60 lines
1.6 KiB
C++
60 lines
1.6 KiB
C++
#ifndef PISPI_H
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#define PISPI_H
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#include "piiodevice.h"
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class PIP_EXPORT PISPI: public PIIODevice
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{
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PIIODEVICE(PISPI)
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public:
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explicit PISPI(const PIString & path = PIString(), uint speed_hz = 1000000, PIIODevice::DeviceMode mode = PIIODevice::ReadWrite);
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~PISPI() {}
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//! \brief Parameters of PISPI
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enum Parameters {
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ClockInverse /*! SPI clk polarity control*/ = 0x1,
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ClockPhaseShift /*! SPI clk phase control */ = 0x2,
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};
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void setSpeed(uint speed_hz);
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uint speed() const {return spi_speed;}
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void setBits(uchar bits = 8);
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uchar bits() const {return spi_bits;}
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//! Set parameters to "parameters_"
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void setParameters(PIFlags<PISPI::Parameters> parameters_) {spi_mode = (int)parameters_;}
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//! Set parameter "parameter" to "on" state
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void setParameter(PISPI::Parameters parameter, bool on = true);
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//! Returns if parameter "parameter" is set
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bool isParameterSet(PISPI::Parameters parameter) const;
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//! Returns parameters
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PIFlags<PISPI::Parameters> parameters() const {return spi_mode;}
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protected:
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bool openDevice();
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bool closeDevice();
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int readDevice(void * read_to, int max_size);
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int writeDevice(const void * data, int max_size);
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PIString fullPathPrefix() const {return PIStringAscii("spi");}
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PIString constructFullPathDevice() const;
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void configureFromFullPathDevice(const PIString & full_path);
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DeviceInfoFlags deviceInfoFlags() const {return PIIODevice::Sequential;}
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private:
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uint spi_speed;
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uchar spi_mode;
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uchar spi_bits;
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PIByteArray tx_buf, rx_buf;
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PIByteArray recv_buf;
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PRIVATE_DECLARATION
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};
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#endif // PISPI_H
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