DrvGpio.hpp

//------------------------------------------------------------------------------
//This file is part of embKernel. 
//See license.txt for the full license governing this code.
//------------------------------------------------------------------------------

#ifndef DRV_GPIO_HPP_
#define DRV_GPIO_HPP_

#include "DrvTypes.hpp"
#include "stm32f4xx.h"

class DrvGpio {
public:

    //Generic functions
    void init(DrvTypes::PORT port, DrvTypes::PIN pin, DrvTypes::GPIO_FUNCTION func, DrvTypes::GPIO_MODE mode, DrvTypes::GPIO_PUPD pupd =
            DrvTypes::PUPD_NONE);
    void setPinFuncMode(DrvTypes::GPIO_FUNCTION func, DrvTypes::GPIO_MODE mode, DrvTypes::GPIO_PUPD pupd = DrvTypes::PUPD_NONE);
    inline operator bool() {
        return ((mGpio->IDR & mPinMask) != 0) ? true : false;
    }
    inline bool operator =(bool state) {
        volatile uint32_t* bsrr = (uint32_t*) &mGpio->BSRRL;
        if (state) {
            *bsrr = mPinMask;
        }
        else {
            *bsrr = mPinMask << 16;
        }
        return state;
    }
    static void setPinFuncMode(DrvTypes::PORT port, DrvTypes::PIN pin, DrvTypes::GPIO_FUNCTION func, DrvTypes::GPIO_MODE mode, DrvTypes::GPIO_PUPD pupd =
            DrvTypes::PUPD_NONE);

private:
    DrvTypes::PORT mPort;
    DrvTypes::PIN mPin;
    GPIO_TypeDef* mGpio;
    uint32_t mPinMask;
};

#endif /* DRV_GPIO_HPP_ */