--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.desktop/linux/native/libjsound/PLATFORM_API_LinuxOS_ALSA_MidiUtils.h	Fri Mar 23 09:51:02 2018 +0100
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2003, 2007, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+#include <alsa/asoundlib.h>
+#include "Utilities.h"
+#include "PlatformMidi.h"
+
+
+#ifndef PLATFORM_API_LINUXOS_ALSA_MIDIUTILS_H_INCLUDED
+#define PLATFORM_API_LINUXOS_ALSA_MIDIUTILS_H_INCLUDED
+
+#define EVENT_PARSER_BUFSIZE (2048)
+
+// if this is defined, use plughw: devices
+//#define ALSA_MIDI_USE_PLUGHW
+#undef ALSA_MIDI_USE_PLUGHW
+
+typedef struct tag_ALSA_MIDIDeviceDescription {
+        int index;          // in
+        int strLen;         // in
+        INT32 deviceID;    // out
+        char* name;         // out
+        char* description;  // out
+} ALSA_MIDIDeviceDescription;
+
+
+const char* getErrorStr(INT32 err);
+
+/* Returns the number of devices. */
+/* direction is either SND_RAWMIDI_STREAM_OUTPUT or
+   SND_RAWMIDI_STREAM_INPUT. */
+int getMidiDeviceCount(snd_rawmidi_stream_t direction);
+
+/* Returns MIDI_SUCCESS or MIDI_INVALID_DEVICEID */
+/* direction is either SND_RAWMIDI_STREAM_OUTPUT or
+   SND_RAWMIDI_STREAM_INPUT. */
+int getMidiDeviceName(snd_rawmidi_stream_t direction, int index,
+                      char *name, UINT32 nameLength);
+
+/* Returns MIDI_SUCCESS or MIDI_INVALID_DEVICEID */
+int getMidiDeviceVendor(int index, char *name, UINT32 nameLength);
+
+/* Returns MIDI_SUCCESS or MIDI_INVALID_DEVICEID */
+/* direction is either SND_RAWMIDI_STREAM_OUTPUT or
+   SND_RAWMIDI_STREAM_INPUT. */
+int getMidiDeviceDescription(snd_rawmidi_stream_t direction, int index,
+                             char *name, UINT32 nameLength);
+
+/* Returns MIDI_SUCCESS or MIDI_INVALID_DEVICEID */
+int getMidiDeviceVersion(int index, char *name, UINT32 nameLength);
+
+// returns 0 on success, otherwise MIDI_OUT_OF_MEMORY or ALSA error code
+/* direction is either SND_RAWMIDI_STREAM_OUTPUT or
+   SND_RAWMIDI_STREAM_INPUT. */
+INT32 openMidiDevice(snd_rawmidi_stream_t direction, INT32 deviceIndex,
+                     MidiDeviceHandle** handle);
+
+// returns 0 on success, otherwise a (negative) ALSA error code
+INT32 closeMidiDevice(MidiDeviceHandle* handle);
+
+INT64 getMidiTimestamp(MidiDeviceHandle* handle);
+
+#endif // PLATFORM_API_LINUXOS_ALSA_MIDIUTILS_H_INCLUDED