UsbReverseAudioguitarspeaker - This is early stages of my project, the idea of t…

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Philips Philips / Mbed 2 deprecated UsbReverseAudioguitarspeaker

This is early stages of my project, the idea of this project is to be able to mix a guitar with windows sounds in reverse such as instrumental background music or trance music perhaps or maybe another fellow guitarist you may have downloaded from the internet. Microphone or guitar pin is p19 I would use a microphone for drums:) and that it for the moment, the code makes the mbed act as usb speaker that excepts a guitar or microphone input, but with a twist it all in reverse like a guitar reverse effects pedal but only you can mix anything you can get from the internet or any windows sound.

Dependencies: mbed

USBDevice/USBMIDI/USBMIDI.cpp@0:7610d342c76e, 2012-01-08 (annotated)

Committer:: mbed2f
Date:: Sun Jan 08 17:28:24 2012 +0000
Revision:: 0:7610d342c76e

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User	Revision	Line number	New contents of line
mbed2f	0:7610d342c76e	1	/* Copyright (c) 2010-2011 mbed.org, MIT License
mbed2f	0:7610d342c76e	2	*
mbed2f	0:7610d342c76e	3	* Permission is hereby granted, free of charge, to any person obtaining a copy of this software
mbed2f	0:7610d342c76e	4	* and associated documentation files (the "Software"), to deal in the Software without
mbed2f	0:7610d342c76e	5	* restriction, including without limitation the rights to use, copy, modify, merge, publish,
mbed2f	0:7610d342c76e	6	* distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
mbed2f	0:7610d342c76e	7	* Software is furnished to do so, subject to the following conditions:
mbed2f	0:7610d342c76e	8	*
mbed2f	0:7610d342c76e	9	* The above copyright notice and this permission notice shall be included in all copies or
mbed2f	0:7610d342c76e	10	* substantial portions of the Software.
mbed2f	0:7610d342c76e	11	*
mbed2f	0:7610d342c76e	12	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
mbed2f	0:7610d342c76e	13	* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
mbed2f	0:7610d342c76e	14	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
mbed2f	0:7610d342c76e	15	* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
mbed2f	0:7610d342c76e	16	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
mbed2f	0:7610d342c76e	17	*/
mbed2f	0:7610d342c76e	18
mbed2f	0:7610d342c76e	19	#include "stdint.h"
mbed2f	0:7610d342c76e	20	#include "USBMIDI.h"
mbed2f	0:7610d342c76e	21	#include "USBBusInterface.h"
mbed2f	0:7610d342c76e	22
mbed2f	0:7610d342c76e	23
mbed2f	0:7610d342c76e	24	USBMIDI::USBMIDI(uint16_t vendor_id, uint16_t product_id, uint16_t product_release): USBDevice(vendor_id, product_id, product_release) {
mbed2f	0:7610d342c76e	25	midi_evt = NULL;
mbed2f	0:7610d342c76e	26	USBDevice::connect();
mbed2f	0:7610d342c76e	27	}
mbed2f	0:7610d342c76e	28
mbed2f	0:7610d342c76e	29	void USBMIDI::write(MIDIMessage m) {
mbed2f	0:7610d342c76e	30	USBDevice::write(EPBULK_IN, m.data, 4, MAX_PACKET_SIZE_EPBULK);
mbed2f	0:7610d342c76e	31	}
mbed2f	0:7610d342c76e	32
mbed2f	0:7610d342c76e	33
mbed2f	0:7610d342c76e	34	void USBMIDI::attach(void (*fptr)(MIDIMessage)) {
mbed2f	0:7610d342c76e	35	midi_evt = fptr;
mbed2f	0:7610d342c76e	36	}
mbed2f	0:7610d342c76e	37
mbed2f	0:7610d342c76e	38
mbed2f	0:7610d342c76e	39	bool USBMIDI::EP2_OUT_callback() {
mbed2f	0:7610d342c76e	40	uint8_t buf[64];
mbed2f	0:7610d342c76e	41	uint16_t len;
mbed2f	0:7610d342c76e	42	readEP(EPBULK_OUT, buf, &len, 64);
mbed2f	0:7610d342c76e	43
mbed2f	0:7610d342c76e	44	if (midi_evt != NULL) {
mbed2f	0:7610d342c76e	45	for (int i=0; i<len; i+=4) {
mbed2f	0:7610d342c76e	46	midi_evt(MIDIMessage(buf+i));
mbed2f	0:7610d342c76e	47	}
mbed2f	0:7610d342c76e	48	}
mbed2f	0:7610d342c76e	49
mbed2f	0:7610d342c76e	50	// We reactivate the endpoint to receive next characters
mbed2f	0:7610d342c76e	51	readStart(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK);
mbed2f	0:7610d342c76e	52	return true;
mbed2f	0:7610d342c76e	53	}
mbed2f	0:7610d342c76e	54
mbed2f	0:7610d342c76e	55
mbed2f	0:7610d342c76e	56
