USBMSD SD card Hello World for Mbed platforms

Dependencies:   mbed USBMSD_SD USBDevice

USBDevice/USBMIDI/USBMIDI.cpp

Committer:
samux
Date:
2011-11-11
Revision:
2:27a7e7f8d399

File content as of revision 2:27a7e7f8d399:

// USB_MIDI.cpp
// MIDI edvice example
// Copyright (c) 2011 ARM Limited. All rights reserved.

#include "stdint.h"
#include "USBMIDI.h"
#include "USBBusInterface.h"


USBMIDI::USBMIDI(uint16_t vendor_id, uint16_t product_id, uint16_t product_release): USBDevice(vendor_id, product_id, product_release) {
    midi_evt = NULL;
}

void USBMIDI::write(MIDIMessage m) {
    USBDevice::write(EPBULK_IN, m.data, 4, MAX_PACKET_SIZE_EPBULK);
}


void USBMIDI::attach(void (*fptr)(MIDIMessage)) {
    midi_evt = fptr;
}


bool USBMIDI::EP2_OUT_callback() {
    uint8_t buf[64];
    uint16_t len;
    read(EPBULK_OUT, buf, &len, 64);

    if (midi_evt != NULL) {
        for (int i=0; i<len; i+=4) {
            midi_evt(MIDIMessage(buf+i));
        }
    }

    // We reactivate the endpoint to receive next characters
    readStart(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK);
    return true;
}



// Called in ISR context
// Set configuration. Return false if the
// configuration is not supported.
bool USBMIDI::USBCallback_setConfiguration(uint8_t configuration) {
    if (configuration != DEFAULT_CONFIGURATION) {
        return false;
    }

    // Configure endpoints > 0
    addEndpoint(EPBULK_IN, MAX_PACKET_SIZE_EPBULK);
    addEndpoint(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK);

    // We activate the endpoint to be able to receive data
    readStart(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK);
    return true;
}


uint8_t * USBMIDI::stringIinterfaceDesc() {
    static uint8_t stringIinterfaceDescriptor[] = {
        0x0c,                           //bLength
        STRING_DESCRIPTOR,              //bDescriptorType 0x03
        'A',0,'u',0,'d',0,'i',0,'o',0   //bString iInterface - Audio
    };
    return stringIinterfaceDescriptor;
}

uint8_t * USBMIDI::stringIproductDesc() {
    static uint8_t stringIproductDescriptor[] = {
        0x16,                                                       //bLength
        STRING_DESCRIPTOR,                                          //bDescriptorType 0x03
        'M',0,'b',0,'e',0,'d',0,' ',0,'A',0,'u',0,'d',0,'i',0,'o',0 //bString iProduct - Mbed Audio
    };
    return stringIproductDescriptor;
}


uint8_t * USBMIDI::configurationDesc() {
    static uint8_t configDescriptor[] = {
        // configuration descriptor
        0x09, 0x02, 0x65, 0x00, 0x02, 0x01, 0x00, 0xc0, 0x50,

        // The Audio Interface Collection
        0x09, 0x04, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00, 0x00, // Standard AC Interface Descriptor
        0x09, 0x24, 0x01, 0x00, 0x01, 0x09, 0x00, 0x01, 0x01, // Class-specific AC Interface Descriptor
        0x09, 0x04, 0x01, 0x00, 0x02, 0x01, 0x03, 0x00, 0x00, // MIDIStreaming Interface Descriptors
        0x07, 0x24, 0x01, 0x00, 0x01, 0x41, 0x00,             // Class-Specific MS Interface Header Descriptor

        // MIDI IN JACKS
        0x06, 0x24, 0x02, 0x01, 0x01, 0x00,
        0x06, 0x24, 0x02, 0x02, 0x02, 0x00,

        // MIDI OUT JACKS
        0x09, 0x24, 0x03, 0x01, 0x03, 0x01, 0x02, 0x01, 0x00,
        0x09, 0x24, 0x03, 0x02, 0x06, 0x01, 0x01, 0x01, 0x00,

        // OUT endpoint descriptor
        0x09, 0x05, 0x02, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00,
        0x05, 0x25, 0x01, 0x01, 0x01,

        // IN endpoint descriptor
        0x09, 0x05, 0x82, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00,
        0x05, 0x25, 0x01, 0x01, 0x03,
    };
    return configDescriptor;
}