Dependencies: ChaNFSSD mbed ChaNFS
USBDevice/USBMIDI/USBMIDI.cpp
- Committer:
- okini3939
- Date:
- 2011-11-09
- Revision:
- 0:02c293160df3
File content as of revision 0:02c293160df3:
// 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::EPBULK_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; } bool USBMIDI::USBCallback_setConfiguration(uint8_t configuration) { // Called in ISR context // Set configuration. Return false if the // configuration is not supported. 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; }