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/*
Firmata.cpp - Firmata library
Copyright (c) 2007 Free Software Foundation. All right reserved.
Written by Hans-Christoph Steiner <hans@at.or.at>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
//******************************************************************************
//* Includes
//******************************************************************************
extern "C" {
// AVR LibC Includes
#include <inttypes.h>
#include <stdlib.h>
// Wiring Core Includes
#include "WConstants.h"
}
#include "Firmata.h"
#include "EEPROM.h"
#include "HardwareSerial.h"
//******************************************************************************
//* Definitions
//******************************************************************************
//******************************************************************************
//* Constructors
//******************************************************************************
FirmataClass::FirmataClass()
{
// TODO: init serial here
// TODO: printVersion
}
//******************************************************************************
//* Private Methods
//******************************************************************************
// resets the system state upon a SYSTEM_RESET message from the host software
void FirmataClass::systemReset(void)
{
// TODO automatically call this in response to SYSTEM_RESET
// TODO reset EEPROM to 0 here
}
//******************************************************************************
//* Public Methods
//******************************************************************************
// output type of message that is next on the queue
int FirmataClass::available(void)
{
// TODO output next available message type, or -1 if nothing
}
// output the protocol version message to the serial port
void FirmataClass::printVersion() {
Serial.print(REPORT_VERSION, BYTE);
Serial.print(FIRMATA_MINOR_VERSION, BYTE);
Serial.print(FIRMATA_MAJOR_VERSION, BYTE);
}
// send an analog message
void FirmataClass::sendAnalog(int pin, int value)
{
// pin can only be 0-15, so chop higher bits
Serial.print(ANALOG_MESSAGE | (pin & 0xF), BYTE);
Serial.print(value % 128, BYTE);
Serial.print(value >> 7, BYTE);
}
// send a single digital pin in a digital message
void FirmataClass::sendDigital(int pin, int value)
{
// TODO add single pin digital messages to the protocol
}
// send 14-bits in a single digital message
void FirmataClass::sendDigitalPortPair(int port, int value)
{
// TODO: the digital message should not be sent on the serial port every
// time sendDigital() is called. Instead, it should add it to an int
// which will be sent on a schedule. If a pin changes more than once
// before the digital message is sent on the serial port, it should send a
// digital message for each change.
// TODO: some math needs to happen for pin > 14 since MIDI channels are used
Serial.print(DIGITAL_MESSAGE | (port & 0xF),BYTE);
Serial.print(value % 128, BYTE); // Tx pins 0-6
Serial.print(value >> 7, BYTE); // Tx pins 7-13
}
// Internal Actions/////////////////////////////////////////////////////////////
void FirmataClass::loadState(void)
{
// TODO load state from EEPROM
}
void FirmataClass::saveState(void)
{
// TODO save state to EEPROM
}
void FirmataClass::resetState(void)
{
// TODO reset state bytes in EEPROM
}
// make one instance for the user to use
FirmataClass Firmata;
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