/*
* Copyright (c) by BlackMark 2016-2017
* Date 14/09/2017
* Version 1.2
*/

#ifndef SPI_H
#define SPI_H

#include <avr/io.h>
#include "../inout/inout.h"

class SPI
{
public:
	enum class ClockDiv
	{
		CLKDIV_4 = 0,
		CLKDIV_16 = 1,
		CLKDIV_64 = 2,
		CLKDIV_128 = 3,

		CLKDIV_2X_2 = 4,
		CLKDIV_2X_8 = 5,
		CLKDIV_2X_32 = 6,
		CLKDIV_2X_64 = 7
	};

	enum class Mode
	{
		MODE_0 = 0,
		MODE_1 = 1,
		MODE_2 = 2,
		MODE_3 = 3
	};

private:
	static void setCPOL( bool bCPOL );
	static void setCPHA( bool bCPHA );

	static constexpr InOut::Pin sm_enmSCK = InOut::Pin::P_B5;
	static constexpr InOut::Pin sm_enmMISO = InOut::Pin::P_B4;
	static constexpr InOut::Pin sm_enmMOSI = InOut::Pin::P_B3;
	static constexpr InOut::Pin sm_enmSS = InOut::Pin::P_B2;

	static InOutPin sm_cSCK;
	static InOutPin sm_cMISO;
	static InOutPin sm_cMOSI;
	static InOutPin sm_cSS;

public:
	static void init( ClockDiv enmClockDiv = ClockDiv::CLKDIV_128, Mode enmMode = Mode::MODE_0, bool bMaster = true, bool bLSBFirst = false );
	static void setClockDiv( ClockDiv enmClockDiv );
	static void setMode( Mode enmMode );
	static void setMaster( bool bMaster );
	static void setBitOrder( bool bLSBFirst );

	static uint8_t transfer( uint8_t ui8Data );

	static void select( bool bSelect );
};

#endif