PCA9685.h

/*
 * 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 Street, Fifth Floor, Boston, MA 02110-1301 USA
 *
 * Name        : PCA9685.h
 * Author      : Georgi Todorov
 * Version     :
 * Created on  : Dec 9, 2012
 *
 * Copyright © 2012 Georgi Todorov  <terahz@geodar.com>
 */

#ifndef _PCA9685_H
#define _PCA9685_H
#include <inttypes.h>
#include "I2C.h"
// Register Definitions

#define MODE1 0x00			//Mode  register  1
#define MODE2 0x01			//Mode  register  2
#define SUBADR1 0x02		//I2C-bus subaddress 1
#define SUBADR2 0x03		//I2C-bus subaddress 2
#define SUBADR3 0x04		//I2C-bus subaddress 3
#define ALLCALLADR 0x05     //LED All Call I2C-bus address
#define LED0 0x6			//LED0 start register
#define LED0_ON_L 0x6		//LED0 output and brightness control byte 0
#define LED0_ON_H 0x7		//LED0 output and brightness control byte 1
#define LED0_OFF_L 0x8		//LED0 output and brightness control byte 2
#define LED0_OFF_H 0x9		//LED0 output and brightness control byte 3
#define LED_MULTIPLYER 4	// For the other 15 channels
#define ALLLED_ON_L 0xFA    //load all the LEDn_ON registers, byte 0 (turn 0-7 channels on)
#define ALLLED_ON_H 0xFB	//load all the LEDn_ON registers, byte 1 (turn 8-15 channels on)
#define ALLLED_OFF_L 0xFC	//load all the LEDn_OFF registers, byte 0 (turn 0-7 channels off)
#define ALLLED_OFF_H 0xFD	//load all the LEDn_OFF registers, byte 1 (turn 8-15 channels off)
#define PRE_SCALE 0xFE		//prescaler for output frequency
#define CLOCK_FREQ 25000000.0 //25MHz default osc clock
//! Main class that exports features for PCA9685 chip
class PCA9685 {
public:
	PCA9685();

	PCA9685(int, int);
	virtual ~PCA9685();

        I2C* getI2CDevice();

	void setPWMFreq(int);
	void setPWM(uint8_t, int, int);
	void setPWM(uint8_t, int);
	int getPWM(uint8_t);

private:
	I2C *i2c;
	void reset(void);
};
#endif