Diff: USBHostMIDI/USBHostMIDI.h

Revision:

18:bac56d0365e1

Child:

22:81d8c59d1070

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/USBHostMIDI/USBHostMIDI.h	Wed Jun 25 20:48:01 2014 +0000
@@ -0,0 +1,159 @@
+/* USBHostMidi library
+ * Originaled by k.shoji
+ * porting by Takuya Urakawa
+ */
+
+/* mbed USBHost Library
+ * Copyright (c) 2006-2013 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef USBHOSTMIDI_H
+#define USBHOSTMIDI_H
+
+#include "USBHostConf.h"
+
+#if USBHOST_MIDI
+
+#include "USBHost.h"
+
+// STM nucleo boards do not support mbed-rtos
+//#include "MtxCircBuffer.h"
+#include "CircBuffer.h"
+
+/** 
+ * A class to communicate a USB MIDI device
+ */
+class USBHostMIDI : public IUSBEnumerator {
+public:
+    /**
+    * Constructor
+    */
+    USBHostMIDI();
+
+    /**
+    * Check if a USB MIDI device is connected
+    *
+    * @returns true if a midi device is connected
+    */
+    bool connected();
+    
+    /**
+     * Try to connect a midi device
+     *
+     * @return true if connection was successful
+     */
+    bool connect();
+    
+    /**
+     * Attach a callback called when note on is received
+     *
+     * @param ptr function pointer
+     */
+    inline void attachNoteOn(void (*fn)(unsigned char, unsigned char, unsigned char)) {
+        if (fn != NULL) {
+            noteOn = fn;
+        }
+    }
+
+    /**
+     * Attach a callback called when note off is received
+     *
+     * @param ptr function pointer
+     */
+    inline void attachNoteOff(void (*fn)(unsigned char, unsigned char, unsigned char)) {
+        if (fn != NULL) {
+            noteOff = fn;
+        }
+    }
+
+    /**
+     * Attach a callback called when control change is received
+     *
+     * @param ptr function pointer
+     */
+    inline void attachControlChange(void (*fn)(unsigned char, unsigned char, unsigned char)) {
+        if (fn != NULL) {
+            controlChange = fn;
+        }
+    }
+
+    /**
+     * Attach a callback called when program change is received
+     *
+     * @param ptr function pointer
+     */
+    inline void attachProgramChange(void (*fn)(unsigned char, unsigned char)) {
+        if (fn != NULL) {
+            programChange = fn;
+        }
+    }
+
+    /**
+     * Attach a callback called when pitch bend is received
+     *
+     * @param ptr function pointer
+     */
+    inline void attachPitchBend(void (*fn)(unsigned char, unsigned int)) {
+        if (fn != NULL) {
+            pitchBend = fn;
+        }
+    }
+    
+    int sendNoteOn(unsigned char channel, unsigned char note, unsigned char velocity);
+    int sendNoteOff(unsigned char channel, unsigned char note, unsigned char velocity);
+    int sendControlChange(unsigned char channel, unsigned char key, unsigned char value);
+    int sendProgramChange(unsigned char channel, unsigned char program);
+    int sendPitchBend(unsigned char channel, unsigned int value);
+    
+    void poll();
+
+protected:
+    //From IUSBEnumerator
+    virtual void setVidPid(uint16_t vid, uint16_t pid);
+    virtual bool parseInterface(uint8_t intf_nb, uint8_t intf_class, uint8_t intf_subclass, uint8_t intf_protocol); //Must return true if the interface should be parsed
+    virtual bool useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir); //Must return true if the endpoint will be used
+
+private:
+    USBHost * host;
+    USBDeviceConnected * dev;
+    USBEndpoint * bulk_in;
+    USBEndpoint * bulk_out;
+    uint32_t size_bulk_in;
+    uint32_t size_bulk_out;
+
+    bool dev_connected;
+
+    void init();
+
+    CircBuffer<uint8_t, 128> circ_buf;
+
+    uint8_t buf[128];
+
+    void rxHandler();
+
+    void (*noteOn)(unsigned char, unsigned char, unsigned char);
+    void (*noteOff)(unsigned char, unsigned char, unsigned char);
+    void (*controlChange)(unsigned char, unsigned char, unsigned char);
+    void (*programChange)(unsigned char, unsigned char);
+    void (*pitchBend)(unsigned char, unsigned int);
+
+    int midi_intf;
+    bool midi_device_found;
+
+};
+
+#endif
+
+#endif