From 63b18e41c7007da58164382dd145ea7ef4e14bdf Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Wed, 12 Mar 2014 16:15:47 +0000
Subject: added midi example device

git-svn-id: https://svn.spreadspace.org/avr/trunk@251 aa12f405-d877-488e-9caf-2d797e2a1cc7
---
 usb-midi/usb-midi.c | 118 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 118 insertions(+)
 create mode 100644 usb-midi/usb-midi.c

(limited to 'usb-midi/usb-midi.c')

diff --git a/usb-midi/usb-midi.c b/usb-midi/usb-midi.c
new file mode 100644
index 0000000..47e06fa
--- /dev/null
+++ b/usb-midi/usb-midi.c
@@ -0,0 +1,118 @@
+/*
+ *  spreadspace avr utils
+ *
+ *
+ *  Copyright (C) 2013 Christian Pointner <equinox@spreadspace.org>
+ *
+ *  This file is part of spreadspace avr utils.
+ *
+ *  spreadspace avr utils is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  any later version.
+ *
+ *  spreadspace avr utils 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 for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include <avr/io.h>
+#include <avr/wdt.h>
+#include <avr/interrupt.h>
+#include <avr/power.h>
+#include <stdio.h>
+
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2012.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+#include <LUFA/Version.h>
+#include <LUFA/Drivers/USB/USB.h>
+#include "lufa-descriptor-midi.h"
+
+/** LUFA MIDI Class driver interface configuration and state information. This structure is
+ *  passed to all MIDI Class driver functions, so that multiple instances of the same class
+ *  within a device can be differentiated from one another.
+ */
+USB_ClassInfo_MIDI_Device_t Keyboard_MIDI_Interface =
+  {
+    .Config =
+      {
+        .StreamingInterfaceNumber = 1,
+
+        .DataINEndpointNumber      = MIDI_STREAM_IN_EPNUM,
+        .DataINEndpointSize        = MIDI_STREAM_EPSIZE,
+        .DataINEndpointDoubleBank  = false,
+
+        .DataOUTEndpointNumber     = MIDI_STREAM_OUT_EPNUM,
+        .DataOUTEndpointSize       = MIDI_STREAM_EPSIZE,
+        .DataOUTEndpointDoubleBank = false,
+      },
+  };
+
+/** Event handler for the library USB Configuration Changed event. */
+void EVENT_USB_Device_ConfigurationChanged(void)
+{
+  bool ConfigSuccess = true;
+
+  ConfigSuccess &= MIDI_Device_ConfigureEndpoints(&Keyboard_MIDI_Interface);
+}
+
+/** Event handler for the library USB Control Request reception event. */
+void EVENT_USB_Device_ControlRequest(void)
+{
+  MIDI_Device_ProcessControlRequest(&Keyboard_MIDI_Interface);
+}
+
+/* end LUFA MIDI Class driver specific definitions*/
+
+#include "util.h"
+#include "led.h"
+
+int main(void)
+{
+  MCUSR &= ~(1 << WDRF);
+  wdt_disable();
+
+  cpu_init();
+  led_init();
+  USB_Init();
+  sei();
+
+  uint8_t MIDICommand = MIDI_COMMAND_NOTE_ON;
+  for(;;) {
+
+    MIDI_EventPacket_t ReceivedMIDIEvent;
+    while(MIDI_Device_ReceiveEventPacket(&Keyboard_MIDI_Interface, &ReceivedMIDIEvent)) { }
+
+
+    _delay_ms(1000);
+
+    led_on();
+    MIDICommand = (MIDICommand!=MIDI_COMMAND_NOTE_ON) ? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF;
+    MIDI_EventPacket_t MIDIEvent = (MIDI_EventPacket_t)
+      {
+        .CableNumber = 0,
+        .Command     = (MIDICommand >> 4),
+
+        .Data1       = MIDICommand | 1,
+        .Data2       = 0,
+        .Data3       = 0,
+      };
+    MIDI_Device_SendEventPacket(&Keyboard_MIDI_Interface, &MIDIEvent);
+    MIDI_Device_Flush(&Keyboard_MIDI_Interface);
+
+    led_off();
+
+    MIDI_Device_USBTask(&Keyboard_MIDI_Interface);
+    USB_USBTask();
+  }
+}
-- 
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