Diff: USBHostMIDI/USBHostMIDI.h

Revision:

25:45dcbf2ba11d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/USBHostMIDI/USBHostMIDI.h	Fri Jul 11 10:00:48 2014 +0100
@@ -0,0 +1,353 @@
+/* Copyright (c) 2014 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef USBHOSTMIDI_H
+#define USBHOSTMIDI_H
+
+#include "USBHostConf.h"
+
+#if USBHOST_MIDI
+
+#include "USBHost.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 miscellaneous function code is received
+     *
+     * @param ptr function pointer
+     *   prototype: void onMiscellaneousFunctionCode(uint8_t data1, uint8_t data2, uint8_t data3);
+     */
+    inline void attachMiscellaneousFunctionCode(void (*fn)(uint8_t, uint8_t, uint8_t)) {
+        miscellaneousFunctionCode = fn;
+    }
+
+    /**
+     * Attach a callback called when cable event is received
+     *
+     * @param ptr function pointer
+     *   prototype: void onCableEvent(uint8_t data1, uint8_t data2, uint8_t data3);
+     */
+    inline void attachCableEvent(void (*fn)(uint8_t, uint8_t, uint8_t)) {
+        cableEvent = fn;
+    }
+
+    /**
+     * Attach a callback called when system exclusive is received
+     *
+     * @param ptr function pointer
+     *   prototype: void onSystemCommonTwoBytes(uint8_t data1, uint8_t data2);
+     */
+    inline void attachSystemCommonTwoBytes(void (*fn)(uint8_t, uint8_t)) {
+        systemCommonTwoBytes = fn;
+    }
+    
+    /**
+     * Attach a callback called when system exclusive is received
+     *
+     * @param ptr function pointer
+     *   prototype: void onSystemCommonThreeBytes(uint8_t data1, uint8_t data2, uint8_t data3);
+     */
+    inline void attachSystemCommonThreeBytes(void (*fn)(uint8_t, uint8_t, uint8_t)) {
+        systemCommonThreeBytes = fn;
+    }
+    
+    /**
+     * Attach a callback called when system exclusive is received
+     *
+     * @param ptr function pointer
+     *   prototype: void onSystemExclusive(uint8_t *data, uint16_t length, bool hasNextData);
+     */
+    inline void attachSystemExclusive(void (*fn)(uint8_t *, uint16_t, bool)) {
+        systemExclusive = fn;
+    }
+
+    /**
+     * Attach a callback called when note on is received
+     *
+     * @param ptr function pointer
+     *   prototype: void onNoteOn(uint8_t channel, uint8_t note, uint8_t velocity);
+     */
+    inline void attachNoteOn(void (*fn)(uint8_t, uint8_t, uint8_t)) {
+        noteOn = fn;
+    }
+
+    /**
+     * Attach a callback called when note off is received
+     *
+     * @param ptr function pointer
+     *   prototype: void onNoteOff(uint8_t channel, uint8_t note, uint8_t velocity);
+     */
+    inline void attachNoteOff(void (*fn)(uint8_t, uint8_t, uint8_t)) {
+        noteOff = fn;
+    }
+
+    /**
+     * Attach a callback called when poly keypress is received
+     *
+     * @param ptr function pointer
+     *   prototype: void onPolyKeyPress(uint8_t channel, uint8_t note, uint8_t pressure);
+     */
+    inline void attachPolyKeyPress(void (*fn)(uint8_t, uint8_t, uint8_t)) {
+        polyKeyPress = fn;
+    }
+
+    /**
+     * Attach a callback called when control change is received
+     *
+     * @param ptr function pointer
+     *   prototype: void onControlChange(uint8_t channel, uint8_t key, uint8_t value);
+     */
+    inline void attachControlChange(void (*fn)(uint8_t, uint8_t, uint8_t)) {
+        controlChange = fn;
+    }
+
+    /**
+     * Attach a callback called when program change is received
+     *
+     * @param ptr function pointer
+     *   prototype: void onProgramChange(uint8_t channel, uint8_t program);
+     */
+    inline void attachProgramChange(void (*fn)(uint8_t, uint8_t)) {
+        programChange = fn;
+    }
+
+    /**
+     * Attach a callback called when channel pressure is received
+     *
+     * @param ptr function pointer
+     *   prototype: void onChannelPressure(uint8_t channel, uint8_t pressure);
+     */
+    inline void attachChannelPressure(void (*fn)(uint8_t, uint8_t)) {
+        channelPressure = fn;
+    }
+
+    /**
+     * Attach a callback called when pitch bend is received
+     *
+     * @param ptr function pointer
+     *   prototype: void onPitchBend(uint8_t channel, uint16_t value);
+     */
+    inline void attachPitchBend(void (*fn)(uint8_t, uint16_t)) {
+        pitchBend = fn;
+    }
+
+    /**
+     * Attach a callback called when single byte is received
+     *
+     * @param ptr function pointer
+     *   prototype: void onSingleByte(uint8_t value);
+     */
