git-svn-id: svn://db.shs.com.ru/pip@632 12ceb7fc-bf1f-11e4-8940-5bc7170c53b5

src_main/io_devices/pispi.h

@@ -0,0 +1,59 @@
+#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*/ = 0x1,
+		ClockPhaseShift /*! SPI clk phase control */ = 0x2,
+	};
+
+	void setSpeed(uint speed_hz);
+	uint speed() const {return spi_speed;}
+
+	void setBits(uchar bits = 8);
+	uchar bits() const {return spi_bits;}
+
+	//! Set parameters to "parameters_"
+	void setParameters(PIFlags<PISPI::Parameters> parameters_) {spi_mode = (int)parameters_;}
+
+	//! Set parameter "parameter" to "on" state
+	void setParameter(PISPI::Parameters parameter, bool on = true);
+
+	//! Returns if parameter "parameter" is set
+	bool isParameterSet(PISPI::Parameters parameter) const;
+
+	//! Returns parameters
+	PIFlags<PISPI::Parameters> parameters() const {return spi_mode;}
+
+
+protected:
+	bool openDevice();
+	bool closeDevice();
+	int readDevice(void * read_to, int max_size);
+	int writeDevice(const void * data, int max_size);
+
+	PIString fullPathPrefix() const {return PIStringAscii("spi");}
+	PIString constructFullPathDevice() const;
+	void configureFromFullPathDevice(const PIString & full_path);
+	DeviceInfoFlags deviceInfoFlags() const {return PIIODevice::Sequential;}
+
+private:
+	uint spi_speed;
+	uchar spi_mode;
+	uchar spi_bits;
+	PIByteArray tx_buf, rx_buf;
+	PIByteArray recv_buf;
+	PRIVATE_DECLARATION
+};
+
+#endif // PISPI_H