default:
72 printf("Unknown event type %d\n", event.type);
73 }
74 }
75 return 0;
76 }
77