+    inline void attachSingleByte(void (*fn)(uint8_t)) {
+        singleByte = fn;
+    }
+
+    /**
+     * Send a cable event with 3 bytes event
+     *
+     * @param data1 0-255
+     * @param data2 0-255
+     * @param data3 0-255
+     * @return true if message sent successfully
+     */
+    bool sendMiscellaneousFunctionCode(uint8_t data1, uint8_t data2, uint8_t data3);
+
+    /**
+     * Send a cable event with 3 bytes event
+     *
+     * @param data1 0-255
+     * @param data2 0-255
+     * @param data3 0-255
+     * @return true if message sent successfully
+     */
+    bool sendCableEvent(uint8_t data1, uint8_t data2, uint8_t data3);
+
+    /**
+     * Send a system common message with 2 bytes event
+     *
+     * @param data1 0-255
+     * @param data2 0-255
+     * @return true if message sent successfully
+     */
+    bool sendSystemCommmonTwoBytes(uint8_t data1, uint8_t data2);
+
+    /**
+     * Send a system common message with 3 bytes event
+     *
+     * @param data1 0-255
+     * @param data2 0-255
+     * @param data3 0-255
+     * @return true if message sent successfully
+     */
+    bool sendSystemCommmonThreeBytes(uint8_t data1, uint8_t data2, uint8_t data3);
+
+    /**
+     * Send a system exclusive event
+     *
+     * @param buffer, starts with 0xF0, and end with 0xf7
+     * @param length
+     * @return true if message sent successfully
+     */
+    bool sendSystemExclusive(uint8_t *buffer, int length);
+
+    /**
+     * Send a note off event
+     *
+     * @param channel 0-15
+     * @param note 0-127
+     * @param velocity 0-127
+     * @return true if message sent successfully
+     */
+    bool sendNoteOff(uint8_t channel, uint8_t note, uint8_t velocity);
+
+    /**
+     * Send a note on event
+     *
+     * @param channel 0-15
+     * @param note 0-127
+     * @param velocity 0-127 (0 means note off)
+     * @return true if message sent successfully
+     */
+    bool sendNoteOn(uint8_t channel, uint8_t note, uint8_t velocity);
+
+    /**
+     * Send a poly keypress event
+     *
+     * @param channel 0-15
+     * @param note 0-127
+     * @param pressure 0-127
+     * @return true if message sent successfully
+     */
+    bool sendPolyKeyPress(uint8_t channel, uint8_t note, uint8_t pressure);
+
+    /**
+     * Send a control change event
+     *
+     * @param channel 0-15
+     * @param key 0-127
+     * @param value 0-127
+     * @return true if message sent successfully
+     */
+    bool sendControlChange(uint8_t channel, uint8_t key, uint8_t value);
+
+    /**
+     * Send a program change event
+     *
+     * @param channel 0-15
+     * @param program 0-127
+     * @return true if message sent successfully
+     */
+    bool sendProgramChange(uint8_t channel, uint8_t program);
+
+    /**
+     * Send a channel pressure event
+     *
+     * @param channel 0-15
+     * @param pressure 0-127
+     * @return true if message sent successfully
+     */
+    bool sendChannelPressure(uint8_t channel, uint8_t pressure);
+
+    /**
+     * Send a control change event
+     *
+     * @param channel 0-15
+     * @param key 0(lower)-8191(center)-16383(higher)
+     * @return true if message sent successfully
+     */
+    bool sendPitchBend(uint8_t channel, uint16_t value);
+
+    /**
+     * Send a single byte event
+     *
+     * @param data 0-255
+     * @return true if message sent successfully
+     */
+    bool sendSingleByte(uint8_t data);
+
+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();
+
+    uint8_t buf[64];
+
+    void rxHandler();
+
+    uint16_t sysExBufferPos;
+    uint8_t sysExBuffer[64];
+
+    void (*miscellaneousFunctionCode)(uint8_t, uint8_t, uint8_t);
+    void (*cableEvent)(uint8_t, uint8_t, uint8_t);
+    void (*systemCommonTwoBytes)(uint8_t, uint8_t);
+    void (*systemCommonThreeBytes)(uint8_t, uint8_t, uint8_t);
+    void (*systemExclusive)(uint8_t *, uint16_t, bool);
+    void (*noteOff)(uint8_t, uint8_t, uint8_t);
+    void (*noteOn)(uint8_t, uint8_t, uint8_t);
+    void (*polyKeyPress)(uint8_t, uint8_t, uint8_t);
+    void (*controlChange)(uint8_t, uint8_t, uint8_t);
+    void (*programChange)(uint8_t, uint8_t);
+    void (*channelPressure)(uint8_t, uint8_t);
+    void (*pitchBend)(uint8_t, uint16_t);
+    void (*singleByte)(uint8_t);
+
+    bool sendMidiBuffer(uint8_t data0, uint8_t data1, uint8_t data2, uint8_t data3);
+
+    int midi_intf;
+    bool midi_device_found;
+
+};
+
+#endif /* USBHOST_MIDI */
+
+#endif /* USBHOSTMIDI_H */