#ifndef PISPI_H
#define PISPI_H

#include "piiodevice.h"


class PIP_EXPORT PISPI: public PIIODevice
{
	PIIODEVICE(PISPI)
public:
	explicit PISPI(const PIString & path = PIString(), uint speed_hz = 1000000, PIIODevice::DeviceMode mode = PIIODevice::ReadWrite);
	~PISPI() {}

	//! \brief Parameters of PISPI
	enum Parameters {
		ClockInverse /*! SPI clk polarity control check and generate */ = 0x1,
		ParityOdd /*! Parity is odd instead of even */ = 0x2,
		TwoStopBits /*! Two stop bits instead of one */ = 0x4
	};

	void setSpeed(uint speed_hz);
	uint speed() const {return spi_speed;}

	void setBits(uchar bits = 8);
	uchar bits() const {return spi_bits;}

protected:
	bool openDevice();
	bool closeDevice();
	int readDevice(void * read_to, int max_size);
	int writeDevice(const void * data, int max_size);

private:
	uint spi_speed;
	uchar spi_mode;
	uchar spi_bits;
	PIByteArray tx_buf, rx_buf;
	PIByteArray recv_buf;
	PRIVATE_DECLARATION
};

#endif // PISPI_H