mbed2f	0:7610d342c76e	57	// Called in ISR context
mbed2f	0:7610d342c76e	58	// Set configuration. Return false if the
mbed2f	0:7610d342c76e	59	// configuration is not supported.
mbed2f	0:7610d342c76e	60	bool USBMIDI::USBCallback_setConfiguration(uint8_t configuration) {
mbed2f	0:7610d342c76e	61	if (configuration != DEFAULT_CONFIGURATION) {
mbed2f	0:7610d342c76e	62	return false;
mbed2f	0:7610d342c76e	63	}
mbed2f	0:7610d342c76e	64
mbed2f	0:7610d342c76e	65	// Configure endpoints > 0
mbed2f	0:7610d342c76e	66	addEndpoint(EPBULK_IN, MAX_PACKET_SIZE_EPBULK);
mbed2f	0:7610d342c76e	67	addEndpoint(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK);
mbed2f	0:7610d342c76e	68
mbed2f	0:7610d342c76e	69	// We activate the endpoint to be able to receive data
mbed2f	0:7610d342c76e	70	readStart(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK);
mbed2f	0:7610d342c76e	71	return true;
mbed2f	0:7610d342c76e	72	}
mbed2f	0:7610d342c76e	73
mbed2f	0:7610d342c76e	74
mbed2f	0:7610d342c76e	75	uint8_t * USBMIDI::stringIinterfaceDesc() {
mbed2f	0:7610d342c76e	76	static uint8_t stringIinterfaceDescriptor[] = {
mbed2f	0:7610d342c76e	77	0x0c, //bLength
mbed2f	0:7610d342c76e	78	STRING_DESCRIPTOR, //bDescriptorType 0x03
mbed2f	0:7610d342c76e	79	'A',0,'u',0,'d',0,'i',0,'o',0 //bString iInterface - Audio
mbed2f	0:7610d342c76e	80	};
mbed2f	0:7610d342c76e	81	return stringIinterfaceDescriptor;
mbed2f	0:7610d342c76e	82	}
mbed2f	0:7610d342c76e	83
mbed2f	0:7610d342c76e	84	uint8_t * USBMIDI::stringIproductDesc() {
mbed2f	0:7610d342c76e	85	static uint8_t stringIproductDescriptor[] = {
mbed2f	0:7610d342c76e	86	0x16, //bLength
mbed2f	0:7610d342c76e	87	STRING_DESCRIPTOR, //bDescriptorType 0x03
mbed2f	0:7610d342c76e	88	'M',0,'b',0,'e',0,'d',0,' ',0,'A',0,'u',0,'d',0,'i',0,'o',0 //bString iProduct - Mbed Audio
mbed2f	0:7610d342c76e	89	};
mbed2f	0:7610d342c76e	90	return stringIproductDescriptor;
mbed2f	0:7610d342c76e	91	}
mbed2f	0:7610d342c76e	92
mbed2f	0:7610d342c76e	93
mbed2f	0:7610d342c76e	94	uint8_t * USBMIDI::configurationDesc() {
mbed2f	0:7610d342c76e	95	static uint8_t configDescriptor[] = {
mbed2f	0:7610d342c76e	96	// configuration descriptor
mbed2f	0:7610d342c76e	97	0x09, 0x02, 0x65, 0x00, 0x02, 0x01, 0x00, 0xc0, 0x50,
mbed2f	0:7610d342c76e	98
mbed2f	0:7610d342c76e	99	// The Audio Interface Collection
mbed2f	0:7610d342c76e	100	0x09, 0x04, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00, 0x00, // Standard AC Interface Descriptor
mbed2f	0:7610d342c76e	101	0x09, 0x24, 0x01, 0x00, 0x01, 0x09, 0x00, 0x01, 0x01, // Class-specific AC Interface Descriptor
mbed2f	0:7610d342c76e	102	0x09, 0x04, 0x01, 0x00, 0x02, 0x01, 0x03, 0x00, 0x00, // MIDIStreaming Interface Descriptors
mbed2f	0:7610d342c76e	103	0x07, 0x24, 0x01, 0x00, 0x01, 0x41, 0x00, // Class-Specific MS Interface Header Descriptor
mbed2f	0:7610d342c76e	104
mbed2f	0:7610d342c76e	105	// MIDI IN JACKS
mbed2f	0:7610d342c76e	106	0x06, 0x24, 0x02, 0x01, 0x01, 0x00,
mbed2f	0:7610d342c76e	107	0x06, 0x24, 0x02, 0x02, 0x02, 0x00,
mbed2f	0:7610d342c76e	108
mbed2f	0:7610d342c76e	109	// MIDI OUT JACKS
mbed2f	0:7610d342c76e	110	0x09, 0x24, 0x03, 0x01, 0x03, 0x01, 0x02, 0x01, 0x00,
mbed2f	0:7610d342c76e	111	0x09, 0x24, 0x03, 0x02, 0x06, 0x01, 0x01, 0x01, 0x00,
mbed2f	0:7610d342c76e	112
mbed2f	0:7610d342c76e	113	// OUT endpoint descriptor
mbed2f	0:7610d342c76e	114	0x09, 0x05, 0x02, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00,
mbed2f	0:7610d342c76e	115	0x05, 0x25, 0x01, 0x01, 0x01,
mbed2f	0:7610d342c76e	116
mbed2f	0:7610d342c76e	117	// IN endpoint descriptor
mbed2f	0:7610d342c76e	118	0x09, 0x05, 0x82, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00,
mbed2f	0:7610d342c76e	119	0x05, 0x25, 0x01, 0x01, 0x03,
mbed2f	0:7610d342c76e	120	};
mbed2f	0:7610d342c76e	121	return configDescriptor;
mbed2f	0:7610d342c76e	122	}

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	08 Jan 2012
Imports:	8
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	1
Followers:	2

USBDevice/USBMIDI/USBMIDI.cpp@0:7610d342c76e, 2012-01-08 (annotated)

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