1/*
2 * Copyright (c) 2003, 2007, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26#include <alsa/asoundlib.h>
27#include "Utilities.h"
28#include "PlatformMidi.h"
29
30
31#ifndef PLATFORM_API_LINUXOS_ALSA_MIDIUTILS_H_INCLUDED
32#define PLATFORM_API_LINUXOS_ALSA_MIDIUTILS_H_INCLUDED
33
34#define EVENT_PARSER_BUFSIZE (2048)
35
36// if this is defined, use plughw: devices
37//#define ALSA_MIDI_USE_PLUGHW
38#undef ALSA_MIDI_USE_PLUGHW
39
40typedef struct tag_ALSA_MIDIDeviceDescription {
41 int index; // in
42 int strLen; // in
43 INT32 deviceID; // out
44 char* name; // out
45 char* description; // out
46} ALSA_MIDIDeviceDescription;
47
48
49const char* getErrorStr(INT32 err);
50
51/* Returns the number of devices. */
52/* direction is either SND_RAWMIDI_STREAM_OUTPUT or
53 SND_RAWMIDI_STREAM_INPUT. */
54int getMidiDeviceCount(snd_rawmidi_stream_t direction);
55
56/* Returns MIDI_SUCCESS or MIDI_INVALID_DEVICEID */
57/* direction is either SND_RAWMIDI_STREAM_OUTPUT or
58 SND_RAWMIDI_STREAM_INPUT. */
59int getMidiDeviceName(snd_rawmidi_stream_t direction, int index,
60 char *name, UINT32 nameLength);
61
62/* Returns MIDI_SUCCESS or MIDI_INVALID_DEVICEID */
63int getMidiDeviceVendor(int index, char *name, UINT32 nameLength);
64
65/* Returns MIDI_SUCCESS or MIDI_INVALID_DEVICEID */
66/* direction is either SND_RAWMIDI_STREAM_OUTPUT or
67 SND_RAWMIDI_STREAM_INPUT. */
68int getMidiDeviceDescription(snd_rawmidi_stream_t direction, int index,
69 char *name, UINT32 nameLength);
70
71/* Returns MIDI_SUCCESS or MIDI_INVALID_DEVICEID */
72int getMidiDeviceVersion(int index, char *name, UINT32 nameLength);
73
74// returns 0 on success, otherwise MIDI_OUT_OF_MEMORY or ALSA error code
75/* direction is either SND_RAWMIDI_STREAM_OUTPUT or
76 SND_RAWMIDI_STREAM_INPUT. */
77INT32 openMidiDevice(snd_rawmidi_stream_t direction, INT32 deviceIndex,
78 MidiDeviceHandle** handle);
79
80// returns 0 on success, otherwise a (negative) ALSA error code
81INT32 closeMidiDevice(MidiDeviceHandle* handle);
82
83INT64 getMidiTimestamp(MidiDeviceHandle* handle);
84
85#endif // PLATFORM_API_LINUXOS_ALSA_MIDIUTILS_H_INCLUDED
86