/*
* The MySensors Arduino library handles the wireless radio link and protocol
* between your home built sensors/actuators and HA controller of choice.
* The sensors forms a self healing radio network with optional repeaters. Each
* repeater and gateway builds a routing tables in EEPROM which keeps track of the
* network topology allowing messages to be routed to nodes.
*
* Created by Henrik Ekblad <henrik.ekblad@mysensors.org>
* Copyright (C) 2013-2019 Sensnology AB
* Full contributor list: https://github.com/mysensors/MySensors/graphs/contributors
*
* Documentation: http://www.mysensors.org
* Support Forum: http://forum.mysensors.org
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*/
#ifndef BCM_h
#define BCM_h
#include <stdint.h>
#include "bcm2835.h"
#define INPUT BCM2835_GPIO_FSEL_INPT
#define OUTPUT BCM2835_GPIO_FSEL_OUTP
/**
* @brief BCM class
*/
class BCMClass
{
public:
/**
* @brief BCMClass destructor.
*/
~BCMClass();
/**
* @brief Initializes BCM.
*
* @return 1 if successful, else exits the program.
*/
uint8_t init();
/**
* @brief Configures the specified pin to behave either as an input or an output.
*
* @param gpio The GPIO pin number.
* @param mode INPUT or OUTPUT.
*/
void pinMode(uint8_t gpio, uint8_t mode);
/**
* @brief Write a high or a low value for the given pin.
*
* @param gpio The GPIO pin number.
* @param value HIGH or LOW.
*/
void digitalWrite(uint8_t gpio, uint8_t value);
/**
* @brief Reads the value from a specified pin.
*
* @param gpio The GPIO pin number.
* @return HIGH or LOW.
*/
uint8_t digitalRead(uint8_t gpio);
/**
* @brief Returns the same GPIO, no conversion is required.
*
* @param gpio The GPIO pin number.
* @return The GPIO pin number.
*/
inline uint8_t digitalPinToInterrupt(uint8_t gpio);
/**
* @brief Checks if SPI was initialized.
*
* @return 1 if initialized, else 0.
*/
uint8_t isInitialized();
private:
static uint8_t initialized; //!< @brief BCM initialized flag.
};
uint8_t BCMClass::digitalPinToInterrupt(uint8_t gpio)
{
return gpio;
}
extern BCMClass BCM;
#endif